Attachment 347534 Details for Bug 188751 – Patch

[patch] Patch

bug-188751-20180820125835.patch (text/plain), 6.70 MB, created by youenn fablet on 2018-08-20 12:58:37 PDT

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Creator: youenn fablet

Created: 2018-08-20 12:58:37 PDT

Size: 6.70 MB

patch

obsolete

>Subversion Revision: 235086
>diff --git a/Source/ThirdParty/libwebrtc/ChangeLog b/Source/ThirdParty/libwebrtc/ChangeLog
>index 8f6aebb7b6a3180594ca725b53c386667e26ab93..30a320b425cbbbb9babca69e9a2885267c4d2e73 100644
>--- a/Source/ThirdParty/libwebrtc/ChangeLog
>+++ b/Source/ThirdParty/libwebrtc/ChangeLog
>@@ -1,3 +1,16 @@
>+2018-08-20  Youenn Fablet  <youenn@apple.com>
>+
>+        Update some libwebrtc third party libraries as per libwebrtc 984f1a80c0c
>+        https://bugs.webkit.org/show_bug.cgi?id=188751
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        new-refreshed-third-party-libwebrtc
>+
>+        * Source/third_party/abseil-cpp: Added.
>+        * Source/third_party/libyuv: Refreshed.
>+        * Source/third_party/rnnoise: Added.
>+
> 2018-08-06  David Kilzer  <ddkilzer@apple.com>
> 
>         [libwebrtc] SafeSetError() in peerconnection.cc contains use-after-move of webrtc::RTCError variable
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md
>new file mode 100644
>index 0000000000000000000000000000000000000000..ed5461f166c3f7ae1c177054e1a3b3e3970f3cb4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/ABSEIL_ISSUE_TEMPLATE.md
>@@ -0,0 +1,22 @@
>+Please submit a new Abseil Issue using the template below:
>+
>+## [Short title of proposed API change(s)]
>+
>+--------------------------------------------------------------------------------
>+--------------------------------------------------------------------------------
>+
>+## Background
>+
>+[Provide the background information that is required in order to evaluate the
>+proposed API changes. No controversial claims should be made here. If there are
>+design constraints that need to be considered, they should be presented here
>+**along with justification for those constraints**. Linking to other docs is
>+good, but please keep the **pertinent information as self contained** as
>+possible in this section.]
>+
>+## Proposed API Change (s)
>+
>+[Please clearly describe the API change(s) being proposed. If multiple changes,
>+please keep them clearly distinguished. When possible, **use example code
>+snippets to illustrate before-after API usages**. List pros-n-cons. Highlight
>+the main questions that you want to be answered. Given the Abseil project compatibility requirements, describe why the API change is safe.]
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/AUTHORS b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/AUTHORS
>new file mode 100644
>index 0000000000000000000000000000000000000000..976d31defc263902a9fe3b54d9ba3cf0d1185447
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/AUTHORS
>@@ -0,0 +1,6 @@
>+# This is the list of Abseil authors for copyright purposes.
>+#
>+# This does not necessarily list everyone who has contributed code, since in
>+# some cases, their employer may be the copyright holder.  To see the full list
>+# of contributors, see the revision history in source control.
>+Google Inc.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..253a602e2f16792f1e286a524a1e032d23276df8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/BUILD.gn
>@@ -0,0 +1,77 @@
>+# Copyright (c) 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+# Flags specified here must not impact ABI. Code compiled with and without these
>+# opts will be linked together, and in some cases headers compiled with and
>+# without these options will be part of the same program.
>+
>+import("//build/toolchain/toolchain.gni")
>+
>+group("default") {
>+  deps = [
>+    "absl/types:any",
>+    "absl/types:bad_any_cast",
>+    "absl/types:span",
>+    "absl/types:optional",
>+    "absl/types:bad_optional_access",
>+  ]
>+}
>+
>+config("absl_include_config") {
>+  include_dirs = [ "." ]
>+}
>+
>+config("absl_define_config") {
>+  defines = [ "ABSL_ALLOCATOR_NOTHROW=1" ]
>+}
>+
>+config("absl_default_cflags_cc") {
>+  cflags_cc = []
>+  if (is_clang) {
>+    cflags_cc += [
>+      # TODO(crbug.com/588506): Explicitly enable conversion warnings.
>+      "-Wbool-conversion",
>+      "-Wconstant-conversion",
>+      "-Wenum-conversion",
>+      "-Wint-conversion",
>+      "-Wliteral-conversion",
>+      "-Wnon-literal-null-conversion",
>+      "-Wnull-conversion",
>+      "-Wobjc-literal-conversion",
>+      "-Wno-sign-conversion",
>+      "-Wstring-conversion",
>+    ]
>+    if (!is_nacl && !use_xcode_clang) {
>+      cflags_cc += [ "-Wbitfield-enum-conversion" ]
>+    }
>+  }
>+  if (is_win) {
>+    cflags_cc += [
>+      "/wd4005",  # macro-redefinition
>+      "/wd4018",  # sign-compare
>+      "/wd4068",  # unknown pragma
>+      "/wd4702",  # unreachable code
>+    ]
>+  }
>+}
>+
>+config("absl_test_cflags_cc") {
>+  cflags_cc = []
>+  if (is_clang || !is_win) {
>+    cflags_cc += [
>+      "-Wno-conversion-null",
>+      "-Wno-missing-declarations",
>+      "-Wno-sign-compare",
>+      "-Wno-unused-function",
>+      "-Wno-unused-parameter",
>+      "-Wno-unused-private-field",
>+    ]
>+  }
>+  if (is_win) {
>+    cflags_cc += [
>+      "/wd4018",  # signed/unsigned mismatch
>+      "/wd4101",  # unreferenced local variable
>+    ]
>+  }
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/AbseilHelpers.cmake b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/AbseilHelpers.cmake
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4eafe49e47906515e448a2def59f7629b2ba393
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/AbseilHelpers.cmake
>@@ -0,0 +1,170 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#    http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+include(CMakeParseArguments)
>+
>+# The IDE folder for Abseil that will be used if Abseil is included in a CMake
>+# project that sets
>+#    set_property(GLOBAL PROPERTY USE_FOLDERS ON)
>+# For example, Visual Studio supports folders.
>+set(ABSL_IDE_FOLDER Abseil)
>+
>+#
>+# create a library in the absl namespace
>+#
>+# parameters
>+# SOURCES : sources files for the library
>+# PUBLIC_LIBRARIES: targets and flags for linking phase
>+# PRIVATE_COMPILE_FLAGS: compile flags for the library. Will not be exported.
>+# EXPORT_NAME: export name for the absl:: target export
>+# TARGET: target name
>+#
>+# create a target associated to <NAME>
>+# libraries are installed under CMAKE_INSTALL_FULL_LIBDIR by default
>+#
>+function(absl_library)
>+  cmake_parse_arguments(ABSL_LIB
>+    "DISABLE_INSTALL" # keep that in case we want to support installation one day
>+    "TARGET;EXPORT_NAME"
>+    "SOURCES;PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS"
>+    ${ARGN}
>+  )
>+
>+  set(_NAME ${ABSL_LIB_TARGET})
>+  string(TOUPPER ${_NAME} _UPPER_NAME)
>+
>+  add_library(${_NAME} STATIC ${ABSL_LIB_SOURCES})
>+
>+  target_compile_options(${_NAME} PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_LIB_PRIVATE_COMPILE_FLAGS})
>+  target_link_libraries(${_NAME} PUBLIC ${ABSL_LIB_PUBLIC_LIBRARIES})
>+  target_include_directories(${_NAME}
>+    PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_LIB_PUBLIC_INCLUDE_DIRS}
>+    PRIVATE ${ABSL_LIB_PRIVATE_INCLUDE_DIRS}
>+  )
>+  # Add all Abseil targets to a a folder in the IDE for organization.
>+  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
>+
>+  if(ABSL_LIB_EXPORT_NAME)
>+    add_library(absl::${ABSL_LIB_EXPORT_NAME} ALIAS ${_NAME})
>+  endif()
>+endfunction()
>+
>+
>+
>+#
>+# header only virtual target creation
>+#
>+function(absl_header_library)
>+  cmake_parse_arguments(ABSL_HO_LIB
>+    "DISABLE_INSTALL"
>+    "EXPORT_NAME;TARGET"
>+    "PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS;PUBLIC_INCLUDE_DIRS;PRIVATE_INCLUDE_DIRS"
>+    ${ARGN}
>+  )
>+
>+  set(_NAME ${ABSL_HO_LIB_TARGET})
>+
>+  set(__dummy_header_only_lib_file "${CMAKE_CURRENT_BINARY_DIR}/${_NAME}_header_only_dummy.cc")
>+
>+  if(NOT EXISTS ${__dummy_header_only_lib_file})
>+    file(WRITE ${__dummy_header_only_lib_file}
>+      "/* generated file for header-only cmake target */
>+
>+      namespace absl {
>+
>+       // single meaningless symbol
>+       void ${_NAME}__header_fakesym() {}
>+      }  // namespace absl
>+      "
>+    )
>+  endif()
>+
>+
>+  add_library(${_NAME} ${__dummy_header_only_lib_file})
>+  target_link_libraries(${_NAME} PUBLIC ${ABSL_HO_LIB_PUBLIC_LIBRARIES})
>+  target_include_directories(${_NAME}
>+    PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_HO_LIB_PUBLIC_INCLUDE_DIRS}
>+    PRIVATE ${ABSL_HO_LIB_PRIVATE_INCLUDE_DIRS}
>+  )
>+
>+  # Add all Abseil targets to a a folder in the IDE for organization.
>+  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
>+
>+  if(ABSL_HO_LIB_EXPORT_NAME)
>+    add_library(absl::${ABSL_HO_LIB_EXPORT_NAME} ALIAS ${_NAME})
>+  endif()
>+
>+endfunction()
>+
>+
>+#
>+# create an abseil unit_test and add it to the executed test list
>+#
>+# parameters
>+# TARGET: target name prefix
>+# SOURCES: sources files for the tests
>+# PUBLIC_LIBRARIES: targets and flags for linking phase.
>+# PRIVATE_COMPILE_FLAGS: compile flags for the test. Will not be exported.
>+#
>+# create a target associated to <NAME>_bin
>+#
>+# all tests will be register for execution with add_test()
>+#
>+# test compilation and execution is disable when BUILD_TESTING=OFF
>+#
>+function(absl_test)
>+
>+  cmake_parse_arguments(ABSL_TEST
>+    ""
>+    "TARGET"
>+    "SOURCES;PUBLIC_LIBRARIES;PRIVATE_COMPILE_FLAGS;PUBLIC_INCLUDE_DIRS"
>+    ${ARGN}
>+  )
>+
>+
>+  if(BUILD_TESTING)
>+
>+    set(_NAME ${ABSL_TEST_TARGET})
>+    string(TOUPPER ${_NAME} _UPPER_NAME)
>+
>+    add_executable(${_NAME}_bin ${ABSL_TEST_SOURCES})
>+
>+    target_compile_options(${_NAME}_bin PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_TEST_PRIVATE_COMPILE_FLAGS})
>+    target_link_libraries(${_NAME}_bin PUBLIC ${ABSL_TEST_PUBLIC_LIBRARIES} ${ABSL_TEST_COMMON_LIBRARIES})
>+    target_include_directories(${_NAME}_bin
>+      PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_TEST_PUBLIC_INCLUDE_DIRS}
>+      PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
>+    )
>+
>+    # Add all Abseil targets to a a folder in the IDE for organization.
>+    set_property(TARGET ${_NAME}_bin PROPERTY FOLDER ${ABSL_IDE_FOLDER})
>+
>+    add_test(${_NAME} ${_NAME}_bin)
>+  endif(BUILD_TESTING)
>+
>+endfunction()
>+
>+
>+
>+
>+function(check_target my_target)
>+
>+  if(NOT TARGET ${my_target})
>+    message(FATAL_ERROR " ABSL: compiling absl requires a ${my_target} CMake target in your project,
>+                   see CMake/README.md for more details")
>+  endif(NOT TARGET ${my_target})
>+
>+endfunction()
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/CMakeLists.txt.in b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/CMakeLists.txt.in
>new file mode 100644
>index 0000000000000000000000000000000000000000..d60a33e9ac6a6ddfe0ebd181b33743f95e67b5a5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/CMakeLists.txt.in
>@@ -0,0 +1,15 @@
>+cmake_minimum_required(VERSION 2.8.2)
>+
>+project(googletest-download NONE)
>+
>+include(ExternalProject)
>+ExternalProject_Add(googletest
>+  GIT_REPOSITORY    https://github.com/google/googletest.git
>+  GIT_TAG           master
>+  SOURCE_DIR        "${CMAKE_BINARY_DIR}/googletest-src"
>+  BINARY_DIR        "${CMAKE_BINARY_DIR}/googletest-build"
>+  CONFIGURE_COMMAND ""
>+  BUILD_COMMAND     ""
>+  INSTALL_COMMAND   ""
>+  TEST_COMMAND      ""
>+)
>\ No newline at end of file
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/DownloadGTest.cmake b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/DownloadGTest.cmake
>new file mode 100644
>index 0000000000000000000000000000000000000000..9d4132158b8df3aaf65d442f148521525fb253da
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/DownloadGTest.cmake
>@@ -0,0 +1,32 @@
>+# Downloads and unpacks googletest at configure time.  Based on the instructions
>+# at https://github.com/google/googletest/tree/master/googletest#incorporating-into-an-existing-cmake-project
>+
>+# Download the latest googletest from Github master
>+configure_file(
>+  ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in
>+  googletest-download/CMakeLists.txt
>+)
>+
>+# Configure and build the downloaded googletest source
>+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
>+  RESULT_VARIABLE result
>+  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
>+if(result)
>+  message(FATAL_ERROR "CMake step for googletest failed: ${result}")
>+endif()
>+
>+execute_process(COMMAND ${CMAKE_COMMAND} --build .
>+  RESULT_VARIABLE result
>+  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
>+if(result)
>+  message(FATAL_ERROR "Build step for googletest failed: ${result}")
>+endif()
>+
>+# Prevent overriding the parent project's compiler/linker settings on Windows
>+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
>+
>+# Add googletest directly to our build. This defines the gtest and gtest_main
>+# targets.
>+add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
>+                 ${CMAKE_BINARY_DIR}/googletest-build
>+                 EXCLUDE_FROM_ALL)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/README.md b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/README.md
>new file mode 100644
>index 0000000000000000000000000000000000000000..79bbe24d5ad4f40a4391bfab05ab77ca00032e7f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMake/README.md
>@@ -0,0 +1,107 @@
>+# Abseil CMake Build Instructions
>+
>+Abseil comes with a CMake build script ([CMakeLists.txt](../CMakeLists.txt))
>+that can be used on a wide range of platforms ("C" stands for cross-platform.).
>+If you don't have CMake installed already, you can download it for free from
>+<http://www.cmake.org/>.
>+
>+CMake works by generating native makefiles or build projects that can
>+be used in the compiler environment of your choice.
>+
>+For API/ABI compatibility reasons, we strongly recommend building Abseil in a
>+subdirectory of your project or as an embedded dependency.
>+
>+## Incorporating Abseil Into a CMake Project
>+
>+The recommendations below are similar to those for using CMake within the
>+googletest framework
>+(<https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project>)
>+
>+### Step-by-Step Instructions
>+
>+1. If you want to build the Abseil tests, integrate the Abseil dependency
>+[Google Test](https://github.com/google/googletest) into your CMake project. To disable Abseil tests, you have to pass
>+`-DBUILD_TESTING=OFF` when configuring your project with CMake.
>+
>+2. Download Abseil and copy it into a subdirectory in your CMake project or add
>+Abseil as a [git submodule](https://git-scm.com/docs/git-submodule) in your
>+CMake project.
>+
>+3. You can then use the CMake command
>+[`add_subdirectory()`](https://cmake.org/cmake/help/latest/command/add_subdirectory.html)
>+to include Abseil directly in your CMake project.
>+
>+4. Add the **absl::** target you wish to use to the
>+[`target_link_libraries()`](https://cmake.org/cmake/help/latest/command/target_link_libraries.html)
>+section of your executable or of your library.<br>
>+Here is a short CMakeLists.txt example of a project file using Abseil.
>+
>+```cmake
>+cmake_minimum_required(VERSION 2.8.12)
>+project(my_project)
>+
>+set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
>+
>+if(MSVC)
>+  # /wd4005  macro-redefinition
>+  # /wd4068  unknown pragma
>+  # /wd4244  conversion from 'type1' to 'type2'
>+  # /wd4267  conversion from 'size_t' to 'type2'
>+  # /wd4800  force value to bool 'true' or 'false' (performance warning)
>+  add_compile_options(/wd4005 /wd4068 /wd4244 /wd4267 /wd4800)
>+  add_definitions(/DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS)
>+endif()
>+
>+add_subdirectory(abseil-cpp)
>+
>+add_executable(my_exe source.cpp)
>+target_link_libraries(my_exe absl::base absl::synchronization absl::strings)
>+```
>+
>+### Running Abseil Tests with CMake
>+
>+Use the `-DABSL_RUN_TESTS=ON` flag to run Abseil tests.  Note that if the `-DBUILD_TESTING=OFF` flag is passed then Abseil tests will not be run.
>+
>+You will need to provide Abseil with a Googletest dependency.  There are two
>+options for how to do this:
>+
>+* Use `-DABSL_USE_GOOGLETEST_HEAD`.  This will automatically download the latest
>+Googletest source into the build directory at configure time.  Googletest will
>+then be compiled directly alongside Abseil's tests.
>+* Manually integrate Googletest with your build.  See
>+https://github.com/google/googletest/blob/master/googletest/README.md#using-cmake
>+for more information on using Googletest in a CMake project.
>+
>+For example, to run just the Abseil tests, you could use this script:
>+
>+```
>+cd path/to/abseil-cpp
>+mkdir build
>+cd build
>+cmake -DABSL_USE_GOOGLETEST_HEAD=ON -DABSL_RUN_TESTS=ON ..
>+make -j
>+ctest
>+```
>+
>+Currently, we only run our tests with CMake in a Linux environment, but we are
>+working on the rest of our supported platforms. See
>+https://github.com/abseil/abseil-cpp/projects/1 and
>+https://github.com/abseil/abseil-cpp/issues/109 for more information.
>+
>+### Available Abseil CMake Public Targets
>+
>+Here's a non-exhaustive list of Abseil CMake public targets:
>+
>+```cmake
>+absl::base
>+absl::algorithm
>+absl::container
>+absl::debugging
>+absl::memory
>+absl::meta
>+absl::numeric
>+absl::strings
>+absl::synchronization
>+absl::time
>+absl::utility
>+```
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..89a3386f7e258efc9739b3517566c591f02ade7e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CMakeLists.txt
>@@ -0,0 +1,98 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+# We require 3.0 for modern, target-based CMake.  We require 3.1 for the use of
>+# CXX_STANDARD in our targets.
>+cmake_minimum_required(VERSION 3.1)
>+project(absl)
>+
>+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake)
>+
>+include(GNUInstallDirs)
>+include(AbseilHelpers)
>+
>+
>+# config options
>+if (MSVC)
>+  # /wd4005  macro-redefinition
>+  # /wd4068  unknown pragma
>+  # /wd4244  conversion from 'type1' to 'type2'
>+  # /wd4267  conversion from 'size_t' to 'type2'
>+  # /wd4800  force value to bool 'true' or 'false' (performance warning)
>+  add_compile_options(/W3 /WX /wd4005 /wd4068 /wd4244 /wd4267 /wd4800)
>+  add_definitions(/DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_WARNINGS)
>+else()
>+  set(ABSL_STD_CXX_FLAG "-std=c++11" CACHE STRING "c++ std flag (default: c++11)")
>+endif()
>+
>+
>+
>+##
>+## Using absl targets
>+##
>+## all public absl targets are
>+## exported with the absl:: prefix
>+##
>+## e.g absl::base absl::synchronization absl::strings ....
>+##
>+## DO NOT rely on the internal targets outside of the prefix
>+
>+
>+# include current path
>+list(APPEND ABSL_COMMON_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR})
>+
>+# -std=X
>+set(CMAKE_CXX_FLAGS "${ABSL_STD_CXX_FLAG} ${CMAKE_CXX_FLAGS}")
>+
>+# -fexceptions
>+set(ABSL_EXCEPTIONS_FLAG "${CMAKE_CXX_EXCEPTIONS}")
>+
>+# find dependencies
>+## pthread
>+find_package(Threads REQUIRED)
>+
>+option(ABSL_USE_GOOGLETEST_HEAD
>+  "If ON, abseil will download HEAD from googletest at config time." OFF)
>+
>+option(ABSL_RUN_TESTS "If ON, Abseil tests will be run." OFF)
>+
>+if(${ABSL_RUN_TESTS})
>+  # enable CTest.  This will set BUILD_TESTING to ON unless otherwise specified
>+  # on the command line
>+  include(CTest)
>+  enable_testing()
>+endif()
>+
>+## check targets
>+if(BUILD_TESTING)
>+
>+  if(${ABSL_USE_GOOGLETEST_HEAD})
>+    include(CMake/DownloadGTest.cmake)
>+  endif()
>+
>+  check_target(gtest)
>+  check_target(gtest_main)
>+  check_target(gmock)
>+
>+  list(APPEND ABSL_TEST_COMMON_LIBRARIES
>+    gtest_main
>+    gtest
>+    gmock
>+    ${CMAKE_THREAD_LIBS_INIT}
>+  )
>+endif()
>+
>+add_subdirectory(absl)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CONTRIBUTING.md b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CONTRIBUTING.md
>new file mode 100644
>index 0000000000000000000000000000000000000000..40351ddcfaa14e0ed253031100a04f9d3323df61
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/CONTRIBUTING.md
>@@ -0,0 +1,91 @@
>+# How to Contribute to Abseil
>+
>+We'd love to accept your patches and contributions to this project. There are
>+just a few small guidelines you need to follow.
>+
>+NOTE: If you are new to GitHub, please start by reading [Pull Request
>+howto](https://help.github.com/articles/about-pull-requests/)
>+
>+## Contributor License Agreement
>+
>+Contributions to this project must be accompanied by a Contributor License
>+Agreement. You (or your employer) retain the copyright to your contribution,
>+this simply gives us permission to use and redistribute your contributions as
>+part of the project. Head over to <https://cla.developers.google.com/> to see
>+your current agreements on file or to sign a new one.
>+
>+You generally only need to submit a CLA once, so if you've already submitted one
>+(even if it was for a different project), you probably don't need to do it
>+again.
>+
>+## Coding Style
>+
>+To keep the source consistent, readable, diffable and easy to merge, we use a
>+fairly rigid coding style, as defined by the
>+[google-styleguide](https://github.com/google/styleguide) project. All patches
>+will be expected to conform to the style outlined
>+[here](https://google.github.io/styleguide/cppguide.html).
>+
>+## Guidelines for Pull Requests
>+
>+*   If you are a Googler, it is preferable to first create an internal CL and
>+    have it reviewed and submitted. The code propagation process will deliver
>+    the change to GitHub.
>+
>+*   Create **small PRs** that are narrowly focused on **addressing a single
>+    concern**. We often receive PRs that are trying to fix several things at a
>+    time, but if only one fix is considered acceptable, nothing gets merged and
>+    both author's & review's time is wasted. Create more PRs to address
>+    different concerns and everyone will be happy.
>+
>+*   For speculative changes, consider opening an [Abseil
>+    issue](https://github.com/abseil/abseil-cpp/issues) and discussing it first.
>+    If you are suggesting a behavioral or API change, consider starting with an
>+    [Abseil proposal template](ABSEIL_ISSUE_TEMPLATE.md).
>+
>+*   Provide a good **PR description** as a record of **what** change is being
>+    made and **why** it was made. Link to a GitHub issue if it exists.
>+
>+*   Don't fix code style and formatting unless you are already changing that
>+    line to address an issue. Formatting of modified lines may be done using
>+   `git clang-format`. PRs with irrelevant changes won't be merged. If
>+    you do want to fix formatting or style, do that in a separate PR.
>+
>+*   Unless your PR is trivial, you should expect there will be reviewer comments
>+    that you'll need to address before merging. We expect you to be reasonably
>+    responsive to those comments, otherwise the PR will be closed after 2-3
>+    weeks of inactivity.
>+
>+*   Maintain **clean commit history** and use **meaningful commit messages**.
>+    PRs with messy commit history are difficult to review and won't be merged.
>+    Use `rebase -i upstream/master` to curate your commit history and/or to
>+    bring in latest changes from master (but avoid rebasing in the middle of a
>+    code review).
>+
>+*   Keep your PR up to date with upstream/master (if there are merge conflicts,
>+    we can't really merge your change).
>+
>+*   **All tests need to be passing** before your change can be merged. We
>+    recommend you **run tests locally** (see below)
>+
>+*   Exceptions to the rules can be made if there's a compelling reason for doing
>+    so. That is - the rules are here to serve us, not the other way around, and
>+    the rules need to be serving their intended purpose to be valuable.
>+
>+*   All submissions, including submissions by project members, require review.
>+
>+## Running Tests
>+
>+Use "bazel test <>" functionality to run the unit tests.
>+
>+Prerequisites for building and running tests are listed in
>+[README.md](README.md)
>+
>+## Abseil Committers
>+
>+The current members of the Abseil engineering team are the only committers at
>+present.
>+
>+## Release Process
>+
>+Abseil lives at head, where latest-and-greatest code can be found.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LICENSE b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LICENSE
>new file mode 100644
>index 0000000000000000000000000000000000000000..fef7d967815b508d2be5bfe3ded6b62ad302e90c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LICENSE
>@@ -0,0 +1,204 @@
>+
>+                                 Apache License
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>+                        http://www.apache.org/licenses/
>+
>+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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>+   5. Submission of Contributions. Unless You explicitly state otherwise,
>+      any Contribution intentionally submitted for inclusion in the Work
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>+      the terms of any separate license agreement you may have executed
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>+   6. Trademarks. This License does not grant permission to use the trade
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>+   8. Limitation of Liability. In no event and under no legal theory,
>+      whether in tort (including negligence), contract, or otherwise,
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>+      negligent acts) or agreed to in writing, shall any Contributor be
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>+      on Your own behalf and on Your sole responsibility, not on behalf
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>+      of your accepting any such warranty or additional liability.
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>+   END OF TERMS AND CONDITIONS
>+
>+   APPENDIX: How to apply the Apache License to your work.
>+
>+      To apply the Apache License to your work, attach the following
>+      boilerplate notice, with the fields enclosed by brackets "[]"
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>+      file or class name and description of purpose be included on the
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>+       http://www.apache.org/licenses/LICENSE-2.0
>+
>+   Unless required by applicable law or agreed to in writing, software
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>+   See the License for the specific language governing permissions and
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>+   
>+   
>\ No newline at end of file
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LTS.md b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LTS.md
>new file mode 100644
>index 0000000000000000000000000000000000000000..385b4f062bf315b4184a7a0db098f3441e7013bf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/LTS.md
>@@ -0,0 +1,13 @@
>+# Long Term Support (LTS) Branches
>+
>+This repository contains periodic snapshots of the Abseil codebase that are
>+Long Term Support (LTS) branches. An LTS branch allows you to use a known
>+version of Abseil without interfering with other projects which may also, in
>+turn, use Abseil. (For more information about our releases, see the
>+[Abseil Release Management](https://abseil.io/about/releases) guide.)
>+
>+## LTS Branches
>+
>+The following lists LTS branches and the dates on which they have been released:
>+
>+* [LTS Branch June 20, 2018](https://github.com/abseil/abseil-cpp/tree/lts_2018_06_20/)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/OWNERS b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/OWNERS
>new file mode 100644
>index 0000000000000000000000000000000000000000..ceca4a8ba2cb16bd8d1d7833bedf78e6f09c93a1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/OWNERS
>@@ -0,0 +1,2 @@
>+mbonadei@chromium.org
>+phoglund@chromium.org
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.chromium b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.chromium
>new file mode 100644
>index 0000000000000000000000000000000000000000..91d6d381a47704450b599a009f049c707b1a9232
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.chromium
>@@ -0,0 +1,34 @@
>+Name: Abseil
>+Short Name: absl
>+URL: https://github.com/abseil/abseil-cpp
>+License: Apache 2.0
>+License File: LICENSE
>+Version: 0
>+Revision: bea85b52733022294eef108a2e42d77b616ddca2
>+Security Critical: yes
>+
>+Description:
>+This directory contains the source code of Abseil for C++. This can be used by
>+Chromium's dependencies, but shouldn't be used by Chromium itself.
>+See: https://goo.gl/TgnJb8.
>+
>+How to update Abseil:
>+
>+1. Download the code from the Abseil git repository (see URL).
>+
>+2. Copy the content of the Abseil git repo to //third_party/abseil-cpp.
>+
>+3. From //third_party/abseil-cpp/ launch ./rename_dynamic_annotations.sh.
>+   This script will rewrite dynamic_annotations macros and function inside
>+   Abseil in order to avoid ODR violations and macro clashing with Chromium
>+   (see: https://github.com/abseil/abseil-cpp/issues/122).
>+
>+Local Modifications:
>+
>+* absl/copts.bzl has been translated to //third_party/absl-cpp/BUILD.gn. Both
>+  files contain lists of compiler flags in order to reduce duplication.
>+
>+* All the BUILD.bazel files has been translated to BUILD.gn files.
>+
>+* Functions and macros in absl/base/dynamic_annotations.{h,cc} have been renamed
>+  to avoid ODR violations (see step 3).
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.md b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.md
>new file mode 100644
>index 0000000000000000000000000000000000000000..8eed5751bf54003681956cd7a4f5b107b15eafd1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/README.md
>@@ -0,0 +1,108 @@
>+# Abseil - C++ Common Libraries
>+
>+The repository contains the Abseil C++ library code. Abseil is an open-source
>+collection of C++ code (compliant to C++11) designed to augment the C++
>+standard library.
>+
>+## Table of Contents
>+
>+- [About Abseil](#about)
>+- [Quickstart](#quickstart)
>+- [Building Abseil](#build)
>+- [Codemap](#codemap)
>+- [License](#license)
>+- [Links](#links)
>+
>+<a name="about"></a>
>+## About Abseil
>+
>+Abseil is an open-source collection of C++ library code designed to augment
>+the C++ standard library. The Abseil library code is collected from Google's
>+own C++ code base, has been extensively tested and used in production, and
>+is the same code we depend on in our daily coding lives.
>+
>+In some cases, Abseil provides pieces missing from the C++ standard; in
>+others, Abseil provides alternatives to the standard for special needs
>+we've found through usage in the Google code base. We denote those cases
>+clearly within the library code we provide you.
>+
>+Abseil is not meant to be a competitor to the standard library; we've
>+just found that many of these utilities serve a purpose within our code
>+base, and we now want to provide those resources to the C++ community as
>+a whole.
>+
>+<a name="quickstart"></a>
>+## Quickstart
>+
>+If you want to just get started, make sure you at least run through the
>+[Abseil Quickstart](https://abseil.io/docs/cpp/quickstart). The Quickstart
>+contains information about setting up your development environment, downloading
>+the Abseil code, running tests, and getting a simple binary working.
>+
>+<a name="build"></a>
>+## Building Abseil
>+
>+[Bazel](http://bazel.build) is the official build system for Abseil,
>+which is supported on most major platforms (Linux, Windows, MacOS, for example)
>+and compilers. See the [quickstart](https://abseil.io/docs/cpp/quickstart) for
>+more information on building Abseil using the Bazel build system.
>+
>+<a name="cmake"></a>
>+If you require CMake support, please check the
>+[CMake build instructions](CMake/README.md).
>+
>+## Codemap
>+
>+Abseil contains the following C++ library components:
>+
>+* [`base`](absl/base/) Abseil Fundamentals
>+  <br /> The `base` library contains initialization code and other code which
>+  all other Abseil code depends on. Code within `base` may not depend on any
>+  other code (other than the C++ standard library).
>+* [`algorithm`](absl/algorithm/)
>+  <br /> The `algorithm` library contains additions to the C++ `<algorithm>`
>+  library and container-based versions of such algorithms.
>+* [`container`](absl/container/)
>+  <br /> The `container` library contains additional STL-style containers.
>+* [`debugging`](absl/debugging/)
>+  <br /> The `debugging` library contains code useful for enabling leak
>+  checks. Future updates will add stacktrace and symbolization utilities.
>+* [`memory`](absl/memory/)
>+  <br /> The `memory` library contains C++11-compatible versions of
>+  `std::make_unique()` and related memory management facilities.
>+* [`meta`](absl/meta/)
>+  <br /> The `meta` library contains C++11-compatible versions of type checks
>+  available within C++14 and C++17 versions of the C++ `<type_traits>` library.
>+* [`numeric`](absl/numeric/)
>+  <br /> The `numeric` library contains C++11-compatible 128-bit integers.
>+* [`strings`](absl/strings/)
>+  <br /> The `strings` library contains a variety of strings routines and
>+  utilities, including a C++11-compatible version of the C++17
>+  `std::string_view` type.
>+* [`synchronization`](absl/synchronization/)
>+  <br /> The `synchronization` library contains concurrency primitives (Abseil's
>+  `absl::Mutex` class, an alternative to `std::mutex`) and a variety of
>+  synchronization abstractions.
>+* [`time`](absl/time/)
>+  <br /> The `time` library contains abstractions for computing with absolute
>+  points in time, durations of time, and formatting and parsing time within
>+  time zones.
>+* [`types`](absl/types/)
>+  <br /> The `types` library contains non-container utility types, like a
>+  C++11-compatible version of the C++17 `std::optional` type.
>+
>+## License
>+
>+The Abseil C++ library is licensed under the terms of the Apache
>+license. See [LICENSE](LICENSE) for more information.
>+
>+## Links
>+
>+For more information about Abseil:
>+
>+* Consult our [Abseil Introduction](http://abseil.io/about/intro)
>+* Read [Why Adopt Abseil](http://abseil.io/about/philosophy) to understand our
>+  design philosophy.
>+* Peruse our
>+  [Abseil Compatibility Guarantees](http://abseil.io/about/compatibility) to
>+  understand both what we promise to you, and what we expect of you in return.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/WORKSPACE b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/WORKSPACE
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4a911978dc6825695a28413bdfa2355accda27d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/WORKSPACE
>@@ -0,0 +1,29 @@
>+workspace(name = "com_google_absl")
>+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
>+
>+# Bazel toolchains
>+http_archive(
>+  name = "bazel_toolchains",
>+  urls = [
>+    "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/287b64e0a211fb7c23b74695f8d5f5205b61f4eb.tar.gz",
>+    "https://github.com/bazelbuild/bazel-toolchains/archive/287b64e0a211fb7c23b74695f8d5f5205b61f4eb.tar.gz",
>+  ],
>+  strip_prefix = "bazel-toolchains-287b64e0a211fb7c23b74695f8d5f5205b61f4eb",
>+  sha256 = "aca8ac6afd7745027ee4a43032b51a725a61a75a30f02cc58681ee87e4dcdf4b",
>+)
>+
>+# GoogleTest/GoogleMock framework. Used by most unit-tests.
>+http_archive(
>+     name = "com_google_googletest",
>+     urls = ["https://github.com/google/googletest/archive/b4d4438df9479675a632b2f11125e57133822ece.zip"],  # 2018-07-16
>+     strip_prefix = "googletest-b4d4438df9479675a632b2f11125e57133822ece",
>+     sha256 = "5aaa5d566517cae711e2a3505ea9a6438be1b37fcaae0ebcb96ccba9aa56f23a",
>+)
>+
>+# Google benchmark.
>+http_archive(
>+    name = "com_github_google_benchmark",
>+    urls = ["https://github.com/google/benchmark/archive/16703ff83c1ae6d53e5155df3bb3ab0bc96083be.zip"],
>+    strip_prefix = "benchmark-16703ff83c1ae6d53e5155df3bb3ab0bc96083be",
>+    sha256 = "59f918c8ccd4d74b6ac43484467b500f1d64b40cc1010daa055375b322a43ba3",
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..edd0274c5d837d7dfb717d4e942f59f7e48ed6a5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/BUILD.bazel
>@@ -0,0 +1,51 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+load(":compiler_config_setting.bzl", "create_llvm_config")
>+
>+create_llvm_config(
>+    name = "llvm_compiler",
>+    visibility = [":__subpackages__"],
>+)
>+
>+# following configs are based on mapping defined in: https://git.io/v5Ijz
>+config_setting(
>+    name = "ios",
>+    values = {
>+        "cpu": "darwin",
>+    },
>+    visibility = [":__subpackages__"],
>+)
>+
>+config_setting(
>+    name = "windows",
>+    values = {
>+        "cpu": "x64_windows",
>+    },
>+    visibility = [":__subpackages__"],
>+)
>+
>+config_setting(
>+    name = "ppc",
>+    values = {
>+        "cpu": "ppc",
>+    },
>+    visibility = [":__subpackages__"],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..689f64e258baac99201cfa7894dbcb80542408df
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/CMakeLists.txt
>@@ -0,0 +1,30 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+
>+
>+add_subdirectory(base)
>+add_subdirectory(algorithm)
>+add_subdirectory(container)
>+add_subdirectory(debugging)
>+add_subdirectory(memory)
>+add_subdirectory(meta)
>+add_subdirectory(numeric)
>+add_subdirectory(strings)
>+add_subdirectory(synchronization)
>+add_subdirectory(time)
>+add_subdirectory(types)
>+add_subdirectory(utility)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..d04dc71206e8d969433f8523beb611f79cb64225
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.bazel
>@@ -0,0 +1,81 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "algorithm",
>+    hdrs = ["algorithm.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+)
>+
>+cc_test(
>+    name = "algorithm_test",
>+    size = "small",
>+    srcs = ["algorithm_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":algorithm",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "algorithm_benchmark",
>+    srcs = ["equal_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":algorithm",
>+        "//absl/base:core_headers",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "container",
>+    hdrs = [
>+        "container.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":algorithm",
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+    ],
>+)
>+
>+cc_test(
>+    name = "container_test",
>+    srcs = ["container_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":container",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "//absl/types:span",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..37ec665764d49cbb2d1a8bbc5619e059b7c52da3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/BUILD.gn
>@@ -0,0 +1,44 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("algorithm") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "algorithm.h",
>+  ]
>+}
>+
>+source_set("container") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "container.h",
>+  ]
>+  deps = [
>+    ":algorithm",
>+    "../base:core_headers",
>+    "../meta:type_traits",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..fdf45c55ed6313e83bb19bfa83a5b473e95ef9b7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/CMakeLists.txt
>@@ -0,0 +1,63 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND ALGORITHM_PUBLIC_HEADERS
>+  "algorithm.h"
>+  "container.h"
>+)
>+
>+
>+#
>+## TESTS
>+#
>+
>+# test algorithm_test
>+list(APPEND ALGORITHM_TEST_SRC
>+  "algorithm_test.cc"
>+  ${ALGORITHM_PUBLIC_HEADERS}
>+  ${ALGORITHM_INTERNAL_HEADERS}
>+)
>+
>+absl_header_library(
>+  TARGET
>+    absl_algorithm
>+  EXPORT_NAME
>+    algorithm
>+)
>+
>+absl_test(
>+  TARGET
>+    algorithm_test
>+  SOURCES
>+    ${ALGORITHM_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::algorithm
>+)
>+
>+
>+
>+
>+# test container_test
>+set(CONTAINER_TEST_SRC "container_test.cc")
>+
>+absl_test(
>+  TARGET
>+    container_test
>+  SOURCES
>+    ${CONTAINER_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::algorithm
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3d6586439fe3bc5111e67b0582511d1c6734fd66
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm.h
>@@ -0,0 +1,150 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: algorithm.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains Google extensions to the standard <algorithm> C++
>+// header.
>+
>+#ifndef ABSL_ALGORITHM_ALGORITHM_H_
>+#define ABSL_ALGORITHM_ALGORITHM_H_
>+
>+#include <algorithm>
>+#include <iterator>
>+#include <type_traits>
>+
>+namespace absl {
>+
>+namespace algorithm_internal {
>+
>+// Performs comparisons with operator==, similar to C++14's `std::equal_to<>`.
>+struct EqualTo {
>+  template <typename T, typename U>
>+  bool operator()(const T& a, const U& b) const {
>+    return a == b;
>+  }
>+};
>+
>+template <typename InputIter1, typename InputIter2, typename Pred>
>+bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2,
>+               InputIter2 last2, Pred pred, std::input_iterator_tag,
>+               std::input_iterator_tag) {
>+  while (true) {
>+    if (first1 == last1) return first2 == last2;
>+    if (first2 == last2) return false;
>+    if (!pred(*first1, *first2)) return false;
>+    ++first1;
>+    ++first2;
>+  }
>+}
>+
>+template <typename InputIter1, typename InputIter2, typename Pred>
>+bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2,
>+               InputIter2 last2, Pred&& pred, std::random_access_iterator_tag,
>+               std::random_access_iterator_tag) {
>+  return (last1 - first1 == last2 - first2) &&
>+         std::equal(first1, last1, first2, std::forward<Pred>(pred));
>+}
>+
>+// When we are using our own internal predicate that just applies operator==, we
>+// forward to the non-predicate form of std::equal. This enables an optimization
>+// in libstdc++ that can result in std::memcmp being used for integer types.
>+template <typename InputIter1, typename InputIter2>
>+bool EqualImpl(InputIter1 first1, InputIter1 last1, InputIter2 first2,
>+               InputIter2 last2, algorithm_internal::EqualTo /* unused */,
>+               std::random_access_iterator_tag,
>+               std::random_access_iterator_tag) {
>+  return (last1 - first1 == last2 - first2) &&
>+         std::equal(first1, last1, first2);
>+}
>+
>+template <typename It>
>+It RotateImpl(It first, It middle, It last, std::true_type) {
>+  return std::rotate(first, middle, last);
>+}
>+
>+template <typename It>
>+It RotateImpl(It first, It middle, It last, std::false_type) {
>+  std::rotate(first, middle, last);
>+  return std::next(first, std::distance(middle, last));
>+}
>+
>+}  // namespace algorithm_internal
>+
>+// Compares the equality of two ranges specified by pairs of iterators, using
>+// the given predicate, returning true iff for each corresponding iterator i1
>+// and i2 in the first and second range respectively, pred(*i1, *i2) == true
>+//
>+// This comparison takes at most min(`last1` - `first1`, `last2` - `first2`)
>+// invocations of the predicate. Additionally, if InputIter1 and InputIter2 are
>+// both random-access iterators, and `last1` - `first1` != `last2` - `first2`,
>+// then the predicate is never invoked and the function returns false.
>+//
>+// This is a C++11-compatible implementation of C++14 `std::equal`.  See
>+// http://en.cppreference.com/w/cpp/algorithm/equal for more information.
>+template <typename InputIter1, typename InputIter2, typename Pred>
>+bool equal(InputIter1 first1, InputIter1 last1, InputIter2 first2,
>+           InputIter2 last2, Pred&& pred) {
>+  return algorithm_internal::EqualImpl(
>+      first1, last1, first2, last2, std::forward<Pred>(pred),
>+      typename std::iterator_traits<InputIter1>::iterator_category{},
>+      typename std::iterator_traits<InputIter2>::iterator_category{});
>+}
>+
>+// Performs comparison of two ranges specified by pairs of iterators using
>+// operator==.
>+template <typename InputIter1, typename InputIter2>
>+bool equal(InputIter1 first1, InputIter1 last1, InputIter2 first2,
>+           InputIter2 last2) {
>+  return absl::equal(first1, last1, first2, last2,
>+                     algorithm_internal::EqualTo{});
>+}
>+
>+// Performs a linear search for `value` using the iterator `first` up to
>+// but not including `last`, returning true if [`first`, `last`) contains an
>+// element equal to `value`.
>+//
>+// A linear search is of O(n) complexity which is guaranteed to make at most
>+// n = (`last` - `first`) comparisons. A linear search over short containers
>+// may be faster than a binary search, even when the container is sorted.
>+template <typename InputIterator, typename EqualityComparable>
>+bool linear_search(InputIterator first, InputIterator last,
>+                   const EqualityComparable& value) {
>+  return std::find(first, last, value) != last;
>+}
>+
>+// Performs a left rotation on a range of elements (`first`, `last`) such that
>+// `middle` is now the first element. `rotate()` returns an iterator pointing to
>+// the first element before rotation. This function is exactly the same as
>+// `std::rotate`, but fixes a bug in gcc
>+// <= 4.9 where `std::rotate` returns `void` instead of an iterator.
>+//
>+// The complexity of this algorithm is the same as that of `std::rotate`, but if
>+// `ForwardIterator` is not a random-access iterator, then `absl::rotate`
>+// performs an additional pass over the range to construct the return value.
>+
>+template <typename ForwardIterator>
>+ForwardIterator rotate(ForwardIterator first, ForwardIterator middle,
>+                       ForwardIterator last) {
>+  return algorithm_internal::RotateImpl(
>+      first, middle, last,
>+      std::is_same<decltype(std::rotate(first, middle, last)),
>+                   ForwardIterator>());
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_ALGORITHM_ALGORITHM_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4322bc4f202e31e8526b21e7d26994de630ea73
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/algorithm_test.cc
>@@ -0,0 +1,182 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/algorithm/algorithm.h"
>+
>+#include <algorithm>
>+#include <list>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+TEST(EqualTest, DefaultComparisonRandomAccess) {
>+  std::vector<int> v1{1, 2, 3};
>+  std::vector<int> v2 = v1;
>+  std::vector<int> v3 = {1, 2};
>+  std::vector<int> v4 = {1, 2, 4};
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end()));
>+}
>+
>+TEST(EqualTest, DefaultComparison) {
>+  std::list<int> lst1{1, 2, 3};
>+  std::list<int> lst2 = lst1;
>+  std::list<int> lst3{1, 2};
>+  std::list<int> lst4{1, 2, 4};
>+
>+  EXPECT_TRUE(absl::equal(lst1.begin(), lst1.end(), lst2.begin(), lst2.end()));
>+  EXPECT_FALSE(absl::equal(lst1.begin(), lst1.end(), lst3.begin(), lst3.end()));
>+  EXPECT_FALSE(absl::equal(lst1.begin(), lst1.end(), lst4.begin(), lst4.end()));
>+}
>+
>+TEST(EqualTest, EmptyRange) {
>+  std::vector<int> v1{1, 2, 3};
>+  std::vector<int> empty1;
>+  std::vector<int> empty2;
>+
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), empty1.begin(), empty1.end()));
>+  EXPECT_FALSE(absl::equal(empty1.begin(), empty1.end(), v1.begin(), v1.end()));
>+  EXPECT_TRUE(
>+      absl::equal(empty1.begin(), empty1.end(), empty2.begin(), empty2.end()));
>+}
>+
>+TEST(EqualTest, MixedIterTypes) {
>+  std::vector<int> v1{1, 2, 3};
>+  std::list<int> lst1{v1.begin(), v1.end()};
>+  std::list<int> lst2{1, 2, 4};
>+  std::list<int> lst3{1, 2};
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), lst1.begin(), lst1.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), lst2.begin(), lst2.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), lst3.begin(), lst3.end()));
>+}
>+
>+TEST(EqualTest, MixedValueTypes) {
>+  std::vector<int> v1{1, 2, 3};
>+  std::vector<char> v2{1, 2, 3};
>+  std::vector<char> v3{1, 2};
>+  std::vector<char> v4{1, 2, 4};
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end()));
>+}
>+
>+TEST(EqualTest, WeirdIterators) {
>+  std::vector<bool> v1{true, false};
>+  std::vector<bool> v2 = v1;
>+  std::vector<bool> v3{true};
>+  std::vector<bool> v4{true, true, true};
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end()));
>+}
>+
>+TEST(EqualTest, CustomComparison) {
>+  int n[] = {1, 2, 3, 4};
>+  std::vector<int*> v1{&n[0], &n[1], &n[2]};
>+  std::vector<int*> v2 = v1;
>+  std::vector<int*> v3{&n[0], &n[1], &n[3]};
>+  std::vector<int*> v4{&n[0], &n[1]};
>+
>+  auto eq = [](int* a, int* b) { return *a == *b; };
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(), eq));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end(), eq));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v4.begin(), v4.end(), eq));
>+}
>+
>+TEST(EqualTest, MoveOnlyPredicate) {
>+  std::vector<int> v1{1, 2, 3};
>+  std::vector<int> v2{4, 5, 6};
>+
>+  // move-only equality predicate
>+  struct Eq {
>+    Eq() = default;
>+    Eq(Eq &&) = default;
>+    Eq(const Eq &) = delete;
>+    Eq &operator=(const Eq &) = delete;
>+    bool operator()(const int a, const int b) const { return a == b; }
>+  };
>+
>+  EXPECT_TRUE(absl::equal(v1.begin(), v1.end(), v1.begin(), v1.end(), Eq()));
>+  EXPECT_FALSE(absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(), Eq()));
>+}
>+
>+struct CountingTrivialPred {
>+  int* count;
>+  bool operator()(int, int) const {
>+    ++*count;
>+    return true;
>+  }
>+};
>+
>+TEST(EqualTest, RandomAccessComplexity) {
>+  std::vector<int> v1{1, 1, 3};
>+  std::vector<int> v2 = v1;
>+  std::vector<int> v3{1, 2};
>+
>+  do {
>+    int count = 0;
>+    absl::equal(v1.begin(), v1.end(), v2.begin(), v2.end(),
>+                CountingTrivialPred{&count});
>+    EXPECT_LE(count, 3);
>+  } while (std::next_permutation(v2.begin(), v2.end()));
>+
>+  int count = 0;
>+  absl::equal(v1.begin(), v1.end(), v3.begin(), v3.end(),
>+              CountingTrivialPred{&count});
>+  EXPECT_EQ(count, 0);
>+}
>+
>+class LinearSearchTest : public testing::Test {
>+ protected:
>+  LinearSearchTest() : container_{1, 2, 3} {}
>+
>+  static bool Is3(int n) { return n == 3; }
>+  static bool Is4(int n) { return n == 4; }
>+
>+  std::vector<int> container_;
>+};
>+
>+TEST_F(LinearSearchTest, linear_search) {
>+  EXPECT_TRUE(absl::linear_search(container_.begin(), container_.end(), 3));
>+  EXPECT_FALSE(absl::linear_search(container_.begin(), container_.end(), 4));
>+}
>+
>+TEST_F(LinearSearchTest, linear_searchConst) {
>+  const std::vector<int> *const const_container = &container_;
>+  EXPECT_TRUE(
>+      absl::linear_search(const_container->begin(), const_container->end(), 3));
>+  EXPECT_FALSE(
>+      absl::linear_search(const_container->begin(), const_container->end(), 4));
>+}
>+
>+TEST(RotateTest, Rotate) {
>+  std::vector<int> v{0, 1, 2, 3, 4};
>+  EXPECT_EQ(*absl::rotate(v.begin(), v.begin() + 2, v.end()), 0);
>+  EXPECT_THAT(v, testing::ElementsAreArray({2, 3, 4, 0, 1}));
>+
>+  std::list<int> l{0, 1, 2, 3, 4};
>+  EXPECT_EQ(*absl::rotate(l.begin(), std::next(l.begin(), 3), l.end()), 0);
>+  EXPECT_THAT(l, testing::ElementsAreArray({3, 4, 0, 1, 2}));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..6af8c09799e56f223ad3eeca246d83ab07063a19
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container.h
>@@ -0,0 +1,1642 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: container.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file provides Container-based versions of algorithmic functions
>+// within the C++ standard library. The following standard library sets of
>+// functions are covered within this file:
>+//
>+//   * Algorithmic <iterator> functions
>+//   * Algorithmic <numeric> functions
>+//   * <algorithm> functions
>+//
>+// The standard library functions operate on iterator ranges; the functions
>+// within this API operate on containers, though many return iterator ranges.
>+//
>+// All functions within this API are named with a `c_` prefix. Calls such as
>+// `absl::c_xx(container, ...) are equivalent to std:: functions such as
>+// `std::xx(std::begin(cont), std::end(cont), ...)`. Functions that act on
>+// iterators but not conceptually on iterator ranges (e.g. `std::iter_swap`)
>+// have no equivalent here.
>+//
>+// For template parameter and variable naming, `C` indicates the container type
>+// to which the function is applied, `Pred` indicates the predicate object type
>+// to be used by the function and `T` indicates the applicable element type.
>+//
>+
>+#ifndef ABSL_ALGORITHM_CONTAINER_H_
>+#define ABSL_ALGORITHM_CONTAINER_H_
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <iterator>
>+#include <numeric>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "absl/algorithm/algorithm.h"
>+#include "absl/base/macros.h"
>+#include "absl/meta/type_traits.h"
>+
>+namespace absl {
>+
>+namespace container_algorithm_internal {
>+
>+// NOTE: it is important to defer to ADL lookup for building with C++ modules,
>+// especially for headers like <valarray> which are not visible from this file
>+// but specialize std::begin and std::end.
>+using std::begin;
>+using std::end;
>+
>+// The type of the iterator given by begin(c) (possibly std::begin(c)).
>+// ContainerIter<const vector<T>> gives vector<T>::const_iterator,
>+// while ContainerIter<vector<T>> gives vector<T>::iterator.
>+template <typename C>
>+using ContainerIter = decltype(begin(std::declval<C&>()));
>+
>+// An MSVC bug involving template parameter substitution requires us to use
>+// decltype() here instead of just std::pair.
>+template <typename C1, typename C2>
>+using ContainerIterPairType =
>+    decltype(std::make_pair(ContainerIter<C1>(), ContainerIter<C2>()));
>+
>+template <typename C>
>+using ContainerDifferenceType =
>+    decltype(std::distance(std::declval<ContainerIter<C>>(),
>+                           std::declval<ContainerIter<C>>()));
>+
>+template <typename C>
>+using ContainerPointerType =
>+    typename std::iterator_traits<ContainerIter<C>>::pointer;
>+
>+// container_algorithm_internal::c_begin and
>+// container_algorithm_internal::c_end are abbreviations for proper ADL
>+// lookup of std::begin and std::end, i.e.
>+//   using std::begin;
>+//   using std::end;
>+//   std::foo(begin(c), end(c);
>+// becomes
>+//   std::foo(container_algorithm_internal::begin(c),
>+//   container_algorithm_internal::end(c));
>+// These are meant for internal use only.
>+
>+template <typename C>
>+ContainerIter<C> c_begin(C& c) { return begin(c); }
>+
>+template <typename C>
>+ContainerIter<C> c_end(C& c) { return end(c); }
>+
>+}  // namespace container_algorithm_internal
>+
>+// PUBLIC API
>+
>+//------------------------------------------------------------------------------
>+// Abseil algorithm.h functions
>+//------------------------------------------------------------------------------
>+
>+// c_linear_search()
>+//
>+// Container-based version of absl::linear_search() for performing a linear
>+// search within a container.
>+template <typename C, typename EqualityComparable>
>+bool c_linear_search(const C& c, EqualityComparable&& value) {
>+  return linear_search(container_algorithm_internal::c_begin(c),
>+                       container_algorithm_internal::c_end(c),
>+                       std::forward<EqualityComparable>(value));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <iterator> algorithms
>+//------------------------------------------------------------------------------
>+
>+// c_distance()
>+//
>+// Container-based version of the <iterator> `std::distance()` function to
>+// return the number of elements within a container.
>+template <typename C>
>+container_algorithm_internal::ContainerDifferenceType<const C> c_distance(
>+    const C& c) {
>+  return std::distance(container_algorithm_internal::c_begin(c),
>+                       container_algorithm_internal::c_end(c));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Non-modifying sequence operations
>+//------------------------------------------------------------------------------
>+
>+// c_all_of()
>+//
>+// Container-based version of the <algorithm> `std::all_of()` function to
>+// test a condition on all elements within a container.
>+template <typename C, typename Pred>
>+bool c_all_of(const C& c, Pred&& pred) {
>+  return std::all_of(container_algorithm_internal::c_begin(c),
>+                     container_algorithm_internal::c_end(c),
>+                     std::forward<Pred>(pred));
>+}
>+
>+// c_any_of()
>+//
>+// Container-based version of the <algorithm> `std::any_of()` function to
>+// test if any element in a container fulfills a condition.
>+template <typename C, typename Pred>
>+bool c_any_of(const C& c, Pred&& pred) {
>+  return std::any_of(container_algorithm_internal::c_begin(c),
>+                     container_algorithm_internal::c_end(c),
>+                     std::forward<Pred>(pred));
>+}
>+
>+// c_none_of()
>+//
>+// Container-based version of the <algorithm> `std::none_of()` function to
>+// test if no elements in a container fulfil a condition.
>+template <typename C, typename Pred>
>+bool c_none_of(const C& c, Pred&& pred) {
>+  return std::none_of(container_algorithm_internal::c_begin(c),
>+                      container_algorithm_internal::c_end(c),
>+                      std::forward<Pred>(pred));
>+}
>+
>+// c_for_each()
>+//
>+// Container-based version of the <algorithm> `std::for_each()` function to
>+// apply a function to a container's elements.
>+template <typename C, typename Function>
>+decay_t<Function> c_for_each(C&& c, Function&& f) {
>+  return std::for_each(container_algorithm_internal::c_begin(c),
>+                       container_algorithm_internal::c_end(c),
>+                       std::forward<Function>(f));
>+}
>+
>+// c_find()
>+//
>+// Container-based version of the <algorithm> `std::find()` function to find
>+// the first element containing the passed value within a container value.
>+template <typename C, typename T>
>+container_algorithm_internal::ContainerIter<C> c_find(C& c, T&& value) {
>+  return std::find(container_algorithm_internal::c_begin(c),
>+                   container_algorithm_internal::c_end(c),
>+                   std::forward<T>(value));
>+}
>+
>+// c_find_if()
>+//
>+// Container-based version of the <algorithm> `std::find_if()` function to find
>+// the first element in a container matching the given condition.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerIter<C> c_find_if(C& c, Pred&& pred) {
>+  return std::find_if(container_algorithm_internal::c_begin(c),
>+                      container_algorithm_internal::c_end(c),
>+                      std::forward<Pred>(pred));
>+}
>+
>+// c_find_if_not()
>+//
>+// Container-based version of the <algorithm> `std::find_if_not()` function to
>+// find the first element in a container not matching the given condition.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerIter<C> c_find_if_not(C& c,
>+                                                             Pred&& pred) {
>+  return std::find_if_not(container_algorithm_internal::c_begin(c),
>+                          container_algorithm_internal::c_end(c),
>+                          std::forward<Pred>(pred));
>+}
>+
>+// c_find_end()
>+//
>+// Container-based version of the <algorithm> `std::find_end()` function to
>+// find the last subsequence within a container.
>+template <typename Sequence1, typename Sequence2>
>+container_algorithm_internal::ContainerIter<Sequence1> c_find_end(
>+    Sequence1& sequence, Sequence2& subsequence) {
>+  return std::find_end(container_algorithm_internal::c_begin(sequence),
>+                       container_algorithm_internal::c_end(sequence),
>+                       container_algorithm_internal::c_begin(subsequence),
>+                       container_algorithm_internal::c_end(subsequence));
>+}
>+
>+// Overload of c_find_end() for using a predicate evaluation other than `==` as
>+// the function's test condition.
>+template <typename Sequence1, typename Sequence2, typename BinaryPredicate>
>+container_algorithm_internal::ContainerIter<Sequence1> c_find_end(
>+    Sequence1& sequence, Sequence2& subsequence, BinaryPredicate&& pred) {
>+  return std::find_end(container_algorithm_internal::c_begin(sequence),
>+                       container_algorithm_internal::c_end(sequence),
>+                       container_algorithm_internal::c_begin(subsequence),
>+                       container_algorithm_internal::c_end(subsequence),
>+                       std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_find_first_of()
>+//
>+// Container-based version of the <algorithm> `std::find_first_of()` function to
>+// find the first elements in an ordered set within a container.
>+template <typename C1, typename C2>
>+container_algorithm_internal::ContainerIter<C1> c_find_first_of(C1& container,
>+                                                                C2& options) {
>+  return std::find_first_of(container_algorithm_internal::c_begin(container),
>+                            container_algorithm_internal::c_end(container),
>+                            container_algorithm_internal::c_begin(options),
>+                            container_algorithm_internal::c_end(options));
>+}
>+
>+// Overload of c_find_first_of() for using a predicate evaluation other than
>+// `==` as the function's test condition.
>+template <typename C1, typename C2, typename BinaryPredicate>
>+container_algorithm_internal::ContainerIter<C1> c_find_first_of(
>+    C1& container, C2& options, BinaryPredicate&& pred) {
>+  return std::find_first_of(container_algorithm_internal::c_begin(container),
>+                            container_algorithm_internal::c_end(container),
>+                            container_algorithm_internal::c_begin(options),
>+                            container_algorithm_internal::c_end(options),
>+                            std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_adjacent_find()
>+//
>+// Container-based version of the <algorithm> `std::adjacent_find()` function to
>+// find equal adjacent elements within a container.
>+template <typename Sequence>
>+container_algorithm_internal::ContainerIter<Sequence> c_adjacent_find(
>+    Sequence& sequence) {
>+  return std::adjacent_find(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_adjacent_find() for using a predicate evaluation other than
>+// `==` as the function's test condition.
>+template <typename Sequence, typename BinaryPredicate>
>+container_algorithm_internal::ContainerIter<Sequence> c_adjacent_find(
>+    Sequence& sequence, BinaryPredicate&& pred) {
>+  return std::adjacent_find(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence),
>+                            std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_count()
>+//
>+// Container-based version of the <algorithm> `std::count()` function to count
>+// values that match within a container.
>+template <typename C, typename T>
>+container_algorithm_internal::ContainerDifferenceType<const C> c_count(
>+    const C& c, T&& value) {
>+  return std::count(container_algorithm_internal::c_begin(c),
>+                    container_algorithm_internal::c_end(c),
>+                    std::forward<T>(value));
>+}
>+
>+// c_count_if()
>+//
>+// Container-based version of the <algorithm> `std::count_if()` function to
>+// count values matching a condition within a container.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerDifferenceType<const C> c_count_if(
>+    const C& c, Pred&& pred) {
>+  return std::count_if(container_algorithm_internal::c_begin(c),
>+                       container_algorithm_internal::c_end(c),
>+                       std::forward<Pred>(pred));
>+}
>+
>+// c_mismatch()
>+//
>+// Container-based version of the <algorithm> `std::mismatch()` function to
>+// return the first element where two ordered containers differ.
>+template <typename C1, typename C2>
>+container_algorithm_internal::ContainerIterPairType<C1, C2>
>+c_mismatch(C1& c1, C2& c2) {
>+  return std::mismatch(container_algorithm_internal::c_begin(c1),
>+                       container_algorithm_internal::c_end(c1),
>+                       container_algorithm_internal::c_begin(c2));
>+}
>+
>+// Overload of c_mismatch() for using a predicate evaluation other than `==` as
>+// the function's test condition.
>+template <typename C1, typename C2, typename BinaryPredicate>
>+container_algorithm_internal::ContainerIterPairType<C1, C2>
>+c_mismatch(C1& c1, C2& c2, BinaryPredicate&& pred) {
>+  return std::mismatch(container_algorithm_internal::c_begin(c1),
>+                       container_algorithm_internal::c_end(c1),
>+                       container_algorithm_internal::c_begin(c2),
>+                       std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_equal()
>+//
>+// Container-based version of the <algorithm> `std::equal()` function to
>+// test whether two containers are equal.
>+//
>+// NOTE: the semantics of c_equal() are slightly different than those of
>+// equal(): while the latter iterates over the second container only up to the
>+// size of the first container, c_equal() also checks whether the container
>+// sizes are equal.  This better matches expectations about c_equal() based on
>+// its signature.
>+//
>+// Example:
>+//   vector v1 = <1, 2, 3>;
>+//   vector v2 = <1, 2, 3, 4>;
>+//   equal(std::begin(v1), std::end(v1), std::begin(v2)) returns true
>+//   c_equal(v1, v2) returns false
>+
>+template <typename C1, typename C2>
>+bool c_equal(const C1& c1, const C2& c2) {
>+  return ((c1.size() == c2.size()) &&
>+          std::equal(container_algorithm_internal::c_begin(c1),
>+                     container_algorithm_internal::c_end(c1),
>+                     container_algorithm_internal::c_begin(c2)));
>+}
>+
>+// Overload of c_equal() for using a predicate evaluation other than `==` as
>+// the function's test condition.
>+template <typename C1, typename C2, typename BinaryPredicate>
>+bool c_equal(const C1& c1, const C2& c2, BinaryPredicate&& pred) {
>+  return ((c1.size() == c2.size()) &&
>+          std::equal(container_algorithm_internal::c_begin(c1),
>+                     container_algorithm_internal::c_end(c1),
>+                     container_algorithm_internal::c_begin(c2),
>+                     std::forward<BinaryPredicate>(pred)));
>+}
>+
>+// c_is_permutation()
>+//
>+// Container-based version of the <algorithm> `std::is_permutation()` function
>+// to test whether a container is a permutation of another.
>+template <typename C1, typename C2>
>+bool c_is_permutation(const C1& c1, const C2& c2) {
>+  using std::begin;
>+  using std::end;
>+  return c1.size() == c2.size() &&
>+         std::is_permutation(begin(c1), end(c1), begin(c2));
>+}
>+
>+// Overload of c_is_permutation() for using a predicate evaluation other than
>+// `==` as the function's test condition.
>+template <typename C1, typename C2, typename BinaryPredicate>
>+bool c_is_permutation(const C1& c1, const C2& c2, BinaryPredicate&& pred) {
>+  using std::begin;
>+  using std::end;
>+  return c1.size() == c2.size() &&
>+         std::is_permutation(begin(c1), end(c1), begin(c2),
>+                             std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_search()
>+//
>+// Container-based version of the <algorithm> `std::search()` function to search
>+// a container for a subsequence.
>+template <typename Sequence1, typename Sequence2>
>+container_algorithm_internal::ContainerIter<Sequence1> c_search(
>+    Sequence1& sequence, Sequence2& subsequence) {
>+  return std::search(container_algorithm_internal::c_begin(sequence),
>+                     container_algorithm_internal::c_end(sequence),
>+                     container_algorithm_internal::c_begin(subsequence),
>+                     container_algorithm_internal::c_end(subsequence));
>+}
>+
>+// Overload of c_search() for using a predicate evaluation other than
>+// `==` as the function's test condition.
>+template <typename Sequence1, typename Sequence2, typename BinaryPredicate>
>+container_algorithm_internal::ContainerIter<Sequence1> c_search(
>+    Sequence1& sequence, Sequence2& subsequence, BinaryPredicate&& pred) {
>+  return std::search(container_algorithm_internal::c_begin(sequence),
>+                     container_algorithm_internal::c_end(sequence),
>+                     container_algorithm_internal::c_begin(subsequence),
>+                     container_algorithm_internal::c_end(subsequence),
>+                     std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_search_n()
>+//
>+// Container-based version of the <algorithm> `std::search_n()` function to
>+// search a container for the first sequence of N elements.
>+template <typename Sequence, typename Size, typename T>
>+container_algorithm_internal::ContainerIter<Sequence> c_search_n(
>+    Sequence& sequence, Size count, T&& value) {
>+  return std::search_n(container_algorithm_internal::c_begin(sequence),
>+                       container_algorithm_internal::c_end(sequence), count,
>+                       std::forward<T>(value));
>+}
>+
>+// Overload of c_search_n() for using a predicate evaluation other than
>+// `==` as the function's test condition.
>+template <typename Sequence, typename Size, typename T,
>+          typename BinaryPredicate>
>+container_algorithm_internal::ContainerIter<Sequence> c_search_n(
>+    Sequence& sequence, Size count, T&& value, BinaryPredicate&& pred) {
>+  return std::search_n(container_algorithm_internal::c_begin(sequence),
>+                       container_algorithm_internal::c_end(sequence), count,
>+                       std::forward<T>(value),
>+                       std::forward<BinaryPredicate>(pred));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Modifying sequence operations
>+//------------------------------------------------------------------------------
>+
>+// c_copy()
>+//
>+// Container-based version of the <algorithm> `std::copy()` function to copy a
>+// container's elements into an iterator.
>+template <typename InputSequence, typename OutputIterator>
>+OutputIterator c_copy(const InputSequence& input, OutputIterator output) {
>+  return std::copy(container_algorithm_internal::c_begin(input),
>+                   container_algorithm_internal::c_end(input), output);
>+}
>+
>+// c_copy_n()
>+//
>+// Container-based version of the <algorithm> `std::copy_n()` function to copy a
>+// container's first N elements into an iterator.
>+template <typename C, typename Size, typename OutputIterator>
>+OutputIterator c_copy_n(const C& input, Size n, OutputIterator output) {
>+  return std::copy_n(container_algorithm_internal::c_begin(input), n, output);
>+}
>+
>+// c_copy_if()
>+//
>+// Container-based version of the <algorithm> `std::copy_if()` function to copy
>+// a container's elements satisfying some condition into an iterator.
>+template <typename InputSequence, typename OutputIterator, typename Pred>
>+OutputIterator c_copy_if(const InputSequence& input, OutputIterator output,
>+                         Pred&& pred) {
>+  return std::copy_if(container_algorithm_internal::c_begin(input),
>+                      container_algorithm_internal::c_end(input), output,
>+                      std::forward<Pred>(pred));
>+}
>+
>+// c_copy_backward()
>+//
>+// Container-based version of the <algorithm> `std::copy_backward()` function to
>+// copy a container's elements in reverse order into an iterator.
>+template <typename C, typename BidirectionalIterator>
>+BidirectionalIterator c_copy_backward(const C& src,
>+                                      BidirectionalIterator dest) {
>+  return std::copy_backward(container_algorithm_internal::c_begin(src),
>+                            container_algorithm_internal::c_end(src), dest);
>+}
>+
>+// c_move()
>+//
>+// Container-based version of the <algorithm> `std::move()` function to move
>+// a container's elements into an iterator.
>+template <typename C, typename OutputIterator>
>+OutputIterator c_move(C& src, OutputIterator dest) {
>+  return std::move(container_algorithm_internal::c_begin(src),
>+                   container_algorithm_internal::c_end(src), dest);
>+}
>+
>+// c_swap_ranges()
>+//
>+// Container-based version of the <algorithm> `std::swap_ranges()` function to
>+// swap a container's elements with another container's elements.
>+template <typename C1, typename C2>
>+container_algorithm_internal::ContainerIter<C2> c_swap_ranges(C1& c1, C2& c2) {
>+  return std::swap_ranges(container_algorithm_internal::c_begin(c1),
>+                          container_algorithm_internal::c_end(c1),
>+                          container_algorithm_internal::c_begin(c2));
>+}
>+
>+// c_transform()
>+//
>+// Container-based version of the <algorithm> `std::transform()` function to
>+// transform a container's elements using the unary operation, storing the
>+// result in an iterator pointing to the last transformed element in the output
>+// range.
>+template <typename InputSequence, typename OutputIterator, typename UnaryOp>
>+OutputIterator c_transform(const InputSequence& input, OutputIterator output,
>+                           UnaryOp&& unary_op) {
>+  return std::transform(container_algorithm_internal::c_begin(input),
>+                        container_algorithm_internal::c_end(input), output,
>+                        std::forward<UnaryOp>(unary_op));
>+}
>+
>+// Overload of c_transform() for performing a transformation using a binary
>+// predicate.
>+template <typename InputSequence1, typename InputSequence2,
>+          typename OutputIterator, typename BinaryOp>
>+OutputIterator c_transform(const InputSequence1& input1,
>+                           const InputSequence2& input2, OutputIterator output,
>+                           BinaryOp&& binary_op) {
>+  return std::transform(container_algorithm_internal::c_begin(input1),
>+                        container_algorithm_internal::c_end(input1),
>+                        container_algorithm_internal::c_begin(input2), output,
>+                        std::forward<BinaryOp>(binary_op));
>+}
>+
>+// c_replace()
>+//
>+// Container-based version of the <algorithm> `std::replace()` function to
>+// replace a container's elements of some value with a new value. The container
>+// is modified in place.
>+template <typename Sequence, typename T>
>+void c_replace(Sequence& sequence, const T& old_value, const T& new_value) {
>+  std::replace(container_algorithm_internal::c_begin(sequence),
>+               container_algorithm_internal::c_end(sequence), old_value,
>+               new_value);
>+}
>+
>+// c_replace_if()
>+//
>+// Container-based version of the <algorithm> `std::replace_if()` function to
>+// replace a container's elements of some value with a new value based on some
>+// condition. The container is modified in place.
>+template <typename C, typename Pred, typename T>
>+void c_replace_if(C& c, Pred&& pred, T&& new_value) {
>+  std::replace_if(container_algorithm_internal::c_begin(c),
>+                  container_algorithm_internal::c_end(c),
>+                  std::forward<Pred>(pred), std::forward<T>(new_value));
>+}
>+
>+// c_replace_copy()
>+//
>+// Container-based version of the <algorithm> `std::replace_copy()` function to
>+// replace a container's elements of some value with a new value  and return the
>+// results within an iterator.
>+template <typename C, typename OutputIterator, typename T>
>+OutputIterator c_replace_copy(const C& c, OutputIterator result, T&& old_value,
>+                              T&& new_value) {
>+  return std::replace_copy(container_algorithm_internal::c_begin(c),
>+                           container_algorithm_internal::c_end(c), result,
>+                           std::forward<T>(old_value),
>+                           std::forward<T>(new_value));
>+}
>+
>+// c_replace_copy_if()
>+//
>+// Container-based version of the <algorithm> `std::replace_copy_if()` function
>+// to replace a container's elements of some value with a new value based on
>+// some condition, and return the results within an iterator.
>+template <typename C, typename OutputIterator, typename Pred, typename T>
>+OutputIterator c_replace_copy_if(const C& c, OutputIterator result, Pred&& pred,
>+                                 T&& new_value) {
>+  return std::replace_copy_if(container_algorithm_internal::c_begin(c),
>+                              container_algorithm_internal::c_end(c), result,
>+                              std::forward<Pred>(pred),
>+                              std::forward<T>(new_value));
>+}
>+
>+// c_fill()
>+//
>+// Container-based version of the <algorithm> `std::fill()` function to fill a
>+// container with some value.
>+template <typename C, typename T>
>+void c_fill(C& c, T&& value) {
>+  std::fill(container_algorithm_internal::c_begin(c),
>+            container_algorithm_internal::c_end(c), std::forward<T>(value));
>+}
>+
>+// c_fill_n()
>+//
>+// Container-based version of the <algorithm> `std::fill_n()` function to fill
>+// the first N elements in a container with some value.
>+template <typename C, typename Size, typename T>
>+void c_fill_n(C& c, Size n, T&& value) {
>+  std::fill_n(container_algorithm_internal::c_begin(c), n,
>+              std::forward<T>(value));
>+}
>+
>+// c_generate()
>+//
>+// Container-based version of the <algorithm> `std::generate()` function to
>+// assign a container's elements to the values provided by the given generator.
>+template <typename C, typename Generator>
>+void c_generate(C& c, Generator&& gen) {
>+  std::generate(container_algorithm_internal::c_begin(c),
>+                container_algorithm_internal::c_end(c),
>+                std::forward<Generator>(gen));
>+}
>+
>+// c_generate_n()
>+//
>+// Container-based version of the <algorithm> `std::generate_n()` function to
>+// assign a container's first N elements to the values provided by the given
>+// generator.
>+template <typename C, typename Size, typename Generator>
>+container_algorithm_internal::ContainerIter<C> c_generate_n(C& c, Size n,
>+                                                            Generator&& gen) {
>+  return std::generate_n(container_algorithm_internal::c_begin(c), n,
>+                         std::forward<Generator>(gen));
>+}
>+
>+// Note: `c_xx()` <algorithm> container versions for `remove()`, `remove_if()`,
>+// and `unique()` are omitted, because it's not clear whether or not such
>+// functions should call erase on their supplied sequences afterwards. Either
>+// behavior would be surprising for a different set of users.
>+//
>+
>+// c_remove_copy()
>+//
>+// Container-based version of the <algorithm> `std::remove_copy()` function to
>+// copy a container's elements while removing any elements matching the given
>+// `value`.
>+template <typename C, typename OutputIterator, typename T>
>+OutputIterator c_remove_copy(const C& c, OutputIterator result, T&& value) {
>+  return std::remove_copy(container_algorithm_internal::c_begin(c),
>+                          container_algorithm_internal::c_end(c), result,
>+                          std::forward<T>(value));
>+}
>+
>+// c_remove_copy_if()
>+//
>+// Container-based version of the <algorithm> `std::remove_copy_if()` function
>+// to copy a container's elements while removing any elements matching the given
>+// condition.
>+template <typename C, typename OutputIterator, typename Pred>
>+OutputIterator c_remove_copy_if(const C& c, OutputIterator result,
>+                                Pred&& pred) {
>+  return std::remove_copy_if(container_algorithm_internal::c_begin(c),
>+                             container_algorithm_internal::c_end(c), result,
>+                             std::forward<Pred>(pred));
>+}
>+
>+// c_unique_copy()
>+//
>+// Container-based version of the <algorithm> `std::unique_copy()` function to
>+// copy a container's elements while removing any elements containing duplicate
>+// values.
>+template <typename C, typename OutputIterator>
>+OutputIterator c_unique_copy(const C& c, OutputIterator result) {
>+  return std::unique_copy(container_algorithm_internal::c_begin(c),
>+                          container_algorithm_internal::c_end(c), result);
>+}
>+
>+// Overload of c_unique_copy() for using a predicate evaluation other than
>+// `==` for comparing uniqueness of the element values.
>+template <typename C, typename OutputIterator, typename BinaryPredicate>
>+OutputIterator c_unique_copy(const C& c, OutputIterator result,
>+                             BinaryPredicate&& pred) {
>+  return std::unique_copy(container_algorithm_internal::c_begin(c),
>+                          container_algorithm_internal::c_end(c), result,
>+                          std::forward<BinaryPredicate>(pred));
>+}
>+
>+// c_reverse()
>+//
>+// Container-based version of the <algorithm> `std::reverse()` function to
>+// reverse a container's elements.
>+template <typename Sequence>
>+void c_reverse(Sequence& sequence) {
>+  std::reverse(container_algorithm_internal::c_begin(sequence),
>+               container_algorithm_internal::c_end(sequence));
>+}
>+
>+// c_reverse_copy()
>+//
>+// Container-based version of the <algorithm> `std::reverse()` function to
>+// reverse a container's elements and write them to an iterator range.
>+template <typename C, typename OutputIterator>
>+OutputIterator c_reverse_copy(const C& sequence, OutputIterator result) {
>+  return std::reverse_copy(container_algorithm_internal::c_begin(sequence),
>+                           container_algorithm_internal::c_end(sequence),
>+                           result);
>+}
>+
>+// c_rotate()
>+//
>+// Container-based version of the <algorithm> `std::rotate()` function to
>+// shift a container's elements leftward such that the `middle` element becomes
>+// the first element in the container.
>+template <typename C,
>+          typename Iterator = container_algorithm_internal::ContainerIter<C>>
>+Iterator c_rotate(C& sequence, Iterator middle) {
>+  return absl::rotate(container_algorithm_internal::c_begin(sequence), middle,
>+                      container_algorithm_internal::c_end(sequence));
>+}
>+
>+// c_rotate_copy()
>+//
>+// Container-based version of the <algorithm> `std::rotate_copy()` function to
>+// shift a container's elements leftward such that the `middle` element becomes
>+// the first element in a new iterator range.
>+template <typename C, typename OutputIterator>
>+OutputIterator c_rotate_copy(
>+    const C& sequence,
>+    container_algorithm_internal::ContainerIter<const C> middle,
>+    OutputIterator result) {
>+  return std::rotate_copy(container_algorithm_internal::c_begin(sequence),
>+                          middle, container_algorithm_internal::c_end(sequence),
>+                          result);
>+}
>+
>+// c_shuffle()
>+//
>+// Container-based version of the <algorithm> `std::shuffle()` function to
>+// randomly shuffle elements within the container using a `gen()` uniform random
>+// number generator.
>+template <typename RandomAccessContainer, typename UniformRandomBitGenerator>
>+void c_shuffle(RandomAccessContainer& c, UniformRandomBitGenerator&& gen) {
>+  std::shuffle(container_algorithm_internal::c_begin(c),
>+               container_algorithm_internal::c_end(c),
>+               std::forward<UniformRandomBitGenerator>(gen));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Partition functions
>+//------------------------------------------------------------------------------
>+
>+// c_is_partitioned()
>+//
>+// Container-based version of the <algorithm> `std::is_partitioned()` function
>+// to test whether all elements in the container for which `pred` returns `true`
>+// precede those for which `pred` is `false`.
>+template <typename C, typename Pred>
>+bool c_is_partitioned(const C& c, Pred&& pred) {
>+  return std::is_partitioned(container_algorithm_internal::c_begin(c),
>+                             container_algorithm_internal::c_end(c),
>+                             std::forward<Pred>(pred));
>+}
>+
>+// c_partition()
>+//
>+// Container-based version of the <algorithm> `std::partition()` function
>+// to rearrange all elements in a container in such a way that all elements for
>+// which `pred` returns `true` precede all those for which it returns `false`,
>+// returning an iterator to the first element of the second group.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerIter<C> c_partition(C& c, Pred&& pred) {
>+  return std::partition(container_algorithm_internal::c_begin(c),
>+                        container_algorithm_internal::c_end(c),
>+                        std::forward<Pred>(pred));
>+}
>+
>+// c_stable_partition()
>+//
>+// Container-based version of the <algorithm> `std::stable_partition()` function
>+// to rearrange all elements in a container in such a way that all elements for
>+// which `pred` returns `true` precede all those for which it returns `false`,
>+// preserving the relative ordering between the two groups. The function returns
>+// an iterator to the first element of the second group.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerIter<C> c_stable_partition(C& c,
>+                                                                  Pred&& pred) {
>+  return std::stable_partition(container_algorithm_internal::c_begin(c),
>+                               container_algorithm_internal::c_end(c),
>+                               std::forward<Pred>(pred));
>+}
>+
>+// c_partition_copy()
>+//
>+// Container-based version of the <algorithm> `std::partition_copy()` function
>+// to partition a container's elements and return them into two iterators: one
>+// for which `pred` returns `true`, and one for which `pred` returns `false.`
>+
>+template <typename C, typename OutputIterator1, typename OutputIterator2,
>+          typename Pred>
>+std::pair<OutputIterator1, OutputIterator2> c_partition_copy(
>+    const C& c, OutputIterator1 out_true, OutputIterator2 out_false,
>+    Pred&& pred) {
>+  return std::partition_copy(container_algorithm_internal::c_begin(c),
>+                             container_algorithm_internal::c_end(c), out_true,
>+                             out_false, std::forward<Pred>(pred));
>+}
>+
>+// c_partition_point()
>+//
>+// Container-based version of the <algorithm> `std::partition_point()` function
>+// to return the first element of an already partitioned container for which
>+// the given `pred` is not `true`.
>+template <typename C, typename Pred>
>+container_algorithm_internal::ContainerIter<C> c_partition_point(C& c,
>+                                                                 Pred&& pred) {
>+  return std::partition_point(container_algorithm_internal::c_begin(c),
>+                              container_algorithm_internal::c_end(c),
>+                              std::forward<Pred>(pred));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Sorting functions
>+//------------------------------------------------------------------------------
>+
>+// c_sort()
>+//
>+// Container-based version of the <algorithm> `std::sort()` function
>+// to sort elements in ascending order of their values.
>+template <typename C>
>+void c_sort(C& c) {
>+  std::sort(container_algorithm_internal::c_begin(c),
>+            container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_sort() for performing a `comp` comparison other than the
>+// default `operator<`.
>+template <typename C, typename Compare>
>+void c_sort(C& c, Compare&& comp) {
>+  std::sort(container_algorithm_internal::c_begin(c),
>+            container_algorithm_internal::c_end(c),
>+            std::forward<Compare>(comp));
>+}
>+
>+// c_stable_sort()
>+//
>+// Container-based version of the <algorithm> `std::stable_sort()` function
>+// to sort elements in ascending order of their values, preserving the order
>+// of equivalents.
>+template <typename C>
>+void c_stable_sort(C& c) {
>+  std::stable_sort(container_algorithm_internal::c_begin(c),
>+                   container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_stable_sort() for performing a `comp` comparison other than the
>+// default `operator<`.
>+template <typename C, typename Compare>
>+void c_stable_sort(C& c, Compare&& comp) {
>+  std::stable_sort(container_algorithm_internal::c_begin(c),
>+                   container_algorithm_internal::c_end(c),
>+                   std::forward<Compare>(comp));
>+}
>+
>+// c_is_sorted()
>+//
>+// Container-based version of the <algorithm> `std::is_sorted()` function
>+// to evaluate whether the given container is sorted in ascending order.
>+template <typename C>
>+bool c_is_sorted(const C& c) {
>+  return std::is_sorted(container_algorithm_internal::c_begin(c),
>+                        container_algorithm_internal::c_end(c));
>+}
>+
>+// c_is_sorted() overload for performing a `comp` comparison other than the
>+// default `operator<`.
>+template <typename C, typename Compare>
>+bool c_is_sorted(const C& c, Compare&& comp) {
>+  return std::is_sorted(container_algorithm_internal::c_begin(c),
>+                        container_algorithm_internal::c_end(c),
>+                        std::forward<Compare>(comp));
>+}
>+
>+// c_partial_sort()
>+//
>+// Container-based version of the <algorithm> `std::partial_sort()` function
>+// to rearrange elements within a container such that elements before `middle`
>+// are sorted in ascending order.
>+template <typename RandomAccessContainer>
>+void c_partial_sort(
>+    RandomAccessContainer& sequence,
>+    container_algorithm_internal::ContainerIter<RandomAccessContainer> middle) {
>+  std::partial_sort(container_algorithm_internal::c_begin(sequence), middle,
>+                    container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_partial_sort() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename RandomAccessContainer, typename Compare>
>+void c_partial_sort(
>+    RandomAccessContainer& sequence,
>+    container_algorithm_internal::ContainerIter<RandomAccessContainer> middle,
>+    Compare&& comp) {
>+  std::partial_sort(container_algorithm_internal::c_begin(sequence), middle,
>+                    container_algorithm_internal::c_end(sequence),
>+                    std::forward<Compare>(comp));
>+}
>+
>+// c_partial_sort_copy()
>+//
>+// Container-based version of the <algorithm> `std::partial_sort_copy()`
>+// function to sort elements within a container such that elements before
>+// `middle` are sorted in ascending order, and return the result within an
>+// iterator.
>+template <typename C, typename RandomAccessContainer>
>+container_algorithm_internal::ContainerIter<RandomAccessContainer>
>+c_partial_sort_copy(const C& sequence, RandomAccessContainer& result) {
>+  return std::partial_sort_copy(container_algorithm_internal::c_begin(sequence),
>+                                container_algorithm_internal::c_end(sequence),
>+                                container_algorithm_internal::c_begin(result),
>+                                container_algorithm_internal::c_end(result));
>+}
>+
>+// Overload of c_partial_sort_copy() for performing a `comp` comparison other
>+// than the default `operator<`.
>+template <typename C, typename RandomAccessContainer, typename Compare>
>+container_algorithm_internal::ContainerIter<RandomAccessContainer>
>+c_partial_sort_copy(const C& sequence, RandomAccessContainer& result,
>+                    Compare&& comp) {
>+  return std::partial_sort_copy(container_algorithm_internal::c_begin(sequence),
>+                                container_algorithm_internal::c_end(sequence),
>+                                container_algorithm_internal::c_begin(result),
>+                                container_algorithm_internal::c_end(result),
>+                                std::forward<Compare>(comp));
>+}
>+
>+// c_is_sorted_until()
>+//
>+// Container-based version of the <algorithm> `std::is_sorted_until()` function
>+// to return the first element within a container that is not sorted in
>+// ascending order as an iterator.
>+template <typename C>
>+container_algorithm_internal::ContainerIter<C> c_is_sorted_until(C& c) {
>+  return std::is_sorted_until(container_algorithm_internal::c_begin(c),
>+                              container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_is_sorted_until() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename C, typename Compare>
>+container_algorithm_internal::ContainerIter<C> c_is_sorted_until(
>+    C& c, Compare&& comp) {
>+  return std::is_sorted_until(container_algorithm_internal::c_begin(c),
>+                              container_algorithm_internal::c_end(c),
>+                              std::forward<Compare>(comp));
>+}
>+
>+// c_nth_element()
>+//
>+// Container-based version of the <algorithm> `std::nth_element()` function
>+// to rearrange the elements within a container such that the `nth` element
>+// would be in that position in an ordered sequence; other elements may be in
>+// any order, except that all preceding `nth` will be less than that element,
>+// and all following `nth` will be greater than that element.
>+template <typename RandomAccessContainer>
>+void c_nth_element(
>+    RandomAccessContainer& sequence,
>+    container_algorithm_internal::ContainerIter<RandomAccessContainer> nth) {
>+  std::nth_element(container_algorithm_internal::c_begin(sequence), nth,
>+                   container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_nth_element() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename RandomAccessContainer, typename Compare>
>+void c_nth_element(
>+    RandomAccessContainer& sequence,
>+    container_algorithm_internal::ContainerIter<RandomAccessContainer> nth,
>+    Compare&& comp) {
>+  std::nth_element(container_algorithm_internal::c_begin(sequence), nth,
>+                   container_algorithm_internal::c_end(sequence),
>+                   std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Binary Search
>+//------------------------------------------------------------------------------
>+
>+// c_lower_bound()
>+//
>+// Container-based version of the <algorithm> `std::lower_bound()` function
>+// to return an iterator pointing to the first element in a sorted container
>+// which does not compare less than `value`.
>+template <typename Sequence, typename T>
>+container_algorithm_internal::ContainerIter<Sequence> c_lower_bound(
>+    Sequence& sequence, T&& value) {
>+  return std::lower_bound(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value));
>+}
>+
>+// Overload of c_lower_bound() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename Sequence, typename T, typename Compare>
>+container_algorithm_internal::ContainerIter<Sequence> c_lower_bound(
>+    Sequence& sequence, T&& value, Compare&& comp) {
>+  return std::lower_bound(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value), std::forward<Compare>(comp));
>+}
>+
>+// c_upper_bound()
>+//
>+// Container-based version of the <algorithm> `std::upper_bound()` function
>+// to return an iterator pointing to the first element in a sorted container
>+// which is greater than `value`.
>+template <typename Sequence, typename T>
>+container_algorithm_internal::ContainerIter<Sequence> c_upper_bound(
>+    Sequence& sequence, T&& value) {
>+  return std::upper_bound(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value));
>+}
>+
>+// Overload of c_upper_bound() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename Sequence, typename T, typename Compare>
>+container_algorithm_internal::ContainerIter<Sequence> c_upper_bound(
>+    Sequence& sequence, T&& value, Compare&& comp) {
>+  return std::upper_bound(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value), std::forward<Compare>(comp));
>+}
>+
>+// c_equal_range()
>+//
>+// Container-based version of the <algorithm> `std::equal_range()` function
>+// to return an iterator pair pointing to the first and last elements in a
>+// sorted container which compare equal to `value`.
>+template <typename Sequence, typename T>
>+container_algorithm_internal::ContainerIterPairType<Sequence, Sequence>
>+c_equal_range(Sequence& sequence, T&& value) {
>+  return std::equal_range(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value));
>+}
>+
>+// Overload of c_equal_range() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename Sequence, typename T, typename Compare>
>+container_algorithm_internal::ContainerIterPairType<Sequence, Sequence>
>+c_equal_range(Sequence& sequence, T&& value, Compare&& comp) {
>+  return std::equal_range(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<T>(value), std::forward<Compare>(comp));
>+}
>+
>+// c_binary_search()
>+//
>+// Container-based version of the <algorithm> `std::binary_search()` function
>+// to test if any element in the sorted container contains a value equivalent to
>+// 'value'.
>+template <typename Sequence, typename T>
>+bool c_binary_search(Sequence&& sequence, T&& value) {
>+  return std::binary_search(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence),
>+                            std::forward<T>(value));
>+}
>+
>+// Overload of c_binary_search() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename Sequence, typename T, typename Compare>
>+bool c_binary_search(Sequence&& sequence, T&& value, Compare&& comp) {
>+  return std::binary_search(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence),
>+                            std::forward<T>(value),
>+                            std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Merge functions
>+//------------------------------------------------------------------------------
>+
>+// c_merge()
>+//
>+// Container-based version of the <algorithm> `std::merge()` function
>+// to merge two sorted containers into a single sorted iterator.
>+template <typename C1, typename C2, typename OutputIterator>
>+OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result) {
>+  return std::merge(container_algorithm_internal::c_begin(c1),
>+                    container_algorithm_internal::c_end(c1),
>+                    container_algorithm_internal::c_begin(c2),
>+                    container_algorithm_internal::c_end(c2), result);
>+}
>+
>+// Overload of c_merge() for performing a `comp` comparison other than
>+// the default `operator<`.
>+template <typename C1, typename C2, typename OutputIterator, typename Compare>
>+OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result,
>+                       Compare&& comp) {
>+  return std::merge(container_algorithm_internal::c_begin(c1),
>+                    container_algorithm_internal::c_end(c1),
>+                    container_algorithm_internal::c_begin(c2),
>+                    container_algorithm_internal::c_end(c2), result,
>+                    std::forward<Compare>(comp));
>+}
>+
>+// c_inplace_merge()
>+//
>+// Container-based version of the <algorithm> `std::inplace_merge()` function
>+// to merge a supplied iterator `middle` into a container.
>+template <typename C>
>+void c_inplace_merge(C& c,
>+                     container_algorithm_internal::ContainerIter<C> middle) {
>+  std::inplace_merge(container_algorithm_internal::c_begin(c), middle,
>+                     container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_inplace_merge() for performing a merge using a `comp` other
>+// than `operator<`.
>+template <typename C, typename Compare>
>+void c_inplace_merge(C& c,
>+                     container_algorithm_internal::ContainerIter<C> middle,
>+                     Compare&& comp) {
>+  std::inplace_merge(container_algorithm_internal::c_begin(c), middle,
>+                     container_algorithm_internal::c_end(c),
>+                     std::forward<Compare>(comp));
>+}
>+
>+// c_includes()
>+//
>+// Container-based version of the <algorithm> `std::includes()` function
>+// to test whether a sorted container `c1` entirely contains another sorted
>+// container `c2`.
>+template <typename C1, typename C2>
>+bool c_includes(const C1& c1, const C2& c2) {
>+  return std::includes(container_algorithm_internal::c_begin(c1),
>+                       container_algorithm_internal::c_end(c1),
>+                       container_algorithm_internal::c_begin(c2),
>+                       container_algorithm_internal::c_end(c2));
>+}
>+
>+// Overload of c_includes() for performing a merge using a `comp` other than
>+// `operator<`.
>+template <typename C1, typename C2, typename Compare>
>+bool c_includes(const C1& c1, const C2& c2, Compare&& comp) {
>+  return std::includes(container_algorithm_internal::c_begin(c1),
>+                       container_algorithm_internal::c_end(c1),
>+                       container_algorithm_internal::c_begin(c2),
>+                       container_algorithm_internal::c_end(c2),
>+                       std::forward<Compare>(comp));
>+}
>+
>+// c_set_union()
>+//
>+// Container-based version of the <algorithm> `std::set_union()` function
>+// to return an iterator containing the union of two containers; duplicate
>+// values are not copied into the output.
>+template <typename C1, typename C2, typename OutputIterator>
>+OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output) {
>+  return std::set_union(container_algorithm_internal::c_begin(c1),
>+                        container_algorithm_internal::c_end(c1),
>+                        container_algorithm_internal::c_begin(c2),
>+                        container_algorithm_internal::c_end(c2), output);
>+}
>+
>+// Overload of c_set_union() for performing a merge using a `comp` other than
>+// `operator<`.
>+template <typename C1, typename C2, typename OutputIterator, typename Compare>
>+OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output,
>+                           Compare&& comp) {
>+  return std::set_union(container_algorithm_internal::c_begin(c1),
>+                        container_algorithm_internal::c_end(c1),
>+                        container_algorithm_internal::c_begin(c2),
>+                        container_algorithm_internal::c_end(c2), output,
>+                        std::forward<Compare>(comp));
>+}
>+
>+// c_set_intersection()
>+//
>+// Container-based version of the <algorithm> `std::set_intersection()` function
>+// to return an iterator containing the intersection of two containers.
>+template <typename C1, typename C2, typename OutputIterator>
>+OutputIterator c_set_intersection(const C1& c1, const C2& c2,
>+                                  OutputIterator output) {
>+  return std::set_intersection(container_algorithm_internal::c_begin(c1),
>+                               container_algorithm_internal::c_end(c1),
>+                               container_algorithm_internal::c_begin(c2),
>+                               container_algorithm_internal::c_end(c2), output);
>+}
>+
>+// Overload of c_set_intersection() for performing a merge using a `comp` other
>+// than `operator<`.
>+template <typename C1, typename C2, typename OutputIterator, typename Compare>
>+OutputIterator c_set_intersection(const C1& c1, const C2& c2,
>+                                  OutputIterator output, Compare&& comp) {
>+  return std::set_intersection(container_algorithm_internal::c_begin(c1),
>+                               container_algorithm_internal::c_end(c1),
>+                               container_algorithm_internal::c_begin(c2),
>+                               container_algorithm_internal::c_end(c2), output,
>+                               std::forward<Compare>(comp));
>+}
>+
>+// c_set_difference()
>+//
>+// Container-based version of the <algorithm> `std::set_difference()` function
>+// to return an iterator containing elements present in the first container but
>+// not in the second.
>+template <typename C1, typename C2, typename OutputIterator>
>+OutputIterator c_set_difference(const C1& c1, const C2& c2,
>+                                OutputIterator output) {
>+  return std::set_difference(container_algorithm_internal::c_begin(c1),
>+                             container_algorithm_internal::c_end(c1),
>+                             container_algorithm_internal::c_begin(c2),
>+                             container_algorithm_internal::c_end(c2), output);
>+}
>+
>+// Overload of c_set_difference() for performing a merge using a `comp` other
>+// than `operator<`.
>+template <typename C1, typename C2, typename OutputIterator, typename Compare>
>+OutputIterator c_set_difference(const C1& c1, const C2& c2,
>+                                OutputIterator output, Compare&& comp) {
>+  return std::set_difference(container_algorithm_internal::c_begin(c1),
>+                             container_algorithm_internal::c_end(c1),
>+                             container_algorithm_internal::c_begin(c2),
>+                             container_algorithm_internal::c_end(c2), output,
>+                             std::forward<Compare>(comp));
>+}
>+
>+// c_set_symmetric_difference()
>+//
>+// Container-based version of the <algorithm> `std::set_symmetric_difference()`
>+// function to return an iterator containing elements present in either one
>+// container or the other, but not both.
>+template <typename C1, typename C2, typename OutputIterator>
>+OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2,
>+                                          OutputIterator output) {
>+  return std::set_symmetric_difference(
>+      container_algorithm_internal::c_begin(c1),
>+      container_algorithm_internal::c_end(c1),
>+      container_algorithm_internal::c_begin(c2),
>+      container_algorithm_internal::c_end(c2), output);
>+}
>+
>+// Overload of c_set_symmetric_difference() for performing a merge using a
>+// `comp` other than `operator<`.
>+template <typename C1, typename C2, typename OutputIterator, typename Compare>
>+OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2,
>+                                          OutputIterator output,
>+                                          Compare&& comp) {
>+  return std::set_symmetric_difference(
>+      container_algorithm_internal::c_begin(c1),
>+      container_algorithm_internal::c_end(c1),
>+      container_algorithm_internal::c_begin(c2),
>+      container_algorithm_internal::c_end(c2), output,
>+      std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <algorithm> Heap functions
>+//------------------------------------------------------------------------------
>+
>+// c_push_heap()
>+//
>+// Container-based version of the <algorithm> `std::push_heap()` function
>+// to push a value onto a container heap.
>+template <typename RandomAccessContainer>
>+void c_push_heap(RandomAccessContainer& sequence) {
>+  std::push_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_push_heap() for performing a push operation on a heap using a
>+// `comp` other than `operator<`.
>+template <typename RandomAccessContainer, typename Compare>
>+void c_push_heap(RandomAccessContainer& sequence, Compare&& comp) {
>+  std::push_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence),
>+                 std::forward<Compare>(comp));
>+}
>+
>+// c_pop_heap()
>+//
>+// Container-based version of the <algorithm> `std::pop_heap()` function
>+// to pop a value from a heap container.
>+template <typename RandomAccessContainer>
>+void c_pop_heap(RandomAccessContainer& sequence) {
>+  std::pop_heap(container_algorithm_internal::c_begin(sequence),
>+                container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_pop_heap() for performing a pop operation on a heap using a
>+// `comp` other than `operator<`.
>+template <typename RandomAccessContainer, typename Compare>
>+void c_pop_heap(RandomAccessContainer& sequence, Compare&& comp) {
>+  std::pop_heap(container_algorithm_internal::c_begin(sequence),
>+                container_algorithm_internal::c_end(sequence),
>+                std::forward<Compare>(comp));
>+}
>+
>+// c_make_heap()
>+//
>+// Container-based version of the <algorithm> `std::make_heap()` function
>+// to make a container a heap.
>+template <typename RandomAccessContainer>
>+void c_make_heap(RandomAccessContainer& sequence) {
>+  std::make_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_make_heap() for performing heap comparisons using a
>+// `comp` other than `operator<`
>+template <typename RandomAccessContainer, typename Compare>
>+void c_make_heap(RandomAccessContainer& sequence, Compare&& comp) {
>+  std::make_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence),
>+                 std::forward<Compare>(comp));
>+}
>+
>+// c_sort_heap()
>+//
>+// Container-based version of the <algorithm> `std::sort_heap()` function
>+// to sort a heap into ascending order (after which it is no longer a heap).
>+template <typename RandomAccessContainer>
>+void c_sort_heap(RandomAccessContainer& sequence) {
>+  std::sort_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_sort_heap() for performing heap comparisons using a
>+// `comp` other than `operator<`
>+template <typename RandomAccessContainer, typename Compare>
>+void c_sort_heap(RandomAccessContainer& sequence, Compare&& comp) {
>+  std::sort_heap(container_algorithm_internal::c_begin(sequence),
>+                 container_algorithm_internal::c_end(sequence),
>+                 std::forward<Compare>(comp));
>+}
>+
>+// c_is_heap()
>+//
>+// Container-based version of the <algorithm> `std::is_heap()` function
>+// to check whether the given container is a heap.
>+template <typename RandomAccessContainer>
>+bool c_is_heap(const RandomAccessContainer& sequence) {
>+  return std::is_heap(container_algorithm_internal::c_begin(sequence),
>+                      container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_is_heap() for performing heap comparisons using a
>+// `comp` other than `operator<`
>+template <typename RandomAccessContainer, typename Compare>
>+bool c_is_heap(const RandomAccessContainer& sequence, Compare&& comp) {
>+  return std::is_heap(container_algorithm_internal::c_begin(sequence),
>+                      container_algorithm_internal::c_end(sequence),
>+                      std::forward<Compare>(comp));
>+}
>+
>+// c_is_heap_until()
>+//
>+// Container-based version of the <algorithm> `std::is_heap_until()` function
>+// to find the first element in a given container which is not in heap order.
>+template <typename RandomAccessContainer>
>+container_algorithm_internal::ContainerIter<RandomAccessContainer>
>+c_is_heap_until(RandomAccessContainer& sequence) {
>+  return std::is_heap_until(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_is_heap_until() for performing heap comparisons using a
>+// `comp` other than `operator<`
>+template <typename RandomAccessContainer, typename Compare>
>+container_algorithm_internal::ContainerIter<RandomAccessContainer>
>+c_is_heap_until(RandomAccessContainer& sequence, Compare&& comp) {
>+  return std::is_heap_until(container_algorithm_internal::c_begin(sequence),
>+                            container_algorithm_internal::c_end(sequence),
>+                            std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+//  <algorithm> Min/max
>+//------------------------------------------------------------------------------
>+
>+// c_min_element()
>+//
>+// Container-based version of the <algorithm> `std::min_element()` function
>+// to return an iterator pointing to the element with the smallest value, using
>+// `operator<` to make the comparisons.
>+template <typename Sequence>
>+container_algorithm_internal::ContainerIter<Sequence> c_min_element(
>+    Sequence& sequence) {
>+  return std::min_element(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_min_element() for performing a `comp` comparison other than
>+// `operator<`.
>+template <typename Sequence, typename Compare>
>+container_algorithm_internal::ContainerIter<Sequence> c_min_element(
>+    Sequence& sequence, Compare&& comp) {
>+  return std::min_element(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<Compare>(comp));
>+}
>+
>+// c_max_element()
>+//
>+// Container-based version of the <algorithm> `std::max_element()` function
>+// to return an iterator pointing to the element with the largest value, using
>+// `operator<` to make the comparisons.
>+template <typename Sequence>
>+container_algorithm_internal::ContainerIter<Sequence> c_max_element(
>+    Sequence& sequence) {
>+  return std::max_element(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence));
>+}
>+
>+// Overload of c_max_element() for performing a `comp` comparison other than
>+// `operator<`.
>+template <typename Sequence, typename Compare>
>+container_algorithm_internal::ContainerIter<Sequence> c_max_element(
>+    Sequence& sequence, Compare&& comp) {
>+  return std::max_element(container_algorithm_internal::c_begin(sequence),
>+                          container_algorithm_internal::c_end(sequence),
>+                          std::forward<Compare>(comp));
>+}
>+
>+// c_minmax_element()
>+//
>+// Container-based version of the <algorithm> `std::minmax_element()` function
>+// to return a pair of iterators pointing to the elements containing the
>+// smallest and largest values, respectively, using `operator<` to make the
>+// comparisons.
>+template <typename C>
>+container_algorithm_internal::ContainerIterPairType<C, C>
>+c_minmax_element(C& c) {
>+  return std::minmax_element(container_algorithm_internal::c_begin(c),
>+                             container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_minmax_element() for performing `comp` comparisons other than
>+// `operator<`.
>+template <typename C, typename Compare>
>+container_algorithm_internal::ContainerIterPairType<C, C>
>+c_minmax_element(C& c, Compare&& comp) {
>+  return std::minmax_element(container_algorithm_internal::c_begin(c),
>+                             container_algorithm_internal::c_end(c),
>+                             std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+//  <algorithm> Lexicographical Comparisons
>+//------------------------------------------------------------------------------
>+
>+// c_lexicographical_compare()
>+//
>+// Container-based version of the <algorithm> `std::lexicographical_compare()`
>+// function to lexicographically compare (e.g. sort words alphabetically) two
>+// container sequences. The comparison is performed using `operator<`. Note
>+// that capital letters ("A-Z") have ASCII values less than lowercase letters
>+// ("a-z").
>+template <typename Sequence1, typename Sequence2>
>+bool c_lexicographical_compare(Sequence1&& sequence1, Sequence2&& sequence2) {
>+  return std::lexicographical_compare(
>+      container_algorithm_internal::c_begin(sequence1),
>+      container_algorithm_internal::c_end(sequence1),
>+      container_algorithm_internal::c_begin(sequence2),
>+      container_algorithm_internal::c_end(sequence2));
>+}
>+
>+// Overload of c_lexicographical_compare() for performing a lexicographical
>+// comparison using a `comp` operator instead of `operator<`.
>+template <typename Sequence1, typename Sequence2, typename Compare>
>+bool c_lexicographical_compare(Sequence1&& sequence1, Sequence2&& sequence2,
>+                               Compare&& comp) {
>+  return std::lexicographical_compare(
>+      container_algorithm_internal::c_begin(sequence1),
>+      container_algorithm_internal::c_end(sequence1),
>+      container_algorithm_internal::c_begin(sequence2),
>+      container_algorithm_internal::c_end(sequence2),
>+      std::forward<Compare>(comp));
>+}
>+
>+// c_next_permutation()
>+//
>+// Container-based version of the <algorithm> `std::next_permutation()` function
>+// to rearrange a container's elements into the next lexicographically greater
>+// permutation.
>+template <typename C>
>+bool c_next_permutation(C& c) {
>+  return std::next_permutation(container_algorithm_internal::c_begin(c),
>+                               container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_next_permutation() for performing a lexicographical
>+// comparison using a `comp` operator instead of `operator<`.
>+template <typename C, typename Compare>
>+bool c_next_permutation(C& c, Compare&& comp) {
>+  return std::next_permutation(container_algorithm_internal::c_begin(c),
>+                               container_algorithm_internal::c_end(c),
>+                               std::forward<Compare>(comp));
>+}
>+
>+// c_prev_permutation()
>+//
>+// Container-based version of the <algorithm> `std::prev_permutation()` function
>+// to rearrange a container's elements into the next lexicographically lesser
>+// permutation.
>+template <typename C>
>+bool c_prev_permutation(C& c) {
>+  return std::prev_permutation(container_algorithm_internal::c_begin(c),
>+                               container_algorithm_internal::c_end(c));
>+}
>+
>+// Overload of c_prev_permutation() for performing a lexicographical
>+// comparison using a `comp` operator instead of `operator<`.
>+template <typename C, typename Compare>
>+bool c_prev_permutation(C& c, Compare&& comp) {
>+  return std::prev_permutation(container_algorithm_internal::c_begin(c),
>+                               container_algorithm_internal::c_end(c),
>+                               std::forward<Compare>(comp));
>+}
>+
>+//------------------------------------------------------------------------------
>+// <numeric> algorithms
>+//------------------------------------------------------------------------------
>+
>+// c_iota()
>+//
>+// Container-based version of the <algorithm> `std::iota()` function
>+// to compute successive values of `value`, as if incremented with `++value`
>+// after each element is written. and write them to the container.
>+template <typename Sequence, typename T>
>+void c_iota(Sequence& sequence, T&& value) {
>+  std::iota(container_algorithm_internal::c_begin(sequence),
>+            container_algorithm_internal::c_end(sequence),
>+            std::forward<T>(value));
>+}
>+// c_accumulate()
>+//
>+// Container-based version of the <algorithm> `std::accumulate()` function
>+// to accumulate the element values of a container to `init` and return that
>+// accumulation by value.
>+//
>+// Note: Due to a language technicality this function has return type
>+// absl::decay_t<T>. As a user of this function you can casually read
>+// this as "returns T by value" and assume it does the right thing.
>+template <typename Sequence, typename T>
>+decay_t<T> c_accumulate(const Sequence& sequence, T&& init) {
>+  return std::accumulate(container_algorithm_internal::c_begin(sequence),
>+                         container_algorithm_internal::c_end(sequence),
>+                         std::forward<T>(init));
>+}
>+
>+// Overload of c_accumulate() for using a binary operations other than
>+// addition for computing the accumulation.
>+template <typename Sequence, typename T, typename BinaryOp>
>+decay_t<T> c_accumulate(const Sequence& sequence, T&& init,
>+                        BinaryOp&& binary_op) {
>+  return std::accumulate(container_algorithm_internal::c_begin(sequence),
>+                         container_algorithm_internal::c_end(sequence),
>+                         std::forward<T>(init),
>+                         std::forward<BinaryOp>(binary_op));
>+}
>+
>+// c_inner_product()
>+//
>+// Container-based version of the <algorithm> `std::inner_product()` function
>+// to compute the cumulative inner product of container element pairs.
>+//
>+// Note: Due to a language technicality this function has return type
>+// absl::decay_t<T>. As a user of this function you can casually read
>+// this as "returns T by value" and assume it does the right thing.
>+template <typename Sequence1, typename Sequence2, typename T>
>+decay_t<T> c_inner_product(const Sequence1& factors1, const Sequence2& factors2,
>+                           T&& sum) {
>+  return std::inner_product(container_algorithm_internal::c_begin(factors1),
>+                            container_algorithm_internal::c_end(factors1),
>+                            container_algorithm_internal::c_begin(factors2),
>+                            std::forward<T>(sum));
>+}
>+
>+// Overload of c_inner_product() for using binary operations other than
>+// `operator+` (for computing the accumulation) and `operator*` (for computing
>+// the product between the two container's element pair).
>+template <typename Sequence1, typename Sequence2, typename T,
>+          typename BinaryOp1, typename BinaryOp2>
>+decay_t<T> c_inner_product(const Sequence1& factors1, const Sequence2& factors2,
>+                           T&& sum, BinaryOp1&& op1, BinaryOp2&& op2) {
>+  return std::inner_product(container_algorithm_internal::c_begin(factors1),
>+                            container_algorithm_internal::c_end(factors1),
>+                            container_algorithm_internal::c_begin(factors2),
>+                            std::forward<T>(sum), std::forward<BinaryOp1>(op1),
>+                            std::forward<BinaryOp2>(op2));
>+}
>+
>+// c_adjacent_difference()
>+//
>+// Container-based version of the <algorithm> `std::adjacent_difference()`
>+// function to compute the difference between each element and the one preceding
>+// it and write it to an iterator.
>+template <typename InputSequence, typename OutputIt>
>+OutputIt c_adjacent_difference(const InputSequence& input,
>+                               OutputIt output_first) {
>+  return std::adjacent_difference(container_algorithm_internal::c_begin(input),
>+                                  container_algorithm_internal::c_end(input),
>+                                  output_first);
>+}
>+
>+// Overload of c_adjacent_difference() for using a binary operation other than
>+// subtraction to compute the adjacent difference.
>+template <typename InputSequence, typename OutputIt, typename BinaryOp>
>+OutputIt c_adjacent_difference(const InputSequence& input,
>+                               OutputIt output_first, BinaryOp&& op) {
>+  return std::adjacent_difference(container_algorithm_internal::c_begin(input),
>+                                  container_algorithm_internal::c_end(input),
>+                                  output_first, std::forward<BinaryOp>(op));
>+}
>+
>+// c_partial_sum()
>+//
>+// Container-based version of the <algorithm> `std::partial_sum()` function
>+// to compute the partial sum of the elements in a sequence and write them
>+// to an iterator. The partial sum is the sum of all element values so far in
>+// the sequence.
>+template <typename InputSequence, typename OutputIt>
>+OutputIt c_partial_sum(const InputSequence& input, OutputIt output_first) {
>+  return std::partial_sum(container_algorithm_internal::c_begin(input),
>+                          container_algorithm_internal::c_end(input),
>+                          output_first);
>+}
>+
>+// Overload of c_partial_sum() for using a binary operation other than addition
>+// to compute the "partial sum".
>+template <typename InputSequence, typename OutputIt, typename BinaryOp>
>+OutputIt c_partial_sum(const InputSequence& input, OutputIt output_first,
>+                       BinaryOp&& op) {
>+  return std::partial_sum(container_algorithm_internal::c_begin(input),
>+                          container_algorithm_internal::c_end(input),
>+                          output_first, std::forward<BinaryOp>(op));
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_ALGORITHM_CONTAINER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..de66f14680f1b8f22d2e965d441a05efc58a6c03
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/container_test.cc
>@@ -0,0 +1,997 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/algorithm/container.h"
>+
>+#include <functional>
>+#include <initializer_list>
>+#include <iterator>
>+#include <list>
>+#include <memory>
>+#include <ostream>
>+#include <random>
>+#include <set>
>+#include <unordered_set>
>+#include <utility>
>+#include <valarray>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/casts.h"
>+#include "absl/base/macros.h"
>+#include "absl/memory/memory.h"
>+#include "absl/types/span.h"
>+
>+namespace {
>+
>+using ::testing::Each;
>+using ::testing::ElementsAre;
>+using ::testing::Gt;
>+using ::testing::IsNull;
>+using ::testing::Lt;
>+using ::testing::Pointee;
>+using ::testing::Truly;
>+using ::testing::UnorderedElementsAre;
>+
>+// Most of these tests just check that the code compiles, not that it
>+// does the right thing. That's fine since the functions just forward
>+// to the STL implementation.
>+class NonMutatingTest : public testing::Test {
>+ protected:
>+  std::unordered_set<int> container_ = {1, 2, 3};
>+  std::list<int> sequence_ = {1, 2, 3};
>+  std::vector<int> vector_ = {1, 2, 3};
>+  int array_[3] = {1, 2, 3};
>+};
>+
>+struct AccumulateCalls {
>+  void operator()(int value) {
>+    calls.push_back(value);
>+  }
>+  std::vector<int> calls;
>+};
>+
>+bool Predicate(int value) { return value < 3; }
>+bool BinPredicate(int v1, int v2) { return v1 < v2; }
>+bool Equals(int v1, int v2) { return v1 == v2; }
>+bool IsOdd(int x) { return x % 2 != 0; }
>+
>+
>+TEST_F(NonMutatingTest, Distance) {
>+  EXPECT_EQ(container_.size(), absl::c_distance(container_));
>+  EXPECT_EQ(sequence_.size(), absl::c_distance(sequence_));
>+  EXPECT_EQ(vector_.size(), absl::c_distance(vector_));
>+  EXPECT_EQ(ABSL_ARRAYSIZE(array_), absl::c_distance(array_));
>+
>+  // Works with a temporary argument.
>+  EXPECT_EQ(vector_.size(), absl::c_distance(std::vector<int>(vector_)));
>+}
>+
>+TEST_F(NonMutatingTest, Distance_OverloadedBeginEnd) {
>+  // Works with classes which have custom ADL-selected overloads of std::begin
>+  // and std::end.
>+  std::initializer_list<int> a = {1, 2, 3};
>+  std::valarray<int> b = {1, 2, 3};
>+  EXPECT_EQ(3, absl::c_distance(a));
>+  EXPECT_EQ(3, absl::c_distance(b));
>+
>+  // It is assumed that other c_* functions use the same mechanism for
>+  // ADL-selecting begin/end overloads.
>+}
>+
>+TEST_F(NonMutatingTest, ForEach) {
>+  AccumulateCalls c = absl::c_for_each(container_, AccumulateCalls());
>+  // Don't rely on the unordered_set's order.
>+  std::sort(c.calls.begin(), c.calls.end());
>+  EXPECT_EQ(vector_, c.calls);
>+
>+  // Works with temporary container, too.
>+  AccumulateCalls c2 =
>+      absl::c_for_each(std::unordered_set<int>(container_), AccumulateCalls());
>+  std::sort(c2.calls.begin(), c2.calls.end());
>+  EXPECT_EQ(vector_, c2.calls);
>+}
>+
>+TEST_F(NonMutatingTest, FindReturnsCorrectType) {
>+  auto it = absl::c_find(container_, 3);
>+  EXPECT_EQ(3, *it);
>+  absl::c_find(absl::implicit_cast<const std::list<int>&>(sequence_), 3);
>+}
>+
>+TEST_F(NonMutatingTest, FindIf) { absl::c_find_if(container_, Predicate); }
>+
>+TEST_F(NonMutatingTest, FindIfNot) {
>+  absl::c_find_if_not(container_, Predicate);
>+}
>+
>+TEST_F(NonMutatingTest, FindEnd) {
>+  absl::c_find_end(sequence_, vector_);
>+  absl::c_find_end(vector_, sequence_);
>+}
>+
>+TEST_F(NonMutatingTest, FindEndWithPredicate) {
>+  absl::c_find_end(sequence_, vector_, BinPredicate);
>+  absl::c_find_end(vector_, sequence_, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, FindFirstOf) {
>+  absl::c_find_first_of(container_, sequence_);
>+  absl::c_find_first_of(sequence_, container_);
>+}
>+
>+TEST_F(NonMutatingTest, FindFirstOfWithPredicate) {
>+  absl::c_find_first_of(container_, sequence_, BinPredicate);
>+  absl::c_find_first_of(sequence_, container_, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, AdjacentFind) { absl::c_adjacent_find(sequence_); }
>+
>+TEST_F(NonMutatingTest, AdjacentFindWithPredicate) {
>+  absl::c_adjacent_find(sequence_, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, Count) { EXPECT_EQ(1, absl::c_count(container_, 3)); }
>+
>+TEST_F(NonMutatingTest, CountIf) {
>+  EXPECT_EQ(2, absl::c_count_if(container_, Predicate));
>+  const std::unordered_set<int>& const_container = container_;
>+  EXPECT_EQ(2, absl::c_count_if(const_container, Predicate));
>+}
>+
>+TEST_F(NonMutatingTest, Mismatch) {
>+  absl::c_mismatch(container_, sequence_);
>+  absl::c_mismatch(sequence_, container_);
>+}
>+
>+TEST_F(NonMutatingTest, MismatchWithPredicate) {
>+  absl::c_mismatch(container_, sequence_, BinPredicate);
>+  absl::c_mismatch(sequence_, container_, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, Equal) {
>+  EXPECT_TRUE(absl::c_equal(vector_, sequence_));
>+  EXPECT_TRUE(absl::c_equal(sequence_, vector_));
>+
>+  // Test that behavior appropriately differs from that of equal().
>+  std::vector<int> vector_plus = {1, 2, 3};
>+  vector_plus.push_back(4);
>+  EXPECT_FALSE(absl::c_equal(vector_plus, sequence_));
>+  EXPECT_FALSE(absl::c_equal(sequence_, vector_plus));
>+}
>+
>+TEST_F(NonMutatingTest, EqualWithPredicate) {
>+  EXPECT_TRUE(absl::c_equal(vector_, sequence_, Equals));
>+  EXPECT_TRUE(absl::c_equal(sequence_, vector_, Equals));
>+
>+  // Test that behavior appropriately differs from that of equal().
>+  std::vector<int> vector_plus = {1, 2, 3};
>+  vector_plus.push_back(4);
>+  EXPECT_FALSE(absl::c_equal(vector_plus, sequence_, Equals));
>+  EXPECT_FALSE(absl::c_equal(sequence_, vector_plus, Equals));
>+}
>+
>+TEST_F(NonMutatingTest, IsPermutation) {
>+  auto vector_permut_ = vector_;
>+  std::next_permutation(vector_permut_.begin(), vector_permut_.end());
>+  EXPECT_TRUE(absl::c_is_permutation(vector_permut_, sequence_));
>+  EXPECT_TRUE(absl::c_is_permutation(sequence_, vector_permut_));
>+
>+  // Test that behavior appropriately differs from that of is_permutation().
>+  std::vector<int> vector_plus = {1, 2, 3};
>+  vector_plus.push_back(4);
>+  EXPECT_FALSE(absl::c_is_permutation(vector_plus, sequence_));
>+  EXPECT_FALSE(absl::c_is_permutation(sequence_, vector_plus));
>+}
>+
>+TEST_F(NonMutatingTest, IsPermutationWithPredicate) {
>+  auto vector_permut_ = vector_;
>+  std::next_permutation(vector_permut_.begin(), vector_permut_.end());
>+  EXPECT_TRUE(absl::c_is_permutation(vector_permut_, sequence_, Equals));
>+  EXPECT_TRUE(absl::c_is_permutation(sequence_, vector_permut_, Equals));
>+
>+  // Test that behavior appropriately differs from that of is_permutation().
>+  std::vector<int> vector_plus = {1, 2, 3};
>+  vector_plus.push_back(4);
>+  EXPECT_FALSE(absl::c_is_permutation(vector_plus, sequence_, Equals));
>+  EXPECT_FALSE(absl::c_is_permutation(sequence_, vector_plus, Equals));
>+}
>+
>+TEST_F(NonMutatingTest, Search) {
>+  absl::c_search(sequence_, vector_);
>+  absl::c_search(vector_, sequence_);
>+  absl::c_search(array_, sequence_);
>+}
>+
>+TEST_F(NonMutatingTest, SearchWithPredicate) {
>+  absl::c_search(sequence_, vector_, BinPredicate);
>+  absl::c_search(vector_, sequence_, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, SearchN) { absl::c_search_n(sequence_, 3, 1); }
>+
>+TEST_F(NonMutatingTest, SearchNWithPredicate) {
>+  absl::c_search_n(sequence_, 3, 1, BinPredicate);
>+}
>+
>+TEST_F(NonMutatingTest, LowerBound) {
>+  std::list<int>::iterator i = absl::c_lower_bound(sequence_, 3);
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(2, std::distance(sequence_.begin(), i));
>+  EXPECT_EQ(3, *i);
>+}
>+
>+TEST_F(NonMutatingTest, LowerBoundWithPredicate) {
>+  std::vector<int> v(vector_);
>+  std::sort(v.begin(), v.end(), std::greater<int>());
>+  std::vector<int>::iterator i = absl::c_lower_bound(v, 3, std::greater<int>());
>+  EXPECT_TRUE(i == v.begin());
>+  EXPECT_EQ(3, *i);
>+}
>+
>+TEST_F(NonMutatingTest, UpperBound) {
>+  std::list<int>::iterator i = absl::c_upper_bound(sequence_, 1);
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(1, std::distance(sequence_.begin(), i));
>+  EXPECT_EQ(2, *i);
>+}
>+
>+TEST_F(NonMutatingTest, UpperBoundWithPredicate) {
>+  std::vector<int> v(vector_);
>+  std::sort(v.begin(), v.end(), std::greater<int>());
>+  std::vector<int>::iterator i = absl::c_upper_bound(v, 1, std::greater<int>());
>+  EXPECT_EQ(3, i - v.begin());
>+  EXPECT_TRUE(i == v.end());
>+}
>+
>+TEST_F(NonMutatingTest, EqualRange) {
>+  std::pair<std::list<int>::iterator, std::list<int>::iterator> p =
>+      absl::c_equal_range(sequence_, 2);
>+  EXPECT_EQ(1, std::distance(sequence_.begin(), p.first));
>+  EXPECT_EQ(2, std::distance(sequence_.begin(), p.second));
>+}
>+
>+TEST_F(NonMutatingTest, EqualRangeArray) {
>+  auto p = absl::c_equal_range(array_, 2);
>+  EXPECT_EQ(1, std::distance(std::begin(array_), p.first));
>+  EXPECT_EQ(2, std::distance(std::begin(array_), p.second));
>+}
>+
>+TEST_F(NonMutatingTest, EqualRangeWithPredicate) {
>+  std::vector<int> v(vector_);
>+  std::sort(v.begin(), v.end(), std::greater<int>());
>+  std::pair<std::vector<int>::iterator, std::vector<int>::iterator> p =
>+      absl::c_equal_range(v, 2, std::greater<int>());
>+  EXPECT_EQ(1, std::distance(v.begin(), p.first));
>+  EXPECT_EQ(2, std::distance(v.begin(), p.second));
>+}
>+
>+TEST_F(NonMutatingTest, BinarySearch) {
>+  EXPECT_TRUE(absl::c_binary_search(vector_, 2));
>+  EXPECT_TRUE(absl::c_binary_search(std::vector<int>(vector_), 2));
>+}
>+
>+TEST_F(NonMutatingTest, BinarySearchWithPredicate) {
>+  std::vector<int> v(vector_);
>+  std::sort(v.begin(), v.end(), std::greater<int>());
>+  EXPECT_TRUE(absl::c_binary_search(v, 2, std::greater<int>()));
>+  EXPECT_TRUE(
>+      absl::c_binary_search(std::vector<int>(v), 2, std::greater<int>()));
>+}
>+
>+TEST_F(NonMutatingTest, MinElement) {
>+  std::list<int>::iterator i = absl::c_min_element(sequence_);
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(*i, 1);
>+}
>+
>+TEST_F(NonMutatingTest, MinElementWithPredicate) {
>+  std::list<int>::iterator i =
>+      absl::c_min_element(sequence_, std::greater<int>());
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(*i, 3);
>+}
>+
>+TEST_F(NonMutatingTest, MaxElement) {
>+  std::list<int>::iterator i = absl::c_max_element(sequence_);
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(*i, 3);
>+}
>+
>+TEST_F(NonMutatingTest, MaxElementWithPredicate) {
>+  std::list<int>::iterator i =
>+      absl::c_max_element(sequence_, std::greater<int>());
>+  ASSERT_TRUE(i != sequence_.end());
>+  EXPECT_EQ(*i, 1);
>+}
>+
>+TEST_F(NonMutatingTest, LexicographicalCompare) {
>+  EXPECT_FALSE(absl::c_lexicographical_compare(sequence_, sequence_));
>+
>+  std::vector<int> v;
>+  v.push_back(1);
>+  v.push_back(2);
>+  v.push_back(4);
>+
>+  EXPECT_TRUE(absl::c_lexicographical_compare(sequence_, v));
>+  EXPECT_TRUE(absl::c_lexicographical_compare(std::list<int>(sequence_), v));
>+}
>+
>+TEST_F(NonMutatingTest, LexicographicalCopmareWithPredicate) {
>+  EXPECT_FALSE(absl::c_lexicographical_compare(sequence_, sequence_,
>+                                               std::greater<int>()));
>+
>+  std::vector<int> v;
>+  v.push_back(1);
>+  v.push_back(2);
>+  v.push_back(4);
>+
>+  EXPECT_TRUE(
>+      absl::c_lexicographical_compare(v, sequence_, std::greater<int>()));
>+  EXPECT_TRUE(absl::c_lexicographical_compare(
>+      std::vector<int>(v), std::list<int>(sequence_), std::greater<int>()));
>+}
>+
>+TEST_F(NonMutatingTest, Includes) {
>+  std::set<int> s(vector_.begin(), vector_.end());
>+  s.insert(4);
>+  EXPECT_TRUE(absl::c_includes(s, vector_));
>+}
>+
>+TEST_F(NonMutatingTest, IncludesWithPredicate) {
>+  std::vector<int> v = {3, 2, 1};
>+  std::set<int, std::greater<int>> s(v.begin(), v.end());
>+  s.insert(4);
>+  EXPECT_TRUE(absl::c_includes(s, v, std::greater<int>()));
>+}
>+
>+class NumericMutatingTest : public testing::Test {
>+ protected:
>+  std::list<int> list_ = {1, 2, 3};
>+  std::vector<int> output_;
>+};
>+
>+TEST_F(NumericMutatingTest, Iota) {
>+  absl::c_iota(list_, 5);
>+  std::list<int> expected{5, 6, 7};
>+  EXPECT_EQ(list_, expected);
>+}
>+
>+TEST_F(NonMutatingTest, Accumulate) {
>+  EXPECT_EQ(absl::c_accumulate(sequence_, 4), 1 + 2 + 3 + 4);
>+}
>+
>+TEST_F(NonMutatingTest, AccumulateWithBinaryOp) {
>+  EXPECT_EQ(absl::c_accumulate(sequence_, 4, std::multiplies<int>()),
>+            1 * 2 * 3 * 4);
>+}
>+
>+TEST_F(NonMutatingTest, AccumulateLvalueInit) {
>+  int lvalue = 4;
>+  EXPECT_EQ(absl::c_accumulate(sequence_, lvalue), 1 + 2 + 3 + 4);
>+}
>+
>+TEST_F(NonMutatingTest, AccumulateWithBinaryOpLvalueInit) {
>+  int lvalue = 4;
>+  EXPECT_EQ(absl::c_accumulate(sequence_, lvalue, std::multiplies<int>()),
>+            1 * 2 * 3 * 4);
>+}
>+
>+TEST_F(NonMutatingTest, InnerProduct) {
>+  EXPECT_EQ(absl::c_inner_product(sequence_, vector_, 1000),
>+            1000 + 1 * 1 + 2 * 2 + 3 * 3);
>+}
>+
>+TEST_F(NonMutatingTest, InnerProductWithBinaryOps) {
>+  EXPECT_EQ(absl::c_inner_product(sequence_, vector_, 10,
>+                                  std::multiplies<int>(), std::plus<int>()),
>+            10 * (1 + 1) * (2 + 2) * (3 + 3));
>+}
>+
>+TEST_F(NonMutatingTest, InnerProductLvalueInit) {
>+  int lvalue = 1000;
>+  EXPECT_EQ(absl::c_inner_product(sequence_, vector_, lvalue),
>+            1000 + 1 * 1 + 2 * 2 + 3 * 3);
>+}
>+
>+TEST_F(NonMutatingTest, InnerProductWithBinaryOpsLvalueInit) {
>+  int lvalue = 10;
>+  EXPECT_EQ(absl::c_inner_product(sequence_, vector_, lvalue,
>+                                  std::multiplies<int>(), std::plus<int>()),
>+            10 * (1 + 1) * (2 + 2) * (3 + 3));
>+}
>+
>+TEST_F(NumericMutatingTest, AdjacentDifference) {
>+  auto last = absl::c_adjacent_difference(list_, std::back_inserter(output_));
>+  *last = 1000;
>+  std::vector<int> expected{1, 2 - 1, 3 - 2, 1000};
>+  EXPECT_EQ(output_, expected);
>+}
>+
>+TEST_F(NumericMutatingTest, AdjacentDifferenceWithBinaryOp) {
>+  auto last = absl::c_adjacent_difference(list_, std::back_inserter(output_),
>+                                          std::multiplies<int>());
>+  *last = 1000;
>+  std::vector<int> expected{1, 2 * 1, 3 * 2, 1000};
>+  EXPECT_EQ(output_, expected);
>+}
>+
>+TEST_F(NumericMutatingTest, PartialSum) {
>+  auto last = absl::c_partial_sum(list_, std::back_inserter(output_));
>+  *last = 1000;
>+  std::vector<int> expected{1, 1 + 2, 1 + 2 + 3, 1000};
>+  EXPECT_EQ(output_, expected);
>+}
>+
>+TEST_F(NumericMutatingTest, PartialSumWithBinaryOp) {
>+  auto last = absl::c_partial_sum(list_, std::back_inserter(output_),
>+                                  std::multiplies<int>());
>+  *last = 1000;
>+  std::vector<int> expected{1, 1 * 2, 1 * 2 * 3, 1000};
>+  EXPECT_EQ(output_, expected);
>+}
>+
>+TEST_F(NonMutatingTest, LinearSearch) {
>+  EXPECT_TRUE(absl::c_linear_search(container_, 3));
>+  EXPECT_FALSE(absl::c_linear_search(container_, 4));
>+}
>+
>+TEST_F(NonMutatingTest, AllOf) {
>+  const std::vector<int>& v = vector_;
>+  EXPECT_FALSE(absl::c_all_of(v, [](int x) { return x > 1; }));
>+  EXPECT_TRUE(absl::c_all_of(v, [](int x) { return x > 0; }));
>+}
>+
>+TEST_F(NonMutatingTest, AnyOf) {
>+  const std::vector<int>& v = vector_;
>+  EXPECT_TRUE(absl::c_any_of(v, [](int x) { return x > 2; }));
>+  EXPECT_FALSE(absl::c_any_of(v, [](int x) { return x > 5; }));
>+}
>+
>+TEST_F(NonMutatingTest, NoneOf) {
>+  const std::vector<int>& v = vector_;
>+  EXPECT_FALSE(absl::c_none_of(v, [](int x) { return x > 2; }));
>+  EXPECT_TRUE(absl::c_none_of(v, [](int x) { return x > 5; }));
>+}
>+
>+TEST_F(NonMutatingTest, MinMaxElementLess) {
>+  std::pair<std::vector<int>::const_iterator, std::vector<int>::const_iterator>
>+      p = absl::c_minmax_element(vector_, std::less<int>());
>+  EXPECT_TRUE(p.first == vector_.begin());
>+  EXPECT_TRUE(p.second == vector_.begin() + 2);
>+}
>+
>+TEST_F(NonMutatingTest, MinMaxElementGreater) {
>+  std::pair<std::vector<int>::const_iterator, std::vector<int>::const_iterator>
>+      p = absl::c_minmax_element(vector_, std::greater<int>());
>+  EXPECT_TRUE(p.first == vector_.begin() + 2);
>+  EXPECT_TRUE(p.second == vector_.begin());
>+}
>+
>+TEST_F(NonMutatingTest, MinMaxElementNoPredicate) {
>+  std::pair<std::vector<int>::const_iterator, std::vector<int>::const_iterator>
>+      p = absl::c_minmax_element(vector_);
>+  EXPECT_TRUE(p.first == vector_.begin());
>+  EXPECT_TRUE(p.second == vector_.begin() + 2);
>+}
>+
>+class SortingTest : public testing::Test {
>+ protected:
>+  std::list<int> sorted_ = {1, 2, 3, 4};
>+  std::list<int> unsorted_ = {2, 4, 1, 3};
>+  std::list<int> reversed_ = {4, 3, 2, 1};
>+};
>+
>+TEST_F(SortingTest, IsSorted) {
>+  EXPECT_TRUE(absl::c_is_sorted(sorted_));
>+  EXPECT_FALSE(absl::c_is_sorted(unsorted_));
>+  EXPECT_FALSE(absl::c_is_sorted(reversed_));
>+}
>+
>+TEST_F(SortingTest, IsSortedWithPredicate) {
>+  EXPECT_FALSE(absl::c_is_sorted(sorted_, std::greater<int>()));
>+  EXPECT_FALSE(absl::c_is_sorted(unsorted_, std::greater<int>()));
>+  EXPECT_TRUE(absl::c_is_sorted(reversed_, std::greater<int>()));
>+}
>+
>+TEST_F(SortingTest, IsSortedUntil) {
>+  EXPECT_EQ(1, *absl::c_is_sorted_until(unsorted_));
>+  EXPECT_EQ(4, *absl::c_is_sorted_until(unsorted_, std::greater<int>()));
>+}
>+
>+TEST_F(SortingTest, NthElement) {
>+  std::vector<int> unsorted = {2, 4, 1, 3};
>+  absl::c_nth_element(unsorted, unsorted.begin() + 2);
>+  EXPECT_THAT(unsorted,
>+              ElementsAre(Lt(3), Lt(3), 3, Gt(3)));
>+  absl::c_nth_element(unsorted, unsorted.begin() + 2, std::greater<int>());
>+  EXPECT_THAT(unsorted,
>+              ElementsAre(Gt(2), Gt(2), 2, Lt(2)));
>+}
>+
>+TEST(MutatingTest, IsPartitioned) {
>+  EXPECT_TRUE(
>+      absl::c_is_partitioned(std::vector<int>{1, 3, 5, 2, 4, 6}, IsOdd));
>+  EXPECT_FALSE(
>+      absl::c_is_partitioned(std::vector<int>{1, 2, 3, 4, 5, 6}, IsOdd));
>+  EXPECT_FALSE(
>+      absl::c_is_partitioned(std::vector<int>{2, 4, 6, 1, 3, 5}, IsOdd));
>+}
>+
>+TEST(MutatingTest, Partition) {
>+  std::vector<int> actual = {1, 2, 3, 4, 5};
>+  absl::c_partition(actual, IsOdd);
>+  EXPECT_THAT(actual, Truly([](const std::vector<int>& c) {
>+                return absl::c_is_partitioned(c, IsOdd);
>+              }));
>+}
>+
>+TEST(MutatingTest, StablePartition) {
>+  std::vector<int> actual = {1, 2, 3, 4, 5};
>+  absl::c_stable_partition(actual, IsOdd);
>+  EXPECT_THAT(actual, ElementsAre(1, 3, 5, 2, 4));
>+}
>+
>+TEST(MutatingTest, PartitionCopy) {
>+  const std::vector<int> initial = {1, 2, 3, 4, 5};
>+  std::vector<int> odds, evens;
>+  auto ends = absl::c_partition_copy(initial, back_inserter(odds),
>+                                     back_inserter(evens), IsOdd);
>+  *ends.first = 7;
>+  *ends.second = 6;
>+  EXPECT_THAT(odds, ElementsAre(1, 3, 5, 7));
>+  EXPECT_THAT(evens, ElementsAre(2, 4, 6));
>+}
>+
>+TEST(MutatingTest, PartitionPoint) {
>+  const std::vector<int> initial = {1, 3, 5, 2, 4};
>+  auto middle = absl::c_partition_point(initial, IsOdd);
>+  EXPECT_EQ(2, *middle);
>+}
>+
>+TEST(MutatingTest, CopyMiddle) {
>+  const std::vector<int> initial = {4, -1, -2, -3, 5};
>+  const std::list<int> input = {1, 2, 3};
>+  const std::vector<int> expected = {4, 1, 2, 3, 5};
>+
>+  std::list<int> test_list(initial.begin(), initial.end());
>+  absl::c_copy(input, ++test_list.begin());
>+  EXPECT_EQ(std::list<int>(expected.begin(), expected.end()), test_list);
>+
>+  std::vector<int> test_vector = initial;
>+  absl::c_copy(input, test_vector.begin() + 1);
>+  EXPECT_EQ(expected, test_vector);
>+}
>+
>+TEST(MutatingTest, CopyFrontInserter) {
>+  const std::list<int> initial = {4, 5};
>+  const std::list<int> input = {1, 2, 3};
>+  const std::list<int> expected = {3, 2, 1, 4, 5};
>+
>+  std::list<int> test_list = initial;
>+  absl::c_copy(input, std::front_inserter(test_list));
>+  EXPECT_EQ(expected, test_list);
>+}
>+
>+TEST(MutatingTest, CopyBackInserter) {
>+  const std::vector<int> initial = {4, 5};
>+  const std::list<int> input = {1, 2, 3};
>+  const std::vector<int> expected = {4, 5, 1, 2, 3};
>+
>+  std::list<int> test_list(initial.begin(), initial.end());
>+  absl::c_copy(input, std::back_inserter(test_list));
>+  EXPECT_EQ(std::list<int>(expected.begin(), expected.end()), test_list);
>+
>+  std::vector<int> test_vector = initial;
>+  absl::c_copy(input, std::back_inserter(test_vector));
>+  EXPECT_EQ(expected, test_vector);
>+}
>+
>+TEST(MutatingTest, CopyN) {
>+  const std::vector<int> initial = {1, 2, 3, 4, 5};
>+  const std::vector<int> expected = {1, 2};
>+  std::vector<int> actual;
>+  absl::c_copy_n(initial, 2, back_inserter(actual));
>+  EXPECT_EQ(expected, actual);
>+}
>+
>+TEST(MutatingTest, CopyIf) {
>+  const std::list<int> input = {1, 2, 3};
>+  std::vector<int> output;
>+  absl::c_copy_if(input, std::back_inserter(output),
>+                  [](int i) { return i != 2; });
>+  EXPECT_THAT(output, ElementsAre(1, 3));
>+}
>+
>+TEST(MutatingTest, CopyBackward) {
>+  std::vector<int> actual = {1, 2, 3, 4, 5};
>+  std::vector<int> expected = {1, 2, 1, 2, 3};
>+  absl::c_copy_backward(absl::MakeSpan(actual.data(), 3), actual.end());
>+  EXPECT_EQ(expected, actual);
>+}
>+
>+TEST(MutatingTest, Move) {
>+  std::vector<std::unique_ptr<int>> src;
>+  src.emplace_back(absl::make_unique<int>(1));
>+  src.emplace_back(absl::make_unique<int>(2));
>+  src.emplace_back(absl::make_unique<int>(3));
>+  src.emplace_back(absl::make_unique<int>(4));
>+  src.emplace_back(absl::make_unique<int>(5));
>+
>+  std::vector<std::unique_ptr<int>> dest = {};
>+  absl::c_move(src, std::back_inserter(dest));
>+  EXPECT_THAT(src, Each(IsNull()));
>+  EXPECT_THAT(dest, ElementsAre(Pointee(1), Pointee(2), Pointee(3), Pointee(4),
>+                                Pointee(5)));
>+}
>+
>+TEST(MutatingTest, SwapRanges) {
>+  std::vector<int> odds = {2, 4, 6};
>+  std::vector<int> evens = {1, 3, 5};
>+  absl::c_swap_ranges(odds, evens);
>+  EXPECT_THAT(odds, ElementsAre(1, 3, 5));
>+  EXPECT_THAT(evens, ElementsAre(2, 4, 6));
>+}
>+
>+TEST_F(NonMutatingTest, Transform) {
>+  std::vector<int> x{0, 2, 4}, y, z;
>+  auto end = absl::c_transform(x, back_inserter(y), std::negate<int>());
>+  EXPECT_EQ(std::vector<int>({0, -2, -4}), y);
>+  *end = 7;
>+  EXPECT_EQ(std::vector<int>({0, -2, -4, 7}), y);
>+
>+  y = {1, 3, 0};
>+  end = absl::c_transform(x, y, back_inserter(z), std::plus<int>());
>+  EXPECT_EQ(std::vector<int>({1, 5, 4}), z);
>+  *end = 7;
>+  EXPECT_EQ(std::vector<int>({1, 5, 4, 7}), z);
>+}
>+
>+TEST(MutatingTest, Replace) {
>+  const std::vector<int> initial = {1, 2, 3, 1, 4, 5};
>+  const std::vector<int> expected = {4, 2, 3, 4, 4, 5};
>+
>+  std::vector<int> test_vector = initial;
>+  absl::c_replace(test_vector, 1, 4);
>+  EXPECT_EQ(expected, test_vector);
>+
>+  std::list<int> test_list(initial.begin(), initial.end());
>+  absl::c_replace(test_list, 1, 4);
>+  EXPECT_EQ(std::list<int>(expected.begin(), expected.end()), test_list);
>+}
>+
>+TEST(MutatingTest, ReplaceIf) {
>+  std::vector<int> actual = {1, 2, 3, 4, 5};
>+  const std::vector<int> expected = {0, 2, 0, 4, 0};
>+
>+  absl::c_replace_if(actual, IsOdd, 0);
>+  EXPECT_EQ(expected, actual);
>+}
>+
>+TEST(MutatingTest, ReplaceCopy) {
>+  const std::vector<int> initial = {1, 2, 3, 1, 4, 5};
>+  const std::vector<int> expected = {4, 2, 3, 4, 4, 5};
>+
>+  std::vector<int> actual;
>+  absl::c_replace_copy(initial, back_inserter(actual), 1, 4);
>+  EXPECT_EQ(expected, actual);
>+}
>+
>+TEST(MutatingTest, Sort) {
>+  std::vector<int> test_vector = {2, 3, 1, 4};
>+  absl::c_sort(test_vector);
>+  EXPECT_THAT(test_vector, ElementsAre(1, 2, 3, 4));
>+}
>+
>+TEST(MutatingTest, SortWithPredicate) {
>+  std::vector<int> test_vector = {2, 3, 1, 4};
>+  absl::c_sort(test_vector, std::greater<int>());
>+  EXPECT_THAT(test_vector, ElementsAre(4, 3, 2, 1));
>+}
>+
>+// For absl::c_stable_sort tests. Needs an operator< that does not cover all
>+// fields so that the test can check the sort preserves order of equal elements.
>+struct Element {
>+  int key;
>+  int value;
>+  friend bool operator<(const Element& e1, const Element& e2) {
>+    return e1.key < e2.key;
>+  }
>+  // Make gmock print useful diagnostics.
>+  friend std::ostream& operator<<(std::ostream& o, const Element& e) {
>+    return o << "{" << e.key << ", " << e.value << "}";
>+  }
>+};
>+
>+MATCHER_P2(IsElement, key, value, "") {
>+  return arg.key == key && arg.value == value;
>+}
>+
>+TEST(MutatingTest, StableSort) {
>+  std::vector<Element> test_vector = {{1, 1}, {2, 1}, {2, 0}, {1, 0}, {2, 2}};
>+  absl::c_stable_sort(test_vector);
>+  EXPECT_THAT(
>+      test_vector,
>+      ElementsAre(IsElement(1, 1), IsElement(1, 0), IsElement(2, 1),
>+                  IsElement(2, 0), IsElement(2, 2)));
>+}
>+
>+TEST(MutatingTest, StableSortWithPredicate) {
>+  std::vector<Element> test_vector = {{1, 1}, {2, 1}, {2, 0}, {1, 0}, {2, 2}};
>+  absl::c_stable_sort(test_vector, [](const Element& e1, const Element& e2) {
>+    return e2 < e1;
>+  });
>+  EXPECT_THAT(
>+      test_vector,
>+      ElementsAre(IsElement(2, 1), IsElement(2, 0), IsElement(2, 2),
>+                  IsElement(1, 1), IsElement(1, 0)));
>+}
>+
>+TEST(MutatingTest, ReplaceCopyIf) {
>+  const std::vector<int> initial = {1, 2, 3, 4, 5};
>+  const std::vector<int> expected = {0, 2, 0, 4, 0};
>+
>+  std::vector<int> actual;
>+  absl::c_replace_copy_if(initial, back_inserter(actual), IsOdd, 0);
>+  EXPECT_EQ(expected, actual);
>+}
>+
>+TEST(MutatingTest, Fill) {
>+  std::vector<int> actual(5);
>+  absl::c_fill(actual, 1);
>+  EXPECT_THAT(actual, ElementsAre(1, 1, 1, 1, 1));
>+}
>+
>+TEST(MutatingTest, FillN) {
>+  std::vector<int> actual(5, 0);
>+  absl::c_fill_n(actual, 2, 1);
>+  EXPECT_THAT(actual, ElementsAre(1, 1, 0, 0, 0));
>+}
>+
>+TEST(MutatingTest, Generate) {
>+  std::vector<int> actual(5);
>+  int x = 0;
>+  absl::c_generate(actual, [&x]() { return ++x; });
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5));
>+}
>+
>+TEST(MutatingTest, GenerateN) {
>+  std::vector<int> actual(5, 0);
>+  int x = 0;
>+  absl::c_generate_n(actual, 3, [&x]() { return ++x; });
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 0, 0));
>+}
>+
>+TEST(MutatingTest, RemoveCopy) {
>+  std::vector<int> actual;
>+  absl::c_remove_copy(std::vector<int>{1, 2, 3}, back_inserter(actual), 2);
>+  EXPECT_THAT(actual, ElementsAre(1, 3));
>+}
>+
>+TEST(MutatingTest, RemoveCopyIf) {
>+  std::vector<int> actual;
>+  absl::c_remove_copy_if(std::vector<int>{1, 2, 3}, back_inserter(actual),
>+                         IsOdd);
>+  EXPECT_THAT(actual, ElementsAre(2));
>+}
>+
>+TEST(MutatingTest, UniqueCopy) {
>+  std::vector<int> actual;
>+  absl::c_unique_copy(std::vector<int>{1, 2, 2, 2, 3, 3, 2},
>+                      back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 2));
>+}
>+
>+TEST(MutatingTest, UniqueCopyWithPredicate) {
>+  std::vector<int> actual;
>+  absl::c_unique_copy(std::vector<int>{1, 2, 3, -1, -2, -3, 1},
>+                      back_inserter(actual),
>+                      [](int x, int y) { return (x < 0) == (y < 0); });
>+  EXPECT_THAT(actual, ElementsAre(1, -1, 1));
>+}
>+
>+TEST(MutatingTest, Reverse) {
>+  std::vector<int> test_vector = {1, 2, 3, 4};
>+  absl::c_reverse(test_vector);
>+  EXPECT_THAT(test_vector, ElementsAre(4, 3, 2, 1));
>+
>+  std::list<int> test_list = {1, 2, 3, 4};
>+  absl::c_reverse(test_list);
>+  EXPECT_THAT(test_list, ElementsAre(4, 3, 2, 1));
>+}
>+
>+TEST(MutatingTest, ReverseCopy) {
>+  std::vector<int> actual;
>+  absl::c_reverse_copy(std::vector<int>{1, 2, 3, 4}, back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(4, 3, 2, 1));
>+}
>+
>+TEST(MutatingTest, Rotate) {
>+  std::vector<int> actual = {1, 2, 3, 4};
>+  auto it = absl::c_rotate(actual, actual.begin() + 2);
>+  EXPECT_THAT(actual, testing::ElementsAreArray({3, 4, 1, 2}));
>+  EXPECT_EQ(*it, 1);
>+}
>+
>+TEST(MutatingTest, RotateCopy) {
>+  std::vector<int> initial = {1, 2, 3, 4};
>+  std::vector<int> actual;
>+  auto end =
>+      absl::c_rotate_copy(initial, initial.begin() + 2, back_inserter(actual));
>+  *end = 5;
>+  EXPECT_THAT(actual, ElementsAre(3, 4, 1, 2, 5));
>+}
>+
>+TEST(MutatingTest, Shuffle) {
>+  std::vector<int> actual = {1, 2, 3, 4, 5};
>+  absl::c_shuffle(actual, std::random_device());
>+  EXPECT_THAT(actual, UnorderedElementsAre(1, 2, 3, 4, 5));
>+}
>+
>+TEST(MutatingTest, PartialSort) {
>+  std::vector<int> sequence{5, 3, 42, 0};
>+  absl::c_partial_sort(sequence, sequence.begin() + 2);
>+  EXPECT_THAT(absl::MakeSpan(sequence.data(), 2), ElementsAre(0, 3));
>+  absl::c_partial_sort(sequence, sequence.begin() + 2, std::greater<int>());
>+  EXPECT_THAT(absl::MakeSpan(sequence.data(), 2), ElementsAre(42, 5));
>+}
>+
>+TEST(MutatingTest, PartialSortCopy) {
>+  const std::vector<int> initial = {5, 3, 42, 0};
>+  std::vector<int> actual(2);
>+  absl::c_partial_sort_copy(initial, actual);
>+  EXPECT_THAT(actual, ElementsAre(0, 3));
>+  absl::c_partial_sort_copy(initial, actual, std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(42, 5));
>+}
>+
>+TEST(MutatingTest, Merge) {
>+  std::vector<int> actual;
>+  absl::c_merge(std::vector<int>{1, 3, 5}, std::vector<int>{2, 4},
>+                back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5));
>+}
>+
>+TEST(MutatingTest, MergeWithComparator) {
>+  std::vector<int> actual;
>+  absl::c_merge(std::vector<int>{5, 3, 1}, std::vector<int>{4, 2},
>+                back_inserter(actual), std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(5, 4, 3, 2, 1));
>+}
>+
>+TEST(MutatingTest, InplaceMerge) {
>+  std::vector<int> actual = {1, 3, 5, 2, 4};
>+  absl::c_inplace_merge(actual, actual.begin() + 3);
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 4, 5));
>+}
>+
>+TEST(MutatingTest, InplaceMergeWithComparator) {
>+  std::vector<int> actual = {5, 3, 1, 4, 2};
>+  absl::c_inplace_merge(actual, actual.begin() + 3, std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(5, 4, 3, 2, 1));
>+}
>+
>+class SetOperationsTest : public testing::Test {
>+ protected:
>+  std::vector<int> a_ = {1, 2, 3};
>+  std::vector<int> b_ = {1, 3, 5};
>+
>+  std::vector<int> a_reversed_ = {3, 2, 1};
>+  std::vector<int> b_reversed_ = {5, 3, 1};
>+};
>+
>+TEST_F(SetOperationsTest, SetUnion) {
>+  std::vector<int> actual;
>+  absl::c_set_union(a_, b_, back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(1, 2, 3, 5));
>+}
>+
>+TEST_F(SetOperationsTest, SetUnionWithComparator) {
>+  std::vector<int> actual;
>+  absl::c_set_union(a_reversed_, b_reversed_, back_inserter(actual),
>+                    std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(5, 3, 2, 1));
>+}
>+
>+TEST_F(SetOperationsTest, SetIntersection) {
>+  std::vector<int> actual;
>+  absl::c_set_intersection(a_, b_, back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(1, 3));
>+}
>+
>+TEST_F(SetOperationsTest, SetIntersectionWithComparator) {
>+  std::vector<int> actual;
>+  absl::c_set_intersection(a_reversed_, b_reversed_, back_inserter(actual),
>+                           std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(3, 1));
>+}
>+
>+TEST_F(SetOperationsTest, SetDifference) {
>+  std::vector<int> actual;
>+  absl::c_set_difference(a_, b_, back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(2));
>+}
>+
>+TEST_F(SetOperationsTest, SetDifferenceWithComparator) {
>+  std::vector<int> actual;
>+  absl::c_set_difference(a_reversed_, b_reversed_, back_inserter(actual),
>+                         std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(2));
>+}
>+
>+TEST_F(SetOperationsTest, SetSymmetricDifference) {
>+  std::vector<int> actual;
>+  absl::c_set_symmetric_difference(a_, b_, back_inserter(actual));
>+  EXPECT_THAT(actual, ElementsAre(2, 5));
>+}
>+
>+TEST_F(SetOperationsTest, SetSymmetricDifferenceWithComparator) {
>+  std::vector<int> actual;
>+  absl::c_set_symmetric_difference(a_reversed_, b_reversed_,
>+                                   back_inserter(actual), std::greater<int>());
>+  EXPECT_THAT(actual, ElementsAre(5, 2));
>+}
>+
>+TEST(HeapOperationsTest, WithoutComparator) {
>+  std::vector<int> heap = {1, 2, 3};
>+  EXPECT_FALSE(absl::c_is_heap(heap));
>+  absl::c_make_heap(heap);
>+  EXPECT_TRUE(absl::c_is_heap(heap));
>+  heap.push_back(4);
>+  EXPECT_EQ(3, absl::c_is_heap_until(heap) - heap.begin());
>+  absl::c_push_heap(heap);
>+  EXPECT_EQ(4, heap[0]);
>+  absl::c_pop_heap(heap);
>+  EXPECT_EQ(4, heap[3]);
>+  absl::c_make_heap(heap);
>+  absl::c_sort_heap(heap);
>+  EXPECT_THAT(heap, ElementsAre(1, 2, 3, 4));
>+  EXPECT_FALSE(absl::c_is_heap(heap));
>+}
>+
>+TEST(HeapOperationsTest, WithComparator) {
>+  using greater = std::greater<int>;
>+  std::vector<int> heap = {3, 2, 1};
>+  EXPECT_FALSE(absl::c_is_heap(heap, greater()));
>+  absl::c_make_heap(heap, greater());
>+  EXPECT_TRUE(absl::c_is_heap(heap, greater()));
>+  heap.push_back(0);
>+  EXPECT_EQ(3, absl::c_is_heap_until(heap, greater()) - heap.begin());
>+  absl::c_push_heap(heap, greater());
>+  EXPECT_EQ(0, heap[0]);
>+  absl::c_pop_heap(heap, greater());
>+  EXPECT_EQ(0, heap[3]);
>+  absl::c_make_heap(heap, greater());
>+  absl::c_sort_heap(heap, greater());
>+  EXPECT_THAT(heap, ElementsAre(3, 2, 1, 0));
>+  EXPECT_FALSE(absl::c_is_heap(heap, greater()));
>+}
>+
>+TEST(MutatingTest, PermutationOperations) {
>+  std::vector<int> initial = {1, 2, 3, 4};
>+  std::vector<int> permuted = initial;
>+
>+  absl::c_next_permutation(permuted);
>+  EXPECT_TRUE(absl::c_is_permutation(initial, permuted));
>+  EXPECT_TRUE(absl::c_is_permutation(initial, permuted, std::equal_to<int>()));
>+
>+  std::vector<int> permuted2 = initial;
>+  absl::c_prev_permutation(permuted2, std::greater<int>());
>+  EXPECT_EQ(permuted, permuted2);
>+
>+  absl::c_prev_permutation(permuted);
>+  EXPECT_EQ(initial, permuted);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..19c0780ccd179ce745b5e6821add3da40c582791
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/algorithm/equal_benchmark.cc
>@@ -0,0 +1,126 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstdint>
>+#include <cstring>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/algorithm/algorithm.h"
>+
>+namespace {
>+
>+// The range of sequence sizes to benchmark.
>+constexpr int kMinBenchmarkSize = 1024;
>+constexpr int kMaxBenchmarkSize = 8 * 1024 * 1024;
>+
>+// A user-defined type for use in equality benchmarks. Note that we expect
>+// std::memcmp to win for this type: libstdc++'s std::equal only defers to
>+// memcmp for integral types. This is because it is not straightforward to
>+// guarantee that std::memcmp would produce a result "as-if" compared by
>+// operator== for other types (example gotchas: NaN floats, structs with
>+// padding).
>+struct EightBits {
>+  explicit EightBits(int /* unused */) : data(0) {}
>+  bool operator==(const EightBits& rhs) const { return data == rhs.data; }
>+  uint8_t data;
>+};
>+
>+template <typename T>
>+void BM_absl_equal_benchmark(benchmark::State& state) {
>+  std::vector<T> xs(state.range(0), T(0));
>+  std::vector<T> ys = xs;
>+  while (state.KeepRunning()) {
>+    const bool same = absl::equal(xs.begin(), xs.end(), ys.begin(), ys.end());
>+    benchmark::DoNotOptimize(same);
>+  }
>+}
>+
>+template <typename T>
>+void BM_std_equal_benchmark(benchmark::State& state) {
>+  std::vector<T> xs(state.range(0), T(0));
>+  std::vector<T> ys = xs;
>+  while (state.KeepRunning()) {
>+    const bool same = std::equal(xs.begin(), xs.end(), ys.begin());
>+    benchmark::DoNotOptimize(same);
>+  }
>+}
>+
>+template <typename T>
>+void BM_memcmp_benchmark(benchmark::State& state) {
>+  std::vector<T> xs(state.range(0), T(0));
>+  std::vector<T> ys = xs;
>+  while (state.KeepRunning()) {
>+    const bool same =
>+        std::memcmp(xs.data(), ys.data(), xs.size() * sizeof(T)) == 0;
>+    benchmark::DoNotOptimize(same);
>+  }
>+}
>+
>+// The expectation is that the compiler should be able to elide the equality
>+// comparison altogether for sufficiently simple types.
>+template <typename T>
>+void BM_absl_equal_self_benchmark(benchmark::State& state) {
>+  std::vector<T> xs(state.range(0), T(0));
>+  while (state.KeepRunning()) {
>+    const bool same = absl::equal(xs.begin(), xs.end(), xs.begin(), xs.end());
>+    benchmark::DoNotOptimize(same);
>+  }
>+}
>+
>+BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint8_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint8_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint8_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint8_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+
>+BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint16_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint16_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint16_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint16_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+
>+BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint32_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint32_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint32_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint32_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+
>+BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, uint64_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_std_equal_benchmark, uint64_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_memcmp_benchmark, uint64_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, uint64_t)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+
>+BENCHMARK_TEMPLATE(BM_absl_equal_benchmark, EightBits)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_std_equal_benchmark, EightBits)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_memcmp_benchmark, EightBits)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+BENCHMARK_TEMPLATE(BM_absl_equal_self_benchmark, EightBits)
>+    ->Range(kMinBenchmarkSize, kMaxBenchmarkSize);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..06d092ebdfa83abf924bb3ee032694259b2e4b2d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.bazel
>@@ -0,0 +1,423 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+    "ABSL_EXCEPTIONS_FLAG",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "spinlock_wait",
>+    srcs = [
>+        "internal/spinlock_akaros.inc",
>+        "internal/spinlock_posix.inc",
>+        "internal/spinlock_wait.cc",
>+        "internal/spinlock_win32.inc",
>+    ],
>+    hdrs = [
>+        "internal/scheduling_mode.h",
>+        "internal/spinlock_wait.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl/base:__pkg__",
>+    ],
>+    deps = [":core_headers"],
>+)
>+
>+cc_library(
>+    name = "config",
>+    hdrs = [
>+        "config.h",
>+        "policy_checks.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+)
>+
>+cc_library(
>+    name = "dynamic_annotations",
>+    srcs = ["dynamic_annotations.cc"],
>+    hdrs = ["dynamic_annotations.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    defines = ["__CLANG_SUPPORT_DYN_ANNOTATION__"],
>+)
>+
>+cc_library(
>+    name = "core_headers",
>+    hdrs = [
>+        "attributes.h",
>+        "macros.h",
>+        "optimization.h",
>+        "port.h",
>+        "thread_annotations.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":config",
>+        ":dynamic_annotations",
>+    ],
>+)
>+
>+cc_library(
>+    name = "malloc_internal",
>+    srcs = [
>+        "internal/low_level_alloc.cc",
>+    ],
>+    hdrs = [
>+        "internal/direct_mmap.h",
>+        "internal/low_level_alloc.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+    deps = [
>+        ":base",
>+        ":config",
>+        ":core_headers",
>+        ":dynamic_annotations",
>+        ":spinlock_wait",
>+    ],
>+)
>+
>+cc_library(
>+    name = "base_internal",
>+    hdrs = [
>+        "internal/hide_ptr.h",
>+        "internal/identity.h",
>+        "internal/inline_variable.h",
>+        "internal/invoke.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+)
>+
>+cc_library(
>+    name = "base",
>+    srcs = [
>+        "internal/cycleclock.cc",
>+        "internal/raw_logging.cc",
>+        "internal/spinlock.cc",
>+        "internal/sysinfo.cc",
>+        "internal/thread_identity.cc",
>+        "internal/unscaledcycleclock.cc",
>+    ],
>+    hdrs = [
>+        "call_once.h",
>+        "casts.h",
>+        "internal/atomic_hook.h",
>+        "internal/cycleclock.h",
>+        "internal/low_level_scheduling.h",
>+        "internal/per_thread_tls.h",
>+        "internal/raw_logging.h",
>+        "internal/spinlock.h",
>+        "internal/sysinfo.h",
>+        "internal/thread_identity.h",
>+        "internal/tsan_mutex_interface.h",
>+        "internal/unscaledcycleclock.h",
>+        "log_severity.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":base_internal",
>+        ":config",
>+        ":core_headers",
>+        ":dynamic_annotations",
>+        ":spinlock_wait",
>+    ],
>+)
>+
>+cc_test(
>+    name = "atomic_hook_test",
>+    size = "small",
>+    srcs = ["internal/atomic_hook_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "bit_cast_test",
>+    size = "small",
>+    srcs = [
>+        "bit_cast_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "throw_delegate",
>+    srcs = ["internal/throw_delegate.cc"],
>+    hdrs = ["internal/throw_delegate.h"],
>+    copts = ABSL_DEFAULT_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+    deps = [
>+        ":base",
>+        ":config",
>+        ":core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "throw_delegate_test",
>+    srcs = ["throw_delegate_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":throw_delegate",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "exception_testing",
>+    testonly = 1,
>+    hdrs = ["internal/exception_testing.h"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+    deps = [
>+        ":config",
>+        "@com_google_googletest//:gtest",
>+    ],
>+)
>+
>+cc_library(
>+    name = "pretty_function",
>+    hdrs = ["internal/pretty_function.h"],
>+    visibility = ["//absl:__subpackages__"],
>+)
>+
>+cc_library(
>+    name = "exception_safety_testing",
>+    testonly = 1,
>+    srcs = ["internal/exception_safety_testing.cc"],
>+    hdrs = ["internal/exception_safety_testing.h"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":base",
>+        ":config",
>+        ":pretty_function",
>+        "//absl/memory",
>+        "//absl/meta:type_traits",
>+        "//absl/strings",
>+        "//absl/types:optional",
>+        "@com_google_googletest//:gtest",
>+    ],
>+)
>+
>+cc_test(
>+    name = "exception_safety_testing_test",
>+    srcs = ["exception_safety_testing_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":exception_safety_testing",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "inline_variable_test",
>+    size = "small",
>+    srcs = [
>+        "inline_variable_test.cc",
>+        "inline_variable_test_a.cc",
>+        "inline_variable_test_b.cc",
>+        "internal/inline_variable_testing.h",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base_internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "invoke_test",
>+    size = "small",
>+    srcs = ["invoke_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base_internal",
>+        "//absl/memory",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+# Common test library made available for use in non-absl code that overrides
>+# AbslInternalSpinLockDelay and AbslInternalSpinLockWake.
>+cc_library(
>+    name = "spinlock_test_common",
>+    testonly = 1,
>+    srcs = ["spinlock_test_common.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        ":spinlock_wait",
>+        "//absl/synchronization",
>+        "@com_google_googletest//:gtest",
>+    ],
>+    alwayslink = 1,
>+)
>+
>+cc_test(
>+    name = "spinlock_test",
>+    size = "medium",
>+    srcs = ["spinlock_test_common.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        ":spinlock_wait",
>+        "//absl/synchronization",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "endian",
>+    hdrs = [
>+        "internal/endian.h",
>+        "internal/unaligned_access.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":config",
>+        ":core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "endian_test",
>+    srcs = ["internal/endian_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":config",
>+        ":endian",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "config_test",
>+    srcs = ["config_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":config",
>+        "//absl/synchronization:thread_pool",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "call_once_test",
>+    srcs = ["call_once_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        "//absl/synchronization",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "raw_logging_test",
>+    srcs = ["raw_logging_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "sysinfo_test",
>+    size = "small",
>+    srcs = ["internal/sysinfo_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":base",
>+        "//absl/synchronization",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "low_level_alloc_test",
>+    size = "small",
>+    srcs = ["internal/low_level_alloc_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    linkopts = select({
>+        "//absl:windows": [],
>+        "//conditions:default": ["-pthread"],
>+    }),
>+    tags = ["no_test_ios_x86_64"],
>+    deps = [":malloc_internal"],
>+)
>+
>+cc_test(
>+    name = "thread_identity_test",
>+    size = "small",
>+    srcs = ["internal/thread_identity_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    linkopts = select({
>+        "//absl:windows": [],
>+        "//conditions:default": ["-pthread"],
>+    }),
>+    deps = [
>+        ":base",
>+        ":core_headers",
>+        "//absl/synchronization",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "thread_identity_benchmark",
>+    srcs = ["internal/thread_identity_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":base",
>+        "//absl/synchronization",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..a714656462290bcd40cd4999ca1fef20c8637e7d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/BUILD.gn
>@@ -0,0 +1,298 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("spinlock_wait") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/spinlock_akaros.inc",
>+    "internal/spinlock_posix.inc",
>+    "internal/spinlock_wait.cc",
>+    "internal/spinlock_win32.inc",
>+  ]
>+  public = [
>+    "internal/scheduling_mode.h",
>+    "internal/spinlock_wait.h",
>+  ]
>+  deps = [
>+    ":core_headers",
>+  ]
>+  visibility = []
>+  visibility += [ "../base:*" ]
>+}
>+
>+source_set("config") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "config.h",
>+    "policy_checks.h",
>+  ]
>+}
>+
>+config("clang_support_dynamic_annotations") {
>+  cflags_cc = [ "-D__CLANG_SUPPORT_DYN_ANNOTATION__" ]
>+}
>+
>+source_set("dynamic_annotations") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [
>+    ":clang_support_dynamic_annotations",
>+    "//third_party/abseil-cpp:absl_include_config",
>+  ]
>+  sources = [
>+    "dynamic_annotations.cc",
>+  ]
>+  public = [
>+    "dynamic_annotations.h",
>+  ]
>+  # Abseil's dynamic annotations are only visible inside Abseil because
>+  # their usage is deprecated in Chromium (see README.chromium for more info).
>+  visibility = []
>+  visibility = [ "../*" ]
>+}
>+
>+source_set("core_headers") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "attributes.h",
>+    "macros.h",
>+    "optimization.h",
>+    "port.h",
>+    "thread_annotations.h",
>+  ]
>+  deps = [
>+    ":config",
>+    ":dynamic_annotations",
>+  ]
>+}
>+
>+source_set("malloc_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/low_level_alloc.cc",
>+  ]
>+  public = [
>+    "internal/direct_mmap.h",
>+    "internal/low_level_alloc.h",
>+  ]
>+  deps = [
>+    ":base",
>+    ":config",
>+    ":core_headers",
>+    ":dynamic_annotations",
>+    ":spinlock_wait",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+source_set("base_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/hide_ptr.h",
>+    "internal/identity.h",
>+    "internal/inline_variable.h",
>+    "internal/invoke.h",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+source_set("base") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/cycleclock.cc",
>+    "internal/raw_logging.cc",
>+    "internal/spinlock.cc",
>+    "internal/sysinfo.cc",
>+    "internal/thread_identity.cc",
>+    "internal/unscaledcycleclock.cc",
>+  ]
>+  public = [
>+    "call_once.h",
>+    "casts.h",
>+    "internal/atomic_hook.h",
>+    "internal/cycleclock.h",
>+    "internal/low_level_scheduling.h",
>+    "internal/per_thread_tls.h",
>+    "internal/raw_logging.h",
>+    "internal/spinlock.h",
>+    "internal/sysinfo.h",
>+    "internal/thread_identity.h",
>+    "internal/tsan_mutex_interface.h",
>+    "internal/unscaledcycleclock.h",
>+    "log_severity.h",
>+  ]
>+  deps = [
>+    ":base_internal",
>+    ":config",
>+    ":core_headers",
>+    ":dynamic_annotations",
>+    ":spinlock_wait",
>+  ]
>+}
>+
>+source_set("throw_delegate") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/throw_delegate.cc",
>+  ]
>+  public = [
>+    "internal/throw_delegate.h",
>+  ]
>+  deps = [
>+    ":base",
>+    ":config",
>+    ":core_headers",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+source_set("exception_testing") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_test_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/exception_testing.h",
>+  ]
>+  deps = [
>+    ":config",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+source_set("pretty_function") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/pretty_function.h",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+# TODO(mbonadei): This target throws by design. We should probably
>+# just remove it.
>+# source_set("exception_safety_testing") {
>+#   testonly = true
>+#   configs -= [ "//build/config/compiler:chromium_code" ]
>+#   configs += [
>+#     "//build/config/compiler:no_chromium_code",
>+#     "//third_party/abseil-cpp:absl_test_cflags_cc",
>+#   ]
>+#   public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+#   sources = [
>+#     "internal/exception_safety_testing.cc",
>+#   ]
>+#   public = [
>+#     "internal/exception_safety_testing.h",
>+#   ]
>+#   deps = [
>+#     ":base",
>+#     ":config",
>+#     ":pretty_function",
>+#     "../memory",
>+#     "../meta:type_traits",
>+#     "../strings",
>+#     "../types:optional",
>+#     "//testing/gtest",
>+#   ]
>+# }
>+
>+source_set("spinlock_test_common") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_test_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "spinlock_test_common.cc",
>+  ]
>+  deps = [
>+    ":base",
>+    ":core_headers",
>+    ":spinlock_wait",
>+    "../synchronization",
>+    "//testing/gtest",
>+  ]
>+}
>+
>+source_set("endian") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/endian.h",
>+    "internal/unaligned_access.h",
>+  ]
>+  deps = [
>+    ":config",
>+    ":core_headers",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..01d2af085f58e15f3e2639c516cf66d46d121bed
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/CMakeLists.txt
>@@ -0,0 +1,386 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#    http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND BASE_PUBLIC_HEADERS
>+  "attributes.h"
>+  "call_once.h"
>+  "casts.h"
>+  "config.h"
>+  "dynamic_annotations.h"
>+  "log_severity.h"
>+  "macros.h"
>+  "optimization.h"
>+  "policy_checks.h"
>+  "port.h"
>+  "thread_annotations.h"
>+)
>+
>+
>+list(APPEND BASE_INTERNAL_HEADERS
>+  "internal/atomic_hook.h"
>+  "internal/cycleclock.h"
>+  "internal/direct_mmap.h"
>+  "internal/endian.h"
>+  "internal/exception_testing.h"
>+  "internal/exception_safety_testing.h"
>+  "internal/hide_ptr.h"
>+  "internal/identity.h"
>+  "internal/invoke.h"
>+  "internal/inline_variable.h"
>+  "internal/low_level_alloc.h"
>+  "internal/low_level_scheduling.h"
>+  "internal/per_thread_tls.h"
>+  "internal/pretty_function.h"
>+  "internal/raw_logging.h"
>+  "internal/scheduling_mode.h"
>+  "internal/spinlock.h"
>+  "internal/spinlock_wait.h"
>+  "internal/sysinfo.h"
>+  "internal/thread_identity.h"
>+  "internal/throw_delegate.h"
>+  "internal/tsan_mutex_interface.h"
>+  "internal/unaligned_access.h"
>+  "internal/unscaledcycleclock.h"
>+)
>+
>+
>+# absl_base main library
>+list(APPEND BASE_SRC
>+  "internal/cycleclock.cc"
>+  "internal/raw_logging.cc"
>+  "internal/spinlock.cc"
>+  "internal/sysinfo.cc"
>+  "internal/thread_identity.cc"
>+  "internal/unscaledcycleclock.cc"
>+  "internal/low_level_alloc.cc"
>+  ${BASE_PUBLIC_HEADERS}
>+  ${BASE_INTERNAL_HEADERS}
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_base
>+  SOURCES
>+    ${BASE_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_dynamic_annotations
>+    absl_spinlock_wait
>+  EXPORT_NAME
>+    base
>+)
>+
>+# throw delegate library
>+set(THROW_DELEGATE_SRC "internal/throw_delegate.cc")
>+
>+absl_library(
>+  TARGET
>+    absl_throw_delegate
>+  SOURCES
>+    ${THROW_DELEGATE_SRC}
>+  PUBLIC_LIBRARIES
>+    ${THROW_DELEGATE_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+  EXPORT_NAME
>+    throw_delegate
>+)
>+
>+if(BUILD_TESTING)
>+  # exception-safety testing library
>+  set(EXCEPTION_SAFETY_TESTING_SRC
>+    "internal/exception_safety_testing.h"
>+    "internal/exception_safety_testing.cc"
>+  )
>+  set(EXCEPTION_SAFETY_TESTING_PUBLIC_LIBRARIES
>+    ${ABSL_TEST_COMMON_LIBRARIES}
>+    absl::base
>+    absl::memory
>+    absl::meta
>+    absl::strings
>+    absl::optional
>+    gtest
>+  )
>+
>+absl_library(
>+  TARGET
>+    absl_base_internal_exception_safety_testing
>+  SOURCES
>+    ${EXCEPTION_SAFETY_TESTING_SRC}
>+  PUBLIC_LIBRARIES
>+    ${EXCEPTION_SAFETY_TESTING_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+endif()
>+
>+
>+# dynamic_annotations library
>+set(DYNAMIC_ANNOTATIONS_SRC "dynamic_annotations.cc")
>+
>+absl_library(
>+  TARGET
>+    absl_dynamic_annotations
>+  SOURCES
>+    ${DYNAMIC_ANNOTATIONS_SRC}
>+)
>+
>+
>+# spinlock_wait library
>+set(SPINLOCK_WAIT_SRC "internal/spinlock_wait.cc")
>+
>+absl_library(
>+  TARGET
>+    absl_spinlock_wait
>+  SOURCES
>+    ${SPINLOCK_WAIT_SRC}
>+)
>+
>+
>+# malloc_internal library
>+list(APPEND MALLOC_INTERNAL_SRC
>+  "internal/low_level_alloc.cc"
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_malloc_internal
>+  SOURCES
>+    ${MALLOC_INTERNAL_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_dynamic_annotations
>+)
>+
>+
>+
>+#
>+## TESTS
>+#
>+
>+# call once test
>+set(ATOMIC_HOOK_TEST_SRC "internal/atomic_hook_test.cc")
>+set(ATOMIC_HOOK_TEST_PUBLIC_LIBRARIES absl::base)
>+
>+absl_test(
>+  TARGET
>+    atomic_hook_test
>+  SOURCES
>+    ${ATOMIC_HOOK_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ATOMIC_HOOK_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# call once test
>+set(CALL_ONCE_TEST_SRC "call_once_test.cc")
>+set(CALL_ONCE_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    call_once_test
>+  SOURCES
>+    ${CALL_ONCE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CALL_ONCE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test bit_cast_test
>+set(BIT_CAST_TEST_SRC "bit_cast_test.cc")
>+
>+absl_test(
>+  TARGET
>+    bit_cast_test
>+  SOURCES
>+    ${BIT_CAST_TEST_SRC}
>+)
>+
>+
>+# test absl_throw_delegate_test
>+set(THROW_DELEGATE_TEST_SRC "throw_delegate_test.cc")
>+set(THROW_DELEGATE_TEST_PUBLIC_LIBRARIES absl::base absl_throw_delegate)
>+
>+absl_test(
>+  TARGET
>+    throw_delegate_test
>+  SOURCES
>+    ${THROW_DELEGATE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${THROW_DELEGATE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test invoke_test
>+set(INVOKE_TEST_SRC "invoke_test.cc")
>+set(INVOKE_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    invoke_test
>+  SOURCES
>+    ${INVOKE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INVOKE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test inline_variable_test
>+list(APPEND INLINE_VARIABLE_TEST_SRC
>+  "internal/inline_variable_testing.h"
>+  "inline_variable_test.cc"
>+  "inline_variable_test_a.cc"
>+  "inline_variable_test_b.cc"
>+)
>+
>+set(INLINE_VARIABLE_TEST_PUBLIC_LIBRARIES absl::base)
>+
>+absl_test(
>+  TARGET
>+    inline_variable_test
>+  SOURCES
>+    ${INLINE_VARIABLE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INLINE_VARIABLE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test spinlock_test_common
>+set(SPINLOCK_TEST_COMMON_SRC "spinlock_test_common.cc")
>+set(SPINLOCK_TEST_COMMON_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    spinlock_test_common
>+  SOURCES
>+    ${SPINLOCK_TEST_COMMON_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SPINLOCK_TEST_COMMON_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test spinlock_test
>+set(SPINLOCK_TEST_SRC "spinlock_test_common.cc")
>+set(SPINLOCK_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    spinlock_test
>+  SOURCES
>+    ${SPINLOCK_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SPINLOCK_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test endian_test
>+set(ENDIAN_TEST_SRC "internal/endian_test.cc")
>+
>+absl_test(
>+  TARGET
>+    endian_test
>+  SOURCES
>+    ${ENDIAN_TEST_SRC}
>+)
>+
>+
>+# test config_test
>+set(CONFIG_TEST_SRC "config_test.cc")
>+set(CONFIG_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+absl_test(
>+  TARGET
>+    config_test
>+  SOURCES
>+    ${CONFIG_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CONFIG_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test raw_logging_test
>+set(RAW_LOGGING_TEST_SRC "raw_logging_test.cc")
>+set(RAW_LOGGING_TEST_PUBLIC_LIBRARIES absl::base absl::strings)
>+
>+absl_test(
>+  TARGET
>+    raw_logging_test
>+  SOURCES
>+    ${RAW_LOGGING_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${RAW_LOGGING_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test sysinfo_test
>+set(SYSINFO_TEST_SRC "internal/sysinfo_test.cc")
>+set(SYSINFO_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    sysinfo_test
>+  SOURCES
>+    ${SYSINFO_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SYSINFO_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test low_level_alloc_test
>+set(LOW_LEVEL_ALLOC_TEST_SRC "internal/low_level_alloc_test.cc")
>+set(LOW_LEVEL_ALLOC_TEST_PUBLIC_LIBRARIES absl::base)
>+
>+absl_test(
>+  TARGET
>+    low_level_alloc_test
>+  SOURCES
>+    ${LOW_LEVEL_ALLOC_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${LOW_LEVEL_ALLOC_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test thread_identity_test
>+set(THREAD_IDENTITY_TEST_SRC "internal/thread_identity_test.cc")
>+set(THREAD_IDENTITY_TEST_PUBLIC_LIBRARIES absl::base absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    thread_identity_test
>+  SOURCES
>+    ${THREAD_IDENTITY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${THREAD_IDENTITY_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+#test exceptions_safety_testing_test
>+set(EXCEPTION_SAFETY_TESTING_TEST_SRC "exception_safety_testing_test.cc")
>+set(EXCEPTION_SAFETY_TESTING_TEST_PUBLIC_LIBRARIES
>+  absl::base
>+  absl_base_internal_exception_safety_testing
>+  absl::memory
>+  absl::meta
>+  absl::strings
>+  absl::optional
>+)
>+
>+absl_test(
>+  TARGET
>+    absl_exception_safety_testing_test
>+  SOURCES
>+    ${EXCEPTION_SAFETY_TESTING_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${EXCEPTION_SAFETY_TESTING_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/attributes.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/attributes.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1883b6d752cc15cd76e079240d0857ce18e8d0a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/attributes.h
>@@ -0,0 +1,568 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This header file defines macros for declaring attributes for functions,
>+// types, and variables.
>+//
>+// These macros are used within Abseil and allow the compiler to optimize, where
>+// applicable, certain function calls.
>+//
>+// This file is used for both C and C++!
>+//
>+// Most macros here are exposing GCC or Clang features, and are stubbed out for
>+// other compilers.
>+//
>+// GCC attributes documentation:
>+//   https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Function-Attributes.html
>+//   https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Variable-Attributes.html
>+//   https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Type-Attributes.html
>+//
>+// Most attributes in this file are already supported by GCC 4.7. However, some
>+// of them are not supported in older version of Clang. Thus, we check
>+// `__has_attribute()` first. If the check fails, we check if we are on GCC and
>+// assume the attribute exists on GCC (which is verified on GCC 4.7).
>+//
>+// -----------------------------------------------------------------------------
>+// Sanitizer Attributes
>+// -----------------------------------------------------------------------------
>+//
>+// Sanitizer-related attributes are not "defined" in this file (and indeed
>+// are not defined as such in any file). To utilize the following
>+// sanitizer-related attributes within your builds, define the following macros
>+// within your build using a `-D` flag, along with the given value for
>+// `-fsanitize`:
>+//
>+//   * `ADDRESS_SANITIZER` + `-fsanitize=address` (Clang, GCC 4.8)
>+//   * `MEMORY_SANITIZER` + `-fsanitize=memory` (Clang-only)
>+//   * `THREAD_SANITIZER + `-fsanitize=thread` (Clang, GCC 4.8+)
>+//   * `UNDEFINED_BEHAVIOR_SANITIZER` + `-fsanitize=undefined` (Clang, GCC 4.9+)
>+//   * `CONTROL_FLOW_INTEGRITY` + -fsanitize=cfi (Clang-only)
>+//
>+// Example:
>+//
>+//   // Enable branches in the Abseil code that are tagged for ASan:
>+//   $ bazel build --copt=-DADDRESS_SANITIZER --copt=-fsanitize=address
>+//     --linkopt=-fsanitize=address *target*
>+//
>+// Since these macro names are only supported by GCC and Clang, we only check
>+// for `__GNUC__` (GCC or Clang) and the above macros.
>+#ifndef ABSL_BASE_ATTRIBUTES_H_
>+#define ABSL_BASE_ATTRIBUTES_H_
>+
>+// ABSL_HAVE_ATTRIBUTE
>+//
>+// A function-like feature checking macro that is a wrapper around
>+// `__has_attribute`, which is defined by GCC 5+ and Clang and evaluates to a
>+// nonzero constant integer if the attribute is supported or 0 if not.
>+//
>+// It evaluates to zero if `__has_attribute` is not defined by the compiler.
>+//
>+// GCC: https://gcc.gnu.org/gcc-5/changes.html
>+// Clang: https://clang.llvm.org/docs/LanguageExtensions.html
>+#ifdef __has_attribute
>+#define ABSL_HAVE_ATTRIBUTE(x) __has_attribute(x)
>+#else
>+#define ABSL_HAVE_ATTRIBUTE(x) 0
>+#endif
>+
>+// ABSL_HAVE_CPP_ATTRIBUTE
>+//
>+// A function-like feature checking macro that accepts C++11 style attributes.
>+// It's a wrapper around `__has_cpp_attribute`, defined by ISO C++ SD-6
>+// (http://en.cppreference.com/w/cpp/experimental/feature_test). If we don't
>+// find `__has_cpp_attribute`, will evaluate to 0.
>+#if defined(__cplusplus) && defined(__has_cpp_attribute)
>+// NOTE: requiring __cplusplus above should not be necessary, but
>+// works around https://bugs.llvm.org/show_bug.cgi?id=23435.
>+#define ABSL_HAVE_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
>+#else
>+#define ABSL_HAVE_CPP_ATTRIBUTE(x) 0
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Function Attributes
>+// -----------------------------------------------------------------------------
>+//
>+// GCC: https://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
>+// Clang: https://clang.llvm.org/docs/AttributeReference.html
>+
>+// ABSL_PRINTF_ATTRIBUTE
>+// ABSL_SCANF_ATTRIBUTE
>+//
>+// Tells the compiler to perform `printf` format std::string checking if the
>+// compiler supports it; see the 'format' attribute in
>+// <http://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Function-Attributes.html>.
>+//
>+// Note: As the GCC manual states, "[s]ince non-static C++ methods
>+// have an implicit 'this' argument, the arguments of such methods
>+// should be counted from two, not one."
>+#if ABSL_HAVE_ATTRIBUTE(format) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_PRINTF_ATTRIBUTE(string_index, first_to_check) \
>+  __attribute__((__format__(__printf__, string_index, first_to_check)))
>+#define ABSL_SCANF_ATTRIBUTE(string_index, first_to_check) \
>+  __attribute__((__format__(__scanf__, string_index, first_to_check)))
>+#else
>+#define ABSL_PRINTF_ATTRIBUTE(string_index, first_to_check)
>+#define ABSL_SCANF_ATTRIBUTE(string_index, first_to_check)
>+#endif
>+
>+// ABSL_ATTRIBUTE_ALWAYS_INLINE
>+// ABSL_ATTRIBUTE_NOINLINE
>+//
>+// Forces functions to either inline or not inline. Introduced in gcc 3.1.
>+#if ABSL_HAVE_ATTRIBUTE(always_inline) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
>+#define ABSL_HAVE_ATTRIBUTE_ALWAYS_INLINE 1
>+#else
>+#define ABSL_ATTRIBUTE_ALWAYS_INLINE
>+#endif
>+
>+#if ABSL_HAVE_ATTRIBUTE(noinline) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_NOINLINE __attribute__((noinline))
>+#define ABSL_HAVE_ATTRIBUTE_NOINLINE 1
>+#else
>+#define ABSL_ATTRIBUTE_NOINLINE
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_TAIL_CALL
>+//
>+// Prevents the compiler from optimizing away stack frames for functions which
>+// end in a call to another function.
>+#if ABSL_HAVE_ATTRIBUTE(disable_tail_calls)
>+#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 1
>+#define ABSL_ATTRIBUTE_NO_TAIL_CALL __attribute__((disable_tail_calls))
>+#elif defined(__GNUC__) && !defined(__clang__)
>+#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 1
>+#define ABSL_ATTRIBUTE_NO_TAIL_CALL \
>+  __attribute__((optimize("no-optimize-sibling-calls")))
>+#else
>+#define ABSL_ATTRIBUTE_NO_TAIL_CALL
>+#define ABSL_HAVE_ATTRIBUTE_NO_TAIL_CALL 0
>+#endif
>+
>+// ABSL_ATTRIBUTE_WEAK
>+//
>+// Tags a function as weak for the purposes of compilation and linking.
>+#if ABSL_HAVE_ATTRIBUTE(weak) || (defined(__GNUC__) && !defined(__clang__))
>+#undef ABSL_ATTRIBUTE_WEAK
>+#define ABSL_ATTRIBUTE_WEAK __attribute__((weak))
>+#define ABSL_HAVE_ATTRIBUTE_WEAK 1
>+#else
>+#define ABSL_ATTRIBUTE_WEAK
>+#define ABSL_HAVE_ATTRIBUTE_WEAK 0
>+#endif
>+
>+// ABSL_ATTRIBUTE_NONNULL
>+//
>+// Tells the compiler either (a) that a particular function parameter
>+// should be a non-null pointer, or (b) that all pointer arguments should
>+// be non-null.
>+//
>+// Note: As the GCC manual states, "[s]ince non-static C++ methods
>+// have an implicit 'this' argument, the arguments of such methods
>+// should be counted from two, not one."
>+//
>+// Args are indexed starting at 1.
>+//
>+// For non-static class member functions, the implicit `this` argument
>+// is arg 1, and the first explicit argument is arg 2. For static class member
>+// functions, there is no implicit `this`, and the first explicit argument is
>+// arg 1.
>+//
>+// Example:
>+//
>+//   /* arg_a cannot be null, but arg_b can */
>+//   void Function(void* arg_a, void* arg_b) ABSL_ATTRIBUTE_NONNULL(1);
>+//
>+//   class C {
>+//     /* arg_a cannot be null, but arg_b can */
>+//     void Method(void* arg_a, void* arg_b) ABSL_ATTRIBUTE_NONNULL(2);
>+//
>+//     /* arg_a cannot be null, but arg_b can */
>+//     static void StaticMethod(void* arg_a, void* arg_b)
>+//     ABSL_ATTRIBUTE_NONNULL(1);
>+//   };
>+//
>+// If no arguments are provided, then all pointer arguments should be non-null.
>+//
>+//  /* No pointer arguments may be null. */
>+//  void Function(void* arg_a, void* arg_b, int arg_c) ABSL_ATTRIBUTE_NONNULL();
>+//
>+// NOTE: The GCC nonnull attribute actually accepts a list of arguments, but
>+// ABSL_ATTRIBUTE_NONNULL does not.
>+#if ABSL_HAVE_ATTRIBUTE(nonnull) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_NONNULL(arg_index) __attribute__((nonnull(arg_index)))
>+#else
>+#define ABSL_ATTRIBUTE_NONNULL(...)
>+#endif
>+
>+// ABSL_ATTRIBUTE_NORETURN
>+//
>+// Tells the compiler that a given function never returns.
>+#if ABSL_HAVE_ATTRIBUTE(noreturn) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_NORETURN __attribute__((noreturn))
>+#elif defined(_MSC_VER)
>+#define ABSL_ATTRIBUTE_NORETURN __declspec(noreturn)
>+#else
>+#define ABSL_ATTRIBUTE_NORETURN
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS
>+//
>+// Tells the AddressSanitizer (or other memory testing tools) to ignore a given
>+// function. Useful for cases when a function reads random locations on stack,
>+// calls _exit from a cloned subprocess, deliberately accesses buffer
>+// out of bounds or does other scary things with memory.
>+// NOTE: GCC supports AddressSanitizer(asan) since 4.8.
>+// https://gcc.gnu.org/gcc-4.8/changes.html
>+#if defined(__GNUC__) && defined(ADDRESS_SANITIZER)
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
>+#else
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY
>+//
>+// Tells the  MemorySanitizer to relax the handling of a given function. All
>+// "Use of uninitialized value" warnings from such functions will be suppressed,
>+// and all values loaded from memory will be considered fully initialized.
>+// This attribute is similar to the ADDRESS_SANITIZER attribute above, but deals
>+// with initialized-ness rather than addressability issues.
>+// NOTE: MemorySanitizer(msan) is supported by Clang but not GCC.
>+#if defined(__GNUC__) && defined(MEMORY_SANITIZER)
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY __attribute__((no_sanitize_memory))
>+#else
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_SANITIZE_THREAD
>+//
>+// Tells the ThreadSanitizer to not instrument a given function.
>+// NOTE: GCC supports ThreadSanitizer(tsan) since 4.8.
>+// https://gcc.gnu.org/gcc-4.8/changes.html
>+#if defined(__GNUC__) && defined(THREAD_SANITIZER)
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread))
>+#else
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_THREAD
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED
>+//
>+// Tells the UndefinedSanitizer to ignore a given function. Useful for cases
>+// where certain behavior (eg. division by zero) is being used intentionally.
>+// NOTE: GCC supports UndefinedBehaviorSanitizer(ubsan) since 4.9.
>+// https://gcc.gnu.org/gcc-4.9/changes.html
>+#if defined(__GNUC__) && \
>+    (defined(UNDEFINED_BEHAVIOR_SANITIZER) || defined(ADDRESS_SANITIZER))
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED \
>+  __attribute__((no_sanitize("undefined")))
>+#else
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_UNDEFINED
>+#endif
>+
>+// ABSL_ATTRIBUTE_NO_SANITIZE_CFI
>+//
>+// Tells the ControlFlowIntegrity sanitizer to not instrument a given function.
>+// See https://clang.llvm.org/docs/ControlFlowIntegrity.html for details.
>+#if defined(__GNUC__) && defined(CONTROL_FLOW_INTEGRITY)
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_CFI __attribute__((no_sanitize("cfi")))
>+#else
>+#define ABSL_ATTRIBUTE_NO_SANITIZE_CFI
>+#endif
>+
>+// ABSL_ATTRIBUTE_RETURNS_NONNULL
>+//
>+// Tells the compiler that a particular function never returns a null pointer.
>+#if ABSL_HAVE_ATTRIBUTE(returns_nonnull) || \
>+    (defined(__GNUC__) && \
>+     (__GNUC__ > 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) && \
>+     !defined(__clang__))
>+#define ABSL_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull))
>+#else
>+#define ABSL_ATTRIBUTE_RETURNS_NONNULL
>+#endif
>+
>+// ABSL_HAVE_ATTRIBUTE_SECTION
>+//
>+// Indicates whether labeled sections are supported. Labeled sections are not
>+// supported on Darwin/iOS.
>+#ifdef ABSL_HAVE_ATTRIBUTE_SECTION
>+#error ABSL_HAVE_ATTRIBUTE_SECTION cannot be directly set
>+#elif (ABSL_HAVE_ATTRIBUTE(section) ||                \
>+       (defined(__GNUC__) && !defined(__clang__))) && \
>+    !defined(__APPLE__)
>+#define ABSL_HAVE_ATTRIBUTE_SECTION 1
>+
>+// ABSL_ATTRIBUTE_SECTION
>+//
>+// Tells the compiler/linker to put a given function into a section and define
>+// `__start_ ## name` and `__stop_ ## name` symbols to bracket the section.
>+// This functionality is supported by GNU linker.  Any function annotated with
>+// `ABSL_ATTRIBUTE_SECTION` must not be inlined, or it will be placed into
>+// whatever section its caller is placed into.
>+//
>+#ifndef ABSL_ATTRIBUTE_SECTION
>+#define ABSL_ATTRIBUTE_SECTION(name) \
>+  __attribute__((section(#name))) __attribute__((noinline))
>+#endif
>+
>+
>+// ABSL_ATTRIBUTE_SECTION_VARIABLE
>+//
>+// Tells the compiler/linker to put a given variable into a section and define
>+// `__start_ ## name` and `__stop_ ## name` symbols to bracket the section.
>+// This functionality is supported by GNU linker.
>+#ifndef ABSL_ATTRIBUTE_SECTION_VARIABLE
>+#define ABSL_ATTRIBUTE_SECTION_VARIABLE(name) __attribute__((section(#name)))
>+#endif
>+
>+// ABSL_DECLARE_ATTRIBUTE_SECTION_VARS
>+//
>+// A weak section declaration to be used as a global declaration
>+// for ABSL_ATTRIBUTE_SECTION_START|STOP(name) to compile and link
>+// even without functions with ABSL_ATTRIBUTE_SECTION(name).
>+// ABSL_DEFINE_ATTRIBUTE_SECTION should be in the exactly one file; it's
>+// a no-op on ELF but not on Mach-O.
>+//
>+#ifndef ABSL_DECLARE_ATTRIBUTE_SECTION_VARS
>+#define ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name) \
>+  extern char __start_##name[] ABSL_ATTRIBUTE_WEAK;    \
>+  extern char __stop_##name[] ABSL_ATTRIBUTE_WEAK
>+#endif
>+#ifndef ABSL_DEFINE_ATTRIBUTE_SECTION_VARS
>+#define ABSL_INIT_ATTRIBUTE_SECTION_VARS(name)
>+#define ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(name)
>+#endif
>+
>+// ABSL_ATTRIBUTE_SECTION_START
>+//
>+// Returns `void*` pointers to start/end of a section of code with
>+// functions having ABSL_ATTRIBUTE_SECTION(name).
>+// Returns 0 if no such functions exist.
>+// One must ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name) for this to compile and
>+// link.
>+//
>+#define ABSL_ATTRIBUTE_SECTION_START(name) \
>+  (reinterpret_cast<void *>(__start_##name))
>+#define ABSL_ATTRIBUTE_SECTION_STOP(name) \
>+  (reinterpret_cast<void *>(__stop_##name))
>+
>+#else  // !ABSL_HAVE_ATTRIBUTE_SECTION
>+
>+#define ABSL_HAVE_ATTRIBUTE_SECTION 0
>+
>+// provide dummy definitions
>+#define ABSL_ATTRIBUTE_SECTION(name)
>+#define ABSL_ATTRIBUTE_SECTION_VARIABLE(name)
>+#define ABSL_INIT_ATTRIBUTE_SECTION_VARS(name)
>+#define ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(name)
>+#define ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(name)
>+#define ABSL_ATTRIBUTE_SECTION_START(name) (reinterpret_cast<void *>(0))
>+#define ABSL_ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast<void *>(0))
>+
>+#endif  // ABSL_ATTRIBUTE_SECTION
>+
>+// ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
>+//
>+// Support for aligning the stack on 32-bit x86.
>+#if ABSL_HAVE_ATTRIBUTE(force_align_arg_pointer) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+#if defined(__i386__)
>+#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC \
>+  __attribute__((force_align_arg_pointer))
>+#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
>+#elif defined(__x86_64__)
>+#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (1)
>+#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
>+#else  // !__i386__ && !__x86_64
>+#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
>+#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
>+#endif  // __i386__
>+#else
>+#define ABSL_ATTRIBUTE_STACK_ALIGN_FOR_OLD_LIBC
>+#define ABSL_REQUIRE_STACK_ALIGN_TRAMPOLINE (0)
>+#endif
>+
>+// ABSL_MUST_USE_RESULT
>+//
>+// Tells the compiler to warn about unused return values for functions declared
>+// with this macro. The macro must appear as the very first part of a function
>+// declaration or definition:
>+//
>+// Example:
>+//
>+//   ABSL_MUST_USE_RESULT Sprocket* AllocateSprocket();
>+//
>+// This placement has the broadest compatibility with GCC, Clang, and MSVC, with
>+// both defs and decls, and with GCC-style attributes, MSVC declspec, C++11
>+// and C++17 attributes.
>+//
>+// ABSL_MUST_USE_RESULT allows using cast-to-void to suppress the unused result
>+// warning. For that, warn_unused_result is used only for clang but not for gcc.
>+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425
>+//
>+// Note: past advice was to place the macro after the argument list.
>+#if ABSL_HAVE_ATTRIBUTE(nodiscard)
>+#define ABSL_MUST_USE_RESULT [[nodiscard]]
>+#elif defined(__clang__) && ABSL_HAVE_ATTRIBUTE(warn_unused_result)
>+#define ABSL_MUST_USE_RESULT __attribute__((warn_unused_result))
>+#else
>+#define ABSL_MUST_USE_RESULT
>+#endif
>+
>+// ABSL_ATTRIBUTE_HOT, ABSL_ATTRIBUTE_COLD
>+//
>+// Tells GCC that a function is hot or cold. GCC can use this information to
>+// improve static analysis, i.e. a conditional branch to a cold function
>+// is likely to be not-taken.
>+// This annotation is used for function declarations.
>+//
>+// Example:
>+//
>+//   int foo() ABSL_ATTRIBUTE_HOT;
>+#if ABSL_HAVE_ATTRIBUTE(hot) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_HOT __attribute__((hot))
>+#else
>+#define ABSL_ATTRIBUTE_HOT
>+#endif
>+
>+#if ABSL_HAVE_ATTRIBUTE(cold) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_COLD __attribute__((cold))
>+#else
>+#define ABSL_ATTRIBUTE_COLD
>+#endif
>+
>+// ABSL_XRAY_ALWAYS_INSTRUMENT, ABSL_XRAY_NEVER_INSTRUMENT, ABSL_XRAY_LOG_ARGS
>+//
>+// We define the ABSL_XRAY_ALWAYS_INSTRUMENT and ABSL_XRAY_NEVER_INSTRUMENT
>+// macro used as an attribute to mark functions that must always or never be
>+// instrumented by XRay. Currently, this is only supported in Clang/LLVM.
>+//
>+// For reference on the LLVM XRay instrumentation, see
>+// http://llvm.org/docs/XRay.html.
>+//
>+// A function with the XRAY_ALWAYS_INSTRUMENT macro attribute in its declaration
>+// will always get the XRay instrumentation sleds. These sleds may introduce
>+// some binary size and runtime overhead and must be used sparingly.
>+//
>+// These attributes only take effect when the following conditions are met:
>+//
>+//   * The file/target is built in at least C++11 mode, with a Clang compiler
>+//     that supports XRay attributes.
>+//   * The file/target is built with the -fxray-instrument flag set for the
>+//     Clang/LLVM compiler.
>+//   * The function is defined in the translation unit (the compiler honors the
>+//     attribute in either the definition or the declaration, and must match).
>+//
>+// There are cases when, even when building with XRay instrumentation, users
>+// might want to control specifically which functions are instrumented for a
>+// particular build using special-case lists provided to the compiler. These
>+// special case lists are provided to Clang via the
>+// -fxray-always-instrument=... and -fxray-never-instrument=... flags. The
>+// attributes in source take precedence over these special-case lists.
>+//
>+// To disable the XRay attributes at build-time, users may define
>+// ABSL_NO_XRAY_ATTRIBUTES. Do NOT define ABSL_NO_XRAY_ATTRIBUTES on specific
>+// packages/targets, as this may lead to conflicting definitions of functions at
>+// link-time.
>+//
>+#if ABSL_HAVE_CPP_ATTRIBUTE(clang::xray_always_instrument) && \
>+    !defined(ABSL_NO_XRAY_ATTRIBUTES)
>+#define ABSL_XRAY_ALWAYS_INSTRUMENT [[clang::xray_always_instrument]]
>+#define ABSL_XRAY_NEVER_INSTRUMENT [[clang::xray_never_instrument]]
>+#if ABSL_HAVE_CPP_ATTRIBUTE(clang::xray_log_args)
>+#define ABSL_XRAY_LOG_ARGS(N) \
>+    [[clang::xray_always_instrument, clang::xray_log_args(N)]]
>+#else
>+#define ABSL_XRAY_LOG_ARGS(N) [[clang::xray_always_instrument]]
>+#endif
>+#else
>+#define ABSL_XRAY_ALWAYS_INSTRUMENT
>+#define ABSL_XRAY_NEVER_INSTRUMENT
>+#define ABSL_XRAY_LOG_ARGS(N)
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Variable Attributes
>+// -----------------------------------------------------------------------------
>+
>+// ABSL_ATTRIBUTE_UNUSED
>+//
>+// Prevents the compiler from complaining about or optimizing away variables
>+// that appear unused.
>+#if ABSL_HAVE_ATTRIBUTE(unused) || (defined(__GNUC__) && !defined(__clang__))
>+#undef ABSL_ATTRIBUTE_UNUSED
>+#define ABSL_ATTRIBUTE_UNUSED __attribute__((__unused__))
>+#else
>+#define ABSL_ATTRIBUTE_UNUSED
>+#endif
>+
>+// ABSL_ATTRIBUTE_INITIAL_EXEC
>+//
>+// Tells the compiler to use "initial-exec" mode for a thread-local variable.
>+// See http://people.redhat.com/drepper/tls.pdf for the gory details.
>+#if ABSL_HAVE_ATTRIBUTE(tls_model) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_INITIAL_EXEC __attribute__((tls_model("initial-exec")))
>+#else
>+#define ABSL_ATTRIBUTE_INITIAL_EXEC
>+#endif
>+
>+// ABSL_ATTRIBUTE_PACKED
>+//
>+// Prevents the compiler from padding a structure to natural alignment
>+#if ABSL_HAVE_ATTRIBUTE(packed) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_PACKED __attribute__((__packed__))
>+#else
>+#define ABSL_ATTRIBUTE_PACKED
>+#endif
>+
>+// ABSL_ATTRIBUTE_FUNC_ALIGN
>+//
>+// Tells the compiler to align the function start at least to certain
>+// alignment boundary
>+#if ABSL_HAVE_ATTRIBUTE(aligned) || (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_ATTRIBUTE_FUNC_ALIGN(bytes) __attribute__((aligned(bytes)))
>+#else
>+#define ABSL_ATTRIBUTE_FUNC_ALIGN(bytes)
>+#endif
>+
>+// ABSL_CONST_INIT
>+//
>+// A variable declaration annotated with the `ABSL_CONST_INIT` attribute will
>+// not compile (on supported platforms) unless the variable has a constant
>+// initializer. This is useful for variables with static and thread storage
>+// duration, because it guarantees that they will not suffer from the so-called
>+// "static init order fiasco".  Prefer to put this attribute on the most visible
>+// declaration of the variable, if there's more than one, because code that
>+// accesses the variable can then use the attribute for optimization.
>+//
>+// Example:
>+//
>+//   class MyClass {
>+//    public:
>+//     ABSL_CONST_INIT static MyType my_var;
>+//   };
>+//
>+//   MyType MyClass::my_var = MakeMyType(...);
>+//
>+// Note that this attribute is redundant if the variable is declared constexpr.
>+#if ABSL_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization)
>+// NOLINTNEXTLINE(whitespace/braces)
>+#define ABSL_CONST_INIT [[clang::require_constant_initialization]]
>+#else
>+#define ABSL_CONST_INIT
>+#endif  // ABSL_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization)
>+
>+#endif  // ABSL_BASE_ATTRIBUTES_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/bit_cast_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/bit_cast_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..8cd878d756e3d87c2c182f4a2ac22bb0e46f9e26
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/bit_cast_test.cc
>@@ -0,0 +1,107 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit test for bit_cast template.
>+
>+#include <cstdint>
>+#include <cstring>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/casts.h"
>+#include "absl/base/macros.h"
>+
>+namespace absl {
>+namespace {
>+
>+template <int N>
>+struct marshall { char buf[N]; };
>+
>+template <typename T>
>+void TestMarshall(const T values[], int num_values) {
>+  for (int i = 0; i < num_values; ++i) {
>+    T t0 = values[i];
>+    marshall<sizeof(T)> m0 = absl::bit_cast<marshall<sizeof(T)> >(t0);
>+    T t1 = absl::bit_cast<T>(m0);
>+    marshall<sizeof(T)> m1 = absl::bit_cast<marshall<sizeof(T)> >(t1);
>+    ASSERT_EQ(0, memcmp(&t0, &t1, sizeof(T)));
>+    ASSERT_EQ(0, memcmp(&m0, &m1, sizeof(T)));
>+  }
>+}
>+
>+// Convert back and forth to an integral type.  The C++ standard does
>+// not guarantee this will work, but we test that this works on all the
>+// platforms we support.
>+//
>+// Likewise, we below make assumptions about sizeof(float) and
>+// sizeof(double) which the standard does not guarantee, but which hold on the
>+// platforms we support.
>+
>+template <typename T, typename I>
>+void TestIntegral(const T values[], int num_values) {
>+  for (int i = 0; i < num_values; ++i) {
>+    T t0 = values[i];
>+    I i0 = absl::bit_cast<I>(t0);
>+    T t1 = absl::bit_cast<T>(i0);
>+    I i1 = absl::bit_cast<I>(t1);
>+    ASSERT_EQ(0, memcmp(&t0, &t1, sizeof(T)));
>+    ASSERT_EQ(i0, i1);
>+  }
>+}
>+
>+TEST(BitCast, Bool) {
>+  static const bool bool_list[] = { false, true };
>+  TestMarshall<bool>(bool_list, ABSL_ARRAYSIZE(bool_list));
>+}
>+
>+TEST(BitCast, Int32) {
>+  static const int32_t int_list[] =
>+    { 0, 1, 100, 2147483647, -1, -100, -2147483647, -2147483647-1 };
>+  TestMarshall<int32_t>(int_list, ABSL_ARRAYSIZE(int_list));
>+}
>+
>+TEST(BitCast, Int64) {
>+  static const int64_t int64_list[] =
>+    { 0, 1, 1LL << 40, -1, -(1LL<<40) };
>+  TestMarshall<int64_t>(int64_list, ABSL_ARRAYSIZE(int64_list));
>+}
>+
>+TEST(BitCast, Uint64) {
>+  static const uint64_t uint64_list[] =
>+    { 0, 1, 1LLU << 40, 1LLU << 63 };
>+  TestMarshall<uint64_t>(uint64_list, ABSL_ARRAYSIZE(uint64_list));
>+}
>+
>+TEST(BitCast, Float) {
>+  static const float float_list[] =
>+    { 0.0f, 1.0f, -1.0f, 10.0f, -10.0f,
>+      1e10f, 1e20f, 1e-10f, 1e-20f,
>+      2.71828f, 3.14159f };
>+  TestMarshall<float>(float_list, ABSL_ARRAYSIZE(float_list));
>+  TestIntegral<float, int>(float_list, ABSL_ARRAYSIZE(float_list));
>+  TestIntegral<float, unsigned>(float_list, ABSL_ARRAYSIZE(float_list));
>+}
>+
>+TEST(BitCast, Double) {
>+  static const double double_list[] =
>+    { 0.0, 1.0, -1.0, 10.0, -10.0,
>+      1e10, 1e100, 1e-10, 1e-100,
>+      2.718281828459045,
>+      3.141592653589793238462643383279502884197169399375105820974944 };
>+  TestMarshall<double>(double_list, ABSL_ARRAYSIZE(double_list));
>+  TestIntegral<double, int64_t>(double_list, ABSL_ARRAYSIZE(double_list));
>+  TestIntegral<double, uint64_t>(double_list, ABSL_ARRAYSIZE(double_list));
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..532ee2e38bb5201e8e55cf7d834a64ab4d1bd1cf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once.h
>@@ -0,0 +1,216 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: call_once.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file provides an Abseil version of `std::call_once` for invoking
>+// a given function at most once, across all threads. This Abseil version is
>+// faster than the C++11 version and incorporates the C++17 argument-passing
>+// fix, so that (for example) non-const references may be passed to the invoked
>+// function.
>+
>+#ifndef ABSL_BASE_CALL_ONCE_H_
>+#define ABSL_BASE_CALL_ONCE_H_
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cstdint>
>+#include <type_traits>
>+
>+#include "absl/base/internal/invoke.h"
>+#include "absl/base/internal/low_level_scheduling.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/internal/spinlock_wait.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+
>+class once_flag;
>+
>+namespace base_internal {
>+std::atomic<uint32_t>* ControlWord(absl::once_flag* flag);
>+}  // namespace base_internal
>+
>+// call_once()
>+//
>+// For all invocations using a given `once_flag`, invokes a given `fn` exactly
>+// once across all threads. The first call to `call_once()` with a particular
>+// `once_flag` argument (that does not throw an exception) will run the
>+// specified function with the provided `args`; other calls with the same
>+// `once_flag` argument will not run the function, but will wait
>+// for the provided function to finish running (if it is still running).
>+//
>+// This mechanism provides a safe, simple, and fast mechanism for one-time
>+// initialization in a multi-threaded process.
>+//
>+// Example:
>+//
>+// class MyInitClass {
>+//  public:
>+//  ...
>+//  mutable absl::once_flag once_;
>+//
>+//  MyInitClass* init() const {
>+//    absl::call_once(once_, &MyInitClass::Init, this);
>+//    return ptr_;
>+//  }
>+//
>+template <typename Callable, typename... Args>
>+void call_once(absl::once_flag& flag, Callable&& fn, Args&&... args);
>+
>+// once_flag
>+//
>+// Objects of this type are used to distinguish calls to `call_once()` and
>+// ensure the provided function is only invoked once across all threads. This
>+// type is not copyable or movable. However, it has a `constexpr`
>+// constructor, and is safe to use as a namespace-scoped global variable.
>+class once_flag {
>+ public:
>+  constexpr once_flag() : control_(0) {}
>+  once_flag(const once_flag&) = delete;
>+  once_flag& operator=(const once_flag&) = delete;
>+
>+ private:
>+  friend std::atomic<uint32_t>* base_internal::ControlWord(once_flag* flag);
>+  std::atomic<uint32_t> control_;
>+};
>+
>+//------------------------------------------------------------------------------
>+// End of public interfaces.
>+// Implementation details follow.
>+//------------------------------------------------------------------------------
>+
>+namespace base_internal {
>+
>+// Like call_once, but uses KERNEL_ONLY scheduling. Intended to be used to
>+// initialize entities used by the scheduler implementation.
>+template <typename Callable, typename... Args>
>+void LowLevelCallOnce(absl::once_flag* flag, Callable&& fn, Args&&... args);
>+
>+// Disables scheduling while on stack when scheduling mode is non-cooperative.
>+// No effect for cooperative scheduling modes.
>+class SchedulingHelper {
>+ public:
>+  explicit SchedulingHelper(base_internal::SchedulingMode mode) : mode_(mode) {
>+    if (mode_ == base_internal::SCHEDULE_KERNEL_ONLY) {
>+      guard_result_ = base_internal::SchedulingGuard::DisableRescheduling();
>+    }
>+  }
>+
>+  ~SchedulingHelper() {
>+    if (mode_ == base_internal::SCHEDULE_KERNEL_ONLY) {
>+      base_internal::SchedulingGuard::EnableRescheduling(guard_result_);
>+    }
>+  }
>+
>+ private:
>+  base_internal::SchedulingMode mode_;
>+  bool guard_result_;
>+};
>+
>+// Bit patterns for call_once state machine values.  Internal implementation
>+// detail, not for use by clients.
>+//
>+// The bit patterns are arbitrarily chosen from unlikely values, to aid in
>+// debugging.  However, kOnceInit must be 0, so that a zero-initialized
>+// once_flag will be valid for immediate use.
>+enum {
>+  kOnceInit = 0,
>+  kOnceRunning = 0x65C2937B,
>+  kOnceWaiter = 0x05A308D2,
>+  // A very small constant is chosen for kOnceDone so that it fit in a single
>+  // compare with immediate instruction for most common ISAs.  This is verified
>+  // for x86, POWER and ARM.
>+  kOnceDone = 221,    // Random Number
>+};
>+
>+template <typename Callable, typename... Args>
>+void CallOnceImpl(std::atomic<uint32_t>* control,
>+                  base_internal::SchedulingMode scheduling_mode, Callable&& fn,
>+                  Args&&... args) {
>+#ifndef NDEBUG
>+  {
>+    uint32_t old_control = control->load(std::memory_order_acquire);
>+    if (old_control != kOnceInit &&
>+        old_control != kOnceRunning &&
>+        old_control != kOnceWaiter &&
>+        old_control != kOnceDone) {
>+      ABSL_RAW_LOG(
>+          FATAL,
>+          "Unexpected value for control word: %lx. Either the control word "
>+          "has non-static storage duration (where GoogleOnceDynamic might "
>+          "be appropriate), or there's been a memory corruption.",
>+          static_cast<unsigned long>(old_control)); // NOLINT
>+    }
>+  }
>+#endif  // NDEBUG
>+  static const base_internal::SpinLockWaitTransition trans[] = {
>+      {kOnceInit, kOnceRunning, true},
>+      {kOnceRunning, kOnceWaiter, false},
>+      {kOnceDone, kOnceDone, true}};
>+
>+  // Must do this before potentially modifying control word's state.
>+  base_internal::SchedulingHelper maybe_disable_scheduling(scheduling_mode);
>+  // Short circuit the simplest case to avoid procedure call overhead.
>+  uint32_t old_control = kOnceInit;
>+  if (control->compare_exchange_strong(old_control, kOnceRunning,
>+                                       std::memory_order_acquire,
>+                                       std::memory_order_relaxed) ||
>+      base_internal::SpinLockWait(control, ABSL_ARRAYSIZE(trans), trans,
>+                                  scheduling_mode) == kOnceInit) {
>+    base_internal::Invoke(std::forward<Callable>(fn),
>+                          std::forward<Args>(args)...);
>+    old_control = control->load(std::memory_order_relaxed);
>+    control->store(base_internal::kOnceDone, std::memory_order_release);
>+    if (old_control == base_internal::kOnceWaiter) {
>+      base_internal::SpinLockWake(control, true);
>+    }
>+  }  // else *control is already kOnceDone
>+}
>+
>+inline std::atomic<uint32_t>* ControlWord(once_flag* flag) {
>+  return &flag->control_;
>+}
>+
>+template <typename Callable, typename... Args>
>+void LowLevelCallOnce(absl::once_flag* flag, Callable&& fn, Args&&... args) {
>+  std::atomic<uint32_t>* once = base_internal::ControlWord(flag);
>+  uint32_t s = once->load(std::memory_order_acquire);
>+  if (ABSL_PREDICT_FALSE(s != base_internal::kOnceDone)) {
>+    base_internal::CallOnceImpl(once, base_internal::SCHEDULE_KERNEL_ONLY,
>+                                std::forward<Callable>(fn),
>+                                std::forward<Args>(args)...);
>+  }
>+}
>+
>+}  // namespace base_internal
>+
>+template <typename Callable, typename... Args>
>+void call_once(absl::once_flag& flag, Callable&& fn, Args&&... args) {
>+  std::atomic<uint32_t>* once = base_internal::ControlWord(&flag);
>+  uint32_t s = once->load(std::memory_order_acquire);
>+  if (ABSL_PREDICT_FALSE(s != base_internal::kOnceDone)) {
>+    base_internal::CallOnceImpl(
>+        once, base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL,
>+        std::forward<Callable>(fn), std::forward<Args>(args)...);
>+  }
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_CALL_ONCE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cd58ee19f08e6c51a2b5867fda8521bda8cbe306
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/call_once_test.cc
>@@ -0,0 +1,102 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/call_once.h"
>+
>+#include <thread>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+namespace {
>+
>+absl::once_flag once;
>+Mutex counters_mu;
>+
>+int running_thread_count GUARDED_BY(counters_mu) = 0;
>+int call_once_invoke_count GUARDED_BY(counters_mu) = 0;
>+int call_once_finished_count GUARDED_BY(counters_mu) = 0;
>+int call_once_return_count GUARDED_BY(counters_mu) = 0;
>+bool done_blocking GUARDED_BY(counters_mu) = false;
>+
>+// Function to be called from absl::call_once.  Waits for a notification.
>+void WaitAndIncrement() {
>+  counters_mu.Lock();
>+  ++call_once_invoke_count;
>+  counters_mu.Unlock();
>+
>+  counters_mu.LockWhen(Condition(&done_blocking));
>+  ++call_once_finished_count;
>+  counters_mu.Unlock();
>+}
>+
>+void ThreadBody() {
>+  counters_mu.Lock();
>+  ++running_thread_count;
>+  counters_mu.Unlock();
>+
>+  absl::call_once(once, WaitAndIncrement);
>+
>+  counters_mu.Lock();
>+  ++call_once_return_count;
>+  counters_mu.Unlock();
>+}
>+
>+// Returns true if all threads are set up for the test.
>+bool ThreadsAreSetup(void*) EXCLUSIVE_LOCKS_REQUIRED(counters_mu) {
>+  // All ten threads must be running, and WaitAndIncrement should be blocked.
>+  return running_thread_count == 10 && call_once_invoke_count == 1;
>+}
>+
>+TEST(CallOnceTest, ExecutionCount) {
>+  std::vector<std::thread> threads;
>+
>+  // Start 10 threads all calling call_once on the same once_flag.
>+  for (int i = 0; i < 10; ++i) {
>+    threads.emplace_back(ThreadBody);
>+  }
>+
>+
>+  // Wait until all ten threads have started, and WaitAndIncrement has been
>+  // invoked.
>+  counters_mu.LockWhen(Condition(ThreadsAreSetup, nullptr));
>+
>+  // WaitAndIncrement should have been invoked by exactly one call_once()
>+  // instance.  That thread should be blocking on a notification, and all other
>+  // call_once instances should be blocking as well.
>+  EXPECT_EQ(call_once_invoke_count, 1);
>+  EXPECT_EQ(call_once_finished_count, 0);
>+  EXPECT_EQ(call_once_return_count, 0);
>+
>+  // Allow WaitAndIncrement to finish executing.  Once it does, the other
>+  // call_once waiters will be unblocked.
>+  done_blocking = true;
>+  counters_mu.Unlock();
>+
>+  for (std::thread& thread : threads) {
>+    thread.join();
>+  }
>+
>+  counters_mu.Lock();
>+  EXPECT_EQ(call_once_invoke_count, 1);
>+  EXPECT_EQ(call_once_finished_count, 1);
>+  EXPECT_EQ(call_once_return_count, 10);
>+  counters_mu.Unlock();
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/casts.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/casts.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..20fd34da70105d6fc7df55988c89b6ece4b7e33e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/casts.h
>@@ -0,0 +1,189 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: casts.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines casting templates to fit use cases not covered by
>+// the standard casts provided in the C++ standard. As with all cast operations,
>+// use these with caution and only if alternatives do not exist.
>+
>+#ifndef ABSL_BASE_CASTS_H_
>+#define ABSL_BASE_CASTS_H_
>+
>+#include <cstring>
>+#include <memory>
>+#include <type_traits>
>+
>+#include "absl/base/internal/identity.h"
>+#include "absl/base/macros.h"
>+
>+namespace absl {
>+
>+namespace internal_casts {
>+
>+// NOTE: Not a fully compliant implementation of `std::is_trivially_copyable`.
>+// TODO(calabrese) Branch on implementations that directly provide
>+// `std::is_trivially_copyable`, create a more rigorous workaround, and publicly
>+// expose in meta/type_traits.
>+template <class T>
>+struct is_trivially_copyable
>+    : std::integral_constant<
>+          bool, std::is_destructible<T>::value&& __has_trivial_destructor(T) &&
>+                    __has_trivial_copy(T) && __has_trivial_assign(T)> {};
>+
>+template <class Dest, class Source>
>+struct is_bitcastable
>+    : std::integral_constant<bool,
>+                             sizeof(Dest) == sizeof(Source) &&
>+                                 is_trivially_copyable<Source>::value &&
>+                                 is_trivially_copyable<Dest>::value &&
>+                                 std::is_default_constructible<Dest>::value> {};
>+
>+}  // namespace internal_casts
>+
>+// implicit_cast()
>+//
>+// Performs an implicit conversion between types following the language
>+// rules for implicit conversion; if an implicit conversion is otherwise
>+// allowed by the language in the given context, this function performs such an
>+// implicit conversion.
>+//
>+// Example:
>+//
>+//   // If the context allows implicit conversion:
>+//   From from;
>+//   To to = from;
>+//
>+//   // Such code can be replaced by:
>+//   implicit_cast<To>(from);
>+//
>+// An `implicit_cast()` may also be used to annotate numeric type conversions
>+// that, although safe, may produce compiler warnings (such as `long` to `int`).
>+// Additionally, an `implicit_cast()` is also useful within return statements to
>+// indicate a specific implicit conversion is being undertaken.
>+//
>+// Example:
>+//
>+//   return implicit_cast<double>(size_in_bytes) / capacity_;
>+//
>+// Annotating code with `implicit_cast()` allows you to explicitly select
>+// particular overloads and template instantiations, while providing a safer
>+// cast than `reinterpret_cast()` or `static_cast()`.
>+//
>+// Additionally, an `implicit_cast()` can be used to allow upcasting within a
>+// type hierarchy where incorrect use of `static_cast()` could accidentally
>+// allow downcasting.
>+//
>+// Finally, an `implicit_cast()` can be used to perform implicit conversions
>+// from unrelated types that otherwise couldn't be implicitly cast directly;
>+// C++ will normally only implicitly cast "one step" in such conversions.
>+//
>+// That is, if C is a type which can be implicitly converted to B, with B being
>+// a type that can be implicitly converted to A, an `implicit_cast()` can be
>+// used to convert C to B (which the compiler can then implicitly convert to A
>+// using language rules).
>+//
>+// Example:
>+//
>+//   // Assume an object C is convertible to B, which is implicitly convertible
>+//   // to A
>+//   A a = implicit_cast<B>(C);
>+//
>+// Such implicit cast chaining may be useful within template logic.
>+template <typename To>
>+inline To implicit_cast(typename absl::internal::identity_t<To> to) {
>+  return to;
>+}
>+
>+// bit_cast()
>+//
>+// Performs a bitwise cast on a type without changing the underlying bit
>+// representation of that type's value. The two types must be of the same size
>+// and both types must be trivially copyable. As with most casts, use with
>+// caution. A `bit_cast()` might be needed when you need to temporarily treat a
>+// type as some other type, such as in the following cases:
>+//
>+//    * Serialization (casting temporarily to `char *` for those purposes is
>+//      always allowed by the C++ standard)
>+//    * Managing the individual bits of a type within mathematical operations
>+//      that are not normally accessible through that type
>+//    * Casting non-pointer types to pointer types (casting the other way is
>+//      allowed by `reinterpret_cast()` but round-trips cannot occur the other
>+//      way).
>+//
>+// Example:
>+//
>+//   float f = 3.14159265358979;
>+//   int i = bit_cast<int32_t>(f);
>+//   // i = 0x40490fdb
>+//
>+// Casting non-pointer types to pointer types and then dereferencing them
>+// traditionally produces undefined behavior.
>+//
>+// Example:
>+//
>+//   // WRONG
>+//   float f = 3.14159265358979;            // WRONG
>+//   int i = * reinterpret_cast<int*>(&f);  // WRONG
>+//
>+// The address-casting method produces undefined behavior according to the ISO
>+// C++ specification section [basic.lval]. Roughly, this section says: if an
>+// object in memory has one type, and a program accesses it with a different
>+// type, the result is undefined behavior for most values of "different type".
>+//
>+// Such casting results in type punning: holding an object in memory of one type
>+// and reading its bits back using a different type. A `bit_cast()` avoids this
>+// issue by implementing its casts using `memcpy()`, which avoids introducing
>+// this undefined behavior.
>+//
>+// NOTE: The requirements here are more strict than the bit_cast of standard
>+// proposal p0476 due to the need for workarounds and lack of intrinsics.
>+// Specifically, this implementation also requires `Dest` to be
>+// default-constructible.
>+template <
>+    typename Dest, typename Source,
>+    typename std::enable_if<internal_casts::is_bitcastable<Dest, Source>::value,
>+                            int>::type = 0>
>+inline Dest bit_cast(const Source& source) {
>+  Dest dest;
>+  memcpy(static_cast<void*>(std::addressof(dest)),
>+         static_cast<const void*>(std::addressof(source)), sizeof(dest));
>+  return dest;
>+}
>+
>+// NOTE: This overload is only picked if the requirements of bit_cast are not
>+// met. It is therefore UB, but is provided temporarily as previous versions of
>+// this function template were unchecked. Do not use this in new code.
>+template <
>+    typename Dest, typename Source,
>+    typename std::enable_if<
>+        !internal_casts::is_bitcastable<Dest, Source>::value, int>::type = 0>
>+ABSL_DEPRECATED(
>+    "absl::bit_cast type requirements were violated. Update the types being "
>+    "used such that they are the same size and are both TriviallyCopyable.")
>+inline Dest bit_cast(const Source& source) {
>+  static_assert(sizeof(Dest) == sizeof(Source),
>+                "Source and destination types should have equal sizes.");
>+
>+  Dest dest;
>+  memcpy(&dest, &source, sizeof(dest));
>+  return dest;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_CASTS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..6890e313bf27af7e5e8a5c051325013e27215a0e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config.h
>@@ -0,0 +1,427 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: config.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines a set of macros for checking the presence of
>+// important compiler and platform features. Such macros can be used to
>+// produce portable code by parameterizing compilation based on the presence or
>+// lack of a given feature.
>+//
>+// We define a "feature" as some interface we wish to program to: for example,
>+// a library function or system call. A value of `1` indicates support for
>+// that feature; any other value indicates the feature support is undefined.
>+//
>+// Example:
>+//
>+// Suppose a programmer wants to write a program that uses the 'mmap()' system
>+// call. The Abseil macro for that feature (`ABSL_HAVE_MMAP`) allows you to
>+// selectively include the `mmap.h` header and bracket code using that feature
>+// in the macro:
>+//
>+//   #include "absl/base/config.h"
>+//
>+//   #ifdef ABSL_HAVE_MMAP
>+//   #include "sys/mman.h"
>+//   #endif  //ABSL_HAVE_MMAP
>+//
>+//   ...
>+//   #ifdef ABSL_HAVE_MMAP
>+//   void *ptr = mmap(...);
>+//   ...
>+//   #endif  // ABSL_HAVE_MMAP
>+
>+#ifndef ABSL_BASE_CONFIG_H_
>+#define ABSL_BASE_CONFIG_H_
>+
>+// Included for the __GLIBC__ macro (or similar macros on other systems).
>+#include <limits.h>
>+
>+#ifdef __cplusplus
>+// Included for __GLIBCXX__, _LIBCPP_VERSION
>+#include <cstddef>
>+#endif  // __cplusplus
>+
>+#if defined(__APPLE__)
>+// Included for TARGET_OS_IPHONE, __IPHONE_OS_VERSION_MIN_REQUIRED,
>+// __IPHONE_8_0.
>+#include <Availability.h>
>+#include <TargetConditionals.h>
>+#endif
>+
>+#include "absl/base/policy_checks.h"
>+
>+// -----------------------------------------------------------------------------
>+// Compiler Feature Checks
>+// -----------------------------------------------------------------------------
>+
>+// ABSL_HAVE_BUILTIN()
>+//
>+// Checks whether the compiler supports a Clang Feature Checking Macro, and if
>+// so, checks whether it supports the provided builtin function "x" where x
>+// is one of the functions noted in
>+// https://clang.llvm.org/docs/LanguageExtensions.html
>+//
>+// Note: Use this macro to avoid an extra level of #ifdef __has_builtin check.
>+// http://releases.llvm.org/3.3/tools/clang/docs/LanguageExtensions.html
>+#ifdef __has_builtin
>+#define ABSL_HAVE_BUILTIN(x) __has_builtin(x)
>+#else
>+#define ABSL_HAVE_BUILTIN(x) 0
>+#endif
>+
>+// ABSL_HAVE_TLS is defined to 1 when __thread should be supported.
>+// We assume __thread is supported on Linux when compiled with Clang or compiled
>+// against libstdc++ with _GLIBCXX_HAVE_TLS defined.
>+#ifdef ABSL_HAVE_TLS
>+#error ABSL_HAVE_TLS cannot be directly set
>+#elif defined(__linux__) && (defined(__clang__) || defined(_GLIBCXX_HAVE_TLS))
>+#define ABSL_HAVE_TLS 1
>+#endif
>+
>+// ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
>+//
>+// Checks whether `std::is_trivially_destructible<T>` is supported.
>+//
>+// Notes: All supported compilers using libc++ support this feature, as does
>+// gcc >= 4.8.1 using libstdc++, and Visual Studio.
>+#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
>+#error ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE cannot be directly set
>+#elif defined(_LIBCPP_VERSION) ||                                        \
>+    (!defined(__clang__) && defined(__GNUC__) && defined(__GLIBCXX__) && \
>+     (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) ||        \
>+    defined(_MSC_VER)
>+#define ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE 1
>+#endif
>+
>+// ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
>+//
>+// Checks whether `std::is_trivially_default_constructible<T>` and
>+// `std::is_trivially_copy_constructible<T>` are supported.
>+
>+// ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE
>+//
>+// Checks whether `std::is_trivially_copy_assignable<T>` is supported.
>+
>+// Notes: Clang with libc++ supports these features, as does gcc >= 5.1 with
>+// either libc++ or libstdc++, and Visual Studio.
>+#if defined(ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE)
>+#error ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE cannot be directly set
>+#elif defined(ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE)
>+#error ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE cannot directly set
>+#elif (defined(__clang__) && defined(_LIBCPP_VERSION)) ||        \
>+    (!defined(__clang__) && defined(__GNUC__) &&                 \
>+     (__GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)) && \
>+     (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__))) ||      \
>+    defined(_MSC_VER)
>+#define ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE 1
>+#define ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE 1
>+#endif
>+
>+// ABSL_HAVE_THREAD_LOCAL
>+//
>+// Checks whether C++11's `thread_local` storage duration specifier is
>+// supported.
>+#ifdef ABSL_HAVE_THREAD_LOCAL
>+#error ABSL_HAVE_THREAD_LOCAL cannot be directly set
>+#elif defined(__APPLE__)
>+// Notes: Xcode's clang did not support `thread_local` until version
>+// 8, and even then not for all iOS < 9.0. Also, Xcode 9.3 started disallowing
>+// `thread_local` for 32-bit iOS simulator targeting iOS 9.x.
>+// `__has_feature` is only supported by Clang so it has be inside
>+// `defined(__APPLE__)` check.
>+#if __has_feature(cxx_thread_local)
>+#define ABSL_HAVE_THREAD_LOCAL 1
>+#endif
>+#else  // !defined(__APPLE__)
>+#define ABSL_HAVE_THREAD_LOCAL 1
>+#endif
>+
>+// There are platforms for which TLS should not be used even though the compiler
>+// makes it seem like it's supported (Android NDK < r12b for example).
>+// This is primarily because of linker problems and toolchain misconfiguration:
>+// Abseil does not intend to support this indefinitely. Currently, the newest
>+// toolchain that we intend to support that requires this behavior is the
>+// r11 NDK - allowing for a 5 year support window on that means this option
>+// is likely to be removed around June of 2021.
>+// TLS isn't supported until NDK r12b per
>+// https://developer.android.com/ndk/downloads/revision_history.html
>+// Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in
>+// <android/ndk-version.h>. For NDK < r16, users should define these macros,
>+// e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11.
>+#if defined(__ANDROID__) && defined(__clang__)
>+#if __has_include(<android/ndk-version.h>)
>+#include <android/ndk-version.h>
>+#endif  // __has_include(<android/ndk-version.h>)
>+#if defined(__ANDROID__) && defined(__clang__) && defined(__NDK_MAJOR__) && \
>+    defined(__NDK_MINOR__) &&                                               \
>+    ((__NDK_MAJOR__ < 12) || ((__NDK_MAJOR__ == 12) && (__NDK_MINOR__ < 1)))
>+#undef ABSL_HAVE_TLS
>+#undef ABSL_HAVE_THREAD_LOCAL
>+#endif
>+#endif  // defined(__ANDROID__) && defined(__clang__)
>+
>+// ABSL_HAVE_INTRINSIC_INT128
>+//
>+// Checks whether the __int128 compiler extension for a 128-bit integral type is
>+// supported.
>+//
>+// Note: __SIZEOF_INT128__ is defined by Clang and GCC when __int128 is
>+// supported, but we avoid using it in certain cases:
>+// * On Clang:
>+//   * Building using Clang for Windows, where the Clang runtime library has
>+//     128-bit support only on LP64 architectures, but Windows is LLP64.
>+//   * Building for aarch64, where __int128 exists but has exhibits a sporadic
>+//     compiler crashing bug.
>+// * On Nvidia's nvcc:
>+//   * nvcc also defines __GNUC__ and __SIZEOF_INT128__, but not all versions
>+//     actually support __int128.
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+#error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set
>+#elif defined(__SIZEOF_INT128__)
>+#if (defined(__clang__) && !defined(_WIN32) && !defined(__aarch64__)) || \
>+    (defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) ||                \
>+    (defined(__GNUC__) && !defined(__clang__) && !defined(__CUDACC__))
>+#define ABSL_HAVE_INTRINSIC_INT128 1
>+#elif defined(__CUDACC__)
>+// __CUDACC_VER__ is a full version number before CUDA 9, and is defined to a
>+// std::string explaining that it has been removed starting with CUDA 9. We use
>+// nested #ifs because there is no short-circuiting in the preprocessor.
>+// NOTE: `__CUDACC__` could be undefined while `__CUDACC_VER__` is defined.
>+#if __CUDACC_VER__ >= 70000
>+#define ABSL_HAVE_INTRINSIC_INT128 1
>+#endif  // __CUDACC_VER__ >= 70000
>+#endif  // defined(__CUDACC__)
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+// ABSL_HAVE_EXCEPTIONS
>+//
>+// Checks whether the compiler both supports and enables exceptions. Many
>+// compilers support a "no exceptions" mode that disables exceptions.
>+//
>+// Generally, when ABSL_HAVE_EXCEPTIONS is not defined:
>+//
>+// * Code using `throw` and `try` may not compile.
>+// * The `noexcept` specifier will still compile and behave as normal.
>+// * The `noexcept` operator may still return `false`.
>+//
>+// For further details, consult the compiler's documentation.
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+#error ABSL_HAVE_EXCEPTIONS cannot be directly set.
>+
>+#elif defined(__clang__)
>+// TODO(calabrese)
>+// Switch to using __cpp_exceptions when we no longer support versions < 3.6.
>+// For details on this check, see:
>+//   http://releases.llvm.org/3.6.0/tools/clang/docs/ReleaseNotes.html#the-exceptions-macro
>+#if defined(__EXCEPTIONS) && __has_feature(cxx_exceptions)
>+#define ABSL_HAVE_EXCEPTIONS 1
>+#endif  // defined(__EXCEPTIONS) && __has_feature(cxx_exceptions)
>+
>+// Handle remaining special cases and default to exceptions being supported.
>+#elif !(defined(__GNUC__) && (__GNUC__ < 5) && !defined(__EXCEPTIONS)) &&    \
>+    !(defined(__GNUC__) && (__GNUC__ >= 5) && !defined(__cpp_exceptions)) && \
>+    !(defined(_MSC_VER) && !defined(_CPPUNWIND))
>+#define ABSL_HAVE_EXCEPTIONS 1
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Platform Feature Checks
>+// -----------------------------------------------------------------------------
>+
>+// Currently supported operating systems and associated preprocessor
>+// symbols:
>+//
>+//   Linux and Linux-derived           __linux__
>+//   Android                           __ANDROID__ (implies __linux__)
>+//   Linux (non-Android)               __linux__ && !__ANDROID__
>+//   Darwin (Mac OS X and iOS)         __APPLE__
>+//   Akaros (http://akaros.org)        __ros__
>+//   Windows                           _WIN32
>+//   NaCL                              __native_client__
>+//   AsmJS                             __asmjs__
>+//   WebAssembly                       __wasm__
>+//   Fuchsia                           __Fuchsia__
>+//
>+// Note that since Android defines both __ANDROID__ and __linux__, one
>+// may probe for either Linux or Android by simply testing for __linux__.
>+
>+// ABSL_HAVE_MMAP
>+//
>+// Checks whether the platform has an mmap(2) implementation as defined in
>+// POSIX.1-2001.
>+#ifdef ABSL_HAVE_MMAP
>+#error ABSL_HAVE_MMAP cannot be directly set
>+#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) ||   \
>+    defined(__ros__) || defined(__native_client__) || defined(__asmjs__) || \
>+    defined(__wasm__) || defined(__Fuchsia__) || defined(__sun)
>+#define ABSL_HAVE_MMAP 1
>+#endif
>+
>+// ABSL_HAVE_PTHREAD_GETSCHEDPARAM
>+//
>+// Checks whether the platform implements the pthread_(get|set)schedparam(3)
>+// functions as defined in POSIX.1-2001.
>+#ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM
>+#error ABSL_HAVE_PTHREAD_GETSCHEDPARAM cannot be directly set
>+#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
>+    defined(__ros__)
>+#define ABSL_HAVE_PTHREAD_GETSCHEDPARAM 1
>+#endif
>+
>+// ABSL_HAVE_SCHED_YIELD
>+//
>+// Checks whether the platform implements sched_yield(2) as defined in
>+// POSIX.1-2001.
>+#ifdef ABSL_HAVE_SCHED_YIELD
>+#error ABSL_HAVE_SCHED_YIELD cannot be directly set
>+#elif defined(__linux__) || defined(__ros__) || defined(__native_client__)
>+#define ABSL_HAVE_SCHED_YIELD 1
>+#endif
>+
>+// ABSL_HAVE_SEMAPHORE_H
>+//
>+// Checks whether the platform supports the <semaphore.h> header and sem_open(3)
>+// family of functions as standardized in POSIX.1-2001.
>+//
>+// Note: While Apple provides <semaphore.h> for both iOS and macOS, it is
>+// explicitly deprecated and will cause build failures if enabled for those
>+// platforms.  We side-step the issue by not defining it here for Apple
>+// platforms.
>+#ifdef ABSL_HAVE_SEMAPHORE_H
>+#error ABSL_HAVE_SEMAPHORE_H cannot be directly set
>+#elif defined(__linux__) || defined(__ros__)
>+#define ABSL_HAVE_SEMAPHORE_H 1
>+#endif
>+
>+// ABSL_HAVE_ALARM
>+//
>+// Checks whether the platform supports the <signal.h> header and alarm(2)
>+// function as standardized in POSIX.1-2001.
>+#ifdef ABSL_HAVE_ALARM
>+#error ABSL_HAVE_ALARM cannot be directly set
>+#elif defined(__GOOGLE_GRTE_VERSION__)
>+// feature tests for Google's GRTE
>+#define ABSL_HAVE_ALARM 1
>+#elif defined(__GLIBC__)
>+// feature test for glibc
>+#define ABSL_HAVE_ALARM 1
>+#elif defined(_MSC_VER)
>+// feature tests for Microsoft's library
>+#elif defined(__native_client__)
>+#else
>+// other standard libraries
>+#define ABSL_HAVE_ALARM 1
>+#endif
>+
>+// ABSL_IS_LITTLE_ENDIAN
>+// ABSL_IS_BIG_ENDIAN
>+//
>+// Checks the endianness of the platform.
>+//
>+// Notes: uses the built in endian macros provided by GCC (since 4.6) and
>+// Clang (since 3.2); see
>+// https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html.
>+// Otherwise, if _WIN32, assume little endian. Otherwise, bail with an error.
>+#if defined(ABSL_IS_BIG_ENDIAN)
>+#error "ABSL_IS_BIG_ENDIAN cannot be directly set."
>+#endif
>+#if defined(ABSL_IS_LITTLE_ENDIAN)
>+#error "ABSL_IS_LITTLE_ENDIAN cannot be directly set."
>+#endif
>+
>+#if (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \
>+     __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
>+#define ABSL_IS_LITTLE_ENDIAN 1
>+#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
>+    __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
>+#define ABSL_IS_BIG_ENDIAN 1
>+#elif defined(_WIN32)
>+#define ABSL_IS_LITTLE_ENDIAN 1
>+#else
>+#error "absl endian detection needs to be set up for your compiler"
>+#endif
>+
>+// ABSL_HAVE_STD_ANY
>+//
>+// Checks whether C++17 std::any is available by checking whether <any> exists.
>+#ifdef ABSL_HAVE_STD_ANY
>+#error "ABSL_HAVE_STD_ANY cannot be directly set."
>+#endif
>+
>+#ifdef __has_include
>+#if __has_include(<any>) && __cplusplus >= 201703L
>+#define ABSL_HAVE_STD_ANY 1
>+#endif
>+#endif
>+
>+// ABSL_HAVE_STD_OPTIONAL
>+//
>+// Checks whether C++17 std::optional is available.
>+#ifdef ABSL_HAVE_STD_OPTIONAL
>+#error "ABSL_HAVE_STD_OPTIONAL cannot be directly set."
>+#endif
>+
>+#ifdef __has_include
>+#if __has_include(<optional>) && __cplusplus >= 201703L
>+#define ABSL_HAVE_STD_OPTIONAL 1
>+#endif
>+#endif
>+
>+// ABSL_HAVE_STD_VARIANT
>+//
>+// Checks whether C++17 std::variant is available.
>+#ifdef ABSL_HAVE_STD_VARIANT
>+#error "ABSL_HAVE_STD_VARIANT cannot be directly set."
>+#endif
>+
>+#ifdef __has_include
>+#if __has_include(<variant>) && __cplusplus >= 201703L
>+#define ABSL_HAVE_STD_VARIANT 1
>+#endif
>+#endif
>+
>+// ABSL_HAVE_STD_STRING_VIEW
>+//
>+// Checks whether C++17 std::string_view is available.
>+#ifdef ABSL_HAVE_STD_STRING_VIEW
>+#error "ABSL_HAVE_STD_STRING_VIEW cannot be directly set."
>+#endif
>+
>+#ifdef __has_include
>+#if __has_include(<string_view>) && __cplusplus >= 201703L
>+#define ABSL_HAVE_STD_STRING_VIEW 1
>+#endif
>+#endif
>+
>+// For MSVC, `__has_include` is supported in VS 2017 15.3, which is later than
>+// the support for <optional>, <any>, <string_view>, <variant>. So we use
>+// _MSC_VER to check whether we have VS 2017 RTM (when <optional>, <any>,
>+// <string_view>, <variant> is implemented) or higher. Also, `__cplusplus` is
>+// not correctly set by MSVC, so we use `_MSVC_LANG` to check the language
>+// version.
>+// TODO(zhangxy): fix tests before enabling aliasing for `std::any`,
>+// `std::string_view`.
>+#if defined(_MSC_VER) && _MSC_VER >= 1910 && \
>+    ((defined(_MSVC_LANG) && _MSVC_LANG > 201402) || __cplusplus > 201402)
>+// #define ABSL_HAVE_STD_ANY 1
>+#define ABSL_HAVE_STD_OPTIONAL 1
>+#define ABSL_HAVE_STD_VARIANT 1
>+// #define ABSL_HAVE_STD_STRING_VIEW 1
>+#endif
>+
>+#endif  // ABSL_BASE_CONFIG_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c839712a537e4169ca0165ff9f9d30b17e821e28
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/config_test.cc
>@@ -0,0 +1,60 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/config.h"
>+
>+#include <cstdint>
>+
>+#include "gtest/gtest.h"
>+#include "absl/synchronization/internal/thread_pool.h"
>+
>+namespace {
>+
>+TEST(ConfigTest, Endianness) {
>+  union {
>+    uint32_t value;
>+    uint8_t data[sizeof(uint32_t)];
>+  } number;
>+  number.data[0] = 0x00;
>+  number.data[1] = 0x01;
>+  number.data[2] = 0x02;
>+  number.data[3] = 0x03;
>+#if defined(ABSL_IS_LITTLE_ENDIAN) && defined(ABSL_IS_BIG_ENDIAN)
>+#error Both ABSL_IS_LITTLE_ENDIAN and ABSL_IS_BIG_ENDIAN are defined
>+#elif defined(ABSL_IS_LITTLE_ENDIAN)
>+  EXPECT_EQ(UINT32_C(0x03020100), number.value);
>+#elif defined(ABSL_IS_BIG_ENDIAN)
>+  EXPECT_EQ(UINT32_C(0x00010203), number.value);
>+#else
>+#error Unknown endianness
>+#endif
>+}
>+
>+#if defined(ABSL_HAVE_THREAD_LOCAL)
>+TEST(ConfigTest, ThreadLocal) {
>+  static thread_local int mine_mine_mine = 16;
>+  EXPECT_EQ(16, mine_mine_mine);
>+  {
>+    absl::synchronization_internal::ThreadPool pool(1);
>+    pool.Schedule([&] {
>+      EXPECT_EQ(16, mine_mine_mine);
>+      mine_mine_mine = 32;
>+      EXPECT_EQ(32, mine_mine_mine);
>+    });
>+  }
>+  EXPECT_EQ(16, mine_mine_mine);
>+}
>+#endif
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b97fa3a8b4a9bc8e67ed3726d45241bde5da12eb
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.cc
>@@ -0,0 +1,129 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <stdlib.h>
>+#include <string.h>
>+
>+#include "absl/base/dynamic_annotations.h"
>+
>+#ifndef __has_feature
>+#define __has_feature(x) 0
>+#endif
>+
>+/* Compiler-based ThreadSanitizer defines
>+   ABSL_DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL = 1
>+   and provides its own definitions of the functions. */
>+
>+#ifndef ABSL_DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL
>+# define ABSL_DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL 0
>+#endif
>+
>+/* Each function is empty and called (via a macro) only in debug mode.
>+   The arguments are captured by dynamic tools at runtime. */
>+
>+#if ABSL_DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 && !defined(__native_client__)
>+
>+#if __has_feature(memory_sanitizer)
>+#include <sanitizer/msan_interface.h>
>+#endif
>+
>+#ifdef __cplusplus
>+extern "C" {
>+#endif
>+
>+void AbslAnnotateRWLockCreate(const char *, int,
>+                          const volatile void *){}
>+void AbslAnnotateRWLockDestroy(const char *, int,
>+                           const volatile void *){}
>+void AbslAnnotateRWLockAcquired(const char *, int,
>+                            const volatile void *, long){}
>+void AbslAnnotateRWLockReleased(const char *, int,
>+                            const volatile void *, long){}
>+void AbslAnnotateBenignRace(const char *, int,
>+                        const volatile void *,
>+                        const char *){}
>+void AbslAnnotateBenignRaceSized(const char *, int,
>+                             const volatile void *,
>+                             size_t,
>+                             const char *) {}
>+void AbslAnnotateThreadName(const char *, int,
>+                        const char *){}
>+void AbslAnnotateIgnoreReadsBegin(const char *, int){}
>+void AbslAnnotateIgnoreReadsEnd(const char *, int){}
>+void AbslAnnotateIgnoreWritesBegin(const char *, int){}
>+void AbslAnnotateIgnoreWritesEnd(const char *, int){}
>+void AbslAnnotateEnableRaceDetection(const char *, int, int){}
>+void AbslAnnotateMemoryIsInitialized(const char *, int,
>+                                 const volatile void *mem, size_t size) {
>+#if __has_feature(memory_sanitizer)
>+  __msan_unpoison(mem, size);
>+#else
>+  (void)mem;
>+  (void)size;
>+#endif
>+}
>+
>+void AbslAnnotateMemoryIsUninitialized(const char *, int,
>+                                   const volatile void *mem, size_t size) {
>+#if __has_feature(memory_sanitizer)
>+  __msan_allocated_memory(mem, size);
>+#else
>+  (void)mem;
>+  (void)size;
>+#endif
>+}
>+
>+static int AbslGetRunningOnValgrind(void) {
>+#ifdef RUNNING_ON_VALGRIND
>+  if (RUNNING_ON_VALGRIND) return 1;
>+#endif
>+  char *running_on_valgrind_str = getenv("RUNNING_ON_VALGRIND");
>+  if (running_on_valgrind_str) {
>+    return strcmp(running_on_valgrind_str, "0") != 0;
>+  }
>+  return 0;
>+}
>+
>+/* See the comments in dynamic_annotations.h */
>+int AbslRunningOnValgrind(void) {
>+  static volatile int running_on_valgrind = -1;
>+  int local_running_on_valgrind = running_on_valgrind;
>+  /* C doesn't have thread-safe initialization of statics, and we
>+     don't want to depend on pthread_once here, so hack it. */
>+  ABSL_ANNOTATE_BENIGN_RACE(&running_on_valgrind, "safe hack");
>+  if (local_running_on_valgrind == -1)
>+    running_on_valgrind = local_running_on_valgrind = AbslGetRunningOnValgrind();
>+  return local_running_on_valgrind;
>+}
>+
>+/* See the comments in dynamic_annotations.h */
>+double AbslValgrindSlowdown(void) {
>+  /* Same initialization hack as in AbslRunningOnValgrind(). */
>+  static volatile double slowdown = 0.0;
>+  double local_slowdown = slowdown;
>+  ABSL_ANNOTATE_BENIGN_RACE(&slowdown, "safe hack");
>+  if (AbslRunningOnValgrind() == 0) {
>+    return 1.0;
>+  }
>+  if (local_slowdown == 0.0) {
>+    char *env = getenv("VALGRIND_SLOWDOWN");
>+    slowdown = local_slowdown = env ? atof(env) : 50.0;
>+  }
>+  return local_slowdown;
>+}
>+
>+#ifdef __cplusplus
>+}  // extern "C"
>+#endif
>+#endif  /* ABSL_DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 */
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..88048b0fbb1f4f792b0a74e465d9910e7804f58f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/dynamic_annotations.h
>@@ -0,0 +1,388 @@
>+/*
>+ *  Copyright 2017 The Abseil Authors.
>+ *
>+ * Licensed under the Apache License, Version 2.0 (the "License");
>+ * you may not use this file except in compliance with the License.
>+ * You may obtain a copy of the License at
>+ *
>+ *      http://www.apache.org/licenses/LICENSE-2.0
>+ *
>+ * Unless required by applicable law or agreed to in writing, software
>+ * distributed under the License is distributed on an "AS IS" BASIS,
>+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+ * See the License for the specific language governing permissions and
>+ * limitations under the License.
>+ */
>+/* This file defines dynamic annotations for use with dynamic analysis
>+   tool such as valgrind, PIN, etc.
>+
>+   Dynamic annotation is a source code annotation that affects
>+   the generated code (that is, the annotation is not a comment).
>+   Each such annotation is attached to a particular
>+   instruction and/or to a particular object (address) in the program.
>+
>+   The annotations that should be used by users are macros in all upper-case
>+   (e.g., ABSL_ANNOTATE_THREAD_NAME).
>+
>+   Actual implementation of these macros may differ depending on the
>+   dynamic analysis tool being used.
>+
>+   This file supports the following configurations:
>+   - Dynamic Annotations enabled (with static thread-safety warnings disabled).
>+     In this case, macros expand to functions implemented by Thread Sanitizer,
>+     when building with TSan. When not provided an external implementation,
>+     dynamic_annotations.cc provides no-op implementations.
>+
>+   - Static Clang thread-safety warnings enabled.
>+     When building with a Clang compiler that supports thread-safety warnings,
>+     a subset of annotations can be statically-checked at compile-time. We
>+     expand these macros to static-inline functions that can be analyzed for
>+     thread-safety, but afterwards elided when building the final binary.
>+
>+   - All annotations are disabled.
>+     If neither Dynamic Annotations nor Clang thread-safety warnings are
>+     enabled, then all annotation-macros expand to empty. */
>+
>+#ifndef ABSL_BASE_DYNAMIC_ANNOTATIONS_H_
>+#define ABSL_BASE_DYNAMIC_ANNOTATIONS_H_
>+
>+#ifndef ABSL_DYNAMIC_ANNOTATIONS_ENABLED
>+# define ABSL_DYNAMIC_ANNOTATIONS_ENABLED 0
>+#endif
>+
>+#if ABSL_DYNAMIC_ANNOTATIONS_ENABLED != 0
>+
>+  /* -------------------------------------------------------------
>+     Annotations that suppress errors.  It is usually better to express the
>+     program's synchronization using the other annotations, but these can
>+     be used when all else fails. */
>+
>+  /* Report that we may have a benign race at "pointer", with size
>+     "sizeof(*(pointer))". "pointer" must be a non-void* pointer.  Insert at the
>+     point where "pointer" has been allocated, preferably close to the point
>+     where the race happens.  See also ABSL_ANNOTATE_BENIGN_RACE_STATIC. */
>+  #define ABSL_ANNOTATE_BENIGN_RACE(pointer, description) \
>+    AbslAnnotateBenignRaceSized(__FILE__, __LINE__, pointer, \
>+                            sizeof(*(pointer)), description)
>+
>+  /* Same as ABSL_ANNOTATE_BENIGN_RACE(address, description), but applies to
>+     the memory range [address, address+size). */
>+  #define ABSL_ANNOTATE_BENIGN_RACE_SIZED(address, size, description) \
>+    AbslAnnotateBenignRaceSized(__FILE__, __LINE__, address, size, description)
>+
>+  /* Enable (enable!=0) or disable (enable==0) race detection for all threads.
>+     This annotation could be useful if you want to skip expensive race analysis
>+     during some period of program execution, e.g. during initialization. */
>+  #define ABSL_ANNOTATE_ENABLE_RACE_DETECTION(enable) \
>+    AbslAnnotateEnableRaceDetection(__FILE__, __LINE__, enable)
>+
>+  /* -------------------------------------------------------------
>+     Annotations useful for debugging. */
>+
>+  /* Report the current thread name to a race detector. */
>+  #define ABSL_ANNOTATE_THREAD_NAME(name) \
>+    AbslAnnotateThreadName(__FILE__, __LINE__, name)
>+
>+  /* -------------------------------------------------------------
>+     Annotations useful when implementing locks.  They are not
>+     normally needed by modules that merely use locks.
>+     The "lock" argument is a pointer to the lock object. */
>+
>+  /* Report that a lock has been created at address "lock". */
>+  #define ABSL_ANNOTATE_RWLOCK_CREATE(lock) \
>+    AbslAnnotateRWLockCreate(__FILE__, __LINE__, lock)
>+
>+  /* Report that a linker initialized lock has been created at address "lock".
>+   */
>+#ifdef THREAD_SANITIZER
>+  #define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) \
>+    AbslAnnotateRWLockCreateStatic(__FILE__, __LINE__, lock)
>+#else
>+  #define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) ABSL_ANNOTATE_RWLOCK_CREATE(lock)
>+#endif
>+
>+  /* Report that the lock at address "lock" is about to be destroyed. */
>+  #define ABSL_ANNOTATE_RWLOCK_DESTROY(lock) \
>+    AbslAnnotateRWLockDestroy(__FILE__, __LINE__, lock)
>+
>+  /* Report that the lock at address "lock" has been acquired.
>+     is_w=1 for writer lock, is_w=0 for reader lock. */
>+  #define ABSL_ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) \
>+    AbslAnnotateRWLockAcquired(__FILE__, __LINE__, lock, is_w)
>+
>+  /* Report that the lock at address "lock" is about to be released. */
>+  #define ABSL_ANNOTATE_RWLOCK_RELEASED(lock, is_w) \
>+    AbslAnnotateRWLockReleased(__FILE__, __LINE__, lock, is_w)
>+
>+#else  /* ABSL_DYNAMIC_ANNOTATIONS_ENABLED == 0 */
>+
>+  #define ABSL_ANNOTATE_RWLOCK_CREATE(lock) /* empty */
>+  #define ABSL_ANNOTATE_RWLOCK_CREATE_STATIC(lock) /* empty */
>+  #define ABSL_ANNOTATE_RWLOCK_DESTROY(lock) /* empty */
>+  #define ABSL_ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) /* empty */
>+  #define ABSL_ANNOTATE_RWLOCK_RELEASED(lock, is_w) /* empty */
>+  #define ABSL_ANNOTATE_BENIGN_RACE(address, description) /* empty */
>+  #define ABSL_ANNOTATE_BENIGN_RACE_SIZED(address, size, description) /* empty */
>+  #define ABSL_ANNOTATE_THREAD_NAME(name) /* empty */
>+  #define ABSL_ANNOTATE_ENABLE_RACE_DETECTION(enable) /* empty */
>+
>+#endif  /* ABSL_DYNAMIC_ANNOTATIONS_ENABLED */
>+
>+/* These annotations are also made available to LLVM's Memory Sanitizer */
>+#if ABSL_DYNAMIC_ANNOTATIONS_ENABLED == 1 || defined(MEMORY_SANITIZER)
>+  #define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) \
>+    AbslAnnotateMemoryIsInitialized(__FILE__, __LINE__, address, size)
>+
>+  #define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) \
>+    AbslAnnotateMemoryIsUninitialized(__FILE__, __LINE__, address, size)
>+#else
>+  #define ABSL_ANNOTATE_MEMORY_IS_INITIALIZED(address, size) /* empty */
>+  #define ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(address, size) /* empty */
>+#endif  /* ABSL_DYNAMIC_ANNOTATIONS_ENABLED || MEMORY_SANITIZER */
>+/* TODO(delesley) -- Replace __CLANG_SUPPORT_DYN_ANNOTATION__ with the
>+   appropriate feature ID. */
>+#if defined(__clang__) && (!defined(SWIG)) \
>+    && defined(__CLANG_SUPPORT_DYN_ANNOTATION__)
>+
>+  #if ABSL_DYNAMIC_ANNOTATIONS_ENABLED == 0
>+    #define ABSL_ANNOTALYSIS_ENABLED
>+  #endif
>+
>+  /* When running in opt-mode, GCC will issue a warning, if these attributes are
>+     compiled. Only include them when compiling using Clang. */
>+  #define ABSL_ATTRIBUTE_IGNORE_READS_BEGIN \
>+      __attribute((exclusive_lock_function("*")))
>+  #define ABSL_ATTRIBUTE_IGNORE_READS_END \
>+      __attribute((unlock_function("*")))
>+#else
>+  #define ABSL_ATTRIBUTE_IGNORE_READS_BEGIN  /* empty */
>+  #define ABSL_ATTRIBUTE_IGNORE_READS_END  /* empty */
>+#endif  /* defined(__clang__) && ... */
>+
>+#if (ABSL_DYNAMIC_ANNOTATIONS_ENABLED != 0) || defined(ABSL_ANNOTALYSIS_ENABLED)
>+  #define ABSL_ANNOTATIONS_ENABLED
>+#endif
>+
>+#if (ABSL_DYNAMIC_ANNOTATIONS_ENABLED != 0)
>+
>+  /* Request the analysis tool to ignore all reads in the current thread
>+     until ABSL_ANNOTATE_IGNORE_READS_END is called.
>+     Useful to ignore intentional racey reads, while still checking
>+     other reads and all writes.
>+     See also ABSL_ANNOTATE_UNPROTECTED_READ. */
>+  #define ABSL_ANNOTATE_IGNORE_READS_BEGIN() \
>+    AbslAnnotateIgnoreReadsBegin(__FILE__, __LINE__)
>+
>+  /* Stop ignoring reads. */
>+  #define ABSL_ANNOTATE_IGNORE_READS_END() \
>+    AbslAnnotateIgnoreReadsEnd(__FILE__, __LINE__)
>+
>+  /* Similar to ABSL_ANNOTATE_IGNORE_READS_BEGIN, but ignore writes instead. */
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_BEGIN() \
>+    AbslAnnotateIgnoreWritesBegin(__FILE__, __LINE__)
>+
>+  /* Stop ignoring writes. */
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_END() \
>+    AbslAnnotateIgnoreWritesEnd(__FILE__, __LINE__)
>+
>+/* Clang provides limited support for static thread-safety analysis
>+   through a feature called Annotalysis. We configure macro-definitions
>+   according to whether Annotalysis support is available. */
>+#elif defined(ABSL_ANNOTALYSIS_ENABLED)
>+
>+  #define ABSL_ANNOTATE_IGNORE_READS_BEGIN() \
>+    AbslStaticAnnotateIgnoreReadsBegin(__FILE__, __LINE__)
>+
>+  #define ABSL_ANNOTATE_IGNORE_READS_END() \
>+    AbslStaticAnnotateIgnoreReadsEnd(__FILE__, __LINE__)
>+
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_BEGIN() \
>+    AbslStaticAnnotateIgnoreWritesBegin(__FILE__, __LINE__)
>+
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_END() \
>+    AbslStaticAnnotateIgnoreWritesEnd(__FILE__, __LINE__)
>+
>+#else
>+  #define ABSL_ANNOTATE_IGNORE_READS_BEGIN()  /* empty */
>+  #define ABSL_ANNOTATE_IGNORE_READS_END()  /* empty */
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_BEGIN()  /* empty */
>+  #define ABSL_ANNOTATE_IGNORE_WRITES_END()  /* empty */
>+#endif
>+
>+/* Implement the ANNOTATE_IGNORE_READS_AND_WRITES_* annotations using the more
>+   primitive annotations defined above. */
>+#if defined(ABSL_ANNOTATIONS_ENABLED)
>+
>+  /* Start ignoring all memory accesses (both reads and writes). */
>+  #define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() \
>+    do {                                           \
>+      ABSL_ANNOTATE_IGNORE_READS_BEGIN();               \
>+      ABSL_ANNOTATE_IGNORE_WRITES_BEGIN();              \
>+    }while (0)
>+
>+  /* Stop ignoring both reads and writes. */
>+  #define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END()   \
>+    do {                                           \
>+      ABSL_ANNOTATE_IGNORE_WRITES_END();                \
>+      ABSL_ANNOTATE_IGNORE_READS_END();                 \
>+    }while (0)
>+
>+#else
>+  #define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN()  /* empty */
>+  #define ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END()  /* empty */
>+#endif
>+
>+/* Use the macros above rather than using these functions directly. */
>+#include <stddef.h>
>+#ifdef __cplusplus
>+extern "C" {
>+#endif
>+void AbslAnnotateRWLockCreate(const char *file, int line,
>+                          const volatile void *lock);
>+void AbslAnnotateRWLockCreateStatic(const char *file, int line,
>+                          const volatile void *lock);
>+void AbslAnnotateRWLockDestroy(const char *file, int line,
>+                           const volatile void *lock);
>+void AbslAnnotateRWLockAcquired(const char *file, int line,
>+                            const volatile void *lock, long is_w);  /* NOLINT */
>+void AbslAnnotateRWLockReleased(const char *file, int line,
>+                            const volatile void *lock, long is_w);  /* NOLINT */
>+void AbslAnnotateBenignRace(const char *file, int line,
>+                        const volatile void *address,
>+                        const char *description);
>+void AbslAnnotateBenignRaceSized(const char *file, int line,
>+                        const volatile void *address,
>+                        size_t size,
>+                        const char *description);
>+void AbslAnnotateThreadName(const char *file, int line,
>+                        const char *name);
>+void AbslAnnotateEnableRaceDetection(const char *file, int line, int enable);
>+void AbslAnnotateMemoryIsInitialized(const char *file, int line,
>+                                 const volatile void *mem, size_t size);
>+void AbslAnnotateMemoryIsUninitialized(const char *file, int line,
>+                                   const volatile void *mem, size_t size);
>+
>+/* Annotations expand to these functions, when Dynamic Annotations are enabled.
>+   These functions are either implemented as no-op calls, if no Sanitizer is
>+   attached, or provided with externally-linked implementations by a library
>+   like ThreadSanitizer. */
>+void AbslAnnotateIgnoreReadsBegin(const char *file, int line)
>+    ABSL_ATTRIBUTE_IGNORE_READS_BEGIN;
>+void AbslAnnotateIgnoreReadsEnd(const char *file, int line)
>+    ABSL_ATTRIBUTE_IGNORE_READS_END;
>+void AbslAnnotateIgnoreWritesBegin(const char *file, int line);
>+void AbslAnnotateIgnoreWritesEnd(const char *file, int line);
>+
>+#if defined(ABSL_ANNOTALYSIS_ENABLED)
>+/* When Annotalysis is enabled without Dynamic Annotations, the use of
>+   static-inline functions allows the annotations to be read at compile-time,
>+   while still letting the compiler elide the functions from the final build.
>+
>+   TODO(delesley) -- The exclusive lock here ignores writes as well, but
>+   allows IGNORE_READS_AND_WRITES to work properly. */
>+#pragma GCC diagnostic push
>+#pragma GCC diagnostic ignored "-Wunused-function"
>+static inline void AbslStaticAnnotateIgnoreReadsBegin(const char *file, int line)
>+    ABSL_ATTRIBUTE_IGNORE_READS_BEGIN { (void)file; (void)line; }
>+static inline void AbslStaticAnnotateIgnoreReadsEnd(const char *file, int line)
>+    ABSL_ATTRIBUTE_IGNORE_READS_END { (void)file; (void)line; }
>+static inline void AbslStaticAnnotateIgnoreWritesBegin(
>+    const char *file, int line) { (void)file; (void)line; }
>+static inline void AbslStaticAnnotateIgnoreWritesEnd(
>+    const char *file, int line) { (void)file; (void)line; }
>+#pragma GCC diagnostic pop
>+#endif
>+
>+/* Return non-zero value if running under valgrind.
>+
>+  If "valgrind.h" is included into dynamic_annotations.cc,
>+  the regular valgrind mechanism will be used.
>+  See http://valgrind.org/docs/manual/manual-core-adv.html about
>+  RUNNING_ON_VALGRIND and other valgrind "client requests".
>+  The file "valgrind.h" may be obtained by doing
>+     svn co svn://svn.valgrind.org/valgrind/trunk/include
>+
>+  If for some reason you can't use "valgrind.h" or want to fake valgrind,
>+  there are two ways to make this function return non-zero:
>+    - Use environment variable: export RUNNING_ON_VALGRIND=1
>+    - Make your tool intercept the function AbslRunningOnValgrind() and
>+      change its return value.
>+ */
>+int AbslRunningOnValgrind(void);
>+
>+/* AbslValgrindSlowdown returns:
>+    * 1.0, if (AbslRunningOnValgrind() == 0)
>+    * 50.0, if (AbslRunningOnValgrind() != 0 && getenv("VALGRIND_SLOWDOWN") == NULL)
>+    * atof(getenv("VALGRIND_SLOWDOWN")) otherwise
>+   This function can be used to scale timeout values:
>+   EXAMPLE:
>+   for (;;) {
>+     DoExpensiveBackgroundTask();
>+     SleepForSeconds(5 * AbslValgrindSlowdown());
>+   }
>+ */
>+double AbslValgrindSlowdown(void);
>+
>+#ifdef __cplusplus
>+}
>+#endif
>+
>+/* ABSL_ANNOTATE_UNPROTECTED_READ is the preferred way to annotate racey reads.
>+
>+     Instead of doing
>+        ABSL_ANNOTATE_IGNORE_READS_BEGIN();
>+        ... = x;
>+        ABSL_ANNOTATE_IGNORE_READS_END();
>+     one can use
>+        ... = ABSL_ANNOTATE_UNPROTECTED_READ(x); */
>+#if defined(__cplusplus) && defined(ABSL_ANNOTATIONS_ENABLED)
>+template <typename T>
>+inline T ABSL_ANNOTATE_UNPROTECTED_READ(const volatile T &x) { /* NOLINT */
>+  ABSL_ANNOTATE_IGNORE_READS_BEGIN();
>+  T res = x;
>+  ABSL_ANNOTATE_IGNORE_READS_END();
>+  return res;
>+  }
>+#else
>+  #define ABSL_ANNOTATE_UNPROTECTED_READ(x) (x)
>+#endif
>+
>+#if ABSL_DYNAMIC_ANNOTATIONS_ENABLED != 0 && defined(__cplusplus)
>+  /* Apply ABSL_ANNOTATE_BENIGN_RACE_SIZED to a static variable. */
>+  #define ABSL_ANNOTATE_BENIGN_RACE_STATIC(static_var, description)        \
>+    namespace {                                                       \
>+      class static_var ## _annotator {                                \
>+       public:                                                        \
>+        static_var ## _annotator() {                                  \
>+          ABSL_ANNOTATE_BENIGN_RACE_SIZED(&static_var,                     \
>+                                      sizeof(static_var),             \
>+            # static_var ": " description);                           \
>+        }                                                             \
>+      };                                                              \
>+      static static_var ## _annotator the ## static_var ## _annotator;\
>+    }  // namespace
>+#else /* ABSL_DYNAMIC_ANNOTATIONS_ENABLED == 0 */
>+  #define ABSL_ANNOTATE_BENIGN_RACE_STATIC(static_var, description)  /* empty */
>+#endif /* ABSL_DYNAMIC_ANNOTATIONS_ENABLED */
>+
>+#ifdef ADDRESS_SANITIZER
>+/* Describe the current state of a contiguous container such as e.g.
>+ * std::vector or std::string. For more details see
>+ * sanitizer/common_interface_defs.h, which is provided by the compiler. */
>+#include <sanitizer/common_interface_defs.h>
>+#define ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid) \
>+  __sanitizer_annotate_contiguous_container(beg, end, old_mid, new_mid)
>+#define ABSL_ADDRESS_SANITIZER_REDZONE(name)         \
>+  struct { char x[8] __attribute__ ((aligned (8))); } name
>+#else
>+#define ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(beg, end, old_mid, new_mid)
>+#define ABSL_ADDRESS_SANITIZER_REDZONE(name)
>+#endif  // ADDRESS_SANITIZER
>+
>+/* Undefine the macros intended only in this file. */
>+#undef ABSL_ANNOTALYSIS_ENABLED
>+#undef ABSL_ANNOTATIONS_ENABLED
>+#undef ABSL_ATTRIBUTE_IGNORE_READS_BEGIN
>+#undef ABSL_ATTRIBUTE_IGNORE_READS_END
>+
>+#endif  /* ABSL_BASE_DYNAMIC_ANNOTATIONS_H_ */
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..97c8d6f831894a880a984a1d0e090e04877282ee
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/exception_safety_testing_test.cc
>@@ -0,0 +1,942 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+#include <cstddef>
>+#include <exception>
>+#include <iostream>
>+#include <list>
>+#include <type_traits>
>+#include <vector>
>+
>+#include "gtest/gtest-spi.h"
>+#include "gtest/gtest.h"
>+#include "absl/memory/memory.h"
>+
>+namespace testing {
>+
>+namespace {
>+
>+using ::testing::exceptions_internal::SetCountdown;
>+using ::testing::exceptions_internal::TestException;
>+using ::testing::exceptions_internal::UnsetCountdown;
>+
>+// EXPECT_NO_THROW can't inspect the thrown inspection in general.
>+template <typename F>
>+void ExpectNoThrow(const F& f) {
>+  try {
>+    f();
>+  } catch (TestException e) {
>+    ADD_FAILURE() << "Unexpected exception thrown from " << e.what();
>+  }
>+}
>+
>+TEST(ThrowingValueTest, Throws) {
>+  SetCountdown();
>+  EXPECT_THROW(ThrowingValue<> bomb, TestException);
>+
>+  // It's not guaranteed that every operator only throws *once*.  The default
>+  // ctor only throws once, though, so use it to make sure we only throw when
>+  // the countdown hits 0
>+  SetCountdown(2);
>+  ExpectNoThrow([]() { ThrowingValue<> bomb; });
>+  ExpectNoThrow([]() { ThrowingValue<> bomb; });
>+  EXPECT_THROW(ThrowingValue<> bomb, TestException);
>+
>+  UnsetCountdown();
>+}
>+
>+// Tests that an operation throws when the countdown is at 0, doesn't throw when
>+// the countdown doesn't hit 0, and doesn't modify the state of the
>+// ThrowingValue if it throws
>+template <typename F>
>+void TestOp(const F& f) {
>+  ExpectNoThrow(f);
>+
>+  SetCountdown();
>+  EXPECT_THROW(f(), TestException);
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, ThrowingCtors) {
>+  ThrowingValue<> bomb;
>+
>+  TestOp([]() { ThrowingValue<> bomb(1); });
>+  TestOp([&]() { ThrowingValue<> bomb1 = bomb; });
>+  TestOp([&]() { ThrowingValue<> bomb1 = std::move(bomb); });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingAssignment) {
>+  ThrowingValue<> bomb, bomb1;
>+
>+  TestOp([&]() { bomb = bomb1; });
>+  TestOp([&]() { bomb = std::move(bomb1); });
>+
>+  // Test that when assignment throws, the assignment should fail (lhs != rhs)
>+  // and strong guarantee fails (lhs != lhs_copy).
>+  {
>+    ThrowingValue<> lhs(39), rhs(42);
>+    ThrowingValue<> lhs_copy(lhs);
>+    SetCountdown();
>+    EXPECT_THROW(lhs = rhs, TestException);
>+    UnsetCountdown();
>+    EXPECT_NE(lhs, rhs);
>+    EXPECT_NE(lhs_copy, lhs);
>+  }
>+  {
>+    ThrowingValue<> lhs(39), rhs(42);
>+    ThrowingValue<> lhs_copy(lhs), rhs_copy(rhs);
>+    SetCountdown();
>+    EXPECT_THROW(lhs = std::move(rhs), TestException);
>+    UnsetCountdown();
>+    EXPECT_NE(lhs, rhs_copy);
>+    EXPECT_NE(lhs_copy, lhs);
>+  }
>+}
>+
>+TEST(ThrowingValueTest, ThrowingComparisons) {
>+  ThrowingValue<> bomb1, bomb2;
>+  TestOp([&]() { return bomb1 == bomb2; });
>+  TestOp([&]() { return bomb1 != bomb2; });
>+  TestOp([&]() { return bomb1 < bomb2; });
>+  TestOp([&]() { return bomb1 <= bomb2; });
>+  TestOp([&]() { return bomb1 > bomb2; });
>+  TestOp([&]() { return bomb1 >= bomb2; });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingArithmeticOps) {
>+  ThrowingValue<> bomb1(1), bomb2(2);
>+
>+  TestOp([&bomb1]() { +bomb1; });
>+  TestOp([&bomb1]() { -bomb1; });
>+  TestOp([&bomb1]() { ++bomb1; });
>+  TestOp([&bomb1]() { bomb1++; });
>+  TestOp([&bomb1]() { --bomb1; });
>+  TestOp([&bomb1]() { bomb1--; });
>+
>+  TestOp([&]() { bomb1 + bomb2; });
>+  TestOp([&]() { bomb1 - bomb2; });
>+  TestOp([&]() { bomb1* bomb2; });
>+  TestOp([&]() { bomb1 / bomb2; });
>+  TestOp([&]() { bomb1 << 1; });
>+  TestOp([&]() { bomb1 >> 1; });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingLogicalOps) {
>+  ThrowingValue<> bomb1, bomb2;
>+
>+  TestOp([&bomb1]() { !bomb1; });
>+  TestOp([&]() { bomb1&& bomb2; });
>+  TestOp([&]() { bomb1 || bomb2; });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingBitwiseOps) {
>+  ThrowingValue<> bomb1, bomb2;
>+
>+  TestOp([&bomb1]() { ~bomb1; });
>+  TestOp([&]() { bomb1& bomb2; });
>+  TestOp([&]() { bomb1 | bomb2; });
>+  TestOp([&]() { bomb1 ^ bomb2; });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingCompoundAssignmentOps) {
>+  ThrowingValue<> bomb1(1), bomb2(2);
>+
>+  TestOp([&]() { bomb1 += bomb2; });
>+  TestOp([&]() { bomb1 -= bomb2; });
>+  TestOp([&]() { bomb1 *= bomb2; });
>+  TestOp([&]() { bomb1 /= bomb2; });
>+  TestOp([&]() { bomb1 %= bomb2; });
>+  TestOp([&]() { bomb1 &= bomb2; });
>+  TestOp([&]() { bomb1 |= bomb2; });
>+  TestOp([&]() { bomb1 ^= bomb2; });
>+  TestOp([&]() { bomb1 *= bomb2; });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingStreamOps) {
>+  ThrowingValue<> bomb;
>+
>+  TestOp([&]() {
>+    std::istringstream stream;
>+    stream >> bomb;
>+  });
>+  TestOp([&]() {
>+    std::stringstream stream;
>+    stream << bomb;
>+  });
>+}
>+
>+// Tests the operator<< of ThrowingValue by forcing ConstructorTracker to emit
>+// a nonfatal failure that contains the std::string representation of the Thrower
>+TEST(ThrowingValueTest, StreamOpsOutput) {
>+  using ::testing::TypeSpec;
>+  exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown);
>+
>+  // Test default spec list (kEverythingThrows)
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        using Thrower = ThrowingValue<TypeSpec{}>;
>+        auto thrower = Thrower(123);
>+        thrower.~Thrower();
>+      },
>+      "ThrowingValue<>(123)");
>+
>+  // Test with one item in spec list (kNoThrowCopy)
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        using Thrower = ThrowingValue<TypeSpec::kNoThrowCopy>;
>+        auto thrower = Thrower(234);
>+        thrower.~Thrower();
>+      },
>+      "ThrowingValue<kNoThrowCopy>(234)");
>+
>+  // Test with multiple items in spec list (kNoThrowMove, kNoThrowNew)
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        using Thrower =
>+            ThrowingValue<TypeSpec::kNoThrowMove | TypeSpec::kNoThrowNew>;
>+        auto thrower = Thrower(345);
>+        thrower.~Thrower();
>+      },
>+      "ThrowingValue<kNoThrowMove | kNoThrowNew>(345)");
>+
>+  // Test with all items in spec list (kNoThrowCopy, kNoThrowMove, kNoThrowNew)
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        using Thrower = ThrowingValue<static_cast<TypeSpec>(-1)>;
>+        auto thrower = Thrower(456);
>+        thrower.~Thrower();
>+      },
>+      "ThrowingValue<kNoThrowCopy | kNoThrowMove | kNoThrowNew>(456)");
>+}
>+
>+template <typename F>
>+void TestAllocatingOp(const F& f) {
>+  ExpectNoThrow(f);
>+
>+  SetCountdown();
>+  EXPECT_THROW(f(), exceptions_internal::TestBadAllocException);
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, ThrowingAllocatingOps) {
>+  // make_unique calls unqualified operator new, so these exercise the
>+  // ThrowingValue overloads.
>+  TestAllocatingOp([]() { return absl::make_unique<ThrowingValue<>>(1); });
>+  TestAllocatingOp([]() { return absl::make_unique<ThrowingValue<>[]>(2); });
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingMoveCtor) {
>+  ThrowingValue<TypeSpec::kNoThrowMove> nothrow_ctor;
>+
>+  SetCountdown();
>+  ExpectNoThrow([&nothrow_ctor]() {
>+    ThrowingValue<TypeSpec::kNoThrowMove> nothrow1 = std::move(nothrow_ctor);
>+  });
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingMoveAssign) {
>+  ThrowingValue<TypeSpec::kNoThrowMove> nothrow_assign1, nothrow_assign2;
>+
>+  SetCountdown();
>+  ExpectNoThrow([&nothrow_assign1, &nothrow_assign2]() {
>+    nothrow_assign1 = std::move(nothrow_assign2);
>+  });
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, ThrowingCopyCtor) {
>+  ThrowingValue<> tv;
>+
>+  TestOp([&]() { ThrowingValue<> tv_copy(tv); });
>+}
>+
>+TEST(ThrowingValueTest, ThrowingCopyAssign) {
>+  ThrowingValue<> tv1, tv2;
>+
>+  TestOp([&]() { tv1 = tv2; });
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingCopyCtor) {
>+  ThrowingValue<TypeSpec::kNoThrowCopy> nothrow_ctor;
>+
>+  SetCountdown();
>+  ExpectNoThrow([&nothrow_ctor]() {
>+    ThrowingValue<TypeSpec::kNoThrowCopy> nothrow1(nothrow_ctor);
>+  });
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingCopyAssign) {
>+  ThrowingValue<TypeSpec::kNoThrowCopy> nothrow_assign1, nothrow_assign2;
>+
>+  SetCountdown();
>+  ExpectNoThrow([&nothrow_assign1, &nothrow_assign2]() {
>+    nothrow_assign1 = nothrow_assign2;
>+  });
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, ThrowingSwap) {
>+  ThrowingValue<> bomb1, bomb2;
>+  TestOp([&]() { std::swap(bomb1, bomb2); });
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingSwap) {
>+  ThrowingValue<TypeSpec::kNoThrowMove> bomb1, bomb2;
>+  ExpectNoThrow([&]() { std::swap(bomb1, bomb2); });
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingAllocation) {
>+  ThrowingValue<TypeSpec::kNoThrowNew>* allocated;
>+  ThrowingValue<TypeSpec::kNoThrowNew>* array;
>+
>+  ExpectNoThrow([&allocated]() {
>+    allocated = new ThrowingValue<TypeSpec::kNoThrowNew>(1);
>+    delete allocated;
>+  });
>+  ExpectNoThrow([&array]() {
>+    array = new ThrowingValue<TypeSpec::kNoThrowNew>[2];
>+    delete[] array;
>+  });
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingDelete) {
>+  auto* allocated = new ThrowingValue<>(1);
>+  auto* array = new ThrowingValue<>[2];
>+
>+  SetCountdown();
>+  ExpectNoThrow([allocated]() { delete allocated; });
>+  SetCountdown();
>+  ExpectNoThrow([array]() { delete[] array; });
>+
>+  UnsetCountdown();
>+}
>+
>+using Storage =
>+    absl::aligned_storage_t<sizeof(ThrowingValue<>), alignof(ThrowingValue<>)>;
>+
>+TEST(ThrowingValueTest, NonThrowingPlacementDelete) {
>+  constexpr int kArrayLen = 2;
>+  // We intentionally create extra space to store the tag allocated by placement
>+  // new[].
>+  constexpr int kStorageLen = 4;
>+
>+  Storage buf;
>+  Storage array_buf[kStorageLen];
>+  auto* placed = new (&buf) ThrowingValue<>(1);
>+  auto placed_array = new (&array_buf) ThrowingValue<>[kArrayLen];
>+
>+  SetCountdown();
>+  ExpectNoThrow([placed, &buf]() {
>+    placed->~ThrowingValue<>();
>+    ThrowingValue<>::operator delete(placed, &buf);
>+  });
>+
>+  SetCountdown();
>+  ExpectNoThrow([&, placed_array]() {
>+    for (int i = 0; i < kArrayLen; ++i) placed_array[i].~ThrowingValue<>();
>+    ThrowingValue<>::operator delete[](placed_array, &array_buf);
>+  });
>+
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingValueTest, NonThrowingDestructor) {
>+  auto* allocated = new ThrowingValue<>();
>+
>+  SetCountdown();
>+  ExpectNoThrow([allocated]() { delete allocated; });
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingBoolTest, ThrowingBool) {
>+  ThrowingBool t = true;
>+
>+  // Test that it's contextually convertible to bool
>+  if (t) {  // NOLINT(whitespace/empty_if_body)
>+  }
>+  EXPECT_TRUE(t);
>+
>+  TestOp([&]() { (void)!t; });
>+}
>+
>+TEST(ThrowingAllocatorTest, MemoryManagement) {
>+  // Just exercise the memory management capabilities under LSan to make sure we
>+  // don't leak.
>+  ThrowingAllocator<int> int_alloc;
>+  int* ip = int_alloc.allocate(1);
>+  int_alloc.deallocate(ip, 1);
>+  int* i_array = int_alloc.allocate(2);
>+  int_alloc.deallocate(i_array, 2);
>+
>+  ThrowingAllocator<ThrowingValue<>> tv_alloc;
>+  ThrowingValue<>* ptr = tv_alloc.allocate(1);
>+  tv_alloc.deallocate(ptr, 1);
>+  ThrowingValue<>* tv_array = tv_alloc.allocate(2);
>+  tv_alloc.deallocate(tv_array, 2);
>+}
>+
>+TEST(ThrowingAllocatorTest, CallsGlobalNew) {
>+  ThrowingAllocator<ThrowingValue<>, AllocSpec::kNoThrowAllocate> nothrow_alloc;
>+  ThrowingValue<>* ptr;
>+
>+  SetCountdown();
>+  // This will only throw if ThrowingValue::new is called.
>+  ExpectNoThrow([&]() { ptr = nothrow_alloc.allocate(1); });
>+  nothrow_alloc.deallocate(ptr, 1);
>+
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingAllocatorTest, ThrowingConstructors) {
>+  ThrowingAllocator<int> int_alloc;
>+  int* ip = nullptr;
>+
>+  SetCountdown();
>+  EXPECT_THROW(ip = int_alloc.allocate(1), TestException);
>+  ExpectNoThrow([&]() { ip = int_alloc.allocate(1); });
>+
>+  *ip = 1;
>+  SetCountdown();
>+  EXPECT_THROW(int_alloc.construct(ip, 2), TestException);
>+  EXPECT_EQ(*ip, 1);
>+  int_alloc.deallocate(ip, 1);
>+
>+  UnsetCountdown();
>+}
>+
>+TEST(ThrowingAllocatorTest, NonThrowingConstruction) {
>+  {
>+    ThrowingAllocator<int, AllocSpec::kNoThrowAllocate> int_alloc;
>+    int* ip = nullptr;
>+
>+    SetCountdown();
>+    ExpectNoThrow([&]() { ip = int_alloc.allocate(1); });
>+
>+    SetCountdown();
>+    ExpectNoThrow([&]() { int_alloc.construct(ip, 2); });
>+
>+    EXPECT_EQ(*ip, 2);
>+    int_alloc.deallocate(ip, 1);
>+
>+    UnsetCountdown();
>+  }
>+
>+  {
>+    ThrowingAllocator<int> int_alloc;
>+    int* ip = nullptr;
>+    ExpectNoThrow([&]() { ip = int_alloc.allocate(1); });
>+    ExpectNoThrow([&]() { int_alloc.construct(ip, 2); });
>+    EXPECT_EQ(*ip, 2);
>+    int_alloc.deallocate(ip, 1);
>+  }
>+
>+  {
>+    ThrowingAllocator<ThrowingValue<>, AllocSpec::kNoThrowAllocate>
>+        nothrow_alloc;
>+    ThrowingValue<>* ptr;
>+
>+    SetCountdown();
>+    ExpectNoThrow([&]() { ptr = nothrow_alloc.allocate(1); });
>+
>+    SetCountdown();
>+    ExpectNoThrow(
>+        [&]() { nothrow_alloc.construct(ptr, 2, testing::nothrow_ctor); });
>+
>+    EXPECT_EQ(ptr->Get(), 2);
>+    nothrow_alloc.destroy(ptr);
>+    nothrow_alloc.deallocate(ptr, 1);
>+
>+    UnsetCountdown();
>+  }
>+
>+  {
>+    ThrowingAllocator<int> a;
>+
>+    SetCountdown();
>+    ExpectNoThrow([&]() { ThrowingAllocator<double> a1 = a; });
>+
>+    SetCountdown();
>+    ExpectNoThrow([&]() { ThrowingAllocator<double> a1 = std::move(a); });
>+
>+    UnsetCountdown();
>+  }
>+}
>+
>+TEST(ThrowingAllocatorTest, ThrowingAllocatorConstruction) {
>+  ThrowingAllocator<int> a;
>+  TestOp([]() { ThrowingAllocator<int> a; });
>+  TestOp([&]() { a.select_on_container_copy_construction(); });
>+}
>+
>+TEST(ThrowingAllocatorTest, State) {
>+  ThrowingAllocator<int> a1, a2;
>+  EXPECT_NE(a1, a2);
>+
>+  auto a3 = a1;
>+  EXPECT_EQ(a3, a1);
>+  int* ip = a1.allocate(1);
>+  EXPECT_EQ(a3, a1);
>+  a3.deallocate(ip, 1);
>+  EXPECT_EQ(a3, a1);
>+}
>+
>+TEST(ThrowingAllocatorTest, InVector) {
>+  std::vector<ThrowingValue<>, ThrowingAllocator<ThrowingValue<>>> v;
>+  for (int i = 0; i < 20; ++i) v.push_back({});
>+  for (int i = 0; i < 20; ++i) v.pop_back();
>+}
>+
>+TEST(ThrowingAllocatorTest, InList) {
>+  std::list<ThrowingValue<>, ThrowingAllocator<ThrowingValue<>>> l;
>+  for (int i = 0; i < 20; ++i) l.push_back({});
>+  for (int i = 0; i < 20; ++i) l.pop_back();
>+  for (int i = 0; i < 20; ++i) l.push_front({});
>+  for (int i = 0; i < 20; ++i) l.pop_front();
>+}
>+
>+template <typename TesterInstance, typename = void>
>+struct NullaryTestValidator : public std::false_type {};
>+
>+template <typename TesterInstance>
>+struct NullaryTestValidator<
>+    TesterInstance,
>+    absl::void_t<decltype(std::declval<TesterInstance>().Test())>>
>+    : public std::true_type {};
>+
>+template <typename TesterInstance>
>+bool HasNullaryTest(const TesterInstance&) {
>+  return NullaryTestValidator<TesterInstance>::value;
>+}
>+
>+void DummyOp(void*) {}
>+
>+template <typename TesterInstance, typename = void>
>+struct UnaryTestValidator : public std::false_type {};
>+
>+template <typename TesterInstance>
>+struct UnaryTestValidator<
>+    TesterInstance,
>+    absl::void_t<decltype(std::declval<TesterInstance>().Test(DummyOp))>>
>+    : public std::true_type {};
>+
>+template <typename TesterInstance>
>+bool HasUnaryTest(const TesterInstance&) {
>+  return UnaryTestValidator<TesterInstance>::value;
>+}
>+
>+TEST(ExceptionSafetyTesterTest, IncompleteTypesAreNotTestable) {
>+  using T = exceptions_internal::UninitializedT;
>+  auto op = [](T* t) {};
>+  auto inv = [](T*) { return testing::AssertionSuccess(); };
>+  auto fac = []() { return absl::make_unique<T>(); };
>+
>+  // Test that providing operation and inveriants still does not allow for the
>+  // the invocation of .Test() and .Test(op) because it lacks a factory
>+  auto without_fac =
>+      testing::MakeExceptionSafetyTester().WithOperation(op).WithInvariants(
>+          inv, testing::strong_guarantee);
>+  EXPECT_FALSE(HasNullaryTest(without_fac));
>+  EXPECT_FALSE(HasUnaryTest(without_fac));
>+
>+  // Test that providing invariants and factory allows the invocation of
>+  // .Test(op) but does not allow for .Test() because it lacks an operation
>+  auto without_op = testing::MakeExceptionSafetyTester()
>+                        .WithInvariants(inv, testing::strong_guarantee)
>+                        .WithFactory(fac);
>+  EXPECT_FALSE(HasNullaryTest(without_op));
>+  EXPECT_TRUE(HasUnaryTest(without_op));
>+
>+  // Test that providing operation and factory still does not allow for the
>+  // the invocation of .Test() and .Test(op) because it lacks invariants
>+  auto without_inv =
>+      testing::MakeExceptionSafetyTester().WithOperation(op).WithFactory(fac);
>+  EXPECT_FALSE(HasNullaryTest(without_inv));
>+  EXPECT_FALSE(HasUnaryTest(without_inv));
>+}
>+
>+struct ExampleStruct {};
>+
>+std::unique_ptr<ExampleStruct> ExampleFunctionFactory() {
>+  return absl::make_unique<ExampleStruct>();
>+}
>+
>+void ExampleFunctionOperation(ExampleStruct*) {}
>+
>+testing::AssertionResult ExampleFunctionInvariant(ExampleStruct*) {
>+  return testing::AssertionSuccess();
>+}
>+
>+struct {
>+  std::unique_ptr<ExampleStruct> operator()() const {
>+    return ExampleFunctionFactory();
>+  }
>+} example_struct_factory;
>+
>+struct {
>+  void operator()(ExampleStruct*) const {}
>+} example_struct_operation;
>+
>+struct {
>+  testing::AssertionResult operator()(ExampleStruct* example_struct) const {
>+    return ExampleFunctionInvariant(example_struct);
>+  }
>+} example_struct_invariant;
>+
>+auto example_lambda_factory = []() { return ExampleFunctionFactory(); };
>+
>+auto example_lambda_operation = [](ExampleStruct*) {};
>+
>+auto example_lambda_invariant = [](ExampleStruct* example_struct) {
>+  return ExampleFunctionInvariant(example_struct);
>+};
>+
>+// Testing that function references, pointers, structs with operator() and
>+// lambdas can all be used with ExceptionSafetyTester
>+TEST(ExceptionSafetyTesterTest, MixedFunctionTypes) {
>+  // function reference
>+  EXPECT_TRUE(testing::MakeExceptionSafetyTester()
>+                  .WithFactory(ExampleFunctionFactory)
>+                  .WithOperation(ExampleFunctionOperation)
>+                  .WithInvariants(ExampleFunctionInvariant)
>+                  .Test());
>+
>+  // function pointer
>+  EXPECT_TRUE(testing::MakeExceptionSafetyTester()
>+                  .WithFactory(&ExampleFunctionFactory)
>+                  .WithOperation(&ExampleFunctionOperation)
>+                  .WithInvariants(&ExampleFunctionInvariant)
>+                  .Test());
>+
>+  // struct
>+  EXPECT_TRUE(testing::MakeExceptionSafetyTester()
>+                  .WithFactory(example_struct_factory)
>+                  .WithOperation(example_struct_operation)
>+                  .WithInvariants(example_struct_invariant)
>+                  .Test());
>+
>+  // lambda
>+  EXPECT_TRUE(testing::MakeExceptionSafetyTester()
>+                  .WithFactory(example_lambda_factory)
>+                  .WithOperation(example_lambda_operation)
>+                  .WithInvariants(example_lambda_invariant)
>+                  .Test());
>+}
>+
>+struct NonNegative {
>+  bool operator==(const NonNegative& other) const { return i == other.i; }
>+  int i;
>+};
>+
>+testing::AssertionResult CheckNonNegativeInvariants(NonNegative* g) {
>+  if (g->i >= 0) {
>+    return testing::AssertionSuccess();
>+  }
>+  return testing::AssertionFailure()
>+         << "i should be non-negative but is " << g->i;
>+}
>+
>+struct {
>+  template <typename T>
>+  void operator()(T* t) const {
>+    (*t)();
>+  }
>+} invoker;
>+
>+auto tester =
>+    testing::MakeExceptionSafetyTester().WithOperation(invoker).WithInvariants(
>+        CheckNonNegativeInvariants);
>+auto strong_tester = tester.WithInvariants(testing::strong_guarantee);
>+
>+struct FailsBasicGuarantee : public NonNegative {
>+  void operator()() {
>+    --i;
>+    ThrowingValue<> bomb;
>+    ++i;
>+  }
>+};
>+
>+TEST(ExceptionCheckTest, BasicGuaranteeFailure) {
>+  EXPECT_FALSE(tester.WithInitialValue(FailsBasicGuarantee{}).Test());
>+}
>+
>+struct FollowsBasicGuarantee : public NonNegative {
>+  void operator()() {
>+    ++i;
>+    ThrowingValue<> bomb;
>+  }
>+};
>+
>+TEST(ExceptionCheckTest, BasicGuarantee) {
>+  EXPECT_TRUE(tester.WithInitialValue(FollowsBasicGuarantee{}).Test());
>+}
>+
>+TEST(ExceptionCheckTest, StrongGuaranteeFailure) {
>+  EXPECT_FALSE(strong_tester.WithInitialValue(FailsBasicGuarantee{}).Test());
>+  EXPECT_FALSE(strong_tester.WithInitialValue(FollowsBasicGuarantee{}).Test());
>+}
>+
>+struct BasicGuaranteeWithExtraInvariants : public NonNegative {
>+  // After operator(), i is incremented.  If operator() throws, i is set to 9999
>+  void operator()() {
>+    int old_i = i;
>+    i = kExceptionSentinel;
>+    ThrowingValue<> bomb;
>+    i = ++old_i;
>+  }
>+
>+  static constexpr int kExceptionSentinel = 9999;
>+};
>+constexpr int BasicGuaranteeWithExtraInvariants::kExceptionSentinel;
>+
>+TEST(ExceptionCheckTest, BasicGuaranteeWithExtraInvariants) {
>+  auto tester_with_val =
>+      tester.WithInitialValue(BasicGuaranteeWithExtraInvariants{});
>+  EXPECT_TRUE(tester_with_val.Test());
>+  EXPECT_TRUE(
>+      tester_with_val
>+          .WithInvariants([](BasicGuaranteeWithExtraInvariants* o) {
>+            if (o->i == BasicGuaranteeWithExtraInvariants::kExceptionSentinel) {
>+              return testing::AssertionSuccess();
>+            }
>+            return testing::AssertionFailure()
>+                   << "i should be "
>+                   << BasicGuaranteeWithExtraInvariants::kExceptionSentinel
>+                   << ", but is " << o->i;
>+          })
>+          .Test());
>+}
>+
>+struct FollowsStrongGuarantee : public NonNegative {
>+  void operator()() { ThrowingValue<> bomb; }
>+};
>+
>+TEST(ExceptionCheckTest, StrongGuarantee) {
>+  EXPECT_TRUE(tester.WithInitialValue(FollowsStrongGuarantee{}).Test());
>+  EXPECT_TRUE(strong_tester.WithInitialValue(FollowsStrongGuarantee{}).Test());
>+}
>+
>+struct HasReset : public NonNegative {
>+  void operator()() {
>+    i = -1;
>+    ThrowingValue<> bomb;
>+    i = 1;
>+  }
>+
>+  void reset() { i = 0; }
>+};
>+
>+testing::AssertionResult CheckHasResetInvariants(HasReset* h) {
>+  h->reset();
>+  return testing::AssertionResult(h->i == 0);
>+}
>+
>+TEST(ExceptionCheckTest, ModifyingChecker) {
>+  auto set_to_1000 = [](FollowsBasicGuarantee* g) {
>+    g->i = 1000;
>+    return testing::AssertionSuccess();
>+  };
>+  auto is_1000 = [](FollowsBasicGuarantee* g) {
>+    return testing::AssertionResult(g->i == 1000);
>+  };
>+  auto increment = [](FollowsStrongGuarantee* g) {
>+    ++g->i;
>+    return testing::AssertionSuccess();
>+  };
>+
>+  EXPECT_FALSE(tester.WithInitialValue(FollowsBasicGuarantee{})
>+                   .WithInvariants(set_to_1000, is_1000)
>+                   .Test());
>+  EXPECT_TRUE(strong_tester.WithInitialValue(FollowsStrongGuarantee{})
>+                  .WithInvariants(increment)
>+                  .Test());
>+  EXPECT_TRUE(testing::MakeExceptionSafetyTester()
>+                  .WithInitialValue(HasReset{})
>+                  .WithInvariants(CheckHasResetInvariants)
>+                  .Test(invoker));
>+}
>+
>+struct NonCopyable : public NonNegative {
>+  NonCopyable(const NonCopyable&) = delete;
>+  NonCopyable() : NonNegative{0} {}
>+
>+  void operator()() { ThrowingValue<> bomb; }
>+};
>+
>+TEST(ExceptionCheckTest, NonCopyable) {
>+  auto factory = []() { return absl::make_unique<NonCopyable>(); };
>+  EXPECT_TRUE(tester.WithFactory(factory).Test());
>+  EXPECT_TRUE(strong_tester.WithFactory(factory).Test());
>+}
>+
>+struct NonEqualityComparable : public NonNegative {
>+  void operator()() { ThrowingValue<> bomb; }
>+
>+  void ModifyOnThrow() {
>+    ++i;
>+    ThrowingValue<> bomb;
>+    static_cast<void>(bomb);
>+    --i;
>+  }
>+};
>+
>+TEST(ExceptionCheckTest, NonEqualityComparable) {
>+  auto nec_is_strong = [](NonEqualityComparable* nec) {
>+    return testing::AssertionResult(nec->i == NonEqualityComparable().i);
>+  };
>+  auto strong_nec_tester = tester.WithInitialValue(NonEqualityComparable{})
>+                               .WithInvariants(nec_is_strong);
>+
>+  EXPECT_TRUE(strong_nec_tester.Test());
>+  EXPECT_FALSE(strong_nec_tester.Test(
>+      [](NonEqualityComparable* n) { n->ModifyOnThrow(); }));
>+}
>+
>+template <typename T>
>+struct ExhaustivenessTester {
>+  void operator()() {
>+    successes |= 1;
>+    T b1;
>+    static_cast<void>(b1);
>+    successes |= (1 << 1);
>+    T b2;
>+    static_cast<void>(b2);
>+    successes |= (1 << 2);
>+    T b3;
>+    static_cast<void>(b3);
>+    successes |= (1 << 3);
>+  }
>+
>+  bool operator==(const ExhaustivenessTester<ThrowingValue<>>&) const {
>+    return true;
>+  }
>+
>+  static unsigned char successes;
>+};
>+
>+struct {
>+  template <typename T>
>+  testing::AssertionResult operator()(ExhaustivenessTester<T>*) const {
>+    return testing::AssertionSuccess();
>+  }
>+} CheckExhaustivenessTesterInvariants;
>+
>+template <typename T>
>+unsigned char ExhaustivenessTester<T>::successes = 0;
>+
>+TEST(ExceptionCheckTest, Exhaustiveness) {
>+  auto exhaust_tester = testing::MakeExceptionSafetyTester()
>+                            .WithInvariants(CheckExhaustivenessTesterInvariants)
>+                            .WithOperation(invoker);
>+
>+  EXPECT_TRUE(
>+      exhaust_tester.WithInitialValue(ExhaustivenessTester<int>{}).Test());
>+  EXPECT_EQ(ExhaustivenessTester<int>::successes, 0xF);
>+
>+  EXPECT_TRUE(
>+      exhaust_tester.WithInitialValue(ExhaustivenessTester<ThrowingValue<>>{})
>+          .WithInvariants(testing::strong_guarantee)
>+          .Test());
>+  EXPECT_EQ(ExhaustivenessTester<ThrowingValue<>>::successes, 0xF);
>+}
>+
>+struct LeaksIfCtorThrows : private exceptions_internal::TrackedObject {
>+  LeaksIfCtorThrows() : TrackedObject(ABSL_PRETTY_FUNCTION) {
>+    ++counter;
>+    ThrowingValue<> v;
>+    static_cast<void>(v);
>+    --counter;
>+  }
>+  LeaksIfCtorThrows(const LeaksIfCtorThrows&) noexcept
>+      : TrackedObject(ABSL_PRETTY_FUNCTION) {}
>+  static int counter;
>+};
>+int LeaksIfCtorThrows::counter = 0;
>+
>+TEST(ExceptionCheckTest, TestLeakyCtor) {
>+  testing::TestThrowingCtor<LeaksIfCtorThrows>();
>+  EXPECT_EQ(LeaksIfCtorThrows::counter, 1);
>+  LeaksIfCtorThrows::counter = 0;
>+}
>+
>+struct Tracked : private exceptions_internal::TrackedObject {
>+  Tracked() : TrackedObject(ABSL_PRETTY_FUNCTION) {}
>+};
>+
>+TEST(ConstructorTrackerTest, CreatedBefore) {
>+  Tracked a, b, c;
>+  exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown);
>+}
>+
>+TEST(ConstructorTrackerTest, CreatedAfter) {
>+  exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown);
>+  Tracked a, b, c;
>+}
>+
>+TEST(ConstructorTrackerTest, NotDestroyedAfter) {
>+  absl::aligned_storage_t<sizeof(Tracked), alignof(Tracked)> storage;
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        exceptions_internal::ConstructorTracker ct(
>+            exceptions_internal::countdown);
>+        new (&storage) Tracked;
>+      },
>+      "not destroyed");
>+}
>+
>+TEST(ConstructorTrackerTest, DestroyedTwice) {
>+  exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown);
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        Tracked t;
>+        t.~Tracked();
>+      },
>+      "re-destroyed");
>+}
>+
>+TEST(ConstructorTrackerTest, ConstructedTwice) {
>+  exceptions_internal::ConstructorTracker ct(exceptions_internal::countdown);
>+  absl::aligned_storage_t<sizeof(Tracked), alignof(Tracked)> storage;
>+  EXPECT_NONFATAL_FAILURE(
>+      {
>+        new (&storage) Tracked;
>+        new (&storage) Tracked;
>+        reinterpret_cast<Tracked*>(&storage)->~Tracked();
>+      },
>+      "re-constructed");
>+}
>+
>+TEST(ThrowingValueTraitsTest, RelationalOperators) {
>+  ThrowingValue<> a, b;
>+  EXPECT_TRUE((std::is_convertible<decltype(a == b), bool>::value));
>+  EXPECT_TRUE((std::is_convertible<decltype(a != b), bool>::value));
>+  EXPECT_TRUE((std::is_convertible<decltype(a < b), bool>::value));
>+  EXPECT_TRUE((std::is_convertible<decltype(a <= b), bool>::value));
>+  EXPECT_TRUE((std::is_convertible<decltype(a > b), bool>::value));
>+  EXPECT_TRUE((std::is_convertible<decltype(a >= b), bool>::value));
>+}
>+
>+TEST(ThrowingAllocatorTraitsTest, Assignablility) {
>+  EXPECT_TRUE(std::is_move_assignable<ThrowingAllocator<int>>::value);
>+  EXPECT_TRUE(std::is_copy_assignable<ThrowingAllocator<int>>::value);
>+  EXPECT_TRUE(std::is_nothrow_move_assignable<ThrowingAllocator<int>>::value);
>+  EXPECT_TRUE(std::is_nothrow_copy_assignable<ThrowingAllocator<int>>::value);
>+}
>+
>+}  // namespace
>+
>+}  // namespace testing
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..5499189a3da96a33b06b2670a724107c3d673a5f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test.cc
>@@ -0,0 +1,62 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <type_traits>
>+
>+#include "absl/base/internal/inline_variable.h"
>+#include "absl/base/internal/inline_variable_testing.h"
>+
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace inline_variable_testing_internal {
>+namespace {
>+
>+TEST(InlineVariableTest, Constexpr) {
>+  static_assert(inline_variable_foo.value == 5, "");
>+  static_assert(other_inline_variable_foo.value == 5, "");
>+  static_assert(inline_variable_int == 5, "");
>+  static_assert(other_inline_variable_int == 5, "");
>+}
>+
>+TEST(InlineVariableTest, DefaultConstructedIdentityEquality) {
>+  EXPECT_EQ(get_foo_a().value, 5);
>+  EXPECT_EQ(get_foo_b().value, 5);
>+  EXPECT_EQ(&get_foo_a(), &get_foo_b());
>+}
>+
>+TEST(InlineVariableTest, DefaultConstructedIdentityInequality) {
>+  EXPECT_NE(&inline_variable_foo, &other_inline_variable_foo);
>+}
>+
>+TEST(InlineVariableTest, InitializedIdentityEquality) {
>+  EXPECT_EQ(get_int_a(), 5);
>+  EXPECT_EQ(get_int_b(), 5);
>+  EXPECT_EQ(&get_int_a(), &get_int_b());
>+}
>+
>+TEST(InlineVariableTest, InitializedIdentityInequality) {
>+  EXPECT_NE(&inline_variable_int, &other_inline_variable_int);
>+}
>+
>+TEST(InlineVariableTest, FunPtrType) {
>+  static_assert(
>+      std::is_same<void(*)(),
>+                   std::decay<decltype(inline_variable_fun_ptr)>::type>::value,
>+      "");
>+}
>+
>+}  // namespace
>+}  // namespace inline_variable_testing_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a3bf3b68b3cfca4fa0209898c761bc26d788e167
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_a.cc
>@@ -0,0 +1,25 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/inline_variable_testing.h"
>+
>+namespace absl {
>+namespace inline_variable_testing_internal {
>+
>+const Foo& get_foo_a() { return inline_variable_foo; }
>+
>+const int& get_int_a() { return inline_variable_int; }
>+
>+}  // namespace inline_variable_testing_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b4b9393a5585cf58e51104d9219a8c99a09b79b5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/inline_variable_test_b.cc
>@@ -0,0 +1,25 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/inline_variable_testing.h"
>+
>+namespace absl {
>+namespace inline_variable_testing_internal {
>+
>+const Foo& get_foo_b() { return inline_variable_foo; }
>+
>+const int& get_int_b() { return inline_variable_int; }
>+
>+}  // namespace inline_variable_testing_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..b458511b0c734940d1ab181b8212c51be0354d7b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook.h
>@@ -0,0 +1,165 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_
>+#define ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_
>+
>+#include <atomic>
>+#include <cassert>
>+#include <cstdint>
>+#include <utility>
>+
>+#ifdef _MSC_FULL_VER
>+#define ABSL_HAVE_WORKING_ATOMIC_POINTER 0
>+#else
>+#define ABSL_HAVE_WORKING_ATOMIC_POINTER 1
>+#endif
>+
>+namespace absl {
>+namespace base_internal {
>+
>+template <typename T>
>+class AtomicHook;
>+
>+// AtomicHook is a helper class, templatized on a raw function pointer type, for
>+// implementing Abseil customization hooks.  It is a callable object that
>+// dispatches to the registered hook.
>+//
>+// A default constructed object performs a no-op (and returns a default
>+// constructed object) if no hook has been registered.
>+//
>+// Hooks can be pre-registered via constant initialization, for example,
>+// ABSL_CONST_INIT static AtomicHook<void(*)()> my_hook(DefaultAction);
>+// and then changed at runtime via a call to Store().
>+//
>+// Reads and writes guarantee memory_order_acquire/memory_order_release
>+// semantics.
>+template <typename ReturnType, typename... Args>
>+class AtomicHook<ReturnType (*)(Args...)> {
>+ public:
>+  using FnPtr = ReturnType (*)(Args...);
>+
>+  // Constructs an object that by default performs a no-op (and
>+  // returns a default constructed object) when no hook as been registered.
>+  constexpr AtomicHook() : AtomicHook(DummyFunction) {}
>+
>+  // Constructs an object that by default dispatches to/returns the
>+  // pre-registered default_fn when no hook has been registered at runtime.
>+#if ABSL_HAVE_WORKING_ATOMIC_POINTER
>+  explicit constexpr AtomicHook(FnPtr default_fn)
>+      : hook_(default_fn), default_fn_(default_fn) {}
>+#else
>+  explicit constexpr AtomicHook(FnPtr default_fn)
>+      : hook_(kUninitialized), default_fn_(default_fn) {}
>+#endif
>+
>+  // Stores the provided function pointer as the value for this hook.
>+  //
>+  // This is intended to be called once.  Multiple calls are legal only if the
>+  // same function pointer is provided for each call.  The store is implemented
>+  // as a memory_order_release operation, and read accesses are implemented as
>+  // memory_order_acquire.
>+  void Store(FnPtr fn) {
>+    bool success = DoStore(fn);
>+    static_cast<void>(success);
>+    assert(success);
>+  }
>+
>+  // Invokes the registered callback.  If no callback has yet been registered, a
>+  // default-constructed object of the appropriate type is returned instead.
>+  template <typename... CallArgs>
>+  ReturnType operator()(CallArgs&&... args) const {
>+    return DoLoad()(std::forward<CallArgs>(args)...);
>+  }
>+
>+  // Returns the registered callback, or nullptr if none has been registered.
>+  // Useful if client code needs to conditionalize behavior based on whether a
>+  // callback was registered.
>+  //
>+  // Note that atomic_hook.Load()() and atomic_hook() have different semantics:
>+  // operator()() will perform a no-op if no callback was registered, while
>+  // Load()() will dereference a null function pointer.  Prefer operator()() to
>+  // Load()() unless you must conditionalize behavior on whether a hook was
>+  // registered.
>+  FnPtr Load() const {
>+    FnPtr ptr = DoLoad();
>+    return (ptr == DummyFunction) ? nullptr : ptr;
>+  }
>+
>+ private:
>+  static ReturnType DummyFunction(Args...) {
>+    return ReturnType();
>+  }
>+
>+  // Current versions of MSVC (as of September 2017) have a broken
>+  // implementation of std::atomic<T*>:  Its constructor attempts to do the
>+  // equivalent of a reinterpret_cast in a constexpr context, which is not
>+  // allowed.
>+  //
>+  // This causes an issue when building with LLVM under Windows.  To avoid this,
>+  // we use a less-efficient, intptr_t-based implementation on Windows.
>+#if ABSL_HAVE_WORKING_ATOMIC_POINTER
>+  // Return the stored value, or DummyFunction if no value has been stored.
>+  FnPtr DoLoad() const { return hook_.load(std::memory_order_acquire); }
>+
>+  // Store the given value.  Returns false if a different value was already
>+  // stored to this object.
>+  bool DoStore(FnPtr fn) {
>+    assert(fn);
>+    FnPtr expected = default_fn_;
>+    const bool store_succeeded = hook_.compare_exchange_strong(
>+        expected, fn, std::memory_order_acq_rel, std::memory_order_acquire);
>+    const bool same_value_already_stored = (expected == fn);
>+    return store_succeeded || same_value_already_stored;
>+  }
>+
>+  std::atomic<FnPtr> hook_;
>+#else  // !ABSL_HAVE_WORKING_ATOMIC_POINTER
>+  // Use a sentinel value unlikely to be the address of an actual function.
>+  static constexpr intptr_t kUninitialized = 0;
>+
>+  static_assert(sizeof(intptr_t) >= sizeof(FnPtr),
>+                "intptr_t can't contain a function pointer");
>+
>+  FnPtr DoLoad() const {
>+    const intptr_t value = hook_.load(std::memory_order_acquire);
>+    if (value == kUninitialized) {
>+      return default_fn_;
>+    }
>+    return reinterpret_cast<FnPtr>(value);
>+  }
>+
>+  bool DoStore(FnPtr fn) {
>+    assert(fn);
>+    const auto value = reinterpret_cast<intptr_t>(fn);
>+    intptr_t expected = kUninitialized;
>+    const bool store_succeeded = hook_.compare_exchange_strong(
>+        expected, value, std::memory_order_acq_rel, std::memory_order_acquire);
>+    const bool same_value_already_stored = (expected == value);
>+    return store_succeeded || same_value_already_stored;
>+  }
>+
>+  std::atomic<intptr_t> hook_;
>+#endif
>+
>+  const FnPtr default_fn_;
>+};
>+
>+#undef ABSL_HAVE_WORKING_ATOMIC_POINTER
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_ATOMIC_HOOK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf7407573a52b47f326a9ca012e47dedbaf7bad7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/atomic_hook_test.cc
>@@ -0,0 +1,70 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/atomic_hook.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+
>+namespace {
>+
>+int value = 0;
>+void TestHook(int x) { value = x; }
>+
>+TEST(AtomicHookTest, NoDefaultFunction) {
>+  ABSL_CONST_INIT static absl::base_internal::AtomicHook<void(*)(int)> hook;
>+  value = 0;
>+
>+  // Test the default DummyFunction.
>+  EXPECT_TRUE(hook.Load() == nullptr);
>+  EXPECT_EQ(value, 0);
>+  hook(1);
>+  EXPECT_EQ(value, 0);
>+
>+  // Test a stored hook.
>+  hook.Store(TestHook);
>+  EXPECT_TRUE(hook.Load() == TestHook);
>+  EXPECT_EQ(value, 0);
>+  hook(1);
>+  EXPECT_EQ(value, 1);
>+
>+  // Calling Store() with the same hook should not crash.
>+  hook.Store(TestHook);
>+  EXPECT_TRUE(hook.Load() == TestHook);
>+  EXPECT_EQ(value, 1);
>+  hook(2);
>+  EXPECT_EQ(value, 2);
>+}
>+
>+TEST(AtomicHookTest, WithDefaultFunction) {
>+  // Set the default value to TestHook at compile-time.
>+  ABSL_CONST_INIT static absl::base_internal::AtomicHook<void (*)(int)> hook(
>+      TestHook);
>+  value = 0;
>+
>+  // Test the default value is TestHook.
>+  EXPECT_TRUE(hook.Load() == TestHook);
>+  EXPECT_EQ(value, 0);
>+  hook(1);
>+  EXPECT_EQ(value, 1);
>+
>+  // Calling Store() with the same hook should not crash.
>+  hook.Store(TestHook);
>+  EXPECT_TRUE(hook.Load() == TestHook);
>+  EXPECT_EQ(value, 1);
>+  hook(2);
>+  EXPECT_EQ(value, 2);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a742df01f94a71cd4cf2a50bd00f16c69a816161
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.cc
>@@ -0,0 +1,81 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// The implementation of CycleClock::Frequency.
>+//
>+// NOTE: only i386 and x86_64 have been well tested.
>+// PPC, sparc, alpha, and ia64 are based on
>+//    http://peter.kuscsik.com/wordpress/?p=14
>+// with modifications by m3b.  See also
>+//    https://setisvn.ssl.berkeley.edu/svn/lib/fftw-3.0.1/kernel/cycle.h
>+
>+#include "absl/base/internal/cycleclock.h"
>+
>+#include <chrono>  // NOLINT(build/c++11)
>+
>+#include "absl/base/internal/unscaledcycleclock.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+#if ABSL_USE_UNSCALED_CYCLECLOCK
>+
>+namespace {
>+
>+#ifdef NDEBUG
>+#ifdef ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY
>+// Not debug mode and the UnscaledCycleClock frequency is the CPU
>+// frequency.  Scale the CycleClock to prevent overflow if someone
>+// tries to represent the time as cycles since the Unix epoch.
>+static constexpr int32_t kShift = 1;
>+#else
>+// Not debug mode and the UnscaledCycleClock isn't operating at the
>+// raw CPU frequency. There is no need to do any scaling, so don't
>+// needlessly sacrifice precision.
>+static constexpr int32_t kShift = 0;
>+#endif
>+#else
>+// In debug mode use a different shift to discourage depending on a
>+// particular shift value.
>+static constexpr int32_t kShift = 2;
>+#endif
>+
>+static constexpr double kFrequencyScale = 1.0 / (1 << kShift);
>+
>+}  // namespace
>+
>+int64_t CycleClock::Now() {
>+  return base_internal::UnscaledCycleClock::Now() >> kShift;
>+}
>+
>+double CycleClock::Frequency() {
>+  return kFrequencyScale * base_internal::UnscaledCycleClock::Frequency();
>+}
>+
>+#else
>+
>+int64_t CycleClock::Now() {
>+  return std::chrono::duration_cast<std::chrono::nanoseconds>(
>+             std::chrono::steady_clock::now().time_since_epoch())
>+      .count();
>+}
>+
>+double CycleClock::Frequency() {
>+  return 1e9;
>+}
>+
>+#endif
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..60e971583c5793c3286779def369420e7e32e1db
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/cycleclock.h
>@@ -0,0 +1,77 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// -----------------------------------------------------------------------------
>+// File: cycleclock.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines a `CycleClock`, which yields the value and frequency
>+// of a cycle counter that increments at a rate that is approximately constant.
>+//
>+// NOTE:
>+//
>+// The cycle counter frequency is not necessarily related to the core clock
>+// frequency and should not be treated as such. That is, `CycleClock` cycles are
>+// not necessarily "CPU cycles" and code should not rely on that behavior, even
>+// if experimentally observed.
>+//
>+//
>+// An arbitrary offset may have been added to the counter at power on.
>+//
>+// On some platforms, the rate and offset of the counter may differ
>+// slightly when read from different CPUs of a multiprocessor. Usually,
>+// we try to ensure that the operating system adjusts values periodically
>+// so that values agree approximately.   If you need stronger guarantees,
>+// consider using alternate interfaces.
>+//
>+// The CPU is not required to maintain the ordering of a cycle counter read
>+// with respect to surrounding instructions.
>+
>+#ifndef ABSL_BASE_INTERNAL_CYCLECLOCK_H_
>+#define ABSL_BASE_INTERNAL_CYCLECLOCK_H_
>+
>+#include <cstdint>
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// -----------------------------------------------------------------------------
>+// CycleClock
>+// -----------------------------------------------------------------------------
>+class CycleClock {
>+ public:
>+  // CycleClock::Now()
>+  //
>+  // Returns the value of a cycle counter that counts at a rate that is
>+  // approximately constant.
>+  static int64_t Now();
>+
>+  // CycleClock::Frequency()
>+  //
>+  // Returns the amount by which `CycleClock::Now()` increases per second. Note
>+  // that this value may not necessarily match the core CPU clock frequency.
>+  static double Frequency();
>+
>+ private:
>+  CycleClock() = delete;  // no instances
>+  CycleClock(const CycleClock&) = delete;
>+  CycleClock& operator=(const CycleClock&) = delete;
>+};
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_CYCLECLOCK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/direct_mmap.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/direct_mmap.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..0426e11890b680586012f05633263c09a13a1da2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/direct_mmap.h
>@@ -0,0 +1,153 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Functions for directly invoking mmap() via syscall, avoiding the case where
>+// mmap() has been locally overridden.
>+
>+#ifndef ABSL_BASE_INTERNAL_DIRECT_MMAP_H_
>+#define ABSL_BASE_INTERNAL_DIRECT_MMAP_H_
>+
>+#include "absl/base/config.h"
>+
>+#if ABSL_HAVE_MMAP
>+
>+#include <sys/mman.h>
>+
>+#ifdef __linux__
>+
>+#include <sys/types.h>
>+#ifdef __BIONIC__
>+#include <sys/syscall.h>
>+#else
>+#include <syscall.h>
>+#endif
>+
>+#include <linux/unistd.h>
>+#include <unistd.h>
>+#include <cerrno>
>+#include <cstdarg>
>+#include <cstdint>
>+
>+#ifdef __mips__
>+// Include definitions of the ABI currently in use.
>+#ifdef __BIONIC__
>+// Android doesn't have sgidefs.h, but does have asm/sgidefs.h, which has the
>+// definitions we need.
>+#include <asm/sgidefs.h>
>+#else
>+#include <sgidefs.h>
>+#endif  // __BIONIC__
>+#endif  // __mips__
>+
>+// SYS_mmap and SYS_munmap are not defined in Android.
>+#ifdef __BIONIC__
>+extern "C" void* __mmap2(void*, size_t, int, int, int, size_t);
>+#if defined(__NR_mmap) && !defined(SYS_mmap)
>+#define SYS_mmap __NR_mmap
>+#endif
>+#ifndef SYS_munmap
>+#define SYS_munmap __NR_munmap
>+#endif
>+#endif  // __BIONIC__
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// Platform specific logic extracted from
>+// https://chromium.googlesource.com/linux-syscall-support/+/master/linux_syscall_support.h
>+inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
>+                        off64_t offset) noexcept {
>+#if defined(__i386__) || defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \
>+    (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) ||                   \
>+    (defined(__PPC__) && !defined(__PPC64__)) ||                             \
>+    (defined(__s390__) && !defined(__s390x__))
>+  // On these architectures, implement mmap with mmap2.
>+  static int pagesize = 0;
>+  if (pagesize == 0) {
>+    pagesize = getpagesize();
>+  }
>+  if (offset < 0 || offset % pagesize != 0) {
>+    errno = EINVAL;
>+    return MAP_FAILED;
>+  }
>+#ifdef __BIONIC__
>+  // SYS_mmap2 has problems on Android API level <= 16.
>+  // Workaround by invoking __mmap2() instead.
>+  return __mmap2(start, length, prot, flags, fd, offset / pagesize);
>+#else
>+  return reinterpret_cast<void*>(
>+      syscall(SYS_mmap2, start, length, prot, flags, fd,
>+              static_cast<off_t>(offset / pagesize)));
>+#endif
>+#elif defined(__s390x__)
>+  // On s390x, mmap() arguments are passed in memory.
>+  unsigned long buf[6] = {reinterpret_cast<unsigned long>(start),  // NOLINT
>+                          static_cast<unsigned long>(length),      // NOLINT
>+                          static_cast<unsigned long>(prot),        // NOLINT
>+                          static_cast<unsigned long>(flags),       // NOLINT
>+                          static_cast<unsigned long>(fd),          // NOLINT
>+                          static_cast<unsigned long>(offset)};     // NOLINT
>+  return reinterpret_cast<void*>(syscall(SYS_mmap, buf));
>+#elif defined(__x86_64__)
>+// The x32 ABI has 32 bit longs, but the syscall interface is 64 bit.
>+// We need to explicitly cast to an unsigned 64 bit type to avoid implicit
>+// sign extension.  We can't cast pointers directly because those are
>+// 32 bits, and gcc will dump ugly warnings about casting from a pointer
>+// to an integer of a different size. We also need to make sure __off64_t
>+// isn't truncated to 32-bits under x32.
>+#define MMAP_SYSCALL_ARG(x) ((uint64_t)(uintptr_t)(x))
>+  return reinterpret_cast<void*>(
>+      syscall(SYS_mmap, MMAP_SYSCALL_ARG(start), MMAP_SYSCALL_ARG(length),
>+              MMAP_SYSCALL_ARG(prot), MMAP_SYSCALL_ARG(flags),
>+              MMAP_SYSCALL_ARG(fd), static_cast<uint64_t>(offset)));
>+#undef MMAP_SYSCALL_ARG
>+#else  // Remaining 64-bit aritectures.
>+  static_assert(sizeof(unsigned long) == 8, "Platform is not 64-bit");
>+  return reinterpret_cast<void*>(
>+      syscall(SYS_mmap, start, length, prot, flags, fd, offset));
>+#endif
>+}
>+
>+inline int DirectMunmap(void* start, size_t length) {
>+  return static_cast<int>(syscall(SYS_munmap, start, length));
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#else  // !__linux__
>+
>+// For non-linux platforms where we have mmap, just dispatch directly to the
>+// actual mmap()/munmap() methods.
>+
>+namespace absl {
>+namespace base_internal {
>+
>+inline void* DirectMmap(void* start, size_t length, int prot, int flags, int fd,
>+                        off_t offset) {
>+  return mmap(start, length, prot, flags, fd, offset);
>+}
>+
>+inline int DirectMunmap(void* start, size_t length) {
>+  return munmap(start, length);
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // __linux__
>+
>+#endif  // ABSL_HAVE_MMAP
>+
>+#endif  // ABSL_BASE_INTERNAL_DIRECT_MMAP_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..edc10f10a5aaa3548a3c451bc575e521f122756e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian.h
>@@ -0,0 +1,269 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_ENDIAN_H_
>+#define ABSL_BASE_INTERNAL_ENDIAN_H_
>+
>+// The following guarantees declaration of the byte swap functions
>+#ifdef _MSC_VER
>+#include <stdlib.h>  // NOLINT(build/include)
>+#elif defined(__APPLE__)
>+// Mac OS X / Darwin features
>+#include <libkern/OSByteOrder.h>
>+#elif defined(__FreeBSD__)
>+#include <sys/endian.h>
>+#elif defined(__GLIBC__)
>+#include <byteswap.h>  // IWYU pragma: export
>+#endif
>+
>+#include <cstdint>
>+#include "absl/base/config.h"
>+#include "absl/base/internal/unaligned_access.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+
>+// Use compiler byte-swapping intrinsics if they are available.  32-bit
>+// and 64-bit versions are available in Clang and GCC as of GCC 4.3.0.
>+// The 16-bit version is available in Clang and GCC only as of GCC 4.8.0.
>+// For simplicity, we enable them all only for GCC 4.8.0 or later.
>+#if defined(__clang__) || \
>+    (defined(__GNUC__) && \
>+     ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || __GNUC__ >= 5))
>+inline uint64_t gbswap_64(uint64_t host_int) {
>+  return __builtin_bswap64(host_int);
>+}
>+inline uint32_t gbswap_32(uint32_t host_int) {
>+  return __builtin_bswap32(host_int);
>+}
>+inline uint16_t gbswap_16(uint16_t host_int) {
>+  return __builtin_bswap16(host_int);
>+}
>+
>+#elif defined(_MSC_VER)
>+inline uint64_t gbswap_64(uint64_t host_int) {
>+  return _byteswap_uint64(host_int);
>+}
>+inline uint32_t gbswap_32(uint32_t host_int) {
>+  return _byteswap_ulong(host_int);
>+}
>+inline uint16_t gbswap_16(uint16_t host_int) {
>+  return _byteswap_ushort(host_int);
>+}
>+
>+#elif defined(__APPLE__)
>+inline uint64_t gbswap_64(uint64_t host_int) { return OSSwapInt16(host_int); }
>+inline uint32_t gbswap_32(uint32_t host_int) { return OSSwapInt32(host_int); }
>+inline uint16_t gbswap_16(uint16_t host_int) { return OSSwapInt64(host_int); }
>+
>+#else
>+inline uint64_t gbswap_64(uint64_t host_int) {
>+#if defined(__GNUC__) && defined(__x86_64__) && !defined(__APPLE__)
>+  // Adapted from /usr/include/byteswap.h.  Not available on Mac.
>+  if (__builtin_constant_p(host_int)) {
>+    return __bswap_constant_64(host_int);
>+  } else {
>+    register uint64_t result;
>+    __asm__("bswap %0" : "=r"(result) : "0"(host_int));
>+    return result;
>+  }
>+#elif defined(__GLIBC__)
>+  return bswap_64(host_int);
>+#else
>+  return (((x & uint64_t{(0xFF}) << 56) |
>+          ((x & uint64_t{(0xFF00}) << 40) |
>+          ((x & uint64_t{(0xFF0000}) << 24) |
>+          ((x & uint64_t{(0xFF000000}) << 8) |
>+          ((x & uint64_t{(0xFF00000000}) >> 8) |
>+          ((x & uint64_t{(0xFF0000000000}) >> 24) |
>+          ((x & uint64_t{(0xFF000000000000}) >> 40) |
>+          ((x & uint64_t{(0xFF00000000000000}) >> 56));
>+#endif  // bswap_64
>+}
>+
>+inline uint32_t gbswap_32(uint32_t host_int) {
>+#if defined(__GLIBC__)
>+  return bswap_32(host_int);
>+#else
>+  return (((x & 0xFF) << 24) | ((x & 0xFF00) << 8) | ((x & 0xFF0000) >> 8) |
>+          ((x & 0xFF000000) >> 24));
>+#endif
>+}
>+
>+inline uint16_t gbswap_16(uint16_t host_int) {
>+#if defined(__GLIBC__)
>+  return bswap_16(host_int);
>+#else
>+  return uint16_t{((x & 0xFF) << 8) | ((x & 0xFF00) >> 8)};
>+#endif
>+}
>+
>+#endif  // intrinics available
>+
>+#ifdef ABSL_IS_LITTLE_ENDIAN
>+
>+// Definitions for ntohl etc. that don't require us to include
>+// netinet/in.h. We wrap gbswap_32 and gbswap_16 in functions rather
>+// than just #defining them because in debug mode, gcc doesn't
>+// correctly handle the (rather involved) definitions of bswap_32.
>+// gcc guarantees that inline functions are as fast as macros, so
>+// this isn't a performance hit.
>+inline uint16_t ghtons(uint16_t x) { return gbswap_16(x); }
>+inline uint32_t ghtonl(uint32_t x) { return gbswap_32(x); }
>+inline uint64_t ghtonll(uint64_t x) { return gbswap_64(x); }
>+
>+#elif defined ABSL_IS_BIG_ENDIAN
>+
>+// These definitions are simpler on big-endian machines
>+// These are functions instead of macros to avoid self-assignment warnings
>+// on calls such as "i = ghtnol(i);".  This also provides type checking.
>+inline uint16_t ghtons(uint16_t x) { return x; }
>+inline uint32_t ghtonl(uint32_t x) { return x; }
>+inline uint64_t ghtonll(uint64_t x) { return x; }
>+
>+#else
>+#error \
>+    "Unsupported byte order: Either ABSL_IS_BIG_ENDIAN or " \
>+       "ABSL_IS_LITTLE_ENDIAN must be defined"
>+#endif  // byte order
>+
>+inline uint16_t gntohs(uint16_t x) { return ghtons(x); }
>+inline uint32_t gntohl(uint32_t x) { return ghtonl(x); }
>+inline uint64_t gntohll(uint64_t x) { return ghtonll(x); }
>+
>+// Utilities to convert numbers between the current hosts's native byte
>+// order and little-endian byte order
>+//
>+// Load/Store methods are alignment safe
>+namespace little_endian {
>+// Conversion functions.
>+#ifdef ABSL_IS_LITTLE_ENDIAN
>+
>+inline uint16_t FromHost16(uint16_t x) { return x; }
>+inline uint16_t ToHost16(uint16_t x) { return x; }
>+
>+inline uint32_t FromHost32(uint32_t x) { return x; }
>+inline uint32_t ToHost32(uint32_t x) { return x; }
>+
>+inline uint64_t FromHost64(uint64_t x) { return x; }
>+inline uint64_t ToHost64(uint64_t x) { return x; }
>+
>+inline constexpr bool IsLittleEndian() { return true; }
>+
>+#elif defined ABSL_IS_BIG_ENDIAN
>+
>+inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); }
>+inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); }
>+
>+inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); }
>+inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); }
>+
>+inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); }
>+inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); }
>+
>+inline constexpr bool IsLittleEndian() { return false; }
>+
>+#endif /* ENDIAN */
>+
>+// Functions to do unaligned loads and stores in little-endian order.
>+inline uint16_t Load16(const void *p) {
>+  return ToHost16(ABSL_INTERNAL_UNALIGNED_LOAD16(p));
>+}
>+
>+inline void Store16(void *p, uint16_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v));
>+}
>+
>+inline uint32_t Load32(const void *p) {
>+  return ToHost32(ABSL_INTERNAL_UNALIGNED_LOAD32(p));
>+}
>+
>+inline void Store32(void *p, uint32_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v));
>+}
>+
>+inline uint64_t Load64(const void *p) {
>+  return ToHost64(ABSL_INTERNAL_UNALIGNED_LOAD64(p));
>+}
>+
>+inline void Store64(void *p, uint64_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v));
>+}
>+
>+}  // namespace little_endian
>+
>+// Utilities to convert numbers between the current hosts's native byte
>+// order and big-endian byte order (same as network byte order)
>+//
>+// Load/Store methods are alignment safe
>+namespace big_endian {
>+#ifdef ABSL_IS_LITTLE_ENDIAN
>+
>+inline uint16_t FromHost16(uint16_t x) { return gbswap_16(x); }
>+inline uint16_t ToHost16(uint16_t x) { return gbswap_16(x); }
>+
>+inline uint32_t FromHost32(uint32_t x) { return gbswap_32(x); }
>+inline uint32_t ToHost32(uint32_t x) { return gbswap_32(x); }
>+
>+inline uint64_t FromHost64(uint64_t x) { return gbswap_64(x); }
>+inline uint64_t ToHost64(uint64_t x) { return gbswap_64(x); }
>+
>+inline constexpr bool IsLittleEndian() { return true; }
>+
>+#elif defined ABSL_IS_BIG_ENDIAN
>+
>+inline uint16_t FromHost16(uint16_t x) { return x; }
>+inline uint16_t ToHost16(uint16_t x) { return x; }
>+
>+inline uint32_t FromHost32(uint32_t x) { return x; }
>+inline uint32_t ToHost32(uint32_t x) { return x; }
>+
>+inline uint64_t FromHost64(uint64_t x) { return x; }
>+inline uint64_t ToHost64(uint64_t x) { return x; }
>+
>+inline constexpr bool IsLittleEndian() { return false; }
>+
>+#endif /* ENDIAN */
>+
>+// Functions to do unaligned loads and stores in big-endian order.
>+inline uint16_t Load16(const void *p) {
>+  return ToHost16(ABSL_INTERNAL_UNALIGNED_LOAD16(p));
>+}
>+
>+inline void Store16(void *p, uint16_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE16(p, FromHost16(v));
>+}
>+
>+inline uint32_t Load32(const void *p) {
>+  return ToHost32(ABSL_INTERNAL_UNALIGNED_LOAD32(p));
>+}
>+
>+inline void Store32(void *p, uint32_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE32(p, FromHost32(v));
>+}
>+
>+inline uint64_t Load64(const void *p) {
>+  return ToHost64(ABSL_INTERNAL_UNALIGNED_LOAD64(p));
>+}
>+
>+inline void Store64(void *p, uint64_t v) {
>+  ABSL_INTERNAL_UNALIGNED_STORE64(p, FromHost64(v));
>+}
>+
>+}  // namespace big_endian
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_ENDIAN_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e27691553bc628caf1ba916a39dc8a3a9f2a881f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/endian_test.cc
>@@ -0,0 +1,263 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/endian.h"
>+
>+#include <algorithm>
>+#include <cstdint>
>+#include <limits>
>+#include <random>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+
>+namespace absl {
>+namespace {
>+
>+const uint64_t kInitialNumber{0x0123456789abcdef};
>+const uint64_t k64Value{kInitialNumber};
>+const uint32_t k32Value{0x01234567};
>+const uint16_t k16Value{0x0123};
>+const int kNumValuesToTest = 1000000;
>+const int kRandomSeed = 12345;
>+
>+#if defined(ABSL_IS_BIG_ENDIAN)
>+const uint64_t kInitialInNetworkOrder{kInitialNumber};
>+const uint64_t k64ValueLE{0xefcdab8967452301};
>+const uint32_t k32ValueLE{0x67452301};
>+const uint16_t k16ValueLE{0x2301};
>+
>+const uint64_t k64ValueBE{kInitialNumber};
>+const uint32_t k32ValueBE{k32Value};
>+const uint16_t k16ValueBE{k16Value};
>+#elif defined(ABSL_IS_LITTLE_ENDIAN)
>+const uint64_t kInitialInNetworkOrder{0xefcdab8967452301};
>+const uint64_t k64ValueLE{kInitialNumber};
>+const uint32_t k32ValueLE{k32Value};
>+const uint16_t k16ValueLE{k16Value};
>+
>+const uint64_t k64ValueBE{0xefcdab8967452301};
>+const uint32_t k32ValueBE{0x67452301};
>+const uint16_t k16ValueBE{0x2301};
>+#endif
>+
>+template<typename T>
>+std::vector<T> GenerateAllValuesForType() {
>+  std::vector<T> result;
>+  T next = std::numeric_limits<T>::min();
>+  while (true) {
>+    result.push_back(next);
>+    if (next == std::numeric_limits<T>::max()) {
>+      return result;
>+    }
>+    ++next;
>+  }
>+}
>+
>+template<typename T>
>+std::vector<T> GenerateRandomIntegers(size_t numValuesToTest) {
>+  std::vector<T> result;
>+  std::mt19937_64 rng(kRandomSeed);
>+  for (size_t i = 0; i < numValuesToTest; ++i) {
>+    result.push_back(rng());
>+  }
>+  return result;
>+}
>+
>+void ManualByteSwap(char* bytes, int length) {
>+  if (length == 1)
>+    return;
>+
>+  EXPECT_EQ(0, length % 2);
>+  for (int i = 0; i < length / 2; ++i) {
>+    int j = (length - 1) - i;
>+    using std::swap;
>+    swap(bytes[i], bytes[j]);
>+  }
>+}
>+
>+template<typename T>
>+inline T UnalignedLoad(const char* p) {
>+  static_assert(
>+      sizeof(T) == 1 || sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8,
>+      "Unexpected type size");
>+
>+  switch (sizeof(T)) {
>+    case 1: return *reinterpret_cast<const T*>(p);
>+    case 2:
>+      return ABSL_INTERNAL_UNALIGNED_LOAD16(p);
>+    case 4:
>+      return ABSL_INTERNAL_UNALIGNED_LOAD32(p);
>+    case 8:
>+      return ABSL_INTERNAL_UNALIGNED_LOAD64(p);
>+    default:
>+      // Suppresses invalid "not all control paths return a value" on MSVC
>+      return {};
>+  }
>+}
>+
>+template <typename T, typename ByteSwapper>
>+static void GBSwapHelper(const std::vector<T>& host_values_to_test,
>+                         const ByteSwapper& byte_swapper) {
>+  // Test byte_swapper against a manual byte swap.
>+  for (typename std::vector<T>::const_iterator it = host_values_to_test.begin();
>+       it != host_values_to_test.end(); ++it) {
>+    T host_value = *it;
>+
>+    char actual_value[sizeof(host_value)];
>+    memcpy(actual_value, &host_value, sizeof(host_value));
>+    byte_swapper(actual_value);
>+
>+    char expected_value[sizeof(host_value)];
>+    memcpy(expected_value, &host_value, sizeof(host_value));
>+    ManualByteSwap(expected_value, sizeof(host_value));
>+
>+    ASSERT_EQ(0, memcmp(actual_value, expected_value, sizeof(host_value)))
>+        << "Swap output for 0x" << std::hex << host_value << " does not match. "
>+        << "Expected: 0x" << UnalignedLoad<T>(expected_value) << "; "
>+        << "actual: 0x" <<  UnalignedLoad<T>(actual_value);
>+  }
>+}
>+
>+void Swap16(char* bytes) {
>+  ABSL_INTERNAL_UNALIGNED_STORE16(
>+      bytes, gbswap_16(ABSL_INTERNAL_UNALIGNED_LOAD16(bytes)));
>+}
>+
>+void Swap32(char* bytes) {
>+  ABSL_INTERNAL_UNALIGNED_STORE32(
>+      bytes, gbswap_32(ABSL_INTERNAL_UNALIGNED_LOAD32(bytes)));
>+}
>+
>+void Swap64(char* bytes) {
>+  ABSL_INTERNAL_UNALIGNED_STORE64(
>+      bytes, gbswap_64(ABSL_INTERNAL_UNALIGNED_LOAD64(bytes)));
>+}
>+
>+TEST(EndianessTest, Uint16) {
>+  GBSwapHelper(GenerateAllValuesForType<uint16_t>(), &Swap16);
>+}
>+
>+TEST(EndianessTest, Uint32) {
>+  GBSwapHelper(GenerateRandomIntegers<uint32_t>(kNumValuesToTest), &Swap32);
>+}
>+
>+TEST(EndianessTest, Uint64) {
>+  GBSwapHelper(GenerateRandomIntegers<uint64_t>(kNumValuesToTest), &Swap64);
>+}
>+
>+TEST(EndianessTest, ghtonll_gntohll) {
>+  // Test that absl::ghtonl compiles correctly
>+  uint32_t test = 0x01234567;
>+  EXPECT_EQ(absl::gntohl(absl::ghtonl(test)), test);
>+
>+  uint64_t comp = absl::ghtonll(kInitialNumber);
>+  EXPECT_EQ(comp, kInitialInNetworkOrder);
>+  comp = absl::gntohll(kInitialInNetworkOrder);
>+  EXPECT_EQ(comp, kInitialNumber);
>+
>+  // Test that htonll and ntohll are each others' inverse functions on a
>+  // somewhat assorted batch of numbers. 37 is chosen to not be anything
>+  // particularly nice base 2.
>+  uint64_t value = 1;
>+  for (int i = 0; i < 100; ++i) {
>+    comp = absl::ghtonll(absl::gntohll(value));
>+    EXPECT_EQ(value, comp);
>+    comp = absl::gntohll(absl::ghtonll(value));
>+    EXPECT_EQ(value, comp);
>+    value *= 37;
>+  }
>+}
>+
>+TEST(EndianessTest, little_endian) {
>+  // Check little_endian uint16_t.
>+  uint64_t comp = little_endian::FromHost16(k16Value);
>+  EXPECT_EQ(comp, k16ValueLE);
>+  comp = little_endian::ToHost16(k16ValueLE);
>+  EXPECT_EQ(comp, k16Value);
>+
>+  // Check little_endian uint32_t.
>+  comp = little_endian::FromHost32(k32Value);
>+  EXPECT_EQ(comp, k32ValueLE);
>+  comp = little_endian::ToHost32(k32ValueLE);
>+  EXPECT_EQ(comp, k32Value);
>+
>+  // Check little_endian uint64_t.
>+  comp = little_endian::FromHost64(k64Value);
>+  EXPECT_EQ(comp, k64ValueLE);
>+  comp = little_endian::ToHost64(k64ValueLE);
>+  EXPECT_EQ(comp, k64Value);
>+
>+  // Check little-endian Load and store functions.
>+  uint16_t u16Buf;
>+  uint32_t u32Buf;
>+  uint64_t u64Buf;
>+
>+  little_endian::Store16(&u16Buf, k16Value);
>+  EXPECT_EQ(u16Buf, k16ValueLE);
>+  comp = little_endian::Load16(&u16Buf);
>+  EXPECT_EQ(comp, k16Value);
>+
>+  little_endian::Store32(&u32Buf, k32Value);
>+  EXPECT_EQ(u32Buf, k32ValueLE);
>+  comp = little_endian::Load32(&u32Buf);
>+  EXPECT_EQ(comp, k32Value);
>+
>+  little_endian::Store64(&u64Buf, k64Value);
>+  EXPECT_EQ(u64Buf, k64ValueLE);
>+  comp = little_endian::Load64(&u64Buf);
>+  EXPECT_EQ(comp, k64Value);
>+}
>+
>+TEST(EndianessTest, big_endian) {
>+  // Check big-endian Load and store functions.
>+  uint16_t u16Buf;
>+  uint32_t u32Buf;
>+  uint64_t u64Buf;
>+
>+  unsigned char buffer[10];
>+  big_endian::Store16(&u16Buf, k16Value);
>+  EXPECT_EQ(u16Buf, k16ValueBE);
>+  uint64_t comp = big_endian::Load16(&u16Buf);
>+  EXPECT_EQ(comp, k16Value);
>+
>+  big_endian::Store32(&u32Buf, k32Value);
>+  EXPECT_EQ(u32Buf, k32ValueBE);
>+  comp = big_endian::Load32(&u32Buf);
>+  EXPECT_EQ(comp, k32Value);
>+
>+  big_endian::Store64(&u64Buf, k64Value);
>+  EXPECT_EQ(u64Buf, k64ValueBE);
>+  comp = big_endian::Load64(&u64Buf);
>+  EXPECT_EQ(comp, k64Value);
>+
>+  big_endian::Store16(buffer + 1, k16Value);
>+  EXPECT_EQ(u16Buf, k16ValueBE);
>+  comp = big_endian::Load16(buffer + 1);
>+  EXPECT_EQ(comp, k16Value);
>+
>+  big_endian::Store32(buffer + 1, k32Value);
>+  EXPECT_EQ(u32Buf, k32ValueBE);
>+  comp = big_endian::Load32(buffer + 1);
>+  EXPECT_EQ(comp, k32Value);
>+
>+  big_endian::Store64(buffer + 1, k64Value);
>+  EXPECT_EQ(u64Buf, k64ValueBE);
>+  comp = big_endian::Load64(buffer + 1);
>+  EXPECT_EQ(comp, k64Value);
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f1d081f7e50dd66ae93bd3d8612ef21e1f521843
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.cc
>@@ -0,0 +1,71 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/meta/type_traits.h"
>+
>+namespace testing {
>+
>+exceptions_internal::NoThrowTag nothrow_ctor;
>+
>+exceptions_internal::StrongGuaranteeTagType strong_guarantee;
>+
>+namespace exceptions_internal {
>+
>+int countdown = -1;
>+
>+ConstructorTracker* ConstructorTracker::current_tracker_instance_ = nullptr;
>+
>+void MaybeThrow(absl::string_view msg, bool throw_bad_alloc) {
>+  if (countdown-- == 0) {
>+    if (throw_bad_alloc) throw TestBadAllocException(msg);
>+    throw TestException(msg);
>+  }
>+}
>+
>+testing::AssertionResult FailureMessage(const TestException& e,
>+                                        int countdown) noexcept {
>+  return testing::AssertionFailure() << "Exception thrown from " << e.what();
>+}
>+
>+std::string GetSpecString(TypeSpec spec) {
>+  std::string out;
>+  absl::string_view sep;
>+  const auto append = [&](absl::string_view s) {
>+    absl::StrAppend(&out, sep, s);
>+    sep = " | ";
>+  };
>+  if (static_cast<bool>(TypeSpec::kNoThrowCopy & spec)) {
>+    append("kNoThrowCopy");
>+  }
>+  if (static_cast<bool>(TypeSpec::kNoThrowMove & spec)) {
>+    append("kNoThrowMove");
>+  }
>+  if (static_cast<bool>(TypeSpec::kNoThrowNew & spec)) {
>+    append("kNoThrowNew");
>+  }
>+  return out;
>+}
>+
>+std::string GetSpecString(AllocSpec spec) {
>+  return static_cast<bool>(AllocSpec::kNoThrowAllocate & spec)
>+             ? "kNoThrowAllocate"
>+             : "";
>+}
>+
>+}  // namespace exceptions_internal
>+
>+}  // namespace testing
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c2f5093fc4da828afa82342be44995d18a3bbe7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_safety_testing.h
>@@ -0,0 +1,1109 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Utilities for testing exception-safety
>+
>+#ifndef ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_
>+#define ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_
>+
>+#include <cstddef>
>+#include <cstdint>
>+#include <functional>
>+#include <initializer_list>
>+#include <iosfwd>
>+#include <string>
>+#include <tuple>
>+#include <unordered_map>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/pretty_function.h"
>+#include "absl/memory/memory.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/strings/string_view.h"
>+#include "absl/strings/substitute.h"
>+#include "absl/types/optional.h"
>+
>+namespace testing {
>+
>+enum class TypeSpec;
>+enum class AllocSpec;
>+
>+constexpr TypeSpec operator|(TypeSpec a, TypeSpec b) {
>+  using T = absl::underlying_type_t<TypeSpec>;
>+  return static_cast<TypeSpec>(static_cast<T>(a) | static_cast<T>(b));
>+}
>+
>+constexpr TypeSpec operator&(TypeSpec a, TypeSpec b) {
>+  using T = absl::underlying_type_t<TypeSpec>;
>+  return static_cast<TypeSpec>(static_cast<T>(a) & static_cast<T>(b));
>+}
>+
>+constexpr AllocSpec operator|(AllocSpec a, AllocSpec b) {
>+  using T = absl::underlying_type_t<AllocSpec>;
>+  return static_cast<AllocSpec>(static_cast<T>(a) | static_cast<T>(b));
>+}
>+
>+constexpr AllocSpec operator&(AllocSpec a, AllocSpec b) {
>+  using T = absl::underlying_type_t<AllocSpec>;
>+  return static_cast<AllocSpec>(static_cast<T>(a) & static_cast<T>(b));
>+}
>+
>+namespace exceptions_internal {
>+
>+std::string GetSpecString(TypeSpec);
>+std::string GetSpecString(AllocSpec);
>+
>+struct NoThrowTag {};
>+struct StrongGuaranteeTagType {};
>+
>+// A simple exception class.  We throw this so that test code can catch
>+// exceptions specifically thrown by ThrowingValue.
>+class TestException {
>+ public:
>+  explicit TestException(absl::string_view msg) : msg_(msg) {}
>+  virtual ~TestException() {}
>+  virtual const char* what() const noexcept { return msg_.c_str(); }
>+
>+ private:
>+  std::string msg_;
>+};
>+
>+// TestBadAllocException exists because allocation functions must throw an
>+// exception which can be caught by a handler of std::bad_alloc.  We use a child
>+// class of std::bad_alloc so we can customise the error message, and also
>+// derive from TestException so we don't accidentally end up catching an actual
>+// bad_alloc exception in TestExceptionSafety.
>+class TestBadAllocException : public std::bad_alloc, public TestException {
>+ public:
>+  explicit TestBadAllocException(absl::string_view msg) : TestException(msg) {}
>+  using TestException::what;
>+};
>+
>+extern int countdown;
>+
>+// Allows the countdown variable to be set manually (defaulting to the initial
>+// value of 0)
>+inline void SetCountdown(int i = 0) { countdown = i; }
>+// Sets the countdown to the terminal value -1
>+inline void UnsetCountdown() { SetCountdown(-1); }
>+
>+void MaybeThrow(absl::string_view msg, bool throw_bad_alloc = false);
>+
>+testing::AssertionResult FailureMessage(const TestException& e,
>+                                        int countdown) noexcept;
>+
>+struct TrackedAddress {
>+  bool is_alive;
>+  std::string description;
>+};
>+
>+// Inspects the constructions and destructions of anything inheriting from
>+// TrackedObject. This allows us to safely "leak" TrackedObjects, as
>+// ConstructorTracker will destroy everything left over in its destructor.
>+class ConstructorTracker {
>+ public:
>+  explicit ConstructorTracker(int count) : countdown_(count) {
>+    assert(current_tracker_instance_ == nullptr);
>+    current_tracker_instance_ = this;
>+  }
>+
>+  ~ConstructorTracker() {
>+    assert(current_tracker_instance_ == this);
>+    current_tracker_instance_ = nullptr;
>+
>+    for (auto& it : address_map_) {
>+      void* address = it.first;
>+      TrackedAddress& tracked_address = it.second;
>+      if (tracked_address.is_alive) {
>+        ADD_FAILURE() << "Object at address " << address
>+                      << " with countdown of " << countdown_
>+                      << " was not destroyed [" << tracked_address.description
>+                      << "]";
>+      }
>+    }
>+  }
>+
>+  static void ObjectConstructed(void* address, std::string description) {
>+    if (!CurrentlyTracking()) return;
>+
>+    TrackedAddress& tracked_address =
>+        current_tracker_instance_->address_map_[address];
>+    if (tracked_address.is_alive) {
>+      ADD_FAILURE() << "Object at address " << address << " with countdown of "
>+                    << current_tracker_instance_->countdown_
>+                    << " was re-constructed. Previously: ["
>+                    << tracked_address.description << "] Now: [" << description
>+                    << "]";
>+    }
>+    tracked_address = {true, std::move(description)};
>+  }
>+
>+  static void ObjectDestructed(void* address) {
>+    if (!CurrentlyTracking()) return;
>+
>+    auto it = current_tracker_instance_->address_map_.find(address);
>+    // Not tracked. Ignore.
>+    if (it == current_tracker_instance_->address_map_.end()) return;
>+
>+    TrackedAddress& tracked_address = it->second;
>+    if (!tracked_address.is_alive) {
>+      ADD_FAILURE() << "Object at address " << address << " with countdown of "
>+                    << current_tracker_instance_->countdown_
>+                    << " was re-destroyed or created prior to construction "
>+                    << "tracking [" << tracked_address.description << "]";
>+    }
>+    tracked_address.is_alive = false;
>+  }
>+
>+ private:
>+  static bool CurrentlyTracking() {
>+    return current_tracker_instance_ != nullptr;
>+  }
>+
>+  std::unordered_map<void*, TrackedAddress> address_map_;
>+  int countdown_;
>+
>+  static ConstructorTracker* current_tracker_instance_;
>+};
>+
>+class TrackedObject {
>+ public:
>+  TrackedObject(const TrackedObject&) = delete;
>+  TrackedObject(TrackedObject&&) = delete;
>+
>+ protected:
>+  explicit TrackedObject(std::string description) {
>+    ConstructorTracker::ObjectConstructed(this, std::move(description));
>+  }
>+
>+  ~TrackedObject() noexcept { ConstructorTracker::ObjectDestructed(this); }
>+};
>+
>+template <typename Factory, typename Operation, typename Invariant>
>+absl::optional<testing::AssertionResult> TestSingleInvariantAtCountdownImpl(
>+    const Factory& factory, const Operation& operation, int count,
>+    const Invariant& invariant) {
>+  auto t_ptr = factory();
>+  absl::optional<testing::AssertionResult> current_res;
>+  SetCountdown(count);
>+  try {
>+    operation(t_ptr.get());
>+  } catch (const exceptions_internal::TestException& e) {
>+    current_res.emplace(invariant(t_ptr.get()));
>+    if (!current_res.value()) {
>+      *current_res << e.what() << " failed invariant check";
>+    }
>+  }
>+  UnsetCountdown();
>+  return current_res;
>+}
>+
>+template <typename Factory, typename Operation>
>+absl::optional<testing::AssertionResult> TestSingleInvariantAtCountdownImpl(
>+    const Factory& factory, const Operation& operation, int count,
>+    StrongGuaranteeTagType) {
>+  using TPtr = typename decltype(factory())::pointer;
>+  auto t_is_strong = [&](TPtr t) { return *t == *factory(); };
>+  return TestSingleInvariantAtCountdownImpl(factory, operation, count,
>+                                            t_is_strong);
>+}
>+
>+template <typename Factory, typename Operation, typename Invariant>
>+int TestSingleInvariantAtCountdown(
>+    const Factory& factory, const Operation& operation, int count,
>+    const Invariant& invariant,
>+    absl::optional<testing::AssertionResult>* reduced_res) {
>+  // If reduced_res is empty, it means the current call to
>+  // TestSingleInvariantAtCountdown(...) is the first test being run so we do
>+  // want to run it. Alternatively, if it's not empty (meaning a previous test
>+  // has run) we want to check if it passed. If the previous test did pass, we
>+  // want to contine running tests so we do want to run the current one. If it
>+  // failed, we want to short circuit so as not to overwrite the AssertionResult
>+  // output. If that's the case, we do not run the current test and instead we
>+  // simply return.
>+  if (!reduced_res->has_value() || reduced_res->value()) {
>+    *reduced_res = TestSingleInvariantAtCountdownImpl(factory, operation, count,
>+                                                      invariant);
>+  }
>+  return 0;
>+}
>+
>+template <typename Factory, typename Operation, typename... Invariants>
>+inline absl::optional<testing::AssertionResult> TestAllInvariantsAtCountdown(
>+    const Factory& factory, const Operation& operation, int count,
>+    const Invariants&... invariants) {
>+  absl::optional<testing::AssertionResult> reduced_res;
>+
>+  // Run each checker, short circuiting after the first failure
>+  int dummy[] = {
>+      0, (TestSingleInvariantAtCountdown(factory, operation, count, invariants,
>+                                         &reduced_res))...};
>+  static_cast<void>(dummy);
>+  return reduced_res;
>+}
>+
>+}  // namespace exceptions_internal
>+
>+extern exceptions_internal::NoThrowTag nothrow_ctor;
>+
>+extern exceptions_internal::StrongGuaranteeTagType strong_guarantee;
>+
>+// A test class which is convertible to bool.  The conversion can be
>+// instrumented to throw at a controlled time.
>+class ThrowingBool {
>+ public:
>+  ThrowingBool(bool b) noexcept : b_(b) {}  // NOLINT(runtime/explicit)
>+  operator bool() const {                   // NOLINT
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return b_;
>+  }
>+
>+ private:
>+  bool b_;
>+};
>+
>+/*
>+ * Configuration enum for the ThrowingValue type that defines behavior for the
>+ * lifetime of the instance. Use testing::nothrow_ctor to prevent the integer
>+ * constructor from throwing.
>+ *
>+ * kEverythingThrows: Every operation can throw an exception
>+ * kNoThrowCopy: Copy construction and copy assignment will not throw
>+ * kNoThrowMove: Move construction and move assignment will not throw
>+ * kNoThrowNew: Overloaded operators new and new[] will not throw
>+ */
>+enum class TypeSpec {
>+  kEverythingThrows = 0,
>+  kNoThrowCopy = 1,
>+  kNoThrowMove = 1 << 1,
>+  kNoThrowNew = 1 << 2,
>+};
>+
>+/*
>+ * A testing class instrumented to throw an exception at a controlled time.
>+ *
>+ * ThrowingValue implements a slightly relaxed version of the Regular concept --
>+ * that is it's a value type with the expected semantics.  It also implements
>+ * arithmetic operations.  It doesn't implement member and pointer operators
>+ * like operator-> or operator[].
>+ *
>+ * ThrowingValue can be instrumented to have certain operations be noexcept by
>+ * using compile-time bitfield template arguments.  That is, to make an
>+ * ThrowingValue which has noexcept move construction/assignment and noexcept
>+ * copy construction/assignment, use the following:
>+ *   ThrowingValue<testing::kNoThrowMove | testing::kNoThrowCopy> my_thrwr{val};
>+ */
>+template <TypeSpec Spec = TypeSpec::kEverythingThrows>
>+class ThrowingValue : private exceptions_internal::TrackedObject {
>+  static constexpr bool IsSpecified(TypeSpec spec) {
>+    return static_cast<bool>(Spec & spec);
>+  }
>+
>+  static constexpr int kDefaultValue = 0;
>+  static constexpr int kBadValue = 938550620;
>+
>+ public:
>+  ThrowingValue() : TrackedObject(GetInstanceString(kDefaultValue)) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ = kDefaultValue;
>+  }
>+
>+  ThrowingValue(const ThrowingValue& other) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowCopy))
>+      : TrackedObject(GetInstanceString(other.dummy_)) {
>+    if (!IsSpecified(TypeSpec::kNoThrowCopy)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    }
>+    dummy_ = other.dummy_;
>+  }
>+
>+  ThrowingValue(ThrowingValue&& other) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowMove))
>+      : TrackedObject(GetInstanceString(other.dummy_)) {
>+    if (!IsSpecified(TypeSpec::kNoThrowMove)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    }
>+    dummy_ = other.dummy_;
>+  }
>+
>+  explicit ThrowingValue(int i) : TrackedObject(GetInstanceString(i)) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ = i;
>+  }
>+
>+  ThrowingValue(int i, exceptions_internal::NoThrowTag) noexcept
>+      : TrackedObject(GetInstanceString(i)), dummy_(i) {}
>+
>+  // absl expects nothrow destructors
>+  ~ThrowingValue() noexcept = default;
>+
>+  ThrowingValue& operator=(const ThrowingValue& other) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowCopy)) {
>+    dummy_ = kBadValue;
>+    if (!IsSpecified(TypeSpec::kNoThrowCopy)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    }
>+    dummy_ = other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator=(ThrowingValue&& other) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowMove)) {
>+    dummy_ = kBadValue;
>+    if (!IsSpecified(TypeSpec::kNoThrowMove)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    }
>+    dummy_ = other.dummy_;
>+    return *this;
>+  }
>+
>+  // Arithmetic Operators
>+  ThrowingValue operator+(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ + other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator+() const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator-(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ - other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator-() const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(-dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue& operator++() {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    ++dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue operator++(int) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    auto out = ThrowingValue(dummy_, nothrow_ctor);
>+    ++dummy_;
>+    return out;
>+  }
>+
>+  ThrowingValue& operator--() {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    --dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue operator--(int) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    auto out = ThrowingValue(dummy_, nothrow_ctor);
>+    --dummy_;
>+    return out;
>+  }
>+
>+  ThrowingValue operator*(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ * other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator/(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ / other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator%(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ % other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator<<(int shift) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ << shift, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator>>(int shift) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ >> shift, nothrow_ctor);
>+  }
>+
>+  // Comparison Operators
>+  // NOTE: We use `ThrowingBool` instead of `bool` because most STL
>+  // types/containers requires T to be convertible to bool.
>+  friend ThrowingBool operator==(const ThrowingValue& a,
>+                                 const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ == b.dummy_;
>+  }
>+  friend ThrowingBool operator!=(const ThrowingValue& a,
>+                                 const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ != b.dummy_;
>+  }
>+  friend ThrowingBool operator<(const ThrowingValue& a,
>+                                const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ < b.dummy_;
>+  }
>+  friend ThrowingBool operator<=(const ThrowingValue& a,
>+                                 const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ <= b.dummy_;
>+  }
>+  friend ThrowingBool operator>(const ThrowingValue& a,
>+                                const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ > b.dummy_;
>+  }
>+  friend ThrowingBool operator>=(const ThrowingValue& a,
>+                                 const ThrowingValue& b) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return a.dummy_ >= b.dummy_;
>+  }
>+
>+  // Logical Operators
>+  ThrowingBool operator!() const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return !dummy_;
>+  }
>+
>+  ThrowingBool operator&&(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return dummy_ && other.dummy_;
>+  }
>+
>+  ThrowingBool operator||(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return dummy_ || other.dummy_;
>+  }
>+
>+  // Bitwise Logical Operators
>+  ThrowingValue operator~() const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(~dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator&(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ & other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator|(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ | other.dummy_, nothrow_ctor);
>+  }
>+
>+  ThrowingValue operator^(const ThrowingValue& other) const {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return ThrowingValue(dummy_ ^ other.dummy_, nothrow_ctor);
>+  }
>+
>+  // Compound Assignment operators
>+  ThrowingValue& operator+=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ += other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator-=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ -= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator*=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ *= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator/=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ /= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator%=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ %= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator&=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ &= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator|=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ |= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator^=(const ThrowingValue& other) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ ^= other.dummy_;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator<<=(int shift) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ <<= shift;
>+    return *this;
>+  }
>+
>+  ThrowingValue& operator>>=(int shift) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ >>= shift;
>+    return *this;
>+  }
>+
>+  // Pointer operators
>+  void operator&() const = delete;  // NOLINT(runtime/operator)
>+
>+  // Stream operators
>+  friend std::ostream& operator<<(std::ostream& os, const ThrowingValue& tv) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return os << GetInstanceString(tv.dummy_);
>+  }
>+
>+  friend std::istream& operator>>(std::istream& is, const ThrowingValue&) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return is;
>+  }
>+
>+  // Memory management operators
>+  // Args.. allows us to overload regular and placement new in one shot
>+  template <typename... Args>
>+  static void* operator new(size_t s, Args&&... args) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowNew)) {
>+    if (!IsSpecified(TypeSpec::kNoThrowNew)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true);
>+    }
>+    return ::operator new(s, std::forward<Args>(args)...);
>+  }
>+
>+  template <typename... Args>
>+  static void* operator new[](size_t s, Args&&... args) noexcept(
>+      IsSpecified(TypeSpec::kNoThrowNew)) {
>+    if (!IsSpecified(TypeSpec::kNoThrowNew)) {
>+      exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION, true);
>+    }
>+    return ::operator new[](s, std::forward<Args>(args)...);
>+  }
>+
>+  // Abseil doesn't support throwing overloaded operator delete.  These are
>+  // provided so a throwing operator-new can clean up after itself.
>+  //
>+  // We provide both regular and templated operator delete because if only the
>+  // templated version is provided as we did with operator new, the compiler has
>+  // no way of knowing which overload of operator delete to call. See
>+  // http://en.cppreference.com/w/cpp/memory/new/operator_delete and
>+  // http://en.cppreference.com/w/cpp/language/delete for the gory details.
>+  void operator delete(void* p) noexcept { ::operator delete(p); }
>+
>+  template <typename... Args>
>+  void operator delete(void* p, Args&&... args) noexcept {
>+    ::operator delete(p, std::forward<Args>(args)...);
>+  }
>+
>+  void operator delete[](void* p) noexcept { return ::operator delete[](p); }
>+
>+  template <typename... Args>
>+  void operator delete[](void* p, Args&&... args) noexcept {
>+    return ::operator delete[](p, std::forward<Args>(args)...);
>+  }
>+
>+  // Non-standard access to the actual contained value.  No need for this to
>+  // throw.
>+  int& Get() noexcept { return dummy_; }
>+  const int& Get() const noexcept { return dummy_; }
>+
>+ private:
>+  static std::string GetInstanceString(int dummy) {
>+    return absl::StrCat("ThrowingValue<",
>+                        exceptions_internal::GetSpecString(Spec), ">(", dummy,
>+                        ")");
>+  }
>+
>+  int dummy_;
>+};
>+// While not having to do with exceptions, explicitly delete comma operator, to
>+// make sure we don't use it on user-supplied types.
>+template <TypeSpec Spec, typename T>
>+void operator,(const ThrowingValue<Spec>&, T&&) = delete;
>+template <TypeSpec Spec, typename T>
>+void operator,(T&&, const ThrowingValue<Spec>&) = delete;
>+
>+/*
>+ * Configuration enum for the ThrowingAllocator type that defines behavior for
>+ * the lifetime of the instance.
>+ *
>+ * kEverythingThrows: Calls to the member functions may throw
>+ * kNoThrowAllocate: Calls to the member functions will not throw
>+ */
>+enum class AllocSpec {
>+  kEverythingThrows = 0,
>+  kNoThrowAllocate = 1,
>+};
>+
>+/*
>+ * An allocator type which is instrumented to throw at a controlled time, or not
>+ * to throw, using AllocSpec. The supported settings are the default of every
>+ * function which is allowed to throw in a conforming allocator possibly
>+ * throwing, or nothing throws, in line with the ABSL_ALLOCATOR_THROWS
>+ * configuration macro.
>+ */
>+template <typename T, AllocSpec Spec = AllocSpec::kEverythingThrows>
>+class ThrowingAllocator : private exceptions_internal::TrackedObject {
>+  static constexpr bool IsSpecified(AllocSpec spec) {
>+    return static_cast<bool>(Spec & spec);
>+  }
>+
>+ public:
>+  using pointer = T*;
>+  using const_pointer = const T*;
>+  using reference = T&;
>+  using const_reference = const T&;
>+  using void_pointer = void*;
>+  using const_void_pointer = const void*;
>+  using value_type = T;
>+  using size_type = size_t;
>+  using difference_type = ptrdiff_t;
>+
>+  using is_nothrow =
>+      std::integral_constant<bool, Spec == AllocSpec::kNoThrowAllocate>;
>+  using propagate_on_container_copy_assignment = std::true_type;
>+  using propagate_on_container_move_assignment = std::true_type;
>+  using propagate_on_container_swap = std::true_type;
>+  using is_always_equal = std::false_type;
>+
>+  ThrowingAllocator() : TrackedObject(GetInstanceString(next_id_)) {
>+    exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
>+    dummy_ = std::make_shared<const int>(next_id_++);
>+  }
>+
>+  template <typename U>
>+  ThrowingAllocator(const ThrowingAllocator<U, Spec>& other) noexcept  // NOLINT
>+      : TrackedObject(GetInstanceString(*other.State())),
>+        dummy_(other.State()) {}
>+
>+  // According to C++11 standard [17.6.3.5], Table 28, the move/copy ctors of
>+  // allocator shall not exit via an exception, thus they are marked noexcept.
>+  ThrowingAllocator(const ThrowingAllocator& other) noexcept
>+      : TrackedObject(GetInstanceString(*other.State())),
>+        dummy_(other.State()) {}
>+
>+  template <typename U>
>+  ThrowingAllocator(ThrowingAllocator<U, Spec>&& other) noexcept  // NOLINT
>+      : TrackedObject(GetInstanceString(*other.State())),
>+        dummy_(std::move(other.State())) {}
>+
>+  ThrowingAllocator(ThrowingAllocator&& other) noexcept
>+      : TrackedObject(GetInstanceString(*other.State())),
>+        dummy_(std::move(other.State())) {}
>+
>+  ~ThrowingAllocator() noexcept = default;
>+
>+  ThrowingAllocator& operator=(const ThrowingAllocator& other) noexcept {
>+    dummy_ = other.State();
>+    return *this;
>+  }
>+
>+  template <typename U>
>+  ThrowingAllocator& operator=(
>+      const ThrowingAllocator<U, Spec>& other) noexcept {
>+    dummy_ = other.State();
>+    return *this;
>+  }
>+
>+  template <typename U>
>+  ThrowingAllocator& operator=(ThrowingAllocator<U, Spec>&& other) noexcept {
>+    dummy_ = std::move(other.State());
>+    return *this;
>+  }
>+
>+  template <typename U>
>+  struct rebind {
>+    using other = ThrowingAllocator<U, Spec>;
>+  };
>+
>+  pointer allocate(size_type n) noexcept(
>+      IsSpecified(AllocSpec::kNoThrowAllocate)) {
>+    ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return static_cast<pointer>(::operator new(n * sizeof(T)));
>+  }
>+
>+  pointer allocate(size_type n, const_void_pointer) noexcept(
>+      IsSpecified(AllocSpec::kNoThrowAllocate)) {
>+    return allocate(n);
>+  }
>+
>+  void deallocate(pointer ptr, size_type) noexcept {
>+    ReadState();
>+    ::operator delete(static_cast<void*>(ptr));
>+  }
>+
>+  template <typename U, typename... Args>
>+  void construct(U* ptr, Args&&... args) noexcept(
>+      IsSpecified(AllocSpec::kNoThrowAllocate)) {
>+    ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION);
>+    ::new (static_cast<void*>(ptr)) U(std::forward<Args>(args)...);
>+  }
>+
>+  template <typename U>
>+  void destroy(U* p) noexcept {
>+    ReadState();
>+    p->~U();
>+  }
>+
>+  size_type max_size() const noexcept {
>+    return std::numeric_limits<difference_type>::max() / sizeof(value_type);
>+  }
>+
>+  ThrowingAllocator select_on_container_copy_construction() noexcept(
>+      IsSpecified(AllocSpec::kNoThrowAllocate)) {
>+    auto& out = *this;
>+    ReadStateAndMaybeThrow(ABSL_PRETTY_FUNCTION);
>+    return out;
>+  }
>+
>+  template <typename U>
>+  bool operator==(const ThrowingAllocator<U, Spec>& other) const noexcept {
>+    return dummy_ == other.dummy_;
>+  }
>+
>+  template <typename U>
>+  bool operator!=(const ThrowingAllocator<U, Spec>& other) const noexcept {
>+    return dummy_ != other.dummy_;
>+  }
>+
>+  template <typename, AllocSpec>
>+  friend class ThrowingAllocator;
>+
>+ private:
>+  static std::string GetInstanceString(int dummy) {
>+    return absl::StrCat("ThrowingAllocator<",
>+                        exceptions_internal::GetSpecString(Spec), ">(", dummy,
>+                        ")");
>+  }
>+
>+  const std::shared_ptr<const int>& State() const { return dummy_; }
>+  std::shared_ptr<const int>& State() { return dummy_; }
>+
>+  void ReadState() {
>+    // we know that this will never be true, but the compiler doesn't, so this
>+    // should safely force a read of the value.
>+    if (*dummy_ < 0) std::abort();
>+  }
>+
>+  void ReadStateAndMaybeThrow(absl::string_view msg) const {
>+    if (!IsSpecified(AllocSpec::kNoThrowAllocate)) {
>+      exceptions_internal::MaybeThrow(
>+          absl::Substitute("Allocator id $0 threw from $1", *dummy_, msg));
>+    }
>+  }
>+
>+  static int next_id_;
>+  std::shared_ptr<const int> dummy_;
>+};
>+
>+template <typename T, AllocSpec Spec>
>+int ThrowingAllocator<T, Spec>::next_id_ = 0;
>+
>+// Tests for resource leaks by attempting to construct a T using args repeatedly
>+// until successful, using the countdown method.  Side effects can then be
>+// tested for resource leaks.
>+template <typename T, typename... Args>
>+void TestThrowingCtor(Args&&... args) {
>+  struct Cleanup {
>+    ~Cleanup() { exceptions_internal::UnsetCountdown(); }
>+  } c;
>+  for (int count = 0;; ++count) {
>+    exceptions_internal::ConstructorTracker ct(count);
>+    exceptions_internal::SetCountdown(count);
>+    try {
>+      T temp(std::forward<Args>(args)...);
>+      static_cast<void>(temp);
>+      break;
>+    } catch (const exceptions_internal::TestException&) {
>+    }
>+  }
>+}
>+
>+// Tests the nothrow guarantee of the provided nullary operation. If the an
>+// exception is thrown, the result will be AssertionFailure(). Otherwise, it
>+// will be AssertionSuccess().
>+template <typename Operation>
>+testing::AssertionResult TestNothrowOp(const Operation& operation) {
>+  struct Cleanup {
>+    Cleanup() { exceptions_internal::SetCountdown(); }
>+    ~Cleanup() { exceptions_internal::UnsetCountdown(); }
>+  } c;
>+  try {
>+    operation();
>+    return testing::AssertionSuccess();
>+  } catch (exceptions_internal::TestException) {
>+    return testing::AssertionFailure()
>+           << "TestException thrown during call to operation() when nothrow "
>+              "guarantee was expected.";
>+  } catch (...) {
>+    return testing::AssertionFailure()
>+           << "Unknown exception thrown during call to operation() when "
>+              "nothrow guarantee was expected.";
>+  }
>+}
>+
>+namespace exceptions_internal {
>+
>+// Dummy struct for ExceptionSafetyTester<> partial state.
>+struct UninitializedT {};
>+
>+template <typename T>
>+class DefaultFactory {
>+ public:
>+  explicit DefaultFactory(const T& t) : t_(t) {}
>+  std::unique_ptr<T> operator()() const { return absl::make_unique<T>(t_); }
>+
>+ private:
>+  T t_;
>+};
>+
>+template <size_t LazyInvariantsCount, typename LazyFactory,
>+          typename LazyOperation>
>+using EnableIfTestable = typename absl::enable_if_t<
>+    LazyInvariantsCount != 0 &&
>+    !std::is_same<LazyFactory, UninitializedT>::value &&
>+    !std::is_same<LazyOperation, UninitializedT>::value>;
>+
>+template <typename Factory = UninitializedT,
>+          typename Operation = UninitializedT, typename... Invariants>
>+class ExceptionSafetyTester;
>+
>+}  // namespace exceptions_internal
>+
>+exceptions_internal::ExceptionSafetyTester<> MakeExceptionSafetyTester();
>+
>+namespace exceptions_internal {
>+
>+/*
>+ * Builds a tester object that tests if performing a operation on a T follows
>+ * exception safety guarantees. Verification is done via invariant assertion
>+ * callbacks applied to T instances post-throw.
>+ *
>+ * Template parameters for ExceptionSafetyTester:
>+ *
>+ * - Factory: The factory object (passed in via tester.WithFactory(...) or
>+ *   tester.WithInitialValue(...)) must be invocable with the signature
>+ *   `std::unique_ptr<T> operator()() const` where T is the type being tested.
>+ *   It is used for reliably creating identical T instances to test on.
>+ *
>+ * - Operation: The operation object (passsed in via tester.WithOperation(...)
>+ *   or tester.Test(...)) must be invocable with the signature
>+ *   `void operator()(T*) const` where T is the type being tested. It is used
>+ *   for performing steps on a T instance that may throw and that need to be
>+ *   checked for exception safety. Each call to the operation will receive a
>+ *   fresh T instance so it's free to modify and destroy the T instances as it
>+ *   pleases.
>+ *
>+ * - Invariants...: The invariant assertion callback objects (passed in via
>+ *   tester.WithInvariants(...)) must be invocable with the signature
>+ *   `testing::AssertionResult operator()(T*) const` where T is the type being
>+ *   tested. Invariant assertion callbacks are provided T instances post-throw.
>+ *   They must return testing::AssertionSuccess when the type invariants of the
>+ *   provided T instance hold. If the type invariants of the T instance do not
>+ *   hold, they must return testing::AssertionFailure. Execution order of
>+ *   Invariants... is unspecified. They will each individually get a fresh T
>+ *   instance so they are free to modify and destroy the T instances as they
>+ *   please.
>+ */
>+template <typename Factory, typename Operation, typename... Invariants>
>+class ExceptionSafetyTester {
>+ public:
>+  /*
>+   * Returns a new ExceptionSafetyTester with an included T factory based on the
>+   * provided T instance. The existing factory will not be included in the newly
>+   * created tester instance. The created factory returns a new T instance by
>+   * copy-constructing the provided const T& t.
>+   *
>+   * Preconditions for tester.WithInitialValue(const T& t):
>+   *
>+   * - The const T& t object must be copy-constructible where T is the type
>+   *   being tested. For non-copy-constructible objects, use the method
>+   *   tester.WithFactory(...).
>+   */
>+  template <typename T>
>+  ExceptionSafetyTester<DefaultFactory<T>, Operation, Invariants...>
>+  WithInitialValue(const T& t) const {
>+    return WithFactory(DefaultFactory<T>(t));
>+  }
>+
>+  /*
>+   * Returns a new ExceptionSafetyTester with the provided T factory included.
>+   * The existing factory will not be included in the newly-created tester
>+   * instance. This method is intended for use with types lacking a copy
>+   * constructor. Types that can be copy-constructed should instead use the
>+   * method tester.WithInitialValue(...).
>+   */
>+  template <typename NewFactory>
>+  ExceptionSafetyTester<absl::decay_t<NewFactory>, Operation, Invariants...>
>+  WithFactory(const NewFactory& new_factory) const {
>+    return {new_factory, operation_, invariants_};
>+  }
>+
>+  /*
>+   * Returns a new ExceptionSafetyTester with the provided testable operation
>+   * included. The existing operation will not be included in the newly created
>+   * tester.
>+   */
>+  template <typename NewOperation>
>+  ExceptionSafetyTester<Factory, absl::decay_t<NewOperation>, Invariants...>
>+  WithOperation(const NewOperation& new_operation) const {
>+    return {factory_, new_operation, invariants_};
>+  }
>+
>+  /*
>+   * Returns a new ExceptionSafetyTester with the provided MoreInvariants...
>+   * combined with the Invariants... that were already included in the instance
>+   * on which the method was called. Invariants... cannot be removed or replaced
>+   * once added to an ExceptionSafetyTester instance. A fresh object must be
>+   * created in order to get an empty Invariants... list.
>+   *
>+   * In addition to passing in custom invariant assertion callbacks, this method
>+   * accepts `testing::strong_guarantee` as an argument which checks T instances
>+   * post-throw against freshly created T instances via operator== to verify
>+   * that any state changes made during the execution of the operation were
>+   * properly rolled back.
>+   */
>+  template <typename... MoreInvariants>
>+  ExceptionSafetyTester<Factory, Operation, Invariants...,
>+                        absl::decay_t<MoreInvariants>...>
>+  WithInvariants(const MoreInvariants&... more_invariants) const {
>+    return {factory_, operation_,
>+            std::tuple_cat(invariants_,
>+                           std::tuple<absl::decay_t<MoreInvariants>...>(
>+                               more_invariants...))};
>+  }
>+
>+  /*
>+   * Returns a testing::AssertionResult that is the reduced result of the
>+   * exception safety algorithm. The algorithm short circuits and returns
>+   * AssertionFailure after the first invariant callback returns an
>+   * AssertionFailure. Otherwise, if all invariant callbacks return an
>+   * AssertionSuccess, the reduced result is AssertionSuccess.
>+   *
>+   * The passed-in testable operation will not be saved in a new tester instance
>+   * nor will it modify/replace the existing tester instance. This is useful
>+   * when each operation being tested is unique and does not need to be reused.
>+   *
>+   * Preconditions for tester.Test(const NewOperation& new_operation):
>+   *
>+   * - May only be called after at least one invariant assertion callback and a
>+   *   factory or initial value have been provided.
>+   */
>+  template <
>+      typename NewOperation,
>+      typename = EnableIfTestable<sizeof...(Invariants), Factory, NewOperation>>
>+  testing::AssertionResult Test(const NewOperation& new_operation) const {
>+    return TestImpl(new_operation, absl::index_sequence_for<Invariants...>());
>+  }
>+
>+  /*
>+   * Returns a testing::AssertionResult that is the reduced result of the
>+   * exception safety algorithm. The algorithm short circuits and returns
>+   * AssertionFailure after the first invariant callback returns an
>+   * AssertionFailure. Otherwise, if all invariant callbacks return an
>+   * AssertionSuccess, the reduced result is AssertionSuccess.
>+   *
>+   * Preconditions for tester.Test():
>+   *
>+   * - May only be called after at least one invariant assertion callback, a
>+   *   factory or initial value and a testable operation have been provided.
>+   */
>+  template <typename LazyOperation = Operation,
>+            typename =
>+                EnableIfTestable<sizeof...(Invariants), Factory, LazyOperation>>
>+  testing::AssertionResult Test() const {
>+    return TestImpl(operation_, absl::index_sequence_for<Invariants...>());
>+  }
>+
>+ private:
>+  template <typename, typename, typename...>
>+  friend class ExceptionSafetyTester;
>+
>+  friend ExceptionSafetyTester<> testing::MakeExceptionSafetyTester();
>+
>+  ExceptionSafetyTester() {}
>+
>+  ExceptionSafetyTester(const Factory& f, const Operation& o,
>+                        const std::tuple<Invariants...>& i)
>+      : factory_(f), operation_(o), invariants_(i) {}
>+
>+  template <typename SelectedOperation, size_t... Indices>
>+  testing::AssertionResult TestImpl(const SelectedOperation& selected_operation,
>+                                    absl::index_sequence<Indices...>) const {
>+    // Starting from 0 and counting upwards until one of the exit conditions is
>+    // hit...
>+    for (int count = 0;; ++count) {
>+      exceptions_internal::ConstructorTracker ct(count);
>+
>+      // Run the full exception safety test algorithm for the current countdown
>+      auto reduced_res =
>+          TestAllInvariantsAtCountdown(factory_, selected_operation, count,
>+                                       std::get<Indices>(invariants_)...);
>+      // If there is no value in the optional, no invariants were run because no
>+      // exception was thrown. This means that the test is complete and the loop
>+      // can exit successfully.
>+      if (!reduced_res.has_value()) {
>+        return testing::AssertionSuccess();
>+      }
>+      // If the optional is not empty and the value is falsy, an invariant check
>+      // failed so the test must exit to propegate the failure.
>+      if (!reduced_res.value()) {
>+        return reduced_res.value();
>+      }
>+      // If the optional is not empty and the value is not falsy, it means
>+      // exceptions were thrown but the invariants passed so the test must
>+      // continue to run.
>+    }
>+  }
>+
>+  Factory factory_;
>+  Operation operation_;
>+  std::tuple<Invariants...> invariants_;
>+};
>+
>+}  // namespace exceptions_internal
>+
>+/*
>+ * Constructs an empty ExceptionSafetyTester. All ExceptionSafetyTester
>+ * objects are immutable and all With[thing] mutation methods return new
>+ * instances of ExceptionSafetyTester.
>+ *
>+ * In order to test a T for exception safety, a factory for that T, a testable
>+ * operation, and at least one invariant callback returning an assertion
>+ * result must be applied using the respective methods.
>+ */
>+inline exceptions_internal::ExceptionSafetyTester<>
>+MakeExceptionSafetyTester() {
>+  return {};
>+}
>+
>+}  // namespace testing
>+
>+#endif  // ABSL_BASE_INTERNAL_EXCEPTION_SAFETY_TESTING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_testing.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_testing.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..0cf7918e4c67788971cf94337a279466063c6b3f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/exception_testing.h
>@@ -0,0 +1,42 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Testing utilities for ABSL types which throw exceptions.
>+
>+#ifndef ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_
>+#define ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+
>+// ABSL_BASE_INTERNAL_EXPECT_FAIL tests either for a specified thrown exception
>+// if exceptions are enabled, or for death with a specified text in the error
>+// message
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \
>+  EXPECT_THROW(expr, exception_t)
>+
>+#elif defined(__ANDROID__)
>+// Android asserts do not log anywhere that gtest can currently inspect.
>+// So we expect exit, but cannot match the message.
>+#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \
>+  EXPECT_DEATH(expr, ".*")
>+#else
>+#define ABSL_BASE_INTERNAL_EXPECT_FAIL(expr, exception_t, text) \
>+  EXPECT_DEATH_IF_SUPPORTED(expr, text)
>+
>+#endif
>+
>+#endif  // ABSL_BASE_INTERNAL_EXCEPTION_TESTING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/hide_ptr.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/hide_ptr.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..45cf438912c2714976eba6a7794f55cf2804ae82
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/hide_ptr.h
>@@ -0,0 +1,47 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INTERNAL_HIDE_PTR_H_
>+#define ABSL_BASE_INTERNAL_HIDE_PTR_H_
>+
>+#include <cstdint>
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// Arbitrary value with high bits set. Xor'ing with it is unlikely
>+// to map one valid pointer to another valid pointer.
>+constexpr uintptr_t HideMask() {
>+  return (uintptr_t{0xF03A5F7BU} << (sizeof(uintptr_t) - 4) * 8) | 0xF03A5F7BU;
>+}
>+
>+// Hide a pointer from the leak checker. For internal use only.
>+// Differs from absl::IgnoreLeak(ptr) in that absl::IgnoreLeak(ptr) causes ptr
>+// and all objects reachable from ptr to be ignored by the leak checker.
>+template <class T>
>+inline uintptr_t HidePtr(T* ptr) {
>+  return reinterpret_cast<uintptr_t>(ptr) ^ HideMask();
>+}
>+
>+// Return a pointer that has been hidden from the leak checker.
>+// For internal use only.
>+template <class T>
>+inline T* UnhidePtr(uintptr_t hidden) {
>+  return reinterpret_cast<T*>(hidden ^ HideMask());
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_HIDE_PTR_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/identity.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/identity.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a1a5d70a84dd34d05ff23f662d50d3c418d6caf9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/identity.h
>@@ -0,0 +1,33 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_IDENTITY_H_
>+#define ABSL_BASE_INTERNAL_IDENTITY_H_
>+
>+namespace absl {
>+namespace internal {
>+
>+template <typename T>
>+struct identity {
>+  typedef T type;
>+};
>+
>+template <typename T>
>+using identity_t = typename identity<T>::type;
>+
>+}  // namespace internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_IDENTITY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..f7bb8c56525d88e52696050ca142aec651d1b495
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable.h
>@@ -0,0 +1,107 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INTERNAL_INLINE_VARIABLE_EMULATION_H_
>+#define ABSL_BASE_INTERNAL_INLINE_VARIABLE_EMULATION_H_
>+
>+#include <type_traits>
>+
>+#include "absl/base/internal/identity.h"
>+
>+// File:
>+//   This file define a macro that allows the creation of or emulation of C++17
>+//   inline variables based on whether or not the feature is supported.
>+
>+////////////////////////////////////////////////////////////////////////////////
>+// Macro: ABSL_INTERNAL_INLINE_CONSTEXPR(type, name, init)
>+//
>+// Description:
>+//   Expands to the equivalent of an inline constexpr instance of the specified
>+//   `type` and `name`, initialized to the value `init`. If the compiler being
>+//   used is detected as supporting actual inline variables as a language
>+//   feature, then the macro expands to an actual inline variable definition.
>+//
>+// Requires:
>+//   `type` is a type that is usable in an extern variable declaration.
>+//
>+// Requires: `name` is a valid identifier
>+//
>+// Requires:
>+//   `init` is an expression that can be used in the following definition:
>+//     constexpr type name = init;
>+//
>+// Usage:
>+//
>+//   // Equivalent to: `inline constexpr size_t variant_npos = -1;`
>+//   ABSL_INTERNAL_INLINE_CONSTEXPR(size_t, variant_npos, -1);
>+//
>+// Differences in implementation:
>+//   For a direct, language-level inline variable, decltype(name) will be the
>+//   type that was specified along with const qualification, whereas for
>+//   emulated inline variables, decltype(name) may be different (in practice
>+//   it will likely be a reference type).
>+////////////////////////////////////////////////////////////////////////////////
>+
>+#ifdef __cpp_inline_variables
>+
>+// Clang's -Wmissing-variable-declarations option erroneously warned that
>+// inline constexpr objects need to be pre-declared. This has now been fixed,
>+// but we will need to support this workaround for people building with older
>+// versions of clang.
>+//
>+// Bug: https://bugs.llvm.org/show_bug.cgi?id=35862
>+//
>+// Note:
>+//   identity_t is used here so that the const and name are in the
>+//   appropriate place for pointer types, reference types, function pointer
>+//   types, etc..
>+#if defined(__clang__)
>+#define ABSL_INTERNAL_EXTERN_DECL(type, name) \
>+  extern const ::absl::internal::identity_t<type> name;
>+#else  // Otherwise, just define the macro to do nothing.
>+#define ABSL_INTERNAL_EXTERN_DECL(type, name)
>+#endif  // defined(__clang__)
>+
>+// See above comment at top of file for details.
>+#define ABSL_INTERNAL_INLINE_CONSTEXPR(type, name, init) \
>+  ABSL_INTERNAL_EXTERN_DECL(type, name)                  \
>+  inline constexpr ::absl::internal::identity_t<type> name = init
>+
>+#else
>+
>+// See above comment at top of file for details.
>+//
>+// Note:
>+//   identity_t is used here so that the const and name are in the
>+//   appropriate place for pointer types, reference types, function pointer
>+//   types, etc..
>+#define ABSL_INTERNAL_INLINE_CONSTEXPR(var_type, name, init)                  \
>+  template <class /*AbslInternalDummy*/ = void>                               \
>+  struct AbslInternalInlineVariableHolder##name {                             \
>+    static constexpr ::absl::internal::identity_t<var_type> kInstance = init; \
>+  };                                                                          \
>+                                                                              \
>+  template <class AbslInternalDummy>                                          \
>+  constexpr ::absl::internal::identity_t<var_type>                            \
>+      AbslInternalInlineVariableHolder##name<AbslInternalDummy>::kInstance;   \
>+                                                                              \
>+  static constexpr const ::absl::internal::identity_t<var_type>&              \
>+      name = /* NOLINT */                                                     \
>+      AbslInternalInlineVariableHolder##name<>::kInstance;                    \
>+  static_assert(sizeof(void (*)(decltype(name))) != 0,                        \
>+                "Silence unused variable warnings.")
>+
>+#endif  // __cpp_inline_variables
>+
>+#endif  // ABSL_BASE_INTERNAL_INLINE_VARIABLE_EMULATION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a0dd2bb28a402a285a4e6ae5ace0e51dc6bcb4f1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/inline_variable_testing.h
>@@ -0,0 +1,44 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INLINE_VARIABLE_TESTING_H_
>+#define ABSL_BASE_INLINE_VARIABLE_TESTING_H_
>+
>+#include "absl/base/internal/inline_variable.h"
>+
>+namespace absl {
>+namespace inline_variable_testing_internal {
>+
>+struct Foo {
>+  int value = 5;
>+};
>+
>+ABSL_INTERNAL_INLINE_CONSTEXPR(Foo, inline_variable_foo, {});
>+ABSL_INTERNAL_INLINE_CONSTEXPR(Foo, other_inline_variable_foo, {});
>+
>+ABSL_INTERNAL_INLINE_CONSTEXPR(int, inline_variable_int, 5);
>+ABSL_INTERNAL_INLINE_CONSTEXPR(int, other_inline_variable_int, 5);
>+
>+ABSL_INTERNAL_INLINE_CONSTEXPR(void(*)(), inline_variable_fun_ptr, nullptr);
>+
>+const Foo& get_foo_a();
>+const Foo& get_foo_b();
>+
>+const int& get_int_a();
>+const int& get_int_b();
>+
>+}  // namespace inline_variable_testing_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INLINE_VARIABLE_TESTING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/invoke.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/invoke.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c3f4f60637ca9d2d4e842620a5642f85336ca98
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/invoke.h
>@@ -0,0 +1,188 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// absl::base_internal::Invoke(f, args...) is an implementation of
>+// INVOKE(f, args...) from section [func.require] of the C++ standard.
>+//
>+// [func.require]
>+// Define INVOKE (f, t1, t2, ..., tN) as follows:
>+// 1. (t1.*f)(t2, ..., tN) when f is a pointer to a member function of a class T
>+//    and t1 is an object of type T or a reference to an object of type T or a
>+//    reference to an object of a type derived from T;
>+// 2. ((*t1).*f)(t2, ..., tN) when f is a pointer to a member function of a
>+//    class T and t1 is not one of the types described in the previous item;
>+// 3. t1.*f when N == 1 and f is a pointer to member data of a class T and t1 is
>+//    an object of type T or a reference to an object of type T or a reference
>+//    to an object of a type derived from T;
>+// 4. (*t1).*f when N == 1 and f is a pointer to member data of a class T and t1
>+//    is not one of the types described in the previous item;
>+// 5. f(t1, t2, ..., tN) in all other cases.
>+//
>+// The implementation is SFINAE-friendly: substitution failure within Invoke()
>+// isn't an error.
>+
>+#ifndef ABSL_BASE_INTERNAL_INVOKE_H_
>+#define ABSL_BASE_INTERNAL_INVOKE_H_
>+
>+#include <algorithm>
>+#include <type_traits>
>+#include <utility>
>+
>+// The following code is internal implementation detail.  See the comment at the
>+// top of this file for the API documentation.
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// The five classes below each implement one of the clauses from the definition
>+// of INVOKE. The inner class template Accept<F, Args...> checks whether the
>+// clause is applicable; static function template Invoke(f, args...) does the
>+// invocation.
>+//
>+// By separating the clause selection logic from invocation we make sure that
>+// Invoke() does exactly what the standard says.
>+
>+template <typename Derived>
>+struct StrippedAccept {
>+  template <typename... Args>
>+  struct Accept : Derived::template AcceptImpl<typename std::remove_cv<
>+                      typename std::remove_reference<Args>::type>::type...> {};
>+};
>+
>+// (t1.*f)(t2, ..., tN) when f is a pointer to a member function of a class T
>+// and t1 is an object of type T or a reference to an object of type T or a
>+// reference to an object of a type derived from T.
>+struct MemFunAndRef : StrippedAccept<MemFunAndRef> {
>+  template <typename... Args>
>+  struct AcceptImpl : std::false_type {};
>+
>+  template <typename R, typename C, typename... Params, typename Obj,
>+            typename... Args>
>+  struct AcceptImpl<R (C::*)(Params...), Obj, Args...>
>+      : std::is_base_of<C, Obj> {};
>+
>+  template <typename R, typename C, typename... Params, typename Obj,
>+            typename... Args>
>+  struct AcceptImpl<R (C::*)(Params...) const, Obj, Args...>
>+      : std::is_base_of<C, Obj> {};
>+
>+  template <typename MemFun, typename Obj, typename... Args>
>+  static decltype((std::declval<Obj>().*
>+                   std::declval<MemFun>())(std::declval<Args>()...))
>+  Invoke(MemFun&& mem_fun, Obj&& obj, Args&&... args) {
>+    return (std::forward<Obj>(obj).*
>+            std::forward<MemFun>(mem_fun))(std::forward<Args>(args)...);
>+  }
>+};
>+
>+// ((*t1).*f)(t2, ..., tN) when f is a pointer to a member function of a
>+// class T and t1 is not one of the types described in the previous item.
>+struct MemFunAndPtr : StrippedAccept<MemFunAndPtr> {
>+  template <typename... Args>
>+  struct AcceptImpl : std::false_type {};
>+
>+  template <typename R, typename C, typename... Params, typename Ptr,
>+            typename... Args>
>+  struct AcceptImpl<R (C::*)(Params...), Ptr, Args...>
>+      : std::integral_constant<bool, !std::is_base_of<C, Ptr>::value> {};
>+
>+  template <typename R, typename C, typename... Params, typename Ptr,
>+            typename... Args>
>+  struct AcceptImpl<R (C::*)(Params...) const, Ptr, Args...>
>+      : std::integral_constant<bool, !std::is_base_of<C, Ptr>::value> {};
>+
>+  template <typename MemFun, typename Ptr, typename... Args>
>+  static decltype(((*std::declval<Ptr>()).*
>+                   std::declval<MemFun>())(std::declval<Args>()...))
>+  Invoke(MemFun&& mem_fun, Ptr&& ptr, Args&&... args) {
>+    return ((*std::forward<Ptr>(ptr)).*
>+            std::forward<MemFun>(mem_fun))(std::forward<Args>(args)...);
>+  }
>+};
>+
>+// t1.*f when N == 1 and f is a pointer to member data of a class T and t1 is
>+// an object of type T or a reference to an object of type T or a reference
>+// to an object of a type derived from T.
>+struct DataMemAndRef : StrippedAccept<DataMemAndRef> {
>+  template <typename... Args>
>+  struct AcceptImpl : std::false_type {};
>+
>+  template <typename R, typename C, typename Obj>
>+  struct AcceptImpl<R C::*, Obj> : std::is_base_of<C, Obj> {};
>+
>+  template <typename DataMem, typename Ref>
>+  static decltype(std::declval<Ref>().*std::declval<DataMem>()) Invoke(
>+      DataMem&& data_mem, Ref&& ref) {
>+    return std::forward<Ref>(ref).*std::forward<DataMem>(data_mem);
>+  }
>+};
>+
>+// (*t1).*f when N == 1 and f is a pointer to member data of a class T and t1
>+// is not one of the types described in the previous item.
>+struct DataMemAndPtr : StrippedAccept<DataMemAndPtr> {
>+  template <typename... Args>
>+  struct AcceptImpl : std::false_type {};
>+
>+  template <typename R, typename C, typename Ptr>
>+  struct AcceptImpl<R C::*, Ptr>
>+      : std::integral_constant<bool, !std::is_base_of<C, Ptr>::value> {};
>+
>+  template <typename DataMem, typename Ptr>
>+  static decltype((*std::declval<Ptr>()).*std::declval<DataMem>()) Invoke(
>+      DataMem&& data_mem, Ptr&& ptr) {
>+    return (*std::forward<Ptr>(ptr)).*std::forward<DataMem>(data_mem);
>+  }
>+};
>+
>+// f(t1, t2, ..., tN) in all other cases.
>+struct Callable {
>+  // Callable doesn't have Accept because it's the last clause that gets picked
>+  // when none of the previous clauses are applicable.
>+  template <typename F, typename... Args>
>+  static decltype(std::declval<F>()(std::declval<Args>()...)) Invoke(
>+      F&& f, Args&&... args) {
>+    return std::forward<F>(f)(std::forward<Args>(args)...);
>+  }
>+};
>+
>+// Resolves to the first matching clause.
>+template <typename... Args>
>+struct Invoker {
>+  typedef typename std::conditional<
>+      MemFunAndRef::Accept<Args...>::value, MemFunAndRef,
>+      typename std::conditional<
>+          MemFunAndPtr::Accept<Args...>::value, MemFunAndPtr,
>+          typename std::conditional<
>+              DataMemAndRef::Accept<Args...>::value, DataMemAndRef,
>+              typename std::conditional<DataMemAndPtr::Accept<Args...>::value,
>+                                        DataMemAndPtr, Callable>::type>::type>::
>+          type>::type type;
>+};
>+
>+// The result type of Invoke<F, Args...>.
>+template <typename F, typename... Args>
>+using InvokeT = decltype(Invoker<F, Args...>::type::Invoke(
>+    std::declval<F>(), std::declval<Args>()...));
>+
>+// Invoke(f, args...) is an implementation of INVOKE(f, args...) from section
>+// [func.require] of the C++ standard.
>+template <typename F, typename... Args>
>+InvokeT<F, Args...> Invoke(F&& f, Args&&... args) {
>+  return Invoker<F, Args...>::type::Invoke(std::forward<F>(f),
>+                                           std::forward<Args>(args)...);
>+}
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_INVOKE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0626cd5478d97004eb1e9cde215a90e4862d29f1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc
>@@ -0,0 +1,604 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// A low-level allocator that can be used by other low-level
>+// modules without introducing dependency cycles.
>+// This allocator is slow and wasteful of memory;
>+// it should not be used when performance is key.
>+
>+#include "absl/base/internal/low_level_alloc.h"
>+
>+#include <type_traits>
>+
>+#include "absl/base/call_once.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/direct_mmap.h"
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/thread_annotations.h"
>+
>+// LowLevelAlloc requires that the platform support low-level
>+// allocation of virtual memory. Platforms lacking this cannot use
>+// LowLevelAlloc.
>+#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
>+
>+#ifndef _WIN32
>+#include <pthread.h>
>+#include <signal.h>
>+#include <sys/mman.h>
>+#include <unistd.h>
>+#else
>+#include <windows.h>
>+#endif
>+
>+#include <string.h>
>+#include <algorithm>
>+#include <atomic>
>+#include <cerrno>
>+#include <cstddef>
>+#include <new>                   // for placement-new
>+
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+
>+// MAP_ANONYMOUS
>+#if defined(__APPLE__)
>+// For mmap, Linux defines both MAP_ANONYMOUS and MAP_ANON and says MAP_ANON is
>+// deprecated. In Darwin, MAP_ANON is all there is.
>+#if !defined MAP_ANONYMOUS
>+#define MAP_ANONYMOUS MAP_ANON
>+#endif  // !MAP_ANONYMOUS
>+#endif  // __APPLE__
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// A first-fit allocator with amortized logarithmic free() time.
>+
>+// ---------------------------------------------------------------------------
>+static const int kMaxLevel = 30;
>+
>+namespace {
>+// This struct describes one allocated block, or one free block.
>+struct AllocList {
>+  struct Header {
>+    // Size of entire region, including this field. Must be
>+    // first. Valid in both allocated and unallocated blocks.
>+    uintptr_t size;
>+
>+    // kMagicAllocated or kMagicUnallocated xor this.
>+    uintptr_t magic;
>+
>+    // Pointer to parent arena.
>+    LowLevelAlloc::Arena *arena;
>+
>+    // Aligns regions to 0 mod 2*sizeof(void*).
>+    void *dummy_for_alignment;
>+  } header;
>+
>+  // Next two fields: in unallocated blocks: freelist skiplist data
>+  //                  in allocated blocks: overlaps with client data
>+
>+  // Levels in skiplist used.
>+  int levels;
>+
>+  // Actually has levels elements. The AllocList node may not have room
>+  // for all kMaxLevel entries. See max_fit in LLA_SkiplistLevels().
>+  AllocList *next[kMaxLevel];
>+};
>+}  // namespace
>+
>+// ---------------------------------------------------------------------------
>+// A trivial skiplist implementation.  This is used to keep the freelist
>+// in address order while taking only logarithmic time per insert and delete.
>+
>+// An integer approximation of log2(size/base)
>+// Requires size >= base.
>+static int IntLog2(size_t size, size_t base) {
>+  int result = 0;
>+  for (size_t i = size; i > base; i >>= 1) {  // i == floor(size/2**result)
>+    result++;
>+  }
>+  //    floor(size / 2**result) <= base < floor(size / 2**(result-1))
>+  // =>     log2(size/(base+1)) <= result < 1+log2(size/base)
>+  // => result ~= log2(size/base)
>+  return result;
>+}
>+
>+// Return a random integer n:  p(n)=1/(2**n) if 1 <= n; p(n)=0 if n < 1.
>+static int Random(uint32_t *state) {
>+  uint32_t r = *state;
>+  int result = 1;
>+  while ((((r = r*1103515245 + 12345) >> 30) & 1) == 0) {
>+    result++;
>+  }
>+  *state = r;
>+  return result;
>+}
>+
>+// Return a number of skiplist levels for a node of size bytes, where
>+// base is the minimum node size.  Compute level=log2(size / base)+n
>+// where n is 1 if random is false and otherwise a random number generated with
>+// the standard distribution for a skiplist:  See Random() above.
>+// Bigger nodes tend to have more skiplist levels due to the log2(size / base)
>+// term, so first-fit searches touch fewer nodes.  "level" is clipped so
>+// level<kMaxLevel and next[level-1] will fit in the node.
>+// 0 < LLA_SkiplistLevels(x,y,false) <= LLA_SkiplistLevels(x,y,true) < kMaxLevel
>+static int LLA_SkiplistLevels(size_t size, size_t base, uint32_t *random) {
>+  // max_fit is the maximum number of levels that will fit in a node for the
>+  // given size.   We can't return more than max_fit, no matter what the
>+  // random number generator says.
>+  size_t max_fit = (size - offsetof(AllocList, next)) / sizeof(AllocList *);
>+  int level = IntLog2(size, base) + (random != nullptr ? Random(random) : 1);
>+  if (static_cast<size_t>(level) > max_fit) level = static_cast<int>(max_fit);
>+  if (level > kMaxLevel-1) level = kMaxLevel - 1;
>+  ABSL_RAW_CHECK(level >= 1, "block not big enough for even one level");
>+  return level;
>+}
>+
>+// Return "atleast", the first element of AllocList *head s.t. *atleast >= *e.
>+// For 0 <= i < head->levels, set prev[i] to "no_greater", where no_greater
>+// points to the last element at level i in the AllocList less than *e, or is
>+// head if no such element exists.
>+static AllocList *LLA_SkiplistSearch(AllocList *head,
>+                                     AllocList *e, AllocList **prev) {
>+  AllocList *p = head;
>+  for (int level = head->levels - 1; level >= 0; level--) {
>+    for (AllocList *n; (n = p->next[level]) != nullptr && n < e; p = n) {
>+    }
>+    prev[level] = p;
>+  }
>+  return (head->levels == 0) ? nullptr : prev[0]->next[0];
>+}
>+
>+// Insert element *e into AllocList *head.  Set prev[] as LLA_SkiplistSearch.
>+// Requires that e->levels be previously set by the caller (using
>+// LLA_SkiplistLevels())
>+static void LLA_SkiplistInsert(AllocList *head, AllocList *e,
>+                               AllocList **prev) {
>+  LLA_SkiplistSearch(head, e, prev);
>+  for (; head->levels < e->levels; head->levels++) {  // extend prev pointers
>+    prev[head->levels] = head;                        // to all *e's levels
>+  }
>+  for (int i = 0; i != e->levels; i++) {  // add element to list
>+    e->next[i] = prev[i]->next[i];
>+    prev[i]->next[i] = e;
>+  }
>+}
>+
>+// Remove element *e from AllocList *head.  Set prev[] as LLA_SkiplistSearch().
>+// Requires that e->levels be previous set by the caller (using
>+// LLA_SkiplistLevels())
>+static void LLA_SkiplistDelete(AllocList *head, AllocList *e,
>+                               AllocList **prev) {
>+  AllocList *found = LLA_SkiplistSearch(head, e, prev);
>+  ABSL_RAW_CHECK(e == found, "element not in freelist");
>+  for (int i = 0; i != e->levels && prev[i]->next[i] == e; i++) {
>+    prev[i]->next[i] = e->next[i];
>+  }
>+  while (head->levels > 0 && head->next[head->levels - 1] == nullptr) {
>+    head->levels--;   // reduce head->levels if level unused
>+  }
>+}
>+
>+// ---------------------------------------------------------------------------
>+// Arena implementation
>+
>+// Metadata for an LowLevelAlloc arena instance.
>+struct LowLevelAlloc::Arena {
>+  // Constructs an arena with the given LowLevelAlloc flags.
>+  explicit Arena(uint32_t flags_value);
>+
>+  base_internal::SpinLock mu;
>+  // Head of free list, sorted by address
>+  AllocList freelist GUARDED_BY(mu);
>+  // Count of allocated blocks
>+  int32_t allocation_count GUARDED_BY(mu);
>+  // flags passed to NewArena
>+  const uint32_t flags;
>+  // Result of getpagesize()
>+  const size_t pagesize;
>+  // Lowest power of two >= max(16, sizeof(AllocList))
>+  const size_t roundup;
>+  // Smallest allocation block size
>+  const size_t min_size;
>+  // PRNG state
>+  uint32_t random GUARDED_BY(mu);
>+};
>+
>+namespace {
>+using ArenaStorage = std::aligned_storage<sizeof(LowLevelAlloc::Arena),
>+                                          alignof(LowLevelAlloc::Arena)>::type;
>+
>+// Static storage space for the lazily-constructed, default global arena
>+// instances.  We require this space because the whole point of LowLevelAlloc
>+// is to avoid relying on malloc/new.
>+ArenaStorage default_arena_storage;
>+ArenaStorage unhooked_arena_storage;
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+ArenaStorage unhooked_async_sig_safe_arena_storage;
>+#endif
>+
>+// We must use LowLevelCallOnce here to construct the global arenas, rather than
>+// using function-level statics, to avoid recursively invoking the scheduler.
>+absl::once_flag create_globals_once;
>+
>+void CreateGlobalArenas() {
>+  new (&default_arena_storage)
>+      LowLevelAlloc::Arena(LowLevelAlloc::kCallMallocHook);
>+  new (&unhooked_arena_storage) LowLevelAlloc::Arena(0);
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+  new (&unhooked_async_sig_safe_arena_storage)
>+      LowLevelAlloc::Arena(LowLevelAlloc::kAsyncSignalSafe);
>+#endif
>+}
>+
>+// Returns a global arena that does not call into hooks.  Used by NewArena()
>+// when kCallMallocHook is not set.
>+LowLevelAlloc::Arena* UnhookedArena() {
>+  base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas);
>+  return reinterpret_cast<LowLevelAlloc::Arena*>(&unhooked_arena_storage);
>+}
>+
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+// Returns a global arena that is async-signal safe.  Used by NewArena() when
>+// kAsyncSignalSafe is set.
>+LowLevelAlloc::Arena *UnhookedAsyncSigSafeArena() {
>+  base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas);
>+  return reinterpret_cast<LowLevelAlloc::Arena *>(
>+      &unhooked_async_sig_safe_arena_storage);
>+}
>+#endif
>+
>+}  // namespace
>+
>+// Returns the default arena, as used by LowLevelAlloc::Alloc() and friends.
>+LowLevelAlloc::Arena *LowLevelAlloc::DefaultArena() {
>+  base_internal::LowLevelCallOnce(&create_globals_once, CreateGlobalArenas);
>+  return reinterpret_cast<LowLevelAlloc::Arena*>(&default_arena_storage);
>+}
>+
>+// magic numbers to identify allocated and unallocated blocks
>+static const uintptr_t kMagicAllocated = 0x4c833e95U;
>+static const uintptr_t kMagicUnallocated = ~kMagicAllocated;
>+
>+namespace {
>+class SCOPED_LOCKABLE ArenaLock {
>+ public:
>+  explicit ArenaLock(LowLevelAlloc::Arena *arena)
>+      EXCLUSIVE_LOCK_FUNCTION(arena->mu)
>+      : arena_(arena) {
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+    if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
>+      sigset_t all;
>+      sigfillset(&all);
>+      mask_valid_ = pthread_sigmask(SIG_BLOCK, &all, &mask_) == 0;
>+    }
>+#endif
>+    arena_->mu.Lock();
>+  }
>+  ~ArenaLock() { ABSL_RAW_CHECK(left_, "haven't left Arena region"); }
>+  void Leave() UNLOCK_FUNCTION() {
>+    arena_->mu.Unlock();
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+    if (mask_valid_) {
>+      pthread_sigmask(SIG_SETMASK, &mask_, nullptr);
>+    }
>+#endif
>+    left_ = true;
>+  }
>+
>+ private:
>+  bool left_ = false;  // whether left region
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+  bool mask_valid_ = false;
>+  sigset_t mask_;  // old mask of blocked signals
>+#endif
>+  LowLevelAlloc::Arena *arena_;
>+  ArenaLock(const ArenaLock &) = delete;
>+  ArenaLock &operator=(const ArenaLock &) = delete;
>+};
>+}  // namespace
>+
>+// create an appropriate magic number for an object at "ptr"
>+// "magic" should be kMagicAllocated or kMagicUnallocated
>+inline static uintptr_t Magic(uintptr_t magic, AllocList::Header *ptr) {
>+  return magic ^ reinterpret_cast<uintptr_t>(ptr);
>+}
>+
>+namespace {
>+size_t GetPageSize() {
>+#ifdef _WIN32
>+  SYSTEM_INFO system_info;
>+  GetSystemInfo(&system_info);
>+  return std::max(system_info.dwPageSize, system_info.dwAllocationGranularity);
>+#else
>+  return getpagesize();
>+#endif
>+}
>+
>+size_t RoundedUpBlockSize() {
>+  // Round up block sizes to a power of two close to the header size.
>+  size_t roundup = 16;
>+  while (roundup < sizeof(AllocList::Header)) {
>+    roundup += roundup;
>+  }
>+  return roundup;
>+}
>+
>+}  // namespace
>+
>+LowLevelAlloc::Arena::Arena(uint32_t flags_value)
>+    : mu(base_internal::SCHEDULE_KERNEL_ONLY),
>+      allocation_count(0),
>+      flags(flags_value),
>+      pagesize(GetPageSize()),
>+      roundup(RoundedUpBlockSize()),
>+      min_size(2 * roundup),
>+      random(0) {
>+  freelist.header.size = 0;
>+  freelist.header.magic =
>+      Magic(kMagicUnallocated, &freelist.header);
>+  freelist.header.arena = this;
>+  freelist.levels = 0;
>+  memset(freelist.next, 0, sizeof(freelist.next));
>+}
>+
>+// L < meta_data_arena->mu
>+LowLevelAlloc::Arena *LowLevelAlloc::NewArena(int32_t flags) {
>+  Arena *meta_data_arena = DefaultArena();
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+  if ((flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
>+    meta_data_arena = UnhookedAsyncSigSafeArena();
>+  } else  // NOLINT(readability/braces)
>+#endif
>+      if ((flags & LowLevelAlloc::kCallMallocHook) == 0) {
>+    meta_data_arena = UnhookedArena();
>+  }
>+  Arena *result =
>+    new (AllocWithArena(sizeof (*result), meta_data_arena)) Arena(flags);
>+  return result;
>+}
>+
>+// L < arena->mu, L < arena->arena->mu
>+bool LowLevelAlloc::DeleteArena(Arena *arena) {
>+  ABSL_RAW_CHECK(
>+      arena != nullptr && arena != DefaultArena() && arena != UnhookedArena(),
>+      "may not delete default arena");
>+  ArenaLock section(arena);
>+  if (arena->allocation_count != 0) {
>+    section.Leave();
>+    return false;
>+  }
>+  while (arena->freelist.next[0] != nullptr) {
>+    AllocList *region = arena->freelist.next[0];
>+    size_t size = region->header.size;
>+    arena->freelist.next[0] = region->next[0];
>+    ABSL_RAW_CHECK(
>+        region->header.magic == Magic(kMagicUnallocated, &region->header),
>+        "bad magic number in DeleteArena()");
>+    ABSL_RAW_CHECK(region->header.arena == arena,
>+                   "bad arena pointer in DeleteArena()");
>+    ABSL_RAW_CHECK(size % arena->pagesize == 0,
>+                   "empty arena has non-page-aligned block size");
>+    ABSL_RAW_CHECK(reinterpret_cast<uintptr_t>(region) % arena->pagesize == 0,
>+                   "empty arena has non-page-aligned block");
>+    int munmap_result;
>+#ifdef _WIN32
>+    munmap_result = VirtualFree(region, 0, MEM_RELEASE);
>+    ABSL_RAW_CHECK(munmap_result != 0,
>+                   "LowLevelAlloc::DeleteArena: VitualFree failed");
>+#else
>+    if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) == 0) {
>+      munmap_result = munmap(region, size);
>+    } else {
>+      munmap_result = base_internal::DirectMunmap(region, size);
>+    }
>+    if (munmap_result != 0) {
>+      ABSL_RAW_LOG(FATAL, "LowLevelAlloc::DeleteArena: munmap failed: %d",
>+                   errno);
>+    }
>+#endif
>+  }
>+  section.Leave();
>+  arena->~Arena();
>+  Free(arena);
>+  return true;
>+}
>+
>+// ---------------------------------------------------------------------------
>+
>+// Addition, checking for overflow.  The intent is to die if an external client
>+// manages to push through a request that would cause arithmetic to fail.
>+static inline uintptr_t CheckedAdd(uintptr_t a, uintptr_t b) {
>+  uintptr_t sum = a + b;
>+  ABSL_RAW_CHECK(sum >= a, "LowLevelAlloc arithmetic overflow");
>+  return sum;
>+}
>+
>+// Return value rounded up to next multiple of align.
>+// align must be a power of two.
>+static inline uintptr_t RoundUp(uintptr_t addr, uintptr_t align) {
>+  return CheckedAdd(addr, align - 1) & ~(align - 1);
>+}
>+
>+// Equivalent to "return prev->next[i]" but with sanity checking
>+// that the freelist is in the correct order, that it
>+// consists of regions marked "unallocated", and that no two regions
>+// are adjacent in memory (they should have been coalesced).
>+// L < arena->mu
>+static AllocList *Next(int i, AllocList *prev, LowLevelAlloc::Arena *arena) {
>+  ABSL_RAW_CHECK(i < prev->levels, "too few levels in Next()");
>+  AllocList *next = prev->next[i];
>+  if (next != nullptr) {
>+    ABSL_RAW_CHECK(
>+        next->header.magic == Magic(kMagicUnallocated, &next->header),
>+        "bad magic number in Next()");
>+    ABSL_RAW_CHECK(next->header.arena == arena, "bad arena pointer in Next()");
>+    if (prev != &arena->freelist) {
>+      ABSL_RAW_CHECK(prev < next, "unordered freelist");
>+      ABSL_RAW_CHECK(reinterpret_cast<char *>(prev) + prev->header.size <
>+                         reinterpret_cast<char *>(next),
>+                     "malformed freelist");
>+    }
>+  }
>+  return next;
>+}
>+
>+// Coalesce list item "a" with its successor if they are adjacent.
>+static void Coalesce(AllocList *a) {
>+  AllocList *n = a->next[0];
>+  if (n != nullptr && reinterpret_cast<char *>(a) + a->header.size ==
>+                          reinterpret_cast<char *>(n)) {
>+    LowLevelAlloc::Arena *arena = a->header.arena;
>+    a->header.size += n->header.size;
>+    n->header.magic = 0;
>+    n->header.arena = nullptr;
>+    AllocList *prev[kMaxLevel];
>+    LLA_SkiplistDelete(&arena->freelist, n, prev);
>+    LLA_SkiplistDelete(&arena->freelist, a, prev);
>+    a->levels = LLA_SkiplistLevels(a->header.size, arena->min_size,
>+                                   &arena->random);
>+    LLA_SkiplistInsert(&arena->freelist, a, prev);
>+  }
>+}
>+
>+// Adds block at location "v" to the free list
>+// L >= arena->mu
>+static void AddToFreelist(void *v, LowLevelAlloc::Arena *arena) {
>+  AllocList *f = reinterpret_cast<AllocList *>(
>+                        reinterpret_cast<char *>(v) - sizeof (f->header));
>+  ABSL_RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header),
>+                 "bad magic number in AddToFreelist()");
>+  ABSL_RAW_CHECK(f->header.arena == arena,
>+                 "bad arena pointer in AddToFreelist()");
>+  f->levels = LLA_SkiplistLevels(f->header.size, arena->min_size,
>+                                 &arena->random);
>+  AllocList *prev[kMaxLevel];
>+  LLA_SkiplistInsert(&arena->freelist, f, prev);
>+  f->header.magic = Magic(kMagicUnallocated, &f->header);
>+  Coalesce(f);                  // maybe coalesce with successor
>+  Coalesce(prev[0]);            // maybe coalesce with predecessor
>+}
>+
>+// Frees storage allocated by LowLevelAlloc::Alloc().
>+// L < arena->mu
>+void LowLevelAlloc::Free(void *v) {
>+  if (v != nullptr) {
>+    AllocList *f = reinterpret_cast<AllocList *>(
>+                        reinterpret_cast<char *>(v) - sizeof (f->header));
>+    ABSL_RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header),
>+                   "bad magic number in Free()");
>+    LowLevelAlloc::Arena *arena = f->header.arena;
>+    ArenaLock section(arena);
>+    AddToFreelist(v, arena);
>+    ABSL_RAW_CHECK(arena->allocation_count > 0, "nothing in arena to free");
>+    arena->allocation_count--;
>+    section.Leave();
>+  }
>+}
>+
>+// allocates and returns a block of size bytes, to be freed with Free()
>+// L < arena->mu
>+static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) {
>+  void *result = nullptr;
>+  if (request != 0) {
>+    AllocList *s;       // will point to region that satisfies request
>+    ArenaLock section(arena);
>+    // round up with header
>+    size_t req_rnd = RoundUp(CheckedAdd(request, sizeof (s->header)),
>+                             arena->roundup);
>+    for (;;) {      // loop until we find a suitable region
>+      // find the minimum levels that a block of this size must have
>+      int i = LLA_SkiplistLevels(req_rnd, arena->min_size, nullptr) - 1;
>+      if (i < arena->freelist.levels) {   // potential blocks exist
>+        AllocList *before = &arena->freelist;  // predecessor of s
>+        while ((s = Next(i, before, arena)) != nullptr &&
>+               s->header.size < req_rnd) {
>+          before = s;
>+        }
>+        if (s != nullptr) {       // we found a region
>+          break;
>+        }
>+      }
>+      // we unlock before mmap() both because mmap() may call a callback hook,
>+      // and because it may be slow.
>+      arena->mu.Unlock();
>+      // mmap generous 64K chunks to decrease
>+      // the chances/impact of fragmentation:
>+      size_t new_pages_size = RoundUp(req_rnd, arena->pagesize * 16);
>+      void *new_pages;
>+#ifdef _WIN32
>+      new_pages = VirtualAlloc(0, new_pages_size,
>+                               MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
>+      ABSL_RAW_CHECK(new_pages != nullptr, "VirtualAlloc failed");
>+#else
>+      if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
>+        new_pages = base_internal::DirectMmap(nullptr, new_pages_size,
>+            PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
>+      } else {
>+        new_pages = mmap(nullptr, new_pages_size, PROT_WRITE | PROT_READ,
>+                         MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
>+      }
>+      if (new_pages == MAP_FAILED) {
>+        ABSL_RAW_LOG(FATAL, "mmap error: %d", errno);
>+      }
>+#endif
>+      arena->mu.Lock();
>+      s = reinterpret_cast<AllocList *>(new_pages);
>+      s->header.size = new_pages_size;
>+      // Pretend the block is allocated; call AddToFreelist() to free it.
>+      s->header.magic = Magic(kMagicAllocated, &s->header);
>+      s->header.arena = arena;
>+      AddToFreelist(&s->levels, arena);  // insert new region into free list
>+    }
>+    AllocList *prev[kMaxLevel];
>+    LLA_SkiplistDelete(&arena->freelist, s, prev);    // remove from free list
>+    // s points to the first free region that's big enough
>+    if (CheckedAdd(req_rnd, arena->min_size) <= s->header.size) {
>+      // big enough to split
>+      AllocList *n = reinterpret_cast<AllocList *>
>+                        (req_rnd + reinterpret_cast<char *>(s));
>+      n->header.size = s->header.size - req_rnd;
>+      n->header.magic = Magic(kMagicAllocated, &n->header);
>+      n->header.arena = arena;
>+      s->header.size = req_rnd;
>+      AddToFreelist(&n->levels, arena);
>+    }
>+    s->header.magic = Magic(kMagicAllocated, &s->header);
>+    ABSL_RAW_CHECK(s->header.arena == arena, "");
>+    arena->allocation_count++;
>+    section.Leave();
>+    result = &s->levels;
>+  }
>+  ABSL_ANNOTATE_MEMORY_IS_UNINITIALIZED(result, request);
>+  return result;
>+}
>+
>+void *LowLevelAlloc::Alloc(size_t request) {
>+  void *result = DoAllocWithArena(request, DefaultArena());
>+  return result;
>+}
>+
>+void *LowLevelAlloc::AllocWithArena(size_t request, Arena *arena) {
>+  ABSL_RAW_CHECK(arena != nullptr, "must pass a valid arena");
>+  void *result = DoAllocWithArena(request, arena);
>+  return result;
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_LOW_LEVEL_ALLOC_MISSING
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3c15605bed3578899389cc4ea296ceb5ba57a15e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc.h
>@@ -0,0 +1,119 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_
>+#define ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_
>+
>+// A simple thread-safe memory allocator that does not depend on
>+// mutexes or thread-specific data.  It is intended to be used
>+// sparingly, and only when malloc() would introduce an unwanted
>+// dependency, such as inside the heap-checker, or the Mutex
>+// implementation.
>+
>+// IWYU pragma: private, include "base/low_level_alloc.h"
>+
>+#include <sys/types.h>
>+#include <cstdint>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/config.h"
>+
>+// LowLevelAlloc requires that the platform support low-level
>+// allocation of virtual memory. Platforms lacking this cannot use
>+// LowLevelAlloc.
>+#ifdef ABSL_LOW_LEVEL_ALLOC_MISSING
>+#error ABSL_LOW_LEVEL_ALLOC_MISSING cannot be directly set
>+#elif !defined(ABSL_HAVE_MMAP) && !defined(_WIN32)
>+#define ABSL_LOW_LEVEL_ALLOC_MISSING 1
>+#endif
>+
>+// Using LowLevelAlloc with kAsyncSignalSafe isn't supported on Windows.
>+#ifdef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+#error ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING cannot be directly set
>+#elif defined(_WIN32)
>+#define ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING 1
>+#endif
>+
>+#include <cstddef>
>+
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+class LowLevelAlloc {
>+ public:
>+  struct Arena;       // an arena from which memory may be allocated
>+
>+  // Returns a pointer to a block of at least "request" bytes
>+  // that have been newly allocated from the specific arena.
>+  // for Alloc() call the DefaultArena() is used.
>+  // Returns 0 if passed request==0.
>+  // Does not return 0 under other circumstances; it crashes if memory
>+  // is not available.
>+  static void *Alloc(size_t request) ABSL_ATTRIBUTE_SECTION(malloc_hook);
>+  static void *AllocWithArena(size_t request, Arena *arena)
>+      ABSL_ATTRIBUTE_SECTION(malloc_hook);
>+
>+  // Deallocates a region of memory that was previously allocated with
>+  // Alloc().   Does nothing if passed 0.   "s" must be either 0,
>+  // or must have been returned from a call to Alloc() and not yet passed to
>+  // Free() since that call to Alloc().  The space is returned to the arena
>+  // from which it was allocated.
>+  static void Free(void *s) ABSL_ATTRIBUTE_SECTION(malloc_hook);
>+
>+  // ABSL_ATTRIBUTE_SECTION(malloc_hook) for Alloc* and Free
>+  // are to put all callers of MallocHook::Invoke* in this module
>+  // into special section,
>+  // so that MallocHook::GetCallerStackTrace can function accurately.
>+
>+  // Create a new arena.
>+  // The root metadata for the new arena is allocated in the
>+  // meta_data_arena; the DefaultArena() can be passed for meta_data_arena.
>+  // These values may be ored into flags:
>+  enum {
>+    // Report calls to Alloc() and Free() via the MallocHook interface.
>+    // Set in the DefaultArena.
>+    kCallMallocHook = 0x0001,
>+
>+#ifndef ABSL_LOW_LEVEL_ALLOC_ASYNC_SIGNAL_SAFE_MISSING
>+    // Make calls to Alloc(), Free() be async-signal-safe. Not set in
>+    // DefaultArena(). Not supported on all platforms.
>+    kAsyncSignalSafe = 0x0002,
>+#endif
>+  };
>+  // Construct a new arena.  The allocation of the underlying metadata honors
>+  // the provided flags.  For example, the call NewArena(kAsyncSignalSafe)
>+  // is itself async-signal-safe, as well as generatating an arena that provides
>+  // async-signal-safe Alloc/Free.
>+  static Arena *NewArena(int32_t flags);
>+
>+  // Destroys an arena allocated by NewArena and returns true,
>+  // provided no allocated blocks remain in the arena.
>+  // If allocated blocks remain in the arena, does nothing and
>+  // returns false.
>+  // It is illegal to attempt to destroy the DefaultArena().
>+  static bool DeleteArena(Arena *arena);
>+
>+  // The default arena that always exists.
>+  static Arena *DefaultArena();
>+
>+ private:
>+  LowLevelAlloc();      // no instances
>+};
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+#endif  // ABSL_BASE_INTERNAL_LOW_LEVEL_ALLOC_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf2b363299f4e2279ad51e46ebd080cead2e4545
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_alloc_test.cc
>@@ -0,0 +1,157 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/low_level_alloc.h"
>+
>+#include <stdint.h>
>+#include <stdio.h>
>+#include <stdlib.h>
>+#include <thread>  // NOLINT(build/c++11)
>+#include <unordered_map>
>+#include <utility>
>+
>+namespace absl {
>+namespace base_internal {
>+namespace {
>+
>+// This test doesn't use gtest since it needs to test that everything
>+// works before main().
>+#define TEST_ASSERT(x)                                           \
>+  if (!(x)) {                                                    \
>+    printf("TEST_ASSERT(%s) FAILED ON LINE %d\n", #x, __LINE__); \
>+    abort();                                                     \
>+  }
>+
>+// a block of memory obtained from the allocator
>+struct BlockDesc {
>+  char *ptr;      // pointer to memory
>+  int len;        // number of bytes
>+  int fill;       // filled with data starting with this
>+};
>+
>+// Check that the pattern placed in the block d
>+// by RandomizeBlockDesc is still there.
>+static void CheckBlockDesc(const BlockDesc &d) {
>+  for (int i = 0; i != d.len; i++) {
>+    TEST_ASSERT((d.ptr[i] & 0xff) == ((d.fill + i) & 0xff));
>+  }
>+}
>+
>+// Fill the block "*d" with a pattern
>+// starting with a random byte.
>+static void RandomizeBlockDesc(BlockDesc *d) {
>+  d->fill = rand() & 0xff;
>+  for (int i = 0; i != d->len; i++) {
>+    d->ptr[i] = (d->fill + i) & 0xff;
>+  }
>+}
>+
>+// Use to indicate to the malloc hooks that
>+// this calls is from LowLevelAlloc.
>+static bool using_low_level_alloc = false;
>+
>+// n times, toss a coin, and based on the outcome
>+// either allocate a new block or deallocate an old block.
>+// New blocks are placed in a std::unordered_map with a random key
>+// and initialized with RandomizeBlockDesc().
>+// If keys conflict, the older block is freed.
>+// Old blocks are always checked with CheckBlockDesc()
>+// before being freed.  At the end of the run,
>+// all remaining allocated blocks are freed.
>+// If use_new_arena is true, use a fresh arena, and then delete it.
>+// If call_malloc_hook is true and user_arena is true,
>+// allocations and deallocations are reported via the MallocHook
>+// interface.
>+static void Test(bool use_new_arena, bool call_malloc_hook, int n) {
>+  typedef std::unordered_map<int, BlockDesc> AllocMap;
>+  AllocMap allocated;
>+  AllocMap::iterator it;
>+  BlockDesc block_desc;
>+  int rnd;
>+  LowLevelAlloc::Arena *arena = 0;
>+  if (use_new_arena) {
>+    int32_t flags = call_malloc_hook ? LowLevelAlloc::kCallMallocHook : 0;
>+    arena = LowLevelAlloc::NewArena(flags);
>+  }
>+  for (int i = 0; i != n; i++) {
>+    if (i != 0 && i % 10000 == 0) {
>+      printf(".");
>+      fflush(stdout);
>+    }
>+
>+    switch (rand() & 1) {      // toss a coin
>+    case 0:     // coin came up heads: add a block
>+      using_low_level_alloc = true;
>+      block_desc.len = rand() & 0x3fff;
>+      block_desc.ptr =
>+        reinterpret_cast<char *>(
>+                        arena == 0
>+                        ? LowLevelAlloc::Alloc(block_desc.len)
>+                        : LowLevelAlloc::AllocWithArena(block_desc.len, arena));
>+      using_low_level_alloc = false;
>+      RandomizeBlockDesc(&block_desc);
>+      rnd = rand();
>+      it = allocated.find(rnd);
>+      if (it != allocated.end()) {
>+        CheckBlockDesc(it->second);
>+        using_low_level_alloc = true;
>+        LowLevelAlloc::Free(it->second.ptr);
>+        using_low_level_alloc = false;
>+        it->second = block_desc;
>+      } else {
>+        allocated[rnd] = block_desc;
>+      }
>+      break;
>+    case 1:     // coin came up tails: remove a block
>+      it = allocated.begin();
>+      if (it != allocated.end()) {
>+        CheckBlockDesc(it->second);
>+        using_low_level_alloc = true;
>+        LowLevelAlloc::Free(it->second.ptr);
>+        using_low_level_alloc = false;
>+        allocated.erase(it);
>+      }
>+      break;
>+    }
>+  }
>+  // remove all remaining blocks
>+  while ((it = allocated.begin()) != allocated.end()) {
>+    CheckBlockDesc(it->second);
>+    using_low_level_alloc = true;
>+    LowLevelAlloc::Free(it->second.ptr);
>+    using_low_level_alloc = false;
>+    allocated.erase(it);
>+  }
>+  if (use_new_arena) {
>+    TEST_ASSERT(LowLevelAlloc::DeleteArena(arena));
>+  }
>+}
>+// LowLevelAlloc is designed to be safe to call before main().
>+static struct BeforeMain {
>+  BeforeMain() {
>+    Test(false, false, 50000);
>+    Test(true, false, 50000);
>+    Test(true, true, 50000);
>+  }
>+} before_main;
>+
>+}  // namespace
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+int main(int argc, char *argv[]) {
>+  // The actual test runs in the global constructor of `before_main`.
>+  printf("PASS\n");
>+  return 0;
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e716f2b49fa1f9c823928eda9fff8500a973ba19
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/low_level_scheduling.h
>@@ -0,0 +1,104 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Core interfaces and definitions used by by low-level interfaces such as
>+// SpinLock.
>+
>+#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
>+#define ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
>+
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/macros.h"
>+
>+// The following two declarations exist so SchedulingGuard may friend them with
>+// the appropriate language linkage.  These callbacks allow libc internals, such
>+// as function level statics, to schedule cooperatively when locking.
>+extern "C" bool __google_disable_rescheduling(void);
>+extern "C" void __google_enable_rescheduling(bool disable_result);
>+
>+namespace absl {
>+namespace base_internal {
>+
>+class SchedulingHelper;  // To allow use of SchedulingGuard.
>+class SpinLock;          // To allow use of SchedulingGuard.
>+
>+// SchedulingGuard
>+// Provides guard semantics that may be used to disable cooperative rescheduling
>+// of the calling thread within specific program blocks.  This is used to
>+// protect resources (e.g. low-level SpinLocks or Domain code) that cooperative
>+// scheduling depends on.
>+//
>+// Domain implementations capable of rescheduling in reaction to involuntary
>+// kernel thread actions (e.g blocking due to a pagefault or syscall) must
>+// guarantee that an annotated thread is not allowed to (cooperatively)
>+// reschedule until the annotated region is complete.
>+//
>+// It is an error to attempt to use a cooperatively scheduled resource (e.g.
>+// Mutex) within a rescheduling-disabled region.
>+//
>+// All methods are async-signal safe.
>+class SchedulingGuard {
>+ public:
>+  // Returns true iff the calling thread may be cooperatively rescheduled.
>+  static bool ReschedulingIsAllowed();
>+
>+ private:
>+  // Disable cooperative rescheduling of the calling thread.  It may still
>+  // initiate scheduling operations (e.g. wake-ups), however, it may not itself
>+  // reschedule.  Nestable.  The returned result is opaque, clients should not
>+  // attempt to interpret it.
>+  // REQUIRES: Result must be passed to a pairing EnableScheduling().
>+  static bool DisableRescheduling();
>+
>+  // Marks the end of a rescheduling disabled region, previously started by
>+  // DisableRescheduling().
>+  // REQUIRES: Pairs with innermost call (and result) of DisableRescheduling().
>+  static void EnableRescheduling(bool disable_result);
>+
>+  // A scoped helper for {Disable, Enable}Rescheduling().
>+  // REQUIRES: destructor must run in same thread as constructor.
>+  struct ScopedDisable {
>+    ScopedDisable() { disabled = SchedulingGuard::DisableRescheduling(); }
>+    ~ScopedDisable() { SchedulingGuard::EnableRescheduling(disabled); }
>+
>+    bool disabled;
>+  };
>+
>+  // Access to SchedulingGuard is explicitly white-listed.
>+  friend class SchedulingHelper;
>+  friend class SpinLock;
>+
>+  SchedulingGuard(const SchedulingGuard&) = delete;
>+  SchedulingGuard& operator=(const SchedulingGuard&) = delete;
>+};
>+
>+//------------------------------------------------------------------------------
>+// End of public interfaces.
>+//------------------------------------------------------------------------------
>+inline bool SchedulingGuard::ReschedulingIsAllowed() {
>+  return false;
>+}
>+
>+inline bool SchedulingGuard::DisableRescheduling() {
>+  return false;
>+}
>+
>+inline void SchedulingGuard::EnableRescheduling(bool /* disable_result */) {
>+  return;
>+}
>+
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+#endif  // ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2428bdc1238edaca3da94388c09d47c089f02dd7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/per_thread_tls.h
>@@ -0,0 +1,48 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_
>+#define ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_
>+
>+// This header defines two macros:
>+// If the platform supports thread-local storage:
>+//   ABSL_PER_THREAD_TLS_KEYWORD is the C keyword needed to declare a
>+//   thread-local variable ABSL_PER_THREAD_TLS is 1
>+//
>+// Otherwise:
>+//   ABSL_PER_THREAD_TLS_KEYWORD is empty
>+//   ABSL_PER_THREAD_TLS is 0
>+//
>+// Microsoft C supports thread-local storage.
>+// GCC supports it if the appropriate version of glibc is available,
>+// which the programmer can indicate by defining ABSL_HAVE_TLS
>+
>+#include "absl/base/port.h"  // For ABSL_HAVE_TLS
>+
>+#if defined(ABSL_PER_THREAD_TLS)
>+#error ABSL_PER_THREAD_TLS cannot be directly set
>+#elif defined(ABSL_PER_THREAD_TLS_KEYWORD)
>+#error ABSL_PER_THREAD_TLS_KEYWORD cannot be directly set
>+#elif defined(ABSL_HAVE_TLS)
>+#define ABSL_PER_THREAD_TLS_KEYWORD __thread
>+#define ABSL_PER_THREAD_TLS 1
>+#elif defined(_MSC_VER)
>+#define ABSL_PER_THREAD_TLS_KEYWORD __declspec(thread)
>+#define ABSL_PER_THREAD_TLS 1
>+#else
>+#define ABSL_PER_THREAD_TLS_KEYWORD
>+#define ABSL_PER_THREAD_TLS 0
>+#endif
>+
>+#endif  // ABSL_BASE_INTERNAL_PER_THREAD_TLS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/pretty_function.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/pretty_function.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..01b0547bd08a484264b090060f96732fb02daaa1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/pretty_function.h
>@@ -0,0 +1,33 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_
>+#define ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_
>+
>+// ABSL_PRETTY_FUNCTION
>+//
>+// In C++11, __func__ gives the undecorated name of the current function.  That
>+// is, "main", not "int main()".  Various compilers give extra macros to get the
>+// decorated function name, including return type and arguments, to
>+// differentiate between overload sets.  ABSL_PRETTY_FUNCTION is a portable
>+// version of these macros which forwards to the correct macro on each compiler.
>+#if defined(_MSC_VER)
>+#define ABSL_PRETTY_FUNCTION __FUNCSIG__
>+#elif defined(__GNUC__)
>+#define ABSL_PRETTY_FUNCTION __PRETTY_FUNCTION__
>+#else
>+#error "Unsupported compiler"
>+#endif
>+
>+#endif  // ABSL_BASE_INTERNAL_PRETTY_FUNCTION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d9485a66cc649272962c3aee2997c073974ebda5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.cc
>@@ -0,0 +1,234 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+#include <stddef.h>
>+#include <cstdarg>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/atomic_hook.h"
>+#include "absl/base/log_severity.h"
>+
>+// We know how to perform low-level writes to stderr in POSIX and Windows.  For
>+// these platforms, we define the token ABSL_LOW_LEVEL_WRITE_SUPPORTED.
>+// Much of raw_logging.cc becomes a no-op when we can't output messages,
>+// although a FATAL ABSL_RAW_LOG message will still abort the process.
>+
>+// ABSL_HAVE_POSIX_WRITE is defined when the platform provides posix write()
>+// (as from unistd.h)
>+//
>+// This preprocessor token is also defined in raw_io.cc.  If you need to copy
>+// this, consider moving both to config.h instead.
>+#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
>+    defined(__Fuchsia__) || defined(__native_client__)
>+#include <unistd.h>
>+
>+
>+#define ABSL_HAVE_POSIX_WRITE 1
>+#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1
>+#else
>+#undef ABSL_HAVE_POSIX_WRITE
>+#endif
>+
>+// ABSL_HAVE_SYSCALL_WRITE is defined when the platform provides the syscall
>+//   syscall(SYS_write, /*int*/ fd, /*char* */ buf, /*size_t*/ len);
>+// for low level operations that want to avoid libc.
>+#if (defined(__linux__) || defined(__FreeBSD__)) && !defined(__ANDROID__)
>+#include <sys/syscall.h>
>+#define ABSL_HAVE_SYSCALL_WRITE 1
>+#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1
>+#else
>+#undef ABSL_HAVE_SYSCALL_WRITE
>+#endif
>+
>+#ifdef _WIN32
>+#include <io.h>
>+
>+#define ABSL_HAVE_RAW_IO 1
>+#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1
>+#else
>+#undef ABSL_HAVE_RAW_IO
>+#endif
>+
>+// TODO(gfalcon): We want raw-logging to work on as many platforms as possible.
>+// Explicitly #error out when not ABSL_LOW_LEVEL_WRITE_SUPPORTED, except for a
>+// whitelisted set of platforms for which we expect not to be able to raw log.
>+
>+ABSL_CONST_INIT static absl::base_internal::AtomicHook<
>+    absl::raw_logging_internal::LogPrefixHook> log_prefix_hook;
>+ABSL_CONST_INIT static absl::base_internal::AtomicHook<
>+    absl::raw_logging_internal::AbortHook> abort_hook;
>+
>+#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+static const char kTruncated[] = " ... (message truncated)\n";
>+
>+// sprintf the format to the buffer, adjusting *buf and *size to reflect the
>+// consumed bytes, and return whether the message fit without truncation.  If
>+// truncation occurred, if possible leave room in the buffer for the message
>+// kTruncated[].
>+inline static bool VADoRawLog(char** buf, int* size, const char* format,
>+                              va_list ap) ABSL_PRINTF_ATTRIBUTE(3, 0);
>+inline static bool VADoRawLog(char** buf, int* size,
>+                              const char* format, va_list ap) {
>+  int n = vsnprintf(*buf, *size, format, ap);
>+  bool result = true;
>+  if (n < 0 || n > *size) {
>+    result = false;
>+    if (static_cast<size_t>(*size) > sizeof(kTruncated)) {
>+      n = *size - sizeof(kTruncated);  // room for truncation message
>+    } else {
>+      n = 0;                           // no room for truncation message
>+    }
>+  }
>+  *size -= n;
>+  *buf += n;
>+  return result;
>+}
>+#endif  // ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+
>+static constexpr int kLogBufSize = 3000;
>+
>+namespace {
>+
>+// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths
>+// that invoke malloc() and getenv() that might acquire some locks.
>+
>+// Helper for RawLog below.
>+// *DoRawLog writes to *buf of *size and move them past the written portion.
>+// It returns true iff there was no overflow or error.
>+bool DoRawLog(char** buf, int* size, const char* format, ...)
>+    ABSL_PRINTF_ATTRIBUTE(3, 4);
>+bool DoRawLog(char** buf, int* size, const char* format, ...) {
>+  va_list ap;
>+  va_start(ap, format);
>+  int n = vsnprintf(*buf, *size, format, ap);
>+  va_end(ap);
>+  if (n < 0 || n > *size) return false;
>+  *size -= n;
>+  *buf += n;
>+  return true;
>+}
>+
>+void RawLogVA(absl::LogSeverity severity, const char* file, int line,
>+              const char* format, va_list ap) ABSL_PRINTF_ATTRIBUTE(4, 0);
>+void RawLogVA(absl::LogSeverity severity, const char* file, int line,
>+              const char* format, va_list ap) {
>+  char buffer[kLogBufSize];
>+  char* buf = buffer;
>+  int size = sizeof(buffer);
>+#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+  bool enabled = true;
>+#else
>+  bool enabled = false;
>+#endif
>+
>+#ifdef ABSL_MIN_LOG_LEVEL
>+  if (severity < static_cast<absl::LogSeverity>(ABSL_MIN_LOG_LEVEL) &&
>+      severity < absl::LogSeverity::kFatal) {
>+    enabled = false;
>+  }
>+#endif
>+
>+  auto log_prefix_hook_ptr = log_prefix_hook.Load();
>+  if (log_prefix_hook_ptr) {
>+    enabled = log_prefix_hook_ptr(severity, file, line, &buf, &size);
>+  } else {
>+    if (enabled) {
>+      DoRawLog(&buf, &size, "[%s : %d] RAW: ", file, line);
>+    }
>+  }
>+  const char* const prefix_end = buf;
>+
>+#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+  if (enabled) {
>+    bool no_chop = VADoRawLog(&buf, &size, format, ap);
>+    if (no_chop) {
>+      DoRawLog(&buf, &size, "\n");
>+    } else {
>+      DoRawLog(&buf, &size, "%s", kTruncated);
>+    }
>+    absl::raw_logging_internal::SafeWriteToStderr(buffer, strlen(buffer));
>+  }
>+#else
>+  static_cast<void>(format);
>+  static_cast<void>(ap);
>+#endif
>+
>+  // Abort the process after logging a FATAL message, even if the output itself
>+  // was suppressed.
>+  if (severity == absl::LogSeverity::kFatal) {
>+    abort_hook(file, line, buffer, prefix_end, buffer + kLogBufSize);
>+    abort();
>+  }
>+}
>+
>+}  // namespace
>+
>+namespace absl {
>+namespace raw_logging_internal {
>+void SafeWriteToStderr(const char *s, size_t len) {
>+#if defined(ABSL_HAVE_SYSCALL_WRITE)
>+  syscall(SYS_write, STDERR_FILENO, s, len);
>+#elif defined(ABSL_HAVE_POSIX_WRITE)
>+  write(STDERR_FILENO, s, len);
>+#elif defined(ABSL_HAVE_RAW_IO)
>+  _write(/* stderr */ 2, s, len);
>+#else
>+  // stderr logging unsupported on this platform
>+  (void) s;
>+  (void) len;
>+#endif
>+}
>+
>+void RawLog(absl::LogSeverity severity, const char* file, int line,
>+            const char* format, ...) ABSL_PRINTF_ATTRIBUTE(4, 5);
>+void RawLog(absl::LogSeverity severity, const char* file, int line,
>+            const char* format, ...) {
>+  va_list ap;
>+  va_start(ap, format);
>+  RawLogVA(severity, file, line, format, ap);
>+  va_end(ap);
>+}
>+
>+// Non-formatting version of RawLog().
>+//
>+// TODO(gfalcon): When string_view no longer depends on base, change this
>+// interface to take its message as a string_view instead.
>+static void DefaultInternalLog(absl::LogSeverity severity, const char* file,
>+                               int line, const std::string& message) {
>+  RawLog(severity, file, line, "%s", message.c_str());
>+}
>+
>+bool RawLoggingFullySupported() {
>+#ifdef ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+  return true;
>+#else  // !ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+  return false;
>+#endif  // !ABSL_LOW_LEVEL_WRITE_SUPPORTED
>+}
>+
>+ABSL_CONST_INIT absl::base_internal::AtomicHook<InternalLogFunction>
>+    internal_log_function(DefaultInternalLog);
>+
>+void RegisterInternalLogFunction(InternalLogFunction func) {
>+  internal_log_function.Store(func);
>+}
>+
>+}  // namespace raw_logging_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..67abfd30798db8fff60b284aa6c92dfe23a45bef
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/raw_logging.h
>@@ -0,0 +1,180 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Thread-safe logging routines that do not allocate any memory or
>+// acquire any locks, and can therefore be used by low-level memory
>+// allocation, synchronization, and signal-handling code.
>+
>+#ifndef ABSL_BASE_INTERNAL_RAW_LOGGING_H_
>+#define ABSL_BASE_INTERNAL_RAW_LOGGING_H_
>+
>+#include <string>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/atomic_hook.h"
>+#include "absl/base/log_severity.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+// This is similar to LOG(severity) << format..., but
>+// * it is to be used ONLY by low-level modules that can't use normal LOG()
>+// * it is designed to be a low-level logger that does not allocate any
>+//   memory and does not need any locks, hence:
>+// * it logs straight and ONLY to STDERR w/o buffering
>+// * it uses an explicit printf-format and arguments list
>+// * it will silently chop off really long message strings
>+// Usage example:
>+//   ABSL_RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
>+// This will print an almost standard log line like this to stderr only:
>+//   E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
>+#define ABSL_RAW_LOG(severity, ...)                                            \
>+  do {                                                                         \
>+    constexpr const char* absl_raw_logging_internal_basename =                 \
>+        ::absl::raw_logging_internal::Basename(__FILE__,                       \
>+                                               sizeof(__FILE__) - 1);          \
>+    ::absl::raw_logging_internal::RawLog(ABSL_RAW_LOGGING_INTERNAL_##severity, \
>+                                         absl_raw_logging_internal_basename,   \
>+                                         __LINE__, __VA_ARGS__);               \
>+  } while (0)
>+
>+// Similar to CHECK(condition) << message, but for low-level modules:
>+// we use only ABSL_RAW_LOG that does not allocate memory.
>+// We do not want to provide args list here to encourage this usage:
>+//   if (!cond)  ABSL_RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
>+// so that the args are not computed when not needed.
>+#define ABSL_RAW_CHECK(condition, message)                             \
>+  do {                                                                 \
>+    if (ABSL_PREDICT_FALSE(!(condition))) {                            \
>+      ABSL_RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
>+    }                                                                  \
>+  } while (0)
>+
>+// ABSL_INTERNAL_LOG and ABSL_INTERNAL_CHECK work like the RAW variants above,
>+// except that if the richer log library is linked into the binary, we dispatch
>+// to that instead.  This is potentially useful for internal logging and
>+// assertions, where we are using RAW_LOG neither for its async-signal-safety
>+// nor for its non-allocating nature, but rather because raw logging has very
>+// few other dependencies.
>+//
>+// The API is a subset of the above: each macro only takes two arguments.  Use
>+// StrCat if you need to build a richer message.
>+#define ABSL_INTERNAL_LOG(severity, message)                          \
>+  do {                                                                \
>+    constexpr const char* absl_raw_logging_internal_basename =        \
>+        ::absl::raw_logging_internal::Basename(__FILE__,              \
>+                                               sizeof(__FILE__) - 1); \
>+    ::absl::raw_logging_internal::internal_log_function(              \
>+        ABSL_RAW_LOGGING_INTERNAL_##severity,                         \
>+        absl_raw_logging_internal_basename, __LINE__, message);       \
>+  } while (0)
>+
>+#define ABSL_INTERNAL_CHECK(condition, message)               \
>+  do {                                                        \
>+    if (ABSL_PREDICT_FALSE(!(condition))) {                   \
>+      std::string death_message = "Check " #condition " failed: "; \
>+      death_message += std::string(message);                       \
>+      ABSL_INTERNAL_LOG(FATAL, death_message);                \
>+    }                                                         \
>+  } while (0)
>+
>+#define ABSL_RAW_LOGGING_INTERNAL_INFO ::absl::LogSeverity::kInfo
>+#define ABSL_RAW_LOGGING_INTERNAL_WARNING ::absl::LogSeverity::kWarning
>+#define ABSL_RAW_LOGGING_INTERNAL_ERROR ::absl::LogSeverity::kError
>+#define ABSL_RAW_LOGGING_INTERNAL_FATAL ::absl::LogSeverity::kFatal
>+#define ABSL_RAW_LOGGING_INTERNAL_LEVEL(severity) \
>+  ::absl::NormalizeLogSeverity(severity)
>+
>+namespace absl {
>+namespace raw_logging_internal {
>+
>+// Helper function to implement ABSL_RAW_LOG
>+// Logs format... at "severity" level, reporting it
>+// as called from file:line.
>+// This does not allocate memory or acquire locks.
>+void RawLog(absl::LogSeverity severity, const char* file, int line,
>+            const char* format, ...) ABSL_PRINTF_ATTRIBUTE(4, 5);
>+
>+// Writes the provided buffer directly to stderr, in a safe, low-level manner.
>+//
>+// In POSIX this means calling write(), which is async-signal safe and does
>+// not malloc.  If the platform supports the SYS_write syscall, we invoke that
>+// directly to side-step any libc interception.
>+void SafeWriteToStderr(const char *s, size_t len);
>+
>+// compile-time function to get the "base" filename, that is, the part of
>+// a filename after the last "/" or "\" path separator.  The search starts at
>+// the end of the std::string; the second parameter is the length of the std::string.
>+constexpr const char* Basename(const char* fname, int offset) {
>+  return offset == 0 || fname[offset - 1] == '/' || fname[offset - 1] == '\\'
>+             ? fname + offset
>+             : Basename(fname, offset - 1);
>+}
>+
>+// For testing only.
>+// Returns true if raw logging is fully supported. When it is not
>+// fully supported, no messages will be emitted, but a log at FATAL
>+// severity will cause an abort.
>+//
>+// TODO(gfalcon): Come up with a better name for this method.
>+bool RawLoggingFullySupported();
>+
>+// Function type for a raw_logging customization hook for suppressing messages
>+// by severity, and for writing custom prefixes on non-suppressed messages.
>+//
>+// The installed hook is called for every raw log invocation.  The message will
>+// be logged to stderr only if the hook returns true.  FATAL errors will cause
>+// the process to abort, even if writing to stderr is suppressed.  The hook is
>+// also provided with an output buffer, where it can write a custom log message
>+// prefix.
>+//
>+// The raw_logging system does not allocate memory or grab locks.  User-provided
>+// hooks must avoid these operations, and must not throw exceptions.
>+//
>+// 'severity' is the severity level of the message being written.
>+// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro
>+// was located.
>+// 'buffer' and 'buf_size' are pointers to the buffer and buffer size.  If the
>+// hook writes a prefix, it must increment *buffer and decrement *buf_size
>+// accordingly.
>+using LogPrefixHook = bool (*)(absl::LogSeverity severity, const char* file,
>+                               int line, char** buffer, int* buf_size);
>+
>+// Function type for a raw_logging customization hook called to abort a process
>+// when a FATAL message is logged.  If the provided AbortHook() returns, the
>+// logging system will call abort().
>+//
>+// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro
>+// was located.
>+// The null-terminated logged message lives in the buffer between 'buf_start'
>+// and 'buf_end'.  'prefix_end' points to the first non-prefix character of the
>+// buffer (as written by the LogPrefixHook.)
>+using AbortHook = void (*)(const char* file, int line, const char* buf_start,
>+                           const char* prefix_end, const char* buf_end);
>+
>+// Internal logging function for ABSL_INTERNAL_LOG to dispatch to.
>+//
>+// TODO(gfalcon): When string_view no longer depends on base, change this
>+// interface to take its message as a string_view instead.
>+using InternalLogFunction = void (*)(absl::LogSeverity severity,
>+                                     const char* file, int line,
>+                                     const std::string& message);
>+
>+extern base_internal::AtomicHook<InternalLogFunction> internal_log_function;
>+
>+void RegisterInternalLogFunction(InternalLogFunction func);
>+
>+}  // namespace raw_logging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_RAW_LOGGING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..1b6497ad8757dece8dbcf488e4f918afc5836e04
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/scheduling_mode.h
>@@ -0,0 +1,54 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Core interfaces and definitions used by by low-level interfaces such as
>+// SpinLock.
>+
>+#ifndef ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
>+#define ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// Used to describe how a thread may be scheduled.  Typically associated with
>+// the declaration of a resource supporting synchronized access.
>+//
>+// SCHEDULE_COOPERATIVE_AND_KERNEL:
>+// Specifies that when waiting, a cooperative thread (e.g. a Fiber) may
>+// reschedule (using base::scheduling semantics); allowing other cooperative
>+// threads to proceed.
>+//
>+// SCHEDULE_KERNEL_ONLY: (Also described as "non-cooperative")
>+// Specifies that no cooperative scheduling semantics may be used, even if the
>+// current thread is itself cooperatively scheduled.  This means that
>+// cooperative threads will NOT allow other cooperative threads to execute in
>+// their place while waiting for a resource of this type.  Host operating system
>+// semantics (e.g. a futex) may still be used.
>+//
>+// When optional, clients should strongly prefer SCHEDULE_COOPERATIVE_AND_KERNEL
>+// by default.  SCHEDULE_KERNEL_ONLY should only be used for resources on which
>+// base::scheduling (e.g. the implementation of a Scheduler) may depend.
>+//
>+// NOTE: Cooperative resources may not be nested below non-cooperative ones.
>+// This means that it is invalid to to acquire a SCHEDULE_COOPERATIVE_AND_KERNEL
>+// resource if a SCHEDULE_KERNEL_ONLY resource is already held.
>+enum SchedulingMode {
>+  SCHEDULE_KERNEL_ONLY = 0,         // Allow scheduling only the host OS.
>+  SCHEDULE_COOPERATIVE_AND_KERNEL,  // Also allow cooperative scheduling.
>+};
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1b97efbccc5870600f3abb8c47d9cc372ebab6ac
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.cc
>@@ -0,0 +1,228 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/spinlock.h"
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <limits>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/atomic_hook.h"
>+#include "absl/base/internal/cycleclock.h"
>+#include "absl/base/internal/spinlock_wait.h"
>+#include "absl/base/internal/sysinfo.h" /* For NumCPUs() */
>+#include "absl/base/call_once.h"
>+
>+// Description of lock-word:
>+//  31..00: [............................3][2][1][0]
>+//
>+//     [0]: kSpinLockHeld
>+//     [1]: kSpinLockCooperative
>+//     [2]: kSpinLockDisabledScheduling
>+// [31..3]: ONLY kSpinLockSleeper OR
>+//          Wait time in cycles >> PROFILE_TIMESTAMP_SHIFT
>+//
>+// Detailed descriptions:
>+//
>+// Bit [0]: The lock is considered held iff kSpinLockHeld is set.
>+//
>+// Bit [1]: Eligible waiters (e.g. Fibers) may co-operatively reschedule when
>+//          contended iff kSpinLockCooperative is set.
>+//
>+// Bit [2]: This bit is exclusive from bit [1].  It is used only by a
>+//          non-cooperative lock.  When set, indicates that scheduling was
>+//          successfully disabled when the lock was acquired.  May be unset,
>+//          even if non-cooperative, if a ThreadIdentity did not yet exist at
>+//          time of acquisition.
>+//
>+// Bit [3]: If this is the only upper bit ([31..3]) set then this lock was
>+//          acquired without contention, however, at least one waiter exists.
>+//
>+//          Otherwise, bits [31..3] represent the time spent by the current lock
>+//          holder to acquire the lock.  There may be outstanding waiter(s).
>+
>+namespace absl {
>+namespace base_internal {
>+
>+ABSL_CONST_INIT static base_internal::AtomicHook<void (*)(const void *lock,
>+                                                          int64_t wait_cycles)>
>+    submit_profile_data;
>+
>+void RegisterSpinLockProfiler(void (*fn)(const void *contendedlock,
>+                                         int64_t wait_cycles)) {
>+  submit_profile_data.Store(fn);
>+}
>+
>+// Uncommon constructors.
>+SpinLock::SpinLock(base_internal::SchedulingMode mode)
>+    : lockword_(IsCooperative(mode) ? kSpinLockCooperative : 0) {
>+  ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static);
>+}
>+
>+SpinLock::SpinLock(base_internal::LinkerInitialized,
>+                   base_internal::SchedulingMode mode) {
>+  ABSL_TSAN_MUTEX_CREATE(this, 0);
>+  if (IsCooperative(mode)) {
>+    InitLinkerInitializedAndCooperative();
>+  }
>+  // Otherwise, lockword_ is already initialized.
>+}
>+
>+// Static (linker initialized) spinlocks always start life as functional
>+// non-cooperative locks.  When their static constructor does run, it will call
>+// this initializer to augment the lockword with the cooperative bit.  By
>+// actually taking the lock when we do this we avoid the need for an atomic
>+// operation in the regular unlock path.
>+//
>+// SlowLock() must be careful to re-test for this bit so that any outstanding
>+// waiters may be upgraded to cooperative status.
>+void SpinLock::InitLinkerInitializedAndCooperative() {
>+  Lock();
>+  lockword_.fetch_or(kSpinLockCooperative, std::memory_order_relaxed);
>+  Unlock();
>+}
>+
>+// Monitor the lock to see if its value changes within some time period
>+// (adaptive_spin_count loop iterations).  A timestamp indicating
>+// when the thread initially started waiting for the lock is passed in via
>+// the initial_wait_timestamp value.  The total wait time in cycles for the
>+// lock is returned in the wait_cycles parameter.  The last value read
>+// from the lock is returned from the method.
>+uint32_t SpinLock::SpinLoop(int64_t initial_wait_timestamp,
>+                            uint32_t *wait_cycles) {
>+  // We are already in the slow path of SpinLock, initialize the
>+  // adaptive_spin_count here.
>+  ABSL_CONST_INIT static absl::once_flag init_adaptive_spin_count;
>+  ABSL_CONST_INIT static int adaptive_spin_count = 0;
>+  base_internal::LowLevelCallOnce(&init_adaptive_spin_count, []() {
>+    adaptive_spin_count = base_internal::NumCPUs() > 1 ? 1000 : 1;
>+  });
>+
>+  int c = adaptive_spin_count;
>+  uint32_t lock_value;
>+  do {
>+    lock_value = lockword_.load(std::memory_order_relaxed);
>+  } while ((lock_value & kSpinLockHeld) != 0 && --c > 0);
>+  uint32_t spin_loop_wait_cycles =
>+      EncodeWaitCycles(initial_wait_timestamp, CycleClock::Now());
>+  *wait_cycles = spin_loop_wait_cycles;
>+
>+  return TryLockInternal(lock_value, spin_loop_wait_cycles);
>+}
>+
>+void SpinLock::SlowLock() {
>+  // The lock was not obtained initially, so this thread needs to wait for
>+  // it.  Record the current timestamp in the local variable wait_start_time
>+  // so the total wait time can be stored in the lockword once this thread
>+  // obtains the lock.
>+  int64_t wait_start_time = CycleClock::Now();
>+  uint32_t wait_cycles;
>+  uint32_t lock_value = SpinLoop(wait_start_time, &wait_cycles);
>+
>+  int lock_wait_call_count = 0;
>+  while ((lock_value & kSpinLockHeld) != 0) {
>+    // If the lock is currently held, but not marked as having a sleeper, mark
>+    // it as having a sleeper.
>+    if ((lock_value & kWaitTimeMask) == 0) {
>+      // Here, just "mark" that the thread is going to sleep.  Don't store the
>+      // lock wait time in the lock as that will cause the current lock
>+      // owner to think it experienced contention.
>+      if (lockword_.compare_exchange_strong(
>+              lock_value, lock_value | kSpinLockSleeper,
>+              std::memory_order_acquire, std::memory_order_relaxed)) {
>+        // Successfully transitioned to kSpinLockSleeper.  Pass
>+        // kSpinLockSleeper to the SpinLockWait routine to properly indicate
>+        // the last lock_value observed.
>+        lock_value |= kSpinLockSleeper;
>+      } else if ((lock_value & kSpinLockHeld) == 0) {
>+        // Lock is free again, so try and acquire it before sleeping.  The
>+        // new lock state will be the number of cycles this thread waited if
>+        // this thread obtains the lock.
>+        lock_value = TryLockInternal(lock_value, wait_cycles);
>+        continue;   // Skip the delay at the end of the loop.
>+      }
>+    }
>+
>+    base_internal::SchedulingMode scheduling_mode;
>+    if ((lock_value & kSpinLockCooperative) != 0) {
>+      scheduling_mode = base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL;
>+    } else {
>+      scheduling_mode = base_internal::SCHEDULE_KERNEL_ONLY;
>+    }
>+    // SpinLockDelay() calls into fiber scheduler, we need to see
>+    // synchronization there to avoid false positives.
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(this, 0);
>+    // Wait for an OS specific delay.
>+    base_internal::SpinLockDelay(&lockword_, lock_value, ++lock_wait_call_count,
>+                                 scheduling_mode);
>+    ABSL_TSAN_MUTEX_POST_DIVERT(this, 0);
>+    // Spin again after returning from the wait routine to give this thread
>+    // some chance of obtaining the lock.
>+    lock_value = SpinLoop(wait_start_time, &wait_cycles);
>+  }
>+}
>+
>+void SpinLock::SlowUnlock(uint32_t lock_value) {
>+  base_internal::SpinLockWake(&lockword_,
>+                              false);  // wake waiter if necessary
>+
>+  // If our acquisition was contended, collect contentionz profile info.  We
>+  // reserve a unitary wait time to represent that a waiter exists without our
>+  // own acquisition having been contended.
>+  if ((lock_value & kWaitTimeMask) != kSpinLockSleeper) {
>+    const uint64_t wait_cycles = DecodeWaitCycles(lock_value);
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(this, 0);
>+    submit_profile_data(this, wait_cycles);
>+    ABSL_TSAN_MUTEX_POST_DIVERT(this, 0);
>+  }
>+}
>+
>+// We use the upper 29 bits of the lock word to store the time spent waiting to
>+// acquire this lock.  This is reported by contentionz profiling.  Since the
>+// lower bits of the cycle counter wrap very quickly on high-frequency
>+// processors we divide to reduce the granularity to 2^PROFILE_TIMESTAMP_SHIFT
>+// sized units.  On a 4Ghz machine this will lose track of wait times greater
>+// than (2^29/4 Ghz)*128 =~ 17.2 seconds.  Such waits should be extremely rare.
>+enum { PROFILE_TIMESTAMP_SHIFT = 7 };
>+enum { LOCKWORD_RESERVED_SHIFT = 3 };  // We currently reserve the lower 3 bits.
>+
>+uint32_t SpinLock::EncodeWaitCycles(int64_t wait_start_time,
>+                                    int64_t wait_end_time) {
>+  static const int64_t kMaxWaitTime =
>+      std::numeric_limits<uint32_t>::max() >> LOCKWORD_RESERVED_SHIFT;
>+  int64_t scaled_wait_time =
>+      (wait_end_time - wait_start_time) >> PROFILE_TIMESTAMP_SHIFT;
>+
>+  // Return a representation of the time spent waiting that can be stored in
>+  // the lock word's upper bits.  bit_cast is required as Atomic32 is signed.
>+  const uint32_t clamped = static_cast<uint32_t>(
>+      std::min(scaled_wait_time, kMaxWaitTime) << LOCKWORD_RESERVED_SHIFT);
>+
>+  // bump up value if necessary to avoid returning kSpinLockSleeper.
>+  const uint32_t after_spinlock_sleeper =
>+     kSpinLockSleeper + (1 << LOCKWORD_RESERVED_SHIFT);
>+  return clamped == kSpinLockSleeper ? after_spinlock_sleeper : clamped;
>+}
>+
>+uint64_t SpinLock::DecodeWaitCycles(uint32_t lock_value) {
>+  // Cast to uint32_t first to ensure bits [63:32] are cleared.
>+  const uint64_t scaled_wait_time =
>+      static_cast<uint32_t>(lock_value & kWaitTimeMask);
>+  return scaled_wait_time
>+      << (PROFILE_TIMESTAMP_SHIFT - LOCKWORD_RESERVED_SHIFT);
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..212abc669e627363f8a0224ccb77918a69d31194
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock.h
>@@ -0,0 +1,239 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+//  Most users requiring mutual exclusion should use Mutex.
>+//  SpinLock is provided for use in three situations:
>+//   - for use in code that Mutex itself depends on
>+//   - to get a faster fast-path release under low contention (without an
>+//     atomic read-modify-write) In return, SpinLock has worse behaviour under
>+//     contention, which is why Mutex is preferred in most situations.
>+//   - for async signal safety (see below)
>+
>+// SpinLock is async signal safe.  If a spinlock is used within a signal
>+// handler, all code that acquires the lock must ensure that the signal cannot
>+// arrive while they are holding the lock.  Typically, this is done by blocking
>+// the signal.
>+
>+#ifndef ABSL_BASE_INTERNAL_SPINLOCK_H_
>+#define ABSL_BASE_INTERNAL_SPINLOCK_H_
>+
>+#include <stdint.h>
>+#include <sys/types.h>
>+#include <atomic>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/low_level_scheduling.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/internal/tsan_mutex_interface.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/base/thread_annotations.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+class LOCKABLE SpinLock {
>+ public:
>+  SpinLock() : lockword_(kSpinLockCooperative) {
>+    ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static);
>+  }
>+
>+  // Special constructor for use with static SpinLock objects.  E.g.,
>+  //
>+  //    static SpinLock lock(base_internal::kLinkerInitialized);
>+  //
>+  // When intialized using this constructor, we depend on the fact
>+  // that the linker has already initialized the memory appropriately.
>+  // A SpinLock constructed like this can be freely used from global
>+  // initializers without worrying about the order in which global
>+  // initializers run.
>+  explicit SpinLock(base_internal::LinkerInitialized) {
>+    // Does nothing; lockword_ is already initialized
>+    ABSL_TSAN_MUTEX_CREATE(this, 0);
>+  }
>+
>+  // Constructors that allow non-cooperative spinlocks to be created for use
>+  // inside thread schedulers.  Normal clients should not use these.
>+  explicit SpinLock(base_internal::SchedulingMode mode);
>+  SpinLock(base_internal::LinkerInitialized,
>+           base_internal::SchedulingMode mode);
>+
>+  ~SpinLock() { ABSL_TSAN_MUTEX_DESTROY(this, __tsan_mutex_not_static); }
>+
>+  // Acquire this SpinLock.
>+  inline void Lock() EXCLUSIVE_LOCK_FUNCTION() {
>+    ABSL_TSAN_MUTEX_PRE_LOCK(this, 0);
>+    if (!TryLockImpl()) {
>+      SlowLock();
>+    }
>+    ABSL_TSAN_MUTEX_POST_LOCK(this, 0, 0);
>+  }
>+
>+  // Try to acquire this SpinLock without blocking and return true if the
>+  // acquisition was successful.  If the lock was not acquired, false is
>+  // returned.  If this SpinLock is free at the time of the call, TryLock
>+  // will return true with high probability.
>+  inline bool TryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true) {
>+    ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_try_lock);
>+    bool res = TryLockImpl();
>+    ABSL_TSAN_MUTEX_POST_LOCK(
>+        this, __tsan_mutex_try_lock | (res ? 0 : __tsan_mutex_try_lock_failed),
>+        0);
>+    return res;
>+  }
>+
>+  // Release this SpinLock, which must be held by the calling thread.
>+  inline void Unlock() UNLOCK_FUNCTION() {
>+    ABSL_TSAN_MUTEX_PRE_UNLOCK(this, 0);
>+    uint32_t lock_value = lockword_.load(std::memory_order_relaxed);
>+    lockword_.store(lock_value & kSpinLockCooperative,
>+                    std::memory_order_release);
>+
>+    if ((lock_value & kSpinLockDisabledScheduling) != 0) {
>+      base_internal::SchedulingGuard::EnableRescheduling(true);
>+    }
>+    if ((lock_value & kWaitTimeMask) != 0) {
>+      // Collect contentionz profile info, and speed the wakeup of any waiter.
>+      // The wait_cycles value indicates how long this thread spent waiting
>+      // for the lock.
>+      SlowUnlock(lock_value);
>+    }
>+    ABSL_TSAN_MUTEX_POST_UNLOCK(this, 0);
>+  }
>+
>+  // Determine if the lock is held.  When the lock is held by the invoking
>+  // thread, true will always be returned. Intended to be used as
>+  // CHECK(lock.IsHeld()).
>+  inline bool IsHeld() const {
>+    return (lockword_.load(std::memory_order_relaxed) & kSpinLockHeld) != 0;
>+  }
>+
>+ protected:
>+  // These should not be exported except for testing.
>+
>+  // Store number of cycles between wait_start_time and wait_end_time in a
>+  // lock value.
>+  static uint32_t EncodeWaitCycles(int64_t wait_start_time,
>+                                   int64_t wait_end_time);
>+
>+  // Extract number of wait cycles in a lock value.
>+  static uint64_t DecodeWaitCycles(uint32_t lock_value);
>+
>+  // Provide access to protected method above.  Use for testing only.
>+  friend struct SpinLockTest;
>+
>+ private:
>+  // lockword_ is used to store the following:
>+  //
>+  // bit[0] encodes whether a lock is being held.
>+  // bit[1] encodes whether a lock uses cooperative scheduling.
>+  // bit[2] encodes whether a lock disables scheduling.
>+  // bit[3:31] encodes time a lock spent on waiting as a 29-bit unsigned int.
>+  enum { kSpinLockHeld = 1 };
>+  enum { kSpinLockCooperative = 2 };
>+  enum { kSpinLockDisabledScheduling = 4 };
>+  enum { kSpinLockSleeper = 8 };
>+  enum { kWaitTimeMask =                      // Includes kSpinLockSleeper.
>+    ~(kSpinLockHeld | kSpinLockCooperative | kSpinLockDisabledScheduling) };
>+
>+  // Returns true if the provided scheduling mode is cooperative.
>+  static constexpr bool IsCooperative(
>+      base_internal::SchedulingMode scheduling_mode) {
>+    return scheduling_mode == base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL;
>+  }
>+
>+  uint32_t TryLockInternal(uint32_t lock_value, uint32_t wait_cycles);
>+  void InitLinkerInitializedAndCooperative();
>+  void SlowLock() ABSL_ATTRIBUTE_COLD;
>+  void SlowUnlock(uint32_t lock_value) ABSL_ATTRIBUTE_COLD;
>+  uint32_t SpinLoop(int64_t initial_wait_timestamp, uint32_t* wait_cycles);
>+
>+  inline bool TryLockImpl() {
>+    uint32_t lock_value = lockword_.load(std::memory_order_relaxed);
>+    return (TryLockInternal(lock_value, 0) & kSpinLockHeld) == 0;
>+  }
>+
>+  std::atomic<uint32_t> lockword_;
>+
>+  SpinLock(const SpinLock&) = delete;
>+  SpinLock& operator=(const SpinLock&) = delete;
>+};
>+
>+// Corresponding locker object that arranges to acquire a spinlock for
>+// the duration of a C++ scope.
>+class SCOPED_LOCKABLE SpinLockHolder {
>+ public:
>+  inline explicit SpinLockHolder(SpinLock* l) EXCLUSIVE_LOCK_FUNCTION(l)
>+      : lock_(l) {
>+    l->Lock();
>+  }
>+  inline ~SpinLockHolder() UNLOCK_FUNCTION() { lock_->Unlock(); }
>+
>+  SpinLockHolder(const SpinLockHolder&) = delete;
>+  SpinLockHolder& operator=(const SpinLockHolder&) = delete;
>+
>+ private:
>+  SpinLock* lock_;
>+};
>+
>+// Register a hook for profiling support.
>+//
>+// The function pointer registered here will be called whenever a spinlock is
>+// contended.  The callback is given an opaque handle to the contended spinlock
>+// and the number of wait cycles.  This is thread-safe, but only a single
>+// profiler can be registered.  It is an error to call this function multiple
>+// times with different arguments.
>+void RegisterSpinLockProfiler(void (*fn)(const void* lock,
>+                                         int64_t wait_cycles));
>+
>+//------------------------------------------------------------------------------
>+// Public interface ends here.
>+//------------------------------------------------------------------------------
>+
>+// If (result & kSpinLockHeld) == 0, then *this was successfully locked.
>+// Otherwise, returns last observed value for lockword_.
>+inline uint32_t SpinLock::TryLockInternal(uint32_t lock_value,
>+                                          uint32_t wait_cycles) {
>+  if ((lock_value & kSpinLockHeld) != 0) {
>+    return lock_value;
>+  }
>+
>+  uint32_t sched_disabled_bit = 0;
>+  if ((lock_value & kSpinLockCooperative) == 0) {
>+    // For non-cooperative locks we must make sure we mark ourselves as
>+    // non-reschedulable before we attempt to CompareAndSwap.
>+    if (base_internal::SchedulingGuard::DisableRescheduling()) {
>+      sched_disabled_bit = kSpinLockDisabledScheduling;
>+    }
>+  }
>+
>+  if (lockword_.compare_exchange_strong(
>+          lock_value,
>+          kSpinLockHeld | lock_value | wait_cycles | sched_disabled_bit,
>+          std::memory_order_acquire, std::memory_order_relaxed)) {
>+  } else {
>+    base_internal::SchedulingGuard::EnableRescheduling(sched_disabled_bit != 0);
>+  }
>+
>+  return lock_value;
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_SPINLOCK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..051c8cf87fb6ffb280dcd8bf287b7588091dee30
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_akaros.inc
>@@ -0,0 +1,35 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file is an Akaros-specific part of spinlock_wait.cc
>+
>+#include <atomic>
>+
>+#include "absl/base/internal/scheduling_mode.h"
>+
>+extern "C" {
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
>+    std::atomic<uint32_t>* /* lock_word */, uint32_t /* value */,
>+    int /* loop */, absl::base_internal::SchedulingMode /* mode */) {
>+  // In Akaros, one must take care not to call anything that could cause a
>+  // malloc(), a blocking system call, or a uthread_yield() while holding a
>+  // spinlock. Our callers assume will not call into libraries or other
>+  // arbitrary code.
>+}
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockWake(
>+    std::atomic<uint32_t>* /* lock_word */, bool /* all */) {}
>+
>+}  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0098c1c76016f18538fa6ec82f357c05b4f84934
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_posix.inc
>@@ -0,0 +1,46 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file is a Posix-specific part of spinlock_wait.cc
>+
>+#include <sched.h>
>+#include <atomic>
>+#include <ctime>
>+#include <cerrno>
>+
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/port.h"
>+
>+extern "C" {
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
>+    std::atomic<uint32_t>* /* lock_word */, uint32_t /* value */, int loop,
>+    absl::base_internal::SchedulingMode /* mode */) {
>+  int save_errno = errno;
>+  if (loop == 0) {
>+  } else if (loop == 1) {
>+    sched_yield();
>+  } else {
>+    struct timespec tm;
>+    tm.tv_sec = 0;
>+    tm.tv_nsec = absl::base_internal::SpinLockSuggestedDelayNS(loop);
>+    nanosleep(&tm, nullptr);
>+  }
>+  errno = save_errno;
>+}
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockWake(
>+    std::atomic<uint32_t>* /* lock_word */, bool /* all */) {}
>+
>+}  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9f6e9911e1096b2f187cc6a8430544e9fc166333
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc
>@@ -0,0 +1,79 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// The OS-specific header included below must provide two calls:
>+// base::subtle::SpinLockDelay() and base::subtle::SpinLockWake().
>+// See spinlock_wait.h for the specs.
>+
>+#include <atomic>
>+#include <cstdint>
>+
>+#include "absl/base/internal/spinlock_wait.h"
>+
>+#if defined(_WIN32)
>+#include "absl/base/internal/spinlock_win32.inc"
>+#elif defined(__akaros__)
>+#include "absl/base/internal/spinlock_akaros.inc"
>+#else
>+#include "absl/base/internal/spinlock_posix.inc"
>+#endif
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// See spinlock_wait.h for spec.
>+uint32_t SpinLockWait(std::atomic<uint32_t> *w, int n,
>+                      const SpinLockWaitTransition trans[],
>+                      base_internal::SchedulingMode scheduling_mode) {
>+  for (int loop = 0; ; loop++) {
>+    uint32_t v = w->load(std::memory_order_acquire);
>+    int i;
>+    for (i = 0; i != n && v != trans[i].from; i++) {
>+    }
>+    if (i == n) {
>+      SpinLockDelay(w, v, loop, scheduling_mode);  // no matching transition
>+    } else if (trans[i].to == v ||                 // null transition
>+               w->compare_exchange_strong(v, trans[i].to,
>+                                          std::memory_order_acquire,
>+                                          std::memory_order_relaxed)) {
>+      if (trans[i].done) return v;
>+    }
>+  }
>+}
>+
>+static std::atomic<uint64_t> delay_rand;
>+
>+// Return a suggested delay in nanoseconds for iteration number "loop"
>+int SpinLockSuggestedDelayNS(int loop) {
>+  // Weak pseudo-random number generator to get some spread between threads
>+  // when many are spinning.
>+  uint64_t r = delay_rand.load(std::memory_order_relaxed);
>+  r = 0x5deece66dLL * r + 0xb;   // numbers from nrand48()
>+  delay_rand.store(r, std::memory_order_relaxed);
>+
>+  r <<= 16;   // 48-bit random number now in top 48-bits.
>+  if (loop < 0 || loop > 32) {   // limit loop to 0..32
>+    loop = 32;
>+  }
>+  // loop>>3 cannot exceed 4 because loop cannot exceed 32.
>+  // Select top 20..24 bits of lower 48 bits,
>+  // giving approximately 0ms to 16ms.
>+  // Mean is exponential in loop for first 32 iterations, then 8ms.
>+  // The futex path multiplies this by 16, since we expect explicit wakeups
>+  // almost always on that path.
>+  return static_cast<int>(r >> (44 - (loop >> 3)));
>+}
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c6cc7fdba4cc3f3b72f50b4c50de9f19a72085d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_wait.h
>@@ -0,0 +1,91 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_
>+#define ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_
>+
>+// Operations to make atomic transitions on a word, and to allow
>+// waiting for those transitions to become possible.
>+
>+#include <stdint.h>
>+#include <atomic>
>+
>+#include "absl/base/internal/scheduling_mode.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// SpinLockWait() waits until it can perform one of several transitions from
>+// "from" to "to".  It returns when it performs a transition where done==true.
>+struct SpinLockWaitTransition {
>+  uint32_t from;
>+  uint32_t to;
>+  bool done;
>+};
>+
>+// Wait until *w can transition from trans[i].from to trans[i].to for some i
>+// satisfying 0<=i<n && trans[i].done, atomically make the transition,
>+// then return the old value of *w.   Make any other atomic transitions
>+// where !trans[i].done, but continue waiting.
>+uint32_t SpinLockWait(std::atomic<uint32_t> *w, int n,
>+                      const SpinLockWaitTransition trans[],
>+                      SchedulingMode scheduling_mode);
>+
>+// If possible, wake some thread that has called SpinLockDelay(w, ...). If
>+// "all" is true, wake all such threads.  This call is a hint, and on some
>+// systems it may be a no-op; threads calling SpinLockDelay() will always wake
>+// eventually even if SpinLockWake() is never called.
>+void SpinLockWake(std::atomic<uint32_t> *w, bool all);
>+
>+// Wait for an appropriate spin delay on iteration "loop" of a
>+// spin loop on location *w, whose previously observed value was "value".
>+// SpinLockDelay() may do nothing, may yield the CPU, may sleep a clock tick,
>+// or may wait for a delay that can be truncated by a call to SpinLockWake(w).
>+// In all cases, it must return in bounded time even if SpinLockWake() is not
>+// called.
>+void SpinLockDelay(std::atomic<uint32_t> *w, uint32_t value, int loop,
>+                   base_internal::SchedulingMode scheduling_mode);
>+
>+// Helper used by AbslInternalSpinLockDelay.
>+// Returns a suggested delay in nanoseconds for iteration number "loop".
>+int SpinLockSuggestedDelayNS(int loop);
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+// In some build configurations we pass --detect-odr-violations to the
>+// gold linker.  This causes it to flag weak symbol overrides as ODR
>+// violations.  Because ODR only applies to C++ and not C,
>+// --detect-odr-violations ignores symbols not mangled with C++ names.
>+// By changing our extension points to be extern "C", we dodge this
>+// check.
>+extern "C" {
>+void AbslInternalSpinLockWake(std::atomic<uint32_t> *w, bool all);
>+void AbslInternalSpinLockDelay(
>+    std::atomic<uint32_t> *w, uint32_t value, int loop,
>+    absl::base_internal::SchedulingMode scheduling_mode);
>+}
>+
>+inline void absl::base_internal::SpinLockWake(std::atomic<uint32_t> *w,
>+                                              bool all) {
>+  AbslInternalSpinLockWake(w, all);
>+}
>+
>+inline void absl::base_internal::SpinLockDelay(
>+    std::atomic<uint32_t> *w, uint32_t value, int loop,
>+    absl::base_internal::SchedulingMode scheduling_mode) {
>+  AbslInternalSpinLockDelay(w, value, loop, scheduling_mode);
>+}
>+
>+#endif  // ABSL_BASE_INTERNAL_SPINLOCK_WAIT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..32c8fc0bb51d9bdc7e95fcc3f9cddeff0495f024
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/spinlock_win32.inc
>@@ -0,0 +1,37 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file is a Win32-specific part of spinlock_wait.cc
>+
>+#include <windows.h>
>+#include <atomic>
>+#include "absl/base/internal/scheduling_mode.h"
>+
>+extern "C" {
>+
>+void AbslInternalSpinLockDelay(std::atomic<uint32_t>* /* lock_word */,
>+                               uint32_t /* value */, int loop,
>+                               absl::base_internal::SchedulingMode /* mode */) {
>+  if (loop == 0) {
>+  } else if (loop == 1) {
>+    Sleep(0);
>+  } else {
>+    Sleep(absl::base_internal::SpinLockSuggestedDelayNS(loop) / 1000000);
>+  }
>+}
>+
>+void AbslInternalSpinLockWake(std::atomic<uint32_t>* /* lock_word */,
>+                              bool /* all */) {}
>+
>+}  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..db41bacc844c63491a80a4071451df740f09f647
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.cc
>@@ -0,0 +1,404 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/sysinfo.h"
>+
>+#include "absl/base/attributes.h"
>+
>+#ifdef _WIN32
>+#include <shlwapi.h>
>+#include <windows.h>
>+#else
>+#include <fcntl.h>
>+#include <pthread.h>
>+#include <sys/stat.h>
>+#include <sys/types.h>
>+#include <unistd.h>
>+#endif
>+
>+#ifdef __linux__
>+#include <sys/syscall.h>
>+#endif
>+
>+#if defined(__APPLE__) || defined(__FreeBSD__)
>+#include <sys/sysctl.h>
>+#endif
>+
>+#if defined(__myriad2__)
>+#include <rtems.h>
>+#endif
>+
>+#include <string.h>
>+#include <cassert>
>+#include <cstdint>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <ctime>
>+#include <limits>
>+#include <thread>  // NOLINT(build/c++11)
>+#include <utility>
>+#include <vector>
>+
>+#include "absl/base/call_once.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/internal/unscaledcycleclock.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+static once_flag init_system_info_once;
>+static int num_cpus = 0;
>+static double nominal_cpu_frequency = 1.0;  // 0.0 might be dangerous.
>+
>+static int GetNumCPUs() {
>+#if defined(__myriad2__)
>+  return 1;
>+#else
>+  // Other possibilities:
>+  //  - Read /sys/devices/system/cpu/online and use cpumask_parse()
>+  //  - sysconf(_SC_NPROCESSORS_ONLN)
>+  return std::thread::hardware_concurrency();
>+#endif
>+}
>+
>+#if defined(_WIN32)
>+
>+static double GetNominalCPUFrequency() {
>+  DWORD data;
>+  DWORD data_size = sizeof(data);
>+  #pragma comment(lib, "shlwapi.lib")  // For SHGetValue().
>+  if (SUCCEEDED(
>+          SHGetValueA(HKEY_LOCAL_MACHINE,
>+                      "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0",
>+                      "~MHz", nullptr, &data, &data_size))) {
>+    return data * 1e6;  // Value is MHz.
>+  }
>+  return 1.0;
>+}
>+
>+#elif defined(CTL_HW) && defined(HW_CPU_FREQ)
>+
>+static double GetNominalCPUFrequency() {
>+  unsigned freq;
>+  size_t size = sizeof(freq);
>+  int mib[2] = {CTL_HW, HW_CPU_FREQ};
>+  if (sysctl(mib, 2, &freq, &size, nullptr, 0) == 0) {
>+    return static_cast<double>(freq);
>+  }
>+  return 1.0;
>+}
>+
>+#else
>+
>+// Helper function for reading a long from a file. Returns true if successful
>+// and the memory location pointed to by value is set to the value read.
>+static bool ReadLongFromFile(const char *file, long *value) {
>+  bool ret = false;
>+  int fd = open(file, O_RDONLY);
>+  if (fd != -1) {
>+    char line[1024];
>+    char *err;
>+    memset(line, '\0', sizeof(line));
>+    int len = read(fd, line, sizeof(line) - 1);
>+    if (len <= 0) {
>+      ret = false;
>+    } else {
>+      const long temp_value = strtol(line, &err, 10);
>+      if (line[0] != '\0' && (*err == '\n' || *err == '\0')) {
>+        *value = temp_value;
>+        ret = true;
>+      }
>+    }
>+    close(fd);
>+  }
>+  return ret;
>+}
>+
>+#if defined(ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY)
>+
>+// Reads a monotonic time source and returns a value in
>+// nanoseconds. The returned value uses an arbitrary epoch, not the
>+// Unix epoch.
>+static int64_t ReadMonotonicClockNanos() {
>+  struct timespec t;
>+#ifdef CLOCK_MONOTONIC_RAW
>+  int rc = clock_gettime(CLOCK_MONOTONIC_RAW, &t);
>+#else
>+  int rc = clock_gettime(CLOCK_MONOTONIC, &t);
>+#endif
>+  if (rc != 0) {
>+    perror("clock_gettime() failed");
>+    abort();
>+  }
>+  return int64_t{t.tv_sec} * 1000000000 + t.tv_nsec;
>+}
>+
>+class UnscaledCycleClockWrapperForInitializeFrequency {
>+ public:
>+  static int64_t Now() { return base_internal::UnscaledCycleClock::Now(); }
>+};
>+
>+struct TimeTscPair {
>+  int64_t time;  // From ReadMonotonicClockNanos().
>+  int64_t tsc;   // From UnscaledCycleClock::Now().
>+};
>+
>+// Returns a pair of values (monotonic kernel time, TSC ticks) that
>+// approximately correspond to each other.  This is accomplished by
>+// doing several reads and picking the reading with the lowest
>+// latency.  This approach is used to minimize the probability that
>+// our thread was preempted between clock reads.
>+static TimeTscPair GetTimeTscPair() {
>+  int64_t best_latency = std::numeric_limits<int64_t>::max();
>+  TimeTscPair best;
>+  for (int i = 0; i < 10; ++i) {
>+    int64_t t0 = ReadMonotonicClockNanos();
>+    int64_t tsc = UnscaledCycleClockWrapperForInitializeFrequency::Now();
>+    int64_t t1 = ReadMonotonicClockNanos();
>+    int64_t latency = t1 - t0;
>+    if (latency < best_latency) {
>+      best_latency = latency;
>+      best.time = t0;
>+      best.tsc = tsc;
>+    }
>+  }
>+  return best;
>+}
>+
>+// Measures and returns the TSC frequency by taking a pair of
>+// measurements approximately `sleep_nanoseconds` apart.
>+static double MeasureTscFrequencyWithSleep(int sleep_nanoseconds) {
>+  auto t0 = GetTimeTscPair();
>+  struct timespec ts;
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = sleep_nanoseconds;
>+  while (nanosleep(&ts, &ts) != 0 && errno == EINTR) {}
>+  auto t1 = GetTimeTscPair();
>+  double elapsed_ticks = t1.tsc - t0.tsc;
>+  double elapsed_time = (t1.time - t0.time) * 1e-9;
>+  return elapsed_ticks / elapsed_time;
>+}
>+
>+// Measures and returns the TSC frequency by calling
>+// MeasureTscFrequencyWithSleep(), doubling the sleep interval until the
>+// frequency measurement stabilizes.
>+static double MeasureTscFrequency() {
>+  double last_measurement = -1.0;
>+  int sleep_nanoseconds = 1000000;  // 1 millisecond.
>+  for (int i = 0; i < 8; ++i) {
>+    double measurement = MeasureTscFrequencyWithSleep(sleep_nanoseconds);
>+    if (measurement * 0.99 < last_measurement &&
>+        last_measurement < measurement * 1.01) {
>+      // Use the current measurement if it is within 1% of the
>+      // previous measurement.
>+      return measurement;
>+    }
>+    last_measurement = measurement;
>+    sleep_nanoseconds *= 2;
>+  }
>+  return last_measurement;
>+}
>+
>+#endif  // ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY
>+
>+static double GetNominalCPUFrequency() {
>+  long freq = 0;
>+
>+  // Google's production kernel has a patch to export the TSC
>+  // frequency through sysfs. If the kernel is exporting the TSC
>+  // frequency use that. There are issues where cpuinfo_max_freq
>+  // cannot be relied on because the BIOS may be exporting an invalid
>+  // p-state (on x86) or p-states may be used to put the processor in
>+  // a new mode (turbo mode). Essentially, those frequencies cannot
>+  // always be relied upon. The same reasons apply to /proc/cpuinfo as
>+  // well.
>+  if (ReadLongFromFile("/sys/devices/system/cpu/cpu0/tsc_freq_khz", &freq)) {
>+    return freq * 1e3;  // Value is kHz.
>+  }
>+
>+#if defined(ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY)
>+  // On these platforms, the TSC frequency is the nominal CPU
>+  // frequency.  But without having the kernel export it directly
>+  // though /sys/devices/system/cpu/cpu0/tsc_freq_khz, there is no
>+  // other way to reliably get the TSC frequency, so we have to
>+  // measure it ourselves.  Some CPUs abuse cpuinfo_max_freq by
>+  // exporting "fake" frequencies for implementing new features. For
>+  // example, Intel's turbo mode is enabled by exposing a p-state
>+  // value with a higher frequency than that of the real TSC
>+  // rate. Because of this, we prefer to measure the TSC rate
>+  // ourselves on i386 and x86-64.
>+  return MeasureTscFrequency();
>+#else
>+
>+  // If CPU scaling is in effect, we want to use the *maximum*
>+  // frequency, not whatever CPU speed some random processor happens
>+  // to be using now.
>+  if (ReadLongFromFile("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq",
>+                       &freq)) {
>+    return freq * 1e3;  // Value is kHz.
>+  }
>+
>+  return 1.0;
>+#endif  // !ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY
>+}
>+
>+#endif
>+
>+// InitializeSystemInfo() may be called before main() and before
>+// malloc is properly initialized, therefore this must not allocate
>+// memory.
>+static void InitializeSystemInfo() {
>+  num_cpus = GetNumCPUs();
>+  nominal_cpu_frequency = GetNominalCPUFrequency();
>+}
>+
>+int NumCPUs() {
>+  base_internal::LowLevelCallOnce(&init_system_info_once, InitializeSystemInfo);
>+  return num_cpus;
>+}
>+
>+double NominalCPUFrequency() {
>+  base_internal::LowLevelCallOnce(&init_system_info_once, InitializeSystemInfo);
>+  return nominal_cpu_frequency;
>+}
>+
>+#if defined(_WIN32)
>+
>+pid_t GetTID() {
>+  return GetCurrentThreadId();
>+}
>+
>+#elif defined(__linux__)
>+
>+#ifndef SYS_gettid
>+#define SYS_gettid __NR_gettid
>+#endif
>+
>+pid_t GetTID() {
>+  return syscall(SYS_gettid);
>+}
>+
>+#elif defined(__akaros__)
>+
>+pid_t GetTID() {
>+  // Akaros has a concept of "vcore context", which is the state the program
>+  // is forced into when we need to make a user-level scheduling decision, or
>+  // run a signal handler.  This is analogous to the interrupt context that a
>+  // CPU might enter if it encounters some kind of exception.
>+  //
>+  // There is no current thread context in vcore context, but we need to give
>+  // a reasonable answer if asked for a thread ID (e.g., in a signal handler).
>+  // Thread 0 always exists, so if we are in vcore context, we return that.
>+  //
>+  // Otherwise, we know (since we are using pthreads) that the uthread struct
>+  // current_uthread is pointing to is the first element of a
>+  // struct pthread_tcb, so we extract and return the thread ID from that.
>+  //
>+  // TODO(dcross): Akaros anticipates moving the thread ID to the uthread
>+  // structure at some point. We should modify this code to remove the cast
>+  // when that happens.
>+  if (in_vcore_context())
>+    return 0;
>+  return reinterpret_cast<struct pthread_tcb *>(current_uthread)->id;
>+}
>+
>+#elif defined(__myriad2__)
>+
>+pid_t GetTID() {
>+  uint32_t tid;
>+  rtems_task_ident(RTEMS_SELF, 0, &tid);
>+  return tid;
>+}
>+
>+#else
>+
>+// Fallback implementation of GetTID using pthread_getspecific.
>+static once_flag tid_once;
>+static pthread_key_t tid_key;
>+static absl::base_internal::SpinLock tid_lock(
>+    absl::base_internal::kLinkerInitialized);
>+
>+// We set a bit per thread in this array to indicate that an ID is in
>+// use. ID 0 is unused because it is the default value returned by
>+// pthread_getspecific().
>+static std::vector<uint32_t>* tid_array GUARDED_BY(tid_lock) = nullptr;
>+static constexpr int kBitsPerWord = 32;  // tid_array is uint32_t.
>+
>+// Returns the TID to tid_array.
>+static void FreeTID(void *v) {
>+  intptr_t tid = reinterpret_cast<intptr_t>(v);
>+  int word = tid / kBitsPerWord;
>+  uint32_t mask = ~(1u << (tid % kBitsPerWord));
>+  absl::base_internal::SpinLockHolder lock(&tid_lock);
>+  assert(0 <= word && static_cast<size_t>(word) < tid_array->size());
>+  (*tid_array)[word] &= mask;
>+}
>+
>+static void InitGetTID() {
>+  if (pthread_key_create(&tid_key, FreeTID) != 0) {
>+    // The logging system calls GetTID() so it can't be used here.
>+    perror("pthread_key_create failed");
>+    abort();
>+  }
>+
>+  // Initialize tid_array.
>+  absl::base_internal::SpinLockHolder lock(&tid_lock);
>+  tid_array = new std::vector<uint32_t>(1);
>+  (*tid_array)[0] = 1;  // ID 0 is never-allocated.
>+}
>+
>+// Return a per-thread small integer ID from pthread's thread-specific data.
>+pid_t GetTID() {
>+  absl::call_once(tid_once, InitGetTID);
>+
>+  intptr_t tid = reinterpret_cast<intptr_t>(pthread_getspecific(tid_key));
>+  if (tid != 0) {
>+    return tid;
>+  }
>+
>+  int bit;  // tid_array[word] = 1u << bit;
>+  size_t word;
>+  {
>+    // Search for the first unused ID.
>+    absl::base_internal::SpinLockHolder lock(&tid_lock);
>+    // First search for a word in the array that is not all ones.
>+    word = 0;
>+    while (word < tid_array->size() && ~(*tid_array)[word] == 0) {
>+      ++word;
>+    }
>+    if (word == tid_array->size()) {
>+      tid_array->push_back(0);  // No space left, add kBitsPerWord more IDs.
>+    }
>+    // Search for a zero bit in the word.
>+    bit = 0;
>+    while (bit < kBitsPerWord && (((*tid_array)[word] >> bit) & 1) != 0) {
>+      ++bit;
>+    }
>+    tid = (word * kBitsPerWord) + bit;
>+    (*tid_array)[word] |= 1u << bit;  // Mark the TID as allocated.
>+  }
>+
>+  if (pthread_setspecific(tid_key, reinterpret_cast<void *>(tid)) != 0) {
>+    perror("pthread_setspecific failed");
>+    abort();
>+  }
>+
>+  return static_cast<pid_t>(tid);
>+}
>+
>+#endif
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..5bd1c500bd54cc566655e4eb2205e26656ceb2f2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo.h
>@@ -0,0 +1,63 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file includes routines to find out characteristics
>+// of the machine a program is running on.  It is undoubtedly
>+// system-dependent.
>+
>+// Functions listed here that accept a pid_t as an argument act on the
>+// current process if the pid_t argument is 0
>+// All functions here are thread-hostile due to file caching unless
>+// commented otherwise.
>+
>+#ifndef ABSL_BASE_INTERNAL_SYSINFO_H_
>+#define ABSL_BASE_INTERNAL_SYSINFO_H_
>+
>+#ifndef _WIN32
>+#include <sys/types.h>
>+#else
>+#include <intsafe.h>
>+#endif
>+
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// Nominal core processor cycles per second of each processor.   This is _not_
>+// necessarily the frequency of the CycleClock counter (see cycleclock.h)
>+// Thread-safe.
>+double NominalCPUFrequency();
>+
>+// Number of logical processors (hyperthreads) in system. Thread-safe.
>+int NumCPUs();
>+
>+// Return the thread id of the current thread, as told by the system.
>+// No two currently-live threads implemented by the OS shall have the same ID.
>+// Thread ids of exited threads may be reused.   Multiple user-level threads
>+// may have the same thread ID if multiplexed on the same OS thread.
>+//
>+// On Linux, you may send a signal to the resulting ID with kill().  However,
>+// it is recommended for portability that you use pthread_kill() instead.
>+#ifdef _WIN32
>+// On Windows, process id and thread id are of the same type according to
>+// the return types of GetProcessId() and GetThreadId() are both DWORD.
>+using pid_t = DWORD;
>+#endif
>+pid_t GetTID();
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_SYSINFO_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e0d9aab9bc2dc0d4015ffc62cd1a8e02eeb1e213
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/sysinfo_test.cc
>@@ -0,0 +1,98 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/sysinfo.h"
>+
>+#ifndef _WIN32
>+#include <sys/types.h>
>+#include <unistd.h>
>+#endif
>+
>+#include <thread>  // NOLINT(build/c++11)
>+#include <unordered_set>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/synchronization/barrier.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+namespace base_internal {
>+namespace {
>+
>+TEST(SysinfoTest, NumCPUs) {
>+  EXPECT_NE(NumCPUs(), 0)
>+      << "NumCPUs() should not have the default value of 0";
>+}
>+
>+TEST(SysinfoTest, NominalCPUFrequency) {
>+#if !(defined(__aarch64__) && defined(__linux__))
>+  EXPECT_GE(NominalCPUFrequency(), 1000.0)
>+      << "NominalCPUFrequency() did not return a reasonable value";
>+#else
>+  // TODO(absl-team): Aarch64 cannot read the CPU frequency from sysfs, so we
>+  // get back 1.0. Fix once the value is available.
>+  EXPECT_EQ(NominalCPUFrequency(), 1.0)
>+      << "CPU frequency detection was fixed! Please update unittest.";
>+#endif
>+}
>+
>+TEST(SysinfoTest, GetTID) {
>+  EXPECT_EQ(GetTID(), GetTID());  // Basic compile and equality test.
>+#ifdef __native_client__
>+  // Native Client has a race condition bug that leads to memory
>+  // exaustion when repeatedly creating and joining threads.
>+  // https://bugs.chromium.org/p/nativeclient/issues/detail?id=1027
>+  return;
>+#endif
>+  // Test that TIDs are unique to each thread.
>+  // Uses a few loops to exercise implementations that reallocate IDs.
>+  for (int i = 0; i < 32; ++i) {
>+    constexpr int kNumThreads = 64;
>+    Barrier all_threads_done(kNumThreads);
>+    std::vector<std::thread> threads;
>+
>+    Mutex mutex;
>+    std::unordered_set<pid_t> tids;
>+
>+    for (int j = 0; j < kNumThreads; ++j) {
>+      threads.push_back(std::thread([&]() {
>+        pid_t id = GetTID();
>+        {
>+          MutexLock lock(&mutex);
>+          ASSERT_TRUE(tids.find(id) == tids.end());
>+          tids.insert(id);
>+        }
>+        // We can't simply join the threads here. The threads need to
>+        // be alive otherwise the TID might have been reallocated to
>+        // another live thread.
>+        all_threads_done.Block();
>+      }));
>+    }
>+    for (auto& thread : threads) {
>+      thread.join();
>+    }
>+  }
>+}
>+
>+#ifdef __linux__
>+TEST(SysinfoTest, LinuxGetTID) {
>+  // On Linux, for the main thread, GetTID()==getpid() is guaranteed by the API.
>+  EXPECT_EQ(GetTID(), getpid());
>+}
>+#endif
>+
>+}  // namespace
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..678e8568d7421e5148e9d19cd56e68084a003705
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.cc
>@@ -0,0 +1,123 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/thread_identity.h"
>+
>+#ifndef _WIN32
>+#include <pthread.h>
>+#include <signal.h>
>+#endif
>+
>+#include <atomic>
>+#include <cassert>
>+#include <memory>
>+
>+#include "absl/base/call_once.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+#if ABSL_THREAD_IDENTITY_MODE != ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+namespace {
>+// Used to co-ordinate one-time creation of our pthread_key
>+absl::once_flag init_thread_identity_key_once;
>+pthread_key_t thread_identity_pthread_key;
>+std::atomic<bool> pthread_key_initialized(false);
>+
>+void AllocateThreadIdentityKey(ThreadIdentityReclaimerFunction reclaimer) {
>+  pthread_key_create(&thread_identity_pthread_key, reclaimer);
>+  pthread_key_initialized.store(true, std::memory_order_release);
>+}
>+}  // namespace
>+#endif
>+
>+#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \
>+    ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+// The actual TLS storage for a thread's currently associated ThreadIdentity.
>+// This is referenced by inline accessors in the header.
>+// "protected" visibility ensures that if multiple instances of Abseil code
>+// exist within a process (via dlopen() or similar), references to
>+// thread_identity_ptr from each instance of the code will refer to
>+// *different* instances of this ptr.
>+#ifdef __GNUC__
>+__attribute__((visibility("protected")))
>+#endif  // __GNUC__
>+  ABSL_PER_THREAD_TLS_KEYWORD ThreadIdentity* thread_identity_ptr;
>+#endif  // TLS or CPP11
>+
>+void SetCurrentThreadIdentity(
>+    ThreadIdentity* identity, ThreadIdentityReclaimerFunction reclaimer) {
>+  assert(CurrentThreadIdentityIfPresent() == nullptr);
>+  // Associate our destructor.
>+  // NOTE: This call to pthread_setspecific is currently the only immovable
>+  // barrier to CurrentThreadIdentity() always being async signal safe.
>+#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+  // NOTE: Not async-safe.  But can be open-coded.
>+  absl::call_once(init_thread_identity_key_once, AllocateThreadIdentityKey,
>+                  reclaimer);
>+  // We must mask signals around the call to setspecific as with current glibc,
>+  // a concurrent getspecific (needed for GetCurrentThreadIdentityIfPresent())
>+  // may zero our value.
>+  //
>+  // While not officially async-signal safe, getspecific within a signal handler
>+  // is otherwise OK.
>+  sigset_t all_signals;
>+  sigset_t curr_signals;
>+  sigfillset(&all_signals);
>+  pthread_sigmask(SIG_SETMASK, &all_signals, &curr_signals);
>+  pthread_setspecific(thread_identity_pthread_key,
>+                      reinterpret_cast<void*>(identity));
>+  pthread_sigmask(SIG_SETMASK, &curr_signals, nullptr);
>+#elif ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS
>+  // NOTE: Not async-safe.  But can be open-coded.
>+  absl::call_once(init_thread_identity_key_once, AllocateThreadIdentityKey,
>+                  reclaimer);
>+  pthread_setspecific(thread_identity_pthread_key,
>+                      reinterpret_cast<void*>(identity));
>+  thread_identity_ptr = identity;
>+#elif ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+  thread_local std::unique_ptr<ThreadIdentity, ThreadIdentityReclaimerFunction>
>+      holder(identity, reclaimer);
>+  thread_identity_ptr = identity;
>+#else
>+#error Unimplemented ABSL_THREAD_IDENTITY_MODE
>+#endif
>+}
>+
>+void ClearCurrentThreadIdentity() {
>+#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \
>+    ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+  thread_identity_ptr = nullptr;
>+#elif ABSL_THREAD_IDENTITY_MODE == \
>+      ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+  // pthread_setspecific expected to clear value on destruction
>+  assert(CurrentThreadIdentityIfPresent() == nullptr);
>+#endif
>+}
>+
>+#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+ThreadIdentity* CurrentThreadIdentityIfPresent() {
>+  bool initialized = pthread_key_initialized.load(std::memory_order_acquire);
>+  if (!initialized) {
>+    return nullptr;
>+  }
>+  return reinterpret_cast<ThreadIdentity*>(
>+      pthread_getspecific(thread_identity_pthread_key));
>+}
>+#endif
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a51722f9d828d54965ed9b19993c3c877f44ddbf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity.h
>@@ -0,0 +1,240 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Each active thread has an ThreadIdentity that may represent the thread in
>+// various level interfaces.  ThreadIdentity objects are never deallocated.
>+// When a thread terminates, its ThreadIdentity object may be reused for a
>+// thread created later.
>+
>+#ifndef ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_
>+#define ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_
>+
>+#ifndef _WIN32
>+#include <pthread.h>
>+// Defines __GOOGLE_GRTE_VERSION__ (via glibc-specific features.h) when
>+// supported.
>+#include <unistd.h>
>+#endif
>+
>+#include <atomic>
>+#include <cstdint>
>+
>+#include "absl/base/internal/per_thread_tls.h"
>+
>+namespace absl {
>+
>+struct SynchLocksHeld;
>+struct SynchWaitParams;
>+
>+namespace base_internal {
>+
>+class SpinLock;
>+struct ThreadIdentity;
>+
>+// Used by the implementation of base::Mutex and base::CondVar.
>+struct PerThreadSynch {
>+  // The internal representation of base::Mutex and base::CondVar rely
>+  // on the alignment of PerThreadSynch. Both store the address of the
>+  // PerThreadSynch in the high-order bits of their internal state,
>+  // which means the low kLowZeroBits of the address of PerThreadSynch
>+  // must be zero.
>+  static constexpr int kLowZeroBits = 8;
>+  static constexpr int kAlignment = 1 << kLowZeroBits;
>+
>+  // Returns the associated ThreadIdentity.
>+  // This can be implemented as a cast because we guarantee
>+  // PerThreadSynch is the first element of ThreadIdentity.
>+  ThreadIdentity* thread_identity() {
>+    return reinterpret_cast<ThreadIdentity*>(this);
>+  }
>+
>+  PerThreadSynch *next;  // Circular waiter queue; initialized to 0.
>+  PerThreadSynch *skip;  // If non-zero, all entries in Mutex queue
>+                         // up to and including "skip" have same
>+                         // condition as this, and will be woken later
>+  bool may_skip;         // if false while on mutex queue, a mutex unlocker
>+                         // is using this PerThreadSynch as a terminator.  Its
>+                         // skip field must not be filled in because the loop
>+                         // might then skip over the terminator.
>+
>+  // The wait parameters of the current wait.  waitp is null if the
>+  // thread is not waiting. Transitions from null to non-null must
>+  // occur before the enqueue commit point (state = kQueued in
>+  // Enqueue() and CondVarEnqueue()). Transitions from non-null to
>+  // null must occur after the wait is finished (state = kAvailable in
>+  // Mutex::Block() and CondVar::WaitCommon()). This field may be
>+  // changed only by the thread that describes this PerThreadSynch.  A
>+  // special case is Fer(), which calls Enqueue() on another thread,
>+  // but with an identical SynchWaitParams pointer, thus leaving the
>+  // pointer unchanged.
>+  SynchWaitParams *waitp;
>+
>+  bool suppress_fatal_errors;  // If true, try to proceed even in the face of
>+                               // broken invariants.  This is used within fatal
>+                               // signal handlers to improve the chances of
>+                               // debug logging information being output
>+                               // successfully.
>+
>+  intptr_t readers;     // Number of readers in mutex.
>+  int priority;         // Priority of thread (updated every so often).
>+
>+  // When priority will next be read (cycles).
>+  int64_t next_priority_read_cycles;
>+
>+  // State values:
>+  //   kAvailable: This PerThreadSynch is available.
>+  //   kQueued: This PerThreadSynch is unavailable, it's currently queued on a
>+  //            Mutex or CondVar waistlist.
>+  //
>+  // Transitions from kQueued to kAvailable require a release
>+  // barrier. This is needed as a waiter may use "state" to
>+  // independently observe that it's no longer queued.
>+  //
>+  // Transitions from kAvailable to kQueued require no barrier, they
>+  // are externally ordered by the Mutex.
>+  enum State {
>+    kAvailable,
>+    kQueued
>+  };
>+  std::atomic<State> state;
>+
>+  bool maybe_unlocking;  // Valid at head of Mutex waiter queue;
>+                         // true if UnlockSlow could be searching
>+                         // for a waiter to wake.  Used for an optimization
>+                         // in Enqueue().  true is always a valid value.
>+                         // Can be reset to false when the unlocker or any
>+                         // writer releases the lock, or a reader fully releases
>+                         // the lock.  It may not be set to false by a reader
>+                         // that decrements the count to non-zero.
>+                         // protected by mutex spinlock
>+
>+  bool wake;  // This thread is to be woken from a Mutex.
>+
>+  // If "x" is on a waiter list for a mutex, "x->cond_waiter" is true iff the
>+  // waiter is waiting on the mutex as part of a CV Wait or Mutex Await.
>+  //
>+  // The value of "x->cond_waiter" is meaningless if "x" is not on a
>+  // Mutex waiter list.
>+  bool cond_waiter;
>+
>+  // Locks held; used during deadlock detection.
>+  // Allocated in Synch_GetAllLocks() and freed in ReclaimThreadIdentity().
>+  SynchLocksHeld *all_locks;
>+};
>+
>+struct ThreadIdentity {
>+  // Must be the first member.  The Mutex implementation requires that
>+  // the PerThreadSynch object associated with each thread is
>+  // PerThreadSynch::kAlignment aligned.  We provide this alignment on
>+  // ThreadIdentity itself.
>+  PerThreadSynch per_thread_synch;
>+
>+  // Private: Reserved for absl::synchronization_internal::Waiter.
>+  struct WaiterState {
>+    char data[128];
>+  } waiter_state;
>+
>+  // Used by PerThreadSem::{Get,Set}ThreadBlockedCounter().
>+  std::atomic<int>* blocked_count_ptr;
>+
>+  // The following variables are mostly read/written just by the
>+  // thread itself.  The only exception is that these are read by
>+  // a ticker thread as a hint.
>+  std::atomic<int> ticker;      // Tick counter, incremented once per second.
>+  std::atomic<int> wait_start;  // Ticker value when thread started waiting.
>+  std::atomic<bool> is_idle;    // Has thread become idle yet?
>+
>+  ThreadIdentity* next;
>+};
>+
>+// Returns the ThreadIdentity object representing the calling thread; guaranteed
>+// to be unique for its lifetime.  The returned object will remain valid for the
>+// program's lifetime; although it may be re-assigned to a subsequent thread.
>+// If one does not exist, return nullptr instead.
>+//
>+// Does not malloc(*), and is async-signal safe.
>+// [*] Technically pthread_setspecific() does malloc on first use; however this
>+// is handled internally within tcmalloc's initialization already.
>+//
>+// New ThreadIdentity objects can be constructed and associated with a thread
>+// by calling GetOrCreateCurrentThreadIdentity() in per-thread-sem.h.
>+ThreadIdentity* CurrentThreadIdentityIfPresent();
>+
>+using ThreadIdentityReclaimerFunction = void (*)(void*);
>+
>+// Sets the current thread identity to the given value.  'reclaimer' is a
>+// pointer to the global function for cleaning up instances on thread
>+// destruction.
>+void SetCurrentThreadIdentity(ThreadIdentity* identity,
>+                              ThreadIdentityReclaimerFunction reclaimer);
>+
>+// Removes the currently associated ThreadIdentity from the running thread.
>+// This must be called from inside the ThreadIdentityReclaimerFunction, and only
>+// from that function.
>+void ClearCurrentThreadIdentity();
>+
>+// May be chosen at compile time via: -DABSL_FORCE_THREAD_IDENTITY_MODE=<mode
>+// index>
>+#ifdef ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+#error ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC cannot be direcly set
>+#else
>+#define ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC 0
>+#endif
>+
>+#ifdef ABSL_THREAD_IDENTITY_MODE_USE_TLS
>+#error ABSL_THREAD_IDENTITY_MODE_USE_TLS cannot be direcly set
>+#else
>+#define ABSL_THREAD_IDENTITY_MODE_USE_TLS 1
>+#endif
>+
>+#ifdef ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+#error ABSL_THREAD_IDENTITY_MODE_USE_CPP11 cannot be direcly set
>+#else
>+#define ABSL_THREAD_IDENTITY_MODE_USE_CPP11 2
>+#endif
>+
>+#ifdef ABSL_THREAD_IDENTITY_MODE
>+#error ABSL_THREAD_IDENTITY_MODE cannot be direcly set
>+#elif defined(ABSL_FORCE_THREAD_IDENTITY_MODE)
>+#define ABSL_THREAD_IDENTITY_MODE ABSL_FORCE_THREAD_IDENTITY_MODE
>+#elif defined(_WIN32)
>+#define ABSL_THREAD_IDENTITY_MODE ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+#elif ABSL_PER_THREAD_TLS && defined(__GOOGLE_GRTE_VERSION__) && \
>+    (__GOOGLE_GRTE_VERSION__ >= 20140228L)
>+// Support for async-safe TLS was specifically added in GRTEv4.  It's not
>+// present in the upstream eglibc.
>+// Note:  Current default for production systems.
>+#define ABSL_THREAD_IDENTITY_MODE ABSL_THREAD_IDENTITY_MODE_USE_TLS
>+#else
>+#define ABSL_THREAD_IDENTITY_MODE \
>+  ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+#endif
>+
>+#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \
>+    ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11
>+
>+extern ABSL_PER_THREAD_TLS_KEYWORD ThreadIdentity* thread_identity_ptr;
>+
>+inline ThreadIdentity* CurrentThreadIdentityIfPresent() {
>+  return thread_identity_ptr;
>+}
>+
>+#elif ABSL_THREAD_IDENTITY_MODE != \
>+    ABSL_THREAD_IDENTITY_MODE_USE_POSIX_SETSPECIFIC
>+#error Unknown ABSL_THREAD_IDENTITY_MODE
>+#endif
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+#endif  // ABSL_BASE_INTERNAL_THREAD_IDENTITY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..242522b4418af000b568b5f8f20fb4757b8e3cc3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_benchmark.cc
>@@ -0,0 +1,38 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/synchronization/internal/create_thread_identity.h"
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+
>+namespace {
>+
>+void BM_SafeCurrentThreadIdentity(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::synchronization_internal::GetOrCreateCurrentThreadIdentity());
>+  }
>+}
>+BENCHMARK(BM_SafeCurrentThreadIdentity);
>+
>+void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::base_internal::CurrentThreadIdentityIfPresent());
>+  }
>+}
>+BENCHMARK(BM_UnsafeCurrentThreadIdentity);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ecb8af68982987508817b4dca435c6754be89aa6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/thread_identity_test.cc
>@@ -0,0 +1,126 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/thread_identity.h"
>+
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/macros.h"
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+namespace base_internal {
>+namespace {
>+
>+// protects num_identities_reused
>+static absl::base_internal::SpinLock map_lock(
>+    absl::base_internal::kLinkerInitialized);
>+static int num_identities_reused;
>+
>+static const void* const kCheckNoIdentity = reinterpret_cast<void*>(1);
>+
>+static void TestThreadIdentityCurrent(const void* assert_no_identity) {
>+  ThreadIdentity* identity;
>+
>+  // We have to test this conditionally, because if the test framework relies
>+  // on Abseil, then some previous action may have already allocated an
>+  // identity.
>+  if (assert_no_identity == kCheckNoIdentity) {
>+    identity = CurrentThreadIdentityIfPresent();
>+    EXPECT_TRUE(identity == nullptr);
>+  }
>+
>+  identity = synchronization_internal::GetOrCreateCurrentThreadIdentity();
>+  EXPECT_TRUE(identity != nullptr);
>+  ThreadIdentity* identity_no_init;
>+  identity_no_init = CurrentThreadIdentityIfPresent();
>+  EXPECT_TRUE(identity == identity_no_init);
>+
>+  // Check that per_thread_synch is correctly aligned.
>+  EXPECT_EQ(0, reinterpret_cast<intptr_t>(&identity->per_thread_synch) %
>+                   PerThreadSynch::kAlignment);
>+  EXPECT_EQ(identity, identity->per_thread_synch.thread_identity());
>+
>+  absl::base_internal::SpinLockHolder l(&map_lock);
>+  num_identities_reused++;
>+}
>+
>+TEST(ThreadIdentityTest, BasicIdentityWorks) {
>+  // This tests for the main() thread.
>+  TestThreadIdentityCurrent(nullptr);
>+}
>+
>+TEST(ThreadIdentityTest, BasicIdentityWorksThreaded) {
>+  // Now try the same basic test with multiple threads being created and
>+  // destroyed.  This makes sure that:
>+  // - New threads are created without a ThreadIdentity.
>+  // - We re-allocate ThreadIdentity objects from the free-list.
>+  // - If a thread implementation chooses to recycle threads, that
>+  //   correct re-initialization occurs.
>+  static const int kNumLoops = 3;
>+  static const int kNumThreads = 400;
>+  for (int iter = 0; iter < kNumLoops; iter++) {
>+    std::vector<std::thread> threads;
>+    for (int i = 0; i < kNumThreads; ++i) {
>+      threads.push_back(
>+          std::thread(TestThreadIdentityCurrent, kCheckNoIdentity));
>+    }
>+    for (auto& thread : threads) {
>+      thread.join();
>+    }
>+  }
>+
>+  // We should have recycled ThreadIdentity objects above; while (external)
>+  // library threads allocating their own identities may preclude some
>+  // reuse, we should have sufficient repetitions to exclude this.
>+  EXPECT_LT(kNumThreads, num_identities_reused);
>+}
>+
>+TEST(ThreadIdentityTest, ReusedThreadIdentityMutexTest) {
>+  // This test repeatly creates and joins a series of threads, each of
>+  // which acquires and releases shared Mutex locks. This verifies
>+  // Mutex operations work correctly under a reused
>+  // ThreadIdentity. Note that the most likely failure mode of this
>+  // test is a crash or deadlock.
>+  static const int kNumLoops = 10;
>+  static const int kNumThreads = 12;
>+  static const int kNumMutexes = 3;
>+  static const int kNumLockLoops = 5;
>+
>+  Mutex mutexes[kNumMutexes];
>+  for (int iter = 0; iter < kNumLoops; ++iter) {
>+    std::vector<std::thread> threads;
>+    for (int thread = 0; thread < kNumThreads; ++thread) {
>+      threads.push_back(std::thread([&]() {
>+        for (int l = 0; l < kNumLockLoops; ++l) {
>+          for (int m = 0; m < kNumMutexes; ++m) {
>+            MutexLock lock(&mutexes[m]);
>+          }
>+        }
>+      }));
>+    }
>+    for (auto& thread : threads) {
>+      thread.join();
>+    }
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..46dc573cfa8425f0fa72d563f481dc9093301c3c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.cc
>@@ -0,0 +1,106 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/throw_delegate.h"
>+
>+#include <cstdlib>
>+#include <functional>
>+#include <new>
>+#include <stdexcept>
>+#include "absl/base/config.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+namespace {
>+template <typename T>
>+[[noreturn]] void Throw(const T& error) {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  throw error;
>+#else
>+  ABSL_RAW_LOG(ERROR, "%s", error.what());
>+  abort();
>+#endif
>+}
>+}  // namespace
>+
>+void ThrowStdLogicError(const std::string& what_arg) {
>+  Throw(std::logic_error(what_arg));
>+}
>+void ThrowStdLogicError(const char* what_arg) {
>+  Throw(std::logic_error(what_arg));
>+}
>+void ThrowStdInvalidArgument(const std::string& what_arg) {
>+  Throw(std::invalid_argument(what_arg));
>+}
>+void ThrowStdInvalidArgument(const char* what_arg) {
>+  Throw(std::invalid_argument(what_arg));
>+}
>+
>+void ThrowStdDomainError(const std::string& what_arg) {
>+  Throw(std::domain_error(what_arg));
>+}
>+void ThrowStdDomainError(const char* what_arg) {
>+  Throw(std::domain_error(what_arg));
>+}
>+
>+void ThrowStdLengthError(const std::string& what_arg) {
>+  Throw(std::length_error(what_arg));
>+}
>+void ThrowStdLengthError(const char* what_arg) {
>+  Throw(std::length_error(what_arg));
>+}
>+
>+void ThrowStdOutOfRange(const std::string& what_arg) {
>+  Throw(std::out_of_range(what_arg));
>+}
>+void ThrowStdOutOfRange(const char* what_arg) {
>+  Throw(std::out_of_range(what_arg));
>+}
>+
>+void ThrowStdRuntimeError(const std::string& what_arg) {
>+  Throw(std::runtime_error(what_arg));
>+}
>+void ThrowStdRuntimeError(const char* what_arg) {
>+  Throw(std::runtime_error(what_arg));
>+}
>+
>+void ThrowStdRangeError(const std::string& what_arg) {
>+  Throw(std::range_error(what_arg));
>+}
>+void ThrowStdRangeError(const char* what_arg) {
>+  Throw(std::range_error(what_arg));
>+}
>+
>+void ThrowStdOverflowError(const std::string& what_arg) {
>+  Throw(std::overflow_error(what_arg));
>+}
>+void ThrowStdOverflowError(const char* what_arg) {
>+  Throw(std::overflow_error(what_arg));
>+}
>+
>+void ThrowStdUnderflowError(const std::string& what_arg) {
>+  Throw(std::underflow_error(what_arg));
>+}
>+void ThrowStdUnderflowError(const char* what_arg) {
>+  Throw(std::underflow_error(what_arg));
>+}
>+
>+void ThrowStdBadFunctionCall() { Throw(std::bad_function_call()); }
>+
>+void ThrowStdBadAlloc() { Throw(std::bad_alloc()); }
>+
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..70e2d7709e5b56e02a43d02ce48934693447571a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/throw_delegate.h
>@@ -0,0 +1,71 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_THROW_DELEGATE_H_
>+#define ABSL_BASE_INTERNAL_THROW_DELEGATE_H_
>+
>+#include <string>
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// Helper functions that allow throwing exceptions consistently from anywhere.
>+// The main use case is for header-based libraries (eg templates), as they will
>+// be built by many different targets with their own compiler options.
>+// In particular, this will allow a safe way to throw exceptions even if the
>+// caller is compiled with -fno-exceptions.  This is intended for implementing
>+// things like map<>::at(), which the standard documents as throwing an
>+// exception on error.
>+//
>+// Using other techniques like #if tricks could lead to ODR violations.
>+//
>+// You shouldn't use it unless you're writing code that you know will be built
>+// both with and without exceptions and you need to conform to an interface
>+// that uses exceptions.
>+
>+[[noreturn]] void ThrowStdLogicError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdLogicError(const char* what_arg);
>+[[noreturn]] void ThrowStdInvalidArgument(const std::string& what_arg);
>+[[noreturn]] void ThrowStdInvalidArgument(const char* what_arg);
>+[[noreturn]] void ThrowStdDomainError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdDomainError(const char* what_arg);
>+[[noreturn]] void ThrowStdLengthError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdLengthError(const char* what_arg);
>+[[noreturn]] void ThrowStdOutOfRange(const std::string& what_arg);
>+[[noreturn]] void ThrowStdOutOfRange(const char* what_arg);
>+[[noreturn]] void ThrowStdRuntimeError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdRuntimeError(const char* what_arg);
>+[[noreturn]] void ThrowStdRangeError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdRangeError(const char* what_arg);
>+[[noreturn]] void ThrowStdOverflowError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdOverflowError(const char* what_arg);
>+[[noreturn]] void ThrowStdUnderflowError(const std::string& what_arg);
>+[[noreturn]] void ThrowStdUnderflowError(const char* what_arg);
>+
>+[[noreturn]] void ThrowStdBadFunctionCall();
>+[[noreturn]] void ThrowStdBadAlloc();
>+
>+// ThrowStdBadArrayNewLength() cannot be consistently supported because
>+// std::bad_array_new_length is missing in libstdc++ until 4.9.0.
>+// https://gcc.gnu.org/onlinedocs/gcc-4.8.3/libstdc++/api/a01379_source.html
>+// https://gcc.gnu.org/onlinedocs/gcc-4.9.0/libstdc++/api/a01327_source.html
>+// libcxx (as of 3.2) and msvc (as of 2015) both have it.
>+// [[noreturn]] void ThrowStdBadArrayNewLength();
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_THROW_DELEGATE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..6bb4faedb879bb84bbab8b36c67bf5453ac8bfac
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/tsan_mutex_interface.h
>@@ -0,0 +1,66 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file is intended solely for spinlock.h.
>+// It provides ThreadSanitizer annotations for custom mutexes.
>+// See <sanitizer/tsan_interface.h> for meaning of these annotations.
>+
>+#ifndef ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_
>+#define ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_
>+
>+// ABSL_INTERNAL_HAVE_TSAN_INTERFACE
>+// Macro intended only for internal use.
>+//
>+// Checks whether LLVM Thread Sanitizer interfaces are available.
>+// First made available in LLVM 5.0 (Sep 2017).
>+#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE
>+#error "ABSL_INTERNAL_HAVE_TSAN_INTERFACE cannot be directly set."
>+#endif
>+
>+#if defined(THREAD_SANITIZER) && defined(__has_include)
>+#if __has_include(<sanitizer/tsan_interface.h>)
>+#define ABSL_INTERNAL_HAVE_TSAN_INTERFACE 1
>+#endif
>+#endif
>+
>+#ifdef ABSL_INTERNAL_HAVE_TSAN_INTERFACE
>+#include <sanitizer/tsan_interface.h>
>+
>+#define ABSL_TSAN_MUTEX_CREATE __tsan_mutex_create
>+#define ABSL_TSAN_MUTEX_DESTROY __tsan_mutex_destroy
>+#define ABSL_TSAN_MUTEX_PRE_LOCK __tsan_mutex_pre_lock
>+#define ABSL_TSAN_MUTEX_POST_LOCK __tsan_mutex_post_lock
>+#define ABSL_TSAN_MUTEX_PRE_UNLOCK __tsan_mutex_pre_unlock
>+#define ABSL_TSAN_MUTEX_POST_UNLOCK __tsan_mutex_post_unlock
>+#define ABSL_TSAN_MUTEX_PRE_SIGNAL __tsan_mutex_pre_signal
>+#define ABSL_TSAN_MUTEX_POST_SIGNAL __tsan_mutex_post_signal
>+#define ABSL_TSAN_MUTEX_PRE_DIVERT __tsan_mutex_pre_divert
>+#define ABSL_TSAN_MUTEX_POST_DIVERT __tsan_mutex_post_divert
>+
>+#else
>+
>+#define ABSL_TSAN_MUTEX_CREATE(...)
>+#define ABSL_TSAN_MUTEX_DESTROY(...)
>+#define ABSL_TSAN_MUTEX_PRE_LOCK(...)
>+#define ABSL_TSAN_MUTEX_POST_LOCK(...)
>+#define ABSL_TSAN_MUTEX_PRE_UNLOCK(...)
>+#define ABSL_TSAN_MUTEX_POST_UNLOCK(...)
>+#define ABSL_TSAN_MUTEX_PRE_SIGNAL(...)
>+#define ABSL_TSAN_MUTEX_POST_SIGNAL(...)
>+#define ABSL_TSAN_MUTEX_PRE_DIVERT(...)
>+#define ABSL_TSAN_MUTEX_POST_DIVERT(...)
>+
>+#endif
>+
>+#endif  // ABSL_BASE_INTERNAL_TSAN_MUTEX_INTERFACE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unaligned_access.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unaligned_access.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c7517abd71a6bf5250719d1d58cc7a05a906e1a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unaligned_access.h
>@@ -0,0 +1,297 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_
>+#define ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_
>+
>+#include <string.h>
>+#include <cstdint>
>+
>+#include "absl/base/attributes.h"
>+
>+// unaligned APIs
>+
>+// Portable handling of unaligned loads, stores, and copies.
>+// On some platforms, like ARM, the copy functions can be more efficient
>+// then a load and a store.
>+//
>+// It is possible to implement all of these these using constant-length memcpy
>+// calls, which is portable and will usually be inlined into simple loads and
>+// stores if the architecture supports it. However, such inlining usually
>+// happens in a pass that's quite late in compilation, which means the resulting
>+// loads and stores cannot participate in many other optimizations, leading to
>+// overall worse code.
>+
>+// The unaligned API is C++ only.  The declarations use C++ features
>+// (namespaces, inline) which are absent or incompatible in C.
>+#if defined(__cplusplus)
>+
>+#if defined(ADDRESS_SANITIZER) || defined(THREAD_SANITIZER) ||\
>+    defined(MEMORY_SANITIZER)
>+// Consider we have an unaligned load/store of 4 bytes from address 0x...05.
>+// AddressSanitizer will treat it as a 3-byte access to the range 05:07 and
>+// will miss a bug if 08 is the first unaddressable byte.
>+// ThreadSanitizer will also treat this as a 3-byte access to 05:07 and will
>+// miss a race between this access and some other accesses to 08.
>+// MemorySanitizer will correctly propagate the shadow on unaligned stores
>+// and correctly report bugs on unaligned loads, but it may not properly
>+// update and report the origin of the uninitialized memory.
>+// For all three tools, replacing an unaligned access with a tool-specific
>+// callback solves the problem.
>+
>+// Make sure uint16_t/uint32_t/uint64_t are defined.
>+#include <stdint.h>
>+
>+extern "C" {
>+uint16_t __sanitizer_unaligned_load16(const void *p);
>+uint32_t __sanitizer_unaligned_load32(const void *p);
>+uint64_t __sanitizer_unaligned_load64(const void *p);
>+void __sanitizer_unaligned_store16(void *p, uint16_t v);
>+void __sanitizer_unaligned_store32(void *p, uint32_t v);
>+void __sanitizer_unaligned_store64(void *p, uint64_t v);
>+}  // extern "C"
>+
>+namespace absl {
>+
>+inline uint16_t UnalignedLoad16(const void *p) {
>+  return __sanitizer_unaligned_load16(p);
>+}
>+
>+inline uint32_t UnalignedLoad32(const void *p) {
>+  return __sanitizer_unaligned_load32(p);
>+}
>+
>+inline uint64_t UnalignedLoad64(const void *p) {
>+  return __sanitizer_unaligned_load64(p);
>+}
>+
>+inline void UnalignedStore16(void *p, uint16_t v) {
>+  __sanitizer_unaligned_store16(p, v);
>+}
>+
>+inline void UnalignedStore32(void *p, uint32_t v) {
>+  __sanitizer_unaligned_store32(p, v);
>+}
>+
>+inline void UnalignedStore64(void *p, uint64_t v) {
>+  __sanitizer_unaligned_store64(p, v);
>+}
>+
>+}  // namespace absl
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p))
>+
>+#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \
>+  (absl::UnalignedStore16(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \
>+  (absl::UnalignedStore32(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \
>+  (absl::UnalignedStore64(_p, _val))
>+
>+#elif defined(UNDEFINED_BEHAVIOR_SANITIZER)
>+
>+namespace absl {
>+
>+inline uint16_t UnalignedLoad16(const void *p) {
>+  uint16_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline uint32_t UnalignedLoad32(const void *p) {
>+  uint32_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline uint64_t UnalignedLoad64(const void *p) {
>+  uint64_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline void UnalignedStore16(void *p, uint16_t v) { memcpy(p, &v, sizeof v); }
>+
>+inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); }
>+
>+inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); }
>+
>+}  // namespace absl
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p))
>+
>+#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \
>+  (absl::UnalignedStore16(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \
>+  (absl::UnalignedStore32(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \
>+  (absl::UnalignedStore64(_p, _val))
>+
>+#elif defined(__x86_64__) || defined(_M_X64) || defined(__i386) || \
>+    defined(_M_IX86) || defined(__ppc__) || defined(__PPC__) ||    \
>+    defined(__ppc64__) || defined(__PPC64__)
>+
>+// x86 and x86-64 can perform unaligned loads/stores directly;
>+// modern PowerPC hardware can also do unaligned integer loads and stores;
>+// but note: the FPU still sends unaligned loads and stores to a trap handler!
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \
>+  (*reinterpret_cast<const uint16_t *>(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \
>+  (*reinterpret_cast<const uint32_t *>(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \
>+  (*reinterpret_cast<const uint64_t *>(_p))
>+
>+#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \
>+  (*reinterpret_cast<uint16_t *>(_p) = (_val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \
>+  (*reinterpret_cast<uint32_t *>(_p) = (_val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \
>+  (*reinterpret_cast<uint64_t *>(_p) = (_val))
>+
>+#elif defined(__arm__) && \
>+      !defined(__ARM_ARCH_5__) && \
>+      !defined(__ARM_ARCH_5T__) && \
>+      !defined(__ARM_ARCH_5TE__) && \
>+      !defined(__ARM_ARCH_5TEJ__) && \
>+      !defined(__ARM_ARCH_6__) && \
>+      !defined(__ARM_ARCH_6J__) && \
>+      !defined(__ARM_ARCH_6K__) && \
>+      !defined(__ARM_ARCH_6Z__) && \
>+      !defined(__ARM_ARCH_6ZK__) && \
>+      !defined(__ARM_ARCH_6T2__)
>+
>+
>+// ARMv7 and newer support native unaligned accesses, but only of 16-bit
>+// and 32-bit values (not 64-bit); older versions either raise a fatal signal,
>+// do an unaligned read and rotate the words around a bit, or do the reads very
>+// slowly (trip through kernel mode). There's no simple #define that says just
>+// "ARMv7 or higher", so we have to filter away all ARMv5 and ARMv6
>+// sub-architectures. Newer gcc (>= 4.6) set an __ARM_FEATURE_ALIGNED #define,
>+// so in time, maybe we can move on to that.
>+//
>+// This is a mess, but there's not much we can do about it.
>+//
>+// To further complicate matters, only LDR instructions (single reads) are
>+// allowed to be unaligned, not LDRD (two reads) or LDM (many reads). Unless we
>+// explicitly tell the compiler that these accesses can be unaligned, it can and
>+// will combine accesses. On armcc, the way to signal this is done by accessing
>+// through the type (uint32_t __packed *), but GCC has no such attribute
>+// (it ignores __attribute__((packed)) on individual variables). However,
>+// we can tell it that a _struct_ is unaligned, which has the same effect,
>+// so we do that.
>+
>+namespace absl {
>+namespace internal {
>+
>+struct Unaligned16Struct {
>+  uint16_t value;
>+  uint8_t dummy;  // To make the size non-power-of-two.
>+} ABSL_ATTRIBUTE_PACKED;
>+
>+struct Unaligned32Struct {
>+  uint32_t value;
>+  uint8_t dummy;  // To make the size non-power-of-two.
>+} ABSL_ATTRIBUTE_PACKED;
>+
>+}  // namespace internal
>+}  // namespace absl
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \
>+  ((reinterpret_cast<const ::absl::internal::Unaligned16Struct *>(_p))->value)
>+#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \
>+  ((reinterpret_cast<const ::absl::internal::Unaligned32Struct *>(_p))->value)
>+
>+#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val)                          \
>+  ((reinterpret_cast< ::absl::internal::Unaligned16Struct *>(_p))->value = \
>+       (_val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val)                          \
>+  ((reinterpret_cast< ::absl::internal::Unaligned32Struct *>(_p))->value = \
>+       (_val))
>+
>+namespace absl {
>+
>+inline uint64_t UnalignedLoad64(const void *p) {
>+  uint64_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); }
>+
>+}  // namespace absl
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p))
>+#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \
>+  (absl::UnalignedStore64(_p, _val))
>+
>+#else
>+
>+// ABSL_INTERNAL_NEED_ALIGNED_LOADS is defined when the underlying platform
>+// doesn't support unaligned access.
>+#define ABSL_INTERNAL_NEED_ALIGNED_LOADS
>+
>+// These functions are provided for architectures that don't support
>+// unaligned loads and stores.
>+
>+namespace absl {
>+
>+inline uint16_t UnalignedLoad16(const void *p) {
>+  uint16_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline uint32_t UnalignedLoad32(const void *p) {
>+  uint32_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline uint64_t UnalignedLoad64(const void *p) {
>+  uint64_t t;
>+  memcpy(&t, p, sizeof t);
>+  return t;
>+}
>+
>+inline void UnalignedStore16(void *p, uint16_t v) { memcpy(p, &v, sizeof v); }
>+
>+inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); }
>+
>+inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); }
>+
>+}  // namespace absl
>+
>+#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p))
>+#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p))
>+
>+#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \
>+  (absl::UnalignedStore16(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \
>+  (absl::UnalignedStore32(_p, _val))
>+#define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \
>+  (absl::UnalignedStore64(_p, _val))
>+
>+#endif
>+
>+#endif  // defined(__cplusplus), end of unaligned API
>+
>+#endif  // ABSL_BASE_INTERNAL_UNALIGNED_ACCESS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a12d68bd10af6a2a99826d3fc828bd903d06c412
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc
>@@ -0,0 +1,101 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/unscaledcycleclock.h"
>+
>+#if ABSL_USE_UNSCALED_CYCLECLOCK
>+
>+#if defined(_WIN32)
>+#include <intrin.h>
>+#endif
>+
>+#if defined(__powerpc__) || defined(__ppc__)
>+#include <sys/platform/ppc.h>
>+#endif
>+
>+#include "absl/base/internal/sysinfo.h"
>+
>+namespace absl {
>+namespace base_internal {
>+
>+#if defined(__i386__)
>+
>+int64_t UnscaledCycleClock::Now() {
>+  int64_t ret;
>+  __asm__ volatile("rdtsc" : "=A"(ret));
>+  return ret;
>+}
>+
>+double UnscaledCycleClock::Frequency() {
>+  return base_internal::NominalCPUFrequency();
>+}
>+
>+#elif defined(__x86_64__)
>+
>+int64_t UnscaledCycleClock::Now() {
>+  uint64_t low, high;
>+  __asm__ volatile("rdtsc" : "=a"(low), "=d"(high));
>+  return (high << 32) | low;
>+}
>+
>+double UnscaledCycleClock::Frequency() {
>+  return base_internal::NominalCPUFrequency();
>+}
>+
>+#elif defined(__powerpc__) || defined(__ppc__)
>+
>+int64_t UnscaledCycleClock::Now() {
>+  return __ppc_get_timebase();
>+}
>+
>+double UnscaledCycleClock::Frequency() {
>+  return __ppc_get_timebase_freq();
>+}
>+
>+#elif defined(__aarch64__)
>+
>+// System timer of ARMv8 runs at a different frequency than the CPU's.
>+// The frequency is fixed, typically in the range 1-50MHz.  It can be
>+// read at CNTFRQ special register.  We assume the OS has set up
>+// the virtual timer properly.
>+int64_t UnscaledCycleClock::Now() {
>+  int64_t virtual_timer_value;
>+  asm volatile("mrs %0, cntvct_el0" : "=r"(virtual_timer_value));
>+  return virtual_timer_value;
>+}
>+
>+double UnscaledCycleClock::Frequency() {
>+  uint64_t aarch64_timer_frequency;
>+  asm volatile("mrs %0, cntfrq_el0" : "=r"(aarch64_timer_frequency));
>+  return aarch64_timer_frequency;
>+}
>+
>+#elif defined(_M_IX86) || defined(_M_X64)
>+
>+#pragma intrinsic(__rdtsc)
>+
>+int64_t UnscaledCycleClock::Now() {
>+  return __rdtsc();
>+}
>+
>+double UnscaledCycleClock::Frequency() {
>+  return base_internal::NominalCPUFrequency();
>+}
>+
>+#endif
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_USE_UNSCALED_CYCLECLOCK
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..049f1cace9811a5cf20570f95953983518e1dd5e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.h
>@@ -0,0 +1,119 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// UnscaledCycleClock
>+//    An UnscaledCycleClock yields the value and frequency of a cycle counter
>+//    that increments at a rate that is approximately constant.
>+//    This class is for internal / whitelisted use only, you should consider
>+//    using CycleClock instead.
>+//
>+// Notes:
>+// The cycle counter frequency is not necessarily the core clock frequency.
>+// That is, CycleCounter cycles are not necessarily "CPU cycles".
>+//
>+// An arbitrary offset may have been added to the counter at power on.
>+//
>+// On some platforms, the rate and offset of the counter may differ
>+// slightly when read from different CPUs of a multiprocessor.  Usually,
>+// we try to ensure that the operating system adjusts values periodically
>+// so that values agree approximately.   If you need stronger guarantees,
>+// consider using alternate interfaces.
>+//
>+// The CPU is not required to maintain the ordering of a cycle counter read
>+// with respect to surrounding instructions.
>+
>+#ifndef ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_
>+#define ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_
>+
>+#include <cstdint>
>+
>+#if defined(__APPLE__)
>+#include <TargetConditionals.h>
>+#endif
>+
>+#include "absl/base/port.h"
>+
>+// The following platforms have an implementation of a hardware counter.
>+#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
>+  defined(__powerpc__) || defined(__ppc__) || \
>+  defined(_M_IX86) || defined(_M_X64)
>+#define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 1
>+#else
>+#define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 0
>+#endif
>+
>+// The following platforms often disable access to the hardware
>+// counter (through a sandbox) even if the underlying hardware has a
>+// usable counter. The CycleTimer interface also requires a *scaled*
>+// CycleClock that runs at atleast 1 MHz. We've found some Android
>+// ARM64 devices where this is not the case, so we disable it by
>+// default on Android ARM64.
>+#if defined(__native_client__) || TARGET_OS_IPHONE || \
>+    (defined(__ANDROID__) && defined(__aarch64__))
>+#define ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT 0
>+#else
>+#define ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT 1
>+#endif
>+
>+// UnscaledCycleClock is an optional internal feature.
>+// Use "#if ABSL_USE_UNSCALED_CYCLECLOCK" to test for its presence.
>+// Can be overridden at compile-time via -DABSL_USE_UNSCALED_CYCLECLOCK=0|1
>+#if !defined(ABSL_USE_UNSCALED_CYCLECLOCK)
>+#define ABSL_USE_UNSCALED_CYCLECLOCK               \
>+  (ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION && \
>+   ABSL_USE_UNSCALED_CYCLECLOCK_DEFAULT)
>+#endif
>+
>+#if ABSL_USE_UNSCALED_CYCLECLOCK
>+
>+// This macro can be used to test if UnscaledCycleClock::Frequency()
>+// is NominalCPUFrequency() on a particular platform.
>+#if  (defined(__i386__) || defined(__x86_64__) || \
>+      defined(_M_IX86) || defined(_M_X64))
>+#define ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY
>+#endif
>+namespace absl {
>+namespace time_internal {
>+class UnscaledCycleClockWrapperForGetCurrentTime;
>+}  // namespace time_internal
>+
>+namespace base_internal {
>+class CycleClock;
>+class UnscaledCycleClockWrapperForInitializeFrequency;
>+
>+class UnscaledCycleClock {
>+ private:
>+  UnscaledCycleClock() = delete;
>+
>+  // Return the value of a cycle counter that counts at a rate that is
>+  // approximately constant.
>+  static int64_t Now();
>+
>+  // Return the how much UnscaledCycleClock::Now() increases per second.
>+  // This is not necessarily the core CPU clock frequency.
>+  // It may be the nominal value report by the kernel, rather than a measured
>+  // value.
>+  static double Frequency();
>+
>+  // Whitelisted friends.
>+  friend class base_internal::CycleClock;
>+  friend class time_internal::UnscaledCycleClockWrapperForGetCurrentTime;
>+  friend class base_internal::UnscaledCycleClockWrapperForInitializeFrequency;
>+};
>+
>+}  // namespace base_internal
>+}  // namespace absl
>+#endif  // ABSL_USE_UNSCALED_CYCLECLOCK
>+
>+#endif  // ABSL_BASE_INTERNAL_UNSCALEDCYCLECLOCK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/invoke_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/invoke_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..466bf114a58dc176e72180911ec9b6b392c288e7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/invoke_test.cc
>@@ -0,0 +1,200 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/invoke.h"
>+
>+#include <functional>
>+#include <memory>
>+#include <string>
>+#include <utility>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/memory/memory.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace absl {
>+namespace base_internal {
>+namespace {
>+
>+int Function(int a, int b) { return a - b; }
>+
>+int Sink(std::unique_ptr<int> p) {
>+  return *p;
>+}
>+
>+std::unique_ptr<int> Factory(int n) {
>+  return make_unique<int>(n);
>+}
>+
>+void NoOp() {}
>+
>+struct ConstFunctor {
>+  int operator()(int a, int b) const { return a - b; }
>+};
>+
>+struct MutableFunctor {
>+  int operator()(int a, int b) { return a - b; }
>+};
>+
>+struct EphemeralFunctor {
>+  int operator()(int a, int b) && { return a - b; }
>+};
>+
>+struct OverloadedFunctor {
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) & {
>+    return StrCat("&", args...);
>+  }
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) const& {
>+    return StrCat("const&", args...);
>+  }
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) && {
>+    return StrCat("&&", args...);
>+  }
>+};
>+
>+struct Class {
>+  int Method(int a, int b) { return a - b; }
>+  int ConstMethod(int a, int b) const { return a - b; }
>+
>+  int member;
>+};
>+
>+struct FlipFlop {
>+  int ConstMethod() const { return member; }
>+  FlipFlop operator*() const { return {-member}; }
>+
>+  int member;
>+};
>+
>+// CallMaybeWithArg(f) resolves either to Invoke(f) or Invoke(f, 42), depending
>+// on which one is valid.
>+template <typename F>
>+decltype(Invoke(std::declval<const F&>())) CallMaybeWithArg(const F& f) {
>+  return Invoke(f);
>+}
>+
>+template <typename F>
>+decltype(Invoke(std::declval<const F&>(), 42)) CallMaybeWithArg(const F& f) {
>+  return Invoke(f, 42);
>+}
>+
>+TEST(InvokeTest, Function) {
>+  EXPECT_EQ(1, Invoke(Function, 3, 2));
>+  EXPECT_EQ(1, Invoke(&Function, 3, 2));
>+}
>+
>+TEST(InvokeTest, NonCopyableArgument) {
>+  EXPECT_EQ(42, Invoke(Sink, make_unique<int>(42)));
>+}
>+
>+TEST(InvokeTest, NonCopyableResult) {
>+  EXPECT_THAT(Invoke(Factory, 42), ::testing::Pointee(42));
>+}
>+
>+TEST(InvokeTest, VoidResult) {
>+  Invoke(NoOp);
>+}
>+
>+TEST(InvokeTest, ConstFunctor) {
>+  EXPECT_EQ(1, Invoke(ConstFunctor(), 3, 2));
>+}
>+
>+TEST(InvokeTest, MutableFunctor) {
>+  MutableFunctor f;
>+  EXPECT_EQ(1, Invoke(f, 3, 2));
>+  EXPECT_EQ(1, Invoke(MutableFunctor(), 3, 2));
>+}
>+
>+TEST(InvokeTest, EphemeralFunctor) {
>+  EphemeralFunctor f;
>+  EXPECT_EQ(1, Invoke(std::move(f), 3, 2));
>+  EXPECT_EQ(1, Invoke(EphemeralFunctor(), 3, 2));
>+}
>+
>+TEST(InvokeTest, OverloadedFunctor) {
>+  OverloadedFunctor f;
>+  const OverloadedFunctor& cf = f;
>+
>+  EXPECT_EQ("&", Invoke(f));
>+  EXPECT_EQ("& 42", Invoke(f, " 42"));
>+
>+  EXPECT_EQ("const&", Invoke(cf));
>+  EXPECT_EQ("const& 42", Invoke(cf, " 42"));
>+
>+  EXPECT_EQ("&&", Invoke(std::move(f)));
>+  EXPECT_EQ("&& 42", Invoke(std::move(f), " 42"));
>+}
>+
>+TEST(InvokeTest, ReferenceWrapper) {
>+  ConstFunctor cf;
>+  MutableFunctor mf;
>+  EXPECT_EQ(1, Invoke(std::cref(cf), 3, 2));
>+  EXPECT_EQ(1, Invoke(std::ref(cf), 3, 2));
>+  EXPECT_EQ(1, Invoke(std::ref(mf), 3, 2));
>+}
>+
>+TEST(InvokeTest, MemberFunction) {
>+  std::unique_ptr<Class> p(new Class);
>+  std::unique_ptr<const Class> cp(new Class);
>+  EXPECT_EQ(1, Invoke(&Class::Method, p, 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::Method, p.get(), 3, 2));
>+
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, p, 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, p.get(), 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, *p, 3, 2));
>+
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, cp, 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, cp.get(), 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, *cp, 3, 2));
>+
>+  EXPECT_EQ(1, Invoke(&Class::Method, make_unique<Class>(), 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, make_unique<Class>(), 3, 2));
>+  EXPECT_EQ(1, Invoke(&Class::ConstMethod, make_unique<const Class>(), 3, 2));
>+}
>+
>+TEST(InvokeTest, DataMember) {
>+  std::unique_ptr<Class> p(new Class{42});
>+  std::unique_ptr<const Class> cp(new Class{42});
>+  EXPECT_EQ(42, Invoke(&Class::member, p));
>+  EXPECT_EQ(42, Invoke(&Class::member, *p));
>+  EXPECT_EQ(42, Invoke(&Class::member, p.get()));
>+
>+  Invoke(&Class::member, p) = 42;
>+  Invoke(&Class::member, p.get()) = 42;
>+
>+  EXPECT_EQ(42, Invoke(&Class::member, cp));
>+  EXPECT_EQ(42, Invoke(&Class::member, *cp));
>+  EXPECT_EQ(42, Invoke(&Class::member, cp.get()));
>+}
>+
>+TEST(InvokeTest, FlipFlop) {
>+  FlipFlop obj = {42};
>+  // This call could resolve to (obj.*&FlipFlop::ConstMethod)() or
>+  // ((*obj).*&FlipFlop::ConstMethod)(). We verify that it's the former.
>+  EXPECT_EQ(42, Invoke(&FlipFlop::ConstMethod, obj));
>+  EXPECT_EQ(42, Invoke(&FlipFlop::member, obj));
>+}
>+
>+TEST(InvokeTest, SfinaeFriendly) {
>+  CallMaybeWithArg(NoOp);
>+  EXPECT_THAT(CallMaybeWithArg(Factory), ::testing::Pointee(42));
>+}
>+
>+}  // namespace
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/log_severity.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/log_severity.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e2931c34d1df54a7bbf7ed71de858503362c7337
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/log_severity.h
>@@ -0,0 +1,67 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
>+#define ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
>+
>+#include <array>
>+
>+#include "absl/base/attributes.h"
>+
>+namespace absl {
>+
>+// Four severity levels are defined.  Logging APIs should terminate the program
>+// when a message is logged at severity `kFatal`; the other levels have no
>+// special semantics.
>+enum class LogSeverity : int {
>+  kInfo = 0,
>+  kWarning = 1,
>+  kError = 2,
>+  kFatal = 3,
>+};
>+
>+// Returns an iterable of all standard `absl::LogSeverity` values, ordered from
>+// least to most severe.
>+constexpr std::array<absl::LogSeverity, 4> LogSeverities() {
>+  return {{absl::LogSeverity::kInfo, absl::LogSeverity::kWarning,
>+           absl::LogSeverity::kError, absl::LogSeverity::kFatal}};
>+}
>+
>+// Returns the all-caps std::string representation (e.g. "INFO") of the specified
>+// severity level if it is one of the normal levels and "UNKNOWN" otherwise.
>+constexpr const char* LogSeverityName(absl::LogSeverity s) {
>+  return s == absl::LogSeverity::kInfo
>+             ? "INFO"
>+             : s == absl::LogSeverity::kWarning
>+                   ? "WARNING"
>+                   : s == absl::LogSeverity::kError
>+                         ? "ERROR"
>+                         : s == absl::LogSeverity::kFatal ? "FATAL" : "UNKNOWN";
>+}
>+
>+// Values less than `kInfo` normalize to `kInfo`; values greater than `kFatal`
>+// normalize to `kError` (**NOT** `kFatal`).
>+constexpr absl::LogSeverity NormalizeLogSeverity(absl::LogSeverity s) {
>+  return s < absl::LogSeverity::kInfo
>+             ? absl::LogSeverity::kInfo
>+             : s > absl::LogSeverity::kFatal ? absl::LogSeverity::kError : s;
>+}
>+constexpr absl::LogSeverity NormalizeLogSeverity(int s) {
>+  return NormalizeLogSeverity(static_cast<absl::LogSeverity>(s));
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_BASE_INTERNAL_LOG_SEVERITY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/macros.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/macros.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..ca3d5edb6536506f68274167e3a313d51cc0e313
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/macros.h
>@@ -0,0 +1,202 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: macros.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines the set of language macros used within Abseil code.
>+// For the set of macros used to determine supported compilers and platforms,
>+// see absl/base/config.h instead.
>+//
>+// This code is compiled directly on many platforms, including client
>+// platforms like Windows, Mac, and embedded systems.  Before making
>+// any changes here, make sure that you're not breaking any platforms.
>+//
>+
>+#ifndef ABSL_BASE_MACROS_H_
>+#define ABSL_BASE_MACROS_H_
>+
>+#include <cassert>
>+#include <cstddef>
>+
>+#include "absl/base/port.h"
>+
>+// ABSL_ARRAYSIZE()
>+//
>+// Returns the number of elements in an array as a compile-time constant, which
>+// can be used in defining new arrays. If you use this macro on a pointer by
>+// mistake, you will get a compile-time error.
>+#define ABSL_ARRAYSIZE(array) \
>+  (sizeof(::absl::macros_internal::ArraySizeHelper(array)))
>+
>+namespace absl {
>+namespace macros_internal {
>+// Note: this internal template function declaration is used by ABSL_ARRAYSIZE.
>+// The function doesn't need a definition, as we only use its type.
>+template <typename T, size_t N>
>+auto ArraySizeHelper(const T (&array)[N]) -> char (&)[N];
>+}  // namespace macros_internal
>+}  // namespace absl
>+
>+// kLinkerInitialized
>+//
>+// An enum used only as a constructor argument to indicate that a variable has
>+// static storage duration, and that the constructor should do nothing to its
>+// state. Use of this macro indicates to the reader that it is legal to
>+// declare a static instance of the class, provided the constructor is given
>+// the absl::base_internal::kLinkerInitialized argument.
>+//
>+// Normally, it is unsafe to declare a static variable that has a constructor or
>+// a destructor because invocation order is undefined. However, if the type can
>+// be zero-initialized (which the loader does for static variables) into a valid
>+// state and the type's destructor does not affect storage, then a constructor
>+// for static initialization can be declared.
>+//
>+// Example:
>+//       // Declaration
>+//       explicit MyClass(absl::base_internal:LinkerInitialized x) {}
>+//
>+//       // Invocation
>+//       static MyClass my_global(absl::base_internal::kLinkerInitialized);
>+namespace absl {
>+namespace base_internal {
>+enum LinkerInitialized {
>+  kLinkerInitialized = 0,
>+};
>+}  // namespace base_internal
>+}  // namespace absl
>+
>+// ABSL_FALLTHROUGH_INTENDED
>+//
>+// Annotates implicit fall-through between switch labels, allowing a case to
>+// indicate intentional fallthrough and turn off warnings about any lack of a
>+// `break` statement. The ABSL_FALLTHROUGH_INTENDED macro should be followed by
>+// a semicolon and can be used in most places where `break` can, provided that
>+// no statements exist between it and the next switch label.
>+//
>+// Example:
>+//
>+//  switch (x) {
>+//    case 40:
>+//    case 41:
>+//      if (truth_is_out_there) {
>+//        ++x;
>+//        ABSL_FALLTHROUGH_INTENDED;  // Use instead of/along with annotations
>+//                                    // in comments
>+//      } else {
>+//        return x;
>+//      }
>+//    case 42:
>+//      ...
>+//
>+// Notes: when compiled with clang in C++11 mode, the ABSL_FALLTHROUGH_INTENDED
>+// macro is expanded to the [[clang::fallthrough]] attribute, which is analysed
>+// when  performing switch labels fall-through diagnostic
>+// (`-Wimplicit-fallthrough`). See clang documentation on language extensions
>+// for details:
>+// http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough
>+//
>+// When used with unsupported compilers, the ABSL_FALLTHROUGH_INTENDED macro
>+// has no effect on diagnostics. In any case this macro has no effect on runtime
>+// behavior and performance of code.
>+#ifdef ABSL_FALLTHROUGH_INTENDED
>+#error "ABSL_FALLTHROUGH_INTENDED should not be defined."
>+#endif
>+
>+// TODO(zhangxy): Use c++17 standard [[fallthrough]] macro, when supported.
>+#if defined(__clang__) && defined(__has_warning)
>+#if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough")
>+#define ABSL_FALLTHROUGH_INTENDED [[clang::fallthrough]]
>+#endif
>+#elif defined(__GNUC__) && __GNUC__ >= 7
>+#define ABSL_FALLTHROUGH_INTENDED [[gnu::fallthrough]]
>+#endif
>+
>+#ifndef ABSL_FALLTHROUGH_INTENDED
>+#define ABSL_FALLTHROUGH_INTENDED \
>+  do {                            \
>+  } while (0)
>+#endif
>+
>+// ABSL_DEPRECATED()
>+//
>+// Marks a deprecated class, struct, enum, function, method and variable
>+// declarations. The macro argument is used as a custom diagnostic message (e.g.
>+// suggestion of a better alternative).
>+//
>+// Example:
>+//
>+//   class ABSL_DEPRECATED("Use Bar instead") Foo {...};
>+//   ABSL_DEPRECATED("Use Baz instead") void Bar() {...}
>+//
>+// Every usage of a deprecated entity will trigger a warning when compiled with
>+// clang's `-Wdeprecated-declarations` option. This option is turned off by
>+// default, but the warnings will be reported by clang-tidy.
>+#if defined(__clang__) && __cplusplus >= 201103L
>+#define ABSL_DEPRECATED(message) __attribute__((deprecated(message)))
>+#endif
>+
>+#ifndef ABSL_DEPRECATED
>+#define ABSL_DEPRECATED(message)
>+#endif
>+
>+// ABSL_BAD_CALL_IF()
>+//
>+// Used on a function overload to trap bad calls: any call that matches the
>+// overload will cause a compile-time error. This macro uses a clang-specific
>+// "enable_if" attribute, as described at
>+// http://clang.llvm.org/docs/AttributeReference.html#enable-if
>+//
>+// Overloads which use this macro should be bracketed by
>+// `#ifdef ABSL_BAD_CALL_IF`.
>+//
>+// Example:
>+//
>+//   int isdigit(int c);
>+//   #ifdef ABSL_BAD_CALL_IF
>+//   int isdigit(int c)
>+//     ABSL_BAD_CALL_IF(c <= -1 || c > 255,
>+//                       "'c' must have the value of an unsigned char or EOF");
>+//   #endif // ABSL_BAD_CALL_IF
>+
>+#if defined(__clang__)
>+# if __has_attribute(enable_if)
>+#  define ABSL_BAD_CALL_IF(expr, msg) \
>+    __attribute__((enable_if(expr, "Bad call trap"), unavailable(msg)))
>+# endif
>+#endif
>+
>+// ABSL_ASSERT()
>+//
>+// In C++11, `assert` can't be used portably within constexpr functions.
>+// ABSL_ASSERT functions as a runtime assert but works in C++11 constexpr
>+// functions.  Example:
>+//
>+// constexpr double Divide(double a, double b) {
>+//   return ABSL_ASSERT(b != 0), a / b;
>+// }
>+//
>+// This macro is inspired by
>+// https://akrzemi1.wordpress.com/2017/05/18/asserts-in-constexpr-functions/
>+#if defined(NDEBUG)
>+#define ABSL_ASSERT(expr) (false ? (void)(expr) : (void)0)
>+#else
>+#define ABSL_ASSERT(expr)              \
>+  (ABSL_PREDICT_TRUE((expr)) ? (void)0 \
>+                             : [] { assert(false && #expr); }())  // NOLINT
>+#endif
>+
>+#endif  // ABSL_BASE_MACROS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/optimization.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/optimization.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2fddfc800c1ddd5ea3776e4892bd2ab40911516c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/optimization.h
>@@ -0,0 +1,165 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: optimization.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines portable macros for performance optimization.
>+
>+#ifndef ABSL_BASE_OPTIMIZATION_H_
>+#define ABSL_BASE_OPTIMIZATION_H_
>+
>+#include "absl/base/config.h"
>+
>+// ABSL_BLOCK_TAIL_CALL_OPTIMIZATION
>+//
>+// Instructs the compiler to avoid optimizing tail-call recursion. Use of this
>+// macro is useful when you wish to preserve the existing function order within
>+// a stack trace for logging, debugging, or profiling purposes.
>+//
>+// Example:
>+//
>+//   int f() {
>+//     int result = g();
>+//     ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
>+//     return result;
>+//   }
>+#if defined(__pnacl__)
>+#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; }
>+#elif defined(__clang__)
>+// Clang will not tail call given inline volatile assembly.
>+#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("")
>+#elif defined(__GNUC__)
>+// GCC will not tail call given inline volatile assembly.
>+#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __asm__ __volatile__("")
>+#elif defined(_MSC_VER)
>+#include <intrin.h>
>+// The __nop() intrinsic blocks the optimisation.
>+#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() __nop()
>+#else
>+#define ABSL_BLOCK_TAIL_CALL_OPTIMIZATION() if (volatile int x = 0) { (void)x; }
>+#endif
>+
>+// ABSL_CACHELINE_SIZE
>+//
>+// Explicitly defines the size of the L1 cache for purposes of alignment.
>+// Setting the cacheline size allows you to specify that certain objects be
>+// aligned on a cacheline boundary with `ABSL_CACHELINE_ALIGNED` declarations.
>+// (See below.)
>+//
>+// NOTE: this macro should be replaced with the following C++17 features, when
>+// those are generally available:
>+//
>+//   * `std::hardware_constructive_interference_size`
>+//   * `std::hardware_destructive_interference_size`
>+//
>+// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0154r1.html
>+// for more information.
>+#if defined(__GNUC__)
>+// Cache line alignment
>+#if defined(__i386__) || defined(__x86_64__)
>+#define ABSL_CACHELINE_SIZE 64
>+#elif defined(__powerpc64__)
>+#define ABSL_CACHELINE_SIZE 128
>+#elif defined(__aarch64__)
>+// We would need to read special register ctr_el0 to find out L1 dcache size.
>+// This value is a good estimate based on a real aarch64 machine.
>+#define ABSL_CACHELINE_SIZE 64
>+#elif defined(__arm__)
>+// Cache line sizes for ARM: These values are not strictly correct since
>+// cache line sizes depend on implementations, not architectures.  There
>+// are even implementations with cache line sizes configurable at boot
>+// time.
>+#if defined(__ARM_ARCH_5T__)
>+#define ABSL_CACHELINE_SIZE 32
>+#elif defined(__ARM_ARCH_7A__)
>+#define ABSL_CACHELINE_SIZE 64
>+#endif
>+#endif
>+
>+#ifndef ABSL_CACHELINE_SIZE
>+// A reasonable default guess.  Note that overestimates tend to waste more
>+// space, while underestimates tend to waste more time.
>+#define ABSL_CACHELINE_SIZE 64
>+#endif
>+
>+// ABSL_CACHELINE_ALIGNED
>+//
>+// Indicates that the declared object be cache aligned using
>+// `ABSL_CACHELINE_SIZE` (see above). Cacheline aligning objects allows you to
>+// load a set of related objects in the L1 cache for performance improvements.
>+// Cacheline aligning objects properly allows constructive memory sharing and
>+// prevents destructive (or "false") memory sharing.
>+//
>+// NOTE: this macro should be replaced with usage of `alignas()` using
>+// `std::hardware_constructive_interference_size` and/or
>+// `std::hardware_destructive_interference_size` when available within C++17.
>+//
>+// See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0154r1.html
>+// for more information.
>+//
>+// On some compilers, `ABSL_CACHELINE_ALIGNED` expands to
>+// `__attribute__((aligned(ABSL_CACHELINE_SIZE)))`. For compilers where this is
>+// not known to work, the macro expands to nothing.
>+//
>+// No further guarantees are made here. The result of applying the macro
>+// to variables and types is always implementation-defined.
>+//
>+// WARNING: It is easy to use this attribute incorrectly, even to the point
>+// of causing bugs that are difficult to diagnose, crash, etc. It does not
>+// of itself guarantee that objects are aligned to a cache line.
>+//
>+// Recommendations:
>+//
>+// 1) Consult compiler documentation; this comment is not kept in sync as
>+//    toolchains evolve.
>+// 2) Verify your use has the intended effect. This often requires inspecting
>+//    the generated machine code.
>+// 3) Prefer applying this attribute to individual variables. Avoid
>+//    applying it to types. This tends to localize the effect.
>+#define ABSL_CACHELINE_ALIGNED __attribute__((aligned(ABSL_CACHELINE_SIZE)))
>+
>+#else  // not GCC
>+#define ABSL_CACHELINE_SIZE 64
>+#define ABSL_CACHELINE_ALIGNED
>+#endif
>+
>+// ABSL_PREDICT_TRUE, ABSL_PREDICT_FALSE
>+//
>+// Enables the compiler to prioritize compilation using static analysis for
>+// likely paths within a boolean branch.
>+//
>+// Example:
>+//
>+//   if (ABSL_PREDICT_TRUE(expression)) {
>+//     return result;                        // Faster if more likely
>+//   } else {
>+//     return 0;
>+//   }
>+//
>+// Compilers can use the information that a certain branch is not likely to be
>+// taken (for instance, a CHECK failure) to optimize for the common case in
>+// the absence of better information (ie. compiling gcc with `-fprofile-arcs`).
>+#if ABSL_HAVE_BUILTIN(__builtin_expect) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_PREDICT_FALSE(x) (__builtin_expect(x, 0))
>+#define ABSL_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
>+#else
>+#define ABSL_PREDICT_FALSE(x) (x)
>+#define ABSL_PREDICT_TRUE(x) (x)
>+#endif
>+
>+#endif  // ABSL_BASE_OPTIMIZATION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/policy_checks.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/policy_checks.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..0a07fc035e1526cd916beab6ffc034a9e6706b2f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/policy_checks.h
>@@ -0,0 +1,121 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: policy_checks.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header enforces a minimum set of policies at build time, such as the
>+// supported compiler and library versions. Unsupported configurations are
>+// reported with `#error`. This enforcement is best effort, so successfully
>+// compiling this header does not guarantee a supported configuration.
>+
>+#ifndef ABSL_BASE_POLICY_CHECKS_H_
>+#define ABSL_BASE_POLICY_CHECKS_H_
>+
>+// Included for the __GLIBC_PREREQ macro used below.
>+#include <limits.h>
>+
>+// Included for the _STLPORT_VERSION macro used below.
>+#if defined(__cplusplus)
>+#include <cstddef>
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Operating System Check
>+// -----------------------------------------------------------------------------
>+
>+#if defined(__CYGWIN__)
>+#error "Cygwin is not supported."
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Compiler Check
>+// -----------------------------------------------------------------------------
>+
>+// We support MSVC++ 14.0 update 2 and later.
>+// This minimum will go up.
>+#if defined(_MSC_FULL_VER) && _MSC_FULL_VER < 190023918 && !defined(__clang__)
>+#error "This package requires Visual Studio 2015 Update 2 or higher."
>+#endif
>+
>+// We support gcc 4.7 and later.
>+// This minimum will go up.
>+#if defined(__GNUC__) && !defined(__clang__)
>+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
>+#error "This package requires gcc 4.7 or higher."
>+#endif
>+#endif
>+
>+// We support Apple Xcode clang 4.2.1 (version 421.11.65) and later.
>+// This corresponds to Apple Xcode version 4.5.
>+// This minimum will go up.
>+#if defined(__apple_build_version__) && __apple_build_version__ < 4211165
>+#error "This package requires __apple_build_version__ of 4211165 or higher."
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// C++ Version Check
>+// -----------------------------------------------------------------------------
>+
>+// Enforce C++11 as the minimum.  Note that Visual Studio has not
>+// advanced __cplusplus despite being good enough for our purposes, so
>+// so we exempt it from the check.
>+#if defined(__cplusplus) && !defined(_MSC_VER)
>+#if __cplusplus < 201103L
>+#error "C++ versions less than C++11 are not supported."
>+#endif
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Standard Library Check
>+// -----------------------------------------------------------------------------
>+
>+// We have chosen glibc 2.12 as the minimum as it was tagged for release
>+// in May, 2010 and includes some functionality used in Google software
>+// (for instance pthread_setname_np):
>+// https://sourceware.org/ml/libc-alpha/2010-05/msg00000.html
>+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
>+#if !__GLIBC_PREREQ(2, 12)
>+#error "Minimum required version of glibc is 2.12."
>+#endif
>+#endif
>+
>+#if defined(_STLPORT_VERSION)
>+#error "STLPort is not supported."
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// `char` Size Check
>+// -----------------------------------------------------------------------------
>+
>+// Abseil currently assumes CHAR_BIT == 8. If you would like to use Abseil on a
>+// platform where this is not the case, please provide us with the details about
>+// your platform so we can consider relaxing this requirement.
>+#if CHAR_BIT != 8
>+#error "Abseil assumes CHAR_BIT == 8."
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// `int` Size Check
>+// -----------------------------------------------------------------------------
>+
>+// Abseil currently assumes that an int is 4 bytes. If you would like to use
>+// Abseil on a platform where this is not the case, please provide us with the
>+// details about your platform so we can consider relaxing this requirement.
>+#if INT_MAX < 2147483647
>+#error "Abseil assumes that int is at least 4 bytes. "
>+#endif
>+
>+#endif  // ABSL_BASE_POLICY_CHECKS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/port.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/port.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..1c67257fd8f323eb172ac5ae2cb1b1e41f47d4f8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/port.h
>@@ -0,0 +1,26 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This files is a forwarding header for other headers containing various
>+// portability macros and functions.
>+// This file is used for both C and C++!
>+
>+#ifndef ABSL_BASE_PORT_H_
>+#define ABSL_BASE_PORT_H_
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/config.h"
>+#include "absl/base/optimization.h"
>+
>+#endif  // ABSL_BASE_PORT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/raw_logging_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/raw_logging_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ebbc5db906727f6cb2c03a63e99a897f5ceb5aa4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/raw_logging_test.cc
>@@ -0,0 +1,79 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This test serves primarily as a compilation test for base/raw_logging.h.
>+// Raw logging testing is covered by logging_unittest.cc, which is not as
>+// portable as this test.
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+#include <tuple>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+TEST(RawLoggingCompilationTest, Log) {
>+  ABSL_RAW_LOG(INFO, "RAW INFO: %d", 1);
>+  ABSL_RAW_LOG(INFO, "RAW INFO: %d %d", 1, 2);
>+  ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d", 1, 2, 3);
>+  ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d %d", 1, 2, 3, 4);
>+  ABSL_RAW_LOG(INFO, "RAW INFO: %d %d %d %d %d", 1, 2, 3, 4, 5);
>+  ABSL_RAW_LOG(WARNING, "RAW WARNING: %d", 1);
>+  ABSL_RAW_LOG(ERROR, "RAW ERROR: %d", 1);
>+}
>+
>+TEST(RawLoggingCompilationTest, PassingCheck) {
>+  ABSL_RAW_CHECK(true, "RAW CHECK");
>+}
>+
>+// Not all platforms support output from raw log, so we don't verify any
>+// particular output for RAW check failures (expecting the empty std::string
>+// accomplishes this).  This test is primarily a compilation test, but we
>+// are verifying process death when EXPECT_DEATH works for a platform.
>+const char kExpectedDeathOutput[] = "";
>+
>+TEST(RawLoggingDeathTest, FailingCheck) {
>+  EXPECT_DEATH_IF_SUPPORTED(ABSL_RAW_CHECK(1 == 0, "explanation"),
>+                            kExpectedDeathOutput);
>+}
>+
>+TEST(RawLoggingDeathTest, LogFatal) {
>+  EXPECT_DEATH_IF_SUPPORTED(ABSL_RAW_LOG(FATAL, "my dog has fleas"),
>+                            kExpectedDeathOutput);
>+}
>+
>+TEST(InternalLog, CompilationTest) {
>+  ABSL_INTERNAL_LOG(INFO, "Internal Log");
>+  std::string log_msg = "Internal Log";
>+  ABSL_INTERNAL_LOG(INFO, log_msg);
>+
>+  ABSL_INTERNAL_LOG(INFO, log_msg + " 2");
>+
>+  float d = 1.1f;
>+  ABSL_INTERNAL_LOG(INFO, absl::StrCat("Internal log ", 3, " + ", d));
>+}
>+
>+TEST(InternalLogDeathTest, FailingCheck) {
>+  EXPECT_DEATH_IF_SUPPORTED(ABSL_INTERNAL_CHECK(1 == 0, "explanation"),
>+                            kExpectedDeathOutput);
>+}
>+
>+TEST(InternalLogDeathTest, LogFatal) {
>+  EXPECT_DEATH_IF_SUPPORTED(ABSL_INTERNAL_LOG(FATAL, "my dog has fleas"),
>+                            kExpectedDeathOutput);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/spinlock_test_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/spinlock_test_common.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1b508848611e6c1e063c815856a9a78c34fc451e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/spinlock_test_common.cc
>@@ -0,0 +1,266 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// A bunch of threads repeatedly hash an array of ints protected by a
>+// spinlock.  If the spinlock is working properly, all elements of the
>+// array should be equal at the end of the test.
>+
>+#include <cstdint>
>+#include <limits>
>+#include <random>
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/low_level_scheduling.h"
>+#include "absl/base/internal/scheduling_mode.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/internal/sysinfo.h"
>+#include "absl/base/macros.h"
>+#include "absl/synchronization/blocking_counter.h"
>+#include "absl/synchronization/notification.h"
>+
>+constexpr int32_t kNumThreads = 10;
>+constexpr int32_t kIters = 1000;
>+
>+namespace absl {
>+namespace base_internal {
>+
>+// This is defined outside of anonymous namespace so that it can be
>+// a friend of SpinLock to access protected methods for testing.
>+struct SpinLockTest {
>+  static uint32_t EncodeWaitCycles(int64_t wait_start_time,
>+                                   int64_t wait_end_time) {
>+    return SpinLock::EncodeWaitCycles(wait_start_time, wait_end_time);
>+  }
>+  static uint64_t DecodeWaitCycles(uint32_t lock_value) {
>+    return SpinLock::DecodeWaitCycles(lock_value);
>+  }
>+};
>+
>+namespace {
>+
>+static constexpr int kArrayLength = 10;
>+static uint32_t values[kArrayLength];
>+static SpinLock static_spinlock(base_internal::kLinkerInitialized);
>+static SpinLock static_cooperative_spinlock(
>+    base_internal::kLinkerInitialized,
>+    base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL);
>+static SpinLock static_noncooperative_spinlock(
>+    base_internal::kLinkerInitialized, base_internal::SCHEDULE_KERNEL_ONLY);
>+
>+
>+// Simple integer hash function based on the public domain lookup2 hash.
>+// http://burtleburtle.net/bob/c/lookup2.c
>+static uint32_t Hash32(uint32_t a, uint32_t c) {
>+  uint32_t b = 0x9e3779b9UL;  // The golden ratio; an arbitrary value.
>+  a -= b; a -= c; a ^= (c >> 13);
>+  b -= c; b -= a; b ^= (a << 8);
>+  c -= a; c -= b; c ^= (b >> 13);
>+  a -= b; a -= c; a ^= (c >> 12);
>+  b -= c; b -= a; b ^= (a << 16);
>+  c -= a; c -= b; c ^= (b >> 5);
>+  a -= b; a -= c; a ^= (c >> 3);
>+  b -= c; b -= a; b ^= (a << 10);
>+  c -= a; c -= b; c ^= (b >> 15);
>+  return c;
>+}
>+
>+static void TestFunction(int thread_salt, SpinLock* spinlock) {
>+  for (int i = 0; i < kIters; i++) {
>+    SpinLockHolder h(spinlock);
>+    for (int j = 0; j < kArrayLength; j++) {
>+      const int index = (j + thread_salt) % kArrayLength;
>+      values[index] = Hash32(values[index], thread_salt);
>+      std::this_thread::yield();
>+    }
>+  }
>+}
>+
>+static void ThreadedTest(SpinLock* spinlock) {
>+  std::vector<std::thread> threads;
>+  for (int i = 0; i < kNumThreads; ++i) {
>+    threads.push_back(std::thread(TestFunction, i, spinlock));
>+  }
>+  for (auto& thread : threads) {
>+    thread.join();
>+  }
>+
>+  SpinLockHolder h(spinlock);
>+  for (int i = 1; i < kArrayLength; i++) {
>+    EXPECT_EQ(values[0], values[i]);
>+  }
>+}
>+
>+TEST(SpinLock, StackNonCooperativeDisablesScheduling) {
>+  SpinLock spinlock(base_internal::SCHEDULE_KERNEL_ONLY);
>+  spinlock.Lock();
>+  EXPECT_FALSE(base_internal::SchedulingGuard::ReschedulingIsAllowed());
>+  spinlock.Unlock();
>+}
>+
>+TEST(SpinLock, StaticNonCooperativeDisablesScheduling) {
>+  static_noncooperative_spinlock.Lock();
>+  EXPECT_FALSE(base_internal::SchedulingGuard::ReschedulingIsAllowed());
>+  static_noncooperative_spinlock.Unlock();
>+}
>+
>+TEST(SpinLock, WaitCyclesEncoding) {
>+  // These are implementation details not exported by SpinLock.
>+  const int kProfileTimestampShift = 7;
>+  const int kLockwordReservedShift = 3;
>+  const uint32_t kSpinLockSleeper = 8;
>+
>+  // We should be able to encode up to (1^kMaxCycleBits - 1) without clamping
>+  // but the lower kProfileTimestampShift will be dropped.
>+  const int kMaxCyclesShift =
>+    32 - kLockwordReservedShift + kProfileTimestampShift;
>+  const uint64_t kMaxCycles = (int64_t{1} << kMaxCyclesShift) - 1;
>+
>+  // These bits should be zero after encoding.
>+  const uint32_t kLockwordReservedMask = (1 << kLockwordReservedShift) - 1;
>+
>+  // These bits are dropped when wait cycles are encoded.
>+  const uint64_t kProfileTimestampMask = (1 << kProfileTimestampShift) - 1;
>+
>+  // Test a bunch of random values
>+  std::default_random_engine generator;
>+  // Shift to avoid overflow below.
>+  std::uniform_int_distribution<uint64_t> time_distribution(
>+      0, std::numeric_limits<uint64_t>::max() >> 4);
>+  std::uniform_int_distribution<uint64_t> cycle_distribution(0, kMaxCycles);
>+
>+  for (int i = 0; i < 100; i++) {
>+    int64_t start_time = time_distribution(generator);
>+    int64_t cycles = cycle_distribution(generator);
>+    int64_t end_time = start_time + cycles;
>+    uint32_t lock_value = SpinLockTest::EncodeWaitCycles(start_time, end_time);
>+    EXPECT_EQ(0, lock_value & kLockwordReservedMask);
>+    uint64_t decoded = SpinLockTest::DecodeWaitCycles(lock_value);
>+    EXPECT_EQ(0, decoded & kProfileTimestampMask);
>+    EXPECT_EQ(cycles & ~kProfileTimestampMask, decoded);
>+  }
>+
>+  // Test corner cases
>+  int64_t start_time = time_distribution(generator);
>+  EXPECT_EQ(0, SpinLockTest::EncodeWaitCycles(start_time, start_time));
>+  EXPECT_EQ(0, SpinLockTest::DecodeWaitCycles(0));
>+  EXPECT_EQ(0, SpinLockTest::DecodeWaitCycles(kLockwordReservedMask));
>+  EXPECT_EQ(kMaxCycles & ~kProfileTimestampMask,
>+            SpinLockTest::DecodeWaitCycles(~kLockwordReservedMask));
>+
>+  // Check that we cannot produce kSpinLockSleeper during encoding.
>+  int64_t sleeper_cycles =
>+      kSpinLockSleeper << (kProfileTimestampShift - kLockwordReservedShift);
>+  uint32_t sleeper_value =
>+      SpinLockTest::EncodeWaitCycles(start_time, start_time + sleeper_cycles);
>+  EXPECT_NE(sleeper_value, kSpinLockSleeper);
>+
>+  // Test clamping
>+  uint32_t max_value =
>+    SpinLockTest::EncodeWaitCycles(start_time, start_time + kMaxCycles);
>+  uint64_t max_value_decoded = SpinLockTest::DecodeWaitCycles(max_value);
>+  uint64_t expected_max_value_decoded = kMaxCycles & ~kProfileTimestampMask;
>+  EXPECT_EQ(expected_max_value_decoded, max_value_decoded);
>+
>+  const int64_t step = (1 << kProfileTimestampShift);
>+  uint32_t after_max_value =
>+    SpinLockTest::EncodeWaitCycles(start_time, start_time + kMaxCycles + step);
>+  uint64_t after_max_value_decoded =
>+      SpinLockTest::DecodeWaitCycles(after_max_value);
>+  EXPECT_EQ(expected_max_value_decoded, after_max_value_decoded);
>+
>+  uint32_t before_max_value = SpinLockTest::EncodeWaitCycles(
>+      start_time, start_time + kMaxCycles - step);
>+  uint64_t before_max_value_decoded =
>+    SpinLockTest::DecodeWaitCycles(before_max_value);
>+  EXPECT_GT(expected_max_value_decoded, before_max_value_decoded);
>+}
>+TEST(SpinLockWithThreads, StaticSpinLock) {
>+  ThreadedTest(&static_spinlock);
>+}
>+TEST(SpinLockWithThreads, StackSpinLock) {
>+  SpinLock spinlock;
>+  ThreadedTest(&spinlock);
>+}
>+
>+TEST(SpinLockWithThreads, StackCooperativeSpinLock) {
>+  SpinLock spinlock(base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL);
>+  ThreadedTest(&spinlock);
>+}
>+
>+TEST(SpinLockWithThreads, StackNonCooperativeSpinLock) {
>+  SpinLock spinlock(base_internal::SCHEDULE_KERNEL_ONLY);
>+  ThreadedTest(&spinlock);
>+}
>+
>+TEST(SpinLockWithThreads, StaticCooperativeSpinLock) {
>+  ThreadedTest(&static_cooperative_spinlock);
>+}
>+
>+TEST(SpinLockWithThreads, StaticNonCooperativeSpinLock) {
>+  ThreadedTest(&static_noncooperative_spinlock);
>+}
>+
>+TEST(SpinLockWithThreads, DoesNotDeadlock) {
>+  struct Helper {
>+    static void NotifyThenLock(Notification* locked, SpinLock* spinlock,
>+                               BlockingCounter* b) {
>+      locked->WaitForNotification();  // Wait for LockThenWait() to hold "s".
>+      b->DecrementCount();
>+      SpinLockHolder l(spinlock);
>+    }
>+
>+    static void LockThenWait(Notification* locked, SpinLock* spinlock,
>+                             BlockingCounter* b) {
>+      SpinLockHolder l(spinlock);
>+      locked->Notify();
>+      b->Wait();
>+    }
>+
>+    static void DeadlockTest(SpinLock* spinlock, int num_spinners) {
>+      Notification locked;
>+      BlockingCounter counter(num_spinners);
>+      std::vector<std::thread> threads;
>+
>+      threads.push_back(
>+          std::thread(Helper::LockThenWait, &locked, spinlock, &counter));
>+      for (int i = 0; i < num_spinners; ++i) {
>+        threads.push_back(
>+            std::thread(Helper::NotifyThenLock, &locked, spinlock, &counter));
>+      }
>+
>+      for (auto& thread : threads) {
>+        thread.join();
>+      }
>+    }
>+  };
>+
>+  SpinLock stack_cooperative_spinlock(
>+      base_internal::SCHEDULE_COOPERATIVE_AND_KERNEL);
>+  SpinLock stack_noncooperative_spinlock(base_internal::SCHEDULE_KERNEL_ONLY);
>+  Helper::DeadlockTest(&stack_cooperative_spinlock,
>+                       base_internal::NumCPUs() * 2);
>+  Helper::DeadlockTest(&stack_noncooperative_spinlock,
>+                       base_internal::NumCPUs() * 2);
>+  Helper::DeadlockTest(&static_cooperative_spinlock,
>+                       base_internal::NumCPUs() * 2);
>+  Helper::DeadlockTest(&static_noncooperative_spinlock,
>+                       base_internal::NumCPUs() * 2);
>+}
>+
>+}  // namespace
>+}  // namespace base_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/thread_annotations.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/thread_annotations.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..fbb2797b825f5b25097347b849d2e62344c1ec28
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/thread_annotations.h
>@@ -0,0 +1,257 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: thread_annotations.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains macro definitions for thread safety annotations
>+// that allow developers to document the locking policies of multi-threaded
>+// code. The annotations can also help program analysis tools to identify
>+// potential thread safety issues.
>+//
>+//
>+// These annotations are implemented using compiler attributes. Using the macros
>+// defined here instead of raw attributes allow for portability and future
>+// compatibility.
>+//
>+// When referring to mutexes in the arguments of the attributes, you should
>+// use variable names or more complex expressions (e.g. my_object->mutex_)
>+// that evaluate to a concrete mutex object whenever possible. If the mutex
>+// you want to refer to is not in scope, you may use a member pointer
>+// (e.g. &MyClass::mutex_) to refer to a mutex in some (unknown) object.
>+
>+#ifndef ABSL_BASE_THREAD_ANNOTATIONS_H_
>+#define ABSL_BASE_THREAD_ANNOTATIONS_H_
>+#if defined(__clang__)
>+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   __attribute__((x))
>+#else
>+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   // no-op
>+#endif
>+
>+// GUARDED_BY()
>+//
>+// Documents if a shared field or global variable needs to be protected by a
>+// mutex. GUARDED_BY() allows the user to specify a particular mutex that
>+// should be held when accessing the annotated variable.
>+//
>+// Although this annotation (and PT_GUARDED_BY, below) cannot be applied to
>+// local variables, a local variable and its associated mutex can often be
>+// combined into a small class or struct, thereby allowing the annotation.
>+//
>+// Example:
>+//
>+//   class Foo {
>+//     Mutex mu_;
>+//     int p1_ GUARDED_BY(mu_);
>+//     ...
>+//   };
>+#define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
>+
>+// PT_GUARDED_BY()
>+//
>+// Documents if the memory location pointed to by a pointer should be guarded
>+// by a mutex when dereferencing the pointer.
>+//
>+// Example:
>+//   class Foo {
>+//     Mutex mu_;
>+//     int *p1_ PT_GUARDED_BY(mu_);
>+//     ...
>+//   };
>+//
>+// Note that a pointer variable to a shared memory location could itself be a
>+// shared variable.
>+//
>+// Example:
>+//
>+//   // `q_`, guarded by `mu1_`, points to a shared memory location that is
>+//   // guarded by `mu2_`:
>+//   int *q_ GUARDED_BY(mu1_) PT_GUARDED_BY(mu2_);
>+#define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
>+
>+// ACQUIRED_AFTER() / ACQUIRED_BEFORE()
>+//
>+// Documents the acquisition order between locks that can be held
>+// simultaneously by a thread. For any two locks that need to be annotated
>+// to establish an acquisition order, only one of them needs the annotation.
>+// (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER
>+// and ACQUIRED_BEFORE.)
>+//
>+// As with GUARDED_BY, this is only applicable to mutexes that are shared
>+// fields or global variables.
>+//
>+// Example:
>+//
>+//   Mutex m1_;
>+//   Mutex m2_ ACQUIRED_AFTER(m1_);
>+#define ACQUIRED_AFTER(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__))
>+
>+#define ACQUIRED_BEFORE(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__))
>+
>+// EXCLUSIVE_LOCKS_REQUIRED() / SHARED_LOCKS_REQUIRED()
>+//
>+// Documents a function that expects a mutex to be held prior to entry.
>+// The mutex is expected to be held both on entry to, and exit from, the
>+// function.
>+//
>+// Example:
>+//
>+//   Mutex mu1, mu2;
>+//   int a GUARDED_BY(mu1);
>+//   int b GUARDED_BY(mu2);
>+//
>+//   void foo() EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... };
>+#define EXCLUSIVE_LOCKS_REQUIRED(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__))
>+
>+#define SHARED_LOCKS_REQUIRED(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__))
>+
>+// LOCKS_EXCLUDED()
>+//
>+// Documents the locks acquired in the body of the function. These locks
>+// cannot be held when calling this function (as Abseil's `Mutex` locks are
>+// non-reentrant).
>+#define LOCKS_EXCLUDED(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__))
>+
>+// LOCK_RETURNED()
>+//
>+// Documents a function that returns a mutex without acquiring it.  For example,
>+// a public getter method that returns a pointer to a private mutex should
>+// be annotated with LOCK_RETURNED.
>+#define LOCK_RETURNED(x) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
>+
>+// LOCKABLE
>+//
>+// Documents if a class/type is a lockable type (such as the `Mutex` class).
>+#define LOCKABLE \
>+  THREAD_ANNOTATION_ATTRIBUTE__(lockable)
>+
>+// SCOPED_LOCKABLE
>+//
>+// Documents if a class does RAII locking (such as the `MutexLock` class).
>+// The constructor should use `LOCK_FUNCTION()` to specify the mutex that is
>+// acquired, and the destructor should use `UNLOCK_FUNCTION()` with no
>+// arguments; the analysis will assume that the destructor unlocks whatever the
>+// constructor locked.
>+#define SCOPED_LOCKABLE \
>+  THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
>+
>+// EXCLUSIVE_LOCK_FUNCTION()
>+//
>+// Documents functions that acquire a lock in the body of a function, and do
>+// not release it.
>+#define EXCLUSIVE_LOCK_FUNCTION(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
>+
>+// SHARED_LOCK_FUNCTION()
>+//
>+// Documents functions that acquire a shared (reader) lock in the body of a
>+// function, and do not release it.
>+#define SHARED_LOCK_FUNCTION(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
>+
>+// UNLOCK_FUNCTION()
>+//
>+// Documents functions that expect a lock to be held on entry to the function,
>+// and release it in the body of the function.
>+#define UNLOCK_FUNCTION(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
>+
>+// EXCLUSIVE_TRYLOCK_FUNCTION() / SHARED_TRYLOCK_FUNCTION()
>+//
>+// Documents functions that try to acquire a lock, and return success or failure
>+// (or a non-boolean value that can be interpreted as a boolean).
>+// The first argument should be `true` for functions that return `true` on
>+// success, or `false` for functions that return `false` on success. The second
>+// argument specifies the mutex that is locked on success. If unspecified, this
>+// mutex is assumed to be `this`.
>+#define EXCLUSIVE_TRYLOCK_FUNCTION(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
>+
>+#define SHARED_TRYLOCK_FUNCTION(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
>+
>+// ASSERT_EXCLUSIVE_LOCK() / ASSERT_SHARED_LOCK()
>+//
>+// Documents functions that dynamically check to see if a lock is held, and fail
>+// if it is not held.
>+#define ASSERT_EXCLUSIVE_LOCK(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__))
>+
>+#define ASSERT_SHARED_LOCK(...) \
>+  THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__))
>+
>+// NO_THREAD_SAFETY_ANALYSIS
>+//
>+// Turns off thread safety checking within the body of a particular function.
>+// This annotation is used to mark functions that are known to be correct, but
>+// the locking behavior is more complicated than the analyzer can handle.
>+#define NO_THREAD_SAFETY_ANALYSIS \
>+  THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
>+
>+//------------------------------------------------------------------------------
>+// Tool-Supplied Annotations
>+//------------------------------------------------------------------------------
>+
>+// TS_UNCHECKED should be placed around lock expressions that are not valid
>+// C++ syntax, but which are present for documentation purposes.  These
>+// annotations will be ignored by the analysis.
>+#define TS_UNCHECKED(x) ""
>+
>+// TS_FIXME is used to mark lock expressions that are not valid C++ syntax.
>+// It is used by automated tools to mark and disable invalid expressions.
>+// The annotation should either be fixed, or changed to TS_UNCHECKED.
>+#define TS_FIXME(x) ""
>+
>+// Like NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body of
>+// a particular function.  However, this attribute is used to mark functions
>+// that are incorrect and need to be fixed.  It is used by automated tools to
>+// avoid breaking the build when the analysis is updated.
>+// Code owners are expected to eventually fix the routine.
>+#define NO_THREAD_SAFETY_ANALYSIS_FIXME  NO_THREAD_SAFETY_ANALYSIS
>+
>+// Similar to NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a GUARDED_BY
>+// annotation that needs to be fixed, because it is producing thread safety
>+// warning.  It disables the GUARDED_BY.
>+#define GUARDED_BY_FIXME(x)
>+
>+// Disables warnings for a single read operation.  This can be used to avoid
>+// warnings when it is known that the read is not actually involved in a race,
>+// but the compiler cannot confirm that.
>+#define TS_UNCHECKED_READ(x) thread_safety_analysis::ts_unchecked_read(x)
>+
>+
>+namespace thread_safety_analysis {
>+
>+// Takes a reference to a guarded data member, and returns an unguarded
>+// reference.
>+template <typename T>
>+inline const T& ts_unchecked_read(const T& v) NO_THREAD_SAFETY_ANALYSIS {
>+  return v;
>+}
>+
>+template <typename T>
>+inline T& ts_unchecked_read(T& v) NO_THREAD_SAFETY_ANALYSIS {
>+  return v;
>+}
>+
>+}  // namespace thread_safety_analysis
>+
>+#endif  // ABSL_BASE_THREAD_ANNOTATIONS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/throw_delegate_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/throw_delegate_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0f15df0492b493fffecf4a85daf8290e10192375
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/base/throw_delegate_test.cc
>@@ -0,0 +1,94 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/base/internal/throw_delegate.h"
>+
>+#include <functional>
>+#include <new>
>+#include <stdexcept>
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+using absl::base_internal::ThrowStdLogicError;
>+using absl::base_internal::ThrowStdInvalidArgument;
>+using absl::base_internal::ThrowStdDomainError;
>+using absl::base_internal::ThrowStdLengthError;
>+using absl::base_internal::ThrowStdOutOfRange;
>+using absl::base_internal::ThrowStdRuntimeError;
>+using absl::base_internal::ThrowStdRangeError;
>+using absl::base_internal::ThrowStdOverflowError;
>+using absl::base_internal::ThrowStdUnderflowError;
>+using absl::base_internal::ThrowStdBadFunctionCall;
>+using absl::base_internal::ThrowStdBadAlloc;
>+
>+constexpr const char* what_arg = "The quick brown fox jumps over the lazy dog";
>+
>+template <typename E>
>+void ExpectThrowChar(void (*f)(const char*)) {
>+  try {
>+    f(what_arg);
>+    FAIL() << "Didn't throw";
>+  } catch (const E& e) {
>+    EXPECT_STREQ(e.what(), what_arg);
>+  }
>+}
>+
>+template <typename E>
>+void ExpectThrowString(void (*f)(const std::string&)) {
>+  try {
>+    f(what_arg);
>+    FAIL() << "Didn't throw";
>+  } catch (const E& e) {
>+    EXPECT_STREQ(e.what(), what_arg);
>+  }
>+}
>+
>+template <typename E>
>+void ExpectThrowNoWhat(void (*f)()) {
>+  try {
>+    f();
>+    FAIL() << "Didn't throw";
>+  } catch (const E& e) {
>+  }
>+}
>+
>+TEST(ThrowHelper, Test) {
>+  // Not using EXPECT_THROW because we want to check the .what() message too.
>+  ExpectThrowChar<std::logic_error>(ThrowStdLogicError);
>+  ExpectThrowChar<std::invalid_argument>(ThrowStdInvalidArgument);
>+  ExpectThrowChar<std::domain_error>(ThrowStdDomainError);
>+  ExpectThrowChar<std::length_error>(ThrowStdLengthError);
>+  ExpectThrowChar<std::out_of_range>(ThrowStdOutOfRange);
>+  ExpectThrowChar<std::runtime_error>(ThrowStdRuntimeError);
>+  ExpectThrowChar<std::range_error>(ThrowStdRangeError);
>+  ExpectThrowChar<std::overflow_error>(ThrowStdOverflowError);
>+  ExpectThrowChar<std::underflow_error>(ThrowStdUnderflowError);
>+
>+  ExpectThrowString<std::logic_error>(ThrowStdLogicError);
>+  ExpectThrowString<std::invalid_argument>(ThrowStdInvalidArgument);
>+  ExpectThrowString<std::domain_error>(ThrowStdDomainError);
>+  ExpectThrowString<std::length_error>(ThrowStdLengthError);
>+  ExpectThrowString<std::out_of_range>(ThrowStdOutOfRange);
>+  ExpectThrowString<std::runtime_error>(ThrowStdRuntimeError);
>+  ExpectThrowString<std::range_error>(ThrowStdRangeError);
>+  ExpectThrowString<std::overflow_error>(ThrowStdOverflowError);
>+  ExpectThrowString<std::underflow_error>(ThrowStdUnderflowError);
>+
>+  ExpectThrowNoWhat<std::bad_function_call>(ThrowStdBadFunctionCall);
>+  ExpectThrowNoWhat<std::bad_alloc>(ThrowStdBadAlloc);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/compiler_config_setting.bzl b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/compiler_config_setting.bzl
>new file mode 100644
>index 0000000000000000000000000000000000000000..b77c4f563b95d332c2862657de884db4be7abb4e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/compiler_config_setting.bzl
>@@ -0,0 +1,39 @@
>+#
>+# Copyright 2018 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+"""Creates config_setting that allows selecting based on 'compiler' value."""
>+
>+def create_llvm_config(name, visibility):
>+  # The "do_not_use_tools_cpp_compiler_present" attribute exists to
>+  # distinguish between older versions of Bazel that do not support
>+  # "@bazel_tools//tools/cpp:compiler" flag_value, and newer ones that do.
>+  # In the future, the only way to select on the compiler will be through
>+  # flag_values{"@bazel_tools//tools/cpp:compiler"} and the else branch can
>+  # be removed.
>+  if hasattr(cc_common, "do_not_use_tools_cpp_compiler_present"):
>+    native.config_setting(
>+      name = name,
>+      flag_values = {
>+          "@bazel_tools//tools/cpp:compiler": "llvm",
>+      },
>+      visibility = visibility,
>+    )
>+  else:
>+    native.config_setting(
>+        name = name,
>+        values = {"compiler": "llvm"},
>+        visibility = visibility,
>+    )
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..6d5c958f382ba6397f0b0df1cf996678a7a3c5a6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.bazel
>@@ -0,0 +1,183 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+    "ABSL_EXCEPTIONS_FLAG",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "compressed_tuple",
>+    hdrs = ["internal/compressed_tuple.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/utility",
>+    ],
>+)
>+
>+cc_test(
>+    name = "compressed_tuple_test",
>+    srcs = ["internal/compressed_tuple_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":compressed_tuple",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "fixed_array",
>+    hdrs = ["fixed_array.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":compressed_tuple",
>+        "//absl/algorithm",
>+        "//absl/base:core_headers",
>+        "//absl/base:dynamic_annotations",
>+        "//absl/base:throw_delegate",
>+        "//absl/memory",
>+    ],
>+)
>+
>+cc_test(
>+    name = "fixed_array_test",
>+    srcs = ["fixed_array_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":fixed_array",
>+        "//absl/base:exception_testing",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "fixed_array_test_noexceptions",
>+    srcs = ["fixed_array_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":fixed_array",
>+        "//absl/base:exception_testing",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "fixed_array_exception_safety_test",
>+    srcs = ["fixed_array_exception_safety_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":fixed_array",
>+        "//absl/base:exception_safety_testing",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "fixed_array_benchmark",
>+    srcs = ["fixed_array_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS + ["$(STACK_FRAME_UNLIMITED)"],
>+    tags = ["benchmark"],
>+    deps = [
>+        ":fixed_array",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "inlined_vector",
>+    hdrs = ["inlined_vector.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/algorithm",
>+        "//absl/base:core_headers",
>+        "//absl/base:throw_delegate",
>+        "//absl/memory",
>+    ],
>+)
>+
>+cc_test(
>+    name = "inlined_vector_test",
>+    srcs = ["inlined_vector_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":inlined_vector",
>+        ":test_instance_tracker",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/base:exception_testing",
>+        "//absl/memory",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "inlined_vector_test_noexceptions",
>+    srcs = ["inlined_vector_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":inlined_vector",
>+        ":test_instance_tracker",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/base:exception_testing",
>+        "//absl/memory",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "inlined_vector_benchmark",
>+    srcs = ["inlined_vector_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":inlined_vector",
>+        "//absl/base",
>+        "//absl/strings",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "test_instance_tracker",
>+    testonly = 1,
>+    srcs = ["internal/test_instance_tracker.cc"],
>+    hdrs = ["internal/test_instance_tracker.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+)
>+
>+cc_test(
>+    name = "test_instance_tracker_test",
>+    srcs = ["internal/test_instance_tracker_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":test_instance_tracker",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..001a2a36d4846d57e851f8143f8aaa5c9915830a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/BUILD.gn
>@@ -0,0 +1,86 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("compressed_tuple") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/compressed_tuple.h",
>+  ]
>+  deps = [
>+    "../utility",
>+  ]
>+}
>+
>+source_set("fixed_array") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "fixed_array.h",
>+  ]
>+  deps = [
>+    ":compressed_tuple",
>+    "../algorithm",
>+    "../base:core_headers",
>+    "../base:dynamic_annotations",
>+    "../base:throw_delegate",
>+    "../memory",
>+  ]
>+}
>+
>+source_set("inlined_vector") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "inlined_vector.h",
>+  ]
>+  deps = [
>+    "../algorithm",
>+    "../base:core_headers",
>+    "../base:throw_delegate",
>+    "../memory",
>+  ]
>+}
>+
>+source_set("test_instance_tracker") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/test_instance_tracker.cc",
>+  ]
>+  public = [
>+    "internal/test_instance_tracker.h",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..123e4c4849aabe2eedea21f05efd2d0263830fb8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/CMakeLists.txt
>@@ -0,0 +1,144 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+
>+list(APPEND CONTAINER_PUBLIC_HEADERS
>+  "fixed_array.h"
>+  "inlined_vector.h"
>+)
>+
>+
>+list(APPEND CONTAINER_INTERNAL_HEADERS
>+  "internal/test_instance_tracker.h"
>+)
>+
>+
>+absl_header_library(
>+  TARGET
>+    absl_container
>+  EXPORT_NAME
>+    container
>+)
>+
>+
>+#
>+## TESTS
>+#
>+
>+list(APPEND TEST_INSTANCE_TRACKER_LIB_SRC
>+  "internal/test_instance_tracker.cc"
>+  ${CONTAINER_PUBLIC_HEADERS}
>+  ${CONTAINER_INTERNAL_HEADERS}
>+)
>+
>+
>+absl_library(
>+  TARGET
>+    test_instance_tracker_lib
>+  SOURCES
>+    ${TEST_INSTANCE_TRACKER_LIB_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::container
>+)
>+
>+
>+
>+# test fixed_array_test
>+set(FIXED_ARRAY_TEST_SRC "fixed_array_test.cc")
>+set(FIXED_ARRAY_TEST_PUBLIC_LIBRARIES absl::base absl_throw_delegate test_instance_tracker_lib)
>+
>+absl_test(
>+  TARGET
>+    fixed_array_test
>+  SOURCES
>+    ${FIXED_ARRAY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${FIXED_ARRAY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+
>+absl_test(
>+  TARGET
>+    fixed_array_test_noexceptions
>+  SOURCES
>+    ${FIXED_ARRAY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${FIXED_ARRAY_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test fixed_array_exception_safety_test
>+set(FIXED_ARRAY_EXCEPTION_SAFETY_TEST_SRC "fixed_array_exception_safety_test.cc")
>+set(FIXED_ARRAY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES
>+  absl::container
>+  absl_base_internal_exception_safety_testing
>+)
>+
>+absl_test(
>+  TARGET
>+    fixed_array_exception_safety_test
>+  SOURCES
>+    ${FIXED_ARRAY_EXCEPTION_SAFETY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${FIXED_ARRAY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+# test inlined_vector_test
>+set(INLINED_VECTOR_TEST_SRC "inlined_vector_test.cc")
>+set(INLINED_VECTOR_TEST_PUBLIC_LIBRARIES absl::base absl_throw_delegate test_instance_tracker_lib)
>+
>+absl_test(
>+  TARGET
>+    inlined_vector_test
>+  SOURCES
>+    ${INLINED_VECTOR_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INLINED_VECTOR_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+absl_test(
>+  TARGET
>+    inlined_vector_test_noexceptions
>+  SOURCES
>+    ${INLINED_VECTOR_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INLINED_VECTOR_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_NOEXCEPTION_CXXFLAGS}
>+)
>+
>+
>+# test test_instance_tracker_test
>+set(TEST_INSTANCE_TRACKER_TEST_SRC "internal/test_instance_tracker_test.cc")
>+set(TEST_INSTANCE_TRACKER_TEST_PUBLIC_LIBRARIES absl::base absl_throw_delegate test_instance_tracker_lib)
>+
>+
>+absl_test(
>+  TARGET
>+    test_instance_tracker_test
>+  SOURCES
>+    ${TEST_INSTANCE_TRACKER_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${TEST_INSTANCE_TRACKER_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..182258f623e13aea80b7578e1906dad9478388b0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array.h
>@@ -0,0 +1,512 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: fixed_array.h
>+// -----------------------------------------------------------------------------
>+//
>+// A `FixedArray<T>` represents a non-resizable array of `T` where the length of
>+// the array can be determined at run-time. It is a good replacement for
>+// non-standard and deprecated uses of `alloca()` and variable length arrays
>+// within the GCC extension. (See
>+// https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html).
>+//
>+// `FixedArray` allocates small arrays inline, keeping performance fast by
>+// avoiding heap operations. It also helps reduce the chances of
>+// accidentally overflowing your stack if large input is passed to
>+// your function.
>+
>+#ifndef ABSL_CONTAINER_FIXED_ARRAY_H_
>+#define ABSL_CONTAINER_FIXED_ARRAY_H_
>+
>+#include <algorithm>
>+#include <array>
>+#include <cassert>
>+#include <cstddef>
>+#include <initializer_list>
>+#include <iterator>
>+#include <limits>
>+#include <memory>
>+#include <new>
>+#include <type_traits>
>+
>+#include "absl/algorithm/algorithm.h"
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/throw_delegate.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/optimization.h"
>+#include "absl/base/port.h"
>+#include "absl/container/internal/compressed_tuple.h"
>+#include "absl/memory/memory.h"
>+
>+namespace absl {
>+
>+constexpr static auto kFixedArrayUseDefault = static_cast<size_t>(-1);
>+
>+// -----------------------------------------------------------------------------
>+// FixedArray
>+// -----------------------------------------------------------------------------
>+//
>+// A `FixedArray` provides a run-time fixed-size array, allocating a small array
>+// inline for efficiency.
>+//
>+// Most users should not specify an `inline_elements` argument and let
>+// `FixedArray` automatically determine the number of elements
>+// to store inline based on `sizeof(T)`. If `inline_elements` is specified, the
>+// `FixedArray` implementation will use inline storage for arrays with a
>+// length <= `inline_elements`.
>+//
>+// Note that a `FixedArray` constructed with a `size_type` argument will
>+// default-initialize its values by leaving trivially constructible types
>+// uninitialized (e.g. int, int[4], double), and others default-constructed.
>+// This matches the behavior of c-style arrays and `std::array`, but not
>+// `std::vector`.
>+//
>+// Note that `FixedArray` does not provide a public allocator; if it requires a
>+// heap allocation, it will do so with global `::operator new[]()` and
>+// `::operator delete[]()`, even if T provides class-scope overrides for these
>+// operators.
>+template <typename T, size_t N = kFixedArrayUseDefault,
>+          typename A = std::allocator<T>>
>+class FixedArray {
>+  static_assert(!std::is_array<T>::value || std::extent<T>::value > 0,
>+                "Arrays with unknown bounds cannot be used with FixedArray.");
>+
>+  static constexpr size_t kInlineBytesDefault = 256;
>+
>+  using AllocatorTraits = std::allocator_traits<A>;
>+  // std::iterator_traits isn't guaranteed to be SFINAE-friendly until C++17,
>+  // but this seems to be mostly pedantic.
>+  template <typename Iterator>
>+  using EnableIfForwardIterator = absl::enable_if_t<std::is_convertible<
>+      typename std::iterator_traits<Iterator>::iterator_category,
>+      std::forward_iterator_tag>::value>;
>+  static constexpr bool NoexceptCopyable() {
>+    return std::is_nothrow_copy_constructible<StorageElement>::value &&
>+           absl::allocator_is_nothrow<allocator_type>::value;
>+  }
>+  static constexpr bool NoexceptMovable() {
>+    return std::is_nothrow_move_constructible<StorageElement>::value &&
>+           absl::allocator_is_nothrow<allocator_type>::value;
>+  }
>+  static constexpr bool DefaultConstructorIsNonTrivial() {
>+    return !absl::is_trivially_default_constructible<StorageElement>::value;
>+  }
>+
>+ public:
>+  using allocator_type = typename AllocatorTraits::allocator_type;
>+  using value_type = typename allocator_type::value_type;
>+  using pointer = typename allocator_type::pointer;
>+  using const_pointer = typename allocator_type::const_pointer;
>+  using reference = typename allocator_type::reference;
>+  using const_reference = typename allocator_type::const_reference;
>+  using size_type = typename allocator_type::size_type;
>+  using difference_type = typename allocator_type::difference_type;
>+  using iterator = pointer;
>+  using const_iterator = const_pointer;
>+  using reverse_iterator = std::reverse_iterator<iterator>;
>+  using const_reverse_iterator = std::reverse_iterator<const_iterator>;
>+
>+  static constexpr size_type inline_elements =
>+      (N == kFixedArrayUseDefault ? kInlineBytesDefault / sizeof(value_type)
>+                                  : static_cast<size_type>(N));
>+
>+  FixedArray(
>+      const FixedArray& other,
>+      const allocator_type& a = allocator_type()) noexcept(NoexceptCopyable())
>+      : FixedArray(other.begin(), other.end(), a) {}
>+
>+  FixedArray(
>+      FixedArray&& other,
>+      const allocator_type& a = allocator_type()) noexcept(NoexceptMovable())
>+      : FixedArray(std::make_move_iterator(other.begin()),
>+                   std::make_move_iterator(other.end()), a) {}
>+
>+  // Creates an array object that can store `n` elements.
>+  // Note that trivially constructible elements will be uninitialized.
>+  explicit FixedArray(size_type n, const allocator_type& a = allocator_type())
>+      : storage_(n, a) {
>+    if (DefaultConstructorIsNonTrivial()) {
>+      memory_internal::ConstructStorage(storage_.alloc(), storage_.begin(),
>+                                        storage_.end());
>+    }
>+  }
>+
>+  // Creates an array initialized with `n` copies of `val`.
>+  FixedArray(size_type n, const value_type& val,
>+             const allocator_type& a = allocator_type())
>+      : storage_(n, a) {
>+    memory_internal::ConstructStorage(storage_.alloc(), storage_.begin(),
>+                                      storage_.end(), val);
>+  }
>+
>+  // Creates an array initialized with the size and contents of `init_list`.
>+  FixedArray(std::initializer_list<value_type> init_list,
>+             const allocator_type& a = allocator_type())
>+      : FixedArray(init_list.begin(), init_list.end(), a) {}
>+
>+  // Creates an array initialized with the elements from the input
>+  // range. The array's size will always be `std::distance(first, last)`.
>+  // REQUIRES: Iterator must be a forward_iterator or better.
>+  template <typename Iterator, EnableIfForwardIterator<Iterator>* = nullptr>
>+  FixedArray(Iterator first, Iterator last,
>+             const allocator_type& a = allocator_type())
>+      : storage_(std::distance(first, last), a) {
>+    memory_internal::CopyToStorageFromRange(storage_.alloc(), storage_.begin(),
>+                                            first, last);
>+  }
>+
>+  ~FixedArray() noexcept {
>+    for (auto* cur = storage_.begin(); cur != storage_.end(); ++cur) {
>+      AllocatorTraits::destroy(*storage_.alloc(), cur);
>+    }
>+  }
>+
>+  // Assignments are deleted because they break the invariant that the size of a
>+  // `FixedArray` never changes.
>+  void operator=(FixedArray&&) = delete;
>+  void operator=(const FixedArray&) = delete;
>+
>+  // FixedArray::size()
>+  //
>+  // Returns the length of the fixed array.
>+  size_type size() const { return storage_.size(); }
>+
>+  // FixedArray::max_size()
>+  //
>+  // Returns the largest possible value of `std::distance(begin(), end())` for a
>+  // `FixedArray<T>`. This is equivalent to the most possible addressable bytes
>+  // over the number of bytes taken by T.
>+  constexpr size_type max_size() const {
>+    return std::numeric_limits<difference_type>::max() / sizeof(value_type);
>+  }
>+
>+  // FixedArray::empty()
>+  //
>+  // Returns whether or not the fixed array is empty.
>+  bool empty() const { return size() == 0; }
>+
>+  // FixedArray::memsize()
>+  //
>+  // Returns the memory size of the fixed array in bytes.
>+  size_t memsize() const { return size() * sizeof(value_type); }
>+
>+  // FixedArray::data()
>+  //
>+  // Returns a const T* pointer to elements of the `FixedArray`. This pointer
>+  // can be used to access (but not modify) the contained elements.
>+  const_pointer data() const { return AsValueType(storage_.begin()); }
>+
>+  // Overload of FixedArray::data() to return a T* pointer to elements of the
>+  // fixed array. This pointer can be used to access and modify the contained
>+  // elements.
>+  pointer data() { return AsValueType(storage_.begin()); }
>+
>+  // FixedArray::operator[]
>+  //
>+  // Returns a reference the ith element of the fixed array.
>+  // REQUIRES: 0 <= i < size()
>+  reference operator[](size_type i) {
>+    assert(i < size());
>+    return data()[i];
>+  }
>+
>+  // Overload of FixedArray::operator()[] to return a const reference to the
>+  // ith element of the fixed array.
>+  // REQUIRES: 0 <= i < size()
>+  const_reference operator[](size_type i) const {
>+    assert(i < size());
>+    return data()[i];
>+  }
>+
>+  // FixedArray::at
>+  //
>+  // Bounds-checked access.  Returns a reference to the ith element of the
>+  // fiexed array, or throws std::out_of_range
>+  reference at(size_type i) {
>+    if (ABSL_PREDICT_FALSE(i >= size())) {
>+      base_internal::ThrowStdOutOfRange("FixedArray::at failed bounds check");
>+    }
>+    return data()[i];
>+  }
>+
>+  // Overload of FixedArray::at() to return a const reference to the ith element
>+  // of the fixed array.
>+  const_reference at(size_type i) const {
>+    if (ABSL_PREDICT_FALSE(i >= size())) {
>+      base_internal::ThrowStdOutOfRange("FixedArray::at failed bounds check");
>+    }
>+    return data()[i];
>+  }
>+
>+  // FixedArray::front()
>+  //
>+  // Returns a reference to the first element of the fixed array.
>+  reference front() { return *begin(); }
>+
>+  // Overload of FixedArray::front() to return a reference to the first element
>+  // of a fixed array of const values.
>+  const_reference front() const { return *begin(); }
>+
>+  // FixedArray::back()
>+  //
>+  // Returns a reference to the last element of the fixed array.
>+  reference back() { return *(end() - 1); }
>+
>+  // Overload of FixedArray::back() to return a reference to the last element
>+  // of a fixed array of const values.
>+  const_reference back() const { return *(end() - 1); }
>+
>+  // FixedArray::begin()
>+  //
>+  // Returns an iterator to the beginning of the fixed array.
>+  iterator begin() { return data(); }
>+
>+  // Overload of FixedArray::begin() to return a const iterator to the
>+  // beginning of the fixed array.
>+  const_iterator begin() const { return data(); }
>+
>+  // FixedArray::cbegin()
>+  //
>+  // Returns a const iterator to the beginning of the fixed array.
>+  const_iterator cbegin() const { return begin(); }
>+
>+  // FixedArray::end()
>+  //
>+  // Returns an iterator to the end of the fixed array.
>+  iterator end() { return data() + size(); }
>+
>+  // Overload of FixedArray::end() to return a const iterator to the end of the
>+  // fixed array.
>+  const_iterator end() const { return data() + size(); }
>+
>+  // FixedArray::cend()
>+  //
>+  // Returns a const iterator to the end of the fixed array.
>+  const_iterator cend() const { return end(); }
>+
>+  // FixedArray::rbegin()
>+  //
>+  // Returns a reverse iterator from the end of the fixed array.
>+  reverse_iterator rbegin() { return reverse_iterator(end()); }
>+
>+  // Overload of FixedArray::rbegin() to return a const reverse iterator from
>+  // the end of the fixed array.
>+  const_reverse_iterator rbegin() const {
>+    return const_reverse_iterator(end());
>+  }
>+
>+  // FixedArray::crbegin()
>+  //
>+  // Returns a const reverse iterator from the end of the fixed array.
>+  const_reverse_iterator crbegin() const { return rbegin(); }
>+
>+  // FixedArray::rend()
>+  //
>+  // Returns a reverse iterator from the beginning of the fixed array.
>+  reverse_iterator rend() { return reverse_iterator(begin()); }
>+
>+  // Overload of FixedArray::rend() for returning a const reverse iterator
>+  // from the beginning of the fixed array.
>+  const_reverse_iterator rend() const {
>+    return const_reverse_iterator(begin());
>+  }
>+
>+  // FixedArray::crend()
>+  //
>+  // Returns a reverse iterator from the beginning of the fixed array.
>+  const_reverse_iterator crend() const { return rend(); }
>+
>+  // FixedArray::fill()
>+  //
>+  // Assigns the given `value` to all elements in the fixed array.
>+  void fill(const value_type& val) { std::fill(begin(), end(), val); }
>+
>+  // Relational operators. Equality operators are elementwise using
>+  // `operator==`, while order operators order FixedArrays lexicographically.
>+  friend bool operator==(const FixedArray& lhs, const FixedArray& rhs) {
>+    return absl::equal(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
>+  }
>+
>+  friend bool operator!=(const FixedArray& lhs, const FixedArray& rhs) {
>+    return !(lhs == rhs);
>+  }
>+
>+  friend bool operator<(const FixedArray& lhs, const FixedArray& rhs) {
>+    return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(),
>+                                        rhs.end());
>+  }
>+
>+  friend bool operator>(const FixedArray& lhs, const FixedArray& rhs) {
>+    return rhs < lhs;
>+  }
>+
>+  friend bool operator<=(const FixedArray& lhs, const FixedArray& rhs) {
>+    return !(rhs < lhs);
>+  }
>+
>+  friend bool operator>=(const FixedArray& lhs, const FixedArray& rhs) {
>+    return !(lhs < rhs);
>+  }
>+ private:
>+  // StorageElement
>+  //
>+  // For FixedArrays with a C-style-array value_type, StorageElement is a POD
>+  // wrapper struct called StorageElementWrapper that holds the value_type
>+  // instance inside. This is needed for construction and destruction of the
>+  // entire array regardless of how many dimensions it has. For all other cases,
>+  // StorageElement is just an alias of value_type.
>+  //
>+  // Maintainer's Note: The simpler solution would be to simply wrap value_type
>+  // in a struct whether it's an array or not. That causes some paranoid
>+  // diagnostics to misfire, believing that 'data()' returns a pointer to a
>+  // single element, rather than the packed array that it really is.
>+  // e.g.:
>+  //
>+  //     FixedArray<char> buf(1);
>+  //     sprintf(buf.data(), "foo");
>+  //
>+  //     error: call to int __builtin___sprintf_chk(etc...)
>+  //     will always overflow destination buffer [-Werror]
>+  //
>+  template <typename OuterT = value_type,
>+            typename InnerT = absl::remove_extent_t<OuterT>,
>+            size_t InnerN = std::extent<OuterT>::value>
>+  struct StorageElementWrapper {
>+    InnerT array[InnerN];
>+  };
>+
>+  using StorageElement =
>+      absl::conditional_t<std::is_array<value_type>::value,
>+                          StorageElementWrapper<value_type>, value_type>;
>+  using StorageElementBuffer =
>+      absl::aligned_storage_t<sizeof(StorageElement), alignof(StorageElement)>;
>+
>+  static pointer AsValueType(pointer ptr) { return ptr; }
>+  static pointer AsValueType(StorageElementWrapper<value_type>* ptr) {
>+    return std::addressof(ptr->array);
>+  }
>+
>+  static_assert(sizeof(StorageElement) == sizeof(value_type), "");
>+  static_assert(alignof(StorageElement) == alignof(value_type), "");
>+
>+  struct NonEmptyInlinedStorage {
>+    StorageElement* data() {
>+      return reinterpret_cast<StorageElement*>(inlined_storage_.data());
>+    }
>+
>+#ifdef ADDRESS_SANITIZER
>+    void* RedzoneBegin() { return &redzone_begin_; }
>+    void* RedzoneEnd() { return &redzone_end_ + 1; }
>+#endif  // ADDRESS_SANITIZER
>+
>+    void AnnotateConstruct(size_type);
>+    void AnnotateDestruct(size_type);
>+
>+    ABSL_ADDRESS_SANITIZER_REDZONE(redzone_begin_);
>+    std::array<StorageElementBuffer, inline_elements> inlined_storage_;
>+    ABSL_ADDRESS_SANITIZER_REDZONE(redzone_end_);
>+  };
>+
>+  struct EmptyInlinedStorage {
>+    StorageElement* data() { return nullptr; }
>+    void AnnotateConstruct(size_type) {}
>+    void AnnotateDestruct(size_type) {}
>+  };
>+
>+  using InlinedStorage =
>+      absl::conditional_t<inline_elements == 0, EmptyInlinedStorage,
>+                          NonEmptyInlinedStorage>;
>+
>+  // Storage
>+  //
>+  // An instance of Storage manages the inline and out-of-line memory for
>+  // instances of FixedArray. This guarantees that even when construction of
>+  // individual elements fails in the FixedArray constructor body, the
>+  // destructor for Storage will still be called and out-of-line memory will be
>+  // properly deallocated.
>+  //
>+  class Storage : public InlinedStorage {
>+   public:
>+    Storage(size_type n, const allocator_type& a)
>+        : size_alloc_(n, a), data_(InitializeData()) {}
>+
>+    ~Storage() noexcept {
>+      if (UsingInlinedStorage(size())) {
>+        InlinedStorage::AnnotateDestruct(size());
>+      } else {
>+        AllocatorTraits::deallocate(*alloc(), AsValueType(begin()), size());
>+      }
>+    }
>+
>+    size_type size() const { return size_alloc_.template get<0>(); }
>+    StorageElement* begin() const { return data_; }
>+    StorageElement* end() const { return begin() + size(); }
>+    allocator_type* alloc() {
>+      return std::addressof(size_alloc_.template get<1>());
>+    }
>+
>+   private:
>+    static bool UsingInlinedStorage(size_type n) {
>+      return n <= inline_elements;
>+    }
>+
>+    StorageElement* InitializeData() {
>+      if (UsingInlinedStorage(size())) {
>+        InlinedStorage::AnnotateConstruct(size());
>+        return InlinedStorage::data();
>+      } else {
>+        return reinterpret_cast<StorageElement*>(
>+            AllocatorTraits::allocate(*alloc(), size()));
>+      }
>+    }
>+
>+    // `CompressedTuple` takes advantage of EBCO for stateless `allocator_type`s
>+    container_internal::CompressedTuple<size_type, allocator_type> size_alloc_;
>+    StorageElement* data_;
>+  };
>+
>+  Storage storage_;
>+};
>+
>+template <typename T, size_t N, typename A>
>+constexpr size_t FixedArray<T, N, A>::kInlineBytesDefault;
>+
>+template <typename T, size_t N, typename A>
>+constexpr typename FixedArray<T, N, A>::size_type
>+    FixedArray<T, N, A>::inline_elements;
>+
>+template <typename T, size_t N, typename A>
>+void FixedArray<T, N, A>::NonEmptyInlinedStorage::AnnotateConstruct(
>+    typename FixedArray<T, N, A>::size_type n) {
>+#ifdef ADDRESS_SANITIZER
>+  if (!n) return;
>+  ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(data(), RedzoneEnd(), RedzoneEnd(), data() + n);
>+  ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(RedzoneBegin(), data(), data(), RedzoneBegin());
>+#endif                   // ADDRESS_SANITIZER
>+  static_cast<void>(n);  // Mark used when not in asan mode
>+}
>+
>+template <typename T, size_t N, typename A>
>+void FixedArray<T, N, A>::NonEmptyInlinedStorage::AnnotateDestruct(
>+    typename FixedArray<T, N, A>::size_type n) {
>+#ifdef ADDRESS_SANITIZER
>+  if (!n) return;
>+  ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(data(), RedzoneEnd(), data() + n, RedzoneEnd());
>+  ABSL_ANNOTATE_CONTIGUOUS_CONTAINER(RedzoneBegin(), data(), RedzoneBegin(), data());
>+#endif                   // ADDRESS_SANITIZER
>+  static_cast<void>(n);  // Mark used when not in asan mode
>+}
>+}  // namespace absl
>+#endif  // ABSL_CONTAINER_FIXED_ARRAY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b4f0cf2aeb04f03409b95bdcb53af5fecd578d8f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_benchmark.cc
>@@ -0,0 +1,66 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/fixed_array.h"
>+
>+#include <stddef.h>
>+#include <string>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+// For benchmarking -- simple class with constructor and destructor that
>+// set an int to a constant..
>+class SimpleClass {
>+ public:
>+  SimpleClass() : i(3) { }
>+  ~SimpleClass() { i = 0; }
>+ private:
>+  int i;
>+};
>+
>+template <typename C, size_t stack_size>
>+void BM_FixedArray(benchmark::State& state) {
>+  const int size = state.range(0);
>+  for (auto _ : state) {
>+    absl::FixedArray<C, stack_size> fa(size);
>+    benchmark::DoNotOptimize(fa.data());
>+  }
>+}
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, absl::kFixedArrayUseDefault)
>+    ->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, 0)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, 1)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, 16)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, 256)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, char, 65536)->Range(0, 1 << 16);
>+
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, absl::kFixedArrayUseDefault)
>+    ->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 0)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 1)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 16)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 256)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, SimpleClass, 65536)->Range(0, 1 << 16);
>+
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, absl::kFixedArrayUseDefault)
>+    ->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 0)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 1)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 16)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 256)->Range(0, 1 << 16);
>+BENCHMARK_TEMPLATE(BM_FixedArray, std::string, 65536)->Range(0, 1 << 16);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c123c2a1c0d2d38484056c34f89101489e5c1424
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_exception_safety_test.cc
>@@ -0,0 +1,117 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <initializer_list>
>+
>+#include "absl/container/fixed_array.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+namespace absl {
>+
>+namespace {
>+
>+constexpr size_t kInlined = 25;
>+constexpr size_t kSmallSize = kInlined / 2;
>+constexpr size_t kLargeSize = kInlined * 2;
>+
>+constexpr int kInitialValue = 5;
>+constexpr int kUpdatedValue = 10;
>+
>+using ::testing::TestThrowingCtor;
>+
>+using Thrower = testing::ThrowingValue<testing::TypeSpec::kEverythingThrows>;
>+using FixedArr = absl::FixedArray<Thrower, kInlined>;
>+
>+using MoveThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
>+using MoveFixedArr = absl::FixedArray<MoveThrower, kInlined>;
>+
>+TEST(FixedArrayExceptionSafety, CopyConstructor) {
>+  auto small = FixedArr(kSmallSize);
>+  TestThrowingCtor<FixedArr>(small);
>+
>+  auto large = FixedArr(kLargeSize);
>+  TestThrowingCtor<FixedArr>(large);
>+}
>+
>+TEST(FixedArrayExceptionSafety, MoveConstructor) {
>+  TestThrowingCtor<FixedArr>(FixedArr(kSmallSize));
>+  TestThrowingCtor<FixedArr>(FixedArr(kLargeSize));
>+
>+  // TypeSpec::kNoThrowMove
>+  TestThrowingCtor<MoveFixedArr>(MoveFixedArr(kSmallSize));
>+  TestThrowingCtor<MoveFixedArr>(MoveFixedArr(kLargeSize));
>+}
>+
>+TEST(FixedArrayExceptionSafety, SizeConstructor) {
>+  TestThrowingCtor<FixedArr>(kSmallSize);
>+  TestThrowingCtor<FixedArr>(kLargeSize);
>+}
>+
>+TEST(FixedArrayExceptionSafety, SizeValueConstructor) {
>+  TestThrowingCtor<FixedArr>(kSmallSize, Thrower());
>+  TestThrowingCtor<FixedArr>(kLargeSize, Thrower());
>+}
>+
>+TEST(FixedArrayExceptionSafety, IteratorConstructor) {
>+  auto small = FixedArr(kSmallSize);
>+  TestThrowingCtor<FixedArr>(small.begin(), small.end());
>+
>+  auto large = FixedArr(kLargeSize);
>+  TestThrowingCtor<FixedArr>(large.begin(), large.end());
>+}
>+
>+TEST(FixedArrayExceptionSafety, InitListConstructor) {
>+  constexpr int small_inlined = 3;
>+  using SmallFixedArr = absl::FixedArray<Thrower, small_inlined>;
>+
>+  TestThrowingCtor<SmallFixedArr>(std::initializer_list<Thrower>{});
>+  // Test inlined allocation
>+  TestThrowingCtor<SmallFixedArr>(
>+      std::initializer_list<Thrower>{Thrower{}, Thrower{}});
>+  // Test out of line allocation
>+  TestThrowingCtor<SmallFixedArr>(std::initializer_list<Thrower>{
>+      Thrower{}, Thrower{}, Thrower{}, Thrower{}, Thrower{}});
>+}
>+
>+testing::AssertionResult ReadMemory(FixedArr* fixed_arr) {
>+  // Marked volatile to prevent optimization. Used for running asan tests.
>+  volatile int sum = 0;
>+  for (const auto& thrower : *fixed_arr) {
>+    sum += thrower.Get();
>+  }
>+  return testing::AssertionSuccess() << "Values sum to [" << sum << "]";
>+}
>+
>+TEST(FixedArrayExceptionSafety, Fill) {
>+  auto test_fill = testing::MakeExceptionSafetyTester()
>+                       .WithInvariants(ReadMemory)
>+                       .WithOperation([&](FixedArr* fixed_arr_ptr) {
>+                         auto thrower =
>+                             Thrower(kUpdatedValue, testing::nothrow_ctor);
>+                         fixed_arr_ptr->fill(thrower);
>+                       });
>+
>+  EXPECT_TRUE(
>+      test_fill.WithInitialValue(FixedArr(kSmallSize, Thrower(kInitialValue)))
>+          .Test());
>+  EXPECT_TRUE(
>+      test_fill.WithInitialValue(FixedArr(kLargeSize, Thrower(kInitialValue)))
>+          .Test());
>+}
>+
>+}  // namespace
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b07ebcb6d9ca6b0e426ca63ac34c06f8140983ce
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/fixed_array_test.cc
>@@ -0,0 +1,870 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/fixed_array.h"
>+
>+#include <stdio.h>
>+#include <cstring>
>+#include <list>
>+#include <memory>
>+#include <numeric>
>+#include <scoped_allocator>
>+#include <stdexcept>
>+#include <string>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_testing.h"
>+#include "absl/memory/memory.h"
>+
>+using ::testing::ElementsAreArray;
>+
>+namespace {
>+
>+// Helper routine to determine if a absl::FixedArray used stack allocation.
>+template <typename ArrayType>
>+static bool IsOnStack(const ArrayType& a) {
>+  return a.size() <= ArrayType::inline_elements;
>+}
>+
>+class ConstructionTester {
>+ public:
>+  ConstructionTester()
>+      : self_ptr_(this),
>+        value_(0) {
>+    constructions++;
>+  }
>+  ~ConstructionTester() {
>+    assert(self_ptr_ == this);
>+    self_ptr_ = nullptr;
>+    destructions++;
>+  }
>+
>+  // These are incremented as elements are constructed and destructed so we can
>+  // be sure all elements are properly cleaned up.
>+  static int constructions;
>+  static int destructions;
>+
>+  void CheckConstructed() {
>+    assert(self_ptr_ == this);
>+  }
>+
>+  void set(int value) { value_ = value; }
>+  int get() { return value_; }
>+
>+ private:
>+  // self_ptr_ should always point to 'this' -- that's how we can be sure the
>+  // constructor has been called.
>+  ConstructionTester* self_ptr_;
>+  int value_;
>+};
>+
>+int ConstructionTester::constructions = 0;
>+int ConstructionTester::destructions = 0;
>+
>+// ThreeInts will initialize its three ints to the value stored in
>+// ThreeInts::counter. The constructor increments counter so that each object
>+// in an array of ThreeInts will have different values.
>+class ThreeInts {
>+ public:
>+  ThreeInts() {
>+    x_ = counter;
>+    y_ = counter;
>+    z_ = counter;
>+    ++counter;
>+  }
>+
>+  static int counter;
>+
>+  int x_, y_, z_;
>+};
>+
>+int ThreeInts::counter = 0;
>+
>+TEST(FixedArrayTest, CopyCtor) {
>+  absl::FixedArray<int, 10> on_stack(5);
>+  std::iota(on_stack.begin(), on_stack.end(), 0);
>+  absl::FixedArray<int, 10> stack_copy = on_stack;
>+  EXPECT_THAT(stack_copy, ElementsAreArray(on_stack));
>+  EXPECT_TRUE(IsOnStack(stack_copy));
>+
>+  absl::FixedArray<int, 10> allocated(15);
>+  std::iota(allocated.begin(), allocated.end(), 0);
>+  absl::FixedArray<int, 10> alloced_copy = allocated;
>+  EXPECT_THAT(alloced_copy, ElementsAreArray(allocated));
>+  EXPECT_FALSE(IsOnStack(alloced_copy));
>+}
>+
>+TEST(FixedArrayTest, MoveCtor) {
>+  absl::FixedArray<std::unique_ptr<int>, 10> on_stack(5);
>+  for (int i = 0; i < 5; ++i) {
>+    on_stack[i] = absl::make_unique<int>(i);
>+  }
>+
>+  absl::FixedArray<std::unique_ptr<int>, 10> stack_copy = std::move(on_stack);
>+  for (int i = 0; i < 5; ++i) EXPECT_EQ(*(stack_copy[i]), i);
>+  EXPECT_EQ(stack_copy.size(), on_stack.size());
>+
>+  absl::FixedArray<std::unique_ptr<int>, 10> allocated(15);
>+  for (int i = 0; i < 15; ++i) {
>+    allocated[i] = absl::make_unique<int>(i);
>+  }
>+
>+  absl::FixedArray<std::unique_ptr<int>, 10> alloced_copy =
>+      std::move(allocated);
>+  for (int i = 0; i < 15; ++i) EXPECT_EQ(*(alloced_copy[i]), i);
>+  EXPECT_EQ(allocated.size(), alloced_copy.size());
>+}
>+
>+TEST(FixedArrayTest, SmallObjects) {
>+  // Small object arrays
>+  {
>+    // Short arrays should be on the stack
>+    absl::FixedArray<int> array(4);
>+    EXPECT_TRUE(IsOnStack(array));
>+  }
>+
>+  {
>+    // Large arrays should be on the heap
>+    absl::FixedArray<int> array(1048576);
>+    EXPECT_FALSE(IsOnStack(array));
>+  }
>+
>+  {
>+    // Arrays of <= default size should be on the stack
>+    absl::FixedArray<int, 100> array(100);
>+    EXPECT_TRUE(IsOnStack(array));
>+  }
>+
>+  {
>+    // Arrays of > default size should be on the stack
>+    absl::FixedArray<int, 100> array(101);
>+    EXPECT_FALSE(IsOnStack(array));
>+  }
>+
>+  {
>+    // Arrays with different size elements should use approximately
>+    // same amount of stack space
>+    absl::FixedArray<int> array1(0);
>+    absl::FixedArray<char> array2(0);
>+    EXPECT_LE(sizeof(array1), sizeof(array2)+100);
>+    EXPECT_LE(sizeof(array2), sizeof(array1)+100);
>+  }
>+
>+  {
>+    // Ensure that vectors are properly constructed inside a fixed array.
>+    absl::FixedArray<std::vector<int> > array(2);
>+    EXPECT_EQ(0, array[0].size());
>+    EXPECT_EQ(0, array[1].size());
>+  }
>+
>+  {
>+    // Regardless of absl::FixedArray implementation, check that a type with a
>+    // low alignment requirement and a non power-of-two size is initialized
>+    // correctly.
>+    ThreeInts::counter = 1;
>+    absl::FixedArray<ThreeInts> array(2);
>+    EXPECT_EQ(1, array[0].x_);
>+    EXPECT_EQ(1, array[0].y_);
>+    EXPECT_EQ(1, array[0].z_);
>+    EXPECT_EQ(2, array[1].x_);
>+    EXPECT_EQ(2, array[1].y_);
>+    EXPECT_EQ(2, array[1].z_);
>+  }
>+}
>+
>+TEST(FixedArrayTest, AtThrows) {
>+  absl::FixedArray<int> a = {1, 2, 3};
>+  EXPECT_EQ(a.at(2), 3);
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL(a.at(3), std::out_of_range,
>+                                 "failed bounds check");
>+}
>+
>+TEST(FixedArrayRelationalsTest, EqualArrays) {
>+  for (int i = 0; i < 10; ++i) {
>+    absl::FixedArray<int, 5> a1(i);
>+    std::iota(a1.begin(), a1.end(), 0);
>+    absl::FixedArray<int, 5> a2(a1.begin(), a1.end());
>+
>+    EXPECT_TRUE(a1 == a2);
>+    EXPECT_FALSE(a1 != a2);
>+    EXPECT_TRUE(a2 == a1);
>+    EXPECT_FALSE(a2 != a1);
>+    EXPECT_FALSE(a1 < a2);
>+    EXPECT_FALSE(a1 > a2);
>+    EXPECT_FALSE(a2 < a1);
>+    EXPECT_FALSE(a2 > a1);
>+    EXPECT_TRUE(a1 <= a2);
>+    EXPECT_TRUE(a1 >= a2);
>+    EXPECT_TRUE(a2 <= a1);
>+    EXPECT_TRUE(a2 >= a1);
>+  }
>+}
>+
>+TEST(FixedArrayRelationalsTest, UnequalArrays) {
>+  for (int i = 1; i < 10; ++i) {
>+    absl::FixedArray<int, 5> a1(i);
>+    std::iota(a1.begin(), a1.end(), 0);
>+    absl::FixedArray<int, 5> a2(a1.begin(), a1.end());
>+    --a2[i / 2];
>+
>+    EXPECT_FALSE(a1 == a2);
>+    EXPECT_TRUE(a1 != a2);
>+    EXPECT_FALSE(a2 == a1);
>+    EXPECT_TRUE(a2 != a1);
>+    EXPECT_FALSE(a1 < a2);
>+    EXPECT_TRUE(a1 > a2);
>+    EXPECT_TRUE(a2 < a1);
>+    EXPECT_FALSE(a2 > a1);
>+    EXPECT_FALSE(a1 <= a2);
>+    EXPECT_TRUE(a1 >= a2);
>+    EXPECT_TRUE(a2 <= a1);
>+    EXPECT_FALSE(a2 >= a1);
>+  }
>+}
>+
>+template <int stack_elements>
>+static void TestArray(int n) {
>+  SCOPED_TRACE(n);
>+  SCOPED_TRACE(stack_elements);
>+  ConstructionTester::constructions = 0;
>+  ConstructionTester::destructions = 0;
>+  {
>+    absl::FixedArray<ConstructionTester, stack_elements> array(n);
>+
>+    EXPECT_THAT(array.size(), n);
>+    EXPECT_THAT(array.memsize(), sizeof(ConstructionTester) * n);
>+    EXPECT_THAT(array.begin() + n, array.end());
>+
>+    // Check that all elements were constructed
>+    for (int i = 0; i < n; i++) {
>+      array[i].CheckConstructed();
>+    }
>+    // Check that no other elements were constructed
>+    EXPECT_THAT(ConstructionTester::constructions, n);
>+
>+    // Test operator[]
>+    for (int i = 0; i < n; i++) {
>+      array[i].set(i);
>+    }
>+    for (int i = 0; i < n; i++) {
>+      EXPECT_THAT(array[i].get(), i);
>+      EXPECT_THAT(array.data()[i].get(), i);
>+    }
>+
>+    // Test data()
>+    for (int i = 0; i < n; i++) {
>+      array.data()[i].set(i + 1);
>+    }
>+    for (int i = 0; i < n; i++) {
>+      EXPECT_THAT(array[i].get(), i+1);
>+      EXPECT_THAT(array.data()[i].get(), i+1);
>+    }
>+  }  // Close scope containing 'array'.
>+
>+  // Check that all constructed elements were destructed.
>+  EXPECT_EQ(ConstructionTester::constructions,
>+            ConstructionTester::destructions);
>+}
>+
>+template <int elements_per_inner_array, int inline_elements>
>+static void TestArrayOfArrays(int n) {
>+  SCOPED_TRACE(n);
>+  SCOPED_TRACE(inline_elements);
>+  SCOPED_TRACE(elements_per_inner_array);
>+  ConstructionTester::constructions = 0;
>+  ConstructionTester::destructions = 0;
>+  {
>+    using InnerArray = ConstructionTester[elements_per_inner_array];
>+    // Heap-allocate the FixedArray to avoid blowing the stack frame.
>+    auto array_ptr =
>+        absl::make_unique<absl::FixedArray<InnerArray, inline_elements>>(n);
>+    auto& array = *array_ptr;
>+
>+    ASSERT_EQ(array.size(), n);
>+    ASSERT_EQ(array.memsize(),
>+             sizeof(ConstructionTester) * elements_per_inner_array * n);
>+    ASSERT_EQ(array.begin() + n, array.end());
>+
>+    // Check that all elements were constructed
>+    for (int i = 0; i < n; i++) {
>+      for (int j = 0; j < elements_per_inner_array; j++) {
>+        (array[i])[j].CheckConstructed();
>+      }
>+    }
>+    // Check that no other elements were constructed
>+    ASSERT_EQ(ConstructionTester::constructions, n * elements_per_inner_array);
>+
>+    // Test operator[]
>+    for (int i = 0; i < n; i++) {
>+      for (int j = 0; j < elements_per_inner_array; j++) {
>+        (array[i])[j].set(i * elements_per_inner_array + j);
>+      }
>+    }
>+    for (int i = 0; i < n; i++) {
>+      for (int j = 0; j < elements_per_inner_array; j++) {
>+        ASSERT_EQ((array[i])[j].get(),  i * elements_per_inner_array + j);
>+        ASSERT_EQ((array.data()[i])[j].get(), i * elements_per_inner_array + j);
>+      }
>+    }
>+
>+    // Test data()
>+    for (int i = 0; i < n; i++) {
>+      for (int j = 0; j < elements_per_inner_array; j++) {
>+        (array.data()[i])[j].set((i + 1) * elements_per_inner_array + j);
>+      }
>+    }
>+    for (int i = 0; i < n; i++) {
>+      for (int j = 0; j < elements_per_inner_array; j++) {
>+        ASSERT_EQ((array[i])[j].get(),
>+                  (i + 1) * elements_per_inner_array + j);
>+        ASSERT_EQ((array.data()[i])[j].get(),
>+                  (i + 1) * elements_per_inner_array + j);
>+      }
>+    }
>+  }  // Close scope containing 'array'.
>+
>+  // Check that all constructed elements were destructed.
>+  EXPECT_EQ(ConstructionTester::constructions,
>+            ConstructionTester::destructions);
>+}
>+
>+TEST(IteratorConstructorTest, NonInline) {
>+  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
>+  absl::FixedArray<int, ABSL_ARRAYSIZE(kInput) - 1> const fixed(
>+      kInput, kInput + ABSL_ARRAYSIZE(kInput));
>+  ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
>+  for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) {
>+    ASSERT_EQ(kInput[i], fixed[i]);
>+  }
>+}
>+
>+TEST(IteratorConstructorTest, Inline) {
>+  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
>+  absl::FixedArray<int, ABSL_ARRAYSIZE(kInput)> const fixed(
>+      kInput, kInput + ABSL_ARRAYSIZE(kInput));
>+  ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
>+  for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) {
>+    ASSERT_EQ(kInput[i], fixed[i]);
>+  }
>+}
>+
>+TEST(IteratorConstructorTest, NonPod) {
>+  char const* kInput[] =
>+      { "red", "orange", "yellow", "green", "blue", "indigo", "violet" };
>+  absl::FixedArray<std::string> const fixed(kInput, kInput + ABSL_ARRAYSIZE(kInput));
>+  ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
>+  for (size_t i = 0; i < ABSL_ARRAYSIZE(kInput); ++i) {
>+    ASSERT_EQ(kInput[i], fixed[i]);
>+  }
>+}
>+
>+TEST(IteratorConstructorTest, FromEmptyVector) {
>+  std::vector<int> const empty;
>+  absl::FixedArray<int> const fixed(empty.begin(), empty.end());
>+  EXPECT_EQ(0, fixed.size());
>+  EXPECT_EQ(empty.size(), fixed.size());
>+}
>+
>+TEST(IteratorConstructorTest, FromNonEmptyVector) {
>+  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
>+  std::vector<int> const items(kInput, kInput + ABSL_ARRAYSIZE(kInput));
>+  absl::FixedArray<int> const fixed(items.begin(), items.end());
>+  ASSERT_EQ(items.size(), fixed.size());
>+  for (size_t i = 0; i < items.size(); ++i) {
>+    ASSERT_EQ(items[i], fixed[i]);
>+  }
>+}
>+
>+TEST(IteratorConstructorTest, FromBidirectionalIteratorRange) {
>+  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
>+  std::list<int> const items(kInput, kInput + ABSL_ARRAYSIZE(kInput));
>+  absl::FixedArray<int> const fixed(items.begin(), items.end());
>+  EXPECT_THAT(fixed, testing::ElementsAreArray(kInput));
>+}
>+
>+TEST(InitListConstructorTest, InitListConstruction) {
>+  absl::FixedArray<int> fixed = {1, 2, 3};
>+  EXPECT_THAT(fixed, testing::ElementsAreArray({1, 2, 3}));
>+}
>+
>+TEST(FillConstructorTest, NonEmptyArrays) {
>+  absl::FixedArray<int> stack_array(4, 1);
>+  EXPECT_THAT(stack_array, testing::ElementsAreArray({1, 1, 1, 1}));
>+
>+  absl::FixedArray<int, 0> heap_array(4, 1);
>+  EXPECT_THAT(stack_array, testing::ElementsAreArray({1, 1, 1, 1}));
>+}
>+
>+TEST(FillConstructorTest, EmptyArray) {
>+  absl::FixedArray<int> empty_fill(0, 1);
>+  absl::FixedArray<int> empty_size(0);
>+  EXPECT_EQ(empty_fill, empty_size);
>+}
>+
>+TEST(FillConstructorTest, NotTriviallyCopyable) {
>+  std::string str = "abcd";
>+  absl::FixedArray<std::string> strings = {str, str, str, str};
>+
>+  absl::FixedArray<std::string> array(4, str);
>+  EXPECT_EQ(array, strings);
>+}
>+
>+TEST(FillConstructorTest, Disambiguation) {
>+  absl::FixedArray<size_t> a(1, 2);
>+  EXPECT_THAT(a, testing::ElementsAre(2));
>+}
>+
>+TEST(FixedArrayTest, ManySizedArrays) {
>+  std::vector<int> sizes;
>+  for (int i = 1; i < 100; i++) sizes.push_back(i);
>+  for (int i = 100; i <= 1000; i += 100) sizes.push_back(i);
>+  for (int n : sizes) {
>+    TestArray<0>(n);
>+    TestArray<1>(n);
>+    TestArray<64>(n);
>+    TestArray<1000>(n);
>+  }
>+}
>+
>+TEST(FixedArrayTest, ManySizedArraysOfArraysOf1) {
>+  for (int n = 1; n < 1000; n++) {
>+    ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 0>(n)));
>+    ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 1>(n)));
>+    ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 64>(n)));
>+    ASSERT_NO_FATAL_FAILURE((TestArrayOfArrays<1, 1000>(n)));
>+  }
>+}
>+
>+TEST(FixedArrayTest, ManySizedArraysOfArraysOf2) {
>+  for (int n = 1; n < 1000; n++) {
>+    TestArrayOfArrays<2, 0>(n);
>+    TestArrayOfArrays<2, 1>(n);
>+    TestArrayOfArrays<2, 64>(n);
>+    TestArrayOfArrays<2, 1000>(n);
>+  }
>+}
>+
>+// If value_type is put inside of a struct container,
>+// we might evoke this error in a hardened build unless data() is carefully
>+// written, so check on that.
>+//     error: call to int __builtin___sprintf_chk(etc...)
>+//     will always overflow destination buffer [-Werror]
>+TEST(FixedArrayTest, AvoidParanoidDiagnostics) {
>+  absl::FixedArray<char, 32> buf(32);
>+  sprintf(buf.data(), "foo");  // NOLINT(runtime/printf)
>+}
>+
>+TEST(FixedArrayTest, TooBigInlinedSpace) {
>+  struct TooBig {
>+    char c[1 << 20];
>+  };  // too big for even one on the stack
>+
>+  // Simulate the data members of absl::FixedArray, a pointer and a size_t.
>+  struct Data {
>+    TooBig* p;
>+    size_t size;
>+  };
>+
>+  // Make sure TooBig objects are not inlined for 0 or default size.
>+  static_assert(sizeof(absl::FixedArray<TooBig, 0>) == sizeof(Data),
>+                "0-sized absl::FixedArray should have same size as Data.");
>+  static_assert(alignof(absl::FixedArray<TooBig, 0>) == alignof(Data),
>+                "0-sized absl::FixedArray should have same alignment as Data.");
>+  static_assert(sizeof(absl::FixedArray<TooBig>) == sizeof(Data),
>+                "default-sized absl::FixedArray should have same size as Data");
>+  static_assert(
>+      alignof(absl::FixedArray<TooBig>) == alignof(Data),
>+      "default-sized absl::FixedArray should have same alignment as Data.");
>+}
>+
>+// PickyDelete EXPECTs its class-scope deallocation funcs are unused.
>+struct PickyDelete {
>+  PickyDelete() {}
>+  ~PickyDelete() {}
>+  void operator delete(void* p) {
>+    EXPECT_TRUE(false) << __FUNCTION__;
>+    ::operator delete(p);
>+  }
>+  void operator delete[](void* p) {
>+    EXPECT_TRUE(false) << __FUNCTION__;
>+    ::operator delete[](p);
>+  }
>+};
>+
>+TEST(FixedArrayTest, UsesGlobalAlloc) { absl::FixedArray<PickyDelete, 0> a(5); }
>+
>+
>+TEST(FixedArrayTest, Data) {
>+  static const int kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
>+  absl::FixedArray<int> fa(std::begin(kInput), std::end(kInput));
>+  EXPECT_EQ(fa.data(), &*fa.begin());
>+  EXPECT_EQ(fa.data(), &fa[0]);
>+
>+  const absl::FixedArray<int>& cfa = fa;
>+  EXPECT_EQ(cfa.data(), &*cfa.begin());
>+  EXPECT_EQ(cfa.data(), &cfa[0]);
>+}
>+
>+TEST(FixedArrayTest, Empty) {
>+  absl::FixedArray<int> empty(0);
>+  absl::FixedArray<int> inline_filled(1);
>+  absl::FixedArray<int, 0> heap_filled(1);
>+  EXPECT_TRUE(empty.empty());
>+  EXPECT_FALSE(inline_filled.empty());
>+  EXPECT_FALSE(heap_filled.empty());
>+}
>+
>+TEST(FixedArrayTest, FrontAndBack) {
>+  absl::FixedArray<int, 3 * sizeof(int)> inlined = {1, 2, 3};
>+  EXPECT_EQ(inlined.front(), 1);
>+  EXPECT_EQ(inlined.back(), 3);
>+
>+  absl::FixedArray<int, 0> allocated = {1, 2, 3};
>+  EXPECT_EQ(allocated.front(), 1);
>+  EXPECT_EQ(allocated.back(), 3);
>+
>+  absl::FixedArray<int> one_element = {1};
>+  EXPECT_EQ(one_element.front(), one_element.back());
>+}
>+
>+TEST(FixedArrayTest, ReverseIteratorInlined) {
>+  absl::FixedArray<int, 5 * sizeof(int)> a = {0, 1, 2, 3, 4};
>+
>+  int counter = 5;
>+  for (absl::FixedArray<int>::reverse_iterator iter = a.rbegin();
>+       iter != a.rend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+
>+  counter = 5;
>+  for (absl::FixedArray<int>::const_reverse_iterator iter = a.rbegin();
>+       iter != a.rend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+
>+  counter = 5;
>+  for (auto iter = a.crbegin(); iter != a.crend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+}
>+
>+TEST(FixedArrayTest, ReverseIteratorAllocated) {
>+  absl::FixedArray<int, 0> a = {0, 1, 2, 3, 4};
>+
>+  int counter = 5;
>+  for (absl::FixedArray<int>::reverse_iterator iter = a.rbegin();
>+       iter != a.rend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+
>+  counter = 5;
>+  for (absl::FixedArray<int>::const_reverse_iterator iter = a.rbegin();
>+       iter != a.rend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+
>+  counter = 5;
>+  for (auto iter = a.crbegin(); iter != a.crend(); ++iter) {
>+    counter--;
>+    EXPECT_EQ(counter, *iter);
>+  }
>+  EXPECT_EQ(counter, 0);
>+}
>+
>+TEST(FixedArrayTest, Fill) {
>+  absl::FixedArray<int, 5 * sizeof(int)> inlined(5);
>+  int fill_val = 42;
>+  inlined.fill(fill_val);
>+  for (int i : inlined) EXPECT_EQ(i, fill_val);
>+
>+  absl::FixedArray<int, 0> allocated(5);
>+  allocated.fill(fill_val);
>+  for (int i : allocated) EXPECT_EQ(i, fill_val);
>+
>+  // It doesn't do anything, just make sure this compiles.
>+  absl::FixedArray<int> empty(0);
>+  empty.fill(fill_val);
>+}
>+
>+// TODO(johnsoncj): Investigate InlinedStorage default initialization in GCC 4.x
>+#ifndef __GNUC__
>+TEST(FixedArrayTest, DefaultCtorDoesNotValueInit) {
>+  using T = char;
>+  constexpr auto capacity = 10;
>+  using FixedArrType = absl::FixedArray<T, capacity>;
>+  using FixedArrBuffType =
>+      absl::aligned_storage_t<sizeof(FixedArrType), alignof(FixedArrType)>;
>+  constexpr auto scrubbed_bits = 0x95;
>+  constexpr auto length = capacity / 2;
>+
>+  FixedArrBuffType buff;
>+  std::memset(std::addressof(buff), scrubbed_bits, sizeof(FixedArrBuffType));
>+
>+  FixedArrType* arr =
>+      ::new (static_cast<void*>(std::addressof(buff))) FixedArrType(length);
>+  EXPECT_THAT(*arr, testing::Each(scrubbed_bits));
>+  arr->~FixedArrType();
>+}
>+#endif  // __GNUC__
>+
>+// This is a stateful allocator, but the state lives outside of the
>+// allocator (in whatever test is using the allocator). This is odd
>+// but helps in tests where the allocator is propagated into nested
>+// containers - that chain of allocators uses the same state and is
>+// thus easier to query for aggregate allocation information.
>+template <typename T>
>+class CountingAllocator : public std::allocator<T> {
>+ public:
>+  using Alloc = std::allocator<T>;
>+  using pointer = typename Alloc::pointer;
>+  using size_type = typename Alloc::size_type;
>+
>+  CountingAllocator() : bytes_used_(nullptr), instance_count_(nullptr) {}
>+  explicit CountingAllocator(int64_t* b)
>+      : bytes_used_(b), instance_count_(nullptr) {}
>+  CountingAllocator(int64_t* b, int64_t* a)
>+      : bytes_used_(b), instance_count_(a) {}
>+
>+  template <typename U>
>+  explicit CountingAllocator(const CountingAllocator<U>& x)
>+      : Alloc(x),
>+        bytes_used_(x.bytes_used_),
>+        instance_count_(x.instance_count_) {}
>+
>+  pointer allocate(size_type n, const void* const hint = nullptr) {
>+    assert(bytes_used_ != nullptr);
>+    *bytes_used_ += n * sizeof(T);
>+    return Alloc::allocate(n, hint);
>+  }
>+
>+  void deallocate(pointer p, size_type n) {
>+    Alloc::deallocate(p, n);
>+    assert(bytes_used_ != nullptr);
>+    *bytes_used_ -= n * sizeof(T);
>+  }
>+
>+  template <typename... Args>
>+  void construct(pointer p, Args&&... args) {
>+    Alloc::construct(p, absl::forward<Args>(args)...);
>+    if (instance_count_) {
>+      *instance_count_ += 1;
>+    }
>+  }
>+
>+  void destroy(pointer p) {
>+    Alloc::destroy(p);
>+    if (instance_count_) {
>+      *instance_count_ -= 1;
>+    }
>+  }
>+
>+  template <typename U>
>+  class rebind {
>+   public:
>+    using other = CountingAllocator<U>;
>+  };
>+
>+  int64_t* bytes_used_;
>+  int64_t* instance_count_;
>+};
>+
>+TEST(AllocatorSupportTest, CountInlineAllocations) {
>+  constexpr size_t inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
>+
>+  int64_t allocated = 0;
>+  int64_t active_instances = 0;
>+
>+  {
>+    const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7};
>+
>+    Alloc alloc(&allocated, &active_instances);
>+
>+    AllocFxdArr arr(ia, ia + inlined_size, alloc);
>+    static_cast<void>(arr);
>+  }
>+
>+  EXPECT_EQ(allocated, 0);
>+  EXPECT_EQ(active_instances, 0);
>+}
>+
>+TEST(AllocatorSupportTest, CountOutoflineAllocations) {
>+  constexpr size_t inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
>+
>+  int64_t allocated = 0;
>+  int64_t active_instances = 0;
>+
>+  {
>+    const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7};
>+    Alloc alloc(&allocated, &active_instances);
>+
>+    AllocFxdArr arr(ia, ia + ABSL_ARRAYSIZE(ia), alloc);
>+
>+    EXPECT_EQ(allocated, arr.size() * sizeof(int));
>+    static_cast<void>(arr);
>+  }
>+
>+  EXPECT_EQ(active_instances, 0);
>+}
>+
>+TEST(AllocatorSupportTest, CountCopyInlineAllocations) {
>+  constexpr size_t inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
>+
>+  int64_t allocated1 = 0;
>+  int64_t allocated2 = 0;
>+  int64_t active_instances = 0;
>+  Alloc alloc(&allocated1, &active_instances);
>+  Alloc alloc2(&allocated2, &active_instances);
>+
>+  {
>+    int initial_value = 1;
>+
>+    AllocFxdArr arr1(inlined_size / 2, initial_value, alloc);
>+
>+    EXPECT_EQ(allocated1, 0);
>+
>+    AllocFxdArr arr2(arr1, alloc2);
>+
>+    EXPECT_EQ(allocated2, 0);
>+    static_cast<void>(arr1);
>+    static_cast<void>(arr2);
>+  }
>+
>+  EXPECT_EQ(active_instances, 0);
>+}
>+
>+TEST(AllocatorSupportTest, CountCopyOutoflineAllocations) {
>+  constexpr size_t inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
>+
>+  int64_t allocated1 = 0;
>+  int64_t allocated2 = 0;
>+  int64_t active_instances = 0;
>+  Alloc alloc(&allocated1, &active_instances);
>+  Alloc alloc2(&allocated2, &active_instances);
>+
>+  {
>+    int initial_value = 1;
>+
>+    AllocFxdArr arr1(inlined_size * 2, initial_value, alloc);
>+
>+    EXPECT_EQ(allocated1, arr1.size() * sizeof(int));
>+
>+    AllocFxdArr arr2(arr1, alloc2);
>+
>+    EXPECT_EQ(allocated2, inlined_size * 2 * sizeof(int));
>+    static_cast<void>(arr1);
>+    static_cast<void>(arr2);
>+  }
>+
>+  EXPECT_EQ(active_instances, 0);
>+}
>+
>+TEST(AllocatorSupportTest, SizeValAllocConstructor) {
>+  using testing::AllOf;
>+  using testing::Each;
>+  using testing::SizeIs;
>+
>+  constexpr size_t inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocFxdArr = absl::FixedArray<int, inlined_size, Alloc>;
>+
>+  {
>+    auto len = inlined_size / 2;
>+    auto val = 0;
>+    int64_t allocated = 0;
>+    AllocFxdArr arr(len, val, Alloc(&allocated));
>+
>+    EXPECT_EQ(allocated, 0);
>+    EXPECT_THAT(arr, AllOf(SizeIs(len), Each(0)));
>+  }
>+
>+  {
>+    auto len = inlined_size * 2;
>+    auto val = 0;
>+    int64_t allocated = 0;
>+    AllocFxdArr arr(len, val, Alloc(&allocated));
>+
>+    EXPECT_EQ(allocated, len * sizeof(int));
>+    EXPECT_THAT(arr, AllOf(SizeIs(len), Each(0)));
>+  }
>+}
>+
>+#ifdef ADDRESS_SANITIZER
>+TEST(FixedArrayTest, AddressSanitizerAnnotations1) {
>+  absl::FixedArray<int, 32> a(10);
>+  int *raw = a.data();
>+  raw[0] = 0;
>+  raw[9] = 0;
>+  EXPECT_DEATH(raw[-2] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[-1] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[10] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[31] = 0, "container-overflow");
>+}
>+
>+TEST(FixedArrayTest, AddressSanitizerAnnotations2) {
>+  absl::FixedArray<char, 17> a(12);
>+  char *raw = a.data();
>+  raw[0] = 0;
>+  raw[11] = 0;
>+  EXPECT_DEATH(raw[-7] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[-1] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[12] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[17] = 0, "container-overflow");
>+}
>+
>+TEST(FixedArrayTest, AddressSanitizerAnnotations3) {
>+  absl::FixedArray<uint64_t, 20> a(20);
>+  uint64_t *raw = a.data();
>+  raw[0] = 0;
>+  raw[19] = 0;
>+  EXPECT_DEATH(raw[-1] = 0, "container-overflow");
>+  EXPECT_DEATH(raw[20] = 0, "container-overflow");
>+}
>+
>+TEST(FixedArrayTest, AddressSanitizerAnnotations4) {
>+  absl::FixedArray<ThreeInts> a(10);
>+  ThreeInts *raw = a.data();
>+  raw[0] = ThreeInts();
>+  raw[9] = ThreeInts();
>+  // Note: raw[-1] is pointing to 12 bytes before the container range. However,
>+  // there is only a 8-byte red zone before the container range, so we only
>+  // access the last 4 bytes of the struct to make sure it stays within the red
>+  // zone.
>+  EXPECT_DEATH(raw[-1].z_ = 0, "container-overflow");
>+  EXPECT_DEATH(raw[10] = ThreeInts(), "container-overflow");
>+  // The actual size of storage is kDefaultBytes=256, 21*12 = 252,
>+  // so reading raw[21] should still trigger the correct warning.
>+  EXPECT_DEATH(raw[21] = ThreeInts(), "container-overflow");
>+}
>+#endif  // ADDRESS_SANITIZER
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..ca36fd3699b905c2ede9bb10725b4d9b66986877
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector.h
>@@ -0,0 +1,1386 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: inlined_vector.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains the declaration and definition of an "inlined
>+// vector" which behaves in an equivalent fashion to a `std::vector`, except
>+// that storage for small sequences of the vector are provided inline without
>+// requiring any heap allocation.
>+
>+// An `absl::InlinedVector<T,N>` specifies the size N at which to inline as one
>+// of its template parameters. Vectors of length <= N are provided inline.
>+// Typically N is very small (e.g., 4) so that sequences that are expected to be
>+// short do not require allocations.
>+
>+// An `absl::InlinedVector` does not usually require a specific allocator; if
>+// the inlined vector grows beyond its initial constraints, it will need to
>+// allocate (as any normal `std::vector` would) and it will generally use the
>+// default allocator in that case; optionally, a custom allocator may be
>+// specified using an `absl::InlinedVector<T,N,A>` construction.
>+
>+#ifndef ABSL_CONTAINER_INLINED_VECTOR_H_
>+#define ABSL_CONTAINER_INLINED_VECTOR_H_
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cstddef>
>+#include <cstdlib>
>+#include <cstring>
>+#include <initializer_list>
>+#include <iterator>
>+#include <memory>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/algorithm/algorithm.h"
>+#include "absl/base/internal/throw_delegate.h"
>+#include "absl/base/optimization.h"
>+#include "absl/base/port.h"
>+#include "absl/memory/memory.h"
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// InlinedVector
>+// -----------------------------------------------------------------------------
>+//
>+// An `absl::InlinedVector` is designed to be a drop-in replacement for
>+// `std::vector` for use cases where the vector's size is sufficiently small
>+// that it can be inlined. If the inlined vector does grow beyond its estimated
>+// size, it will trigger an initial allocation on the heap, and will behave as a
>+// `std:vector`. The API of the `absl::InlinedVector` within this file is
>+// designed to cover the same API footprint as covered by `std::vector`.
>+template <typename T, size_t N, typename A = std::allocator<T> >
>+class InlinedVector {
>+  using AllocatorTraits = std::allocator_traits<A>;
>+
>+ public:
>+  using allocator_type = A;
>+  using value_type = typename allocator_type::value_type;
>+  using pointer = typename allocator_type::pointer;
>+  using const_pointer = typename allocator_type::const_pointer;
>+  using reference = typename allocator_type::reference;
>+  using const_reference = typename allocator_type::const_reference;
>+  using size_type = typename allocator_type::size_type;
>+  using difference_type = typename allocator_type::difference_type;
>+  using iterator = pointer;
>+  using const_iterator = const_pointer;
>+  using reverse_iterator = std::reverse_iterator<iterator>;
>+  using const_reverse_iterator = std::reverse_iterator<const_iterator>;
>+
>+  InlinedVector() noexcept(noexcept(allocator_type()))
>+      : allocator_and_tag_(allocator_type()) {}
>+
>+  explicit InlinedVector(const allocator_type& alloc) noexcept
>+      : allocator_and_tag_(alloc) {}
>+
>+  // Create a vector with n copies of value_type().
>+  explicit InlinedVector(size_type n,
>+                         const allocator_type& alloc = allocator_type())
>+      : allocator_and_tag_(alloc) {
>+    InitAssign(n);
>+  }
>+
>+  // Create a vector with n copies of elem
>+  InlinedVector(size_type n, const value_type& elem,
>+                const allocator_type& alloc = allocator_type())
>+      : allocator_and_tag_(alloc) {
>+    InitAssign(n, elem);
>+  }
>+
>+  // Create and initialize with the elements [first .. last).
>+  // The unused enable_if argument restricts this constructor so that it is
>+  // elided when value_type is an integral type.  This prevents ambiguous
>+  // interpretation between a call to this constructor with two integral
>+  // arguments and a call to the preceding (n, elem) constructor.
>+  template <typename InputIterator>
>+  InlinedVector(
>+      InputIterator first, InputIterator last,
>+      const allocator_type& alloc = allocator_type(),
>+      typename std::enable_if<!std::is_integral<InputIterator>::value>::type* =
>+          nullptr)
>+      : allocator_and_tag_(alloc) {
>+    AppendRange(first, last);
>+  }
>+
>+  InlinedVector(std::initializer_list<value_type> init,
>+                const allocator_type& alloc = allocator_type())
>+      : allocator_and_tag_(alloc) {
>+    AppendRange(init.begin(), init.end());
>+  }
>+
>+  InlinedVector(const InlinedVector& v);
>+  InlinedVector(const InlinedVector& v, const allocator_type& alloc);
>+
>+  // This move constructor does not allocate and only moves the underlying
>+  // objects, so its `noexcept` specification depends on whether moving the
>+  // underlying objects can throw or not. We assume
>+  //  a) move constructors should only throw due to allocation failure and
>+  //  b) if `value_type`'s move constructor allocates, it uses the same
>+  //     allocation function as the `InlinedVector`'s allocator, so the move
>+  //     constructor is non-throwing if the allocator is non-throwing or
>+  //     `value_type`'s move constructor is specified as `noexcept`.
>+  InlinedVector(InlinedVector&& v) noexcept(
>+      absl::allocator_is_nothrow<allocator_type>::value ||
>+      std::is_nothrow_move_constructible<value_type>::value);
>+
>+  // This move constructor allocates and also moves the underlying objects, so
>+  // its `noexcept` specification depends on whether the allocation can throw
>+  // and whether moving the underlying objects can throw. Based on the same
>+  // assumptions above, the `noexcept` specification is dominated by whether the
>+  // allocation can throw regardless of whether `value_type`'s move constructor
>+  // is specified as `noexcept`.
>+  InlinedVector(InlinedVector&& v, const allocator_type& alloc) noexcept(
>+      absl::allocator_is_nothrow<allocator_type>::value);
>+
>+  ~InlinedVector() { clear(); }
>+
>+  InlinedVector& operator=(const InlinedVector& v) {
>+    if (this == &v) {
>+      return *this;
>+    }
>+    // Optimized to avoid reallocation.
>+    // Prefer reassignment to copy construction for elements.
>+    if (size() < v.size()) {  // grow
>+      reserve(v.size());
>+      std::copy(v.begin(), v.begin() + size(), begin());
>+      std::copy(v.begin() + size(), v.end(), std::back_inserter(*this));
>+    } else {  // maybe shrink
>+      erase(begin() + v.size(), end());
>+      std::copy(v.begin(), v.end(), begin());
>+    }
>+    return *this;
>+  }
>+
>+  InlinedVector& operator=(InlinedVector&& v) {
>+    if (this == &v) {
>+      return *this;
>+    }
>+    if (v.allocated()) {
>+      clear();
>+      tag().set_allocated_size(v.size());
>+      init_allocation(v.allocation());
>+      v.tag() = Tag();
>+    } else {
>+      if (allocated()) clear();
>+      // Both are inlined now.
>+      if (size() < v.size()) {
>+        auto mid = std::make_move_iterator(v.begin() + size());
>+        std::copy(std::make_move_iterator(v.begin()), mid, begin());
>+        UninitializedCopy(mid, std::make_move_iterator(v.end()), end());
>+      } else {
>+        auto new_end = std::copy(std::make_move_iterator(v.begin()),
>+                                 std::make_move_iterator(v.end()), begin());
>+        Destroy(new_end, end());
>+      }
>+      tag().set_inline_size(v.size());
>+    }
>+    return *this;
>+  }
>+
>+  InlinedVector& operator=(std::initializer_list<value_type> init) {
>+    AssignRange(init.begin(), init.end());
>+    return *this;
>+  }
>+
>+  // InlinedVector::assign()
>+  //
>+  // Replaces the contents of the inlined vector with copies of those in the
>+  // iterator range [first, last).
>+  template <typename InputIterator>
>+  void assign(
>+      InputIterator first, InputIterator last,
>+      typename std::enable_if<!std::is_integral<InputIterator>::value>::type* =
>+          nullptr) {
>+    AssignRange(first, last);
>+  }
>+
>+  // Overload of `InlinedVector::assign()` to take values from elements of an
>+  // initializer list
>+  void assign(std::initializer_list<value_type> init) {
>+    AssignRange(init.begin(), init.end());
>+  }
>+
>+  // Overload of `InlinedVector::assign()` to replace the first `n` elements of
>+  // the inlined vector with `elem` values.
>+  void assign(size_type n, const value_type& elem) {
>+    if (n <= size()) {  // Possibly shrink
>+      std::fill_n(begin(), n, elem);
>+      erase(begin() + n, end());
>+      return;
>+    }
>+    // Grow
>+    reserve(n);
>+    std::fill_n(begin(), size(), elem);
>+    if (allocated()) {
>+      UninitializedFill(allocated_space() + size(), allocated_space() + n,
>+                        elem);
>+      tag().set_allocated_size(n);
>+    } else {
>+      UninitializedFill(inlined_space() + size(), inlined_space() + n, elem);
>+      tag().set_inline_size(n);
>+    }
>+  }
>+
>+  // InlinedVector::size()
>+  //
>+  // Returns the number of elements in the inlined vector.
>+  size_type size() const noexcept { return tag().size(); }
>+
>+  // InlinedVector::empty()
>+  //
>+  // Checks if the inlined vector has no elements.
>+  bool empty() const noexcept { return (size() == 0); }
>+
>+  // InlinedVector::capacity()
>+  //
>+  // Returns the number of elements that can be stored in an inlined vector
>+  // without requiring a reallocation of underlying memory. Note that for
>+  // most inlined vectors, `capacity()` should equal its initial size `N`; for
>+  // inlined vectors which exceed this capacity, they will no longer be inlined,
>+  // and `capacity()` will equal its capacity on the allocated heap.
>+  size_type capacity() const noexcept {
>+    return allocated() ? allocation().capacity() : N;
>+  }
>+
>+  // InlinedVector::max_size()
>+  //
>+  // Returns the maximum number of elements the vector can hold.
>+  size_type max_size() const noexcept {
>+    // One bit of the size storage is used to indicate whether the inlined
>+    // vector is allocated; as a result, the maximum size of the container that
>+    // we can express is half of the max for our size type.
>+    return std::numeric_limits<size_type>::max() / 2;
>+  }
>+
>+  // InlinedVector::data()
>+  //
>+  // Returns a const T* pointer to elements of the inlined vector. This pointer
>+  // can be used to access (but not modify) the contained elements.
>+  // Only results within the range `[0,size())` are defined.
>+  const_pointer data() const noexcept {
>+    return allocated() ? allocated_space() : inlined_space();
>+  }
>+
>+  // Overload of InlinedVector::data() to return a T* pointer to elements of the
>+  // inlined vector. This pointer can be used to access and modify the contained
>+  // elements.
>+  pointer data() noexcept {
>+    return allocated() ? allocated_space() : inlined_space();
>+  }
>+
>+  // InlinedVector::clear()
>+  //
>+  // Removes all elements from the inlined vector.
>+  void clear() noexcept {
>+    size_type s = size();
>+    if (allocated()) {
>+      Destroy(allocated_space(), allocated_space() + s);
>+      allocation().Dealloc(allocator());
>+    } else if (s != 0) {  // do nothing for empty vectors
>+      Destroy(inlined_space(), inlined_space() + s);
>+    }
>+    tag() = Tag();
>+  }
>+
>+  // InlinedVector::at()
>+  //
>+  // Returns the ith element of an inlined vector.
>+  const value_type& at(size_type i) const {
>+    if (ABSL_PREDICT_FALSE(i >= size())) {
>+      base_internal::ThrowStdOutOfRange(
>+          "InlinedVector::at failed bounds check");
>+    }
>+    return data()[i];
>+  }
>+
>+  // InlinedVector::operator[]
>+  //
>+  // Returns the ith element of an inlined vector using the array operator.
>+  const value_type& operator[](size_type i) const {
>+    assert(i < size());
>+    return data()[i];
>+  }
>+
>+  // Overload of InlinedVector::at() to return the ith element of an inlined
>+  // vector.
>+  value_type& at(size_type i) {
>+    if (i >= size()) {
>+      base_internal::ThrowStdOutOfRange(
>+          "InlinedVector::at failed bounds check");
>+    }
>+    return data()[i];
>+  }
>+
>+  // Overload of InlinedVector::operator[] to return the ith element of an
>+  // inlined vector.
>+  value_type& operator[](size_type i) {
>+    assert(i < size());
>+    return data()[i];
>+  }
>+
>+  // InlinedVector::back()
>+  //
>+  // Returns a reference to the last element of an inlined vector.
>+  value_type& back() {
>+    assert(!empty());
>+    return at(size() - 1);
>+  }
>+
>+  // Overload of InlinedVector::back() returns a reference to the last element
>+  // of an inlined vector of const values.
>+  const value_type& back() const {
>+    assert(!empty());
>+    return at(size() - 1);
>+  }
>+
>+  // InlinedVector::front()
>+  //
>+  // Returns a reference to the first element of an inlined vector.
>+  value_type& front() {
>+    assert(!empty());
>+    return at(0);
>+  }
>+
>+  // Overload of InlinedVector::front() returns a reference to the first element
>+  // of an inlined vector of const values.
>+  const value_type& front() const {
>+    assert(!empty());
>+    return at(0);
>+  }
>+
>+  // InlinedVector::emplace_back()
>+  //
>+  // Constructs and appends an object to the inlined vector.
>+  //
>+  // Returns a reference to the inserted element.
>+  template <typename... Args>
>+  value_type& emplace_back(Args&&... args) {
>+    size_type s = size();
>+    assert(s <= capacity());
>+    if (ABSL_PREDICT_FALSE(s == capacity())) {
>+      return GrowAndEmplaceBack(std::forward<Args>(args)...);
>+    }
>+    assert(s < capacity());
>+
>+    value_type* space;
>+    if (allocated()) {
>+      tag().set_allocated_size(s + 1);
>+      space = allocated_space();
>+    } else {
>+      tag().set_inline_size(s + 1);
>+      space = inlined_space();
>+    }
>+    return Construct(space + s, std::forward<Args>(args)...);
>+  }
>+
>+  // InlinedVector::push_back()
>+  //
>+  // Appends a const element to the inlined vector.
>+  void push_back(const value_type& t) { emplace_back(t); }
>+
>+  // Overload of InlinedVector::push_back() to append a move-only element to the
>+  // inlined vector.
>+  void push_back(value_type&& t) { emplace_back(std::move(t)); }
>+
>+  // InlinedVector::pop_back()
>+  //
>+  // Removes the last element (which is destroyed) in the inlined vector.
>+  void pop_back() {
>+    assert(!empty());
>+    size_type s = size();
>+    if (allocated()) {
>+      Destroy(allocated_space() + s - 1, allocated_space() + s);
>+      tag().set_allocated_size(s - 1);
>+    } else {
>+      Destroy(inlined_space() + s - 1, inlined_space() + s);
>+      tag().set_inline_size(s - 1);
>+    }
>+  }
>+
>+  // InlinedVector::resize()
>+  //
>+  // Resizes the inlined vector to contain `n` elements. If `n` is smaller than
>+  // the inlined vector's current size, extra elements are destroyed. If `n` is
>+  // larger than the initial size, new elements are value-initialized.
>+  void resize(size_type n);
>+
>+  // Overload of InlinedVector::resize() to resize the inlined vector to contain
>+  // `n` elements. If `n` is larger than the current size, enough copies of
>+  // `elem` are appended to increase its size to `n`.
>+  void resize(size_type n, const value_type& elem);
>+
>+  // InlinedVector::begin()
>+  //
>+  // Returns an iterator to the beginning of the inlined vector.
>+  iterator begin() noexcept { return data(); }
>+
>+  // Overload of InlinedVector::begin() for returning a const iterator to the
>+  // beginning of the inlined vector.
>+  const_iterator begin() const noexcept { return data(); }
>+
>+  // InlinedVector::cbegin()
>+  //
>+  // Returns a const iterator to the beginning of the inlined vector.
>+  const_iterator cbegin() const noexcept { return begin(); }
>+
>+  // InlinedVector::end()
>+  //
>+  // Returns an iterator to the end of the inlined vector.
>+  iterator end() noexcept { return data() + size(); }
>+
>+  // Overload of InlinedVector::end() for returning a const iterator to the end
>+  // of the inlined vector.
>+  const_iterator end() const noexcept { return data() + size(); }
>+
>+  // InlinedVector::cend()
>+  //
>+  // Returns a const iterator to the end of the inlined vector.
>+  const_iterator cend() const noexcept { return end(); }
>+
>+  // InlinedVector::rbegin()
>+  //
>+  // Returns a reverse iterator from the end of the inlined vector.
>+  reverse_iterator rbegin() noexcept { return reverse_iterator(end()); }
>+
>+  // Overload of InlinedVector::rbegin() for returning a const reverse iterator
>+  // from the end of the inlined vector.
>+  const_reverse_iterator rbegin() const noexcept {
>+    return const_reverse_iterator(end());
>+  }
>+
>+  // InlinedVector::crbegin()
>+  //
>+  // Returns a const reverse iterator from the end of the inlined vector.
>+  const_reverse_iterator crbegin() const noexcept { return rbegin(); }
>+
>+  // InlinedVector::rend()
>+  //
>+  // Returns a reverse iterator from the beginning of the inlined vector.
>+  reverse_iterator rend() noexcept { return reverse_iterator(begin()); }
>+
>+  // Overload of InlinedVector::rend() for returning a const reverse iterator
>+  // from the beginning of the inlined vector.
>+  const_reverse_iterator rend() const noexcept {
>+    return const_reverse_iterator(begin());
>+  }
>+
>+  // InlinedVector::crend()
>+  //
>+  // Returns a reverse iterator from the beginning of the inlined vector.
>+  const_reverse_iterator crend() const noexcept { return rend(); }
>+
>+  // InlinedVector::emplace()
>+  //
>+  // Constructs and inserts an object to the inlined vector at the given
>+  // `position`, returning an iterator pointing to the newly emplaced element.
>+  template <typename... Args>
>+  iterator emplace(const_iterator position, Args&&... args);
>+
>+  // InlinedVector::insert()
>+  //
>+  // Inserts an element of the specified value at `position`, returning an
>+  // iterator pointing to the newly inserted element.
>+  iterator insert(const_iterator position, const value_type& v) {
>+    return emplace(position, v);
>+  }
>+
>+  // Overload of InlinedVector::insert() for inserting an element of the
>+  // specified rvalue, returning an iterator pointing to the newly inserted
>+  // element.
>+  iterator insert(const_iterator position, value_type&& v) {
>+    return emplace(position, std::move(v));
>+  }
>+
>+  // Overload of InlinedVector::insert() for inserting `n` elements of the
>+  // specified value at `position`, returning an iterator pointing to the first
>+  // of the newly inserted elements.
>+  iterator insert(const_iterator position, size_type n, const value_type& v) {
>+    return InsertWithCount(position, n, v);
>+  }
>+
>+  // Overload of `InlinedVector::insert()` to disambiguate the two
>+  // three-argument overloads of `insert()`, returning an iterator pointing to
>+  // the first of the newly inserted elements.
>+  template <typename InputIterator,
>+            typename = typename std::enable_if<std::is_convertible<
>+                typename std::iterator_traits<InputIterator>::iterator_category,
>+                std::input_iterator_tag>::value>::type>
>+  iterator insert(const_iterator position, InputIterator first,
>+                  InputIterator last) {
>+    using IterType =
>+        typename std::iterator_traits<InputIterator>::iterator_category;
>+    return InsertWithRange(position, first, last, IterType());
>+  }
>+
>+  // Overload of InlinedVector::insert() for inserting a list of elements at
>+  // `position`, returning an iterator pointing to the first of the newly
>+  // inserted elements.
>+  iterator insert(const_iterator position,
>+                  std::initializer_list<value_type> init) {
>+    return insert(position, init.begin(), init.end());
>+  }
>+
>+  // InlinedVector::erase()
>+  //
>+  // Erases the element at `position` of the inlined vector, returning an
>+  // iterator pointing to the following element or the container's end if the
>+  // last element was erased.
>+  iterator erase(const_iterator position) {
>+    assert(position >= begin());
>+    assert(position < end());
>+
>+    iterator pos = const_cast<iterator>(position);
>+    std::move(pos + 1, end(), pos);
>+    pop_back();
>+    return pos;
>+  }
>+
>+  // Overload of InlinedVector::erase() for erasing all elements in the
>+  // iterator range [first, last) in the inlined vector, returning an iterator
>+  // pointing to the first element following the range erased, or the
>+  // container's end if range included the container's last element.
>+  iterator erase(const_iterator first, const_iterator last);
>+
>+  // InlinedVector::reserve()
>+  //
>+  // Enlarges the underlying representation of the inlined vector so it can hold
>+  // at least `n` elements. This method does not change `size()` or the actual
>+  // contents of the vector.
>+  //
>+  // Note that if `n` does not exceed the inlined vector's initial size `N`,
>+  // `reserve()` will have no effect; if it does exceed its initial size,
>+  // `reserve()` will trigger an initial allocation and move the inlined vector
>+  // onto the heap. If the vector already exists on the heap and the requested
>+  // size exceeds it, a reallocation will be performed.
>+  void reserve(size_type n) {
>+    if (n > capacity()) {
>+      // Make room for new elements
>+      EnlargeBy(n - size());
>+    }
>+  }
>+
>+  // InlinedVector::shrink_to_fit()
>+  //
>+  // Reduces memory usage by freeing unused memory.
>+  // After this call `capacity()` will be equal to `max(N, size())`.
>+  //
>+  // If `size() <= N` and the elements are currently stored on the heap, they
>+  // will be moved to the inlined storage and the heap memory deallocated.
>+  // If `size() > N` and `size() < capacity()` the elements will be moved to
>+  // a reallocated storage on heap.
>+  void shrink_to_fit() {
>+    const auto s = size();
>+    if (!allocated() || s == capacity()) {
>+      // There's nothing to deallocate.
>+      return;
>+    }
>+
>+    if (s <= N) {
>+      // Move the elements to the inlined storage.
>+      // We have to do this using a temporary, because inlined_storage and
>+      // allocation_storage are in a union field.
>+      auto temp = std::move(*this);
>+      assign(std::make_move_iterator(temp.begin()),
>+             std::make_move_iterator(temp.end()));
>+      return;
>+    }
>+
>+    // Reallocate storage and move elements.
>+    // We can't simply use the same approach as above, because assign() would
>+    // call into reserve() internally and reserve larger capacity than we need.
>+    Allocation new_allocation(allocator(), s);
>+    UninitializedCopy(std::make_move_iterator(allocated_space()),
>+                      std::make_move_iterator(allocated_space() + s),
>+                      new_allocation.buffer());
>+    ResetAllocation(new_allocation, s);
>+  }
>+
>+  // InlinedVector::swap()
>+  //
>+  // Swaps the contents of this inlined vector with the contents of `other`.
>+  void swap(InlinedVector& other);
>+
>+  // InlinedVector::get_allocator()
>+  //
>+  // Returns the allocator of this inlined vector.
>+  allocator_type get_allocator() const { return allocator(); }
>+
>+ private:
>+  static_assert(N > 0, "inlined vector with nonpositive size");
>+
>+  // It holds whether the vector is allocated or not in the lowest bit.
>+  // The size is held in the high bits:
>+  //   size_ = (size << 1) | is_allocated;
>+  //
>+  // Maintainer's Note: size_type is user defined. The contract is limited to
>+  // arithmetic operators to avoid depending on compliant overloaded bitwise
>+  // operators.
>+  class Tag {
>+   public:
>+    Tag() : size_(0) {}
>+    size_type size() const { return size_ / 2; }
>+    void add_size(size_type n) { size_ += n * 2; }
>+    void set_inline_size(size_type n) { size_ = n * 2; }
>+    void set_allocated_size(size_type n) { size_ = (n * 2) + 1; }
>+    bool allocated() const { return size_ % 2; }
>+
>+   private:
>+    size_type size_;
>+  };
>+
>+  // Derives from allocator_type to use the empty base class optimization.
>+  // If the allocator_type is stateless, we can 'store'
>+  // our instance of it for free.
>+  class AllocatorAndTag : private allocator_type {
>+   public:
>+    explicit AllocatorAndTag(const allocator_type& a, Tag t = Tag())
>+        : allocator_type(a), tag_(t) {}
>+    Tag& tag() { return tag_; }
>+    const Tag& tag() const { return tag_; }
>+    allocator_type& allocator() { return *this; }
>+    const allocator_type& allocator() const { return *this; }
>+
>+   private:
>+    Tag tag_;
>+  };
>+
>+  class Allocation {
>+   public:
>+    Allocation(allocator_type& a,  // NOLINT(runtime/references)
>+               size_type capacity)
>+        : capacity_(capacity),
>+          buffer_(AllocatorTraits::allocate(a, capacity_)) {}
>+
>+    void Dealloc(allocator_type& a) {  // NOLINT(runtime/references)
>+      AllocatorTraits::deallocate(a, buffer(), capacity());
>+    }
>+
>+    size_type capacity() const { return capacity_; }
>+    const value_type* buffer() const { return buffer_; }
>+    value_type* buffer() { return buffer_; }
>+
>+   private:
>+    size_type capacity_;
>+    value_type* buffer_;
>+  };
>+
>+  const Tag& tag() const { return allocator_and_tag_.tag(); }
>+  Tag& tag() { return allocator_and_tag_.tag(); }
>+
>+  Allocation& allocation() {
>+    return reinterpret_cast<Allocation&>(rep_.allocation_storage.allocation);
>+  }
>+  const Allocation& allocation() const {
>+    return reinterpret_cast<const Allocation&>(
>+        rep_.allocation_storage.allocation);
>+  }
>+  void init_allocation(const Allocation& allocation) {
>+    new (&rep_.allocation_storage.allocation) Allocation(allocation);
>+  }
>+
>+  // TODO(absl-team): investigate whether the reinterpret_cast is appropriate.
>+  value_type* inlined_space() {
>+    return reinterpret_cast<value_type*>(
>+        std::addressof(rep_.inlined_storage.inlined[0]));
>+  }
>+  const value_type* inlined_space() const {
>+    return reinterpret_cast<const value_type*>(
>+        std::addressof(rep_.inlined_storage.inlined[0]));
>+  }
>+
>+  value_type* allocated_space() { return allocation().buffer(); }
>+  const value_type* allocated_space() const { return allocation().buffer(); }
>+
>+  const allocator_type& allocator() const {
>+    return allocator_and_tag_.allocator();
>+  }
>+  allocator_type& allocator() { return allocator_and_tag_.allocator(); }
>+
>+  bool allocated() const { return tag().allocated(); }
>+
>+  // Enlarge the underlying representation so we can store size_ + delta elems.
>+  // The size is not changed, and any newly added memory is not initialized.
>+  void EnlargeBy(size_type delta);
>+
>+  // Shift all elements from position to end() n places to the right.
>+  // If the vector needs to be enlarged, memory will be allocated.
>+  // Returns iterators pointing to the start of the previously-initialized
>+  // portion and the start of the uninitialized portion of the created gap.
>+  // The number of initialized spots is pair.second - pair.first;
>+  // the number of raw spots is n - (pair.second - pair.first).
>+  //
>+  // Updates the size of the InlinedVector internally.
>+  std::pair<iterator, iterator> ShiftRight(const_iterator position,
>+                                           size_type n);
>+
>+  void ResetAllocation(Allocation new_allocation, size_type new_size) {
>+    if (allocated()) {
>+      Destroy(allocated_space(), allocated_space() + size());
>+      assert(begin() == allocated_space());
>+      allocation().Dealloc(allocator());
>+      allocation() = new_allocation;
>+    } else {
>+      Destroy(inlined_space(), inlined_space() + size());
>+      init_allocation(new_allocation);  // bug: only init once
>+    }
>+    tag().set_allocated_size(new_size);
>+  }
>+
>+  template <typename... Args>
>+  value_type& GrowAndEmplaceBack(Args&&... args) {
>+    assert(size() == capacity());
>+    const size_type s = size();
>+
>+    Allocation new_allocation(allocator(), 2 * capacity());
>+
>+    value_type& new_element =
>+        Construct(new_allocation.buffer() + s, std::forward<Args>(args)...);
>+    UninitializedCopy(std::make_move_iterator(data()),
>+                      std::make_move_iterator(data() + s),
>+                      new_allocation.buffer());
>+
>+    ResetAllocation(new_allocation, s + 1);
>+
>+    return new_element;
>+  }
>+
>+  void InitAssign(size_type n);
>+  void InitAssign(size_type n, const value_type& t);
>+
>+  template <typename... Args>
>+  value_type& Construct(pointer p, Args&&... args) {
>+    AllocatorTraits::construct(allocator(), p, std::forward<Args>(args)...);
>+    return *p;
>+  }
>+
>+  template <typename Iter>
>+  void UninitializedCopy(Iter src, Iter src_last, value_type* dst) {
>+    for (; src != src_last; ++dst, ++src) Construct(dst, *src);
>+  }
>+
>+  template <typename... Args>
>+  void UninitializedFill(value_type* dst, value_type* dst_last,
>+                         const Args&... args) {
>+    for (; dst != dst_last; ++dst) Construct(dst, args...);
>+  }
>+
>+  // Destroy [ptr, ptr_last) in place.
>+  void Destroy(value_type* ptr, value_type* ptr_last);
>+
>+  template <typename Iter>
>+  void AppendRange(Iter first, Iter last, std::input_iterator_tag) {
>+    std::copy(first, last, std::back_inserter(*this));
>+  }
>+
>+  // Faster path for forward iterators.
>+  template <typename Iter>
>+  void AppendRange(Iter first, Iter last, std::forward_iterator_tag);
>+
>+  template <typename Iter>
>+  void AppendRange(Iter first, Iter last) {
>+    using IterTag = typename std::iterator_traits<Iter>::iterator_category;
>+    AppendRange(first, last, IterTag());
>+  }
>+
>+  template <typename Iter>
>+  void AssignRange(Iter first, Iter last, std::input_iterator_tag);
>+
>+  // Faster path for forward iterators.
>+  template <typename Iter>
>+  void AssignRange(Iter first, Iter last, std::forward_iterator_tag);
>+
>+  template <typename Iter>
>+  void AssignRange(Iter first, Iter last) {
>+    using IterTag = typename std::iterator_traits<Iter>::iterator_category;
>+    AssignRange(first, last, IterTag());
>+  }
>+
>+  iterator InsertWithCount(const_iterator position, size_type n,
>+                           const value_type& v);
>+
>+  template <typename InputIter>
>+  iterator InsertWithRange(const_iterator position, InputIter first,
>+                           InputIter last, std::input_iterator_tag);
>+  template <typename ForwardIter>
>+  iterator InsertWithRange(const_iterator position, ForwardIter first,
>+                           ForwardIter last, std::forward_iterator_tag);
>+
>+  AllocatorAndTag allocator_and_tag_;
>+
>+  // Either the inlined or allocated representation
>+  union Rep {
>+    // Use struct to perform indirection that solves a bizarre compilation
>+    // error on Visual Studio (all known versions).
>+    struct {
>+      typename std::aligned_storage<sizeof(value_type),
>+                                    alignof(value_type)>::type inlined[N];
>+    } inlined_storage;
>+    struct {
>+      typename std::aligned_storage<sizeof(Allocation),
>+                                    alignof(Allocation)>::type allocation;
>+    } allocation_storage;
>+  } rep_;
>+};
>+
>+// -----------------------------------------------------------------------------
>+// InlinedVector Non-Member Functions
>+// -----------------------------------------------------------------------------
>+
>+// swap()
>+//
>+// Swaps the contents of two inlined vectors. This convenience function
>+// simply calls InlinedVector::swap(other_inlined_vector).
>+template <typename T, size_t N, typename A>
>+void swap(InlinedVector<T, N, A>& a,
>+          InlinedVector<T, N, A>& b) noexcept(noexcept(a.swap(b))) {
>+  a.swap(b);
>+}
>+
>+// operator==()
>+//
>+// Tests the equivalency of the contents of two inlined vectors.
>+template <typename T, size_t N, typename A>
>+bool operator==(const InlinedVector<T, N, A>& a,
>+                const InlinedVector<T, N, A>& b) {
>+  return absl::equal(a.begin(), a.end(), b.begin(), b.end());
>+}
>+
>+// operator!=()
>+//
>+// Tests the inequality of the contents of two inlined vectors.
>+template <typename T, size_t N, typename A>
>+bool operator!=(const InlinedVector<T, N, A>& a,
>+                const InlinedVector<T, N, A>& b) {
>+  return !(a == b);
>+}
>+
>+// operator<()
>+//
>+// Tests whether the contents of one inlined vector are less than the contents
>+// of another through a lexicographical comparison operation.
>+template <typename T, size_t N, typename A>
>+bool operator<(const InlinedVector<T, N, A>& a,
>+               const InlinedVector<T, N, A>& b) {
>+  return std::lexicographical_compare(a.begin(), a.end(), b.begin(), b.end());
>+}
>+
>+// operator>()
>+//
>+// Tests whether the contents of one inlined vector are greater than the
>+// contents of another through a lexicographical comparison operation.
>+template <typename T, size_t N, typename A>
>+bool operator>(const InlinedVector<T, N, A>& a,
>+               const InlinedVector<T, N, A>& b) {
>+  return b < a;
>+}
>+
>+// operator<=()
>+//
>+// Tests whether the contents of one inlined vector are less than or equal to
>+// the contents of another through a lexicographical comparison operation.
>+template <typename T, size_t N, typename A>
>+bool operator<=(const InlinedVector<T, N, A>& a,
>+                const InlinedVector<T, N, A>& b) {
>+  return !(b < a);
>+}
>+
>+// operator>=()
>+//
>+// Tests whether the contents of one inlined vector are greater than or equal to
>+// the contents of another through a lexicographical comparison operation.
>+template <typename T, size_t N, typename A>
>+bool operator>=(const InlinedVector<T, N, A>& a,
>+                const InlinedVector<T, N, A>& b) {
>+  return !(a < b);
>+}
>+
>+// -----------------------------------------------------------------------------
>+// Implementation of InlinedVector
>+// -----------------------------------------------------------------------------
>+//
>+// Do not depend on any implementation details below this line.
>+
>+template <typename T, size_t N, typename A>
>+InlinedVector<T, N, A>::InlinedVector(const InlinedVector& v)
>+    : allocator_and_tag_(v.allocator()) {
>+  reserve(v.size());
>+  if (allocated()) {
>+    UninitializedCopy(v.begin(), v.end(), allocated_space());
>+    tag().set_allocated_size(v.size());
>+  } else {
>+    UninitializedCopy(v.begin(), v.end(), inlined_space());
>+    tag().set_inline_size(v.size());
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+InlinedVector<T, N, A>::InlinedVector(const InlinedVector& v,
>+                                      const allocator_type& alloc)
>+    : allocator_and_tag_(alloc) {
>+  reserve(v.size());
>+  if (allocated()) {
>+    UninitializedCopy(v.begin(), v.end(), allocated_space());
>+    tag().set_allocated_size(v.size());
>+  } else {
>+    UninitializedCopy(v.begin(), v.end(), inlined_space());
>+    tag().set_inline_size(v.size());
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+InlinedVector<T, N, A>::InlinedVector(InlinedVector&& v) noexcept(
>+    absl::allocator_is_nothrow<allocator_type>::value ||
>+    std::is_nothrow_move_constructible<value_type>::value)
>+    : allocator_and_tag_(v.allocator_and_tag_) {
>+  if (v.allocated()) {
>+    // We can just steal the underlying buffer from the source.
>+    // That leaves the source empty, so we clear its size.
>+    init_allocation(v.allocation());
>+    v.tag() = Tag();
>+  } else {
>+    UninitializedCopy(std::make_move_iterator(v.inlined_space()),
>+                      std::make_move_iterator(v.inlined_space() + v.size()),
>+                      inlined_space());
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+InlinedVector<T, N, A>::InlinedVector(
>+    InlinedVector&& v,
>+    const allocator_type&
>+        alloc) noexcept(absl::allocator_is_nothrow<allocator_type>::value)
>+    : allocator_and_tag_(alloc) {
>+  if (v.allocated()) {
>+    if (alloc == v.allocator()) {
>+      // We can just steal the allocation from the source.
>+      tag() = v.tag();
>+      init_allocation(v.allocation());
>+      v.tag() = Tag();
>+    } else {
>+      // We need to use our own allocator
>+      reserve(v.size());
>+      UninitializedCopy(std::make_move_iterator(v.begin()),
>+                        std::make_move_iterator(v.end()), allocated_space());
>+      tag().set_allocated_size(v.size());
>+    }
>+  } else {
>+    UninitializedCopy(std::make_move_iterator(v.inlined_space()),
>+                      std::make_move_iterator(v.inlined_space() + v.size()),
>+                      inlined_space());
>+    tag().set_inline_size(v.size());
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::InitAssign(size_type n, const value_type& t) {
>+  if (n > static_cast<size_type>(N)) {
>+    Allocation new_allocation(allocator(), n);
>+    init_allocation(new_allocation);
>+    UninitializedFill(allocated_space(), allocated_space() + n, t);
>+    tag().set_allocated_size(n);
>+  } else {
>+    UninitializedFill(inlined_space(), inlined_space() + n, t);
>+    tag().set_inline_size(n);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::InitAssign(size_type n) {
>+  if (n > static_cast<size_type>(N)) {
>+    Allocation new_allocation(allocator(), n);
>+    init_allocation(new_allocation);
>+    UninitializedFill(allocated_space(), allocated_space() + n);
>+    tag().set_allocated_size(n);
>+  } else {
>+    UninitializedFill(inlined_space(), inlined_space() + n);
>+    tag().set_inline_size(n);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::resize(size_type n) {
>+  size_type s = size();
>+  if (n < s) {
>+    erase(begin() + n, end());
>+    return;
>+  }
>+  reserve(n);
>+  assert(capacity() >= n);
>+
>+  // Fill new space with elements constructed in-place.
>+  if (allocated()) {
>+    UninitializedFill(allocated_space() + s, allocated_space() + n);
>+    tag().set_allocated_size(n);
>+  } else {
>+    UninitializedFill(inlined_space() + s, inlined_space() + n);
>+    tag().set_inline_size(n);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::resize(size_type n, const value_type& elem) {
>+  size_type s = size();
>+  if (n < s) {
>+    erase(begin() + n, end());
>+    return;
>+  }
>+  reserve(n);
>+  assert(capacity() >= n);
>+
>+  // Fill new space with copies of 'elem'.
>+  if (allocated()) {
>+    UninitializedFill(allocated_space() + s, allocated_space() + n, elem);
>+    tag().set_allocated_size(n);
>+  } else {
>+    UninitializedFill(inlined_space() + s, inlined_space() + n, elem);
>+    tag().set_inline_size(n);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+template <typename... Args>
>+typename InlinedVector<T, N, A>::iterator InlinedVector<T, N, A>::emplace(
>+    const_iterator position, Args&&... args) {
>+  assert(position >= begin());
>+  assert(position <= end());
>+  if (position == end()) {
>+    emplace_back(std::forward<Args>(args)...);
>+    return end() - 1;
>+  }
>+
>+  T new_t = T(std::forward<Args>(args)...);
>+
>+  auto range = ShiftRight(position, 1);
>+  if (range.first == range.second) {
>+    // constructing into uninitialized memory
>+    Construct(range.first, std::move(new_t));
>+  } else {
>+    // assigning into moved-from object
>+    *range.first = T(std::move(new_t));
>+  }
>+
>+  return range.first;
>+}
>+
>+template <typename T, size_t N, typename A>
>+typename InlinedVector<T, N, A>::iterator InlinedVector<T, N, A>::erase(
>+    const_iterator first, const_iterator last) {
>+  assert(begin() <= first);
>+  assert(first <= last);
>+  assert(last <= end());
>+
>+  iterator range_start = const_cast<iterator>(first);
>+  iterator range_end = const_cast<iterator>(last);
>+
>+  size_type s = size();
>+  ptrdiff_t erase_gap = std::distance(range_start, range_end);
>+  if (erase_gap > 0) {
>+    pointer space;
>+    if (allocated()) {
>+      space = allocated_space();
>+      tag().set_allocated_size(s - erase_gap);
>+    } else {
>+      space = inlined_space();
>+      tag().set_inline_size(s - erase_gap);
>+    }
>+    std::move(range_end, space + s, range_start);
>+    Destroy(space + s - erase_gap, space + s);
>+  }
>+  return range_start;
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::swap(InlinedVector& other) {
>+  using std::swap;  // Augment ADL with std::swap.
>+  if (&other == this) {
>+    return;
>+  }
>+  if (allocated() && other.allocated()) {
>+    // Both out of line, so just swap the tag, allocation, and allocator.
>+    swap(tag(), other.tag());
>+    swap(allocation(), other.allocation());
>+    swap(allocator(), other.allocator());
>+    return;
>+  }
>+  if (!allocated() && !other.allocated()) {
>+    // Both inlined: swap up to smaller size, then move remaining elements.
>+    InlinedVector* a = this;
>+    InlinedVector* b = &other;
>+    if (size() < other.size()) {
>+      swap(a, b);
>+    }
>+
>+    const size_type a_size = a->size();
>+    const size_type b_size = b->size();
>+    assert(a_size >= b_size);
>+    // 'a' is larger. Swap the elements up to the smaller array size.
>+    std::swap_ranges(a->inlined_space(), a->inlined_space() + b_size,
>+                     b->inlined_space());
>+
>+    // Move the remaining elements: A[b_size,a_size) -> B[b_size,a_size)
>+    b->UninitializedCopy(a->inlined_space() + b_size,
>+                         a->inlined_space() + a_size,
>+                         b->inlined_space() + b_size);
>+    a->Destroy(a->inlined_space() + b_size, a->inlined_space() + a_size);
>+
>+    swap(a->tag(), b->tag());
>+    swap(a->allocator(), b->allocator());
>+    assert(b->size() == a_size);
>+    assert(a->size() == b_size);
>+    return;
>+  }
>+  // One is out of line, one is inline.
>+  // We first move the elements from the inlined vector into the
>+  // inlined space in the other vector.  We then put the other vector's
>+  // pointer/capacity into the originally inlined vector and swap
>+  // the tags.
>+  InlinedVector* a = this;
>+  InlinedVector* b = &other;
>+  if (a->allocated()) {
>+    swap(a, b);
>+  }
>+  assert(!a->allocated());
>+  assert(b->allocated());
>+  const size_type a_size = a->size();
>+  const size_type b_size = b->size();
>+  // In an optimized build, b_size would be unused.
>+  (void)b_size;
>+
>+  // Made Local copies of size(), don't need tag() accurate anymore
>+  swap(a->tag(), b->tag());
>+
>+  // Copy b_allocation out before b's union gets clobbered by inline_space.
>+  Allocation b_allocation = b->allocation();
>+
>+  b->UninitializedCopy(a->inlined_space(), a->inlined_space() + a_size,
>+                       b->inlined_space());
>+  a->Destroy(a->inlined_space(), a->inlined_space() + a_size);
>+
>+  a->allocation() = b_allocation;
>+
>+  if (a->allocator() != b->allocator()) {
>+    swap(a->allocator(), b->allocator());
>+  }
>+
>+  assert(b->size() == a_size);
>+  assert(a->size() == b_size);
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::EnlargeBy(size_type delta) {
>+  const size_type s = size();
>+  assert(s <= capacity());
>+
>+  size_type target = std::max(static_cast<size_type>(N), s + delta);
>+
>+  // Compute new capacity by repeatedly doubling current capacity
>+  // TODO(psrc): Check and avoid overflow?
>+  size_type new_capacity = capacity();
>+  while (new_capacity < target) {
>+    new_capacity <<= 1;
>+  }
>+
>+  Allocation new_allocation(allocator(), new_capacity);
>+
>+  UninitializedCopy(std::make_move_iterator(data()),
>+                    std::make_move_iterator(data() + s),
>+                    new_allocation.buffer());
>+
>+  ResetAllocation(new_allocation, s);
>+}
>+
>+template <typename T, size_t N, typename A>
>+auto InlinedVector<T, N, A>::ShiftRight(const_iterator position, size_type n)
>+    -> std::pair<iterator, iterator> {
>+  iterator start_used = const_cast<iterator>(position);
>+  iterator start_raw = const_cast<iterator>(position);
>+  size_type s = size();
>+  size_type required_size = s + n;
>+
>+  if (required_size > capacity()) {
>+    // Compute new capacity by repeatedly doubling current capacity
>+    size_type new_capacity = capacity();
>+    while (new_capacity < required_size) {
>+      new_capacity <<= 1;
>+    }
>+    // Move everyone into the new allocation, leaving a gap of n for the
>+    // requested shift.
>+    Allocation new_allocation(allocator(), new_capacity);
>+    size_type index = position - begin();
>+    UninitializedCopy(std::make_move_iterator(data()),
>+                      std::make_move_iterator(data() + index),
>+                      new_allocation.buffer());
>+    UninitializedCopy(std::make_move_iterator(data() + index),
>+                      std::make_move_iterator(data() + s),
>+                      new_allocation.buffer() + index + n);
>+    ResetAllocation(new_allocation, s);
>+
>+    // New allocation means our iterator is invalid, so we'll recalculate.
>+    // Since the entire gap is in new space, there's no used space to reuse.
>+    start_raw = begin() + index;
>+    start_used = start_raw;
>+  } else {
>+    // If we had enough space, it's a two-part move. Elements going into
>+    // previously-unoccupied space need an UninitializedCopy. Elements
>+    // going into a previously-occupied space are just a move.
>+    iterator pos = const_cast<iterator>(position);
>+    iterator raw_space = end();
>+    size_type slots_in_used_space = raw_space - pos;
>+    size_type new_elements_in_used_space = std::min(n, slots_in_used_space);
>+    size_type new_elements_in_raw_space = n - new_elements_in_used_space;
>+    size_type old_elements_in_used_space =
>+        slots_in_used_space - new_elements_in_used_space;
>+
>+    UninitializedCopy(std::make_move_iterator(pos + old_elements_in_used_space),
>+                      std::make_move_iterator(raw_space),
>+                      raw_space + new_elements_in_raw_space);
>+    std::move_backward(pos, pos + old_elements_in_used_space, raw_space);
>+
>+    // If the gap is entirely in raw space, the used space starts where the raw
>+    // space starts, leaving no elements in used space. If the gap is entirely
>+    // in used space, the raw space starts at the end of the gap, leaving all
>+    // elements accounted for within the used space.
>+    start_used = pos;
>+    start_raw = pos + new_elements_in_used_space;
>+  }
>+  tag().add_size(n);
>+  return std::make_pair(start_used, start_raw);
>+}
>+
>+template <typename T, size_t N, typename A>
>+void InlinedVector<T, N, A>::Destroy(value_type* ptr, value_type* ptr_last) {
>+  for (value_type* p = ptr; p != ptr_last; ++p) {
>+    AllocatorTraits::destroy(allocator(), p);
>+  }
>+
>+  // Overwrite unused memory with 0xab so we can catch uninitialized usage.
>+  // Cast to void* to tell the compiler that we don't care that we might be
>+  // scribbling on a vtable pointer.
>+#ifndef NDEBUG
>+  if (ptr != ptr_last) {
>+    memset(reinterpret_cast<void*>(ptr), 0xab, sizeof(*ptr) * (ptr_last - ptr));
>+  }
>+#endif
>+}
>+
>+template <typename T, size_t N, typename A>
>+template <typename Iter>
>+void InlinedVector<T, N, A>::AppendRange(Iter first, Iter last,
>+                                         std::forward_iterator_tag) {
>+  using Length = typename std::iterator_traits<Iter>::difference_type;
>+  Length length = std::distance(first, last);
>+  reserve(size() + length);
>+  if (allocated()) {
>+    UninitializedCopy(first, last, allocated_space() + size());
>+    tag().set_allocated_size(size() + length);
>+  } else {
>+    UninitializedCopy(first, last, inlined_space() + size());
>+    tag().set_inline_size(size() + length);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+template <typename Iter>
>+void InlinedVector<T, N, A>::AssignRange(Iter first, Iter last,
>+                                         std::input_iterator_tag) {
>+  // Optimized to avoid reallocation.
>+  // Prefer reassignment to copy construction for elements.
>+  iterator out = begin();
>+  for (; first != last && out != end(); ++first, ++out) {
>+    *out = *first;
>+  }
>+  erase(out, end());
>+  std::copy(first, last, std::back_inserter(*this));
>+}
>+
>+template <typename T, size_t N, typename A>
>+template <typename Iter>
>+void InlinedVector<T, N, A>::AssignRange(Iter first, Iter last,
>+                                         std::forward_iterator_tag) {
>+  using Length = typename std::iterator_traits<Iter>::difference_type;
>+  Length length = std::distance(first, last);
>+  // Prefer reassignment to copy construction for elements.
>+  if (static_cast<size_type>(length) <= size()) {
>+    erase(std::copy(first, last, begin()), end());
>+    return;
>+  }
>+  reserve(length);
>+  iterator out = begin();
>+  for (; out != end(); ++first, ++out) *out = *first;
>+  if (allocated()) {
>+    UninitializedCopy(first, last, out);
>+    tag().set_allocated_size(length);
>+  } else {
>+    UninitializedCopy(first, last, out);
>+    tag().set_inline_size(length);
>+  }
>+}
>+
>+template <typename T, size_t N, typename A>
>+auto InlinedVector<T, N, A>::InsertWithCount(const_iterator position,
>+                                             size_type n, const value_type& v)
>+    -> iterator {
>+  assert(position >= begin() && position <= end());
>+  if (n == 0) return const_cast<iterator>(position);
>+
>+  value_type copy = v;
>+  std::pair<iterator, iterator> it_pair = ShiftRight(position, n);
>+  std::fill(it_pair.first, it_pair.second, copy);
>+  UninitializedFill(it_pair.second, it_pair.first + n, copy);
>+
>+  return it_pair.first;
>+}
>+
>+template <typename T, size_t N, typename A>
>+template <typename InputIter>
>+auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
>+                                             InputIter first, InputIter last,
>+                                             std::input_iterator_tag)
>+    -> iterator {
>+  assert(position >= begin() && position <= end());
>+  size_type index = position - cbegin();
>+  size_type i = index;
>+  while (first != last) insert(begin() + i++, *first++);
>+  return begin() + index;
>+}
>+
>+// Overload of InlinedVector::InsertWithRange()
>+template <typename T, size_t N, typename A>
>+template <typename ForwardIter>
>+auto InlinedVector<T, N, A>::InsertWithRange(const_iterator position,
>+                                             ForwardIter first,
>+                                             ForwardIter last,
>+                                             std::forward_iterator_tag)
>+    -> iterator {
>+  assert(position >= begin() && position <= end());
>+  if (first == last) {
>+    return const_cast<iterator>(position);
>+  }
>+  using Length = typename std::iterator_traits<ForwardIter>::difference_type;
>+  Length n = std::distance(first, last);
>+  std::pair<iterator, iterator> it_pair = ShiftRight(position, n);
>+  size_type used_spots = it_pair.second - it_pair.first;
>+  ForwardIter open_spot = std::next(first, used_spots);
>+  std::copy(first, open_spot, it_pair.first);
>+  UninitializedCopy(open_spot, last, it_pair.second);
>+  return it_pair.first;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_CONTAINER_INLINED_VECTOR_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..24f2174928a38b01fef99ae27cb89e4198265ab3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_benchmark.cc
>@@ -0,0 +1,385 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/inlined_vector.h"
>+
>+#include <string>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+using IntVec = absl::InlinedVector<int, 8>;
>+
>+void BM_InlinedVectorFill(benchmark::State& state) {
>+  const int len = state.range(0);
>+  for (auto _ : state) {
>+    IntVec v;
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(i);
>+    }
>+  }
>+  state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) * len);
>+}
>+BENCHMARK(BM_InlinedVectorFill)->Range(0, 1024);
>+
>+void BM_InlinedVectorFillRange(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::unique_ptr<int[]> ia(new int[len]);
>+  for (int i = 0; i < len; i++) {
>+    ia[i] = i;
>+  }
>+  for (auto _ : state) {
>+    IntVec v(ia.get(), ia.get() + len);
>+    benchmark::DoNotOptimize(v);
>+  }
>+  state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) * len);
>+}
>+BENCHMARK(BM_InlinedVectorFillRange)->Range(0, 1024);
>+
>+void BM_StdVectorFill(benchmark::State& state) {
>+  const int len = state.range(0);
>+  for (auto _ : state) {
>+    std::vector<int> v;
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(i);
>+    }
>+  }
>+  state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) * len);
>+}
>+BENCHMARK(BM_StdVectorFill)->Range(0, 1024);
>+
>+// The purpose of the next two benchmarks is to verify that
>+// absl::InlinedVector is efficient when moving is more efficent than
>+// copying. To do so, we use strings that are larger than the short
>+// std::string optimization.
>+bool StringRepresentedInline(std::string s) {
>+  const char* chars = s.data();
>+  std::string s1 = std::move(s);
>+  return s1.data() != chars;
>+}
>+
>+int GetNonShortStringOptimizationSize() {
>+  for (int i = 24; i <= 192; i *= 2) {
>+    if (!StringRepresentedInline(std::string(i, 'A'))) {
>+      return i;
>+    }
>+  }
>+  ABSL_RAW_LOG(
>+      FATAL,
>+      "Failed to find a std::string larger than the short std::string optimization");
>+  return -1;
>+}
>+
>+void BM_InlinedVectorFillString(benchmark::State& state) {
>+  const int len = state.range(0);
>+  const int no_sso = GetNonShortStringOptimizationSize();
>+  std::string strings[4] = {std::string(no_sso, 'A'), std::string(no_sso, 'B'),
>+                       std::string(no_sso, 'C'), std::string(no_sso, 'D')};
>+
>+  for (auto _ : state) {
>+    absl::InlinedVector<std::string, 8> v;
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(strings[i & 3]);
>+    }
>+  }
>+  state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) * len);
>+}
>+BENCHMARK(BM_InlinedVectorFillString)->Range(0, 1024);
>+
>+void BM_StdVectorFillString(benchmark::State& state) {
>+  const int len = state.range(0);
>+  const int no_sso = GetNonShortStringOptimizationSize();
>+  std::string strings[4] = {std::string(no_sso, 'A'), std::string(no_sso, 'B'),
>+                       std::string(no_sso, 'C'), std::string(no_sso, 'D')};
>+
>+  for (auto _ : state) {
>+    std::vector<std::string> v;
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(strings[i & 3]);
>+    }
>+  }
>+  state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) * len);
>+}
>+BENCHMARK(BM_StdVectorFillString)->Range(0, 1024);
>+
>+struct Buffer {  // some arbitrary structure for benchmarking.
>+  char* base;
>+  int length;
>+  int capacity;
>+  void* user_data;
>+};
>+
>+void BM_InlinedVectorTenAssignments(benchmark::State& state) {
>+  const int len = state.range(0);
>+  using BufferVec = absl::InlinedVector<Buffer, 2>;
>+
>+  BufferVec src;
>+  src.resize(len);
>+
>+  BufferVec dst;
>+  for (auto _ : state) {
>+    for (int i = 0; i < 10; ++i) {
>+      dst = src;
>+    }
>+  }
>+}
>+BENCHMARK(BM_InlinedVectorTenAssignments)
>+    ->Arg(0)->Arg(1)->Arg(2)->Arg(3)->Arg(4)->Arg(20);
>+
>+void BM_CreateFromContainer(benchmark::State& state) {
>+  for (auto _ : state) {
>+    absl::InlinedVector<int, 4> x(absl::InlinedVector<int, 4>{1, 2, 3});
>+    benchmark::DoNotOptimize(x);
>+  }
>+}
>+BENCHMARK(BM_CreateFromContainer);
>+
>+struct LargeCopyableOnly {
>+  LargeCopyableOnly() : d(1024, 17) {}
>+  LargeCopyableOnly(const LargeCopyableOnly& o) = default;
>+  LargeCopyableOnly& operator=(const LargeCopyableOnly& o) = default;
>+
>+  std::vector<int> d;
>+};
>+
>+struct LargeCopyableSwappable {
>+  LargeCopyableSwappable() : d(1024, 17) {}
>+  LargeCopyableSwappable(const LargeCopyableSwappable& o) = default;
>+  LargeCopyableSwappable(LargeCopyableSwappable&& o) = delete;
>+
>+  LargeCopyableSwappable& operator=(LargeCopyableSwappable o) {
>+    using std::swap;
>+    swap(*this, o);
>+    return *this;
>+  }
>+  LargeCopyableSwappable& operator=(LargeCopyableSwappable&& o) = delete;
>+
>+  friend void swap(LargeCopyableSwappable& a, LargeCopyableSwappable& b) {
>+    using std::swap;
>+    swap(a.d, b.d);
>+  }
>+
>+  std::vector<int> d;
>+};
>+
>+struct LargeCopyableMovable {
>+  LargeCopyableMovable() : d(1024, 17) {}
>+  // Use implicitly defined copy and move.
>+
>+  std::vector<int> d;
>+};
>+
>+struct LargeCopyableMovableSwappable {
>+  LargeCopyableMovableSwappable() : d(1024, 17) {}
>+  LargeCopyableMovableSwappable(const LargeCopyableMovableSwappable& o) =
>+      default;
>+  LargeCopyableMovableSwappable(LargeCopyableMovableSwappable&& o) = default;
>+
>+  LargeCopyableMovableSwappable& operator=(LargeCopyableMovableSwappable o) {
>+    using std::swap;
>+    swap(*this, o);
>+    return *this;
>+  }
>+  LargeCopyableMovableSwappable& operator=(LargeCopyableMovableSwappable&& o) =
>+      default;
>+
>+  friend void swap(LargeCopyableMovableSwappable& a,
>+                   LargeCopyableMovableSwappable& b) {
>+    using std::swap;
>+    swap(a.d, b.d);
>+  }
>+
>+  std::vector<int> d;
>+};
>+
>+template <typename ElementType>
>+void BM_SwapElements(benchmark::State& state) {
>+  const int len = state.range(0);
>+  using Vec = absl::InlinedVector<ElementType, 32>;
>+  Vec a(len);
>+  Vec b;
>+  for (auto _ : state) {
>+    using std::swap;
>+    swap(a, b);
>+  }
>+}
>+BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableOnly)->Range(0, 1024);
>+BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableSwappable)->Range(0, 1024);
>+BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableMovable)->Range(0, 1024);
>+BENCHMARK_TEMPLATE(BM_SwapElements, LargeCopyableMovableSwappable)
>+    ->Range(0, 1024);
>+
>+// The following benchmark is meant to track the efficiency of the vector size
>+// as a function of stored type via the benchmark label. It is not meant to
>+// output useful sizeof operator performance. The loop is a dummy operation
>+// to fulfill the requirement of running the benchmark.
>+template <typename VecType>
>+void BM_Sizeof(benchmark::State& state) {
>+  int size = 0;
>+  for (auto _ : state) {
>+    VecType vec;
>+    size = sizeof(vec);
>+  }
>+  state.SetLabel(absl::StrCat("sz=", size));
>+}
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<char, 1>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<char, 4>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<char, 7>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<char, 8>);
>+
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<int, 1>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<int, 4>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<int, 7>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<int, 8>);
>+
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<void*, 1>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<void*, 4>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<void*, 7>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<void*, 8>);
>+
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<std::string, 1>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<std::string, 4>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<std::string, 7>);
>+BENCHMARK_TEMPLATE(BM_Sizeof, absl::InlinedVector<std::string, 8>);
>+
>+void BM_InlinedVectorIndexInlined(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7};
>+  for (auto _ : state) {
>+    for (int i = 0; i < 1000; ++i) {
>+      benchmark::DoNotOptimize(v);
>+      benchmark::DoNotOptimize(v[4]);
>+    }
>+  }
>+  state.SetItemsProcessed(1000 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorIndexInlined);
>+
>+void BM_InlinedVectorIndexExternal(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    for (int i = 0; i < 1000; ++i) {
>+      benchmark::DoNotOptimize(v);
>+      benchmark::DoNotOptimize(v[4]);
>+    }
>+  }
>+  state.SetItemsProcessed(1000 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorIndexExternal);
>+
>+void BM_StdVectorIndex(benchmark::State& state) {
>+  std::vector<int> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    for (int i = 0; i < 1000; ++i) {
>+      benchmark::DoNotOptimize(v);
>+      benchmark::DoNotOptimize(v[4]);
>+    }
>+  }
>+  state.SetItemsProcessed(1000 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_StdVectorIndex);
>+
>+#define UNROLL_2(x)            \
>+  benchmark::DoNotOptimize(x); \
>+  benchmark::DoNotOptimize(x);
>+
>+#define UNROLL_4(x) UNROLL_2(x) UNROLL_2(x)
>+#define UNROLL_8(x) UNROLL_4(x) UNROLL_4(x)
>+#define UNROLL_16(x) UNROLL_8(x) UNROLL_8(x);
>+
>+void BM_InlinedVectorDataInlined(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7};
>+  for (auto _ : state) {
>+    UNROLL_16(v.data());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorDataInlined);
>+
>+void BM_InlinedVectorDataExternal(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.data());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorDataExternal);
>+
>+void BM_StdVectorData(benchmark::State& state) {
>+  std::vector<int> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.data());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_StdVectorData);
>+
>+void BM_InlinedVectorSizeInlined(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7};
>+  for (auto _ : state) {
>+    UNROLL_16(v.size());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorSizeInlined);
>+
>+void BM_InlinedVectorSizeExternal(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.size());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorSizeExternal);
>+
>+void BM_StdVectorSize(benchmark::State& state) {
>+  std::vector<int> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.size());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_StdVectorSize);
>+
>+void BM_InlinedVectorEmptyInlined(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7};
>+  for (auto _ : state) {
>+    UNROLL_16(v.empty());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorEmptyInlined);
>+
>+void BM_InlinedVectorEmptyExternal(benchmark::State& state) {
>+  absl::InlinedVector<int, 8> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.empty());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_InlinedVectorEmptyExternal);
>+
>+void BM_StdVectorEmpty(benchmark::State& state) {
>+  std::vector<int> v = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
>+  for (auto _ : state) {
>+    UNROLL_16(v.empty());
>+  }
>+  state.SetItemsProcessed(16 * static_cast<int64_t>(state.iterations()));
>+}
>+BENCHMARK(BM_StdVectorEmpty);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..196a1bed976c4bbd060a0c81a30819aced4669b2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/inlined_vector_test.cc
>@@ -0,0 +1,1791 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/inlined_vector.h"
>+
>+#include <algorithm>
>+#include <forward_list>
>+#include <list>
>+#include <memory>
>+#include <scoped_allocator>
>+#include <sstream>
>+#include <stdexcept>
>+#include <string>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/exception_testing.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/macros.h"
>+#include "absl/container/internal/test_instance_tracker.h"
>+#include "absl/memory/memory.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+using absl::test_internal::CopyableMovableInstance;
>+using absl::test_internal::CopyableOnlyInstance;
>+using absl::test_internal::InstanceTracker;
>+using testing::AllOf;
>+using testing::Each;
>+using testing::ElementsAre;
>+using testing::ElementsAreArray;
>+using testing::Eq;
>+using testing::Gt;
>+using testing::PrintToString;
>+
>+using IntVec = absl::InlinedVector<int, 8>;
>+
>+MATCHER_P(SizeIs, n, "") {
>+  return testing::ExplainMatchResult(n, arg.size(), result_listener);
>+}
>+
>+MATCHER_P(CapacityIs, n, "") {
>+  return testing::ExplainMatchResult(n, arg.capacity(), result_listener);
>+}
>+
>+MATCHER_P(ValueIs, e, "") {
>+  return testing::ExplainMatchResult(e, arg.value(), result_listener);
>+}
>+
>+// TODO(bsamwel): Add support for movable-only types.
>+
>+// Test fixture for typed tests on BaseCountedInstance derived classes, see
>+// test_instance_tracker.h.
>+template <typename T>
>+class InstanceTest : public ::testing::Test {};
>+TYPED_TEST_CASE_P(InstanceTest);
>+
>+// A simple reference counted class to make sure that the proper elements are
>+// destroyed in the erase(begin, end) test.
>+class RefCounted {
>+ public:
>+  RefCounted(int value, int* count) : value_(value), count_(count) {
>+    Ref();
>+  }
>+
>+  RefCounted(const RefCounted& v)
>+      : value_(v.value_), count_(v.count_) {
>+    Ref();
>+  }
>+
>+  ~RefCounted() {
>+    Unref();
>+    count_ = nullptr;
>+  }
>+
>+  friend void swap(RefCounted& a, RefCounted& b) {
>+    using std::swap;
>+    swap(a.value_, b.value_);
>+    swap(a.count_, b.count_);
>+  }
>+
>+  RefCounted& operator=(RefCounted v) {
>+    using std::swap;
>+    swap(*this, v);
>+    return *this;
>+  }
>+
>+  void Ref() const {
>+    ABSL_RAW_CHECK(count_ != nullptr, "");
>+    ++(*count_);
>+  }
>+
>+  void Unref() const {
>+    --(*count_);
>+    ABSL_RAW_CHECK(*count_ >= 0, "");
>+  }
>+
>+  int value_;
>+  int* count_;
>+};
>+
>+using RefCountedVec = absl::InlinedVector<RefCounted, 8>;
>+
>+// A class with a vtable pointer
>+class Dynamic {
>+ public:
>+  virtual ~Dynamic() {}
>+};
>+
>+using DynamicVec = absl::InlinedVector<Dynamic, 8>;
>+
>+// Append 0..len-1 to *v
>+template <typename Container>
>+static void Fill(Container* v, int len, int offset = 0) {
>+  for (int i = 0; i < len; i++) {
>+    v->push_back(i + offset);
>+  }
>+}
>+
>+static IntVec Fill(int len, int offset = 0) {
>+  IntVec v;
>+  Fill(&v, len, offset);
>+  return v;
>+}
>+
>+// This is a stateful allocator, but the state lives outside of the
>+// allocator (in whatever test is using the allocator). This is odd
>+// but helps in tests where the allocator is propagated into nested
>+// containers - that chain of allocators uses the same state and is
>+// thus easier to query for aggregate allocation information.
>+template <typename T>
>+class CountingAllocator : public std::allocator<T> {
>+ public:
>+  using Alloc = std::allocator<T>;
>+  using pointer = typename Alloc::pointer;
>+  using size_type = typename Alloc::size_type;
>+
>+  CountingAllocator() : bytes_used_(nullptr) {}
>+  explicit CountingAllocator(int64_t* b) : bytes_used_(b) {}
>+
>+  template <typename U>
>+  CountingAllocator(const CountingAllocator<U>& x)
>+      : Alloc(x), bytes_used_(x.bytes_used_) {}
>+
>+  pointer allocate(size_type n,
>+                   std::allocator<void>::const_pointer hint = nullptr) {
>+    assert(bytes_used_ != nullptr);
>+    *bytes_used_ += n * sizeof(T);
>+    return Alloc::allocate(n, hint);
>+  }
>+
>+  void deallocate(pointer p, size_type n) {
>+    Alloc::deallocate(p, n);
>+    assert(bytes_used_ != nullptr);
>+    *bytes_used_ -= n * sizeof(T);
>+  }
>+
>+  template<typename U>
>+  class rebind {
>+   public:
>+    using other = CountingAllocator<U>;
>+  };
>+
>+  friend bool operator==(const CountingAllocator& a,
>+                         const CountingAllocator& b) {
>+    return a.bytes_used_ == b.bytes_used_;
>+  }
>+
>+  friend bool operator!=(const CountingAllocator& a,
>+                         const CountingAllocator& b) {
>+    return !(a == b);
>+  }
>+
>+  int64_t* bytes_used_;
>+};
>+
>+TEST(IntVec, SimpleOps) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v;
>+    const IntVec& cv = v;  // const alias
>+
>+    Fill(&v, len);
>+    EXPECT_EQ(len, v.size());
>+    EXPECT_LE(len, v.capacity());
>+
>+    for (int i = 0; i < len; i++) {
>+      EXPECT_EQ(i, v[i]);
>+      EXPECT_EQ(i, v.at(i));
>+    }
>+    EXPECT_EQ(v.begin(), v.data());
>+    EXPECT_EQ(cv.begin(), cv.data());
>+
>+    int counter = 0;
>+    for (IntVec::iterator iter = v.begin(); iter != v.end(); ++iter) {
>+      EXPECT_EQ(counter, *iter);
>+      counter++;
>+    }
>+    EXPECT_EQ(counter, len);
>+
>+    counter = 0;
>+    for (IntVec::const_iterator iter = v.begin(); iter != v.end(); ++iter) {
>+      EXPECT_EQ(counter, *iter);
>+      counter++;
>+    }
>+    EXPECT_EQ(counter, len);
>+
>+    counter = 0;
>+    for (IntVec::const_iterator iter = v.cbegin(); iter != v.cend(); ++iter) {
>+      EXPECT_EQ(counter, *iter);
>+      counter++;
>+    }
>+    EXPECT_EQ(counter, len);
>+
>+    if (len > 0) {
>+      EXPECT_EQ(0, v.front());
>+      EXPECT_EQ(len - 1, v.back());
>+      v.pop_back();
>+      EXPECT_EQ(len - 1, v.size());
>+      for (int i = 0; i < v.size(); ++i) {
>+        EXPECT_EQ(i, v[i]);
>+        EXPECT_EQ(i, v.at(i));
>+      }
>+    }
>+  }
>+}
>+
>+TEST(IntVec, AtThrows) {
>+  IntVec v = {1, 2, 3};
>+  EXPECT_EQ(v.at(2), 3);
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL(v.at(3), std::out_of_range,
>+                                 "failed bounds check");
>+}
>+
>+TEST(IntVec, ReverseIterator) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v;
>+    Fill(&v, len);
>+
>+    int counter = len;
>+    for (IntVec::reverse_iterator iter = v.rbegin(); iter != v.rend(); ++iter) {
>+      counter--;
>+      EXPECT_EQ(counter, *iter);
>+    }
>+    EXPECT_EQ(counter, 0);
>+
>+    counter = len;
>+    for (IntVec::const_reverse_iterator iter = v.rbegin(); iter != v.rend();
>+         ++iter) {
>+      counter--;
>+      EXPECT_EQ(counter, *iter);
>+    }
>+    EXPECT_EQ(counter, 0);
>+
>+    counter = len;
>+    for (IntVec::const_reverse_iterator iter = v.crbegin(); iter != v.crend();
>+         ++iter) {
>+      counter--;
>+      EXPECT_EQ(counter, *iter);
>+    }
>+    EXPECT_EQ(counter, 0);
>+  }
>+}
>+
>+TEST(IntVec, Erase) {
>+  for (int len = 1; len < 20; len++) {
>+    for (int i = 0; i < len; ++i) {
>+      IntVec v;
>+      Fill(&v, len);
>+      v.erase(v.begin() + i);
>+      EXPECT_EQ(len - 1, v.size());
>+      for (int j = 0; j < i; ++j) {
>+        EXPECT_EQ(j, v[j]);
>+      }
>+      for (int j = i; j < len - 1; ++j) {
>+        EXPECT_EQ(j + 1, v[j]);
>+      }
>+    }
>+  }
>+}
>+
>+// At the end of this test loop, the elements between [erase_begin, erase_end)
>+// should have reference counts == 0, and all others elements should have
>+// reference counts == 1.
>+TEST(RefCountedVec, EraseBeginEnd) {
>+  for (int len = 1; len < 20; ++len) {
>+    for (int erase_begin = 0; erase_begin < len; ++erase_begin) {
>+      for (int erase_end = erase_begin; erase_end <= len; ++erase_end) {
>+        std::vector<int> counts(len, 0);
>+        RefCountedVec v;
>+        for (int i = 0; i < len; ++i) {
>+          v.push_back(RefCounted(i, &counts[i]));
>+        }
>+
>+        int erase_len = erase_end - erase_begin;
>+
>+        v.erase(v.begin() + erase_begin, v.begin() + erase_end);
>+
>+        EXPECT_EQ(len - erase_len, v.size());
>+
>+        // Check the elements before the first element erased.
>+        for (int i = 0; i < erase_begin; ++i) {
>+          EXPECT_EQ(i, v[i].value_);
>+        }
>+
>+        // Check the elements after the first element erased.
>+        for (int i = erase_begin; i < v.size(); ++i) {
>+          EXPECT_EQ(i + erase_len, v[i].value_);
>+        }
>+
>+        // Check that the elements at the beginning are preserved.
>+        for (int i = 0; i < erase_begin; ++i) {
>+          EXPECT_EQ(1, counts[i]);
>+        }
>+
>+        // Check that the erased elements are destroyed
>+        for (int i = erase_begin; i < erase_end; ++i) {
>+          EXPECT_EQ(0, counts[i]);
>+        }
>+
>+        // Check that the elements at the end are preserved.
>+        for (int i = erase_end; i< len; ++i) {
>+          EXPECT_EQ(1, counts[i]);
>+        }
>+      }
>+    }
>+  }
>+}
>+
>+struct NoDefaultCtor {
>+  explicit NoDefaultCtor(int) {}
>+};
>+struct NoCopy {
>+  NoCopy() {}
>+  NoCopy(const NoCopy&) = delete;
>+};
>+struct NoAssign {
>+  NoAssign() {}
>+  NoAssign& operator=(const NoAssign&) = delete;
>+};
>+struct MoveOnly {
>+  MoveOnly() {}
>+  MoveOnly(MoveOnly&&) = default;
>+  MoveOnly& operator=(MoveOnly&&) = default;
>+};
>+TEST(InlinedVectorTest, NoDefaultCtor) {
>+  absl::InlinedVector<NoDefaultCtor, 1> v(10, NoDefaultCtor(2));
>+  (void)v;
>+}
>+TEST(InlinedVectorTest, NoCopy) {
>+  absl::InlinedVector<NoCopy, 1> v(10);
>+  (void)v;
>+}
>+TEST(InlinedVectorTest, NoAssign) {
>+  absl::InlinedVector<NoAssign, 1> v(10);
>+  (void)v;
>+}
>+TEST(InlinedVectorTest, MoveOnly) {
>+  absl::InlinedVector<MoveOnly, 2> v;
>+  v.push_back(MoveOnly{});
>+  v.push_back(MoveOnly{});
>+  v.push_back(MoveOnly{});
>+  v.erase(v.begin());
>+  v.push_back(MoveOnly{});
>+  v.erase(v.begin(), v.begin() + 1);
>+  v.insert(v.begin(), MoveOnly{});
>+  v.emplace(v.begin());
>+  v.emplace(v.begin(), MoveOnly{});
>+}
>+TEST(InlinedVectorTest, Noexcept) {
>+  EXPECT_TRUE(std::is_nothrow_move_constructible<IntVec>::value);
>+  EXPECT_TRUE((std::is_nothrow_move_constructible<
>+               absl::InlinedVector<MoveOnly, 2>>::value));
>+
>+  struct MoveCanThrow {
>+    MoveCanThrow(MoveCanThrow&&) {}
>+  };
>+  EXPECT_EQ(absl::default_allocator_is_nothrow::value,
>+            (std::is_nothrow_move_constructible<
>+                absl::InlinedVector<MoveCanThrow, 2>>::value));
>+}
>+
>+TEST(InlinedVectorTest, EmplaceBack) {
>+  absl::InlinedVector<std::pair<std::string, int>, 1> v;
>+
>+  auto& inlined_element = v.emplace_back("answer", 42);
>+  EXPECT_EQ(&inlined_element, &v[0]);
>+  EXPECT_EQ(inlined_element.first, "answer");
>+  EXPECT_EQ(inlined_element.second, 42);
>+
>+  auto& allocated_element = v.emplace_back("taxicab", 1729);
>+  EXPECT_EQ(&allocated_element, &v[1]);
>+  EXPECT_EQ(allocated_element.first, "taxicab");
>+  EXPECT_EQ(allocated_element.second, 1729);
>+}
>+
>+TEST(InlinedVectorTest, ShrinkToFitGrowingVector) {
>+  absl::InlinedVector<std::pair<std::string, int>, 1> v;
>+
>+  v.shrink_to_fit();
>+  EXPECT_EQ(v.capacity(), 1);
>+
>+  v.emplace_back("answer", 42);
>+  v.shrink_to_fit();
>+  EXPECT_EQ(v.capacity(), 1);
>+
>+  v.emplace_back("taxicab", 1729);
>+  EXPECT_GE(v.capacity(), 2);
>+  v.shrink_to_fit();
>+  EXPECT_EQ(v.capacity(), 2);
>+
>+  v.reserve(100);
>+  EXPECT_GE(v.capacity(), 100);
>+  v.shrink_to_fit();
>+  EXPECT_EQ(v.capacity(), 2);
>+}
>+
>+TEST(InlinedVectorTest, ShrinkToFitEdgeCases) {
>+  {
>+    absl::InlinedVector<std::pair<std::string, int>, 1> v;
>+    v.emplace_back("answer", 42);
>+    v.emplace_back("taxicab", 1729);
>+    EXPECT_GE(v.capacity(), 2);
>+    v.pop_back();
>+    v.shrink_to_fit();
>+    EXPECT_EQ(v.capacity(), 1);
>+    EXPECT_EQ(v[0].first, "answer");
>+    EXPECT_EQ(v[0].second, 42);
>+  }
>+
>+  {
>+    absl::InlinedVector<std::string, 2> v(100);
>+    v.resize(0);
>+    v.shrink_to_fit();
>+    EXPECT_EQ(v.capacity(), 2);  // inlined capacity
>+  }
>+
>+  {
>+    absl::InlinedVector<std::string, 2> v(100);
>+    v.resize(1);
>+    v.shrink_to_fit();
>+    EXPECT_EQ(v.capacity(), 2);  // inlined capacity
>+  }
>+
>+  {
>+    absl::InlinedVector<std::string, 2> v(100);
>+    v.resize(2);
>+    v.shrink_to_fit();
>+    EXPECT_EQ(v.capacity(), 2);
>+  }
>+
>+  {
>+    absl::InlinedVector<std::string, 2> v(100);
>+    v.resize(3);
>+    v.shrink_to_fit();
>+    EXPECT_EQ(v.capacity(), 3);
>+  }
>+}
>+
>+TEST(IntVec, Insert) {
>+  for (int len = 0; len < 20; len++) {
>+    for (int pos = 0; pos <= len; pos++) {
>+      {
>+        // Single element
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        std_v.insert(std_v.begin() + pos, 9999);
>+        IntVec::iterator it = v.insert(v.cbegin() + pos, 9999);
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+      {
>+        // n elements
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        IntVec::size_type n = 5;
>+        std_v.insert(std_v.begin() + pos, n, 9999);
>+        IntVec::iterator it = v.insert(v.cbegin() + pos, n, 9999);
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+      {
>+        // Iterator range (random access iterator)
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        const std::vector<int> input = {9999, 8888, 7777};
>+        std_v.insert(std_v.begin() + pos, input.cbegin(), input.cend());
>+        IntVec::iterator it =
>+            v.insert(v.cbegin() + pos, input.cbegin(), input.cend());
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+      {
>+        // Iterator range (forward iterator)
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        const std::forward_list<int> input = {9999, 8888, 7777};
>+        std_v.insert(std_v.begin() + pos, input.cbegin(), input.cend());
>+        IntVec::iterator it =
>+            v.insert(v.cbegin() + pos, input.cbegin(), input.cend());
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+      {
>+        // Iterator range (input iterator)
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        std_v.insert(std_v.begin() + pos, {9999, 8888, 7777});
>+        std::istringstream input("9999 8888 7777");
>+        IntVec::iterator it =
>+            v.insert(v.cbegin() + pos, std::istream_iterator<int>(input),
>+                     std::istream_iterator<int>());
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+      {
>+        // Initializer list
>+        std::vector<int> std_v;
>+        Fill(&std_v, len);
>+        IntVec v;
>+        Fill(&v, len);
>+
>+        std_v.insert(std_v.begin() + pos, {9999, 8888});
>+        IntVec::iterator it = v.insert(v.cbegin() + pos, {9999, 8888});
>+        EXPECT_THAT(v, ElementsAreArray(std_v));
>+        EXPECT_EQ(it, v.cbegin() + pos);
>+      }
>+    }
>+  }
>+}
>+
>+TEST(RefCountedVec, InsertConstructorDestructor) {
>+  // Make sure the proper construction/destruction happen during insert
>+  // operations.
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    for (int pos = 0; pos <= len; pos++) {
>+      SCOPED_TRACE(pos);
>+      std::vector<int> counts(len, 0);
>+      int inserted_count = 0;
>+      RefCountedVec v;
>+      for (int i = 0; i < len; ++i) {
>+        SCOPED_TRACE(i);
>+        v.push_back(RefCounted(i, &counts[i]));
>+      }
>+
>+      EXPECT_THAT(counts, Each(Eq(1)));
>+
>+      RefCounted insert_element(9999, &inserted_count);
>+      EXPECT_EQ(1, inserted_count);
>+      v.insert(v.begin() + pos, insert_element);
>+      EXPECT_EQ(2, inserted_count);
>+      // Check that the elements at the end are preserved.
>+      EXPECT_THAT(counts, Each(Eq(1)));
>+      EXPECT_EQ(2, inserted_count);
>+    }
>+  }
>+}
>+
>+TEST(IntVec, Resize) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v;
>+    Fill(&v, len);
>+
>+    // Try resizing up and down by k elements
>+    static const int kResizeElem = 1000000;
>+    for (int k = 0; k < 10; k++) {
>+      // Enlarging resize
>+      v.resize(len+k, kResizeElem);
>+      EXPECT_EQ(len+k, v.size());
>+      EXPECT_LE(len+k, v.capacity());
>+      for (int i = 0; i < len+k; i++) {
>+        if (i < len) {
>+          EXPECT_EQ(i, v[i]);
>+        } else {
>+          EXPECT_EQ(kResizeElem, v[i]);
>+        }
>+      }
>+
>+      // Shrinking resize
>+      v.resize(len, kResizeElem);
>+      EXPECT_EQ(len, v.size());
>+      EXPECT_LE(len, v.capacity());
>+      for (int i = 0; i < len; i++) {
>+        EXPECT_EQ(i, v[i]);
>+      }
>+    }
>+  }
>+}
>+
>+TEST(IntVec, InitWithLength) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v(len, 7);
>+    EXPECT_EQ(len, v.size());
>+    EXPECT_LE(len, v.capacity());
>+    for (int i = 0; i < len; i++) {
>+      EXPECT_EQ(7, v[i]);
>+    }
>+  }
>+}
>+
>+TEST(IntVec, CopyConstructorAndAssignment) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v;
>+    Fill(&v, len);
>+    EXPECT_EQ(len, v.size());
>+    EXPECT_LE(len, v.capacity());
>+
>+    IntVec v2(v);
>+    EXPECT_TRUE(v == v2) << PrintToString(v) << PrintToString(v2);
>+
>+    for (int start_len = 0; start_len < 20; start_len++) {
>+      IntVec v3;
>+      Fill(&v3, start_len, 99);  // Add dummy elements that should go away
>+      v3 = v;
>+      EXPECT_TRUE(v == v3) << PrintToString(v) << PrintToString(v3);
>+    }
>+  }
>+}
>+
>+TEST(IntVec, AliasingCopyAssignment) {
>+  for (int len = 0; len < 20; ++len) {
>+    IntVec original;
>+    Fill(&original, len);
>+    IntVec dup = original;
>+    dup = *&dup;
>+    EXPECT_EQ(dup, original);
>+  }
>+}
>+
>+TEST(IntVec, MoveConstructorAndAssignment) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v_in;
>+    const int inlined_capacity = v_in.capacity();
>+    Fill(&v_in, len);
>+    EXPECT_EQ(len, v_in.size());
>+    EXPECT_LE(len, v_in.capacity());
>+
>+    {
>+      IntVec v_temp(v_in);
>+      auto* old_data = v_temp.data();
>+      IntVec v_out(std::move(v_temp));
>+      EXPECT_TRUE(v_in == v_out) << PrintToString(v_in) << PrintToString(v_out);
>+      if (v_in.size() > inlined_capacity) {
>+        // Allocation is moved as a whole, data stays in place.
>+        EXPECT_TRUE(v_out.data() == old_data);
>+      } else {
>+        EXPECT_FALSE(v_out.data() == old_data);
>+      }
>+    }
>+    for (int start_len = 0; start_len < 20; start_len++) {
>+      IntVec v_out;
>+      Fill(&v_out, start_len, 99);  // Add dummy elements that should go away
>+      IntVec v_temp(v_in);
>+      auto* old_data = v_temp.data();
>+      v_out = std::move(v_temp);
>+      EXPECT_TRUE(v_in == v_out) << PrintToString(v_in) << PrintToString(v_out);
>+      if (v_in.size() > inlined_capacity) {
>+        // Allocation is moved as a whole, data stays in place.
>+        EXPECT_TRUE(v_out.data() == old_data);
>+      } else {
>+        EXPECT_FALSE(v_out.data() == old_data);
>+      }
>+    }
>+  }
>+}
>+
>+class NotTriviallyDestructible {
>+ public:
>+  NotTriviallyDestructible() : p_(new int(1)) {}
>+  explicit NotTriviallyDestructible(int i) : p_(new int(i)) {}
>+
>+  NotTriviallyDestructible(const NotTriviallyDestructible& other)
>+      : p_(new int(*other.p_)) {}
>+
>+  NotTriviallyDestructible& operator=(const NotTriviallyDestructible& other) {
>+    p_ = absl::make_unique<int>(*other.p_);
>+    return *this;
>+  }
>+
>+  bool operator==(const NotTriviallyDestructible& other) const {
>+    return *p_ == *other.p_;
>+  }
>+
>+ private:
>+  std::unique_ptr<int> p_;
>+};
>+
>+TEST(AliasingTest, Emplace) {
>+  for (int i = 2; i < 20; ++i) {
>+    absl::InlinedVector<NotTriviallyDestructible, 10> vec;
>+    for (int j = 0; j < i; ++j) {
>+      vec.push_back(NotTriviallyDestructible(j));
>+    }
>+    vec.emplace(vec.begin(), vec[0]);
>+    EXPECT_EQ(vec[0], vec[1]);
>+    vec.emplace(vec.begin() + i / 2, vec[i / 2]);
>+    EXPECT_EQ(vec[i / 2], vec[i / 2 + 1]);
>+    vec.emplace(vec.end() - 1, vec.back());
>+    EXPECT_EQ(vec[vec.size() - 2], vec.back());
>+  }
>+}
>+
>+TEST(AliasingTest, InsertWithCount) {
>+  for (int i = 1; i < 20; ++i) {
>+    absl::InlinedVector<NotTriviallyDestructible, 10> vec;
>+    for (int j = 0; j < i; ++j) {
>+      vec.push_back(NotTriviallyDestructible(j));
>+    }
>+    for (int n = 0; n < 5; ++n) {
>+      // We use back where we can because it's guaranteed to become invalidated
>+      vec.insert(vec.begin(), n, vec.back());
>+      auto b = vec.begin();
>+      EXPECT_TRUE(
>+          std::all_of(b, b + n, [&vec](const NotTriviallyDestructible& x) {
>+            return x == vec.back();
>+          }));
>+
>+      auto m_idx = vec.size() / 2;
>+      vec.insert(vec.begin() + m_idx, n, vec.back());
>+      auto m = vec.begin() + m_idx;
>+      EXPECT_TRUE(
>+          std::all_of(m, m + n, [&vec](const NotTriviallyDestructible& x) {
>+            return x == vec.back();
>+          }));
>+
>+      // We want distinct values so the equality test is meaningful,
>+      // vec[vec.size() - 1] is also almost always invalidated.
>+      auto old_e = vec.size() - 1;
>+      auto val = vec[old_e];
>+      vec.insert(vec.end(), n, vec[old_e]);
>+      auto e = vec.begin() + old_e;
>+      EXPECT_TRUE(std::all_of(
>+          e, e + n,
>+          [&val](const NotTriviallyDestructible& x) { return x == val; }));
>+    }
>+  }
>+}
>+
>+TEST(OverheadTest, Storage) {
>+  // Check for size overhead.
>+  // In particular, ensure that std::allocator doesn't cost anything to store.
>+  // The union should be absorbing some of the allocation bookkeeping overhead
>+  // in the larger vectors, leaving only the size_ field as overhead.
>+  EXPECT_EQ(2 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 1>) - 1 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 2>) - 2 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 3>) - 3 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 4>) - 4 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 5>) - 5 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 6>) - 6 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 7>) - 7 * sizeof(int*));
>+  EXPECT_EQ(1 * sizeof(int*),
>+            sizeof(absl::InlinedVector<int*, 8>) - 8 * sizeof(int*));
>+}
>+
>+TEST(IntVec, Clear) {
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    IntVec v;
>+    Fill(&v, len);
>+    v.clear();
>+    EXPECT_EQ(0, v.size());
>+    EXPECT_EQ(v.begin(), v.end());
>+  }
>+}
>+
>+TEST(IntVec, Reserve) {
>+  for (int len = 0; len < 20; len++) {
>+    IntVec v;
>+    Fill(&v, len);
>+
>+    for (int newlen = 0; newlen < 100; newlen++) {
>+      const int* start_rep = v.data();
>+      v.reserve(newlen);
>+      const int* final_rep = v.data();
>+      if (newlen <= len) {
>+        EXPECT_EQ(start_rep, final_rep);
>+      }
>+      EXPECT_LE(newlen, v.capacity());
>+
>+      // Filling up to newlen should not change rep
>+      while (v.size() < newlen) {
>+        v.push_back(0);
>+      }
>+      EXPECT_EQ(final_rep, v.data());
>+    }
>+  }
>+}
>+
>+TEST(StringVec, SelfRefPushBack) {
>+  std::vector<std::string> std_v;
>+  absl::InlinedVector<std::string, 4> v;
>+  const std::string s = "A quite long std::string to ensure heap.";
>+  std_v.push_back(s);
>+  v.push_back(s);
>+  for (int i = 0; i < 20; ++i) {
>+    EXPECT_THAT(v, ElementsAreArray(std_v));
>+
>+    v.push_back(v.back());
>+    std_v.push_back(std_v.back());
>+  }
>+  EXPECT_THAT(v, ElementsAreArray(std_v));
>+}
>+
>+TEST(StringVec, SelfRefPushBackWithMove) {
>+  std::vector<std::string> std_v;
>+  absl::InlinedVector<std::string, 4> v;
>+  const std::string s = "A quite long std::string to ensure heap.";
>+  std_v.push_back(s);
>+  v.push_back(s);
>+  for (int i = 0; i < 20; ++i) {
>+    EXPECT_EQ(v.back(), std_v.back());
>+
>+    v.push_back(std::move(v.back()));
>+    std_v.push_back(std::move(std_v.back()));
>+  }
>+  EXPECT_EQ(v.back(), std_v.back());
>+}
>+
>+TEST(StringVec, SelfMove) {
>+  const std::string s = "A quite long std::string to ensure heap.";
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    absl::InlinedVector<std::string, 8> v;
>+    for (int i = 0; i < len; ++i) {
>+      SCOPED_TRACE(i);
>+      v.push_back(s);
>+    }
>+    // Indirection necessary to avoid compiler warning.
>+    v = std::move(*(&v));
>+    // Ensure that the inlined vector is still in a valid state by copying it.
>+    // We don't expect specific contents since a self-move results in an
>+    // unspecified valid state.
>+    std::vector<std::string> copy(v.begin(), v.end());
>+  }
>+}
>+
>+TEST(IntVec, Swap) {
>+  for (int l1 = 0; l1 < 20; l1++) {
>+    SCOPED_TRACE(l1);
>+    for (int l2 = 0; l2 < 20; l2++) {
>+      SCOPED_TRACE(l2);
>+      IntVec a = Fill(l1, 0);
>+      IntVec b = Fill(l2, 100);
>+      {
>+        using std::swap;
>+        swap(a, b);
>+      }
>+      EXPECT_EQ(l1, b.size());
>+      EXPECT_EQ(l2, a.size());
>+      for (int i = 0; i < l1; i++) {
>+        SCOPED_TRACE(i);
>+        EXPECT_EQ(i, b[i]);
>+      }
>+      for (int i = 0; i < l2; i++) {
>+        SCOPED_TRACE(i);
>+        EXPECT_EQ(100 + i, a[i]);
>+      }
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, Swap) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  for (int l1 = 0; l1 < 20; l1++) {
>+    SCOPED_TRACE(l1);
>+    for (int l2 = 0; l2 < 20; l2++) {
>+      SCOPED_TRACE(l2);
>+      InstanceTracker tracker;
>+      InstanceVec a, b;
>+      const size_t inlined_capacity = a.capacity();
>+      for (int i = 0; i < l1; i++) a.push_back(Instance(i));
>+      for (int i = 0; i < l2; i++) b.push_back(Instance(100+i));
>+      EXPECT_EQ(tracker.instances(), l1 + l2);
>+      tracker.ResetCopiesMovesSwaps();
>+      {
>+        using std::swap;
>+        swap(a, b);
>+      }
>+      EXPECT_EQ(tracker.instances(), l1 + l2);
>+      if (a.size() > inlined_capacity && b.size() > inlined_capacity) {
>+        EXPECT_EQ(tracker.swaps(), 0);  // Allocations are swapped.
>+        EXPECT_EQ(tracker.moves(), 0);
>+      } else if (a.size() <= inlined_capacity && b.size() <= inlined_capacity) {
>+        EXPECT_EQ(tracker.swaps(), std::min(l1, l2));
>+        // TODO(bsamwel): This should use moves when the type is movable.
>+        EXPECT_EQ(tracker.copies(), std::max(l1, l2) - std::min(l1, l2));
>+      } else {
>+        // One is allocated and the other isn't. The allocation is transferred
>+        // without copying elements, and the inlined instances are copied/moved.
>+        EXPECT_EQ(tracker.swaps(), 0);
>+        // TODO(bsamwel): This should use moves when the type is movable.
>+        EXPECT_EQ(tracker.copies(), std::min(l1, l2));
>+      }
>+
>+      EXPECT_EQ(l1, b.size());
>+      EXPECT_EQ(l2, a.size());
>+      for (int i = 0; i < l1; i++) {
>+        EXPECT_EQ(i, b[i].value());
>+      }
>+      for (int i = 0; i < l2; i++) {
>+        EXPECT_EQ(100 + i, a[i].value());
>+      }
>+    }
>+  }
>+}
>+
>+TEST(IntVec, EqualAndNotEqual) {
>+  IntVec a, b;
>+  EXPECT_TRUE(a == b);
>+  EXPECT_FALSE(a != b);
>+
>+  a.push_back(3);
>+  EXPECT_FALSE(a == b);
>+  EXPECT_TRUE(a != b);
>+
>+  b.push_back(3);
>+  EXPECT_TRUE(a == b);
>+  EXPECT_FALSE(a != b);
>+
>+  b.push_back(7);
>+  EXPECT_FALSE(a == b);
>+  EXPECT_TRUE(a != b);
>+
>+  a.push_back(6);
>+  EXPECT_FALSE(a == b);
>+  EXPECT_TRUE(a != b);
>+
>+  a.clear();
>+  b.clear();
>+  for (int i = 0; i < 100; i++) {
>+    a.push_back(i);
>+    b.push_back(i);
>+    EXPECT_TRUE(a == b);
>+    EXPECT_FALSE(a != b);
>+
>+    b[i] = b[i] + 1;
>+    EXPECT_FALSE(a == b);
>+    EXPECT_TRUE(a != b);
>+
>+    b[i] = b[i] - 1;    // Back to before
>+    EXPECT_TRUE(a == b);
>+    EXPECT_FALSE(a != b);
>+  }
>+}
>+
>+TEST(IntVec, RelationalOps) {
>+  IntVec a, b;
>+  EXPECT_FALSE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_FALSE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_TRUE(b <= a);
>+  EXPECT_TRUE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+  b.push_back(3);
>+  EXPECT_TRUE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_TRUE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_FALSE(b <= a);
>+  EXPECT_FALSE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountConstructorsDestructors) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  InstanceTracker tracker;
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    tracker.ResetCopiesMovesSwaps();
>+
>+    InstanceVec v;
>+    const size_t inlined_capacity = v.capacity();
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(Instance(i));
>+    }
>+    EXPECT_EQ(tracker.instances(), len);
>+    EXPECT_GE(tracker.copies() + tracker.moves(),
>+              len);  // More due to reallocation.
>+    tracker.ResetCopiesMovesSwaps();
>+
>+    // Enlarging resize() must construct some objects
>+    tracker.ResetCopiesMovesSwaps();
>+    v.resize(len + 10, Instance(100));
>+    EXPECT_EQ(tracker.instances(), len + 10);
>+    if (len <= inlined_capacity && len + 10 > inlined_capacity) {
>+      EXPECT_EQ(tracker.copies() + tracker.moves(), 10 + len);
>+    } else {
>+      // Only specify a minimum number of copies + moves. We don't want to
>+      // depend on the reallocation policy here.
>+      EXPECT_GE(tracker.copies() + tracker.moves(),
>+                10);  // More due to reallocation.
>+    }
>+
>+    // Shrinking resize() must destroy some objects
>+    tracker.ResetCopiesMovesSwaps();
>+    v.resize(len, Instance(100));
>+    EXPECT_EQ(tracker.instances(), len);
>+    EXPECT_EQ(tracker.copies(), 0);
>+    EXPECT_EQ(tracker.moves(), 0);
>+
>+    // reserve() must not increase the number of initialized objects
>+    SCOPED_TRACE("reserve");
>+    v.reserve(len+1000);
>+    EXPECT_EQ(tracker.instances(), len);
>+    EXPECT_EQ(tracker.copies() + tracker.moves(), len);
>+
>+    // pop_back() and erase() must destroy one object
>+    if (len > 0) {
>+      tracker.ResetCopiesMovesSwaps();
>+      v.pop_back();
>+      EXPECT_EQ(tracker.instances(), len - 1);
>+      EXPECT_EQ(tracker.copies(), 0);
>+      EXPECT_EQ(tracker.moves(), 0);
>+
>+      if (!v.empty()) {
>+        tracker.ResetCopiesMovesSwaps();
>+        v.erase(v.begin());
>+        EXPECT_EQ(tracker.instances(), len - 2);
>+        EXPECT_EQ(tracker.copies() + tracker.moves(), len - 2);
>+      }
>+    }
>+
>+    tracker.ResetCopiesMovesSwaps();
>+    int instances_before_empty_erase = tracker.instances();
>+    v.erase(v.begin(), v.begin());
>+    EXPECT_EQ(tracker.instances(), instances_before_empty_erase);
>+    EXPECT_EQ(tracker.copies() + tracker.moves(), 0);
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnCopyConstruction) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  InstanceTracker tracker;
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    tracker.ResetCopiesMovesSwaps();
>+
>+    InstanceVec v;
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(Instance(i));
>+    }
>+    EXPECT_EQ(tracker.instances(), len);
>+    EXPECT_GE(tracker.copies() + tracker.moves(),
>+              len);  // More due to reallocation.
>+    tracker.ResetCopiesMovesSwaps();
>+    {  // Copy constructor should create 'len' more instances.
>+      InstanceVec v_copy(v);
>+      EXPECT_EQ(tracker.instances(), len + len);
>+      EXPECT_EQ(tracker.copies(), len);
>+      EXPECT_EQ(tracker.moves(), 0);
>+    }
>+    EXPECT_EQ(tracker.instances(), len);
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnMoveConstruction) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  InstanceTracker tracker;
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    tracker.ResetCopiesMovesSwaps();
>+
>+    InstanceVec v;
>+    const size_t inlined_capacity = v.capacity();
>+    for (int i = 0; i < len; i++) {
>+      v.push_back(Instance(i));
>+    }
>+    EXPECT_EQ(tracker.instances(), len);
>+    EXPECT_GE(tracker.copies() + tracker.moves(),
>+              len);  // More due to reallocation.
>+    tracker.ResetCopiesMovesSwaps();
>+    {
>+      InstanceVec v_copy(std::move(v));
>+      if (len > inlined_capacity) {
>+        // Allocation is moved as a whole.
>+        EXPECT_EQ(tracker.instances(), len);
>+        EXPECT_EQ(tracker.live_instances(), len);
>+        // Tests an implementation detail, don't rely on this in your code.
>+        EXPECT_EQ(v.size(), 0);  // NOLINT misc-use-after-move
>+        EXPECT_EQ(tracker.copies(), 0);
>+        EXPECT_EQ(tracker.moves(), 0);
>+      } else {
>+        EXPECT_EQ(tracker.instances(), len + len);
>+        if (Instance::supports_move()) {
>+          EXPECT_EQ(tracker.live_instances(), len);
>+          EXPECT_EQ(tracker.copies(), 0);
>+          EXPECT_EQ(tracker.moves(), len);
>+        } else {
>+          EXPECT_EQ(tracker.live_instances(), len + len);
>+          EXPECT_EQ(tracker.copies(), len);
>+          EXPECT_EQ(tracker.moves(), 0);
>+        }
>+      }
>+      EXPECT_EQ(tracker.swaps(), 0);
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnAssignment) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  InstanceTracker tracker;
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    for (int longorshort = 0; longorshort <= 1; ++longorshort) {
>+      SCOPED_TRACE(longorshort);
>+      tracker.ResetCopiesMovesSwaps();
>+
>+      InstanceVec longer, shorter;
>+      for (int i = 0; i < len; i++) {
>+        longer.push_back(Instance(i));
>+        shorter.push_back(Instance(i));
>+      }
>+      longer.push_back(Instance(len));
>+      EXPECT_EQ(tracker.instances(), len + len + 1);
>+      EXPECT_GE(tracker.copies() + tracker.moves(),
>+                len + len + 1);  // More due to reallocation.
>+
>+      tracker.ResetCopiesMovesSwaps();
>+      if (longorshort) {
>+        shorter = longer;
>+        EXPECT_EQ(tracker.instances(), (len + 1) + (len + 1));
>+        EXPECT_GE(tracker.copies() + tracker.moves(),
>+                  len + 1);  // More due to reallocation.
>+      } else {
>+        longer = shorter;
>+        EXPECT_EQ(tracker.instances(), len + len);
>+        EXPECT_EQ(tracker.copies() + tracker.moves(), len);
>+      }
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountConstructorsDestructorsOnMoveAssignment) {
>+  using Instance = TypeParam;
>+  using InstanceVec = absl::InlinedVector<Instance, 8>;
>+  InstanceTracker tracker;
>+  for (int len = 0; len < 20; len++) {
>+    SCOPED_TRACE(len);
>+    for (int longorshort = 0; longorshort <= 1; ++longorshort) {
>+      SCOPED_TRACE(longorshort);
>+      tracker.ResetCopiesMovesSwaps();
>+
>+      InstanceVec longer, shorter;
>+      const int inlined_capacity = longer.capacity();
>+      for (int i = 0; i < len; i++) {
>+        longer.push_back(Instance(i));
>+        shorter.push_back(Instance(i));
>+      }
>+      longer.push_back(Instance(len));
>+      EXPECT_EQ(tracker.instances(), len + len + 1);
>+      EXPECT_GE(tracker.copies() + tracker.moves(),
>+                len + len + 1);  // More due to reallocation.
>+
>+      tracker.ResetCopiesMovesSwaps();
>+      int src_len;
>+      if (longorshort) {
>+        src_len = len + 1;
>+        shorter = std::move(longer);
>+      } else {
>+        src_len = len;
>+        longer = std::move(shorter);
>+      }
>+      if (src_len > inlined_capacity) {
>+        // Allocation moved as a whole.
>+        EXPECT_EQ(tracker.instances(), src_len);
>+        EXPECT_EQ(tracker.live_instances(), src_len);
>+        EXPECT_EQ(tracker.copies(), 0);
>+        EXPECT_EQ(tracker.moves(), 0);
>+      } else {
>+        // Elements are all copied.
>+        EXPECT_EQ(tracker.instances(), src_len + src_len);
>+        if (Instance::supports_move()) {
>+          EXPECT_EQ(tracker.copies(), 0);
>+          EXPECT_EQ(tracker.moves(), src_len);
>+          EXPECT_EQ(tracker.live_instances(), src_len);
>+        } else {
>+          EXPECT_EQ(tracker.copies(), src_len);
>+          EXPECT_EQ(tracker.moves(), 0);
>+          EXPECT_EQ(tracker.live_instances(), src_len + src_len);
>+        }
>+      }
>+      EXPECT_EQ(tracker.swaps(), 0);
>+    }
>+  }
>+}
>+
>+TEST(CountElemAssign, SimpleTypeWithInlineBacking) {
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<int> original_contents(original_size, 12345);
>+
>+    absl::InlinedVector<int, 2> v(original_contents.begin(),
>+                                  original_contents.end());
>+    v.assign(2, 123);
>+    EXPECT_THAT(v, AllOf(SizeIs(2), ElementsAre(123, 123)));
>+    if (original_size <= 2) {
>+      // If the original had inline backing, it should stay inline.
>+      EXPECT_EQ(2, v.capacity());
>+    }
>+  }
>+}
>+
>+TEST(CountElemAssign, SimpleTypeWithAllocation) {
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<int> original_contents(original_size, 12345);
>+
>+    absl::InlinedVector<int, 2> v(original_contents.begin(),
>+                                  original_contents.end());
>+    v.assign(3, 123);
>+    EXPECT_THAT(v, AllOf(SizeIs(3), ElementsAre(123, 123, 123)));
>+    EXPECT_LE(v.size(), v.capacity());
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, CountElemAssignInlineBacking) {
>+  using Instance = TypeParam;
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<Instance> original_contents(original_size, Instance(12345));
>+
>+    absl::InlinedVector<Instance, 2> v(original_contents.begin(),
>+                                       original_contents.end());
>+    v.assign(2, Instance(123));
>+    EXPECT_THAT(v, AllOf(SizeIs(2), ElementsAre(ValueIs(123), ValueIs(123))));
>+    if (original_size <= 2) {
>+      // If the original had inline backing, it should stay inline.
>+      EXPECT_EQ(2, v.capacity());
>+    }
>+  }
>+}
>+
>+template <typename Instance>
>+void InstanceCountElemAssignWithAllocationTest() {
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<Instance> original_contents(original_size, Instance(12345));
>+
>+    absl::InlinedVector<Instance, 2> v(original_contents.begin(),
>+                                       original_contents.end());
>+    v.assign(3, Instance(123));
>+    EXPECT_THAT(v,
>+                AllOf(SizeIs(3),
>+                      ElementsAre(ValueIs(123), ValueIs(123), ValueIs(123))));
>+    EXPECT_LE(v.size(), v.capacity());
>+  }
>+}
>+TEST(CountElemAssign, WithAllocationCopyableInstance) {
>+  InstanceCountElemAssignWithAllocationTest<CopyableOnlyInstance>();
>+}
>+TEST(CountElemAssign, WithAllocationCopyableMovableInstance) {
>+  InstanceCountElemAssignWithAllocationTest<CopyableMovableInstance>();
>+}
>+
>+TEST(RangedConstructor, SimpleType) {
>+  std::vector<int> source_v = {4, 5, 6};
>+  // First try to fit in inline backing
>+  absl::InlinedVector<int, 4> v(source_v.begin(), source_v.end());
>+  EXPECT_EQ(3, v.size());
>+  EXPECT_EQ(4, v.capacity());  // Indication that we're still on inlined storage
>+  EXPECT_EQ(4, v[0]);
>+  EXPECT_EQ(5, v[1]);
>+  EXPECT_EQ(6, v[2]);
>+
>+  // Now, force a re-allocate
>+  absl::InlinedVector<int, 2> realloc_v(source_v.begin(), source_v.end());
>+  EXPECT_EQ(3, realloc_v.size());
>+  EXPECT_LT(2, realloc_v.capacity());
>+  EXPECT_EQ(4, realloc_v[0]);
>+  EXPECT_EQ(5, realloc_v[1]);
>+  EXPECT_EQ(6, realloc_v[2]);
>+}
>+
>+// Test for ranged constructors using Instance as the element type and
>+// SourceContainer as the source container type.
>+template <typename Instance, typename SourceContainer, int inlined_capacity>
>+void InstanceRangedConstructorTestForContainer() {
>+  InstanceTracker tracker;
>+  SourceContainer source_v = {Instance(0), Instance(1)};
>+  tracker.ResetCopiesMovesSwaps();
>+  absl::InlinedVector<Instance, inlined_capacity> v(source_v.begin(),
>+                                                    source_v.end());
>+  EXPECT_EQ(2, v.size());
>+  EXPECT_LT(1, v.capacity());
>+  EXPECT_EQ(0, v[0].value());
>+  EXPECT_EQ(1, v[1].value());
>+  EXPECT_EQ(tracker.copies(), 2);
>+  EXPECT_EQ(tracker.moves(), 0);
>+}
>+
>+template <typename Instance, int inlined_capacity>
>+void InstanceRangedConstructorTestWithCapacity() {
>+  // Test with const and non-const, random access and non-random-access sources.
>+  // TODO(bsamwel): Test with an input iterator source.
>+  {
>+    SCOPED_TRACE("std::list");
>+    InstanceRangedConstructorTestForContainer<Instance, std::list<Instance>,
>+                                              inlined_capacity>();
>+    {
>+      SCOPED_TRACE("const std::list");
>+      InstanceRangedConstructorTestForContainer<
>+          Instance, const std::list<Instance>, inlined_capacity>();
>+    }
>+    {
>+      SCOPED_TRACE("std::vector");
>+      InstanceRangedConstructorTestForContainer<Instance, std::vector<Instance>,
>+                                                inlined_capacity>();
>+    }
>+    {
>+      SCOPED_TRACE("const std::vector");
>+      InstanceRangedConstructorTestForContainer<
>+          Instance, const std::vector<Instance>, inlined_capacity>();
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, RangedConstructor) {
>+  using Instance = TypeParam;
>+  SCOPED_TRACE("capacity=1");
>+  InstanceRangedConstructorTestWithCapacity<Instance, 1>();
>+  SCOPED_TRACE("capacity=2");
>+  InstanceRangedConstructorTestWithCapacity<Instance, 2>();
>+}
>+
>+TEST(RangedConstructor, ElementsAreConstructed) {
>+  std::vector<std::string> source_v = {"cat", "dog"};
>+
>+  // Force expansion and re-allocation of v.  Ensures that when the vector is
>+  // expanded that new elements are constructed.
>+  absl::InlinedVector<std::string, 1> v(source_v.begin(), source_v.end());
>+  EXPECT_EQ("cat", v[0]);
>+  EXPECT_EQ("dog", v[1]);
>+}
>+
>+TEST(RangedAssign, SimpleType) {
>+  // Test for all combinations of original sizes (empty and non-empty inline,
>+  // and out of line) and target sizes.
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<int> original_contents(original_size, 12345);
>+
>+    for (size_t target_size = 0; target_size <= 5; ++target_size) {
>+      SCOPED_TRACE(target_size);
>+
>+      // New contents are [3, 4, ...]
>+      std::vector<int> new_contents;
>+      for (size_t i = 0; i < target_size; ++i) {
>+        new_contents.push_back(i + 3);
>+      }
>+
>+      absl::InlinedVector<int, 3> v(original_contents.begin(),
>+                                    original_contents.end());
>+      v.assign(new_contents.begin(), new_contents.end());
>+
>+      EXPECT_EQ(new_contents.size(), v.size());
>+      EXPECT_LE(new_contents.size(), v.capacity());
>+      if (target_size <= 3 && original_size <= 3) {
>+        // Storage should stay inline when target size is small.
>+        EXPECT_EQ(3, v.capacity());
>+      }
>+      EXPECT_THAT(v, ElementsAreArray(new_contents));
>+    }
>+  }
>+}
>+
>+// Returns true if lhs and rhs have the same value.
>+template <typename Instance>
>+static bool InstanceValuesEqual(const Instance& lhs, const Instance& rhs) {
>+  return lhs.value() == rhs.value();
>+}
>+
>+// Test for ranged assign() using Instance as the element type and
>+// SourceContainer as the source container type.
>+template <typename Instance, typename SourceContainer>
>+void InstanceRangedAssignTestForContainer() {
>+  // Test for all combinations of original sizes (empty and non-empty inline,
>+  // and out of line) and target sizes.
>+  for (size_t original_size = 0; original_size <= 5; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    // Original contents are [12345, 12345, ...]
>+    std::vector<Instance> original_contents(original_size, Instance(12345));
>+
>+    for (size_t target_size = 0; target_size <= 5; ++target_size) {
>+      SCOPED_TRACE(target_size);
>+
>+      // New contents are [3, 4, ...]
>+      // Generate data using a non-const container, because SourceContainer
>+      // itself may be const.
>+      // TODO(bsamwel): Test with an input iterator.
>+      std::vector<Instance> new_contents_in;
>+      for (size_t i = 0; i < target_size; ++i) {
>+        new_contents_in.push_back(Instance(i + 3));
>+      }
>+      SourceContainer new_contents(new_contents_in.begin(),
>+                                   new_contents_in.end());
>+
>+      absl::InlinedVector<Instance, 3> v(original_contents.begin(),
>+                                         original_contents.end());
>+      v.assign(new_contents.begin(), new_contents.end());
>+
>+      EXPECT_EQ(new_contents.size(), v.size());
>+      EXPECT_LE(new_contents.size(), v.capacity());
>+      if (target_size <= 3 && original_size <= 3) {
>+        // Storage should stay inline when target size is small.
>+        EXPECT_EQ(3, v.capacity());
>+      }
>+      EXPECT_TRUE(std::equal(v.begin(), v.end(), new_contents.begin(),
>+                             InstanceValuesEqual<Instance>));
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(InstanceTest, RangedAssign) {
>+  using Instance = TypeParam;
>+  // Test with const and non-const, random access and non-random-access sources.
>+  // TODO(bsamwel): Test with an input iterator source.
>+  SCOPED_TRACE("std::list");
>+  InstanceRangedAssignTestForContainer<Instance, std::list<Instance>>();
>+  SCOPED_TRACE("const std::list");
>+  InstanceRangedAssignTestForContainer<Instance, const std::list<Instance>>();
>+  SCOPED_TRACE("std::vector");
>+  InstanceRangedAssignTestForContainer<Instance, std::vector<Instance>>();
>+  SCOPED_TRACE("const std::vector");
>+  InstanceRangedAssignTestForContainer<Instance, const std::vector<Instance>>();
>+}
>+
>+TEST(InitializerListConstructor, SimpleTypeWithInlineBacking) {
>+  EXPECT_THAT((absl::InlinedVector<int, 4>{4, 5, 6}),
>+              AllOf(SizeIs(3), CapacityIs(4), ElementsAre(4, 5, 6)));
>+}
>+
>+TEST(InitializerListConstructor, SimpleTypeWithReallocationRequired) {
>+  EXPECT_THAT((absl::InlinedVector<int, 2>{4, 5, 6}),
>+              AllOf(SizeIs(3), CapacityIs(Gt(2)), ElementsAre(4, 5, 6)));
>+}
>+
>+TEST(InitializerListConstructor, DisparateTypesInList) {
>+  EXPECT_THAT((absl::InlinedVector<int, 2>{-7, 8ULL}), ElementsAre(-7, 8));
>+
>+  EXPECT_THAT((absl::InlinedVector<std::string, 2>{"foo", std::string("bar")}),
>+              ElementsAre("foo", "bar"));
>+}
>+
>+TEST(InitializerListConstructor, ComplexTypeWithInlineBacking) {
>+  EXPECT_THAT((absl::InlinedVector<CopyableMovableInstance, 1>{
>+                  CopyableMovableInstance(0)}),
>+              AllOf(SizeIs(1), CapacityIs(1), ElementsAre(ValueIs(0))));
>+}
>+
>+TEST(InitializerListConstructor, ComplexTypeWithReallocationRequired) {
>+  EXPECT_THAT(
>+      (absl::InlinedVector<CopyableMovableInstance, 1>{
>+          CopyableMovableInstance(0), CopyableMovableInstance(1)}),
>+      AllOf(SizeIs(2), CapacityIs(Gt(1)), ElementsAre(ValueIs(0), ValueIs(1))));
>+}
>+
>+TEST(InitializerListAssign, SimpleTypeFitsInlineBacking) {
>+  for (size_t original_size = 0; original_size <= 4; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+
>+    absl::InlinedVector<int, 2> v1(original_size, 12345);
>+    const size_t original_capacity_v1 = v1.capacity();
>+    v1.assign({3});
>+    EXPECT_THAT(
>+        v1, AllOf(SizeIs(1), CapacityIs(original_capacity_v1), ElementsAre(3)));
>+
>+    absl::InlinedVector<int, 2> v2(original_size, 12345);
>+    const size_t original_capacity_v2 = v2.capacity();
>+    v2 = {3};
>+    EXPECT_THAT(
>+        v2, AllOf(SizeIs(1), CapacityIs(original_capacity_v2), ElementsAre(3)));
>+  }
>+}
>+
>+TEST(InitializerListAssign, SimpleTypeDoesNotFitInlineBacking) {
>+  for (size_t original_size = 0; original_size <= 4; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    absl::InlinedVector<int, 2> v1(original_size, 12345);
>+    v1.assign({3, 4, 5});
>+    EXPECT_THAT(v1, AllOf(SizeIs(3), ElementsAre(3, 4, 5)));
>+    EXPECT_LE(3, v1.capacity());
>+
>+    absl::InlinedVector<int, 2> v2(original_size, 12345);
>+    v2 = {3, 4, 5};
>+    EXPECT_THAT(v2, AllOf(SizeIs(3), ElementsAre(3, 4, 5)));
>+    EXPECT_LE(3, v2.capacity());
>+  }
>+}
>+
>+TEST(InitializerListAssign, DisparateTypesInList) {
>+  absl::InlinedVector<int, 2> v_int1;
>+  v_int1.assign({-7, 8ULL});
>+  EXPECT_THAT(v_int1, ElementsAre(-7, 8));
>+
>+  absl::InlinedVector<int, 2> v_int2;
>+  v_int2 = {-7, 8ULL};
>+  EXPECT_THAT(v_int2, ElementsAre(-7, 8));
>+
>+  absl::InlinedVector<std::string, 2> v_string1;
>+  v_string1.assign({"foo", std::string("bar")});
>+  EXPECT_THAT(v_string1, ElementsAre("foo", "bar"));
>+
>+  absl::InlinedVector<std::string, 2> v_string2;
>+  v_string2 = {"foo", std::string("bar")};
>+  EXPECT_THAT(v_string2, ElementsAre("foo", "bar"));
>+}
>+
>+TYPED_TEST_P(InstanceTest, InitializerListAssign) {
>+  using Instance = TypeParam;
>+  for (size_t original_size = 0; original_size <= 4; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    absl::InlinedVector<Instance, 2> v(original_size, Instance(12345));
>+    const size_t original_capacity = v.capacity();
>+    v.assign({Instance(3)});
>+    EXPECT_THAT(v, AllOf(SizeIs(1), CapacityIs(original_capacity),
>+                         ElementsAre(ValueIs(3))));
>+  }
>+  for (size_t original_size = 0; original_size <= 4; ++original_size) {
>+    SCOPED_TRACE(original_size);
>+    absl::InlinedVector<Instance, 2> v(original_size, Instance(12345));
>+    v.assign({Instance(3), Instance(4), Instance(5)});
>+    EXPECT_THAT(v, AllOf(SizeIs(3),
>+                         ElementsAre(ValueIs(3), ValueIs(4), ValueIs(5))));
>+    EXPECT_LE(3, v.capacity());
>+  }
>+}
>+
>+REGISTER_TYPED_TEST_CASE_P(InstanceTest, Swap, CountConstructorsDestructors,
>+                           CountConstructorsDestructorsOnCopyConstruction,
>+                           CountConstructorsDestructorsOnMoveConstruction,
>+                           CountConstructorsDestructorsOnAssignment,
>+                           CountConstructorsDestructorsOnMoveAssignment,
>+                           CountElemAssignInlineBacking, RangedConstructor,
>+                           RangedAssign, InitializerListAssign);
>+
>+using InstanceTypes =
>+    ::testing::Types<CopyableOnlyInstance, CopyableMovableInstance>;
>+INSTANTIATE_TYPED_TEST_CASE_P(InstanceTestOnTypes, InstanceTest, InstanceTypes);
>+
>+TEST(DynamicVec, DynamicVecCompiles) {
>+  DynamicVec v;
>+  (void)v;
>+}
>+
>+TEST(AllocatorSupportTest, Constructors) {
>+  using MyAlloc = CountingAllocator<int>;
>+  using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
>+  const int ia[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
>+  int64_t allocated = 0;
>+  MyAlloc alloc(&allocated);
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v; }
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v(alloc); }
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + ABSL_ARRAYSIZE(ia), alloc); }
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v({1, 2, 3}, alloc); }
>+
>+  AllocVec v2;
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v(v2, alloc); }
>+  { AllocVec ABSL_ATTRIBUTE_UNUSED v(std::move(v2), alloc); }
>+}
>+
>+TEST(AllocatorSupportTest, CountAllocations) {
>+  using MyAlloc = CountingAllocator<int>;
>+  using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
>+  const int ia[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
>+  int64_t allocated = 0;
>+  MyAlloc alloc(&allocated);
>+  {
>+    AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + 4, alloc);
>+    EXPECT_THAT(allocated, 0);
>+  }
>+  EXPECT_THAT(allocated, 0);
>+  {
>+    AllocVec ABSL_ATTRIBUTE_UNUSED v(ia, ia + ABSL_ARRAYSIZE(ia), alloc);
>+    EXPECT_THAT(allocated, v.size() * sizeof(int));
>+  }
>+  EXPECT_THAT(allocated, 0);
>+  {
>+    AllocVec v(4, 1, alloc);
>+    EXPECT_THAT(allocated, 0);
>+
>+    int64_t allocated2 = 0;
>+    MyAlloc alloc2(&allocated2);
>+    AllocVec v2(v, alloc2);
>+    EXPECT_THAT(allocated2, 0);
>+
>+    int64_t allocated3 = 0;
>+    MyAlloc alloc3(&allocated3);
>+    AllocVec v3(std::move(v), alloc3);
>+    EXPECT_THAT(allocated3, 0);
>+  }
>+  EXPECT_THAT(allocated, 0);
>+  {
>+    AllocVec v(8, 2, alloc);
>+    EXPECT_THAT(allocated, v.size() * sizeof(int));
>+
>+    int64_t allocated2 = 0;
>+    MyAlloc alloc2(&allocated2);
>+    AllocVec v2(v, alloc2);
>+    EXPECT_THAT(allocated2, v2.size() * sizeof(int));
>+
>+    int64_t allocated3 = 0;
>+    MyAlloc alloc3(&allocated3);
>+    AllocVec v3(std::move(v), alloc3);
>+    EXPECT_THAT(allocated3, v3.size() * sizeof(int));
>+  }
>+  EXPECT_EQ(allocated, 0);
>+  {
>+    // Test shrink_to_fit deallocations.
>+    AllocVec v(8, 2, alloc);
>+    EXPECT_EQ(allocated, 8 * sizeof(int));
>+    v.resize(5);
>+    EXPECT_EQ(allocated, 8 * sizeof(int));
>+    v.shrink_to_fit();
>+    EXPECT_EQ(allocated, 5 * sizeof(int));
>+    v.resize(4);
>+    EXPECT_EQ(allocated, 5 * sizeof(int));
>+    v.shrink_to_fit();
>+    EXPECT_EQ(allocated, 0);
>+  }
>+}
>+
>+TEST(AllocatorSupportTest, SwapBothAllocated) {
>+  using MyAlloc = CountingAllocator<int>;
>+  using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
>+  int64_t allocated1 = 0;
>+  int64_t allocated2 = 0;
>+  {
>+    const int ia1[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
>+    const int ia2[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
>+    MyAlloc a1(&allocated1);
>+    MyAlloc a2(&allocated2);
>+    AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1);
>+    AllocVec v2(ia2, ia2 + ABSL_ARRAYSIZE(ia2), a2);
>+    EXPECT_LT(v1.capacity(), v2.capacity());
>+    EXPECT_THAT(allocated1, v1.capacity() * sizeof(int));
>+    EXPECT_THAT(allocated2, v2.capacity() * sizeof(int));
>+    v1.swap(v2);
>+    EXPECT_THAT(v1, ElementsAreArray(ia2));
>+    EXPECT_THAT(v2, ElementsAreArray(ia1));
>+    EXPECT_THAT(allocated1, v2.capacity() * sizeof(int));
>+    EXPECT_THAT(allocated2, v1.capacity() * sizeof(int));
>+  }
>+  EXPECT_THAT(allocated1, 0);
>+  EXPECT_THAT(allocated2, 0);
>+}
>+
>+TEST(AllocatorSupportTest, SwapOneAllocated) {
>+  using MyAlloc = CountingAllocator<int>;
>+  using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
>+  int64_t allocated1 = 0;
>+  int64_t allocated2 = 0;
>+  {
>+    const int ia1[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
>+    const int ia2[] = { 0, 1, 2, 3 };
>+    MyAlloc a1(&allocated1);
>+    MyAlloc a2(&allocated2);
>+    AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1);
>+    AllocVec v2(ia2, ia2 + ABSL_ARRAYSIZE(ia2), a2);
>+    EXPECT_THAT(allocated1, v1.capacity() * sizeof(int));
>+    EXPECT_THAT(allocated2, 0);
>+    v1.swap(v2);
>+    EXPECT_THAT(v1, ElementsAreArray(ia2));
>+    EXPECT_THAT(v2, ElementsAreArray(ia1));
>+    EXPECT_THAT(allocated1, v2.capacity() * sizeof(int));
>+    EXPECT_THAT(allocated2, 0);
>+    EXPECT_TRUE(v2.get_allocator() == a1);
>+    EXPECT_TRUE(v1.get_allocator() == a2);
>+  }
>+  EXPECT_THAT(allocated1, 0);
>+  EXPECT_THAT(allocated2, 0);
>+}
>+
>+TEST(AllocatorSupportTest, ScopedAllocatorWorks) {
>+  using StdVector = std::vector<int, CountingAllocator<int>>;
>+  using MyAlloc =
>+      std::scoped_allocator_adaptor<CountingAllocator<StdVector>>;
>+  using AllocVec = absl::InlinedVector<StdVector, 4, MyAlloc>;
>+
>+  int64_t allocated = 0;
>+  AllocVec vec(MyAlloc{CountingAllocator<StdVector>{&allocated}});
>+  EXPECT_EQ(allocated, 0);
>+
>+  // This default constructs a vector<int>, but the allocator should pass itself
>+  // into the vector<int>.
>+  // The absl::InlinedVector does not allocate any memory.
>+  // The vector<int> does not allocate any memory.
>+  vec.resize(1);
>+  EXPECT_EQ(allocated, 0);
>+
>+  // We make vector<int> allocate memory.
>+  // It must go through the allocator even though we didn't construct the
>+  // vector directly.
>+  vec[0].push_back(1);
>+  EXPECT_EQ(allocated, sizeof(int) * 1);
>+
>+  // Another allocating vector.
>+  vec.push_back(vec[0]);
>+  EXPECT_EQ(allocated, sizeof(int) * 2);
>+
>+  // Overflow the inlined memory.
>+  // The absl::InlinedVector will now allocate.
>+  vec.resize(5);
>+  EXPECT_EQ(allocated, sizeof(int) * 2 + sizeof(StdVector) * 8);
>+
>+  // Adding one more in external mode should also work.
>+  vec.push_back(vec[0]);
>+  EXPECT_EQ(allocated, sizeof(int) * 3 + sizeof(StdVector) * 8);
>+
>+  // And extending these should still work.
>+  vec[0].push_back(1);
>+  EXPECT_EQ(allocated, sizeof(int) * 4 + sizeof(StdVector) * 8);
>+
>+  vec.clear();
>+  EXPECT_EQ(allocated, 0);
>+}
>+
>+TEST(AllocatorSupportTest, SizeAllocConstructor) {
>+  constexpr int inlined_size = 4;
>+  using Alloc = CountingAllocator<int>;
>+  using AllocVec = absl::InlinedVector<int, inlined_size, Alloc>;
>+
>+  {
>+    auto len = inlined_size / 2;
>+    int64_t allocated = 0;
>+    auto v = AllocVec(len, Alloc(&allocated));
>+
>+    // Inline storage used; allocator should not be invoked
>+    EXPECT_THAT(allocated, 0);
>+    EXPECT_THAT(v, AllOf(SizeIs(len), Each(0)));
>+  }
>+
>+  {
>+    auto len = inlined_size * 2;
>+    int64_t allocated = 0;
>+    auto v = AllocVec(len, Alloc(&allocated));
>+
>+    // Out of line storage used; allocation of 8 elements expected
>+    EXPECT_THAT(allocated, len * sizeof(int));
>+    EXPECT_THAT(v, AllOf(SizeIs(len), Each(0)));
>+  }
>+}
>+}  // anonymous namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc52614f5b37ff3774beb3103cba1be950be9d7b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple.h
>@@ -0,0 +1,175 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Helper class to perform the Empty Base Optimization.
>+// Ts can contain classes and non-classes, empty or not. For the ones that
>+// are empty classes, we perform the optimization. If all types in Ts are empty
>+// classes, then CompressedTuple<Ts...> is itself an empty class.
>+//
>+// To access the members, use member get<N>() function.
>+//
>+// Eg:
>+//   absl::container_internal::CompressedTuple<int, T1, T2, T3> value(7, t1, t2,
>+//                                                                    t3);
>+//   assert(value.get<0>() == 7);
>+//   T1& t1 = value.get<1>();
>+//   const T2& t2 = value.get<2>();
>+//   ...
>+//
>+// http://en.cppreference.com/w/cpp/language/ebo
>+
>+#ifndef ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_
>+#define ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_
>+
>+#include <tuple>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/utility/utility.h"
>+
>+#ifdef _MSC_VER
>+// We need to mark these classes with this declspec to ensure that
>+// CompressedTuple happens.
>+#define ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC __declspec(empty_bases)
>+#else  // _MSC_VER
>+#define ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC
>+#endif  // _MSC_VER
>+
>+namespace absl {
>+namespace container_internal {
>+
>+template <typename... Ts>
>+class CompressedTuple;
>+
>+namespace internal_compressed_tuple {
>+
>+template <typename D, size_t I>
>+struct Elem;
>+template <typename... B, size_t I>
>+struct Elem<CompressedTuple<B...>, I>
>+    : std::tuple_element<I, std::tuple<B...>> {};
>+template <typename D, size_t I>
>+using ElemT = typename Elem<D, I>::type;
>+
>+// Use the __is_final intrinsic if available. Where it's not available, classes
>+// declared with the 'final' specifier cannot be used as CompressedTuple
>+// elements.
>+// TODO(sbenza): Replace this with std::is_final in C++14.
>+template <typename T>
>+constexpr bool IsFinal() {
>+#if defined(__clang__) || defined(__GNUC__)
>+  return __is_final(T);
>+#else
>+  return false;
>+#endif
>+}
>+
>+template <typename T>
>+constexpr bool ShouldUseBase() {
>+  return std::is_class<T>::value && std::is_empty<T>::value && !IsFinal<T>();
>+}
>+
>+// The storage class provides two specializations:
>+//  - For empty classes, it stores T as a base class.
>+//  - For everything else, it stores T as a member.
>+template <typename D, size_t I, bool = ShouldUseBase<ElemT<D, I>>()>
>+struct Storage {
>+  using T = ElemT<D, I>;
>+  T value;
>+  constexpr Storage() = default;
>+  explicit constexpr Storage(T&& v) : value(absl::forward<T>(v)) {}
>+  constexpr const T& get() const { return value; }
>+  T& get() { return value; }
>+};
>+
>+template <typename D, size_t I>
>+struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC Storage<D, I, true>
>+    : ElemT<D, I> {
>+  using T = internal_compressed_tuple::ElemT<D, I>;
>+  constexpr Storage() = default;
>+  explicit constexpr Storage(T&& v) : T(absl::forward<T>(v)) {}
>+  constexpr const T& get() const { return *this; }
>+  T& get() { return *this; }
>+};
>+
>+template <typename D, typename I>
>+struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTupleImpl;
>+
>+template <typename... Ts, size_t... I>
>+struct ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC
>+    CompressedTupleImpl<CompressedTuple<Ts...>, absl::index_sequence<I...>>
>+    // We use the dummy identity function through std::integral_constant to
>+    // convince MSVC of accepting and expanding I in that context. Without it
>+    // you would get:
>+    //   error C3548: 'I': parameter pack cannot be used in this context
>+    : Storage<CompressedTuple<Ts...>,
>+              std::integral_constant<size_t, I>::value>... {
>+  constexpr CompressedTupleImpl() = default;
>+  explicit constexpr CompressedTupleImpl(Ts&&... args)
>+      : Storage<CompressedTuple<Ts...>, I>(absl::forward<Ts>(args))... {}
>+};
>+
>+}  // namespace internal_compressed_tuple
>+
>+// Helper class to perform the Empty Base Class Optimization.
>+// Ts can contain classes and non-classes, empty or not. For the ones that
>+// are empty classes, we perform the CompressedTuple. If all types in Ts are
>+// empty classes, then CompressedTuple<Ts...> is itself an empty class.
>+//
>+// To access the members, use member .get<N>() function.
>+//
>+// Eg:
>+//   absl::container_internal::CompressedTuple<int, T1, T2, T3> value(7, t1, t2,
>+//                                                                    t3);
>+//   assert(value.get<0>() == 7);
>+//   T1& t1 = value.get<1>();
>+//   const T2& t2 = value.get<2>();
>+//   ...
>+//
>+// http://en.cppreference.com/w/cpp/language/ebo
>+template <typename... Ts>
>+class ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTuple
>+    : private internal_compressed_tuple::CompressedTupleImpl<
>+          CompressedTuple<Ts...>, absl::index_sequence_for<Ts...>> {
>+ private:
>+  template <int I>
>+  using ElemT = internal_compressed_tuple::ElemT<CompressedTuple, I>;
>+
>+ public:
>+  constexpr CompressedTuple() = default;
>+  explicit constexpr CompressedTuple(Ts... base)
>+      : CompressedTuple::CompressedTupleImpl(absl::forward<Ts>(base)...) {}
>+
>+  template <int I>
>+  ElemT<I>& get() {
>+    return internal_compressed_tuple::Storage<CompressedTuple, I>::get();
>+  }
>+
>+  template <int I>
>+  constexpr const ElemT<I>& get() const {
>+    return internal_compressed_tuple::Storage<CompressedTuple, I>::get();
>+  }
>+};
>+
>+// Explicit specialization for a zero-element tuple
>+// (needed to avoid ambiguous overloads for the default constructor).
>+template <>
>+class ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC CompressedTuple<> {};
>+
>+}  // namespace container_internal
>+}  // namespace absl
>+
>+#undef ABSL_INTERNAL_COMPRESSED_TUPLE_DECLSPEC
>+
>+#endif  // ABSL_CONTAINER_INTERNAL_COMPRESSED_TUPLE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..45030c675ee1adaf24272401b26cbd9ac53a97a7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/compressed_tuple_test.cc
>@@ -0,0 +1,166 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/internal/compressed_tuple.h"
>+
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace container_internal {
>+namespace {
>+
>+template <int>
>+struct Empty {};
>+
>+template <typename T>
>+struct NotEmpty {
>+  T value;
>+};
>+
>+template <typename T, typename U>
>+struct TwoValues {
>+  T value1;
>+  U value2;
>+};
>+
>+TEST(CompressedTupleTest, Sizeof) {
>+  EXPECT_EQ(sizeof(int), sizeof(CompressedTuple<int>));
>+  EXPECT_EQ(sizeof(int), sizeof(CompressedTuple<int, Empty<0>>));
>+  EXPECT_EQ(sizeof(int), sizeof(CompressedTuple<int, Empty<0>, Empty<1>>));
>+  EXPECT_EQ(sizeof(int),
>+            sizeof(CompressedTuple<int, Empty<0>, Empty<1>, Empty<2>>));
>+
>+  EXPECT_EQ(sizeof(TwoValues<int, double>),
>+            sizeof(CompressedTuple<int, NotEmpty<double>>));
>+  EXPECT_EQ(sizeof(TwoValues<int, double>),
>+            sizeof(CompressedTuple<int, Empty<0>, NotEmpty<double>>));
>+  EXPECT_EQ(sizeof(TwoValues<int, double>),
>+            sizeof(CompressedTuple<int, Empty<0>, NotEmpty<double>, Empty<1>>));
>+}
>+
>+TEST(CompressedTupleTest, Access) {
>+  struct S {
>+    std::string x;
>+  };
>+  CompressedTuple<int, Empty<0>, S> x(7, {}, S{"ABC"});
>+  EXPECT_EQ(sizeof(x), sizeof(TwoValues<int, S>));
>+  EXPECT_EQ(7, x.get<0>());
>+  EXPECT_EQ("ABC", x.get<2>().x);
>+}
>+
>+TEST(CompressedTupleTest, NonClasses) {
>+  CompressedTuple<int, const char*> x(7, "ABC");
>+  EXPECT_EQ(7, x.get<0>());
>+  EXPECT_STREQ("ABC", x.get<1>());
>+}
>+
>+TEST(CompressedTupleTest, MixClassAndNonClass) {
>+  CompressedTuple<int, const char*, Empty<0>, NotEmpty<double>> x(7, "ABC", {},
>+                                                                  {1.25});
>+  struct Mock {
>+    int v;
>+    const char* p;
>+    double d;
>+  };
>+  EXPECT_EQ(sizeof(x), sizeof(Mock));
>+  EXPECT_EQ(7, x.get<0>());
>+  EXPECT_STREQ("ABC", x.get<1>());
>+  EXPECT_EQ(1.25, x.get<3>().value);
>+}
>+
>+TEST(CompressedTupleTest, Nested) {
>+  CompressedTuple<int, CompressedTuple<int>,
>+                  CompressedTuple<int, CompressedTuple<int>>>
>+      x(1, CompressedTuple<int>(2),
>+        CompressedTuple<int, CompressedTuple<int>>(3, CompressedTuple<int>(4)));
>+  EXPECT_EQ(1, x.get<0>());
>+  EXPECT_EQ(2, x.get<1>().get<0>());
>+  EXPECT_EQ(3, x.get<2>().get<0>());
>+  EXPECT_EQ(4, x.get<2>().get<1>().get<0>());
>+
>+  CompressedTuple<Empty<0>, Empty<0>,
>+                  CompressedTuple<Empty<0>, CompressedTuple<Empty<0>>>>
>+      y;
>+  std::set<Empty<0>*> empties{&y.get<0>(), &y.get<1>(), &y.get<2>().get<0>(),
>+                              &y.get<2>().get<1>().get<0>()};
>+#ifdef _MSC_VER
>+  // MSVC has a bug where many instances of the same base class are layed out in
>+  // the same address when using __declspec(empty_bases).
>+  // This will be fixed in a future version of MSVC.
>+  int expected = 1;
>+#else
>+  int expected = 4;
>+#endif
>+  EXPECT_EQ(expected, sizeof(y));
>+  EXPECT_EQ(expected, empties.size());
>+  EXPECT_EQ(sizeof(y), sizeof(Empty<0>) * empties.size());
>+
>+  EXPECT_EQ(4 * sizeof(char),
>+            sizeof(CompressedTuple<CompressedTuple<char, char>,
>+                                   CompressedTuple<char, char>>));
>+  EXPECT_TRUE(
>+      (std::is_empty<CompressedTuple<CompressedTuple<Empty<0>>,
>+                                     CompressedTuple<Empty<1>>>>::value));
>+}
>+
>+TEST(CompressedTupleTest, Reference) {
>+  int i = 7;
>+  std::string s = "Very long std::string that goes in the heap";
>+  CompressedTuple<int, int&, std::string, std::string&> x(i, i, s, s);
>+
>+  // Sanity check. We should have not moved from `s`
>+  EXPECT_EQ(s, "Very long std::string that goes in the heap");
>+
>+  EXPECT_EQ(x.get<0>(), x.get<1>());
>+  EXPECT_NE(&x.get<0>(), &x.get<1>());
>+  EXPECT_EQ(&x.get<1>(), &i);
>+
>+  EXPECT_EQ(x.get<2>(), x.get<3>());
>+  EXPECT_NE(&x.get<2>(), &x.get<3>());
>+  EXPECT_EQ(&x.get<3>(), &s);
>+}
>+
>+TEST(CompressedTupleTest, NoElements) {
>+  CompressedTuple<> x;
>+  static_cast<void>(x);  // Silence -Wunused-variable.
>+  EXPECT_TRUE(std::is_empty<CompressedTuple<>>::value);
>+}
>+
>+TEST(CompressedTupleTest, Constexpr) {
>+  constexpr CompressedTuple<int, double, CompressedTuple<int>> x(
>+      7, 1.25, CompressedTuple<int>(5));
>+  constexpr int x0 = x.get<0>();
>+  constexpr double x1 = x.get<1>();
>+  constexpr int x2 = x.get<2>().get<0>();
>+  EXPECT_EQ(x0, 7);
>+  EXPECT_EQ(x1, 1.25);
>+  EXPECT_EQ(x2, 5);
>+}
>+
>+#if defined(__clang__) || defined(__GNUC__)
>+TEST(CompressedTupleTest, EmptyFinalClass) {
>+  struct S final {
>+    int f() const { return 5; }
>+  };
>+  CompressedTuple<S> x;
>+  EXPECT_EQ(x.get<0>().f(), 5);
>+}
>+#endif
>+
>+}  // namespace
>+}  // namespace container_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fe00aca8fb98f120f235202369b0b5be876d4747
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.cc
>@@ -0,0 +1,26 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/internal/test_instance_tracker.h"
>+
>+namespace absl {
>+namespace test_internal {
>+int BaseCountedInstance::num_instances_ = 0;
>+int BaseCountedInstance::num_live_instances_ = 0;
>+int BaseCountedInstance::num_moves_ = 0;
>+int BaseCountedInstance::num_copies_ = 0;
>+int BaseCountedInstance::num_swaps_ = 0;
>+
>+}  // namespace test_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf8f3a531e6212fcaa13d6535170af86bffa698a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker.h
>@@ -0,0 +1,220 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_
>+#define ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_
>+
>+#include <cstdlib>
>+#include <ostream>
>+
>+namespace absl {
>+namespace test_internal {
>+
>+// A type that counts number of occurences of the type, the live occurrences of
>+// the type, as well as the number of copies, moves, and swaps that have
>+// occurred on the type. This is used as a base class for the copyable,
>+// copyable+movable, and movable types below that are used in actual tests. Use
>+// InstanceTracker in tests to track the number of instances.
>+class BaseCountedInstance {
>+ public:
>+  explicit BaseCountedInstance(int x) : value_(x) {
>+    ++num_instances_;
>+    ++num_live_instances_;
>+  }
>+  BaseCountedInstance(const BaseCountedInstance& x)
>+      : value_(x.value_), is_live_(x.is_live_) {
>+    ++num_instances_;
>+    if (is_live_) ++num_live_instances_;
>+    ++num_copies_;
>+  }
>+  BaseCountedInstance(BaseCountedInstance&& x)
>+      : value_(x.value_), is_live_(x.is_live_) {
>+    x.is_live_ = false;
>+    ++num_instances_;
>+    ++num_moves_;
>+  }
>+  ~BaseCountedInstance() {
>+    --num_instances_;
>+    if (is_live_) --num_live_instances_;
>+  }
>+
>+  BaseCountedInstance& operator=(const BaseCountedInstance& x) {
>+    value_ = x.value_;
>+    if (is_live_) --num_live_instances_;
>+    is_live_ = x.is_live_;
>+    if (is_live_) ++num_live_instances_;
>+    ++num_copies_;
>+    return *this;
>+  }
>+  BaseCountedInstance& operator=(BaseCountedInstance&& x) {
>+    value_ = x.value_;
>+    if (is_live_) --num_live_instances_;
>+    is_live_ = x.is_live_;
>+    x.is_live_ = false;
>+    ++num_moves_;
>+    return *this;
>+  }
>+
>+  int value() const {
>+    if (!is_live_) std::abort();
>+    return value_;
>+  }
>+
>+  friend std::ostream& operator<<(std::ostream& o,
>+                                  const BaseCountedInstance& v) {
>+    return o << "[value:" << v.value() << "]";
>+  }
>+
>+  // Implementation of efficient swap() that counts swaps.
>+  static void SwapImpl(
>+      BaseCountedInstance& lhs,    // NOLINT(runtime/references)
>+      BaseCountedInstance& rhs) {  // NOLINT(runtime/references)
>+    using std::swap;
>+    swap(lhs.value_, rhs.value_);
>+    swap(lhs.is_live_, rhs.is_live_);
>+    ++BaseCountedInstance::num_swaps_;
>+  }
>+
>+ private:
>+  friend class InstanceTracker;
>+
>+  int value_;
>+
>+  // Indicates if the value is live, ie it hasn't been moved away from.
>+  bool is_live_ = true;
>+
>+  // Number of instances.
>+  static int num_instances_;
>+
>+  // Number of live instances (those that have not been moved away from.)
>+  static int num_live_instances_;
>+
>+  // Number of times that BaseCountedInstance objects were moved.
>+  static int num_moves_;
>+
>+  // Number of times that BaseCountedInstance objects were copied.
>+  static int num_copies_;
>+
>+  // Number of times that BaseCountedInstance objects were swapped.
>+  static int num_swaps_;
>+};
>+
>+// Helper to track the BaseCountedInstance instance counters. Expects that the
>+// number of instances and live_instances are the same when it is constructed
>+// and when it is destructed.
>+class InstanceTracker {
>+ public:
>+  InstanceTracker()
>+      : start_instances_(BaseCountedInstance::num_instances_),
>+        start_live_instances_(BaseCountedInstance::num_live_instances_) {
>+    ResetCopiesMovesSwaps();
>+  }
>+  ~InstanceTracker() {
>+    if (instances() != 0) std::abort();
>+    if (live_instances() != 0) std::abort();
>+  }
>+
>+  // Returns the number of BaseCountedInstance instances both containing valid
>+  // values and those moved away from compared to when the InstanceTracker was
>+  // constructed
>+  int instances() const {
>+    return BaseCountedInstance::num_instances_ - start_instances_;
>+  }
>+
>+  // Returns the number of live BaseCountedInstance instances compared to when
>+  // the InstanceTracker was constructed
>+  int live_instances() const {
>+    return BaseCountedInstance::num_live_instances_ - start_live_instances_;
>+  }
>+
>+  // Returns the number of moves on BaseCountedInstance objects since
>+  // construction or since the last call to ResetCopiesMovesSwaps().
>+  int moves() const { return BaseCountedInstance::num_moves_ - start_moves_; }
>+
>+  // Returns the number of copies on BaseCountedInstance objects since
>+  // construction or the last call to ResetCopiesMovesSwaps().
>+  int copies() const {
>+    return BaseCountedInstance::num_copies_ - start_copies_;
>+  }
>+
>+  // Returns the number of swaps on BaseCountedInstance objects since
>+  // construction or the last call to ResetCopiesMovesSwaps().
>+  int swaps() const { return BaseCountedInstance::num_swaps_ - start_swaps_; }
>+
>+  // Resets the base values for moves, copies and swaps to the current values,
>+  // so that subsequent Get*() calls for moves, copies and swaps will compare to
>+  // the situation at the point of this call.
>+  void ResetCopiesMovesSwaps() {
>+    start_moves_ = BaseCountedInstance::num_moves_;
>+    start_copies_ = BaseCountedInstance::num_copies_;
>+    start_swaps_ = BaseCountedInstance::num_swaps_;
>+  }
>+
>+ private:
>+  int start_instances_;
>+  int start_live_instances_;
>+  int start_moves_;
>+  int start_copies_;
>+  int start_swaps_;
>+};
>+
>+// Copyable, not movable.
>+class CopyableOnlyInstance : public BaseCountedInstance {
>+ public:
>+  explicit CopyableOnlyInstance(int x) : BaseCountedInstance(x) {}
>+  CopyableOnlyInstance(const CopyableOnlyInstance& rhs) = default;
>+  CopyableOnlyInstance& operator=(const CopyableOnlyInstance& rhs) = default;
>+
>+  friend void swap(CopyableOnlyInstance& lhs, CopyableOnlyInstance& rhs) {
>+    BaseCountedInstance::SwapImpl(lhs, rhs);
>+  }
>+
>+  static bool supports_move() { return false; }
>+};
>+
>+// Copyable and movable.
>+class CopyableMovableInstance : public BaseCountedInstance {
>+ public:
>+  explicit CopyableMovableInstance(int x) : BaseCountedInstance(x) {}
>+  CopyableMovableInstance(const CopyableMovableInstance& rhs) = default;
>+  CopyableMovableInstance(CopyableMovableInstance&& rhs) = default;
>+  CopyableMovableInstance& operator=(const CopyableMovableInstance& rhs) =
>+      default;
>+  CopyableMovableInstance& operator=(CopyableMovableInstance&& rhs) = default;
>+
>+  friend void swap(CopyableMovableInstance& lhs, CopyableMovableInstance& rhs) {
>+    BaseCountedInstance::SwapImpl(lhs, rhs);
>+  }
>+
>+  static bool supports_move() { return true; }
>+};
>+
>+// Only movable, not default-constructible.
>+class MovableOnlyInstance : public BaseCountedInstance {
>+ public:
>+  explicit MovableOnlyInstance(int x) : BaseCountedInstance(x) {}
>+  MovableOnlyInstance(MovableOnlyInstance&& other) = default;
>+  MovableOnlyInstance& operator=(MovableOnlyInstance&& other) = default;
>+
>+  friend void swap(MovableOnlyInstance& lhs, MovableOnlyInstance& rhs) {
>+    BaseCountedInstance::SwapImpl(lhs, rhs);
>+  }
>+
>+  static bool supports_move() { return true; }
>+};
>+
>+}  // namespace test_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_CONTAINER_INTERNAL_TEST_INSTANCE_TRACKER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9efb6771cf086db16fef39460c591921ecd5f691
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/container/internal/test_instance_tracker_test.cc
>@@ -0,0 +1,160 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/container/internal/test_instance_tracker.h"
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+using absl::test_internal::CopyableMovableInstance;
>+using absl::test_internal::CopyableOnlyInstance;
>+using absl::test_internal::InstanceTracker;
>+using absl::test_internal::MovableOnlyInstance;
>+
>+TEST(TestInstanceTracker, CopyableMovable) {
>+  InstanceTracker tracker;
>+  CopyableMovableInstance src(1);
>+  EXPECT_EQ(1, src.value()) << src;
>+  CopyableMovableInstance copy(src);
>+  CopyableMovableInstance move(std::move(src));
>+  EXPECT_EQ(1, tracker.copies());
>+  EXPECT_EQ(1, tracker.moves());
>+  EXPECT_EQ(0, tracker.swaps());
>+  EXPECT_EQ(3, tracker.instances());
>+  EXPECT_EQ(2, tracker.live_instances());
>+  tracker.ResetCopiesMovesSwaps();
>+
>+  CopyableMovableInstance copy_assign(1);
>+  copy_assign = copy;
>+  CopyableMovableInstance move_assign(1);
>+  move_assign = std::move(move);
>+  EXPECT_EQ(1, tracker.copies());
>+  EXPECT_EQ(1, tracker.moves());
>+  EXPECT_EQ(0, tracker.swaps());
>+  EXPECT_EQ(5, tracker.instances());
>+  EXPECT_EQ(3, tracker.live_instances());
>+  tracker.ResetCopiesMovesSwaps();
>+
>+  {
>+    using std::swap;
>+    swap(move_assign, copy);
>+    swap(copy, move_assign);
>+    EXPECT_EQ(2, tracker.swaps());
>+    EXPECT_EQ(0, tracker.copies());
>+    EXPECT_EQ(0, tracker.moves());
>+    EXPECT_EQ(5, tracker.instances());
>+    EXPECT_EQ(3, tracker.live_instances());
>+  }
>+}
>+
>+TEST(TestInstanceTracker, CopyableOnly) {
>+  InstanceTracker tracker;
>+  CopyableOnlyInstance src(1);
>+  EXPECT_EQ(1, src.value()) << src;
>+  CopyableOnlyInstance copy(src);
>+  CopyableOnlyInstance copy2(std::move(src));  // NOLINT
>+  EXPECT_EQ(2, tracker.copies());
>+  EXPECT_EQ(0, tracker.moves());
>+  EXPECT_EQ(3, tracker.instances());
>+  EXPECT_EQ(3, tracker.live_instances());
>+  tracker.ResetCopiesMovesSwaps();
>+
>+  CopyableOnlyInstance copy_assign(1);
>+  copy_assign = copy;
>+  CopyableOnlyInstance copy_assign2(1);
>+  copy_assign2 = std::move(copy2);  // NOLINT
>+  EXPECT_EQ(2, tracker.copies());
>+  EXPECT_EQ(0, tracker.moves());
>+  EXPECT_EQ(5, tracker.instances());
>+  EXPECT_EQ(5, tracker.live_instances());
>+  tracker.ResetCopiesMovesSwaps();
>+
>+  {
>+    using std::swap;
>+    swap(src, copy);
>+    swap(copy, src);
>+    EXPECT_EQ(2, tracker.swaps());
>+    EXPECT_EQ(0, tracker.copies());
>+    EXPECT_EQ(0, tracker.moves());
>+    EXPECT_EQ(5, tracker.instances());
>+    EXPECT_EQ(5, tracker.live_instances());
>+  }
>+}
>+
>+TEST(TestInstanceTracker, MovableOnly) {
>+  InstanceTracker tracker;
>+  MovableOnlyInstance src(1);
>+  EXPECT_EQ(1, src.value()) << src;
>+  MovableOnlyInstance move(std::move(src));
>+  MovableOnlyInstance move_assign(2);
>+  move_assign = std::move(move);
>+  EXPECT_EQ(3, tracker.instances());
>+  EXPECT_EQ(1, tracker.live_instances());
>+  EXPECT_EQ(2, tracker.moves());
>+  EXPECT_EQ(0, tracker.copies());
>+  tracker.ResetCopiesMovesSwaps();
>+
>+  {
>+    using std::swap;
>+    MovableOnlyInstance other(2);
>+    swap(move_assign, other);
>+    swap(other, move_assign);
>+    EXPECT_EQ(2, tracker.swaps());
>+    EXPECT_EQ(0, tracker.copies());
>+    EXPECT_EQ(0, tracker.moves());
>+    EXPECT_EQ(4, tracker.instances());
>+    EXPECT_EQ(2, tracker.live_instances());
>+  }
>+}
>+
>+TEST(TestInstanceTracker, ExistingInstances) {
>+  CopyableMovableInstance uncounted_instance(1);
>+  CopyableMovableInstance uncounted_live_instance(
>+      std::move(uncounted_instance));
>+  InstanceTracker tracker;
>+  EXPECT_EQ(0, tracker.instances());
>+  EXPECT_EQ(0, tracker.live_instances());
>+  EXPECT_EQ(0, tracker.copies());
>+  {
>+    CopyableMovableInstance instance1(1);
>+    EXPECT_EQ(1, tracker.instances());
>+    EXPECT_EQ(1, tracker.live_instances());
>+    EXPECT_EQ(0, tracker.copies());
>+    EXPECT_EQ(0, tracker.moves());
>+    {
>+      InstanceTracker tracker2;
>+      CopyableMovableInstance instance2(instance1);
>+      CopyableMovableInstance instance3(std::move(instance2));
>+      EXPECT_EQ(3, tracker.instances());
>+      EXPECT_EQ(2, tracker.live_instances());
>+      EXPECT_EQ(1, tracker.copies());
>+      EXPECT_EQ(1, tracker.moves());
>+      EXPECT_EQ(2, tracker2.instances());
>+      EXPECT_EQ(1, tracker2.live_instances());
>+      EXPECT_EQ(1, tracker2.copies());
>+      EXPECT_EQ(1, tracker2.moves());
>+    }
>+    EXPECT_EQ(1, tracker.instances());
>+    EXPECT_EQ(1, tracker.live_instances());
>+    EXPECT_EQ(1, tracker.copies());
>+    EXPECT_EQ(1, tracker.moves());
>+  }
>+  EXPECT_EQ(0, tracker.instances());
>+  EXPECT_EQ(0, tracker.live_instances());
>+  EXPECT_EQ(1, tracker.copies());
>+  EXPECT_EQ(1, tracker.moves());
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/copts.bzl b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/copts.bzl
>new file mode 100644
>index 0000000000000000000000000000000000000000..0168ac5abddc39ff7c4781ff5e3e2e9be0a2057e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/copts.bzl
>@@ -0,0 +1,154 @@
>+"""absl specific copts.
>+
>+Flags specified here must not impact ABI. Code compiled with and without these
>+opts will be linked together, and in some cases headers compiled with and
>+without these options will be part of the same program.
>+"""
>+GCC_FLAGS = [
>+    "-Wall",
>+    "-Wextra",
>+    "-Wcast-qual",
>+    "-Wconversion-null",
>+    "-Wmissing-declarations",
>+    "-Woverlength-strings",
>+    "-Wpointer-arith",
>+    "-Wunused-local-typedefs",
>+    "-Wunused-result",
>+    "-Wvarargs",
>+    "-Wvla",  # variable-length array
>+    "-Wwrite-strings",
>+    # Google style does not use unsigned integers, though STL containers
>+    # have unsigned types.
>+    "-Wno-sign-compare",
>+]
>+
>+GCC_TEST_FLAGS = [
>+    "-Wno-conversion-null",
>+    "-Wno-missing-declarations",
>+    "-Wno-sign-compare",
>+    "-Wno-unused-function",
>+    "-Wno-unused-parameter",
>+    "-Wno-unused-private-field",
>+]
>+
>+# Docs on single flags is preceded by a comment.
>+# Docs on groups of flags is preceded by ###.
>+
>+LLVM_FLAGS = [
>+    # All warnings are treated as errors by implicit -Werror flag
>+    "-Wall",
>+    "-Wextra",
>+    "-Weverything",
>+    # Abseil does not support C++98
>+    "-Wno-c++98-compat-pedantic",
>+    # Turns off all implicit conversion warnings. Most are re-enabled below.
>+    "-Wno-conversion",
>+    "-Wno-covered-switch-default",
>+    "-Wno-deprecated",
>+    "-Wno-disabled-macro-expansion",
>+    "-Wno-double-promotion",
>+    ###
>+    # Turned off as they include valid C++ code.
>+    "-Wno-comma",
>+    "-Wno-extra-semi",
>+    "-Wno-packed",
>+    "-Wno-padded",
>+    ###
>+    "-Wno-float-conversion",
>+    "-Wno-float-equal",
>+    "-Wno-format-nonliteral",
>+    # Too aggressive: warns on Clang extensions enclosed in Clang-only
>+    # compilation paths.
>+    "-Wno-gcc-compat",
>+    ###
>+    # Some internal globals are necessary. Don't do this at home.
>+    "-Wno-global-constructors",
>+    "-Wno-exit-time-destructors",
>+    ###
>+    "-Wno-nested-anon-types",
>+    "-Wno-non-modular-include-in-module",
>+    "-Wno-old-style-cast",
>+    # Warns on preferred usage of non-POD types such as string_view
>+    "-Wno-range-loop-analysis",
>+    "-Wno-reserved-id-macro",
>+    "-Wno-shorten-64-to-32",
>+    "-Wno-switch-enum",
>+    "-Wno-thread-safety-negative",
>+    "-Wno-undef",
>+    "-Wno-unknown-warning-option",
>+    "-Wno-unreachable-code",
>+    # Causes warnings on include guards
>+    "-Wno-unused-macros",
>+    "-Wno-weak-vtables",
>+    ###
>+    # Implicit conversion warnings turned off by -Wno-conversion
>+    # which are re-enabled below.
>+    "-Wbitfield-enum-conversion",
>+    "-Wbool-conversion",
>+    "-Wconstant-conversion",
>+    "-Wenum-conversion",
>+    "-Wint-conversion",
>+    "-Wliteral-conversion",
>+    "-Wnon-literal-null-conversion",
>+    "-Wnull-conversion",
>+    "-Wobjc-literal-conversion",
>+    "-Wno-sign-conversion",
>+    "-Wstring-conversion",
>+    ###
>+]
>+
>+LLVM_TEST_FLAGS = [
>+    "-Wno-c99-extensions",
>+    "-Wno-missing-noreturn",
>+    "-Wno-missing-prototypes",
>+    "-Wno-null-conversion",
>+    "-Wno-shadow",
>+    "-Wno-shift-sign-overflow",
>+    "-Wno-sign-compare",
>+    "-Wno-unused-function",
>+    "-Wno-unused-member-function",
>+    "-Wno-unused-parameter",
>+    "-Wno-unused-private-field",
>+    "-Wno-unused-template",
>+    "-Wno-used-but-marked-unused",
>+    "-Wno-zero-as-null-pointer-constant",
>+]
>+
>+MSVC_FLAGS = [
>+    "/W3",
>+    "/WX",
>+    "/wd4005",  # macro-redefinition
>+    "/wd4068",  # unknown pragma
>+    "/wd4244",  # conversion from 'type1' to 'type2', possible loss of data
>+    "/wd4267",  # conversion from 'size_t' to 'type', possible loss of data
>+    "/wd4800",  # forcing value to bool 'true' or 'false' (performance warning)
>+    "/DNOMINMAX",  # Don't define min and max macros (windows.h)
>+    "/DWIN32_LEAN_AND_MEAN",  # Don't bloat namespace with incompatible winsock versions.
>+    "/D_CRT_SECURE_NO_WARNINGS",  # Don't warn about usage of insecure C functions
>+]
>+
>+MSVC_TEST_FLAGS = [
>+    "/wd4018",  # signed/unsigned mismatch
>+    "/wd4101",  # unreferenced local variable
>+    "/wd4503",  # decorated name length exceeded, name was truncated
>+]
>+
>+# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
>+ABSL_DEFAULT_COPTS = select({
>+    "//absl:windows": MSVC_FLAGS,
>+    "//absl:llvm_compiler": LLVM_FLAGS,
>+    "//conditions:default": GCC_FLAGS,
>+})
>+
>+# in absence of modules (--compiler=gcc or -c opt), cc_tests leak their copts
>+# to their (included header) dependencies and fail to build outside absl
>+ABSL_TEST_COPTS = ABSL_DEFAULT_COPTS + select({
>+    "//absl:windows": MSVC_TEST_FLAGS,
>+    "//absl:llvm_compiler": LLVM_TEST_FLAGS,
>+    "//conditions:default": GCC_TEST_FLAGS,
>+})
>+
>+ABSL_EXCEPTIONS_FLAG = select({
>+    "//absl:windows": ["/U_HAS_EXCEPTIONS", "/D_HAS_EXCEPTIONS=1", "/EHsc"],
>+    "//conditions:default": ["-fexceptions"],
>+})
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..e1e7fced69fb9a9cf448493deeacde9864d97989
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.bazel
>@@ -0,0 +1,305 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(
>+    default_visibility = ["//visibility:public"],
>+)
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "stacktrace",
>+    srcs = [
>+        "stacktrace.cc",
>+    ],
>+    hdrs = ["stacktrace.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":debugging_internal",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_library(
>+    name = "symbolize",
>+    srcs = [
>+        "symbolize.cc",
>+        "symbolize_elf.inc",
>+        "symbolize_unimplemented.inc",
>+        "symbolize_win32.inc",
>+    ],
>+    hdrs = [
>+        "internal/symbolize.h",
>+        "symbolize.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":debugging_internal",
>+        ":demangle_internal",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/base:malloc_internal",
>+    ],
>+)
>+
>+cc_test(
>+    name = "symbolize_test",
>+    srcs = ["symbolize_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":stack_consumption",
>+        ":symbolize",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest",
>+    ],
>+)
>+
>+cc_library(
>+    name = "examine_stack",
>+    srcs = [
>+        "internal/examine_stack.cc",
>+    ],
>+    hdrs = [
>+        "internal/examine_stack.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":stacktrace",
>+        ":symbolize",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_library(
>+    name = "failure_signal_handler",
>+    srcs = ["failure_signal_handler.cc"],
>+    hdrs = ["failure_signal_handler.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":examine_stack",
>+        ":stacktrace",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "failure_signal_handler_test",
>+    srcs = ["failure_signal_handler_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    linkopts = select({
>+        "//absl:windows": [],
>+        "//conditions:default": ["-pthread"],
>+    }),
>+    deps = [
>+        ":failure_signal_handler",
>+        ":stacktrace",
>+        ":symbolize",
>+        "//absl/base",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest",
>+    ],
>+)
>+
>+cc_library(
>+    name = "debugging_internal",
>+    srcs = [
>+        "internal/address_is_readable.cc",
>+        "internal/elf_mem_image.cc",
>+        "internal/vdso_support.cc",
>+    ],
>+    hdrs = [
>+        "internal/address_is_readable.h",
>+        "internal/elf_mem_image.h",
>+        "internal/stacktrace_aarch64-inl.inc",
>+        "internal/stacktrace_arm-inl.inc",
>+        "internal/stacktrace_config.h",
>+        "internal/stacktrace_generic-inl.inc",
>+        "internal/stacktrace_powerpc-inl.inc",
>+        "internal/stacktrace_unimplemented-inl.inc",
>+        "internal/stacktrace_win32-inl.inc",
>+        "internal/stacktrace_x86-inl.inc",
>+        "internal/vdso_support.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:dynamic_annotations",
>+    ],
>+)
>+
>+cc_library(
>+    name = "demangle_internal",
>+    srcs = ["internal/demangle.cc"],
>+    hdrs = ["internal/demangle.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "demangle_test",
>+    srcs = ["internal/demangle_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":demangle_internal",
>+        ":stack_consumption",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "leak_check",
>+    srcs = select({
>+        # The leak checking interface depends on weak function
>+        # declarations that may not necessarily have definitions.
>+        # Windows doesn't support this, and ios requires
>+        # guaranteed definitions for weak symbols.
>+        "//absl:ios": [],
>+        "//absl:windows": [],
>+        "//conditions:default": [
>+            "leak_check.cc",
>+        ],
>+    }),
>+    hdrs = select({
>+        "//absl:ios": [],
>+        "//absl:windows": [],
>+        "//conditions:default": ["leak_check.h"],
>+    }),
>+    deps = ["//absl/base:core_headers"],
>+)
>+
>+# Adding a dependency to leak_check_disable will disable
>+# sanitizer leak checking (asan/lsan) in a test without
>+# the need to mess around with build features.
>+cc_library(
>+    name = "leak_check_disable",
>+    srcs = ["leak_check_disable.cc"],
>+    linkstatic = 1,
>+    alwayslink = 1,
>+)
>+
>+# These targets exists for use in tests only, explicitly configuring the
>+# LEAK_SANITIZER macro. It must be linked with -fsanitize=leak for lsan.
>+ABSL_LSAN_LINKOPTS = select({
>+    "//absl:llvm_compiler": ["-fsanitize=leak"],
>+    "//conditions:default": [],
>+})
>+
>+cc_library(
>+    name = "leak_check_api_enabled_for_testing",
>+    testonly = 1,
>+    srcs = ["leak_check.cc"],
>+    hdrs = ["leak_check.h"],
>+    copts = select({
>+        "//absl:llvm_compiler": ["-DLEAK_SANITIZER"],
>+        "//conditions:default": [],
>+    }),
>+    visibility = ["//visibility:private"],
>+)
>+
>+cc_library(
>+    name = "leak_check_api_disabled_for_testing",
>+    testonly = 1,
>+    srcs = ["leak_check.cc"],
>+    hdrs = ["leak_check.h"],
>+    copts = ["-ULEAK_SANITIZER"],
>+    visibility = ["//visibility:private"],
>+)
>+
>+cc_test(
>+    name = "leak_check_test",
>+    srcs = ["leak_check_test.cc"],
>+    copts = select({
>+        "//absl:llvm_compiler": ["-DABSL_EXPECT_LEAK_SANITIZER"],
>+        "//conditions:default": [],
>+    }),
>+    linkopts = ABSL_LSAN_LINKOPTS,
>+    deps = [
>+        ":leak_check_api_enabled_for_testing",
>+        "//absl/base",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "leak_check_no_lsan_test",
>+    srcs = ["leak_check_test.cc"],
>+    copts = ["-UABSL_EXPECT_LEAK_SANITIZER"],
>+    deps = [
>+        ":leak_check_api_disabled_for_testing",
>+        "//absl/base",  # for raw_logging
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+# Test that leak checking is skipped when lsan is enabled but
>+# ":leak_check_disable" is linked in.
>+#
>+# This test should fail in the absence of a dependency on ":leak_check_disable"
>+cc_test(
>+    name = "disabled_leak_check_test",
>+    srcs = ["leak_check_fail_test.cc"],
>+    linkopts = ABSL_LSAN_LINKOPTS,
>+    deps = [
>+        ":leak_check_api_enabled_for_testing",
>+        ":leak_check_disable",
>+        "//absl/base",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "stack_consumption",
>+    testonly = 1,
>+    srcs = ["internal/stack_consumption.cc"],
>+    hdrs = ["internal/stack_consumption.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "stack_consumption_test",
>+    srcs = ["internal/stack_consumption_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":stack_consumption",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..b50b0a6ddc8321968eb1fa176321bc8e1f974254
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/BUILD.gn
>@@ -0,0 +1,245 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+import("//build/config/sanitizers/sanitizers.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("stacktrace") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "stacktrace.cc",
>+  ]
>+  public = [
>+    "stacktrace.h",
>+  ]
>+  deps = [
>+    ":debugging_internal",
>+    "../base",
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("symbolize") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "symbolize.cc",
>+    "symbolize_elf.inc",
>+    "symbolize_unimplemented.inc",
>+    "symbolize_win32.inc",
>+  ]
>+  public = [
>+    "internal/symbolize.h",
>+    "symbolize.h",
>+  ]
>+  deps = [
>+    ":debugging_internal",
>+    ":demangle_internal",
>+    "../base",
>+    "../base:core_headers",
>+    "../base:malloc_internal",
>+  ]
>+}
>+
>+source_set("examine_stack") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/examine_stack.cc",
>+  ]
>+  public = [
>+    "internal/examine_stack.h",
>+  ]
>+  visibility = []
>+  visibility += [ ":*" ]
>+  deps = [
>+    ":stacktrace",
>+    ":symbolize",
>+    "../base",
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("failure_signal_handler") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "failure_signal_handler.cc"
>+  ]
>+  public = [
>+    "failure_signal_handler.h"
>+  ]
>+  deps = [
>+    ":examine_stack",
>+    ":stacktrace",
>+    "../base",
>+    "../base:config",
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("debugging_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/address_is_readable.cc",
>+    "internal/elf_mem_image.cc",
>+    "internal/vdso_support.cc",
>+  ]
>+  public = [
>+    "internal/address_is_readable.h",
>+    "internal/elf_mem_image.h",
>+    "internal/stacktrace_config.h",
>+    "internal/vdso_support.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:dynamic_annotations",
>+  ]
>+}
>+
>+source_set("demangle_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/demangle.cc",
>+  ]
>+  public = [
>+    "internal/demangle.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("leak_check") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  if (is_ios || is_win) {
>+    sources = []
>+    public = []
>+  } else {
>+    sources = [
>+      "leak_check.cc",
>+    ]
>+    public = [
>+      "leak_check.h",
>+    ]
>+  }
>+  deps = [
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("leak_check_disable") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "leak_check_disable.cc",
>+  ]
>+}
>+
>+if (is_lsan) {
>+  source_set("leak_check_api_enabled_for_testing") {
>+    testonly = true
>+    configs -= [ "//build/config/compiler:chromium_code" ]
>+    configs += [
>+      "//build/config/compiler:no_chromium_code",
>+      "//third_party/abseil-cpp:absl_default_cflags_cc",
>+    ]
>+    public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+    sources = [
>+      "leak_check.cc",
>+    ]
>+    public = [
>+      "leak_check.h",
>+    ]
>+    visibility = []
>+    visibility += [ ":*" ]
>+  }
>+} else {
>+  source_set("leak_check_api_disabled_for_testing") {
>+    testonly = true
>+    configs -= [ "//build/config/compiler:chromium_code" ]
>+    configs += [
>+      "//build/config/compiler:no_chromium_code",
>+      "//third_party/abseil-cpp:absl_default_cflags_cc",
>+    ]
>+    public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+    sources = [
>+      "leak_check.cc",
>+    ]
>+    public = [
>+      "leak_check.h",
>+    ]
>+    visibility = []
>+    visibility += [ ":*" ]
>+  }
>+}
>+
>+source_set("stack_consumption") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/stack_consumption.cc",
>+  ]
>+  public = [
>+    "internal/stack_consumption.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:core_headers",
>+  ]
>+  visibility = []
>+  visibility += [ ":*" ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..4af2ec8a41143cbb1181407f04ebb13547cf52e8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/CMakeLists.txt
>@@ -0,0 +1,217 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND DEBUGGING_PUBLIC_HEADERS
>+  "failure_signal_handler.h"
>+  "leak_check.h"
>+  "stacktrace.h"
>+  "symbolize.h"
>+)
>+
>+# TODO(cohenjon) The below is all kinds of wrong.  Make this match what we do in
>+# Bazel
>+list(APPEND DEBUGGING_INTERNAL_HEADERS
>+  "internal/address_is_readable.h"
>+  "internal/demangle.h"
>+  "internal/elf_mem_image.h"
>+  "internal/examine_stack.h"
>+  "internal/stacktrace_config.h"
>+  "internal/symbolize.h"
>+  "internal/vdso_support.h"
>+)
>+
>+list(APPEND DEBUGGING_INTERNAL_SRC
>+  "internal/address_is_readable.cc"
>+  "internal/elf_mem_image.cc"
>+  "internal/vdso_support.cc"
>+)
>+
>+
>+list(APPEND STACKTRACE_SRC
>+  "stacktrace.cc"
>+  ${DEBUGGING_INTERNAL_SRC}
>+  ${DEBUGGING_PUBLIC_HEADERS}
>+  ${DEBUGGING_INTERNAL_HEADERS}
>+)
>+
>+list(APPEND SYMBOLIZE_SRC
>+  "symbolize.cc"
>+  "symbolize_elf.inc"
>+  "symbolize_unimplemented.inc"
>+  "symbolize_win32.inc"
>+  "internal/demangle.cc"
>+  ${DEBUGGING_PUBLIC_HEADERS}
>+  ${DEBUGGING_INTERNAL_HEADERS}
>+  ${DEBUGGING_INTERNAL_SRC}
>+)
>+
>+list(APPEND FAILURE_SIGNAL_HANDLER_SRC
>+  "failure_signal_handler.cc"
>+  ${DEBUGGING_PUBLIC_HEADERS}
>+)
>+
>+list(APPEND EXAMINE_STACK_SRC
>+  "internal/examine_stack.cc"
>+  ${DEBUGGING_PUBLIC_HEADERS}
>+  ${DEBUGGING_INTERNAL_HEADERS}
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_stacktrace
>+  SOURCES
>+    ${STACKTRACE_SRC}
>+  EXPORT_NAME
>+    stacktrace
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_symbolize
>+  SOURCES
>+    ${SYMBOLIZE_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::base
>+    absl_malloc_internal
>+  EXPORT_NAME
>+    symbolize
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_failure_signal_handler
>+  SOURCES
>+    ${FAILURE_SIGNAL_HANDLER_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_base absl::examine_stack absl::stacktrace absl_synchronization
>+  EXPORT_NAME
>+    failure_signal_handler
>+)
>+
>+# Internal-only. Projects external to Abseil should not depend
>+# directly on this library.
>+absl_library(
>+  TARGET
>+    absl_examine_stack
>+  SOURCES
>+    ${EXAMINE_STACK_SRC}
>+  EXPORT_NAME
>+    examine_stack
>+)
>+
>+list(APPEND LEAK_CHECK_SRC
>+  "leak_check.cc"
>+)
>+
>+
>+# leak_check library
>+absl_library(
>+  TARGET
>+    absl_leak_check
>+  SOURCES
>+    ${LEAK_CHECK_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_base
>+  EXPORT_NAME
>+    leak_check
>+)
>+
>+
>+# component target
>+absl_header_library(
>+  TARGET
>+    absl_debugging
>+  PUBLIC_LIBRARIES
>+    absl_stacktrace absl_leak_check
>+  EXPORT_NAME
>+    debugging
>+)
>+
>+#
>+## TESTS
>+#
>+
>+list(APPEND STACK_CONSUMPTION_SRC
>+  "internal/stack_consumption.cc"
>+  "internal/stack_consumption.h"
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_stack_consumption
>+  SOURCES
>+    ${STACK_CONSUMPTION_SRC}
>+)
>+
>+absl_test(
>+  TARGET
>+    absl_stack_consumption_test
>+  SOURCES
>+    "internal/stack_consumption_test.cc"
>+  PUBLIC_LIBRARIES
>+    absl_stack_consumption
>+    absl::base
>+)
>+
>+list(APPEND DEMANGLE_TEST_SRC "internal/demangle_test.cc")
>+
>+absl_test(
>+  TARGET
>+    demangle_test
>+  SOURCES
>+    ${DEMANGLE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_symbolize absl_stack_consumption
>+)
>+
>+list(APPEND SYMBOLIZE_TEST_SRC "symbolize_test.cc")
>+
>+absl_test(
>+  TARGET
>+    symbolize_test
>+  SOURCES
>+    ${SYMBOLIZE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::base absl::memory absl_symbolize absl_stack_consumption
>+)
>+
>+list(APPEND FAILURE_SIGNAL_HANDLER_TEST_SRC "failure_signal_handler_test.cc")
>+
>+absl_test(
>+  TARGET
>+    failure_signal_handler_test
>+  SOURCES
>+    ${FAILURE_SIGNAL_HANDLER_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_examine_stack
>+    absl_failure_signal_handler
>+    absl_stacktrace
>+    absl_symbolize
>+    absl::base
>+    absl::strings
>+)
>+
>+# test leak_check_test
>+list(APPEND LEAK_CHECK_TEST_SRC "leak_check_test.cc")
>+
>+absl_test(
>+  TARGET
>+    leak_check_test
>+  SOURCES
>+    ${LEAK_CHECK_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl_leak_check
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d4b957bc2e418f4681cbf804a80a167792ee3db8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.cc
>@@ -0,0 +1,355 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#include "absl/debugging/failure_signal_handler.h"
>+
>+#include "absl/base/config.h"
>+
>+#ifdef _WIN32
>+#include <windows.h>
>+#else
>+#include <unistd.h>
>+#endif
>+
>+#ifdef ABSL_HAVE_MMAP
>+#include <sys/mman.h>
>+#endif
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cerrno>
>+#include <csignal>
>+#include <cstdio>
>+#include <cstring>
>+#include <ctime>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/sysinfo.h"
>+#include "absl/debugging/internal/examine_stack.h"
>+#include "absl/debugging/stacktrace.h"
>+
>+#ifndef _WIN32
>+#define ABSL_HAVE_SIGACTION
>+#endif
>+
>+namespace absl {
>+
>+ABSL_CONST_INIT static FailureSignalHandlerOptions fsh_options;
>+
>+// Resets the signal handler for signo to the default action for that
>+// signal, then raises the signal.
>+static void RaiseToDefaultHandler(int signo) {
>+  signal(signo, SIG_DFL);
>+  raise(signo);
>+}
>+
>+struct FailureSignalData {
>+  const int signo;
>+  const char* const as_string;
>+#ifdef ABSL_HAVE_SIGACTION
>+  struct sigaction previous_action;
>+  // StructSigaction is used to silence -Wmissing-field-initializers.
>+  using StructSigaction = struct sigaction;
>+  #define FSD_PREVIOUS_INIT FailureSignalData::StructSigaction()
>+#else
>+  void (*previous_handler)(int);
>+  #define FSD_PREVIOUS_INIT SIG_DFL
>+#endif
>+};
>+
>+ABSL_CONST_INIT static FailureSignalData failure_signal_data[] = {
>+    {SIGSEGV, "SIGSEGV", FSD_PREVIOUS_INIT},
>+    {SIGILL, "SIGILL", FSD_PREVIOUS_INIT},
>+    {SIGFPE, "SIGFPE", FSD_PREVIOUS_INIT},
>+    {SIGABRT, "SIGABRT", FSD_PREVIOUS_INIT},
>+    {SIGTERM, "SIGTERM", FSD_PREVIOUS_INIT},
>+#ifndef _WIN32
>+    {SIGBUS, "SIGBUS", FSD_PREVIOUS_INIT},
>+    {SIGTRAP, "SIGTRAP", FSD_PREVIOUS_INIT},
>+#endif
>+};
>+
>+#undef FSD_PREVIOUS_INIT
>+
>+static void RaiseToPreviousHandler(int signo) {
>+  // Search for the previous handler.
>+  for (const auto& it : failure_signal_data) {
>+    if (it.signo == signo) {
>+#ifdef ABSL_HAVE_SIGACTION
>+      sigaction(signo, &it.previous_action, nullptr);
>+#else
>+      signal(signo, it.previous_handler);
>+#endif
>+      raise(signo);
>+      return;
>+    }
>+  }
>+
>+  // Not found, use the default handler.
>+  RaiseToDefaultHandler(signo);
>+}
>+
>+namespace debugging_internal {
>+
>+const char* FailureSignalToString(int signo) {
>+  for (const auto& it : failure_signal_data) {
>+    if (it.signo == signo) {
>+      return it.as_string;
>+    }
>+  }
>+  return "";
>+}
>+
>+}  // namespace debugging_internal
>+
>+#ifndef _WIN32
>+
>+static bool SetupAlternateStackOnce() {
>+  const size_t page_mask = getpagesize() - 1;
>+  size_t stack_size = (std::max(SIGSTKSZ, 65536) + page_mask) & ~page_mask;
>+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
>+    defined(THREAD_SANITIZER)
>+  // Account for sanitizer instrumentation requiring additional stack space.
>+  stack_size *= 5;
>+#endif
>+
>+  stack_t sigstk;
>+  memset(&sigstk, 0, sizeof(sigstk));
>+  sigstk.ss_size = stack_size;
>+
>+#ifdef ABSL_HAVE_MMAP
>+#ifndef MAP_STACK
>+#define MAP_STACK 0
>+#endif
>+#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
>+#define MAP_ANONYMOUS MAP_ANON
>+#endif
>+  sigstk.ss_sp = mmap(nullptr, sigstk.ss_size, PROT_READ | PROT_WRITE,
>+                      MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
>+  if (sigstk.ss_sp == MAP_FAILED) {
>+    ABSL_RAW_LOG(FATAL, "mmap() for alternate signal stack failed");
>+  }
>+#else
>+  sigstk.ss_sp = malloc(sigstk.ss_size);
>+  if (sigstk.ss_sp == nullptr) {
>+    ABSL_RAW_LOG(FATAL, "malloc() for alternate signal stack failed");
>+  }
>+#endif
>+
>+  if (sigaltstack(&sigstk, nullptr) != 0) {
>+    ABSL_RAW_LOG(FATAL, "sigaltstack() failed with errno=%d", errno);
>+  }
>+  return true;
>+}
>+
>+#endif
>+
>+#ifdef ABSL_HAVE_SIGACTION
>+
>+// Sets up an alternate stack for signal handlers once.
>+// Returns the appropriate flag for sig_action.sa_flags
>+// if the system supports using an alternate stack.
>+static int MaybeSetupAlternateStack() {
>+#ifndef _WIN32
>+  ABSL_ATTRIBUTE_UNUSED static const bool kOnce = SetupAlternateStackOnce();
>+  return SA_ONSTACK;
>+#else
>+  return 0;
>+#endif
>+}
>+
>+static void InstallOneFailureHandler(FailureSignalData* data,
>+                                     void (*handler)(int, siginfo_t*, void*)) {
>+  struct sigaction act;
>+  memset(&act, 0, sizeof(act));
>+  sigemptyset(&act.sa_mask);
>+  act.sa_flags |= SA_SIGINFO;
>+  // SA_NODEFER is required to handle SIGABRT from
>+  // ImmediateAbortSignalHandler().
>+  act.sa_flags |= SA_NODEFER;
>+  if (fsh_options.use_alternate_stack) {
>+    act.sa_flags |= MaybeSetupAlternateStack();
>+  }
>+  act.sa_sigaction = handler;
>+  ABSL_RAW_CHECK(sigaction(data->signo, &act, &data->previous_action) == 0,
>+                 "sigaction() failed");
>+}
>+
>+#else
>+
>+static void InstallOneFailureHandler(FailureSignalData* data,
>+                                     void (*handler)(int)) {
>+  data->previous_handler = signal(data->signo, handler);
>+  ABSL_RAW_CHECK(data->previous_handler != SIG_ERR, "signal() failed");
>+}
>+
>+#endif
>+
>+static void WriteToStderr(const char* data) {
>+  int old_errno = errno;
>+  absl::raw_logging_internal::SafeWriteToStderr(data, strlen(data));
>+  errno = old_errno;
>+}
>+
>+static void WriteSignalMessage(int signo, void (*writerfn)(const char*)) {
>+  char buf[64];
>+  const char* const signal_string =
>+      debugging_internal::FailureSignalToString(signo);
>+  if (signal_string != nullptr && signal_string[0] != '\0') {
>+    snprintf(buf, sizeof(buf), "*** %s received at time=%ld ***\n",
>+             signal_string,
>+             static_cast<long>(time(nullptr)));  // NOLINT(runtime/int)
>+  } else {
>+    snprintf(buf, sizeof(buf), "*** Signal %d received at time=%ld ***\n",
>+             signo, static_cast<long>(time(nullptr)));  // NOLINT(runtime/int)
>+  }
>+  writerfn(buf);
>+}
>+
>+// `void*` might not be big enough to store `void(*)(const char*)`.
>+struct WriterFnStruct {
>+  void (*writerfn)(const char*);
>+};
>+
>+// Many of the absl::debugging_internal::Dump* functions in
>+// examine_stack.h take a writer function pointer that has a void* arg
>+// for historical reasons. failure_signal_handler_writer only takes a
>+// data pointer. This function converts between these types.
>+static void WriterFnWrapper(const char* data, void* arg) {
>+  static_cast<WriterFnStruct*>(arg)->writerfn(data);
>+}
>+
>+// Convenient wrapper around DumpPCAndFrameSizesAndStackTrace() for signal
>+// handlers. "noinline" so that GetStackFrames() skips the top-most stack
>+// frame for this function.
>+ABSL_ATTRIBUTE_NOINLINE static void WriteStackTrace(
>+    void* ucontext, bool symbolize_stacktrace,
>+    void (*writerfn)(const char*, void*), void* writerfn_arg) {
>+  constexpr int kNumStackFrames = 32;
>+  void* stack[kNumStackFrames];
>+  int frame_sizes[kNumStackFrames];
>+  int min_dropped_frames;
>+  int depth = absl::GetStackFramesWithContext(
>+      stack, frame_sizes, kNumStackFrames,
>+      1,  // Do not include this function in stack trace.
>+      ucontext, &min_dropped_frames);
>+  absl::debugging_internal::DumpPCAndFrameSizesAndStackTrace(
>+      absl::debugging_internal::GetProgramCounter(ucontext), stack, frame_sizes,
>+      depth, min_dropped_frames, symbolize_stacktrace, writerfn, writerfn_arg);
>+}
>+
>+// Called by AbslFailureSignalHandler() to write the failure info. It is
>+// called once with writerfn set to WriteToStderr() and then possibly
>+// with writerfn set to the user provided function.
>+static void WriteFailureInfo(int signo, void* ucontext,
>+                             void (*writerfn)(const char*)) {
>+  WriterFnStruct writerfn_struct{writerfn};
>+  WriteSignalMessage(signo, writerfn);
>+  WriteStackTrace(ucontext, fsh_options.symbolize_stacktrace, WriterFnWrapper,
>+                  &writerfn_struct);
>+}
>+
>+// absl::SleepFor() can't be used here since AbslInternalSleepFor()
>+// may be overridden to do something that isn't async-signal-safe on
>+// some platforms.
>+static void PortableSleepForSeconds(int seconds) {
>+#ifdef _WIN32
>+  Sleep(seconds * 1000);
>+#else
>+  struct timespec sleep_time;
>+  sleep_time.tv_sec = seconds;
>+  sleep_time.tv_nsec = 0;
>+  while (nanosleep(&sleep_time, &sleep_time) != 0 && errno == EINTR) {}
>+#endif
>+}
>+
>+#ifdef ABSL_HAVE_ALARM
>+// AbslFailureSignalHandler() installs this as a signal handler for
>+// SIGALRM, then sets an alarm to be delivered to the program after a
>+// set amount of time. If AbslFailureSignalHandler() hangs for more than
>+// the alarm timeout, ImmediateAbortSignalHandler() will abort the
>+// program.
>+static void ImmediateAbortSignalHandler(int) {
>+  RaiseToDefaultHandler(SIGABRT);
>+}
>+#endif
>+
>+// absl::base_internal::GetTID() returns pid_t on most platforms, but
>+// returns absl::base_internal::pid_t on Windows.
>+using GetTidType = decltype(absl::base_internal::GetTID());
>+ABSL_CONST_INIT static std::atomic<GetTidType> failed_tid(0);
>+
>+#ifndef ABSL_HAVE_SIGACTION
>+static void AbslFailureSignalHandler(int signo) {
>+  void* ucontext = nullptr;
>+#else
>+static void AbslFailureSignalHandler(int signo, siginfo_t*, void* ucontext) {
>+#endif
>+
>+  const GetTidType this_tid = absl::base_internal::GetTID();
>+  GetTidType previous_failed_tid = 0;
>+  if (!failed_tid.compare_exchange_strong(
>+          previous_failed_tid, static_cast<intptr_t>(this_tid),
>+          std::memory_order_acq_rel, std::memory_order_relaxed)) {
>+    ABSL_RAW_LOG(
>+        ERROR,
>+        "Signal %d raised at PC=%p while already in AbslFailureSignalHandler()",
>+        signo, absl::debugging_internal::GetProgramCounter(ucontext));
>+    if (this_tid != previous_failed_tid) {
>+      // Another thread is already in AbslFailureSignalHandler(), so wait
>+      // a bit for it to finish. If the other thread doesn't kill us,
>+      // we do so after sleeping.
>+      PortableSleepForSeconds(3);
>+      RaiseToDefaultHandler(signo);
>+      // The recursively raised signal may be blocked until we return.
>+      return;
>+    }
>+  }
>+
>+#ifdef ABSL_HAVE_ALARM
>+  // Set an alarm to abort the program in case this code hangs or deadlocks.
>+  if (fsh_options.alarm_on_failure_secs > 0) {
>+    alarm(0);  // Cancel any existing alarms.
>+    signal(SIGALRM, ImmediateAbortSignalHandler);
>+    alarm(fsh_options.alarm_on_failure_secs);
>+  }
>+#endif
>+
>+  // First write to stderr.
>+  WriteFailureInfo(signo, ucontext, WriteToStderr);
>+
>+  // Riskier code (because it is less likely to be async-signal-safe)
>+  // goes after this point.
>+  if (fsh_options.writerfn != nullptr) {
>+    WriteFailureInfo(signo, ucontext, fsh_options.writerfn);
>+  }
>+
>+  if (fsh_options.call_previous_handler) {
>+    RaiseToPreviousHandler(signo);
>+  } else {
>+    RaiseToDefaultHandler(signo);
>+  }
>+}
>+
>+void InstallFailureSignalHandler(const FailureSignalHandlerOptions& options) {
>+  fsh_options = options;
>+  for (auto& it : failure_signal_data) {
>+    InstallOneFailureHandler(&it, AbslFailureSignalHandler);
>+  }
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c57954e5875cac4d8971d90600fb8cc60130d8eb
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler.h
>@@ -0,0 +1,117 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: failure_signal_handler.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file configures the Abseil *failure signal handler* to capture and dump
>+// useful debugging information (such as a stacktrace) upon program failure.
>+//
>+// To use the failure signal handler, call `absl::InstallFailureSignalHandler()`
>+// very early in your program, usually in the first few lines of main():
>+//
>+// int main(int argc, char** argv) {
>+//   // Initialize the symbolizer to get a human-readable stack trace
>+//   absl::InitializeSymbolizer(argv[0]);
>+//
>+//   absl::FailureSignalHandlerOptions options;
>+//   absl::InstallFailureSignalHandler(options);
>+//   DoSomethingInteresting();
>+//   return 0;
>+// }
>+//
>+// Any program that raises a fatal signal (such as `SIGSEGV`, `SIGILL`,
>+// `SIGFPE`, `SIGABRT`, `SIGTERM`, `SIGBUG`, and `SIGTRAP`) will call the
>+// installed failure signal handler and provide debugging information to stderr.
>+//
>+// Note that you should *not* install the Abseil failure signal handler more
>+// than once. You may, of course, have another (non-Abseil) failure signal
>+// handler installed (which would be triggered if Abseil's failure signal
>+// handler sets `call_previous_handler` to `true`).
>+
>+#ifndef ABSL_DEBUGGING_FAILURE_SIGNAL_HANDLER_H_
>+#define ABSL_DEBUGGING_FAILURE_SIGNAL_HANDLER_H_
>+
>+namespace absl {
>+
>+// FailureSignalHandlerOptions
>+//
>+// Struct for holding `absl::InstallFailureSignalHandler()` configuration
>+// options.
>+struct FailureSignalHandlerOptions {
>+  // If true, try to symbolize the stacktrace emitted on failure, provided that
>+  // you have initialized a symbolizer for that purpose. (See symbolize.h for
>+  // more information.)
>+  bool symbolize_stacktrace = true;
>+
>+  // If true, try to run signal handlers on an alternate stack (if supported on
>+  // the given platform). An alternate stack is useful for program crashes due
>+  // to a stack overflow; by running on a alternate stack, the signal handler
>+  // may run even when normal stack space has been exausted. The downside of
>+  // using an alternate stack is that extra memory for the alternate stack needs
>+  // to be pre-allocated.
>+  bool use_alternate_stack = true;
>+
>+  // If positive, indicates the number of seconds after which the failure signal
>+  // handler is invoked to abort the program. Setting such an alarm is useful in
>+  // cases where the failure signal handler itself may become hung or
>+  // deadlocked.
>+  int alarm_on_failure_secs = 3;
>+
>+  // If true, call the previously registered signal handler for the signal that
>+  // was received (if one was registered) after the existing signal handler
>+  // runs. This mechanism can be used to chain signal handlers together.
>+  //
>+  // If false, the signal is raised to the default handler for that signal
>+  // (which normally terminates the program).
>+  //
>+  // IMPORTANT: If true, the chained fatal signal handlers must not try to
>+  // recover from the fatal signal. Instead, they should terminate the program
>+  // via some mechanism, like raising the default handler for the signal, or by
>+  // calling `_exit()`. Note that the failure signal handler may put parts of
>+  // the Abseil library into a state from which they cannot recover.
>+  bool call_previous_handler = false;
>+
>+  // If non-null, indicates a pointer to a callback function that will be called
>+  // upon failure, with a std::string argument containing failure data. This function
>+  // may be used as a hook to write failure data to a secondary location, such
>+  // as a log file. This function may also be called with null data, as a hint
>+  // to flush any buffered data before the program may be terminated. Consider
>+  // flushing any buffered data in all calls to this function.
>+  //
>+  // Since this function runs within a signal handler, it should be
>+  // async-signal-safe if possible.
>+  // See http://man7.org/linux/man-pages/man7/signal-safety.7.html
>+  void (*writerfn)(const char*) = nullptr;
>+};
>+
>+// InstallFailureSignalHandler()
>+//
>+// Installs a signal handler for the common failure signals `SIGSEGV`, `SIGILL`,
>+// `SIGFPE`, `SIGABRT`, `SIGTERM`, `SIGBUG`, and `SIGTRAP` (provided they exist
>+// on the given platform). The failure signal handler dumps program failure data
>+// useful for debugging in an unspecified format to stderr. This data may
>+// include the program counter, a stacktrace, and register information on some
>+// systems; do not rely on an exact format for the output, as it is subject to
>+// change.
>+void InstallFailureSignalHandler(const FailureSignalHandlerOptions& options);
>+
>+namespace debugging_internal {
>+const char* FailureSignalToString(int signo);
>+}  // namespace debugging_internal
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_FAILURE_SIGNAL_HANDLER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ba520910f47f217f28dc48d42bc2535c263ef03d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/failure_signal_handler_test.cc
>@@ -0,0 +1,155 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#include "absl/debugging/failure_signal_handler.h"
>+
>+#include <csignal>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+#include <fstream>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/debugging/stacktrace.h"
>+#include "absl/debugging/symbolize.h"
>+#include "absl/strings/match.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+#if GTEST_HAS_DEATH_TEST
>+
>+// For the parameterized death tests. GetParam() returns the signal number.
>+using FailureSignalHandlerDeathTest = ::testing::TestWithParam<int>;
>+
>+// This function runs in a fork()ed process on most systems.
>+void InstallHandlerAndRaise(int signo) {
>+  absl::InstallFailureSignalHandler(absl::FailureSignalHandlerOptions());
>+  raise(signo);
>+}
>+
>+TEST_P(FailureSignalHandlerDeathTest, AbslFailureSignal) {
>+  const int signo = GetParam();
>+  std::string exit_regex = absl::StrCat(
>+      "\\*\\*\\* ", absl::debugging_internal::FailureSignalToString(signo),
>+      " received at time=");
>+#ifndef _WIN32
>+  EXPECT_EXIT(InstallHandlerAndRaise(signo), testing::KilledBySignal(signo),
>+              exit_regex);
>+#else
>+  // Windows doesn't have testing::KilledBySignal().
>+  EXPECT_DEATH(InstallHandlerAndRaise(signo), exit_regex);
>+#endif
>+}
>+
>+ABSL_CONST_INIT FILE* error_file = nullptr;
>+
>+void WriteToErrorFile(const char* msg) {
>+  if (msg != nullptr) {
>+    ABSL_RAW_CHECK(fwrite(msg, strlen(msg), 1, error_file) == 1,
>+                   "fwrite() failed");
>+  }
>+  ABSL_RAW_CHECK(fflush(error_file) == 0, "fflush() failed");
>+}
>+
>+std::string GetTmpDir() {
>+  // TEST_TMPDIR is set by Bazel. Try the others when not running under Bazel.
>+  static const char* const kTmpEnvVars[] = {"TEST_TMPDIR", "TMPDIR", "TEMP",
>+                                            "TEMPDIR", "TMP"};
>+  for (const char* const var : kTmpEnvVars) {
>+    const char* tmp_dir = std::getenv(var);
>+    if (tmp_dir != nullptr) {
>+      return tmp_dir;
>+    }
>+  }
>+
>+  // Try something reasonable.
>+  return "/tmp";
>+}
>+
>+// This function runs in a fork()ed process on most systems.
>+void InstallHandlerWithWriteToFileAndRaise(const char* file, int signo) {
>+  error_file = fopen(file, "w");
>+  ABSL_RAW_CHECK(error_file != nullptr, "Failed create error_file");
>+  absl::FailureSignalHandlerOptions options;
>+  options.writerfn = WriteToErrorFile;
>+  absl::InstallFailureSignalHandler(options);
>+  raise(signo);
>+}
>+
>+TEST_P(FailureSignalHandlerDeathTest, AbslFatalSignalsWithWriterFn) {
>+  const int signo = GetParam();
>+  std::string tmp_dir = GetTmpDir();
>+  std::string file = absl::StrCat(tmp_dir, "/signo_", signo);
>+
>+  std::string exit_regex = absl::StrCat(
>+      "\\*\\*\\* ", absl::debugging_internal::FailureSignalToString(signo),
>+      " received at time=");
>+#ifndef _WIN32
>+  EXPECT_EXIT(InstallHandlerWithWriteToFileAndRaise(file.c_str(), signo),
>+              testing::KilledBySignal(signo), exit_regex);
>+#else
>+  // Windows doesn't have testing::KilledBySignal().
>+  EXPECT_DEATH(InstallHandlerWithWriteToFileAndRaise(file.c_str(), signo),
>+               exit_regex);
>+#endif
>+
>+  // Open the file in this process and check its contents.
>+  std::fstream error_output(file);
>+  ASSERT_TRUE(error_output.is_open()) << file;
>+  std::string error_line;
>+  std::getline(error_output, error_line);
>+  EXPECT_TRUE(absl::StartsWith(
>+      error_line,
>+      absl::StrCat("*** ",
>+                   absl::debugging_internal::FailureSignalToString(signo),
>+                   " received at ")));
>+
>+  if (absl::debugging_internal::StackTraceWorksForTest()) {
>+    std::getline(error_output, error_line);
>+    EXPECT_TRUE(absl::StartsWith(error_line, "PC: "));
>+  }
>+}
>+
>+constexpr int kFailureSignals[] = {
>+    SIGSEGV, SIGILL,  SIGFPE, SIGABRT, SIGTERM,
>+#ifndef _WIN32
>+    SIGBUS,  SIGTRAP,
>+#endif
>+};
>+
>+std::string SignalParamToString(const ::testing::TestParamInfo<int>& info) {
>+  std::string result = absl::debugging_internal::FailureSignalToString(info.param);
>+  if (result.empty()) {
>+    result = absl::StrCat(info.param);
>+  }
>+  return result;
>+}
>+
>+INSTANTIATE_TEST_CASE_P(AbslDeathTest, FailureSignalHandlerDeathTest,
>+                        ::testing::ValuesIn(kFailureSignals),
>+                        SignalParamToString);
>+
>+#endif  // GTEST_HAS_DEATH_TEST
>+
>+}  // namespace
>+
>+int main(int argc, char** argv) {
>+  absl::InitializeSymbolizer(argv[0]);
>+  testing::InitGoogleTest(&argc, argv);
>+  return RUN_ALL_TESTS();
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7455aa0b416456e04b7e388520cd00d084007788
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.cc
>@@ -0,0 +1,133 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// base::AddressIsReadable() probes an address to see whether it is readable,
>+// without faulting.
>+
>+#include "absl/debugging/internal/address_is_readable.h"
>+
>+#if !defined(__linux__) || defined(__ANDROID__)
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// On platforms other than Linux, just return true.
>+bool AddressIsReadable(const void* /* addr */) { return true; }
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#else
>+
>+#include <fcntl.h>
>+#include <sys/syscall.h>
>+#include <unistd.h>
>+#include <atomic>
>+#include <cerrno>
>+#include <cstdint>
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Pack a pid and two file descriptors into a 64-bit word,
>+// using 16, 24, and 24 bits for each respectively.
>+static uint64_t Pack(uint64_t pid, uint64_t read_fd, uint64_t write_fd) {
>+  ABSL_RAW_CHECK((read_fd >> 24) == 0 && (write_fd >> 24) == 0,
>+                 "fd out of range");
>+  return (pid << 48) | ((read_fd & 0xffffff) << 24) | (write_fd & 0xffffff);
>+}
>+
>+// Unpack x into a pid and two file descriptors, where x was created with
>+// Pack().
>+static void Unpack(uint64_t x, int *pid, int *read_fd, int *write_fd) {
>+  *pid = x >> 48;
>+  *read_fd = (x >> 24) & 0xffffff;
>+  *write_fd = x & 0xffffff;
>+}
>+
>+// Return whether the byte at *addr is readable, without faulting.
>+// Save and restores errno.   Returns true on systems where
>+// unimplemented.
>+// This is a namespace-scoped variable for correct zero-initialization.
>+static std::atomic<uint64_t> pid_and_fds;  // initially 0, an invalid pid.
>+bool AddressIsReadable(const void *addr) {
>+  int save_errno = errno;
>+  // We test whether a byte is readable by using write().  Normally, this would
>+  // be done via a cached file descriptor to /dev/null, but linux fails to
>+  // check whether the byte is readable when the destination is /dev/null, so
>+  // we use a cached pipe.  We store the pid of the process that created the
>+  // pipe to handle the case where a process forks, and the child closes all
>+  // the file descriptors and then calls this routine.  This is not perfect:
>+  // the child could use the routine, then close all file descriptors and then
>+  // use this routine again.  But the likely use of this routine is when
>+  // crashing, to test the validity of pages when dumping the stack.  Beware
>+  // that we may leak file descriptors, but we're unlikely to leak many.
>+  int bytes_written;
>+  int current_pid = getpid() & 0xffff;   // we use only the low order 16 bits
>+  do {  // until we do not get EBADF trying to use file descriptors
>+    int pid;
>+    int read_fd;
>+    int write_fd;
>+    uint64_t local_pid_and_fds = pid_and_fds.load(std::memory_order_relaxed);
>+    Unpack(local_pid_and_fds, &pid, &read_fd, &write_fd);
>+    while (current_pid != pid) {
>+      int p[2];
>+      // new pipe
>+      if (pipe(p) != 0) {
>+        ABSL_RAW_LOG(FATAL, "Failed to create pipe, errno=%d", errno);
>+      }
>+      fcntl(p[0], F_SETFD, FD_CLOEXEC);
>+      fcntl(p[1], F_SETFD, FD_CLOEXEC);
>+      uint64_t new_pid_and_fds = Pack(current_pid, p[0], p[1]);
>+      if (pid_and_fds.compare_exchange_strong(
>+              local_pid_and_fds, new_pid_and_fds, std::memory_order_relaxed,
>+              std::memory_order_relaxed)) {
>+        local_pid_and_fds = new_pid_and_fds;  // fds exposed to other threads
>+      } else {  // fds not exposed to other threads; we can close them.
>+        close(p[0]);
>+        close(p[1]);
>+        local_pid_and_fds = pid_and_fds.load(std::memory_order_relaxed);
>+      }
>+      Unpack(local_pid_and_fds, &pid, &read_fd, &write_fd);
>+    }
>+    errno = 0;
>+    // Use syscall(SYS_write, ...) instead of write() to prevent ASAN
>+    // and other checkers from complaining about accesses to arbitrary
>+    // memory.
>+    do {
>+      bytes_written = syscall(SYS_write, write_fd, addr, 1);
>+    } while (bytes_written == -1 && errno == EINTR);
>+    if (bytes_written == 1) {   // remove the byte from the pipe
>+      char c;
>+      while (read(read_fd, &c, 1) == -1 && errno == EINTR) {
>+      }
>+    }
>+    if (errno == EBADF) {  // Descriptors invalid.
>+      // If pid_and_fds contains the problematic file descriptors we just used,
>+      // this call will forget them, and the loop will try again.
>+      pid_and_fds.compare_exchange_strong(local_pid_and_fds, 0,
>+                                          std::memory_order_relaxed,
>+                                          std::memory_order_relaxed);
>+    }
>+  } while (errno == EBADF);
>+  errno = save_errno;
>+  return bytes_written == 1;
>+}
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..9d48030065c8113b417e94a7989969c3c6ee7d49
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/address_is_readable.h
>@@ -0,0 +1,29 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_
>+#define ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Return whether the byte at *addr is readable, without faulting.
>+// Save and restores errno.
>+bool AddressIsReadable(const void *addr);
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_ADDRESS_IS_READABLE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c9ca2f3bdb170e77d28dec15795ba58829fb868a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.cc
>@@ -0,0 +1,1862 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// For reference check out:
>+// https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
>+//
>+// Note that we only have partial C++11 support yet.
>+
>+#include "absl/debugging/internal/demangle.h"
>+
>+#include <cstdint>
>+#include <cstdio>
>+#include <limits>
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+typedef struct {
>+  const char *abbrev;
>+  const char *real_name;
>+  // Number of arguments in <expression> context, or 0 if disallowed.
>+  int arity;
>+} AbbrevPair;
>+
>+// List of operators from Itanium C++ ABI.
>+static const AbbrevPair kOperatorList[] = {
>+    // New has special syntax (not currently supported).
>+    {"nw", "new", 0},
>+    {"na", "new[]", 0},
>+
>+    // Works except that the 'gs' prefix is not supported.
>+    {"dl", "delete", 1},
>+    {"da", "delete[]", 1},
>+
>+    {"ps", "+", 1},  // "positive"
>+    {"ng", "-", 1},  // "negative"
>+    {"ad", "&", 1},  // "address-of"
>+    {"de", "*", 1},  // "dereference"
>+    {"co", "~", 1},
>+
>+    {"pl", "+", 2},
>+    {"mi", "-", 2},
>+    {"ml", "*", 2},
>+    {"dv", "/", 2},
>+    {"rm", "%", 2},
>+    {"an", "&", 2},
>+    {"or", "|", 2},
>+    {"eo", "^", 2},
>+    {"aS", "=", 2},
>+    {"pL", "+=", 2},
>+    {"mI", "-=", 2},
>+    {"mL", "*=", 2},
>+    {"dV", "/=", 2},
>+    {"rM", "%=", 2},
>+    {"aN", "&=", 2},
>+    {"oR", "|=", 2},
>+    {"eO", "^=", 2},
>+    {"ls", "<<", 2},
>+    {"rs", ">>", 2},
>+    {"lS", "<<=", 2},
>+    {"rS", ">>=", 2},
>+    {"eq", "==", 2},
>+    {"ne", "!=", 2},
>+    {"lt", "<", 2},
>+    {"gt", ">", 2},
>+    {"le", "<=", 2},
>+    {"ge", ">=", 2},
>+    {"nt", "!", 1},
>+    {"aa", "&&", 2},
>+    {"oo", "||", 2},
>+    {"pp", "++", 1},
>+    {"mm", "--", 1},
>+    {"cm", ",", 2},
>+    {"pm", "->*", 2},
>+    {"pt", "->", 0},  // Special syntax
>+    {"cl", "()", 0},  // Special syntax
>+    {"ix", "[]", 2},
>+    {"qu", "?", 3},
>+    {"st", "sizeof", 0},  // Special syntax
>+    {"sz", "sizeof", 1},  // Not a real operator name, but used in expressions.
>+    {nullptr, nullptr, 0},
>+};
>+
>+// List of builtin types from Itanium C++ ABI.
>+static const AbbrevPair kBuiltinTypeList[] = {
>+    {"v", "void", 0},
>+    {"w", "wchar_t", 0},
>+    {"b", "bool", 0},
>+    {"c", "char", 0},
>+    {"a", "signed char", 0},
>+    {"h", "unsigned char", 0},
>+    {"s", "short", 0},
>+    {"t", "unsigned short", 0},
>+    {"i", "int", 0},
>+    {"j", "unsigned int", 0},
>+    {"l", "long", 0},
>+    {"m", "unsigned long", 0},
>+    {"x", "long long", 0},
>+    {"y", "unsigned long long", 0},
>+    {"n", "__int128", 0},
>+    {"o", "unsigned __int128", 0},
>+    {"f", "float", 0},
>+    {"d", "double", 0},
>+    {"e", "long double", 0},
>+    {"g", "__float128", 0},
>+    {"z", "ellipsis", 0},
>+    {nullptr, nullptr, 0},
>+};
>+
>+// List of substitutions Itanium C++ ABI.
>+static const AbbrevPair kSubstitutionList[] = {
>+    {"St", "", 0},
>+    {"Sa", "allocator", 0},
>+    {"Sb", "basic_string", 0},
>+    // std::basic_string<char, std::char_traits<char>,std::allocator<char> >
>+    {"Ss", "string", 0},
>+    // std::basic_istream<char, std::char_traits<char> >
>+    {"Si", "istream", 0},
>+    // std::basic_ostream<char, std::char_traits<char> >
>+    {"So", "ostream", 0},
>+    // std::basic_iostream<char, std::char_traits<char> >
>+    {"Sd", "iostream", 0},
>+    {nullptr, nullptr, 0},
>+};
>+
>+// State needed for demangling.  This struct is copied in almost every stack
>+// frame, so every byte counts.
>+typedef struct {
>+  int mangled_idx;                   // Cursor of mangled name.
>+  int out_cur_idx;                   // Cursor of output std::string.
>+  int prev_name_idx;                 // For constructors/destructors.
>+  signed int prev_name_length : 16;  // For constructors/destructors.
>+  signed int nest_level : 15;        // For nested names.
>+  unsigned int append : 1;           // Append flag.
>+  // Note: for some reason MSVC can't pack "bool append : 1" into the same int
>+  // with the above two fields, so we use an int instead.  Amusingly it can pack
>+  // "signed bool" as expected, but relying on that to continue to be a legal
>+  // type seems ill-advised (as it's illegal in at least clang).
>+} ParseState;
>+
>+static_assert(sizeof(ParseState) == 4 * sizeof(int),
>+              "unexpected size of ParseState");
>+
>+// One-off state for demangling that's not subject to backtracking -- either
>+// constant data, data that's intentionally immune to backtracking (steps), or
>+// data that would never be changed by backtracking anyway (recursion_depth).
>+//
>+// Only one copy of this exists for each call to Demangle, so the size of this
>+// struct is nearly inconsequential.
>+typedef struct {
>+  const char *mangled_begin;  // Beginning of input std::string.
>+  char *out;                  // Beginning of output std::string.
>+  int out_end_idx;            // One past last allowed output character.
>+  int recursion_depth;        // For stack exhaustion prevention.
>+  int steps;               // Cap how much work we'll do, regardless of depth.
>+  ParseState parse_state;  // Backtrackable state copied for most frames.
>+} State;
>+
>+namespace {
>+// Prevent deep recursion / stack exhaustion.
>+// Also prevent unbounded handling of complex inputs.
>+class ComplexityGuard {
>+ public:
>+  explicit ComplexityGuard(State *state) : state_(state) {
>+    ++state->recursion_depth;
>+    ++state->steps;
>+  }
>+  ~ComplexityGuard() { --state_->recursion_depth; }
>+
>+  // 256 levels of recursion seems like a reasonable upper limit on depth.
>+  // 128 is not enough to demagle synthetic tests from demangle_unittest.txt:
>+  // "_ZaaZZZZ..." and "_ZaaZcvZcvZ..."
>+  static constexpr int kRecursionDepthLimit = 256;
>+
>+  // We're trying to pick a charitable upper-limit on how many parse steps are
>+  // necessary to handle something that a human could actually make use of.
>+  // This is mostly in place as a bound on how much work we'll do if we are
>+  // asked to demangle an mangled name from an untrusted source, so it should be
>+  // much larger than the largest expected symbol, but much smaller than the
>+  // amount of work we can do in, e.g., a second.
>+  //
>+  // Some real-world symbols from an arbitrary binary started failing between
>+  // 2^12 and 2^13, so we multiply the latter by an extra factor of 16 to set
>+  // the limit.
>+  //
>+  // Spending one second on 2^17 parse steps would require each step to take
>+  // 7.6us, or ~30000 clock cycles, so it's safe to say this can be done in
>+  // under a second.
>+  static constexpr int kParseStepsLimit = 1 << 17;
>+
>+  bool IsTooComplex() const {
>+    return state_->recursion_depth > kRecursionDepthLimit ||
>+           state_->steps > kParseStepsLimit;
>+  }
>+
>+ private:
>+  State *state_;
>+};
>+}  // namespace
>+
>+// We don't use strlen() in libc since it's not guaranteed to be async
>+// signal safe.
>+static size_t StrLen(const char *str) {
>+  size_t len = 0;
>+  while (*str != '\0') {
>+    ++str;
>+    ++len;
>+  }
>+  return len;
>+}
>+
>+// Returns true if "str" has at least "n" characters remaining.
>+static bool AtLeastNumCharsRemaining(const char *str, int n) {
>+  for (int i = 0; i < n; ++i) {
>+    if (str[i] == '\0') {
>+      return false;
>+    }
>+  }
>+  return true;
>+}
>+
>+// Returns true if "str" has "prefix" as a prefix.
>+static bool StrPrefix(const char *str, const char *prefix) {
>+  size_t i = 0;
>+  while (str[i] != '\0' && prefix[i] != '\0' && str[i] == prefix[i]) {
>+    ++i;
>+  }
>+  return prefix[i] == '\0';  // Consumed everything in "prefix".
>+}
>+
>+static void InitState(State *state, const char *mangled, char *out,
>+                      int out_size) {
>+  state->mangled_begin = mangled;
>+  state->out = out;
>+  state->out_end_idx = out_size;
>+  state->recursion_depth = 0;
>+  state->steps = 0;
>+
>+  state->parse_state.mangled_idx = 0;
>+  state->parse_state.out_cur_idx = 0;
>+  state->parse_state.prev_name_idx = 0;
>+  state->parse_state.prev_name_length = -1;
>+  state->parse_state.nest_level = -1;
>+  state->parse_state.append = true;
>+}
>+
>+static inline const char *RemainingInput(State *state) {
>+  return &state->mangled_begin[state->parse_state.mangled_idx];
>+}
>+
>+// Returns true and advances "mangled_idx" if we find "one_char_token"
>+// at "mangled_idx" position.  It is assumed that "one_char_token" does
>+// not contain '\0'.
>+static bool ParseOneCharToken(State *state, const char one_char_token) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (RemainingInput(state)[0] == one_char_token) {
>+    ++state->parse_state.mangled_idx;
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// Returns true and advances "mangled_cur" if we find "two_char_token"
>+// at "mangled_cur" position.  It is assumed that "two_char_token" does
>+// not contain '\0'.
>+static bool ParseTwoCharToken(State *state, const char *two_char_token) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (RemainingInput(state)[0] == two_char_token[0] &&
>+      RemainingInput(state)[1] == two_char_token[1]) {
>+    state->parse_state.mangled_idx += 2;
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// Returns true and advances "mangled_cur" if we find any character in
>+// "char_class" at "mangled_cur" position.
>+static bool ParseCharClass(State *state, const char *char_class) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (RemainingInput(state)[0] == '\0') {
>+    return false;
>+  }
>+  const char *p = char_class;
>+  for (; *p != '\0'; ++p) {
>+    if (RemainingInput(state)[0] == *p) {
>+      ++state->parse_state.mangled_idx;
>+      return true;
>+    }
>+  }
>+  return false;
>+}
>+
>+static bool ParseDigit(State *state, int *digit) {
>+  char c = RemainingInput(state)[0];
>+  if (ParseCharClass(state, "0123456789")) {
>+    if (digit != nullptr) {
>+      *digit = c - '0';
>+    }
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// This function is used for handling an optional non-terminal.
>+static bool Optional(bool /*status*/) { return true; }
>+
>+// This function is used for handling <non-terminal>+ syntax.
>+typedef bool (*ParseFunc)(State *);
>+static bool OneOrMore(ParseFunc parse_func, State *state) {
>+  if (parse_func(state)) {
>+    while (parse_func(state)) {
>+    }
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// This function is used for handling <non-terminal>* syntax. The function
>+// always returns true and must be followed by a termination token or a
>+// terminating sequence not handled by parse_func (e.g.
>+// ParseOneCharToken(state, 'E')).
>+static bool ZeroOrMore(ParseFunc parse_func, State *state) {
>+  while (parse_func(state)) {
>+  }
>+  return true;
>+}
>+
>+// Append "str" at "out_cur_idx".  If there is an overflow, out_cur_idx is
>+// set to out_end_idx+1.  The output std::string is ensured to
>+// always terminate with '\0' as long as there is no overflow.
>+static void Append(State *state, const char *const str, const int length) {
>+  for (int i = 0; i < length; ++i) {
>+    if (state->parse_state.out_cur_idx + 1 <
>+        state->out_end_idx) {  // +1 for '\0'
>+      state->out[state->parse_state.out_cur_idx++] = str[i];
>+    } else {
>+      // signal overflow
>+      state->parse_state.out_cur_idx = state->out_end_idx + 1;
>+      break;
>+    }
>+  }
>+  if (state->parse_state.out_cur_idx < state->out_end_idx) {
>+    state->out[state->parse_state.out_cur_idx] =
>+        '\0';  // Terminate it with '\0'
>+  }
>+}
>+
>+// We don't use equivalents in libc to avoid locale issues.
>+static bool IsLower(char c) { return c >= 'a' && c <= 'z'; }
>+
>+static bool IsAlpha(char c) {
>+  return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
>+}
>+
>+static bool IsDigit(char c) { return c >= '0' && c <= '9'; }
>+
>+// Returns true if "str" is a function clone suffix.  These suffixes are used
>+// by GCC 4.5.x and later versions (and our locally-modified version of GCC
>+// 4.4.x) to indicate functions which have been cloned during optimization.
>+// We treat any sequence (.<alpha>+.<digit>+)+ as a function clone suffix.
>+static bool IsFunctionCloneSuffix(const char *str) {
>+  size_t i = 0;
>+  while (str[i] != '\0') {
>+    // Consume a single .<alpha>+.<digit>+ sequence.
>+    if (str[i] != '.' || !IsAlpha(str[i + 1])) {
>+      return false;
>+    }
>+    i += 2;
>+    while (IsAlpha(str[i])) {
>+      ++i;
>+    }
>+    if (str[i] != '.' || !IsDigit(str[i + 1])) {
>+      return false;
>+    }
>+    i += 2;
>+    while (IsDigit(str[i])) {
>+      ++i;
>+    }
>+  }
>+  return true;  // Consumed everything in "str".
>+}
>+
>+static bool EndsWith(State *state, const char chr) {
>+  return state->parse_state.out_cur_idx > 0 &&
>+         chr == state->out[state->parse_state.out_cur_idx - 1];
>+}
>+
>+// Append "str" with some tweaks, iff "append" state is true.
>+static void MaybeAppendWithLength(State *state, const char *const str,
>+                                  const int length) {
>+  if (state->parse_state.append && length > 0) {
>+    // Append a space if the output buffer ends with '<' and "str"
>+    // starts with '<' to avoid <<<.
>+    if (str[0] == '<' && EndsWith(state, '<')) {
>+      Append(state, " ", 1);
>+    }
>+    // Remember the last identifier name for ctors/dtors.
>+    if (IsAlpha(str[0]) || str[0] == '_') {
>+      state->parse_state.prev_name_idx = state->parse_state.out_cur_idx;
>+      state->parse_state.prev_name_length = length;
>+    }
>+    Append(state, str, length);
>+  }
>+}
>+
>+// Appends a positive decimal number to the output if appending is enabled.
>+static bool MaybeAppendDecimal(State *state, unsigned int val) {
>+  // Max {32-64}-bit unsigned int is 20 digits.
>+  constexpr size_t kMaxLength = 20;
>+  char buf[kMaxLength];
>+
>+  // We can't use itoa or sprintf as neither is specified to be
>+  // async-signal-safe.
>+  if (state->parse_state.append) {
>+    // We can't have a one-before-the-beginning pointer, so instead start with
>+    // one-past-the-end and manipulate one character before the pointer.
>+    char *p = &buf[kMaxLength];
>+    do {  // val=0 is the only input that should write a leading zero digit.
>+      *--p = (val % 10) + '0';
>+      val /= 10;
>+    } while (p > buf && val != 0);
>+
>+    // 'p' landed on the last character we set.  How convenient.
>+    Append(state, p, kMaxLength - (p - buf));
>+  }
>+
>+  return true;
>+}
>+
>+// A convenient wrapper around MaybeAppendWithLength().
>+// Returns true so that it can be placed in "if" conditions.
>+static bool MaybeAppend(State *state, const char *const str) {
>+  if (state->parse_state.append) {
>+    int length = StrLen(str);
>+    MaybeAppendWithLength(state, str, length);
>+  }
>+  return true;
>+}
>+
>+// This function is used for handling nested names.
>+static bool EnterNestedName(State *state) {
>+  state->parse_state.nest_level = 0;
>+  return true;
>+}
>+
>+// This function is used for handling nested names.
>+static bool LeaveNestedName(State *state, int16_t prev_value) {
>+  state->parse_state.nest_level = prev_value;
>+  return true;
>+}
>+
>+// Disable the append mode not to print function parameters, etc.
>+static bool DisableAppend(State *state) {
>+  state->parse_state.append = false;
>+  return true;
>+}
>+
>+// Restore the append mode to the previous state.
>+static bool RestoreAppend(State *state, bool prev_value) {
>+  state->parse_state.append = prev_value;
>+  return true;
>+}
>+
>+// Increase the nest level for nested names.
>+static void MaybeIncreaseNestLevel(State *state) {
>+  if (state->parse_state.nest_level > -1) {
>+    ++state->parse_state.nest_level;
>+  }
>+}
>+
>+// Appends :: for nested names if necessary.
>+static void MaybeAppendSeparator(State *state) {
>+  if (state->parse_state.nest_level >= 1) {
>+    MaybeAppend(state, "::");
>+  }
>+}
>+
>+// Cancel the last separator if necessary.
>+static void MaybeCancelLastSeparator(State *state) {
>+  if (state->parse_state.nest_level >= 1 && state->parse_state.append &&
>+      state->parse_state.out_cur_idx >= 2) {
>+    state->parse_state.out_cur_idx -= 2;
>+    state->out[state->parse_state.out_cur_idx] = '\0';
>+  }
>+}
>+
>+// Returns true if the identifier of the given length pointed to by
>+// "mangled_cur" is anonymous namespace.
>+static bool IdentifierIsAnonymousNamespace(State *state, int length) {
>+  // Returns true if "anon_prefix" is a proper prefix of "mangled_cur".
>+  static const char anon_prefix[] = "_GLOBAL__N_";
>+  return (length > static_cast<int>(sizeof(anon_prefix) - 1) &&
>+          StrPrefix(RemainingInput(state), anon_prefix));
>+}
>+
>+// Forward declarations of our parsing functions.
>+static bool ParseMangledName(State *state);
>+static bool ParseEncoding(State *state);
>+static bool ParseName(State *state);
>+static bool ParseUnscopedName(State *state);
>+static bool ParseNestedName(State *state);
>+static bool ParsePrefix(State *state);
>+static bool ParseUnqualifiedName(State *state);
>+static bool ParseSourceName(State *state);
>+static bool ParseLocalSourceName(State *state);
>+static bool ParseUnnamedTypeName(State *state);
>+static bool ParseNumber(State *state, int *number_out);
>+static bool ParseFloatNumber(State *state);
>+static bool ParseSeqId(State *state);
>+static bool ParseIdentifier(State *state, int length);
>+static bool ParseOperatorName(State *state, int *arity);
>+static bool ParseSpecialName(State *state);
>+static bool ParseCallOffset(State *state);
>+static bool ParseNVOffset(State *state);
>+static bool ParseVOffset(State *state);
>+static bool ParseCtorDtorName(State *state);
>+static bool ParseDecltype(State *state);
>+static bool ParseType(State *state);
>+static bool ParseCVQualifiers(State *state);
>+static bool ParseBuiltinType(State *state);
>+static bool ParseFunctionType(State *state);
>+static bool ParseBareFunctionType(State *state);
>+static bool ParseClassEnumType(State *state);
>+static bool ParseArrayType(State *state);
>+static bool ParsePointerToMemberType(State *state);
>+static bool ParseTemplateParam(State *state);
>+static bool ParseTemplateTemplateParam(State *state);
>+static bool ParseTemplateArgs(State *state);
>+static bool ParseTemplateArg(State *state);
>+static bool ParseBaseUnresolvedName(State *state);
>+static bool ParseUnresolvedName(State *state);
>+static bool ParseExpression(State *state);
>+static bool ParseExprPrimary(State *state);
>+static bool ParseExprCastValue(State *state);
>+static bool ParseLocalName(State *state);
>+static bool ParseLocalNameSuffix(State *state);
>+static bool ParseDiscriminator(State *state);
>+static bool ParseSubstitution(State *state, bool accept_std);
>+
>+// Implementation note: the following code is a straightforward
>+// translation of the Itanium C++ ABI defined in BNF with a couple of
>+// exceptions.
>+//
>+// - Support GNU extensions not defined in the Itanium C++ ABI
>+// - <prefix> and <template-prefix> are combined to avoid infinite loop
>+// - Reorder patterns to shorten the code
>+// - Reorder patterns to give greedier functions precedence
>+//   We'll mark "Less greedy than" for these cases in the code
>+//
>+// Each parsing function changes the parse state and returns true on
>+// success, or returns false and doesn't change the parse state (note:
>+// the parse-steps counter increases regardless of success or failure).
>+// To ensure that the parse state isn't changed in the latter case, we
>+// save the original state before we call multiple parsing functions
>+// consecutively with &&, and restore it if unsuccessful.  See
>+// ParseEncoding() as an example of this convention.  We follow the
>+// convention throughout the code.
>+//
>+// Originally we tried to do demangling without following the full ABI
>+// syntax but it turned out we needed to follow the full syntax to
>+// parse complicated cases like nested template arguments.  Note that
>+// implementing a full-fledged demangler isn't trivial (libiberty's
>+// cp-demangle.c has +4300 lines).
>+//
>+// Note that (foo) in <(foo) ...> is a modifier to be ignored.
>+//
>+// Reference:
>+// - Itanium C++ ABI
>+//   <https://mentorembedded.github.io/cxx-abi/abi.html#mangling>
>+
>+// <mangled-name> ::= _Z <encoding>
>+static bool ParseMangledName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  return ParseTwoCharToken(state, "_Z") && ParseEncoding(state);
>+}
>+
>+// <encoding> ::= <(function) name> <bare-function-type>
>+//            ::= <(data) name>
>+//            ::= <special-name>
>+static bool ParseEncoding(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  // Implementing the first two productions together as <name>
>+  // [<bare-function-type>] avoids exponential blowup of backtracking.
>+  //
>+  // Since Optional(...) can't fail, there's no need to copy the state for
>+  // backtracking.
>+  if (ParseName(state) && Optional(ParseBareFunctionType(state))) {
>+    return true;
>+  }
>+
>+  if (ParseSpecialName(state)) {
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// <name> ::= <nested-name>
>+//        ::= <unscoped-template-name> <template-args>
>+//        ::= <unscoped-name>
>+//        ::= <local-name>
>+static bool ParseName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseNestedName(state) || ParseLocalName(state)) {
>+    return true;
>+  }
>+
>+  // We reorganize the productions to avoid re-parsing unscoped names.
>+  // - Inline <unscoped-template-name> productions:
>+  //   <name> ::= <substitution> <template-args>
>+  //          ::= <unscoped-name> <template-args>
>+  //          ::= <unscoped-name>
>+  // - Merge the two productions that start with unscoped-name:
>+  //   <name> ::= <unscoped-name> [<template-args>]
>+
>+  ParseState copy = state->parse_state;
>+  // "std<...>" isn't a valid name.
>+  if (ParseSubstitution(state, /*accept_std=*/false) &&
>+      ParseTemplateArgs(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Note there's no need to restore state after this since only the first
>+  // subparser can fail.
>+  return ParseUnscopedName(state) && Optional(ParseTemplateArgs(state));
>+}
>+
>+// <unscoped-name> ::= <unqualified-name>
>+//                 ::= St <unqualified-name>
>+static bool ParseUnscopedName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseUnqualifiedName(state)) {
>+    return true;
>+  }
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseTwoCharToken(state, "St") && MaybeAppend(state, "std::") &&
>+      ParseUnqualifiedName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <ref-qualifer> ::= R // lvalue method reference qualifier
>+//                ::= O // rvalue method reference qualifier
>+static inline bool ParseRefQualifier(State *state) {
>+  return ParseCharClass(state, "OR");
>+}
>+
>+// <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix>
>+//                   <unqualified-name> E
>+//               ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix>
>+//                   <template-args> E
>+static bool ParseNestedName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'N') && EnterNestedName(state) &&
>+      Optional(ParseCVQualifiers(state)) &&
>+      Optional(ParseRefQualifier(state)) && ParsePrefix(state) &&
>+      LeaveNestedName(state, copy.nest_level) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// This part is tricky.  If we literally translate them to code, we'll
>+// end up infinite loop.  Hence we merge them to avoid the case.
>+//
>+// <prefix> ::= <prefix> <unqualified-name>
>+//          ::= <template-prefix> <template-args>
>+//          ::= <template-param>
>+//          ::= <substitution>
>+//          ::= # empty
>+// <template-prefix> ::= <prefix> <(template) unqualified-name>
>+//                   ::= <template-param>
>+//                   ::= <substitution>
>+static bool ParsePrefix(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  bool has_something = false;
>+  while (true) {
>+    MaybeAppendSeparator(state);
>+    if (ParseTemplateParam(state) ||
>+        ParseSubstitution(state, /*accept_std=*/true) ||
>+        ParseUnscopedName(state) ||
>+        (ParseOneCharToken(state, 'M') && ParseUnnamedTypeName(state))) {
>+      has_something = true;
>+      MaybeIncreaseNestLevel(state);
>+      continue;
>+    }
>+    MaybeCancelLastSeparator(state);
>+    if (has_something && ParseTemplateArgs(state)) {
>+      return ParsePrefix(state);
>+    } else {
>+      break;
>+    }
>+  }
>+  return true;
>+}
>+
>+// <unqualified-name> ::= <operator-name>
>+//                    ::= <ctor-dtor-name>
>+//                    ::= <source-name>
>+//                    ::= <local-source-name> // GCC extension; see below.
>+//                    ::= <unnamed-type-name>
>+static bool ParseUnqualifiedName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  return (ParseOperatorName(state, nullptr) || ParseCtorDtorName(state) ||
>+          ParseSourceName(state) || ParseLocalSourceName(state) ||
>+          ParseUnnamedTypeName(state));
>+}
>+
>+// <source-name> ::= <positive length number> <identifier>
>+static bool ParseSourceName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  int length = -1;
>+  if (ParseNumber(state, &length) && ParseIdentifier(state, length)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <local-source-name> ::= L <source-name> [<discriminator>]
>+//
>+// References:
>+//   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31775
>+//   http://gcc.gnu.org/viewcvs?view=rev&revision=124467
>+static bool ParseLocalSourceName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'L') && ParseSourceName(state) &&
>+      Optional(ParseDiscriminator(state))) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <unnamed-type-name> ::= Ut [<(nonnegative) number>] _
>+//                     ::= <closure-type-name>
>+// <closure-type-name> ::= Ul <lambda-sig> E [<(nonnegative) number>] _
>+// <lambda-sig>        ::= <(parameter) type>+
>+static bool ParseUnnamedTypeName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  // Type's 1-based index n is encoded as { "", n == 1; itoa(n-2), otherwise }.
>+  // Optionally parse the encoded value into 'which' and add 2 to get the index.
>+  int which = -1;
>+
>+  // Unnamed type local to function or class.
>+  if (ParseTwoCharToken(state, "Ut") && Optional(ParseNumber(state, &which)) &&
>+      which <= std::numeric_limits<int>::max() - 2 &&  // Don't overflow.
>+      ParseOneCharToken(state, '_')) {
>+    MaybeAppend(state, "{unnamed type#");
>+    MaybeAppendDecimal(state, 2 + which);
>+    MaybeAppend(state, "}");
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Closure type.
>+  which = -1;
>+  if (ParseTwoCharToken(state, "Ul") && DisableAppend(state) &&
>+      OneOrMore(ParseType, state) && RestoreAppend(state, copy.append) &&
>+      ParseOneCharToken(state, 'E') && Optional(ParseNumber(state, &which)) &&
>+      which <= std::numeric_limits<int>::max() - 2 &&  // Don't overflow.
>+      ParseOneCharToken(state, '_')) {
>+    MaybeAppend(state, "{lambda()#");
>+    MaybeAppendDecimal(state, 2 + which);
>+    MaybeAppend(state, "}");
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <number> ::= [n] <non-negative decimal integer>
>+// If "number_out" is non-null, then *number_out is set to the value of the
>+// parsed number on success.
>+static bool ParseNumber(State *state, int *number_out) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  bool negative = false;
>+  if (ParseOneCharToken(state, 'n')) {
>+    negative = true;
>+  }
>+  const char *p = RemainingInput(state);
>+  uint64_t number = 0;
>+  for (; *p != '\0'; ++p) {
>+    if (IsDigit(*p)) {
>+      number = number * 10 + (*p - '0');
>+    } else {
>+      break;
>+    }
>+  }
>+  // Apply the sign with uint64_t arithmetic so overflows aren't UB.  Gives
>+  // "incorrect" results for out-of-range inputs, but negative values only
>+  // appear for literals, which aren't printed.
>+  if (negative) {
>+    number = ~number + 1;
>+  }
>+  if (p != RemainingInput(state)) {  // Conversion succeeded.
>+    state->parse_state.mangled_idx += p - RemainingInput(state);
>+    if (number_out != nullptr) {
>+      // Note: possibly truncate "number".
>+      *number_out = number;
>+    }
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// Floating-point literals are encoded using a fixed-length lowercase
>+// hexadecimal std::string.
>+static bool ParseFloatNumber(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  const char *p = RemainingInput(state);
>+  for (; *p != '\0'; ++p) {
>+    if (!IsDigit(*p) && !(*p >= 'a' && *p <= 'f')) {
>+      break;
>+    }
>+  }
>+  if (p != RemainingInput(state)) {  // Conversion succeeded.
>+    state->parse_state.mangled_idx += p - RemainingInput(state);
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// The <seq-id> is a sequence number in base 36,
>+// using digits and upper case letters
>+static bool ParseSeqId(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  const char *p = RemainingInput(state);
>+  for (; *p != '\0'; ++p) {
>+    if (!IsDigit(*p) && !(*p >= 'A' && *p <= 'Z')) {
>+      break;
>+    }
>+  }
>+  if (p != RemainingInput(state)) {  // Conversion succeeded.
>+    state->parse_state.mangled_idx += p - RemainingInput(state);
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// <identifier> ::= <unqualified source code identifier> (of given length)
>+static bool ParseIdentifier(State *state, int length) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (length < 0 || !AtLeastNumCharsRemaining(RemainingInput(state), length)) {
>+    return false;
>+  }
>+  if (IdentifierIsAnonymousNamespace(state, length)) {
>+    MaybeAppend(state, "(anonymous namespace)");
>+  } else {
>+    MaybeAppendWithLength(state, RemainingInput(state), length);
>+  }
>+  state->parse_state.mangled_idx += length;
>+  return true;
>+}
>+
>+// <operator-name> ::= nw, and other two letters cases
>+//                 ::= cv <type>  # (cast)
>+//                 ::= v  <digit> <source-name> # vendor extended operator
>+static bool ParseOperatorName(State *state, int *arity) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (!AtLeastNumCharsRemaining(RemainingInput(state), 2)) {
>+    return false;
>+  }
>+  // First check with "cv" (cast) case.
>+  ParseState copy = state->parse_state;
>+  if (ParseTwoCharToken(state, "cv") && MaybeAppend(state, "operator ") &&
>+      EnterNestedName(state) && ParseType(state) &&
>+      LeaveNestedName(state, copy.nest_level)) {
>+    if (arity != nullptr) {
>+      *arity = 1;
>+    }
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Then vendor extended operators.
>+  if (ParseOneCharToken(state, 'v') && ParseDigit(state, arity) &&
>+      ParseSourceName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Other operator names should start with a lower alphabet followed
>+  // by a lower/upper alphabet.
>+  if (!(IsLower(RemainingInput(state)[0]) &&
>+        IsAlpha(RemainingInput(state)[1]))) {
>+    return false;
>+  }
>+  // We may want to perform a binary search if we really need speed.
>+  const AbbrevPair *p;
>+  for (p = kOperatorList; p->abbrev != nullptr; ++p) {
>+    if (RemainingInput(state)[0] == p->abbrev[0] &&
>+        RemainingInput(state)[1] == p->abbrev[1]) {
>+      if (arity != nullptr) {
>+        *arity = p->arity;
>+      }
>+      MaybeAppend(state, "operator");
>+      if (IsLower(*p->real_name)) {  // new, delete, etc.
>+        MaybeAppend(state, " ");
>+      }
>+      MaybeAppend(state, p->real_name);
>+      state->parse_state.mangled_idx += 2;
>+      return true;
>+    }
>+  }
>+  return false;
>+}
>+
>+// <special-name> ::= TV <type>
>+//                ::= TT <type>
>+//                ::= TI <type>
>+//                ::= TS <type>
>+//                ::= Tc <call-offset> <call-offset> <(base) encoding>
>+//                ::= GV <(object) name>
>+//                ::= T <call-offset> <(base) encoding>
>+// G++ extensions:
>+//                ::= TC <type> <(offset) number> _ <(base) type>
>+//                ::= TF <type>
>+//                ::= TJ <type>
>+//                ::= GR <name>
>+//                ::= GA <encoding>
>+//                ::= Th <call-offset> <(base) encoding>
>+//                ::= Tv <call-offset> <(base) encoding>
>+//
>+// Note: we don't care much about them since they don't appear in
>+// stack traces.  The are special data.
>+static bool ParseSpecialName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'T') && ParseCharClass(state, "VTIS") &&
>+      ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "Tc") && ParseCallOffset(state) &&
>+      ParseCallOffset(state) && ParseEncoding(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "GV") && ParseName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'T') && ParseCallOffset(state) &&
>+      ParseEncoding(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // G++ extensions
>+  if (ParseTwoCharToken(state, "TC") && ParseType(state) &&
>+      ParseNumber(state, nullptr) && ParseOneCharToken(state, '_') &&
>+      DisableAppend(state) && ParseType(state)) {
>+    RestoreAppend(state, copy.append);
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'T') && ParseCharClass(state, "FJ") &&
>+      ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "GR") && ParseName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "GA") && ParseEncoding(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'T') && ParseCharClass(state, "hv") &&
>+      ParseCallOffset(state) && ParseEncoding(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <call-offset> ::= h <nv-offset> _
>+//               ::= v <v-offset> _
>+static bool ParseCallOffset(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'h') && ParseNVOffset(state) &&
>+      ParseOneCharToken(state, '_')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'v') && ParseVOffset(state) &&
>+      ParseOneCharToken(state, '_')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <nv-offset> ::= <(offset) number>
>+static bool ParseNVOffset(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  return ParseNumber(state, nullptr);
>+}
>+
>+// <v-offset>  ::= <(offset) number> _ <(virtual offset) number>
>+static bool ParseVOffset(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseNumber(state, nullptr) && ParseOneCharToken(state, '_') &&
>+      ParseNumber(state, nullptr)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <ctor-dtor-name> ::= C1 | C2 | C3
>+//                  ::= D0 | D1 | D2
>+// # GCC extensions: "unified" constructor/destructor.  See
>+// # https://github.com/gcc-mirror/gcc/blob/7ad17b583c3643bd4557f29b8391ca7ef08391f5/gcc/cp/mangle.c#L1847
>+//                  ::= C4 | D4
>+static bool ParseCtorDtorName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'C') && ParseCharClass(state, "1234")) {
>+    const char *const prev_name = state->out + state->parse_state.prev_name_idx;
>+    MaybeAppendWithLength(state, prev_name,
>+                          state->parse_state.prev_name_length);
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'D') && ParseCharClass(state, "0124")) {
>+    const char *const prev_name = state->out + state->parse_state.prev_name_idx;
>+    MaybeAppend(state, "~");
>+    MaybeAppendWithLength(state, prev_name,
>+                          state->parse_state.prev_name_length);
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <decltype> ::= Dt <expression> E  # decltype of an id-expression or class
>+//                                   # member access (C++0x)
>+//            ::= DT <expression> E  # decltype of an expression (C++0x)
>+static bool ParseDecltype(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'D') && ParseCharClass(state, "tT") &&
>+      ParseExpression(state) && ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <type> ::= <CV-qualifiers> <type>
>+//        ::= P <type>   # pointer-to
>+//        ::= R <type>   # reference-to
>+//        ::= O <type>   # rvalue reference-to (C++0x)
>+//        ::= C <type>   # complex pair (C 2000)
>+//        ::= G <type>   # imaginary (C 2000)
>+//        ::= U <source-name> <type>  # vendor extended type qualifier
>+//        ::= <builtin-type>
>+//        ::= <function-type>
>+//        ::= <class-enum-type>  # note: just an alias for <name>
>+//        ::= <array-type>
>+//        ::= <pointer-to-member-type>
>+//        ::= <template-template-param> <template-args>
>+//        ::= <template-param>
>+//        ::= <decltype>
>+//        ::= <substitution>
>+//        ::= Dp <type>          # pack expansion of (C++0x)
>+//
>+static bool ParseType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+
>+  // We should check CV-qualifers, and PRGC things first.
>+  //
>+  // CV-qualifiers overlap with some operator names, but an operator name is not
>+  // valid as a type.  To avoid an ambiguity that can lead to exponential time
>+  // complexity, refuse to backtrack the CV-qualifiers.
>+  //
>+  // _Z4aoeuIrMvvE
>+  //  => _Z 4aoeuI        rM  v     v   E
>+  //         aoeu<operator%=, void, void>
>+  //  => _Z 4aoeuI r Mv v              E
>+  //         aoeu<void void::* restrict>
>+  //
>+  // By consuming the CV-qualifiers first, the former parse is disabled.
>+  if (ParseCVQualifiers(state)) {
>+    const bool result = ParseType(state);
>+    if (!result) state->parse_state = copy;
>+    return result;
>+  }
>+  state->parse_state = copy;
>+
>+  // Similarly, these tag characters can overlap with other <name>s resulting in
>+  // two different parse prefixes that land on <template-args> in the same
>+  // place, such as "C3r1xI...".  So, disable the "ctor-name = C3" parse by
>+  // refusing to backtrack the tag characters.
>+  if (ParseCharClass(state, "OPRCG")) {
>+    const bool result = ParseType(state);
>+    if (!result) state->parse_state = copy;
>+    return result;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "Dp") && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'U') && ParseSourceName(state) &&
>+      ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseBuiltinType(state) || ParseFunctionType(state) ||
>+      ParseClassEnumType(state) || ParseArrayType(state) ||
>+      ParsePointerToMemberType(state) || ParseDecltype(state) ||
>+      // "std" on its own isn't a type.
>+      ParseSubstitution(state, /*accept_std=*/false)) {
>+    return true;
>+  }
>+
>+  if (ParseTemplateTemplateParam(state) && ParseTemplateArgs(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Less greedy than <template-template-param> <template-args>.
>+  if (ParseTemplateParam(state)) {
>+    return true;
>+  }
>+
>+  return false;
>+}
>+
>+// <CV-qualifiers> ::= [r] [V] [K]
>+// We don't allow empty <CV-qualifiers> to avoid infinite loop in
>+// ParseType().
>+static bool ParseCVQualifiers(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  int num_cv_qualifiers = 0;
>+  num_cv_qualifiers += ParseOneCharToken(state, 'r');
>+  num_cv_qualifiers += ParseOneCharToken(state, 'V');
>+  num_cv_qualifiers += ParseOneCharToken(state, 'K');
>+  return num_cv_qualifiers > 0;
>+}
>+
>+// <builtin-type> ::= v, etc.
>+//                ::= u <source-name>
>+static bool ParseBuiltinType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  const AbbrevPair *p;
>+  for (p = kBuiltinTypeList; p->abbrev != nullptr; ++p) {
>+    if (RemainingInput(state)[0] == p->abbrev[0]) {
>+      MaybeAppend(state, p->real_name);
>+      ++state->parse_state.mangled_idx;
>+      return true;
>+    }
>+  }
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'u') && ParseSourceName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <function-type> ::= F [Y] <bare-function-type> E
>+static bool ParseFunctionType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'F') &&
>+      Optional(ParseOneCharToken(state, 'Y')) && ParseBareFunctionType(state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <bare-function-type> ::= <(signature) type>+
>+static bool ParseBareFunctionType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  DisableAppend(state);
>+  if (OneOrMore(ParseType, state)) {
>+    RestoreAppend(state, copy.append);
>+    MaybeAppend(state, "()");
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <class-enum-type> ::= <name>
>+static bool ParseClassEnumType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  return ParseName(state);
>+}
>+
>+// <array-type> ::= A <(positive dimension) number> _ <(element) type>
>+//              ::= A [<(dimension) expression>] _ <(element) type>
>+static bool ParseArrayType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'A') && ParseNumber(state, nullptr) &&
>+      ParseOneCharToken(state, '_') && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'A') && Optional(ParseExpression(state)) &&
>+      ParseOneCharToken(state, '_') && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <pointer-to-member-type> ::= M <(class) type> <(member) type>
>+static bool ParsePointerToMemberType(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'M') && ParseType(state) && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <template-param> ::= T_
>+//                  ::= T <parameter-2 non-negative number> _
>+static bool ParseTemplateParam(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseTwoCharToken(state, "T_")) {
>+    MaybeAppend(state, "?");  // We don't support template substitutions.
>+    return true;
>+  }
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'T') && ParseNumber(state, nullptr) &&
>+      ParseOneCharToken(state, '_')) {
>+    MaybeAppend(state, "?");  // We don't support template substitutions.
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <template-template-param> ::= <template-param>
>+//                           ::= <substitution>
>+static bool ParseTemplateTemplateParam(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  return (ParseTemplateParam(state) ||
>+          // "std" on its own isn't a template.
>+          ParseSubstitution(state, /*accept_std=*/false));
>+}
>+
>+// <template-args> ::= I <template-arg>+ E
>+static bool ParseTemplateArgs(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  DisableAppend(state);
>+  if (ParseOneCharToken(state, 'I') && OneOrMore(ParseTemplateArg, state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    RestoreAppend(state, copy.append);
>+    MaybeAppend(state, "<>");
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <template-arg>  ::= <type>
>+//                 ::= <expr-primary>
>+//                 ::= J <template-arg>* E        # argument pack
>+//                 ::= X <expression> E
>+static bool ParseTemplateArg(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'J') && ZeroOrMore(ParseTemplateArg, state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // There can be significant overlap between the following leading to
>+  // exponential backtracking:
>+  //
>+  //   <expr-primary> ::= L <type> <expr-cast-value> E
>+  //                 e.g. L 2xxIvE 1                 E
>+  //   <type>         ==> <local-source-name> <template-args>
>+  //                 e.g. L 2xx               IvE
>+  //
>+  // This means parsing an entire <type> twice, and <type> can contain
>+  // <template-arg>, so this can generate exponential backtracking.  There is
>+  // only overlap when the remaining input starts with "L <source-name>", so
>+  // parse all cases that can start this way jointly to share the common prefix.
>+  //
>+  // We have:
>+  //
>+  //   <template-arg> ::= <type>
>+  //                  ::= <expr-primary>
>+  //
>+  // First, drop all the productions of <type> that must start with something
>+  // other than 'L'.  All that's left is <class-enum-type>; inline it.
>+  //
>+  //   <type> ::= <nested-name> # starts with 'N'
>+  //          ::= <unscoped-name>
>+  //          ::= <unscoped-template-name> <template-args>
>+  //          ::= <local-name> # starts with 'Z'
>+  //
>+  // Drop and inline again:
>+  //
>+  //   <type> ::= <unscoped-name>
>+  //          ::= <unscoped-name> <template-args>
>+  //          ::= <substitution> <template-args> # starts with 'S'
>+  //
>+  // Merge the first two, inline <unscoped-name>, drop last:
>+  //
>+  //   <type> ::= <unqualified-name> [<template-args>]
>+  //          ::= St <unqualified-name> [<template-args>] # starts with 'S'
>+  //
>+  // Drop and inline:
>+  //
>+  //   <type> ::= <operator-name> [<template-args>] # starts with lowercase
>+  //          ::= <ctor-dtor-name> [<template-args>] # starts with 'C' or 'D'
>+  //          ::= <source-name> [<template-args>] # starts with digit
>+  //          ::= <local-source-name> [<template-args>]
>+  //          ::= <unnamed-type-name> [<template-args>] # starts with 'U'
>+  //
>+  // One more time:
>+  //
>+  //   <type> ::= L <source-name> [<template-args>]
>+  //
>+  // Likewise with <expr-primary>:
>+  //
>+  //   <expr-primary> ::= L <type> <expr-cast-value> E
>+  //                  ::= LZ <encoding> E # cannot overlap; drop
>+  //                  ::= L <mangled_name> E # cannot overlap; drop
>+  //
>+  // By similar reasoning as shown above, the only <type>s starting with
>+  // <source-name> are "<source-name> [<template-args>]".  Inline this.
>+  //
>+  //   <expr-primary> ::= L <source-name> [<template-args>] <expr-cast-value> E
>+  //
>+  // Now inline both of these into <template-arg>:
>+  //
>+  //   <template-arg> ::= L <source-name> [<template-args>]
>+  //                  ::= L <source-name> [<template-args>] <expr-cast-value> E
>+  //
>+  // Merge them and we're done:
>+  //   <template-arg>
>+  //     ::= L <source-name> [<template-args>] [<expr-cast-value> E]
>+  if (ParseLocalSourceName(state) && Optional(ParseTemplateArgs(state))) {
>+    copy = state->parse_state;
>+    if (ParseExprCastValue(state) && ParseOneCharToken(state, 'E')) {
>+      return true;
>+    }
>+    state->parse_state = copy;
>+    return true;
>+  }
>+
>+  // Now that the overlapping cases can't reach this code, we can safely call
>+  // both of these.
>+  if (ParseType(state) || ParseExprPrimary(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'X') && ParseExpression(state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <unresolved-type> ::= <template-param> [<template-args>]
>+//                   ::= <decltype>
>+//                   ::= <substitution>
>+static inline bool ParseUnresolvedType(State *state) {
>+  // No ComplexityGuard because we don't copy the state in this stack frame.
>+  return (ParseTemplateParam(state) && Optional(ParseTemplateArgs(state))) ||
>+         ParseDecltype(state) || ParseSubstitution(state, /*accept_std=*/false);
>+}
>+
>+// <simple-id> ::= <source-name> [<template-args>]
>+static inline bool ParseSimpleId(State *state) {
>+  // No ComplexityGuard because we don't copy the state in this stack frame.
>+
>+  // Note: <simple-id> cannot be followed by a parameter pack; see comment in
>+  // ParseUnresolvedType.
>+  return ParseSourceName(state) && Optional(ParseTemplateArgs(state));
>+}
>+
>+// <base-unresolved-name> ::= <source-name> [<template-args>]
>+//                        ::= on <operator-name> [<template-args>]
>+//                        ::= dn <destructor-name>
>+static bool ParseBaseUnresolvedName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+
>+  if (ParseSimpleId(state)) {
>+    return true;
>+  }
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseTwoCharToken(state, "on") && ParseOperatorName(state, nullptr) &&
>+      Optional(ParseTemplateArgs(state))) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "dn") &&
>+      (ParseUnresolvedType(state) || ParseSimpleId(state))) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <unresolved-name> ::= [gs] <base-unresolved-name>
>+//                   ::= sr <unresolved-type> <base-unresolved-name>
>+//                   ::= srN <unresolved-type> <unresolved-qualifier-level>+ E
>+//                         <base-unresolved-name>
>+//                   ::= [gs] sr <unresolved-qualifier-level>+ E
>+//                         <base-unresolved-name>
>+static bool ParseUnresolvedName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+
>+  ParseState copy = state->parse_state;
>+  if (Optional(ParseTwoCharToken(state, "gs")) &&
>+      ParseBaseUnresolvedName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "sr") && ParseUnresolvedType(state) &&
>+      ParseBaseUnresolvedName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseTwoCharToken(state, "sr") && ParseOneCharToken(state, 'N') &&
>+      ParseUnresolvedType(state) &&
>+      OneOrMore(/* <unresolved-qualifier-level> ::= */ ParseSimpleId, state) &&
>+      ParseOneCharToken(state, 'E') && ParseBaseUnresolvedName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (Optional(ParseTwoCharToken(state, "gs")) &&
>+      ParseTwoCharToken(state, "sr") &&
>+      OneOrMore(/* <unresolved-qualifier-level> ::= */ ParseSimpleId, state) &&
>+      ParseOneCharToken(state, 'E') && ParseBaseUnresolvedName(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <expression> ::= <1-ary operator-name> <expression>
>+//              ::= <2-ary operator-name> <expression> <expression>
>+//              ::= <3-ary operator-name> <expression> <expression> <expression>
>+//              ::= cl <expression>+ E
>+//              ::= cv <type> <expression>      # type (expression)
>+//              ::= cv <type> _ <expression>* E # type (expr-list)
>+//              ::= st <type>
>+//              ::= <template-param>
>+//              ::= <function-param>
>+//              ::= <expr-primary>
>+//              ::= dt <expression> <unresolved-name> # expr.name
>+//              ::= pt <expression> <unresolved-name> # expr->name
>+//              ::= sp <expression>         # argument pack expansion
>+//              ::= sr <type> <unqualified-name> <template-args>
>+//              ::= sr <type> <unqualified-name>
>+// <function-param> ::= fp <(top-level) CV-qualifiers> _
>+//                  ::= fp <(top-level) CV-qualifiers> <number> _
>+//                  ::= fL <number> p <(top-level) CV-qualifiers> _
>+//                  ::= fL <number> p <(top-level) CV-qualifiers> <number> _
>+static bool ParseExpression(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseTemplateParam(state) || ParseExprPrimary(state)) {
>+    return true;
>+  }
>+
>+  // Object/function call expression.
>+  ParseState copy = state->parse_state;
>+  if (ParseTwoCharToken(state, "cl") && OneOrMore(ParseExpression, state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Function-param expression (level 0).
>+  if (ParseTwoCharToken(state, "fp") && Optional(ParseCVQualifiers(state)) &&
>+      Optional(ParseNumber(state, nullptr)) && ParseOneCharToken(state, '_')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Function-param expression (level 1+).
>+  if (ParseTwoCharToken(state, "fL") && Optional(ParseNumber(state, nullptr)) &&
>+      ParseOneCharToken(state, 'p') && Optional(ParseCVQualifiers(state)) &&
>+      Optional(ParseNumber(state, nullptr)) && ParseOneCharToken(state, '_')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Parse the conversion expressions jointly to avoid re-parsing the <type> in
>+  // their common prefix.  Parsed as:
>+  // <expression> ::= cv <type> <conversion-args>
>+  // <conversion-args> ::= _ <expression>* E
>+  //                   ::= <expression>
>+  //
>+  // Also don't try ParseOperatorName after seeing "cv", since ParseOperatorName
>+  // also needs to accept "cv <type>" in other contexts.
>+  if (ParseTwoCharToken(state, "cv")) {
>+    if (ParseType(state)) {
>+      ParseState copy2 = state->parse_state;
>+      if (ParseOneCharToken(state, '_') && ZeroOrMore(ParseExpression, state) &&
>+          ParseOneCharToken(state, 'E')) {
>+        return true;
>+      }
>+      state->parse_state = copy2;
>+      if (ParseExpression(state)) {
>+        return true;
>+      }
>+    }
>+  } else {
>+    // Parse unary, binary, and ternary operator expressions jointly, taking
>+    // care not to re-parse subexpressions repeatedly. Parse like:
>+    //   <expression> ::= <operator-name> <expression>
>+    //                    [<one-to-two-expressions>]
>+    //   <one-to-two-expressions> ::= <expression> [<expression>]
>+    int arity = -1;
>+    if (ParseOperatorName(state, &arity) &&
>+        arity > 0 &&  // 0 arity => disabled.
>+        (arity < 3 || ParseExpression(state)) &&
>+        (arity < 2 || ParseExpression(state)) &&
>+        (arity < 1 || ParseExpression(state))) {
>+      return true;
>+    }
>+  }
>+  state->parse_state = copy;
>+
>+  // sizeof type
>+  if (ParseTwoCharToken(state, "st") && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Object and pointer member access expressions.
>+  if ((ParseTwoCharToken(state, "dt") || ParseTwoCharToken(state, "pt")) &&
>+      ParseExpression(state) && ParseType(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Parameter pack expansion
>+  if (ParseTwoCharToken(state, "sp") && ParseExpression(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return ParseUnresolvedName(state);
>+}
>+
>+// <expr-primary> ::= L <type> <(value) number> E
>+//                ::= L <type> <(value) float> E
>+//                ::= L <mangled-name> E
>+//                // A bug in g++'s C++ ABI version 2 (-fabi-version=2).
>+//                ::= LZ <encoding> E
>+//
>+// Warning, subtle: the "bug" LZ production above is ambiguous with the first
>+// production where <type> starts with <local-name>, which can lead to
>+// exponential backtracking in two scenarios:
>+//
>+// - When whatever follows the E in the <local-name> in the first production is
>+//   not a name, we backtrack the whole <encoding> and re-parse the whole thing.
>+//
>+// - When whatever follows the <local-name> in the first production is not a
>+//   number and this <expr-primary> may be followed by a name, we backtrack the
>+//   <name> and re-parse it.
>+//
>+// Moreover this ambiguity isn't always resolved -- for example, the following
>+// has two different parses:
>+//
>+//   _ZaaILZ4aoeuE1x1EvE
>+//   => operator&&<aoeu, x, E, void>
>+//   => operator&&<(aoeu::x)(1), void>
>+//
>+// To resolve this, we just do what GCC's demangler does, and refuse to parse
>+// casts to <local-name> types.
>+static bool ParseExprPrimary(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+
>+  // The "LZ" special case: if we see LZ, we commit to accept "LZ <encoding> E"
>+  // or fail, no backtracking.
>+  if (ParseTwoCharToken(state, "LZ")) {
>+    if (ParseEncoding(state) && ParseOneCharToken(state, 'E')) {
>+      return true;
>+    }
>+
>+    state->parse_state = copy;
>+    return false;
>+  }
>+
>+  // The merged cast production.
>+  if (ParseOneCharToken(state, 'L') && ParseType(state) &&
>+      ParseExprCastValue(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseOneCharToken(state, 'L') && ParseMangledName(state) &&
>+      ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <number> or <float>, followed by 'E', as described above ParseExprPrimary.
>+static bool ParseExprCastValue(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  // We have to be able to backtrack after accepting a number because we could
>+  // have e.g. "7fffE", which will accept "7" as a number but then fail to find
>+  // the 'E'.
>+  ParseState copy = state->parse_state;
>+  if (ParseNumber(state, nullptr) && ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  if (ParseFloatNumber(state) && ParseOneCharToken(state, 'E')) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  return false;
>+}
>+
>+// <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
>+//              ::= Z <(function) encoding> E s [<discriminator>]
>+//
>+// Parsing a common prefix of these two productions together avoids an
>+// exponential blowup of backtracking.  Parse like:
>+//   <local-name> := Z <encoding> E <local-name-suffix>
>+//   <local-name-suffix> ::= s [<discriminator>]
>+//                       ::= <name> [<discriminator>]
>+
>+static bool ParseLocalNameSuffix(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+
>+  if (MaybeAppend(state, "::") && ParseName(state) &&
>+      Optional(ParseDiscriminator(state))) {
>+    return true;
>+  }
>+
>+  // Since we're not going to overwrite the above "::" by re-parsing the
>+  // <encoding> (whose trailing '\0' byte was in the byte now holding the
>+  // first ':'), we have to rollback the "::" if the <name> parse failed.
>+  if (state->parse_state.append) {
>+    state->out[state->parse_state.out_cur_idx - 2] = '\0';
>+  }
>+
>+  return ParseOneCharToken(state, 's') && Optional(ParseDiscriminator(state));
>+}
>+
>+static bool ParseLocalName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'Z') && ParseEncoding(state) &&
>+      ParseOneCharToken(state, 'E') && ParseLocalNameSuffix(state)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <discriminator> := _ <(non-negative) number>
>+static bool ParseDiscriminator(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, '_') && ParseNumber(state, nullptr)) {
>+    return true;
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// <substitution> ::= S_
>+//                ::= S <seq-id> _
>+//                ::= St, etc.
>+//
>+// "St" is special in that it's not valid as a standalone name, and it *is*
>+// allowed to precede a name without being wrapped in "N...E".  This means that
>+// if we accept it on its own, we can accept "St1a" and try to parse
>+// template-args, then fail and backtrack, accept "St" on its own, then "1a" as
>+// an unqualified name and re-parse the same template-args.  To block this
>+// exponential backtracking, we disable it with 'accept_std=false' in
>+// problematic contexts.
>+static bool ParseSubstitution(State *state, bool accept_std) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseTwoCharToken(state, "S_")) {
>+    MaybeAppend(state, "?");  // We don't support substitutions.
>+    return true;
>+  }
>+
>+  ParseState copy = state->parse_state;
>+  if (ParseOneCharToken(state, 'S') && ParseSeqId(state) &&
>+      ParseOneCharToken(state, '_')) {
>+    MaybeAppend(state, "?");  // We don't support substitutions.
>+    return true;
>+  }
>+  state->parse_state = copy;
>+
>+  // Expand abbreviations like "St" => "std".
>+  if (ParseOneCharToken(state, 'S')) {
>+    const AbbrevPair *p;
>+    for (p = kSubstitutionList; p->abbrev != nullptr; ++p) {
>+      if (RemainingInput(state)[0] == p->abbrev[1] &&
>+          (accept_std || p->abbrev[1] != 't')) {
>+        MaybeAppend(state, "std");
>+        if (p->real_name[0] != '\0') {
>+          MaybeAppend(state, "::");
>+          MaybeAppend(state, p->real_name);
>+        }
>+        ++state->parse_state.mangled_idx;
>+        return true;
>+      }
>+    }
>+  }
>+  state->parse_state = copy;
>+  return false;
>+}
>+
>+// Parse <mangled-name>, optionally followed by either a function-clone suffix
>+// or version suffix.  Returns true only if all of "mangled_cur" was consumed.
>+static bool ParseTopLevelMangledName(State *state) {
>+  ComplexityGuard guard(state);
>+  if (guard.IsTooComplex()) return false;
>+  if (ParseMangledName(state)) {
>+    if (RemainingInput(state)[0] != '\0') {
>+      // Drop trailing function clone suffix, if any.
>+      if (IsFunctionCloneSuffix(RemainingInput(state))) {
>+        return true;
>+      }
>+      // Append trailing version suffix if any.
>+      // ex. _Z3foo@@GLIBCXX_3.4
>+      if (RemainingInput(state)[0] == '@') {
>+        MaybeAppend(state, RemainingInput(state));
>+        return true;
>+      }
>+      return false;  // Unconsumed suffix.
>+    }
>+    return true;
>+  }
>+  return false;
>+}
>+
>+static bool Overflowed(const State *state) {
>+  return state->parse_state.out_cur_idx >= state->out_end_idx;
>+}
>+
>+// The demangler entry point.
>+bool Demangle(const char *mangled, char *out, int out_size) {
>+  State state;
>+  InitState(&state, mangled, out, out_size);
>+  return ParseTopLevelMangledName(&state) && !Overflowed(&state);
>+}
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2e75564ed35b47a1e2e2c7a8d8cddfe82d0661d1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle.h
>@@ -0,0 +1,67 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// An async-signal-safe and thread-safe demangler for Itanium C++ ABI
>+// (aka G++ V3 ABI).
>+//
>+// The demangler is implemented to be used in async signal handlers to
>+// symbolize stack traces.  We cannot use libstdc++'s
>+// abi::__cxa_demangle() in such signal handlers since it's not async
>+// signal safe (it uses malloc() internally).
>+//
>+// Note that this demangler doesn't support full demangling.  More
>+// specifically, it doesn't print types of function parameters and
>+// types of template arguments.  It just skips them.  However, it's
>+// still very useful to extract basic information such as class,
>+// function, constructor, destructor, and operator names.
>+//
>+// See the implementation note in demangle.cc if you are interested.
>+//
>+// Example:
>+//
>+// | Mangled Name  | The Demangler | abi::__cxa_demangle()
>+// |---------------|---------------|-----------------------
>+// | _Z1fv         | f()           | f()
>+// | _Z1fi         | f()           | f(int)
>+// | _Z3foo3bar    | foo()         | foo(bar)
>+// | _Z1fIiEvi     | f<>()         | void f<int>(int)
>+// | _ZN1N1fE      | N::f          | N::f
>+// | _ZN3Foo3BarEv | Foo::Bar()    | Foo::Bar()
>+// | _Zrm1XS_"     | operator%()   | operator%(X, X)
>+// | _ZN3FooC1Ev   | Foo::Foo()    | Foo::Foo()
>+// | _Z1fSs        | f()           | f(std::basic_string<char,
>+// |               |               |   std::char_traits<char>,
>+// |               |               |   std::allocator<char> >)
>+//
>+// See the unit test for more examples.
>+//
>+// Note: we might want to write demanglers for ABIs other than Itanium
>+// C++ ABI in the future.
>+//
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_DEMANGLE_H_
>+#define ABSL_DEBUGGING_INTERNAL_DEMANGLE_H_
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Demangle `mangled`.  On success, return true and write the
>+// demangled symbol name to `out`.  Otherwise, return false.
>+// `out` is modified even if demangling is unsuccessful.
>+bool Demangle(const char *mangled, char *out, int out_size);
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_DEMANGLE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b9d9008f0077e660baab226b30a9fd3e4e8640a4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/demangle_test.cc
>@@ -0,0 +1,191 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/debugging/internal/demangle.h"
>+
>+#include <cstdlib>
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/debugging/internal/stack_consumption.h"
>+#include "absl/memory/memory.h"
>+
>+namespace absl {
>+namespace debugging_internal {
>+namespace {
>+
>+// A wrapper function for Demangle() to make the unit test simple.
>+static const char *DemangleIt(const char * const mangled) {
>+  static char demangled[4096];
>+  if (Demangle(mangled, demangled, sizeof(demangled))) {
>+    return demangled;
>+  } else {
>+    return mangled;
>+  }
>+}
>+
>+// Test corner cases of bounary conditions.
>+TEST(Demangle, CornerCases) {
>+  char tmp[10];
>+  EXPECT_TRUE(Demangle("_Z6foobarv", tmp, sizeof(tmp)));
>+  // sizeof("foobar()") == 9
>+  EXPECT_STREQ("foobar()", tmp);
>+  EXPECT_TRUE(Demangle("_Z6foobarv", tmp, 9));
>+  EXPECT_STREQ("foobar()", tmp);
>+  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 8));  // Not enough.
>+  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 1));
>+  EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 0));
>+  EXPECT_FALSE(Demangle("_Z6foobarv", nullptr, 0));  // Should not cause SEGV.
>+  EXPECT_FALSE(Demangle("_Z1000000", tmp, 9));
>+}
>+
>+// Test handling of functions suffixed with .clone.N, which is used
>+// by GCC 4.5.x (and our locally-modified version of GCC 4.4.x), and
>+// .constprop.N and .isra.N, which are used by GCC 4.6.x.  These
>+// suffixes are used to indicate functions which have been cloned
>+// during optimization.  We ignore these suffixes.
>+TEST(Demangle, Clones) {
>+  char tmp[20];
>+  EXPECT_TRUE(Demangle("_ZL3Foov", tmp, sizeof(tmp)));
>+  EXPECT_STREQ("Foo()", tmp);
>+  EXPECT_TRUE(Demangle("_ZL3Foov.clone.3", tmp, sizeof(tmp)));
>+  EXPECT_STREQ("Foo()", tmp);
>+  EXPECT_TRUE(Demangle("_ZL3Foov.constprop.80", tmp, sizeof(tmp)));
>+  EXPECT_STREQ("Foo()", tmp);
>+  EXPECT_TRUE(Demangle("_ZL3Foov.isra.18", tmp, sizeof(tmp)));
>+  EXPECT_STREQ("Foo()", tmp);
>+  EXPECT_TRUE(Demangle("_ZL3Foov.isra.2.constprop.18", tmp, sizeof(tmp)));
>+  EXPECT_STREQ("Foo()", tmp);
>+  // Invalid (truncated), should not demangle.
>+  EXPECT_FALSE(Demangle("_ZL3Foov.clo", tmp, sizeof(tmp)));
>+  // Invalid (.clone. not followed by number), should not demangle.
>+  EXPECT_FALSE(Demangle("_ZL3Foov.clone.", tmp, sizeof(tmp)));
>+  // Invalid (.clone. followed by non-number), should not demangle.
>+  EXPECT_FALSE(Demangle("_ZL3Foov.clone.foo", tmp, sizeof(tmp)));
>+  // Invalid (.constprop. not followed by number), should not demangle.
>+  EXPECT_FALSE(Demangle("_ZL3Foov.isra.2.constprop.", tmp, sizeof(tmp)));
>+}
>+
>+// Tests that verify that Demangle footprint is within some limit.
>+// They are not to be run under sanitizers as the sanitizers increase
>+// stack consumption by about 4x.
>+#if defined(ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION) && \
>+    !ADDRESS_SANITIZER && !MEMORY_SANITIZER && !THREAD_SANITIZER
>+
>+static const char *g_mangled;
>+static char g_demangle_buffer[4096];
>+static char *g_demangle_result;
>+
>+static void DemangleSignalHandler(int signo) {
>+  if (Demangle(g_mangled, g_demangle_buffer, sizeof(g_demangle_buffer))) {
>+    g_demangle_result = g_demangle_buffer;
>+  } else {
>+    g_demangle_result = nullptr;
>+  }
>+}
>+
>+// Call Demangle and figure out the stack footprint of this call.
>+static const char *DemangleStackConsumption(const char *mangled,
>+                                            int *stack_consumed) {
>+  g_mangled = mangled;
>+  *stack_consumed = GetSignalHandlerStackConsumption(DemangleSignalHandler);
>+  ABSL_RAW_LOG(INFO, "Stack consumption of Demangle: %d", *stack_consumed);
>+  return g_demangle_result;
>+}
>+
>+// Demangle stack consumption should be within 8kB for simple mangled names
>+// with some level of nesting. With alternate signal stack we have 64K,
>+// but some signal handlers run on thread stack, and could have arbitrarily
>+// little space left (so we don't want to make this number too large).
>+const int kStackConsumptionUpperLimit = 8192;
>+
>+// Returns a mangled name nested to the given depth.
>+static std::string NestedMangledName(int depth) {
>+  std::string mangled_name = "_Z1a";
>+  if (depth > 0) {
>+    mangled_name += "IXL";
>+    mangled_name += NestedMangledName(depth - 1);
>+    mangled_name += "EEE";
>+  }
>+  return mangled_name;
>+}
>+
>+TEST(Demangle, DemangleStackConsumption) {
>+  // Measure stack consumption of Demangle for nested mangled names of varying
>+  // depth.  Since Demangle is implemented as a recursive descent parser,
>+  // stack consumption will grow as the nesting depth increases.  By measuring
>+  // the stack consumption for increasing depths, we can see the growing
>+  // impact of any stack-saving changes made to the code for Demangle.
>+  int stack_consumed = 0;
>+
>+  const char *demangled =
>+      DemangleStackConsumption("_Z6foobarv", &stack_consumed);
>+  EXPECT_STREQ("foobar()", demangled);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
>+
>+  const std::string nested_mangled_name0 = NestedMangledName(0);
>+  demangled = DemangleStackConsumption(nested_mangled_name0.c_str(),
>+                                       &stack_consumed);
>+  EXPECT_STREQ("a", demangled);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
>+
>+  const std::string nested_mangled_name1 = NestedMangledName(1);
>+  demangled = DemangleStackConsumption(nested_mangled_name1.c_str(),
>+                                       &stack_consumed);
>+  EXPECT_STREQ("a<>", demangled);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
>+
>+  const std::string nested_mangled_name2 = NestedMangledName(2);
>+  demangled = DemangleStackConsumption(nested_mangled_name2.c_str(),
>+                                       &stack_consumed);
>+  EXPECT_STREQ("a<>", demangled);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
>+
>+  const std::string nested_mangled_name3 = NestedMangledName(3);
>+  demangled = DemangleStackConsumption(nested_mangled_name3.c_str(),
>+                                       &stack_consumed);
>+  EXPECT_STREQ("a<>", demangled);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
>+}
>+
>+#endif  // Stack consumption tests
>+
>+static void TestOnInput(const char* input) {
>+  static const int kOutSize = 1048576;
>+  auto out = absl::make_unique<char[]>(kOutSize);
>+  Demangle(input, out.get(), kOutSize);
>+}
>+
>+TEST(DemangleRegression, NegativeLength) {
>+  TestOnInput("_ZZn4");
>+}
>+TEST(DemangleRegression, DeeplyNestedArrayType) {
>+  const int depth = 100000;
>+  std::string data = "_ZStI";
>+  data.reserve(data.size() + 3 * depth + 1);
>+  for (int i = 0; i < depth; i++) {
>+    data += "A1_";
>+  }
>+  TestOnInput(data.c_str());
>+}
>+
>+}  // namespace
>+}  // namespace debugging_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3f747e7f958ec12a6e5f1e2cdaa996806116d1ff
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.cc
>@@ -0,0 +1,380 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Allow dynamic symbol lookup in an in-memory Elf image.
>+//
>+
>+#include "absl/debugging/internal/elf_mem_image.h"
>+
>+#ifdef ABSL_HAVE_ELF_MEM_IMAGE  // defined in elf_mem_image.h
>+
>+#include <string.h>
>+#include <cassert>
>+#include <cstddef>
>+#include "absl/base/internal/raw_logging.h"
>+
>+// From binutils/include/elf/common.h (this doesn't appear to be documented
>+// anywhere else).
>+//
>+//   /* This flag appears in a Versym structure.  It means that the symbol
>+//      is hidden, and is only visible with an explicit version number.
>+//      This is a GNU extension.  */
>+//   #define VERSYM_HIDDEN           0x8000
>+//
>+//   /* This is the mask for the rest of the Versym information.  */
>+//   #define VERSYM_VERSION          0x7fff
>+
>+#define VERSYM_VERSION 0x7fff
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+namespace {
>+
>+#if __WORDSIZE == 32
>+const int kElfClass = ELFCLASS32;
>+int ElfBind(const ElfW(Sym) *symbol) { return ELF32_ST_BIND(symbol->st_info); }
>+int ElfType(const ElfW(Sym) *symbol) { return ELF32_ST_TYPE(symbol->st_info); }
>+#elif __WORDSIZE == 64
>+const int kElfClass = ELFCLASS64;
>+int ElfBind(const ElfW(Sym) *symbol) { return ELF64_ST_BIND(symbol->st_info); }
>+int ElfType(const ElfW(Sym) *symbol) { return ELF64_ST_TYPE(symbol->st_info); }
>+#else
>+const int kElfClass = -1;
>+int ElfBind(const ElfW(Sym) *) {
>+  ABSL_RAW_LOG(FATAL, "Unexpected word size");
>+  return 0;
>+}
>+int ElfType(const ElfW(Sym) *) {
>+  ABSL_RAW_LOG(FATAL, "Unexpected word size");
>+  return 0;
>+}
>+#endif
>+
>+// Extract an element from one of the ELF tables, cast it to desired type.
>+// This is just a simple arithmetic and a glorified cast.
>+// Callers are responsible for bounds checking.
>+template <typename T>
>+const T *GetTableElement(const ElfW(Ehdr) * ehdr, ElfW(Off) table_offset,
>+                         ElfW(Word) element_size, size_t index) {
>+  return reinterpret_cast<const T*>(reinterpret_cast<const char *>(ehdr)
>+                                    + table_offset
>+                                    + index * element_size);
>+}
>+
>+}  // namespace
>+
>+// The value of this variable doesn't matter; it's used only for its
>+// unique address.
>+const int ElfMemImage::kInvalidBaseSentinel = 0;
>+
>+ElfMemImage::ElfMemImage(const void *base) {
>+  ABSL_RAW_CHECK(base != kInvalidBase, "bad pointer");
>+  Init(base);
>+}
>+
>+int ElfMemImage::GetNumSymbols() const {
>+  if (!hash_) {
>+    return 0;
>+  }
>+  // See http://www.caldera.com/developers/gabi/latest/ch5.dynamic.html#hash
>+  return hash_[1];
>+}
>+
>+const ElfW(Sym) *ElfMemImage::GetDynsym(int index) const {
>+  ABSL_RAW_CHECK(index < GetNumSymbols(), "index out of range");
>+  return dynsym_ + index;
>+}
>+
>+const ElfW(Versym) *ElfMemImage::GetVersym(int index) const {
>+  ABSL_RAW_CHECK(index < GetNumSymbols(), "index out of range");
>+  return versym_ + index;
>+}
>+
>+const ElfW(Phdr) *ElfMemImage::GetPhdr(int index) const {
>+  ABSL_RAW_CHECK(index < ehdr_->e_phnum, "index out of range");
>+  return GetTableElement<ElfW(Phdr)>(ehdr_,
>+                                     ehdr_->e_phoff,
>+                                     ehdr_->e_phentsize,
>+                                     index);
>+}
>+
>+const char *ElfMemImage::GetDynstr(ElfW(Word) offset) const {
>+  ABSL_RAW_CHECK(offset < strsize_, "offset out of range");
>+  return dynstr_ + offset;
>+}
>+
>+const void *ElfMemImage::GetSymAddr(const ElfW(Sym) *sym) const {
>+  if (sym->st_shndx == SHN_UNDEF || sym->st_shndx >= SHN_LORESERVE) {
>+    // Symbol corresponds to "special" (e.g. SHN_ABS) section.
>+    return reinterpret_cast<const void *>(sym->st_value);
>+  }
>+  ABSL_RAW_CHECK(link_base_ < sym->st_value, "symbol out of range");
>+  return GetTableElement<char>(ehdr_, 0, 1, sym->st_value - link_base_);
>+}
>+
>+const ElfW(Verdef) *ElfMemImage::GetVerdef(int index) const {
>+  ABSL_RAW_CHECK(0 <= index && static_cast<size_t>(index) <= verdefnum_,
>+                 "index out of range");
>+  const ElfW(Verdef) *version_definition = verdef_;
>+  while (version_definition->vd_ndx < index && version_definition->vd_next) {
>+    const char *const version_definition_as_char =
>+        reinterpret_cast<const char *>(version_definition);
>+    version_definition =
>+        reinterpret_cast<const ElfW(Verdef) *>(version_definition_as_char +
>+                                               version_definition->vd_next);
>+  }
>+  return version_definition->vd_ndx == index ? version_definition : nullptr;
>+}
>+
>+const ElfW(Verdaux) *ElfMemImage::GetVerdefAux(
>+    const ElfW(Verdef) *verdef) const {
>+  return reinterpret_cast<const ElfW(Verdaux) *>(verdef+1);
>+}
>+
>+const char *ElfMemImage::GetVerstr(ElfW(Word) offset) const {
>+  ABSL_RAW_CHECK(offset < strsize_, "offset out of range");
>+  return dynstr_ + offset;
>+}
>+
>+void ElfMemImage::Init(const void *base) {
>+  ehdr_      = nullptr;
>+  dynsym_    = nullptr;
>+  dynstr_    = nullptr;
>+  versym_    = nullptr;
>+  verdef_    = nullptr;
>+  hash_      = nullptr;
>+  strsize_   = 0;
>+  verdefnum_ = 0;
>+  link_base_ = ~0L;  // Sentinel: PT_LOAD .p_vaddr can't possibly be this.
>+  if (!base) {
>+    return;
>+  }
>+  const char *const base_as_char = reinterpret_cast<const char *>(base);
>+  if (base_as_char[EI_MAG0] != ELFMAG0 || base_as_char[EI_MAG1] != ELFMAG1 ||
>+      base_as_char[EI_MAG2] != ELFMAG2 || base_as_char[EI_MAG3] != ELFMAG3) {
>+    assert(false);
>+    return;
>+  }
>+  int elf_class = base_as_char[EI_CLASS];
>+  if (elf_class != kElfClass) {
>+    assert(false);
>+    return;
>+  }
>+  switch (base_as_char[EI_DATA]) {
>+    case ELFDATA2LSB: {
>+      if (__LITTLE_ENDIAN != __BYTE_ORDER) {
>+        assert(false);
>+        return;
>+      }
>+      break;
>+    }
>+    case ELFDATA2MSB: {
>+      if (__BIG_ENDIAN != __BYTE_ORDER) {
>+        assert(false);
>+        return;
>+      }
>+      break;
>+    }
>+    default: {
>+      assert(false);
>+      return;
>+    }
>+  }
>+
>+  ehdr_ = reinterpret_cast<const ElfW(Ehdr) *>(base);
>+  const ElfW(Phdr) *dynamic_program_header = nullptr;
>+  for (int i = 0; i < ehdr_->e_phnum; ++i) {
>+    const ElfW(Phdr) *const program_header = GetPhdr(i);
>+    switch (program_header->p_type) {
>+      case PT_LOAD:
>+        if (!~link_base_) {
>+          link_base_ = program_header->p_vaddr;
>+        }
>+        break;
>+      case PT_DYNAMIC:
>+        dynamic_program_header = program_header;
>+        break;
>+    }
>+  }
>+  if (!~link_base_ || !dynamic_program_header) {
>+    assert(false);
>+    // Mark this image as not present. Can not recur infinitely.
>+    Init(nullptr);
>+    return;
>+  }
>+  ptrdiff_t relocation =
>+      base_as_char - reinterpret_cast<const char *>(link_base_);
>+  ElfW(Dyn) *dynamic_entry =
>+      reinterpret_cast<ElfW(Dyn) *>(dynamic_program_header->p_vaddr +
>+                                    relocation);
>+  for (; dynamic_entry->d_tag != DT_NULL; ++dynamic_entry) {
>+    const ElfW(Xword) value = dynamic_entry->d_un.d_val + relocation;
>+    switch (dynamic_entry->d_tag) {
>+      case DT_HASH:
>+        hash_ = reinterpret_cast<ElfW(Word) *>(value);
>+        break;
>+      case DT_SYMTAB:
>+        dynsym_ = reinterpret_cast<ElfW(Sym) *>(value);
>+        break;
>+      case DT_STRTAB:
>+        dynstr_ = reinterpret_cast<const char *>(value);
>+        break;
>+      case DT_VERSYM:
>+        versym_ = reinterpret_cast<ElfW(Versym) *>(value);
>+        break;
>+      case DT_VERDEF:
>+        verdef_ = reinterpret_cast<ElfW(Verdef) *>(value);
>+        break;
>+      case DT_VERDEFNUM:
>+        verdefnum_ = dynamic_entry->d_un.d_val;
>+        break;
>+      case DT_STRSZ:
>+        strsize_ = dynamic_entry->d_un.d_val;
>+        break;
>+      default:
>+        // Unrecognized entries explicitly ignored.
>+        break;
>+    }
>+  }
>+  if (!hash_ || !dynsym_ || !dynstr_ || !versym_ ||
>+      !verdef_ || !verdefnum_ || !strsize_) {
>+    assert(false);  // invalid VDSO
>+    // Mark this image as not present. Can not recur infinitely.
>+    Init(nullptr);
>+    return;
>+  }
>+}
>+
>+bool ElfMemImage::LookupSymbol(const char *name,
>+                               const char *version,
>+                               int type,
>+                               SymbolInfo *info_out) const {
>+  for (const SymbolInfo& info : *this) {
>+    if (strcmp(info.name, name) == 0 && strcmp(info.version, version) == 0 &&
>+        ElfType(info.symbol) == type) {
>+      if (info_out) {
>+        *info_out = info;
>+      }
>+      return true;
>+    }
>+  }
>+  return false;
>+}
>+
>+bool ElfMemImage::LookupSymbolByAddress(const void *address,
>+                                        SymbolInfo *info_out) const {
>+  for (const SymbolInfo& info : *this) {
>+    const char *const symbol_start =
>+        reinterpret_cast<const char *>(info.address);
>+    const char *const symbol_end = symbol_start + info.symbol->st_size;
>+    if (symbol_start <= address && address < symbol_end) {
>+      if (info_out) {
>+        // Client wants to know details for that symbol (the usual case).
>+        if (ElfBind(info.symbol) == STB_GLOBAL) {
>+          // Strong symbol; just return it.
>+          *info_out = info;
>+          return true;
>+        } else {
>+          // Weak or local. Record it, but keep looking for a strong one.
>+          *info_out = info;
>+        }
>+      } else {
>+        // Client only cares if there is an overlapping symbol.
>+        return true;
>+      }
>+    }
>+  }
>+  return false;
>+}
>+
>+ElfMemImage::SymbolIterator::SymbolIterator(const void *const image, int index)
>+    : index_(index), image_(image) {
>+}
>+
>+const ElfMemImage::SymbolInfo *ElfMemImage::SymbolIterator::operator->() const {
>+  return &info_;
>+}
>+
>+const ElfMemImage::SymbolInfo& ElfMemImage::SymbolIterator::operator*() const {
>+  return info_;
>+}
>+
>+bool ElfMemImage::SymbolIterator::operator==(const SymbolIterator &rhs) const {
>+  return this->image_ == rhs.image_ && this->index_ == rhs.index_;
>+}
>+
>+bool ElfMemImage::SymbolIterator::operator!=(const SymbolIterator &rhs) const {
>+  return !(*this == rhs);
>+}
>+
>+ElfMemImage::SymbolIterator &ElfMemImage::SymbolIterator::operator++() {
>+  this->Update(1);
>+  return *this;
>+}
>+
>+ElfMemImage::SymbolIterator ElfMemImage::begin() const {
>+  SymbolIterator it(this, 0);
>+  it.Update(0);
>+  return it;
>+}
>+
>+ElfMemImage::SymbolIterator ElfMemImage::end() const {
>+  return SymbolIterator(this, GetNumSymbols());
>+}
>+
>+void ElfMemImage::SymbolIterator::Update(int increment) {
>+  const ElfMemImage *image = reinterpret_cast<const ElfMemImage *>(image_);
>+  ABSL_RAW_CHECK(image->IsPresent() || increment == 0, "");
>+  if (!image->IsPresent()) {
>+    return;
>+  }
>+  index_ += increment;
>+  if (index_ >= image->GetNumSymbols()) {
>+    index_ = image->GetNumSymbols();
>+    return;
>+  }
>+  const ElfW(Sym)    *symbol = image->GetDynsym(index_);
>+  const ElfW(Versym) *version_symbol = image->GetVersym(index_);
>+  ABSL_RAW_CHECK(symbol && version_symbol, "");
>+  const char *const symbol_name = image->GetDynstr(symbol->st_name);
>+  const ElfW(Versym) version_index = version_symbol[0] & VERSYM_VERSION;
>+  const ElfW(Verdef) *version_definition = nullptr;
>+  const char *version_name = "";
>+  if (symbol->st_shndx == SHN_UNDEF) {
>+    // Undefined symbols reference DT_VERNEED, not DT_VERDEF, and
>+    // version_index could well be greater than verdefnum_, so calling
>+    // GetVerdef(version_index) may trigger assertion.
>+  } else {
>+    version_definition = image->GetVerdef(version_index);
>+  }
>+  if (version_definition) {
>+    // I am expecting 1 or 2 auxiliary entries: 1 for the version itself,
>+    // optional 2nd if the version has a parent.
>+    ABSL_RAW_CHECK(
>+        version_definition->vd_cnt == 1 || version_definition->vd_cnt == 2,
>+        "wrong number of entries");
>+    const ElfW(Verdaux) *version_aux = image->GetVerdefAux(version_definition);
>+    version_name = image->GetVerstr(version_aux->vda_name);
>+  }
>+  info_.name    = symbol_name;
>+  info_.version = version_name;
>+  info_.address = image->GetSymAddr(symbol);
>+  info_.symbol  = symbol;
>+}
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_ELF_MEM_IMAGE
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3b577268954337d4b1525086ad84db7944e366b9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.h
>@@ -0,0 +1,130 @@
>+/*
>+ * Copyright 2017 The Abseil Authors.
>+ *
>+ * Licensed under the Apache License, Version 2.0 (the "License");
>+ * you may not use this file except in compliance with the License.
>+ * You may obtain a copy of the License at
>+ *
>+ *      http://www.apache.org/licenses/LICENSE-2.0
>+ *
>+ * Unless required by applicable law or agreed to in writing, software
>+ * distributed under the License is distributed on an "AS IS" BASIS,
>+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+ * See the License for the specific language governing permissions and
>+ * limitations under the License.
>+ */
>+
>+// Allow dynamic symbol lookup for in-memory Elf images.
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_ELF_MEM_IMAGE_H_
>+#define ABSL_DEBUGGING_INTERNAL_ELF_MEM_IMAGE_H_
>+
>+// Including this will define the __GLIBC__ macro if glibc is being
>+// used.
>+#include <climits>
>+
>+// Maybe one day we can rewrite this file not to require the elf
>+// symbol extensions in glibc, but for right now we need them.
>+#ifdef ABSL_HAVE_ELF_MEM_IMAGE
>+#error ABSL_HAVE_ELF_MEM_IMAGE cannot be directly set
>+#endif
>+
>+#if defined(__ELF__) && defined(__GLIBC__) && !defined(__native_client__) && \
>+    !defined(__asmjs__) && !defined(__wasm__)
>+#define ABSL_HAVE_ELF_MEM_IMAGE 1
>+#endif
>+
>+#if ABSL_HAVE_ELF_MEM_IMAGE
>+
>+#include <link.h>  // for ElfW
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// An in-memory ELF image (may not exist on disk).
>+class ElfMemImage {
>+ private:
>+  // Sentinel: there could never be an elf image at &kInvalidBaseSentinel.
>+  static const int kInvalidBaseSentinel;
>+
>+ public:
>+  // Sentinel: there could never be an elf image at this address.
>+  static constexpr const void *const kInvalidBase =
>+    static_cast<const void*>(&kInvalidBaseSentinel);
>+
>+  // Information about a single vdso symbol.
>+  // All pointers are into .dynsym, .dynstr, or .text of the VDSO.
>+  // Do not free() them or modify through them.
>+  struct SymbolInfo {
>+    const char      *name;      // E.g. "__vdso_getcpu"
>+    const char      *version;   // E.g. "LINUX_2.6", could be ""
>+                                // for unversioned symbol.
>+    const void      *address;   // Relocated symbol address.
>+    const ElfW(Sym) *symbol;    // Symbol in the dynamic symbol table.
>+  };
>+
>+  // Supports iteration over all dynamic symbols.
>+  class SymbolIterator {
>+   public:
>+    friend class ElfMemImage;
>+    const SymbolInfo *operator->() const;
>+    const SymbolInfo &operator*() const;
>+    SymbolIterator& operator++();
>+    bool operator!=(const SymbolIterator &rhs) const;
>+    bool operator==(const SymbolIterator &rhs) const;
>+   private:
>+    SymbolIterator(const void *const image, int index);
>+    void Update(int incr);
>+    SymbolInfo info_;
>+    int index_;
>+    const void *const image_;
>+  };
>+
>+
>+  explicit ElfMemImage(const void *base);
>+  void                 Init(const void *base);
>+  bool                 IsPresent() const { return ehdr_ != nullptr; }
>+  const ElfW(Phdr)*    GetPhdr(int index) const;
>+  const ElfW(Sym)*     GetDynsym(int index) const;
>+  const ElfW(Versym)*  GetVersym(int index) const;
>+  const ElfW(Verdef)*  GetVerdef(int index) const;
>+  const ElfW(Verdaux)* GetVerdefAux(const ElfW(Verdef) *verdef) const;
>+  const char*          GetDynstr(ElfW(Word) offset) const;
>+  const void*          GetSymAddr(const ElfW(Sym) *sym) const;
>+  const char*          GetVerstr(ElfW(Word) offset) const;
>+  int                  GetNumSymbols() const;
>+
>+  SymbolIterator begin() const;
>+  SymbolIterator end() const;
>+
>+  // Look up versioned dynamic symbol in the image.
>+  // Returns false if image is not present, or doesn't contain given
>+  // symbol/version/type combination.
>+  // If info_out is non-null, additional details are filled in.
>+  bool LookupSymbol(const char *name, const char *version,
>+                    int symbol_type, SymbolInfo *info_out) const;
>+
>+  // Find info about symbol (if any) which overlaps given address.
>+  // Returns true if symbol was found; false if image isn't present
>+  // or doesn't have a symbol overlapping given address.
>+  // If info_out is non-null, additional details are filled in.
>+  bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const;
>+
>+ private:
>+  const ElfW(Ehdr) *ehdr_;
>+  const ElfW(Sym) *dynsym_;
>+  const ElfW(Versym) *versym_;
>+  const ElfW(Verdef) *verdef_;
>+  const ElfW(Word) *hash_;
>+  const char *dynstr_;
>+  size_t strsize_;
>+  size_t verdefnum_;
>+  ElfW(Addr) link_base_;     // Link-time base (p_vaddr of first PT_LOAD).
>+};
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_ELF_MEM_IMAGE
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_ELF_MEM_IMAGE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..faf888367356fef22340f534b15be5690ae71f2e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc
>@@ -0,0 +1,153 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#include "absl/debugging/internal/examine_stack.h"
>+
>+#ifndef _WIN32
>+#include <unistd.h>
>+#endif
>+
>+#include <csignal>
>+#include <cstdio>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/macros.h"
>+#include "absl/debugging/stacktrace.h"
>+#include "absl/debugging/symbolize.h"
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Returns the program counter from signal context, nullptr if
>+// unknown. vuc is a ucontext_t*. We use void* to avoid the use of
>+// ucontext_t on non-POSIX systems.
>+void* GetProgramCounter(void* vuc) {
>+#ifdef __linux__
>+  if (vuc != nullptr) {
>+    ucontext_t* context = reinterpret_cast<ucontext_t*>(vuc);
>+#if defined(__aarch64__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.pc);
>+#elif defined(__arm__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.arm_pc);
>+#elif defined(__i386__)
>+    if (14 < ABSL_ARRAYSIZE(context->uc_mcontext.gregs))
>+      return reinterpret_cast<void*>(context->uc_mcontext.gregs[14]);
>+#elif defined(__mips__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.pc);
>+#elif defined(__powerpc64__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.gp_regs[32]);
>+#elif defined(__powerpc__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.regs->nip);
>+#elif defined(__s390__) && !defined(__s390x__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.psw.addr & 0x7fffffff);
>+#elif defined(__s390__) && defined(__s390x__)
>+    return reinterpret_cast<void*>(context->uc_mcontext.psw.addr);
>+#elif defined(__x86_64__)
>+    if (16 < ABSL_ARRAYSIZE(context->uc_mcontext.gregs))
>+      return reinterpret_cast<void*>(context->uc_mcontext.gregs[16]);
>+#else
>+#error "Undefined Architecture."
>+#endif
>+  }
>+#elif defined(__akaros__)
>+  auto* ctx = reinterpret_cast<struct user_context*>(vuc);
>+  return reinterpret_cast<void*>(get_user_ctx_pc(ctx));
>+#endif
>+  static_cast<void>(vuc);
>+  return nullptr;
>+}
>+
>+// The %p field width for printf() functions is two characters per byte,
>+// and two extra for the leading "0x".
>+static constexpr int kPrintfPointerFieldWidth = 2 + 2 * sizeof(void*);
>+
>+// Print a program counter, its stack frame size, and its symbol name.
>+// Note that there is a separate symbolize_pc argument. Return addresses may be
>+// at the end of the function, and this allows the caller to back up from pc if
>+// appropriate.
>+static void DumpPCAndFrameSizeAndSymbol(void (*writerfn)(const char*, void*),
>+                                        void* writerfn_arg, void* pc,
>+                                        void* symbolize_pc, int framesize,
>+                                        const char* const prefix) {
>+  char tmp[1024];
>+  const char* symbol = "(unknown)";
>+  if (absl::Symbolize(symbolize_pc, tmp, sizeof(tmp))) {
>+    symbol = tmp;
>+  }
>+  char buf[1024];
>+  if (framesize <= 0) {
>+    snprintf(buf, sizeof(buf), "%s@ %*p  (unknown)  %s\n", prefix,
>+             kPrintfPointerFieldWidth, pc, symbol);
>+  } else {
>+    snprintf(buf, sizeof(buf), "%s@ %*p  %9d  %s\n", prefix,
>+             kPrintfPointerFieldWidth, pc, framesize, symbol);
>+  }
>+  writerfn(buf, writerfn_arg);
>+}
>+
>+// Print a program counter and the corresponding stack frame size.
>+static void DumpPCAndFrameSize(void (*writerfn)(const char*, void*),
>+                               void* writerfn_arg, void* pc, int framesize,
>+                               const char* const prefix) {
>+  char buf[100];
>+  if (framesize <= 0) {
>+    snprintf(buf, sizeof(buf), "%s@ %*p  (unknown)\n", prefix,
>+             kPrintfPointerFieldWidth, pc);
>+  } else {
>+    snprintf(buf, sizeof(buf), "%s@ %*p  %9d\n", prefix,
>+             kPrintfPointerFieldWidth, pc, framesize);
>+  }
>+  writerfn(buf, writerfn_arg);
>+}
>+
>+void DumpPCAndFrameSizesAndStackTrace(
>+    void* pc, void* const stack[], int frame_sizes[], int depth,
>+    int min_dropped_frames, bool symbolize_stacktrace,
>+    void (*writerfn)(const char*, void*), void* writerfn_arg) {
>+  if (pc != nullptr) {
>+    // We don't know the stack frame size for PC, use 0.
>+    if (symbolize_stacktrace) {
>+      DumpPCAndFrameSizeAndSymbol(writerfn, writerfn_arg, pc, pc, 0, "PC: ");
>+    } else {
>+      DumpPCAndFrameSize(writerfn, writerfn_arg, pc, 0, "PC: ");
>+    }
>+  }
>+  for (int i = 0; i < depth; i++) {
>+    if (symbolize_stacktrace) {
>+      // Pass the previous address of pc as the symbol address because pc is a
>+      // return address, and an overrun may occur when the function ends with a
>+      // call to a function annotated noreturn (e.g. CHECK). Note that we don't
>+      // do this for pc above, as the adjustment is only correct for return
>+      // addresses.
>+      DumpPCAndFrameSizeAndSymbol(writerfn, writerfn_arg, stack[i],
>+                                  reinterpret_cast<char*>(stack[i]) - 1,
>+                                  frame_sizes[i], "    ");
>+    } else {
>+      DumpPCAndFrameSize(writerfn, writerfn_arg, stack[i], frame_sizes[i],
>+                         "    ");
>+    }
>+  }
>+  if (min_dropped_frames > 0) {
>+    char buf[100];
>+    snprintf(buf, sizeof(buf), "    @ ... and at least %d more frames\n",
>+             min_dropped_frames);
>+    writerfn(buf, writerfn_arg);
>+  }
>+}
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a16c03b2748f6861e8e1543a153b0c5dfdc0aa01
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/examine_stack.h
>@@ -0,0 +1,38 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
>+#define ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Returns the program counter from signal context, or nullptr if
>+// unknown. `vuc` is a ucontext_t*. We use void* to avoid the use of
>+// ucontext_t on non-POSIX systems.
>+void* GetProgramCounter(void* vuc);
>+
>+// Uses `writerfn` to dump the program counter, stack trace, and stack
>+// frame sizes.
>+void DumpPCAndFrameSizesAndStackTrace(
>+    void* pc, void* const stack[], int frame_sizes[], int depth,
>+    int min_dropped_frames, bool symbolize_stacktrace,
>+    void (*writerfn)(const char*, void*), void* writerfn_arg);
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_EXAMINE_STACK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2b3b972ea53902c195de5a1a9dc9579718a170b3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.cc
>@@ -0,0 +1,172 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/debugging/internal/stack_consumption.h"
>+
>+#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+
>+#include <signal.h>
>+#include <sys/mman.h>
>+#include <unistd.h>
>+
>+#include <string.h>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+namespace debugging_internal {
>+namespace {
>+
>+// This code requires that we know the direction in which the stack
>+// grows. It is commonly believed that this can be detected by putting
>+// a variable on the stack and then passing its address to a function
>+// that compares the address of this variable to the address of a
>+// variable on the function's own stack. However, this is unspecified
>+// behavior in C++: If two pointers p and q of the same type point to
>+// different objects that are not members of the same object or
>+// elements of the same array or to different functions, or if only
>+// one of them is null, the results of p<q, p>q, p<=q, and p>=q are
>+// unspecified. Therefore, instead we hardcode the direction of the
>+// stack on platforms we know about.
>+#if defined(__i386__) || defined(__x86_64__) || defined(__ppc__)
>+constexpr bool kStackGrowsDown = true;
>+#else
>+#error Need to define kStackGrowsDown
>+#endif
>+
>+// To measure the stack footprint of some code, we create a signal handler
>+// (for SIGUSR2 say) that exercises this code on an alternate stack. This
>+// alternate stack is initialized to some known pattern (0x55, 0x55, 0x55,
>+// ...). We then self-send this signal, and after the signal handler returns,
>+// look at the alternate stack buffer to see what portion has been touched.
>+//
>+// This trick gives us the the stack footprint of the signal handler.  But the
>+// signal handler, even before the code for it is exercised, consumes some
>+// stack already. We however only want the stack usage of the code inside the
>+// signal handler. To measure this accurately, we install two signal handlers:
>+// one that does nothing and just returns, and the user-provided signal
>+// handler. The difference between the stack consumption of these two signals
>+// handlers should give us the stack foorprint of interest.
>+
>+void EmptySignalHandler(int) {}
>+
>+// This is arbitrary value, and could be increase further, at the cost of
>+// memset()ting it all to known sentinel value.
>+constexpr int kAlternateStackSize = 64 << 10;  // 64KiB
>+
>+constexpr int kSafetyMargin = 32;
>+constexpr char kAlternateStackFillValue = 0x55;
>+
>+// These helper functions look at the alternate stack buffer, and figure
>+// out what portion of this buffer has been touched - this is the stack
>+// consumption of the signal handler running on this alternate stack.
>+// This function will return -1 if the alternate stack buffer has not been
>+// touched. It will abort the program if the buffer has overflowed or is about
>+// to overflow.
>+int GetStackConsumption(const void* const altstack) {
>+  const char* begin;
>+  int increment;
>+  if (kStackGrowsDown) {
>+    begin = reinterpret_cast<const char*>(altstack);
>+    increment = 1;
>+  } else {
>+    begin = reinterpret_cast<const char*>(altstack) + kAlternateStackSize - 1;
>+    increment = -1;
>+  }
>+
>+  for (int usage_count = kAlternateStackSize; usage_count > 0; --usage_count) {
>+    if (*begin != kAlternateStackFillValue) {
>+      ABSL_RAW_CHECK(usage_count <= kAlternateStackSize - kSafetyMargin,
>+                     "Buffer has overflowed or is about to overflow");
>+      return usage_count;
>+    }
>+    begin += increment;
>+  }
>+
>+  ABSL_RAW_LOG(FATAL, "Unreachable code");
>+  return -1;
>+}
>+
>+}  // namespace
>+
>+int GetSignalHandlerStackConsumption(void (*signal_handler)(int)) {
>+  // The alt-signal-stack cannot be heap allocated because there is a
>+  // bug in glibc-2.2 where some signal handler setup code looks at the
>+  // current stack pointer to figure out what thread is currently running.
>+  // Therefore, the alternate stack must be allocated from the main stack
>+  // itself.
>+  void* altstack = mmap(nullptr, kAlternateStackSize, PROT_READ | PROT_WRITE,
>+                        MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
>+  ABSL_RAW_CHECK(altstack != MAP_FAILED, "mmap() failed");
>+
>+  // Set up the alt-signal-stack (and save the older one).
>+  stack_t sigstk;
>+  memset(&sigstk, 0, sizeof(sigstk));
>+  stack_t old_sigstk;
>+  sigstk.ss_sp = altstack;
>+  sigstk.ss_size = kAlternateStackSize;
>+  sigstk.ss_flags = 0;
>+  ABSL_RAW_CHECK(sigaltstack(&sigstk, &old_sigstk) == 0,
>+                 "sigaltstack() failed");
>+
>+  // Set up SIGUSR1 and SIGUSR2 signal handlers (and save the older ones).
>+  struct sigaction sa;
>+  memset(&sa, 0, sizeof(sa));
>+  struct sigaction old_sa1, old_sa2;
>+  sigemptyset(&sa.sa_mask);
>+  sa.sa_flags = SA_ONSTACK;
>+
>+  // SIGUSR1 maps to EmptySignalHandler.
>+  sa.sa_handler = EmptySignalHandler;
>+  ABSL_RAW_CHECK(sigaction(SIGUSR1, &sa, &old_sa1) == 0, "sigaction() failed");
>+
>+  // SIGUSR2 maps to signal_handler.
>+  sa.sa_handler = signal_handler;
>+  ABSL_RAW_CHECK(sigaction(SIGUSR2, &sa, &old_sa2) == 0, "sigaction() failed");
>+
>+  // Send SIGUSR1 signal and measure the stack consumption of the empty
>+  // signal handler.
>+  // The first signal might use more stack space. Run once and ignore the
>+  // results to get that out of the way.
>+  ABSL_RAW_CHECK(kill(getpid(), SIGUSR1) == 0, "kill() failed");
>+
>+  memset(altstack, kAlternateStackFillValue, kAlternateStackSize);
>+  ABSL_RAW_CHECK(kill(getpid(), SIGUSR1) == 0, "kill() failed");
>+  int base_stack_consumption = GetStackConsumption(altstack);
>+
>+  // Send SIGUSR2 signal and measure the stack consumption of signal_handler.
>+  ABSL_RAW_CHECK(kill(getpid(), SIGUSR2) == 0, "kill() failed");
>+  int signal_handler_stack_consumption = GetStackConsumption(altstack);
>+
>+  // Now restore the old alt-signal-stack and signal handlers.
>+  ABSL_RAW_CHECK(sigaltstack(&old_sigstk, nullptr) == 0,
>+                 "sigaltstack() failed");
>+  ABSL_RAW_CHECK(sigaction(SIGUSR1, &old_sa1, nullptr) == 0,
>+                 "sigaction() failed");
>+  ABSL_RAW_CHECK(sigaction(SIGUSR2, &old_sa2, nullptr) == 0,
>+                 "sigaction() failed");
>+
>+  ABSL_RAW_CHECK(munmap(altstack, kAlternateStackSize) == 0, "munmap() failed");
>+  if (signal_handler_stack_consumption != -1 && base_stack_consumption != -1) {
>+    return signal_handler_stack_consumption - base_stack_consumption;
>+  }
>+  return -1;
>+}
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..4c5fa0f0d821d4963e34a82d458d02c04e566803
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption.h
>@@ -0,0 +1,45 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Helper function for measuring stack consumption of signal handlers.
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
>+
>+// The code in this module is not portable.
>+// Use this feature test macro to detect its availability.
>+#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+#error ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION cannot be set directly
>+#elif !defined(__APPLE__) && !defined(_WIN32) && \
>+    (defined(__i386__) || defined(__x86_64__) || defined(__ppc__))
>+#define ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION 1
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Returns the stack consumption in bytes for the code exercised by
>+// signal_handler.  To measure stack consumption, signal_handler is registered
>+// as a signal handler, so the code that it exercises must be async-signal
>+// safe.  The argument of signal_handler is an implementation detail of signal
>+// handlers and should ignored by the code for signal_handler.  Use global
>+// variables to pass information between your test code and signal_handler.
>+int GetSignalHandlerStackConsumption(void (*signal_handler)(int));
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..5ce3846ec44971590c342c48c6776a16e71cac8c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stack_consumption_test.cc
>@@ -0,0 +1,48 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/debugging/internal/stack_consumption.h"
>+
>+#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+
>+#include <string.h>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+namespace debugging_internal {
>+namespace {
>+
>+static void SimpleSignalHandler(int signo) {
>+  char buf[100];
>+  memset(buf, 'a', sizeof(buf));
>+
>+  // Never true, but prevents compiler from optimizing buf out.
>+  if (signo == 0) {
>+    ABSL_RAW_LOG(INFO, "%p", static_cast<void*>(buf));
>+  }
>+}
>+
>+TEST(SignalHandlerStackConsumptionTest, MeasuresStackConsumption) {
>+  // Our handler should consume reasonable number of bytes.
>+  EXPECT_GE(GetSignalHandlerStackConsumption(SimpleSignalHandler), 100);
>+}
>+
>+}  // namespace
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_aarch64-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_aarch64-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7ed6b3eb82dc2f039ac08531c0b17eb1bb976ed9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_aarch64-inl.inc
>@@ -0,0 +1,190 @@
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_AARCH64_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_AARCH64_INL_H_
>+
>+// Generate stack tracer for aarch64
>+
>+#if defined(__linux__)
>+#include <sys/mman.h>
>+#include <ucontext.h>
>+#include <unistd.h>
>+#endif
>+
>+#include <atomic>
>+#include <cassert>
>+#include <cstdint>
>+#include <iostream>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/debugging/internal/address_is_readable.h"
>+#include "absl/debugging/internal/vdso_support.h"  // a no-op on non-elf or non-glibc systems
>+#include "absl/debugging/stacktrace.h"
>+
>+static const uintptr_t kUnknownFrameSize = 0;
>+
>+#if defined(__linux__)
>+// Returns the address of the VDSO __kernel_rt_sigreturn function, if present.
>+static const unsigned char* GetKernelRtSigreturnAddress() {
>+  constexpr uintptr_t kImpossibleAddress = 1;
>+  ABSL_CONST_INIT static std::atomic<uintptr_t> memoized{kImpossibleAddress};
>+  uintptr_t address = memoized.load(std::memory_order_relaxed);
>+  if (address != kImpossibleAddress) {
>+    return reinterpret_cast<const unsigned char*>(address);
>+  }
>+
>+  address = reinterpret_cast<uintptr_t>(nullptr);
>+
>+#ifdef ABSL_HAVE_VDSO_SUPPORT
>+  absl::debugging_internal::VDSOSupport vdso;
>+  if (vdso.IsPresent()) {
>+    absl::debugging_internal::VDSOSupport::SymbolInfo symbol_info;
>+    if (!vdso.LookupSymbol("__kernel_rt_sigreturn", "LINUX_2.6.39", STT_FUNC,
>+                           &symbol_info) ||
>+        symbol_info.address == nullptr) {
>+      // Unexpected: VDSO is present, yet the expected symbol is missing
>+      // or null.
>+      assert(false && "VDSO is present, but doesn't have expected symbol");
>+    } else {
>+      if (reinterpret_cast<uintptr_t>(symbol_info.address) !=
>+          kImpossibleAddress) {
>+        address = reinterpret_cast<uintptr_t>(symbol_info.address);
>+      } else {
>+        assert(false && "VDSO returned invalid address");
>+      }
>+    }
>+  }
>+#endif
>+
>+  memoized.store(address, std::memory_order_relaxed);
>+  return reinterpret_cast<const unsigned char*>(address);
>+}
>+#endif  // __linux__
>+
>+// Compute the size of a stack frame in [low..high).  We assume that
>+// low < high.  Return size of kUnknownFrameSize.
>+template<typename T>
>+static inline uintptr_t ComputeStackFrameSize(const T* low,
>+                                              const T* high) {
>+  const char* low_char_ptr = reinterpret_cast<const char *>(low);
>+  const char* high_char_ptr = reinterpret_cast<const char *>(high);
>+  return low < high ? high_char_ptr - low_char_ptr : kUnknownFrameSize;
>+}
>+
>+// Given a pointer to a stack frame, locate and return the calling
>+// stackframe, or return null if no stackframe can be found. Perform sanity
>+// checks (the strictness of which is controlled by the boolean parameter
>+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
>+template<bool STRICT_UNWINDING, bool WITH_CONTEXT>
>+static void **NextStackFrame(void **old_frame_pointer, const void *uc) {
>+  void **new_frame_pointer = reinterpret_cast<void**>(*old_frame_pointer);
>+  bool check_frame_size = true;
>+
>+#if defined(__linux__)
>+  if (WITH_CONTEXT && uc != nullptr) {
>+    // Check to see if next frame's return address is __kernel_rt_sigreturn.
>+    if (old_frame_pointer[1] == GetKernelRtSigreturnAddress()) {
>+      const ucontext_t *ucv = static_cast<const ucontext_t *>(uc);
>+      // old_frame_pointer[0] is not suitable for unwinding, look at
>+      // ucontext to discover frame pointer before signal.
>+      void **const pre_signal_frame_pointer =
>+          reinterpret_cast<void **>(ucv->uc_mcontext.regs[29]);
>+
>+      // Check that alleged frame pointer is actually readable. This is to
>+      // prevent "double fault" in case we hit the first fault due to e.g.
>+      // stack corruption.
>+      if (!absl::debugging_internal::AddressIsReadable(
>+              pre_signal_frame_pointer))
>+        return nullptr;
>+
>+      // Alleged frame pointer is readable, use it for further unwinding.
>+      new_frame_pointer = pre_signal_frame_pointer;
>+
>+      // Skip frame size check if we return from a signal. We may be using a
>+      // an alternate stack for signals.
>+      check_frame_size = false;
>+    }
>+  }
>+#endif
>+
>+  // aarch64 ABI requires stack pointer to be 16-byte-aligned.
>+  if ((reinterpret_cast<uintptr_t>(new_frame_pointer) & 15) != 0)
>+    return nullptr;
>+
>+  // Check frame size.  In strict mode, we assume frames to be under
>+  // 100,000 bytes.  In non-strict mode, we relax the limit to 1MB.
>+  if (check_frame_size) {
>+    const uintptr_t max_size = STRICT_UNWINDING ? 100000 : 1000000;
>+    const uintptr_t frame_size =
>+        ComputeStackFrameSize(old_frame_pointer, new_frame_pointer);
>+    if (frame_size == kUnknownFrameSize || frame_size > max_size)
>+      return nullptr;
>+  }
>+
>+  return new_frame_pointer;
>+}
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
>+                      const void *ucp, int *min_dropped_frames) {
>+#ifdef __GNUC__
>+  void **frame_pointer = reinterpret_cast<void**>(__builtin_frame_address(0));
>+#else
>+# error reading stack point not yet supported on this platform.
>+#endif
>+
>+  skip_count++;    // Skip the frame for this function.
>+  int n = 0;
>+
>+  // The frame pointer points to low address of a frame.  The first 64-bit
>+  // word of a frame points to the next frame up the call chain, which normally
>+  // is just after the high address of the current frame.  The second word of
>+  // a frame contains return adress of to the caller.   To find a pc value
>+  // associated with the current frame, we need to go down a level in the call
>+  // chain.  So we remember return the address of the last frame seen.  This
>+  // does not work for the first stack frame, which belongs to UnwindImp() but
>+  // we skip the frame for UnwindImp() anyway.
>+  void* prev_return_address = nullptr;
>+
>+  while (frame_pointer && n < max_depth) {
>+    // The absl::GetStackFrames routine is called when we are in some
>+    // informational context (the failure signal handler for example).
>+    // Use the non-strict unwinding rules to produce a stack trace
>+    // that is as complete as possible (even if it contains a few bogus
>+    // entries in some rare cases).
>+    void **next_frame_pointer =
>+        NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(frame_pointer, ucp);
>+
>+    if (skip_count > 0) {
>+      skip_count--;
>+    } else {
>+      result[n] = prev_return_address;
>+      if (IS_STACK_FRAMES) {
>+        sizes[n] = ComputeStackFrameSize(frame_pointer, next_frame_pointer);
>+      }
>+      n++;
>+    }
>+    prev_return_address = frame_pointer[1];
>+    frame_pointer = next_frame_pointer;
>+  }
>+  if (min_dropped_frames != nullptr) {
>+    // Implementation detail: we clamp the max of frames we are willing to
>+    // count, so as not to spend too much time in the loop below.
>+    const int kMaxUnwind = 200;
>+    int j = 0;
>+    for (; frame_pointer != nullptr && j < kMaxUnwind; j++) {
>+      frame_pointer =
>+          NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(frame_pointer, ucp);
>+    }
>+    *min_dropped_frames = j;
>+  }
>+  return n;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return true;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_AARCH64_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_arm-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_arm-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c84083379bb237e11d9a1264c8db7a4479a86f70
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_arm-inl.inc
>@@ -0,0 +1,123 @@
>+// Copyright 2011 and onwards Google Inc.
>+// All rights reserved.
>+//
>+// Author: Doug Kwan
>+// This is inspired by Craig Silverstein's PowerPC stacktrace code.
>+//
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_ARM_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_ARM_INL_H_
>+
>+#include <cstdint>
>+
>+#include "absl/debugging/stacktrace.h"
>+
>+// WARNING:
>+// This only works if all your code is in either ARM or THUMB mode.  With
>+// interworking, the frame pointer of the caller can either be in r11 (ARM
>+// mode) or r7 (THUMB mode).  A callee only saves the frame pointer of its
>+// mode in a fixed location on its stack frame.  If the caller is a different
>+// mode, there is no easy way to find the frame pointer.  It can either be
>+// still in the designated register or saved on stack along with other callee
>+// saved registers.
>+
>+// Given a pointer to a stack frame, locate and return the calling
>+// stackframe, or return nullptr if no stackframe can be found. Perform sanity
>+// checks (the strictness of which is controlled by the boolean parameter
>+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
>+template<bool STRICT_UNWINDING>
>+static void **NextStackFrame(void **old_sp) {
>+  void **new_sp = (void**) old_sp[-1];
>+
>+  // Check that the transition from frame pointer old_sp to frame
>+  // pointer new_sp isn't clearly bogus
>+  if (STRICT_UNWINDING) {
>+    // With the stack growing downwards, older stack frame must be
>+    // at a greater address that the current one.
>+    if (new_sp <= old_sp) return nullptr;
>+    // Assume stack frames larger than 100,000 bytes are bogus.
>+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return nullptr;
>+  } else {
>+    // In the non-strict mode, allow discontiguous stack frames.
>+    // (alternate-signal-stacks for example).
>+    if (new_sp == old_sp) return nullptr;
>+    // And allow frames upto about 1MB.
>+    if ((new_sp > old_sp)
>+        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return nullptr;
>+  }
>+  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return nullptr;
>+  return new_sp;
>+}
>+
>+// This ensures that absl::GetStackTrace sets up the Link Register properly.
>+#ifdef __GNUC__
>+void StacktraceArmDummyFunction() __attribute__((noinline));
>+void StacktraceArmDummyFunction() { __asm__ volatile(""); }
>+#else
>+# error StacktraceArmDummyFunction() needs to be ported to this platform.
>+#endif
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
>+                      const void * /* ucp */, int *min_dropped_frames) {
>+#ifdef __GNUC__
>+  void **sp = reinterpret_cast<void**>(__builtin_frame_address(0));
>+#else
>+# error reading stack point not yet supported on this platform.
>+#endif
>+
>+  // On ARM, the return address is stored in the link register (r14).
>+  // This is not saved on the stack frame of a leaf function.  To
>+  // simplify code that reads return addresses, we call a dummy
>+  // function so that the return address of this function is also
>+  // stored in the stack frame.  This works at least for gcc.
>+  StacktraceArmDummyFunction();
>+
>+  int n = 0;
>+  while (sp && n < max_depth) {
>+    // The absl::GetStackFrames routine is called when we are in some
>+    // informational context (the failure signal handler for example).
>+    // Use the non-strict unwinding rules to produce a stack trace
>+    // that is as complete as possible (even if it contains a few bogus
>+    // entries in some rare cases).
>+    void **next_sp = NextStackFrame<!IS_STACK_FRAMES>(sp);
>+
>+    if (skip_count > 0) {
>+      skip_count--;
>+    } else {
>+      result[n] = *sp;
>+
>+      if (IS_STACK_FRAMES) {
>+        if (next_sp > sp) {
>+          sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp;
>+        } else {
>+          // A frame-size of 0 is used to indicate unknown frame size.
>+          sizes[n] = 0;
>+        }
>+      }
>+      n++;
>+    }
>+    sp = next_sp;
>+  }
>+  if (min_dropped_frames != nullptr) {
>+    // Implementation detail: we clamp the max of frames we are willing to
>+    // count, so as not to spend too much time in the loop below.
>+    const int kMaxUnwind = 200;
>+    int j = 0;
>+    for (; sp != nullptr && j < kMaxUnwind; j++) {
>+      sp = NextStackFrame<!IS_STACK_FRAMES>(sp);
>+    }
>+    *min_dropped_frames = j;
>+  }
>+  return n;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return false;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_ARM_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_config.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_config.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..dd713da8c0c7d76509d032b08263de17486ffa6e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_config.h
>@@ -0,0 +1,69 @@
>+/*
>+ * Copyright 2017 The Abseil Authors.
>+ *
>+ * Licensed under the Apache License, Version 2.0 (the "License");
>+ * you may not use this file except in compliance with the License.
>+ * You may obtain a copy of the License at
>+ *
>+ *      http://www.apache.org/licenses/LICENSE-2.0
>+ *
>+ * Unless required by applicable law or agreed to in writing, software
>+ * distributed under the License is distributed on an "AS IS" BASIS,
>+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+ * See the License for the specific language governing permissions and
>+ * limitations under the License.
>+
>+ * Defines ABSL_STACKTRACE_INL_HEADER to the *-inl.h containing
>+ * actual unwinder implementation.
>+ * This header is "private" to stacktrace.cc.
>+ * DO NOT include it into any other files.
>+*/
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_CONFIG_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_CONFIG_H_
>+
>+#if defined(ABSL_STACKTRACE_INL_HEADER)
>+#error ABSL_STACKTRACE_INL_HEADER cannot be directly set
>+
>+#elif defined(_WIN32)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_win32-inl.inc"
>+
>+#elif defined(__linux__) && !defined(__ANDROID__)
>+
>+#if !defined(NO_FRAME_POINTER)
>+# if defined(__i386__) || defined(__x86_64__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_x86-inl.inc"
>+# elif defined(__ppc__) || defined(__PPC__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_powerpc-inl.inc"
>+# elif defined(__aarch64__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_aarch64-inl.inc"
>+# elif defined(__arm__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_arm-inl.inc"
>+# else
>+#define ABSL_STACKTRACE_INL_HEADER \
>+   "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
>+# endif
>+#else  // defined(NO_FRAME_POINTER)
>+# if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_generic-inl.inc"
>+# elif defined(__ppc__) || defined(__PPC__)
>+#define ABSL_STACKTRACE_INL_HEADER \
>+    "absl/debugging/internal/stacktrace_generic-inl.inc"
>+# else
>+#define ABSL_STACKTRACE_INL_HEADER \
>+   "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
>+# endif
>+#endif  // NO_FRAME_POINTER
>+
>+#else
>+#define ABSL_STACKTRACE_INL_HEADER \
>+  "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
>+
>+#endif
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_CONFIG_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_generic-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_generic-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2c9ca410c6083dfa1758ab1155841f7feed2ac2b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_generic-inl.inc
>@@ -0,0 +1,59 @@
>+// Copyright 2000 - 2007 Google Inc.
>+// All rights reserved.
>+//
>+// Author: Sanjay Ghemawat
>+//
>+// Portable implementation - just use glibc
>+//
>+// Note:  The glibc implementation may cause a call to malloc.
>+// This can cause a deadlock in HeapProfiler.
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_GENERIC_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_GENERIC_INL_H_
>+
>+#include <execinfo.h>
>+#include <cstring>
>+
>+#include "absl/debugging/stacktrace.h"
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
>+                      const void *ucp, int *min_dropped_frames) {
>+  static const int kStackLength = 64;
>+  void * stack[kStackLength];
>+  int size;
>+
>+  size = backtrace(stack, kStackLength);
>+  skip_count++;  // we want to skip the current frame as well
>+  int result_count = size - skip_count;
>+  if (result_count < 0)
>+    result_count = 0;
>+  if (result_count > max_depth)
>+    result_count = max_depth;
>+  for (int i = 0; i < result_count; i++)
>+    result[i] = stack[i + skip_count];
>+
>+  if (IS_STACK_FRAMES) {
>+    // No implementation for finding out the stack frame sizes yet.
>+    memset(sizes, 0, sizeof(*sizes) * result_count);
>+  }
>+  if (min_dropped_frames != nullptr) {
>+    if (size - skip_count - max_depth > 0) {
>+      *min_dropped_frames = size - skip_count - max_depth;
>+    } else {
>+      *min_dropped_frames = 0;
>+    }
>+  }
>+
>+  return result_count;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return true;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_GENERIC_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_powerpc-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_powerpc-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..860ac2b3e582510595cbcbffb2b9dcf101c2c559
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_powerpc-inl.inc
>@@ -0,0 +1,246 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Produce stack trace.  I'm guessing (hoping!) the code is much like
>+// for x86.  For apple machines, at least, it seems to be; see
>+//    http://developer.apple.com/documentation/mac/runtimehtml/RTArch-59.html
>+//    http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
>+// Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_POWERPC_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_POWERPC_INL_H_
>+
>+#if defined(__linux__)
>+#include <asm/ptrace.h>   // for PT_NIP.
>+#include <ucontext.h>     // for ucontext_t
>+#endif
>+
>+#include <unistd.h>
>+#include <cassert>
>+#include <cstdint>
>+#include <cstdio>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/optimization.h"
>+#include "absl/base/port.h"
>+#include "absl/debugging/stacktrace.h"
>+#include "absl/debugging/internal/address_is_readable.h"
>+#include "absl/debugging/internal/vdso_support.h"  // a no-op on non-elf or non-glibc systems
>+
>+// Given a stack pointer, return the saved link register value.
>+// Note that this is the link register for a callee.
>+static inline void *StacktracePowerPCGetLR(void **sp) {
>+  // PowerPC has 3 main ABIs, which say where in the stack the
>+  // Link Register is.  For DARWIN and AIX (used by apple and
>+  // linux ppc64), it's in sp[2].  For SYSV (used by linux ppc),
>+  // it's in sp[1].
>+#if defined(_CALL_AIX) || defined(_CALL_DARWIN)
>+  return *(sp+2);
>+#elif defined(_CALL_SYSV)
>+  return *(sp+1);
>+#elif defined(__APPLE__) || defined(__FreeBSD__) || \
>+    (defined(__linux__) && defined(__PPC64__))
>+  // This check is in case the compiler doesn't define _CALL_AIX/etc.
>+  return *(sp+2);
>+#elif defined(__linux)
>+  // This check is in case the compiler doesn't define _CALL_SYSV.
>+  return *(sp+1);
>+#else
>+#error Need to specify the PPC ABI for your archiecture.
>+#endif
>+}
>+
>+// Given a pointer to a stack frame, locate and return the calling
>+// stackframe, or return null if no stackframe can be found. Perform sanity
>+// checks (the strictness of which is controlled by the boolean parameter
>+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
>+template<bool STRICT_UNWINDING, bool IS_WITH_CONTEXT>
>+ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS  // May read random elements from stack.
>+ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY   // May read random elements from stack.
>+static void **NextStackFrame(void **old_sp, const void *uc) {
>+  void **new_sp = (void **) *old_sp;
>+  enum { kStackAlignment = 16 };
>+
>+  // Check that the transition from frame pointer old_sp to frame
>+  // pointer new_sp isn't clearly bogus
>+  if (STRICT_UNWINDING) {
>+    // With the stack growing downwards, older stack frame must be
>+    // at a greater address that the current one.
>+    if (new_sp <= old_sp) return nullptr;
>+    // Assume stack frames larger than 100,000 bytes are bogus.
>+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return nullptr;
>+  } else {
>+    // In the non-strict mode, allow discontiguous stack frames.
>+    // (alternate-signal-stacks for example).
>+    if (new_sp == old_sp) return nullptr;
>+    // And allow frames upto about 1MB.
>+    if ((new_sp > old_sp)
>+        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return nullptr;
>+  }
>+  if ((uintptr_t)new_sp % kStackAlignment != 0) return nullptr;
>+
>+#if defined(__linux__)
>+  enum StackTraceKernelSymbolStatus {
>+      kNotInitialized = 0, kAddressValid, kAddressInvalid };
>+
>+  if (IS_WITH_CONTEXT && uc != nullptr) {
>+    static StackTraceKernelSymbolStatus kernel_symbol_status =
>+        kNotInitialized;  // Sentinel: not computed yet.
>+    // Initialize with sentinel value: __kernel_rt_sigtramp_rt64 can not
>+    // possibly be there.
>+    static const unsigned char *kernel_sigtramp_rt64_address = nullptr;
>+    if (kernel_symbol_status == kNotInitialized) {
>+      absl::debugging_internal::VDSOSupport vdso;
>+      if (vdso.IsPresent()) {
>+        absl::debugging_internal::VDSOSupport::SymbolInfo
>+            sigtramp_rt64_symbol_info;
>+        if (!vdso.LookupSymbol(
>+                "__kernel_sigtramp_rt64", "LINUX_2.6.15",
>+                absl::debugging_internal::VDSOSupport::kVDSOSymbolType,
>+                &sigtramp_rt64_symbol_info) ||
>+            sigtramp_rt64_symbol_info.address == nullptr) {
>+          // Unexpected: VDSO is present, yet the expected symbol is missing
>+          // or null.
>+          assert(false && "VDSO is present, but doesn't have expected symbol");
>+          kernel_symbol_status = kAddressInvalid;
>+        } else {
>+          kernel_sigtramp_rt64_address =
>+              reinterpret_cast<const unsigned char *>(
>+                  sigtramp_rt64_symbol_info.address);
>+          kernel_symbol_status = kAddressValid;
>+        }
>+      } else {
>+        kernel_symbol_status = kAddressInvalid;
>+      }
>+    }
>+
>+    if (new_sp != nullptr &&
>+        kernel_symbol_status == kAddressValid &&
>+        StacktracePowerPCGetLR(new_sp) == kernel_sigtramp_rt64_address) {
>+      const ucontext_t* signal_context =
>+          reinterpret_cast<const ucontext_t*>(uc);
>+      void **const sp_before_signal =
>+          reinterpret_cast<void**>(signal_context->uc_mcontext.gp_regs[PT_R1]);
>+      // Check that alleged sp before signal is nonnull and is reasonably
>+      // aligned.
>+      if (sp_before_signal != nullptr &&
>+          ((uintptr_t)sp_before_signal % kStackAlignment) == 0) {
>+        // Check that alleged stack pointer is actually readable. This is to
>+        // prevent a "double fault" in case we hit the first fault due to e.g.
>+        // a stack corruption.
>+        if (absl::debugging_internal::AddressIsReadable(sp_before_signal)) {
>+          // Alleged stack pointer is readable, use it for further unwinding.
>+          new_sp = sp_before_signal;
>+        }
>+      }
>+    }
>+  }
>+#endif
>+
>+  return new_sp;
>+}
>+
>+// This ensures that absl::GetStackTrace sets up the Link Register properly.
>+ABSL_ATTRIBUTE_NOINLINE static void AbslStacktracePowerPCDummyFunction() {
>+  ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
>+}
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS  // May read random elements from stack.
>+ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY   // May read random elements from stack.
>+static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
>+                      const void *ucp, int *min_dropped_frames) {
>+  void **sp;
>+  // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
>+  // and Darwin 8.8.1 (Tiger) use as 1.38.  This means we have to use a
>+  // different asm syntax.  I don't know quite the best way to discriminate
>+  // systems using the old as from the new one; I've gone with __APPLE__.
>+#ifdef __APPLE__
>+  __asm__ volatile ("mr %0,r1" : "=r" (sp));
>+#else
>+  __asm__ volatile ("mr %0,1" : "=r" (sp));
>+#endif
>+
>+  // On PowerPC, the "Link Register" or "Link Record" (LR), is a stack
>+  // entry that holds the return address of the subroutine call (what
>+  // instruction we run after our function finishes).  This is the
>+  // same as the stack-pointer of our parent routine, which is what we
>+  // want here.  While the compiler will always(?) set up LR for
>+  // subroutine calls, it may not for leaf functions (such as this one).
>+  // This routine forces the compiler (at least gcc) to push it anyway.
>+  AbslStacktracePowerPCDummyFunction();
>+
>+  // The LR save area is used by the callee, so the top entry is bogus.
>+  skip_count++;
>+
>+  int n = 0;
>+
>+  // Unlike ABIs of X86 and ARM, PowerPC ABIs say that return address (in
>+  // the link register) of a function call is stored in the caller's stack
>+  // frame instead of the callee's.  When we look for the return address
>+  // associated with a stack frame, we need to make sure that there is a
>+  // caller frame before it.  So we call NextStackFrame before entering the
>+  // loop below and check next_sp instead of sp for loop termination.
>+  // The outermost frame is set up by runtimes and it does not have a
>+  // caller frame, so it is skipped.
>+
>+  // The absl::GetStackFrames routine is called when we are in some
>+  // informational context (the failure signal handler for example).
>+  // Use the non-strict unwinding rules to produce a stack trace
>+  // that is as complete as possible (even if it contains a few
>+  // bogus entries in some rare cases).
>+  void **next_sp = NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(sp, ucp);
>+
>+  while (next_sp && n < max_depth) {
>+    if (skip_count > 0) {
>+      skip_count--;
>+    } else {
>+      result[n] = StacktracePowerPCGetLR(sp);
>+      if (IS_STACK_FRAMES) {
>+        if (next_sp > sp) {
>+          sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp;
>+        } else {
>+          // A frame-size of 0 is used to indicate unknown frame size.
>+          sizes[n] = 0;
>+        }
>+      }
>+      n++;
>+    }
>+
>+    sp = next_sp;
>+    next_sp = NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(sp, ucp);
>+  }
>+
>+  if (min_dropped_frames != nullptr) {
>+    // Implementation detail: we clamp the max of frames we are willing to
>+    // count, so as not to spend too much time in the loop below.
>+    const int kMaxUnwind = 1000;
>+    int j = 0;
>+    for (; next_sp != nullptr && j < kMaxUnwind; j++) {
>+      next_sp = NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(next_sp, ucp);
>+    }
>+    *min_dropped_frames = j;
>+  }
>+  return n;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return true;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_POWERPC_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_unimplemented-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_unimplemented-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e256fdd4ae76e6f8ab15c7b3abc3fdc6cb6114f6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_unimplemented-inl.inc
>@@ -0,0 +1,22 @@
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_UNIMPLEMENTED_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_UNIMPLEMENTED_INL_H_
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+static int UnwindImpl(void** /* result */, int* /* sizes */,
>+                      int /* max_depth */, int /* skip_count */,
>+                      const void* /* ucp */, int *min_dropped_frames) {
>+  if (min_dropped_frames != nullptr) {
>+    *min_dropped_frames = 0;
>+  }
>+  return 0;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return false;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_UNIMPLEMENTED_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_win32-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_win32-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a8f8a56afb3748220d502e26a1921091ed6ab07a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_win32-inl.inc
>@@ -0,0 +1,83 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Produces a stack trace for Windows.  Normally, one could use
>+// stacktrace_x86-inl.h or stacktrace_x86_64-inl.h -- and indeed, that
>+// should work for binaries compiled using MSVC in "debug" mode.
>+// However, in "release" mode, Windows uses frame-pointer
>+// optimization, which makes getting a stack trace very difficult.
>+//
>+// There are several approaches one can take.  One is to use Windows
>+// intrinsics like StackWalk64.  These can work, but have restrictions
>+// on how successful they can be.  Another attempt is to write a
>+// version of stacktrace_x86-inl.h that has heuristic support for
>+// dealing with FPO, similar to what WinDbg does (see
>+// http://www.nynaeve.net/?p=97).  There are (non-working) examples of
>+// these approaches, complete with TODOs, in stacktrace_win32-inl.h#1
>+//
>+// The solution we've ended up doing is to call the undocumented
>+// windows function RtlCaptureStackBackTrace, which probably doesn't
>+// work with FPO but at least is fast, and doesn't require a symbol
>+// server.
>+//
>+// This code is inspired by a patch from David Vitek:
>+//   http://code.google.com/p/google-perftools/issues/detail?id=83
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_WIN32_INL_H_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_WIN32_INL_H_
>+
>+#include <windows.h>    // for GetProcAddress and GetModuleHandle
>+#include <cassert>
>+
>+typedef USHORT NTAPI RtlCaptureStackBackTrace_Function(
>+    IN ULONG frames_to_skip,
>+    IN ULONG frames_to_capture,
>+    OUT PVOID *backtrace,
>+    OUT PULONG backtrace_hash);
>+
>+// Load the function we need at static init time, where we don't have
>+// to worry about someone else holding the loader's lock.
>+static RtlCaptureStackBackTrace_Function* const RtlCaptureStackBackTrace_fn =
>+   (RtlCaptureStackBackTrace_Function*)
>+   GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCaptureStackBackTrace");
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
>+                      const void *ucp, int *min_dropped_frames) {
>+  int n = 0;
>+  if (!RtlCaptureStackBackTrace_fn) {
>+    // can't find a stacktrace with no function to call
>+  } else {
>+    n = (int)RtlCaptureStackBackTrace_fn(skip_count + 2, max_depth, result, 0);
>+  }
>+  if (IS_STACK_FRAMES) {
>+    // No implementation for finding out the stack frame sizes yet.
>+    memset(sizes, 0, sizeof(*sizes) * n);
>+  }
>+  if (min_dropped_frames != nullptr) {
>+    // Not implemented.
>+    *min_dropped_frames = 0;
>+  }
>+  return n;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return false;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_WIN32_INL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_x86-inl.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_x86-inl.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ac85b920332417ccf00c1396132544df8b352eb8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/stacktrace_x86-inl.inc
>@@ -0,0 +1,337 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Produce stack trace
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_X86_INL_INC_
>+#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_X86_INL_INC_
>+
>+#if defined(__linux__) && (defined(__i386__) || defined(__x86_64__))
>+#include <ucontext.h>  // for ucontext_t
>+#endif
>+
>+#if !defined(_WIN32)
>+#include <unistd.h>
>+#endif
>+
>+#include <cassert>
>+#include <cstdint>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/debugging/internal/address_is_readable.h"
>+#include "absl/debugging/internal/vdso_support.h"  // a no-op on non-elf or non-glibc systems
>+#include "absl/debugging/stacktrace.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+#if defined(__linux__) && defined(__i386__)
>+// Count "push %reg" instructions in VDSO __kernel_vsyscall(),
>+// preceeding "syscall" or "sysenter".
>+// If __kernel_vsyscall uses frame pointer, answer 0.
>+//
>+// kMaxBytes tells how many instruction bytes of __kernel_vsyscall
>+// to analyze before giving up. Up to kMaxBytes+1 bytes of
>+// instructions could be accessed.
>+//
>+// Here are known __kernel_vsyscall instruction sequences:
>+//
>+// SYSENTER (linux-2.6.26/arch/x86/vdso/vdso32/sysenter.S).
>+// Used on Intel.
>+//  0xffffe400 <__kernel_vsyscall+0>:       push   %ecx
>+//  0xffffe401 <__kernel_vsyscall+1>:       push   %edx
>+//  0xffffe402 <__kernel_vsyscall+2>:       push   %ebp
>+//  0xffffe403 <__kernel_vsyscall+3>:       mov    %esp,%ebp
>+//  0xffffe405 <__kernel_vsyscall+5>:       sysenter
>+//
>+// SYSCALL (see linux-2.6.26/arch/x86/vdso/vdso32/syscall.S).
>+// Used on AMD.
>+//  0xffffe400 <__kernel_vsyscall+0>:       push   %ebp
>+//  0xffffe401 <__kernel_vsyscall+1>:       mov    %ecx,%ebp
>+//  0xffffe403 <__kernel_vsyscall+3>:       syscall
>+//
>+
>+// The sequence below isn't actually expected in Google fleet,
>+// here only for completeness. Remove this comment from OSS release.
>+
>+// i386 (see linux-2.6.26/arch/x86/vdso/vdso32/int80.S)
>+//  0xffffe400 <__kernel_vsyscall+0>:       int $0x80
>+//  0xffffe401 <__kernel_vsyscall+1>:       ret
>+//
>+static const int kMaxBytes = 10;
>+
>+// We use assert()s instead of DCHECK()s -- this is too low level
>+// for DCHECK().
>+
>+static int CountPushInstructions(const unsigned char *const addr) {
>+  int result = 0;
>+  for (int i = 0; i < kMaxBytes; ++i) {
>+    if (addr[i] == 0x89) {
>+      // "mov reg,reg"
>+      if (addr[i + 1] == 0xE5) {
>+        // Found "mov %esp,%ebp".
>+        return 0;  
>+      }
>+      ++i;  // Skip register encoding byte.
>+    } else if (addr[i] == 0x0F &&
>+               (addr[i + 1] == 0x34 || addr[i + 1] == 0x05)) {
>+      // Found "sysenter" or "syscall".
>+      return result;
>+    } else if ((addr[i] & 0xF0) == 0x50) {
>+      // Found "push %reg".
>+      ++result;
>+    } else if (addr[i] == 0xCD && addr[i + 1] == 0x80) {
>+      // Found "int $0x80"
>+      assert(result == 0);
>+      return 0;
>+    } else {
>+      // Unexpected instruction.
>+      assert(false && "unexpected instruction in __kernel_vsyscall");
>+      return 0;
>+    }
>+  }
>+  // Unexpected: didn't find SYSENTER or SYSCALL in
>+  // [__kernel_vsyscall, __kernel_vsyscall + kMaxBytes) interval.
>+  assert(false && "did not find SYSENTER or SYSCALL in __kernel_vsyscall");
>+  return 0;
>+}
>+#endif
>+
>+// Assume stack frames larger than 100,000 bytes are bogus.
>+static const int kMaxFrameBytes = 100000;
>+
>+// Returns the stack frame pointer from signal context, 0 if unknown.
>+// vuc is a ucontext_t *.  We use void* to avoid the use
>+// of ucontext_t on non-POSIX systems.
>+static uintptr_t GetFP(const void *vuc) {
>+#if !defined(__linux__)
>+  static_cast<void>(vuc);  // Avoid an unused argument compiler warning.
>+#else
>+  if (vuc != nullptr) {
>+    auto *uc = reinterpret_cast<const ucontext_t *>(vuc);
>+#if defined(__i386__)
>+    const auto bp = uc->uc_mcontext.gregs[REG_EBP];
>+    const auto sp = uc->uc_mcontext.gregs[REG_ESP];
>+#elif defined(__x86_64__)
>+    const auto bp = uc->uc_mcontext.gregs[REG_RBP];
>+    const auto sp = uc->uc_mcontext.gregs[REG_RSP];
>+#else
>+    const uintptr_t bp = 0;
>+    const uintptr_t sp = 0;
>+#endif
>+    // Sanity-check that the base pointer is valid.  It should be as long as
>+    // SHRINK_WRAP_FRAME_POINTER is not set, but it's possible that some code in
>+    // the process is compiled with --copt=-fomit-frame-pointer or
>+    // --copt=-momit-leaf-frame-pointer.
>+    //
>+    // TODO(bcmills): -momit-leaf-frame-pointer is currently the default
>+    // behavior when building with clang.  Talk to the C++ toolchain team about
>+    // fixing that.
>+    if (bp >= sp && bp - sp <= kMaxFrameBytes) return bp;
>+
>+    // If bp isn't a plausible frame pointer, return the stack pointer instead.
>+    // If we're lucky, it points to the start of a stack frame; otherwise, we'll
>+    // get one frame of garbage in the stack trace and fail the sanity check on
>+    // the next iteration.
>+    return sp;
>+  }
>+#endif
>+  return 0;
>+}
>+
>+// Given a pointer to a stack frame, locate and return the calling
>+// stackframe, or return null if no stackframe can be found. Perform sanity
>+// checks (the strictness of which is controlled by the boolean parameter
>+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
>+template <bool STRICT_UNWINDING, bool WITH_CONTEXT>
>+ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS  // May read random elements from stack.
>+ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY   // May read random elements from stack.
>+static void **NextStackFrame(void **old_fp, const void *uc) {
>+  void **new_fp = (void **)*old_fp;
>+
>+#if defined(__linux__) && defined(__i386__)
>+  if (WITH_CONTEXT && uc != nullptr) {
>+    // How many "push %reg" instructions are there at __kernel_vsyscall?
>+    // This is constant for a given kernel and processor, so compute
>+    // it only once.
>+    static int num_push_instructions = -1;  // Sentinel: not computed yet.
>+    // Initialize with sentinel value: __kernel_rt_sigreturn can not possibly
>+    // be there.
>+    static const unsigned char *kernel_rt_sigreturn_address = nullptr;
>+    static const unsigned char *kernel_vsyscall_address = nullptr;
>+    if (num_push_instructions == -1) {
>+      absl::debugging_internal::VDSOSupport vdso;
>+      if (vdso.IsPresent()) {
>+        absl::debugging_internal::VDSOSupport::SymbolInfo
>+            rt_sigreturn_symbol_info;
>+        absl::debugging_internal::VDSOSupport::SymbolInfo vsyscall_symbol_info;
>+        if (!vdso.LookupSymbol("__kernel_rt_sigreturn", "LINUX_2.5", STT_FUNC,
>+                               &rt_sigreturn_symbol_info) ||
>+            !vdso.LookupSymbol("__kernel_vsyscall", "LINUX_2.5", STT_FUNC,
>+                               &vsyscall_symbol_info) ||
>+            rt_sigreturn_symbol_info.address == nullptr ||
>+            vsyscall_symbol_info.address == nullptr) {
>+          // Unexpected: 32-bit VDSO is present, yet one of the expected
>+          // symbols is missing or null.
>+          assert(false && "VDSO is present, but doesn't have expected symbols");
>+          num_push_instructions = 0;
>+        } else {
>+          kernel_rt_sigreturn_address =
>+              reinterpret_cast<const unsigned char *>(
>+                  rt_sigreturn_symbol_info.address);
>+          kernel_vsyscall_address =
>+              reinterpret_cast<const unsigned char *>(
>+                  vsyscall_symbol_info.address);
>+          num_push_instructions =
>+              CountPushInstructions(kernel_vsyscall_address);
>+        }
>+      } else {
>+        num_push_instructions = 0;
>+      }
>+    }
>+    if (num_push_instructions != 0 && kernel_rt_sigreturn_address != nullptr &&
>+        old_fp[1] == kernel_rt_sigreturn_address) {
>+      const ucontext_t *ucv = static_cast<const ucontext_t *>(uc);
>+      // This kernel does not use frame pointer in its VDSO code,
>+      // and so %ebp is not suitable for unwinding.
>+      void **const reg_ebp =
>+          reinterpret_cast<void **>(ucv->uc_mcontext.gregs[REG_EBP]);
>+      const unsigned char *const reg_eip =
>+          reinterpret_cast<unsigned char *>(ucv->uc_mcontext.gregs[REG_EIP]);
>+      if (new_fp == reg_ebp && kernel_vsyscall_address <= reg_eip &&
>+          reg_eip - kernel_vsyscall_address < kMaxBytes) {
>+        // We "stepped up" to __kernel_vsyscall, but %ebp is not usable.
>+        // Restore from 'ucv' instead.
>+        void **const reg_esp =
>+            reinterpret_cast<void **>(ucv->uc_mcontext.gregs[REG_ESP]);
>+        // Check that alleged %esp is not null and is reasonably aligned.
>+        if (reg_esp &&
>+            ((uintptr_t)reg_esp & (sizeof(reg_esp) - 1)) == 0) {
>+          // Check that alleged %esp is actually readable. This is to prevent
>+          // "double fault" in case we hit the first fault due to e.g. stack
>+          // corruption.
>+          void *const reg_esp2 = reg_esp[num_push_instructions - 1];
>+          if (absl::debugging_internal::AddressIsReadable(reg_esp2)) {
>+            // Alleged %esp is readable, use it for further unwinding.
>+            new_fp = reinterpret_cast<void **>(reg_esp2);
>+          }
>+        }
>+      }
>+    }
>+  }
>+#endif
>+
>+  const uintptr_t old_fp_u = reinterpret_cast<uintptr_t>(old_fp);
>+  const uintptr_t new_fp_u = reinterpret_cast<uintptr_t>(new_fp);
>+
>+  // Check that the transition from frame pointer old_fp to frame
>+  // pointer new_fp isn't clearly bogus.  Skip the checks if new_fp
>+  // matches the signal context, so that we don't skip out early when
>+  // using an alternate signal stack.
>+  //
>+  // TODO(bcmills): The GetFP call should be completely unnecessary when
>+  // SHRINK_WRAP_FRAME_POINTER is set (because we should be back in the thread's
>+  // stack by this point), but it is empirically still needed (e.g. when the
>+  // stack includes a call to abort).  unw_get_reg returns UNW_EBADREG for some
>+  // frames.  Figure out why GetValidFrameAddr and/or libunwind isn't doing what
>+  // it's supposed to.
>+  if (STRICT_UNWINDING &&
>+      (!WITH_CONTEXT || uc == nullptr || new_fp_u != GetFP(uc))) {
>+    // With the stack growing downwards, older stack frame must be
>+    // at a greater address that the current one.
>+    if (new_fp_u <= old_fp_u) return nullptr;
>+    if (new_fp_u - old_fp_u > kMaxFrameBytes) return nullptr;
>+  } else {
>+    if (new_fp == nullptr) return nullptr;  // skip AddressIsReadable() below
>+    // In the non-strict mode, allow discontiguous stack frames.
>+    // (alternate-signal-stacks for example).
>+    if (new_fp == old_fp) return nullptr;
>+  }
>+
>+  if (new_fp_u & (sizeof(void *) - 1)) return nullptr;
>+#ifdef __i386__
>+  // On 32-bit machines, the stack pointer can be very close to
>+  // 0xffffffff, so we explicitly check for a pointer into the
>+  // last two pages in the address space
>+  if (new_fp_u >= 0xffffe000) return nullptr;
>+#endif
>+#if !defined(_WIN32)
>+  if (!STRICT_UNWINDING) {
>+    // Lax sanity checks cause a crash in 32-bit tcmalloc/crash_reason_test
>+    // on AMD-based machines with VDSO-enabled kernels.
>+    // Make an extra sanity check to insure new_fp is readable.
>+    // Note: NextStackFrame<false>() is only called while the program
>+    //       is already on its last leg, so it's ok to be slow here.
>+
>+    if (!absl::debugging_internal::AddressIsReadable(new_fp)) {
>+      return nullptr;
>+    }
>+  }
>+#endif
>+  return new_fp;
>+}
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS  // May read random elements from stack.
>+ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY   // May read random elements from stack.
>+ABSL_ATTRIBUTE_NOINLINE
>+static int UnwindImpl(void **result, int *sizes, int max_depth, int skip_count,
>+                      const void *ucp, int *min_dropped_frames) {
>+  int n = 0;
>+  void **fp = reinterpret_cast<void **>(__builtin_frame_address(0));
>+
>+  while (fp && n < max_depth) {
>+    if (*(fp + 1) == reinterpret_cast<void *>(0)) {
>+      // In 64-bit code, we often see a frame that
>+      // points to itself and has a return address of 0.
>+      break;
>+    }
>+    void **next_fp = NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(fp, ucp);
>+    if (skip_count > 0) {
>+      skip_count--;
>+    } else {
>+      result[n] = *(fp + 1);
>+      if (IS_STACK_FRAMES) {
>+        if (next_fp > fp) {
>+          sizes[n] = (uintptr_t)next_fp - (uintptr_t)fp;
>+        } else {
>+          // A frame-size of 0 is used to indicate unknown frame size.
>+          sizes[n] = 0;
>+        }
>+      }
>+      n++;
>+    }
>+    fp = next_fp;
>+  }
>+  if (min_dropped_frames != nullptr) {
>+    // Implementation detail: we clamp the max of frames we are willing to
>+    // count, so as not to spend too much time in the loop below.
>+    const int kMaxUnwind = 1000;
>+    int j = 0;
>+    for (; fp != nullptr && j < kMaxUnwind; j++) {
>+      fp = NextStackFrame<!IS_STACK_FRAMES, IS_WITH_CONTEXT>(fp, ucp);
>+    }
>+    *min_dropped_frames = j;
>+  }
>+  return n;
>+}
>+
>+namespace absl {
>+namespace debugging_internal {
>+bool StackTraceWorksForTest() {
>+  return true;
>+}
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_STACKTRACE_X86_INL_INC_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/symbolize.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/symbolize.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8d926fec48aae8c365215535317c85392b305980
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/symbolize.h
>@@ -0,0 +1,123 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains internal parts of the Abseil symbolizer.
>+// Do not depend on the anything in this file, it may change at anytime.
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_SYMBOLIZE_H_
>+#define ABSL_DEBUGGING_INTERNAL_SYMBOLIZE_H_
>+
>+#include <cstddef>
>+#include <cstdint>
>+#include "absl/base/port.h"  // Needed for string vs std::string
>+
>+#ifdef ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE
>+#error ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE cannot be directly set
>+#elif defined(__ELF__) && defined(__GLIBC__) && !defined(__native_client__) && \
>+    !defined(__asmjs__) && !defined(__wasm__)
>+#define ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE 1
>+
>+#include <elf.h>
>+#include <link.h>  // For ElfW() macro.
>+#include <functional>
>+#include <string>
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// Iterates over all sections, invoking callback on each with the section name
>+// and the section header.
>+//
>+// Returns true on success; otherwise returns false in case of errors.
>+//
>+// This is not async-signal-safe.
>+bool ForEachSection(
>+    int fd, const std::function<bool(const std::string& name, const ElfW(Shdr) &)>&
>+                callback);
>+
>+// Gets the section header for the given name, if it exists. Returns true on
>+// success. Otherwise, returns false.
>+bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
>+                            ElfW(Shdr) *out);
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+struct SymbolDecoratorArgs {
>+  // The program counter we are getting symbolic name for.
>+  const void *pc;
>+  // 0 for main executable, load address for shared libraries.
>+  ptrdiff_t relocation;
>+  // Read-only file descriptor for ELF image covering "pc",
>+  // or -1 if no such ELF image exists in /proc/self/maps.
>+  int fd;
>+  // Output buffer, size.
>+  // Note: the buffer may not be empty -- default symbolizer may have already
>+  // produced some output, and earlier decorators may have adorned it in
>+  // some way. You are free to replace or augment the contents (within the
>+  // symbol_buf_size limit).
>+  char *const symbol_buf;
>+  size_t symbol_buf_size;
>+  // Temporary scratch space, size.
>+  // Use that space in preference to allocating your own stack buffer to
>+  // conserve stack.
>+  char *const tmp_buf;
>+  size_t tmp_buf_size;
>+  // User-provided argument
>+  void* arg;
>+};
>+using SymbolDecorator = void (*)(const SymbolDecoratorArgs *);
>+
>+// Installs a function-pointer as a decorator. Returns a value less than zero
>+// if the system cannot install the decorator. Otherwise, returns a unique
>+// identifier corresponding to the decorator. This identifier can be used to
>+// uninstall the decorator - See RemoveSymbolDecorator() below.
>+int InstallSymbolDecorator(SymbolDecorator decorator, void* arg);
>+
>+// Removes a previously installed function-pointer decorator. Parameter "ticket"
>+// is the return-value from calling InstallSymbolDecorator().
>+bool RemoveSymbolDecorator(int ticket);
>+
>+// Remove all installed decorators.  Returns true if successful, false if
>+// symbolization is currently in progress.
>+bool RemoveAllSymbolDecorators(void);
>+
>+// Registers an address range to a file mapping.
>+//
>+// Preconditions:
>+//   start <= end
>+//   filename != nullptr
>+//
>+// Returns true if the file was successfully registered.
>+bool RegisterFileMappingHint(
>+    const void* start, const void* end, uint64_t offset, const char* filename);
>+
>+// Looks up the file mapping registered by RegisterFileMappingHint for an
>+// address range. If there is one, the file name is stored in *filename and
>+// *start and *end are modified to reflect the registered mapping. Returns
>+// whether any hint was found.
>+bool GetFileMappingHint(const void** start,
>+                        const void** end,
>+                        uint64_t    *  offset,
>+                        const char** filename);
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_SYMBOLIZE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e8129e87dca75568108b97fb916e6ed97250b1be
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.cc
>@@ -0,0 +1,192 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Allow dynamic symbol lookup in the kernel VDSO page.
>+//
>+// VDSOSupport -- a class representing kernel VDSO (if present).
>+
>+#include "absl/debugging/internal/vdso_support.h"
>+
>+#ifdef ABSL_HAVE_VDSO_SUPPORT     // defined in vdso_support.h
>+
>+#include <errno.h>
>+#include <fcntl.h>
>+#include <sys/syscall.h>
>+#include <unistd.h>
>+
>+#if __GLIBC_PREREQ(2, 16)  // GLIBC-2.16 implements getauxval.
>+#include <sys/auxv.h>
>+#endif
>+
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/port.h"
>+
>+#ifndef AT_SYSINFO_EHDR
>+#define AT_SYSINFO_EHDR 33  // for crosstoolv10
>+#endif
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+ABSL_CONST_INIT
>+std::atomic<const void *> VDSOSupport::vdso_base_(
>+    debugging_internal::ElfMemImage::kInvalidBase);
>+
>+std::atomic<VDSOSupport::GetCpuFn> VDSOSupport::getcpu_fn_(&InitAndGetCPU);
>+VDSOSupport::VDSOSupport()
>+    // If vdso_base_ is still set to kInvalidBase, we got here
>+    // before VDSOSupport::Init has been called. Call it now.
>+    : image_(vdso_base_.load(std::memory_order_relaxed) ==
>+                     debugging_internal::ElfMemImage::kInvalidBase
>+                 ? Init()
>+                 : vdso_base_.load(std::memory_order_relaxed)) {}
>+
>+// NOTE: we can't use GoogleOnceInit() below, because we can be
>+// called by tcmalloc, and none of the *once* stuff may be functional yet.
>+//
>+// In addition, we hope that the VDSOSupportHelper constructor
>+// causes this code to run before there are any threads, and before
>+// InitGoogle() has executed any chroot or setuid calls.
>+//
>+// Finally, even if there is a race here, it is harmless, because
>+// the operation should be idempotent.
>+const void *VDSOSupport::Init() {
>+  const auto kInvalidBase = debugging_internal::ElfMemImage::kInvalidBase;
>+#if __GLIBC_PREREQ(2, 16)
>+  if (vdso_base_.load(std::memory_order_relaxed) == kInvalidBase) {
>+    errno = 0;
>+    const void *const sysinfo_ehdr =
>+        reinterpret_cast<const void *>(getauxval(AT_SYSINFO_EHDR));
>+    if (errno == 0) {
>+      vdso_base_.store(sysinfo_ehdr, std::memory_order_relaxed);
>+    }
>+  }
>+#endif  // __GLIBC_PREREQ(2, 16)
>+  if (vdso_base_.load(std::memory_order_relaxed) == kInvalidBase) {
>+    // Valgrind zaps AT_SYSINFO_EHDR and friends from the auxv[]
>+    // on stack, and so glibc works as if VDSO was not present.
>+    // But going directly to kernel via /proc/self/auxv below bypasses
>+    // Valgrind zapping. So we check for Valgrind separately.
>+    if (AbslRunningOnValgrind()) {
>+      vdso_base_.store(nullptr, std::memory_order_relaxed);
>+      getcpu_fn_.store(&GetCPUViaSyscall, std::memory_order_relaxed);
>+      return nullptr;
>+    }
>+    int fd = open("/proc/self/auxv", O_RDONLY);
>+    if (fd == -1) {
>+      // Kernel too old to have a VDSO.
>+      vdso_base_.store(nullptr, std::memory_order_relaxed);
>+      getcpu_fn_.store(&GetCPUViaSyscall, std::memory_order_relaxed);
>+      return nullptr;
>+    }
>+    ElfW(auxv_t) aux;
>+    while (read(fd, &aux, sizeof(aux)) == sizeof(aux)) {
>+      if (aux.a_type == AT_SYSINFO_EHDR) {
>+        vdso_base_.store(reinterpret_cast<void *>(aux.a_un.a_val),
>+                         std::memory_order_relaxed);
>+        break;
>+      }
>+    }
>+    close(fd);
>+    if (vdso_base_.load(std::memory_order_relaxed) == kInvalidBase) {
>+      // Didn't find AT_SYSINFO_EHDR in auxv[].
>+      vdso_base_.store(nullptr, std::memory_order_relaxed);
>+    }
>+  }
>+  GetCpuFn fn = &GetCPUViaSyscall;  // default if VDSO not present.
>+  if (vdso_base_.load(std::memory_order_relaxed)) {
>+    VDSOSupport vdso;
>+    SymbolInfo info;
>+    if (vdso.LookupSymbol("__vdso_getcpu", "LINUX_2.6", STT_FUNC, &info)) {
>+      fn = reinterpret_cast<GetCpuFn>(const_cast<void *>(info.address));
>+    }
>+  }
>+  // Subtle: this code runs outside of any locks; prevent compiler
>+  // from assigning to getcpu_fn_ more than once.
>+  getcpu_fn_.store(fn, std::memory_order_relaxed);
>+  return vdso_base_.load(std::memory_order_relaxed);
>+}
>+
>+const void *VDSOSupport::SetBase(const void *base) {
>+  ABSL_RAW_CHECK(base != debugging_internal::ElfMemImage::kInvalidBase,
>+                 "internal error");
>+  const void *old_base = vdso_base_.load(std::memory_order_relaxed);
>+  vdso_base_.store(base, std::memory_order_relaxed);
>+  image_.Init(base);
>+  // Also reset getcpu_fn_, so GetCPU could be tested with simulated VDSO.
>+  getcpu_fn_.store(&InitAndGetCPU, std::memory_order_relaxed);
>+  return old_base;
>+}
>+
>+bool VDSOSupport::LookupSymbol(const char *name,
>+                               const char *version,
>+                               int type,
>+                               SymbolInfo *info) const {
>+  return image_.LookupSymbol(name, version, type, info);
>+}
>+
>+bool VDSOSupport::LookupSymbolByAddress(const void *address,
>+                                        SymbolInfo *info_out) const {
>+  return image_.LookupSymbolByAddress(address, info_out);
>+}
>+
>+// NOLINT on 'long' because this routine mimics kernel api.
>+long VDSOSupport::GetCPUViaSyscall(unsigned *cpu,  // NOLINT(runtime/int)
>+                                   void *, void *) {
>+#ifdef SYS_getcpu
>+  return syscall(SYS_getcpu, cpu, nullptr, nullptr);
>+#else
>+  // x86_64 never implemented sys_getcpu(), except as a VDSO call.
>+  static_cast<void>(cpu);  // Avoid an unused argument compiler warning.
>+  errno = ENOSYS;
>+  return -1;
>+#endif
>+}
>+
>+// Use fast __vdso_getcpu if available.
>+long VDSOSupport::InitAndGetCPU(unsigned *cpu,  // NOLINT(runtime/int)
>+                                void *x, void *y) {
>+  Init();
>+  GetCpuFn fn = getcpu_fn_.load(std::memory_order_relaxed);
>+  ABSL_RAW_CHECK(fn != &InitAndGetCPU, "Init() did not set getcpu_fn_");
>+  return (*fn)(cpu, x, y);
>+}
>+
>+// This function must be very fast, and may be called from very
>+// low level (e.g. tcmalloc). Hence I avoid things like
>+// GoogleOnceInit() and ::operator new.
>+ABSL_ATTRIBUTE_NO_SANITIZE_MEMORY
>+int GetCPU() {
>+  unsigned cpu;
>+  int ret_code = (*VDSOSupport::getcpu_fn_)(&cpu, nullptr, nullptr);
>+  return ret_code == 0 ? cpu : ret_code;
>+}
>+
>+// We need to make sure VDSOSupport::Init() is called before
>+// InitGoogle() does any setuid or chroot calls.  If VDSOSupport
>+// is used in any global constructor, this will happen, since
>+// VDSOSupport's constructor calls Init.  But if not, we need to
>+// ensure it here, with a global constructor of our own.  This
>+// is an allowed exception to the normal rule against non-trivial
>+// global constructors.
>+static class VDSOInitHelper {
>+ public:
>+  VDSOInitHelper() { VDSOSupport::Init(); }
>+} vdso_init_helper;
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_VDSO_SUPPORT
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8002c7405fadd8a1d358b63806beeb348d3a8350
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/internal/vdso_support.h
>@@ -0,0 +1,156 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// Allow dynamic symbol lookup in the kernel VDSO page.
>+//
>+// VDSO stands for "Virtual Dynamic Shared Object" -- a page of
>+// executable code, which looks like a shared library, but doesn't
>+// necessarily exist anywhere on disk, and which gets mmap()ed into
>+// every process by kernels which support VDSO, such as 2.6.x for 32-bit
>+// executables, and 2.6.24 and above for 64-bit executables.
>+//
>+// More details could be found here:
>+// http://www.trilithium.com/johan/2005/08/linux-gate/
>+//
>+// VDSOSupport -- a class representing kernel VDSO (if present).
>+//
>+// Example usage:
>+//  VDSOSupport vdso;
>+//  VDSOSupport::SymbolInfo info;
>+//  typedef (*FN)(unsigned *, void *, void *);
>+//  FN fn = nullptr;
>+//  if (vdso.LookupSymbol("__vdso_getcpu", "LINUX_2.6", STT_FUNC, &info)) {
>+//     fn = reinterpret_cast<FN>(info.address);
>+//  }
>+
>+#ifndef ABSL_DEBUGGING_INTERNAL_VDSO_SUPPORT_H_
>+#define ABSL_DEBUGGING_INTERNAL_VDSO_SUPPORT_H_
>+
>+#include <atomic>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/debugging/internal/elf_mem_image.h"
>+
>+#ifdef ABSL_HAVE_ELF_MEM_IMAGE
>+
>+#ifdef ABSL_HAVE_VDSO_SUPPORT
>+#error ABSL_HAVE_VDSO_SUPPORT cannot be directly set
>+#else
>+#define ABSL_HAVE_VDSO_SUPPORT 1
>+#endif
>+
>+namespace absl {
>+namespace debugging_internal {
>+
>+// NOTE: this class may be used from within tcmalloc, and can not
>+// use any memory allocation routines.
>+class VDSOSupport {
>+ public:
>+  VDSOSupport();
>+
>+  typedef ElfMemImage::SymbolInfo SymbolInfo;
>+  typedef ElfMemImage::SymbolIterator SymbolIterator;
>+
>+  // On PowerPC64 VDSO symbols can either be of type STT_FUNC or STT_NOTYPE
>+  // depending on how the kernel is built.  The kernel is normally built with
>+  // STT_NOTYPE type VDSO symbols.  Let's make things simpler first by using a
>+  // compile-time constant.
>+#ifdef __powerpc64__
>+  enum { kVDSOSymbolType = STT_NOTYPE };
>+#else
>+  enum { kVDSOSymbolType = STT_FUNC };
>+#endif
>+
>+  // Answers whether we have a vdso at all.
>+  bool IsPresent() const { return image_.IsPresent(); }
>+
>+  // Allow to iterate over all VDSO symbols.
>+  SymbolIterator begin() const { return image_.begin(); }
>+  SymbolIterator end() const { return image_.end(); }
>+
>+  // Look up versioned dynamic symbol in the kernel VDSO.
>+  // Returns false if VDSO is not present, or doesn't contain given
>+  // symbol/version/type combination.
>+  // If info_out != nullptr, additional details are filled in.
>+  bool LookupSymbol(const char *name, const char *version,
>+                    int symbol_type, SymbolInfo *info_out) const;
>+
>+  // Find info about symbol (if any) which overlaps given address.
>+  // Returns true if symbol was found; false if VDSO isn't present
>+  // or doesn't have a symbol overlapping given address.
>+  // If info_out != nullptr, additional details are filled in.
>+  bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const;
>+
>+  // Used only for testing. Replace real VDSO base with a mock.
>+  // Returns previous value of vdso_base_. After you are done testing,
>+  // you are expected to call SetBase() with previous value, in order to
>+  // reset state to the way it was.
>+  const void *SetBase(const void *s);
>+
>+  // Computes vdso_base_ and returns it. Should be called as early as
>+  // possible; before any thread creation, chroot or setuid.
>+  static const void *Init();
>+
>+ private:
>+  // image_ represents VDSO ELF image in memory.
>+  // image_.ehdr_ == nullptr implies there is no VDSO.
>+  ElfMemImage image_;
>+
>+  // Cached value of auxv AT_SYSINFO_EHDR, computed once.
>+  // This is a tri-state:
>+  //   kInvalidBase   => value hasn't been determined yet.
>+  //              0   => there is no VDSO.
>+  //           else   => vma of VDSO Elf{32,64}_Ehdr.
>+  //
>+  // When testing with mock VDSO, low bit is set.
>+  // The low bit is always available because vdso_base_ is
>+  // page-aligned.
>+  static std::atomic<const void *> vdso_base_;
>+
>+  // NOLINT on 'long' because these routines mimic kernel api.
>+  // The 'cache' parameter may be used by some versions of the kernel,
>+  // and should be nullptr or point to a static buffer containing at
>+  // least two 'long's.
>+  static long InitAndGetCPU(unsigned *cpu, void *cache,     // NOLINT 'long'.
>+                            void *unused);
>+  static long GetCPUViaSyscall(unsigned *cpu, void *cache,  // NOLINT 'long'.
>+                               void *unused);
>+  typedef long (*GetCpuFn)(unsigned *cpu, void *cache,      // NOLINT 'long'.
>+                           void *unused);
>+
>+  // This function pointer may point to InitAndGetCPU,
>+  // GetCPUViaSyscall, or __vdso_getcpu at different stages of initialization.
>+  ABSL_CONST_INIT static std::atomic<GetCpuFn> getcpu_fn_;
>+
>+  friend int GetCPU(void);  // Needs access to getcpu_fn_.
>+
>+  VDSOSupport(const VDSOSupport&) = delete;
>+  VDSOSupport& operator=(const VDSOSupport&) = delete;
>+};
>+
>+// Same as sched_getcpu() on later glibc versions.
>+// Return current CPU, using (fast) __vdso_getcpu@LINUX_2.6 if present,
>+// otherwise use syscall(SYS_getcpu,...).
>+// May return -1 with errno == ENOSYS if the kernel doesn't
>+// support SYS_getcpu.
>+int GetCPU();
>+
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_ELF_MEM_IMAGE
>+
>+#endif  // ABSL_DEBUGGING_INTERNAL_VDSO_SUPPORT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e01e5f8c937ec1ef56eaca37c171f3de91084cca
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.cc
>@@ -0,0 +1,48 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+// Wrappers around lsan_interface functions.
>+// When lsan is not linked in, these functions are not available,
>+// therefore Abseil code which depends on these functions is conditioned on the
>+// definition of LEAK_SANITIZER.
>+#include "absl/debugging/leak_check.h"
>+
>+#ifndef LEAK_SANITIZER
>+
>+namespace absl {
>+bool HaveLeakSanitizer() { return false; }
>+void DoIgnoreLeak(const void*) { }
>+void RegisterLivePointers(const void*, size_t) { }
>+void UnRegisterLivePointers(const void*, size_t) { }
>+LeakCheckDisabler::LeakCheckDisabler() { }
>+LeakCheckDisabler::~LeakCheckDisabler() { }
>+}  // namespace absl
>+
>+#else
>+
>+#include <sanitizer/lsan_interface.h>
>+
>+namespace absl {
>+bool HaveLeakSanitizer() { return true; }
>+void DoIgnoreLeak(const void* ptr) { __lsan_ignore_object(ptr); }
>+void RegisterLivePointers(const void* ptr, size_t size) {
>+  __lsan_register_root_region(ptr, size);
>+}
>+void UnRegisterLivePointers(const void* ptr, size_t size) {
>+  __lsan_unregister_root_region(ptr, size);
>+}
>+LeakCheckDisabler::LeakCheckDisabler() { __lsan_disable(); }
>+LeakCheckDisabler::~LeakCheckDisabler() { __lsan_enable(); }
>+}  // namespace absl
>+
>+#endif  // LEAK_SANITIZER
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c930684e9598d74868f89ee7efb77d5bada56da6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check.h
>@@ -0,0 +1,109 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: leak_check.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains functions that affect leak checking behavior within
>+// targets built with the LeakSanitizer (LSan), a memory leak detector that is
>+// integrated within the AddressSanitizer (ASan) as an additional component, or
>+// which can be used standalone. LSan and ASan are included (or can be provided)
>+// as additional components for most compilers such as Clang, gcc and MSVC.
>+// Note: this leak checking API is not yet supported in MSVC.
>+// Leak checking is enabled by default in all ASan builds.
>+//
>+// See https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer
>+//
>+// -----------------------------------------------------------------------------
>+#ifndef ABSL_DEBUGGING_LEAK_CHECK_H_
>+#define ABSL_DEBUGGING_LEAK_CHECK_H_
>+
>+#include <cstddef>
>+
>+namespace absl {
>+
>+// HaveLeakSanitizer()
>+//
>+// Returns true if a leak-checking sanitizer (either ASan or standalone LSan) is
>+// currently built into this target.
>+bool HaveLeakSanitizer();
>+
>+// DoIgnoreLeak()
>+//
>+// Implements `IgnoreLeak()` below. This function should usually
>+// not be called directly; calling `IgnoreLeak()` is preferred.
>+void DoIgnoreLeak(const void* ptr);
>+
>+// IgnoreLeak()
>+//
>+// Instruct the leak sanitizer to ignore leak warnings on the object referenced
>+// by the passed pointer, as well as all heap objects transitively referenced
>+// by it. The passed object pointer can point to either the beginning of the
>+// object or anywhere within it.
>+//
>+// Example:
>+//
>+//   static T* obj = IgnoreLeak(new T(...));
>+//
>+// If the passed `ptr` does not point to an actively allocated object at the
>+// time `IgnoreLeak()` is called, the call is a no-op; if it is actively
>+// allocated, the object must not get deallocated later.
>+//
>+template <typename T>
>+T* IgnoreLeak(T* ptr) {
>+  DoIgnoreLeak(ptr);
>+  return ptr;
>+}
>+
>+// LeakCheckDisabler
>+//
>+// This helper class indicates that any heap allocations done in the code block
>+// covered by the scoped object, which should be allocated on the stack, will
>+// not be reported as leaks. Leak check disabling will occur within the code
>+// block and any nested function calls within the code block.
>+//
>+// Example:
>+//
>+//   void Foo() {
>+//     LeakCheckDisabler disabler;
>+//     ... code that allocates objects whose leaks should be ignored ...
>+//   }
>+//
>+// REQUIRES: Destructor runs in same thread as constructor
>+class LeakCheckDisabler {
>+ public:
>+  LeakCheckDisabler();
>+  LeakCheckDisabler(const LeakCheckDisabler&) = delete;
>+  LeakCheckDisabler& operator=(const LeakCheckDisabler&) = delete;
>+  ~LeakCheckDisabler();
>+};
>+
>+// RegisterLivePointers()
>+//
>+// Registers `ptr[0,size-1]` as pointers to memory that is still actively being
>+// referenced and for which leak checking should be ignored. This function is
>+// useful if you store pointers in mapped memory, for memory ranges that we know
>+// are correct but for which normal analysis would flag as leaked code.
>+void RegisterLivePointers(const void* ptr, size_t size);
>+
>+// UnRegisterLivePointers()
>+//
>+// Deregisters the pointers previously marked as active in
>+// `RegisterLivePointers()`, enabling leak checking of those pointers.
>+void UnRegisterLivePointers(const void* ptr, size_t size);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_LEAK_CHECK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_disable.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_disable.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..df22c1cae91d29e3a749f56e9c3b086528c639d8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_disable.cc
>@@ -0,0 +1,20 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Disable LeakSanitizer when this file is linked in.
>+// This function overrides __lsan_is_turned_off from sanitizer/lsan_interface.h
>+extern "C" int __lsan_is_turned_off();
>+extern "C" int __lsan_is_turned_off() {
>+  return 1;
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_fail_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_fail_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..bf541fe84153cd1d6882ae9eb042f8ee1e224b1a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_fail_test.cc
>@@ -0,0 +1,41 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <memory>
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/debugging/leak_check.h"
>+
>+namespace {
>+
>+TEST(LeakCheckTest, LeakMemory) {
>+  // This test is expected to cause lsan failures on program exit. Therefore the
>+  // test will be run only by leak_check_test.sh, which will verify a
>+  // failed exit code.
>+
>+  char* foo = strdup("lsan should complain about this leaked string");
>+  ABSL_RAW_LOG(INFO, "Should detect leaked std::string %s", foo);
>+}
>+
>+TEST(LeakCheckTest, LeakMemoryAfterDisablerScope) {
>+  // This test is expected to cause lsan failures on program exit. Therefore the
>+  // test will be run only by external_leak_check_test.sh, which will verify a
>+  // failed exit code.
>+  { absl::LeakCheckDisabler disabler; }
>+  char* foo = strdup("lsan should also complain about this leaked string");
>+  ABSL_RAW_LOG(INFO, "Re-enabled leak detection.Should detect leaked std::string %s",
>+               foo);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..febd1ee4f928d3d9b85dc7a87ddc7e89b113ea32
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/leak_check_test.cc
>@@ -0,0 +1,42 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/debugging/leak_check.h"
>+
>+namespace {
>+
>+TEST(LeakCheckTest, DetectLeakSanitizer) {
>+#ifdef ABSL_EXPECT_LEAK_SANITIZER
>+  EXPECT_TRUE(absl::HaveLeakSanitizer());
>+#else
>+  EXPECT_FALSE(absl::HaveLeakSanitizer());
>+#endif
>+}
>+
>+TEST(LeakCheckTest, IgnoreLeakSuppressesLeakedMemoryErrors) {
>+  auto foo = absl::IgnoreLeak(new std::string("some ignored leaked string"));
>+  ABSL_RAW_LOG(INFO, "Ignoring leaked std::string %s", foo->c_str());
>+}
>+
>+TEST(LeakCheckTest, LeakCheckDisablerIgnoresLeak) {
>+  absl::LeakCheckDisabler disabler;
>+  auto foo = new std::string("some std::string leaked while checks are disabled");
>+  ABSL_RAW_LOG(INFO, "Ignoring leaked std::string %s", foo->c_str());
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..61fee6190f545842adc362c8fcfcec5c0e75658a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.cc
>@@ -0,0 +1,133 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Produce stack trace.
>+//
>+// There are three different ways we can try to get the stack trace:
>+//
>+// 1) Our hand-coded stack-unwinder.  This depends on a certain stack
>+//    layout, which is used by gcc (and those systems using a
>+//    gcc-compatible ABI) on x86 systems, at least since gcc 2.95.
>+//    It uses the frame pointer to do its work.
>+//
>+// 2) The libunwind library.  This is still in development, and as a
>+//    separate library adds a new dependency, but doesn't need a frame
>+//    pointer.  It also doesn't call malloc.
>+//
>+// 3) The gdb unwinder -- also the one used by the c++ exception code.
>+//    It's obviously well-tested, but has a fatal flaw: it can call
>+//    malloc() from the unwinder.  This is a problem because we're
>+//    trying to use the unwinder to instrument malloc().
>+//
>+// Note: if you add a new implementation here, make sure it works
>+// correctly when absl::GetStackTrace() is called with max_depth == 0.
>+// Some code may do that.
>+
>+#include "absl/debugging/stacktrace.h"
>+
>+#include <atomic>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/port.h"
>+#include "absl/debugging/internal/stacktrace_config.h"
>+
>+#if defined(ABSL_STACKTRACE_INL_HEADER)
>+#include ABSL_STACKTRACE_INL_HEADER
>+#else
>+# error Cannot calculate stack trace: will need to write for your environment
>+# include "absl/debugging/internal/stacktrace_aarch64-inl.inc"
>+# include "absl/debugging/internal/stacktrace_arm-inl.inc"
>+# include "absl/debugging/internal/stacktrace_generic-inl.inc"
>+# include "absl/debugging/internal/stacktrace_powerpc-inl.inc"
>+# include "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
>+# include "absl/debugging/internal/stacktrace_win32-inl.inc"
>+# include "absl/debugging/internal/stacktrace_x86-inl.inc"
>+#endif
>+
>+namespace absl {
>+namespace {
>+
>+typedef int (*Unwinder)(void**, int*, int, int, const void*, int*);
>+std::atomic<Unwinder> custom;
>+
>+template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
>+ABSL_ATTRIBUTE_ALWAYS_INLINE inline int Unwind(void** result, int* sizes,
>+                                               int max_depth, int skip_count,
>+                                               const void* uc,
>+                                               int* min_dropped_frames) {
>+  Unwinder f = &UnwindImpl<IS_STACK_FRAMES, IS_WITH_CONTEXT>;
>+  Unwinder g = custom.load(std::memory_order_acquire);
>+  if (g != nullptr) f = g;
>+
>+  // Add 1 to skip count for the unwinder function itself
>+  int size = (*f)(result, sizes, max_depth, skip_count + 1, uc,
>+                  min_dropped_frames);
>+  // To disable tail call to (*f)(...)
>+  ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
>+  return size;
>+}
>+
>+}  // anonymous namespace
>+
>+int GetStackFrames(void** result, int* sizes, int max_depth, int skip_count) {
>+  return Unwind<true, false>(result, sizes, max_depth, skip_count, nullptr,
>+                             nullptr);
>+}
>+
>+int GetStackFramesWithContext(void** result, int* sizes, int max_depth,
>+                              int skip_count, const void* uc,
>+                              int* min_dropped_frames) {
>+  return Unwind<true, true>(result, sizes, max_depth, skip_count, uc,
>+                            min_dropped_frames);
>+}
>+
>+int GetStackTrace(void** result, int max_depth, int skip_count) {
>+  return Unwind<false, false>(result, nullptr, max_depth, skip_count, nullptr,
>+                              nullptr);
>+}
>+
>+int GetStackTraceWithContext(void** result, int max_depth, int skip_count,
>+                             const void* uc, int* min_dropped_frames) {
>+  return Unwind<false, true>(result, nullptr, max_depth, skip_count, uc,
>+                             min_dropped_frames);
>+}
>+
>+void SetStackUnwinder(Unwinder w) {
>+  custom.store(w, std::memory_order_release);
>+}
>+
>+int DefaultStackUnwinder(void** pcs, int* sizes, int depth, int skip,
>+                         const void* uc, int* min_dropped_frames) {
>+  skip++;  // For this function
>+  Unwinder f = nullptr;
>+  if (sizes == nullptr) {
>+    if (uc == nullptr) {
>+      f = &UnwindImpl<false, false>;
>+    } else {
>+      f = &UnwindImpl<false, true>;
>+    }
>+  } else {
>+    if (uc == nullptr) {
>+      f = &UnwindImpl<true, false>;
>+    } else {
>+      f = &UnwindImpl<true, true>;
>+    }
>+  }
>+  volatile int x = 0;
>+  int n = (*f)(pcs, sizes, depth, skip, uc, min_dropped_frames);
>+  x = 1; (void) x;  // To disable tail call to (*f)(...)
>+  return n;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8b831e2681558702f454d5dbd3e37e8e293e2a3d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/stacktrace.h
>@@ -0,0 +1,225 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: stacktrace.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains routines to extract the current stack trace and associated
>+// stack frames. These functions are thread-safe and async-signal-safe.
>+//
>+// Note that stack trace functionality is platform dependent and requires
>+// additional support from the compiler/build system in most cases. (That is,
>+// this functionality generally only works on platforms/builds that have been
>+// specifically configured to support it.)
>+//
>+// Note: stack traces in Abseil that do not utilize a symbolizer will result in
>+// frames consisting of function addresses rather than human-readable function
>+// names. (See symbolize.h for information on symbolizing these values.)
>+
>+#ifndef ABSL_DEBUGGING_STACKTRACE_H_
>+#define ABSL_DEBUGGING_STACKTRACE_H_
>+
>+namespace absl {
>+
>+// GetStackFrames()
>+//
>+// Records program counter values for up to `max_depth` frames, skipping the
>+// most recent `skip_count` stack frames, and stores their corresponding values
>+// and sizes in `results` and `sizes` buffers. (Note that the frame generated
>+// for the `absl::GetStackFrames()` routine itself is also skipped.)
>+// routine itself.
>+//
>+// Example:
>+//
>+//      main() { foo(); }
>+//      foo() { bar(); }
>+//      bar() {
>+//        void* result[10];
>+//        int sizes[10];
>+//        int depth = absl::GetStackFrames(result, sizes, 10, 1);
>+//      }
>+//
>+// The current stack frame would consist of three function calls: `bar()`,
>+// `foo()`, and then `main()`; however, since the `GetStackFrames()` call sets
>+// `skip_count` to `1`, it will skip the frame for `bar()`, the most recently
>+// invoked function call. It will therefore return two program counters and will
>+// produce values that map to the following function calls:
>+//
>+//      result[0]       foo()
>+//      result[1]       main()
>+//
>+// (Note: in practice, a few more entries after `main()` may be added to account
>+// for startup processes.)
>+//
>+// Corresponding stack frame sizes will also be recorded:
>+//
>+//    sizes[0]       16
>+//    sizes[1]       16
>+//
>+// (Stack frame sizes of `16` above are just for illustration purposes.)
>+//
>+// Stack frame sizes of 0 or less indicate that those frame sizes couldn't
>+// be identified.
>+//
>+// This routine may return fewer stack frame entries than are
>+// available. Also note that `result` and `sizes` must both be non-null.
>+extern int GetStackFrames(void** result, int* sizes, int max_depth,
>+                          int skip_count);
>+
>+// GetStackFramesWithContext()
>+//
>+// Records program counter values obtained from a signal handler. Records
>+// program counter values for up to `max_depth` frames, skipping the most recent
>+// `skip_count` stack frames, and stores their corresponding values and sizes in
>+// `results` and `sizes` buffers. (Note that the frame generated for the
>+// `absl::GetStackFramesWithContext()` routine itself is also skipped.)
>+//
>+// The `uc` parameter, if non-null, should be a pointer to a `ucontext_t` value
>+// passed to a signal handler registered via the `sa_sigaction` field of a
>+// `sigaction` struct. (See
>+// http://man7.org/linux/man-pages/man2/sigaction.2.html.) The `uc` value may
>+// help a stack unwinder to provide a better stack trace under certain
>+// conditions. `uc` may safely be null.
>+//
>+// The `min_dropped_frames` output parameter, if non-null, points to the
>+// location to note any dropped stack frames, if any, due to buffer limitations
>+// or other reasons. (This value will be set to `0` if no frames were dropped.)
>+// The number of total stack frames is guaranteed to be >= skip_count +
>+// max_depth + *min_dropped_frames.
>+extern int GetStackFramesWithContext(void** result, int* sizes, int max_depth,
>+                                     int skip_count, const void* uc,
>+                                     int* min_dropped_frames);
>+
>+// GetStackTrace()
>+//
>+// Records program counter values for up to `max_depth` frames, skipping the
>+// most recent `skip_count` stack frames, and stores their corresponding values
>+// in `results`. Note that this function is similar to `absl::GetStackFrames()`
>+// except that it returns the stack trace only, and not stack frame sizes.
>+//
>+// Example:
>+//
>+//      main() { foo(); }
>+//      foo() { bar(); }
>+//      bar() {
>+//        void* result[10];
>+//        int depth = absl::GetStackTrace(result, 10, 1);
>+//      }
>+//
>+// This produces:
>+//
>+//      result[0]       foo
>+//      result[1]       main
>+//           ....       ...
>+//
>+// `result` must not be null.
>+extern int GetStackTrace(void** result, int max_depth, int skip_count);
>+
>+// GetStackTraceWithContext()
>+//
>+// Records program counter values obtained from a signal handler. Records
>+// program counter values for up to `max_depth` frames, skipping the most recent
>+// `skip_count` stack frames, and stores their corresponding values in
>+// `results`. (Note that the frame generated for the
>+// `absl::GetStackFramesWithContext()` routine itself is also skipped.)
>+//
>+// The `uc` parameter, if non-null, should be a pointer to a `ucontext_t` value
>+// passed to a signal handler registered via the `sa_sigaction` field of a
>+// `sigaction` struct. (See
>+// http://man7.org/linux/man-pages/man2/sigaction.2.html.) The `uc` value may
>+// help a stack unwinder to provide a better stack trace under certain
>+// conditions. `uc` may safely be null.
>+//
>+// The `min_dropped_frames` output parameter, if non-null, points to the
>+// location to note any dropped stack frames, if any, due to buffer limitations
>+// or other reasons. (This value will be set to `0` if no frames were dropped.)
>+// The number of total stack frames is guaranteed to be >= skip_count +
>+// max_depth + *min_dropped_frames.
>+extern int GetStackTraceWithContext(void** result, int max_depth,
>+                                    int skip_count, const void* uc,
>+                                    int* min_dropped_frames);
>+
>+// SetStackUnwinder()
>+//
>+// Provides a custom function for unwinding stack frames that will be used in
>+// place of the default stack unwinder when invoking the static
>+// GetStack{Frames,Trace}{,WithContext}() functions above.
>+//
>+// The arguments passed to the unwinder function will match the
>+// arguments passed to `absl::GetStackFramesWithContext()` except that sizes
>+// will be non-null iff the caller is interested in frame sizes.
>+//
>+// If unwinder is set to null, we revert to the default stack-tracing behavior.
>+//
>+// *****************************************************************************
>+// WARNING
>+// *****************************************************************************
>+//
>+// absl::SetStackUnwinder is not suitable for general purpose use.  It is
>+// provided for custom runtimes.
>+// Some things to watch out for when calling `absl::SetStackUnwinder()`:
>+//
>+// (a) The unwinder may be called from within signal handlers and
>+// therefore must be async-signal-safe.
>+//
>+// (b) Even after a custom stack unwinder has been unregistered, other
>+// threads may still be in the process of using that unwinder.
>+// Therefore do not clean up any state that may be needed by an old
>+// unwinder.
>+// *****************************************************************************
>+extern void SetStackUnwinder(int (*unwinder)(void** pcs, int* sizes,
>+                                             int max_depth, int skip_count,
>+                                             const void* uc,
>+                                             int* min_dropped_frames));
>+
>+// DefaultStackUnwinder()
>+//
>+// Records program counter values of up to `max_depth` frames, skipping the most
>+// recent `skip_count` stack frames, and stores their corresponding values in
>+// `pcs`. (Note that the frame generated for this call itself is also skipped.)
>+// This function acts as a generic stack-unwinder; prefer usage of the more
>+// specific `GetStack{Trace,Frames}{,WithContext}()` functions above.
>+//
>+// If you have set your own stack unwinder (with the `SetStackUnwinder()`
>+// function above, you can still get the default stack unwinder by calling
>+// `DefaultStackUnwinder()`, which will ignore any previously set stack unwinder
>+// and use the default one instead.
>+//
>+// Because this function is generic, only `pcs` is guaranteed to be non-null
>+// upon return. It is legal for `sizes`, `uc`, and `min_dropped_frames` to all
>+// be null when called.
>+//
>+// The semantics are the same as the corresponding `GetStack*()` function in the
>+// case where `absl::SetStackUnwinder()` was never called. Equivalents are:
>+//
>+//                       null sizes         |        non-nullptr sizes
>+//             |==========================================================|
>+//     null uc | GetStackTrace()            | GetStackFrames()            |
>+// non-null uc | GetStackTraceWithContext() | GetStackFramesWithContext() |
>+//             |==========================================================|
>+extern int DefaultStackUnwinder(void** pcs, int* sizes, int max_depth,
>+                                int skip_count, const void* uc,
>+                                int* min_dropped_frames);
>+
>+namespace debugging_internal {
>+// Returns true for platforms which are expected to have functioning stack trace
>+// implementations. Intended to be used for tests which want to exclude
>+// verification of logic known to be broken because stack traces are not
>+// working.
>+extern bool StackTraceWorksForTest();
>+}  // namespace debugging_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_STACKTRACE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a35e24cc29a4b7851d40e652c387836fb5080225
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.cc
>@@ -0,0 +1,28 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/debugging/symbolize.h"
>+
>+#if defined(ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE)
>+#include "absl/debugging/symbolize_elf.inc"
>+#elif defined(_WIN32) && defined(_DEBUG)
>+// The Windows Symbolizer only works in debug mode. Note that _DEBUG
>+// is the macro that defines whether or not MS C-Runtime debug info is
>+// available. Note that the PDB files containing the debug info must
>+// also be available to the program at runtime for the symbolizer to
>+// work.
>+#include "absl/debugging/symbolize_win32.inc"
>+#else
>+#include "absl/debugging/symbolize_unimplemented.inc"
>+#endif
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..24e6e6471c6580c065b570d8519342d7cb58c85f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize.h
>@@ -0,0 +1,97 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: symbolize.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file configures the Abseil symbolizer for use in converting instruction
>+// pointer addresses (program counters) into human-readable names (function
>+// calls, etc.) within Abseil code.
>+//
>+// The symbolizer may be invoked from several sources:
>+//
>+//   * Implicitly, through the installation of an Abseil failure signal handler.
>+//     (See failure_signal_handler.h for more information.)
>+//   * By calling `Symbolize()` directly on a program counter you obtain through
>+//     `absl::GetStackTrace()` or `absl::GetStackFrames()`. (See stacktrace.h
>+//     for more information.
>+//   * By calling `Symbolize()` directly on a program counter you obtain through
>+//     other means (which would be platform-dependent).
>+//
>+// In all of the above cases, the symbolizer must first be initialized before
>+// any program counter values can be symbolized. If you are installing a failure
>+// signal handler, initialize the symbolizer before you do so.
>+//
>+// Example:
>+//
>+//   int main(int argc, char** argv) {
>+//     // Initialize the Symbolizer before installing the failure signal handler
>+//     absl::InitializeSymbolizer(argv[0]);
>+//
>+//     // Now you may install the failure signal handler
>+//     absl::FailureSignalHandlerOptions options;
>+//     absl::InstallFailureSignalHandler(options);
>+//
>+//     // Start running your main program
>+//     ...
>+//     return 0;
>+//  }
>+//
>+#ifndef ABSL_DEBUGGING_SYMBOLIZE_H_
>+#define ABSL_DEBUGGING_SYMBOLIZE_H_
>+
>+#include "absl/debugging/internal/symbolize.h"
>+
>+namespace absl {
>+
>+// InitializeSymbolizer()
>+//
>+// Initializes the program counter symbolizer, given the path of the program
>+// (typically obtained through `main()`s `argv[0]`). The Abseil symbolizer
>+// allows you to read program counters (instruction pointer values) using their
>+// human-readable names within output such as stack traces.
>+//
>+// Example:
>+//
>+// int main(int argc, char *argv[]) {
>+//   absl::InitializeSymbolizer(argv[0]);
>+//   // Now you can use the symbolizer
>+// }
>+void InitializeSymbolizer(const char* argv0);
>+
>+// Symbolize()
>+//
>+// Symbolizes a program counter (instruction pointer value) `pc` and, on
>+// success, writes the name to `out`. The symbol name is demangled, if possible.
>+// Note that the symbolized name may be truncated and will be NUL-terminated.
>+// Demangling is supported for symbols generated by GCC 3.x or newer). Returns
>+// `false` on failure.
>+//
>+// Example:
>+//
>+//   // Print a program counter and its symbol name.
>+//   static void DumpPCAndSymbol(void *pc) {
>+//     char tmp[1024];
>+//     const char *symbol = "(unknown)";
>+//     if (absl::Symbolize(pc, tmp, sizeof(tmp))) {
>+//       symbol = tmp;
>+//     }
>+//     absl::PrintF("%*p  %s\n", pc, symbol);
>+//  }
>+bool Symbolize(const void *pc, char *out, int out_size);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_DEBUGGING_SYMBOLIZE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_elf.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_elf.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b16a42a62c95f50fdcb4914ef41f278cc410243e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_elf.inc
>@@ -0,0 +1,1473 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This library provides Symbolize() function that symbolizes program
>+// counters to their corresponding symbol names on linux platforms.
>+// This library has a minimal implementation of an ELF symbol table
>+// reader (i.e. it doesn't depend on libelf, etc.).
>+//
>+// The algorithm used in Symbolize() is as follows.
>+//
>+//   1. Go through a list of maps in /proc/self/maps and find the map
>+//   containing the program counter.
>+//
>+//   2. Open the mapped file and find a regular symbol table inside.
>+//   Iterate over symbols in the symbol table and look for the symbol
>+//   containing the program counter.  If such a symbol is found,
>+//   obtain the symbol name, and demangle the symbol if possible.
>+//   If the symbol isn't found in the regular symbol table (binary is
>+//   stripped), try the same thing with a dynamic symbol table.
>+//
>+// Note that Symbolize() is originally implemented to be used in
>+// signal handlers, hence it doesn't use malloc() and other unsafe
>+// operations.  It should be both thread-safe and async-signal-safe.
>+//
>+// Implementation note:
>+//
>+// We don't use heaps but only use stacks.  We want to reduce the
>+// stack consumption so that the symbolizer can run on small stacks.
>+//
>+// Here are some numbers collected with GCC 4.1.0 on x86:
>+// - sizeof(Elf32_Sym)  = 16
>+// - sizeof(Elf32_Shdr) = 40
>+// - sizeof(Elf64_Sym)  = 24
>+// - sizeof(Elf64_Shdr) = 64
>+//
>+// This implementation is intended to be async-signal-safe but uses some
>+// functions which are not guaranteed to be so, such as memchr() and
>+// memmove().  We assume they are async-signal-safe.
>+
>+#include <dlfcn.h>
>+#include <elf.h>
>+#include <fcntl.h>
>+#include <link.h>  // For ElfW() macro.
>+#include <sys/stat.h>
>+#include <sys/types.h>
>+#include <unistd.h>
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cerrno>
>+#include <cinttypes>
>+#include <climits>
>+#include <cstdint>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+
>+#include "absl/base/casts.h"
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/low_level_alloc.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/port.h"
>+#include "absl/debugging/internal/demangle.h"
>+#include "absl/debugging/internal/vdso_support.h"
>+
>+namespace absl {
>+
>+// Value of argv[0]. Used by MaybeInitializeObjFile().
>+static char *argv0_value = nullptr;
>+
>+void InitializeSymbolizer(const char *argv0) {
>+  if (argv0_value != nullptr) {
>+    free(argv0_value);
>+    argv0_value = nullptr;
>+  }
>+  if (argv0 != nullptr && argv0[0] != '\0') {
>+    argv0_value = strdup(argv0);
>+  }
>+}
>+
>+namespace debugging_internal {
>+namespace {
>+
>+// Re-runs fn until it doesn't cause EINTR.
>+#define NO_INTR(fn) \
>+  do {              \
>+  } while ((fn) < 0 && errno == EINTR)
>+
>+// On Linux, ELF_ST_* are defined in <linux/elf.h>.  To make this portable
>+// we define our own ELF_ST_BIND and ELF_ST_TYPE if not available.
>+#ifndef ELF_ST_BIND
>+#define ELF_ST_BIND(info) (((unsigned char)(info)) >> 4)
>+#endif
>+
>+#ifndef ELF_ST_TYPE
>+#define ELF_ST_TYPE(info) (((unsigned char)(info)) & 0xF)
>+#endif
>+
>+// Some platforms use a special .opd section to store function pointers.
>+const char kOpdSectionName[] = ".opd";
>+
>+#if (defined(__powerpc__) && !(_CALL_ELF > 1)) || defined(__ia64)
>+// Use opd section for function descriptors on these platforms, the function
>+// address is the first word of the descriptor.
>+enum { kPlatformUsesOPDSections = 1 };
>+#else  // not PPC or IA64
>+enum { kPlatformUsesOPDSections = 0 };
>+#endif
>+
>+// This works for PowerPC & IA64 only.  A function descriptor consist of two
>+// pointers and the first one is the function's entry.
>+const size_t kFunctionDescriptorSize = sizeof(void *) * 2;
>+
>+const int kMaxDecorators = 10;  // Seems like a reasonable upper limit.
>+
>+struct InstalledSymbolDecorator {
>+  SymbolDecorator fn;
>+  void *arg;
>+  int ticket;
>+};
>+
>+int g_num_decorators;
>+InstalledSymbolDecorator g_decorators[kMaxDecorators];
>+
>+struct FileMappingHint {
>+  const void *start;
>+  const void *end;
>+  uint64_t offset;
>+  const char *filename;
>+};
>+
>+// Protects g_decorators.
>+// We are using SpinLock and not a Mutex here, because we may be called
>+// from inside Mutex::Lock itself, and it prohibits recursive calls.
>+// This happens in e.g. base/stacktrace_syscall_unittest.
>+// Moreover, we are using only TryLock(), if the decorator list
>+// is being modified (is busy), we skip all decorators, and possibly
>+// loose some info. Sorry, that's the best we could do.
>+base_internal::SpinLock g_decorators_mu(base_internal::kLinkerInitialized);
>+
>+const int kMaxFileMappingHints = 8;
>+int g_num_file_mapping_hints;
>+FileMappingHint g_file_mapping_hints[kMaxFileMappingHints];
>+// Protects g_file_mapping_hints.
>+base_internal::SpinLock g_file_mapping_mu(base_internal::kLinkerInitialized);
>+
>+// Async-signal-safe function to zero a buffer.
>+// memset() is not guaranteed to be async-signal-safe.
>+static void SafeMemZero(void* p, size_t size) {
>+  unsigned char *c = static_cast<unsigned char *>(p);
>+  while (size--) {
>+    *c++ = 0;
>+  }
>+}
>+
>+struct ObjFile {
>+  ObjFile()
>+      : filename(nullptr),
>+        start_addr(nullptr),
>+        end_addr(nullptr),
>+        offset(0),
>+        fd(-1),
>+        elf_type(-1) {
>+    SafeMemZero(&elf_header, sizeof(elf_header));
>+  }
>+
>+  char *filename;
>+  const void *start_addr;
>+  const void *end_addr;
>+  uint64_t offset;
>+
>+  // The following fields are initialized on the first access to the
>+  // object file.
>+  int fd;
>+  int elf_type;
>+  ElfW(Ehdr) elf_header;
>+};
>+
>+// Build 4-way associative cache for symbols. Within each cache line, symbols
>+// are replaced in LRU order.
>+enum {
>+  ASSOCIATIVITY = 4,
>+};
>+struct SymbolCacheLine {
>+  const void *pc[ASSOCIATIVITY];
>+  char *name[ASSOCIATIVITY];
>+
>+  // age[i] is incremented when a line is accessed. it's reset to zero if the
>+  // i'th entry is read.
>+  uint32_t age[ASSOCIATIVITY];
>+};
>+
>+// ---------------------------------------------------------------
>+// An async-signal-safe arena for LowLevelAlloc
>+static std::atomic<base_internal::LowLevelAlloc::Arena *> g_sig_safe_arena;
>+
>+static base_internal::LowLevelAlloc::Arena *SigSafeArena() {
>+  return g_sig_safe_arena.load(std::memory_order_acquire);
>+}
>+
>+static void InitSigSafeArena() {
>+  if (SigSafeArena() == nullptr) {
>+    base_internal::LowLevelAlloc::Arena *new_arena =
>+        base_internal::LowLevelAlloc::NewArena(
>+            base_internal::LowLevelAlloc::kAsyncSignalSafe);
>+    base_internal::LowLevelAlloc::Arena *old_value = nullptr;
>+    if (!g_sig_safe_arena.compare_exchange_strong(old_value, new_arena,
>+                                                  std::memory_order_release,
>+                                                  std::memory_order_relaxed)) {
>+      // We lost a race to allocate an arena; deallocate.
>+      base_internal::LowLevelAlloc::DeleteArena(new_arena);
>+    }
>+  }
>+}
>+
>+// ---------------------------------------------------------------
>+// An AddrMap is a vector of ObjFile, using SigSafeArena() for allocation.
>+
>+class AddrMap {
>+ public:
>+  AddrMap() : size_(0), allocated_(0), obj_(nullptr) {}
>+  ~AddrMap() { base_internal::LowLevelAlloc::Free(obj_); }
>+  int Size() const { return size_; }
>+  ObjFile *At(int i) { return &obj_[i]; }
>+  ObjFile *Add();
>+  void Clear();
>+
>+ private:
>+  int size_;       // count of valid elements (<= allocated_)
>+  int allocated_;  // count of allocated elements
>+  ObjFile *obj_;   // array of allocated_ elements
>+  AddrMap(const AddrMap &) = delete;
>+  AddrMap &operator=(const AddrMap &) = delete;
>+};
>+
>+void AddrMap::Clear() {
>+  for (int i = 0; i != size_; i++) {
>+    At(i)->~ObjFile();
>+  }
>+  size_ = 0;
>+}
>+
>+ObjFile *AddrMap::Add() {
>+  if (size_ == allocated_) {
>+    int new_allocated = allocated_ * 2 + 50;
>+    ObjFile *new_obj_ =
>+        static_cast<ObjFile *>(base_internal::LowLevelAlloc::AllocWithArena(
>+            new_allocated * sizeof(*new_obj_), SigSafeArena()));
>+    if (obj_) {
>+      memcpy(new_obj_, obj_, allocated_ * sizeof(*new_obj_));
>+      base_internal::LowLevelAlloc::Free(obj_);
>+    }
>+    obj_ = new_obj_;
>+    allocated_ = new_allocated;
>+  }
>+  return new (&obj_[size_++]) ObjFile;
>+}
>+
>+// ---------------------------------------------------------------
>+
>+enum FindSymbolResult { SYMBOL_NOT_FOUND = 1, SYMBOL_TRUNCATED, SYMBOL_FOUND };
>+
>+class Symbolizer {
>+ public:
>+  Symbolizer();
>+  ~Symbolizer();
>+  const char *GetSymbol(const void *const pc);
>+
>+ private:
>+  char *CopyString(const char *s) {
>+    int len = strlen(s);
>+    char *dst = static_cast<char *>(
>+        base_internal::LowLevelAlloc::AllocWithArena(len + 1, SigSafeArena()));
>+    ABSL_RAW_CHECK(dst != nullptr, "out of memory");
>+    memcpy(dst, s, len + 1);
>+    return dst;
>+  }
>+  ObjFile *FindObjFile(const void *const start,
>+                       size_t size) ABSL_ATTRIBUTE_NOINLINE;
>+  static bool RegisterObjFile(const char *filename,
>+                              const void *const start_addr,
>+                              const void *const end_addr, uint64_t offset,
>+                              void *arg);
>+  SymbolCacheLine *GetCacheLine(const void *const pc);
>+  const char *FindSymbolInCache(const void *const pc);
>+  const char *InsertSymbolInCache(const void *const pc, const char *name);
>+  void AgeSymbols(SymbolCacheLine *line);
>+  void ClearAddrMap();
>+  FindSymbolResult GetSymbolFromObjectFile(const ObjFile &obj,
>+                                           const void *const pc,
>+                                           const ptrdiff_t relocation,
>+                                           char *out, int out_size,
>+                                           char *tmp_buf, int tmp_buf_size);
>+
>+  enum {
>+    SYMBOL_BUF_SIZE = 2048,
>+    TMP_BUF_SIZE = 1024,
>+    SYMBOL_CACHE_LINES = 128,
>+  };
>+
>+  AddrMap addr_map_;
>+
>+  bool ok_;
>+  bool addr_map_read_;
>+
>+  char symbol_buf_[SYMBOL_BUF_SIZE];
>+
>+  // tmp_buf_ will be used to store arrays of ElfW(Shdr) and ElfW(Sym)
>+  // so we ensure that tmp_buf_ is properly aligned to store either.
>+  alignas(16) char tmp_buf_[TMP_BUF_SIZE];
>+  static_assert(alignof(ElfW(Shdr)) <= 16,
>+                "alignment of tmp buf too small for Shdr");
>+  static_assert(alignof(ElfW(Sym)) <= 16,
>+                "alignment of tmp buf too small for Sym");
>+
>+  SymbolCacheLine symbol_cache_[SYMBOL_CACHE_LINES];
>+};
>+
>+static std::atomic<Symbolizer *> g_cached_symbolizer;
>+
>+}  // namespace
>+
>+static int SymbolizerSize() {
>+  int pagesize = getpagesize();
>+  return ((sizeof(Symbolizer) - 1) / pagesize + 1) * pagesize;
>+}
>+
>+// Return (and set null) g_cached_symbolized_state if it is not null.
>+// Otherwise return a new symbolizer.
>+static Symbolizer *AllocateSymbolizer() {
>+  InitSigSafeArena();
>+  Symbolizer *symbolizer =
>+      g_cached_symbolizer.exchange(nullptr, std::memory_order_acquire);
>+  if (symbolizer != nullptr) {
>+    return symbolizer;
>+  }
>+  return new (base_internal::LowLevelAlloc::AllocWithArena(
>+      SymbolizerSize(), SigSafeArena())) Symbolizer();
>+}
>+
>+// Set g_cached_symbolize_state to s if it is null, otherwise
>+// delete s.
>+static void FreeSymbolizer(Symbolizer *s) {
>+  Symbolizer *old_cached_symbolizer = nullptr;
>+  if (!g_cached_symbolizer.compare_exchange_strong(old_cached_symbolizer, s,
>+                                                   std::memory_order_release,
>+                                                   std::memory_order_relaxed)) {
>+    s->~Symbolizer();
>+    base_internal::LowLevelAlloc::Free(s);
>+  }
>+}
>+
>+Symbolizer::Symbolizer() : ok_(true), addr_map_read_(false) {
>+  for (SymbolCacheLine &symbol_cache_line : symbol_cache_) {
>+    for (size_t j = 0; j < ABSL_ARRAYSIZE(symbol_cache_line.name); ++j) {
>+      symbol_cache_line.pc[j] = nullptr;
>+      symbol_cache_line.name[j] = nullptr;
>+      symbol_cache_line.age[j] = 0;
>+    }
>+  }
>+}
>+
>+Symbolizer::~Symbolizer() {
>+  for (SymbolCacheLine &symbol_cache_line : symbol_cache_) {
>+    for (char *s : symbol_cache_line.name) {
>+      base_internal::LowLevelAlloc::Free(s);
>+    }
>+  }
>+  ClearAddrMap();
>+}
>+
>+// We don't use assert() since it's not guaranteed to be
>+// async-signal-safe.  Instead we define a minimal assertion
>+// macro. So far, we don't need pretty printing for __FILE__, etc.
>+#define SAFE_ASSERT(expr) ((expr) ? static_cast<void>(0) : abort())
>+
>+// Read up to "count" bytes from file descriptor "fd" into the buffer
>+// starting at "buf" while handling short reads and EINTR.  On
>+// success, return the number of bytes read.  Otherwise, return -1.
>+static ssize_t ReadPersistent(int fd, void *buf, size_t count) {
>+  SAFE_ASSERT(fd >= 0);
>+  SAFE_ASSERT(count <= SSIZE_MAX);
>+  char *buf0 = reinterpret_cast<char *>(buf);
>+  size_t num_bytes = 0;
>+  while (num_bytes < count) {
>+    ssize_t len;
>+    NO_INTR(len = read(fd, buf0 + num_bytes, count - num_bytes));
>+    if (len < 0) {  // There was an error other than EINTR.
>+      ABSL_RAW_LOG(WARNING, "read failed: errno=%d", errno);
>+      return -1;
>+    }
>+    if (len == 0) {  // Reached EOF.
>+      break;
>+    }
>+    num_bytes += len;
>+  }
>+  SAFE_ASSERT(num_bytes <= count);
>+  return static_cast<ssize_t>(num_bytes);
>+}
>+
>+// Read up to "count" bytes from "offset" in the file pointed by file
>+// descriptor "fd" into the buffer starting at "buf".  On success,
>+// return the number of bytes read.  Otherwise, return -1.
>+static ssize_t ReadFromOffset(const int fd, void *buf, const size_t count,
>+                              const off_t offset) {
>+  off_t off = lseek(fd, offset, SEEK_SET);
>+  if (off == (off_t)-1) {
>+    ABSL_RAW_LOG(WARNING, "lseek(%d, %ju, SEEK_SET) failed: errno=%d", fd,
>+                 static_cast<uintmax_t>(offset), errno);
>+    return -1;
>+  }
>+  return ReadPersistent(fd, buf, count);
>+}
>+
>+// Try reading exactly "count" bytes from "offset" bytes in a file
>+// pointed by "fd" into the buffer starting at "buf" while handling
>+// short reads and EINTR.  On success, return true. Otherwise, return
>+// false.
>+static bool ReadFromOffsetExact(const int fd, void *buf, const size_t count,
>+                                const off_t offset) {
>+  ssize_t len = ReadFromOffset(fd, buf, count, offset);
>+  return len >= 0 && static_cast<size_t>(len) == count;
>+}
>+
>+// Returns elf_header.e_type if the file pointed by fd is an ELF binary.
>+static int FileGetElfType(const int fd) {
>+  ElfW(Ehdr) elf_header;
>+  if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
>+    return -1;
>+  }
>+  if (memcmp(elf_header.e_ident, ELFMAG, SELFMAG) != 0) {
>+    return -1;
>+  }
>+  return elf_header.e_type;
>+}
>+
>+// Read the section headers in the given ELF binary, and if a section
>+// of the specified type is found, set the output to this section header
>+// and return true.  Otherwise, return false.
>+// To keep stack consumption low, we would like this function to not get
>+// inlined.
>+static ABSL_ATTRIBUTE_NOINLINE bool GetSectionHeaderByType(
>+    const int fd, ElfW(Half) sh_num, const off_t sh_offset, ElfW(Word) type,
>+    ElfW(Shdr) * out, char *tmp_buf, int tmp_buf_size) {
>+  ElfW(Shdr) *buf = reinterpret_cast<ElfW(Shdr) *>(tmp_buf);
>+  const int buf_entries = tmp_buf_size / sizeof(buf[0]);
>+  const int buf_bytes = buf_entries * sizeof(buf[0]);
>+
>+  for (int i = 0; i < sh_num;) {
>+    const ssize_t num_bytes_left = (sh_num - i) * sizeof(buf[0]);
>+    const ssize_t num_bytes_to_read =
>+        (buf_bytes > num_bytes_left) ? num_bytes_left : buf_bytes;
>+    const off_t offset = sh_offset + i * sizeof(buf[0]);
>+    const ssize_t len = ReadFromOffset(fd, buf, num_bytes_to_read, offset);
>+    if (len % sizeof(buf[0]) != 0) {
>+      ABSL_RAW_LOG(
>+          WARNING,
>+          "Reading %zd bytes from offset %ju returned %zd which is not a "
>+          "multiple of %zu.",
>+          num_bytes_to_read, static_cast<uintmax_t>(offset), len,
>+          sizeof(buf[0]));
>+      return false;
>+    }
>+    const ssize_t num_headers_in_buf = len / sizeof(buf[0]);
>+    SAFE_ASSERT(num_headers_in_buf <= buf_entries);
>+    for (int j = 0; j < num_headers_in_buf; ++j) {
>+      if (buf[j].sh_type == type) {
>+        *out = buf[j];
>+        return true;
>+      }
>+    }
>+    i += num_headers_in_buf;
>+  }
>+  return false;
>+}
>+
>+// There is no particular reason to limit section name to 63 characters,
>+// but there has (as yet) been no need for anything longer either.
>+const int kMaxSectionNameLen = 64;
>+
>+bool ForEachSection(int fd,
>+                    const std::function<bool(const std::string &name,
>+                                             const ElfW(Shdr) &)> &callback) {
>+  ElfW(Ehdr) elf_header;
>+  if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
>+    return false;
>+  }
>+
>+  ElfW(Shdr) shstrtab;
>+  off_t shstrtab_offset =
>+      (elf_header.e_shoff + elf_header.e_shentsize * elf_header.e_shstrndx);
>+  if (!ReadFromOffsetExact(fd, &shstrtab, sizeof(shstrtab), shstrtab_offset)) {
>+    return false;
>+  }
>+
>+  for (int i = 0; i < elf_header.e_shnum; ++i) {
>+    ElfW(Shdr) out;
>+    off_t section_header_offset =
>+        (elf_header.e_shoff + elf_header.e_shentsize * i);
>+    if (!ReadFromOffsetExact(fd, &out, sizeof(out), section_header_offset)) {
>+      return false;
>+    }
>+    off_t name_offset = shstrtab.sh_offset + out.sh_name;
>+    char header_name[kMaxSectionNameLen + 1];
>+    ssize_t n_read =
>+        ReadFromOffset(fd, &header_name, kMaxSectionNameLen, name_offset);
>+    if (n_read == -1) {
>+      return false;
>+    } else if (n_read > kMaxSectionNameLen) {
>+      // Long read?
>+      return false;
>+    }
>+    header_name[n_read] = '\0';
>+
>+    std::string name(header_name);
>+    if (!callback(name, out)) {
>+      break;
>+    }
>+  }
>+  return true;
>+}
>+
>+// name_len should include terminating '\0'.
>+bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
>+                            ElfW(Shdr) * out) {
>+  char header_name[kMaxSectionNameLen];
>+  if (sizeof(header_name) < name_len) {
>+    ABSL_RAW_LOG(WARNING,
>+                 "Section name '%s' is too long (%zu); "
>+                 "section will not be found (even if present).",
>+                 name, name_len);
>+    // No point in even trying.
>+    return false;
>+  }
>+
>+  ElfW(Ehdr) elf_header;
>+  if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
>+    return false;
>+  }
>+
>+  ElfW(Shdr) shstrtab;
>+  off_t shstrtab_offset =
>+      (elf_header.e_shoff + elf_header.e_shentsize * elf_header.e_shstrndx);
>+  if (!ReadFromOffsetExact(fd, &shstrtab, sizeof(shstrtab), shstrtab_offset)) {
>+    return false;
>+  }
>+
>+  for (int i = 0; i < elf_header.e_shnum; ++i) {
>+    off_t section_header_offset =
>+        (elf_header.e_shoff + elf_header.e_shentsize * i);
>+    if (!ReadFromOffsetExact(fd, out, sizeof(*out), section_header_offset)) {
>+      return false;
>+    }
>+    off_t name_offset = shstrtab.sh_offset + out->sh_name;
>+    ssize_t n_read = ReadFromOffset(fd, &header_name, name_len, name_offset);
>+    if (n_read < 0) {
>+      return false;
>+    } else if (static_cast<size_t>(n_read) != name_len) {
>+      // Short read -- name could be at end of file.
>+      continue;
>+    }
>+    if (memcmp(header_name, name, name_len) == 0) {
>+      return true;
>+    }
>+  }
>+  return false;
>+}
>+
>+// Compare symbols at in the same address.
>+// Return true if we should pick symbol1.
>+static bool ShouldPickFirstSymbol(const ElfW(Sym) & symbol1,
>+                                  const ElfW(Sym) & symbol2) {
>+  // If one of the symbols is weak and the other is not, pick the one
>+  // this is not a weak symbol.
>+  char bind1 = ELF_ST_BIND(symbol1.st_info);
>+  char bind2 = ELF_ST_BIND(symbol1.st_info);
>+  if (bind1 == STB_WEAK && bind2 != STB_WEAK) return false;
>+  if (bind2 == STB_WEAK && bind1 != STB_WEAK) return true;
>+
>+  // If one of the symbols has zero size and the other is not, pick the
>+  // one that has non-zero size.
>+  if (symbol1.st_size != 0 && symbol2.st_size == 0) {
>+    return true;
>+  }
>+  if (symbol1.st_size == 0 && symbol2.st_size != 0) {
>+    return false;
>+  }
>+
>+  // If one of the symbols has no type and the other is not, pick the
>+  // one that has a type.
>+  char type1 = ELF_ST_TYPE(symbol1.st_info);
>+  char type2 = ELF_ST_TYPE(symbol1.st_info);
>+  if (type1 != STT_NOTYPE && type2 == STT_NOTYPE) {
>+    return true;
>+  }
>+  if (type1 == STT_NOTYPE && type2 != STT_NOTYPE) {
>+    return false;
>+  }
>+
>+  // Pick the first one, if we still cannot decide.
>+  return true;
>+}
>+
>+// Return true if an address is inside a section.
>+static bool InSection(const void *address, const ElfW(Shdr) * section) {
>+  const char *start = reinterpret_cast<const char *>(section->sh_addr);
>+  size_t size = static_cast<size_t>(section->sh_size);
>+  return start <= address && address < (start + size);
>+}
>+
>+// Read a symbol table and look for the symbol containing the
>+// pc. Iterate over symbols in a symbol table and look for the symbol
>+// containing "pc".  If the symbol is found, and its name fits in
>+// out_size, the name is written into out and SYMBOL_FOUND is returned.
>+// If the name does not fit, truncated name is written into out,
>+// and SYMBOL_TRUNCATED is returned. Out is NUL-terminated.
>+// If the symbol is not found, SYMBOL_NOT_FOUND is returned;
>+// To keep stack consumption low, we would like this function to not get
>+// inlined.
>+static ABSL_ATTRIBUTE_NOINLINE FindSymbolResult FindSymbol(
>+    const void *const pc, const int fd, char *out, int out_size,
>+    ptrdiff_t relocation, const ElfW(Shdr) * strtab, const ElfW(Shdr) * symtab,
>+    const ElfW(Shdr) * opd, char *tmp_buf, int tmp_buf_size) {
>+  if (symtab == nullptr) {
>+    return SYMBOL_NOT_FOUND;
>+  }
>+
>+  // Read multiple symbols at once to save read() calls.
>+  ElfW(Sym) *buf = reinterpret_cast<ElfW(Sym) *>(tmp_buf);
>+  const int buf_entries = tmp_buf_size / sizeof(buf[0]);
>+
>+  const int num_symbols = symtab->sh_size / symtab->sh_entsize;
>+
>+  // On platforms using an .opd section (PowerPC & IA64), a function symbol
>+  // has the address of a function descriptor, which contains the real
>+  // starting address.  However, we do not always want to use the real
>+  // starting address because we sometimes want to symbolize a function
>+  // pointer into the .opd section, e.g. FindSymbol(&foo,...).
>+  const bool pc_in_opd =
>+      kPlatformUsesOPDSections && opd != nullptr && InSection(pc, opd);
>+  const bool deref_function_descriptor_pointer =
>+      kPlatformUsesOPDSections && opd != nullptr && !pc_in_opd;
>+
>+  ElfW(Sym) best_match;
>+  SafeMemZero(&best_match, sizeof(best_match));
>+  bool found_match = false;
>+  for (int i = 0; i < num_symbols;) {
>+    off_t offset = symtab->sh_offset + i * symtab->sh_entsize;
>+    const int num_remaining_symbols = num_symbols - i;
>+    const int entries_in_chunk = std::min(num_remaining_symbols, buf_entries);
>+    const int bytes_in_chunk = entries_in_chunk * sizeof(buf[0]);
>+    const ssize_t len = ReadFromOffset(fd, buf, bytes_in_chunk, offset);
>+    SAFE_ASSERT(len % sizeof(buf[0]) == 0);
>+    const ssize_t num_symbols_in_buf = len / sizeof(buf[0]);
>+    SAFE_ASSERT(num_symbols_in_buf <= entries_in_chunk);
>+    for (int j = 0; j < num_symbols_in_buf; ++j) {
>+      const ElfW(Sym) &symbol = buf[j];
>+
>+      // For a DSO, a symbol address is relocated by the loading address.
>+      // We keep the original address for opd redirection below.
>+      const char *const original_start_address =
>+          reinterpret_cast<const char *>(symbol.st_value);
>+      const char *start_address = original_start_address + relocation;
>+
>+      if (deref_function_descriptor_pointer &&
>+          InSection(original_start_address, opd)) {
>+        // The opd section is mapped into memory.  Just dereference
>+        // start_address to get the first double word, which points to the
>+        // function entry.
>+        start_address = *reinterpret_cast<const char *const *>(start_address);
>+      }
>+
>+      // If pc is inside the .opd section, it points to a function descriptor.
>+      const size_t size = pc_in_opd ? kFunctionDescriptorSize : symbol.st_size;
>+      const void *const end_address =
>+          reinterpret_cast<const char *>(start_address) + size;
>+      if (symbol.st_value != 0 &&  // Skip null value symbols.
>+          symbol.st_shndx != 0 &&  // Skip undefined symbols.
>+#ifdef STT_TLS
>+          ELF_ST_TYPE(symbol.st_info) != STT_TLS &&  // Skip thread-local data.
>+#endif                                               // STT_TLS
>+          ((start_address <= pc && pc < end_address) ||
>+           (start_address == pc && pc == end_address))) {
>+        if (!found_match || ShouldPickFirstSymbol(symbol, best_match)) {
>+          found_match = true;
>+          best_match = symbol;
>+        }
>+      }
>+    }
>+    i += num_symbols_in_buf;
>+  }
>+
>+  if (found_match) {
>+    const size_t off = strtab->sh_offset + best_match.st_name;
>+    const ssize_t n_read = ReadFromOffset(fd, out, out_size, off);
>+    if (n_read <= 0) {
>+      // This should never happen.
>+      ABSL_RAW_LOG(WARNING,
>+                   "Unable to read from fd %d at offset %zu: n_read = %zd", fd,
>+                   off, n_read);
>+      return SYMBOL_NOT_FOUND;
>+    }
>+    ABSL_RAW_CHECK(n_read <= out_size, "ReadFromOffset read too much data.");
>+
>+    // strtab->sh_offset points into .strtab-like section that contains
>+    // NUL-terminated strings: '\0foo\0barbaz\0...".
>+    //
>+    // sh_offset+st_name points to the start of symbol name, but we don't know
>+    // how long the symbol is, so we try to read as much as we have space for,
>+    // and usually over-read (i.e. there is a NUL somewhere before n_read).
>+    if (memchr(out, '\0', n_read) == nullptr) {
>+      // Either out_size was too small (n_read == out_size and no NUL), or
>+      // we tried to read past the EOF (n_read < out_size) and .strtab is
>+      // corrupt (missing terminating NUL; should never happen for valid ELF).
>+      out[n_read - 1] = '\0';
>+      return SYMBOL_TRUNCATED;
>+    }
>+    return SYMBOL_FOUND;
>+  }
>+
>+  return SYMBOL_NOT_FOUND;
>+}
>+
>+// Get the symbol name of "pc" from the file pointed by "fd".  Process
>+// both regular and dynamic symbol tables if necessary.
>+// See FindSymbol() comment for description of return value.
>+FindSymbolResult Symbolizer::GetSymbolFromObjectFile(
>+    const ObjFile &obj, const void *const pc, const ptrdiff_t relocation,
>+    char *out, int out_size, char *tmp_buf, int tmp_buf_size) {
>+  ElfW(Shdr) symtab;
>+  ElfW(Shdr) strtab;
>+  ElfW(Shdr) opd;
>+  ElfW(Shdr) *opd_ptr = nullptr;
>+
>+  // On platforms using an .opd sections for function descriptor, read
>+  // the section header.  The .opd section is in data segment and should be
>+  // loaded but we check that it is mapped just to be extra careful.
>+  if (kPlatformUsesOPDSections) {
>+    if (GetSectionHeaderByName(obj.fd, kOpdSectionName,
>+                               sizeof(kOpdSectionName) - 1, &opd) &&
>+        FindObjFile(reinterpret_cast<const char *>(opd.sh_addr) + relocation,
>+                    opd.sh_size) != nullptr) {
>+      opd_ptr = &opd;
>+    } else {
>+      return SYMBOL_NOT_FOUND;
>+    }
>+  }
>+
>+  // Consult a regular symbol table first.
>+  if (!GetSectionHeaderByType(obj.fd, obj.elf_header.e_shnum,
>+                              obj.elf_header.e_shoff, SHT_SYMTAB, &symtab,
>+                              tmp_buf, tmp_buf_size)) {
>+    return SYMBOL_NOT_FOUND;
>+  }
>+  if (!ReadFromOffsetExact(
>+          obj.fd, &strtab, sizeof(strtab),
>+          obj.elf_header.e_shoff + symtab.sh_link * sizeof(symtab))) {
>+    return SYMBOL_NOT_FOUND;
>+  }
>+  const FindSymbolResult rc =
>+      FindSymbol(pc, obj.fd, out, out_size, relocation, &strtab, &symtab,
>+                 opd_ptr, tmp_buf, tmp_buf_size);
>+  if (rc != SYMBOL_NOT_FOUND) {
>+    return rc;  // Found the symbol in a regular symbol table.
>+  }
>+
>+  // If the symbol is not found, then consult a dynamic symbol table.
>+  if (!GetSectionHeaderByType(obj.fd, obj.elf_header.e_shnum,
>+                              obj.elf_header.e_shoff, SHT_DYNSYM, &symtab,
>+                              tmp_buf, tmp_buf_size)) {
>+    return SYMBOL_NOT_FOUND;
>+  }
>+  if (!ReadFromOffsetExact(
>+          obj.fd, &strtab, sizeof(strtab),
>+          obj.elf_header.e_shoff + symtab.sh_link * sizeof(symtab))) {
>+    return SYMBOL_NOT_FOUND;
>+  }
>+  return FindSymbol(pc, obj.fd, out, out_size, relocation, &strtab, &symtab,
>+                    opd_ptr, tmp_buf, tmp_buf_size);
>+}
>+
>+namespace {
>+// Thin wrapper around a file descriptor so that the file descriptor
>+// gets closed for sure.
>+class FileDescriptor {
>+ public:
>+  explicit FileDescriptor(int fd) : fd_(fd) {}
>+  FileDescriptor(const FileDescriptor &) = delete;
>+  FileDescriptor &operator=(const FileDescriptor &) = delete;
>+
>+  ~FileDescriptor() {
>+    if (fd_ >= 0) {
>+      NO_INTR(close(fd_));
>+    }
>+  }
>+
>+  int get() const { return fd_; }
>+
>+ private:
>+  const int fd_;
>+};
>+
>+// Helper class for reading lines from file.
>+//
>+// Note: we don't use ProcMapsIterator since the object is big (it has
>+// a 5k array member) and uses async-unsafe functions such as sscanf()
>+// and snprintf().
>+class LineReader {
>+ public:
>+  explicit LineReader(int fd, char *buf, int buf_len)
>+      : fd_(fd),
>+        buf_len_(buf_len),
>+        buf_(buf),
>+        bol_(buf),
>+        eol_(buf),
>+        eod_(buf) {}
>+
>+  LineReader(const LineReader &) = delete;
>+  LineReader &operator=(const LineReader &) = delete;
>+
>+  // Read '\n'-terminated line from file.  On success, modify "bol"
>+  // and "eol", then return true.  Otherwise, return false.
>+  //
>+  // Note: if the last line doesn't end with '\n', the line will be
>+  // dropped.  It's an intentional behavior to make the code simple.
>+  bool ReadLine(const char **bol, const char **eol) {
>+    if (BufferIsEmpty()) {  // First time.
>+      const ssize_t num_bytes = ReadPersistent(fd_, buf_, buf_len_);
>+      if (num_bytes <= 0) {  // EOF or error.
>+        return false;
>+      }
>+      eod_ = buf_ + num_bytes;
>+      bol_ = buf_;
>+    } else {
>+      bol_ = eol_ + 1;            // Advance to the next line in the buffer.
>+      SAFE_ASSERT(bol_ <= eod_);  // "bol_" can point to "eod_".
>+      if (!HasCompleteLine()) {
>+        const int incomplete_line_length = eod_ - bol_;
>+        // Move the trailing incomplete line to the beginning.
>+        memmove(buf_, bol_, incomplete_line_length);
>+        // Read text from file and append it.
>+        char *const append_pos = buf_ + incomplete_line_length;
>+        const int capacity_left = buf_len_ - incomplete_line_length;
>+        const ssize_t num_bytes =
>+            ReadPersistent(fd_, append_pos, capacity_left);
>+        if (num_bytes <= 0) {  // EOF or error.
>+          return false;
>+        }
>+        eod_ = append_pos + num_bytes;
>+        bol_ = buf_;
>+      }
>+    }
>+    eol_ = FindLineFeed();
>+    if (eol_ == nullptr) {  // '\n' not found.  Malformed line.
>+      return false;
>+    }
>+    *eol_ = '\0';  // Replace '\n' with '\0'.
>+
>+    *bol = bol_;
>+    *eol = eol_;
>+    return true;
>+  }
>+
>+ private:
>+  char *FindLineFeed() const {
>+    return reinterpret_cast<char *>(memchr(bol_, '\n', eod_ - bol_));
>+  }
>+
>+  bool BufferIsEmpty() const { return buf_ == eod_; }
>+
>+  bool HasCompleteLine() const {
>+    return !BufferIsEmpty() && FindLineFeed() != nullptr;
>+  }
>+
>+  const int fd_;
>+  const int buf_len_;
>+  char *const buf_;
>+  char *bol_;
>+  char *eol_;
>+  const char *eod_;  // End of data in "buf_".
>+};
>+}  // namespace
>+
>+// Place the hex number read from "start" into "*hex".  The pointer to
>+// the first non-hex character or "end" is returned.
>+static const char *GetHex(const char *start, const char *end,
>+                          uint64_t *const value) {
>+  uint64_t hex = 0;
>+  const char *p;
>+  for (p = start; p < end; ++p) {
>+    int ch = *p;
>+    if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F') ||
>+        (ch >= 'a' && ch <= 'f')) {
>+      hex = (hex << 4) | (ch < 'A' ? ch - '0' : (ch & 0xF) + 9);
>+    } else {  // Encountered the first non-hex character.
>+      break;
>+    }
>+  }
>+  SAFE_ASSERT(p <= end);
>+  *value = hex;
>+  return p;
>+}
>+
>+static const char *GetHex(const char *start, const char *end,
>+                          const void **const addr) {
>+  uint64_t hex = 0;
>+  const char *p = GetHex(start, end, &hex);
>+  *addr = reinterpret_cast<void *>(hex);
>+  return p;
>+}
>+
>+// Read /proc/self/maps and run "callback" for each mmapped file found.  If
>+// "callback" returns false, stop scanning and return true. Else continue
>+// scanning /proc/self/maps. Return true if no parse error is found.
>+static ABSL_ATTRIBUTE_NOINLINE bool ReadAddrMap(
>+    bool (*callback)(const char *filename, const void *const start_addr,
>+                     const void *const end_addr, uint64_t offset, void *arg),
>+    void *arg, void *tmp_buf, int tmp_buf_size) {
>+  // Use /proc/self/task/<pid>/maps instead of /proc/self/maps. The latter
>+  // requires kernel to stop all threads, and is significantly slower when there
>+  // are 1000s of threads.
>+  char maps_path[80];
>+  snprintf(maps_path, sizeof(maps_path), "/proc/self/task/%d/maps", getpid());
>+
>+  int maps_fd;
>+  NO_INTR(maps_fd = open(maps_path, O_RDONLY));
>+  FileDescriptor wrapped_maps_fd(maps_fd);
>+  if (wrapped_maps_fd.get() < 0) {
>+    ABSL_RAW_LOG(WARNING, "%s: errno=%d", maps_path, errno);
>+    return false;
>+  }
>+
>+  // Iterate over maps and look for the map containing the pc.  Then
>+  // look into the symbol tables inside.
>+  LineReader reader(wrapped_maps_fd.get(), static_cast<char *>(tmp_buf),
>+                    tmp_buf_size);
>+  while (true) {
>+    const char *cursor;
>+    const char *eol;
>+    if (!reader.ReadLine(&cursor, &eol)) {  // EOF or malformed line.
>+      break;
>+    }
>+
>+    const char *line = cursor;
>+    const void *start_address;
>+    // Start parsing line in /proc/self/maps.  Here is an example:
>+    //
>+    // 08048000-0804c000 r-xp 00000000 08:01 2142121    /bin/cat
>+    //
>+    // We want start address (08048000), end address (0804c000), flags
>+    // (r-xp) and file name (/bin/cat).
>+
>+    // Read start address.
>+    cursor = GetHex(cursor, eol, &start_address);
>+    if (cursor == eol || *cursor != '-') {
>+      ABSL_RAW_LOG(WARNING, "Corrupt /proc/self/maps line: %s", line);
>+      return false;
>+    }
>+    ++cursor;  // Skip '-'.
>+
>+    // Read end address.
>+    const void *end_address;
>+    cursor = GetHex(cursor, eol, &end_address);
>+    if (cursor == eol || *cursor != ' ') {
>+      ABSL_RAW_LOG(WARNING, "Corrupt /proc/self/maps line: %s", line);
>+      return false;
>+    }
>+    ++cursor;  // Skip ' '.
>+
>+    // Read flags.  Skip flags until we encounter a space or eol.
>+    const char *const flags_start = cursor;
>+    while (cursor < eol && *cursor != ' ') {
>+      ++cursor;
>+    }
>+    // We expect at least four letters for flags (ex. "r-xp").
>+    if (cursor == eol || cursor < flags_start + 4) {
>+      ABSL_RAW_LOG(WARNING, "Corrupt /proc/self/maps: %s", line);
>+      return false;
>+    }
>+
>+    // Check flags.  Normally we are only interested in "r-x" maps.  On
>+    // the PowerPC, function pointers point to descriptors in the .opd
>+    // section.  The descriptors themselves are not executable code.  So
>+    // we need to relax the check below to "r**".
>+    if (memcmp(flags_start, "r-x", 3) != 0 &&  // Not a "r-x" map.
>+        !(kPlatformUsesOPDSections && flags_start[0] == 'r')) {
>+      continue;  // We skip this map.
>+    }
>+    ++cursor;  // Skip ' '.
>+
>+    // Read file offset.
>+    uint64_t offset;
>+    cursor = GetHex(cursor, eol, &offset);
>+    ++cursor;  // Skip ' '.
>+
>+    // Skip to file name.  "cursor" now points to dev.  We need to skip at least
>+    // two spaces for dev and inode.
>+    int num_spaces = 0;
>+    while (cursor < eol) {
>+      if (*cursor == ' ') {
>+        ++num_spaces;
>+      } else if (num_spaces >= 2) {
>+        // The first non-space character after  skipping two spaces
>+        // is the beginning of the file name.
>+        break;
>+      }
>+      ++cursor;
>+    }
>+
>+    // Check whether this entry corresponds to our hint table for the true
>+    // filename.
>+    bool hinted =
>+        GetFileMappingHint(&start_address, &end_address, &offset, &cursor);
>+    if (!hinted && (cursor == eol || cursor[0] == '[')) {
>+      // not an object file, typically [vdso] or [vsyscall]
>+      continue;
>+    }
>+    if (!callback(cursor, start_address, end_address, offset, arg)) break;
>+  }
>+  return true;
>+}
>+
>+// Find the objfile mapped in address region containing [addr, addr + len).
>+ObjFile *Symbolizer::FindObjFile(const void *const addr, size_t len) {
>+  for (int i = 0; i < 2; ++i) {
>+    if (!ok_) return nullptr;
>+
>+    // Read /proc/self/maps if necessary
>+    if (!addr_map_read_) {
>+      addr_map_read_ = true;
>+      if (!ReadAddrMap(RegisterObjFile, this, tmp_buf_, TMP_BUF_SIZE)) {
>+        ok_ = false;
>+        return nullptr;
>+      }
>+    }
>+
>+    int lo = 0;
>+    int hi = addr_map_.Size();
>+    while (lo < hi) {
>+      int mid = (lo + hi) / 2;
>+      if (addr < addr_map_.At(mid)->end_addr) {
>+        hi = mid;
>+      } else {
>+        lo = mid + 1;
>+      }
>+    }
>+    if (lo != addr_map_.Size()) {
>+      ObjFile *obj = addr_map_.At(lo);
>+      SAFE_ASSERT(obj->end_addr > addr);
>+      if (addr >= obj->start_addr &&
>+          reinterpret_cast<const char *>(addr) + len <= obj->end_addr)
>+        return obj;
>+    }
>+
>+    // The address mapping may have changed since it was last read.  Retry.
>+    ClearAddrMap();
>+  }
>+  return nullptr;
>+}
>+
>+void Symbolizer::ClearAddrMap() {
>+  for (int i = 0; i != addr_map_.Size(); i++) {
>+    ObjFile *o = addr_map_.At(i);
>+    base_internal::LowLevelAlloc::Free(o->filename);
>+    if (o->fd >= 0) {
>+      NO_INTR(close(o->fd));
>+    }
>+  }
>+  addr_map_.Clear();
>+  addr_map_read_ = false;
>+}
>+
>+// Callback for ReadAddrMap to register objfiles in an in-memory table.
>+bool Symbolizer::RegisterObjFile(const char *filename,
>+                                 const void *const start_addr,
>+                                 const void *const end_addr, uint64_t offset,
>+                                 void *arg) {
>+  Symbolizer *impl = static_cast<Symbolizer *>(arg);
>+
>+  // Files are supposed to be added in the increasing address order.  Make
>+  // sure that's the case.
>+  int addr_map_size = impl->addr_map_.Size();
>+  if (addr_map_size != 0) {
>+    ObjFile *old = impl->addr_map_.At(addr_map_size - 1);
>+    if (old->end_addr > end_addr) {
>+      ABSL_RAW_LOG(ERROR,
>+                   "Unsorted addr map entry: 0x%" PRIxPTR ": %s <-> 0x%" PRIxPTR
>+                   ": %s",
>+                   reinterpret_cast<uintptr_t>(end_addr), filename,
>+                   reinterpret_cast<uintptr_t>(old->end_addr), old->filename);
>+      return true;
>+    } else if (old->end_addr == end_addr) {
>+      // The same entry appears twice. This sometimes happens for [vdso].
>+      if (old->start_addr != start_addr ||
>+          strcmp(old->filename, filename) != 0) {
>+        ABSL_RAW_LOG(ERROR,
>+                     "Duplicate addr 0x%" PRIxPTR ": %s <-> 0x%" PRIxPTR ": %s",
>+                     reinterpret_cast<uintptr_t>(end_addr), filename,
>+                     reinterpret_cast<uintptr_t>(old->end_addr), old->filename);
>+      }
>+      return true;
>+    }
>+  }
>+  ObjFile *obj = impl->addr_map_.Add();
>+  obj->filename = impl->CopyString(filename);
>+  obj->start_addr = start_addr;
>+  obj->end_addr = end_addr;
>+  obj->offset = offset;
>+  obj->elf_type = -1;  // filled on demand
>+  obj->fd = -1;        // opened on demand
>+  return true;
>+}
>+
>+// This function wraps the Demangle function to provide an interface
>+// where the input symbol is demangled in-place.
>+// To keep stack consumption low, we would like this function to not
>+// get inlined.
>+static ABSL_ATTRIBUTE_NOINLINE void DemangleInplace(char *out, int out_size,
>+                                                    char *tmp_buf,
>+                                                    int tmp_buf_size) {
>+  if (Demangle(out, tmp_buf, tmp_buf_size)) {
>+    // Demangling succeeded. Copy to out if the space allows.
>+    int len = strlen(tmp_buf);
>+    if (len + 1 <= out_size) {  // +1 for '\0'.
>+      SAFE_ASSERT(len < tmp_buf_size);
>+      memmove(out, tmp_buf, len + 1);
>+    }
>+  }
>+}
>+
>+SymbolCacheLine *Symbolizer::GetCacheLine(const void *const pc) {
>+  uintptr_t pc0 = reinterpret_cast<uintptr_t>(pc);
>+  pc0 >>= 3;  // drop the low 3 bits
>+
>+  // Shuffle bits.
>+  pc0 ^= (pc0 >> 6) ^ (pc0 >> 12) ^ (pc0 >> 18);
>+  return &symbol_cache_[pc0 % SYMBOL_CACHE_LINES];
>+}
>+
>+void Symbolizer::AgeSymbols(SymbolCacheLine *line) {
>+  for (uint32_t &age : line->age) {
>+    ++age;
>+  }
>+}
>+
>+const char *Symbolizer::FindSymbolInCache(const void *const pc) {
>+  if (pc == nullptr) return nullptr;
>+
>+  SymbolCacheLine *line = GetCacheLine(pc);
>+  for (size_t i = 0; i < ABSL_ARRAYSIZE(line->pc); ++i) {
>+    if (line->pc[i] == pc) {
>+      AgeSymbols(line);
>+      line->age[i] = 0;
>+      return line->name[i];
>+    }
>+  }
>+  return nullptr;
>+}
>+
>+const char *Symbolizer::InsertSymbolInCache(const void *const pc,
>+                                            const char *name) {
>+  SAFE_ASSERT(pc != nullptr);
>+
>+  SymbolCacheLine *line = GetCacheLine(pc);
>+  uint32_t max_age = 0;
>+  int oldest_index = -1;
>+  for (size_t i = 0; i < ABSL_ARRAYSIZE(line->pc); ++i) {
>+    if (line->pc[i] == nullptr) {
>+      AgeSymbols(line);
>+      line->pc[i] = pc;
>+      line->name[i] = CopyString(name);
>+      line->age[i] = 0;
>+      return line->name[i];
>+    }
>+    if (line->age[i] >= max_age) {
>+      max_age = line->age[i];
>+      oldest_index = i;
>+    }
>+  }
>+
>+  AgeSymbols(line);
>+  ABSL_RAW_CHECK(oldest_index >= 0, "Corrupt cache");
>+  base_internal::LowLevelAlloc::Free(line->name[oldest_index]);
>+  line->pc[oldest_index] = pc;
>+  line->name[oldest_index] = CopyString(name);
>+  line->age[oldest_index] = 0;
>+  return line->name[oldest_index];
>+}
>+
>+static void MaybeOpenFdFromSelfExe(ObjFile *obj) {
>+  if (memcmp(obj->start_addr, ELFMAG, SELFMAG) != 0) {
>+    return;
>+  }
>+  int fd = open("/proc/self/exe", O_RDONLY);
>+  if (fd == -1) {
>+    return;
>+  }
>+  // Verify that contents of /proc/self/exe matches in-memory image of
>+  // the binary. This can fail if the "deleted" binary is in fact not
>+  // the main executable, or for binaries that have the first PT_LOAD
>+  // segment smaller than 4K. We do it in four steps so that the
>+  // buffer is smaller and we don't consume too much stack space.
>+  const char *mem = reinterpret_cast<const char *>(obj->start_addr);
>+  for (int i = 0; i < 4; ++i) {
>+    char buf[1024];
>+    ssize_t n = read(fd, buf, sizeof(buf));
>+    if (n != sizeof(buf) || memcmp(buf, mem, sizeof(buf)) != 0) {
>+      close(fd);
>+      return;
>+    }
>+    mem += sizeof(buf);
>+  }
>+  obj->fd = fd;
>+}
>+
>+static bool MaybeInitializeObjFile(ObjFile *obj) {
>+  if (obj->fd < 0) {
>+    obj->fd = open(obj->filename, O_RDONLY);
>+
>+    if (obj->fd < 0) {
>+      // Getting /proc/self/exe here means that we were hinted.
>+      if (strcmp(obj->filename, "/proc/self/exe") == 0) {
>+        // /proc/self/exe may be inaccessible (due to setuid, etc.), so try
>+        // accessing the binary via argv0.
>+        if (argv0_value != nullptr) {
>+          obj->fd = open(argv0_value, O_RDONLY);
>+        }
>+      } else {
>+        MaybeOpenFdFromSelfExe(obj);
>+      }
>+    }
>+
>+    if (obj->fd < 0) {
>+      ABSL_RAW_LOG(WARNING, "%s: open failed: errno=%d", obj->filename, errno);
>+      return false;
>+    }
>+    obj->elf_type = FileGetElfType(obj->fd);
>+    if (obj->elf_type < 0) {
>+      ABSL_RAW_LOG(WARNING, "%s: wrong elf type: %d", obj->filename,
>+                   obj->elf_type);
>+      return false;
>+    }
>+
>+    if (!ReadFromOffsetExact(obj->fd, &obj->elf_header, sizeof(obj->elf_header),
>+                             0)) {
>+      ABSL_RAW_LOG(WARNING, "%s: failed to read elf header", obj->filename);
>+      return false;
>+    }
>+  }
>+  return true;
>+}
>+
>+// The implementation of our symbolization routine.  If it
>+// successfully finds the symbol containing "pc" and obtains the
>+// symbol name, returns pointer to that symbol. Otherwise, returns nullptr.
>+// If any symbol decorators have been installed via InstallSymbolDecorator(),
>+// they are called here as well.
>+// To keep stack consumption low, we would like this function to not
>+// get inlined.
>+const char *Symbolizer::GetSymbol(const void *const pc) {
>+  const char *entry = FindSymbolInCache(pc);
>+  if (entry != nullptr) {
>+    return entry;
>+  }
>+  symbol_buf_[0] = '\0';
>+
>+  ObjFile *const obj = FindObjFile(pc, 1);
>+  ptrdiff_t relocation = 0;
>+  int fd = -1;
>+  if (obj != nullptr) {
>+    if (MaybeInitializeObjFile(obj)) {
>+      if (obj->elf_type == ET_DYN &&
>+          reinterpret_cast<uint64_t>(obj->start_addr) >= obj->offset) {
>+        // This object was relocated.
>+        //
>+        // For obj->offset > 0, adjust the relocation since a mapping at offset
>+        // X in the file will have a start address of [true relocation]+X.
>+        relocation = reinterpret_cast<ptrdiff_t>(obj->start_addr) - obj->offset;
>+      }
>+
>+      fd = obj->fd;
>+    }
>+    if (GetSymbolFromObjectFile(*obj, pc, relocation, symbol_buf_,
>+                                sizeof(symbol_buf_), tmp_buf_,
>+                                sizeof(tmp_buf_)) == SYMBOL_FOUND) {
>+      // Only try to demangle the symbol name if it fit into symbol_buf_.
>+      DemangleInplace(symbol_buf_, sizeof(symbol_buf_), tmp_buf_,
>+                      sizeof(tmp_buf_));
>+    }
>+  } else {
>+#if ABSL_HAVE_VDSO_SUPPORT
>+    VDSOSupport vdso;
>+    if (vdso.IsPresent()) {
>+      VDSOSupport::SymbolInfo symbol_info;
>+      if (vdso.LookupSymbolByAddress(pc, &symbol_info)) {
>+        // All VDSO symbols are known to be short.
>+        size_t len = strlen(symbol_info.name);
>+        ABSL_RAW_CHECK(len + 1 < sizeof(symbol_buf_),
>+                       "VDSO symbol unexpectedly long");
>+        memcpy(symbol_buf_, symbol_info.name, len + 1);
>+      }
>+    }
>+#endif
>+  }
>+
>+  if (g_decorators_mu.TryLock()) {
>+    if (g_num_decorators > 0) {
>+      SymbolDecoratorArgs decorator_args = {
>+          pc,       relocation,       fd,     symbol_buf_, sizeof(symbol_buf_),
>+          tmp_buf_, sizeof(tmp_buf_), nullptr};
>+      for (int i = 0; i < g_num_decorators; ++i) {
>+        decorator_args.arg = g_decorators[i].arg;
>+        g_decorators[i].fn(&decorator_args);
>+      }
>+    }
>+    g_decorators_mu.Unlock();
>+  }
>+  if (symbol_buf_[0] == '\0') {
>+    return nullptr;
>+  }
>+  symbol_buf_[sizeof(symbol_buf_) - 1] = '\0';  // Paranoia.
>+  return InsertSymbolInCache(pc, symbol_buf_);
>+}
>+
>+bool RemoveAllSymbolDecorators(void) {
>+  if (!g_decorators_mu.TryLock()) {
>+    // Someone else is using decorators. Get out.
>+    return false;
>+  }
>+  g_num_decorators = 0;
>+  g_decorators_mu.Unlock();
>+  return true;
>+}
>+
>+bool RemoveSymbolDecorator(int ticket) {
>+  if (!g_decorators_mu.TryLock()) {
>+    // Someone else is using decorators. Get out.
>+    return false;
>+  }
>+  for (int i = 0; i < g_num_decorators; ++i) {
>+    if (g_decorators[i].ticket == ticket) {
>+      while (i < g_num_decorators - 1) {
>+        g_decorators[i] = g_decorators[i + 1];
>+        ++i;
>+      }
>+      g_num_decorators = i;
>+      break;
>+    }
>+  }
>+  g_decorators_mu.Unlock();
>+  return true;  // Decorator is known to be removed.
>+}
>+
>+int InstallSymbolDecorator(SymbolDecorator decorator, void *arg) {
>+  static int ticket = 0;
>+
>+  if (!g_decorators_mu.TryLock()) {
>+    // Someone else is using decorators. Get out.
>+    return false;
>+  }
>+  int ret = ticket;
>+  if (g_num_decorators >= kMaxDecorators) {
>+    ret = -1;
>+  } else {
>+    g_decorators[g_num_decorators] = {decorator, arg, ticket++};
>+    ++g_num_decorators;
>+  }
>+  g_decorators_mu.Unlock();
>+  return ret;
>+}
>+
>+bool RegisterFileMappingHint(const void *start, const void *end, uint64_t offset,
>+                             const char *filename) {
>+  SAFE_ASSERT(start <= end);
>+  SAFE_ASSERT(filename != nullptr);
>+
>+  InitSigSafeArena();
>+
>+  if (!g_file_mapping_mu.TryLock()) {
>+    return false;
>+  }
>+
>+  bool ret = true;
>+  if (g_num_file_mapping_hints >= kMaxFileMappingHints) {
>+    ret = false;
>+  } else {
>+    // TODO(ckennelly): Move this into a std::string copy routine.
>+    int len = strlen(filename);
>+    char *dst = static_cast<char *>(
>+        base_internal::LowLevelAlloc::AllocWithArena(len + 1, SigSafeArena()));
>+    ABSL_RAW_CHECK(dst != nullptr, "out of memory");
>+    memcpy(dst, filename, len + 1);
>+
>+    auto &hint = g_file_mapping_hints[g_num_file_mapping_hints++];
>+    hint.start = start;
>+    hint.end = end;
>+    hint.offset = offset;
>+    hint.filename = dst;
>+  }
>+
>+  g_file_mapping_mu.Unlock();
>+  return ret;
>+}
>+
>+bool GetFileMappingHint(const void **start, const void **end, uint64_t *offset,
>+                        const char **filename) {
>+  if (!g_file_mapping_mu.TryLock()) {
>+    return false;
>+  }
>+  bool found = false;
>+  for (int i = 0; i < g_num_file_mapping_hints; i++) {
>+    if (g_file_mapping_hints[i].start <= *start &&
>+        *end <= g_file_mapping_hints[i].end) {
>+      // We assume that the start_address for the mapping is the base
>+      // address of the ELF section, but when [start_address,end_address) is
>+      // not strictly equal to [hint.start, hint.end), that assumption is
>+      // invalid.
>+      //
>+      // This uses the hint's start address (even though hint.start is not
>+      // necessarily equal to start_address) to ensure the correct
>+      // relocation is computed later.
>+      *start = g_file_mapping_hints[i].start;
>+      *end = g_file_mapping_hints[i].end;
>+      *offset = g_file_mapping_hints[i].offset;
>+      *filename = g_file_mapping_hints[i].filename;
>+      found = true;
>+      break;
>+    }
>+  }
>+  g_file_mapping_mu.Unlock();
>+  return found;
>+}
>+
>+}  // namespace debugging_internal
>+
>+bool Symbolize(const void *pc, char *out, int out_size) {
>+  // Symbolization is very slow under tsan.
>+  ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN();
>+  SAFE_ASSERT(out_size >= 0);
>+  debugging_internal::Symbolizer *s = debugging_internal::AllocateSymbolizer();
>+  const char *name = s->GetSymbol(pc);
>+  bool ok = false;
>+  if (name != nullptr && out_size > 0) {
>+    strncpy(out, name, out_size);
>+    ok = true;
>+    if (out[out_size - 1] != '\0') {
>+      // strncpy() does not '\0' terminate when it truncates.  Do so, with
>+      // trailing ellipsis.
>+      static constexpr char kEllipsis[] = "...";
>+      int ellipsis_size =
>+          std::min(implicit_cast<int>(strlen(kEllipsis)), out_size - 1);
>+      memcpy(out + out_size - ellipsis_size - 1, kEllipsis, ellipsis_size);
>+      out[out_size - 1] = '\0';
>+    }
>+  }
>+  debugging_internal::FreeSymbolizer(s);
>+  ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END();
>+  return ok;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..5f2af47ee45d654b422d0e864fbf060cb5c51075
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_test.cc
>@@ -0,0 +1,517 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/debugging/symbolize.h"
>+
>+#ifndef _WIN32
>+#include <fcntl.h>
>+#include <sys/mman.h>
>+#endif
>+
>+#include <cstring>
>+#include <iostream>
>+#include <memory>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/casts.h"
>+#include "absl/base/internal/per_thread_tls.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/optimization.h"
>+#include "absl/debugging/internal/stack_consumption.h"
>+#include "absl/memory/memory.h"
>+
>+using testing::Contains;
>+
>+// Functions to symbolize. Use C linkage to avoid mangled names.
>+extern "C" {
>+void nonstatic_func() { ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); }
>+static void static_func() { ABSL_BLOCK_TAIL_CALL_OPTIMIZATION(); }
>+}  // extern "C"
>+
>+struct Foo {
>+  static void func(int x);
>+};
>+
>+// A C++ method that should have a mangled name.
>+void ABSL_ATTRIBUTE_NOINLINE Foo::func(int) {
>+  ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
>+}
>+
>+// Create functions that will remain in different text sections in the
>+// final binary when linker option "-z,keep-text-section-prefix" is used.
>+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.unlikely) unlikely_func() {
>+  return 0;
>+}
>+
>+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.hot) hot_func() {
>+  return 0;
>+}
>+
>+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.startup) startup_func() {
>+  return 0;
>+}
>+
>+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.exit) exit_func() {
>+  return 0;
>+}
>+
>+int /*ABSL_ATTRIBUTE_SECTION_VARIABLE(.text)*/ regular_func() {
>+  return 0;
>+}
>+
>+// Thread-local data may confuse the symbolizer, ensure that it does not.
>+// Variable sizes and order are important.
>+#if ABSL_PER_THREAD_TLS
>+static ABSL_PER_THREAD_TLS_KEYWORD char symbolize_test_thread_small[1];
>+static ABSL_PER_THREAD_TLS_KEYWORD char
>+    symbolize_test_thread_big[2 * 1024 * 1024];
>+#endif
>+
>+// Used below to hopefully inhibit some compiler/linker optimizations
>+// that may remove kHpageTextPadding, kPadding0, and kPadding1 from
>+// the binary.
>+static volatile bool volatile_bool = false;
>+
>+// Force the binary to be large enough that a THP .text remap will succeed.
>+static constexpr size_t kHpageSize = 1 << 21;
>+const char kHpageTextPadding[kHpageSize * 4] ABSL_ATTRIBUTE_SECTION_VARIABLE(
>+    .text) = "";
>+
>+static char try_symbolize_buffer[4096];
>+
>+// A wrapper function for absl::Symbolize() to make the unit test simple.  The
>+// limit must be < sizeof(try_symbolize_buffer).  Returns null if
>+// absl::Symbolize() returns false, otherwise returns try_symbolize_buffer with
>+// the result of absl::Symbolize().
>+static const char *TrySymbolizeWithLimit(void *pc, int limit) {
>+  ABSL_RAW_CHECK(limit <= sizeof(try_symbolize_buffer),
>+                 "try_symbolize_buffer is too small");
>+
>+  // Use the heap to facilitate heap and buffer sanitizer tools.
>+  auto heap_buffer = absl::make_unique<char[]>(sizeof(try_symbolize_buffer));
>+  bool found = absl::Symbolize(pc, heap_buffer.get(), limit);
>+  if (found) {
>+    ABSL_RAW_CHECK(strnlen(heap_buffer.get(), limit) < limit,
>+                   "absl::Symbolize() did not properly terminate the string");
>+    strncpy(try_symbolize_buffer, heap_buffer.get(),
>+            sizeof(try_symbolize_buffer));
>+  }
>+
>+  return found ? try_symbolize_buffer : nullptr;
>+}
>+
>+// A wrapper for TrySymbolizeWithLimit(), with a large limit.
>+static const char *TrySymbolize(void *pc) {
>+  return TrySymbolizeWithLimit(pc, sizeof(try_symbolize_buffer));
>+}
>+
>+#ifdef ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE
>+
>+TEST(Symbolize, Cached) {
>+  // Compilers should give us pointers to them.
>+  EXPECT_STREQ("nonstatic_func", TrySymbolize((void *)(&nonstatic_func)));
>+
>+  // The name of an internal linkage symbol is not specified; allow either a
>+  // mangled or an unmangled name here.
>+  const char *static_func_symbol = TrySymbolize((void *)(&static_func));
>+  EXPECT_TRUE(strcmp("static_func", static_func_symbol) == 0 ||
>+              strcmp("static_func()", static_func_symbol) == 0);
>+
>+  EXPECT_TRUE(nullptr == TrySymbolize(nullptr));
>+}
>+
>+TEST(Symbolize, Truncation) {
>+  constexpr char kNonStaticFunc[] = "nonstatic_func";
>+  EXPECT_STREQ("nonstatic_func",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) + 1));
>+  EXPECT_STREQ("nonstatic_...",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) + 0));
>+  EXPECT_STREQ("nonstatic...",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) - 1));
>+  EXPECT_STREQ("n...", TrySymbolizeWithLimit((void *)(&nonstatic_func), 5));
>+  EXPECT_STREQ("...", TrySymbolizeWithLimit((void *)(&nonstatic_func), 4));
>+  EXPECT_STREQ("..", TrySymbolizeWithLimit((void *)(&nonstatic_func), 3));
>+  EXPECT_STREQ(".", TrySymbolizeWithLimit((void *)(&nonstatic_func), 2));
>+  EXPECT_STREQ("", TrySymbolizeWithLimit((void *)(&nonstatic_func), 1));
>+  EXPECT_EQ(nullptr, TrySymbolizeWithLimit((void *)(&nonstatic_func), 0));
>+}
>+
>+TEST(Symbolize, SymbolizeWithDemangling) {
>+  Foo::func(100);
>+  EXPECT_STREQ("Foo::func()", TrySymbolize((void *)(&Foo::func)));
>+}
>+
>+TEST(Symbolize, SymbolizeSplitTextSections) {
>+  EXPECT_STREQ("unlikely_func()", TrySymbolize((void *)(&unlikely_func)));
>+  EXPECT_STREQ("hot_func()", TrySymbolize((void *)(&hot_func)));
>+  EXPECT_STREQ("startup_func()", TrySymbolize((void *)(&startup_func)));
>+  EXPECT_STREQ("exit_func()", TrySymbolize((void *)(&exit_func)));
>+  EXPECT_STREQ("regular_func()", TrySymbolize((void *)(&regular_func)));
>+}
>+
>+// Tests that verify that Symbolize stack footprint is within some limit.
>+#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+
>+static void *g_pc_to_symbolize;
>+static char g_symbolize_buffer[4096];
>+static char *g_symbolize_result;
>+
>+static void SymbolizeSignalHandler(int signo) {
>+  if (absl::Symbolize(g_pc_to_symbolize, g_symbolize_buffer,
>+                      sizeof(g_symbolize_buffer))) {
>+    g_symbolize_result = g_symbolize_buffer;
>+  } else {
>+    g_symbolize_result = nullptr;
>+  }
>+}
>+
>+// Call Symbolize and figure out the stack footprint of this call.
>+static const char *SymbolizeStackConsumption(void *pc, int *stack_consumed) {
>+  g_pc_to_symbolize = pc;
>+  *stack_consumed = absl::debugging_internal::GetSignalHandlerStackConsumption(
>+      SymbolizeSignalHandler);
>+  return g_symbolize_result;
>+}
>+
>+static int GetStackConsumptionUpperLimit() {
>+  // Symbolize stack consumption should be within 2kB.
>+  int stack_consumption_upper_limit = 2048;
>+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
>+    defined(THREAD_SANITIZER)
>+  // Account for sanitizer instrumentation requiring additional stack space.
>+  stack_consumption_upper_limit *= 5;
>+#endif
>+  return stack_consumption_upper_limit;
>+}
>+
>+TEST(Symbolize, SymbolizeStackConsumption) {
>+  int stack_consumed = 0;
>+
>+  const char *symbol =
>+      SymbolizeStackConsumption((void *)(&nonstatic_func), &stack_consumed);
>+  EXPECT_STREQ("nonstatic_func", symbol);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, GetStackConsumptionUpperLimit());
>+
>+  // The name of an internal linkage symbol is not specified; allow either a
>+  // mangled or an unmangled name here.
>+  symbol = SymbolizeStackConsumption((void *)(&static_func), &stack_consumed);
>+  EXPECT_TRUE(strcmp("static_func", symbol) == 0 ||
>+              strcmp("static_func()", symbol) == 0);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, GetStackConsumptionUpperLimit());
>+}
>+
>+TEST(Symbolize, SymbolizeWithDemanglingStackConsumption) {
>+  Foo::func(100);
>+  int stack_consumed = 0;
>+
>+  const char *symbol =
>+      SymbolizeStackConsumption((void *)(&Foo::func), &stack_consumed);
>+
>+  EXPECT_STREQ("Foo::func()", symbol);
>+  EXPECT_GT(stack_consumed, 0);
>+  EXPECT_LT(stack_consumed, GetStackConsumptionUpperLimit());
>+}
>+
>+#endif  // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
>+
>+// Use a 64K page size for PPC.
>+const size_t kPageSize = 64 << 10;
>+// We place a read-only symbols into the .text section and verify that we can
>+// symbolize them and other symbols after remapping them.
>+const char kPadding0[kPageSize * 4] ABSL_ATTRIBUTE_SECTION_VARIABLE(.text) =
>+    "";
>+const char kPadding1[kPageSize * 4] ABSL_ATTRIBUTE_SECTION_VARIABLE(.text) =
>+    "";
>+
>+static int FilterElfHeader(struct dl_phdr_info *info, size_t size, void *data) {
>+  for (int i = 0; i < info->dlpi_phnum; i++) {
>+    if (info->dlpi_phdr[i].p_type == PT_LOAD &&
>+        info->dlpi_phdr[i].p_flags == (PF_R | PF_X)) {
>+      const void *const vaddr =
>+          absl::bit_cast<void *>(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
>+      const auto segsize = info->dlpi_phdr[i].p_memsz;
>+
>+      const char *self_exe;
>+      if (info->dlpi_name != nullptr && info->dlpi_name[0] != '\0') {
>+        self_exe = info->dlpi_name;
>+      } else {
>+        self_exe = "/proc/self/exe";
>+      }
>+
>+      absl::debugging_internal::RegisterFileMappingHint(
>+          vaddr, reinterpret_cast<const char *>(vaddr) + segsize,
>+          info->dlpi_phdr[i].p_offset, self_exe);
>+
>+      return 1;
>+    }
>+  }
>+
>+  return 1;
>+}
>+
>+TEST(Symbolize, SymbolizeWithMultipleMaps) {
>+  // Force kPadding0 and kPadding1 to be linked in.
>+  if (volatile_bool) {
>+    ABSL_RAW_LOG(INFO, "%s", kPadding0);
>+    ABSL_RAW_LOG(INFO, "%s", kPadding1);
>+  }
>+
>+  // Verify we can symbolize everything.
>+  char buf[512];
>+  memset(buf, 0, sizeof(buf));
>+  absl::Symbolize(kPadding0, buf, sizeof(buf));
>+  EXPECT_STREQ("kPadding0", buf);
>+
>+  memset(buf, 0, sizeof(buf));
>+  absl::Symbolize(kPadding1, buf, sizeof(buf));
>+  EXPECT_STREQ("kPadding1", buf);
>+
>+  // Specify a hint for the executable segment.
>+  dl_iterate_phdr(FilterElfHeader, nullptr);
>+
>+  // Reload at least one page out of kPadding0, kPadding1
>+  const char *ptrs[] = {kPadding0, kPadding1};
>+
>+  for (const char *ptr : ptrs) {
>+    const int kMapFlags = MAP_ANONYMOUS | MAP_PRIVATE;
>+    void *addr = mmap(nullptr, kPageSize, PROT_READ, kMapFlags, 0, 0);
>+    ASSERT_NE(addr, MAP_FAILED);
>+
>+    // kPadding[0-1] is full of zeroes, so we can remap anywhere within it, but
>+    // we ensure there is at least a full page of padding.
>+    void *remapped = reinterpret_cast<void *>(
>+        reinterpret_cast<uintptr_t>(ptr + kPageSize) & ~(kPageSize - 1ULL));
>+
>+    const int kMremapFlags = (MREMAP_MAYMOVE | MREMAP_FIXED);
>+    void *ret = mremap(addr, kPageSize, kPageSize, kMremapFlags, remapped);
>+    ASSERT_NE(ret, MAP_FAILED);
>+  }
>+
>+  // Invalidate the symbolization cache so we are forced to rely on the hint.
>+  absl::Symbolize(nullptr, buf, sizeof(buf));
>+
>+  // Verify we can still symbolize.
>+  const char *expected[] = {"kPadding0", "kPadding1"};
>+  const size_t offsets[] = {0, kPageSize, 2 * kPageSize, 3 * kPageSize};
>+
>+  for (int i = 0; i < 2; i++) {
>+    for (size_t offset : offsets) {
>+      memset(buf, 0, sizeof(buf));
>+      absl::Symbolize(ptrs[i] + offset, buf, sizeof(buf));
>+      EXPECT_STREQ(expected[i], buf);
>+    }
>+  }
>+}
>+
>+// Appends std::string(*args->arg) to args->symbol_buf.
>+static void DummySymbolDecorator(
>+    const absl::debugging_internal::SymbolDecoratorArgs *args) {
>+  std::string *message = static_cast<std::string *>(args->arg);
>+  strncat(args->symbol_buf, message->c_str(),
>+          args->symbol_buf_size - strlen(args->symbol_buf) - 1);
>+}
>+
>+TEST(Symbolize, InstallAndRemoveSymbolDecorators) {
>+  int ticket_a;
>+  std::string a_message("a");
>+  EXPECT_GE(ticket_a = absl::debugging_internal::InstallSymbolDecorator(
>+                DummySymbolDecorator, &a_message),
>+            0);
>+
>+  int ticket_b;
>+  std::string b_message("b");
>+  EXPECT_GE(ticket_b = absl::debugging_internal::InstallSymbolDecorator(
>+                DummySymbolDecorator, &b_message),
>+            0);
>+
>+  int ticket_c;
>+  std::string c_message("c");
>+  EXPECT_GE(ticket_c = absl::debugging_internal::InstallSymbolDecorator(
>+                DummySymbolDecorator, &c_message),
>+            0);
>+
>+  char *address = reinterpret_cast<char *>(1);
>+  EXPECT_STREQ("abc", TrySymbolize(address++));
>+
>+  EXPECT_TRUE(absl::debugging_internal::RemoveSymbolDecorator(ticket_b));
>+
>+  EXPECT_STREQ("ac", TrySymbolize(address++));
>+
>+  // Cleanup: remove all remaining decorators so other stack traces don't
>+  // get mystery "ac" decoration.
>+  EXPECT_TRUE(absl::debugging_internal::RemoveSymbolDecorator(ticket_a));
>+  EXPECT_TRUE(absl::debugging_internal::RemoveSymbolDecorator(ticket_c));
>+}
>+
>+// Some versions of Clang with optimizations enabled seem to be able
>+// to optimize away the .data section if no variables live in the
>+// section. This variable should get placed in the .data section, and
>+// the test below checks for the existence of a .data section.
>+static int in_data_section = 1;
>+
>+TEST(Symbolize, ForEachSection) {
>+  int fd = TEMP_FAILURE_RETRY(open("/proc/self/exe", O_RDONLY));
>+  ASSERT_NE(fd, -1);
>+
>+  std::vector<std::string> sections;
>+  ASSERT_TRUE(absl::debugging_internal::ForEachSection(
>+      fd, [&sections](const std::string &name, const ElfW(Shdr) &) {
>+        sections.push_back(name);
>+        return true;
>+      }));
>+
>+  // Check for the presence of common section names.
>+  EXPECT_THAT(sections, Contains(".text"));
>+  EXPECT_THAT(sections, Contains(".rodata"));
>+  EXPECT_THAT(sections, Contains(".bss"));
>+  ++in_data_section;
>+  EXPECT_THAT(sections, Contains(".data"));
>+
>+  close(fd);
>+}
>+
>+// x86 specific tests.  Uses some inline assembler.
>+extern "C" {
>+inline void *ABSL_ATTRIBUTE_ALWAYS_INLINE inline_func() {
>+  void *pc = nullptr;
>+#if defined(__i386__) || defined(__x86_64__)
>+  __asm__ __volatile__("call 1f; 1: pop %0" : "=r"(pc));
>+#endif
>+  return pc;
>+}
>+
>+void *ABSL_ATTRIBUTE_NOINLINE non_inline_func() {
>+  void *pc = nullptr;
>+#if defined(__i386__) || defined(__x86_64__)
>+  __asm__ __volatile__("call 1f; 1: pop %0" : "=r"(pc));
>+#endif
>+  return pc;
>+}
>+
>+void ABSL_ATTRIBUTE_NOINLINE TestWithPCInsideNonInlineFunction() {
>+#if defined(ABSL_HAVE_ATTRIBUTE_NOINLINE) && \
>+    (defined(__i386__) || defined(__x86_64__))
>+  void *pc = non_inline_func();
>+  const char *symbol = TrySymbolize(pc);
>+  ABSL_RAW_CHECK(symbol != nullptr, "TestWithPCInsideNonInlineFunction failed");
>+  ABSL_RAW_CHECK(strcmp(symbol, "non_inline_func") == 0,
>+                 "TestWithPCInsideNonInlineFunction failed");
>+  std::cout << "TestWithPCInsideNonInlineFunction passed" << std::endl;
>+#endif
>+}
>+
>+void ABSL_ATTRIBUTE_NOINLINE TestWithPCInsideInlineFunction() {
>+#if defined(ABSL_HAVE_ATTRIBUTE_ALWAYS_INLINE) && \
>+    (defined(__i386__) || defined(__x86_64__))
>+  void *pc = inline_func();  // Must be inlined.
>+  const char *symbol = TrySymbolize(pc);
>+  ABSL_RAW_CHECK(symbol != nullptr, "TestWithPCInsideInlineFunction failed");
>+  ABSL_RAW_CHECK(strcmp(symbol, __FUNCTION__) == 0,
>+                 "TestWithPCInsideInlineFunction failed");
>+  std::cout << "TestWithPCInsideInlineFunction passed" << std::endl;
>+#endif
>+}
>+}
>+
>+// Test with a return address.
>+void ABSL_ATTRIBUTE_NOINLINE TestWithReturnAddress() {
>+#if defined(ABSL_HAVE_ATTRIBUTE_NOINLINE)
>+  void *return_address = __builtin_return_address(0);
>+  const char *symbol = TrySymbolize(return_address);
>+  ABSL_RAW_CHECK(symbol != nullptr, "TestWithReturnAddress failed");
>+  ABSL_RAW_CHECK(strcmp(symbol, "main") == 0, "TestWithReturnAddress failed");
>+  std::cout << "TestWithReturnAddress passed" << std::endl;
>+#endif
>+}
>+
>+#elif defined(_WIN32) && defined(_DEBUG)
>+
>+TEST(Symbolize, Basics) {
>+  EXPECT_STREQ("nonstatic_func", TrySymbolize((void *)(&nonstatic_func)));
>+
>+  // The name of an internal linkage symbol is not specified; allow either a
>+  // mangled or an unmangled name here.
>+  const char* static_func_symbol = TrySymbolize((void *)(&static_func));
>+  ASSERT_TRUE(static_func_symbol != nullptr);
>+  EXPECT_TRUE(strstr(static_func_symbol, "static_func") != nullptr);
>+
>+  EXPECT_TRUE(nullptr == TrySymbolize(nullptr));
>+}
>+
>+TEST(Symbolize, Truncation) {
>+  constexpr char kNonStaticFunc[] = "nonstatic_func";
>+  EXPECT_STREQ("nonstatic_func",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) + 1));
>+  EXPECT_STREQ("nonstatic_...",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) + 0));
>+  EXPECT_STREQ("nonstatic...",
>+               TrySymbolizeWithLimit((void *)(&nonstatic_func),
>+                                     strlen(kNonStaticFunc) - 1));
>+  EXPECT_STREQ("n...", TrySymbolizeWithLimit((void *)(&nonstatic_func), 5));
>+  EXPECT_STREQ("...", TrySymbolizeWithLimit((void *)(&nonstatic_func), 4));
>+  EXPECT_STREQ("..", TrySymbolizeWithLimit((void *)(&nonstatic_func), 3));
>+  EXPECT_STREQ(".", TrySymbolizeWithLimit((void *)(&nonstatic_func), 2));
>+  EXPECT_STREQ("", TrySymbolizeWithLimit((void *)(&nonstatic_func), 1));
>+  EXPECT_EQ(nullptr, TrySymbolizeWithLimit((void *)(&nonstatic_func), 0));
>+}
>+
>+TEST(Symbolize, SymbolizeWithDemangling) {
>+  const char* result = TrySymbolize((void *)(&Foo::func));
>+  ASSERT_TRUE(result != nullptr);
>+  EXPECT_TRUE(strstr(result, "Foo::func") != nullptr) << result;
>+}
>+
>+#else  // Symbolizer unimplemented
>+
>+TEST(Symbolize, Unimplemented) {
>+  char buf[64];
>+  EXPECT_FALSE(absl::Symbolize((void *)(&nonstatic_func), buf, sizeof(buf)));
>+  EXPECT_FALSE(absl::Symbolize((void *)(&static_func), buf, sizeof(buf)));
>+  EXPECT_FALSE(absl::Symbolize((void *)(&Foo::func), buf, sizeof(buf)));
>+}
>+
>+#endif
>+
>+int main(int argc, char **argv) {
>+  // Make sure kHpageTextPadding is linked into the binary.
>+  if (volatile_bool) {
>+    ABSL_RAW_LOG(INFO, "%s", kHpageTextPadding);
>+  }
>+
>+#if ABSL_PER_THREAD_TLS
>+  // Touch the per-thread variables.
>+  symbolize_test_thread_small[0] = 0;
>+  symbolize_test_thread_big[0] = 0;
>+#endif
>+
>+  absl::InitializeSymbolizer(argv[0]);
>+  testing::InitGoogleTest(&argc, argv);
>+
>+#ifdef ABSL_INTERNAL_HAVE_ELF_SYMBOLIZE
>+  TestWithPCInsideInlineFunction();
>+  TestWithPCInsideNonInlineFunction();
>+  TestWithReturnAddress();
>+#endif
>+
>+  return RUN_ALL_TESTS();
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_unimplemented.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_unimplemented.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2a3f4acb0e1a2d61d1eb18d4ba5e789593eb62ef
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_unimplemented.inc
>@@ -0,0 +1,35 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstdint>
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+namespace debugging_internal {
>+
>+int InstallSymbolDecorator(SymbolDecorator, void*) { return -1; }
>+bool RemoveSymbolDecorator(int) { return false; }
>+bool RemoveAllSymbolDecorators(void) { return false; }
>+bool RegisterFileMappingHint(const void *, const void *, uint64_t, const char *) {
>+  return false;
>+}
>+
>+}  // namespace debugging_internal
>+
>+void InitializeSymbolizer(const char*) {}
>+bool Symbolize(const void *, char *, int) { return false; }
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_win32.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_win32.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e3fff74d493ce35f01aed0bd0f5dadebbb638796
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/debugging/symbolize_win32.inc
>@@ -0,0 +1,74 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// See "Retrieving Symbol Information by Address":
>+// https://msdn.microsoft.com/en-us/library/windows/desktop/ms680578(v=vs.85).aspx
>+
>+#include <windows.h>
>+#include <DbgHelp.h>
>+#pragma comment(lib, "DbgHelp")
>+
>+#include <algorithm>
>+#include <cstring>
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+static HANDLE process = NULL;
>+
>+void InitializeSymbolizer(const char *argv0) {
>+  if (process != nullptr) {
>+    return;
>+  }
>+  process = GetCurrentProcess();
>+
>+  // Symbols are not loaded until a reference is made requiring the
>+  // symbols be loaded. This is the fastest, most efficient way to use
>+  // the symbol handler.
>+  SymSetOptions(SYMOPT_DEFERRED_LOADS | SYMOPT_UNDNAME);
>+  if (!SymInitialize(process, nullptr, true)) {
>+    // GetLastError() returns a Win32 DWORD, but we assign to
>+    // unsigned long long to simplify the ABSL_RAW_LOG case below.  The uniform
>+    // initialization guarantees this is not a narrowing conversion.
>+    const unsigned long long error{GetLastError()};  // NOLINT(runtime/int)
>+    ABSL_RAW_LOG(FATAL, "SymInitialize() failed: %llu", error);
>+  }
>+}
>+
>+bool Symbolize(const void *pc, char *out, int out_size) {
>+  if (out_size <= 0) {
>+    return false;
>+  }
>+  std::aligned_storage<sizeof(SYMBOL_INFO) + MAX_SYM_NAME,
>+                       alignof(SYMBOL_INFO)>::type buf;
>+  SYMBOL_INFO *symbol = reinterpret_cast<SYMBOL_INFO *>(&buf);
>+  symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
>+  symbol->MaxNameLen = MAX_SYM_NAME;
>+  if (!SymFromAddr(process, reinterpret_cast<DWORD64>(pc), nullptr, symbol)) {
>+    return false;
>+  }
>+  strncpy(out, symbol->Name, out_size);
>+  if (out[out_size - 1] != '\0') {
>+    // strncpy() does not '\0' terminate when it truncates.
>+    static constexpr char kEllipsis[] = "...";
>+    int ellipsis_size =
>+        std::min<int>(sizeof(kEllipsis) - 1, out_size - 1);
>+    memcpy(out + out_size - ellipsis_size - 1, kEllipsis, ellipsis_size);
>+    out[out_size - 1] = '\0';
>+  }
>+  return true;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..46f47b12bb2adb2f672fb050fb40d77ecf85bc21
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.bazel
>@@ -0,0 +1,61 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+    "ABSL_EXCEPTIONS_FLAG",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "memory",
>+    hdrs = ["memory.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+    ],
>+)
>+
>+cc_test(
>+    name = "memory_test",
>+    srcs = ["memory_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":memory",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "memory_exception_safety_test",
>+    srcs = [
>+        "memory_exception_safety_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":memory",
>+        "//absl/base:exception_safety_testing",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..30224c6a1124023c43eaa41b5496bdd1c337ae9a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/BUILD.gn
>@@ -0,0 +1,31 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("memory") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "memory.h",
>+  ]
>+  deps = [
>+    "../base:core_headers",
>+    "../meta:type_traits",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..5958f5c52bfb6dacb01f181ab94f64b5ca6cff88
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/CMakeLists.txt
>@@ -0,0 +1,71 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND MEMORY_PUBLIC_HEADERS
>+  "memory.h"
>+)
>+
>+
>+absl_header_library(
>+  TARGET
>+    absl_memory
>+  EXPORT_NAME
>+    memory
>+)
>+
>+#
>+## TESTS
>+#
>+
>+# test memory_test
>+list(APPEND MEMORY_TEST_SRC
>+  "memory_test.cc"
>+  ${MEMORY_PUBLIC_HEADERS}
>+)
>+set(MEMORY_TEST_PUBLIC_LIBRARIES absl::base absl::memory)
>+
>+
>+
>+absl_test(
>+  TARGET
>+    memory_test
>+  SOURCES
>+    ${MEMORY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${MEMORY_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test memory_exception_safety_test
>+set(MEMORY_EXCEPTION_SAFETY_TEST_SRC "memory_exception_safety_test.cc")
>+set(MEMORY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES
>+  absl::memory
>+  absl_base_internal_exception_safety_testing
>+)
>+
>+absl_test(
>+  TARGET
>+    memory_exception_safety_test
>+  SOURCES
>+    ${MEMORY_EXCEPTION_SAFETY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${MEMORY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..4d9cc0075df61878256aa679dedb6d3ab0ed9124
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory.h
>@@ -0,0 +1,697 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: memory.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains utility functions for managing the creation and
>+// conversion of smart pointers. This file is an extension to the C++
>+// standard <memory> library header file.
>+
>+#ifndef ABSL_MEMORY_MEMORY_H_
>+#define ABSL_MEMORY_MEMORY_H_
>+
>+#include <cstddef>
>+#include <limits>
>+#include <memory>
>+#include <new>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/base/macros.h"
>+#include "absl/meta/type_traits.h"
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// Function Template: WrapUnique()
>+// -----------------------------------------------------------------------------
>+//
>+//  Adopts ownership from a raw pointer and transfers it to the returned
>+//  `std::unique_ptr`, whose type is deduced. DO NOT specify the template type T
>+//  when calling WrapUnique.
>+//
>+// Example:
>+//   X* NewX(int, int);
>+//   auto x = WrapUnique(NewX(1, 2));  // 'x' is std::unique_ptr<X>.
>+//
>+// `absl::WrapUnique` is useful for capturing the output of a raw pointer
>+// factory. However, prefer 'absl::make_unique<T>(args...) over
>+// 'absl::WrapUnique(new T(args...))'.
>+//
>+//   auto x = WrapUnique(new X(1, 2));  // works, but nonideal.
>+//   auto x = make_unique<X>(1, 2);     // safer, standard, avoids raw 'new'.
>+//
>+// Note that `absl::WrapUnique(p)` is valid only if `delete p` is a valid
>+// expression. In particular, `absl::WrapUnique()` cannot wrap pointers to
>+// arrays, functions or void, and it must not be used to capture pointers
>+// obtained from array-new expressions (even though that would compile!).
>+template <typename T>
>+std::unique_ptr<T> WrapUnique(T* ptr) {
>+  static_assert(!std::is_array<T>::value, "array types are unsupported");
>+  static_assert(std::is_object<T>::value, "non-object types are unsupported");
>+  return std::unique_ptr<T>(ptr);
>+}
>+
>+namespace memory_internal {
>+
>+// Traits to select proper overload and return type for `absl::make_unique<>`.
>+template <typename T>
>+struct MakeUniqueResult {
>+  using scalar = std::unique_ptr<T>;
>+};
>+template <typename T>
>+struct MakeUniqueResult<T[]> {
>+  using array = std::unique_ptr<T[]>;
>+};
>+template <typename T, size_t N>
>+struct MakeUniqueResult<T[N]> {
>+  using invalid = void;
>+};
>+
>+}  // namespace memory_internal
>+
>+// gcc 4.8 has __cplusplus at 201301 but doesn't define make_unique.  Other
>+// supported compilers either just define __cplusplus as 201103 but have
>+// make_unique (msvc), or have make_unique whenever __cplusplus > 201103 (clang)
>+#if (__cplusplus > 201103L || defined(_MSC_VER)) && \
>+    !(defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ == 8)
>+using std::make_unique;
>+#else
>+// -----------------------------------------------------------------------------
>+// Function Template: make_unique<T>()
>+// -----------------------------------------------------------------------------
>+//
>+// Creates a `std::unique_ptr<>`, while avoiding issues creating temporaries
>+// during the construction process. `absl::make_unique<>` also avoids redundant
>+// type declarations, by avoiding the need to explicitly use the `new` operator.
>+//
>+// This implementation of `absl::make_unique<>` is designed for C++11 code and
>+// will be replaced in C++14 by the equivalent `std::make_unique<>` abstraction.
>+// `absl::make_unique<>` is designed to be 100% compatible with
>+// `std::make_unique<>` so that the eventual migration will involve a simple
>+// rename operation.
>+//
>+// For more background on why `std::unique_ptr<T>(new T(a,b))` is problematic,
>+// see Herb Sutter's explanation on
>+// (Exception-Safe Function Calls)[http://herbsutter.com/gotw/_102/].
>+// (In general, reviewers should treat `new T(a,b)` with scrutiny.)
>+//
>+// Example usage:
>+//
>+//    auto p = make_unique<X>(args...);  // 'p'  is a std::unique_ptr<X>
>+//    auto pa = make_unique<X[]>(5);     // 'pa' is a std::unique_ptr<X[]>
>+//
>+// Three overloads of `absl::make_unique` are required:
>+//
>+//   - For non-array T:
>+//
>+//       Allocates a T with `new T(std::forward<Args> args...)`,
>+//       forwarding all `args` to T's constructor.
>+//       Returns a `std::unique_ptr<T>` owning that object.
>+//
>+//   - For an array of unknown bounds T[]:
>+//
>+//       `absl::make_unique<>` will allocate an array T of type U[] with
>+//       `new U[n]()` and return a `std::unique_ptr<U[]>` owning that array.
>+//
>+//       Note that 'U[n]()' is different from 'U[n]', and elements will be
>+//       value-initialized. Note as well that `std::unique_ptr` will perform its
>+//       own destruction of the array elements upon leaving scope, even though
>+//       the array [] does not have a default destructor.
>+//
>+//       NOTE: an array of unknown bounds T[] may still be (and often will be)
>+//       initialized to have a size, and will still use this overload. E.g:
>+//
>+//         auto my_array = absl::make_unique<int[]>(10);
>+//
>+//   - For an array of known bounds T[N]:
>+//
>+//       `absl::make_unique<>` is deleted (like with `std::make_unique<>`) as
>+//       this overload is not useful.
>+//
>+//       NOTE: an array of known bounds T[N] is not considered a useful
>+//       construction, and may cause undefined behavior in templates. E.g:
>+//
>+//         auto my_array = absl::make_unique<int[10]>();
>+//
>+//       In those cases, of course, you can still use the overload above and
>+//       simply initialize it to its desired size:
>+//
>+//         auto my_array = absl::make_unique<int[]>(10);
>+
>+// `absl::make_unique` overload for non-array types.
>+template <typename T, typename... Args>
>+typename memory_internal::MakeUniqueResult<T>::scalar make_unique(
>+    Args&&... args) {
>+  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
>+}
>+
>+// `absl::make_unique` overload for an array T[] of unknown bounds.
>+// The array allocation needs to use the `new T[size]` form and cannot take
>+// element constructor arguments. The `std::unique_ptr` will manage destructing
>+// these array elements.
>+template <typename T>
>+typename memory_internal::MakeUniqueResult<T>::array make_unique(size_t n) {
>+  return std::unique_ptr<T>(new typename absl::remove_extent_t<T>[n]());
>+}
>+
>+// `absl::make_unique` overload for an array T[N] of known bounds.
>+// This construction will be rejected.
>+template <typename T, typename... Args>
>+typename memory_internal::MakeUniqueResult<T>::invalid make_unique(
>+    Args&&... /* args */) = delete;
>+#endif
>+
>+// -----------------------------------------------------------------------------
>+// Function Template: RawPtr()
>+// -----------------------------------------------------------------------------
>+//
>+// Extracts the raw pointer from a pointer-like value `ptr`. `absl::RawPtr` is
>+// useful within templates that need to handle a complement of raw pointers,
>+// `std::nullptr_t`, and smart pointers.
>+template <typename T>
>+auto RawPtr(T&& ptr) -> decltype(std::addressof(*ptr)) {
>+  // ptr is a forwarding reference to support Ts with non-const operators.
>+  return (ptr != nullptr) ? std::addressof(*ptr) : nullptr;
>+}
>+inline std::nullptr_t RawPtr(std::nullptr_t) { return nullptr; }
>+
>+// -----------------------------------------------------------------------------
>+// Function Template: ShareUniquePtr()
>+// -----------------------------------------------------------------------------
>+//
>+// Adopts a `std::unique_ptr` rvalue and returns a `std::shared_ptr` of deduced
>+// type. Ownership (if any) of the held value is transferred to the returned
>+// shared pointer.
>+//
>+// Example:
>+//
>+//     auto up = absl::make_unique<int>(10);
>+//     auto sp = absl::ShareUniquePtr(std::move(up));  // shared_ptr<int>
>+//     CHECK_EQ(*sp, 10);
>+//     CHECK(up == nullptr);
>+//
>+// Note that this conversion is correct even when T is an array type, and more
>+// generally it works for *any* deleter of the `unique_ptr` (single-object
>+// deleter, array deleter, or any custom deleter), since the deleter is adopted
>+// by the shared pointer as well. The deleter is copied (unless it is a
>+// reference).
>+//
>+// Implements the resolution of [LWG 2415](http://wg21.link/lwg2415), by which a
>+// null shared pointer does not attempt to call the deleter.
>+template <typename T, typename D>
>+std::shared_ptr<T> ShareUniquePtr(std::unique_ptr<T, D>&& ptr) {
>+  return ptr ? std::shared_ptr<T>(std::move(ptr)) : std::shared_ptr<T>();
>+}
>+
>+// -----------------------------------------------------------------------------
>+// Function Template: WeakenPtr()
>+// -----------------------------------------------------------------------------
>+//
>+// Creates a weak pointer associated with a given shared pointer. The returned
>+// value is a `std::weak_ptr` of deduced type.
>+//
>+// Example:
>+//
>+//    auto sp = std::make_shared<int>(10);
>+//    auto wp = absl::WeakenPtr(sp);
>+//    CHECK_EQ(sp.get(), wp.lock().get());
>+//    sp.reset();
>+//    CHECK(wp.lock() == nullptr);
>+//
>+template <typename T>
>+std::weak_ptr<T> WeakenPtr(const std::shared_ptr<T>& ptr) {
>+  return std::weak_ptr<T>(ptr);
>+}
>+
>+namespace memory_internal {
>+
>+// ExtractOr<E, O, D>::type evaluates to E<O> if possible. Otherwise, D.
>+template <template <typename> class Extract, typename Obj, typename Default,
>+          typename>
>+struct ExtractOr {
>+  using type = Default;
>+};
>+
>+template <template <typename> class Extract, typename Obj, typename Default>
>+struct ExtractOr<Extract, Obj, Default, void_t<Extract<Obj>>> {
>+  using type = Extract<Obj>;
>+};
>+
>+template <template <typename> class Extract, typename Obj, typename Default>
>+using ExtractOrT = typename ExtractOr<Extract, Obj, Default, void>::type;
>+
>+// Extractors for the features of allocators.
>+template <typename T>
>+using GetPointer = typename T::pointer;
>+
>+template <typename T>
>+using GetConstPointer = typename T::const_pointer;
>+
>+template <typename T>
>+using GetVoidPointer = typename T::void_pointer;
>+
>+template <typename T>
>+using GetConstVoidPointer = typename T::const_void_pointer;
>+
>+template <typename T>
>+using GetDifferenceType = typename T::difference_type;
>+
>+template <typename T>
>+using GetSizeType = typename T::size_type;
>+
>+template <typename T>
>+using GetPropagateOnContainerCopyAssignment =
>+    typename T::propagate_on_container_copy_assignment;
>+
>+template <typename T>
>+using GetPropagateOnContainerMoveAssignment =
>+    typename T::propagate_on_container_move_assignment;
>+
>+template <typename T>
>+using GetPropagateOnContainerSwap = typename T::propagate_on_container_swap;
>+
>+template <typename T>
>+using GetIsAlwaysEqual = typename T::is_always_equal;
>+
>+template <typename T>
>+struct GetFirstArg;
>+
>+template <template <typename...> class Class, typename T, typename... Args>
>+struct GetFirstArg<Class<T, Args...>> {
>+  using type = T;
>+};
>+
>+template <typename Ptr, typename = void>
>+struct ElementType {
>+  using type = typename GetFirstArg<Ptr>::type;
>+};
>+
>+template <typename T>
>+struct ElementType<T, void_t<typename T::element_type>> {
>+  using type = typename T::element_type;
>+};
>+
>+template <typename T, typename U>
>+struct RebindFirstArg;
>+
>+template <template <typename...> class Class, typename T, typename... Args,
>+          typename U>
>+struct RebindFirstArg<Class<T, Args...>, U> {
>+  using type = Class<U, Args...>;
>+};
>+
>+template <typename T, typename U, typename = void>
>+struct RebindPtr {
>+  using type = typename RebindFirstArg<T, U>::type;
>+};
>+
>+template <typename T, typename U>
>+struct RebindPtr<T, U, void_t<typename T::template rebind<U>>> {
>+  using type = typename T::template rebind<U>;
>+};
>+
>+template <typename T, typename U>
>+constexpr bool HasRebindAlloc(...) {
>+  return false;
>+}
>+
>+template <typename T, typename U>
>+constexpr bool HasRebindAlloc(typename T::template rebind<U>::other*) {
>+  return true;
>+}
>+
>+template <typename T, typename U, bool = HasRebindAlloc<T, U>(nullptr)>
>+struct RebindAlloc {
>+  using type = typename RebindFirstArg<T, U>::type;
>+};
>+
>+template <typename T, typename U>
>+struct RebindAlloc<T, U, true> {
>+  using type = typename T::template rebind<U>::other;
>+};
>+
>+}  // namespace memory_internal
>+
>+// -----------------------------------------------------------------------------
>+// Class Template: pointer_traits
>+// -----------------------------------------------------------------------------
>+//
>+// An implementation of C++11's std::pointer_traits.
>+//
>+// Provided for portability on toolchains that have a working C++11 compiler,
>+// but the standard library is lacking in C++11 support. For example, some
>+// version of the Android NDK.
>+//
>+
>+template <typename Ptr>
>+struct pointer_traits {
>+  using pointer = Ptr;
>+
>+  // element_type:
>+  // Ptr::element_type if present. Otherwise T if Ptr is a template
>+  // instantiation Template<T, Args...>
>+  using element_type = typename memory_internal::ElementType<Ptr>::type;
>+
>+  // difference_type:
>+  // Ptr::difference_type if present, otherwise std::ptrdiff_t
>+  using difference_type =
>+      memory_internal::ExtractOrT<memory_internal::GetDifferenceType, Ptr,
>+                                  std::ptrdiff_t>;
>+
>+  // rebind:
>+  // Ptr::rebind<U> if exists, otherwise Template<U, Args...> if Ptr is a
>+  // template instantiation Template<T, Args...>
>+  template <typename U>
>+  using rebind = typename memory_internal::RebindPtr<Ptr, U>::type;
>+
>+  // pointer_to:
>+  // Calls Ptr::pointer_to(r)
>+  static pointer pointer_to(element_type& r) {  // NOLINT(runtime/references)
>+    return Ptr::pointer_to(r);
>+  }
>+};
>+
>+// Specialization for T*.
>+template <typename T>
>+struct pointer_traits<T*> {
>+  using pointer = T*;
>+  using element_type = T;
>+  using difference_type = std::ptrdiff_t;
>+
>+  template <typename U>
>+  using rebind = U*;
>+
>+  // pointer_to:
>+  // Calls std::addressof(r)
>+  static pointer pointer_to(
>+      element_type& r) noexcept {  // NOLINT(runtime/references)
>+    return std::addressof(r);
>+  }
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Class Template: allocator_traits
>+// -----------------------------------------------------------------------------
>+//
>+// A C++11 compatible implementation of C++17's std::allocator_traits.
>+//
>+template <typename Alloc>
>+struct allocator_traits {
>+  using allocator_type = Alloc;
>+
>+  // value_type:
>+  // Alloc::value_type
>+  using value_type = typename Alloc::value_type;
>+
>+  // pointer:
>+  // Alloc::pointer if present, otherwise value_type*
>+  using pointer = memory_internal::ExtractOrT<memory_internal::GetPointer,
>+                                              Alloc, value_type*>;
>+
>+  // const_pointer:
>+  // Alloc::const_pointer if present, otherwise
>+  // absl::pointer_traits<pointer>::rebind<const value_type>
>+  using const_pointer =
>+      memory_internal::ExtractOrT<memory_internal::GetConstPointer, Alloc,
>+                                  typename absl::pointer_traits<pointer>::
>+                                      template rebind<const value_type>>;
>+
>+  // void_pointer:
>+  // Alloc::void_pointer if present, otherwise
>+  // absl::pointer_traits<pointer>::rebind<void>
>+  using void_pointer = memory_internal::ExtractOrT<
>+      memory_internal::GetVoidPointer, Alloc,
>+      typename absl::pointer_traits<pointer>::template rebind<void>>;
>+
>+  // const_void_pointer:
>+  // Alloc::const_void_pointer if present, otherwise
>+  // absl::pointer_traits<pointer>::rebind<const void>
>+  using const_void_pointer = memory_internal::ExtractOrT<
>+      memory_internal::GetConstVoidPointer, Alloc,
>+      typename absl::pointer_traits<pointer>::template rebind<const void>>;
>+
>+  // difference_type:
>+  // Alloc::difference_type if present, otherwise
>+  // absl::pointer_traits<pointer>::difference_type
>+  using difference_type = memory_internal::ExtractOrT<
>+      memory_internal::GetDifferenceType, Alloc,
>+      typename absl::pointer_traits<pointer>::difference_type>;
>+
>+  // size_type:
>+  // Alloc::size_type if present, otherwise
>+  // std::make_unsigned<difference_type>::type
>+  using size_type = memory_internal::ExtractOrT<
>+      memory_internal::GetSizeType, Alloc,
>+      typename std::make_unsigned<difference_type>::type>;
>+
>+  // propagate_on_container_copy_assignment:
>+  // Alloc::propagate_on_container_copy_assignment if present, otherwise
>+  // std::false_type
>+  using propagate_on_container_copy_assignment = memory_internal::ExtractOrT<
>+      memory_internal::GetPropagateOnContainerCopyAssignment, Alloc,
>+      std::false_type>;
>+
>+  // propagate_on_container_move_assignment:
>+  // Alloc::propagate_on_container_move_assignment if present, otherwise
>+  // std::false_type
>+  using propagate_on_container_move_assignment = memory_internal::ExtractOrT<
>+      memory_internal::GetPropagateOnContainerMoveAssignment, Alloc,
>+      std::false_type>;
>+
>+  // propagate_on_container_swap:
>+  // Alloc::propagate_on_container_swap if present, otherwise std::false_type
>+  using propagate_on_container_swap =
>+      memory_internal::ExtractOrT<memory_internal::GetPropagateOnContainerSwap,
>+                                  Alloc, std::false_type>;
>+
>+  // is_always_equal:
>+  // Alloc::is_always_equal if present, otherwise std::is_empty<Alloc>::type
>+  using is_always_equal =
>+      memory_internal::ExtractOrT<memory_internal::GetIsAlwaysEqual, Alloc,
>+                                  typename std::is_empty<Alloc>::type>;
>+
>+  // rebind_alloc:
>+  // Alloc::rebind<T>::other if present, otherwise Alloc<T, Args> if this Alloc
>+  // is Alloc<U, Args>
>+  template <typename T>
>+  using rebind_alloc = typename memory_internal::RebindAlloc<Alloc, T>::type;
>+
>+  // rebind_traits:
>+  // absl::allocator_traits<rebind_alloc<T>>
>+  template <typename T>
>+  using rebind_traits = absl::allocator_traits<rebind_alloc<T>>;
>+
>+  // allocate(Alloc& a, size_type n):
>+  // Calls a.allocate(n)
>+  static pointer allocate(Alloc& a,  // NOLINT(runtime/references)
>+                          size_type n) {
>+    return a.allocate(n);
>+  }
>+
>+  // allocate(Alloc& a, size_type n, const_void_pointer hint):
>+  // Calls a.allocate(n, hint) if possible.
>+  // If not possible, calls a.allocate(n)
>+  static pointer allocate(Alloc& a, size_type n,  // NOLINT(runtime/references)
>+                          const_void_pointer hint) {
>+    return allocate_impl(0, a, n, hint);
>+  }
>+
>+  // deallocate(Alloc& a, pointer p, size_type n):
>+  // Calls a.deallocate(p, n)
>+  static void deallocate(Alloc& a, pointer p,  // NOLINT(runtime/references)
>+                         size_type n) {
>+    a.deallocate(p, n);
>+  }
>+
>+  // construct(Alloc& a, T* p, Args&&... args):
>+  // Calls a.construct(p, std::forward<Args>(args)...) if possible.
>+  // If not possible, calls
>+  //   ::new (static_cast<void*>(p)) T(std::forward<Args>(args)...)
>+  template <typename T, typename... Args>
>+  static void construct(Alloc& a, T* p,  // NOLINT(runtime/references)
>+                        Args&&... args) {
>+    construct_impl(0, a, p, std::forward<Args>(args)...);
>+  }
>+
>+  // destroy(Alloc& a, T* p):
>+  // Calls a.destroy(p) if possible. If not possible, calls p->~T().
>+  template <typename T>
>+  static void destroy(Alloc& a, T* p) {  // NOLINT(runtime/references)
>+    destroy_impl(0, a, p);
>+  }
>+
>+  // max_size(const Alloc& a):
>+  // Returns a.max_size() if possible. If not possible, returns
>+  //   std::numeric_limits<size_type>::max() / sizeof(value_type)
>+  static size_type max_size(const Alloc& a) { return max_size_impl(0, a); }
>+
>+  // select_on_container_copy_construction(const Alloc& a):
>+  // Returns a.select_on_container_copy_construction() if possible.
>+  // If not possible, returns a.
>+  static Alloc select_on_container_copy_construction(const Alloc& a) {
>+    return select_on_container_copy_construction_impl(0, a);
>+  }
>+
>+ private:
>+  template <typename A>
>+  static auto allocate_impl(int, A& a,  // NOLINT(runtime/references)
>+                            size_type n, const_void_pointer hint)
>+      -> decltype(a.allocate(n, hint)) {
>+    return a.allocate(n, hint);
>+  }
>+  static pointer allocate_impl(char, Alloc& a,  // NOLINT(runtime/references)
>+                               size_type n, const_void_pointer) {
>+    return a.allocate(n);
>+  }
>+
>+  template <typename A, typename... Args>
>+  static auto construct_impl(int, A& a,  // NOLINT(runtime/references)
>+                             Args&&... args)
>+      -> decltype(a.construct(std::forward<Args>(args)...)) {
>+    a.construct(std::forward<Args>(args)...);
>+  }
>+
>+  template <typename T, typename... Args>
>+  static void construct_impl(char, Alloc&, T* p, Args&&... args) {
>+    ::new (static_cast<void*>(p)) T(std::forward<Args>(args)...);
>+  }
>+
>+  template <typename A, typename T>
>+  static auto destroy_impl(int, A& a,  // NOLINT(runtime/references)
>+                           T* p) -> decltype(a.destroy(p)) {
>+    a.destroy(p);
>+  }
>+  template <typename T>
>+  static void destroy_impl(char, Alloc&, T* p) {
>+    p->~T();
>+  }
>+
>+  template <typename A>
>+  static auto max_size_impl(int, const A& a) -> decltype(a.max_size()) {
>+    return a.max_size();
>+  }
>+  static size_type max_size_impl(char, const Alloc&) {
>+    return std::numeric_limits<size_type>::max() / sizeof(value_type);
>+  }
>+
>+  template <typename A>
>+  static auto select_on_container_copy_construction_impl(int, const A& a)
>+      -> decltype(a.select_on_container_copy_construction()) {
>+    return a.select_on_container_copy_construction();
>+  }
>+  static Alloc select_on_container_copy_construction_impl(char,
>+                                                          const Alloc& a) {
>+    return a;
>+  }
>+};
>+
>+namespace memory_internal {
>+
>+// This template alias transforms Alloc::is_nothrow into a metafunction with
>+// Alloc as a parameter so it can be used with ExtractOrT<>.
>+template <typename Alloc>
>+using GetIsNothrow = typename Alloc::is_nothrow;
>+
>+}  // namespace memory_internal
>+
>+// ABSL_ALLOCATOR_NOTHROW is a build time configuration macro for user to
>+// specify whether the default allocation function can throw or never throws.
>+// If the allocation function never throws, user should define it to a non-zero
>+// value (e.g. via `-DABSL_ALLOCATOR_NOTHROW`).
>+// If the allocation function can throw, user should leave it undefined or
>+// define it to zero.
>+//
>+// allocator_is_nothrow<Alloc> is a traits class that derives from
>+// Alloc::is_nothrow if present, otherwise std::false_type. It's specialized
>+// for Alloc = std::allocator<T> for any type T according to the state of
>+// ABSL_ALLOCATOR_NOTHROW.
>+//
>+// default_allocator_is_nothrow is a class that derives from std::true_type
>+// when the default allocator (global operator new) never throws, and
>+// std::false_type when it can throw. It is a convenience shorthand for writing
>+// allocator_is_nothrow<std::allocator<T>> (T can be any type).
>+// NOTE: allocator_is_nothrow<std::allocator<T>> is guaranteed to derive from
>+// the same type for all T, because users should specialize neither
>+// allocator_is_nothrow nor std::allocator.
>+template <typename Alloc>
>+struct allocator_is_nothrow
>+    : memory_internal::ExtractOrT<memory_internal::GetIsNothrow, Alloc,
>+                                  std::false_type> {};
>+
>+// FIXME: Define ABSL_ALLOCATOR_NOTHROW
>+#if 1
>+template <typename T>
>+struct allocator_is_nothrow<std::allocator<T>> : std::true_type {};
>+struct default_allocator_is_nothrow : std::true_type {};
>+#else
>+struct default_allocator_is_nothrow : std::false_type {};
>+#endif
>+
>+namespace memory_internal {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+template <typename Allocator, typename StorageElement, typename... Args>
>+void ConstructStorage(Allocator* alloc, StorageElement* first,
>+                      StorageElement* last, const Args&... args) {
>+  for (StorageElement* cur = first; cur != last; ++cur) {
>+    try {
>+      std::allocator_traits<Allocator>::construct(*alloc, cur, args...);
>+    } catch (...) {
>+      while (cur != first) {
>+        --cur;
>+        std::allocator_traits<Allocator>::destroy(*alloc, cur);
>+      }
>+      throw;
>+    }
>+  }
>+}
>+template <typename Allocator, typename StorageElement, typename Iterator>
>+void CopyToStorageFromRange(Allocator* alloc, StorageElement* destination,
>+                            Iterator first, Iterator last) {
>+  for (StorageElement* cur = destination; first != last;
>+       static_cast<void>(++cur), static_cast<void>(++first)) {
>+    try {
>+      std::allocator_traits<Allocator>::construct(*alloc, cur, *first);
>+    } catch (...) {
>+      while (cur != destination) {
>+        --cur;
>+        std::allocator_traits<Allocator>::destroy(*alloc, cur);
>+      }
>+      throw;
>+    }
>+  }
>+}
>+#else   // ABSL_HAVE_EXCEPTIONS
>+template <typename Allocator, typename StorageElement, typename... Args>
>+void ConstructStorage(Allocator* alloc, StorageElement* first,
>+                      StorageElement* last, const Args&... args) {
>+  for (; first != last; ++first) {
>+    std::allocator_traits<Allocator>::construct(*alloc, first, args...);
>+  }
>+}
>+template <typename Allocator, typename StorageElement, typename Iterator>
>+void CopyToStorageFromRange(Allocator* alloc, StorageElement* destination,
>+                            Iterator first, Iterator last) {
>+  for (; first != last;
>+       static_cast<void>(++destination), static_cast<void>(++first)) {
>+    std::allocator_traits<Allocator>::construct(*alloc, destination, *first);
>+  }
>+}
>+#endif  // ABSL_HAVE_EXCEPTIONS
>+}  // namespace memory_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_MEMORY_MEMORY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_exception_safety_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_exception_safety_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d1f6e84f10f8a668ac25fb6d90ccc5a783202219
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_exception_safety_test.cc
>@@ -0,0 +1,52 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/memory/memory.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+namespace absl {
>+namespace {
>+
>+constexpr int kLength = 50;
>+using Thrower = testing::ThrowingValue<testing::TypeSpec::kEverythingThrows>;
>+using ThrowerStorage =
>+    absl::aligned_storage_t<sizeof(Thrower), alignof(Thrower)>;
>+using ThrowerList = std::array<ThrowerStorage, kLength>;
>+
>+TEST(MakeUnique, CheckForLeaks) {
>+  constexpr int kValue = 321;
>+  auto tester = testing::MakeExceptionSafetyTester()
>+                    .WithInitialValue(Thrower(kValue))
>+                    // Ensures make_unique does not modify the input. The real
>+                    // test, though, is ConstructorTracker checking for leaks.
>+                    .WithInvariants(testing::strong_guarantee);
>+
>+  EXPECT_TRUE(tester.Test([](Thrower* thrower) {
>+    static_cast<void>(absl::make_unique<Thrower>(*thrower));
>+  }));
>+
>+  EXPECT_TRUE(tester.Test([](Thrower* thrower) {
>+    static_cast<void>(absl::make_unique<Thrower>(std::move(*thrower)));
>+  }));
>+
>+  // Test T[n] overload
>+  EXPECT_TRUE(tester.Test([&](Thrower*) {
>+    static_cast<void>(absl::make_unique<Thrower[]>(kLength));
>+  }));
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..dee9b486a30d30d255705ac3814f19f781994053
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/memory/memory_test.cc
>@@ -0,0 +1,614 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Tests for pointer utilities.
>+
>+#include "absl/memory/memory.h"
>+
>+#include <sys/types.h>
>+#include <cstddef>
>+#include <memory>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+using ::testing::ElementsAre;
>+using ::testing::Return;
>+
>+// This class creates observable behavior to verify that a destructor has
>+// been called, via the instance_count variable.
>+class DestructorVerifier {
>+ public:
>+  DestructorVerifier() { ++instance_count_;  }
>+  DestructorVerifier(const DestructorVerifier&) = delete;
>+  DestructorVerifier& operator=(const DestructorVerifier&) = delete;
>+  ~DestructorVerifier() {  --instance_count_; }
>+
>+  // The number of instances of this class currently active.
>+  static int instance_count() { return instance_count_; }
>+
>+ private:
>+  // The number of instances of this class currently active.
>+  static int instance_count_;
>+};
>+
>+int DestructorVerifier::instance_count_ = 0;
>+
>+TEST(WrapUniqueTest, WrapUnique) {
>+  // Test that the unique_ptr is constructed properly by verifying that the
>+  // destructor for its payload gets called at the proper time.
>+  {
>+    auto dv = new DestructorVerifier;
>+    EXPECT_EQ(1, DestructorVerifier::instance_count());
>+    std::unique_ptr<DestructorVerifier> ptr = absl::WrapUnique(dv);
>+    EXPECT_EQ(1, DestructorVerifier::instance_count());
>+  }
>+  EXPECT_EQ(0, DestructorVerifier::instance_count());
>+}
>+TEST(MakeUniqueTest, Basic) {
>+  std::unique_ptr<std::string> p = absl::make_unique<std::string>();
>+  EXPECT_EQ("", *p);
>+  p = absl::make_unique<std::string>("hi");
>+  EXPECT_EQ("hi", *p);
>+}
>+
>+struct MoveOnly {
>+  MoveOnly() = default;
>+  explicit MoveOnly(int i1) : ip1{new int{i1}} {}
>+  MoveOnly(int i1, int i2) : ip1{new int{i1}}, ip2{new int{i2}} {}
>+  std::unique_ptr<int> ip1;
>+  std::unique_ptr<int> ip2;
>+};
>+
>+struct AcceptMoveOnly {
>+  explicit AcceptMoveOnly(MoveOnly m) : m_(std::move(m)) {}
>+  MoveOnly m_;
>+};
>+
>+TEST(MakeUniqueTest, MoveOnlyTypeAndValue) {
>+  using ExpectedType = std::unique_ptr<MoveOnly>;
>+  {
>+    auto p = absl::make_unique<MoveOnly>();
>+    static_assert(std::is_same<decltype(p), ExpectedType>::value,
>+                  "unexpected return type");
>+    EXPECT_TRUE(!p->ip1);
>+    EXPECT_TRUE(!p->ip2);
>+  }
>+  {
>+    auto p = absl::make_unique<MoveOnly>(1);
>+    static_assert(std::is_same<decltype(p), ExpectedType>::value,
>+                  "unexpected return type");
>+    EXPECT_TRUE(p->ip1 && *p->ip1 == 1);
>+    EXPECT_TRUE(!p->ip2);
>+  }
>+  {
>+    auto p = absl::make_unique<MoveOnly>(1, 2);
>+    static_assert(std::is_same<decltype(p), ExpectedType>::value,
>+                  "unexpected return type");
>+    EXPECT_TRUE(p->ip1 && *p->ip1 == 1);
>+    EXPECT_TRUE(p->ip2 && *p->ip2 == 2);
>+  }
>+}
>+
>+TEST(MakeUniqueTest, AcceptMoveOnly) {
>+  auto p = absl::make_unique<AcceptMoveOnly>(MoveOnly());
>+  p = std::unique_ptr<AcceptMoveOnly>(new AcceptMoveOnly(MoveOnly()));
>+}
>+
>+struct ArrayWatch {
>+  void* operator new[](size_t n) {
>+    allocs().push_back(n);
>+    return ::operator new[](n);
>+  }
>+  void operator delete[](void* p) {
>+    return ::operator delete[](p);
>+  }
>+  static std::vector<size_t>& allocs() {
>+    static auto& v = *new std::vector<size_t>;
>+    return v;
>+  }
>+};
>+
>+TEST(Make_UniqueTest, Array) {
>+  // Ensure state is clean before we start so that these tests
>+  // are order-agnostic.
>+  ArrayWatch::allocs().clear();
>+
>+  auto p = absl::make_unique<ArrayWatch[]>(5);
>+  static_assert(std::is_same<decltype(p),
>+                             std::unique_ptr<ArrayWatch[]>>::value,
>+                "unexpected return type");
>+  EXPECT_THAT(ArrayWatch::allocs(), ElementsAre(5 * sizeof(ArrayWatch)));
>+}
>+
>+TEST(Make_UniqueTest, NotAmbiguousWithStdMakeUnique) {
>+  // Ensure that absl::make_unique is not ambiguous with std::make_unique.
>+  // In C++14 mode, the below call to make_unique has both types as candidates.
>+  struct TakesStdType {
>+    explicit TakesStdType(const std::vector<int> &vec) {}
>+  };
>+  using absl::make_unique;
>+  make_unique<TakesStdType>(std::vector<int>());
>+}
>+
>+#if 0
>+// TODO(billydonahue): Make a proper NC test.
>+// These tests shouldn't compile.
>+TEST(MakeUniqueTestNC, AcceptMoveOnlyLvalue) {
>+  auto m = MoveOnly();
>+  auto p = absl::make_unique<AcceptMoveOnly>(m);
>+}
>+TEST(MakeUniqueTestNC, KnownBoundArray) {
>+  auto p = absl::make_unique<ArrayWatch[5]>();
>+}
>+#endif
>+
>+TEST(RawPtrTest, RawPointer) {
>+  int i = 5;
>+  EXPECT_EQ(&i, absl::RawPtr(&i));
>+}
>+
>+TEST(RawPtrTest, SmartPointer) {
>+  int* o = new int(5);
>+  std::unique_ptr<int> p(o);
>+  EXPECT_EQ(o, absl::RawPtr(p));
>+}
>+
>+class IntPointerNonConstDeref {
>+ public:
>+  explicit IntPointerNonConstDeref(int* p) : p_(p) {}
>+  friend bool operator!=(const IntPointerNonConstDeref& a, std::nullptr_t) {
>+    return a.p_ != nullptr;
>+  }
>+  int& operator*() { return *p_; }
>+
>+ private:
>+  std::unique_ptr<int> p_;
>+};
>+
>+TEST(RawPtrTest, SmartPointerNonConstDereference) {
>+  int* o = new int(5);
>+  IntPointerNonConstDeref p(o);
>+  EXPECT_EQ(o, absl::RawPtr(p));
>+}
>+
>+TEST(RawPtrTest, NullValuedRawPointer) {
>+  int* p = nullptr;
>+  EXPECT_EQ(nullptr, absl::RawPtr(p));
>+}
>+
>+TEST(RawPtrTest, NullValuedSmartPointer) {
>+  std::unique_ptr<int> p;
>+  EXPECT_EQ(nullptr, absl::RawPtr(p));
>+}
>+
>+TEST(RawPtrTest, Nullptr) {
>+  auto p = absl::RawPtr(nullptr);
>+  EXPECT_TRUE((std::is_same<std::nullptr_t, decltype(p)>::value));
>+  EXPECT_EQ(nullptr, p);
>+}
>+
>+TEST(RawPtrTest, Null) {
>+  auto p = absl::RawPtr(nullptr);
>+  EXPECT_TRUE((std::is_same<std::nullptr_t, decltype(p)>::value));
>+  EXPECT_EQ(nullptr, p);
>+}
>+
>+TEST(RawPtrTest, Zero) {
>+  auto p = absl::RawPtr(nullptr);
>+  EXPECT_TRUE((std::is_same<std::nullptr_t, decltype(p)>::value));
>+  EXPECT_EQ(nullptr, p);
>+}
>+
>+TEST(ShareUniquePtrTest, Share) {
>+  auto up = absl::make_unique<int>();
>+  int* rp = up.get();
>+  auto sp = absl::ShareUniquePtr(std::move(up));
>+  EXPECT_EQ(sp.get(), rp);
>+}
>+
>+TEST(ShareUniquePtrTest, ShareNull) {
>+  struct NeverDie {
>+    using pointer = void*;
>+    void operator()(pointer) {
>+      ASSERT_TRUE(false) << "Deleter should not have been called.";
>+    }
>+  };
>+
>+  std::unique_ptr<void, NeverDie> up;
>+  auto sp = absl::ShareUniquePtr(std::move(up));
>+}
>+
>+TEST(WeakenPtrTest, Weak) {
>+  auto sp = std::make_shared<int>();
>+  auto wp = absl::WeakenPtr(sp);
>+  EXPECT_EQ(sp.get(), wp.lock().get());
>+  sp.reset();
>+  EXPECT_TRUE(wp.expired());
>+}
>+
>+// Should not compile.
>+/*
>+TEST(RawPtrTest, NotAPointer) {
>+  absl::RawPtr(1.5);
>+}
>+*/
>+
>+template <typename T>
>+struct SmartPointer {
>+  using difference_type = char;
>+};
>+
>+struct PointerWith {
>+  using element_type = int32_t;
>+  using difference_type = int16_t;
>+  template <typename U>
>+  using rebind = SmartPointer<U>;
>+
>+  static PointerWith pointer_to(
>+      element_type& r) {  // NOLINT(runtime/references)
>+    return PointerWith{&r};
>+  }
>+
>+  element_type* ptr;
>+};
>+
>+template <typename... Args>
>+struct PointerWithout {};
>+
>+TEST(PointerTraits, Types) {
>+  using TraitsWith = absl::pointer_traits<PointerWith>;
>+  EXPECT_TRUE((std::is_same<TraitsWith::pointer, PointerWith>::value));
>+  EXPECT_TRUE((std::is_same<TraitsWith::element_type, int32_t>::value));
>+  EXPECT_TRUE((std::is_same<TraitsWith::difference_type, int16_t>::value));
>+  EXPECT_TRUE((
>+      std::is_same<TraitsWith::rebind<int64_t>, SmartPointer<int64_t>>::value));
>+
>+  using TraitsWithout = absl::pointer_traits<PointerWithout<double, int>>;
>+  EXPECT_TRUE((std::is_same<TraitsWithout::pointer,
>+                            PointerWithout<double, int>>::value));
>+  EXPECT_TRUE((std::is_same<TraitsWithout::element_type, double>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<TraitsWithout ::difference_type, std::ptrdiff_t>::value));
>+  EXPECT_TRUE((std::is_same<TraitsWithout::rebind<int64_t>,
>+                            PointerWithout<int64_t, int>>::value));
>+
>+  using TraitsRawPtr = absl::pointer_traits<char*>;
>+  EXPECT_TRUE((std::is_same<TraitsRawPtr::pointer, char*>::value));
>+  EXPECT_TRUE((std::is_same<TraitsRawPtr::element_type, char>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<TraitsRawPtr::difference_type, std::ptrdiff_t>::value));
>+  EXPECT_TRUE((std::is_same<TraitsRawPtr::rebind<int64_t>, int64_t*>::value));
>+}
>+
>+TEST(PointerTraits, Functions) {
>+  int i;
>+  EXPECT_EQ(&i, absl::pointer_traits<PointerWith>::pointer_to(i).ptr);
>+  EXPECT_EQ(&i, absl::pointer_traits<int*>::pointer_to(i));
>+}
>+
>+TEST(AllocatorTraits, Typedefs) {
>+  struct A {
>+    struct value_type {};
>+  };
>+  EXPECT_TRUE((
>+      std::is_same<A,
>+                   typename absl::allocator_traits<A>::allocator_type>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<A::value_type,
>+                    typename absl::allocator_traits<A>::value_type>::value));
>+
>+  struct X {};
>+  struct HasPointer {
>+    using value_type = X;
>+    using pointer = SmartPointer<X>;
>+  };
>+  EXPECT_TRUE((std::is_same<SmartPointer<X>, typename absl::allocator_traits<
>+                                                 HasPointer>::pointer>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<A::value_type*,
>+                    typename absl::allocator_traits<A>::pointer>::value));
>+
>+  EXPECT_TRUE(
>+      (std::is_same<
>+          SmartPointer<const X>,
>+          typename absl::allocator_traits<HasPointer>::const_pointer>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<const A::value_type*,
>+                    typename absl::allocator_traits<A>::const_pointer>::value));
>+
>+  struct HasVoidPointer {
>+    using value_type = X;
>+    struct void_pointer {};
>+  };
>+
>+  EXPECT_TRUE((std::is_same<HasVoidPointer::void_pointer,
>+                            typename absl::allocator_traits<
>+                                HasVoidPointer>::void_pointer>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<SmartPointer<void>, typename absl::allocator_traits<
>+                                            HasPointer>::void_pointer>::value));
>+
>+  struct HasConstVoidPointer {
>+    using value_type = X;
>+    struct const_void_pointer {};
>+  };
>+
>+  EXPECT_TRUE(
>+      (std::is_same<HasConstVoidPointer::const_void_pointer,
>+                    typename absl::allocator_traits<
>+                        HasConstVoidPointer>::const_void_pointer>::value));
>+  EXPECT_TRUE((std::is_same<SmartPointer<const void>,
>+                            typename absl::allocator_traits<
>+                                HasPointer>::const_void_pointer>::value));
>+
>+  struct HasDifferenceType {
>+    using value_type = X;
>+    using difference_type = int;
>+  };
>+  EXPECT_TRUE(
>+      (std::is_same<int, typename absl::allocator_traits<
>+                             HasDifferenceType>::difference_type>::value));
>+  EXPECT_TRUE((std::is_same<char, typename absl::allocator_traits<
>+                                      HasPointer>::difference_type>::value));
>+
>+  struct HasSizeType {
>+    using value_type = X;
>+    using size_type = unsigned int;
>+  };
>+  EXPECT_TRUE((std::is_same<unsigned int, typename absl::allocator_traits<
>+                                              HasSizeType>::size_type>::value));
>+  EXPECT_TRUE((std::is_same<unsigned char, typename absl::allocator_traits<
>+                                               HasPointer>::size_type>::value));
>+
>+  struct HasPropagateOnCopy {
>+    using value_type = X;
>+    struct propagate_on_container_copy_assignment {};
>+  };
>+
>+  EXPECT_TRUE(
>+      (std::is_same<HasPropagateOnCopy::propagate_on_container_copy_assignment,
>+                    typename absl::allocator_traits<HasPropagateOnCopy>::
>+                        propagate_on_container_copy_assignment>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<std::false_type,
>+                    typename absl::allocator_traits<
>+                        A>::propagate_on_container_copy_assignment>::value));
>+
>+  struct HasPropagateOnMove {
>+    using value_type = X;
>+    struct propagate_on_container_move_assignment {};
>+  };
>+
>+  EXPECT_TRUE(
>+      (std::is_same<HasPropagateOnMove::propagate_on_container_move_assignment,
>+                    typename absl::allocator_traits<HasPropagateOnMove>::
>+                        propagate_on_container_move_assignment>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<std::false_type,
>+                    typename absl::allocator_traits<
>+                        A>::propagate_on_container_move_assignment>::value));
>+
>+  struct HasPropagateOnSwap {
>+    using value_type = X;
>+    struct propagate_on_container_swap {};
>+  };
>+
>+  EXPECT_TRUE(
>+      (std::is_same<HasPropagateOnSwap::propagate_on_container_swap,
>+                    typename absl::allocator_traits<HasPropagateOnSwap>::
>+                        propagate_on_container_swap>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<std::false_type, typename absl::allocator_traits<A>::
>+                                         propagate_on_container_swap>::value));
>+
>+  struct HasIsAlwaysEqual {
>+    using value_type = X;
>+    struct is_always_equal {};
>+  };
>+
>+  EXPECT_TRUE((std::is_same<HasIsAlwaysEqual::is_always_equal,
>+                            typename absl::allocator_traits<
>+                                HasIsAlwaysEqual>::is_always_equal>::value));
>+  EXPECT_TRUE((std::is_same<std::true_type, typename absl::allocator_traits<
>+                                                A>::is_always_equal>::value));
>+  struct NonEmpty {
>+    using value_type = X;
>+    int i;
>+  };
>+  EXPECT_TRUE(
>+      (std::is_same<std::false_type,
>+                    absl::allocator_traits<NonEmpty>::is_always_equal>::value));
>+}
>+
>+template <typename T>
>+struct AllocWithPrivateInheritance : private std::allocator<T> {
>+  using value_type = T;
>+};
>+
>+TEST(AllocatorTraits, RebindWithPrivateInheritance) {
>+  // Regression test for some versions of gcc that do not like the sfinae we
>+  // used in combination with private inheritance.
>+  EXPECT_TRUE(
>+      (std::is_same<AllocWithPrivateInheritance<int>,
>+                    absl::allocator_traits<AllocWithPrivateInheritance<char>>::
>+                        rebind_alloc<int>>::value));
>+}
>+
>+template <typename T>
>+struct Rebound {};
>+
>+struct AllocWithRebind {
>+  using value_type = int;
>+  template <typename T>
>+  struct rebind {
>+    using other = Rebound<T>;
>+  };
>+};
>+
>+template <typename T, typename U>
>+struct AllocWithoutRebind {
>+  using value_type = int;
>+};
>+
>+TEST(AllocatorTraits, Rebind) {
>+  EXPECT_TRUE(
>+      (std::is_same<Rebound<int>,
>+                    typename absl::allocator_traits<
>+                        AllocWithRebind>::template rebind_alloc<int>>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<absl::allocator_traits<Rebound<int>>,
>+                    typename absl::allocator_traits<
>+                        AllocWithRebind>::template rebind_traits<int>>::value));
>+
>+  EXPECT_TRUE(
>+      (std::is_same<AllocWithoutRebind<double, char>,
>+                    typename absl::allocator_traits<AllocWithoutRebind<
>+                        int, char>>::template rebind_alloc<double>>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<absl::allocator_traits<AllocWithoutRebind<double, char>>,
>+                    typename absl::allocator_traits<AllocWithoutRebind<
>+                        int, char>>::template rebind_traits<double>>::value));
>+}
>+
>+struct TestValue {
>+  TestValue() {}
>+  explicit TestValue(int* trace) : trace(trace) { ++*trace; }
>+  ~TestValue() {
>+    if (trace) --*trace;
>+  }
>+  int* trace = nullptr;
>+};
>+
>+struct MinimalMockAllocator {
>+  MinimalMockAllocator() : value(0) {}
>+  explicit MinimalMockAllocator(int value) : value(value) {}
>+  MinimalMockAllocator(const MinimalMockAllocator& other)
>+      : value(other.value) {}
>+  using value_type = TestValue;
>+  MOCK_METHOD1(allocate, value_type*(size_t));
>+  MOCK_METHOD2(deallocate, void(value_type*, size_t));
>+
>+  int value;
>+};
>+
>+TEST(AllocatorTraits, FunctionsMinimal) {
>+  int trace = 0;
>+  int hint;
>+  TestValue x(&trace);
>+  MinimalMockAllocator mock;
>+  using Traits = absl::allocator_traits<MinimalMockAllocator>;
>+  EXPECT_CALL(mock, allocate(7)).WillRepeatedly(Return(&x));
>+  EXPECT_CALL(mock, deallocate(&x, 7));
>+
>+  EXPECT_EQ(&x, Traits::allocate(mock, 7));
>+  Traits::allocate(mock, 7, static_cast<const void*>(&hint));
>+  EXPECT_EQ(&x, Traits::allocate(mock, 7, static_cast<const void*>(&hint)));
>+  Traits::deallocate(mock, &x, 7);
>+
>+  EXPECT_EQ(1, trace);
>+  Traits::construct(mock, &x, &trace);
>+  EXPECT_EQ(2, trace);
>+  Traits::destroy(mock, &x);
>+  EXPECT_EQ(1, trace);
>+
>+  EXPECT_EQ(std::numeric_limits<size_t>::max() / sizeof(TestValue),
>+            Traits::max_size(mock));
>+
>+  EXPECT_EQ(0, mock.value);
>+  EXPECT_EQ(0, Traits::select_on_container_copy_construction(mock).value);
>+}
>+
>+struct FullMockAllocator {
>+  FullMockAllocator() : value(0) {}
>+  explicit FullMockAllocator(int value) : value(value) {}
>+  FullMockAllocator(const FullMockAllocator& other) : value(other.value) {}
>+  using value_type = TestValue;
>+  MOCK_METHOD1(allocate, value_type*(size_t));
>+  MOCK_METHOD2(allocate, value_type*(size_t, const void*));
>+  MOCK_METHOD2(construct, void(value_type*, int*));
>+  MOCK_METHOD1(destroy, void(value_type*));
>+  MOCK_CONST_METHOD0(max_size, size_t());
>+  MOCK_CONST_METHOD0(select_on_container_copy_construction,
>+                     FullMockAllocator());
>+
>+  int value;
>+};
>+
>+TEST(AllocatorTraits, FunctionsFull) {
>+  int trace = 0;
>+  int hint;
>+  TestValue x(&trace), y;
>+  FullMockAllocator mock;
>+  using Traits = absl::allocator_traits<FullMockAllocator>;
>+  EXPECT_CALL(mock, allocate(7)).WillRepeatedly(Return(&x));
>+  EXPECT_CALL(mock, allocate(13, &hint)).WillRepeatedly(Return(&y));
>+  EXPECT_CALL(mock, construct(&x, &trace));
>+  EXPECT_CALL(mock, destroy(&x));
>+  EXPECT_CALL(mock, max_size()).WillRepeatedly(Return(17));
>+  EXPECT_CALL(mock, select_on_container_copy_construction())
>+      .WillRepeatedly(Return(FullMockAllocator(23)));
>+
>+  EXPECT_EQ(&x, Traits::allocate(mock, 7));
>+  EXPECT_EQ(&y, Traits::allocate(mock, 13, static_cast<const void*>(&hint)));
>+
>+  EXPECT_EQ(1, trace);
>+  Traits::construct(mock, &x, &trace);
>+  EXPECT_EQ(1, trace);
>+  Traits::destroy(mock, &x);
>+  EXPECT_EQ(1, trace);
>+
>+  EXPECT_EQ(17, Traits::max_size(mock));
>+
>+  EXPECT_EQ(0, mock.value);
>+  EXPECT_EQ(23, Traits::select_on_container_copy_construction(mock).value);
>+}
>+
>+TEST(AllocatorNoThrowTest, DefaultAllocator) {
>+#if ABSL_ALLOCATOR_NOTHROW
>+  EXPECT_TRUE(absl::default_allocator_is_nothrow::value);
>+#else
>+  EXPECT_FALSE(absl::default_allocator_is_nothrow::value);
>+#endif
>+}
>+
>+TEST(AllocatorNoThrowTest, StdAllocator) {
>+#if ABSL_ALLOCATOR_NOTHROW
>+  EXPECT_TRUE(absl::allocator_is_nothrow<std::allocator<int>>::value);
>+#else
>+  EXPECT_FALSE(absl::allocator_is_nothrow<std::allocator<int>>::value);
>+#endif
>+}
>+
>+TEST(AllocatorNoThrowTest, CustomAllocator) {
>+  struct NoThrowAllocator {
>+    using is_nothrow = std::true_type;
>+  };
>+  struct CanThrowAllocator {
>+    using is_nothrow = std::false_type;
>+  };
>+  struct UnspecifiedAllocator {
>+  };
>+  EXPECT_TRUE(absl::allocator_is_nothrow<NoThrowAllocator>::value);
>+  EXPECT_FALSE(absl::allocator_is_nothrow<CanThrowAllocator>::value);
>+  EXPECT_FALSE(absl::allocator_is_nothrow<UnspecifiedAllocator>::value);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbc9717ddd33c2fa44a6afb00fbb7dd1a9578b88
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.bazel
>@@ -0,0 +1,29 @@
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "type_traits",
>+    hdrs = ["type_traits.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base:config",
>+    ],
>+)
>+
>+cc_test(
>+    name = "type_traits_test",
>+    srcs = ["type_traits_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":type_traits",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..6757219c27354994e5da0c5e4613dda88940406d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/BUILD.gn
>@@ -0,0 +1,30 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("type_traits") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "type_traits.h",
>+  ]
>+  deps = [
>+    "../base:config",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..adb0ceb754df527801df576748bf5c2816e954aa
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/CMakeLists.txt
>@@ -0,0 +1,52 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND META_PUBLIC_HEADERS
>+  "type_traits.h"
>+)
>+
>+
>+#
>+## TESTS
>+#
>+
>+# test type_traits_test
>+list(APPEND TYPE_TRAITS_TEST_SRC
>+  "type_traits_test.cc"
>+  ${META_PUBLIC_HEADERS}
>+)
>+
>+absl_header_library(
>+  TARGET
>+    absl_meta
>+  PUBLIC_LIBRARIES
>+    absl::base
>+  EXPORT_NAME
>+    meta
>+ )
>+
>+absl_test(
>+  TARGET
>+    type_traits_test
>+  SOURCES
>+    ${TYPE_TRAITS_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::base
>+    absl::meta
>+)
>+
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..457b890841a64fb4ed36cde8621d7822190b798d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits.h
>@@ -0,0 +1,419 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// type_traits.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains C++11-compatible versions of standard <type_traits> API
>+// functions for determining the characteristics of types. Such traits can
>+// support type inference, classification, and transformation, as well as
>+// make it easier to write templates based on generic type behavior.
>+//
>+// See http://en.cppreference.com/w/cpp/header/type_traits
>+//
>+// WARNING: use of many of the constructs in this header will count as "complex
>+// template metaprogramming", so before proceeding, please carefully consider
>+// https://google.github.io/styleguide/cppguide.html#Template_metaprogramming
>+//
>+// WARNING: using template metaprogramming to detect or depend on API
>+// features is brittle and not guaranteed. Neither the standard library nor
>+// Abseil provides any guarantee that APIs are stable in the face of template
>+// metaprogramming. Use with caution.
>+#ifndef ABSL_META_TYPE_TRAITS_H_
>+#define ABSL_META_TYPE_TRAITS_H_
>+
>+#include <stddef.h>
>+#include <functional>
>+#include <type_traits>
>+
>+#include "absl/base/config.h"
>+
>+namespace absl {
>+
>+namespace type_traits_internal {
>+
>+template <typename... Ts>
>+struct VoidTImpl {
>+  using type = void;
>+};
>+
>+// This trick to retrieve a default alignment is necessary for our
>+// implementation of aligned_storage_t to be consistent with any implementation
>+// of std::aligned_storage.
>+template <size_t Len, typename T = std::aligned_storage<Len>>
>+struct default_alignment_of_aligned_storage;
>+
>+template <size_t Len, size_t Align>
>+struct default_alignment_of_aligned_storage<Len,
>+                                            std::aligned_storage<Len, Align>> {
>+  static constexpr size_t value = Align;
>+};
>+
>+////////////////////////////////
>+// Library Fundamentals V2 TS //
>+////////////////////////////////
>+
>+// NOTE: The `is_detected` family of templates here differ from the library
>+// fundamentals specification in that for library fundamentals, `Op<Args...>` is
>+// evaluated as soon as the type `is_detected<Op, Args...>` undergoes
>+// substitution, regardless of whether or not the `::value` is accessed. That
>+// is inconsistent with all other standard traits and prevents lazy evaluation
>+// in larger contexts (such as if the `is_detected` check is a trailing argument
>+// of a `conjunction`. This implementation opts to instead be lazy in the same
>+// way that the standard traits are (this "defect" of the detection idiom
>+// specifications has been reported).
>+
>+template <class Enabler, template <class...> class Op, class... Args>
>+struct is_detected_impl {
>+  using type = std::false_type;
>+};
>+
>+template <template <class...> class Op, class... Args>
>+struct is_detected_impl<typename VoidTImpl<Op<Args...>>::type, Op, Args...> {
>+  using type = std::true_type;
>+};
>+
>+template <template <class...> class Op, class... Args>
>+struct is_detected : is_detected_impl<void, Op, Args...>::type {};
>+
>+template <class Enabler, class To, template <class...> class Op, class... Args>
>+struct is_detected_convertible_impl {
>+  using type = std::false_type;
>+};
>+
>+template <class To, template <class...> class Op, class... Args>
>+struct is_detected_convertible_impl<
>+    typename std::enable_if<std::is_convertible<Op<Args...>, To>::value>::type,
>+    To, Op, Args...> {
>+  using type = std::true_type;
>+};
>+
>+template <class To, template <class...> class Op, class... Args>
>+struct is_detected_convertible
>+    : is_detected_convertible_impl<void, To, Op, Args...>::type {};
>+
>+}  // namespace type_traits_internal
>+
>+// void_t()
>+//
>+// Ignores the type of any its arguments and returns `void`. In general, this
>+// metafunction allows you to create a general case that maps to `void` while
>+// allowing specializations that map to specific types.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++17
>+// `std::void_t` metafunction.
>+//
>+// NOTE: `absl::void_t` does not use the standard-specified implementation so
>+// that it can remain compatible with gcc < 5.1. This can introduce slightly
>+// different behavior, such as when ordering partial specializations.
>+template <typename... Ts>
>+using void_t = typename type_traits_internal::VoidTImpl<Ts...>::type;
>+
>+// conjunction
>+//
>+// Performs a compile-time logical AND operation on the passed types (which
>+// must have  `::value` members convertible to `bool`. Short-circuits if it
>+// encounters any `false` members (and does not compare the `::value` members
>+// of any remaining arguments).
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++17
>+// `std::conjunction` metafunction.
>+template <typename... Ts>
>+struct conjunction;
>+
>+template <typename T, typename... Ts>
>+struct conjunction<T, Ts...>
>+    : std::conditional<T::value, conjunction<Ts...>, T>::type {};
>+
>+template <typename T>
>+struct conjunction<T> : T {};
>+
>+template <>
>+struct conjunction<> : std::true_type {};
>+
>+// disjunction
>+//
>+// Performs a compile-time logical OR operation on the passed types (which
>+// must have  `::value` members convertible to `bool`. Short-circuits if it
>+// encounters any `true` members (and does not compare the `::value` members
>+// of any remaining arguments).
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++17
>+// `std::disjunction` metafunction.
>+template <typename... Ts>
>+struct disjunction;
>+
>+template <typename T, typename... Ts>
>+struct disjunction<T, Ts...> :
>+      std::conditional<T::value, T, disjunction<Ts...>>::type {};
>+
>+template <typename T>
>+struct disjunction<T> : T {};
>+
>+template <>
>+struct disjunction<> : std::false_type {};
>+
>+// negation
>+//
>+// Performs a compile-time logical NOT operation on the passed type (which
>+// must have  `::value` members convertible to `bool`.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++17
>+// `std::negation` metafunction.
>+template <typename T>
>+struct negation : std::integral_constant<bool, !T::value> {};
>+
>+// is_trivially_destructible()
>+//
>+// Determines whether the passed type `T` is trivially destructable.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++11
>+// `std::is_trivially_destructible()` metafunction for platforms that have
>+// incomplete C++11 support (such as libstdc++ 4.x). On any platforms that do
>+// fully support C++11, we check whether this yields the same result as the std
>+// implementation.
>+//
>+// NOTE: the extensions (__has_trivial_xxx) are implemented in gcc (version >=
>+// 4.3) and clang. Since we are supporting libstdc++ > 4.7, they should always
>+// be present. These  extensions are documented at
>+// https://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html#Type-Traits.
>+template <typename T>
>+struct is_trivially_destructible
>+    : std::integral_constant<bool, __has_trivial_destructor(T) &&
>+                                   std::is_destructible<T>::value> {
>+#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
>+ private:
>+  static constexpr bool compliant = std::is_trivially_destructible<T>::value ==
>+                                    is_trivially_destructible::value;
>+  static_assert(compliant || std::is_trivially_destructible<T>::value,
>+                "Not compliant with std::is_trivially_destructible; "
>+                "Standard: false, Implementation: true");
>+  static_assert(compliant || !std::is_trivially_destructible<T>::value,
>+                "Not compliant with std::is_trivially_destructible; "
>+                "Standard: true, Implementation: false");
>+#endif  // ABSL_HAVE_STD_IS_TRIVIALLY_DESTRUCTIBLE
>+};
>+
>+// is_trivially_default_constructible()
>+//
>+// Determines whether the passed type `T` is trivially default constructible.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++11
>+// `std::is_trivially_default_constructible()` metafunction for platforms that
>+// have incomplete C++11 support (such as libstdc++ 4.x). On any platforms that
>+// do fully support C++11, we check whether this yields the same result as the
>+// std implementation.
>+//
>+// NOTE: according to the C++ standard, Section: 20.15.4.3 [meta.unary.prop]
>+// "The predicate condition for a template specialization is_constructible<T,
>+// Args...> shall be satisfied if and only if the following variable
>+// definition would be well-formed for some invented variable t:
>+//
>+// T t(declval<Args>()...);
>+//
>+// is_trivially_constructible<T, Args...> additionally requires that the
>+// variable definition does not call any operation that is not trivial.
>+// For the purposes of this check, the call to std::declval is considered
>+// trivial."
>+//
>+// Notes from http://en.cppreference.com/w/cpp/types/is_constructible:
>+// In many implementations, is_nothrow_constructible also checks if the
>+// destructor throws because it is effectively noexcept(T(arg)). Same
>+// applies to is_trivially_constructible, which, in these implementations, also
>+// requires that the destructor is trivial.
>+// GCC bug 51452: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51452
>+// LWG issue 2116: http://cplusplus.github.io/LWG/lwg-active.html#2116.
>+//
>+// "T obj();" need to be well-formed and not call any nontrivial operation.
>+// Nontrivially destructible types will cause the expression to be nontrivial.
>+template <typename T>
>+struct is_trivially_default_constructible
>+    : std::integral_constant<bool, __has_trivial_constructor(T) &&
>+                                   std::is_default_constructible<T>::value &&
>+                                   is_trivially_destructible<T>::value> {
>+#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
>+ private:
>+  static constexpr bool compliant =
>+      std::is_trivially_default_constructible<T>::value ==
>+      is_trivially_default_constructible::value;
>+  static_assert(compliant || std::is_trivially_default_constructible<T>::value,
>+                "Not compliant with std::is_trivially_default_constructible; "
>+                "Standard: false, Implementation: true");
>+  static_assert(compliant || !std::is_trivially_default_constructible<T>::value,
>+                "Not compliant with std::is_trivially_default_constructible; "
>+                "Standard: true, Implementation: false");
>+#endif  // ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
>+};
>+
>+// is_trivially_copy_constructible()
>+//
>+// Determines whether the passed type `T` is trivially copy constructible.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++11
>+// `std::is_trivially_copy_constructible()` metafunction for platforms that have
>+// incomplete C++11 support (such as libstdc++ 4.x). On any platforms that do
>+// fully support C++11, we check whether this yields the same result as the std
>+// implementation.
>+//
>+// NOTE: `T obj(declval<const T&>());` needs to be well-formed and not call any
>+// nontrivial operation.  Nontrivially destructible types will cause the
>+// expression to be nontrivial.
>+template <typename T>
>+struct is_trivially_copy_constructible
>+    : std::integral_constant<bool, __has_trivial_copy(T) &&
>+                                   std::is_copy_constructible<T>::value &&
>+                                   is_trivially_destructible<T>::value> {
>+#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
>+ private:
>+  static constexpr bool compliant =
>+      std::is_trivially_copy_constructible<T>::value ==
>+      is_trivially_copy_constructible::value;
>+  static_assert(compliant || std::is_trivially_copy_constructible<T>::value,
>+                "Not compliant with std::is_trivially_copy_constructible; "
>+                "Standard: false, Implementation: true");
>+  static_assert(compliant || !std::is_trivially_copy_constructible<T>::value,
>+                "Not compliant with std::is_trivially_copy_constructible; "
>+                "Standard: true, Implementation: false");
>+#endif  // ABSL_HAVE_STD_IS_TRIVIALLY_CONSTRUCTIBLE
>+};
>+
>+// is_trivially_copy_assignable()
>+//
>+// Determines whether the passed type `T` is trivially copy assignable.
>+//
>+// This metafunction is designed to be a drop-in replacement for the C++11
>+// `std::is_trivially_copy_assignable()` metafunction for platforms that have
>+// incomplete C++11 support (such as libstdc++ 4.x). On any platforms that do
>+// fully support C++11, we check whether this yields the same result as the std
>+// implementation.
>+//
>+// NOTE: `is_assignable<T, U>::value` is `true` if the expression
>+// `declval<T>() = declval<U>()` is well-formed when treated as an unevaluated
>+// operand. `is_trivially_assignable<T, U>` requires the assignment to call no
>+// operation that is not trivial. `is_trivially_copy_assignable<T>` is simply
>+// `is_trivially_assignable<T&, const T&>`.
>+template <typename T>
>+struct is_trivially_copy_assignable
>+    : std::integral_constant<
>+          bool, __has_trivial_assign(typename std::remove_reference<T>::type) &&
>+                    std::is_copy_assignable<T>::value> {
>+#ifdef ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE
>+ private:
>+  static constexpr bool compliant =
>+      std::is_trivially_copy_assignable<T>::value ==
>+      is_trivially_copy_assignable::value;
>+  static_assert(compliant || std::is_trivially_copy_assignable<T>::value,
>+                "Not compliant with std::is_trivially_copy_assignable; "
>+                "Standard: false, Implementation: true");
>+  static_assert(compliant || !std::is_trivially_copy_assignable<T>::value,
>+                "Not compliant with std::is_trivially_copy_assignable; "
>+                "Standard: true, Implementation: false");
>+#endif  // ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE
>+};
>+
>+// -----------------------------------------------------------------------------
>+// C++14 "_t" trait aliases
>+// -----------------------------------------------------------------------------
>+
>+template <typename T>
>+using remove_cv_t = typename std::remove_cv<T>::type;
>+
>+template <typename T>
>+using remove_const_t = typename std::remove_const<T>::type;
>+
>+template <typename T>
>+using remove_volatile_t = typename std::remove_volatile<T>::type;
>+
>+template <typename T>
>+using add_cv_t = typename std::add_cv<T>::type;
>+
>+template <typename T>
>+using add_const_t = typename std::add_const<T>::type;
>+
>+template <typename T>
>+using add_volatile_t = typename std::add_volatile<T>::type;
>+
>+template <typename T>
>+using remove_reference_t = typename std::remove_reference<T>::type;
>+
>+template <typename T>
>+using add_lvalue_reference_t = typename std::add_lvalue_reference<T>::type;
>+
>+template <typename T>
>+using add_rvalue_reference_t = typename std::add_rvalue_reference<T>::type;
>+
>+template <typename T>
>+using remove_pointer_t = typename std::remove_pointer<T>::type;
>+
>+template <typename T>
>+using add_pointer_t = typename std::add_pointer<T>::type;
>+
>+template <typename T>
>+using make_signed_t = typename std::make_signed<T>::type;
>+
>+template <typename T>
>+using make_unsigned_t = typename std::make_unsigned<T>::type;
>+
>+template <typename T>
>+using remove_extent_t = typename std::remove_extent<T>::type;
>+
>+template <typename T>
>+using remove_all_extents_t = typename std::remove_all_extents<T>::type;
>+
>+template <size_t Len, size_t Align = type_traits_internal::
>+                          default_alignment_of_aligned_storage<Len>::value>
>+using aligned_storage_t = typename std::aligned_storage<Len, Align>::type;
>+
>+template <typename T>
>+using decay_t = typename std::decay<T>::type;
>+
>+template <bool B, typename T = void>
>+using enable_if_t = typename std::enable_if<B, T>::type;
>+
>+template <bool B, typename T, typename F>
>+using conditional_t = typename std::conditional<B, T, F>::type;
>+
>+template <typename... T>
>+using common_type_t = typename std::common_type<T...>::type;
>+
>+template <typename T>
>+using underlying_type_t = typename std::underlying_type<T>::type;
>+
>+template <typename T>
>+using result_of_t = typename std::result_of<T>::type;
>+
>+namespace type_traits_internal {
>+template <typename Key, typename = size_t>
>+struct IsHashable : std::false_type {};
>+
>+template <typename Key>
>+struct IsHashable<Key,
>+                  decltype(std::declval<std::hash<Key>>()(std::declval<Key>()))>
>+    : std::true_type {};
>+
>+template <typename Key>
>+struct IsHashEnabled
>+    : absl::conjunction<std::is_default_constructible<std::hash<Key>>,
>+                        std::is_copy_constructible<std::hash<Key>>,
>+                        std::is_destructible<std::hash<Key>>,
>+                        std::is_copy_assignable<std::hash<Key>>,
>+                        IsHashable<Key>> {};
>+}  // namespace type_traits_internal
>+
>+}  // namespace absl
>+
>+
>+#endif  // ABSL_META_TYPE_TRAITS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..81b4bd323977e5e3cd27660c50cced86ab225017
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/meta/type_traits_test.cc
>@@ -0,0 +1,880 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/meta/type_traits.h"
>+
>+#include <cstdint>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+using ::testing::StaticAssertTypeEq;
>+
>+template <class T, class U>
>+struct simple_pair {
>+  T first;
>+  U second;
>+};
>+
>+struct Dummy {};
>+
>+struct ReturnType {};
>+struct ConvertibleToReturnType {
>+  operator ReturnType() const;  // NOLINT
>+};
>+
>+// Unique types used as parameter types for testing the detection idiom.
>+struct StructA {};
>+struct StructB {};
>+struct StructC {};
>+
>+struct TypeWithBarFunction {
>+  template <class T,
>+            absl::enable_if_t<std::is_same<T&&, StructA&>::value, int> = 0>
>+  ReturnType bar(T&&, const StructB&, StructC&&) &&;  // NOLINT
>+};
>+
>+struct TypeWithBarFunctionAndConvertibleReturnType {
>+  template <class T,
>+            absl::enable_if_t<std::is_same<T&&, StructA&>::value, int> = 0>
>+  ConvertibleToReturnType bar(T&&, const StructB&, StructC&&) &&;  // NOLINT
>+};
>+
>+template <class Class, class... Ts>
>+using BarIsCallableImpl =
>+    decltype(std::declval<Class>().bar(std::declval<Ts>()...));
>+
>+template <class Class, class... T>
>+using BarIsCallable =
>+    absl::type_traits_internal::is_detected<BarIsCallableImpl, Class, T...>;
>+
>+template <class Class, class... T>
>+using BarIsCallableConv = absl::type_traits_internal::is_detected_convertible<
>+    ReturnType, BarIsCallableImpl, Class, T...>;
>+
>+// NOTE: Test of detail type_traits_internal::is_detected.
>+TEST(IsDetectedTest, BasicUsage) {
>+  EXPECT_TRUE((BarIsCallable<TypeWithBarFunction, StructA&, const StructB&,
>+                             StructC>::value));
>+  EXPECT_TRUE(
>+      (BarIsCallable<TypeWithBarFunction, StructA&, StructB&, StructC>::value));
>+  EXPECT_TRUE(
>+      (BarIsCallable<TypeWithBarFunction, StructA&, StructB, StructC>::value));
>+
>+  EXPECT_FALSE((BarIsCallable<int, StructA&, const StructB&, StructC>::value));
>+  EXPECT_FALSE((BarIsCallable<TypeWithBarFunction&, StructA&, const StructB&,
>+                              StructC>::value));
>+  EXPECT_FALSE((BarIsCallable<TypeWithBarFunction, StructA, const StructB&,
>+                              StructC>::value));
>+}
>+
>+// NOTE: Test of detail type_traits_internal::is_detected_convertible.
>+TEST(IsDetectedConvertibleTest, BasicUsage) {
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunction, StructA&, const StructB&,
>+                                 StructC>::value));
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunction, StructA&, StructB&,
>+                                 StructC>::value));
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunction, StructA&, StructB,
>+                                 StructC>::value));
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunctionAndConvertibleReturnType,
>+                                 StructA&, const StructB&, StructC>::value));
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunctionAndConvertibleReturnType,
>+                                 StructA&, StructB&, StructC>::value));
>+  EXPECT_TRUE((BarIsCallableConv<TypeWithBarFunctionAndConvertibleReturnType,
>+                                 StructA&, StructB, StructC>::value));
>+
>+  EXPECT_FALSE(
>+      (BarIsCallableConv<int, StructA&, const StructB&, StructC>::value));
>+  EXPECT_FALSE((BarIsCallableConv<TypeWithBarFunction&, StructA&,
>+                                  const StructB&, StructC>::value));
>+  EXPECT_FALSE((BarIsCallableConv<TypeWithBarFunction, StructA, const StructB&,
>+                                  StructC>::value));
>+  EXPECT_FALSE((BarIsCallableConv<TypeWithBarFunctionAndConvertibleReturnType&,
>+                                  StructA&, const StructB&, StructC>::value));
>+  EXPECT_FALSE((BarIsCallableConv<TypeWithBarFunctionAndConvertibleReturnType,
>+                                  StructA, const StructB&, StructC>::value));
>+}
>+
>+TEST(VoidTTest, BasicUsage) {
>+  StaticAssertTypeEq<void, absl::void_t<Dummy>>();
>+  StaticAssertTypeEq<void, absl::void_t<Dummy, Dummy, Dummy>>();
>+}
>+
>+TEST(ConjunctionTest, BasicBooleanLogic) {
>+  EXPECT_TRUE(absl::conjunction<>::value);
>+  EXPECT_TRUE(absl::conjunction<std::true_type>::value);
>+  EXPECT_TRUE((absl::conjunction<std::true_type, std::true_type>::value));
>+  EXPECT_FALSE((absl::conjunction<std::true_type, std::false_type>::value));
>+  EXPECT_FALSE((absl::conjunction<std::false_type, std::true_type>::value));
>+  EXPECT_FALSE((absl::conjunction<std::false_type, std::false_type>::value));
>+}
>+
>+struct MyTrueType {
>+  static constexpr bool value = true;
>+};
>+
>+struct MyFalseType {
>+  static constexpr bool value = false;
>+};
>+
>+TEST(ConjunctionTest, ShortCircuiting) {
>+  EXPECT_FALSE(
>+      (absl::conjunction<std::true_type, std::false_type, Dummy>::value));
>+  EXPECT_TRUE((std::is_base_of<MyFalseType,
>+                               absl::conjunction<std::true_type, MyFalseType,
>+                                                 std::false_type>>::value));
>+  EXPECT_TRUE(
>+      (std::is_base_of<MyTrueType,
>+                       absl::conjunction<std::true_type, MyTrueType>>::value));
>+}
>+
>+TEST(DisjunctionTest, BasicBooleanLogic) {
>+  EXPECT_FALSE(absl::disjunction<>::value);
>+  EXPECT_FALSE(absl::disjunction<std::false_type>::value);
>+  EXPECT_TRUE((absl::disjunction<std::true_type, std::true_type>::value));
>+  EXPECT_TRUE((absl::disjunction<std::true_type, std::false_type>::value));
>+  EXPECT_TRUE((absl::disjunction<std::false_type, std::true_type>::value));
>+  EXPECT_FALSE((absl::disjunction<std::false_type, std::false_type>::value));
>+}
>+
>+TEST(DisjunctionTest, ShortCircuiting) {
>+  EXPECT_TRUE(
>+      (absl::disjunction<std::false_type, std::true_type, Dummy>::value));
>+  EXPECT_TRUE((
>+      std::is_base_of<MyTrueType, absl::disjunction<std::false_type, MyTrueType,
>+                                                    std::true_type>>::value));
>+  EXPECT_TRUE((
>+      std::is_base_of<MyFalseType,
>+                      absl::disjunction<std::false_type, MyFalseType>>::value));
>+}
>+
>+TEST(NegationTest, BasicBooleanLogic) {
>+  EXPECT_FALSE(absl::negation<std::true_type>::value);
>+  EXPECT_FALSE(absl::negation<MyTrueType>::value);
>+  EXPECT_TRUE(absl::negation<std::false_type>::value);
>+  EXPECT_TRUE(absl::negation<MyFalseType>::value);
>+}
>+
>+// all member functions are trivial
>+class Trivial {
>+  int n_;
>+};
>+
>+struct TrivialDestructor {
>+  ~TrivialDestructor() = default;
>+};
>+
>+struct NontrivialDestructor {
>+  ~NontrivialDestructor() {}
>+};
>+
>+struct DeletedDestructor {
>+  ~DeletedDestructor() = delete;
>+};
>+
>+class TrivialDefaultCtor {
>+ public:
>+  TrivialDefaultCtor() = default;
>+  explicit TrivialDefaultCtor(int n) : n_(n) {}
>+
>+ private:
>+  int n_;
>+};
>+
>+class NontrivialDefaultCtor {
>+ public:
>+  NontrivialDefaultCtor() : n_(1) {}
>+
>+ private:
>+  int n_;
>+};
>+
>+class DeletedDefaultCtor {
>+ public:
>+  DeletedDefaultCtor() = delete;
>+  explicit DeletedDefaultCtor(int n) : n_(n) {}
>+
>+ private:
>+  int n_;
>+};
>+
>+class TrivialCopyCtor {
>+ public:
>+  explicit TrivialCopyCtor(int n) : n_(n) {}
>+  TrivialCopyCtor(const TrivialCopyCtor&) = default;
>+  TrivialCopyCtor& operator=(const TrivialCopyCtor& t) {
>+    n_ = t.n_;
>+    return *this;
>+  }
>+
>+ private:
>+  int n_;
>+};
>+
>+class NontrivialCopyCtor {
>+ public:
>+  explicit NontrivialCopyCtor(int n) : n_(n) {}
>+  NontrivialCopyCtor(const NontrivialCopyCtor& t) : n_(t.n_) {}
>+  NontrivialCopyCtor& operator=(const NontrivialCopyCtor&) = default;
>+
>+ private:
>+  int n_;
>+};
>+
>+class DeletedCopyCtor {
>+ public:
>+  explicit DeletedCopyCtor(int n) : n_(n) {}
>+  DeletedCopyCtor(const DeletedCopyCtor&) = delete;
>+  DeletedCopyCtor& operator=(const DeletedCopyCtor&) = default;
>+
>+ private:
>+  int n_;
>+};
>+
>+class TrivialCopyAssign {
>+ public:
>+  explicit TrivialCopyAssign(int n) : n_(n) {}
>+  TrivialCopyAssign(const TrivialCopyAssign& t) : n_(t.n_) {}
>+  TrivialCopyAssign& operator=(const TrivialCopyAssign& t) = default;
>+  ~TrivialCopyAssign() {}  // can have nontrivial destructor
>+ private:
>+  int n_;
>+};
>+
>+class NontrivialCopyAssign {
>+ public:
>+  explicit NontrivialCopyAssign(int n) : n_(n) {}
>+  NontrivialCopyAssign(const NontrivialCopyAssign&) = default;
>+  NontrivialCopyAssign& operator=(const NontrivialCopyAssign& t) {
>+    n_ = t.n_;
>+    return *this;
>+  }
>+
>+ private:
>+  int n_;
>+};
>+
>+class DeletedCopyAssign {
>+ public:
>+  explicit DeletedCopyAssign(int n) : n_(n) {}
>+  DeletedCopyAssign(const DeletedCopyAssign&) = default;
>+  DeletedCopyAssign& operator=(const DeletedCopyAssign&) = delete;
>+
>+ private:
>+  int n_;
>+};
>+
>+struct NonCopyable {
>+  NonCopyable() = default;
>+  NonCopyable(const NonCopyable&) = delete;
>+  NonCopyable& operator=(const NonCopyable&) = delete;
>+};
>+
>+class Base {
>+ public:
>+  virtual ~Base() {}
>+};
>+
>+// In GCC/Clang, std::is_trivially_constructible requires that the destructor is
>+// trivial. However, MSVC doesn't require that. This results in different
>+// behavior when checking is_trivially_constructible on any type with
>+// nontrivial destructor. Since absl::is_trivially_default_constructible and
>+// absl::is_trivially_copy_constructible both follows Clang/GCC's interpretation
>+// and check is_trivially_destructible, it results in inconsistency with
>+// std::is_trivially_xxx_constructible on MSVC. This macro is used to work
>+// around this issue in test. In practice, a trivially constructible type
>+// should also be trivially destructible.
>+// GCC bug 51452: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51452
>+// LWG issue 2116: http://cplusplus.github.io/LWG/lwg-active.html#2116
>+#ifndef _MSC_VER
>+#define ABSL_TRIVIALLY_CONSTRUCTIBLE_VERIFY_TRIVIALLY_DESTRUCTIBLE 1
>+#endif
>+
>+// Old versions of libc++, around Clang 3.5 to 3.6, consider deleted destructors
>+// as also being trivial. With the resolution of CWG 1928 and CWG 1734, this
>+// is no longer considered true and has thus been amended.
>+// Compiler Explorer: https://godbolt.org/g/zT59ZL
>+// CWG issue 1734: http://open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#1734
>+// CWG issue 1928: http://open-std.org/JTC1/SC22/WG21/docs/cwg_closed.html#1928
>+#if !defined(_LIBCPP_VERSION) || _LIBCPP_VERSION >= 3700
>+#define ABSL_TRIVIALLY_DESTRUCTIBLE_CONSIDER_DELETED_DESTRUCTOR_NOT_TRIVIAL 1
>+#endif
>+
>+// As of the moment, GCC versions >5.1 have a problem compiling for
>+// std::is_trivially_default_constructible<NontrivialDestructor[10]>, where
>+// NontrivialDestructor is a struct with a custom nontrivial destructor. Note
>+// that this problem only occurs for arrays of a known size, so something like
>+// std::is_trivially_default_constructible<NontrivialDestructor[]> does not
>+// have any problems.
>+// Compiler Explorer: https://godbolt.org/g/dXRbdK
>+// GCC bug 83689: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83689
>+#if defined(__clang__) || defined(_MSC_VER) || \
>+    (defined(__GNUC__) && __GNUC__ < 5)
>+#define ABSL_GCC_BUG_TRIVIALLY_CONSTRUCTIBLE_ON_ARRAY_OF_NONTRIVIAL 1
>+#endif
>+
>+TEST(TypeTraitsTest, TestTrivialDestructor) {
>+  // Verify that arithmetic types and pointers have trivial destructors.
>+  EXPECT_TRUE(absl::is_trivially_destructible<bool>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<char>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<unsigned char>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<signed char>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<wchar_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<int>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<unsigned int>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<int16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<uint16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<int64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<uint64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<float>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<double>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<long double>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<const std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<const Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<std::string**>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<Trivial**>::value);
>+
>+  // classes with destructors
>+  EXPECT_TRUE(absl::is_trivially_destructible<Trivial>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<TrivialDestructor>::value);
>+
>+  // Verify that types with a nontrivial or deleted destructor
>+  // are marked as such.
>+  EXPECT_FALSE(absl::is_trivially_destructible<NontrivialDestructor>::value);
>+#ifdef ABSL_TRIVIALLY_DESTRUCTIBLE_CONSIDER_DELETED_DESTRUCTOR_NOT_TRIVIAL
>+  EXPECT_FALSE(absl::is_trivially_destructible<DeletedDestructor>::value);
>+#endif
>+
>+  // simple_pair of such types is trivial
>+  EXPECT_TRUE((absl::is_trivially_destructible<simple_pair<int, int>>::value));
>+  EXPECT_TRUE((absl::is_trivially_destructible<
>+               simple_pair<Trivial, TrivialDestructor>>::value));
>+
>+  // Verify that types without trivial destructors are correctly marked as such.
>+  EXPECT_FALSE(absl::is_trivially_destructible<std::string>::value);
>+  EXPECT_FALSE(absl::is_trivially_destructible<std::vector<int>>::value);
>+
>+  // Verify that simple_pairs of types without trivial destructors
>+  // are not marked as trivial.
>+  EXPECT_FALSE((absl::is_trivially_destructible<
>+                simple_pair<int, std::string>>::value));
>+  EXPECT_FALSE((absl::is_trivially_destructible<
>+                simple_pair<std::string, int>>::value));
>+
>+  // array of such types is trivial
>+  using int10 = int[10];
>+  EXPECT_TRUE(absl::is_trivially_destructible<int10>::value);
>+  using Trivial10 = Trivial[10];
>+  EXPECT_TRUE(absl::is_trivially_destructible<Trivial10>::value);
>+  using TrivialDestructor10 = TrivialDestructor[10];
>+  EXPECT_TRUE(absl::is_trivially_destructible<TrivialDestructor10>::value);
>+
>+  // Conversely, the opposite also holds.
>+  using NontrivialDestructor10 = NontrivialDestructor[10];
>+  EXPECT_FALSE(absl::is_trivially_destructible<NontrivialDestructor10>::value);
>+}
>+
>+TEST(TypeTraitsTest, TestTrivialDefaultCtor) {
>+  // arithmetic types and pointers have trivial default constructors.
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<bool>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<char>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<unsigned char>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<signed char>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<wchar_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<int>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<unsigned int>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<int16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<uint16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<int64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<uint64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<float>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<double>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<long double>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<Trivial*>::value);
>+  EXPECT_TRUE(
>+      absl::is_trivially_default_constructible<const std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<const Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<std::string**>::value);
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<Trivial**>::value);
>+
>+  // types with compiler generated default ctors
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<Trivial>::value);
>+  EXPECT_TRUE(
>+      absl::is_trivially_default_constructible<TrivialDefaultCtor>::value);
>+
>+  // Verify that types without them are not.
>+  EXPECT_FALSE(
>+      absl::is_trivially_default_constructible<NontrivialDefaultCtor>::value);
>+  EXPECT_FALSE(
>+      absl::is_trivially_default_constructible<DeletedDefaultCtor>::value);
>+
>+#ifdef ABSL_TRIVIALLY_CONSTRUCTIBLE_VERIFY_TRIVIALLY_DESTRUCTIBLE
>+  // types with nontrivial destructor are nontrivial
>+  EXPECT_FALSE(
>+      absl::is_trivially_default_constructible<NontrivialDestructor>::value);
>+#endif
>+
>+  // types with vtables
>+  EXPECT_FALSE(absl::is_trivially_default_constructible<Base>::value);
>+
>+  // Verify that simple_pair has trivial constructors where applicable.
>+  EXPECT_TRUE((absl::is_trivially_default_constructible<
>+               simple_pair<int, char*>>::value));
>+  EXPECT_TRUE((absl::is_trivially_default_constructible<
>+               simple_pair<int, Trivial>>::value));
>+  EXPECT_TRUE((absl::is_trivially_default_constructible<
>+               simple_pair<int, TrivialDefaultCtor>>::value));
>+
>+  // Verify that types without trivial constructors are
>+  // correctly marked as such.
>+  EXPECT_FALSE(absl::is_trivially_default_constructible<std::string>::value);
>+  EXPECT_FALSE(
>+      absl::is_trivially_default_constructible<std::vector<int>>::value);
>+
>+  // Verify that simple_pairs of types without trivial constructors
>+  // are not marked as trivial.
>+  EXPECT_FALSE((absl::is_trivially_default_constructible<
>+                simple_pair<int, std::string>>::value));
>+  EXPECT_FALSE((absl::is_trivially_default_constructible<
>+                simple_pair<std::string, int>>::value));
>+
>+  // Verify that arrays of such types are trivially default constructible
>+  using int10 = int[10];
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<int10>::value);
>+  using Trivial10 = Trivial[10];
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<Trivial10>::value);
>+  using TrivialDefaultCtor10 = TrivialDefaultCtor[10];
>+  EXPECT_TRUE(
>+      absl::is_trivially_default_constructible<TrivialDefaultCtor10>::value);
>+
>+  // Conversely, the opposite also holds.
>+#ifdef ABSL_GCC_BUG_TRIVIALLY_CONSTRUCTIBLE_ON_ARRAY_OF_NONTRIVIAL
>+  using NontrivialDefaultCtor10 = NontrivialDefaultCtor[10];
>+  EXPECT_FALSE(
>+      absl::is_trivially_default_constructible<NontrivialDefaultCtor10>::value);
>+#endif
>+}
>+
>+TEST(TypeTraitsTest, TestTrivialCopyCtor) {
>+  // Verify that arithmetic types and pointers have trivial copy
>+  // constructors.
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<bool>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<unsigned char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<signed char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<wchar_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<int>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<unsigned int>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<int16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<uint16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<int64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<uint64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<float>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<double>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<long double>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<const std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<const Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<std::string**>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<Trivial**>::value);
>+
>+  // types with compiler generated copy ctors
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<Trivial>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<TrivialCopyCtor>::value);
>+
>+  // Verify that types without them (i.e. nontrivial or deleted) are not.
>+  EXPECT_FALSE(
>+      absl::is_trivially_copy_constructible<NontrivialCopyCtor>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_constructible<DeletedCopyCtor>::value);
>+  EXPECT_FALSE(
>+      absl::is_trivially_copy_constructible<NonCopyable>::value);
>+
>+#ifdef ABSL_TRIVIALLY_CONSTRUCTIBLE_VERIFY_TRIVIALLY_DESTRUCTIBLE
>+  // type with nontrivial destructor are nontrivial copy construbtible
>+  EXPECT_FALSE(
>+      absl::is_trivially_copy_constructible<NontrivialDestructor>::value);
>+#endif
>+
>+  // types with vtables
>+  EXPECT_FALSE(absl::is_trivially_copy_constructible<Base>::value);
>+
>+  // Verify that simple_pair of such types is trivially copy constructible
>+  EXPECT_TRUE(
>+      (absl::is_trivially_copy_constructible<simple_pair<int, char*>>::value));
>+  EXPECT_TRUE((
>+      absl::is_trivially_copy_constructible<simple_pair<int, Trivial>>::value));
>+  EXPECT_TRUE((absl::is_trivially_copy_constructible<
>+               simple_pair<int, TrivialCopyCtor>>::value));
>+
>+  // Verify that types without trivial copy constructors are
>+  // correctly marked as such.
>+  EXPECT_FALSE(absl::is_trivially_copy_constructible<std::string>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_constructible<std::vector<int>>::value);
>+
>+  // Verify that simple_pairs of types without trivial copy constructors
>+  // are not marked as trivial.
>+  EXPECT_FALSE((absl::is_trivially_copy_constructible<
>+                simple_pair<int, std::string>>::value));
>+  EXPECT_FALSE((absl::is_trivially_copy_constructible<
>+                simple_pair<std::string, int>>::value));
>+
>+  // Verify that arrays are not
>+  using int10 = int[10];
>+  EXPECT_FALSE(absl::is_trivially_copy_constructible<int10>::value);
>+}
>+
>+TEST(TypeTraitsTest, TestTrivialCopyAssign) {
>+  // Verify that arithmetic types and pointers have trivial copy
>+  // assignment operators.
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<bool>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<unsigned char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<signed char>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<wchar_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<int>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<unsigned int>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<int16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<uint16_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<int64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<uint64_t>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<float>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<double>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<long double>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<const std::string*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<const Trivial*>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<std::string**>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial**>::value);
>+
>+  // const qualified types are not assignable
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<const int>::value);
>+
>+  // types with compiler generated copy assignment
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<TrivialCopyAssign>::value);
>+
>+  // Verify that types without them (i.e. nontrivial or deleted) are not.
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<NontrivialCopyAssign>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<DeletedCopyAssign>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<NonCopyable>::value);
>+
>+  // types with vtables
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<Base>::value);
>+
>+  // Verify that simple_pair is trivially assignable
>+  EXPECT_TRUE(
>+      (absl::is_trivially_copy_assignable<simple_pair<int, char*>>::value));
>+  EXPECT_TRUE(
>+      (absl::is_trivially_copy_assignable<simple_pair<int, Trivial>>::value));
>+  EXPECT_TRUE((absl::is_trivially_copy_assignable<
>+               simple_pair<int, TrivialCopyAssign>>::value));
>+
>+  // Verify that types not trivially copy assignable are
>+  // correctly marked as such.
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<std::string>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<std::vector<int>>::value);
>+
>+  // Verify that simple_pairs of types not trivially copy assignable
>+  // are not marked as trivial.
>+  EXPECT_FALSE((absl::is_trivially_copy_assignable<
>+                simple_pair<int, std::string>>::value));
>+  EXPECT_FALSE((absl::is_trivially_copy_assignable<
>+                simple_pair<std::string, int>>::value));
>+
>+  // Verify that arrays are not trivially copy assignable
>+  using int10 = int[10];
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<int10>::value);
>+
>+  // Verify that references are handled correctly
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial&&>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial&>::value);
>+}
>+
>+#define ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(trait_name, ...)          \
>+  EXPECT_TRUE((std::is_same<typename std::trait_name<__VA_ARGS__>::type, \
>+                            absl::trait_name##_t<__VA_ARGS__>>::value))
>+
>+TEST(TypeTraitsTest, TestRemoveCVAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_cv, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_cv, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_cv, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_cv, const volatile int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_const, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_const, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_const, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_const, const volatile int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_volatile, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_volatile, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_volatile, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_volatile, const volatile int);
>+}
>+
>+TEST(TypeTraitsTest, TestAddCVAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_cv, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_cv, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_cv, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_cv, const volatile int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_const, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_const, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_const, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_const, const volatile int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_volatile, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_volatile, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_volatile, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_volatile, const volatile int);
>+}
>+
>+TEST(TypeTraitsTest, TestReferenceAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, volatile int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, int&&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_reference, volatile int&&);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, volatile int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, int&&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_lvalue_reference, volatile int&&);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, volatile int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, int&&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_rvalue_reference, volatile int&&);
>+}
>+
>+TEST(TypeTraitsTest, TestPointerAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_pointer, int*);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_pointer, volatile int*);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_pointer, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(add_pointer, volatile int);
>+}
>+
>+TEST(TypeTraitsTest, TestSignednessAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_signed, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_signed, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_signed, unsigned);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_signed, volatile unsigned);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_unsigned, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_unsigned, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_unsigned, unsigned);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(make_unsigned, volatile unsigned);
>+}
>+
>+TEST(TypeTraitsTest, TestExtentAliases) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_extent, int[]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_extent, int[1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_extent, int[1][1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_extent, int[][1]);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_all_extents, int[]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_all_extents, int[1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_all_extents, int[1][1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(remove_all_extents, int[][1]);
>+}
>+
>+TEST(TypeTraitsTest, TestAlignedStorageAlias) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 1);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 2);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 3);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 4);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 5);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 6);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 7);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 8);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 9);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 10);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 11);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 12);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 13);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 14);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 15);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 16);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 17);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 18);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 19);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 20);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 21);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 22);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 23);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 24);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 25);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 26);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 27);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 28);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 29);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 30);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 31);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 32);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 33);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 1, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 2, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 3, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 4, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 5, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 6, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 7, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 8, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 9, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 10, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 11, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 12, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 13, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 14, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 15, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 16, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 17, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 18, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 19, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 20, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 21, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 22, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 23, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 24, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 25, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 26, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 27, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 28, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 29, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 30, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 31, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 32, 128);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(aligned_storage, 33, 128);
>+}
>+
>+TEST(TypeTraitsTest, TestDecay) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, volatile int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const volatile int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, volatile int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const volatile int&);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, volatile int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, const volatile int&);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int[1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int[1][1]);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int[][1]);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int());
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int(float));  // NOLINT
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(decay, int(char, ...));  // NOLINT
>+}
>+
>+struct TypeA {};
>+struct TypeB {};
>+struct TypeC {};
>+struct TypeD {};
>+
>+template <typename T>
>+struct Wrap {};
>+
>+enum class TypeEnum { A, B, C, D };
>+
>+struct GetTypeT {
>+  template <typename T,
>+            absl::enable_if_t<std::is_same<T, TypeA>::value, int> = 0>
>+  TypeEnum operator()(Wrap<T>) const {
>+    return TypeEnum::A;
>+  }
>+
>+  template <typename T,
>+            absl::enable_if_t<std::is_same<T, TypeB>::value, int> = 0>
>+  TypeEnum operator()(Wrap<T>) const {
>+    return TypeEnum::B;
>+  }
>+
>+  template <typename T,
>+            absl::enable_if_t<std::is_same<T, TypeC>::value, int> = 0>
>+  TypeEnum operator()(Wrap<T>) const {
>+    return TypeEnum::C;
>+  }
>+
>+  // NOTE: TypeD is intentionally not handled
>+} constexpr GetType = {};
>+
>+TEST(TypeTraitsTest, TestEnableIf) {
>+  EXPECT_EQ(TypeEnum::A, GetType(Wrap<TypeA>()));
>+  EXPECT_EQ(TypeEnum::B, GetType(Wrap<TypeB>()));
>+  EXPECT_EQ(TypeEnum::C, GetType(Wrap<TypeC>()));
>+}
>+
>+TEST(TypeTraitsTest, TestConditional) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(conditional, true, int, char);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(conditional, false, int, char);
>+}
>+
>+// TODO(calabrese) Check with specialized std::common_type
>+TEST(TypeTraitsTest, TestCommonType) {
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int, char);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int, char, int);
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int, char&);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(common_type, int, char, int&);
>+}
>+
>+TEST(TypeTraitsTest, TestUnderlyingType) {
>+  enum class enum_char : char {};
>+  enum class enum_long_long : long long {};  // NOLINT(runtime/int)
>+
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(underlying_type, enum_char);
>+  ABSL_INTERNAL_EXPECT_ALIAS_EQUIVALENCE(underlying_type, enum_long_long);
>+}
>+
>+struct GetTypeExtT {
>+  template <typename T>
>+  absl::result_of_t<const GetTypeT&(T)> operator()(T&& arg) const {
>+    return GetType(std::forward<T>(arg));
>+  }
>+
>+  TypeEnum operator()(Wrap<TypeD>) const { return TypeEnum::D; }
>+} constexpr GetTypeExt = {};
>+
>+TEST(TypeTraitsTest, TestResultOf) {
>+  EXPECT_EQ(TypeEnum::A, GetTypeExt(Wrap<TypeA>()));
>+  EXPECT_EQ(TypeEnum::B, GetTypeExt(Wrap<TypeB>()));
>+  EXPECT_EQ(TypeEnum::C, GetTypeExt(Wrap<TypeC>()));
>+  EXPECT_EQ(TypeEnum::D, GetTypeExt(Wrap<TypeD>()));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..f49571ebb3e1042434151a2237127a99df1ad301
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.bazel
>@@ -0,0 +1,67 @@
>+# Copyright 2018 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "int128",
>+    srcs = [
>+        "int128.cc",
>+        "int128_have_intrinsic.inc",
>+        "int128_no_intrinsic.inc",
>+    ],
>+    hdrs = ["int128.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "int128_test",
>+    size = "small",
>+    srcs = [
>+        "int128_stream_test.cc",
>+        "int128_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":int128",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "int128_benchmark",
>+    srcs = ["int128_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":int128",
>+        "//absl/base:config",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..fdfa2e271ffffdf33d6c7307fe54e995f4c9789b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/BUILD.gn
>@@ -0,0 +1,36 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("int128") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "int128.cc",
>+    "int128_have_intrinsic.inc",
>+    "int128_no_intrinsic.inc",
>+  ]
>+  public = [
>+    "int128.h",
>+  ]
>+  deps = [
>+    "../base:config",
>+    "../base:core_headers",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..3360b2ee726e1a198f59c3466f21ce5a3bf08b90
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/CMakeLists.txt
>@@ -0,0 +1,62 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND NUMERIC_PUBLIC_HEADERS
>+  "int128.h"
>+)
>+
>+
>+# library 128
>+list(APPEND INT128_SRC
>+  "int128.cc"
>+  ${NUMERIC_PUBLIC_HEADERS}
>+)
>+absl_library(
>+  TARGET
>+    absl_int128
>+  SOURCES
>+    ${INT128_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INT128_PUBLIC_LIBRARIES}
>+  EXPORT_NAME
>+    int128
>+)
>+
>+
>+absl_header_library(
>+  TARGET
>+    absl_numeric
>+  PUBLIC_LIBRARIES
>+    absl::int128
>+  EXPORT_NAME
>+    numeric
>+)
>+
>+# test int128_test
>+set(INT128_TEST_SRC "int128_test.cc")
>+set(INT128_TEST_PUBLIC_LIBRARIES absl::numeric absl::base)
>+
>+absl_test(
>+  TARGET
>+    int128_test
>+  SOURCES
>+    ${INT128_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${INT128_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cd79534f3bfd9f650ed158f35b5d86c74f178cd3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.cc
>@@ -0,0 +1,251 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/numeric/int128.h"
>+
>+#include <stddef.h>
>+#include <cassert>
>+#include <iomanip>
>+#include <iostream>  // NOLINT(readability/streams)
>+#include <sstream>
>+#include <string>
>+#include <type_traits>
>+
>+namespace absl {
>+
>+const uint128 kuint128max = MakeUint128(std::numeric_limits<uint64_t>::max(),
>+                                        std::numeric_limits<uint64_t>::max());
>+
>+namespace {
>+
>+// Returns the 0-based position of the last set bit (i.e., most significant bit)
>+// in the given uint64_t. The argument may not be 0.
>+//
>+// For example:
>+//   Given: 5 (decimal) == 101 (binary)
>+//   Returns: 2
>+#define STEP(T, n, pos, sh)                   \
>+  do {                                        \
>+    if ((n) >= (static_cast<T>(1) << (sh))) { \
>+      (n) = (n) >> (sh);                      \
>+      (pos) |= (sh);                          \
>+    }                                         \
>+  } while (0)
>+static inline int Fls64(uint64_t n) {
>+  assert(n != 0);
>+  int pos = 0;
>+  STEP(uint64_t, n, pos, 0x20);
>+  uint32_t n32 = static_cast<uint32_t>(n);
>+  STEP(uint32_t, n32, pos, 0x10);
>+  STEP(uint32_t, n32, pos, 0x08);
>+  STEP(uint32_t, n32, pos, 0x04);
>+  return pos + ((uint64_t{0x3333333322221100} >> (n32 << 2)) & 0x3);
>+}
>+#undef STEP
>+
>+// Like Fls64() above, but returns the 0-based position of the last set bit
>+// (i.e., most significant bit) in the given uint128. The argument may not be 0.
>+static inline int Fls128(uint128 n) {
>+  if (uint64_t hi = Uint128High64(n)) {
>+    return Fls64(hi) + 64;
>+  }
>+  return Fls64(Uint128Low64(n));
>+}
>+
>+// Long division/modulo for uint128 implemented using the shift-subtract
>+// division algorithm adapted from:
>+// http://stackoverflow.com/questions/5386377/division-without-using
>+void DivModImpl(uint128 dividend, uint128 divisor, uint128* quotient_ret,
>+                uint128* remainder_ret) {
>+  assert(divisor != 0);
>+
>+  if (divisor > dividend) {
>+    *quotient_ret = 0;
>+    *remainder_ret = dividend;
>+    return;
>+  }
>+
>+  if (divisor == dividend) {
>+    *quotient_ret = 1;
>+    *remainder_ret = 0;
>+    return;
>+  }
>+
>+  uint128 denominator = divisor;
>+  uint128 quotient = 0;
>+
>+  // Left aligns the MSB of the denominator and the dividend.
>+  const int shift = Fls128(dividend) - Fls128(denominator);
>+  denominator <<= shift;
>+
>+  // Uses shift-subtract algorithm to divide dividend by denominator. The
>+  // remainder will be left in dividend.
>+  for (int i = 0; i <= shift; ++i) {
>+    quotient <<= 1;
>+    if (dividend >= denominator) {
>+      dividend -= denominator;
>+      quotient |= 1;
>+    }
>+    denominator >>= 1;
>+  }
>+
>+  *quotient_ret = quotient;
>+  *remainder_ret = dividend;
>+}
>+
>+template <typename T>
>+uint128 MakeUint128FromFloat(T v) {
>+  static_assert(std::is_floating_point<T>::value, "");
>+
>+  // Rounding behavior is towards zero, same as for built-in types.
>+
>+  // Undefined behavior if v is NaN or cannot fit into uint128.
>+  assert(std::isfinite(v) && v > -1 &&
>+         (std::numeric_limits<T>::max_exponent <= 128 ||
>+          v < std::ldexp(static_cast<T>(1), 128)));
>+
>+  if (v >= std::ldexp(static_cast<T>(1), 64)) {
>+    uint64_t hi = static_cast<uint64_t>(std::ldexp(v, -64));
>+    uint64_t lo = static_cast<uint64_t>(v - std::ldexp(static_cast<T>(hi), 64));
>+    return MakeUint128(hi, lo);
>+  }
>+
>+  return MakeUint128(0, static_cast<uint64_t>(v));
>+}
>+}  // namespace
>+
>+uint128::uint128(float v) : uint128(MakeUint128FromFloat(v)) {}
>+uint128::uint128(double v) : uint128(MakeUint128FromFloat(v)) {}
>+uint128::uint128(long double v) : uint128(MakeUint128FromFloat(v)) {}
>+
>+uint128 operator/(uint128 lhs, uint128 rhs) {
>+#if defined(ABSL_HAVE_INTRINSIC_INT128)
>+  return static_cast<unsigned __int128>(lhs) /
>+         static_cast<unsigned __int128>(rhs);
>+#else  // ABSL_HAVE_INTRINSIC_INT128
>+  uint128 quotient = 0;
>+  uint128 remainder = 0;
>+  DivModImpl(lhs, rhs, &quotient, &remainder);
>+  return quotient;
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+}
>+uint128 operator%(uint128 lhs, uint128 rhs) {
>+#if defined(ABSL_HAVE_INTRINSIC_INT128)
>+  return static_cast<unsigned __int128>(lhs) %
>+         static_cast<unsigned __int128>(rhs);
>+#else  // ABSL_HAVE_INTRINSIC_INT128
>+  uint128 quotient = 0;
>+  uint128 remainder = 0;
>+  DivModImpl(lhs, rhs, &quotient, &remainder);
>+  return remainder;
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+}
>+
>+namespace {
>+
>+std::string Uint128ToFormattedString(uint128 v, std::ios_base::fmtflags flags) {
>+  // Select a divisor which is the largest power of the base < 2^64.
>+  uint128 div;
>+  int div_base_log;
>+  switch (flags & std::ios::basefield) {
>+    case std::ios::hex:
>+      div = 0x1000000000000000;  // 16^15
>+      div_base_log = 15;
>+      break;
>+    case std::ios::oct:
>+      div = 01000000000000000000000;  // 8^21
>+      div_base_log = 21;
>+      break;
>+    default:  // std::ios::dec
>+      div = 10000000000000000000u;  // 10^19
>+      div_base_log = 19;
>+      break;
>+  }
>+
>+  // Now piece together the uint128 representation from three chunks of the
>+  // original value, each less than "div" and therefore representable as a
>+  // uint64_t.
>+  std::ostringstream os;
>+  std::ios_base::fmtflags copy_mask =
>+      std::ios::basefield | std::ios::showbase | std::ios::uppercase;
>+  os.setf(flags & copy_mask, copy_mask);
>+  uint128 high = v;
>+  uint128 low;
>+  DivModImpl(high, div, &high, &low);
>+  uint128 mid;
>+  DivModImpl(high, div, &high, &mid);
>+  if (Uint128Low64(high) != 0) {
>+    os << Uint128Low64(high);
>+    os << std::noshowbase << std::setfill('0') << std::setw(div_base_log);
>+    os << Uint128Low64(mid);
>+    os << std::setw(div_base_log);
>+  } else if (Uint128Low64(mid) != 0) {
>+    os << Uint128Low64(mid);
>+    os << std::noshowbase << std::setfill('0') << std::setw(div_base_log);
>+  }
>+  os << Uint128Low64(low);
>+  return os.str();
>+}
>+
>+}  // namespace
>+
>+std::ostream& operator<<(std::ostream& os, uint128 v) {
>+  std::ios_base::fmtflags flags = os.flags();
>+  std::string rep = Uint128ToFormattedString(v, flags);
>+
>+  // Add the requisite padding.
>+  std::streamsize width = os.width(0);
>+  if (static_cast<size_t>(width) > rep.size()) {
>+    std::ios::fmtflags adjustfield = flags & std::ios::adjustfield;
>+    if (adjustfield == std::ios::left) {
>+      rep.append(width - rep.size(), os.fill());
>+    } else if (adjustfield == std::ios::internal &&
>+               (flags & std::ios::showbase) &&
>+               (flags & std::ios::basefield) == std::ios::hex && v != 0) {
>+      rep.insert(2, width - rep.size(), os.fill());
>+    } else {
>+      rep.insert(0, width - rep.size(), os.fill());
>+    }
>+  }
>+
>+  return os << rep;
>+}
>+
>+}  // namespace absl
>+
>+namespace std {
>+constexpr bool numeric_limits<absl::uint128>::is_specialized;
>+constexpr bool numeric_limits<absl::uint128>::is_signed;
>+constexpr bool numeric_limits<absl::uint128>::is_integer;
>+constexpr bool numeric_limits<absl::uint128>::is_exact;
>+constexpr bool numeric_limits<absl::uint128>::has_infinity;
>+constexpr bool numeric_limits<absl::uint128>::has_quiet_NaN;
>+constexpr bool numeric_limits<absl::uint128>::has_signaling_NaN;
>+constexpr float_denorm_style numeric_limits<absl::uint128>::has_denorm;
>+constexpr bool numeric_limits<absl::uint128>::has_denorm_loss;
>+constexpr float_round_style numeric_limits<absl::uint128>::round_style;
>+constexpr bool numeric_limits<absl::uint128>::is_iec559;
>+constexpr bool numeric_limits<absl::uint128>::is_bounded;
>+constexpr bool numeric_limits<absl::uint128>::is_modulo;
>+constexpr int numeric_limits<absl::uint128>::digits;
>+constexpr int numeric_limits<absl::uint128>::digits10;
>+constexpr int numeric_limits<absl::uint128>::max_digits10;
>+constexpr int numeric_limits<absl::uint128>::radix;
>+constexpr int numeric_limits<absl::uint128>::min_exponent;
>+constexpr int numeric_limits<absl::uint128>::min_exponent10;
>+constexpr int numeric_limits<absl::uint128>::max_exponent;
>+constexpr int numeric_limits<absl::uint128>::max_exponent10;
>+constexpr bool numeric_limits<absl::uint128>::traps;
>+constexpr bool numeric_limits<absl::uint128>::tinyness_before;
>+}  // namespace std
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2d131b8bda1c348d91743e7c42d38a57968c330b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128.h
>@@ -0,0 +1,705 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: int128.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines 128-bit integer types.
>+//
>+// Currently, this file defines `uint128`, an unsigned 128-bit integer; a signed
>+// 128-bit integer is forthcoming.
>+
>+#ifndef ABSL_NUMERIC_INT128_H_
>+#define ABSL_NUMERIC_INT128_H_
>+
>+#include <cassert>
>+#include <cmath>
>+#include <cstdint>
>+#include <cstring>
>+#include <iosfwd>
>+#include <limits>
>+#include <utility>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+
>+
>+// uint128
>+//
>+// An unsigned 128-bit integer type. The API is meant to mimic an intrinsic type
>+// as closely as is practical, including exhibiting undefined behavior in
>+// analogous cases (e.g. division by zero). This type is intended to be a
>+// drop-in replacement once C++ supports an intrinsic `uint128_t` type; when
>+// that occurs, existing well-behaved uses of `uint128` will continue to work
>+// using that new type.
>+//
>+// Note: code written with this type will continue to compile once `uint128_t`
>+// is introduced, provided the replacement helper functions
>+// `Uint128(Low|High)64()` and `MakeUint128()` are made.
>+//
>+// A `uint128` supports the following:
>+//
>+//   * Implicit construction from integral types
>+//   * Explicit conversion to integral types
>+//
>+// Additionally, if your compiler supports `__int128`, `uint128` is
>+// interoperable with that type. (Abseil checks for this compatibility through
>+// the `ABSL_HAVE_INTRINSIC_INT128` macro.)
>+//
>+// However, a `uint128` differs from intrinsic integral types in the following
>+// ways:
>+//
>+//   * Errors on implicit conversions that do not preserve value (such as
>+//     loss of precision when converting to float values).
>+//   * Requires explicit construction from and conversion to floating point
>+//     types.
>+//   * Conversion to integral types requires an explicit static_cast() to
>+//     mimic use of the `-Wnarrowing` compiler flag.
>+//   * The alignment requirement of `uint128` may differ from that of an
>+//     intrinsic 128-bit integer type depending on platform and build
>+//     configuration.
>+//
>+// Example:
>+//
>+//     float y = absl::Uint128Max();  // Error. uint128 cannot be implicitly
>+//                                    // converted to float.
>+//
>+//     absl::uint128 v;
>+//     uint64_t i = v;                         // Error
>+//     uint64_t i = static_cast<uint64_t>(v);  // OK
>+//
>+class
>+#if defined(ABSL_HAVE_INTRINSIC_INT128)
>+    alignas(unsigned __int128)
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+        uint128 {
>+ public:
>+  uint128() = default;
>+
>+  // Constructors from arithmetic types
>+  constexpr uint128(int v);                 // NOLINT(runtime/explicit)
>+  constexpr uint128(unsigned int v);        // NOLINT(runtime/explicit)
>+  constexpr uint128(long v);                // NOLINT(runtime/int)
>+  constexpr uint128(unsigned long v);       // NOLINT(runtime/int)
>+  constexpr uint128(long long v);           // NOLINT(runtime/int)
>+  constexpr uint128(unsigned long long v);  // NOLINT(runtime/int)
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+  constexpr uint128(__int128 v);           // NOLINT(runtime/explicit)
>+  constexpr uint128(unsigned __int128 v);  // NOLINT(runtime/explicit)
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+  explicit uint128(float v);
>+  explicit uint128(double v);
>+  explicit uint128(long double v);
>+
>+  // Assignment operators from arithmetic types
>+  uint128& operator=(int v);
>+  uint128& operator=(unsigned int v);
>+  uint128& operator=(long v);                // NOLINT(runtime/int)
>+  uint128& operator=(unsigned long v);       // NOLINT(runtime/int)
>+  uint128& operator=(long long v);           // NOLINT(runtime/int)
>+  uint128& operator=(unsigned long long v);  // NOLINT(runtime/int)
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+  uint128& operator=(__int128 v);
>+  uint128& operator=(unsigned __int128 v);
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+  // Conversion operators to other arithmetic types
>+  constexpr explicit operator bool() const;
>+  constexpr explicit operator char() const;
>+  constexpr explicit operator signed char() const;
>+  constexpr explicit operator unsigned char() const;
>+  constexpr explicit operator char16_t() const;
>+  constexpr explicit operator char32_t() const;
>+  constexpr explicit operator wchar_t() const;
>+  constexpr explicit operator short() const;  // NOLINT(runtime/int)
>+  // NOLINTNEXTLINE(runtime/int)
>+  constexpr explicit operator unsigned short() const;
>+  constexpr explicit operator int() const;
>+  constexpr explicit operator unsigned int() const;
>+  constexpr explicit operator long() const;  // NOLINT(runtime/int)
>+  // NOLINTNEXTLINE(runtime/int)
>+  constexpr explicit operator unsigned long() const;
>+  // NOLINTNEXTLINE(runtime/int)
>+  constexpr explicit operator long long() const;
>+  // NOLINTNEXTLINE(runtime/int)
>+  constexpr explicit operator unsigned long long() const;
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+  constexpr explicit operator __int128() const;
>+  constexpr explicit operator unsigned __int128() const;
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+  explicit operator float() const;
>+  explicit operator double() const;
>+  explicit operator long double() const;
>+
>+  // Trivial copy constructor, assignment operator and destructor.
>+
>+  // Arithmetic operators.
>+  uint128& operator+=(uint128 other);
>+  uint128& operator-=(uint128 other);
>+  uint128& operator*=(uint128 other);
>+  // Long division/modulo for uint128.
>+  uint128& operator/=(uint128 other);
>+  uint128& operator%=(uint128 other);
>+  uint128 operator++(int);
>+  uint128 operator--(int);
>+  uint128& operator<<=(int);
>+  uint128& operator>>=(int);
>+  uint128& operator&=(uint128 other);
>+  uint128& operator|=(uint128 other);
>+  uint128& operator^=(uint128 other);
>+  uint128& operator++();
>+  uint128& operator--();
>+
>+  // Uint128Low64()
>+  //
>+  // Returns the lower 64-bit value of a `uint128` value.
>+  friend constexpr uint64_t Uint128Low64(uint128 v);
>+
>+  // Uint128High64()
>+  //
>+  // Returns the higher 64-bit value of a `uint128` value.
>+  friend constexpr uint64_t Uint128High64(uint128 v);
>+
>+  // MakeUInt128()
>+  //
>+  // Constructs a `uint128` numeric value from two 64-bit unsigned integers.
>+  // Note that this factory function is the only way to construct a `uint128`
>+  // from integer values greater than 2^64.
>+  //
>+  // Example:
>+  //
>+  //   absl::uint128 big = absl::MakeUint128(1, 0);
>+  friend constexpr uint128 MakeUint128(uint64_t high, uint64_t low);
>+
>+  // Uint128Max()
>+  //
>+  // Returns the highest value for a 128-bit unsigned integer.
>+  friend constexpr uint128 Uint128Max();
>+
>+ private:
>+  constexpr uint128(uint64_t high, uint64_t low);
>+
>+  // TODO(strel) Update implementation to use __int128 once all users of
>+  // uint128 are fixed to not depend on alignof(uint128) == 8. Also add
>+  // alignas(16) to class definition to keep alignment consistent across
>+  // platforms.
>+#if defined(ABSL_IS_LITTLE_ENDIAN)
>+  uint64_t lo_;
>+  uint64_t hi_;
>+#elif defined(ABSL_IS_BIG_ENDIAN)
>+  uint64_t hi_;
>+  uint64_t lo_;
>+#else  // byte order
>+#error "Unsupported byte order: must be little-endian or big-endian."
>+#endif  // byte order
>+};
>+
>+// Prefer to use the constexpr `Uint128Max()`.
>+//
>+// TODO(absl-team) deprecate kuint128max once migration tool is released.
>+extern const uint128 kuint128max;
>+
>+// allow uint128 to be logged
>+std::ostream& operator<<(std::ostream& os, uint128 v);
>+
>+// TODO(strel) add operator>>(std::istream&, uint128)
>+
>+constexpr uint128 Uint128Max() {
>+  return uint128(std::numeric_limits<uint64_t>::max(),
>+                 std::numeric_limits<uint64_t>::max());
>+}
>+
>+}  // namespace absl
>+
>+// Specialized numeric_limits for uint128.
>+namespace std {
>+template <>
>+class numeric_limits<absl::uint128> {
>+ public:
>+  static constexpr bool is_specialized = true;
>+  static constexpr bool is_signed = false;
>+  static constexpr bool is_integer = true;
>+  static constexpr bool is_exact = true;
>+  static constexpr bool has_infinity = false;
>+  static constexpr bool has_quiet_NaN = false;
>+  static constexpr bool has_signaling_NaN = false;
>+  static constexpr float_denorm_style has_denorm = denorm_absent;
>+  static constexpr bool has_denorm_loss = false;
>+  static constexpr float_round_style round_style = round_toward_zero;
>+  static constexpr bool is_iec559 = false;
>+  static constexpr bool is_bounded = true;
>+  static constexpr bool is_modulo = true;
>+  static constexpr int digits = 128;
>+  static constexpr int digits10 = 38;
>+  static constexpr int max_digits10 = 0;
>+  static constexpr int radix = 2;
>+  static constexpr int min_exponent = 0;
>+  static constexpr int min_exponent10 = 0;
>+  static constexpr int max_exponent = 0;
>+  static constexpr int max_exponent10 = 0;
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+  static constexpr bool traps = numeric_limits<unsigned __int128>::traps;
>+#else   // ABSL_HAVE_INTRINSIC_INT128
>+  static constexpr bool traps = numeric_limits<uint64_t>::traps;
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+  static constexpr bool tinyness_before = false;
>+
>+  static constexpr absl::uint128 min() { return 0; }
>+  static constexpr absl::uint128 lowest() { return 0; }
>+  static constexpr absl::uint128 max() { return absl::Uint128Max(); }
>+  static constexpr absl::uint128 epsilon() { return 0; }
>+  static constexpr absl::uint128 round_error() { return 0; }
>+  static constexpr absl::uint128 infinity() { return 0; }
>+  static constexpr absl::uint128 quiet_NaN() { return 0; }
>+  static constexpr absl::uint128 signaling_NaN() { return 0; }
>+  static constexpr absl::uint128 denorm_min() { return 0; }
>+};
>+}  // namespace std
>+
>+// TODO(absl-team): Implement signed 128-bit type
>+
>+// --------------------------------------------------------------------------
>+//                      Implementation details follow
>+// --------------------------------------------------------------------------
>+namespace absl {
>+
>+constexpr uint128 MakeUint128(uint64_t high, uint64_t low) {
>+  return uint128(high, low);
>+}
>+
>+// Assignment from integer types.
>+
>+inline uint128& uint128::operator=(int v) { return *this = uint128(v); }
>+
>+inline uint128& uint128::operator=(unsigned int v) {
>+  return *this = uint128(v);
>+}
>+
>+inline uint128& uint128::operator=(long v) {  // NOLINT(runtime/int)
>+  return *this = uint128(v);
>+}
>+
>+// NOLINTNEXTLINE(runtime/int)
>+inline uint128& uint128::operator=(unsigned long v) {
>+  return *this = uint128(v);
>+}
>+
>+// NOLINTNEXTLINE(runtime/int)
>+inline uint128& uint128::operator=(long long v) {
>+  return *this = uint128(v);
>+}
>+
>+// NOLINTNEXTLINE(runtime/int)
>+inline uint128& uint128::operator=(unsigned long long v) {
>+  return *this = uint128(v);
>+}
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+inline uint128& uint128::operator=(__int128 v) {
>+  return *this = uint128(v);
>+}
>+
>+inline uint128& uint128::operator=(unsigned __int128 v) {
>+  return *this = uint128(v);
>+}
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+// Arithmetic operators.
>+
>+uint128 operator<<(uint128 lhs, int amount);
>+uint128 operator>>(uint128 lhs, int amount);
>+uint128 operator+(uint128 lhs, uint128 rhs);
>+uint128 operator-(uint128 lhs, uint128 rhs);
>+uint128 operator*(uint128 lhs, uint128 rhs);
>+uint128 operator/(uint128 lhs, uint128 rhs);
>+uint128 operator%(uint128 lhs, uint128 rhs);
>+
>+inline uint128& uint128::operator<<=(int amount) {
>+  *this = *this << amount;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator>>=(int amount) {
>+  *this = *this >> amount;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator+=(uint128 other) {
>+  *this = *this + other;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator-=(uint128 other) {
>+  *this = *this - other;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator*=(uint128 other) {
>+  *this = *this * other;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator/=(uint128 other) {
>+  *this = *this / other;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator%=(uint128 other) {
>+  *this = *this % other;
>+  return *this;
>+}
>+
>+constexpr uint64_t Uint128Low64(uint128 v) { return v.lo_; }
>+
>+constexpr uint64_t Uint128High64(uint128 v) { return v.hi_; }
>+
>+// Constructors from integer types.
>+
>+#if defined(ABSL_IS_LITTLE_ENDIAN)
>+
>+constexpr uint128::uint128(uint64_t high, uint64_t low)
>+    : lo_{low}, hi_{high} {}
>+
>+constexpr uint128::uint128(int v)
>+    : lo_{static_cast<uint64_t>(v)},
>+      hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0} {}
>+constexpr uint128::uint128(long v)  // NOLINT(runtime/int)
>+    : lo_{static_cast<uint64_t>(v)},
>+      hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0} {}
>+constexpr uint128::uint128(long long v)  // NOLINT(runtime/int)
>+    : lo_{static_cast<uint64_t>(v)},
>+      hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0} {}
>+
>+constexpr uint128::uint128(unsigned int v) : lo_{v}, hi_{0} {}
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::uint128(unsigned long v) : lo_{v}, hi_{0} {}
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::uint128(unsigned long long v) : lo_{v}, hi_{0} {}
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+constexpr uint128::uint128(__int128 v)
>+    : lo_{static_cast<uint64_t>(v & ~uint64_t{0})},
>+      hi_{static_cast<uint64_t>(static_cast<unsigned __int128>(v) >> 64)} {}
>+constexpr uint128::uint128(unsigned __int128 v)
>+    : lo_{static_cast<uint64_t>(v & ~uint64_t{0})},
>+      hi_{static_cast<uint64_t>(v >> 64)} {}
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+#elif defined(ABSL_IS_BIG_ENDIAN)
>+
>+constexpr uint128::uint128(uint64_t high, uint64_t low)
>+    : hi_{high}, lo_{low} {}
>+
>+constexpr uint128::uint128(int v)
>+    : hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0},
>+      lo_{static_cast<uint64_t>(v)} {}
>+constexpr uint128::uint128(long v)  // NOLINT(runtime/int)
>+    : hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0},
>+      lo_{static_cast<uint64_t>(v)} {}
>+constexpr uint128::uint128(long long v)  // NOLINT(runtime/int)
>+    : hi_{v < 0 ? std::numeric_limits<uint64_t>::max() : 0},
>+      lo_{static_cast<uint64_t>(v)} {}
>+
>+constexpr uint128::uint128(unsigned int v) : hi_{0}, lo_{v} {}
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::uint128(unsigned long v) : hi_{0}, lo_{v} {}
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::uint128(unsigned long long v) : hi_{0}, lo_{v} {}
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+constexpr uint128::uint128(__int128 v)
>+    : hi_{static_cast<uint64_t>(static_cast<unsigned __int128>(v) >> 64)},
>+      lo_{static_cast<uint64_t>(v & ~uint64_t{0})} {}
>+constexpr uint128::uint128(unsigned __int128 v)
>+    : hi_{static_cast<uint64_t>(v >> 64)},
>+      lo_{static_cast<uint64_t>(v & ~uint64_t{0})} {}
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+#else  // byte order
>+#error "Unsupported byte order: must be little-endian or big-endian."
>+#endif  // byte order
>+
>+// Conversion operators to integer types.
>+
>+constexpr uint128::operator bool() const { return lo_ || hi_; }
>+
>+constexpr uint128::operator char() const { return static_cast<char>(lo_); }
>+
>+constexpr uint128::operator signed char() const {
>+  return static_cast<signed char>(lo_);
>+}
>+
>+constexpr uint128::operator unsigned char() const {
>+  return static_cast<unsigned char>(lo_);
>+}
>+
>+constexpr uint128::operator char16_t() const {
>+  return static_cast<char16_t>(lo_);
>+}
>+
>+constexpr uint128::operator char32_t() const {
>+  return static_cast<char32_t>(lo_);
>+}
>+
>+constexpr uint128::operator wchar_t() const {
>+  return static_cast<wchar_t>(lo_);
>+}
>+
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::operator short() const { return static_cast<short>(lo_); }
>+
>+constexpr uint128::operator unsigned short() const {  // NOLINT(runtime/int)
>+  return static_cast<unsigned short>(lo_);            // NOLINT(runtime/int)
>+}
>+
>+constexpr uint128::operator int() const { return static_cast<int>(lo_); }
>+
>+constexpr uint128::operator unsigned int() const {
>+  return static_cast<unsigned int>(lo_);
>+}
>+
>+// NOLINTNEXTLINE(runtime/int)
>+constexpr uint128::operator long() const { return static_cast<long>(lo_); }
>+
>+constexpr uint128::operator unsigned long() const {  // NOLINT(runtime/int)
>+  return static_cast<unsigned long>(lo_);            // NOLINT(runtime/int)
>+}
>+
>+constexpr uint128::operator long long() const {  // NOLINT(runtime/int)
>+  return static_cast<long long>(lo_);            // NOLINT(runtime/int)
>+}
>+
>+constexpr uint128::operator unsigned long long() const {  // NOLINT(runtime/int)
>+  return static_cast<unsigned long long>(lo_);            // NOLINT(runtime/int)
>+}
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+constexpr uint128::operator __int128() const {
>+  return (static_cast<__int128>(hi_) << 64) + lo_;
>+}
>+
>+constexpr uint128::operator unsigned __int128() const {
>+  return (static_cast<unsigned __int128>(hi_) << 64) + lo_;
>+}
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+// Conversion operators to floating point types.
>+
>+inline uint128::operator float() const {
>+  return static_cast<float>(lo_) + std::ldexp(static_cast<float>(hi_), 64);
>+}
>+
>+inline uint128::operator double() const {
>+  return static_cast<double>(lo_) + std::ldexp(static_cast<double>(hi_), 64);
>+}
>+
>+inline uint128::operator long double() const {
>+  return static_cast<long double>(lo_) +
>+         std::ldexp(static_cast<long double>(hi_), 64);
>+}
>+
>+// Comparison operators.
>+
>+inline bool operator==(uint128 lhs, uint128 rhs) {
>+  return (Uint128Low64(lhs) == Uint128Low64(rhs) &&
>+          Uint128High64(lhs) == Uint128High64(rhs));
>+}
>+
>+inline bool operator!=(uint128 lhs, uint128 rhs) {
>+  return !(lhs == rhs);
>+}
>+
>+inline bool operator<(uint128 lhs, uint128 rhs) {
>+  return (Uint128High64(lhs) == Uint128High64(rhs))
>+             ? (Uint128Low64(lhs) < Uint128Low64(rhs))
>+             : (Uint128High64(lhs) < Uint128High64(rhs));
>+}
>+
>+inline bool operator>(uint128 lhs, uint128 rhs) {
>+  return (Uint128High64(lhs) == Uint128High64(rhs))
>+             ? (Uint128Low64(lhs) > Uint128Low64(rhs))
>+             : (Uint128High64(lhs) > Uint128High64(rhs));
>+}
>+
>+inline bool operator<=(uint128 lhs, uint128 rhs) {
>+  return (Uint128High64(lhs) == Uint128High64(rhs))
>+             ? (Uint128Low64(lhs) <= Uint128Low64(rhs))
>+             : (Uint128High64(lhs) <= Uint128High64(rhs));
>+}
>+
>+inline bool operator>=(uint128 lhs, uint128 rhs) {
>+  return (Uint128High64(lhs) == Uint128High64(rhs))
>+             ? (Uint128Low64(lhs) >= Uint128Low64(rhs))
>+             : (Uint128High64(lhs) >= Uint128High64(rhs));
>+}
>+
>+// Unary operators.
>+
>+inline uint128 operator-(uint128 val) {
>+  uint64_t hi = ~Uint128High64(val);
>+  uint64_t lo = ~Uint128Low64(val) + 1;
>+  if (lo == 0) ++hi;  // carry
>+  return MakeUint128(hi, lo);
>+}
>+
>+inline bool operator!(uint128 val) {
>+  return !Uint128High64(val) && !Uint128Low64(val);
>+}
>+
>+// Logical operators.
>+
>+inline uint128 operator~(uint128 val) {
>+  return MakeUint128(~Uint128High64(val), ~Uint128Low64(val));
>+}
>+
>+inline uint128 operator|(uint128 lhs, uint128 rhs) {
>+  return MakeUint128(Uint128High64(lhs) | Uint128High64(rhs),
>+                           Uint128Low64(lhs) | Uint128Low64(rhs));
>+}
>+
>+inline uint128 operator&(uint128 lhs, uint128 rhs) {
>+  return MakeUint128(Uint128High64(lhs) & Uint128High64(rhs),
>+                           Uint128Low64(lhs) & Uint128Low64(rhs));
>+}
>+
>+inline uint128 operator^(uint128 lhs, uint128 rhs) {
>+  return MakeUint128(Uint128High64(lhs) ^ Uint128High64(rhs),
>+                           Uint128Low64(lhs) ^ Uint128Low64(rhs));
>+}
>+
>+inline uint128& uint128::operator|=(uint128 other) {
>+  hi_ |= other.hi_;
>+  lo_ |= other.lo_;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator&=(uint128 other) {
>+  hi_ &= other.hi_;
>+  lo_ &= other.lo_;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator^=(uint128 other) {
>+  hi_ ^= other.hi_;
>+  lo_ ^= other.lo_;
>+  return *this;
>+}
>+
>+// Arithmetic operators.
>+
>+inline uint128 operator<<(uint128 lhs, int amount) {
>+  // uint64_t shifts of >= 64 are undefined, so we will need some
>+  // special-casing.
>+  if (amount < 64) {
>+    if (amount != 0) {
>+      return MakeUint128(
>+          (Uint128High64(lhs) << amount) | (Uint128Low64(lhs) >> (64 - amount)),
>+          Uint128Low64(lhs) << amount);
>+    }
>+    return lhs;
>+  }
>+  return MakeUint128(Uint128Low64(lhs) << (amount - 64), 0);
>+}
>+
>+inline uint128 operator>>(uint128 lhs, int amount) {
>+  // uint64_t shifts of >= 64 are undefined, so we will need some
>+  // special-casing.
>+  if (amount < 64) {
>+    if (amount != 0) {
>+      return MakeUint128(Uint128High64(lhs) >> amount,
>+                         (Uint128Low64(lhs) >> amount) |
>+                             (Uint128High64(lhs) << (64 - amount)));
>+    }
>+    return lhs;
>+  }
>+  return MakeUint128(0, Uint128High64(lhs) >> (amount - 64));
>+}
>+
>+inline uint128 operator+(uint128 lhs, uint128 rhs) {
>+  uint128 result = MakeUint128(Uint128High64(lhs) + Uint128High64(rhs),
>+                               Uint128Low64(lhs) + Uint128Low64(rhs));
>+  if (Uint128Low64(result) < Uint128Low64(lhs)) {  // check for carry
>+    return MakeUint128(Uint128High64(result) + 1, Uint128Low64(result));
>+  }
>+  return result;
>+}
>+
>+inline uint128 operator-(uint128 lhs, uint128 rhs) {
>+  uint128 result = MakeUint128(Uint128High64(lhs) - Uint128High64(rhs),
>+                               Uint128Low64(lhs) - Uint128Low64(rhs));
>+  if (Uint128Low64(lhs) < Uint128Low64(rhs)) {  // check for carry
>+    return MakeUint128(Uint128High64(result) - 1, Uint128Low64(result));
>+  }
>+  return result;
>+}
>+
>+inline uint128 operator*(uint128 lhs, uint128 rhs) {
>+#if defined(ABSL_HAVE_INTRINSIC_INT128)
>+  // TODO(strel) Remove once alignment issues are resolved and unsigned __int128
>+  // can be used for uint128 storage.
>+  return static_cast<unsigned __int128>(lhs) *
>+         static_cast<unsigned __int128>(rhs);
>+#else   // ABSL_HAVE_INTRINSIC128
>+  uint64_t a32 = Uint128Low64(lhs) >> 32;
>+  uint64_t a00 = Uint128Low64(lhs) & 0xffffffff;
>+  uint64_t b32 = Uint128Low64(rhs) >> 32;
>+  uint64_t b00 = Uint128Low64(rhs) & 0xffffffff;
>+  uint128 result =
>+      MakeUint128(Uint128High64(lhs) * Uint128Low64(rhs) +
>+                      Uint128Low64(lhs) * Uint128High64(rhs) + a32 * b32,
>+                  a00 * b00);
>+  result += uint128(a32 * b00) << 32;
>+  result += uint128(a00 * b32) << 32;
>+  return result;
>+#endif  // ABSL_HAVE_INTRINSIC128
>+}
>+
>+// Increment/decrement operators.
>+
>+inline uint128 uint128::operator++(int) {
>+  uint128 tmp(*this);
>+  *this += 1;
>+  return tmp;
>+}
>+
>+inline uint128 uint128::operator--(int) {
>+  uint128 tmp(*this);
>+  *this -= 1;
>+  return tmp;
>+}
>+
>+inline uint128& uint128::operator++() {
>+  *this += 1;
>+  return *this;
>+}
>+
>+inline uint128& uint128::operator--() {
>+  *this -= 1;
>+  return *this;
>+}
>+
>+#if defined(ABSL_HAVE_INTRINSIC_INT128)
>+#include "absl/numeric/int128_have_intrinsic.inc"
>+#else  // ABSL_HAVE_INTRINSIC_INT128
>+#include "absl/numeric/int128_no_intrinsic.inc"
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_NUMERIC_INT128_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1cb7d0ed87e0ca17deb5dfea0d718a10d75892fc
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_benchmark.cc
>@@ -0,0 +1,221 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/numeric/int128.h"
>+
>+#include <algorithm>
>+#include <cstdint>
>+#include <random>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/config.h"
>+
>+namespace {
>+
>+constexpr size_t kSampleSize = 1000000;
>+
>+std::mt19937 MakeRandomEngine() {
>+  std::random_device r;
>+  std::seed_seq seed({r(), r(), r(), r(), r(), r(), r(), r()});
>+  return std::mt19937(seed);
>+}
>+
>+std::vector<std::pair<absl::uint128, absl::uint128>>
>+GetRandomClass128SampleUniformDivisor() {
>+  std::vector<std::pair<absl::uint128, absl::uint128>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  std::uniform_int_distribution<uint64_t> uniform_uint64;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    absl::uint128 a =
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random));
>+    absl::uint128 b =
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random));
>+    values.emplace_back(std::max(a, b),
>+                        std::max(absl::uint128(2), std::min(a, b)));
>+  }
>+  return values;
>+}
>+
>+void BM_DivideClass128UniformDivisor(benchmark::State& state) {
>+  auto values = GetRandomClass128SampleUniformDivisor();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first / pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_DivideClass128UniformDivisor);
>+
>+std::vector<std::pair<absl::uint128, uint64_t>>
>+GetRandomClass128SampleSmallDivisor() {
>+  std::vector<std::pair<absl::uint128, uint64_t>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  std::uniform_int_distribution<uint64_t> uniform_uint64;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    absl::uint128 a =
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random));
>+    uint64_t b = std::max(uint64_t{2}, uniform_uint64(random));
>+    values.emplace_back(std::max(a, absl::uint128(b)), b);
>+  }
>+  return values;
>+}
>+
>+void BM_DivideClass128SmallDivisor(benchmark::State& state) {
>+  auto values = GetRandomClass128SampleSmallDivisor();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first / pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_DivideClass128SmallDivisor);
>+
>+std::vector<std::pair<absl::uint128, absl::uint128>> GetRandomClass128Sample() {
>+  std::vector<std::pair<absl::uint128, absl::uint128>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  std::uniform_int_distribution<uint64_t> uniform_uint64;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    values.emplace_back(
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random)),
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random)));
>+  }
>+  return values;
>+}
>+
>+void BM_MultiplyClass128(benchmark::State& state) {
>+  auto values = GetRandomClass128Sample();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first * pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_MultiplyClass128);
>+
>+void BM_AddClass128(benchmark::State& state) {
>+  auto values = GetRandomClass128Sample();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first + pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_AddClass128);
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+
>+// Some implementations of <random> do not support __int128 when it is
>+// available, so we make our own uniform_int_distribution-like type.
>+class UniformIntDistribution128 {
>+ public:
>+  // NOLINTNEXTLINE: mimicking std::uniform_int_distribution API
>+  unsigned __int128 operator()(std::mt19937& generator) {
>+    return (static_cast<unsigned __int128>(dist64_(generator)) << 64) |
>+           dist64_(generator);
>+  }
>+
>+ private:
>+  std::uniform_int_distribution<uint64_t> dist64_;
>+};
>+
>+std::vector<std::pair<unsigned __int128, unsigned __int128>>
>+GetRandomIntrinsic128SampleUniformDivisor() {
>+  std::vector<std::pair<unsigned __int128, unsigned __int128>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  UniformIntDistribution128 uniform_uint128;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    unsigned __int128 a = uniform_uint128(random);
>+    unsigned __int128 b = uniform_uint128(random);
>+    values.emplace_back(
>+        std::max(a, b),
>+        std::max(static_cast<unsigned __int128>(2), std::min(a, b)));
>+  }
>+  return values;
>+}
>+
>+void BM_DivideIntrinsic128UniformDivisor(benchmark::State& state) {
>+  auto values = GetRandomIntrinsic128SampleUniformDivisor();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first / pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_DivideIntrinsic128UniformDivisor);
>+
>+std::vector<std::pair<unsigned __int128, uint64_t>>
>+GetRandomIntrinsic128SampleSmallDivisor() {
>+  std::vector<std::pair<unsigned __int128, uint64_t>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  UniformIntDistribution128 uniform_uint128;
>+  std::uniform_int_distribution<uint64_t> uniform_uint64;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    unsigned __int128 a = uniform_uint128(random);
>+    uint64_t b = std::max(uint64_t{2}, uniform_uint64(random));
>+    values.emplace_back(std::max(a, static_cast<unsigned __int128>(b)), b);
>+  }
>+  return values;
>+}
>+
>+void BM_DivideIntrinsic128SmallDivisor(benchmark::State& state) {
>+  auto values = GetRandomIntrinsic128SampleSmallDivisor();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first / pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_DivideIntrinsic128SmallDivisor);
>+
>+std::vector<std::pair<unsigned __int128, unsigned __int128>>
>+      GetRandomIntrinsic128Sample() {
>+  std::vector<std::pair<unsigned __int128, unsigned __int128>> values;
>+  std::mt19937 random = MakeRandomEngine();
>+  UniformIntDistribution128 uniform_uint128;
>+  values.reserve(kSampleSize);
>+  for (size_t i = 0; i < kSampleSize; ++i) {
>+    values.emplace_back(uniform_uint128(random), uniform_uint128(random));
>+  }
>+  return values;
>+}
>+
>+void BM_MultiplyIntrinsic128(benchmark::State& state) {
>+  auto values = GetRandomIntrinsic128Sample();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first * pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_MultiplyIntrinsic128);
>+
>+void BM_AddIntrinsic128(benchmark::State& state) {
>+  auto values = GetRandomIntrinsic128Sample();
>+  while (state.KeepRunningBatch(values.size())) {
>+    for (const auto& pair : values) {
>+      benchmark::DoNotOptimize(pair.first + pair.second);
>+    }
>+  }
>+}
>+BENCHMARK(BM_AddIntrinsic128);
>+
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_have_intrinsic.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_have_intrinsic.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ee2a093018d955315f95282057029cb2fd590276
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_have_intrinsic.inc
>@@ -0,0 +1,18 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains :int128 implementation details that depend on internal
>+// representation when ABSL_HAVE_INTRINSIC_INT128 is defined. This file is
>+// included by int128.h.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_no_intrinsic.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_no_intrinsic.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0d0b3cfdeb125a4291d5a3dc5f3c50552b1a40c9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_no_intrinsic.inc
>@@ -0,0 +1,18 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains :int128 implementation details that depend on internal
>+// representation when ABSL_HAVE_INTRINSIC_INT128 is *not* defined. This file
>+// is included by int128.h.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_stream_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_stream_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..09efaad4e7fbad2dd7849ebce492ae7d0dcc270a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_stream_test.cc
>@@ -0,0 +1,666 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/numeric/int128.h"
>+
>+#include <sstream>
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+struct Uint128TestCase {
>+  absl::uint128 value;
>+  std::ios_base::fmtflags flags;
>+  std::streamsize width;
>+  const char* expected;
>+};
>+
>+constexpr char kFill = '_';
>+
>+std::string StreamFormatToString(std::ios_base::fmtflags flags,
>+                                 std::streamsize width) {
>+  std::vector<const char*> flagstr;
>+  switch (flags & std::ios::basefield) {
>+    case std::ios::dec:
>+      flagstr.push_back("std::ios::dec");
>+      break;
>+    case std::ios::oct:
>+      flagstr.push_back("std::ios::oct");
>+      break;
>+    case std::ios::hex:
>+      flagstr.push_back("std::ios::hex");
>+      break;
>+    default:  // basefield not specified
>+      break;
>+  }
>+  switch (flags & std::ios::adjustfield) {
>+    case std::ios::left:
>+      flagstr.push_back("std::ios::left");
>+      break;
>+    case std::ios::internal:
>+      flagstr.push_back("std::ios::internal");
>+      break;
>+    case std::ios::right:
>+      flagstr.push_back("std::ios::right");
>+      break;
>+    default:  // adjustfield not specified
>+      break;
>+  }
>+  if (flags & std::ios::uppercase) flagstr.push_back("std::ios::uppercase");
>+  if (flags & std::ios::showbase) flagstr.push_back("std::ios::showbase");
>+  if (flags & std::ios::showpos) flagstr.push_back("std::ios::showpos");
>+
>+  std::ostringstream msg;
>+  msg << "\n  StreamFormatToString(test_case.flags, test_case.width)\n    "
>+         "flags: ";
>+  if (!flagstr.empty()) {
>+    for (size_t i = 0; i < flagstr.size() - 1; ++i) msg << flagstr[i] << " | ";
>+    msg << flagstr.back();
>+  } else {
>+    msg << "(default)";
>+  }
>+  msg << "\n    width: " << width << "\n    fill: '" << kFill << "'";
>+  return msg.str();
>+}
>+
>+void CheckUint128Case(const Uint128TestCase& test_case) {
>+  std::ostringstream os;
>+  os.flags(test_case.flags);
>+  os.width(test_case.width);
>+  os.fill(kFill);
>+  os << test_case.value;
>+  SCOPED_TRACE(StreamFormatToString(test_case.flags, test_case.width));
>+  EXPECT_EQ(test_case.expected, os.str());
>+}
>+
>+constexpr std::ios::fmtflags kDec = std::ios::dec;
>+constexpr std::ios::fmtflags kOct = std::ios::oct;
>+constexpr std::ios::fmtflags kHex = std::ios::hex;
>+constexpr std::ios::fmtflags kLeft = std::ios::left;
>+constexpr std::ios::fmtflags kInt = std::ios::internal;
>+constexpr std::ios::fmtflags kRight = std::ios::right;
>+constexpr std::ios::fmtflags kUpper = std::ios::uppercase;
>+constexpr std::ios::fmtflags kBase = std::ios::showbase;
>+constexpr std::ios::fmtflags kPos = std::ios::showpos;
>+
>+TEST(Uint128, OStreamValueTest) {
>+  CheckUint128Case({1, kDec, /*width = */ 0, "1"});
>+  CheckUint128Case({1, kOct, /*width = */ 0, "1"});
>+  CheckUint128Case({1, kHex, /*width = */ 0, "1"});
>+  CheckUint128Case({9, kDec, /*width = */ 0, "9"});
>+  CheckUint128Case({9, kOct, /*width = */ 0, "11"});
>+  CheckUint128Case({9, kHex, /*width = */ 0, "9"});
>+  CheckUint128Case({12345, kDec, /*width = */ 0, "12345"});
>+  CheckUint128Case({12345, kOct, /*width = */ 0, "30071"});
>+  CheckUint128Case({12345, kHex, /*width = */ 0, "3039"});
>+  CheckUint128Case(
>+      {0x8000000000000000, kDec, /*width = */ 0, "9223372036854775808"});
>+  CheckUint128Case(
>+      {0x8000000000000000, kOct, /*width = */ 0, "1000000000000000000000"});
>+  CheckUint128Case(
>+      {0x8000000000000000, kHex, /*width = */ 0, "8000000000000000"});
>+  CheckUint128Case({std::numeric_limits<uint64_t>::max(), kDec,
>+                    /*width = */ 0, "18446744073709551615"});
>+  CheckUint128Case({std::numeric_limits<uint64_t>::max(), kOct,
>+                    /*width = */ 0, "1777777777777777777777"});
>+  CheckUint128Case({std::numeric_limits<uint64_t>::max(), kHex,
>+                    /*width = */ 0, "ffffffffffffffff"});
>+  CheckUint128Case(
>+      {absl::MakeUint128(1, 0), kDec, /*width = */ 0, "18446744073709551616"});
>+  CheckUint128Case({absl::MakeUint128(1, 0), kOct, /*width = */ 0,
>+                    "2000000000000000000000"});
>+  CheckUint128Case(
>+      {absl::MakeUint128(1, 0), kHex, /*width = */ 0, "10000000000000000"});
>+  CheckUint128Case({absl::MakeUint128(0x8000000000000000, 0), kDec,
>+                    /*width = */ 0, "170141183460469231731687303715884105728"});
>+  CheckUint128Case({absl::MakeUint128(0x8000000000000000, 0), kOct,
>+                    /*width = */ 0,
>+                    "2000000000000000000000000000000000000000000"});
>+  CheckUint128Case({absl::MakeUint128(0x8000000000000000, 0), kHex,
>+                    /*width = */ 0, "80000000000000000000000000000000"});
>+  CheckUint128Case({absl::kuint128max, kDec, /*width = */ 0,
>+                    "340282366920938463463374607431768211455"});
>+  CheckUint128Case({absl::kuint128max, kOct, /*width = */ 0,
>+                    "3777777777777777777777777777777777777777777"});
>+  CheckUint128Case({absl::kuint128max, kHex, /*width = */ 0,
>+                    "ffffffffffffffffffffffffffffffff"});
>+}
>+
>+std::vector<Uint128TestCase> GetUint128FormatCases();
>+
>+TEST(Uint128, OStreamFormatTest) {
>+  for (const Uint128TestCase& test_case : GetUint128FormatCases()) {
>+    CheckUint128Case(test_case);
>+  }
>+}
>+
>+std::vector<Uint128TestCase> GetUint128FormatCases() {
>+  return {
>+      {0, std::ios_base::fmtflags(), /*width = */ 0, "0"},
>+      {0, std::ios_base::fmtflags(), /*width = */ 6, "_____0"},
>+      {0, kPos, /*width = */ 0, "0"},
>+      {0, kPos, /*width = */ 6, "_____0"},
>+      {0, kBase, /*width = */ 0, "0"},
>+      {0, kBase, /*width = */ 6, "_____0"},
>+      {0, kBase | kPos, /*width = */ 0, "0"},
>+      {0, kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kUpper, /*width = */ 0, "0"},
>+      {0, kUpper, /*width = */ 6, "_____0"},
>+      {0, kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kLeft, /*width = */ 0, "0"},
>+      {0, kLeft, /*width = */ 6, "0_____"},
>+      {0, kLeft | kPos, /*width = */ 0, "0"},
>+      {0, kLeft | kPos, /*width = */ 6, "0_____"},
>+      {0, kLeft | kBase, /*width = */ 0, "0"},
>+      {0, kLeft | kBase, /*width = */ 6, "0_____"},
>+      {0, kLeft | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kLeft | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kLeft | kUpper, /*width = */ 0, "0"},
>+      {0, kLeft | kUpper, /*width = */ 6, "0_____"},
>+      {0, kLeft | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kLeft | kUpper | kPos, /*width = */ 6, "0_____"},
>+      {0, kLeft | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kLeft | kUpper | kBase, /*width = */ 6, "0_____"},
>+      {0, kLeft | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kLeft | kUpper | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kInt, /*width = */ 0, "0"},
>+      {0, kInt, /*width = */ 6, "_____0"},
>+      {0, kInt | kPos, /*width = */ 0, "0"},
>+      {0, kInt | kPos, /*width = */ 6, "_____0"},
>+      {0, kInt | kBase, /*width = */ 0, "0"},
>+      {0, kInt | kBase, /*width = */ 6, "_____0"},
>+      {0, kInt | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kInt | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kInt | kUpper, /*width = */ 0, "0"},
>+      {0, kInt | kUpper, /*width = */ 6, "_____0"},
>+      {0, kInt | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kInt | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kInt | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kInt | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kInt | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kInt | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kRight, /*width = */ 0, "0"},
>+      {0, kRight, /*width = */ 6, "_____0"},
>+      {0, kRight | kPos, /*width = */ 0, "0"},
>+      {0, kRight | kPos, /*width = */ 6, "_____0"},
>+      {0, kRight | kBase, /*width = */ 0, "0"},
>+      {0, kRight | kBase, /*width = */ 6, "_____0"},
>+      {0, kRight | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kRight | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kRight | kUpper, /*width = */ 0, "0"},
>+      {0, kRight | kUpper, /*width = */ 6, "_____0"},
>+      {0, kRight | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kRight | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kRight | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kRight | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kRight | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kRight | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec, /*width = */ 0, "0"},
>+      {0, kDec, /*width = */ 6, "_____0"},
>+      {0, kDec | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kUpper, /*width = */ 0, "0"},
>+      {0, kDec | kUpper, /*width = */ 6, "_____0"},
>+      {0, kDec | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kLeft, /*width = */ 0, "0"},
>+      {0, kDec | kLeft, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kPos, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kBase, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kUpper, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kUpper, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kUpper | kPos, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kUpper | kBase, /*width = */ 6, "0_____"},
>+      {0, kDec | kLeft | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kLeft | kUpper | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kDec | kInt, /*width = */ 0, "0"},
>+      {0, kDec | kInt, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kUpper, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kUpper, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kInt | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kInt | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight, /*width = */ 0, "0"},
>+      {0, kDec | kRight, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kUpper, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kUpper, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kDec | kRight | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kDec | kRight | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct, /*width = */ 0, "0"},
>+      {0, kOct, /*width = */ 6, "_____0"},
>+      {0, kOct | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kBase, /*width = */ 6, "_____0"},
>+      {0, kOct | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kUpper, /*width = */ 0, "0"},
>+      {0, kOct | kUpper, /*width = */ 6, "_____0"},
>+      {0, kOct | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kOct | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kLeft, /*width = */ 0, "0"},
>+      {0, kOct | kLeft, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kPos, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kBase, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kUpper, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kUpper, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kUpper | kPos, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kUpper | kBase, /*width = */ 6, "0_____"},
>+      {0, kOct | kLeft | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kLeft | kUpper | kBase | kPos, /*width = */ 6, "0_____"},
>+      {0, kOct | kInt, /*width = */ 0, "0"},
>+      {0, kOct | kInt, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kBase, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kUpper, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kUpper, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kUpper | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kUpper | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kUpper | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kUpper | kBase, /*width = */ 6, "_____0"},
>+      {0, kOct | kInt | kUpper | kBase | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kInt | kUpper | kBase | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kRight, /*width = */ 0, "0"},
>+      {0, kOct | kRight, /*width = */ 6, "_____0"},
>+      {0, kOct | kRight | kPos, /*width = */ 0, "0"},
>+      {0, kOct | kRight | kPos, /*width = */ 6, "_____0"},
>+      {0, kOct | kRight | kBase, /*width = */ 0, "0"},
>+      {0, kOct | kRight | kBase, /*width = */ 6, "_____0"},
>+      {0, kOct | kRight | kBase | kPos, /*width = */ 0, "0"},
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>+      {37, kHex | kInt | kPos, /*width = */ 6, "____25"},
>+      {37, kHex | kInt | kBase, /*width = */ 0, "0x25"},
>+      {37, kHex | kInt | kBase, /*width = */ 6, "0x__25"},
>+      {37, kHex | kInt | kBase | kPos, /*width = */ 0, "0x25"},
>+      {37, kHex | kInt | kBase | kPos, /*width = */ 6, "0x__25"},
>+      {37, kHex | kInt | kUpper, /*width = */ 0, "25"},
>+      {37, kHex | kInt | kUpper, /*width = */ 6, "____25"},
>+      {37, kHex | kInt | kUpper | kPos, /*width = */ 0, "25"},
>+      {37, kHex | kInt | kUpper | kPos, /*width = */ 6, "____25"},
>+      {37, kHex | kInt | kUpper | kBase, /*width = */ 0, "0X25"},
>+      {37, kHex | kInt | kUpper | kBase, /*width = */ 6, "0X__25"},
>+      {37, kHex | kInt | kUpper | kBase | kPos, /*width = */ 0, "0X25"},
>+      {37, kHex | kInt | kUpper | kBase | kPos, /*width = */ 6, "0X__25"},
>+      {37, kHex | kRight, /*width = */ 0, "25"},
>+      {37, kHex | kRight, /*width = */ 6, "____25"},
>+      {37, kHex | kRight | kPos, /*width = */ 0, "25"},
>+      {37, kHex | kRight | kPos, /*width = */ 6, "____25"},
>+      {37, kHex | kRight | kBase, /*width = */ 0, "0x25"},
>+      {37, kHex | kRight | kBase, /*width = */ 6, "__0x25"},
>+      {37, kHex | kRight | kBase | kPos, /*width = */ 0, "0x25"},
>+      {37, kHex | kRight | kBase | kPos, /*width = */ 6, "__0x25"},
>+      {37, kHex | kRight | kUpper, /*width = */ 0, "25"},
>+      {37, kHex | kRight | kUpper, /*width = */ 6, "____25"},
>+      {37, kHex | kRight | kUpper | kPos, /*width = */ 0, "25"},
>+      {37, kHex | kRight | kUpper | kPos, /*width = */ 6, "____25"},
>+      {37, kHex | kRight | kUpper | kBase, /*width = */ 0, "0X25"},
>+      {37, kHex | kRight | kUpper | kBase, /*width = */ 6, "__0X25"},
>+      {37, kHex | kRight | kUpper | kBase | kPos, /*width = */ 0, "0X25"},
>+      {37, kHex | kRight | kUpper | kBase | kPos, /*width = */ 6, "__0X25"}};
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1eb3e0ec8961c1c6c88756ef1f201f0203aee0a2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/numeric/int128_test.cc
>@@ -0,0 +1,442 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/numeric/int128.h"
>+
>+#include <algorithm>
>+#include <limits>
>+#include <random>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/cycleclock.h"
>+#include "absl/meta/type_traits.h"
>+
>+#if defined(_MSC_VER) && _MSC_VER == 1900
>+// Disable "unary minus operator applied to unsigned type" warnings in Microsoft
>+// Visual C++ 14 (2015).
>+#pragma warning(disable:4146)
>+#endif
>+
>+namespace {
>+
>+template <typename T>
>+class Uint128IntegerTraitsTest : public ::testing::Test {};
>+typedef ::testing::Types<bool, char, signed char, unsigned char, char16_t,
>+                         char32_t, wchar_t,
>+                         short,           // NOLINT(runtime/int)
>+                         unsigned short,  // NOLINT(runtime/int)
>+                         int, unsigned int,
>+                         long,                // NOLINT(runtime/int)
>+                         unsigned long,       // NOLINT(runtime/int)
>+                         long long,           // NOLINT(runtime/int)
>+                         unsigned long long>  // NOLINT(runtime/int)
>+    IntegerTypes;
>+
>+template <typename T>
>+class Uint128FloatTraitsTest : public ::testing::Test {};
>+typedef ::testing::Types<float, double, long double> FloatingPointTypes;
>+
>+TYPED_TEST_CASE(Uint128IntegerTraitsTest, IntegerTypes);
>+
>+TYPED_TEST(Uint128IntegerTraitsTest, ConstructAssignTest) {
>+  static_assert(std::is_constructible<absl::uint128, TypeParam>::value,
>+                "absl::uint128 must be constructible from TypeParam");
>+  static_assert(std::is_assignable<absl::uint128&, TypeParam>::value,
>+                "absl::uint128 must be assignable from TypeParam");
>+  static_assert(!std::is_assignable<TypeParam&, absl::uint128>::value,
>+                "TypeParam must not be assignable from absl::uint128");
>+}
>+
>+TYPED_TEST_CASE(Uint128FloatTraitsTest, FloatingPointTypes);
>+
>+TYPED_TEST(Uint128FloatTraitsTest, ConstructAssignTest) {
>+  static_assert(std::is_constructible<absl::uint128, TypeParam>::value,
>+                "absl::uint128 must be constructible from TypeParam");
>+  static_assert(!std::is_assignable<absl::uint128&, TypeParam>::value,
>+                "absl::uint128 must not be assignable from TypeParam");
>+  static_assert(!std::is_assignable<TypeParam&, absl::uint128>::value,
>+                "TypeParam must not be assignable from absl::uint128");
>+}
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+// These type traits done separately as TYPED_TEST requires typeinfo, and not
>+// all platforms have this for __int128 even though they define the type.
>+TEST(Uint128, IntrinsicTypeTraitsTest) {
>+  static_assert(std::is_constructible<absl::uint128, __int128>::value,
>+                "absl::uint128 must be constructible from __int128");
>+  static_assert(std::is_assignable<absl::uint128&, __int128>::value,
>+                "absl::uint128 must be assignable from __int128");
>+  static_assert(!std::is_assignable<__int128&, absl::uint128>::value,
>+                "__int128 must not be assignable from absl::uint128");
>+
>+  static_assert(std::is_constructible<absl::uint128, unsigned __int128>::value,
>+                "absl::uint128 must be constructible from unsigned __int128");
>+  static_assert(std::is_assignable<absl::uint128&, unsigned __int128>::value,
>+                "absl::uint128 must be assignable from unsigned __int128");
>+  static_assert(!std::is_assignable<unsigned __int128&, absl::uint128>::value,
>+                "unsigned __int128 must not be assignable from absl::uint128");
>+}
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+TEST(Uint128, TrivialTraitsTest) {
>+  static_assert(absl::is_trivially_default_constructible<absl::uint128>::value,
>+                "");
>+  static_assert(absl::is_trivially_copy_constructible<absl::uint128>::value,
>+                "");
>+  static_assert(absl::is_trivially_copy_assignable<absl::uint128>::value, "");
>+  static_assert(std::is_trivially_destructible<absl::uint128>::value, "");
>+}
>+
>+TEST(Uint128, AllTests) {
>+  absl::uint128 zero = 0;
>+  absl::uint128 one = 1;
>+  absl::uint128 one_2arg = absl::MakeUint128(0, 1);
>+  absl::uint128 two = 2;
>+  absl::uint128 three = 3;
>+  absl::uint128 big = absl::MakeUint128(2000, 2);
>+  absl::uint128 big_minus_one = absl::MakeUint128(2000, 1);
>+  absl::uint128 bigger = absl::MakeUint128(2001, 1);
>+  absl::uint128 biggest = absl::Uint128Max();
>+  absl::uint128 high_low = absl::MakeUint128(1, 0);
>+  absl::uint128 low_high =
>+      absl::MakeUint128(0, std::numeric_limits<uint64_t>::max());
>+  EXPECT_LT(one, two);
>+  EXPECT_GT(two, one);
>+  EXPECT_LT(one, big);
>+  EXPECT_LT(one, big);
>+  EXPECT_EQ(one, one_2arg);
>+  EXPECT_NE(one, two);
>+  EXPECT_GT(big, one);
>+  EXPECT_GE(big, two);
>+  EXPECT_GE(big, big_minus_one);
>+  EXPECT_GT(big, big_minus_one);
>+  EXPECT_LT(big_minus_one, big);
>+  EXPECT_LE(big_minus_one, big);
>+  EXPECT_NE(big_minus_one, big);
>+  EXPECT_LT(big, biggest);
>+  EXPECT_LE(big, biggest);
>+  EXPECT_GT(biggest, big);
>+  EXPECT_GE(biggest, big);
>+  EXPECT_EQ(big, ~~big);
>+  EXPECT_EQ(one, one | one);
>+  EXPECT_EQ(big, big | big);
>+  EXPECT_EQ(one, one | zero);
>+  EXPECT_EQ(one, one & one);
>+  EXPECT_EQ(big, big & big);
>+  EXPECT_EQ(zero, one & zero);
>+  EXPECT_EQ(zero, big & ~big);
>+  EXPECT_EQ(zero, one ^ one);
>+  EXPECT_EQ(zero, big ^ big);
>+  EXPECT_EQ(one, one ^ zero);
>+
>+  // Shift operators.
>+  EXPECT_EQ(big, big << 0);
>+  EXPECT_EQ(big, big >> 0);
>+  EXPECT_GT(big << 1, big);
>+  EXPECT_LT(big >> 1, big);
>+  EXPECT_EQ(big, (big << 10) >> 10);
>+  EXPECT_EQ(big, (big >> 1) << 1);
>+  EXPECT_EQ(one, (one << 80) >> 80);
>+  EXPECT_EQ(zero, (one >> 80) << 80);
>+
>+  // Shift assignments.
>+  absl::uint128 big_copy = big;
>+  EXPECT_EQ(big << 0, big_copy <<= 0);
>+  big_copy = big;
>+  EXPECT_EQ(big >> 0, big_copy >>= 0);
>+  big_copy = big;
>+  EXPECT_EQ(big << 1, big_copy <<= 1);
>+  big_copy = big;
>+  EXPECT_EQ(big >> 1, big_copy >>= 1);
>+  big_copy = big;
>+  EXPECT_EQ(big << 10, big_copy <<= 10);
>+  big_copy = big;
>+  EXPECT_EQ(big >> 10, big_copy >>= 10);
>+  big_copy = big;
>+  EXPECT_EQ(big << 64, big_copy <<= 64);
>+  big_copy = big;
>+  EXPECT_EQ(big >> 64, big_copy >>= 64);
>+  big_copy = big;
>+  EXPECT_EQ(big << 73, big_copy <<= 73);
>+  big_copy = big;
>+  EXPECT_EQ(big >> 73, big_copy >>= 73);
>+
>+  EXPECT_EQ(absl::Uint128High64(biggest), std::numeric_limits<uint64_t>::max());
>+  EXPECT_EQ(absl::Uint128Low64(biggest), std::numeric_limits<uint64_t>::max());
>+  EXPECT_EQ(zero + one, one);
>+  EXPECT_EQ(one + one, two);
>+  EXPECT_EQ(big_minus_one + one, big);
>+  EXPECT_EQ(one - one, zero);
>+  EXPECT_EQ(one - zero, one);
>+  EXPECT_EQ(zero - one, biggest);
>+  EXPECT_EQ(big - big, zero);
>+  EXPECT_EQ(big - one, big_minus_one);
>+  EXPECT_EQ(big + std::numeric_limits<uint64_t>::max(), bigger);
>+  EXPECT_EQ(biggest + 1, zero);
>+  EXPECT_EQ(zero - 1, biggest);
>+  EXPECT_EQ(high_low - one, low_high);
>+  EXPECT_EQ(low_high + one, high_low);
>+  EXPECT_EQ(absl::Uint128High64((absl::uint128(1) << 64) - 1), 0);
>+  EXPECT_EQ(absl::Uint128Low64((absl::uint128(1) << 64) - 1),
>+            std::numeric_limits<uint64_t>::max());
>+  EXPECT_TRUE(!!one);
>+  EXPECT_TRUE(!!high_low);
>+  EXPECT_FALSE(!!zero);
>+  EXPECT_FALSE(!one);
>+  EXPECT_FALSE(!high_low);
>+  EXPECT_TRUE(!zero);
>+  EXPECT_TRUE(zero == 0);       // NOLINT(readability/check)
>+  EXPECT_FALSE(zero != 0);      // NOLINT(readability/check)
>+  EXPECT_FALSE(one == 0);       // NOLINT(readability/check)
>+  EXPECT_TRUE(one != 0);        // NOLINT(readability/check)
>+  EXPECT_FALSE(high_low == 0);  // NOLINT(readability/check)
>+  EXPECT_TRUE(high_low != 0);   // NOLINT(readability/check)
>+
>+  absl::uint128 test = zero;
>+  EXPECT_EQ(++test, one);
>+  EXPECT_EQ(test, one);
>+  EXPECT_EQ(test++, one);
>+  EXPECT_EQ(test, two);
>+  EXPECT_EQ(test -= 2, zero);
>+  EXPECT_EQ(test, zero);
>+  EXPECT_EQ(test += 2, two);
>+  EXPECT_EQ(test, two);
>+  EXPECT_EQ(--test, one);
>+  EXPECT_EQ(test, one);
>+  EXPECT_EQ(test--, one);
>+  EXPECT_EQ(test, zero);
>+  EXPECT_EQ(test |= three, three);
>+  EXPECT_EQ(test &= one, one);
>+  EXPECT_EQ(test ^= three, two);
>+  EXPECT_EQ(test >>= 1, one);
>+  EXPECT_EQ(test <<= 1, two);
>+
>+  EXPECT_EQ(big, -(-big));
>+  EXPECT_EQ(two, -((-one) - 1));
>+  EXPECT_EQ(absl::Uint128Max(), -one);
>+  EXPECT_EQ(zero, -zero);
>+
>+  EXPECT_EQ(absl::Uint128Max(), absl::kuint128max);
>+}
>+
>+TEST(Uint128, ConversionTests) {
>+  EXPECT_TRUE(absl::MakeUint128(1, 0));
>+
>+#ifdef ABSL_HAVE_INTRINSIC_INT128
>+  unsigned __int128 intrinsic =
>+      (static_cast<unsigned __int128>(0x3a5b76c209de76f6) << 64) +
>+      0x1f25e1d63a2b46c5;
>+  absl::uint128 custom =
>+      absl::MakeUint128(0x3a5b76c209de76f6, 0x1f25e1d63a2b46c5);
>+
>+  EXPECT_EQ(custom, absl::uint128(intrinsic));
>+  EXPECT_EQ(custom, absl::uint128(static_cast<__int128>(intrinsic)));
>+  EXPECT_EQ(intrinsic, static_cast<unsigned __int128>(custom));
>+  EXPECT_EQ(intrinsic, static_cast<__int128>(custom));
>+#endif  // ABSL_HAVE_INTRINSIC_INT128
>+
>+  // verify that an integer greater than 2**64 that can be stored precisely
>+  // inside a double is converted to a absl::uint128 without loss of
>+  // information.
>+  double precise_double = 0x530e * std::pow(2.0, 64.0) + 0xda74000000000000;
>+  absl::uint128 from_precise_double(precise_double);
>+  absl::uint128 from_precise_ints =
>+      absl::MakeUint128(0x530e, 0xda74000000000000);
>+  EXPECT_EQ(from_precise_double, from_precise_ints);
>+  EXPECT_DOUBLE_EQ(static_cast<double>(from_precise_ints), precise_double);
>+
>+  double approx_double = 0xffffeeeeddddcccc * std::pow(2.0, 64.0) +
>+                         0xbbbbaaaa99998888;
>+  absl::uint128 from_approx_double(approx_double);
>+  EXPECT_DOUBLE_EQ(static_cast<double>(from_approx_double), approx_double);
>+
>+  double round_to_zero = 0.7;
>+  double round_to_five = 5.8;
>+  double round_to_nine = 9.3;
>+  EXPECT_EQ(static_cast<absl::uint128>(round_to_zero), 0);
>+  EXPECT_EQ(static_cast<absl::uint128>(round_to_five), 5);
>+  EXPECT_EQ(static_cast<absl::uint128>(round_to_nine), 9);
>+}
>+
>+TEST(Uint128, OperatorAssignReturnRef) {
>+  absl::uint128 v(1);
>+  (v += 4) -= 3;
>+  EXPECT_EQ(2, v);
>+}
>+
>+TEST(Uint128, Multiply) {
>+  absl::uint128 a, b, c;
>+
>+  // Zero test.
>+  a = 0;
>+  b = 0;
>+  c = a * b;
>+  EXPECT_EQ(0, c);
>+
>+  // Max carries.
>+  a = absl::uint128(0) - 1;
>+  b = absl::uint128(0) - 1;
>+  c = a * b;
>+  EXPECT_EQ(1, c);
>+
>+  // Self-operation with max carries.
>+  c = absl::uint128(0) - 1;
>+  c *= c;
>+  EXPECT_EQ(1, c);
>+
>+  // 1-bit x 1-bit.
>+  for (int i = 0; i < 64; ++i) {
>+    for (int j = 0; j < 64; ++j) {
>+      a = absl::uint128(1) << i;
>+      b = absl::uint128(1) << j;
>+      c = a * b;
>+      EXPECT_EQ(absl::uint128(1) << (i + j), c);
>+    }
>+  }
>+
>+  // Verified with dc.
>+  a = absl::MakeUint128(0xffffeeeeddddcccc, 0xbbbbaaaa99998888);
>+  b = absl::MakeUint128(0x7777666655554444, 0x3333222211110000);
>+  c = a * b;
>+  EXPECT_EQ(absl::MakeUint128(0x530EDA741C71D4C3, 0xBF25975319080000), c);
>+  EXPECT_EQ(0, c - b * a);
>+  EXPECT_EQ(a*a - b*b, (a+b) * (a-b));
>+
>+  // Verified with dc.
>+  a = absl::MakeUint128(0x0123456789abcdef, 0xfedcba9876543210);
>+  b = absl::MakeUint128(0x02468ace13579bdf, 0xfdb97531eca86420);
>+  c = a * b;
>+  EXPECT_EQ(absl::MakeUint128(0x97a87f4f261ba3f2, 0x342d0bbf48948200), c);
>+  EXPECT_EQ(0, c - b * a);
>+  EXPECT_EQ(a*a - b*b, (a+b) * (a-b));
>+}
>+
>+TEST(Uint128, AliasTests) {
>+  absl::uint128 x1 = absl::MakeUint128(1, 2);
>+  absl::uint128 x2 = absl::MakeUint128(2, 4);
>+  x1 += x1;
>+  EXPECT_EQ(x2, x1);
>+
>+  absl::uint128 x3 = absl::MakeUint128(1, static_cast<uint64_t>(1) << 63);
>+  absl::uint128 x4 = absl::MakeUint128(3, 0);
>+  x3 += x3;
>+  EXPECT_EQ(x4, x3);
>+}
>+
>+TEST(Uint128, DivideAndMod) {
>+  using std::swap;
>+
>+  // a := q * b + r
>+  absl::uint128 a, b, q, r;
>+
>+  // Zero test.
>+  a = 0;
>+  b = 123;
>+  q = a / b;
>+  r = a % b;
>+  EXPECT_EQ(0, q);
>+  EXPECT_EQ(0, r);
>+
>+  a = absl::MakeUint128(0x530eda741c71d4c3, 0xbf25975319080000);
>+  q = absl::MakeUint128(0x4de2cab081, 0x14c34ab4676e4bab);
>+  b = absl::uint128(0x1110001);
>+  r = absl::uint128(0x3eb455);
>+  ASSERT_EQ(a, q * b + r);  // Sanity-check.
>+
>+  absl::uint128 result_q, result_r;
>+  result_q = a / b;
>+  result_r = a % b;
>+  EXPECT_EQ(q, result_q);
>+  EXPECT_EQ(r, result_r);
>+
>+  // Try the other way around.
>+  swap(q, b);
>+  result_q = a / b;
>+  result_r = a % b;
>+  EXPECT_EQ(q, result_q);
>+  EXPECT_EQ(r, result_r);
>+  // Restore.
>+  swap(b, q);
>+
>+  // Dividend < divisor; result should be q:0 r:<dividend>.
>+  swap(a, b);
>+  result_q = a / b;
>+  result_r = a % b;
>+  EXPECT_EQ(0, result_q);
>+  EXPECT_EQ(a, result_r);
>+  // Try the other way around.
>+  swap(a, q);
>+  result_q = a / b;
>+  result_r = a % b;
>+  EXPECT_EQ(0, result_q);
>+  EXPECT_EQ(a, result_r);
>+  // Restore.
>+  swap(q, a);
>+  swap(b, a);
>+
>+  // Try a large remainder.
>+  b = a / 2 + 1;
>+  absl::uint128 expected_r =
>+      absl::MakeUint128(0x29876d3a0e38ea61, 0xdf92cba98c83ffff);
>+  // Sanity checks.
>+  ASSERT_EQ(a / 2 - 1, expected_r);
>+  ASSERT_EQ(a, b + expected_r);
>+  result_q = a / b;
>+  result_r = a % b;
>+  EXPECT_EQ(1, result_q);
>+  EXPECT_EQ(expected_r, result_r);
>+}
>+
>+TEST(Uint128, DivideAndModRandomInputs) {
>+  const int kNumIters = 1 << 18;
>+  std::minstd_rand random(testing::UnitTest::GetInstance()->random_seed());
>+  std::uniform_int_distribution<uint64_t> uniform_uint64;
>+  for (int i = 0; i < kNumIters; ++i) {
>+    const absl::uint128 a =
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random));
>+    const absl::uint128 b =
>+        absl::MakeUint128(uniform_uint64(random), uniform_uint64(random));
>+    if (b == 0) {
>+      continue;  // Avoid a div-by-zero.
>+    }
>+    const absl::uint128 q = a / b;
>+    const absl::uint128 r = a % b;
>+    ASSERT_EQ(a, b * q + r);
>+  }
>+}
>+
>+TEST(Uint128, ConstexprTest) {
>+  constexpr absl::uint128 zero = absl::uint128();
>+  constexpr absl::uint128 one = 1;
>+  constexpr absl::uint128 minus_two = -2;
>+  EXPECT_EQ(zero, absl::uint128(0));
>+  EXPECT_EQ(one, absl::uint128(1));
>+  EXPECT_EQ(minus_two, absl::MakeUint128(-1, -2));
>+}
>+
>+TEST(Uint128, NumericLimitsTest) {
>+  static_assert(std::numeric_limits<absl::uint128>::is_specialized, "");
>+  static_assert(!std::numeric_limits<absl::uint128>::is_signed, "");
>+  static_assert(std::numeric_limits<absl::uint128>::is_integer, "");
>+  EXPECT_EQ(static_cast<int>(128 * std::log10(2)),
>+            std::numeric_limits<absl::uint128>::digits10);
>+  EXPECT_EQ(0, std::numeric_limits<absl::uint128>::min());
>+  EXPECT_EQ(0, std::numeric_limits<absl::uint128>::lowest());
>+  EXPECT_EQ(absl::Uint128Max(), std::numeric_limits<absl::uint128>::max());
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..3a5f1332cda0e1f7040ef0dbdae557b018213854
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.bazel
>@@ -0,0 +1,661 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+    "ABSL_EXCEPTIONS_FLAG",
>+)
>+
>+package(
>+    default_visibility = ["//visibility:public"],
>+    features = ["parse_headers"],
>+)
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "strings",
>+    srcs = [
>+        "ascii.cc",
>+        "charconv.cc",
>+        "escaping.cc",
>+        "internal/charconv_bigint.cc",
>+        "internal/charconv_bigint.h",
>+        "internal/charconv_parse.cc",
>+        "internal/charconv_parse.h",
>+        "internal/memutil.cc",
>+        "internal/memutil.h",
>+        "internal/stl_type_traits.h",
>+        "internal/str_join_internal.h",
>+        "internal/str_split_internal.h",
>+        "match.cc",
>+        "numbers.cc",
>+        "str_cat.cc",
>+        "str_replace.cc",
>+        "str_split.cc",
>+        "string_view.cc",
>+        "substitute.cc",
>+    ],
>+    hdrs = [
>+        "ascii.h",
>+        "charconv.h",
>+        "escaping.h",
>+        "match.h",
>+        "numbers.h",
>+        "str_cat.h",
>+        "str_join.h",
>+        "str_replace.h",
>+        "str_split.h",
>+        "string_view.h",
>+        "strip.h",
>+        "substitute.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":internal",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/base:endian",
>+        "//absl/base:throw_delegate",
>+        "//absl/memory",
>+        "//absl/meta:type_traits",
>+        "//absl/numeric:int128",
>+    ],
>+)
>+
>+cc_library(
>+    name = "internal",
>+    srcs = [
>+        "internal/ostringstream.cc",
>+        "internal/utf8.cc",
>+    ],
>+    hdrs = [
>+        "internal/bits.h",
>+        "internal/char_map.h",
>+        "internal/ostringstream.h",
>+        "internal/resize_uninitialized.h",
>+        "internal/utf8.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base:core_headers",
>+        "//absl/base:endian",
>+        "//absl/meta:type_traits",
>+    ],
>+)
>+
>+cc_test(
>+    name = "match_test",
>+    size = "small",
>+    srcs = ["match_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "escaping_test",
>+    size = "small",
>+    srcs = [
>+        "escaping_test.cc",
>+        "internal/escaping_test_common.h",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "//absl/container:fixed_array",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "escaping_benchmark",
>+    srcs = [
>+        "escaping_benchmark.cc",
>+        "internal/escaping_test_common.h",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "ascii_test",
>+    size = "small",
>+    srcs = ["ascii_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "ascii_benchmark",
>+    srcs = ["ascii_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "memutil_benchmark",
>+    srcs = [
>+        "internal/memutil.h",
>+        "internal/memutil_benchmark.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "memutil_test",
>+    size = "small",
>+    srcs = [
>+        "internal/memutil.h",
>+        "internal/memutil_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "utf8_test",
>+    size = "small",
>+    srcs = [
>+        "internal/utf8_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":internal",
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "string_view_benchmark",
>+    srcs = ["string_view_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "string_view_test",
>+    size = "small",
>+    srcs = ["string_view_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/base:dynamic_annotations",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "substitute_test",
>+    size = "small",
>+    srcs = ["substitute_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_replace_benchmark",
>+    srcs = ["str_replace_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_replace_test",
>+    size = "small",
>+    srcs = ["str_replace_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_split_test",
>+    srcs = ["str_split_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "//absl/base:dynamic_annotations",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_split_benchmark",
>+    srcs = ["str_split_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "ostringstream_test",
>+    size = "small",
>+    srcs = ["internal/ostringstream_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "ostringstream_benchmark",
>+    srcs = ["internal/ostringstream_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":internal",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "resize_uninitialized_test",
>+    size = "small",
>+    srcs = [
>+        "internal/resize_uninitialized.h",
>+        "internal/resize_uninitialized_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_join_test",
>+    size = "small",
>+    srcs = ["str_join_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_join_benchmark",
>+    srcs = ["str_join_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/memory",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_cat_test",
>+    size = "small",
>+    srcs = ["str_cat_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_cat_benchmark",
>+    srcs = ["str_cat_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "numbers_test",
>+    size = "small",
>+    srcs = [
>+        "internal/numbers_test_common.h",
>+        "numbers_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "numbers_benchmark",
>+    srcs = ["numbers_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "strip_test",
>+    size = "small",
>+    srcs = ["strip_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "char_map_test",
>+    srcs = ["internal/char_map_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "char_map_benchmark",
>+    srcs = ["internal/char_map_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":internal",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "charconv_test",
>+    srcs = ["charconv_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "charconv_parse_test",
>+    srcs = [
>+        "internal/charconv_parse.h",
>+        "internal/charconv_parse_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "charconv_bigint_test",
>+    srcs = [
>+        "internal/charconv_bigint.h",
>+        "internal/charconv_bigint_test.cc",
>+        "internal/charconv_parse.h",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "charconv_benchmark",
>+    srcs = [
>+        "charconv_benchmark.cc",
>+    ],
>+    tags = [
>+        "benchmark",
>+    ],
>+    deps = [
>+        ":strings",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "str_format",
>+    hdrs = [
>+        "str_format.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":str_format_internal",
>+    ],
>+)
>+
>+cc_library(
>+    name = "str_format_internal",
>+    srcs = [
>+        "internal/str_format/arg.cc",
>+        "internal/str_format/bind.cc",
>+        "internal/str_format/extension.cc",
>+        "internal/str_format/float_conversion.cc",
>+        "internal/str_format/output.cc",
>+        "internal/str_format/parser.cc",
>+    ],
>+    hdrs = [
>+        "internal/str_format/arg.h",
>+        "internal/str_format/bind.h",
>+        "internal/str_format/checker.h",
>+        "internal/str_format/extension.h",
>+        "internal/str_format/float_conversion.h",
>+        "internal/str_format/output.h",
>+        "internal/str_format/parser.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "//absl/container:inlined_vector",
>+        "//absl/meta:type_traits",
>+        "//absl/numeric:int128",
>+        "//absl/types:span",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_test",
>+    srcs = ["str_format_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format",
>+        ":strings",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_extension_test",
>+    srcs = [
>+        "internal/str_format/extension_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format",
>+        ":str_format_internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_arg_test",
>+    srcs = ["internal/str_format/arg_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format",
>+        ":str_format_internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_bind_test",
>+    srcs = ["internal/str_format/bind_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format_internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_checker_test",
>+    srcs = ["internal/str_format/checker_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_convert_test",
>+    size = "small",
>+    srcs = ["internal/str_format/convert_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format_internal",
>+        "//absl/numeric:int128",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_output_test",
>+    srcs = ["internal/str_format/output_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format_internal",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "str_format_parser_test",
>+    srcs = ["internal/str_format/parser_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":str_format_internal",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..9a8a10d0e7108e79e42c9c5b36355cf879016b95
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/BUILD.gn
>@@ -0,0 +1,146 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("strings") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "ascii.cc",
>+    "charconv.cc",
>+    "escaping.cc",
>+    "internal/charconv_bigint.cc",
>+    "internal/charconv_bigint.h",
>+    "internal/charconv_parse.cc",
>+    "internal/charconv_parse.h",
>+    "internal/memutil.cc",
>+    "internal/memutil.h",
>+    "internal/stl_type_traits.h",
>+    "internal/str_join_internal.h",
>+    "internal/str_split_internal.h",
>+    "match.cc",
>+    "numbers.cc",
>+    "str_cat.cc",
>+    "str_replace.cc",
>+    "str_split.cc",
>+    "string_view.cc",
>+    "substitute.cc",
>+  ]
>+  public = [
>+    "ascii.h",
>+    "charconv.h",
>+    "escaping.h",
>+    "match.h",
>+    "numbers.h",
>+    "str_cat.h",
>+    "str_join.h",
>+    "str_replace.h",
>+    "str_split.h",
>+    "string_view.h",
>+    "strip.h",
>+    "substitute.h",
>+  ]
>+  deps = [
>+    ":internal",
>+    "../base",
>+    "../base:config",
>+    "../base:core_headers",
>+    "../base:endian",
>+    "../base:throw_delegate",
>+    "../memory",
>+    "../meta:type_traits",
>+    "../numeric:int128",
>+  ]
>+}
>+
>+source_set("internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/ostringstream.cc",
>+    "internal/utf8.cc",
>+  ]
>+  public = [
>+    "internal/bits.h",
>+    "internal/char_map.h",
>+    "internal/ostringstream.h",
>+    "internal/resize_uninitialized.h",
>+    "internal/utf8.h",
>+  ]
>+  deps = [
>+    "../base:core_headers",
>+    "../base:endian",
>+    "../meta:type_traits",
>+  ]
>+}
>+
>+source_set("str_format") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "str_format.h",
>+  ]
>+  deps = [
>+    ":str_format_internal",
>+  ]
>+}
>+
>+source_set("str_format_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/str_format/arg.cc",
>+    "internal/str_format/bind.cc",
>+    "internal/str_format/extension.cc",
>+    "internal/str_format/float_conversion.cc",
>+    "internal/str_format/output.cc",
>+    "internal/str_format/parser.cc",
>+  ]
>+  public = [
>+    "internal/str_format/arg.h",
>+    "internal/str_format/bind.h",
>+    "internal/str_format/checker.h",
>+    "internal/str_format/extension.h",
>+    "internal/str_format/float_conversion.h",
>+    "internal/str_format/output.h",
>+    "internal/str_format/parser.h",
>+  ]
>+  visibility = []
>+  visibility += [ ":*" ]
>+  deps = [
>+    ":strings",
>+    "../base:core_headers",
>+    "../container:inlined_vector",
>+    "../meta:type_traits",
>+    "../numeric:int128",
>+    "../types:span",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..cd122134729fa686e98610269f18acb18f8d3007
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/CMakeLists.txt
>@@ -0,0 +1,464 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+
>+list(APPEND STRINGS_PUBLIC_HEADERS
>+  "ascii.h"
>+  "charconv.h"
>+  "escaping.h"
>+  "match.h"
>+  "numbers.h"
>+  "str_cat.h"
>+  "string_view.h"
>+  "strip.h"
>+  "str_join.h"
>+  "str_replace.h"
>+  "str_split.h"
>+  "substitute.h"
>+)
>+
>+
>+list(APPEND STRINGS_INTERNAL_HEADERS
>+  "internal/bits.h"
>+  "internal/char_map.h"
>+  "internal/charconv_bigint.h"
>+  "internal/charconv_parse.h"
>+  "internal/memutil.h"
>+  "internal/ostringstream.h"
>+  "internal/resize_uninitialized.h"
>+  "internal/stl_type_traits.h"
>+  "internal/str_join_internal.h"
>+  "internal/str_split_internal.h"
>+  "internal/utf8.h"
>+)
>+
>+
>+
>+# add string library
>+list(APPEND STRINGS_SRC
>+  "ascii.cc"
>+  "charconv.cc"
>+  "escaping.cc"
>+  "internal/charconv_bigint.cc"
>+  "internal/charconv_parse.cc"
>+  "internal/memutil.cc"
>+  "internal/memutil.h"
>+  "internal/utf8.cc"
>+  "internal/ostringstream.cc"
>+  "match.cc"
>+  "numbers.cc"
>+  "str_cat.cc"
>+  "str_replace.cc"
>+  "str_split.cc"
>+  "string_view.cc"
>+  "substitute.cc"
>+  ${STRINGS_PUBLIC_HEADERS}
>+  ${STRINGS_INTERNAL_HEADERS}
>+)
>+set(STRINGS_PUBLIC_LIBRARIES absl::base absl_throw_delegate)
>+
>+absl_library(
>+  TARGET
>+    absl_strings
>+  SOURCES
>+    ${STRINGS_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STRINGS_PUBLIC_LIBRARIES}
>+  EXPORT_NAME
>+    strings
>+)
>+
>+# add str_format library
>+absl_header_library(
>+  TARGET
>+    absl_str_format
>+  PUBLIC_LIBRARIES
>+    str_format_internal
>+  EXPORT_NAME
>+    str_format
>+)
>+
>+# str_format_internal
>+absl_library(
>+  TARGET
>+    str_format_internal
>+  SOURCES
>+    "internal/str_format/arg.cc"
>+    "internal/str_format/bind.cc"
>+    "internal/str_format/extension.cc"
>+    "internal/str_format/float_conversion.cc"
>+    "internal/str_format/output.cc"
>+    "internal/str_format/parser.cc"
>+    "internal/str_format/arg.h"
>+    "internal/str_format/bind.h"
>+    "internal/str_format/checker.h"
>+    "internal/str_format/extension.h"
>+    "internal/str_format/float_conversion.h"
>+    "internal/str_format/output.h"
>+    "internal/str_format/parser.h"
>+  PUBLIC_LIBRARIES
>+    str_format_extension_internal
>+    absl::strings
>+    absl::base
>+    absl::numeric
>+    absl::container
>+    absl::span
>+)
>+
>+# str_format_extension_internal
>+absl_library(
>+  TARGET
>+    str_format_extension_internal
>+  SOURCES
>+    "internal/str_format/extension.cc"
>+    "internal/str_format/extension.h"
>+    "internal/str_format/output.cc"
>+    "internal/str_format/output.h"
>+  PUBLIC_LIBRARIES
>+    absl::base
>+    absl::strings
>+)
>+
>+#
>+## TESTS
>+#
>+
>+# test match_test
>+set(MATCH_TEST_SRC "match_test.cc")
>+set(MATCH_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    match_test
>+  SOURCES
>+    ${MATCH_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${MATCH_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test escaping_test
>+set(ESCAPING_TEST_SRC "escaping_test.cc")
>+set(ESCAPING_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
>+
>+absl_test(
>+  TARGET
>+    escaping_test
>+  SOURCES
>+    ${ESCAPING_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ESCAPING_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test ascii_test
>+set(ASCII_TEST_SRC "ascii_test.cc")
>+set(ASCII_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    ascii_test
>+  SOURCES
>+    ${ASCII_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ASCII_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test memutil_test
>+set(MEMUTIL_TEST_SRC "internal/memutil_test.cc")
>+set(MEMUTIL_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    memutil_test
>+  SOURCES
>+    ${MEMUTIL_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${MEMUTIL_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test utf8_test
>+set(UTF8_TEST_SRC "internal/utf8_test.cc")
>+set(UTF8_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
>+
>+absl_test(
>+  TARGET
>+    utf8_test
>+  SOURCES
>+    ${UTF8_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${UTF8_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test string_view_test
>+set(STRING_VIEW_TEST_SRC "string_view_test.cc")
>+set(STRING_VIEW_TEST_PUBLIC_LIBRARIES absl::strings absl_throw_delegate absl::base)
>+
>+absl_test(
>+  TARGET
>+    string_view_test
>+  SOURCES
>+    ${STRING_VIEW_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STRING_VIEW_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test substitute_test
>+set(SUBSTITUTE_TEST_SRC "substitute_test.cc")
>+set(SUBSTITUTE_TEST_PUBLIC_LIBRARIES absl::strings absl::base)
>+
>+absl_test(
>+  TARGET
>+    substitute_test
>+  SOURCES
>+    ${SUBSTITUTE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SUBSTITUTE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test str_replace_test
>+set(STR_REPLACE_TEST_SRC "str_replace_test.cc")
>+set(STR_REPLACE_TEST_PUBLIC_LIBRARIES absl::strings absl::base absl_throw_delegate)
>+
>+absl_test(
>+  TARGET
>+    str_replace_test
>+  SOURCES
>+    ${STR_REPLACE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STR_REPLACE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test str_split_test
>+set(STR_SPLIT_TEST_SRC "str_split_test.cc")
>+set(STR_SPLIT_TEST_PUBLIC_LIBRARIES absl::strings absl::base absl_throw_delegate)
>+
>+absl_test(
>+  TARGET
>+    str_split_test
>+  SOURCES
>+    ${STR_SPLIT_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STR_SPLIT_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test ostringstream_test
>+set(OSTRINGSTREAM_TEST_SRC "internal/ostringstream_test.cc")
>+set(OSTRINGSTREAM_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    ostringstream_test
>+  SOURCES
>+    ${OSTRINGSTREAM_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${OSTRINGSTREAM_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test resize_uninitialized_test
>+set(RESIZE_UNINITIALIZED_TEST_SRC "internal/resize_uninitialized_test.cc")
>+
>+absl_test(
>+  TARGET
>+    resize_uninitialized_test
>+  SOURCES
>+    ${RESIZE_UNINITIALIZED_TEST_SRC}
>+)
>+
>+
>+# test str_join_test
>+set(STR_JOIN_TEST_SRC "str_join_test.cc")
>+set(STR_JOIN_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    str_join_test
>+  SOURCES
>+    ${STR_JOIN_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STR_JOIN_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test str_cat_test
>+set(STR_CAT_TEST_SRC "str_cat_test.cc")
>+set(STR_CAT_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    str_cat_test
>+  SOURCES
>+    ${STR_CAT_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STR_CAT_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test numbers_test
>+set(NUMBERS_TEST_SRC "numbers_test.cc")
>+set(NUMBERS_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    numbers_test
>+  SOURCES
>+    ${NUMBERS_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${NUMBERS_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test strip_test
>+set(STRIP_TEST_SRC "strip_test.cc")
>+set(STRIP_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    strip_test
>+  SOURCES
>+    ${STRIP_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${STRIP_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test char_map_test
>+set(CHAR_MAP_TEST_SRC "internal/char_map_test.cc")
>+set(CHAR_MAP_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    char_map_test
>+  SOURCES
>+    ${CHAR_MAP_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CHAR_MAP_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test charconv_test
>+set(CHARCONV_TEST_SRC "charconv_test.cc")
>+set(CHARCONV_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    charconv_test
>+  SOURCES
>+    ${CHARCONV_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CHARCONV_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test charconv_parse_test
>+set(CHARCONV_PARSE_TEST_SRC "internal/charconv_parse_test.cc")
>+set(CHARCONV_PARSE_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    charconv_parse_test
>+  SOURCES
>+    ${CHARCONV_PARSE_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CHARCONV_PARSE_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test charconv_bigint_test
>+set(CHARCONV_BIGINT_TEST_SRC "internal/charconv_bigint_test.cc")
>+set(CHARCONV_BIGINT_TEST_PUBLIC_LIBRARIES absl::strings)
>+
>+absl_test(
>+  TARGET
>+    charconv_bigint_test
>+  SOURCES
>+    ${CHARCONV_BIGINT_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${CHARCONV_BIGINT_TEST_PUBLIC_LIBRARIES}
>+)
>+# test str_format_test
>+absl_test(
>+  TARGET
>+    str_format_test
>+  SOURCES
>+    "str_format_test.cc"
>+  PUBLIC_LIBRARIES
>+    absl::base
>+    absl::str_format
>+    absl::strings
>+)
>+
>+# test str_format_bind_test
>+absl_test(
>+  TARGET
>+    str_format_bind_test
>+  SOURCES
>+    "internal/str_format/bind_test.cc"
>+  PUBLIC_LIBRARIES
>+    str_format_internal
>+)
>+
>+# test str_format_checker_test
>+absl_test(
>+  TARGET
>+    str_format_checker_test
>+  SOURCES
>+    "internal/str_format/checker_test.cc"
>+  PUBLIC_LIBRARIES
>+    absl::str_format
>+)
>+
>+# test str_format_convert_test
>+absl_test(
>+  TARGET
>+    str_format_convert_test
>+  SOURCES
>+    "internal/str_format/convert_test.cc"
>+  PUBLIC_LIBRARIES
>+    str_format_internal
>+    absl::numeric
>+)
>+
>+# test str_format_output_test
>+absl_test(
>+  TARGET
>+    str_format_output_test
>+  SOURCES
>+    "internal/str_format/output_test.cc"
>+  PUBLIC_LIBRARIES
>+    str_format_extension_internal
>+)
>+
>+# test str_format_parser_test
>+absl_test(
>+  TARGET
>+    str_format_parser_test
>+  SOURCES
>+    "internal/str_format/parser_test.cc"
>+  PUBLIC_LIBRARIES
>+    str_format_internal
>+    absl::base
>+)
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c9481e886542b3fbc95efc0fe65739c198a2eec5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.cc
>@@ -0,0 +1,198 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/ascii.h"
>+
>+namespace absl {
>+namespace ascii_internal {
>+
>+// # Table generated by this Python code (bit 0x02 is currently unused):
>+// TODO(mbar) Move Python code for generation of table to BUILD and link here.
>+
>+// NOTE: The kAsciiPropertyBits table used within this code was generated by
>+// Python code of the following form. (Bit 0x02 is currently unused and
>+// available.)
>+//
>+// def Hex2(n):
>+//   return '0x' + hex(n/16)[2:] + hex(n%16)[2:]
>+// def IsPunct(ch):
>+//   return (ord(ch) >= 32 and ord(ch) < 127 and
>+//           not ch.isspace() and not ch.isalnum())
>+// def IsBlank(ch):
>+//   return ch in ' \t'
>+// def IsCntrl(ch):
>+//   return ord(ch) < 32 or ord(ch) == 127
>+// def IsXDigit(ch):
>+//   return ch.isdigit() or ch.lower() in 'abcdef'
>+// for i in range(128):
>+//   ch = chr(i)
>+//   mask = ((ch.isalpha() and 0x01 or 0) |
>+//           (ch.isalnum() and 0x04 or 0) |
>+//           (ch.isspace() and 0x08 or 0) |
>+//           (IsPunct(ch) and 0x10 or 0) |
>+//           (IsBlank(ch) and 0x20 or 0) |
>+//           (IsCntrl(ch) and 0x40 or 0) |
>+//           (IsXDigit(ch) and 0x80 or 0))
>+//   print Hex2(mask) + ',',
>+//   if i % 16 == 7:
>+//     print ' //', Hex2(i & 0x78)
>+//   elif i % 16 == 15:
>+//     print
>+
>+// clang-format off
>+// Array of bitfields holding character information. Each bit value corresponds
>+// to a particular character feature. For readability, and because the value
>+// of these bits is tightly coupled to this implementation, the individual bits
>+// are not named. Note that bitfields for all characters above ASCII 127 are
>+// zero-initialized.
>+const unsigned char kPropertyBits[256] = {
>+    0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  // 0x00
>+    0x40, 0x68, 0x48, 0x48, 0x48, 0x48, 0x40, 0x40,
>+    0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  // 0x10
>+    0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
>+    0x28, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,  // 0x20
>+    0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
>+    0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,  // 0x30
>+    0x84, 0x84, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
>+    0x10, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x05,  // 0x40
>+    0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
>+    0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,  // 0x50
>+    0x05, 0x05, 0x05, 0x10, 0x10, 0x10, 0x10, 0x10,
>+    0x10, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x05,  // 0x60
>+    0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
>+    0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,  // 0x70
>+    0x05, 0x05, 0x05, 0x10, 0x10, 0x10, 0x10, 0x40,
>+};
>+
>+// Array of characters for the ascii_tolower() function. For values 'A'
>+// through 'Z', return the lower-case character; otherwise, return the
>+// identity of the passed character.
>+const char kToLower[256] = {
>+  '\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07',
>+  '\x08', '\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f',
>+  '\x10', '\x11', '\x12', '\x13', '\x14', '\x15', '\x16', '\x17',
>+  '\x18', '\x19', '\x1a', '\x1b', '\x1c', '\x1d', '\x1e', '\x1f',
>+  '\x20', '\x21', '\x22', '\x23', '\x24', '\x25', '\x26', '\x27',
>+  '\x28', '\x29', '\x2a', '\x2b', '\x2c', '\x2d', '\x2e', '\x2f',
>+  '\x30', '\x31', '\x32', '\x33', '\x34', '\x35', '\x36', '\x37',
>+  '\x38', '\x39', '\x3a', '\x3b', '\x3c', '\x3d', '\x3e', '\x3f',
>+  '\x40',    'a',    'b',    'c',    'd',    'e',    'f',    'g',
>+     'h',    'i',    'j',    'k',    'l',    'm',    'n',    'o',
>+     'p',    'q',    'r',    's',    't',    'u',    'v',    'w',
>+     'x',    'y',    'z', '\x5b', '\x5c', '\x5d', '\x5e', '\x5f',
>+  '\x60', '\x61', '\x62', '\x63', '\x64', '\x65', '\x66', '\x67',
>+  '\x68', '\x69', '\x6a', '\x6b', '\x6c', '\x6d', '\x6e', '\x6f',
>+  '\x70', '\x71', '\x72', '\x73', '\x74', '\x75', '\x76', '\x77',
>+  '\x78', '\x79', '\x7a', '\x7b', '\x7c', '\x7d', '\x7e', '\x7f',
>+  '\x80', '\x81', '\x82', '\x83', '\x84', '\x85', '\x86', '\x87',
>+  '\x88', '\x89', '\x8a', '\x8b', '\x8c', '\x8d', '\x8e', '\x8f',
>+  '\x90', '\x91', '\x92', '\x93', '\x94', '\x95', '\x96', '\x97',
>+  '\x98', '\x99', '\x9a', '\x9b', '\x9c', '\x9d', '\x9e', '\x9f',
>+  '\xa0', '\xa1', '\xa2', '\xa3', '\xa4', '\xa5', '\xa6', '\xa7',
>+  '\xa8', '\xa9', '\xaa', '\xab', '\xac', '\xad', '\xae', '\xaf',
>+  '\xb0', '\xb1', '\xb2', '\xb3', '\xb4', '\xb5', '\xb6', '\xb7',
>+  '\xb8', '\xb9', '\xba', '\xbb', '\xbc', '\xbd', '\xbe', '\xbf',
>+  '\xc0', '\xc1', '\xc2', '\xc3', '\xc4', '\xc5', '\xc6', '\xc7',
>+  '\xc8', '\xc9', '\xca', '\xcb', '\xcc', '\xcd', '\xce', '\xcf',
>+  '\xd0', '\xd1', '\xd2', '\xd3', '\xd4', '\xd5', '\xd6', '\xd7',
>+  '\xd8', '\xd9', '\xda', '\xdb', '\xdc', '\xdd', '\xde', '\xdf',
>+  '\xe0', '\xe1', '\xe2', '\xe3', '\xe4', '\xe5', '\xe6', '\xe7',
>+  '\xe8', '\xe9', '\xea', '\xeb', '\xec', '\xed', '\xee', '\xef',
>+  '\xf0', '\xf1', '\xf2', '\xf3', '\xf4', '\xf5', '\xf6', '\xf7',
>+  '\xf8', '\xf9', '\xfa', '\xfb', '\xfc', '\xfd', '\xfe', '\xff',
>+};
>+
>+// Array of characters for the ascii_toupper() function. For values 'a'
>+// through 'z', return the upper-case character; otherwise, return the
>+// identity of the passed character.
>+const char kToUpper[256] = {
>+  '\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07',
>+  '\x08', '\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f',
>+  '\x10', '\x11', '\x12', '\x13', '\x14', '\x15', '\x16', '\x17',
>+  '\x18', '\x19', '\x1a', '\x1b', '\x1c', '\x1d', '\x1e', '\x1f',
>+  '\x20', '\x21', '\x22', '\x23', '\x24', '\x25', '\x26', '\x27',
>+  '\x28', '\x29', '\x2a', '\x2b', '\x2c', '\x2d', '\x2e', '\x2f',
>+  '\x30', '\x31', '\x32', '\x33', '\x34', '\x35', '\x36', '\x37',
>+  '\x38', '\x39', '\x3a', '\x3b', '\x3c', '\x3d', '\x3e', '\x3f',
>+  '\x40', '\x41', '\x42', '\x43', '\x44', '\x45', '\x46', '\x47',
>+  '\x48', '\x49', '\x4a', '\x4b', '\x4c', '\x4d', '\x4e', '\x4f',
>+  '\x50', '\x51', '\x52', '\x53', '\x54', '\x55', '\x56', '\x57',
>+  '\x58', '\x59', '\x5a', '\x5b', '\x5c', '\x5d', '\x5e', '\x5f',
>+  '\x60',    'A',    'B',    'C',    'D',    'E',    'F',    'G',
>+     'H',    'I',    'J',    'K',    'L',    'M',    'N',    'O',
>+     'P',    'Q',    'R',    'S',    'T',    'U',    'V',    'W',
>+     'X',    'Y',    'Z', '\x7b', '\x7c', '\x7d', '\x7e', '\x7f',
>+  '\x80', '\x81', '\x82', '\x83', '\x84', '\x85', '\x86', '\x87',
>+  '\x88', '\x89', '\x8a', '\x8b', '\x8c', '\x8d', '\x8e', '\x8f',
>+  '\x90', '\x91', '\x92', '\x93', '\x94', '\x95', '\x96', '\x97',
>+  '\x98', '\x99', '\x9a', '\x9b', '\x9c', '\x9d', '\x9e', '\x9f',
>+  '\xa0', '\xa1', '\xa2', '\xa3', '\xa4', '\xa5', '\xa6', '\xa7',
>+  '\xa8', '\xa9', '\xaa', '\xab', '\xac', '\xad', '\xae', '\xaf',
>+  '\xb0', '\xb1', '\xb2', '\xb3', '\xb4', '\xb5', '\xb6', '\xb7',
>+  '\xb8', '\xb9', '\xba', '\xbb', '\xbc', '\xbd', '\xbe', '\xbf',
>+  '\xc0', '\xc1', '\xc2', '\xc3', '\xc4', '\xc5', '\xc6', '\xc7',
>+  '\xc8', '\xc9', '\xca', '\xcb', '\xcc', '\xcd', '\xce', '\xcf',
>+  '\xd0', '\xd1', '\xd2', '\xd3', '\xd4', '\xd5', '\xd6', '\xd7',
>+  '\xd8', '\xd9', '\xda', '\xdb', '\xdc', '\xdd', '\xde', '\xdf',
>+  '\xe0', '\xe1', '\xe2', '\xe3', '\xe4', '\xe5', '\xe6', '\xe7',
>+  '\xe8', '\xe9', '\xea', '\xeb', '\xec', '\xed', '\xee', '\xef',
>+  '\xf0', '\xf1', '\xf2', '\xf3', '\xf4', '\xf5', '\xf6', '\xf7',
>+  '\xf8', '\xf9', '\xfa', '\xfb', '\xfc', '\xfd', '\xfe', '\xff',
>+};
>+// clang-format on
>+
>+}  // namespace ascii_internal
>+
>+void AsciiStrToLower(std::string* s) {
>+  for (auto& ch : *s) {
>+    ch = absl::ascii_tolower(ch);
>+  }
>+}
>+
>+void AsciiStrToUpper(std::string* s) {
>+  for (auto& ch : *s) {
>+    ch = absl::ascii_toupper(ch);
>+  }
>+}
>+
>+void RemoveExtraAsciiWhitespace(std::string* str) {
>+  auto stripped = StripAsciiWhitespace(*str);
>+
>+  if (stripped.empty()) {
>+    str->clear();
>+    return;
>+  }
>+
>+  auto input_it = stripped.begin();
>+  auto input_end = stripped.end();
>+  auto output_it = &(*str)[0];
>+  bool is_ws = false;
>+
>+  for (; input_it < input_end; ++input_it) {
>+    if (is_ws) {
>+      // Consecutive whitespace?  Keep only the last.
>+      is_ws = absl::ascii_isspace(*input_it);
>+      if (is_ws) --output_it;
>+    } else {
>+      is_ws = absl::ascii_isspace(*input_it);
>+    }
>+
>+    *output_it = *input_it;
>+    ++output_it;
>+  }
>+
>+  str->erase(output_it - &(*str)[0]);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..96a64541c321a710d29efc8d9263862f1b9960e7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii.h
>@@ -0,0 +1,239 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: ascii.h
>+// -----------------------------------------------------------------------------
>+//
>+// This package contains functions operating on characters and strings
>+// restricted to standard ASCII. These include character classification
>+// functions analogous to those found in the ANSI C Standard Library <ctype.h>
>+// header file.
>+//
>+// C++ implementations provide <ctype.h> functionality based on their
>+// C environment locale. In general, reliance on such a locale is not ideal, as
>+// the locale standard is problematic (and may not return invariant information
>+// for the same character set, for example). These `ascii_*()` functions are
>+// hard-wired for standard ASCII, much faster, and guaranteed to behave
>+// consistently.  They will never be overloaded, nor will their function
>+// signature change.
>+//
>+// `ascii_isalnum()`, `ascii_isalpha()`, `ascii_isascii()`, `ascii_isblank()`,
>+// `ascii_iscntrl()`, `ascii_isdigit()`, `ascii_isgraph()`, `ascii_islower()`,
>+// `ascii_isprint()`, `ascii_ispunct()`, `ascii_isspace()`, `ascii_isupper()`,
>+// `ascii_isxdigit()`
>+//   Analogous to the <ctype.h> functions with similar names, these
>+//   functions take an unsigned char and return a bool, based on whether the
>+//   character matches the condition specified.
>+//
>+//   If the input character has a numerical value greater than 127, these
>+//   functions return `false`.
>+//
>+// `ascii_tolower()`, `ascii_toupper()`
>+//   Analogous to the <ctype.h> functions with similar names, these functions
>+//   take an unsigned char and return a char.
>+//
>+//   If the input character is not an ASCII {lower,upper}-case letter (including
>+//   numerical values greater than 127) then the functions return the same value
>+//   as the input character.
>+
>+#ifndef ABSL_STRINGS_ASCII_H_
>+#define ABSL_STRINGS_ASCII_H_
>+
>+#include <algorithm>
>+#include <string>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace ascii_internal {
>+
>+// Declaration for an array of bitfields holding character information.
>+extern const unsigned char kPropertyBits[256];
>+
>+// Declaration for the array of characters to upper-case characters.
>+extern const char kToUpper[256];
>+
>+// Declaration for the array of characters to lower-case characters.
>+extern const char kToLower[256];
>+
>+}  // namespace ascii_internal
>+
>+// ascii_isalpha()
>+//
>+// Determines whether the given character is an alphabetic character.
>+inline bool ascii_isalpha(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x01) != 0;
>+}
>+
>+// ascii_isalnum()
>+//
>+// Determines whether the given character is an alphanumeric character.
>+inline bool ascii_isalnum(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x04) != 0;
>+}
>+
>+// ascii_isspace()
>+//
>+// Determines whether the given character is a whitespace character (space,
>+// tab, vertical tab, formfeed, linefeed, or carriage return).
>+inline bool ascii_isspace(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x08) != 0;
>+}
>+
>+// ascii_ispunct()
>+//
>+// Determines whether the given character is a punctuation character.
>+inline bool ascii_ispunct(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x10) != 0;
>+}
>+
>+// ascii_isblank()
>+//
>+// Determines whether the given character is a blank character (tab or space).
>+inline bool ascii_isblank(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x20) != 0;
>+}
>+
>+// ascii_iscntrl()
>+//
>+// Determines whether the given character is a control character.
>+inline bool ascii_iscntrl(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x40) != 0;
>+}
>+
>+// ascii_isxdigit()
>+//
>+// Determines whether the given character can be represented as a hexadecimal
>+// digit character (i.e. {0-9} or {A-F}).
>+inline bool ascii_isxdigit(unsigned char c) {
>+  return (ascii_internal::kPropertyBits[c] & 0x80) != 0;
>+}
>+
>+// ascii_isdigit()
>+//
>+// Determines whether the given character can be represented as a decimal
>+// digit character (i.e. {0-9}).
>+inline bool ascii_isdigit(unsigned char c) { return c >= '0' && c <= '9'; }
>+
>+// ascii_isprint()
>+//
>+// Determines whether the given character is printable, including whitespace.
>+inline bool ascii_isprint(unsigned char c) { return c >= 32 && c < 127; }
>+
>+// ascii_isgraph()
>+//
>+// Determines whether the given character has a graphical representation.
>+inline bool ascii_isgraph(unsigned char c) { return c > 32 && c < 127; }
>+
>+// ascii_isupper()
>+//
>+// Determines whether the given character is uppercase.
>+inline bool ascii_isupper(unsigned char c) { return c >= 'A' && c <= 'Z'; }
>+
>+// ascii_islower()
>+//
>+// Determines whether the given character is lowercase.
>+inline bool ascii_islower(unsigned char c) { return c >= 'a' && c <= 'z'; }
>+
>+// ascii_isascii()
>+//
>+// Determines whether the given character is ASCII.
>+inline bool ascii_isascii(unsigned char c) { return c < 128; }
>+
>+// ascii_tolower()
>+//
>+// Returns an ASCII character, converting to lowercase if uppercase is
>+// passed. Note that character values > 127 are simply returned.
>+inline char ascii_tolower(unsigned char c) {
>+  return ascii_internal::kToLower[c];
>+}
>+
>+// Converts the characters in `s` to lowercase, changing the contents of `s`.
>+void AsciiStrToLower(std::string* s);
>+
>+// Creates a lowercase std::string from a given absl::string_view.
>+ABSL_MUST_USE_RESULT inline std::string AsciiStrToLower(absl::string_view s) {
>+  std::string result(s);
>+  absl::AsciiStrToLower(&result);
>+  return result;
>+}
>+
>+// ascii_toupper()
>+//
>+// Returns the ASCII character, converting to upper-case if lower-case is
>+// passed. Note that characters values > 127 are simply returned.
>+inline char ascii_toupper(unsigned char c) {
>+  return ascii_internal::kToUpper[c];
>+}
>+
>+// Converts the characters in `s` to uppercase, changing the contents of `s`.
>+void AsciiStrToUpper(std::string* s);
>+
>+// Creates an uppercase std::string from a given absl::string_view.
>+ABSL_MUST_USE_RESULT inline std::string AsciiStrToUpper(absl::string_view s) {
>+  std::string result(s);
>+  absl::AsciiStrToUpper(&result);
>+  return result;
>+}
>+
>+// Returns absl::string_view with whitespace stripped from the beginning of the
>+// given string_view.
>+ABSL_MUST_USE_RESULT inline absl::string_view StripLeadingAsciiWhitespace(
>+    absl::string_view str) {
>+  auto it = std::find_if_not(str.begin(), str.end(), absl::ascii_isspace);
>+  return absl::string_view(it, str.end() - it);
>+}
>+
>+// Strips in place whitespace from the beginning of the given std::string.
>+inline void StripLeadingAsciiWhitespace(std::string* str) {
>+  auto it = std::find_if_not(str->begin(), str->end(), absl::ascii_isspace);
>+  str->erase(str->begin(), it);
>+}
>+
>+// Returns absl::string_view with whitespace stripped from the end of the given
>+// string_view.
>+ABSL_MUST_USE_RESULT inline absl::string_view StripTrailingAsciiWhitespace(
>+    absl::string_view str) {
>+  auto it = std::find_if_not(str.rbegin(), str.rend(), absl::ascii_isspace);
>+  return absl::string_view(str.begin(), str.rend() - it);
>+}
>+
>+// Strips in place whitespace from the end of the given std::string
>+inline void StripTrailingAsciiWhitespace(std::string* str) {
>+  auto it = std::find_if_not(str->rbegin(), str->rend(), absl::ascii_isspace);
>+  str->erase(str->rend() - it);
>+}
>+
>+// Returns absl::string_view with whitespace stripped from both ends of the
>+// given string_view.
>+ABSL_MUST_USE_RESULT inline absl::string_view StripAsciiWhitespace(
>+    absl::string_view str) {
>+  return StripTrailingAsciiWhitespace(StripLeadingAsciiWhitespace(str));
>+}
>+
>+// Strips in place whitespace from both ends of the given std::string
>+inline void StripAsciiWhitespace(std::string* str) {
>+  StripTrailingAsciiWhitespace(str);
>+  StripLeadingAsciiWhitespace(str);
>+}
>+
>+// Removes leading, trailing, and consecutive internal whitespace.
>+void RemoveExtraAsciiWhitespace(std::string*);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_ASCII_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..8dea4b8cfbf930758e220262606220d83fbfe0c2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_benchmark.cc
>@@ -0,0 +1,120 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/ascii.h"
>+
>+#include <cctype>
>+#include <string>
>+#include <array>
>+#include <random>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+std::array<unsigned char, 256> MakeShuffledBytes() {
>+  std::array<unsigned char, 256> bytes;
>+  for (size_t i = 0; i < 256; ++i) bytes[i] = static_cast<unsigned char>(i);
>+  std::random_device rd;
>+  std::seed_seq seed({rd(), rd(), rd(), rd(), rd(), rd(), rd(), rd()});
>+  std::mt19937 g(seed);
>+  std::shuffle(bytes.begin(), bytes.end(), g);
>+  return bytes;
>+}
>+
>+template <typename Function>
>+void AsciiBenchmark(benchmark::State& state, Function f) {
>+  std::array<unsigned char, 256> bytes = MakeShuffledBytes();
>+  size_t sum = 0;
>+  for (auto _ : state) {
>+    for (unsigned char b : bytes) sum += f(b) ? 1 : 0;
>+  }
>+  // Make a copy of `sum` before calling `DoNotOptimize` to make sure that `sum`
>+  // can be put in a CPU register and not degrade performance in the loop above.
>+  size_t sum2 = sum;
>+  benchmark::DoNotOptimize(sum2);
>+  state.SetBytesProcessed(state.iterations() * bytes.size());
>+}
>+
>+using StdAsciiFunction = int (*)(int);
>+template <StdAsciiFunction f>
>+void BM_Ascii(benchmark::State& state) {
>+  AsciiBenchmark(state, f);
>+}
>+
>+using AbslAsciiIsFunction = bool (*)(unsigned char);
>+template <AbslAsciiIsFunction f>
>+void BM_Ascii(benchmark::State& state) {
>+  AsciiBenchmark(state, f);
>+}
>+
>+using AbslAsciiToFunction = char (*)(unsigned char);
>+template <AbslAsciiToFunction f>
>+void BM_Ascii(benchmark::State& state) {
>+  AsciiBenchmark(state, f);
>+}
>+
>+inline char Noop(unsigned char b) { return static_cast<char>(b); }
>+
>+BENCHMARK_TEMPLATE(BM_Ascii, Noop);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isalpha);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isalpha);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isdigit);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isdigit);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isalnum);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isalnum);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isspace);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isspace);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::ispunct);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_ispunct);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isblank);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isblank);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::iscntrl);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_iscntrl);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isxdigit);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isxdigit);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isprint);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isprint);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isgraph);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isgraph);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::isupper);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isupper);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::islower);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_islower);
>+BENCHMARK_TEMPLATE(BM_Ascii, isascii);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_isascii);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::tolower);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_tolower);
>+BENCHMARK_TEMPLATE(BM_Ascii, std::toupper);
>+BENCHMARK_TEMPLATE(BM_Ascii, absl::ascii_toupper);
>+
>+static void BM_StrToLower(benchmark::State& state) {
>+  const int size = state.range(0);
>+  std::string s(size, 'X');
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::AsciiStrToLower(s));
>+  }
>+}
>+BENCHMARK(BM_StrToLower)->Range(1, 1 << 20);
>+
>+static void BM_StrToUpper(benchmark::State& state) {
>+  const int size = state.range(0);
>+  std::string s(size, 'x');
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::AsciiStrToUpper(s));
>+  }
>+}
>+BENCHMARK(BM_StrToUpper)->Range(1, 1 << 20);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9903b0496b7719df703fc11bd70514c5c74ddd95
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/ascii_test.cc
>@@ -0,0 +1,361 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/ascii.h"
>+
>+#include <cctype>
>+#include <clocale>
>+#include <cstring>
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+namespace {
>+
>+TEST(AsciiIsFoo, All) {
>+  for (int i = 0; i < 256; i++) {
>+    if ((i >= 'a' && i <= 'z') || (i >= 'A' && i <= 'Z'))
>+      EXPECT_TRUE(absl::ascii_isalpha(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isalpha(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if ((i >= '0' && i <= '9'))
>+      EXPECT_TRUE(absl::ascii_isdigit(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isdigit(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (absl::ascii_isalpha(i) || absl::ascii_isdigit(i))
>+      EXPECT_TRUE(absl::ascii_isalnum(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isalnum(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i != '\0' && strchr(" \r\n\t\v\f", i))
>+      EXPECT_TRUE(absl::ascii_isspace(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isspace(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i >= 32 && i < 127)
>+      EXPECT_TRUE(absl::ascii_isprint(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isprint(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (absl::ascii_isprint(i) && !absl::ascii_isspace(i) &&
>+        !absl::ascii_isalnum(i))
>+      EXPECT_TRUE(absl::ascii_ispunct(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_ispunct(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i == ' ' || i == '\t')
>+      EXPECT_TRUE(absl::ascii_isblank(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isblank(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i < 32 || i == 127)
>+      EXPECT_TRUE(absl::ascii_iscntrl(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_iscntrl(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (absl::ascii_isdigit(i) || (i >= 'A' && i <= 'F') ||
>+        (i >= 'a' && i <= 'f'))
>+      EXPECT_TRUE(absl::ascii_isxdigit(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isxdigit(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i > 32 && i < 127)
>+      EXPECT_TRUE(absl::ascii_isgraph(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isgraph(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i >= 'A' && i <= 'Z')
>+      EXPECT_TRUE(absl::ascii_isupper(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_isupper(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 256; i++) {
>+    if (i >= 'a' && i <= 'z')
>+      EXPECT_TRUE(absl::ascii_islower(i)) << ": failed on " << i;
>+    else
>+      EXPECT_TRUE(!absl::ascii_islower(i)) << ": failed on " << i;
>+  }
>+  for (int i = 0; i < 128; i++) {
>+    EXPECT_TRUE(absl::ascii_isascii(i)) << ": failed on " << i;
>+  }
>+  for (int i = 128; i < 256; i++) {
>+    EXPECT_TRUE(!absl::ascii_isascii(i)) << ": failed on " << i;
>+  }
>+
>+  // The official is* functions don't accept negative signed chars, but
>+  // our absl::ascii_is* functions do.
>+  for (int i = 0; i < 256; i++) {
>+    signed char sc = static_cast<signed char>(static_cast<unsigned char>(i));
>+    EXPECT_EQ(absl::ascii_isalpha(i), absl::ascii_isalpha(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isdigit(i), absl::ascii_isdigit(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isalnum(i), absl::ascii_isalnum(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isspace(i), absl::ascii_isspace(sc)) << i;
>+    EXPECT_EQ(absl::ascii_ispunct(i), absl::ascii_ispunct(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isblank(i), absl::ascii_isblank(sc)) << i;
>+    EXPECT_EQ(absl::ascii_iscntrl(i), absl::ascii_iscntrl(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isxdigit(i), absl::ascii_isxdigit(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isprint(i), absl::ascii_isprint(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isgraph(i), absl::ascii_isgraph(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isupper(i), absl::ascii_isupper(sc)) << i;
>+    EXPECT_EQ(absl::ascii_islower(i), absl::ascii_islower(sc)) << i;
>+    EXPECT_EQ(absl::ascii_isascii(i), absl::ascii_isascii(sc)) << i;
>+  }
>+}
>+
>+// Checks that absl::ascii_isfoo returns the same value as isfoo in the C
>+// locale.
>+TEST(AsciiIsFoo, SameAsIsFoo) {
>+#ifndef __ANDROID__
>+  // temporarily change locale to C. It should already be C, but just for safety
>+  const char* old_locale = setlocale(LC_CTYPE, "C");
>+  ASSERT_TRUE(old_locale != nullptr);
>+#endif
>+
>+  for (int i = 0; i < 256; i++) {
>+    EXPECT_EQ(isalpha(i) != 0, absl::ascii_isalpha(i)) << i;
>+    EXPECT_EQ(isdigit(i) != 0, absl::ascii_isdigit(i)) << i;
>+    EXPECT_EQ(isalnum(i) != 0, absl::ascii_isalnum(i)) << i;
>+    EXPECT_EQ(isspace(i) != 0, absl::ascii_isspace(i)) << i;
>+    EXPECT_EQ(ispunct(i) != 0, absl::ascii_ispunct(i)) << i;
>+    EXPECT_EQ(isblank(i) != 0, absl::ascii_isblank(i)) << i;
>+    EXPECT_EQ(iscntrl(i) != 0, absl::ascii_iscntrl(i)) << i;
>+    EXPECT_EQ(isxdigit(i) != 0, absl::ascii_isxdigit(i)) << i;
>+    EXPECT_EQ(isprint(i) != 0, absl::ascii_isprint(i)) << i;
>+    EXPECT_EQ(isgraph(i) != 0, absl::ascii_isgraph(i)) << i;
>+    EXPECT_EQ(isupper(i) != 0, absl::ascii_isupper(i)) << i;
>+    EXPECT_EQ(islower(i) != 0, absl::ascii_islower(i)) << i;
>+    EXPECT_EQ(isascii(i) != 0, absl::ascii_isascii(i)) << i;
>+  }
>+
>+#ifndef __ANDROID__
>+  // restore the old locale.
>+  ASSERT_TRUE(setlocale(LC_CTYPE, old_locale));
>+#endif
>+}
>+
>+TEST(AsciiToFoo, All) {
>+#ifndef __ANDROID__
>+  // temporarily change locale to C. It should already be C, but just for safety
>+  const char* old_locale = setlocale(LC_CTYPE, "C");
>+  ASSERT_TRUE(old_locale != nullptr);
>+#endif
>+
>+  for (int i = 0; i < 256; i++) {
>+    if (absl::ascii_islower(i))
>+      EXPECT_EQ(absl::ascii_toupper(i), 'A' + (i - 'a')) << i;
>+    else
>+      EXPECT_EQ(absl::ascii_toupper(i), static_cast<char>(i)) << i;
>+
>+    if (absl::ascii_isupper(i))
>+      EXPECT_EQ(absl::ascii_tolower(i), 'a' + (i - 'A')) << i;
>+    else
>+      EXPECT_EQ(absl::ascii_tolower(i), static_cast<char>(i)) << i;
>+
>+    // These CHECKs only hold in a C locale.
>+    EXPECT_EQ(static_cast<char>(tolower(i)), absl::ascii_tolower(i)) << i;
>+    EXPECT_EQ(static_cast<char>(toupper(i)), absl::ascii_toupper(i)) << i;
>+
>+    // The official to* functions don't accept negative signed chars, but
>+    // our absl::ascii_to* functions do.
>+    signed char sc = static_cast<signed char>(static_cast<unsigned char>(i));
>+    EXPECT_EQ(absl::ascii_tolower(i), absl::ascii_tolower(sc)) << i;
>+    EXPECT_EQ(absl::ascii_toupper(i), absl::ascii_toupper(sc)) << i;
>+  }
>+#ifndef __ANDROID__
>+  // restore the old locale.
>+  ASSERT_TRUE(setlocale(LC_CTYPE, old_locale));
>+#endif
>+}
>+
>+TEST(AsciiStrTo, Lower) {
>+  const char buf[] = "ABCDEF";
>+  const std::string str("GHIJKL");
>+  const std::string str2("MNOPQR");
>+  const absl::string_view sp(str2);
>+
>+  EXPECT_EQ("abcdef", absl::AsciiStrToLower(buf));
>+  EXPECT_EQ("ghijkl", absl::AsciiStrToLower(str));
>+  EXPECT_EQ("mnopqr", absl::AsciiStrToLower(sp));
>+
>+  char mutable_buf[] = "Mutable";
>+  std::transform(mutable_buf, mutable_buf + strlen(mutable_buf),
>+                 mutable_buf, absl::ascii_tolower);
>+  EXPECT_STREQ("mutable", mutable_buf);
>+}
>+
>+TEST(AsciiStrTo, Upper) {
>+  const char buf[] = "abcdef";
>+  const std::string str("ghijkl");
>+  const std::string str2("mnopqr");
>+  const absl::string_view sp(str2);
>+
>+  EXPECT_EQ("ABCDEF", absl::AsciiStrToUpper(buf));
>+  EXPECT_EQ("GHIJKL", absl::AsciiStrToUpper(str));
>+  EXPECT_EQ("MNOPQR", absl::AsciiStrToUpper(sp));
>+
>+  char mutable_buf[] = "Mutable";
>+  std::transform(mutable_buf, mutable_buf + strlen(mutable_buf),
>+                 mutable_buf, absl::ascii_toupper);
>+  EXPECT_STREQ("MUTABLE", mutable_buf);
>+}
>+
>+TEST(StripLeadingAsciiWhitespace, FromStringView) {
>+  EXPECT_EQ(absl::string_view{},
>+            absl::StripLeadingAsciiWhitespace(absl::string_view{}));
>+  EXPECT_EQ("foo", absl::StripLeadingAsciiWhitespace({"foo"}));
>+  EXPECT_EQ("foo", absl::StripLeadingAsciiWhitespace({"\t  \n\f\r\n\vfoo"}));
>+  EXPECT_EQ("foo foo\n ",
>+            absl::StripLeadingAsciiWhitespace({"\t  \n\f\r\n\vfoo foo\n "}));
>+  EXPECT_EQ(absl::string_view{}, absl::StripLeadingAsciiWhitespace(
>+                                     {"\t  \n\f\r\v\n\t  \n\f\r\v\n"}));
>+}
>+
>+TEST(StripLeadingAsciiWhitespace, InPlace) {
>+  std::string str;
>+
>+  absl::StripLeadingAsciiWhitespace(&str);
>+  EXPECT_EQ("", str);
>+
>+  str = "foo";
>+  absl::StripLeadingAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = "\t  \n\f\r\n\vfoo";
>+  absl::StripLeadingAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = "\t  \n\f\r\n\vfoo foo\n ";
>+  absl::StripLeadingAsciiWhitespace(&str);
>+  EXPECT_EQ("foo foo\n ", str);
>+
>+  str = "\t  \n\f\r\v\n\t  \n\f\r\v\n";
>+  absl::StripLeadingAsciiWhitespace(&str);
>+  EXPECT_EQ(absl::string_view{}, str);
>+}
>+
>+TEST(StripTrailingAsciiWhitespace, FromStringView) {
>+  EXPECT_EQ(absl::string_view{},
>+            absl::StripTrailingAsciiWhitespace(absl::string_view{}));
>+  EXPECT_EQ("foo", absl::StripTrailingAsciiWhitespace({"foo"}));
>+  EXPECT_EQ("foo", absl::StripTrailingAsciiWhitespace({"foo\t  \n\f\r\n\v"}));
>+  EXPECT_EQ(" \nfoo foo",
>+            absl::StripTrailingAsciiWhitespace({" \nfoo foo\t  \n\f\r\n\v"}));
>+  EXPECT_EQ(absl::string_view{}, absl::StripTrailingAsciiWhitespace(
>+                                     {"\t  \n\f\r\v\n\t  \n\f\r\v\n"}));
>+}
>+
>+TEST(StripTrailingAsciiWhitespace, InPlace) {
>+  std::string str;
>+
>+  absl::StripTrailingAsciiWhitespace(&str);
>+  EXPECT_EQ("", str);
>+
>+  str = "foo";
>+  absl::StripTrailingAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = "foo\t  \n\f\r\n\v";
>+  absl::StripTrailingAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = " \nfoo foo\t  \n\f\r\n\v";
>+  absl::StripTrailingAsciiWhitespace(&str);
>+  EXPECT_EQ(" \nfoo foo", str);
>+
>+  str = "\t  \n\f\r\v\n\t  \n\f\r\v\n";
>+  absl::StripTrailingAsciiWhitespace(&str);
>+  EXPECT_EQ(absl::string_view{}, str);
>+}
>+
>+TEST(StripAsciiWhitespace, FromStringView) {
>+  EXPECT_EQ(absl::string_view{},
>+            absl::StripAsciiWhitespace(absl::string_view{}));
>+  EXPECT_EQ("foo", absl::StripAsciiWhitespace({"foo"}));
>+  EXPECT_EQ("foo",
>+            absl::StripAsciiWhitespace({"\t  \n\f\r\n\vfoo\t  \n\f\r\n\v"}));
>+  EXPECT_EQ("foo foo", absl::StripAsciiWhitespace(
>+                           {"\t  \n\f\r\n\vfoo foo\t  \n\f\r\n\v"}));
>+  EXPECT_EQ(absl::string_view{},
>+            absl::StripAsciiWhitespace({"\t  \n\f\r\v\n\t  \n\f\r\v\n"}));
>+}
>+
>+TEST(StripAsciiWhitespace, InPlace) {
>+  std::string str;
>+
>+  absl::StripAsciiWhitespace(&str);
>+  EXPECT_EQ("", str);
>+
>+  str = "foo";
>+  absl::StripAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = "\t  \n\f\r\n\vfoo\t  \n\f\r\n\v";
>+  absl::StripAsciiWhitespace(&str);
>+  EXPECT_EQ("foo", str);
>+
>+  str = "\t  \n\f\r\n\vfoo foo\t  \n\f\r\n\v";
>+  absl::StripAsciiWhitespace(&str);
>+  EXPECT_EQ("foo foo", str);
>+
>+  str = "\t  \n\f\r\v\n\t  \n\f\r\v\n";
>+  absl::StripAsciiWhitespace(&str);
>+  EXPECT_EQ(absl::string_view{}, str);
>+}
>+
>+TEST(RemoveExtraAsciiWhitespace, InPlace) {
>+  const char* inputs[] = {"No extra space",
>+                          "  Leading whitespace",
>+                          "Trailing whitespace  ",
>+                          "  Leading and trailing  ",
>+                          " Whitespace \t  in\v   middle  ",
>+                          "'Eeeeep!  \n Newlines!\n",
>+                          "nospaces",
>+                          "",
>+                          "\n\t a\t\n\nb \t\n"};
>+
>+  const char* outputs[] = {
>+      "No extra space",
>+      "Leading whitespace",
>+      "Trailing whitespace",
>+      "Leading and trailing",
>+      "Whitespace in middle",
>+      "'Eeeeep! Newlines!",
>+      "nospaces",
>+      "",
>+      "a\nb",
>+  };
>+  const int NUM_TESTS = ABSL_ARRAYSIZE(inputs);
>+
>+  for (int i = 0; i < NUM_TESTS; i++) {
>+    std::string s(inputs[i]);
>+    absl::RemoveExtraAsciiWhitespace(&s);
>+    EXPECT_EQ(outputs[i], s);
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..08c3947eccd475dee33310d247bf8740039980c8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.cc
>@@ -0,0 +1,982 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/charconv.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cmath>
>+#include <cstring>
>+
>+#include "absl/base/casts.h"
>+#include "absl/numeric/int128.h"
>+#include "absl/strings/internal/bits.h"
>+#include "absl/strings/internal/charconv_bigint.h"
>+#include "absl/strings/internal/charconv_parse.h"
>+
>+// The macro ABSL_BIT_PACK_FLOATS is defined on x86-64, where IEEE floating
>+// point numbers have the same endianness in memory as a bitfield struct
>+// containing the corresponding parts.
>+//
>+// When set, we replace calls to ldexp() with manual bit packing, which is
>+// faster and is unaffected by floating point environment.
>+#ifdef ABSL_BIT_PACK_FLOATS
>+#error ABSL_BIT_PACK_FLOATS cannot be directly set
>+#elif defined(__x86_64__) || defined(_M_X64)
>+#define ABSL_BIT_PACK_FLOATS 1
>+#endif
>+
>+// A note about subnormals:
>+//
>+// The code below talks about "normals" and "subnormals".  A normal IEEE float
>+// has a fixed-width mantissa and power of two exponent.  For example, a normal
>+// `double` has a 53-bit mantissa.  Because the high bit is always 1, it is not
>+// stored in the representation.  The implicit bit buys an extra bit of
>+// resolution in the datatype.
>+//
>+// The downside of this scheme is that there is a large gap between DBL_MIN and
>+// zero.  (Large, at least, relative to the different between DBL_MIN and the
>+// next representable number).  This gap is softened by the "subnormal" numbers,
>+// which have the same power-of-two exponent as DBL_MIN, but no implicit 53rd
>+// bit.  An all-bits-zero exponent in the encoding represents subnormals.  (Zero
>+// is represented as a subnormal with an all-bits-zero mantissa.)
>+//
>+// The code below, in calculations, represents the mantissa as a uint64_t.  The
>+// end result normally has the 53rd bit set.  It represents subnormals by using
>+// narrower mantissas.
>+
>+namespace absl {
>+namespace {
>+
>+template <typename FloatType>
>+struct FloatTraits;
>+
>+template <>
>+struct FloatTraits<double> {
>+  // The number of mantissa bits in the given float type.  This includes the
>+  // implied high bit.
>+  static constexpr int kTargetMantissaBits = 53;
>+
>+  // The largest supported IEEE exponent, in our integral mantissa
>+  // representation.
>+  //
>+  // If `m` is the largest possible int kTargetMantissaBits bits wide, then
>+  // m * 2**kMaxExponent is exactly equal to DBL_MAX.
>+  static constexpr int kMaxExponent = 971;
>+
>+  // The smallest supported IEEE normal exponent, in our integral mantissa
>+  // representation.
>+  //
>+  // If `m` is the smallest possible int kTargetMantissaBits bits wide, then
>+  // m * 2**kMinNormalExponent is exactly equal to DBL_MIN.
>+  static constexpr int kMinNormalExponent = -1074;
>+
>+  static double MakeNan(const char* tagp) {
>+    // Support nan no matter which namespace it's in.  Some platforms
>+    // incorrectly don't put it in namespace std.
>+    using namespace std;  // NOLINT
>+    return nan(tagp);
>+  }
>+
>+  // Builds a nonzero floating point number out of the provided parts.
>+  //
>+  // This is intended to do the same operation as ldexp(mantissa, exponent),
>+  // but using purely integer math, to avoid -ffastmath and floating
>+  // point environment issues.  Using type punning is also faster. We fall back
>+  // to ldexp on a per-platform basis for portability.
>+  //
>+  // `exponent` must be between kMinNormalExponent and kMaxExponent.
>+  //
>+  // `mantissa` must either be exactly kTargetMantissaBits wide, in which case
>+  // a normal value is made, or it must be less narrow than that, in which case
>+  // `exponent` must be exactly kMinNormalExponent, and a subnormal value is
>+  // made.
>+  static double Make(uint64_t mantissa, int exponent, bool sign) {
>+#ifndef ABSL_BIT_PACK_FLOATS
>+    // Support ldexp no matter which namespace it's in.  Some platforms
>+    // incorrectly don't put it in namespace std.
>+    using namespace std;  // NOLINT
>+    return sign ? -ldexp(mantissa, exponent) : ldexp(mantissa, exponent);
>+#else
>+    constexpr uint64_t kMantissaMask =
>+        (uint64_t(1) << (kTargetMantissaBits - 1)) - 1;
>+    uint64_t dbl = static_cast<uint64_t>(sign) << 63;
>+    if (mantissa > kMantissaMask) {
>+      // Normal value.
>+      // Adjust by 1023 for the exponent representation bias, and an additional
>+      // 52 due to the implied decimal point in the IEEE mantissa represenation.
>+      dbl += uint64_t{exponent + 1023u + kTargetMantissaBits - 1} << 52;
>+      mantissa &= kMantissaMask;
>+    } else {
>+      // subnormal value
>+      assert(exponent == kMinNormalExponent);
>+    }
>+    dbl += mantissa;
>+    return absl::bit_cast<double>(dbl);
>+#endif  // ABSL_BIT_PACK_FLOATS
>+  }
>+};
>+
>+// Specialization of floating point traits for the `float` type.  See the
>+// FloatTraits<double> specialization above for meaning of each of the following
>+// members and methods.
>+template <>
>+struct FloatTraits<float> {
>+  static constexpr int kTargetMantissaBits = 24;
>+  static constexpr int kMaxExponent = 104;
>+  static constexpr int kMinNormalExponent = -149;
>+  static float MakeNan(const char* tagp) {
>+    // Support nanf no matter which namespace it's in.  Some platforms
>+    // incorrectly don't put it in namespace std.
>+    using namespace std;  // NOLINT
>+    return nanf(tagp);
>+  }
>+  static float Make(uint32_t mantissa, int exponent, bool sign) {
>+#ifndef ABSL_BIT_PACK_FLOATS
>+    // Support ldexpf no matter which namespace it's in.  Some platforms
>+    // incorrectly don't put it in namespace std.
>+    using namespace std;  // NOLINT
>+    return sign ? -ldexpf(mantissa, exponent) : ldexpf(mantissa, exponent);
>+#else
>+    constexpr uint32_t kMantissaMask =
>+        (uint32_t(1) << (kTargetMantissaBits - 1)) - 1;
>+    uint32_t flt = static_cast<uint32_t>(sign) << 31;
>+    if (mantissa > kMantissaMask) {
>+      // Normal value.
>+      // Adjust by 127 for the exponent representation bias, and an additional
>+      // 23 due to the implied decimal point in the IEEE mantissa represenation.
>+      flt += uint32_t{exponent + 127u + kTargetMantissaBits - 1} << 23;
>+      mantissa &= kMantissaMask;
>+    } else {
>+      // subnormal value
>+      assert(exponent == kMinNormalExponent);
>+    }
>+    flt += mantissa;
>+    return absl::bit_cast<float>(flt);
>+#endif  // ABSL_BIT_PACK_FLOATS
>+  }
>+};
>+
>+// Decimal-to-binary conversions require coercing powers of 10 into a mantissa
>+// and a power of 2.  The two helper functions Power10Mantissa(n) and
>+// Power10Exponent(n) perform this task.  Together, these represent a hand-
>+// rolled floating point value which is equal to or just less than 10**n.
>+//
>+// The return values satisfy two range guarantees:
>+//
>+//   Power10Mantissa(n) * 2**Power10Exponent(n) <= 10**n
>+//     < (Power10Mantissa(n) + 1) * 2**Power10Exponent(n)
>+//
>+//   2**63 <= Power10Mantissa(n) < 2**64.
>+//
>+// Lookups into the power-of-10 table must first check the Power10Overflow() and
>+// Power10Underflow() functions, to avoid out-of-bounds table access.
>+//
>+// Indexes into these tables are biased by -kPower10TableMin, and the table has
>+// values in the range [kPower10TableMin, kPower10TableMax].
>+extern const uint64_t kPower10MantissaTable[];
>+extern const int16_t kPower10ExponentTable[];
>+
>+// The smallest allowed value for use with the Power10Mantissa() and
>+// Power10Exponent() functions below.  (If a smaller exponent is needed in
>+// calculations, the end result is guaranteed to underflow.)
>+constexpr int kPower10TableMin = -342;
>+
>+// The largest allowed value for use with the Power10Mantissa() and
>+// Power10Exponent() functions below.  (If a smaller exponent is needed in
>+// calculations, the end result is guaranteed to overflow.)
>+constexpr int kPower10TableMax = 308;
>+
>+uint64_t Power10Mantissa(int n) {
>+  return kPower10MantissaTable[n - kPower10TableMin];
>+}
>+
>+int Power10Exponent(int n) {
>+  return kPower10ExponentTable[n - kPower10TableMin];
>+}
>+
>+// Returns true if n is large enough that 10**n always results in an IEEE
>+// overflow.
>+bool Power10Overflow(int n) { return n > kPower10TableMax; }
>+
>+// Returns true if n is small enough that 10**n times a ParsedFloat mantissa
>+// always results in an IEEE underflow.
>+bool Power10Underflow(int n) { return n < kPower10TableMin; }
>+
>+// Returns true if Power10Mantissa(n) * 2**Power10Exponent(n) is exactly equal
>+// to 10**n numerically.  Put another way, this returns true if there is no
>+// truncation error in Power10Mantissa(n).
>+bool Power10Exact(int n) { return n >= 0 && n <= 27; }
>+
>+// Sentinel exponent values for representing numbers too large or too close to
>+// zero to represent in a double.
>+constexpr int kOverflow = 99999;
>+constexpr int kUnderflow = -99999;
>+
>+// Struct representing the calculated conversion result of a positive (nonzero)
>+// floating point number.
>+//
>+// The calculated number is mantissa * 2**exponent (mantissa is treated as an
>+// integer.)  `mantissa` is chosen to be the correct width for the IEEE float
>+// representation being calculated.  (`mantissa` will always have the same bit
>+// width for normal values, and narrower bit widths for subnormals.)
>+//
>+// If the result of conversion was an underflow or overflow, exponent is set
>+// to kUnderflow or kOverflow.
>+struct CalculatedFloat {
>+  uint64_t mantissa = 0;
>+  int exponent = 0;
>+};
>+
>+// Returns the bit width of the given uint128.  (Equivalently, returns 128
>+// minus the number of leading zero bits.)
>+int BitWidth(uint128 value) {
>+  if (Uint128High64(value) == 0) {
>+    return 64 - strings_internal::CountLeadingZeros64(Uint128Low64(value));
>+  }
>+  return 128 - strings_internal::CountLeadingZeros64(Uint128High64(value));
>+}
>+
>+// Calculates how far to the right a mantissa needs to be shifted to create a
>+// properly adjusted mantissa for an IEEE floating point number.
>+//
>+// `mantissa_width` is the bit width of the mantissa to be shifted, and
>+// `binary_exponent` is the exponent of the number before the shift.
>+//
>+// This accounts for subnormal values, and will return a larger-than-normal
>+// shift if binary_exponent would otherwise be too low.
>+template <typename FloatType>
>+int NormalizedShiftSize(int mantissa_width, int binary_exponent) {
>+  const int normal_shift =
>+      mantissa_width - FloatTraits<FloatType>::kTargetMantissaBits;
>+  const int minimum_shift =
>+      FloatTraits<FloatType>::kMinNormalExponent - binary_exponent;
>+  return std::max(normal_shift, minimum_shift);
>+}
>+
>+// Right shifts a uint128 so that it has the requested bit width.  (The
>+// resulting value will have 128 - bit_width leading zeroes.)  The initial
>+// `value` must be wider than the requested bit width.
>+//
>+// Returns the number of bits shifted.
>+int TruncateToBitWidth(int bit_width, uint128* value) {
>+  const int current_bit_width = BitWidth(*value);
>+  const int shift = current_bit_width - bit_width;
>+  *value >>= shift;
>+  return shift;
>+}
>+
>+// Checks if the given ParsedFloat represents one of the edge cases that are
>+// not dependent on number base: zero, infinity, or NaN.  If so, sets *value
>+// the appropriate double, and returns true.
>+template <typename FloatType>
>+bool HandleEdgeCase(const strings_internal::ParsedFloat& input, bool negative,
>+                    FloatType* value) {
>+  if (input.type == strings_internal::FloatType::kNan) {
>+    // A bug in both clang and gcc would cause the compiler to optimize away the
>+    // buffer we are building below.  Declaring the buffer volatile avoids the
>+    // issue, and has no measurable performance impact in microbenchmarks.
>+    //
>+    // https://bugs.llvm.org/show_bug.cgi?id=37778
>+    // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86113
>+    constexpr ptrdiff_t kNanBufferSize = 128;
>+    volatile char n_char_sequence[kNanBufferSize];
>+    if (input.subrange_begin == nullptr) {
>+      n_char_sequence[0] = '\0';
>+    } else {
>+      ptrdiff_t nan_size = input.subrange_end - input.subrange_begin;
>+      nan_size = std::min(nan_size, kNanBufferSize - 1);
>+      std::copy_n(input.subrange_begin, nan_size, n_char_sequence);
>+      n_char_sequence[nan_size] = '\0';
>+    }
>+    char* nan_argument = const_cast<char*>(n_char_sequence);
>+    *value = negative ? -FloatTraits<FloatType>::MakeNan(nan_argument)
>+                      : FloatTraits<FloatType>::MakeNan(nan_argument);
>+    return true;
>+  }
>+  if (input.type == strings_internal::FloatType::kInfinity) {
>+    *value = negative ? -std::numeric_limits<FloatType>::infinity()
>+                      : std::numeric_limits<FloatType>::infinity();
>+    return true;
>+  }
>+  if (input.mantissa == 0) {
>+    *value = negative ? -0.0 : 0.0;
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// Given a CalculatedFloat result of a from_chars conversion, generate the
>+// correct output values.
>+//
>+// CalculatedFloat can represent an underflow or overflow, in which case the
>+// error code in *result is set.  Otherwise, the calculated floating point
>+// number is stored in *value.
>+template <typename FloatType>
>+void EncodeResult(const CalculatedFloat& calculated, bool negative,
>+                  absl::from_chars_result* result, FloatType* value) {
>+  if (calculated.exponent == kOverflow) {
>+    result->ec = std::errc::result_out_of_range;
>+    *value = negative ? -std::numeric_limits<FloatType>::max()
>+                      : std::numeric_limits<FloatType>::max();
>+    return;
>+  } else if (calculated.mantissa == 0 || calculated.exponent == kUnderflow) {
>+    result->ec = std::errc::result_out_of_range;
>+    *value = negative ? -0.0 : 0.0;
>+    return;
>+  }
>+  *value = FloatTraits<FloatType>::Make(calculated.mantissa,
>+                                        calculated.exponent, negative);
>+}
>+
>+// Returns the given uint128 shifted to the right by `shift` bits, and rounds
>+// the remaining bits using round_to_nearest logic.  The value is returned as a
>+// uint64_t, since this is the type used by this library for storing calculated
>+// floating point mantissas.
>+//
>+// It is expected that the width of the input value shifted by `shift` will
>+// be the correct bit-width for the target mantissa, which is strictly narrower
>+// than a uint64_t.
>+//
>+// If `input_exact` is false, then a nonzero error epsilon is assumed.  For
>+// rounding purposes, the true value being rounded is strictly greater than the
>+// input value.  The error may represent a single lost carry bit.
>+//
>+// When input_exact, shifted bits of the form 1000000... represent a tie, which
>+// is broken by rounding to even -- the rounding direction is chosen so the low
>+// bit of the returned value is 0.
>+//
>+// When !input_exact, shifted bits of the form 10000000... represent a value
>+// strictly greater than one half (due to the error epsilon), and so ties are
>+// always broken by rounding up.
>+//
>+// When !input_exact, shifted bits of the form 01111111... are uncertain;
>+// the true value may or may not be greater than 10000000..., due to the
>+// possible lost carry bit.  The correct rounding direction is unknown.  In this
>+// case, the result is rounded down, and `output_exact` is set to false.
>+//
>+// Zero and negative values of `shift` are accepted, in which case the word is
>+// shifted left, as necessary.
>+uint64_t ShiftRightAndRound(uint128 value, int shift, bool input_exact,
>+                            bool* output_exact) {
>+  if (shift <= 0) {
>+    *output_exact = input_exact;
>+    return static_cast<uint64_t>(value << -shift);
>+  }
>+  if (shift >= 128) {
>+    // Exponent is so small that we are shifting away all significant bits.
>+    // Answer will not be representable, even as a subnormal, so return a zero
>+    // mantissa (which represents underflow).
>+    *output_exact = true;
>+    return 0;
>+  }
>+
>+  *output_exact = true;
>+  const uint128 shift_mask = (uint128(1) << shift) - 1;
>+  const uint128 halfway_point = uint128(1) << (shift - 1);
>+
>+  const uint128 shifted_bits = value & shift_mask;
>+  value >>= shift;
>+  if (shifted_bits > halfway_point) {
>+    // Shifted bits greater than 10000... require rounding up.
>+    return static_cast<uint64_t>(value + 1);
>+  }
>+  if (shifted_bits == halfway_point) {
>+    // In exact mode, shifted bits of 10000... mean we're exactly halfway
>+    // between two numbers, and we must round to even.  So only round up if
>+    // the low bit of `value` is set.
>+    //
>+    // In inexact mode, the nonzero error means the actual value is greater
>+    // than the halfway point and we must alway round up.
>+    if ((value & 1) == 1 || !input_exact) {
>+      ++value;
>+    }
>+    return static_cast<uint64_t>(value);
>+  }
>+  if (!input_exact && shifted_bits == halfway_point - 1) {
>+    // Rounding direction is unclear, due to error.
>+    *output_exact = false;
>+  }
>+  // Otherwise, round down.
>+  return static_cast<uint64_t>(value);
>+}
>+
>+// Checks if a floating point guess needs to be rounded up, using high precision
>+// math.
>+//
>+// `guess_mantissa` and `guess_exponent` represent a candidate guess for the
>+// number represented by `parsed_decimal`.
>+//
>+// The exact number represented by `parsed_decimal` must lie between the two
>+// numbers:
>+//   A = `guess_mantissa * 2**guess_exponent`
>+//   B = `(guess_mantissa + 1) * 2**guess_exponent`
>+//
>+// This function returns false if `A` is the better guess, and true if `B` is
>+// the better guess, with rounding ties broken by rounding to even.
>+bool MustRoundUp(uint64_t guess_mantissa, int guess_exponent,
>+                 const strings_internal::ParsedFloat& parsed_decimal) {
>+  // 768 is the number of digits needed in the worst case.  We could determine a
>+  // better limit dynamically based on the value of parsed_decimal.exponent.
>+  // This would optimize pathological input cases only.  (Sane inputs won't have
>+  // hundreds of digits of mantissa.)
>+  absl::strings_internal::BigUnsigned<84> exact_mantissa;
>+  int exact_exponent = exact_mantissa.ReadFloatMantissa(parsed_decimal, 768);
>+
>+  // Adjust the `guess` arguments to be halfway between A and B.
>+  guess_mantissa = guess_mantissa * 2 + 1;
>+  guess_exponent -= 1;
>+
>+  // In our comparison:
>+  // lhs = exact = exact_mantissa * 10**exact_exponent
>+  //             = exact_mantissa * 5**exact_exponent * 2**exact_exponent
>+  // rhs = guess = guess_mantissa * 2**guess_exponent
>+  //
>+  // Because we are doing integer math, we can't directly deal with negative
>+  // exponents.  We instead move these to the other side of the inequality.
>+  absl::strings_internal::BigUnsigned<84>& lhs = exact_mantissa;
>+  int comparison;
>+  if (exact_exponent >= 0) {
>+    lhs.MultiplyByFiveToTheNth(exact_exponent);
>+    absl::strings_internal::BigUnsigned<84> rhs(guess_mantissa);
>+    // There are powers of 2 on both sides of the inequality; reduce this to
>+    // a single bit-shift.
>+    if (exact_exponent > guess_exponent) {
>+      lhs.ShiftLeft(exact_exponent - guess_exponent);
>+    } else {
>+      rhs.ShiftLeft(guess_exponent - exact_exponent);
>+    }
>+    comparison = Compare(lhs, rhs);
>+  } else {
>+    // Move the power of 5 to the other side of the equation, giving us:
>+    // lhs = exact_mantissa * 2**exact_exponent
>+    // rhs = guess_mantissa * 5**(-exact_exponent) * 2**guess_exponent
>+    absl::strings_internal::BigUnsigned<84> rhs =
>+        absl::strings_internal::BigUnsigned<84>::FiveToTheNth(-exact_exponent);
>+    rhs.MultiplyBy(guess_mantissa);
>+    if (exact_exponent > guess_exponent) {
>+      lhs.ShiftLeft(exact_exponent - guess_exponent);
>+    } else {
>+      rhs.ShiftLeft(guess_exponent - exact_exponent);
>+    }
>+    comparison = Compare(lhs, rhs);
>+  }
>+  if (comparison < 0) {
>+    return false;
>+  } else if (comparison > 0) {
>+    return true;
>+  } else {
>+    // When lhs == rhs, the decimal input is exactly between A and B.
>+    // Round towards even -- round up only if the low bit of the initial
>+    // `guess_mantissa` was a 1.  We shifted guess_mantissa left 1 bit at
>+    // the beginning of this function, so test the 2nd bit here.
>+    return (guess_mantissa & 2) == 2;
>+  }
>+}
>+
>+// Constructs a CalculatedFloat from a given mantissa and exponent, but
>+// with the following normalizations applied:
>+//
>+// If rounding has caused mantissa to increase just past the allowed bit
>+// width, shift and adjust exponent.
>+//
>+// If exponent is too high, sets kOverflow.
>+//
>+// If mantissa is zero (representing a non-zero value not representable, even
>+// as a subnormal), sets kUnderflow.
>+template <typename FloatType>
>+CalculatedFloat CalculatedFloatFromRawValues(uint64_t mantissa, int exponent) {
>+  CalculatedFloat result;
>+  if (mantissa == uint64_t(1) << FloatTraits<FloatType>::kTargetMantissaBits) {
>+    mantissa >>= 1;
>+    exponent += 1;
>+  }
>+  if (exponent > FloatTraits<FloatType>::kMaxExponent) {
>+    result.exponent = kOverflow;
>+  } else if (mantissa == 0) {
>+    result.exponent = kUnderflow;
>+  } else {
>+    result.exponent = exponent;
>+    result.mantissa = mantissa;
>+  }
>+  return result;
>+}
>+
>+template <typename FloatType>
>+CalculatedFloat CalculateFromParsedHexadecimal(
>+    const strings_internal::ParsedFloat& parsed_hex) {
>+  uint64_t mantissa = parsed_hex.mantissa;
>+  int exponent = parsed_hex.exponent;
>+  int mantissa_width = 64 - strings_internal::CountLeadingZeros64(mantissa);
>+  const int shift = NormalizedShiftSize<FloatType>(mantissa_width, exponent);
>+  bool result_exact;
>+  exponent += shift;
>+  mantissa = ShiftRightAndRound(mantissa, shift,
>+                                /* input exact= */ true, &result_exact);
>+  // ParseFloat handles rounding in the hexadecimal case, so we don't have to
>+  // check `result_exact` here.
>+  return CalculatedFloatFromRawValues<FloatType>(mantissa, exponent);
>+}
>+
>+template <typename FloatType>
>+CalculatedFloat CalculateFromParsedDecimal(
>+    const strings_internal::ParsedFloat& parsed_decimal) {
>+  CalculatedFloat result;
>+
>+  // Large or small enough decimal exponents will always result in overflow
>+  // or underflow.
>+  if (Power10Underflow(parsed_decimal.exponent)) {
>+    result.exponent = kUnderflow;
>+    return result;
>+  } else if (Power10Overflow(parsed_decimal.exponent)) {
>+    result.exponent = kOverflow;
>+    return result;
>+  }
>+
>+  // Otherwise convert our power of 10 into a power of 2 times an integer
>+  // mantissa, and multiply this by our parsed decimal mantissa.
>+  uint128 wide_binary_mantissa = parsed_decimal.mantissa;
>+  wide_binary_mantissa *= Power10Mantissa(parsed_decimal.exponent);
>+  int binary_exponent = Power10Exponent(parsed_decimal.exponent);
>+
>+  // Discard bits that are inaccurate due to truncation error.  The magic
>+  // `mantissa_width` constants below are justified in charconv_algorithm.md.
>+  // They represent the number of bits in `wide_binary_mantissa` that are
>+  // guaranteed to be unaffected by error propagation.
>+  bool mantissa_exact;
>+  int mantissa_width;
>+  if (parsed_decimal.subrange_begin) {
>+    // Truncated mantissa
>+    mantissa_width = 58;
>+    mantissa_exact = false;
>+    binary_exponent +=
>+        TruncateToBitWidth(mantissa_width, &wide_binary_mantissa);
>+  } else if (!Power10Exact(parsed_decimal.exponent)) {
>+    // Exact mantissa, truncated power of ten
>+    mantissa_width = 63;
>+    mantissa_exact = false;
>+    binary_exponent +=
>+        TruncateToBitWidth(mantissa_width, &wide_binary_mantissa);
>+  } else {
>+    // Product is exact
>+    mantissa_width = BitWidth(wide_binary_mantissa);
>+    mantissa_exact = true;
>+  }
>+
>+  // Shift into an FloatType-sized mantissa, and round to nearest.
>+  const int shift =
>+      NormalizedShiftSize<FloatType>(mantissa_width, binary_exponent);
>+  bool result_exact;
>+  binary_exponent += shift;
>+  uint64_t binary_mantissa = ShiftRightAndRound(wide_binary_mantissa, shift,
>+                                                mantissa_exact, &result_exact);
>+  if (!result_exact) {
>+    // We could not determine the rounding direction using int128 math.  Use
>+    // full resolution math instead.
>+    if (MustRoundUp(binary_mantissa, binary_exponent, parsed_decimal)) {
>+      binary_mantissa += 1;
>+    }
>+  }
>+
>+  return CalculatedFloatFromRawValues<FloatType>(binary_mantissa,
>+                                                 binary_exponent);
>+}
>+
>+template <typename FloatType>
>+from_chars_result FromCharsImpl(const char* first, const char* last,
>+                                FloatType& value, chars_format fmt_flags) {
>+  from_chars_result result;
>+  result.ptr = first;  // overwritten on successful parse
>+  result.ec = std::errc();
>+
>+  bool negative = false;
>+  if (first != last && *first == '-') {
>+    ++first;
>+    negative = true;
>+  }
>+  // If the `hex` flag is *not* set, then we will accept a 0x prefix and try
>+  // to parse a hexadecimal float.
>+  if ((fmt_flags & chars_format::hex) == chars_format{} && last - first >= 2 &&
>+      *first == '0' && (first[1] == 'x' || first[1] == 'X')) {
>+    const char* hex_first = first + 2;
>+    strings_internal::ParsedFloat hex_parse =
>+        strings_internal::ParseFloat<16>(hex_first, last, fmt_flags);
>+    if (hex_parse.end == nullptr ||
>+        hex_parse.type != strings_internal::FloatType::kNumber) {
>+      // Either we failed to parse a hex float after the "0x", or we read
>+      // "0xinf" or "0xnan" which we don't want to match.
>+      //
>+      // However, a std::string that begins with "0x" also begins with "0", which
>+      // is normally a valid match for the number zero.  So we want these
>+      // strings to match zero unless fmt_flags is `scientific`.  (This flag
>+      // means an exponent is required, which the std::string "0" does not have.)
>+      if (fmt_flags == chars_format::scientific) {
>+        result.ec = std::errc::invalid_argument;
>+      } else {
>+        result.ptr = first + 1;
>+        value = negative ? -0.0 : 0.0;
>+      }
>+      return result;
>+    }
>+    // We matched a value.
>+    result.ptr = hex_parse.end;
>+    if (HandleEdgeCase(hex_parse, negative, &value)) {
>+      return result;
>+    }
>+    CalculatedFloat calculated =
>+        CalculateFromParsedHexadecimal<FloatType>(hex_parse);
>+    EncodeResult(calculated, negative, &result, &value);
>+    return result;
>+  }
>+  // Otherwise, we choose the number base based on the flags.
>+  if ((fmt_flags & chars_format::hex) == chars_format::hex) {
>+    strings_internal::ParsedFloat hex_parse =
>+        strings_internal::ParseFloat<16>(first, last, fmt_flags);
>+    if (hex_parse.end == nullptr) {
>+      result.ec = std::errc::invalid_argument;
>+      return result;
>+    }
>+    result.ptr = hex_parse.end;
>+    if (HandleEdgeCase(hex_parse, negative, &value)) {
>+      return result;
>+    }
>+    CalculatedFloat calculated =
>+        CalculateFromParsedHexadecimal<FloatType>(hex_parse);
>+    EncodeResult(calculated, negative, &result, &value);
>+    return result;
>+  } else {
>+    strings_internal::ParsedFloat decimal_parse =
>+        strings_internal::ParseFloat<10>(first, last, fmt_flags);
>+    if (decimal_parse.end == nullptr) {
>+      result.ec = std::errc::invalid_argument;
>+      return result;
>+    }
>+    result.ptr = decimal_parse.end;
>+    if (HandleEdgeCase(decimal_parse, negative, &value)) {
>+      return result;
>+    }
>+    CalculatedFloat calculated =
>+        CalculateFromParsedDecimal<FloatType>(decimal_parse);
>+    EncodeResult(calculated, negative, &result, &value);
>+    return result;
>+  }
>+  return result;
>+}
>+}  // namespace
>+
>+from_chars_result from_chars(const char* first, const char* last, double& value,
>+                             chars_format fmt) {
>+  return FromCharsImpl(first, last, value, fmt);
>+}
>+
>+from_chars_result from_chars(const char* first, const char* last, float& value,
>+                             chars_format fmt) {
>+  return FromCharsImpl(first, last, value, fmt);
>+}
>+
>+namespace {
>+
>+// Table of powers of 10, from kPower10TableMin to kPower10TableMax.
>+//
>+// kPower10MantissaTable[i - kPower10TableMin] stores the 64-bit mantissa (high
>+// bit always on), and kPower10ExponentTable[i - kPower10TableMin] stores the
>+// power-of-two exponent.  For a given number i, this gives the unique mantissa
>+// and exponent such that mantissa * 2**exponent <= 10**i < (mantissa + 1) *
>+// 2**exponent.
>+
>+const uint64_t kPower10MantissaTable[] = {
>+    0xeef453d6923bd65aU, 0x9558b4661b6565f8U, 0xbaaee17fa23ebf76U,
>+    0xe95a99df8ace6f53U, 0x91d8a02bb6c10594U, 0xb64ec836a47146f9U,
>+    0xe3e27a444d8d98b7U, 0x8e6d8c6ab0787f72U, 0xb208ef855c969f4fU,
>+    0xde8b2b66b3bc4723U, 0x8b16fb203055ac76U, 0xaddcb9e83c6b1793U,
>+    0xd953e8624b85dd78U, 0x87d4713d6f33aa6bU, 0xa9c98d8ccb009506U,
>+    0xd43bf0effdc0ba48U, 0x84a57695fe98746dU, 0xa5ced43b7e3e9188U,
>+    0xcf42894a5dce35eaU, 0x818995ce7aa0e1b2U, 0xa1ebfb4219491a1fU,
>+    0xca66fa129f9b60a6U, 0xfd00b897478238d0U, 0x9e20735e8cb16382U,
>+    0xc5a890362fddbc62U, 0xf712b443bbd52b7bU, 0x9a6bb0aa55653b2dU,
>+    0xc1069cd4eabe89f8U, 0xf148440a256e2c76U, 0x96cd2a865764dbcaU,
>+    0xbc807527ed3e12bcU, 0xeba09271e88d976bU, 0x93445b8731587ea3U,
>+    0xb8157268fdae9e4cU, 0xe61acf033d1a45dfU, 0x8fd0c16206306babU,
>+    0xb3c4f1ba87bc8696U, 0xe0b62e2929aba83cU, 0x8c71dcd9ba0b4925U,
>+    0xaf8e5410288e1b6fU, 0xdb71e91432b1a24aU, 0x892731ac9faf056eU,
>+    0xab70fe17c79ac6caU, 0xd64d3d9db981787dU, 0x85f0468293f0eb4eU,
>+    0xa76c582338ed2621U, 0xd1476e2c07286faaU, 0x82cca4db847945caU,
>+    0xa37fce126597973cU, 0xcc5fc196fefd7d0cU, 0xff77b1fcbebcdc4fU,
>+    0x9faacf3df73609b1U, 0xc795830d75038c1dU, 0xf97ae3d0d2446f25U,
>+    0x9becce62836ac577U, 0xc2e801fb244576d5U, 0xf3a20279ed56d48aU,
>+    0x9845418c345644d6U, 0xbe5691ef416bd60cU, 0xedec366b11c6cb8fU,
>+    0x94b3a202eb1c3f39U, 0xb9e08a83a5e34f07U, 0xe858ad248f5c22c9U,
>+    0x91376c36d99995beU, 0xb58547448ffffb2dU, 0xe2e69915b3fff9f9U,
>+    0x8dd01fad907ffc3bU, 0xb1442798f49ffb4aU, 0xdd95317f31c7fa1dU,
>+    0x8a7d3eef7f1cfc52U, 0xad1c8eab5ee43b66U, 0xd863b256369d4a40U,
>+    0x873e4f75e2224e68U, 0xa90de3535aaae202U, 0xd3515c2831559a83U,
>+    0x8412d9991ed58091U, 0xa5178fff668ae0b6U, 0xce5d73ff402d98e3U,
>+    0x80fa687f881c7f8eU, 0xa139029f6a239f72U, 0xc987434744ac874eU,
>+    0xfbe9141915d7a922U, 0x9d71ac8fada6c9b5U, 0xc4ce17b399107c22U,
>+    0xf6019da07f549b2bU, 0x99c102844f94e0fbU, 0xc0314325637a1939U,
>+    0xf03d93eebc589f88U, 0x96267c7535b763b5U, 0xbbb01b9283253ca2U,
>+    0xea9c227723ee8bcbU, 0x92a1958a7675175fU, 0xb749faed14125d36U,
>+    0xe51c79a85916f484U, 0x8f31cc0937ae58d2U, 0xb2fe3f0b8599ef07U,
>+    0xdfbdcece67006ac9U, 0x8bd6a141006042bdU, 0xaecc49914078536dU,
>+    0xda7f5bf590966848U, 0x888f99797a5e012dU, 0xaab37fd7d8f58178U,
>+    0xd5605fcdcf32e1d6U, 0x855c3be0a17fcd26U, 0xa6b34ad8c9dfc06fU,
>+    0xd0601d8efc57b08bU, 0x823c12795db6ce57U, 0xa2cb1717b52481edU,
>+    0xcb7ddcdda26da268U, 0xfe5d54150b090b02U, 0x9efa548d26e5a6e1U,
>+    0xc6b8e9b0709f109aU, 0xf867241c8cc6d4c0U, 0x9b407691d7fc44f8U,
>+    0xc21094364dfb5636U, 0xf294b943e17a2bc4U, 0x979cf3ca6cec5b5aU,
>+    0xbd8430bd08277231U, 0xece53cec4a314ebdU, 0x940f4613ae5ed136U,
>+    0xb913179899f68584U, 0xe757dd7ec07426e5U, 0x9096ea6f3848984fU,
>+    0xb4bca50b065abe63U, 0xe1ebce4dc7f16dfbU, 0x8d3360f09cf6e4bdU,
>+    0xb080392cc4349decU, 0xdca04777f541c567U, 0x89e42caaf9491b60U,
>+    0xac5d37d5b79b6239U, 0xd77485cb25823ac7U, 0x86a8d39ef77164bcU,
>+    0xa8530886b54dbdebU, 0xd267caa862a12d66U, 0x8380dea93da4bc60U,
>+    0xa46116538d0deb78U, 0xcd795be870516656U, 0x806bd9714632dff6U,
>+    0xa086cfcd97bf97f3U, 0xc8a883c0fdaf7df0U, 0xfad2a4b13d1b5d6cU,
>+    0x9cc3a6eec6311a63U, 0xc3f490aa77bd60fcU, 0xf4f1b4d515acb93bU,
>+    0x991711052d8bf3c5U, 0xbf5cd54678eef0b6U, 0xef340a98172aace4U,
>+    0x9580869f0e7aac0eU, 0xbae0a846d2195712U, 0xe998d258869facd7U,
>+    0x91ff83775423cc06U, 0xb67f6455292cbf08U, 0xe41f3d6a7377eecaU,
>+    0x8e938662882af53eU, 0xb23867fb2a35b28dU, 0xdec681f9f4c31f31U,
>+    0x8b3c113c38f9f37eU, 0xae0b158b4738705eU, 0xd98ddaee19068c76U,
>+    0x87f8a8d4cfa417c9U, 0xa9f6d30a038d1dbcU, 0xd47487cc8470652bU,
>+    0x84c8d4dfd2c63f3bU, 0xa5fb0a17c777cf09U, 0xcf79cc9db955c2ccU,
>+    0x81ac1fe293d599bfU, 0xa21727db38cb002fU, 0xca9cf1d206fdc03bU,
>+    0xfd442e4688bd304aU, 0x9e4a9cec15763e2eU, 0xc5dd44271ad3cdbaU,
>+    0xf7549530e188c128U, 0x9a94dd3e8cf578b9U, 0xc13a148e3032d6e7U,
>+    0xf18899b1bc3f8ca1U, 0x96f5600f15a7b7e5U, 0xbcb2b812db11a5deU,
>+    0xebdf661791d60f56U, 0x936b9fcebb25c995U, 0xb84687c269ef3bfbU,
>+    0xe65829b3046b0afaU, 0x8ff71a0fe2c2e6dcU, 0xb3f4e093db73a093U,
>+    0xe0f218b8d25088b8U, 0x8c974f7383725573U, 0xafbd2350644eeacfU,
>+    0xdbac6c247d62a583U, 0x894bc396ce5da772U, 0xab9eb47c81f5114fU,
>+    0xd686619ba27255a2U, 0x8613fd0145877585U, 0xa798fc4196e952e7U,
>+    0xd17f3b51fca3a7a0U, 0x82ef85133de648c4U, 0xa3ab66580d5fdaf5U,
>+    0xcc963fee10b7d1b3U, 0xffbbcfe994e5c61fU, 0x9fd561f1fd0f9bd3U,
>+    0xc7caba6e7c5382c8U, 0xf9bd690a1b68637bU, 0x9c1661a651213e2dU,
>+    0xc31bfa0fe5698db8U, 0xf3e2f893dec3f126U, 0x986ddb5c6b3a76b7U,
>+    0xbe89523386091465U, 0xee2ba6c0678b597fU, 0x94db483840b717efU,
>+    0xba121a4650e4ddebU, 0xe896a0d7e51e1566U, 0x915e2486ef32cd60U,
>+    0xb5b5ada8aaff80b8U, 0xe3231912d5bf60e6U, 0x8df5efabc5979c8fU,
>+    0xb1736b96b6fd83b3U, 0xddd0467c64bce4a0U, 0x8aa22c0dbef60ee4U,
>+    0xad4ab7112eb3929dU, 0xd89d64d57a607744U, 0x87625f056c7c4a8bU,
>+    0xa93af6c6c79b5d2dU, 0xd389b47879823479U, 0x843610cb4bf160cbU,
>+    0xa54394fe1eedb8feU, 0xce947a3da6a9273eU, 0x811ccc668829b887U,
>+    0xa163ff802a3426a8U, 0xc9bcff6034c13052U, 0xfc2c3f3841f17c67U,
>+    0x9d9ba7832936edc0U, 0xc5029163f384a931U, 0xf64335bcf065d37dU,
>+    0x99ea0196163fa42eU, 0xc06481fb9bcf8d39U, 0xf07da27a82c37088U,
>+    0x964e858c91ba2655U, 0xbbe226efb628afeaU, 0xeadab0aba3b2dbe5U,
>+    0x92c8ae6b464fc96fU, 0xb77ada0617e3bbcbU, 0xe55990879ddcaabdU,
>+    0x8f57fa54c2a9eab6U, 0xb32df8e9f3546564U, 0xdff9772470297ebdU,
>+    0x8bfbea76c619ef36U, 0xaefae51477a06b03U, 0xdab99e59958885c4U,
>+    0x88b402f7fd75539bU, 0xaae103b5fcd2a881U, 0xd59944a37c0752a2U,
>+    0x857fcae62d8493a5U, 0xa6dfbd9fb8e5b88eU, 0xd097ad07a71f26b2U,
>+    0x825ecc24c873782fU, 0xa2f67f2dfa90563bU, 0xcbb41ef979346bcaU,
>+    0xfea126b7d78186bcU, 0x9f24b832e6b0f436U, 0xc6ede63fa05d3143U,
>+    0xf8a95fcf88747d94U, 0x9b69dbe1b548ce7cU, 0xc24452da229b021bU,
>+    0xf2d56790ab41c2a2U, 0x97c560ba6b0919a5U, 0xbdb6b8e905cb600fU,
>+    0xed246723473e3813U, 0x9436c0760c86e30bU, 0xb94470938fa89bceU,
>+    0xe7958cb87392c2c2U, 0x90bd77f3483bb9b9U, 0xb4ecd5f01a4aa828U,
>+    0xe2280b6c20dd5232U, 0x8d590723948a535fU, 0xb0af48ec79ace837U,
>+    0xdcdb1b2798182244U, 0x8a08f0f8bf0f156bU, 0xac8b2d36eed2dac5U,
>+    0xd7adf884aa879177U, 0x86ccbb52ea94baeaU, 0xa87fea27a539e9a5U,
>+    0xd29fe4b18e88640eU, 0x83a3eeeef9153e89U, 0xa48ceaaab75a8e2bU,
>+    0xcdb02555653131b6U, 0x808e17555f3ebf11U, 0xa0b19d2ab70e6ed6U,
>+    0xc8de047564d20a8bU, 0xfb158592be068d2eU, 0x9ced737bb6c4183dU,
>+    0xc428d05aa4751e4cU, 0xf53304714d9265dfU, 0x993fe2c6d07b7fabU,
>+    0xbf8fdb78849a5f96U, 0xef73d256a5c0f77cU, 0x95a8637627989aadU,
>+    0xbb127c53b17ec159U, 0xe9d71b689dde71afU, 0x9226712162ab070dU,
>+    0xb6b00d69bb55c8d1U, 0xe45c10c42a2b3b05U, 0x8eb98a7a9a5b04e3U,
>+    0xb267ed1940f1c61cU, 0xdf01e85f912e37a3U, 0x8b61313bbabce2c6U,
>+    0xae397d8aa96c1b77U, 0xd9c7dced53c72255U, 0x881cea14545c7575U,
>+    0xaa242499697392d2U, 0xd4ad2dbfc3d07787U, 0x84ec3c97da624ab4U,
>+    0xa6274bbdd0fadd61U, 0xcfb11ead453994baU, 0x81ceb32c4b43fcf4U,
>+    0xa2425ff75e14fc31U, 0xcad2f7f5359a3b3eU, 0xfd87b5f28300ca0dU,
>+    0x9e74d1b791e07e48U, 0xc612062576589ddaU, 0xf79687aed3eec551U,
>+    0x9abe14cd44753b52U, 0xc16d9a0095928a27U, 0xf1c90080baf72cb1U,
>+    0x971da05074da7beeU, 0xbce5086492111aeaU, 0xec1e4a7db69561a5U,
>+    0x9392ee8e921d5d07U, 0xb877aa3236a4b449U, 0xe69594bec44de15bU,
>+    0x901d7cf73ab0acd9U, 0xb424dc35095cd80fU, 0xe12e13424bb40e13U,
>+    0x8cbccc096f5088cbU, 0xafebff0bcb24aafeU, 0xdbe6fecebdedd5beU,
>+    0x89705f4136b4a597U, 0xabcc77118461cefcU, 0xd6bf94d5e57a42bcU,
>+    0x8637bd05af6c69b5U, 0xa7c5ac471b478423U, 0xd1b71758e219652bU,
>+    0x83126e978d4fdf3bU, 0xa3d70a3d70a3d70aU, 0xccccccccccccccccU,
>+    0x8000000000000000U, 0xa000000000000000U, 0xc800000000000000U,
>+    0xfa00000000000000U, 0x9c40000000000000U, 0xc350000000000000U,
>+    0xf424000000000000U, 0x9896800000000000U, 0xbebc200000000000U,
>+    0xee6b280000000000U, 0x9502f90000000000U, 0xba43b74000000000U,
>+    0xe8d4a51000000000U, 0x9184e72a00000000U, 0xb5e620f480000000U,
>+    0xe35fa931a0000000U, 0x8e1bc9bf04000000U, 0xb1a2bc2ec5000000U,
>+    0xde0b6b3a76400000U, 0x8ac7230489e80000U, 0xad78ebc5ac620000U,
>+    0xd8d726b7177a8000U, 0x878678326eac9000U, 0xa968163f0a57b400U,
>+    0xd3c21bcecceda100U, 0x84595161401484a0U, 0xa56fa5b99019a5c8U,
>+    0xcecb8f27f4200f3aU, 0x813f3978f8940984U, 0xa18f07d736b90be5U,
>+    0xc9f2c9cd04674edeU, 0xfc6f7c4045812296U, 0x9dc5ada82b70b59dU,
>+    0xc5371912364ce305U, 0xf684df56c3e01bc6U, 0x9a130b963a6c115cU,
>+    0xc097ce7bc90715b3U, 0xf0bdc21abb48db20U, 0x96769950b50d88f4U,
>+    0xbc143fa4e250eb31U, 0xeb194f8e1ae525fdU, 0x92efd1b8d0cf37beU,
>+    0xb7abc627050305adU, 0xe596b7b0c643c719U, 0x8f7e32ce7bea5c6fU,
>+    0xb35dbf821ae4f38bU, 0xe0352f62a19e306eU, 0x8c213d9da502de45U,
>+    0xaf298d050e4395d6U, 0xdaf3f04651d47b4cU, 0x88d8762bf324cd0fU,
>+    0xab0e93b6efee0053U, 0xd5d238a4abe98068U, 0x85a36366eb71f041U,
>+    0xa70c3c40a64e6c51U, 0xd0cf4b50cfe20765U, 0x82818f1281ed449fU,
>+    0xa321f2d7226895c7U, 0xcbea6f8ceb02bb39U, 0xfee50b7025c36a08U,
>+    0x9f4f2726179a2245U, 0xc722f0ef9d80aad6U, 0xf8ebad2b84e0d58bU,
>+    0x9b934c3b330c8577U, 0xc2781f49ffcfa6d5U, 0xf316271c7fc3908aU,
>+    0x97edd871cfda3a56U, 0xbde94e8e43d0c8ecU, 0xed63a231d4c4fb27U,
>+    0x945e455f24fb1cf8U, 0xb975d6b6ee39e436U, 0xe7d34c64a9c85d44U,
>+    0x90e40fbeea1d3a4aU, 0xb51d13aea4a488ddU, 0xe264589a4dcdab14U,
>+    0x8d7eb76070a08aecU, 0xb0de65388cc8ada8U, 0xdd15fe86affad912U,
>+    0x8a2dbf142dfcc7abU, 0xacb92ed9397bf996U, 0xd7e77a8f87daf7fbU,
>+    0x86f0ac99b4e8dafdU, 0xa8acd7c0222311bcU, 0xd2d80db02aabd62bU,
>+    0x83c7088e1aab65dbU, 0xa4b8cab1a1563f52U, 0xcde6fd5e09abcf26U,
>+    0x80b05e5ac60b6178U, 0xa0dc75f1778e39d6U, 0xc913936dd571c84cU,
>+    0xfb5878494ace3a5fU, 0x9d174b2dcec0e47bU, 0xc45d1df942711d9aU,
>+    0xf5746577930d6500U, 0x9968bf6abbe85f20U, 0xbfc2ef456ae276e8U,
>+    0xefb3ab16c59b14a2U, 0x95d04aee3b80ece5U, 0xbb445da9ca61281fU,
>+    0xea1575143cf97226U, 0x924d692ca61be758U, 0xb6e0c377cfa2e12eU,
>+    0xe498f455c38b997aU, 0x8edf98b59a373fecU, 0xb2977ee300c50fe7U,
>+    0xdf3d5e9bc0f653e1U, 0x8b865b215899f46cU, 0xae67f1e9aec07187U,
>+    0xda01ee641a708de9U, 0x884134fe908658b2U, 0xaa51823e34a7eedeU,
>+    0xd4e5e2cdc1d1ea96U, 0x850fadc09923329eU, 0xa6539930bf6bff45U,
>+    0xcfe87f7cef46ff16U, 0x81f14fae158c5f6eU, 0xa26da3999aef7749U,
>+    0xcb090c8001ab551cU, 0xfdcb4fa002162a63U, 0x9e9f11c4014dda7eU,
>+    0xc646d63501a1511dU, 0xf7d88bc24209a565U, 0x9ae757596946075fU,
>+    0xc1a12d2fc3978937U, 0xf209787bb47d6b84U, 0x9745eb4d50ce6332U,
>+    0xbd176620a501fbffU, 0xec5d3fa8ce427affU, 0x93ba47c980e98cdfU,
>+    0xb8a8d9bbe123f017U, 0xe6d3102ad96cec1dU, 0x9043ea1ac7e41392U,
>+    0xb454e4a179dd1877U, 0xe16a1dc9d8545e94U, 0x8ce2529e2734bb1dU,
>+    0xb01ae745b101e9e4U, 0xdc21a1171d42645dU, 0x899504ae72497ebaU,
>+    0xabfa45da0edbde69U, 0xd6f8d7509292d603U, 0x865b86925b9bc5c2U,
>+    0xa7f26836f282b732U, 0xd1ef0244af2364ffU, 0x8335616aed761f1fU,
>+    0xa402b9c5a8d3a6e7U, 0xcd036837130890a1U, 0x802221226be55a64U,
>+    0xa02aa96b06deb0fdU, 0xc83553c5c8965d3dU, 0xfa42a8b73abbf48cU,
>+    0x9c69a97284b578d7U, 0xc38413cf25e2d70dU, 0xf46518c2ef5b8cd1U,
>+    0x98bf2f79d5993802U, 0xbeeefb584aff8603U, 0xeeaaba2e5dbf6784U,
>+    0x952ab45cfa97a0b2U, 0xba756174393d88dfU, 0xe912b9d1478ceb17U,
>+    0x91abb422ccb812eeU, 0xb616a12b7fe617aaU, 0xe39c49765fdf9d94U,
>+    0x8e41ade9fbebc27dU, 0xb1d219647ae6b31cU, 0xde469fbd99a05fe3U,
>+    0x8aec23d680043beeU, 0xada72ccc20054ae9U, 0xd910f7ff28069da4U,
>+    0x87aa9aff79042286U, 0xa99541bf57452b28U, 0xd3fa922f2d1675f2U,
>+    0x847c9b5d7c2e09b7U, 0xa59bc234db398c25U, 0xcf02b2c21207ef2eU,
>+    0x8161afb94b44f57dU, 0xa1ba1ba79e1632dcU, 0xca28a291859bbf93U,
>+    0xfcb2cb35e702af78U, 0x9defbf01b061adabU, 0xc56baec21c7a1916U,
>+    0xf6c69a72a3989f5bU, 0x9a3c2087a63f6399U, 0xc0cb28a98fcf3c7fU,
>+    0xf0fdf2d3f3c30b9fU, 0x969eb7c47859e743U, 0xbc4665b596706114U,
>+    0xeb57ff22fc0c7959U, 0x9316ff75dd87cbd8U, 0xb7dcbf5354e9beceU,
>+    0xe5d3ef282a242e81U, 0x8fa475791a569d10U, 0xb38d92d760ec4455U,
>+    0xe070f78d3927556aU, 0x8c469ab843b89562U, 0xaf58416654a6babbU,
>+    0xdb2e51bfe9d0696aU, 0x88fcf317f22241e2U, 0xab3c2fddeeaad25aU,
>+    0xd60b3bd56a5586f1U, 0x85c7056562757456U, 0xa738c6bebb12d16cU,
>+    0xd106f86e69d785c7U, 0x82a45b450226b39cU, 0xa34d721642b06084U,
>+    0xcc20ce9bd35c78a5U, 0xff290242c83396ceU, 0x9f79a169bd203e41U,
>+    0xc75809c42c684dd1U, 0xf92e0c3537826145U, 0x9bbcc7a142b17ccbU,
>+    0xc2abf989935ddbfeU, 0xf356f7ebf83552feU, 0x98165af37b2153deU,
>+    0xbe1bf1b059e9a8d6U, 0xeda2ee1c7064130cU, 0x9485d4d1c63e8be7U,
>+    0xb9a74a0637ce2ee1U, 0xe8111c87c5c1ba99U, 0x910ab1d4db9914a0U,
>+    0xb54d5e4a127f59c8U, 0xe2a0b5dc971f303aU, 0x8da471a9de737e24U,
>+    0xb10d8e1456105dadU, 0xdd50f1996b947518U, 0x8a5296ffe33cc92fU,
>+    0xace73cbfdc0bfb7bU, 0xd8210befd30efa5aU, 0x8714a775e3e95c78U,
>+    0xa8d9d1535ce3b396U, 0xd31045a8341ca07cU, 0x83ea2b892091e44dU,
>+    0xa4e4b66b68b65d60U, 0xce1de40642e3f4b9U, 0x80d2ae83e9ce78f3U,
>+    0xa1075a24e4421730U, 0xc94930ae1d529cfcU, 0xfb9b7cd9a4a7443cU,
>+    0x9d412e0806e88aa5U, 0xc491798a08a2ad4eU, 0xf5b5d7ec8acb58a2U,
>+    0x9991a6f3d6bf1765U, 0xbff610b0cc6edd3fU, 0xeff394dcff8a948eU,
>+    0x95f83d0a1fb69cd9U, 0xbb764c4ca7a4440fU, 0xea53df5fd18d5513U,
>+    0x92746b9be2f8552cU, 0xb7118682dbb66a77U, 0xe4d5e82392a40515U,
>+    0x8f05b1163ba6832dU, 0xb2c71d5bca9023f8U, 0xdf78e4b2bd342cf6U,
>+    0x8bab8eefb6409c1aU, 0xae9672aba3d0c320U, 0xda3c0f568cc4f3e8U,
>+    0x8865899617fb1871U, 0xaa7eebfb9df9de8dU, 0xd51ea6fa85785631U,
>+    0x8533285c936b35deU, 0xa67ff273b8460356U, 0xd01fef10a657842cU,
>+    0x8213f56a67f6b29bU, 0xa298f2c501f45f42U, 0xcb3f2f7642717713U,
>+    0xfe0efb53d30dd4d7U, 0x9ec95d1463e8a506U, 0xc67bb4597ce2ce48U,
>+    0xf81aa16fdc1b81daU, 0x9b10a4e5e9913128U, 0xc1d4ce1f63f57d72U,
>+    0xf24a01a73cf2dccfU, 0x976e41088617ca01U, 0xbd49d14aa79dbc82U,
>+    0xec9c459d51852ba2U, 0x93e1ab8252f33b45U, 0xb8da1662e7b00a17U,
>+    0xe7109bfba19c0c9dU, 0x906a617d450187e2U, 0xb484f9dc9641e9daU,
>+    0xe1a63853bbd26451U, 0x8d07e33455637eb2U, 0xb049dc016abc5e5fU,
>+    0xdc5c5301c56b75f7U, 0x89b9b3e11b6329baU, 0xac2820d9623bf429U,
>+    0xd732290fbacaf133U, 0x867f59a9d4bed6c0U, 0xa81f301449ee8c70U,
>+    0xd226fc195c6a2f8cU, 0x83585d8fd9c25db7U, 0xa42e74f3d032f525U,
>+    0xcd3a1230c43fb26fU, 0x80444b5e7aa7cf85U, 0xa0555e361951c366U,
>+    0xc86ab5c39fa63440U, 0xfa856334878fc150U, 0x9c935e00d4b9d8d2U,
>+    0xc3b8358109e84f07U, 0xf4a642e14c6262c8U, 0x98e7e9cccfbd7dbdU,
>+    0xbf21e44003acdd2cU, 0xeeea5d5004981478U, 0x95527a5202df0ccbU,
>+    0xbaa718e68396cffdU, 0xe950df20247c83fdU, 0x91d28b7416cdd27eU,
>+    0xb6472e511c81471dU, 0xe3d8f9e563a198e5U, 0x8e679c2f5e44ff8fU,
>+};
>+
>+const int16_t kPower10ExponentTable[] = {
>+    -1200, -1196, -1193, -1190, -1186, -1183, -1180, -1176, -1173, -1170, -1166,
>+    -1163, -1160, -1156, -1153, -1150, -1146, -1143, -1140, -1136, -1133, -1130,
>+    -1127, -1123, -1120, -1117, -1113, -1110, -1107, -1103, -1100, -1097, -1093,
>+    -1090, -1087, -1083, -1080, -1077, -1073, -1070, -1067, -1063, -1060, -1057,
>+    -1053, -1050, -1047, -1043, -1040, -1037, -1034, -1030, -1027, -1024, -1020,
>+    -1017, -1014, -1010, -1007, -1004, -1000, -997,  -994,  -990,  -987,  -984,
>+    -980,  -977,  -974,  -970,  -967,  -964,  -960,  -957,  -954,  -950,  -947,
>+    -944,  -940,  -937,  -934,  -931,  -927,  -924,  -921,  -917,  -914,  -911,
>+    -907,  -904,  -901,  -897,  -894,  -891,  -887,  -884,  -881,  -877,  -874,
>+    -871,  -867,  -864,  -861,  -857,  -854,  -851,  -847,  -844,  -841,  -838,
>+    -834,  -831,  -828,  -824,  -821,  -818,  -814,  -811,  -808,  -804,  -801,
>+    -798,  -794,  -791,  -788,  -784,  -781,  -778,  -774,  -771,  -768,  -764,
>+    -761,  -758,  -754,  -751,  -748,  -744,  -741,  -738,  -735,  -731,  -728,
>+    -725,  -721,  -718,  -715,  -711,  -708,  -705,  -701,  -698,  -695,  -691,
>+    -688,  -685,  -681,  -678,  -675,  -671,  -668,  -665,  -661,  -658,  -655,
>+    -651,  -648,  -645,  -642,  -638,  -635,  -632,  -628,  -625,  -622,  -618,
>+    -615,  -612,  -608,  -605,  -602,  -598,  -595,  -592,  -588,  -585,  -582,
>+    -578,  -575,  -572,  -568,  -565,  -562,  -558,  -555,  -552,  -549,  -545,
>+    -542,  -539,  -535,  -532,  -529,  -525,  -522,  -519,  -515,  -512,  -509,
>+    -505,  -502,  -499,  -495,  -492,  -489,  -485,  -482,  -479,  -475,  -472,
>+    -469,  -465,  -462,  -459,  -455,  -452,  -449,  -446,  -442,  -439,  -436,
>+    -432,  -429,  -426,  -422,  -419,  -416,  -412,  -409,  -406,  -402,  -399,
>+    -396,  -392,  -389,  -386,  -382,  -379,  -376,  -372,  -369,  -366,  -362,
>+    -359,  -356,  -353,  -349,  -346,  -343,  -339,  -336,  -333,  -329,  -326,
>+    -323,  -319,  -316,  -313,  -309,  -306,  -303,  -299,  -296,  -293,  -289,
>+    -286,  -283,  -279,  -276,  -273,  -269,  -266,  -263,  -259,  -256,  -253,
>+    -250,  -246,  -243,  -240,  -236,  -233,  -230,  -226,  -223,  -220,  -216,
>+    -213,  -210,  -206,  -203,  -200,  -196,  -193,  -190,  -186,  -183,  -180,
>+    -176,  -173,  -170,  -166,  -163,  -160,  -157,  -153,  -150,  -147,  -143,
>+    -140,  -137,  -133,  -130,  -127,  -123,  -120,  -117,  -113,  -110,  -107,
>+    -103,  -100,  -97,   -93,   -90,   -87,   -83,   -80,   -77,   -73,   -70,
>+    -67,   -63,   -60,   -57,   -54,   -50,   -47,   -44,   -40,   -37,   -34,
>+    -30,   -27,   -24,   -20,   -17,   -14,   -10,   -7,    -4,    0,     3,
>+    6,     10,    13,    16,    20,    23,    26,    30,    33,    36,    39,
>+    43,    46,    49,    53,    56,    59,    63,    66,    69,    73,    76,
>+    79,    83,    86,    89,    93,    96,    99,    103,   106,   109,   113,
>+    116,   119,   123,   126,   129,   132,   136,   139,   142,   146,   149,
>+    152,   156,   159,   162,   166,   169,   172,   176,   179,   182,   186,
>+    189,   192,   196,   199,   202,   206,   209,   212,   216,   219,   222,
>+    226,   229,   232,   235,   239,   242,   245,   249,   252,   255,   259,
>+    262,   265,   269,   272,   275,   279,   282,   285,   289,   292,   295,
>+    299,   302,   305,   309,   312,   315,   319,   322,   325,   328,   332,
>+    335,   338,   342,   345,   348,   352,   355,   358,   362,   365,   368,
>+    372,   375,   378,   382,   385,   388,   392,   395,   398,   402,   405,
>+    408,   412,   415,   418,   422,   425,   428,   431,   435,   438,   441,
>+    445,   448,   451,   455,   458,   461,   465,   468,   471,   475,   478,
>+    481,   485,   488,   491,   495,   498,   501,   505,   508,   511,   515,
>+    518,   521,   524,   528,   531,   534,   538,   541,   544,   548,   551,
>+    554,   558,   561,   564,   568,   571,   574,   578,   581,   584,   588,
>+    591,   594,   598,   601,   604,   608,   611,   614,   617,   621,   624,
>+    627,   631,   634,   637,   641,   644,   647,   651,   654,   657,   661,
>+    664,   667,   671,   674,   677,   681,   684,   687,   691,   694,   697,
>+    701,   704,   707,   711,   714,   717,   720,   724,   727,   730,   734,
>+    737,   740,   744,   747,   750,   754,   757,   760,   764,   767,   770,
>+    774,   777,   780,   784,   787,   790,   794,   797,   800,   804,   807,
>+    810,   813,   817,   820,   823,   827,   830,   833,   837,   840,   843,
>+    847,   850,   853,   857,   860,   863,   867,   870,   873,   877,   880,
>+    883,   887,   890,   893,   897,   900,   903,   907,   910,   913,   916,
>+    920,   923,   926,   930,   933,   936,   940,   943,   946,   950,   953,
>+    956,   960,
>+};
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e313679c9618aa88dc9e8b55e88e96a0f7f696b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv.h
>@@ -0,0 +1,115 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_STRINGS_CHARCONV_H_
>+#define ABSL_STRINGS_CHARCONV_H_
>+
>+#include <system_error>  // NOLINT(build/c++11)
>+
>+namespace absl {
>+
>+// Workalike compatibilty version of std::chars_format from C++17.
>+//
>+// This is an bitfield enumerator which can be passed to absl::from_chars to
>+// configure the std::string-to-float conversion.
>+enum class chars_format {
>+  scientific = 1,
>+  fixed = 2,
>+  hex = 4,
>+  general = fixed | scientific,
>+};
>+
>+// The return result of a std::string-to-number conversion.
>+//
>+// `ec` will be set to `invalid_argument` if a well-formed number was not found
>+// at the start of the input range, `result_out_of_range` if a well-formed
>+// number was found, but it was out of the representable range of the requested
>+// type, or to std::errc() otherwise.
>+//
>+// If a well-formed number was found, `ptr` is set to one past the sequence of
>+// characters that were successfully parsed.  If none was found, `ptr` is set
>+// to the `first` argument to from_chars.
>+struct from_chars_result {
>+  const char* ptr;
>+  std::errc ec;
>+};
>+
>+// Workalike compatibilty version of std::from_chars from C++17.  Currently
>+// this only supports the `double` and `float` types.
>+//
>+// This interface incorporates the proposed resolutions for library issues
>+// DR 3800 and DR 3801.  If these are adopted with different wording,
>+// Abseil's behavior will change to match the standard.  (The behavior most
>+// likely to change is for DR 3801, which says what `value` will be set to in
>+// the case of overflow and underflow.  Code that wants to avoid possible
>+// breaking changes in this area should not depend on `value` when the returned
>+// from_chars_result indicates a range error.)
>+//
>+// Searches the range [first, last) for the longest matching pattern beginning
>+// at `first` that represents a floating point number.  If one is found, store
>+// the result in `value`.
>+//
>+// The matching pattern format is almost the same as that of strtod(), except
>+// that C locale is not respected, and an initial '+' character in the input
>+// range will never be matched.
>+//
>+// If `fmt` is set, it must be one of the enumerator values of the chars_format.
>+// (This is despite the fact that chars_format is a bitmask type.)  If set to
>+// `scientific`, a matching number must contain an exponent.  If set to `fixed`,
>+// then an exponent will never match.  (For example, the std::string "1e5" will be
>+// parsed as "1".)  If set to `hex`, then a hexadecimal float is parsed in the
>+// format that strtod() accepts, except that a "0x" prefix is NOT matched.
>+// (In particular, in `hex` mode, the input "0xff" results in the largest
>+// matching pattern "0".)
>+absl::from_chars_result from_chars(const char* first, const char* last,
>+                                   double& value,  // NOLINT
>+                                   chars_format fmt = chars_format::general);
>+
>+absl::from_chars_result from_chars(const char* first, const char* last,
>+                                   float& value,  // NOLINT
>+                                   chars_format fmt = chars_format::general);
>+
>+// std::chars_format is specified as a bitmask type, which means the following
>+// operations must be provided:
>+inline constexpr chars_format operator&(chars_format lhs, chars_format rhs) {
>+  return static_cast<chars_format>(static_cast<int>(lhs) &
>+                                   static_cast<int>(rhs));
>+}
>+inline constexpr chars_format operator|(chars_format lhs, chars_format rhs) {
>+  return static_cast<chars_format>(static_cast<int>(lhs) |
>+                                   static_cast<int>(rhs));
>+}
>+inline constexpr chars_format operator^(chars_format lhs, chars_format rhs) {
>+  return static_cast<chars_format>(static_cast<int>(lhs) ^
>+                                   static_cast<int>(rhs));
>+}
>+inline constexpr chars_format operator~(chars_format arg) {
>+  return static_cast<chars_format>(~static_cast<int>(arg));
>+}
>+inline chars_format& operator&=(chars_format& lhs, chars_format rhs) {
>+  lhs = lhs & rhs;
>+  return lhs;
>+}
>+inline chars_format& operator|=(chars_format& lhs, chars_format rhs) {
>+  lhs = lhs | rhs;
>+  return lhs;
>+}
>+inline chars_format& operator^=(chars_format& lhs, chars_format rhs) {
>+  lhs = lhs ^ rhs;
>+  return lhs;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_CHARCONV_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fd83f44e3d09ceb944125bdd19f7282c39f62ee6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_benchmark.cc
>@@ -0,0 +1,204 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/charconv.h"
>+
>+#include <cstdlib>
>+#include <cstring>
>+#include <string>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+void BM_Strtod_Pi(benchmark::State& state) {
>+  const char* pi = "3.14159";
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(pi);
>+    benchmark::DoNotOptimize(strtod(pi, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_Pi);
>+
>+void BM_Absl_Pi(benchmark::State& state) {
>+  const char* pi = "3.14159";
>+  const char* pi_end = pi + strlen(pi);
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(pi);
>+    double v;
>+    absl::from_chars(pi, pi_end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_Pi);
>+
>+void BM_Strtod_Pi_float(benchmark::State& state) {
>+  const char* pi = "3.14159";
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(pi);
>+    benchmark::DoNotOptimize(strtof(pi, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_Pi_float);
>+
>+void BM_Absl_Pi_float(benchmark::State& state) {
>+  const char* pi = "3.14159";
>+  const char* pi_end = pi + strlen(pi);
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(pi);
>+    float v;
>+    absl::from_chars(pi, pi_end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_Pi_float);
>+
>+void BM_Strtod_HardLarge(benchmark::State& state) {
>+  const char* num = "272104041512242479.e200";
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(num);
>+    benchmark::DoNotOptimize(strtod(num, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_HardLarge);
>+
>+void BM_Absl_HardLarge(benchmark::State& state) {
>+  const char* numstr = "272104041512242479.e200";
>+  const char* numstr_end = numstr + strlen(numstr);
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(numstr);
>+    double v;
>+    absl::from_chars(numstr, numstr_end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_HardLarge);
>+
>+void BM_Strtod_HardSmall(benchmark::State& state) {
>+  const char* num = "94080055902682397.e-242";
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(num);
>+    benchmark::DoNotOptimize(strtod(num, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_HardSmall);
>+
>+void BM_Absl_HardSmall(benchmark::State& state) {
>+  const char* numstr = "94080055902682397.e-242";
>+  const char* numstr_end = numstr + strlen(numstr);
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(numstr);
>+    double v;
>+    absl::from_chars(numstr, numstr_end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_HardSmall);
>+
>+void BM_Strtod_HugeMantissa(benchmark::State& state) {
>+  std::string huge(200, '3');
>+  const char* num = huge.c_str();
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(num);
>+    benchmark::DoNotOptimize(strtod(num, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_HugeMantissa);
>+
>+void BM_Absl_HugeMantissa(benchmark::State& state) {
>+  std::string huge(200, '3');
>+  const char* num = huge.c_str();
>+  const char* num_end = num + 200;
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(num);
>+    double v;
>+    absl::from_chars(num, num_end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_HugeMantissa);
>+
>+std::string MakeHardCase(int length) {
>+  // The number 1.1521...e-297 is exactly halfway between 12345 * 2**-1000 and
>+  // the next larger representable number.  The digits of this number are in
>+  // the std::string below.
>+  const std::string digits =
>+      "1."
>+      "152113937042223790993097181572444900347587985074226836242307364987727724"
>+      "831384300183638649152607195040591791364113930628852279348613864894524591"
>+      "272746490313676832900762939595690019745859128071117417798540258114233761"
>+      "012939937017879509401007964861774960297319002612457273148497158989073482"
>+      "171377406078223015359818300988676687994537274548940612510414856761641652"
>+      "513434981938564294004070500716200446656421722229202383105446378511678258"
>+      "370570631774499359748259931676320916632111681001853983492795053244971606"
>+      "922718923011680846577744433974087653954904214152517799883551075537146316"
>+      "168973685866425605046988661997658648354773076621610279716804960009043764"
>+      "038392994055171112475093876476783502487512538082706095923790634572014823"
>+      "78877699375152587890625" +
>+      std::string(5000, '0');
>+  // generate the hard cases on either side for the given length.
>+  // Lengths between 3 and 1000 are reasonable.
>+  return digits.substr(0, length) + "1e-297";
>+}
>+
>+void BM_Strtod_Big_And_Difficult(benchmark::State& state) {
>+  std::string testcase = MakeHardCase(state.range(0));
>+  const char* begin = testcase.c_str();
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(begin);
>+    benchmark::DoNotOptimize(strtod(begin, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Strtod_Big_And_Difficult)->Range(3, 5000);
>+
>+void BM_Absl_Big_And_Difficult(benchmark::State& state) {
>+  std::string testcase = MakeHardCase(state.range(0));
>+  const char* begin = testcase.c_str();
>+  const char* end = begin + testcase.size();
>+  for (auto s : state) {
>+    benchmark::DoNotOptimize(begin);
>+    double v;
>+    absl::from_chars(begin, end, v);
>+    benchmark::DoNotOptimize(v);
>+  }
>+}
>+BENCHMARK(BM_Absl_Big_And_Difficult)->Range(3, 5000);
>+
>+}  // namespace
>+
>+// ------------------------------------------------------------------------
>+// Benchmark                                 Time           CPU Iterations
>+// ------------------------------------------------------------------------
>+// BM_Strtod_Pi                             96 ns         96 ns    6337454
>+// BM_Absl_Pi                               35 ns         35 ns   20031996
>+// BM_Strtod_Pi_float                       91 ns         91 ns    7745851
>+// BM_Absl_Pi_float                         35 ns         35 ns   20430298
>+// BM_Strtod_HardLarge                     133 ns        133 ns    5288341
>+// BM_Absl_HardLarge                       181 ns        181 ns    3855615
>+// BM_Strtod_HardSmall                     279 ns        279 ns    2517243
>+// BM_Absl_HardSmall                       287 ns        287 ns    2458744
>+// BM_Strtod_HugeMantissa                  433 ns        433 ns    1604293
>+// BM_Absl_HugeMantissa                    160 ns        160 ns    4403671
>+// BM_Strtod_Big_And_Difficult/3           236 ns        236 ns    2942496
>+// BM_Strtod_Big_And_Difficult/8           232 ns        232 ns    2983796
>+// BM_Strtod_Big_And_Difficult/64          437 ns        437 ns    1591951
>+// BM_Strtod_Big_And_Difficult/512        1738 ns       1738 ns     402519
>+// BM_Strtod_Big_And_Difficult/4096       3943 ns       3943 ns     176128
>+// BM_Strtod_Big_And_Difficult/5000       4397 ns       4397 ns     157878
>+// BM_Absl_Big_And_Difficult/3              39 ns         39 ns   17799583
>+// BM_Absl_Big_And_Difficult/8              43 ns         43 ns   16096859
>+// BM_Absl_Big_And_Difficult/64            550 ns        550 ns    1259717
>+// BM_Absl_Big_And_Difficult/512          4167 ns       4167 ns     171414
>+// BM_Absl_Big_And_Difficult/4096         9160 ns       9159 ns      76297
>+// BM_Absl_Big_And_Difficult/5000         9738 ns       9738 ns      70140
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f8d71cc6c448c7a3e7f0caf98098fc7b4d2d5642
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/charconv_test.cc
>@@ -0,0 +1,766 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/charconv.h"
>+
>+#include <cstdlib>
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_cat.h"
>+
>+#ifdef _MSC_FULL_VER
>+#define ABSL_COMPILER_DOES_EXACT_ROUNDING 0
>+#define ABSL_STRTOD_HANDLES_NAN_CORRECTLY 0
>+#else
>+#define ABSL_COMPILER_DOES_EXACT_ROUNDING 1
>+#define ABSL_STRTOD_HANDLES_NAN_CORRECTLY 1
>+#endif
>+
>+namespace {
>+
>+#if ABSL_COMPILER_DOES_EXACT_ROUNDING
>+
>+// Tests that the given std::string is accepted by absl::from_chars, and that it
>+// converts exactly equal to the given number.
>+void TestDoubleParse(absl::string_view str, double expected_number) {
>+  SCOPED_TRACE(str);
>+  double actual_number = 0.0;
>+  absl::from_chars_result result =
>+      absl::from_chars(str.data(), str.data() + str.length(), actual_number);
>+  EXPECT_EQ(result.ec, std::errc());
>+  EXPECT_EQ(result.ptr, str.data() + str.length());
>+  EXPECT_EQ(actual_number, expected_number);
>+}
>+
>+void TestFloatParse(absl::string_view str, float expected_number) {
>+  SCOPED_TRACE(str);
>+  float actual_number = 0.0;
>+  absl::from_chars_result result =
>+      absl::from_chars(str.data(), str.data() + str.length(), actual_number);
>+  EXPECT_EQ(result.ec, std::errc());
>+  EXPECT_EQ(result.ptr, str.data() + str.length());
>+  EXPECT_EQ(actual_number, expected_number);
>+}
>+
>+// Tests that the given double or single precision floating point literal is
>+// parsed correctly by absl::from_chars.
>+//
>+// These convenience macros assume that the C++ compiler being used also does
>+// fully correct decimal-to-binary conversions.
>+#define FROM_CHARS_TEST_DOUBLE(number)     \
>+  {                                        \
>+    TestDoubleParse(#number, number);      \
>+    TestDoubleParse("-" #number, -number); \
>+  }
>+
>+#define FROM_CHARS_TEST_FLOAT(number)        \
>+  {                                          \
>+    TestFloatParse(#number, number##f);      \
>+    TestFloatParse("-" #number, -number##f); \
>+  }
>+
>+TEST(FromChars, NearRoundingCases) {
>+  // Cases from "A Program for Testing IEEE Decimal-Binary Conversion"
>+  // by Vern Paxson.
>+
>+  // Forms that should round towards zero.  (These are the hardest cases for
>+  // each decimal mantissa size.)
>+  FROM_CHARS_TEST_DOUBLE(5.e125);
>+  FROM_CHARS_TEST_DOUBLE(69.e267);
>+  FROM_CHARS_TEST_DOUBLE(999.e-026);
>+  FROM_CHARS_TEST_DOUBLE(7861.e-034);
>+  FROM_CHARS_TEST_DOUBLE(75569.e-254);
>+  FROM_CHARS_TEST_DOUBLE(928609.e-261);
>+  FROM_CHARS_TEST_DOUBLE(9210917.e080);
>+  FROM_CHARS_TEST_DOUBLE(84863171.e114);
>+  FROM_CHARS_TEST_DOUBLE(653777767.e273);
>+  FROM_CHARS_TEST_DOUBLE(5232604057.e-298);
>+  FROM_CHARS_TEST_DOUBLE(27235667517.e-109);
>+  FROM_CHARS_TEST_DOUBLE(653532977297.e-123);
>+  FROM_CHARS_TEST_DOUBLE(3142213164987.e-294);
>+  FROM_CHARS_TEST_DOUBLE(46202199371337.e-072);
>+  FROM_CHARS_TEST_DOUBLE(231010996856685.e-073);
>+  FROM_CHARS_TEST_DOUBLE(9324754620109615.e212);
>+  FROM_CHARS_TEST_DOUBLE(78459735791271921.e049);
>+  FROM_CHARS_TEST_DOUBLE(272104041512242479.e200);
>+  FROM_CHARS_TEST_DOUBLE(6802601037806061975.e198);
>+  FROM_CHARS_TEST_DOUBLE(20505426358836677347.e-221);
>+  FROM_CHARS_TEST_DOUBLE(836168422905420598437.e-234);
>+  FROM_CHARS_TEST_DOUBLE(4891559871276714924261.e222);
>+  FROM_CHARS_TEST_FLOAT(5.e-20);
>+  FROM_CHARS_TEST_FLOAT(67.e14);
>+  FROM_CHARS_TEST_FLOAT(985.e15);
>+  FROM_CHARS_TEST_FLOAT(7693.e-42);
>+  FROM_CHARS_TEST_FLOAT(55895.e-16);
>+  FROM_CHARS_TEST_FLOAT(996622.e-44);
>+  FROM_CHARS_TEST_FLOAT(7038531.e-32);
>+  FROM_CHARS_TEST_FLOAT(60419369.e-46);
>+  FROM_CHARS_TEST_FLOAT(702990899.e-20);
>+  FROM_CHARS_TEST_FLOAT(6930161142.e-48);
>+  FROM_CHARS_TEST_FLOAT(25933168707.e-13);
>+  FROM_CHARS_TEST_FLOAT(596428896559.e20);
>+
>+  // Similarly, forms that should round away from zero.
>+  FROM_CHARS_TEST_DOUBLE(9.e-265);
>+  FROM_CHARS_TEST_DOUBLE(85.e-037);
>+  FROM_CHARS_TEST_DOUBLE(623.e100);
>+  FROM_CHARS_TEST_DOUBLE(3571.e263);
>+  FROM_CHARS_TEST_DOUBLE(81661.e153);
>+  FROM_CHARS_TEST_DOUBLE(920657.e-023);
>+  FROM_CHARS_TEST_DOUBLE(4603285.e-024);
>+  FROM_CHARS_TEST_DOUBLE(87575437.e-309);
>+  FROM_CHARS_TEST_DOUBLE(245540327.e122);
>+  FROM_CHARS_TEST_DOUBLE(6138508175.e120);
>+  FROM_CHARS_TEST_DOUBLE(83356057653.e193);
>+  FROM_CHARS_TEST_DOUBLE(619534293513.e124);
>+  FROM_CHARS_TEST_DOUBLE(2335141086879.e218);
>+  FROM_CHARS_TEST_DOUBLE(36167929443327.e-159);
>+  FROM_CHARS_TEST_DOUBLE(609610927149051.e-255);
>+  FROM_CHARS_TEST_DOUBLE(3743626360493413.e-165);
>+  FROM_CHARS_TEST_DOUBLE(94080055902682397.e-242);
>+  FROM_CHARS_TEST_DOUBLE(899810892172646163.e283);
>+  FROM_CHARS_TEST_DOUBLE(7120190517612959703.e120);
>+  FROM_CHARS_TEST_DOUBLE(25188282901709339043.e-252);
>+  FROM_CHARS_TEST_DOUBLE(308984926168550152811.e-052);
>+  FROM_CHARS_TEST_DOUBLE(6372891218502368041059.e064);
>+  FROM_CHARS_TEST_FLOAT(3.e-23);
>+  FROM_CHARS_TEST_FLOAT(57.e18);
>+  FROM_CHARS_TEST_FLOAT(789.e-35);
>+  FROM_CHARS_TEST_FLOAT(2539.e-18);
>+  FROM_CHARS_TEST_FLOAT(76173.e28);
>+  FROM_CHARS_TEST_FLOAT(887745.e-11);
>+  FROM_CHARS_TEST_FLOAT(5382571.e-37);
>+  FROM_CHARS_TEST_FLOAT(82381273.e-35);
>+  FROM_CHARS_TEST_FLOAT(750486563.e-38);
>+  FROM_CHARS_TEST_FLOAT(3752432815.e-39);
>+  FROM_CHARS_TEST_FLOAT(75224575729.e-45);
>+  FROM_CHARS_TEST_FLOAT(459926601011.e15);
>+}
>+
>+#undef FROM_CHARS_TEST_DOUBLE
>+#undef FROM_CHARS_TEST_FLOAT
>+#endif
>+
>+float ToFloat(absl::string_view s) {
>+  float f;
>+  absl::from_chars(s.data(), s.data() + s.size(), f);
>+  return f;
>+}
>+
>+double ToDouble(absl::string_view s) {
>+  double d;
>+  absl::from_chars(s.data(), s.data() + s.size(), d);
>+  return d;
>+}
>+
>+// A duplication of the test cases in "NearRoundingCases" above, but with
>+// expected values expressed with integers, using ldexp/ldexpf.  These test
>+// cases will work even on compilers that do not accurately round floating point
>+// literals.
>+TEST(FromChars, NearRoundingCasesExplicit) {
>+  EXPECT_EQ(ToDouble("5.e125"), ldexp(6653062250012735, 365));
>+  EXPECT_EQ(ToDouble("69.e267"), ldexp(4705683757438170, 841));
>+  EXPECT_EQ(ToDouble("999.e-026"), ldexp(6798841691080350, -129));
>+  EXPECT_EQ(ToDouble("7861.e-034"), ldexp(8975675289889240, -153));
>+  EXPECT_EQ(ToDouble("75569.e-254"), ldexp(6091718967192243, -880));
>+  EXPECT_EQ(ToDouble("928609.e-261"), ldexp(7849264900213743, -900));
>+  EXPECT_EQ(ToDouble("9210917.e080"), ldexp(8341110837370930, 236));
>+  EXPECT_EQ(ToDouble("84863171.e114"), ldexp(4625202867375927, 353));
>+  EXPECT_EQ(ToDouble("653777767.e273"), ldexp(5068902999763073, 884));
>+  EXPECT_EQ(ToDouble("5232604057.e-298"), ldexp(5741343011915040, -1010));
>+  EXPECT_EQ(ToDouble("27235667517.e-109"), ldexp(6707124626673586, -380));
>+  EXPECT_EQ(ToDouble("653532977297.e-123"), ldexp(7078246407265384, -422));
>+  EXPECT_EQ(ToDouble("3142213164987.e-294"), ldexp(8219991337640559, -988));
>+  EXPECT_EQ(ToDouble("46202199371337.e-072"), ldexp(5224462102115359, -246));
>+  EXPECT_EQ(ToDouble("231010996856685.e-073"), ldexp(5224462102115359, -247));
>+  EXPECT_EQ(ToDouble("9324754620109615.e212"), ldexp(5539753864394442, 705));
>+  EXPECT_EQ(ToDouble("78459735791271921.e049"), ldexp(8388176519442766, 166));
>+  EXPECT_EQ(ToDouble("272104041512242479.e200"), ldexp(5554409530847367, 670));
>+  EXPECT_EQ(ToDouble("6802601037806061975.e198"), ldexp(5554409530847367, 668));
>+  EXPECT_EQ(ToDouble("20505426358836677347.e-221"),
>+            ldexp(4524032052079546, -722));
>+  EXPECT_EQ(ToDouble("836168422905420598437.e-234"),
>+            ldexp(5070963299887562, -760));
>+  EXPECT_EQ(ToDouble("4891559871276714924261.e222"),
>+            ldexp(6452687840519111, 757));
>+  EXPECT_EQ(ToFloat("5.e-20"), ldexpf(15474250, -88));
>+  EXPECT_EQ(ToFloat("67.e14"), ldexpf(12479722, 29));
>+  EXPECT_EQ(ToFloat("985.e15"), ldexpf(14333636, 36));
>+  EXPECT_EQ(ToFloat("7693.e-42"), ldexpf(10979816, -150));
>+  EXPECT_EQ(ToFloat("55895.e-16"), ldexpf(12888509, -61));
>+  EXPECT_EQ(ToFloat("996622.e-44"), ldexpf(14224264, -150));
>+  EXPECT_EQ(ToFloat("7038531.e-32"), ldexpf(11420669, -107));
>+  EXPECT_EQ(ToFloat("60419369.e-46"), ldexpf(8623340, -150));
>+  EXPECT_EQ(ToFloat("702990899.e-20"), ldexpf(16209866, -61));
>+  EXPECT_EQ(ToFloat("6930161142.e-48"), ldexpf(9891056, -150));
>+  EXPECT_EQ(ToFloat("25933168707.e-13"), ldexpf(11138211, -32));
>+  EXPECT_EQ(ToFloat("596428896559.e20"), ldexpf(12333860, 82));
>+
>+
>+  EXPECT_EQ(ToDouble("9.e-265"), ldexp(8168427841980010, -930));
>+  EXPECT_EQ(ToDouble("85.e-037"), ldexp(6360455125664090, -169));
>+  EXPECT_EQ(ToDouble("623.e100"), ldexp(6263531988747231, 289));
>+  EXPECT_EQ(ToDouble("3571.e263"), ldexp(6234526311072170, 833));
>+  EXPECT_EQ(ToDouble("81661.e153"), ldexp(6696636728760206, 472));
>+  EXPECT_EQ(ToDouble("920657.e-023"), ldexp(5975405561110124, -109));
>+  EXPECT_EQ(ToDouble("4603285.e-024"), ldexp(5975405561110124, -110));
>+  EXPECT_EQ(ToDouble("87575437.e-309"), ldexp(8452160731874668, -1053));
>+  EXPECT_EQ(ToDouble("245540327.e122"), ldexp(4985336549131723, 381));
>+  EXPECT_EQ(ToDouble("6138508175.e120"), ldexp(4985336549131723, 379));
>+  EXPECT_EQ(ToDouble("83356057653.e193"), ldexp(5986732817132056, 625));
>+  EXPECT_EQ(ToDouble("619534293513.e124"), ldexp(4798406992060657, 399));
>+  EXPECT_EQ(ToDouble("2335141086879.e218"), ldexp(5419088166961646, 713));
>+  EXPECT_EQ(ToDouble("36167929443327.e-159"), ldexp(8135819834632444, -536));
>+  EXPECT_EQ(ToDouble("609610927149051.e-255"), ldexp(4576664294594737, -850));
>+  EXPECT_EQ(ToDouble("3743626360493413.e-165"), ldexp(6898586531774201, -549));
>+  EXPECT_EQ(ToDouble("94080055902682397.e-242"), ldexp(6273271706052298, -800));
>+  EXPECT_EQ(ToDouble("899810892172646163.e283"), ldexp(7563892574477827, 947));
>+  EXPECT_EQ(ToDouble("7120190517612959703.e120"), ldexp(5385467232557565, 409));
>+  EXPECT_EQ(ToDouble("25188282901709339043.e-252"),
>+            ldexp(5635662608542340, -825));
>+  EXPECT_EQ(ToDouble("308984926168550152811.e-052"),
>+            ldexp(5644774693823803, -157));
>+  EXPECT_EQ(ToDouble("6372891218502368041059.e064"),
>+            ldexp(4616868614322430, 233));
>+
>+  EXPECT_EQ(ToFloat("3.e-23"), ldexpf(9507380, -98));
>+  EXPECT_EQ(ToFloat("57.e18"), ldexpf(12960300, 42));
>+  EXPECT_EQ(ToFloat("789.e-35"), ldexpf(10739312, -130));
>+  EXPECT_EQ(ToFloat("2539.e-18"), ldexpf(11990089, -72));
>+  EXPECT_EQ(ToFloat("76173.e28"), ldexpf(9845130, 86));
>+  EXPECT_EQ(ToFloat("887745.e-11"), ldexpf(9760860, -40));
>+  EXPECT_EQ(ToFloat("5382571.e-37"), ldexpf(11447463, -124));
>+  EXPECT_EQ(ToFloat("82381273.e-35"), ldexpf(8554961, -113));
>+  EXPECT_EQ(ToFloat("750486563.e-38"), ldexpf(9975678, -120));
>+  EXPECT_EQ(ToFloat("3752432815.e-39"), ldexpf(9975678, -121));
>+  EXPECT_EQ(ToFloat("75224575729.e-45"), ldexpf(13105970, -137));
>+  EXPECT_EQ(ToFloat("459926601011.e15"), ldexpf(12466336, 65));
>+}
>+
>+// Common test logic for converting a std::string which lies exactly halfway between
>+// two target floats.
>+//
>+// mantissa and exponent represent the precise value between two floating point
>+// numbers, `expected_low` and `expected_high`.  The floating point
>+// representation to parse in `StrCat(mantissa, "e", exponent)`.
>+//
>+// This function checks that an input just slightly less than the exact value
>+// is rounded down to `expected_low`, and an input just slightly greater than
>+// the exact value is rounded up to `expected_high`.
>+//
>+// The exact value should round to `expected_half`, which must be either
>+// `expected_low` or `expected_high`.
>+template <typename FloatType>
>+void TestHalfwayValue(const std::string& mantissa, int exponent,
>+                      FloatType expected_low, FloatType expected_high,
>+                      FloatType expected_half) {
>+  std::string low_rep = mantissa;
>+  low_rep[low_rep.size() - 1] -= 1;
>+  absl::StrAppend(&low_rep, std::string(1000, '9'), "e", exponent);
>+
>+  FloatType actual_low = 0;
>+  absl::from_chars(low_rep.data(), low_rep.data() + low_rep.size(), actual_low);
>+  EXPECT_EQ(expected_low, actual_low);
>+
>+  std::string high_rep = absl::StrCat(mantissa, std::string(1000, '0'), "1e", exponent);
>+  FloatType actual_high = 0;
>+  absl::from_chars(high_rep.data(), high_rep.data() + high_rep.size(),
>+                   actual_high);
>+  EXPECT_EQ(expected_high, actual_high);
>+
>+  std::string halfway_rep = absl::StrCat(mantissa, "e", exponent);
>+  FloatType actual_half = 0;
>+  absl::from_chars(halfway_rep.data(), halfway_rep.data() + halfway_rep.size(),
>+                   actual_half);
>+  EXPECT_EQ(expected_half, actual_half);
>+}
>+
>+TEST(FromChars, DoubleRounding) {
>+  const double zero = 0.0;
>+  const double first_subnormal = nextafter(zero, 1.0);
>+  const double second_subnormal = nextafter(first_subnormal, 1.0);
>+
>+  const double first_normal = DBL_MIN;
>+  const double last_subnormal = nextafter(first_normal, 0.0);
>+  const double second_normal = nextafter(first_normal, 1.0);
>+
>+  const double last_normal = DBL_MAX;
>+  const double penultimate_normal = nextafter(last_normal, 0.0);
>+
>+  // Various test cases for numbers between two representable floats.  Each
>+  // call to TestHalfwayValue tests a number just below and just above the
>+  // halfway point, as well as the number exactly between them.
>+
>+  // Test between zero and first_subnormal.  Round-to-even tie rounds down.
>+  TestHalfwayValue(
>+      "2."
>+      "470328229206232720882843964341106861825299013071623822127928412503377536"
>+      "351043759326499181808179961898982823477228588654633283551779698981993873"
>+      "980053909390631503565951557022639229085839244910518443593180284993653615"
>+      "250031937045767824921936562366986365848075700158576926990370631192827955"
>+      "855133292783433840935197801553124659726357957462276646527282722005637400"
>+      "648549997709659947045402082816622623785739345073633900796776193057750674"
>+      "017632467360096895134053553745851666113422376667860416215968046191446729"
>+      "184030053005753084904876539171138659164623952491262365388187963623937328"
>+      "042389101867234849766823508986338858792562830275599565752445550725518931"
>+      "369083625477918694866799496832404970582102851318545139621383772282614543"
>+      "7693412532098591327667236328125",
>+      -324, zero, first_subnormal, zero);
>+
>+  // first_subnormal and second_subnormal.  Round-to-even tie rounds up.
>+  TestHalfwayValue(
>+      "7."
>+      "410984687618698162648531893023320585475897039214871466383785237510132609"
>+      "053131277979497545424539885696948470431685765963899850655339096945981621"
>+      "940161728171894510697854671067917687257517734731555330779540854980960845"
>+      "750095811137303474765809687100959097544227100475730780971111893578483867"
>+      "565399878350301522805593404659373979179073872386829939581848166016912201"
>+      "945649993128979841136206248449867871357218035220901702390328579173252022"
>+      "052897402080290685402160661237554998340267130003581248647904138574340187"
>+      "552090159017259254714629617513415977493871857473787096164563890871811984"
>+      "127167305601704549300470526959016576377688490826798697257336652176556794"
>+      "107250876433756084600398490497214911746308553955635418864151316847843631"
>+      "3080237596295773983001708984375",
>+      -324, first_subnormal, second_subnormal, second_subnormal);
>+
>+  // last_subnormal and first_normal.  Round-to-even tie rounds up.
>+  TestHalfwayValue(
>+      "2."
>+      "225073858507201136057409796709131975934819546351645648023426109724822222"
>+      "021076945516529523908135087914149158913039621106870086438694594645527657"
>+      "207407820621743379988141063267329253552286881372149012981122451451889849"
>+      "057222307285255133155755015914397476397983411801999323962548289017107081"
>+      "850690630666655994938275772572015763062690663332647565300009245888316433"
>+      "037779791869612049497390377829704905051080609940730262937128958950003583"
>+      "799967207254304360284078895771796150945516748243471030702609144621572289"
>+      "880258182545180325707018860872113128079512233426288368622321503775666622"
>+      "503982534335974568884423900265498198385487948292206894721689831099698365"
>+      "846814022854243330660339850886445804001034933970427567186443383770486037"
>+      "86162277173854562306587467901408672332763671875",
>+      -308, last_subnormal, first_normal, first_normal);
>+
>+  // first_normal and second_normal.  Round-to-even tie rounds down.
>+  TestHalfwayValue(
>+      "2."
>+      "225073858507201630123055637955676152503612414573018013083228724049586647"
>+      "606759446192036794116886953213985520549032000903434781884412325572184367"
>+      "563347617020518175998922941393629966742598285899994830148971433555578567"
>+      "693279306015978183162142425067962460785295885199272493577688320732492479"
>+      "924816869232247165964934329258783950102250973957579510571600738343645738"
>+      "494324192997092179207389919761694314131497173265255020084997973676783743"
>+      "155205818804439163810572367791175177756227497413804253387084478193655533"
>+      "073867420834526162513029462022730109054820067654020201547112002028139700"
>+      "141575259123440177362244273712468151750189745559978653234255886219611516"
>+      "335924167958029604477064946470184777360934300451421683607013647479513962"
>+      "13837722826145437693412532098591327667236328125",
>+      -308, first_normal, second_normal, first_normal);
>+
>+  // penultimate_normal and last_normal.  Round-to-even rounds down.
>+  TestHalfwayValue(
>+      "1."
>+      "797693134862315608353258760581052985162070023416521662616611746258695532"
>+      "672923265745300992879465492467506314903358770175220871059269879629062776"
>+      "047355692132901909191523941804762171253349609463563872612866401980290377"
>+      "995141836029815117562837277714038305214839639239356331336428021390916694"
>+      "57927874464075218944",
>+      308, penultimate_normal, last_normal, penultimate_normal);
>+}
>+
>+// Same test cases as DoubleRounding, now with new and improved Much Smaller
>+// Precision!
>+TEST(FromChars, FloatRounding) {
>+  const float zero = 0.0;
>+  const float first_subnormal = nextafterf(zero, 1.0);
>+  const float second_subnormal = nextafterf(first_subnormal, 1.0);
>+
>+  const float first_normal = FLT_MIN;
>+  const float last_subnormal = nextafterf(first_normal, 0.0);
>+  const float second_normal = nextafterf(first_normal, 1.0);
>+
>+  const float last_normal = FLT_MAX;
>+  const float penultimate_normal = nextafterf(last_normal, 0.0);
>+
>+  // Test between zero and first_subnormal.  Round-to-even tie rounds down.
>+  TestHalfwayValue(
>+      "7."
>+      "006492321624085354618647916449580656401309709382578858785341419448955413"
>+      "42930300743319094181060791015625",
>+      -46, zero, first_subnormal, zero);
>+
>+  // first_subnormal and second_subnormal.  Round-to-even tie rounds up.
>+  TestHalfwayValue(
>+      "2."
>+      "101947696487225606385594374934874196920392912814773657635602425834686624"
>+      "028790902229957282543182373046875",
>+      -45, first_subnormal, second_subnormal, second_subnormal);
>+
>+  // last_subnormal and first_normal.  Round-to-even tie rounds up.
>+  TestHalfwayValue(
>+      "1."
>+      "175494280757364291727882991035766513322858992758990427682963118425003064"
>+      "9651730385585324256680905818939208984375",
>+      -38, last_subnormal, first_normal, first_normal);
>+
>+  // first_normal and second_normal.  Round-to-even tie rounds down.
>+  TestHalfwayValue(
>+      "1."
>+      "175494420887210724209590083408724842314472120785184615334540294131831453"
>+      "9442813071445925743319094181060791015625",
>+      -38, first_normal, second_normal, first_normal);
>+
>+  // penultimate_normal and last_normal.  Round-to-even rounds down.
>+  TestHalfwayValue("3.40282336497324057985868971510891282432", 38,
>+                   penultimate_normal, last_normal, penultimate_normal);
>+}
>+
>+TEST(FromChars, Underflow) {
>+  // Check that underflow is handled correctly, according to the specification
>+  // in DR 3081.
>+  double d;
>+  float f;
>+  absl::from_chars_result result;
>+
>+  std::string negative_underflow = "-1e-1000";
>+  const char* begin = negative_underflow.data();
>+  const char* end = begin + negative_underflow.size();
>+  d = 100.0;
>+  result = absl::from_chars(begin, end, d);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_TRUE(std::signbit(d));  // negative
>+  EXPECT_GE(d, -std::numeric_limits<double>::min());
>+  f = 100.0;
>+  result = absl::from_chars(begin, end, f);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_TRUE(std::signbit(f));  // negative
>+  EXPECT_GE(f, -std::numeric_limits<float>::min());
>+
>+  std::string positive_underflow = "1e-1000";
>+  begin = positive_underflow.data();
>+  end = begin + positive_underflow.size();
>+  d = -100.0;
>+  result = absl::from_chars(begin, end, d);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_FALSE(std::signbit(d));  // positive
>+  EXPECT_LE(d, std::numeric_limits<double>::min());
>+  f = -100.0;
>+  result = absl::from_chars(begin, end, f);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_FALSE(std::signbit(f));  // positive
>+  EXPECT_LE(f, std::numeric_limits<float>::min());
>+}
>+
>+TEST(FromChars, Overflow) {
>+  // Check that overflow is handled correctly, according to the specification
>+  // in DR 3081.
>+  double d;
>+  float f;
>+  absl::from_chars_result result;
>+
>+  std::string negative_overflow = "-1e1000";
>+  const char* begin = negative_overflow.data();
>+  const char* end = begin + negative_overflow.size();
>+  d = 100.0;
>+  result = absl::from_chars(begin, end, d);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_TRUE(std::signbit(d));  // negative
>+  EXPECT_EQ(d, -std::numeric_limits<double>::max());
>+  f = 100.0;
>+  result = absl::from_chars(begin, end, f);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_TRUE(std::signbit(f));  // negative
>+  EXPECT_EQ(f, -std::numeric_limits<float>::max());
>+
>+  std::string positive_overflow = "1e1000";
>+  begin = positive_overflow.data();
>+  end = begin + positive_overflow.size();
>+  d = -100.0;
>+  result = absl::from_chars(begin, end, d);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_FALSE(std::signbit(d));  // positive
>+  EXPECT_EQ(d, std::numeric_limits<double>::max());
>+  f = -100.0;
>+  result = absl::from_chars(begin, end, f);
>+  EXPECT_EQ(result.ptr, end);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_FALSE(std::signbit(f));  // positive
>+  EXPECT_EQ(f, std::numeric_limits<float>::max());
>+}
>+
>+TEST(FromChars, ReturnValuePtr) {
>+  // Check that `ptr` points one past the number scanned, even if that number
>+  // is not representable.
>+  double d;
>+  absl::from_chars_result result;
>+
>+  std::string normal = "3.14@#$%@#$%";
>+  result = absl::from_chars(normal.data(), normal.data() + normal.size(), d);
>+  EXPECT_EQ(result.ec, std::errc());
>+  EXPECT_EQ(result.ptr - normal.data(), 4);
>+
>+  std::string overflow = "1e1000@#$%@#$%";
>+  result = absl::from_chars(overflow.data(),
>+                            overflow.data() + overflow.size(), d);
>+  EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+  EXPECT_EQ(result.ptr - overflow.data(), 6);
>+
>+  std::string garbage = "#$%@#$%";
>+  result = absl::from_chars(garbage.data(),
>+                            garbage.data() + garbage.size(), d);
>+  EXPECT_EQ(result.ec, std::errc::invalid_argument);
>+  EXPECT_EQ(result.ptr - garbage.data(), 0);
>+}
>+
>+// Check for a wide range of inputs that strtod() and absl::from_chars() exactly
>+// agree on the conversion amount.
>+//
>+// This test assumes the platform's strtod() uses perfect round_to_nearest
>+// rounding.
>+TEST(FromChars, TestVersusStrtod) {
>+  for (int mantissa = 1000000; mantissa <= 9999999; mantissa += 501) {
>+    for (int exponent = -300; exponent < 300; ++exponent) {
>+      std::string candidate = absl::StrCat(mantissa, "e", exponent);
>+      double strtod_value = strtod(candidate.c_str(), nullptr);
>+      double absl_value = 0;
>+      absl::from_chars(candidate.data(), candidate.data() + candidate.size(),
>+                       absl_value);
>+      ASSERT_EQ(strtod_value, absl_value) << candidate;
>+    }
>+  }
>+}
>+
>+// Check for a wide range of inputs that strtof() and absl::from_chars() exactly
>+// agree on the conversion amount.
>+//
>+// This test assumes the platform's strtof() uses perfect round_to_nearest
>+// rounding.
>+TEST(FromChars, TestVersusStrtof) {
>+  for (int mantissa = 1000000; mantissa <= 9999999; mantissa += 501) {
>+    for (int exponent = -43; exponent < 32; ++exponent) {
>+      std::string candidate = absl::StrCat(mantissa, "e", exponent);
>+      float strtod_value = strtof(candidate.c_str(), nullptr);
>+      float absl_value = 0;
>+      absl::from_chars(candidate.data(), candidate.data() + candidate.size(),
>+                       absl_value);
>+      ASSERT_EQ(strtod_value, absl_value) << candidate;
>+    }
>+  }
>+}
>+
>+// Tests if two floating point values have identical bit layouts.  (EXPECT_EQ
>+// is not suitable for NaN testing, since NaNs are never equal.)
>+template <typename Float>
>+bool Identical(Float a, Float b) {
>+  return 0 == memcmp(&a, &b, sizeof(Float));
>+}
>+
>+// Check that NaNs are parsed correctly.  The spec requires that
>+// std::from_chars on "NaN(123abc)" return the same value as std::nan("123abc").
>+// How such an n-char-sequence affects the generated NaN is unspecified, so we
>+// just test for symmetry with std::nan and strtod here.
>+//
>+// (In Linux, this parses the value as a number and stuffs that number into the
>+// free bits of a quiet NaN.)
>+TEST(FromChars, NaNDoubles) {
>+  for (std::string n_char_sequence :
>+       {"", "1", "2", "3", "fff", "FFF", "200000", "400000", "4000000000000",
>+        "8000000000000", "abc123", "legal_but_unexpected",
>+        "99999999999999999999999", "_"}) {
>+    std::string input = absl::StrCat("nan(", n_char_sequence, ")");
>+    SCOPED_TRACE(input);
>+    double from_chars_double;
>+    absl::from_chars(input.data(), input.data() + input.size(),
>+                     from_chars_double);
>+    double std_nan_double = std::nan(n_char_sequence.c_str());
>+    EXPECT_TRUE(Identical(from_chars_double, std_nan_double));
>+
>+    // Also check that we match strtod()'s behavior.  This test assumes that the
>+    // platform has a compliant strtod().
>+#if ABSL_STRTOD_HANDLES_NAN_CORRECTLY
>+    double strtod_double = strtod(input.c_str(), nullptr);
>+    EXPECT_TRUE(Identical(from_chars_double, strtod_double));
>+#endif  // ABSL_STRTOD_HANDLES_NAN_CORRECTLY
>+
>+    // Check that we can parse a negative NaN
>+    std::string negative_input = "-" + input;
>+    double negative_from_chars_double;
>+    absl::from_chars(negative_input.data(),
>+                     negative_input.data() + negative_input.size(),
>+                     negative_from_chars_double);
>+    EXPECT_TRUE(std::signbit(negative_from_chars_double));
>+    EXPECT_FALSE(Identical(negative_from_chars_double, from_chars_double));
>+    from_chars_double = std::copysign(from_chars_double, -1.0);
>+    EXPECT_TRUE(Identical(negative_from_chars_double, from_chars_double));
>+  }
>+}
>+
>+TEST(FromChars, NaNFloats) {
>+  for (std::string n_char_sequence :
>+       {"", "1", "2", "3", "fff", "FFF", "200000", "400000", "4000000000000",
>+        "8000000000000", "abc123", "legal_but_unexpected",
>+        "99999999999999999999999", "_"}) {
>+    std::string input = absl::StrCat("nan(", n_char_sequence, ")");
>+    SCOPED_TRACE(input);
>+    float from_chars_float;
>+    absl::from_chars(input.data(), input.data() + input.size(),
>+                     from_chars_float);
>+    float std_nan_float = std::nanf(n_char_sequence.c_str());
>+    EXPECT_TRUE(Identical(from_chars_float, std_nan_float));
>+
>+    // Also check that we match strtof()'s behavior.  This test assumes that the
>+    // platform has a compliant strtof().
>+#if ABSL_STRTOD_HANDLES_NAN_CORRECTLY
>+    float strtof_float = strtof(input.c_str(), nullptr);
>+    EXPECT_TRUE(Identical(from_chars_float, strtof_float));
>+#endif  // ABSL_STRTOD_HANDLES_NAN_CORRECTLY
>+
>+    // Check that we can parse a negative NaN
>+    std::string negative_input = "-" + input;
>+    float negative_from_chars_float;
>+    absl::from_chars(negative_input.data(),
>+                     negative_input.data() + negative_input.size(),
>+                     negative_from_chars_float);
>+    EXPECT_TRUE(std::signbit(negative_from_chars_float));
>+    EXPECT_FALSE(Identical(negative_from_chars_float, from_chars_float));
>+    from_chars_float = std::copysign(from_chars_float, -1.0);
>+    EXPECT_TRUE(Identical(negative_from_chars_float, from_chars_float));
>+  }
>+}
>+
>+// Returns an integer larger than step.  The values grow exponentially.
>+int NextStep(int step) {
>+  return step + (step >> 2) + 1;
>+}
>+
>+// Test a conversion on a family of input strings, checking that the calculation
>+// is correct for in-bounds values, and that overflow and underflow are done
>+// correctly for out-of-bounds values.
>+//
>+// input_generator maps from an integer index to a std::string to test.
>+// expected_generator maps from an integer index to an expected Float value.
>+// from_chars conversion of input_generator(i) should result in
>+// expected_generator(i).
>+//
>+// lower_bound and upper_bound denote the smallest and largest values for which
>+// the conversion is expected to succeed.
>+template <typename Float>
>+void TestOverflowAndUnderflow(
>+    const std::function<std::string(int)>& input_generator,
>+    const std::function<Float(int)>& expected_generator, int lower_bound,
>+    int upper_bound) {
>+  // test legal values near lower_bound
>+  int index, step;
>+  for (index = lower_bound, step = 1; index < upper_bound;
>+       index += step, step = NextStep(step)) {
>+    std::string input = input_generator(index);
>+    SCOPED_TRACE(input);
>+    Float expected = expected_generator(index);
>+    Float actual;
>+    auto result =
>+        absl::from_chars(input.data(), input.data() + input.size(), actual);
>+    EXPECT_EQ(result.ec, std::errc());
>+    EXPECT_EQ(expected, actual);
>+  }
>+  // test legal values near upper_bound
>+  for (index = upper_bound, step = 1; index > lower_bound;
>+       index -= step, step = NextStep(step)) {
>+    std::string input = input_generator(index);
>+    SCOPED_TRACE(input);
>+    Float expected = expected_generator(index);
>+    Float actual;
>+    auto result =
>+        absl::from_chars(input.data(), input.data() + input.size(), actual);
>+    EXPECT_EQ(result.ec, std::errc());
>+    EXPECT_EQ(expected, actual);
>+  }
>+  // Test underflow values below lower_bound
>+  for (index = lower_bound - 1, step = 1; index > -1000000;
>+       index -= step, step = NextStep(step)) {
>+    std::string input = input_generator(index);
>+    SCOPED_TRACE(input);
>+    Float actual;
>+    auto result =
>+        absl::from_chars(input.data(), input.data() + input.size(), actual);
>+    EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+    EXPECT_LT(actual, 1.0);  // check for underflow
>+  }
>+  // Test overflow values above upper_bound
>+  for (index = upper_bound + 1, step = 1; index < 1000000;
>+       index += step, step = NextStep(step)) {
>+    std::string input = input_generator(index);
>+    SCOPED_TRACE(input);
>+    Float actual;
>+    auto result =
>+        absl::from_chars(input.data(), input.data() + input.size(), actual);
>+    EXPECT_EQ(result.ec, std::errc::result_out_of_range);
>+    EXPECT_GT(actual, 1.0);  // check for overflow
>+  }
>+}
>+
>+// Check that overflow and underflow are caught correctly for hex doubles.
>+//
>+// The largest representable double is 0x1.fffffffffffffp+1023, and the
>+// smallest representable subnormal is 0x0.0000000000001p-1022, which equals
>+// 0x1p-1074.  Therefore 1023 and -1074 are the limits of acceptable exponents
>+// in this test.
>+TEST(FromChars, HexdecimalDoubleLimits) {
>+  auto input_gen = [](int index) { return absl::StrCat("0x1.0p", index); };
>+  auto expected_gen = [](int index) { return std::ldexp(1.0, index); };
>+  TestOverflowAndUnderflow<double>(input_gen, expected_gen, -1074, 1023);
>+}
>+
>+// Check that overflow and underflow are caught correctly for hex floats.
>+//
>+// The largest representable float is 0x1.fffffep+127, and the smallest
>+// representable subnormal is 0x0.000002p-126, which equals 0x1p-149.
>+// Therefore 127 and -149 are the limits of acceptable exponents in this test.
>+TEST(FromChars, HexdecimalFloatLimits) {
>+  auto input_gen = [](int index) { return absl::StrCat("0x1.0p", index); };
>+  auto expected_gen = [](int index) { return std::ldexp(1.0f, index); };
>+  TestOverflowAndUnderflow<float>(input_gen, expected_gen, -149, 127);
>+}
>+
>+// Check that overflow and underflow are caught correctly for decimal doubles.
>+//
>+// The largest representable double is about 1.8e308, and the smallest
>+// representable subnormal is about 5e-324.  '1e-324' therefore rounds away from
>+// the smallest representable positive value.  -323 and 308 are the limits of
>+// acceptable exponents in this test.
>+TEST(FromChars, DecimalDoubleLimits) {
>+  auto input_gen = [](int index) { return absl::StrCat("1.0e", index); };
>+  auto expected_gen = [](int index) { return std::pow(10.0, index); };
>+  TestOverflowAndUnderflow<double>(input_gen, expected_gen, -323, 308);
>+}
>+
>+// Check that overflow and underflow are caught correctly for decimal floats.
>+//
>+// The largest representable float is about 3.4e38, and the smallest
>+// representable subnormal is about 1.45e-45.  '1e-45' therefore rounds towards
>+// the smallest representable positive value.  -45 and 38 are the limits of
>+// acceptable exponents in this test.
>+TEST(FromChars, DecimalFloatLimits) {
>+  auto input_gen = [](int index) { return absl::StrCat("1.0e", index); };
>+  auto expected_gen = [](int index) { return std::pow(10.0, index); };
>+  TestOverflowAndUnderflow<float>(input_gen, expected_gen, -45, 38);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fbc9f756315fa7fe9a7bb025d48c3fb284b9e8fb
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.cc
>@@ -0,0 +1,1109 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/escaping.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cstdint>
>+#include <cstring>
>+#include <iterator>
>+#include <limits>
>+#include <string>
>+
>+#include "absl/base/internal/endian.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/unaligned_access.h"
>+#include "absl/strings/internal/char_map.h"
>+#include "absl/strings/internal/resize_uninitialized.h"
>+#include "absl/strings/internal/utf8.h"
>+#include "absl/strings/str_cat.h"
>+#include "absl/strings/str_join.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace {
>+
>+// Digit conversion.
>+constexpr char kHexChar[] = "0123456789abcdef";
>+
>+constexpr char kHexTable[513] =
>+    "000102030405060708090a0b0c0d0e0f"
>+    "101112131415161718191a1b1c1d1e1f"
>+    "202122232425262728292a2b2c2d2e2f"
>+    "303132333435363738393a3b3c3d3e3f"
>+    "404142434445464748494a4b4c4d4e4f"
>+    "505152535455565758595a5b5c5d5e5f"
>+    "606162636465666768696a6b6c6d6e6f"
>+    "707172737475767778797a7b7c7d7e7f"
>+    "808182838485868788898a8b8c8d8e8f"
>+    "909192939495969798999a9b9c9d9e9f"
>+    "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf"
>+    "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
>+    "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
>+    "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
>+    "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
>+    "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff";
>+
>+// These are used for the leave_nulls_escaped argument to CUnescapeInternal().
>+constexpr bool kUnescapeNulls = false;
>+
>+inline bool is_octal_digit(char c) { return ('0' <= c) && (c <= '7'); }
>+
>+inline int hex_digit_to_int(char c) {
>+  static_assert('0' == 0x30 && 'A' == 0x41 && 'a' == 0x61,
>+                "Character set must be ASCII.");
>+  assert(absl::ascii_isxdigit(c));
>+  int x = static_cast<unsigned char>(c);
>+  if (x > '9') {
>+    x += 9;
>+  }
>+  return x & 0xf;
>+}
>+
>+inline bool IsSurrogate(char32_t c, absl::string_view src, std::string* error) {
>+  if (c >= 0xD800 && c <= 0xDFFF) {
>+    if (error) {
>+      *error = absl::StrCat("invalid surrogate character (0xD800-DFFF): \\",
>+                            src);
>+    }
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// ----------------------------------------------------------------------
>+// CUnescapeInternal()
>+//    Implements both CUnescape() and CUnescapeForNullTerminatedString().
>+//
>+//    Unescapes C escape sequences and is the reverse of CEscape().
>+//
>+//    If 'source' is valid, stores the unescaped std::string and its size in
>+//    'dest' and 'dest_len' respectively, and returns true. Otherwise
>+//    returns false and optionally stores the error description in
>+//    'error'. Set 'error' to nullptr to disable error reporting.
>+//
>+//    'dest' should point to a buffer that is at least as big as 'source'.
>+//    'source' and 'dest' may be the same.
>+//
>+//     NOTE: any changes to this function must also be reflected in the older
>+//     UnescapeCEscapeSequences().
>+// ----------------------------------------------------------------------
>+bool CUnescapeInternal(absl::string_view source, bool leave_nulls_escaped,
>+                       char* dest, ptrdiff_t* dest_len, std::string* error) {
>+  char* d = dest;
>+  const char* p = source.data();
>+  const char* end = source.end();
>+  const char* last_byte = end - 1;
>+
>+  // Small optimization for case where source = dest and there's no escaping
>+  while (p == d && p < end && *p != '\\') p++, d++;
>+
>+  while (p < end) {
>+    if (*p != '\\') {
>+      *d++ = *p++;
>+    } else {
>+      if (++p > last_byte) {  // skip past the '\\'
>+        if (error) *error = "String cannot end with \\";
>+        return false;
>+      }
>+      switch (*p) {
>+        case 'a':  *d++ = '\a';  break;
>+        case 'b':  *d++ = '\b';  break;
>+        case 'f':  *d++ = '\f';  break;
>+        case 'n':  *d++ = '\n';  break;
>+        case 'r':  *d++ = '\r';  break;
>+        case 't':  *d++ = '\t';  break;
>+        case 'v':  *d++ = '\v';  break;
>+        case '\\': *d++ = '\\';  break;
>+        case '?':  *d++ = '\?';  break;    // \?  Who knew?
>+        case '\'': *d++ = '\'';  break;
>+        case '"':  *d++ = '\"';  break;
>+        case '0':
>+        case '1':
>+        case '2':
>+        case '3':
>+        case '4':
>+        case '5':
>+        case '6':
>+        case '7': {
>+          // octal digit: 1 to 3 digits
>+          const char* octal_start = p;
>+          unsigned int ch = *p - '0';
>+          if (p < last_byte && is_octal_digit(p[1])) ch = ch * 8 + *++p - '0';
>+          if (p < last_byte && is_octal_digit(p[1]))
>+            ch = ch * 8 + *++p - '0';      // now points at last digit
>+          if (ch > 0xff) {
>+            if (error) {
>+              *error = "Value of \\" +
>+                       std::string(octal_start, p + 1 - octal_start) +
>+                       " exceeds 0xff";
>+            }
>+            return false;
>+          }
>+          if ((ch == 0) && leave_nulls_escaped) {
>+            // Copy the escape sequence for the null character
>+            const ptrdiff_t octal_size = p + 1 - octal_start;
>+            *d++ = '\\';
>+            memcpy(d, octal_start, octal_size);
>+            d += octal_size;
>+            break;
>+          }
>+          *d++ = ch;
>+          break;
>+        }
>+        case 'x':
>+        case 'X': {
>+          if (p >= last_byte) {
>+            if (error) *error = "String cannot end with \\x";
>+            return false;
>+          } else if (!absl::ascii_isxdigit(p[1])) {
>+            if (error) *error = "\\x cannot be followed by a non-hex digit";
>+            return false;
>+          }
>+          unsigned int ch = 0;
>+          const char* hex_start = p;
>+          while (p < last_byte && absl::ascii_isxdigit(p[1]))
>+            // Arbitrarily many hex digits
>+            ch = (ch << 4) + hex_digit_to_int(*++p);
>+          if (ch > 0xFF) {
>+            if (error) {
>+              *error = "Value of \\" + std::string(hex_start, p + 1 - hex_start) +
>+                       " exceeds 0xff";
>+            }
>+            return false;
>+          }
>+          if ((ch == 0) && leave_nulls_escaped) {
>+            // Copy the escape sequence for the null character
>+            const ptrdiff_t hex_size = p + 1 - hex_start;
>+            *d++ = '\\';
>+            memcpy(d, hex_start, hex_size);
>+            d += hex_size;
>+            break;
>+          }
>+          *d++ = ch;
>+          break;
>+        }
>+        case 'u': {
>+          // \uhhhh => convert 4 hex digits to UTF-8
>+          char32_t rune = 0;
>+          const char* hex_start = p;
>+          if (p + 4 >= end) {
>+            if (error) {
>+              *error = "\\u must be followed by 4 hex digits: \\" +
>+                       std::string(hex_start, p + 1 - hex_start);
>+            }
>+            return false;
>+          }
>+          for (int i = 0; i < 4; ++i) {
>+            // Look one char ahead.
>+            if (absl::ascii_isxdigit(p[1])) {
>+              rune = (rune << 4) + hex_digit_to_int(*++p);  // Advance p.
>+            } else {
>+              if (error) {
>+                *error = "\\u must be followed by 4 hex digits: \\" +
>+                         std::string(hex_start, p + 1 - hex_start);
>+              }
>+              return false;
>+            }
>+          }
>+          if ((rune == 0) && leave_nulls_escaped) {
>+            // Copy the escape sequence for the null character
>+            *d++ = '\\';
>+            memcpy(d, hex_start, 5);  // u0000
>+            d += 5;
>+            break;
>+          }
>+          if (IsSurrogate(rune, absl::string_view(hex_start, 5), error)) {
>+            return false;
>+          }
>+          d += strings_internal::EncodeUTF8Char(d, rune);
>+          break;
>+        }
>+        case 'U': {
>+          // \Uhhhhhhhh => convert 8 hex digits to UTF-8
>+          char32_t rune = 0;
>+          const char* hex_start = p;
>+          if (p + 8 >= end) {
>+            if (error) {
>+              *error = "\\U must be followed by 8 hex digits: \\" +
>+                       std::string(hex_start, p + 1 - hex_start);
>+            }
>+            return false;
>+          }
>+          for (int i = 0; i < 8; ++i) {
>+            // Look one char ahead.
>+            if (absl::ascii_isxdigit(p[1])) {
>+              // Don't change rune until we're sure this
>+              // is within the Unicode limit, but do advance p.
>+              uint32_t newrune = (rune << 4) + hex_digit_to_int(*++p);
>+              if (newrune > 0x10FFFF) {
>+                if (error) {
>+                  *error = "Value of \\" +
>+                           std::string(hex_start, p + 1 - hex_start) +
>+                           " exceeds Unicode limit (0x10FFFF)";
>+                }
>+                return false;
>+              } else {
>+                rune = newrune;
>+              }
>+            } else {
>+              if (error) {
>+                *error = "\\U must be followed by 8 hex digits: \\" +
>+                         std::string(hex_start, p + 1 - hex_start);
>+              }
>+              return false;
>+            }
>+          }
>+          if ((rune == 0) && leave_nulls_escaped) {
>+            // Copy the escape sequence for the null character
>+            *d++ = '\\';
>+            memcpy(d, hex_start, 9);  // U00000000
>+            d += 9;
>+            break;
>+          }
>+          if (IsSurrogate(rune, absl::string_view(hex_start, 9), error)) {
>+            return false;
>+          }
>+          d += strings_internal::EncodeUTF8Char(d, rune);
>+          break;
>+        }
>+        default: {
>+          if (error) *error = std::string("Unknown escape sequence: \\") + *p;
>+          return false;
>+        }
>+      }
>+      p++;                                 // read past letter we escaped
>+    }
>+  }
>+  *dest_len = d - dest;
>+  return true;
>+}
>+
>+// ----------------------------------------------------------------------
>+// CUnescapeInternal()
>+//
>+//    Same as above but uses a C++ std::string for output. 'source' and 'dest'
>+//    may be the same.
>+// ----------------------------------------------------------------------
>+bool CUnescapeInternal(absl::string_view source, bool leave_nulls_escaped,
>+                       std::string* dest, std::string* error) {
>+  strings_internal::STLStringResizeUninitialized(dest, source.size());
>+
>+  ptrdiff_t dest_size;
>+  if (!CUnescapeInternal(source,
>+                         leave_nulls_escaped,
>+                         const_cast<char*>(dest->data()),
>+                         &dest_size,
>+                         error)) {
>+    return false;
>+  }
>+  dest->erase(dest_size);
>+  return true;
>+}
>+
>+// ----------------------------------------------------------------------
>+// CEscape()
>+// CHexEscape()
>+// Utf8SafeCEscape()
>+// Utf8SafeCHexEscape()
>+//    Escapes 'src' using C-style escape sequences.  This is useful for
>+//    preparing query flags.  The 'Hex' version uses hexadecimal rather than
>+//    octal sequences.  The 'Utf8Safe' version does not touch UTF-8 bytes.
>+//
>+//    Escaped chars: \n, \r, \t, ", ', \, and !absl::ascii_isprint().
>+// ----------------------------------------------------------------------
>+std::string CEscapeInternal(absl::string_view src, bool use_hex, bool utf8_safe) {
>+  std::string dest;
>+  bool last_hex_escape = false;  // true if last output char was \xNN.
>+
>+  for (unsigned char c : src) {
>+    bool is_hex_escape = false;
>+    switch (c) {
>+      case '\n': dest.append("\\" "n"); break;
>+      case '\r': dest.append("\\" "r"); break;
>+      case '\t': dest.append("\\" "t"); break;
>+      case '\"': dest.append("\\" "\""); break;
>+      case '\'': dest.append("\\" "'"); break;
>+      case '\\': dest.append("\\" "\\"); break;
>+      default:
>+        // Note that if we emit \xNN and the src character after that is a hex
>+        // digit then that digit must be escaped too to prevent it being
>+        // interpreted as part of the character code by C.
>+        if ((!utf8_safe || c < 0x80) &&
>+            (!absl::ascii_isprint(c) ||
>+             (last_hex_escape && absl::ascii_isxdigit(c)))) {
>+          if (use_hex) {
>+            dest.append("\\" "x");
>+            dest.push_back(kHexChar[c / 16]);
>+            dest.push_back(kHexChar[c % 16]);
>+            is_hex_escape = true;
>+          } else {
>+            dest.append("\\");
>+            dest.push_back(kHexChar[c / 64]);
>+            dest.push_back(kHexChar[(c % 64) / 8]);
>+            dest.push_back(kHexChar[c % 8]);
>+          }
>+        } else {
>+          dest.push_back(c);
>+          break;
>+        }
>+    }
>+    last_hex_escape = is_hex_escape;
>+  }
>+
>+  return dest;
>+}
>+
>+/* clang-format off */
>+constexpr char c_escaped_len[256] = {
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 4, 4, 2, 4, 4,  // \t, \n, \r
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1,  // ", '
>+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  // '0'..'9'
>+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  // 'A'..'O'
>+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1,  // 'P'..'Z', '\'
>+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  // 'a'..'o'
>+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4,  // 'p'..'z', DEL
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
>+};
>+/* clang-format on */
>+
>+// Calculates the length of the C-style escaped version of 'src'.
>+// Assumes that non-printable characters are escaped using octal sequences, and
>+// that UTF-8 bytes are not handled specially.
>+inline size_t CEscapedLength(absl::string_view src) {
>+  size_t escaped_len = 0;
>+  for (unsigned char c : src) escaped_len += c_escaped_len[c];
>+  return escaped_len;
>+}
>+
>+void CEscapeAndAppendInternal(absl::string_view src, std::string* dest) {
>+  size_t escaped_len = CEscapedLength(src);
>+  if (escaped_len == src.size()) {
>+    dest->append(src.data(), src.size());
>+    return;
>+  }
>+
>+  size_t cur_dest_len = dest->size();
>+  strings_internal::STLStringResizeUninitialized(dest,
>+                                                 cur_dest_len + escaped_len);
>+  char* append_ptr = &(*dest)[cur_dest_len];
>+
>+  for (unsigned char c : src) {
>+    int char_len = c_escaped_len[c];
>+    if (char_len == 1) {
>+      *append_ptr++ = c;
>+    } else if (char_len == 2) {
>+      switch (c) {
>+        case '\n':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = 'n';
>+          break;
>+        case '\r':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = 'r';
>+          break;
>+        case '\t':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = 't';
>+          break;
>+        case '\"':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = '\"';
>+          break;
>+        case '\'':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = '\'';
>+          break;
>+        case '\\':
>+          *append_ptr++ = '\\';
>+          *append_ptr++ = '\\';
>+          break;
>+      }
>+    } else {
>+      *append_ptr++ = '\\';
>+      *append_ptr++ = '0' + c / 64;
>+      *append_ptr++ = '0' + (c % 64) / 8;
>+      *append_ptr++ = '0' + c % 8;
>+    }
>+  }
>+}
>+
>+bool Base64UnescapeInternal(const char* src_param, size_t szsrc, char* dest,
>+                            size_t szdest, const signed char* unbase64,
>+                            size_t* len) {
>+  static const char kPad64Equals = '=';
>+  static const char kPad64Dot = '.';
>+
>+  size_t destidx = 0;
>+  int decode = 0;
>+  int state = 0;
>+  unsigned int ch = 0;
>+  unsigned int temp = 0;
>+
>+  // If "char" is signed by default, using *src as an array index results in
>+  // accessing negative array elements. Treat the input as a pointer to
>+  // unsigned char to avoid this.
>+  const unsigned char* src = reinterpret_cast<const unsigned char*>(src_param);
>+
>+  // The GET_INPUT macro gets the next input character, skipping
>+  // over any whitespace, and stopping when we reach the end of the
>+  // std::string or when we read any non-data character.  The arguments are
>+  // an arbitrary identifier (used as a label for goto) and the number
>+  // of data bytes that must remain in the input to avoid aborting the
>+  // loop.
>+#define GET_INPUT(label, remain)                                \
>+  label:                                                        \
>+  --szsrc;                                                      \
>+  ch = *src++;                                                  \
>+  decode = unbase64[ch];                                        \
>+  if (decode < 0) {                                             \
>+    if (absl::ascii_isspace(ch) && szsrc >= remain) goto label; \
>+    state = 4 - remain;                                         \
>+    break;                                                      \
>+  }
>+
>+  // if dest is null, we're just checking to see if it's legal input
>+  // rather than producing output.  (I suspect this could just be done
>+  // with a regexp...).  We duplicate the loop so this test can be
>+  // outside it instead of in every iteration.
>+
>+  if (dest) {
>+    // This loop consumes 4 input bytes and produces 3 output bytes
>+    // per iteration.  We can't know at the start that there is enough
>+    // data left in the std::string for a full iteration, so the loop may
>+    // break out in the middle; if so 'state' will be set to the
>+    // number of input bytes read.
>+
>+    while (szsrc >= 4) {
>+      // We'll start by optimistically assuming that the next four
>+      // bytes of the std::string (src[0..3]) are four good data bytes
>+      // (that is, no nulls, whitespace, padding chars, or illegal
>+      // chars).  We need to test src[0..2] for nulls individually
>+      // before constructing temp to preserve the property that we
>+      // never read past a null in the std::string (no matter how long
>+      // szsrc claims the std::string is).
>+
>+      if (!src[0] || !src[1] || !src[2] ||
>+          ((temp = ((unsigned(unbase64[src[0]]) << 18) |
>+                    (unsigned(unbase64[src[1]]) << 12) |
>+                    (unsigned(unbase64[src[2]]) << 6) |
>+                    (unsigned(unbase64[src[3]])))) &
>+           0x80000000)) {
>+        // Iff any of those four characters was bad (null, illegal,
>+        // whitespace, padding), then temp's high bit will be set
>+        // (because unbase64[] is -1 for all bad characters).
>+        //
>+        // We'll back up and resort to the slower decoder, which knows
>+        // how to handle those cases.
>+
>+        GET_INPUT(first, 4);
>+        temp = decode;
>+        GET_INPUT(second, 3);
>+        temp = (temp << 6) | decode;
>+        GET_INPUT(third, 2);
>+        temp = (temp << 6) | decode;
>+        GET_INPUT(fourth, 1);
>+        temp = (temp << 6) | decode;
>+      } else {
>+        // We really did have four good data bytes, so advance four
>+        // characters in the std::string.
>+
>+        szsrc -= 4;
>+        src += 4;
>+      }
>+
>+      // temp has 24 bits of input, so write that out as three bytes.
>+
>+      if (destidx + 3 > szdest) return false;
>+      dest[destidx + 2] = temp;
>+      temp >>= 8;
>+      dest[destidx + 1] = temp;
>+      temp >>= 8;
>+      dest[destidx] = temp;
>+      destidx += 3;
>+    }
>+  } else {
>+    while (szsrc >= 4) {
>+      if (!src[0] || !src[1] || !src[2] ||
>+          ((temp = ((unsigned(unbase64[src[0]]) << 18) |
>+                    (unsigned(unbase64[src[1]]) << 12) |
>+                    (unsigned(unbase64[src[2]]) << 6) |
>+                    (unsigned(unbase64[src[3]])))) &
>+           0x80000000)) {
>+        GET_INPUT(first_no_dest, 4);
>+        GET_INPUT(second_no_dest, 3);
>+        GET_INPUT(third_no_dest, 2);
>+        GET_INPUT(fourth_no_dest, 1);
>+      } else {
>+        szsrc -= 4;
>+        src += 4;
>+      }
>+      destidx += 3;
>+    }
>+  }
>+
>+#undef GET_INPUT
>+
>+  // if the loop terminated because we read a bad character, return
>+  // now.
>+  if (decode < 0 && ch != kPad64Equals && ch != kPad64Dot &&
>+      !absl::ascii_isspace(ch))
>+    return false;
>+
>+  if (ch == kPad64Equals || ch == kPad64Dot) {
>+    // if we stopped by hitting an '=' or '.', un-read that character -- we'll
>+    // look at it again when we count to check for the proper number of
>+    // equals signs at the end.
>+    ++szsrc;
>+    --src;
>+  } else {
>+    // This loop consumes 1 input byte per iteration.  It's used to
>+    // clean up the 0-3 input bytes remaining when the first, faster
>+    // loop finishes.  'temp' contains the data from 'state' input
>+    // characters read by the first loop.
>+    while (szsrc > 0) {
>+      --szsrc;
>+      ch = *src++;
>+      decode = unbase64[ch];
>+      if (decode < 0) {
>+        if (absl::ascii_isspace(ch)) {
>+          continue;
>+        } else if (ch == kPad64Equals || ch == kPad64Dot) {
>+          // back up one character; we'll read it again when we check
>+          // for the correct number of pad characters at the end.
>+          ++szsrc;
>+          --src;
>+          break;
>+        } else {
>+          return false;
>+        }
>+      }
>+
>+      // Each input character gives us six bits of output.
>+      temp = (temp << 6) | decode;
>+      ++state;
>+      if (state == 4) {
>+        // If we've accumulated 24 bits of output, write that out as
>+        // three bytes.
>+        if (dest) {
>+          if (destidx + 3 > szdest) return false;
>+          dest[destidx + 2] = temp;
>+          temp >>= 8;
>+          dest[destidx + 1] = temp;
>+          temp >>= 8;
>+          dest[destidx] = temp;
>+        }
>+        destidx += 3;
>+        state = 0;
>+        temp = 0;
>+      }
>+    }
>+  }
>+
>+  // Process the leftover data contained in 'temp' at the end of the input.
>+  int expected_equals = 0;
>+  switch (state) {
>+    case 0:
>+      // Nothing left over; output is a multiple of 3 bytes.
>+      break;
>+
>+    case 1:
>+      // Bad input; we have 6 bits left over.
>+      return false;
>+
>+    case 2:
>+      // Produce one more output byte from the 12 input bits we have left.
>+      if (dest) {
>+        if (destidx + 1 > szdest) return false;
>+        temp >>= 4;
>+        dest[destidx] = temp;
>+      }
>+      ++destidx;
>+      expected_equals = 2;
>+      break;
>+
>+    case 3:
>+      // Produce two more output bytes from the 18 input bits we have left.
>+      if (dest) {
>+        if (destidx + 2 > szdest) return false;
>+        temp >>= 2;
>+        dest[destidx + 1] = temp;
>+        temp >>= 8;
>+        dest[destidx] = temp;
>+      }
>+      destidx += 2;
>+      expected_equals = 1;
>+      break;
>+
>+    default:
>+      // state should have no other values at this point.
>+      ABSL_RAW_LOG(FATAL, "This can't happen; base64 decoder state = %d",
>+                   state);
>+  }
>+
>+  // The remainder of the std::string should be all whitespace, mixed with
>+  // exactly 0 equals signs, or exactly 'expected_equals' equals
>+  // signs.  (Always accepting 0 equals signs is an Abseil extension
>+  // not covered in the RFC, as is accepting dot as the pad character.)
>+
>+  int equals = 0;
>+  while (szsrc > 0) {
>+    if (*src == kPad64Equals || *src == kPad64Dot)
>+      ++equals;
>+    else if (!absl::ascii_isspace(*src))
>+      return false;
>+    --szsrc;
>+    ++src;
>+  }
>+
>+  const bool ok = (equals == 0 || equals == expected_equals);
>+  if (ok) *len = destidx;
>+  return ok;
>+}
>+
>+// The arrays below were generated by the following code
>+// #include <sys/time.h>
>+// #include <stdlib.h>
>+// #include <std::string.h>
>+// main()
>+// {
>+//   static const char Base64[] =
>+//     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
>+//   char* pos;
>+//   int idx, i, j;
>+//   printf("    ");
>+//   for (i = 0; i < 255; i += 8) {
>+//     for (j = i; j < i + 8; j++) {
>+//       pos = strchr(Base64, j);
>+//       if ((pos == nullptr) || (j == 0))
>+//         idx = -1;
>+//       else
>+//         idx = pos - Base64;
>+//       if (idx == -1)
>+//         printf(" %2d,     ", idx);
>+//       else
>+//         printf(" %2d/*%c*/,", idx, j);
>+//     }
>+//     printf("\n    ");
>+//   }
>+// }
>+//
>+// where the value of "Base64[]" was replaced by one of the base-64 conversion
>+// tables from the functions below.
>+/* clang-format off */
>+constexpr signed char kUnBase64[] = {
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      62/*+*/, -1,      -1,      -1,      63/*/ */,
>+    52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/,
>+    60/*8*/, 61/*9*/, -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,       0/*A*/,  1/*B*/,  2/*C*/,  3/*D*/,  4/*E*/,  5/*F*/,  6/*G*/,
>+    07/*H*/,  8/*I*/,  9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/,
>+    15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/,
>+    23/*X*/, 24/*Y*/, 25/*Z*/, -1,      -1,      -1,      -1,      -1,
>+    -1,      26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/,
>+    33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/,
>+    41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/,
>+    49/*x*/, 50/*y*/, 51/*z*/, -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1
>+};
>+
>+constexpr signed char kUnWebSafeBase64[] = {
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      62/*-*/, -1,      -1,
>+    52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/,
>+    60/*8*/, 61/*9*/, -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,       0/*A*/,  1/*B*/,  2/*C*/,  3/*D*/,  4/*E*/,  5/*F*/,  6/*G*/,
>+    07/*H*/,  8/*I*/,  9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/,
>+    15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/,
>+    23/*X*/, 24/*Y*/, 25/*Z*/, -1,      -1,      -1,      -1,      63/*_*/,
>+    -1,      26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/,
>+    33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/,
>+    41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/,
>+    49/*x*/, 50/*y*/, 51/*z*/, -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
>+    -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1
>+};
>+/* clang-format on */
>+
>+size_t CalculateBase64EscapedLenInternal(size_t input_len, bool do_padding) {
>+  // Base64 encodes three bytes of input at a time. If the input is not
>+  // divisible by three, we pad as appropriate.
>+  //
>+  // (from http://tools.ietf.org/html/rfc3548)
>+  // Special processing is performed if fewer than 24 bits are available
>+  // at the end of the data being encoded.  A full encoding quantum is
>+  // always completed at the end of a quantity.  When fewer than 24 input
>+  // bits are available in an input group, zero bits are added (on the
>+  // right) to form an integral number of 6-bit groups.  Padding at the
>+  // end of the data is performed using the '=' character.  Since all base
>+  // 64 input is an integral number of octets, only the following cases
>+  // can arise:
>+
>+  // Base64 encodes each three bytes of input into four bytes of output.
>+  size_t len = (input_len / 3) * 4;
>+
>+  if (input_len % 3 == 0) {
>+    // (from http://tools.ietf.org/html/rfc3548)
>+    // (1) the final quantum of encoding input is an integral multiple of 24
>+    // bits; here, the final unit of encoded output will be an integral
>+    // multiple of 4 characters with no "=" padding,
>+  } else if (input_len % 3 == 1) {
>+    // (from http://tools.ietf.org/html/rfc3548)
>+    // (2) the final quantum of encoding input is exactly 8 bits; here, the
>+    // final unit of encoded output will be two characters followed by two
>+    // "=" padding characters, or
>+    len += 2;
>+    if (do_padding) {
>+      len += 2;
>+    }
>+  } else {  // (input_len % 3 == 2)
>+    // (from http://tools.ietf.org/html/rfc3548)
>+    // (3) the final quantum of encoding input is exactly 16 bits; here, the
>+    // final unit of encoded output will be three characters followed by one
>+    // "=" padding character.
>+    len += 3;
>+    if (do_padding) {
>+      len += 1;
>+    }
>+  }
>+
>+  assert(len >= input_len);  // make sure we didn't overflow
>+  return len;
>+}
>+
>+size_t Base64EscapeInternal(const unsigned char* src, size_t szsrc, char* dest,
>+                            size_t szdest, const char* base64,
>+                            bool do_padding) {
>+  static const char kPad64 = '=';
>+
>+  if (szsrc * 4 > szdest * 3) return 0;
>+
>+  char* cur_dest = dest;
>+  const unsigned char* cur_src = src;
>+
>+  char* const limit_dest = dest + szdest;
>+  const unsigned char* const limit_src = src + szsrc;
>+
>+  // Three bytes of data encodes to four characters of cyphertext.
>+  // So we can pump through three-byte chunks atomically.
>+  if (szsrc >= 3) {  // "limit_src - 3" is UB if szsrc < 3
>+    while (cur_src < limit_src - 3) {  // as long as we have >= 32 bits
>+      uint32_t in = absl::big_endian::Load32(cur_src) >> 8;
>+
>+      cur_dest[0] = base64[in >> 18];
>+      in &= 0x3FFFF;
>+      cur_dest[1] = base64[in >> 12];
>+      in &= 0xFFF;
>+      cur_dest[2] = base64[in >> 6];
>+      in &= 0x3F;
>+      cur_dest[3] = base64[in];
>+
>+      cur_dest += 4;
>+      cur_src += 3;
>+    }
>+  }
>+  // To save time, we didn't update szdest or szsrc in the loop.  So do it now.
>+  szdest = limit_dest - cur_dest;
>+  szsrc = limit_src - cur_src;
>+
>+  /* now deal with the tail (<=3 bytes) */
>+  switch (szsrc) {
>+    case 0:
>+      // Nothing left; nothing more to do.
>+      break;
>+    case 1: {
>+      // One byte left: this encodes to two characters, and (optionally)
>+      // two pad characters to round out the four-character cypherblock.
>+      if (szdest < 2) return 0;
>+      uint32_t in = cur_src[0];
>+      cur_dest[0] = base64[in >> 2];
>+      in &= 0x3;
>+      cur_dest[1] = base64[in << 4];
>+      cur_dest += 2;
>+      szdest -= 2;
>+      if (do_padding) {
>+        if (szdest < 2) return 0;
>+        cur_dest[0] = kPad64;
>+        cur_dest[1] = kPad64;
>+        cur_dest += 2;
>+        szdest -= 2;
>+      }
>+      break;
>+    }
>+    case 2: {
>+      // Two bytes left: this encodes to three characters, and (optionally)
>+      // one pad character to round out the four-character cypherblock.
>+      if (szdest < 3) return 0;
>+      uint32_t in = absl::big_endian::Load16(cur_src);
>+      cur_dest[0] = base64[in >> 10];
>+      in &= 0x3FF;
>+      cur_dest[1] = base64[in >> 4];
>+      in &= 0x00F;
>+      cur_dest[2] = base64[in << 2];
>+      cur_dest += 3;
>+      szdest -= 3;
>+      if (do_padding) {
>+        if (szdest < 1) return 0;
>+        cur_dest[0] = kPad64;
>+        cur_dest += 1;
>+        szdest -= 1;
>+      }
>+      break;
>+    }
>+    case 3: {
>+      // Three bytes left: same as in the big loop above.  We can't do this in
>+      // the loop because the loop above always reads 4 bytes, and the fourth
>+      // byte is past the end of the input.
>+      if (szdest < 4) return 0;
>+      uint32_t in = (cur_src[0] << 16) + absl::big_endian::Load16(cur_src + 1);
>+      cur_dest[0] = base64[in >> 18];
>+      in &= 0x3FFFF;
>+      cur_dest[1] = base64[in >> 12];
>+      in &= 0xFFF;
>+      cur_dest[2] = base64[in >> 6];
>+      in &= 0x3F;
>+      cur_dest[3] = base64[in];
>+      cur_dest += 4;
>+      szdest -= 4;
>+      break;
>+    }
>+    default:
>+      // Should not be reached: blocks of 4 bytes are handled
>+      // in the while loop before this switch statement.
>+      ABSL_RAW_LOG(FATAL, "Logic problem? szsrc = %zu", szsrc);
>+      break;
>+  }
>+  return (cur_dest - dest);
>+}
>+
>+constexpr char kBase64Chars[] =
>+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
>+
>+constexpr char kWebSafeBase64Chars[] =
>+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
>+
>+void Base64EscapeInternal(const unsigned char* src, size_t szsrc, std::string* dest,
>+                          bool do_padding, const char* base64_chars) {
>+  const size_t calc_escaped_size =
>+      CalculateBase64EscapedLenInternal(szsrc, do_padding);
>+  strings_internal::STLStringResizeUninitialized(dest, calc_escaped_size);
>+
>+  const size_t escaped_len = Base64EscapeInternal(
>+      src, szsrc, &(*dest)[0], dest->size(), base64_chars, do_padding);
>+  assert(calc_escaped_size == escaped_len);
>+  dest->erase(escaped_len);
>+}
>+
>+bool Base64UnescapeInternal(const char* src, size_t slen, std::string* dest,
>+                            const signed char* unbase64) {
>+  // Determine the size of the output std::string.  Base64 encodes every 3 bytes into
>+  // 4 characters.  any leftover chars are added directly for good measure.
>+  // This is documented in the base64 RFC: http://tools.ietf.org/html/rfc3548
>+  const size_t dest_len = 3 * (slen / 4) + (slen % 4);
>+
>+  strings_internal::STLStringResizeUninitialized(dest, dest_len);
>+
>+  // We are getting the destination buffer by getting the beginning of the
>+  // std::string and converting it into a char *.
>+  size_t len;
>+  const bool ok =
>+      Base64UnescapeInternal(src, slen, &(*dest)[0], dest_len, unbase64, &len);
>+  if (!ok) {
>+    dest->clear();
>+    return false;
>+  }
>+
>+  // could be shorter if there was padding
>+  assert(len <= dest_len);
>+  dest->erase(len);
>+
>+  return true;
>+}
>+
>+/* clang-format off */
>+constexpr char kHexValue[256] = {
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  1,  2,  3,  4,  5,  6, 7, 8, 9, 0, 0, 0, 0, 0, 0,  // '0'..'9'
>+    0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0,  // 'A'..'F'
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0,  // 'a'..'f'
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
>+    0,  0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0
>+};
>+/* clang-format on */
>+
>+// This is a templated function so that T can be either a char*
>+// or a std::string.  This works because we use the [] operator to access
>+// individual characters at a time.
>+template <typename T>
>+void HexStringToBytesInternal(const char* from, T to, ptrdiff_t num) {
>+  for (int i = 0; i < num; i++) {
>+    to[i] = (kHexValue[from[i * 2] & 0xFF] << 4) +
>+            (kHexValue[from[i * 2 + 1] & 0xFF]);
>+  }
>+}
>+
>+// This is a templated function so that T can be either a char* or a std::string.
>+template <typename T>
>+void BytesToHexStringInternal(const unsigned char* src, T dest, ptrdiff_t num) {
>+  auto dest_ptr = &dest[0];
>+  for (auto src_ptr = src; src_ptr != (src + num); ++src_ptr, dest_ptr += 2) {
>+    const char* hex_p = &kHexTable[*src_ptr * 2];
>+    std::copy(hex_p, hex_p + 2, dest_ptr);
>+  }
>+}
>+
>+}  // namespace
>+
>+// ----------------------------------------------------------------------
>+// CUnescape()
>+//
>+// See CUnescapeInternal() for implementation details.
>+// ----------------------------------------------------------------------
>+bool CUnescape(absl::string_view source, std::string* dest, std::string* error) {
>+  return CUnescapeInternal(source, kUnescapeNulls, dest, error);
>+}
>+
>+std::string CEscape(absl::string_view src) {
>+  std::string dest;
>+  CEscapeAndAppendInternal(src, &dest);
>+  return dest;
>+}
>+
>+std::string CHexEscape(absl::string_view src) {
>+  return CEscapeInternal(src, true, false);
>+}
>+
>+std::string Utf8SafeCEscape(absl::string_view src) {
>+  return CEscapeInternal(src, false, true);
>+}
>+
>+std::string Utf8SafeCHexEscape(absl::string_view src) {
>+  return CEscapeInternal(src, true, true);
>+}
>+
>+// ----------------------------------------------------------------------
>+// ptrdiff_t Base64Unescape() - base64 decoder
>+// ptrdiff_t Base64Escape() - base64 encoder
>+// ptrdiff_t WebSafeBase64Unescape() - Google's variation of base64 decoder
>+// ptrdiff_t WebSafeBase64Escape() - Google's variation of base64 encoder
>+//
>+// Check out
>+// http://tools.ietf.org/html/rfc2045 for formal description, but what we
>+// care about is that...
>+//   Take the encoded stuff in groups of 4 characters and turn each
>+//   character into a code 0 to 63 thus:
>+//           A-Z map to 0 to 25
>+//           a-z map to 26 to 51
>+//           0-9 map to 52 to 61
>+//           +(- for WebSafe) maps to 62
>+//           /(_ for WebSafe) maps to 63
>+//   There will be four numbers, all less than 64 which can be represented
>+//   by a 6 digit binary number (aaaaaa, bbbbbb, cccccc, dddddd respectively).
>+//   Arrange the 6 digit binary numbers into three bytes as such:
>+//   aaaaaabb bbbbcccc ccdddddd
>+//   Equals signs (one or two) are used at the end of the encoded block to
>+//   indicate that the text was not an integer multiple of three bytes long.
>+// ----------------------------------------------------------------------
>+
>+bool Base64Unescape(absl::string_view src, std::string* dest) {
>+  return Base64UnescapeInternal(src.data(), src.size(), dest, kUnBase64);
>+}
>+
>+bool WebSafeBase64Unescape(absl::string_view src, std::string* dest) {
>+  return Base64UnescapeInternal(src.data(), src.size(), dest, kUnWebSafeBase64);
>+}
>+
>+void Base64Escape(absl::string_view src, std::string* dest) {
>+  Base64EscapeInternal(reinterpret_cast<const unsigned char*>(src.data()),
>+                       src.size(), dest, true, kBase64Chars);
>+}
>+
>+void WebSafeBase64Escape(absl::string_view src, std::string* dest) {
>+  Base64EscapeInternal(reinterpret_cast<const unsigned char*>(src.data()),
>+                       src.size(), dest, false, kWebSafeBase64Chars);
>+}
>+
>+std::string HexStringToBytes(absl::string_view from) {
>+  std::string result;
>+  const auto num = from.size() / 2;
>+  strings_internal::STLStringResizeUninitialized(&result, num);
>+  absl::HexStringToBytesInternal<std::string&>(from.data(), result, num);
>+  return result;
>+}
>+
>+std::string BytesToHexString(absl::string_view from) {
>+  std::string result;
>+  strings_internal::STLStringResizeUninitialized(&result, 2 * from.size());
>+  absl::BytesToHexStringInternal<std::string&>(
>+      reinterpret_cast<const unsigned char*>(from.data()), result, from.size());
>+  return result;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7f1ab96d8ff15d56042b4659d66148214705f0a5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping.h
>@@ -0,0 +1,161 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: escaping.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains std::string utilities involved in escaping and
>+// unescaping strings in various ways.
>+//
>+
>+#ifndef ABSL_STRINGS_ESCAPING_H_
>+#define ABSL_STRINGS_ESCAPING_H_
>+
>+#include <cstddef>
>+#include <string>
>+#include <vector>
>+
>+#include "absl/base/macros.h"
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/str_join.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// CUnescape()
>+//
>+// Unescapes a `source` std::string and copies it into `dest`, rewriting C-style
>+// escape sequences (http://en.cppreference.com/w/cpp/language/escape) into
>+// their proper code point equivalents, returning `true` if successful.
>+//
>+// The following unescape sequences can be handled:
>+//
>+//   * ASCII escape sequences ('\n','\r','\\', etc.) to their ASCII equivalents
>+//   * Octal escape sequences ('\nnn') to byte nnn. The unescaped value must
>+//     resolve to a single byte or an error will occur. E.g. values greater than
>+//     0xff will produce an error.
>+//   * Hexadecimal escape sequences ('\xnn') to byte nn. While an arbitrary
>+//     number of following digits are allowed, the unescaped value must resolve
>+//     to a single byte or an error will occur. E.g. '\x0045' is equivalent to
>+//     '\x45', but '\x1234' will produce an error.
>+//   * Unicode escape sequences ('\unnnn' for exactly four hex digits or
>+//     '\Unnnnnnnn' for exactly eight hex digits, which will be encoded in
>+//     UTF-8. (E.g., `\u2019` unescapes to the three bytes 0xE2, 0x80, and
>+//     0x99).
>+//
>+//
>+// If any errors are encountered, this function returns `false` and stores the
>+// first encountered error in `error`. To disable error reporting, set `error`
>+// to `nullptr` or use the overload with no error reporting below.
>+//
>+// Example:
>+//
>+//   std::string s = "foo\\rbar\\nbaz\\t";
>+//   std::string unescaped_s;
>+//   if (!absl::CUnescape(s, &unescaped_s) {
>+//     ...
>+//   }
>+//   EXPECT_EQ(unescaped_s, "foo\rbar\nbaz\t");
>+bool CUnescape(absl::string_view source, std::string* dest, std::string* error);
>+
>+// Overload of `CUnescape()` with no error reporting.
>+inline bool CUnescape(absl::string_view source, std::string* dest) {
>+  return CUnescape(source, dest, nullptr);
>+}
>+
>+// CEscape()
>+//
>+// Escapes a 'src' std::string using C-style escapes sequences
>+// (http://en.cppreference.com/w/cpp/language/escape), escaping other
>+// non-printable/non-whitespace bytes as octal sequences (e.g. "\377").
>+//
>+// Example:
>+//
>+//   std::string s = "foo\rbar\tbaz\010\011\012\013\014\x0d\n";
>+//   std::string escaped_s = absl::CEscape(s);
>+//   EXPECT_EQ(escaped_s, "foo\\rbar\\tbaz\\010\\t\\n\\013\\014\\r\\n");
>+std::string CEscape(absl::string_view src);
>+
>+// CHexEscape()
>+//
>+// Escapes a 'src' std::string using C-style escape sequences, escaping
>+// other non-printable/non-whitespace bytes as hexadecimal sequences (e.g.
>+// "\xFF").
>+//
>+// Example:
>+//
>+//   std::string s = "foo\rbar\tbaz\010\011\012\013\014\x0d\n";
>+//   std::string escaped_s = absl::CHexEscape(s);
>+//   EXPECT_EQ(escaped_s, "foo\\rbar\\tbaz\\x08\\t\\n\\x0b\\x0c\\r\\n");
>+std::string CHexEscape(absl::string_view src);
>+
>+// Utf8SafeCEscape()
>+//
>+// Escapes a 'src' std::string using C-style escape sequences, escaping bytes as
>+// octal sequences, and passing through UTF-8 characters without conversion.
>+// I.e., when encountering any bytes with their high bit set, this function
>+// will not escape those values, whether or not they are valid UTF-8.
>+std::string Utf8SafeCEscape(absl::string_view src);
>+
>+// Utf8SafeCHexEscape()
>+//
>+// Escapes a 'src' std::string using C-style escape sequences, escaping bytes as
>+// hexadecimal sequences, and passing through UTF-8 characters without
>+// conversion.
>+std::string Utf8SafeCHexEscape(absl::string_view src);
>+
>+// Base64Unescape()
>+//
>+// Converts a `src` std::string encoded in Base64 to its binary equivalent, writing
>+// it to a `dest` buffer, returning `true` on success. If `src` contains invalid
>+// characters, `dest` is cleared and returns `false`.
>+bool Base64Unescape(absl::string_view src, std::string* dest);
>+
>+// WebSafeBase64Unescape(absl::string_view, std::string*)
>+//
>+// Converts a `src` std::string encoded in Base64 to its binary equivalent, writing
>+// it to a `dest` buffer, but using '-' instead of '+', and '_' instead of '/'.
>+// If `src` contains invalid characters, `dest` is cleared and returns `false`.
>+bool WebSafeBase64Unescape(absl::string_view src, std::string* dest);
>+
>+// Base64Escape()
>+//
>+// Encodes a `src` std::string into a `dest` buffer using base64 encoding, with
>+// padding characters. This function conforms with RFC 4648 section 4 (base64).
>+void Base64Escape(absl::string_view src, std::string* dest);
>+
>+// WebSafeBase64Escape()
>+//
>+// Encodes a `src` std::string into a `dest` buffer using '-' instead of '+' and
>+// '_' instead of '/', and without padding. This function conforms with RFC 4648
>+// section 5 (base64url).
>+void WebSafeBase64Escape(absl::string_view src, std::string* dest);
>+
>+// HexStringToBytes()
>+//
>+// Converts an ASCII hex std::string into bytes, returning binary data of length
>+// `from.size()/2`.
>+std::string HexStringToBytes(absl::string_view from);
>+
>+// BytesToHexString()
>+//
>+// Converts binary data into an ASCII text std::string, returning a std::string of size
>+// `2*from.size()`.
>+std::string BytesToHexString(absl::string_view from);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_ESCAPING_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0f791f4e87509a0c5955856b3538fcd368ae4a09
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_benchmark.cc
>@@ -0,0 +1,94 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/escaping.h"
>+
>+#include <cstdio>
>+#include <cstring>
>+#include <random>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/internal/escaping_test_common.h"
>+
>+namespace {
>+
>+void BM_CUnescapeHexString(benchmark::State& state) {
>+  std::string src;
>+  for (int i = 0; i < 50; i++) {
>+    src += "\\x55";
>+  }
>+  std::string dest;
>+  for (auto _ : state) {
>+    absl::CUnescape(src, &dest);
>+  }
>+}
>+BENCHMARK(BM_CUnescapeHexString);
>+
>+void BM_WebSafeBase64Escape_string(benchmark::State& state) {
>+  std::string raw;
>+  for (int i = 0; i < 10; ++i) {
>+    for (const auto& test_set : absl::strings_internal::base64_strings()) {
>+      raw += std::string(test_set.plaintext);
>+    }
>+  }
>+
>+  // The actual benchmark loop is tiny...
>+  std::string escaped;
>+  for (auto _ : state) {
>+    absl::WebSafeBase64Escape(raw, &escaped);
>+  }
>+
>+  // We want to be sure the compiler doesn't throw away the loop above,
>+  // and the easiest way to ensure that is to round-trip the results and verify
>+  // them.
>+  std::string round_trip;
>+  absl::WebSafeBase64Unescape(escaped, &round_trip);
>+  ABSL_RAW_CHECK(round_trip == raw, "");
>+}
>+BENCHMARK(BM_WebSafeBase64Escape_string);
>+
>+// Used for the CEscape benchmarks
>+const char kStringValueNoEscape[] = "1234567890";
>+const char kStringValueSomeEscaped[] = "123\n56789\xA1";
>+const char kStringValueMostEscaped[] = "\xA1\xA2\ny\xA4\xA5\xA6z\b\r";
>+
>+void CEscapeBenchmarkHelper(benchmark::State& state, const char* string_value,
>+                            int max_len) {
>+  std::string src;
>+  while (src.size() < max_len) {
>+    absl::StrAppend(&src, string_value);
>+  }
>+
>+  for (auto _ : state) {
>+    absl::CEscape(src);
>+  }
>+}
>+
>+void BM_CEscape_NoEscape(benchmark::State& state) {
>+  CEscapeBenchmarkHelper(state, kStringValueNoEscape, state.range(0));
>+}
>+BENCHMARK(BM_CEscape_NoEscape)->Range(1, 1 << 14);
>+
>+void BM_CEscape_SomeEscaped(benchmark::State& state) {
>+  CEscapeBenchmarkHelper(state, kStringValueSomeEscaped, state.range(0));
>+}
>+BENCHMARK(BM_CEscape_SomeEscaped)->Range(1, 1 << 14);
>+
>+void BM_CEscape_MostEscaped(benchmark::State& state) {
>+  CEscapeBenchmarkHelper(state, kStringValueMostEscaped, state.range(0));
>+}
>+BENCHMARK(BM_CEscape_MostEscaped)->Range(1, 1 << 14);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3f65ec107f4555c950ff777e89e93d23e43378e5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/escaping_test.cc
>@@ -0,0 +1,641 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/escaping.h"
>+
>+#include <array>
>+#include <cstdio>
>+#include <cstring>
>+#include <memory>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/container/fixed_array.h"
>+#include "absl/strings/str_cat.h"
>+
>+#include "absl/strings/internal/escaping_test_common.h"
>+
>+namespace {
>+
>+struct epair {
>+  std::string escaped;
>+  std::string unescaped;
>+};
>+
>+TEST(CEscape, EscapeAndUnescape) {
>+  const std::string inputs[] = {
>+    std::string("foo\nxx\r\b\0023"),
>+    std::string(""),
>+    std::string("abc"),
>+    std::string("\1chad_rules"),
>+    std::string("\1arnar_drools"),
>+    std::string("xxxx\r\t'\"\\"),
>+    std::string("\0xx\0", 4),
>+    std::string("\x01\x31"),
>+    std::string("abc\xb\x42\141bc"),
>+    std::string("123\1\x31\x32\x33"),
>+    std::string("\xc1\xca\x1b\x62\x19o\xcc\x04"),
>+    std::string("\\\"\xe8\xb0\xb7\xe6\xad\x8c\\\" is Google\\\'s Chinese name"),
>+  };
>+  // Do this twice, once for octal escapes and once for hex escapes.
>+  for (int kind = 0; kind < 4; kind++) {
>+    for (const std::string& original : inputs) {
>+      std::string escaped;
>+      switch (kind) {
>+        case 0:
>+          escaped = absl::CEscape(original);
>+          break;
>+        case 1:
>+          escaped = absl::CHexEscape(original);
>+          break;
>+        case 2:
>+          escaped = absl::Utf8SafeCEscape(original);
>+          break;
>+        case 3:
>+          escaped = absl::Utf8SafeCHexEscape(original);
>+          break;
>+      }
>+      std::string unescaped_str;
>+      EXPECT_TRUE(absl::CUnescape(escaped, &unescaped_str));
>+      EXPECT_EQ(unescaped_str, original);
>+
>+      // Check in-place unescaping
>+      std::string s = escaped;
>+      EXPECT_TRUE(absl::CUnescape(s, &s));
>+      ASSERT_EQ(s, original);
>+    }
>+  }
>+  // Check that all possible two character strings can be escaped then
>+  // unescaped successfully.
>+  for (int char0 = 0; char0 < 256; char0++) {
>+    for (int char1 = 0; char1 < 256; char1++) {
>+      char chars[2];
>+      chars[0] = char0;
>+      chars[1] = char1;
>+      std::string s(chars, 2);
>+      std::string escaped = absl::CHexEscape(s);
>+      std::string unescaped;
>+      EXPECT_TRUE(absl::CUnescape(escaped, &unescaped));
>+      EXPECT_EQ(s, unescaped);
>+    }
>+  }
>+}
>+
>+TEST(CEscape, BasicEscaping) {
>+  epair oct_values[] = {
>+      {"foo\\rbar\\nbaz\\t", "foo\rbar\nbaz\t"},
>+      {"\\'full of \\\"sound\\\" and \\\"fury\\\"\\'",
>+       "'full of \"sound\" and \"fury\"'"},
>+      {"signi\\\\fying\\\\ nothing\\\\", "signi\\fying\\ nothing\\"},
>+      {"\\010\\t\\n\\013\\014\\r", "\010\011\012\013\014\015"}
>+  };
>+  epair hex_values[] = {
>+      {"ubik\\rubik\\nubik\\t", "ubik\rubik\nubik\t"},
>+      {"I\\\'ve just seen a \\\"face\\\"",
>+       "I've just seen a \"face\""},
>+      {"hel\\\\ter\\\\skel\\\\ter\\\\", "hel\\ter\\skel\\ter\\"},
>+      {"\\x08\\t\\n\\x0b\\x0c\\r", "\010\011\012\013\014\015"}
>+  };
>+  epair utf8_oct_values[] = {
>+      {"\xe8\xb0\xb7\xe6\xad\x8c\\r\xe8\xb0\xb7\xe6\xad\x8c\\nbaz\\t",
>+       "\xe8\xb0\xb7\xe6\xad\x8c\r\xe8\xb0\xb7\xe6\xad\x8c\nbaz\t"},
>+      {"\\\"\xe8\xb0\xb7\xe6\xad\x8c\\\" is Google\\\'s Chinese name",
>+       "\"\xe8\xb0\xb7\xe6\xad\x8c\" is Google\'s Chinese name"},
>+      {"\xe3\x83\xa1\xe3\x83\xbc\xe3\x83\xab\\\\are\\\\Japanese\\\\chars\\\\",
>+       "\xe3\x83\xa1\xe3\x83\xbc\xe3\x83\xab\\are\\Japanese\\chars\\"},
>+      {"\xed\x81\xac\xeb\xa1\xac\\010\\t\\n\\013\\014\\r",
>+       "\xed\x81\xac\xeb\xa1\xac\010\011\012\013\014\015"}
>+  };
>+  epair utf8_hex_values[] = {
>+      {"\x20\xe4\xbd\xa0\\t\xe5\xa5\xbd,\\r!\\n",
>+       "\x20\xe4\xbd\xa0\t\xe5\xa5\xbd,\r!\n"},
>+      {"\xe8\xa9\xa6\xe9\xa8\x93\\\' means \\\"test\\\"",
>+       "\xe8\xa9\xa6\xe9\xa8\x93\' means \"test\""},
>+      {"\\\\\xe6\x88\x91\\\\:\\\\\xe6\x9d\xa8\xe6\xac\xa2\\\\",
>+       "\\\xe6\x88\x91\\:\\\xe6\x9d\xa8\xe6\xac\xa2\\"},
>+      {"\xed\x81\xac\xeb\xa1\xac\\x08\\t\\n\\x0b\\x0c\\r",
>+       "\xed\x81\xac\xeb\xa1\xac\010\011\012\013\014\015"}
>+  };
>+
>+  for (const epair& val : oct_values) {
>+    std::string escaped = absl::CEscape(val.unescaped);
>+    EXPECT_EQ(escaped, val.escaped);
>+  }
>+  for (const epair& val : hex_values) {
>+    std::string escaped = absl::CHexEscape(val.unescaped);
>+    EXPECT_EQ(escaped, val.escaped);
>+  }
>+  for (const epair& val : utf8_oct_values) {
>+    std::string escaped = absl::Utf8SafeCEscape(val.unescaped);
>+    EXPECT_EQ(escaped, val.escaped);
>+  }
>+  for (const epair& val : utf8_hex_values) {
>+    std::string escaped = absl::Utf8SafeCHexEscape(val.unescaped);
>+    EXPECT_EQ(escaped, val.escaped);
>+  }
>+}
>+
>+TEST(Unescape, BasicFunction) {
>+  epair tests[] =
>+    {{"\\u0030", "0"},
>+     {"\\u00A3", "\xC2\xA3"},
>+     {"\\u22FD", "\xE2\x8B\xBD"},
>+     {"\\U00010000", "\xF0\x90\x80\x80"},
>+     {"\\U0010FFFD", "\xF4\x8F\xBF\xBD"}};
>+  for (const epair& val : tests) {
>+    std::string out;
>+    EXPECT_TRUE(absl::CUnescape(val.escaped, &out));
>+    EXPECT_EQ(out, val.unescaped);
>+  }
>+  std::string bad[] =
>+     {"\\u1",         // too short
>+      "\\U1",         // too short
>+      "\\Uffffff",    // exceeds 0x10ffff (largest Unicode)
>+      "\\U00110000",  // exceeds 0x10ffff (largest Unicode)
>+      "\\uD835",      // surrogate character (D800-DFFF)
>+      "\\U0000DD04",  // surrogate character (D800-DFFF)
>+      "\\777",        // exceeds 0xff
>+      "\\xABCD"};     // exceeds 0xff
>+  for (const std::string& e : bad) {
>+    std::string error;
>+    std::string out;
>+    EXPECT_FALSE(absl::CUnescape(e, &out, &error));
>+    EXPECT_FALSE(error.empty());
>+  }
>+}
>+
>+class CUnescapeTest : public testing::Test {
>+ protected:
>+  static const char kStringWithMultipleOctalNulls[];
>+  static const char kStringWithMultipleHexNulls[];
>+  static const char kStringWithMultipleUnicodeNulls[];
>+
>+  std::string result_string_;
>+};
>+
>+const char CUnescapeTest::kStringWithMultipleOctalNulls[] =
>+    "\\0\\n"    // null escape \0 plus newline
>+    "0\\n"      // just a number 0 (not a null escape) plus newline
>+    "\\00\\12"  // null escape \00 plus octal newline code
>+    "\\000";    // null escape \000
>+
>+// This has the same ingredients as kStringWithMultipleOctalNulls
>+// but with \x hex escapes instead of octal escapes.
>+const char CUnescapeTest::kStringWithMultipleHexNulls[] =
>+    "\\x0\\n"
>+    "0\\n"
>+    "\\x00\\xa"
>+    "\\x000";
>+
>+const char CUnescapeTest::kStringWithMultipleUnicodeNulls[] =
>+    "\\u0000\\n"    // short-form (4-digit) null escape plus newline
>+    "0\\n"          // just a number 0 (not a null escape) plus newline
>+    "\\U00000000";  // long-form (8-digit) null escape
>+
>+TEST_F(CUnescapeTest, Unescapes1CharOctalNull) {
>+  std::string original_string = "\\0";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes2CharOctalNull) {
>+  std::string original_string = "\\00";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes3CharOctalNull) {
>+  std::string original_string = "\\000";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes1CharHexNull) {
>+  std::string original_string = "\\x0";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes2CharHexNull) {
>+  std::string original_string = "\\x00";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes3CharHexNull) {
>+  std::string original_string = "\\x000";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes4CharUnicodeNull) {
>+  std::string original_string = "\\u0000";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, Unescapes8CharUnicodeNull) {
>+  std::string original_string = "\\U00000000";
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0", 1), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, UnescapesMultipleOctalNulls) {
>+  std::string original_string(kStringWithMultipleOctalNulls);
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  // All escapes, including newlines and null escapes, should have been
>+  // converted to the equivalent characters.
>+  EXPECT_EQ(std::string("\0\n"
>+                   "0\n"
>+                   "\0\n"
>+                   "\0", 7), result_string_);
>+}
>+
>+
>+TEST_F(CUnescapeTest, UnescapesMultipleHexNulls) {
>+  std::string original_string(kStringWithMultipleHexNulls);
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0\n"
>+                   "0\n"
>+                   "\0\n"
>+                   "\0", 7), result_string_);
>+}
>+
>+TEST_F(CUnescapeTest, UnescapesMultipleUnicodeNulls) {
>+  std::string original_string(kStringWithMultipleUnicodeNulls);
>+  EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
>+  EXPECT_EQ(std::string("\0\n"
>+                   "0\n"
>+                   "\0", 5), result_string_);
>+}
>+
>+static struct {
>+  absl::string_view plaintext;
>+  absl::string_view cyphertext;
>+} const base64_tests[] = {
>+    // Empty std::string.
>+    {{"", 0}, {"", 0}},
>+    {{nullptr, 0},
>+     {"", 0}},  // if length is zero, plaintext ptr must be ignored!
>+
>+    // Basic bit patterns;
>+    // values obtained with "echo -n '...' | uuencode -m test"
>+
>+    {{"\000", 1}, "AA=="},
>+    {{"\001", 1}, "AQ=="},
>+    {{"\002", 1}, "Ag=="},
>+    {{"\004", 1}, "BA=="},
>+    {{"\010", 1}, "CA=="},
>+    {{"\020", 1}, "EA=="},
>+    {{"\040", 1}, "IA=="},
>+    {{"\100", 1}, "QA=="},
>+    {{"\200", 1}, "gA=="},
>+
>+    {{"\377", 1}, "/w=="},
>+    {{"\376", 1}, "/g=="},
>+    {{"\375", 1}, "/Q=="},
>+    {{"\373", 1}, "+w=="},
>+    {{"\367", 1}, "9w=="},
>+    {{"\357", 1}, "7w=="},
>+    {{"\337", 1}, "3w=="},
>+    {{"\277", 1}, "vw=="},
>+    {{"\177", 1}, "fw=="},
>+    {{"\000\000", 2}, "AAA="},
>+    {{"\000\001", 2}, "AAE="},
>+    {{"\000\002", 2}, "AAI="},
>+    {{"\000\004", 2}, "AAQ="},
>+    {{"\000\010", 2}, "AAg="},
>+    {{"\000\020", 2}, "ABA="},
>+    {{"\000\040", 2}, "ACA="},
>+    {{"\000\100", 2}, "AEA="},
>+    {{"\000\200", 2}, "AIA="},
>+    {{"\001\000", 2}, "AQA="},
>+    {{"\002\000", 2}, "AgA="},
>+    {{"\004\000", 2}, "BAA="},
>+    {{"\010\000", 2}, "CAA="},
>+    {{"\020\000", 2}, "EAA="},
>+    {{"\040\000", 2}, "IAA="},
>+    {{"\100\000", 2}, "QAA="},
>+    {{"\200\000", 2}, "gAA="},
>+
>+    {{"\377\377", 2}, "//8="},
>+    {{"\377\376", 2}, "//4="},
>+    {{"\377\375", 2}, "//0="},
>+    {{"\377\373", 2}, "//s="},
>+    {{"\377\367", 2}, "//c="},
>+    {{"\377\357", 2}, "/+8="},
>+    {{"\377\337", 2}, "/98="},
>+    {{"\377\277", 2}, "/78="},
>+    {{"\377\177", 2}, "/38="},
>+    {{"\376\377", 2}, "/v8="},
>+    {{"\375\377", 2}, "/f8="},
>+    {{"\373\377", 2}, "+/8="},
>+    {{"\367\377", 2}, "9/8="},
>+    {{"\357\377", 2}, "7/8="},
>+    {{"\337\377", 2}, "3/8="},
>+    {{"\277\377", 2}, "v/8="},
>+    {{"\177\377", 2}, "f/8="},
>+
>+    {{"\000\000\000", 3}, "AAAA"},
>+    {{"\000\000\001", 3}, "AAAB"},
>+    {{"\000\000\002", 3}, "AAAC"},
>+    {{"\000\000\004", 3}, "AAAE"},
>+    {{"\000\000\010", 3}, "AAAI"},
>+    {{"\000\000\020", 3}, "AAAQ"},
>+    {{"\000\000\040", 3}, "AAAg"},
>+    {{"\000\000\100", 3}, "AABA"},
>+    {{"\000\000\200", 3}, "AACA"},
>+    {{"\000\001\000", 3}, "AAEA"},
>+    {{"\000\002\000", 3}, "AAIA"},
>+    {{"\000\004\000", 3}, "AAQA"},
>+    {{"\000\010\000", 3}, "AAgA"},
>+    {{"\000\020\000", 3}, "ABAA"},
>+    {{"\000\040\000", 3}, "ACAA"},
>+    {{"\000\100\000", 3}, "AEAA"},
>+    {{"\000\200\000", 3}, "AIAA"},
>+    {{"\001\000\000", 3}, "AQAA"},
>+    {{"\002\000\000", 3}, "AgAA"},
>+    {{"\004\000\000", 3}, "BAAA"},
>+    {{"\010\000\000", 3}, "CAAA"},
>+    {{"\020\000\000", 3}, "EAAA"},
>+    {{"\040\000\000", 3}, "IAAA"},
>+    {{"\100\000\000", 3}, "QAAA"},
>+    {{"\200\000\000", 3}, "gAAA"},
>+
>+    {{"\377\377\377", 3}, "////"},
>+    {{"\377\377\376", 3}, "///+"},
>+    {{"\377\377\375", 3}, "///9"},
>+    {{"\377\377\373", 3}, "///7"},
>+    {{"\377\377\367", 3}, "///3"},
>+    {{"\377\377\357", 3}, "///v"},
>+    {{"\377\377\337", 3}, "///f"},
>+    {{"\377\377\277", 3}, "//+/"},
>+    {{"\377\377\177", 3}, "//9/"},
>+    {{"\377\376\377", 3}, "//7/"},
>+    {{"\377\375\377", 3}, "//3/"},
>+    {{"\377\373\377", 3}, "//v/"},
>+    {{"\377\367\377", 3}, "//f/"},
>+    {{"\377\357\377", 3}, "/+//"},
>+    {{"\377\337\377", 3}, "/9//"},
>+    {{"\377\277\377", 3}, "/7//"},
>+    {{"\377\177\377", 3}, "/3//"},
>+    {{"\376\377\377", 3}, "/v//"},
>+    {{"\375\377\377", 3}, "/f//"},
>+    {{"\373\377\377", 3}, "+///"},
>+    {{"\367\377\377", 3}, "9///"},
>+    {{"\357\377\377", 3}, "7///"},
>+    {{"\337\377\377", 3}, "3///"},
>+    {{"\277\377\377", 3}, "v///"},
>+    {{"\177\377\377", 3}, "f///"},
>+
>+    // Random numbers: values obtained with
>+    //
>+    //  #! /bin/bash
>+    //  dd bs=$1 count=1 if=/dev/random of=/tmp/bar.random
>+    //  od -N $1 -t o1 /tmp/bar.random
>+    //  uuencode -m test < /tmp/bar.random
>+    //
>+    // where $1 is the number of bytes (2, 3)
>+
>+    {{"\243\361", 2}, "o/E="},
>+    {{"\024\167", 2}, "FHc="},
>+    {{"\313\252", 2}, "y6o="},
>+    {{"\046\041", 2}, "JiE="},
>+    {{"\145\236", 2}, "ZZ4="},
>+    {{"\254\325", 2}, "rNU="},
>+    {{"\061\330", 2}, "Mdg="},
>+    {{"\245\032", 2}, "pRo="},
>+    {{"\006\000", 2}, "BgA="},
>+    {{"\375\131", 2}, "/Vk="},
>+    {{"\303\210", 2}, "w4g="},
>+    {{"\040\037", 2}, "IB8="},
>+    {{"\261\372", 2}, "sfo="},
>+    {{"\335\014", 2}, "3Qw="},
>+    {{"\233\217", 2}, "m48="},
>+    {{"\373\056", 2}, "+y4="},
>+    {{"\247\232", 2}, "p5o="},
>+    {{"\107\053", 2}, "Rys="},
>+    {{"\204\077", 2}, "hD8="},
>+    {{"\276\211", 2}, "vok="},
>+    {{"\313\110", 2}, "y0g="},
>+    {{"\363\376", 2}, "8/4="},
>+    {{"\251\234", 2}, "qZw="},
>+    {{"\103\262", 2}, "Q7I="},
>+    {{"\142\312", 2}, "Yso="},
>+    {{"\067\211", 2}, "N4k="},
>+    {{"\220\001", 2}, "kAE="},
>+    {{"\152\240", 2}, "aqA="},
>+    {{"\367\061", 2}, "9zE="},
>+    {{"\133\255", 2}, "W60="},
>+    {{"\176\035", 2}, "fh0="},
>+    {{"\032\231", 2}, "Gpk="},
>+
>+    {{"\013\007\144", 3}, "Cwdk"},
>+    {{"\030\112\106", 3}, "GEpG"},
>+    {{"\047\325\046", 3}, "J9Um"},
>+    {{"\310\160\022", 3}, "yHAS"},
>+    {{"\131\100\237", 3}, "WUCf"},
>+    {{"\064\342\134", 3}, "NOJc"},
>+    {{"\010\177\004", 3}, "CH8E"},
>+    {{"\345\147\205", 3}, "5WeF"},
>+    {{"\300\343\360", 3}, "wOPw"},
>+    {{"\061\240\201", 3}, "MaCB"},
>+    {{"\225\333\044", 3}, "ldsk"},
>+    {{"\215\137\352", 3}, "jV/q"},
>+    {{"\371\147\160", 3}, "+Wdw"},
>+    {{"\030\320\051", 3}, "GNAp"},
>+    {{"\044\174\241", 3}, "JHyh"},
>+    {{"\260\127\037", 3}, "sFcf"},
>+    {{"\111\045\033", 3}, "SSUb"},
>+    {{"\202\114\107", 3}, "gkxH"},
>+    {{"\057\371\042", 3}, "L/ki"},
>+    {{"\223\247\244", 3}, "k6ek"},
>+    {{"\047\216\144", 3}, "J45k"},
>+    {{"\203\070\327", 3}, "gzjX"},
>+    {{"\247\140\072", 3}, "p2A6"},
>+    {{"\124\115\116", 3}, "VE1O"},
>+    {{"\157\162\050", 3}, "b3Io"},
>+    {{"\357\223\004", 3}, "75ME"},
>+    {{"\052\117\156", 3}, "Kk9u"},
>+    {{"\347\154\000", 3}, "52wA"},
>+    {{"\303\012\142", 3}, "wwpi"},
>+    {{"\060\035\362", 3}, "MB3y"},
>+    {{"\130\226\361", 3}, "WJbx"},
>+    {{"\173\013\071", 3}, "ews5"},
>+    {{"\336\004\027", 3}, "3gQX"},
>+    {{"\357\366\234", 3}, "7/ac"},
>+    {{"\353\304\111", 3}, "68RJ"},
>+    {{"\024\264\131", 3}, "FLRZ"},
>+    {{"\075\114\251", 3}, "PUyp"},
>+    {{"\315\031\225", 3}, "zRmV"},
>+    {{"\154\201\276", 3}, "bIG+"},
>+    {{"\200\066\072", 3}, "gDY6"},
>+    {{"\142\350\267", 3}, "Yui3"},
>+    {{"\033\000\166", 3}, "GwB2"},
>+    {{"\210\055\077", 3}, "iC0/"},
>+    {{"\341\037\124", 3}, "4R9U"},
>+    {{"\161\103\152", 3}, "cUNq"},
>+    {{"\270\142\131", 3}, "uGJZ"},
>+    {{"\337\076\074", 3}, "3z48"},
>+    {{"\375\106\362", 3}, "/Uby"},
>+    {{"\227\301\127", 3}, "l8FX"},
>+    {{"\340\002\234", 3}, "4AKc"},
>+    {{"\121\064\033", 3}, "UTQb"},
>+    {{"\157\134\143", 3}, "b1xj"},
>+    {{"\247\055\327", 3}, "py3X"},
>+    {{"\340\142\005", 3}, "4GIF"},
>+    {{"\060\260\143", 3}, "MLBj"},
>+    {{"\075\203\170", 3}, "PYN4"},
>+    {{"\143\160\016", 3}, "Y3AO"},
>+    {{"\313\013\063", 3}, "ywsz"},
>+    {{"\174\236\135", 3}, "fJ5d"},
>+    {{"\103\047\026", 3}, "QycW"},
>+    {{"\365\005\343", 3}, "9QXj"},
>+    {{"\271\160\223", 3}, "uXCT"},
>+    {{"\362\255\172", 3}, "8q16"},
>+    {{"\113\012\015", 3}, "SwoN"},
>+
>+    // various lengths, generated by this python script:
>+    //
>+    // from std::string import lowercase as lc
>+    // for i in range(27):
>+    //   print '{ %2d, "%s",%s "%s" },' % (i, lc[:i], ' ' * (26-i),
>+    //                                     lc[:i].encode('base64').strip())
>+
>+    {{"", 0}, {"", 0}},
>+    {"a", "YQ=="},
>+    {"ab", "YWI="},
>+    {"abc", "YWJj"},
>+    {"abcd", "YWJjZA=="},
>+    {"abcde", "YWJjZGU="},
>+    {"abcdef", "YWJjZGVm"},
>+    {"abcdefg", "YWJjZGVmZw=="},
>+    {"abcdefgh", "YWJjZGVmZ2g="},
>+    {"abcdefghi", "YWJjZGVmZ2hp"},
>+    {"abcdefghij", "YWJjZGVmZ2hpag=="},
>+    {"abcdefghijk", "YWJjZGVmZ2hpams="},
>+    {"abcdefghijkl", "YWJjZGVmZ2hpamts"},
>+    {"abcdefghijklm", "YWJjZGVmZ2hpamtsbQ=="},
>+    {"abcdefghijklmn", "YWJjZGVmZ2hpamtsbW4="},
>+    {"abcdefghijklmno", "YWJjZGVmZ2hpamtsbW5v"},
>+    {"abcdefghijklmnop", "YWJjZGVmZ2hpamtsbW5vcA=="},
>+    {"abcdefghijklmnopq", "YWJjZGVmZ2hpamtsbW5vcHE="},
>+    {"abcdefghijklmnopqr", "YWJjZGVmZ2hpamtsbW5vcHFy"},
>+    {"abcdefghijklmnopqrs", "YWJjZGVmZ2hpamtsbW5vcHFycw=="},
>+    {"abcdefghijklmnopqrst", "YWJjZGVmZ2hpamtsbW5vcHFyc3Q="},
>+    {"abcdefghijklmnopqrstu", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1"},
>+    {"abcdefghijklmnopqrstuv", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dg=="},
>+    {"abcdefghijklmnopqrstuvw", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnc="},
>+    {"abcdefghijklmnopqrstuvwx", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4"},
>+    {"abcdefghijklmnopqrstuvwxy", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eQ=="},
>+    {"abcdefghijklmnopqrstuvwxyz", "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXo="},
>+};
>+
>+TEST(Base64, EscapeAndUnescape) {
>+  // Check the short strings; this tests the math (and boundaries)
>+  for (const auto& tc : base64_tests) {
>+    std::string encoded("this junk should be ignored");
>+    absl::Base64Escape(tc.plaintext, &encoded);
>+    EXPECT_EQ(encoded, tc.cyphertext);
>+
>+    std::string decoded("this junk should be ignored");
>+    EXPECT_TRUE(absl::Base64Unescape(encoded, &decoded));
>+    EXPECT_EQ(decoded, tc.plaintext);
>+
>+    std::string websafe(tc.cyphertext);
>+    for (int c = 0; c < websafe.size(); ++c) {
>+      if ('+' == websafe[c]) websafe[c] = '-';
>+      if ('/' == websafe[c]) websafe[c] = '_';
>+      if ('=' == websafe[c]) {
>+        websafe.resize(c);
>+        break;
>+      }
>+    }
>+
>+    encoded = "this junk should be ignored";
>+    absl::WebSafeBase64Escape(tc.plaintext, &encoded);
>+    EXPECT_EQ(encoded, websafe);
>+
>+    // Let's try the std::string version of the decoder
>+    decoded = "this junk should be ignored";
>+    EXPECT_TRUE(absl::WebSafeBase64Unescape(websafe, &decoded));
>+    EXPECT_EQ(decoded, tc.plaintext);
>+  }
>+
>+  // Now try the long strings, this tests the streaming
>+  for (const auto& tc : absl::strings_internal::base64_strings()) {
>+    std::string buffer;
>+    absl::WebSafeBase64Escape(tc.plaintext, &buffer);
>+    EXPECT_EQ(tc.cyphertext, buffer);
>+  }
>+
>+  // Verify the behavior when decoding bad data
>+  {
>+    absl::string_view data_set[] = {"ab-/", absl::string_view("\0bcd", 4),
>+                                    absl::string_view("abc.\0", 5)};
>+    for (absl::string_view bad_data : data_set) {
>+      std::string buf;
>+      EXPECT_FALSE(absl::Base64Unescape(bad_data, &buf));
>+      EXPECT_FALSE(absl::WebSafeBase64Unescape(bad_data, &buf));
>+      EXPECT_TRUE(buf.empty());
>+    }
>+  }
>+}
>+
>+TEST(Base64, DISABLED_HugeData) {
>+  const size_t kSize = size_t(3) * 1000 * 1000 * 1000;
>+  static_assert(kSize % 3 == 0, "kSize must be divisible by 3");
>+  const std::string huge(kSize, 'x');
>+
>+  std::string escaped;
>+  absl::Base64Escape(huge, &escaped);
>+
>+  // Generates the std::string that should match a base64 encoded "xxx..." std::string.
>+  // "xxx" in base64 is "eHh4".
>+  std::string expected_encoding;
>+  expected_encoding.reserve(kSize / 3 * 4);
>+  for (size_t i = 0; i < kSize / 3; ++i) {
>+    expected_encoding.append("eHh4");
>+  }
>+  EXPECT_EQ(expected_encoding, escaped);
>+
>+  std::string unescaped;
>+  EXPECT_TRUE(absl::Base64Unescape(escaped, &unescaped));
>+  EXPECT_EQ(huge, unescaped);
>+}
>+
>+TEST(HexAndBack, HexStringToBytes_and_BytesToHexString) {
>+  std::string hex_mixed = "0123456789abcdefABCDEF";
>+  std::string bytes_expected = "\x01\x23\x45\x67\x89\xab\xcd\xef\xAB\xCD\xEF";
>+  std::string hex_only_lower = "0123456789abcdefabcdef";
>+
>+  std::string bytes_result = absl::HexStringToBytes(hex_mixed);
>+  EXPECT_EQ(bytes_expected, bytes_result);
>+
>+  std::string prefix_valid = hex_mixed + "?";
>+  std::string prefix_valid_result = absl::HexStringToBytes(
>+      absl::string_view(prefix_valid.data(), prefix_valid.size() - 1));
>+  EXPECT_EQ(bytes_expected, prefix_valid_result);
>+
>+  std::string infix_valid = "?" + hex_mixed + "???";
>+  std::string infix_valid_result = absl::HexStringToBytes(
>+      absl::string_view(infix_valid.data() + 1, hex_mixed.size()));
>+  EXPECT_EQ(bytes_expected, infix_valid_result);
>+
>+  std::string hex_result = absl::BytesToHexString(bytes_expected);
>+  EXPECT_EQ(hex_only_lower, hex_result);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/bits.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/bits.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..901082ccddfca78457c746fbe22ee5709933bfaf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/bits.h
>@@ -0,0 +1,53 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_BITS_H_
>+#define ABSL_STRINGS_INTERNAL_BITS_H_
>+
>+#include <cstdint>
>+
>+#if defined(_MSC_VER) && defined(_M_X64)
>+#include <intrin.h>
>+#pragma intrinsic(_BitScanReverse64)
>+#endif
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// Returns the number of leading 0 bits in a 64-bit value.
>+inline int CountLeadingZeros64(uint64_t n) {
>+#if defined(__GNUC__)
>+  static_assert(sizeof(unsigned long long) == sizeof(n),  // NOLINT(runtime/int)
>+                "__builtin_clzll does not take 64bit arg");
>+  return n == 0 ? 64 : __builtin_clzll(n);
>+#elif defined(_MSC_VER) && defined(_M_X64)
>+  unsigned long result;  // NOLINT(runtime/int)
>+  if (_BitScanReverse64(&result, n)) {
>+    return 63 - result;
>+  }
>+  return 64;
>+#else
>+  int zeroes = 60;
>+  if (n >> 32) zeroes -= 32, n >>= 32;
>+  if (n >> 16) zeroes -= 16, n >>= 16;
>+  if (n >> 8) zeroes -= 8, n >>= 8;
>+  if (n >> 4) zeroes -= 4, n >>= 4;
>+  return "\4\3\2\2\1\1\1\1\0\0\0\0\0\0\0\0"[n] + zeroes;
>+#endif
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_BITS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8d92963a4dea3dc11ca71232d0b3f088960d4d03
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map.h
>@@ -0,0 +1,154 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Character Map Class
>+//
>+// A fast, bit-vector map for 8-bit unsigned characters.
>+// This class is useful for non-character purposes as well.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_CHAR_MAP_H_
>+#define ABSL_STRINGS_INTERNAL_CHAR_MAP_H_
>+
>+#include <cstddef>
>+#include <cstdint>
>+#include <cstring>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+class Charmap {
>+ public:
>+  constexpr Charmap() : m_() {}
>+
>+  // Initializes with a given char*.  Note that NUL is not treated as
>+  // a terminator, but rather a char to be flicked.
>+  Charmap(const char* str, int len) : m_() {
>+    while (len--) SetChar(*str++);
>+  }
>+
>+  // Initializes with a given char*.  NUL is treated as a terminator
>+  // and will not be in the charmap.
>+  explicit Charmap(const char* str) : m_() {
>+    while (*str) SetChar(*str++);
>+  }
>+
>+  constexpr bool contains(unsigned char c) const {
>+    return (m_[c / 64] >> (c % 64)) & 0x1;
>+  }
>+
>+  // Returns true if and only if a character exists in both maps.
>+  bool IntersectsWith(const Charmap& c) const {
>+    for (size_t i = 0; i < ABSL_ARRAYSIZE(m_); ++i) {
>+      if ((m_[i] & c.m_[i]) != 0) return true;
>+    }
>+    return false;
>+  }
>+
>+  bool IsZero() const {
>+    for (uint64_t c : m_) {
>+      if (c != 0) return false;
>+    }
>+    return true;
>+  }
>+
>+  // Containing only a single specified char.
>+  static constexpr Charmap Char(char x) {
>+    return Charmap(CharMaskForWord(x, 0), CharMaskForWord(x, 1),
>+                   CharMaskForWord(x, 2), CharMaskForWord(x, 3));
>+  }
>+
>+  // Containing all the chars in the C-std::string 's'.
>+  // Note that this is expensively recursive because of the C++11 constexpr
>+  // formulation. Use only in constexpr initializers.
>+  static constexpr Charmap FromString(const char* s) {
>+    return *s == 0 ? Charmap() : (Char(*s) | FromString(s + 1));
>+  }
>+
>+  // Containing all the chars in the closed interval [lo,hi].
>+  static constexpr Charmap Range(char lo, char hi) {
>+    return Charmap(RangeForWord(lo, hi, 0), RangeForWord(lo, hi, 1),
>+                   RangeForWord(lo, hi, 2), RangeForWord(lo, hi, 3));
>+  }
>+
>+  friend constexpr Charmap operator&(const Charmap& a, const Charmap& b) {
>+    return Charmap(a.m_[0] & b.m_[0], a.m_[1] & b.m_[1], a.m_[2] & b.m_[2],
>+                   a.m_[3] & b.m_[3]);
>+  }
>+
>+  friend constexpr Charmap operator|(const Charmap& a, const Charmap& b) {
>+    return Charmap(a.m_[0] | b.m_[0], a.m_[1] | b.m_[1], a.m_[2] | b.m_[2],
>+                   a.m_[3] | b.m_[3]);
>+  }
>+
>+  friend constexpr Charmap operator~(const Charmap& a) {
>+    return Charmap(~a.m_[0], ~a.m_[1], ~a.m_[2], ~a.m_[3]);
>+  }
>+
>+ private:
>+  constexpr Charmap(uint64_t b0, uint64_t b1, uint64_t b2, uint64_t b3)
>+      : m_{b0, b1, b2, b3} {}
>+
>+  static constexpr uint64_t RangeForWord(unsigned char lo, unsigned char hi,
>+                                         uint64_t word) {
>+    return OpenRangeFromZeroForWord(hi + 1, word) &
>+           ~OpenRangeFromZeroForWord(lo, word);
>+  }
>+
>+  // All the chars in the specified word of the range [0, upper).
>+  static constexpr uint64_t OpenRangeFromZeroForWord(uint64_t upper,
>+                                                     uint64_t word) {
>+    return (upper <= 64 * word)
>+               ? 0
>+               : (upper >= 64 * (word + 1))
>+                     ? ~static_cast<uint64_t>(0)
>+                     : (~static_cast<uint64_t>(0) >> (64 - upper % 64));
>+  }
>+
>+  static constexpr uint64_t CharMaskForWord(unsigned char x, uint64_t word) {
>+    return (x / 64 == word) ? (static_cast<uint64_t>(1) << (x % 64)) : 0;
>+  }
>+
>+ private:
>+  void SetChar(unsigned char c) {
>+    m_[c / 64] |= static_cast<uint64_t>(1) << (c % 64);
>+  }
>+
>+  uint64_t m_[4];
>+};
>+
>+// Mirror the char-classifying predicates in <cctype>
>+constexpr Charmap UpperCharmap() { return Charmap::Range('A', 'Z'); }
>+constexpr Charmap LowerCharmap() { return Charmap::Range('a', 'z'); }
>+constexpr Charmap DigitCharmap() { return Charmap::Range('0', '9'); }
>+constexpr Charmap AlphaCharmap() { return LowerCharmap() | UpperCharmap(); }
>+constexpr Charmap AlnumCharmap() { return DigitCharmap() | AlphaCharmap(); }
>+constexpr Charmap XDigitCharmap() {
>+  return DigitCharmap() | Charmap::Range('A', 'F') | Charmap::Range('a', 'f');
>+}
>+constexpr Charmap PrintCharmap() { return Charmap::Range(0x20, 0x7e); }
>+constexpr Charmap SpaceCharmap() { return Charmap::FromString("\t\n\v\f\r "); }
>+constexpr Charmap CntrlCharmap() {
>+  return Charmap::Range(0, 0x7f) & ~PrintCharmap();
>+}
>+constexpr Charmap BlankCharmap() { return Charmap::FromString("\t "); }
>+constexpr Charmap GraphCharmap() { return PrintCharmap() & ~SpaceCharmap(); }
>+constexpr Charmap PunctCharmap() { return GraphCharmap() & ~AlnumCharmap(); }
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_CHAR_MAP_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c45f3157c2917926d72ab888120d5a577ebfaf8a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_benchmark.cc
>@@ -0,0 +1,61 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/char_map.h"
>+
>+#include <cstdint>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+absl::strings_internal::Charmap MakeBenchmarkMap() {
>+  absl::strings_internal::Charmap m;
>+  uint32_t x[] = {0x0, 0x1, 0x2, 0x3, 0xf, 0xe, 0xd, 0xc};
>+  for (uint32_t& t : x) t *= static_cast<uint32_t>(0x11111111UL);
>+  for (uint32_t i = 0; i < 256; ++i) {
>+    if ((x[i / 32] >> (i % 32)) & 1)
>+      m = m | absl::strings_internal::Charmap::Char(i);
>+  }
>+  return m;
>+}
>+
>+// Micro-benchmark for Charmap::contains.
>+void BM_Contains(benchmark::State& state) {
>+  // Loop-body replicated 10 times to increase time per iteration.
>+  // Argument continuously changed to avoid generating common subexpressions.
>+  const absl::strings_internal::Charmap benchmark_map = MakeBenchmarkMap();
>+  unsigned char c = 0;
>+  int ops = 0;
>+  for (auto _ : state) {
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+    ops += benchmark_map.contains(c++);
>+  }
>+  benchmark::DoNotOptimize(ops);
>+}
>+BENCHMARK(BM_Contains);
>+
>+// We don't bother benchmarking Charmap::IsZero or Charmap::IntersectsWith;
>+// their running time is data-dependent and it is not worth characterizing
>+// "typical" data.
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c3601e101e2a936ff57a2fae980cf4f800bf8c4c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/char_map_test.cc
>@@ -0,0 +1,172 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/char_map.h"
>+
>+#include <cctype>
>+#include <string>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+constexpr absl::strings_internal::Charmap everything_map =
>+    ~absl::strings_internal::Charmap();
>+constexpr absl::strings_internal::Charmap nothing_map{};
>+
>+TEST(Charmap, AllTests) {
>+  const absl::strings_internal::Charmap also_nothing_map("", 0);
>+  ASSERT_TRUE(everything_map.contains('\0'));
>+  ASSERT_TRUE(!nothing_map.contains('\0'));
>+  ASSERT_TRUE(!also_nothing_map.contains('\0'));
>+  for (unsigned char ch = 1; ch != 0; ++ch) {
>+    ASSERT_TRUE(everything_map.contains(ch));
>+    ASSERT_TRUE(!nothing_map.contains(ch));
>+    ASSERT_TRUE(!also_nothing_map.contains(ch));
>+  }
>+
>+  const absl::strings_internal::Charmap symbols("&@#@^!@?", 5);
>+  ASSERT_TRUE(symbols.contains('&'));
>+  ASSERT_TRUE(symbols.contains('@'));
>+  ASSERT_TRUE(symbols.contains('#'));
>+  ASSERT_TRUE(symbols.contains('^'));
>+  ASSERT_TRUE(!symbols.contains('!'));
>+  ASSERT_TRUE(!symbols.contains('?'));
>+  int cnt = 0;
>+  for (unsigned char ch = 1; ch != 0; ++ch)
>+    cnt += symbols.contains(ch);
>+  ASSERT_EQ(cnt, 4);
>+
>+  const absl::strings_internal::Charmap lets("^abcde", 3);
>+  const absl::strings_internal::Charmap lets2("fghij\0klmnop", 10);
>+  const absl::strings_internal::Charmap lets3("fghij\0klmnop");
>+  ASSERT_TRUE(lets2.contains('k'));
>+  ASSERT_TRUE(!lets3.contains('k'));
>+
>+  ASSERT_TRUE(symbols.IntersectsWith(lets));
>+  ASSERT_TRUE(!lets2.IntersectsWith(lets));
>+  ASSERT_TRUE(lets.IntersectsWith(symbols));
>+  ASSERT_TRUE(!lets.IntersectsWith(lets2));
>+
>+  ASSERT_TRUE(nothing_map.IsZero());
>+  ASSERT_TRUE(!lets.IsZero());
>+}
>+
>+namespace {
>+std::string Members(const absl::strings_internal::Charmap& m) {
>+  std::string r;
>+  for (size_t i = 0; i < 256; ++i)
>+    if (m.contains(i)) r.push_back(i);
>+  return r;
>+}
>+
>+std::string ClosedRangeString(unsigned char lo, unsigned char hi) {
>+  // Don't depend on lo<hi. Just increment until lo==hi.
>+  std::string s;
>+  while (true) {
>+    s.push_back(lo);
>+    if (lo == hi) break;
>+    ++lo;
>+  }
>+  return s;
>+}
>+
>+}  // namespace
>+
>+TEST(Charmap, Constexpr) {
>+  constexpr absl::strings_internal::Charmap kEmpty = nothing_map;
>+  EXPECT_THAT(Members(kEmpty), "");
>+  constexpr absl::strings_internal::Charmap kA =
>+      absl::strings_internal::Charmap::Char('A');
>+  EXPECT_THAT(Members(kA), "A");
>+  constexpr absl::strings_internal::Charmap kAZ =
>+      absl::strings_internal::Charmap::Range('A', 'Z');
>+  EXPECT_THAT(Members(kAZ), "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
>+  constexpr absl::strings_internal::Charmap kIdentifier =
>+      absl::strings_internal::Charmap::Range('0', '9') |
>+      absl::strings_internal::Charmap::Range('A', 'Z') |
>+      absl::strings_internal::Charmap::Range('a', 'z') |
>+      absl::strings_internal::Charmap::Char('_');
>+  EXPECT_THAT(Members(kIdentifier),
>+              "0123456789"
>+              "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
>+              "_"
>+              "abcdefghijklmnopqrstuvwxyz");
>+  constexpr absl::strings_internal::Charmap kAll = everything_map;
>+  for (size_t i = 0; i < 256; ++i) {
>+    EXPECT_TRUE(kAll.contains(i)) << i;
>+  }
>+  constexpr absl::strings_internal::Charmap kHello =
>+      absl::strings_internal::Charmap::FromString("Hello, world!");
>+  EXPECT_THAT(Members(kHello), " !,Hdelorw");
>+
>+  // test negation and intersection
>+  constexpr absl::strings_internal::Charmap kABC =
>+      absl::strings_internal::Charmap::Range('A', 'Z') &
>+      ~absl::strings_internal::Charmap::Range('D', 'Z');
>+  EXPECT_THAT(Members(kABC), "ABC");
>+}
>+
>+TEST(Charmap, Range) {
>+  // Exhaustive testing takes too long, so test some of the boundaries that
>+  // are perhaps going to cause trouble.
>+  std::vector<size_t> poi = {0,   1,   2,   3,   4,   7,   8,   9,  15,
>+                             16,  17,  30,  31,  32,  33,  63,  64, 65,
>+                             127, 128, 129, 223, 224, 225, 254, 255};
>+  for (auto lo = poi.begin(); lo != poi.end(); ++lo) {
>+    SCOPED_TRACE(*lo);
>+    for (auto hi = lo; hi != poi.end(); ++hi) {
>+      SCOPED_TRACE(*hi);
>+      EXPECT_THAT(Members(absl::strings_internal::Charmap::Range(*lo, *hi)),
>+                  ClosedRangeString(*lo, *hi));
>+    }
>+  }
>+}
>+
>+bool AsBool(int x) { return static_cast<bool>(x); }
>+
>+TEST(CharmapCtype, Match) {
>+  for (int c = 0; c < 256; ++c) {
>+    SCOPED_TRACE(c);
>+    SCOPED_TRACE(static_cast<char>(c));
>+    EXPECT_EQ(AsBool(std::isupper(c)),
>+              absl::strings_internal::UpperCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::islower(c)),
>+              absl::strings_internal::LowerCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isdigit(c)),
>+              absl::strings_internal::DigitCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isalpha(c)),
>+              absl::strings_internal::AlphaCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isalnum(c)),
>+              absl::strings_internal::AlnumCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isxdigit(c)),
>+              absl::strings_internal::XDigitCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isprint(c)),
>+              absl::strings_internal::PrintCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isspace(c)),
>+              absl::strings_internal::SpaceCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::iscntrl(c)),
>+              absl::strings_internal::CntrlCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isblank(c)),
>+              absl::strings_internal::BlankCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::isgraph(c)),
>+              absl::strings_internal::GraphCharmap().contains(c));
>+    EXPECT_EQ(AsBool(std::ispunct(c)),
>+              absl::strings_internal::PunctCharmap().contains(c));
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e7296e7068a54b13e03016dd4e3a261af78e048
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.cc
>@@ -0,0 +1,357 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/charconv_bigint.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <string>
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+namespace {
>+
>+// Table containing some large powers of 5, for fast computation.
>+
>+// Constant step size for entries in the kLargePowersOfFive table.  Each entry
>+// is larger than the previous entry by a factor of 5**kLargePowerOfFiveStep
>+// (or 5**27).
>+//
>+// In other words, the Nth entry in the table is 5**(27*N).
>+//
>+// 5**27 is the largest power of 5 that fits in 64 bits.
>+constexpr int kLargePowerOfFiveStep = 27;
>+
>+// The largest legal index into the kLargePowersOfFive table.
>+//
>+// In other words, the largest precomputed power of 5 is 5**(27*20).
>+constexpr int kLargestPowerOfFiveIndex = 20;
>+
>+// Table of powers of (5**27), up to (5**27)**20 == 5**540.
>+//
>+// Used to generate large powers of 5 while limiting the number of repeated
>+// multiplications required.
>+//
>+// clang-format off
>+const uint32_t kLargePowersOfFive[] = {
>+// 5**27 (i=1), start=0, end=2
>+  0xfa10079dU, 0x6765c793U,
>+// 5**54 (i=2), start=2, end=6
>+  0x97d9f649U, 0x6664242dU, 0x29939b14U, 0x29c30f10U,
>+// 5**81 (i=3), start=6, end=12
>+  0xc4f809c5U, 0x7bf3f22aU, 0x67bdae34U, 0xad340517U, 0x369d1b5fU, 0x10de1593U,
>+// 5**108 (i=4), start=12, end=20
>+  0x92b260d1U, 0x9efff7c7U, 0x81de0ec6U, 0xaeba5d56U, 0x410664a4U, 0x4f40737aU,
>+  0x20d3846fU, 0x06d00f73U,
>+// 5**135 (i=5), start=20, end=30
>+  0xff1b172dU, 0x13a1d71cU, 0xefa07617U, 0x7f682d3dU, 0xff8c90c0U, 0x3f0131e7U,
>+  0x3fdcb9feU, 0x917b0177U, 0x16c407a7U, 0x02c06b9dU,
>+// 5**162 (i=6), start=30, end=42
>+  0x960f7199U, 0x056667ecU, 0xe07aefd8U, 0x80f2b9ccU, 0x8273f5e3U, 0xeb9a214aU,
>+  0x40b38005U, 0x0e477ad4U, 0x277d08e6U, 0xfa28b11eU, 0xd3f7d784U, 0x011c835bU,
>+// 5**189 (i=7), start=42, end=56
>+  0xf723d9d5U, 0x3282d3f3U, 0xe00857d1U, 0x69659d25U, 0x2cf117cfU, 0x24da6d07U,
>+  0x954d1417U, 0x3e5d8cedU, 0x7a8bb766U, 0xfd785ae6U, 0x645436d2U, 0x40c78b34U,
>+  0x94151217U, 0x0072e9f7U,
>+// 5**216 (i=8), start=56, end=72
>+  0x2b416aa1U, 0x7893c5a7U, 0xe37dc6d4U, 0x2bad2beaU, 0xf0fc846cU, 0x7575ae4bU,
>+  0x62587b14U, 0x83b67a34U, 0x02110cdbU, 0xf7992f55U, 0x00deb022U, 0xa4a23becU,
>+  0x8af5c5cdU, 0xb85b654fU, 0x818df38bU, 0x002e69d2U,
>+// 5**243 (i=9), start=72, end=90
>+  0x3518cbbdU, 0x20b0c15fU, 0x38756c2fU, 0xfb5dc3ddU, 0x22ad2d94U, 0xbf35a952U,
>+  0xa699192aU, 0x9a613326U, 0xad2a9cedU, 0xd7f48968U, 0xe87dfb54U, 0xc8f05db6U,
>+  0x5ef67531U, 0x31c1ab49U, 0xe202ac9fU, 0x9b2957b5U, 0xa143f6d3U, 0x0012bf07U,
>+// 5**270 (i=10), start=90, end=110
>+  0x8b971de9U, 0x21aba2e1U, 0x63944362U, 0x57172336U, 0xd9544225U, 0xfb534166U,
>+  0x08c563eeU, 0x14640ee2U, 0x24e40d31U, 0x02b06537U, 0x03887f14U, 0x0285e533U,
>+  0xb744ef26U, 0x8be3a6c4U, 0x266979b4U, 0x6761ece2U, 0xd9cb39e4U, 0xe67de319U,
>+  0x0d39e796U, 0x00079250U,
>+// 5**297 (i=11), start=110, end=132
>+  0x260eb6e5U, 0xf414a796U, 0xee1a7491U, 0xdb9368ebU, 0xf50c105bU, 0x59157750U,
>+  0x9ed2fb5cU, 0xf6e56d8bU, 0xeaee8d23U, 0x0f319f75U, 0x2aa134d6U, 0xac2908e9U,
>+  0xd4413298U, 0x02f02a55U, 0x989d5a7aU, 0x70dde184U, 0xba8040a7U, 0x03200981U,
>+  0xbe03b11cU, 0x3c1c2a18U, 0xd60427a1U, 0x00030ee0U,
>+// 5**324 (i=12), start=132, end=156
>+  0xce566d71U, 0xf1c4aa25U, 0x4e93ca53U, 0xa72283d0U, 0x551a73eaU, 0x3d0538e2U,
>+  0x8da4303fU, 0x6a58de60U, 0x0e660221U, 0x49cf61a6U, 0x8d058fc1U, 0xb9d1a14cU,
>+  0x4bab157dU, 0xc85c6932U, 0x518c8b9eU, 0x9b92b8d0U, 0x0d8a0e21U, 0xbd855df9U,
>+  0xb3ea59a1U, 0x8da29289U, 0x4584d506U, 0x3752d80fU, 0xb72569c6U, 0x00013c33U,
>+// 5**351 (i=13), start=156, end=182
>+  0x190f354dU, 0x83695cfeU, 0xe5a4d0c7U, 0xb60fb7e8U, 0xee5bbcc4U, 0xb922054cU,
>+  0xbb4f0d85U, 0x48394028U, 0x1d8957dbU, 0x0d7edb14U, 0x4ecc7587U, 0x505e9e02U,
>+  0x4c87f36bU, 0x99e66bd6U, 0x44b9ed35U, 0x753037d4U, 0xe5fe5f27U, 0x2742c203U,
>+  0x13b2ed2bU, 0xdc525d2cU, 0xe6fde59aU, 0x77ffb18fU, 0x13c5752cU, 0x08a84bccU,
>+  0x859a4940U, 0x00007fb6U,
>+// 5**378 (i=14), start=182, end=210
>+  0x4f98cb39U, 0xa60edbbcU, 0x83b5872eU, 0xa501acffU, 0x9cc76f78U, 0xbadd4c73U,
>+  0x43e989faU, 0xca7acf80U, 0x2e0c824fU, 0xb19f4ffcU, 0x092fd81cU, 0xe4eb645bU,
>+  0xa1ff84c2U, 0x8a5a83baU, 0xa8a1fae9U, 0x1db43609U, 0xb0fed50bU, 0x0dd7d2bdU,
>+  0x7d7accd8U, 0x91fa640fU, 0x37dcc6c5U, 0x1c417fd5U, 0xe4d462adU, 0xe8a43399U,
>+  0x131bf9a5U, 0x8df54d29U, 0x36547dc1U, 0x00003395U,
>+// 5**405 (i=15), start=210, end=240
>+  0x5bd330f5U, 0x77d21967U, 0x1ac481b7U, 0x6be2f7ceU, 0x7f4792a9U, 0xe84c2c52U,
>+  0x84592228U, 0x9dcaf829U, 0xdab44ce1U, 0x3d0c311bU, 0x532e297dU, 0x4704e8b4U,
>+  0x9cdc32beU, 0x41e64d9dU, 0x7717bea1U, 0xa824c00dU, 0x08f50b27U, 0x0f198d77U,
>+  0x49bbfdf0U, 0x025c6c69U, 0xd4e55cd3U, 0xf083602bU, 0xb9f0fecdU, 0xc0864aeaU,
>+  0x9cb98681U, 0xaaf620e9U, 0xacb6df30U, 0x4faafe66U, 0x8af13c3bU, 0x000014d5U,
>+// 5**432 (i=16), start=240, end=272
>+  0x682bb941U, 0x89a9f297U, 0xcba75d7bU, 0x404217b1U, 0xb4e519e9U, 0xa1bc162bU,
>+  0xf7f5910aU, 0x98715af5U, 0x2ff53e57U, 0xe3ef118cU, 0x490c4543U, 0xbc9b1734U,
>+  0x2affbe4dU, 0x4cedcb4cU, 0xfb14e99eU, 0x35e34212U, 0xece39c24U, 0x07673ab3U,
>+  0xe73115ddU, 0xd15d38e7U, 0x093eed3bU, 0xf8e7eac5U, 0x78a8cc80U, 0x25227aacU,
>+  0x3f590551U, 0x413da1cbU, 0xdf643a55U, 0xab65ad44U, 0xd70b23d7U, 0xc672cd76U,
>+  0x3364ea62U, 0x0000086aU,
>+// 5**459 (i=17), start=272, end=306
>+  0x22f163ddU, 0x23cf07acU, 0xbe2af6c2U, 0xf412f6f6U, 0xc3ff541eU, 0x6eeaf7deU,
>+  0xa47047e0U, 0x408cda92U, 0x0f0eeb08U, 0x56deba9dU, 0xcfc6b090U, 0x8bbbdf04U,
>+  0x3933cdb3U, 0x9e7bb67dU, 0x9f297035U, 0x38946244U, 0xee1d37bbU, 0xde898174U,
>+  0x63f3559dU, 0x705b72fbU, 0x138d27d9U, 0xf8603a78U, 0x735eec44U, 0xe30987d5U,
>+  0xc6d38070U, 0x9cfe548eU, 0x9ff01422U, 0x7c564aa8U, 0x91cc60baU, 0xcbc3565dU,
>+  0x7550a50bU, 0x6909aeadU, 0x13234c45U, 0x00000366U,
>+// 5**486 (i=18), start=306, end=342
>+  0x17954989U, 0x3a7d7709U, 0x98042de5U, 0xa9011443U, 0x45e723c2U, 0x269ffd6fU,
>+  0x58852a46U, 0xaaa1042aU, 0x2eee8153U, 0xb2b6c39eU, 0xaf845b65U, 0xf6c365d7U,
>+  0xe4cffb2bU, 0xc840e90cU, 0xabea8abbU, 0x5c58f8d2U, 0x5c19fa3aU, 0x4670910aU,
>+  0x4449f21cU, 0xefa645b3U, 0xcc427decU, 0x083c3d73U, 0x467cb413U, 0x6fe10ae4U,
>+  0x3caffc72U, 0x9f8da55eU, 0x5e5c8ea7U, 0x490594bbU, 0xf0871b0bU, 0xdd89816cU,
>+  0x8e931df8U, 0xe85ce1c9U, 0xcca090a5U, 0x575fa16bU, 0x6b9f106cU, 0x0000015fU,
>+// 5**513 (i=19), start=342, end=380
>+  0xee20d805U, 0x57bc3c07U, 0xcdea624eU, 0xd3f0f52dU, 0x9924b4f4U, 0xcf968640U,
>+  0x61d41962U, 0xe87fb464U, 0xeaaf51c7U, 0x564c8b60U, 0xccda4028U, 0x529428bbU,
>+  0x313a1fa8U, 0x96bd0f94U, 0x7a82ebaaU, 0xad99e7e9U, 0xf2668cd4U, 0xbe33a45eU,
>+  0xfd0db669U, 0x87ee369fU, 0xd3ec20edU, 0x9c4d7db7U, 0xdedcf0d8U, 0x7cd2ca64U,
>+  0xe25a6577U, 0x61003fd4U, 0xe56f54ccU, 0x10b7c748U, 0x40526e5eU, 0x7300ae87U,
>+  0x5c439261U, 0x2c0ff469U, 0xbf723f12U, 0xb2379b61U, 0xbf59b4f5U, 0xc91b1c3fU,
>+  0xf0046d27U, 0x0000008dU,
>+// 5**540 (i=20), start=380, end=420
>+  0x525c9e11U, 0xf4e0eb41U, 0xebb2895dU, 0x5da512f9U, 0x7d9b29d4U, 0x452f4edcU,
>+  0x0b90bc37U, 0x341777cbU, 0x63d269afU, 0x1da77929U, 0x0a5c1826U, 0x77991898U,
>+  0x5aeddf86U, 0xf853a877U, 0x538c31ccU, 0xe84896daU, 0xb7a0010bU, 0x17ef4de5U,
>+  0xa52a2adeU, 0x029fd81cU, 0x987ce701U, 0x27fefd77U, 0xdb46c66fU, 0x5d301900U,
>+  0x496998c0U, 0xbb6598b9U, 0x5eebb607U, 0xe547354aU, 0xdf4a2f7eU, 0xf06c4955U,
>+  0x96242ffaU, 0x1775fb27U, 0xbecc58ceU, 0xebf2a53bU, 0x3eaad82aU, 0xf41137baU,
>+  0x573e6fbaU, 0xfb4866b8U, 0x54002148U, 0x00000039U,
>+};
>+// clang-format on
>+
>+// Returns a pointer to the big integer data for (5**27)**i.  i must be
>+// between 1 and 20, inclusive.
>+const uint32_t* LargePowerOfFiveData(int i) {
>+  return kLargePowersOfFive + i * (i - 1);
>+}
>+
>+// Returns the size of the big integer data for (5**27)**i, in words.  i must be
>+// between 1 and 20, inclusive.
>+int LargePowerOfFiveSize(int i) { return 2 * i; }
>+}  // namespace
>+
>+const uint32_t kFiveToNth[14] = {
>+    1,     5,      25,      125,     625,      3125,      15625,
>+    78125, 390625, 1953125, 9765625, 48828125, 244140625, 1220703125,
>+};
>+
>+const uint32_t kTenToNth[10] = {
>+    1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000,
>+};
>+
>+template <int max_words>
>+int BigUnsigned<max_words>::ReadFloatMantissa(const ParsedFloat& fp,
>+                                              int significant_digits) {
>+  SetToZero();
>+  assert(fp.type == FloatType::kNumber);
>+
>+  if (fp.subrange_begin == nullptr) {
>+    // We already exactly parsed the mantissa, so no more work is necessary.
>+    words_[0] = fp.mantissa & 0xffffffffu;
>+    words_[1] = fp.mantissa >> 32;
>+    if (words_[1]) {
>+      size_ = 2;
>+    } else if (words_[0]) {
>+      size_ = 1;
>+    }
>+    return fp.exponent;
>+  }
>+  int exponent_adjust =
>+      ReadDigits(fp.subrange_begin, fp.subrange_end, significant_digits);
>+  return fp.literal_exponent + exponent_adjust;
>+}
>+
>+template <int max_words>
>+int BigUnsigned<max_words>::ReadDigits(const char* begin, const char* end,
>+                                       int significant_digits) {
>+  assert(significant_digits <= Digits10() + 1);
>+  SetToZero();
>+
>+  bool after_decimal_point = false;
>+  // Discard any leading zeroes before the decimal point
>+  while (begin < end && *begin == '0') {
>+    ++begin;
>+  }
>+  int dropped_digits = 0;
>+  // Discard any trailing zeroes.  These may or may not be after the decimal
>+  // point.
>+  while (begin < end && *std::prev(end) == '0') {
>+    --end;
>+    ++dropped_digits;
>+  }
>+  if (begin < end && *std::prev(end) == '.') {
>+    // If the std::string ends in '.', either before or after dropping zeroes, then
>+    // drop the decimal point and look for more digits to drop.
>+    dropped_digits = 0;
>+    --end;
>+    while (begin < end && *std::prev(end) == '0') {
>+      --end;
>+      ++dropped_digits;
>+    }
>+  } else if (dropped_digits) {
>+    // We dropped digits, and aren't sure if they're before or after the decimal
>+    // point.  Figure that out now.
>+    const char* dp = std::find(begin, end, '.');
>+    if (dp != end) {
>+      // The dropped trailing digits were after the decimal point, so don't
>+      // count them.
>+      dropped_digits = 0;
>+    }
>+  }
>+  // Any non-fraction digits we dropped need to be accounted for in our exponent
>+  // adjustment.
>+  int exponent_adjust = dropped_digits;
>+
>+  uint32_t queued = 0;
>+  int digits_queued = 0;
>+  for (; begin != end && significant_digits > 0; ++begin) {
>+    if (*begin == '.') {
>+      after_decimal_point = true;
>+      continue;
>+    }
>+    if (after_decimal_point) {
>+      // For each fractional digit we emit in our parsed integer, adjust our
>+      // decimal exponent to compensate.
>+      --exponent_adjust;
>+    }
>+    int digit = (*begin - '0');
>+    --significant_digits;
>+    if (significant_digits == 0 && std::next(begin) != end &&
>+        (digit == 0 || digit == 5)) {
>+      // If this is the very last significant digit, but insignificant digits
>+      // remain, we know that the last of those remaining significant digits is
>+      // nonzero.  (If it wasn't, we would have stripped it before we got here.)
>+      // So if this final digit is a 0 or 5, adjust it upward by 1.
>+      //
>+      // This adjustment is what allows incredibly large mantissas ending in
>+      // 500000...000000000001 to correctly round up, rather than to nearest.
>+      ++digit;
>+    }
>+    queued = 10 * queued + digit;
>+    ++digits_queued;
>+    if (digits_queued == kMaxSmallPowerOfTen) {
>+      MultiplyBy(kTenToNth[kMaxSmallPowerOfTen]);
>+      AddWithCarry(0, queued);
>+      queued = digits_queued = 0;
>+    }
>+  }
>+  // Encode any remaining digits.
>+  if (digits_queued) {
>+    MultiplyBy(kTenToNth[digits_queued]);
>+    AddWithCarry(0, queued);
>+  }
>+
>+  // If any insignificant digits remain, we will drop them.  But if we have not
>+  // yet read the decimal point, then we have to adjust the exponent to account
>+  // for the dropped digits.
>+  if (begin < end && !after_decimal_point) {
>+    // This call to std::find will result in a pointer either to the decimal
>+    // point, or to the end of our buffer if there was none.
>+    //
>+    // Either way, [begin, decimal_point) will contain the set of dropped digits
>+    // that require an exponent adjustment.
>+    const char* decimal_point = std::find(begin, end, '.');
>+    exponent_adjust += (decimal_point - begin);
>+  }
>+  return exponent_adjust;
>+}
>+
>+template <int max_words>
>+/* static */ BigUnsigned<max_words> BigUnsigned<max_words>::FiveToTheNth(
>+    int n) {
>+  BigUnsigned answer(1u);
>+
>+  // Seed from the table of large powers, if possible.
>+  bool first_pass = true;
>+  while (n >= kLargePowerOfFiveStep) {
>+    int big_power =
>+        std::min(n / kLargePowerOfFiveStep, kLargestPowerOfFiveIndex);
>+    if (first_pass) {
>+      // just copy, rather than multiplying by 1
>+      std::copy(
>+          LargePowerOfFiveData(big_power),
>+          LargePowerOfFiveData(big_power) + LargePowerOfFiveSize(big_power),
>+          answer.words_);
>+      answer.size_ = LargePowerOfFiveSize(big_power);
>+      first_pass = false;
>+    } else {
>+      answer.MultiplyBy(LargePowerOfFiveSize(big_power),
>+                        LargePowerOfFiveData(big_power));
>+    }
>+    n -= kLargePowerOfFiveStep * big_power;
>+  }
>+  answer.MultiplyByFiveToTheNth(n);
>+  return answer;
>+}
>+
>+template <int max_words>
>+void BigUnsigned<max_words>::MultiplyStep(int original_size,
>+                                          const uint32_t* other_words,
>+                                          int other_size, int step) {
>+  int this_i = std::min(original_size - 1, step);
>+  int other_i = step - this_i;
>+
>+  uint64_t this_word = 0;
>+  uint64_t carry = 0;
>+  for (; this_i >= 0 && other_i < other_size; --this_i, ++other_i) {
>+    uint64_t product = words_[this_i];
>+    product *= other_words[other_i];
>+    this_word += product;
>+    carry += (this_word >> 32);
>+    this_word &= 0xffffffff;
>+  }
>+  AddWithCarry(step + 1, carry);
>+  words_[step] = this_word & 0xffffffff;
>+  if (this_word > 0 && size_ <= step) {
>+    size_ = step + 1;
>+  }
>+}
>+
>+template <int max_words>
>+std::string BigUnsigned<max_words>::ToString() const {
>+  BigUnsigned<max_words> copy = *this;
>+  std::string result;
>+  // Build result in reverse order
>+  while (copy.size() > 0) {
>+    int next_digit = copy.DivMod<10>();
>+    result.push_back('0' + next_digit);
>+  }
>+  if (result.empty()) {
>+    result.push_back('0');
>+  }
>+  std::reverse(result.begin(), result.end());
>+  return result;
>+}
>+
>+template class BigUnsigned<4>;
>+template class BigUnsigned<84>;
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..aa70af2c28941acc1fd9bb070c5f5ebd3903f6d2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint.h
>@@ -0,0 +1,426 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_CHARCONV_BIGINT_H_
>+#define ABSL_STRINGS_INTERNAL_CHARCONV_BIGINT_H_
>+
>+#include <algorithm>
>+#include <cstdint>
>+#include <iostream>
>+#include <string>
>+
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/internal/charconv_parse.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// The largest power that 5 that can be raised to, and still fit in a uint32_t.
>+constexpr int kMaxSmallPowerOfFive = 13;
>+// The largest power that 10 that can be raised to, and still fit in a uint32_t.
>+constexpr int kMaxSmallPowerOfTen = 9;
>+
>+extern const uint32_t kFiveToNth[kMaxSmallPowerOfFive + 1];
>+extern const uint32_t kTenToNth[kMaxSmallPowerOfTen + 1];
>+
>+// Large, fixed-width unsigned integer.
>+//
>+// Exact rounding for decimal-to-binary floating point conversion requires very
>+// large integer math, but a design goal of absl::from_chars is to avoid
>+// allocating memory.  The integer precision needed for decimal-to-binary
>+// conversions is large but bounded, so a huge fixed-width integer class
>+// suffices.
>+//
>+// This is an intentionally limited big integer class.  Only needed operations
>+// are implemented.  All storage lives in an array data member, and all
>+// arithmetic is done in-place, to avoid requiring separate storage for operand
>+// and result.
>+//
>+// This is an internal class.  Some methods live in the .cc file, and are
>+// instantiated only for the values of max_words we need.
>+template <int max_words>
>+class BigUnsigned {
>+ public:
>+  static_assert(max_words == 4 || max_words == 84,
>+                "unsupported max_words value");
>+
>+  BigUnsigned() : size_(0), words_{} {}
>+  explicit BigUnsigned(uint32_t v) : size_(v > 0 ? 1 : 0), words_{v} {}
>+  explicit BigUnsigned(uint64_t v)
>+      : size_(0),
>+        words_{static_cast<uint32_t>(v & 0xffffffff),
>+               static_cast<uint32_t>(v >> 32)} {
>+    if (words_[1]) {
>+      size_ = 2;
>+    } else if (words_[0]) {
>+      size_ = 1;
>+    }
>+  }
>+
>+  // Constructs a BigUnsigned from the given string_view containing a decimal
>+  // value.  If the input std::string is not a decimal integer, constructs a 0
>+  // instead.
>+  explicit BigUnsigned(absl::string_view sv) : size_(0), words_{} {
>+    // Check for valid input, returning a 0 otherwise.  This is reasonable
>+    // behavior only because this constructor is for unit tests.
>+    if (std::find_if_not(sv.begin(), sv.end(), ascii_isdigit) != sv.end() ||
>+        sv.empty()) {
>+      return;
>+    }
>+    int exponent_adjust =
>+        ReadDigits(sv.data(), sv.data() + sv.size(), Digits10() + 1);
>+    if (exponent_adjust > 0) {
>+      MultiplyByTenToTheNth(exponent_adjust);
>+    }
>+  }
>+
>+  // Loads the mantissa value of a previously-parsed float.
>+  //
>+  // Returns the associated decimal exponent.  The value of the parsed float is
>+  // exactly *this * 10**exponent.
>+  int ReadFloatMantissa(const ParsedFloat& fp, int significant_digits);
>+
>+  // Returns the number of decimal digits of precision this type provides.  All
>+  // numbers with this many decimal digits or fewer are representable by this
>+  // type.
>+  //
>+  // Analagous to std::numeric_limits<BigUnsigned>::digits10.
>+  static constexpr int Digits10() {
>+    // 9975007/1035508 is very slightly less than log10(2**32).
>+    return static_cast<uint64_t>(max_words) * 9975007 / 1035508;
>+  }
>+
>+  // Shifts left by the given number of bits.
>+  void ShiftLeft(int count) {
>+    if (count > 0) {
>+      const int word_shift = count / 32;
>+      if (word_shift >= max_words) {
>+        SetToZero();
>+        return;
>+      }
>+      size_ = std::min(size_ + word_shift, max_words);
>+      count %= 32;
>+      if (count == 0) {
>+        std::copy_backward(words_, words_ + size_ - word_shift, words_ + size_);
>+      } else {
>+        for (int i = std::min(size_, max_words - 1); i > word_shift; --i) {
>+          words_[i] = (words_[i - word_shift] << count) |
>+                      (words_[i - word_shift - 1] >> (32 - count));
>+        }
>+        words_[word_shift] = words_[0] << count;
>+        // Grow size_ if necessary.
>+        if (size_ < max_words && words_[size_]) {
>+          ++size_;
>+        }
>+      }
>+      std::fill(words_, words_ + word_shift, 0u);
>+    }
>+  }
>+
>+
>+  // Multiplies by v in-place.
>+  void MultiplyBy(uint32_t v) {
>+    if (size_ == 0 || v == 1) {
>+      return;
>+    }
>+    if (v == 0) {
>+      SetToZero();
>+      return;
>+    }
>+    const uint64_t factor = v;
>+    uint64_t window = 0;
>+    for (int i = 0; i < size_; ++i) {
>+      window += factor * words_[i];
>+      words_[i] = window & 0xffffffff;
>+      window >>= 32;
>+    }
>+    // If carry bits remain and there's space for them, grow size_.
>+    if (window && size_ < max_words) {
>+      words_[size_] = window & 0xffffffff;
>+      ++size_;
>+    }
>+  }
>+
>+  void MultiplyBy(uint64_t v) {
>+    uint32_t words[2];
>+    words[0] = static_cast<uint32_t>(v);
>+    words[1] = static_cast<uint32_t>(v >> 32);
>+    if (words[1] == 0) {
>+      MultiplyBy(words[0]);
>+    } else {
>+      MultiplyBy(2, words);
>+    }
>+  }
>+
>+  // Multiplies in place by 5 to the power of n.  n must be non-negative.
>+  void MultiplyByFiveToTheNth(int n) {
>+    while (n >= kMaxSmallPowerOfFive) {
>+      MultiplyBy(kFiveToNth[kMaxSmallPowerOfFive]);
>+      n -= kMaxSmallPowerOfFive;
>+    }
>+    if (n > 0) {
>+      MultiplyBy(kFiveToNth[n]);
>+    }
>+  }
>+
>+  // Multiplies in place by 10 to the power of n.  n must be non-negative.
>+  void MultiplyByTenToTheNth(int n) {
>+    if (n > kMaxSmallPowerOfTen) {
>+      // For large n, raise to a power of 5, then shift left by the same amount.
>+      // (10**n == 5**n * 2**n.)  This requires fewer multiplications overall.
>+      MultiplyByFiveToTheNth(n);
>+      ShiftLeft(n);
>+    } else if (n > 0) {
>+      // We can do this more quickly for very small N by using a single
>+      // multiplication.
>+      MultiplyBy(kTenToNth[n]);
>+    }
>+  }
>+
>+  // Returns the value of 5**n, for non-negative n.  This implementation uses
>+  // a lookup table, and is faster then seeding a BigUnsigned with 1 and calling
>+  // MultiplyByFiveToTheNth().
>+  static BigUnsigned FiveToTheNth(int n);
>+
>+  // Multiplies by another BigUnsigned, in-place.
>+  template <int M>
>+  void MultiplyBy(const BigUnsigned<M>& other) {
>+    MultiplyBy(other.size(), other.words());
>+  }
>+
>+  void SetToZero() {
>+    std::fill(words_, words_ + size_, 0u);
>+    size_ = 0;
>+  }
>+
>+  // Returns the value of the nth word of this BigUnsigned.  This is
>+  // range-checked, and returns 0 on out-of-bounds accesses.
>+  uint32_t GetWord(int index) const {
>+    if (index < 0 || index >= size_) {
>+      return 0;
>+    }
>+    return words_[index];
>+  }
>+
>+  // Returns this integer as a decimal std::string.  This is not used in the decimal-
>+  // to-binary conversion; it is intended to aid in testing.
>+  std::string ToString() const;
>+
>+  int size() const { return size_; }
>+  const uint32_t* words() const { return words_; }
>+
>+ private:
>+  // Reads the number between [begin, end), possibly containing a decimal point,
>+  // into this BigUnsigned.
>+  //
>+  // Callers are required to ensure [begin, end) contains a valid number, with
>+  // one or more decimal digits and at most one decimal point.  This routine
>+  // will behave unpredictably if these preconditions are not met.
>+  //
>+  // Only the first `significant_digits` digits are read.  Digits beyond this
>+  // limit are "sticky": If the final significant digit is 0 or 5, and if any
>+  // dropped digit is nonzero, then that final significant digit is adjusted up
>+  // to 1 or 6.  This adjustment allows for precise rounding.
>+  //
>+  // Returns `exponent_adjustment`, a power-of-ten exponent adjustment to
>+  // account for the decimal point and for dropped significant digits.  After
>+  // this function returns,
>+  //   actual_value_of_parsed_string ~= *this * 10**exponent_adjustment.
>+  int ReadDigits(const char* begin, const char* end, int significant_digits);
>+
>+  // Performs a step of big integer multiplication.  This computes the full
>+  // (64-bit-wide) values that should be added at the given index (step), and
>+  // adds to that location in-place.
>+  //
>+  // Because our math all occurs in place, we must multiply starting from the
>+  // highest word working downward.  (This is a bit more expensive due to the
>+  // extra carries involved.)
>+  //
>+  // This must be called in steps, for each word to be calculated, starting from
>+  // the high end and working down to 0.  The first value of `step` should be
>+  //   `std::min(original_size + other.size_ - 2, max_words - 1)`.
>+  // The reason for this expression is that multiplying the i'th word from one
>+  // multiplicand and the j'th word of another multiplicand creates a
>+  // two-word-wide value to be stored at the (i+j)'th element.  The highest
>+  // word indices we will access are `original_size - 1` from this object, and
>+  // `other.size_ - 1` from our operand.  Therefore,
>+  // `original_size + other.size_ - 2` is the first step we should calculate,
>+  // but limited on an upper bound by max_words.
>+
>+  // Working from high-to-low ensures that we do not overwrite the portions of
>+  // the initial value of *this which are still needed for later steps.
>+  //
>+  // Once called with step == 0, *this contains the result of the
>+  // multiplication.
>+  //
>+  // `original_size` is the size_ of *this before the first call to
>+  // MultiplyStep().  `other_words` and `other_size` are the contents of our
>+  // operand.  `step` is the step to perform, as described above.
>+  void MultiplyStep(int original_size, const uint32_t* other_words,
>+                    int other_size, int step);
>+
>+  void MultiplyBy(int other_size, const uint32_t* other_words) {
>+    const int original_size = size_;
>+    const int first_step =
>+        std::min(original_size + other_size - 2, max_words - 1);
>+    for (int step = first_step; step >= 0; --step) {
>+      MultiplyStep(original_size, other_words, other_size, step);
>+    }
>+  }
>+
>+  // Adds a 32-bit value to the index'th word, with carry.
>+  void AddWithCarry(int index, uint32_t value) {
>+    if (value) {
>+      while (index < max_words && value > 0) {
>+        words_[index] += value;
>+        // carry if we overflowed in this word:
>+        if (value > words_[index]) {
>+          value = 1;
>+          ++index;
>+        } else {
>+          value = 0;
>+        }
>+      }
>+      size_ = std::min(max_words, std::max(index + 1, size_));
>+    }
>+  }
>+
>+  void AddWithCarry(int index, uint64_t value) {
>+    if (value && index < max_words) {
>+      uint32_t high = value >> 32;
>+      uint32_t low = value & 0xffffffff;
>+      words_[index] += low;
>+      if (words_[index] < low) {
>+        ++high;
>+        if (high == 0) {
>+          // Carry from the low word caused our high word to overflow.
>+          // Short circuit here to do the right thing.
>+          AddWithCarry(index + 2, static_cast<uint32_t>(1));
>+          return;
>+        }
>+      }
>+      if (high > 0) {
>+        AddWithCarry(index + 1, high);
>+      } else {
>+        // Normally 32-bit AddWithCarry() sets size_, but since we don't call
>+        // it when `high` is 0, do it ourselves here.
>+        size_ = std::min(max_words, std::max(index + 1, size_));
>+      }
>+    }
>+  }
>+
>+  // Divide this in place by a constant divisor.  Returns the remainder of the
>+  // division.
>+  template <uint32_t divisor>
>+  uint32_t DivMod() {
>+    uint64_t accumulator = 0;
>+    for (int i = size_ - 1; i >= 0; --i) {
>+      accumulator <<= 32;
>+      accumulator += words_[i];
>+      // accumulator / divisor will never overflow an int32_t in this loop
>+      words_[i] = static_cast<uint32_t>(accumulator / divisor);
>+      accumulator = accumulator % divisor;
>+    }
>+    while (size_ > 0 && words_[size_ - 1] == 0) {
>+      --size_;
>+    }
>+    return static_cast<uint32_t>(accumulator);
>+  }
>+
>+  // The number of elements in words_ that may carry significant values.
>+  // All elements beyond this point are 0.
>+  //
>+  // When size_ is 0, this BigUnsigned stores the value 0.
>+  // When size_ is nonzero, is *not* guaranteed that words_[size_ - 1] is
>+  // nonzero.  This can occur due to overflow truncation.
>+  // In particular, x.size_ != y.size_ does *not* imply x != y.
>+  int size_;
>+  uint32_t words_[max_words];
>+};
>+
>+// Compares two big integer instances.
>+//
>+// Returns -1 if lhs < rhs, 0 if lhs == rhs, and 1 if lhs > rhs.
>+template <int N, int M>
>+int Compare(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  int limit = std::max(lhs.size(), rhs.size());
>+  for (int i = limit - 1; i >= 0; --i) {
>+    const uint32_t lhs_word = lhs.GetWord(i);
>+    const uint32_t rhs_word = rhs.GetWord(i);
>+    if (lhs_word < rhs_word) {
>+      return -1;
>+    } else if (lhs_word > rhs_word) {
>+      return 1;
>+    }
>+  }
>+  return 0;
>+}
>+
>+template <int N, int M>
>+bool operator==(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  int limit = std::max(lhs.size(), rhs.size());
>+  for (int i = 0; i < limit; ++i) {
>+    if (lhs.GetWord(i) != rhs.GetWord(i)) {
>+      return false;
>+    }
>+  }
>+  return true;
>+}
>+
>+template <int N, int M>
>+bool operator!=(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  return !(lhs == rhs);
>+}
>+
>+template <int N, int M>
>+bool operator<(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  return Compare(lhs, rhs) == -1;
>+}
>+
>+template <int N, int M>
>+bool operator>(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  return rhs < lhs;
>+}
>+template <int N, int M>
>+bool operator<=(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  return !(rhs < lhs);
>+}
>+template <int N, int M>
>+bool operator>=(const BigUnsigned<N>& lhs, const BigUnsigned<M>& rhs) {
>+  return !(lhs < rhs);
>+}
>+
>+// Output operator for BigUnsigned, for testing purposes only.
>+template <int N>
>+std::ostream& operator<<(std::ostream& os, const BigUnsigned<N>& num) {
>+  return os << num.ToString();
>+}
>+
>+// Explicit instantiation declarations for the sizes of BigUnsigned that we
>+// are using.
>+//
>+// For now, the choices of 4 and 84 are arbitrary; 4 is a small value that is
>+// still bigger than an int128, and 84 is a large value we will want to use
>+// in the from_chars implementation.
>+//
>+// Comments justifying the use of 84 belong in the from_chars implementation,
>+// and will be added in a follow-up CL.
>+extern template class BigUnsigned<4>;
>+extern template class BigUnsigned<84>;
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_CHARCONV_BIGINT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9b6357888fbf47ebdcc6cd516b81ad140b97cba5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_bigint_test.cc
>@@ -0,0 +1,203 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/charconv_bigint.h"
>+
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+TEST(BigUnsigned, ShiftLeft) {
>+  {
>+    // Check that 3 * 2**100 is calculated correctly
>+    BigUnsigned<4> num(3u);
>+    num.ShiftLeft(100);
>+    EXPECT_EQ(num, BigUnsigned<4>("3802951800684688204490109616128"));
>+  }
>+  {
>+    // Test that overflow is truncated properly.
>+    // 15 is 4 bits long, and BigUnsigned<4> is a 128-bit bigint.
>+    // Shifting left by 125 bits should truncate off the high bit, so that
>+    //   15 << 125 == 7 << 125
>+    // after truncation.
>+    BigUnsigned<4> a(15u);
>+    BigUnsigned<4> b(7u);
>+    BigUnsigned<4> c(3u);
>+    a.ShiftLeft(125);
>+    b.ShiftLeft(125);
>+    c.ShiftLeft(125);
>+    EXPECT_EQ(a, b);
>+    EXPECT_NE(a, c);
>+  }
>+  {
>+    // Same test, larger bigint:
>+    BigUnsigned<84> a(15u);
>+    BigUnsigned<84> b(7u);
>+    BigUnsigned<84> c(3u);
>+    a.ShiftLeft(84 * 32 - 3);
>+    b.ShiftLeft(84 * 32 - 3);
>+    c.ShiftLeft(84 * 32 - 3);
>+    EXPECT_EQ(a, b);
>+    EXPECT_NE(a, c);
>+  }
>+  {
>+    // Check that incrementally shifting has the same result as doing it all at
>+    // once (attempting to capture corner cases.)
>+    const std::string seed = "1234567890123456789012345678901234567890";
>+    BigUnsigned<84> a(seed);
>+    for (int i = 1; i <= 84 * 32; ++i) {
>+      a.ShiftLeft(1);
>+      BigUnsigned<84> b(seed);
>+      b.ShiftLeft(i);
>+      EXPECT_EQ(a, b);
>+    }
>+    // And we should have fully rotated all bits off by now:
>+    EXPECT_EQ(a, BigUnsigned<84>(0u));
>+  }
>+}
>+
>+TEST(BigUnsigned, MultiplyByUint32) {
>+  const BigUnsigned<84> factorial_100(
>+      "933262154439441526816992388562667004907159682643816214685929638952175999"
>+      "932299156089414639761565182862536979208272237582511852109168640000000000"
>+      "00000000000000");
>+  BigUnsigned<84> a(1u);
>+  for (uint32_t i = 1; i <= 100; ++i) {
>+    a.MultiplyBy(i);
>+  }
>+  EXPECT_EQ(a, BigUnsigned<84>(factorial_100));
>+}
>+
>+TEST(BigUnsigned, MultiplyByBigUnsigned) {
>+  {
>+    // Put the terms of factorial_200 into two bigints, and multiply them
>+    // together.
>+    const BigUnsigned<84> factorial_200(
>+        "7886578673647905035523632139321850622951359776871732632947425332443594"
>+        "4996340334292030428401198462390417721213891963883025764279024263710506"
>+        "1926624952829931113462857270763317237396988943922445621451664240254033"
>+        "2918641312274282948532775242424075739032403212574055795686602260319041"
>+        "7032406235170085879617892222278962370389737472000000000000000000000000"
>+        "0000000000000000000000000");
>+    BigUnsigned<84> evens(1u);
>+    BigUnsigned<84> odds(1u);
>+    for (uint32_t i = 1; i < 200; i += 2) {
>+      odds.MultiplyBy(i);
>+      evens.MultiplyBy(i + 1);
>+    }
>+    evens.MultiplyBy(odds);
>+    EXPECT_EQ(evens, factorial_200);
>+  }
>+  {
>+    // Multiply various powers of 10 together.
>+    for (int a = 0 ; a < 700; a += 25) {
>+      SCOPED_TRACE(a);
>+      BigUnsigned<84> a_value("3" + std::string(a, '0'));
>+      for (int b = 0; b < (700 - a); b += 25) {
>+        SCOPED_TRACE(b);
>+        BigUnsigned<84> b_value("2" + std::string(b, '0'));
>+        BigUnsigned<84> expected_product("6" + std::string(a + b, '0'));
>+        b_value.MultiplyBy(a_value);
>+        EXPECT_EQ(b_value, expected_product);
>+      }
>+    }
>+  }
>+}
>+
>+TEST(BigUnsigned, MultiplyByOverflow) {
>+  {
>+    // Check that multiplcation overflow predictably truncates.
>+
>+    // A big int with all bits on.
>+    BigUnsigned<4> all_bits_on("340282366920938463463374607431768211455");
>+    // Modulo 2**128, this is equal to -1.  Therefore the square of this,
>+    // modulo 2**128, should be 1.
>+    all_bits_on.MultiplyBy(all_bits_on);
>+    EXPECT_EQ(all_bits_on, BigUnsigned<4>(1u));
>+  }
>+  {
>+    // Try multiplying a large bigint by 2**50, and compare the result to
>+    // shifting.
>+    BigUnsigned<4> value_1("12345678901234567890123456789012345678");
>+    BigUnsigned<4> value_2("12345678901234567890123456789012345678");
>+    BigUnsigned<4> two_to_fiftieth(1u);
>+    two_to_fiftieth.ShiftLeft(50);
>+
>+    value_1.ShiftLeft(50);
>+    value_2.MultiplyBy(two_to_fiftieth);
>+    EXPECT_EQ(value_1, value_2);
>+  }
>+}
>+
>+TEST(BigUnsigned, FiveToTheNth) {
>+  {
>+    // Sanity check that MultiplyByFiveToTheNth gives consistent answers, up to
>+    // and including overflow.
>+    for (int i = 0; i < 1160; ++i) {
>+      SCOPED_TRACE(i);
>+      BigUnsigned<84> value_1(123u);
>+      BigUnsigned<84> value_2(123u);
>+      value_1.MultiplyByFiveToTheNth(i);
>+      for (int j = 0; j < i; j++) {
>+        value_2.MultiplyBy(5u);
>+      }
>+      EXPECT_EQ(value_1, value_2);
>+    }
>+  }
>+  {
>+    // Check that the faster, table-lookup-based static method returns the same
>+    // result that multiplying in-place would return, up to and including
>+    // overflow.
>+    for (int i = 0; i < 1160; ++i) {
>+      SCOPED_TRACE(i);
>+      BigUnsigned<84> value_1(1u);
>+      value_1.MultiplyByFiveToTheNth(i);
>+      BigUnsigned<84> value_2 = BigUnsigned<84>::FiveToTheNth(i);
>+      EXPECT_EQ(value_1, value_2);
>+    }
>+  }
>+}
>+
>+TEST(BigUnsigned, TenToTheNth) {
>+  {
>+    // Sanity check MultiplyByTenToTheNth.
>+    for (int i = 0; i < 800; ++i) {
>+      SCOPED_TRACE(i);
>+      BigUnsigned<84> value_1(123u);
>+      BigUnsigned<84> value_2(123u);
>+      value_1.MultiplyByTenToTheNth(i);
>+      for (int j = 0; j < i; j++) {
>+        value_2.MultiplyBy(10u);
>+      }
>+      EXPECT_EQ(value_1, value_2);
>+    }
>+  }
>+  {
>+    // Alternate testing approach, taking advantage of the decimal parser.
>+    for (int i = 0; i < 200; ++i) {
>+      SCOPED_TRACE(i);
>+      BigUnsigned<84> value_1(135u);
>+      value_1.MultiplyByTenToTheNth(i);
>+      BigUnsigned<84> value_2("135" + std::string(i, '0'));
>+      EXPECT_EQ(value_1, value_2);
>+    }
>+  }
>+}
>+
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a04cc67669a7f75f936a767c5f223cb3592d9ebb
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.cc
>@@ -0,0 +1,496 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/charconv_parse.h"
>+#include "absl/strings/charconv.h"
>+
>+#include <cassert>
>+#include <cstdint>
>+#include <limits>
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+namespace absl {
>+namespace {
>+
>+// ParseFloat<10> will read the first 19 significant digits of the mantissa.
>+// This number was chosen for multiple reasons.
>+//
>+// (a) First, for whatever integer type we choose to represent the mantissa, we
>+// want to choose the largest possible number of decimal digits for that integer
>+// type.  We are using uint64_t, which can express any 19-digit unsigned
>+// integer.
>+//
>+// (b) Second, we need to parse enough digits that the binary value of any
>+// mantissa we capture has more bits of resolution than the mantissa
>+// representation in the target float.  Our algorithm requires at least 3 bits
>+// of headway, but 19 decimal digits give a little more than that.
>+//
>+// The following static assertions verify the above comments:
>+constexpr int kDecimalMantissaDigitsMax = 19;
>+
>+static_assert(std::numeric_limits<uint64_t>::digits10 ==
>+                  kDecimalMantissaDigitsMax,
>+              "(a) above");
>+
>+// IEEE doubles, which we assume in Abseil, have 53 binary bits of mantissa.
>+static_assert(std::numeric_limits<double>::is_iec559, "IEEE double assumed");
>+static_assert(std::numeric_limits<double>::radix == 2, "IEEE double fact");
>+static_assert(std::numeric_limits<double>::digits == 53, "IEEE double fact");
>+
>+// The lowest valued 19-digit decimal mantissa we can read still contains
>+// sufficient information to reconstruct a binary mantissa.
>+static_assert(1000000000000000000u > (uint64_t(1) << (53 + 3)), "(b) above");
>+
>+// ParseFloat<16> will read the first 15 significant digits of the mantissa.
>+//
>+// Because a base-16-to-base-2 conversion can be done exactly, we do not need
>+// to maximize the number of scanned hex digits to improve our conversion.  What
>+// is required is to scan two more bits than the mantissa can represent, so that
>+// we always round correctly.
>+//
>+// (One extra bit does not suffice to perform correct rounding, since a number
>+// exactly halfway between two representable floats has unique rounding rules,
>+// so we need to differentiate between a "halfway between" number and a "closer
>+// to the larger value" number.)
>+constexpr int kHexadecimalMantissaDigitsMax = 15;
>+
>+// The minimum number of significant bits that will be read from
>+// kHexadecimalMantissaDigitsMax hex digits.  We must subtract by three, since
>+// the most significant digit can be a "1", which only contributes a single
>+// significant bit.
>+constexpr int kGuaranteedHexadecimalMantissaBitPrecision =
>+    4 * kHexadecimalMantissaDigitsMax - 3;
>+
>+static_assert(kGuaranteedHexadecimalMantissaBitPrecision >
>+                  std::numeric_limits<double>::digits + 2,
>+              "kHexadecimalMantissaDigitsMax too small");
>+
>+// We also impose a limit on the number of significant digits we will read from
>+// an exponent, to avoid having to deal with integer overflow.  We use 9 for
>+// this purpose.
>+//
>+// If we read a 9 digit exponent, the end result of the conversion will
>+// necessarily be infinity or zero, depending on the sign of the exponent.
>+// Therefore we can just drop extra digits on the floor without any extra
>+// logic.
>+constexpr int kDecimalExponentDigitsMax = 9;
>+static_assert(std::numeric_limits<int>::digits10 >= kDecimalExponentDigitsMax,
>+              "int type too small");
>+
>+// To avoid incredibly large inputs causing integer overflow for our exponent,
>+// we impose an arbitrary but very large limit on the number of significant
>+// digits we will accept.  The implementation refuses to match a std::string with
>+// more consecutive significant mantissa digits than this.
>+constexpr int kDecimalDigitLimit = 50000000;
>+
>+// Corresponding limit for hexadecimal digit inputs.  This is one fourth the
>+// amount of kDecimalDigitLimit, since each dropped hexadecimal digit requires
>+// a binary exponent adjustment of 4.
>+constexpr int kHexadecimalDigitLimit = kDecimalDigitLimit / 4;
>+
>+// The largest exponent we can read is 999999999 (per
>+// kDecimalExponentDigitsMax), and the largest exponent adjustment we can get
>+// from dropped mantissa digits is 2 * kDecimalDigitLimit, and the sum of these
>+// comfortably fits in an integer.
>+//
>+// We count kDecimalDigitLimit twice because there are independent limits for
>+// numbers before and after the decimal point.  (In the case where there are no
>+// significant digits before the decimal point, there are independent limits for
>+// post-decimal-point leading zeroes and for significant digits.)
>+static_assert(999999999 + 2 * kDecimalDigitLimit <
>+                  std::numeric_limits<int>::max(),
>+              "int type too small");
>+static_assert(999999999 + 2 * (4 * kHexadecimalDigitLimit) <
>+                  std::numeric_limits<int>::max(),
>+              "int type too small");
>+
>+// Returns true if the provided bitfield allows parsing an exponent value
>+// (e.g., "1.5e100").
>+bool AllowExponent(chars_format flags) {
>+  bool fixed = (flags & chars_format::fixed) == chars_format::fixed;
>+  bool scientific =
>+      (flags & chars_format::scientific) == chars_format::scientific;
>+  return scientific || !fixed;
>+}
>+
>+// Returns true if the provided bitfield requires an exponent value be present.
>+bool RequireExponent(chars_format flags) {
>+  bool fixed = (flags & chars_format::fixed) == chars_format::fixed;
>+  bool scientific =
>+      (flags & chars_format::scientific) == chars_format::scientific;
>+  return scientific && !fixed;
>+}
>+
>+const int8_t kAsciiToInt[256] = {
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0,  1,  2,  3,  4,  5,  6,  7,  8,
>+    9,  -1, -1, -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
>+    -1, -1, -1, -1, -1, -1, -1, -1, -1};
>+
>+// Returns true if `ch` is a digit in the given base
>+template <int base>
>+bool IsDigit(char ch);
>+
>+// Converts a valid `ch` to its digit value in the given base.
>+template <int base>
>+unsigned ToDigit(char ch);
>+
>+// Returns true if `ch` is the exponent delimiter for the given base.
>+template <int base>
>+bool IsExponentCharacter(char ch);
>+
>+// Returns the maximum number of significant digits we will read for a float
>+// in the given base.
>+template <int base>
>+constexpr int MantissaDigitsMax();
>+
>+// Returns the largest consecutive run of digits we will accept when parsing a
>+// number in the given base.
>+template <int base>
>+constexpr int DigitLimit();
>+
>+// Returns the amount the exponent must be adjusted by for each dropped digit.
>+// (For decimal this is 1, since the digits are in base 10 and the exponent base
>+// is also 10, but for hexadecimal this is 4, since the digits are base 16 but
>+// the exponent base is 2.)
>+template <int base>
>+constexpr int DigitMagnitude();
>+
>+template <>
>+bool IsDigit<10>(char ch) {
>+  return ch >= '0' && ch <= '9';
>+}
>+template <>
>+bool IsDigit<16>(char ch) {
>+  return kAsciiToInt[static_cast<unsigned char>(ch)] >= 0;
>+}
>+
>+template <>
>+unsigned ToDigit<10>(char ch) {
>+  return ch - '0';
>+}
>+template <>
>+unsigned ToDigit<16>(char ch) {
>+  return kAsciiToInt[static_cast<unsigned char>(ch)];
>+}
>+
>+template <>
>+bool IsExponentCharacter<10>(char ch) {
>+  return ch == 'e' || ch == 'E';
>+}
>+
>+template <>
>+bool IsExponentCharacter<16>(char ch) {
>+  return ch == 'p' || ch == 'P';
>+}
>+
>+template <>
>+constexpr int MantissaDigitsMax<10>() {
>+  return kDecimalMantissaDigitsMax;
>+}
>+template <>
>+constexpr int MantissaDigitsMax<16>() {
>+  return kHexadecimalMantissaDigitsMax;
>+}
>+
>+template <>
>+constexpr int DigitLimit<10>() {
>+  return kDecimalDigitLimit;
>+}
>+template <>
>+constexpr int DigitLimit<16>() {
>+  return kHexadecimalDigitLimit;
>+}
>+
>+template <>
>+constexpr int DigitMagnitude<10>() {
>+  return 1;
>+}
>+template <>
>+constexpr int DigitMagnitude<16>() {
>+  return 4;
>+}
>+
>+// Reads decimal digits from [begin, end) into *out.  Returns the number of
>+// digits consumed.
>+//
>+// After max_digits has been read, keeps consuming characters, but no longer
>+// adjusts *out.  If a nonzero digit is dropped this way, *dropped_nonzero_digit
>+// is set; otherwise, it is left unmodified.
>+//
>+// If no digits are matched, returns 0 and leaves *out unchanged.
>+//
>+// ConsumeDigits does not protect against overflow on *out; max_digits must
>+// be chosen with respect to type T to avoid the possibility of overflow.
>+template <int base, typename T>
>+std::size_t ConsumeDigits(const char* begin, const char* end, int max_digits,
>+                          T* out, bool* dropped_nonzero_digit) {
>+  if (base == 10) {
>+    assert(max_digits <= std::numeric_limits<T>::digits10);
>+  } else if (base == 16) {
>+    assert(max_digits * 4 <= std::numeric_limits<T>::digits);
>+  }
>+  const char* const original_begin = begin;
>+  T accumulator = *out;
>+  const char* significant_digits_end =
>+      (end - begin > max_digits) ? begin + max_digits : end;
>+  while (begin < significant_digits_end && IsDigit<base>(*begin)) {
>+    // Do not guard against *out overflow; max_digits was chosen to avoid this.
>+    // Do assert against it, to detect problems in debug builds.
>+    auto digit = static_cast<T>(ToDigit<base>(*begin));
>+    assert(accumulator * base >= accumulator);
>+    accumulator *= base;
>+    assert(accumulator + digit >= accumulator);
>+    accumulator += digit;
>+    ++begin;
>+  }
>+  bool dropped_nonzero = false;
>+  while (begin < end && IsDigit<base>(*begin)) {
>+    dropped_nonzero = dropped_nonzero || (*begin != '0');
>+    ++begin;
>+  }
>+  if (dropped_nonzero && dropped_nonzero_digit != nullptr) {
>+    *dropped_nonzero_digit = true;
>+  }
>+  *out = accumulator;
>+  return begin - original_begin;
>+}
>+
>+// Returns true if `v` is one of the chars allowed inside parentheses following
>+// a NaN.
>+bool IsNanChar(char v) {
>+  return (v == '_') || (v >= '0' && v <= '9') || (v >= 'a' && v <= 'z') ||
>+         (v >= 'A' && v <= 'Z');
>+}
>+
>+// Checks the range [begin, end) for a strtod()-formatted infinity or NaN.  If
>+// one is found, sets `out` appropriately and returns true.
>+bool ParseInfinityOrNan(const char* begin, const char* end,
>+                        strings_internal::ParsedFloat* out) {
>+  if (end - begin < 3) {
>+    return false;
>+  }
>+  switch (*begin) {
>+    case 'i':
>+    case 'I': {
>+      // An infinity std::string consists of the characters "inf" or "infinity",
>+      // case insensitive.
>+      if (strings_internal::memcasecmp(begin + 1, "nf", 2) != 0) {
>+        return false;
>+      }
>+      out->type = strings_internal::FloatType::kInfinity;
>+      if (end - begin >= 8 &&
>+          strings_internal::memcasecmp(begin + 3, "inity", 5) == 0) {
>+        out->end = begin + 8;
>+      } else {
>+        out->end = begin + 3;
>+      }
>+      return true;
>+    }
>+    case 'n':
>+    case 'N': {
>+      // A NaN consists of the characters "nan", case insensitive, optionally
>+      // followed by a parenthesized sequence of zero or more alphanumeric
>+      // characters and/or underscores.
>+      if (strings_internal::memcasecmp(begin + 1, "an", 2) != 0) {
>+        return false;
>+      }
>+      out->type = strings_internal::FloatType::kNan;
>+      out->end = begin + 3;
>+      // NaN is allowed to be followed by a parenthesized std::string, consisting of
>+      // only the characters [a-zA-Z0-9_].  Match that if it's present.
>+      begin += 3;
>+      if (begin < end && *begin == '(') {
>+        const char* nan_begin = begin + 1;
>+        while (nan_begin < end && IsNanChar(*nan_begin)) {
>+          ++nan_begin;
>+        }
>+        if (nan_begin < end && *nan_begin == ')') {
>+          // We found an extra NaN specifier range
>+          out->subrange_begin = begin + 1;
>+          out->subrange_end = nan_begin;
>+          out->end = nan_begin + 1;
>+        }
>+      }
>+      return true;
>+    }
>+    default:
>+      return false;
>+  }
>+}
>+}  // namespace
>+
>+namespace strings_internal {
>+
>+template <int base>
>+strings_internal::ParsedFloat ParseFloat(const char* begin, const char* end,
>+                                         chars_format format_flags) {
>+  strings_internal::ParsedFloat result;
>+
>+  // Exit early if we're given an empty range.
>+  if (begin == end) return result;
>+
>+  // Handle the infinity and NaN cases.
>+  if (ParseInfinityOrNan(begin, end, &result)) {
>+    return result;
>+  }
>+
>+  const char* const mantissa_begin = begin;
>+  while (begin < end && *begin == '0') {
>+    ++begin;  // skip leading zeros
>+  }
>+  uint64_t mantissa = 0;
>+
>+  int exponent_adjustment = 0;
>+  bool mantissa_is_inexact = false;
>+  std::size_t pre_decimal_digits = ConsumeDigits<base>(
>+      begin, end, MantissaDigitsMax<base>(), &mantissa, &mantissa_is_inexact);
>+  begin += pre_decimal_digits;
>+  int digits_left;
>+  if (pre_decimal_digits >= DigitLimit<base>()) {
>+    // refuse to parse pathological inputs
>+    return result;
>+  } else if (pre_decimal_digits > MantissaDigitsMax<base>()) {
>+    // We dropped some non-fraction digits on the floor.  Adjust our exponent
>+    // to compensate.
>+    exponent_adjustment =
>+        static_cast<int>(pre_decimal_digits - MantissaDigitsMax<base>());
>+    digits_left = 0;
>+  } else {
>+    digits_left =
>+        static_cast<int>(MantissaDigitsMax<base>() - pre_decimal_digits);
>+  }
>+  if (begin < end && *begin == '.') {
>+    ++begin;
>+    if (mantissa == 0) {
>+      // If we haven't seen any nonzero digits yet, keep skipping zeros.  We
>+      // have to adjust the exponent to reflect the changed place value.
>+      const char* begin_zeros = begin;
>+      while (begin < end && *begin == '0') {
>+        ++begin;
>+      }
>+      std::size_t zeros_skipped = begin - begin_zeros;
>+      if (zeros_skipped >= DigitLimit<base>()) {
>+        // refuse to parse pathological inputs
>+        return result;
>+      }
>+      exponent_adjustment -= static_cast<int>(zeros_skipped);
>+    }
>+    std::size_t post_decimal_digits = ConsumeDigits<base>(
>+        begin, end, digits_left, &mantissa, &mantissa_is_inexact);
>+    begin += post_decimal_digits;
>+
>+    // Since `mantissa` is an integer, each significant digit we read after
>+    // the decimal point requires an adjustment to the exponent. "1.23e0" will
>+    // be stored as `mantissa` == 123 and `exponent` == -2 (that is,
>+    // "123e-2").
>+    if (post_decimal_digits >= DigitLimit<base>()) {
>+      // refuse to parse pathological inputs
>+      return result;
>+    } else if (post_decimal_digits > digits_left) {
>+      exponent_adjustment -= digits_left;
>+    } else {
>+      exponent_adjustment -= post_decimal_digits;
>+    }
>+  }
>+  // If we've found no mantissa whatsoever, this isn't a number.
>+  if (mantissa_begin == begin) {
>+    return result;
>+  }
>+  // A bare "." doesn't count as a mantissa either.
>+  if (begin - mantissa_begin == 1 && *mantissa_begin == '.') {
>+    return result;
>+  }
>+
>+  if (mantissa_is_inexact) {
>+    // We dropped significant digits on the floor.  Handle this appropriately.
>+    if (base == 10) {
>+      // If we truncated significant decimal digits, store the full range of the
>+      // mantissa for future big integer math for exact rounding.
>+      result.subrange_begin = mantissa_begin;
>+      result.subrange_end = begin;
>+    } else if (base == 16) {
>+      // If we truncated hex digits, reflect this fact by setting the low
>+      // ("sticky") bit.  This allows for correct rounding in all cases.
>+      mantissa |= 1;
>+    }
>+  }
>+  result.mantissa = mantissa;
>+
>+  const char* const exponent_begin = begin;
>+  result.literal_exponent = 0;
>+  bool found_exponent = false;
>+  if (AllowExponent(format_flags) && begin < end &&
>+      IsExponentCharacter<base>(*begin)) {
>+    bool negative_exponent = false;
>+    ++begin;
>+    if (begin < end && *begin == '-') {
>+      negative_exponent = true;
>+      ++begin;
>+    } else if (begin < end && *begin == '+') {
>+      ++begin;
>+    }
>+    const char* const exponent_digits_begin = begin;
>+    // Exponent is always expressed in decimal, even for hexadecimal floats.
>+    begin += ConsumeDigits<10>(begin, end, kDecimalExponentDigitsMax,
>+                               &result.literal_exponent, nullptr);
>+    if (begin == exponent_digits_begin) {
>+      // there were no digits where we expected an exponent.  We failed to read
>+      // an exponent and should not consume the 'e' after all.  Rewind 'begin'.
>+      found_exponent = false;
>+      begin = exponent_begin;
>+    } else {
>+      found_exponent = true;
>+      if (negative_exponent) {
>+        result.literal_exponent = -result.literal_exponent;
>+      }
>+    }
>+  }
>+
>+  if (!found_exponent && RequireExponent(format_flags)) {
>+    // Provided flags required an exponent, but none was found.  This results
>+    // in a failure to scan.
>+    return result;
>+  }
>+
>+  // Success!
>+  result.type = strings_internal::FloatType::kNumber;
>+  if (result.mantissa > 0) {
>+    result.exponent = result.literal_exponent +
>+                      (DigitMagnitude<base>() * exponent_adjustment);
>+  } else {
>+    result.exponent = 0;
>+  }
>+  result.end = begin;
>+  return result;
>+}
>+
>+template ParsedFloat ParseFloat<10>(const char* begin, const char* end,
>+                                    chars_format format_flags);
>+template ParsedFloat ParseFloat<16>(const char* begin, const char* end,
>+                                    chars_format format_flags);
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7a5c0874b804a58538989aaa0fd6d6dd8b31b28b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse.h
>@@ -0,0 +1,96 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_CHARCONV_PARSE_H_
>+#define ABSL_STRINGS_INTERNAL_CHARCONV_PARSE_H_
>+
>+#include <cstdint>
>+
>+#include "absl/strings/charconv.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// Enum indicating whether a parsed float is a number or special value.
>+enum class FloatType { kNumber, kInfinity, kNan };
>+
>+// The decomposed parts of a parsed `float` or `double`.
>+struct ParsedFloat {
>+  // Representation of the parsed mantissa, with the decimal point adjusted to
>+  // make it an integer.
>+  //
>+  // During decimal scanning, this contains 19 significant digits worth of
>+  // mantissa value.  If digits beyond this point are found, they
>+  // are truncated, and if any of these dropped digits are nonzero, then
>+  // `mantissa` is inexact, and the full mantissa is stored in [subrange_begin,
>+  // subrange_end).
>+  //
>+  // During hexadecimal scanning, this contains 15 significant hex digits worth
>+  // of mantissa value.  Digits beyond this point are sticky -- they are
>+  // truncated, but if any dropped digits are nonzero, the low bit of mantissa
>+  // will be set.  (This allows for precise rounding, and avoids the need
>+  // to store the full mantissa in [subrange_begin, subrange_end).)
>+  uint64_t mantissa = 0;
>+
>+  // Floating point expontent.  This reflects any decimal point adjustments and
>+  // any truncated digits from the mantissa.  The absolute value of the parsed
>+  // number is represented by mantissa * (base ** exponent), where base==10 for
>+  // decimal floats, and base==2 for hexadecimal floats.
>+  int exponent = 0;
>+
>+  // The literal exponent value scanned from the input, or 0 if none was
>+  // present.  This does not reflect any adjustments applied to mantissa.
>+  int literal_exponent = 0;
>+
>+  // The type of number scanned.
>+  FloatType type = FloatType::kNumber;
>+
>+  // When non-null, [subrange_begin, subrange_end) marks a range of characters
>+  // that require further processing.  The meaning is dependent on float type.
>+  // If type == kNumber and this is set, this is a "wide input": the input
>+  // mantissa contained more than 19 digits.  The range contains the full
>+  // mantissa.  It plus `literal_exponent` need to be examined to find the best
>+  // floating point match.
>+  // If type == kNan and this is set, the range marks the contents of a
>+  // matched parenthesized character region after the NaN.
>+  const char* subrange_begin = nullptr;
>+  const char* subrange_end = nullptr;
>+
>+  // One-past-the-end of the successfully parsed region, or nullptr if no
>+  // matching pattern was found.
>+  const char* end = nullptr;
>+};
>+
>+// Read the floating point number in the provided range, and populate
>+// ParsedFloat accordingly.
>+//
>+// format_flags is a bitmask value specifying what patterns this API will match.
>+// `scientific` and `fixed`  are honored per std::from_chars rules
>+// ([utility.from.chars], C++17): if exactly one of these bits is set, then an
>+// exponent is required, or dislallowed, respectively.
>+//
>+// Template parameter `base` must be either 10 or 16.  For base 16, a "0x" is
>+// *not* consumed.  The `hex` bit from format_flags is ignored by ParseFloat.
>+template <int base>
>+ParsedFloat ParseFloat(const char* begin, const char* end,
>+                       absl::chars_format format_flags);
>+
>+extern template ParsedFloat ParseFloat<10>(const char* begin, const char* end,
>+                                           absl::chars_format format_flags);
>+extern template ParsedFloat ParseFloat<16>(const char* begin, const char* end,
>+                                           absl::chars_format format_flags);
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+#endif  // ABSL_STRINGS_INTERNAL_CHARCONV_PARSE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1ff86004973a82fcd70e301c808a94349ed3bbb1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/charconv_parse_test.cc
>@@ -0,0 +1,357 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/charconv_parse.h"
>+
>+#include <string>
>+#include <utility>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/str_cat.h"
>+
>+using absl::chars_format;
>+using absl::strings_internal::FloatType;
>+using absl::strings_internal::ParsedFloat;
>+using absl::strings_internal::ParseFloat;
>+
>+namespace {
>+
>+// Check that a given std::string input is parsed to the expected mantissa and
>+// exponent.
>+//
>+// Input std::string `s` must contain a '$' character.  It marks the end of the
>+// characters that should be consumed by the match.  It is stripped from the
>+// input to ParseFloat.
>+//
>+// If input std::string `s` contains '[' and ']' characters, these mark the region
>+// of characters that should be marked as the "subrange".  For NaNs, this is
>+// the location of the extended NaN std::string.  For numbers, this is the location
>+// of the full, over-large mantissa.
>+template <int base>
>+void ExpectParsedFloat(std::string s, absl::chars_format format_flags,
>+                       FloatType expected_type, uint64_t expected_mantissa,
>+                       int expected_exponent,
>+                       int expected_literal_exponent = -999) {
>+  SCOPED_TRACE(s);
>+
>+  int begin_subrange = -1;
>+  int end_subrange = -1;
>+  // If s contains '[' and ']', then strip these characters and set the subrange
>+  // indices appropriately.
>+  std::string::size_type open_bracket_pos = s.find('[');
>+  if (open_bracket_pos != std::string::npos) {
>+    begin_subrange = static_cast<int>(open_bracket_pos);
>+    s.replace(open_bracket_pos, 1, "");
>+    std::string::size_type close_bracket_pos = s.find(']');
>+    ABSL_RAW_CHECK(close_bracket_pos != absl::string_view::npos,
>+                   "Test input contains [ without matching ]");
>+    end_subrange = static_cast<int>(close_bracket_pos);
>+    s.replace(close_bracket_pos, 1, "");
>+  }
>+  const std::string::size_type expected_characters_matched = s.find('$');
>+  ABSL_RAW_CHECK(expected_characters_matched != std::string::npos,
>+                 "Input std::string must contain $");
>+  s.replace(expected_characters_matched, 1, "");
>+
>+  ParsedFloat parsed =
>+      ParseFloat<base>(s.data(), s.data() + s.size(), format_flags);
>+
>+  EXPECT_NE(parsed.end, nullptr);
>+  if (parsed.end == nullptr) {
>+    return;  // The following tests are not useful if we fully failed to parse
>+  }
>+  EXPECT_EQ(parsed.type, expected_type);
>+  if (begin_subrange == -1) {
>+    EXPECT_EQ(parsed.subrange_begin, nullptr);
>+    EXPECT_EQ(parsed.subrange_end, nullptr);
>+  } else {
>+    EXPECT_EQ(parsed.subrange_begin, s.data() + begin_subrange);
>+    EXPECT_EQ(parsed.subrange_end, s.data() + end_subrange);
>+  }
>+  if (parsed.type == FloatType::kNumber) {
>+    EXPECT_EQ(parsed.mantissa, expected_mantissa);
>+    EXPECT_EQ(parsed.exponent, expected_exponent);
>+    if (expected_literal_exponent != -999) {
>+      EXPECT_EQ(parsed.literal_exponent, expected_literal_exponent);
>+    }
>+  }
>+  auto characters_matched = static_cast<int>(parsed.end - s.data());
>+  EXPECT_EQ(characters_matched, expected_characters_matched);
>+}
>+
>+// Check that a given std::string input is parsed to the expected mantissa and
>+// exponent.
>+//
>+// Input std::string `s` must contain a '$' character.  It marks the end of the
>+// characters that were consumed by the match.
>+template <int base>
>+void ExpectNumber(std::string s, absl::chars_format format_flags,
>+                  uint64_t expected_mantissa, int expected_exponent,
>+                  int expected_literal_exponent = -999) {
>+  ExpectParsedFloat<base>(std::move(s), format_flags, FloatType::kNumber,
>+                          expected_mantissa, expected_exponent,
>+                          expected_literal_exponent);
>+}
>+
>+// Check that a given std::string input is parsed to the given special value.
>+//
>+// This tests against both number bases, since infinities and NaNs have
>+// identical representations in both modes.
>+void ExpectSpecial(const std::string& s, absl::chars_format format_flags,
>+                   FloatType type) {
>+  ExpectParsedFloat<10>(s, format_flags, type, 0, 0);
>+  ExpectParsedFloat<16>(s, format_flags, type, 0, 0);
>+}
>+
>+// Check that a given input std::string is not matched by Float.
>+template <int base>
>+void ExpectFailedParse(absl::string_view s, absl::chars_format format_flags) {
>+  ParsedFloat parsed =
>+      ParseFloat<base>(s.data(), s.data() + s.size(), format_flags);
>+  EXPECT_EQ(parsed.end, nullptr);
>+}
>+
>+TEST(ParseFloat, SimpleValue) {
>+  // Test that various forms of floating point numbers all parse correctly.
>+  ExpectNumber<10>("1.23456789e5$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e+5$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789E5$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e05$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123.456789e3$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("0.000123456789e9$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123456.789$", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123456789e-3$", chars_format::general, 123456789, -3);
>+
>+  ExpectNumber<16>("1.234abcdefp28$", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1.234abcdefp+28$", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1.234ABCDEFp28$", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1.234AbCdEfP0028$", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("123.4abcdefp20$", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("0.0001234abcdefp44$", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("1234abcd.ef$", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1234abcdefp-8$", chars_format::general, 0x1234abcdef, -8);
>+
>+  // ExpectNumber does not attempt to drop trailing zeroes.
>+  ExpectNumber<10>("0001.2345678900e005$", chars_format::general, 12345678900,
>+                   -5);
>+  ExpectNumber<16>("0001.234abcdef000p28$", chars_format::general,
>+                   0x1234abcdef000, -20);
>+
>+  // Ensure non-matching characters after a number are ignored, even when they
>+  // look like potentially matching characters.
>+  ExpectNumber<10>("1.23456789e5$   ", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e5$e5e5", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e5$.25", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e5$-", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("1.23456789e5$PUPPERS!!!", chars_format::general, 123456789,
>+                   -3);
>+  ExpectNumber<10>("123456.789$efghij", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123456.789$e", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123456.789$p5", chars_format::general, 123456789, -3);
>+  ExpectNumber<10>("123456.789$.10", chars_format::general, 123456789, -3);
>+
>+  ExpectNumber<16>("1.234abcdefp28$   ", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("1.234abcdefp28$p28", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("1.234abcdefp28$.125", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("1.234abcdefp28$-", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1.234abcdefp28$KITTEHS!!!", chars_format::general,
>+                   0x1234abcdef, -8);
>+  ExpectNumber<16>("1234abcd.ef$ghijk", chars_format::general, 0x1234abcdef,
>+                   -8);
>+  ExpectNumber<16>("1234abcd.ef$p", chars_format::general, 0x1234abcdef, -8);
>+  ExpectNumber<16>("1234abcd.ef$.10", chars_format::general, 0x1234abcdef, -8);
>+
>+  // Ensure we can read a full resolution mantissa without overflow.
>+  ExpectNumber<10>("9999999999999999999$", chars_format::general,
>+                   9999999999999999999u, 0);
>+  ExpectNumber<16>("fffffffffffffff$", chars_format::general,
>+                   0xfffffffffffffffu, 0);
>+
>+  // Check that zero is consistently read.
>+  ExpectNumber<10>("0$", chars_format::general, 0, 0);
>+  ExpectNumber<16>("0$", chars_format::general, 0, 0);
>+  ExpectNumber<10>("000000000000000000000000000000000000000$",
>+                   chars_format::general, 0, 0);
>+  ExpectNumber<16>("000000000000000000000000000000000000000$",
>+                   chars_format::general, 0, 0);
>+  ExpectNumber<10>("0000000000000000000000.000000000000000000$",
>+                   chars_format::general, 0, 0);
>+  ExpectNumber<16>("0000000000000000000000.000000000000000000$",
>+                   chars_format::general, 0, 0);
>+  ExpectNumber<10>("0.00000000000000000000000000000000e123456$",
>+                   chars_format::general, 0, 0);
>+  ExpectNumber<16>("0.00000000000000000000000000000000p123456$",
>+                   chars_format::general, 0, 0);
>+}
>+
>+TEST(ParseFloat, LargeDecimalMantissa) {
>+  // After 19 significant decimal digits in the mantissa, ParsedFloat will
>+  // truncate additional digits.  We need to test that:
>+  //   1) the truncation to 19 digits happens
>+  //   2) the returned exponent reflects the dropped significant digits
>+  //   3) a correct literal_exponent is set
>+  //
>+  // If and only if a significant digit is found after 19 digits, then the
>+  // entirety of the mantissa in case the exact value is needed to make a
>+  // rounding decision.  The [ and ] characters below denote where such a
>+  // subregion was marked by by ParseFloat.  They are not part of the input.
>+
>+  // Mark a capture group only if a dropped digit is significant (nonzero).
>+  ExpectNumber<10>("100000000000000000000000000$", chars_format::general,
>+                   1000000000000000000,
>+                   /* adjusted exponent */ 8);
>+
>+  ExpectNumber<10>("123456789123456789100000000$", chars_format::general,
>+                   1234567891234567891,
>+                   /* adjusted exponent */ 8);
>+
>+  ExpectNumber<10>("[123456789123456789123456789]$", chars_format::general,
>+                   1234567891234567891,
>+                   /* adjusted exponent */ 8,
>+                   /* literal exponent */ 0);
>+
>+  ExpectNumber<10>("[123456789123456789100000009]$", chars_format::general,
>+                   1234567891234567891,
>+                   /* adjusted exponent */ 8,
>+                   /* literal exponent */ 0);
>+
>+  ExpectNumber<10>("[123456789123456789120000000]$", chars_format::general,
>+                   1234567891234567891,
>+                   /* adjusted exponent */ 8,
>+                   /* literal exponent */ 0);
>+
>+  // Leading zeroes should not count towards the 19 significant digit limit
>+  ExpectNumber<10>("[00000000123456789123456789123456789]$",
>+                   chars_format::general, 1234567891234567891,
>+                   /* adjusted exponent */ 8,
>+                   /* literal exponent */ 0);
>+
>+  ExpectNumber<10>("00000000123456789123456789100000000$",
>+                   chars_format::general, 1234567891234567891,
>+                   /* adjusted exponent */ 8);
>+
>+  // Truncated digits after the decimal point should not cause a further
>+  // exponent adjustment.
>+  ExpectNumber<10>("1.234567891234567891e123$", chars_format::general,
>+                   1234567891234567891, 105);
>+  ExpectNumber<10>("[1.23456789123456789123456789]e123$", chars_format::general,
>+                   1234567891234567891,
>+                   /* adjusted exponent */ 105,
>+                   /* literal exponent */ 123);
>+
>+  // Ensure we truncate, and not round.  (The from_chars algorithm we use
>+  // depends on our guess missing low, if it misses, so we need the rounding
>+  // error to be downward.)
>+  ExpectNumber<10>("[1999999999999999999999]$", chars_format::general,
>+                   1999999999999999999,
>+                   /* adjusted exponent */ 3,
>+                   /* literal exponent */ 0);
>+}
>+
>+TEST(ParseFloat, LargeHexadecimalMantissa) {
>+  // After 15 significant hex digits in the mantissa, ParsedFloat will treat
>+  // additional digits as sticky,  We need to test that:
>+  //   1) The truncation to 15 digits happens
>+  //   2) The returned exponent reflects the dropped significant digits
>+  //   3) If a nonzero digit is dropped, the low bit of mantissa is set.
>+
>+  ExpectNumber<16>("123456789abcdef123456789abcdef$", chars_format::general,
>+                   0x123456789abcdef, 60);
>+
>+  // Leading zeroes should not count towards the 15 significant digit limit
>+  ExpectNumber<16>("000000123456789abcdef123456789abcdef$",
>+                   chars_format::general, 0x123456789abcdef, 60);
>+
>+  // Truncated digits after the radix point should not cause a further
>+  // exponent adjustment.
>+  ExpectNumber<16>("1.23456789abcdefp100$", chars_format::general,
>+                   0x123456789abcdef, 44);
>+  ExpectNumber<16>("1.23456789abcdef123456789abcdefp100$",
>+                   chars_format::general, 0x123456789abcdef, 44);
>+
>+  // test sticky digit behavior.  The low bit should be set iff any dropped
>+  // digit is nonzero.
>+  ExpectNumber<16>("123456789abcdee123456789abcdee$", chars_format::general,
>+                   0x123456789abcdef, 60);
>+  ExpectNumber<16>("123456789abcdee000000000000001$", chars_format::general,
>+                   0x123456789abcdef, 60);
>+  ExpectNumber<16>("123456789abcdee000000000000000$", chars_format::general,
>+                   0x123456789abcdee, 60);
>+}
>+
>+TEST(ParseFloat, ScientificVsFixed) {
>+  // In fixed mode, an exponent is never matched (but the remainder of the
>+  // number will be matched.)
>+  ExpectNumber<10>("1.23456789$e5", chars_format::fixed, 123456789, -8);
>+  ExpectNumber<10>("123456.789$", chars_format::fixed, 123456789, -3);
>+  ExpectNumber<16>("1.234abcdef$p28", chars_format::fixed, 0x1234abcdef, -36);
>+  ExpectNumber<16>("1234abcd.ef$", chars_format::fixed, 0x1234abcdef, -8);
>+
>+  // In scientific mode, numbers don't match *unless* they have an exponent.
>+  ExpectNumber<10>("1.23456789e5$", chars_format::scientific, 123456789, -3);
>+  ExpectFailedParse<10>("-123456.789$", chars_format::scientific);
>+  ExpectNumber<16>("1.234abcdefp28$", chars_format::scientific, 0x1234abcdef,
>+                   -8);
>+  ExpectFailedParse<16>("1234abcd.ef$", chars_format::scientific);
>+}
>+
>+TEST(ParseFloat, Infinity) {
>+  ExpectFailedParse<10>("in", chars_format::general);
>+  ExpectFailedParse<16>("in", chars_format::general);
>+  ExpectFailedParse<10>("inx", chars_format::general);
>+  ExpectFailedParse<16>("inx", chars_format::general);
>+  ExpectSpecial("inf$", chars_format::general, FloatType::kInfinity);
>+  ExpectSpecial("Inf$", chars_format::general, FloatType::kInfinity);
>+  ExpectSpecial("INF$", chars_format::general, FloatType::kInfinity);
>+  ExpectSpecial("inf$inite", chars_format::general, FloatType::kInfinity);
>+  ExpectSpecial("iNfInItY$", chars_format::general, FloatType::kInfinity);
>+  ExpectSpecial("infinity$!!!", chars_format::general, FloatType::kInfinity);
>+}
>+
>+TEST(ParseFloat, NaN) {
>+  ExpectFailedParse<10>("na", chars_format::general);
>+  ExpectFailedParse<16>("na", chars_format::general);
>+  ExpectFailedParse<10>("nah", chars_format::general);
>+  ExpectFailedParse<16>("nah", chars_format::general);
>+  ExpectSpecial("nan$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("NaN$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("nAn$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("NAN$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("NaN$aNaNaNaNaBatman!", chars_format::general, FloatType::kNan);
>+
>+  // A parenthesized sequence of the characters [a-zA-Z0-9_] is allowed to
>+  // appear after an NaN.  Check that this is allowed, and that the correct
>+  // characters are grouped.
>+  //
>+  // (The characters [ and ] in the pattern below delimit the expected matched
>+  // subgroup; they are not part of the input passed to ParseFloat.)
>+  ExpectSpecial("nan([0xabcdef])$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("nan([0xabcdef])$...", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("nan([0xabcdef])$)...", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("nan([])$", chars_format::general, FloatType::kNan);
>+  ExpectSpecial("nan([aAzZ09_])$", chars_format::general, FloatType::kNan);
>+  // If the subgroup contains illegal characters, don't match it at all.
>+  ExpectSpecial("nan$(bad-char)", chars_format::general, FloatType::kNan);
>+  // Also cope with a missing close paren.
>+  ExpectSpecial("nan$(0xabcdef", chars_format::general, FloatType::kNan);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/escaping_test_common.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/escaping_test_common.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc41f4312c7c1306e79100a911b347a99c0b24c1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/escaping_test_common.h
>@@ -0,0 +1,131 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This test contains common things needed by both escaping_test.cc and
>+// escaping_benchmark.cc.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_
>+#define ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_
>+
>+#include <array>
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+struct base64_testcase {
>+  absl::string_view plaintext;
>+  absl::string_view cyphertext;
>+};
>+
>+inline const std::array<base64_testcase, 5>& base64_strings() {
>+  static const std::array<base64_testcase, 5> testcase{{
>+      // Some google quotes
>+      // Cyphertext created with "uuencode (GNU sharutils) 4.6.3"
>+      // (Note that we're testing the websafe encoding, though, so if
>+      // you add messages, be sure to run "tr -- '+/' '-_'" on the output)
>+      { "I was always good at math and science, and I never realized "
>+        "that was unusual or somehow undesirable. So one of the things "
>+        "I care a lot about is helping to remove that stigma, "
>+        "to show girls that you can be feminine, you can like the things "
>+        "that girls like, but you can also be really good at technology. "
>+        "You can be really good at building things."
>+        " - Marissa Meyer, Newsweek, 2010-12-22" "\n",
>+
>+        "SSB3YXMgYWx3YXlzIGdvb2QgYXQgbWF0aCBhbmQgc2NpZW5jZSwgYW5kIEkg"
>+        "bmV2ZXIgcmVhbGl6ZWQgdGhhdCB3YXMgdW51c3VhbCBvciBzb21laG93IHVu"
>+        "ZGVzaXJhYmxlLiBTbyBvbmUgb2YgdGhlIHRoaW5ncyBJIGNhcmUgYSBsb3Qg"
>+        "YWJvdXQgaXMgaGVscGluZyB0byByZW1vdmUgdGhhdCBzdGlnbWEsIHRvIHNo"
>+        "b3cgZ2lybHMgdGhhdCB5b3UgY2FuIGJlIGZlbWluaW5lLCB5b3UgY2FuIGxp"
>+        "a2UgdGhlIHRoaW5ncyB0aGF0IGdpcmxzIGxpa2UsIGJ1dCB5b3UgY2FuIGFs"
>+        "c28gYmUgcmVhbGx5IGdvb2QgYXQgdGVjaG5vbG9neS4gWW91IGNhbiBiZSBy"
>+        "ZWFsbHkgZ29vZCBhdCBidWlsZGluZyB0aGluZ3MuIC0gTWFyaXNzYSBNZXll"
>+        "ciwgTmV3c3dlZWssIDIwMTAtMTItMjIK" },
>+
>+      { "Typical first year for a new cluster: "
>+        "~0.5 overheating "
>+        "~1 PDU failure "
>+        "~1 rack-move "
>+        "~1 network rewiring "
>+        "~20 rack failures "
>+        "~5 racks go wonky "
>+        "~8 network maintenances "
>+        "~12 router reloads "
>+        "~3 router failures "
>+        "~dozens of minor 30-second blips for dns "
>+        "~1000 individual machine failures "
>+        "~thousands of hard drive failures "
>+        "slow disks, bad memory, misconfigured machines, flaky machines, etc."
>+        " - Jeff Dean, The Joys of Real Hardware" "\n",
>+
>+        "VHlwaWNhbCBmaXJzdCB5ZWFyIGZvciBhIG5ldyBjbHVzdGVyOiB-MC41IG92"
>+        "ZXJoZWF0aW5nIH4xIFBEVSBmYWlsdXJlIH4xIHJhY2stbW92ZSB-MSBuZXR3"
>+        "b3JrIHJld2lyaW5nIH4yMCByYWNrIGZhaWx1cmVzIH41IHJhY2tzIGdvIHdv"
>+        "bmt5IH44IG5ldHdvcmsgbWFpbnRlbmFuY2VzIH4xMiByb3V0ZXIgcmVsb2Fk"
>+        "cyB-MyByb3V0ZXIgZmFpbHVyZXMgfmRvemVucyBvZiBtaW5vciAzMC1zZWNv"
>+        "bmQgYmxpcHMgZm9yIGRucyB-MTAwMCBpbmRpdmlkdWFsIG1hY2hpbmUgZmFp"
>+        "bHVyZXMgfnRob3VzYW5kcyBvZiBoYXJkIGRyaXZlIGZhaWx1cmVzIHNsb3cg"
>+        "ZGlza3MsIGJhZCBtZW1vcnksIG1pc2NvbmZpZ3VyZWQgbWFjaGluZXMsIGZs"
>+        "YWt5IG1hY2hpbmVzLCBldGMuIC0gSmVmZiBEZWFuLCBUaGUgSm95cyBvZiBS"
>+        "ZWFsIEhhcmR3YXJlCg" },
>+
>+      { "I'm the head of the webspam team at Google.  "
>+        "That means that if you type your name into Google and get porn back, "
>+        "it's my fault. Unless you're a porn star, in which case porn is a "
>+        "completely reasonable response."
>+        " - Matt Cutts, Google Plus" "\n",
>+
>+        "SSdtIHRoZSBoZWFkIG9mIHRoZSB3ZWJzcGFtIHRlYW0gYXQgR29vZ2xlLiAg"
>+        "VGhhdCBtZWFucyB0aGF0IGlmIHlvdSB0eXBlIHlvdXIgbmFtZSBpbnRvIEdv"
>+        "b2dsZSBhbmQgZ2V0IHBvcm4gYmFjaywgaXQncyBteSBmYXVsdC4gVW5sZXNz"
>+        "IHlvdSdyZSBhIHBvcm4gc3RhciwgaW4gd2hpY2ggY2FzZSBwb3JuIGlzIGEg"
>+        "Y29tcGxldGVseSByZWFzb25hYmxlIHJlc3BvbnNlLiAtIE1hdHQgQ3V0dHMs"
>+        "IEdvb2dsZSBQbHVzCg" },
>+
>+      { "It will still be a long time before machines approach human "
>+        "intelligence. "
>+        "But luckily, machines don't actually have to be intelligent; "
>+        "they just have to fake it. Access to a wealth of information, "
>+        "combined with a rudimentary decision-making capacity, "
>+        "can often be almost as useful. Of course, the results are better yet "
>+        "when coupled with intelligence. A reference librarian with access to "
>+        "a good search engine is a formidable tool."
>+        " - Craig Silverstein, Siemens Pictures of the Future, Spring 2004"
>+        "\n",
>+
>+        "SXQgd2lsbCBzdGlsbCBiZSBhIGxvbmcgdGltZSBiZWZvcmUgbWFjaGluZXMg"
>+        "YXBwcm9hY2ggaHVtYW4gaW50ZWxsaWdlbmNlLiBCdXQgbHVja2lseSwgbWFj"
>+        "aGluZXMgZG9uJ3QgYWN0dWFsbHkgaGF2ZSB0byBiZSBpbnRlbGxpZ2VudDsg"
>+        "dGhleSBqdXN0IGhhdmUgdG8gZmFrZSBpdC4gQWNjZXNzIHRvIGEgd2VhbHRo"
>+        "IG9mIGluZm9ybWF0aW9uLCBjb21iaW5lZCB3aXRoIGEgcnVkaW1lbnRhcnkg"
>+        "ZGVjaXNpb24tbWFraW5nIGNhcGFjaXR5LCBjYW4gb2Z0ZW4gYmUgYWxtb3N0"
>+        "IGFzIHVzZWZ1bC4gT2YgY291cnNlLCB0aGUgcmVzdWx0cyBhcmUgYmV0dGVy"
>+        "IHlldCB3aGVuIGNvdXBsZWQgd2l0aCBpbnRlbGxpZ2VuY2UuIEEgcmVmZXJl"
>+        "bmNlIGxpYnJhcmlhbiB3aXRoIGFjY2VzcyB0byBhIGdvb2Qgc2VhcmNoIGVu"
>+        "Z2luZSBpcyBhIGZvcm1pZGFibGUgdG9vbC4gLSBDcmFpZyBTaWx2ZXJzdGVp"
>+        "biwgU2llbWVucyBQaWN0dXJlcyBvZiB0aGUgRnV0dXJlLCBTcHJpbmcgMjAw"
>+        "NAo" },
>+
>+      // Degenerate edge case
>+      { "",
>+        "" },
>+  }};
>+
>+  return testcase;
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_ESCAPING_TEST_COMMON_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a0de70dffdbdc0273a20c81781b94faa87233351
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.cc
>@@ -0,0 +1,110 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+#include <cstdlib>
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+int memcasecmp(const char* s1, const char* s2, size_t len) {
>+  const unsigned char* us1 = reinterpret_cast<const unsigned char*>(s1);
>+  const unsigned char* us2 = reinterpret_cast<const unsigned char*>(s2);
>+
>+  for (size_t i = 0; i < len; i++) {
>+    const int diff =
>+        int{static_cast<unsigned char>(absl::ascii_tolower(us1[i]))} -
>+        int{static_cast<unsigned char>(absl::ascii_tolower(us2[i]))};
>+    if (diff != 0) return diff;
>+  }
>+  return 0;
>+}
>+
>+char* memdup(const char* s, size_t slen) {
>+  void* copy;
>+  if ((copy = malloc(slen)) == nullptr) return nullptr;
>+  memcpy(copy, s, slen);
>+  return reinterpret_cast<char*>(copy);
>+}
>+
>+char* memrchr(const char* s, int c, size_t slen) {
>+  for (const char* e = s + slen - 1; e >= s; e--) {
>+    if (*e == c) return const_cast<char*>(e);
>+  }
>+  return nullptr;
>+}
>+
>+size_t memspn(const char* s, size_t slen, const char* accept) {
>+  const char* p = s;
>+  const char* spanp;
>+  char c, sc;
>+
>+cont:
>+  c = *p++;
>+  if (slen-- == 0) return p - 1 - s;
>+  for (spanp = accept; (sc = *spanp++) != '\0';)
>+    if (sc == c) goto cont;
>+  return p - 1 - s;
>+}
>+
>+size_t memcspn(const char* s, size_t slen, const char* reject) {
>+  const char* p = s;
>+  const char* spanp;
>+  char c, sc;
>+
>+  while (slen-- != 0) {
>+    c = *p++;
>+    for (spanp = reject; (sc = *spanp++) != '\0';)
>+      if (sc == c) return p - 1 - s;
>+  }
>+  return p - s;
>+}
>+
>+char* mempbrk(const char* s, size_t slen, const char* accept) {
>+  const char* scanp;
>+  int sc;
>+
>+  for (; slen; ++s, --slen) {
>+    for (scanp = accept; (sc = *scanp++) != '\0';)
>+      if (sc == *s) return const_cast<char*>(s);
>+  }
>+  return nullptr;
>+}
>+
>+// This is significantly faster for case-sensitive matches with very
>+// few possible matches.  See unit test for benchmarks.
>+const char* memmatch(const char* phaystack, size_t haylen, const char* pneedle,
>+                     size_t neelen) {
>+  if (0 == neelen) {
>+    return phaystack;  // even if haylen is 0
>+  }
>+  if (haylen < neelen) return nullptr;
>+
>+  const char* match;
>+  const char* hayend = phaystack + haylen - neelen + 1;
>+  // A static cast is used here to work around the fact that memchr returns
>+  // a void* on Posix-compliant systems and const void* on Windows.
>+  while ((match = static_cast<const char*>(
>+              memchr(phaystack, pneedle[0], hayend - phaystack)))) {
>+    if (memcmp(match, pneedle, neelen) == 0)
>+      return match;
>+    else
>+      phaystack = match + 1;
>+  }
>+  return nullptr;
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a6f1c69138e3872f127e70aeb26e159a82925a0c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil.h
>@@ -0,0 +1,146 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// These routines provide mem versions of standard C std::string routines,
>+// such as strpbrk.  They function exactly the same as the str versions,
>+// so if you wonder what they are, replace the word "mem" by
>+// "str" and check out the man page.  I could return void*, as the
>+// strutil.h mem*() routines tend to do, but I return char* instead
>+// since this is by far the most common way these functions are called.
>+//
>+// The difference between the mem and str versions is the mem version
>+// takes a pointer and a length, rather than a '\0'-terminated std::string.
>+// The memcase* routines defined here assume the locale is "C"
>+// (they use absl::ascii_tolower instead of tolower).
>+//
>+// These routines are based on the BSD library.
>+//
>+// Here's a list of routines from std::string.h, and their mem analogues.
>+// Functions in lowercase are defined in std::string.h; those in UPPERCASE
>+// are defined here:
>+//
>+// strlen                  --
>+// strcat strncat          MEMCAT
>+// strcpy strncpy          memcpy
>+// --                      memccpy   (very cool function, btw)
>+// --                      memmove
>+// --                      memset
>+// strcmp strncmp          memcmp
>+// strcasecmp strncasecmp  MEMCASECMP
>+// strchr                  memchr
>+// strcoll                 --
>+// strxfrm                 --
>+// strdup strndup          MEMDUP
>+// strrchr                 MEMRCHR
>+// strspn                  MEMSPN
>+// strcspn                 MEMCSPN
>+// strpbrk                 MEMPBRK
>+// strstr                  MEMSTR MEMMEM
>+// (g)strcasestr           MEMCASESTR MEMCASEMEM
>+// strtok                  --
>+// strprefix               MEMPREFIX      (strprefix is from strutil.h)
>+// strcaseprefix           MEMCASEPREFIX  (strcaseprefix is from strutil.h)
>+// strsuffix               MEMSUFFIX      (strsuffix is from strutil.h)
>+// strcasesuffix           MEMCASESUFFIX  (strcasesuffix is from strutil.h)
>+// --                      MEMIS
>+// --                      MEMCASEIS
>+// strcount                MEMCOUNT       (strcount is from strutil.h)
>+
>+#ifndef ABSL_STRINGS_INTERNAL_MEMUTIL_H_
>+#define ABSL_STRINGS_INTERNAL_MEMUTIL_H_
>+
>+#include <cstddef>
>+#include <cstring>
>+
>+#include "absl/base/port.h"  // disable some warnings on Windows
>+#include "absl/strings/ascii.h"  // for absl::ascii_tolower
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+inline char* memcat(char* dest, size_t destlen, const char* src,
>+                    size_t srclen) {
>+  return reinterpret_cast<char*>(memcpy(dest + destlen, src, srclen));
>+}
>+
>+int memcasecmp(const char* s1, const char* s2, size_t len);
>+char* memdup(const char* s, size_t slen);
>+char* memrchr(const char* s, int c, size_t slen);
>+size_t memspn(const char* s, size_t slen, const char* accept);
>+size_t memcspn(const char* s, size_t slen, const char* reject);
>+char* mempbrk(const char* s, size_t slen, const char* accept);
>+
>+// This is for internal use only.  Don't call this directly
>+template <bool case_sensitive>
>+const char* int_memmatch(const char* haystack, size_t haylen,
>+                         const char* needle, size_t neelen) {
>+  if (0 == neelen) {
>+    return haystack;  // even if haylen is 0
>+  }
>+  const char* hayend = haystack + haylen;
>+  const char* needlestart = needle;
>+  const char* needleend = needlestart + neelen;
>+
>+  for (; haystack < hayend; ++haystack) {
>+    char hay = case_sensitive
>+                   ? *haystack
>+                   : absl::ascii_tolower(static_cast<unsigned char>(*haystack));
>+    char nee = case_sensitive
>+                   ? *needle
>+                   : absl::ascii_tolower(static_cast<unsigned char>(*needle));
>+    if (hay == nee) {
>+      if (++needle == needleend) {
>+        return haystack + 1 - neelen;
>+      }
>+    } else if (needle != needlestart) {
>+      // must back up haystack in case a prefix matched (find "aab" in "aaab")
>+      haystack -= needle - needlestart;  // for loop will advance one more
>+      needle = needlestart;
>+    }
>+  }
>+  return nullptr;
>+}
>+
>+// These are the guys you can call directly
>+inline const char* memstr(const char* phaystack, size_t haylen,
>+                          const char* pneedle) {
>+  return int_memmatch<true>(phaystack, haylen, pneedle, strlen(pneedle));
>+}
>+
>+inline const char* memcasestr(const char* phaystack, size_t haylen,
>+                              const char* pneedle) {
>+  return int_memmatch<false>(phaystack, haylen, pneedle, strlen(pneedle));
>+}
>+
>+inline const char* memmem(const char* phaystack, size_t haylen,
>+                          const char* pneedle, size_t needlelen) {
>+  return int_memmatch<true>(phaystack, haylen, pneedle, needlelen);
>+}
>+
>+inline const char* memcasemem(const char* phaystack, size_t haylen,
>+                              const char* pneedle, size_t needlelen) {
>+  return int_memmatch<false>(phaystack, haylen, pneedle, needlelen);
>+}
>+
>+// This is significantly faster for case-sensitive matches with very
>+// few possible matches.  See unit test for benchmarks.
>+const char* memmatch(const char* phaystack, size_t haylen, const char* pneedle,
>+                     size_t neelen);
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_MEMUTIL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..77915adb958ee58b5f5c5825cd87a4c97144da2d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_benchmark.cc
>@@ -0,0 +1,323 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+#include <algorithm>
>+#include <cstdlib>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/strings/ascii.h"
>+
>+// We fill the haystack with aaaaaaaaaaaaaaaaaa...aaaab.
>+// That gives us:
>+// - an easy search: 'b'
>+// - a medium search: 'ab'.  That means every letter is a possible match.
>+// - a pathological search: 'aaaaaa.......aaaaab' (half as many a's as haytack)
>+// We benchmark case-sensitive and case-insensitive versions of
>+// three memmem implementations:
>+// - memmem() from memutil.h
>+// - search() from STL
>+// - memmatch(), a custom implementation using memchr and memcmp.
>+// Here are sample results:
>+//
>+// Run on (12 X 3800 MHz CPU s)
>+// CPU Caches:
>+//   L1 Data 32K (x6)
>+//   L1 Instruction 32K (x6)
>+//   L2 Unified 256K (x6)
>+//   L3 Unified 15360K (x1)
>+// ----------------------------------------------------------------
>+// Benchmark                           Time          CPU Iterations
>+// ----------------------------------------------------------------
>+// BM_Memmem                        3583 ns      3582 ns     196469  2.59966GB/s
>+// BM_MemmemMedium                 13743 ns     13742 ns      50901  693.986MB/s
>+// BM_MemmemPathological        13695030 ns  13693977 ns         51  713.133kB/s
>+// BM_Memcasemem                    3299 ns      3299 ns     212942  2.82309GB/s
>+// BM_MemcasememMedium             16407 ns     16406 ns      42170  581.309MB/s
>+// BM_MemcasememPathological    17267745 ns  17266030 ns         41  565.598kB/s
>+// BM_Search                        1610 ns      1609 ns     431321  5.78672GB/s
>+// BM_SearchMedium                 11111 ns     11110 ns      63001  858.414MB/s
>+// BM_SearchPathological        12117390 ns  12116397 ns         58  805.984kB/s
>+// BM_Searchcase                    3081 ns      3081 ns     229949  3.02313GB/s
>+// BM_SearchcaseMedium             16003 ns     16001 ns      44170  595.998MB/s
>+// BM_SearchcasePathological    15823413 ns  15821909 ns         44  617.222kB/s
>+// BM_Memmatch                       197 ns       197 ns    3584225  47.2951GB/s
>+// BM_MemmatchMedium               52333 ns     52329 ns      13280  182.244MB/s
>+// BM_MemmatchPathological        659799 ns    659727 ns       1058  14.4556MB/s
>+// BM_Memcasematch                  5460 ns      5460 ns     127606  1.70586GB/s
>+// BM_MemcasematchMedium           32861 ns     32857 ns      21258  290.248MB/s
>+// BM_MemcasematchPathological  15154243 ns  15153089 ns         46  644.464kB/s
>+// BM_MemmemStartup                    5 ns         5 ns  150821500
>+// BM_SearchStartup                    5 ns         5 ns  150644203
>+// BM_MemmatchStartup                  7 ns         7 ns   97068802
>+//
>+// Conclusions:
>+//
>+// The following recommendations are based on the sample results above. However,
>+// we have found that the performance of STL search can vary significantly
>+// depending on compiler and standard library implementation. We recommend you
>+// run the benchmarks for yourself on relevant platforms.
>+//
>+// If you need case-insensitive, STL search is slightly better than memmem for
>+// all cases.
>+//
>+// Case-sensitive is more subtle:
>+// Custom memmatch is _very_ fast at scanning, so if you have very few possible
>+// matches in your haystack, that's the way to go. Performance drops
>+// significantly with more matches.
>+//
>+// STL search is slightly faster than memmem in the medium and pathological
>+// benchmarks. However, the performance of memmem is currently more dependable
>+// across platforms and build configurations.
>+
>+namespace {
>+
>+constexpr int kHaystackSize = 10000;
>+constexpr int64_t kHaystackSize64 = kHaystackSize;
>+const char* MakeHaystack() {
>+  char* haystack = new char[kHaystackSize];
>+  for (int i = 0; i < kHaystackSize - 1; ++i) haystack[i] = 'a';
>+  haystack[kHaystackSize - 1] = 'b';
>+  return haystack;
>+}
>+const char* const kHaystack = MakeHaystack();
>+
>+void BM_Memmem(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memmem(kHaystack, kHaystackSize, "b", 1));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Memmem);
>+
>+void BM_MemmemMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memmem(kHaystack, kHaystackSize, "ab", 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemmemMedium);
>+
>+void BM_MemmemPathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::strings_internal::memmem(
>+        kHaystack, kHaystackSize, kHaystack + kHaystackSize / 2,
>+        kHaystackSize - kHaystackSize / 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemmemPathological);
>+
>+void BM_Memcasemem(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memcasemem(kHaystack, kHaystackSize, "b", 1));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Memcasemem);
>+
>+void BM_MemcasememMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memcasemem(kHaystack, kHaystackSize, "ab", 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemcasememMedium);
>+
>+void BM_MemcasememPathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::strings_internal::memcasemem(
>+        kHaystack, kHaystackSize, kHaystack + kHaystackSize / 2,
>+        kHaystackSize - kHaystackSize / 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemcasememPathological);
>+
>+bool case_eq(const char a, const char b) {
>+  return absl::ascii_tolower(a) == absl::ascii_tolower(b);
>+}
>+
>+void BM_Search(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize - 1,
>+                                         kHaystack + kHaystackSize));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Search);
>+
>+void BM_SearchMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize - 2,
>+                                         kHaystack + kHaystackSize));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_SearchMedium);
>+
>+void BM_SearchPathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize / 2,
>+                                         kHaystack + kHaystackSize));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_SearchPathological);
>+
>+void BM_Searchcase(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize - 1,
>+                                         kHaystack + kHaystackSize, case_eq));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Searchcase);
>+
>+void BM_SearchcaseMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize - 2,
>+                                         kHaystack + kHaystackSize, case_eq));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_SearchcaseMedium);
>+
>+void BM_SearchcasePathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(std::search(kHaystack, kHaystack + kHaystackSize,
>+                                         kHaystack + kHaystackSize / 2,
>+                                         kHaystack + kHaystackSize, case_eq));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_SearchcasePathological);
>+
>+char* memcasechr(const char* s, int c, size_t slen) {
>+  c = absl::ascii_tolower(c);
>+  for (; slen; ++s, --slen) {
>+    if (absl::ascii_tolower(*s) == c) return const_cast<char*>(s);
>+  }
>+  return nullptr;
>+}
>+
>+const char* memcasematch(const char* phaystack, size_t haylen,
>+                         const char* pneedle, size_t neelen) {
>+  if (0 == neelen) {
>+    return phaystack;  // even if haylen is 0
>+  }
>+  if (haylen < neelen) return nullptr;
>+
>+  const char* match;
>+  const char* hayend = phaystack + haylen - neelen + 1;
>+  while ((match = static_cast<char*>(
>+              memcasechr(phaystack, pneedle[0], hayend - phaystack)))) {
>+    if (absl::strings_internal::memcasecmp(match, pneedle, neelen) == 0)
>+      return match;
>+    else
>+      phaystack = match + 1;
>+  }
>+  return nullptr;
>+}
>+
>+void BM_Memmatch(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memmatch(kHaystack, kHaystackSize, "b", 1));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Memmatch);
>+
>+void BM_MemmatchMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::strings_internal::memmatch(kHaystack, kHaystackSize, "ab", 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemmatchMedium);
>+
>+void BM_MemmatchPathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::strings_internal::memmatch(
>+        kHaystack, kHaystackSize, kHaystack + kHaystackSize / 2,
>+        kHaystackSize - kHaystackSize / 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemmatchPathological);
>+
>+void BM_Memcasematch(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(memcasematch(kHaystack, kHaystackSize, "b", 1));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_Memcasematch);
>+
>+void BM_MemcasematchMedium(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(memcasematch(kHaystack, kHaystackSize, "ab", 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemcasematchMedium);
>+
>+void BM_MemcasematchPathological(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(memcasematch(kHaystack, kHaystackSize,
>+                                          kHaystack + kHaystackSize / 2,
>+                                          kHaystackSize - kHaystackSize / 2));
>+  }
>+  state.SetBytesProcessed(kHaystackSize64 * state.iterations());
>+}
>+BENCHMARK(BM_MemcasematchPathological);
>+
>+void BM_MemmemStartup(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::strings_internal::memmem(
>+        kHaystack + kHaystackSize - 10, 10, kHaystack + kHaystackSize - 1, 1));
>+  }
>+}
>+BENCHMARK(BM_MemmemStartup);
>+
>+void BM_SearchStartup(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        std::search(kHaystack + kHaystackSize - 10, kHaystack + kHaystackSize,
>+                    kHaystack + kHaystackSize - 1, kHaystack + kHaystackSize));
>+  }
>+}
>+BENCHMARK(BM_SearchStartup);
>+
>+void BM_MemmatchStartup(benchmark::State& state) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(absl::strings_internal::memmatch(
>+        kHaystack + kHaystackSize - 10, 10, kHaystack + kHaystackSize - 1, 1));
>+  }
>+}
>+BENCHMARK(BM_MemmatchStartup);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..09424de9a477f4e8a9a3821d9ef052d2f0c2b19d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/memutil_test.cc
>@@ -0,0 +1,179 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit test for memutil.cc
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+#include <cstdlib>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/ascii.h"
>+
>+namespace {
>+
>+static char* memcasechr(const char* s, int c, size_t slen) {
>+  c = absl::ascii_tolower(c);
>+  for (; slen; ++s, --slen) {
>+    if (absl::ascii_tolower(*s) == c) return const_cast<char*>(s);
>+  }
>+  return nullptr;
>+}
>+
>+static const char* memcasematch(const char* phaystack, size_t haylen,
>+                                const char* pneedle, size_t neelen) {
>+  if (0 == neelen) {
>+    return phaystack;  // even if haylen is 0
>+  }
>+  if (haylen < neelen) return nullptr;
>+
>+  const char* match;
>+  const char* hayend = phaystack + haylen - neelen + 1;
>+  while ((match = static_cast<char*>(
>+              memcasechr(phaystack, pneedle[0], hayend - phaystack)))) {
>+    if (absl::strings_internal::memcasecmp(match, pneedle, neelen) == 0)
>+      return match;
>+    else
>+      phaystack = match + 1;
>+  }
>+  return nullptr;
>+}
>+
>+TEST(MemUtilTest, AllTests) {
>+  // check memutil functions
>+  char a[1000];
>+  absl::strings_internal::memcat(a, 0, "hello", sizeof("hello") - 1);
>+  absl::strings_internal::memcat(a, 5, " there", sizeof(" there") - 1);
>+
>+  EXPECT_EQ(absl::strings_internal::memcasecmp(a, "heLLO there",
>+                                               sizeof("hello there") - 1),
>+            0);
>+  EXPECT_EQ(absl::strings_internal::memcasecmp(a, "heLLO therf",
>+                                               sizeof("hello there") - 1),
>+            -1);
>+  EXPECT_EQ(absl::strings_internal::memcasecmp(a, "heLLO therf",
>+                                               sizeof("hello there") - 2),
>+            0);
>+  EXPECT_EQ(absl::strings_internal::memcasecmp(a, "whatever", 0), 0);
>+
>+  char* p = absl::strings_internal::memdup("hello", 5);
>+  free(p);
>+
>+  p = absl::strings_internal::memrchr("hello there", 'e',
>+                                      sizeof("hello there") - 1);
>+  EXPECT_TRUE(p && p[-1] == 'r');
>+  p = absl::strings_internal::memrchr("hello there", 'e',
>+                                      sizeof("hello there") - 2);
>+  EXPECT_TRUE(p && p[-1] == 'h');
>+  p = absl::strings_internal::memrchr("hello there", 'u',
>+                                      sizeof("hello there") - 1);
>+  EXPECT_TRUE(p == nullptr);
>+
>+  int len = absl::strings_internal::memspn("hello there",
>+                                           sizeof("hello there") - 1, "hole");
>+  EXPECT_EQ(len, sizeof("hello") - 1);
>+  len = absl::strings_internal::memspn("hello there", sizeof("hello there") - 1,
>+                                       "u");
>+  EXPECT_EQ(len, 0);
>+  len = absl::strings_internal::memspn("hello there", sizeof("hello there") - 1,
>+                                       "");
>+  EXPECT_EQ(len, 0);
>+  len = absl::strings_internal::memspn("hello there", sizeof("hello there") - 1,
>+                                       "trole h");
>+  EXPECT_EQ(len, sizeof("hello there") - 1);
>+  len = absl::strings_internal::memspn("hello there!",
>+                                       sizeof("hello there!") - 1, "trole h");
>+  EXPECT_EQ(len, sizeof("hello there") - 1);
>+  len = absl::strings_internal::memspn("hello there!",
>+                                       sizeof("hello there!") - 2, "trole h!");
>+  EXPECT_EQ(len, sizeof("hello there!") - 2);
>+
>+  len = absl::strings_internal::memcspn("hello there",
>+                                        sizeof("hello there") - 1, "leho");
>+  EXPECT_EQ(len, 0);
>+  len = absl::strings_internal::memcspn("hello there",
>+                                        sizeof("hello there") - 1, "u");
>+  EXPECT_EQ(len, sizeof("hello there") - 1);
>+  len = absl::strings_internal::memcspn("hello there",
>+                                        sizeof("hello there") - 1, "");
>+  EXPECT_EQ(len, sizeof("hello there") - 1);
>+  len = absl::strings_internal::memcspn("hello there",
>+                                        sizeof("hello there") - 1, " ");
>+  EXPECT_EQ(len, 5);
>+
>+  p = absl::strings_internal::mempbrk("hello there", sizeof("hello there") - 1,
>+                                      "leho");
>+  EXPECT_TRUE(p && p[1] == 'e' && p[2] == 'l');
>+  p = absl::strings_internal::mempbrk("hello there", sizeof("hello there") - 1,
>+                                      "nu");
>+  EXPECT_TRUE(p == nullptr);
>+  p = absl::strings_internal::mempbrk("hello there!",
>+                                      sizeof("hello there!") - 2, "!");
>+  EXPECT_TRUE(p == nullptr);
>+  p = absl::strings_internal::mempbrk("hello there", sizeof("hello there") - 1,
>+                                      " t ");
>+  EXPECT_TRUE(p && p[-1] == 'o' && p[1] == 't');
>+
>+  {
>+    const char kHaystack[] = "0123456789";
>+    EXPECT_EQ(absl::strings_internal::memmem(kHaystack, 0, "", 0), kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmem(kHaystack, 10, "012", 3),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmem(kHaystack, 10, "0xx", 1),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmem(kHaystack, 10, "789", 3),
>+              kHaystack + 7);
>+    EXPECT_EQ(absl::strings_internal::memmem(kHaystack, 10, "9xx", 1),
>+              kHaystack + 9);
>+    EXPECT_TRUE(absl::strings_internal::memmem(kHaystack, 10, "9xx", 3) ==
>+                nullptr);
>+    EXPECT_TRUE(absl::strings_internal::memmem(kHaystack, 10, "xxx", 1) ==
>+                nullptr);
>+  }
>+  {
>+    const char kHaystack[] = "aBcDeFgHiJ";
>+    EXPECT_EQ(absl::strings_internal::memcasemem(kHaystack, 0, "", 0),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memcasemem(kHaystack, 10, "Abc", 3),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memcasemem(kHaystack, 10, "Axx", 1),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memcasemem(kHaystack, 10, "hIj", 3),
>+              kHaystack + 7);
>+    EXPECT_EQ(absl::strings_internal::memcasemem(kHaystack, 10, "jxx", 1),
>+              kHaystack + 9);
>+    EXPECT_TRUE(absl::strings_internal::memcasemem(kHaystack, 10, "jxx", 3) ==
>+                nullptr);
>+    EXPECT_TRUE(absl::strings_internal::memcasemem(kHaystack, 10, "xxx", 1) ==
>+                nullptr);
>+  }
>+  {
>+    const char kHaystack[] = "0123456789";
>+    EXPECT_EQ(absl::strings_internal::memmatch(kHaystack, 0, "", 0), kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmatch(kHaystack, 10, "012", 3),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmatch(kHaystack, 10, "0xx", 1),
>+              kHaystack);
>+    EXPECT_EQ(absl::strings_internal::memmatch(kHaystack, 10, "789", 3),
>+              kHaystack + 7);
>+    EXPECT_EQ(absl::strings_internal::memmatch(kHaystack, 10, "9xx", 1),
>+              kHaystack + 9);
>+    EXPECT_TRUE(absl::strings_internal::memmatch(kHaystack, 10, "9xx", 3) ==
>+                nullptr);
>+    EXPECT_TRUE(absl::strings_internal::memmatch(kHaystack, 10, "xxx", 1) ==
>+                nullptr);
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/numbers_test_common.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/numbers_test_common.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..20e3af51141efbed0589f544060eaae6958b1590
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/numbers_test_common.h
>@@ -0,0 +1,178 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This file contains common things needed by numbers_test.cc,
>+// numbers_legacy_test.cc and numbers_benchmark.cc.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
>+#define ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
>+
>+#include <array>
>+#include <cstdint>
>+#include <limits>
>+#include <string>
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+template <typename IntType>
>+inline bool Itoa(IntType value, int base, std::string* destination) {
>+  destination->clear();
>+  if (base <= 1 || base > 36) {
>+    return false;
>+  }
>+
>+  if (value == 0) {
>+    destination->push_back('0');
>+    return true;
>+  }
>+
>+  bool negative = value < 0;
>+  while (value != 0) {
>+    const IntType next_value = value / base;
>+    // Can't use std::abs here because of problems when IntType is unsigned.
>+    int remainder = value > next_value * base ? value - next_value * base
>+                                              : next_value * base - value;
>+    char c = remainder < 10 ? '0' + remainder : 'A' + remainder - 10;
>+    destination->insert(0, 1, c);
>+    value = next_value;
>+  }
>+
>+  if (negative) {
>+    destination->insert(0, 1, '-');
>+  }
>+  return true;
>+}
>+
>+struct uint32_test_case {
>+  const char* str;
>+  bool expect_ok;
>+  int base;  // base to pass to the conversion function
>+  uint32_t expected;
>+};
>+
>+inline const std::array<uint32_test_case, 27>& strtouint32_test_cases() {
>+  static const std::array<uint32_test_case, 27> test_cases{{
>+      {"0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
>+      {"0x34234324", true, 16, 0x34234324},
>+      {"34234324", true, 16, 0x34234324},
>+      {"0", true, 16, 0},
>+      {" \t\n 0xffffffff", true, 16, std::numeric_limits<uint32_t>::max()},
>+      {" \f\v 46", true, 10, 46},  // must accept weird whitespace
>+      {" \t\n 72717222", true, 8, 072717222},
>+      {" \t\n 072717222", true, 8, 072717222},
>+      {" \t\n 072717228", false, 8, 07271722},
>+      {"0", true, 0, 0},
>+
>+      // Base-10 version.
>+      {"34234324", true, 0, 34234324},
>+      {"4294967295", true, 0, std::numeric_limits<uint32_t>::max()},
>+      {"34234324 \n\t", true, 10, 34234324},
>+
>+      // Unusual base
>+      {"0", true, 3, 0},
>+      {"2", true, 3, 2},
>+      {"11", true, 3, 4},
>+
>+      // Invalid uints.
>+      {"", false, 0, 0},
>+      {"  ", false, 0, 0},
>+      {"abc", false, 0, 0},  // would be valid hex, but prefix is missing
>+      {"34234324a", false, 0, 34234324},
>+      {"34234.3", false, 0, 34234},
>+      {"-1", false, 0, 0},
>+      {"   -123", false, 0, 0},
>+      {" \t\n -123", false, 0, 0},
>+
>+      // Out of bounds.
>+      {"4294967296", false, 0, std::numeric_limits<uint32_t>::max()},
>+      {"0x100000000", false, 0, std::numeric_limits<uint32_t>::max()},
>+      {nullptr, false, 0, 0},
>+  }};
>+  return test_cases;
>+}
>+
>+struct uint64_test_case {
>+  const char* str;
>+  bool expect_ok;
>+  int base;
>+  uint64_t expected;
>+};
>+
>+inline const std::array<uint64_test_case, 34>& strtouint64_test_cases() {
>+  static const std::array<uint64_test_case, 34> test_cases{{
>+      {"0x3423432448783446", true, 16, int64_t{0x3423432448783446}},
>+      {"3423432448783446", true, 16, int64_t{0x3423432448783446}},
>+
>+      {"0", true, 16, 0},
>+      {"000", true, 0, 0},
>+      {"0", true, 0, 0},
>+      {" \t\n 0xffffffffffffffff", true, 16,
>+       std::numeric_limits<uint64_t>::max()},
>+
>+      {"012345670123456701234", true, 8, int64_t{012345670123456701234}},
>+      {"12345670123456701234", true, 8, int64_t{012345670123456701234}},
>+
>+      {"12845670123456701234", false, 8, 0},
>+
>+      // Base-10 version.
>+      {"34234324487834466", true, 0, int64_t{34234324487834466}},
>+
>+      {" \t\n 18446744073709551615", true, 0,
>+       std::numeric_limits<uint64_t>::max()},
>+
>+      {"34234324487834466 \n\t ", true, 0, int64_t{34234324487834466}},
>+
>+      {" \f\v 46", true, 10, 46},  // must accept weird whitespace
>+
>+      // Unusual base
>+      {"0", true, 3, 0},
>+      {"2", true, 3, 2},
>+      {"11", true, 3, 4},
>+
>+      {"0", true, 0, 0},
>+
>+      // Invalid uints.
>+      {"", false, 0, 0},
>+      {"  ", false, 0, 0},
>+      {"abc", false, 0, 0},
>+      {"34234324487834466a", false, 0, 0},
>+      {"34234487834466.3", false, 0, 0},
>+      {"-1", false, 0, 0},
>+      {"   -123", false, 0, 0},
>+      {" \t\n -123", false, 0, 0},
>+
>+      // Out of bounds.
>+      {"18446744073709551616", false, 10, 0},
>+      {"18446744073709551616", false, 0, 0},
>+      {"0x10000000000000000", false, 16, std::numeric_limits<uint64_t>::max()},
>+      {"0X10000000000000000", false, 16,
>+       std::numeric_limits<uint64_t>::max()},  // 0X versus 0x.
>+      {"0x10000000000000000", false, 0, std::numeric_limits<uint64_t>::max()},
>+      {"0X10000000000000000", false, 0,
>+       std::numeric_limits<uint64_t>::max()},  // 0X versus 0x.
>+
>+      {"0x1234", true, 16, 0x1234},
>+
>+      // Base-10 std::string version.
>+      {"1234", true, 0, 1234},
>+      {nullptr, false, 0, 0},
>+  }};
>+  return test_cases;
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_NUMBERS_TEST_COMMON_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..6ee2b109088722024d4f448b273c6057deea7eab
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.cc
>@@ -0,0 +1,34 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/ostringstream.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+OStringStream::Buf::int_type OStringStream::overflow(int c) {
>+  assert(s_);
>+  if (!Buf::traits_type::eq_int_type(c, Buf::traits_type::eof()))
>+    s_->push_back(static_cast<char>(c));
>+  return 1;
>+}
>+
>+std::streamsize OStringStream::xsputn(const char* s, std::streamsize n) {
>+  assert(s_);
>+  s_->append(s, n);
>+  return n;
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..6e1325b9140f8a0c3eedb6f5a13e21d8d6e0aaf6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream.h
>@@ -0,0 +1,87 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_OSTRINGSTREAM_H_
>+#define ABSL_STRINGS_INTERNAL_OSTRINGSTREAM_H_
>+
>+#include <cassert>
>+#include <ostream>
>+#include <streambuf>
>+#include <string>
>+
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// The same as std::ostringstream but appends to a user-specified std::string,
>+// and is faster. It is ~70% faster to create, ~50% faster to write to, and
>+// completely free to extract the result std::string.
>+//
>+//   std::string s;
>+//   OStringStream strm(&s);
>+//   strm << 42 << ' ' << 3.14;  // appends to `s`
>+//
>+// The stream object doesn't have to be named. Starting from C++11 operator<<
>+// works with rvalues of std::ostream.
>+//
>+//   std::string s;
>+//   OStringStream(&s) << 42 << ' ' << 3.14;  // appends to `s`
>+//
>+// OStringStream is faster to create than std::ostringstream but it's still
>+// relatively slow. Avoid creating multiple streams where a single stream will
>+// do.
>+//
>+// Creates unnecessary instances of OStringStream: slow.
>+//
>+//   std::string s;
>+//   OStringStream(&s) << 42;
>+//   OStringStream(&s) << ' ';
>+//   OStringStream(&s) << 3.14;
>+//
>+// Creates a single instance of OStringStream and reuses it: fast.
>+//
>+//   std::string s;
>+//   OStringStream strm(&s);
>+//   strm << 42;
>+//   strm << ' ';
>+//   strm << 3.14;
>+//
>+// Note: flush() has no effect. No reason to call it.
>+class OStringStream : private std::basic_streambuf<char>, public std::ostream {
>+ public:
>+  // The argument can be null, in which case you'll need to call str(p) with a
>+  // non-null argument before you can write to the stream.
>+  //
>+  // The destructor of OStringStream doesn't use the std::string. It's OK to destroy
>+  // the std::string before the stream.
>+  explicit OStringStream(std::string* s) : std::ostream(this), s_(s) {}
>+
>+  std::string* str() { return s_; }
>+  const std::string* str() const { return s_; }
>+  void str(std::string* s) { s_ = s; }
>+
>+ private:
>+  using Buf = std::basic_streambuf<char>;
>+
>+  Buf::int_type overflow(int c) override;
>+  std::streamsize xsputn(const char* s, std::streamsize n) override;
>+
>+  std::string* s_;
>+};
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_OSTRINGSTREAM_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c93f96909d8b65434204d010646f58f4623e4ad1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_benchmark.cc
>@@ -0,0 +1,106 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/ostringstream.h"
>+
>+#include <sstream>
>+#include <string>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+enum StringType {
>+  kNone,
>+  kStdString,
>+};
>+
>+// Benchmarks for std::ostringstream.
>+template <StringType kOutput>
>+void BM_StdStream(benchmark::State& state) {
>+  const int num_writes = state.range(0);
>+  const int bytes_per_write = state.range(1);
>+  const std::string payload(bytes_per_write, 'x');
>+  for (auto _ : state) {
>+    std::ostringstream strm;
>+    benchmark::DoNotOptimize(strm);
>+    for (int i = 0; i != num_writes; ++i) {
>+      strm << payload;
>+    }
>+    switch (kOutput) {
>+      case kNone: {
>+        break;
>+      }
>+      case kStdString: {
>+        std::string s = strm.str();
>+        benchmark::DoNotOptimize(s);
>+        break;
>+      }
>+    }
>+  }
>+}
>+
>+// Create the stream, optionally write to it, then destroy it.
>+BENCHMARK_TEMPLATE(BM_StdStream, kNone)
>+    ->ArgPair(0, 0)
>+    ->ArgPair(1, 16)   // 16 bytes is small enough for SSO
>+    ->ArgPair(1, 256)  // 256 bytes requires heap allocation
>+    ->ArgPair(1024, 256);
>+// Create the stream, write to it, get std::string out, then destroy.
>+BENCHMARK_TEMPLATE(BM_StdStream, kStdString)
>+    ->ArgPair(1, 16)   // 16 bytes is small enough for SSO
>+    ->ArgPair(1, 256)  // 256 bytes requires heap allocation
>+    ->ArgPair(1024, 256);
>+
>+// Benchmarks for OStringStream.
>+template <StringType kOutput>
>+void BM_CustomStream(benchmark::State& state) {
>+  const int num_writes = state.range(0);
>+  const int bytes_per_write = state.range(1);
>+  const std::string payload(bytes_per_write, 'x');
>+  for (auto _ : state) {
>+    std::string out;
>+    absl::strings_internal::OStringStream strm(&out);
>+    benchmark::DoNotOptimize(strm);
>+    for (int i = 0; i != num_writes; ++i) {
>+      strm << payload;
>+    }
>+    switch (kOutput) {
>+      case kNone: {
>+        break;
>+      }
>+      case kStdString: {
>+        std::string s = out;
>+        benchmark::DoNotOptimize(s);
>+        break;
>+      }
>+    }
>+  }
>+}
>+
>+// Create the stream, optionally write to it, then destroy it.
>+BENCHMARK_TEMPLATE(BM_CustomStream, kNone)
>+    ->ArgPair(0, 0)
>+    ->ArgPair(1, 16)   // 16 bytes is small enough for SSO
>+    ->ArgPair(1, 256)  // 256 bytes requires heap allocation
>+    ->ArgPair(1024, 256);
>+// Create the stream, write to it, get std::string out, then destroy.
>+// It's not useful in practice to extract std::string from OStringStream; we
>+// measure it for completeness.
>+BENCHMARK_TEMPLATE(BM_CustomStream, kStdString)
>+    ->ArgPair(1, 16)   // 16 bytes is small enough for SSO
>+    ->ArgPair(1, 256)  // 256 bytes requires heap allocation
>+    ->ArgPair(1024, 256);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..069a0e1fbbb114522ed22b91cbb1992060192ce1
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/ostringstream_test.cc
>@@ -0,0 +1,102 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/ostringstream.h"
>+
>+#include <memory>
>+#include <ostream>
>+#include <string>
>+#include <type_traits>
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+TEST(OStringStream, IsOStream) {
>+  static_assert(
>+      std::is_base_of<std::ostream, absl::strings_internal::OStringStream>(),
>+      "");
>+}
>+
>+TEST(OStringStream, ConstructDestroy) {
>+  {
>+    absl::strings_internal::OStringStream strm(nullptr);
>+    EXPECT_EQ(nullptr, strm.str());
>+  }
>+  {
>+    std::string s = "abc";
>+    {
>+      absl::strings_internal::OStringStream strm(&s);
>+      EXPECT_EQ(&s, strm.str());
>+    }
>+    EXPECT_EQ("abc", s);
>+  }
>+  {
>+    std::unique_ptr<std::string> s(new std::string);
>+    absl::strings_internal::OStringStream strm(s.get());
>+    s.reset();
>+  }
>+}
>+
>+TEST(OStringStream, Str) {
>+  std::string s1;
>+  absl::strings_internal::OStringStream strm(&s1);
>+  const absl::strings_internal::OStringStream& c_strm(strm);
>+
>+  static_assert(std::is_same<decltype(strm.str()), std::string*>(), "");
>+  static_assert(std::is_same<decltype(c_strm.str()), const std::string*>(), "");
>+
>+  EXPECT_EQ(&s1, strm.str());
>+  EXPECT_EQ(&s1, c_strm.str());
>+
>+  strm.str(&s1);
>+  EXPECT_EQ(&s1, strm.str());
>+  EXPECT_EQ(&s1, c_strm.str());
>+
>+  std::string s2;
>+  strm.str(&s2);
>+  EXPECT_EQ(&s2, strm.str());
>+  EXPECT_EQ(&s2, c_strm.str());
>+
>+  strm.str(nullptr);
>+  EXPECT_EQ(nullptr, strm.str());
>+  EXPECT_EQ(nullptr, c_strm.str());
>+}
>+
>+TEST(OStreamStream, WriteToLValue) {
>+  std::string s = "abc";
>+  {
>+    absl::strings_internal::OStringStream strm(&s);
>+    EXPECT_EQ("abc", s);
>+    strm << "";
>+    EXPECT_EQ("abc", s);
>+    strm << 42;
>+    EXPECT_EQ("abc42", s);
>+    strm << 'x' << 'y';
>+    EXPECT_EQ("abc42xy", s);
>+  }
>+  EXPECT_EQ("abc42xy", s);
>+}
>+
>+TEST(OStreamStream, WriteToRValue) {
>+  std::string s = "abc";
>+  absl::strings_internal::OStringStream(&s) << "";
>+  EXPECT_EQ("abc", s);
>+  absl::strings_internal::OStringStream(&s) << 42;
>+  EXPECT_EQ("abc42", s);
>+  absl::strings_internal::OStringStream(&s) << 'x' << 'y';
>+  EXPECT_EQ("abc42xy", s);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..0157ca0245f350bece6dcbe1987bdb80b4a54551
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized.h
>@@ -0,0 +1,69 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_
>+#define ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_
>+
>+#include <string>
>+#include <utility>
>+
>+#include "absl/base/port.h"
>+#include "absl/meta/type_traits.h"  //  for void_t
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// Is a subclass of true_type or false_type, depending on whether or not
>+// T has a resize_uninitialized member.
>+template <typename T, typename = void>
>+struct HasResizeUninitialized : std::false_type {};
>+template <typename T>
>+struct HasResizeUninitialized<
>+    T, absl::void_t<decltype(std::declval<T>().resize_uninitialized(237))>>
>+    : std::true_type {};
>+
>+template <typename string_type>
>+void ResizeUninit(string_type* s, size_t new_size, std::true_type) {
>+  s->resize_uninitialized(new_size);
>+}
>+template <typename string_type>
>+void ResizeUninit(string_type* s, size_t new_size, std::false_type) {
>+  s->resize(new_size);
>+}
>+
>+// Returns true if the std::string implementation supports a resize where
>+// the new characters added to the std::string are left untouched.
>+//
>+// (A better name might be "STLStringSupportsUninitializedResize", alluding to
>+// the previous function.)
>+template <typename string_type>
>+inline constexpr bool STLStringSupportsNontrashingResize(string_type*) {
>+  return HasResizeUninitialized<string_type>();
>+}
>+
>+// Like str->resize(new_size), except any new characters added to "*str" as a
>+// result of resizing may be left uninitialized, rather than being filled with
>+// '0' bytes. Typically used when code is then going to overwrite the backing
>+// store of the std::string with known data. Uses a Google extension to std::string.
>+template <typename string_type, typename = void>
>+inline void STLStringResizeUninitialized(string_type* s, size_t new_size) {
>+  ResizeUninit(s, new_size, HasResizeUninitialized<string_type>());
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_RESIZE_UNINITIALIZED_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ad282efcd9bb89f885db0f3e4fab8e4df253399a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/resize_uninitialized_test.cc
>@@ -0,0 +1,68 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/resize_uninitialized.h"
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+int resize_call_count = 0;
>+
>+struct resizable_string {
>+  void resize(size_t) { resize_call_count += 1; }
>+};
>+
>+int resize_uninitialized_call_count = 0;
>+
>+struct resize_uninitializable_string {
>+  void resize(size_t) { resize_call_count += 1; }
>+  void resize_uninitialized(size_t) { resize_uninitialized_call_count += 1; }
>+};
>+
>+TEST(ResizeUninit, WithAndWithout) {
>+  resize_call_count = 0;
>+  resize_uninitialized_call_count = 0;
>+  {
>+    resizable_string rs;
>+
>+    EXPECT_EQ(resize_call_count, 0);
>+    EXPECT_EQ(resize_uninitialized_call_count, 0);
>+    EXPECT_FALSE(
>+        absl::strings_internal::STLStringSupportsNontrashingResize(&rs));
>+    EXPECT_EQ(resize_call_count, 0);
>+    EXPECT_EQ(resize_uninitialized_call_count, 0);
>+    absl::strings_internal::STLStringResizeUninitialized(&rs, 237);
>+    EXPECT_EQ(resize_call_count, 1);
>+    EXPECT_EQ(resize_uninitialized_call_count, 0);
>+  }
>+
>+  resize_call_count = 0;
>+  resize_uninitialized_call_count = 0;
>+  {
>+    resize_uninitializable_string rus;
>+
>+    EXPECT_EQ(resize_call_count, 0);
>+    EXPECT_EQ(resize_uninitialized_call_count, 0);
>+    EXPECT_TRUE(
>+        absl::strings_internal::STLStringSupportsNontrashingResize(&rus));
>+    EXPECT_EQ(resize_call_count, 0);
>+    EXPECT_EQ(resize_uninitialized_call_count, 0);
>+    absl::strings_internal::STLStringResizeUninitialized(&rus, 237);
>+    EXPECT_EQ(resize_call_count, 0);
>+    EXPECT_EQ(resize_uninitialized_call_count, 1);
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/stl_type_traits.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/stl_type_traits.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..04c4a5323b86215770a5c931282ac7bac352e76e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/stl_type_traits.h
>@@ -0,0 +1,246 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// Thie file provides the IsStrictlyBaseOfAndConvertibleToSTLContainer type
>+// trait metafunction to assist in working with the _GLIBCXX_DEBUG debug
>+// wrappers of STL containers.
>+//
>+// DO NOT INCLUDE THIS FILE DIRECTLY. Use this file by including
>+// absl/strings/str_split.h.
>+//
>+// IWYU pragma: private, include "absl/strings/str_split.h"
>+
>+#ifndef ABSL_STRINGS_INTERNAL_STL_TYPE_TRAITS_H_
>+#define ABSL_STRINGS_INTERNAL_STL_TYPE_TRAITS_H_
>+
>+#include <array>
>+#include <bitset>
>+#include <deque>
>+#include <forward_list>
>+#include <list>
>+#include <map>
>+#include <set>
>+#include <type_traits>
>+#include <unordered_map>
>+#include <unordered_set>
>+#include <vector>
>+
>+#include "absl/meta/type_traits.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+template <typename C, template <typename...> class T>
>+struct IsSpecializationImpl : std::false_type {};
>+template <template <typename...> class T, typename... Args>
>+struct IsSpecializationImpl<T<Args...>, T> : std::true_type {};
>+template <typename C, template <typename...> class T>
>+using IsSpecialization = IsSpecializationImpl<absl::decay_t<C>, T>;
>+
>+template <typename C>
>+struct IsArrayImpl : std::false_type {};
>+template <template <typename, size_t> class A, typename T, size_t N>
>+struct IsArrayImpl<A<T, N>> : std::is_same<A<T, N>, std::array<T, N>> {};
>+template <typename C>
>+using IsArray = IsArrayImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsBitsetImpl : std::false_type {};
>+template <template <size_t> class B, size_t N>
>+struct IsBitsetImpl<B<N>> : std::is_same<B<N>, std::bitset<N>> {};
>+template <typename C>
>+using IsBitset = IsBitsetImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsSTLContainer
>+    : absl::disjunction<
>+          IsArray<C>, IsBitset<C>, IsSpecialization<C, std::deque>,
>+          IsSpecialization<C, std::forward_list>,
>+          IsSpecialization<C, std::list>, IsSpecialization<C, std::map>,
>+          IsSpecialization<C, std::multimap>, IsSpecialization<C, std::set>,
>+          IsSpecialization<C, std::multiset>,
>+          IsSpecialization<C, std::unordered_map>,
>+          IsSpecialization<C, std::unordered_multimap>,
>+          IsSpecialization<C, std::unordered_set>,
>+          IsSpecialization<C, std::unordered_multiset>,
>+          IsSpecialization<C, std::vector>> {};
>+
>+template <typename C, template <typename...> class T, typename = void>
>+struct IsBaseOfSpecializationImpl : std::false_type {};
>+// IsBaseOfSpecializationImpl needs multiple partial specializations to SFINAE
>+// on the existence of container dependent types and plug them into the STL
>+// template.
>+template <typename C, template <typename, typename> class T>
>+struct IsBaseOfSpecializationImpl<
>+    C, T, absl::void_t<typename C::value_type, typename C::allocator_type>>
>+    : std::is_base_of<C,
>+                      T<typename C::value_type, typename C::allocator_type>> {};
>+template <typename C, template <typename, typename, typename> class T>
>+struct IsBaseOfSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::key_compare,
>+                 typename C::allocator_type>>
>+    : std::is_base_of<C, T<typename C::key_type, typename C::key_compare,
>+                           typename C::allocator_type>> {};
>+template <typename C, template <typename, typename, typename, typename> class T>
>+struct IsBaseOfSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::mapped_type,
>+                 typename C::key_compare, typename C::allocator_type>>
>+    : std::is_base_of<C,
>+                      T<typename C::key_type, typename C::mapped_type,
>+                        typename C::key_compare, typename C::allocator_type>> {
>+};
>+template <typename C, template <typename, typename, typename, typename> class T>
>+struct IsBaseOfSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::hasher,
>+                 typename C::key_equal, typename C::allocator_type>>
>+    : std::is_base_of<C, T<typename C::key_type, typename C::hasher,
>+                           typename C::key_equal, typename C::allocator_type>> {
>+};
>+template <typename C,
>+          template <typename, typename, typename, typename, typename> class T>
>+struct IsBaseOfSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::mapped_type,
>+                 typename C::hasher, typename C::key_equal,
>+                 typename C::allocator_type>>
>+    : std::is_base_of<C, T<typename C::key_type, typename C::mapped_type,
>+                           typename C::hasher, typename C::key_equal,
>+                           typename C::allocator_type>> {};
>+template <typename C, template <typename...> class T>
>+using IsBaseOfSpecialization = IsBaseOfSpecializationImpl<absl::decay_t<C>, T>;
>+
>+template <typename C>
>+struct IsBaseOfArrayImpl : std::false_type {};
>+template <template <typename, size_t> class A, typename T, size_t N>
>+struct IsBaseOfArrayImpl<A<T, N>> : std::is_base_of<A<T, N>, std::array<T, N>> {
>+};
>+template <typename C>
>+using IsBaseOfArray = IsBaseOfArrayImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsBaseOfBitsetImpl : std::false_type {};
>+template <template <size_t> class B, size_t N>
>+struct IsBaseOfBitsetImpl<B<N>> : std::is_base_of<B<N>, std::bitset<N>> {};
>+template <typename C>
>+using IsBaseOfBitset = IsBaseOfBitsetImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsBaseOfSTLContainer
>+    : absl::disjunction<IsBaseOfArray<C>, IsBaseOfBitset<C>,
>+                        IsBaseOfSpecialization<C, std::deque>,
>+                        IsBaseOfSpecialization<C, std::forward_list>,
>+                        IsBaseOfSpecialization<C, std::list>,
>+                        IsBaseOfSpecialization<C, std::map>,
>+                        IsBaseOfSpecialization<C, std::multimap>,
>+                        IsBaseOfSpecialization<C, std::set>,
>+                        IsBaseOfSpecialization<C, std::multiset>,
>+                        IsBaseOfSpecialization<C, std::unordered_map>,
>+                        IsBaseOfSpecialization<C, std::unordered_multimap>,
>+                        IsBaseOfSpecialization<C, std::unordered_set>,
>+                        IsBaseOfSpecialization<C, std::unordered_multiset>,
>+                        IsBaseOfSpecialization<C, std::vector>> {};
>+
>+template <typename C, template <typename...> class T, typename = void>
>+struct IsConvertibleToSpecializationImpl : std::false_type {};
>+// IsConvertibleToSpecializationImpl needs multiple partial specializations to
>+// SFINAE on the existence of container dependent types and plug them into the
>+// STL template.
>+template <typename C, template <typename, typename> class T>
>+struct IsConvertibleToSpecializationImpl<
>+    C, T, absl::void_t<typename C::value_type, typename C::allocator_type>>
>+    : std::is_convertible<
>+          C, T<typename C::value_type, typename C::allocator_type>> {};
>+template <typename C, template <typename, typename, typename> class T>
>+struct IsConvertibleToSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::key_compare,
>+                 typename C::allocator_type>>
>+    : std::is_convertible<C, T<typename C::key_type, typename C::key_compare,
>+                               typename C::allocator_type>> {};
>+template <typename C, template <typename, typename, typename, typename> class T>
>+struct IsConvertibleToSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::mapped_type,
>+                 typename C::key_compare, typename C::allocator_type>>
>+    : std::is_convertible<
>+          C, T<typename C::key_type, typename C::mapped_type,
>+               typename C::key_compare, typename C::allocator_type>> {};
>+template <typename C, template <typename, typename, typename, typename> class T>
>+struct IsConvertibleToSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::hasher,
>+                 typename C::key_equal, typename C::allocator_type>>
>+    : std::is_convertible<
>+          C, T<typename C::key_type, typename C::hasher, typename C::key_equal,
>+               typename C::allocator_type>> {};
>+template <typename C,
>+          template <typename, typename, typename, typename, typename> class T>
>+struct IsConvertibleToSpecializationImpl<
>+    C, T,
>+    absl::void_t<typename C::key_type, typename C::mapped_type,
>+                 typename C::hasher, typename C::key_equal,
>+                 typename C::allocator_type>>
>+    : std::is_convertible<C, T<typename C::key_type, typename C::mapped_type,
>+                               typename C::hasher, typename C::key_equal,
>+                               typename C::allocator_type>> {};
>+template <typename C, template <typename...> class T>
>+using IsConvertibleToSpecialization =
>+    IsConvertibleToSpecializationImpl<absl::decay_t<C>, T>;
>+
>+template <typename C>
>+struct IsConvertibleToArrayImpl : std::false_type {};
>+template <template <typename, size_t> class A, typename T, size_t N>
>+struct IsConvertibleToArrayImpl<A<T, N>>
>+    : std::is_convertible<A<T, N>, std::array<T, N>> {};
>+template <typename C>
>+using IsConvertibleToArray = IsConvertibleToArrayImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsConvertibleToBitsetImpl : std::false_type {};
>+template <template <size_t> class B, size_t N>
>+struct IsConvertibleToBitsetImpl<B<N>>
>+    : std::is_convertible<B<N>, std::bitset<N>> {};
>+template <typename C>
>+using IsConvertibleToBitset = IsConvertibleToBitsetImpl<absl::decay_t<C>>;
>+
>+template <typename C>
>+struct IsConvertibleToSTLContainer
>+    : absl::disjunction<
>+          IsConvertibleToArray<C>, IsConvertibleToBitset<C>,
>+          IsConvertibleToSpecialization<C, std::deque>,
>+          IsConvertibleToSpecialization<C, std::forward_list>,
>+          IsConvertibleToSpecialization<C, std::list>,
>+          IsConvertibleToSpecialization<C, std::map>,
>+          IsConvertibleToSpecialization<C, std::multimap>,
>+          IsConvertibleToSpecialization<C, std::set>,
>+          IsConvertibleToSpecialization<C, std::multiset>,
>+          IsConvertibleToSpecialization<C, std::unordered_map>,
>+          IsConvertibleToSpecialization<C, std::unordered_multimap>,
>+          IsConvertibleToSpecialization<C, std::unordered_set>,
>+          IsConvertibleToSpecialization<C, std::unordered_multiset>,
>+          IsConvertibleToSpecialization<C, std::vector>> {};
>+
>+template <typename C>
>+struct IsStrictlyBaseOfAndConvertibleToSTLContainer
>+    : absl::conjunction<absl::negation<IsSTLContainer<C>>,
>+                        IsBaseOfSTLContainer<C>,
>+                        IsConvertibleToSTLContainer<C>> {};
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+#endif  // ABSL_STRINGS_INTERNAL_STL_TYPE_TRAITS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..eafb068fe2867446270f228a6449e0db5a4ccab5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc
>@@ -0,0 +1,399 @@
>+//
>+// POSIX spec:
>+//   http://pubs.opengroup.org/onlinepubs/009695399/functions/fprintf.html
>+//
>+#include "absl/strings/internal/str_format/arg.h"
>+
>+#include <cassert>
>+#include <cerrno>
>+#include <cstdlib>
>+#include <string>
>+#include <type_traits>
>+
>+#include "absl/base/port.h"
>+#include "absl/strings/internal/str_format/float_conversion.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+const char kDigit[2][32] = { "0123456789abcdef", "0123456789ABCDEF" };
>+
>+// Reduce *capacity by s.size(), clipped to a 0 minimum.
>+void ReducePadding(string_view s, size_t *capacity) {
>+  *capacity = Excess(s.size(), *capacity);
>+}
>+
>+// Reduce *capacity by n, clipped to a 0 minimum.
>+void ReducePadding(size_t n, size_t *capacity) {
>+  *capacity = Excess(n, *capacity);
>+}
>+
>+template <typename T>
>+struct MakeUnsigned : std::make_unsigned<T> {};
>+template <>
>+struct MakeUnsigned<absl::uint128> {
>+  using type = absl::uint128;
>+};
>+
>+template <typename T>
>+struct IsSigned : std::is_signed<T> {};
>+template <>
>+struct IsSigned<absl::uint128> : std::false_type {};
>+
>+class ConvertedIntInfo {
>+ public:
>+  template <typename T>
>+  ConvertedIntInfo(T v, ConversionChar conv) {
>+    using Unsigned = typename MakeUnsigned<T>::type;
>+    auto u = static_cast<Unsigned>(v);
>+    if (IsNeg(v)) {
>+      is_neg_ = true;
>+      u = Unsigned{} - u;
>+    } else {
>+      is_neg_ = false;
>+    }
>+    UnsignedToStringRight(u, conv);
>+  }
>+
>+  string_view digits() const {
>+    return {end() - size_, static_cast<size_t>(size_)};
>+  }
>+  bool is_neg() const { return is_neg_; }
>+
>+ private:
>+  template <typename T, bool IsSigned>
>+  struct IsNegImpl {
>+    static bool Eval(T v) { return v < 0; }
>+  };
>+  template <typename T>
>+  struct IsNegImpl<T, false> {
>+    static bool Eval(T) {
>+      return false;
>+    }
>+  };
>+
>+  template <typename T>
>+  bool IsNeg(T v) {
>+    return IsNegImpl<T, IsSigned<T>::value>::Eval(v);
>+  }
>+
>+  template <typename T>
>+  void UnsignedToStringRight(T u, ConversionChar conv) {
>+    char *p = end();
>+    switch (conv.radix()) {
>+      default:
>+      case 10:
>+        for (; u; u /= 10)
>+          *--p = static_cast<char>('0' + static_cast<size_t>(u % 10));
>+        break;
>+      case 8:
>+        for (; u; u /= 8)
>+          *--p = static_cast<char>('0' + static_cast<size_t>(u % 8));
>+        break;
>+      case 16: {
>+        const char *digits = kDigit[conv.upper() ? 1 : 0];
>+        for (; u; u /= 16) *--p = digits[static_cast<size_t>(u % 16)];
>+        break;
>+      }
>+    }
>+    size_ = static_cast<int>(end() - p);
>+  }
>+
>+  const char *end() const { return storage_ + sizeof(storage_); }
>+  char *end() { return storage_ + sizeof(storage_); }
>+
>+  bool is_neg_;
>+  int size_;
>+  // Max size: 128 bit value as octal -> 43 digits
>+  char storage_[128 / 3 + 1];
>+};
>+
>+// Note: 'o' conversions do not have a base indicator, it's just that
>+// the '#' flag is specified to modify the precision for 'o' conversions.
>+string_view BaseIndicator(const ConvertedIntInfo &info,
>+                          const ConversionSpec &conv) {
>+  bool alt = conv.flags().alt;
>+  int radix = conv.conv().radix();
>+  if (conv.conv().id() == ConversionChar::p)
>+    alt = true;  // always show 0x for %p.
>+  // From the POSIX description of '#' flag:
>+  //   "For x or X conversion specifiers, a non-zero result shall have
>+  //   0x (or 0X) prefixed to it."
>+  if (alt && radix == 16 && !info.digits().empty()) {
>+    if (conv.conv().upper()) return "0X";
>+    return "0x";
>+  }
>+  return {};
>+}
>+
>+string_view SignColumn(bool neg, const ConversionSpec &conv) {
>+  if (conv.conv().is_signed()) {
>+    if (neg) return "-";
>+    if (conv.flags().show_pos) return "+";
>+    if (conv.flags().sign_col) return " ";
>+  }
>+  return {};
>+}
>+
>+bool ConvertCharImpl(unsigned char v, const ConversionSpec &conv,
>+                     FormatSinkImpl *sink) {
>+  size_t fill = 0;
>+  if (conv.width() >= 0) fill = conv.width();
>+  ReducePadding(1, &fill);
>+  if (!conv.flags().left) sink->Append(fill, ' ');
>+  sink->Append(1, v);
>+  if (conv.flags().left) sink->Append(fill, ' ');
>+  return true;
>+}
>+
>+bool ConvertIntImplInner(const ConvertedIntInfo &info,
>+                         const ConversionSpec &conv, FormatSinkImpl *sink) {
>+  // Print as a sequence of Substrings:
>+  //   [left_spaces][sign][base_indicator][zeroes][formatted][right_spaces]
>+  size_t fill = 0;
>+  if (conv.width() >= 0) fill = conv.width();
>+
>+  string_view formatted = info.digits();
>+  ReducePadding(formatted, &fill);
>+
>+  string_view sign = SignColumn(info.is_neg(), conv);
>+  ReducePadding(sign, &fill);
>+
>+  string_view base_indicator = BaseIndicator(info, conv);
>+  ReducePadding(base_indicator, &fill);
>+
>+  int precision = conv.precision();
>+  bool precision_specified = precision >= 0;
>+  if (!precision_specified)
>+    precision = 1;
>+
>+  if (conv.flags().alt && conv.conv().id() == ConversionChar::o) {
>+    // From POSIX description of the '#' (alt) flag:
>+    //   "For o conversion, it increases the precision (if necessary) to
>+    //   force the first digit of the result to be zero."
>+    if (formatted.empty() || *formatted.begin() != '0') {
>+      int needed = static_cast<int>(formatted.size()) + 1;
>+      precision = std::max(precision, needed);
>+    }
>+  }
>+
>+  size_t num_zeroes = Excess(formatted.size(), precision);
>+  ReducePadding(num_zeroes, &fill);
>+
>+  size_t num_left_spaces = !conv.flags().left ? fill : 0;
>+  size_t num_right_spaces = conv.flags().left ? fill : 0;
>+
>+  // From POSIX description of the '0' (zero) flag:
>+  //   "For d, i, o, u, x, and X conversion specifiers, if a precision
>+  //   is specified, the '0' flag is ignored."
>+  if (!precision_specified && conv.flags().zero) {
>+    num_zeroes += num_left_spaces;
>+    num_left_spaces = 0;
>+  }
>+
>+  sink->Append(num_left_spaces, ' ');
>+  sink->Append(sign);
>+  sink->Append(base_indicator);
>+  sink->Append(num_zeroes, '0');
>+  sink->Append(formatted);
>+  sink->Append(num_right_spaces, ' ');
>+  return true;
>+}
>+
>+template <typename T>
>+bool ConvertIntImplInner(T v, const ConversionSpec &conv,
>+                         FormatSinkImpl *sink) {
>+  ConvertedIntInfo info(v, conv.conv());
>+  if (conv.flags().basic && conv.conv().id() != ConversionChar::p) {
>+    if (info.is_neg()) sink->Append(1, '-');
>+    if (info.digits().empty()) {
>+      sink->Append(1, '0');
>+    } else {
>+      sink->Append(info.digits());
>+    }
>+    return true;
>+  }
>+  return ConvertIntImplInner(info, conv, sink);
>+}
>+
>+template <typename T>
>+bool ConvertIntArg(T v, const ConversionSpec &conv, FormatSinkImpl *sink) {
>+  if (conv.conv().is_float()) {
>+    return FormatConvertImpl(static_cast<double>(v), conv, sink).value;
>+  }
>+  if (conv.conv().id() == ConversionChar::c)
>+    return ConvertCharImpl(static_cast<unsigned char>(v), conv, sink);
>+  if (!conv.conv().is_integral())
>+    return false;
>+  if (!conv.conv().is_signed() && IsSigned<T>::value) {
>+    using U = typename MakeUnsigned<T>::type;
>+    return FormatConvertImpl(static_cast<U>(v), conv, sink).value;
>+  }
>+  return ConvertIntImplInner(v, conv, sink);
>+}
>+
>+template <typename T>
>+bool ConvertFloatArg(T v, const ConversionSpec &conv, FormatSinkImpl *sink) {
>+  return conv.conv().is_float() && ConvertFloatImpl(v, conv, sink);
>+}
>+
>+inline bool ConvertStringArg(string_view v, const ConversionSpec &conv,
>+                             FormatSinkImpl *sink) {
>+  if (conv.conv().id() != ConversionChar::s)
>+    return false;
>+  if (conv.flags().basic) {
>+    sink->Append(v);
>+    return true;
>+  }
>+  return sink->PutPaddedString(v, conv.width(), conv.precision(),
>+                               conv.flags().left);
>+}
>+
>+}  // namespace
>+
>+// ==================== Strings ====================
>+ConvertResult<Conv::s> FormatConvertImpl(const std::string &v,
>+                                         const ConversionSpec &conv,
>+                                         FormatSinkImpl *sink) {
>+  return {ConvertStringArg(v, conv, sink)};
>+}
>+
>+ConvertResult<Conv::s> FormatConvertImpl(string_view v,
>+                                         const ConversionSpec &conv,
>+                                         FormatSinkImpl *sink) {
>+  return {ConvertStringArg(v, conv, sink)};
>+}
>+
>+ConvertResult<Conv::s | Conv::p> FormatConvertImpl(const char *v,
>+                                                   const ConversionSpec &conv,
>+                                                   FormatSinkImpl *sink) {
>+  if (conv.conv().id() == ConversionChar::p)
>+    return {FormatConvertImpl(VoidPtr(v), conv, sink).value};
>+  size_t len;
>+  if (v == nullptr) {
>+    len = 0;
>+  } else if (conv.precision() < 0) {
>+    len = std::strlen(v);
>+  } else {
>+    // If precision is set, we look for the null terminator on the valid range.
>+    len = std::find(v, v + conv.precision(), '\0') - v;
>+  }
>+  return {ConvertStringArg(string_view(v, len), conv, sink)};
>+}
>+
>+// ==================== Raw pointers ====================
>+ConvertResult<Conv::p> FormatConvertImpl(VoidPtr v, const ConversionSpec &conv,
>+                                         FormatSinkImpl *sink) {
>+  if (conv.conv().id() != ConversionChar::p)
>+    return {false};
>+  if (!v.value) {
>+    sink->Append("(nil)");
>+    return {true};
>+  }
>+  return {ConvertIntImplInner(v.value, conv, sink)};
>+}
>+
>+// ==================== Floats ====================
>+FloatingConvertResult FormatConvertImpl(float v, const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertFloatArg(v, conv, sink)};
>+}
>+FloatingConvertResult FormatConvertImpl(double v, const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertFloatArg(v, conv, sink)};
>+}
>+FloatingConvertResult FormatConvertImpl(long double v,
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertFloatArg(v, conv, sink)};
>+}
>+
>+// ==================== Chars ====================
>+IntegralConvertResult FormatConvertImpl(char v, const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(signed char v,
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(unsigned char v,
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+
>+// ==================== Ints ====================
>+IntegralConvertResult FormatConvertImpl(short v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(unsigned short v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(int v, const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(unsigned v, const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(long v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(unsigned long v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(long long v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(unsigned long long v,  // NOLINT
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+IntegralConvertResult FormatConvertImpl(absl::uint128 v,
>+                                        const ConversionSpec &conv,
>+                                        FormatSinkImpl *sink) {
>+  return {ConvertIntArg(v, conv, sink)};
>+}
>+
>+template struct FormatArgImpl::TypedVTable<str_format_internal::VoidPtr>;
>+
>+template struct FormatArgImpl::TypedVTable<bool>;
>+template struct FormatArgImpl::TypedVTable<char>;
>+template struct FormatArgImpl::TypedVTable<signed char>;
>+template struct FormatArgImpl::TypedVTable<unsigned char>;
>+template struct FormatArgImpl::TypedVTable<short>;           // NOLINT
>+template struct FormatArgImpl::TypedVTable<unsigned short>;  // NOLINT
>+template struct FormatArgImpl::TypedVTable<int>;
>+template struct FormatArgImpl::TypedVTable<unsigned>;
>+template struct FormatArgImpl::TypedVTable<long>;                // NOLINT
>+template struct FormatArgImpl::TypedVTable<unsigned long>;       // NOLINT
>+template struct FormatArgImpl::TypedVTable<long long>;           // NOLINT
>+template struct FormatArgImpl::TypedVTable<unsigned long long>;  // NOLINT
>+template struct FormatArgImpl::TypedVTable<absl::uint128>;
>+
>+template struct FormatArgImpl::TypedVTable<float>;
>+template struct FormatArgImpl::TypedVTable<double>;
>+template struct FormatArgImpl::TypedVTable<long double>;
>+
>+template struct FormatArgImpl::TypedVTable<const char *>;
>+template struct FormatArgImpl::TypedVTable<std::string>;
>+template struct FormatArgImpl::TypedVTable<string_view>;
>+
>+}  // namespace str_format_internal
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a9562188ea91973a629828e0dec82bd470c9c07a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg.h
>@@ -0,0 +1,434 @@
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_ARG_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_ARG_H_
>+
>+#include <string.h>
>+#include <wchar.h>
>+
>+#include <cstdio>
>+#include <iomanip>
>+#include <limits>
>+#include <sstream>
>+#include <string>
>+#include <type_traits>
>+
>+#include "absl/base/port.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/numeric/int128.h"
>+#include "absl/strings/internal/str_format/extension.h"
>+#include "absl/strings/string_view.h"
>+
>+class Cord;
>+class CordReader;
>+
>+namespace absl {
>+
>+class FormatCountCapture;
>+class FormatSink;
>+
>+namespace str_format_internal {
>+
>+template <typename T, typename = void>
>+struct HasUserDefinedConvert : std::false_type {};
>+
>+template <typename T>
>+struct HasUserDefinedConvert<
>+    T, void_t<decltype(AbslFormatConvert(
>+           std::declval<const T&>(), std::declval<const ConversionSpec&>(),
>+           std::declval<FormatSink*>()))>> : std::true_type {};
>+template <typename T>
>+class StreamedWrapper;
>+
>+// If 'v' can be converted (in the printf sense) according to 'conv',
>+// then convert it, appending to `sink` and return `true`.
>+// Otherwise fail and return `false`.
>+// Raw pointers.
>+struct VoidPtr {
>+  VoidPtr() = default;
>+  template <typename T,
>+            decltype(reinterpret_cast<uintptr_t>(std::declval<T*>())) = 0>
>+  VoidPtr(T* ptr)  // NOLINT
>+      : value(ptr ? reinterpret_cast<uintptr_t>(ptr) : 0) {}
>+  uintptr_t value;
>+};
>+ConvertResult<Conv::p> FormatConvertImpl(VoidPtr v, const ConversionSpec& conv,
>+                                         FormatSinkImpl* sink);
>+
>+// Strings.
>+ConvertResult<Conv::s> FormatConvertImpl(const std::string& v,
>+                                         const ConversionSpec& conv,
>+                                         FormatSinkImpl* sink);
>+ConvertResult<Conv::s> FormatConvertImpl(string_view v,
>+                                         const ConversionSpec& conv,
>+                                         FormatSinkImpl* sink);
>+ConvertResult<Conv::s | Conv::p> FormatConvertImpl(const char* v,
>+                                                   const ConversionSpec& conv,
>+                                                   FormatSinkImpl* sink);
>+template <class AbslCord,
>+          typename std::enable_if<
>+              std::is_same<AbslCord, ::Cord>::value>::type* = nullptr,
>+          class AbslCordReader = ::CordReader>
>+ConvertResult<Conv::s> FormatConvertImpl(const AbslCord& value,
>+                                         const ConversionSpec& conv,
>+                                         FormatSinkImpl* sink) {
>+  if (conv.conv().id() != ConversionChar::s) return {false};
>+
>+  bool is_left = conv.flags().left;
>+  size_t space_remaining = 0;
>+
>+  int width = conv.width();
>+  if (width >= 0) space_remaining = width;
>+
>+  size_t to_write = value.size();
>+
>+  int precision = conv.precision();
>+  if (precision >= 0)
>+    to_write = std::min(to_write, static_cast<size_t>(precision));
>+
>+  space_remaining = Excess(to_write, space_remaining);
>+
>+  if (space_remaining > 0 && !is_left) sink->Append(space_remaining, ' ');
>+
>+  string_view piece;
>+  for (AbslCordReader reader(value);
>+       to_write > 0 && reader.ReadFragment(&piece); to_write -= piece.size()) {
>+    if (piece.size() > to_write) piece.remove_suffix(piece.size() - to_write);
>+    sink->Append(piece);
>+  }
>+
>+  if (space_remaining > 0 && is_left) sink->Append(space_remaining, ' ');
>+  return {true};
>+}
>+
>+using IntegralConvertResult =
>+    ConvertResult<Conv::c | Conv::numeric | Conv::star>;
>+using FloatingConvertResult = ConvertResult<Conv::floating>;
>+
>+// Floats.
>+FloatingConvertResult FormatConvertImpl(float v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+FloatingConvertResult FormatConvertImpl(double v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+FloatingConvertResult FormatConvertImpl(long double v,
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+
>+// Chars.
>+IntegralConvertResult FormatConvertImpl(char v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(signed char v,
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(unsigned char v,
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+
>+// Ints.
>+IntegralConvertResult FormatConvertImpl(short v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(unsigned short v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(int v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(unsigned v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(long v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(unsigned long v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(long long v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(unsigned long long v,  // NOLINT
>+                                        const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+IntegralConvertResult FormatConvertImpl(uint128 v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink);
>+template <typename T, enable_if_t<std::is_same<T, bool>::value, int> = 0>
>+IntegralConvertResult FormatConvertImpl(T v, const ConversionSpec& conv,
>+                                        FormatSinkImpl* sink) {
>+  return FormatConvertImpl(static_cast<int>(v), conv, sink);
>+}
>+
>+// We provide this function to help the checker, but it is never defined.
>+// FormatArgImpl will use the underlying Convert functions instead.
>+template <typename T>
>+typename std::enable_if<std::is_enum<T>::value &&
>+                            !HasUserDefinedConvert<T>::value,
>+                        IntegralConvertResult>::type
>+FormatConvertImpl(T v, const ConversionSpec& conv, FormatSinkImpl* sink);
>+
>+template <typename T>
>+ConvertResult<Conv::s> FormatConvertImpl(const StreamedWrapper<T>& v,
>+                                         const ConversionSpec& conv,
>+                                         FormatSinkImpl* out) {
>+  std::ostringstream oss;
>+  oss << v.v_;
>+  if (!oss) return {false};
>+  return str_format_internal::FormatConvertImpl(oss.str(), conv, out);
>+}
>+
>+// Use templates and dependent types to delay evaluation of the function
>+// until after FormatCountCapture is fully defined.
>+struct FormatCountCaptureHelper {
>+  template <class T = int>
>+  static ConvertResult<Conv::n> ConvertHelper(const FormatCountCapture& v,
>+                                              const ConversionSpec& conv,
>+                                              FormatSinkImpl* sink) {
>+    const absl::enable_if_t<sizeof(T) != 0, FormatCountCapture>& v2 = v;
>+
>+    if (conv.conv().id() != str_format_internal::ConversionChar::n)
>+      return {false};
>+    *v2.p_ = static_cast<int>(sink->size());
>+    return {true};
>+  }
>+};
>+
>+template <class T = int>
>+ConvertResult<Conv::n> FormatConvertImpl(const FormatCountCapture& v,
>+                                         const ConversionSpec& conv,
>+                                         FormatSinkImpl* sink) {
>+  return FormatCountCaptureHelper::ConvertHelper(v, conv, sink);
>+}
>+
>+// Helper friend struct to hide implementation details from the public API of
>+// FormatArgImpl.
>+struct FormatArgImplFriend {
>+  template <typename Arg>
>+  static bool ToInt(Arg arg, int* out) {
>+    if (!arg.vtbl_->to_int) return false;
>+    *out = arg.vtbl_->to_int(arg.data_);
>+    return true;
>+  }
>+
>+  template <typename Arg>
>+  static bool Convert(Arg arg, const str_format_internal::ConversionSpec& conv,
>+                      FormatSinkImpl* out) {
>+    return arg.vtbl_->convert(arg.data_, conv, out);
>+  }
>+
>+  template <typename Arg>
>+  static const void* GetVTablePtrForTest(Arg arg) {
>+    return arg.vtbl_;
>+  }
>+};
>+
>+// A type-erased handle to a format argument.
>+class FormatArgImpl {
>+ private:
>+  enum { kInlinedSpace = 8 };
>+
>+  using VoidPtr = str_format_internal::VoidPtr;
>+
>+  union Data {
>+    const void* ptr;
>+    const volatile void* volatile_ptr;
>+    char buf[kInlinedSpace];
>+  };
>+
>+  struct VTable {
>+    bool (*convert)(Data, const str_format_internal::ConversionSpec& conv,
>+                    FormatSinkImpl* out);
>+    int (*to_int)(Data);
>+  };
>+
>+  template <typename T>
>+  struct store_by_value
>+      : std::integral_constant<bool, (sizeof(T) <= kInlinedSpace) &&
>+                                         (std::is_integral<T>::value ||
>+                                          std::is_floating_point<T>::value ||
>+                                          std::is_pointer<T>::value ||
>+                                          std::is_same<VoidPtr, T>::value)> {};
>+
>+  enum StoragePolicy { ByPointer, ByVolatilePointer, ByValue };
>+  template <typename T>
>+  struct storage_policy
>+      : std::integral_constant<StoragePolicy,
>+                               (std::is_volatile<T>::value
>+                                    ? ByVolatilePointer
>+                                    : (store_by_value<T>::value ? ByValue
>+                                                                : ByPointer))> {
>+  };
>+
>+  // An instance of an FormatArgImpl::VTable suitable for 'T'.
>+  template <typename T>
>+  struct TypedVTable;
>+
>+  // To reduce the number of vtables we will decay values before hand.
>+  // Anything with a user-defined Convert will get its own vtable.
>+  // For everything else:
>+  //   - Decay char* and char arrays into `const char*`
>+  //   - Decay any other pointer to `const void*`
>+  //   - Decay all enums to their underlying type.
>+  //   - Decay function pointers to void*.
>+  template <typename T, typename = void>
>+  struct DecayType {
>+    static constexpr bool kHasUserDefined =
>+        str_format_internal::HasUserDefinedConvert<T>::value;
>+    using type = typename std::conditional<
>+        !kHasUserDefined && std::is_convertible<T, const char*>::value,
>+        const char*,
>+        typename std::conditional<!kHasUserDefined &&
>+                                      std::is_convertible<T, VoidPtr>::value,
>+                                  VoidPtr, const T&>::type>::type;
>+  };
>+  template <typename T>
>+  struct DecayType<T,
>+                   typename std::enable_if<
>+                       !str_format_internal::HasUserDefinedConvert<T>::value &&
>+                       std::is_enum<T>::value>::type> {
>+    using type = typename std::underlying_type<T>::type;
>+  };
>+
>+ public:
>+  template <typename T>
>+  explicit FormatArgImpl(const T& value) {
>+    using D = typename DecayType<T>::type;
>+    static_assert(
>+        std::is_same<D, const T&>::value || storage_policy<D>::value == ByValue,
>+        "Decayed types must be stored by value");
>+    Init(static_cast<D>(value));
>+  }
>+
>+ private:
>+  friend struct str_format_internal::FormatArgImplFriend;
>+  template <typename T, StoragePolicy = storage_policy<T>::value>
>+  struct Manager;
>+
>+  template <typename T>
>+  struct Manager<T, ByPointer> {
>+    static Data SetValue(const T& value) {
>+      Data data;
>+      data.ptr = &value;
>+      return data;
>+    }
>+
>+    static const T& Value(Data arg) { return *static_cast<const T*>(arg.ptr); }
>+  };
>+
>+  template <typename T>
>+  struct Manager<T, ByVolatilePointer> {
>+    static Data SetValue(const T& value) {
>+      Data data;
>+      data.volatile_ptr = &value;
>+      return data;
>+    }
>+
>+    static const T& Value(Data arg) {
>+      return *static_cast<const T*>(arg.volatile_ptr);
>+    }
>+  };
>+
>+  template <typename T>
>+  struct Manager<T, ByValue> {
>+    static Data SetValue(const T& value) {
>+      Data data;
>+      memcpy(data.buf, &value, sizeof(value));
>+      return data;
>+    }
>+
>+    static T Value(Data arg) {
>+      T value;
>+      memcpy(&value, arg.buf, sizeof(T));
>+      return value;
>+    }
>+  };
>+
>+  template <typename T>
>+  void Init(const T& value);
>+
>+  template <typename T>
>+  static int ToIntVal(const T& val) {
>+    using CommonType = typename std::conditional<std::is_signed<T>::value,
>+                                                 int64_t, uint64_t>::type;
>+    if (static_cast<CommonType>(val) >
>+        static_cast<CommonType>(std::numeric_limits<int>::max())) {
>+      return std::numeric_limits<int>::max();
>+    } else if (std::is_signed<T>::value &&
>+               static_cast<CommonType>(val) <
>+                   static_cast<CommonType>(std::numeric_limits<int>::min())) {
>+      return std::numeric_limits<int>::min();
>+    }
>+    return static_cast<int>(val);
>+  }
>+
>+  Data data_;
>+  const VTable* vtbl_;
>+};
>+
>+template <typename T>
>+struct FormatArgImpl::TypedVTable {
>+ private:
>+  static bool ConvertImpl(Data arg,
>+                          const str_format_internal::ConversionSpec& conv,
>+                          FormatSinkImpl* out) {
>+    return str_format_internal::FormatConvertImpl(Manager<T>::Value(arg), conv,
>+                                                  out)
>+        .value;
>+  }
>+
>+  template <typename U = T, typename = void>
>+  struct ToIntImpl {
>+    static constexpr int (*value)(Data) = nullptr;
>+  };
>+
>+  template <typename U>
>+  struct ToIntImpl<U,
>+                   typename std::enable_if<std::is_integral<U>::value>::type> {
>+    static int Invoke(Data arg) { return ToIntVal(Manager<T>::Value(arg)); }
>+    static constexpr int (*value)(Data) = &Invoke;
>+  };
>+
>+  template <typename U>
>+  struct ToIntImpl<U, typename std::enable_if<std::is_enum<U>::value>::type> {
>+    static int Invoke(Data arg) {
>+      return ToIntVal(static_cast<typename std::underlying_type<T>::type>(
>+          Manager<T>::Value(arg)));
>+    }
>+    static constexpr int (*value)(Data) = &Invoke;
>+  };
>+
>+ public:
>+  static constexpr VTable value{&ConvertImpl, ToIntImpl<>::value};
>+};
>+
>+template <typename T>
>+constexpr FormatArgImpl::VTable FormatArgImpl::TypedVTable<T>::value;
>+
>+template <typename T>
>+void FormatArgImpl::Init(const T& value) {
>+  data_ = Manager<T>::SetValue(value);
>+  vtbl_ = &TypedVTable<T>::value;
>+}
>+
>+extern template struct FormatArgImpl::TypedVTable<str_format_internal::VoidPtr>;
>+
>+extern template struct FormatArgImpl::TypedVTable<bool>;
>+extern template struct FormatArgImpl::TypedVTable<char>;
>+extern template struct FormatArgImpl::TypedVTable<signed char>;
>+extern template struct FormatArgImpl::TypedVTable<unsigned char>;
>+extern template struct FormatArgImpl::TypedVTable<short>;           // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<unsigned short>;  // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<int>;
>+extern template struct FormatArgImpl::TypedVTable<unsigned>;
>+extern template struct FormatArgImpl::TypedVTable<long>;           // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<unsigned long>;  // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<long long>;      // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<
>+    unsigned long long>;  // NOLINT
>+extern template struct FormatArgImpl::TypedVTable<uint128>;
>+
>+extern template struct FormatArgImpl::TypedVTable<float>;
>+extern template struct FormatArgImpl::TypedVTable<double>;
>+extern template struct FormatArgImpl::TypedVTable<long double>;
>+
>+extern template struct FormatArgImpl::TypedVTable<const char*>;
>+extern template struct FormatArgImpl::TypedVTable<std::string>;
>+extern template struct FormatArgImpl::TypedVTable<string_view>;
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_ARG_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..83d59048ea27a4f5d802bd6d6f84a1823ff6e209
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/arg_test.cc
>@@ -0,0 +1,111 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+#include "absl/strings/internal/str_format/arg.h"
>+
>+#include <ostream>
>+#include <string>
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_format.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+class FormatArgImplTest : public ::testing::Test {
>+ public:
>+  enum Color { kRed, kGreen, kBlue };
>+
>+  static const char *hi() { return "hi"; }
>+};
>+
>+TEST_F(FormatArgImplTest, ToInt) {
>+  int out = 0;
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(1), &out));
>+  EXPECT_EQ(1, out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(-1), &out));
>+  EXPECT_EQ(-1, out);
>+  EXPECT_TRUE(
>+      FormatArgImplFriend::ToInt(FormatArgImpl(static_cast<char>(64)), &out));
>+  EXPECT_EQ(64, out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(
>+      FormatArgImpl(static_cast<unsigned long long>(123456)), &out));  // NOLINT
>+  EXPECT_EQ(123456, out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(
>+      FormatArgImpl(static_cast<unsigned long long>(  // NOLINT
>+                        std::numeric_limits<int>::max()) +
>+                    1),
>+      &out));
>+  EXPECT_EQ(std::numeric_limits<int>::max(), out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(
>+      FormatArgImpl(static_cast<long long>(  // NOLINT
>+                        std::numeric_limits<int>::min()) -
>+                    10),
>+      &out));
>+  EXPECT_EQ(std::numeric_limits<int>::min(), out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(false), &out));
>+  EXPECT_EQ(0, out);
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(true), &out));
>+  EXPECT_EQ(1, out);
>+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(2.2), &out));
>+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(3.2f), &out));
>+  EXPECT_FALSE(FormatArgImplFriend::ToInt(
>+      FormatArgImpl(static_cast<int *>(nullptr)), &out));
>+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(hi()), &out));
>+  EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl("hi"), &out));
>+  EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(kBlue), &out));
>+  EXPECT_EQ(2, out);
>+}
>+
>+extern const char kMyArray[];
>+
>+TEST_F(FormatArgImplTest, CharArraysDecayToCharPtr) {
>+  const char* a = "";
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)),
>+            FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl("")));
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)),
>+            FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl("A")));
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)),
>+            FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl("ABC")));
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)),
>+            FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(kMyArray)));
>+}
>+
>+TEST_F(FormatArgImplTest, OtherPtrDecayToVoidPtr) {
>+  auto expected = FormatArgImplFriend::GetVTablePtrForTest(
>+      FormatArgImpl(static_cast<void *>(nullptr)));
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(
>+                FormatArgImpl(static_cast<int *>(nullptr))),
>+            expected);
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(
>+                FormatArgImpl(static_cast<volatile int *>(nullptr))),
>+            expected);
>+
>+  auto p = static_cast<void (*)()>([] {});
>+  EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(p)),
>+            expected);
>+}
>+
>+TEST_F(FormatArgImplTest, WorksWithCharArraysOfUnknownSize) {
>+  std::string s;
>+  FormatSinkImpl sink(&s);
>+  ConversionSpec conv;
>+  conv.set_conv(ConversionChar::FromChar('s'));
>+  conv.set_flags(Flags());
>+  conv.set_width(-1);
>+  conv.set_precision(-1);
>+  EXPECT_TRUE(
>+      FormatArgImplFriend::Convert(FormatArgImpl(kMyArray), conv, &sink));
>+  sink.Flush();
>+  EXPECT_EQ("ABCDE", s);
>+}
>+const char kMyArray[] = "ABCDE";
>+
>+}  // namespace
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..33e8641558ab86f3e892addeecd9a6def8b40a97
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.cc
>@@ -0,0 +1,232 @@
>+#include "absl/strings/internal/str_format/bind.h"
>+
>+#include <cerrno>
>+#include <limits>
>+#include <sstream>
>+#include <string>
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+namespace {
>+
>+inline bool BindFromPosition(int position, int* value,
>+                             absl::Span<const FormatArgImpl> pack) {
>+  assert(position > 0);
>+  if (static_cast<size_t>(position) > pack.size()) {
>+    return false;
>+  }
>+  // -1 because positions are 1-based
>+  return FormatArgImplFriend::ToInt(pack[position - 1], value);
>+}
>+
>+class ArgContext {
>+ public:
>+  explicit ArgContext(absl::Span<const FormatArgImpl> pack) : pack_(pack) {}
>+
>+  // Fill 'bound' with the results of applying the context's argument pack
>+  // to the specified 'props'. We synthesize a BoundConversion by
>+  // lining up a UnboundConversion with a user argument. We also
>+  // resolve any '*' specifiers for width and precision, so after
>+  // this call, 'bound' has all the information it needs to be formatted.
>+  // Returns false on failure.
>+  bool Bind(const UnboundConversion *props, BoundConversion *bound);
>+
>+ private:
>+  absl::Span<const FormatArgImpl> pack_;
>+};
>+
>+inline bool ArgContext::Bind(const UnboundConversion* unbound,
>+                             BoundConversion* bound) {
>+  const FormatArgImpl* arg = nullptr;
>+  int arg_position = unbound->arg_position;
>+  if (static_cast<size_t>(arg_position - 1) >= pack_.size()) return false;
>+  arg = &pack_[arg_position - 1];  // 1-based
>+
>+  if (!unbound->flags.basic) {
>+    int width = unbound->width.value();
>+    bool force_left = false;
>+    if (unbound->width.is_from_arg()) {
>+      if (!BindFromPosition(unbound->width.get_from_arg(), &width, pack_))
>+        return false;
>+      if (width < 0) {
>+        // "A negative field width is taken as a '-' flag followed by a
>+        // positive field width."
>+        force_left = true;
>+        width = -width;
>+      }
>+    }
>+
>+    int precision = unbound->precision.value();
>+    if (unbound->precision.is_from_arg()) {
>+      if (!BindFromPosition(unbound->precision.get_from_arg(), &precision,
>+                            pack_))
>+        return false;
>+    }
>+
>+    bound->set_width(width);
>+    bound->set_precision(precision);
>+    bound->set_flags(unbound->flags);
>+    if (force_left)
>+      bound->set_left(true);
>+  } else {
>+    bound->set_flags(unbound->flags);
>+    bound->set_width(-1);
>+    bound->set_precision(-1);
>+  }
>+
>+  bound->set_length_mod(unbound->length_mod);
>+  bound->set_conv(unbound->conv);
>+  bound->set_arg(arg);
>+  return true;
>+}
>+
>+template <typename Converter>
>+class ConverterConsumer {
>+ public:
>+  ConverterConsumer(Converter converter, absl::Span<const FormatArgImpl> pack)
>+      : converter_(converter), arg_context_(pack) {}
>+
>+  bool Append(string_view s) {
>+    converter_.Append(s);
>+    return true;
>+  }
>+  bool ConvertOne(const UnboundConversion& conv, string_view conv_string) {
>+    BoundConversion bound;
>+    if (!arg_context_.Bind(&conv, &bound)) return false;
>+    return converter_.ConvertOne(bound, conv_string);
>+  }
>+
>+ private:
>+  Converter converter_;
>+  ArgContext arg_context_;
>+};
>+
>+template <typename Converter>
>+bool ConvertAll(const UntypedFormatSpecImpl& format,
>+                absl::Span<const FormatArgImpl> args,
>+                const Converter& converter) {
>+  const ParsedFormatBase* pc = format.parsed_conversion();
>+  if (pc)
>+    return pc->ProcessFormat(ConverterConsumer<Converter>(converter, args));
>+
>+  return ParseFormatString(format.str(),
>+                           ConverterConsumer<Converter>(converter, args));
>+}
>+
>+class DefaultConverter {
>+ public:
>+  explicit DefaultConverter(FormatSinkImpl* sink) : sink_(sink) {}
>+
>+  void Append(string_view s) const { sink_->Append(s); }
>+
>+  bool ConvertOne(const BoundConversion& bound, string_view /*conv*/) const {
>+    return FormatArgImplFriend::Convert(*bound.arg(), bound, sink_);
>+  }
>+
>+ private:
>+  FormatSinkImpl* sink_;
>+};
>+
>+class SummarizingConverter {
>+ public:
>+  explicit SummarizingConverter(FormatSinkImpl* sink) : sink_(sink) {}
>+
>+  void Append(string_view s) const { sink_->Append(s); }
>+
>+  bool ConvertOne(const BoundConversion& bound, string_view /*conv*/) const {
>+    UntypedFormatSpecImpl spec("%d");
>+
>+    std::ostringstream ss;
>+    ss << "{" << Streamable(spec, {*bound.arg()}) << ":" << bound.flags();
>+    if (bound.width() >= 0) ss << bound.width();
>+    if (bound.precision() >= 0) ss << "." << bound.precision();
>+    ss << bound.length_mod() << bound.conv() << "}";
>+    Append(ss.str());
>+    return true;
>+  }
>+
>+ private:
>+  FormatSinkImpl* sink_;
>+};
>+
>+}  // namespace
>+
>+bool BindWithPack(const UnboundConversion* props,
>+                  absl::Span<const FormatArgImpl> pack,
>+                  BoundConversion* bound) {
>+  return ArgContext(pack).Bind(props, bound);
>+}
>+
>+std::string Summarize(const UntypedFormatSpecImpl& format,
>+                 absl::Span<const FormatArgImpl> args) {
>+  typedef SummarizingConverter Converter;
>+  std::string out;
>+  {
>+    // inner block to destroy sink before returning out. It ensures a last
>+    // flush.
>+    FormatSinkImpl sink(&out);
>+    if (!ConvertAll(format, args, Converter(&sink))) {
>+      sink.Flush();
>+      out.clear();
>+    }
>+  }
>+  return out;
>+}
>+
>+bool FormatUntyped(FormatRawSinkImpl raw_sink,
>+                   const UntypedFormatSpecImpl& format,
>+                   absl::Span<const FormatArgImpl> args) {
>+  FormatSinkImpl sink(raw_sink);
>+  using Converter = DefaultConverter;
>+  if (!ConvertAll(format, args, Converter(&sink))) {
>+    sink.Flush();
>+    return false;
>+  }
>+  return true;
>+}
>+
>+std::ostream& Streamable::Print(std::ostream& os) const {
>+  if (!FormatUntyped(&os, format_, args_)) os.setstate(std::ios::failbit);
>+  return os;
>+}
>+
>+std::string& AppendPack(std::string* out, const UntypedFormatSpecImpl& format,
>+                   absl::Span<const FormatArgImpl> args) {
>+  size_t orig = out->size();
>+  if (!FormatUntyped(out, format, args)) out->resize(orig);
>+  return *out;
>+}
>+
>+int FprintF(std::FILE* output, const UntypedFormatSpecImpl& format,
>+            absl::Span<const FormatArgImpl> args) {
>+  FILERawSink sink(output);
>+  if (!FormatUntyped(&sink, format, args)) {
>+    errno = EINVAL;
>+    return -1;
>+  }
>+  if (sink.error()) {
>+    errno = sink.error();
>+    return -1;
>+  }
>+  if (sink.count() > std::numeric_limits<int>::max()) {
>+    errno = EFBIG;
>+    return -1;
>+  }
>+  return static_cast<int>(sink.count());
>+}
>+
>+int SnprintF(char* output, size_t size, const UntypedFormatSpecImpl& format,
>+             absl::Span<const FormatArgImpl> args) {
>+  BufferRawSink sink(output, size ? size - 1 : 0);
>+  if (!FormatUntyped(&sink, format, args)) {
>+    errno = EINVAL;
>+    return -1;
>+  }
>+  size_t total = sink.total_written();
>+  if (size) output[std::min(total, size - 1)] = 0;
>+  return static_cast<int>(total);
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..4008611211cfe6053c51af0648a051354bdf81a2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind.h
>@@ -0,0 +1,189 @@
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_BIND_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_BIND_H_
>+
>+#include <array>
>+#include <cstdio>
>+#include <sstream>
>+#include <string>
>+
>+#include "absl/base/port.h"
>+#include "absl/container/inlined_vector.h"
>+#include "absl/strings/internal/str_format/arg.h"
>+#include "absl/strings/internal/str_format/checker.h"
>+#include "absl/strings/internal/str_format/parser.h"
>+#include "absl/types/span.h"
>+
>+namespace absl {
>+
>+class UntypedFormatSpec;
>+
>+namespace str_format_internal {
>+
>+class BoundConversion : public ConversionSpec {
>+ public:
>+  const FormatArgImpl* arg() const { return arg_; }
>+  void set_arg(const FormatArgImpl* a) { arg_ = a; }
>+
>+ private:
>+  const FormatArgImpl* arg_;
>+};
>+
>+// This is the type-erased class that the implementation uses.
>+class UntypedFormatSpecImpl {
>+ public:
>+  UntypedFormatSpecImpl() = delete;
>+
>+  explicit UntypedFormatSpecImpl(string_view s) : str_(s), pc_() {}
>+  explicit UntypedFormatSpecImpl(
>+      const str_format_internal::ParsedFormatBase* pc)
>+      : pc_(pc) {}
>+  string_view str() const { return str_; }
>+  const str_format_internal::ParsedFormatBase* parsed_conversion() const {
>+    return pc_;
>+  }
>+
>+  template <typename T>
>+  static const UntypedFormatSpecImpl& Extract(const T& s) {
>+    return s.spec_;
>+  }
>+
>+ private:
>+  string_view str_;
>+  const str_format_internal::ParsedFormatBase* pc_;
>+};
>+
>+template <typename T, typename...>
>+struct MakeDependent {
>+  using type = T;
>+};
>+
>+// Implicitly convertible from `const char*`, `string_view`, and the
>+// `ExtendedParsedFormat` type. This abstraction allows all format functions to
>+// operate on any without providing too many overloads.
>+template <typename... Args>
>+class FormatSpecTemplate
>+    : public MakeDependent<UntypedFormatSpec, Args...>::type {
>+  using Base = typename MakeDependent<UntypedFormatSpec, Args...>::type;
>+
>+ public:
>+#if ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+  // Honeypot overload for when the std::string is not constexpr.
>+  // We use the 'unavailable' attribute to give a better compiler error than
>+  // just 'method is deleted'.
>+  FormatSpecTemplate(...)  // NOLINT
>+      __attribute__((unavailable("Format std::string is not constexpr.")));
>+
>+  // Honeypot overload for when the format is constexpr and invalid.
>+  // We use the 'unavailable' attribute to give a better compiler error than
>+  // just 'method is deleted'.
>+  // To avoid checking the format twice, we just check that the format is
>+  // constexpr. If is it valid, then the overload below will kick in.
>+  // We add the template here to make this overload have lower priority.
>+  template <typename = void>
>+  FormatSpecTemplate(const char* s)  // NOLINT
>+      __attribute__((
>+          enable_if(str_format_internal::EnsureConstexpr(s), "constexpr trap"),
>+          unavailable(
>+              "Format specified does not match the arguments passed.")));
>+
>+  template <typename T = void>
>+  FormatSpecTemplate(string_view s)  // NOLINT
>+      __attribute__((enable_if(str_format_internal::EnsureConstexpr(s),
>+                               "constexpr trap"))) {
>+    static_assert(sizeof(T*) == 0,
>+                  "Format specified does not match the arguments passed.");
>+  }
>+
>+  // Good format overload.
>+  FormatSpecTemplate(const char* s)  // NOLINT
>+      __attribute__((enable_if(ValidFormatImpl<ArgumentToConv<Args>()...>(s),
>+                               "bad format trap")))
>+      : Base(s) {}
>+
>+  FormatSpecTemplate(string_view s)  // NOLINT
>+      __attribute__((enable_if(ValidFormatImpl<ArgumentToConv<Args>()...>(s),
>+                               "bad format trap")))
>+      : Base(s) {}
>+
>+#else  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+  FormatSpecTemplate(const char* s) : Base(s) {}  // NOLINT
>+  FormatSpecTemplate(string_view s) : Base(s) {}  // NOLINT
>+
>+#endif  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+  template <Conv... C, typename = typename std::enable_if<
>+                           sizeof...(C) == sizeof...(Args) &&
>+                           AllOf(Contains(ArgumentToConv<Args>(),
>+                                          C)...)>::type>
>+  FormatSpecTemplate(const ExtendedParsedFormat<C...>& pc)  // NOLINT
>+      : Base(&pc) {}
>+};
>+
>+template <typename... Args>
>+struct FormatSpecDeductionBarrier {
>+  using type = FormatSpecTemplate<Args...>;
>+};
>+
>+class Streamable {
>+ public:
>+  Streamable(const UntypedFormatSpecImpl& format,
>+             absl::Span<const FormatArgImpl> args)
>+      : format_(format), args_(args.begin(), args.end()) {}
>+
>+  std::ostream& Print(std::ostream& os) const;
>+
>+  friend std::ostream& operator<<(std::ostream& os, const Streamable& l) {
>+    return l.Print(os);
>+  }
>+
>+ private:
>+  const UntypedFormatSpecImpl& format_;
>+  absl::InlinedVector<FormatArgImpl, 4> args_;
>+};
>+
>+// for testing
>+std::string Summarize(const UntypedFormatSpecImpl& format,
>+                 absl::Span<const FormatArgImpl> args);
>+bool BindWithPack(const UnboundConversion* props,
>+                  absl::Span<const FormatArgImpl> pack, BoundConversion* bound);
>+
>+bool FormatUntyped(FormatRawSinkImpl raw_sink,
>+                   const UntypedFormatSpecImpl& format,
>+                   absl::Span<const FormatArgImpl> args);
>+
>+std::string& AppendPack(std::string* out, const UntypedFormatSpecImpl& format,
>+                   absl::Span<const FormatArgImpl> args);
>+
>+inline std::string FormatPack(const UntypedFormatSpecImpl& format,
>+                         absl::Span<const FormatArgImpl> args) {
>+  std::string out;
>+  AppendPack(&out, format, args);
>+  return out;
>+}
>+
>+int FprintF(std::FILE* output, const UntypedFormatSpecImpl& format,
>+            absl::Span<const FormatArgImpl> args);
>+int SnprintF(char* output, size_t size, const UntypedFormatSpecImpl& format,
>+             absl::Span<const FormatArgImpl> args);
>+
>+// Returned by Streamed(v). Converts via '%s' to the std::string created
>+// by std::ostream << v.
>+template <typename T>
>+class StreamedWrapper {
>+ public:
>+  explicit StreamedWrapper(const T& v) : v_(v) { }
>+
>+ private:
>+  template <typename S>
>+  friend ConvertResult<Conv::s> FormatConvertImpl(const StreamedWrapper<S>& v,
>+                                                  const ConversionSpec& conv,
>+                                                  FormatSinkImpl* out);
>+  const T& v_;
>+};
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_BIND_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..47575739ba130024bdff076ff0388cfb3a687740
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/bind_test.cc
>@@ -0,0 +1,131 @@
>+#include "absl/strings/internal/str_format/bind.h"
>+
>+#include <string.h>
>+
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+template <typename T, size_t N>
>+size_t ArraySize(T (&)[N]) {
>+  return N;
>+}
>+
>+class FormatBindTest : public ::testing::Test {
>+ public:
>+  bool Extract(const char *s, UnboundConversion *props, int *next) const {
>+    absl::string_view src = s;
>+    return ConsumeUnboundConversion(&src, props, next) && src.empty();
>+  }
>+};
>+
>+TEST_F(FormatBindTest, BindSingle) {
>+  struct Expectation {
>+    int line;
>+    const char *fmt;
>+    int ok_phases;
>+    const FormatArgImpl *arg;
>+    int width;
>+    int precision;
>+    int next_arg;
>+  };
>+  const int no = -1;
>+  const int ia[] = { 10, 20, 30, 40};
>+  const FormatArgImpl args[] = {FormatArgImpl(ia[0]), FormatArgImpl(ia[1]),
>+                                FormatArgImpl(ia[2]), FormatArgImpl(ia[3])};
>+#pragma GCC diagnostic push
>+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
>+  const Expectation kExpect[] = {
>+    {__LINE__, "d",          2, &args[0], no, no, 2},
>+    {__LINE__, "4d",         2, &args[0],  4, no, 2},
>+    {__LINE__, ".5d",        2, &args[0], no,  5, 2},
>+    {__LINE__, "4.5d",       2, &args[0],  4,  5, 2},
>+    {__LINE__, "*d",         2, &args[1], 10, no, 3},
>+    {__LINE__, ".*d",        2, &args[1], no, 10, 3},
>+    {__LINE__, "*.*d",       2, &args[2], 10, 20, 4},
>+    {__LINE__, "1$d",        2, &args[0], no, no, 0},
>+    {__LINE__, "2$d",        2, &args[1], no, no, 0},
>+    {__LINE__, "3$d",        2, &args[2], no, no, 0},
>+    {__LINE__, "4$d",        2, &args[3], no, no, 0},
>+    {__LINE__, "2$*1$d",     2, &args[1], 10, no, 0},
>+    {__LINE__, "2$*2$d",     2, &args[1], 20, no, 0},
>+    {__LINE__, "2$*3$d",     2, &args[1], 30, no, 0},
>+    {__LINE__, "2$.*1$d",    2, &args[1], no, 10, 0},
>+    {__LINE__, "2$.*2$d",    2, &args[1], no, 20, 0},
>+    {__LINE__, "2$.*3$d",    2, &args[1], no, 30, 0},
>+    {__LINE__, "2$*3$.*1$d", 2, &args[1], 30, 10, 0},
>+    {__LINE__, "2$*2$.*2$d", 2, &args[1], 20, 20, 0},
>+    {__LINE__, "2$*1$.*3$d", 2, &args[1], 10, 30, 0},
>+    {__LINE__, "2$*3$.*1$d", 2, &args[1], 30, 10, 0},
>+    {__LINE__, "1$*d",       0},  // indexed, then positional
>+    {__LINE__, "*2$d",       0},  // positional, then indexed
>+    {__LINE__, "6$d",        1},  // arg position out of bounds
>+    {__LINE__, "1$6$d",      0},  // width position incorrectly specified
>+    {__LINE__, "1$.6$d",     0},  // precision position incorrectly specified
>+    {__LINE__, "1$*6$d",     1},  // width position out of bounds
>+    {__LINE__, "1$.*6$d",    1},  // precision position out of bounds
>+  };
>+#pragma GCC diagnostic pop
>+  for (const Expectation &e : kExpect) {
>+    SCOPED_TRACE(e.line);
>+    SCOPED_TRACE(e.fmt);
>+    UnboundConversion props;
>+    BoundConversion bound;
>+    int ok_phases = 0;
>+    int next = 0;
>+    if (Extract(e.fmt, &props, &next)) {
>+      ++ok_phases;
>+      if (BindWithPack(&props, args, &bound)) {
>+        ++ok_phases;
>+      }
>+    }
>+    EXPECT_EQ(e.ok_phases, ok_phases);
>+    if (e.ok_phases < 2) continue;
>+    if (e.arg != nullptr) {
>+      EXPECT_EQ(e.arg, bound.arg());
>+    }
>+    EXPECT_EQ(e.width, bound.width());
>+    EXPECT_EQ(e.precision, bound.precision());
>+  }
>+}
>+
>+TEST_F(FormatBindTest, FormatPack) {
>+  struct Expectation {
>+    int line;
>+    const char *fmt;
>+    const char *summary;
>+  };
>+  const int ia[] = { 10, 20, 30, 40, -10 };
>+  const FormatArgImpl args[] = {FormatArgImpl(ia[0]), FormatArgImpl(ia[1]),
>+                                FormatArgImpl(ia[2]), FormatArgImpl(ia[3]),
>+                                FormatArgImpl(ia[4])};
>+  const Expectation kExpect[] = {
>+    {__LINE__, "a%4db%dc", "a{10:4d}b{20:d}c"},
>+    {__LINE__, "a%.4db%dc", "a{10:.4d}b{20:d}c"},
>+    {__LINE__, "a%4.5db%dc", "a{10:4.5d}b{20:d}c"},
>+    {__LINE__, "a%db%4.5dc", "a{10:d}b{20:4.5d}c"},
>+    {__LINE__, "a%db%*.*dc", "a{10:d}b{40:20.30d}c"},
>+    {__LINE__, "a%.*fb", "a{20:.10f}b"},
>+    {__LINE__, "a%1$db%2$*3$.*4$dc", "a{10:d}b{20:30.40d}c"},
>+    {__LINE__, "a%4$db%3$*2$.*1$dc", "a{40:d}b{30:20.10d}c"},
>+    {__LINE__, "a%04ldb", "a{10:04ld}b"},
>+    {__LINE__, "a%-#04lldb", "a{10:-#04lld}b"},
>+    {__LINE__, "a%1$*5$db", "a{10:-10d}b"},
>+    {__LINE__, "a%1$.*5$db", "a{10:d}b"},
>+  };
>+  for (const Expectation &e : kExpect) {
>+    absl::string_view fmt = e.fmt;
>+    SCOPED_TRACE(e.line);
>+    SCOPED_TRACE(e.fmt);
>+    UntypedFormatSpecImpl format(fmt);
>+    EXPECT_EQ(e.summary,
>+              str_format_internal::Summarize(format, absl::MakeSpan(args)))
>+        << "line:" << e.line;
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8b594f2d5cc6ffcc322d99c775bdd1f3b5da2eb8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker.h
>@@ -0,0 +1,325 @@
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_CHECKER_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_CHECKER_H_
>+
>+#include "absl/strings/internal/str_format/arg.h"
>+#include "absl/strings/internal/str_format/extension.h"
>+
>+// Compile time check support for entry points.
>+
>+#ifndef ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+#if defined(__clang__) && !defined(__native_client__)
>+#if __has_attribute(enable_if)
>+#define ABSL_INTERNAL_ENABLE_FORMAT_CHECKER 1
>+#endif  // __has_attribute(enable_if)
>+#endif  // defined(__clang__) && !defined(__native_client__)
>+#endif  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+constexpr bool AllOf() { return true; }
>+
>+template <typename... T>
>+constexpr bool AllOf(bool b, T... t) {
>+  return b && AllOf(t...);
>+}
>+
>+template <typename Arg>
>+constexpr Conv ArgumentToConv() {
>+  return decltype(str_format_internal::FormatConvertImpl(
>+      std::declval<const Arg&>(), std::declval<const ConversionSpec&>(),
>+      std::declval<FormatSinkImpl*>()))::kConv;
>+}
>+
>+#if ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+constexpr bool ContainsChar(const char* chars, char c) {
>+  return *chars == c || (*chars && ContainsChar(chars + 1, c));
>+}
>+
>+// A constexpr compatible list of Convs.
>+struct ConvList {
>+  const Conv* array;
>+  int count;
>+
>+  // We do the bound check here to avoid having to do it on the callers.
>+  // Returning an empty Conv has the same effect as short circuiting because it
>+  // will never match any conversion.
>+  constexpr Conv operator[](int i) const {
>+    return i < count ? array[i] : Conv{};
>+  }
>+
>+  constexpr ConvList without_front() const {
>+    return count != 0 ? ConvList{array + 1, count - 1} : *this;
>+  }
>+};
>+
>+template <size_t count>
>+struct ConvListT {
>+  // Make sure the array has size > 0.
>+  Conv list[count ? count : 1];
>+};
>+
>+constexpr char GetChar(string_view str, size_t index) {
>+  return index < str.size() ? str[index] : char{};
>+}
>+
>+constexpr string_view ConsumeFront(string_view str, size_t len = 1) {
>+  return len <= str.size() ? string_view(str.data() + len, str.size() - len)
>+                           : string_view();
>+}
>+
>+constexpr string_view ConsumeAnyOf(string_view format, const char* chars) {
>+  return ContainsChar(chars, GetChar(format, 0))
>+             ? ConsumeAnyOf(ConsumeFront(format), chars)
>+             : format;
>+}
>+
>+constexpr bool IsDigit(char c) { return c >= '0' && c <= '9'; }
>+
>+// Helper class for the ParseDigits function.
>+// It encapsulates the two return values we need there.
>+struct Integer {
>+  string_view format;
>+  int value;
>+
>+  // If the next character is a '$', consume it.
>+  // Otherwise, make `this` an invalid positional argument.
>+  constexpr Integer ConsumePositionalDollar() const {
>+    return GetChar(format, 0) == '$' ? Integer{ConsumeFront(format), value}
>+                                     : Integer{format, 0};
>+  }
>+};
>+
>+constexpr Integer ParseDigits(string_view format, int value = 0) {
>+  return IsDigit(GetChar(format, 0))
>+             ? ParseDigits(ConsumeFront(format),
>+                           10 * value + GetChar(format, 0) - '0')
>+             : Integer{format, value};
>+}
>+
>+// Parse digits for a positional argument.
>+// The parsing also consumes the '$'.
>+constexpr Integer ParsePositional(string_view format) {
>+  return ParseDigits(format).ConsumePositionalDollar();
>+}
>+
>+// Parses a single conversion specifier.
>+// See ConvParser::Run() for post conditions.
>+class ConvParser {
>+  constexpr ConvParser SetFormat(string_view format) const {
>+    return ConvParser(format, args_, error_, arg_position_, is_positional_);
>+  }
>+
>+  constexpr ConvParser SetArgs(ConvList args) const {
>+    return ConvParser(format_, args, error_, arg_position_, is_positional_);
>+  }
>+
>+  constexpr ConvParser SetError(bool error) const {
>+    return ConvParser(format_, args_, error_ || error, arg_position_,
>+                      is_positional_);
>+  }
>+
>+  constexpr ConvParser SetArgPosition(int arg_position) const {
>+    return ConvParser(format_, args_, error_, arg_position, is_positional_);
>+  }
>+
>+  // Consumes the next arg and verifies that it matches `conv`.
>+  // `error_` is set if there is no next arg or if it doesn't match `conv`.
>+  constexpr ConvParser ConsumeNextArg(char conv) const {
>+    return SetArgs(args_.without_front()).SetError(!Contains(args_[0], conv));
>+  }
>+
>+  // Verify that positional argument `i.value` matches `conv`.
>+  // `error_` is set if `i.value` is not a valid argument or if it doesn't
>+  // match.
>+  constexpr ConvParser VerifyPositional(Integer i, char conv) const {
>+    return SetFormat(i.format).SetError(!Contains(args_[i.value - 1], conv));
>+  }
>+
>+  // Parse the position of the arg and store it in `arg_position_`.
>+  constexpr ConvParser ParseArgPosition(Integer arg) const {
>+    return SetFormat(arg.format).SetArgPosition(arg.value);
>+  }
>+
>+  // Consume the flags.
>+  constexpr ConvParser ParseFlags() const {
>+    return SetFormat(ConsumeAnyOf(format_, "-+ #0"));
>+  }
>+
>+  // Consume the width.
>+  // If it is '*', we verify that it matches `args_`. `error_` is set if it
>+  // doesn't match.
>+  constexpr ConvParser ParseWidth() const {
>+    return IsDigit(GetChar(format_, 0))
>+               ? SetFormat(ParseDigits(format_).format)
>+               : GetChar(format_, 0) == '*'
>+                     ? is_positional_
>+                           ? VerifyPositional(
>+                                 ParsePositional(ConsumeFront(format_)), '*')
>+                           : SetFormat(ConsumeFront(format_))
>+                                 .ConsumeNextArg('*')
>+                     : *this;
>+  }
>+
>+  // Consume the precision.
>+  // If it is '*', we verify that it matches `args_`. `error_` is set if it
>+  // doesn't match.
>+  constexpr ConvParser ParsePrecision() const {
>+    return GetChar(format_, 0) != '.'
>+               ? *this
>+               : GetChar(format_, 1) == '*'
>+                     ? is_positional_
>+                           ? VerifyPositional(
>+                                 ParsePositional(ConsumeFront(format_, 2)), '*')
>+                           : SetFormat(ConsumeFront(format_, 2))
>+                                 .ConsumeNextArg('*')
>+                     : SetFormat(ParseDigits(ConsumeFront(format_)).format);
>+  }
>+
>+  // Consume the length characters.
>+  constexpr ConvParser ParseLength() const {
>+    return SetFormat(ConsumeAnyOf(format_, "lLhjztq"));
>+  }
>+
>+  // Consume the conversion character and verify that it matches `args_`.
>+  // `error_` is set if it doesn't match.
>+  constexpr ConvParser ParseConversion() const {
>+    return is_positional_
>+               ? VerifyPositional({ConsumeFront(format_), arg_position_},
>+                                  GetChar(format_, 0))
>+               : ConsumeNextArg(GetChar(format_, 0))
>+                     .SetFormat(ConsumeFront(format_));
>+  }
>+
>+  constexpr ConvParser(string_view format, ConvList args, bool error,
>+                       int arg_position, bool is_positional)
>+      : format_(format),
>+        args_(args),
>+        error_(error),
>+        arg_position_(arg_position),
>+        is_positional_(is_positional) {}
>+
>+ public:
>+  constexpr ConvParser(string_view format, ConvList args, bool is_positional)
>+      : format_(format),
>+        args_(args),
>+        error_(false),
>+        arg_position_(0),
>+        is_positional_(is_positional) {}
>+
>+  // Consume the whole conversion specifier.
>+  // `format()` will be set to the character after the conversion character.
>+  // `error()` will be set if any of the arguments do not match.
>+  constexpr ConvParser Run() const {
>+    return (is_positional_ ? ParseArgPosition(ParsePositional(format_)) : *this)
>+        .ParseFlags()
>+        .ParseWidth()
>+        .ParsePrecision()
>+        .ParseLength()
>+        .ParseConversion();
>+  }
>+
>+  constexpr string_view format() const { return format_; }
>+  constexpr ConvList args() const { return args_; }
>+  constexpr bool error() const { return error_; }
>+  constexpr bool is_positional() const { return is_positional_; }
>+
>+ private:
>+  string_view format_;
>+  // Current list of arguments. If we are not in positional mode we will consume
>+  // from the front.
>+  ConvList args_;
>+  bool error_;
>+  // Holds the argument position of the conversion character, if we are in
>+  // positional mode. Otherwise, it is unspecified.
>+  int arg_position_;
>+  // Whether we are in positional mode.
>+  // It changes the behavior of '*' and where to find the converted argument.
>+  bool is_positional_;
>+};
>+
>+// Parses a whole format expression.
>+// See FormatParser::Run().
>+class FormatParser {
>+  static constexpr bool FoundPercent(string_view format) {
>+    return format.empty() ||
>+           (GetChar(format, 0) == '%' && GetChar(format, 1) != '%');
>+  }
>+
>+  // We use an inner function to increase the recursion limit.
>+  // The inner function consumes up to `limit` characters on every run.
>+  // This increases the limit from 512 to ~512*limit.
>+  static constexpr string_view ConsumeNonPercentInner(string_view format,
>+                                                      int limit = 20) {
>+    return FoundPercent(format) || !limit
>+               ? format
>+               : ConsumeNonPercentInner(
>+                     ConsumeFront(format, GetChar(format, 0) == '%' &&
>+                                                  GetChar(format, 1) == '%'
>+                                              ? 2
>+                                              : 1),
>+                     limit - 1);
>+  }
>+
>+  // Consume characters until the next conversion spec %.
>+  // It skips %%.
>+  static constexpr string_view ConsumeNonPercent(string_view format) {
>+    return FoundPercent(format)
>+               ? format
>+               : ConsumeNonPercent(ConsumeNonPercentInner(format));
>+  }
>+
>+  static constexpr bool IsPositional(string_view format) {
>+    return IsDigit(GetChar(format, 0)) ? IsPositional(ConsumeFront(format))
>+                                       : GetChar(format, 0) == '$';
>+  }
>+
>+  constexpr bool RunImpl(bool is_positional) const {
>+    // In non-positional mode we require all arguments to be consumed.
>+    // In positional mode just reaching the end of the format without errors is
>+    // enough.
>+    return (format_.empty() && (is_positional || args_.count == 0)) ||
>+           (!format_.empty() &&
>+            ValidateArg(
>+                ConvParser(ConsumeFront(format_), args_, is_positional).Run()));
>+  }
>+
>+  constexpr bool ValidateArg(ConvParser conv) const {
>+    return !conv.error() && FormatParser(conv.format(), conv.args())
>+                                .RunImpl(conv.is_positional());
>+  }
>+
>+ public:
>+  constexpr FormatParser(string_view format, ConvList args)
>+      : format_(ConsumeNonPercent(format)), args_(args) {}
>+
>+  // Runs the parser for `format` and `args`.
>+  // It verifies that the format is valid and that all conversion specifiers
>+  // match the arguments passed.
>+  // In non-positional mode it also verfies that all arguments are consumed.
>+  constexpr bool Run() const {
>+    return RunImpl(!format_.empty() && IsPositional(ConsumeFront(format_)));
>+  }
>+
>+ private:
>+  string_view format_;
>+  // Current list of arguments.
>+  // If we are not in positional mode we will consume from the front and will
>+  // have to be empty in the end.
>+  ConvList args_;
>+};
>+
>+template <Conv... C>
>+constexpr bool ValidFormatImpl(string_view format) {
>+  return FormatParser(format,
>+                      {ConvListT<sizeof...(C)>{{C...}}.list, sizeof...(C)})
>+      .Run();
>+}
>+
>+#endif  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_CHECKER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..14d11ea8bd306a4eafe326aca9eb377a6aef93ba
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/checker_test.cc
>@@ -0,0 +1,150 @@
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_format.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+std::string ConvToString(Conv conv) {
>+  std::string out;
>+#define CONV_SET_CASE(c) \
>+  if (Contains(conv, Conv::c)) out += #c;
>+  ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
>+#undef CONV_SET_CASE
>+  if (Contains(conv, Conv::star)) out += "*";
>+  return out;
>+}
>+
>+TEST(StrFormatChecker, ArgumentToConv) {
>+  Conv conv = ArgumentToConv<std::string>();
>+  EXPECT_EQ(ConvToString(conv), "s");
>+
>+  conv = ArgumentToConv<const char*>();
>+  EXPECT_EQ(ConvToString(conv), "sp");
>+
>+  conv = ArgumentToConv<double>();
>+  EXPECT_EQ(ConvToString(conv), "fFeEgGaA");
>+
>+  conv = ArgumentToConv<int>();
>+  EXPECT_EQ(ConvToString(conv), "cdiouxXfFeEgGaA*");
>+
>+  conv = ArgumentToConv<std::string*>();
>+  EXPECT_EQ(ConvToString(conv), "p");
>+}
>+
>+#if ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+struct Case {
>+  bool result;
>+  const char* format;
>+};
>+
>+template <typename... Args>
>+constexpr Case ValidFormat(const char* format) {
>+  return {ValidFormatImpl<ArgumentToConv<Args>()...>(format), format};
>+}
>+
>+TEST(StrFormatChecker, ValidFormat) {
>+  // We want to make sure these expressions are constexpr and they have the
>+  // expected value.
>+  // If they are not constexpr the attribute will just ignore them and not give
>+  // a compile time error.
>+  enum e {};
>+  enum class e2 {};
>+  constexpr Case trues[] = {
>+      ValidFormat<>("abc"),  //
>+
>+      ValidFormat<e>("%d"),                             //
>+      ValidFormat<e2>("%d"),                            //
>+      ValidFormat<int>("%% %d"),                        //
>+      ValidFormat<int>("%ld"),                          //
>+      ValidFormat<int>("%lld"),                         //
>+      ValidFormat<std::string>("%s"),                        //
>+      ValidFormat<std::string>("%10s"),                      //
>+      ValidFormat<int>("%.10x"),                        //
>+      ValidFormat<int, int>("%*.3x"),                   //
>+      ValidFormat<int>("%1.d"),                         //
>+      ValidFormat<int>("%.d"),                          //
>+      ValidFormat<int, double>("%d %g"),                //
>+      ValidFormat<int, std::string>("%*s"),                  //
>+      ValidFormat<int, double>("%.*f"),                 //
>+      ValidFormat<void (*)(), volatile int*>("%p %p"),  //
>+      ValidFormat<string_view, const char*, double, void*>(
>+          "string_view=%s const char*=%s double=%f void*=%p)"),
>+
>+      ValidFormat<int>("%% %1$d"),            //
>+      ValidFormat<int>("%1$ld"),              //
>+      ValidFormat<int>("%1$lld"),             //
>+      ValidFormat<std::string>("%1$s"),            //
>+      ValidFormat<std::string>("%1$10s"),          //
>+      ValidFormat<int>("%1$.10x"),            //
>+      ValidFormat<int>("%1$*1$.*1$d"),        //
>+      ValidFormat<int, int>("%1$*2$.3x"),     //
>+      ValidFormat<int>("%1$1.d"),             //
>+      ValidFormat<int>("%1$.d"),              //
>+      ValidFormat<double, int>("%2$d %1$g"),  //
>+      ValidFormat<int, std::string>("%2$*1$s"),    //
>+      ValidFormat<int, double>("%2$.*1$f"),   //
>+      ValidFormat<void*, string_view, const char*, double>(
>+          "string_view=%2$s const char*=%3$s double=%4$f void*=%1$p "
>+          "repeat=%3$s)")};
>+
>+  for (Case c : trues) {
>+    EXPECT_TRUE(c.result) << c.format;
>+  }
>+
>+  constexpr Case falses[] = {
>+      ValidFormat<int>(""),  //
>+
>+      ValidFormat<e>("%s"),             //
>+      ValidFormat<e2>("%s"),            //
>+      ValidFormat<>("%s"),              //
>+      ValidFormat<>("%r"),              //
>+      ValidFormat<int>("%s"),           //
>+      ValidFormat<int>("%.1.d"),        //
>+      ValidFormat<int>("%*1d"),         //
>+      ValidFormat<int>("%1-d"),         //
>+      ValidFormat<std::string, int>("%*s"),  //
>+      ValidFormat<int>("%*d"),          //
>+      ValidFormat<std::string>("%p"),        //
>+      ValidFormat<int (*)(int)>("%d"),  //
>+
>+      ValidFormat<>("%3$d"),                //
>+      ValidFormat<>("%1$r"),                //
>+      ValidFormat<int>("%1$s"),             //
>+      ValidFormat<int>("%1$.1.d"),          //
>+      ValidFormat<int>("%1$*2$1d"),         //
>+      ValidFormat<int>("%1$1-d"),           //
>+      ValidFormat<std::string, int>("%2$*1$s"),  //
>+      ValidFormat<std::string>("%1$p"),
>+
>+      ValidFormat<int, int>("%d %2$d"),  //
>+  };
>+
>+  for (Case c : falses) {
>+    EXPECT_FALSE(c.result) << c.format;
>+  }
>+}
>+
>+TEST(StrFormatChecker, LongFormat) {
>+#define CHARS_X_40 "1234567890123456789012345678901234567890"
>+#define CHARS_X_400                                                            \
>+  CHARS_X_40 CHARS_X_40 CHARS_X_40 CHARS_X_40 CHARS_X_40 CHARS_X_40 CHARS_X_40 \
>+      CHARS_X_40 CHARS_X_40 CHARS_X_40
>+#define CHARS_X_4000                                                      \
>+  CHARS_X_400 CHARS_X_400 CHARS_X_400 CHARS_X_400 CHARS_X_400 CHARS_X_400 \
>+      CHARS_X_400 CHARS_X_400 CHARS_X_400 CHARS_X_400
>+  constexpr char long_format[] =
>+      CHARS_X_4000 "%d" CHARS_X_4000 "%s" CHARS_X_4000;
>+  constexpr bool is_valid = ValidFormat<int, std::string>(long_format).result;
>+  EXPECT_TRUE(is_valid);
>+}
>+
>+#endif  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+
>+}  // namespace
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..32f8a0f9ad1a482f038df622d4fb3760ebe6e57c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/convert_test.cc
>@@ -0,0 +1,575 @@
>+#include <errno.h>
>+#include <stdarg.h>
>+#include <stdio.h>
>+#include <cmath>
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/internal/str_format/bind.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+template <typename T, size_t N>
>+size_t ArraySize(T (&)[N]) {
>+  return N;
>+}
>+
>+std::string LengthModFor(float) { return ""; }
>+std::string LengthModFor(double) { return ""; }
>+std::string LengthModFor(long double) { return "L"; }
>+std::string LengthModFor(char) { return "hh"; }
>+std::string LengthModFor(signed char) { return "hh"; }
>+std::string LengthModFor(unsigned char) { return "hh"; }
>+std::string LengthModFor(short) { return "h"; }           // NOLINT
>+std::string LengthModFor(unsigned short) { return "h"; }  // NOLINT
>+std::string LengthModFor(int) { return ""; }
>+std::string LengthModFor(unsigned) { return ""; }
>+std::string LengthModFor(long) { return "l"; }                 // NOLINT
>+std::string LengthModFor(unsigned long) { return "l"; }        // NOLINT
>+std::string LengthModFor(long long) { return "ll"; }           // NOLINT
>+std::string LengthModFor(unsigned long long) { return "ll"; }  // NOLINT
>+
>+std::string EscCharImpl(int v) {
>+  if (isprint(v)) return std::string(1, static_cast<char>(v));
>+  char buf[64];
>+  int n = snprintf(buf, sizeof(buf), "\\%#.2x",
>+                   static_cast<unsigned>(v & 0xff));
>+  assert(n > 0 && n < sizeof(buf));
>+  return std::string(buf, n);
>+}
>+
>+std::string Esc(char v) { return EscCharImpl(v); }
>+std::string Esc(signed char v) { return EscCharImpl(v); }
>+std::string Esc(unsigned char v) { return EscCharImpl(v); }
>+
>+template <typename T>
>+std::string Esc(const T &v) {
>+  std::ostringstream oss;
>+  oss << v;
>+  return oss.str();
>+}
>+
>+void StrAppend(std::string *dst, const char *format, va_list ap) {
>+  // First try with a small fixed size buffer
>+  static const int kSpaceLength = 1024;
>+  char space[kSpaceLength];
>+
>+  // It's possible for methods that use a va_list to invalidate
>+  // the data in it upon use.  The fix is to make a copy
>+  // of the structure before using it and use that copy instead.
>+  va_list backup_ap;
>+  va_copy(backup_ap, ap);
>+  int result = vsnprintf(space, kSpaceLength, format, backup_ap);
>+  va_end(backup_ap);
>+  if (result < kSpaceLength) {
>+    if (result >= 0) {
>+      // Normal case -- everything fit.
>+      dst->append(space, result);
>+      return;
>+    }
>+    if (result < 0) {
>+      // Just an error.
>+      return;
>+    }
>+  }
>+
>+  // Increase the buffer size to the size requested by vsnprintf,
>+  // plus one for the closing \0.
>+  int length = result + 1;
>+  char *buf = new char[length];
>+
>+  // Restore the va_list before we use it again
>+  va_copy(backup_ap, ap);
>+  result = vsnprintf(buf, length, format, backup_ap);
>+  va_end(backup_ap);
>+
>+  if (result >= 0 && result < length) {
>+    // It fit
>+    dst->append(buf, result);
>+  }
>+  delete[] buf;
>+}
>+
>+std::string StrPrint(const char *format, ...) {
>+  va_list ap;
>+  va_start(ap, format);
>+  std::string result;
>+  StrAppend(&result, format, ap);
>+  va_end(ap);
>+  return result;
>+}
>+
>+class FormatConvertTest : public ::testing::Test { };
>+
>+template <typename T>
>+void TestStringConvert(const T& str) {
>+  const FormatArgImpl args[] = {FormatArgImpl(str)};
>+  struct Expectation {
>+    const char *out;
>+    const char *fmt;
>+  };
>+  const Expectation kExpect[] = {
>+    {"hello",  "%1$s"      },
>+    {"",       "%1$.s"     },
>+    {"",       "%1$.0s"    },
>+    {"h",      "%1$.1s"    },
>+    {"he",     "%1$.2s"    },
>+    {"hello",  "%1$.10s"   },
>+    {" hello", "%1$6s"     },
>+    {"   he",  "%1$5.2s"   },
>+    {"he   ",  "%1$-5.2s"  },
>+    {"hello ", "%1$-6.10s" },
>+  };
>+  for (const Expectation &e : kExpect) {
>+    UntypedFormatSpecImpl format(e.fmt);
>+    EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args)));
>+  }
>+}
>+
>+TEST_F(FormatConvertTest, BasicString) {
>+  TestStringConvert("hello");  // As char array.
>+  TestStringConvert(static_cast<const char*>("hello"));
>+  TestStringConvert(std::string("hello"));
>+  TestStringConvert(string_view("hello"));
>+}
>+
>+TEST_F(FormatConvertTest, NullString) {
>+  const char* p = nullptr;
>+  UntypedFormatSpecImpl format("%s");
>+  EXPECT_EQ("", FormatPack(format, {FormatArgImpl(p)}));
>+}
>+
>+TEST_F(FormatConvertTest, StringPrecision) {
>+  // We cap at the precision.
>+  char c = 'a';
>+  const char* p = &c;
>+  UntypedFormatSpecImpl format("%.1s");
>+  EXPECT_EQ("a", FormatPack(format, {FormatArgImpl(p)}));
>+
>+  // We cap at the nul terminator.
>+  p = "ABC";
>+  UntypedFormatSpecImpl format2("%.10s");
>+  EXPECT_EQ("ABC", FormatPack(format2, {FormatArgImpl(p)}));
>+}
>+
>+TEST_F(FormatConvertTest, Pointer) {
>+#if _MSC_VER
>+  // MSVC's printf implementation prints pointers differently. We can't easily
>+  // compare our implementation to theirs.
>+  return;
>+#endif
>+  static int x = 0;
>+  const int *xp = &x;
>+  char c = 'h';
>+  char *mcp = &c;
>+  const char *cp = "hi";
>+  const char *cnil = nullptr;
>+  const int *inil = nullptr;
>+  using VoidF = void (*)();
>+  VoidF fp = [] {}, fnil = nullptr;
>+  volatile char vc;
>+  volatile char* vcp = &vc;
>+  volatile char* vcnil = nullptr;
>+  const FormatArgImpl args[] = {
>+      FormatArgImpl(xp),   FormatArgImpl(cp),  FormatArgImpl(inil),
>+      FormatArgImpl(cnil), FormatArgImpl(mcp), FormatArgImpl(fp),
>+      FormatArgImpl(fnil), FormatArgImpl(vcp), FormatArgImpl(vcnil),
>+  };
>+  struct Expectation {
>+    std::string out;
>+    const char *fmt;
>+  };
>+  const Expectation kExpect[] = {
>+      {StrPrint("%p", &x), "%p"},
>+      {StrPrint("%20p", &x), "%20p"},
>+      {StrPrint("%.1p", &x), "%.1p"},
>+      {StrPrint("%.20p", &x), "%.20p"},
>+      {StrPrint("%30.20p", &x), "%30.20p"},
>+
>+      {StrPrint("%-p", &x), "%-p"},
>+      {StrPrint("%-20p", &x), "%-20p"},
>+      {StrPrint("%-.1p", &x), "%-.1p"},
>+      {StrPrint("%.20p", &x), "%.20p"},
>+      {StrPrint("%-30.20p", &x), "%-30.20p"},
>+
>+      {StrPrint("%p", cp), "%2$p"},   // const char*
>+      {"(nil)", "%3$p"},              // null const char *
>+      {"(nil)", "%4$p"},              // null const int *
>+      {StrPrint("%p", mcp), "%5$p"},  // nonconst char*
>+
>+      {StrPrint("%p", fp), "%6$p"},   // function pointer
>+      {StrPrint("%p", vcp), "%8$p"},  // function pointer
>+
>+#ifndef __APPLE__
>+      // Apple's printf differs here (0x0 vs. nil)
>+      {StrPrint("%p", fnil), "%7$p"},   // null function pointer
>+      {StrPrint("%p", vcnil), "%9$p"},  // null function pointer
>+#endif
>+  };
>+  for (const Expectation &e : kExpect) {
>+    UntypedFormatSpecImpl format(e.fmt);
>+    EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args))) << e.fmt;
>+  }
>+}
>+
>+struct Cardinal {
>+  enum Pos { k1 = 1, k2 = 2, k3 = 3 };
>+  enum Neg { kM1 = -1, kM2 = -2, kM3 = -3 };
>+};
>+
>+TEST_F(FormatConvertTest, Enum) {
>+  const Cardinal::Pos k3 = Cardinal::k3;
>+  const Cardinal::Neg km3 = Cardinal::kM3;
>+  const FormatArgImpl args[] = {FormatArgImpl(k3), FormatArgImpl(km3)};
>+  UntypedFormatSpecImpl format("%1$d");
>+  UntypedFormatSpecImpl format2("%2$d");
>+  EXPECT_EQ("3", FormatPack(format, absl::MakeSpan(args)));
>+  EXPECT_EQ("-3", FormatPack(format2, absl::MakeSpan(args)));
>+}
>+
>+template <typename T>
>+class TypedFormatConvertTest : public FormatConvertTest { };
>+
>+TYPED_TEST_CASE_P(TypedFormatConvertTest);
>+
>+std::vector<std::string> AllFlagCombinations() {
>+  const char kFlags[] = {'-', '#', '0', '+', ' '};
>+  std::vector<std::string> result;
>+  for (size_t fsi = 0; fsi < (1ull << ArraySize(kFlags)); ++fsi) {
>+    std::string flag_set;
>+    for (size_t fi = 0; fi < ArraySize(kFlags); ++fi)
>+      if (fsi & (1ull << fi))
>+        flag_set += kFlags[fi];
>+    result.push_back(flag_set);
>+  }
>+  return result;
>+}
>+
>+TYPED_TEST_P(TypedFormatConvertTest, AllIntsWithFlags) {
>+  typedef TypeParam T;
>+  typedef typename std::make_unsigned<T>::type UnsignedT;
>+  using remove_volatile_t = typename std::remove_volatile<T>::type;
>+  const T kMin = std::numeric_limits<remove_volatile_t>::min();
>+  const T kMax = std::numeric_limits<remove_volatile_t>::max();
>+  const T kVals[] = {
>+      remove_volatile_t(1),
>+      remove_volatile_t(2),
>+      remove_volatile_t(3),
>+      remove_volatile_t(123),
>+      remove_volatile_t(-1),
>+      remove_volatile_t(-2),
>+      remove_volatile_t(-3),
>+      remove_volatile_t(-123),
>+      remove_volatile_t(0),
>+      kMax - remove_volatile_t(1),
>+      kMax,
>+      kMin + remove_volatile_t(1),
>+      kMin,
>+  };
>+  const char kConvChars[] = {'d', 'i', 'u', 'o', 'x', 'X'};
>+  const std::string kWid[] = {"", "4", "10"};
>+  const std::string kPrec[] = {"", ".", ".0", ".4", ".10"};
>+
>+  const std::vector<std::string> flag_sets = AllFlagCombinations();
>+
>+  for (size_t vi = 0; vi < ArraySize(kVals); ++vi) {
>+    const T val = kVals[vi];
>+    SCOPED_TRACE(Esc(val));
>+    const FormatArgImpl args[] = {FormatArgImpl(val)};
>+    for (size_t ci = 0; ci < ArraySize(kConvChars); ++ci) {
>+      const char conv_char = kConvChars[ci];
>+      for (size_t fsi = 0; fsi < flag_sets.size(); ++fsi) {
>+        const std::string &flag_set = flag_sets[fsi];
>+        for (size_t wi = 0; wi < ArraySize(kWid); ++wi) {
>+          const std::string &wid = kWid[wi];
>+          for (size_t pi = 0; pi < ArraySize(kPrec); ++pi) {
>+            const std::string &prec = kPrec[pi];
>+
>+            const bool is_signed_conv = (conv_char == 'd' || conv_char == 'i');
>+            const bool is_unsigned_to_signed =
>+                !std::is_signed<T>::value && is_signed_conv;
>+            // Don't consider sign-related flags '+' and ' ' when doing
>+            // unsigned to signed conversions.
>+            if (is_unsigned_to_signed &&
>+                flag_set.find_first_of("+ ") != std::string::npos) {
>+              continue;
>+            }
>+
>+            std::string new_fmt("%");
>+            new_fmt += flag_set;
>+            new_fmt += wid;
>+            new_fmt += prec;
>+            // old and new always agree up to here.
>+            std::string old_fmt = new_fmt;
>+            new_fmt += conv_char;
>+            std::string old_result;
>+            if (is_unsigned_to_signed) {
>+              // don't expect agreement on unsigned formatted as signed,
>+              // as printf can't do that conversion properly. For those
>+              // cases, we do expect agreement with printf with a "%u"
>+              // and the unsigned equivalent of 'val'.
>+              UnsignedT uval = val;
>+              old_fmt += LengthModFor(uval);
>+              old_fmt += "u";
>+              old_result = StrPrint(old_fmt.c_str(), uval);
>+            } else {
>+              old_fmt += LengthModFor(val);
>+              old_fmt += conv_char;
>+              old_result = StrPrint(old_fmt.c_str(), val);
>+            }
>+
>+            SCOPED_TRACE(std::string() + " old_fmt: \"" + old_fmt +
>+                         "\"'"
>+                         " new_fmt: \"" +
>+                         new_fmt + "\"");
>+            UntypedFormatSpecImpl format(new_fmt);
>+            EXPECT_EQ(old_result, FormatPack(format, absl::MakeSpan(args)));
>+          }
>+        }
>+      }
>+    }
>+  }
>+}
>+
>+TYPED_TEST_P(TypedFormatConvertTest, Char) {
>+  typedef TypeParam T;
>+  using remove_volatile_t = typename std::remove_volatile<T>::type;
>+  static const T kMin = std::numeric_limits<remove_volatile_t>::min();
>+  static const T kMax = std::numeric_limits<remove_volatile_t>::max();
>+  T kVals[] = {
>+    remove_volatile_t(1), remove_volatile_t(2), remove_volatile_t(10),
>+    remove_volatile_t(-1), remove_volatile_t(-2), remove_volatile_t(-10),
>+    remove_volatile_t(0),
>+    kMin + remove_volatile_t(1), kMin,
>+    kMax - remove_volatile_t(1), kMax
>+  };
>+  for (const T &c : kVals) {
>+    const FormatArgImpl args[] = {FormatArgImpl(c)};
>+    UntypedFormatSpecImpl format("%c");
>+    EXPECT_EQ(StrPrint("%c", c), FormatPack(format, absl::MakeSpan(args)));
>+  }
>+}
>+
>+REGISTER_TYPED_TEST_CASE_P(TypedFormatConvertTest, AllIntsWithFlags, Char);
>+
>+typedef ::testing::Types<
>+    int, unsigned, volatile int,
>+    short, unsigned short,
>+    long, unsigned long,
>+    long long, unsigned long long,
>+    signed char, unsigned char, char>
>+    AllIntTypes;
>+INSTANTIATE_TYPED_TEST_CASE_P(TypedFormatConvertTestWithAllIntTypes,
>+                              TypedFormatConvertTest, AllIntTypes);
>+TEST_F(FormatConvertTest, Uint128) {
>+  absl::uint128 v = static_cast<absl::uint128>(0x1234567890abcdef) * 1979;
>+  absl::uint128 max = absl::Uint128Max();
>+  const FormatArgImpl args[] = {FormatArgImpl(v), FormatArgImpl(max)};
>+
>+  struct Case {
>+    const char* format;
>+    const char* expected;
>+  } cases[] = {
>+      {"%1$d", "2595989796776606496405"},
>+      {"%1$30d", "        2595989796776606496405"},
>+      {"%1$-30d", "2595989796776606496405        "},
>+      {"%1$u", "2595989796776606496405"},
>+      {"%1$x", "8cba9876066020f695"},
>+      {"%2$d", "340282366920938463463374607431768211455"},
>+      {"%2$u", "340282366920938463463374607431768211455"},
>+      {"%2$x", "ffffffffffffffffffffffffffffffff"},
>+  };
>+
>+  for (auto c : cases) {
>+    UntypedFormatSpecImpl format(c.format);
>+    EXPECT_EQ(c.expected, FormatPack(format, absl::MakeSpan(args)));
>+  }
>+}
>+
>+TEST_F(FormatConvertTest, Float) {
>+#if _MSC_VER
>+  // MSVC has a different rounding policy than us so we can't test our
>+  // implementation against the native one there.
>+  return;
>+#endif  // _MSC_VER
>+
>+  const char *const kFormats[] = {
>+      "%",  "%.3",  "%8.5",   "%9",   "%.60", "%.30",   "%03",    "%+",
>+      "% ", "%-10", "%#15.3", "%#.0", "%.0",  "%1$*2$", "%1$.*2$"};
>+
>+  std::vector<double> doubles = {0.0,
>+                                 -0.0,
>+                                 .99999999999999,
>+                                 99999999999999.,
>+                                 std::numeric_limits<double>::max(),
>+                                 -std::numeric_limits<double>::max(),
>+                                 std::numeric_limits<double>::min(),
>+                                 -std::numeric_limits<double>::min(),
>+                                 std::numeric_limits<double>::lowest(),
>+                                 -std::numeric_limits<double>::lowest(),
>+                                 std::numeric_limits<double>::epsilon(),
>+                                 std::numeric_limits<double>::epsilon() + 1,
>+                                 std::numeric_limits<double>::infinity(),
>+                                 -std::numeric_limits<double>::infinity()};
>+
>+#ifndef __APPLE__
>+  // Apple formats NaN differently (+nan) vs. (nan)
>+  doubles.push_back(std::nan(""));
>+#endif
>+
>+  // Some regression tests.
>+  doubles.push_back(0.99999999999999989);
>+
>+  if (std::numeric_limits<double>::has_denorm != std::denorm_absent) {
>+    doubles.push_back(std::numeric_limits<double>::denorm_min());
>+    doubles.push_back(-std::numeric_limits<double>::denorm_min());
>+  }
>+
>+  for (double base :
>+       {1., 12., 123., 1234., 12345., 123456., 1234567., 12345678., 123456789.,
>+        1234567890., 12345678901., 123456789012., 1234567890123.}) {
>+    for (int exp = -123; exp <= 123; ++exp) {
>+      for (int sign : {1, -1}) {
>+        doubles.push_back(sign * std::ldexp(base, exp));
>+      }
>+    }
>+  }
>+
>+  for (const char *fmt : kFormats) {
>+    for (char f : {'f', 'F',  //
>+                   'g', 'G',  //
>+                   'a', 'A',  //
>+                   'e', 'E'}) {
>+      std::string fmt_str = std::string(fmt) + f;
>+      for (double d : doubles) {
>+        int i = -10;
>+        FormatArgImpl args[2] = {FormatArgImpl(d), FormatArgImpl(i)};
>+        UntypedFormatSpecImpl format(fmt_str);
>+        // We use ASSERT_EQ here because failures are usually correlated and a
>+        // bug would print way too many failed expectations causing the test to
>+        // time out.
>+        ASSERT_EQ(StrPrint(fmt_str.c_str(), d, i),
>+                  FormatPack(format, absl::MakeSpan(args)))
>+            << fmt_str << " " << StrPrint("%.18g", d) << " "
>+            << StrPrint("%.999f", d);
>+      }
>+    }
>+  }
>+}
>+
>+TEST_F(FormatConvertTest, LongDouble) {
>+  const char *const kFormats[] = {"%",    "%.3", "%8.5", "%9",
>+                                  "%.60", "%+",  "% ",   "%-10"};
>+
>+  // This value is not representable in double, but it is in long double that
>+  // uses the extended format.
>+  // This is to verify that we are not truncating the value mistakenly through a
>+  // double.
>+  long double very_precise = 10000000000000000.25L;
>+
>+  std::vector<long double> doubles = {
>+      0.0,
>+      -0.0,
>+      very_precise,
>+      1 / very_precise,
>+      std::numeric_limits<long double>::max(),
>+      -std::numeric_limits<long double>::max(),
>+      std::numeric_limits<long double>::min(),
>+      -std::numeric_limits<long double>::min(),
>+      std::numeric_limits<long double>::infinity(),
>+      -std::numeric_limits<long double>::infinity()};
>+
>+  for (const char *fmt : kFormats) {
>+    for (char f : {'f', 'F',  //
>+                   'g', 'G',  //
>+                   'a', 'A',  //
>+                   'e', 'E'}) {
>+      std::string fmt_str = std::string(fmt) + 'L' + f;
>+      for (auto d : doubles) {
>+        FormatArgImpl arg(d);
>+        UntypedFormatSpecImpl format(fmt_str);
>+        // We use ASSERT_EQ here because failures are usually correlated and a
>+        // bug would print way too many failed expectations causing the test to
>+        // time out.
>+        ASSERT_EQ(StrPrint(fmt_str.c_str(), d),
>+                  FormatPack(format, {&arg, 1}))
>+            << fmt_str << " " << StrPrint("%.18Lg", d) << " "
>+            << StrPrint("%.999Lf", d);
>+      }
>+    }
>+  }
>+}
>+
>+TEST_F(FormatConvertTest, IntAsFloat) {
>+  const int kMin = std::numeric_limits<int>::min();
>+  const int kMax = std::numeric_limits<int>::max();
>+  const int ia[] = {
>+    1, 2, 3, 123,
>+    -1, -2, -3, -123,
>+    0, kMax - 1, kMax, kMin + 1, kMin };
>+  for (const int fx : ia) {
>+    SCOPED_TRACE(fx);
>+    const FormatArgImpl args[] = {FormatArgImpl(fx)};
>+    struct Expectation {
>+      int line;
>+      std::string out;
>+      const char *fmt;
>+    };
>+    const double dx = static_cast<double>(fx);
>+    const Expectation kExpect[] = {
>+      { __LINE__, StrPrint("%f", dx), "%f" },
>+      { __LINE__, StrPrint("%12f", dx), "%12f" },
>+      { __LINE__, StrPrint("%.12f", dx), "%.12f" },
>+      { __LINE__, StrPrint("%12a", dx), "%12a" },
>+      { __LINE__, StrPrint("%.12a", dx), "%.12a" },
>+    };
>+    for (const Expectation &e : kExpect) {
>+      SCOPED_TRACE(e.line);
>+      SCOPED_TRACE(e.fmt);
>+      UntypedFormatSpecImpl format(e.fmt);
>+      EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args)));
>+    }
>+  }
>+}
>+
>+template <typename T>
>+bool FormatFails(const char* test_format, T value) {
>+  std::string format_string = std::string("<<") + test_format + ">>";
>+  UntypedFormatSpecImpl format(format_string);
>+
>+  int one = 1;
>+  const FormatArgImpl args[] = {FormatArgImpl(value), FormatArgImpl(one)};
>+  EXPECT_EQ(FormatPack(format, absl::MakeSpan(args)), "")
>+      << "format=" << test_format << " value=" << value;
>+  return FormatPack(format, absl::MakeSpan(args)).empty();
>+}
>+
>+TEST_F(FormatConvertTest, ExpectedFailures) {
>+  // Int input
>+  EXPECT_TRUE(FormatFails("%p", 1));
>+  EXPECT_TRUE(FormatFails("%s", 1));
>+  EXPECT_TRUE(FormatFails("%n", 1));
>+
>+  // Double input
>+  EXPECT_TRUE(FormatFails("%p", 1.));
>+  EXPECT_TRUE(FormatFails("%s", 1.));
>+  EXPECT_TRUE(FormatFails("%n", 1.));
>+  EXPECT_TRUE(FormatFails("%c", 1.));
>+  EXPECT_TRUE(FormatFails("%d", 1.));
>+  EXPECT_TRUE(FormatFails("%x", 1.));
>+  EXPECT_TRUE(FormatFails("%*d", 1.));
>+
>+  // String input
>+  EXPECT_TRUE(FormatFails("%n", ""));
>+  EXPECT_TRUE(FormatFails("%c", ""));
>+  EXPECT_TRUE(FormatFails("%d", ""));
>+  EXPECT_TRUE(FormatFails("%x", ""));
>+  EXPECT_TRUE(FormatFails("%f", ""));
>+  EXPECT_TRUE(FormatFails("%*d", ""));
>+}
>+
>+}  // namespace
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c2174703c3e8b3f37bd12c64dd92025e3a74a960
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc
>@@ -0,0 +1,84 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/str_format/extension.h"
>+
>+#include <errno.h>
>+#include <algorithm>
>+#include <string>
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+// clang-format off
>+#define ABSL_LENGTH_MODS_EXPAND_ \
>+  X_VAL(h) X_SEP \
>+  X_VAL(hh) X_SEP \
>+  X_VAL(l) X_SEP \
>+  X_VAL(ll) X_SEP \
>+  X_VAL(L) X_SEP \
>+  X_VAL(j) X_SEP \
>+  X_VAL(z) X_SEP \
>+  X_VAL(t) X_SEP \
>+  X_VAL(q)
>+// clang-format on
>+}  // namespace
>+
>+const LengthMod::Spec LengthMod::kSpecs[] = {
>+#define X_VAL(id) { LengthMod::id, #id, strlen(#id) }
>+#define X_SEP ,
>+    ABSL_LENGTH_MODS_EXPAND_, {LengthMod::none, "", 0}
>+#undef X_VAL
>+#undef X_SEP
>+};
>+
>+const ConversionChar::Spec ConversionChar::kSpecs[] = {
>+#define X_VAL(id) { ConversionChar::id, #id[0] }
>+#define X_SEP ,
>+    ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, X_SEP),
>+    {ConversionChar::none, '\0'},
>+#undef X_VAL
>+#undef X_SEP
>+};
>+
>+std::string Flags::ToString() const {
>+  std::string s;
>+  s.append(left     ? "-" : "");
>+  s.append(show_pos ? "+" : "");
>+  s.append(sign_col ? " " : "");
>+  s.append(alt      ? "#" : "");
>+  s.append(zero     ? "0" : "");
>+  return s;
>+}
>+
>+const size_t LengthMod::kNumValues;
>+
>+const size_t ConversionChar::kNumValues;
>+
>+bool FormatSinkImpl::PutPaddedString(string_view v, int w, int p, bool l) {
>+  size_t space_remaining = 0;
>+  if (w >= 0) space_remaining = w;
>+  size_t n = v.size();
>+  if (p >= 0) n = std::min(n, static_cast<size_t>(p));
>+  string_view shown(v.data(), n);
>+  space_remaining = Excess(shown.size(), space_remaining);
>+  if (!l) Append(space_remaining, ' ');
>+  Append(shown);
>+  if (l) Append(space_remaining, ' ');
>+  return true;
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..810330b9d71bd188c26eae215abd61d48ed4bd78
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension.h
>@@ -0,0 +1,406 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+//
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_EXTENSION_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_EXTENSION_H_
>+
>+#include <limits.h>
>+#include <cstring>
>+#include <ostream>
>+
>+#include "absl/base/port.h"
>+#include "absl/strings/internal/str_format/output.h"
>+#include "absl/strings/string_view.h"
>+
>+class Cord;
>+
>+namespace absl {
>+
>+namespace str_format_internal {
>+
>+class FormatRawSinkImpl {
>+ public:
>+  // Implicitly convert from any type that provides the hook function as
>+  // described above.
>+  template <typename T, decltype(str_format_internal::InvokeFlush(
>+                            std::declval<T*>(), string_view()))* = nullptr>
>+  FormatRawSinkImpl(T* raw)  // NOLINT
>+      : sink_(raw), write_(&FormatRawSinkImpl::Flush<T>) {}
>+
>+  void Write(string_view s) { write_(sink_, s); }
>+
>+  template <typename T>
>+  static FormatRawSinkImpl Extract(T s) {
>+    return s.sink_;
>+  }
>+
>+ private:
>+  template <typename T>
>+  static void Flush(void* r, string_view s) {
>+    str_format_internal::InvokeFlush(static_cast<T*>(r), s);
>+  }
>+
>+  void* sink_;
>+  void (*write_)(void*, string_view);
>+};
>+
>+// An abstraction to which conversions write their std::string data.
>+class FormatSinkImpl {
>+ public:
>+  explicit FormatSinkImpl(FormatRawSinkImpl raw) : raw_(raw) {}
>+
>+  ~FormatSinkImpl() { Flush(); }
>+
>+  void Flush() {
>+    raw_.Write(string_view(buf_, pos_ - buf_));
>+    pos_ = buf_;
>+  }
>+
>+  void Append(size_t n, char c) {
>+    if (n == 0) return;
>+    size_ += n;
>+    auto raw_append = [&](size_t count) {
>+      memset(pos_, c, count);
>+      pos_ += count;
>+    };
>+    while (n > Avail()) {
>+      n -= Avail();
>+      if (Avail() > 0) {
>+        raw_append(Avail());
>+      }
>+      Flush();
>+    }
>+    raw_append(n);
>+  }
>+
>+  void Append(string_view v) {
>+    size_t n = v.size();
>+    if (n == 0) return;
>+    size_ += n;
>+    if (n >= Avail()) {
>+      Flush();
>+      raw_.Write(v);
>+      return;
>+    }
>+    memcpy(pos_, v.data(), n);
>+    pos_ += n;
>+  }
>+
>+  size_t size() const { return size_; }
>+
>+  // Put 'v' to 'sink' with specified width, precision, and left flag.
>+  bool PutPaddedString(string_view v, int w, int p, bool l);
>+
>+  template <typename T>
>+  T Wrap() {
>+    return T(this);
>+  }
>+
>+  template <typename T>
>+  static FormatSinkImpl* Extract(T* s) {
>+    return s->sink_;
>+  }
>+
>+ private:
>+  size_t Avail() const { return buf_ + sizeof(buf_) - pos_; }
>+
>+  FormatRawSinkImpl raw_;
>+  size_t size_ = 0;
>+  char* pos_ = buf_;
>+  char buf_[1024];
>+};
>+
>+struct Flags {
>+  bool basic : 1;     // fastest conversion: no flags, width, or precision
>+  bool left : 1;      // "-"
>+  bool show_pos : 1;  // "+"
>+  bool sign_col : 1;  // " "
>+  bool alt : 1;       // "#"
>+  bool zero : 1;      // "0"
>+  std::string ToString() const;
>+  friend std::ostream& operator<<(std::ostream& os, const Flags& v) {
>+    return os << v.ToString();
>+  }
>+};
>+
>+struct LengthMod {
>+ public:
>+  enum Id : uint8_t {
>+    h, hh, l, ll, L, j, z, t, q, none
>+  };
>+  static const size_t kNumValues = none + 1;
>+
>+  LengthMod() : id_(none) {}
>+
>+  // Index into the opaque array of LengthMod enums.
>+  // Requires: i < kNumValues
>+  static LengthMod FromIndex(size_t i) {
>+    return LengthMod(kSpecs[i].value);
>+  }
>+
>+  static LengthMod FromId(Id id) { return LengthMod(id); }
>+
>+  // The length modifier std::string associated with a specified LengthMod.
>+  string_view name() const {
>+    const Spec& spec = kSpecs[id_];
>+    return {spec.name, spec.name_length};
>+  }
>+
>+  Id id() const { return id_; }
>+
>+  friend bool operator==(const LengthMod& a, const LengthMod& b) {
>+    return a.id() == b.id();
>+  }
>+  friend bool operator!=(const LengthMod& a, const LengthMod& b) {
>+    return !(a == b);
>+  }
>+  friend std::ostream& operator<<(std::ostream& os, const LengthMod& v) {
>+    return os << v.name();
>+  }
>+
>+ private:
>+  struct Spec {
>+    Id value;
>+    const char *name;
>+    size_t name_length;
>+  };
>+  static const Spec kSpecs[];
>+
>+  explicit LengthMod(Id id) : id_(id) {}
>+
>+  Id id_;
>+};
>+
>+// clang-format off
>+#define ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, X_SEP) \
>+  /* text */ \
>+  X_VAL(c) X_SEP X_VAL(C) X_SEP X_VAL(s) X_SEP X_VAL(S) X_SEP \
>+  /* ints */ \
>+  X_VAL(d) X_SEP X_VAL(i) X_SEP X_VAL(o) X_SEP \
>+  X_VAL(u) X_SEP X_VAL(x) X_SEP X_VAL(X) X_SEP \
>+  /* floats */ \
>+  X_VAL(f) X_SEP X_VAL(F) X_SEP X_VAL(e) X_SEP X_VAL(E) X_SEP \
>+  X_VAL(g) X_SEP X_VAL(G) X_SEP X_VAL(a) X_SEP X_VAL(A) X_SEP \
>+  /* misc */ \
>+  X_VAL(n) X_SEP X_VAL(p)
>+// clang-format on
>+
>+struct ConversionChar {
>+ public:
>+  enum Id : uint8_t {
>+    c, C, s, S,              // text
>+    d, i, o, u, x, X,        // int
>+    f, F, e, E, g, G, a, A,  // float
>+    n, p,                    // misc
>+    none
>+  };
>+  static const size_t kNumValues = none + 1;
>+
>+  ConversionChar() : id_(none) {}
>+
>+ public:
>+  // Index into the opaque array of ConversionChar enums.
>+  // Requires: i < kNumValues
>+  static ConversionChar FromIndex(size_t i) {
>+    return ConversionChar(kSpecs[i].value);
>+  }
>+
>+  static ConversionChar FromChar(char c) {
>+    ConversionChar::Id out_id = ConversionChar::none;
>+    switch (c) {
>+#define X_VAL(id)                \
>+  case #id[0]:                   \
>+    out_id = ConversionChar::id; \
>+    break;
>+      ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, )
>+#undef X_VAL
>+      default:
>+        break;
>+    }
>+    return ConversionChar(out_id);
>+  }
>+
>+  static ConversionChar FromId(Id id) { return ConversionChar(id); }
>+  Id id() const { return id_; }
>+
>+  int radix() const {
>+    switch (id()) {
>+      case x: case X: case a: case A: case p: return 16;
>+      case o: return 8;
>+      default: return 10;
>+    }
>+  }
>+
>+  bool upper() const {
>+    switch (id()) {
>+      case X: case F: case E: case G: case A: return true;
>+      default: return false;
>+    }
>+  }
>+
>+  bool is_signed() const {
>+    switch (id()) {
>+      case d: case i: return true;
>+      default: return false;
>+    }
>+  }
>+
>+  bool is_integral() const {
>+    switch (id()) {
>+      case d: case i: case u: case o: case x: case X:
>+        return true;
>+      default: return false;
>+    }
>+  }
>+
>+  bool is_float() const {
>+    switch (id()) {
>+      case a: case e: case f: case g: case A: case E: case F: case G:
>+        return true;
>+      default: return false;
>+    }
>+  }
>+
>+  bool IsValid() const { return id() != none; }
>+
>+  // The associated char.
>+  char Char() const { return kSpecs[id_].name; }
>+
>+  friend bool operator==(const ConversionChar& a, const ConversionChar& b) {
>+    return a.id() == b.id();
>+  }
>+  friend bool operator!=(const ConversionChar& a, const ConversionChar& b) {
>+    return !(a == b);
>+  }
>+  friend std::ostream& operator<<(std::ostream& os, const ConversionChar& v) {
>+    char c = v.Char();
>+    if (!c) c = '?';
>+    return os << c;
>+  }
>+
>+ private:
>+  struct Spec {
>+    Id value;
>+    char name;
>+  };
>+  static const Spec kSpecs[];
>+
>+  explicit ConversionChar(Id id) : id_(id) {}
>+
>+  Id id_;
>+};
>+
>+class ConversionSpec {
>+ public:
>+  Flags flags() const { return flags_; }
>+  LengthMod length_mod() const { return length_mod_; }
>+  ConversionChar conv() const { return conv_; }
>+
>+  // Returns the specified width. If width is unspecfied, it returns a negative
>+  // value.
>+  int width() const { return width_; }
>+  // Returns the specified precision. If precision is unspecfied, it returns a
>+  // negative value.
>+  int precision() const { return precision_; }
>+
>+  void set_flags(Flags f) { flags_ = f; }
>+  void set_length_mod(LengthMod lm) { length_mod_ = lm; }
>+  void set_conv(ConversionChar c) { conv_ = c; }
>+  void set_width(int w) { width_ = w; }
>+  void set_precision(int p) { precision_ = p; }
>+  void set_left(bool b) { flags_.left = b; }
>+
>+ private:
>+  Flags flags_;
>+  LengthMod length_mod_;
>+  ConversionChar conv_;
>+  int width_;
>+  int precision_;
>+};
>+
>+constexpr uint64_t ConversionCharToConvValue(char conv) {
>+  return
>+#define CONV_SET_CASE(c) \
>+  conv == #c[0] ? (uint64_t{1} << (1 + ConversionChar::Id::c)):
>+      ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
>+#undef CONV_SET_CASE
>+                  conv == '*'
>+          ? 1
>+          : 0;
>+}
>+
>+enum class Conv : uint64_t {
>+#define CONV_SET_CASE(c) c = ConversionCharToConvValue(#c[0]),
>+  ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
>+#undef CONV_SET_CASE
>+
>+  // Used for width/precision '*' specification.
>+  star = ConversionCharToConvValue('*'),
>+
>+  // Some predefined values:
>+  integral = d | i | u | o | x | X,
>+  floating = a | e | f | g | A | E | F | G,
>+  numeric = integral | floating,
>+  string = s,  // absl:ignore(std::string)
>+  pointer = p
>+};
>+
>+// Type safe OR operator.
>+// We need this for two reasons:
>+//  1. operator| on enums makes them decay to integers and the result is an
>+//     integer. We need the result to stay as an enum.
>+//  2. We use "enum class" which would not work even if we accepted the decay.
>+constexpr Conv operator|(Conv a, Conv b) {
>+  return Conv(static_cast<uint64_t>(a) | static_cast<uint64_t>(b));
>+}
>+
>+// Get a conversion with a single character in it.
>+constexpr Conv ConversionCharToConv(char c) {
>+  return Conv(ConversionCharToConvValue(c));
>+}
>+
>+// Checks whether `c` exists in `set`.
>+constexpr bool Contains(Conv set, char c) {
>+  return (static_cast<uint64_t>(set) & ConversionCharToConvValue(c)) != 0;
>+}
>+
>+// Checks whether all the characters in `c` are contained in `set`
>+constexpr bool Contains(Conv set, Conv c) {
>+  return (static_cast<uint64_t>(set) & static_cast<uint64_t>(c)) ==
>+         static_cast<uint64_t>(c);
>+}
>+
>+// Return type of the AbslFormatConvert() functions.
>+// The Conv template parameter is used to inform the framework of what
>+// conversion characters are supported by that AbslFormatConvert routine.
>+template <Conv C>
>+struct ConvertResult {
>+  static constexpr Conv kConv = C;
>+  bool value;
>+};
>+template <Conv C>
>+constexpr Conv ConvertResult<C>::kConv;
>+
>+// Return capacity - used, clipped to a minimum of 0.
>+inline size_t Excess(size_t used, size_t capacity) {
>+  return used < capacity ? capacity - used : 0;
>+}
>+
>+}  // namespace str_format_internal
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STR_FORMAT_EXTENSION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..224fc923d3e3dbaa34170a47c6f8133c8444ab39
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/extension_test.cc
>@@ -0,0 +1,65 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#include "absl/strings/internal/str_format/extension.h"
>+
>+#include <random>
>+#include <string>
>+#include "absl/strings/str_format.h"
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+std::string MakeRandomString(size_t len) {
>+  std::random_device rd;
>+  std::mt19937 gen(rd());
>+  std::uniform_int_distribution<> dis('a', 'z');
>+  std::string s(len, '0');
>+  for (char& c : s) {
>+    c = dis(gen);
>+  }
>+  return s;
>+}
>+
>+TEST(FormatExtensionTest, SinkAppendSubstring) {
>+  for (size_t chunk_size : {1, 10, 100, 1000, 10000}) {
>+    std::string expected, actual;
>+    absl::str_format_internal::FormatSinkImpl sink(&actual);
>+    for (size_t chunks = 0; chunks < 10; ++chunks) {
>+      std::string rand = MakeRandomString(chunk_size);
>+      expected += rand;
>+      sink.Append(rand);
>+    }
>+    sink.Flush();
>+    EXPECT_EQ(actual, expected);
>+  }
>+}
>+
>+TEST(FormatExtensionTest, SinkAppendChars) {
>+  for (size_t chunk_size : {1, 10, 100, 1000, 10000}) {
>+    std::string expected, actual;
>+    absl::str_format_internal::FormatSinkImpl sink(&actual);
>+    for (size_t chunks = 0; chunks < 10; ++chunks) {
>+      std::string rand = MakeRandomString(1);
>+      expected.append(chunk_size, rand[0]);
>+      sink.Append(chunk_size, rand[0]);
>+    }
>+    sink.Flush();
>+    EXPECT_EQ(actual, expected);
>+  }
>+}
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..6176db9cb5a22dc1133aadcb6c959593b0199617
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc
>@@ -0,0 +1,483 @@
>+#include "absl/strings/internal/str_format/float_conversion.h"
>+
>+#include <string.h>
>+#include <algorithm>
>+#include <cassert>
>+#include <cmath>
>+#include <string>
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+namespace {
>+
>+char *CopyStringTo(string_view v, char *out) {
>+  std::memcpy(out, v.data(), v.size());
>+  return out + v.size();
>+}
>+
>+template <typename Float>
>+bool FallbackToSnprintf(const Float v, const ConversionSpec &conv,
>+                        FormatSinkImpl *sink) {
>+  int w = conv.width() >= 0 ? conv.width() : 0;
>+  int p = conv.precision() >= 0 ? conv.precision() : -1;
>+  char fmt[32];
>+  {
>+    char *fp = fmt;
>+    *fp++ = '%';
>+    fp = CopyStringTo(conv.flags().ToString(), fp);
>+    fp = CopyStringTo("*.*", fp);
>+    if (std::is_same<long double, Float>()) {
>+      *fp++ = 'L';
>+    }
>+    *fp++ = conv.conv().Char();
>+    *fp = 0;
>+    assert(fp < fmt + sizeof(fmt));
>+  }
>+  std::string space(512, '\0');
>+  string_view result;
>+  while (true) {
>+    int n = snprintf(&space[0], space.size(), fmt, w, p, v);
>+    if (n < 0) return false;
>+    if (static_cast<size_t>(n) < space.size()) {
>+      result = string_view(space.data(), n);
>+      break;
>+    }
>+    space.resize(n + 1);
>+  }
>+  sink->Append(result);
>+  return true;
>+}
>+
>+// 128-bits in decimal: ceil(128*log(2)/log(10))
>+//   or std::numeric_limits<__uint128_t>::digits10
>+constexpr int kMaxFixedPrecision = 39;
>+
>+constexpr int kBufferLength = /*sign*/ 1 +
>+                              /*integer*/ kMaxFixedPrecision +
>+                              /*point*/ 1 +
>+                              /*fraction*/ kMaxFixedPrecision +
>+                              /*exponent e+123*/ 5;
>+
>+struct Buffer {
>+  void push_front(char c) {
>+    assert(begin > data);
>+    *--begin = c;
>+  }
>+  void push_back(char c) {
>+    assert(end < data + sizeof(data));
>+    *end++ = c;
>+  }
>+  void pop_back() {
>+    assert(begin < end);
>+    --end;
>+  }
>+
>+  char &back() {
>+    assert(begin < end);
>+    return end[-1];
>+  }
>+
>+  char last_digit() const { return end[-1] == '.' ? end[-2] : end[-1]; }
>+
>+  int size() const { return static_cast<int>(end - begin); }
>+
>+  char data[kBufferLength];
>+  char *begin;
>+  char *end;
>+};
>+
>+enum class FormatStyle { Fixed, Precision };
>+
>+// If the value is Inf or Nan, print it and return true.
>+// Otherwise, return false.
>+template <typename Float>
>+bool ConvertNonNumericFloats(char sign_char, Float v,
>+                             const ConversionSpec &conv, FormatSinkImpl *sink) {
>+  char text[4], *ptr = text;
>+  if (sign_char) *ptr++ = sign_char;
>+  if (std::isnan(v)) {
>+    ptr = std::copy_n(conv.conv().upper() ? "NAN" : "nan", 3, ptr);
>+  } else if (std::isinf(v)) {
>+    ptr = std::copy_n(conv.conv().upper() ? "INF" : "inf", 3, ptr);
>+  } else {
>+    return false;
>+  }
>+
>+  return sink->PutPaddedString(string_view(text, ptr - text), conv.width(), -1,
>+                               conv.flags().left);
>+}
>+
>+// Round up the last digit of the value.
>+// It will carry over and potentially overflow. 'exp' will be adjusted in that
>+// case.
>+template <FormatStyle mode>
>+void RoundUp(Buffer *buffer, int *exp) {
>+  char *p = &buffer->back();
>+  while (p >= buffer->begin && (*p == '9' || *p == '.')) {
>+    if (*p == '9') *p = '0';
>+    --p;
>+  }
>+
>+  if (p < buffer->begin) {
>+    *p = '1';
>+    buffer->begin = p;
>+    if (mode == FormatStyle::Precision) {
>+      std::swap(p[1], p[2]);  // move the .
>+      ++*exp;
>+      buffer->pop_back();
>+    }
>+  } else {
>+    ++*p;
>+  }
>+}
>+
>+void PrintExponent(int exp, char e, Buffer *out) {
>+  out->push_back(e);
>+  if (exp < 0) {
>+    out->push_back('-');
>+    exp = -exp;
>+  } else {
>+    out->push_back('+');
>+  }
>+  // Exponent digits.
>+  if (exp > 99) {
>+    out->push_back(exp / 100 + '0');
>+    out->push_back(exp / 10 % 10 + '0');
>+    out->push_back(exp % 10 + '0');
>+  } else {
>+    out->push_back(exp / 10 + '0');
>+    out->push_back(exp % 10 + '0');
>+  }
>+}
>+
>+template <typename Float, typename Int>
>+constexpr bool CanFitMantissa() {
>+  return
>+#if defined(__clang__) && !defined(__SSE3__)
>+      // Workaround for clang bug: https://bugs.llvm.org/show_bug.cgi?id=38289
>+      // Casting from long double to uint64_t is miscompiled and drops bits.
>+      (!std::is_same<Float, long double>::value ||
>+       !std::is_same<Int, uint64_t>::value) &&
>+#endif
>+      std::numeric_limits<Float>::digits <= std::numeric_limits<Int>::digits;
>+}
>+
>+template <typename Float>
>+struct Decomposed {
>+  Float mantissa;
>+  int exponent;
>+};
>+
>+// Decompose the double into an integer mantissa and an exponent.
>+template <typename Float>
>+Decomposed<Float> Decompose(Float v) {
>+  int exp;
>+  Float m = std::frexp(v, &exp);
>+  m = std::ldexp(m, std::numeric_limits<Float>::digits);
>+  exp -= std::numeric_limits<Float>::digits;
>+  return {m, exp};
>+}
>+
>+// Print 'digits' as decimal.
>+// In Fixed mode, we add a '.' at the end.
>+// In Precision mode, we add a '.' after the first digit.
>+template <FormatStyle mode, typename Int>
>+int PrintIntegralDigits(Int digits, Buffer *out) {
>+  int printed = 0;
>+  if (digits) {
>+    for (; digits; digits /= 10) out->push_front(digits % 10 + '0');
>+    printed = out->size();
>+    if (mode == FormatStyle::Precision) {
>+      out->push_front(*out->begin);
>+      out->begin[1] = '.';
>+    } else {
>+      out->push_back('.');
>+    }
>+  } else if (mode == FormatStyle::Fixed) {
>+    out->push_front('0');
>+    out->push_back('.');
>+    printed = 1;
>+  }
>+  return printed;
>+}
>+
>+// Back out 'extra_digits' digits and round up if necessary.
>+bool RemoveExtraPrecision(int extra_digits, bool has_leftover_value,
>+                          Buffer *out, int *exp_out) {
>+  if (extra_digits <= 0) return false;
>+
>+  // Back out the extra digits
>+  out->end -= extra_digits;
>+
>+  bool needs_to_round_up = [&] {
>+    // We look at the digit just past the end.
>+    // There must be 'extra_digits' extra valid digits after end.
>+    if (*out->end > '5') return true;
>+    if (*out->end < '5') return false;
>+    if (has_leftover_value || std::any_of(out->end + 1, out->end + extra_digits,
>+                                          [](char c) { return c != '0'; }))
>+      return true;
>+
>+    // Ends in ...50*, round to even.
>+    return out->last_digit() % 2 == 1;
>+  }();
>+
>+  if (needs_to_round_up) {
>+    RoundUp<FormatStyle::Precision>(out, exp_out);
>+  }
>+  return true;
>+}
>+
>+// Print the value into the buffer.
>+// This will not include the exponent, which will be returned in 'exp_out' for
>+// Precision mode.
>+template <typename Int, typename Float, FormatStyle mode>
>+bool FloatToBufferImpl(Int int_mantissa, int exp, int precision, Buffer *out,
>+                       int *exp_out) {
>+  assert((CanFitMantissa<Float, Int>()));
>+
>+  const int int_bits = std::numeric_limits<Int>::digits;
>+
>+  // In precision mode, we start printing one char to the right because it will
>+  // also include the '.'
>+  // In fixed mode we put the dot afterwards on the right.
>+  out->begin = out->end =
>+      out->data + 1 + kMaxFixedPrecision + (mode == FormatStyle::Precision);
>+
>+  if (exp >= 0) {
>+    if (std::numeric_limits<Float>::digits + exp > int_bits) {
>+      // The value will overflow the Int
>+      return false;
>+    }
>+    int digits_printed = PrintIntegralDigits<mode>(int_mantissa << exp, out);
>+    int digits_to_zero_pad = precision;
>+    if (mode == FormatStyle::Precision) {
>+      *exp_out = digits_printed - 1;
>+      digits_to_zero_pad -= digits_printed - 1;
>+      if (RemoveExtraPrecision(-digits_to_zero_pad, false, out, exp_out)) {
>+        return true;
>+      }
>+    }
>+    for (; digits_to_zero_pad-- > 0;) out->push_back('0');
>+    return true;
>+  }
>+
>+  exp = -exp;
>+  // We need at least 4 empty bits for the next decimal digit.
>+  // We will multiply by 10.
>+  if (exp > int_bits - 4) return false;
>+
>+  const Int mask = (Int{1} << exp) - 1;
>+
>+  // Print the integral part first.
>+  int digits_printed = PrintIntegralDigits<mode>(int_mantissa >> exp, out);
>+  int_mantissa &= mask;
>+
>+  int fractional_count = precision;
>+  if (mode == FormatStyle::Precision) {
>+    if (digits_printed == 0) {
>+      // Find the first non-zero digit, when in Precision mode.
>+      *exp_out = 0;
>+      if (int_mantissa) {
>+        while (int_mantissa <= mask) {
>+          int_mantissa *= 10;
>+          --*exp_out;
>+        }
>+      }
>+      out->push_front(static_cast<char>(int_mantissa >> exp) + '0');
>+      out->push_back('.');
>+      int_mantissa &= mask;
>+    } else {
>+      // We already have a digit, and a '.'
>+      *exp_out = digits_printed - 1;
>+      fractional_count -= *exp_out;
>+      if (RemoveExtraPrecision(-fractional_count, int_mantissa != 0, out,
>+                               exp_out)) {
>+        // If we had enough digits, return right away.
>+        // The code below will try to round again otherwise.
>+        return true;
>+      }
>+    }
>+  }
>+
>+  auto get_next_digit = [&] {
>+    int_mantissa *= 10;
>+    int digit = static_cast<int>(int_mantissa >> exp);
>+    int_mantissa &= mask;
>+    return digit;
>+  };
>+
>+  // Print fractional_count more digits, if available.
>+  for (; fractional_count > 0; --fractional_count) {
>+    out->push_back(get_next_digit() + '0');
>+  }
>+
>+  int next_digit = get_next_digit();
>+  if (next_digit > 5 ||
>+      (next_digit == 5 && (int_mantissa || out->last_digit() % 2 == 1))) {
>+    RoundUp<mode>(out, exp_out);
>+  }
>+
>+  return true;
>+}
>+
>+template <FormatStyle mode, typename Float>
>+bool FloatToBuffer(Decomposed<Float> decomposed, int precision, Buffer *out,
>+                   int *exp) {
>+  if (precision > kMaxFixedPrecision) return false;
>+
>+  // Try with uint64_t.
>+  if (CanFitMantissa<Float, std::uint64_t>() &&
>+      FloatToBufferImpl<std::uint64_t, Float, mode>(
>+          static_cast<std::uint64_t>(decomposed.mantissa),
>+          static_cast<std::uint64_t>(decomposed.exponent), precision, out, exp))
>+    return true;
>+
>+#if defined(__SIZEOF_INT128__)
>+  // If that is not enough, try with __uint128_t.
>+  return CanFitMantissa<Float, __uint128_t>() &&
>+         FloatToBufferImpl<__uint128_t, Float, mode>(
>+             static_cast<__uint128_t>(decomposed.mantissa),
>+             static_cast<__uint128_t>(decomposed.exponent), precision, out,
>+             exp);
>+#endif
>+  return false;
>+}
>+
>+void WriteBufferToSink(char sign_char, string_view str,
>+                       const ConversionSpec &conv, FormatSinkImpl *sink) {
>+  int left_spaces = 0, zeros = 0, right_spaces = 0;
>+  int missing_chars =
>+      conv.width() >= 0 ? std::max(conv.width() - static_cast<int>(str.size()) -
>+                                       static_cast<int>(sign_char != 0),
>+                                   0)
>+                        : 0;
>+  if (conv.flags().left) {
>+    right_spaces = missing_chars;
>+  } else if (conv.flags().zero) {
>+    zeros = missing_chars;
>+  } else {
>+    left_spaces = missing_chars;
>+  }
>+
>+  sink->Append(left_spaces, ' ');
>+  if (sign_char) sink->Append(1, sign_char);
>+  sink->Append(zeros, '0');
>+  sink->Append(str);
>+  sink->Append(right_spaces, ' ');
>+}
>+
>+template <typename Float>
>+bool FloatToSink(const Float v, const ConversionSpec &conv,
>+                 FormatSinkImpl *sink) {
>+  // Print the sign or the sign column.
>+  Float abs_v = v;
>+  char sign_char = 0;
>+  if (std::signbit(abs_v)) {
>+    sign_char = '-';
>+    abs_v = -abs_v;
>+  } else if (conv.flags().show_pos) {
>+    sign_char = '+';
>+  } else if (conv.flags().sign_col) {
>+    sign_char = ' ';
>+  }
>+
>+  // Print nan/inf.
>+  if (ConvertNonNumericFloats(sign_char, abs_v, conv, sink)) {
>+    return true;
>+  }
>+
>+  int precision = conv.precision() < 0 ? 6 : conv.precision();
>+
>+  int exp = 0;
>+
>+  auto decomposed = Decompose(abs_v);
>+
>+  Buffer buffer;
>+
>+  switch (conv.conv().id()) {
>+    case ConversionChar::f:
>+    case ConversionChar::F:
>+      if (!FloatToBuffer<FormatStyle::Fixed>(decomposed, precision, &buffer,
>+                                             nullptr)) {
>+        return FallbackToSnprintf(v, conv, sink);
>+      }
>+      if (!conv.flags().alt && buffer.back() == '.') buffer.pop_back();
>+      break;
>+
>+    case ConversionChar::e:
>+    case ConversionChar::E:
>+      if (!FloatToBuffer<FormatStyle::Precision>(decomposed, precision, &buffer,
>+                                                 &exp)) {
>+        return FallbackToSnprintf(v, conv, sink);
>+      }
>+      if (!conv.flags().alt && buffer.back() == '.') buffer.pop_back();
>+      PrintExponent(exp, conv.conv().upper() ? 'E' : 'e', &buffer);
>+      break;
>+
>+    case ConversionChar::g:
>+    case ConversionChar::G:
>+      precision = std::max(0, precision - 1);
>+      if (!FloatToBuffer<FormatStyle::Precision>(decomposed, precision, &buffer,
>+                                                 &exp)) {
>+        return FallbackToSnprintf(v, conv, sink);
>+      }
>+      if (precision + 1 > exp && exp >= -4) {
>+        if (exp < 0) {
>+          // Have 1.23456, needs 0.00123456
>+          // Move the first digit
>+          buffer.begin[1] = *buffer.begin;
>+          // Add some zeros
>+          for (; exp < -1; ++exp) *buffer.begin-- = '0';
>+          *buffer.begin-- = '.';
>+          *buffer.begin = '0';
>+        } else if (exp > 0) {
>+          // Have 1.23456, needs 1234.56
>+          // Move the '.' exp positions to the right.
>+          std::rotate(buffer.begin + 1, buffer.begin + 2,
>+                      buffer.begin + exp + 2);
>+        }
>+        exp = 0;
>+      }
>+      if (!conv.flags().alt) {
>+        while (buffer.back() == '0') buffer.pop_back();
>+        if (buffer.back() == '.') buffer.pop_back();
>+      }
>+      if (exp) PrintExponent(exp, conv.conv().upper() ? 'E' : 'e', &buffer);
>+      break;
>+
>+    case ConversionChar::a:
>+    case ConversionChar::A:
>+      return FallbackToSnprintf(v, conv, sink);
>+
>+    default:
>+      return false;
>+  }
>+
>+  WriteBufferToSink(sign_char,
>+                    string_view(buffer.begin, buffer.end - buffer.begin), conv,
>+                    sink);
>+
>+  return true;
>+}
>+
>+}  // namespace
>+
>+bool ConvertFloatImpl(long double v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink) {
>+  return FloatToSink(v, conv, sink);
>+}
>+
>+bool ConvertFloatImpl(float v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink) {
>+  return FloatToSink(v, conv, sink);
>+}
>+
>+bool ConvertFloatImpl(double v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink) {
>+  return FloatToSink(v, conv, sink);
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8ba5566d3eefa28e085f53c6ff74c500ababa47d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.h
>@@ -0,0 +1,21 @@
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_FLOAT_CONVERSION_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_FLOAT_CONVERSION_H_
>+
>+#include "absl/strings/internal/str_format/extension.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+bool ConvertFloatImpl(float v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink);
>+
>+bool ConvertFloatImpl(double v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink);
>+
>+bool ConvertFloatImpl(long double v, const ConversionSpec &conv,
>+                      FormatSinkImpl *sink);
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_FLOAT_CONVERSION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c3795b737ca1bccc5de9bba753c34ab6c62073e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.cc
>@@ -0,0 +1,47 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/str_format/output.h"
>+
>+#include <errno.h>
>+#include <cstring>
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+void BufferRawSink::Write(string_view v) {
>+  size_t to_write = std::min(v.size(), size_);
>+  std::memcpy(buffer_, v.data(), to_write);
>+  buffer_ += to_write;
>+  size_ -= to_write;
>+  total_written_ += v.size();
>+}
>+
>+void FILERawSink::Write(string_view v) {
>+  while (!v.empty() && !error_) {
>+    if (size_t result = std::fwrite(v.data(), 1, v.size(), output_)) {
>+      // Some progress was made.
>+      count_ += result;
>+      v.remove_prefix(result);
>+    } else {
>+      // Some error occurred.
>+      if (errno != EINTR) {
>+        error_ = errno;
>+      }
>+    }
>+  }
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3b0aa5e7157ecbdaf8f243e44a13a751638b575d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output.h
>@@ -0,0 +1,101 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Output extension hooks for the Format library.
>+// `internal::InvokeFlush` calls the appropriate flush function for the
>+// specified output argument.
>+// `BufferRawSink` is a simple output sink for a char buffer. Used by SnprintF.
>+// `FILERawSink` is a std::FILE* based sink. Used by PrintF and FprintF.
>+
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_OUTPUT_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_OUTPUT_H_
>+
>+#include <cstdio>
>+#include <ostream>
>+#include <string>
>+
>+#include "absl/base/port.h"
>+#include "absl/strings/string_view.h"
>+
>+class Cord;
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+// RawSink implementation that writes into a char* buffer.
>+// It will not overflow the buffer, but will keep the total count of chars
>+// that would have been written.
>+class BufferRawSink {
>+ public:
>+  BufferRawSink(char* buffer, size_t size) : buffer_(buffer), size_(size) {}
>+
>+  size_t total_written() const { return total_written_; }
>+  void Write(string_view v);
>+
>+ private:
>+  char* buffer_;
>+  size_t size_;
>+  size_t total_written_ = 0;
>+};
>+
>+// RawSink implementation that writes into a FILE*.
>+// It keeps track of the total number of bytes written and any error encountered
>+// during the writes.
>+class FILERawSink {
>+ public:
>+  explicit FILERawSink(std::FILE* output) : output_(output) {}
>+
>+  void Write(string_view v);
>+
>+  size_t count() const { return count_; }
>+  int error() const { return error_; }
>+
>+ private:
>+  std::FILE* output_;
>+  int error_ = 0;
>+  size_t count_ = 0;
>+};
>+
>+// Provide RawSink integration with common types from the STL.
>+inline void AbslFormatFlush(std::string* out, string_view s) {
>+  out->append(s.begin(), s.size());
>+}
>+inline void AbslFormatFlush(std::ostream* out, string_view s) {
>+  out->write(s.begin(), s.size());
>+}
>+
>+template <class AbslCord, typename = typename std::enable_if<
>+                              std::is_same<AbslCord, ::Cord>::value>::type>
>+inline void AbslFormatFlush(AbslCord* out, string_view s) {
>+  out->Append(s);
>+}
>+
>+inline void AbslFormatFlush(FILERawSink* sink, string_view v) {
>+  sink->Write(v);
>+}
>+
>+inline void AbslFormatFlush(BufferRawSink* sink, string_view v) {
>+  sink->Write(v);
>+}
>+
>+template <typename T>
>+auto InvokeFlush(T* out, string_view s)
>+    -> decltype(str_format_internal::AbslFormatFlush(out, s)) {
>+  str_format_internal::AbslFormatFlush(out, s);
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_OUTPUT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc3c615557fef44bf813911f7bde8e0c8c8061f4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/output_test.cc
>@@ -0,0 +1,78 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/str_format/output.h"
>+
>+#include <sstream>
>+#include <string>
>+
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace {
>+
>+TEST(InvokeFlush, String) {
>+  std::string str = "ABC";
>+  str_format_internal::InvokeFlush(&str, "DEF");
>+  EXPECT_EQ(str, "ABCDEF");
>+
>+#if UTIL_FORMAT_HAS_GLOBAL_STRING
>+  std::string str2 = "ABC";
>+  str_format_internal::InvokeFlush(&str2, "DEF");
>+  EXPECT_EQ(str2, "ABCDEF");
>+#endif  // UTIL_FORMAT_HAS_GLOBAL_STRING
>+}
>+
>+TEST(InvokeFlush, Stream) {
>+  std::stringstream str;
>+  str << "ABC";
>+  str_format_internal::InvokeFlush(&str, "DEF");
>+  EXPECT_EQ(str.str(), "ABCDEF");
>+}
>+
>+TEST(BufferRawSink, Limits) {
>+  char buf[16];
>+  {
>+    std::fill(std::begin(buf), std::end(buf), 'x');
>+    str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
>+    str_format_internal::InvokeFlush(&bufsink, "Hello World237");
>+    EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World237xx");
>+  }
>+  {
>+    std::fill(std::begin(buf), std::end(buf), 'x');
>+    str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
>+    str_format_internal::InvokeFlush(&bufsink, "Hello World237237");
>+    EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World2372x");
>+  }
>+  {
>+    std::fill(std::begin(buf), std::end(buf), 'x');
>+    str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
>+    str_format_internal::InvokeFlush(&bufsink, "Hello World");
>+    str_format_internal::InvokeFlush(&bufsink, "237");
>+    EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World237xx");
>+  }
>+  {
>+    std::fill(std::begin(buf), std::end(buf), 'x');
>+    str_format_internal::BufferRawSink bufsink(buf, sizeof(buf) - 1);
>+    str_format_internal::InvokeFlush(&bufsink, "Hello World");
>+    str_format_internal::InvokeFlush(&bufsink, "237237");
>+    EXPECT_EQ(std::string(buf, sizeof(buf)), "Hello World2372x");
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace absl
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..10114f489c0189f0586149685378e13a8df94684
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.cc
>@@ -0,0 +1,294 @@
>+#include "absl/strings/internal/str_format/parser.h"
>+
>+#include <assert.h>
>+#include <string.h>
>+#include <wchar.h>
>+#include <cctype>
>+#include <cstdint>
>+
>+#include <algorithm>
>+#include <initializer_list>
>+#include <limits>
>+#include <ostream>
>+#include <string>
>+#include <unordered_set>
>+
>+namespace absl {
>+namespace str_format_internal {
>+namespace {
>+
>+bool CheckFastPathSetting(const UnboundConversion& conv) {
>+  bool should_be_basic = !conv.flags.left &&      //
>+                         !conv.flags.show_pos &&  //
>+                         !conv.flags.sign_col &&  //
>+                         !conv.flags.alt &&       //
>+                         !conv.flags.zero &&      //
>+                         (conv.width.value() == -1) &&
>+                         (conv.precision.value() == -1);
>+  if (should_be_basic != conv.flags.basic) {
>+    fprintf(stderr,
>+            "basic=%d left=%d show_pos=%d sign_col=%d alt=%d zero=%d "
>+            "width=%d precision=%d\n",
>+            conv.flags.basic, conv.flags.left, conv.flags.show_pos,
>+            conv.flags.sign_col, conv.flags.alt, conv.flags.zero,
>+            conv.width.value(), conv.precision.value());
>+  }
>+  return should_be_basic == conv.flags.basic;
>+}
>+
>+// Keep a single table for all the conversion chars and length modifiers.
>+// We invert the length modifiers to make them negative so that we can easily
>+// test for them.
>+// Everything else is `none`, which is a negative constant.
>+using CC = ConversionChar::Id;
>+using LM = LengthMod::Id;
>+static constexpr std::int8_t none = -128;
>+static constexpr std::int8_t kIds[] = {
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 00-07
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 08-0f
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 10-17
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 18-1f
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 20-27
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 28-2f
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 30-37
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 38-3f
>+    none,   CC::A,  none,   CC::C, none,   CC::E, CC::F, CC::G,  // @ABCDEFG
>+    none,   none,   none,   none,  ~LM::L, none,  none,  none,   // HIJKLMNO
>+    none,   none,   none,   CC::S, none,   none,  none,  none,   // PQRSTUVW
>+    CC::X,  none,   none,   none,  none,   none,  none,  none,   // XYZ[\]^_
>+    none,   CC::a,  none,   CC::c, CC::d,  CC::e, CC::f, CC::g,  // `abcdefg
>+    ~LM::h, CC::i,  ~LM::j, none,  ~LM::l, none,  CC::n, CC::o,  // hijklmno
>+    CC::p,  ~LM::q, none,   CC::s, ~LM::t, CC::u, none,  none,   // pqrstuvw
>+    CC::x,  none,   ~LM::z, none,  none,   none,  none,  none,   // xyz{|}~!
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 80-87
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 88-8f
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 90-97
>+    none,   none,   none,   none,  none,   none,  none,  none,   // 98-9f
>+    none,   none,   none,   none,  none,   none,  none,  none,   // a0-a7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // a8-af
>+    none,   none,   none,   none,  none,   none,  none,  none,   // b0-b7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // b8-bf
>+    none,   none,   none,   none,  none,   none,  none,  none,   // c0-c7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // c8-cf
>+    none,   none,   none,   none,  none,   none,  none,  none,   // d0-d7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // d8-df
>+    none,   none,   none,   none,  none,   none,  none,  none,   // e0-e7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // e8-ef
>+    none,   none,   none,   none,  none,   none,  none,  none,   // f0-f7
>+    none,   none,   none,   none,  none,   none,  none,  none,   // f8-ff
>+};
>+
>+template <bool is_positional>
>+bool ConsumeConversion(string_view *src, UnboundConversion *conv,
>+                       int *next_arg) {
>+  const char *pos = src->begin();
>+  const char *const end = src->end();
>+  char c;
>+  // Read the next char into `c` and update `pos`. Reads '\0' if at end.
>+  const auto get_char = [&] { c = pos == end ? '\0' : *pos++; };
>+
>+  const auto parse_digits = [&] {
>+    int digits = c - '0';
>+    // We do not want to overflow `digits` so we consume at most digits10-1
>+    // digits. If there are more digits the parsing will fail later on when the
>+    // digit doesn't match the expected characters.
>+    int num_digits = std::numeric_limits<int>::digits10 - 2;
>+    for (get_char(); num_digits && std::isdigit(c); get_char()) {
>+      --num_digits;
>+      digits = 10 * digits + c - '0';
>+    }
>+    return digits;
>+  };
>+
>+  if (is_positional) {
>+    get_char();
>+    if (c < '1' || c > '9') return false;
>+    conv->arg_position = parse_digits();
>+    assert(conv->arg_position > 0);
>+    if (c != '$') return false;
>+  }
>+
>+  get_char();
>+
>+  // We should start with the basic flag on.
>+  assert(conv->flags.basic);
>+
>+  // Any non alpha character makes this conversion not basic.
>+  // This includes flags (-+ #0), width (1-9, *) or precision (.).
>+  // All conversion characters and length modifiers are alpha characters.
>+  if (c < 'A') {
>+    conv->flags.basic = false;
>+
>+    for (; c <= '0'; get_char()) {
>+      switch (c) {
>+        case '-':
>+          conv->flags.left = true;
>+          continue;
>+        case '+':
>+          conv->flags.show_pos = true;
>+          continue;
>+        case ' ':
>+          conv->flags.sign_col = true;
>+          continue;
>+        case '#':
>+          conv->flags.alt = true;
>+          continue;
>+        case '0':
>+          conv->flags.zero = true;
>+          continue;
>+      }
>+      break;
>+    }
>+
>+    if (c <= '9') {
>+      if (c >= '0') {
>+        int maybe_width = parse_digits();
>+        if (!is_positional && c == '$') {
>+          if (*next_arg != 0) return false;
>+          // Positional conversion.
>+          *next_arg = -1;
>+          conv->flags = Flags();
>+          conv->flags.basic = true;
>+          return ConsumeConversion<true>(src, conv, next_arg);
>+        }
>+        conv->width.set_value(maybe_width);
>+      } else if (c == '*') {
>+        get_char();
>+        if (is_positional) {
>+          if (c < '1' || c > '9') return false;
>+          conv->width.set_from_arg(parse_digits());
>+          if (c != '$') return false;
>+          get_char();
>+        } else {
>+          conv->width.set_from_arg(++*next_arg);
>+        }
>+      }
>+    }
>+
>+    if (c == '.') {
>+      get_char();
>+      if (std::isdigit(c)) {
>+        conv->precision.set_value(parse_digits());
>+      } else if (c == '*') {
>+        get_char();
>+        if (is_positional) {
>+          if (c < '1' || c > '9') return false;
>+          conv->precision.set_from_arg(parse_digits());
>+          if (c != '$') return false;
>+          get_char();
>+        } else {
>+          conv->precision.set_from_arg(++*next_arg);
>+        }
>+      } else {
>+        conv->precision.set_value(0);
>+      }
>+    }
>+  }
>+
>+  std::int8_t id = kIds[static_cast<unsigned char>(c)];
>+
>+  if (id < 0) {
>+    if (id == none) return false;
>+
>+    // It is a length modifier.
>+    using str_format_internal::LengthMod;
>+    LengthMod length_mod = LengthMod::FromId(static_cast<LM>(~id));
>+    get_char();
>+    if (c == 'h' && length_mod.id() == LengthMod::h) {
>+      conv->length_mod = LengthMod::FromId(LengthMod::hh);
>+      get_char();
>+    } else if (c == 'l' && length_mod.id() == LengthMod::l) {
>+      conv->length_mod = LengthMod::FromId(LengthMod::ll);
>+      get_char();
>+    } else {
>+      conv->length_mod = length_mod;
>+    }
>+    id = kIds[static_cast<unsigned char>(c)];
>+    if (id < 0) return false;
>+  }
>+
>+  assert(CheckFastPathSetting(*conv));
>+  (void)(&CheckFastPathSetting);
>+
>+  conv->conv = ConversionChar::FromId(static_cast<CC>(id));
>+  if (!is_positional) conv->arg_position = ++*next_arg;
>+  *src = string_view(pos, end - pos);
>+  return true;
>+}
>+
>+}  // namespace
>+
>+bool ConsumeUnboundConversion(string_view *src, UnboundConversion *conv,
>+                              int *next_arg) {
>+  if (*next_arg < 0) return ConsumeConversion<true>(src, conv, next_arg);
>+  return ConsumeConversion<false>(src, conv, next_arg);
>+}
>+
>+struct ParsedFormatBase::ParsedFormatConsumer {
>+  explicit ParsedFormatConsumer(ParsedFormatBase *parsedformat)
>+      : parsed(parsedformat), data_pos(parsedformat->data_.get()) {}
>+
>+  bool Append(string_view s) {
>+    if (s.empty()) return true;
>+
>+    size_t text_end = AppendText(s);
>+
>+    if (!parsed->items_.empty() && !parsed->items_.back().is_conversion) {
>+      // Let's extend the existing text run.
>+      parsed->items_.back().text_end = text_end;
>+    } else {
>+      // Let's make a new text run.
>+      parsed->items_.push_back({false, text_end, {}});
>+    }
>+    return true;
>+  }
>+
>+  bool ConvertOne(const UnboundConversion &conv, string_view s) {
>+    size_t text_end = AppendText(s);
>+    parsed->items_.push_back({true, text_end, conv});
>+    return true;
>+  }
>+
>+  size_t AppendText(string_view s) {
>+    memcpy(data_pos, s.data(), s.size());
>+    data_pos += s.size();
>+    return static_cast<size_t>(data_pos - parsed->data_.get());
>+  }
>+
>+  ParsedFormatBase *parsed;
>+  char* data_pos;
>+};
>+
>+ParsedFormatBase::ParsedFormatBase(string_view format, bool allow_ignored,
>+                                   std::initializer_list<Conv> convs)
>+    : data_(format.empty() ? nullptr : new char[format.size()]) {
>+  has_error_ = !ParseFormatString(format, ParsedFormatConsumer(this)) ||
>+               !MatchesConversions(allow_ignored, convs);
>+}
>+
>+bool ParsedFormatBase::MatchesConversions(
>+    bool allow_ignored, std::initializer_list<Conv> convs) const {
>+  std::unordered_set<int> used;
>+  auto add_if_valid_conv = [&](int pos, char c) {
>+      if (static_cast<size_t>(pos) > convs.size() ||
>+          !Contains(convs.begin()[pos - 1], c))
>+        return false;
>+      used.insert(pos);
>+      return true;
>+  };
>+  for (const ConversionItem &item : items_) {
>+    if (!item.is_conversion) continue;
>+    auto &conv = item.conv;
>+    if (conv.precision.is_from_arg() &&
>+        !add_if_valid_conv(conv.precision.get_from_arg(), '*'))
>+      return false;
>+    if (conv.width.is_from_arg() &&
>+        !add_if_valid_conv(conv.width.get_from_arg(), '*'))
>+      return false;
>+    if (!add_if_valid_conv(conv.arg_position, conv.conv.Char())) return false;
>+  }
>+  return used.size() == convs.size() || allow_ignored;
>+}
>+
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..5bebc95540e6c28d39d0847305366742ced9edfa
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser.h
>@@ -0,0 +1,291 @@
>+#ifndef ABSL_STRINGS_INTERNAL_STR_FORMAT_PARSER_H_
>+#define ABSL_STRINGS_INTERNAL_STR_FORMAT_PARSER_H_
>+
>+#include <limits.h>
>+#include <stddef.h>
>+#include <stdlib.h>
>+
>+#include <cassert>
>+#include <initializer_list>
>+#include <iosfwd>
>+#include <iterator>
>+#include <memory>
>+#include <vector>
>+
>+#include "absl/strings/internal/str_format/checker.h"
>+#include "absl/strings/internal/str_format/extension.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+// The analyzed properties of a single specified conversion.
>+struct UnboundConversion {
>+  UnboundConversion()
>+      : flags() /* This is required to zero all the fields of flags. */ {
>+    flags.basic = true;
>+  }
>+
>+  class InputValue {
>+   public:
>+    void set_value(int value) {
>+      assert(value >= 0);
>+      value_ = value;
>+    }
>+    int value() const { return value_; }
>+
>+    // Marks the value as "from arg". aka the '*' format.
>+    // Requires `value >= 1`.
>+    // When set, is_from_arg() return true and get_from_arg() returns the
>+    // original value.
>+    // `value()`'s return value is unspecfied in this state.
>+    void set_from_arg(int value) {
>+      assert(value > 0);
>+      value_ = -value - 1;
>+    }
>+    bool is_from_arg() const { return value_ < -1; }
>+    int get_from_arg() const {
>+      assert(is_from_arg());
>+      return -value_ - 1;
>+    }
>+
>+   private:
>+    int value_ = -1;
>+  };
>+
>+  // No need to initialize. It will always be set in the parser.
>+  int arg_position;
>+
>+  InputValue width;
>+  InputValue precision;
>+
>+  Flags flags;
>+  LengthMod length_mod;
>+  ConversionChar conv;
>+};
>+
>+// Consume conversion spec prefix (not including '%') of '*src' if valid.
>+// Examples of valid specs would be e.g.: "s", "d", "-12.6f".
>+// If valid, the front of src is advanced such that src becomes the
>+// part following the conversion spec, and the spec part is broken down and
>+// returned in 'conv'.
>+// If invalid, returns false and leaves 'src' unmodified.
>+// For example:
>+//   Given "d9", returns "d", and leaves src="9",
>+//   Given "!", returns "" and leaves src="!".
>+bool ConsumeUnboundConversion(string_view* src, UnboundConversion* conv,
>+                              int* next_arg);
>+
>+// Parse the format std::string provided in 'src' and pass the identified items into
>+// 'consumer'.
>+// Text runs will be passed by calling
>+//   Consumer::Append(string_view);
>+// ConversionItems will be passed by calling
>+//   Consumer::ConvertOne(UnboundConversion, string_view);
>+// In the case of ConvertOne, the string_view that is passed is the
>+// portion of the format std::string corresponding to the conversion, not including
>+// the leading %. On success, it returns true. On failure, it stops and returns
>+// false.
>+template <typename Consumer>
>+bool ParseFormatString(string_view src, Consumer consumer) {
>+  int next_arg = 0;
>+  while (!src.empty()) {
>+    const char* percent =
>+        static_cast<const char*>(memchr(src.begin(), '%', src.size()));
>+    if (!percent) {
>+      // We found the last substring.
>+      return consumer.Append(src);
>+    }
>+    // We found a percent, so push the text run then process the percent.
>+    size_t percent_loc = percent - src.data();
>+    if (!consumer.Append(string_view(src.data(), percent_loc))) return false;
>+    if (percent + 1 >= src.end()) return false;
>+
>+    UnboundConversion conv;
>+
>+    switch (percent[1]) {
>+      case '%':
>+        if (!consumer.Append("%")) return false;
>+        src.remove_prefix(percent_loc + 2);
>+        continue;
>+
>+#define PARSER_CASE(ch)                                     \
>+  case #ch[0]:                                              \
>+    src.remove_prefix(percent_loc + 2);                     \
>+    conv.conv = ConversionChar::FromId(ConversionChar::ch); \
>+    conv.arg_position = ++next_arg;                         \
>+    break;
>+        ABSL_CONVERSION_CHARS_EXPAND_(PARSER_CASE, );
>+#undef PARSER_CASE
>+
>+      default:
>+        src.remove_prefix(percent_loc + 1);
>+        if (!ConsumeUnboundConversion(&src, &conv, &next_arg)) return false;
>+        break;
>+    }
>+    if (next_arg == 0) {
>+      // This indicates an error in the format std::string.
>+      // The only way to get next_arg == 0 is to have a positional argument
>+      // first which sets next_arg to -1 and then a non-positional argument
>+      // which does ++next_arg.
>+      // Checking here seems to be the cheapeast place to do it.
>+      return false;
>+    }
>+    if (!consumer.ConvertOne(
>+            conv, string_view(percent + 1, src.data() - (percent + 1)))) {
>+      return false;
>+    }
>+  }
>+  return true;
>+}
>+
>+// Always returns true, or fails to compile in a constexpr context if s does not
>+// point to a constexpr char array.
>+constexpr bool EnsureConstexpr(string_view s) {
>+  return s.empty() || s[0] == s[0];
>+}
>+
>+class ParsedFormatBase {
>+ public:
>+  explicit ParsedFormatBase(string_view format, bool allow_ignored,
>+                            std::initializer_list<Conv> convs);
>+
>+  ParsedFormatBase(const ParsedFormatBase& other) { *this = other; }
>+
>+  ParsedFormatBase(ParsedFormatBase&& other) { *this = std::move(other); }
>+
>+  ParsedFormatBase& operator=(const ParsedFormatBase& other) {
>+    if (this == &other) return *this;
>+    has_error_ = other.has_error_;
>+    items_ = other.items_;
>+    size_t text_size = items_.empty() ? 0 : items_.back().text_end;
>+    data_.reset(new char[text_size]);
>+    memcpy(data_.get(), other.data_.get(), text_size);
>+    return *this;
>+  }
>+
>+  ParsedFormatBase& operator=(ParsedFormatBase&& other) {
>+    if (this == &other) return *this;
>+    has_error_ = other.has_error_;
>+    data_ = std::move(other.data_);
>+    items_ = std::move(other.items_);
>+    // Reset the vector to make sure the invariants hold.
>+    other.items_.clear();
>+    return *this;
>+  }
>+
>+  template <typename Consumer>
>+  bool ProcessFormat(Consumer consumer) const {
>+    const char* const base = data_.get();
>+    string_view text(base, 0);
>+    for (const auto& item : items_) {
>+      text = string_view(text.end(), (base + item.text_end) - text.end());
>+      if (item.is_conversion) {
>+        if (!consumer.ConvertOne(item.conv, text)) return false;
>+      } else {
>+        if (!consumer.Append(text)) return false;
>+      }
>+    }
>+    return !has_error_;
>+  }
>+
>+  bool has_error() const { return has_error_; }
>+
>+ private:
>+  // Returns whether the conversions match and if !allow_ignored it verifies
>+  // that all conversions are used by the format.
>+  bool MatchesConversions(bool allow_ignored,
>+                          std::initializer_list<Conv> convs) const;
>+
>+  struct ParsedFormatConsumer;
>+
>+  struct ConversionItem {
>+    bool is_conversion;
>+    // Points to the past-the-end location of this element in the data_ array.
>+    size_t text_end;
>+    UnboundConversion conv;
>+  };
>+
>+  bool has_error_;
>+  std::unique_ptr<char[]> data_;
>+  std::vector<ConversionItem> items_;
>+};
>+
>+
>+// A value type representing a preparsed format.  These can be created, copied
>+// around, and reused to speed up formatting loops.
>+// The user must specify through the template arguments the conversion
>+// characters used in the format. This will be checked at compile time.
>+//
>+// This class uses Conv enum values to specify each argument.
>+// This allows for more flexibility as you can specify multiple possible
>+// conversion characters for each argument.
>+// ParsedFormat<char...> is a simplified alias for when the user only
>+// needs to specify a single conversion character for each argument.
>+//
>+// Example:
>+//   // Extended format supports multiple characters per argument:
>+//   using MyFormat = ExtendedParsedFormat<Conv::d | Conv::x>;
>+//   MyFormat GetFormat(bool use_hex) {
>+//     if (use_hex) return MyFormat("foo %x bar");
>+//     return MyFormat("foo %d bar");
>+//   }
>+//   // 'format' can be used with any value that supports 'd' and 'x',
>+//   // like `int`.
>+//   auto format = GetFormat(use_hex);
>+//   value = StringF(format, i);
>+//
>+// This class also supports runtime format checking with the ::New() and
>+// ::NewAllowIgnored() factory functions.
>+// This is the only API that allows the user to pass a runtime specified format
>+// std::string. These factory functions will return NULL if the format does not match
>+// the conversions requested by the user.
>+template <str_format_internal::Conv... C>
>+class ExtendedParsedFormat : public str_format_internal::ParsedFormatBase {
>+ public:
>+  explicit ExtendedParsedFormat(string_view format)
>+#if ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+      __attribute__((
>+          enable_if(str_format_internal::EnsureConstexpr(format),
>+                    "Format std::string is not constexpr."),
>+          enable_if(str_format_internal::ValidFormatImpl<C...>(format),
>+                    "Format specified does not match the template arguments.")))
>+#endif  // ABSL_INTERNAL_ENABLE_FORMAT_CHECKER
>+      : ExtendedParsedFormat(format, false) {
>+  }
>+
>+  // ExtendedParsedFormat factory function.
>+  // The user still has to specify the conversion characters, but they will not
>+  // be checked at compile time. Instead, it will be checked at runtime.
>+  // This delays the checking to runtime, but allows the user to pass
>+  // dynamically sourced formats.
>+  // It returns NULL if the format does not match the conversion characters.
>+  // The user is responsible for checking the return value before using it.
>+  //
>+  // The 'New' variant will check that all the specified arguments are being
>+  // consumed by the format and return NULL if any argument is being ignored.
>+  // The 'NewAllowIgnored' variant will not verify this and will allow formats
>+  // that ignore arguments.
>+  static std::unique_ptr<ExtendedParsedFormat> New(string_view format) {
>+    return New(format, false);
>+  }
>+  static std::unique_ptr<ExtendedParsedFormat> NewAllowIgnored(
>+      string_view format) {
>+    return New(format, true);
>+  }
>+
>+ private:
>+  static std::unique_ptr<ExtendedParsedFormat> New(string_view format,
>+                                                   bool allow_ignored) {
>+    std::unique_ptr<ExtendedParsedFormat> conv(
>+        new ExtendedParsedFormat(format, allow_ignored));
>+    if (conv->has_error()) return nullptr;
>+    return conv;
>+  }
>+
>+  ExtendedParsedFormat(string_view s, bool allow_ignored)
>+      : ParsedFormatBase(s, allow_ignored, {C...}) {}
>+};
>+}  // namespace str_format_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_FORMAT_PARSER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e698020b1aba38452c7b8899fd3ed2769b0c3e51
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_format/parser_test.cc
>@@ -0,0 +1,379 @@
>+#include "absl/strings/internal/str_format/parser.h"
>+
>+#include <string.h>
>+#include "gtest/gtest.h"
>+#include "absl/base/macros.h"
>+
>+namespace absl {
>+namespace str_format_internal {
>+
>+namespace {
>+
>+TEST(LengthModTest, Names) {
>+  struct Expectation {
>+    int line;
>+    LengthMod::Id id;
>+    const char *name;
>+  };
>+  const Expectation kExpect[] = {
>+    {__LINE__, LengthMod::none, ""  },
>+    {__LINE__, LengthMod::h,    "h" },
>+    {__LINE__, LengthMod::hh,   "hh"},
>+    {__LINE__, LengthMod::l,    "l" },
>+    {__LINE__, LengthMod::ll,   "ll"},
>+    {__LINE__, LengthMod::L,    "L" },
>+    {__LINE__, LengthMod::j,    "j" },
>+    {__LINE__, LengthMod::z,    "z" },
>+    {__LINE__, LengthMod::t,    "t" },
>+    {__LINE__, LengthMod::q,    "q" },
>+  };
>+  EXPECT_EQ(ABSL_ARRAYSIZE(kExpect), LengthMod::kNumValues);
>+  for (auto e : kExpect) {
>+    SCOPED_TRACE(e.line);
>+    LengthMod mod = LengthMod::FromId(e.id);
>+    EXPECT_EQ(e.id, mod.id());
>+    EXPECT_EQ(e.name, mod.name());
>+  }
>+}
>+
>+TEST(ConversionCharTest, Names) {
>+  struct Expectation {
>+    ConversionChar::Id id;
>+    char name;
>+  };
>+  // clang-format off
>+  const Expectation kExpect[] = {
>+#define X(c) {ConversionChar::c, #c[0]}
>+    X(c), X(C), X(s), X(S),                          // text
>+    X(d), X(i), X(o), X(u), X(x), X(X),              // int
>+    X(f), X(F), X(e), X(E), X(g), X(G), X(a), X(A),  // float
>+    X(n), X(p),                                      // misc
>+#undef X
>+    {ConversionChar::none, '\0'},
>+  };
>+  // clang-format on
>+  EXPECT_EQ(ABSL_ARRAYSIZE(kExpect), ConversionChar::kNumValues);
>+  for (auto e : kExpect) {
>+    SCOPED_TRACE(e.name);
>+    ConversionChar v = ConversionChar::FromId(e.id);
>+    EXPECT_EQ(e.id, v.id());
>+    EXPECT_EQ(e.name, v.Char());
>+  }
>+}
>+
>+class ConsumeUnboundConversionTest : public ::testing::Test {
>+ public:
>+  typedef UnboundConversion Props;
>+  string_view Consume(string_view* src) {
>+    int next = 0;
>+    const char* prev_begin = src->begin();
>+    o = UnboundConversion();  // refresh
>+    ConsumeUnboundConversion(src, &o, &next);
>+    return {prev_begin, static_cast<size_t>(src->begin() - prev_begin)};
>+  }
>+
>+  bool Run(const char *fmt, bool force_positional = false) {
>+    string_view src = fmt;
>+    int next = force_positional ? -1 : 0;
>+    o = UnboundConversion();  // refresh
>+    return ConsumeUnboundConversion(&src, &o, &next) && src.empty();
>+  }
>+  UnboundConversion o;
>+};
>+
>+TEST_F(ConsumeUnboundConversionTest, ConsumeSpecification) {
>+  struct Expectation {
>+    int line;
>+    const char *src;
>+    const char *out;
>+    const char *src_post;
>+  };
>+  const Expectation kExpect[] = {
>+    {__LINE__, "",     "",     ""  },
>+    {__LINE__, "b",    "",     "b" },  // 'b' is invalid
>+    {__LINE__, "ba",   "",     "ba"},  // 'b' is invalid
>+    {__LINE__, "l",    "",     "l" },  // just length mod isn't okay
>+    {__LINE__, "d",    "d",    ""  },  // basic
>+    {__LINE__, "d ",   "d",    " " },  // leave suffix
>+    {__LINE__, "dd",   "d",    "d" },  // don't be greedy
>+    {__LINE__, "d9",   "d",    "9" },  // leave non-space suffix
>+    {__LINE__, "dzz",  "d",    "zz"},  // length mod as suffix
>+    {__LINE__, "1$*2$d", "1$*2$d", ""  },  // arg indexing and * allowed.
>+    {__LINE__, "0-14.3hhd", "0-14.3hhd", ""},  // precision, width
>+    {__LINE__, " 0-+#14.3hhd", " 0-+#14.3hhd", ""},  // flags
>+  };
>+  for (const auto& e : kExpect) {
>+    SCOPED_TRACE(e.line);
>+    string_view src = e.src;
>+    EXPECT_EQ(e.src, src);
>+    string_view out = Consume(&src);
>+    EXPECT_EQ(e.out, out);
>+    EXPECT_EQ(e.src_post, src);
>+  }
>+}
>+
>+TEST_F(ConsumeUnboundConversionTest, BasicConversion) {
>+  EXPECT_FALSE(Run(""));
>+  EXPECT_FALSE(Run("z"));
>+
>+  EXPECT_FALSE(Run("dd"));  // no excess allowed
>+
>+  EXPECT_TRUE(Run("d"));
>+  EXPECT_EQ('d', o.conv.Char());
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_LT(o.width.value(), 0);
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_LT(o.precision.value(), 0);
>+  EXPECT_EQ(1, o.arg_position);
>+  EXPECT_EQ(LengthMod::none, o.length_mod.id());
>+}
>+
>+TEST_F(ConsumeUnboundConversionTest, ArgPosition) {
>+  EXPECT_TRUE(Run("d"));
>+  EXPECT_EQ(1, o.arg_position);
>+  EXPECT_TRUE(Run("3$d"));
>+  EXPECT_EQ(3, o.arg_position);
>+  EXPECT_TRUE(Run("1$d"));
>+  EXPECT_EQ(1, o.arg_position);
>+  EXPECT_TRUE(Run("1$d", true));
>+  EXPECT_EQ(1, o.arg_position);
>+  EXPECT_TRUE(Run("123$d"));
>+  EXPECT_EQ(123, o.arg_position);
>+  EXPECT_TRUE(Run("123$d", true));
>+  EXPECT_EQ(123, o.arg_position);
>+  EXPECT_TRUE(Run("10$d"));
>+  EXPECT_EQ(10, o.arg_position);
>+  EXPECT_TRUE(Run("10$d", true));
>+  EXPECT_EQ(10, o.arg_position);
>+
>+  // Position can't be zero.
>+  EXPECT_FALSE(Run("0$d"));
>+  EXPECT_FALSE(Run("0$d", true));
>+  EXPECT_FALSE(Run("1$*0$d"));
>+  EXPECT_FALSE(Run("1$.*0$d"));
>+
>+  // Position can't start with a zero digit at all. That is not a 'decimal'.
>+  EXPECT_FALSE(Run("01$p"));
>+  EXPECT_FALSE(Run("01$p", true));
>+  EXPECT_FALSE(Run("1$*01$p"));
>+  EXPECT_FALSE(Run("1$.*01$p"));
>+}
>+
>+TEST_F(ConsumeUnboundConversionTest, WidthAndPrecision) {
>+  EXPECT_TRUE(Run("14d"));
>+  EXPECT_EQ('d', o.conv.Char());
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_EQ(14, o.width.value());
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_LT(o.precision.value(), 0);
>+
>+  EXPECT_TRUE(Run("14.d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_EQ(14, o.width.value());
>+  EXPECT_EQ(0, o.precision.value());
>+
>+  EXPECT_TRUE(Run(".d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_LT(o.width.value(), 0);
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_EQ(0, o.precision.value());
>+
>+  EXPECT_TRUE(Run(".5d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_LT(o.width.value(), 0);
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_EQ(5, o.precision.value());
>+
>+  EXPECT_TRUE(Run(".0d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_LT(o.width.value(), 0);
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_EQ(0, o.precision.value());
>+
>+  EXPECT_TRUE(Run("14.5d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_EQ(14, o.width.value());
>+  EXPECT_EQ(5, o.precision.value());
>+
>+  EXPECT_TRUE(Run("*.*d"));
>+  EXPECT_TRUE(o.width.is_from_arg());
>+  EXPECT_EQ(1, o.width.get_from_arg());
>+  EXPECT_TRUE(o.precision.is_from_arg());
>+  EXPECT_EQ(2, o.precision.get_from_arg());
>+  EXPECT_EQ(3, o.arg_position);
>+
>+  EXPECT_TRUE(Run("*d"));
>+  EXPECT_TRUE(o.width.is_from_arg());
>+  EXPECT_EQ(1, o.width.get_from_arg());
>+  EXPECT_FALSE(o.precision.is_from_arg());
>+  EXPECT_LT(o.precision.value(), 0);
>+  EXPECT_EQ(2, o.arg_position);
>+
>+  EXPECT_TRUE(Run(".*d"));
>+  EXPECT_FALSE(o.width.is_from_arg());
>+  EXPECT_LT(o.width.value(), 0);
>+  EXPECT_TRUE(o.precision.is_from_arg());
>+  EXPECT_EQ(1, o.precision.get_from_arg());
>+  EXPECT_EQ(2, o.arg_position);
>+
>+  // mixed implicit and explicit: didn't specify arg position.
>+  EXPECT_FALSE(Run("*23$.*34$d"));
>+
>+  EXPECT_TRUE(Run("12$*23$.*34$d"));
>+  EXPECT_EQ(12, o.arg_position);
>+  EXPECT_TRUE(o.width.is_from_arg());
>+  EXPECT_EQ(23, o.width.get_from_arg());
>+  EXPECT_TRUE(o.precision.is_from_arg());
>+  EXPECT_EQ(34, o.precision.get_from_arg());
>+
>+  EXPECT_TRUE(Run("2$*5$.*9$d"));
>+  EXPECT_EQ(2, o.arg_position);
>+  EXPECT_TRUE(o.width.is_from_arg());
>+  EXPECT_EQ(5, o.width.get_from_arg());
>+  EXPECT_TRUE(o.precision.is_from_arg());
>+  EXPECT_EQ(9, o.precision.get_from_arg());
>+
>+  EXPECT_FALSE(Run(".*0$d")) << "no arg 0";
>+}
>+
>+TEST_F(ConsumeUnboundConversionTest, Flags) {
>+  static const char kAllFlags[] = "-+ #0";
>+  static const int kNumFlags = ABSL_ARRAYSIZE(kAllFlags) - 1;
>+  for (int rev = 0; rev < 2; ++rev) {
>+    for (int i = 0; i < 1 << kNumFlags; ++i) {
>+      std::string fmt;
>+      for (int k = 0; k < kNumFlags; ++k)
>+        if ((i >> k) & 1) fmt += kAllFlags[k];
>+      // flag order shouldn't matter
>+      if (rev == 1) { std::reverse(fmt.begin(), fmt.end()); }
>+      fmt += 'd';
>+      SCOPED_TRACE(fmt);
>+      EXPECT_TRUE(Run(fmt.c_str()));
>+      EXPECT_EQ(fmt.find('-') == std::string::npos, !o.flags.left);
>+      EXPECT_EQ(fmt.find('+') == std::string::npos, !o.flags.show_pos);
>+      EXPECT_EQ(fmt.find(' ') == std::string::npos, !o.flags.sign_col);
>+      EXPECT_EQ(fmt.find('#') == std::string::npos, !o.flags.alt);
>+      EXPECT_EQ(fmt.find('0') == std::string::npos, !o.flags.zero);
>+    }
>+  }
>+}
>+
>+TEST_F(ConsumeUnboundConversionTest, BasicFlag) {
>+  // Flag is on
>+  for (const char* fmt : {"d", "llx", "G", "1$X"}) {
>+    SCOPED_TRACE(fmt);
>+    EXPECT_TRUE(Run(fmt));
>+    EXPECT_TRUE(o.flags.basic);
>+  }
>+
>+  // Flag is off
>+  for (const char* fmt : {"3d", ".llx", "-G", "1$#X"}) {
>+    SCOPED_TRACE(fmt);
>+    EXPECT_TRUE(Run(fmt));
>+    EXPECT_FALSE(o.flags.basic);
>+  }
>+}
>+
>+struct SummarizeConsumer {
>+  std::string* out;
>+  explicit SummarizeConsumer(std::string* out) : out(out) {}
>+
>+  bool Append(string_view s) {
>+    *out += "[" + std::string(s) + "]";
>+    return true;
>+  }
>+
>+  bool ConvertOne(const UnboundConversion& conv, string_view s) {
>+    *out += "{";
>+    *out += std::string(s);
>+    *out += ":";
>+    *out += std::to_string(conv.arg_position) + "$";
>+    if (conv.width.is_from_arg()) {
>+      *out += std::to_string(conv.width.get_from_arg()) + "$*";
>+    }
>+    if (conv.precision.is_from_arg()) {
>+      *out += "." + std::to_string(conv.precision.get_from_arg()) + "$*";
>+    }
>+    *out += conv.conv.Char();
>+    *out += "}";
>+    return true;
>+  }
>+};
>+
>+std::string SummarizeParsedFormat(const ParsedFormatBase& pc) {
>+  std::string out;
>+  if (!pc.ProcessFormat(SummarizeConsumer(&out))) out += "!";
>+  return out;
>+}
>+
>+class ParsedFormatTest : public testing::Test {};
>+
>+TEST_F(ParsedFormatTest, ValueSemantics) {
>+  ParsedFormatBase p1({}, true, {});  // empty format
>+  EXPECT_EQ("", SummarizeParsedFormat(p1));
>+
>+  ParsedFormatBase p2 = p1;  // copy construct (empty)
>+  EXPECT_EQ(SummarizeParsedFormat(p1), SummarizeParsedFormat(p2));
>+
>+  p1 = ParsedFormatBase("hello%s", true, {Conv::s});  // move assign
>+  EXPECT_EQ("[hello]{s:1$s}", SummarizeParsedFormat(p1));
>+
>+  ParsedFormatBase p3 = p1;  // copy construct (nonempty)
>+  EXPECT_EQ(SummarizeParsedFormat(p1), SummarizeParsedFormat(p3));
>+
>+  using std::swap;
>+  swap(p1, p2);
>+  EXPECT_EQ("", SummarizeParsedFormat(p1));
>+  EXPECT_EQ("[hello]{s:1$s}", SummarizeParsedFormat(p2));
>+  swap(p1, p2);  // undo
>+
>+  p2 = p1;  // copy assign
>+  EXPECT_EQ(SummarizeParsedFormat(p1), SummarizeParsedFormat(p2));
>+}
>+
>+struct ExpectParse {
>+  const char* in;
>+  std::initializer_list<Conv> conv_set;
>+  const char* out;
>+};
>+
>+TEST_F(ParsedFormatTest, Parsing) {
>+  // Parse should be equivalent to that obtained by ConversionParseIterator.
>+  // No need to retest the parsing edge cases here.
>+  const ExpectParse kExpect[] = {
>+      {"", {}, ""},
>+      {"ab", {}, "[ab]"},
>+      {"a%d", {Conv::d}, "[a]{d:1$d}"},
>+      {"a%+d", {Conv::d}, "[a]{+d:1$d}"},
>+      {"a% d", {Conv::d}, "[a]{ d:1$d}"},
>+      {"a%b %d", {}, "[a]!"},  // stop after error
>+  };
>+  for (const auto& e : kExpect) {
>+    SCOPED_TRACE(e.in);
>+    EXPECT_EQ(e.out,
>+              SummarizeParsedFormat(ParsedFormatBase(e.in, false, e.conv_set)));
>+  }
>+}
>+
>+TEST_F(ParsedFormatTest, ParsingFlagOrder) {
>+  const ExpectParse kExpect[] = {
>+      {"a%+ 0d", {Conv::d}, "[a]{+ 0d:1$d}"},
>+      {"a%+0 d", {Conv::d}, "[a]{+0 d:1$d}"},
>+      {"a%0+ d", {Conv::d}, "[a]{0+ d:1$d}"},
>+      {"a% +0d", {Conv::d}, "[a]{ +0d:1$d}"},
>+      {"a%0 +d", {Conv::d}, "[a]{0 +d:1$d}"},
>+      {"a% 0+d", {Conv::d}, "[a]{ 0+d:1$d}"},
>+      {"a%+   0+d", {Conv::d}, "[a]{+   0+d:1$d}"},
>+  };
>+  for (const auto& e : kExpect) {
>+    SCOPED_TRACE(e.in);
>+    EXPECT_EQ(e.out,
>+              SummarizeParsedFormat(ParsedFormatBase(e.in, false, e.conv_set)));
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace str_format_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_join_internal.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_join_internal.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a734758c21ee30951f77a2c69c96ec75d71ee96a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_join_internal.h
>@@ -0,0 +1,311 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// This file declares INTERNAL parts of the Join API that are inlined/templated
>+// or otherwise need to be available at compile time. The main abstractions
>+// defined in this file are:
>+//
>+//   - A handful of default Formatters
>+//   - JoinAlgorithm() overloads
>+//   - JoinRange() overloads
>+//   - JoinTuple()
>+//
>+// DO NOT INCLUDE THIS FILE DIRECTLY. Use this file by including
>+// absl/strings/str_join.h
>+//
>+// IWYU pragma: private, include "absl/strings/str_join.h"
>+
>+#ifndef ABSL_STRINGS_INTERNAL_STR_JOIN_INTERNAL_H_
>+#define ABSL_STRINGS_INTERNAL_STR_JOIN_INTERNAL_H_
>+
>+#include <cstring>
>+#include <iterator>
>+#include <memory>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/strings/internal/ostringstream.h"
>+#include "absl/strings/internal/resize_uninitialized.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+//
>+// Formatter objects
>+//
>+// The following are implementation classes for standard Formatter objects. The
>+// factory functions that users will call to create and use these formatters are
>+// defined and documented in strings/join.h.
>+//
>+
>+// The default formatter. Converts alpha-numeric types to strings.
>+struct AlphaNumFormatterImpl {
>+  // This template is needed in order to support passing in a dereferenced
>+  // vector<bool>::iterator
>+  template <typename T>
>+  void operator()(std::string* out, const T& t) const {
>+    StrAppend(out, AlphaNum(t));
>+  }
>+
>+  void operator()(std::string* out, const AlphaNum& t) const {
>+    StrAppend(out, t);
>+  }
>+};
>+
>+// A type that's used to overload the JoinAlgorithm() function (defined below)
>+// for ranges that do not require additional formatting (e.g., a range of
>+// strings).
>+
>+struct NoFormatter : public AlphaNumFormatterImpl {};
>+
>+// Formats types to strings using the << operator.
>+class StreamFormatterImpl {
>+ public:
>+  // The method isn't const because it mutates state. Making it const will
>+  // render StreamFormatterImpl thread-hostile.
>+  template <typename T>
>+  void operator()(std::string* out, const T& t) {
>+    // The stream is created lazily to avoid paying the relatively high cost
>+    // of its construction when joining an empty range.
>+    if (strm_) {
>+      strm_->clear();  // clear the bad, fail and eof bits in case they were set
>+      strm_->str(out);
>+    } else {
>+      strm_.reset(new strings_internal::OStringStream(out));
>+    }
>+    *strm_ << t;
>+  }
>+
>+ private:
>+  std::unique_ptr<strings_internal::OStringStream> strm_;
>+};
>+
>+// Formats a std::pair<>. The 'first' member is formatted using f1_ and the
>+// 'second' member is formatted using f2_. sep_ is the separator.
>+template <typename F1, typename F2>
>+class PairFormatterImpl {
>+ public:
>+  PairFormatterImpl(F1 f1, absl::string_view sep, F2 f2)
>+      : f1_(std::move(f1)), sep_(sep), f2_(std::move(f2)) {}
>+
>+  template <typename T>
>+  void operator()(std::string* out, const T& p) {
>+    f1_(out, p.first);
>+    out->append(sep_);
>+    f2_(out, p.second);
>+  }
>+
>+  template <typename T>
>+  void operator()(std::string* out, const T& p) const {
>+    f1_(out, p.first);
>+    out->append(sep_);
>+    f2_(out, p.second);
>+  }
>+
>+ private:
>+  F1 f1_;
>+  std::string sep_;
>+  F2 f2_;
>+};
>+
>+// Wraps another formatter and dereferences the argument to operator() then
>+// passes the dereferenced argument to the wrapped formatter. This can be
>+// useful, for example, to join a std::vector<int*>.
>+template <typename Formatter>
>+class DereferenceFormatterImpl {
>+ public:
>+  DereferenceFormatterImpl() : f_() {}
>+  explicit DereferenceFormatterImpl(Formatter&& f)
>+      : f_(std::forward<Formatter>(f)) {}
>+
>+  template <typename T>
>+  void operator()(std::string* out, const T& t) {
>+    f_(out, *t);
>+  }
>+
>+  template <typename T>
>+  void operator()(std::string* out, const T& t) const {
>+    f_(out, *t);
>+  }
>+
>+ private:
>+  Formatter f_;
>+};
>+
>+// DefaultFormatter<T> is a traits class that selects a default Formatter to use
>+// for the given type T. The ::Type member names the Formatter to use. This is
>+// used by the strings::Join() functions that do NOT take a Formatter argument,
>+// in which case a default Formatter must be chosen.
>+//
>+// AlphaNumFormatterImpl is the default in the base template, followed by
>+// specializations for other types.
>+template <typename ValueType>
>+struct DefaultFormatter {
>+  typedef AlphaNumFormatterImpl Type;
>+};
>+template <>
>+struct DefaultFormatter<const char*> {
>+  typedef AlphaNumFormatterImpl Type;
>+};
>+template <>
>+struct DefaultFormatter<char*> {
>+  typedef AlphaNumFormatterImpl Type;
>+};
>+template <>
>+struct DefaultFormatter<std::string> {
>+  typedef NoFormatter Type;
>+};
>+template <>
>+struct DefaultFormatter<absl::string_view> {
>+  typedef NoFormatter Type;
>+};
>+template <typename ValueType>
>+struct DefaultFormatter<ValueType*> {
>+  typedef DereferenceFormatterImpl<typename DefaultFormatter<ValueType>::Type>
>+      Type;
>+};
>+
>+template <typename ValueType>
>+struct DefaultFormatter<std::unique_ptr<ValueType>>
>+    : public DefaultFormatter<ValueType*> {};
>+
>+//
>+// JoinAlgorithm() functions
>+//
>+
>+// The main joining algorithm. This simply joins the elements in the given
>+// iterator range, each separated by the given separator, into an output std::string,
>+// and formats each element using the provided Formatter object.
>+template <typename Iterator, typename Formatter>
>+std::string JoinAlgorithm(Iterator start, Iterator end, absl::string_view s,
>+                     Formatter&& f) {
>+  std::string result;
>+  absl::string_view sep("");
>+  for (Iterator it = start; it != end; ++it) {
>+    result.append(sep.data(), sep.size());
>+    f(&result, *it);
>+    sep = s;
>+  }
>+  return result;
>+}
>+
>+// A joining algorithm that's optimized for a forward iterator range of
>+// std::string-like objects that do not need any additional formatting. This is to
>+// optimize the common case of joining, say, a std::vector<std::string> or a
>+// std::vector<absl::string_view>.
>+//
>+// This is an overload of the previous JoinAlgorithm() function. Here the
>+// Formatter argument is of type NoFormatter. Since NoFormatter is an internal
>+// type, this overload is only invoked when strings::Join() is called with a
>+// range of std::string-like objects (e.g., std::string, absl::string_view), and an
>+// explicit Formatter argument was NOT specified.
>+//
>+// The optimization is that the needed space will be reserved in the output
>+// std::string to avoid the need to resize while appending. To do this, the iterator
>+// range will be traversed twice: once to calculate the total needed size, and
>+// then again to copy the elements and delimiters to the output std::string.
>+template <typename Iterator,
>+          typename = typename std::enable_if<std::is_convertible<
>+              typename std::iterator_traits<Iterator>::iterator_category,
>+              std::forward_iterator_tag>::value>::type>
>+std::string JoinAlgorithm(Iterator start, Iterator end, absl::string_view s,
>+                     NoFormatter) {
>+  std::string result;
>+  if (start != end) {
>+    // Sums size
>+    size_t result_size = start->size();
>+    for (Iterator it = start; ++it != end;) {
>+      result_size += s.size();
>+      result_size += it->size();
>+    }
>+
>+    if (result_size > 0) {
>+      STLStringResizeUninitialized(&result, result_size);
>+
>+      // Joins strings
>+      char* result_buf = &*result.begin();
>+      memcpy(result_buf, start->data(), start->size());
>+      result_buf += start->size();
>+      for (Iterator it = start; ++it != end;) {
>+        memcpy(result_buf, s.data(), s.size());
>+        result_buf += s.size();
>+        memcpy(result_buf, it->data(), it->size());
>+        result_buf += it->size();
>+      }
>+    }
>+  }
>+
>+  return result;
>+}
>+
>+// JoinTupleLoop implements a loop over the elements of a std::tuple, which
>+// are heterogeneous. The primary template matches the tuple interior case. It
>+// continues the iteration after appending a separator (for nonzero indices)
>+// and formatting an element of the tuple. The specialization for the I=N case
>+// matches the end-of-tuple, and terminates the iteration.
>+template <size_t I, size_t N>
>+struct JoinTupleLoop {
>+  template <typename Tup, typename Formatter>
>+  void operator()(std::string* out, const Tup& tup, absl::string_view sep,
>+                  Formatter&& fmt) {
>+    if (I > 0) out->append(sep.data(), sep.size());
>+    fmt(out, std::get<I>(tup));
>+    JoinTupleLoop<I + 1, N>()(out, tup, sep, fmt);
>+  }
>+};
>+template <size_t N>
>+struct JoinTupleLoop<N, N> {
>+  template <typename Tup, typename Formatter>
>+  void operator()(std::string*, const Tup&, absl::string_view, Formatter&&) {}
>+};
>+
>+template <typename... T, typename Formatter>
>+std::string JoinAlgorithm(const std::tuple<T...>& tup, absl::string_view sep,
>+                     Formatter&& fmt) {
>+  std::string result;
>+  JoinTupleLoop<0, sizeof...(T)>()(&result, tup, sep, fmt);
>+  return result;
>+}
>+
>+template <typename Iterator>
>+std::string JoinRange(Iterator first, Iterator last, absl::string_view separator) {
>+  // No formatter was explicitly given, so a default must be chosen.
>+  typedef typename std::iterator_traits<Iterator>::value_type ValueType;
>+  typedef typename DefaultFormatter<ValueType>::Type Formatter;
>+  return JoinAlgorithm(first, last, separator, Formatter());
>+}
>+
>+template <typename Range, typename Formatter>
>+std::string JoinRange(const Range& range, absl::string_view separator,
>+                 Formatter&& fmt) {
>+  using std::begin;
>+  using std::end;
>+  return JoinAlgorithm(begin(range), end(range), separator, fmt);
>+}
>+
>+template <typename Range>
>+std::string JoinRange(const Range& range, absl::string_view separator) {
>+  using std::begin;
>+  using std::end;
>+  return JoinRange(begin(range), end(range), separator);
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_JOIN_INTERNAL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_split_internal.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_split_internal.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..9cf0833f49028ab039c7c422504a996d99e943dc
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/str_split_internal.h
>@@ -0,0 +1,453 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// This file declares INTERNAL parts of the Split API that are inline/templated
>+// or otherwise need to be available at compile time. The main abstractions
>+// defined in here are
>+//
>+//   - ConvertibleToStringView
>+//   - SplitIterator<>
>+//   - Splitter<>
>+//
>+// DO NOT INCLUDE THIS FILE DIRECTLY. Use this file by including
>+// absl/strings/str_split.h.
>+//
>+// IWYU pragma: private, include "absl/strings/str_split.h"
>+
>+#ifndef ABSL_STRINGS_INTERNAL_STR_SPLIT_INTERNAL_H_
>+#define ABSL_STRINGS_INTERNAL_STR_SPLIT_INTERNAL_H_
>+
>+#include <array>
>+#include <initializer_list>
>+#include <iterator>
>+#include <map>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/strings/string_view.h"
>+
>+#ifdef _GLIBCXX_DEBUG
>+#include "absl/strings/internal/stl_type_traits.h"
>+#endif  // _GLIBCXX_DEBUG
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// This class is implicitly constructible from everything that absl::string_view
>+// is implicitly constructible from. If it's constructed from a temporary
>+// std::string, the data is moved into a data member so its lifetime matches that of
>+// the ConvertibleToStringView instance.
>+class ConvertibleToStringView {
>+ public:
>+  ConvertibleToStringView(const char* s)  // NOLINT(runtime/explicit)
>+      : value_(s) {}
>+  ConvertibleToStringView(char* s) : value_(s) {}  // NOLINT(runtime/explicit)
>+  ConvertibleToStringView(absl::string_view s)     // NOLINT(runtime/explicit)
>+      : value_(s) {}
>+  ConvertibleToStringView(const std::string& s)  // NOLINT(runtime/explicit)
>+      : value_(s) {}
>+
>+  // Matches rvalue strings and moves their data to a member.
>+ConvertibleToStringView(std::string&& s)  // NOLINT(runtime/explicit)
>+    : copy_(std::move(s)), value_(copy_) {}
>+
>+  ConvertibleToStringView(const ConvertibleToStringView& other)
>+      : copy_(other.copy_),
>+        value_(other.IsSelfReferential() ? copy_ : other.value_) {}
>+
>+  ConvertibleToStringView(ConvertibleToStringView&& other) {
>+    StealMembers(std::move(other));
>+  }
>+
>+  ConvertibleToStringView& operator=(ConvertibleToStringView other) {
>+    StealMembers(std::move(other));
>+    return *this;
>+  }
>+
>+  absl::string_view value() const { return value_; }
>+
>+ private:
>+  // Returns true if ctsp's value refers to its internal copy_ member.
>+  bool IsSelfReferential() const { return value_.data() == copy_.data(); }
>+
>+  void StealMembers(ConvertibleToStringView&& other) {
>+    if (other.IsSelfReferential()) {
>+      copy_ = std::move(other.copy_);
>+      value_ = copy_;
>+      other.value_ = other.copy_;
>+    } else {
>+      value_ = other.value_;
>+    }
>+  }
>+
>+  // Holds the data moved from temporary std::string arguments. Declared first so
>+  // that 'value' can refer to 'copy_'.
>+  std::string copy_;
>+  absl::string_view value_;
>+};
>+
>+// An iterator that enumerates the parts of a std::string from a Splitter. The text
>+// to be split, the Delimiter, and the Predicate are all taken from the given
>+// Splitter object. Iterators may only be compared if they refer to the same
>+// Splitter instance.
>+//
>+// This class is NOT part of the public splitting API.
>+template <typename Splitter>
>+class SplitIterator {
>+ public:
>+  using iterator_category = std::input_iterator_tag;
>+  using value_type = absl::string_view;
>+  using difference_type = ptrdiff_t;
>+  using pointer = const value_type*;
>+  using reference = const value_type&;
>+
>+  enum State { kInitState, kLastState, kEndState };
>+  SplitIterator(State state, const Splitter* splitter)
>+      : pos_(0),
>+        state_(state),
>+        splitter_(splitter),
>+        delimiter_(splitter->delimiter()),
>+        predicate_(splitter->predicate()) {
>+    // Hack to maintain backward compatibility. This one block makes it so an
>+    // empty absl::string_view whose .data() happens to be nullptr behaves
>+    // *differently* from an otherwise empty absl::string_view whose .data() is
>+    // not nullptr. This is an undesirable difference in general, but this
>+    // behavior is maintained to avoid breaking existing code that happens to
>+    // depend on this old behavior/bug. Perhaps it will be fixed one day. The
>+    // difference in behavior is as follows:
>+    //   Split(absl::string_view(""), '-');  // {""}
>+    //   Split(absl::string_view(), '-');    // {}
>+    if (splitter_->text().data() == nullptr) {
>+      state_ = kEndState;
>+      pos_ = splitter_->text().size();
>+      return;
>+    }
>+
>+    if (state_ == kEndState) {
>+      pos_ = splitter_->text().size();
>+    } else {
>+      ++(*this);
>+    }
>+  }
>+
>+  bool at_end() const { return state_ == kEndState; }
>+
>+  reference operator*() const { return curr_; }
>+  pointer operator->() const { return &curr_; }
>+
>+  SplitIterator& operator++() {
>+    do {
>+      if (state_ == kLastState) {
>+        state_ = kEndState;
>+        return *this;
>+      }
>+      const absl::string_view text = splitter_->text();
>+      const absl::string_view d = delimiter_.Find(text, pos_);
>+      if (d.data() == text.end()) state_ = kLastState;
>+      curr_ = text.substr(pos_, d.data() - (text.data() + pos_));
>+      pos_ += curr_.size() + d.size();
>+    } while (!predicate_(curr_));
>+    return *this;
>+  }
>+
>+  SplitIterator operator++(int) {
>+    SplitIterator old(*this);
>+    ++(*this);
>+    return old;
>+  }
>+
>+  friend bool operator==(const SplitIterator& a, const SplitIterator& b) {
>+    return a.state_ == b.state_ && a.pos_ == b.pos_;
>+  }
>+
>+  friend bool operator!=(const SplitIterator& a, const SplitIterator& b) {
>+    return !(a == b);
>+  }
>+
>+ private:
>+  size_t pos_;
>+  State state_;
>+  absl::string_view curr_;
>+  const Splitter* splitter_;
>+  typename Splitter::DelimiterType delimiter_;
>+  typename Splitter::PredicateType predicate_;
>+};
>+
>+// HasMappedType<T>::value is true iff there exists a type T::mapped_type.
>+template <typename T, typename = void>
>+struct HasMappedType : std::false_type {};
>+template <typename T>
>+struct HasMappedType<T, absl::void_t<typename T::mapped_type>>
>+    : std::true_type {};
>+
>+// HasValueType<T>::value is true iff there exists a type T::value_type.
>+template <typename T, typename = void>
>+struct HasValueType : std::false_type {};
>+template <typename T>
>+struct HasValueType<T, absl::void_t<typename T::value_type>> : std::true_type {
>+};
>+
>+// HasConstIterator<T>::value is true iff there exists a type T::const_iterator.
>+template <typename T, typename = void>
>+struct HasConstIterator : std::false_type {};
>+template <typename T>
>+struct HasConstIterator<T, absl::void_t<typename T::const_iterator>>
>+    : std::true_type {};
>+
>+// IsInitializerList<T>::value is true iff T is an std::initializer_list. More
>+// details below in Splitter<> where this is used.
>+std::false_type IsInitializerListDispatch(...);  // default: No
>+template <typename T>
>+std::true_type IsInitializerListDispatch(std::initializer_list<T>*);
>+template <typename T>
>+struct IsInitializerList
>+    : decltype(IsInitializerListDispatch(static_cast<T*>(nullptr))) {};
>+
>+// A SplitterIsConvertibleTo<C>::type alias exists iff the specified condition
>+// is true for type 'C'.
>+//
>+// Restricts conversion to container-like types (by testing for the presence of
>+// a const_iterator member type) and also to disable conversion to an
>+// std::initializer_list (which also has a const_iterator). Otherwise, code
>+// compiled in C++11 will get an error due to ambiguous conversion paths (in
>+// C++11 std::vector<T>::operator= is overloaded to take either a std::vector<T>
>+// or an std::initializer_list<T>).
>+
>+template <typename C, bool has_value_type, bool has_mapped_type>
>+struct SplitterIsConvertibleToImpl : std::false_type {};
>+
>+template <typename C>
>+struct SplitterIsConvertibleToImpl<C, true, false>
>+    : std::is_constructible<typename C::value_type, absl::string_view> {};
>+
>+template <typename C>
>+struct SplitterIsConvertibleToImpl<C, true, true>
>+    : absl::conjunction<
>+          std::is_constructible<typename C::key_type, absl::string_view>,
>+          std::is_constructible<typename C::mapped_type, absl::string_view>> {};
>+
>+template <typename C>
>+struct SplitterIsConvertibleTo
>+    : SplitterIsConvertibleToImpl<
>+          C,
>+#ifdef _GLIBCXX_DEBUG
>+          !IsStrictlyBaseOfAndConvertibleToSTLContainer<C>::value &&
>+#endif  // _GLIBCXX_DEBUG
>+              !IsInitializerList<
>+                  typename std::remove_reference<C>::type>::value &&
>+              HasValueType<C>::value && HasConstIterator<C>::value,
>+          HasMappedType<C>::value> {
>+};
>+
>+// This class implements the range that is returned by absl::StrSplit(). This
>+// class has templated conversion operators that allow it to be implicitly
>+// converted to a variety of types that the caller may have specified on the
>+// left-hand side of an assignment.
>+//
>+// The main interface for interacting with this class is through its implicit
>+// conversion operators. However, this class may also be used like a container
>+// in that it has .begin() and .end() member functions. It may also be used
>+// within a range-for loop.
>+//
>+// Output containers can be collections of any type that is constructible from
>+// an absl::string_view.
>+//
>+// An Predicate functor may be supplied. This predicate will be used to filter
>+// the split strings: only strings for which the predicate returns true will be
>+// kept. A Predicate object is any unary functor that takes an absl::string_view
>+// and returns bool.
>+template <typename Delimiter, typename Predicate>
>+class Splitter {
>+ public:
>+  using DelimiterType = Delimiter;
>+  using PredicateType = Predicate;
>+  using const_iterator = strings_internal::SplitIterator<Splitter>;
>+  using value_type = typename std::iterator_traits<const_iterator>::value_type;
>+
>+  Splitter(ConvertibleToStringView input_text, Delimiter d, Predicate p)
>+      : text_(std::move(input_text)),
>+        delimiter_(std::move(d)),
>+        predicate_(std::move(p)) {}
>+
>+  absl::string_view text() const { return text_.value(); }
>+  const Delimiter& delimiter() const { return delimiter_; }
>+  const Predicate& predicate() const { return predicate_; }
>+
>+  // Range functions that iterate the split substrings as absl::string_view
>+  // objects. These methods enable a Splitter to be used in a range-based for
>+  // loop.
>+  const_iterator begin() const { return {const_iterator::kInitState, this}; }
>+  const_iterator end() const { return {const_iterator::kEndState, this}; }
>+
>+  // An implicit conversion operator that is restricted to only those containers
>+  // that the splitter is convertible to.
>+  template <typename Container,
>+            typename = typename std::enable_if<
>+                SplitterIsConvertibleTo<Container>::value>::type>
>+  operator Container() const {  // NOLINT(runtime/explicit)
>+    return ConvertToContainer<Container, typename Container::value_type,
>+                              HasMappedType<Container>::value>()(*this);
>+  }
>+
>+  // Returns a pair with its .first and .second members set to the first two
>+  // strings returned by the begin() iterator. Either/both of .first and .second
>+  // will be constructed with empty strings if the iterator doesn't have a
>+  // corresponding value.
>+  template <typename First, typename Second>
>+  operator std::pair<First, Second>() const {  // NOLINT(runtime/explicit)
>+    absl::string_view first, second;
>+    auto it = begin();
>+    if (it != end()) {
>+      first = *it;
>+      if (++it != end()) {
>+        second = *it;
>+      }
>+    }
>+    return {First(first), Second(second)};
>+  }
>+
>+ private:
>+  // ConvertToContainer is a functor converting a Splitter to the requested
>+  // Container of ValueType. It is specialized below to optimize splitting to
>+  // certain combinations of Container and ValueType.
>+  //
>+  // This base template handles the generic case of storing the split results in
>+  // the requested non-map-like container and converting the split substrings to
>+  // the requested type.
>+  template <typename Container, typename ValueType, bool is_map = false>
>+  struct ConvertToContainer {
>+    Container operator()(const Splitter& splitter) const {
>+      Container c;
>+      auto it = std::inserter(c, c.end());
>+      for (const auto sp : splitter) {
>+        *it++ = ValueType(sp);
>+      }
>+      return c;
>+    }
>+  };
>+
>+  // Partial specialization for a std::vector<absl::string_view>.
>+  //
>+  // Optimized for the common case of splitting to a
>+  // std::vector<absl::string_view>. In this case we first split the results to
>+  // a small array of absl::string_view on the stack, to reduce reallocations.
>+  template <typename A>
>+  struct ConvertToContainer<std::vector<absl::string_view, A>,
>+                            absl::string_view, false> {
>+    std::vector<absl::string_view, A> operator()(
>+        const Splitter& splitter) const {
>+      struct raw_view {
>+        const char* data;
>+        size_t size;
>+        operator absl::string_view() const {  // NOLINT(runtime/explicit)
>+          return {data, size};
>+        }
>+      };
>+      std::vector<absl::string_view, A> v;
>+      std::array<raw_view, 16> ar;
>+      for (auto it = splitter.begin(); !it.at_end();) {
>+        size_t index = 0;
>+        do {
>+          ar[index].data = it->data();
>+          ar[index].size = it->size();
>+          ++it;
>+        } while (++index != ar.size() && !it.at_end());
>+        v.insert(v.end(), ar.begin(), ar.begin() + index);
>+      }
>+      return v;
>+    }
>+  };
>+
>+  // Partial specialization for a std::vector<std::string>.
>+  //
>+  // Optimized for the common case of splitting to a std::vector<std::string>. In
>+  // this case we first split the results to a std::vector<absl::string_view> so
>+  // the returned std::vector<std::string> can have space reserved to avoid std::string
>+  // moves.
>+  template <typename A>
>+  struct ConvertToContainer<std::vector<std::string, A>, std::string, false> {
>+    std::vector<std::string, A> operator()(const Splitter& splitter) const {
>+      const std::vector<absl::string_view> v = splitter;
>+      return std::vector<std::string, A>(v.begin(), v.end());
>+    }
>+  };
>+
>+  // Partial specialization for containers of pairs (e.g., maps).
>+  //
>+  // The algorithm is to insert a new pair into the map for each even-numbered
>+  // item, with the even-numbered item as the key with a default-constructed
>+  // value. Each odd-numbered item will then be assigned to the last pair's
>+  // value.
>+  template <typename Container, typename First, typename Second>
>+  struct ConvertToContainer<Container, std::pair<const First, Second>, true> {
>+    Container operator()(const Splitter& splitter) const {
>+      Container m;
>+      typename Container::iterator it;
>+      bool insert = true;
>+      for (const auto sp : splitter) {
>+        if (insert) {
>+          it = Inserter<Container>::Insert(&m, First(sp), Second());
>+        } else {
>+          it->second = Second(sp);
>+        }
>+        insert = !insert;
>+      }
>+      return m;
>+    }
>+
>+    // Inserts the key and value into the given map, returning an iterator to
>+    // the inserted item. Specialized for std::map and std::multimap to use
>+    // emplace() and adapt emplace()'s return value.
>+    template <typename Map>
>+    struct Inserter {
>+      using M = Map;
>+      template <typename... Args>
>+      static typename M::iterator Insert(M* m, Args&&... args) {
>+        return m->insert(std::make_pair(std::forward<Args>(args)...)).first;
>+      }
>+    };
>+
>+    template <typename... Ts>
>+    struct Inserter<std::map<Ts...>> {
>+      using M = std::map<Ts...>;
>+      template <typename... Args>
>+      static typename M::iterator Insert(M* m, Args&&... args) {
>+        return m->emplace(std::make_pair(std::forward<Args>(args)...)).first;
>+      }
>+    };
>+
>+    template <typename... Ts>
>+    struct Inserter<std::multimap<Ts...>> {
>+      using M = std::multimap<Ts...>;
>+      template <typename... Args>
>+      static typename M::iterator Insert(M* m, Args&&... args) {
>+        return m->emplace(std::make_pair(std::forward<Args>(args)...));
>+      }
>+    };
>+  };
>+
>+  ConvertibleToStringView text_;
>+  Delimiter delimiter_;
>+  Predicate predicate_;
>+};
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_STR_SPLIT_INTERNAL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2415c2ccc45cd7549e9866d8bb03bd9ad005b363
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.cc
>@@ -0,0 +1,51 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// UTF8 utilities, implemented to reduce dependencies.
>+
>+#include "absl/strings/internal/utf8.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+size_t EncodeUTF8Char(char *buffer, char32_t utf8_char) {
>+  if (utf8_char <= 0x7F) {
>+    *buffer = static_cast<char>(utf8_char);
>+    return 1;
>+  } else if (utf8_char <= 0x7FF) {
>+    buffer[1] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[0] = 0xC0 | utf8_char;
>+    return 2;
>+  } else if (utf8_char <= 0xFFFF) {
>+    buffer[2] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[1] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[0] = 0xE0 | utf8_char;
>+    return 3;
>+  } else {
>+    buffer[3] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[2] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[1] = 0x80 | (utf8_char & 0x3F);
>+    utf8_char >>= 6;
>+    buffer[0] = 0xF0 | utf8_char;
>+    return 4;
>+  }
>+}
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..d2c3c0b01208596b44c79847ea71c627d913c64b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8.h
>@@ -0,0 +1,47 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// UTF8 utilities, implemented to reduce dependencies.
>+//
>+
>+#ifndef ABSL_STRINGS_INTERNAL_UTF8_H_
>+#define ABSL_STRINGS_INTERNAL_UTF8_H_
>+
>+#include <cstddef>
>+#include <cstdint>
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+// For Unicode code points 0 through 0x10FFFF, EncodeUTF8Char writes
>+// out the UTF-8 encoding into buffer, and returns the number of chars
>+// it wrote.
>+//
>+// As described in https://tools.ietf.org/html/rfc3629#section-3 , the encodings
>+// are:
>+//    00 -     7F : 0xxxxxxx
>+//    80 -    7FF : 110xxxxx 10xxxxxx
>+//   800 -   FFFF : 1110xxxx 10xxxxxx 10xxxxxx
>+// 10000 - 10FFFF : 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
>+//
>+// Values greater than 0x10FFFF are not supported and may or may not write
>+// characters into buffer, however never will more than kMaxEncodedUTF8Size
>+// bytes be written, regardless of the value of utf8_char.
>+enum { kMaxEncodedUTF8Size = 4 };
>+size_t EncodeUTF8Char(char *buffer, char32_t utf8_char);
>+
>+}  // namespace strings_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_INTERNAL_UTF8_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..64cec70df7e1d8dd53f54d3f8c06f40b084d9f5b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/internal/utf8_test.cc
>@@ -0,0 +1,57 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/internal/utf8.h"
>+
>+#include <cstdint>
>+#include <utility>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/port.h"
>+
>+namespace {
>+
>+TEST(EncodeUTF8Char, BasicFunction) {
>+  std::pair<char32_t, std::string> tests[] = {{0x0030, u8"\u0030"},
>+                                         {0x00A3, u8"\u00A3"},
>+                                         {0x00010000, u8"\U00010000"},
>+                                         {0x0000FFFF, u8"\U0000FFFF"},
>+                                         {0x0010FFFD, u8"\U0010FFFD"}};
>+  for (auto &test : tests) {
>+    char buf0[7] = {'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00'};
>+    char buf1[7] = {'\xFF', '\xFF', '\xFF', '\xFF', '\xFF', '\xFF', '\xFF'};
>+    char *buf0_written =
>+        &buf0[absl::strings_internal::EncodeUTF8Char(buf0, test.first)];
>+    char *buf1_written =
>+        &buf1[absl::strings_internal::EncodeUTF8Char(buf1, test.first)];
>+    int apparent_length = 7;
>+    while (buf0[apparent_length - 1] == '\x00' &&
>+           buf1[apparent_length - 1] == '\xFF') {
>+      if (--apparent_length == 0) break;
>+    }
>+    EXPECT_EQ(apparent_length, buf0_written - buf0);
>+    EXPECT_EQ(apparent_length, buf1_written - buf1);
>+    EXPECT_EQ(apparent_length, test.second.length());
>+    EXPECT_EQ(std::string(buf0, apparent_length), test.second);
>+    EXPECT_EQ(std::string(buf1, apparent_length), test.second);
>+  }
>+  char buf[32] = "Don't Tread On Me";
>+  EXPECT_LE(absl::strings_internal::EncodeUTF8Char(buf, 0x00110000),
>+            absl::strings_internal::kMaxEncodedUTF8Size);
>+  char buf2[32] = "Negative is invalid but sane";
>+  EXPECT_LE(absl::strings_internal::EncodeUTF8Char(buf2, -1),
>+            absl::strings_internal::kMaxEncodedUTF8Size);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..25bd7f0b828bfdec72ca587d4871bffb692862e3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.cc
>@@ -0,0 +1,40 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/match.h"
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+namespace absl {
>+
>+namespace {
>+bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
>+  return (piece1.size() == piece2.size() &&
>+          0 == strings_internal::memcasecmp(piece1.data(), piece2.data(),
>+                                            piece1.size()));
>+  // memcasecmp uses ascii_tolower().
>+}
>+}  // namespace
>+
>+bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix) {
>+  return (text.size() >= prefix.size()) &&
>+         CaseEqual(text.substr(0, prefix.size()), prefix);
>+}
>+
>+bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix) {
>+  return (text.size() >= suffix.size()) &&
>+         CaseEqual(text.substr(text.size() - suffix.size()), suffix);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..108b6048b048ec265f518aa3a6ee04d1019f3436
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match.h
>@@ -0,0 +1,83 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: match.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains simple utilities for performing std::string matching checks.
>+// All of these function parameters are specified as `absl::string_view`,
>+// meaning that these functions can accept `std::string`, `absl::string_view` or
>+// nul-terminated C-style strings.
>+//
>+// Examples:
>+//   std::string s = "foo";
>+//   absl::string_view sv = "f";
>+//   assert(absl::StrContains(s, sv));
>+//
>+// Note: The order of parameters in these functions is designed to mimic the
>+// order an equivalent member function would exhibit;
>+// e.g. `s.Contains(x)` ==> `absl::StrContains(s, x).
>+#ifndef ABSL_STRINGS_MATCH_H_
>+#define ABSL_STRINGS_MATCH_H_
>+
>+#include <cstring>
>+
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// StrContains()
>+//
>+// Returns whether a given std::string `haystack` contains the substring `needle`.
>+inline bool StrContains(absl::string_view haystack, absl::string_view needle) {
>+  return haystack.find(needle, 0) != haystack.npos;
>+}
>+
>+// StartsWith()
>+//
>+// Returns whether a given std::string `text` begins with `prefix`.
>+inline bool StartsWith(absl::string_view text, absl::string_view prefix) {
>+  return prefix.empty() ||
>+         (text.size() >= prefix.size() &&
>+          memcmp(text.data(), prefix.data(), prefix.size()) == 0);
>+}
>+
>+// EndsWith()
>+//
>+// Returns whether a given std::string `text` ends with `suffix`.
>+inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
>+  return suffix.empty() ||
>+         (text.size() >= suffix.size() &&
>+          memcmp(text.data() + (text.size() - suffix.size()), suffix.data(),
>+                 suffix.size()) == 0
>+         );
>+}
>+
>+// StartsWithIgnoreCase()
>+//
>+// Returns whether a given std::string `text` starts with `starts_with`, ignoring
>+// case in the comparison.
>+bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix);
>+
>+// EndsWithIgnoreCase()
>+//
>+// Returns whether a given std::string `text` ends with `ends_with`, ignoring case
>+// in the comparison.
>+bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_MATCH_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d194f0e689bf6e001656c52e357b5d778a67b55d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/match_test.cc
>@@ -0,0 +1,99 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/match.h"
>+
>+#include "gtest/gtest.h"
>+
>+namespace {
>+
>+TEST(MatchTest, StartsWith) {
>+  const std::string s1("123" "\0" "456", 7);
>+  const absl::string_view a("foobar");
>+  const absl::string_view b(s1);
>+  const absl::string_view e;
>+  EXPECT_TRUE(absl::StartsWith(a, a));
>+  EXPECT_TRUE(absl::StartsWith(a, "foo"));
>+  EXPECT_TRUE(absl::StartsWith(a, e));
>+  EXPECT_TRUE(absl::StartsWith(b, s1));
>+  EXPECT_TRUE(absl::StartsWith(b, b));
>+  EXPECT_TRUE(absl::StartsWith(b, e));
>+  EXPECT_TRUE(absl::StartsWith(e, ""));
>+  EXPECT_FALSE(absl::StartsWith(a, b));
>+  EXPECT_FALSE(absl::StartsWith(b, a));
>+  EXPECT_FALSE(absl::StartsWith(e, a));
>+}
>+
>+TEST(MatchTest, EndsWith) {
>+  const std::string s1("123" "\0" "456", 7);
>+  const absl::string_view a("foobar");
>+  const absl::string_view b(s1);
>+  const absl::string_view e;
>+  EXPECT_TRUE(absl::EndsWith(a, a));
>+  EXPECT_TRUE(absl::EndsWith(a, "bar"));
>+  EXPECT_TRUE(absl::EndsWith(a, e));
>+  EXPECT_TRUE(absl::EndsWith(b, s1));
>+  EXPECT_TRUE(absl::EndsWith(b, b));
>+  EXPECT_TRUE(absl::EndsWith(b, e));
>+  EXPECT_TRUE(absl::EndsWith(e, ""));
>+  EXPECT_FALSE(absl::EndsWith(a, b));
>+  EXPECT_FALSE(absl::EndsWith(b, a));
>+  EXPECT_FALSE(absl::EndsWith(e, a));
>+}
>+
>+TEST(MatchTest, Contains) {
>+  absl::string_view a("abcdefg");
>+  absl::string_view b("abcd");
>+  absl::string_view c("efg");
>+  absl::string_view d("gh");
>+  EXPECT_TRUE(absl::StrContains(a, a));
>+  EXPECT_TRUE(absl::StrContains(a, b));
>+  EXPECT_TRUE(absl::StrContains(a, c));
>+  EXPECT_FALSE(absl::StrContains(a, d));
>+  EXPECT_TRUE(absl::StrContains("", ""));
>+  EXPECT_TRUE(absl::StrContains("abc", ""));
>+  EXPECT_FALSE(absl::StrContains("", "a"));
>+}
>+
>+TEST(MatchTest, ContainsNull) {
>+  const std::string s = "foo";
>+  const char* cs = "foo";
>+  const absl::string_view sv("foo");
>+  const absl::string_view sv2("foo\0bar", 4);
>+  EXPECT_EQ(s, "foo");
>+  EXPECT_EQ(sv, "foo");
>+  EXPECT_NE(sv2, "foo");
>+  EXPECT_TRUE(absl::EndsWith(s, sv));
>+  EXPECT_TRUE(absl::StartsWith(cs, sv));
>+  EXPECT_TRUE(absl::StrContains(cs, sv));
>+  EXPECT_FALSE(absl::StrContains(cs, sv2));
>+}
>+
>+TEST(MatchTest, StartsWithIgnoreCase) {
>+  EXPECT_TRUE(absl::StartsWithIgnoreCase("foo", "foo"));
>+  EXPECT_TRUE(absl::StartsWithIgnoreCase("foo", "Fo"));
>+  EXPECT_TRUE(absl::StartsWithIgnoreCase("foo", ""));
>+  EXPECT_FALSE(absl::StartsWithIgnoreCase("foo", "fooo"));
>+  EXPECT_FALSE(absl::StartsWithIgnoreCase("", "fo"));
>+}
>+
>+TEST(MatchTest, EndsWithIgnoreCase) {
>+  EXPECT_TRUE(absl::EndsWithIgnoreCase("foo", "foo"));
>+  EXPECT_TRUE(absl::EndsWithIgnoreCase("foo", "Oo"));
>+  EXPECT_TRUE(absl::EndsWithIgnoreCase("foo", ""));
>+  EXPECT_FALSE(absl::EndsWithIgnoreCase("foo", "fooo"));
>+  EXPECT_FALSE(absl::EndsWithIgnoreCase("", "fo"));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f842ed85e9f595efb8da1ec050275dd368a26e97
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.cc
>@@ -0,0 +1,912 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains std::string processing functions related to
>+// numeric values.
>+
>+#include "absl/strings/numbers.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cfloat>          // for DBL_DIG and FLT_DIG
>+#include <cmath>           // for HUGE_VAL
>+#include <cstdint>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+#include <iterator>
>+#include <limits>
>+#include <memory>
>+#include <utility>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/charconv.h"
>+#include "absl/strings/internal/bits.h"
>+#include "absl/strings/internal/memutil.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace absl {
>+
>+bool SimpleAtof(absl::string_view str, float* value) {
>+  *value = 0.0;
>+  str = StripAsciiWhitespace(str);
>+  if (!str.empty() && str[0] == '+') {
>+    str.remove_prefix(1);
>+  }
>+  auto result = absl::from_chars(str.data(), str.data() + str.size(), *value);
>+  if (result.ec == std::errc::invalid_argument) {
>+    return false;
>+  }
>+  if (result.ptr != str.data() + str.size()) {
>+    // not all non-whitespace characters consumed
>+    return false;
>+  }
>+  // from_chars() with DR 3801's current wording will return max() on
>+  // overflow.  SimpleAtof returns infinity instead.
>+  if (result.ec == std::errc::result_out_of_range) {
>+    if (*value > 1.0) {
>+      *value = std::numeric_limits<float>::infinity();
>+    } else if (*value < -1.0) {
>+      *value = -std::numeric_limits<float>::infinity();
>+    }
>+  }
>+  return true;
>+}
>+
>+bool SimpleAtod(absl::string_view str, double* value) {
>+  *value = 0.0;
>+  str = StripAsciiWhitespace(str);
>+  if (!str.empty() && str[0] == '+') {
>+    str.remove_prefix(1);
>+  }
>+  auto result = absl::from_chars(str.data(), str.data() + str.size(), *value);
>+  if (result.ec == std::errc::invalid_argument) {
>+    return false;
>+  }
>+  if (result.ptr != str.data() + str.size()) {
>+    // not all non-whitespace characters consumed
>+    return false;
>+  }
>+  // from_chars() with DR 3801's current wording will return max() on
>+  // overflow.  SimpleAtod returns infinity instead.
>+  if (result.ec == std::errc::result_out_of_range) {
>+    if (*value > 1.0) {
>+      *value = std::numeric_limits<double>::infinity();
>+    } else if (*value < -1.0) {
>+      *value = -std::numeric_limits<double>::infinity();
>+    }
>+  }
>+  return true;
>+}
>+
>+namespace {
>+
>+// TODO(rogeeff): replace with the real released thing once we figure out what
>+// it is.
>+inline bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
>+  return (piece1.size() == piece2.size() &&
>+          0 == strings_internal::memcasecmp(piece1.data(), piece2.data(),
>+                                            piece1.size()));
>+}
>+
>+// Writes a two-character representation of 'i' to 'buf'. 'i' must be in the
>+// range 0 <= i < 100, and buf must have space for two characters. Example:
>+//   char buf[2];
>+//   PutTwoDigits(42, buf);
>+//   // buf[0] == '4'
>+//   // buf[1] == '2'
>+inline void PutTwoDigits(size_t i, char* buf) {
>+  static const char two_ASCII_digits[100][2] = {
>+    {'0', '0'}, {'0', '1'}, {'0', '2'}, {'0', '3'}, {'0', '4'},
>+    {'0', '5'}, {'0', '6'}, {'0', '7'}, {'0', '8'}, {'0', '9'},
>+    {'1', '0'}, {'1', '1'}, {'1', '2'}, {'1', '3'}, {'1', '4'},
>+    {'1', '5'}, {'1', '6'}, {'1', '7'}, {'1', '8'}, {'1', '9'},
>+    {'2', '0'}, {'2', '1'}, {'2', '2'}, {'2', '3'}, {'2', '4'},
>+    {'2', '5'}, {'2', '6'}, {'2', '7'}, {'2', '8'}, {'2', '9'},
>+    {'3', '0'}, {'3', '1'}, {'3', '2'}, {'3', '3'}, {'3', '4'},
>+    {'3', '5'}, {'3', '6'}, {'3', '7'}, {'3', '8'}, {'3', '9'},
>+    {'4', '0'}, {'4', '1'}, {'4', '2'}, {'4', '3'}, {'4', '4'},
>+    {'4', '5'}, {'4', '6'}, {'4', '7'}, {'4', '8'}, {'4', '9'},
>+    {'5', '0'}, {'5', '1'}, {'5', '2'}, {'5', '3'}, {'5', '4'},
>+    {'5', '5'}, {'5', '6'}, {'5', '7'}, {'5', '8'}, {'5', '9'},
>+    {'6', '0'}, {'6', '1'}, {'6', '2'}, {'6', '3'}, {'6', '4'},
>+    {'6', '5'}, {'6', '6'}, {'6', '7'}, {'6', '8'}, {'6', '9'},
>+    {'7', '0'}, {'7', '1'}, {'7', '2'}, {'7', '3'}, {'7', '4'},
>+    {'7', '5'}, {'7', '6'}, {'7', '7'}, {'7', '8'}, {'7', '9'},
>+    {'8', '0'}, {'8', '1'}, {'8', '2'}, {'8', '3'}, {'8', '4'},
>+    {'8', '5'}, {'8', '6'}, {'8', '7'}, {'8', '8'}, {'8', '9'},
>+    {'9', '0'}, {'9', '1'}, {'9', '2'}, {'9', '3'}, {'9', '4'},
>+    {'9', '5'}, {'9', '6'}, {'9', '7'}, {'9', '8'}, {'9', '9'}
>+  };
>+  assert(i < 100);
>+  memcpy(buf, two_ASCII_digits[i], 2);
>+}
>+
>+}  // namespace
>+
>+bool SimpleAtob(absl::string_view str, bool* value) {
>+  ABSL_RAW_CHECK(value != nullptr, "Output pointer must not be nullptr.");
>+  if (CaseEqual(str, "true") || CaseEqual(str, "t") ||
>+      CaseEqual(str, "yes") || CaseEqual(str, "y") ||
>+      CaseEqual(str, "1")) {
>+    *value = true;
>+    return true;
>+  }
>+  if (CaseEqual(str, "false") || CaseEqual(str, "f") ||
>+      CaseEqual(str, "no") || CaseEqual(str, "n") ||
>+      CaseEqual(str, "0")) {
>+    *value = false;
>+    return true;
>+  }
>+  return false;
>+}
>+
>+// ----------------------------------------------------------------------
>+// FastIntToBuffer() overloads
>+//
>+// Like the Fast*ToBuffer() functions above, these are intended for speed.
>+// Unlike the Fast*ToBuffer() functions, however, these functions write
>+// their output to the beginning of the buffer.  The caller is responsible
>+// for ensuring that the buffer has enough space to hold the output.
>+//
>+// Returns a pointer to the end of the std::string (i.e. the null character
>+// terminating the std::string).
>+// ----------------------------------------------------------------------
>+
>+namespace {
>+
>+// Used to optimize printing a decimal number's final digit.
>+const char one_ASCII_final_digits[10][2] {
>+  {'0', 0}, {'1', 0}, {'2', 0}, {'3', 0}, {'4', 0},
>+  {'5', 0}, {'6', 0}, {'7', 0}, {'8', 0}, {'9', 0},
>+};
>+
>+}  // namespace
>+
>+char* numbers_internal::FastIntToBuffer(uint32_t i, char* buffer) {
>+  uint32_t digits;
>+  // The idea of this implementation is to trim the number of divides to as few
>+  // as possible, and also reducing memory stores and branches, by going in
>+  // steps of two digits at a time rather than one whenever possible.
>+  // The huge-number case is first, in the hopes that the compiler will output
>+  // that case in one branch-free block of code, and only output conditional
>+  // branches into it from below.
>+  if (i >= 1000000000) {     // >= 1,000,000,000
>+    digits = i / 100000000;  //      100,000,000
>+    i -= digits * 100000000;
>+    PutTwoDigits(digits, buffer);
>+    buffer += 2;
>+  lt100_000_000:
>+    digits = i / 1000000;  // 1,000,000
>+    i -= digits * 1000000;
>+    PutTwoDigits(digits, buffer);
>+    buffer += 2;
>+  lt1_000_000:
>+    digits = i / 10000;  // 10,000
>+    i -= digits * 10000;
>+    PutTwoDigits(digits, buffer);
>+    buffer += 2;
>+  lt10_000:
>+    digits = i / 100;
>+    i -= digits * 100;
>+    PutTwoDigits(digits, buffer);
>+    buffer += 2;
>+ lt100:
>+    digits = i;
>+    PutTwoDigits(digits, buffer);
>+    buffer += 2;
>+    *buffer = 0;
>+    return buffer;
>+  }
>+
>+  if (i < 100) {
>+    digits = i;
>+    if (i >= 10) goto lt100;
>+    memcpy(buffer, one_ASCII_final_digits[i], 2);
>+    return buffer + 1;
>+  }
>+  if (i < 10000) {  //    10,000
>+    if (i >= 1000) goto lt10_000;
>+    digits = i / 100;
>+    i -= digits * 100;
>+    *buffer++ = '0' + digits;
>+    goto lt100;
>+  }
>+  if (i < 1000000) {  //    1,000,000
>+    if (i >= 100000) goto lt1_000_000;
>+    digits = i / 10000;  //    10,000
>+    i -= digits * 10000;
>+    *buffer++ = '0' + digits;
>+    goto lt10_000;
>+  }
>+  if (i < 100000000) {  //    100,000,000
>+    if (i >= 10000000) goto lt100_000_000;
>+    digits = i / 1000000;  //   1,000,000
>+    i -= digits * 1000000;
>+    *buffer++ = '0' + digits;
>+    goto lt1_000_000;
>+  }
>+  // we already know that i < 1,000,000,000
>+  digits = i / 100000000;  //   100,000,000
>+  i -= digits * 100000000;
>+  *buffer++ = '0' + digits;
>+  goto lt100_000_000;
>+}
>+
>+char* numbers_internal::FastIntToBuffer(int32_t i, char* buffer) {
>+  uint32_t u = i;
>+  if (i < 0) {
>+    *buffer++ = '-';
>+    // We need to do the negation in modular (i.e., "unsigned")
>+    // arithmetic; MSVC++ apprently warns for plain "-u", so
>+    // we write the equivalent expression "0 - u" instead.
>+    u = 0 - u;
>+  }
>+  return numbers_internal::FastIntToBuffer(u, buffer);
>+}
>+
>+char* numbers_internal::FastIntToBuffer(uint64_t i, char* buffer) {
>+  uint32_t u32 = static_cast<uint32_t>(i);
>+  if (u32 == i) return numbers_internal::FastIntToBuffer(u32, buffer);
>+
>+  // Here we know i has at least 10 decimal digits.
>+  uint64_t top_1to11 = i / 1000000000;
>+  u32 = static_cast<uint32_t>(i - top_1to11 * 1000000000);
>+  uint32_t top_1to11_32 = static_cast<uint32_t>(top_1to11);
>+
>+  if (top_1to11_32 == top_1to11) {
>+    buffer = numbers_internal::FastIntToBuffer(top_1to11_32, buffer);
>+  } else {
>+    // top_1to11 has more than 32 bits too; print it in two steps.
>+    uint32_t top_8to9 = static_cast<uint32_t>(top_1to11 / 100);
>+    uint32_t mid_2 = static_cast<uint32_t>(top_1to11 - top_8to9 * 100);
>+    buffer = numbers_internal::FastIntToBuffer(top_8to9, buffer);
>+    PutTwoDigits(mid_2, buffer);
>+    buffer += 2;
>+  }
>+
>+  // We have only 9 digits now, again the maximum uint32_t can handle fully.
>+  uint32_t digits = u32 / 10000000;  // 10,000,000
>+  u32 -= digits * 10000000;
>+  PutTwoDigits(digits, buffer);
>+  buffer += 2;
>+  digits = u32 / 100000;  // 100,000
>+  u32 -= digits * 100000;
>+  PutTwoDigits(digits, buffer);
>+  buffer += 2;
>+  digits = u32 / 1000;  // 1,000
>+  u32 -= digits * 1000;
>+  PutTwoDigits(digits, buffer);
>+  buffer += 2;
>+  digits = u32 / 10;
>+  u32 -= digits * 10;
>+  PutTwoDigits(digits, buffer);
>+  buffer += 2;
>+  memcpy(buffer, one_ASCII_final_digits[u32], 2);
>+  return buffer + 1;
>+}
>+
>+char* numbers_internal::FastIntToBuffer(int64_t i, char* buffer) {
>+  uint64_t u = i;
>+  if (i < 0) {
>+    *buffer++ = '-';
>+    u = 0 - u;
>+  }
>+  return numbers_internal::FastIntToBuffer(u, buffer);
>+}
>+
>+// Given a 128-bit number expressed as a pair of uint64_t, high half first,
>+// return that number multiplied by the given 32-bit value.  If the result is
>+// too large to fit in a 128-bit number, divide it by 2 until it fits.
>+static std::pair<uint64_t, uint64_t> Mul32(std::pair<uint64_t, uint64_t> num,
>+                                           uint32_t mul) {
>+  uint64_t bits0_31 = num.second & 0xFFFFFFFF;
>+  uint64_t bits32_63 = num.second >> 32;
>+  uint64_t bits64_95 = num.first & 0xFFFFFFFF;
>+  uint64_t bits96_127 = num.first >> 32;
>+
>+  // The picture so far: each of these 64-bit values has only the lower 32 bits
>+  // filled in.
>+  // bits96_127:          [ 00000000 xxxxxxxx ]
>+  // bits64_95:                    [ 00000000 xxxxxxxx ]
>+  // bits32_63:                             [ 00000000 xxxxxxxx ]
>+  // bits0_31:                                       [ 00000000 xxxxxxxx ]
>+
>+  bits0_31 *= mul;
>+  bits32_63 *= mul;
>+  bits64_95 *= mul;
>+  bits96_127 *= mul;
>+
>+  // Now the top halves may also have value, though all 64 of their bits will
>+  // never be set at the same time, since they are a result of a 32x32 bit
>+  // multiply.  This makes the carry calculation slightly easier.
>+  // bits96_127:          [ mmmmmmmm | mmmmmmmm ]
>+  // bits64_95:                    [ | mmmmmmmm mmmmmmmm | ]
>+  // bits32_63:                      |        [ mmmmmmmm | mmmmmmmm ]
>+  // bits0_31:                       |                 [ | mmmmmmmm mmmmmmmm ]
>+  // eventually:        [ bits128_up | ...bits64_127.... | ..bits0_63... ]
>+
>+  uint64_t bits0_63 = bits0_31 + (bits32_63 << 32);
>+  uint64_t bits64_127 = bits64_95 + (bits96_127 << 32) + (bits32_63 >> 32) +
>+                        (bits0_63 < bits0_31);
>+  uint64_t bits128_up = (bits96_127 >> 32) + (bits64_127 < bits64_95);
>+  if (bits128_up == 0) return {bits64_127, bits0_63};
>+
>+  int shift = 64 - strings_internal::CountLeadingZeros64(bits128_up);
>+  uint64_t lo = (bits0_63 >> shift) + (bits64_127 << (64 - shift));
>+  uint64_t hi = (bits64_127 >> shift) + (bits128_up << (64 - shift));
>+  return {hi, lo};
>+}
>+
>+// Compute num * 5 ^ expfive, and return the first 128 bits of the result,
>+// where the first bit is always a one.  So PowFive(1, 0) starts 0b100000,
>+// PowFive(1, 1) starts 0b101000, PowFive(1, 2) starts 0b110010, etc.
>+static std::pair<uint64_t, uint64_t> PowFive(uint64_t num, int expfive) {
>+  std::pair<uint64_t, uint64_t> result = {num, 0};
>+  while (expfive >= 13) {
>+    // 5^13 is the highest power of five that will fit in a 32-bit integer.
>+    result = Mul32(result, 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5);
>+    expfive -= 13;
>+  }
>+  constexpr int powers_of_five[13] = {
>+      1,
>+      5,
>+      5 * 5,
>+      5 * 5 * 5,
>+      5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5,
>+      5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5};
>+  result = Mul32(result, powers_of_five[expfive & 15]);
>+  int shift = strings_internal::CountLeadingZeros64(result.first);
>+  if (shift != 0) {
>+    result.first = (result.first << shift) + (result.second >> (64 - shift));
>+    result.second = (result.second << shift);
>+  }
>+  return result;
>+}
>+
>+struct ExpDigits {
>+  int32_t exponent;
>+  char digits[6];
>+};
>+
>+// SplitToSix converts value, a positive double-precision floating-point number,
>+// into a base-10 exponent and 6 ASCII digits, where the first digit is never
>+// zero.  For example, SplitToSix(1) returns an exponent of zero and a digits
>+// array of {'1', '0', '0', '0', '0', '0'}.  If value is exactly halfway between
>+// two possible representations, e.g. value = 100000.5, then "round to even" is
>+// performed.
>+static ExpDigits SplitToSix(const double value) {
>+  ExpDigits exp_dig;
>+  int exp = 5;
>+  double d = value;
>+  // First step: calculate a close approximation of the output, where the
>+  // value d will be between 100,000 and 999,999, representing the digits
>+  // in the output ASCII array, and exp is the base-10 exponent.  It would be
>+  // faster to use a table here, and to look up the base-2 exponent of value,
>+  // however value is an IEEE-754 64-bit number, so the table would have 2,000
>+  // entries, which is not cache-friendly.
>+  if (d >= 999999.5) {
>+    if (d >= 1e+261) exp += 256, d *= 1e-256;
>+    if (d >= 1e+133) exp += 128, d *= 1e-128;
>+    if (d >= 1e+69) exp += 64, d *= 1e-64;
>+    if (d >= 1e+37) exp += 32, d *= 1e-32;
>+    if (d >= 1e+21) exp += 16, d *= 1e-16;
>+    if (d >= 1e+13) exp += 8, d *= 1e-8;
>+    if (d >= 1e+9) exp += 4, d *= 1e-4;
>+    if (d >= 1e+7) exp += 2, d *= 1e-2;
>+    if (d >= 1e+6) exp += 1, d *= 1e-1;
>+  } else {
>+    if (d < 1e-250) exp -= 256, d *= 1e256;
>+    if (d < 1e-122) exp -= 128, d *= 1e128;
>+    if (d < 1e-58) exp -= 64, d *= 1e64;
>+    if (d < 1e-26) exp -= 32, d *= 1e32;
>+    if (d < 1e-10) exp -= 16, d *= 1e16;
>+    if (d < 1e-2) exp -= 8, d *= 1e8;
>+    if (d < 1e+2) exp -= 4, d *= 1e4;
>+    if (d < 1e+4) exp -= 2, d *= 1e2;
>+    if (d < 1e+5) exp -= 1, d *= 1e1;
>+  }
>+  // At this point, d is in the range [99999.5..999999.5) and exp is in the
>+  // range [-324..308]. Since we need to round d up, we want to add a half
>+  // and truncate.
>+  // However, the technique above may have lost some precision, due to its
>+  // repeated multiplication by constants that each may be off by half a bit
>+  // of precision.  This only matters if we're close to the edge though.
>+  // Since we'd like to know if the fractional part of d is close to a half,
>+  // we multiply it by 65536 and see if the fractional part is close to 32768.
>+  // (The number doesn't have to be a power of two,but powers of two are faster)
>+  uint64_t d64k = d * 65536;
>+  int dddddd;  // A 6-digit decimal integer.
>+  if ((d64k % 65536) == 32767 || (d64k % 65536) == 32768) {
>+    // OK, it's fairly likely that precision was lost above, which is
>+    // not a surprise given only 52 mantissa bits are available.  Therefore
>+    // redo the calculation using 128-bit numbers.  (64 bits are not enough).
>+
>+    // Start out with digits rounded down; maybe add one below.
>+    dddddd = static_cast<int>(d64k / 65536);
>+
>+    // mantissa is a 64-bit integer representing M.mmm... * 2^63.  The actual
>+    // value we're representing, of course, is M.mmm... * 2^exp2.
>+    int exp2;
>+    double m = std::frexp(value, &exp2);
>+    uint64_t mantissa = m * (32768.0 * 65536.0 * 65536.0 * 65536.0);
>+    // std::frexp returns an m value in the range [0.5, 1.0), however we
>+    // can't multiply it by 2^64 and convert to an integer because some FPUs
>+    // throw an exception when converting an number higher than 2^63 into an
>+    // integer - even an unsigned 64-bit integer!  Fortunately it doesn't matter
>+    // since m only has 52 significant bits anyway.
>+    mantissa <<= 1;
>+    exp2 -= 64;  // not needed, but nice for debugging
>+
>+    // OK, we are here to compare:
>+    //     (dddddd + 0.5) * 10^(exp-5)  vs.  mantissa * 2^exp2
>+    // so we can round up dddddd if appropriate.  Those values span the full
>+    // range of 600 orders of magnitude of IEE 64-bit floating-point.
>+    // Fortunately, we already know they are very close, so we don't need to
>+    // track the base-2 exponent of both sides.  This greatly simplifies the
>+    // the math since the 2^exp2 calculation is unnecessary and the power-of-10
>+    // calculation can become a power-of-5 instead.
>+
>+    std::pair<uint64_t, uint64_t> edge, val;
>+    if (exp >= 6) {
>+      // Compare (dddddd + 0.5) * 5 ^ (exp - 5) to mantissa
>+      // Since we're tossing powers of two, 2 * dddddd + 1 is the
>+      // same as dddddd + 0.5
>+      edge = PowFive(2 * dddddd + 1, exp - 5);
>+
>+      val.first = mantissa;
>+      val.second = 0;
>+    } else {
>+      // We can't compare (dddddd + 0.5) * 5 ^ (exp - 5) to mantissa as we did
>+      // above because (exp - 5) is negative.  So we compare (dddddd + 0.5) to
>+      // mantissa * 5 ^ (5 - exp)
>+      edge = PowFive(2 * dddddd + 1, 0);
>+
>+      val = PowFive(mantissa, 5 - exp);
>+    }
>+    // printf("exp=%d %016lx %016lx vs %016lx %016lx\n", exp, val.first,
>+    //        val.second, edge.first, edge.second);
>+    if (val > edge) {
>+      dddddd++;
>+    } else if (val == edge) {
>+      dddddd += (dddddd & 1);
>+    }
>+  } else {
>+    // Here, we are not close to the edge.
>+    dddddd = static_cast<int>((d64k + 32768) / 65536);
>+  }
>+  if (dddddd == 1000000) {
>+    dddddd = 100000;
>+    exp += 1;
>+  }
>+  exp_dig.exponent = exp;
>+
>+  int two_digits = dddddd / 10000;
>+  dddddd -= two_digits * 10000;
>+  PutTwoDigits(two_digits, &exp_dig.digits[0]);
>+
>+  two_digits = dddddd / 100;
>+  dddddd -= two_digits * 100;
>+  PutTwoDigits(two_digits, &exp_dig.digits[2]);
>+
>+  PutTwoDigits(dddddd, &exp_dig.digits[4]);
>+  return exp_dig;
>+}
>+
>+// Helper function for fast formatting of floating-point.
>+// The result is the same as "%g", a.k.a. "%.6g".
>+size_t numbers_internal::SixDigitsToBuffer(double d, char* const buffer) {
>+  static_assert(std::numeric_limits<float>::is_iec559,
>+                "IEEE-754/IEC-559 support only");
>+
>+  char* out = buffer;  // we write data to out, incrementing as we go, but
>+                       // FloatToBuffer always returns the address of the buffer
>+                       // passed in.
>+
>+  if (std::isnan(d)) {
>+    strcpy(out, "nan");  // NOLINT(runtime/printf)
>+    return 3;
>+  }
>+  if (d == 0) {  // +0 and -0 are handled here
>+    if (std::signbit(d)) *out++ = '-';
>+    *out++ = '0';
>+    *out = 0;
>+    return out - buffer;
>+  }
>+  if (d < 0) {
>+    *out++ = '-';
>+    d = -d;
>+  }
>+  if (std::isinf(d)) {
>+    strcpy(out, "inf");  // NOLINT(runtime/printf)
>+    return out + 3 - buffer;
>+  }
>+
>+  auto exp_dig = SplitToSix(d);
>+  int exp = exp_dig.exponent;
>+  const char* digits = exp_dig.digits;
>+  out[0] = '0';
>+  out[1] = '.';
>+  switch (exp) {
>+    case 5:
>+      memcpy(out, &digits[0], 6), out += 6;
>+      *out = 0;
>+      return out - buffer;
>+    case 4:
>+      memcpy(out, &digits[0], 5), out += 5;
>+      if (digits[5] != '0') {
>+        *out++ = '.';
>+        *out++ = digits[5];
>+      }
>+      *out = 0;
>+      return out - buffer;
>+    case 3:
>+      memcpy(out, &digits[0], 4), out += 4;
>+      if ((digits[5] | digits[4]) != '0') {
>+        *out++ = '.';
>+        *out++ = digits[4];
>+        if (digits[5] != '0') *out++ = digits[5];
>+      }
>+      *out = 0;
>+      return out - buffer;
>+    case 2:
>+      memcpy(out, &digits[0], 3), out += 3;
>+      *out++ = '.';
>+      memcpy(out, &digits[3], 3);
>+      out += 3;
>+      while (out[-1] == '0') --out;
>+      if (out[-1] == '.') --out;
>+      *out = 0;
>+      return out - buffer;
>+    case 1:
>+      memcpy(out, &digits[0], 2), out += 2;
>+      *out++ = '.';
>+      memcpy(out, &digits[2], 4);
>+      out += 4;
>+      while (out[-1] == '0') --out;
>+      if (out[-1] == '.') --out;
>+      *out = 0;
>+      return out - buffer;
>+    case 0:
>+      memcpy(out, &digits[0], 1), out += 1;
>+      *out++ = '.';
>+      memcpy(out, &digits[1], 5);
>+      out += 5;
>+      while (out[-1] == '0') --out;
>+      if (out[-1] == '.') --out;
>+      *out = 0;
>+      return out - buffer;
>+    case -4:
>+      out[2] = '0';
>+      ++out;
>+      ABSL_FALLTHROUGH_INTENDED;
>+    case -3:
>+      out[2] = '0';
>+      ++out;
>+      ABSL_FALLTHROUGH_INTENDED;
>+    case -2:
>+      out[2] = '0';
>+      ++out;
>+      ABSL_FALLTHROUGH_INTENDED;
>+    case -1:
>+      out += 2;
>+      memcpy(out, &digits[0], 6);
>+      out += 6;
>+      while (out[-1] == '0') --out;
>+      *out = 0;
>+      return out - buffer;
>+  }
>+  assert(exp < -4 || exp >= 6);
>+  out[0] = digits[0];
>+  assert(out[1] == '.');
>+  out += 2;
>+  memcpy(out, &digits[1], 5), out += 5;
>+  while (out[-1] == '0') --out;
>+  if (out[-1] == '.') --out;
>+  *out++ = 'e';
>+  if (exp > 0) {
>+    *out++ = '+';
>+  } else {
>+    *out++ = '-';
>+    exp = -exp;
>+  }
>+  if (exp > 99) {
>+    int dig1 = exp / 100;
>+    exp -= dig1 * 100;
>+    *out++ = '0' + dig1;
>+  }
>+  PutTwoDigits(exp, out);
>+  out += 2;
>+  *out = 0;
>+  return out - buffer;
>+}
>+
>+namespace {
>+// Represents integer values of digits.
>+// Uses 36 to indicate an invalid character since we support
>+// bases up to 36.
>+static const int8_t kAsciiToInt[256] = {
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,  // 16 36s.
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 0,  1,  2,  3,  4,  5,
>+    6,  7,  8,  9,  36, 36, 36, 36, 36, 36, 36, 10, 11, 12, 13, 14, 15, 16, 17,
>+    18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
>+    36, 36, 36, 36, 36, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
>+    24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
>+    36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36};
>+
>+// Parse the sign and optional hex or oct prefix in text.
>+inline bool safe_parse_sign_and_base(absl::string_view* text /*inout*/,
>+                                     int* base_ptr /*inout*/,
>+                                     bool* negative_ptr /*output*/) {
>+  if (text->data() == nullptr) {
>+    return false;
>+  }
>+
>+  const char* start = text->data();
>+  const char* end = start + text->size();
>+  int base = *base_ptr;
>+
>+  // Consume whitespace.
>+  while (start < end && absl::ascii_isspace(start[0])) {
>+    ++start;
>+  }
>+  while (start < end && absl::ascii_isspace(end[-1])) {
>+    --end;
>+  }
>+  if (start >= end) {
>+    return false;
>+  }
>+
>+  // Consume sign.
>+  *negative_ptr = (start[0] == '-');
>+  if (*negative_ptr || start[0] == '+') {
>+    ++start;
>+    if (start >= end) {
>+      return false;
>+    }
>+  }
>+
>+  // Consume base-dependent prefix.
>+  //  base 0: "0x" -> base 16, "0" -> base 8, default -> base 10
>+  //  base 16: "0x" -> base 16
>+  // Also validate the base.
>+  if (base == 0) {
>+    if (end - start >= 2 && start[0] == '0' &&
>+        (start[1] == 'x' || start[1] == 'X')) {
>+      base = 16;
>+      start += 2;
>+      if (start >= end) {
>+        // "0x" with no digits after is invalid.
>+        return false;
>+      }
>+    } else if (end - start >= 1 && start[0] == '0') {
>+      base = 8;
>+      start += 1;
>+    } else {
>+      base = 10;
>+    }
>+  } else if (base == 16) {
>+    if (end - start >= 2 && start[0] == '0' &&
>+        (start[1] == 'x' || start[1] == 'X')) {
>+      start += 2;
>+      if (start >= end) {
>+        // "0x" with no digits after is invalid.
>+        return false;
>+      }
>+    }
>+  } else if (base >= 2 && base <= 36) {
>+    // okay
>+  } else {
>+    return false;
>+  }
>+  *text = absl::string_view(start, end - start);
>+  *base_ptr = base;
>+  return true;
>+}
>+
>+// Consume digits.
>+//
>+// The classic loop:
>+//
>+//   for each digit
>+//     value = value * base + digit
>+//   value *= sign
>+//
>+// The classic loop needs overflow checking.  It also fails on the most
>+// negative integer, -2147483648 in 32-bit two's complement representation.
>+//
>+// My improved loop:
>+//
>+//  if (!negative)
>+//    for each digit
>+//      value = value * base
>+//      value = value + digit
>+//  else
>+//    for each digit
>+//      value = value * base
>+//      value = value - digit
>+//
>+// Overflow checking becomes simple.
>+
>+// Lookup tables per IntType:
>+// vmax/base and vmin/base are precomputed because division costs at least 8ns.
>+// TODO(junyer): Doing this per base instead (i.e. an array of structs, not a
>+// struct of arrays) would probably be better in terms of d-cache for the most
>+// commonly used bases.
>+template <typename IntType>
>+struct LookupTables {
>+  static const IntType kVmaxOverBase[];
>+  static const IntType kVminOverBase[];
>+};
>+
>+// An array initializer macro for X/base where base in [0, 36].
>+// However, note that lookups for base in [0, 1] should never happen because
>+// base has been validated to be in [2, 36] by safe_parse_sign_and_base().
>+#define X_OVER_BASE_INITIALIZER(X)                                        \
>+  {                                                                       \
>+    0, 0, X / 2, X / 3, X / 4, X / 5, X / 6, X / 7, X / 8, X / 9, X / 10, \
>+        X / 11, X / 12, X / 13, X / 14, X / 15, X / 16, X / 17, X / 18,   \
>+        X / 19, X / 20, X / 21, X / 22, X / 23, X / 24, X / 25, X / 26,   \
>+        X / 27, X / 28, X / 29, X / 30, X / 31, X / 32, X / 33, X / 34,   \
>+        X / 35, X / 36,                                                   \
>+  }
>+
>+template <typename IntType>
>+const IntType LookupTables<IntType>::kVmaxOverBase[] =
>+    X_OVER_BASE_INITIALIZER(std::numeric_limits<IntType>::max());
>+
>+template <typename IntType>
>+const IntType LookupTables<IntType>::kVminOverBase[] =
>+    X_OVER_BASE_INITIALIZER(std::numeric_limits<IntType>::min());
>+
>+#undef X_OVER_BASE_INITIALIZER
>+
>+template <typename IntType>
>+inline bool safe_parse_positive_int(absl::string_view text, int base,
>+                                    IntType* value_p) {
>+  IntType value = 0;
>+  const IntType vmax = std::numeric_limits<IntType>::max();
>+  assert(vmax > 0);
>+  assert(base >= 0);
>+  assert(vmax >= static_cast<IntType>(base));
>+  const IntType vmax_over_base = LookupTables<IntType>::kVmaxOverBase[base];
>+  const char* start = text.data();
>+  const char* end = start + text.size();
>+  // loop over digits
>+  for (; start < end; ++start) {
>+    unsigned char c = static_cast<unsigned char>(start[0]);
>+    int digit = kAsciiToInt[c];
>+    if (digit >= base) {
>+      *value_p = value;
>+      return false;
>+    }
>+    if (value > vmax_over_base) {
>+      *value_p = vmax;
>+      return false;
>+    }
>+    value *= base;
>+    if (value > vmax - digit) {
>+      *value_p = vmax;
>+      return false;
>+    }
>+    value += digit;
>+  }
>+  *value_p = value;
>+  return true;
>+}
>+
>+template <typename IntType>
>+inline bool safe_parse_negative_int(absl::string_view text, int base,
>+                                    IntType* value_p) {
>+  IntType value = 0;
>+  const IntType vmin = std::numeric_limits<IntType>::min();
>+  assert(vmin < 0);
>+  assert(vmin <= 0 - base);
>+  IntType vmin_over_base = LookupTables<IntType>::kVminOverBase[base];
>+  // 2003 c++ standard [expr.mul]
>+  // "... the sign of the remainder is implementation-defined."
>+  // Although (vmin/base)*base + vmin%base is always vmin.
>+  // 2011 c++ standard tightens the spec but we cannot rely on it.
>+  // TODO(junyer): Handle this in the lookup table generation.
>+  if (vmin % base > 0) {
>+    vmin_over_base += 1;
>+  }
>+  const char* start = text.data();
>+  const char* end = start + text.size();
>+  // loop over digits
>+  for (; start < end; ++start) {
>+    unsigned char c = static_cast<unsigned char>(start[0]);
>+    int digit = kAsciiToInt[c];
>+    if (digit >= base) {
>+      *value_p = value;
>+      return false;
>+    }
>+    if (value < vmin_over_base) {
>+      *value_p = vmin;
>+      return false;
>+    }
>+    value *= base;
>+    if (value < vmin + digit) {
>+      *value_p = vmin;
>+      return false;
>+    }
>+    value -= digit;
>+  }
>+  *value_p = value;
>+  return true;
>+}
>+
>+// Input format based on POSIX.1-2008 strtol
>+// http://pubs.opengroup.org/onlinepubs/9699919799/functions/strtol.html
>+template <typename IntType>
>+inline bool safe_int_internal(absl::string_view text, IntType* value_p,
>+                              int base) {
>+  *value_p = 0;
>+  bool negative;
>+  if (!safe_parse_sign_and_base(&text, &base, &negative)) {
>+    return false;
>+  }
>+  if (!negative) {
>+    return safe_parse_positive_int(text, base, value_p);
>+  } else {
>+    return safe_parse_negative_int(text, base, value_p);
>+  }
>+}
>+
>+template <typename IntType>
>+inline bool safe_uint_internal(absl::string_view text, IntType* value_p,
>+                               int base) {
>+  *value_p = 0;
>+  bool negative;
>+  if (!safe_parse_sign_and_base(&text, &base, &negative) || negative) {
>+    return false;
>+  }
>+  return safe_parse_positive_int(text, base, value_p);
>+}
>+}  // anonymous namespace
>+
>+namespace numbers_internal {
>+bool safe_strto32_base(absl::string_view text, int32_t* value, int base) {
>+  return safe_int_internal<int32_t>(text, value, base);
>+}
>+
>+bool safe_strto64_base(absl::string_view text, int64_t* value, int base) {
>+  return safe_int_internal<int64_t>(text, value, base);
>+}
>+
>+bool safe_strtou32_base(absl::string_view text, uint32_t* value, int base) {
>+  return safe_uint_internal<uint32_t>(text, value, base);
>+}
>+
>+bool safe_strtou64_base(absl::string_view text, uint64_t* value, int base) {
>+  return safe_uint_internal<uint64_t>(text, value, base);
>+}
>+}  // namespace numbers_internal
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf3c597266cf71474d405dd0cfdea5cdeb58badc
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers.h
>@@ -0,0 +1,184 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: numbers.h
>+// -----------------------------------------------------------------------------
>+//
>+// This package contains functions for converting strings to numbers. For
>+// converting numbers to strings, use `StrCat()` or `StrAppend()` in str_cat.h,
>+// which automatically detect and convert most number values appropriately.
>+
>+#ifndef ABSL_STRINGS_NUMBERS_H_
>+#define ABSL_STRINGS_NUMBERS_H_
>+
>+#include <cstddef>
>+#include <cstdlib>
>+#include <cstring>
>+#include <ctime>
>+#include <limits>
>+#include <string>
>+#include <type_traits>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/numeric/int128.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// SimpleAtoi()
>+//
>+// Converts the given std::string into an integer value, returning `true` if
>+// successful. The std::string must reflect a base-10 integer (optionally followed or
>+// preceded by ASCII whitespace) whose value falls within the range of the
>+// integer type,
>+template <typename int_type>
>+ABSL_MUST_USE_RESULT bool SimpleAtoi(absl::string_view s, int_type* out);
>+
>+// SimpleAtof()
>+//
>+// Converts the given std::string (optionally followed or preceded by ASCII
>+// whitespace) into a float, which may be rounded on overflow or underflow.
>+// See http://en.cppreference.com/w/c/std::string/byte/strtof for details about the
>+// allowed formats for `str`.
>+ABSL_MUST_USE_RESULT bool SimpleAtof(absl::string_view str, float* value);
>+
>+// SimpleAtod()
>+//
>+// Converts the given std::string (optionally followed or preceded by ASCII
>+// whitespace) into a double, which may be rounded on overflow or underflow.
>+// See http://en.cppreference.com/w/c/std::string/byte/strtof for details about the
>+// allowed formats for `str`.
>+ABSL_MUST_USE_RESULT bool SimpleAtod(absl::string_view str, double* value);
>+
>+// SimpleAtob()
>+//
>+// Converts the given std::string into a boolean, returning `true` if successful.
>+// The following case-insensitive strings are interpreted as boolean `true`:
>+// "true", "t", "yes", "y", "1". The following case-insensitive strings
>+// are interpreted as boolean `false`: "false", "f", "no", "n", "0".
>+ABSL_MUST_USE_RESULT bool SimpleAtob(absl::string_view str, bool* value);
>+
>+}  // namespace absl
>+
>+// End of public API.  Implementation details follow.
>+
>+namespace absl {
>+namespace numbers_internal {
>+
>+// safe_strto?() functions for implementing SimpleAtoi()
>+bool safe_strto32_base(absl::string_view text, int32_t* value, int base);
>+bool safe_strto64_base(absl::string_view text, int64_t* value, int base);
>+bool safe_strtou32_base(absl::string_view text, uint32_t* value, int base);
>+bool safe_strtou64_base(absl::string_view text, uint64_t* value, int base);
>+
>+static const int kFastToBufferSize = 32;
>+static const int kSixDigitsToBufferSize = 16;
>+
>+// Helper function for fast formatting of floating-point values.
>+// The result is the same as printf's "%g", a.k.a. "%.6g"; that is, six
>+// significant digits are returned, trailing zeros are removed, and numbers
>+// outside the range 0.0001-999999 are output using scientific notation
>+// (1.23456e+06). This routine is heavily optimized.
>+// Required buffer size is `kSixDigitsToBufferSize`.
>+size_t SixDigitsToBuffer(double d, char* buffer);
>+
>+// These functions are intended for speed. All functions take an output buffer
>+// as an argument and return a pointer to the last byte they wrote, which is the
>+// terminating '\0'. At most `kFastToBufferSize` bytes are written.
>+char* FastIntToBuffer(int32_t, char*);
>+char* FastIntToBuffer(uint32_t, char*);
>+char* FastIntToBuffer(int64_t, char*);
>+char* FastIntToBuffer(uint64_t, char*);
>+
>+// For enums and integer types that are not an exact match for the types above,
>+// use templates to call the appropriate one of the four overloads above.
>+template <typename int_type>
>+char* FastIntToBuffer(int_type i, char* buffer) {
>+  static_assert(sizeof(i) <= 64 / 8,
>+                "FastIntToBuffer works only with 64-bit-or-less integers.");
>+  // TODO(jorg): This signed-ness check is used because it works correctly
>+  // with enums, and it also serves to check that int_type is not a pointer.
>+  // If one day something like std::is_signed<enum E> works, switch to it.
>+  if (static_cast<int_type>(1) - 2 < 0) {  // Signed
>+    if (sizeof(i) > 32 / 8) {           // 33-bit to 64-bit
>+      return FastIntToBuffer(static_cast<int64_t>(i), buffer);
>+    } else {  // 32-bit or less
>+      return FastIntToBuffer(static_cast<int32_t>(i), buffer);
>+    }
>+  } else {                     // Unsigned
>+    if (sizeof(i) > 32 / 8) {  // 33-bit to 64-bit
>+      return FastIntToBuffer(static_cast<uint64_t>(i), buffer);
>+    } else {  // 32-bit or less
>+      return FastIntToBuffer(static_cast<uint32_t>(i), buffer);
>+    }
>+  }
>+}
>+
>+// Implementation of SimpleAtoi, generalized to support arbitrary base (used
>+// with base different from 10 elsewhere in Abseil implementation).
>+template <typename int_type>
>+ABSL_MUST_USE_RESULT bool safe_strtoi_base(absl::string_view s, int_type* out,
>+                                           int base) {
>+  static_assert(sizeof(*out) == 4 || sizeof(*out) == 8,
>+                "SimpleAtoi works only with 32-bit or 64-bit integers.");
>+  static_assert(!std::is_floating_point<int_type>::value,
>+                "Use SimpleAtof or SimpleAtod instead.");
>+  bool parsed;
>+  // TODO(jorg): This signed-ness check is used because it works correctly
>+  // with enums, and it also serves to check that int_type is not a pointer.
>+  // If one day something like std::is_signed<enum E> works, switch to it.
>+  if (static_cast<int_type>(1) - 2 < 0) {  // Signed
>+    if (sizeof(*out) == 64 / 8) {       // 64-bit
>+      int64_t val;
>+      parsed = numbers_internal::safe_strto64_base(s, &val, base);
>+      *out = static_cast<int_type>(val);
>+    } else {  // 32-bit
>+      int32_t val;
>+      parsed = numbers_internal::safe_strto32_base(s, &val, base);
>+      *out = static_cast<int_type>(val);
>+    }
>+  } else {                         // Unsigned
>+    if (sizeof(*out) == 64 / 8) {  // 64-bit
>+      uint64_t val;
>+      parsed = numbers_internal::safe_strtou64_base(s, &val, base);
>+      *out = static_cast<int_type>(val);
>+    } else {  // 32-bit
>+      uint32_t val;
>+      parsed = numbers_internal::safe_strtou32_base(s, &val, base);
>+      *out = static_cast<int_type>(val);
>+    }
>+  }
>+  return parsed;
>+}
>+
>+}  // namespace numbers_internal
>+
>+// SimpleAtoi()
>+//
>+// Converts a std::string to an integer, using `safe_strto?()` functions for actual
>+// parsing, returning `true` if successful. The `safe_strto?()` functions apply
>+// strict checking; the std::string must be a base-10 integer, optionally followed or
>+// preceded by ASCII whitespace, with a value in the range of the corresponding
>+// integer type.
>+template <typename int_type>
>+ABSL_MUST_USE_RESULT bool SimpleAtoi(absl::string_view s, int_type* out) {
>+  return numbers_internal::safe_strtoi_base(s, out, 10);
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_NUMBERS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..8ef650b9a3eccdd79664dc79d2d6f261a6686a32
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_benchmark.cc
>@@ -0,0 +1,263 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstdint>
>+#include <random>
>+#include <string>
>+#include <type_traits>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/numbers.h"
>+
>+namespace {
>+
>+template <typename T>
>+void BM_FastIntToBuffer(benchmark::State& state) {
>+  const int inc = state.range(0);
>+  char buf[absl::numbers_internal::kFastToBufferSize];
>+  // Use the unsigned type to increment to take advantage of well-defined
>+  // modular arithmetic.
>+  typename std::make_unsigned<T>::type x = 0;
>+  for (auto _ : state) {
>+    absl::numbers_internal::FastIntToBuffer(static_cast<T>(x), buf);
>+    x += inc;
>+  }
>+}
>+BENCHMARK_TEMPLATE(BM_FastIntToBuffer, int32_t)->Range(0, 1 << 15);
>+BENCHMARK_TEMPLATE(BM_FastIntToBuffer, int64_t)->Range(0, 1 << 30);
>+
>+// Creates an integer that would be printed as `num_digits` repeated 7s in the
>+// given `base`. `base` must be greater than or equal to 8.
>+int64_t RepeatedSevens(int num_digits, int base) {
>+  ABSL_RAW_CHECK(base >= 8, "");
>+  int64_t num = 7;
>+  while (--num_digits) num = base * num + 7;
>+  return num;
>+}
>+
>+void BM_safe_strto32_string(benchmark::State& state) {
>+  const int digits = state.range(0);
>+  const int base = state.range(1);
>+  std::string str(digits, '7');  // valid in octal, decimal and hex
>+  int32_t value = 0;
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::numbers_internal::safe_strto32_base(str, &value, base));
>+  }
>+  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
>+}
>+BENCHMARK(BM_safe_strto32_string)
>+    ->ArgPair(1, 8)
>+    ->ArgPair(1, 10)
>+    ->ArgPair(1, 16)
>+    ->ArgPair(2, 8)
>+    ->ArgPair(2, 10)
>+    ->ArgPair(2, 16)
>+    ->ArgPair(4, 8)
>+    ->ArgPair(4, 10)
>+    ->ArgPair(4, 16)
>+    ->ArgPair(8, 8)
>+    ->ArgPair(8, 10)
>+    ->ArgPair(8, 16)
>+    ->ArgPair(10, 8)
>+    ->ArgPair(9, 10);
>+
>+void BM_safe_strto64_string(benchmark::State& state) {
>+  const int digits = state.range(0);
>+  const int base = state.range(1);
>+  std::string str(digits, '7');  // valid in octal, decimal and hex
>+  int64_t value = 0;
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::numbers_internal::safe_strto64_base(str, &value, base));
>+  }
>+  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
>+}
>+BENCHMARK(BM_safe_strto64_string)
>+    ->ArgPair(1, 8)
>+    ->ArgPair(1, 10)
>+    ->ArgPair(1, 16)
>+    ->ArgPair(2, 8)
>+    ->ArgPair(2, 10)
>+    ->ArgPair(2, 16)
>+    ->ArgPair(4, 8)
>+    ->ArgPair(4, 10)
>+    ->ArgPair(4, 16)
>+    ->ArgPair(8, 8)
>+    ->ArgPair(8, 10)
>+    ->ArgPair(8, 16)
>+    ->ArgPair(16, 8)
>+    ->ArgPair(16, 10)
>+    ->ArgPair(16, 16);
>+
>+void BM_safe_strtou32_string(benchmark::State& state) {
>+  const int digits = state.range(0);
>+  const int base = state.range(1);
>+  std::string str(digits, '7');  // valid in octal, decimal and hex
>+  uint32_t value = 0;
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::numbers_internal::safe_strtou32_base(str, &value, base));
>+  }
>+  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
>+}
>+BENCHMARK(BM_safe_strtou32_string)
>+    ->ArgPair(1, 8)
>+    ->ArgPair(1, 10)
>+    ->ArgPair(1, 16)
>+    ->ArgPair(2, 8)
>+    ->ArgPair(2, 10)
>+    ->ArgPair(2, 16)
>+    ->ArgPair(4, 8)
>+    ->ArgPair(4, 10)
>+    ->ArgPair(4, 16)
>+    ->ArgPair(8, 8)
>+    ->ArgPair(8, 10)
>+    ->ArgPair(8, 16)
>+    ->ArgPair(10, 8)
>+    ->ArgPair(9, 10);
>+
>+void BM_safe_strtou64_string(benchmark::State& state) {
>+  const int digits = state.range(0);
>+  const int base = state.range(1);
>+  std::string str(digits, '7');  // valid in octal, decimal and hex
>+  uint64_t value = 0;
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(
>+        absl::numbers_internal::safe_strtou64_base(str, &value, base));
>+  }
>+  ABSL_RAW_CHECK(value == RepeatedSevens(digits, base), "");
>+}
>+BENCHMARK(BM_safe_strtou64_string)
>+    ->ArgPair(1, 8)
>+    ->ArgPair(1, 10)
>+    ->ArgPair(1, 16)
>+    ->ArgPair(2, 8)
>+    ->ArgPair(2, 10)
>+    ->ArgPair(2, 16)
>+    ->ArgPair(4, 8)
>+    ->ArgPair(4, 10)
>+    ->ArgPair(4, 16)
>+    ->ArgPair(8, 8)
>+    ->ArgPair(8, 10)
>+    ->ArgPair(8, 16)
>+    ->ArgPair(16, 8)
>+    ->ArgPair(16, 10)
>+    ->ArgPair(16, 16);
>+
>+// Returns a vector of `num_strings` strings. Each std::string represents a
>+// floating point number with `num_digits` digits before the decimal point and
>+// another `num_digits` digits after.
>+std::vector<std::string> MakeFloatStrings(int num_strings, int num_digits) {
>+  // For convenience, use a random number generator to generate the test data.
>+  // We don't actually need random properties, so use a fixed seed.
>+  std::minstd_rand0 rng(1);
>+  std::uniform_int_distribution<int> random_digit('0', '9');
>+
>+  std::vector<std::string> float_strings(num_strings);
>+  for (std::string& s : float_strings) {
>+    s.reserve(2 * num_digits + 1);
>+    for (int i = 0; i < num_digits; ++i) {
>+      s.push_back(static_cast<char>(random_digit(rng)));
>+    }
>+    s.push_back('.');
>+    for (int i = 0; i < num_digits; ++i) {
>+      s.push_back(static_cast<char>(random_digit(rng)));
>+    }
>+  }
>+  return float_strings;
>+}
>+
>+template <typename StringType>
>+StringType GetStringAs(const std::string& s) {
>+  return static_cast<StringType>(s);
>+}
>+template <>
>+const char* GetStringAs<const char*>(const std::string& s) {
>+  return s.c_str();
>+}
>+
>+template <typename StringType>
>+std::vector<StringType> GetStringsAs(const std::vector<std::string>& strings) {
>+  std::vector<StringType> result;
>+  result.reserve(strings.size());
>+  for (const std::string& s : strings) {
>+    result.push_back(GetStringAs<StringType>(s));
>+  }
>+  return result;
>+}
>+
>+template <typename T>
>+void BM_SimpleAtof(benchmark::State& state) {
>+  const int num_strings = state.range(0);
>+  const int num_digits = state.range(1);
>+  std::vector<std::string> backing_strings =
>+      MakeFloatStrings(num_strings, num_digits);
>+  std::vector<T> inputs = GetStringsAs<T>(backing_strings);
>+  float value;
>+  for (auto _ : state) {
>+    for (const T& input : inputs) {
>+      benchmark::DoNotOptimize(absl::SimpleAtof(input, &value));
>+    }
>+  }
>+}
>+BENCHMARK_TEMPLATE(BM_SimpleAtof, absl::string_view)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+BENCHMARK_TEMPLATE(BM_SimpleAtof, const char*)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+BENCHMARK_TEMPLATE(BM_SimpleAtof, std::string)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+
>+template <typename T>
>+void BM_SimpleAtod(benchmark::State& state) {
>+  const int num_strings = state.range(0);
>+  const int num_digits = state.range(1);
>+  std::vector<std::string> backing_strings =
>+      MakeFloatStrings(num_strings, num_digits);
>+  std::vector<T> inputs = GetStringsAs<T>(backing_strings);
>+  double value;
>+  for (auto _ : state) {
>+    for (const T& input : inputs) {
>+      benchmark::DoNotOptimize(absl::SimpleAtod(input, &value));
>+    }
>+  }
>+}
>+BENCHMARK_TEMPLATE(BM_SimpleAtod, absl::string_view)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+BENCHMARK_TEMPLATE(BM_SimpleAtod, const char*)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+BENCHMARK_TEMPLATE(BM_SimpleAtod, std::string)
>+    ->ArgPair(10, 1)
>+    ->ArgPair(10, 2)
>+    ->ArgPair(10, 4)
>+    ->ArgPair(10, 8);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..27cc0479e3412c838b4785dfafb8895efe096f63
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/numbers_test.cc
>@@ -0,0 +1,1185 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file tests std::string processing functions related to numeric values.
>+
>+#include "absl/strings/numbers.h"
>+
>+#include <sys/types.h>
>+#include <cfenv>  // NOLINT(build/c++11)
>+#include <cinttypes>
>+#include <climits>
>+#include <cmath>
>+#include <cstddef>
>+#include <cstdint>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+#include <limits>
>+#include <numeric>
>+#include <random>
>+#include <set>
>+#include <string>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/str_cat.h"
>+
>+#include "absl/strings/internal/numbers_test_common.h"
>+
>+namespace {
>+
>+using absl::numbers_internal::kSixDigitsToBufferSize;
>+using absl::numbers_internal::safe_strto32_base;
>+using absl::numbers_internal::safe_strto64_base;
>+using absl::numbers_internal::safe_strtou32_base;
>+using absl::numbers_internal::safe_strtou64_base;
>+using absl::numbers_internal::SixDigitsToBuffer;
>+using absl::strings_internal::Itoa;
>+using absl::strings_internal::strtouint32_test_cases;
>+using absl::strings_internal::strtouint64_test_cases;
>+using absl::SimpleAtoi;
>+using testing::Eq;
>+using testing::MatchesRegex;
>+
>+// Number of floats to test with.
>+// 5,000,000 is a reasonable default for a test that only takes a few seconds.
>+// 1,000,000,000+ triggers checking for all possible mantissa values for
>+// double-precision tests. 2,000,000,000+ triggers checking for every possible
>+// single-precision float.
>+const int kFloatNumCases = 5000000;
>+
>+// This is a slow, brute-force routine to compute the exact base-10
>+// representation of a double-precision floating-point number.  It
>+// is useful for debugging only.
>+std::string PerfectDtoa(double d) {
>+  if (d == 0) return "0";
>+  if (d < 0) return "-" + PerfectDtoa(-d);
>+
>+  // Basic theory: decompose d into mantissa and exp, where
>+  // d = mantissa * 2^exp, and exp is as close to zero as possible.
>+  int64_t mantissa, exp = 0;
>+  while (d >= 1ULL << 63) ++exp, d *= 0.5;
>+  while ((mantissa = d) != d) --exp, d *= 2.0;
>+
>+  // Then convert mantissa to ASCII, and either double it (if
>+  // exp > 0) or halve it (if exp < 0) repeatedly.  "halve it"
>+  // in this case means multiplying it by five and dividing by 10.
>+  constexpr int maxlen = 1100;  // worst case is actually 1030 or so.
>+  char buf[maxlen + 5];
>+  for (int64_t num = mantissa, pos = maxlen; --pos >= 0;) {
>+    buf[pos] = '0' + (num % 10);
>+    num /= 10;
>+  }
>+  char* begin = &buf[0];
>+  char* end = buf + maxlen;
>+  for (int i = 0; i != exp; i += (exp > 0) ? 1 : -1) {
>+    int carry = 0;
>+    for (char* p = end; --p != begin;) {
>+      int dig = *p - '0';
>+      dig = dig * (exp > 0 ? 2 : 5) + carry;
>+      carry = dig / 10;
>+      dig %= 10;
>+      *p = '0' + dig;
>+    }
>+  }
>+  if (exp < 0) {
>+    // "dividing by 10" above means we have to add the decimal point.
>+    memmove(end + 1 + exp, end + exp, 1 - exp);
>+    end[exp] = '.';
>+    ++end;
>+  }
>+  while (*begin == '0' && begin[1] != '.') ++begin;
>+  return {begin, end};
>+}
>+
>+TEST(ToString, PerfectDtoa) {
>+  EXPECT_THAT(PerfectDtoa(1), Eq("1"));
>+  EXPECT_THAT(PerfectDtoa(0.1),
>+              Eq("0.1000000000000000055511151231257827021181583404541015625"));
>+  EXPECT_THAT(PerfectDtoa(1e24), Eq("999999999999999983222784"));
>+  EXPECT_THAT(PerfectDtoa(5e-324), MatchesRegex("0.0000.*625"));
>+  for (int i = 0; i < 100; ++i) {
>+    for (double multiplier :
>+         {1e-300, 1e-200, 1e-100, 0.1, 1.0, 10.0, 1e100, 1e300}) {
>+      double d = multiplier * i;
>+      std::string s = PerfectDtoa(d);
>+      EXPECT_DOUBLE_EQ(d, strtod(s.c_str(), nullptr));
>+    }
>+  }
>+}
>+
>+template <typename integer>
>+struct MyInteger {
>+  integer i;
>+  explicit constexpr MyInteger(integer i) : i(i) {}
>+  constexpr operator integer() const { return i; }
>+
>+  constexpr MyInteger operator+(MyInteger other) const { return i + other.i; }
>+  constexpr MyInteger operator-(MyInteger other) const { return i - other.i; }
>+  constexpr MyInteger operator*(MyInteger other) const { return i * other.i; }
>+  constexpr MyInteger operator/(MyInteger other) const { return i / other.i; }
>+
>+  constexpr bool operator<(MyInteger other) const { return i < other.i; }
>+  constexpr bool operator<=(MyInteger other) const { return i <= other.i; }
>+  constexpr bool operator==(MyInteger other) const { return i == other.i; }
>+  constexpr bool operator>=(MyInteger other) const { return i >= other.i; }
>+  constexpr bool operator>(MyInteger other) const { return i > other.i; }
>+  constexpr bool operator!=(MyInteger other) const { return i != other.i; }
>+
>+  integer as_integer() const { return i; }
>+};
>+
>+typedef MyInteger<int64_t> MyInt64;
>+typedef MyInteger<uint64_t> MyUInt64;
>+
>+void CheckInt32(int32_t x) {
>+  char buffer[absl::numbers_internal::kFastToBufferSize];
>+  char* actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
>+  std::string expected = std::to_string(x);
>+  EXPECT_EQ(expected, std::string(buffer, actual)) << " Input " << x;
>+
>+  char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
>+  EXPECT_EQ(expected, std::string(buffer, generic_actual)) << " Input " << x;
>+}
>+
>+void CheckInt64(int64_t x) {
>+  char buffer[absl::numbers_internal::kFastToBufferSize + 3];
>+  buffer[0] = '*';
>+  buffer[23] = '*';
>+  buffer[24] = '*';
>+  char* actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
>+  std::string expected = std::to_string(x);
>+  EXPECT_EQ(expected, std::string(&buffer[1], actual)) << " Input " << x;
>+  EXPECT_EQ(buffer[0], '*');
>+  EXPECT_EQ(buffer[23], '*');
>+  EXPECT_EQ(buffer[24], '*');
>+
>+  char* my_actual =
>+      absl::numbers_internal::FastIntToBuffer(MyInt64(x), &buffer[1]);
>+  EXPECT_EQ(expected, std::string(&buffer[1], my_actual)) << " Input " << x;
>+}
>+
>+void CheckUInt32(uint32_t x) {
>+  char buffer[absl::numbers_internal::kFastToBufferSize];
>+  char* actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
>+  std::string expected = std::to_string(x);
>+  EXPECT_EQ(expected, std::string(buffer, actual)) << " Input " << x;
>+
>+  char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, buffer);
>+  EXPECT_EQ(expected, std::string(buffer, generic_actual)) << " Input " << x;
>+}
>+
>+void CheckUInt64(uint64_t x) {
>+  char buffer[absl::numbers_internal::kFastToBufferSize + 1];
>+  char* actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
>+  std::string expected = std::to_string(x);
>+  EXPECT_EQ(expected, std::string(&buffer[1], actual)) << " Input " << x;
>+
>+  char* generic_actual = absl::numbers_internal::FastIntToBuffer(x, &buffer[1]);
>+  EXPECT_EQ(expected, std::string(&buffer[1], generic_actual)) << " Input " << x;
>+
>+  char* my_actual =
>+      absl::numbers_internal::FastIntToBuffer(MyUInt64(x), &buffer[1]);
>+  EXPECT_EQ(expected, std::string(&buffer[1], my_actual)) << " Input " << x;
>+}
>+
>+void CheckHex64(uint64_t v) {
>+  char expected[16 + 1];
>+  std::string actual = absl::StrCat(absl::Hex(v, absl::kZeroPad16));
>+  snprintf(expected, sizeof(expected), "%016" PRIx64, static_cast<uint64_t>(v));
>+  EXPECT_EQ(expected, actual) << " Input " << v;
>+}
>+
>+TEST(Numbers, TestFastPrints) {
>+  for (int i = -100; i <= 100; i++) {
>+    CheckInt32(i);
>+    CheckInt64(i);
>+  }
>+  for (int i = 0; i <= 100; i++) {
>+    CheckUInt32(i);
>+    CheckUInt64(i);
>+  }
>+  // Test min int to make sure that works
>+  CheckInt32(INT_MIN);
>+  CheckInt32(INT_MAX);
>+  CheckInt64(LONG_MIN);
>+  CheckInt64(uint64_t{1000000000});
>+  CheckInt64(uint64_t{9999999999});
>+  CheckInt64(uint64_t{100000000000000});
>+  CheckInt64(uint64_t{999999999999999});
>+  CheckInt64(uint64_t{1000000000000000000});
>+  CheckInt64(uint64_t{1199999999999999999});
>+  CheckInt64(int64_t{-700000000000000000});
>+  CheckInt64(LONG_MAX);
>+  CheckUInt32(std::numeric_limits<uint32_t>::max());
>+  CheckUInt64(uint64_t{1000000000});
>+  CheckUInt64(uint64_t{9999999999});
>+  CheckUInt64(uint64_t{100000000000000});
>+  CheckUInt64(uint64_t{999999999999999});
>+  CheckUInt64(uint64_t{1000000000000000000});
>+  CheckUInt64(uint64_t{1199999999999999999});
>+  CheckUInt64(std::numeric_limits<uint64_t>::max());
>+
>+  for (int i = 0; i < 10000; i++) {
>+    CheckHex64(i);
>+  }
>+  CheckHex64(uint64_t{0x123456789abcdef0});
>+}
>+
>+template <typename int_type, typename in_val_type>
>+void VerifySimpleAtoiGood(in_val_type in_value, int_type exp_value) {
>+  std::string s = absl::StrCat(in_value);
>+  int_type x = static_cast<int_type>(~exp_value);
>+  EXPECT_TRUE(SimpleAtoi(s, &x))
>+      << "in_value=" << in_value << " s=" << s << " x=" << x;
>+  EXPECT_EQ(exp_value, x);
>+  x = static_cast<int_type>(~exp_value);
>+  EXPECT_TRUE(SimpleAtoi(s.c_str(), &x));
>+  EXPECT_EQ(exp_value, x);
>+}
>+
>+template <typename int_type, typename in_val_type>
>+void VerifySimpleAtoiBad(in_val_type in_value) {
>+  std::string s = absl::StrCat(in_value);
>+  int_type x;
>+  EXPECT_FALSE(SimpleAtoi(s, &x));
>+  EXPECT_FALSE(SimpleAtoi(s.c_str(), &x));
>+}
>+
>+TEST(NumbersTest, Atoi) {
>+  // SimpleAtoi(absl::string_view, int32_t)
>+  VerifySimpleAtoiGood<int32_t>(0, 0);
>+  VerifySimpleAtoiGood<int32_t>(42, 42);
>+  VerifySimpleAtoiGood<int32_t>(-42, -42);
>+
>+  VerifySimpleAtoiGood<int32_t>(std::numeric_limits<int32_t>::min(),
>+                                std::numeric_limits<int32_t>::min());
>+  VerifySimpleAtoiGood<int32_t>(std::numeric_limits<int32_t>::max(),
>+                                std::numeric_limits<int32_t>::max());
>+
>+  // SimpleAtoi(absl::string_view, uint32_t)
>+  VerifySimpleAtoiGood<uint32_t>(0, 0);
>+  VerifySimpleAtoiGood<uint32_t>(42, 42);
>+  VerifySimpleAtoiBad<uint32_t>(-42);
>+
>+  VerifySimpleAtoiBad<uint32_t>(std::numeric_limits<int32_t>::min());
>+  VerifySimpleAtoiGood<uint32_t>(std::numeric_limits<int32_t>::max(),
>+                                 std::numeric_limits<int32_t>::max());
>+  VerifySimpleAtoiGood<uint32_t>(std::numeric_limits<uint32_t>::max(),
>+                                 std::numeric_limits<uint32_t>::max());
>+  VerifySimpleAtoiBad<uint32_t>(std::numeric_limits<int64_t>::min());
>+  VerifySimpleAtoiBad<uint32_t>(std::numeric_limits<int64_t>::max());
>+  VerifySimpleAtoiBad<uint32_t>(std::numeric_limits<uint64_t>::max());
>+
>+  // SimpleAtoi(absl::string_view, int64_t)
>+  VerifySimpleAtoiGood<int64_t>(0, 0);
>+  VerifySimpleAtoiGood<int64_t>(42, 42);
>+  VerifySimpleAtoiGood<int64_t>(-42, -42);
>+
>+  VerifySimpleAtoiGood<int64_t>(std::numeric_limits<int32_t>::min(),
>+                                std::numeric_limits<int32_t>::min());
>+  VerifySimpleAtoiGood<int64_t>(std::numeric_limits<int32_t>::max(),
>+                                std::numeric_limits<int32_t>::max());
>+  VerifySimpleAtoiGood<int64_t>(std::numeric_limits<uint32_t>::max(),
>+                                std::numeric_limits<uint32_t>::max());
>+  VerifySimpleAtoiGood<int64_t>(std::numeric_limits<int64_t>::min(),
>+                                std::numeric_limits<int64_t>::min());
>+  VerifySimpleAtoiGood<int64_t>(std::numeric_limits<int64_t>::max(),
>+                                std::numeric_limits<int64_t>::max());
>+  VerifySimpleAtoiBad<int64_t>(std::numeric_limits<uint64_t>::max());
>+
>+  // SimpleAtoi(absl::string_view, uint64_t)
>+  VerifySimpleAtoiGood<uint64_t>(0, 0);
>+  VerifySimpleAtoiGood<uint64_t>(42, 42);
>+  VerifySimpleAtoiBad<uint64_t>(-42);
>+
>+  VerifySimpleAtoiBad<uint64_t>(std::numeric_limits<int32_t>::min());
>+  VerifySimpleAtoiGood<uint64_t>(std::numeric_limits<int32_t>::max(),
>+                                 std::numeric_limits<int32_t>::max());
>+  VerifySimpleAtoiGood<uint64_t>(std::numeric_limits<uint32_t>::max(),
>+                                 std::numeric_limits<uint32_t>::max());
>+  VerifySimpleAtoiBad<uint64_t>(std::numeric_limits<int64_t>::min());
>+  VerifySimpleAtoiGood<uint64_t>(std::numeric_limits<int64_t>::max(),
>+                                 std::numeric_limits<int64_t>::max());
>+  VerifySimpleAtoiGood<uint64_t>(std::numeric_limits<uint64_t>::max(),
>+                                 std::numeric_limits<uint64_t>::max());
>+
>+  // Some other types
>+  VerifySimpleAtoiGood<int>(-42, -42);
>+  VerifySimpleAtoiGood<int32_t>(-42, -42);
>+  VerifySimpleAtoiGood<uint32_t>(42, 42);
>+  VerifySimpleAtoiGood<unsigned int>(42, 42);
>+  VerifySimpleAtoiGood<int64_t>(-42, -42);
>+  VerifySimpleAtoiGood<long>(-42, -42);  // NOLINT(runtime/int)
>+  VerifySimpleAtoiGood<uint64_t>(42, 42);
>+  VerifySimpleAtoiGood<size_t>(42, 42);
>+  VerifySimpleAtoiGood<std::string::size_type>(42, 42);
>+}
>+
>+TEST(NumbersTest, Atoenum) {
>+  enum E01 {
>+    E01_zero = 0,
>+    E01_one = 1,
>+  };
>+
>+  VerifySimpleAtoiGood<E01>(E01_zero, E01_zero);
>+  VerifySimpleAtoiGood<E01>(E01_one, E01_one);
>+
>+  enum E_101 {
>+    E_101_minusone = -1,
>+    E_101_zero = 0,
>+    E_101_one = 1,
>+  };
>+
>+  VerifySimpleAtoiGood<E_101>(E_101_minusone, E_101_minusone);
>+  VerifySimpleAtoiGood<E_101>(E_101_zero, E_101_zero);
>+  VerifySimpleAtoiGood<E_101>(E_101_one, E_101_one);
>+
>+  enum E_bigint {
>+    E_bigint_zero = 0,
>+    E_bigint_one = 1,
>+    E_bigint_max31 = static_cast<int32_t>(0x7FFFFFFF),
>+  };
>+
>+  VerifySimpleAtoiGood<E_bigint>(E_bigint_zero, E_bigint_zero);
>+  VerifySimpleAtoiGood<E_bigint>(E_bigint_one, E_bigint_one);
>+  VerifySimpleAtoiGood<E_bigint>(E_bigint_max31, E_bigint_max31);
>+
>+  enum E_fullint {
>+    E_fullint_zero = 0,
>+    E_fullint_one = 1,
>+    E_fullint_max31 = static_cast<int32_t>(0x7FFFFFFF),
>+    E_fullint_min32 = INT32_MIN,
>+  };
>+
>+  VerifySimpleAtoiGood<E_fullint>(E_fullint_zero, E_fullint_zero);
>+  VerifySimpleAtoiGood<E_fullint>(E_fullint_one, E_fullint_one);
>+  VerifySimpleAtoiGood<E_fullint>(E_fullint_max31, E_fullint_max31);
>+  VerifySimpleAtoiGood<E_fullint>(E_fullint_min32, E_fullint_min32);
>+
>+  enum E_biguint {
>+    E_biguint_zero = 0,
>+    E_biguint_one = 1,
>+    E_biguint_max31 = static_cast<uint32_t>(0x7FFFFFFF),
>+    E_biguint_max32 = static_cast<uint32_t>(0xFFFFFFFF),
>+  };
>+
>+  VerifySimpleAtoiGood<E_biguint>(E_biguint_zero, E_biguint_zero);
>+  VerifySimpleAtoiGood<E_biguint>(E_biguint_one, E_biguint_one);
>+  VerifySimpleAtoiGood<E_biguint>(E_biguint_max31, E_biguint_max31);
>+  VerifySimpleAtoiGood<E_biguint>(E_biguint_max32, E_biguint_max32);
>+}
>+
>+TEST(stringtest, safe_strto32_base) {
>+  int32_t value;
>+  EXPECT_TRUE(safe_strto32_base("0x34234324", &value, 16));
>+  EXPECT_EQ(0x34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("0X34234324", &value, 16));
>+  EXPECT_EQ(0x34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("34234324", &value, 16));
>+  EXPECT_EQ(0x34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("0", &value, 16));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto32_base(" \t\n -0x34234324", &value, 16));
>+  EXPECT_EQ(-0x34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base(" \t\n -34234324", &value, 16));
>+  EXPECT_EQ(-0x34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("7654321", &value, 8));
>+  EXPECT_EQ(07654321, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("-01234", &value, 8));
>+  EXPECT_EQ(-01234, value);
>+
>+  EXPECT_FALSE(safe_strto32_base("1834", &value, 8));
>+
>+  // Autodetect base.
>+  EXPECT_TRUE(safe_strto32_base("0", &value, 0));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("077", &value, 0));
>+  EXPECT_EQ(077, value);  // Octal interpretation
>+
>+  // Leading zero indicates octal, but then followed by invalid digit.
>+  EXPECT_FALSE(safe_strto32_base("088", &value, 0));
>+
>+  // Leading 0x indicated hex, but then followed by invalid digit.
>+  EXPECT_FALSE(safe_strto32_base("0xG", &value, 0));
>+
>+  // Base-10 version.
>+  EXPECT_TRUE(safe_strto32_base("34234324", &value, 10));
>+  EXPECT_EQ(34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("0", &value, 10));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto32_base(" \t\n -34234324", &value, 10));
>+  EXPECT_EQ(-34234324, value);
>+
>+  EXPECT_TRUE(safe_strto32_base("34234324 \n\t ", &value, 10));
>+  EXPECT_EQ(34234324, value);
>+
>+  // Invalid ints.
>+  EXPECT_FALSE(safe_strto32_base("", &value, 10));
>+  EXPECT_FALSE(safe_strto32_base("  ", &value, 10));
>+  EXPECT_FALSE(safe_strto32_base("abc", &value, 10));
>+  EXPECT_FALSE(safe_strto32_base("34234324a", &value, 10));
>+  EXPECT_FALSE(safe_strto32_base("34234.3", &value, 10));
>+
>+  // Out of bounds.
>+  EXPECT_FALSE(safe_strto32_base("2147483648", &value, 10));
>+  EXPECT_FALSE(safe_strto32_base("-2147483649", &value, 10));
>+
>+  // String version.
>+  EXPECT_TRUE(safe_strto32_base(std::string("0x1234"), &value, 16));
>+  EXPECT_EQ(0x1234, value);
>+
>+  // Base-10 std::string version.
>+  EXPECT_TRUE(safe_strto32_base("1234", &value, 10));
>+  EXPECT_EQ(1234, value);
>+}
>+
>+TEST(stringtest, safe_strto32_range) {
>+  // These tests verify underflow/overflow behaviour.
>+  int32_t value;
>+  EXPECT_FALSE(safe_strto32_base("2147483648", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int32_t>::max(), value);
>+
>+  EXPECT_TRUE(safe_strto32_base("-2147483648", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int32_t>::min(), value);
>+
>+  EXPECT_FALSE(safe_strto32_base("-2147483649", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int32_t>::min(), value);
>+}
>+
>+TEST(stringtest, safe_strto64_range) {
>+  // These tests verify underflow/overflow behaviour.
>+  int64_t value;
>+  EXPECT_FALSE(safe_strto64_base("9223372036854775808", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::max(), value);
>+
>+  EXPECT_TRUE(safe_strto64_base("-9223372036854775808", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::min(), value);
>+
>+  EXPECT_FALSE(safe_strto64_base("-9223372036854775809", &value, 10));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::min(), value);
>+}
>+
>+TEST(stringtest, safe_strto32_leading_substring) {
>+  // These tests verify this comment in numbers.h:
>+  // On error, returns false, and sets *value to: [...]
>+  //   conversion of leading substring if available ("123@@@" -> 123)
>+  //   0 if no leading substring available
>+  int32_t value;
>+  EXPECT_FALSE(safe_strto32_base("04069@@@", &value, 10));
>+  EXPECT_EQ(4069, value);
>+
>+  EXPECT_FALSE(safe_strto32_base("04069@@@", &value, 8));
>+  EXPECT_EQ(0406, value);
>+
>+  EXPECT_FALSE(safe_strto32_base("04069balloons", &value, 10));
>+  EXPECT_EQ(4069, value);
>+
>+  EXPECT_FALSE(safe_strto32_base("04069balloons", &value, 16));
>+  EXPECT_EQ(0x4069ba, value);
>+
>+  EXPECT_FALSE(safe_strto32_base("@@@", &value, 10));
>+  EXPECT_EQ(0, value);  // there was no leading substring
>+}
>+
>+TEST(stringtest, safe_strto64_leading_substring) {
>+  // These tests verify this comment in numbers.h:
>+  // On error, returns false, and sets *value to: [...]
>+  //   conversion of leading substring if available ("123@@@" -> 123)
>+  //   0 if no leading substring available
>+  int64_t value;
>+  EXPECT_FALSE(safe_strto64_base("04069@@@", &value, 10));
>+  EXPECT_EQ(4069, value);
>+
>+  EXPECT_FALSE(safe_strto64_base("04069@@@", &value, 8));
>+  EXPECT_EQ(0406, value);
>+
>+  EXPECT_FALSE(safe_strto64_base("04069balloons", &value, 10));
>+  EXPECT_EQ(4069, value);
>+
>+  EXPECT_FALSE(safe_strto64_base("04069balloons", &value, 16));
>+  EXPECT_EQ(0x4069ba, value);
>+
>+  EXPECT_FALSE(safe_strto64_base("@@@", &value, 10));
>+  EXPECT_EQ(0, value);  // there was no leading substring
>+}
>+
>+TEST(stringtest, safe_strto64_base) {
>+  int64_t value;
>+  EXPECT_TRUE(safe_strto64_base("0x3423432448783446", &value, 16));
>+  EXPECT_EQ(int64_t{0x3423432448783446}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("3423432448783446", &value, 16));
>+  EXPECT_EQ(int64_t{0x3423432448783446}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("0", &value, 16));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto64_base(" \t\n -0x3423432448783446", &value, 16));
>+  EXPECT_EQ(int64_t{-0x3423432448783446}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base(" \t\n -3423432448783446", &value, 16));
>+  EXPECT_EQ(int64_t{-0x3423432448783446}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("123456701234567012", &value, 8));
>+  EXPECT_EQ(int64_t{0123456701234567012}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("-017777777777777", &value, 8));
>+  EXPECT_EQ(int64_t{-017777777777777}, value);
>+
>+  EXPECT_FALSE(safe_strto64_base("19777777777777", &value, 8));
>+
>+  // Autodetect base.
>+  EXPECT_TRUE(safe_strto64_base("0", &value, 0));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("077", &value, 0));
>+  EXPECT_EQ(077, value);  // Octal interpretation
>+
>+  // Leading zero indicates octal, but then followed by invalid digit.
>+  EXPECT_FALSE(safe_strto64_base("088", &value, 0));
>+
>+  // Leading 0x indicated hex, but then followed by invalid digit.
>+  EXPECT_FALSE(safe_strto64_base("0xG", &value, 0));
>+
>+  // Base-10 version.
>+  EXPECT_TRUE(safe_strto64_base("34234324487834466", &value, 10));
>+  EXPECT_EQ(int64_t{34234324487834466}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("0", &value, 10));
>+  EXPECT_EQ(0, value);
>+
>+  EXPECT_TRUE(safe_strto64_base(" \t\n -34234324487834466", &value, 10));
>+  EXPECT_EQ(int64_t{-34234324487834466}, value);
>+
>+  EXPECT_TRUE(safe_strto64_base("34234324487834466 \n\t ", &value, 10));
>+  EXPECT_EQ(int64_t{34234324487834466}, value);
>+
>+  // Invalid ints.
>+  EXPECT_FALSE(safe_strto64_base("", &value, 10));
>+  EXPECT_FALSE(safe_strto64_base("  ", &value, 10));
>+  EXPECT_FALSE(safe_strto64_base("abc", &value, 10));
>+  EXPECT_FALSE(safe_strto64_base("34234324487834466a", &value, 10));
>+  EXPECT_FALSE(safe_strto64_base("34234487834466.3", &value, 10));
>+
>+  // Out of bounds.
>+  EXPECT_FALSE(safe_strto64_base("9223372036854775808", &value, 10));
>+  EXPECT_FALSE(safe_strto64_base("-9223372036854775809", &value, 10));
>+
>+  // String version.
>+  EXPECT_TRUE(safe_strto64_base(std::string("0x1234"), &value, 16));
>+  EXPECT_EQ(0x1234, value);
>+
>+  // Base-10 std::string version.
>+  EXPECT_TRUE(safe_strto64_base("1234", &value, 10));
>+  EXPECT_EQ(1234, value);
>+}
>+
>+const size_t kNumRandomTests = 10000;
>+
>+template <typename IntType>
>+void test_random_integer_parse_base(bool (*parse_func)(absl::string_view,
>+                                                       IntType* value,
>+                                                       int base)) {
>+  using RandomEngine = std::minstd_rand0;
>+  std::random_device rd;
>+  RandomEngine rng(rd());
>+  std::uniform_int_distribution<IntType> random_int(
>+      std::numeric_limits<IntType>::min());
>+  std::uniform_int_distribution<int> random_base(2, 35);
>+  for (size_t i = 0; i < kNumRandomTests; i++) {
>+    IntType value = random_int(rng);
>+    int base = random_base(rng);
>+    std::string str_value;
>+    EXPECT_TRUE(Itoa<IntType>(value, base, &str_value));
>+    IntType parsed_value;
>+
>+    // Test successful parse
>+    EXPECT_TRUE(parse_func(str_value, &parsed_value, base));
>+    EXPECT_EQ(parsed_value, value);
>+
>+    // Test overflow
>+    EXPECT_FALSE(
>+        parse_func(absl::StrCat(std::numeric_limits<IntType>::max(), value),
>+                   &parsed_value, base));
>+
>+    // Test underflow
>+    if (std::numeric_limits<IntType>::min() < 0) {
>+      EXPECT_FALSE(
>+          parse_func(absl::StrCat(std::numeric_limits<IntType>::min(), value),
>+                     &parsed_value, base));
>+    } else {
>+      EXPECT_FALSE(parse_func(absl::StrCat("-", value), &parsed_value, base));
>+    }
>+  }
>+}
>+
>+TEST(stringtest, safe_strto32_random) {
>+  test_random_integer_parse_base<int32_t>(&safe_strto32_base);
>+}
>+TEST(stringtest, safe_strto64_random) {
>+  test_random_integer_parse_base<int64_t>(&safe_strto64_base);
>+}
>+TEST(stringtest, safe_strtou32_random) {
>+  test_random_integer_parse_base<uint32_t>(&safe_strtou32_base);
>+}
>+TEST(stringtest, safe_strtou64_random) {
>+  test_random_integer_parse_base<uint64_t>(&safe_strtou64_base);
>+}
>+
>+TEST(stringtest, safe_strtou32_base) {
>+  for (int i = 0; strtouint32_test_cases()[i].str != nullptr; ++i) {
>+    const auto& e = strtouint32_test_cases()[i];
>+    uint32_t value;
>+    EXPECT_EQ(e.expect_ok, safe_strtou32_base(e.str, &value, e.base))
>+        << "str=\"" << e.str << "\" base=" << e.base;
>+    if (e.expect_ok) {
>+      EXPECT_EQ(e.expected, value) << "i=" << i << " str=\"" << e.str
>+                                   << "\" base=" << e.base;
>+    }
>+  }
>+}
>+
>+TEST(stringtest, safe_strtou32_base_length_delimited) {
>+  for (int i = 0; strtouint32_test_cases()[i].str != nullptr; ++i) {
>+    const auto& e = strtouint32_test_cases()[i];
>+    std::string tmp(e.str);
>+    tmp.append("12");  // Adds garbage at the end.
>+
>+    uint32_t value;
>+    EXPECT_EQ(e.expect_ok,
>+              safe_strtou32_base(absl::string_view(tmp.data(), strlen(e.str)),
>+                                 &value, e.base))
>+        << "str=\"" << e.str << "\" base=" << e.base;
>+    if (e.expect_ok) {
>+      EXPECT_EQ(e.expected, value) << "i=" << i << " str=" << e.str
>+                                   << " base=" << e.base;
>+    }
>+  }
>+}
>+
>+TEST(stringtest, safe_strtou64_base) {
>+  for (int i = 0; strtouint64_test_cases()[i].str != nullptr; ++i) {
>+    const auto& e = strtouint64_test_cases()[i];
>+    uint64_t value;
>+    EXPECT_EQ(e.expect_ok, safe_strtou64_base(e.str, &value, e.base))
>+        << "str=\"" << e.str << "\" base=" << e.base;
>+    if (e.expect_ok) {
>+      EXPECT_EQ(e.expected, value) << "str=" << e.str << " base=" << e.base;
>+    }
>+  }
>+}
>+
>+TEST(stringtest, safe_strtou64_base_length_delimited) {
>+  for (int i = 0; strtouint64_test_cases()[i].str != nullptr; ++i) {
>+    const auto& e = strtouint64_test_cases()[i];
>+    std::string tmp(e.str);
>+    tmp.append("12");  // Adds garbage at the end.
>+
>+    uint64_t value;
>+    EXPECT_EQ(e.expect_ok,
>+              safe_strtou64_base(absl::string_view(tmp.data(), strlen(e.str)),
>+                                 &value, e.base))
>+        << "str=\"" << e.str << "\" base=" << e.base;
>+    if (e.expect_ok) {
>+      EXPECT_EQ(e.expected, value) << "str=\"" << e.str << "\" base=" << e.base;
>+    }
>+  }
>+}
>+
>+// feenableexcept() and fedisableexcept() are missing on Mac OS X, MSVC,
>+// and WebAssembly.
>+#if defined(_MSC_VER) || defined(__APPLE__) || defined(__EMSCRIPTEN__)
>+#define ABSL_MISSING_FEENABLEEXCEPT 1
>+#define ABSL_MISSING_FEDISABLEEXCEPT 1
>+#endif
>+
>+class SimpleDtoaTest : public testing::Test {
>+ protected:
>+  void SetUp() override {
>+    // Store the current floating point env & clear away any pending exceptions.
>+    feholdexcept(&fp_env_);
>+#ifndef ABSL_MISSING_FEENABLEEXCEPT
>+    // Turn on floating point exceptions.
>+    feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
>+#endif
>+  }
>+
>+  void TearDown() override {
>+    // Restore the floating point environment to the original state.
>+    // In theory fedisableexcept is unnecessary; fesetenv will also do it.
>+    // In practice, our toolchains have subtle bugs.
>+#ifndef ABSL_MISSING_FEDISABLEEXCEPT
>+    fedisableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
>+#endif
>+    fesetenv(&fp_env_);
>+  }
>+
>+  std::string ToNineDigits(double value) {
>+    char buffer[16];  // more than enough for %.9g
>+    snprintf(buffer, sizeof(buffer), "%.9g", value);
>+    return buffer;
>+  }
>+
>+  fenv_t fp_env_;
>+};
>+
>+// Run the given runnable functor for "cases" test cases, chosen over the
>+// available range of float.  pi and e and 1/e are seeded, and then all
>+// available integer powers of 2 and 10 are multiplied against them.  In
>+// addition to trying all those values, we try the next higher and next lower
>+// float, and then we add additional test cases evenly distributed between them.
>+// Each test case is passed to runnable as both a positive and negative value.
>+template <typename R>
>+void ExhaustiveFloat(uint32_t cases, R&& runnable) {
>+  runnable(0.0f);
>+  runnable(-0.0f);
>+  if (cases >= 2e9) {  // more than 2 billion?  Might as well run them all.
>+    for (float f = 0; f < std::numeric_limits<float>::max(); ) {
>+      f = nextafterf(f, std::numeric_limits<float>::max());
>+      runnable(-f);
>+      runnable(f);
>+    }
>+    return;
>+  }
>+  std::set<float> floats = {3.4028234e38f};
>+  for (float f : {1.0, 3.14159265, 2.718281828, 1 / 2.718281828}) {
>+    for (float testf = f; testf != 0; testf *= 0.1f) floats.insert(testf);
>+    for (float testf = f; testf != 0; testf *= 0.5f) floats.insert(testf);
>+    for (float testf = f; testf < 3e38f / 2; testf *= 2.0f)
>+      floats.insert(testf);
>+    for (float testf = f; testf < 3e38f / 10; testf *= 10) floats.insert(testf);
>+  }
>+
>+  float last = *floats.begin();
>+
>+  runnable(last);
>+  runnable(-last);
>+  int iters_per_float = cases / floats.size();
>+  if (iters_per_float == 0) iters_per_float = 1;
>+  for (float f : floats) {
>+    if (f == last) continue;
>+    float testf = nextafter(last, std::numeric_limits<float>::max());
>+    runnable(testf);
>+    runnable(-testf);
>+    last = testf;
>+    if (f == last) continue;
>+    double step = (double{f} - last) / iters_per_float;
>+    for (double d = last + step; d < f; d += step) {
>+      testf = d;
>+      if (testf != last) {
>+        runnable(testf);
>+        runnable(-testf);
>+        last = testf;
>+      }
>+    }
>+    testf = nextafter(f, 0.0f);
>+    if (testf > last) {
>+      runnable(testf);
>+      runnable(-testf);
>+      last = testf;
>+    }
>+    if (f != last) {
>+      runnable(f);
>+      runnable(-f);
>+      last = f;
>+    }
>+  }
>+}
>+
>+TEST_F(SimpleDtoaTest, ExhaustiveDoubleToSixDigits) {
>+  uint64_t test_count = 0;
>+  std::vector<double> mismatches;
>+  auto checker = [&](double d) {
>+    if (d != d) return;  // rule out NaNs
>+    ++test_count;
>+    char sixdigitsbuf[kSixDigitsToBufferSize] = {0};
>+    SixDigitsToBuffer(d, sixdigitsbuf);
>+    char snprintfbuf[kSixDigitsToBufferSize] = {0};
>+    snprintf(snprintfbuf, kSixDigitsToBufferSize, "%g", d);
>+    if (strcmp(sixdigitsbuf, snprintfbuf) != 0) {
>+      mismatches.push_back(d);
>+      if (mismatches.size() < 10) {
>+        ABSL_RAW_LOG(ERROR, "%s",
>+                     absl::StrCat("Six-digit failure with double.  ", "d=", d,
>+                                  "=", d, " sixdigits=", sixdigitsbuf,
>+                                  " printf(%g)=", snprintfbuf)
>+                         .c_str());
>+      }
>+    }
>+  };
>+  // Some quick sanity checks...
>+  checker(5e-324);
>+  checker(1e-308);
>+  checker(1.0);
>+  checker(1.000005);
>+  checker(1.7976931348623157e308);
>+  checker(0.00390625);
>+#ifndef _MSC_VER
>+  // on MSVC, snprintf() rounds it to 0.00195313. SixDigitsToBuffer() rounds it
>+  // to 0.00195312 (round half to even).
>+  checker(0.001953125);
>+#endif
>+  checker(0.005859375);
>+  // Some cases where the rounding is very very close
>+  checker(1.089095e-15);
>+  checker(3.274195e-55);
>+  checker(6.534355e-146);
>+  checker(2.920845e+234);
>+
>+  if (mismatches.empty()) {
>+    test_count = 0;
>+    ExhaustiveFloat(kFloatNumCases, checker);
>+
>+    test_count = 0;
>+    std::vector<int> digit_testcases{
>+        100000, 100001, 100002, 100005, 100010, 100020, 100050, 100100,  // misc
>+        195312, 195313,  // 1.953125 is a case where we round down, just barely.
>+        200000, 500000, 800000,  // misc mid-range cases
>+        585937, 585938,  // 5.859375 is a case where we round up, just barely.
>+        900000, 990000, 999000, 999900, 999990, 999996, 999997, 999998, 999999};
>+    if (kFloatNumCases >= 1e9) {
>+      // If at least 1 billion test cases were requested, user wants an
>+      // exhaustive test. So let's test all mantissas, too.
>+      constexpr int min_mantissa = 100000, max_mantissa = 999999;
>+      digit_testcases.resize(max_mantissa - min_mantissa + 1);
>+      std::iota(digit_testcases.begin(), digit_testcases.end(), min_mantissa);
>+    }
>+
>+    for (int exponent = -324; exponent <= 308; ++exponent) {
>+      double powten = pow(10.0, exponent);
>+      if (powten == 0) powten = 5e-324;
>+      if (kFloatNumCases >= 1e9) {
>+        // The exhaustive test takes a very long time, so log progress.
>+        char buf[kSixDigitsToBufferSize];
>+        ABSL_RAW_LOG(
>+            INFO, "%s",
>+            absl::StrCat("Exp ", exponent, " powten=", powten, "(",
>+                         powten, ") (",
>+                         std::string(buf, SixDigitsToBuffer(powten, buf)), ")")
>+                .c_str());
>+      }
>+      for (int digits : digit_testcases) {
>+        if (exponent == 308 && digits >= 179769) break;  // don't overflow!
>+        double digiform = (digits + 0.5) * 0.00001;
>+        double testval = digiform * powten;
>+        double pretestval = nextafter(testval, 0);
>+        double posttestval = nextafter(testval, 1.7976931348623157e308);
>+        checker(testval);
>+        checker(pretestval);
>+        checker(posttestval);
>+      }
>+    }
>+  } else {
>+    EXPECT_EQ(mismatches.size(), 0);
>+    for (size_t i = 0; i < mismatches.size(); ++i) {
>+      if (i > 100) i = mismatches.size() - 1;
>+      double d = mismatches[i];
>+      char sixdigitsbuf[kSixDigitsToBufferSize] = {0};
>+      SixDigitsToBuffer(d, sixdigitsbuf);
>+      char snprintfbuf[kSixDigitsToBufferSize] = {0};
>+      snprintf(snprintfbuf, kSixDigitsToBufferSize, "%g", d);
>+      double before = nextafter(d, 0.0);
>+      double after = nextafter(d, 1.7976931348623157e308);
>+      char b1[32], b2[kSixDigitsToBufferSize];
>+      ABSL_RAW_LOG(
>+          ERROR, "%s",
>+          absl::StrCat(
>+              "Mismatch #", i, "  d=", d, " (", ToNineDigits(d), ")",
>+              " sixdigits='", sixdigitsbuf, "'", " snprintf='", snprintfbuf,
>+              "'", " Before.=", PerfectDtoa(before), " ",
>+              (SixDigitsToBuffer(before, b2), b2),
>+              " vs snprintf=", (snprintf(b1, sizeof(b1), "%g", before), b1),
>+              " Perfect=", PerfectDtoa(d), " ", (SixDigitsToBuffer(d, b2), b2),
>+              " vs snprintf=", (snprintf(b1, sizeof(b1), "%g", d), b1),
>+              " After.=.", PerfectDtoa(after), " ",
>+              (SixDigitsToBuffer(after, b2), b2),
>+              " vs snprintf=", (snprintf(b1, sizeof(b1), "%g", after), b1))
>+              .c_str());
>+    }
>+  }
>+}
>+
>+TEST(StrToInt32, Partial) {
>+  struct Int32TestLine {
>+    std::string input;
>+    bool status;
>+    int32_t value;
>+  };
>+  const int32_t int32_min = std::numeric_limits<int32_t>::min();
>+  const int32_t int32_max = std::numeric_limits<int32_t>::max();
>+  Int32TestLine int32_test_line[] = {
>+      {"", false, 0},
>+      {" ", false, 0},
>+      {"-", false, 0},
>+      {"123@@@", false, 123},
>+      {absl::StrCat(int32_min, int32_max), false, int32_min},
>+      {absl::StrCat(int32_max, int32_max), false, int32_max},
>+  };
>+
>+  for (const Int32TestLine& test_line : int32_test_line) {
>+    int32_t value = -2;
>+    bool status = safe_strto32_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = -2;
>+    status = safe_strto32_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = -2;
>+    status = safe_strto32_base(absl::string_view(test_line.input), &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+  }
>+}
>+
>+TEST(StrToUint32, Partial) {
>+  struct Uint32TestLine {
>+    std::string input;
>+    bool status;
>+    uint32_t value;
>+  };
>+  const uint32_t uint32_max = std::numeric_limits<uint32_t>::max();
>+  Uint32TestLine uint32_test_line[] = {
>+      {"", false, 0},
>+      {" ", false, 0},
>+      {"-", false, 0},
>+      {"123@@@", false, 123},
>+      {absl::StrCat(uint32_max, uint32_max), false, uint32_max},
>+  };
>+
>+  for (const Uint32TestLine& test_line : uint32_test_line) {
>+    uint32_t value = 2;
>+    bool status = safe_strtou32_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = 2;
>+    status = safe_strtou32_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = 2;
>+    status = safe_strtou32_base(absl::string_view(test_line.input), &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+  }
>+}
>+
>+TEST(StrToInt64, Partial) {
>+  struct Int64TestLine {
>+    std::string input;
>+    bool status;
>+    int64_t value;
>+  };
>+  const int64_t int64_min = std::numeric_limits<int64_t>::min();
>+  const int64_t int64_max = std::numeric_limits<int64_t>::max();
>+  Int64TestLine int64_test_line[] = {
>+      {"", false, 0},
>+      {" ", false, 0},
>+      {"-", false, 0},
>+      {"123@@@", false, 123},
>+      {absl::StrCat(int64_min, int64_max), false, int64_min},
>+      {absl::StrCat(int64_max, int64_max), false, int64_max},
>+  };
>+
>+  for (const Int64TestLine& test_line : int64_test_line) {
>+    int64_t value = -2;
>+    bool status = safe_strto64_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = -2;
>+    status = safe_strto64_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = -2;
>+    status = safe_strto64_base(absl::string_view(test_line.input), &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+  }
>+}
>+
>+TEST(StrToUint64, Partial) {
>+  struct Uint64TestLine {
>+    std::string input;
>+    bool status;
>+    uint64_t value;
>+  };
>+  const uint64_t uint64_max = std::numeric_limits<uint64_t>::max();
>+  Uint64TestLine uint64_test_line[] = {
>+      {"", false, 0},
>+      {" ", false, 0},
>+      {"-", false, 0},
>+      {"123@@@", false, 123},
>+      {absl::StrCat(uint64_max, uint64_max), false, uint64_max},
>+  };
>+
>+  for (const Uint64TestLine& test_line : uint64_test_line) {
>+    uint64_t value = 2;
>+    bool status = safe_strtou64_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = 2;
>+    status = safe_strtou64_base(test_line.input, &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+    value = 2;
>+    status = safe_strtou64_base(absl::string_view(test_line.input), &value, 10);
>+    EXPECT_EQ(test_line.status, status) << test_line.input;
>+    EXPECT_EQ(test_line.value, value) << test_line.input;
>+  }
>+}
>+
>+TEST(StrToInt32Base, PrefixOnly) {
>+  struct Int32TestLine {
>+    std::string input;
>+    bool status;
>+    int32_t value;
>+  };
>+  Int32TestLine int32_test_line[] = {
>+    { "", false, 0 },
>+    { "-", false, 0 },
>+    { "-0", true, 0 },
>+    { "0", true, 0 },
>+    { "0x", false, 0 },
>+    { "-0x", false, 0 },
>+  };
>+  const int base_array[] = { 0, 2, 8, 10, 16 };
>+
>+  for (const Int32TestLine& line : int32_test_line) {
>+    for (const int base : base_array) {
>+      int32_t value = 2;
>+      bool status = safe_strto32_base(line.input.c_str(), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strto32_base(line.input, &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strto32_base(absl::string_view(line.input), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+    }
>+  }
>+}
>+
>+TEST(StrToUint32Base, PrefixOnly) {
>+  struct Uint32TestLine {
>+    std::string input;
>+    bool status;
>+    uint32_t value;
>+  };
>+  Uint32TestLine uint32_test_line[] = {
>+    { "", false, 0 },
>+    { "0", true, 0 },
>+    { "0x", false, 0 },
>+  };
>+  const int base_array[] = { 0, 2, 8, 10, 16 };
>+
>+  for (const Uint32TestLine& line : uint32_test_line) {
>+    for (const int base : base_array) {
>+      uint32_t value = 2;
>+      bool status = safe_strtou32_base(line.input.c_str(), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strtou32_base(line.input, &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strtou32_base(absl::string_view(line.input), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+    }
>+  }
>+}
>+
>+TEST(StrToInt64Base, PrefixOnly) {
>+  struct Int64TestLine {
>+    std::string input;
>+    bool status;
>+    int64_t value;
>+  };
>+  Int64TestLine int64_test_line[] = {
>+    { "", false, 0 },
>+    { "-", false, 0 },
>+    { "-0", true, 0 },
>+    { "0", true, 0 },
>+    { "0x", false, 0 },
>+    { "-0x", false, 0 },
>+  };
>+  const int base_array[] = { 0, 2, 8, 10, 16 };
>+
>+  for (const Int64TestLine& line : int64_test_line) {
>+    for (const int base : base_array) {
>+      int64_t value = 2;
>+      bool status = safe_strto64_base(line.input.c_str(), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strto64_base(line.input, &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strto64_base(absl::string_view(line.input), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+    }
>+  }
>+}
>+
>+TEST(StrToUint64Base, PrefixOnly) {
>+  struct Uint64TestLine {
>+    std::string input;
>+    bool status;
>+    uint64_t value;
>+  };
>+  Uint64TestLine uint64_test_line[] = {
>+    { "", false, 0 },
>+    { "0", true, 0 },
>+    { "0x", false, 0 },
>+  };
>+  const int base_array[] = { 0, 2, 8, 10, 16 };
>+
>+  for (const Uint64TestLine& line : uint64_test_line) {
>+    for (const int base : base_array) {
>+      uint64_t value = 2;
>+      bool status = safe_strtou64_base(line.input.c_str(), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strtou64_base(line.input, &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+      value = 2;
>+      status = safe_strtou64_base(absl::string_view(line.input), &value, base);
>+      EXPECT_EQ(line.status, status) << line.input << " " << base;
>+      EXPECT_EQ(line.value, value) << line.input << " " << base;
>+    }
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3fe8c95eca9ef979491693638900858b08725d0b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.cc
>@@ -0,0 +1,239 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_cat.h"
>+
>+#include <assert.h>
>+#include <algorithm>
>+#include <cstdint>
>+#include <cstring>
>+
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/internal/resize_uninitialized.h"
>+
>+namespace absl {
>+
>+AlphaNum::AlphaNum(Hex hex) {
>+  char* const end = &digits_[numbers_internal::kFastToBufferSize];
>+  char* writer = end;
>+  uint64_t value = hex.value;
>+  static const char hexdigits[] = "0123456789abcdef";
>+  do {
>+    *--writer = hexdigits[value & 0xF];
>+    value >>= 4;
>+  } while (value != 0);
>+
>+  char* beg;
>+  if (end - writer < hex.width) {
>+    beg = end - hex.width;
>+    std::fill_n(beg, writer - beg, hex.fill);
>+  } else {
>+    beg = writer;
>+  }
>+
>+  piece_ = absl::string_view(beg, end - beg);
>+}
>+
>+AlphaNum::AlphaNum(Dec dec) {
>+  assert(dec.width <= numbers_internal::kFastToBufferSize);
>+  char* const end = &digits_[numbers_internal::kFastToBufferSize];
>+  char* const minfill = end - dec.width;
>+  char* writer = end;
>+  uint64_t value = dec.value;
>+  bool neg = dec.neg;
>+  while (value > 9) {
>+    *--writer = '0' + (value % 10);
>+    value /= 10;
>+  }
>+  *--writer = '0' + value;
>+  if (neg) *--writer = '-';
>+
>+  ptrdiff_t fillers = writer - minfill;
>+  if (fillers > 0) {
>+    // Tricky: if the fill character is ' ', then it's <fill><+/-><digits>
>+    // But...: if the fill character is '0', then it's <+/-><fill><digits>
>+    bool add_sign_again = false;
>+    if (neg && dec.fill == '0') {  // If filling with '0',
>+      ++writer;                    // ignore the sign we just added
>+      add_sign_again = true;       // and re-add the sign later.
>+    }
>+    writer -= fillers;
>+    std::fill_n(writer, fillers, dec.fill);
>+    if (add_sign_again) *--writer = '-';
>+  }
>+
>+  piece_ = absl::string_view(writer, end - writer);
>+}
>+
>+// ----------------------------------------------------------------------
>+// StrCat()
>+//    This merges the given strings or integers, with no delimiter.  This
>+//    is designed to be the fastest possible way to construct a std::string out
>+//    of a mix of raw C strings, StringPieces, strings, and integer values.
>+// ----------------------------------------------------------------------
>+
>+// Append is merely a version of memcpy that returns the address of the byte
>+// after the area just overwritten.
>+static char* Append(char* out, const AlphaNum& x) {
>+  // memcpy is allowed to overwrite arbitrary memory, so doing this after the
>+  // call would force an extra fetch of x.size().
>+  char* after = out + x.size();
>+  memcpy(out, x.data(), x.size());
>+  return after;
>+}
>+
>+std::string StrCat(const AlphaNum& a, const AlphaNum& b) {
>+  std::string result;
>+  absl::strings_internal::STLStringResizeUninitialized(&result,
>+                                                       a.size() + b.size());
>+  char* const begin = &*result.begin();
>+  char* out = begin;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  assert(out == begin + result.size());
>+  return result;
>+}
>+
>+std::string StrCat(const AlphaNum& a, const AlphaNum& b, const AlphaNum& c) {
>+  std::string result;
>+  strings_internal::STLStringResizeUninitialized(
>+      &result, a.size() + b.size() + c.size());
>+  char* const begin = &*result.begin();
>+  char* out = begin;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  out = Append(out, c);
>+  assert(out == begin + result.size());
>+  return result;
>+}
>+
>+std::string StrCat(const AlphaNum& a, const AlphaNum& b, const AlphaNum& c,
>+              const AlphaNum& d) {
>+  std::string result;
>+  strings_internal::STLStringResizeUninitialized(
>+      &result, a.size() + b.size() + c.size() + d.size());
>+  char* const begin = &*result.begin();
>+  char* out = begin;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  out = Append(out, c);
>+  out = Append(out, d);
>+  assert(out == begin + result.size());
>+  return result;
>+}
>+
>+namespace strings_internal {
>+
>+// Do not call directly - these are not part of the public API.
>+std::string CatPieces(std::initializer_list<absl::string_view> pieces) {
>+  std::string result;
>+  size_t total_size = 0;
>+  for (const absl::string_view piece : pieces) total_size += piece.size();
>+  strings_internal::STLStringResizeUninitialized(&result, total_size);
>+
>+  char* const begin = &*result.begin();
>+  char* out = begin;
>+  for (const absl::string_view piece : pieces) {
>+    const size_t this_size = piece.size();
>+    memcpy(out, piece.data(), this_size);
>+    out += this_size;
>+  }
>+  assert(out == begin + result.size());
>+  return result;
>+}
>+
>+// It's possible to call StrAppend with an absl::string_view that is itself a
>+// fragment of the std::string we're appending to.  However the results of this are
>+// random. Therefore, check for this in debug mode.  Use unsigned math so we
>+// only have to do one comparison. Note, there's an exception case: appending an
>+// empty std::string is always allowed.
>+#define ASSERT_NO_OVERLAP(dest, src) \
>+  assert(((src).size() == 0) ||      \
>+         (uintptr_t((src).data() - (dest).data()) > uintptr_t((dest).size())))
>+
>+void AppendPieces(std::string* dest,
>+                  std::initializer_list<absl::string_view> pieces) {
>+  size_t old_size = dest->size();
>+  size_t total_size = old_size;
>+  for (const absl::string_view piece : pieces) {
>+    ASSERT_NO_OVERLAP(*dest, piece);
>+    total_size += piece.size();
>+  }
>+  strings_internal::STLStringResizeUninitialized(dest, total_size);
>+
>+  char* const begin = &*dest->begin();
>+  char* out = begin + old_size;
>+  for (const absl::string_view piece : pieces) {
>+    const size_t this_size = piece.size();
>+    memcpy(out, piece.data(), this_size);
>+    out += this_size;
>+  }
>+  assert(out == begin + dest->size());
>+}
>+
>+}  // namespace strings_internal
>+
>+void StrAppend(std::string* dest, const AlphaNum& a) {
>+  ASSERT_NO_OVERLAP(*dest, a);
>+  dest->append(a.data(), a.size());
>+}
>+
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b) {
>+  ASSERT_NO_OVERLAP(*dest, a);
>+  ASSERT_NO_OVERLAP(*dest, b);
>+  std::string::size_type old_size = dest->size();
>+  strings_internal::STLStringResizeUninitialized(
>+      dest, old_size + a.size() + b.size());
>+  char* const begin = &*dest->begin();
>+  char* out = begin + old_size;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  assert(out == begin + dest->size());
>+}
>+
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
>+               const AlphaNum& c) {
>+  ASSERT_NO_OVERLAP(*dest, a);
>+  ASSERT_NO_OVERLAP(*dest, b);
>+  ASSERT_NO_OVERLAP(*dest, c);
>+  std::string::size_type old_size = dest->size();
>+  strings_internal::STLStringResizeUninitialized(
>+      dest, old_size + a.size() + b.size() + c.size());
>+  char* const begin = &*dest->begin();
>+  char* out = begin + old_size;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  out = Append(out, c);
>+  assert(out == begin + dest->size());
>+}
>+
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
>+               const AlphaNum& c, const AlphaNum& d) {
>+  ASSERT_NO_OVERLAP(*dest, a);
>+  ASSERT_NO_OVERLAP(*dest, b);
>+  ASSERT_NO_OVERLAP(*dest, c);
>+  ASSERT_NO_OVERLAP(*dest, d);
>+  std::string::size_type old_size = dest->size();
>+  strings_internal::STLStringResizeUninitialized(
>+      dest, old_size + a.size() + b.size() + c.size() + d.size());
>+  char* const begin = &*dest->begin();
>+  char* out = begin + old_size;
>+  out = Append(out, a);
>+  out = Append(out, b);
>+  out = Append(out, c);
>+  out = Append(out, d);
>+  assert(out == begin + dest->size());
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e5501a5012ee8d9cf79cbe6b50b04756d191bf9e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat.h
>@@ -0,0 +1,385 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: str_cat.h
>+// -----------------------------------------------------------------------------
>+//
>+// This package contains functions for efficiently concatenating and appending
>+// strings: `StrCat()` and `StrAppend()`. Most of the work within these routines
>+// is actually handled through use of a special AlphaNum type, which was
>+// designed to be used as a parameter type that efficiently manages conversion
>+// to strings and avoids copies in the above operations.
>+//
>+// Any routine accepting either a std::string or a number may accept `AlphaNum`.
>+// The basic idea is that by accepting a `const AlphaNum &` as an argument
>+// to your function, your callers will automagically convert bools, integers,
>+// and floating point values to strings for you.
>+//
>+// NOTE: Use of `AlphaNum` outside of the //absl/strings package is unsupported
>+// except for the specific case of function parameters of type `AlphaNum` or
>+// `const AlphaNum &`. In particular, instantiating `AlphaNum` directly as a
>+// stack variable is not supported.
>+//
>+// Conversion from 8-bit values is not accepted because, if it were, then an
>+// attempt to pass ':' instead of ":" might result in a 58 ending up in your
>+// result.
>+//
>+// Bools convert to "0" or "1".
>+//
>+// Floating point numbers are formatted with six-digit precision, which is
>+// the default for "std::cout <<" or printf "%g" (the same as "%.6g").
>+//
>+//
>+// You can convert to hexadecimal output rather than decimal output using the
>+// `Hex` type contained here. To do so, pass `Hex(my_int)` as a parameter to
>+// `StrCat()` or `StrAppend()`. You may specify a minimum hex field width using
>+// a `PadSpec` enum.
>+//
>+// -----------------------------------------------------------------------------
>+
>+#ifndef ABSL_STRINGS_STR_CAT_H_
>+#define ABSL_STRINGS_STR_CAT_H_
>+
>+#include <array>
>+#include <cstdint>
>+#include <string>
>+#include <type_traits>
>+
>+#include "absl/base/port.h"
>+#include "absl/strings/numbers.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+namespace strings_internal {
>+// AlphaNumBuffer allows a way to pass a std::string to StrCat without having to do
>+// memory allocation.  It is simply a pair of a fixed-size character array, and
>+// a size.  Please don't use outside of absl, yet.
>+template <size_t max_size>
>+struct AlphaNumBuffer {
>+  std::array<char, max_size> data;
>+  size_t size;
>+};
>+
>+}  // namespace strings_internal
>+
>+// Enum that specifies the number of significant digits to return in a `Hex` or
>+// `Dec` conversion and fill character to use. A `kZeroPad2` value, for example,
>+// would produce hexadecimal strings such as "0A","0F" and a 'kSpacePad5' value
>+// would produce hexadecimal strings such as "    A","    F".
>+enum PadSpec : uint8_t {
>+  kNoPad = 1,
>+  kZeroPad2,
>+  kZeroPad3,
>+  kZeroPad4,
>+  kZeroPad5,
>+  kZeroPad6,
>+  kZeroPad7,
>+  kZeroPad8,
>+  kZeroPad9,
>+  kZeroPad10,
>+  kZeroPad11,
>+  kZeroPad12,
>+  kZeroPad13,
>+  kZeroPad14,
>+  kZeroPad15,
>+  kZeroPad16,
>+
>+  kSpacePad2 = kZeroPad2 + 64,
>+  kSpacePad3,
>+  kSpacePad4,
>+  kSpacePad5,
>+  kSpacePad6,
>+  kSpacePad7,
>+  kSpacePad8,
>+  kSpacePad9,
>+  kSpacePad10,
>+  kSpacePad11,
>+  kSpacePad12,
>+  kSpacePad13,
>+  kSpacePad14,
>+  kSpacePad15,
>+  kSpacePad16,
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Hex
>+// -----------------------------------------------------------------------------
>+//
>+// `Hex` stores a set of hexadecimal std::string conversion parameters for use
>+// within `AlphaNum` std::string conversions.
>+struct Hex {
>+  uint64_t value;
>+  uint8_t width;
>+  char fill;
>+
>+  template <typename Int>
>+  explicit Hex(
>+      Int v, PadSpec spec = absl::kNoPad,
>+      typename std::enable_if<sizeof(Int) == 1 &&
>+                              !std::is_pointer<Int>::value>::type* = nullptr)
>+      : Hex(spec, static_cast<uint8_t>(v)) {}
>+  template <typename Int>
>+  explicit Hex(
>+      Int v, PadSpec spec = absl::kNoPad,
>+      typename std::enable_if<sizeof(Int) == 2 &&
>+                              !std::is_pointer<Int>::value>::type* = nullptr)
>+      : Hex(spec, static_cast<uint16_t>(v)) {}
>+  template <typename Int>
>+  explicit Hex(
>+      Int v, PadSpec spec = absl::kNoPad,
>+      typename std::enable_if<sizeof(Int) == 4 &&
>+                              !std::is_pointer<Int>::value>::type* = nullptr)
>+      : Hex(spec, static_cast<uint32_t>(v)) {}
>+  template <typename Int>
>+  explicit Hex(
>+      Int v, PadSpec spec = absl::kNoPad,
>+      typename std::enable_if<sizeof(Int) == 8 &&
>+                              !std::is_pointer<Int>::value>::type* = nullptr)
>+      : Hex(spec, static_cast<uint64_t>(v)) {}
>+  template <typename Pointee>
>+  explicit Hex(Pointee* v, PadSpec spec = absl::kNoPad)
>+      : Hex(spec, reinterpret_cast<uintptr_t>(v)) {}
>+
>+ private:
>+  Hex(PadSpec spec, uint64_t v)
>+      : value(v),
>+        width(spec == absl::kNoPad
>+                  ? 1
>+                  : spec >= absl::kSpacePad2 ? spec - absl::kSpacePad2 + 2
>+                                             : spec - absl::kZeroPad2 + 2),
>+        fill(spec >= absl::kSpacePad2 ? ' ' : '0') {}
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Dec
>+// -----------------------------------------------------------------------------
>+//
>+// `Dec` stores a set of decimal std::string conversion parameters for use
>+// within `AlphaNum` std::string conversions.  Dec is slower than the default
>+// integer conversion, so use it only if you need padding.
>+struct Dec {
>+  uint64_t value;
>+  uint8_t width;
>+  char fill;
>+  bool neg;
>+
>+  template <typename Int>
>+  explicit Dec(Int v, PadSpec spec = absl::kNoPad,
>+               typename std::enable_if<(sizeof(Int) <= 8)>::type* = nullptr)
>+      : value(v >= 0 ? static_cast<uint64_t>(v)
>+                     : uint64_t{0} - static_cast<uint64_t>(v)),
>+        width(spec == absl::kNoPad
>+                  ? 1
>+                  : spec >= absl::kSpacePad2 ? spec - absl::kSpacePad2 + 2
>+                                             : spec - absl::kZeroPad2 + 2),
>+        fill(spec >= absl::kSpacePad2 ? ' ' : '0'),
>+        neg(v < 0) {}
>+};
>+
>+// -----------------------------------------------------------------------------
>+// AlphaNum
>+// -----------------------------------------------------------------------------
>+//
>+// The `AlphaNum` class acts as the main parameter type for `StrCat()` and
>+// `StrAppend()`, providing efficient conversion of numeric, boolean, and
>+// hexadecimal values (through the `Hex` type) into strings.
>+
>+class AlphaNum {
>+ public:
>+  // No bool ctor -- bools convert to an integral type.
>+  // A bool ctor would also convert incoming pointers (bletch).
>+
>+  AlphaNum(int x)  // NOLINT(runtime/explicit)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+  AlphaNum(unsigned int x)  // NOLINT(runtime/explicit)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+  AlphaNum(long x)  // NOLINT(*)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+  AlphaNum(unsigned long x)  // NOLINT(*)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+  AlphaNum(long long x)  // NOLINT(*)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+  AlphaNum(unsigned long long x)  // NOLINT(*)
>+      : piece_(digits_,
>+               numbers_internal::FastIntToBuffer(x, digits_) - &digits_[0]) {}
>+
>+  AlphaNum(float f)  // NOLINT(runtime/explicit)
>+      : piece_(digits_, numbers_internal::SixDigitsToBuffer(f, digits_)) {}
>+  AlphaNum(double f)  // NOLINT(runtime/explicit)
>+      : piece_(digits_, numbers_internal::SixDigitsToBuffer(f, digits_)) {}
>+
>+  AlphaNum(Hex hex);  // NOLINT(runtime/explicit)
>+  AlphaNum(Dec dec);  // NOLINT(runtime/explicit)
>+
>+  template <size_t size>
>+  AlphaNum(  // NOLINT(runtime/explicit)
>+      const strings_internal::AlphaNumBuffer<size>& buf)
>+      : piece_(&buf.data[0], buf.size) {}
>+
>+  AlphaNum(const char* c_str) : piece_(c_str) {}  // NOLINT(runtime/explicit)
>+  AlphaNum(absl::string_view pc) : piece_(pc) {}  // NOLINT(runtime/explicit)
>+  template <typename Allocator>
>+  AlphaNum(  // NOLINT(runtime/explicit)
>+      const std::basic_string<char, std::char_traits<char>, Allocator>& str)
>+      : piece_(str) {}
>+
>+  // Use std::string literals ":" instead of character literals ':'.
>+  AlphaNum(char c) = delete;  // NOLINT(runtime/explicit)
>+
>+  AlphaNum(const AlphaNum&) = delete;
>+  AlphaNum& operator=(const AlphaNum&) = delete;
>+
>+  absl::string_view::size_type size() const { return piece_.size(); }
>+  const char* data() const { return piece_.data(); }
>+  absl::string_view Piece() const { return piece_; }
>+
>+  // Normal enums are already handled by the integer formatters.
>+  // This overload matches only scoped enums.
>+  template <typename T,
>+            typename = typename std::enable_if<
>+                std::is_enum<T>{} && !std::is_convertible<T, int>{}>::type>
>+  AlphaNum(T e)  // NOLINT(runtime/explicit)
>+      : AlphaNum(static_cast<typename std::underlying_type<T>::type>(e)) {}
>+
>+ private:
>+  absl::string_view piece_;
>+  char digits_[numbers_internal::kFastToBufferSize];
>+};
>+
>+// -----------------------------------------------------------------------------
>+// StrCat()
>+// -----------------------------------------------------------------------------
>+//
>+// Merges given strings or numbers, using no delimiter(s).
>+//
>+// `StrCat()` is designed to be the fastest possible way to construct a std::string
>+// out of a mix of raw C strings, string_views, strings, bool values,
>+// and numeric values.
>+//
>+// Don't use `StrCat()` for user-visible strings. The localization process
>+// works poorly on strings built up out of fragments.
>+//
>+// For clarity and performance, don't use `StrCat()` when appending to a
>+// std::string. Use `StrAppend()` instead. In particular, avoid using any of these
>+// (anti-)patterns:
>+//
>+//   str.append(StrCat(...))
>+//   str += StrCat(...)
>+//   str = StrCat(str, ...)
>+//
>+// The last case is the worst, with a potential to change a loop
>+// from a linear time operation with O(1) dynamic allocations into a
>+// quadratic time operation with O(n) dynamic allocations.
>+//
>+// See `StrAppend()` below for more information.
>+
>+namespace strings_internal {
>+
>+// Do not call directly - this is not part of the public API.
>+std::string CatPieces(std::initializer_list<absl::string_view> pieces);
>+void AppendPieces(std::string* dest,
>+                  std::initializer_list<absl::string_view> pieces);
>+
>+}  // namespace strings_internal
>+
>+ABSL_MUST_USE_RESULT inline std::string StrCat() { return std::string(); }
>+
>+ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a) {
>+  return std::string(a.data(), a.size());
>+}
>+
>+ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b);
>+ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
>+                                   const AlphaNum& c);
>+ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
>+                                   const AlphaNum& c, const AlphaNum& d);
>+
>+// Support 5 or more arguments
>+template <typename... AV>
>+ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a, const AlphaNum& b,
>+                                          const AlphaNum& c, const AlphaNum& d,
>+                                          const AlphaNum& e,
>+                                          const AV&... args) {
>+  return strings_internal::CatPieces(
>+      {a.Piece(), b.Piece(), c.Piece(), d.Piece(), e.Piece(),
>+       static_cast<const AlphaNum&>(args).Piece()...});
>+}
>+
>+// -----------------------------------------------------------------------------
>+// StrAppend()
>+// -----------------------------------------------------------------------------
>+//
>+// Appends a std::string or set of strings to an existing std::string, in a similar
>+// fashion to `StrCat()`.
>+//
>+// WARNING: `StrAppend(&str, a, b, c, ...)` requires that none of the
>+// a, b, c, parameters be a reference into str. For speed, `StrAppend()` does
>+// not try to check each of its input arguments to be sure that they are not
>+// a subset of the std::string being appended to. That is, while this will work:
>+//
>+//   std::string s = "foo";
>+//   s += s;
>+//
>+// This output is undefined:
>+//
>+//   std::string s = "foo";
>+//   StrAppend(&s, s);
>+//
>+// This output is undefined as well, since `absl::string_view` does not own its
>+// data:
>+//
>+//   std::string s = "foobar";
>+//   absl::string_view p = s;
>+//   StrAppend(&s, p);
>+
>+inline void StrAppend(std::string*) {}
>+void StrAppend(std::string* dest, const AlphaNum& a);
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b);
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
>+               const AlphaNum& c);
>+void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
>+               const AlphaNum& c, const AlphaNum& d);
>+
>+// Support 5 or more arguments
>+template <typename... AV>
>+inline void StrAppend(std::string* dest, const AlphaNum& a, const AlphaNum& b,
>+                      const AlphaNum& c, const AlphaNum& d, const AlphaNum& e,
>+                      const AV&... args) {
>+  strings_internal::AppendPieces(
>+      dest, {a.Piece(), b.Piece(), c.Piece(), d.Piece(), e.Piece(),
>+             static_cast<const AlphaNum&>(args).Piece()...});
>+}
>+
>+// Helper function for the future StrCat default floating-point format, %.6g
>+// This is fast.
>+inline strings_internal::AlphaNumBuffer<
>+    numbers_internal::kSixDigitsToBufferSize>
>+SixDigits(double d) {
>+  strings_internal::AlphaNumBuffer<numbers_internal::kSixDigitsToBufferSize>
>+      result;
>+  result.size = numbers_internal::SixDigitsToBuffer(d, &result.data[0]);
>+  return result;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STR_CAT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b6df9e309c4f8372368f00f1e4e3d59a7a9d3e9d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_benchmark.cc
>@@ -0,0 +1,140 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_cat.h"
>+
>+#include <cstdint>
>+#include <string>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/strings/substitute.h"
>+
>+namespace {
>+
>+const char kStringOne[] = "Once Upon A Time, ";
>+const char kStringTwo[] = "There was a std::string benchmark";
>+
>+// We want to include negative numbers in the benchmark, so this function
>+// is used to count 0, 1, -1, 2, -2, 3, -3, ...
>+inline int IncrementAlternatingSign(int i) {
>+  return i > 0 ? -i : 1 - i;
>+}
>+
>+void BM_Sum_By_StrCat(benchmark::State& state) {
>+  int i = 0;
>+  char foo[100];
>+  for (auto _ : state) {
>+    // NOLINTNEXTLINE(runtime/printf)
>+    strcpy(foo, absl::StrCat(kStringOne, i, kStringTwo, i * 65536ULL).c_str());
>+    int sum = 0;
>+    for (char* f = &foo[0]; *f != 0; ++f) {
>+      sum += *f;
>+    }
>+    benchmark::DoNotOptimize(sum);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_Sum_By_StrCat);
>+
>+void BM_StrCat_By_snprintf(benchmark::State& state) {
>+  int i = 0;
>+  char on_stack[1000];
>+  for (auto _ : state) {
>+    snprintf(on_stack, sizeof(on_stack), "%s %s:%d", kStringOne, kStringTwo, i);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_StrCat_By_snprintf);
>+
>+void BM_StrCat_By_Strings(benchmark::State& state) {
>+  int i = 0;
>+  for (auto _ : state) {
>+    std::string result =
>+        std::string(kStringOne) + " " + kStringTwo + ":" + absl::StrCat(i);
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_StrCat_By_Strings);
>+
>+void BM_StrCat_By_StringOpPlus(benchmark::State& state) {
>+  int i = 0;
>+  for (auto _ : state) {
>+    std::string result = kStringOne;
>+    result += " ";
>+    result += kStringTwo;
>+    result += ":";
>+    result += absl::StrCat(i);
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_StrCat_By_StringOpPlus);
>+
>+void BM_StrCat_By_StrCat(benchmark::State& state) {
>+  int i = 0;
>+  for (auto _ : state) {
>+    std::string result = absl::StrCat(kStringOne, " ", kStringTwo, ":", i);
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_StrCat_By_StrCat);
>+
>+void BM_HexCat_By_StrCat(benchmark::State& state) {
>+  int i = 0;
>+  for (auto _ : state) {
>+    std::string result =
>+        absl::StrCat(kStringOne, " ", absl::Hex(int64_t{i} + 0x10000000));
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_HexCat_By_StrCat);
>+
>+void BM_HexCat_By_Substitute(benchmark::State& state) {
>+  int i = 0;
>+  for (auto _ : state) {
>+    std::string result = absl::Substitute(
>+        "$0 $1", kStringOne, reinterpret_cast<void*>(int64_t{i} + 0x10000000));
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_HexCat_By_Substitute);
>+
>+void BM_FloatToString_By_StrCat(benchmark::State& state) {
>+  int i = 0;
>+  float foo = 0.0f;
>+  for (auto _ : state) {
>+    std::string result = absl::StrCat(foo += 1.001f, " != ", int64_t{i});
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_FloatToString_By_StrCat);
>+
>+void BM_DoubleToString_By_SixDigits(benchmark::State& state) {
>+  int i = 0;
>+  double foo = 0.0;
>+  for (auto _ : state) {
>+    std::string result =
>+        absl::StrCat(absl::SixDigits(foo += 1.001), " != ", int64_t{i});
>+    benchmark::DoNotOptimize(result);
>+    i = IncrementAlternatingSign(i);
>+  }
>+}
>+BENCHMARK(BM_DoubleToString_By_SixDigits);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e9d67690638271920d26234d9739053c30b27489
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_cat_test.cc
>@@ -0,0 +1,549 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit tests for all str_cat.h functions
>+
>+#include "absl/strings/str_cat.h"
>+
>+#include <cstdint>
>+#include <string>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/substitute.h"
>+
>+#ifdef __ANDROID__
>+// Android assert messages only go to system log, so death tests cannot inspect
>+// the message for matching.
>+#define ABSL_EXPECT_DEBUG_DEATH(statement, regex) \
>+  EXPECT_DEBUG_DEATH(statement, ".*")
>+#else
>+#define ABSL_EXPECT_DEBUG_DEATH EXPECT_DEBUG_DEATH
>+#endif
>+
>+namespace {
>+
>+// Test absl::StrCat of ints and longs of various sizes and signdedness.
>+TEST(StrCat, Ints) {
>+  const short s = -1;  // NOLINT(runtime/int)
>+  const uint16_t us = 2;
>+  const int i = -3;
>+  const unsigned int ui = 4;
>+  const long l = -5;                 // NOLINT(runtime/int)
>+  const unsigned long ul = 6;        // NOLINT(runtime/int)
>+  const long long ll = -7;           // NOLINT(runtime/int)
>+  const unsigned long long ull = 8;  // NOLINT(runtime/int)
>+  const ptrdiff_t ptrdiff = -9;
>+  const size_t size = 10;
>+  const intptr_t intptr = -12;
>+  const uintptr_t uintptr = 13;
>+  std::string answer;
>+  answer = absl::StrCat(s, us);
>+  EXPECT_EQ(answer, "-12");
>+  answer = absl::StrCat(i, ui);
>+  EXPECT_EQ(answer, "-34");
>+  answer = absl::StrCat(l, ul);
>+  EXPECT_EQ(answer, "-56");
>+  answer = absl::StrCat(ll, ull);
>+  EXPECT_EQ(answer, "-78");
>+  answer = absl::StrCat(ptrdiff, size);
>+  EXPECT_EQ(answer, "-910");
>+  answer = absl::StrCat(ptrdiff, intptr);
>+  EXPECT_EQ(answer, "-9-12");
>+  answer = absl::StrCat(uintptr, 0);
>+  EXPECT_EQ(answer, "130");
>+}
>+
>+TEST(StrCat, Enums) {
>+  enum SmallNumbers { One = 1, Ten = 10 } e = Ten;
>+  EXPECT_EQ("10", absl::StrCat(e));
>+  EXPECT_EQ("-5", absl::StrCat(SmallNumbers(-5)));
>+
>+  enum class Option { Boxers = 1, Briefs = -1 };
>+
>+  EXPECT_EQ("-1", absl::StrCat(Option::Briefs));
>+
>+  enum class Airplane : uint64_t {
>+    Airbus = 1,
>+    Boeing = 1000,
>+    Canary = 10000000000  // too big for "int"
>+  };
>+
>+  EXPECT_EQ("10000000000", absl::StrCat(Airplane::Canary));
>+
>+  enum class TwoGig : int32_t {
>+    TwoToTheZero = 1,
>+    TwoToTheSixteenth = 1 << 16,
>+    TwoToTheThirtyFirst = INT32_MIN
>+  };
>+  EXPECT_EQ("65536", absl::StrCat(TwoGig::TwoToTheSixteenth));
>+  EXPECT_EQ("-2147483648", absl::StrCat(TwoGig::TwoToTheThirtyFirst));
>+  EXPECT_EQ("-1", absl::StrCat(static_cast<TwoGig>(-1)));
>+
>+  enum class FourGig : uint32_t {
>+    TwoToTheZero = 1,
>+    TwoToTheSixteenth = 1 << 16,
>+    TwoToTheThirtyFirst = 1U << 31  // too big for "int"
>+  };
>+  EXPECT_EQ("65536", absl::StrCat(FourGig::TwoToTheSixteenth));
>+  EXPECT_EQ("2147483648", absl::StrCat(FourGig::TwoToTheThirtyFirst));
>+  EXPECT_EQ("4294967295", absl::StrCat(static_cast<FourGig>(-1)));
>+
>+  EXPECT_EQ("10000000000", absl::StrCat(Airplane::Canary));
>+}
>+
>+TEST(StrCat, Basics) {
>+  std::string result;
>+
>+  std::string strs[] = {
>+    "Hello",
>+    "Cruel",
>+    "World"
>+  };
>+
>+  std::string stdstrs[] = {
>+    "std::Hello",
>+    "std::Cruel",
>+    "std::World"
>+  };
>+
>+  absl::string_view pieces[] = {"Hello", "Cruel", "World"};
>+
>+  const char* c_strs[] = {
>+    "Hello",
>+    "Cruel",
>+    "World"
>+  };
>+
>+  int32_t i32s[] = {'H', 'C', 'W'};
>+  uint64_t ui64s[] = {12345678910LL, 10987654321LL};
>+
>+  EXPECT_EQ(absl::StrCat(), "");
>+
>+  result = absl::StrCat(false, true, 2, 3);
>+  EXPECT_EQ(result, "0123");
>+
>+  result = absl::StrCat(-1);
>+  EXPECT_EQ(result, "-1");
>+
>+  result = absl::StrCat(absl::SixDigits(0.5));
>+  EXPECT_EQ(result, "0.5");
>+
>+  result = absl::StrCat(strs[1], pieces[2]);
>+  EXPECT_EQ(result, "CruelWorld");
>+
>+  result = absl::StrCat(stdstrs[1], " ", stdstrs[2]);
>+  EXPECT_EQ(result, "std::Cruel std::World");
>+
>+  result = absl::StrCat(strs[0], ", ", pieces[2]);
>+  EXPECT_EQ(result, "Hello, World");
>+
>+  result = absl::StrCat(strs[0], ", ", strs[1], " ", strs[2], "!");
>+  EXPECT_EQ(result, "Hello, Cruel World!");
>+
>+  result = absl::StrCat(pieces[0], ", ", pieces[1], " ", pieces[2]);
>+  EXPECT_EQ(result, "Hello, Cruel World");
>+
>+  result = absl::StrCat(c_strs[0], ", ", c_strs[1], " ", c_strs[2]);
>+  EXPECT_EQ(result, "Hello, Cruel World");
>+
>+  result = absl::StrCat("ASCII ", i32s[0], ", ", i32s[1], " ", i32s[2], "!");
>+  EXPECT_EQ(result, "ASCII 72, 67 87!");
>+
>+  result = absl::StrCat(ui64s[0], ", ", ui64s[1], "!");
>+  EXPECT_EQ(result, "12345678910, 10987654321!");
>+
>+  std::string one = "1";  // Actually, it's the size of this std::string that we want; a
>+                     // 64-bit build distinguishes between size_t and uint64_t,
>+                     // even though they're both unsigned 64-bit values.
>+  result = absl::StrCat("And a ", one.size(), " and a ",
>+                        &result[2] - &result[0], " and a ", one, " 2 3 4", "!");
>+  EXPECT_EQ(result, "And a 1 and a 2 and a 1 2 3 4!");
>+
>+  // result = absl::StrCat("Single chars won't compile", '!');
>+  // result = absl::StrCat("Neither will nullptrs", nullptr);
>+  result =
>+      absl::StrCat("To output a char by ASCII/numeric value, use +: ", '!' + 0);
>+  EXPECT_EQ(result, "To output a char by ASCII/numeric value, use +: 33");
>+
>+  float f = 100000.5;
>+  result = absl::StrCat("A hundred K and a half is ", absl::SixDigits(f));
>+  EXPECT_EQ(result, "A hundred K and a half is 100000");
>+
>+  f = 100001.5;
>+  result =
>+      absl::StrCat("A hundred K and one and a half is ", absl::SixDigits(f));
>+  EXPECT_EQ(result, "A hundred K and one and a half is 100002");
>+
>+  double d = 100000.5;
>+  d *= d;
>+  result =
>+      absl::StrCat("A hundred K and a half squared is ", absl::SixDigits(d));
>+  EXPECT_EQ(result, "A hundred K and a half squared is 1.00001e+10");
>+
>+  result = absl::StrCat(1, 2, 333, 4444, 55555, 666666, 7777777, 88888888,
>+                        999999999);
>+  EXPECT_EQ(result, "12333444455555666666777777788888888999999999");
>+}
>+
>+// A minimal allocator that uses malloc().
>+template <typename T>
>+struct Mallocator {
>+  typedef T value_type;
>+  typedef size_t size_type;
>+  typedef ptrdiff_t difference_type;
>+  typedef T* pointer;
>+  typedef const T* const_pointer;
>+  typedef T& reference;
>+  typedef const T& const_reference;
>+
>+  size_type max_size() const {
>+    return size_t(std::numeric_limits<size_type>::max()) / sizeof(value_type);
>+  }
>+  template <typename U>
>+  struct rebind {
>+    typedef Mallocator<U> other;
>+  };
>+  Mallocator() = default;
>+  template <class U>
>+  Mallocator(const Mallocator<U>&) {}  // NOLINT(runtime/explicit)
>+
>+  T* allocate(size_t n) { return static_cast<T*>(std::malloc(n * sizeof(T))); }
>+  void deallocate(T* p, size_t) { std::free(p); }
>+};
>+template <typename T, typename U>
>+bool operator==(const Mallocator<T>&, const Mallocator<U>&) {
>+  return true;
>+}
>+template <typename T, typename U>
>+bool operator!=(const Mallocator<T>&, const Mallocator<U>&) {
>+  return false;
>+}
>+
>+TEST(StrCat, CustomAllocator) {
>+  using mstring =
>+      std::basic_string<char, std::char_traits<char>, Mallocator<char>>;
>+  const mstring str1("PARACHUTE OFF A BLIMP INTO MOSCONE!!");
>+
>+  const mstring str2("Read this book about coffee tables");
>+
>+  std::string result = absl::StrCat(str1, str2);
>+  EXPECT_EQ(result,
>+            "PARACHUTE OFF A BLIMP INTO MOSCONE!!"
>+            "Read this book about coffee tables");
>+}
>+
>+TEST(StrCat, MaxArgs) {
>+  std::string result;
>+  // Test 10 up to 26 arguments, the old maximum
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a");
>+  EXPECT_EQ(result, "123456789a");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b");
>+  EXPECT_EQ(result, "123456789ab");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c");
>+  EXPECT_EQ(result, "123456789abc");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d");
>+  EXPECT_EQ(result, "123456789abcd");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e");
>+  EXPECT_EQ(result, "123456789abcde");
>+  result =
>+      absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f");
>+  EXPECT_EQ(result, "123456789abcdef");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g");
>+  EXPECT_EQ(result, "123456789abcdefg");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h");
>+  EXPECT_EQ(result, "123456789abcdefgh");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i");
>+  EXPECT_EQ(result, "123456789abcdefghi");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j");
>+  EXPECT_EQ(result, "123456789abcdefghij");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k");
>+  EXPECT_EQ(result, "123456789abcdefghijk");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l");
>+  EXPECT_EQ(result, "123456789abcdefghijkl");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l", "m");
>+  EXPECT_EQ(result, "123456789abcdefghijklm");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l", "m", "n");
>+  EXPECT_EQ(result, "123456789abcdefghijklmn");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l", "m", "n", "o");
>+  EXPECT_EQ(result, "123456789abcdefghijklmno");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l", "m", "n", "o", "p");
>+  EXPECT_EQ(result, "123456789abcdefghijklmnop");
>+  result = absl::StrCat(1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f",
>+                        "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q");
>+  EXPECT_EQ(result, "123456789abcdefghijklmnopq");
>+  // No limit thanks to C++11's variadic templates
>+  result = absl::StrCat(
>+      1, 2, 3, 4, 5, 6, 7, 8, 9, 10, "a", "b", "c", "d", "e", "f", "g", "h",
>+      "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w",
>+      "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L",
>+      "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z");
>+  EXPECT_EQ(result,
>+            "12345678910abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
>+}
>+
>+TEST(StrAppend, Basics) {
>+  std::string result = "existing text";
>+
>+  std::string strs[] = {
>+    "Hello",
>+    "Cruel",
>+    "World"
>+  };
>+
>+  std::string stdstrs[] = {
>+    "std::Hello",
>+    "std::Cruel",
>+    "std::World"
>+  };
>+
>+  absl::string_view pieces[] = {"Hello", "Cruel", "World"};
>+
>+  const char* c_strs[] = {
>+    "Hello",
>+    "Cruel",
>+    "World"
>+  };
>+
>+  int32_t i32s[] = {'H', 'C', 'W'};
>+  uint64_t ui64s[] = {12345678910LL, 10987654321LL};
>+
>+  std::string::size_type old_size = result.size();
>+  absl::StrAppend(&result);
>+  EXPECT_EQ(result.size(), old_size);
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, strs[0]);
>+  EXPECT_EQ(result.substr(old_size), "Hello");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, strs[1], pieces[2]);
>+  EXPECT_EQ(result.substr(old_size), "CruelWorld");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, stdstrs[0], ", ", pieces[2]);
>+  EXPECT_EQ(result.substr(old_size), "std::Hello, World");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, strs[0], ", ", stdstrs[1], " ", strs[2], "!");
>+  EXPECT_EQ(result.substr(old_size), "Hello, std::Cruel World!");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, pieces[0], ", ", pieces[1], " ", pieces[2]);
>+  EXPECT_EQ(result.substr(old_size), "Hello, Cruel World");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, c_strs[0], ", ", c_strs[1], " ", c_strs[2]);
>+  EXPECT_EQ(result.substr(old_size), "Hello, Cruel World");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, "ASCII ", i32s[0], ", ", i32s[1], " ", i32s[2], "!");
>+  EXPECT_EQ(result.substr(old_size), "ASCII 72, 67 87!");
>+
>+  old_size = result.size();
>+  absl::StrAppend(&result, ui64s[0], ", ", ui64s[1], "!");
>+  EXPECT_EQ(result.substr(old_size), "12345678910, 10987654321!");
>+
>+  std::string one = "1";  // Actually, it's the size of this std::string that we want; a
>+                     // 64-bit build distinguishes between size_t and uint64_t,
>+                     // even though they're both unsigned 64-bit values.
>+  old_size = result.size();
>+  absl::StrAppend(&result, "And a ", one.size(), " and a ",
>+                  &result[2] - &result[0], " and a ", one, " 2 3 4", "!");
>+  EXPECT_EQ(result.substr(old_size), "And a 1 and a 2 and a 1 2 3 4!");
>+
>+  // result = absl::StrCat("Single chars won't compile", '!');
>+  // result = absl::StrCat("Neither will nullptrs", nullptr);
>+  old_size = result.size();
>+  absl::StrAppend(&result,
>+                  "To output a char by ASCII/numeric value, use +: ", '!' + 0);
>+  EXPECT_EQ(result.substr(old_size),
>+            "To output a char by ASCII/numeric value, use +: 33");
>+
>+  // Test 9 arguments, the old maximum
>+  old_size = result.size();
>+  absl::StrAppend(&result, 1, 22, 333, 4444, 55555, 666666, 7777777, 88888888,
>+                  9);
>+  EXPECT_EQ(result.substr(old_size), "1223334444555556666667777777888888889");
>+
>+  // No limit thanks to C++11's variadic templates
>+  old_size = result.size();
>+  absl::StrAppend(
>+      &result, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,                           //
>+      "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",  //
>+      "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",  //
>+      "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",  //
>+      "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",  //
>+      "No limit thanks to C++11's variadic templates");
>+  EXPECT_EQ(result.substr(old_size),
>+            "12345678910abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
>+            "No limit thanks to C++11's variadic templates");
>+}
>+
>+#ifdef GTEST_HAS_DEATH_TEST
>+TEST(StrAppend, Death) {
>+  std::string s = "self";
>+  // on linux it's "assertion", on mac it's "Assertion",
>+  // on chromiumos it's "Assertion ... failed".
>+  ABSL_EXPECT_DEBUG_DEATH(absl::StrAppend(&s, s.c_str() + 1),
>+                          "ssertion.*failed");
>+  ABSL_EXPECT_DEBUG_DEATH(absl::StrAppend(&s, s), "ssertion.*failed");
>+}
>+#endif  // GTEST_HAS_DEATH_TEST
>+
>+TEST(StrAppend, EmptyString) {
>+  std::string s = "";
>+  absl::StrAppend(&s, s);
>+  EXPECT_EQ(s, "");
>+}
>+
>+template <typename IntType>
>+void CheckHex(IntType v, const char* nopad_format, const char* zeropad_format,
>+              const char* spacepad_format) {
>+  char expected[256];
>+
>+  std::string actual = absl::StrCat(absl::Hex(v, absl::kNoPad));
>+  snprintf(expected, sizeof(expected), nopad_format, v);
>+  EXPECT_EQ(expected, actual) << " decimal value " << v;
>+
>+  for (int spec = absl::kZeroPad2; spec <= absl::kZeroPad16; ++spec) {
>+    std::string actual =
>+        absl::StrCat(absl::Hex(v, static_cast<absl::PadSpec>(spec)));
>+    snprintf(expected, sizeof(expected), zeropad_format,
>+             spec - absl::kZeroPad2 + 2, v);
>+    EXPECT_EQ(expected, actual) << " decimal value " << v;
>+  }
>+
>+  for (int spec = absl::kSpacePad2; spec <= absl::kSpacePad16; ++spec) {
>+    std::string actual =
>+        absl::StrCat(absl::Hex(v, static_cast<absl::PadSpec>(spec)));
>+    snprintf(expected, sizeof(expected), spacepad_format,
>+             spec - absl::kSpacePad2 + 2, v);
>+    EXPECT_EQ(expected, actual) << " decimal value " << v;
>+  }
>+}
>+
>+template <typename IntType>
>+void CheckDec(IntType v, const char* nopad_format, const char* zeropad_format,
>+              const char* spacepad_format) {
>+  char expected[256];
>+
>+  std::string actual = absl::StrCat(absl::Dec(v, absl::kNoPad));
>+  snprintf(expected, sizeof(expected), nopad_format, v);
>+  EXPECT_EQ(expected, actual) << " decimal value " << v;
>+
>+  for (int spec = absl::kZeroPad2; spec <= absl::kZeroPad16; ++spec) {
>+    std::string actual =
>+        absl::StrCat(absl::Dec(v, static_cast<absl::PadSpec>(spec)));
>+    snprintf(expected, sizeof(expected), zeropad_format,
>+             spec - absl::kZeroPad2 + 2, v);
>+    EXPECT_EQ(expected, actual)
>+        << " decimal value " << v << " format '" << zeropad_format
>+        << "' digits " << (spec - absl::kZeroPad2 + 2);
>+  }
>+
>+  for (int spec = absl::kSpacePad2; spec <= absl::kSpacePad16; ++spec) {
>+    std::string actual =
>+        absl::StrCat(absl::Dec(v, static_cast<absl::PadSpec>(spec)));
>+    snprintf(expected, sizeof(expected), spacepad_format,
>+             spec - absl::kSpacePad2 + 2, v);
>+    EXPECT_EQ(expected, actual)
>+        << " decimal value " << v << " format '" << spacepad_format
>+        << "' digits " << (spec - absl::kSpacePad2 + 2);
>+  }
>+}
>+
>+void CheckHexDec64(uint64_t v) {
>+  unsigned long long ullv = v;  // NOLINT(runtime/int)
>+
>+  CheckHex(ullv, "%llx", "%0*llx", "%*llx");
>+  CheckDec(ullv, "%llu", "%0*llu", "%*llu");
>+
>+  long long llv = static_cast<long long>(ullv);  // NOLINT(runtime/int)
>+  CheckDec(llv, "%lld", "%0*lld", "%*lld");
>+
>+  if (sizeof(v) == sizeof(&v)) {
>+    auto uintptr = static_cast<uintptr_t>(v);
>+    void* ptr = reinterpret_cast<void*>(uintptr);
>+    CheckHex(ptr, "%llx", "%0*llx", "%*llx");
>+  }
>+}
>+
>+void CheckHexDec32(uint32_t uv) {
>+  CheckHex(uv, "%x", "%0*x", "%*x");
>+  CheckDec(uv, "%u", "%0*u", "%*u");
>+  int32_t v = static_cast<int32_t>(uv);
>+  CheckDec(v, "%d", "%0*d", "%*d");
>+
>+  if (sizeof(v) == sizeof(&v)) {
>+    auto uintptr = static_cast<uintptr_t>(v);
>+    void* ptr = reinterpret_cast<void*>(uintptr);
>+    CheckHex(ptr, "%x", "%0*x", "%*x");
>+  }
>+}
>+
>+void CheckAll(uint64_t v) {
>+  CheckHexDec64(v);
>+  CheckHexDec32(static_cast<uint32_t>(v));
>+}
>+
>+void TestFastPrints() {
>+  // Test all small ints; there aren't many and they're common.
>+  for (int i = 0; i < 10000; i++) {
>+    CheckAll(i);
>+  }
>+
>+  CheckAll(std::numeric_limits<uint64_t>::max());
>+  CheckAll(std::numeric_limits<uint64_t>::max() - 1);
>+  CheckAll(std::numeric_limits<int64_t>::min());
>+  CheckAll(std::numeric_limits<int64_t>::min() + 1);
>+  CheckAll(std::numeric_limits<uint32_t>::max());
>+  CheckAll(std::numeric_limits<uint32_t>::max() - 1);
>+  CheckAll(std::numeric_limits<int32_t>::min());
>+  CheckAll(std::numeric_limits<int32_t>::min() + 1);
>+  CheckAll(999999999);              // fits in 32 bits
>+  CheckAll(1000000000);             // fits in 32 bits
>+  CheckAll(9999999999);             // doesn't fit in 32 bits
>+  CheckAll(10000000000);            // doesn't fit in 32 bits
>+  CheckAll(999999999999999999);     // fits in signed 64-bit
>+  CheckAll(9999999999999999999u);   // fits in unsigned 64-bit, but not signed.
>+  CheckAll(1000000000000000000);    // fits in signed 64-bit
>+  CheckAll(10000000000000000000u);  // fits in unsigned 64-bit, but not signed.
>+
>+  CheckAll(999999999876543210);    // check all decimal digits, signed
>+  CheckAll(9999999999876543210u);  // check all decimal digits, unsigned.
>+  CheckAll(0x123456789abcdef0);    // check all hex digits
>+  CheckAll(0x12345678);
>+
>+  int8_t minus_one_8bit = -1;
>+  EXPECT_EQ("ff", absl::StrCat(absl::Hex(minus_one_8bit)));
>+
>+  int16_t minus_one_16bit = -1;
>+  EXPECT_EQ("ffff", absl::StrCat(absl::Hex(minus_one_16bit)));
>+}
>+
>+TEST(Numbers, TestFunctionsMovedOverFromNumbersMain) {
>+  TestFastPrints();
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..70a811b75e2ff8863c9e3687c6c282f90c2317f9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format.h
>@@ -0,0 +1,512 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: str_format.h
>+// -----------------------------------------------------------------------------
>+//
>+// The `str_format` library is a typesafe replacement for the family of
>+// `printf()` std::string formatting routines within the `<cstdio>` standard library
>+// header. Like the `printf` family, the `str_format` uses a "format string" to
>+// perform argument substitutions based on types.
>+//
>+// Example:
>+//
>+//   std::string s = absl::StrFormat("%s %s You have $%d!", "Hello", name, dollars);
>+//
>+// The library consists of the following basic utilities:
>+//
>+//   * `absl::StrFormat()`, a type-safe replacement for `std::sprintf()`, to
>+//     write a format std::string to a `string` value.
>+//   * `absl::StrAppendFormat()` to append a format std::string to a `string`
>+//   * `absl::StreamFormat()` to more efficiently write a format std::string to a
>+//     stream, such as`std::cout`.
>+//   * `absl::PrintF()`, `absl::FPrintF()` and `absl::SNPrintF()` as
>+//     replacements for `std::printf()`, `std::fprintf()` and `std::snprintf()`.
>+//
>+//     Note: a version of `std::sprintf()` is not supported as it is
>+//     generally unsafe due to buffer overflows.
>+//
>+// Additionally, you can provide a format std::string (and its associated arguments)
>+// using one of the following abstractions:
>+//
>+//   * A `FormatSpec` class template fully encapsulates a format std::string and its
>+//     type arguments and is usually provided to `str_format` functions as a
>+//     variadic argument of type `FormatSpec<Arg...>`. The `FormatSpec<Args...>`
>+//     template is evaluated at compile-time, providing type safety.
>+//   * A `ParsedFormat` instance, which encapsulates a specific, pre-compiled
>+//     format std::string for a specific set of type(s), and which can be passed
>+//     between API boundaries. (The `FormatSpec` type should not be used
>+//     directly.)
>+//
>+// The `str_format` library provides the ability to output its format strings to
>+// arbitrary sink types:
>+//
>+//   * A generic `Format()` function to write outputs to arbitrary sink types,
>+//     which must implement a `RawSinkFormat` interface. (See
>+//     `str_format_sink.h` for more information.)
>+//
>+//   * A `FormatUntyped()` function that is similar to `Format()` except it is
>+//     loosely typed. `FormatUntyped()` is not a template and does not perform
>+//     any compile-time checking of the format std::string; instead, it returns a
>+//     boolean from a runtime check.
>+//
>+// In addition, the `str_format` library provides extension points for
>+// augmenting formatting to new types. These extensions are fully documented
>+// within the `str_format_extension.h` header file.
>+#ifndef ABSL_STRINGS_STR_FORMAT_H_
>+#define ABSL_STRINGS_STR_FORMAT_H_
>+
>+#include <cstdio>
>+#include <string>
>+
>+#include "absl/strings/internal/str_format/arg.h"  // IWYU pragma: export
>+#include "absl/strings/internal/str_format/bind.h"  // IWYU pragma: export
>+#include "absl/strings/internal/str_format/checker.h"  // IWYU pragma: export
>+#include "absl/strings/internal/str_format/extension.h"  // IWYU pragma: export
>+#include "absl/strings/internal/str_format/parser.h"  // IWYU pragma: export
>+
>+namespace absl {
>+
>+// UntypedFormatSpec
>+//
>+// A type-erased class that can be used directly within untyped API entry
>+// points. An `UntypedFormatSpec` is specifically used as an argument to
>+// `FormatUntyped()`.
>+//
>+// Example:
>+//
>+//   absl::UntypedFormatSpec format("%d");
>+//   std::string out;
>+//   CHECK(absl::FormatUntyped(&out, format, {absl::FormatArg(1)}));
>+class UntypedFormatSpec {
>+ public:
>+  UntypedFormatSpec() = delete;
>+  UntypedFormatSpec(const UntypedFormatSpec&) = delete;
>+  UntypedFormatSpec& operator=(const UntypedFormatSpec&) = delete;
>+
>+  explicit UntypedFormatSpec(string_view s) : spec_(s) {}
>+
>+ protected:
>+  explicit UntypedFormatSpec(const str_format_internal::ParsedFormatBase* pc)
>+      : spec_(pc) {}
>+
>+ private:
>+  friend str_format_internal::UntypedFormatSpecImpl;
>+  str_format_internal::UntypedFormatSpecImpl spec_;
>+};
>+
>+// FormatStreamed()
>+//
>+// Takes a streamable argument and returns an object that can print it
>+// with '%s'. Allows printing of types that have an `operator<<` but no
>+// intrinsic type support within `StrFormat()` itself.
>+//
>+// Example:
>+//
>+//   absl::StrFormat("%s", absl::FormatStreamed(obj));
>+template <typename T>
>+str_format_internal::StreamedWrapper<T> FormatStreamed(const T& v) {
>+  return str_format_internal::StreamedWrapper<T>(v);
>+}
>+
>+// FormatCountCapture
>+//
>+// This class provides a way to safely wrap `StrFormat()` captures of `%n`
>+// conversions, which denote the number of characters written by a formatting
>+// operation to this point, into an integer value.
>+//
>+// This wrapper is designed to allow safe usage of `%n` within `StrFormat(); in
>+// the `printf()` family of functions, `%n` is not safe to use, as the `int *`
>+// buffer can be used to capture arbitrary data.
>+//
>+// Example:
>+//
>+//   int n = 0;
>+//   std::string s = absl::StrFormat("%s%d%n", "hello", 123,
>+//                   absl::FormatCountCapture(&n));
>+//   EXPECT_EQ(8, n);
>+class FormatCountCapture {
>+ public:
>+  explicit FormatCountCapture(int* p) : p_(p) {}
>+
>+ private:
>+  // FormatCountCaptureHelper is used to define FormatConvertImpl() for this
>+  // class.
>+  friend struct str_format_internal::FormatCountCaptureHelper;
>+  // Unused() is here because of the false positive from -Wunused-private-field
>+  // p_ is used in the templated function of the friend FormatCountCaptureHelper
>+  // class.
>+  int* Unused() { return p_; }
>+  int* p_;
>+};
>+
>+// FormatSpec
>+//
>+// The `FormatSpec` type defines the makeup of a format std::string within the
>+// `str_format` library. You should not need to use or manipulate this type
>+// directly. A `FormatSpec` is a variadic class template that is evaluated at
>+// compile-time, according to the format std::string and arguments that are passed
>+// to it.
>+//
>+// For a `FormatSpec` to be valid at compile-time, it must be provided as
>+// either:
>+//
>+// * A `constexpr` literal or `absl::string_view`, which is how it most often
>+//   used.
>+// * A `ParsedFormat` instantiation, which ensures the format std::string is
>+//   valid before use. (See below.)
>+//
>+// Example:
>+//
>+//   // Provided as a std::string literal.
>+//   absl::StrFormat("Welcome to %s, Number %d!", "The Village", 6);
>+//
>+//   // Provided as a constexpr absl::string_view.
>+//   constexpr absl::string_view formatString = "Welcome to %s, Number %d!";
>+//   absl::StrFormat(formatString, "The Village", 6);
>+//
>+//   // Provided as a pre-compiled ParsedFormat object.
>+//   // Note that this example is useful only for illustration purposes.
>+//   absl::ParsedFormat<'s', 'd'> formatString("Welcome to %s, Number %d!");
>+//   absl::StrFormat(formatString, "TheVillage", 6);
>+//
>+// A format std::string generally follows the POSIX syntax as used within the POSIX
>+// `printf` specification.
>+//
>+// (See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/printf.html.)
>+//
>+// In specific, the `FormatSpec` supports the following type specifiers:
>+//   * `c` for characters
>+//   * `s` for strings
>+//   * `d` or `i` for integers
>+//   * `o` for unsigned integer conversions into octal
>+//   * `x` or `X` for unsigned integer conversions into hex
>+//   * `u` for unsigned integers
>+//   * `f` or `F` for floating point values into decimal notation
>+//   * `e` or `E` for floating point values into exponential notation
>+//   * `a` or `A` for floating point values into hex exponential notation
>+//   * `g` or `G` for floating point values into decimal or exponential
>+//     notation based on their precision
>+//   * `p` for pointer address values
>+//   * `n` for the special case of writing out the number of characters
>+//     written to this point. The resulting value must be captured within an
>+//     `absl::FormatCountCapture` type.
>+//
>+// NOTE: `o`, `x\X` and `u` will convert signed values to their unsigned
>+// counterpart before formatting.
>+//
>+// Examples:
>+//     "%c", 'a'                -> "a"
>+//     "%c", 32                 -> " "
>+//     "%s", "C"                -> "C"
>+//     "%s", std::string("C++") -> "C++"
>+//     "%d", -10                -> "-10"
>+//     "%o", 10                 -> "12"
>+//     "%x", 16                 -> "10"
>+//     "%f", 123456789          -> "123456789.000000"
>+//     "%e", .01                -> "1.00000e-2"
>+//     "%a", -3.0               -> "-0x1.8p+1"
>+//     "%g", .01                -> "1e-2"
>+//     "%p", *int               -> "0x7ffdeb6ad2a4"
>+//
>+//     int n = 0;
>+//     std::string s = absl::StrFormat(
>+//         "%s%d%n", "hello", 123, absl::FormatCountCapture(&n));
>+//     EXPECT_EQ(8, n);
>+//
>+// The `FormatSpec` intrinsically supports all of these fundamental C++ types:
>+//
>+// *   Characters: `char`, `signed char`, `unsigned char`
>+// *   Integers: `int`, `short`, `unsigned short`, `unsigned`, `long`,
>+//         `unsigned long`, `long long`, `unsigned long long`
>+// *   Floating-point: `float`, `double`, `long double`
>+//
>+// However, in the `str_format` library, a format conversion specifies a broader
>+// C++ conceptual category instead of an exact type. For example, `%s` binds to
>+// any std::string-like argument, so `std::string`, `absl::string_view`, and
>+// `const char*` are all accepted. Likewise, `%d` accepts any integer-like
>+// argument, etc.
>+
>+template <typename... Args>
>+using FormatSpec =
>+    typename str_format_internal::FormatSpecDeductionBarrier<Args...>::type;
>+
>+// ParsedFormat
>+//
>+// A `ParsedFormat` is a class template representing a preparsed `FormatSpec`,
>+// with template arguments specifying the conversion characters used within the
>+// format std::string. Such characters must be valid format type specifiers, and
>+// these type specifiers are checked at compile-time.
>+//
>+// Instances of `ParsedFormat` can be created, copied, and reused to speed up
>+// formatting loops. A `ParsedFormat` may either be constructed statically, or
>+// dynamically through its `New()` factory function, which only constructs a
>+// runtime object if the format is valid at that time.
>+//
>+// Example:
>+//
>+//   // Verified at compile time.
>+//   absl::ParsedFormat<'s', 'd'> formatString("Welcome to %s, Number %d!");
>+//   absl::StrFormat(formatString, "TheVillage", 6);
>+//
>+//   // Verified at runtime.
>+//   auto format_runtime = absl::ParsedFormat<'d'>::New(format_string);
>+//   if (format_runtime) {
>+//     value = absl::StrFormat(*format_runtime, i);
>+//   } else {
>+//     ... error case ...
>+//   }
>+template <char... Conv>
>+using ParsedFormat = str_format_internal::ExtendedParsedFormat<
>+    str_format_internal::ConversionCharToConv(Conv)...>;
>+
>+// StrFormat()
>+//
>+// Returns a `string` given a `printf()`-style format std::string and zero or more
>+// additional arguments. Use it as you would `sprintf()`. `StrFormat()` is the
>+// primary formatting function within the `str_format` library, and should be
>+// used in most cases where you need type-safe conversion of types into
>+// formatted strings.
>+//
>+// The format std::string generally consists of ordinary character data along with
>+// one or more format conversion specifiers (denoted by the `%` character).
>+// Ordinary character data is returned unchanged into the result std::string, while
>+// each conversion specification performs a type substitution from
>+// `StrFormat()`'s other arguments. See the comments for `FormatSpec` for full
>+// information on the makeup of this format std::string.
>+//
>+// Example:
>+//
>+//   std::string s = absl::StrFormat(
>+//       "Welcome to %s, Number %d!", "The Village", 6);
>+//   EXPECT_EQ("Welcome to The Village, Number 6!", s);
>+//
>+// Returns an empty std::string in case of error.
>+template <typename... Args>
>+ABSL_MUST_USE_RESULT std::string StrFormat(const FormatSpec<Args...>& format,
>+                                      const Args&... args) {
>+  return str_format_internal::FormatPack(
>+      str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// StrAppendFormat()
>+//
>+// Appends to a `dst` std::string given a format std::string, and zero or more additional
>+// arguments, returning `*dst` as a convenience for chaining purposes. Appends
>+// nothing in case of error (but possibly alters its capacity).
>+//
>+// Example:
>+//
>+//   std::string orig("For example PI is approximately ");
>+//   std::cout << StrAppendFormat(&orig, "%12.6f", 3.14);
>+template <typename... Args>
>+std::string& StrAppendFormat(std::string* dst, const FormatSpec<Args...>& format,
>+                        const Args&... args) {
>+  return str_format_internal::AppendPack(
>+      dst, str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// StreamFormat()
>+//
>+// Writes to an output stream given a format std::string and zero or more arguments,
>+// generally in a manner that is more efficient than streaming the result of
>+// `absl:: StrFormat()`. The returned object must be streamed before the full
>+// expression ends.
>+//
>+// Example:
>+//
>+//   std::cout << StreamFormat("%12.6f", 3.14);
>+template <typename... Args>
>+ABSL_MUST_USE_RESULT str_format_internal::Streamable StreamFormat(
>+    const FormatSpec<Args...>& format, const Args&... args) {
>+  return str_format_internal::Streamable(
>+      str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// PrintF()
>+//
>+// Writes to stdout given a format std::string and zero or more arguments. This
>+// function is functionally equivalent to `std::printf()` (and type-safe);
>+// prefer `absl::PrintF()` over `std::printf()`.
>+//
>+// Example:
>+//
>+//   std::string_view s = "Ulaanbaatar";
>+//   absl::PrintF("The capital of Mongolia is %s", s);
>+//
>+//   Outputs: "The capital of Mongolia is Ulaanbaatar"
>+//
>+template <typename... Args>
>+int PrintF(const FormatSpec<Args...>& format, const Args&... args) {
>+  return str_format_internal::FprintF(
>+      stdout, str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// FPrintF()
>+//
>+// Writes to a file given a format std::string and zero or more arguments. This
>+// function is functionally equivalent to `std::fprintf()` (and type-safe);
>+// prefer `absl::FPrintF()` over `std::fprintf()`.
>+//
>+// Example:
>+//
>+//   std::string_view s = "Ulaanbaatar";
>+//   absl::FPrintF("The capital of Mongolia is %s", s);
>+//
>+//   Outputs: "The capital of Mongolia is Ulaanbaatar"
>+//
>+template <typename... Args>
>+int FPrintF(std::FILE* output, const FormatSpec<Args...>& format,
>+            const Args&... args) {
>+  return str_format_internal::FprintF(
>+      output, str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// SNPrintF()
>+//
>+// Writes to a sized buffer given a format std::string and zero or more arguments.
>+// This function is functionally equivalent to `std::snprintf()` (and
>+// type-safe); prefer `absl::SNPrintF()` over `std::snprintf()`.
>+//
>+// Example:
>+//
>+//   std::string_view s = "Ulaanbaatar";
>+//   char output[128];
>+//   absl::SNPrintF(output, sizeof(output),
>+//                  "The capital of Mongolia is %s", s);
>+//
>+//   Post-condition: output == "The capital of Mongolia is Ulaanbaatar"
>+//
>+template <typename... Args>
>+int SNPrintF(char* output, std::size_t size, const FormatSpec<Args...>& format,
>+             const Args&... args) {
>+  return str_format_internal::SnprintF(
>+      output, size, str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// -----------------------------------------------------------------------------
>+// Custom Output Formatting Functions
>+// -----------------------------------------------------------------------------
>+
>+// FormatRawSink
>+//
>+// FormatRawSink is a type erased wrapper around arbitrary sink objects
>+// specifically used as an argument to `Format()`.
>+// FormatRawSink does not own the passed sink object. The passed object must
>+// outlive the FormatRawSink.
>+class FormatRawSink {
>+ public:
>+  // Implicitly convert from any type that provides the hook function as
>+  // described above.
>+  template <typename T,
>+            typename = typename std::enable_if<std::is_constructible<
>+                str_format_internal::FormatRawSinkImpl, T*>::value>::type>
>+  FormatRawSink(T* raw)  // NOLINT
>+      : sink_(raw) {}
>+
>+ private:
>+  friend str_format_internal::FormatRawSinkImpl;
>+  str_format_internal::FormatRawSinkImpl sink_;
>+};
>+
>+// Format()
>+//
>+// Writes a formatted std::string to an arbitrary sink object (implementing the
>+// `absl::FormatRawSink` interface), using a format std::string and zero or more
>+// additional arguments.
>+//
>+// By default, `string` and `std::ostream` are supported as destination objects.
>+//
>+// `absl::Format()` is a generic version of `absl::StrFormat(), for custom
>+// sinks. The format std::string, like format strings for `StrFormat()`, is checked
>+// at compile-time.
>+//
>+// On failure, this function returns `false` and the state of the sink is
>+// unspecified.
>+template <typename... Args>
>+bool Format(FormatRawSink raw_sink, const FormatSpec<Args...>& format,
>+            const Args&... args) {
>+  return str_format_internal::FormatUntyped(
>+      str_format_internal::FormatRawSinkImpl::Extract(raw_sink),
>+      str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+      {str_format_internal::FormatArgImpl(args)...});
>+}
>+
>+// FormatArg
>+//
>+// A type-erased handle to a format argument specifically used as an argument to
>+// `FormatUntyped()`. You may construct `FormatArg` by passing
>+// reference-to-const of any printable type. `FormatArg` is both copyable and
>+// assignable. The source data must outlive the `FormatArg` instance. See
>+// example below.
>+//
>+using FormatArg = str_format_internal::FormatArgImpl;
>+
>+// FormatUntyped()
>+//
>+// Writes a formatted std::string to an arbitrary sink object (implementing the
>+// `absl::FormatRawSink` interface), using an `UntypedFormatSpec` and zero or
>+// more additional arguments.
>+//
>+// This function acts as the most generic formatting function in the
>+// `str_format` library. The caller provides a raw sink, an unchecked format
>+// std::string, and (usually) a runtime specified list of arguments; no compile-time
>+// checking of formatting is performed within this function. As a result, a
>+// caller should check the return value to verify that no error occurred.
>+// On failure, this function returns `false` and the state of the sink is
>+// unspecified.
>+//
>+// The arguments are provided in an `absl::Span<const absl::FormatArg>`.
>+// Each `absl::FormatArg` object binds to a single argument and keeps a
>+// reference to it. The values used to create the `FormatArg` objects must
>+// outlive this function call. (See `str_format_arg.h` for information on
>+// the `FormatArg` class.)_
>+//
>+// Example:
>+//
>+//   std::optional<std::string> FormatDynamic(const std::string& in_format,
>+//                                       const vector<std::string>& in_args) {
>+//     std::string out;
>+//     std::vector<absl::FormatArg> args;
>+//     for (const auto& v : in_args) {
>+//       // It is important that 'v' is a reference to the objects in in_args.
>+//       // The values we pass to FormatArg must outlive the call to
>+//       // FormatUntyped.
>+//       args.emplace_back(v);
>+//     }
>+//     absl::UntypedFormatSpec format(in_format);
>+//     if (!absl::FormatUntyped(&out, format, args)) {
>+//       return std::nullopt;
>+//     }
>+//     return std::move(out);
>+//   }
>+//
>+ABSL_MUST_USE_RESULT inline bool FormatUntyped(
>+    FormatRawSink raw_sink, const UntypedFormatSpec& format,
>+    absl::Span<const FormatArg> args) {
>+  return str_format_internal::FormatUntyped(
>+      str_format_internal::FormatRawSinkImpl::Extract(raw_sink),
>+      str_format_internal::UntypedFormatSpecImpl::Extract(format), args);
>+}
>+
>+}  // namespace absl
>+#endif  // ABSL_STRINGS_STR_FORMAT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fed75fafb5c65c11b92f8edbca538a4acdd1177c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_format_test.cc
>@@ -0,0 +1,603 @@
>+
>+#include <cstdarg>
>+#include <cstdint>
>+#include <cstdio>
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_format.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace {
>+using str_format_internal::FormatArgImpl;
>+
>+class FormatEntryPointTest : public ::testing::Test { };
>+
>+TEST_F(FormatEntryPointTest, Format) {
>+  std::string sink;
>+  EXPECT_TRUE(Format(&sink, "A format %d", 123));
>+  EXPECT_EQ("A format 123", sink);
>+  sink.clear();
>+
>+  ParsedFormat<'d'> pc("A format %d");
>+  EXPECT_TRUE(Format(&sink, pc, 123));
>+  EXPECT_EQ("A format 123", sink);
>+}
>+TEST_F(FormatEntryPointTest, UntypedFormat) {
>+  constexpr const char* formats[] = {
>+    "",
>+    "a",
>+    "%80d",
>+#if !defined(_MSC_VER) && !defined(__ANDROID__)
>+    // MSVC and Android don't support positional syntax.
>+    "complicated multipart %% %1$d format %1$0999d",
>+#endif  // _MSC_VER
>+  };
>+  for (const char* fmt : formats) {
>+    std::string actual;
>+    int i = 123;
>+    FormatArgImpl arg_123(i);
>+    absl::Span<const FormatArgImpl> args(&arg_123, 1);
>+    UntypedFormatSpec format(fmt);
>+
>+    EXPECT_TRUE(FormatUntyped(&actual, format, args));
>+    char buf[4096]{};
>+    snprintf(buf, sizeof(buf), fmt, 123);
>+    EXPECT_EQ(
>+        str_format_internal::FormatPack(
>+            str_format_internal::UntypedFormatSpecImpl::Extract(format), args),
>+        buf);
>+    EXPECT_EQ(actual, buf);
>+  }
>+  // The internal version works with a preparsed format.
>+  ParsedFormat<'d'> pc("A format %d");
>+  int i = 345;
>+  FormatArg arg(i);
>+  std::string out;
>+  EXPECT_TRUE(str_format_internal::FormatUntyped(
>+      &out, str_format_internal::UntypedFormatSpecImpl(&pc), {&arg, 1}));
>+  EXPECT_EQ("A format 345", out);
>+}
>+
>+TEST_F(FormatEntryPointTest, StringFormat) {
>+  EXPECT_EQ("123", StrFormat("%d", 123));
>+  constexpr absl::string_view view("=%d=", 4);
>+  EXPECT_EQ("=123=", StrFormat(view, 123));
>+}
>+
>+TEST_F(FormatEntryPointTest, AppendFormat) {
>+  std::string s;
>+  std::string& r = StrAppendFormat(&s, "%d", 123);
>+  EXPECT_EQ(&s, &r);  // should be same object
>+  EXPECT_EQ("123", r);
>+}
>+
>+TEST_F(FormatEntryPointTest, AppendFormatFail) {
>+  std::string s = "orig";
>+
>+  UntypedFormatSpec format(" more %d");
>+  FormatArgImpl arg("not an int");
>+
>+  EXPECT_EQ("orig",
>+            str_format_internal::AppendPack(
>+                &s, str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+                {&arg, 1}));
>+}
>+
>+
>+TEST_F(FormatEntryPointTest, ManyArgs) {
>+  EXPECT_EQ("24", StrFormat("%24$d", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
>+                            14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24));
>+  EXPECT_EQ("60", StrFormat("%60$d", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
>+                            14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
>+                            27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
>+                            40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
>+                            53, 54, 55, 56, 57, 58, 59, 60));
>+}
>+
>+TEST_F(FormatEntryPointTest, Preparsed) {
>+  ParsedFormat<'d'> pc("%d");
>+  EXPECT_EQ("123", StrFormat(pc, 123));
>+  // rvalue ok?
>+  EXPECT_EQ("123", StrFormat(ParsedFormat<'d'>("%d"), 123));
>+  constexpr absl::string_view view("=%d=", 4);
>+  EXPECT_EQ("=123=", StrFormat(ParsedFormat<'d'>(view), 123));
>+}
>+
>+TEST_F(FormatEntryPointTest, FormatCountCapture) {
>+  int n = 0;
>+  EXPECT_EQ("", StrFormat("%n", FormatCountCapture(&n)));
>+  EXPECT_EQ(0, n);
>+  EXPECT_EQ("123", StrFormat("%d%n", 123, FormatCountCapture(&n)));
>+  EXPECT_EQ(3, n);
>+}
>+
>+TEST_F(FormatEntryPointTest, FormatCountCaptureWrongType) {
>+  // Should reject int*.
>+  int n = 0;
>+  UntypedFormatSpec format("%d%n");
>+  int i = 123, *ip = &n;
>+  FormatArgImpl args[2] = {FormatArgImpl(i), FormatArgImpl(ip)};
>+
>+  EXPECT_EQ("", str_format_internal::FormatPack(
>+                    str_format_internal::UntypedFormatSpecImpl::Extract(format),
>+                    absl::MakeSpan(args)));
>+}
>+
>+TEST_F(FormatEntryPointTest, FormatCountCaptureMultiple) {
>+  int n1 = 0;
>+  int n2 = 0;
>+  EXPECT_EQ("    1         2",
>+            StrFormat("%5d%n%10d%n", 1, FormatCountCapture(&n1), 2,
>+                      FormatCountCapture(&n2)));
>+  EXPECT_EQ(5, n1);
>+  EXPECT_EQ(15, n2);
>+}
>+
>+TEST_F(FormatEntryPointTest, FormatCountCaptureExample) {
>+  int n;
>+  std::string s;
>+  StrAppendFormat(&s, "%s: %n%s\n", "(1,1)", FormatCountCapture(&n), "(1,2)");
>+  StrAppendFormat(&s, "%*s%s\n", n, "", "(2,2)");
>+  EXPECT_EQ(7, n);
>+  EXPECT_EQ(
>+      "(1,1): (1,2)\n"
>+      "       (2,2)\n",
>+      s);
>+}
>+
>+TEST_F(FormatEntryPointTest, Stream) {
>+  const std::string formats[] = {
>+    "",
>+    "a",
>+    "%80d",
>+#if !defined(_MSC_VER) && !defined(__ANDROID__)
>+    // MSVC doesn't support positional syntax.
>+    "complicated multipart %% %1$d format %1$080d",
>+#endif  // _MSC_VER
>+  };
>+  std::string buf(4096, '\0');
>+  for (const auto& fmt : formats) {
>+    const auto parsed = ParsedFormat<'d'>::NewAllowIgnored(fmt);
>+    std::ostringstream oss;
>+    oss << StreamFormat(*parsed, 123);
>+    int fmt_result = snprintf(&*buf.begin(), buf.size(), fmt.c_str(), 123);
>+    ASSERT_TRUE(oss) << fmt;
>+    ASSERT_TRUE(fmt_result >= 0 && static_cast<size_t>(fmt_result) < buf.size())
>+        << fmt_result;
>+    EXPECT_EQ(buf.c_str(), oss.str());
>+  }
>+}
>+
>+TEST_F(FormatEntryPointTest, StreamOk) {
>+  std::ostringstream oss;
>+  oss << StreamFormat("hello %d", 123);
>+  EXPECT_EQ("hello 123", oss.str());
>+  EXPECT_TRUE(oss.good());
>+}
>+
>+TEST_F(FormatEntryPointTest, StreamFail) {
>+  std::ostringstream oss;
>+  UntypedFormatSpec format("hello %d");
>+  FormatArgImpl arg("non-numeric");
>+  oss << str_format_internal::Streamable(
>+      str_format_internal::UntypedFormatSpecImpl::Extract(format), {&arg, 1});
>+  EXPECT_EQ("hello ", oss.str());  // partial write
>+  EXPECT_TRUE(oss.fail());
>+}
>+
>+std::string WithSnprintf(const char* fmt, ...) {
>+  std::string buf;
>+  buf.resize(128);
>+  va_list va;
>+  va_start(va, fmt);
>+  int r = vsnprintf(&*buf.begin(), buf.size(), fmt, va);
>+  va_end(va);
>+  EXPECT_GE(r, 0);
>+  EXPECT_LT(r, buf.size());
>+  buf.resize(r);
>+  return buf;
>+}
>+
>+TEST_F(FormatEntryPointTest, FloatPrecisionArg) {
>+  // Test that positional parameters for width and precision
>+  // are indexed to precede the value.
>+  // Also sanity check the same formats against snprintf.
>+  EXPECT_EQ("0.1", StrFormat("%.1f", 0.1));
>+  EXPECT_EQ("0.1", WithSnprintf("%.1f", 0.1));
>+  EXPECT_EQ("  0.1", StrFormat("%*.1f", 5, 0.1));
>+  EXPECT_EQ("  0.1", WithSnprintf("%*.1f", 5, 0.1));
>+  EXPECT_EQ("0.1", StrFormat("%.*f", 1, 0.1));
>+  EXPECT_EQ("0.1", WithSnprintf("%.*f", 1, 0.1));
>+  EXPECT_EQ("  0.1", StrFormat("%*.*f", 5, 1, 0.1));
>+  EXPECT_EQ("  0.1", WithSnprintf("%*.*f", 5, 1, 0.1));
>+}
>+namespace streamed_test {
>+struct X {};
>+std::ostream& operator<<(std::ostream& os, const X&) {
>+  return os << "X";
>+}
>+}  // streamed_test
>+
>+TEST_F(FormatEntryPointTest, FormatStreamed) {
>+  EXPECT_EQ("123", StrFormat("%s", FormatStreamed(123)));
>+  EXPECT_EQ("  123", StrFormat("%5s", FormatStreamed(123)));
>+  EXPECT_EQ("123  ", StrFormat("%-5s", FormatStreamed(123)));
>+  EXPECT_EQ("X", StrFormat("%s", FormatStreamed(streamed_test::X())));
>+  EXPECT_EQ("123", StrFormat("%s", FormatStreamed(StreamFormat("%d", 123))));
>+}
>+
>+// Helper class that creates a temporary file and exposes a FILE* to it.
>+// It will close the file on destruction.
>+class TempFile {
>+ public:
>+  TempFile() : file_(std::tmpfile()) {}
>+  ~TempFile() { std::fclose(file_); }
>+
>+  std::FILE* file() const { return file_; }
>+
>+  // Read the file into a std::string.
>+  std::string ReadFile() {
>+    std::fseek(file_, 0, SEEK_END);
>+    int size = std::ftell(file_);
>+    std::rewind(file_);
>+    std::string str(2 * size, ' ');
>+    int read_bytes = std::fread(&str[0], 1, str.size(), file_);
>+    EXPECT_EQ(read_bytes, size);
>+    str.resize(read_bytes);
>+    EXPECT_TRUE(std::feof(file_));
>+    return str;
>+  }
>+
>+ private:
>+  std::FILE* file_;
>+};
>+
>+TEST_F(FormatEntryPointTest, FPrintF) {
>+  TempFile tmp;
>+  int result =
>+      FPrintF(tmp.file(), "STRING: %s NUMBER: %010d", std::string("ABC"), -19);
>+  EXPECT_EQ(result, 30);
>+  EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
>+}
>+
>+TEST_F(FormatEntryPointTest, FPrintFError) {
>+  errno = 0;
>+  int result = FPrintF(stdin, "ABC");
>+  EXPECT_LT(result, 0);
>+  EXPECT_EQ(errno, EBADF);
>+}
>+
>+#if __GNUC__
>+TEST_F(FormatEntryPointTest, FprintfTooLarge) {
>+  std::FILE* f = std::fopen("/dev/null", "w");
>+  int width = 2000000000;
>+  errno = 0;
>+  int result = FPrintF(f, "%*d %*d", width, 0, width, 0);
>+  EXPECT_LT(result, 0);
>+  EXPECT_EQ(errno, EFBIG);
>+  std::fclose(f);
>+}
>+
>+TEST_F(FormatEntryPointTest, PrintF) {
>+  int stdout_tmp = dup(STDOUT_FILENO);
>+
>+  TempFile tmp;
>+  std::fflush(stdout);
>+  dup2(fileno(tmp.file()), STDOUT_FILENO);
>+
>+  int result = PrintF("STRING: %s NUMBER: %010d", std::string("ABC"), -19);
>+
>+  std::fflush(stdout);
>+  dup2(stdout_tmp, STDOUT_FILENO);
>+  close(stdout_tmp);
>+
>+  EXPECT_EQ(result, 30);
>+  EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
>+}
>+#endif  // __GNUC__
>+
>+TEST_F(FormatEntryPointTest, SNPrintF) {
>+  char buffer[16];
>+  int result =
>+      SNPrintF(buffer, sizeof(buffer), "STRING: %s", std::string("ABC"));
>+  EXPECT_EQ(result, 11);
>+  EXPECT_EQ(std::string(buffer), "STRING: ABC");
>+
>+  result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456);
>+  EXPECT_EQ(result, 14);
>+  EXPECT_EQ(std::string(buffer), "NUMBER: 123456");
>+
>+  result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 1234567);
>+  EXPECT_EQ(result, 15);
>+  EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
>+
>+  result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 12345678);
>+  EXPECT_EQ(result, 16);
>+  EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
>+
>+  result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456789);
>+  EXPECT_EQ(result, 17);
>+  EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
>+
>+  result = SNPrintF(nullptr, 0, "Just checking the %s of the output.", "size");
>+  EXPECT_EQ(result, 37);
>+}
>+
>+TEST(StrFormat, BehavesAsDocumented) {
>+  std::string s = absl::StrFormat("%s, %d!", "Hello", 123);
>+  EXPECT_EQ("Hello, 123!", s);
>+  // The format of a replacement is
>+  // '%'[position][flags][width['.'precision]][length_modifier][format]
>+  EXPECT_EQ(absl::StrFormat("%1$+3.2Lf", 1.1), "+1.10");
>+  // Text conversion:
>+  //     "c" - Character.              Eg: 'a' -> "A", 20 -> " "
>+  EXPECT_EQ(StrFormat("%c", 'a'), "a");
>+  EXPECT_EQ(StrFormat("%c", 0x20), " ");
>+  //           Formats char and integral types: int, long, uint64_t, etc.
>+  EXPECT_EQ(StrFormat("%c", int{'a'}), "a");
>+  EXPECT_EQ(StrFormat("%c", long{'a'}), "a");  // NOLINT
>+  EXPECT_EQ(StrFormat("%c", uint64_t{'a'}), "a");
>+  //     "s" - std::string                  Eg: "C" -> "C", std::string("C++") -> "C++"
>+  //           Formats std::string, char*, string_view, and Cord.
>+  EXPECT_EQ(StrFormat("%s", "C"), "C");
>+  EXPECT_EQ(StrFormat("%s", std::string("C++")), "C++");
>+  EXPECT_EQ(StrFormat("%s", string_view("view")), "view");
>+  // Integral Conversion
>+  //     These format integral types: char, int, long, uint64_t, etc.
>+  EXPECT_EQ(StrFormat("%d", char{10}), "10");
>+  EXPECT_EQ(StrFormat("%d", int{10}), "10");
>+  EXPECT_EQ(StrFormat("%d", long{10}), "10");  // NOLINT
>+  EXPECT_EQ(StrFormat("%d", uint64_t{10}), "10");
>+  //     d,i - signed decimal          Eg: -10 -> "-10"
>+  EXPECT_EQ(StrFormat("%d", -10), "-10");
>+  EXPECT_EQ(StrFormat("%i", -10), "-10");
>+  //      o  - octal                   Eg:  10 -> "12"
>+  EXPECT_EQ(StrFormat("%o", 10), "12");
>+  //      u  - unsigned decimal        Eg:  10 -> "10"
>+  EXPECT_EQ(StrFormat("%u", 10), "10");
>+  //     x/X - lower,upper case hex    Eg:  10 -> "a"/"A"
>+  EXPECT_EQ(StrFormat("%x", 10), "a");
>+  EXPECT_EQ(StrFormat("%X", 10), "A");
>+  // Floating-point, with upper/lower-case output.
>+  //     These format floating points types: float, double, long double, etc.
>+  EXPECT_EQ(StrFormat("%.1f", float{1}), "1.0");
>+  EXPECT_EQ(StrFormat("%.1f", double{1}), "1.0");
>+  const long double long_double = 1.0;
>+  EXPECT_EQ(StrFormat("%.1f", long_double), "1.0");
>+  //     These also format integral types: char, int, long, uint64_t, etc.:
>+  EXPECT_EQ(StrFormat("%.1f", char{1}), "1.0");
>+  EXPECT_EQ(StrFormat("%.1f", int{1}), "1.0");
>+  EXPECT_EQ(StrFormat("%.1f", long{1}), "1.0");  // NOLINT
>+  EXPECT_EQ(StrFormat("%.1f", uint64_t{1}), "1.0");
>+  //     f/F - decimal.                Eg: 123456789 -> "123456789.000000"
>+  EXPECT_EQ(StrFormat("%f", 123456789), "123456789.000000");
>+  EXPECT_EQ(StrFormat("%F", 123456789), "123456789.000000");
>+  //     e/E - exponentiated           Eg: .01 -> "1.00000e-2"/"1.00000E-2"
>+  EXPECT_EQ(StrFormat("%e", .01), "1.000000e-02");
>+  EXPECT_EQ(StrFormat("%E", .01), "1.000000E-02");
>+  //     g/G - exponentiate to fit     Eg: .01 -> "0.01", 1e10 ->"1e+10"/"1E+10"
>+  EXPECT_EQ(StrFormat("%g", .01), "0.01");
>+  EXPECT_EQ(StrFormat("%g", 1e10), "1e+10");
>+  EXPECT_EQ(StrFormat("%G", 1e10), "1E+10");
>+  //     a/A - lower,upper case hex    Eg: -3.0 -> "-0x1.8p+1"/"-0X1.8P+1"
>+
>+// On Android platform <=21, there is a regression in hexfloat formatting.
>+#if !defined(__ANDROID_API__) || __ANDROID_API__ > 21
>+  EXPECT_EQ(StrFormat("%.1a", -3.0), "-0x1.8p+1");  // .1 to fix MSVC output
>+  EXPECT_EQ(StrFormat("%.1A", -3.0), "-0X1.8P+1");  // .1 to fix MSVC output
>+#endif
>+
>+  // Other conversion
>+  int64_t value = 0x7ffdeb6;
>+  auto ptr_value = static_cast<uintptr_t>(value);
>+  const int& something = *reinterpret_cast<const int*>(ptr_value);
>+  EXPECT_EQ(StrFormat("%p", &something), StrFormat("0x%x", ptr_value));
>+
>+  // Output widths are supported, with optional flags.
>+  EXPECT_EQ(StrFormat("%3d", 1), "  1");
>+  EXPECT_EQ(StrFormat("%3d", 123456), "123456");
>+  EXPECT_EQ(StrFormat("%06.2f", 1.234), "001.23");
>+  EXPECT_EQ(StrFormat("%+d", 1), "+1");
>+  EXPECT_EQ(StrFormat("% d", 1), " 1");
>+  EXPECT_EQ(StrFormat("%-4d", -1), "-1  ");
>+  EXPECT_EQ(StrFormat("%#o", 10), "012");
>+  EXPECT_EQ(StrFormat("%#x", 15), "0xf");
>+  EXPECT_EQ(StrFormat("%04d", 8), "0008");
>+  // Posix positional substitution.
>+  EXPECT_EQ(absl::StrFormat("%2$s, %3$s, %1$s!", "vici", "veni", "vidi"),
>+            "veni, vidi, vici!");
>+  // Length modifiers are ignored.
>+  EXPECT_EQ(StrFormat("%hhd", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%hd", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%ld", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%lld", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%Ld", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%jd", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%zd", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%td", int{1}), "1");
>+  EXPECT_EQ(StrFormat("%qd", int{1}), "1");
>+}
>+
>+using str_format_internal::ExtendedParsedFormat;
>+using str_format_internal::ParsedFormatBase;
>+
>+struct SummarizeConsumer {
>+  std::string* out;
>+  explicit SummarizeConsumer(std::string* out) : out(out) {}
>+
>+  bool Append(string_view s) {
>+    *out += "[" + std::string(s) + "]";
>+    return true;
>+  }
>+
>+  bool ConvertOne(const str_format_internal::UnboundConversion& conv,
>+                  string_view s) {
>+    *out += "{";
>+    *out += std::string(s);
>+    *out += ":";
>+    *out += std::to_string(conv.arg_position) + "$";
>+    if (conv.width.is_from_arg()) {
>+      *out += std::to_string(conv.width.get_from_arg()) + "$*";
>+    }
>+    if (conv.precision.is_from_arg()) {
>+      *out += "." + std::to_string(conv.precision.get_from_arg()) + "$*";
>+    }
>+    *out += conv.conv.Char();
>+    *out += "}";
>+    return true;
>+  }
>+};
>+
>+std::string SummarizeParsedFormat(const ParsedFormatBase& pc) {
>+  std::string out;
>+  if (!pc.ProcessFormat(SummarizeConsumer(&out))) out += "!";
>+  return out;
>+}
>+
>+class ParsedFormatTest : public testing::Test {};
>+
>+TEST_F(ParsedFormatTest, SimpleChecked) {
>+  EXPECT_EQ("[ABC]{d:1$d}[DEF]",
>+            SummarizeParsedFormat(ParsedFormat<'d'>("ABC%dDEF")));
>+  EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}",
>+            SummarizeParsedFormat(ParsedFormat<'s', 'd', 'f'>("%sFFF%dZZZ%f")));
>+  EXPECT_EQ("{s:1$s}[ ]{.*d:3$.2$*d}",
>+            SummarizeParsedFormat(ParsedFormat<'s', '*', 'd'>("%s %.*d")));
>+}
>+
>+TEST_F(ParsedFormatTest, SimpleUncheckedCorrect) {
>+  auto f = ParsedFormat<'d'>::New("ABC%dDEF");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f));
>+
>+  std::string format = "%sFFF%dZZZ%f";
>+  auto f2 = ParsedFormat<'s', 'd', 'f'>::New(format);
>+
>+  ASSERT_TRUE(f2);
>+  EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2));
>+
>+  f2 = ParsedFormat<'s', 'd', 'f'>::New("%s %d %f");
>+
>+  ASSERT_TRUE(f2);
>+  EXPECT_EQ("{s:1$s}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2));
>+
>+  auto star = ParsedFormat<'*', 'd'>::New("%*d");
>+  ASSERT_TRUE(star);
>+  EXPECT_EQ("{*d:2$1$*d}", SummarizeParsedFormat(*star));
>+
>+  auto dollar = ParsedFormat<'d', 's'>::New("%2$s %1$d");
>+  ASSERT_TRUE(dollar);
>+  EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}", SummarizeParsedFormat(*dollar));
>+  // with reuse
>+  dollar = ParsedFormat<'d', 's'>::New("%2$s %1$d %1$d");
>+  ASSERT_TRUE(dollar);
>+  EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}[ ]{1$d:1$d}",
>+            SummarizeParsedFormat(*dollar));
>+}
>+
>+TEST_F(ParsedFormatTest, SimpleUncheckedIgnoredArgs) {
>+  EXPECT_FALSE((ParsedFormat<'d', 's'>::New("ABC")));
>+  EXPECT_FALSE((ParsedFormat<'d', 's'>::New("%dABC")));
>+  EXPECT_FALSE((ParsedFormat<'d', 's'>::New("ABC%2$s")));
>+  auto f = ParsedFormat<'d', 's'>::NewAllowIgnored("ABC");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]", SummarizeParsedFormat(*f));
>+  f = ParsedFormat<'d', 's'>::NewAllowIgnored("%dABC");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("{d:1$d}[ABC]", SummarizeParsedFormat(*f));
>+  f = ParsedFormat<'d', 's'>::NewAllowIgnored("ABC%2$s");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]{2$s:2$s}", SummarizeParsedFormat(*f));
>+}
>+
>+TEST_F(ParsedFormatTest, SimpleUncheckedUnsupported) {
>+  EXPECT_FALSE(ParsedFormat<'d'>::New("%1$d %1$x"));
>+  EXPECT_FALSE(ParsedFormat<'x'>::New("%1$d %1$x"));
>+}
>+
>+TEST_F(ParsedFormatTest, SimpleUncheckedIncorrect) {
>+  EXPECT_FALSE(ParsedFormat<'d'>::New(""));
>+
>+  EXPECT_FALSE(ParsedFormat<'d'>::New("ABC%dDEF%d"));
>+
>+  std::string format = "%sFFF%dZZZ%f";
>+  EXPECT_FALSE((ParsedFormat<'s', 'd', 'g'>::New(format)));
>+}
>+
>+using str_format_internal::Conv;
>+
>+TEST_F(ParsedFormatTest, UncheckedCorrect) {
>+  auto f = ExtendedParsedFormat<Conv::d>::New("ABC%dDEF");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f));
>+
>+  std::string format = "%sFFF%dZZZ%f";
>+  auto f2 =
>+      ExtendedParsedFormat<Conv::string, Conv::d, Conv::floating>::New(format);
>+
>+  ASSERT_TRUE(f2);
>+  EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2));
>+
>+  f2 = ExtendedParsedFormat<Conv::string, Conv::d, Conv::floating>::New(
>+      "%s %d %f");
>+
>+  ASSERT_TRUE(f2);
>+  EXPECT_EQ("{s:1$s}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2));
>+
>+  auto star = ExtendedParsedFormat<Conv::star, Conv::d>::New("%*d");
>+  ASSERT_TRUE(star);
>+  EXPECT_EQ("{*d:2$1$*d}", SummarizeParsedFormat(*star));
>+
>+  auto dollar = ExtendedParsedFormat<Conv::d, Conv::s>::New("%2$s %1$d");
>+  ASSERT_TRUE(dollar);
>+  EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}", SummarizeParsedFormat(*dollar));
>+  // with reuse
>+  dollar = ExtendedParsedFormat<Conv::d, Conv::s>::New("%2$s %1$d %1$d");
>+  ASSERT_TRUE(dollar);
>+  EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}[ ]{1$d:1$d}",
>+            SummarizeParsedFormat(*dollar));
>+}
>+
>+TEST_F(ParsedFormatTest, UncheckedIgnoredArgs) {
>+  EXPECT_FALSE((ExtendedParsedFormat<Conv::d, Conv::s>::New("ABC")));
>+  EXPECT_FALSE((ExtendedParsedFormat<Conv::d, Conv::s>::New("%dABC")));
>+  EXPECT_FALSE((ExtendedParsedFormat<Conv::d, Conv::s>::New("ABC%2$s")));
>+  auto f = ExtendedParsedFormat<Conv::d, Conv::s>::NewAllowIgnored("ABC");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]", SummarizeParsedFormat(*f));
>+  f = ExtendedParsedFormat<Conv::d, Conv::s>::NewAllowIgnored("%dABC");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("{d:1$d}[ABC]", SummarizeParsedFormat(*f));
>+  f = ExtendedParsedFormat<Conv::d, Conv::s>::NewAllowIgnored("ABC%2$s");
>+  ASSERT_TRUE(f);
>+  EXPECT_EQ("[ABC]{2$s:2$s}", SummarizeParsedFormat(*f));
>+}
>+
>+TEST_F(ParsedFormatTest, UncheckedMultipleTypes) {
>+  auto dx = ExtendedParsedFormat<Conv::d | Conv::x>::New("%1$d %1$x");
>+  EXPECT_TRUE(dx);
>+  EXPECT_EQ("{1$d:1$d}[ ]{1$x:1$x}", SummarizeParsedFormat(*dx));
>+
>+  dx = ExtendedParsedFormat<Conv::d | Conv::x>::New("%1$d");
>+  EXPECT_TRUE(dx);
>+  EXPECT_EQ("{1$d:1$d}", SummarizeParsedFormat(*dx));
>+}
>+
>+TEST_F(ParsedFormatTest, UncheckedIncorrect) {
>+  EXPECT_FALSE(ExtendedParsedFormat<Conv::d>::New(""));
>+
>+  EXPECT_FALSE(ExtendedParsedFormat<Conv::d>::New("ABC%dDEF%d"));
>+
>+  std::string format = "%sFFF%dZZZ%f";
>+  EXPECT_FALSE((ExtendedParsedFormat<Conv::s, Conv::d, Conv::g>::New(format)));
>+}
>+
>+TEST_F(ParsedFormatTest, RegressionMixPositional) {
>+  EXPECT_FALSE((ExtendedParsedFormat<Conv::d, Conv::o>::New("%1$d %o")));
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..bd4d0e1d9324cc729214449935b57337a6716fb7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join.h
>@@ -0,0 +1,288 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: str_join.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains functions for joining a range of elements and
>+// returning the result as a std::string. StrJoin operations are specified by passing
>+// a range, a separator std::string to use between the elements joined, and an
>+// optional Formatter responsible for converting each argument in the range to a
>+// std::string. If omitted, a default `AlphaNumFormatter()` is called on the elements
>+// to be joined, using the same formatting that `absl::StrCat()` uses. This
>+// package defines a number of default formatters, and you can define your own
>+// implementations.
>+//
>+// Ranges are specified by passing a container with `std::begin()` and
>+// `std::end()` iterators, container-specific `begin()` and `end()` iterators, a
>+// brace-initialized `std::initializer_list`, or a `std::tuple` of heterogeneous
>+// objects. The separator std::string is specified as an `absl::string_view`.
>+//
>+// Because the default formatter uses the `absl::AlphaNum` class,
>+// `absl::StrJoin()`, like `absl::StrCat()`, will work out-of-the-box on
>+// collections of strings, ints, floats, doubles, etc.
>+//
>+// Example:
>+//
>+//   std::vector<std::string> v = {"foo", "bar", "baz"};
>+//   std::string s = absl::StrJoin(v, "-");
>+//   EXPECT_EQ("foo-bar-baz", s);
>+//
>+// See comments on the `absl::StrJoin()` function for more examples.
>+
>+#ifndef ABSL_STRINGS_STR_JOIN_H_
>+#define ABSL_STRINGS_STR_JOIN_H_
>+
>+#include <cstdio>
>+#include <cstring>
>+#include <initializer_list>
>+#include <iterator>
>+#include <string>
>+#include <tuple>
>+#include <utility>
>+
>+#include "absl/base/macros.h"
>+#include "absl/strings/internal/str_join_internal.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// Concept: Formatter
>+// -----------------------------------------------------------------------------
>+//
>+// A Formatter is a function object that is responsible for formatting its
>+// argument as a std::string and appending it to a given output std::string. Formatters
>+// may be implemented as function objects, lambdas, or normal functions. You may
>+// provide your own Formatter to enable `absl::StrJoin()` to work with arbitrary
>+// types.
>+//
>+// The following is an example of a custom Formatter that simply uses
>+// `std::to_string()` to format an integer as a std::string.
>+//
>+//   struct MyFormatter {
>+//     void operator()(std::string* out, int i) const {
>+//       out->append(std::to_string(i));
>+//     }
>+//   };
>+//
>+// You would use the above formatter by passing an instance of it as the final
>+// argument to `absl::StrJoin()`:
>+//
>+//   std::vector<int> v = {1, 2, 3, 4};
>+//   std::string s = absl::StrJoin(v, "-", MyFormatter());
>+//   EXPECT_EQ("1-2-3-4", s);
>+//
>+// The following standard formatters are provided within this file:
>+//
>+// - `AlphaNumFormatter()` (the default)
>+// - `StreamFormatter()`
>+// - `PairFormatter()`
>+// - `DereferenceFormatter()`
>+
>+// AlphaNumFormatter()
>+//
>+// Default formatter used if none is specified. Uses `absl::AlphaNum` to convert
>+// numeric arguments to strings.
>+inline strings_internal::AlphaNumFormatterImpl AlphaNumFormatter() {
>+  return strings_internal::AlphaNumFormatterImpl();
>+}
>+
>+// StreamFormatter()
>+//
>+// Formats its argument using the << operator.
>+inline strings_internal::StreamFormatterImpl StreamFormatter() {
>+  return strings_internal::StreamFormatterImpl();
>+}
>+
>+// Function Template: PairFormatter(Formatter, absl::string_view, Formatter)
>+//
>+// Formats a `std::pair` by putting a given separator between the pair's
>+// `.first` and `.second` members. This formatter allows you to specify
>+// custom Formatters for both the first and second member of each pair.
>+template <typename FirstFormatter, typename SecondFormatter>
>+inline strings_internal::PairFormatterImpl<FirstFormatter, SecondFormatter>
>+PairFormatter(FirstFormatter f1, absl::string_view sep, SecondFormatter f2) {
>+  return strings_internal::PairFormatterImpl<FirstFormatter, SecondFormatter>(
>+      std::move(f1), sep, std::move(f2));
>+}
>+
>+// Function overload of PairFormatter() for using a default
>+// `AlphaNumFormatter()` for each Formatter in the pair.
>+inline strings_internal::PairFormatterImpl<
>+    strings_internal::AlphaNumFormatterImpl,
>+    strings_internal::AlphaNumFormatterImpl>
>+PairFormatter(absl::string_view sep) {
>+  return PairFormatter(AlphaNumFormatter(), sep, AlphaNumFormatter());
>+}
>+
>+// Function Template: DereferenceFormatter(Formatter)
>+//
>+// Formats its argument by dereferencing it and then applying the given
>+// formatter. This formatter is useful for formatting a container of
>+// pointer-to-T. This pattern often shows up when joining repeated fields in
>+// protocol buffers.
>+template <typename Formatter>
>+strings_internal::DereferenceFormatterImpl<Formatter> DereferenceFormatter(
>+    Formatter&& f) {
>+  return strings_internal::DereferenceFormatterImpl<Formatter>(
>+      std::forward<Formatter>(f));
>+}
>+
>+// Function overload of `DererefenceFormatter()` for using a default
>+// `AlphaNumFormatter()`.
>+inline strings_internal::DereferenceFormatterImpl<
>+    strings_internal::AlphaNumFormatterImpl>
>+DereferenceFormatter() {
>+  return strings_internal::DereferenceFormatterImpl<
>+      strings_internal::AlphaNumFormatterImpl>(AlphaNumFormatter());
>+}
>+
>+// -----------------------------------------------------------------------------
>+// StrJoin()
>+// -----------------------------------------------------------------------------
>+//
>+// Joins a range of elements and returns the result as a std::string.
>+// `absl::StrJoin()` takes a range, a separator std::string to use between the
>+// elements joined, and an optional Formatter responsible for converting each
>+// argument in the range to a std::string.
>+//
>+// If omitted, the default `AlphaNumFormatter()` is called on the elements to be
>+// joined.
>+//
>+// Example 1:
>+//   // Joins a collection of strings. This pattern also works with a collection
>+//   // of `absl::string_view` or even `const char*`.
>+//   std::vector<std::string> v = {"foo", "bar", "baz"};
>+//   std::string s = absl::StrJoin(v, "-");
>+//   EXPECT_EQ("foo-bar-baz", s);
>+//
>+// Example 2:
>+//   // Joins the values in the given `std::initializer_list<>` specified using
>+//   // brace initialization. This pattern also works with an initializer_list
>+//   // of ints or `absl::string_view` -- any `AlphaNum`-compatible type.
>+//   std::string s = absl::StrJoin({"foo", "bar", "baz"}, "-");
>+//   EXPECT_EQ("foo-bar-baz", s);
>+//
>+// Example 3:
>+//   // Joins a collection of ints. This pattern also works with floats,
>+//   // doubles, int64s -- any `StrCat()`-compatible type.
>+//   std::vector<int> v = {1, 2, 3, -4};
>+//   std::string s = absl::StrJoin(v, "-");
>+//   EXPECT_EQ("1-2-3--4", s);
>+//
>+// Example 4:
>+//   // Joins a collection of pointer-to-int. By default, pointers are
>+//   // dereferenced and the pointee is formatted using the default format for
>+//   // that type; such dereferencing occurs for all levels of indirection, so
>+//   // this pattern works just as well for `std::vector<int**>` as for
>+//   // `std::vector<int*>`.
>+//   int x = 1, y = 2, z = 3;
>+//   std::vector<int*> v = {&x, &y, &z};
>+//   std::string s = absl::StrJoin(v, "-");
>+//   EXPECT_EQ("1-2-3", s);
>+//
>+// Example 5:
>+//   // Dereferencing of `std::unique_ptr<>` is also supported:
>+//   std::vector<std::unique_ptr<int>> v
>+//   v.emplace_back(new int(1));
>+//   v.emplace_back(new int(2));
>+//   v.emplace_back(new int(3));
>+//   std::string s = absl::StrJoin(v, "-");
>+//   EXPECT_EQ("1-2-3", s);
>+//
>+// Example 6:
>+//   // Joins a `std::map`, with each key-value pair separated by an equals
>+//   // sign. This pattern would also work with, say, a
>+//   // `std::vector<std::pair<>>`.
>+//   std::map<std::string, int> m = {
>+//       std::make_pair("a", 1),
>+//       std::make_pair("b", 2),
>+//       std::make_pair("c", 3)};
>+//   std::string s = absl::StrJoin(m, ",", absl::PairFormatter("="));
>+//   EXPECT_EQ("a=1,b=2,c=3", s);
>+//
>+// Example 7:
>+//   // These examples show how `absl::StrJoin()` handles a few common edge
>+//   // cases:
>+//   std::vector<std::string> v_empty;
>+//   EXPECT_EQ("", absl::StrJoin(v_empty, "-"));
>+//
>+//   std::vector<std::string> v_one_item = {"foo"};
>+//   EXPECT_EQ("foo", absl::StrJoin(v_one_item, "-"));
>+//
>+//   std::vector<std::string> v_empty_string = {""};
>+//   EXPECT_EQ("", absl::StrJoin(v_empty_string, "-"));
>+//
>+//   std::vector<std::string> v_one_item_empty_string = {"a", ""};
>+//   EXPECT_EQ("a-", absl::StrJoin(v_one_item_empty_string, "-"));
>+//
>+//   std::vector<std::string> v_two_empty_string = {"", ""};
>+//   EXPECT_EQ("-", absl::StrJoin(v_two_empty_string, "-"));
>+//
>+// Example 8:
>+//   // Joins a `std::tuple<T...>` of heterogeneous types, converting each to
>+//   // a std::string using the `absl::AlphaNum` class.
>+//   std::string s = absl::StrJoin(std::make_tuple(123, "abc", 0.456), "-");
>+//   EXPECT_EQ("123-abc-0.456", s);
>+
>+template <typename Iterator, typename Formatter>
>+std::string StrJoin(Iterator start, Iterator end, absl::string_view sep,
>+               Formatter&& fmt) {
>+  return strings_internal::JoinAlgorithm(start, end, sep, fmt);
>+}
>+
>+template <typename Range, typename Formatter>
>+std::string StrJoin(const Range& range, absl::string_view separator,
>+               Formatter&& fmt) {
>+  return strings_internal::JoinRange(range, separator, fmt);
>+}
>+
>+template <typename T, typename Formatter>
>+std::string StrJoin(std::initializer_list<T> il, absl::string_view separator,
>+               Formatter&& fmt) {
>+  return strings_internal::JoinRange(il, separator, fmt);
>+}
>+
>+template <typename... T, typename Formatter>
>+std::string StrJoin(const std::tuple<T...>& value, absl::string_view separator,
>+               Formatter&& fmt) {
>+  return strings_internal::JoinAlgorithm(value, separator, fmt);
>+}
>+
>+template <typename Iterator>
>+std::string StrJoin(Iterator start, Iterator end, absl::string_view separator) {
>+  return strings_internal::JoinRange(start, end, separator);
>+}
>+
>+template <typename Range>
>+std::string StrJoin(const Range& range, absl::string_view separator) {
>+  return strings_internal::JoinRange(range, separator);
>+}
>+
>+template <typename T>
>+std::string StrJoin(std::initializer_list<T> il, absl::string_view separator) {
>+  return strings_internal::JoinRange(il, separator);
>+}
>+
>+template <typename... T>
>+std::string StrJoin(const std::tuple<T...>& value, absl::string_view separator) {
>+  return strings_internal::JoinAlgorithm(value, separator, AlphaNumFormatter());
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STR_JOIN_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7fb0e4973cb468e4d2c83c8d90db0b629181874e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_benchmark.cc
>@@ -0,0 +1,96 @@
>+//
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_join.h"
>+
>+#include <string>
>+#include <vector>
>+#include <utility>
>+
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+void BM_Join2_Strings(benchmark::State& state) {
>+  const int string_len = state.range(0);
>+  const int num_strings = state.range(1);
>+  const std::string s(string_len, 'x');
>+  const std::vector<std::string> v(num_strings, s);
>+  for (auto _ : state) {
>+    std::string s = absl::StrJoin(v, "-");
>+    benchmark::DoNotOptimize(s);
>+  }
>+}
>+BENCHMARK(BM_Join2_Strings)
>+    ->ArgPair(1 << 0, 1 << 3)
>+    ->ArgPair(1 << 10, 1 << 3)
>+    ->ArgPair(1 << 13, 1 << 3)
>+    ->ArgPair(1 << 0, 1 << 10)
>+    ->ArgPair(1 << 10, 1 << 10)
>+    ->ArgPair(1 << 13, 1 << 10)
>+    ->ArgPair(1 << 0, 1 << 13)
>+    ->ArgPair(1 << 10, 1 << 13)
>+    ->ArgPair(1 << 13, 1 << 13);
>+
>+void BM_Join2_Ints(benchmark::State& state) {
>+  const int num_ints = state.range(0);
>+  const std::vector<int> v(num_ints, 42);
>+  for (auto _ : state) {
>+    std::string s = absl::StrJoin(v, "-");
>+    benchmark::DoNotOptimize(s);
>+  }
>+}
>+BENCHMARK(BM_Join2_Ints)->Range(0, 1 << 13);
>+
>+void BM_Join2_KeysAndValues(benchmark::State& state) {
>+  const int string_len = state.range(0);
>+  const int num_pairs = state.range(1);
>+  const std::string s(string_len, 'x');
>+  const std::vector<std::pair<std::string, int>> v(num_pairs, std::make_pair(s, 42));
>+  for (auto _ : state) {
>+    std::string s = absl::StrJoin(v, ",", absl::PairFormatter("="));
>+    benchmark::DoNotOptimize(s);
>+  }
>+}
>+BENCHMARK(BM_Join2_KeysAndValues)
>+    ->ArgPair(1 << 0, 1 << 3)
>+    ->ArgPair(1 << 10, 1 << 3)
>+    ->ArgPair(1 << 13, 1 << 3)
>+    ->ArgPair(1 << 0, 1 << 10)
>+    ->ArgPair(1 << 10, 1 << 10)
>+    ->ArgPair(1 << 13, 1 << 10)
>+    ->ArgPair(1 << 0, 1 << 13)
>+    ->ArgPair(1 << 10, 1 << 13)
>+    ->ArgPair(1 << 13, 1 << 13);
>+
>+void BM_JoinStreamable(benchmark::State& state) {
>+  const int string_len = state.range(0);
>+  const int num_strings = state.range(1);
>+  const std::vector<std::string> v(num_strings, std::string(string_len, 'x'));
>+  for (auto _ : state) {
>+    std::string s = absl::StrJoin(v, "", absl::StreamFormatter());
>+    benchmark::DoNotOptimize(s);
>+  }
>+}
>+BENCHMARK(BM_JoinStreamable)
>+    ->ArgPair(0, 0)
>+    ->ArgPair(16, 1)
>+    ->ArgPair(256, 1)
>+    ->ArgPair(16, 16)
>+    ->ArgPair(256, 16)
>+    ->ArgPair(16, 256)
>+    ->ArgPair(256, 256);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c941f9c80d49982977f18e91c0c70790927ab85f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_join_test.cc
>@@ -0,0 +1,472 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit tests for all join.h functions
>+
>+#include "absl/strings/str_join.h"
>+
>+#include <cstddef>
>+#include <cstdint>
>+#include <cstdio>
>+#include <functional>
>+#include <initializer_list>
>+#include <map>
>+#include <memory>
>+#include <ostream>
>+#include <tuple>
>+#include <type_traits>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/macros.h"
>+#include "absl/memory/memory.h"
>+#include "absl/strings/str_cat.h"
>+#include "absl/strings/str_split.h"
>+
>+namespace {
>+
>+TEST(StrJoin, APIExamples) {
>+  {
>+    // Collection of strings
>+    std::vector<std::string> v = {"foo", "bar", "baz"};
>+    EXPECT_EQ("foo-bar-baz", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of absl::string_view
>+    std::vector<absl::string_view> v = {"foo", "bar", "baz"};
>+    EXPECT_EQ("foo-bar-baz", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of const char*
>+    std::vector<const char*> v = {"foo", "bar", "baz"};
>+    EXPECT_EQ("foo-bar-baz", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of non-const char*
>+    std::string a = "foo", b = "bar", c = "baz";
>+    std::vector<char*> v = {&a[0], &b[0], &c[0]};
>+    EXPECT_EQ("foo-bar-baz", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of ints
>+    std::vector<int> v = {1, 2, 3, -4};
>+    EXPECT_EQ("1-2-3--4", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Literals passed as a std::initializer_list
>+    std::string s = absl::StrJoin({"a", "b", "c"}, "-");
>+    EXPECT_EQ("a-b-c", s);
>+  }
>+  {
>+    // Join a std::tuple<T...>.
>+    std::string s = absl::StrJoin(std::make_tuple(123, "abc", 0.456), "-");
>+    EXPECT_EQ("123-abc-0.456", s);
>+  }
>+
>+  {
>+    // Collection of unique_ptrs
>+    std::vector<std::unique_ptr<int>> v;
>+    v.emplace_back(new int(1));
>+    v.emplace_back(new int(2));
>+    v.emplace_back(new int(3));
>+    EXPECT_EQ("1-2-3", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Array of ints
>+    const int a[] = {1, 2, 3, -4};
>+    EXPECT_EQ("1-2-3--4", absl::StrJoin(a, a + ABSL_ARRAYSIZE(a), "-"));
>+  }
>+
>+  {
>+    // Collection of pointers
>+    int x = 1, y = 2, z = 3;
>+    std::vector<int*> v = {&x, &y, &z};
>+    EXPECT_EQ("1-2-3", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of pointers to pointers
>+    int x = 1, y = 2, z = 3;
>+    int *px = &x, *py = &y, *pz = &z;
>+    std::vector<int**> v = {&px, &py, &pz};
>+    EXPECT_EQ("1-2-3", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // Collection of pointers to std::string
>+    std::string a("a"), b("b");
>+    std::vector<std::string*> v = {&a, &b};
>+    EXPECT_EQ("a-b", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A std::map, which is a collection of std::pair<>s.
>+    std::map<std::string, int> m = { {"a", 1}, {"b", 2}, {"c", 3} };
>+    EXPECT_EQ("a=1,b=2,c=3", absl::StrJoin(m, ",", absl::PairFormatter("=")));
>+  }
>+
>+  {
>+    // Shows absl::StrSplit and absl::StrJoin working together. This example is
>+    // equivalent to s/=/-/g.
>+    const std::string s = "a=b=c=d";
>+    EXPECT_EQ("a-b-c-d", absl::StrJoin(absl::StrSplit(s, "="), "-"));
>+  }
>+
>+  //
>+  // A few examples of edge cases
>+  //
>+
>+  {
>+    // Empty range yields an empty std::string.
>+    std::vector<std::string> v;
>+    EXPECT_EQ("", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A range of 1 element gives a std::string with that element but no separator.
>+    std::vector<std::string> v = {"foo"};
>+    EXPECT_EQ("foo", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A range with a single empty std::string element
>+    std::vector<std::string> v = {""};
>+    EXPECT_EQ("", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A range with 2 elements, one of which is an empty std::string
>+    std::vector<std::string> v = {"a", ""};
>+    EXPECT_EQ("a-", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A range with 2 empty elements.
>+    std::vector<std::string> v = {"", ""};
>+    EXPECT_EQ("-", absl::StrJoin(v, "-"));
>+  }
>+
>+  {
>+    // A std::vector of bool.
>+    std::vector<bool> v = {true, false, true};
>+    EXPECT_EQ("1-0-1", absl::StrJoin(v, "-"));
>+  }
>+}
>+
>+TEST(StrJoin, CustomFormatter) {
>+  std::vector<std::string> v{"One", "Two", "Three"};
>+  {
>+    std::string joined = absl::StrJoin(v, "", [](std::string* out, const std::string& in) {
>+      absl::StrAppend(out, "(", in, ")");
>+    });
>+    EXPECT_EQ("(One)(Two)(Three)", joined);
>+  }
>+  {
>+    class ImmovableFormatter {
>+     public:
>+      void operator()(std::string* out, const std::string& in) {
>+        absl::StrAppend(out, "(", in, ")");
>+      }
>+      ImmovableFormatter() {}
>+      ImmovableFormatter(const ImmovableFormatter&) = delete;
>+    };
>+    EXPECT_EQ("(One)(Two)(Three)", absl::StrJoin(v, "", ImmovableFormatter()));
>+  }
>+  {
>+    class OverloadedFormatter {
>+     public:
>+      void operator()(std::string* out, const std::string& in) {
>+        absl::StrAppend(out, "(", in, ")");
>+      }
>+      void operator()(std::string* out, const std::string& in) const {
>+        absl::StrAppend(out, "[", in, "]");
>+      }
>+    };
>+    EXPECT_EQ("(One)(Two)(Three)", absl::StrJoin(v, "", OverloadedFormatter()));
>+    const OverloadedFormatter fmt = {};
>+    EXPECT_EQ("[One][Two][Three]", absl::StrJoin(v, "", fmt));
>+  }
>+}
>+
>+//
>+// Tests the Formatters
>+//
>+
>+TEST(AlphaNumFormatter, FormatterAPI) {
>+  // Not an exhaustive test. See strings/strcat_test.h for the exhaustive test
>+  // of what AlphaNum can convert.
>+  auto f = absl::AlphaNumFormatter();
>+  std::string s;
>+  f(&s, "Testing: ");
>+  f(&s, static_cast<int>(1));
>+  f(&s, static_cast<int16_t>(2));
>+  f(&s, static_cast<int64_t>(3));
>+  f(&s, static_cast<float>(4));
>+  f(&s, static_cast<double>(5));
>+  f(&s, static_cast<unsigned>(6));
>+  f(&s, static_cast<size_t>(7));
>+  f(&s, absl::string_view(" OK"));
>+  EXPECT_EQ("Testing: 1234567 OK", s);
>+}
>+
>+// Make sure people who are mistakenly using std::vector<bool> even though
>+// they're not memory-constrained can use absl::AlphaNumFormatter().
>+TEST(AlphaNumFormatter, VectorOfBool) {
>+  auto f = absl::AlphaNumFormatter();
>+  std::string s;
>+  std::vector<bool> v = {true, false, true};
>+  f(&s, *v.cbegin());
>+  f(&s, *v.begin());
>+  f(&s, v[1]);
>+  EXPECT_EQ("110", s);
>+}
>+
>+TEST(AlphaNumFormatter, AlphaNum) {
>+  auto f = absl::AlphaNumFormatter();
>+  std::string s;
>+  f(&s, absl::AlphaNum("hello"));
>+  EXPECT_EQ("hello", s);
>+}
>+
>+struct StreamableType {
>+  std::string contents;
>+};
>+inline std::ostream& operator<<(std::ostream& os, const StreamableType& t) {
>+  os << "Streamable:" << t.contents;
>+  return os;
>+}
>+
>+TEST(StreamFormatter, FormatterAPI) {
>+  auto f = absl::StreamFormatter();
>+  std::string s;
>+  f(&s, "Testing: ");
>+  f(&s, static_cast<int>(1));
>+  f(&s, static_cast<int16_t>(2));
>+  f(&s, static_cast<int64_t>(3));
>+  f(&s, static_cast<float>(4));
>+  f(&s, static_cast<double>(5));
>+  f(&s, static_cast<unsigned>(6));
>+  f(&s, static_cast<size_t>(7));
>+  f(&s, absl::string_view(" OK "));
>+  StreamableType streamable = {"object"};
>+  f(&s, streamable);
>+  EXPECT_EQ("Testing: 1234567 OK Streamable:object", s);
>+}
>+
>+// A dummy formatter that wraps each element in parens. Used in some tests
>+// below.
>+struct TestingParenFormatter {
>+  template <typename T>
>+  void operator()(std::string* s, const T& t) {
>+    absl::StrAppend(s, "(", t, ")");
>+  }
>+};
>+
>+TEST(PairFormatter, FormatterAPI) {
>+  {
>+    // Tests default PairFormatter(sep) that uses AlphaNumFormatter for the
>+    // 'first' and 'second' members.
>+    const auto f = absl::PairFormatter("=");
>+    std::string s;
>+    f(&s, std::make_pair("a", "b"));
>+    f(&s, std::make_pair(1, 2));
>+    EXPECT_EQ("a=b1=2", s);
>+  }
>+
>+  {
>+    // Tests using a custom formatter for the 'first' and 'second' members.
>+    auto f = absl::PairFormatter(TestingParenFormatter(), "=",
>+                                 TestingParenFormatter());
>+    std::string s;
>+    f(&s, std::make_pair("a", "b"));
>+    f(&s, std::make_pair(1, 2));
>+    EXPECT_EQ("(a)=(b)(1)=(2)", s);
>+  }
>+}
>+
>+TEST(DereferenceFormatter, FormatterAPI) {
>+  {
>+    // Tests wrapping the default AlphaNumFormatter.
>+    const absl::strings_internal::DereferenceFormatterImpl<
>+        absl::strings_internal::AlphaNumFormatterImpl>
>+        f;
>+    int x = 1, y = 2, z = 3;
>+    std::string s;
>+    f(&s, &x);
>+    f(&s, &y);
>+    f(&s, &z);
>+    EXPECT_EQ("123", s);
>+  }
>+
>+  {
>+    // Tests wrapping std::string's default formatter.
>+    absl::strings_internal::DereferenceFormatterImpl<
>+        absl::strings_internal::DefaultFormatter<std::string>::Type>
>+        f;
>+
>+    std::string x = "x";
>+    std::string y = "y";
>+    std::string z = "z";
>+    std::string s;
>+    f(&s, &x);
>+    f(&s, &y);
>+    f(&s, &z);
>+    EXPECT_EQ(s, "xyz");
>+  }
>+
>+  {
>+    // Tests wrapping a custom formatter.
>+    auto f = absl::DereferenceFormatter(TestingParenFormatter());
>+    int x = 1, y = 2, z = 3;
>+    std::string s;
>+    f(&s, &x);
>+    f(&s, &y);
>+    f(&s, &z);
>+    EXPECT_EQ("(1)(2)(3)", s);
>+  }
>+
>+  {
>+    absl::strings_internal::DereferenceFormatterImpl<
>+        absl::strings_internal::AlphaNumFormatterImpl>
>+        f;
>+    auto x = std::unique_ptr<int>(new int(1));
>+    auto y = std::unique_ptr<int>(new int(2));
>+    auto z = std::unique_ptr<int>(new int(3));
>+    std::string s;
>+    f(&s, x);
>+    f(&s, y);
>+    f(&s, z);
>+    EXPECT_EQ("123", s);
>+  }
>+}
>+
>+//
>+// Tests the interfaces for the 4 public Join function overloads. The semantics
>+// of the algorithm is covered in the above APIExamples test.
>+//
>+TEST(StrJoin, PublicAPIOverloads) {
>+  std::vector<std::string> v = {"a", "b", "c"};
>+
>+  // Iterators + formatter
>+  EXPECT_EQ("a-b-c",
>+            absl::StrJoin(v.begin(), v.end(), "-", absl::AlphaNumFormatter()));
>+  // Range + formatter
>+  EXPECT_EQ("a-b-c", absl::StrJoin(v, "-", absl::AlphaNumFormatter()));
>+  // Iterators, no formatter
>+  EXPECT_EQ("a-b-c", absl::StrJoin(v.begin(), v.end(), "-"));
>+  // Range, no formatter
>+  EXPECT_EQ("a-b-c", absl::StrJoin(v, "-"));
>+}
>+
>+TEST(StrJoin, Array) {
>+  const absl::string_view a[] = {"a", "b", "c"};
>+  EXPECT_EQ("a-b-c", absl::StrJoin(a, "-"));
>+}
>+
>+TEST(StrJoin, InitializerList) {
>+  { EXPECT_EQ("a-b-c", absl::StrJoin({"a", "b", "c"}, "-")); }
>+
>+  {
>+    auto a = {"a", "b", "c"};
>+    EXPECT_EQ("a-b-c", absl::StrJoin(a, "-"));
>+  }
>+
>+  {
>+    std::initializer_list<const char*> a = {"a", "b", "c"};
>+    EXPECT_EQ("a-b-c", absl::StrJoin(a, "-"));
>+  }
>+
>+  {
>+    std::initializer_list<std::string> a = {"a", "b", "c"};
>+    EXPECT_EQ("a-b-c", absl::StrJoin(a, "-"));
>+  }
>+
>+  {
>+    std::initializer_list<absl::string_view> a = {"a", "b", "c"};
>+    EXPECT_EQ("a-b-c", absl::StrJoin(a, "-"));
>+  }
>+
>+  {
>+    // Tests initializer_list with a non-default formatter
>+    auto a = {"a", "b", "c"};
>+    TestingParenFormatter f;
>+    EXPECT_EQ("(a)-(b)-(c)", absl::StrJoin(a, "-", f));
>+  }
>+
>+  {
>+    // initializer_list of ints
>+    EXPECT_EQ("1-2-3", absl::StrJoin({1, 2, 3}, "-"));
>+  }
>+
>+  {
>+    // Tests initializer_list of ints with a non-default formatter
>+    auto a = {1, 2, 3};
>+    TestingParenFormatter f;
>+    EXPECT_EQ("(1)-(2)-(3)", absl::StrJoin(a, "-", f));
>+  }
>+}
>+
>+TEST(StrJoin, Tuple) {
>+  EXPECT_EQ("", absl::StrJoin(std::make_tuple(), "-"));
>+  EXPECT_EQ("hello", absl::StrJoin(std::make_tuple("hello"), "-"));
>+
>+  int x(10);
>+  std::string y("hello");
>+  double z(3.14);
>+  EXPECT_EQ("10-hello-3.14", absl::StrJoin(std::make_tuple(x, y, z), "-"));
>+
>+  // Faster! Faster!!
>+  EXPECT_EQ("10-hello-3.14",
>+            absl::StrJoin(std::make_tuple(x, std::cref(y), z), "-"));
>+
>+  struct TestFormatter {
>+    char buffer[128];
>+    void operator()(std::string* out, int v) {
>+      snprintf(buffer, sizeof(buffer), "%#.8x", v);
>+      out->append(buffer);
>+    }
>+    void operator()(std::string* out, double v) {
>+      snprintf(buffer, sizeof(buffer), "%#.0f", v);
>+      out->append(buffer);
>+    }
>+    void operator()(std::string* out, const std::string& v) {
>+      snprintf(buffer, sizeof(buffer), "%.4s", v.c_str());
>+      out->append(buffer);
>+    }
>+  };
>+  EXPECT_EQ("0x0000000a-hell-3.",
>+            absl::StrJoin(std::make_tuple(x, y, z), "-", TestFormatter()));
>+  EXPECT_EQ(
>+      "0x0000000a-hell-3.",
>+      absl::StrJoin(std::make_tuple(x, std::cref(y), z), "-", TestFormatter()));
>+  EXPECT_EQ("0x0000000a-hell-3.",
>+            absl::StrJoin(std::make_tuple(&x, &y, &z), "-",
>+                          absl::DereferenceFormatter(TestFormatter())));
>+  EXPECT_EQ("0x0000000a-hell-3.",
>+            absl::StrJoin(std::make_tuple(absl::make_unique<int>(x),
>+                                          absl::make_unique<std::string>(y),
>+                                          absl::make_unique<double>(z)),
>+                          "-", absl::DereferenceFormatter(TestFormatter())));
>+  EXPECT_EQ("0x0000000a-hell-3.",
>+            absl::StrJoin(std::make_tuple(absl::make_unique<int>(x), &y, &z),
>+                          "-", absl::DereferenceFormatter(TestFormatter())));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..69efa3571388b65441a5c15eac478f32be6b381b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.cc
>@@ -0,0 +1,79 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_replace.h"
>+
>+#include "absl/strings/str_cat.h"
>+
>+namespace absl {
>+namespace strings_internal {
>+
>+using FixedMapping =
>+    std::initializer_list<std::pair<absl::string_view, absl::string_view>>;
>+
>+// Applies the ViableSubstitutions in subs_ptr to the absl::string_view s, and
>+// stores the result in *result_ptr. Returns the number of substitutions that
>+// occurred.
>+int ApplySubstitutions(
>+    absl::string_view s,
>+    std::vector<strings_internal::ViableSubstitution>* subs_ptr,
>+    std::string* result_ptr) {
>+  auto& subs = *subs_ptr;
>+  int substitutions = 0;
>+  size_t pos = 0;
>+  while (!subs.empty()) {
>+    auto& sub = subs.back();
>+    if (sub.offset >= pos) {
>+      if (pos <= s.size()) {
>+        StrAppend(result_ptr, s.substr(pos, sub.offset - pos), sub.replacement);
>+      }
>+      pos = sub.offset + sub.old.size();
>+      substitutions += 1;
>+    }
>+    sub.offset = s.find(sub.old, pos);
>+    if (sub.offset == s.npos) {
>+      subs.pop_back();
>+    } else {
>+      // Insertion sort to ensure the last ViableSubstitution continues to be
>+      // before all the others.
>+      size_t index = subs.size();
>+      while (--index && subs[index - 1].OccursBefore(subs[index])) {
>+        std::swap(subs[index], subs[index - 1]);
>+      }
>+    }
>+  }
>+  result_ptr->append(s.data() + pos, s.size() - pos);
>+  return substitutions;
>+}
>+
>+}  // namespace strings_internal
>+
>+// We can implement this in terms of the generic StrReplaceAll, but
>+// we must specify the template overload because C++ cannot deduce the type
>+// of an initializer_list parameter to a function, and also if we don't specify
>+// the type, we just call ourselves.
>+//
>+// Note that we implement them here, rather than in the header, so that they
>+// aren't inlined.
>+
>+std::string StrReplaceAll(absl::string_view s,
>+                     strings_internal::FixedMapping replacements) {
>+  return StrReplaceAll<strings_internal::FixedMapping>(s, replacements);
>+}
>+
>+int StrReplaceAll(strings_internal::FixedMapping replacements, std::string* target) {
>+  return StrReplaceAll<strings_internal::FixedMapping>(replacements, target);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..f4d9bb9545d689762180a1a430e64b5065bcf27c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace.h
>@@ -0,0 +1,213 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: str_replace.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file defines `absl::StrReplaceAll()`, a general-purpose std::string
>+// replacement function designed for large, arbitrary text substitutions,
>+// especially on strings which you are receiving from some other system for
>+// further processing (e.g. processing regular expressions, escaping HTML
>+// entities, etc. `StrReplaceAll` is designed to be efficient even when only
>+// one substitution is being performed, or when substitution is rare.
>+//
>+// If the std::string being modified is known at compile-time, and the substitutions
>+// vary, `absl::Substitute()` may be a better choice.
>+//
>+// Example:
>+//
>+// std::string html_escaped = absl::StrReplaceAll(user_input, {
>+//                                           {"&", "&amp;"},
>+//                                           {"<", "&lt;"},
>+//                                           {">", "&gt;"},
>+//                                           {"\"", "&quot;"},
>+//                                           {"'", "&#39;"}});
>+#ifndef ABSL_STRINGS_STR_REPLACE_H_
>+#define ABSL_STRINGS_STR_REPLACE_H_
>+
>+#include <string>
>+#include <utility>
>+#include <vector>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// StrReplaceAll()
>+//
>+// Replaces character sequences within a given std::string with replacements provided
>+// within an initializer list of key/value pairs. Candidate replacements are
>+// considered in order as they occur within the std::string, with earlier matches
>+// taking precedence, and longer matches taking precedence for candidates
>+// starting at the same position in the std::string. Once a substitution is made, the
>+// replaced text is not considered for any further substitutions.
>+//
>+// Example:
>+//
>+//   std::string s = absl::StrReplaceAll("$who bought $count #Noun. Thanks $who!",
>+//                                  {{"$count", absl::StrCat(5)},
>+//                                   {"$who", "Bob"},
>+//                                   {"#Noun", "Apples"}});
>+//   EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+ABSL_MUST_USE_RESULT std::string StrReplaceAll(
>+    absl::string_view s,
>+    std::initializer_list<std::pair<absl::string_view, absl::string_view>>
>+        replacements);
>+
>+// Overload of `StrReplaceAll()` to accept a container of key/value replacement
>+// pairs (typically either an associative map or a `std::vector` of `std::pair`
>+// elements). A vector of pairs is generally more efficient.
>+//
>+// Examples:
>+//
>+//   std::map<const absl::string_view, const absl::string_view> replacements;
>+//   replacements["$who"] = "Bob";
>+//   replacements["$count"] = "5";
>+//   replacements["#Noun"] = "Apples";
>+//   std::string s = absl::StrReplaceAll("$who bought $count #Noun. Thanks $who!",
>+//                                  replacements);
>+//   EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+//
>+//   // A std::vector of std::pair elements can be more efficient.
>+//   std::vector<std::pair<const absl::string_view, std::string>> replacements;
>+//   replacements.push_back({"&", "&amp;"});
>+//   replacements.push_back({"<", "&lt;"});
>+//   replacements.push_back({">", "&gt;"});
>+//   std::string s = absl::StrReplaceAll("if (ptr < &foo)",
>+//                                  replacements);
>+//   EXPECT_EQ("if (ptr &lt; &amp;foo)", s);
>+template <typename StrToStrMapping>
>+std::string StrReplaceAll(absl::string_view s, const StrToStrMapping& replacements);
>+
>+// Overload of `StrReplaceAll()` to replace character sequences within a given
>+// output std::string *in place* with replacements provided within an initializer
>+// list of key/value pairs, returning the number of substitutions that occurred.
>+//
>+// Example:
>+//
>+//   std::string s = std::string("$who bought $count #Noun. Thanks $who!");
>+//   int count;
>+//   count = absl::StrReplaceAll({{"$count", absl::StrCat(5)},
>+//                               {"$who", "Bob"},
>+//                               {"#Noun", "Apples"}}, &s);
>+//  EXPECT_EQ(count, 4);
>+//  EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+int StrReplaceAll(
>+    std::initializer_list<std::pair<absl::string_view, absl::string_view>>
>+        replacements,
>+    std::string* target);
>+
>+// Overload of `StrReplaceAll()` to replace patterns within a given output
>+// std::string *in place* with replacements provided within a container of key/value
>+// pairs.
>+//
>+// Example:
>+//
>+//   std::string s = std::string("if (ptr < &foo)");
>+//   int count = absl::StrReplaceAll({{"&", "&amp;"},
>+//                                    {"<", "&lt;"},
>+//                                    {">", "&gt;"}}, &s);
>+//  EXPECT_EQ(count, 2);
>+//  EXPECT_EQ("if (ptr &lt; &amp;foo)", s);
>+template <typename StrToStrMapping>
>+int StrReplaceAll(const StrToStrMapping& replacements, std::string* target);
>+
>+// Implementation details only, past this point.
>+namespace strings_internal {
>+
>+struct ViableSubstitution {
>+  absl::string_view old;
>+  absl::string_view replacement;
>+  size_t offset;
>+
>+  ViableSubstitution(absl::string_view old_str,
>+                     absl::string_view replacement_str, size_t offset_val)
>+      : old(old_str), replacement(replacement_str), offset(offset_val) {}
>+
>+  // One substitution occurs "before" another (takes priority) if either
>+  // it has the lowest offset, or it has the same offset but a larger size.
>+  bool OccursBefore(const ViableSubstitution& y) const {
>+    if (offset != y.offset) return offset < y.offset;
>+    return old.size() > y.old.size();
>+  }
>+};
>+
>+// Build a vector of ViableSubstitutions based on the given list of
>+// replacements. subs can be implemented as a priority_queue. However, it turns
>+// out that most callers have small enough a list of substitutions that the
>+// overhead of such a queue isn't worth it.
>+template <typename StrToStrMapping>
>+std::vector<ViableSubstitution> FindSubstitutions(
>+    absl::string_view s, const StrToStrMapping& replacements) {
>+  std::vector<ViableSubstitution> subs;
>+  subs.reserve(replacements.size());
>+
>+  for (const auto& rep : replacements) {
>+    using std::get;
>+    absl::string_view old(get<0>(rep));
>+
>+    size_t pos = s.find(old);
>+    if (pos == s.npos) continue;
>+
>+    // Ignore attempts to replace "". This condition is almost never true,
>+    // but above condition is frequently true. That's why we test for this
>+    // now and not before.
>+    if (old.empty()) continue;
>+
>+    subs.emplace_back(old, get<1>(rep), pos);
>+
>+    // Insertion sort to ensure the last ViableSubstitution comes before
>+    // all the others.
>+    size_t index = subs.size();
>+    while (--index && subs[index - 1].OccursBefore(subs[index])) {
>+      std::swap(subs[index], subs[index - 1]);
>+    }
>+  }
>+  return subs;
>+}
>+
>+int ApplySubstitutions(absl::string_view s,
>+                       std::vector<ViableSubstitution>* subs_ptr,
>+                       std::string* result_ptr);
>+
>+}  // namespace strings_internal
>+
>+template <typename StrToStrMapping>
>+std::string StrReplaceAll(absl::string_view s, const StrToStrMapping& replacements) {
>+  auto subs = strings_internal::FindSubstitutions(s, replacements);
>+  std::string result;
>+  result.reserve(s.size());
>+  strings_internal::ApplySubstitutions(s, &subs, &result);
>+  return result;
>+}
>+
>+template <typename StrToStrMapping>
>+int StrReplaceAll(const StrToStrMapping& replacements, std::string* target) {
>+  auto subs = strings_internal::FindSubstitutions(*target, replacements);
>+  if (subs.empty()) return 0;
>+
>+  std::string result;
>+  result.reserve(target->size());
>+  int substitutions =
>+      strings_internal::ApplySubstitutions(*target, &subs, &result);
>+  target->swap(result);
>+  return substitutions;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STR_REPLACE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e608de8d19e41ba73c3d54ffa37643c72be802db
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_benchmark.cc
>@@ -0,0 +1,122 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_replace.h"
>+
>+#include <cstring>
>+#include <string>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace {
>+
>+std::string* big_string;
>+std::string* after_replacing_the;
>+std::string* after_replacing_many;
>+
>+struct Replacement {
>+  const char* needle;
>+  const char* replacement;
>+} replacements[] = {
>+    {"the", "box"},          //
>+    {"brown", "quick"},      //
>+    {"jumped", "liquored"},  //
>+    {"dozen", "brown"},      //
>+    {"lazy", "pack"},        //
>+    {"liquor", "shakes"},    //
>+};
>+
>+// Here, we set up a std::string for use in global-replace benchmarks.
>+// We started with a million blanks, and then deterministically insert
>+// 10,000 copies each of two pangrams.  The result is a std::string that is
>+// 40% blank space and 60% these words.  'the' occurs 18,247 times and
>+// all the substitutions together occur 49,004 times.
>+//
>+// We then create "after_replacing_the" to be a std::string that is a result of
>+// replacing "the" with "box" in big_string.
>+//
>+// And then we create "after_replacing_many" to be a std::string that is result
>+// of preferring several substitutions.
>+void SetUpStrings() {
>+  if (big_string == nullptr) {
>+    size_t r = 0;
>+    big_string = new std::string(1000 * 1000, ' ');
>+    for (std::string phrase : {"the quick brown fox jumped over the lazy dogs",
>+                          "pack my box with the five dozen liquor jugs"}) {
>+      for (int i = 0; i < 10 * 1000; ++i) {
>+        r = r * 237 + 41;  // not very random.
>+        memcpy(&(*big_string)[r % (big_string->size() - phrase.size())],
>+               phrase.data(), phrase.size());
>+      }
>+    }
>+    // big_string->resize(50);
>+    // OK, we've set up the std::string, now let's set up expectations - first by
>+    // just replacing "the" with "box"
>+    after_replacing_the = new std::string(*big_string);
>+    for (size_t pos = 0;
>+         (pos = after_replacing_the->find("the", pos)) != std::string::npos;) {
>+      memcpy(&(*after_replacing_the)[pos], "box", 3);
>+    }
>+    // And then with all the replacements.
>+    after_replacing_many = new std::string(*big_string);
>+    for (size_t pos = 0;;) {
>+      size_t next_pos = static_cast<size_t>(-1);
>+      const char* needle_string = nullptr;
>+      const char* replacement_string = nullptr;
>+      for (const auto& r : replacements) {
>+        auto needlepos = after_replacing_many->find(r.needle, pos);
>+        if (needlepos != std::string::npos && needlepos < next_pos) {
>+          next_pos = needlepos;
>+          needle_string = r.needle;
>+          replacement_string = r.replacement;
>+        }
>+      }
>+      if (next_pos > after_replacing_many->size()) break;
>+      after_replacing_many->replace(next_pos, strlen(needle_string),
>+                                    replacement_string);
>+      next_pos += strlen(replacement_string);
>+      pos = next_pos;
>+    }
>+  }
>+}
>+
>+void BM_StrReplaceAllOneReplacement(benchmark::State& state) {
>+  SetUpStrings();
>+  std::string src = *big_string;
>+  for (auto _ : state) {
>+    std::string dest = absl::StrReplaceAll(src, {{"the", "box"}});
>+    ABSL_RAW_CHECK(dest == *after_replacing_the,
>+                   "not benchmarking intended behavior");
>+  }
>+}
>+BENCHMARK(BM_StrReplaceAllOneReplacement);
>+
>+void BM_StrReplaceAll(benchmark::State& state) {
>+  SetUpStrings();
>+  std::string src = *big_string;
>+  for (auto _ : state) {
>+    std::string dest = absl::StrReplaceAll(src, {{"the", "box"},
>+                                            {"brown", "quick"},
>+                                            {"jumped", "liquored"},
>+                                            {"dozen", "brown"},
>+                                            {"lazy", "pack"},
>+                                            {"liquor", "shakes"}});
>+    ABSL_RAW_CHECK(dest == *after_replacing_many,
>+                   "not benchmarking intended behavior");
>+  }
>+}
>+BENCHMARK(BM_StrReplaceAll);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..5d003a224a4fa888504573150f0641add4014064
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_replace_test.cc
>@@ -0,0 +1,341 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_replace.h"
>+
>+#include <list>
>+#include <map>
>+#include <tuple>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_cat.h"
>+#include "absl/strings/str_split.h"
>+
>+TEST(StrReplaceAll, OneReplacement) {
>+  std::string s;
>+
>+  // Empty std::string.
>+  s = absl::StrReplaceAll(s, {{"", ""}});
>+  EXPECT_EQ(s, "");
>+  s = absl::StrReplaceAll(s, {{"x", ""}});
>+  EXPECT_EQ(s, "");
>+  s = absl::StrReplaceAll(s, {{"", "y"}});
>+  EXPECT_EQ(s, "");
>+  s = absl::StrReplaceAll(s, {{"x", "y"}});
>+  EXPECT_EQ(s, "");
>+
>+  // Empty substring.
>+  s = absl::StrReplaceAll("abc", {{"", ""}});
>+  EXPECT_EQ(s, "abc");
>+  s = absl::StrReplaceAll("abc", {{"", "y"}});
>+  EXPECT_EQ(s, "abc");
>+  s = absl::StrReplaceAll("abc", {{"x", ""}});
>+  EXPECT_EQ(s, "abc");
>+
>+  // Substring not found.
>+  s = absl::StrReplaceAll("abc", {{"xyz", "123"}});
>+  EXPECT_EQ(s, "abc");
>+
>+  // Replace entire std::string.
>+  s = absl::StrReplaceAll("abc", {{"abc", "xyz"}});
>+  EXPECT_EQ(s, "xyz");
>+
>+  // Replace once at the start.
>+  s = absl::StrReplaceAll("abc", {{"a", "x"}});
>+  EXPECT_EQ(s, "xbc");
>+
>+  // Replace once in the middle.
>+  s = absl::StrReplaceAll("abc", {{"b", "x"}});
>+  EXPECT_EQ(s, "axc");
>+
>+  // Replace once at the end.
>+  s = absl::StrReplaceAll("abc", {{"c", "x"}});
>+  EXPECT_EQ(s, "abx");
>+
>+  // Replace multiple times with varying lengths of original/replacement.
>+  s = absl::StrReplaceAll("ababa", {{"a", "xxx"}});
>+  EXPECT_EQ(s, "xxxbxxxbxxx");
>+
>+  s = absl::StrReplaceAll("ababa", {{"b", "xxx"}});
>+  EXPECT_EQ(s, "axxxaxxxa");
>+
>+  s = absl::StrReplaceAll("aaabaaabaaa", {{"aaa", "x"}});
>+  EXPECT_EQ(s, "xbxbx");
>+
>+  s = absl::StrReplaceAll("abbbabbba", {{"bbb", "x"}});
>+  EXPECT_EQ(s, "axaxa");
>+
>+  // Overlapping matches are replaced greedily.
>+  s = absl::StrReplaceAll("aaa", {{"aa", "x"}});
>+  EXPECT_EQ(s, "xa");
>+
>+  // The replacements are not recursive.
>+  s = absl::StrReplaceAll("aaa", {{"aa", "a"}});
>+  EXPECT_EQ(s, "aa");
>+}
>+
>+TEST(StrReplaceAll, ManyReplacements) {
>+  std::string s;
>+
>+  // Empty std::string.
>+  s = absl::StrReplaceAll("", {{"", ""}, {"x", ""}, {"", "y"}, {"x", "y"}});
>+  EXPECT_EQ(s, "");
>+
>+  // Empty substring.
>+  s = absl::StrReplaceAll("abc", {{"", ""}, {"", "y"}, {"x", ""}});
>+  EXPECT_EQ(s, "abc");
>+
>+  // Replace entire std::string, one char at a time
>+  s = absl::StrReplaceAll("abc", {{"a", "x"}, {"b", "y"}, {"c", "z"}});
>+  EXPECT_EQ(s, "xyz");
>+  s = absl::StrReplaceAll("zxy", {{"z", "x"}, {"x", "y"}, {"y", "z"}});
>+  EXPECT_EQ(s, "xyz");
>+
>+  // Replace once at the start (longer matches take precedence)
>+  s = absl::StrReplaceAll("abc", {{"a", "x"}, {"ab", "xy"}, {"abc", "xyz"}});
>+  EXPECT_EQ(s, "xyz");
>+
>+  // Replace once in the middle.
>+  s = absl::StrReplaceAll(
>+      "Abc!", {{"a", "x"}, {"ab", "xy"}, {"b", "y"}, {"bc", "yz"}, {"c", "z"}});
>+  EXPECT_EQ(s, "Ayz!");
>+
>+  // Replace once at the end.
>+  s = absl::StrReplaceAll(
>+      "Abc!",
>+      {{"a", "x"}, {"ab", "xy"}, {"b", "y"}, {"bc!", "yz?"}, {"c!", "z;"}});
>+  EXPECT_EQ(s, "Ayz?");
>+
>+  // Replace multiple times with varying lengths of original/replacement.
>+  s = absl::StrReplaceAll("ababa", {{"a", "xxx"}, {"b", "XXXX"}});
>+  EXPECT_EQ(s, "xxxXXXXxxxXXXXxxx");
>+
>+  // Overlapping matches are replaced greedily.
>+  s = absl::StrReplaceAll("aaa", {{"aa", "x"}, {"a", "X"}});
>+  EXPECT_EQ(s, "xX");
>+  s = absl::StrReplaceAll("aaa", {{"a", "X"}, {"aa", "x"}});
>+  EXPECT_EQ(s, "xX");
>+
>+  // Two well-known sentences
>+  s = absl::StrReplaceAll("the quick brown fox jumped over the lazy dogs",
>+                          {
>+                              {"brown", "box"},
>+                              {"dogs", "jugs"},
>+                              {"fox", "with"},
>+                              {"jumped", "five"},
>+                              {"over", "dozen"},
>+                              {"quick", "my"},
>+                              {"the", "pack"},
>+                              {"the lazy", "liquor"},
>+                          });
>+  EXPECT_EQ(s, "pack my box with five dozen liquor jugs");
>+}
>+
>+TEST(StrReplaceAll, ManyReplacementsInMap) {
>+  std::map<const char *, const char *> replacements;
>+  replacements["$who"] = "Bob";
>+  replacements["$count"] = "5";
>+  replacements["#Noun"] = "Apples";
>+  std::string s = absl::StrReplaceAll("$who bought $count #Noun. Thanks $who!",
>+                                 replacements);
>+  EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+}
>+
>+TEST(StrReplaceAll, ReplacementsInPlace) {
>+  std::string s = std::string("$who bought $count #Noun. Thanks $who!");
>+  int count;
>+  count = absl::StrReplaceAll({{"$count", absl::StrCat(5)},
>+                              {"$who", "Bob"},
>+                              {"#Noun", "Apples"}}, &s);
>+  EXPECT_EQ(count, 4);
>+  EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+}
>+
>+TEST(StrReplaceAll, ReplacementsInPlaceInMap) {
>+  std::string s = std::string("$who bought $count #Noun. Thanks $who!");
>+  std::map<absl::string_view, absl::string_view> replacements;
>+  replacements["$who"] = "Bob";
>+  replacements["$count"] = "5";
>+  replacements["#Noun"] = "Apples";
>+  int count;
>+  count = absl::StrReplaceAll(replacements, &s);
>+  EXPECT_EQ(count, 4);
>+  EXPECT_EQ("Bob bought 5 Apples. Thanks Bob!", s);
>+}
>+
>+struct Cont {
>+  Cont() {}
>+  explicit Cont(absl::string_view src) : data(src) {}
>+
>+  absl::string_view data;
>+};
>+
>+template <int index>
>+absl::string_view get(const Cont& c) {
>+  auto splitter = absl::StrSplit(c.data, ':');
>+  auto it = splitter.begin();
>+  for (int i = 0; i < index; ++i) ++it;
>+
>+  return *it;
>+}
>+
>+TEST(StrReplaceAll, VariableNumber) {
>+  std::string s;
>+  {
>+    std::vector<std::pair<std::string, std::string>> replacements;
>+
>+    s = "abc";
>+    EXPECT_EQ(0, absl::StrReplaceAll(replacements, &s));
>+    EXPECT_EQ("abc", s);
>+
>+    s = "abc";
>+    replacements.push_back({"a", "A"});
>+    EXPECT_EQ(1, absl::StrReplaceAll(replacements, &s));
>+    EXPECT_EQ("Abc", s);
>+
>+    s = "abc";
>+    replacements.push_back({"b", "B"});
>+    EXPECT_EQ(2, absl::StrReplaceAll(replacements, &s));
>+    EXPECT_EQ("ABc", s);
>+
>+    s = "abc";
>+    replacements.push_back({"d", "D"});
>+    EXPECT_EQ(2, absl::StrReplaceAll(replacements, &s));
>+    EXPECT_EQ("ABc", s);
>+
>+    EXPECT_EQ("ABcABc", absl::StrReplaceAll("abcabc", replacements));
>+  }
>+
>+  {
>+    std::map<const char*, const char*> replacements;
>+    replacements["aa"] = "x";
>+    replacements["a"] = "X";
>+    s = "aaa";
>+    EXPECT_EQ(2, absl::StrReplaceAll(replacements, &s));
>+    EXPECT_EQ("xX", s);
>+
>+    EXPECT_EQ("xxX", absl::StrReplaceAll("aaaaa", replacements));
>+  }
>+
>+  {
>+    std::list<std::pair<absl::string_view, absl::string_view>> replacements = {
>+        {"a", "x"}, {"b", "y"}, {"c", "z"}};
>+
>+    std::string s = absl::StrReplaceAll("abc", replacements);
>+    EXPECT_EQ(s, "xyz");
>+  }
>+
>+  {
>+    using X = std::tuple<absl::string_view, std::string, int>;
>+    std::vector<X> replacements(3);
>+    replacements[0] = X{"a", "x", 1};
>+    replacements[1] = X{"b", "y", 0};
>+    replacements[2] = X{"c", "z", -1};
>+
>+    std::string s = absl::StrReplaceAll("abc", replacements);
>+    EXPECT_EQ(s, "xyz");
>+  }
>+
>+  {
>+    std::vector<Cont> replacements(3);
>+    replacements[0] = Cont{"a:x"};
>+    replacements[1] = Cont{"b:y"};
>+    replacements[2] = Cont{"c:z"};
>+
>+    std::string s = absl::StrReplaceAll("abc", replacements);
>+    EXPECT_EQ(s, "xyz");
>+  }
>+}
>+
>+// Same as above, but using the in-place variant of absl::StrReplaceAll,
>+// that returns the # of replacements performed.
>+TEST(StrReplaceAll, Inplace) {
>+  std::string s;
>+  int reps;
>+
>+  // Empty std::string.
>+  s = "";
>+  reps = absl::StrReplaceAll({{"", ""}, {"x", ""}, {"", "y"}, {"x", "y"}}, &s);
>+  EXPECT_EQ(reps, 0);
>+  EXPECT_EQ(s, "");
>+
>+  // Empty substring.
>+  s = "abc";
>+  reps = absl::StrReplaceAll({{"", ""}, {"", "y"}, {"x", ""}}, &s);
>+  EXPECT_EQ(reps, 0);
>+  EXPECT_EQ(s, "abc");
>+
>+  // Replace entire std::string, one char at a time
>+  s = "abc";
>+  reps = absl::StrReplaceAll({{"a", "x"}, {"b", "y"}, {"c", "z"}}, &s);
>+  EXPECT_EQ(reps, 3);
>+  EXPECT_EQ(s, "xyz");
>+  s = "zxy";
>+  reps = absl::StrReplaceAll({{"z", "x"}, {"x", "y"}, {"y", "z"}}, &s);
>+  EXPECT_EQ(reps, 3);
>+  EXPECT_EQ(s, "xyz");
>+
>+  // Replace once at the start (longer matches take precedence)
>+  s = "abc";
>+  reps = absl::StrReplaceAll({{"a", "x"}, {"ab", "xy"}, {"abc", "xyz"}}, &s);
>+  EXPECT_EQ(reps, 1);
>+  EXPECT_EQ(s, "xyz");
>+
>+  // Replace once in the middle.
>+  s = "Abc!";
>+  reps = absl::StrReplaceAll(
>+      {{"a", "x"}, {"ab", "xy"}, {"b", "y"}, {"bc", "yz"}, {"c", "z"}}, &s);
>+  EXPECT_EQ(reps, 1);
>+  EXPECT_EQ(s, "Ayz!");
>+
>+  // Replace once at the end.
>+  s = "Abc!";
>+  reps = absl::StrReplaceAll(
>+      {{"a", "x"}, {"ab", "xy"}, {"b", "y"}, {"bc!", "yz?"}, {"c!", "z;"}}, &s);
>+  EXPECT_EQ(reps, 1);
>+  EXPECT_EQ(s, "Ayz?");
>+
>+  // Replace multiple times with varying lengths of original/replacement.
>+  s = "ababa";
>+  reps = absl::StrReplaceAll({{"a", "xxx"}, {"b", "XXXX"}}, &s);
>+  EXPECT_EQ(reps, 5);
>+  EXPECT_EQ(s, "xxxXXXXxxxXXXXxxx");
>+
>+  // Overlapping matches are replaced greedily.
>+  s = "aaa";
>+  reps = absl::StrReplaceAll({{"aa", "x"}, {"a", "X"}}, &s);
>+  EXPECT_EQ(reps, 2);
>+  EXPECT_EQ(s, "xX");
>+  s = "aaa";
>+  reps = absl::StrReplaceAll({{"a", "X"}, {"aa", "x"}}, &s);
>+  EXPECT_EQ(reps, 2);
>+  EXPECT_EQ(s, "xX");
>+
>+  // Two well-known sentences
>+  s = "the quick brown fox jumped over the lazy dogs";
>+  reps = absl::StrReplaceAll(
>+      {
>+          {"brown", "box"},
>+          {"dogs", "jugs"},
>+          {"fox", "with"},
>+          {"jumped", "five"},
>+          {"over", "dozen"},
>+          {"quick", "my"},
>+          {"the", "pack"},
>+          {"the lazy", "liquor"},
>+      },
>+      &s);
>+  EXPECT_EQ(reps, 8);
>+  EXPECT_EQ(s, "pack my box with five dozen liquor jugs");
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0207213c26baf913d9981497943d7867a1cdeeea
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.cc
>@@ -0,0 +1,136 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_split.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cstdint>
>+#include <cstdlib>
>+#include <cstring>
>+#include <iterator>
>+#include <limits>
>+#include <memory>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/ascii.h"
>+
>+namespace absl {
>+
>+namespace {
>+
>+// This GenericFind() template function encapsulates the finding algorithm
>+// shared between the ByString and ByAnyChar delimiters. The FindPolicy
>+// template parameter allows each delimiter to customize the actual find
>+// function to use and the length of the found delimiter. For example, the
>+// Literal delimiter will ultimately use absl::string_view::find(), and the
>+// AnyOf delimiter will use absl::string_view::find_first_of().
>+template <typename FindPolicy>
>+absl::string_view GenericFind(absl::string_view text,
>+                              absl::string_view delimiter, size_t pos,
>+                              FindPolicy find_policy) {
>+  if (delimiter.empty() && text.length() > 0) {
>+    // Special case for empty std::string delimiters: always return a zero-length
>+    // absl::string_view referring to the item at position 1 past pos.
>+    return absl::string_view(text.begin() + pos + 1, 0);
>+  }
>+  size_t found_pos = absl::string_view::npos;
>+  absl::string_view found(text.end(), 0);  // By default, not found
>+  found_pos = find_policy.Find(text, delimiter, pos);
>+  if (found_pos != absl::string_view::npos) {
>+    found = absl::string_view(text.data() + found_pos,
>+                              find_policy.Length(delimiter));
>+  }
>+  return found;
>+}
>+
>+// Finds using absl::string_view::find(), therefore the length of the found
>+// delimiter is delimiter.length().
>+struct LiteralPolicy {
>+  size_t Find(absl::string_view text, absl::string_view delimiter, size_t pos) {
>+    return text.find(delimiter, pos);
>+  }
>+  size_t Length(absl::string_view delimiter) { return delimiter.length(); }
>+};
>+
>+// Finds using absl::string_view::find_first_of(), therefore the length of the
>+// found delimiter is 1.
>+struct AnyOfPolicy {
>+  size_t Find(absl::string_view text, absl::string_view delimiter, size_t pos) {
>+    return text.find_first_of(delimiter, pos);
>+  }
>+  size_t Length(absl::string_view /* delimiter */) { return 1; }
>+};
>+
>+}  // namespace
>+
>+//
>+// ByString
>+//
>+
>+ByString::ByString(absl::string_view sp) : delimiter_(sp) {}
>+
>+absl::string_view ByString::Find(absl::string_view text, size_t pos) const {
>+  if (delimiter_.length() == 1) {
>+    // Much faster to call find on a single character than on an
>+    // absl::string_view.
>+    size_t found_pos = text.find(delimiter_[0], pos);
>+    if (found_pos == absl::string_view::npos)
>+      return absl::string_view(text.end(), 0);
>+    return text.substr(found_pos, 1);
>+  }
>+  return GenericFind(text, delimiter_, pos, LiteralPolicy());
>+}
>+
>+//
>+// ByChar
>+//
>+
>+absl::string_view ByChar::Find(absl::string_view text, size_t pos) const {
>+  size_t found_pos = text.find(c_, pos);
>+  if (found_pos == absl::string_view::npos)
>+    return absl::string_view(text.end(), 0);
>+  return text.substr(found_pos, 1);
>+}
>+
>+//
>+// ByAnyChar
>+//
>+
>+ByAnyChar::ByAnyChar(absl::string_view sp) : delimiters_(sp) {}
>+
>+absl::string_view ByAnyChar::Find(absl::string_view text, size_t pos) const {
>+  return GenericFind(text, delimiters_, pos, AnyOfPolicy());
>+}
>+
>+//
>+// ByLength
>+//
>+ByLength::ByLength(ptrdiff_t length) : length_(length) {
>+  ABSL_RAW_CHECK(length > 0, "");
>+}
>+
>+absl::string_view ByLength::Find(absl::string_view text,
>+                                      size_t pos) const {
>+  pos = std::min(pos, text.size());  // truncate `pos`
>+  absl::string_view substr = text.substr(pos);
>+  // If the std::string is shorter than the chunk size we say we
>+  // "can't find the delimiter" so this will be the last chunk.
>+  if (substr.length() <= static_cast<size_t>(length_))
>+    return absl::string_view(text.end(), 0);
>+
>+  return absl::string_view(substr.begin() + length_, 0);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..9a7be2b0534425872c25e986aebc21db7e7fb756
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split.h
>@@ -0,0 +1,511 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: str_split.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains functions for splitting strings. It defines the main
>+// `StrSplit()` function, several delimiters for determining the boundaries on
>+// which to split the std::string, and predicates for filtering delimited results.
>+// `StrSplit()` adapts the returned collection to the type specified by the
>+// caller.
>+//
>+// Example:
>+//
>+//   // Splits the given std::string on commas. Returns the results in a
>+//   // vector of strings.
>+//   std::vector<std::string> v = absl::StrSplit("a,b,c", ',');
>+//   // Can also use ","
>+//   // v[0] == "a", v[1] == "b", v[2] == "c"
>+//
>+// See StrSplit() below for more information.
>+#ifndef ABSL_STRINGS_STR_SPLIT_H_
>+#define ABSL_STRINGS_STR_SPLIT_H_
>+
>+#include <algorithm>
>+#include <cstddef>
>+#include <map>
>+#include <set>
>+#include <string>
>+#include <utility>
>+#include <vector>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/internal/str_split_internal.h"
>+#include "absl/strings/string_view.h"
>+#include "absl/strings/strip.h"
>+
>+namespace absl {
>+
>+//------------------------------------------------------------------------------
>+// Delimiters
>+//------------------------------------------------------------------------------
>+//
>+// `StrSplit()` uses delimiters to define the boundaries between elements in the
>+// provided input. Several `Delimiter` types are defined below. If a std::string
>+// (`const char*`, `std::string`, or `absl::string_view`) is passed in place of
>+// an explicit `Delimiter` object, `StrSplit()` treats it the same way as if it
>+// were passed a `ByString` delimiter.
>+//
>+// A `Delimiter` is an object with a `Find()` function that knows how to find
>+// the first occurrence of itself in a given `absl::string_view`.
>+//
>+// The following `Delimiter` types are available for use within `StrSplit()`:
>+//
>+//   - `ByString` (default for std::string arguments)
>+//   - `ByChar` (default for a char argument)
>+//   - `ByAnyChar`
>+//   - `ByLength`
>+//   - `MaxSplits`
>+//
>+//
>+// A Delimiter's Find() member function will be passed the input text that is to
>+// be split and the position to begin searching for the next delimiter in the
>+// input text. The returned absl::string_view should refer to the next
>+// occurrence (after pos) of the represented delimiter; this returned
>+// absl::string_view represents the next location where the input std::string should
>+// be broken. The returned absl::string_view may be zero-length if the Delimiter
>+// does not represent a part of the std::string (e.g., a fixed-length delimiter). If
>+// no delimiter is found in the given text, a zero-length absl::string_view
>+// referring to text.end() should be returned (e.g.,
>+// absl::string_view(text.end(), 0)). It is important that the returned
>+// absl::string_view always be within the bounds of input text given as an
>+// argument--it must not refer to a std::string that is physically located outside of
>+// the given std::string.
>+//
>+// The following example is a simple Delimiter object that is created with a
>+// single char and will look for that char in the text passed to the Find()
>+// function:
>+//
>+//   struct SimpleDelimiter {
>+//     const char c_;
>+//     explicit SimpleDelimiter(char c) : c_(c) {}
>+//     absl::string_view Find(absl::string_view text, size_t pos) {
>+//       auto found = text.find(c_, pos);
>+//       if (found == absl::string_view::npos)
>+//         return absl::string_view(text.end(), 0);
>+//
>+//       return absl::string_view(text, found, 1);
>+//     }
>+//   };
>+
>+// ByString
>+//
>+// A sub-std::string delimiter. If `StrSplit()` is passed a std::string in place of a
>+// `Delimiter` object, the std::string will be implicitly converted into a
>+// `ByString` delimiter.
>+//
>+// Example:
>+//
>+//   // Because a std::string literal is converted to an `absl::ByString`,
>+//   // the following two splits are equivalent.
>+//
>+//   std::vector<std::string> v1 = absl::StrSplit("a, b, c", ", ");
>+//
>+//   using absl::ByString;
>+//   std::vector<std::string> v2 = absl::StrSplit("a, b, c",
>+//                                                ByString(", "));
>+//   // v[0] == "a", v[1] == "b", v[2] == "c"
>+class ByString {
>+ public:
>+  explicit ByString(absl::string_view sp);
>+  absl::string_view Find(absl::string_view text, size_t pos) const;
>+
>+ private:
>+  const std::string delimiter_;
>+};
>+
>+// ByChar
>+//
>+// A single character delimiter. `ByChar` is functionally equivalent to a
>+// 1-char std::string within a `ByString` delimiter, but slightly more
>+// efficient.
>+//
>+// Example:
>+//
>+//   // Because a char literal is converted to a absl::ByChar,
>+//   // the following two splits are equivalent.
>+//   std::vector<std::string> v1 = absl::StrSplit("a,b,c", ',');
>+//   using absl::ByChar;
>+//   std::vector<std::string> v2 = absl::StrSplit("a,b,c", ByChar(','));
>+//   // v[0] == "a", v[1] == "b", v[2] == "c"
>+//
>+// `ByChar` is also the default delimiter if a single character is given
>+// as the delimiter to `StrSplit()`. For example, the following calls are
>+// equivalent:
>+//
>+//   std::vector<std::string> v = absl::StrSplit("a-b", '-');
>+//
>+//   using absl::ByChar;
>+//   std::vector<std::string> v = absl::StrSplit("a-b", ByChar('-'));
>+//
>+class ByChar {
>+ public:
>+  explicit ByChar(char c) : c_(c) {}
>+  absl::string_view Find(absl::string_view text, size_t pos) const;
>+
>+ private:
>+  char c_;
>+};
>+
>+// ByAnyChar
>+//
>+// A delimiter that will match any of the given byte-sized characters within
>+// its provided std::string.
>+//
>+// Note: this delimiter works with single-byte std::string data, but does not work
>+// with variable-width encodings, such as UTF-8.
>+//
>+// Example:
>+//
>+//   using absl::ByAnyChar;
>+//   std::vector<std::string> v = absl::StrSplit("a,b=c", ByAnyChar(",="));
>+//   // v[0] == "a", v[1] == "b", v[2] == "c"
>+//
>+// If `ByAnyChar` is given the empty std::string, it behaves exactly like
>+// `ByString` and matches each individual character in the input std::string.
>+//
>+class ByAnyChar {
>+ public:
>+  explicit ByAnyChar(absl::string_view sp);
>+  absl::string_view Find(absl::string_view text, size_t pos) const;
>+
>+ private:
>+  const std::string delimiters_;
>+};
>+
>+// ByLength
>+//
>+// A delimiter for splitting into equal-length strings. The length argument to
>+// the constructor must be greater than 0.
>+//
>+// Note: this delimiter works with single-byte std::string data, but does not work
>+// with variable-width encodings, such as UTF-8.
>+//
>+// Example:
>+//
>+//   using absl::ByLength;
>+//   std::vector<std::string> v = absl::StrSplit("123456789", ByLength(3));
>+
>+//   // v[0] == "123", v[1] == "456", v[2] == "789"
>+//
>+// Note that the std::string does not have to be a multiple of the fixed split
>+// length. In such a case, the last substring will be shorter.
>+//
>+//   using absl::ByLength;
>+//   std::vector<std::string> v = absl::StrSplit("12345", ByLength(2));
>+//
>+//   // v[0] == "12", v[1] == "34", v[2] == "5"
>+class ByLength {
>+ public:
>+  explicit ByLength(ptrdiff_t length);
>+  absl::string_view Find(absl::string_view text, size_t pos) const;
>+
>+ private:
>+  const ptrdiff_t length_;
>+};
>+
>+namespace strings_internal {
>+
>+// A traits-like metafunction for selecting the default Delimiter object type
>+// for a particular Delimiter type. The base case simply exposes type Delimiter
>+// itself as the delimiter's Type. However, there are specializations for
>+// std::string-like objects that map them to the ByString delimiter object.
>+// This allows functions like absl::StrSplit() and absl::MaxSplits() to accept
>+// std::string-like objects (e.g., ',') as delimiter arguments but they will be
>+// treated as if a ByString delimiter was given.
>+template <typename Delimiter>
>+struct SelectDelimiter {
>+  using type = Delimiter;
>+};
>+
>+template <>
>+struct SelectDelimiter<char> {
>+  using type = ByChar;
>+};
>+template <>
>+struct SelectDelimiter<char*> {
>+  using type = ByString;
>+};
>+template <>
>+struct SelectDelimiter<const char*> {
>+  using type = ByString;
>+};
>+template <>
>+struct SelectDelimiter<absl::string_view> {
>+  using type = ByString;
>+};
>+template <>
>+struct SelectDelimiter<std::string> {
>+  using type = ByString;
>+};
>+
>+// Wraps another delimiter and sets a max number of matches for that delimiter.
>+template <typename Delimiter>
>+class MaxSplitsImpl {
>+ public:
>+  MaxSplitsImpl(Delimiter delimiter, int limit)
>+      : delimiter_(delimiter), limit_(limit), count_(0) {}
>+  absl::string_view Find(absl::string_view text, size_t pos) {
>+    if (count_++ == limit_) {
>+      return absl::string_view(text.end(), 0);  // No more matches.
>+    }
>+    return delimiter_.Find(text, pos);
>+  }
>+
>+ private:
>+  Delimiter delimiter_;
>+  const int limit_;
>+  int count_;
>+};
>+
>+}  // namespace strings_internal
>+
>+// MaxSplits()
>+//
>+// A delimiter that limits the number of matches which can occur to the passed
>+// `limit`. The last element in the returned collection will contain all
>+// remaining unsplit pieces, which may contain instances of the delimiter.
>+// The collection will contain at most `limit` + 1 elements.
>+// Example:
>+//
>+//   using absl::MaxSplits;
>+//   std::vector<std::string> v = absl::StrSplit("a,b,c", MaxSplits(',', 1));
>+//
>+//   // v[0] == "a", v[1] == "b,c"
>+template <typename Delimiter>
>+inline strings_internal::MaxSplitsImpl<
>+    typename strings_internal::SelectDelimiter<Delimiter>::type>
>+MaxSplits(Delimiter delimiter, int limit) {
>+  typedef
>+      typename strings_internal::SelectDelimiter<Delimiter>::type DelimiterType;
>+  return strings_internal::MaxSplitsImpl<DelimiterType>(
>+      DelimiterType(delimiter), limit);
>+}
>+
>+//------------------------------------------------------------------------------
>+// Predicates
>+//------------------------------------------------------------------------------
>+//
>+// Predicates filter the results of a `StrSplit()` by determining whether or not
>+// a resultant element is included in the result set. A predicate may be passed
>+// as an optional third argument to the `StrSplit()` function.
>+//
>+// Predicates are unary functions (or functors) that take a single
>+// `absl::string_view` argument and return a bool indicating whether the
>+// argument should be included (`true`) or excluded (`false`).
>+//
>+// Predicates are useful when filtering out empty substrings. By default, empty
>+// substrings may be returned by `StrSplit()`, which is similar to the way split
>+// functions work in other programming languages.
>+
>+// AllowEmpty()
>+//
>+// Always returns `true`, indicating that all strings--including empty
>+// strings--should be included in the split output. This predicate is not
>+// strictly needed because this is the default behavior of `StrSplit()`;
>+// however, it might be useful at some call sites to make the intent explicit.
>+//
>+// Example:
>+//
>+//  std::vector<std::string> v = absl::StrSplit(" a , ,,b,", ',', AllowEmpty());
>+//
>+//  // v[0] == " a ", v[1] == " ", v[2] == "", v[3] = "b", v[4] == ""
>+struct AllowEmpty {
>+  bool operator()(absl::string_view) const { return true; }
>+};
>+
>+// SkipEmpty()
>+//
>+// Returns `false` if the given `absl::string_view` is empty, indicating that
>+// `StrSplit()` should omit the empty std::string.
>+//
>+// Example:
>+//
>+//   std::vector<std::string> v = absl::StrSplit(",a,,b,", ',', SkipEmpty());
>+//
>+//   // v[0] == "a", v[1] == "b"
>+//
>+// Note: `SkipEmpty()` does not consider a std::string containing only whitespace
>+// to be empty. To skip such whitespace as well, use the `SkipWhitespace()`
>+// predicate.
>+struct SkipEmpty {
>+  bool operator()(absl::string_view sp) const { return !sp.empty(); }
>+};
>+
>+// SkipWhitespace()
>+//
>+// Returns `false` if the given `absl::string_view` is empty *or* contains only
>+// whitespace, indicating that `StrSplit()` should omit the std::string.
>+//
>+// Example:
>+//
>+//   std::vector<std::string> v = absl::StrSplit(" a , ,,b,",
>+//                                               ',', SkipWhitespace());
>+//   // v[0] == " a ", v[1] == "b"
>+//
>+//   // SkipEmpty() would return whitespace elements
>+//   std::vector<std::string> v = absl::StrSplit(" a , ,,b,", ',', SkipEmpty());
>+//   // v[0] == " a ", v[1] == " ", v[2] == "b"
>+struct SkipWhitespace {
>+  bool operator()(absl::string_view sp) const {
>+    sp = absl::StripAsciiWhitespace(sp);
>+    return !sp.empty();
>+  }
>+};
>+
>+//------------------------------------------------------------------------------
>+//                                  StrSplit()
>+//------------------------------------------------------------------------------
>+
>+// StrSplit()
>+//
>+// Splits a given std::string based on the provided `Delimiter` object, returning the
>+// elements within the type specified by the caller. Optionally, you may pass a
>+// `Predicate` to `StrSplit()` indicating whether to include or exclude the
>+// resulting element within the final result set. (See the overviews for
>+// Delimiters and Predicates above.)
>+//
>+// Example:
>+//
>+//   std::vector<std::string> v = absl::StrSplit("a,b,c,d", ',');
>+//   // v[0] == "a", v[1] == "b", v[2] == "c", v[3] == "d"
>+//
>+// You can also provide an explicit `Delimiter` object:
>+//
>+// Example:
>+//
>+//   using absl::ByAnyChar;
>+//   std::vector<std::string> v = absl::StrSplit("a,b=c", ByAnyChar(",="));
>+//   // v[0] == "a", v[1] == "b", v[2] == "c"
>+//
>+// See above for more information on delimiters.
>+//
>+// By default, empty strings are included in the result set. You can optionally
>+// include a third `Predicate` argument to apply a test for whether the
>+// resultant element should be included in the result set:
>+//
>+// Example:
>+//
>+//   std::vector<std::string> v = absl::StrSplit(" a , ,,b,",
>+//                                               ',', SkipWhitespace());
>+//   // v[0] == " a ", v[1] == "b"
>+//
>+// See above for more information on predicates.
>+//
>+//------------------------------------------------------------------------------
>+// StrSplit() Return Types
>+//------------------------------------------------------------------------------
>+//
>+// The `StrSplit()` function adapts the returned collection to the collection
>+// specified by the caller (e.g. `std::vector` above). The returned collections
>+// may contain `string`, `absl::string_view` (in which case the original std::string
>+// being split must ensure that it outlives the collection), or any object that
>+// can be explicitly created from an `absl::string_view`. This behavior works
>+// for:
>+//
>+// 1) All standard STL containers including `std::vector`, `std::list`,
>+//    `std::deque`, `std::set`,`std::multiset`, 'std::map`, and `std::multimap`
>+// 2) `std::pair` (which is not actually a container). See below.
>+//
>+// Example:
>+//
>+//   // The results are returned as `absl::string_view` objects. Note that we
>+//   // have to ensure that the input std::string outlives any results.
>+//   std::vector<absl::string_view> v = absl::StrSplit("a,b,c", ',');
>+//
>+//   // Stores results in a std::set<std::string>, which also performs
>+//   // de-duplication and orders the elements in ascending order.
>+//   std::set<std::string> a = absl::StrSplit("b,a,c,a,b", ',');
>+//   // v[0] == "a", v[1] == "b", v[2] = "c"
>+//
>+//   // `StrSplit()` can be used within a range-based for loop, in which case
>+//   // each element will be of type `absl::string_view`.
>+//   std::vector<std::string> v;
>+//   for (const auto sv : absl::StrSplit("a,b,c", ',')) {
>+//     if (sv != "b") v.emplace_back(sv);
>+//   }
>+//   // v[0] == "a", v[1] == "c"
>+//
>+//   // Stores results in a map. The map implementation assumes that the input
>+//   // is provided as a series of key/value pairs. For example, the 0th element
>+//   // resulting from the split will be stored as a key to the 1st element. If
>+//   // an odd number of elements are resolved, the last element is paired with
>+//   // a default-constructed value (e.g., empty std::string).
>+//   std::map<std::string, std::string> m = absl::StrSplit("a,b,c", ',');
>+//   // m["a"] == "b", m["c"] == ""     // last component value equals ""
>+//
>+// Splitting to `std::pair` is an interesting case because it can hold only two
>+// elements and is not a collection type. When splitting to a `std::pair` the
>+// first two split strings become the `std::pair` `.first` and `.second`
>+// members, respectively. The remaining split substrings are discarded. If there
>+// are less than two split substrings, the empty std::string is used for the
>+// corresponding
>+// `std::pair` member.
>+//
>+// Example:
>+//
>+//   // Stores first two split strings as the members in a std::pair.
>+//   std::pair<std::string, std::string> p = absl::StrSplit("a,b,c", ',');
>+//   // p.first == "a", p.second == "b"       // "c" is omitted.
>+//
>+// The `StrSplit()` function can be used multiple times to perform more
>+// complicated splitting logic, such as intelligently parsing key-value pairs.
>+//
>+// Example:
>+//
>+//   // The input std::string "a=b=c,d=e,f=,g" becomes
>+//   // { "a" => "b=c", "d" => "e", "f" => "", "g" => "" }
>+//   std::map<std::string, std::string> m;
>+//   for (absl::string_view sp : absl::StrSplit("a=b=c,d=e,f=,g", ',')) {
>+//     m.insert(absl::StrSplit(sp, absl::MaxSplits('=', 1)));
>+//   }
>+//   EXPECT_EQ("b=c", m.find("a")->second);
>+//   EXPECT_EQ("e", m.find("d")->second);
>+//   EXPECT_EQ("", m.find("f")->second);
>+//   EXPECT_EQ("", m.find("g")->second);
>+//
>+// WARNING: Due to a legacy bug that is maintained for backward compatibility,
>+// splitting the following empty string_views produces different results:
>+//
>+//   absl::StrSplit(absl::string_view(""), '-');  // {""}
>+//   absl::StrSplit(absl::string_view(), '-');    // {}, but should be {""}
>+//
>+// Try not to depend on this distinction because the bug may one day be fixed.
>+template <typename Delimiter>
>+strings_internal::Splitter<
>+    typename strings_internal::SelectDelimiter<Delimiter>::type, AllowEmpty>
>+StrSplit(strings_internal::ConvertibleToStringView text, Delimiter d) {
>+  using DelimiterType =
>+      typename strings_internal::SelectDelimiter<Delimiter>::type;
>+  return strings_internal::Splitter<DelimiterType, AllowEmpty>(
>+      std::move(text), DelimiterType(d), AllowEmpty());
>+}
>+
>+template <typename Delimiter, typename Predicate>
>+strings_internal::Splitter<
>+    typename strings_internal::SelectDelimiter<Delimiter>::type, Predicate>
>+StrSplit(strings_internal::ConvertibleToStringView text, Delimiter d,
>+         Predicate p) {
>+  using DelimiterType =
>+      typename strings_internal::SelectDelimiter<Delimiter>::type;
>+  return strings_internal::Splitter<DelimiterType, Predicate>(
>+      std::move(text), DelimiterType(d), std::move(p));
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STR_SPLIT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..326ff744ebd946e7781063ce93d731c2e15c4b5c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_benchmark.cc
>@@ -0,0 +1,156 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_split.h"
>+
>+#include <iterator>
>+#include <string>
>+#include <unordered_map>
>+#include <unordered_set>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace {
>+
>+std::string MakeTestString(int desired_length) {
>+  static const int kAverageValueLen = 25;
>+  std::string test(desired_length * kAverageValueLen, 'x');
>+  for (int i = 1; i < test.size(); i += kAverageValueLen) {
>+    test[i] = ';';
>+  }
>+  return test;
>+}
>+
>+void BM_Split2StringPiece(benchmark::State& state) {
>+  std::string test = MakeTestString(state.range(0));
>+  for (auto _ : state) {
>+    std::vector<absl::string_view> result = absl::StrSplit(test, ';');
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_Split2StringPiece, 0, 1 << 20);
>+
>+void BM_Split2StringPieceLifted(benchmark::State& state) {
>+  std::string test = MakeTestString(state.range(0));
>+  std::vector<absl::string_view> result;
>+  for (auto _ : state) {
>+    result = absl::StrSplit(test, ';');
>+  }
>+  benchmark::DoNotOptimize(result);
>+}
>+BENCHMARK_RANGE(BM_Split2StringPieceLifted, 0, 1 << 20);
>+
>+void BM_Split2String(benchmark::State& state) {
>+  std::string test = MakeTestString(state.range(0));
>+  for (auto _ : state) {
>+    std::vector<std::string> result = absl::StrSplit(test, ';');
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_Split2String, 0, 1 << 20);
>+
>+// This benchmark is for comparing Split2 to Split1 (SplitStringUsing). In
>+// particular, this benchmark uses SkipEmpty() to match SplitStringUsing's
>+// behavior.
>+void BM_Split2SplitStringUsing(benchmark::State& state) {
>+  std::string test = MakeTestString(state.range(0));
>+  for (auto _ : state) {
>+    std::vector<std::string> result = absl::StrSplit(test, ';', absl::SkipEmpty());
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_Split2SplitStringUsing, 0, 1 << 20);
>+
>+void BM_SplitStringToUnorderedSet(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::string test(len, 'x');
>+  for (int i = 1; i < len; i += 2) {
>+    test[i] = ';';
>+  }
>+  for (auto _ : state) {
>+    std::unordered_set<std::string> result =
>+        absl::StrSplit(test, ':', absl::SkipEmpty());
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_SplitStringToUnorderedSet, 0, 1 << 20);
>+
>+void BM_SplitStringToUnorderedMap(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::string test(len, 'x');
>+  for (int i = 1; i < len; i += 2) {
>+    test[i] = ';';
>+  }
>+  for (auto _ : state) {
>+    std::unordered_map<std::string, std::string> result =
>+        absl::StrSplit(test, ':', absl::SkipEmpty());
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_SplitStringToUnorderedMap, 0, 1 << 20);
>+
>+void BM_SplitStringAllowEmpty(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::string test(len, 'x');
>+  for (int i = 1; i < len; i += 2) {
>+    test[i] = ';';
>+  }
>+  for (auto _ : state) {
>+    std::vector<std::string> result = absl::StrSplit(test, ';');
>+    benchmark::DoNotOptimize(result);
>+  }
>+}
>+BENCHMARK_RANGE(BM_SplitStringAllowEmpty, 0, 1 << 20);
>+
>+struct OneCharLiteral {
>+  char operator()() const { return 'X'; }
>+};
>+
>+struct OneCharStringLiteral {
>+  const char* operator()() const { return "X"; }
>+};
>+
>+template <typename DelimiterFactory>
>+void BM_SplitStringWithOneChar(benchmark::State& state) {
>+  const auto delimiter = DelimiterFactory()();
>+  std::vector<absl::string_view> pieces;
>+  size_t v = 0;
>+  for (auto _ : state) {
>+    pieces = absl::StrSplit("The quick brown fox jumps over the lazy dog",
>+                            delimiter);
>+    v += pieces.size();
>+  }
>+  ABSL_RAW_CHECK(v == state.iterations(), "");
>+}
>+BENCHMARK_TEMPLATE(BM_SplitStringWithOneChar, OneCharLiteral);
>+BENCHMARK_TEMPLATE(BM_SplitStringWithOneChar, OneCharStringLiteral);
>+
>+template <typename DelimiterFactory>
>+void BM_SplitStringWithOneCharNoVector(benchmark::State& state) {
>+  const auto delimiter = DelimiterFactory()();
>+  size_t v = 0;
>+  for (auto _ : state) {
>+    auto splitter = absl::StrSplit(
>+        "The quick brown fox jumps over the lazy dog", delimiter);
>+    v += std::distance(splitter.begin(), splitter.end());
>+  }
>+  ABSL_RAW_CHECK(v == state.iterations(), "");
>+}
>+BENCHMARK_TEMPLATE(BM_SplitStringWithOneCharNoVector, OneCharLiteral);
>+BENCHMARK_TEMPLATE(BM_SplitStringWithOneCharNoVector, OneCharStringLiteral);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..29a68047c99aef31bc7d3673a32b7228542c79a3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/str_split_test.cc
>@@ -0,0 +1,935 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/str_split.h"
>+
>+#include <deque>
>+#include <initializer_list>
>+#include <list>
>+#include <map>
>+#include <memory>
>+#include <string>
>+#include <type_traits>
>+#include <unordered_map>
>+#include <unordered_set>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/dynamic_annotations.h"  // for AbslRunningOnValgrind
>+#include "absl/base/macros.h"
>+#include "absl/strings/numbers.h"
>+
>+namespace {
>+
>+using ::testing::ElementsAre;
>+using ::testing::Pair;
>+using ::testing::UnorderedElementsAre;
>+
>+TEST(Split, TraitsTest) {
>+  static_assert(!absl::strings_internal::SplitterIsConvertibleTo<int>::value,
>+                "");
>+  static_assert(!absl::strings_internal::SplitterIsConvertibleTo<std::string>::value,
>+                "");
>+  static_assert(absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::vector<std::string>>::value,
>+                "");
>+  static_assert(
>+      !absl::strings_internal::SplitterIsConvertibleTo<std::vector<int>>::value,
>+      "");
>+  static_assert(absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::vector<absl::string_view>>::value,
>+                "");
>+  static_assert(absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::map<std::string, std::string>>::value,
>+                "");
>+  static_assert(absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::map<absl::string_view, absl::string_view>>::value,
>+                "");
>+  static_assert(!absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::map<int, std::string>>::value,
>+                "");
>+  static_assert(!absl::strings_internal::SplitterIsConvertibleTo<
>+                    std::map<std::string, int>>::value,
>+                "");
>+}
>+
>+// This tests the overall split API, which is made up of the absl::StrSplit()
>+// function and the Delimiter objects in the absl:: namespace.
>+// This TEST macro is outside of any namespace to require full specification of
>+// namespaces just like callers will need to use.
>+TEST(Split, APIExamples) {
>+  {
>+    // Passes std::string delimiter. Assumes the default of Literal.
>+    std::vector<std::string> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+
>+    // Equivalent to...
>+    using absl::ByString;
>+    v = absl::StrSplit("a,b,c", ByString(","));
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+
>+    // Equivalent to...
>+    EXPECT_THAT(absl::StrSplit("a,b,c", ByString(",")),
>+                ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Same as above, but using a single character as the delimiter.
>+    std::vector<std::string> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+
>+    // Equivalent to...
>+    using absl::ByChar;
>+    v = absl::StrSplit("a,b,c", ByChar(','));
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Same as above, but using std::string
>+    std::vector<std::string> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+
>+    // Equivalent to...
>+    using absl::ByChar;
>+    v = absl::StrSplit("a,b,c", ByChar(','));
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Uses the Literal std::string "=>" as the delimiter.
>+    const std::vector<std::string> v = absl::StrSplit("a=>b=>c", "=>");
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // The substrings are returned as string_views, eliminating copying.
>+    std::vector<absl::string_view> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Leading and trailing empty substrings.
>+    std::vector<std::string> v = absl::StrSplit(",a,b,c,", ',');
>+    EXPECT_THAT(v, ElementsAre("", "a", "b", "c", ""));
>+  }
>+
>+  {
>+    // Splits on a delimiter that is not found.
>+    std::vector<std::string> v = absl::StrSplit("abc", ',');
>+    EXPECT_THAT(v, ElementsAre("abc"));
>+  }
>+
>+  {
>+    // Splits the input std::string into individual characters by using an empty
>+    // std::string as the delimiter.
>+    std::vector<std::string> v = absl::StrSplit("abc", "");
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Splits std::string data with embedded NUL characters, using NUL as the
>+    // delimiter. A simple delimiter of "\0" doesn't work because strlen() will
>+    // say that's the empty std::string when constructing the absl::string_view
>+    // delimiter. Instead, a non-empty std::string containing NUL can be used as the
>+    // delimiter.
>+    std::string embedded_nulls("a\0b\0c", 5);
>+    std::string null_delim("\0", 1);
>+    std::vector<std::string> v = absl::StrSplit(embedded_nulls, null_delim);
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Stores first two split strings as the members in a std::pair.
>+    std::pair<std::string, std::string> p = absl::StrSplit("a,b,c", ',');
>+    EXPECT_EQ("a", p.first);
>+    EXPECT_EQ("b", p.second);
>+    // "c" is omitted because std::pair can hold only two elements.
>+  }
>+
>+  {
>+    // Results stored in std::set<std::string>
>+    std::set<std::string> v = absl::StrSplit("a,b,c,a,b,c,a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Uses a non-const char* delimiter.
>+    char a[] = ",";
>+    char* d = a + 0;
>+    std::vector<std::string> v = absl::StrSplit("a,b,c", d);
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Results split using either of , or ;
>+    using absl::ByAnyChar;
>+    std::vector<std::string> v = absl::StrSplit("a,b;c", ByAnyChar(",;"));
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Uses the SkipWhitespace predicate.
>+    using absl::SkipWhitespace;
>+    std::vector<std::string> v = absl::StrSplit(" a , ,,b,", ',', SkipWhitespace());
>+    EXPECT_THAT(v, ElementsAre(" a ", "b"));
>+  }
>+
>+  {
>+    // Uses the ByLength delimiter.
>+    using absl::ByLength;
>+    std::vector<std::string> v = absl::StrSplit("abcdefg", ByLength(3));
>+    EXPECT_THAT(v, ElementsAre("abc", "def", "g"));
>+  }
>+
>+  {
>+    // Different forms of initialization / conversion.
>+    std::vector<std::string> v1 = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v1, ElementsAre("a", "b", "c"));
>+    std::vector<std::string> v2(absl::StrSplit("a,b,c", ','));
>+    EXPECT_THAT(v2, ElementsAre("a", "b", "c"));
>+    auto v3 = std::vector<std::string>(absl::StrSplit("a,b,c", ','));
>+    EXPECT_THAT(v3, ElementsAre("a", "b", "c"));
>+    v3 = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v3, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Results stored in a std::map.
>+    std::map<std::string, std::string> m = absl::StrSplit("a,1,b,2,a,3", ',');
>+    EXPECT_EQ(2, m.size());
>+    EXPECT_EQ("3", m["a"]);
>+    EXPECT_EQ("2", m["b"]);
>+  }
>+
>+  {
>+    // Results stored in a std::multimap.
>+    std::multimap<std::string, std::string> m = absl::StrSplit("a,1,b,2,a,3", ',');
>+    EXPECT_EQ(3, m.size());
>+    auto it = m.find("a");
>+    EXPECT_EQ("1", it->second);
>+    ++it;
>+    EXPECT_EQ("3", it->second);
>+    it = m.find("b");
>+    EXPECT_EQ("2", it->second);
>+  }
>+
>+  {
>+    // Demonstrates use in a range-based for loop in C++11.
>+    std::string s = "x,x,x,x,x,x,x";
>+    for (absl::string_view sp : absl::StrSplit(s, ',')) {
>+      EXPECT_EQ("x", sp);
>+    }
>+  }
>+
>+  {
>+    // Demonstrates use with a Predicate in a range-based for loop.
>+    using absl::SkipWhitespace;
>+    std::string s = " ,x,,x,,x,x,x,,";
>+    for (absl::string_view sp : absl::StrSplit(s, ',', SkipWhitespace())) {
>+      EXPECT_EQ("x", sp);
>+    }
>+  }
>+
>+  {
>+    // Demonstrates a "smart" split to std::map using two separate calls to
>+    // absl::StrSplit. One call to split the records, and another call to split
>+    // the keys and values. This also uses the Limit delimiter so that the
>+    // std::string "a=b=c" will split to "a" -> "b=c".
>+    std::map<std::string, std::string> m;
>+    for (absl::string_view sp : absl::StrSplit("a=b=c,d=e,f=,g", ',')) {
>+      m.insert(absl::StrSplit(sp, absl::MaxSplits('=', 1)));
>+    }
>+    EXPECT_EQ("b=c", m.find("a")->second);
>+    EXPECT_EQ("e", m.find("d")->second);
>+    EXPECT_EQ("", m.find("f")->second);
>+    EXPECT_EQ("", m.find("g")->second);
>+  }
>+}
>+
>+//
>+// Tests for SplitIterator
>+//
>+
>+TEST(SplitIterator, Basics) {
>+  auto splitter = absl::StrSplit("a,b", ',');
>+  auto it = splitter.begin();
>+  auto end = splitter.end();
>+
>+  EXPECT_NE(it, end);
>+  EXPECT_EQ("a", *it);  // tests dereference
>+  ++it;                 // tests preincrement
>+  EXPECT_NE(it, end);
>+  EXPECT_EQ("b", std::string(it->data(), it->size()));  // tests dereference as ptr
>+  it++;                                            // tests postincrement
>+  EXPECT_EQ(it, end);
>+}
>+
>+// Simple Predicate to skip a particular std::string.
>+class Skip {
>+ public:
>+  explicit Skip(const std::string& s) : s_(s) {}
>+  bool operator()(absl::string_view sp) { return sp != s_; }
>+
>+ private:
>+  std::string s_;
>+};
>+
>+TEST(SplitIterator, Predicate) {
>+  auto splitter = absl::StrSplit("a,b,c", ',', Skip("b"));
>+  auto it = splitter.begin();
>+  auto end = splitter.end();
>+
>+  EXPECT_NE(it, end);
>+  EXPECT_EQ("a", *it);  // tests dereference
>+  ++it;                 // tests preincrement -- "b" should be skipped here.
>+  EXPECT_NE(it, end);
>+  EXPECT_EQ("c", std::string(it->data(), it->size()));  // tests dereference as ptr
>+  it++;                                            // tests postincrement
>+  EXPECT_EQ(it, end);
>+}
>+
>+TEST(SplitIterator, EdgeCases) {
>+  // Expected input and output, assuming a delimiter of ','
>+  struct {
>+    std::string in;
>+    std::vector<std::string> expect;
>+  } specs[] = {
>+      {"", {""}},
>+      {"foo", {"foo"}},
>+      {",", {"", ""}},
>+      {",foo", {"", "foo"}},
>+      {"foo,", {"foo", ""}},
>+      {",foo,", {"", "foo", ""}},
>+      {"foo,bar", {"foo", "bar"}},
>+  };
>+
>+  for (const auto& spec : specs) {
>+    SCOPED_TRACE(spec.in);
>+    auto splitter = absl::StrSplit(spec.in, ',');
>+    auto it = splitter.begin();
>+    auto end = splitter.end();
>+    for (const auto& expected : spec.expect) {
>+      EXPECT_NE(it, end);
>+      EXPECT_EQ(expected, *it++);
>+    }
>+    EXPECT_EQ(it, end);
>+  }
>+}
>+
>+TEST(Splitter, Const) {
>+  const auto splitter = absl::StrSplit("a,b,c", ',');
>+  EXPECT_THAT(splitter, ElementsAre("a", "b", "c"));
>+}
>+
>+TEST(Split, EmptyAndNull) {
>+  // Attention: Splitting a null absl::string_view is different than splitting
>+  // an empty absl::string_view even though both string_views are considered
>+  // equal. This behavior is likely surprising and undesirable. However, to
>+  // maintain backward compatibility, there is a small "hack" in
>+  // str_split_internal.h that preserves this behavior. If that behavior is ever
>+  // changed/fixed, this test will need to be updated.
>+  EXPECT_THAT(absl::StrSplit(absl::string_view(""), '-'), ElementsAre(""));
>+  EXPECT_THAT(absl::StrSplit(absl::string_view(), '-'), ElementsAre());
>+}
>+
>+TEST(SplitIterator, EqualityAsEndCondition) {
>+  auto splitter = absl::StrSplit("a,b,c", ',');
>+  auto it = splitter.begin();
>+  auto it2 = it;
>+
>+  // Increments it2 twice to point to "c" in the input text.
>+  ++it2;
>+  ++it2;
>+  EXPECT_EQ("c", *it2);
>+
>+  // This test uses a non-end SplitIterator as the terminating condition in a
>+  // for loop. This relies on SplitIterator equality for non-end SplitIterators
>+  // working correctly. At this point it2 points to "c", and we use that as the
>+  // "end" condition in this test.
>+  std::vector<absl::string_view> v;
>+  for (; it != it2; ++it) {
>+    v.push_back(*it);
>+  }
>+  EXPECT_THAT(v, ElementsAre("a", "b"));
>+}
>+
>+//
>+// Tests for Splitter
>+//
>+
>+TEST(Splitter, RangeIterators) {
>+  auto splitter = absl::StrSplit("a,b,c", ',');
>+  std::vector<absl::string_view> output;
>+  for (const absl::string_view p : splitter) {
>+    output.push_back(p);
>+  }
>+  EXPECT_THAT(output, ElementsAre("a", "b", "c"));
>+}
>+
>+// Some template functions for use in testing conversion operators
>+template <typename ContainerType, typename Splitter>
>+void TestConversionOperator(const Splitter& splitter) {
>+  ContainerType output = splitter;
>+  EXPECT_THAT(output, UnorderedElementsAre("a", "b", "c", "d"));
>+}
>+
>+template <typename MapType, typename Splitter>
>+void TestMapConversionOperator(const Splitter& splitter) {
>+  MapType m = splitter;
>+  EXPECT_THAT(m, UnorderedElementsAre(Pair("a", "b"), Pair("c", "d")));
>+}
>+
>+template <typename FirstType, typename SecondType, typename Splitter>
>+void TestPairConversionOperator(const Splitter& splitter) {
>+  std::pair<FirstType, SecondType> p = splitter;
>+  EXPECT_EQ(p, (std::pair<FirstType, SecondType>("a", "b")));
>+}
>+
>+TEST(Splitter, ConversionOperator) {
>+  auto splitter = absl::StrSplit("a,b,c,d", ',');
>+
>+  TestConversionOperator<std::vector<absl::string_view>>(splitter);
>+  TestConversionOperator<std::vector<std::string>>(splitter);
>+  TestConversionOperator<std::list<absl::string_view>>(splitter);
>+  TestConversionOperator<std::list<std::string>>(splitter);
>+  TestConversionOperator<std::deque<absl::string_view>>(splitter);
>+  TestConversionOperator<std::deque<std::string>>(splitter);
>+  TestConversionOperator<std::set<absl::string_view>>(splitter);
>+  TestConversionOperator<std::set<std::string>>(splitter);
>+  TestConversionOperator<std::multiset<absl::string_view>>(splitter);
>+  TestConversionOperator<std::multiset<std::string>>(splitter);
>+  TestConversionOperator<std::unordered_set<std::string>>(splitter);
>+
>+  // Tests conversion to map-like objects.
>+
>+  TestMapConversionOperator<std::map<absl::string_view, absl::string_view>>(
>+      splitter);
>+  TestMapConversionOperator<std::map<absl::string_view, std::string>>(splitter);
>+  TestMapConversionOperator<std::map<std::string, absl::string_view>>(splitter);
>+  TestMapConversionOperator<std::map<std::string, std::string>>(splitter);
>+  TestMapConversionOperator<
>+      std::multimap<absl::string_view, absl::string_view>>(splitter);
>+  TestMapConversionOperator<std::multimap<absl::string_view, std::string>>(splitter);
>+  TestMapConversionOperator<std::multimap<std::string, absl::string_view>>(splitter);
>+  TestMapConversionOperator<std::multimap<std::string, std::string>>(splitter);
>+  TestMapConversionOperator<std::unordered_map<std::string, std::string>>(splitter);
>+
>+  // Tests conversion to std::pair
>+
>+  TestPairConversionOperator<absl::string_view, absl::string_view>(splitter);
>+  TestPairConversionOperator<absl::string_view, std::string>(splitter);
>+  TestPairConversionOperator<std::string, absl::string_view>(splitter);
>+  TestPairConversionOperator<std::string, std::string>(splitter);
>+}
>+
>+// A few additional tests for conversion to std::pair. This conversion is
>+// different from others because a std::pair always has exactly two elements:
>+// .first and .second. The split has to work even when the split has
>+// less-than, equal-to, and more-than 2 strings.
>+TEST(Splitter, ToPair) {
>+  {
>+    // Empty std::string
>+    std::pair<std::string, std::string> p = absl::StrSplit("", ',');
>+    EXPECT_EQ("", p.first);
>+    EXPECT_EQ("", p.second);
>+  }
>+
>+  {
>+    // Only first
>+    std::pair<std::string, std::string> p = absl::StrSplit("a", ',');
>+    EXPECT_EQ("a", p.first);
>+    EXPECT_EQ("", p.second);
>+  }
>+
>+  {
>+    // Only second
>+    std::pair<std::string, std::string> p = absl::StrSplit(",b", ',');
>+    EXPECT_EQ("", p.first);
>+    EXPECT_EQ("b", p.second);
>+  }
>+
>+  {
>+    // First and second.
>+    std::pair<std::string, std::string> p = absl::StrSplit("a,b", ',');
>+    EXPECT_EQ("a", p.first);
>+    EXPECT_EQ("b", p.second);
>+  }
>+
>+  {
>+    // First and second and then more stuff that will be ignored.
>+    std::pair<std::string, std::string> p = absl::StrSplit("a,b,c", ',');
>+    EXPECT_EQ("a", p.first);
>+    EXPECT_EQ("b", p.second);
>+    // "c" is omitted.
>+  }
>+}
>+
>+TEST(Splitter, Predicates) {
>+  static const char kTestChars[] = ",a, ,b,";
>+  using absl::AllowEmpty;
>+  using absl::SkipEmpty;
>+  using absl::SkipWhitespace;
>+
>+  {
>+    // No predicate. Does not skip empties.
>+    auto splitter = absl::StrSplit(kTestChars, ',');
>+    std::vector<std::string> v = splitter;
>+    EXPECT_THAT(v, ElementsAre("", "a", " ", "b", ""));
>+  }
>+
>+  {
>+    // Allows empty strings. Same behavior as no predicate at all.
>+    auto splitter = absl::StrSplit(kTestChars, ',', AllowEmpty());
>+    std::vector<std::string> v_allowempty = splitter;
>+    EXPECT_THAT(v_allowempty, ElementsAre("", "a", " ", "b", ""));
>+
>+    // Ensures AllowEmpty equals the behavior with no predicate.
>+    auto splitter_nopredicate = absl::StrSplit(kTestChars, ',');
>+    std::vector<std::string> v_nopredicate = splitter_nopredicate;
>+    EXPECT_EQ(v_allowempty, v_nopredicate);
>+  }
>+
>+  {
>+    // Skips empty strings.
>+    auto splitter = absl::StrSplit(kTestChars, ',', SkipEmpty());
>+    std::vector<std::string> v = splitter;
>+    EXPECT_THAT(v, ElementsAre("a", " ", "b"));
>+  }
>+
>+  {
>+    // Skips empty and all-whitespace strings.
>+    auto splitter = absl::StrSplit(kTestChars, ',', SkipWhitespace());
>+    std::vector<std::string> v = splitter;
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+}
>+
>+//
>+// Tests for StrSplit()
>+//
>+
>+TEST(Split, Basics) {
>+  {
>+    // Doesn't really do anything useful because the return value is ignored,
>+    // but it should work.
>+    absl::StrSplit("a,b,c", ',');
>+  }
>+
>+  {
>+    std::vector<absl::string_view> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    std::vector<std::string> v = absl::StrSplit("a,b,c", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+  }
>+
>+  {
>+    // Ensures that assignment works. This requires a little extra work with
>+    // C++11 because of overloads with initializer_list.
>+    std::vector<std::string> v;
>+    v = absl::StrSplit("a,b,c", ',');
>+
>+    EXPECT_THAT(v, ElementsAre("a", "b", "c"));
>+    std::map<std::string, std::string> m;
>+    m = absl::StrSplit("a,b,c", ',');
>+    EXPECT_EQ(2, m.size());
>+    std::unordered_map<std::string, std::string> hm;
>+    hm = absl::StrSplit("a,b,c", ',');
>+    EXPECT_EQ(2, hm.size());
>+  }
>+}
>+
>+absl::string_view ReturnStringView() { return "Hello World"; }
>+const char* ReturnConstCharP() { return "Hello World"; }
>+char* ReturnCharP() { return const_cast<char*>("Hello World"); }
>+
>+TEST(Split, AcceptsCertainTemporaries) {
>+  std::vector<std::string> v;
>+  v = absl::StrSplit(ReturnStringView(), ' ');
>+  EXPECT_THAT(v, ElementsAre("Hello", "World"));
>+  v = absl::StrSplit(ReturnConstCharP(), ' ');
>+  EXPECT_THAT(v, ElementsAre("Hello", "World"));
>+  v = absl::StrSplit(ReturnCharP(), ' ');
>+  EXPECT_THAT(v, ElementsAre("Hello", "World"));
>+}
>+
>+TEST(Split, Temporary) {
>+  // Use a std::string longer than the small-std::string-optimization length, so that when
>+  // the temporary is destroyed, if the splitter keeps a reference to the
>+  // std::string's contents, it'll reference freed memory instead of just dead
>+  // on-stack memory.
>+  const char input[] = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u";
>+  EXPECT_LT(sizeof(std::string), ABSL_ARRAYSIZE(input))
>+      << "Input should be larger than fits on the stack.";
>+
>+  // This happens more often in C++11 as part of a range-based for loop.
>+  auto splitter = absl::StrSplit(std::string(input), ',');
>+  std::string expected = "a";
>+  for (absl::string_view letter : splitter) {
>+    EXPECT_EQ(expected, letter);
>+    ++expected[0];
>+  }
>+  EXPECT_EQ("v", expected);
>+
>+  // This happens more often in C++11 as part of a range-based for loop.
>+  auto std_splitter = absl::StrSplit(std::string(input), ',');
>+  expected = "a";
>+  for (absl::string_view letter : std_splitter) {
>+    EXPECT_EQ(expected, letter);
>+    ++expected[0];
>+  }
>+  EXPECT_EQ("v", expected);
>+}
>+
>+template <typename T>
>+static std::unique_ptr<T> CopyToHeap(const T& value) {
>+  return std::unique_ptr<T>(new T(value));
>+}
>+
>+TEST(Split, LvalueCaptureIsCopyable) {
>+  std::string input = "a,b";
>+  auto heap_splitter = CopyToHeap(absl::StrSplit(input, ','));
>+  auto stack_splitter = *heap_splitter;
>+  heap_splitter.reset();
>+  std::vector<std::string> result = stack_splitter;
>+  EXPECT_THAT(result, testing::ElementsAre("a", "b"));
>+}
>+
>+TEST(Split, TemporaryCaptureIsCopyable) {
>+  auto heap_splitter = CopyToHeap(absl::StrSplit(std::string("a,b"), ','));
>+  auto stack_splitter = *heap_splitter;
>+  heap_splitter.reset();
>+  std::vector<std::string> result = stack_splitter;
>+  EXPECT_THAT(result, testing::ElementsAre("a", "b"));
>+}
>+
>+TEST(Split, SplitterIsCopyableAndMoveable) {
>+  auto a = absl::StrSplit("foo", '-');
>+
>+  // Ensures that the following expressions compile.
>+  auto b = a;             // Copy construct
>+  auto c = std::move(a);  // Move construct
>+  b = c;                  // Copy assign
>+  c = std::move(b);       // Move assign
>+
>+  EXPECT_THAT(c, ElementsAre("foo"));
>+}
>+
>+TEST(Split, StringDelimiter) {
>+  {
>+    std::vector<absl::string_view> v = absl::StrSplit("a,b", ',');
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+
>+  {
>+    std::vector<absl::string_view> v = absl::StrSplit("a,b", std::string(","));
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+
>+  {
>+    std::vector<absl::string_view> v =
>+        absl::StrSplit("a,b", absl::string_view(","));
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+}
>+
>+TEST(Split, UTF8) {
>+  // Tests splitting utf8 strings and utf8 delimiters.
>+  std::string utf8_string = u8"\u03BA\u1F79\u03C3\u03BC\u03B5";
>+  {
>+    // A utf8 input std::string with an ascii delimiter.
>+    std::string to_split = "a," + utf8_string;
>+    std::vector<absl::string_view> v = absl::StrSplit(to_split, ',');
>+    EXPECT_THAT(v, ElementsAre("a", utf8_string));
>+  }
>+
>+  {
>+    // A utf8 input std::string and a utf8 delimiter.
>+    std::string to_split = "a," + utf8_string + ",b";
>+    std::string unicode_delimiter = "," + utf8_string + ",";
>+    std::vector<absl::string_view> v =
>+        absl::StrSplit(to_split, unicode_delimiter);
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+
>+  {
>+    // A utf8 input std::string and ByAnyChar with ascii chars.
>+    std::vector<absl::string_view> v =
>+        absl::StrSplit(u8"Foo h\u00E4llo th\u4E1Ere", absl::ByAnyChar(" \t"));
>+    EXPECT_THAT(v, ElementsAre("Foo", u8"h\u00E4llo", u8"th\u4E1Ere"));
>+  }
>+}
>+
>+TEST(Split, EmptyStringDelimiter) {
>+  {
>+    std::vector<std::string> v = absl::StrSplit("", "");
>+    EXPECT_THAT(v, ElementsAre(""));
>+  }
>+
>+  {
>+    std::vector<std::string> v = absl::StrSplit("a", "");
>+    EXPECT_THAT(v, ElementsAre("a"));
>+  }
>+
>+  {
>+    std::vector<std::string> v = absl::StrSplit("ab", "");
>+    EXPECT_THAT(v, ElementsAre("a", "b"));
>+  }
>+
>+  {
>+    std::vector<std::string> v = absl::StrSplit("a b", "");
>+    EXPECT_THAT(v, ElementsAre("a", " ", "b"));
>+  }
>+}
>+
>+TEST(Split, SubstrDelimiter) {
>+  std::vector<absl::string_view> results;
>+  absl::string_view delim("//");
>+
>+  results = absl::StrSplit("", delim);
>+  EXPECT_THAT(results, ElementsAre(""));
>+
>+  results = absl::StrSplit("//", delim);
>+  EXPECT_THAT(results, ElementsAre("", ""));
>+
>+  results = absl::StrSplit("ab", delim);
>+  EXPECT_THAT(results, ElementsAre("ab"));
>+
>+  results = absl::StrSplit("ab//", delim);
>+  EXPECT_THAT(results, ElementsAre("ab", ""));
>+
>+  results = absl::StrSplit("ab/", delim);
>+  EXPECT_THAT(results, ElementsAre("ab/"));
>+
>+  results = absl::StrSplit("a/b", delim);
>+  EXPECT_THAT(results, ElementsAre("a/b"));
>+
>+  results = absl::StrSplit("a//b", delim);
>+  EXPECT_THAT(results, ElementsAre("a", "b"));
>+
>+  results = absl::StrSplit("a///b", delim);
>+  EXPECT_THAT(results, ElementsAre("a", "/b"));
>+
>+  results = absl::StrSplit("a////b", delim);
>+  EXPECT_THAT(results, ElementsAre("a", "", "b"));
>+}
>+
>+TEST(Split, EmptyResults) {
>+  std::vector<absl::string_view> results;
>+
>+  results = absl::StrSplit("", '#');
>+  EXPECT_THAT(results, ElementsAre(""));
>+
>+  results = absl::StrSplit("#", '#');
>+  EXPECT_THAT(results, ElementsAre("", ""));
>+
>+  results = absl::StrSplit("#cd", '#');
>+  EXPECT_THAT(results, ElementsAre("", "cd"));
>+
>+  results = absl::StrSplit("ab#cd#", '#');
>+  EXPECT_THAT(results, ElementsAre("ab", "cd", ""));
>+
>+  results = absl::StrSplit("ab##cd", '#');
>+  EXPECT_THAT(results, ElementsAre("ab", "", "cd"));
>+
>+  results = absl::StrSplit("ab##", '#');
>+  EXPECT_THAT(results, ElementsAre("ab", "", ""));
>+
>+  results = absl::StrSplit("ab#ab#", '#');
>+  EXPECT_THAT(results, ElementsAre("ab", "ab", ""));
>+
>+  results = absl::StrSplit("aaaa", 'a');
>+  EXPECT_THAT(results, ElementsAre("", "", "", "", ""));
>+
>+  results = absl::StrSplit("", '#', absl::SkipEmpty());
>+  EXPECT_THAT(results, ElementsAre());
>+}
>+
>+template <typename Delimiter>
>+static bool IsFoundAtStartingPos(absl::string_view text, Delimiter d,
>+                                 size_t starting_pos, int expected_pos) {
>+  absl::string_view found = d.Find(text, starting_pos);
>+  return found.data() != text.end() &&
>+         expected_pos == found.data() - text.data();
>+}
>+
>+// Helper function for testing Delimiter objects. Returns true if the given
>+// Delimiter is found in the given std::string at the given position. This function
>+// tests two cases:
>+//   1. The actual text given, staring at position 0
>+//   2. The text given with leading padding that should be ignored
>+template <typename Delimiter>
>+static bool IsFoundAt(absl::string_view text, Delimiter d, int expected_pos) {
>+  const std::string leading_text = ",x,y,z,";
>+  return IsFoundAtStartingPos(text, d, 0, expected_pos) &&
>+         IsFoundAtStartingPos(leading_text + std::string(text), d,
>+                              leading_text.length(),
>+                              expected_pos + leading_text.length());
>+}
>+
>+//
>+// Tests for Literal
>+//
>+
>+// Tests using any delimiter that represents a single comma.
>+template <typename Delimiter>
>+void TestComma(Delimiter d) {
>+  EXPECT_TRUE(IsFoundAt(",", d, 0));
>+  EXPECT_TRUE(IsFoundAt("a,", d, 1));
>+  EXPECT_TRUE(IsFoundAt(",b", d, 0));
>+  EXPECT_TRUE(IsFoundAt("a,b", d, 1));
>+  EXPECT_TRUE(IsFoundAt("a,b,", d, 1));
>+  EXPECT_TRUE(IsFoundAt("a,b,c", d, 1));
>+  EXPECT_FALSE(IsFoundAt("", d, -1));
>+  EXPECT_FALSE(IsFoundAt(" ", d, -1));
>+  EXPECT_FALSE(IsFoundAt("a", d, -1));
>+  EXPECT_FALSE(IsFoundAt("a b c", d, -1));
>+  EXPECT_FALSE(IsFoundAt("a;b;c", d, -1));
>+  EXPECT_FALSE(IsFoundAt(";", d, -1));
>+}
>+
>+TEST(Delimiter, Literal) {
>+  using absl::ByString;
>+  TestComma(ByString(","));
>+
>+  // Works as named variable.
>+  ByString comma_string(",");
>+  TestComma(comma_string);
>+
>+  // The first occurrence of empty std::string ("") in a std::string is at position 0.
>+  // There is a test below that demonstrates this for absl::string_view::find().
>+  // If the ByString delimiter returned position 0 for this, there would
>+  // be an infinite loop in the SplitIterator code. To avoid this, empty std::string
>+  // is a special case in that it always returns the item at position 1.
>+  absl::string_view abc("abc");
>+  EXPECT_EQ(0, abc.find(""));  // "" is found at position 0
>+  ByString empty("");
>+  EXPECT_FALSE(IsFoundAt("", empty, 0));
>+  EXPECT_FALSE(IsFoundAt("a", empty, 0));
>+  EXPECT_TRUE(IsFoundAt("ab", empty, 1));
>+  EXPECT_TRUE(IsFoundAt("abc", empty, 1));
>+}
>+
>+TEST(Split, ByChar) {
>+  using absl::ByChar;
>+  TestComma(ByChar(','));
>+
>+  // Works as named variable.
>+  ByChar comma_char(',');
>+  TestComma(comma_char);
>+}
>+
>+//
>+// Tests for ByAnyChar
>+//
>+
>+TEST(Delimiter, ByAnyChar) {
>+  using absl::ByAnyChar;
>+  ByAnyChar one_delim(",");
>+  // Found
>+  EXPECT_TRUE(IsFoundAt(",", one_delim, 0));
>+  EXPECT_TRUE(IsFoundAt("a,", one_delim, 1));
>+  EXPECT_TRUE(IsFoundAt("a,b", one_delim, 1));
>+  EXPECT_TRUE(IsFoundAt(",b", one_delim, 0));
>+  // Not found
>+  EXPECT_FALSE(IsFoundAt("", one_delim, -1));
>+  EXPECT_FALSE(IsFoundAt(" ", one_delim, -1));
>+  EXPECT_FALSE(IsFoundAt("a", one_delim, -1));
>+  EXPECT_FALSE(IsFoundAt("a;b;c", one_delim, -1));
>+  EXPECT_FALSE(IsFoundAt(";", one_delim, -1));
>+
>+  ByAnyChar two_delims(",;");
>+  // Found
>+  EXPECT_TRUE(IsFoundAt(",", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt(";", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt(",;", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt(";,", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt(",;b", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt(";,b", two_delims, 0));
>+  EXPECT_TRUE(IsFoundAt("a;,", two_delims, 1));
>+  EXPECT_TRUE(IsFoundAt("a,;", two_delims, 1));
>+  EXPECT_TRUE(IsFoundAt("a;,b", two_delims, 1));
>+  EXPECT_TRUE(IsFoundAt("a,;b", two_delims, 1));
>+  // Not found
>+  EXPECT_FALSE(IsFoundAt("", two_delims, -1));
>+  EXPECT_FALSE(IsFoundAt(" ", two_delims, -1));
>+  EXPECT_FALSE(IsFoundAt("a", two_delims, -1));
>+  EXPECT_FALSE(IsFoundAt("a=b=c", two_delims, -1));
>+  EXPECT_FALSE(IsFoundAt("=", two_delims, -1));
>+
>+  // ByAnyChar behaves just like ByString when given a delimiter of empty
>+  // std::string. That is, it always returns a zero-length absl::string_view
>+  // referring to the item at position 1, not position 0.
>+  ByAnyChar empty("");
>+  EXPECT_FALSE(IsFoundAt("", empty, 0));
>+  EXPECT_FALSE(IsFoundAt("a", empty, 0));
>+  EXPECT_TRUE(IsFoundAt("ab", empty, 1));
>+  EXPECT_TRUE(IsFoundAt("abc", empty, 1));
>+}
>+
>+//
>+// Tests for ByLength
>+//
>+
>+TEST(Delimiter, ByLength) {
>+  using absl::ByLength;
>+
>+  ByLength four_char_delim(4);
>+
>+  // Found
>+  EXPECT_TRUE(IsFoundAt("abcde", four_char_delim, 4));
>+  EXPECT_TRUE(IsFoundAt("abcdefghijklmnopqrstuvwxyz", four_char_delim, 4));
>+  EXPECT_TRUE(IsFoundAt("a b,c\nd", four_char_delim, 4));
>+  // Not found
>+  EXPECT_FALSE(IsFoundAt("", four_char_delim, 0));
>+  EXPECT_FALSE(IsFoundAt("a", four_char_delim, 0));
>+  EXPECT_FALSE(IsFoundAt("ab", four_char_delim, 0));
>+  EXPECT_FALSE(IsFoundAt("abc", four_char_delim, 0));
>+  EXPECT_FALSE(IsFoundAt("abcd", four_char_delim, 0));
>+}
>+
>+TEST(Split, WorksWithLargeStrings) {
>+  if (sizeof(size_t) > 4) {
>+    std::string s((uint32_t{1} << 31) + 1, 'x');  // 2G + 1 byte
>+    s.back() = '-';
>+    std::vector<absl::string_view> v = absl::StrSplit(s, '-');
>+    EXPECT_EQ(2, v.size());
>+    // The first element will contain 2G of 'x's.
>+    // testing::StartsWith is too slow with a 2G std::string.
>+    EXPECT_EQ('x', v[0][0]);
>+    EXPECT_EQ('x', v[0][1]);
>+    EXPECT_EQ('x', v[0][3]);
>+    EXPECT_EQ("", v[1]);
>+  }
>+}
>+
>+TEST(SplitInternalTest, TypeTraits) {
>+  EXPECT_FALSE(absl::strings_internal::HasMappedType<int>::value);
>+  EXPECT_TRUE(
>+      (absl::strings_internal::HasMappedType<std::map<int, int>>::value));
>+  EXPECT_FALSE(absl::strings_internal::HasValueType<int>::value);
>+  EXPECT_TRUE(
>+      (absl::strings_internal::HasValueType<std::map<int, int>>::value));
>+  EXPECT_FALSE(absl::strings_internal::HasConstIterator<int>::value);
>+  EXPECT_TRUE(
>+      (absl::strings_internal::HasConstIterator<std::map<int, int>>::value));
>+  EXPECT_FALSE(absl::strings_internal::IsInitializerList<int>::value);
>+  EXPECT_TRUE((absl::strings_internal::IsInitializerList<
>+               std::initializer_list<int>>::value));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..4ceeb6bff580c8c55642db7e01e8d7f2021d97bf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.cc
>@@ -0,0 +1,245 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/string_view.h"
>+
>+#ifndef ABSL_HAVE_STD_STRING_VIEW
>+
>+#include <algorithm>
>+#include <climits>
>+#include <cstring>
>+#include <ostream>
>+
>+#include "absl/strings/internal/memutil.h"
>+
>+namespace absl {
>+
>+namespace {
>+void WritePadding(std::ostream& o, size_t pad) {
>+  char fill_buf[32];
>+  memset(fill_buf, o.fill(), sizeof(fill_buf));
>+  while (pad) {
>+    size_t n = std::min(pad, sizeof(fill_buf));
>+    o.write(fill_buf, n);
>+    pad -= n;
>+  }
>+}
>+
>+class LookupTable {
>+ public:
>+  // For each character in wanted, sets the index corresponding
>+  // to the ASCII code of that character. This is used by
>+  // the find_.*_of methods below to tell whether or not a character is in
>+  // the lookup table in constant time.
>+  explicit LookupTable(string_view wanted) {
>+    for (char c : wanted) {
>+      table_[Index(c)] = true;
>+    }
>+  }
>+  bool operator[](char c) const { return table_[Index(c)]; }
>+
>+ private:
>+  static unsigned char Index(char c) { return static_cast<unsigned char>(c); }
>+  bool table_[UCHAR_MAX + 1] = {};
>+};
>+
>+}  // namespace
>+
>+std::ostream& operator<<(std::ostream& o, string_view piece) {
>+  std::ostream::sentry sentry(o);
>+  if (sentry) {
>+    size_t lpad = 0;
>+    size_t rpad = 0;
>+    if (static_cast<size_t>(o.width()) > piece.size()) {
>+      size_t pad = o.width() - piece.size();
>+      if ((o.flags() & o.adjustfield) == o.left) {
>+        rpad = pad;
>+      } else {
>+        lpad = pad;
>+      }
>+    }
>+    if (lpad) WritePadding(o, lpad);
>+    o.write(piece.data(), piece.size());
>+    if (rpad) WritePadding(o, rpad);
>+    o.width(0);
>+  }
>+  return o;
>+}
>+
>+string_view::size_type string_view::copy(char* buf, size_type n,
>+                                         size_type pos) const {
>+  size_type ulen = length_;
>+  assert(pos <= ulen);
>+  size_type rlen = std::min(ulen - pos, n);
>+  if (rlen > 0) {
>+    const char* start = ptr_ + pos;
>+    std::copy(start, start + rlen, buf);
>+  }
>+  return rlen;
>+}
>+
>+string_view::size_type string_view::find(string_view s, size_type pos) const
>+    noexcept {
>+  if (empty() || pos > length_) {
>+    if (empty() && pos == 0 && s.empty()) return 0;
>+    return npos;
>+  }
>+  const char* result =
>+      strings_internal::memmatch(ptr_ + pos, length_ - pos, s.ptr_, s.length_);
>+  return result ? result - ptr_ : npos;
>+}
>+
>+string_view::size_type string_view::find(char c, size_type pos) const noexcept {
>+  if (empty() || pos >= length_) {
>+    return npos;
>+  }
>+  const char* result =
>+      static_cast<const char*>(memchr(ptr_ + pos, c, length_ - pos));
>+  return result != nullptr ? result - ptr_ : npos;
>+}
>+
>+string_view::size_type string_view::rfind(string_view s, size_type pos) const
>+    noexcept {
>+  if (length_ < s.length_) return npos;
>+  if (s.empty()) return std::min(length_, pos);
>+  const char* last = ptr_ + std::min(length_ - s.length_, pos) + s.length_;
>+  const char* result = std::find_end(ptr_, last, s.ptr_, s.ptr_ + s.length_);
>+  return result != last ? result - ptr_ : npos;
>+}
>+
>+// Search range is [0..pos] inclusive.  If pos == npos, search everything.
>+string_view::size_type string_view::rfind(char c, size_type pos) const
>+    noexcept {
>+  // Note: memrchr() is not available on Windows.
>+  if (empty()) return npos;
>+  for (size_type i = std::min(pos, length_ - 1);; --i) {
>+    if (ptr_[i] == c) {
>+      return i;
>+    }
>+    if (i == 0) break;
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_first_of(string_view s,
>+                                                  size_type pos) const
>+    noexcept {
>+  if (empty() || s.empty()) {
>+    return npos;
>+  }
>+  // Avoid the cost of LookupTable() for a single-character search.
>+  if (s.length_ == 1) return find_first_of(s.ptr_[0], pos);
>+  LookupTable tbl(s);
>+  for (size_type i = pos; i < length_; ++i) {
>+    if (tbl[ptr_[i]]) {
>+      return i;
>+    }
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_first_not_of(string_view s,
>+                                                      size_type pos) const
>+    noexcept {
>+  if (empty()) return npos;
>+  // Avoid the cost of LookupTable() for a single-character search.
>+  if (s.length_ == 1) return find_first_not_of(s.ptr_[0], pos);
>+  LookupTable tbl(s);
>+  for (size_type i = pos; i < length_; ++i) {
>+    if (!tbl[ptr_[i]]) {
>+      return i;
>+    }
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_first_not_of(char c,
>+                                                      size_type pos) const
>+    noexcept {
>+  if (empty()) return npos;
>+  for (; pos < length_; ++pos) {
>+    if (ptr_[pos] != c) {
>+      return pos;
>+    }
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_last_of(string_view s,
>+                                                 size_type pos) const noexcept {
>+  if (empty() || s.empty()) return npos;
>+  // Avoid the cost of LookupTable() for a single-character search.
>+  if (s.length_ == 1) return find_last_of(s.ptr_[0], pos);
>+  LookupTable tbl(s);
>+  for (size_type i = std::min(pos, length_ - 1);; --i) {
>+    if (tbl[ptr_[i]]) {
>+      return i;
>+    }
>+    if (i == 0) break;
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_last_not_of(string_view s,
>+                                                     size_type pos) const
>+    noexcept {
>+  if (empty()) return npos;
>+  size_type i = std::min(pos, length_ - 1);
>+  if (s.empty()) return i;
>+  // Avoid the cost of LookupTable() for a single-character search.
>+  if (s.length_ == 1) return find_last_not_of(s.ptr_[0], pos);
>+  LookupTable tbl(s);
>+  for (;; --i) {
>+    if (!tbl[ptr_[i]]) {
>+      return i;
>+    }
>+    if (i == 0) break;
>+  }
>+  return npos;
>+}
>+
>+string_view::size_type string_view::find_last_not_of(char c,
>+                                                     size_type pos) const
>+    noexcept {
>+  if (empty()) return npos;
>+  size_type i = std::min(pos, length_ - 1);
>+  for (;; --i) {
>+    if (ptr_[i] != c) {
>+      return i;
>+    }
>+    if (i == 0) break;
>+  }
>+  return npos;
>+}
>+
>+// MSVC has non-standard behavior that implicitly creates definitions for static
>+// const members. These implicit definitions conflict with explicit out-of-class
>+// member definitions that are required by the C++ standard, resulting in
>+// LNK1169 "multiply defined" errors at link time. __declspec(selectany) asks
>+// MSVC to choose only one definition for the symbol it decorates. See details
>+// at http://msdn.microsoft.com/en-us/library/34h23df8(v=vs.100).aspx
>+#ifdef _MSC_VER
>+#define ABSL_STRING_VIEW_SELECTANY __declspec(selectany)
>+#else
>+#define ABSL_STRING_VIEW_SELECTANY
>+#endif
>+
>+ABSL_STRING_VIEW_SELECTANY
>+constexpr string_view::size_type string_view::npos;
>+ABSL_STRING_VIEW_SELECTANY
>+constexpr string_view::size_type string_view::kMaxSize;
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_STRING_VIEW
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a7f9199240a217c6a03fa206683f05ca2a9e7003
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view.h
>@@ -0,0 +1,570 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: string_view.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains the definition of the `absl::string_view` class. A
>+// `string_view` points to a contiguous span of characters, often part or all of
>+// another `std::string`, double-quoted std::string literal, character array, or even
>+// another `string_view`.
>+//
>+// This `absl::string_view` abstraction is designed to be a drop-in
>+// replacement for the C++17 `std::string_view` abstraction.
>+#ifndef ABSL_STRINGS_STRING_VIEW_H_
>+#define ABSL_STRINGS_STRING_VIEW_H_
>+
>+#include <algorithm>
>+#include "absl/base/config.h"
>+
>+#ifdef ABSL_HAVE_STD_STRING_VIEW
>+
>+#include <string_view>
>+
>+namespace absl {
>+using std::string_view;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_STRING_VIEW
>+
>+#include <cassert>
>+#include <cstddef>
>+#include <cstring>
>+#include <iosfwd>
>+#include <iterator>
>+#include <limits>
>+#include <string>
>+
>+#include "absl/base/internal/throw_delegate.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+
>+// absl::string_view
>+//
>+// A `string_view` provides a lightweight view into the std::string data provided by
>+// a `std::string`, double-quoted std::string literal, character array, or even
>+// another `string_view`. A `string_view` does *not* own the std::string to which it
>+// points, and that data cannot be modified through the view.
>+//
>+// You can use `string_view` as a function or method parameter anywhere a
>+// parameter can receive a double-quoted std::string literal, `const char*`,
>+// `std::string`, or another `absl::string_view` argument with no need to copy
>+// the std::string data. Systematic use of `string_view` within function arguments
>+// reduces data copies and `strlen()` calls.
>+//
>+// Because of its small size, prefer passing `string_view` by value:
>+//
>+//   void MyFunction(absl::string_view arg);
>+//
>+// If circumstances require, you may also pass one by const reference:
>+//
>+//   void MyFunction(const absl::string_view& arg);  // not preferred
>+//
>+// Passing by value generates slightly smaller code for many architectures.
>+//
>+// In either case, the source data of the `string_view` must outlive the
>+// `string_view` itself.
>+//
>+// A `string_view` is also suitable for local variables if you know that the
>+// lifetime of the underlying object is longer than the lifetime of your
>+// `string_view` variable. However, beware of binding a `string_view` to a
>+// temporary value:
>+//
>+//   // BAD use of string_view: lifetime problem
>+//   absl::string_view sv = obj.ReturnAString();
>+//
>+//   // GOOD use of string_view: str outlives sv
>+//   std::string str = obj.ReturnAString();
>+//   absl::string_view sv = str;
>+//
>+// Due to lifetime issues, a `string_view` is sometimes a poor choice for a
>+// return value and usually a poor choice for a data member. If you do use a
>+// `string_view` this way, it is your responsibility to ensure that the object
>+// pointed to by the `string_view` outlives the `string_view`.
>+//
>+// A `string_view` may represent a whole std::string or just part of a std::string. For
>+// example, when splitting a std::string, `std::vector<absl::string_view>` is a
>+// natural data type for the output.
>+//
>+//
>+// When constructed from a source which is nul-terminated, the `string_view`
>+// itself will not include the nul-terminator unless a specific size (including
>+// the nul) is passed to the constructor. As a result, common idioms that work
>+// on nul-terminated strings do not work on `string_view` objects. If you write
>+// code that scans a `string_view`, you must check its length rather than test
>+// for nul, for example. Note, however, that nuls may still be embedded within
>+// a `string_view` explicitly.
>+//
>+// You may create a null `string_view` in two ways:
>+//
>+//   absl::string_view sv();
>+//   absl::string_view sv(nullptr, 0);
>+//
>+// For the above, `sv.data() == nullptr`, `sv.length() == 0`, and
>+// `sv.empty() == true`. Also, if you create a `string_view` with a non-null
>+// pointer then `sv.data() != nullptr`. Thus, you can use `string_view()` to
>+// signal an undefined value that is different from other `string_view` values
>+// in a similar fashion to how `const char* p1 = nullptr;` is different from
>+// `const char* p2 = "";`. However, in practice, it is not recommended to rely
>+// on this behavior.
>+//
>+// Be careful not to confuse a null `string_view` with an empty one. A null
>+// `string_view` is an empty `string_view`, but some empty `string_view`s are
>+// not null. Prefer checking for emptiness over checking for null.
>+//
>+// There are many ways to create an empty string_view:
>+//
>+//   const char* nullcp = nullptr;
>+//   // string_view.size() will return 0 in all cases.
>+//   absl::string_view();
>+//   absl::string_view(nullcp, 0);
>+//   absl::string_view("");
>+//   absl::string_view("", 0);
>+//   absl::string_view("abcdef", 0);
>+//   absl::string_view("abcdef" + 6, 0);
>+//
>+// All empty `string_view` objects whether null or not, are equal:
>+//
>+//   absl::string_view() == absl::string_view("", 0)
>+//   absl::string_view(nullptr, 0) == absl:: string_view("abcdef"+6, 0)
>+class string_view {
>+ public:
>+  using traits_type = std::char_traits<char>;
>+  using value_type = char;
>+  using pointer = char*;
>+  using const_pointer = const char*;
>+  using reference = char&;
>+  using const_reference = const char&;
>+  using const_iterator = const char*;
>+  using iterator = const_iterator;
>+  using const_reverse_iterator = std::reverse_iterator<const_iterator>;
>+  using reverse_iterator = const_reverse_iterator;
>+  using size_type = size_t;
>+  using difference_type = std::ptrdiff_t;
>+
>+  static constexpr size_type npos = static_cast<size_type>(-1);
>+
>+  // Null `string_view` constructor
>+  constexpr string_view() noexcept : ptr_(nullptr), length_(0) {}
>+
>+  // Implicit constructors
>+
>+  template <typename Allocator>
>+  string_view(  // NOLINT(runtime/explicit)
>+      const std::basic_string<char, std::char_traits<char>, Allocator>&
>+          str) noexcept
>+      : ptr_(str.data()), length_(CheckLengthInternal(str.size())) {}
>+
>+  // Implicit constructor of a `string_view` from nul-terminated `str`. When
>+  // accepting possibly null strings, use `absl::NullSafeStringView(str)`
>+  // instead (see below).
>+  constexpr string_view(const char* str)  // NOLINT(runtime/explicit)
>+      : ptr_(str), length_(CheckLengthInternal(StrLenInternal(str))) {}
>+
>+  // Implicit constructor of a `string_view` from a `const char*` and length.
>+  constexpr string_view(const char* data, size_type len)
>+      : ptr_(data), length_(CheckLengthInternal(len)) {}
>+
>+  // NOTE: Harmlessly omitted to work around gdb bug.
>+  //   constexpr string_view(const string_view&) noexcept = default;
>+  //   string_view& operator=(const string_view&) noexcept = default;
>+
>+  // Iterators
>+
>+  // string_view::begin()
>+  //
>+  // Returns an iterator pointing to the first character at the beginning of the
>+  // `string_view`, or `end()` if the `string_view` is empty.
>+  constexpr const_iterator begin() const noexcept { return ptr_; }
>+
>+  // string_view::end()
>+  //
>+  // Returns an iterator pointing just beyond the last character at the end of
>+  // the `string_view`. This iterator acts as a placeholder; attempting to
>+  // access it results in undefined behavior.
>+  constexpr const_iterator end() const noexcept { return ptr_ + length_; }
>+
>+  // string_view::cbegin()
>+  //
>+  // Returns a const iterator pointing to the first character at the beginning
>+  // of the `string_view`, or `end()` if the `string_view` is empty.
>+  constexpr const_iterator cbegin() const noexcept { return begin(); }
>+
>+  // string_view::cend()
>+  //
>+  // Returns a const iterator pointing just beyond the last character at the end
>+  // of the `string_view`. This pointer acts as a placeholder; attempting to
>+  // access its element results in undefined behavior.
>+  constexpr const_iterator cend() const noexcept { return end(); }
>+
>+  // string_view::rbegin()
>+  //
>+  // Returns a reverse iterator pointing to the last character at the end of the
>+  // `string_view`, or `rend()` if the `string_view` is empty.
>+  const_reverse_iterator rbegin() const noexcept {
>+    return const_reverse_iterator(end());
>+  }
>+
>+  // string_view::rend()
>+  //
>+  // Returns a reverse iterator pointing just before the first character at the
>+  // beginning of the `string_view`. This pointer acts as a placeholder;
>+  // attempting to access its element results in undefined behavior.
>+  const_reverse_iterator rend() const noexcept {
>+    return const_reverse_iterator(begin());
>+  }
>+
>+  // string_view::crbegin()
>+  //
>+  // Returns a const reverse iterator pointing to the last character at the end
>+  // of the `string_view`, or `crend()` if the `string_view` is empty.
>+  const_reverse_iterator crbegin() const noexcept { return rbegin(); }
>+
>+  // string_view::crend()
>+  //
>+  // Returns a const reverse iterator pointing just before the first character
>+  // at the beginning of the `string_view`. This pointer acts as a placeholder;
>+  // attempting to access its element results in undefined behavior.
>+  const_reverse_iterator crend() const noexcept { return rend(); }
>+
>+  // Capacity Utilities
>+
>+  // string_view::size()
>+  //
>+  // Returns the number of characters in the `string_view`.
>+  constexpr size_type size() const noexcept {
>+    return length_;
>+  }
>+
>+  // string_view::length()
>+  //
>+  // Returns the number of characters in the `string_view`. Alias for `size()`.
>+  constexpr size_type length() const noexcept { return size(); }
>+
>+  // string_view::max_size()
>+  //
>+  // Returns the maximum number of characters the `string_view` can hold.
>+  constexpr size_type max_size() const noexcept { return kMaxSize; }
>+
>+  // string_view::empty()
>+  //
>+  // Checks if the `string_view` is empty (refers to no characters).
>+  constexpr bool empty() const noexcept { return length_ == 0; }
>+
>+  // std::string:view::operator[]
>+  //
>+  // Returns the ith element of an `string_view` using the array operator.
>+  // Note that this operator does not perform any bounds checking.
>+  constexpr const_reference operator[](size_type i) const { return ptr_[i]; }
>+
>+  // string_view::front()
>+  //
>+  // Returns the first element of a `string_view`.
>+  constexpr const_reference front() const { return ptr_[0]; }
>+
>+  // string_view::back()
>+  //
>+  // Returns the last element of a `string_view`.
>+  constexpr const_reference back() const { return ptr_[size() - 1]; }
>+
>+  // string_view::data()
>+  //
>+  // Returns a pointer to the underlying character array (which is of course
>+  // stored elsewhere). Note that `string_view::data()` may contain embedded nul
>+  // characters, but the returned buffer may or may not be nul-terminated;
>+  // therefore, do not pass `data()` to a routine that expects a nul-terminated
>+  // std::string.
>+  constexpr const_pointer data() const noexcept { return ptr_; }
>+
>+  // Modifiers
>+
>+  // string_view::remove_prefix()
>+  //
>+  // Removes the first `n` characters from the `string_view`. Note that the
>+  // underlying std::string is not changed, only the view.
>+  void remove_prefix(size_type n) {
>+    assert(n <= length_);
>+    ptr_ += n;
>+    length_ -= n;
>+  }
>+
>+  // string_view::remove_suffix()
>+  //
>+  // Removes the last `n` characters from the `string_view`. Note that the
>+  // underlying std::string is not changed, only the view.
>+  void remove_suffix(size_type n) {
>+    assert(n <= length_);
>+    length_ -= n;
>+  }
>+
>+  // string_view::swap()
>+  //
>+  // Swaps this `string_view` with another `string_view`.
>+  void swap(string_view& s) noexcept {
>+    auto t = *this;
>+    *this = s;
>+    s = t;
>+  }
>+
>+  // Explicit conversion operators
>+
>+  // Converts to `std::basic_string`.
>+  template <typename A>
>+  explicit operator std::basic_string<char, traits_type, A>() const {
>+    if (!data()) return {};
>+    return std::basic_string<char, traits_type, A>(data(), size());
>+  }
>+
>+  // string_view::copy()
>+  //
>+  // Copies the contents of the `string_view` at offset `pos` and length `n`
>+  // into `buf`.
>+  size_type copy(char* buf, size_type n, size_type pos = 0) const;
>+
>+  // string_view::substr()
>+  //
>+  // Returns a "substring" of the `string_view` (at offset `pos` and length
>+  // `n`) as another string_view. This function throws `std::out_of_bounds` if
>+  // `pos > size'.
>+  string_view substr(size_type pos, size_type n = npos) const {
>+    if (ABSL_PREDICT_FALSE(pos > length_))
>+      base_internal::ThrowStdOutOfRange("absl::string_view::substr");
>+    n = std::min(n, length_ - pos);
>+    return string_view(ptr_ + pos, n);
>+  }
>+
>+  // string_view::compare()
>+  //
>+  // Performs a lexicographical comparison between the `string_view` and
>+  // another `absl::string_view), returning -1 if `this` is less than, 0 if
>+  // `this` is equal to, and 1 if `this` is greater than the passed std::string
>+  // view. Note that in the case of data equality, a further comparison is made
>+  // on the respective sizes of the two `string_view`s to determine which is
>+  // smaller, equal, or greater.
>+  int compare(string_view x) const noexcept {
>+    auto min_length = std::min(length_, x.length_);
>+    if (min_length > 0) {
>+      int r = memcmp(ptr_, x.ptr_, min_length);
>+      if (r < 0) return -1;
>+      if (r > 0) return 1;
>+    }
>+    if (length_ < x.length_) return -1;
>+    if (length_ > x.length_) return 1;
>+    return 0;
>+  }
>+
>+  // Overload of `string_view::compare()` for comparing a substring of the
>+  // 'string_view` and another `absl::string_view`.
>+  int compare(size_type pos1, size_type count1, string_view v) const {
>+    return substr(pos1, count1).compare(v);
>+  }
>+
>+  // Overload of `string_view::compare()` for comparing a substring of the
>+  // `string_view` and a substring of another `absl::string_view`.
>+  int compare(size_type pos1, size_type count1, string_view v, size_type pos2,
>+              size_type count2) const {
>+    return substr(pos1, count1).compare(v.substr(pos2, count2));
>+  }
>+
>+  // Overload of `string_view::compare()` for comparing a `string_view` and a
>+  // a different  C-style std::string `s`.
>+  int compare(const char* s) const { return compare(string_view(s)); }
>+
>+  // Overload of `string_view::compare()` for comparing a substring of the
>+  // `string_view` and a different std::string C-style std::string `s`.
>+  int compare(size_type pos1, size_type count1, const char* s) const {
>+    return substr(pos1, count1).compare(string_view(s));
>+  }
>+
>+  // Overload of `string_view::compare()` for comparing a substring of the
>+  // `string_view` and a substring of a different C-style std::string `s`.
>+  int compare(size_type pos1, size_type count1, const char* s,
>+              size_type count2) const {
>+    return substr(pos1, count1).compare(string_view(s, count2));
>+  }
>+
>+  // Find Utilities
>+
>+  // string_view::find()
>+  //
>+  // Finds the first occurrence of the substring `s` within the `string_view`,
>+  // returning the position of the first character's match, or `npos` if no
>+  // match was found.
>+  size_type find(string_view s, size_type pos = 0) const noexcept;
>+
>+  // Overload of `string_view::find()` for finding the given character `c`
>+  // within the `string_view`.
>+  size_type find(char c, size_type pos = 0) const noexcept;
>+
>+  // string_view::rfind()
>+  //
>+  // Finds the last occurrence of a substring `s` within the `string_view`,
>+  // returning the position of the first character's match, or `npos` if no
>+  // match was found.
>+  size_type rfind(string_view s, size_type pos = npos) const
>+      noexcept;
>+
>+  // Overload of `string_view::rfind()` for finding the last given character `c`
>+  // within the `string_view`.
>+  size_type rfind(char c, size_type pos = npos) const noexcept;
>+
>+  // string_view::find_first_of()
>+  //
>+  // Finds the first occurrence of any of the characters in `s` within the
>+  // `string_view`, returning the start position of the match, or `npos` if no
>+  // match was found.
>+  size_type find_first_of(string_view s, size_type pos = 0) const
>+      noexcept;
>+
>+  // Overload of `string_view::find_first_of()` for finding a character `c`
>+  // within the `string_view`.
>+  size_type find_first_of(char c, size_type pos = 0) const
>+      noexcept {
>+    return find(c, pos);
>+  }
>+
>+  // string_view::find_last_of()
>+  //
>+  // Finds the last occurrence of any of the characters in `s` within the
>+  // `string_view`, returning the start position of the match, or `npos` if no
>+  // match was found.
>+  size_type find_last_of(string_view s, size_type pos = npos) const
>+      noexcept;
>+
>+  // Overload of `string_view::find_last_of()` for finding a character `c`
>+  // within the `string_view`.
>+  size_type find_last_of(char c, size_type pos = npos) const
>+      noexcept {
>+    return rfind(c, pos);
>+  }
>+
>+  // string_view::find_first_not_of()
>+  //
>+  // Finds the first occurrence of any of the characters not in `s` within the
>+  // `string_view`, returning the start position of the first non-match, or
>+  // `npos` if no non-match was found.
>+  size_type find_first_not_of(string_view s, size_type pos = 0) const noexcept;
>+
>+  // Overload of `string_view::find_first_not_of()` for finding a character
>+  // that is not `c` within the `string_view`.
>+  size_type find_first_not_of(char c, size_type pos = 0) const noexcept;
>+
>+  // string_view::find_last_not_of()
>+  //
>+  // Finds the last occurrence of any of the characters not in `s` within the
>+  // `string_view`, returning the start position of the last non-match, or
>+  // `npos` if no non-match was found.
>+  size_type find_last_not_of(string_view s,
>+                                          size_type pos = npos) const noexcept;
>+
>+  // Overload of `string_view::find_last_not_of()` for finding a character
>+  // that is not `c` within the `string_view`.
>+  size_type find_last_not_of(char c, size_type pos = npos) const
>+      noexcept;
>+
>+ private:
>+  static constexpr size_type kMaxSize =
>+      std::numeric_limits<difference_type>::max();
>+
>+  // check whether __builtin_strlen is provided by the compiler.
>+  // GCC doesn't have __has_builtin()
>+  // (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66970),
>+  // but has __builtin_strlen according to
>+  // https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Other-Builtins.html.
>+#if ABSL_HAVE_BUILTIN(__builtin_strlen) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+  static constexpr size_type StrLenInternal(const char* str) {
>+    return str ? __builtin_strlen(str) : 0;
>+  }
>+#else
>+  static constexpr size_type StrLenInternal(const char* str) {
>+    return str ? strlen(str) : 0;
>+  }
>+#endif
>+
>+  static constexpr size_type CheckLengthInternal(size_type len) {
>+    return ABSL_ASSERT(len <= kMaxSize), len;
>+  }
>+
>+  const char* ptr_;
>+  size_type length_;
>+};
>+
>+// This large function is defined inline so that in a fairly common case where
>+// one of the arguments is a literal, the compiler can elide a lot of the
>+// following comparisons.
>+inline bool operator==(string_view x, string_view y) noexcept {
>+  auto len = x.size();
>+  if (len != y.size()) {
>+    return false;
>+  }
>+  return x.data() == y.data() || len <= 0 ||
>+         memcmp(x.data(), y.data(), len) == 0;
>+}
>+
>+inline bool operator!=(string_view x, string_view y) noexcept {
>+  return !(x == y);
>+}
>+
>+inline bool operator<(string_view x, string_view y) noexcept {
>+  auto min_size = std::min(x.size(), y.size());
>+  const int r = min_size == 0 ? 0 : memcmp(x.data(), y.data(), min_size);
>+  return (r < 0) || (r == 0 && x.size() < y.size());
>+}
>+
>+inline bool operator>(string_view x, string_view y) noexcept { return y < x; }
>+
>+inline bool operator<=(string_view x, string_view y) noexcept {
>+  return !(y < x);
>+}
>+
>+inline bool operator>=(string_view x, string_view y) noexcept {
>+  return !(x < y);
>+}
>+
>+// IO Insertion Operator
>+std::ostream& operator<<(std::ostream& o, string_view piece);
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_STRING_VIEW
>+
>+namespace absl {
>+
>+// ClippedSubstr()
>+//
>+// Like `s.substr(pos, n)`, but clips `pos` to an upper bound of `s.size()`.
>+// Provided because std::string_view::substr throws if `pos > size()`
>+inline string_view ClippedSubstr(string_view s, size_t pos,
>+                                 size_t n = string_view::npos) {
>+  pos = std::min(pos, static_cast<size_t>(s.size()));
>+  return s.substr(pos, n);
>+}
>+
>+// NullSafeStringView()
>+//
>+// Creates an `absl::string_view` from a pointer `p` even if it's null-valued.
>+// This function should be used where an `absl::string_view` can be created from
>+// a possibly-null pointer.
>+inline string_view NullSafeStringView(const char* p) {
>+  return p ? string_view(p) : string_view();
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STRING_VIEW_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fb46db18b3c3902b0d7d68ecb53b06a57ad55d3f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_benchmark.cc
>@@ -0,0 +1,329 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/string_view.h"
>+
>+#include <algorithm>
>+#include <cstdint>
>+#include <map>
>+#include <random>
>+#include <string>
>+#include <unordered_set>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/macros.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+// Provide a forcibly out-of-line wrapper for operator== that can be used in
>+// benchmarks to measure the impact of inlining.
>+ABSL_ATTRIBUTE_NOINLINE
>+bool NonInlinedEq(absl::string_view a, absl::string_view b) { return a == b; }
>+
>+// We use functions that cannot be inlined to perform the comparison loops so
>+// that inlining of the operator== can't optimize away *everything*.
>+ABSL_ATTRIBUTE_NOINLINE
>+void DoEqualityComparisons(benchmark::State& state, absl::string_view a,
>+                           absl::string_view b) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(a == b);
>+  }
>+}
>+
>+void BM_EqualIdentical(benchmark::State& state) {
>+  std::string x(state.range(0), 'a');
>+  DoEqualityComparisons(state, x, x);
>+}
>+BENCHMARK(BM_EqualIdentical)->DenseRange(0, 3)->Range(4, 1 << 10);
>+
>+void BM_EqualSame(benchmark::State& state) {
>+  std::string x(state.range(0), 'a');
>+  std::string y = x;
>+  DoEqualityComparisons(state, x, y);
>+}
>+BENCHMARK(BM_EqualSame)
>+    ->DenseRange(0, 10)
>+    ->Arg(20)
>+    ->Arg(40)
>+    ->Arg(70)
>+    ->Arg(110)
>+    ->Range(160, 4096);
>+
>+void BM_EqualDifferent(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::string x(len, 'a');
>+  std::string y = x;
>+  if (len > 0) {
>+    y[len - 1] = 'b';
>+  }
>+  DoEqualityComparisons(state, x, y);
>+}
>+BENCHMARK(BM_EqualDifferent)->DenseRange(0, 3)->Range(4, 1 << 10);
>+
>+// This benchmark is intended to check that important simplifications can be
>+// made with absl::string_view comparisons against constant strings. The idea is
>+// that if constant strings cause redundant components of the comparison, the
>+// compiler should detect and eliminate them. Here we use 8 different strings,
>+// each with the same size. Provided our comparison makes the implementation
>+// inline-able by the compiler, it should fold all of these away into a single
>+// size check once per loop iteration.
>+ABSL_ATTRIBUTE_NOINLINE
>+void DoConstantSizeInlinedEqualityComparisons(benchmark::State& state,
>+                                              absl::string_view a) {
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(a == "aaa");
>+    benchmark::DoNotOptimize(a == "bbb");
>+    benchmark::DoNotOptimize(a == "ccc");
>+    benchmark::DoNotOptimize(a == "ddd");
>+    benchmark::DoNotOptimize(a == "eee");
>+    benchmark::DoNotOptimize(a == "fff");
>+    benchmark::DoNotOptimize(a == "ggg");
>+    benchmark::DoNotOptimize(a == "hhh");
>+  }
>+}
>+void BM_EqualConstantSizeInlined(benchmark::State& state) {
>+  std::string x(state.range(0), 'a');
>+  DoConstantSizeInlinedEqualityComparisons(state, x);
>+}
>+// We only need to check for size of 3, and <> 3 as this benchmark only has to
>+// do with size differences.
>+BENCHMARK(BM_EqualConstantSizeInlined)->DenseRange(2, 4);
>+
>+// This benchmark exists purely to give context to the above timings: this is
>+// what they would look like if the compiler is completely unable to simplify
>+// between two comparisons when they are comparing against constant strings.
>+ABSL_ATTRIBUTE_NOINLINE
>+void DoConstantSizeNonInlinedEqualityComparisons(benchmark::State& state,
>+                                                 absl::string_view a) {
>+  for (auto _ : state) {
>+    // Force these out-of-line to compare with the above function.
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "aaa"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "bbb"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "ccc"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "ddd"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "eee"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "fff"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "ggg"));
>+    benchmark::DoNotOptimize(NonInlinedEq(a, "hhh"));
>+  }
>+}
>+
>+void BM_EqualConstantSizeNonInlined(benchmark::State& state) {
>+  std::string x(state.range(0), 'a');
>+  DoConstantSizeNonInlinedEqualityComparisons(state, x);
>+}
>+// We only need to check for size of 3, and <> 3 as this benchmark only has to
>+// do with size differences.
>+BENCHMARK(BM_EqualConstantSizeNonInlined)->DenseRange(2, 4);
>+
>+void BM_CompareSame(benchmark::State& state) {
>+  const int len = state.range(0);
>+  std::string x;
>+  for (int i = 0; i < len; i++) {
>+    x += 'a';
>+  }
>+  std::string y = x;
>+  absl::string_view a = x;
>+  absl::string_view b = y;
>+
>+  for (auto _ : state) {
>+    benchmark::DoNotOptimize(a.compare(b));
>+  }
>+}
>+BENCHMARK(BM_CompareSame)->DenseRange(0, 3)->Range(4, 1 << 10);
>+
>+void BM_find_string_view_len_one(benchmark::State& state) {
>+  std::string haystack(state.range(0), '0');
>+  absl::string_view s(haystack);
>+  for (auto _ : state) {
>+    s.find("x");  // not present; length 1
>+  }
>+}
>+BENCHMARK(BM_find_string_view_len_one)->Range(1, 1 << 20);
>+
>+void BM_find_string_view_len_two(benchmark::State& state) {
>+  std::string haystack(state.range(0), '0');
>+  absl::string_view s(haystack);
>+  for (auto _ : state) {
>+    s.find("xx");  // not present; length 2
>+  }
>+}
>+BENCHMARK(BM_find_string_view_len_two)->Range(1, 1 << 20);
>+
>+void BM_find_one_char(benchmark::State& state) {
>+  std::string haystack(state.range(0), '0');
>+  absl::string_view s(haystack);
>+  for (auto _ : state) {
>+    s.find('x');  // not present
>+  }
>+}
>+BENCHMARK(BM_find_one_char)->Range(1, 1 << 20);
>+
>+void BM_rfind_one_char(benchmark::State& state) {
>+  std::string haystack(state.range(0), '0');
>+  absl::string_view s(haystack);
>+  for (auto _ : state) {
>+    s.rfind('x');  // not present
>+  }
>+}
>+BENCHMARK(BM_rfind_one_char)->Range(1, 1 << 20);
>+
>+void BM_worst_case_find_first_of(benchmark::State& state, int haystack_len) {
>+  const int needle_len = state.range(0);
>+  std::string needle;
>+  for (int i = 0; i < needle_len; ++i) {
>+    needle += 'a' + i;
>+  }
>+  std::string haystack(haystack_len, '0');  // 1000 zeros.
>+
>+  absl::string_view s(haystack);
>+  for (auto _ : state) {
>+    s.find_first_of(needle);
>+  }
>+}
>+
>+void BM_find_first_of_short(benchmark::State& state) {
>+  BM_worst_case_find_first_of(state, 10);
>+}
>+
>+void BM_find_first_of_medium(benchmark::State& state) {
>+  BM_worst_case_find_first_of(state, 100);
>+}
>+
>+void BM_find_first_of_long(benchmark::State& state) {
>+  BM_worst_case_find_first_of(state, 1000);
>+}
>+
>+BENCHMARK(BM_find_first_of_short)->DenseRange(0, 4)->Arg(8)->Arg(16)->Arg(32);
>+BENCHMARK(BM_find_first_of_medium)->DenseRange(0, 4)->Arg(8)->Arg(16)->Arg(32);
>+BENCHMARK(BM_find_first_of_long)->DenseRange(0, 4)->Arg(8)->Arg(16)->Arg(32);
>+
>+struct EasyMap : public std::map<absl::string_view, uint64_t> {
>+  explicit EasyMap(size_t) {}
>+};
>+
>+// This templated benchmark helper function is intended to stress operator== or
>+// operator< in a realistic test.  It surely isn't entirely realistic, but it's
>+// a start.  The test creates a map of type Map, a template arg, and populates
>+// it with table_size key/value pairs. Each key has WordsPerKey words.  After
>+// creating the map, a number of lookups are done in random order.  Some keys
>+// are used much more frequently than others in this phase of the test.
>+template <typename Map, int WordsPerKey>
>+void StringViewMapBenchmark(benchmark::State& state) {
>+  const int table_size = state.range(0);
>+  const double kFractionOfKeysThatAreHot = 0.2;
>+  const int kNumLookupsOfHotKeys = 20;
>+  const int kNumLookupsOfColdKeys = 1;
>+  const char* words[] = {"the",   "quick",  "brown",    "fox",      "jumped",
>+                         "over",  "the",    "lazy",     "dog",      "and",
>+                         "found", "a",      "large",    "mushroom", "and",
>+                         "a",     "couple", "crickets", "eating",   "pie"};
>+  // Create some keys that consist of words in random order.
>+  std::random_device r;
>+  std::seed_seq seed({r(), r(), r(), r(), r(), r(), r(), r()});
>+  std::mt19937 rng(seed);
>+  std::vector<std::string> keys(table_size);
>+  std::vector<int> all_indices;
>+  const int kBlockSize = 1 << 12;
>+  std::unordered_set<std::string> t(kBlockSize);
>+  std::uniform_int_distribution<int> uniform(0, ABSL_ARRAYSIZE(words) - 1);
>+  for (int i = 0; i < table_size; i++) {
>+    all_indices.push_back(i);
>+    do {
>+      keys[i].clear();
>+      for (int j = 0; j < WordsPerKey; j++) {
>+        absl::StrAppend(&keys[i], j > 0 ? " " : "", words[uniform(rng)]);
>+      }
>+    } while (!t.insert(keys[i]).second);
>+  }
>+
>+  // Create a list of strings to lookup: a permutation of the array of
>+  // keys we just created, with repeats.  "Hot" keys get repeated more.
>+  std::shuffle(all_indices.begin(), all_indices.end(), rng);
>+  const int num_hot = table_size * kFractionOfKeysThatAreHot;
>+  const int num_cold = table_size - num_hot;
>+  std::vector<int> hot_indices(all_indices.begin(),
>+                               all_indices.begin() + num_hot);
>+  std::vector<int> indices;
>+  for (int i = 0; i < kNumLookupsOfColdKeys; i++) {
>+    indices.insert(indices.end(), all_indices.begin(), all_indices.end());
>+  }
>+  for (int i = 0; i < kNumLookupsOfHotKeys - kNumLookupsOfColdKeys; i++) {
>+    indices.insert(indices.end(), hot_indices.begin(), hot_indices.end());
>+  }
>+  std::shuffle(indices.begin(), indices.end(), rng);
>+  ABSL_RAW_CHECK(
>+      num_cold * kNumLookupsOfColdKeys + num_hot * kNumLookupsOfHotKeys ==
>+          indices.size(),
>+      "");
>+  // After constructing the array we probe it with absl::string_views built from
>+  // test_strings.  This means operator== won't see equal pointers, so
>+  // it'll have to check for equal lengths and equal characters.
>+  std::vector<std::string> test_strings(indices.size());
>+  for (int i = 0; i < indices.size(); i++) {
>+    test_strings[i] = keys[indices[i]];
>+  }
>+
>+  // Run the benchmark. It includes map construction but is mostly
>+  // map lookups.
>+  for (auto _ : state) {
>+    Map h(table_size);
>+    for (int i = 0; i < table_size; i++) {
>+      h[keys[i]] = i * 2;
>+    }
>+    ABSL_RAW_CHECK(h.size() == table_size, "");
>+    uint64_t sum = 0;
>+    for (int i = 0; i < indices.size(); i++) {
>+      sum += h[test_strings[i]];
>+    }
>+    benchmark::DoNotOptimize(sum);
>+  }
>+}
>+
>+void BM_StdMap_4(benchmark::State& state) {
>+  StringViewMapBenchmark<EasyMap, 4>(state);
>+}
>+BENCHMARK(BM_StdMap_4)->Range(1 << 10, 1 << 16);
>+
>+void BM_StdMap_8(benchmark::State& state) {
>+  StringViewMapBenchmark<EasyMap, 8>(state);
>+}
>+BENCHMARK(BM_StdMap_8)->Range(1 << 10, 1 << 16);
>+
>+void BM_CopyToStringNative(benchmark::State& state) {
>+  std::string src(state.range(0), 'x');
>+  absl::string_view sv(src);
>+  std::string dst;
>+  for (auto _ : state) {
>+    dst.assign(sv.begin(), sv.end());
>+  }
>+}
>+BENCHMARK(BM_CopyToStringNative)->Range(1 << 3, 1 << 12);
>+
>+void BM_AppendToStringNative(benchmark::State& state) {
>+  std::string src(state.range(0), 'x');
>+  absl::string_view sv(src);
>+  std::string dst;
>+  for (auto _ : state) {
>+    dst.clear();
>+    dst.insert(dst.end(), sv.begin(), sv.end());
>+  }
>+}
>+BENCHMARK(BM_AppendToStringNative)->Range(1 << 3, 1 << 12);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b19d07c7fd61d821223bfc0bf97b2a2a6234d38c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/string_view_test.cc
>@@ -0,0 +1,1146 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/string_view.h"
>+
>+#include <stdlib.h>
>+#include <iomanip>
>+#include <iterator>
>+#include <limits>
>+#include <map>
>+#include <sstream>
>+#include <stdexcept>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+#include "absl/base/dynamic_annotations.h"
>+
>+#ifdef __ANDROID__
>+// Android assert messages only go to system log, so death tests cannot inspect
>+// the message for matching.
>+#define ABSL_EXPECT_DEATH_IF_SUPPORTED(statement, regex) \
>+  EXPECT_DEATH_IF_SUPPORTED(statement, ".*")
>+#else
>+#define ABSL_EXPECT_DEATH_IF_SUPPORTED EXPECT_DEATH_IF_SUPPORTED
>+#endif
>+
>+namespace {
>+
>+// A minimal allocator that uses malloc().
>+template <typename T>
>+struct Mallocator {
>+  typedef T value_type;
>+  typedef size_t size_type;
>+  typedef ptrdiff_t difference_type;
>+  typedef T* pointer;
>+  typedef const T* const_pointer;
>+  typedef T& reference;
>+  typedef const T& const_reference;
>+
>+  size_type max_size() const {
>+    return size_t(std::numeric_limits<size_type>::max()) / sizeof(value_type);
>+  }
>+  template <typename U>
>+  struct rebind {
>+    typedef Mallocator<U> other;
>+  };
>+  Mallocator() = default;
>+  template <class U>
>+  Mallocator(const Mallocator<U>&) {}  // NOLINT(runtime/explicit)
>+
>+  T* allocate(size_t n) { return static_cast<T*>(std::malloc(n * sizeof(T))); }
>+  void deallocate(T* p, size_t) { std::free(p); }
>+};
>+template <typename T, typename U>
>+bool operator==(const Mallocator<T>&, const Mallocator<U>&) {
>+  return true;
>+}
>+template <typename T, typename U>
>+bool operator!=(const Mallocator<T>&, const Mallocator<U>&) {
>+  return false;
>+}
>+
>+TEST(StringViewTest, Ctor) {
>+  {
>+    // Null.
>+    absl::string_view s10;
>+    EXPECT_TRUE(s10.data() == nullptr);
>+    EXPECT_EQ(0, s10.length());
>+  }
>+
>+  {
>+    // const char* without length.
>+    const char* hello = "hello";
>+    absl::string_view s20(hello);
>+    EXPECT_TRUE(s20.data() == hello);
>+    EXPECT_EQ(5, s20.length());
>+
>+    // const char* with length.
>+    absl::string_view s21(hello, 4);
>+    EXPECT_TRUE(s21.data() == hello);
>+    EXPECT_EQ(4, s21.length());
>+
>+    // Not recommended, but valid C++
>+    absl::string_view s22(hello, 6);
>+    EXPECT_TRUE(s22.data() == hello);
>+    EXPECT_EQ(6, s22.length());
>+  }
>+
>+  {
>+    // std::string.
>+    std::string hola = "hola";
>+    absl::string_view s30(hola);
>+    EXPECT_TRUE(s30.data() == hola.data());
>+    EXPECT_EQ(4, s30.length());
>+
>+    // std::string with embedded '\0'.
>+    hola.push_back('\0');
>+    hola.append("h2");
>+    hola.push_back('\0');
>+    absl::string_view s31(hola);
>+    EXPECT_TRUE(s31.data() == hola.data());
>+    EXPECT_EQ(8, s31.length());
>+  }
>+
>+  {
>+    using mstring =
>+        std::basic_string<char, std::char_traits<char>, Mallocator<char>>;
>+    mstring str1("BUNGIE-JUMPING!");
>+    const mstring str2("SLEEPING!");
>+
>+    absl::string_view s1(str1);
>+    s1.remove_prefix(strlen("BUNGIE-JUM"));
>+
>+    absl::string_view s2(str2);
>+    s2.remove_prefix(strlen("SLEE"));
>+
>+    EXPECT_EQ(s1, s2);
>+    EXPECT_EQ(s1, "PING!");
>+  }
>+
>+  // TODO(mec): absl::string_view(const absl::string_view&);
>+}
>+
>+TEST(StringViewTest, Swap) {
>+  absl::string_view a("a");
>+  absl::string_view b("bbb");
>+  EXPECT_TRUE(noexcept(a.swap(b)));
>+  a.swap(b);
>+  EXPECT_EQ(a, "bbb");
>+  EXPECT_EQ(b, "a");
>+  a.swap(b);
>+  EXPECT_EQ(a, "a");
>+  EXPECT_EQ(b, "bbb");
>+}
>+
>+TEST(StringViewTest, STLComparator) {
>+  std::string s1("foo");
>+  std::string s2("bar");
>+  std::string s3("baz");
>+
>+  absl::string_view p1(s1);
>+  absl::string_view p2(s2);
>+  absl::string_view p3(s3);
>+
>+  typedef std::map<absl::string_view, int> TestMap;
>+  TestMap map;
>+
>+  map.insert(std::make_pair(p1, 0));
>+  map.insert(std::make_pair(p2, 1));
>+  map.insert(std::make_pair(p3, 2));
>+  EXPECT_EQ(map.size(), 3);
>+
>+  TestMap::const_iterator iter = map.begin();
>+  EXPECT_EQ(iter->second, 1);
>+  ++iter;
>+  EXPECT_EQ(iter->second, 2);
>+  ++iter;
>+  EXPECT_EQ(iter->second, 0);
>+  ++iter;
>+  EXPECT_TRUE(iter == map.end());
>+
>+  TestMap::iterator new_iter = map.find("zot");
>+  EXPECT_TRUE(new_iter == map.end());
>+
>+  new_iter = map.find("bar");
>+  EXPECT_TRUE(new_iter != map.end());
>+
>+  map.erase(new_iter);
>+  EXPECT_EQ(map.size(), 2);
>+
>+  iter = map.begin();
>+  EXPECT_EQ(iter->second, 2);
>+  ++iter;
>+  EXPECT_EQ(iter->second, 0);
>+  ++iter;
>+  EXPECT_TRUE(iter == map.end());
>+}
>+
>+#define COMPARE(result, op, x, y)                                      \
>+  EXPECT_EQ(result, absl::string_view((x)) op absl::string_view((y))); \
>+  EXPECT_EQ(result, absl::string_view((x)).compare(absl::string_view((y))) op 0)
>+
>+TEST(StringViewTest, ComparisonOperators) {
>+  COMPARE(true, ==, "",   "");
>+  COMPARE(true, ==, "", absl::string_view());
>+  COMPARE(true, ==, absl::string_view(), "");
>+  COMPARE(true, ==, "a",  "a");
>+  COMPARE(true, ==, "aa", "aa");
>+  COMPARE(false, ==, "a",  "");
>+  COMPARE(false, ==, "",   "a");
>+  COMPARE(false, ==, "a",  "b");
>+  COMPARE(false, ==, "a",  "aa");
>+  COMPARE(false, ==, "aa", "a");
>+
>+  COMPARE(false, !=, "",   "");
>+  COMPARE(false, !=, "a",  "a");
>+  COMPARE(false, !=, "aa", "aa");
>+  COMPARE(true, !=, "a",  "");
>+  COMPARE(true, !=, "",   "a");
>+  COMPARE(true, !=, "a",  "b");
>+  COMPARE(true, !=, "a",  "aa");
>+  COMPARE(true, !=, "aa", "a");
>+
>+  COMPARE(true, <, "a",  "b");
>+  COMPARE(true, <, "a",  "aa");
>+  COMPARE(true, <, "aa", "b");
>+  COMPARE(true, <, "aa", "bb");
>+  COMPARE(false, <, "a",  "a");
>+  COMPARE(false, <, "b",  "a");
>+  COMPARE(false, <, "aa", "a");
>+  COMPARE(false, <, "b",  "aa");
>+  COMPARE(false, <, "bb", "aa");
>+
>+  COMPARE(true, <=, "a",  "a");
>+  COMPARE(true, <=, "a",  "b");
>+  COMPARE(true, <=, "a",  "aa");
>+  COMPARE(true, <=, "aa", "b");
>+  COMPARE(true, <=, "aa", "bb");
>+  COMPARE(false, <=, "b",  "a");
>+  COMPARE(false, <=, "aa", "a");
>+  COMPARE(false, <=, "b",  "aa");
>+  COMPARE(false, <=, "bb", "aa");
>+
>+  COMPARE(false, >=, "a",  "b");
>+  COMPARE(false, >=, "a",  "aa");
>+  COMPARE(false, >=, "aa", "b");
>+  COMPARE(false, >=, "aa", "bb");
>+  COMPARE(true, >=, "a",  "a");
>+  COMPARE(true, >=, "b",  "a");
>+  COMPARE(true, >=, "aa", "a");
>+  COMPARE(true, >=, "b",  "aa");
>+  COMPARE(true, >=, "bb", "aa");
>+
>+  COMPARE(false, >, "a",  "a");
>+  COMPARE(false, >, "a",  "b");
>+  COMPARE(false, >, "a",  "aa");
>+  COMPARE(false, >, "aa", "b");
>+  COMPARE(false, >, "aa", "bb");
>+  COMPARE(true, >, "b",  "a");
>+  COMPARE(true, >, "aa", "a");
>+  COMPARE(true, >, "b",  "aa");
>+  COMPARE(true, >, "bb", "aa");
>+}
>+
>+TEST(StringViewTest, ComparisonOperatorsByCharacterPosition) {
>+  std::string x;
>+  for (int i = 0; i < 256; i++) {
>+    x += 'a';
>+    std::string y = x;
>+    COMPARE(true, ==, x, y);
>+    for (int j = 0; j < i; j++) {
>+      std::string z = x;
>+      z[j] = 'b';       // Differs in position 'j'
>+      COMPARE(false, ==, x, z);
>+      COMPARE(true, <, x, z);
>+      COMPARE(true, >, z, x);
>+      if (j + 1 < i) {
>+        z[j + 1] = 'A';  // Differs in position 'j+1' as well
>+        COMPARE(false, ==, x, z);
>+        COMPARE(true, <, x, z);
>+        COMPARE(true, >, z, x);
>+        z[j + 1] = 'z';  // Differs in position 'j+1' as well
>+        COMPARE(false, ==, x, z);
>+        COMPARE(true, <, x, z);
>+        COMPARE(true, >, z, x);
>+      }
>+    }
>+  }
>+}
>+#undef COMPARE
>+
>+// Sadly, our users often confuse std::string::npos with absl::string_view::npos;
>+// So much so that we test here that they are the same.  They need to
>+// both be unsigned, and both be the maximum-valued integer of their type.
>+
>+template <typename T>
>+struct is_type {
>+  template <typename U>
>+  static bool same(U) {
>+    return false;
>+  }
>+  static bool same(T) { return true; }
>+};
>+
>+TEST(StringViewTest, NposMatchesStdStringView) {
>+  EXPECT_EQ(absl::string_view::npos, std::string::npos);
>+
>+  EXPECT_TRUE(is_type<size_t>::same(absl::string_view::npos));
>+  EXPECT_FALSE(is_type<size_t>::same(""));
>+
>+  // Make sure absl::string_view::npos continues to be a header constant.
>+  char test[absl::string_view::npos & 1] = {0};
>+  EXPECT_EQ(0, test[0]);
>+}
>+
>+TEST(StringViewTest, STL1) {
>+  const absl::string_view a("abcdefghijklmnopqrstuvwxyz");
>+  const absl::string_view b("abc");
>+  const absl::string_view c("xyz");
>+  const absl::string_view d("foobar");
>+  const absl::string_view e;
>+  std::string temp("123");
>+  temp += '\0';
>+  temp += "456";
>+  const absl::string_view f(temp);
>+
>+  EXPECT_EQ(a[6], 'g');
>+  EXPECT_EQ(b[0], 'a');
>+  EXPECT_EQ(c[2], 'z');
>+  EXPECT_EQ(f[3], '\0');
>+  EXPECT_EQ(f[5], '5');
>+
>+  EXPECT_EQ(*d.data(), 'f');
>+  EXPECT_EQ(d.data()[5], 'r');
>+  EXPECT_TRUE(e.data() == nullptr);
>+
>+  EXPECT_EQ(*a.begin(), 'a');
>+  EXPECT_EQ(*(b.begin() + 2), 'c');
>+  EXPECT_EQ(*(c.end() - 1), 'z');
>+
>+  EXPECT_EQ(*a.rbegin(), 'z');
>+  EXPECT_EQ(*(b.rbegin() + 2), 'a');
>+  EXPECT_EQ(*(c.rend() - 1), 'x');
>+  EXPECT_TRUE(a.rbegin() + 26 == a.rend());
>+
>+  EXPECT_EQ(a.size(), 26);
>+  EXPECT_EQ(b.size(), 3);
>+  EXPECT_EQ(c.size(), 3);
>+  EXPECT_EQ(d.size(), 6);
>+  EXPECT_EQ(e.size(), 0);
>+  EXPECT_EQ(f.size(), 7);
>+
>+  EXPECT_TRUE(!d.empty());
>+  EXPECT_TRUE(d.begin() != d.end());
>+  EXPECT_TRUE(d.begin() + 6 == d.end());
>+
>+  EXPECT_TRUE(e.empty());
>+  EXPECT_TRUE(e.begin() == e.end());
>+
>+  char buf[4] = { '%', '%', '%', '%' };
>+  EXPECT_EQ(a.copy(buf, 4), 4);
>+  EXPECT_EQ(buf[0], a[0]);
>+  EXPECT_EQ(buf[1], a[1]);
>+  EXPECT_EQ(buf[2], a[2]);
>+  EXPECT_EQ(buf[3], a[3]);
>+  EXPECT_EQ(a.copy(buf, 3, 7), 3);
>+  EXPECT_EQ(buf[0], a[7]);
>+  EXPECT_EQ(buf[1], a[8]);
>+  EXPECT_EQ(buf[2], a[9]);
>+  EXPECT_EQ(buf[3], a[3]);
>+  EXPECT_EQ(c.copy(buf, 99), 3);
>+  EXPECT_EQ(buf[0], c[0]);
>+  EXPECT_EQ(buf[1], c[1]);
>+  EXPECT_EQ(buf[2], c[2]);
>+  EXPECT_EQ(buf[3], a[3]);
>+}
>+
>+// Separated from STL1() because some compilers produce an overly
>+// large stack frame for the combined function.
>+TEST(StringViewTest, STL2) {
>+  const absl::string_view a("abcdefghijklmnopqrstuvwxyz");
>+  const absl::string_view b("abc");
>+  const absl::string_view c("xyz");
>+  absl::string_view d("foobar");
>+  const absl::string_view e;
>+  const absl::string_view f(
>+      "123"
>+      "\0"
>+      "456",
>+      7);
>+
>+  d = absl::string_view();
>+  EXPECT_EQ(d.size(), 0);
>+  EXPECT_TRUE(d.empty());
>+  EXPECT_TRUE(d.data() == nullptr);
>+  EXPECT_TRUE(d.begin() == d.end());
>+
>+  EXPECT_EQ(a.find(b), 0);
>+  EXPECT_EQ(a.find(b, 1), absl::string_view::npos);
>+  EXPECT_EQ(a.find(c), 23);
>+  EXPECT_EQ(a.find(c, 9), 23);
>+  EXPECT_EQ(a.find(c, absl::string_view::npos), absl::string_view::npos);
>+  EXPECT_EQ(b.find(c), absl::string_view::npos);
>+  EXPECT_EQ(b.find(c, absl::string_view::npos), absl::string_view::npos);
>+  EXPECT_EQ(a.find(d), 0);
>+  EXPECT_EQ(a.find(e), 0);
>+  EXPECT_EQ(a.find(d, 12), 12);
>+  EXPECT_EQ(a.find(e, 17), 17);
>+  absl::string_view g("xx not found bb");
>+  EXPECT_EQ(a.find(g), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.find(b), absl::string_view::npos);
>+  EXPECT_EQ(e.find(b), absl::string_view::npos);
>+  EXPECT_EQ(d.find(b, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find(b, 7), absl::string_view::npos);
>+
>+  size_t empty_search_pos = std::string().find(std::string());
>+  EXPECT_EQ(d.find(d), empty_search_pos);
>+  EXPECT_EQ(d.find(e), empty_search_pos);
>+  EXPECT_EQ(e.find(d), empty_search_pos);
>+  EXPECT_EQ(e.find(e), empty_search_pos);
>+  EXPECT_EQ(d.find(d, 4), std::string().find(std::string(), 4));
>+  EXPECT_EQ(d.find(e, 4), std::string().find(std::string(), 4));
>+  EXPECT_EQ(e.find(d, 4), std::string().find(std::string(), 4));
>+  EXPECT_EQ(e.find(e, 4), std::string().find(std::string(), 4));
>+
>+  EXPECT_EQ(a.find('a'), 0);
>+  EXPECT_EQ(a.find('c'), 2);
>+  EXPECT_EQ(a.find('z'), 25);
>+  EXPECT_EQ(a.find('$'), absl::string_view::npos);
>+  EXPECT_EQ(a.find('\0'), absl::string_view::npos);
>+  EXPECT_EQ(f.find('\0'), 3);
>+  EXPECT_EQ(f.find('3'), 2);
>+  EXPECT_EQ(f.find('5'), 5);
>+  EXPECT_EQ(g.find('o'), 4);
>+  EXPECT_EQ(g.find('o', 4), 4);
>+  EXPECT_EQ(g.find('o', 5), 8);
>+  EXPECT_EQ(a.find('b', 5), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.find('\0'), absl::string_view::npos);
>+  EXPECT_EQ(e.find('\0'), absl::string_view::npos);
>+  EXPECT_EQ(d.find('\0', 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find('\0', 7), absl::string_view::npos);
>+  EXPECT_EQ(d.find('x'), absl::string_view::npos);
>+  EXPECT_EQ(e.find('x'), absl::string_view::npos);
>+  EXPECT_EQ(d.find('x', 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find('x', 7), absl::string_view::npos);
>+
>+  EXPECT_EQ(a.rfind(b), 0);
>+  EXPECT_EQ(a.rfind(b, 1), 0);
>+  EXPECT_EQ(a.rfind(c), 23);
>+  EXPECT_EQ(a.rfind(c, 22), absl::string_view::npos);
>+  EXPECT_EQ(a.rfind(c, 1), absl::string_view::npos);
>+  EXPECT_EQ(a.rfind(c, 0), absl::string_view::npos);
>+  EXPECT_EQ(b.rfind(c), absl::string_view::npos);
>+  EXPECT_EQ(b.rfind(c, 0), absl::string_view::npos);
>+  EXPECT_EQ(a.rfind(d), std::string(a).rfind(std::string()));
>+  EXPECT_EQ(a.rfind(e), std::string(a).rfind(std::string()));
>+  EXPECT_EQ(a.rfind(d, 12), 12);
>+  EXPECT_EQ(a.rfind(e, 17), 17);
>+  EXPECT_EQ(a.rfind(g), absl::string_view::npos);
>+  EXPECT_EQ(d.rfind(b), absl::string_view::npos);
>+  EXPECT_EQ(e.rfind(b), absl::string_view::npos);
>+  EXPECT_EQ(d.rfind(b, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.rfind(b, 7), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.rfind(d, 4), std::string().rfind(std::string()));
>+  EXPECT_EQ(e.rfind(d, 7), std::string().rfind(std::string()));
>+  EXPECT_EQ(d.rfind(e, 4), std::string().rfind(std::string()));
>+  EXPECT_EQ(e.rfind(e, 7), std::string().rfind(std::string()));
>+  EXPECT_EQ(d.rfind(d), std::string().rfind(std::string()));
>+  EXPECT_EQ(e.rfind(d), std::string().rfind(std::string()));
>+  EXPECT_EQ(d.rfind(e), std::string().rfind(std::string()));
>+  EXPECT_EQ(e.rfind(e), std::string().rfind(std::string()));
>+
>+  EXPECT_EQ(g.rfind('o'), 8);
>+  EXPECT_EQ(g.rfind('q'), absl::string_view::npos);
>+  EXPECT_EQ(g.rfind('o', 8), 8);
>+  EXPECT_EQ(g.rfind('o', 7), 4);
>+  EXPECT_EQ(g.rfind('o', 3), absl::string_view::npos);
>+  EXPECT_EQ(f.rfind('\0'), 3);
>+  EXPECT_EQ(f.rfind('\0', 12), 3);
>+  EXPECT_EQ(f.rfind('3'), 2);
>+  EXPECT_EQ(f.rfind('5'), 5);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.rfind('o'), absl::string_view::npos);
>+  EXPECT_EQ(e.rfind('o'), absl::string_view::npos);
>+  EXPECT_EQ(d.rfind('o', 4), absl::string_view::npos);
>+  EXPECT_EQ(e.rfind('o', 7), absl::string_view::npos);
>+}
>+
>+// Continued from STL2
>+TEST(StringViewTest, STL2FindFirst) {
>+  const absl::string_view a("abcdefghijklmnopqrstuvwxyz");
>+  const absl::string_view b("abc");
>+  const absl::string_view c("xyz");
>+  absl::string_view d("foobar");
>+  const absl::string_view e;
>+  const absl::string_view f(
>+      "123"
>+      "\0"
>+      "456",
>+      7);
>+  absl::string_view g("xx not found bb");
>+
>+  d = absl::string_view();
>+  EXPECT_EQ(a.find_first_of(b), 0);
>+  EXPECT_EQ(a.find_first_of(b, 0), 0);
>+  EXPECT_EQ(a.find_first_of(b, 1), 1);
>+  EXPECT_EQ(a.find_first_of(b, 2), 2);
>+  EXPECT_EQ(a.find_first_of(b, 3), absl::string_view::npos);
>+  EXPECT_EQ(a.find_first_of(c), 23);
>+  EXPECT_EQ(a.find_first_of(c, 23), 23);
>+  EXPECT_EQ(a.find_first_of(c, 24), 24);
>+  EXPECT_EQ(a.find_first_of(c, 25), 25);
>+  EXPECT_EQ(a.find_first_of(c, 26), absl::string_view::npos);
>+  EXPECT_EQ(g.find_first_of(b), 13);
>+  EXPECT_EQ(g.find_first_of(c), 0);
>+  EXPECT_EQ(a.find_first_of(f), absl::string_view::npos);
>+  EXPECT_EQ(f.find_first_of(a), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(a.find_first_of(d), absl::string_view::npos);
>+  EXPECT_EQ(a.find_first_of(e), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_of(b), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_of(b), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_of(d), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_of(d), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_of(e), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_of(e), absl::string_view::npos);
>+
>+  EXPECT_EQ(a.find_first_not_of(b), 3);
>+  EXPECT_EQ(a.find_first_not_of(c), 0);
>+  EXPECT_EQ(b.find_first_not_of(a), absl::string_view::npos);
>+  EXPECT_EQ(c.find_first_not_of(a), absl::string_view::npos);
>+  EXPECT_EQ(f.find_first_not_of(a), 0);
>+  EXPECT_EQ(a.find_first_not_of(f), 0);
>+  EXPECT_EQ(a.find_first_not_of(d), 0);
>+  EXPECT_EQ(a.find_first_not_of(e), 0);
>+  // empty std::string nonsense
>+  EXPECT_EQ(a.find_first_not_of(d), 0);
>+  EXPECT_EQ(a.find_first_not_of(e), 0);
>+  EXPECT_EQ(a.find_first_not_of(d, 1), 1);
>+  EXPECT_EQ(a.find_first_not_of(e, 1), 1);
>+  EXPECT_EQ(a.find_first_not_of(d, a.size() - 1), a.size() - 1);
>+  EXPECT_EQ(a.find_first_not_of(e, a.size() - 1), a.size() - 1);
>+  EXPECT_EQ(a.find_first_not_of(d, a.size()), absl::string_view::npos);
>+  EXPECT_EQ(a.find_first_not_of(e, a.size()), absl::string_view::npos);
>+  EXPECT_EQ(a.find_first_not_of(d, absl::string_view::npos),
>+            absl::string_view::npos);
>+  EXPECT_EQ(a.find_first_not_of(e, absl::string_view::npos),
>+            absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_not_of(a), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_not_of(a), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_not_of(d), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_not_of(d), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_not_of(e), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_not_of(e), absl::string_view::npos);
>+
>+  absl::string_view h("====");
>+  EXPECT_EQ(h.find_first_not_of('='), absl::string_view::npos);
>+  EXPECT_EQ(h.find_first_not_of('=', 3), absl::string_view::npos);
>+  EXPECT_EQ(h.find_first_not_of('\0'), 0);
>+  EXPECT_EQ(g.find_first_not_of('x'), 2);
>+  EXPECT_EQ(f.find_first_not_of('\0'), 0);
>+  EXPECT_EQ(f.find_first_not_of('\0', 3), 4);
>+  EXPECT_EQ(f.find_first_not_of('\0', 2), 2);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.find_first_not_of('x'), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_not_of('x'), absl::string_view::npos);
>+  EXPECT_EQ(d.find_first_not_of('\0'), absl::string_view::npos);
>+  EXPECT_EQ(e.find_first_not_of('\0'), absl::string_view::npos);
>+}
>+
>+// Continued from STL2
>+TEST(StringViewTest, STL2FindLast) {
>+  const absl::string_view a("abcdefghijklmnopqrstuvwxyz");
>+  const absl::string_view b("abc");
>+  const absl::string_view c("xyz");
>+  absl::string_view d("foobar");
>+  const absl::string_view e;
>+  const absl::string_view f(
>+      "123"
>+      "\0"
>+      "456",
>+      7);
>+  absl::string_view g("xx not found bb");
>+  absl::string_view h("====");
>+  absl::string_view i("56");
>+
>+  d = absl::string_view();
>+  EXPECT_EQ(h.find_last_of(a), absl::string_view::npos);
>+  EXPECT_EQ(g.find_last_of(a), g.size()-1);
>+  EXPECT_EQ(a.find_last_of(b), 2);
>+  EXPECT_EQ(a.find_last_of(c), a.size()-1);
>+  EXPECT_EQ(f.find_last_of(i), 6);
>+  EXPECT_EQ(a.find_last_of('a'), 0);
>+  EXPECT_EQ(a.find_last_of('b'), 1);
>+  EXPECT_EQ(a.find_last_of('z'), 25);
>+  EXPECT_EQ(a.find_last_of('a', 5), 0);
>+  EXPECT_EQ(a.find_last_of('b', 5), 1);
>+  EXPECT_EQ(a.find_last_of('b', 0), absl::string_view::npos);
>+  EXPECT_EQ(a.find_last_of('z', 25), 25);
>+  EXPECT_EQ(a.find_last_of('z', 24), absl::string_view::npos);
>+  EXPECT_EQ(f.find_last_of(i, 5), 5);
>+  EXPECT_EQ(f.find_last_of(i, 6), 6);
>+  EXPECT_EQ(f.find_last_of(a, 4), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(f.find_last_of(d), absl::string_view::npos);
>+  EXPECT_EQ(f.find_last_of(e), absl::string_view::npos);
>+  EXPECT_EQ(f.find_last_of(d, 4), absl::string_view::npos);
>+  EXPECT_EQ(f.find_last_of(e, 4), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(d), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(e), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(d), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(e), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(f), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(f), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(d, 4), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(e, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(d, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(e, 4), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_of(f, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_of(f, 4), absl::string_view::npos);
>+
>+  EXPECT_EQ(a.find_last_not_of(b), a.size()-1);
>+  EXPECT_EQ(a.find_last_not_of(c), 22);
>+  EXPECT_EQ(b.find_last_not_of(a), absl::string_view::npos);
>+  EXPECT_EQ(b.find_last_not_of(b), absl::string_view::npos);
>+  EXPECT_EQ(f.find_last_not_of(i), 4);
>+  EXPECT_EQ(a.find_last_not_of(c, 24), 22);
>+  EXPECT_EQ(a.find_last_not_of(b, 3), 3);
>+  EXPECT_EQ(a.find_last_not_of(b, 2), absl::string_view::npos);
>+  // empty std::string nonsense
>+  EXPECT_EQ(f.find_last_not_of(d), f.size()-1);
>+  EXPECT_EQ(f.find_last_not_of(e), f.size()-1);
>+  EXPECT_EQ(f.find_last_not_of(d, 4), 4);
>+  EXPECT_EQ(f.find_last_not_of(e, 4), 4);
>+  EXPECT_EQ(d.find_last_not_of(d), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of(e), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(d), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(e), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of(f), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(f), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of(d, 4), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of(e, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(d, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(e, 4), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of(f, 4), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of(f, 4), absl::string_view::npos);
>+
>+  EXPECT_EQ(h.find_last_not_of('x'), h.size() - 1);
>+  EXPECT_EQ(h.find_last_not_of('='), absl::string_view::npos);
>+  EXPECT_EQ(b.find_last_not_of('c'), 1);
>+  EXPECT_EQ(h.find_last_not_of('x', 2), 2);
>+  EXPECT_EQ(h.find_last_not_of('=', 2), absl::string_view::npos);
>+  EXPECT_EQ(b.find_last_not_of('b', 1), 0);
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.find_last_not_of('x'), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of('x'), absl::string_view::npos);
>+  EXPECT_EQ(d.find_last_not_of('\0'), absl::string_view::npos);
>+  EXPECT_EQ(e.find_last_not_of('\0'), absl::string_view::npos);
>+}
>+
>+// Continued from STL2
>+TEST(StringViewTest, STL2Substr) {
>+  const absl::string_view a("abcdefghijklmnopqrstuvwxyz");
>+  const absl::string_view b("abc");
>+  const absl::string_view c("xyz");
>+  absl::string_view d("foobar");
>+  const absl::string_view e;
>+
>+  d = absl::string_view();
>+  EXPECT_EQ(a.substr(0, 3), b);
>+  EXPECT_EQ(a.substr(23), c);
>+  EXPECT_EQ(a.substr(23, 3), c);
>+  EXPECT_EQ(a.substr(23, 99), c);
>+  EXPECT_EQ(a.substr(0), a);
>+  EXPECT_EQ(a.substr(3, 2), "de");
>+  // empty std::string nonsense
>+  EXPECT_EQ(d.substr(0, 99), e);
>+  // use of npos
>+  EXPECT_EQ(a.substr(0, absl::string_view::npos), a);
>+  EXPECT_EQ(a.substr(23, absl::string_view::npos), c);
>+  // throw exception
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  EXPECT_THROW(a.substr(99, 2), std::out_of_range);
>+#else
>+  EXPECT_DEATH(a.substr(99, 2), "absl::string_view::substr");
>+#endif
>+}
>+
>+TEST(StringViewTest, TruncSubstr) {
>+  const absl::string_view hi("hi");
>+  EXPECT_EQ("", absl::ClippedSubstr(hi, 0, 0));
>+  EXPECT_EQ("h", absl::ClippedSubstr(hi, 0, 1));
>+  EXPECT_EQ("hi", absl::ClippedSubstr(hi, 0));
>+  EXPECT_EQ("i", absl::ClippedSubstr(hi, 1));
>+  EXPECT_EQ("", absl::ClippedSubstr(hi, 2));
>+  EXPECT_EQ("", absl::ClippedSubstr(hi, 3));  // truncation
>+  EXPECT_EQ("", absl::ClippedSubstr(hi, 3, 2));  // truncation
>+}
>+
>+TEST(StringViewTest, UTF8) {
>+  std::string utf8 = "\u00E1";
>+  std::string utf8_twice = utf8 + " " + utf8;
>+  int utf8_len = strlen(utf8.data());
>+  EXPECT_EQ(utf8_len, absl::string_view(utf8_twice).find_first_of(" "));
>+  EXPECT_EQ(utf8_len, absl::string_view(utf8_twice).find_first_of(" \t"));
>+}
>+
>+TEST(StringViewTest, FindConformance) {
>+  struct {
>+    std::string haystack;
>+    std::string needle;
>+  } specs[] = {
>+    {"", ""},
>+    {"", "a"},
>+    {"a", ""},
>+    {"a", "a"},
>+    {"a", "b"},
>+    {"aa", ""},
>+    {"aa", "a"},
>+    {"aa", "b"},
>+    {"ab", "a"},
>+    {"ab", "b"},
>+    {"abcd", ""},
>+    {"abcd", "a"},
>+    {"abcd", "d"},
>+    {"abcd", "ab"},
>+    {"abcd", "bc"},
>+    {"abcd", "cd"},
>+    {"abcd", "abcd"},
>+  };
>+  for (const auto& s : specs) {
>+    SCOPED_TRACE(s.haystack);
>+    SCOPED_TRACE(s.needle);
>+    std::string st = s.haystack;
>+    absl::string_view sp = s.haystack;
>+    for (size_t i = 0; i <= sp.size(); ++i) {
>+      size_t pos = (i == sp.size()) ? absl::string_view::npos : i;
>+      SCOPED_TRACE(pos);
>+      EXPECT_EQ(sp.find(s.needle, pos),
>+                st.find(s.needle, pos));
>+      EXPECT_EQ(sp.rfind(s.needle, pos),
>+                st.rfind(s.needle, pos));
>+      EXPECT_EQ(sp.find_first_of(s.needle, pos),
>+                st.find_first_of(s.needle, pos));
>+      EXPECT_EQ(sp.find_first_not_of(s.needle, pos),
>+                st.find_first_not_of(s.needle, pos));
>+      EXPECT_EQ(sp.find_last_of(s.needle, pos),
>+                st.find_last_of(s.needle, pos));
>+      EXPECT_EQ(sp.find_last_not_of(s.needle, pos),
>+                st.find_last_not_of(s.needle, pos));
>+    }
>+  }
>+}
>+
>+TEST(StringViewTest, Remove) {
>+  absl::string_view a("foobar");
>+  std::string s1("123");
>+  s1 += '\0';
>+  s1 += "456";
>+  absl::string_view b(s1);
>+  absl::string_view e;
>+  std::string s2;
>+
>+  // remove_prefix
>+  absl::string_view c(a);
>+  c.remove_prefix(3);
>+  EXPECT_EQ(c, "bar");
>+  c = a;
>+  c.remove_prefix(0);
>+  EXPECT_EQ(c, a);
>+  c.remove_prefix(c.size());
>+  EXPECT_EQ(c, e);
>+
>+  // remove_suffix
>+  c = a;
>+  c.remove_suffix(3);
>+  EXPECT_EQ(c, "foo");
>+  c = a;
>+  c.remove_suffix(0);
>+  EXPECT_EQ(c, a);
>+  c.remove_suffix(c.size());
>+  EXPECT_EQ(c, e);
>+}
>+
>+TEST(StringViewTest, Set) {
>+  absl::string_view a("foobar");
>+  absl::string_view empty;
>+  absl::string_view b;
>+
>+  // set
>+  b = absl::string_view("foobar", 6);
>+  EXPECT_EQ(b, a);
>+  b = absl::string_view("foobar", 0);
>+  EXPECT_EQ(b, empty);
>+  b = absl::string_view("foobar", 7);
>+  EXPECT_NE(b, a);
>+
>+  b = absl::string_view("foobar");
>+  EXPECT_EQ(b, a);
>+}
>+
>+TEST(StringViewTest, FrontBack) {
>+  static const char arr[] = "abcd";
>+  const absl::string_view csp(arr, 4);
>+  EXPECT_EQ(&arr[0], &csp.front());
>+  EXPECT_EQ(&arr[3], &csp.back());
>+}
>+
>+TEST(StringViewTest, FrontBackSingleChar) {
>+  static const char c = 'a';
>+  const absl::string_view csp(&c, 1);
>+  EXPECT_EQ(&c, &csp.front());
>+  EXPECT_EQ(&c, &csp.back());
>+}
>+
>+// `std::string_view::string_view(const char*)` calls
>+// `std::char_traits<char>::length(const char*)` to get the std::string length. In
>+// libc++, it doesn't allow `nullptr` in the constexpr context, with the error
>+// "read of dereferenced null pointer is not allowed in a constant expression".
>+// At run time, the behavior of `std::char_traits::length()` on `nullptr` is
>+// undefined by the standard and usually results in crash with libc++. This
>+// conforms to the standard, but `absl::string_view` implements a different
>+// behavior for historical reasons. We work around tests that construct
>+// `string_view` from `nullptr` when using libc++.
>+#if !defined(ABSL_HAVE_STD_STRING_VIEW) || !defined(_LIBCPP_VERSION)
>+#define ABSL_HAVE_STRING_VIEW_FROM_NULLPTR 1
>+#endif  // !defined(ABSL_HAVE_STD_STRING_VIEW) || !defined(_LIBCPP_VERSION)
>+
>+TEST(StringViewTest, NULLInput) {
>+  absl::string_view s;
>+  EXPECT_EQ(s.data(), nullptr);
>+  EXPECT_EQ(s.size(), 0);
>+
>+#ifdef ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
>+  s = absl::string_view(nullptr);
>+  EXPECT_EQ(s.data(), nullptr);
>+  EXPECT_EQ(s.size(), 0);
>+
>+  // .ToString() on a absl::string_view with nullptr should produce the empty
>+  // std::string.
>+  EXPECT_EQ("", std::string(s));
>+#endif  // ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
>+}
>+
>+TEST(StringViewTest, Comparisons2) {
>+  // The `compare` member has 6 overloads (v: string_view, s: const char*):
>+  //  (1) compare(v)
>+  //  (2) compare(pos1, count1, v)
>+  //  (3) compare(pos1, count1, v, pos2, count2)
>+  //  (4) compare(s)
>+  //  (5) compare(pos1, count1, s)
>+  //  (6) compare(pos1, count1, s, count2)
>+
>+  absl::string_view abc("abcdefghijklmnopqrstuvwxyz");
>+
>+  // check comparison operations on strings longer than 4 bytes.
>+  EXPECT_EQ(abc, absl::string_view("abcdefghijklmnopqrstuvwxyz"));
>+  EXPECT_EQ(abc.compare(absl::string_view("abcdefghijklmnopqrstuvwxyz")), 0);
>+
>+  EXPECT_LT(abc, absl::string_view("abcdefghijklmnopqrstuvwxzz"));
>+  EXPECT_LT(abc.compare(absl::string_view("abcdefghijklmnopqrstuvwxzz")), 0);
>+
>+  EXPECT_GT(abc, absl::string_view("abcdefghijklmnopqrstuvwxyy"));
>+  EXPECT_GT(abc.compare(absl::string_view("abcdefghijklmnopqrstuvwxyy")), 0);
>+
>+  // The "substr" variants of `compare`.
>+  absl::string_view digits("0123456789");
>+  auto npos = absl::string_view::npos;
>+
>+  // Taking string_view
>+  EXPECT_EQ(digits.compare(3, npos, absl::string_view("3456789")), 0);  // 2
>+  EXPECT_EQ(digits.compare(3, 4, absl::string_view("3456")), 0);        // 2
>+  EXPECT_EQ(digits.compare(10, 0, absl::string_view()), 0);             // 2
>+  EXPECT_EQ(digits.compare(3, 4, absl::string_view("0123456789"), 3, 4),
>+            0);  // 3
>+  EXPECT_LT(digits.compare(3, 4, absl::string_view("0123456789"), 3, 5),
>+            0);  // 3
>+  EXPECT_LT(digits.compare(0, npos, absl::string_view("0123456789"), 3, 5),
>+            0);  // 3
>+  // Taking const char*
>+  EXPECT_EQ(digits.compare(3, 4, "3456"), 0);                 // 5
>+  EXPECT_EQ(digits.compare(3, npos, "3456789"), 0);           // 5
>+  EXPECT_EQ(digits.compare(10, 0, ""), 0);                    // 5
>+  EXPECT_EQ(digits.compare(3, 4, "0123456789", 3, 4), 0);     // 6
>+  EXPECT_LT(digits.compare(3, 4, "0123456789", 3, 5), 0);     // 6
>+  EXPECT_LT(digits.compare(0, npos, "0123456789", 3, 5), 0);  // 6
>+}
>+
>+struct MyCharAlloc : std::allocator<char> {};
>+
>+TEST(StringViewTest, ExplicitConversionOperator) {
>+  absl::string_view sp = "hi";
>+  EXPECT_EQ(sp, std::string(sp));
>+}
>+
>+TEST(StringViewTest, NullSafeStringView) {
>+  {
>+    absl::string_view s = absl::NullSafeStringView(nullptr);
>+    EXPECT_EQ(nullptr, s.data());
>+    EXPECT_EQ(0, s.size());
>+    EXPECT_EQ(absl::string_view(), s);
>+  }
>+  {
>+    static const char kHi[] = "hi";
>+    absl::string_view s = absl::NullSafeStringView(kHi);
>+    EXPECT_EQ(kHi, s.data());
>+    EXPECT_EQ(strlen(kHi), s.size());
>+    EXPECT_EQ(absl::string_view("hi"), s);
>+  }
>+}
>+
>+TEST(StringViewTest, ConstexprCompiles) {
>+  constexpr absl::string_view sp;
>+#ifdef ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
>+  constexpr absl::string_view cstr(nullptr);
>+#endif
>+  constexpr absl::string_view cstr_len("cstr", 4);
>+
>+#if defined(ABSL_HAVE_STD_STRING_VIEW)
>+  // In libstdc++ (as of 7.2), `std::string_view::string_view(const char*)`
>+  // calls `std::char_traits<char>::length(const char*)` to get the std::string
>+  // length, but it is not marked constexpr yet. See GCC bug:
>+  // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78156
>+  // Also, there is a LWG issue that adds constexpr to length() which was just
>+  // resolved 2017-06-02. See
>+  // http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#2232
>+  // TODO(zhangxy): Update the condition when libstdc++ adopts the constexpr
>+  // length().
>+#if !defined(__GLIBCXX__)
>+#define ABSL_HAVE_CONSTEXPR_STRING_VIEW_FROM_CSTR 1
>+#endif  // !__GLIBCXX__
>+
>+#else  // ABSL_HAVE_STD_STRING_VIEW
>+
>+// This duplicates the check for __builtin_strlen in the header.
>+#if ABSL_HAVE_BUILTIN(__builtin_strlen) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+#define ABSL_HAVE_CONSTEXPR_STRING_VIEW_FROM_CSTR 1
>+#elif defined(__GNUC__)  // GCC or clang
>+#error GCC/clang should have constexpr string_view.
>+#endif
>+
>+#endif  // ABSL_HAVE_STD_STRING_VIEW
>+
>+#ifdef ABSL_HAVE_CONSTEXPR_STRING_VIEW_FROM_CSTR
>+  constexpr absl::string_view cstr_strlen("foo");
>+  EXPECT_EQ(cstr_strlen.length(), 3);
>+  constexpr absl::string_view cstr_strlen2 = "bar";
>+  EXPECT_EQ(cstr_strlen2, "bar");
>+#endif
>+
>+#if !defined(__clang__) || 3 < __clang_major__ || \
>+  (3 == __clang_major__ && 4 < __clang_minor__)
>+  // older clang versions (< 3.5) complain that:
>+  //   "cannot perform pointer arithmetic on null pointer"
>+  constexpr absl::string_view::iterator const_begin_empty = sp.begin();
>+  constexpr absl::string_view::iterator const_end_empty = sp.end();
>+  EXPECT_EQ(const_begin_empty, const_end_empty);
>+
>+#ifdef ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
>+  constexpr absl::string_view::iterator const_begin_nullptr = cstr.begin();
>+  constexpr absl::string_view::iterator const_end_nullptr = cstr.end();
>+  EXPECT_EQ(const_begin_nullptr, const_end_nullptr);
>+#endif  // ABSL_HAVE_STRING_VIEW_FROM_NULLPTR
>+#endif  // !defined(__clang__) || ...
>+
>+  constexpr absl::string_view::iterator const_begin = cstr_len.begin();
>+  constexpr absl::string_view::iterator const_end = cstr_len.end();
>+  constexpr absl::string_view::size_type const_size = cstr_len.size();
>+  constexpr absl::string_view::size_type const_length = cstr_len.length();
>+  EXPECT_EQ(const_begin + const_size, const_end);
>+  EXPECT_EQ(const_begin + const_length, const_end);
>+
>+  constexpr bool isempty = sp.empty();
>+  EXPECT_TRUE(isempty);
>+
>+  constexpr const char c = cstr_len[2];
>+  EXPECT_EQ(c, 't');
>+
>+  constexpr const char cfront = cstr_len.front();
>+  constexpr const char cback = cstr_len.back();
>+  EXPECT_EQ(cfront, 'c');
>+  EXPECT_EQ(cback, 'r');
>+
>+  constexpr const char* np = sp.data();
>+  constexpr const char* cstr_ptr = cstr_len.data();
>+  EXPECT_EQ(np, nullptr);
>+  EXPECT_NE(cstr_ptr, nullptr);
>+
>+  constexpr size_t sp_npos = sp.npos;
>+  EXPECT_EQ(sp_npos, -1);
>+}
>+
>+TEST(StringViewTest, Noexcept) {
>+  EXPECT_TRUE((std::is_nothrow_constructible<absl::string_view,
>+                                             const std::string&>::value));
>+  EXPECT_TRUE(
>+      (std::is_nothrow_constructible<absl::string_view, const std::string&>::value));
>+  EXPECT_TRUE(std::is_nothrow_constructible<absl::string_view>::value);
>+  constexpr absl::string_view sp;
>+  EXPECT_TRUE(noexcept(sp.begin()));
>+  EXPECT_TRUE(noexcept(sp.end()));
>+  EXPECT_TRUE(noexcept(sp.cbegin()));
>+  EXPECT_TRUE(noexcept(sp.cend()));
>+  EXPECT_TRUE(noexcept(sp.rbegin()));
>+  EXPECT_TRUE(noexcept(sp.rend()));
>+  EXPECT_TRUE(noexcept(sp.crbegin()));
>+  EXPECT_TRUE(noexcept(sp.crend()));
>+  EXPECT_TRUE(noexcept(sp.size()));
>+  EXPECT_TRUE(noexcept(sp.length()));
>+  EXPECT_TRUE(noexcept(sp.empty()));
>+  EXPECT_TRUE(noexcept(sp.data()));
>+  EXPECT_TRUE(noexcept(sp.compare(sp)));
>+  EXPECT_TRUE(noexcept(sp.find(sp)));
>+  EXPECT_TRUE(noexcept(sp.find('f')));
>+  EXPECT_TRUE(noexcept(sp.rfind(sp)));
>+  EXPECT_TRUE(noexcept(sp.rfind('f')));
>+  EXPECT_TRUE(noexcept(sp.find_first_of(sp)));
>+  EXPECT_TRUE(noexcept(sp.find_first_of('f')));
>+  EXPECT_TRUE(noexcept(sp.find_last_of(sp)));
>+  EXPECT_TRUE(noexcept(sp.find_last_of('f')));
>+  EXPECT_TRUE(noexcept(sp.find_first_not_of(sp)));
>+  EXPECT_TRUE(noexcept(sp.find_first_not_of('f')));
>+  EXPECT_TRUE(noexcept(sp.find_last_not_of(sp)));
>+  EXPECT_TRUE(noexcept(sp.find_last_not_of('f')));
>+}
>+
>+TEST(ComparisonOpsTest, StringCompareNotAmbiguous) {
>+  EXPECT_EQ("hello", std::string("hello"));
>+  EXPECT_LT("hello", std::string("world"));
>+}
>+
>+TEST(ComparisonOpsTest, HeterogenousStringViewEquals) {
>+  EXPECT_EQ(absl::string_view("hello"), std::string("hello"));
>+  EXPECT_EQ("hello", absl::string_view("hello"));
>+}
>+
>+TEST(FindOneCharTest, EdgeCases) {
>+  absl::string_view a("xxyyyxx");
>+
>+  // Set a = "xyyyx".
>+  a.remove_prefix(1);
>+  a.remove_suffix(1);
>+
>+  EXPECT_EQ(0, a.find('x'));
>+  EXPECT_EQ(0, a.find('x', 0));
>+  EXPECT_EQ(4, a.find('x', 1));
>+  EXPECT_EQ(4, a.find('x', 4));
>+  EXPECT_EQ(absl::string_view::npos, a.find('x', 5));
>+
>+  EXPECT_EQ(4, a.rfind('x'));
>+  EXPECT_EQ(4, a.rfind('x', 5));
>+  EXPECT_EQ(4, a.rfind('x', 4));
>+  EXPECT_EQ(0, a.rfind('x', 3));
>+  EXPECT_EQ(0, a.rfind('x', 0));
>+
>+  // Set a = "yyy".
>+  a.remove_prefix(1);
>+  a.remove_suffix(1);
>+
>+  EXPECT_EQ(absl::string_view::npos, a.find('x'));
>+  EXPECT_EQ(absl::string_view::npos, a.rfind('x'));
>+}
>+
>+#ifndef THREAD_SANITIZER  // Allocates too much memory for tsan.
>+TEST(HugeStringView, TwoPointTwoGB) {
>+  if (sizeof(size_t) <= 4 || AbslRunningOnValgrind())
>+    return;
>+  // Try a huge std::string piece.
>+  const size_t size = size_t{2200} * 1000 * 1000;
>+  std::string s(size, 'a');
>+  absl::string_view sp(s);
>+  EXPECT_EQ(size, sp.length());
>+  sp.remove_prefix(1);
>+  EXPECT_EQ(size - 1, sp.length());
>+  sp.remove_suffix(2);
>+  EXPECT_EQ(size - 1 - 2, sp.length());
>+}
>+#endif  // THREAD_SANITIZER
>+
>+#if !defined(NDEBUG) && !defined(ABSL_HAVE_STD_STRING_VIEW)
>+TEST(NonNegativeLenTest, NonNegativeLen) {
>+  ABSL_EXPECT_DEATH_IF_SUPPORTED(absl::string_view("xyz", -1),
>+                                 "len <= kMaxSize");
>+}
>+
>+TEST(LenExceedsMaxSizeTest, LenExceedsMaxSize) {
>+  auto max_size = absl::string_view().max_size();
>+
>+  // This should construct ok (although the view itself is obviously invalid).
>+  absl::string_view ok_view("", max_size);
>+
>+  // Adding one to the max should trigger an assertion.
>+  ABSL_EXPECT_DEATH_IF_SUPPORTED(absl::string_view("", max_size + 1),
>+                                 "len <= kMaxSize");
>+}
>+#endif  // !defined(NDEBUG) && !defined(ABSL_HAVE_STD_STRING_VIEW)
>+
>+class StringViewStreamTest : public ::testing::Test {
>+ public:
>+  // Set negative 'width' for right justification.
>+  template <typename T>
>+  std::string Pad(const T& s, int width, char fill = 0) {
>+    std::ostringstream oss;
>+    if (fill != 0) {
>+      oss << std::setfill(fill);
>+    }
>+    if (width < 0) {
>+      width = -width;
>+      oss << std::right;
>+    }
>+    oss << std::setw(width) << s;
>+    return oss.str();
>+  }
>+};
>+
>+TEST_F(StringViewStreamTest, Padding) {
>+  std::string s("hello");
>+  absl::string_view sp(s);
>+  for (int w = -64; w < 64; ++w) {
>+    SCOPED_TRACE(w);
>+    EXPECT_EQ(Pad(s, w), Pad(sp, w));
>+  }
>+  for (int w = -64; w < 64; ++w) {
>+    SCOPED_TRACE(w);
>+    EXPECT_EQ(Pad(s, w, '#'), Pad(sp, w, '#'));
>+  }
>+}
>+
>+TEST_F(StringViewStreamTest, ResetsWidth) {
>+  // Width should reset after one formatted write.
>+  // If we weren't resetting width after formatting the string_view,
>+  // we'd have width=5 carrying over to the printing of the "]",
>+  // creating "[###hi####]".
>+  std::string s = "hi";
>+  absl::string_view sp = s;
>+  {
>+    std::ostringstream oss;
>+    oss << "[" << std::setfill('#') << std::setw(5) << s << "]";
>+    ASSERT_EQ("[###hi]", oss.str());
>+  }
>+  {
>+    std::ostringstream oss;
>+    oss << "[" << std::setfill('#') << std::setw(5) << sp << "]";
>+    EXPECT_EQ("[###hi]", oss.str());
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2f8d21f7deb9fca02938ca7a9240a0e17756f211
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip.h
>@@ -0,0 +1,89 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: strip.h
>+// -----------------------------------------------------------------------------
>+//
>+// This file contains various functions for stripping substrings from a std::string.
>+#ifndef ABSL_STRINGS_STRIP_H_
>+#define ABSL_STRINGS_STRIP_H_
>+
>+#include <cstddef>
>+#include <string>
>+
>+#include "absl/base/macros.h"
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/match.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+
>+// ConsumePrefix()
>+//
>+// Strips the `expected` prefix from the start of the given std::string, returning
>+// `true` if the strip operation succeeded or false otherwise.
>+//
>+// Example:
>+//
>+//   absl::string_view input("abc");
>+//   EXPECT_TRUE(absl::ConsumePrefix(&input, "a"));
>+//   EXPECT_EQ(input, "bc");
>+inline bool ConsumePrefix(absl::string_view* str, absl::string_view expected) {
>+  if (!absl::StartsWith(*str, expected)) return false;
>+  str->remove_prefix(expected.size());
>+  return true;
>+}
>+// ConsumeSuffix()
>+//
>+// Strips the `expected` suffix from the end of the given std::string, returning
>+// `true` if the strip operation succeeded or false otherwise.
>+//
>+// Example:
>+//
>+//   absl::string_view input("abcdef");
>+//   EXPECT_TRUE(absl::ConsumeSuffix(&input, "def"));
>+//   EXPECT_EQ(input, "abc");
>+inline bool ConsumeSuffix(absl::string_view* str, absl::string_view expected) {
>+  if (!absl::EndsWith(*str, expected)) return false;
>+  str->remove_suffix(expected.size());
>+  return true;
>+}
>+
>+// StripPrefix()
>+//
>+// Returns a view into the input std::string 'str' with the given 'prefix' removed,
>+// but leaving the original std::string intact. If the prefix does not match at the
>+// start of the std::string, returns the original std::string instead.
>+ABSL_MUST_USE_RESULT inline absl::string_view StripPrefix(
>+    absl::string_view str, absl::string_view prefix) {
>+  if (absl::StartsWith(str, prefix)) str.remove_prefix(prefix.size());
>+  return str;
>+}
>+
>+// StripSuffix()
>+//
>+// Returns a view into the input std::string 'str' with the given 'suffix' removed,
>+// but leaving the original std::string intact. If the suffix does not match at the
>+// end of the std::string, returns the original std::string instead.
>+ABSL_MUST_USE_RESULT inline absl::string_view StripSuffix(
>+    absl::string_view str, absl::string_view suffix) {
>+  if (absl::EndsWith(str, suffix)) str.remove_suffix(suffix.size());
>+  return str;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_STRIP_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..205c160c1929263796a59323ac59509e8ab6589e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/strip_test.cc
>@@ -0,0 +1,201 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains functions that remove a defined part from the std::string,
>+// i.e., strip the std::string.
>+
>+#include "absl/strings/strip.h"
>+
>+#include <cassert>
>+#include <cstdio>
>+#include <cstring>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace {
>+
>+using testing::ElementsAre;
>+using testing::IsEmpty;
>+
>+TEST(Strip, ConsumePrefixOneChar) {
>+  absl::string_view input("abc");
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, "a"));
>+  EXPECT_EQ(input, "bc");
>+
>+  EXPECT_FALSE(absl::ConsumePrefix(&input, "x"));
>+  EXPECT_EQ(input, "bc");
>+
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, "b"));
>+  EXPECT_EQ(input, "c");
>+
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, "c"));
>+  EXPECT_EQ(input, "");
>+
>+  EXPECT_FALSE(absl::ConsumePrefix(&input, "a"));
>+  EXPECT_EQ(input, "");
>+}
>+
>+TEST(Strip, ConsumePrefix) {
>+  absl::string_view input("abcdef");
>+  EXPECT_FALSE(absl::ConsumePrefix(&input, "abcdefg"));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_FALSE(absl::ConsumePrefix(&input, "abce"));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, ""));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_FALSE(absl::ConsumePrefix(&input, "abcdeg"));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, "abcdef"));
>+  EXPECT_EQ(input, "");
>+
>+  input = "abcdef";
>+  EXPECT_TRUE(absl::ConsumePrefix(&input, "abcde"));
>+  EXPECT_EQ(input, "f");
>+}
>+
>+TEST(Strip, ConsumeSuffix) {
>+  absl::string_view input("abcdef");
>+  EXPECT_FALSE(absl::ConsumeSuffix(&input, "abcdefg"));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_TRUE(absl::ConsumeSuffix(&input, ""));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_TRUE(absl::ConsumeSuffix(&input, "def"));
>+  EXPECT_EQ(input, "abc");
>+
>+  input = "abcdef";
>+  EXPECT_FALSE(absl::ConsumeSuffix(&input, "abcdeg"));
>+  EXPECT_EQ(input, "abcdef");
>+
>+  EXPECT_TRUE(absl::ConsumeSuffix(&input, "f"));
>+  EXPECT_EQ(input, "abcde");
>+
>+  EXPECT_TRUE(absl::ConsumeSuffix(&input, "abcde"));
>+  EXPECT_EQ(input, "");
>+}
>+
>+TEST(Strip, StripPrefix) {
>+  const absl::string_view null_str;
>+
>+  EXPECT_EQ(absl::StripPrefix("foobar", "foo"), "bar");
>+  EXPECT_EQ(absl::StripPrefix("foobar", ""), "foobar");
>+  EXPECT_EQ(absl::StripPrefix("foobar", null_str), "foobar");
>+  EXPECT_EQ(absl::StripPrefix("foobar", "foobar"), "");
>+  EXPECT_EQ(absl::StripPrefix("foobar", "bar"), "foobar");
>+  EXPECT_EQ(absl::StripPrefix("foobar", "foobarr"), "foobar");
>+  EXPECT_EQ(absl::StripPrefix("", ""), "");
>+}
>+
>+TEST(Strip, StripSuffix) {
>+  const absl::string_view null_str;
>+
>+  EXPECT_EQ(absl::StripSuffix("foobar", "bar"), "foo");
>+  EXPECT_EQ(absl::StripSuffix("foobar", ""), "foobar");
>+  EXPECT_EQ(absl::StripSuffix("foobar", null_str), "foobar");
>+  EXPECT_EQ(absl::StripSuffix("foobar", "foobar"), "");
>+  EXPECT_EQ(absl::StripSuffix("foobar", "foo"), "foobar");
>+  EXPECT_EQ(absl::StripSuffix("foobar", "ffoobar"), "foobar");
>+  EXPECT_EQ(absl::StripSuffix("", ""), "");
>+}
>+
>+TEST(Strip, RemoveExtraAsciiWhitespace) {
>+  const char* inputs[] = {
>+      "No extra space",
>+      "  Leading whitespace",
>+      "Trailing whitespace  ",
>+      "  Leading and trailing  ",
>+      " Whitespace \t  in\v   middle  ",
>+      "'Eeeeep!  \n Newlines!\n",
>+      "nospaces",
>+  };
>+  const char* outputs[] = {
>+      "No extra space",
>+      "Leading whitespace",
>+      "Trailing whitespace",
>+      "Leading and trailing",
>+      "Whitespace in middle",
>+      "'Eeeeep! Newlines!",
>+      "nospaces",
>+  };
>+  int NUM_TESTS = 7;
>+
>+  for (int i = 0; i < NUM_TESTS; i++) {
>+    std::string s(inputs[i]);
>+    absl::RemoveExtraAsciiWhitespace(&s);
>+    EXPECT_STREQ(outputs[i], s.c_str());
>+  }
>+
>+  // Test that absl::RemoveExtraAsciiWhitespace returns immediately for empty
>+  // strings (It was adding the \0 character to the C++ std::string, which broke
>+  // tests involving empty())
>+  std::string zero_string = "";
>+  assert(zero_string.empty());
>+  absl::RemoveExtraAsciiWhitespace(&zero_string);
>+  EXPECT_EQ(zero_string.size(), 0);
>+  EXPECT_TRUE(zero_string.empty());
>+}
>+
>+TEST(Strip, StripTrailingAsciiWhitespace) {
>+  std::string test = "foo  ";
>+  absl::StripTrailingAsciiWhitespace(&test);
>+  EXPECT_EQ(test, "foo");
>+
>+  test = "   ";
>+  absl::StripTrailingAsciiWhitespace(&test);
>+  EXPECT_EQ(test, "");
>+
>+  test = "";
>+  absl::StripTrailingAsciiWhitespace(&test);
>+  EXPECT_EQ(test, "");
>+
>+  test = " abc\t";
>+  absl::StripTrailingAsciiWhitespace(&test);
>+  EXPECT_EQ(test, " abc");
>+}
>+
>+TEST(String, StripLeadingAsciiWhitespace) {
>+  absl::string_view orig = "\t  \n\f\r\n\vfoo";
>+  EXPECT_EQ("foo", absl::StripLeadingAsciiWhitespace(orig));
>+  orig = "\t  \n\f\r\v\n\t  \n\f\r\v\n";
>+  EXPECT_EQ(absl::string_view(), absl::StripLeadingAsciiWhitespace(orig));
>+}
>+
>+TEST(Strip, StripAsciiWhitespace) {
>+  std::string test2 = "\t  \f\r\n\vfoo \t\f\r\v\n";
>+  absl::StripAsciiWhitespace(&test2);
>+  EXPECT_EQ(test2, "foo");
>+  std::string test3 = "bar";
>+  absl::StripAsciiWhitespace(&test3);
>+  EXPECT_EQ(test3, "bar");
>+  std::string test4 = "\t  \f\r\n\vfoo";
>+  absl::StripAsciiWhitespace(&test4);
>+  EXPECT_EQ(test4, "foo");
>+  std::string test5 = "foo \t\f\r\v\n";
>+  absl::StripAsciiWhitespace(&test5);
>+  EXPECT_EQ(test5, "foo");
>+  absl::string_view test6("\t  \f\r\n\vfoo \t\f\r\v\n");
>+  test6 = absl::StripAsciiWhitespace(test6);
>+  EXPECT_EQ(test6, "foo");
>+  test6 = absl::StripAsciiWhitespace(test6);
>+  EXPECT_EQ(test6, "foo");  // already stripped
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3b200594509516139419d8f21cfd4ad210014f79
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.cc
>@@ -0,0 +1,170 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/substitute.h"
>+
>+#include <algorithm>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/escaping.h"
>+#include "absl/strings/internal/resize_uninitialized.h"
>+#include "absl/strings/string_view.h"
>+
>+namespace absl {
>+namespace substitute_internal {
>+
>+void SubstituteAndAppendArray(std::string* output, absl::string_view format,
>+                              const absl::string_view* args_array,
>+                              size_t num_args) {
>+  // Determine total size needed.
>+  size_t size = 0;
>+  for (size_t i = 0; i < format.size(); i++) {
>+    if (format[i] == '$') {
>+      if (i + 1 >= format.size()) {
>+#ifndef NDEBUG
>+        ABSL_RAW_LOG(FATAL,
>+                     "Invalid strings::Substitute() format std::string: \"%s\".",
>+                     absl::CEscape(format).c_str());
>+#endif
>+        return;
>+      } else if (absl::ascii_isdigit(format[i + 1])) {
>+        int index = format[i + 1] - '0';
>+        if (static_cast<size_t>(index) >= num_args) {
>+#ifndef NDEBUG
>+          ABSL_RAW_LOG(
>+              FATAL,
>+              "Invalid strings::Substitute() format std::string: asked for \"$"
>+              "%d\", but only %d args were given.  Full format std::string was: "
>+              "\"%s\".",
>+              index, static_cast<int>(num_args), absl::CEscape(format).c_str());
>+#endif
>+          return;
>+        }
>+        size += args_array[index].size();
>+        ++i;  // Skip next char.
>+      } else if (format[i + 1] == '$') {
>+        ++size;
>+        ++i;  // Skip next char.
>+      } else {
>+#ifndef NDEBUG
>+        ABSL_RAW_LOG(FATAL,
>+                     "Invalid strings::Substitute() format std::string: \"%s\".",
>+                     absl::CEscape(format).c_str());
>+#endif
>+        return;
>+      }
>+    } else {
>+      ++size;
>+    }
>+  }
>+
>+  if (size == 0) return;
>+
>+  // Build the std::string.
>+  size_t original_size = output->size();
>+  strings_internal::STLStringResizeUninitialized(output, original_size + size);
>+  char* target = &(*output)[original_size];
>+  for (size_t i = 0; i < format.size(); i++) {
>+    if (format[i] == '$') {
>+      if (absl::ascii_isdigit(format[i + 1])) {
>+        const absl::string_view src = args_array[format[i + 1] - '0'];
>+        target = std::copy(src.begin(), src.end(), target);
>+        ++i;  // Skip next char.
>+      } else if (format[i + 1] == '$') {
>+        *target++ = '$';
>+        ++i;  // Skip next char.
>+      }
>+    } else {
>+      *target++ = format[i];
>+    }
>+  }
>+
>+  assert(target == output->data() + output->size());
>+}
>+
>+static const char kHexDigits[] = "0123456789abcdef";
>+Arg::Arg(const void* value) {
>+  static_assert(sizeof(scratch_) >= sizeof(value) * 2 + 2,
>+                "fix sizeof(scratch_)");
>+  if (value == nullptr) {
>+    piece_ = "NULL";
>+  } else {
>+    char* ptr = scratch_ + sizeof(scratch_);
>+    uintptr_t num = reinterpret_cast<uintptr_t>(value);
>+    do {
>+      *--ptr = kHexDigits[num & 0xf];
>+      num >>= 4;
>+    } while (num != 0);
>+    *--ptr = 'x';
>+    *--ptr = '0';
>+    piece_ = absl::string_view(ptr, scratch_ + sizeof(scratch_) - ptr);
>+  }
>+}
>+
>+// TODO(jorg): Don't duplicate so much code between here and str_cat.cc
>+Arg::Arg(Hex hex) {
>+  char* const end = &scratch_[numbers_internal::kFastToBufferSize];
>+  char* writer = end;
>+  uint64_t value = hex.value;
>+  do {
>+    *--writer = kHexDigits[value & 0xF];
>+    value >>= 4;
>+  } while (value != 0);
>+
>+  char* beg;
>+  if (end - writer < hex.width) {
>+    beg = end - hex.width;
>+    std::fill_n(beg, writer - beg, hex.fill);
>+  } else {
>+    beg = writer;
>+  }
>+
>+  piece_ = absl::string_view(beg, end - beg);
>+}
>+
>+// TODO(jorg): Don't duplicate so much code between here and str_cat.cc
>+Arg::Arg(Dec dec) {
>+  assert(dec.width <= numbers_internal::kFastToBufferSize);
>+  char* const end = &scratch_[numbers_internal::kFastToBufferSize];
>+  char* const minfill = end - dec.width;
>+  char* writer = end;
>+  uint64_t value = dec.value;
>+  bool neg = dec.neg;
>+  while (value > 9) {
>+    *--writer = '0' + (value % 10);
>+    value /= 10;
>+  }
>+  *--writer = '0' + value;
>+  if (neg) *--writer = '-';
>+
>+  ptrdiff_t fillers = writer - minfill;
>+  if (fillers > 0) {
>+    // Tricky: if the fill character is ' ', then it's <fill><+/-><digits>
>+    // But...: if the fill character is '0', then it's <+/-><fill><digits>
>+    bool add_sign_again = false;
>+    if (neg && dec.fill == '0') {  // If filling with '0',
>+      ++writer;                    // ignore the sign we just added
>+      add_sign_again = true;       // and re-add the sign later.
>+    }
>+    writer -= fillers;
>+    std::fill_n(writer, fillers, dec.fill);
>+    if (add_sign_again) *--writer = '-';
>+  }
>+
>+  piece_ = absl::string_view(writer, end - writer);
>+}
>+
>+}  // namespace substitute_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c4b25ba70952c19d64ebc849b7e3c09cafbc52cf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute.h
>@@ -0,0 +1,671 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: substitute.h
>+// -----------------------------------------------------------------------------
>+//
>+// This package contains functions for efficiently performing std::string
>+// substitutions using a format std::string with positional notation:
>+// `Substitute()` and `SubstituteAndAppend()`.
>+//
>+// Unlike printf-style format specifiers, `Substitute()` functions do not need
>+// to specify the type of the substitution arguments. Supported arguments
>+// following the format std::string, such as strings, string_views, ints,
>+// floats, and bools, are automatically converted to strings during the
>+// substitution process. (See below for a full list of supported types.)
>+//
>+// `Substitute()` does not allow you to specify *how* to format a value, beyond
>+// the default conversion to std::string. For example, you cannot format an integer
>+// in hex.
>+//
>+// The format std::string uses positional identifiers indicated by a dollar sign ($)
>+// and single digit positional ids to indicate which substitution arguments to
>+// use at that location within the format std::string.
>+//
>+// Example 1:
>+//   std::string s = Substitute("$1 purchased $0 $2. Thanks $1!",
>+//                         5, "Bob", "Apples");
>+//   EXPECT_EQ("Bob purchased 5 Apples. Thanks Bob!", s);
>+//
>+// Example 2:
>+//   std::string s = "Hi. ";
>+//   SubstituteAndAppend(&s, "My name is $0 and I am $1 years old.", "Bob", 5);
>+//   EXPECT_EQ("Hi. My name is Bob and I am 5 years old.", s);
>+//
>+//
>+// Supported types:
>+//   * absl::string_view, std::string, const char* (null is equivalent to "")
>+//   * int32_t, int64_t, uint32_t, uint64
>+//   * float, double
>+//   * bool (Printed as "true" or "false")
>+//   * pointer types other than char* (Printed as "0x<lower case hex std::string>",
>+//     except that null is printed as "NULL")
>+//
>+// If an invalid format std::string is provided, Substitute returns an empty std::string
>+// and SubstituteAndAppend does not change the provided output std::string.
>+// A format std::string is invalid if it:
>+//   * ends in an unescaped $ character,
>+//     e.g. "Hello $", or
>+//   * calls for a position argument which is not provided,
>+//     e.g. Substitute("Hello $2", "world"), or
>+//   * specifies a non-digit, non-$ character after an unescaped $ character,
>+//     e.g. "Hello $f".
>+// In debug mode, i.e. #ifndef NDEBUG, such errors terminate the program.
>+
>+#ifndef ABSL_STRINGS_SUBSTITUTE_H_
>+#define ABSL_STRINGS_SUBSTITUTE_H_
>+
>+#include <cstring>
>+#include <string>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/strings/ascii.h"
>+#include "absl/strings/escaping.h"
>+#include "absl/strings/numbers.h"
>+#include "absl/strings/str_cat.h"
>+#include "absl/strings/str_split.h"
>+#include "absl/strings/string_view.h"
>+#include "absl/strings/strip.h"
>+
>+namespace absl {
>+namespace substitute_internal {
>+
>+// Arg
>+//
>+// This class provides an argument type for `absl::Substitute()` and
>+// `absl::SubstituteAndAppend()`. `Arg` handles implicit conversion of various
>+// types to a std::string. (`Arg` is very similar to the `AlphaNum` class in
>+// `StrCat()`.)
>+//
>+// This class has implicit constructors.
>+class Arg {
>+ public:
>+  // Overloads for std::string-y things
>+  //
>+  // Explicitly overload `const char*` so the compiler doesn't cast to `bool`.
>+  Arg(const char* value)  // NOLINT(runtime/explicit)
>+      : piece_(absl::NullSafeStringView(value)) {}
>+  template <typename Allocator>
>+  Arg(  // NOLINT
>+      const std::basic_string<char, std::char_traits<char>, Allocator>&
>+          value) noexcept
>+      : piece_(value) {}
>+  Arg(absl::string_view value)  // NOLINT(runtime/explicit)
>+      : piece_(value) {}
>+
>+  // Overloads for primitives
>+  //
>+  // No overloads are available for signed and unsigned char because if people
>+  // are explicitly declaring their chars as signed or unsigned then they are
>+  // probably using them as 8-bit integers and would probably prefer an integer
>+  // representation. However, we can't really know, so we make the caller decide
>+  // what to do.
>+  Arg(char value)  // NOLINT(runtime/explicit)
>+      : piece_(scratch_, 1) { scratch_[0] = value; }
>+  Arg(short value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(unsigned short value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(int value)  // NOLINT(runtime/explicit)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(unsigned int value)  // NOLINT(runtime/explicit)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(long value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(unsigned long value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(long long value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(unsigned long long value)  // NOLINT(*)
>+      : piece_(scratch_,
>+               numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
>+  Arg(float value)  // NOLINT(runtime/explicit)
>+      : piece_(scratch_, numbers_internal::SixDigitsToBuffer(value, scratch_)) {
>+  }
>+  Arg(double value)  // NOLINT(runtime/explicit)
>+      : piece_(scratch_, numbers_internal::SixDigitsToBuffer(value, scratch_)) {
>+  }
>+  Arg(bool value)  // NOLINT(runtime/explicit)
>+      : piece_(value ? "true" : "false") {}
>+
>+  Arg(Hex hex);  // NOLINT(runtime/explicit)
>+  Arg(Dec dec);  // NOLINT(runtime/explicit)
>+
>+  // `void*` values, with the exception of `char*`, are printed as
>+  // "0x<hex value>". However, in the case of `nullptr`, "NULL" is printed.
>+  Arg(const void* value);  // NOLINT(runtime/explicit)
>+
>+  Arg(const Arg&) = delete;
>+  Arg& operator=(const Arg&) = delete;
>+
>+  absl::string_view piece() const { return piece_; }
>+
>+ private:
>+  absl::string_view piece_;
>+  char scratch_[numbers_internal::kFastToBufferSize];
>+};
>+
>+// Internal helper function. Don't call this from outside this implementation.
>+// This interface may change without notice.
>+void SubstituteAndAppendArray(std::string* output, absl::string_view format,
>+                              const absl::string_view* args_array,
>+                              size_t num_args);
>+
>+#if defined(ABSL_BAD_CALL_IF)
>+constexpr int CalculateOneBit(const char* format) {
>+  return (*format < '0' || *format > '9') ? 0 : (1 << (*format - '0'));
>+}
>+
>+constexpr const char* SkipNumber(const char* format) {
>+  return !*format ? format : (format + 1);
>+}
>+
>+constexpr int PlaceholderBitmask(const char* format) {
>+  return !*format ? 0 : *format != '$'
>+                             ? PlaceholderBitmask(format + 1)
>+                             : (CalculateOneBit(format + 1) |
>+                                   PlaceholderBitmask(SkipNumber(format + 1)));
>+}
>+#endif  // ABSL_BAD_CALL_IF
>+
>+}  // namespace substitute_internal
>+
>+//
>+// PUBLIC API
>+//
>+
>+// SubstituteAndAppend()
>+//
>+// Substitutes variables into a given format std::string and appends to a given
>+// output std::string. See file comments above for usage.
>+//
>+// The declarations of `SubstituteAndAppend()` below consist of overloads
>+// for passing 0 to 10 arguments, respectively.
>+//
>+// NOTE: A zero-argument `SubstituteAndAppend()` may be used within variadic
>+// templates to allow a variable number of arguments.
>+//
>+// Example:
>+//  template <typename... Args>
>+//  void VarMsg(std::string* boilerplate, absl::string_view format,
>+//      const Args&... args) {
>+//    absl::SubstituteAndAppend(boilerplate, format, args...);
>+//  }
>+//
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format) {
>+  substitute_internal::SubstituteAndAppendArray(output, format, nullptr, 0);
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0) {
>+  const absl::string_view args[] = {a0.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1,
>+                                const substitute_internal::Arg& a2) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1,
>+                                const substitute_internal::Arg& a2,
>+                                const substitute_internal::Arg& a3) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1,
>+                                const substitute_internal::Arg& a2,
>+                                const substitute_internal::Arg& a3,
>+                                const substitute_internal::Arg& a4) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece(), a4.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1,
>+                                const substitute_internal::Arg& a2,
>+                                const substitute_internal::Arg& a3,
>+                                const substitute_internal::Arg& a4,
>+                                const substitute_internal::Arg& a5) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece(), a4.piece(), a5.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(std::string* output, absl::string_view format,
>+                                const substitute_internal::Arg& a0,
>+                                const substitute_internal::Arg& a1,
>+                                const substitute_internal::Arg& a2,
>+                                const substitute_internal::Arg& a3,
>+                                const substitute_internal::Arg& a4,
>+                                const substitute_internal::Arg& a5,
>+                                const substitute_internal::Arg& a6) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece(), a4.piece(), a5.piece(),
>+                                    a6.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(
>+    std::string* output, absl::string_view format,
>+    const substitute_internal::Arg& a0, const substitute_internal::Arg& a1,
>+    const substitute_internal::Arg& a2, const substitute_internal::Arg& a3,
>+    const substitute_internal::Arg& a4, const substitute_internal::Arg& a5,
>+    const substitute_internal::Arg& a6, const substitute_internal::Arg& a7) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece(), a4.piece(), a5.piece(),
>+                                    a6.piece(), a7.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(
>+    std::string* output, absl::string_view format,
>+    const substitute_internal::Arg& a0, const substitute_internal::Arg& a1,
>+    const substitute_internal::Arg& a2, const substitute_internal::Arg& a3,
>+    const substitute_internal::Arg& a4, const substitute_internal::Arg& a5,
>+    const substitute_internal::Arg& a6, const substitute_internal::Arg& a7,
>+    const substitute_internal::Arg& a8) {
>+  const absl::string_view args[] = {a0.piece(), a1.piece(), a2.piece(),
>+                                    a3.piece(), a4.piece(), a5.piece(),
>+                                    a6.piece(), a7.piece(), a8.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+inline void SubstituteAndAppend(
>+    std::string* output, absl::string_view format,
>+    const substitute_internal::Arg& a0, const substitute_internal::Arg& a1,
>+    const substitute_internal::Arg& a2, const substitute_internal::Arg& a3,
>+    const substitute_internal::Arg& a4, const substitute_internal::Arg& a5,
>+    const substitute_internal::Arg& a6, const substitute_internal::Arg& a7,
>+    const substitute_internal::Arg& a8, const substitute_internal::Arg& a9) {
>+  const absl::string_view args[] = {
>+      a0.piece(), a1.piece(), a2.piece(), a3.piece(), a4.piece(),
>+      a5.piece(), a6.piece(), a7.piece(), a8.piece(), a9.piece()};
>+  substitute_internal::SubstituteAndAppendArray(output, format, args,
>+                                                ABSL_ARRAYSIZE(args));
>+}
>+
>+#if defined(ABSL_BAD_CALL_IF)
>+// This body of functions catches cases where the number of placeholders
>+// doesn't match the number of data arguments.
>+void SubstituteAndAppend(std::string* output, const char* format)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 0,
>+                     "There were no substitution arguments "
>+                     "but this format std::string has a $[0-9] in it");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 1,
>+                     "There was 1 substitution argument given, but "
>+                     "this format std::string is either missing its $0, or "
>+                     "contains one of $1-$9");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0,
>+                         const substitute_internal::Arg& a1)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 3,
>+                     "There were 2 substitution arguments given, but "
>+                     "this format std::string is either missing its $0/$1, or "
>+                     "contains one of $2-$9");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0,
>+                         const substitute_internal::Arg& a1,
>+                         const substitute_internal::Arg& a2)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 7,
>+                     "There were 3 substitution arguments given, but "
>+                     "this format std::string is either missing its $0/$1/$2, or "
>+                     "contains one of $3-$9");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0,
>+                         const substitute_internal::Arg& a1,
>+                         const substitute_internal::Arg& a2,
>+                         const substitute_internal::Arg& a3)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 15,
>+                     "There were 4 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$3, or "
>+                     "contains one of $4-$9");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0,
>+                         const substitute_internal::Arg& a1,
>+                         const substitute_internal::Arg& a2,
>+                         const substitute_internal::Arg& a3,
>+                         const substitute_internal::Arg& a4)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 31,
>+                     "There were 5 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$4, or "
>+                     "contains one of $5-$9");
>+
>+void SubstituteAndAppend(std::string* output, const char* format,
>+                         const substitute_internal::Arg& a0,
>+                         const substitute_internal::Arg& a1,
>+                         const substitute_internal::Arg& a2,
>+                         const substitute_internal::Arg& a3,
>+                         const substitute_internal::Arg& a4,
>+                         const substitute_internal::Arg& a5)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 63,
>+                     "There were 6 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$5, or "
>+                     "contains one of $6-$9");
>+
>+void SubstituteAndAppend(
>+    std::string* output, const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 127,
>+                     "There were 7 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$6, or "
>+                     "contains one of $7-$9");
>+
>+void SubstituteAndAppend(
>+    std::string* output, const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 255,
>+                     "There were 8 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$7, or "
>+                     "contains one of $8-$9");
>+
>+void SubstituteAndAppend(
>+    std::string* output, const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8)
>+    ABSL_BAD_CALL_IF(
>+        substitute_internal::PlaceholderBitmask(format) != 511,
>+        "There were 9 substitution arguments given, but "
>+        "this format std::string is either missing its $0-$8, or contains a $9");
>+
>+void SubstituteAndAppend(
>+    std::string* output, const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8,
>+    const substitute_internal::Arg& a9)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 1023,
>+                     "There were 10 substitution arguments given, but this "
>+                     "format std::string doesn't contain all of $0 through $9");
>+#endif  // ABSL_BAD_CALL_IF
>+
>+// Substitute()
>+//
>+// Substitutes variables into a given format std::string. See file comments above
>+// for usage.
>+//
>+// The declarations of `Substitute()` below consist of overloads for passing 0
>+// to 10 arguments, respectively.
>+//
>+// NOTE: A zero-argument `Substitute()` may be used within variadic templates to
>+// allow a variable number of arguments.
>+//
>+// Example:
>+//  template <typename... Args>
>+//  void VarMsg(absl::string_view format, const Args&... args) {
>+//    std::string s = absl::Substitute(format, args...);
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(absl::string_view format) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4, a5);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4, a5, a6);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4, a5, a6, a7);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4, a5, a6, a7, a8);
>+  return result;
>+}
>+
>+ABSL_MUST_USE_RESULT inline std::string Substitute(
>+    absl::string_view format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8,
>+    const substitute_internal::Arg& a9) {
>+  std::string result;
>+  SubstituteAndAppend(&result, format, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
>+  return result;
>+}
>+
>+#if defined(ABSL_BAD_CALL_IF)
>+// This body of functions catches cases where the number of placeholders
>+// doesn't match the number of data arguments.
>+std::string Substitute(const char* format)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 0,
>+                     "There were no substitution arguments "
>+                     "but this format std::string has a $[0-9] in it");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 1,
>+                     "There was 1 substitution argument given, but "
>+                     "this format std::string is either missing its $0, or "
>+                     "contains one of $1-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 3,
>+                     "There were 2 substitution arguments given, but "
>+                     "this format std::string is either missing its $0/$1, or "
>+                     "contains one of $2-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 7,
>+                     "There were 3 substitution arguments given, but "
>+                     "this format std::string is either missing its $0/$1/$2, or "
>+                     "contains one of $3-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2,
>+                  const substitute_internal::Arg& a3)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 15,
>+                     "There were 4 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$3, or "
>+                     "contains one of $4-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2,
>+                  const substitute_internal::Arg& a3,
>+                  const substitute_internal::Arg& a4)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 31,
>+                     "There were 5 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$4, or "
>+                     "contains one of $5-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2,
>+                  const substitute_internal::Arg& a3,
>+                  const substitute_internal::Arg& a4,
>+                  const substitute_internal::Arg& a5)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 63,
>+                     "There were 6 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$5, or "
>+                     "contains one of $6-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2,
>+                  const substitute_internal::Arg& a3,
>+                  const substitute_internal::Arg& a4,
>+                  const substitute_internal::Arg& a5,
>+                  const substitute_internal::Arg& a6)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 127,
>+                     "There were 7 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$6, or "
>+                     "contains one of $7-$9");
>+
>+std::string Substitute(const char* format, const substitute_internal::Arg& a0,
>+                  const substitute_internal::Arg& a1,
>+                  const substitute_internal::Arg& a2,
>+                  const substitute_internal::Arg& a3,
>+                  const substitute_internal::Arg& a4,
>+                  const substitute_internal::Arg& a5,
>+                  const substitute_internal::Arg& a6,
>+                  const substitute_internal::Arg& a7)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 255,
>+                     "There were 8 substitution arguments given, but "
>+                     "this format std::string is either missing its $0-$7, or "
>+                     "contains one of $8-$9");
>+
>+std::string Substitute(
>+    const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8)
>+    ABSL_BAD_CALL_IF(
>+        substitute_internal::PlaceholderBitmask(format) != 511,
>+        "There were 9 substitution arguments given, but "
>+        "this format std::string is either missing its $0-$8, or contains a $9");
>+
>+std::string Substitute(
>+    const char* format, const substitute_internal::Arg& a0,
>+    const substitute_internal::Arg& a1, const substitute_internal::Arg& a2,
>+    const substitute_internal::Arg& a3, const substitute_internal::Arg& a4,
>+    const substitute_internal::Arg& a5, const substitute_internal::Arg& a6,
>+    const substitute_internal::Arg& a7, const substitute_internal::Arg& a8,
>+    const substitute_internal::Arg& a9)
>+    ABSL_BAD_CALL_IF(substitute_internal::PlaceholderBitmask(format) != 1023,
>+                     "There were 10 substitution arguments given, but this "
>+                     "format std::string doesn't contain all of $0 through $9");
>+#endif  // ABSL_BAD_CALL_IF
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_STRINGS_SUBSTITUTE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..144df01ec184f5d09f3be89b86e0bfeed5e14ade
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/substitute_test.cc
>@@ -0,0 +1,192 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/strings/substitute.h"
>+
>+#include <cstdint>
>+
>+#include "gtest/gtest.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+TEST(SubstituteTest, Substitute) {
>+  // Basic.
>+  EXPECT_EQ("Hello, world!", absl::Substitute("$0, $1!", "Hello", "world"));
>+
>+  // Non-char* types.
>+  EXPECT_EQ("123 0.2 0.1 foo true false x",
>+            absl::Substitute("$0 $1 $2 $3 $4 $5 $6", 123, 0.2, 0.1f,
>+                             std::string("foo"), true, false, 'x'));
>+
>+  // All int types.
>+  EXPECT_EQ(
>+      "-32767 65535 "
>+      "-1234567890 3234567890 "
>+      "-1234567890 3234567890 "
>+      "-1234567890123456789 9234567890123456789",
>+      absl::Substitute(
>+          "$0 $1 $2 $3 $4 $5 $6 $7",
>+          static_cast<short>(-32767),          // NOLINT(runtime/int)
>+          static_cast<unsigned short>(65535),  // NOLINT(runtime/int)
>+          -1234567890, 3234567890U, -1234567890L, 3234567890UL,
>+          -int64_t{1234567890123456789}, uint64_t{9234567890123456789u}));
>+
>+  // Hex format
>+  EXPECT_EQ("0 1 f ffff0ffff 0123456789abcdef",
>+            absl::Substitute("$0$1$2$3$4 $5",  //
>+                             absl::Hex(0), absl::Hex(1, absl::kSpacePad2),
>+                             absl::Hex(0xf, absl::kSpacePad2),
>+                             absl::Hex(int16_t{-1}, absl::kSpacePad5),
>+                             absl::Hex(int16_t{-1}, absl::kZeroPad5),
>+                             absl::Hex(0x123456789abcdef, absl::kZeroPad16)));
>+
>+  // Dec format
>+  EXPECT_EQ("0 115   -1-0001 81985529216486895",
>+            absl::Substitute("$0$1$2$3$4 $5",  //
>+                             absl::Dec(0), absl::Dec(1, absl::kSpacePad2),
>+                             absl::Dec(0xf, absl::kSpacePad2),
>+                             absl::Dec(int16_t{-1}, absl::kSpacePad5),
>+                             absl::Dec(int16_t{-1}, absl::kZeroPad5),
>+                             absl::Dec(0x123456789abcdef, absl::kZeroPad16)));
>+
>+  // Pointer.
>+  const int* int_p = reinterpret_cast<const int*>(0x12345);
>+  std::string str = absl::Substitute("$0", int_p);
>+  EXPECT_EQ(absl::StrCat("0x", absl::Hex(int_p)), str);
>+
>+  // Volatile Pointer.
>+  // Like C++ streamed I/O, such pointers implicitly become bool
>+  volatile int vol = 237;
>+  volatile int *volatile volptr = &vol;
>+  str = absl::Substitute("$0", volptr);
>+  EXPECT_EQ("true", str);
>+
>+  // null is special. StrCat prints 0x0. Substitute prints NULL.
>+  const uint64_t* null_p = nullptr;
>+  str = absl::Substitute("$0", null_p);
>+  EXPECT_EQ("NULL", str);
>+
>+  // char* is also special.
>+  const char* char_p = "print me";
>+  str = absl::Substitute("$0", char_p);
>+  EXPECT_EQ("print me", str);
>+
>+  char char_buf[16];
>+  strncpy(char_buf, "print me too", sizeof(char_buf));
>+  str = absl::Substitute("$0", char_buf);
>+  EXPECT_EQ("print me too", str);
>+
>+  // null char* is "doubly" special. Represented as the empty std::string.
>+  char_p = nullptr;
>+  str = absl::Substitute("$0", char_p);
>+  EXPECT_EQ("", str);
>+
>+  // Out-of-order.
>+  EXPECT_EQ("b, a, c, b", absl::Substitute("$1, $0, $2, $1", "a", "b", "c"));
>+
>+  // Literal $
>+  EXPECT_EQ("$", absl::Substitute("$$"));
>+
>+  EXPECT_EQ("$1", absl::Substitute("$$1"));
>+
>+  // Test all overloads.
>+  EXPECT_EQ("a", absl::Substitute("$0", "a"));
>+  EXPECT_EQ("a b", absl::Substitute("$0 $1", "a", "b"));
>+  EXPECT_EQ("a b c", absl::Substitute("$0 $1 $2", "a", "b", "c"));
>+  EXPECT_EQ("a b c d", absl::Substitute("$0 $1 $2 $3", "a", "b", "c", "d"));
>+  EXPECT_EQ("a b c d e",
>+            absl::Substitute("$0 $1 $2 $3 $4", "a", "b", "c", "d", "e"));
>+  EXPECT_EQ("a b c d e f", absl::Substitute("$0 $1 $2 $3 $4 $5", "a", "b", "c",
>+                                            "d", "e", "f"));
>+  EXPECT_EQ("a b c d e f g", absl::Substitute("$0 $1 $2 $3 $4 $5 $6", "a", "b",
>+                                              "c", "d", "e", "f", "g"));
>+  EXPECT_EQ("a b c d e f g h",
>+            absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7", "a", "b", "c", "d", "e",
>+                             "f", "g", "h"));
>+  EXPECT_EQ("a b c d e f g h i",
>+            absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8", "a", "b", "c", "d",
>+                             "e", "f", "g", "h", "i"));
>+  EXPECT_EQ("a b c d e f g h i j",
>+            absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8 $9", "a", "b", "c",
>+                             "d", "e", "f", "g", "h", "i", "j"));
>+  EXPECT_EQ("a b c d e f g h i j b0",
>+            absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8 $9 $10", "a", "b", "c",
>+                             "d", "e", "f", "g", "h", "i", "j"));
>+
>+  const char* null_cstring = nullptr;
>+  EXPECT_EQ("Text: ''", absl::Substitute("Text: '$0'", null_cstring));
>+}
>+
>+TEST(SubstituteTest, SubstituteAndAppend) {
>+  std::string str = "Hello";
>+  absl::SubstituteAndAppend(&str, ", $0!", "world");
>+  EXPECT_EQ("Hello, world!", str);
>+
>+  // Test all overloads.
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0", "a");
>+  EXPECT_EQ("a", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1", "a", "b");
>+  EXPECT_EQ("a b", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2", "a", "b", "c");
>+  EXPECT_EQ("a b c", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3", "a", "b", "c", "d");
>+  EXPECT_EQ("a b c d", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4", "a", "b", "c", "d", "e");
>+  EXPECT_EQ("a b c d e", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5", "a", "b", "c", "d", "e",
>+                            "f");
>+  EXPECT_EQ("a b c d e f", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6", "a", "b", "c", "d",
>+                            "e", "f", "g");
>+  EXPECT_EQ("a b c d e f g", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7", "a", "b", "c", "d",
>+                            "e", "f", "g", "h");
>+  EXPECT_EQ("a b c d e f g h", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7 $8", "a", "b", "c",
>+                            "d", "e", "f", "g", "h", "i");
>+  EXPECT_EQ("a b c d e f g h i", str);
>+  str.clear();
>+  absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7 $8 $9", "a", "b",
>+                            "c", "d", "e", "f", "g", "h", "i", "j");
>+  EXPECT_EQ("a b c d e f g h i j", str);
>+}
>+
>+#ifdef GTEST_HAS_DEATH_TEST
>+
>+TEST(SubstituteDeathTest, SubstituteDeath) {
>+  EXPECT_DEBUG_DEATH(
>+      static_cast<void>(absl::Substitute(absl::string_view("-$2"), "a", "b")),
>+      "Invalid strings::Substitute\$\$ format std::string: asked for \"\\$2\", "
>+      "but only 2 args were given.");
>+  EXPECT_DEBUG_DEATH(
>+      static_cast<void>(absl::Substitute("-$z-")),
>+      "Invalid strings::Substitute\$\$ format std::string: \"-\\$z-\"");
>+  EXPECT_DEBUG_DEATH(
>+      static_cast<void>(absl::Substitute("-$")),
>+      "Invalid strings::Substitute\$\$ format std::string: \"-\\$\"");
>+}
>+
>+#endif  // GTEST_HAS_DEATH_TEST
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-1.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-1.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..19b909733ae379047f40da2e28199614c3621a53
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-1.txt
>@@ -0,0 +1,3 @@
>+alpha
>+
>+beta gamma
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-2.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-2.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..d6842d8ee362391bd9f9290f22dd8e868011570b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/strings/testdata/getline-2.txt
>@@ -0,0 +1 @@
>+one.two.three
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..8d302e01223b45bd92a21670a11f5592f9b15c64
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.bazel
>@@ -0,0 +1,234 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+# Internal data structure for efficiently detecting mutex dependency cycles
>+cc_library(
>+    name = "graphcycles_internal",
>+    srcs = [
>+        "internal/graphcycles.cc",
>+    ],
>+    hdrs = [
>+        "internal/graphcycles.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl:__subpackages__",
>+    ],
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:base_internal",
>+        "//absl/base:core_headers",
>+        "//absl/base:malloc_internal",
>+    ],
>+)
>+
>+cc_library(
>+    name = "synchronization",
>+    srcs = [
>+        "barrier.cc",
>+        "blocking_counter.cc",
>+        "internal/create_thread_identity.cc",
>+        "internal/per_thread_sem.cc",
>+        "internal/waiter.cc",
>+        "notification.cc",
>+    ] + select({
>+        "//conditions:default": ["mutex.cc"],
>+    }),
>+    hdrs = [
>+        "barrier.h",
>+        "blocking_counter.h",
>+        "internal/create_thread_identity.h",
>+        "internal/kernel_timeout.h",
>+        "internal/mutex_nonprod.inc",
>+        "internal/per_thread_sem.h",
>+        "internal/waiter.h",
>+        "mutex.h",
>+        "notification.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":graphcycles_internal",
>+        "//absl/base",
>+        "//absl/base:base_internal",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/base:dynamic_annotations",
>+        "//absl/base:malloc_internal",
>+        "//absl/debugging:stacktrace",
>+        "//absl/debugging:symbolize",
>+        "//absl/time",
>+    ],
>+)
>+
>+cc_test(
>+    name = "barrier_test",
>+    size = "small",
>+    srcs = ["barrier_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":synchronization",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "blocking_counter_test",
>+    size = "small",
>+    srcs = ["blocking_counter_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":synchronization",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "graphcycles_test",
>+    size = "medium",
>+    srcs = ["internal/graphcycles_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":graphcycles_internal",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "graphcycles_benchmark",
>+    srcs = ["internal/graphcycles_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = [
>+        "benchmark",
>+    ],
>+    deps = [
>+        ":graphcycles_internal",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "thread_pool",
>+    testonly = 1,
>+    hdrs = ["internal/thread_pool.h"],
>+    deps = [
>+        ":synchronization",
>+        "//absl/base:core_headers",
>+    ],
>+)
>+
>+cc_test(
>+    name = "mutex_test",
>+    size = "large",
>+    srcs = ["mutex_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":synchronization",
>+        ":thread_pool",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "mutex_benchmark",
>+    srcs = ["mutex_benchmark.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        ":synchronization",
>+        ":thread_pool",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "notification_test",
>+    size = "small",
>+    srcs = ["notification_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":synchronization",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "per_thread_sem_test_common",
>+    testonly = 1,
>+    srcs = ["internal/per_thread_sem_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":synchronization",
>+        "//absl/base",
>+        "//absl/strings",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest",
>+    ],
>+    alwayslink = 1,
>+)
>+
>+cc_test(
>+    name = "per_thread_sem_test",
>+    size = "medium",
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":per_thread_sem_test_common",
>+        ":synchronization",
>+        "//absl/base",
>+        "//absl/strings",
>+        "//absl/time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "lifetime_test",
>+    srcs = [
>+        "lifetime_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    linkopts = select({
>+        "//absl:windows": [],
>+        "//conditions:default": ["-pthread"],
>+    }),
>+    tags = ["no_test_ios_x86_64"],
>+    deps = [
>+        ":synchronization",
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..3664aa13274f4040f9369b95f40deef2b590db8f
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/BUILD.gn
>@@ -0,0 +1,116 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("graphcycles_internal") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/graphcycles.cc",
>+  ]
>+  public = [
>+    "internal/graphcycles.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:base_internal",
>+    "../base:core_headers",
>+    "../base:malloc_internal",
>+  ]
>+  visibility = []
>+  visibility += [ "../*" ]
>+}
>+
>+source_set("synchronization") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "barrier.cc",
>+    "blocking_counter.cc",
>+    "internal/create_thread_identity.cc",
>+    "internal/per_thread_sem.cc",
>+    "internal/waiter.cc",
>+    "notification.cc",
>+    "mutex.cc"
>+  ]
>+  public = [
>+    "barrier.h",
>+    "blocking_counter.h",
>+    "internal/create_thread_identity.h",
>+    "internal/kernel_timeout.h",
>+    "internal/mutex_nonprod.inc",
>+    "internal/per_thread_sem.h",
>+    "internal/waiter.h",
>+    "mutex.h",
>+    "notification.h",
>+  ]
>+  deps = [
>+    ":graphcycles_internal",
>+    "../base",
>+    "../base:base_internal",
>+    "../base:config",
>+    "../base:core_headers",
>+    "../base:dynamic_annotations",
>+    "../base:malloc_internal",
>+    "../debugging:stacktrace",
>+    "../debugging:symbolize",
>+    "../time",
>+  ]
>+}
>+
>+source_set("thread_pool") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "internal/thread_pool.h",
>+  ]
>+  deps = [
>+    ":synchronization",
>+    "../base:core_headers",
>+  ]
>+}
>+
>+source_set("per_thread_sem_test_common") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_test_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/per_thread_sem_test.cc",
>+  ]
>+  deps = [
>+    ":synchronization",
>+    "../base",
>+    "../strings",
>+    "../time",
>+    "//testing/gtest",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..de0d7b7d45007c07a33663c96498e6f390107f09
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/CMakeLists.txt
>@@ -0,0 +1,155 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND SYNCHRONIZATION_PUBLIC_HEADERS
>+  "barrier.h"
>+  "blocking_counter.h"
>+  "mutex.h"
>+  "notification.h"
>+)
>+
>+
>+list(APPEND SYNCHRONIZATION_INTERNAL_HEADERS
>+  "internal/create_thread_identity.h"
>+  "internal/graphcycles.h"
>+  "internal/kernel_timeout.h"
>+  "internal/per_thread_sem.h"
>+  "internal/thread_pool.h"
>+  "internal/waiter.h"
>+)
>+
>+
>+
>+# synchronization library
>+list(APPEND SYNCHRONIZATION_SRC
>+  "barrier.cc"
>+  "blocking_counter.cc"
>+  "internal/create_thread_identity.cc"
>+  "internal/per_thread_sem.cc"
>+  "internal/waiter.cc"
>+  "internal/graphcycles.cc"
>+  "notification.cc"
>+  "mutex.cc"
>+)
>+
>+set(SYNCHRONIZATION_PUBLIC_LIBRARIES absl::base absl::stacktrace absl::symbolize absl::time)
>+
>+absl_library(
>+  TARGET
>+    absl_synchronization
>+  SOURCES
>+    ${SYNCHRONIZATION_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SYNCHRONIZATION_PUBLIC_LIBRARIES}
>+  EXPORT_NAME
>+    synchronization
>+)
>+
>+
>+#
>+## TESTS
>+#
>+
>+
>+# test barrier_test
>+set(BARRIER_TEST_SRC "barrier_test.cc")
>+set(BARRIER_TEST_PUBLIC_LIBRARIES absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    barrier_test
>+  SOURCES
>+    ${BARRIER_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${BARRIER_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test blocking_counter_test
>+set(BLOCKING_COUNTER_TEST_SRC "blocking_counter_test.cc")
>+set(BLOCKING_COUNTER_TEST_PUBLIC_LIBRARIES absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    blocking_counter_test
>+  SOURCES
>+    ${BLOCKING_COUNTER_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${BLOCKING_COUNTER_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test graphcycles_test
>+set(GRAPHCYCLES_TEST_SRC "internal/graphcycles_test.cc")
>+set(GRAPHCYCLES_TEST_PUBLIC_LIBRARIES absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    graphcycles_test
>+  SOURCES
>+    ${GRAPHCYCLES_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${GRAPHCYCLES_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test mutex_test
>+set(MUTEX_TEST_SRC "mutex_test.cc")
>+set(MUTEX_TEST_PUBLIC_LIBRARIES absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    mutex_test
>+  SOURCES
>+    ${MUTEX_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${MUTEX_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test notification_test
>+set(NOTIFICATION_TEST_SRC "notification_test.cc")
>+set(NOTIFICATION_TEST_PUBLIC_LIBRARIES absl::synchronization)
>+
>+absl_test(
>+  TARGET
>+    notification_test
>+  SOURCES
>+    ${NOTIFICATION_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${NOTIFICATION_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test per_thread_sem_test_common
>+set(PER_THREAD_SEM_TEST_COMMON_SRC "internal/per_thread_sem_test.cc")
>+set(PER_THREAD_SEM_TEST_COMMON_PUBLIC_LIBRARIES absl::synchronization absl::strings)
>+
>+absl_test(
>+  TARGET
>+    per_thread_sem_test_common
>+  SOURCES
>+    ${PER_THREAD_SEM_TEST_COMMON_SRC}
>+  PUBLIC_LIBRARIES
>+    ${PER_THREAD_SEM_TEST_COMMON_PUBLIC_LIBRARIES}
>+)
>+
>+
>+
>+
>+
>+
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a1b3ad5c21740b4eccd9aeaae152f688eec96be7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.cc
>@@ -0,0 +1,50 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/barrier.h"
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+
>+// Return whether int *arg is zero.
>+static bool IsZero(void *arg) {
>+  return 0 == *reinterpret_cast<int *>(arg);
>+}
>+
>+bool Barrier::Block() {
>+  MutexLock l(&this->lock_);
>+
>+  this->num_to_block_--;
>+  if (this->num_to_block_ < 0) {
>+    ABSL_RAW_LOG(
>+        FATAL,
>+        "Block() called too many times.  num_to_block_=%d out of total=%d",
>+        this->num_to_block_, this->num_to_exit_);
>+  }
>+
>+  this->lock_.Await(Condition(IsZero, &this->num_to_block_));
>+
>+  // Determine which thread can safely delete this Barrier object
>+  this->num_to_exit_--;
>+  ABSL_RAW_CHECK(this->num_to_exit_ >= 0, "barrier underflow");
>+
>+  // If num_to_exit_ == 0 then all other threads in the barrier have
>+  // exited the Wait() and have released the Mutex so this thread is
>+  // free to delete the barrier.
>+  return this->num_to_exit_ == 0;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..f834feec11dcbbbc23288167382d41a4ac7a8faf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier.h
>@@ -0,0 +1,77 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// barrier.h
>+// -----------------------------------------------------------------------------
>+
>+#ifndef ABSL_SYNCHRONIZATION_BARRIER_H_
>+#define ABSL_SYNCHRONIZATION_BARRIER_H_
>+
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+
>+// Barrier
>+//
>+// This class creates a barrier which blocks threads until a prespecified
>+// threshold of threads (`num_threads`) utilizes the barrier. A thread utilizes
>+// the `Barrier` by calling `Block()` on the barrier, which will block that
>+// thread; no call to `Block()` will return until `num_threads` threads have
>+// called it.
>+//
>+// Exactly one call to `Block()` will return `true`, which is then responsible
>+// for destroying the barrier; because stack allocation will cause the barrier
>+// to be deleted when it is out of scope, barriers should not be stack
>+// allocated.
>+//
>+// Example:
>+//
>+//   // Main thread creates a `Barrier`:
>+//   barrier = new Barrier(num_threads);
>+//
>+//   // Each participating thread could then call:
>+//   if (barrier->Block()) delete barrier;  // Exactly one call to `Block()`
>+//                                          // returns `true`; that call
>+//                                          // deletes the barrier.
>+class Barrier {
>+ public:
>+  // `num_threads` is the number of threads that will participate in the barrier
>+  explicit Barrier(int num_threads)
>+      : num_to_block_(num_threads), num_to_exit_(num_threads) {}
>+
>+  Barrier(const Barrier&) = delete;
>+  Barrier& operator=(const Barrier&) = delete;
>+
>+  // Barrier::Block()
>+  //
>+  // Blocks the current thread, and returns only when the `num_threads`
>+  // threshold of threads utilizing this barrier has been reached. `Block()`
>+  // returns `true` for precisely one caller, which may then destroy the
>+  // barrier.
>+  //
>+  // Memory ordering: For any threads X and Y, any action taken by X
>+  // before X calls `Block()` will be visible to Y after Y returns from
>+  // `Block()`.
>+  bool Block();
>+
>+ private:
>+  Mutex lock_;
>+  int num_to_block_ GUARDED_BY(lock_);
>+  int num_to_exit_ GUARDED_BY(lock_);
>+};
>+
>+}  // namespace absl
>+#endif  // ABSL_SYNCHRONIZATION_BARRIER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d6cababdf73315f2616e813c4f18f91c67bc360b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/barrier_test.cc
>@@ -0,0 +1,75 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/barrier.h"
>+
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/synchronization/mutex.h"
>+#include "absl/time/clock.h"
>+
>+
>+TEST(Barrier, SanityTest) {
>+  constexpr int kNumThreads = 10;
>+  absl::Barrier* barrier = new absl::Barrier(kNumThreads);
>+
>+  absl::Mutex mutex;
>+  int counter = 0;  // Guarded by mutex.
>+
>+  auto thread_func = [&] {
>+    if (barrier->Block()) {
>+      // This thread is the last thread to reach the barrier so it is
>+      // responsible for deleting it.
>+      delete barrier;
>+    }
>+
>+    // Increment the counter.
>+    absl::MutexLock lock(&mutex);
>+    ++counter;
>+  };
>+
>+  // Start (kNumThreads - 1) threads running thread_func.
>+  std::vector<std::thread> threads;
>+  for (int i = 0; i < kNumThreads - 1; ++i) {
>+    threads.push_back(std::thread(thread_func));
>+  }
>+
>+  // Give (kNumThreads - 1) threads a chance to reach the barrier.
>+  // This test assumes at least one thread will have run after the
>+  // sleep has elapsed. Sleeping in a test is usually bad form, but we
>+  // need to make sure that we are testing the barrier instead of some
>+  // other synchronization method.
>+  absl::SleepFor(absl::Seconds(1));
>+
>+  // The counter should still be zero since no thread should have
>+  // been able to pass the barrier yet.
>+  {
>+    absl::MutexLock lock(&mutex);
>+    EXPECT_EQ(counter, 0);
>+  }
>+
>+  // Start 1 more thread. This should make all threads pass the barrier.
>+  threads.push_back(std::thread(thread_func));
>+
>+  // All threads should now be able to proceed and finish.
>+  for (auto& thread : threads) {
>+    thread.join();
>+  }
>+
>+  // All threads should now have incremented the counter.
>+  absl::MutexLock lock(&mutex);
>+  EXPECT_EQ(counter, kNumThreads);
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7e68e960bc3ad407e2b92fe0419791f56b768d97
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.cc
>@@ -0,0 +1,55 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/blocking_counter.h"
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+// Return whether int *arg is zero.
>+static bool IsZero(void *arg) {
>+  return 0 == *reinterpret_cast<int *>(arg);
>+}
>+
>+bool BlockingCounter::DecrementCount() {
>+  MutexLock l(&lock_);
>+  count_--;
>+  if (count_ < 0) {
>+    ABSL_RAW_LOG(
>+        FATAL,
>+        "BlockingCounter::DecrementCount() called too many times.  count=%d",
>+        count_);
>+  }
>+  return count_ == 0;
>+}
>+
>+void BlockingCounter::Wait() {
>+  MutexLock l(&this->lock_);
>+  ABSL_RAW_CHECK(count_ >= 0, "BlockingCounter underflow");
>+
>+  // only one thread may call Wait(). To support more than one thread,
>+  // implement a counter num_to_exit, like in the Barrier class.
>+  ABSL_RAW_CHECK(num_waiting_ == 0, "multiple threads called Wait()");
>+  num_waiting_++;
>+
>+  this->lock_.Await(Condition(IsZero, &this->count_));
>+
>+  // At this point, We know that all threads executing DecrementCount have
>+  // released the lock, and so will not touch this object again.
>+  // Therefore, the thread calling this method is free to delete the object
>+  // after we return from this method.
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..557ed028fe5223c9cc25a02ece5a6c5f563d9cab
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter.h
>@@ -0,0 +1,97 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// blocking_counter.h
>+// -----------------------------------------------------------------------------
>+
>+#ifndef ABSL_SYNCHRONIZATION_BLOCKING_COUNTER_H_
>+#define ABSL_SYNCHRONIZATION_BLOCKING_COUNTER_H_
>+
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+
>+// BlockingCounter
>+//
>+// This class allows a thread to block for a pre-specified number of actions.
>+// `BlockingCounter` maintains a single non-negative abstract integer "count"
>+// with an initial value `initial_count`. A thread can then call `Wait()` on
>+// this blocking counter to block until the specified number of events occur;
>+// worker threads then call 'DecrementCount()` on the counter upon completion of
>+// their work. Once the counter's internal "count" reaches zero, the blocked
>+// thread unblocks.
>+//
>+// A `BlockingCounter` requires the following:
>+//     - its `initial_count` is non-negative.
>+//     - the number of calls to `DecrementCount()` on it is at most
>+//       `initial_count`.
>+//     - `Wait()` is called at most once on it.
>+//
>+// Given the above requirements, a `BlockingCounter` provides the following
>+// guarantees:
>+//     - Once its internal "count" reaches zero, no legal action on the object
>+//       can further change the value of "count".
>+//     - When `Wait()` returns, it is legal to destroy the `BlockingCounter`.
>+//     - When `Wait()` returns, the number of calls to `DecrementCount()` on
>+//       this blocking counter exactly equals `initial_count`.
>+//
>+// Example:
>+//     BlockingCounter bcount(N);         // there are N items of work
>+//     ... Allow worker threads to start.
>+//     ... On completing each work item, workers do:
>+//     ... bcount.DecrementCount();      // an item of work has been completed
>+//
>+//     bcount.Wait();                    // wait for all work to be complete
>+//
>+class BlockingCounter {
>+ public:
>+  explicit BlockingCounter(int initial_count)
>+      : count_(initial_count), num_waiting_(0) {}
>+
>+  BlockingCounter(const BlockingCounter&) = delete;
>+  BlockingCounter& operator=(const BlockingCounter&) = delete;
>+
>+  // BlockingCounter::DecrementCount()
>+  //
>+  // Decrements the counter's "count" by one, and return "count == 0". This
>+  // function requires that "count != 0" when it is called.
>+  //
>+  // Memory ordering: For any threads X and Y, any action taken by X
>+  // before it calls `DecrementCount()` is visible to thread Y after
>+  // Y's call to `DecrementCount()`, provided Y's call returns `true`.
>+  bool DecrementCount();
>+
>+  // BlockingCounter::Wait()
>+  //
>+  // Blocks until the counter reaches zero. This function may be called at most
>+  // once. On return, `DecrementCount()` will have been called "initial_count"
>+  // times and the blocking counter may be destroyed.
>+  //
>+  // Memory ordering: For any threads X and Y, any action taken by X
>+  // before X calls `DecrementCount()` is visible to Y after Y returns
>+  // from `Wait()`.
>+  void Wait();
>+
>+ private:
>+  Mutex lock_;
>+  int count_ GUARDED_BY(lock_);
>+  int num_waiting_ GUARDED_BY(lock_);
>+};
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_SYNCHRONIZATION_BLOCKING_COUNTER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e8223f841a5f07c9334d12835e5c1d6968464215
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/blocking_counter_test.cc
>@@ -0,0 +1,66 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/blocking_counter.h"
>+
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/time/clock.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+namespace {
>+
>+void PauseAndDecreaseCounter(BlockingCounter* counter, int* done) {
>+  absl::SleepFor(absl::Seconds(1));
>+  *done = 1;
>+  counter->DecrementCount();
>+}
>+
>+TEST(BlockingCounterTest, BasicFunctionality) {
>+  // This test verifies that BlockingCounter functions correctly. Starts a
>+  // number of threads that just sleep for a second and decrement a counter.
>+
>+  // Initialize the counter.
>+  const int num_workers = 10;
>+  BlockingCounter counter(num_workers);
>+
>+  std::vector<std::thread> workers;
>+  std::vector<int> done(num_workers, 0);
>+
>+  // Start a number of parallel tasks that will just wait for a seconds and
>+  // then decrement the count.
>+  workers.reserve(num_workers);
>+  for (int k = 0; k < num_workers; k++) {
>+    workers.emplace_back(
>+        [&counter, &done, k] { PauseAndDecreaseCounter(&counter, &done[k]); });
>+  }
>+
>+  // Wait for the threads to have all finished.
>+  counter.Wait();
>+
>+  // Check that all the workers have completed.
>+  for (int k = 0; k < num_workers; k++) {
>+    EXPECT_EQ(1, done[k]);
>+  }
>+
>+  for (std::thread& w : workers) {
>+    w.join();
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e7a65cd884a1d26cb97479a085bbf883095c5ee8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.cc
>@@ -0,0 +1,112 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <stdint.h>
>+#include <new>
>+
>+// This file is a no-op if the required LowLevelAlloc support is missing.
>+#include "absl/base/internal/low_level_alloc.h"
>+#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
>+
>+#include <string.h>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// ThreadIdentity storage is persistent, we maintain a free-list of previously
>+// released ThreadIdentity objects.
>+static base_internal::SpinLock freelist_lock(base_internal::kLinkerInitialized);
>+static base_internal::ThreadIdentity* thread_identity_freelist;
>+
>+// A per-thread destructor for reclaiming associated ThreadIdentity objects.
>+// Since we must preserve their storage we cache them for re-use.
>+static void ReclaimThreadIdentity(void* v) {
>+  base_internal::ThreadIdentity* identity =
>+      static_cast<base_internal::ThreadIdentity*>(v);
>+
>+  // all_locks might have been allocated by the Mutex implementation.
>+  // We free it here when we are notified that our thread is dying.
>+  if (identity->per_thread_synch.all_locks != nullptr) {
>+    base_internal::LowLevelAlloc::Free(identity->per_thread_synch.all_locks);
>+  }
>+
>+  // We must explicitly clear the current thread's identity:
>+  // (a) Subsequent (unrelated) per-thread destructors may require an identity.
>+  //     We must guarantee a new identity is used in this case (this instructor
>+  //     will be reinvoked up to PTHREAD_DESTRUCTOR_ITERATIONS in this case).
>+  // (b) ThreadIdentity implementations may depend on memory that is not
>+  //     reinitialized before reuse.  We must allow explicit clearing of the
>+  //     association state in this case.
>+  base_internal::ClearCurrentThreadIdentity();
>+  {
>+    base_internal::SpinLockHolder l(&freelist_lock);
>+    identity->next = thread_identity_freelist;
>+    thread_identity_freelist = identity;
>+  }
>+}
>+
>+// Return value rounded up to next multiple of align.
>+// Align must be a power of two.
>+static intptr_t RoundUp(intptr_t addr, intptr_t align) {
>+  return (addr + align - 1) & ~(align - 1);
>+}
>+
>+static base_internal::ThreadIdentity* NewThreadIdentity() {
>+  base_internal::ThreadIdentity* identity = nullptr;
>+
>+  {
>+    // Re-use a previously released object if possible.
>+    base_internal::SpinLockHolder l(&freelist_lock);
>+    if (thread_identity_freelist) {
>+      identity = thread_identity_freelist;  // Take list-head.
>+      thread_identity_freelist = thread_identity_freelist->next;
>+    }
>+  }
>+
>+  if (identity == nullptr) {
>+    // Allocate enough space to align ThreadIdentity to a multiple of
>+    // PerThreadSynch::kAlignment. This space is never released (it is
>+    // added to a freelist by ReclaimThreadIdentity instead).
>+    void* allocation = base_internal::LowLevelAlloc::Alloc(
>+        sizeof(*identity) + base_internal::PerThreadSynch::kAlignment - 1);
>+    // Round up the address to the required alignment.
>+    identity = reinterpret_cast<base_internal::ThreadIdentity*>(
>+        RoundUp(reinterpret_cast<intptr_t>(allocation),
>+                base_internal::PerThreadSynch::kAlignment));
>+  }
>+  memset(identity, 0, sizeof(*identity));
>+
>+  return identity;
>+}
>+
>+// Allocates and attaches ThreadIdentity object for the calling thread.  Returns
>+// the new identity.
>+// REQUIRES: CurrentThreadIdentity(false) == nullptr
>+base_internal::ThreadIdentity* CreateThreadIdentity() {
>+  base_internal::ThreadIdentity* identity = NewThreadIdentity();
>+  PerThreadSem::Init(identity);
>+  // Associate the value with the current thread, and attach our destructor.
>+  base_internal::SetCurrentThreadIdentity(identity, ReclaimThreadIdentity);
>+  return identity;
>+}
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_LOW_LEVEL_ALLOC_MISSING
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..1bb87dee630724980e87c3563c1e03b83dacdf59
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.h
>@@ -0,0 +1,53 @@
>+/*
>+ * Copyright 2017 The Abseil Authors.
>+ *
>+ * Licensed under the Apache License, Version 2.0 (the "License");
>+ * you may not use this file except in compliance with the License.
>+ * You may obtain a copy of the License at
>+ *
>+ *      http://www.apache.org/licenses/LICENSE-2.0
>+ *
>+ * Unless required by applicable law or agreed to in writing, software
>+ * distributed under the License is distributed on an "AS IS" BASIS,
>+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+ * See the License for the specific language governing permissions and
>+ * limitations under the License.
>+ */
>+
>+// Interface for getting the current ThreadIdentity, creating one if necessary.
>+// See thread_identity.h.
>+//
>+// This file is separate from thread_identity.h because creating a new
>+// ThreadIdentity requires slightly higher level libraries (per_thread_sem
>+// and low_level_alloc) than accessing an existing one.  This separation allows
>+// us to have a smaller //absl/base:base.
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_CREATE_THREAD_IDENTITY_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_CREATE_THREAD_IDENTITY_H_
>+
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/base/port.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// Allocates and attaches a ThreadIdentity object for the calling thread.
>+// For private use only.
>+base_internal::ThreadIdentity* CreateThreadIdentity();
>+
>+// Returns the ThreadIdentity object representing the calling thread; guaranteed
>+// to be unique for its lifetime.  The returned object will remain valid for the
>+// program's lifetime; although it may be re-assigned to a subsequent thread.
>+// If one does not exist for the calling thread, allocate it now.
>+inline base_internal::ThreadIdentity* GetOrCreateCurrentThreadIdentity() {
>+  base_internal::ThreadIdentity* identity =
>+      base_internal::CurrentThreadIdentityIfPresent();
>+  if (ABSL_PREDICT_FALSE(identity == nullptr)) {
>+    return CreateThreadIdentity();
>+  }
>+  return identity;
>+}
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+#endif  // ABSL_SYNCHRONIZATION_INTERNAL_CREATE_THREAD_IDENTITY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ab1f3f84e74c1d7edef6379e02684b00b53a7e34
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.cc
>@@ -0,0 +1,699 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// GraphCycles provides incremental cycle detection on a dynamic
>+// graph using the following algorithm:
>+//
>+// A dynamic topological sort algorithm for directed acyclic graphs
>+// David J. Pearce, Paul H. J. Kelly
>+// Journal of Experimental Algorithmics (JEA) JEA Homepage archive
>+// Volume 11, 2006, Article No. 1.7
>+//
>+// Brief summary of the algorithm:
>+//
>+// (1) Maintain a rank for each node that is consistent
>+//     with the topological sort of the graph. I.e., path from x to y
>+//     implies rank[x] < rank[y].
>+// (2) When a new edge (x->y) is inserted, do nothing if rank[x] < rank[y].
>+// (3) Otherwise: adjust ranks in the neighborhood of x and y.
>+
>+#include "absl/base/attributes.h"
>+// This file is a no-op if the required LowLevelAlloc support is missing.
>+#include "absl/base/internal/low_level_alloc.h"
>+#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
>+
>+#include "absl/synchronization/internal/graphcycles.h"
>+
>+#include <algorithm>
>+#include <array>
>+#include "absl/base/internal/hide_ptr.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+
>+// Do not use STL.   This module does not use standard memory allocation.
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+namespace {
>+
>+// Avoid LowLevelAlloc's default arena since it calls malloc hooks in
>+// which people are doing things like acquiring Mutexes.
>+static absl::base_internal::SpinLock arena_mu(
>+    absl::base_internal::kLinkerInitialized);
>+static base_internal::LowLevelAlloc::Arena* arena;
>+
>+static void InitArenaIfNecessary() {
>+  arena_mu.Lock();
>+  if (arena == nullptr) {
>+    arena = base_internal::LowLevelAlloc::NewArena(0);
>+  }
>+  arena_mu.Unlock();
>+}
>+
>+// Number of inlined elements in Vec.  Hash table implementation
>+// relies on this being a power of two.
>+static const uint32_t kInline = 8;
>+
>+// A simple LowLevelAlloc based resizable vector with inlined storage
>+// for a few elements.  T must be a plain type since constructor
>+// and destructor are not run on elements of type T managed by Vec.
>+template <typename T>
>+class Vec {
>+ public:
>+  Vec() { Init(); }
>+  ~Vec() { Discard(); }
>+
>+  void clear() {
>+    Discard();
>+    Init();
>+  }
>+
>+  bool empty() const { return size_ == 0; }
>+  uint32_t size() const { return size_; }
>+  T* begin() { return ptr_; }
>+  T* end() { return ptr_ + size_; }
>+  const T& operator[](uint32_t i) const { return ptr_[i]; }
>+  T& operator[](uint32_t i) { return ptr_[i]; }
>+  const T& back() const { return ptr_[size_-1]; }
>+  void pop_back() { size_--; }
>+
>+  void push_back(const T& v) {
>+    if (size_ == capacity_) Grow(size_ + 1);
>+    ptr_[size_] = v;
>+    size_++;
>+  }
>+
>+  void resize(uint32_t n) {
>+    if (n > capacity_) Grow(n);
>+    size_ = n;
>+  }
>+
>+  void fill(const T& val) {
>+    for (uint32_t i = 0; i < size(); i++) {
>+      ptr_[i] = val;
>+    }
>+  }
>+
>+  // Guarantees src is empty at end.
>+  // Provided for the hash table resizing code below.
>+  void MoveFrom(Vec<T>* src) {
>+    if (src->ptr_ == src->space_) {
>+      // Need to actually copy
>+      resize(src->size_);
>+      std::copy(src->ptr_, src->ptr_ + src->size_, ptr_);
>+      src->size_ = 0;
>+    } else {
>+      Discard();
>+      ptr_ = src->ptr_;
>+      size_ = src->size_;
>+      capacity_ = src->capacity_;
>+      src->Init();
>+    }
>+  }
>+
>+ private:
>+  T* ptr_;
>+  T space_[kInline];
>+  uint32_t size_;
>+  uint32_t capacity_;
>+
>+  void Init() {
>+    ptr_ = space_;
>+    size_ = 0;
>+    capacity_ = kInline;
>+  }
>+
>+  void Discard() {
>+    if (ptr_ != space_) base_internal::LowLevelAlloc::Free(ptr_);
>+  }
>+
>+  void Grow(uint32_t n) {
>+    while (capacity_ < n) {
>+      capacity_ *= 2;
>+    }
>+    size_t request = static_cast<size_t>(capacity_) * sizeof(T);
>+    T* copy = static_cast<T*>(
>+        base_internal::LowLevelAlloc::AllocWithArena(request, arena));
>+    std::copy(ptr_, ptr_ + size_, copy);
>+    Discard();
>+    ptr_ = copy;
>+  }
>+
>+  Vec(const Vec&) = delete;
>+  Vec& operator=(const Vec&) = delete;
>+};
>+
>+// A hash set of non-negative int32_t that uses Vec for its underlying storage.
>+class NodeSet {
>+ public:
>+  NodeSet() { Init(); }
>+
>+  void clear() { Init(); }
>+  bool contains(int32_t v) const { return table_[FindIndex(v)] == v; }
>+
>+  bool insert(int32_t v) {
>+    uint32_t i = FindIndex(v);
>+    if (table_[i] == v) {
>+      return false;
>+    }
>+    if (table_[i] == kEmpty) {
>+      // Only inserting over an empty cell increases the number of occupied
>+      // slots.
>+      occupied_++;
>+    }
>+    table_[i] = v;
>+    // Double when 75% full.
>+    if (occupied_ >= table_.size() - table_.size()/4) Grow();
>+    return true;
>+  }
>+
>+  void erase(uint32_t v) {
>+    uint32_t i = FindIndex(v);
>+    if (static_cast<uint32_t>(table_[i]) == v) {
>+      table_[i] = kDel;
>+    }
>+  }
>+
>+  // Iteration: is done via HASH_FOR_EACH
>+  // Example:
>+  //    HASH_FOR_EACH(elem, node->out) { ... }
>+#define HASH_FOR_EACH(elem, eset) \
>+  for (int32_t elem, _cursor = 0; (eset).Next(&_cursor, &elem); )
>+  bool Next(int32_t* cursor, int32_t* elem) {
>+    while (static_cast<uint32_t>(*cursor) < table_.size()) {
>+      int32_t v = table_[*cursor];
>+      (*cursor)++;
>+      if (v >= 0) {
>+        *elem = v;
>+        return true;
>+      }
>+    }
>+    return false;
>+  }
>+
>+ private:
>+  static const int32_t kEmpty;
>+  static const int32_t kDel;
>+  Vec<int32_t> table_;
>+  uint32_t occupied_;     // Count of non-empty slots (includes deleted slots)
>+
>+  static uint32_t Hash(uint32_t a) { return a * 41; }
>+
>+  // Return index for storing v.  May return an empty index or deleted index
>+  int FindIndex(int32_t v) const {
>+    // Search starting at hash index.
>+    const uint32_t mask = table_.size() - 1;
>+    uint32_t i = Hash(v) & mask;
>+    int deleted_index = -1;  // If >= 0, index of first deleted element we see
>+    while (true) {
>+      int32_t e = table_[i];
>+      if (v == e) {
>+        return i;
>+      } else if (e == kEmpty) {
>+        // Return any previously encountered deleted slot.
>+        return (deleted_index >= 0) ? deleted_index : i;
>+      } else if (e == kDel && deleted_index < 0) {
>+        // Keep searching since v might be present later.
>+        deleted_index = i;
>+      }
>+      i = (i + 1) & mask;  // Linear probing; quadratic is slightly slower.
>+    }
>+  }
>+
>+  void Init() {
>+    table_.clear();
>+    table_.resize(kInline);
>+    table_.fill(kEmpty);
>+    occupied_ = 0;
>+  }
>+
>+  void Grow() {
>+    Vec<int32_t> copy;
>+    copy.MoveFrom(&table_);
>+    occupied_ = 0;
>+    table_.resize(copy.size() * 2);
>+    table_.fill(kEmpty);
>+
>+    for (const auto& e : copy) {
>+      if (e >= 0) insert(e);
>+    }
>+  }
>+
>+  NodeSet(const NodeSet&) = delete;
>+  NodeSet& operator=(const NodeSet&) = delete;
>+};
>+
>+const int32_t NodeSet::kEmpty = -1;
>+const int32_t NodeSet::kDel = -2;
>+
>+// We encode a node index and a node version in GraphId.  The version
>+// number is incremented when the GraphId is freed which automatically
>+// invalidates all copies of the GraphId.
>+
>+inline GraphId MakeId(int32_t index, uint32_t version) {
>+  GraphId g;
>+  g.handle =
>+      (static_cast<uint64_t>(version) << 32) | static_cast<uint32_t>(index);
>+  return g;
>+}
>+
>+inline int32_t NodeIndex(GraphId id) {
>+  return static_cast<uint32_t>(id.handle & 0xfffffffful);
>+}
>+
>+inline uint32_t NodeVersion(GraphId id) {
>+  return static_cast<uint32_t>(id.handle >> 32);
>+}
>+
>+struct Node {
>+  int32_t rank;               // rank number assigned by Pearce-Kelly algorithm
>+  uint32_t version;           // Current version number
>+  int32_t next_hash;          // Next entry in hash table
>+  bool visited;               // Temporary marker used by depth-first-search
>+  uintptr_t masked_ptr;       // User-supplied pointer
>+  NodeSet in;                 // List of immediate predecessor nodes in graph
>+  NodeSet out;                // List of immediate successor nodes in graph
>+  int priority;               // Priority of recorded stack trace.
>+  int nstack;                 // Depth of recorded stack trace.
>+  void* stack[40];            // stack[0,nstack-1] holds stack trace for node.
>+};
>+
>+// Hash table for pointer to node index lookups.
>+class PointerMap {
>+ public:
>+  explicit PointerMap(const Vec<Node*>* nodes) : nodes_(nodes) {
>+    table_.fill(-1);
>+  }
>+
>+  int32_t Find(void* ptr) {
>+    auto masked = base_internal::HidePtr(ptr);
>+    for (int32_t i = table_[Hash(ptr)]; i != -1;) {
>+      Node* n = (*nodes_)[i];
>+      if (n->masked_ptr == masked) return i;
>+      i = n->next_hash;
>+    }
>+    return -1;
>+  }
>+
>+  void Add(void* ptr, int32_t i) {
>+    int32_t* head = &table_[Hash(ptr)];
>+    (*nodes_)[i]->next_hash = *head;
>+    *head = i;
>+  }
>+
>+  int32_t Remove(void* ptr) {
>+    // Advance through linked list while keeping track of the
>+    // predecessor slot that points to the current entry.
>+    auto masked = base_internal::HidePtr(ptr);
>+    for (int32_t* slot = &table_[Hash(ptr)]; *slot != -1; ) {
>+      int32_t index = *slot;
>+      Node* n = (*nodes_)[index];
>+      if (n->masked_ptr == masked) {
>+        *slot = n->next_hash;  // Remove n from linked list
>+        n->next_hash = -1;
>+        return index;
>+      }
>+      slot = &n->next_hash;
>+    }
>+    return -1;
>+  }
>+
>+ private:
>+  // Number of buckets in hash table for pointer lookups.
>+  static constexpr uint32_t kHashTableSize = 8171;  // should be prime
>+
>+  const Vec<Node*>* nodes_;
>+  std::array<int32_t, kHashTableSize> table_;
>+
>+  static uint32_t Hash(void* ptr) {
>+    return reinterpret_cast<uintptr_t>(ptr) % kHashTableSize;
>+  }
>+};
>+
>+}  // namespace
>+
>+struct GraphCycles::Rep {
>+  Vec<Node*> nodes_;
>+  Vec<int32_t> free_nodes_;  // Indices for unused entries in nodes_
>+  PointerMap ptrmap_;
>+
>+  // Temporary state.
>+  Vec<int32_t> deltaf_;  // Results of forward DFS
>+  Vec<int32_t> deltab_;  // Results of backward DFS
>+  Vec<int32_t> list_;    // All nodes to reprocess
>+  Vec<int32_t> merged_;  // Rank values to assign to list_ entries
>+  Vec<int32_t> stack_;   // Emulates recursion stack for depth-first searches
>+
>+  Rep() : ptrmap_(&nodes_) {}
>+};
>+
>+static Node* FindNode(GraphCycles::Rep* rep, GraphId id) {
>+  Node* n = rep->nodes_[NodeIndex(id)];
>+  return (n->version == NodeVersion(id)) ? n : nullptr;
>+}
>+
>+GraphCycles::GraphCycles() {
>+  InitArenaIfNecessary();
>+  rep_ = new (base_internal::LowLevelAlloc::AllocWithArena(sizeof(Rep), arena))
>+      Rep;
>+}
>+
>+GraphCycles::~GraphCycles() {
>+  for (auto* node : rep_->nodes_) {
>+    node->Node::~Node();
>+    base_internal::LowLevelAlloc::Free(node);
>+  }
>+  rep_->Rep::~Rep();
>+  base_internal::LowLevelAlloc::Free(rep_);
>+}
>+
>+bool GraphCycles::CheckInvariants() const {
>+  Rep* r = rep_;
>+  NodeSet ranks;  // Set of ranks seen so far.
>+  for (uint32_t x = 0; x < r->nodes_.size(); x++) {
>+    Node* nx = r->nodes_[x];
>+    void* ptr = base_internal::UnhidePtr<void>(nx->masked_ptr);
>+    if (ptr != nullptr && static_cast<uint32_t>(r->ptrmap_.Find(ptr)) != x) {
>+      ABSL_RAW_LOG(FATAL, "Did not find live node in hash table %u %p", x, ptr);
>+    }
>+    if (nx->visited) {
>+      ABSL_RAW_LOG(FATAL, "Did not clear visited marker on node %u", x);
>+    }
>+    if (!ranks.insert(nx->rank)) {
>+      ABSL_RAW_LOG(FATAL, "Duplicate occurrence of rank %d", nx->rank);
>+    }
>+    HASH_FOR_EACH(y, nx->out) {
>+      Node* ny = r->nodes_[y];
>+      if (nx->rank >= ny->rank) {
>+        ABSL_RAW_LOG(FATAL, "Edge %u->%d has bad rank assignment %d->%d", x, y,
>+                     nx->rank, ny->rank);
>+      }
>+    }
>+  }
>+  return true;
>+}
>+
>+GraphId GraphCycles::GetId(void* ptr) {
>+  int32_t i = rep_->ptrmap_.Find(ptr);
>+  if (i != -1) {
>+    return MakeId(i, rep_->nodes_[i]->version);
>+  } else if (rep_->free_nodes_.empty()) {
>+    Node* n =
>+        new (base_internal::LowLevelAlloc::AllocWithArena(sizeof(Node), arena))
>+            Node;
>+    n->version = 1;  // Avoid 0 since it is used by InvalidGraphId()
>+    n->visited = false;
>+    n->rank = rep_->nodes_.size();
>+    n->masked_ptr = base_internal::HidePtr(ptr);
>+    n->nstack = 0;
>+    n->priority = 0;
>+    rep_->nodes_.push_back(n);
>+    rep_->ptrmap_.Add(ptr, n->rank);
>+    return MakeId(n->rank, n->version);
>+  } else {
>+    // Preserve preceding rank since the set of ranks in use must be
>+    // a permutation of [0,rep_->nodes_.size()-1].
>+    int32_t r = rep_->free_nodes_.back();
>+    rep_->free_nodes_.pop_back();
>+    Node* n = rep_->nodes_[r];
>+    n->masked_ptr = base_internal::HidePtr(ptr);
>+    n->nstack = 0;
>+    n->priority = 0;
>+    rep_->ptrmap_.Add(ptr, r);
>+    return MakeId(r, n->version);
>+  }
>+}
>+
>+void GraphCycles::RemoveNode(void* ptr) {
>+  int32_t i = rep_->ptrmap_.Remove(ptr);
>+  if (i == -1) {
>+    return;
>+  }
>+  Node* x = rep_->nodes_[i];
>+  HASH_FOR_EACH(y, x->out) {
>+    rep_->nodes_[y]->in.erase(i);
>+  }
>+  HASH_FOR_EACH(y, x->in) {
>+    rep_->nodes_[y]->out.erase(i);
>+  }
>+  x->in.clear();
>+  x->out.clear();
>+  x->masked_ptr = base_internal::HidePtr<void>(nullptr);
>+  if (x->version == std::numeric_limits<uint32_t>::max()) {
>+    // Cannot use x any more
>+  } else {
>+    x->version++;  // Invalidates all copies of node.
>+    rep_->free_nodes_.push_back(i);
>+  }
>+}
>+
>+void* GraphCycles::Ptr(GraphId id) {
>+  Node* n = FindNode(rep_, id);
>+  return n == nullptr ? nullptr
>+                      : base_internal::UnhidePtr<void>(n->masked_ptr);
>+}
>+
>+bool GraphCycles::HasNode(GraphId node) {
>+  return FindNode(rep_, node) != nullptr;
>+}
>+
>+bool GraphCycles::HasEdge(GraphId x, GraphId y) const {
>+  Node* xn = FindNode(rep_, x);
>+  return xn && FindNode(rep_, y) && xn->out.contains(NodeIndex(y));
>+}
>+
>+void GraphCycles::RemoveEdge(GraphId x, GraphId y) {
>+  Node* xn = FindNode(rep_, x);
>+  Node* yn = FindNode(rep_, y);
>+  if (xn && yn) {
>+    xn->out.erase(NodeIndex(y));
>+    yn->in.erase(NodeIndex(x));
>+    // No need to update the rank assignment since a previous valid
>+    // rank assignment remains valid after an edge deletion.
>+  }
>+}
>+
>+static bool ForwardDFS(GraphCycles::Rep* r, int32_t n, int32_t upper_bound);
>+static void BackwardDFS(GraphCycles::Rep* r, int32_t n, int32_t lower_bound);
>+static void Reorder(GraphCycles::Rep* r);
>+static void Sort(const Vec<Node*>&, Vec<int32_t>* delta);
>+static void MoveToList(
>+    GraphCycles::Rep* r, Vec<int32_t>* src, Vec<int32_t>* dst);
>+
>+bool GraphCycles::InsertEdge(GraphId idx, GraphId idy) {
>+  Rep* r = rep_;
>+  const int32_t x = NodeIndex(idx);
>+  const int32_t y = NodeIndex(idy);
>+  Node* nx = FindNode(r, idx);
>+  Node* ny = FindNode(r, idy);
>+  if (nx == nullptr || ny == nullptr) return true;  // Expired ids
>+
>+  if (nx == ny) return false;  // Self edge
>+  if (!nx->out.insert(y)) {
>+    // Edge already exists.
>+    return true;
>+  }
>+
>+  ny->in.insert(x);
>+
>+  if (nx->rank <= ny->rank) {
>+    // New edge is consistent with existing rank assignment.
>+    return true;
>+  }
>+
>+  // Current rank assignments are incompatible with the new edge.  Recompute.
>+  // We only need to consider nodes that fall in the range [ny->rank,nx->rank].
>+  if (!ForwardDFS(r, y, nx->rank)) {
>+    // Found a cycle.  Undo the insertion and tell caller.
>+    nx->out.erase(y);
>+    ny->in.erase(x);
>+    // Since we do not call Reorder() on this path, clear any visited
>+    // markers left by ForwardDFS.
>+    for (const auto& d : r->deltaf_) {
>+      r->nodes_[d]->visited = false;
>+    }
>+    return false;
>+  }
>+  BackwardDFS(r, x, ny->rank);
>+  Reorder(r);
>+  return true;
>+}
>+
>+static bool ForwardDFS(GraphCycles::Rep* r, int32_t n, int32_t upper_bound) {
>+  // Avoid recursion since stack space might be limited.
>+  // We instead keep a stack of nodes to visit.
>+  r->deltaf_.clear();
>+  r->stack_.clear();
>+  r->stack_.push_back(n);
>+  while (!r->stack_.empty()) {
>+    n = r->stack_.back();
>+    r->stack_.pop_back();
>+    Node* nn = r->nodes_[n];
>+    if (nn->visited) continue;
>+
>+    nn->visited = true;
>+    r->deltaf_.push_back(n);
>+
>+    HASH_FOR_EACH(w, nn->out) {
>+      Node* nw = r->nodes_[w];
>+      if (nw->rank == upper_bound) {
>+        return false;  // Cycle
>+      }
>+      if (!nw->visited && nw->rank < upper_bound) {
>+        r->stack_.push_back(w);
>+      }
>+    }
>+  }
>+  return true;
>+}
>+
>+static void BackwardDFS(GraphCycles::Rep* r, int32_t n, int32_t lower_bound) {
>+  r->deltab_.clear();
>+  r->stack_.clear();
>+  r->stack_.push_back(n);
>+  while (!r->stack_.empty()) {
>+    n = r->stack_.back();
>+    r->stack_.pop_back();
>+    Node* nn = r->nodes_[n];
>+    if (nn->visited) continue;
>+
>+    nn->visited = true;
>+    r->deltab_.push_back(n);
>+
>+    HASH_FOR_EACH(w, nn->in) {
>+      Node* nw = r->nodes_[w];
>+      if (!nw->visited && lower_bound < nw->rank) {
>+        r->stack_.push_back(w);
>+      }
>+    }
>+  }
>+}
>+
>+static void Reorder(GraphCycles::Rep* r) {
>+  Sort(r->nodes_, &r->deltab_);
>+  Sort(r->nodes_, &r->deltaf_);
>+
>+  // Adds contents of delta lists to list_ (backwards deltas first).
>+  r->list_.clear();
>+  MoveToList(r, &r->deltab_, &r->list_);
>+  MoveToList(r, &r->deltaf_, &r->list_);
>+
>+  // Produce sorted list of all ranks that will be reassigned.
>+  r->merged_.resize(r->deltab_.size() + r->deltaf_.size());
>+  std::merge(r->deltab_.begin(), r->deltab_.end(),
>+             r->deltaf_.begin(), r->deltaf_.end(),
>+             r->merged_.begin());
>+
>+  // Assign the ranks in order to the collected list.
>+  for (uint32_t i = 0; i < r->list_.size(); i++) {
>+    r->nodes_[r->list_[i]]->rank = r->merged_[i];
>+  }
>+}
>+
>+static void Sort(const Vec<Node*>& nodes, Vec<int32_t>* delta) {
>+  struct ByRank {
>+    const Vec<Node*>* nodes;
>+    bool operator()(int32_t a, int32_t b) const {
>+      return (*nodes)[a]->rank < (*nodes)[b]->rank;
>+    }
>+  };
>+  ByRank cmp;
>+  cmp.nodes = &nodes;
>+  std::sort(delta->begin(), delta->end(), cmp);
>+}
>+
>+static void MoveToList(
>+    GraphCycles::Rep* r, Vec<int32_t>* src, Vec<int32_t>* dst) {
>+  for (auto& v : *src) {
>+    int32_t w = v;
>+    v = r->nodes_[w]->rank;         // Replace v entry with its rank
>+    r->nodes_[w]->visited = false;  // Prepare for future DFS calls
>+    dst->push_back(w);
>+  }
>+}
>+
>+int GraphCycles::FindPath(GraphId idx, GraphId idy, int max_path_len,
>+                          GraphId path[]) const {
>+  Rep* r = rep_;
>+  if (FindNode(r, idx) == nullptr || FindNode(r, idy) == nullptr) return 0;
>+  const int32_t x = NodeIndex(idx);
>+  const int32_t y = NodeIndex(idy);
>+
>+  // Forward depth first search starting at x until we hit y.
>+  // As we descend into a node, we push it onto the path.
>+  // As we leave a node, we remove it from the path.
>+  int path_len = 0;
>+
>+  NodeSet seen;
>+  r->stack_.clear();
>+  r->stack_.push_back(x);
>+  while (!r->stack_.empty()) {
>+    int32_t n = r->stack_.back();
>+    r->stack_.pop_back();
>+    if (n < 0) {
>+      // Marker to indicate that we are leaving a node
>+      path_len--;
>+      continue;
>+    }
>+
>+    if (path_len < max_path_len) {
>+      path[path_len] = MakeId(n, rep_->nodes_[n]->version);
>+    }
>+    path_len++;
>+    r->stack_.push_back(-1);  // Will remove tentative path entry
>+
>+    if (n == y) {
>+      return path_len;
>+    }
>+
>+    HASH_FOR_EACH(w, r->nodes_[n]->out) {
>+      if (seen.insert(w)) {
>+        r->stack_.push_back(w);
>+      }
>+    }
>+  }
>+
>+  return 0;
>+}
>+
>+bool GraphCycles::IsReachable(GraphId x, GraphId y) const {
>+  return FindPath(x, y, 0, nullptr) > 0;
>+}
>+
>+void GraphCycles::UpdateStackTrace(GraphId id, int priority,
>+                                   int (*get_stack_trace)(void** stack, int)) {
>+  Node* n = FindNode(rep_, id);
>+  if (n == nullptr || n->priority >= priority) {
>+    return;
>+  }
>+  n->nstack = (*get_stack_trace)(n->stack, ABSL_ARRAYSIZE(n->stack));
>+  n->priority = priority;
>+}
>+
>+int GraphCycles::GetStackTrace(GraphId id, void*** ptr) {
>+  Node* n = FindNode(rep_, id);
>+  if (n == nullptr) {
>+    *ptr = nullptr;
>+    return 0;
>+  } else {
>+    *ptr = n->stack;
>+    return n->nstack;
>+  }
>+}
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_LOW_LEVEL_ALLOC_MISSING
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2e6686a4c0628bc7e99f285c98bed1579a8ad06b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles.h
>@@ -0,0 +1,137 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_GRAPHCYCLES_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_GRAPHCYCLES_H_
>+
>+// GraphCycles detects the introduction of a cycle into a directed
>+// graph that is being built up incrementally.
>+//
>+// Nodes are identified by small integers.  It is not possible to
>+// record multiple edges with the same (source, destination) pair;
>+// requests to add an edge where one already exists are silently
>+// ignored.
>+//
>+// It is also not possible to introduce a cycle; an attempt to insert
>+// an edge that would introduce a cycle fails and returns false.
>+//
>+// GraphCycles uses no internal locking; calls into it should be
>+// serialized externally.
>+
>+// Performance considerations:
>+//   Works well on sparse graphs, poorly on dense graphs.
>+//   Extra information is maintained incrementally to detect cycles quickly.
>+//   InsertEdge() is very fast when the edge already exists, and reasonably fast
>+//   otherwise.
>+//   FindPath() is linear in the size of the graph.
>+// The current implemenation uses O(|V|+|E|) space.
>+
>+#include <cstdint>
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// Opaque identifier for a graph node.
>+struct GraphId {
>+  uint64_t handle;
>+
>+  bool operator==(const GraphId& x) const { return handle == x.handle; }
>+  bool operator!=(const GraphId& x) const { return handle != x.handle; }
>+};
>+
>+// Return an invalid graph id that will never be assigned by GraphCycles.
>+inline GraphId InvalidGraphId() {
>+  return GraphId{0};
>+}
>+
>+class GraphCycles {
>+ public:
>+  GraphCycles();
>+  ~GraphCycles();
>+
>+  // Return the id to use for ptr, assigning one if necessary.
>+  // Subsequent calls with the same ptr value will return the same id
>+  // until Remove().
>+  GraphId GetId(void* ptr);
>+
>+  // Remove "ptr" from the graph.  Its corresponding node and all
>+  // edges to and from it are removed.
>+  void RemoveNode(void* ptr);
>+
>+  // Return the pointer associated with id, or nullptr if id is not
>+  // currently in the graph.
>+  void* Ptr(GraphId id);
>+
>+  // Attempt to insert an edge from source_node to dest_node.  If the
>+  // edge would introduce a cycle, return false without making any
>+  // changes. Otherwise add the edge and return true.
>+  bool InsertEdge(GraphId source_node, GraphId dest_node);
>+
>+  // Remove any edge that exists from source_node to dest_node.
>+  void RemoveEdge(GraphId source_node, GraphId dest_node);
>+
>+  // Return whether node exists in the graph.
>+  bool HasNode(GraphId node);
>+
>+  // Return whether there is an edge directly from source_node to dest_node.
>+  bool HasEdge(GraphId source_node, GraphId dest_node) const;
>+
>+  // Return whether dest_node is reachable from source_node
>+  // by following edges.
>+  bool IsReachable(GraphId source_node, GraphId dest_node) const;
>+
>+  // Find a path from "source" to "dest".  If such a path exists,
>+  // place the nodes on the path in the array path[], and return
>+  // the number of nodes on the path.  If the path is longer than
>+  // max_path_len nodes, only the first max_path_len nodes are placed
>+  // in path[].  The client should compare the return value with
>+  // max_path_len" to see when this occurs.  If no path exists, return
>+  // 0.  Any valid path stored in path[] will start with "source" and
>+  // end with "dest".  There is no guarantee that the path is the
>+  // shortest, but no node will appear twice in the path, except the
>+  // source and destination node if they are identical; therefore, the
>+  // return value is at most one greater than the number of nodes in
>+  // the graph.
>+  int FindPath(GraphId source, GraphId dest, int max_path_len,
>+               GraphId path[]) const;
>+
>+  // Update the stack trace recorded for id with the current stack
>+  // trace if the last time it was updated had a smaller priority
>+  // than the priority passed on this call.
>+  //
>+  // *get_stack_trace is called to get the stack trace.
>+  void UpdateStackTrace(GraphId id, int priority,
>+                        int (*get_stack_trace)(void**, int));
>+
>+  // Set *ptr to the beginning of the array that holds the recorded
>+  // stack trace for id and return the depth of the stack trace.
>+  int GetStackTrace(GraphId id, void*** ptr);
>+
>+  // Check internal invariants. Crashes on failure, returns true on success.
>+  // Expensive: should only be called from graphcycles_test.cc.
>+  bool CheckInvariants() const;
>+
>+  // ----------------------------------------------------
>+  struct Rep;
>+ private:
>+  Rep *rep_;      // opaque representation
>+  GraphCycles(const GraphCycles&) = delete;
>+  GraphCycles& operator=(const GraphCycles&) = delete;
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+#endif
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a239c25c3a81d5b25ac697bbc9170b21f2201c7b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_benchmark.cc
>@@ -0,0 +1,44 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/internal/graphcycles.h"
>+
>+#include <algorithm>
>+#include <cstdint>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace {
>+
>+void BM_StressTest(benchmark::State& state) {
>+  const int num_nodes = state.range(0);
>+  while (state.KeepRunningBatch(num_nodes)) {
>+    absl::synchronization_internal::GraphCycles g;
>+    std::vector<absl::synchronization_internal::GraphId> nodes(num_nodes);
>+    for (int i = 0; i < num_nodes; i++) {
>+      nodes[i] = g.GetId(reinterpret_cast<void*>(static_cast<uintptr_t>(i)));
>+    }
>+    for (int i = 0; i < num_nodes; i++) {
>+      int end = std::min(num_nodes, i + 5);
>+      for (int j = i + 1; j < end; j++) {
>+        ABSL_RAW_CHECK(g.InsertEdge(nodes[i], nodes[j]), "");
>+      }
>+    }
>+  }
>+}
>+BENCHMARK(BM_StressTest)->Range(2048, 1048576);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9a85b39074d75847bd180c911538a39b325ac698
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/graphcycles_test.cc
>@@ -0,0 +1,462 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/internal/graphcycles.h"
>+
>+#include <map>
>+#include <random>
>+#include <unordered_set>
>+#include <utility>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/macros.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// We emulate a GraphCycles object with a node vector and an edge vector.
>+// We then compare the two implementations.
>+
>+using Nodes = std::vector<int>;
>+struct Edge {
>+  int from;
>+  int to;
>+};
>+using Edges = std::vector<Edge>;
>+using RandomEngine = std::mt19937_64;
>+
>+// Mapping from integer index to GraphId.
>+typedef std::map<int, GraphId> IdMap;
>+static GraphId Get(const IdMap& id, int num) {
>+  auto iter = id.find(num);
>+  return (iter == id.end()) ? InvalidGraphId() : iter->second;
>+}
>+
>+// Return whether "to" is reachable from "from".
>+static bool IsReachable(Edges *edges, int from, int to,
>+                        std::unordered_set<int> *seen) {
>+  seen->insert(from);     // we are investigating "from"; don't do it again
>+  if (from == to) return true;
>+  for (const auto &edge : *edges) {
>+    if (edge.from == from) {
>+      if (edge.to == to) {  // success via edge directly
>+        return true;
>+      } else if (seen->find(edge.to) == seen->end() &&  // success via edge
>+                 IsReachable(edges, edge.to, to, seen)) {
>+        return true;
>+      }
>+    }
>+  }
>+  return false;
>+}
>+
>+static void PrintEdges(Edges *edges) {
>+  ABSL_RAW_LOG(INFO, "EDGES (%zu)", edges->size());
>+  for (const auto &edge : *edges) {
>+    int a = edge.from;
>+    int b = edge.to;
>+    ABSL_RAW_LOG(INFO, "%d %d", a, b);
>+  }
>+  ABSL_RAW_LOG(INFO, "---");
>+}
>+
>+static void PrintGCEdges(Nodes *nodes, const IdMap &id, GraphCycles *gc) {
>+  ABSL_RAW_LOG(INFO, "GC EDGES");
>+  for (int a : *nodes) {
>+    for (int b : *nodes) {
>+      if (gc->HasEdge(Get(id, a), Get(id, b))) {
>+        ABSL_RAW_LOG(INFO, "%d %d", a, b);
>+      }
>+    }
>+  }
>+  ABSL_RAW_LOG(INFO, "---");
>+}
>+
>+static void PrintTransitiveClosure(Nodes *nodes, Edges *edges) {
>+  ABSL_RAW_LOG(INFO, "Transitive closure");
>+  for (int a : *nodes) {
>+    for (int b : *nodes) {
>+      std::unordered_set<int> seen;
>+      if (IsReachable(edges, a, b, &seen)) {
>+        ABSL_RAW_LOG(INFO, "%d %d", a, b);
>+      }
>+    }
>+  }
>+  ABSL_RAW_LOG(INFO, "---");
>+}
>+
>+static void PrintGCTransitiveClosure(Nodes *nodes, const IdMap &id,
>+                                     GraphCycles *gc) {
>+  ABSL_RAW_LOG(INFO, "GC Transitive closure");
>+  for (int a : *nodes) {
>+    for (int b : *nodes) {
>+      if (gc->IsReachable(Get(id, a), Get(id, b))) {
>+        ABSL_RAW_LOG(INFO, "%d %d", a, b);
>+      }
>+    }
>+  }
>+  ABSL_RAW_LOG(INFO, "---");
>+}
>+
>+static void CheckTransitiveClosure(Nodes *nodes, Edges *edges, const IdMap &id,
>+                                   GraphCycles *gc) {
>+  std::unordered_set<int> seen;
>+  for (const auto &a : *nodes) {
>+    for (const auto &b : *nodes) {
>+      seen.clear();
>+      bool gc_reachable = gc->IsReachable(Get(id, a), Get(id, b));
>+      bool reachable = IsReachable(edges, a, b, &seen);
>+      if (gc_reachable != reachable) {
>+        PrintEdges(edges);
>+        PrintGCEdges(nodes, id, gc);
>+        PrintTransitiveClosure(nodes, edges);
>+        PrintGCTransitiveClosure(nodes, id, gc);
>+        ABSL_RAW_LOG(FATAL, "gc_reachable %s reachable %s a %d b %d",
>+                     gc_reachable ? "true" : "false",
>+                     reachable ? "true" : "false", a, b);
>+      }
>+    }
>+  }
>+}
>+
>+static void CheckEdges(Nodes *nodes, Edges *edges, const IdMap &id,
>+                       GraphCycles *gc) {
>+  int count = 0;
>+  for (const auto &edge : *edges) {
>+    int a = edge.from;
>+    int b = edge.to;
>+    if (!gc->HasEdge(Get(id, a), Get(id, b))) {
>+      PrintEdges(edges);
>+      PrintGCEdges(nodes, id, gc);
>+      ABSL_RAW_LOG(FATAL, "!gc->HasEdge(%d, %d)", a, b);
>+    }
>+  }
>+  for (const auto &a : *nodes) {
>+    for (const auto &b : *nodes) {
>+      if (gc->HasEdge(Get(id, a), Get(id, b))) {
>+        count++;
>+      }
>+    }
>+  }
>+  if (count != edges->size()) {
>+    PrintEdges(edges);
>+    PrintGCEdges(nodes, id, gc);
>+    ABSL_RAW_LOG(FATAL, "edges->size() %zu  count %d", edges->size(), count);
>+  }
>+}
>+
>+static void CheckInvariants(const GraphCycles &gc) {
>+  if (ABSL_PREDICT_FALSE(!gc.CheckInvariants()))
>+    ABSL_RAW_LOG(FATAL, "CheckInvariants");
>+}
>+
>+// Returns the index of a randomly chosen node in *nodes.
>+// Requires *nodes be non-empty.
>+static int RandomNode(RandomEngine* rng, Nodes *nodes) {
>+  std::uniform_int_distribution<int> uniform(0, nodes->size()-1);
>+  return uniform(*rng);
>+}
>+
>+// Returns the index of a randomly chosen edge in *edges.
>+// Requires *edges be non-empty.
>+static int RandomEdge(RandomEngine* rng, Edges *edges) {
>+  std::uniform_int_distribution<int> uniform(0, edges->size()-1);
>+  return uniform(*rng);
>+}
>+
>+// Returns the index of edge (from, to) in *edges or -1 if it is not in *edges.
>+static int EdgeIndex(Edges *edges, int from, int to) {
>+  int i = 0;
>+  while (i != edges->size() &&
>+         ((*edges)[i].from != from || (*edges)[i].to != to)) {
>+    i++;
>+  }
>+  return i == edges->size()? -1 : i;
>+}
>+
>+TEST(GraphCycles, RandomizedTest) {
>+  int next_node = 0;
>+  Nodes nodes;
>+  Edges edges;   // from, to
>+  IdMap id;
>+  GraphCycles graph_cycles;
>+  static const int kMaxNodes = 7;  // use <= 7 nodes to keep test short
>+  static const int kDataOffset = 17;  // an offset to the node-specific data
>+  int n = 100000;
>+  int op = 0;
>+  RandomEngine rng(testing::UnitTest::GetInstance()->random_seed());
>+  std::uniform_int_distribution<int> uniform(0, 5);
>+
>+  auto ptr = [](intptr_t i) {
>+    return reinterpret_cast<void*>(i + kDataOffset);
>+  };
>+
>+  for (int iter = 0; iter != n; iter++) {
>+    for (const auto &node : nodes) {
>+      ASSERT_EQ(graph_cycles.Ptr(Get(id, node)), ptr(node)) << " node " << node;
>+    }
>+    CheckEdges(&nodes, &edges, id, &graph_cycles);
>+    CheckTransitiveClosure(&nodes, &edges, id, &graph_cycles);
>+    op = uniform(rng);
>+    switch (op) {
>+    case 0:     // Add a node
>+      if (nodes.size() < kMaxNodes) {
>+        int new_node = next_node++;
>+        GraphId new_gnode = graph_cycles.GetId(ptr(new_node));
>+        ASSERT_NE(new_gnode, InvalidGraphId());
>+        id[new_node] = new_gnode;
>+        ASSERT_EQ(ptr(new_node), graph_cycles.Ptr(new_gnode));
>+        nodes.push_back(new_node);
>+      }
>+      break;
>+
>+    case 1:    // Remove a node
>+      if (nodes.size() > 0) {
>+        int node_index = RandomNode(&rng, &nodes);
>+        int node = nodes[node_index];
>+        nodes[node_index] = nodes.back();
>+        nodes.pop_back();
>+        graph_cycles.RemoveNode(ptr(node));
>+        ASSERT_EQ(graph_cycles.Ptr(Get(id, node)), nullptr);
>+        id.erase(node);
>+        int i = 0;
>+        while (i != edges.size()) {
>+          if (edges[i].from == node || edges[i].to == node) {
>+            edges[i] = edges.back();
>+            edges.pop_back();
>+          } else {
>+            i++;
>+          }
>+        }
>+      }
>+      break;
>+
>+    case 2:   // Add an edge
>+      if (nodes.size() > 0) {
>+        int from = RandomNode(&rng, &nodes);
>+        int to = RandomNode(&rng, &nodes);
>+        if (EdgeIndex(&edges, nodes[from], nodes[to]) == -1) {
>+          if (graph_cycles.InsertEdge(id[nodes[from]], id[nodes[to]])) {
>+            Edge new_edge;
>+            new_edge.from = nodes[from];
>+            new_edge.to = nodes[to];
>+            edges.push_back(new_edge);
>+          } else {
>+            std::unordered_set<int> seen;
>+            ASSERT_TRUE(IsReachable(&edges, nodes[to], nodes[from], &seen))
>+                << "Edge " << nodes[to] << "->" << nodes[from];
>+          }
>+        }
>+      }
>+      break;
>+
>+    case 3:    // Remove an edge
>+      if (edges.size() > 0) {
>+        int i = RandomEdge(&rng, &edges);
>+        int from = edges[i].from;
>+        int to = edges[i].to;
>+        ASSERT_EQ(i, EdgeIndex(&edges, from, to));
>+        edges[i] = edges.back();
>+        edges.pop_back();
>+        ASSERT_EQ(-1, EdgeIndex(&edges, from, to));
>+        graph_cycles.RemoveEdge(id[from], id[to]);
>+      }
>+      break;
>+
>+    case 4:   // Check a path
>+      if (nodes.size() > 0) {
>+        int from = RandomNode(&rng, &nodes);
>+        int to = RandomNode(&rng, &nodes);
>+        GraphId path[2*kMaxNodes];
>+        int path_len = graph_cycles.FindPath(id[nodes[from]], id[nodes[to]],
>+                                             ABSL_ARRAYSIZE(path), path);
>+        std::unordered_set<int> seen;
>+        bool reachable = IsReachable(&edges, nodes[from], nodes[to], &seen);
>+        bool gc_reachable =
>+            graph_cycles.IsReachable(Get(id, nodes[from]), Get(id, nodes[to]));
>+        ASSERT_EQ(path_len != 0, reachable);
>+        ASSERT_EQ(path_len != 0, gc_reachable);
>+        // In the following line, we add one because a node can appear
>+        // twice, if the path is from that node to itself, perhaps via
>+        // every other node.
>+        ASSERT_LE(path_len, kMaxNodes + 1);
>+        if (path_len != 0) {
>+          ASSERT_EQ(id[nodes[from]], path[0]);
>+          ASSERT_EQ(id[nodes[to]], path[path_len-1]);
>+          for (int i = 1; i < path_len; i++) {
>+            ASSERT_TRUE(graph_cycles.HasEdge(path[i-1], path[i]));
>+          }
>+        }
>+      }
>+      break;
>+
>+    case 5:  // Check invariants
>+      CheckInvariants(graph_cycles);
>+      break;
>+
>+    default:
>+      ABSL_RAW_LOG(FATAL, "op %d", op);
>+    }
>+
>+    // Very rarely, test graph expansion by adding then removing many nodes.
>+    std::bernoulli_distribution one_in_1024(1.0 / 1024);
>+    if (one_in_1024(rng)) {
>+      CheckEdges(&nodes, &edges, id, &graph_cycles);
>+      CheckTransitiveClosure(&nodes, &edges, id, &graph_cycles);
>+      for (int i = 0; i != 256; i++) {
>+        int new_node = next_node++;
>+        GraphId new_gnode = graph_cycles.GetId(ptr(new_node));
>+        ASSERT_NE(InvalidGraphId(), new_gnode);
>+        id[new_node] = new_gnode;
>+        ASSERT_EQ(ptr(new_node), graph_cycles.Ptr(new_gnode));
>+        for (const auto &node : nodes) {
>+          ASSERT_NE(node, new_node);
>+        }
>+        nodes.push_back(new_node);
>+      }
>+      for (int i = 0; i != 256; i++) {
>+        ASSERT_GT(nodes.size(), 0);
>+        int node_index = RandomNode(&rng, &nodes);
>+        int node = nodes[node_index];
>+        nodes[node_index] = nodes.back();
>+        nodes.pop_back();
>+        graph_cycles.RemoveNode(ptr(node));
>+        id.erase(node);
>+        int j = 0;
>+        while (j != edges.size()) {
>+          if (edges[j].from == node || edges[j].to == node) {
>+            edges[j] = edges.back();
>+            edges.pop_back();
>+          } else {
>+            j++;
>+          }
>+        }
>+      }
>+      CheckInvariants(graph_cycles);
>+    }
>+  }
>+}
>+
>+class GraphCyclesTest : public ::testing::Test {
>+ public:
>+  IdMap id_;
>+  GraphCycles g_;
>+
>+  static void* Ptr(int i) {
>+    return reinterpret_cast<void*>(static_cast<uintptr_t>(i));
>+  }
>+
>+  static int Num(void* ptr) {
>+    return static_cast<int>(reinterpret_cast<uintptr_t>(ptr));
>+  }
>+
>+  // Test relies on ith NewNode() call returning Node numbered i
>+  GraphCyclesTest() {
>+    for (int i = 0; i < 100; i++) {
>+      id_[i] = g_.GetId(Ptr(i));
>+    }
>+    CheckInvariants(g_);
>+  }
>+
>+  bool AddEdge(int x, int y) {
>+    return g_.InsertEdge(Get(id_, x), Get(id_, y));
>+  }
>+
>+  void AddMultiples() {
>+    // For every node x > 0: add edge to 2*x, 3*x
>+    for (int x = 1; x < 25; x++) {
>+      EXPECT_TRUE(AddEdge(x, 2*x)) << x;
>+      EXPECT_TRUE(AddEdge(x, 3*x)) << x;
>+    }
>+    CheckInvariants(g_);
>+  }
>+
>+  std::string Path(int x, int y) {
>+    GraphId path[5];
>+    int np = g_.FindPath(Get(id_, x), Get(id_, y), ABSL_ARRAYSIZE(path), path);
>+    std::string result;
>+    for (int i = 0; i < np; i++) {
>+      if (i >= ABSL_ARRAYSIZE(path)) {
>+        result += " ...";
>+        break;
>+      }
>+      if (!result.empty()) result.push_back(' ');
>+      char buf[20];
>+      snprintf(buf, sizeof(buf), "%d", Num(g_.Ptr(path[i])));
>+      result += buf;
>+    }
>+    return result;
>+  }
>+};
>+
>+TEST_F(GraphCyclesTest, NoCycle) {
>+  AddMultiples();
>+  CheckInvariants(g_);
>+}
>+
>+TEST_F(GraphCyclesTest, SimpleCycle) {
>+  AddMultiples();
>+  EXPECT_FALSE(AddEdge(8, 4));
>+  EXPECT_EQ("4 8", Path(4, 8));
>+  CheckInvariants(g_);
>+}
>+
>+TEST_F(GraphCyclesTest, IndirectCycle) {
>+  AddMultiples();
>+  EXPECT_TRUE(AddEdge(16, 9));
>+  CheckInvariants(g_);
>+  EXPECT_FALSE(AddEdge(9, 2));
>+  EXPECT_EQ("2 4 8 16 9", Path(2, 9));
>+  CheckInvariants(g_);
>+}
>+
>+TEST_F(GraphCyclesTest, LongPath) {
>+  ASSERT_TRUE(AddEdge(2, 4));
>+  ASSERT_TRUE(AddEdge(4, 6));
>+  ASSERT_TRUE(AddEdge(6, 8));
>+  ASSERT_TRUE(AddEdge(8, 10));
>+  ASSERT_TRUE(AddEdge(10, 12));
>+  ASSERT_FALSE(AddEdge(12, 2));
>+  EXPECT_EQ("2 4 6 8 10 ...", Path(2, 12));
>+  CheckInvariants(g_);
>+}
>+
>+TEST_F(GraphCyclesTest, RemoveNode) {
>+  ASSERT_TRUE(AddEdge(1, 2));
>+  ASSERT_TRUE(AddEdge(2, 3));
>+  ASSERT_TRUE(AddEdge(3, 4));
>+  ASSERT_TRUE(AddEdge(4, 5));
>+  g_.RemoveNode(g_.Ptr(id_[3]));
>+  id_.erase(3);
>+  ASSERT_TRUE(AddEdge(5, 1));
>+}
>+
>+TEST_F(GraphCyclesTest, ManyEdges) {
>+  const int N = 50;
>+  for (int i = 0; i < N; i++) {
>+    for (int j = 1; j < N; j++) {
>+      ASSERT_TRUE(AddEdge(i, i+j));
>+    }
>+  }
>+  CheckInvariants(g_);
>+  ASSERT_TRUE(AddEdge(2*N-1, 0));
>+  CheckInvariants(g_);
>+  ASSERT_FALSE(AddEdge(10, 9));
>+  CheckInvariants(g_);
>+}
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/kernel_timeout.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/kernel_timeout.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..bb7080004c72da51cb2314cfc8ed69529d3347bd
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/kernel_timeout.h
>@@ -0,0 +1,151 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// An optional absolute timeout, with nanosecond granularity,
>+// compatible with absl::Time. Suitable for in-register
>+// parameter-passing (e.g. syscalls.)
>+// Constructible from a absl::Time (for a timeout to be respected) or {}
>+// (for "no timeout".)
>+// This is a private low-level API for use by a handful of low-level
>+// components that are friends of this class. Higher-level components
>+// should build APIs based on absl::Time and absl::Duration.
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_KERNEL_TIMEOUT_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_KERNEL_TIMEOUT_H_
>+
>+#include <time.h>
>+#include <algorithm>
>+#include <limits>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/time/clock.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+class Futex;
>+class Waiter;
>+
>+class KernelTimeout {
>+ public:
>+  // A timeout that should expire at <t>.  Any value, in the full
>+  // InfinitePast() to InfiniteFuture() range, is valid here and will be
>+  // respected.
>+  explicit KernelTimeout(absl::Time t) : ns_(MakeNs(t)) {}
>+  // No timeout.
>+  KernelTimeout() : ns_(0) {}
>+
>+  // A more explicit factory for those who prefer it.  Equivalent to {}.
>+  static KernelTimeout Never() { return {}; }
>+
>+  // We explicitly do not support other custom formats: timespec, int64_t nanos.
>+  // Unify on this and absl::Time, please.
>+  bool has_timeout() const { return ns_ != 0; }
>+
>+ private:
>+  // internal rep, not user visible: ns after unix epoch.
>+  // zero = no timeout.
>+  // Negative we treat as an unlikely (and certainly expired!) but valid
>+  // timeout.
>+  int64_t ns_;
>+
>+  static int64_t MakeNs(absl::Time t) {
>+    // optimization--InfiniteFuture is common "no timeout" value
>+    // and cheaper to compare than convert.
>+    if (t == absl::InfiniteFuture()) return 0;
>+    int64_t x = ToUnixNanos(t);
>+
>+    // A timeout that lands exactly on the epoch (x=0) needs to be respected,
>+    // so we alter it unnoticably to 1.  Negative timeouts are in
>+    // theory supported, but handled poorly by the kernel (long
>+    // delays) so push them forward too; since all such times have
>+    // already passed, it's indistinguishable.
>+    if (x <= 0) x = 1;
>+    // A time larger than what can be represented to the kernel is treated
>+    // as no timeout.
>+    if (x == std::numeric_limits<int64_t>::max()) x = 0;
>+    return x;
>+  }
>+
>+  // Convert to parameter for sem_timedwait/futex/similar.  Only for approved
>+  // users.  Do not call if !has_timeout.
>+  struct timespec MakeAbsTimespec() {
>+    int64_t n = ns_;
>+    static const int64_t kNanosPerSecond = 1000 * 1000 * 1000;
>+    if (n == 0) {
>+      ABSL_RAW_LOG(
>+          ERROR,
>+          "Tried to create a timespec from a non-timeout; never do this.");
>+      // But we'll try to continue sanely.  no-timeout ~= saturated timeout.
>+      n = std::numeric_limits<int64_t>::max();
>+    }
>+
>+    // Kernel APIs validate timespecs as being at or after the epoch,
>+    // despite the kernel time type being signed.  However, no one can
>+    // tell the difference between a timeout at or before the epoch (since
>+    // all such timeouts have expired!)
>+    if (n < 0) n = 0;
>+
>+    struct timespec abstime;
>+    int64_t seconds = std::min(n / kNanosPerSecond,
>+                             int64_t{std::numeric_limits<time_t>::max()});
>+    abstime.tv_sec = static_cast<time_t>(seconds);
>+    abstime.tv_nsec =
>+        static_cast<decltype(abstime.tv_nsec)>(n % kNanosPerSecond);
>+    return abstime;
>+  }
>+
>+#ifdef _WIN32
>+  // Converts to milliseconds from now, or INFINITE when
>+  // !has_timeout(). For use by SleepConditionVariableSRW on
>+  // Windows. Callers should recognize that the return value is a
>+  // relative duration (it should be recomputed by calling this method
>+  // in the case of a spurious wakeup).
>+  // This header file may be included transitively by public header files,
>+  // so we define our own DWORD and INFINITE instead of getting them from
>+  // <intsafe.h> and <WinBase.h>.
>+  typedef unsigned long DWord;  // NOLINT
>+  DWord InMillisecondsFromNow() const {
>+    constexpr DWord kInfinite = std::numeric_limits<DWord>::max();
>+    if (!has_timeout()) {
>+      return kInfinite;
>+    }
>+    // The use of absl::Now() to convert from absolute time to
>+    // relative time means that absl::Now() cannot use anything that
>+    // depends on KernelTimeout (for example, Mutex) on Windows.
>+    int64_t now = ToUnixNanos(absl::Now());
>+    if (ns_ >= now) {
>+      // Round up so that Now() + ms_from_now >= ns_.
>+      constexpr uint64_t max_nanos =
>+          std::numeric_limits<int64_t>::max() - 999999u;
>+      uint64_t ms_from_now =
>+          (std::min<uint64_t>(max_nanos, ns_ - now) + 999999u) / 1000000u;
>+      if (ms_from_now > kInfinite) {
>+        return kInfinite;
>+      }
>+      return static_cast<DWord>(ms_from_now);
>+    }
>+    return 0;
>+  }
>+#endif
>+
>+  friend class Futex;
>+  friend class Waiter;
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+#endif  // ABSL_SYNCHRONIZATION_INTERNAL_KERNEL_TIMEOUT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..45c60326dba03303342b57a352508dccc13dd0aa
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.cc
>@@ -0,0 +1,318 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Implementation of a small subset of Mutex and CondVar functionality
>+// for platforms where the production implementation hasn't been fully
>+// ported yet.
>+
>+#include "absl/synchronization/mutex.h"
>+
>+#if defined(_WIN32)
>+#include <chrono>  // NOLINT(build/c++11)
>+#else
>+#include <sys/time.h>
>+#include <time.h>
>+#endif
>+
>+#include <algorithm>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+namespace {
>+
>+// Return the current time plus the timeout.
>+absl::Time DeadlineFromTimeout(absl::Duration timeout) {
>+  return absl::Now() + timeout;
>+}
>+
>+// Limit the deadline to a positive, 32-bit time_t value to accommodate
>+// implementation restrictions.  This also deals with InfinitePast and
>+// InfiniteFuture.
>+absl::Time LimitedDeadline(absl::Time deadline) {
>+  deadline = std::max(absl::FromTimeT(0), deadline);
>+  deadline = std::min(deadline, absl::FromTimeT(0x7fffffff));
>+  return deadline;
>+}
>+
>+}  // namespace
>+
>+#if defined(_WIN32)
>+
>+MutexImpl::MutexImpl() {}
>+
>+MutexImpl::~MutexImpl() {
>+  if (locked_) {
>+    std_mutex_.unlock();
>+  }
>+}
>+
>+void MutexImpl::Lock() {
>+  std_mutex_.lock();
>+  locked_ = true;
>+}
>+
>+bool MutexImpl::TryLock() {
>+  bool locked = std_mutex_.try_lock();
>+  if (locked) locked_ = true;
>+  return locked;
>+}
>+
>+void MutexImpl::Unlock() {
>+  locked_ = false;
>+  released_.SignalAll();
>+  std_mutex_.unlock();
>+}
>+
>+CondVarImpl::CondVarImpl() {}
>+
>+CondVarImpl::~CondVarImpl() {}
>+
>+void CondVarImpl::Signal() { std_cv_.notify_one(); }
>+
>+void CondVarImpl::SignalAll() { std_cv_.notify_all(); }
>+
>+void CondVarImpl::Wait(MutexImpl* mu) {
>+  mu->released_.SignalAll();
>+  std_cv_.wait(mu->std_mutex_);
>+}
>+
>+bool CondVarImpl::WaitWithDeadline(MutexImpl* mu, absl::Time deadline) {
>+  mu->released_.SignalAll();
>+  time_t when = ToTimeT(deadline);
>+  int64_t nanos = ToInt64Nanoseconds(deadline - absl::FromTimeT(when));
>+  std::chrono::system_clock::time_point deadline_tp =
>+      std::chrono::system_clock::from_time_t(when) +
>+      std::chrono::duration_cast<std::chrono::system_clock::duration>(
>+          std::chrono::nanoseconds(nanos));
>+  auto deadline_since_epoch =
>+      std::chrono::duration_cast<std::chrono::duration<double>>(
>+          deadline_tp - std::chrono::system_clock::from_time_t(0));
>+  return std_cv_.wait_until(mu->std_mutex_, deadline_tp) ==
>+         std::cv_status::timeout;
>+}
>+
>+#else  // ! _WIN32
>+
>+MutexImpl::MutexImpl() {
>+  ABSL_RAW_CHECK(pthread_mutex_init(&pthread_mutex_, nullptr) == 0,
>+                 "pthread error");
>+}
>+
>+MutexImpl::~MutexImpl() {
>+  if (locked_) {
>+    ABSL_RAW_CHECK(pthread_mutex_unlock(&pthread_mutex_) == 0, "pthread error");
>+  }
>+  ABSL_RAW_CHECK(pthread_mutex_destroy(&pthread_mutex_) == 0, "pthread error");
>+}
>+
>+void MutexImpl::Lock() {
>+  ABSL_RAW_CHECK(pthread_mutex_lock(&pthread_mutex_) == 0, "pthread error");
>+  locked_ = true;
>+}
>+
>+bool MutexImpl::TryLock() {
>+  bool locked = (0 == pthread_mutex_trylock(&pthread_mutex_));
>+  if (locked) locked_ = true;
>+  return locked;
>+}
>+
>+void MutexImpl::Unlock() {
>+  locked_ = false;
>+  released_.SignalAll();
>+  ABSL_RAW_CHECK(pthread_mutex_unlock(&pthread_mutex_) == 0, "pthread error");
>+}
>+
>+CondVarImpl::CondVarImpl() {
>+  ABSL_RAW_CHECK(pthread_cond_init(&pthread_cv_, nullptr) == 0,
>+                 "pthread error");
>+}
>+
>+CondVarImpl::~CondVarImpl() {
>+  ABSL_RAW_CHECK(pthread_cond_destroy(&pthread_cv_) == 0, "pthread error");
>+}
>+
>+void CondVarImpl::Signal() {
>+  ABSL_RAW_CHECK(pthread_cond_signal(&pthread_cv_) == 0, "pthread error");
>+}
>+
>+void CondVarImpl::SignalAll() {
>+  ABSL_RAW_CHECK(pthread_cond_broadcast(&pthread_cv_) == 0, "pthread error");
>+}
>+
>+void CondVarImpl::Wait(MutexImpl* mu) {
>+  mu->released_.SignalAll();
>+  ABSL_RAW_CHECK(pthread_cond_wait(&pthread_cv_, &mu->pthread_mutex_) == 0,
>+                 "pthread error");
>+}
>+
>+bool CondVarImpl::WaitWithDeadline(MutexImpl* mu, absl::Time deadline) {
>+  mu->released_.SignalAll();
>+  struct timespec ts = ToTimespec(deadline);
>+  int rc = pthread_cond_timedwait(&pthread_cv_, &mu->pthread_mutex_, &ts);
>+  if (rc == ETIMEDOUT) return true;
>+  ABSL_RAW_CHECK(rc == 0, "pthread error");
>+  return false;
>+}
>+
>+#endif  // ! _WIN32
>+
>+void MutexImpl::Await(const Condition& cond) {
>+  if (cond.Eval()) return;
>+  released_.SignalAll();
>+  do {
>+    released_.Wait(this);
>+  } while (!cond.Eval());
>+}
>+
>+bool MutexImpl::AwaitWithDeadline(const Condition& cond, absl::Time deadline) {
>+  if (cond.Eval()) return true;
>+  released_.SignalAll();
>+  while (true) {
>+    if (released_.WaitWithDeadline(this, deadline)) return false;
>+    if (cond.Eval()) return true;
>+  }
>+}
>+
>+}  // namespace synchronization_internal
>+
>+Mutex::Mutex() {}
>+
>+Mutex::~Mutex() {}
>+
>+void Mutex::Lock() { impl()->Lock(); }
>+
>+void Mutex::Unlock() { impl()->Unlock(); }
>+
>+bool Mutex::TryLock() { return impl()->TryLock(); }
>+
>+void Mutex::ReaderLock() { Lock(); }
>+
>+void Mutex::ReaderUnlock() { Unlock(); }
>+
>+void Mutex::Await(const Condition& cond) { impl()->Await(cond); }
>+
>+void Mutex::LockWhen(const Condition& cond) {
>+  Lock();
>+  Await(cond);
>+}
>+
>+bool Mutex::AwaitWithDeadline(const Condition& cond, absl::Time deadline) {
>+  return impl()->AwaitWithDeadline(
>+      cond, synchronization_internal::LimitedDeadline(deadline));
>+}
>+
>+bool Mutex::AwaitWithTimeout(const Condition& cond, absl::Duration timeout) {
>+  return AwaitWithDeadline(
>+      cond, synchronization_internal::DeadlineFromTimeout(timeout));
>+}
>+
>+bool Mutex::LockWhenWithDeadline(const Condition& cond, absl::Time deadline) {
>+  Lock();
>+  return AwaitWithDeadline(cond, deadline);
>+}
>+
>+bool Mutex::LockWhenWithTimeout(const Condition& cond, absl::Duration timeout) {
>+  return LockWhenWithDeadline(
>+      cond, synchronization_internal::DeadlineFromTimeout(timeout));
>+}
>+
>+void Mutex::ReaderLockWhen(const Condition& cond) {
>+  ReaderLock();
>+  Await(cond);
>+}
>+
>+bool Mutex::ReaderLockWhenWithTimeout(const Condition& cond,
>+                                      absl::Duration timeout) {
>+  return LockWhenWithTimeout(cond, timeout);
>+}
>+bool Mutex::ReaderLockWhenWithDeadline(const Condition& cond,
>+                                       absl::Time deadline) {
>+  return LockWhenWithDeadline(cond, deadline);
>+}
>+
>+void Mutex::EnableDebugLog(const char*) {}
>+void Mutex::EnableInvariantDebugging(void (*)(void*), void*) {}
>+void Mutex::ForgetDeadlockInfo() {}
>+void Mutex::AssertHeld() const {}
>+void Mutex::AssertReaderHeld() const {}
>+void Mutex::AssertNotHeld() const {}
>+
>+CondVar::CondVar() {}
>+
>+CondVar::~CondVar() {}
>+
>+void CondVar::Signal() { impl()->Signal(); }
>+
>+void CondVar::SignalAll() { impl()->SignalAll(); }
>+
>+void CondVar::Wait(Mutex* mu) { return impl()->Wait(mu->impl()); }
>+
>+bool CondVar::WaitWithDeadline(Mutex* mu, absl::Time deadline) {
>+  return impl()->WaitWithDeadline(
>+      mu->impl(), synchronization_internal::LimitedDeadline(deadline));
>+}
>+
>+bool CondVar::WaitWithTimeout(Mutex* mu, absl::Duration timeout) {
>+  return WaitWithDeadline(mu, absl::Now() + timeout);
>+}
>+
>+void CondVar::EnableDebugLog(const char*) {}
>+
>+#ifdef THREAD_SANITIZER
>+extern "C" void __tsan_read1(void *addr);
>+#else
>+#define __tsan_read1(addr)  // do nothing if TSan not enabled
>+#endif
>+
>+// A function that just returns its argument, dereferenced
>+static bool Dereference(void *arg) {
>+  // ThreadSanitizer does not instrument this file for memory accesses.
>+  // This function dereferences a user variable that can participate
>+  // in a data race, so we need to manually tell TSan about this memory access.
>+  __tsan_read1(arg);
>+  return *(static_cast<bool *>(arg));
>+}
>+
>+Condition::Condition() {}   // null constructor, used for kTrue only
>+const Condition Condition::kTrue;
>+
>+Condition::Condition(bool (*func)(void *), void *arg)
>+    : eval_(&CallVoidPtrFunction),
>+      function_(func),
>+      method_(nullptr),
>+      arg_(arg) {}
>+
>+bool Condition::CallVoidPtrFunction(const Condition *c) {
>+  return (*c->function_)(c->arg_);
>+}
>+
>+Condition::Condition(const bool *cond)
>+    : eval_(CallVoidPtrFunction),
>+      function_(Dereference),
>+      method_(nullptr),
>+      // const_cast is safe since Dereference does not modify arg
>+      arg_(const_cast<bool *>(cond)) {}
>+
>+bool Condition::Eval() const {
>+  // eval_ == null for kTrue
>+  return (this->eval_ == nullptr) || (*this->eval_)(this);
>+}
>+
>+void RegisterSymbolizer(bool (*)(const void*, char*, int)) {}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..0aab3d1314e68824abc39178efaa215ed4207f04
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/mutex_nonprod.inc
>@@ -0,0 +1,256 @@
>+// Do not include.  This is an implementation detail of base/mutex.h.
>+//
>+// Declares three classes:
>+//
>+// base::internal::MutexImpl - implementation helper for Mutex
>+// base::internal::CondVarImpl - implementation helper for CondVar
>+// base::internal::SynchronizationStorage<T> - implementation helper for
>+//                                             Mutex, CondVar
>+
>+#include <type_traits>
>+
>+#if defined(_WIN32)
>+#include <condition_variable>
>+#include <mutex>
>+#else
>+#include <pthread.h>
>+#endif
>+
>+#include "absl/base/call_once.h"
>+#include "absl/time/time.h"
>+
>+// Declare that Mutex::ReaderLock is actually Lock().  Intended primarily
>+// for tests, and even then as a last resort.
>+#ifdef ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE
>+#error ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE cannot be directly set
>+#else
>+#define ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE 1
>+#endif
>+
>+// Declare that Mutex::EnableInvariantDebugging is not implemented.
>+// Intended primarily for tests, and even then as a last resort.
>+#ifdef ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED
>+#error ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED cannot be directly set
>+#else
>+#define ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED 1
>+#endif
>+
>+namespace absl {
>+class Condition;
>+
>+namespace synchronization_internal {
>+
>+class MutexImpl;
>+
>+// Do not use this implementation detail of CondVar. Provides most of the
>+// implementation, but should not be placed directly in static storage
>+// because it will not linker initialize properly. See
>+// SynchronizationStorage<T> below for what we mean by linker
>+// initialization.
>+class CondVarImpl {
>+ public:
>+  CondVarImpl();
>+  CondVarImpl(const CondVarImpl&) = delete;
>+  CondVarImpl& operator=(const CondVarImpl&) = delete;
>+  ~CondVarImpl();
>+
>+  void Signal();
>+  void SignalAll();
>+  void Wait(MutexImpl* mutex);
>+  bool WaitWithDeadline(MutexImpl* mutex, absl::Time deadline);
>+
>+ private:
>+#if defined(_WIN32)
>+  std::condition_variable_any std_cv_;
>+#else
>+  pthread_cond_t pthread_cv_;
>+#endif
>+};
>+
>+// Do not use this implementation detail of Mutex. Provides most of the
>+// implementation, but should not be placed directly in static storage
>+// because it will not linker initialize properly. See
>+// SynchronizationStorage<T> below for what we mean by linker
>+// initialization.
>+class MutexImpl {
>+ public:
>+  MutexImpl();
>+  MutexImpl(const MutexImpl&) = delete;
>+  MutexImpl& operator=(const MutexImpl&) = delete;
>+  ~MutexImpl();
>+
>+  void Lock();
>+  bool TryLock();
>+  void Unlock();
>+  void Await(const Condition& cond);
>+  bool AwaitWithDeadline(const Condition& cond, absl::Time deadline);
>+
>+ private:
>+  friend class CondVarImpl;
>+
>+#if defined(_WIN32)
>+  std::mutex std_mutex_;
>+#else
>+  pthread_mutex_t pthread_mutex_;
>+#endif
>+
>+  // True if the underlying mutex is locked.  If the destructor is entered
>+  // while locked_, the underlying mutex is unlocked.  Mutex supports
>+  // destruction while locked, but the same is undefined behavior for both
>+  // pthread_mutex_t and std::mutex.
>+  bool locked_ = false;
>+
>+  // Signaled before releasing the lock, in support of Await.
>+  CondVarImpl released_;
>+};
>+
>+// Do not use this implementation detail of CondVar and Mutex.  A storage
>+// space for T that supports a LinkerInitialized constructor. T must
>+// have a default constructor, which is called by the first call to
>+// get(). T's destructor is never called if the LinkerInitialized
>+// constructor is called.
>+//
>+// Objects constructed with the default constructor are constructed and
>+// destructed like any other object, and should never be allocated in
>+// static storage.
>+//
>+// Objects constructed with the LinkerInitialized constructor should
>+// always be in static storage. For such objects, calls to get() are always
>+// valid, except from signal handlers.
>+//
>+// Note that this implementation relies on undefined language behavior that
>+// are known to hold for the set of supported compilers. An analysis
>+// follows.
>+//
>+// From the C++11 standard:
>+//
>+// [basic.life] says an object has non-trivial initialization if it is of
>+// class type and it is initialized by a constructor other than a trivial
>+// default constructor.  (the LinkerInitialized constructor is
>+// non-trivial)
>+//
>+// [basic.life] says the lifetime of an object with a non-trivial
>+// constructor begins when the call to the constructor is complete.
>+//
>+// [basic.life] says the lifetime of an object with non-trivial destructor
>+// ends when the call to the destructor begins.
>+//
>+// [basic.life] p5 specifies undefined behavior when accessing non-static
>+// members of an instance outside its
>+// lifetime. (SynchronizationStorage::get() access non-static members)
>+//
>+// So, LinkerInitialized object of SynchronizationStorage uses a
>+// non-trivial constructor, which is called at some point during dynamic
>+// initialization, and is therefore subject to order of dynamic
>+// initialization bugs, where get() is called before the object's
>+// constructor is, resulting in undefined behavior.
>+//
>+// Similarly, a LinkerInitialized SynchronizationStorage object has a
>+// non-trivial destructor, and so its lifetime ends at some point during
>+// destruction of objects with static storage duration [basic.start.term]
>+// p4. There is a window where other exit code could call get() after this
>+// occurs, resulting in undefined behavior.
>+//
>+// Combined, these statements imply that LinkerInitialized instances
>+// of SynchronizationStorage<T> rely on undefined behavior.
>+//
>+// However, in practice, the implementation works on all supported
>+// compilers. Specifically, we rely on:
>+//
>+// a) zero-initialization being sufficient to initialize
>+// LinkerInitialized instances for the purposes of calling
>+// get(), regardless of when the constructor is called. This is
>+// because the is_dynamic_ boolean is correctly zero-initialized to
>+// false.
>+//
>+// b) the LinkerInitialized constructor is a NOP, and immaterial to
>+// even to concurrent calls to get().
>+//
>+// c) the destructor being a NOP for LinkerInitialized objects
>+// (guaranteed by a check for !is_dynamic_), and so any concurrent and
>+// subsequent calls to get() functioning as if the destructor were not
>+// called, by virtue of the instances' storage remaining valid after the
>+// destructor runs.
>+//
>+// d) That a-c apply transitively when SynchronizationStorage<T> is the
>+// only member of a class allocated in static storage.
>+//
>+// Nothing in the language standard guarantees that a-d hold.  In practice,
>+// these hold in all supported compilers.
>+//
>+// Future direction:
>+//
>+// Ideally, we would simply use std::mutex or a similar class, which when
>+// allocated statically would support use immediately after static
>+// initialization up until static storage is reclaimed (i.e. the properties
>+// we require of all "linker initialized" instances).
>+//
>+// Regarding construction in static storage, std::mutex is required to
>+// provide a constexpr default constructor [thread.mutex.class], which
>+// ensures the instance's lifetime begins with static initialization
>+// [basic.start.init], and so is immune to any problems caused by the order
>+// of dynamic initialization. However, as of this writing Microsoft's
>+// Visual Studio does not provide a constexpr constructor for std::mutex.
>+// See
>+// https://blogs.msdn.microsoft.com/vcblog/2015/06/02/constexpr-complete-for-vs-2015-rtm-c11-compiler-c17-stl/
>+//
>+// Regarding destruction of instances in static storage, [basic.life] does
>+// say an object ends when storage in which the occupies is released, in
>+// the case of non-trivial destructor. However, std::mutex is not specified
>+// to have a trivial destructor.
>+//
>+// So, we would need a class with a constexpr default constructor and a
>+// trivial destructor. Today, we can achieve neither desired property using
>+// std::mutex directly.
>+template <typename T>
>+class SynchronizationStorage {
>+ public:
>+  // Instances allocated on the heap or on the stack should use the default
>+  // constructor.
>+  SynchronizationStorage()
>+      : is_dynamic_(true), once_() {}
>+
>+  // Instances allocated in static storage (not on the heap, not on the
>+  // stack) should use this constructor.
>+  explicit SynchronizationStorage(base_internal::LinkerInitialized) {}
>+
>+  SynchronizationStorage(SynchronizationStorage&) = delete;
>+  SynchronizationStorage& operator=(SynchronizationStorage&) = delete;
>+
>+  ~SynchronizationStorage() {
>+    if (is_dynamic_) {
>+      get()->~T();
>+    }
>+  }
>+
>+  // Retrieve the object in storage. This is fast and thread safe, but does
>+  // incur the cost of absl::call_once().
>+  //
>+  // For instances in static storage constructed with the
>+  // LinkerInitialized constructor, may be called at any time without
>+  // regard for order of dynamic initialization or destruction of objects
>+  // in static storage. See the class comment for caveats.
>+  T* get() {
>+    absl::call_once(once_, SynchronizationStorage::Construct, this);
>+    return reinterpret_cast<T*>(&space_);
>+  }
>+
>+ private:
>+  static void Construct(SynchronizationStorage<T>* self) {
>+    new (&self->space_) T();
>+  }
>+
>+  // When true, T's destructor is run when this is destructed.
>+  //
>+  // The LinkerInitialized constructor assumes this value will be set
>+  // false by static initialization.
>+  bool is_dynamic_;
>+
>+  absl::once_flag once_;
>+
>+  // An aligned space for T.
>+  typename std::aligned_storage<sizeof(T), alignof(T)>::type space_;
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..caa2baf64bd3110f0ba8857cf25b22d17b596478
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.cc
>@@ -0,0 +1,99 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file is a no-op if the required LowLevelAlloc support is missing.
>+#include "absl/base/internal/low_level_alloc.h"
>+#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
>+
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+
>+#include <atomic>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/synchronization/internal/waiter.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+void PerThreadSem::SetThreadBlockedCounter(std::atomic<int> *counter) {
>+  base_internal::ThreadIdentity *identity;
>+  identity = GetOrCreateCurrentThreadIdentity();
>+  identity->blocked_count_ptr = counter;
>+}
>+
>+std::atomic<int> *PerThreadSem::GetThreadBlockedCounter() {
>+  base_internal::ThreadIdentity *identity;
>+  identity = GetOrCreateCurrentThreadIdentity();
>+  return identity->blocked_count_ptr;
>+}
>+
>+void PerThreadSem::Init(base_internal::ThreadIdentity *identity) {
>+  Waiter::GetWaiter(identity)->Init();
>+  identity->ticker.store(0, std::memory_order_relaxed);
>+  identity->wait_start.store(0, std::memory_order_relaxed);
>+  identity->is_idle.store(false, std::memory_order_relaxed);
>+}
>+
>+void PerThreadSem::Tick(base_internal::ThreadIdentity *identity) {
>+  const int ticker =
>+      identity->ticker.fetch_add(1, std::memory_order_relaxed) + 1;
>+  const int wait_start = identity->wait_start.load(std::memory_order_relaxed);
>+  const bool is_idle = identity->is_idle.load(std::memory_order_relaxed);
>+  if (wait_start && (ticker - wait_start > Waiter::kIdlePeriods) && !is_idle) {
>+    // Wakeup the waiting thread since it is time for it to become idle.
>+    Waiter::GetWaiter(identity)->Poke();
>+  }
>+}
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+extern "C" {
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalPerThreadSemPost(
>+    absl::base_internal::ThreadIdentity *identity) {
>+  absl::synchronization_internal::Waiter::GetWaiter(identity)->Post();
>+}
>+
>+ABSL_ATTRIBUTE_WEAK bool AbslInternalPerThreadSemWait(
>+    absl::synchronization_internal::KernelTimeout t) {
>+  bool timeout = false;
>+  absl::base_internal::ThreadIdentity *identity;
>+  identity = absl::synchronization_internal::GetOrCreateCurrentThreadIdentity();
>+
>+  // Ensure wait_start != 0.
>+  int ticker = identity->ticker.load(std::memory_order_relaxed);
>+  identity->wait_start.store(ticker ? ticker : 1, std::memory_order_relaxed);
>+  identity->is_idle.store(false, std::memory_order_relaxed);
>+
>+  if (identity->blocked_count_ptr != nullptr) {
>+    // Increment count of threads blocked in a given thread pool.
>+    identity->blocked_count_ptr->fetch_add(1, std::memory_order_relaxed);
>+  }
>+
>+  timeout =
>+      !absl::synchronization_internal::Waiter::GetWaiter(identity)->Wait(t);
>+
>+  if (identity->blocked_count_ptr != nullptr) {
>+    identity->blocked_count_ptr->fetch_sub(1, std::memory_order_relaxed);
>+  }
>+  identity->is_idle.store(false, std::memory_order_relaxed);
>+  identity->wait_start.store(0, std::memory_order_relaxed);
>+  return !timeout;
>+}
>+
>+}  // extern "C"
>+
>+#endif  // ABSL_LOW_LEVEL_ALLOC_MISSING
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..678b69e487a57fa5e06ff9a8cc2ba67e4a0faed2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.h
>@@ -0,0 +1,107 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+// PerThreadSem is a low-level synchronization primitive controlling the
>+// runnability of a single thread, used internally by Mutex and CondVar.
>+//
>+// This is NOT a general-purpose synchronization mechanism, and should not be
>+// used directly by applications.  Applications should use Mutex and CondVar.
>+//
>+// The semantics of PerThreadSem are the same as that of a counting semaphore.
>+// Each thread maintains an abstract "count" value associated with its identity.
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_PER_THREAD_SEM_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_PER_THREAD_SEM_H_
>+
>+#include <atomic>
>+
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/synchronization/internal/create_thread_identity.h"
>+#include "absl/synchronization/internal/kernel_timeout.h"
>+
>+namespace absl {
>+
>+class Mutex;
>+
>+namespace synchronization_internal {
>+
>+class PerThreadSem {
>+ public:
>+  PerThreadSem() = delete;
>+  PerThreadSem(const PerThreadSem&) = delete;
>+  PerThreadSem& operator=(const PerThreadSem&) = delete;
>+
>+  // Routine invoked periodically (once a second) by a background thread.
>+  // Has no effect on user-visible state.
>+  static void Tick(base_internal::ThreadIdentity* identity);
>+
>+  // ---------------------------------------------------------------------------
>+  // Routines used by autosizing threadpools to detect when threads are
>+  // blocked.  Each thread has a counter pointer, initially zero.  If non-zero,
>+  // the implementation atomically increments the counter when it blocks on a
>+  // semaphore, a decrements it again when it wakes.  This allows a threadpool
>+  // to keep track of how many of its threads are blocked.
>+  // SetThreadBlockedCounter() should be used only by threadpool
>+  // implementations.  GetThreadBlockedCounter() should be used by modules that
>+  // block threads; if the pointer returned is non-zero, the location should be
>+  // incremented before the thread blocks, and decremented after it wakes.
>+  static void SetThreadBlockedCounter(std::atomic<int> *counter);
>+  static std::atomic<int> *GetThreadBlockedCounter();
>+
>+ private:
>+  // Create the PerThreadSem associated with "identity".  Initializes count=0.
>+  // REQUIRES: May only be called by ThreadIdentity.
>+  static void Init(base_internal::ThreadIdentity* identity);
>+
>+  // Increments "identity"'s count.
>+  static inline void Post(base_internal::ThreadIdentity* identity);
>+
>+  // Waits until either our count > 0 or t has expired.
>+  // If count > 0, decrements count and returns true.  Otherwise returns false.
>+  // !t.has_timeout() => Wait(t) will return true.
>+  static inline bool Wait(KernelTimeout t);
>+
>+  // White-listed callers.
>+  friend class PerThreadSemTest;
>+  friend class absl::Mutex;
>+  friend absl::base_internal::ThreadIdentity* CreateThreadIdentity();
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+// In some build configurations we pass --detect-odr-violations to the
>+// gold linker.  This causes it to flag weak symbol overrides as ODR
>+// violations.  Because ODR only applies to C++ and not C,
>+// --detect-odr-violations ignores symbols not mangled with C++ names.
>+// By changing our extension points to be extern "C", we dodge this
>+// check.
>+extern "C" {
>+void AbslInternalPerThreadSemPost(
>+    absl::base_internal::ThreadIdentity* identity);
>+bool AbslInternalPerThreadSemWait(
>+    absl::synchronization_internal::KernelTimeout t);
>+}  // extern "C"
>+
>+void absl::synchronization_internal::PerThreadSem::Post(
>+    absl::base_internal::ThreadIdentity* identity) {
>+  AbslInternalPerThreadSemPost(identity);
>+}
>+
>+bool absl::synchronization_internal::PerThreadSem::Wait(
>+    absl::synchronization_internal::KernelTimeout t) {
>+  return AbslInternalPerThreadSemWait(t);
>+}
>+#endif  // ABSL_SYNCHRONIZATION_INTERNAL_PER_THREAD_SEM_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2b52ea76ab0e942601eb50f160fe845b9b0685cf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem_test.cc
>@@ -0,0 +1,172 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+
>+#include <atomic>
>+#include <condition_variable>  // NOLINT(build/c++11)
>+#include <functional>
>+#include <limits>
>+#include <mutex>               // NOLINT(build/c++11)
>+#include <string>
>+#include <thread>              // NOLINT(build/c++11)
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/cycleclock.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/strings/str_cat.h"
>+#include "absl/time/clock.h"
>+#include "absl/time/time.h"
>+
>+// In this test we explicitly avoid the use of synchronization
>+// primitives which might use PerThreadSem, most notably absl::Mutex.
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+class SimpleSemaphore {
>+ public:
>+  SimpleSemaphore() : count_(0) {}
>+
>+  // Decrements (locks) the semaphore. If the semaphore's value is
>+  // greater than zero, then the decrement proceeds, and the function
>+  // returns, immediately. If the semaphore currently has the value
>+  // zero, then the call blocks until it becomes possible to perform
>+  // the decrement.
>+  void Wait() {
>+    std::unique_lock<std::mutex> lock(mu_);
>+    cv_.wait(lock, [this]() { return count_ > 0; });
>+    --count_;
>+    cv_.notify_one();
>+  }
>+
>+  // Increments (unlocks) the semaphore. If the semaphore's value
>+  // consequently becomes greater than zero, then another thread
>+  // blocked Wait() call will be woken up and proceed to lock the
>+  // semaphore.
>+  void Post() {
>+    std::lock_guard<std::mutex> lock(mu_);
>+    ++count_;
>+    cv_.notify_one();
>+  }
>+
>+ private:
>+  std::mutex mu_;
>+  std::condition_variable cv_;
>+  int count_;
>+};
>+
>+struct ThreadData {
>+  int num_iterations;                 // Number of replies to send.
>+  SimpleSemaphore identity2_written;  // Posted by thread writing identity2.
>+  base_internal::ThreadIdentity *identity1;  // First Post()-er.
>+  base_internal::ThreadIdentity *identity2;  // First Wait()-er.
>+  KernelTimeout timeout;
>+};
>+
>+// Need friendship with PerThreadSem.
>+class PerThreadSemTest : public testing::Test {
>+ public:
>+  static void TimingThread(ThreadData* t) {
>+    t->identity2 = GetOrCreateCurrentThreadIdentity();
>+    t->identity2_written.Post();
>+    while (t->num_iterations--) {
>+      Wait(t->timeout);
>+      Post(t->identity1);
>+    }
>+  }
>+
>+  void TestTiming(const char *msg, bool timeout) {
>+    static const int kNumIterations = 100;
>+    ThreadData t;
>+    t.num_iterations = kNumIterations;
>+    t.timeout = timeout ?
>+        KernelTimeout(absl::Now() + absl::Seconds(10000))  // far in the future
>+        : KernelTimeout::Never();
>+    t.identity1 = GetOrCreateCurrentThreadIdentity();
>+
>+    // We can't use the Thread class here because it uses the Mutex
>+    // class which will invoke PerThreadSem, so we use std::thread instead.
>+    std::thread partner_thread(std::bind(TimingThread, &t));
>+
>+    // Wait for our partner thread to register their identity.
>+    t.identity2_written.Wait();
>+
>+    int64_t min_cycles = std::numeric_limits<int64_t>::max();
>+    int64_t total_cycles = 0;
>+    for (int i = 0; i < kNumIterations; ++i) {
>+      absl::SleepFor(absl::Milliseconds(20));
>+      int64_t cycles = base_internal::CycleClock::Now();
>+      Post(t.identity2);
>+      Wait(t.timeout);
>+      cycles = base_internal::CycleClock::Now() - cycles;
>+      min_cycles = std::min(min_cycles, cycles);
>+      total_cycles += cycles;
>+    }
>+    std::string out =
>+        StrCat(msg, "min cycle count=", min_cycles, " avg cycle count=",
>+               absl::SixDigits(static_cast<double>(total_cycles) /
>+                               kNumIterations));
>+    printf("%s\n", out.c_str());
>+
>+    partner_thread.join();
>+  }
>+
>+ protected:
>+  static void Post(base_internal::ThreadIdentity *id) {
>+    PerThreadSem::Post(id);
>+  }
>+  static bool Wait(KernelTimeout t) {
>+    return PerThreadSem::Wait(t);
>+  }
>+
>+  // convenience overload
>+  static bool Wait(absl::Time t) {
>+    return Wait(KernelTimeout(t));
>+  }
>+
>+  static void Tick(base_internal::ThreadIdentity *identity) {
>+    PerThreadSem::Tick(identity);
>+  }
>+};
>+
>+namespace {
>+
>+TEST_F(PerThreadSemTest, WithoutTimeout) {
>+  PerThreadSemTest::TestTiming("Without timeout: ", false);
>+}
>+
>+TEST_F(PerThreadSemTest, WithTimeout) {
>+  PerThreadSemTest::TestTiming("With timeout:    ", true);
>+}
>+
>+TEST_F(PerThreadSemTest, Timeouts) {
>+  absl::Time timeout = absl::Now() + absl::Milliseconds(50);
>+  EXPECT_FALSE(Wait(timeout));
>+  EXPECT_LE(timeout, absl::Now());
>+
>+  absl::Time negative_timeout = absl::UnixEpoch() - absl::Milliseconds(100);
>+  EXPECT_FALSE(Wait(negative_timeout));
>+  EXPECT_LE(negative_timeout, absl::Now());  // trivially true :)
>+
>+  Post(GetOrCreateCurrentThreadIdentity());
>+  // The wait here has an expired timeout, but we have a wake to consume,
>+  // so this should succeed
>+  EXPECT_TRUE(Wait(negative_timeout));
>+}
>+
>+}  // namespace
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/thread_pool.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/thread_pool.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..846404277a03e78e58f3344edf690aeaef89c235
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/thread_pool.h
>@@ -0,0 +1,90 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_THREAD_POOL_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_THREAD_POOL_H_
>+
>+#include <cassert>
>+#include <functional>
>+#include <queue>
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// A simple ThreadPool implementation for tests.
>+class ThreadPool {
>+ public:
>+  explicit ThreadPool(int num_threads) {
>+    for (int i = 0; i < num_threads; ++i) {
>+      threads_.push_back(std::thread(&ThreadPool::WorkLoop, this));
>+    }
>+  }
>+
>+  ThreadPool(const ThreadPool &) = delete;
>+  ThreadPool &operator=(const ThreadPool &) = delete;
>+
>+  ~ThreadPool() {
>+    {
>+      absl::MutexLock l(&mu_);
>+      for (int i = 0; i < threads_.size(); ++i) {
>+        queue_.push(nullptr);  // Shutdown signal.
>+      }
>+    }
>+    for (auto &t : threads_) {
>+      t.join();
>+    }
>+  }
>+
>+  // Schedule a function to be run on a ThreadPool thread immediately.
>+  void Schedule(std::function<void()> func) {
>+    assert(func != nullptr);
>+    absl::MutexLock l(&mu_);
>+    queue_.push(std::move(func));
>+  }
>+
>+ private:
>+  bool WorkAvailable() const EXCLUSIVE_LOCKS_REQUIRED(mu_) {
>+    return !queue_.empty();
>+  }
>+
>+  void WorkLoop() {
>+    while (true) {
>+      std::function<void()> func;
>+      {
>+        absl::MutexLock l(&mu_);
>+        mu_.Await(absl::Condition(this, &ThreadPool::WorkAvailable));
>+        func = std::move(queue_.front());
>+        queue_.pop();
>+      }
>+      if (func == nullptr) {  // Shutdown signal.
>+        break;
>+      }
>+      func();
>+    }
>+  }
>+
>+  absl::Mutex mu_;
>+  std::queue<std::function<void()>> queue_ GUARDED_BY(mu_);
>+  std::vector<std::thread> threads_;
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_SYNCHRONIZATION_INTERNAL_THREAD_POOL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..768c52085cd3967dd7f3d66b0c3111f9057130c7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.cc
>@@ -0,0 +1,412 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/internal/waiter.h"
>+
>+#include "absl/base/config.h"
>+
>+#ifdef _WIN32
>+#include <windows.h>
>+#else
>+#include <pthread.h>
>+#include <sys/time.h>
>+#include <unistd.h>
>+#endif
>+
>+#ifdef __linux__
>+#include <linux/futex.h>
>+#include <sys/syscall.h>
>+#endif
>+
>+#ifdef ABSL_HAVE_SEMAPHORE_H
>+#include <semaphore.h>
>+#endif
>+
>+#include <errno.h>
>+#include <stdio.h>
>+#include <time.h>
>+
>+#include <atomic>
>+#include <cassert>
>+#include <cstdint>
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/base/optimization.h"
>+#include "absl/synchronization/internal/kernel_timeout.h"
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+static void MaybeBecomeIdle() {
>+  base_internal::ThreadIdentity *identity =
>+      base_internal::CurrentThreadIdentityIfPresent();
>+  assert(identity != nullptr);
>+  const bool is_idle = identity->is_idle.load(std::memory_order_relaxed);
>+  const int ticker = identity->ticker.load(std::memory_order_relaxed);
>+  const int wait_start = identity->wait_start.load(std::memory_order_relaxed);
>+  if (!is_idle && ticker - wait_start > Waiter::kIdlePeriods) {
>+    identity->is_idle.store(true, std::memory_order_relaxed);
>+  }
>+}
>+
>+#if ABSL_WAITER_MODE == ABSL_WAITER_MODE_FUTEX
>+
>+// Some Android headers are missing these definitions even though they
>+// support these futex operations.
>+#ifdef __BIONIC__
>+#ifndef SYS_futex
>+#define SYS_futex __NR_futex
>+#endif
>+#ifndef FUTEX_WAIT_BITSET
>+#define FUTEX_WAIT_BITSET 9
>+#endif
>+#ifndef FUTEX_PRIVATE_FLAG
>+#define FUTEX_PRIVATE_FLAG 128
>+#endif
>+#ifndef FUTEX_CLOCK_REALTIME
>+#define FUTEX_CLOCK_REALTIME 256
>+#endif
>+#ifndef FUTEX_BITSET_MATCH_ANY
>+#define FUTEX_BITSET_MATCH_ANY 0xFFFFFFFF
>+#endif
>+#endif
>+class Futex {
>+ public:
>+  static int WaitUntil(std::atomic<int32_t> *v, int32_t val,
>+                       KernelTimeout t) {
>+    int err = 0;
>+    if (t.has_timeout()) {
>+      // https://locklessinc.com/articles/futex_cheat_sheet/
>+      // Unlike FUTEX_WAIT, FUTEX_WAIT_BITSET uses absolute time.
>+      struct timespec abs_timeout = t.MakeAbsTimespec();
>+      // Atomically check that the futex value is still 0, and if it
>+      // is, sleep until abs_timeout or until woken by FUTEX_WAKE.
>+      err = syscall(
>+          SYS_futex, reinterpret_cast<int32_t *>(v),
>+          FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME, val,
>+          &abs_timeout, nullptr, FUTEX_BITSET_MATCH_ANY);
>+    } else {
>+      // Atomically check that the futex value is still 0, and if it
>+      // is, sleep until woken by FUTEX_WAKE.
>+      err = syscall(SYS_futex, reinterpret_cast<int32_t *>(v),
>+                    FUTEX_WAIT | FUTEX_PRIVATE_FLAG, val, nullptr);
>+    }
>+    if (err != 0) {
>+      err = -errno;
>+    }
>+    return err;
>+  }
>+
>+  static int Wake(std::atomic<int32_t> *v, int32_t count) {
>+    int err = syscall(SYS_futex, reinterpret_cast<int32_t *>(v),
>+                      FUTEX_WAKE | FUTEX_PRIVATE_FLAG, count);
>+    if (ABSL_PREDICT_FALSE(err < 0)) {
>+      err = -errno;
>+    }
>+    return err;
>+  }
>+};
>+
>+void Waiter::Init() {
>+  futex_.store(0, std::memory_order_relaxed);
>+}
>+
>+bool Waiter::Wait(KernelTimeout t) {
>+  // Loop until we can atomically decrement futex from a positive
>+  // value, waiting on a futex while we believe it is zero.
>+  while (true) {
>+    int32_t x = futex_.load(std::memory_order_relaxed);
>+    if (x != 0) {
>+      if (!futex_.compare_exchange_weak(x, x - 1,
>+                                        std::memory_order_acquire,
>+                                        std::memory_order_relaxed)) {
>+        continue;  // Raced with someone, retry.
>+      }
>+      return true;  // Consumed a wakeup, we are done.
>+    }
>+
>+    const int err = Futex::WaitUntil(&futex_, 0, t);
>+    if (err != 0) {
>+      if (err == -EINTR || err == -EWOULDBLOCK) {
>+        // Do nothing, the loop will retry.
>+      } else if (err == -ETIMEDOUT) {
>+        return false;
>+      } else {
>+        ABSL_RAW_LOG(FATAL, "Futex operation failed with error %d\n", err);
>+      }
>+    }
>+
>+    MaybeBecomeIdle();
>+  }
>+}
>+
>+void Waiter::Post() {
>+  if (futex_.fetch_add(1, std::memory_order_release) == 0) {
>+    // We incremented from 0, need to wake a potential waker.
>+    Poke();
>+  }
>+}
>+
>+void Waiter::Poke() {
>+  // Wake one thread waiting on the futex.
>+  const int err = Futex::Wake(&futex_, 1);
>+  if (ABSL_PREDICT_FALSE(err < 0)) {
>+    ABSL_RAW_LOG(FATAL, "Futex operation failed with error %d\n", err);
>+  }
>+}
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_CONDVAR
>+
>+class PthreadMutexHolder {
>+ public:
>+  explicit PthreadMutexHolder(pthread_mutex_t *mu) : mu_(mu) {
>+    const int err = pthread_mutex_lock(mu_);
>+    if (err != 0) {
>+      ABSL_RAW_LOG(FATAL, "pthread_mutex_lock failed: %d", err);
>+    }
>+  }
>+
>+  PthreadMutexHolder(const PthreadMutexHolder &rhs) = delete;
>+  PthreadMutexHolder &operator=(const PthreadMutexHolder &rhs) = delete;
>+
>+  ~PthreadMutexHolder() {
>+    const int err = pthread_mutex_unlock(mu_);
>+    if (err != 0) {
>+      ABSL_RAW_LOG(FATAL, "pthread_mutex_unlock failed: %d", err);
>+    }
>+  }
>+
>+ private:
>+  pthread_mutex_t *mu_;
>+};
>+
>+void Waiter::Init() {
>+  const int err = pthread_mutex_init(&mu_, 0);
>+  if (err != 0) {
>+    ABSL_RAW_LOG(FATAL, "pthread_mutex_init failed: %d", err);
>+  }
>+
>+  const int err2 = pthread_cond_init(&cv_, 0);
>+  if (err2 != 0) {
>+    ABSL_RAW_LOG(FATAL, "pthread_cond_init failed: %d", err2);
>+  }
>+
>+  waiter_count_.store(0, std::memory_order_relaxed);
>+  wakeup_count_.store(0, std::memory_order_relaxed);
>+}
>+
>+bool Waiter::Wait(KernelTimeout t) {
>+  struct timespec abs_timeout;
>+  if (t.has_timeout()) {
>+    abs_timeout = t.MakeAbsTimespec();
>+  }
>+
>+  PthreadMutexHolder h(&mu_);
>+  waiter_count_.fetch_add(1, std::memory_order_relaxed);
>+  // Loop until we find a wakeup to consume or timeout.
>+  while (true) {
>+    int x = wakeup_count_.load(std::memory_order_relaxed);
>+    if (x != 0) {
>+      if (!wakeup_count_.compare_exchange_weak(x, x - 1,
>+                                               std::memory_order_acquire,
>+                                               std::memory_order_relaxed)) {
>+        continue;  // Raced with someone, retry.
>+      }
>+      // Successfully consumed a wakeup, we're done.
>+      waiter_count_.fetch_sub(1, std::memory_order_relaxed);
>+      return true;
>+    }
>+
>+    // No wakeups available, time to wait.
>+    if (!t.has_timeout()) {
>+      const int err = pthread_cond_wait(&cv_, &mu_);
>+      if (err != 0) {
>+        ABSL_RAW_LOG(FATAL, "pthread_cond_wait failed: %d", err);
>+      }
>+    } else {
>+      const int err = pthread_cond_timedwait(&cv_, &mu_, &abs_timeout);
>+      if (err == ETIMEDOUT) {
>+        waiter_count_.fetch_sub(1, std::memory_order_relaxed);
>+        return false;
>+      }
>+      if (err != 0) {
>+        ABSL_RAW_LOG(FATAL, "pthread_cond_wait failed: %d", err);
>+      }
>+    }
>+    MaybeBecomeIdle();
>+  }
>+}
>+
>+void Waiter::Post() {
>+  wakeup_count_.fetch_add(1, std::memory_order_release);
>+  Poke();
>+}
>+
>+void Waiter::Poke() {
>+  if (waiter_count_.load(std::memory_order_relaxed) == 0) {
>+    return;
>+  }
>+  // Potentially a waker. Take the lock and check again.
>+  PthreadMutexHolder h(&mu_);
>+  if (waiter_count_.load(std::memory_order_relaxed) == 0) {
>+    return;
>+  }
>+  const int err = pthread_cond_signal(&cv_);
>+  if (err != 0) {
>+    ABSL_RAW_LOG(FATAL, "pthread_cond_signal failed: %d", err);
>+  }
>+}
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_SEM
>+
>+void Waiter::Init() {
>+  if (sem_init(&sem_, 0, 0) != 0) {
>+    ABSL_RAW_LOG(FATAL, "sem_init failed with errno %d\n", errno);
>+  }
>+  wakeups_.store(0, std::memory_order_relaxed);
>+}
>+
>+bool Waiter::Wait(KernelTimeout t) {
>+  struct timespec abs_timeout;
>+  if (t.has_timeout()) {
>+    abs_timeout = t.MakeAbsTimespec();
>+  }
>+
>+  // Loop until we timeout or consume a wakeup.
>+  while (true) {
>+    int x = wakeups_.load(std::memory_order_relaxed);
>+    if (x != 0) {
>+      if (!wakeups_.compare_exchange_weak(x, x - 1,
>+                                          std::memory_order_acquire,
>+                                          std::memory_order_relaxed)) {
>+        continue;  // Raced with someone, retry.
>+      }
>+      // Successfully consumed a wakeup, we're done.
>+      return true;
>+    }
>+
>+    // Nothing to consume, wait (looping on EINTR).
>+    while (true) {
>+      if (!t.has_timeout()) {
>+        if (sem_wait(&sem_) == 0) break;
>+        if (errno == EINTR) continue;
>+        ABSL_RAW_LOG(FATAL, "sem_wait failed: %d", errno);
>+      } else {
>+        if (sem_timedwait(&sem_, &abs_timeout) == 0) break;
>+        if (errno == EINTR) continue;
>+        if (errno == ETIMEDOUT) return false;
>+        ABSL_RAW_LOG(FATAL, "sem_timedwait failed: %d", errno);
>+      }
>+    }
>+    MaybeBecomeIdle();
>+  }
>+}
>+
>+void Waiter::Post() {
>+  wakeups_.fetch_add(1, std::memory_order_release);  // Post a wakeup.
>+  Poke();
>+}
>+
>+void Waiter::Poke() {
>+  if (sem_post(&sem_) != 0) {  // Wake any semaphore waiter.
>+    ABSL_RAW_LOG(FATAL, "sem_post failed with errno %d\n", errno);
>+  }
>+}
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_WIN32
>+
>+class LockHolder {
>+ public:
>+  explicit LockHolder(SRWLOCK* mu) : mu_(mu) {
>+    AcquireSRWLockExclusive(mu_);
>+  }
>+
>+  LockHolder(const LockHolder&) = delete;
>+  LockHolder& operator=(const LockHolder&) = delete;
>+
>+  ~LockHolder() {
>+    ReleaseSRWLockExclusive(mu_);
>+  }
>+
>+ private:
>+  SRWLOCK* mu_;
>+};
>+
>+void Waiter::Init() {
>+  InitializeSRWLock(&mu_);
>+  InitializeConditionVariable(&cv_);
>+  waiter_count_.store(0, std::memory_order_relaxed);
>+  wakeup_count_.store(0, std::memory_order_relaxed);
>+}
>+
>+bool Waiter::Wait(KernelTimeout t) {
>+  LockHolder h(&mu_);
>+  waiter_count_.fetch_add(1, std::memory_order_relaxed);
>+
>+  // Loop until we find a wakeup to consume or timeout.
>+  while (true) {
>+    int x = wakeup_count_.load(std::memory_order_relaxed);
>+    if (x != 0) {
>+      if (!wakeup_count_.compare_exchange_weak(x, x - 1,
>+                                               std::memory_order_acquire,
>+                                               std::memory_order_relaxed)) {
>+        continue;  // Raced with someone, retry.
>+      }
>+      // Successfully consumed a wakeup, we're done.
>+      waiter_count_.fetch_sub(1, std::memory_order_relaxed);
>+      return true;
>+    }
>+
>+    // No wakeups available, time to wait.
>+    if (!SleepConditionVariableSRW(
>+            &cv_, &mu_, t.InMillisecondsFromNow(), 0)) {
>+      // GetLastError() returns a Win32 DWORD, but we assign to
>+      // unsigned long to simplify the ABSL_RAW_LOG case below.  The uniform
>+      // initialization guarantees this is not a narrowing conversion.
>+      const unsigned long err{GetLastError()};  // NOLINT(runtime/int)
>+      if (err == ERROR_TIMEOUT) {
>+        waiter_count_.fetch_sub(1, std::memory_order_relaxed);
>+        return false;
>+      } else {
>+        ABSL_RAW_LOG(FATAL, "SleepConditionVariableSRW failed: %lu", err);
>+      }
>+    }
>+
>+    MaybeBecomeIdle();
>+  }
>+}
>+
>+void Waiter::Post() {
>+  wakeup_count_.fetch_add(1, std::memory_order_release);
>+  Poke();
>+}
>+
>+void Waiter::Poke() {
>+  if (waiter_count_.load(std::memory_order_relaxed) == 0) {
>+    return;
>+  }
>+  // Potentially a waker. Take the lock and check again.
>+  LockHolder h(&mu_);
>+  if (waiter_count_.load(std::memory_order_relaxed) == 0) {
>+    return;
>+  }
>+  WakeConditionVariable(&cv_);
>+}
>+
>+#else
>+#error Unknown ABSL_WAITER_MODE
>+#endif
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..23166f4bfa3786a2415c16bb153d1b8ad781cf29
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/internal/waiter.h
>@@ -0,0 +1,139 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+
>+#ifndef ABSL_SYNCHRONIZATION_INTERNAL_WAITER_H_
>+#define ABSL_SYNCHRONIZATION_INTERNAL_WAITER_H_
>+
>+#include "absl/base/config.h"
>+
>+#ifdef _WIN32
>+#include <windows.h>
>+#else
>+#include <pthread.h>
>+#endif
>+
>+#ifdef ABSL_HAVE_SEMAPHORE_H
>+#include <semaphore.h>
>+#endif
>+
>+#include <atomic>
>+#include <cstdint>
>+
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/synchronization/internal/kernel_timeout.h"
>+
>+// May be chosen at compile time via -DABSL_FORCE_WAITER_MODE=<index>
>+#define ABSL_WAITER_MODE_FUTEX 0
>+#define ABSL_WAITER_MODE_SEM 1
>+#define ABSL_WAITER_MODE_CONDVAR 2
>+#define ABSL_WAITER_MODE_WIN32 3
>+
>+#if defined(ABSL_FORCE_WAITER_MODE)
>+#define ABSL_WAITER_MODE ABSL_FORCE_WAITER_MODE
>+#elif defined(_WIN32)
>+#define ABSL_WAITER_MODE ABSL_WAITER_MODE_WIN32
>+#elif defined(__linux__)
>+#define ABSL_WAITER_MODE ABSL_WAITER_MODE_FUTEX
>+#elif defined(ABSL_HAVE_SEMAPHORE_H)
>+#define ABSL_WAITER_MODE ABSL_WAITER_MODE_SEM
>+#else
>+#define ABSL_WAITER_MODE ABSL_WAITER_MODE_CONDVAR
>+#endif
>+
>+namespace absl {
>+namespace synchronization_internal {
>+
>+// Waiter is an OS-specific semaphore.
>+class Waiter {
>+ public:
>+  // No constructor, instances use the reserved space in ThreadIdentity.
>+  // All initialization logic belongs in `Init()`.
>+  Waiter() = delete;
>+  Waiter(const Waiter&) = delete;
>+  Waiter& operator=(const Waiter&) = delete;
>+
>+  // Prepare any data to track waits.
>+  void Init();
>+
>+  // Blocks the calling thread until a matching call to `Post()` or
>+  // `t` has passed. Returns `true` if woken (`Post()` called),
>+  // `false` on timeout.
>+  bool Wait(KernelTimeout t);
>+
>+  // Restart the caller of `Wait()` as with a normal semaphore.
>+  void Post();
>+
>+  // If anyone is waiting, wake them up temporarily and cause them to
>+  // call `MaybeBecomeIdle()`. They will then return to waiting for a
>+  // `Post()` or timeout.
>+  void Poke();
>+
>+  // Returns the Waiter associated with the identity.
>+  static Waiter* GetWaiter(base_internal::ThreadIdentity* identity) {
>+    static_assert(
>+        sizeof(Waiter) <= sizeof(base_internal::ThreadIdentity::WaiterState),
>+        "Insufficient space for Waiter");
>+    return reinterpret_cast<Waiter*>(identity->waiter_state.data);
>+  }
>+
>+  // How many periods to remain idle before releasing resources
>+#ifndef THREAD_SANITIZER
>+  static const int kIdlePeriods = 60;
>+#else
>+  // Memory consumption under ThreadSanitizer is a serious concern,
>+  // so we release resources sooner. The value of 1 leads to 1 to 2 second
>+  // delay before marking a thread as idle.
>+  static const int kIdlePeriods = 1;
>+#endif
>+
>+ private:
>+#if ABSL_WAITER_MODE == ABSL_WAITER_MODE_FUTEX
>+  // Futexes are defined by specification to be 32-bits.
>+  // Thus std::atomic<int32_t> must be just an int32_t with lockfree methods.
>+  std::atomic<int32_t> futex_;
>+  static_assert(sizeof(int32_t) == sizeof(futex_), "Wrong size for futex");
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_CONDVAR
>+  pthread_mutex_t mu_;
>+  pthread_cond_t cv_;
>+  std::atomic<int> waiter_count_;
>+  std::atomic<int> wakeup_count_;  // Unclaimed wakeups, written under lock.
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_SEM
>+  sem_t sem_;
>+  // This seems superfluous, but for Poke() we need to cause spurious
>+  // wakeups on the semaphore. Hence we can't actually use the
>+  // semaphore's count.
>+  std::atomic<int> wakeups_;
>+
>+#elif ABSL_WAITER_MODE == ABSL_WAITER_MODE_WIN32
>+  // The Windows API has lots of choices for synchronization
>+  // primivitives.  We are using SRWLOCK and CONDITION_VARIABLE
>+  // because they don't require a destructor to release system
>+  // resources.
>+  SRWLOCK mu_;
>+  CONDITION_VARIABLE cv_;
>+  std::atomic<int> waiter_count_;
>+  std::atomic<int> wakeup_count_;
>+
>+#else
>+  #error Unknown ABSL_WAITER_MODE
>+#endif
>+};
>+
>+}  // namespace synchronization_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_SYNCHRONIZATION_INTERNAL_WAITER_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/lifetime_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/lifetime_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..90c9009b18fafc9ea295cab146c65dd682cbf572
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/lifetime_test.cc
>@@ -0,0 +1,132 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstdlib>
>+#include <thread>  // NOLINT(build/c++11), Abseil test
>+#include <type_traits>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/mutex.h"
>+#include "absl/synchronization/notification.h"
>+
>+namespace {
>+
>+// A two-threaded test which checks that Mutex, CondVar, and Notification have
>+// correct basic functionality.  The intent is to establish that they
>+// function correctly in various phases of construction and destruction.
>+//
>+// Thread one acquires a lock on 'mutex', wakes thread two via 'notification',
>+// then waits for 'state' to be set, as signalled by 'condvar'.
>+//
>+// Thread two waits on 'notification', then sets 'state' inside the 'mutex',
>+// signalling the change via 'condvar'.
>+//
>+// These tests use ABSL_RAW_CHECK to validate invariants, rather than EXPECT or
>+// ASSERT from gUnit, because we need to invoke them during global destructors,
>+// when gUnit teardown would have already begun.
>+void ThreadOne(absl::Mutex* mutex, absl::CondVar* condvar,
>+               absl::Notification* notification, bool* state) {
>+  // Test that the notification is in a valid initial state.
>+  ABSL_RAW_CHECK(!notification->HasBeenNotified(), "invalid Notification");
>+  ABSL_RAW_CHECK(*state == false, "*state not initialized");
>+
>+  {
>+    absl::MutexLock lock(mutex);
>+
>+    notification->Notify();
>+    ABSL_RAW_CHECK(notification->HasBeenNotified(), "invalid Notification");
>+
>+    while (*state == false) {
>+      condvar->Wait(mutex);
>+    }
>+  }
>+}
>+
>+void ThreadTwo(absl::Mutex* mutex, absl::CondVar* condvar,
>+               absl::Notification* notification, bool* state) {
>+  ABSL_RAW_CHECK(*state == false, "*state not initialized");
>+
>+  // Wake thread one
>+  notification->WaitForNotification();
>+  ABSL_RAW_CHECK(notification->HasBeenNotified(), "invalid Notification");
>+  {
>+    absl::MutexLock lock(mutex);
>+    *state = true;
>+    condvar->Signal();
>+  }
>+}
>+
>+// Launch thread 1 and thread 2, and block on their completion.
>+// If any of 'mutex', 'condvar', or 'notification' is nullptr, use a locally
>+// constructed instance instead.
>+void RunTests(absl::Mutex* mutex, absl::CondVar* condvar,
>+              absl::Notification* notification) {
>+  absl::Mutex default_mutex;
>+  absl::CondVar default_condvar;
>+  absl::Notification default_notification;
>+  if (!mutex) {
>+    mutex = &default_mutex;
>+  }
>+  if (!condvar) {
>+    condvar = &default_condvar;
>+  }
>+  if (!notification) {
>+    notification = &default_notification;
>+  }
>+  bool state = false;
>+  std::thread thread_one(ThreadOne, mutex, condvar, notification, &state);
>+  std::thread thread_two(ThreadTwo, mutex, condvar, notification, &state);
>+  thread_one.join();
>+  thread_two.join();
>+}
>+
>+void TestLocals() {
>+  absl::Mutex mutex;
>+  absl::CondVar condvar;
>+  absl::Notification notification;
>+  RunTests(&mutex, &condvar, &notification);
>+}
>+
>+// Global variables during start and termination
>+//
>+// In a translation unit, static storage duration variables are initialized in
>+// the order of their definitions, and destroyed in the reverse order of their
>+// definitions.  We can use this to arrange for tests to be run on these objects
>+// before they are created, and after they are destroyed.
>+
>+using Function = void (*)();
>+
>+class OnConstruction {
>+ public:
>+  explicit OnConstruction(Function fn) { fn(); }
>+};
>+
>+class OnDestruction {
>+ public:
>+  explicit OnDestruction(Function fn) : fn_(fn) {}
>+  ~OnDestruction() { fn_(); }
>+ private:
>+  Function fn_;
>+};
>+
>+}  // namespace
>+
>+int main() {
>+  TestLocals();
>+  // Explicitly call exit(0) here, to make it clear that we intend for the
>+  // above global object destructors to run.
>+  std::exit(0);
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..80f34f035fc6b679eeb0b14d89cfaeaa1f80f051
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.cc
>@@ -0,0 +1,2687 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/mutex.h"
>+
>+#ifdef _WIN32
>+#include <windows.h>
>+#ifdef ERROR
>+#undef ERROR
>+#endif
>+#else
>+#include <fcntl.h>
>+#include <pthread.h>
>+#include <sched.h>
>+#include <sys/time.h>
>+#endif
>+
>+#include <assert.h>
>+#include <errno.h>
>+#include <stdio.h>
>+#include <stdlib.h>
>+#include <string.h>
>+#include <time.h>
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cinttypes>
>+#include <thread>  // NOLINT(build/c++11)
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/config.h"
>+#include "absl/base/dynamic_annotations.h"
>+#include "absl/base/internal/atomic_hook.h"
>+#include "absl/base/internal/cycleclock.h"
>+#include "absl/base/internal/hide_ptr.h"
>+#include "absl/base/internal/low_level_alloc.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/internal/sysinfo.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/base/port.h"
>+#include "absl/debugging/stacktrace.h"
>+#include "absl/debugging/symbolize.h"
>+#include "absl/synchronization/internal/graphcycles.h"
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+#include "absl/time/time.h"
>+
>+using absl::base_internal::CurrentThreadIdentityIfPresent;
>+using absl::base_internal::PerThreadSynch;
>+using absl::base_internal::ThreadIdentity;
>+using absl::synchronization_internal::GetOrCreateCurrentThreadIdentity;
>+using absl::synchronization_internal::GraphCycles;
>+using absl::synchronization_internal::GraphId;
>+using absl::synchronization_internal::InvalidGraphId;
>+using absl::synchronization_internal::KernelTimeout;
>+using absl::synchronization_internal::PerThreadSem;
>+
>+extern "C" {
>+ABSL_ATTRIBUTE_WEAK void AbslInternalMutexYield() { std::this_thread::yield(); }
>+}  // extern "C"
>+
>+namespace absl {
>+
>+namespace {
>+
>+#if defined(THREAD_SANITIZER)
>+constexpr OnDeadlockCycle kDeadlockDetectionDefault = OnDeadlockCycle::kIgnore;
>+#else
>+constexpr OnDeadlockCycle kDeadlockDetectionDefault = OnDeadlockCycle::kAbort;
>+#endif
>+
>+ABSL_CONST_INIT std::atomic<OnDeadlockCycle> synch_deadlock_detection(
>+    kDeadlockDetectionDefault);
>+ABSL_CONST_INIT std::atomic<bool> synch_check_invariants(false);
>+
>+// ------------------------------------------ spinlock support
>+
>+// Make sure read-only globals used in the Mutex code are contained on the
>+// same cacheline and cacheline aligned to eliminate any false sharing with
>+// other globals from this and other modules.
>+static struct MutexGlobals {
>+  MutexGlobals() {
>+    // Find machine-specific data needed for Delay() and
>+    // TryAcquireWithSpinning(). This runs in the global constructor
>+    // sequence, and before that zeros are safe values.
>+    num_cpus = absl::base_internal::NumCPUs();
>+    spinloop_iterations = num_cpus > 1 ? 1500 : 0;
>+  }
>+  int num_cpus;
>+  int spinloop_iterations;
>+  // Pad this struct to a full cacheline to prevent false sharing.
>+  char padding[ABSL_CACHELINE_SIZE - 2 * sizeof(int)];
>+} ABSL_CACHELINE_ALIGNED mutex_globals;
>+static_assert(
>+    sizeof(MutexGlobals) == ABSL_CACHELINE_SIZE,
>+    "MutexGlobals must occupy an entire cacheline to prevent false sharing");
>+
>+ABSL_CONST_INIT absl::base_internal::AtomicHook<void (*)(int64_t wait_cycles)>
>+    submit_profile_data;
>+ABSL_CONST_INIT absl::base_internal::AtomicHook<
>+    void (*)(const char *msg, const void *obj, int64_t wait_cycles)> mutex_tracer;
>+ABSL_CONST_INIT absl::base_internal::AtomicHook<
>+    void (*)(const char *msg, const void *cv)> cond_var_tracer;
>+ABSL_CONST_INIT absl::base_internal::AtomicHook<
>+    bool (*)(const void *pc, char *out, int out_size)>
>+    symbolizer(absl::Symbolize);
>+
>+}  // namespace
>+
>+void RegisterMutexProfiler(void (*fn)(int64_t wait_timestamp)) {
>+  submit_profile_data.Store(fn);
>+}
>+
>+void RegisterMutexTracer(void (*fn)(const char *msg, const void *obj,
>+                                    int64_t wait_cycles)) {
>+  mutex_tracer.Store(fn);
>+}
>+
>+void RegisterCondVarTracer(void (*fn)(const char *msg, const void *cv)) {
>+  cond_var_tracer.Store(fn);
>+}
>+
>+void RegisterSymbolizer(bool (*fn)(const void *pc, char *out, int out_size)) {
>+  symbolizer.Store(fn);
>+}
>+
>+// spinlock delay on iteration c.  Returns new c.
>+namespace {
>+  enum DelayMode { AGGRESSIVE, GENTLE };
>+};
>+static int Delay(int32_t c, DelayMode mode) {
>+  // If this a uniprocessor, only yield/sleep.  Otherwise, if the mode is
>+  // aggressive then spin many times before yielding.  If the mode is
>+  // gentle then spin only a few times before yielding.  Aggressive spinning is
>+  // used to ensure that an Unlock() call, which  must get the spin lock for
>+  // any thread to make progress gets it without undue delay.
>+  int32_t limit = (mutex_globals.num_cpus > 1) ?
>+      ((mode == AGGRESSIVE) ? 5000 : 250) : 0;
>+  if (c < limit) {
>+    c++;               // spin
>+  } else {
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(0, 0);
>+    if (c == limit) {  // yield once
>+      AbslInternalMutexYield();
>+      c++;
>+    } else {           // then wait
>+      absl::SleepFor(absl::Microseconds(10));
>+      c = 0;
>+    }
>+    ABSL_TSAN_MUTEX_POST_DIVERT(0, 0);
>+  }
>+  return (c);
>+}
>+
>+// --------------------------Generic atomic ops
>+// Ensure that "(*pv & bits) == bits" by doing an atomic update of "*pv" to
>+// "*pv | bits" if necessary.  Wait until (*pv & wait_until_clear)==0
>+// before making any change.
>+// This is used to set flags in mutex and condition variable words.
>+static void AtomicSetBits(std::atomic<intptr_t>* pv, intptr_t bits,
>+                          intptr_t wait_until_clear) {
>+  intptr_t v;
>+  do {
>+    v = pv->load(std::memory_order_relaxed);
>+  } while ((v & bits) != bits &&
>+           ((v & wait_until_clear) != 0 ||
>+            !pv->compare_exchange_weak(v, v | bits,
>+                                       std::memory_order_release,
>+                                       std::memory_order_relaxed)));
>+}
>+
>+// Ensure that "(*pv & bits) == 0" by doing an atomic update of "*pv" to
>+// "*pv & ~bits" if necessary.  Wait until (*pv & wait_until_clear)==0
>+// before making any change.
>+// This is used to unset flags in mutex and condition variable words.
>+static void AtomicClearBits(std::atomic<intptr_t>* pv, intptr_t bits,
>+                            intptr_t wait_until_clear) {
>+  intptr_t v;
>+  do {
>+    v = pv->load(std::memory_order_relaxed);
>+  } while ((v & bits) != 0 &&
>+           ((v & wait_until_clear) != 0 ||
>+            !pv->compare_exchange_weak(v, v & ~bits,
>+                                       std::memory_order_release,
>+                                       std::memory_order_relaxed)));
>+}
>+
>+//------------------------------------------------------------------
>+
>+// Data for doing deadlock detection.
>+static absl::base_internal::SpinLock deadlock_graph_mu(
>+    absl::base_internal::kLinkerInitialized);
>+
>+// graph used to detect deadlocks.
>+static GraphCycles *deadlock_graph GUARDED_BY(deadlock_graph_mu)
>+    PT_GUARDED_BY(deadlock_graph_mu);
>+
>+//------------------------------------------------------------------
>+// An event mechanism for debugging mutex use.
>+// It also allows mutexes to be given names for those who can't handle
>+// addresses, and instead like to give their data structures names like
>+// "Henry", "Fido", or "Rupert IV, King of Yondavia".
>+
>+namespace {  // to prevent name pollution
>+enum {       // Mutex and CondVar events passed as "ev" to PostSynchEvent
>+             // Mutex events
>+  SYNCH_EV_TRYLOCK_SUCCESS,
>+  SYNCH_EV_TRYLOCK_FAILED,
>+  SYNCH_EV_READERTRYLOCK_SUCCESS,
>+  SYNCH_EV_READERTRYLOCK_FAILED,
>+  SYNCH_EV_LOCK,
>+  SYNCH_EV_LOCK_RETURNING,
>+  SYNCH_EV_READERLOCK,
>+  SYNCH_EV_READERLOCK_RETURNING,
>+  SYNCH_EV_UNLOCK,
>+  SYNCH_EV_READERUNLOCK,
>+
>+  // CondVar events
>+  SYNCH_EV_WAIT,
>+  SYNCH_EV_WAIT_RETURNING,
>+  SYNCH_EV_SIGNAL,
>+  SYNCH_EV_SIGNALALL,
>+};
>+
>+enum {                 // Event flags
>+  SYNCH_F_R = 0x01,    // reader event
>+  SYNCH_F_LCK = 0x02,  // PostSynchEvent called with mutex held
>+  SYNCH_F_ACQ = 0x04,  // event is an acquire
>+
>+  SYNCH_F_LCK_W = SYNCH_F_LCK,
>+  SYNCH_F_LCK_R = SYNCH_F_LCK | SYNCH_F_R,
>+  SYNCH_F_ACQ_W = SYNCH_F_ACQ,
>+  SYNCH_F_ACQ_R = SYNCH_F_ACQ | SYNCH_F_R,
>+};
>+}  // anonymous namespace
>+
>+// Properties of the events.
>+static const struct {
>+  int flags;
>+  const char *msg;
>+} event_properties[] = {
>+  { SYNCH_F_LCK_W|SYNCH_F_ACQ_W, "TryLock succeeded " },
>+  { 0,                           "TryLock failed " },
>+  { SYNCH_F_LCK_R|SYNCH_F_ACQ_R, "ReaderTryLock succeeded " },
>+  { 0,                           "ReaderTryLock failed " },
>+  {               SYNCH_F_ACQ_W, "Lock blocking " },
>+  { SYNCH_F_LCK_W,               "Lock returning " },
>+  {               SYNCH_F_ACQ_R, "ReaderLock blocking " },
>+  { SYNCH_F_LCK_R,               "ReaderLock returning " },
>+  { SYNCH_F_LCK_W,               "Unlock " },
>+  { SYNCH_F_LCK_R,               "ReaderUnlock " },
>+  { 0,                           "Wait on " },
>+  { 0,                           "Wait unblocked " },
>+  { 0,                           "Signal on " },
>+  { 0,                           "SignalAll on " },
>+};
>+static absl::base_internal::SpinLock synch_event_mu(
>+    absl::base_internal::kLinkerInitialized);
>+// protects synch_event
>+
>+// Hash table size; should be prime > 2.
>+// Can't be too small, as it's used for deadlock detection information.
>+static const uint32_t kNSynchEvent = 1031;
>+
>+static struct SynchEvent {     // this is a trivial hash table for the events
>+  // struct is freed when refcount reaches 0
>+  int refcount GUARDED_BY(synch_event_mu);
>+
>+  // buckets have linear, 0-terminated  chains
>+  SynchEvent *next GUARDED_BY(synch_event_mu);
>+
>+  // Constant after initialization
>+  uintptr_t masked_addr;  // object at this address is called "name"
>+
>+  // No explicit synchronization used.  Instead we assume that the
>+  // client who enables/disables invariants/logging on a Mutex does so
>+  // while the Mutex is not being concurrently accessed by others.
>+  void (*invariant)(void *arg);  // called on each event
>+  void *arg;            // first arg to (*invariant)()
>+  bool log;             // logging turned on
>+
>+  // Constant after initialization
>+  char name[1];         // actually longer---null-terminated std::string
>+} *synch_event[kNSynchEvent] GUARDED_BY(synch_event_mu);
>+
>+// Ensure that the object at "addr" has a SynchEvent struct associated with it,
>+// set "bits" in the word there (waiting until lockbit is clear before doing
>+// so), and return a refcounted reference that will remain valid until
>+// UnrefSynchEvent() is called.  If a new SynchEvent is allocated,
>+// the std::string name is copied into it.
>+// When used with a mutex, the caller should also ensure that kMuEvent
>+// is set in the mutex word, and similarly for condition variables and kCVEvent.
>+static SynchEvent *EnsureSynchEvent(std::atomic<intptr_t> *addr,
>+                                    const char *name, intptr_t bits,
>+                                    intptr_t lockbit) {
>+  uint32_t h = reinterpret_cast<intptr_t>(addr) % kNSynchEvent;
>+  SynchEvent *e;
>+  // first look for existing SynchEvent struct..
>+  synch_event_mu.Lock();
>+  for (e = synch_event[h];
>+       e != nullptr && e->masked_addr != base_internal::HidePtr(addr);
>+       e = e->next) {
>+  }
>+  if (e == nullptr) {  // no SynchEvent struct found; make one.
>+    if (name == nullptr) {
>+      name = "";
>+    }
>+    size_t l = strlen(name);
>+    e = reinterpret_cast<SynchEvent *>(
>+        base_internal::LowLevelAlloc::Alloc(sizeof(*e) + l));
>+    e->refcount = 2;    // one for return value, one for linked list
>+    e->masked_addr = base_internal::HidePtr(addr);
>+    e->invariant = nullptr;
>+    e->arg = nullptr;
>+    e->log = false;
>+    strcpy(e->name, name);  // NOLINT(runtime/printf)
>+    e->next = synch_event[h];
>+    AtomicSetBits(addr, bits, lockbit);
>+    synch_event[h] = e;
>+  } else {
>+    e->refcount++;      // for return value
>+  }
>+  synch_event_mu.Unlock();
>+  return e;
>+}
>+
>+// Deallocate the SynchEvent *e, whose refcount has fallen to zero.
>+static void DeleteSynchEvent(SynchEvent *e) {
>+  base_internal::LowLevelAlloc::Free(e);
>+}
>+
>+// Decrement the reference count of *e, or do nothing if e==null.
>+static void UnrefSynchEvent(SynchEvent *e) {
>+  if (e != nullptr) {
>+    synch_event_mu.Lock();
>+    bool del = (--(e->refcount) == 0);
>+    synch_event_mu.Unlock();
>+    if (del) {
>+      DeleteSynchEvent(e);
>+    }
>+  }
>+}
>+
>+// Forget the mapping from the object (Mutex or CondVar) at address addr
>+// to SynchEvent object, and clear "bits" in its word (waiting until lockbit
>+// is clear before doing so).
>+static void ForgetSynchEvent(std::atomic<intptr_t> *addr, intptr_t bits,
>+                             intptr_t lockbit) {
>+  uint32_t h = reinterpret_cast<intptr_t>(addr) % kNSynchEvent;
>+  SynchEvent **pe;
>+  SynchEvent *e;
>+  synch_event_mu.Lock();
>+  for (pe = &synch_event[h];
>+       (e = *pe) != nullptr && e->masked_addr != base_internal::HidePtr(addr);
>+       pe = &e->next) {
>+  }
>+  bool del = false;
>+  if (e != nullptr) {
>+    *pe = e->next;
>+    del = (--(e->refcount) == 0);
>+  }
>+  AtomicClearBits(addr, bits, lockbit);
>+  synch_event_mu.Unlock();
>+  if (del) {
>+    DeleteSynchEvent(e);
>+  }
>+}
>+
>+// Return a refcounted reference to the SynchEvent of the object at address
>+// "addr", if any.  The pointer returned is valid until the UnrefSynchEvent() is
>+// called.
>+static SynchEvent *GetSynchEvent(const void *addr) {
>+  uint32_t h = reinterpret_cast<intptr_t>(addr) % kNSynchEvent;
>+  SynchEvent *e;
>+  synch_event_mu.Lock();
>+  for (e = synch_event[h];
>+       e != nullptr && e->masked_addr != base_internal::HidePtr(addr);
>+       e = e->next) {
>+  }
>+  if (e != nullptr) {
>+    e->refcount++;
>+  }
>+  synch_event_mu.Unlock();
>+  return e;
>+}
>+
>+// Called when an event "ev" occurs on a Mutex of CondVar "obj"
>+// if event recording is on
>+static void PostSynchEvent(void *obj, int ev) {
>+  SynchEvent *e = GetSynchEvent(obj);
>+  // logging is on if event recording is on and either there's no event struct,
>+  // or it explicitly says to log
>+  if (e == nullptr || e->log) {
>+    void *pcs[40];
>+    int n = absl::GetStackTrace(pcs, ABSL_ARRAYSIZE(pcs), 1);
>+    // A buffer with enough space for the ASCII for all the PCs, even on a
>+    // 64-bit machine.
>+    char buffer[ABSL_ARRAYSIZE(pcs) * 24];
>+    int pos = snprintf(buffer, sizeof (buffer), " @");
>+    for (int i = 0; i != n; i++) {
>+      pos += snprintf(&buffer[pos], sizeof (buffer) - pos, " %p", pcs[i]);
>+    }
>+    ABSL_RAW_LOG(INFO, "%s%p %s %s", event_properties[ev].msg, obj,
>+                 (e == nullptr ? "" : e->name), buffer);
>+  }
>+  if ((event_properties[ev].flags & SYNCH_F_LCK) != 0 && e != nullptr &&
>+      e->invariant != nullptr) {
>+    (*e->invariant)(e->arg);
>+  }
>+  UnrefSynchEvent(e);
>+}
>+
>+//------------------------------------------------------------------
>+
>+// The SynchWaitParams struct encapsulates the way in which a thread is waiting:
>+// whether it has a timeout, the condition, exclusive/shared, and whether a
>+// condition variable wait has an associated Mutex (as opposed to another
>+// type of lock).  It also points to the PerThreadSynch struct of its thread.
>+// cv_word tells Enqueue() to enqueue on a CondVar using CondVarEnqueue().
>+//
>+// This structure is held on the stack rather than directly in
>+// PerThreadSynch because a thread can be waiting on multiple Mutexes if,
>+// while waiting on one Mutex, the implementation calls a client callback
>+// (such as a Condition function) that acquires another Mutex. We don't
>+// strictly need to allow this, but programmers become confused if we do not
>+// allow them to use functions such a LOG() within Condition functions.  The
>+// PerThreadSynch struct points at the most recent SynchWaitParams struct when
>+// the thread is on a Mutex's waiter queue.
>+struct SynchWaitParams {
>+  SynchWaitParams(Mutex::MuHow how_arg, const Condition *cond_arg,
>+                  KernelTimeout timeout_arg, Mutex *cvmu_arg,
>+                  PerThreadSynch *thread_arg,
>+                  std::atomic<intptr_t> *cv_word_arg)
>+      : how(how_arg),
>+        cond(cond_arg),
>+        timeout(timeout_arg),
>+        cvmu(cvmu_arg),
>+        thread(thread_arg),
>+        cv_word(cv_word_arg),
>+        contention_start_cycles(base_internal::CycleClock::Now()) {}
>+
>+  const Mutex::MuHow how;  // How this thread needs to wait.
>+  const Condition *cond;  // The condition that this thread is waiting for.
>+                          // In Mutex, this field is set to zero if a timeout
>+                          // expires.
>+  KernelTimeout timeout;  // timeout expiry---absolute time
>+                          // In Mutex, this field is set to zero if a timeout
>+                          // expires.
>+  Mutex *const cvmu;      // used for transfer from cond var to mutex
>+  PerThreadSynch *const thread;  // thread that is waiting
>+
>+  // If not null, thread should be enqueued on the CondVar whose state
>+  // word is cv_word instead of queueing normally on the Mutex.
>+  std::atomic<intptr_t> *cv_word;
>+
>+  int64_t contention_start_cycles;  // Time (in cycles) when this thread started
>+                                  // to contend for the mutex.
>+};
>+
>+struct SynchLocksHeld {
>+  int n;              // number of valid entries in locks[]
>+  bool overflow;      // true iff we overflowed the array at some point
>+  struct {
>+    Mutex *mu;        // lock acquired
>+    int32_t count;      // times acquired
>+    GraphId id;       // deadlock_graph id of acquired lock
>+  } locks[40];
>+  // If a thread overfills the array during deadlock detection, we
>+  // continue, discarding information as needed.  If no overflow has
>+  // taken place, we can provide more error checking, such as
>+  // detecting when a thread releases a lock it does not hold.
>+};
>+
>+// A sentinel value in lists that is not 0.
>+// A 0 value is used to mean "not on a list".
>+static PerThreadSynch *const kPerThreadSynchNull =
>+  reinterpret_cast<PerThreadSynch *>(1);
>+
>+static SynchLocksHeld *LocksHeldAlloc() {
>+  SynchLocksHeld *ret = reinterpret_cast<SynchLocksHeld *>(
>+      base_internal::LowLevelAlloc::Alloc(sizeof(SynchLocksHeld)));
>+  ret->n = 0;
>+  ret->overflow = false;
>+  return ret;
>+}
>+
>+// Return the PerThreadSynch-struct for this thread.
>+static PerThreadSynch *Synch_GetPerThread() {
>+  ThreadIdentity *identity = GetOrCreateCurrentThreadIdentity();
>+  return &identity->per_thread_synch;
>+}
>+
>+static PerThreadSynch *Synch_GetPerThreadAnnotated(Mutex *mu) {
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(mu, 0);
>+  }
>+  PerThreadSynch *w = Synch_GetPerThread();
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_POST_DIVERT(mu, 0);
>+  }
>+  return w;
>+}
>+
>+static SynchLocksHeld *Synch_GetAllLocks() {
>+  PerThreadSynch *s = Synch_GetPerThread();
>+  if (s->all_locks == nullptr) {
>+    s->all_locks = LocksHeldAlloc();  // Freed by ReclaimThreadIdentity.
>+  }
>+  return s->all_locks;
>+}
>+
>+// Post on "w"'s associated PerThreadSem.
>+inline void Mutex::IncrementSynchSem(Mutex *mu, PerThreadSynch *w) {
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(mu, 0);
>+  }
>+  PerThreadSem::Post(w->thread_identity());
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_POST_DIVERT(mu, 0);
>+  }
>+}
>+
>+// Wait on "w"'s associated PerThreadSem; returns false if timeout expired.
>+bool Mutex::DecrementSynchSem(Mutex *mu, PerThreadSynch *w, KernelTimeout t) {
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_PRE_DIVERT(mu, 0);
>+  }
>+  assert(w == Synch_GetPerThread());
>+  static_cast<void>(w);
>+  bool res = PerThreadSem::Wait(t);
>+  if (mu) {
>+    ABSL_TSAN_MUTEX_POST_DIVERT(mu, 0);
>+  }
>+  return res;
>+}
>+
>+// We're in a fatal signal handler that hopes to use Mutex and to get
>+// lucky by not deadlocking.  We try to improve its chances of success
>+// by effectively disabling some of the consistency checks.  This will
>+// prevent certain ABSL_RAW_CHECK() statements from being triggered when
>+// re-rentry is detected.  The ABSL_RAW_CHECK() statements are those in the
>+// Mutex code checking that the "waitp" field has not been reused.
>+void Mutex::InternalAttemptToUseMutexInFatalSignalHandler() {
>+  // Fix the per-thread state only if it exists.
>+  ThreadIdentity *identity = CurrentThreadIdentityIfPresent();
>+  if (identity != nullptr) {
>+    identity->per_thread_synch.suppress_fatal_errors = true;
>+  }
>+  // Don't do deadlock detection when we are already failing.
>+  synch_deadlock_detection.store(OnDeadlockCycle::kIgnore,
>+                                 std::memory_order_release);
>+}
>+
>+// --------------------------time support
>+
>+// Return the current time plus the timeout.  Use the same clock as
>+// PerThreadSem::Wait() for consistency.  Unfortunately, we don't have
>+// such a choice when a deadline is given directly.
>+static absl::Time DeadlineFromTimeout(absl::Duration timeout) {
>+#ifndef _WIN32
>+  struct timeval tv;
>+  gettimeofday(&tv, nullptr);
>+  return absl::TimeFromTimeval(tv) + timeout;
>+#else
>+  return absl::Now() + timeout;
>+#endif
>+}
>+
>+// --------------------------Mutexes
>+
>+// In the layout below, the msb of the bottom byte is currently unused.  Also,
>+// the following constraints were considered in choosing the layout:
>+//  o Both the debug allocator's "uninitialized" and "freed" patterns (0xab and
>+//    0xcd) are illegal: reader and writer lock both held.
>+//  o kMuWriter and kMuEvent should exceed kMuDesig and kMuWait, to enable the
>+//    bit-twiddling trick in Mutex::Unlock().
>+//  o kMuWriter / kMuReader == kMuWrWait / kMuWait,
>+//    to enable the bit-twiddling trick in CheckForMutexCorruption().
>+static const intptr_t kMuReader      = 0x0001L;  // a reader holds the lock
>+static const intptr_t kMuDesig       = 0x0002L;  // there's a designated waker
>+static const intptr_t kMuWait        = 0x0004L;  // threads are waiting
>+static const intptr_t kMuWriter      = 0x0008L;  // a writer holds the lock
>+static const intptr_t kMuEvent       = 0x0010L;  // record this mutex's events
>+// INVARIANT1:  there's a thread that was blocked on the mutex, is
>+// no longer, yet has not yet acquired the mutex.  If there's a
>+// designated waker, all threads can avoid taking the slow path in
>+// unlock because the designated waker will subsequently acquire
>+// the lock and wake someone.  To maintain INVARIANT1 the bit is
>+// set when a thread is unblocked(INV1a), and threads that were
>+// unblocked reset the bit when they either acquire or re-block
>+// (INV1b).
>+static const intptr_t kMuWrWait      = 0x0020L;  // runnable writer is waiting
>+                                                 // for a reader
>+static const intptr_t kMuSpin        = 0x0040L;  // spinlock protects wait list
>+static const intptr_t kMuLow         = 0x00ffL;  // mask all mutex bits
>+static const intptr_t kMuHigh        = ~kMuLow;  // mask pointer/reader count
>+
>+// Hack to make constant values available to gdb pretty printer
>+enum {
>+  kGdbMuSpin = kMuSpin,
>+  kGdbMuEvent = kMuEvent,
>+  kGdbMuWait = kMuWait,
>+  kGdbMuWriter = kMuWriter,
>+  kGdbMuDesig = kMuDesig,
>+  kGdbMuWrWait = kMuWrWait,
>+  kGdbMuReader = kMuReader,
>+  kGdbMuLow = kMuLow,
>+};
>+
>+// kMuWrWait implies kMuWait.
>+// kMuReader and kMuWriter are mutually exclusive.
>+// If kMuReader is zero, there are no readers.
>+// Otherwise, if kMuWait is zero, the high order bits contain a count of the
>+// number of readers.  Otherwise, the reader count is held in
>+// PerThreadSynch::readers of the most recently queued waiter, again in the
>+// bits above kMuLow.
>+static const intptr_t kMuOne = 0x0100;  // a count of one reader
>+
>+// flags passed to Enqueue and LockSlow{,WithTimeout,Loop}
>+static const int kMuHasBlocked = 0x01;  // already blocked (MUST == 1)
>+static const int kMuIsCond = 0x02;      // conditional waiter (CV or Condition)
>+
>+static_assert(PerThreadSynch::kAlignment > kMuLow,
>+              "PerThreadSynch::kAlignment must be greater than kMuLow");
>+
>+// This struct contains various bitmasks to be used in
>+// acquiring and releasing a mutex in a particular mode.
>+struct MuHowS {
>+  // if all the bits in fast_need_zero are zero, the lock can be acquired by
>+  // adding fast_add and oring fast_or.  The bit kMuDesig should be reset iff
>+  // this is the designated waker.
>+  intptr_t fast_need_zero;
>+  intptr_t fast_or;
>+  intptr_t fast_add;
>+
>+  intptr_t slow_need_zero;  // fast_need_zero with events (e.g. logging)
>+
>+  intptr_t slow_inc_need_zero;  // if all the bits in slow_inc_need_zero are
>+                                // zero a reader can acquire a read share by
>+                                // setting the reader bit and incrementing
>+                                // the reader count (in last waiter since
>+                                // we're now slow-path).  kMuWrWait be may
>+                                // be ignored if we already waited once.
>+};
>+
>+static const MuHowS kSharedS = {
>+    // shared or read lock
>+    kMuWriter | kMuWait | kMuEvent,   // fast_need_zero
>+    kMuReader,                        // fast_or
>+    kMuOne,                           // fast_add
>+    kMuWriter | kMuWait,              // slow_need_zero
>+    kMuSpin | kMuWriter | kMuWrWait,  // slow_inc_need_zero
>+};
>+static const MuHowS kExclusiveS = {
>+    // exclusive or write lock
>+    kMuWriter | kMuReader | kMuEvent,  // fast_need_zero
>+    kMuWriter,                         // fast_or
>+    0,                                 // fast_add
>+    kMuWriter | kMuReader,             // slow_need_zero
>+    ~static_cast<intptr_t>(0),         // slow_inc_need_zero
>+};
>+static const Mutex::MuHow kShared = &kSharedS;        // shared lock
>+static const Mutex::MuHow kExclusive = &kExclusiveS;  // exclusive lock
>+
>+#ifdef NDEBUG
>+static constexpr bool kDebugMode = false;
>+#else
>+static constexpr bool kDebugMode = true;
>+#endif
>+
>+#ifdef THREAD_SANITIZER
>+static unsigned TsanFlags(Mutex::MuHow how) {
>+  return how == kShared ? __tsan_mutex_read_lock : 0;
>+}
>+#endif
>+
>+static bool DebugOnlyIsExiting() {
>+  return false;
>+}
>+
>+Mutex::~Mutex() {
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  if ((v & kMuEvent) != 0 && !DebugOnlyIsExiting()) {
>+    ForgetSynchEvent(&this->mu_, kMuEvent, kMuSpin);
>+  }
>+  if (kDebugMode) {
>+    this->ForgetDeadlockInfo();
>+  }
>+  ABSL_TSAN_MUTEX_DESTROY(this, __tsan_mutex_not_static);
>+}
>+
>+void Mutex::EnableDebugLog(const char *name) {
>+  SynchEvent *e = EnsureSynchEvent(&this->mu_, name, kMuEvent, kMuSpin);
>+  e->log = true;
>+  UnrefSynchEvent(e);
>+}
>+
>+void EnableMutexInvariantDebugging(bool enabled) {
>+  synch_check_invariants.store(enabled, std::memory_order_release);
>+}
>+
>+void Mutex::EnableInvariantDebugging(void (*invariant)(void *),
>+                                     void *arg) {
>+  if (synch_check_invariants.load(std::memory_order_acquire) &&
>+      invariant != nullptr) {
>+    SynchEvent *e = EnsureSynchEvent(&this->mu_, nullptr, kMuEvent, kMuSpin);
>+    e->invariant = invariant;
>+    e->arg = arg;
>+    UnrefSynchEvent(e);
>+  }
>+}
>+
>+void SetMutexDeadlockDetectionMode(OnDeadlockCycle mode) {
>+  synch_deadlock_detection.store(mode, std::memory_order_release);
>+}
>+
>+// Return true iff threads x and y are waiting on the same condition for the
>+// same type of lock.  Requires that x and y be waiting on the same Mutex
>+// queue.
>+static bool MuSameCondition(PerThreadSynch *x, PerThreadSynch *y) {
>+  return x->waitp->how == y->waitp->how &&
>+         Condition::GuaranteedEqual(x->waitp->cond, y->waitp->cond);
>+}
>+
>+// Given the contents of a mutex word containing a PerThreadSynch pointer,
>+// return the pointer.
>+static inline PerThreadSynch *GetPerThreadSynch(intptr_t v) {
>+  return reinterpret_cast<PerThreadSynch *>(v & kMuHigh);
>+}
>+
>+// The next several routines maintain the per-thread next and skip fields
>+// used in the Mutex waiter queue.
>+// The queue is a circular singly-linked list, of which the "head" is the
>+// last element, and head->next if the first element.
>+// The skip field has the invariant:
>+//   For thread x, x->skip is one of:
>+//     - invalid (iff x is not in a Mutex wait queue),
>+//     - null, or
>+//     - a pointer to a distinct thread waiting later in the same Mutex queue
>+//       such that all threads in [x, x->skip] have the same condition and
>+//       lock type (MuSameCondition() is true for all pairs in [x, x->skip]).
>+// In addition, if x->skip is  valid, (x->may_skip || x->skip == null)
>+//
>+// By the spec of MuSameCondition(), it is not necessary when removing the
>+// first runnable thread y from the front a Mutex queue to adjust the skip
>+// field of another thread x because if x->skip==y, x->skip must (have) become
>+// invalid before y is removed.  The function TryRemove can remove a specified
>+// thread from an arbitrary position in the queue whether runnable or not, so
>+// it fixes up skip fields that would otherwise be left dangling.
>+// The statement
>+//     if (x->may_skip && MuSameCondition(x, x->next)) { x->skip = x->next; }
>+// maintains the invariant provided x is not the last waiter in a Mutex queue
>+// The statement
>+//          if (x->skip != null) { x->skip = x->skip->skip; }
>+// maintains the invariant.
>+
>+// Returns the last thread y in a mutex waiter queue such that all threads in
>+// [x, y] inclusive share the same condition.  Sets skip fields of some threads
>+// in that range to optimize future evaluation of Skip() on x values in
>+// the range.  Requires thread x is in a mutex waiter queue.
>+// The locking is unusual.  Skip() is called under these conditions:
>+//   - spinlock is held in call from Enqueue(), with maybe_unlocking == false
>+//   - Mutex is held in call from UnlockSlow() by last unlocker, with
>+//     maybe_unlocking == true
>+//   - both Mutex and spinlock are held in call from DequeueAllWakeable() (from
>+//     UnlockSlow()) and TryRemove()
>+// These cases are mutually exclusive, so Skip() never runs concurrently
>+// with itself on the same Mutex.   The skip chain is used in these other places
>+// that cannot occur concurrently:
>+//   - FixSkip() (from TryRemove()) - spinlock and Mutex are held)
>+//   - Dequeue() (with spinlock and Mutex held)
>+//   - UnlockSlow() (with spinlock and Mutex held)
>+// A more complex case is Enqueue()
>+//   - Enqueue() (with spinlock held and maybe_unlocking == false)
>+//               This is the first case in which Skip is called, above.
>+//   - Enqueue() (without spinlock held; but queue is empty and being freshly
>+//                formed)
>+//   - Enqueue() (with spinlock held and maybe_unlocking == true)
>+// The first case has mutual exclusion, and the second isolation through
>+// working on an otherwise unreachable data structure.
>+// In the last case, Enqueue() is required to change no skip/next pointers
>+// except those in the added node and the former "head" node.  This implies
>+// that the new node is added after head, and so must be the new head or the
>+// new front of the queue.
>+static PerThreadSynch *Skip(PerThreadSynch *x) {
>+  PerThreadSynch *x0 = nullptr;
>+  PerThreadSynch *x1 = x;
>+  PerThreadSynch *x2 = x->skip;
>+  if (x2 != nullptr) {
>+    // Each iteration attempts to advance sequence (x0,x1,x2) to next sequence
>+    // such that   x1 == x0->skip && x2 == x1->skip
>+    while ((x0 = x1, x1 = x2, x2 = x2->skip) != nullptr) {
>+      x0->skip = x2;      // short-circuit skip from x0 to x2
>+    }
>+    x->skip = x1;         // short-circuit skip from x to result
>+  }
>+  return x1;
>+}
>+
>+// "ancestor" appears before "to_be_removed" in the same Mutex waiter queue.
>+// The latter is going to be removed out of order, because of a timeout.
>+// Check whether "ancestor" has a skip field pointing to "to_be_removed",
>+// and fix it if it does.
>+static void FixSkip(PerThreadSynch *ancestor, PerThreadSynch *to_be_removed) {
>+  if (ancestor->skip == to_be_removed) {  // ancestor->skip left dangling
>+    if (to_be_removed->skip != nullptr) {
>+      ancestor->skip = to_be_removed->skip;  // can skip past to_be_removed
>+    } else if (ancestor->next != to_be_removed) {  // they are not adjacent
>+      ancestor->skip = ancestor->next;             // can skip one past ancestor
>+    } else {
>+      ancestor->skip = nullptr;  // can't skip at all
>+    }
>+  }
>+}
>+
>+static void CondVarEnqueue(SynchWaitParams *waitp);
>+
>+// Enqueue thread "waitp->thread" on a waiter queue.
>+// Called with mutex spinlock held if head != nullptr
>+// If head==nullptr and waitp->cv_word==nullptr, then Enqueue() is
>+// idempotent; it alters no state associated with the existing (empty)
>+// queue.
>+//
>+// If waitp->cv_word == nullptr, queue the thread at either the front or
>+// the end (according to its priority) of the circular mutex waiter queue whose
>+// head is "head", and return the new head.  mu is the previous mutex state,
>+// which contains the reader count (perhaps adjusted for the operation in
>+// progress) if the list was empty and a read lock held, and the holder hint if
>+// the list was empty and a write lock held.  (flags & kMuIsCond) indicates
>+// whether this thread was transferred from a CondVar or is waiting for a
>+// non-trivial condition.  In this case, Enqueue() never returns nullptr
>+//
>+// If waitp->cv_word != nullptr, CondVarEnqueue() is called, and "head" is
>+// returned. This mechanism is used by CondVar to queue a thread on the
>+// condition variable queue instead of the mutex queue in implementing Wait().
>+// In this case, Enqueue() can return nullptr (if head==nullptr).
>+static PerThreadSynch *Enqueue(PerThreadSynch *head,
>+                               SynchWaitParams *waitp, intptr_t mu, int flags) {
>+  // If we have been given a cv_word, call CondVarEnqueue() and return
>+  // the previous head of the Mutex waiter queue.
>+  if (waitp->cv_word != nullptr) {
>+    CondVarEnqueue(waitp);
>+    return head;
>+  }
>+
>+  PerThreadSynch *s = waitp->thread;
>+  ABSL_RAW_CHECK(
>+      s->waitp == nullptr ||    // normal case
>+          s->waitp == waitp ||  // Fer()---transfer from condition variable
>+          s->suppress_fatal_errors,
>+      "detected illegal recursion into Mutex code");
>+  s->waitp = waitp;
>+  s->skip = nullptr;             // maintain skip invariant (see above)
>+  s->may_skip = true;            // always true on entering queue
>+  s->wake = false;               // not being woken
>+  s->cond_waiter = ((flags & kMuIsCond) != 0);
>+  if (head == nullptr) {         // s is the only waiter
>+    s->next = s;                 // it's the only entry in the cycle
>+    s->readers = mu;             // reader count is from mu word
>+    s->maybe_unlocking = false;  // no one is searching an empty list
>+    head = s;                    // s is new head
>+  } else {
>+    PerThreadSynch *enqueue_after = nullptr;  // we'll put s after this element
>+#ifdef ABSL_HAVE_PTHREAD_GETSCHEDPARAM
>+    int64_t now_cycles = base_internal::CycleClock::Now();
>+    if (s->next_priority_read_cycles < now_cycles) {
>+      // Every so often, update our idea of the thread's priority.
>+      // pthread_getschedparam() is 5% of the block/wakeup time;
>+      // base_internal::CycleClock::Now() is 0.5%.
>+      int policy;
>+      struct sched_param param;
>+      pthread_getschedparam(pthread_self(), &policy, &param);
>+      s->priority = param.sched_priority;
>+      s->next_priority_read_cycles =
>+          now_cycles +
>+          static_cast<int64_t>(base_internal::CycleClock::Frequency());
>+    }
>+    if (s->priority > head->priority) {  // s's priority is above head's
>+      // try to put s in priority-fifo order, or failing that at the front.
>+      if (!head->maybe_unlocking) {
>+        // No unlocker can be scanning the queue, so we can insert between
>+        // skip-chains, and within a skip-chain if it has the same condition as
>+        // s.  We insert in priority-fifo order, examining the end of every
>+        // skip-chain, plus every element with the same condition as s.
>+        PerThreadSynch *advance_to = head;    // next value of enqueue_after
>+        PerThreadSynch *cur;                  // successor of enqueue_after
>+        do {
>+          enqueue_after = advance_to;
>+          cur = enqueue_after->next;  // this advance ensures progress
>+          advance_to = Skip(cur);   // normally, advance to end of skip chain
>+                                    // (side-effect: optimizes skip chain)
>+          if (advance_to != cur && s->priority > advance_to->priority &&
>+              MuSameCondition(s, cur)) {
>+            // but this skip chain is not a singleton, s has higher priority
>+            // than its tail and has the same condition as the chain,
>+            // so we can insert within the skip-chain
>+            advance_to = cur;         // advance by just one
>+          }
>+        } while (s->priority <= advance_to->priority);
>+              // termination guaranteed because s->priority > head->priority
>+              // and head is the end of a skip chain
>+      } else if (waitp->how == kExclusive &&
>+                 Condition::GuaranteedEqual(waitp->cond, nullptr)) {
>+        // An unlocker could be scanning the queue, but we know it will recheck
>+        // the queue front for writers that have no condition, which is what s
>+        // is, so an insert at front is safe.
>+        enqueue_after = head;       // add after head, at front
>+      }
>+    }
>+#endif
>+    if (enqueue_after != nullptr) {
>+      s->next = enqueue_after->next;
>+      enqueue_after->next = s;
>+
>+      // enqueue_after can be: head, Skip(...), or cur.
>+      // The first two imply enqueue_after->skip == nullptr, and
>+      // the last is used only if MuSameCondition(s, cur).
>+      // We require this because clearing enqueue_after->skip
>+      // is impossible; enqueue_after's predecessors might also
>+      // incorrectly skip over s if we were to allow other
>+      // insertion points.
>+      ABSL_RAW_CHECK(
>+          enqueue_after->skip == nullptr || MuSameCondition(enqueue_after, s),
>+          "Mutex Enqueue failure");
>+
>+      if (enqueue_after != head && enqueue_after->may_skip &&
>+          MuSameCondition(enqueue_after, enqueue_after->next)) {
>+        // enqueue_after can skip to its new successor, s
>+        enqueue_after->skip = enqueue_after->next;
>+      }
>+      if (MuSameCondition(s, s->next)) {  // s->may_skip is known to be true
>+        s->skip = s->next;                // s may skip to its successor
>+      }
>+    } else {   // enqueue not done any other way, so
>+               // we're inserting s at the back
>+      // s will become new head; copy data from head into it
>+      s->next = head->next;        // add s after head
>+      head->next = s;
>+      s->readers = head->readers;  // reader count is from previous head
>+      s->maybe_unlocking = head->maybe_unlocking;  // same for unlock hint
>+      if (head->may_skip && MuSameCondition(head, s)) {
>+        // head now has successor; may skip
>+        head->skip = s;
>+      }
>+      head = s;  // s is new head
>+    }
>+  }
>+  s->state.store(PerThreadSynch::kQueued, std::memory_order_relaxed);
>+  return head;
>+}
>+
>+// Dequeue the successor pw->next of thread pw from the Mutex waiter queue
>+// whose last element is head.  The new head element is returned, or null
>+// if the list is made empty.
>+// Dequeue is called with both spinlock and Mutex held.
>+static PerThreadSynch *Dequeue(PerThreadSynch *head, PerThreadSynch *pw) {
>+  PerThreadSynch *w = pw->next;
>+  pw->next = w->next;         // snip w out of list
>+  if (head == w) {            // we removed the head
>+    head = (pw == w) ? nullptr : pw;  // either emptied list, or pw is new head
>+  } else if (pw != head && MuSameCondition(pw, pw->next)) {
>+    // pw can skip to its new successor
>+    if (pw->next->skip !=
>+        nullptr) {  // either skip to its successors skip target
>+      pw->skip = pw->next->skip;
>+    } else {                   // or to pw's successor
>+      pw->skip = pw->next;
>+    }
>+  }
>+  return head;
>+}
>+
>+// Traverse the elements [ pw->next, h] of the circular list whose last element
>+// is head.
>+// Remove all elements with wake==true and place them in the
>+// singly-linked list wake_list in the order found.   Assumes that
>+// there is only one such element if the element has how == kExclusive.
>+// Return the new head.
>+static PerThreadSynch *DequeueAllWakeable(PerThreadSynch *head,
>+                                          PerThreadSynch *pw,
>+                                          PerThreadSynch **wake_tail) {
>+  PerThreadSynch *orig_h = head;
>+  PerThreadSynch *w = pw->next;
>+  bool skipped = false;
>+  do {
>+    if (w->wake) {                    // remove this element
>+      ABSL_RAW_CHECK(pw->skip == nullptr, "bad skip in DequeueAllWakeable");
>+      // we're removing pw's successor so either pw->skip is zero or we should
>+      // already have removed pw since if pw->skip!=null, pw has the same
>+      // condition as w.
>+      head = Dequeue(head, pw);
>+      w->next = *wake_tail;           // keep list terminated
>+      *wake_tail = w;                 // add w to wake_list;
>+      wake_tail = &w->next;           // next addition to end
>+      if (w->waitp->how == kExclusive) {  // wake at most 1 writer
>+        break;
>+      }
>+    } else {                // not waking this one; skip
>+      pw = Skip(w);       // skip as much as possible
>+      skipped = true;
>+    }
>+    w = pw->next;
>+    // We want to stop processing after we've considered the original head,
>+    // orig_h.  We can't test for w==orig_h in the loop because w may skip over
>+    // it; we are guaranteed only that w's predecessor will not skip over
>+    // orig_h.  When we've considered orig_h, either we've processed it and
>+    // removed it (so orig_h != head), or we considered it and skipped it (so
>+    // skipped==true && pw == head because skipping from head always skips by
>+    // just one, leaving pw pointing at head).  So we want to
>+    // continue the loop with the negation of that expression.
>+  } while (orig_h == head && (pw != head || !skipped));
>+  return head;
>+}
>+
>+// Try to remove thread s from the list of waiters on this mutex.
>+// Does nothing if s is not on the waiter list.
>+void Mutex::TryRemove(PerThreadSynch *s) {
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  // acquire spinlock & lock
>+  if ((v & (kMuWait | kMuSpin | kMuWriter | kMuReader)) == kMuWait &&
>+      mu_.compare_exchange_strong(v, v | kMuSpin | kMuWriter,
>+                                  std::memory_order_acquire,
>+                                  std::memory_order_relaxed)) {
>+    PerThreadSynch *h = GetPerThreadSynch(v);
>+    if (h != nullptr) {
>+      PerThreadSynch *pw = h;   // pw is w's predecessor
>+      PerThreadSynch *w;
>+      if ((w = pw->next) != s) {  // search for thread,
>+        do {                      // processing at least one element
>+          if (!MuSameCondition(s, w)) {  // seeking different condition
>+            pw = Skip(w);                // so skip all that won't match
>+            // we don't have to worry about dangling skip fields
>+            // in the threads we skipped; none can point to s
>+            // because their condition differs from s
>+          } else {          // seeking same condition
>+            FixSkip(w, s);  // fix up any skip pointer from w to s
>+            pw = w;
>+          }
>+          // don't search further if we found the thread, or we're about to
>+          // process the first thread again.
>+        } while ((w = pw->next) != s && pw != h);
>+      }
>+      if (w == s) {                 // found thread; remove it
>+        // pw->skip may be non-zero here; the loop above ensured that
>+        // no ancestor of s can skip to s, so removal is safe anyway.
>+        h = Dequeue(h, pw);
>+        s->next = nullptr;
>+        s->state.store(PerThreadSynch::kAvailable, std::memory_order_release);
>+      }
>+    }
>+    intptr_t nv;
>+    do {                        // release spinlock and lock
>+      v = mu_.load(std::memory_order_relaxed);
>+      nv = v & (kMuDesig | kMuEvent);
>+      if (h != nullptr) {
>+        nv |= kMuWait | reinterpret_cast<intptr_t>(h);
>+        h->readers = 0;            // we hold writer lock
>+        h->maybe_unlocking = false;  // finished unlocking
>+      }
>+    } while (!mu_.compare_exchange_weak(v, nv,
>+                                        std::memory_order_release,
>+                                        std::memory_order_relaxed));
>+  }
>+}
>+
>+// Wait until thread "s", which must be the current thread, is removed from the
>+// this mutex's waiter queue.  If "s->waitp->timeout" has a timeout, wake up
>+// if the wait extends past the absolute time specified, even if "s" is still
>+// on the mutex queue.  In this case, remove "s" from the queue and return
>+// true, otherwise return false.
>+void Mutex::Block(PerThreadSynch *s) {
>+  while (s->state.load(std::memory_order_acquire) == PerThreadSynch::kQueued) {
>+    if (!DecrementSynchSem(this, s, s->waitp->timeout)) {
>+      // After a timeout, we go into a spin loop until we remove ourselves
>+      // from the queue, or someone else removes us.  We can't be sure to be
>+      // able to remove ourselves in a single lock acquisition because this
>+      // mutex may be held, and the holder has the right to read the centre
>+      // of the waiter queue without holding the spinlock.
>+      this->TryRemove(s);
>+      int c = 0;
>+      while (s->next != nullptr) {
>+        c = Delay(c, GENTLE);
>+        this->TryRemove(s);
>+      }
>+      if (kDebugMode) {
>+        // This ensures that we test the case that TryRemove() is called when s
>+        // is not on the queue.
>+        this->TryRemove(s);
>+      }
>+      s->waitp->timeout = KernelTimeout::Never();      // timeout is satisfied
>+      s->waitp->cond = nullptr;  // condition no longer relevant for wakeups
>+    }
>+  }
>+  ABSL_RAW_CHECK(s->waitp != nullptr || s->suppress_fatal_errors,
>+                 "detected illegal recursion in Mutex code");
>+  s->waitp = nullptr;
>+}
>+
>+// Wake thread w, and return the next thread in the list.
>+PerThreadSynch *Mutex::Wakeup(PerThreadSynch *w) {
>+  PerThreadSynch *next = w->next;
>+  w->next = nullptr;
>+  w->state.store(PerThreadSynch::kAvailable, std::memory_order_release);
>+  IncrementSynchSem(this, w);
>+
>+  return next;
>+}
>+
>+static GraphId GetGraphIdLocked(Mutex *mu)
>+    EXCLUSIVE_LOCKS_REQUIRED(deadlock_graph_mu) {
>+  if (!deadlock_graph) {  // (re)create the deadlock graph.
>+    deadlock_graph =
>+        new (base_internal::LowLevelAlloc::Alloc(sizeof(*deadlock_graph)))
>+            GraphCycles;
>+  }
>+  return deadlock_graph->GetId(mu);
>+}
>+
>+static GraphId GetGraphId(Mutex *mu) LOCKS_EXCLUDED(deadlock_graph_mu) {
>+  deadlock_graph_mu.Lock();
>+  GraphId id = GetGraphIdLocked(mu);
>+  deadlock_graph_mu.Unlock();
>+  return id;
>+}
>+
>+// Record a lock acquisition.  This is used in debug mode for deadlock
>+// detection.  The held_locks pointer points to the relevant data
>+// structure for each case.
>+static void LockEnter(Mutex* mu, GraphId id, SynchLocksHeld *held_locks) {
>+  int n = held_locks->n;
>+  int i = 0;
>+  while (i != n && held_locks->locks[i].id != id) {
>+    i++;
>+  }
>+  if (i == n) {
>+    if (n == ABSL_ARRAYSIZE(held_locks->locks)) {
>+      held_locks->overflow = true;  // lost some data
>+    } else {                        // we have room for lock
>+      held_locks->locks[i].mu = mu;
>+      held_locks->locks[i].count = 1;
>+      held_locks->locks[i].id = id;
>+      held_locks->n = n + 1;
>+    }
>+  } else {
>+    held_locks->locks[i].count++;
>+  }
>+}
>+
>+// Record a lock release.  Each call to LockEnter(mu, id, x) should be
>+// eventually followed by a call to LockLeave(mu, id, x) by the same thread.
>+// It does not process the event if is not needed when deadlock detection is
>+// disabled.
>+static void LockLeave(Mutex* mu, GraphId id, SynchLocksHeld *held_locks) {
>+  int n = held_locks->n;
>+  int i = 0;
>+  while (i != n && held_locks->locks[i].id != id) {
>+    i++;
>+  }
>+  if (i == n) {
>+    if (!held_locks->overflow) {
>+      // The deadlock id may have been reassigned after ForgetDeadlockInfo,
>+      // but in that case mu should still be present.
>+      i = 0;
>+      while (i != n && held_locks->locks[i].mu != mu) {
>+        i++;
>+      }
>+      if (i == n) {  // mu missing means releasing unheld lock
>+        SynchEvent *mu_events = GetSynchEvent(mu);
>+        ABSL_RAW_LOG(FATAL,
>+                     "thread releasing lock it does not hold: %p %s; "
>+                     ,
>+                     static_cast<void *>(mu),
>+                     mu_events == nullptr ? "" : mu_events->name);
>+      }
>+    }
>+  } else if (held_locks->locks[i].count == 1) {
>+    held_locks->n = n - 1;
>+    held_locks->locks[i] = held_locks->locks[n - 1];
>+    held_locks->locks[n - 1].id = InvalidGraphId();
>+    held_locks->locks[n - 1].mu =
>+        nullptr;  // clear mu to please the leak detector.
>+  } else {
>+    assert(held_locks->locks[i].count > 0);
>+    held_locks->locks[i].count--;
>+  }
>+}
>+
>+// Call LockEnter() if in debug mode and deadlock detection is enabled.
>+static inline void DebugOnlyLockEnter(Mutex *mu) {
>+  if (kDebugMode) {
>+    if (synch_deadlock_detection.load(std::memory_order_acquire) !=
>+        OnDeadlockCycle::kIgnore) {
>+      LockEnter(mu, GetGraphId(mu), Synch_GetAllLocks());
>+    }
>+  }
>+}
>+
>+// Call LockEnter() if in debug mode and deadlock detection is enabled.
>+static inline void DebugOnlyLockEnter(Mutex *mu, GraphId id) {
>+  if (kDebugMode) {
>+    if (synch_deadlock_detection.load(std::memory_order_acquire) !=
>+        OnDeadlockCycle::kIgnore) {
>+      LockEnter(mu, id, Synch_GetAllLocks());
>+    }
>+  }
>+}
>+
>+// Call LockLeave() if in debug mode and deadlock detection is enabled.
>+static inline void DebugOnlyLockLeave(Mutex *mu) {
>+  if (kDebugMode) {
>+    if (synch_deadlock_detection.load(std::memory_order_acquire) !=
>+        OnDeadlockCycle::kIgnore) {
>+      LockLeave(mu, GetGraphId(mu), Synch_GetAllLocks());
>+    }
>+  }
>+}
>+
>+static char *StackString(void **pcs, int n, char *buf, int maxlen,
>+                         bool symbolize) {
>+  static const int kSymLen = 200;
>+  char sym[kSymLen];
>+  int len = 0;
>+  for (int i = 0; i != n; i++) {
>+    if (symbolize) {
>+      if (!symbolizer(pcs[i], sym, kSymLen)) {
>+        sym[0] = '\0';
>+      }
>+      snprintf(buf + len, maxlen - len, "%s\t@ %p %s\n",
>+               (i == 0 ? "\n" : ""),
>+               pcs[i], sym);
>+    } else {
>+      snprintf(buf + len, maxlen - len, " %p", pcs[i]);
>+    }
>+    len += strlen(&buf[len]);
>+  }
>+  return buf;
>+}
>+
>+static char *CurrentStackString(char *buf, int maxlen, bool symbolize) {
>+  void *pcs[40];
>+  return StackString(pcs, absl::GetStackTrace(pcs, ABSL_ARRAYSIZE(pcs), 2), buf,
>+                     maxlen, symbolize);
>+}
>+
>+namespace {
>+enum { kMaxDeadlockPathLen = 10 };  // maximum length of a deadlock cycle;
>+                                    // a path this long would be remarkable
>+// Buffers required to report a deadlock.
>+// We do not allocate them on stack to avoid large stack frame.
>+struct DeadlockReportBuffers {
>+  char buf[6100];
>+  GraphId path[kMaxDeadlockPathLen];
>+};
>+
>+struct ScopedDeadlockReportBuffers {
>+  ScopedDeadlockReportBuffers() {
>+    b = reinterpret_cast<DeadlockReportBuffers *>(
>+        base_internal::LowLevelAlloc::Alloc(sizeof(*b)));
>+  }
>+  ~ScopedDeadlockReportBuffers() { base_internal::LowLevelAlloc::Free(b); }
>+  DeadlockReportBuffers *b;
>+};
>+
>+// Helper to pass to GraphCycles::UpdateStackTrace.
>+int GetStack(void** stack, int max_depth) {
>+  return absl::GetStackTrace(stack, max_depth, 3);
>+}
>+}  // anonymous namespace
>+
>+// Called in debug mode when a thread is about to acquire a lock in a way that
>+// may block.
>+static GraphId DeadlockCheck(Mutex *mu) {
>+  if (synch_deadlock_detection.load(std::memory_order_acquire) ==
>+      OnDeadlockCycle::kIgnore) {
>+    return InvalidGraphId();
>+  }
>+
>+  SynchLocksHeld *all_locks = Synch_GetAllLocks();
>+
>+  absl::base_internal::SpinLockHolder lock(&deadlock_graph_mu);
>+  const GraphId mu_id = GetGraphIdLocked(mu);
>+
>+  if (all_locks->n == 0) {
>+    // There are no other locks held. Return now so that we don't need to
>+    // call GetSynchEvent(). This way we do not record the stack trace
>+    // for this Mutex. It's ok, since if this Mutex is involved in a deadlock,
>+    // it can't always be the first lock acquired by a thread.
>+    return mu_id;
>+  }
>+
>+  // We prefer to keep stack traces that show a thread holding and acquiring
>+  // as many locks as possible.  This increases the chances that a given edge
>+  // in the acquires-before graph will be represented in the stack traces
>+  // recorded for the locks.
>+  deadlock_graph->UpdateStackTrace(mu_id, all_locks->n + 1, GetStack);
>+
>+  // For each other mutex already held by this thread:
>+  for (int i = 0; i != all_locks->n; i++) {
>+    const GraphId other_node_id = all_locks->locks[i].id;
>+    const Mutex *other =
>+        static_cast<const Mutex *>(deadlock_graph->Ptr(other_node_id));
>+    if (other == nullptr) {
>+      // Ignore stale lock
>+      continue;
>+    }
>+
>+    // Add the acquired-before edge to the graph.
>+    if (!deadlock_graph->InsertEdge(other_node_id, mu_id)) {
>+      ScopedDeadlockReportBuffers scoped_buffers;
>+      DeadlockReportBuffers *b = scoped_buffers.b;
>+      static int number_of_reported_deadlocks = 0;
>+      number_of_reported_deadlocks++;
>+      // Symbolize only 2 first deadlock report to avoid huge slowdowns.
>+      bool symbolize = number_of_reported_deadlocks <= 2;
>+      ABSL_RAW_LOG(ERROR, "Potential Mutex deadlock: %s",
>+                   CurrentStackString(b->buf, sizeof (b->buf), symbolize));
>+      int len = 0;
>+      for (int j = 0; j != all_locks->n; j++) {
>+        void* pr = deadlock_graph->Ptr(all_locks->locks[j].id);
>+        if (pr != nullptr) {
>+          snprintf(b->buf + len, sizeof (b->buf) - len, " %p", pr);
>+          len += static_cast<int>(strlen(&b->buf[len]));
>+        }
>+      }
>+      ABSL_RAW_LOG(ERROR, "Acquiring %p    Mutexes held: %s",
>+                   static_cast<void *>(mu), b->buf);
>+      ABSL_RAW_LOG(ERROR, "Cycle: ");
>+      int path_len = deadlock_graph->FindPath(
>+          mu_id, other_node_id, ABSL_ARRAYSIZE(b->path), b->path);
>+      for (int j = 0; j != path_len; j++) {
>+        GraphId id = b->path[j];
>+        Mutex *path_mu = static_cast<Mutex *>(deadlock_graph->Ptr(id));
>+        if (path_mu == nullptr) continue;
>+        void** stack;
>+        int depth = deadlock_graph->GetStackTrace(id, &stack);
>+        snprintf(b->buf, sizeof(b->buf),
>+                 "mutex@%p stack: ", static_cast<void *>(path_mu));
>+        StackString(stack, depth, b->buf + strlen(b->buf),
>+                    static_cast<int>(sizeof(b->buf) - strlen(b->buf)),
>+                    symbolize);
>+        ABSL_RAW_LOG(ERROR, "%s", b->buf);
>+      }
>+      if (synch_deadlock_detection.load(std::memory_order_acquire) ==
>+          OnDeadlockCycle::kAbort) {
>+        deadlock_graph_mu.Unlock();  // avoid deadlock in fatal sighandler
>+        ABSL_RAW_LOG(FATAL, "dying due to potential deadlock");
>+        return mu_id;
>+      }
>+      break;   // report at most one potential deadlock per acquisition
>+    }
>+  }
>+
>+  return mu_id;
>+}
>+
>+// Invoke DeadlockCheck() iff we're in debug mode and
>+// deadlock checking has been enabled.
>+static inline GraphId DebugOnlyDeadlockCheck(Mutex *mu) {
>+  if (kDebugMode && synch_deadlock_detection.load(std::memory_order_acquire) !=
>+                        OnDeadlockCycle::kIgnore) {
>+    return DeadlockCheck(mu);
>+  } else {
>+    return InvalidGraphId();
>+  }
>+}
>+
>+void Mutex::ForgetDeadlockInfo() {
>+  if (kDebugMode && synch_deadlock_detection.load(std::memory_order_acquire) !=
>+                        OnDeadlockCycle::kIgnore) {
>+    deadlock_graph_mu.Lock();
>+    if (deadlock_graph != nullptr) {
>+      deadlock_graph->RemoveNode(this);
>+    }
>+    deadlock_graph_mu.Unlock();
>+  }
>+}
>+
>+void Mutex::AssertNotHeld() const {
>+  // We have the data to allow this check only if in debug mode and deadlock
>+  // detection is enabled.
>+  if (kDebugMode &&
>+      (mu_.load(std::memory_order_relaxed) & (kMuWriter | kMuReader)) != 0 &&
>+      synch_deadlock_detection.load(std::memory_order_acquire) !=
>+          OnDeadlockCycle::kIgnore) {
>+    GraphId id = GetGraphId(const_cast<Mutex *>(this));
>+    SynchLocksHeld *locks = Synch_GetAllLocks();
>+    for (int i = 0; i != locks->n; i++) {
>+      if (locks->locks[i].id == id) {
>+        SynchEvent *mu_events = GetSynchEvent(this);
>+        ABSL_RAW_LOG(FATAL, "thread should not hold mutex %p %s",
>+                     static_cast<const void *>(this),
>+                     (mu_events == nullptr ? "" : mu_events->name));
>+      }
>+    }
>+  }
>+}
>+
>+// Attempt to acquire *mu, and return whether successful.  The implementation
>+// may spin for a short while if the lock cannot be acquired immediately.
>+static bool TryAcquireWithSpinning(std::atomic<intptr_t>* mu) {
>+  int c = mutex_globals.spinloop_iterations;
>+  int result = -1;  // result of operation:  0=false, 1=true, -1=unknown
>+
>+  do {  // do/while somewhat faster on AMD
>+    intptr_t v = mu->load(std::memory_order_relaxed);
>+    if ((v & (kMuReader|kMuEvent)) != 0) {  // a reader or tracing -> give up
>+      result = 0;
>+    } else if (((v & kMuWriter) == 0) &&  // no holder -> try to acquire
>+               mu->compare_exchange_strong(v, kMuWriter | v,
>+                                           std::memory_order_acquire,
>+                                           std::memory_order_relaxed)) {
>+      result = 1;
>+    }
>+  } while (result == -1 && --c > 0);
>+  return result == 1;
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) void Mutex::Lock() {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, 0);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  // try fast acquire, then spin loop
>+  if ((v & (kMuWriter | kMuReader | kMuEvent)) != 0 ||
>+      !mu_.compare_exchange_strong(v, kMuWriter | v,
>+                                   std::memory_order_acquire,
>+                                   std::memory_order_relaxed)) {
>+    // try spin acquire, then slow loop
>+    if (!TryAcquireWithSpinning(&this->mu_)) {
>+      this->LockSlow(kExclusive, nullptr, 0);
>+    }
>+  }
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, 0, 0);
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) void Mutex::ReaderLock() {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_read_lock);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  // try fast acquire, then slow loop
>+  if ((v & (kMuWriter | kMuWait | kMuEvent)) != 0 ||
>+      !mu_.compare_exchange_strong(v, (kMuReader | v) + kMuOne,
>+                                   std::memory_order_acquire,
>+                                   std::memory_order_relaxed)) {
>+    this->LockSlow(kShared, nullptr, 0);
>+  }
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, __tsan_mutex_read_lock, 0);
>+}
>+
>+void Mutex::LockWhen(const Condition &cond) {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, 0);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  this->LockSlow(kExclusive, &cond, 0);
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, 0, 0);
>+}
>+
>+bool Mutex::LockWhenWithTimeout(const Condition &cond, absl::Duration timeout) {
>+  return LockWhenWithDeadline(cond, DeadlineFromTimeout(timeout));
>+}
>+
>+bool Mutex::LockWhenWithDeadline(const Condition &cond, absl::Time deadline) {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, 0);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  bool res = LockSlowWithDeadline(kExclusive, &cond,
>+                                  KernelTimeout(deadline), 0);
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, 0, 0);
>+  return res;
>+}
>+
>+void Mutex::ReaderLockWhen(const Condition &cond) {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_read_lock);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  this->LockSlow(kShared, &cond, 0);
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, __tsan_mutex_read_lock, 0);
>+}
>+
>+bool Mutex::ReaderLockWhenWithTimeout(const Condition &cond,
>+                                      absl::Duration timeout) {
>+  return ReaderLockWhenWithDeadline(cond, DeadlineFromTimeout(timeout));
>+}
>+
>+bool Mutex::ReaderLockWhenWithDeadline(const Condition &cond,
>+                                       absl::Time deadline) {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_read_lock);
>+  GraphId id = DebugOnlyDeadlockCheck(this);
>+  bool res = LockSlowWithDeadline(kShared, &cond, KernelTimeout(deadline), 0);
>+  DebugOnlyLockEnter(this, id);
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, __tsan_mutex_read_lock, 0);
>+  return res;
>+}
>+
>+void Mutex::Await(const Condition &cond) {
>+  if (cond.Eval()) {    // condition already true; nothing to do
>+    if (kDebugMode) {
>+      this->AssertReaderHeld();
>+    }
>+  } else {              // normal case
>+    ABSL_RAW_CHECK(this->AwaitCommon(cond, KernelTimeout::Never()),
>+                   "condition untrue on return from Await");
>+  }
>+}
>+
>+bool Mutex::AwaitWithTimeout(const Condition &cond, absl::Duration timeout) {
>+  return AwaitWithDeadline(cond, DeadlineFromTimeout(timeout));
>+}
>+
>+bool Mutex::AwaitWithDeadline(const Condition &cond, absl::Time deadline) {
>+  if (cond.Eval()) {      // condition already true; nothing to do
>+    if (kDebugMode) {
>+      this->AssertReaderHeld();
>+    }
>+    return true;
>+  }
>+
>+  KernelTimeout t{deadline};
>+  bool res = this->AwaitCommon(cond, t);
>+  ABSL_RAW_CHECK(res || t.has_timeout(),
>+                 "condition untrue on return from Await");
>+  return res;
>+}
>+
>+bool Mutex::AwaitCommon(const Condition &cond, KernelTimeout t) {
>+  this->AssertReaderHeld();
>+  MuHow how =
>+      (mu_.load(std::memory_order_relaxed) & kMuWriter) ? kExclusive : kShared;
>+  ABSL_TSAN_MUTEX_PRE_UNLOCK(this, TsanFlags(how));
>+  SynchWaitParams waitp(
>+      how, &cond, t, nullptr /*no cvmu*/, Synch_GetPerThreadAnnotated(this),
>+      nullptr /*no cv_word*/);
>+  int flags = kMuHasBlocked;
>+  if (!Condition::GuaranteedEqual(&cond, nullptr)) {
>+    flags |= kMuIsCond;
>+  }
>+  this->UnlockSlow(&waitp);
>+  this->Block(waitp.thread);
>+  ABSL_TSAN_MUTEX_POST_UNLOCK(this, TsanFlags(how));
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, TsanFlags(how));
>+  this->LockSlowLoop(&waitp, flags);
>+  bool res = waitp.cond != nullptr ||  // => cond known true from LockSlowLoop
>+             cond.Eval();
>+  ABSL_TSAN_MUTEX_POST_LOCK(this, TsanFlags(how), 0);
>+  return res;
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) bool Mutex::TryLock() {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_try_lock);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  if ((v & (kMuWriter | kMuReader | kMuEvent)) == 0 &&  // try fast acquire
>+      mu_.compare_exchange_strong(v, kMuWriter | v,
>+                                  std::memory_order_acquire,
>+                                  std::memory_order_relaxed)) {
>+    DebugOnlyLockEnter(this);
>+    ABSL_TSAN_MUTEX_POST_LOCK(this, __tsan_mutex_try_lock, 0);
>+    return true;
>+  }
>+  if ((v & kMuEvent) != 0) {              // we're recording events
>+    if ((v & kExclusive->slow_need_zero) == 0 &&  // try fast acquire
>+        mu_.compare_exchange_strong(
>+            v, (kExclusive->fast_or | v) + kExclusive->fast_add,
>+            std::memory_order_acquire, std::memory_order_relaxed)) {
>+      DebugOnlyLockEnter(this);
>+      PostSynchEvent(this, SYNCH_EV_TRYLOCK_SUCCESS);
>+      ABSL_TSAN_MUTEX_POST_LOCK(this, __tsan_mutex_try_lock, 0);
>+      return true;
>+    } else {
>+      PostSynchEvent(this, SYNCH_EV_TRYLOCK_FAILED);
>+    }
>+  }
>+  ABSL_TSAN_MUTEX_POST_LOCK(
>+      this, __tsan_mutex_try_lock | __tsan_mutex_try_lock_failed, 0);
>+  return false;
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) bool Mutex::ReaderTryLock() {
>+  ABSL_TSAN_MUTEX_PRE_LOCK(this,
>+                           __tsan_mutex_read_lock | __tsan_mutex_try_lock);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  // The while-loops (here and below) iterate only if the mutex word keeps
>+  // changing (typically because the reader count changes) under the CAS.  We
>+  // limit the number of attempts to avoid having to think about livelock.
>+  int loop_limit = 5;
>+  while ((v & (kMuWriter|kMuWait|kMuEvent)) == 0 && loop_limit != 0) {
>+    if (mu_.compare_exchange_strong(v, (kMuReader | v) + kMuOne,
>+                                    std::memory_order_acquire,
>+                                    std::memory_order_relaxed)) {
>+      DebugOnlyLockEnter(this);
>+      ABSL_TSAN_MUTEX_POST_LOCK(
>+          this, __tsan_mutex_read_lock | __tsan_mutex_try_lock, 0);
>+      return true;
>+    }
>+    loop_limit--;
>+    v = mu_.load(std::memory_order_relaxed);
>+  }
>+  if ((v & kMuEvent) != 0) {   // we're recording events
>+    loop_limit = 5;
>+    while ((v & kShared->slow_need_zero) == 0 && loop_limit != 0) {
>+      if (mu_.compare_exchange_strong(v, (kMuReader | v) + kMuOne,
>+                                      std::memory_order_acquire,
>+                                      std::memory_order_relaxed)) {
>+        DebugOnlyLockEnter(this);
>+        PostSynchEvent(this, SYNCH_EV_READERTRYLOCK_SUCCESS);
>+        ABSL_TSAN_MUTEX_POST_LOCK(
>+            this, __tsan_mutex_read_lock | __tsan_mutex_try_lock, 0);
>+        return true;
>+      }
>+      loop_limit--;
>+      v = mu_.load(std::memory_order_relaxed);
>+    }
>+    if ((v & kMuEvent) != 0) {
>+      PostSynchEvent(this, SYNCH_EV_READERTRYLOCK_FAILED);
>+    }
>+  }
>+  ABSL_TSAN_MUTEX_POST_LOCK(this,
>+                            __tsan_mutex_read_lock | __tsan_mutex_try_lock |
>+                                __tsan_mutex_try_lock_failed,
>+                            0);
>+  return false;
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) void Mutex::Unlock() {
>+  ABSL_TSAN_MUTEX_PRE_UNLOCK(this, 0);
>+  DebugOnlyLockLeave(this);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+
>+  if (kDebugMode && ((v & (kMuWriter | kMuReader)) != kMuWriter)) {
>+    ABSL_RAW_LOG(FATAL, "Mutex unlocked when destroyed or not locked: v=0x%x",
>+                 static_cast<unsigned>(v));
>+  }
>+
>+  // should_try_cas is whether we'll try a compare-and-swap immediately.
>+  // NOTE: optimized out when kDebugMode is false.
>+  bool should_try_cas = ((v & (kMuEvent | kMuWriter)) == kMuWriter &&
>+                          (v & (kMuWait | kMuDesig)) != kMuWait);
>+  // But, we can use an alternate computation of it, that compilers
>+  // currently don't find on their own.  When that changes, this function
>+  // can be simplified.
>+  intptr_t x = (v ^ (kMuWriter | kMuWait)) & (kMuWriter | kMuEvent);
>+  intptr_t y = (v ^ (kMuWriter | kMuWait)) & (kMuWait | kMuDesig);
>+  // Claim: "x == 0 && y > 0" is equal to should_try_cas.
>+  // Also, because kMuWriter and kMuEvent exceed kMuDesig and kMuWait,
>+  // all possible non-zero values for x exceed all possible values for y.
>+  // Therefore, (x == 0 && y > 0) == (x < y).
>+  if (kDebugMode && should_try_cas != (x < y)) {
>+    // We would usually use PRIdPTR here, but is not correctly implemented
>+    // within the android toolchain.
>+    ABSL_RAW_LOG(FATAL, "internal logic error %llx %llx %llx\n",
>+                 static_cast<long long>(v), static_cast<long long>(x),
>+                 static_cast<long long>(y));
>+  }
>+  if (x < y &&
>+      mu_.compare_exchange_strong(v, v & ~(kMuWrWait | kMuWriter),
>+                                  std::memory_order_release,
>+                                  std::memory_order_relaxed)) {
>+    // fast writer release (writer with no waiters or with designated waker)
>+  } else {
>+    this->UnlockSlow(nullptr /*no waitp*/);  // take slow path
>+  }
>+  ABSL_TSAN_MUTEX_POST_UNLOCK(this, 0);
>+}
>+
>+// Requires v to represent a reader-locked state.
>+static bool ExactlyOneReader(intptr_t v) {
>+  assert((v & (kMuWriter|kMuReader)) == kMuReader);
>+  assert((v & kMuHigh) != 0);
>+  // The more straightforward "(v & kMuHigh) == kMuOne" also works, but
>+  // on some architectures the following generates slightly smaller code.
>+  // It may be faster too.
>+  constexpr intptr_t kMuMultipleWaitersMask = kMuHigh ^ kMuOne;
>+  return (v & kMuMultipleWaitersMask) == 0;
>+}
>+
>+ABSL_XRAY_LOG_ARGS(1) void Mutex::ReaderUnlock() {
>+  ABSL_TSAN_MUTEX_PRE_UNLOCK(this, __tsan_mutex_read_lock);
>+  DebugOnlyLockLeave(this);
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  assert((v & (kMuWriter|kMuReader)) == kMuReader);
>+  if ((v & (kMuReader|kMuWait|kMuEvent)) == kMuReader) {
>+    // fast reader release (reader with no waiters)
>+    intptr_t clear = ExactlyOneReader(v) ? kMuReader|kMuOne : kMuOne;
>+    if (mu_.compare_exchange_strong(v, v - clear,
>+                                    std::memory_order_release,
>+                                    std::memory_order_relaxed)) {
>+      ABSL_TSAN_MUTEX_POST_UNLOCK(this, __tsan_mutex_read_lock);
>+      return;
>+    }
>+  }
>+  this->UnlockSlow(nullptr /*no waitp*/);  // take slow path
>+  ABSL_TSAN_MUTEX_POST_UNLOCK(this, __tsan_mutex_read_lock);
>+}
>+
>+// The zap_desig_waker bitmask is used to clear the designated waker flag in
>+// the mutex if this thread has blocked, and therefore may be the designated
>+// waker.
>+static const intptr_t zap_desig_waker[] = {
>+    ~static_cast<intptr_t>(0),  // not blocked
>+    ~static_cast<intptr_t>(
>+        kMuDesig)  // blocked; turn off the designated waker bit
>+};
>+
>+// The ignore_waiting_writers bitmask is used to ignore the existence
>+// of waiting writers if a reader that has already blocked once
>+// wakes up.
>+static const intptr_t ignore_waiting_writers[] = {
>+    ~static_cast<intptr_t>(0),  // not blocked
>+    ~static_cast<intptr_t>(
>+        kMuWrWait)  // blocked; pretend there are no waiting writers
>+};
>+
>+// Internal version of LockWhen().  See LockSlowWithDeadline()
>+void Mutex::LockSlow(MuHow how, const Condition *cond, int flags) {
>+  ABSL_RAW_CHECK(
>+      this->LockSlowWithDeadline(how, cond, KernelTimeout::Never(), flags),
>+      "condition untrue on return from LockSlow");
>+}
>+
>+// Compute cond->Eval() and tell race detectors that we do it under mutex mu.
>+static inline bool EvalConditionAnnotated(const Condition *cond, Mutex *mu,
>+                                          bool locking, Mutex::MuHow how) {
>+  // Delicate annotation dance.
>+  // We are currently inside of read/write lock/unlock operation.
>+  // All memory accesses are ignored inside of mutex operations + for unlock
>+  // operation tsan considers that we've already released the mutex.
>+  bool res = false;
>+  if (locking) {
>+    // For lock we pretend that we have finished the operation,
>+    // evaluate the predicate, then unlock the mutex and start locking it again
>+    // to match the annotation at the end of outer lock operation.
>+    // Note: we can't simply do POST_LOCK, Eval, PRE_LOCK, because then tsan
>+    // will think the lock acquisition is recursive which will trigger
>+    // deadlock detector.
>+    ABSL_TSAN_MUTEX_POST_LOCK(mu, TsanFlags(how), 0);
>+    res = cond->Eval();
>+    ABSL_TSAN_MUTEX_PRE_UNLOCK(mu, TsanFlags(how));
>+    ABSL_TSAN_MUTEX_POST_UNLOCK(mu, TsanFlags(how));
>+    ABSL_TSAN_MUTEX_PRE_LOCK(mu, TsanFlags(how));
>+  } else {
>+    // Similarly, for unlock we pretend that we have unlocked the mutex,
>+    // lock the mutex, evaluate the predicate, and start unlocking it again
>+    // to match the annotation at the end of outer unlock operation.
>+    ABSL_TSAN_MUTEX_POST_UNLOCK(mu, TsanFlags(how));
>+    ABSL_TSAN_MUTEX_PRE_LOCK(mu, TsanFlags(how));
>+    ABSL_TSAN_MUTEX_POST_LOCK(mu, TsanFlags(how), 0);
>+    res = cond->Eval();
>+    ABSL_TSAN_MUTEX_PRE_UNLOCK(mu, TsanFlags(how));
>+  }
>+  // Prevent unused param warnings in non-TSAN builds.
>+  static_cast<void>(mu);
>+  static_cast<void>(how);
>+  return res;
>+}
>+
>+// Compute cond->Eval() hiding it from race detectors.
>+// We are hiding it because inside of UnlockSlow we can evaluate a predicate
>+// that was just added by a concurrent Lock operation; Lock adds the predicate
>+// to the internal Mutex list without actually acquiring the Mutex
>+// (it only acquires the internal spinlock, which is rightfully invisible for
>+// tsan). As the result there is no tsan-visible synchronization between the
>+// addition and this thread. So if we would enable race detection here,
>+// it would race with the predicate initialization.
>+static inline bool EvalConditionIgnored(Mutex *mu, const Condition *cond) {
>+  // Memory accesses are already ignored inside of lock/unlock operations,
>+  // but synchronization operations are also ignored. When we evaluate the
>+  // predicate we must ignore only memory accesses but not synchronization,
>+  // because missed synchronization can lead to false reports later.
>+  // So we "divert" (which un-ignores both memory accesses and synchronization)
>+  // and then separately turn on ignores of memory accesses.
>+  ABSL_TSAN_MUTEX_PRE_DIVERT(mu, 0);
>+  ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN();
>+  bool res = cond->Eval();
>+  ABSL_ANNOTATE_IGNORE_READS_AND_WRITES_END();
>+  ABSL_TSAN_MUTEX_POST_DIVERT(mu, 0);
>+  static_cast<void>(mu);  // Prevent unused param warning in non-TSAN builds.
>+  return res;
>+}
>+
>+// Internal equivalent of *LockWhenWithDeadline(), where
>+//   "t" represents the absolute timeout; !t.has_timeout() means "forever".
>+//   "how" is "kShared" (for ReaderLockWhen) or "kExclusive" (for LockWhen)
>+// In flags, bits are ored together:
>+// - kMuHasBlocked indicates that the client has already blocked on the call so
>+//   the designated waker bit must be cleared and waiting writers should not
>+//   obstruct this call
>+// - kMuIsCond indicates that this is a conditional acquire (condition variable,
>+//   Await,  LockWhen) so contention profiling should be suppressed.
>+bool Mutex::LockSlowWithDeadline(MuHow how, const Condition *cond,
>+                                 KernelTimeout t, int flags) {
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  bool unlock = false;
>+  if ((v & how->fast_need_zero) == 0 &&  // try fast acquire
>+      mu_.compare_exchange_strong(
>+          v, (how->fast_or | (v & zap_desig_waker[flags & kMuHasBlocked])) +
>+                 how->fast_add,
>+          std::memory_order_acquire, std::memory_order_relaxed)) {
>+    if (cond == nullptr || EvalConditionAnnotated(cond, this, true, how)) {
>+      return true;
>+    }
>+    unlock = true;
>+  }
>+  SynchWaitParams waitp(
>+      how, cond, t, nullptr /*no cvmu*/, Synch_GetPerThreadAnnotated(this),
>+      nullptr /*no cv_word*/);
>+  if (!Condition::GuaranteedEqual(cond, nullptr)) {
>+    flags |= kMuIsCond;
>+  }
>+  if (unlock) {
>+    this->UnlockSlow(&waitp);
>+    this->Block(waitp.thread);
>+    flags |= kMuHasBlocked;
>+  }
>+  this->LockSlowLoop(&waitp, flags);
>+  return waitp.cond != nullptr ||  // => cond known true from LockSlowLoop
>+         cond == nullptr || EvalConditionAnnotated(cond, this, true, how);
>+}
>+
>+// RAW_CHECK_FMT() takes a condition, a printf-style format std::string, and
>+// the printf-style argument list.   The format std::string must be a literal.
>+// Arguments after the first are not evaluated unless the condition is true.
>+#define RAW_CHECK_FMT(cond, ...)                                   \
>+  do {                                                             \
>+    if (ABSL_PREDICT_FALSE(!(cond))) {                             \
>+      ABSL_RAW_LOG(FATAL, "Check " #cond " failed: " __VA_ARGS__); \
>+    }                                                              \
>+  } while (0)
>+
>+static void CheckForMutexCorruption(intptr_t v, const char* label) {
>+  // Test for either of two situations that should not occur in v:
>+  //   kMuWriter and kMuReader
>+  //   kMuWrWait and !kMuWait
>+  const intptr_t w = v ^ kMuWait;
>+  // By flipping that bit, we can now test for:
>+  //   kMuWriter and kMuReader in w
>+  //   kMuWrWait and kMuWait in w
>+  // We've chosen these two pairs of values to be so that they will overlap,
>+  // respectively, when the word is left shifted by three.  This allows us to
>+  // save a branch in the common (correct) case of them not being coincident.
>+  static_assert(kMuReader << 3 == kMuWriter, "must match");
>+  static_assert(kMuWait << 3 == kMuWrWait, "must match");
>+  if (ABSL_PREDICT_TRUE((w & (w << 3) & (kMuWriter | kMuWrWait)) == 0)) return;
>+  RAW_CHECK_FMT((v & (kMuWriter | kMuReader)) != (kMuWriter | kMuReader),
>+                "%s: Mutex corrupt: both reader and writer lock held: %p",
>+                label, reinterpret_cast<void *>(v));
>+  RAW_CHECK_FMT((v & (kMuWait | kMuWrWait)) != kMuWrWait,
>+                "%s: Mutex corrupt: waiting writer with no waiters: %p",
>+                label, reinterpret_cast<void *>(v));
>+  assert(false);
>+}
>+
>+void Mutex::LockSlowLoop(SynchWaitParams *waitp, int flags) {
>+  int c = 0;
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  if ((v & kMuEvent) != 0) {
>+    PostSynchEvent(this,
>+         waitp->how == kExclusive?  SYNCH_EV_LOCK: SYNCH_EV_READERLOCK);
>+  }
>+  ABSL_RAW_CHECK(
>+      waitp->thread->waitp == nullptr || waitp->thread->suppress_fatal_errors,
>+      "detected illegal recursion into Mutex code");
>+  for (;;) {
>+    v = mu_.load(std::memory_order_relaxed);
>+    CheckForMutexCorruption(v, "Lock");
>+    if ((v & waitp->how->slow_need_zero) == 0) {
>+      if (mu_.compare_exchange_strong(
>+              v, (waitp->how->fast_or |
>+                  (v & zap_desig_waker[flags & kMuHasBlocked])) +
>+                     waitp->how->fast_add,
>+              std::memory_order_acquire, std::memory_order_relaxed)) {
>+        if (waitp->cond == nullptr ||
>+            EvalConditionAnnotated(waitp->cond, this, true, waitp->how)) {
>+          break;  // we timed out, or condition true, so return
>+        }
>+        this->UnlockSlow(waitp);  // got lock but condition false
>+        this->Block(waitp->thread);
>+        flags |= kMuHasBlocked;
>+        c = 0;
>+      }
>+    } else {                      // need to access waiter list
>+      bool dowait = false;
>+      if ((v & (kMuSpin|kMuWait)) == 0) {   // no waiters
>+        // This thread tries to become the one and only waiter.
>+        PerThreadSynch *new_h = Enqueue(nullptr, waitp, v, flags);
>+        intptr_t nv = (v & zap_desig_waker[flags & kMuHasBlocked] & kMuLow) |
>+                      kMuWait;
>+        ABSL_RAW_CHECK(new_h != nullptr, "Enqueue to empty list failed");
>+        if (waitp->how == kExclusive && (v & kMuReader) != 0) {
>+          nv |= kMuWrWait;
>+        }
>+        if (mu_.compare_exchange_strong(
>+                v, reinterpret_cast<intptr_t>(new_h) | nv,
>+                std::memory_order_release, std::memory_order_relaxed)) {
>+          dowait = true;
>+        } else {            // attempted Enqueue() failed
>+          // zero out the waitp field set by Enqueue()
>+          waitp->thread->waitp = nullptr;
>+        }
>+      } else if ((v & waitp->how->slow_inc_need_zero &
>+                  ignore_waiting_writers[flags & kMuHasBlocked]) == 0) {
>+        // This is a reader that needs to increment the reader count,
>+        // but the count is currently held in the last waiter.
>+        if (mu_.compare_exchange_strong(
>+                v, (v & zap_desig_waker[flags & kMuHasBlocked]) | kMuSpin |
>+                       kMuReader,
>+                std::memory_order_acquire, std::memory_order_relaxed)) {
>+          PerThreadSynch *h = GetPerThreadSynch(v);
>+          h->readers += kMuOne;       // inc reader count in waiter
>+          do {                        // release spinlock
>+            v = mu_.load(std::memory_order_relaxed);
>+          } while (!mu_.compare_exchange_weak(v, (v & ~kMuSpin) | kMuReader,
>+                                              std::memory_order_release,
>+                                              std::memory_order_relaxed));
>+          if (waitp->cond == nullptr ||
>+              EvalConditionAnnotated(waitp->cond, this, true, waitp->how)) {
>+            break;  // we timed out, or condition true, so return
>+          }
>+          this->UnlockSlow(waitp);           // got lock but condition false
>+          this->Block(waitp->thread);
>+          flags |= kMuHasBlocked;
>+          c = 0;
>+        }
>+      } else if ((v & kMuSpin) == 0 &&  // attempt to queue ourselves
>+                 mu_.compare_exchange_strong(
>+                     v, (v & zap_desig_waker[flags & kMuHasBlocked]) | kMuSpin |
>+                            kMuWait,
>+                     std::memory_order_acquire, std::memory_order_relaxed)) {
>+        PerThreadSynch *h = GetPerThreadSynch(v);
>+        PerThreadSynch *new_h = Enqueue(h, waitp, v, flags);
>+        intptr_t wr_wait = 0;
>+        ABSL_RAW_CHECK(new_h != nullptr, "Enqueue to list failed");
>+        if (waitp->how == kExclusive && (v & kMuReader) != 0) {
>+          wr_wait = kMuWrWait;      // give priority to a waiting writer
>+        }
>+        do {                        // release spinlock
>+          v = mu_.load(std::memory_order_relaxed);
>+        } while (!mu_.compare_exchange_weak(
>+            v, (v & (kMuLow & ~kMuSpin)) | kMuWait | wr_wait |
>+            reinterpret_cast<intptr_t>(new_h),
>+            std::memory_order_release, std::memory_order_relaxed));
>+        dowait = true;
>+      }
>+      if (dowait) {
>+        this->Block(waitp->thread);  // wait until removed from list or timeout
>+        flags |= kMuHasBlocked;
>+        c = 0;
>+      }
>+    }
>+    ABSL_RAW_CHECK(
>+        waitp->thread->waitp == nullptr || waitp->thread->suppress_fatal_errors,
>+        "detected illegal recursion into Mutex code");
>+    c = Delay(c, GENTLE);          // delay, then try again
>+  }
>+  ABSL_RAW_CHECK(
>+      waitp->thread->waitp == nullptr || waitp->thread->suppress_fatal_errors,
>+      "detected illegal recursion into Mutex code");
>+  if ((v & kMuEvent) != 0) {
>+    PostSynchEvent(this,
>+                   waitp->how == kExclusive? SYNCH_EV_LOCK_RETURNING :
>+                                      SYNCH_EV_READERLOCK_RETURNING);
>+  }
>+}
>+
>+// Unlock this mutex, which is held by the current thread.
>+// If waitp is non-zero, it must be the wait parameters for the current thread
>+// which holds the lock but is not runnable because its condition is false
>+// or it n the process of blocking on a condition variable; it must requeue
>+// itself on the mutex/condvar to wait for its condition to become true.
>+void Mutex::UnlockSlow(SynchWaitParams *waitp) {
>+  intptr_t v = mu_.load(std::memory_order_relaxed);
>+  this->AssertReaderHeld();
>+  CheckForMutexCorruption(v, "Unlock");
>+  if ((v & kMuEvent) != 0) {
>+    PostSynchEvent(this,
>+                (v & kMuWriter) != 0? SYNCH_EV_UNLOCK: SYNCH_EV_READERUNLOCK);
>+  }
>+  int c = 0;
>+  // the waiter under consideration to wake, or zero
>+  PerThreadSynch *w = nullptr;
>+  // the predecessor to w or zero
>+  PerThreadSynch *pw = nullptr;
>+  // head of the list searched previously, or zero
>+  PerThreadSynch *old_h = nullptr;
>+  // a condition that's known to be false.
>+  const Condition *known_false = nullptr;
>+  PerThreadSynch *wake_list = kPerThreadSynchNull;   // list of threads to wake
>+  intptr_t wr_wait = 0;        // set to kMuWrWait if we wake a reader and a
>+                               // later writer could have acquired the lock
>+                               // (starvation avoidance)
>+  ABSL_RAW_CHECK(waitp == nullptr || waitp->thread->waitp == nullptr ||
>+                     waitp->thread->suppress_fatal_errors,
>+                 "detected illegal recursion into Mutex code");
>+  // This loop finds threads wake_list to wakeup if any, and removes them from
>+  // the list of waiters.  In addition, it places waitp.thread on the queue of
>+  // waiters if waitp is non-zero.
>+  for (;;) {
>+    v = mu_.load(std::memory_order_relaxed);
>+    if ((v & kMuWriter) != 0 && (v & (kMuWait | kMuDesig)) != kMuWait &&
>+        waitp == nullptr) {
>+      // fast writer release (writer with no waiters or with designated waker)
>+      if (mu_.compare_exchange_strong(v, v & ~(kMuWrWait | kMuWriter),
>+                                      std::memory_order_release,
>+                                      std::memory_order_relaxed)) {
>+        return;
>+      }
>+    } else if ((v & (kMuReader | kMuWait)) == kMuReader && waitp == nullptr) {
>+      // fast reader release (reader with no waiters)
>+      intptr_t clear = ExactlyOneReader(v) ? kMuReader | kMuOne : kMuOne;
>+      if (mu_.compare_exchange_strong(v, v - clear,
>+                                      std::memory_order_release,
>+                                      std::memory_order_relaxed)) {
>+        return;
>+      }
>+    } else if ((v & kMuSpin) == 0 &&  // attempt to get spinlock
>+               mu_.compare_exchange_strong(v, v | kMuSpin,
>+                                           std::memory_order_acquire,
>+                                           std::memory_order_relaxed)) {
>+      if ((v & kMuWait) == 0) {       // no one to wake
>+        intptr_t nv;
>+        bool do_enqueue = true;  // always Enqueue() the first time
>+        ABSL_RAW_CHECK(waitp != nullptr,
>+                       "UnlockSlow is confused");  // about to sleep
>+        do {    // must loop to release spinlock as reader count may change
>+          v = mu_.load(std::memory_order_relaxed);
>+          // decrement reader count if there are readers
>+          intptr_t new_readers = (v >= kMuOne)?  v - kMuOne : v;
>+          PerThreadSynch *new_h = nullptr;
>+          if (do_enqueue) {
>+            // If we are enqueuing on a CondVar (waitp->cv_word != nullptr) then
>+            // we must not retry here.  The initial attempt will always have
>+            // succeeded, further attempts would enqueue us against *this due to
>+            // Fer() handling.
>+            do_enqueue = (waitp->cv_word == nullptr);
>+            new_h = Enqueue(nullptr, waitp, new_readers, kMuIsCond);
>+          }
>+          intptr_t clear = kMuWrWait | kMuWriter;  // by default clear write bit
>+          if ((v & kMuWriter) == 0 && ExactlyOneReader(v)) {  // last reader
>+            clear = kMuWrWait | kMuReader;                    // clear read bit
>+          }
>+          nv = (v & kMuLow & ~clear & ~kMuSpin);
>+          if (new_h != nullptr) {
>+            nv |= kMuWait | reinterpret_cast<intptr_t>(new_h);
>+          } else {  // new_h could be nullptr if we queued ourselves on a
>+                    // CondVar
>+            // In that case, we must place the reader count back in the mutex
>+            // word, as Enqueue() did not store it in the new waiter.
>+            nv |= new_readers & kMuHigh;
>+          }
>+          // release spinlock & our lock; retry if reader-count changed
>+          // (writer count cannot change since we hold lock)
>+        } while (!mu_.compare_exchange_weak(v, nv,
>+                                            std::memory_order_release,
>+                                            std::memory_order_relaxed));
>+        break;
>+      }
>+
>+      // There are waiters.
>+      // Set h to the head of the circular waiter list.
>+      PerThreadSynch *h = GetPerThreadSynch(v);
>+      if ((v & kMuReader) != 0 && (h->readers & kMuHigh) > kMuOne) {
>+        // a reader but not the last
>+        h->readers -= kMuOne;  // release our lock
>+        intptr_t nv = v;       // normally just release spinlock
>+        if (waitp != nullptr) {  // but waitp!=nullptr => must queue ourselves
>+          PerThreadSynch *new_h = Enqueue(h, waitp, v, kMuIsCond);
>+          ABSL_RAW_CHECK(new_h != nullptr,
>+                         "waiters disappeared during Enqueue()!");
>+          nv &= kMuLow;
>+          nv |= kMuWait | reinterpret_cast<intptr_t>(new_h);
>+        }
>+        mu_.store(nv, std::memory_order_release);  // release spinlock
>+        // can release with a store because there were waiters
>+        break;
>+      }
>+
>+      // Either we didn't search before, or we marked the queue
>+      // as "maybe_unlocking" and no one else should have changed it.
>+      ABSL_RAW_CHECK(old_h == nullptr || h->maybe_unlocking,
>+                     "Mutex queue changed beneath us");
>+
>+      // The lock is becoming free, and there's a waiter
>+      if (old_h != nullptr &&
>+          !old_h->may_skip) {                  // we used old_h as a terminator
>+        old_h->may_skip = true;                // allow old_h to skip once more
>+        ABSL_RAW_CHECK(old_h->skip == nullptr, "illegal skip from head");
>+        if (h != old_h && MuSameCondition(old_h, old_h->next)) {
>+          old_h->skip = old_h->next;  // old_h not head & can skip to successor
>+        }
>+      }
>+      if (h->next->waitp->how == kExclusive &&
>+          Condition::GuaranteedEqual(h->next->waitp->cond, nullptr)) {
>+        // easy case: writer with no condition; no need to search
>+        pw = h;                       // wake w, the successor of h (=pw)
>+        w = h->next;
>+        w->wake = true;
>+        // We are waking up a writer.  This writer may be racing against
>+        // an already awake reader for the lock.  We want the
>+        // writer to usually win this race,
>+        // because if it doesn't, we can potentially keep taking a reader
>+        // perpetually and writers will starve.  Worse than
>+        // that, this can also starve other readers if kMuWrWait gets set
>+        // later.
>+        wr_wait = kMuWrWait;
>+      } else if (w != nullptr && (w->waitp->how == kExclusive || h == old_h)) {
>+        // we found a waiter w to wake on a previous iteration and either it's
>+        // a writer, or we've searched the entire list so we have all the
>+        // readers.
>+        if (pw == nullptr) {  // if w's predecessor is unknown, it must be h
>+          pw = h;
>+        }
>+      } else {
>+        // At this point we don't know all the waiters to wake, and the first
>+        // waiter has a condition or is a reader.  We avoid searching over
>+        // waiters we've searched on previous iterations by starting at
>+        // old_h if it's set.  If old_h==h, there's no one to wakeup at all.
>+        if (old_h == h) {      // we've searched before, and nothing's new
>+                               // so there's no one to wake.
>+          intptr_t nv = (v & ~(kMuReader|kMuWriter|kMuWrWait));
>+          h->readers = 0;
>+          h->maybe_unlocking = false;   // finished unlocking
>+          if (waitp != nullptr) {       // we must queue ourselves and sleep
>+            PerThreadSynch *new_h = Enqueue(h, waitp, v, kMuIsCond);
>+            nv &= kMuLow;
>+            if (new_h != nullptr) {
>+              nv |= kMuWait | reinterpret_cast<intptr_t>(new_h);
>+            }  // else new_h could be nullptr if we queued ourselves on a
>+               // CondVar
>+          }
>+          // release spinlock & lock
>+          // can release with a store because there were waiters
>+          mu_.store(nv, std::memory_order_release);
>+          break;
>+        }
>+
>+        // set up to walk the list
>+        PerThreadSynch *w_walk;   // current waiter during list walk
>+        PerThreadSynch *pw_walk;  // previous waiter during list walk
>+        if (old_h != nullptr) {  // we've searched up to old_h before
>+          pw_walk = old_h;
>+          w_walk = old_h->next;
>+        } else {            // no prior search, start at beginning
>+          pw_walk =
>+              nullptr;  // h->next's predecessor may change; don't record it
>+          w_walk = h->next;
>+        }
>+
>+        h->may_skip = false;  // ensure we never skip past h in future searches
>+                              // even if other waiters are queued after it.
>+        ABSL_RAW_CHECK(h->skip == nullptr, "illegal skip from head");
>+
>+        h->maybe_unlocking = true;  // we're about to scan the waiter list
>+                                    // without the spinlock held.
>+                                    // Enqueue must be conservative about
>+                                    // priority queuing.
>+
>+        // We must release the spinlock to evaluate the conditions.
>+        mu_.store(v, std::memory_order_release);  // release just spinlock
>+        // can release with a store because there were waiters
>+
>+        // h is the last waiter queued, and w_walk the first unsearched waiter.
>+        // Without the spinlock, the locations mu_ and h->next may now change
>+        // underneath us, but since we hold the lock itself, the only legal
>+        // change is to add waiters between h and w_walk.  Therefore, it's safe
>+        // to walk the path from w_walk to h inclusive. (TryRemove() can remove
>+        // a waiter anywhere, but it acquires both the spinlock and the Mutex)
>+
>+        old_h = h;        // remember we searched to here
>+
>+        // Walk the path upto and including h looking for waiters we can wake.
>+        while (pw_walk != h) {
>+          w_walk->wake = false;
>+          if (w_walk->waitp->cond ==
>+                  nullptr ||  // no condition => vacuously true OR
>+              (w_walk->waitp->cond != known_false &&
>+               // this thread's condition is not known false, AND
>+               //  is in fact true
>+               EvalConditionIgnored(this, w_walk->waitp->cond))) {
>+            if (w == nullptr) {
>+              w_walk->wake = true;    // can wake this waiter
>+              w = w_walk;
>+              pw = pw_walk;
>+              if (w_walk->waitp->how == kExclusive) {
>+                wr_wait = kMuWrWait;
>+                break;                // bail if waking this writer
>+              }
>+            } else if (w_walk->waitp->how == kShared) {  // wake if a reader
>+              w_walk->wake = true;
>+            } else {   // writer with true condition
>+              wr_wait = kMuWrWait;
>+            }
>+          } else {                  // can't wake; condition false
>+            known_false = w_walk->waitp->cond;  // remember last false condition
>+          }
>+          if (w_walk->wake) {   // we're waking reader w_walk
>+            pw_walk = w_walk;   // don't skip similar waiters
>+          } else {              // not waking; skip as much as possible
>+            pw_walk = Skip(w_walk);
>+          }
>+          // If pw_walk == h, then load of pw_walk->next can race with
>+          // concurrent write in Enqueue(). However, at the same time
>+          // we do not need to do the load, because we will bail out
>+          // from the loop anyway.
>+          if (pw_walk != h) {
>+            w_walk = pw_walk->next;
>+          }
>+        }
>+
>+        continue;  // restart for(;;)-loop to wakeup w or to find more waiters
>+      }
>+      ABSL_RAW_CHECK(pw->next == w, "pw not w's predecessor");
>+      // The first (and perhaps only) waiter we've chosen to wake is w, whose
>+      // predecessor is pw.  If w is a reader, we must wake all the other
>+      // waiters with wake==true as well.  We may also need to queue
>+      // ourselves if waitp != null.  The spinlock and the lock are still
>+      // held.
>+
>+      // This traverses the list in [ pw->next, h ], where h is the head,
>+      // removing all elements with wake==true and placing them in the
>+      // singly-linked list wake_list.  Returns the new head.
>+      h = DequeueAllWakeable(h, pw, &wake_list);
>+
>+      intptr_t nv = (v & kMuEvent) | kMuDesig;
>+                                             // assume no waiters left,
>+                                             // set kMuDesig for INV1a
>+
>+      if (waitp != nullptr) {  // we must queue ourselves and sleep
>+        h = Enqueue(h, waitp, v, kMuIsCond);
>+        // h is new last waiter; could be null if we queued ourselves on a
>+        // CondVar
>+      }
>+
>+      ABSL_RAW_CHECK(wake_list != kPerThreadSynchNull,
>+                     "unexpected empty wake list");
>+
>+      if (h != nullptr) {  // there are waiters left
>+        h->readers = 0;
>+        h->maybe_unlocking = false;     // finished unlocking
>+        nv |= wr_wait | kMuWait | reinterpret_cast<intptr_t>(h);
>+      }
>+
>+      // release both spinlock & lock
>+      // can release with a store because there were waiters
>+      mu_.store(nv, std::memory_order_release);
>+      break;  // out of for(;;)-loop
>+    }
>+    c = Delay(c, AGGRESSIVE);  // aggressive here; no one can proceed till we do
>+  }                            // end of for(;;)-loop
>+
>+  if (wake_list != kPerThreadSynchNull) {
>+    int64_t enqueue_timestamp = wake_list->waitp->contention_start_cycles;
>+    bool cond_waiter = wake_list->cond_waiter;
>+    do {
>+      wake_list = Wakeup(wake_list);              // wake waiters
>+    } while (wake_list != kPerThreadSynchNull);
>+    if (!cond_waiter) {
>+      // Sample lock contention events only if the (first) waiter was trying to
>+      // acquire the lock, not waiting on a condition variable or Condition.
>+      int64_t wait_cycles = base_internal::CycleClock::Now() - enqueue_timestamp;
>+      mutex_tracer("slow release", this, wait_cycles);
>+      ABSL_TSAN_MUTEX_PRE_DIVERT(this, 0);
>+      submit_profile_data(enqueue_timestamp);
>+      ABSL_TSAN_MUTEX_POST_DIVERT(this, 0);
>+    }
>+  }
>+}
>+
>+// Used by CondVar implementation to reacquire mutex after waking from
>+// condition variable.  This routine is used instead of Lock() because the
>+// waiting thread may have been moved from the condition variable queue to the
>+// mutex queue without a wakeup, by Trans().  In that case, when the thread is
>+// finally woken, the woken thread will believe it has been woken from the
>+// condition variable (i.e. its PC will be in when in the CondVar code), when
>+// in fact it has just been woken from the mutex.  Thus, it must enter the slow
>+// path of the mutex in the same state as if it had just woken from the mutex.
>+// That is, it must ensure to clear kMuDesig (INV1b).
>+void Mutex::Trans(MuHow how) {
>+  this->LockSlow(how, nullptr, kMuHasBlocked | kMuIsCond);
>+}
>+
>+// Used by CondVar implementation to effectively wake thread w from the
>+// condition variable.  If this mutex is free, we simply wake the thread.
>+// It will later acquire the mutex with high probability.  Otherwise, we
>+// enqueue thread w on this mutex.
>+void Mutex::Fer(PerThreadSynch *w) {
>+  int c = 0;
>+  ABSL_RAW_CHECK(w->waitp->cond == nullptr,
>+                 "Mutex::Fer while waiting on Condition");
>+  ABSL_RAW_CHECK(!w->waitp->timeout.has_timeout(),
>+                 "Mutex::Fer while in timed wait");
>+  ABSL_RAW_CHECK(w->waitp->cv_word == nullptr,
>+                 "Mutex::Fer with pending CondVar queueing");
>+  for (;;) {
>+    intptr_t v = mu_.load(std::memory_order_relaxed);
>+    // Note: must not queue if the mutex is unlocked (nobody will wake it).
>+    // For example, we can have only kMuWait (conditional) or maybe
>+    // kMuWait|kMuWrWait.
>+    // conflicting != 0 implies that the waking thread cannot currently take
>+    // the mutex, which in turn implies that someone else has it and can wake
>+    // us if we queue.
>+    const intptr_t conflicting =
>+        kMuWriter | (w->waitp->how == kShared ? 0 : kMuReader);
>+    if ((v & conflicting) == 0) {
>+      w->next = nullptr;
>+      w->state.store(PerThreadSynch::kAvailable, std::memory_order_release);
>+      IncrementSynchSem(this, w);
>+      return;
>+    } else {
>+      if ((v & (kMuSpin|kMuWait)) == 0) {       // no waiters
>+        // This thread tries to become the one and only waiter.
>+        PerThreadSynch *new_h = Enqueue(nullptr, w->waitp, v, kMuIsCond);
>+        ABSL_RAW_CHECK(new_h != nullptr,
>+                       "Enqueue failed");  // we must queue ourselves
>+        if (mu_.compare_exchange_strong(
>+                v, reinterpret_cast<intptr_t>(new_h) | (v & kMuLow) | kMuWait,
>+                std::memory_order_release, std::memory_order_relaxed)) {
>+          return;
>+        }
>+      } else if ((v & kMuSpin) == 0 &&
>+                 mu_.compare_exchange_strong(v, v | kMuSpin | kMuWait)) {
>+        PerThreadSynch *h = GetPerThreadSynch(v);
>+        PerThreadSynch *new_h = Enqueue(h, w->waitp, v, kMuIsCond);
>+        ABSL_RAW_CHECK(new_h != nullptr,
>+                       "Enqueue failed");  // we must queue ourselves
>+        do {
>+          v = mu_.load(std::memory_order_relaxed);
>+        } while (!mu_.compare_exchange_weak(
>+            v,
>+            (v & kMuLow & ~kMuSpin) | kMuWait |
>+                reinterpret_cast<intptr_t>(new_h),
>+            std::memory_order_release, std::memory_order_relaxed));
>+        return;
>+      }
>+    }
>+    c = Delay(c, GENTLE);
>+  }
>+}
>+
>+void Mutex::AssertHeld() const {
>+  if ((mu_.load(std::memory_order_relaxed) & kMuWriter) == 0) {
>+    SynchEvent *e = GetSynchEvent(this);
>+    ABSL_RAW_LOG(FATAL, "thread should hold write lock on Mutex %p %s",
>+                 static_cast<const void *>(this),
>+                 (e == nullptr ? "" : e->name));
>+  }
>+}
>+
>+void Mutex::AssertReaderHeld() const {
>+  if ((mu_.load(std::memory_order_relaxed) & (kMuReader | kMuWriter)) == 0) {
>+    SynchEvent *e = GetSynchEvent(this);
>+    ABSL_RAW_LOG(
>+        FATAL, "thread should hold at least a read lock on Mutex %p %s",
>+        static_cast<const void *>(this), (e == nullptr ? "" : e->name));
>+  }
>+}
>+
>+// -------------------------------- condition variables
>+static const intptr_t kCvSpin = 0x0001L;   // spinlock protects waiter list
>+static const intptr_t kCvEvent = 0x0002L;  // record events
>+
>+static const intptr_t kCvLow = 0x0003L;  // low order bits of CV
>+
>+// Hack to make constant values available to gdb pretty printer
>+enum { kGdbCvSpin = kCvSpin, kGdbCvEvent = kCvEvent, kGdbCvLow = kCvLow, };
>+
>+static_assert(PerThreadSynch::kAlignment > kCvLow,
>+              "PerThreadSynch::kAlignment must be greater than kCvLow");
>+
>+void CondVar::EnableDebugLog(const char *name) {
>+  SynchEvent *e = EnsureSynchEvent(&this->cv_, name, kCvEvent, kCvSpin);
>+  e->log = true;
>+  UnrefSynchEvent(e);
>+}
>+
>+CondVar::~CondVar() {
>+  if ((cv_.load(std::memory_order_relaxed) & kCvEvent) != 0) {
>+    ForgetSynchEvent(&this->cv_, kCvEvent, kCvSpin);
>+  }
>+}
>+
>+
>+// Remove thread s from the list of waiters on this condition variable.
>+void CondVar::Remove(PerThreadSynch *s) {
>+  intptr_t v;
>+  int c = 0;
>+  for (v = cv_.load(std::memory_order_relaxed);;
>+       v = cv_.load(std::memory_order_relaxed)) {
>+    if ((v & kCvSpin) == 0 &&  // attempt to acquire spinlock
>+        cv_.compare_exchange_strong(v, v | kCvSpin,
>+                                    std::memory_order_acquire,
>+                                    std::memory_order_relaxed)) {
>+      PerThreadSynch *h = reinterpret_cast<PerThreadSynch *>(v & ~kCvLow);
>+      if (h != nullptr) {
>+        PerThreadSynch *w = h;
>+        while (w->next != s && w->next != h) {  // search for thread
>+          w = w->next;
>+        }
>+        if (w->next == s) {           // found thread; remove it
>+          w->next = s->next;
>+          if (h == s) {
>+            h = (w == s) ? nullptr : w;
>+          }
>+          s->next = nullptr;
>+          s->state.store(PerThreadSynch::kAvailable, std::memory_order_release);
>+        }
>+      }
>+                                      // release spinlock
>+      cv_.store((v & kCvEvent) | reinterpret_cast<intptr_t>(h),
>+                std::memory_order_release);
>+      return;
>+    } else {
>+      c = Delay(c, GENTLE);            // try again after a delay
>+    }
>+  }
>+}
>+
>+// Queue thread waitp->thread on condition variable word cv_word using
>+// wait parameters waitp.
>+// We split this into a separate routine, rather than simply doing it as part
>+// of WaitCommon().  If we were to queue ourselves on the condition variable
>+// before calling Mutex::UnlockSlow(), the Mutex code might be re-entered (via
>+// the logging code, or via a Condition function) and might potentially attempt
>+// to block this thread.  That would be a problem if the thread were already on
>+// a the condition variable waiter queue.  Thus, we use the waitp->cv_word
>+// to tell the unlock code to call CondVarEnqueue() to queue the thread on the
>+// condition variable queue just before the mutex is to be unlocked, and (most
>+// importantly) after any call to an external routine that might re-enter the
>+// mutex code.
>+static void CondVarEnqueue(SynchWaitParams *waitp) {
>+  // This thread might be transferred to the Mutex queue by Fer() when
>+  // we are woken.  To make sure that is what happens, Enqueue() doesn't
>+  // call CondVarEnqueue() again but instead uses its normal code.  We
>+  // must do this before we queue ourselves so that cv_word will be null
>+  // when seen by the dequeuer, who may wish immediately to requeue
>+  // this thread on another queue.
>+  std::atomic<intptr_t> *cv_word = waitp->cv_word;
>+  waitp->cv_word = nullptr;
>+
>+  intptr_t v = cv_word->load(std::memory_order_relaxed);
>+  int c = 0;
>+  while ((v & kCvSpin) != 0 ||  // acquire spinlock
>+         !cv_word->compare_exchange_weak(v, v | kCvSpin,
>+                                         std::memory_order_acquire,
>+                                         std::memory_order_relaxed)) {
>+    c = Delay(c, GENTLE);
>+    v = cv_word->load(std::memory_order_relaxed);
>+  }
>+  ABSL_RAW_CHECK(waitp->thread->waitp == nullptr, "waiting when shouldn't be");
>+  waitp->thread->waitp = waitp;      // prepare ourselves for waiting
>+  PerThreadSynch *h = reinterpret_cast<PerThreadSynch *>(v & ~kCvLow);
>+  if (h == nullptr) {  // add this thread to waiter list
>+    waitp->thread->next = waitp->thread;
>+  } else {
>+    waitp->thread->next = h->next;
>+    h->next = waitp->thread;
>+  }
>+  waitp->thread->state.store(PerThreadSynch::kQueued,
>+                             std::memory_order_relaxed);
>+  cv_word->store((v & kCvEvent) | reinterpret_cast<intptr_t>(waitp->thread),
>+                 std::memory_order_release);
>+}
>+
>+bool CondVar::WaitCommon(Mutex *mutex, KernelTimeout t) {
>+  bool rc = false;          // return value; true iff we timed-out
>+
>+  intptr_t mutex_v = mutex->mu_.load(std::memory_order_relaxed);
>+  Mutex::MuHow mutex_how = ((mutex_v & kMuWriter) != 0) ? kExclusive : kShared;
>+  ABSL_TSAN_MUTEX_PRE_UNLOCK(mutex, TsanFlags(mutex_how));
>+
>+  // maybe trace this call
>+  intptr_t v = cv_.load(std::memory_order_relaxed);
>+  cond_var_tracer("Wait", this);
>+  if ((v & kCvEvent) != 0) {
>+    PostSynchEvent(this, SYNCH_EV_WAIT);
>+  }
>+
>+  // Release mu and wait on condition variable.
>+  SynchWaitParams waitp(mutex_how, nullptr, t, mutex,
>+                        Synch_GetPerThreadAnnotated(mutex), &cv_);
>+  // UnlockSlow() will call CondVarEnqueue() just before releasing the
>+  // Mutex, thus queuing this thread on the condition variable.  See
>+  // CondVarEnqueue() for the reasons.
>+  mutex->UnlockSlow(&waitp);
>+
>+  // wait for signal
>+  while (waitp.thread->state.load(std::memory_order_acquire) ==
>+         PerThreadSynch::kQueued) {
>+    if (!Mutex::DecrementSynchSem(mutex, waitp.thread, t)) {
>+      this->Remove(waitp.thread);
>+      rc = true;
>+    }
>+  }
>+
>+  ABSL_RAW_CHECK(waitp.thread->waitp != nullptr, "not waiting when should be");
>+  waitp.thread->waitp = nullptr;  // cleanup
>+
>+  // maybe trace this call
>+  cond_var_tracer("Unwait", this);
>+  if ((v & kCvEvent) != 0) {
>+    PostSynchEvent(this, SYNCH_EV_WAIT_RETURNING);
>+  }
>+
>+  // From synchronization point of view Wait is unlock of the mutex followed
>+  // by lock of the mutex. We've annotated start of unlock in the beginning
>+  // of the function. Now, finish unlock and annotate lock of the mutex.
>+  // (Trans is effectively lock).
>+  ABSL_TSAN_MUTEX_POST_UNLOCK(mutex, TsanFlags(mutex_how));
>+  ABSL_TSAN_MUTEX_PRE_LOCK(mutex, TsanFlags(mutex_how));
>+  mutex->Trans(mutex_how);  // Reacquire mutex
>+  ABSL_TSAN_MUTEX_POST_LOCK(mutex, TsanFlags(mutex_how), 0);
>+  return rc;
>+}
>+
>+bool CondVar::WaitWithTimeout(Mutex *mu, absl::Duration timeout) {
>+  return WaitWithDeadline(mu, DeadlineFromTimeout(timeout));
>+}
>+
>+bool CondVar::WaitWithDeadline(Mutex *mu, absl::Time deadline) {
>+  return WaitCommon(mu, KernelTimeout(deadline));
>+}
>+
>+void CondVar::Wait(Mutex *mu) {
>+  WaitCommon(mu, KernelTimeout::Never());
>+}
>+
>+// Wake thread w
>+// If it was a timed wait, w will be waiting on w->cv
>+// Otherwise, if it was not a Mutex mutex, w will be waiting on w->sem
>+// Otherwise, w is transferred to the Mutex mutex via Mutex::Fer().
>+void CondVar::Wakeup(PerThreadSynch *w) {
>+  if (w->waitp->timeout.has_timeout() || w->waitp->cvmu == nullptr) {
>+    // The waiting thread only needs to observe "w->state == kAvailable" to be
>+    // released, we must cache "cvmu" before clearing "next".
>+    Mutex *mu = w->waitp->cvmu;
>+    w->next = nullptr;
>+    w->state.store(PerThreadSynch::kAvailable, std::memory_order_release);
>+    Mutex::IncrementSynchSem(mu, w);
>+  } else {
>+    w->waitp->cvmu->Fer(w);
>+  }
>+}
>+
>+void CondVar::Signal() {
>+  ABSL_TSAN_MUTEX_PRE_SIGNAL(0, 0);
>+  intptr_t v;
>+  int c = 0;
>+  for (v = cv_.load(std::memory_order_relaxed); v != 0;
>+       v = cv_.load(std::memory_order_relaxed)) {
>+    if ((v & kCvSpin) == 0 &&  // attempt to acquire spinlock
>+        cv_.compare_exchange_strong(v, v | kCvSpin,
>+                                    std::memory_order_acquire,
>+                                    std::memory_order_relaxed)) {
>+      PerThreadSynch *h = reinterpret_cast<PerThreadSynch *>(v & ~kCvLow);
>+      PerThreadSynch *w = nullptr;
>+      if (h != nullptr) {  // remove first waiter
>+        w = h->next;
>+        if (w == h) {
>+          h = nullptr;
>+        } else {
>+          h->next = w->next;
>+        }
>+      }
>+                                      // release spinlock
>+      cv_.store((v & kCvEvent) | reinterpret_cast<intptr_t>(h),
>+                std::memory_order_release);
>+      if (w != nullptr) {
>+        CondVar::Wakeup(w);                // wake waiter, if there was one
>+        cond_var_tracer("Signal wakeup", this);
>+      }
>+      if ((v & kCvEvent) != 0) {
>+        PostSynchEvent(this, SYNCH_EV_SIGNAL);
>+      }
>+      ABSL_TSAN_MUTEX_POST_SIGNAL(0, 0);
>+      return;
>+    } else {
>+      c = Delay(c, GENTLE);
>+    }
>+  }
>+  ABSL_TSAN_MUTEX_POST_SIGNAL(0, 0);
>+}
>+
>+void CondVar::SignalAll () {
>+  ABSL_TSAN_MUTEX_PRE_SIGNAL(0, 0);
>+  intptr_t v;
>+  int c = 0;
>+  for (v = cv_.load(std::memory_order_relaxed); v != 0;
>+       v = cv_.load(std::memory_order_relaxed)) {
>+    // empty the list if spinlock free
>+    // We do this by simply setting the list to empty using
>+    // compare and swap.   We then have the entire list in our hands,
>+    // which cannot be changing since we grabbed it while no one
>+    // held the lock.
>+    if ((v & kCvSpin) == 0 &&
>+        cv_.compare_exchange_strong(v, v & kCvEvent, std::memory_order_acquire,
>+                                    std::memory_order_relaxed)) {
>+      PerThreadSynch *h = reinterpret_cast<PerThreadSynch *>(v & ~kCvLow);
>+      if (h != nullptr) {
>+        PerThreadSynch *w;
>+        PerThreadSynch *n = h->next;
>+        do {                          // for every thread, wake it up
>+          w = n;
>+          n = n->next;
>+          CondVar::Wakeup(w);
>+        } while (w != h);
>+        cond_var_tracer("SignalAll wakeup", this);
>+      }
>+      if ((v & kCvEvent) != 0) {
>+        PostSynchEvent(this, SYNCH_EV_SIGNALALL);
>+      }
>+      ABSL_TSAN_MUTEX_POST_SIGNAL(0, 0);
>+      return;
>+    } else {
>+      c = Delay(c, GENTLE);           // try again after a delay
>+    }
>+  }
>+  ABSL_TSAN_MUTEX_POST_SIGNAL(0, 0);
>+}
>+
>+void ReleasableMutexLock::Release() {
>+  ABSL_RAW_CHECK(this->mu_ != nullptr,
>+                 "ReleasableMutexLock::Release may only be called once");
>+  this->mu_->Unlock();
>+  this->mu_ = nullptr;
>+}
>+
>+#ifdef THREAD_SANITIZER
>+extern "C" void __tsan_read1(void *addr);
>+#else
>+#define __tsan_read1(addr)  // do nothing if TSan not enabled
>+#endif
>+
>+// A function that just returns its argument, dereferenced
>+static bool Dereference(void *arg) {
>+  // ThreadSanitizer does not instrument this file for memory accesses.
>+  // This function dereferences a user variable that can participate
>+  // in a data race, so we need to manually tell TSan about this memory access.
>+  __tsan_read1(arg);
>+  return *(static_cast<bool *>(arg));
>+}
>+
>+Condition::Condition() {}   // null constructor, used for kTrue only
>+const Condition Condition::kTrue;
>+
>+Condition::Condition(bool (*func)(void *), void *arg)
>+    : eval_(&CallVoidPtrFunction),
>+      function_(func),
>+      method_(nullptr),
>+      arg_(arg) {}
>+
>+bool Condition::CallVoidPtrFunction(const Condition *c) {
>+  return (*c->function_)(c->arg_);
>+}
>+
>+Condition::Condition(const bool *cond)
>+    : eval_(CallVoidPtrFunction),
>+      function_(Dereference),
>+      method_(nullptr),
>+      // const_cast is safe since Dereference does not modify arg
>+      arg_(const_cast<bool *>(cond)) {}
>+
>+bool Condition::Eval() const {
>+  // eval_ == null for kTrue
>+  return (this->eval_ == nullptr) || (*this->eval_)(this);
>+}
>+
>+bool Condition::GuaranteedEqual(const Condition *a, const Condition *b) {
>+  if (a == nullptr) {
>+    return b == nullptr || b->eval_ == nullptr;
>+  }
>+  if (b == nullptr || b->eval_ == nullptr) {
>+    return a->eval_ == nullptr;
>+  }
>+  return a->eval_ == b->eval_ && a->function_ == b->function_ &&
>+         a->arg_ == b->arg_ && a->method_ == b->method_;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..83c214867ac53a9122dd4e9753fc8bf72e128be5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex.h
>@@ -0,0 +1,1028 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// mutex.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines a `Mutex` -- a mutually exclusive lock -- and the
>+// most common type of synchronization primitive for facilitating locks on
>+// shared resources. A mutex is used to prevent multiple threads from accessing
>+// and/or writing to a shared resource concurrently.
>+//
>+// Unlike a `std::mutex`, the Abseil `Mutex` provides the following additional
>+// features:
>+//   * Conditional predicates intrinsic to the `Mutex` object
>+//   * Shared/reader locks, in addition to standard exclusive/writer locks
>+//   * Deadlock detection and debug support.
>+//
>+// The following helper classes are also defined within this file:
>+//
>+//  MutexLock - An RAII wrapper to acquire and release a `Mutex` for exclusive/
>+//              write access within the current scope.
>+//  ReaderMutexLock
>+//            - An RAII wrapper to acquire and release a `Mutex` for shared/read
>+//              access within the current scope.
>+//
>+//  WriterMutexLock
>+//            - Alias for `MutexLock` above, designed for use in distinguishing
>+//              reader and writer locks within code.
>+//
>+// In addition to simple mutex locks, this file also defines ways to perform
>+// locking under certain conditions.
>+//
>+//  Condition   - (Preferred) Used to wait for a particular predicate that
>+//                depends on state protected by the `Mutex` to become true.
>+//  CondVar     - A lower-level variant of `Condition` that relies on
>+//                application code to explicitly signal the `CondVar` when
>+//                a condition has been met.
>+//
>+// See below for more information on using `Condition` or `CondVar`.
>+//
>+// Mutexes and mutex behavior can be quite complicated. The information within
>+// this header file is limited, as a result. Please consult the Mutex guide for
>+// more complete information and examples.
>+
>+#ifndef ABSL_SYNCHRONIZATION_MUTEX_H_
>+#define ABSL_SYNCHRONIZATION_MUTEX_H_
>+
>+#include <atomic>
>+#include <cstdint>
>+#include <string>
>+
>+#include "absl/base/internal/identity.h"
>+#include "absl/base/internal/low_level_alloc.h"
>+#include "absl/base/internal/thread_identity.h"
>+#include "absl/base/internal/tsan_mutex_interface.h"
>+#include "absl/base/port.h"
>+#include "absl/base/thread_annotations.h"
>+#include "absl/synchronization/internal/kernel_timeout.h"
>+#include "absl/synchronization/internal/per_thread_sem.h"
>+#include "absl/time/time.h"
>+
>+// Decide if we should use the non-production implementation because
>+// the production implementation hasn't been fully ported yet.
>+#ifdef ABSL_INTERNAL_USE_NONPROD_MUTEX
>+#error ABSL_INTERNAL_USE_NONPROD_MUTEX cannot be directly set
>+#elif defined(ABSL_LOW_LEVEL_ALLOC_MISSING)
>+#define ABSL_INTERNAL_USE_NONPROD_MUTEX 1
>+#include "absl/synchronization/internal/mutex_nonprod.inc"
>+#endif
>+
>+namespace absl {
>+
>+class Condition;
>+struct SynchWaitParams;
>+
>+// -----------------------------------------------------------------------------
>+// Mutex
>+// -----------------------------------------------------------------------------
>+//
>+// A `Mutex` is a non-reentrant (aka non-recursive) Mutually Exclusive lock
>+// on some resource, typically a variable or data structure with associated
>+// invariants. Proper usage of mutexes prevents concurrent access by different
>+// threads to the same resource.
>+//
>+// A `Mutex` has two basic operations: `Mutex::Lock()` and `Mutex::Unlock()`.
>+// The `Lock()` operation *acquires* a `Mutex` (in a state known as an
>+// *exclusive* -- or write -- lock), while the `Unlock()` operation *releases* a
>+// Mutex. During the span of time between the Lock() and Unlock() operations,
>+// a mutex is said to be *held*. By design all mutexes support exclusive/write
>+// locks, as this is the most common way to use a mutex.
>+//
>+// The `Mutex` state machine for basic lock/unlock operations is quite simple:
>+//
>+// |                | Lock()     | Unlock() |
>+// |----------------+------------+----------|
>+// | Free           | Exclusive  | invalid  |
>+// | Exclusive      | blocks     | Free     |
>+//
>+// Attempts to `Unlock()` must originate from the thread that performed the
>+// corresponding `Lock()` operation.
>+//
>+// An "invalid" operation is disallowed by the API. The `Mutex` implementation
>+// is allowed to do anything on an invalid call, including but not limited to
>+// crashing with a useful error message, silently succeeding, or corrupting
>+// data structures. In debug mode, the implementation attempts to crash with a
>+// useful error message.
>+//
>+// `Mutex` is not guaranteed to be "fair" in prioritizing waiting threads; it
>+// is, however, approximately fair over long periods, and starvation-free for
>+// threads at the same priority.
>+//
>+// The lock/unlock primitives are now annotated with lock annotations
>+// defined in (base/thread_annotations.h). When writing multi-threaded code,
>+// you should use lock annotations whenever possible to document your lock
>+// synchronization policy. Besides acting as documentation, these annotations
>+// also help compilers or static analysis tools to identify and warn about
>+// issues that could potentially result in race conditions and deadlocks.
>+//
>+// For more information about the lock annotations, please see
>+// [Thread Safety Analysis](http://clang.llvm.org/docs/ThreadSafetyAnalysis.html)
>+// in the Clang documentation.
>+//
>+// See also `MutexLock`, below, for scoped `Mutex` acquisition.
>+
>+class LOCKABLE Mutex {
>+ public:
>+  Mutex();
>+  ~Mutex();
>+
>+  // Mutex::Lock()
>+  //
>+  // Blocks the calling thread, if necessary, until this `Mutex` is free, and
>+  // then acquires it exclusively. (This lock is also known as a "write lock.")
>+  void Lock() EXCLUSIVE_LOCK_FUNCTION();
>+
>+  // Mutex::Unlock()
>+  //
>+  // Releases this `Mutex` and returns it from the exclusive/write state to the
>+  // free state. Caller must hold the `Mutex` exclusively.
>+  void Unlock() UNLOCK_FUNCTION();
>+
>+  // Mutex::TryLock()
>+  //
>+  // If the mutex can be acquired without blocking, does so exclusively and
>+  // returns `true`. Otherwise, returns `false`. Returns `true` with high
>+  // probability if the `Mutex` was free.
>+  bool TryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true);
>+
>+  // Mutex::AssertHeld()
>+  //
>+  // Return immediately if this thread holds the `Mutex` exclusively (in write
>+  // mode). Otherwise, may report an error (typically by crashing with a
>+  // diagnostic), or may return immediately.
>+  void AssertHeld() const ASSERT_EXCLUSIVE_LOCK();
>+
>+  // ---------------------------------------------------------------------------
>+  // Reader-Writer Locking
>+  // ---------------------------------------------------------------------------
>+
>+  // A Mutex can also be used as a starvation-free reader-writer lock.
>+  // Neither read-locks nor write-locks are reentrant/recursive to avoid
>+  // potential client programming errors.
>+  //
>+  // The Mutex API provides `Writer*()` aliases for the existing `Lock()`,
>+  // `Unlock()` and `TryLock()` methods for use within applications mixing
>+  // reader/writer locks. Using `Reader*()` and `Writer*()` operations in this
>+  // manner can make locking behavior clearer when mixing read and write modes.
>+  //
>+  // Introducing reader locks necessarily complicates the `Mutex` state
>+  // machine somewhat. The table below illustrates the allowed state transitions
>+  // of a mutex in such cases. Note that ReaderLock() may block even if the lock
>+  // is held in shared mode; this occurs when another thread is blocked on a
>+  // call to WriterLock().
>+  //
>+  // ---------------------------------------------------------------------------
>+  //     Operation: WriterLock() Unlock()  ReaderLock()           ReaderUnlock()
>+  // ---------------------------------------------------------------------------
>+  // State
>+  // ---------------------------------------------------------------------------
>+  // Free           Exclusive    invalid   Shared(1)              invalid
>+  // Shared(1)      blocks       invalid   Shared(2) or blocks    Free
>+  // Shared(n) n>1  blocks       invalid   Shared(n+1) or blocks  Shared(n-1)
>+  // Exclusive      blocks       Free      blocks                 invalid
>+  // ---------------------------------------------------------------------------
>+  //
>+  // In comments below, "shared" refers to a state of Shared(n) for any n > 0.
>+
>+  // Mutex::ReaderLock()
>+  //
>+  // Blocks the calling thread, if necessary, until this `Mutex` is either free,
>+  // or in shared mode, and then acquires a share of it. Note that
>+  // `ReaderLock()` will block if some other thread has an exclusive/writer lock
>+  // on the mutex.
>+
>+  void ReaderLock() SHARED_LOCK_FUNCTION();
>+
>+  // Mutex::ReaderUnlock()
>+  //
>+  // Releases a read share of this `Mutex`. `ReaderUnlock` may return a mutex to
>+  // the free state if this thread holds the last reader lock on the mutex. Note
>+  // that you cannot call `ReaderUnlock()` on a mutex held in write mode.
>+  void ReaderUnlock() UNLOCK_FUNCTION();
>+
>+  // Mutex::ReaderTryLock()
>+  //
>+  // If the mutex can be acquired without blocking, acquires this mutex for
>+  // shared access and returns `true`. Otherwise, returns `false`. Returns
>+  // `true` with high probability if the `Mutex` was free or shared.
>+  bool ReaderTryLock() SHARED_TRYLOCK_FUNCTION(true);
>+
>+  // Mutex::AssertReaderHeld()
>+  //
>+  // Returns immediately if this thread holds the `Mutex` in at least shared
>+  // mode (read mode). Otherwise, may report an error (typically by
>+  // crashing with a diagnostic), or may return immediately.
>+  void AssertReaderHeld() const ASSERT_SHARED_LOCK();
>+
>+  // Mutex::WriterLock()
>+  // Mutex::WriterUnlock()
>+  // Mutex::WriterTryLock()
>+  //
>+  // Aliases for `Mutex::Lock()`, `Mutex::Unlock()`, and `Mutex::TryLock()`.
>+  //
>+  // These methods may be used (along with the complementary `Reader*()`
>+  // methods) to distingish simple exclusive `Mutex` usage (`Lock()`,
>+  // etc.) from reader/writer lock usage.
>+  void WriterLock() EXCLUSIVE_LOCK_FUNCTION() { this->Lock(); }
>+
>+  void WriterUnlock() UNLOCK_FUNCTION() { this->Unlock(); }
>+
>+  bool WriterTryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true) {
>+    return this->TryLock();
>+  }
>+
>+  // ---------------------------------------------------------------------------
>+  // Conditional Critical Regions
>+  // ---------------------------------------------------------------------------
>+
>+  // Conditional usage of a `Mutex` can occur using two distinct paradigms:
>+  //
>+  //   * Use of `Mutex` member functions with `Condition` objects.
>+  //   * Use of the separate `CondVar` abstraction.
>+  //
>+  // In general, prefer use of `Condition` and the `Mutex` member functions
>+  // listed below over `CondVar`. When there are multiple threads waiting on
>+  // distinctly different conditions, however, a battery of `CondVar`s may be
>+  // more efficient. This section discusses use of `Condition` objects.
>+  //
>+  // `Mutex` contains member functions for performing lock operations only under
>+  // certain conditions, of class `Condition`. For correctness, the `Condition`
>+  // must return a boolean that is a pure function, only of state protected by
>+  // the `Mutex`. The condition must be invariant w.r.t. environmental state
>+  // such as thread, cpu id, or time, and must be `noexcept`. The condition will
>+  // always be invoked with the mutex held in at least read mode, so you should
>+  // not block it for long periods or sleep it on a timer.
>+  //
>+  // Since a condition must not depend directly on the current time, use
>+  // `*WithTimeout()` member function variants to make your condition
>+  // effectively true after a given duration, or `*WithDeadline()` variants to
>+  // make your condition effectively true after a given time.
>+  //
>+  // The condition function should have no side-effects aside from debug
>+  // logging; as a special exception, the function may acquire other mutexes
>+  // provided it releases all those that it acquires.  (This exception was
>+  // required to allow logging.)
>+
>+  // Mutex::Await()
>+  //
>+  // Unlocks this `Mutex` and blocks until simultaneously both `cond` is `true`
>+  // and this `Mutex` can be reacquired, then reacquires this `Mutex` in the
>+  // same mode in which it was previously held. If the condition is initially
>+  // `true`, `Await()` *may* skip the release/re-acquire step.
>+  //
>+  // `Await()` requires that this thread holds this `Mutex` in some mode.
>+  void Await(const Condition &cond);
>+
>+  // Mutex::LockWhen()
>+  // Mutex::ReaderLockWhen()
>+  // Mutex::WriterLockWhen()
>+  //
>+  // Blocks until simultaneously both `cond` is `true` and this `Mutex` can
>+  // be acquired, then atomically acquires this `Mutex`. `LockWhen()` is
>+  // logically equivalent to `*Lock(); Await();` though they may have different
>+  // performance characteristics.
>+  void LockWhen(const Condition &cond) EXCLUSIVE_LOCK_FUNCTION();
>+
>+  void ReaderLockWhen(const Condition &cond) SHARED_LOCK_FUNCTION();
>+
>+  void WriterLockWhen(const Condition &cond) EXCLUSIVE_LOCK_FUNCTION() {
>+    this->LockWhen(cond);
>+  }
>+
>+  // ---------------------------------------------------------------------------
>+  // Mutex Variants with Timeouts/Deadlines
>+  // ---------------------------------------------------------------------------
>+
>+  // Mutex::AwaitWithTimeout()
>+  // Mutex::AwaitWithDeadline()
>+  //
>+  // If `cond` is initially true, do nothing, or act as though `cond` is
>+  // initially false.
>+  //
>+  // If `cond` is initially false, unlock this `Mutex` and block until
>+  // simultaneously:
>+  //   - either `cond` is true or the {timeout has expired, deadline has passed}
>+  //     and
>+  //   - this `Mutex` can be reacquired,
>+  // then reacquire this `Mutex` in the same mode in which it was previously
>+  // held, returning `true` iff `cond` is `true` on return.
>+  //
>+  // Deadlines in the past are equivalent to an immediate deadline.
>+  // Negative timeouts are equivalent to a zero timeout.
>+  //
>+  // This method requires that this thread holds this `Mutex` in some mode.
>+  bool AwaitWithTimeout(const Condition &cond, absl::Duration timeout);
>+
>+  bool AwaitWithDeadline(const Condition &cond, absl::Time deadline);
>+
>+  // Mutex::LockWhenWithTimeout()
>+  // Mutex::ReaderLockWhenWithTimeout()
>+  // Mutex::WriterLockWhenWithTimeout()
>+  //
>+  // Blocks until simultaneously both:
>+  //   - either `cond` is `true` or the timeout has expired, and
>+  //   - this `Mutex` can be acquired,
>+  // then atomically acquires this `Mutex`, returning `true` iff `cond` is
>+  // `true` on return.
>+  //
>+  // Negative timeouts are equivalent to a zero timeout.
>+  bool LockWhenWithTimeout(const Condition &cond, absl::Duration timeout)
>+      EXCLUSIVE_LOCK_FUNCTION();
>+  bool ReaderLockWhenWithTimeout(const Condition &cond, absl::Duration timeout)
>+      SHARED_LOCK_FUNCTION();
>+  bool WriterLockWhenWithTimeout(const Condition &cond, absl::Duration timeout)
>+      EXCLUSIVE_LOCK_FUNCTION() {
>+    return this->LockWhenWithTimeout(cond, timeout);
>+  }
>+
>+  // Mutex::LockWhenWithDeadline()
>+  // Mutex::ReaderLockWhenWithDeadline()
>+  // Mutex::WriterLockWhenWithDeadline()
>+  //
>+  // Blocks until simultaneously both:
>+  //   - either `cond` is `true` or the deadline has been passed, and
>+  //   - this `Mutex` can be acquired,
>+  // then atomically acquires this Mutex, returning `true` iff `cond` is `true`
>+  // on return.
>+  //
>+  // Deadlines in the past are equivalent to an immediate deadline.
>+  bool LockWhenWithDeadline(const Condition &cond, absl::Time deadline)
>+      EXCLUSIVE_LOCK_FUNCTION();
>+  bool ReaderLockWhenWithDeadline(const Condition &cond, absl::Time deadline)
>+      SHARED_LOCK_FUNCTION();
>+  bool WriterLockWhenWithDeadline(const Condition &cond, absl::Time deadline)
>+      EXCLUSIVE_LOCK_FUNCTION() {
>+    return this->LockWhenWithDeadline(cond, deadline);
>+  }
>+
>+  // ---------------------------------------------------------------------------
>+  // Debug Support: Invariant Checking, Deadlock Detection, Logging.
>+  // ---------------------------------------------------------------------------
>+
>+  // Mutex::EnableInvariantDebugging()
>+  //
>+  // If `invariant`!=null and if invariant debugging has been enabled globally,
>+  // cause `(*invariant)(arg)` to be called at moments when the invariant for
>+  // this `Mutex` should hold (for example: just after acquire, just before
>+  // release).
>+  //
>+  // The routine `invariant` should have no side-effects since it is not
>+  // guaranteed how many times it will be called; it should check the invariant
>+  // and crash if it does not hold. Enabling global invariant debugging may
>+  // substantially reduce `Mutex` performance; it should be set only for
>+  // non-production runs.  Optimization options may also disable invariant
>+  // checks.
>+  void EnableInvariantDebugging(void (*invariant)(void *), void *arg);
>+
>+  // Mutex::EnableDebugLog()
>+  //
>+  // Cause all subsequent uses of this `Mutex` to be logged via
>+  // `ABSL_RAW_LOG(INFO)`. Log entries are tagged with `name` if no previous
>+  // call to `EnableInvariantDebugging()` or `EnableDebugLog()` has been made.
>+  //
>+  // Note: This method substantially reduces `Mutex` performance.
>+  void EnableDebugLog(const char *name);
>+
>+  // Deadlock detection
>+
>+  // Mutex::ForgetDeadlockInfo()
>+  //
>+  // Forget any deadlock-detection information previously gathered
>+  // about this `Mutex`. Call this method in debug mode when the lock ordering
>+  // of a `Mutex` changes.
>+  void ForgetDeadlockInfo();
>+
>+  // Mutex::AssertNotHeld()
>+  //
>+  // Return immediately if this thread does not hold this `Mutex` in any
>+  // mode; otherwise, may report an error (typically by crashing with a
>+  // diagnostic), or may return immediately.
>+  //
>+  // Currently this check is performed only if all of:
>+  //    - in debug mode
>+  //    - SetMutexDeadlockDetectionMode() has been set to kReport or kAbort
>+  //    - number of locks concurrently held by this thread is not large.
>+  // are true.
>+  void AssertNotHeld() const;
>+
>+  // Special cases.
>+
>+  // A `MuHow` is a constant that indicates how a lock should be acquired.
>+  // Internal implementation detail.  Clients should ignore.
>+  typedef const struct MuHowS *MuHow;
>+
>+  // Mutex::InternalAttemptToUseMutexInFatalSignalHandler()
>+  //
>+  // Causes the `Mutex` implementation to prepare itself for re-entry caused by
>+  // future use of `Mutex` within a fatal signal handler. This method is
>+  // intended for use only for last-ditch attempts to log crash information.
>+  // It does not guarantee that attempts to use Mutexes within the handler will
>+  // not deadlock; it merely makes other faults less likely.
>+  //
>+  // WARNING:  This routine must be invoked from a signal handler, and the
>+  // signal handler must either loop forever or terminate the process.
>+  // Attempts to return from (or `longjmp` out of) the signal handler once this
>+  // call has been made may cause arbitrary program behaviour including
>+  // crashes and deadlocks.
>+  static void InternalAttemptToUseMutexInFatalSignalHandler();
>+
>+ private:
>+#ifdef ABSL_INTERNAL_USE_NONPROD_MUTEX
>+  friend class CondVar;
>+
>+  synchronization_internal::MutexImpl *impl() { return impl_.get(); }
>+
>+  synchronization_internal::SynchronizationStorage<
>+      synchronization_internal::MutexImpl>
>+      impl_;
>+#else
>+  std::atomic<intptr_t> mu_;  // The Mutex state.
>+
>+  // Post()/Wait() versus associated PerThreadSem; in class for required
>+  // friendship with PerThreadSem.
>+  static inline void IncrementSynchSem(Mutex *mu,
>+                                       base_internal::PerThreadSynch *w);
>+  static inline bool DecrementSynchSem(
>+      Mutex *mu, base_internal::PerThreadSynch *w,
>+      synchronization_internal::KernelTimeout t);
>+
>+  // slow path acquire
>+  void LockSlowLoop(SynchWaitParams *waitp, int flags);
>+  // wrappers around LockSlowLoop()
>+  bool LockSlowWithDeadline(MuHow how, const Condition *cond,
>+                            synchronization_internal::KernelTimeout t,
>+                            int flags);
>+  void LockSlow(MuHow how, const Condition *cond,
>+                int flags) ABSL_ATTRIBUTE_COLD;
>+  // slow path release
>+  void UnlockSlow(SynchWaitParams *waitp) ABSL_ATTRIBUTE_COLD;
>+  // Common code between Await() and AwaitWithTimeout/Deadline()
>+  bool AwaitCommon(const Condition &cond,
>+                   synchronization_internal::KernelTimeout t);
>+  // Attempt to remove thread s from queue.
>+  void TryRemove(base_internal::PerThreadSynch *s);
>+  // Block a thread on mutex.
>+  void Block(base_internal::PerThreadSynch *s);
>+  // Wake a thread; return successor.
>+  base_internal::PerThreadSynch *Wakeup(base_internal::PerThreadSynch *w);
>+
>+  friend class CondVar;   // for access to Trans()/Fer().
>+  void Trans(MuHow how);  // used for CondVar->Mutex transfer
>+  void Fer(
>+      base_internal::PerThreadSynch *w);  // used for CondVar->Mutex transfer
>+#endif
>+
>+  // Catch the error of writing Mutex when intending MutexLock.
>+  Mutex(const volatile Mutex * /*ignored*/) {}  // NOLINT(runtime/explicit)
>+
>+  Mutex(const Mutex&) = delete;
>+  Mutex& operator=(const Mutex&) = delete;
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Mutex RAII Wrappers
>+// -----------------------------------------------------------------------------
>+
>+// MutexLock
>+//
>+// `MutexLock` is a helper class, which acquires and releases a `Mutex` via
>+// RAII.
>+//
>+// Example:
>+//
>+// Class Foo {
>+//
>+//   Foo::Bar* Baz() {
>+//     MutexLock l(&lock_);
>+//     ...
>+//     return bar;
>+//   }
>+//
>+// private:
>+//   Mutex lock_;
>+// };
>+class SCOPED_LOCKABLE MutexLock {
>+ public:
>+  explicit MutexLock(Mutex *mu) EXCLUSIVE_LOCK_FUNCTION(mu) : mu_(mu) {
>+    this->mu_->Lock();
>+  }
>+
>+  MutexLock(const MutexLock &) = delete;  // NOLINT(runtime/mutex)
>+  MutexLock(MutexLock&&) = delete;  // NOLINT(runtime/mutex)
>+  MutexLock& operator=(const MutexLock&) = delete;
>+  MutexLock& operator=(MutexLock&&) = delete;
>+
>+  ~MutexLock() UNLOCK_FUNCTION() { this->mu_->Unlock(); }
>+
>+ private:
>+  Mutex *const mu_;
>+};
>+
>+// ReaderMutexLock
>+//
>+// The `ReaderMutexLock` is a helper class, like `MutexLock`, which acquires and
>+// releases a shared lock on a `Mutex` via RAII.
>+class SCOPED_LOCKABLE ReaderMutexLock {
>+ public:
>+  explicit ReaderMutexLock(Mutex *mu) SHARED_LOCK_FUNCTION(mu)
>+      :  mu_(mu) {
>+    mu->ReaderLock();
>+  }
>+
>+  ReaderMutexLock(const ReaderMutexLock&) = delete;
>+  ReaderMutexLock(ReaderMutexLock&&) = delete;
>+  ReaderMutexLock& operator=(const ReaderMutexLock&) = delete;
>+  ReaderMutexLock& operator=(ReaderMutexLock&&) = delete;
>+
>+  ~ReaderMutexLock() UNLOCK_FUNCTION() {
>+    this->mu_->ReaderUnlock();
>+  }
>+
>+ private:
>+  Mutex *const mu_;
>+};
>+
>+// WriterMutexLock
>+//
>+// The `WriterMutexLock` is a helper class, like `MutexLock`, which acquires and
>+// releases a write (exclusive) lock on a `Mutex` via RAII.
>+class SCOPED_LOCKABLE WriterMutexLock {
>+ public:
>+  explicit WriterMutexLock(Mutex *mu) EXCLUSIVE_LOCK_FUNCTION(mu)
>+      : mu_(mu) {
>+    mu->WriterLock();
>+  }
>+
>+  WriterMutexLock(const WriterMutexLock&) = delete;
>+  WriterMutexLock(WriterMutexLock&&) = delete;
>+  WriterMutexLock& operator=(const WriterMutexLock&) = delete;
>+  WriterMutexLock& operator=(WriterMutexLock&&) = delete;
>+
>+  ~WriterMutexLock() UNLOCK_FUNCTION() {
>+    this->mu_->WriterUnlock();
>+  }
>+
>+ private:
>+  Mutex *const mu_;
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Condition
>+// -----------------------------------------------------------------------------
>+//
>+// As noted above, `Mutex` contains a number of member functions which take a
>+// `Condition` as a argument; clients can wait for conditions to become `true`
>+// before attempting to acquire the mutex. These sections are known as
>+// "condition critical" sections. To use a `Condition`, you simply need to
>+// construct it, and use within an appropriate `Mutex` member function;
>+// everything else in the `Condition` class is an implementation detail.
>+//
>+// A `Condition` is specified as a function pointer which returns a boolean.
>+// `Condition` functions should be pure functions -- their results should depend
>+// only on passed arguments, should not consult any external state (such as
>+// clocks), and should have no side-effects, aside from debug logging. Any
>+// objects that the function may access should be limited to those which are
>+// constant while the mutex is blocked on the condition (e.g. a stack variable),
>+// or objects of state protected explicitly by the mutex.
>+//
>+// No matter which construction is used for `Condition`, the underlying
>+// function pointer / functor / callable must not throw any
>+// exceptions. Correctness of `Mutex` / `Condition` is not guaranteed in
>+// the face of a throwing `Condition`. (When Abseil is allowed to depend
>+// on C++17, these function pointers will be explicitly marked
>+// `noexcept`; until then this requirement cannot be enforced in the
>+// type system.)
>+//
>+// Note: to use a `Condition`, you need only construct it and pass it within the
>+// appropriate `Mutex' member function, such as `Mutex::Await()`.
>+//
>+// Example:
>+//
>+//   // assume count_ is not internal reference count
>+//   int count_ GUARDED_BY(mu_);
>+//
>+//   mu_.LockWhen(Condition(+[](int* count) { return *count == 0; },
>+//         &count_));
>+//
>+// When multiple threads are waiting on exactly the same condition, make sure
>+// that they are constructed with the same parameters (same pointer to function
>+// + arg, or same pointer to object + method), so that the mutex implementation
>+// can avoid redundantly evaluating the same condition for each thread.
>+class Condition {
>+ public:
>+  // A Condition that returns the result of "(*func)(arg)"
>+  Condition(bool (*func)(void *), void *arg);
>+
>+  // Templated version for people who are averse to casts.
>+  //
>+  // To use a lambda, prepend it with unary plus, which converts the lambda
>+  // into a function pointer:
>+  //     Condition(+[](T* t) { return ...; }, arg).
>+  //
>+  // Note: lambdas in this case must contain no bound variables.
>+  //
>+  // See class comment for performance advice.
>+  template<typename T>
>+  Condition(bool (*func)(T *), T *arg);
>+
>+  // Templated version for invoking a method that returns a `bool`.
>+  //
>+  // `Condition(object, &Class::Method)` constructs a `Condition` that evaluates
>+  // `object->Method()`.
>+  //
>+  // Implementation Note: `absl::internal::identity` is used to allow methods to
>+  // come from base classes. A simpler signature like
>+  // `Condition(T*, bool (T::*)())` does not suffice.
>+  template<typename T>
>+  Condition(T *object, bool (absl::internal::identity<T>::type::* method)());
>+
>+  // Same as above, for const members
>+  template<typename T>
>+  Condition(const T *object,
>+            bool (absl::internal::identity<T>::type::* method)() const);
>+
>+  // A Condition that returns the value of `*cond`
>+  explicit Condition(const bool *cond);
>+
>+  // Templated version for invoking a functor that returns a `bool`.
>+  // This approach accepts pointers to non-mutable lambdas, `std::function`,
>+  // the result of` std::bind` and user-defined functors that define
>+  // `bool F::operator()() const`.
>+  //
>+  // Example:
>+  //
>+  //   auto reached = [this, current]() {
>+  //     mu_.AssertReaderHeld();                // For annotalysis.
>+  //     return processed_ >= current;
>+  //   };
>+  //   mu_.Await(Condition(&reached));
>+
>+  // See class comment for performance advice. In particular, if there
>+  // might be more than one waiter for the same condition, make sure
>+  // that all waiters construct the condition with the same pointers.
>+
>+  // Implementation note: The second template parameter ensures that this
>+  // constructor doesn't participate in overload resolution if T doesn't have
>+  // `bool operator() const`.
>+  template <typename T, typename E = decltype(
>+      static_cast<bool (T::*)() const>(&T::operator()))>
>+  explicit Condition(const T *obj)
>+      : Condition(obj, static_cast<bool (T::*)() const>(&T::operator())) {}
>+
>+  // A Condition that always returns `true`.
>+  static const Condition kTrue;
>+
>+  // Evaluates the condition.
>+  bool Eval() const;
>+
>+  // Returns `true` if the two conditions are guaranteed to return the same
>+  // value if evaluated at the same time, `false` if the evaluation *may* return
>+  // different results.
>+  //
>+  // Two `Condition` values are guaranteed equal if both their `func` and `arg`
>+  // components are the same. A null pointer is equivalent to a `true`
>+  // condition.
>+  static bool GuaranteedEqual(const Condition *a, const Condition *b);
>+
>+ private:
>+  typedef bool (*InternalFunctionType)(void * arg);
>+  typedef bool (Condition::*InternalMethodType)();
>+  typedef bool (*InternalMethodCallerType)(void * arg,
>+                                           InternalMethodType internal_method);
>+
>+  bool (*eval_)(const Condition*);  // Actual evaluator
>+  InternalFunctionType function_;   // function taking pointer returning bool
>+  InternalMethodType method_;       // method returning bool
>+  void *arg_;                       // arg of function_ or object of method_
>+
>+  Condition();        // null constructor used only to create kTrue
>+
>+  // Various functions eval_ can point to:
>+  static bool CallVoidPtrFunction(const Condition*);
>+  template <typename T> static bool CastAndCallFunction(const Condition* c);
>+  template <typename T> static bool CastAndCallMethod(const Condition* c);
>+};
>+
>+// -----------------------------------------------------------------------------
>+// CondVar
>+// -----------------------------------------------------------------------------
>+//
>+// A condition variable, reflecting state evaluated separately outside of the
>+// `Mutex` object, which can be signaled to wake callers.
>+// This class is not normally needed; use `Mutex` member functions such as
>+// `Mutex::Await()` and intrinsic `Condition` abstractions. In rare cases
>+// with many threads and many conditions, `CondVar` may be faster.
>+//
>+// The implementation may deliver signals to any condition variable at
>+// any time, even when no call to `Signal()` or `SignalAll()` is made; as a
>+// result, upon being awoken, you must check the logical condition you have
>+// been waiting upon.
>+//
>+// Examples:
>+//
>+// Usage for a thread waiting for some condition C protected by mutex mu:
>+//       mu.Lock();
>+//       while (!C) { cv->Wait(&mu); }        // releases and reacquires mu
>+//       //  C holds; process data
>+//       mu.Unlock();
>+//
>+// Usage to wake T is:
>+//       mu.Lock();
>+//      // process data, possibly establishing C
>+//      if (C) { cv->Signal(); }
>+//      mu.Unlock();
>+//
>+// If C may be useful to more than one waiter, use `SignalAll()` instead of
>+// `Signal()`.
>+//
>+// With this implementation it is efficient to use `Signal()/SignalAll()` inside
>+// the locked region; this usage can make reasoning about your program easier.
>+//
>+class CondVar {
>+ public:
>+  CondVar();
>+  ~CondVar();
>+
>+  // CondVar::Wait()
>+  //
>+  // Atomically releases a `Mutex` and blocks on this condition variable.
>+  // Waits until awakened by a call to `Signal()` or `SignalAll()` (or a
>+  // spurious wakeup), then reacquires the `Mutex` and returns.
>+  //
>+  // Requires and ensures that the current thread holds the `Mutex`.
>+  void Wait(Mutex *mu);
>+
>+  // CondVar::WaitWithTimeout()
>+  //
>+  // Atomically releases a `Mutex` and blocks on this condition variable.
>+  // Waits until awakened by a call to `Signal()` or `SignalAll()` (or a
>+  // spurious wakeup), or until the timeout has expired, then reacquires
>+  // the `Mutex` and returns.
>+  //
>+  // Returns true if the timeout has expired without this `CondVar`
>+  // being signalled in any manner. If both the timeout has expired
>+  // and this `CondVar` has been signalled, the implementation is free
>+  // to return `true` or `false`.
>+  //
>+  // Requires and ensures that the current thread holds the `Mutex`.
>+  bool WaitWithTimeout(Mutex *mu, absl::Duration timeout);
>+
>+  // CondVar::WaitWithDeadline()
>+  //
>+  // Atomically releases a `Mutex` and blocks on this condition variable.
>+  // Waits until awakened by a call to `Signal()` or `SignalAll()` (or a
>+  // spurious wakeup), or until the deadline has passed, then reacquires
>+  // the `Mutex` and returns.
>+  //
>+  // Deadlines in the past are equivalent to an immediate deadline.
>+  //
>+  // Returns true if the deadline has passed without this `CondVar`
>+  // being signalled in any manner. If both the deadline has passed
>+  // and this `CondVar` has been signalled, the implementation is free
>+  // to return `true` or `false`.
>+  //
>+  // Requires and ensures that the current thread holds the `Mutex`.
>+  bool WaitWithDeadline(Mutex *mu, absl::Time deadline);
>+
>+  // CondVar::Signal()
>+  //
>+  // Signal this `CondVar`; wake at least one waiter if one exists.
>+  void Signal();
>+
>+  // CondVar::SignalAll()
>+  //
>+  // Signal this `CondVar`; wake all waiters.
>+  void SignalAll();
>+
>+  // CondVar::EnableDebugLog()
>+  //
>+  // Causes all subsequent uses of this `CondVar` to be logged via
>+  // `ABSL_RAW_LOG(INFO)`. Log entries are tagged with `name` if `name != 0`.
>+  // Note: this method substantially reduces `CondVar` performance.
>+  void EnableDebugLog(const char *name);
>+
>+ private:
>+#ifdef ABSL_INTERNAL_USE_NONPROD_MUTEX
>+  synchronization_internal::CondVarImpl *impl() { return impl_.get(); }
>+  synchronization_internal::SynchronizationStorage<
>+      synchronization_internal::CondVarImpl>
>+      impl_;
>+#else
>+  bool WaitCommon(Mutex *mutex, synchronization_internal::KernelTimeout t);
>+  void Remove(base_internal::PerThreadSynch *s);
>+  void Wakeup(base_internal::PerThreadSynch *w);
>+  std::atomic<intptr_t> cv_;  // Condition variable state.
>+#endif
>+  CondVar(const CondVar&) = delete;
>+  CondVar& operator=(const CondVar&) = delete;
>+};
>+
>+
>+// Variants of MutexLock.
>+//
>+// If you find yourself using one of these, consider instead using
>+// Mutex::Unlock() and/or if-statements for clarity.
>+
>+// MutexLockMaybe
>+//
>+// MutexLockMaybe is like MutexLock, but is a no-op when mu is null.
>+class SCOPED_LOCKABLE MutexLockMaybe {
>+ public:
>+  explicit MutexLockMaybe(Mutex *mu) EXCLUSIVE_LOCK_FUNCTION(mu)
>+      : mu_(mu) { if (this->mu_ != nullptr) { this->mu_->Lock(); } }
>+  ~MutexLockMaybe() UNLOCK_FUNCTION() {
>+    if (this->mu_ != nullptr) { this->mu_->Unlock(); }
>+  }
>+ private:
>+  Mutex *const mu_;
>+  MutexLockMaybe(const MutexLockMaybe&) = delete;
>+  MutexLockMaybe(MutexLockMaybe&&) = delete;
>+  MutexLockMaybe& operator=(const MutexLockMaybe&) = delete;
>+  MutexLockMaybe& operator=(MutexLockMaybe&&) = delete;
>+};
>+
>+// ReleasableMutexLock
>+//
>+// ReleasableMutexLock is like MutexLock, but permits `Release()` of its
>+// mutex before destruction. `Release()` may be called at most once.
>+class SCOPED_LOCKABLE ReleasableMutexLock {
>+ public:
>+  explicit ReleasableMutexLock(Mutex *mu) EXCLUSIVE_LOCK_FUNCTION(mu)
>+      : mu_(mu) {
>+    this->mu_->Lock();
>+  }
>+  ~ReleasableMutexLock() UNLOCK_FUNCTION() {
>+    if (this->mu_ != nullptr) { this->mu_->Unlock(); }
>+  }
>+
>+  void Release() UNLOCK_FUNCTION();
>+
>+ private:
>+  Mutex *mu_;
>+  ReleasableMutexLock(const ReleasableMutexLock&) = delete;
>+  ReleasableMutexLock(ReleasableMutexLock&&) = delete;
>+  ReleasableMutexLock& operator=(const ReleasableMutexLock&) = delete;
>+  ReleasableMutexLock& operator=(ReleasableMutexLock&&) = delete;
>+};
>+
>+#ifdef ABSL_INTERNAL_USE_NONPROD_MUTEX
>+#else
>+inline Mutex::Mutex() : mu_(0) {
>+  ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static);
>+}
>+
>+inline CondVar::CondVar() : cv_(0) {}
>+#endif
>+
>+// static
>+template <typename T>
>+bool Condition::CastAndCallMethod(const Condition *c) {
>+  typedef bool (T::*MemberType)();
>+  MemberType rm = reinterpret_cast<MemberType>(c->method_);
>+  T *x = static_cast<T *>(c->arg_);
>+  return (x->*rm)();
>+}
>+
>+// static
>+template <typename T>
>+bool Condition::CastAndCallFunction(const Condition *c) {
>+  typedef bool (*FuncType)(T *);
>+  FuncType fn = reinterpret_cast<FuncType>(c->function_);
>+  T *x = static_cast<T *>(c->arg_);
>+  return (*fn)(x);
>+}
>+
>+template <typename T>
>+inline Condition::Condition(bool (*func)(T *), T *arg)
>+    : eval_(&CastAndCallFunction<T>),
>+      function_(reinterpret_cast<InternalFunctionType>(func)),
>+      method_(nullptr),
>+      arg_(const_cast<void *>(static_cast<const void *>(arg))) {}
>+
>+template <typename T>
>+inline Condition::Condition(T *object,
>+                            bool (absl::internal::identity<T>::type::*method)())
>+    : eval_(&CastAndCallMethod<T>),
>+      function_(nullptr),
>+      method_(reinterpret_cast<InternalMethodType>(method)),
>+      arg_(object) {}
>+
>+template <typename T>
>+inline Condition::Condition(const T *object,
>+                            bool (absl::internal::identity<T>::type::*method)()
>+                                const)
>+    : eval_(&CastAndCallMethod<T>),
>+      function_(nullptr),
>+      method_(reinterpret_cast<InternalMethodType>(method)),
>+      arg_(reinterpret_cast<void *>(const_cast<T *>(object))) {}
>+
>+// Register a hook for profiling support.
>+//
>+// The function pointer registered here will be called whenever a mutex is
>+// contended.  The callback is given the absl/base/cycleclock.h timestamp when
>+// waiting began.
>+//
>+// Calls to this function do not race or block, but there is no ordering
>+// guaranteed between calls to this function and call to the provided hook.
>+// In particular, the previously registered hook may still be called for some
>+// time after this function returns.
>+void RegisterMutexProfiler(void (*fn)(int64_t wait_timestamp));
>+
>+// Register a hook for Mutex tracing.
>+//
>+// The function pointer registered here will be called whenever a mutex is
>+// contended.  The callback is given an opaque handle to the contended mutex,
>+// an event name, and the number of wait cycles (as measured by
>+// //absl/base/internal/cycleclock.h, and which may not be real
>+// "cycle" counts.)
>+//
>+// The only event name currently sent is "slow release".
>+//
>+// This has the same memory ordering concerns as RegisterMutexProfiler() above.
>+void RegisterMutexTracer(void (*fn)(const char *msg, const void *obj,
>+                              int64_t wait_cycles));
>+
>+// TODO(gfalcon): Combine RegisterMutexProfiler() and RegisterMutexTracer()
>+// into a single interface, since they are only ever called in pairs.
>+
>+// Register a hook for CondVar tracing.
>+//
>+// The function pointer registered here will be called here on various CondVar
>+// events.  The callback is given an opaque handle to the CondVar object and
>+// a std::string identifying the event.  This is thread-safe, but only a single
>+// tracer can be registered.
>+//
>+// Events that can be sent are "Wait", "Unwait", "Signal wakeup", and
>+// "SignalAll wakeup".
>+//
>+// This has the same memory ordering concerns as RegisterMutexProfiler() above.
>+void RegisterCondVarTracer(void (*fn)(const char *msg, const void *cv));
>+
>+// Register a hook for symbolizing stack traces in deadlock detector reports.
>+//
>+// 'pc' is the program counter being symbolized, 'out' is the buffer to write
>+// into, and 'out_size' is the size of the buffer.  This function can return
>+// false if symbolizing failed, or true if a null-terminated symbol was written
>+// to 'out.'
>+//
>+// This has the same memory ordering concerns as RegisterMutexProfiler() above.
>+//
>+// DEPRECATED: The default symbolizer function is absl::Symbolize() and the
>+// ability to register a different hook for symbolizing stack traces will be
>+// removed on or after 2023-05-01.
>+ABSL_DEPRECATED("absl::RegisterSymbolizer() is deprecated and will be removed "
>+                "on or after 2023-05-01")
>+void RegisterSymbolizer(bool (*fn)(const void *pc, char *out, int out_size));
>+
>+// EnableMutexInvariantDebugging()
>+//
>+// Enable or disable global support for Mutex invariant debugging.  If enabled,
>+// then invariant predicates can be registered per-Mutex for debug checking.
>+// See Mutex::EnableInvariantDebugging().
>+void EnableMutexInvariantDebugging(bool enabled);
>+
>+// When in debug mode, and when the feature has been enabled globally, the
>+// implementation will keep track of lock ordering and complain (or optionally
>+// crash) if a cycle is detected in the acquired-before graph.
>+
>+// Possible modes of operation for the deadlock detector in debug mode.
>+enum class OnDeadlockCycle {
>+  kIgnore,  // Neither report on nor attempt to track cycles in lock ordering
>+  kReport,  // Report lock cycles to stderr when detected
>+  kAbort,  // Report lock cycles to stderr when detected, then abort
>+};
>+
>+// SetMutexDeadlockDetectionMode()
>+//
>+// Enable or disable global support for detection of potential deadlocks
>+// due to Mutex lock ordering inversions.  When set to 'kIgnore', tracking of
>+// lock ordering is disabled.  Otherwise, in debug builds, a lock ordering graph
>+// will be maintained internally, and detected cycles will be reported in
>+// the manner chosen here.
>+void SetMutexDeadlockDetectionMode(OnDeadlockCycle mode);
>+
>+}  // namespace absl
>+
>+// In some build configurations we pass --detect-odr-violations to the
>+// gold linker.  This causes it to flag weak symbol overrides as ODR
>+// violations.  Because ODR only applies to C++ and not C,
>+// --detect-odr-violations ignores symbols not mangled with C++ names.
>+// By changing our extension points to be extern "C", we dodge this
>+// check.
>+extern "C" {
>+void AbslInternalMutexYield();
>+}  // extern "C"
>+#endif  // ABSL_SYNCHRONIZATION_MUTEX_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1e019e001ae40274adc8b4e00e7539cd2576deca
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_benchmark.cc
>@@ -0,0 +1,94 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/base/internal/sysinfo.h"
>+#include "absl/synchronization/blocking_counter.h"
>+#include "absl/synchronization/internal/thread_pool.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace {
>+
>+// Measure the overhead of conditions on mutex release (when they must be
>+// evaluated).  Mutex has (some) support for equivalence classes allowing
>+// Conditions with the same function/argument to potentially not be multiply
>+// evaluated.
>+//
>+// num_classes==0 is used for the special case of every waiter being distinct.
>+void BM_ConditionWaiters(benchmark::State& state) {
>+  int num_classes = state.range(0);
>+  int num_waiters = state.range(1);
>+
>+  struct Helper {
>+    static void Waiter(absl::BlockingCounter* init, absl::Mutex* m, int* p) {
>+      init->DecrementCount();
>+      m->LockWhen(absl::Condition(
>+          static_cast<bool (*)(int*)>([](int* v) { return *v == 0; }), p));
>+      m->Unlock();
>+    }
>+  };
>+
>+  if (num_classes == 0) {
>+    // No equivalence classes.
>+    num_classes = num_waiters;
>+  }
>+
>+  absl::BlockingCounter init(num_waiters);
>+  absl::Mutex mu;
>+  std::vector<int> equivalence_classes(num_classes, 1);
>+
>+  // Must be declared last to be destroyed first.
>+  absl::synchronization_internal::ThreadPool pool(num_waiters);
>+
>+  for (int i = 0; i < num_waiters; i++) {
>+    // Mutex considers Conditions with the same function and argument
>+    // to be equivalent.
>+    pool.Schedule([&, i] {
>+      Helper::Waiter(&init, &mu, &equivalence_classes[i % num_classes]);
>+    });
>+  }
>+  init.Wait();
>+
>+  for (auto _ : state) {
>+    mu.Lock();
>+    mu.Unlock();  // Each unlock requires Condition evaluation for our waiters.
>+  }
>+
>+  mu.Lock();
>+  for (int i = 0; i < num_classes; i++) {
>+    equivalence_classes[i] = 0;
>+  }
>+  mu.Unlock();
>+}
>+
>+// Some configurations have higher thread limits than others.
>+#if defined(__linux__) && !defined(THREAD_SANITIZER)
>+constexpr int kMaxConditionWaiters = 8192;
>+#else
>+constexpr int kMaxConditionWaiters = 1024;
>+#endif
>+BENCHMARK(BM_ConditionWaiters)->RangePair(0, 2, 1, kMaxConditionWaiters);
>+
>+void BM_ContendedMutex(benchmark::State& state) {
>+  static absl::Mutex* mu = new absl::Mutex;
>+  for (auto _ : state) {
>+    absl::MutexLock lock(mu);
>+  }
>+}
>+BENCHMARK(BM_ContendedMutex)->Threads(1);
>+BENCHMARK(BM_ContendedMutex)->ThreadPerCpu();
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..b2820e2068d56e9013219c188e64f4613f0ea379
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/mutex_test.cc
>@@ -0,0 +1,1660 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/mutex.h"
>+
>+#ifdef WIN32
>+#include <windows.h>
>+#endif
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cstdlib>
>+#include <functional>
>+#include <memory>
>+#include <random>
>+#include <string>
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/base/internal/sysinfo.h"
>+#include "absl/memory/memory.h"
>+#include "absl/synchronization/internal/thread_pool.h"
>+#include "absl/time/clock.h"
>+#include "absl/time/time.h"
>+
>+namespace {
>+
>+// TODO(dmauro): Replace with a commandline flag.
>+static constexpr bool kExtendedTest = false;
>+
>+std::unique_ptr<absl::synchronization_internal::ThreadPool> CreatePool(
>+    int threads) {
>+  return absl::make_unique<absl::synchronization_internal::ThreadPool>(threads);
>+}
>+
>+std::unique_ptr<absl::synchronization_internal::ThreadPool>
>+CreateDefaultPool() {
>+  return CreatePool(kExtendedTest ? 32 : 10);
>+}
>+
>+// Hack to schedule a function to run on a thread pool thread after a
>+// duration has elapsed.
>+static void ScheduleAfter(absl::synchronization_internal::ThreadPool *tp,
>+                          absl::Duration after,
>+                          const std::function<void()> &func) {
>+  tp->Schedule([func, after] {
>+    absl::SleepFor(after);
>+    func();
>+  });
>+}
>+
>+struct TestContext {
>+  int iterations;
>+  int threads;
>+  int g0;  // global 0
>+  int g1;  // global 1
>+  absl::Mutex mu;
>+  absl::CondVar cv;
>+};
>+
>+// To test whether the invariant check call occurs
>+static std::atomic<bool> invariant_checked;
>+
>+static bool GetInvariantChecked() {
>+  return invariant_checked.load(std::memory_order_relaxed);
>+}
>+
>+static void SetInvariantChecked(bool new_value) {
>+  invariant_checked.store(new_value, std::memory_order_relaxed);
>+}
>+
>+static void CheckSumG0G1(void *v) {
>+  TestContext *cxt = static_cast<TestContext *>(v);
>+  ABSL_RAW_CHECK(cxt->g0 == -cxt->g1, "Error in CheckSumG0G1");
>+  SetInvariantChecked(true);
>+}
>+
>+static void TestMu(TestContext *cxt, int c) {
>+  for (int i = 0; i != cxt->iterations; i++) {
>+    absl::MutexLock l(&cxt->mu);
>+    int a = cxt->g0 + 1;
>+    cxt->g0 = a;
>+    cxt->g1--;
>+  }
>+}
>+
>+static void TestTry(TestContext *cxt, int c) {
>+  for (int i = 0; i != cxt->iterations; i++) {
>+    do {
>+      std::this_thread::yield();
>+    } while (!cxt->mu.TryLock());
>+    int a = cxt->g0 + 1;
>+    cxt->g0 = a;
>+    cxt->g1--;
>+    cxt->mu.Unlock();
>+  }
>+}
>+
>+static void TestR20ms(TestContext *cxt, int c) {
>+  for (int i = 0; i != cxt->iterations; i++) {
>+    absl::ReaderMutexLock l(&cxt->mu);
>+    absl::SleepFor(absl::Milliseconds(20));
>+    cxt->mu.AssertReaderHeld();
>+  }
>+}
>+
>+static void TestRW(TestContext *cxt, int c) {
>+  if ((c & 1) == 0) {
>+    for (int i = 0; i != cxt->iterations; i++) {
>+      absl::WriterMutexLock l(&cxt->mu);
>+      cxt->g0++;
>+      cxt->g1--;
>+      cxt->mu.AssertHeld();
>+      cxt->mu.AssertReaderHeld();
>+    }
>+  } else {
>+    for (int i = 0; i != cxt->iterations; i++) {
>+      absl::ReaderMutexLock l(&cxt->mu);
>+      ABSL_RAW_CHECK(cxt->g0 == -cxt->g1, "Error in TestRW");
>+      cxt->mu.AssertReaderHeld();
>+    }
>+  }
>+}
>+
>+struct MyContext {
>+  int target;
>+  TestContext *cxt;
>+  bool MyTurn();
>+};
>+
>+bool MyContext::MyTurn() {
>+  TestContext *cxt = this->cxt;
>+  return cxt->g0 == this->target || cxt->g0 == cxt->iterations;
>+}
>+
>+static void TestAwait(TestContext *cxt, int c) {
>+  MyContext mc;
>+  mc.target = c;
>+  mc.cxt = cxt;
>+  absl::MutexLock l(&cxt->mu);
>+  cxt->mu.AssertHeld();
>+  while (cxt->g0 < cxt->iterations) {
>+    cxt->mu.Await(absl::Condition(&mc, &MyContext::MyTurn));
>+    ABSL_RAW_CHECK(mc.MyTurn(), "Error in TestAwait");
>+    cxt->mu.AssertHeld();
>+    if (cxt->g0 < cxt->iterations) {
>+      int a = cxt->g0 + 1;
>+      cxt->g0 = a;
>+      mc.target += cxt->threads;
>+    }
>+  }
>+}
>+
>+static void TestSignalAll(TestContext *cxt, int c) {
>+  int target = c;
>+  absl::MutexLock l(&cxt->mu);
>+  cxt->mu.AssertHeld();
>+  while (cxt->g0 < cxt->iterations) {
>+    while (cxt->g0 != target && cxt->g0 != cxt->iterations) {
>+      cxt->cv.Wait(&cxt->mu);
>+    }
>+    if (cxt->g0 < cxt->iterations) {
>+      int a = cxt->g0 + 1;
>+      cxt->g0 = a;
>+      cxt->cv.SignalAll();
>+      target += cxt->threads;
>+    }
>+  }
>+}
>+
>+static void TestSignal(TestContext *cxt, int c) {
>+  ABSL_RAW_CHECK(cxt->threads == 2, "TestSignal should use 2 threads");
>+  int target = c;
>+  absl::MutexLock l(&cxt->mu);
>+  cxt->mu.AssertHeld();
>+  while (cxt->g0 < cxt->iterations) {
>+    while (cxt->g0 != target && cxt->g0 != cxt->iterations) {
>+      cxt->cv.Wait(&cxt->mu);
>+    }
>+    if (cxt->g0 < cxt->iterations) {
>+      int a = cxt->g0 + 1;
>+      cxt->g0 = a;
>+      cxt->cv.Signal();
>+      target += cxt->threads;
>+    }
>+  }
>+}
>+
>+static void TestCVTimeout(TestContext *cxt, int c) {
>+  int target = c;
>+  absl::MutexLock l(&cxt->mu);
>+  cxt->mu.AssertHeld();
>+  while (cxt->g0 < cxt->iterations) {
>+    while (cxt->g0 != target && cxt->g0 != cxt->iterations) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(100));
>+    }
>+    if (cxt->g0 < cxt->iterations) {
>+      int a = cxt->g0 + 1;
>+      cxt->g0 = a;
>+      cxt->cv.SignalAll();
>+      target += cxt->threads;
>+    }
>+  }
>+}
>+
>+static bool G0GE2(TestContext *cxt) { return cxt->g0 >= 2; }
>+
>+static void TestTime(TestContext *cxt, int c, bool use_cv) {
>+  ABSL_RAW_CHECK(cxt->iterations == 1, "TestTime should only use 1 iteration");
>+  ABSL_RAW_CHECK(cxt->threads > 2, "TestTime should use more than 2 threads");
>+  const bool kFalse = false;
>+  absl::Condition false_cond(&kFalse);
>+  absl::Condition g0ge2(G0GE2, cxt);
>+  if (c == 0) {
>+    absl::MutexLock l(&cxt->mu);
>+
>+    absl::Time start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(1));
>+    } else {
>+      ABSL_RAW_CHECK(!cxt->mu.AwaitWithTimeout(false_cond, absl::Seconds(1)),
>+                     "TestTime failed");
>+    }
>+    absl::Duration elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(
>+        absl::Seconds(0.9) <= elapsed && elapsed <= absl::Seconds(2.0),
>+        "TestTime failed");
>+    ABSL_RAW_CHECK(cxt->g0 == 1, "TestTime failed");
>+
>+    start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(1));
>+    } else {
>+      ABSL_RAW_CHECK(!cxt->mu.AwaitWithTimeout(false_cond, absl::Seconds(1)),
>+                     "TestTime failed");
>+    }
>+    elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(
>+        absl::Seconds(0.9) <= elapsed && elapsed <= absl::Seconds(2.0),
>+        "TestTime failed");
>+    cxt->g0++;
>+    if (use_cv) {
>+      cxt->cv.Signal();
>+    }
>+
>+    start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(4));
>+    } else {
>+      ABSL_RAW_CHECK(!cxt->mu.AwaitWithTimeout(false_cond, absl::Seconds(4)),
>+                     "TestTime failed");
>+    }
>+    elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(
>+        absl::Seconds(3.9) <= elapsed && elapsed <= absl::Seconds(6.0),
>+        "TestTime failed");
>+    ABSL_RAW_CHECK(cxt->g0 >= 3, "TestTime failed");
>+
>+    start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(1));
>+    } else {
>+      ABSL_RAW_CHECK(!cxt->mu.AwaitWithTimeout(false_cond, absl::Seconds(1)),
>+                     "TestTime failed");
>+    }
>+    elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(
>+        absl::Seconds(0.9) <= elapsed && elapsed <= absl::Seconds(2.0),
>+        "TestTime failed");
>+    if (use_cv) {
>+      cxt->cv.SignalAll();
>+    }
>+
>+    start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(1));
>+    } else {
>+      ABSL_RAW_CHECK(!cxt->mu.AwaitWithTimeout(false_cond, absl::Seconds(1)),
>+                     "TestTime failed");
>+    }
>+    elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(absl::Seconds(0.9) <= elapsed &&
>+                   elapsed <= absl::Seconds(2.0), "TestTime failed");
>+    ABSL_RAW_CHECK(cxt->g0 == cxt->threads, "TestTime failed");
>+
>+  } else if (c == 1) {
>+    absl::MutexLock l(&cxt->mu);
>+    const absl::Time start = absl::Now();
>+    if (use_cv) {
>+      cxt->cv.WaitWithTimeout(&cxt->mu, absl::Milliseconds(500));
>+    } else {
>+      ABSL_RAW_CHECK(
>+          !cxt->mu.AwaitWithTimeout(false_cond, absl::Milliseconds(500)),
>+          "TestTime failed");
>+    }
>+    const absl::Duration elapsed = absl::Now() - start;
>+    ABSL_RAW_CHECK(
>+        absl::Seconds(0.4) <= elapsed && elapsed <= absl::Seconds(0.9),
>+        "TestTime failed");
>+    cxt->g0++;
>+  } else if (c == 2) {
>+    absl::MutexLock l(&cxt->mu);
>+    if (use_cv) {
>+      while (cxt->g0 < 2) {
>+        cxt->cv.WaitWithTimeout(&cxt->mu, absl::Seconds(100));
>+      }
>+    } else {
>+      ABSL_RAW_CHECK(cxt->mu.AwaitWithTimeout(g0ge2, absl::Seconds(100)),
>+                     "TestTime failed");
>+    }
>+    cxt->g0++;
>+  } else {
>+    absl::MutexLock l(&cxt->mu);
>+    if (use_cv) {
>+      while (cxt->g0 < 2) {
>+        cxt->cv.Wait(&cxt->mu);
>+      }
>+    } else {
>+      cxt->mu.Await(g0ge2);
>+    }
>+    cxt->g0++;
>+  }
>+}
>+
>+static void TestMuTime(TestContext *cxt, int c) { TestTime(cxt, c, false); }
>+
>+static void TestCVTime(TestContext *cxt, int c) { TestTime(cxt, c, true); }
>+
>+static void EndTest(int *c0, int *c1, absl::Mutex *mu, absl::CondVar *cv,
>+                    const std::function<void(int)>& cb) {
>+  mu->Lock();
>+  int c = (*c0)++;
>+  mu->Unlock();
>+  cb(c);
>+  absl::MutexLock l(mu);
>+  (*c1)++;
>+  cv->Signal();
>+}
>+
>+// Code common to RunTest() and RunTestWithInvariantDebugging().
>+static int RunTestCommon(TestContext *cxt, void (*test)(TestContext *cxt, int),
>+                         int threads, int iterations, int operations) {
>+  absl::Mutex mu2;
>+  absl::CondVar cv2;
>+  int c0 = 0;
>+  int c1 = 0;
>+  cxt->g0 = 0;
>+  cxt->g1 = 0;
>+  cxt->iterations = iterations;
>+  cxt->threads = threads;
>+  absl::synchronization_internal::ThreadPool tp(threads);
>+  for (int i = 0; i != threads; i++) {
>+    tp.Schedule(std::bind(&EndTest, &c0, &c1, &mu2, &cv2,
>+                          std::function<void(int)>(
>+                              std::bind(test, cxt, std::placeholders::_1))));
>+  }
>+  mu2.Lock();
>+  while (c1 != threads) {
>+    cv2.Wait(&mu2);
>+  }
>+  mu2.Unlock();
>+  return cxt->g0;
>+}
>+
>+// Basis for the parameterized tests configured below.
>+static int RunTest(void (*test)(TestContext *cxt, int), int threads,
>+                   int iterations, int operations) {
>+  TestContext cxt;
>+  return RunTestCommon(&cxt, test, threads, iterations, operations);
>+}
>+
>+// Like RunTest(), but sets an invariant on the tested Mutex and
>+// verifies that the invariant check happened. The invariant function
>+// will be passed the TestContext* as its arg and must call
>+// SetInvariantChecked(true);
>+#if !defined(ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED)
>+static int RunTestWithInvariantDebugging(void (*test)(TestContext *cxt, int),
>+                                         int threads, int iterations,
>+                                         int operations,
>+                                         void (*invariant)(void *)) {
>+  absl::EnableMutexInvariantDebugging(true);
>+  SetInvariantChecked(false);
>+  TestContext cxt;
>+  cxt.mu.EnableInvariantDebugging(invariant, &cxt);
>+  int ret = RunTestCommon(&cxt, test, threads, iterations, operations);
>+  ABSL_RAW_CHECK(GetInvariantChecked(), "Invariant not checked");
>+  absl::EnableMutexInvariantDebugging(false);  // Restore.
>+  return ret;
>+}
>+#endif
>+
>+// --------------------------------------------------------
>+// Test for fix of bug in TryRemove()
>+struct TimeoutBugStruct {
>+  absl::Mutex mu;
>+  bool a;
>+  int a_waiter_count;
>+};
>+
>+static void WaitForA(TimeoutBugStruct *x) {
>+  x->mu.LockWhen(absl::Condition(&x->a));
>+  x->a_waiter_count--;
>+  x->mu.Unlock();
>+}
>+
>+static bool NoAWaiters(TimeoutBugStruct *x) { return x->a_waiter_count == 0; }
>+
>+// Test that a CondVar.Wait(&mutex) can un-block a call to mutex.Await() in
>+// another thread.
>+TEST(Mutex, CondVarWaitSignalsAwait) {
>+  // Use a struct so the lock annotations apply.
>+  struct {
>+    absl::Mutex barrier_mu;
>+    bool barrier GUARDED_BY(barrier_mu) = false;
>+
>+    absl::Mutex release_mu;
>+    bool release GUARDED_BY(release_mu) = false;
>+    absl::CondVar released_cv;
>+  } state;
>+
>+  auto pool = CreateDefaultPool();
>+
>+  // Thread A.  Sets barrier, waits for release using Mutex::Await, then
>+  // signals released_cv.
>+  pool->Schedule([&state] {
>+    state.release_mu.Lock();
>+
>+    state.barrier_mu.Lock();
>+    state.barrier = true;
>+    state.barrier_mu.Unlock();
>+
>+    state.release_mu.Await(absl::Condition(&state.release));
>+    state.released_cv.Signal();
>+    state.release_mu.Unlock();
>+  });
>+
>+  state.barrier_mu.LockWhen(absl::Condition(&state.barrier));
>+  state.barrier_mu.Unlock();
>+  state.release_mu.Lock();
>+  // Thread A is now blocked on release by way of Mutex::Await().
>+
>+  // Set release.  Calling released_cv.Wait() should un-block thread A,
>+  // which will signal released_cv.  If not, the test will hang.
>+  state.release = true;
>+  state.released_cv.Wait(&state.release_mu);
>+  state.release_mu.Unlock();
>+}
>+
>+// Test that a CondVar.WaitWithTimeout(&mutex) can un-block a call to
>+// mutex.Await() in another thread.
>+TEST(Mutex, CondVarWaitWithTimeoutSignalsAwait) {
>+  // Use a struct so the lock annotations apply.
>+  struct {
>+    absl::Mutex barrier_mu;
>+    bool barrier GUARDED_BY(barrier_mu) = false;
>+
>+    absl::Mutex release_mu;
>+    bool release GUARDED_BY(release_mu) = false;
>+    absl::CondVar released_cv;
>+  } state;
>+
>+  auto pool = CreateDefaultPool();
>+
>+  // Thread A.  Sets barrier, waits for release using Mutex::Await, then
>+  // signals released_cv.
>+  pool->Schedule([&state] {
>+    state.release_mu.Lock();
>+
>+    state.barrier_mu.Lock();
>+    state.barrier = true;
>+    state.barrier_mu.Unlock();
>+
>+    state.release_mu.Await(absl::Condition(&state.release));
>+    state.released_cv.Signal();
>+    state.release_mu.Unlock();
>+  });
>+
>+  state.barrier_mu.LockWhen(absl::Condition(&state.barrier));
>+  state.barrier_mu.Unlock();
>+  state.release_mu.Lock();
>+  // Thread A is now blocked on release by way of Mutex::Await().
>+
>+  // Set release.  Calling released_cv.Wait() should un-block thread A,
>+  // which will signal released_cv.  If not, the test will hang.
>+  state.release = true;
>+  EXPECT_TRUE(
>+      !state.released_cv.WaitWithTimeout(&state.release_mu, absl::Seconds(10)))
>+      << "; Unrecoverable test failure: CondVar::WaitWithTimeout did not "
>+         "unblock the absl::Mutex::Await call in another thread.";
>+
>+  state.release_mu.Unlock();
>+}
>+
>+// Test for regression of a bug in loop of TryRemove()
>+TEST(Mutex, MutexTimeoutBug) {
>+  auto tp = CreateDefaultPool();
>+
>+  TimeoutBugStruct x;
>+  x.a = false;
>+  x.a_waiter_count = 2;
>+  tp->Schedule(std::bind(&WaitForA, &x));
>+  tp->Schedule(std::bind(&WaitForA, &x));
>+  absl::SleepFor(absl::Seconds(1));  // Allow first two threads to hang.
>+  // The skip field of the second will point to the first because there are
>+  // only two.
>+
>+  // Now cause a thread waiting on an always-false to time out
>+  // This would deadlock when the bug was present.
>+  bool always_false = false;
>+  x.mu.LockWhenWithTimeout(absl::Condition(&always_false),
>+                           absl::Milliseconds(500));
>+
>+  // if we get here, the bug is not present.   Cleanup the state.
>+
>+  x.a = true;                                    // wakeup the two waiters on A
>+  x.mu.Await(absl::Condition(&NoAWaiters, &x));  // wait for them to exit
>+  x.mu.Unlock();
>+}
>+
>+struct CondVarWaitDeadlock : testing::TestWithParam<int> {
>+  absl::Mutex mu;
>+  absl::CondVar cv;
>+  bool cond1 = false;
>+  bool cond2 = false;
>+  bool read_lock1;
>+  bool read_lock2;
>+  bool signal_unlocked;
>+
>+  CondVarWaitDeadlock() {
>+    read_lock1 = GetParam() & (1 << 0);
>+    read_lock2 = GetParam() & (1 << 1);
>+    signal_unlocked = GetParam() & (1 << 2);
>+  }
>+
>+  void Waiter1() {
>+    if (read_lock1) {
>+      mu.ReaderLock();
>+      while (!cond1) {
>+        cv.Wait(&mu);
>+      }
>+      mu.ReaderUnlock();
>+    } else {
>+      mu.Lock();
>+      while (!cond1) {
>+        cv.Wait(&mu);
>+      }
>+      mu.Unlock();
>+    }
>+  }
>+
>+  void Waiter2() {
>+    if (read_lock2) {
>+      mu.ReaderLockWhen(absl::Condition(&cond2));
>+      mu.ReaderUnlock();
>+    } else {
>+      mu.LockWhen(absl::Condition(&cond2));
>+      mu.Unlock();
>+    }
>+  }
>+};
>+
>+// Test for a deadlock bug in Mutex::Fer().
>+// The sequence of events that lead to the deadlock is:
>+// 1. waiter1 blocks on cv in read mode (mu bits = 0).
>+// 2. waiter2 blocks on mu in either mode (mu bits = kMuWait).
>+// 3. main thread locks mu, sets cond1, unlocks mu (mu bits = kMuWait).
>+// 4. main thread signals on cv and this eventually calls Mutex::Fer().
>+// Currently Fer wakes waiter1 since mu bits = kMuWait (mutex is unlocked).
>+// Before the bug fix Fer neither woke waiter1 nor queued it on mutex,
>+// which resulted in deadlock.
>+TEST_P(CondVarWaitDeadlock, Test) {
>+  auto waiter1 = CreatePool(1);
>+  auto waiter2 = CreatePool(1);
>+  waiter1->Schedule([this] { this->Waiter1(); });
>+  waiter2->Schedule([this] { this->Waiter2(); });
>+
>+  // Wait while threads block (best-effort is fine).
>+  absl::SleepFor(absl::Milliseconds(100));
>+
>+  // Wake condwaiter.
>+  mu.Lock();
>+  cond1 = true;
>+  if (signal_unlocked) {
>+    mu.Unlock();
>+    cv.Signal();
>+  } else {
>+    cv.Signal();
>+    mu.Unlock();
>+  }
>+  waiter1.reset();  // "join" waiter1
>+
>+  // Wake waiter.
>+  mu.Lock();
>+  cond2 = true;
>+  mu.Unlock();
>+  waiter2.reset();  // "join" waiter2
>+}
>+
>+INSTANTIATE_TEST_CASE_P(CondVarWaitDeadlockTest, CondVarWaitDeadlock,
>+                        ::testing::Range(0, 8),
>+                        ::testing::PrintToStringParamName());
>+
>+// --------------------------------------------------------
>+// Test for fix of bug in DequeueAllWakeable()
>+// Bug was that if there was more than one waiting reader
>+// and all should be woken, the most recently blocked one
>+// would not be.
>+
>+struct DequeueAllWakeableBugStruct {
>+  absl::Mutex mu;
>+  absl::Mutex mu2;       // protects all fields below
>+  int unfinished_count;  // count of unfinished readers; under mu2
>+  bool done1;            // unfinished_count == 0; under mu2
>+  int finished_count;    // count of finished readers, under mu2
>+  bool done2;            // finished_count == 0; under mu2
>+};
>+
>+// Test for regression of a bug in loop of DequeueAllWakeable()
>+static void AcquireAsReader(DequeueAllWakeableBugStruct *x) {
>+  x->mu.ReaderLock();
>+  x->mu2.Lock();
>+  x->unfinished_count--;
>+  x->done1 = (x->unfinished_count == 0);
>+  x->mu2.Unlock();
>+  // make sure that both readers acquired mu before we release it.
>+  absl::SleepFor(absl::Seconds(2));
>+  x->mu.ReaderUnlock();
>+
>+  x->mu2.Lock();
>+  x->finished_count--;
>+  x->done2 = (x->finished_count == 0);
>+  x->mu2.Unlock();
>+}
>+
>+// Test for regression of a bug in loop of DequeueAllWakeable()
>+TEST(Mutex, MutexReaderWakeupBug) {
>+  auto tp = CreateDefaultPool();
>+
>+  DequeueAllWakeableBugStruct x;
>+  x.unfinished_count = 2;
>+  x.done1 = false;
>+  x.finished_count = 2;
>+  x.done2 = false;
>+  x.mu.Lock();  // acquire mu exclusively
>+  // queue two thread that will block on reader locks on x.mu
>+  tp->Schedule(std::bind(&AcquireAsReader, &x));
>+  tp->Schedule(std::bind(&AcquireAsReader, &x));
>+  absl::SleepFor(absl::Seconds(1));  // give time for reader threads to block
>+  x.mu.Unlock();                     // wake them up
>+
>+  // both readers should finish promptly
>+  EXPECT_TRUE(
>+      x.mu2.LockWhenWithTimeout(absl::Condition(&x.done1), absl::Seconds(10)));
>+  x.mu2.Unlock();
>+
>+  EXPECT_TRUE(
>+      x.mu2.LockWhenWithTimeout(absl::Condition(&x.done2), absl::Seconds(10)));
>+  x.mu2.Unlock();
>+}
>+
>+struct LockWhenTestStruct {
>+  absl::Mutex mu1;
>+  bool cond = false;
>+
>+  absl::Mutex mu2;
>+  bool waiting = false;
>+};
>+
>+static bool LockWhenTestIsCond(LockWhenTestStruct* s) {
>+  s->mu2.Lock();
>+  s->waiting = true;
>+  s->mu2.Unlock();
>+  return s->cond;
>+}
>+
>+static void LockWhenTestWaitForIsCond(LockWhenTestStruct* s) {
>+  s->mu1.LockWhen(absl::Condition(&LockWhenTestIsCond, s));
>+  s->mu1.Unlock();
>+}
>+
>+TEST(Mutex, LockWhen) {
>+  LockWhenTestStruct s;
>+
>+  std::thread t(LockWhenTestWaitForIsCond, &s);
>+  s.mu2.LockWhen(absl::Condition(&s.waiting));
>+  s.mu2.Unlock();
>+
>+  s.mu1.Lock();
>+  s.cond = true;
>+  s.mu1.Unlock();
>+
>+  t.join();
>+}
>+
>+// --------------------------------------------------------
>+// The following test requires Mutex::ReaderLock to be a real shared
>+// lock, which is not the case in all builds.
>+#if !defined(ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE)
>+
>+// Test for fix of bug in UnlockSlow() that incorrectly decremented the reader
>+// count when putting a thread to sleep waiting for a false condition when the
>+// lock was not held.
>+
>+// For this bug to strike, we make a thread wait on a free mutex with no
>+// waiters by causing its wakeup condition to be false.   Then the
>+// next two acquirers must be readers.   The bug causes the lock
>+// to be released when one reader unlocks, rather than both.
>+
>+struct ReaderDecrementBugStruct {
>+  bool cond;  // to delay first thread (under mu)
>+  int done;   // reference count (under mu)
>+  absl::Mutex mu;
>+
>+  bool waiting_on_cond;   // under mu2
>+  bool have_reader_lock;  // under mu2
>+  bool complete;          // under mu2
>+  absl::Mutex mu2;        // > mu
>+};
>+
>+// L >= mu, L < mu_waiting_on_cond
>+static bool IsCond(void *v) {
>+  ReaderDecrementBugStruct *x = reinterpret_cast<ReaderDecrementBugStruct *>(v);
>+  x->mu2.Lock();
>+  x->waiting_on_cond = true;
>+  x->mu2.Unlock();
>+  return x->cond;
>+}
>+
>+// L >= mu
>+static bool AllDone(void *v) {
>+  ReaderDecrementBugStruct *x = reinterpret_cast<ReaderDecrementBugStruct *>(v);
>+  return x->done == 0;
>+}
>+
>+// L={}
>+static void WaitForCond(ReaderDecrementBugStruct *x) {
>+  absl::Mutex dummy;
>+  absl::MutexLock l(&dummy);
>+  x->mu.LockWhen(absl::Condition(&IsCond, x));
>+  x->done--;
>+  x->mu.Unlock();
>+}
>+
>+// L={}
>+static void GetReadLock(ReaderDecrementBugStruct *x) {
>+  x->mu.ReaderLock();
>+  x->mu2.Lock();
>+  x->have_reader_lock = true;
>+  x->mu2.Await(absl::Condition(&x->complete));
>+  x->mu2.Unlock();
>+  x->mu.ReaderUnlock();
>+  x->mu.Lock();
>+  x->done--;
>+  x->mu.Unlock();
>+}
>+
>+// Test for reader counter being decremented incorrectly by waiter
>+// with false condition.
>+TEST(Mutex, MutexReaderDecrementBug) NO_THREAD_SAFETY_ANALYSIS {
>+  ReaderDecrementBugStruct x;
>+  x.cond = false;
>+  x.waiting_on_cond = false;
>+  x.have_reader_lock = false;
>+  x.complete = false;
>+  x.done = 2;  // initial ref count
>+
>+  // Run WaitForCond() and wait for it to sleep
>+  std::thread thread1(WaitForCond, &x);
>+  x.mu2.LockWhen(absl::Condition(&x.waiting_on_cond));
>+  x.mu2.Unlock();
>+
>+  // Run GetReadLock(), and wait for it to get the read lock
>+  std::thread thread2(GetReadLock, &x);
>+  x.mu2.LockWhen(absl::Condition(&x.have_reader_lock));
>+  x.mu2.Unlock();
>+
>+  // Get the reader lock ourselves, and release it.
>+  x.mu.ReaderLock();
>+  x.mu.ReaderUnlock();
>+
>+  // The lock should be held in read mode by GetReadLock().
>+  // If we have the bug, the lock will be free.
>+  x.mu.AssertReaderHeld();
>+
>+  // Wake up all the threads.
>+  x.mu2.Lock();
>+  x.complete = true;
>+  x.mu2.Unlock();
>+
>+  // TODO(delesley): turn on analysis once lock upgrading is supported.
>+  // (This call upgrades the lock from shared to exclusive.)
>+  x.mu.Lock();
>+  x.cond = true;
>+  x.mu.Await(absl::Condition(&AllDone, &x));
>+  x.mu.Unlock();
>+
>+  thread1.join();
>+  thread2.join();
>+}
>+#endif  // !ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE
>+
>+// Test that we correctly handle the situation when a lock is
>+// held and then destroyed (w/o unlocking).
>+TEST(Mutex, LockedMutexDestructionBug) NO_THREAD_SAFETY_ANALYSIS {
>+  for (int i = 0; i != 10; i++) {
>+    // Create, lock and destroy 10 locks.
>+    const int kNumLocks = 10;
>+    auto mu = absl::make_unique<absl::Mutex[]>(kNumLocks);
>+    for (int j = 0; j != kNumLocks; j++) {
>+      if ((j % 2) == 0) {
>+        mu[j].WriterLock();
>+      } else {
>+        mu[j].ReaderLock();
>+      }
>+    }
>+  }
>+}
>+
>+// --------------------------------------------------------
>+// Test for bug with pattern of readers using a condvar.  The bug was that if a
>+// reader went to sleep on a condition variable while one or more other readers
>+// held the lock, but there were no waiters, the reader count (held in the
>+// mutex word) would be lost.  (This is because Enqueue() had at one time
>+// always placed the thread on the Mutex queue.  Later (CL 4075610), to
>+// tolerate re-entry into Mutex from a Condition predicate, Enqueue() was
>+// changed so that it could also place a thread on a condition-variable.  This
>+// introduced the case where Enqueue() returned with an empty queue, and this
>+// case was handled incorrectly in one place.)
>+
>+static void ReaderForReaderOnCondVar(absl::Mutex *mu, absl::CondVar *cv,
>+                                     int *running) {
>+  std::random_device dev;
>+  std::mt19937 gen(dev());
>+  std::uniform_int_distribution<int> random_millis(0, 15);
>+  mu->ReaderLock();
>+  while (*running == 3) {
>+    absl::SleepFor(absl::Milliseconds(random_millis(gen)));
>+    cv->WaitWithTimeout(mu, absl::Milliseconds(random_millis(gen)));
>+  }
>+  mu->ReaderUnlock();
>+  mu->Lock();
>+  (*running)--;
>+  mu->Unlock();
>+}
>+
>+struct True {
>+  template <class... Args>
>+  bool operator()(Args...) const {
>+    return true;
>+  }
>+};
>+
>+struct DerivedTrue : True {};
>+
>+TEST(Mutex, FunctorCondition) {
>+  {  // Variadic
>+    True f;
>+    EXPECT_TRUE(absl::Condition(&f).Eval());
>+  }
>+
>+  {  // Inherited
>+    DerivedTrue g;
>+    EXPECT_TRUE(absl::Condition(&g).Eval());
>+  }
>+
>+  {  // lambda
>+    int value = 3;
>+    auto is_zero = [&value] { return value == 0; };
>+    absl::Condition c(&is_zero);
>+    EXPECT_FALSE(c.Eval());
>+    value = 0;
>+    EXPECT_TRUE(c.Eval());
>+  }
>+
>+  {  // bind
>+    int value = 0;
>+    auto is_positive = std::bind(std::less<int>(), 0, std::cref(value));
>+    absl::Condition c(&is_positive);
>+    EXPECT_FALSE(c.Eval());
>+    value = 1;
>+    EXPECT_TRUE(c.Eval());
>+  }
>+
>+  {  // std::function
>+    int value = 3;
>+    std::function<bool()> is_zero = [&value] { return value == 0; };
>+    absl::Condition c(&is_zero);
>+    EXPECT_FALSE(c.Eval());
>+    value = 0;
>+    EXPECT_TRUE(c.Eval());
>+  }
>+}
>+
>+static bool IntIsZero(int *x) { return *x == 0; }
>+
>+// Test for reader waiting condition variable when there are other readers
>+// but no waiters.
>+TEST(Mutex, TestReaderOnCondVar) {
>+  auto tp = CreateDefaultPool();
>+  absl::Mutex mu;
>+  absl::CondVar cv;
>+  int running = 3;
>+  tp->Schedule(std::bind(&ReaderForReaderOnCondVar, &mu, &cv, &running));
>+  tp->Schedule(std::bind(&ReaderForReaderOnCondVar, &mu, &cv, &running));
>+  absl::SleepFor(absl::Seconds(2));
>+  mu.Lock();
>+  running--;
>+  mu.Await(absl::Condition(&IntIsZero, &running));
>+  mu.Unlock();
>+}
>+
>+// --------------------------------------------------------
>+struct AcquireFromConditionStruct {
>+  absl::Mutex mu0;   // protects value, done
>+  int value;         // times condition function is called; under mu0,
>+  bool done;         // done with test?  under mu0
>+  absl::Mutex mu1;   // used to attempt to mess up state of mu0
>+  absl::CondVar cv;  // so the condition function can be invoked from
>+                     // CondVar::Wait().
>+};
>+
>+static bool ConditionWithAcquire(AcquireFromConditionStruct *x) {
>+  x->value++;  // count times this function is called
>+
>+  if (x->value == 2 || x->value == 3) {
>+    // On the second and third invocation of this function, sleep for 100ms,
>+    // but with the side-effect of altering the state of a Mutex other than
>+    // than one for which this is a condition.  The spec now explicitly allows
>+    // this side effect; previously it did not.  it was illegal.
>+    bool always_false = false;
>+    x->mu1.LockWhenWithTimeout(absl::Condition(&always_false),
>+                               absl::Milliseconds(100));
>+    x->mu1.Unlock();
>+  }
>+  ABSL_RAW_CHECK(x->value < 4, "should not be invoked a fourth time");
>+
>+  // We arrange for the condition to return true on only the 2nd and 3rd calls.
>+  return x->value == 2 || x->value == 3;
>+}
>+
>+static void WaitForCond2(AcquireFromConditionStruct *x) {
>+  // wait for cond0 to become true
>+  x->mu0.LockWhen(absl::Condition(&ConditionWithAcquire, x));
>+  x->done = true;
>+  x->mu0.Unlock();
>+}
>+
>+// Test for Condition whose function acquires other Mutexes
>+TEST(Mutex, AcquireFromCondition) {
>+  auto tp = CreateDefaultPool();
>+
>+  AcquireFromConditionStruct x;
>+  x.value = 0;
>+  x.done = false;
>+  tp->Schedule(
>+      std::bind(&WaitForCond2, &x));  // run WaitForCond2() in a thread T
>+  // T will hang because the first invocation of ConditionWithAcquire() will
>+  // return false.
>+  absl::SleepFor(absl::Milliseconds(500));  // allow T time to hang
>+
>+  x.mu0.Lock();
>+  x.cv.WaitWithTimeout(&x.mu0, absl::Milliseconds(500));  // wake T
>+  // T will be woken because the Wait() will call ConditionWithAcquire()
>+  // for the second time, and it will return true.
>+
>+  x.mu0.Unlock();
>+
>+  // T will then acquire the lock and recheck its own condition.
>+  // It will find the condition true, as this is the third invocation,
>+  // but the use of another Mutex by the calling function will
>+  // cause the old mutex implementation to think that the outer
>+  // LockWhen() has timed out because the inner LockWhenWithTimeout() did.
>+  // T will then check the condition a fourth time because it finds a
>+  // timeout occurred.  This should not happen in the new
>+  // implementation that allows the Condition function to use Mutexes.
>+
>+  // It should also succeed, even though the Condition function
>+  // is being invoked from CondVar::Wait, and thus this thread
>+  // is conceptually waiting both on the condition variable, and on mu2.
>+
>+  x.mu0.LockWhen(absl::Condition(&x.done));
>+  x.mu0.Unlock();
>+}
>+
>+// The deadlock detector is not part of non-prod builds, so do not test it.
>+#if !defined(ABSL_INTERNAL_USE_NONPROD_MUTEX)
>+
>+TEST(Mutex, DeadlockDetector) {
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
>+
>+  // check that we can call ForgetDeadlockInfo() on a lock with the lock held
>+  absl::Mutex m1;
>+  absl::Mutex m2;
>+  absl::Mutex m3;
>+  absl::Mutex m4;
>+
>+  m1.Lock();  // m1 gets ID1
>+  m2.Lock();  // m2 gets ID2
>+  m3.Lock();  // m3 gets ID3
>+  m3.Unlock();
>+  m2.Unlock();
>+  // m1 still held
>+  m1.ForgetDeadlockInfo();  // m1 loses ID
>+  m2.Lock();                // m2 gets ID2
>+  m3.Lock();                // m3 gets ID3
>+  m4.Lock();                // m4 gets ID4
>+  m3.Unlock();
>+  m2.Unlock();
>+  m4.Unlock();
>+  m1.Unlock();
>+}
>+
>+// Bazel has a test "warning" file that programs can write to if the
>+// test should pass with a warning.  This class disables the warning
>+// file until it goes out of scope.
>+class ScopedDisableBazelTestWarnings {
>+ public:
>+  ScopedDisableBazelTestWarnings() {
>+#ifdef WIN32
>+    char file[MAX_PATH];
>+    if (GetEnvironmentVariable(kVarName, file, sizeof(file)) < sizeof(file)) {
>+      warnings_output_file_ = file;
>+      SetEnvironmentVariable(kVarName, nullptr);
>+    }
>+#else
>+    const char *file = getenv(kVarName);
>+    if (file != nullptr) {
>+      warnings_output_file_ = file;
>+      unsetenv(kVarName);
>+    }
>+#endif
>+  }
>+
>+  ~ScopedDisableBazelTestWarnings() {
>+    if (!warnings_output_file_.empty()) {
>+#ifdef WIN32
>+      SetEnvironmentVariable(kVarName, warnings_output_file_.c_str());
>+#else
>+      setenv(kVarName, warnings_output_file_.c_str(), 0);
>+#endif
>+    }
>+  }
>+
>+ private:
>+  static const char kVarName[];
>+  std::string warnings_output_file_;
>+};
>+const char ScopedDisableBazelTestWarnings::kVarName[] =
>+    "TEST_WARNINGS_OUTPUT_FILE";
>+
>+TEST(Mutex, DeadlockDetectorBazelWarning) {
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kReport);
>+
>+  // Cause deadlock detection to detect something, if it's
>+  // compiled in and enabled.  But turn off the bazel warning.
>+  ScopedDisableBazelTestWarnings disable_bazel_test_warnings;
>+
>+  absl::Mutex mu0;
>+  absl::Mutex mu1;
>+  bool got_mu0 = mu0.TryLock();
>+  mu1.Lock();  // acquire mu1 while holding mu0
>+  if (got_mu0) {
>+    mu0.Unlock();
>+  }
>+  if (mu0.TryLock()) {  // try lock shouldn't cause deadlock detector to fire
>+    mu0.Unlock();
>+  }
>+  mu0.Lock();  // acquire mu0 while holding mu1; should get one deadlock
>+               // report here
>+  mu0.Unlock();
>+  mu1.Unlock();
>+
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
>+}
>+
>+// This test is tagged with NO_THREAD_SAFETY_ANALYSIS because the
>+// annotation-based static thread-safety analysis is not currently
>+// predicate-aware and cannot tell if the two for-loops that acquire and
>+// release the locks have the same predicates.
>+TEST(Mutex, DeadlockDetectorStessTest) NO_THREAD_SAFETY_ANALYSIS {
>+  // Stress test: Here we create a large number of locks and use all of them.
>+  // If a deadlock detector keeps a full graph of lock acquisition order,
>+  // it will likely be too slow for this test to pass.
>+  const int n_locks = 1 << 17;
>+  auto array_of_locks = absl::make_unique<absl::Mutex[]>(n_locks);
>+  for (int i = 0; i < n_locks; i++) {
>+    int end = std::min(n_locks, i + 5);
>+    // acquire and then release locks i, i+1, ..., i+4
>+    for (int j = i; j < end; j++) {
>+      array_of_locks[j].Lock();
>+    }
>+    for (int j = i; j < end; j++) {
>+      array_of_locks[j].Unlock();
>+    }
>+  }
>+}
>+
>+TEST(Mutex, DeadlockIdBug) NO_THREAD_SAFETY_ANALYSIS {
>+  // Test a scenario where a cached deadlock graph node id in the
>+  // list of held locks is not invalidated when the corresponding
>+  // mutex is deleted.
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
>+  // Mutex that will be destroyed while being held
>+  absl::Mutex *a = new absl::Mutex;
>+  // Other mutexes needed by test
>+  absl::Mutex b, c;
>+
>+  // Hold mutex.
>+  a->Lock();
>+
>+  // Force deadlock id assignment by acquiring another lock.
>+  b.Lock();
>+  b.Unlock();
>+
>+  // Delete the mutex. The Mutex destructor tries to remove held locks,
>+  // but the attempt isn't foolproof.  It can fail if:
>+  //   (a) Deadlock detection is currently disabled.
>+  //   (b) The destruction is from another thread.
>+  // We exploit (a) by temporarily disabling deadlock detection.
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kIgnore);
>+  delete a;
>+  absl::SetMutexDeadlockDetectionMode(absl::OnDeadlockCycle::kAbort);
>+
>+  // Now acquire another lock which will force a deadlock id assignment.
>+  // We should end up getting assigned the same deadlock id that was
>+  // freed up when "a" was deleted, which will cause a spurious deadlock
>+  // report if the held lock entry for "a" was not invalidated.
>+  c.Lock();
>+  c.Unlock();
>+}
>+#endif  // !defined(ABSL_INTERNAL_USE_NONPROD_MUTEX)
>+
>+// --------------------------------------------------------
>+// Test for timeouts/deadlines on condition waits that are specified using
>+// absl::Duration and absl::Time.  For each waiting function we test with
>+// a timeout/deadline that has already expired/passed, one that is infinite
>+// and so never expires/passes, and one that will expire/pass in the near
>+// future.
>+
>+static absl::Duration TimeoutTestAllowedSchedulingDelay() {
>+  // Note: we use a function here because Microsoft Visual Studio fails to
>+  // properly initialize constexpr static absl::Duration variables.
>+  return absl::Milliseconds(150);
>+}
>+
>+// Returns true if `actual_delay` is close enough to `expected_delay` to pass
>+// the timeouts/deadlines test.  Otherwise, logs warnings and returns false.
>+ABSL_MUST_USE_RESULT
>+static bool DelayIsWithinBounds(absl::Duration expected_delay,
>+                                absl::Duration actual_delay) {
>+  bool pass = true;
>+  // Do not allow the observed delay to be less than expected.  This may occur
>+  // in practice due to clock skew or when the synchronization primitives use a
>+  // different clock than absl::Now(), but these cases should be handled by the
>+  // the retry mechanism in each TimeoutTest.
>+  if (actual_delay < expected_delay) {
>+    ABSL_RAW_LOG(WARNING,
>+                 "Actual delay %s was too short, expected %s (difference %s)",
>+                 absl::FormatDuration(actual_delay).c_str(),
>+                 absl::FormatDuration(expected_delay).c_str(),
>+                 absl::FormatDuration(actual_delay - expected_delay).c_str());
>+    pass = false;
>+  }
>+  // If the expected delay is <= zero then allow a small error tolerance, since
>+  // we do not expect context switches to occur during test execution.
>+  // Otherwise, thread scheduling delays may be substantial in rare cases, so
>+  // tolerate up to kTimeoutTestAllowedSchedulingDelay of error.
>+  absl::Duration tolerance = expected_delay <= absl::ZeroDuration()
>+                                 ? absl::Milliseconds(10)
>+                                 : TimeoutTestAllowedSchedulingDelay();
>+  if (actual_delay > expected_delay + tolerance) {
>+    ABSL_RAW_LOG(WARNING,
>+                 "Actual delay %s was too long, expected %s (difference %s)",
>+                 absl::FormatDuration(actual_delay).c_str(),
>+                 absl::FormatDuration(expected_delay).c_str(),
>+                 absl::FormatDuration(actual_delay - expected_delay).c_str());
>+    pass = false;
>+  }
>+  return pass;
>+}
>+
>+// Parameters for TimeoutTest, below.
>+struct TimeoutTestParam {
>+  // The file and line number (used for logging purposes only).
>+  const char *from_file;
>+  int from_line;
>+
>+  // Should the absolute deadline API based on absl::Time be tested?  If false,
>+  // the relative deadline API based on absl::Duration is tested.
>+  bool use_absolute_deadline;
>+
>+  // The deadline/timeout used when calling the API being tested
>+  // (e.g. Mutex::LockWhenWithDeadline).
>+  absl::Duration wait_timeout;
>+
>+  // The delay before the condition will be set true by the test code.  If zero
>+  // or negative, the condition is set true immediately (before calling the API
>+  // being tested).  Otherwise, if infinite, the condition is never set true.
>+  // Otherwise a closure is scheduled for the future that sets the condition
>+  // true.
>+  absl::Duration satisfy_condition_delay;
>+
>+  // The expected result of the condition after the call to the API being
>+  // tested. Generally `true` means the condition was true when the API returns,
>+  // `false` indicates an expected timeout.
>+  bool expected_result;
>+
>+  // The expected delay before the API under test returns.  This is inherently
>+  // flaky, so some slop is allowed (see `DelayIsWithinBounds` above), and the
>+  // test keeps trying indefinitely until this constraint passes.
>+  absl::Duration expected_delay;
>+};
>+
>+// Print a `TimeoutTestParam` to a debug log.
>+std::ostream &operator<<(std::ostream &os, const TimeoutTestParam &param) {
>+  return os << "from: " << param.from_file << ":" << param.from_line
>+            << " use_absolute_deadline: "
>+            << (param.use_absolute_deadline ? "true" : "false")
>+            << " wait_timeout: " << param.wait_timeout
>+            << " satisfy_condition_delay: " << param.satisfy_condition_delay
>+            << " expected_result: "
>+            << (param.expected_result ? "true" : "false")
>+            << " expected_delay: " << param.expected_delay;
>+}
>+
>+std::string FormatString(const TimeoutTestParam &param) {
>+  std::ostringstream os;
>+  os << param;
>+  return os.str();
>+}
>+
>+// Like `thread::Executor::ScheduleAt` except:
>+// a) Delays zero or negative are executed immediately in the current thread.
>+// b) Infinite delays are never scheduled.
>+// c) Calls this test's `ScheduleAt` helper instead of using `pool` directly.
>+static void RunAfterDelay(absl::Duration delay,
>+                          absl::synchronization_internal::ThreadPool *pool,
>+                          const std::function<void()> &callback) {
>+  if (delay <= absl::ZeroDuration()) {
>+    callback();  // immediate
>+  } else if (delay != absl::InfiniteDuration()) {
>+    ScheduleAfter(pool, delay, callback);
>+  }
>+}
>+
>+class TimeoutTest : public ::testing::Test,
>+                    public ::testing::WithParamInterface<TimeoutTestParam> {};
>+
>+std::vector<TimeoutTestParam> MakeTimeoutTestParamValues() {
>+  // The `finite` delay is a finite, relatively short, delay.  We make it larger
>+  // than our allowed scheduling delay (slop factor) to avoid confusion when
>+  // diagnosing test failures.  The other constants here have clear meanings.
>+  const absl::Duration finite = 3 * TimeoutTestAllowedSchedulingDelay();
>+  const absl::Duration never = absl::InfiniteDuration();
>+  const absl::Duration negative = -absl::InfiniteDuration();
>+  const absl::Duration immediate = absl::ZeroDuration();
>+
>+  // Every test case is run twice; once using the absolute deadline API and once
>+  // using the relative timeout API.
>+  std::vector<TimeoutTestParam> values;
>+  for (bool use_absolute_deadline : {false, true}) {
>+    // Tests with a negative timeout (deadline in the past), which should
>+    // immediately return current state of the condition.
>+
>+    // The condition is already true:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        negative,   // wait_timeout
>+        immediate,  // satisfy_condition_delay
>+        true,       // expected_result
>+        immediate,  // expected_delay
>+    });
>+
>+    // The condition becomes true, but the timeout has already expired:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        negative,  // wait_timeout
>+        finite,    // satisfy_condition_delay
>+        false,     // expected_result
>+        immediate  // expected_delay
>+    });
>+
>+    // The condition never becomes true:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        negative,  // wait_timeout
>+        never,     // satisfy_condition_delay
>+        false,     // expected_result
>+        immediate  // expected_delay
>+    });
>+
>+    // Tests with an infinite timeout (deadline in the infinite future), which
>+    // should only return when the condition becomes true.
>+
>+    // The condition is already true:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        never,      // wait_timeout
>+        immediate,  // satisfy_condition_delay
>+        true,       // expected_result
>+        immediate   // expected_delay
>+    });
>+
>+    // The condition becomes true before the (infinite) expiry:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        never,   // wait_timeout
>+        finite,  // satisfy_condition_delay
>+        true,    // expected_result
>+        finite,  // expected_delay
>+    });
>+
>+    // Tests with a (small) finite timeout (deadline soon), with the condition
>+    // becoming true both before and after its expiry.
>+
>+    // The condition is already true:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        never,      // wait_timeout
>+        immediate,  // satisfy_condition_delay
>+        true,       // expected_result
>+        immediate   // expected_delay
>+    });
>+
>+    // The condition becomes true before the expiry:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        finite * 2,  // wait_timeout
>+        finite,      // satisfy_condition_delay
>+        true,        // expected_result
>+        finite       // expected_delay
>+    });
>+
>+    // The condition becomes true, but the timeout has already expired:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        finite,      // wait_timeout
>+        finite * 2,  // satisfy_condition_delay
>+        false,       // expected_result
>+        finite       // expected_delay
>+    });
>+
>+    // The condition never becomes true:
>+    values.push_back(TimeoutTestParam{
>+        __FILE__, __LINE__, use_absolute_deadline,
>+        finite,  // wait_timeout
>+        never,   // satisfy_condition_delay
>+        false,   // expected_result
>+        finite   // expected_delay
>+    });
>+  }
>+  return values;
>+}
>+
>+// Instantiate `TimeoutTest` with `MakeTimeoutTestParamValues()`.
>+INSTANTIATE_TEST_CASE_P(All, TimeoutTest,
>+                        testing::ValuesIn(MakeTimeoutTestParamValues()));
>+
>+TEST_P(TimeoutTest, Await) {
>+  const TimeoutTestParam params = GetParam();
>+  ABSL_RAW_LOG(INFO, "Params: %s", FormatString(params).c_str());
>+
>+  // Because this test asserts bounds on scheduling delays it is flaky.  To
>+  // compensate it loops forever until it passes.  Failures express as test
>+  // timeouts, in which case the test log can be used to diagnose the issue.
>+  for (int attempt = 1;; ++attempt) {
>+    ABSL_RAW_LOG(INFO, "Attempt %d", attempt);
>+
>+    absl::Mutex mu;
>+    bool value = false;  // condition value (under mu)
>+
>+    std::unique_ptr<absl::synchronization_internal::ThreadPool> pool =
>+        CreateDefaultPool();
>+    RunAfterDelay(params.satisfy_condition_delay, pool.get(), [&] {
>+      absl::MutexLock l(&mu);
>+      value = true;
>+    });
>+
>+    absl::MutexLock lock(&mu);
>+    absl::Time start_time = absl::Now();
>+    absl::Condition cond(&value);
>+    bool result =
>+        params.use_absolute_deadline
>+            ? mu.AwaitWithDeadline(cond, start_time + params.wait_timeout)
>+            : mu.AwaitWithTimeout(cond, params.wait_timeout);
>+    if (DelayIsWithinBounds(params.expected_delay, absl::Now() - start_time)) {
>+      EXPECT_EQ(params.expected_result, result);
>+      break;
>+    }
>+  }
>+}
>+
>+TEST_P(TimeoutTest, LockWhen) {
>+  const TimeoutTestParam params = GetParam();
>+  ABSL_RAW_LOG(INFO, "Params: %s", FormatString(params).c_str());
>+
>+  // Because this test asserts bounds on scheduling delays it is flaky.  To
>+  // compensate it loops forever until it passes.  Failures express as test
>+  // timeouts, in which case the test log can be used to diagnose the issue.
>+  for (int attempt = 1;; ++attempt) {
>+    ABSL_RAW_LOG(INFO, "Attempt %d", attempt);
>+
>+    absl::Mutex mu;
>+    bool value = false;  // condition value (under mu)
>+
>+    std::unique_ptr<absl::synchronization_internal::ThreadPool> pool =
>+        CreateDefaultPool();
>+    RunAfterDelay(params.satisfy_condition_delay, pool.get(), [&] {
>+      absl::MutexLock l(&mu);
>+      value = true;
>+    });
>+
>+    absl::Time start_time = absl::Now();
>+    absl::Condition cond(&value);
>+    bool result =
>+        params.use_absolute_deadline
>+            ? mu.LockWhenWithDeadline(cond, start_time + params.wait_timeout)
>+            : mu.LockWhenWithTimeout(cond, params.wait_timeout);
>+    mu.Unlock();
>+
>+    if (DelayIsWithinBounds(params.expected_delay, absl::Now() - start_time)) {
>+      EXPECT_EQ(params.expected_result, result);
>+      break;
>+    }
>+  }
>+}
>+
>+TEST_P(TimeoutTest, ReaderLockWhen) {
>+  const TimeoutTestParam params = GetParam();
>+  ABSL_RAW_LOG(INFO, "Params: %s", FormatString(params).c_str());
>+
>+  // Because this test asserts bounds on scheduling delays it is flaky.  To
>+  // compensate it loops forever until it passes.  Failures express as test
>+  // timeouts, in which case the test log can be used to diagnose the issue.
>+  for (int attempt = 0;; ++attempt) {
>+    ABSL_RAW_LOG(INFO, "Attempt %d", attempt);
>+
>+    absl::Mutex mu;
>+    bool value = false;  // condition value (under mu)
>+
>+    std::unique_ptr<absl::synchronization_internal::ThreadPool> pool =
>+        CreateDefaultPool();
>+    RunAfterDelay(params.satisfy_condition_delay, pool.get(), [&] {
>+      absl::MutexLock l(&mu);
>+      value = true;
>+    });
>+
>+    absl::Time start_time = absl::Now();
>+    bool result =
>+        params.use_absolute_deadline
>+            ? mu.ReaderLockWhenWithDeadline(absl::Condition(&value),
>+                                            start_time + params.wait_timeout)
>+            : mu.ReaderLockWhenWithTimeout(absl::Condition(&value),
>+                                           params.wait_timeout);
>+    mu.ReaderUnlock();
>+
>+    if (DelayIsWithinBounds(params.expected_delay, absl::Now() - start_time)) {
>+      EXPECT_EQ(params.expected_result, result);
>+      break;
>+    }
>+  }
>+}
>+
>+TEST_P(TimeoutTest, Wait) {
>+  const TimeoutTestParam params = GetParam();
>+  ABSL_RAW_LOG(INFO, "Params: %s", FormatString(params).c_str());
>+
>+  // Because this test asserts bounds on scheduling delays it is flaky.  To
>+  // compensate it loops forever until it passes.  Failures express as test
>+  // timeouts, in which case the test log can be used to diagnose the issue.
>+  for (int attempt = 0;; ++attempt) {
>+    ABSL_RAW_LOG(INFO, "Attempt %d", attempt);
>+
>+    absl::Mutex mu;
>+    bool value = false;  // condition value (under mu)
>+    absl::CondVar cv;    // signals a change of `value`
>+
>+    std::unique_ptr<absl::synchronization_internal::ThreadPool> pool =
>+        CreateDefaultPool();
>+    RunAfterDelay(params.satisfy_condition_delay, pool.get(), [&] {
>+      absl::MutexLock l(&mu);
>+      value = true;
>+      cv.Signal();
>+    });
>+
>+    absl::MutexLock lock(&mu);
>+    absl::Time start_time = absl::Now();
>+    absl::Duration timeout = params.wait_timeout;
>+    absl::Time deadline = start_time + timeout;
>+    while (!value) {
>+      if (params.use_absolute_deadline ? cv.WaitWithDeadline(&mu, deadline)
>+                                       : cv.WaitWithTimeout(&mu, timeout)) {
>+        break;  // deadline/timeout exceeded
>+      }
>+      timeout = deadline - absl::Now();  // recompute
>+    }
>+    bool result = value;  // note: `mu` is still held
>+
>+    if (DelayIsWithinBounds(params.expected_delay, absl::Now() - start_time)) {
>+      EXPECT_EQ(params.expected_result, result);
>+      break;
>+    }
>+  }
>+}
>+
>+TEST(Mutex, Logging) {
>+  // Allow user to look at logging output
>+  absl::Mutex logged_mutex;
>+  logged_mutex.EnableDebugLog("fido_mutex");
>+  absl::CondVar logged_cv;
>+  logged_cv.EnableDebugLog("rover_cv");
>+  logged_mutex.Lock();
>+  logged_cv.WaitWithTimeout(&logged_mutex, absl::Milliseconds(20));
>+  logged_mutex.Unlock();
>+  logged_mutex.ReaderLock();
>+  logged_mutex.ReaderUnlock();
>+  logged_mutex.Lock();
>+  logged_mutex.Unlock();
>+  logged_cv.Signal();
>+  logged_cv.SignalAll();
>+}
>+
>+// --------------------------------------------------------
>+
>+// Generate the vector of thread counts for tests parameterized on thread count.
>+static std::vector<int> AllThreadCountValues() {
>+  if (kExtendedTest) {
>+    return {2, 4, 8, 10, 16, 20, 24, 30, 32};
>+  }
>+  return {2, 4, 10};
>+}
>+
>+// A test fixture parameterized by thread count.
>+class MutexVariableThreadCountTest : public ::testing::TestWithParam<int> {};
>+
>+// Instantiate the above with AllThreadCountOptions().
>+INSTANTIATE_TEST_CASE_P(ThreadCounts, MutexVariableThreadCountTest,
>+                        ::testing::ValuesIn(AllThreadCountValues()),
>+                        ::testing::PrintToStringParamName());
>+
>+// Reduces iterations by some factor for slow platforms
>+// (determined empirically).
>+static int ScaleIterations(int x) {
>+  // ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE is set in the implementation
>+  // of Mutex that uses either std::mutex or pthread_mutex_t. Use
>+  // these as keys to determine the slow implementation.
>+#if defined(ABSL_MUTEX_READER_LOCK_IS_EXCLUSIVE)
>+  return x / 10;
>+#else
>+  return x;
>+#endif
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, Mutex) {
>+  int threads = GetParam();
>+  int iterations = ScaleIterations(10000000) / threads;
>+  int operations = threads * iterations;
>+  EXPECT_EQ(RunTest(&TestMu, threads, iterations, operations), operations);
>+#if !defined(ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED)
>+  iterations = std::min(iterations, 10);
>+  operations = threads * iterations;
>+  EXPECT_EQ(RunTestWithInvariantDebugging(&TestMu, threads, iterations,
>+                                          operations, CheckSumG0G1),
>+            operations);
>+#endif
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, Try) {
>+  int threads = GetParam();
>+  int iterations = 1000000 / threads;
>+  int operations = iterations * threads;
>+  EXPECT_EQ(RunTest(&TestTry, threads, iterations, operations), operations);
>+#if !defined(ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED)
>+  iterations = std::min(iterations, 10);
>+  operations = threads * iterations;
>+  EXPECT_EQ(RunTestWithInvariantDebugging(&TestTry, threads, iterations,
>+                                          operations, CheckSumG0G1),
>+            operations);
>+#endif
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, R20ms) {
>+  int threads = GetParam();
>+  int iterations = 100;
>+  int operations = iterations * threads;
>+  EXPECT_EQ(RunTest(&TestR20ms, threads, iterations, operations), 0);
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, RW) {
>+  int threads = GetParam();
>+  int iterations = ScaleIterations(20000000) / threads;
>+  int operations = iterations * threads;
>+  EXPECT_EQ(RunTest(&TestRW, threads, iterations, operations), operations / 2);
>+#if !defined(ABSL_MUTEX_ENABLE_INVARIANT_DEBUGGING_NOT_IMPLEMENTED)
>+  iterations = std::min(iterations, 10);
>+  operations = threads * iterations;
>+  EXPECT_EQ(RunTestWithInvariantDebugging(&TestRW, threads, iterations,
>+                                          operations, CheckSumG0G1),
>+            operations / 2);
>+#endif
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, Await) {
>+  int threads = GetParam();
>+  int iterations = ScaleIterations(500000);
>+  int operations = iterations;
>+  EXPECT_EQ(RunTest(&TestAwait, threads, iterations, operations), operations);
>+}
>+
>+TEST_P(MutexVariableThreadCountTest, SignalAll) {
>+  int threads = GetParam();
>+  int iterations = 200000 / threads;
>+  int operations = iterations;
>+  EXPECT_EQ(RunTest(&TestSignalAll, threads, iterations, operations),
>+            operations);
>+}
>+
>+TEST(Mutex, Signal) {
>+  int threads = 2;  // TestSignal must use two threads
>+  int iterations = 200000;
>+  int operations = iterations;
>+  EXPECT_EQ(RunTest(&TestSignal, threads, iterations, operations), operations);
>+}
>+
>+TEST(Mutex, Timed) {
>+  int threads = 10;  // Use a fixed thread count of 10
>+  int iterations = 1000;
>+  int operations = iterations;
>+  EXPECT_EQ(RunTest(&TestCVTimeout, threads, iterations, operations),
>+            operations);
>+}
>+
>+TEST(Mutex, CVTime) {
>+  int threads = 10;  // Use a fixed thread count of 10
>+  int iterations = 1;
>+  EXPECT_EQ(RunTest(&TestCVTime, threads, iterations, 1),
>+            threads * iterations);
>+}
>+
>+TEST(Mutex, MuTime) {
>+  int threads = 10;  // Use a fixed thread count of 10
>+  int iterations = 1;
>+  EXPECT_EQ(RunTest(&TestMuTime, threads, iterations, 1), threads * iterations);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ed8cc906774025b46b058d47d844ba769bc1bce7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.cc
>@@ -0,0 +1,84 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/notification.h"
>+
>+#include <atomic>
>+
>+#include "absl/base/attributes.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/synchronization/mutex.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+void Notification::Notify() {
>+  MutexLock l(&this->mutex_);
>+
>+#ifndef NDEBUG
>+  if (ABSL_PREDICT_FALSE(notified_yet_.load(std::memory_order_relaxed))) {
>+    ABSL_RAW_LOG(
>+        FATAL,
>+        "Notify() method called more than once for Notification object %p",
>+        static_cast<void *>(this));
>+  }
>+#endif
>+
>+  notified_yet_.store(true, std::memory_order_release);
>+}
>+
>+Notification::~Notification() {
>+  // Make sure that the thread running Notify() exits before the object is
>+  // destructed.
>+  MutexLock l(&this->mutex_);
>+}
>+
>+static inline bool HasBeenNotifiedInternal(
>+    const std::atomic<bool> *notified_yet) {
>+  return notified_yet->load(std::memory_order_acquire);
>+}
>+
>+bool Notification::HasBeenNotified() const {
>+  return HasBeenNotifiedInternal(&this->notified_yet_);
>+}
>+
>+void Notification::WaitForNotification() const {
>+  if (!HasBeenNotifiedInternal(&this->notified_yet_)) {
>+    this->mutex_.LockWhen(Condition(&HasBeenNotifiedInternal,
>+                                    &this->notified_yet_));
>+    this->mutex_.Unlock();
>+  }
>+}
>+
>+bool Notification::WaitForNotificationWithTimeout(
>+    absl::Duration timeout) const {
>+  bool notified = HasBeenNotifiedInternal(&this->notified_yet_);
>+  if (!notified) {
>+    notified = this->mutex_.LockWhenWithTimeout(
>+        Condition(&HasBeenNotifiedInternal, &this->notified_yet_), timeout);
>+    this->mutex_.Unlock();
>+  }
>+  return notified;
>+}
>+
>+bool Notification::WaitForNotificationWithDeadline(absl::Time deadline) const {
>+  bool notified = HasBeenNotifiedInternal(&this->notified_yet_);
>+  if (!notified) {
>+    notified = this->mutex_.LockWhenWithDeadline(
>+        Condition(&HasBeenNotifiedInternal, &this->notified_yet_), deadline);
>+    this->mutex_.Unlock();
>+  }
>+  return notified;
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..107932f2909e6e61bb11fc5b3f5372aa54172ca0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification.h
>@@ -0,0 +1,112 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// notification.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines a `Notification` abstraction, which allows threads
>+// to receive notification of a single occurrence of a single event.
>+//
>+// The `Notification` object maintains a private boolean "notified" state that
>+// transitions to `true` at most once. The `Notification` class provides the
>+// following primary member functions:
>+//   * `HasBeenNotified() `to query its state
>+//   * `WaitForNotification*()` to have threads wait until the "notified" state
>+//      is `true`.
>+//   * `Notify()` to set the notification's "notified" state to `true` and
>+//     notify all waiting threads that the event has occurred.
>+//     This method may only be called once.
>+//
>+// Note that while `Notify()` may only be called once, it is perfectly valid to
>+// call any of the `WaitForNotification*()` methods multiple times, from
>+// multiple threads -- even after the notification's "notified" state has been
>+// set -- in which case those methods will immediately return.
>+//
>+// Note that the lifetime of a `Notification` requires careful consideration;
>+// it might not be safe to destroy a notification after calling `Notify()` since
>+// it is still legal for other threads to call `WaitForNotification*()` methods
>+// on the notification. However, observers responding to a "notified" state of
>+// `true` can safely delete the notification without interfering with the call
>+// to `Notify()` in the other thread.
>+//
>+// Memory ordering: For any threads X and Y, if X calls `Notify()`, then any
>+// action taken by X before it calls `Notify()` is visible to thread Y after:
>+//  * Y returns from `WaitForNotification()`, or
>+//  * Y receives a `true` return value from either `HasBeenNotified()` or
>+//    `WaitForNotificationWithTimeout()`.
>+
>+#ifndef ABSL_SYNCHRONIZATION_NOTIFICATION_H_
>+#define ABSL_SYNCHRONIZATION_NOTIFICATION_H_
>+
>+#include <atomic>
>+
>+#include "absl/synchronization/mutex.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// Notification
>+// -----------------------------------------------------------------------------
>+class Notification {
>+ public:
>+  // Initializes the "notified" state to unnotified.
>+  Notification() : notified_yet_(false) {}
>+  explicit Notification(bool prenotify) : notified_yet_(prenotify) {}
>+  Notification(const Notification&) = delete;
>+  Notification& operator=(const Notification&) = delete;
>+  ~Notification();
>+
>+  // Notification::HasBeenNotified()
>+  //
>+  // Returns the value of the notification's internal "notified" state.
>+  bool HasBeenNotified() const;
>+
>+  // Notification::WaitForNotification()
>+  //
>+  // Blocks the calling thread until the notification's "notified" state is
>+  // `true`. Note that if `Notify()` has been previously called on this
>+  // notification, this function will immediately return.
>+  void WaitForNotification() const;
>+
>+  // Notification::WaitForNotificationWithTimeout()
>+  //
>+  // Blocks until either the notification's "notified" state is `true` (which
>+  // may occur immediately) or the timeout has elapsed, returning the value of
>+  // its "notified" state in either case.
>+  bool WaitForNotificationWithTimeout(absl::Duration timeout) const;
>+
>+  // Notification::WaitForNotificationWithDeadline()
>+  //
>+  // Blocks until either the notification's "notified" state is `true` (which
>+  // may occur immediately) or the deadline has expired, returning the value of
>+  // its "notified" state in either case.
>+  bool WaitForNotificationWithDeadline(absl::Time deadline) const;
>+
>+  // Notification::Notify()
>+  //
>+  // Sets the "notified" state of this notification to `true` and wakes waiting
>+  // threads. Note: do not call `Notify()` multiple times on the same
>+  // `Notification`; calling `Notify()` more than once on the same notification
>+  // results in undefined behavior.
>+  void Notify();
>+
>+ private:
>+  mutable Mutex mutex_;
>+  std::atomic<bool> notified_yet_;  // written under mutex_
>+};
>+
>+}  // namespace absl
>+#endif  // ABSL_SYNCHRONIZATION_NOTIFICATION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..9b3b6a5a9e84ec1a3655a2c8f43eb8fbc5832ef6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/synchronization/notification_test.cc
>@@ -0,0 +1,124 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/synchronization/notification.h"
>+
>+#include <thread>  // NOLINT(build/c++11)
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/synchronization/mutex.h"
>+
>+namespace absl {
>+
>+// A thread-safe class that holds a counter.
>+class ThreadSafeCounter {
>+ public:
>+  ThreadSafeCounter() : count_(0) {}
>+
>+  void Increment() {
>+    MutexLock lock(&mutex_);
>+    ++count_;
>+  }
>+
>+  int Get() const {
>+    MutexLock lock(&mutex_);
>+    return count_;
>+  }
>+
>+  void WaitUntilGreaterOrEqual(int n) {
>+    MutexLock lock(&mutex_);
>+    auto cond = [this, n]() { return count_ >= n; };
>+    mutex_.Await(Condition(&cond));
>+  }
>+
>+ private:
>+  mutable Mutex mutex_;
>+  int count_;
>+};
>+
>+// Runs the |i|'th worker thread for the tests in BasicTests().  Increments the
>+// |ready_counter|, waits on the |notification|, and then increments the
>+// |done_counter|.
>+static void RunWorker(int i, ThreadSafeCounter* ready_counter,
>+                      Notification* notification,
>+                      ThreadSafeCounter* done_counter) {
>+  ready_counter->Increment();
>+  notification->WaitForNotification();
>+  done_counter->Increment();
>+}
>+
>+// Tests that the |notification| properly blocks and awakens threads.  Assumes
>+// that the |notification| is not yet triggered.  If |notify_before_waiting| is
>+// true, the |notification| is triggered before any threads are created, so the
>+// threads never block in WaitForNotification().  Otherwise, the |notification|
>+// is triggered at a later point when most threads are likely to be blocking in
>+// WaitForNotification().
>+static void BasicTests(bool notify_before_waiting, Notification* notification) {
>+  EXPECT_FALSE(notification->HasBeenNotified());
>+  EXPECT_FALSE(
>+      notification->WaitForNotificationWithTimeout(absl::Milliseconds(0)));
>+  EXPECT_FALSE(notification->WaitForNotificationWithDeadline(absl::Now()));
>+
>+  absl::Time start = absl::Now();
>+  EXPECT_FALSE(
>+      notification->WaitForNotificationWithTimeout(absl::Milliseconds(50)));
>+  EXPECT_LE(start + absl::Milliseconds(50), absl::Now());
>+
>+  ThreadSafeCounter ready_counter;
>+  ThreadSafeCounter done_counter;
>+
>+  if (notify_before_waiting) {
>+    notification->Notify();
>+  }
>+
>+  // Create a bunch of threads that increment the |done_counter| after being
>+  // notified.
>+  const int kNumThreads = 10;
>+  std::vector<std::thread> workers;
>+  for (int i = 0; i < kNumThreads; ++i) {
>+    workers.push_back(std::thread(&RunWorker, i, &ready_counter, notification,
>+                                  &done_counter));
>+  }
>+
>+  if (!notify_before_waiting) {
>+    ready_counter.WaitUntilGreaterOrEqual(kNumThreads);
>+
>+    // Workers have not been notified yet, so the |done_counter| should be
>+    // unmodified.
>+    EXPECT_EQ(0, done_counter.Get());
>+
>+    notification->Notify();
>+  }
>+
>+  // After notifying and then joining the workers, both counters should be
>+  // fully incremented.
>+  notification->WaitForNotification();  // should exit immediately
>+  EXPECT_TRUE(notification->HasBeenNotified());
>+  EXPECT_TRUE(notification->WaitForNotificationWithTimeout(absl::Seconds(0)));
>+  EXPECT_TRUE(notification->WaitForNotificationWithDeadline(absl::Now()));
>+  for (std::thread& worker : workers) {
>+    worker.join();
>+  }
>+  EXPECT_EQ(kNumThreads, ready_counter.Get());
>+  EXPECT_EQ(kNumThreads, done_counter.Get());
>+}
>+
>+TEST(NotificationTest, SanityTest) {
>+  Notification local_notification1, local_notification2;
>+  BasicTests(false, &local_notification1);
>+  BasicTests(true, &local_notification2);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..c7c16d4376c7fa34344757279fa617c7054c260e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.bazel
>@@ -0,0 +1,112 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "time",
>+    srcs = [
>+        "clock.cc",
>+        "duration.cc",
>+        "format.cc",
>+        "internal/get_current_time_chrono.inc",
>+        "internal/get_current_time_posix.inc",
>+        "time.cc",
>+    ],
>+    hdrs = [
>+        "clock.h",
>+        "time.h",
>+    ],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:core_headers",
>+        "//absl/numeric:int128",
>+        "//absl/strings",
>+        "//absl/time/internal/cctz:civil_time",
>+        "//absl/time/internal/cctz:time_zone",
>+    ],
>+)
>+
>+cc_library(
>+    name = "test_util",
>+    testonly = 1,
>+    srcs = [
>+        "internal/test_util.cc",
>+        "internal/zoneinfo.inc",
>+    ],
>+    hdrs = ["internal/test_util.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    visibility = [
>+        "//absl/time:__pkg__",
>+    ],
>+    deps = [
>+        ":time",
>+        "//absl/base",
>+        "//absl/time/internal/cctz:time_zone",
>+        "@com_google_googletest//:gtest",
>+    ],
>+)
>+
>+cc_test(
>+    name = "time_test",
>+    srcs = [
>+        "clock_test.cc",
>+        "duration_test.cc",
>+        "format_test.cc",
>+        "time_norm_test.cc",
>+        "time_test.cc",
>+        "time_zone_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":test_util",
>+        ":time",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/time/internal/cctz:time_zone",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "time_benchmark",
>+    srcs = [
>+        "clock_benchmark.cc",
>+        "duration_benchmark.cc",
>+        "format_benchmark.cc",
>+        "time_benchmark.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    tags = [
>+        "benchmark",
>+    ],
>+    deps = [
>+        ":test_util",
>+        ":time",
>+        "//absl/base",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..9927af8343cb16099e022cd3780f486e7afa411d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/BUILD.gn
>@@ -0,0 +1,70 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("time") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "clock.cc",
>+    "duration.cc",
>+    "format.cc",
>+    "internal/get_current_time_chrono.inc",
>+    "internal/get_current_time_posix.inc",
>+    "time.cc",
>+  ]
>+  public = [
>+    "clock.h",
>+    "time.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:core_headers",
>+    "../numeric:int128",
>+    "../strings",
>+    "../time/internal/cctz:civil_time",
>+    "../time/internal/cctz:time_zone",
>+  ]
>+}
>+
>+source_set("test_util") {
>+  testonly = true
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/test_util.cc",
>+    "internal/zoneinfo.inc",
>+  ]
>+  public = [
>+    "internal/test_util.h",
>+  ]
>+  deps = [
>+    ":time",
>+    "../base",
>+    "../time/internal/cctz:time_zone",
>+    "//testing/gtest",
>+    "//testing/gmock",
>+  ]
>+  visibility = []
>+  visibility += [ "../time:*" ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..06272364f14e9db25943584056763d1b073c6508
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/CMakeLists.txt
>@@ -0,0 +1,96 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND TIME_PUBLIC_HEADERS
>+  "clock.h"
>+  "time.h"
>+)
>+
>+
>+list(APPEND TIME_INTERNAL_HEADERS
>+  "internal/test_util.h"
>+  "internal/cctz/include/cctz/civil_time.h"
>+  "internal/cctz/include/cctz/civil_time_detail.h"
>+  "internal/cctz/include/cctz/time_zone.h"
>+  "internal/cctz/include/cctz/zone_info_source.h"
>+)
>+
>+list(APPEND TIME_SRC
>+  "time.cc"
>+  "clock.cc"
>+  "duration.cc"
>+  "format.cc"
>+  "internal/cctz/src/civil_time_detail.cc"
>+  "internal/cctz/src/time_zone_fixed.cc"
>+  "internal/cctz/src/time_zone_fixed.h"
>+  "internal/cctz/src/time_zone_format.cc"
>+  "internal/cctz/src/time_zone_if.cc"
>+  "internal/cctz/src/time_zone_if.h"
>+  "internal/cctz/src/time_zone_impl.cc"
>+  "internal/cctz/src/time_zone_impl.h"
>+  "internal/cctz/src/time_zone_info.cc"
>+  "internal/cctz/src/time_zone_info.h"
>+  "internal/cctz/src/time_zone_libc.cc"
>+  "internal/cctz/src/time_zone_libc.h"
>+  "internal/cctz/src/time_zone_lookup.cc"
>+  "internal/cctz/src/time_zone_posix.cc"
>+  "internal/cctz/src/time_zone_posix.h"
>+  "internal/cctz/src/tzfile.h"
>+  "internal/cctz/src/zone_info_source.cc"
>+  ${TIME_PUBLIC_HEADERS}
>+  ${TIME_INTERNAL_HEADERS}
>+)
>+set(TIME_PUBLIC_LIBRARIES absl::base absl::stacktrace absl::int128 absl::strings)
>+
>+absl_library(
>+  TARGET
>+    absl_time
>+  SOURCES
>+    ${TIME_SRC}
>+  PUBLIC_LIBRARIES
>+    ${TIME_PUBLIC_LIBRARIES}
>+  EXPORT_NAME
>+    time
>+)
>+
>+
>+
>+#
>+## TESTS
>+#
>+
>+# test time_test
>+list(APPEND TIME_TEST_SRC
>+  "time_test.cc"
>+  "clock_test.cc"
>+  "duration_test.cc"
>+  "format_test.cc"
>+  "time_norm_test.cc"
>+  "time_test.cc"
>+  "time_zone_test.cc"
>+  "internal/test_util.cc"
>+)
>+set(TIME_TEST_PUBLIC_LIBRARIES absl::time)
>+
>+absl_test(
>+  TARGET
>+    time_test
>+  SOURCES
>+    ${TIME_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${TIME_TEST_PUBLIC_LIBRARIES}
>+)
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..74ee1401b98c2e15e19d2832daa491e3e45c2fb6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.cc
>@@ -0,0 +1,561 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/clock.h"
>+
>+#include "absl/base/attributes.h"
>+
>+#ifdef _WIN32
>+#include <windows.h>
>+#endif
>+
>+#include <algorithm>
>+#include <atomic>
>+#include <cerrno>
>+#include <cstdint>
>+#include <ctime>
>+#include <limits>
>+
>+#include "absl/base/internal/spinlock.h"
>+#include "absl/base/internal/unscaledcycleclock.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/base/thread_annotations.h"
>+
>+namespace absl {
>+Time Now() {
>+  // TODO(bww): Get a timespec instead so we don't have to divide.
>+  int64_t n = absl::GetCurrentTimeNanos();
>+  if (n >= 0) {
>+    return time_internal::FromUnixDuration(
>+        time_internal::MakeDuration(n / 1000000000, n % 1000000000 * 4));
>+  }
>+  return time_internal::FromUnixDuration(absl::Nanoseconds(n));
>+}
>+}  // namespace absl
>+
>+// Decide if we should use the fast GetCurrentTimeNanos() algorithm
>+// based on the cyclecounter, otherwise just get the time directly
>+// from the OS on every call. This can be chosen at compile-time via
>+// -DABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS=[0|1]
>+#ifndef ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS
>+#if ABSL_USE_UNSCALED_CYCLECLOCK
>+#define ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS 1
>+#else
>+#define ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS 0
>+#endif
>+#endif
>+
>+#if defined(__APPLE__) || defined(_WIN32)
>+#include "absl/time/internal/get_current_time_chrono.inc"
>+#else
>+#include "absl/time/internal/get_current_time_posix.inc"
>+#endif
>+
>+// Allows override by test.
>+#ifndef GET_CURRENT_TIME_NANOS_FROM_SYSTEM
>+#define GET_CURRENT_TIME_NANOS_FROM_SYSTEM() \
>+  ::absl::time_internal::GetCurrentTimeNanosFromSystem()
>+#endif
>+
>+#if !ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS
>+namespace absl {
>+int64_t GetCurrentTimeNanos() {
>+  return GET_CURRENT_TIME_NANOS_FROM_SYSTEM();
>+}
>+}  // namespace absl
>+#else  // Use the cyclecounter-based implementation below.
>+
>+// Allows override by test.
>+#ifndef GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW
>+#define GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW() \
>+  ::absl::time_internal::UnscaledCycleClockWrapperForGetCurrentTime::Now()
>+#endif
>+
>+// The following counters are used only by the test code.
>+static int64_t stats_initializations;
>+static int64_t stats_reinitializations;
>+static int64_t stats_calibrations;
>+static int64_t stats_slow_paths;
>+static int64_t stats_fast_slow_paths;
>+
>+namespace absl {
>+namespace time_internal {
>+// This is a friend wrapper around UnscaledCycleClock::Now()
>+// (needed to access UnscaledCycleClock).
>+class UnscaledCycleClockWrapperForGetCurrentTime {
>+ public:
>+  static int64_t Now() { return base_internal::UnscaledCycleClock::Now(); }
>+};
>+}  // namespace time_internal
>+
>+// uint64_t is used in this module to provide an extra bit in multiplications
>+
>+// Return the time in ns as told by the kernel interface.  Place in *cycleclock
>+// the value of the cycleclock at about the time of the syscall.
>+// This call represents the time base that this module synchronizes to.
>+// Ensures that *cycleclock does not step back by up to (1 << 16) from
>+// last_cycleclock, to discard small backward counter steps.  (Larger steps are
>+// assumed to be complete resyncs, which shouldn't happen.  If they do, a full
>+// reinitialization of the outer algorithm should occur.)
>+static int64_t GetCurrentTimeNanosFromKernel(uint64_t last_cycleclock,
>+                                             uint64_t *cycleclock) {
>+  // We try to read clock values at about the same time as the kernel clock.
>+  // This value gets adjusted up or down as estimate of how long that should
>+  // take, so we can reject attempts that take unusually long.
>+  static std::atomic<uint64_t> approx_syscall_time_in_cycles{10 * 1000};
>+
>+  uint64_t local_approx_syscall_time_in_cycles =  // local copy
>+      approx_syscall_time_in_cycles.load(std::memory_order_relaxed);
>+
>+  int64_t current_time_nanos_from_system;
>+  uint64_t before_cycles;
>+  uint64_t after_cycles;
>+  uint64_t elapsed_cycles;
>+  int loops = 0;
>+  do {
>+    before_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW();
>+    current_time_nanos_from_system = GET_CURRENT_TIME_NANOS_FROM_SYSTEM();
>+    after_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW();
>+    // elapsed_cycles is unsigned, so is large on overflow
>+    elapsed_cycles = after_cycles - before_cycles;
>+    if (elapsed_cycles >= local_approx_syscall_time_in_cycles &&
>+        ++loops == 20) {  // clock changed frequencies?  Back off.
>+      loops = 0;
>+      if (local_approx_syscall_time_in_cycles < 1000 * 1000) {
>+        local_approx_syscall_time_in_cycles =
>+            (local_approx_syscall_time_in_cycles + 1) << 1;
>+      }
>+      approx_syscall_time_in_cycles.store(
>+          local_approx_syscall_time_in_cycles,
>+          std::memory_order_relaxed);
>+    }
>+  } while (elapsed_cycles >= local_approx_syscall_time_in_cycles ||
>+           last_cycleclock - after_cycles < (static_cast<uint64_t>(1) << 16));
>+
>+  // Number of times in a row we've seen a kernel time call take substantially
>+  // less than approx_syscall_time_in_cycles.
>+  static std::atomic<uint32_t> seen_smaller{ 0 };
>+
>+  // Adjust approx_syscall_time_in_cycles to be within a factor of 2
>+  // of the typical time to execute one iteration of the loop above.
>+  if ((local_approx_syscall_time_in_cycles >> 1) < elapsed_cycles) {
>+    // measured time is no smaller than half current approximation
>+    seen_smaller.store(0, std::memory_order_relaxed);
>+  } else if (seen_smaller.fetch_add(1, std::memory_order_relaxed) >= 3) {
>+    // smaller delays several times in a row; reduce approximation by 12.5%
>+    const uint64_t new_approximation =
>+        local_approx_syscall_time_in_cycles -
>+        (local_approx_syscall_time_in_cycles >> 3);
>+    approx_syscall_time_in_cycles.store(new_approximation,
>+                                        std::memory_order_relaxed);
>+    seen_smaller.store(0, std::memory_order_relaxed);
>+  }
>+
>+  *cycleclock = after_cycles;
>+  return current_time_nanos_from_system;
>+}
>+
>+
>+// ---------------------------------------------------------------------
>+// An implementation of reader-write locks that use no atomic ops in the read
>+// case.  This is a generalization of Lamport's method for reading a multiword
>+// clock.  Increment a word on each write acquisition, using the low-order bit
>+// as a spinlock; the word is the high word of the "clock".  Readers read the
>+// high word, then all other data, then the high word again, and repeat the
>+// read if the reads of the high words yields different answers, or an odd
>+// value (either case suggests possible interference from a writer).
>+// Here we use a spinlock to ensure only one writer at a time, rather than
>+// spinning on the bottom bit of the word to benefit from SpinLock
>+// spin-delay tuning.
>+
>+// Acquire seqlock (*seq) and return the value to be written to unlock.
>+static inline uint64_t SeqAcquire(std::atomic<uint64_t> *seq) {
>+  uint64_t x = seq->fetch_add(1, std::memory_order_relaxed);
>+
>+  // We put a release fence between update to *seq and writes to shared data.
>+  // Thus all stores to shared data are effectively release operations and
>+  // update to *seq above cannot be re-ordered past any of them.  Note that
>+  // this barrier is not for the fetch_add above.  A release barrier for the
>+  // fetch_add would be before it, not after.
>+  std::atomic_thread_fence(std::memory_order_release);
>+
>+  return x + 2;   // original word plus 2
>+}
>+
>+// Release seqlock (*seq) by writing x to it---a value previously returned by
>+// SeqAcquire.
>+static inline void SeqRelease(std::atomic<uint64_t> *seq, uint64_t x) {
>+  // The unlock store to *seq must have release ordering so that all
>+  // updates to shared data must finish before this store.
>+  seq->store(x, std::memory_order_release);  // release lock for readers
>+}
>+
>+// ---------------------------------------------------------------------
>+
>+// "nsscaled" is unit of time equal to a (2**kScale)th of a nanosecond.
>+enum { kScale = 30 };
>+
>+// The minimum interval between samples of the time base.
>+// We pick enough time to amortize the cost of the sample,
>+// to get a reasonably accurate cycle counter rate reading,
>+// and not so much that calculations will overflow 64-bits.
>+static const uint64_t kMinNSBetweenSamples = 2000 << 20;
>+
>+// We require that kMinNSBetweenSamples shifted by kScale
>+// have at least a bit left over for 64-bit calculations.
>+static_assert(((kMinNSBetweenSamples << (kScale + 1)) >> (kScale + 1)) ==
>+               kMinNSBetweenSamples,
>+               "cannot represent kMaxBetweenSamplesNSScaled");
>+
>+// A reader-writer lock protecting the static locations below.
>+// See SeqAcquire() and SeqRelease() above.
>+static absl::base_internal::SpinLock lock(
>+    absl::base_internal::kLinkerInitialized);
>+static std::atomic<uint64_t> seq(0);
>+
>+// data from a sample of the kernel's time value
>+struct TimeSampleAtomic {
>+  std::atomic<uint64_t> raw_ns;              // raw kernel time
>+  std::atomic<uint64_t> base_ns;             // our estimate of time
>+  std::atomic<uint64_t> base_cycles;         // cycle counter reading
>+  std::atomic<uint64_t> nsscaled_per_cycle;  // cycle period
>+  // cycles before we'll sample again (a scaled reciprocal of the period,
>+  // to avoid a division on the fast path).
>+  std::atomic<uint64_t> min_cycles_per_sample;
>+};
>+// Same again, but with non-atomic types
>+struct TimeSample {
>+  uint64_t raw_ns;                 // raw kernel time
>+  uint64_t base_ns;                // our estimate of time
>+  uint64_t base_cycles;            // cycle counter reading
>+  uint64_t nsscaled_per_cycle;     // cycle period
>+  uint64_t min_cycles_per_sample;  // approx cycles before next sample
>+};
>+
>+static struct TimeSampleAtomic last_sample;   // the last sample; under seq
>+
>+static int64_t GetCurrentTimeNanosSlowPath() ABSL_ATTRIBUTE_COLD;
>+
>+// Read the contents of *atomic into *sample.
>+// Each field is read atomically, but to maintain atomicity between fields,
>+// the access must be done under a lock.
>+static void ReadTimeSampleAtomic(const struct TimeSampleAtomic *atomic,
>+                                 struct TimeSample *sample) {
>+  sample->base_ns = atomic->base_ns.load(std::memory_order_relaxed);
>+  sample->base_cycles = atomic->base_cycles.load(std::memory_order_relaxed);
>+  sample->nsscaled_per_cycle =
>+      atomic->nsscaled_per_cycle.load(std::memory_order_relaxed);
>+  sample->min_cycles_per_sample =
>+      atomic->min_cycles_per_sample.load(std::memory_order_relaxed);
>+  sample->raw_ns = atomic->raw_ns.load(std::memory_order_relaxed);
>+}
>+
>+// Public routine.
>+// Algorithm:  We wish to compute real time from a cycle counter.  In normal
>+// operation, we construct a piecewise linear approximation to the kernel time
>+// source, using the cycle counter value.  The start of each line segment is at
>+// the same point as the end of the last, but may have a different slope (that
>+// is, a different idea of the cycle counter frequency).  Every couple of
>+// seconds, the kernel time source is sampled and compared with the current
>+// approximation.  A new slope is chosen that, if followed for another couple
>+// of seconds, will correct the error at the current position.  The information
>+// for a sample is in the "last_sample" struct.  The linear approximation is
>+//   estimated_time = last_sample.base_ns +
>+//     last_sample.ns_per_cycle * (counter_reading - last_sample.base_cycles)
>+// (ns_per_cycle is actually stored in different units and scaled, to avoid
>+// overflow).  The base_ns of the next linear approximation is the
>+// estimated_time using the last approximation; the base_cycles is the cycle
>+// counter value at that time; the ns_per_cycle is the number of ns per cycle
>+// measured since the last sample, but adjusted so that most of the difference
>+// between the estimated_time and the kernel time will be corrected by the
>+// estimated time to the next sample.  In normal operation, this algorithm
>+// relies on:
>+// - the cycle counter and kernel time rates not changing a lot in a few
>+//   seconds.
>+// - the client calling into the code often compared to a couple of seconds, so
>+//   the time to the next correction can be estimated.
>+// Any time ns_per_cycle is not known, a major error is detected, or the
>+// assumption about frequent calls is violated, the implementation returns the
>+// kernel time.  It records sufficient data that a linear approximation can
>+// resume a little later.
>+
>+int64_t GetCurrentTimeNanos() {
>+  // read the data from the "last_sample" struct (but don't need raw_ns yet)
>+  // The reads of "seq" and test of the values emulate a reader lock.
>+  uint64_t base_ns;
>+  uint64_t base_cycles;
>+  uint64_t nsscaled_per_cycle;
>+  uint64_t min_cycles_per_sample;
>+  uint64_t seq_read0;
>+  uint64_t seq_read1;
>+
>+  // If we have enough information to interpolate, the value returned will be
>+  // derived from this cycleclock-derived time estimate.  On some platforms
>+  // (POWER) the function to retrieve this value has enough complexity to
>+  // contribute to register pressure - reading it early before initializing
>+  // the other pieces of the calculation minimizes spill/restore instructions,
>+  // minimizing icache cost.
>+  uint64_t now_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW();
>+
>+  // Acquire pairs with the barrier in SeqRelease - if this load sees that
>+  // store, the shared-data reads necessarily see that SeqRelease's updates
>+  // to the same shared data.
>+  seq_read0 = seq.load(std::memory_order_acquire);
>+
>+  base_ns = last_sample.base_ns.load(std::memory_order_relaxed);
>+  base_cycles = last_sample.base_cycles.load(std::memory_order_relaxed);
>+  nsscaled_per_cycle =
>+      last_sample.nsscaled_per_cycle.load(std::memory_order_relaxed);
>+  min_cycles_per_sample =
>+      last_sample.min_cycles_per_sample.load(std::memory_order_relaxed);
>+
>+  // This acquire fence pairs with the release fence in SeqAcquire.  Since it
>+  // is sequenced between reads of shared data and seq_read1, the reads of
>+  // shared data are effectively acquiring.
>+  std::atomic_thread_fence(std::memory_order_acquire);
>+
>+  // The shared-data reads are effectively acquire ordered, and the
>+  // shared-data writes are effectively release ordered. Therefore if our
>+  // shared-data reads see any of a particular update's shared-data writes,
>+  // seq_read1 is guaranteed to see that update's SeqAcquire.
>+  seq_read1 = seq.load(std::memory_order_relaxed);
>+
>+  // Fast path.  Return if min_cycles_per_sample has not yet elapsed since the
>+  // last sample, and we read a consistent sample.  The fast path activates
>+  // only when min_cycles_per_sample is non-zero, which happens when we get an
>+  // estimate for the cycle time.  The predicate will fail if now_cycles <
>+  // base_cycles, or if some other thread is in the slow path.
>+  //
>+  // Since we now read now_cycles before base_ns, it is possible for now_cycles
>+  // to be less than base_cycles (if we were interrupted between those loads and
>+  // last_sample was updated). This is harmless, because delta_cycles will wrap
>+  // and report a time much much bigger than min_cycles_per_sample. In that case
>+  // we will take the slow path.
>+  uint64_t delta_cycles = now_cycles - base_cycles;
>+  if (seq_read0 == seq_read1 && (seq_read0 & 1) == 0 &&
>+      delta_cycles < min_cycles_per_sample) {
>+    return base_ns + ((delta_cycles * nsscaled_per_cycle) >> kScale);
>+  }
>+  return GetCurrentTimeNanosSlowPath();
>+}
>+
>+// Return (a << kScale)/b.
>+// Zero is returned if b==0.   Scaling is performed internally to
>+// preserve precision without overflow.
>+static uint64_t SafeDivideAndScale(uint64_t a, uint64_t b) {
>+  // Find maximum safe_shift so that
>+  //  0 <= safe_shift <= kScale  and  (a << safe_shift) does not overflow.
>+  int safe_shift = kScale;
>+  while (((a << safe_shift) >> safe_shift) != a) {
>+    safe_shift--;
>+  }
>+  uint64_t scaled_b = b >> (kScale - safe_shift);
>+  uint64_t quotient = 0;
>+  if (scaled_b != 0) {
>+    quotient = (a << safe_shift) / scaled_b;
>+  }
>+  return quotient;
>+}
>+
>+static uint64_t UpdateLastSample(
>+    uint64_t now_cycles, uint64_t now_ns, uint64_t delta_cycles,
>+    const struct TimeSample *sample) ABSL_ATTRIBUTE_COLD;
>+
>+// The slow path of GetCurrentTimeNanos().  This is taken while gathering
>+// initial samples, when enough time has elapsed since the last sample, and if
>+// any other thread is writing to last_sample.
>+//
>+// Manually mark this 'noinline' to minimize stack frame size of the fast
>+// path.  Without this, sometimes a compiler may inline this big block of code
>+// into the fast past.  That causes lots of register spills and reloads that
>+// are unnecessary unless the slow path is taken.
>+//
>+// TODO(absl-team): Remove this attribute when our compiler is smart enough
>+// to do the right thing.
>+ABSL_ATTRIBUTE_NOINLINE
>+static int64_t GetCurrentTimeNanosSlowPath() LOCKS_EXCLUDED(lock) {
>+  // Serialize access to slow-path.  Fast-path readers are not blocked yet, and
>+  // code below must not modify last_sample until the seqlock is acquired.
>+  lock.Lock();
>+
>+  // Sample the kernel time base.  This is the definition of
>+  // "now" if we take the slow path.
>+  static uint64_t last_now_cycles;  // protected by lock
>+  uint64_t now_cycles;
>+  uint64_t now_ns = GetCurrentTimeNanosFromKernel(last_now_cycles, &now_cycles);
>+  last_now_cycles = now_cycles;
>+
>+  uint64_t estimated_base_ns;
>+
>+  // ----------
>+  // Read the "last_sample" values again; this time holding the write lock.
>+  struct TimeSample sample;
>+  ReadTimeSampleAtomic(&last_sample, &sample);
>+
>+  // ----------
>+  // Try running the fast path again; another thread may have updated the
>+  // sample between our run of the fast path and the sample we just read.
>+  uint64_t delta_cycles = now_cycles - sample.base_cycles;
>+  if (delta_cycles < sample.min_cycles_per_sample) {
>+    // Another thread updated the sample.  This path does not take the seqlock
>+    // so that blocked readers can make progress without blocking new readers.
>+    estimated_base_ns = sample.base_ns +
>+        ((delta_cycles * sample.nsscaled_per_cycle) >> kScale);
>+    stats_fast_slow_paths++;
>+  } else {
>+    estimated_base_ns =
>+        UpdateLastSample(now_cycles, now_ns, delta_cycles, &sample);
>+  }
>+
>+  lock.Unlock();
>+
>+  return estimated_base_ns;
>+}
>+
>+// Main part of the algorithm.  Locks out readers, updates the approximation
>+// using the new sample from the kernel, and stores the result in last_sample
>+// for readers.  Returns the new estimated time.
>+static uint64_t UpdateLastSample(uint64_t now_cycles, uint64_t now_ns,
>+                                 uint64_t delta_cycles,
>+                                 const struct TimeSample *sample)
>+    EXCLUSIVE_LOCKS_REQUIRED(lock) {
>+  uint64_t estimated_base_ns = now_ns;
>+  uint64_t lock_value = SeqAcquire(&seq);  // acquire seqlock to block readers
>+
>+  // The 5s in the next if-statement limits the time for which we will trust
>+  // the cycle counter and our last sample to give a reasonable result.
>+  // Errors in the rate of the source clock can be multiplied by the ratio
>+  // between this limit and kMinNSBetweenSamples.
>+  if (sample->raw_ns == 0 ||  // no recent sample, or clock went backwards
>+      sample->raw_ns + static_cast<uint64_t>(5) * 1000 * 1000 * 1000 < now_ns ||
>+      now_ns < sample->raw_ns || now_cycles < sample->base_cycles) {
>+    // record this sample, and forget any previously known slope.
>+    last_sample.raw_ns.store(now_ns, std::memory_order_relaxed);
>+    last_sample.base_ns.store(estimated_base_ns, std::memory_order_relaxed);
>+    last_sample.base_cycles.store(now_cycles, std::memory_order_relaxed);
>+    last_sample.nsscaled_per_cycle.store(0, std::memory_order_relaxed);
>+    last_sample.min_cycles_per_sample.store(0, std::memory_order_relaxed);
>+    stats_initializations++;
>+  } else if (sample->raw_ns + 500 * 1000 * 1000 < now_ns &&
>+             sample->base_cycles + 100 < now_cycles) {
>+    // Enough time has passed to compute the cycle time.
>+    if (sample->nsscaled_per_cycle != 0) {  // Have a cycle time estimate.
>+      // Compute time from counter reading, but avoiding overflow
>+      // delta_cycles may be larger than on the fast path.
>+      uint64_t estimated_scaled_ns;
>+      int s = -1;
>+      do {
>+        s++;
>+        estimated_scaled_ns = (delta_cycles >> s) * sample->nsscaled_per_cycle;
>+      } while (estimated_scaled_ns / sample->nsscaled_per_cycle !=
>+               (delta_cycles >> s));
>+      estimated_base_ns = sample->base_ns +
>+                          (estimated_scaled_ns >> (kScale - s));
>+    }
>+
>+    // Compute the assumed cycle time kMinNSBetweenSamples ns into the future
>+    // assuming the cycle counter rate stays the same as the last interval.
>+    uint64_t ns = now_ns - sample->raw_ns;
>+    uint64_t measured_nsscaled_per_cycle = SafeDivideAndScale(ns, delta_cycles);
>+
>+    uint64_t assumed_next_sample_delta_cycles =
>+        SafeDivideAndScale(kMinNSBetweenSamples, measured_nsscaled_per_cycle);
>+
>+    int64_t diff_ns = now_ns - estimated_base_ns;  // estimate low by this much
>+
>+    // We want to set nsscaled_per_cycle so that our estimate of the ns time
>+    // at the assumed cycle time is the assumed ns time.
>+    // That is, we want to set nsscaled_per_cycle so:
>+    //  kMinNSBetweenSamples + diff_ns  ==
>+    //  (assumed_next_sample_delta_cycles * nsscaled_per_cycle) >> kScale
>+    // But we wish to damp oscillations, so instead correct only most
>+    // of our current error, by solving:
>+    //  kMinNSBetweenSamples + diff_ns - (diff_ns / 16) ==
>+    //  (assumed_next_sample_delta_cycles * nsscaled_per_cycle) >> kScale
>+    ns = kMinNSBetweenSamples + diff_ns - (diff_ns / 16);
>+    uint64_t new_nsscaled_per_cycle =
>+        SafeDivideAndScale(ns, assumed_next_sample_delta_cycles);
>+    if (new_nsscaled_per_cycle != 0 &&
>+        diff_ns < 100 * 1000 * 1000 && -diff_ns < 100 * 1000 * 1000) {
>+      // record the cycle time measurement
>+      last_sample.nsscaled_per_cycle.store(
>+          new_nsscaled_per_cycle, std::memory_order_relaxed);
>+      uint64_t new_min_cycles_per_sample =
>+          SafeDivideAndScale(kMinNSBetweenSamples, new_nsscaled_per_cycle);
>+      last_sample.min_cycles_per_sample.store(
>+          new_min_cycles_per_sample, std::memory_order_relaxed);
>+      stats_calibrations++;
>+    } else {  // something went wrong; forget the slope
>+      last_sample.nsscaled_per_cycle.store(0, std::memory_order_relaxed);
>+      last_sample.min_cycles_per_sample.store(0, std::memory_order_relaxed);
>+      estimated_base_ns = now_ns;
>+      stats_reinitializations++;
>+    }
>+    last_sample.raw_ns.store(now_ns, std::memory_order_relaxed);
>+    last_sample.base_ns.store(estimated_base_ns, std::memory_order_relaxed);
>+    last_sample.base_cycles.store(now_cycles, std::memory_order_relaxed);
>+  } else {
>+    // have a sample, but no slope; waiting for enough time for a calibration
>+    stats_slow_paths++;
>+  }
>+
>+  SeqRelease(&seq, lock_value);  // release the readers
>+
>+  return estimated_base_ns;
>+}
>+}  // namespace absl
>+#endif  // ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS
>+
>+namespace absl {
>+namespace {
>+
>+// Returns the maximum duration that SleepOnce() can sleep for.
>+constexpr absl::Duration MaxSleep() {
>+#ifdef _WIN32
>+  // Windows Sleep() takes unsigned long argument in milliseconds.
>+  return absl::Milliseconds(
>+      std::numeric_limits<unsigned long>::max());  // NOLINT(runtime/int)
>+#else
>+  return absl::Seconds(std::numeric_limits<time_t>::max());
>+#endif
>+}
>+
>+// Sleeps for the given duration.
>+// REQUIRES: to_sleep <= MaxSleep().
>+void SleepOnce(absl::Duration to_sleep) {
>+#ifdef _WIN32
>+  Sleep(to_sleep / absl::Milliseconds(1));
>+#else
>+  struct timespec sleep_time = absl::ToTimespec(to_sleep);
>+  while (nanosleep(&sleep_time, &sleep_time) != 0 && errno == EINTR) {
>+    // Ignore signals and wait for the full interval to elapse.
>+  }
>+#endif
>+}
>+
>+}  // namespace
>+}  // namespace absl
>+
>+extern "C" {
>+
>+ABSL_ATTRIBUTE_WEAK void AbslInternalSleepFor(absl::Duration duration) {
>+  while (duration > absl::ZeroDuration()) {
>+    absl::Duration to_sleep = std::min(duration, absl::MaxSleep());
>+    absl::SleepOnce(to_sleep);
>+    duration -= to_sleep;
>+  }
>+}
>+
>+}  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..3753d4ee43ad68a5b4bbd2747cf98057bb48fb87
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock.h
>@@ -0,0 +1,72 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: clock.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file contains utility functions for working with the system-wide
>+// realtime clock. For descriptions of the main time abstractions used within
>+// this header file, consult the time.h header file.
>+#ifndef ABSL_TIME_CLOCK_H_
>+#define ABSL_TIME_CLOCK_H_
>+
>+#include "absl/base/macros.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+
>+// Now()
>+//
>+// Returns the current time, expressed as an `absl::Time` absolute time value.
>+absl::Time Now();
>+
>+// GetCurrentTimeNanos()
>+//
>+// Returns the current time, expressed as a count of nanoseconds since the Unix
>+// Epoch (https://en.wikipedia.org/wiki/Unix_time). Prefer `absl::Now()` instead
>+// for all but the most performance-sensitive cases (i.e. when you are calling
>+// this function hundreds of thousands of times per second).
>+int64_t GetCurrentTimeNanos();
>+
>+// SleepFor()
>+//
>+// Sleeps for the specified duration, expressed as an `absl::Duration`.
>+//
>+// Notes:
>+// * Signal interruptions will not reduce the sleep duration.
>+// * Returns immediately when passed a nonpositive duration.
>+void SleepFor(absl::Duration duration);
>+
>+}  // namespace absl
>+
>+// -----------------------------------------------------------------------------
>+// Implementation Details
>+// -----------------------------------------------------------------------------
>+
>+// In some build configurations we pass --detect-odr-violations to the
>+// gold linker.  This causes it to flag weak symbol overrides as ODR
>+// violations.  Because ODR only applies to C++ and not C,
>+// --detect-odr-violations ignores symbols not mangled with C++ names.
>+// By changing our extension points to be extern "C", we dodge this
>+// check.
>+extern "C" {
>+void AbslInternalSleepFor(absl::Duration duration);
>+}  // extern "C"
>+
>+inline void absl::SleepFor(absl::Duration duration) {
>+  AbslInternalSleepFor(duration);
>+}
>+
>+#endif  // ABSL_TIME_CLOCK_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3d3cd9d5c42cd7f892f48a02e7c1fcb21a388faf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_benchmark.cc
>@@ -0,0 +1,72 @@
>+// Copyright 2018 The Abseil Authors.
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/clock.h"
>+
>+#if !defined(_WIN32)
>+#include <sys/time.h>
>+#endif  // _WIN32
>+#include <cstdio>
>+
>+#include "absl/base/internal/cycleclock.h"
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+void BM_Clock_Now_AbslTime(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Now());
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_AbslTime);
>+
>+void BM_Clock_Now_GetCurrentTimeNanos(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::GetCurrentTimeNanos());
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_GetCurrentTimeNanos);
>+
>+void BM_Clock_Now_AbslTime_ToUnixNanos(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToUnixNanos(absl::Now()));
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_AbslTime_ToUnixNanos);
>+
>+void BM_Clock_Now_CycleClock(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::base_internal::CycleClock::Now());
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_CycleClock);
>+
>+#if !defined(_WIN32)
>+static void BM_Clock_Now_gettimeofday(benchmark::State& state) {
>+  struct timeval tv;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(gettimeofday(&tv, nullptr));
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_gettimeofday);
>+
>+static void BM_Clock_Now_clock_gettime(benchmark::State& state) {
>+  struct timespec ts;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(clock_gettime(CLOCK_REALTIME, &ts));
>+  }
>+}
>+BENCHMARK(BM_Clock_Now_clock_gettime);
>+#endif  // _WIN32
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..707166d0c289b162e745a63bf0dbfc3eda520e7b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/clock_test.cc
>@@ -0,0 +1,118 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/clock.h"
>+
>+#include "absl/base/config.h"
>+#if defined(ABSL_HAVE_ALARM)
>+#include <signal.h>
>+#include <unistd.h>
>+#elif defined(__linux__) || defined(__APPLE__)
>+#error all known Linux and Apple targets have alarm
>+#endif
>+
>+#include "gtest/gtest.h"
>+#include "absl/time/time.h"
>+
>+namespace {
>+
>+TEST(Time, Now) {
>+  const absl::Time before = absl::FromUnixNanos(absl::GetCurrentTimeNanos());
>+  const absl::Time now = absl::Now();
>+  const absl::Time after = absl::FromUnixNanos(absl::GetCurrentTimeNanos());
>+  EXPECT_GE(now, before);
>+  EXPECT_GE(after, now);
>+}
>+
>+enum class AlarmPolicy { kWithoutAlarm, kWithAlarm };
>+
>+#if defined(ABSL_HAVE_ALARM)
>+bool alarm_handler_invoked = false;
>+
>+void AlarmHandler(int signo) {
>+  ASSERT_EQ(signo, SIGALRM);
>+  alarm_handler_invoked = true;
>+}
>+#endif
>+
>+// Does SleepFor(d) take between lower_bound and upper_bound at least
>+// once between now and (now + timeout)?  If requested (and supported),
>+// add an alarm for the middle of the sleep period and expect it to fire.
>+bool SleepForBounded(absl::Duration d, absl::Duration lower_bound,
>+                     absl::Duration upper_bound, absl::Duration timeout,
>+                     AlarmPolicy alarm_policy, int* attempts) {
>+  const absl::Time deadline = absl::Now() + timeout;
>+  while (absl::Now() < deadline) {
>+#if defined(ABSL_HAVE_ALARM)
>+    sig_t old_alarm = SIG_DFL;
>+    if (alarm_policy == AlarmPolicy::kWithAlarm) {
>+      alarm_handler_invoked = false;
>+      old_alarm = signal(SIGALRM, AlarmHandler);
>+      alarm(absl::ToInt64Seconds(d / 2));
>+    }
>+#else
>+    EXPECT_EQ(alarm_policy, AlarmPolicy::kWithoutAlarm);
>+#endif
>+    ++*attempts;
>+    absl::Time start = absl::Now();
>+    absl::SleepFor(d);
>+    absl::Duration actual = absl::Now() - start;
>+#if defined(ABSL_HAVE_ALARM)
>+    if (alarm_policy == AlarmPolicy::kWithAlarm) {
>+      signal(SIGALRM, old_alarm);
>+      if (!alarm_handler_invoked) continue;
>+    }
>+#endif
>+    if (lower_bound <= actual && actual <= upper_bound) {
>+      return true;  // yes, the SleepFor() was correctly bounded
>+    }
>+  }
>+  return false;
>+}
>+
>+testing::AssertionResult AssertSleepForBounded(absl::Duration d,
>+                                               absl::Duration early,
>+                                               absl::Duration late,
>+                                               absl::Duration timeout,
>+                                               AlarmPolicy alarm_policy) {
>+  const absl::Duration lower_bound = d - early;
>+  const absl::Duration upper_bound = d + late;
>+  int attempts = 0;
>+  if (SleepForBounded(d, lower_bound, upper_bound, timeout, alarm_policy,
>+                      &attempts)) {
>+    return testing::AssertionSuccess();
>+  }
>+  return testing::AssertionFailure()
>+         << "SleepFor(" << d << ") did not return within [" << lower_bound
>+         << ":" << upper_bound << "] in " << attempts << " attempt"
>+         << (attempts == 1 ? "" : "s") << " over " << timeout
>+         << (alarm_policy == AlarmPolicy::kWithAlarm ? " with" : " without")
>+         << " an alarm";
>+}
>+
>+// Tests that SleepFor() returns neither too early nor too late.
>+TEST(SleepFor, Bounded) {
>+  const absl::Duration d = absl::Milliseconds(2500);
>+  const absl::Duration early = absl::Milliseconds(100);
>+  const absl::Duration late = absl::Milliseconds(300);
>+  const absl::Duration timeout = 48 * d;
>+  EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout,
>+                                    AlarmPolicy::kWithoutAlarm));
>+#if defined(ABSL_HAVE_ALARM)
>+  EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout,
>+                                    AlarmPolicy::kWithAlarm));
>+#endif
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f402137b0a650d2b7ed605262fd954062aab29a0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration.cc
>@@ -0,0 +1,904 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// The implementation of the absl::Duration class, which is declared in
>+// //absl/time.h.  This class behaves like a numeric type; it has no public
>+// methods and is used only through the operators defined here.
>+//
>+// Implementation notes:
>+//
>+// An absl::Duration is represented as
>+//
>+//   rep_hi_ : (int64_t)  Whole seconds
>+//   rep_lo_ : (uint32_t) Fractions of a second
>+//
>+// The seconds value (rep_hi_) may be positive or negative as appropriate.
>+// The fractional seconds (rep_lo_) is always a positive offset from rep_hi_.
>+// The API for Duration guarantees at least nanosecond resolution, which
>+// means rep_lo_ could have a max value of 1B - 1 if it stored nanoseconds.
>+// However, to utilize more of the available 32 bits of space in rep_lo_,
>+// we instead store quarters of a nanosecond in rep_lo_ resulting in a max
>+// value of 4B - 1.  This allows us to correctly handle calculations like
>+// 0.5 nanos + 0.5 nanos = 1 nano.  The following example shows the actual
>+// Duration rep using quarters of a nanosecond.
>+//
>+//    2.5 sec = {rep_hi_=2,  rep_lo_=2000000000}  // lo = 4 * 500000000
>+//   -2.5 sec = {rep_hi_=-3, rep_lo_=2000000000}
>+//
>+// Infinite durations are represented as Durations with the rep_lo_ field set
>+// to all 1s.
>+//
>+//   +InfiniteDuration:
>+//     rep_hi_ : kint64max
>+//     rep_lo_ : ~0U
>+//
>+//   -InfiniteDuration:
>+//     rep_hi_ : kint64min
>+//     rep_lo_ : ~0U
>+//
>+// Arithmetic overflows/underflows to +/- infinity and saturates.
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cctype>
>+#include <cerrno>
>+#include <cmath>
>+#include <cstdint>
>+#include <cstdlib>
>+#include <cstring>
>+#include <ctime>
>+#include <functional>
>+#include <limits>
>+#include <string>
>+
>+#include "absl/base/casts.h"
>+#include "absl/numeric/int128.h"
>+#include "absl/time/time.h"
>+
>+namespace absl {
>+
>+namespace {
>+
>+using time_internal::kTicksPerNanosecond;
>+using time_internal::kTicksPerSecond;
>+
>+constexpr int64_t kint64max = std::numeric_limits<int64_t>::max();
>+constexpr int64_t kint64min = std::numeric_limits<int64_t>::min();
>+
>+// Can't use std::isinfinite() because it doesn't exist on windows.
>+inline bool IsFinite(double d) {
>+  return d != std::numeric_limits<double>::infinity() &&
>+         d != -std::numeric_limits<double>::infinity();
>+}
>+
>+// Can't use std::round() because it is only available in C++11.
>+// Note that we ignore the possibility of floating-point over/underflow.
>+template <typename Double>
>+inline double Round(Double d) {
>+  return d < 0 ? std::ceil(d - 0.5) : std::floor(d + 0.5);
>+}
>+
>+// *sec may be positive or negative.  *ticks must be in the range
>+// -kTicksPerSecond < *ticks < kTicksPerSecond.  If *ticks is negative it
>+// will be normalized to a positive value by adjusting *sec accordingly.
>+inline void NormalizeTicks(int64_t* sec, int64_t* ticks) {
>+  if (*ticks < 0) {
>+    --*sec;
>+    *ticks += kTicksPerSecond;
>+  }
>+}
>+
>+// Makes a uint128 from the absolute value of the given scalar.
>+inline uint128 MakeU128(int64_t a) {
>+  uint128 u128 = 0;
>+  if (a < 0) {
>+    ++u128;
>+    ++a;  // Makes it safe to negate 'a'
>+    a = -a;
>+  }
>+  u128 += static_cast<uint64_t>(a);
>+  return u128;
>+}
>+
>+// Makes a uint128 count of ticks out of the absolute value of the Duration.
>+inline uint128 MakeU128Ticks(Duration d) {
>+  int64_t rep_hi = time_internal::GetRepHi(d);
>+  uint32_t rep_lo = time_internal::GetRepLo(d);
>+  if (rep_hi < 0) {
>+    ++rep_hi;
>+    rep_hi = -rep_hi;
>+    rep_lo = kTicksPerSecond - rep_lo;
>+  }
>+  uint128 u128 = static_cast<uint64_t>(rep_hi);
>+  u128 *= static_cast<uint64_t>(kTicksPerSecond);
>+  u128 += rep_lo;
>+  return u128;
>+}
>+
>+// Breaks a uint128 of ticks into a Duration.
>+inline Duration MakeDurationFromU128(uint128 u128, bool is_neg) {
>+  int64_t rep_hi;
>+  uint32_t rep_lo;
>+  const uint64_t h64 = Uint128High64(u128);
>+  const uint64_t l64 = Uint128Low64(u128);
>+  if (h64 == 0) {  // fastpath
>+    const uint64_t hi = l64 / kTicksPerSecond;
>+    rep_hi = static_cast<int64_t>(hi);
>+    rep_lo = static_cast<uint32_t>(l64 - hi * kTicksPerSecond);
>+  } else {
>+    // kMaxRepHi64 is the high 64 bits of (2^63 * kTicksPerSecond).
>+    // Any positive tick count whose high 64 bits are >= kMaxRepHi64
>+    // is not representable as a Duration.  A negative tick count can
>+    // have its high 64 bits == kMaxRepHi64 but only when the low 64
>+    // bits are all zero, otherwise it is not representable either.
>+    const uint64_t kMaxRepHi64 = 0x77359400UL;
>+    if (h64 >= kMaxRepHi64) {
>+      if (is_neg && h64 == kMaxRepHi64 && l64 == 0) {
>+        // Avoid trying to represent -kint64min below.
>+        return time_internal::MakeDuration(kint64min);
>+      }
>+      return is_neg ? -InfiniteDuration() : InfiniteDuration();
>+    }
>+    const uint128 kTicksPerSecond128 = static_cast<uint64_t>(kTicksPerSecond);
>+    const uint128 hi = u128 / kTicksPerSecond128;
>+    rep_hi = static_cast<int64_t>(Uint128Low64(hi));
>+    rep_lo =
>+        static_cast<uint32_t>(Uint128Low64(u128 - hi * kTicksPerSecond128));
>+  }
>+  if (is_neg) {
>+    rep_hi = -rep_hi;
>+    if (rep_lo != 0) {
>+      --rep_hi;
>+      rep_lo = kTicksPerSecond - rep_lo;
>+    }
>+  }
>+  return time_internal::MakeDuration(rep_hi, rep_lo);
>+}
>+
>+// Convert between int64_t and uint64_t, preserving representation. This
>+// allows us to do arithmetic in the unsigned domain, where overflow has
>+// well-defined behavior. See operator+=() and operator-=().
>+//
>+// C99 7.20.1.1.1, as referenced by C++11 18.4.1.2, says, "The typedef
>+// name intN_t designates a signed integer type with width N, no padding
>+// bits, and a two's complement representation." So, we can convert to
>+// and from the corresponding uint64_t value using a bit cast.
>+inline uint64_t EncodeTwosComp(int64_t v) {
>+  return absl::bit_cast<uint64_t>(v);
>+}
>+inline int64_t DecodeTwosComp(uint64_t v) { return absl::bit_cast<int64_t>(v); }
>+
>+// Note: The overflow detection in this function is done using greater/less *or
>+// equal* because kint64max/min is too large to be represented exactly in a
>+// double (which only has 53 bits of precision). In order to avoid assigning to
>+// rep->hi a double value that is too large for an int64_t (and therefore is
>+// undefined), we must consider computations that equal kint64max/min as a
>+// double as overflow cases.
>+inline bool SafeAddRepHi(double a_hi, double b_hi, Duration* d) {
>+  double c = a_hi + b_hi;
>+  if (c >= kint64max) {
>+    *d = InfiniteDuration();
>+    return false;
>+  }
>+  if (c <= kint64min) {
>+    *d = -InfiniteDuration();
>+    return false;
>+  }
>+  *d = time_internal::MakeDuration(c, time_internal::GetRepLo(*d));
>+  return true;
>+}
>+
>+// A functor that's similar to std::multiplies<T>, except this returns the max
>+// T value instead of overflowing. This is only defined for uint128.
>+template <typename Ignored>
>+struct SafeMultiply {
>+  uint128 operator()(uint128 a, uint128 b) const {
>+    // b hi is always zero because it originated as an int64_t.
>+    assert(Uint128High64(b) == 0);
>+    // Fastpath to avoid the expensive overflow check with division.
>+    if (Uint128High64(a) == 0) {
>+      return (((Uint128Low64(a) | Uint128Low64(b)) >> 32) == 0)
>+                 ? static_cast<uint128>(Uint128Low64(a) * Uint128Low64(b))
>+                 : a * b;
>+    }
>+    return b == 0 ? b : (a > kuint128max / b) ? kuint128max : a * b;
>+  }
>+};
>+
>+// Scales (i.e., multiplies or divides, depending on the Operation template)
>+// the Duration d by the int64_t r.
>+template <template <typename> class Operation>
>+inline Duration ScaleFixed(Duration d, int64_t r) {
>+  const uint128 a = MakeU128Ticks(d);
>+  const uint128 b = MakeU128(r);
>+  const uint128 q = Operation<uint128>()(a, b);
>+  const bool is_neg = (time_internal::GetRepHi(d) < 0) != (r < 0);
>+  return MakeDurationFromU128(q, is_neg);
>+}
>+
>+// Scales (i.e., multiplies or divides, depending on the Operation template)
>+// the Duration d by the double r.
>+template <template <typename> class Operation>
>+inline Duration ScaleDouble(Duration d, double r) {
>+  Operation<double> op;
>+  double hi_doub = op(time_internal::GetRepHi(d), r);
>+  double lo_doub = op(time_internal::GetRepLo(d), r);
>+
>+  double hi_int = 0;
>+  double hi_frac = std::modf(hi_doub, &hi_int);
>+
>+  // Moves hi's fractional bits to lo.
>+  lo_doub /= kTicksPerSecond;
>+  lo_doub += hi_frac;
>+
>+  double lo_int = 0;
>+  double lo_frac = std::modf(lo_doub, &lo_int);
>+
>+  // Rolls lo into hi if necessary.
>+  int64_t lo64 = Round(lo_frac * kTicksPerSecond);
>+
>+  Duration ans;
>+  if (!SafeAddRepHi(hi_int, lo_int, &ans)) return ans;
>+  int64_t hi64 = time_internal::GetRepHi(ans);
>+  if (!SafeAddRepHi(hi64, lo64 / kTicksPerSecond, &ans)) return ans;
>+  hi64 = time_internal::GetRepHi(ans);
>+  lo64 %= kTicksPerSecond;
>+  NormalizeTicks(&hi64, &lo64);
>+  return time_internal::MakeDuration(hi64, lo64);
>+}
>+
>+// Tries to divide num by den as fast as possible by looking for common, easy
>+// cases. If the division was done, the quotient is in *q and the remainder is
>+// in *rem and true will be returned.
>+inline bool IDivFastPath(const Duration num, const Duration den, int64_t* q,
>+                         Duration* rem) {
>+  // Bail if num or den is an infinity.
>+  if (time_internal::IsInfiniteDuration(num) ||
>+      time_internal::IsInfiniteDuration(den))
>+    return false;
>+
>+  int64_t num_hi = time_internal::GetRepHi(num);
>+  uint32_t num_lo = time_internal::GetRepLo(num);
>+  int64_t den_hi = time_internal::GetRepHi(den);
>+  uint32_t den_lo = time_internal::GetRepLo(den);
>+
>+  if (den_hi == 0 && den_lo == kTicksPerNanosecond) {
>+    // Dividing by 1ns
>+    if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000000000) {
>+      *q = num_hi * 1000000000 + num_lo / kTicksPerNanosecond;
>+      *rem = time_internal::MakeDuration(0, num_lo % den_lo);
>+      return true;
>+    }
>+  } else if (den_hi == 0 && den_lo == 100 * kTicksPerNanosecond) {
>+    // Dividing by 100ns (common when converting to Universal time)
>+    if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 10000000) {
>+      *q = num_hi * 10000000 + num_lo / (100 * kTicksPerNanosecond);
>+      *rem = time_internal::MakeDuration(0, num_lo % den_lo);
>+      return true;
>+    }
>+  } else if (den_hi == 0 && den_lo == 1000 * kTicksPerNanosecond) {
>+    // Dividing by 1us
>+    if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000000) {
>+      *q = num_hi * 1000000 + num_lo / (1000 * kTicksPerNanosecond);
>+      *rem = time_internal::MakeDuration(0, num_lo % den_lo);
>+      return true;
>+    }
>+  } else if (den_hi == 0 && den_lo == 1000000 * kTicksPerNanosecond) {
>+    // Dividing by 1ms
>+    if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000) {
>+      *q = num_hi * 1000 + num_lo / (1000000 * kTicksPerNanosecond);
>+      *rem = time_internal::MakeDuration(0, num_lo % den_lo);
>+      return true;
>+    }
>+  } else if (den_hi > 0 && den_lo == 0) {
>+    // Dividing by positive multiple of 1s
>+    if (num_hi >= 0) {
>+      if (den_hi == 1) {
>+        *q = num_hi;
>+        *rem = time_internal::MakeDuration(0, num_lo);
>+        return true;
>+      }
>+      *q = num_hi / den_hi;
>+      *rem = time_internal::MakeDuration(num_hi % den_hi, num_lo);
>+      return true;
>+    }
>+    if (num_lo != 0) {
>+      num_hi += 1;
>+    }
>+    int64_t quotient = num_hi / den_hi;
>+    int64_t rem_sec = num_hi % den_hi;
>+    if (rem_sec > 0) {
>+      rem_sec -= den_hi;
>+      quotient += 1;
>+    }
>+    if (num_lo != 0) {
>+      rem_sec -= 1;
>+    }
>+    *q = quotient;
>+    *rem = time_internal::MakeDuration(rem_sec, num_lo);
>+    return true;
>+  }
>+
>+  return false;
>+}
>+
>+}  // namespace
>+
>+namespace time_internal {
>+
>+// The 'satq' argument indicates whether the quotient should saturate at the
>+// bounds of int64_t.  If it does saturate, the difference will spill over to
>+// the remainder.  If it does not saturate, the remainder remain accurate,
>+// but the returned quotient will over/underflow int64_t and should not be used.
>+int64_t IDivDuration(bool satq, const Duration num, const Duration den,
>+                   Duration* rem) {
>+  int64_t q = 0;
>+  if (IDivFastPath(num, den, &q, rem)) {
>+    return q;
>+  }
>+
>+  const bool num_neg = num < ZeroDuration();
>+  const bool den_neg = den < ZeroDuration();
>+  const bool quotient_neg = num_neg != den_neg;
>+
>+  if (time_internal::IsInfiniteDuration(num) || den == ZeroDuration()) {
>+    *rem = num_neg ? -InfiniteDuration() : InfiniteDuration();
>+    return quotient_neg ? kint64min : kint64max;
>+  }
>+  if (time_internal::IsInfiniteDuration(den)) {
>+    *rem = num;
>+    return 0;
>+  }
>+
>+  const uint128 a = MakeU128Ticks(num);
>+  const uint128 b = MakeU128Ticks(den);
>+  uint128 quotient128 = a / b;
>+
>+  if (satq) {
>+    // Limits the quotient to the range of int64_t.
>+    if (quotient128 > uint128(static_cast<uint64_t>(kint64max))) {
>+      quotient128 = quotient_neg ? uint128(static_cast<uint64_t>(kint64min))
>+                                 : uint128(static_cast<uint64_t>(kint64max));
>+    }
>+  }
>+
>+  const uint128 remainder128 = a - quotient128 * b;
>+  *rem = MakeDurationFromU128(remainder128, num_neg);
>+
>+  if (!quotient_neg || quotient128 == 0) {
>+    return Uint128Low64(quotient128) & kint64max;
>+  }
>+  // The quotient needs to be negated, but we need to carefully handle
>+  // quotient128s with the top bit on.
>+  return -static_cast<int64_t>(Uint128Low64(quotient128 - 1) & kint64max) - 1;
>+}
>+
>+}  // namespace time_internal
>+
>+//
>+// Additive operators.
>+//
>+
>+Duration& Duration::operator+=(Duration rhs) {
>+  if (time_internal::IsInfiniteDuration(*this)) return *this;
>+  if (time_internal::IsInfiniteDuration(rhs)) return *this = rhs;
>+  const int64_t orig_rep_hi = rep_hi_;
>+  rep_hi_ =
>+      DecodeTwosComp(EncodeTwosComp(rep_hi_) + EncodeTwosComp(rhs.rep_hi_));
>+  if (rep_lo_ >= kTicksPerSecond - rhs.rep_lo_) {
>+    rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) + 1);
>+    rep_lo_ -= kTicksPerSecond;
>+  }
>+  rep_lo_ += rhs.rep_lo_;
>+  if (rhs.rep_hi_ < 0 ? rep_hi_ > orig_rep_hi : rep_hi_ < orig_rep_hi) {
>+    return *this = rhs.rep_hi_ < 0 ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this;
>+}
>+
>+Duration& Duration::operator-=(Duration rhs) {
>+  if (time_internal::IsInfiniteDuration(*this)) return *this;
>+  if (time_internal::IsInfiniteDuration(rhs)) {
>+    return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  const int64_t orig_rep_hi = rep_hi_;
>+  rep_hi_ =
>+      DecodeTwosComp(EncodeTwosComp(rep_hi_) - EncodeTwosComp(rhs.rep_hi_));
>+  if (rep_lo_ < rhs.rep_lo_) {
>+    rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) - 1);
>+    rep_lo_ += kTicksPerSecond;
>+  }
>+  rep_lo_ -= rhs.rep_lo_;
>+  if (rhs.rep_hi_ < 0 ? rep_hi_ < orig_rep_hi : rep_hi_ > orig_rep_hi) {
>+    return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this;
>+}
>+
>+//
>+// Multiplicative operators.
>+//
>+
>+Duration& Duration::operator*=(int64_t r) {
>+  if (time_internal::IsInfiniteDuration(*this)) {
>+    const bool is_neg = (r < 0) != (rep_hi_ < 0);
>+    return *this = is_neg ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this = ScaleFixed<SafeMultiply>(*this, r);
>+}
>+
>+Duration& Duration::operator*=(double r) {
>+  if (time_internal::IsInfiniteDuration(*this) || !IsFinite(r)) {
>+    const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0);
>+    return *this = is_neg ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this = ScaleDouble<std::multiplies>(*this, r);
>+}
>+
>+Duration& Duration::operator/=(int64_t r) {
>+  if (time_internal::IsInfiniteDuration(*this) || r == 0) {
>+    const bool is_neg = (r < 0) != (rep_hi_ < 0);
>+    return *this = is_neg ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this = ScaleFixed<std::divides>(*this, r);
>+}
>+
>+Duration& Duration::operator/=(double r) {
>+  if (time_internal::IsInfiniteDuration(*this) || r == 0.0) {
>+    const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0);
>+    return *this = is_neg ? -InfiniteDuration() : InfiniteDuration();
>+  }
>+  return *this = ScaleDouble<std::divides>(*this, r);
>+}
>+
>+Duration& Duration::operator%=(Duration rhs) {
>+  time_internal::IDivDuration(false, *this, rhs, this);
>+  return *this;
>+}
>+
>+double FDivDuration(Duration num, Duration den) {
>+  // Arithmetic with infinity is sticky.
>+  if (time_internal::IsInfiniteDuration(num) || den == ZeroDuration()) {
>+    return (num < ZeroDuration()) == (den < ZeroDuration())
>+               ? std::numeric_limits<double>::infinity()
>+               : -std::numeric_limits<double>::infinity();
>+  }
>+  if (time_internal::IsInfiniteDuration(den)) return 0.0;
>+
>+  double a =
>+      static_cast<double>(time_internal::GetRepHi(num)) * kTicksPerSecond +
>+      time_internal::GetRepLo(num);
>+  double b =
>+      static_cast<double>(time_internal::GetRepHi(den)) * kTicksPerSecond +
>+      time_internal::GetRepLo(den);
>+  return a / b;
>+}
>+
>+//
>+// Trunc/Floor/Ceil.
>+//
>+
>+Duration Trunc(Duration d, Duration unit) {
>+  return d - (d % unit);
>+}
>+
>+Duration Floor(const Duration d, const Duration unit) {
>+  const absl::Duration td = Trunc(d, unit);
>+  return td <= d ? td : td - AbsDuration(unit);
>+}
>+
>+Duration Ceil(const Duration d, const Duration unit) {
>+  const absl::Duration td = Trunc(d, unit);
>+  return td >= d ? td : td + AbsDuration(unit);
>+}
>+
>+//
>+// Factory functions.
>+//
>+
>+Duration DurationFromTimespec(timespec ts) {
>+  if (static_cast<uint64_t>(ts.tv_nsec) < 1000 * 1000 * 1000) {
>+    int64_t ticks = ts.tv_nsec * kTicksPerNanosecond;
>+    return time_internal::MakeDuration(ts.tv_sec, ticks);
>+  }
>+  return Seconds(ts.tv_sec) + Nanoseconds(ts.tv_nsec);
>+}
>+
>+Duration DurationFromTimeval(timeval tv) {
>+  if (static_cast<uint64_t>(tv.tv_usec) < 1000 * 1000) {
>+    int64_t ticks = tv.tv_usec * 1000 * kTicksPerNanosecond;
>+    return time_internal::MakeDuration(tv.tv_sec, ticks);
>+  }
>+  return Seconds(tv.tv_sec) + Microseconds(tv.tv_usec);
>+}
>+
>+//
>+// Conversion to other duration types.
>+//
>+
>+int64_t ToInt64Nanoseconds(Duration d) {
>+  if (time_internal::GetRepHi(d) >= 0 &&
>+      time_internal::GetRepHi(d) >> 33 == 0) {
>+    return (time_internal::GetRepHi(d) * 1000 * 1000 * 1000) +
>+           (time_internal::GetRepLo(d) / kTicksPerNanosecond);
>+  }
>+  return d / Nanoseconds(1);
>+}
>+int64_t ToInt64Microseconds(Duration d) {
>+  if (time_internal::GetRepHi(d) >= 0 &&
>+      time_internal::GetRepHi(d) >> 43 == 0) {
>+    return (time_internal::GetRepHi(d) * 1000 * 1000) +
>+           (time_internal::GetRepLo(d) / (kTicksPerNanosecond * 1000));
>+  }
>+  return d / Microseconds(1);
>+}
>+int64_t ToInt64Milliseconds(Duration d) {
>+  if (time_internal::GetRepHi(d) >= 0 &&
>+      time_internal::GetRepHi(d) >> 53 == 0) {
>+    return (time_internal::GetRepHi(d) * 1000) +
>+           (time_internal::GetRepLo(d) / (kTicksPerNanosecond * 1000 * 1000));
>+  }
>+  return d / Milliseconds(1);
>+}
>+int64_t ToInt64Seconds(Duration d) {
>+  int64_t hi = time_internal::GetRepHi(d);
>+  if (time_internal::IsInfiniteDuration(d)) return hi;
>+  if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi;
>+  return hi;
>+}
>+int64_t ToInt64Minutes(Duration d) {
>+  int64_t hi = time_internal::GetRepHi(d);
>+  if (time_internal::IsInfiniteDuration(d)) return hi;
>+  if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi;
>+  return hi / 60;
>+}
>+int64_t ToInt64Hours(Duration d) {
>+  int64_t hi = time_internal::GetRepHi(d);
>+  if (time_internal::IsInfiniteDuration(d)) return hi;
>+  if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi;
>+  return hi / (60 * 60);
>+}
>+
>+double ToDoubleNanoseconds(Duration d) {
>+  return FDivDuration(d, Nanoseconds(1));
>+}
>+double ToDoubleMicroseconds(Duration d) {
>+  return FDivDuration(d, Microseconds(1));
>+}
>+double ToDoubleMilliseconds(Duration d) {
>+  return FDivDuration(d, Milliseconds(1));
>+}
>+double ToDoubleSeconds(Duration d) {
>+  return FDivDuration(d, Seconds(1));
>+}
>+double ToDoubleMinutes(Duration d) {
>+  return FDivDuration(d, Minutes(1));
>+}
>+double ToDoubleHours(Duration d) {
>+  return FDivDuration(d, Hours(1));
>+}
>+
>+timespec ToTimespec(Duration d) {
>+  timespec ts;
>+  if (!time_internal::IsInfiniteDuration(d)) {
>+    int64_t rep_hi = time_internal::GetRepHi(d);
>+    uint32_t rep_lo = time_internal::GetRepLo(d);
>+    if (rep_hi < 0) {
>+      // Tweak the fields so that unsigned division of rep_lo
>+      // maps to truncation (towards zero) for the timespec.
>+      rep_lo += kTicksPerNanosecond - 1;
>+      if (rep_lo >= kTicksPerSecond) {
>+        rep_hi += 1;
>+        rep_lo -= kTicksPerSecond;
>+      }
>+    }
>+    ts.tv_sec = rep_hi;
>+    if (ts.tv_sec == rep_hi) {  // no time_t narrowing
>+      ts.tv_nsec = rep_lo / kTicksPerNanosecond;
>+      return ts;
>+    }
>+  }
>+  if (d >= ZeroDuration()) {
>+    ts.tv_sec = std::numeric_limits<time_t>::max();
>+    ts.tv_nsec = 1000 * 1000 * 1000 - 1;
>+  } else {
>+    ts.tv_sec = std::numeric_limits<time_t>::min();
>+    ts.tv_nsec = 0;
>+  }
>+  return ts;
>+}
>+
>+timeval ToTimeval(Duration d) {
>+  timeval tv;
>+  timespec ts = ToTimespec(d);
>+  if (ts.tv_sec < 0) {
>+    // Tweak the fields so that positive division of tv_nsec
>+    // maps to truncation (towards zero) for the timeval.
>+    ts.tv_nsec += 1000 - 1;
>+    if (ts.tv_nsec >= 1000 * 1000 * 1000) {
>+      ts.tv_sec += 1;
>+      ts.tv_nsec -= 1000 * 1000 * 1000;
>+    }
>+  }
>+  tv.tv_sec = ts.tv_sec;
>+  if (tv.tv_sec != ts.tv_sec) {  // narrowing
>+    if (ts.tv_sec < 0) {
>+      tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::min();
>+      tv.tv_usec = 0;
>+    } else {
>+      tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::max();
>+      tv.tv_usec = 1000 * 1000 - 1;
>+    }
>+    return tv;
>+  }
>+  tv.tv_usec = static_cast<int>(ts.tv_nsec / 1000);  // suseconds_t
>+  return tv;
>+}
>+
>+std::chrono::nanoseconds ToChronoNanoseconds(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::nanoseconds>(d);
>+}
>+std::chrono::microseconds ToChronoMicroseconds(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::microseconds>(d);
>+}
>+std::chrono::milliseconds ToChronoMilliseconds(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::milliseconds>(d);
>+}
>+std::chrono::seconds ToChronoSeconds(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::seconds>(d);
>+}
>+std::chrono::minutes ToChronoMinutes(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::minutes>(d);
>+}
>+std::chrono::hours ToChronoHours(Duration d) {
>+  return time_internal::ToChronoDuration<std::chrono::hours>(d);
>+}
>+
>+//
>+// To/From std::string formatting.
>+//
>+
>+namespace {
>+
>+// Formats a positive 64-bit integer in the given field width.  Note that
>+// it is up to the caller of Format64() to ensure that there is sufficient
>+// space before ep to hold the conversion.
>+char* Format64(char* ep, int width, int64_t v) {
>+  do {
>+    --width;
>+    *--ep = '0' + (v % 10);  // contiguous digits
>+  } while (v /= 10);
>+  while (--width >= 0) *--ep = '0';  // zero pad
>+  return ep;
>+}
>+
>+// Helpers for FormatDuration() that format 'n' and append it to 'out'
>+// followed by the given 'unit'.  If 'n' formats to "0", nothing is
>+// appended (not even the unit).
>+
>+// A type that encapsulates how to display a value of a particular unit. For
>+// values that are displayed with fractional parts, the precision indicates
>+// where to round the value. The precision varies with the display unit because
>+// a Duration can hold only quarters of a nanosecond, so displaying information
>+// beyond that is just noise.
>+//
>+// For example, a microsecond value of 42.00025xxxxx should not display beyond 5
>+// fractional digits, because it is in the noise of what a Duration can
>+// represent.
>+struct DisplayUnit {
>+  const char* abbr;
>+  int prec;
>+  double pow10;
>+};
>+const DisplayUnit kDisplayNano = {"ns", 2, 1e2};
>+const DisplayUnit kDisplayMicro = {"us", 5, 1e5};
>+const DisplayUnit kDisplayMilli = {"ms", 8, 1e8};
>+const DisplayUnit kDisplaySec = {"s", 11, 1e11};
>+const DisplayUnit kDisplayMin = {"m", -1, 0.0};   // prec ignored
>+const DisplayUnit kDisplayHour = {"h", -1, 0.0};  // prec ignored
>+
>+void AppendNumberUnit(std::string* out, int64_t n, DisplayUnit unit) {
>+  char buf[sizeof("2562047788015216")];  // hours in max duration
>+  char* const ep = buf + sizeof(buf);
>+  char* bp = Format64(ep, 0, n);
>+  if (*bp != '0' || bp + 1 != ep) {
>+    out->append(bp, ep - bp);
>+    out->append(unit.abbr);
>+  }
>+}
>+
>+// Note: unit.prec is limited to double's digits10 value (typically 15) so it
>+// always fits in buf[].
>+void AppendNumberUnit(std::string* out, double n, DisplayUnit unit) {
>+  const int buf_size = std::numeric_limits<double>::digits10;
>+  const int prec = std::min(buf_size, unit.prec);
>+  char buf[buf_size];  // also large enough to hold integer part
>+  char* ep = buf + sizeof(buf);
>+  double d = 0;
>+  int64_t frac_part = Round(std::modf(n, &d) * unit.pow10);
>+  int64_t int_part = d;
>+  if (int_part != 0 || frac_part != 0) {
>+    char* bp = Format64(ep, 0, int_part);  // always < 1000
>+    out->append(bp, ep - bp);
>+    if (frac_part != 0) {
>+      out->push_back('.');
>+      bp = Format64(ep, prec, frac_part);
>+      while (ep[-1] == '0') --ep;
>+      out->append(bp, ep - bp);
>+    }
>+    out->append(unit.abbr);
>+  }
>+}
>+
>+}  // namespace
>+
>+// From Go's doc at http://golang.org/pkg/time/#Duration.String
>+//   [FormatDuration] returns a std::string representing the duration in the
>+//   form "72h3m0.5s".  Leading zero units are omitted.  As a special
>+//   case, durations less than one second format use a smaller unit
>+//   (milli-, micro-, or nanoseconds) to ensure that the leading digit
>+//   is non-zero.  The zero duration formats as 0, with no unit.
>+std::string FormatDuration(Duration d) {
>+  const Duration min_duration = Seconds(kint64min);
>+  if (d == min_duration) {
>+    // Avoid needing to negate kint64min by directly returning what the
>+    // following code should produce in that case.
>+    return "-2562047788015215h30m8s";
>+  }
>+  std::string s;
>+  if (d < ZeroDuration()) {
>+    s.append("-");
>+    d = -d;
>+  }
>+  if (d == InfiniteDuration()) {
>+    s.append("inf");
>+  } else if (d < Seconds(1)) {
>+    // Special case for durations with a magnitude < 1 second.  The duration
>+    // is printed as a fraction of a single unit, e.g., "1.2ms".
>+    if (d < Microseconds(1)) {
>+      AppendNumberUnit(&s, FDivDuration(d, Nanoseconds(1)), kDisplayNano);
>+    } else if (d < Milliseconds(1)) {
>+      AppendNumberUnit(&s, FDivDuration(d, Microseconds(1)), kDisplayMicro);
>+    } else {
>+      AppendNumberUnit(&s, FDivDuration(d, Milliseconds(1)), kDisplayMilli);
>+    }
>+  } else {
>+    AppendNumberUnit(&s, IDivDuration(d, Hours(1), &d), kDisplayHour);
>+    AppendNumberUnit(&s, IDivDuration(d, Minutes(1), &d), kDisplayMin);
>+    AppendNumberUnit(&s, FDivDuration(d, Seconds(1)), kDisplaySec);
>+  }
>+  if (s.empty() || s == "-") {
>+    s = "0";
>+  }
>+  return s;
>+}
>+
>+namespace {
>+
>+// A helper for ParseDuration() that parses a leading number from the given
>+// std::string and stores the result in *int_part/*frac_part/*frac_scale.  The
>+// given std::string pointer is modified to point to the first unconsumed char.
>+bool ConsumeDurationNumber(const char** dpp, int64_t* int_part,
>+                           int64_t* frac_part, int64_t* frac_scale) {
>+  *int_part = 0;
>+  *frac_part = 0;
>+  *frac_scale = 1;  // invariant: *frac_part < *frac_scale
>+  const char* start = *dpp;
>+  for (; std::isdigit(**dpp); *dpp += 1) {
>+    const int d = **dpp - '0';  // contiguous digits
>+    if (*int_part > kint64max / 10) return false;
>+    *int_part *= 10;
>+    if (*int_part > kint64max - d) return false;
>+    *int_part += d;
>+  }
>+  const bool int_part_empty = (*dpp == start);
>+  if (**dpp != '.') return !int_part_empty;
>+  for (*dpp += 1; std::isdigit(**dpp); *dpp += 1) {
>+    const int d = **dpp - '0';  // contiguous digits
>+    if (*frac_scale <= kint64max / 10) {
>+      *frac_part *= 10;
>+      *frac_part += d;
>+      *frac_scale *= 10;
>+    }
>+  }
>+  return !int_part_empty || *frac_scale != 1;
>+}
>+
>+// A helper for ParseDuration() that parses a leading unit designator (e.g.,
>+// ns, us, ms, s, m, h) from the given std::string and stores the resulting unit
>+// in "*unit".  The given std::string pointer is modified to point to the first
>+// unconsumed char.
>+bool ConsumeDurationUnit(const char** start, Duration* unit) {
>+  const char *s = *start;
>+  bool ok = true;
>+  if (strncmp(s, "ns", 2) == 0) {
>+    s += 2;
>+    *unit = Nanoseconds(1);
>+  } else if (strncmp(s, "us", 2) == 0) {
>+    s += 2;
>+    *unit = Microseconds(1);
>+  } else if (strncmp(s, "ms", 2) == 0) {
>+    s += 2;
>+    *unit = Milliseconds(1);
>+  } else if (strncmp(s, "s", 1) == 0) {
>+    s += 1;
>+    *unit = Seconds(1);
>+  } else if (strncmp(s, "m", 1) == 0) {
>+    s += 1;
>+    *unit = Minutes(1);
>+  } else if (strncmp(s, "h", 1) == 0) {
>+    s += 1;
>+    *unit = Hours(1);
>+  } else {
>+    ok = false;
>+  }
>+  *start = s;
>+  return ok;
>+}
>+
>+}  // namespace
>+
>+// From Go's doc at http://golang.org/pkg/time/#ParseDuration
>+//   [ParseDuration] parses a duration std::string.  A duration std::string is
>+//   a possibly signed sequence of decimal numbers, each with optional
>+//   fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m".
>+//   Valid time units are "ns", "us" "ms", "s", "m", "h".
>+bool ParseDuration(const std::string& dur_string, Duration* d) {
>+  const char* start = dur_string.c_str();
>+  int sign = 1;
>+
>+  if (*start == '-' || *start == '+') {
>+    sign = *start == '-' ? -1 : 1;
>+    ++start;
>+  }
>+
>+  // Can't parse a duration from an empty std::string.
>+  if (*start == '\0') {
>+    return false;
>+  }
>+
>+  // Special case for a std::string of "0".
>+  if (*start == '0' && *(start + 1) == '\0') {
>+    *d = ZeroDuration();
>+    return true;
>+  }
>+
>+  if (strcmp(start, "inf") == 0) {
>+    *d = sign * InfiniteDuration();
>+    return true;
>+  }
>+
>+  Duration dur;
>+  while (*start != '\0') {
>+    int64_t int_part;
>+    int64_t frac_part;
>+    int64_t frac_scale;
>+    Duration unit;
>+    if (!ConsumeDurationNumber(&start, &int_part, &frac_part, &frac_scale) ||
>+        !ConsumeDurationUnit(&start, &unit)) {
>+      return false;
>+    }
>+    if (int_part != 0) dur += sign * int_part * unit;
>+    if (frac_part != 0) dur += sign * frac_part * unit / frac_scale;
>+  }
>+  *d = dur;
>+  return true;
>+}
>+bool ParseFlag(const std::string& text, Duration* dst, std::string* ) {
>+  return ParseDuration(text, dst);
>+}
>+
>+std::string UnparseFlag(Duration d) { return FormatDuration(d); }
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d5657bd576a5b3eaefc84052039a7f3921b57fb7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_benchmark.cc
>@@ -0,0 +1,427 @@
>+// Copyright 2018 The Abseil Authors.
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cmath>
>+#include <cstddef>
>+#include <cstdint>
>+#include <ctime>
>+#include <string>
>+
>+#include "absl/time/time.h"
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+//
>+// Factory functions
>+//
>+
>+void BM_Duration_Factory_Nanoseconds(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Nanoseconds(i));
>+    i += 314159;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Nanoseconds);
>+
>+void BM_Duration_Factory_Microseconds(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Microseconds(i));
>+    i += 314;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Microseconds);
>+
>+void BM_Duration_Factory_Milliseconds(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Milliseconds(i));
>+    i += 1;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Milliseconds);
>+
>+void BM_Duration_Factory_Seconds(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Seconds(i));
>+    i += 1;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Seconds);
>+
>+void BM_Duration_Factory_Minutes(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Minutes(i));
>+    i += 1;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Minutes);
>+
>+void BM_Duration_Factory_Hours(benchmark::State& state) {
>+  int64_t i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Hours(i));
>+    i += 1;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_Hours);
>+
>+void BM_Duration_Factory_DoubleNanoseconds(benchmark::State& state) {
>+  double d = 1;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Nanoseconds(d));
>+    d = d * 1.00000001 + 1;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleNanoseconds);
>+
>+void BM_Duration_Factory_DoubleMicroseconds(benchmark::State& state) {
>+  double d = 1e-3;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Microseconds(d));
>+    d = d * 1.00000001 + 1e-3;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleMicroseconds);
>+
>+void BM_Duration_Factory_DoubleMilliseconds(benchmark::State& state) {
>+  double d = 1e-6;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Milliseconds(d));
>+    d = d * 1.00000001 + 1e-6;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleMilliseconds);
>+
>+void BM_Duration_Factory_DoubleSeconds(benchmark::State& state) {
>+  double d = 1e-9;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Seconds(d));
>+    d = d * 1.00000001 + 1e-9;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleSeconds);
>+
>+void BM_Duration_Factory_DoubleMinutes(benchmark::State& state) {
>+  double d = 1e-9;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Minutes(d));
>+    d = d * 1.00000001 + 1e-9;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleMinutes);
>+
>+void BM_Duration_Factory_DoubleHours(benchmark::State& state) {
>+  double d = 1e-9;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::Hours(d));
>+    d = d * 1.00000001 + 1e-9;
>+  }
>+}
>+BENCHMARK(BM_Duration_Factory_DoubleHours);
>+
>+//
>+// Arithmetic
>+//
>+
>+void BM_Duration_Addition(benchmark::State& state) {
>+  absl::Duration d = absl::Nanoseconds(1);
>+  absl::Duration step = absl::Milliseconds(1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(d += step);
>+  }
>+}
>+BENCHMARK(BM_Duration_Addition);
>+
>+void BM_Duration_Subtraction(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(std::numeric_limits<int64_t>::max());
>+  absl::Duration step = absl::Milliseconds(1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(d -= step);
>+  }
>+}
>+BENCHMARK(BM_Duration_Subtraction);
>+
>+void BM_Duration_Multiplication_Fixed(benchmark::State& state) {
>+  absl::Duration d = absl::Milliseconds(1);
>+  absl::Duration s;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(s += d * (i + 1));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_Multiplication_Fixed);
>+
>+void BM_Duration_Multiplication_Double(benchmark::State& state) {
>+  absl::Duration d = absl::Milliseconds(1);
>+  absl::Duration s;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(s += d * (i + 1.0));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_Multiplication_Double);
>+
>+void BM_Duration_Division_Fixed(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(1);
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(d /= i + 1);
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_Division_Fixed);
>+
>+void BM_Duration_Division_Double(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(1);
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(d /= i + 1.0);
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_Division_Double);
>+
>+void BM_Duration_FDivDuration_Nanoseconds(benchmark::State& state) {
>+  double d = 1;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(
>+        d += absl::FDivDuration(absl::Milliseconds(i), absl::Nanoseconds(1)));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_FDivDuration_Nanoseconds);
>+
>+void BM_Duration_IDivDuration_Nanoseconds(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(a +=
>+                             absl::IDivDuration(absl::Nanoseconds(i),
>+                                                absl::Nanoseconds(1), &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Nanoseconds);
>+
>+void BM_Duration_IDivDuration_Microseconds(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(a += absl::IDivDuration(absl::Microseconds(i),
>+                                                     absl::Microseconds(1),
>+                                                     &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Microseconds);
>+
>+void BM_Duration_IDivDuration_Milliseconds(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(a += absl::IDivDuration(absl::Milliseconds(i),
>+                                                     absl::Milliseconds(1),
>+                                                     &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Milliseconds);
>+
>+void BM_Duration_IDivDuration_Seconds(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(
>+        a += absl::IDivDuration(absl::Seconds(i), absl::Seconds(1), &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Seconds);
>+
>+void BM_Duration_IDivDuration_Minutes(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(
>+        a += absl::IDivDuration(absl::Minutes(i), absl::Minutes(1), &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Minutes);
>+
>+void BM_Duration_IDivDuration_Hours(benchmark::State& state) {
>+  int64_t a = 1;
>+  absl::Duration ignore;
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(
>+        a += absl::IDivDuration(absl::Hours(i), absl::Hours(1), &ignore));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Duration_IDivDuration_Hours);
>+
>+void BM_Duration_ToInt64Nanoseconds(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Nanoseconds(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Nanoseconds);
>+
>+void BM_Duration_ToInt64Microseconds(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Microseconds(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Microseconds);
>+
>+void BM_Duration_ToInt64Milliseconds(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Milliseconds(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Milliseconds);
>+
>+void BM_Duration_ToInt64Seconds(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Seconds(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Seconds);
>+
>+void BM_Duration_ToInt64Minutes(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Minutes(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Minutes);
>+
>+void BM_Duration_ToInt64Hours(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(100000);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToInt64Hours(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToInt64Hours);
>+
>+//
>+// To/FromTimespec
>+//
>+
>+void BM_Duration_ToTimespec_AbslTime(benchmark::State& state) {
>+  absl::Duration d = absl::Seconds(1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToTimespec(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToTimespec_AbslTime);
>+
>+ABSL_ATTRIBUTE_NOINLINE timespec DoubleToTimespec(double seconds) {
>+  timespec ts;
>+  ts.tv_sec = seconds;
>+  ts.tv_nsec = (seconds - ts.tv_sec) * (1000 * 1000 * 1000);
>+  return ts;
>+}
>+
>+void BM_Duration_ToTimespec_Double(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(DoubleToTimespec(1.0));
>+  }
>+}
>+BENCHMARK(BM_Duration_ToTimespec_Double);
>+
>+void BM_Duration_FromTimespec_AbslTime(benchmark::State& state) {
>+  timespec ts;
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = 0;
>+  while (state.KeepRunning()) {
>+    if (++ts.tv_nsec == 1000 * 1000 * 1000) {
>+      ++ts.tv_sec;
>+      ts.tv_nsec = 0;
>+    }
>+    benchmark::DoNotOptimize(absl::DurationFromTimespec(ts));
>+  }
>+}
>+BENCHMARK(BM_Duration_FromTimespec_AbslTime);
>+
>+ABSL_ATTRIBUTE_NOINLINE double TimespecToDouble(timespec ts) {
>+  return ts.tv_sec + (ts.tv_nsec / (1000 * 1000 * 1000));
>+}
>+
>+void BM_Duration_FromTimespec_Double(benchmark::State& state) {
>+  timespec ts;
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = 0;
>+  while (state.KeepRunning()) {
>+    if (++ts.tv_nsec == 1000 * 1000 * 1000) {
>+      ++ts.tv_sec;
>+      ts.tv_nsec = 0;
>+    }
>+    benchmark::DoNotOptimize(TimespecToDouble(ts));
>+  }
>+}
>+BENCHMARK(BM_Duration_FromTimespec_Double);
>+
>+//
>+// String conversions
>+//
>+
>+const char* const kDurations[] = {
>+    "0",                                   // 0
>+    "123ns",                               // 1
>+    "1h2m3s",                              // 2
>+    "-2h3m4.005006007s",                   // 3
>+    "2562047788015215h30m7.99999999975s",  // 4
>+};
>+const int kNumDurations = sizeof(kDurations) / sizeof(kDurations[0]);
>+
>+void BM_Duration_FormatDuration(benchmark::State& state) {
>+  const std::string s = kDurations[state.range(0)];
>+  state.SetLabel(s);
>+  absl::Duration d;
>+  absl::ParseDuration(kDurations[state.range(0)], &d);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::FormatDuration(d));
>+  }
>+}
>+BENCHMARK(BM_Duration_FormatDuration)->DenseRange(0, kNumDurations - 1);
>+
>+void BM_Duration_ParseDuration(benchmark::State& state) {
>+  const std::string s = kDurations[state.range(0)];
>+  state.SetLabel(s);
>+  absl::Duration d;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ParseDuration(s, &d));
>+  }
>+}
>+BENCHMARK(BM_Duration_ParseDuration)->DenseRange(0, kNumDurations - 1);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7ae25dc68f9a622128a4e4e889c0c6ffd2dff649
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/duration_test.cc
>@@ -0,0 +1,1764 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <chrono>  // NOLINT(build/c++11)
>+#include <cmath>
>+#include <cstdint>
>+#include <ctime>
>+#include <iomanip>
>+#include <limits>
>+#include <random>
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/time/time.h"
>+
>+namespace {
>+
>+constexpr int64_t kint64max = std::numeric_limits<int64_t>::max();
>+constexpr int64_t kint64min = std::numeric_limits<int64_t>::min();
>+
>+// Approximates the given number of years. This is only used to make some test
>+// code more readable.
>+absl::Duration ApproxYears(int64_t n) { return absl::Hours(n) * 365 * 24; }
>+
>+// A gMock matcher to match timespec values. Use this matcher like:
>+// timespec ts1, ts2;
>+// EXPECT_THAT(ts1, TimespecMatcher(ts2));
>+MATCHER_P(TimespecMatcher, ts, "") {
>+  if (ts.tv_sec == arg.tv_sec && ts.tv_nsec == arg.tv_nsec)
>+    return true;
>+  *result_listener << "expected: {" << ts.tv_sec << ", " << ts.tv_nsec << "} ";
>+  *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_nsec << "}";
>+  return false;
>+}
>+
>+// A gMock matcher to match timeval values. Use this matcher like:
>+// timeval tv1, tv2;
>+// EXPECT_THAT(tv1, TimevalMatcher(tv2));
>+MATCHER_P(TimevalMatcher, tv, "") {
>+  if (tv.tv_sec == arg.tv_sec && tv.tv_usec == arg.tv_usec)
>+    return true;
>+  *result_listener << "expected: {" << tv.tv_sec << ", " << tv.tv_usec << "} ";
>+  *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_usec << "}";
>+  return false;
>+}
>+
>+TEST(Duration, ValueSemantics) {
>+  // If this compiles, the test passes.
>+  constexpr absl::Duration a;      // Default construction
>+  constexpr absl::Duration b = a;  // Copy construction
>+  constexpr absl::Duration c(b);   // Copy construction (again)
>+
>+  absl::Duration d;
>+  d = c;  // Assignment
>+}
>+
>+TEST(Duration, Factories) {
>+  constexpr absl::Duration zero = absl::ZeroDuration();
>+  constexpr absl::Duration nano = absl::Nanoseconds(1);
>+  constexpr absl::Duration micro = absl::Microseconds(1);
>+  constexpr absl::Duration milli = absl::Milliseconds(1);
>+  constexpr absl::Duration sec = absl::Seconds(1);
>+  constexpr absl::Duration min = absl::Minutes(1);
>+  constexpr absl::Duration hour = absl::Hours(1);
>+
>+  EXPECT_EQ(zero, absl::Duration());
>+  EXPECT_EQ(zero, absl::Seconds(0));
>+  EXPECT_EQ(nano, absl::Nanoseconds(1));
>+  EXPECT_EQ(micro, absl::Nanoseconds(1000));
>+  EXPECT_EQ(milli, absl::Microseconds(1000));
>+  EXPECT_EQ(sec, absl::Milliseconds(1000));
>+  EXPECT_EQ(min, absl::Seconds(60));
>+  EXPECT_EQ(hour, absl::Minutes(60));
>+
>+  // Tests factory limits
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+  EXPECT_GT(inf, absl::Seconds(kint64max));
>+  EXPECT_LT(-inf, absl::Seconds(kint64min));
>+  EXPECT_LT(-inf, absl::Seconds(-kint64max));
>+
>+  EXPECT_EQ(inf, absl::Minutes(kint64max));
>+  EXPECT_EQ(-inf, absl::Minutes(kint64min));
>+  EXPECT_EQ(-inf, absl::Minutes(-kint64max));
>+  EXPECT_GT(inf, absl::Minutes(kint64max / 60));
>+  EXPECT_LT(-inf, absl::Minutes(kint64min / 60));
>+  EXPECT_LT(-inf, absl::Minutes(-kint64max / 60));
>+
>+  EXPECT_EQ(inf, absl::Hours(kint64max));
>+  EXPECT_EQ(-inf, absl::Hours(kint64min));
>+  EXPECT_EQ(-inf, absl::Hours(-kint64max));
>+  EXPECT_GT(inf, absl::Hours(kint64max / 3600));
>+  EXPECT_LT(-inf, absl::Hours(kint64min / 3600));
>+  EXPECT_LT(-inf, absl::Hours(-kint64max / 3600));
>+}
>+
>+TEST(Duration, ToConversion) {
>+#define TEST_DURATION_CONVERSION(UNIT)                                  \
>+  do {                                                                  \
>+    const absl::Duration d = absl::UNIT(1.5);                           \
>+    constexpr absl::Duration z = absl::ZeroDuration();                  \
>+    constexpr absl::Duration inf = absl::InfiniteDuration();            \
>+    constexpr double dbl_inf = std::numeric_limits<double>::infinity(); \
>+    EXPECT_EQ(kint64min, absl::ToInt64##UNIT(-inf));                    \
>+    EXPECT_EQ(-1, absl::ToInt64##UNIT(-d));                             \
>+    EXPECT_EQ(0, absl::ToInt64##UNIT(z));                               \
>+    EXPECT_EQ(1, absl::ToInt64##UNIT(d));                               \
>+    EXPECT_EQ(kint64max, absl::ToInt64##UNIT(inf));                     \
>+    EXPECT_EQ(-dbl_inf, absl::ToDouble##UNIT(-inf));                    \
>+    EXPECT_EQ(-1.5, absl::ToDouble##UNIT(-d));                          \
>+    EXPECT_EQ(0, absl::ToDouble##UNIT(z));                              \
>+    EXPECT_EQ(1.5, absl::ToDouble##UNIT(d));                            \
>+    EXPECT_EQ(dbl_inf, absl::ToDouble##UNIT(inf));                      \
>+  } while (0)
>+
>+  TEST_DURATION_CONVERSION(Nanoseconds);
>+  TEST_DURATION_CONVERSION(Microseconds);
>+  TEST_DURATION_CONVERSION(Milliseconds);
>+  TEST_DURATION_CONVERSION(Seconds);
>+  TEST_DURATION_CONVERSION(Minutes);
>+  TEST_DURATION_CONVERSION(Hours);
>+
>+#undef TEST_DURATION_CONVERSION
>+}
>+
>+template <int64_t N>
>+void TestToConversion() {
>+  constexpr absl::Duration nano = absl::Nanoseconds(N);
>+  EXPECT_EQ(N, absl::ToInt64Nanoseconds(nano));
>+  EXPECT_EQ(0, absl::ToInt64Microseconds(nano));
>+  EXPECT_EQ(0, absl::ToInt64Milliseconds(nano));
>+  EXPECT_EQ(0, absl::ToInt64Seconds(nano));
>+  EXPECT_EQ(0, absl::ToInt64Minutes(nano));
>+  EXPECT_EQ(0, absl::ToInt64Hours(nano));
>+  const absl::Duration micro = absl::Microseconds(N);
>+  EXPECT_EQ(N * 1000, absl::ToInt64Nanoseconds(micro));
>+  EXPECT_EQ(N, absl::ToInt64Microseconds(micro));
>+  EXPECT_EQ(0, absl::ToInt64Milliseconds(micro));
>+  EXPECT_EQ(0, absl::ToInt64Seconds(micro));
>+  EXPECT_EQ(0, absl::ToInt64Minutes(micro));
>+  EXPECT_EQ(0, absl::ToInt64Hours(micro));
>+  const absl::Duration milli = absl::Milliseconds(N);
>+  EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Nanoseconds(milli));
>+  EXPECT_EQ(N * 1000, absl::ToInt64Microseconds(milli));
>+  EXPECT_EQ(N, absl::ToInt64Milliseconds(milli));
>+  EXPECT_EQ(0, absl::ToInt64Seconds(milli));
>+  EXPECT_EQ(0, absl::ToInt64Minutes(milli));
>+  EXPECT_EQ(0, absl::ToInt64Hours(milli));
>+  const absl::Duration sec = absl::Seconds(N);
>+  EXPECT_EQ(N * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(sec));
>+  EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Microseconds(sec));
>+  EXPECT_EQ(N * 1000, absl::ToInt64Milliseconds(sec));
>+  EXPECT_EQ(N, absl::ToInt64Seconds(sec));
>+  EXPECT_EQ(0, absl::ToInt64Minutes(sec));
>+  EXPECT_EQ(0, absl::ToInt64Hours(sec));
>+  const absl::Duration min = absl::Minutes(N);
>+  EXPECT_EQ(N * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(min));
>+  EXPECT_EQ(N * 60 * 1000 * 1000, absl::ToInt64Microseconds(min));
>+  EXPECT_EQ(N * 60 * 1000, absl::ToInt64Milliseconds(min));
>+  EXPECT_EQ(N * 60, absl::ToInt64Seconds(min));
>+  EXPECT_EQ(N, absl::ToInt64Minutes(min));
>+  EXPECT_EQ(0, absl::ToInt64Hours(min));
>+  const absl::Duration hour = absl::Hours(N);
>+  EXPECT_EQ(N * 60 * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(hour));
>+  EXPECT_EQ(N * 60 * 60 * 1000 * 1000, absl::ToInt64Microseconds(hour));
>+  EXPECT_EQ(N * 60 * 60 * 1000, absl::ToInt64Milliseconds(hour));
>+  EXPECT_EQ(N * 60 * 60, absl::ToInt64Seconds(hour));
>+  EXPECT_EQ(N * 60, absl::ToInt64Minutes(hour));
>+  EXPECT_EQ(N, absl::ToInt64Hours(hour));
>+}
>+
>+TEST(Duration, ToConversionDeprecated) {
>+  TestToConversion<43>();
>+  TestToConversion<1>();
>+  TestToConversion<0>();
>+  TestToConversion<-1>();
>+  TestToConversion<-43>();
>+}
>+
>+template <int64_t N>
>+void TestFromChronoBasicEquality() {
>+  using std::chrono::nanoseconds;
>+  using std::chrono::microseconds;
>+  using std::chrono::milliseconds;
>+  using std::chrono::seconds;
>+  using std::chrono::minutes;
>+  using std::chrono::hours;
>+
>+  static_assert(absl::Nanoseconds(N) == absl::FromChrono(nanoseconds(N)), "");
>+  static_assert(absl::Microseconds(N) == absl::FromChrono(microseconds(N)), "");
>+  static_assert(absl::Milliseconds(N) == absl::FromChrono(milliseconds(N)), "");
>+  static_assert(absl::Seconds(N) == absl::FromChrono(seconds(N)), "");
>+  static_assert(absl::Minutes(N) == absl::FromChrono(minutes(N)), "");
>+  static_assert(absl::Hours(N) == absl::FromChrono(hours(N)), "");
>+}
>+
>+TEST(Duration, FromChrono) {
>+  TestFromChronoBasicEquality<-123>();
>+  TestFromChronoBasicEquality<-1>();
>+  TestFromChronoBasicEquality<0>();
>+  TestFromChronoBasicEquality<1>();
>+  TestFromChronoBasicEquality<123>();
>+
>+  // Minutes (might, depending on the platform) saturate at +inf.
>+  const auto chrono_minutes_max = std::chrono::minutes::max();
>+  const auto minutes_max = absl::FromChrono(chrono_minutes_max);
>+  const int64_t minutes_max_count = chrono_minutes_max.count();
>+  if (minutes_max_count > kint64max / 60) {
>+    EXPECT_EQ(absl::InfiniteDuration(), minutes_max);
>+  } else {
>+    EXPECT_EQ(absl::Minutes(minutes_max_count), minutes_max);
>+  }
>+
>+  // Minutes (might, depending on the platform) saturate at -inf.
>+  const auto chrono_minutes_min = std::chrono::minutes::min();
>+  const auto minutes_min = absl::FromChrono(chrono_minutes_min);
>+  const int64_t minutes_min_count = chrono_minutes_min.count();
>+  if (minutes_min_count < kint64min / 60) {
>+    EXPECT_EQ(-absl::InfiniteDuration(), minutes_min);
>+  } else {
>+    EXPECT_EQ(absl::Minutes(minutes_min_count), minutes_min);
>+  }
>+
>+  // Hours (might, depending on the platform) saturate at +inf.
>+  const auto chrono_hours_max = std::chrono::hours::max();
>+  const auto hours_max = absl::FromChrono(chrono_hours_max);
>+  const int64_t hours_max_count = chrono_hours_max.count();
>+  if (hours_max_count > kint64max / 3600) {
>+    EXPECT_EQ(absl::InfiniteDuration(), hours_max);
>+  } else {
>+    EXPECT_EQ(absl::Hours(hours_max_count), hours_max);
>+  }
>+
>+  // Hours (might, depending on the platform) saturate at -inf.
>+  const auto chrono_hours_min = std::chrono::hours::min();
>+  const auto hours_min = absl::FromChrono(chrono_hours_min);
>+  const int64_t hours_min_count = chrono_hours_min.count();
>+  if (hours_min_count < kint64min / 3600) {
>+    EXPECT_EQ(-absl::InfiniteDuration(), hours_min);
>+  } else {
>+    EXPECT_EQ(absl::Hours(hours_min_count), hours_min);
>+  }
>+}
>+
>+template <int64_t N>
>+void TestToChrono() {
>+  using std::chrono::nanoseconds;
>+  using std::chrono::microseconds;
>+  using std::chrono::milliseconds;
>+  using std::chrono::seconds;
>+  using std::chrono::minutes;
>+  using std::chrono::hours;
>+
>+  EXPECT_EQ(nanoseconds(N), absl::ToChronoNanoseconds(absl::Nanoseconds(N)));
>+  EXPECT_EQ(microseconds(N), absl::ToChronoMicroseconds(absl::Microseconds(N)));
>+  EXPECT_EQ(milliseconds(N), absl::ToChronoMilliseconds(absl::Milliseconds(N)));
>+  EXPECT_EQ(seconds(N), absl::ToChronoSeconds(absl::Seconds(N)));
>+
>+  constexpr auto absl_minutes = absl::Minutes(N);
>+  auto chrono_minutes = minutes(N);
>+  if (absl_minutes == -absl::InfiniteDuration()) {
>+    chrono_minutes = minutes::min();
>+  } else if (absl_minutes == absl::InfiniteDuration()) {
>+    chrono_minutes = minutes::max();
>+  }
>+  EXPECT_EQ(chrono_minutes, absl::ToChronoMinutes(absl_minutes));
>+
>+  constexpr auto absl_hours = absl::Hours(N);
>+  auto chrono_hours = hours(N);
>+  if (absl_hours == -absl::InfiniteDuration()) {
>+    chrono_hours = hours::min();
>+  } else if (absl_hours == absl::InfiniteDuration()) {
>+    chrono_hours = hours::max();
>+  }
>+  EXPECT_EQ(chrono_hours, absl::ToChronoHours(absl_hours));
>+}
>+
>+TEST(Duration, ToChrono) {
>+  using std::chrono::nanoseconds;
>+  using std::chrono::microseconds;
>+  using std::chrono::milliseconds;
>+  using std::chrono::seconds;
>+  using std::chrono::minutes;
>+  using std::chrono::hours;
>+
>+  TestToChrono<kint64min>();
>+  TestToChrono<-1>();
>+  TestToChrono<0>();
>+  TestToChrono<1>();
>+  TestToChrono<kint64max>();
>+
>+  // Verify truncation toward zero.
>+  const auto tick = absl::Nanoseconds(1) / 4;
>+  EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(tick));
>+  EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(-tick));
>+  EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(tick));
>+  EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(-tick));
>+  EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(tick));
>+  EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(-tick));
>+  EXPECT_EQ(seconds(0), absl::ToChronoSeconds(tick));
>+  EXPECT_EQ(seconds(0), absl::ToChronoSeconds(-tick));
>+  EXPECT_EQ(minutes(0), absl::ToChronoMinutes(tick));
>+  EXPECT_EQ(minutes(0), absl::ToChronoMinutes(-tick));
>+  EXPECT_EQ(hours(0), absl::ToChronoHours(tick));
>+  EXPECT_EQ(hours(0), absl::ToChronoHours(-tick));
>+
>+  // Verifies +/- infinity saturation at max/min.
>+  constexpr auto inf = absl::InfiniteDuration();
>+  EXPECT_EQ(nanoseconds::min(), absl::ToChronoNanoseconds(-inf));
>+  EXPECT_EQ(nanoseconds::max(), absl::ToChronoNanoseconds(inf));
>+  EXPECT_EQ(microseconds::min(), absl::ToChronoMicroseconds(-inf));
>+  EXPECT_EQ(microseconds::max(), absl::ToChronoMicroseconds(inf));
>+  EXPECT_EQ(milliseconds::min(), absl::ToChronoMilliseconds(-inf));
>+  EXPECT_EQ(milliseconds::max(), absl::ToChronoMilliseconds(inf));
>+  EXPECT_EQ(seconds::min(), absl::ToChronoSeconds(-inf));
>+  EXPECT_EQ(seconds::max(), absl::ToChronoSeconds(inf));
>+  EXPECT_EQ(minutes::min(), absl::ToChronoMinutes(-inf));
>+  EXPECT_EQ(minutes::max(), absl::ToChronoMinutes(inf));
>+  EXPECT_EQ(hours::min(), absl::ToChronoHours(-inf));
>+  EXPECT_EQ(hours::max(), absl::ToChronoHours(inf));
>+}
>+
>+TEST(Duration, FactoryOverloads) {
>+  enum E { kOne = 1 };
>+#define TEST_FACTORY_OVERLOADS(NAME)                                          \
>+  EXPECT_EQ(1, NAME(kOne) / NAME(kOne));                                      \
>+  EXPECT_EQ(1, NAME(static_cast<int8_t>(1)) / NAME(1));                       \
>+  EXPECT_EQ(1, NAME(static_cast<int16_t>(1)) / NAME(1));                      \
>+  EXPECT_EQ(1, NAME(static_cast<int32_t>(1)) / NAME(1));                      \
>+  EXPECT_EQ(1, NAME(static_cast<int64_t>(1)) / NAME(1));                      \
>+  EXPECT_EQ(1, NAME(static_cast<uint8_t>(1)) / NAME(1));                      \
>+  EXPECT_EQ(1, NAME(static_cast<uint16_t>(1)) / NAME(1));                     \
>+  EXPECT_EQ(1, NAME(static_cast<uint32_t>(1)) / NAME(1));                     \
>+  EXPECT_EQ(1, NAME(static_cast<uint64_t>(1)) / NAME(1));                     \
>+  EXPECT_EQ(NAME(1) / 2, NAME(static_cast<float>(0.5)));                      \
>+  EXPECT_EQ(NAME(1) / 2, NAME(static_cast<double>(0.5)));                     \
>+  EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<float>(1.5)), NAME(1))); \
>+  EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<double>(1.5)), NAME(1)));
>+
>+  TEST_FACTORY_OVERLOADS(absl::Nanoseconds);
>+  TEST_FACTORY_OVERLOADS(absl::Microseconds);
>+  TEST_FACTORY_OVERLOADS(absl::Milliseconds);
>+  TEST_FACTORY_OVERLOADS(absl::Seconds);
>+  TEST_FACTORY_OVERLOADS(absl::Minutes);
>+  TEST_FACTORY_OVERLOADS(absl::Hours);
>+
>+#undef TEST_FACTORY_OVERLOADS
>+
>+  EXPECT_EQ(absl::Milliseconds(1500), absl::Seconds(1.5));
>+  EXPECT_LT(absl::Nanoseconds(1), absl::Nanoseconds(1.5));
>+  EXPECT_GT(absl::Nanoseconds(2), absl::Nanoseconds(1.5));
>+
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Nanoseconds(dbl_inf));
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Microseconds(dbl_inf));
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Milliseconds(dbl_inf));
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Seconds(dbl_inf));
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Minutes(dbl_inf));
>+  EXPECT_EQ(absl::InfiniteDuration(), absl::Hours(dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Nanoseconds(-dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Microseconds(-dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Milliseconds(-dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Seconds(-dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Minutes(-dbl_inf));
>+  EXPECT_EQ(-absl::InfiniteDuration(), absl::Hours(-dbl_inf));
>+}
>+
>+TEST(Duration, InfinityExamples) {
>+  // These examples are used in the documentation in time.h. They are
>+  // written so that they can be copy-n-pasted easily.
>+
>+  constexpr absl::Duration inf = absl::InfiniteDuration();
>+  constexpr absl::Duration d = absl::Seconds(1);  // Any finite duration
>+
>+  EXPECT_TRUE(inf == inf + inf);
>+  EXPECT_TRUE(inf == inf + d);
>+  EXPECT_TRUE(inf == inf - inf);
>+  EXPECT_TRUE(-inf == d - inf);
>+
>+  EXPECT_TRUE(inf == d * 1e100);
>+  EXPECT_TRUE(0 == d / inf);  // NOLINT(readability/check)
>+
>+  // Division by zero returns infinity, or kint64min/MAX where necessary.
>+  EXPECT_TRUE(inf == d / 0);
>+  EXPECT_TRUE(kint64max == d / absl::ZeroDuration());
>+}
>+
>+TEST(Duration, InfinityComparison) {
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  const absl::Duration any_dur = absl::Seconds(1);
>+
>+  // Equality
>+  EXPECT_EQ(inf, inf);
>+  EXPECT_EQ(-inf, -inf);
>+  EXPECT_NE(inf, -inf);
>+  EXPECT_NE(any_dur, inf);
>+  EXPECT_NE(any_dur, -inf);
>+
>+  // Relational
>+  EXPECT_GT(inf, any_dur);
>+  EXPECT_LT(-inf, any_dur);
>+  EXPECT_LT(-inf, inf);
>+  EXPECT_GT(inf, -inf);
>+}
>+
>+TEST(Duration, InfinityAddition) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration sec_min = absl::Seconds(kint64min);
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+  // Addition
>+  EXPECT_EQ(inf, inf + inf);
>+  EXPECT_EQ(inf, inf + -inf);
>+  EXPECT_EQ(-inf, -inf + inf);
>+  EXPECT_EQ(-inf, -inf + -inf);
>+
>+  EXPECT_EQ(inf, inf + any_dur);
>+  EXPECT_EQ(inf, any_dur + inf);
>+  EXPECT_EQ(-inf, -inf + any_dur);
>+  EXPECT_EQ(-inf, any_dur + -inf);
>+
>+  // Interesting case
>+  absl::Duration almost_inf = sec_max + absl::Nanoseconds(999999999);
>+  EXPECT_GT(inf, almost_inf);
>+  almost_inf += -absl::Nanoseconds(999999999);
>+  EXPECT_GT(inf, almost_inf);
>+
>+  // Addition overflow/underflow
>+  EXPECT_EQ(inf, sec_max + absl::Seconds(1));
>+  EXPECT_EQ(inf, sec_max + sec_max);
>+  EXPECT_EQ(-inf, sec_min + -absl::Seconds(1));
>+  EXPECT_EQ(-inf, sec_min + -sec_max);
>+
>+  // For reference: IEEE 754 behavior
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  EXPECT_TRUE(std::isinf(dbl_inf + dbl_inf));
>+  EXPECT_TRUE(std::isnan(dbl_inf + -dbl_inf));  // We return inf
>+  EXPECT_TRUE(std::isnan(-dbl_inf + dbl_inf));  // We return inf
>+  EXPECT_TRUE(std::isinf(-dbl_inf + -dbl_inf));
>+}
>+
>+TEST(Duration, InfinitySubtraction) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration sec_min = absl::Seconds(kint64min);
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+  // Subtraction
>+  EXPECT_EQ(inf, inf - inf);
>+  EXPECT_EQ(inf, inf - -inf);
>+  EXPECT_EQ(-inf, -inf - inf);
>+  EXPECT_EQ(-inf, -inf - -inf);
>+
>+  EXPECT_EQ(inf, inf - any_dur);
>+  EXPECT_EQ(-inf, any_dur - inf);
>+  EXPECT_EQ(-inf, -inf - any_dur);
>+  EXPECT_EQ(inf, any_dur - -inf);
>+
>+  // Subtraction overflow/underflow
>+  EXPECT_EQ(inf, sec_max - -absl::Seconds(1));
>+  EXPECT_EQ(inf, sec_max - -sec_max);
>+  EXPECT_EQ(-inf, sec_min - absl::Seconds(1));
>+  EXPECT_EQ(-inf, sec_min - sec_max);
>+
>+  // Interesting case
>+  absl::Duration almost_neg_inf = sec_min;
>+  EXPECT_LT(-inf, almost_neg_inf);
>+  almost_neg_inf -= -absl::Nanoseconds(1);
>+  EXPECT_LT(-inf, almost_neg_inf);
>+
>+  // For reference: IEEE 754 behavior
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  EXPECT_TRUE(std::isnan(dbl_inf - dbl_inf));  // We return inf
>+  EXPECT_TRUE(std::isinf(dbl_inf - -dbl_inf));
>+  EXPECT_TRUE(std::isinf(-dbl_inf - dbl_inf));
>+  EXPECT_TRUE(std::isnan(-dbl_inf - -dbl_inf));  // We return inf
>+}
>+
>+TEST(Duration, InfinityMultiplication) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration sec_min = absl::Seconds(kint64min);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+#define TEST_INF_MUL_WITH_TYPE(T)                                     \
>+  EXPECT_EQ(inf, inf * static_cast<T>(2));                            \
>+  EXPECT_EQ(-inf, inf * static_cast<T>(-2));                          \
>+  EXPECT_EQ(-inf, -inf * static_cast<T>(2));                          \
>+  EXPECT_EQ(inf, -inf * static_cast<T>(-2));                          \
>+  EXPECT_EQ(inf, inf * static_cast<T>(0));                            \
>+  EXPECT_EQ(-inf, -inf * static_cast<T>(0));                          \
>+  EXPECT_EQ(inf, sec_max * static_cast<T>(2));                        \
>+  EXPECT_EQ(inf, sec_min * static_cast<T>(-2));                       \
>+  EXPECT_EQ(inf, (sec_max / static_cast<T>(2)) * static_cast<T>(3));  \
>+  EXPECT_EQ(-inf, sec_max * static_cast<T>(-2));                      \
>+  EXPECT_EQ(-inf, sec_min * static_cast<T>(2));                       \
>+  EXPECT_EQ(-inf, (sec_min / static_cast<T>(2)) * static_cast<T>(3));
>+
>+  TEST_INF_MUL_WITH_TYPE(int64_t);  // NOLINT(readability/function)
>+  TEST_INF_MUL_WITH_TYPE(double);   // NOLINT(readability/function)
>+
>+#undef TEST_INF_MUL_WITH_TYPE
>+
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  EXPECT_EQ(inf, inf * dbl_inf);
>+  EXPECT_EQ(-inf, -inf * dbl_inf);
>+  EXPECT_EQ(-inf, inf * -dbl_inf);
>+  EXPECT_EQ(inf, -inf * -dbl_inf);
>+
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  EXPECT_EQ(inf, any_dur * dbl_inf);
>+  EXPECT_EQ(-inf, -any_dur * dbl_inf);
>+  EXPECT_EQ(-inf, any_dur * -dbl_inf);
>+  EXPECT_EQ(inf, -any_dur * -dbl_inf);
>+
>+  // Fixed-point multiplication will produce a finite value, whereas floating
>+  // point fuzziness will overflow to inf.
>+  EXPECT_NE(absl::InfiniteDuration(), absl::Seconds(1) * kint64max);
>+  EXPECT_EQ(inf, absl::Seconds(1) * static_cast<double>(kint64max));
>+  EXPECT_NE(-absl::InfiniteDuration(), absl::Seconds(1) * kint64min);
>+  EXPECT_EQ(-inf, absl::Seconds(1) * static_cast<double>(kint64min));
>+
>+  // Note that sec_max * or / by 1.0 overflows to inf due to the 53-bit
>+  // limitations of double.
>+  EXPECT_NE(inf, sec_max);
>+  EXPECT_NE(inf, sec_max / 1);
>+  EXPECT_EQ(inf, sec_max / 1.0);
>+  EXPECT_NE(inf, sec_max * 1);
>+  EXPECT_EQ(inf, sec_max * 1.0);
>+}
>+
>+TEST(Duration, InfinityDivision) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration sec_min = absl::Seconds(kint64min);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+  // Division of Duration by a double
>+#define TEST_INF_DIV_WITH_TYPE(T)            \
>+  EXPECT_EQ(inf, inf / static_cast<T>(2));   \
>+  EXPECT_EQ(-inf, inf / static_cast<T>(-2)); \
>+  EXPECT_EQ(-inf, -inf / static_cast<T>(2)); \
>+  EXPECT_EQ(inf, -inf / static_cast<T>(-2));
>+
>+  TEST_INF_DIV_WITH_TYPE(int64_t);  // NOLINT(readability/function)
>+  TEST_INF_DIV_WITH_TYPE(double);   // NOLINT(readability/function)
>+
>+#undef TEST_INF_DIV_WITH_TYPE
>+
>+  // Division of Duration by a double overflow/underflow
>+  EXPECT_EQ(inf, sec_max / 0.5);
>+  EXPECT_EQ(inf, sec_min / -0.5);
>+  EXPECT_EQ(inf, ((sec_max / 0.5) + absl::Seconds(1)) / 0.5);
>+  EXPECT_EQ(-inf, sec_max / -0.5);
>+  EXPECT_EQ(-inf, sec_min / 0.5);
>+  EXPECT_EQ(-inf, ((sec_min / 0.5) - absl::Seconds(1)) / 0.5);
>+
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  EXPECT_EQ(inf, inf / dbl_inf);
>+  EXPECT_EQ(-inf, inf / -dbl_inf);
>+  EXPECT_EQ(-inf, -inf / dbl_inf);
>+  EXPECT_EQ(inf, -inf / -dbl_inf);
>+
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  EXPECT_EQ(absl::ZeroDuration(), any_dur / dbl_inf);
>+  EXPECT_EQ(absl::ZeroDuration(), any_dur / -dbl_inf);
>+  EXPECT_EQ(absl::ZeroDuration(), -any_dur / dbl_inf);
>+  EXPECT_EQ(absl::ZeroDuration(), -any_dur / -dbl_inf);
>+}
>+
>+TEST(Duration, InfinityModulus) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+
>+  EXPECT_EQ(inf, inf % inf);
>+  EXPECT_EQ(inf, inf % -inf);
>+  EXPECT_EQ(-inf, -inf % -inf);
>+  EXPECT_EQ(-inf, -inf % inf);
>+
>+  EXPECT_EQ(any_dur, any_dur % inf);
>+  EXPECT_EQ(any_dur, any_dur % -inf);
>+  EXPECT_EQ(-any_dur, -any_dur % inf);
>+  EXPECT_EQ(-any_dur, -any_dur % -inf);
>+
>+  EXPECT_EQ(inf, inf % -any_dur);
>+  EXPECT_EQ(inf, inf % any_dur);
>+  EXPECT_EQ(-inf, -inf % -any_dur);
>+  EXPECT_EQ(-inf, -inf % any_dur);
>+
>+  // Remainder isn't affected by overflow.
>+  EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Seconds(1));
>+  EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Milliseconds(1));
>+  EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Microseconds(1));
>+  EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1));
>+  EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1) / 4);
>+}
>+
>+TEST(Duration, InfinityIDiv) {
>+  const absl::Duration sec_max = absl::Seconds(kint64max);
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+
>+  // IDivDuration (int64_t return value + a remainer)
>+  absl::Duration rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64max, absl::IDivDuration(inf, inf, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -inf, &rem));
>+  EXPECT_EQ(-inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64max, absl::IDivDuration(inf, any_dur, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(0, absl::IDivDuration(any_dur, inf, &rem));
>+  EXPECT_EQ(any_dur, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -any_dur, &rem));
>+  EXPECT_EQ(-inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(0, absl::IDivDuration(-any_dur, -inf, &rem));
>+  EXPECT_EQ(-any_dur, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64min, absl::IDivDuration(-inf, inf, &rem));
>+  EXPECT_EQ(-inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64min, absl::IDivDuration(inf, -inf, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64min, absl::IDivDuration(-inf, any_dur, &rem));
>+  EXPECT_EQ(-inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(0, absl::IDivDuration(-any_dur, inf, &rem));
>+  EXPECT_EQ(-any_dur, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(kint64min, absl::IDivDuration(inf, -any_dur, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = absl::ZeroDuration();
>+  EXPECT_EQ(0, absl::IDivDuration(any_dur, -inf, &rem));
>+  EXPECT_EQ(any_dur, rem);
>+
>+  // IDivDuration overflow/underflow
>+  rem = any_dur;
>+  EXPECT_EQ(kint64max,
>+            absl::IDivDuration(sec_max, absl::Nanoseconds(1) / 4, &rem));
>+  EXPECT_EQ(sec_max - absl::Nanoseconds(kint64max) / 4, rem);
>+
>+  rem = any_dur;
>+  EXPECT_EQ(kint64max,
>+            absl::IDivDuration(sec_max, absl::Milliseconds(1), &rem));
>+  EXPECT_EQ(sec_max - absl::Milliseconds(kint64max), rem);
>+
>+  rem = any_dur;
>+  EXPECT_EQ(kint64max,
>+            absl::IDivDuration(-sec_max, -absl::Milliseconds(1), &rem));
>+  EXPECT_EQ(-sec_max + absl::Milliseconds(kint64max), rem);
>+
>+  rem = any_dur;
>+  EXPECT_EQ(kint64min,
>+            absl::IDivDuration(-sec_max, absl::Milliseconds(1), &rem));
>+  EXPECT_EQ(-sec_max - absl::Milliseconds(kint64min), rem);
>+
>+  rem = any_dur;
>+  EXPECT_EQ(kint64min,
>+            absl::IDivDuration(sec_max, -absl::Milliseconds(1), &rem));
>+  EXPECT_EQ(sec_max + absl::Milliseconds(kint64min), rem);
>+
>+  //
>+  // operator/(Duration, Duration) is a wrapper for IDivDuration().
>+  //
>+
>+  // IEEE 754 says inf / inf should be nan, but int64_t doesn't have
>+  // nan so we'll return kint64max/kint64min instead.
>+  EXPECT_TRUE(std::isnan(dbl_inf / dbl_inf));
>+  EXPECT_EQ(kint64max, inf / inf);
>+  EXPECT_EQ(kint64max, -inf / -inf);
>+  EXPECT_EQ(kint64min, -inf / inf);
>+  EXPECT_EQ(kint64min, inf / -inf);
>+
>+  EXPECT_TRUE(std::isinf(dbl_inf / 2.0));
>+  EXPECT_EQ(kint64max, inf / any_dur);
>+  EXPECT_EQ(kint64max, -inf / -any_dur);
>+  EXPECT_EQ(kint64min, -inf / any_dur);
>+  EXPECT_EQ(kint64min, inf / -any_dur);
>+
>+  EXPECT_EQ(0.0, 2.0 / dbl_inf);
>+  EXPECT_EQ(0, any_dur / inf);
>+  EXPECT_EQ(0, any_dur / -inf);
>+  EXPECT_EQ(0, -any_dur / inf);
>+  EXPECT_EQ(0, -any_dur / -inf);
>+  EXPECT_EQ(0, absl::ZeroDuration() / inf);
>+
>+  // Division of Duration by a Duration overflow/underflow
>+  EXPECT_EQ(kint64max, sec_max / absl::Milliseconds(1));
>+  EXPECT_EQ(kint64max, -sec_max / -absl::Milliseconds(1));
>+  EXPECT_EQ(kint64min, -sec_max / absl::Milliseconds(1));
>+  EXPECT_EQ(kint64min, sec_max / -absl::Milliseconds(1));
>+}
>+
>+TEST(Duration, InfinityFDiv) {
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, inf));
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -inf));
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, any_dur));
>+  EXPECT_EQ(0.0, absl::FDivDuration(any_dur, inf));
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -any_dur));
>+  EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, -inf));
>+
>+  EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, inf));
>+  EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -inf));
>+  EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, any_dur));
>+  EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, inf));
>+  EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -any_dur));
>+  EXPECT_EQ(0.0, absl::FDivDuration(any_dur, -inf));
>+}
>+
>+TEST(Duration, DivisionByZero) {
>+  const absl::Duration zero = absl::ZeroDuration();
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  const absl::Duration any_dur = absl::Seconds(1);
>+  const double dbl_inf = std::numeric_limits<double>::infinity();
>+  const double dbl_denorm = std::numeric_limits<double>::denorm_min();
>+
>+  // IEEE 754 behavior
>+  double z = 0.0, two = 2.0;
>+  EXPECT_TRUE(std::isinf(two / z));
>+  EXPECT_TRUE(std::isnan(z / z));  // We'll return inf
>+
>+  // Operator/(Duration, double)
>+  EXPECT_EQ(inf, zero / 0.0);
>+  EXPECT_EQ(-inf, zero / -0.0);
>+  EXPECT_EQ(inf, any_dur / 0.0);
>+  EXPECT_EQ(-inf, any_dur / -0.0);
>+  EXPECT_EQ(-inf, -any_dur / 0.0);
>+  EXPECT_EQ(inf, -any_dur / -0.0);
>+
>+  // Tests dividing by a number very close to, but not quite zero.
>+  EXPECT_EQ(zero, zero / dbl_denorm);
>+  EXPECT_EQ(zero, zero / -dbl_denorm);
>+  EXPECT_EQ(inf, any_dur / dbl_denorm);
>+  EXPECT_EQ(-inf, any_dur / -dbl_denorm);
>+  EXPECT_EQ(-inf, -any_dur / dbl_denorm);
>+  EXPECT_EQ(inf, -any_dur / -dbl_denorm);
>+
>+  // IDiv
>+  absl::Duration rem = zero;
>+  EXPECT_EQ(kint64max, absl::IDivDuration(zero, zero, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = zero;
>+  EXPECT_EQ(kint64max, absl::IDivDuration(any_dur, zero, &rem));
>+  EXPECT_EQ(inf, rem);
>+
>+  rem = zero;
>+  EXPECT_EQ(kint64min, absl::IDivDuration(-any_dur, zero, &rem));
>+  EXPECT_EQ(-inf, rem);
>+
>+  // Operator/(Duration, Duration)
>+  EXPECT_EQ(kint64max, zero / zero);
>+  EXPECT_EQ(kint64max, any_dur / zero);
>+  EXPECT_EQ(kint64min, -any_dur / zero);
>+
>+  // FDiv
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(zero, zero));
>+  EXPECT_EQ(dbl_inf, absl::FDivDuration(any_dur, zero));
>+  EXPECT_EQ(-dbl_inf, absl::FDivDuration(-any_dur, zero));
>+}
>+
>+TEST(Duration, Range) {
>+  const absl::Duration range = ApproxYears(100 * 1e9);
>+  const absl::Duration range_future = range;
>+  const absl::Duration range_past = -range;
>+
>+  EXPECT_LT(range_future, absl::InfiniteDuration());
>+  EXPECT_GT(range_past, -absl::InfiniteDuration());
>+
>+  const absl::Duration full_range = range_future - range_past;
>+  EXPECT_GT(full_range, absl::ZeroDuration());
>+  EXPECT_LT(full_range, absl::InfiniteDuration());
>+
>+  const absl::Duration neg_full_range = range_past - range_future;
>+  EXPECT_LT(neg_full_range, absl::ZeroDuration());
>+  EXPECT_GT(neg_full_range, -absl::InfiniteDuration());
>+
>+  EXPECT_LT(neg_full_range, full_range);
>+  EXPECT_EQ(neg_full_range, -full_range);
>+}
>+
>+TEST(Duration, RelationalOperators) {
>+#define TEST_REL_OPS(UNIT)               \
>+  static_assert(UNIT(2) == UNIT(2), ""); \
>+  static_assert(UNIT(1) != UNIT(2), ""); \
>+  static_assert(UNIT(1) < UNIT(2), "");  \
>+  static_assert(UNIT(3) > UNIT(2), "");  \
>+  static_assert(UNIT(1) <= UNIT(2), ""); \
>+  static_assert(UNIT(2) <= UNIT(2), ""); \
>+  static_assert(UNIT(3) >= UNIT(2), ""); \
>+  static_assert(UNIT(2) >= UNIT(2), "");
>+
>+  TEST_REL_OPS(absl::Nanoseconds);
>+  TEST_REL_OPS(absl::Microseconds);
>+  TEST_REL_OPS(absl::Milliseconds);
>+  TEST_REL_OPS(absl::Seconds);
>+  TEST_REL_OPS(absl::Minutes);
>+  TEST_REL_OPS(absl::Hours);
>+
>+#undef TEST_REL_OPS
>+}
>+
>+TEST(Duration, Addition) {
>+#define TEST_ADD_OPS(UNIT)                  \
>+  do {                                      \
>+    EXPECT_EQ(UNIT(2), UNIT(1) + UNIT(1));  \
>+    EXPECT_EQ(UNIT(1), UNIT(2) - UNIT(1));  \
>+    EXPECT_EQ(UNIT(0), UNIT(2) - UNIT(2));  \
>+    EXPECT_EQ(UNIT(-1), UNIT(1) - UNIT(2)); \
>+    EXPECT_EQ(UNIT(-2), UNIT(0) - UNIT(2)); \
>+    EXPECT_EQ(UNIT(-2), UNIT(1) - UNIT(3)); \
>+    absl::Duration a = UNIT(1);             \
>+    a += UNIT(1);                           \
>+    EXPECT_EQ(UNIT(2), a);                  \
>+    a -= UNIT(1);                           \
>+    EXPECT_EQ(UNIT(1), a);                  \
>+  } while (0)
>+
>+  TEST_ADD_OPS(absl::Nanoseconds);
>+  TEST_ADD_OPS(absl::Microseconds);
>+  TEST_ADD_OPS(absl::Milliseconds);
>+  TEST_ADD_OPS(absl::Seconds);
>+  TEST_ADD_OPS(absl::Minutes);
>+  TEST_ADD_OPS(absl::Hours);
>+
>+#undef TEST_ADD_OPS
>+
>+  EXPECT_EQ(absl::Seconds(2), absl::Seconds(3) - 2 * absl::Milliseconds(500));
>+  EXPECT_EQ(absl::Seconds(2) + absl::Milliseconds(500),
>+            absl::Seconds(3) - absl::Milliseconds(500));
>+
>+  EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(998),
>+            absl::Milliseconds(999) + absl::Milliseconds(999));
>+
>+  EXPECT_EQ(absl::Milliseconds(-1),
>+            absl::Milliseconds(998) - absl::Milliseconds(999));
>+
>+  // Tests fractions of a nanoseconds. These are implementation details only.
>+  EXPECT_GT(absl::Nanoseconds(1), absl::Nanoseconds(1) / 2);
>+  EXPECT_EQ(absl::Nanoseconds(1),
>+            absl::Nanoseconds(1) / 2 + absl::Nanoseconds(1) / 2);
>+  EXPECT_GT(absl::Nanoseconds(1) / 4, absl::Nanoseconds(0));
>+  EXPECT_EQ(absl::Nanoseconds(1) / 8, absl::Nanoseconds(0));
>+
>+  // Tests subtraction that will cause wrap around of the rep_lo_ bits.
>+  absl::Duration d_7_5 = absl::Seconds(7) + absl::Milliseconds(500);
>+  absl::Duration d_3_7 = absl::Seconds(3) + absl::Milliseconds(700);
>+  absl::Duration ans_3_8 = absl::Seconds(3) + absl::Milliseconds(800);
>+  EXPECT_EQ(ans_3_8, d_7_5 - d_3_7);
>+
>+  // Subtracting min_duration
>+  absl::Duration min_dur = absl::Seconds(kint64min);
>+  EXPECT_EQ(absl::Seconds(0), min_dur - min_dur);
>+  EXPECT_EQ(absl::Seconds(kint64max), absl::Seconds(-1) - min_dur);
>+}
>+
>+TEST(Duration, Negation) {
>+  // By storing negations of various values in constexpr variables we
>+  // verify that the initializers are constant expressions.
>+  constexpr absl::Duration negated_zero_duration = -absl::ZeroDuration();
>+  EXPECT_EQ(negated_zero_duration, absl::ZeroDuration());
>+
>+  constexpr absl::Duration negated_infinite_duration =
>+      -absl::InfiniteDuration();
>+  EXPECT_NE(negated_infinite_duration, absl::InfiniteDuration());
>+  EXPECT_EQ(-negated_infinite_duration, absl::InfiniteDuration());
>+
>+  // The public APIs to check if a duration is infinite depend on using
>+  // -InfiniteDuration(), but we're trying to test operator- here, so we
>+  // need to use the lower-level internal query IsInfiniteDuration.
>+  EXPECT_TRUE(
>+      absl::time_internal::IsInfiniteDuration(negated_infinite_duration));
>+
>+  // The largest Duration is kint64max seconds and kTicksPerSecond - 1 ticks.
>+  // Using the absl::time_internal::MakeDuration API is the cleanest way to
>+  // construct that Duration.
>+  constexpr absl::Duration max_duration = absl::time_internal::MakeDuration(
>+      kint64max, absl::time_internal::kTicksPerSecond - 1);
>+  constexpr absl::Duration negated_max_duration = -max_duration;
>+  // The largest negatable value is one tick above the minimum representable;
>+  // it's the negation of max_duration.
>+  constexpr absl::Duration nearly_min_duration =
>+      absl::time_internal::MakeDuration(kint64min, int64_t{1});
>+  constexpr absl::Duration negated_nearly_min_duration = -nearly_min_duration;
>+
>+  EXPECT_EQ(negated_max_duration, nearly_min_duration);
>+  EXPECT_EQ(negated_nearly_min_duration, max_duration);
>+  EXPECT_EQ(-(-max_duration), max_duration);
>+
>+  constexpr absl::Duration min_duration =
>+      absl::time_internal::MakeDuration(kint64min);
>+  constexpr absl::Duration negated_min_duration = -min_duration;
>+  EXPECT_EQ(negated_min_duration, absl::InfiniteDuration());
>+}
>+
>+TEST(Duration, AbsoluteValue) {
>+  EXPECT_EQ(absl::ZeroDuration(), AbsDuration(absl::ZeroDuration()));
>+  EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(1)));
>+  EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(-1)));
>+
>+  EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(absl::InfiniteDuration()));
>+  EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(-absl::InfiniteDuration()));
>+
>+  absl::Duration max_dur =
>+      absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4);
>+  EXPECT_EQ(max_dur, AbsDuration(max_dur));
>+
>+  absl::Duration min_dur = absl::Seconds(kint64min);
>+  EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(min_dur));
>+  EXPECT_EQ(max_dur, AbsDuration(min_dur + absl::Nanoseconds(1) / 4));
>+}
>+
>+TEST(Duration, Multiplication) {
>+#define TEST_MUL_OPS(UNIT)                                    \
>+  do {                                                        \
>+    EXPECT_EQ(UNIT(5), UNIT(2) * 2.5);                        \
>+    EXPECT_EQ(UNIT(2), UNIT(5) / 2.5);                        \
>+    EXPECT_EQ(UNIT(-5), UNIT(-2) * 2.5);                      \
>+    EXPECT_EQ(UNIT(-5), -UNIT(2) * 2.5);                      \
>+    EXPECT_EQ(UNIT(-5), UNIT(2) * -2.5);                      \
>+    EXPECT_EQ(UNIT(-2), UNIT(-5) / 2.5);                      \
>+    EXPECT_EQ(UNIT(-2), -UNIT(5) / 2.5);                      \
>+    EXPECT_EQ(UNIT(-2), UNIT(5) / -2.5);                      \
>+    EXPECT_EQ(UNIT(2), UNIT(11) % UNIT(3));                   \
>+    absl::Duration a = UNIT(2);                               \
>+    a *= 2.5;                                                 \
>+    EXPECT_EQ(UNIT(5), a);                                    \
>+    a /= 2.5;                                                 \
>+    EXPECT_EQ(UNIT(2), a);                                    \
>+    a %= UNIT(1);                                             \
>+    EXPECT_EQ(UNIT(0), a);                                    \
>+    absl::Duration big = UNIT(1000000000);                    \
>+    big *= 3;                                                 \
>+    big /= 3;                                                 \
>+    EXPECT_EQ(UNIT(1000000000), big);                         \
>+    EXPECT_EQ(-UNIT(2), -UNIT(2));                            \
>+    EXPECT_EQ(-UNIT(2), UNIT(2) * -1);                        \
>+    EXPECT_EQ(-UNIT(2), -1 * UNIT(2));                        \
>+    EXPECT_EQ(-UNIT(-2), UNIT(2));                            \
>+    EXPECT_EQ(2, UNIT(2) / UNIT(1));                          \
>+    absl::Duration rem;                                       \
>+    EXPECT_EQ(2, absl::IDivDuration(UNIT(2), UNIT(1), &rem)); \
>+    EXPECT_EQ(2.0, absl::FDivDuration(UNIT(2), UNIT(1)));     \
>+  } while (0)
>+
>+  TEST_MUL_OPS(absl::Nanoseconds);
>+  TEST_MUL_OPS(absl::Microseconds);
>+  TEST_MUL_OPS(absl::Milliseconds);
>+  TEST_MUL_OPS(absl::Seconds);
>+  TEST_MUL_OPS(absl::Minutes);
>+  TEST_MUL_OPS(absl::Hours);
>+
>+#undef TEST_MUL_OPS
>+
>+  // Ensures that multiplication and division by 1 with a maxed-out durations
>+  // doesn't lose precision.
>+  absl::Duration max_dur =
>+      absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4);
>+  absl::Duration min_dur = absl::Seconds(kint64min);
>+  EXPECT_EQ(max_dur, max_dur * 1);
>+  EXPECT_EQ(max_dur, max_dur / 1);
>+  EXPECT_EQ(min_dur, min_dur * 1);
>+  EXPECT_EQ(min_dur, min_dur / 1);
>+
>+  // Tests division on a Duration with a large number of significant digits.
>+  // Tests when the digits span hi and lo as well as only in hi.
>+  absl::Duration sigfigs = absl::Seconds(2000000000) + absl::Nanoseconds(3);
>+  EXPECT_EQ(absl::Seconds(666666666) + absl::Nanoseconds(666666667) +
>+                absl::Nanoseconds(1) / 2,
>+            sigfigs / 3);
>+  sigfigs = absl::Seconds(7000000000LL);
>+  EXPECT_EQ(absl::Seconds(2333333333) + absl::Nanoseconds(333333333) +
>+                absl::Nanoseconds(1) / 4,
>+            sigfigs / 3);
>+
>+  EXPECT_EQ(absl::Seconds(7) + absl::Milliseconds(500), absl::Seconds(3) * 2.5);
>+  EXPECT_EQ(absl::Seconds(8) * -1 + absl::Milliseconds(300),
>+            (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5);
>+  EXPECT_EQ(-absl::Seconds(8) + absl::Milliseconds(300),
>+            (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5);
>+  EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(875),
>+            (absl::Seconds(7) + absl::Milliseconds(500)) / 4);
>+  EXPECT_EQ(absl::Seconds(30),
>+            (absl::Seconds(7) + absl::Milliseconds(500)) / 0.25);
>+  EXPECT_EQ(absl::Seconds(3),
>+            (absl::Seconds(7) + absl::Milliseconds(500)) / 2.5);
>+
>+  // Tests division remainder.
>+  EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(7) % absl::Nanoseconds(1));
>+  EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(0) % absl::Nanoseconds(10));
>+  EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(7) % absl::Nanoseconds(5));
>+  EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(2) % absl::Nanoseconds(5));
>+
>+  EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(10) % absl::Nanoseconds(3));
>+  EXPECT_EQ(absl::Nanoseconds(1),
>+            absl::Nanoseconds(10) % absl::Nanoseconds(-3));
>+  EXPECT_EQ(absl::Nanoseconds(-1),
>+            absl::Nanoseconds(-10) % absl::Nanoseconds(3));
>+  EXPECT_EQ(absl::Nanoseconds(-1),
>+            absl::Nanoseconds(-10) % absl::Nanoseconds(-3));
>+
>+  EXPECT_EQ(absl::Milliseconds(100),
>+            absl::Seconds(1) % absl::Milliseconds(300));
>+  EXPECT_EQ(
>+      absl::Milliseconds(300),
>+      (absl::Seconds(3) + absl::Milliseconds(800)) % absl::Milliseconds(500));
>+
>+  EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(1) % absl::Seconds(1));
>+  EXPECT_EQ(absl::Nanoseconds(-1), absl::Nanoseconds(-1) % absl::Seconds(1));
>+  EXPECT_EQ(0, absl::Nanoseconds(-1) / absl::Seconds(1));  // Actual -1e-9
>+
>+  // Tests identity a = (a/b)*b + a%b
>+#define TEST_MOD_IDENTITY(a, b) \
>+  EXPECT_EQ((a), ((a) / (b))*(b) + ((a)%(b)))
>+
>+  TEST_MOD_IDENTITY(absl::Seconds(0), absl::Seconds(2));
>+  TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(1));
>+  TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(2));
>+  TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(1));
>+
>+  TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(1));
>+  TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(-1));
>+  TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(-1));
>+
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(0), absl::Nanoseconds(2));
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(1));
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(2));
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(1));
>+
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(1));
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(-1));
>+  TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(-1));
>+
>+  // Mixed seconds + subseconds
>+  absl::Duration mixed_a = absl::Seconds(1) + absl::Nanoseconds(2);
>+  absl::Duration mixed_b = absl::Seconds(1) + absl::Nanoseconds(3);
>+
>+  TEST_MOD_IDENTITY(absl::Seconds(0), mixed_a);
>+  TEST_MOD_IDENTITY(mixed_a, mixed_a);
>+  TEST_MOD_IDENTITY(mixed_a, mixed_b);
>+  TEST_MOD_IDENTITY(mixed_b, mixed_a);
>+
>+  TEST_MOD_IDENTITY(-mixed_a, mixed_b);
>+  TEST_MOD_IDENTITY(mixed_a, -mixed_b);
>+  TEST_MOD_IDENTITY(-mixed_a, -mixed_b);
>+
>+#undef TEST_MOD_IDENTITY
>+}
>+
>+TEST(Duration, Truncation) {
>+  const absl::Duration d = absl::Nanoseconds(1234567890);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  for (int unit_sign : {1, -1}) {  // sign shouldn't matter
>+    EXPECT_EQ(absl::Nanoseconds(1234567890),
>+              Trunc(d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(1234567),
>+              Trunc(d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(1234),
>+              Trunc(d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(1), Trunc(d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(inf, Trunc(inf, unit_sign * absl::Seconds(1)));
>+
>+    EXPECT_EQ(absl::Nanoseconds(-1234567890),
>+              Trunc(-d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(-1234567),
>+              Trunc(-d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(-1234),
>+              Trunc(-d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(-1), Trunc(-d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(-inf, Trunc(-inf, unit_sign * absl::Seconds(1)));
>+  }
>+}
>+
>+TEST(Duration, Flooring) {
>+  const absl::Duration d = absl::Nanoseconds(1234567890);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  for (int unit_sign : {1, -1}) {  // sign shouldn't matter
>+    EXPECT_EQ(absl::Nanoseconds(1234567890),
>+              absl::Floor(d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(1234567),
>+              absl::Floor(d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(1234),
>+              absl::Floor(d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(1), absl::Floor(d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(inf, absl::Floor(inf, unit_sign * absl::Seconds(1)));
>+
>+    EXPECT_EQ(absl::Nanoseconds(-1234567890),
>+              absl::Floor(-d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(-1234568),
>+              absl::Floor(-d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(-1235),
>+              absl::Floor(-d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(-2), absl::Floor(-d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(-inf, absl::Floor(-inf, unit_sign * absl::Seconds(1)));
>+  }
>+}
>+
>+TEST(Duration, Ceiling) {
>+  const absl::Duration d = absl::Nanoseconds(1234567890);
>+  const absl::Duration inf = absl::InfiniteDuration();
>+  for (int unit_sign : {1, -1}) {  // // sign shouldn't matter
>+    EXPECT_EQ(absl::Nanoseconds(1234567890),
>+              absl::Ceil(d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(1234568),
>+              absl::Ceil(d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(1235),
>+              absl::Ceil(d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(2), absl::Ceil(d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(inf, absl::Ceil(inf, unit_sign * absl::Seconds(1)));
>+
>+    EXPECT_EQ(absl::Nanoseconds(-1234567890),
>+              absl::Ceil(-d, unit_sign * absl::Nanoseconds(1)));
>+    EXPECT_EQ(absl::Microseconds(-1234567),
>+              absl::Ceil(-d, unit_sign * absl::Microseconds(1)));
>+    EXPECT_EQ(absl::Milliseconds(-1234),
>+              absl::Ceil(-d, unit_sign * absl::Milliseconds(1)));
>+    EXPECT_EQ(absl::Seconds(-1), absl::Ceil(-d, unit_sign * absl::Seconds(1)));
>+    EXPECT_EQ(-inf, absl::Ceil(-inf, unit_sign * absl::Seconds(1)));
>+  }
>+}
>+
>+TEST(Duration, RoundTripUnits) {
>+  const int kRange = 100000;
>+
>+#define ROUND_TRIP_UNIT(U, LOW, HIGH)          \
>+  do {                                         \
>+    for (int64_t i = LOW; i < HIGH; ++i) {     \
>+      absl::Duration d = absl::U(i);           \
>+      if (d == absl::InfiniteDuration())       \
>+        EXPECT_EQ(kint64max, d / absl::U(1));  \
>+      else if (d == -absl::InfiniteDuration()) \
>+        EXPECT_EQ(kint64min, d / absl::U(1));  \
>+      else                                     \
>+        EXPECT_EQ(i, absl::U(i) / absl::U(1)); \
>+    }                                          \
>+  } while (0)
>+
>+  ROUND_TRIP_UNIT(Nanoseconds, kint64min, kint64min + kRange);
>+  ROUND_TRIP_UNIT(Nanoseconds, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Nanoseconds, kint64max - kRange, kint64max);
>+
>+  ROUND_TRIP_UNIT(Microseconds, kint64min, kint64min + kRange);
>+  ROUND_TRIP_UNIT(Microseconds, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Microseconds, kint64max - kRange, kint64max);
>+
>+  ROUND_TRIP_UNIT(Milliseconds, kint64min, kint64min + kRange);
>+  ROUND_TRIP_UNIT(Milliseconds, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Milliseconds, kint64max - kRange, kint64max);
>+
>+  ROUND_TRIP_UNIT(Seconds, kint64min, kint64min + kRange);
>+  ROUND_TRIP_UNIT(Seconds, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Seconds, kint64max - kRange, kint64max);
>+
>+  ROUND_TRIP_UNIT(Minutes, kint64min / 60, kint64min / 60 + kRange);
>+  ROUND_TRIP_UNIT(Minutes, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Minutes, kint64max / 60 - kRange, kint64max / 60);
>+
>+  ROUND_TRIP_UNIT(Hours, kint64min / 3600, kint64min / 3600 + kRange);
>+  ROUND_TRIP_UNIT(Hours, -kRange, kRange);
>+  ROUND_TRIP_UNIT(Hours, kint64max / 3600 - kRange, kint64max / 3600);
>+
>+#undef ROUND_TRIP_UNIT
>+}
>+
>+TEST(Duration, TruncConversions) {
>+  // Tests ToTimespec()/DurationFromTimespec()
>+  const struct {
>+    absl::Duration d;
>+    timespec ts;
>+  } to_ts[] = {
>+      {absl::Seconds(1) + absl::Nanoseconds(1), {1, 1}},
>+      {absl::Seconds(1) + absl::Nanoseconds(1) / 2, {1, 0}},
>+      {absl::Seconds(1) + absl::Nanoseconds(0), {1, 0}},
>+      {absl::Seconds(0) + absl::Nanoseconds(0), {0, 0}},
>+      {absl::Seconds(0) - absl::Nanoseconds(1) / 2, {0, 0}},
>+      {absl::Seconds(0) - absl::Nanoseconds(1), {-1, 999999999}},
>+      {absl::Seconds(-1) + absl::Nanoseconds(1), {-1, 1}},
>+      {absl::Seconds(-1) + absl::Nanoseconds(1) / 2, {-1, 1}},
>+      {absl::Seconds(-1) + absl::Nanoseconds(0), {-1, 0}},
>+      {absl::Seconds(-1) - absl::Nanoseconds(1) / 2, {-1, 0}},
>+  };
>+  for (const auto& test : to_ts) {
>+    EXPECT_THAT(absl::ToTimespec(test.d), TimespecMatcher(test.ts));
>+  }
>+  const struct {
>+    timespec ts;
>+    absl::Duration d;
>+  } from_ts[] = {
>+      {{1, 1}, absl::Seconds(1) + absl::Nanoseconds(1)},
>+      {{1, 0}, absl::Seconds(1) + absl::Nanoseconds(0)},
>+      {{0, 0}, absl::Seconds(0) + absl::Nanoseconds(0)},
>+      {{0, -1}, absl::Seconds(0) - absl::Nanoseconds(1)},
>+      {{-1, 999999999}, absl::Seconds(0) - absl::Nanoseconds(1)},
>+      {{-1, 1}, absl::Seconds(-1) + absl::Nanoseconds(1)},
>+      {{-1, 0}, absl::Seconds(-1) + absl::Nanoseconds(0)},
>+      {{-1, -1}, absl::Seconds(-1) - absl::Nanoseconds(1)},
>+      {{-2, 999999999}, absl::Seconds(-1) - absl::Nanoseconds(1)},
>+  };
>+  for (const auto& test : from_ts) {
>+    EXPECT_EQ(test.d, absl::DurationFromTimespec(test.ts));
>+  }
>+
>+  // Tests ToTimeval()/DurationFromTimeval() (same as timespec above)
>+  const struct {
>+    absl::Duration d;
>+    timeval tv;
>+  } to_tv[] = {
>+      {absl::Seconds(1) + absl::Microseconds(1), {1, 1}},
>+      {absl::Seconds(1) + absl::Microseconds(1) / 2, {1, 0}},
>+      {absl::Seconds(1) + absl::Microseconds(0), {1, 0}},
>+      {absl::Seconds(0) + absl::Microseconds(0), {0, 0}},
>+      {absl::Seconds(0) - absl::Microseconds(1) / 2, {0, 0}},
>+      {absl::Seconds(0) - absl::Microseconds(1), {-1, 999999}},
>+      {absl::Seconds(-1) + absl::Microseconds(1), {-1, 1}},
>+      {absl::Seconds(-1) + absl::Microseconds(1) / 2, {-1, 1}},
>+      {absl::Seconds(-1) + absl::Microseconds(0), {-1, 0}},
>+      {absl::Seconds(-1) - absl::Microseconds(1) / 2, {-1, 0}},
>+  };
>+  for (const auto& test : to_tv) {
>+    EXPECT_THAT(absl::ToTimeval(test.d), TimevalMatcher(test.tv));
>+  }
>+  const struct {
>+    timeval tv;
>+    absl::Duration d;
>+  } from_tv[] = {
>+      {{1, 1}, absl::Seconds(1) + absl::Microseconds(1)},
>+      {{1, 0}, absl::Seconds(1) + absl::Microseconds(0)},
>+      {{0, 0}, absl::Seconds(0) + absl::Microseconds(0)},
>+      {{0, -1}, absl::Seconds(0) - absl::Microseconds(1)},
>+      {{-1, 999999}, absl::Seconds(0) - absl::Microseconds(1)},
>+      {{-1, 1}, absl::Seconds(-1) + absl::Microseconds(1)},
>+      {{-1, 0}, absl::Seconds(-1) + absl::Microseconds(0)},
>+      {{-1, -1}, absl::Seconds(-1) - absl::Microseconds(1)},
>+      {{-2, 999999}, absl::Seconds(-1) - absl::Microseconds(1)},
>+  };
>+  for (const auto& test : from_tv) {
>+    EXPECT_EQ(test.d, absl::DurationFromTimeval(test.tv));
>+  }
>+}
>+
>+TEST(Duration, SmallConversions) {
>+  // Special tests for conversions of small durations.
>+
>+  EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0));
>+  // TODO(bww): Is the next one OK?
>+  EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0.124999999e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.125e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.250e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.375e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.500e-9));
>+  EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.625e-9));
>+  EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.750e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(0.875e-9));
>+  EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(1.000e-9));
>+
>+  EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(-0.124999999e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.125e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.250e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.375e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.500e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.625e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.750e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-0.875e-9));
>+  EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-1.000e-9));
>+
>+  timespec ts;
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = 0;
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(0)), TimespecMatcher(ts));
>+  // TODO(bww): Are the next three OK?
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(1) / 4), TimespecMatcher(ts));
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(2) / 4), TimespecMatcher(ts));
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(3) / 4), TimespecMatcher(ts));
>+  ts.tv_nsec = 1;
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(4) / 4), TimespecMatcher(ts));
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(5) / 4), TimespecMatcher(ts));
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(6) / 4), TimespecMatcher(ts));
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(7) / 4), TimespecMatcher(ts));
>+  ts.tv_nsec = 2;
>+  EXPECT_THAT(ToTimespec(absl::Nanoseconds(8) / 4), TimespecMatcher(ts));
>+
>+  timeval tv;
>+  tv.tv_sec = 0;
>+  tv.tv_usec = 0;
>+  EXPECT_THAT(ToTimeval(absl::Nanoseconds(0)), TimevalMatcher(tv));
>+  // TODO(bww): Is the next one OK?
>+  EXPECT_THAT(ToTimeval(absl::Nanoseconds(999)), TimevalMatcher(tv));
>+  tv.tv_usec = 1;
>+  EXPECT_THAT(ToTimeval(absl::Nanoseconds(1000)), TimevalMatcher(tv));
>+  EXPECT_THAT(ToTimeval(absl::Nanoseconds(1999)), TimevalMatcher(tv));
>+  tv.tv_usec = 2;
>+  EXPECT_THAT(ToTimeval(absl::Nanoseconds(2000)), TimevalMatcher(tv));
>+}
>+
>+void VerifySameAsMul(double time_as_seconds, int* const misses) {
>+  auto direct_seconds = absl::Seconds(time_as_seconds);
>+  auto mul_by_one_second = time_as_seconds * absl::Seconds(1);
>+  if (direct_seconds != mul_by_one_second) {
>+    if (*misses > 10) return;
>+    ASSERT_LE(++(*misses), 10) << "Too many errors, not reporting more.";
>+    EXPECT_EQ(direct_seconds, mul_by_one_second)
>+        << "given double time_as_seconds = " << std::setprecision(17)
>+        << time_as_seconds;
>+  }
>+}
>+
>+// For a variety of interesting durations, we find the exact point
>+// where one double converts to that duration, and the very next double
>+// converts to the next duration.  For both of those points, verify that
>+// Seconds(point) returns the same duration as point * Seconds(1.0)
>+TEST(Duration, ToDoubleSecondsCheckEdgeCases) {
>+  constexpr uint32_t kTicksPerSecond = absl::time_internal::kTicksPerSecond;
>+  constexpr auto duration_tick = absl::time_internal::MakeDuration(0, 1u);
>+  int misses = 0;
>+  for (int64_t seconds = 0; seconds < 99; ++seconds) {
>+    uint32_t tick_vals[] = {0, +999, +999999, +999999999, kTicksPerSecond - 1,
>+                            0, 1000, 1000000, 1000000000, kTicksPerSecond,
>+                            1, 1001, 1000001, 1000000001, kTicksPerSecond + 1,
>+                            2, 1002, 1000002, 1000000002, kTicksPerSecond + 2,
>+                            3, 1003, 1000003, 1000000003, kTicksPerSecond + 3,
>+                            4, 1004, 1000004, 1000000004, kTicksPerSecond + 4,
>+                            5, 6,    7,       8,          9};
>+    for (uint32_t ticks : tick_vals) {
>+      absl::Duration s_plus_t = absl::Seconds(seconds) + ticks * duration_tick;
>+      for (absl::Duration d : {s_plus_t, -s_plus_t}) {
>+        absl::Duration after_d = d + duration_tick;
>+        EXPECT_NE(d, after_d);
>+        EXPECT_EQ(after_d - d, duration_tick);
>+
>+        double low_edge = ToDoubleSeconds(d);
>+        EXPECT_EQ(d, absl::Seconds(low_edge));
>+
>+        double high_edge = ToDoubleSeconds(after_d);
>+        EXPECT_EQ(after_d, absl::Seconds(high_edge));
>+
>+        for (;;) {
>+          double midpoint = low_edge + (high_edge - low_edge) / 2;
>+          if (midpoint == low_edge || midpoint == high_edge) break;
>+          absl::Duration mid_duration = absl::Seconds(midpoint);
>+          if (mid_duration == d) {
>+            low_edge = midpoint;
>+          } else {
>+            EXPECT_EQ(mid_duration, after_d);
>+            high_edge = midpoint;
>+          }
>+        }
>+        // Now low_edge is the highest double that converts to Duration d,
>+        // and high_edge is the lowest double that converts to Duration after_d.
>+        VerifySameAsMul(low_edge, &misses);
>+        VerifySameAsMul(high_edge, &misses);
>+      }
>+    }
>+  }
>+}
>+
>+TEST(Duration, ToDoubleSecondsCheckRandom) {
>+  std::random_device rd;
>+  std::seed_seq seed({rd(), rd(), rd(), rd(), rd(), rd(), rd(), rd()});
>+  std::mt19937_64 gen(seed);
>+  // We want doubles distributed from 1/8ns up to 2^63, where
>+  // as many values are tested from 1ns to 2ns as from 1sec to 2sec,
>+  // so even distribute along a log-scale of those values, and
>+  // exponentiate before using them.  (9.223377e+18 is just slightly
>+  // out of bounds for absl::Duration.)
>+  std::uniform_real_distribution<double> uniform(std::log(0.125e-9),
>+                                                 std::log(9.223377e+18));
>+  int misses = 0;
>+  for (int i = 0; i < 1000000; ++i) {
>+    double d = std::exp(uniform(gen));
>+    VerifySameAsMul(d, &misses);
>+    VerifySameAsMul(-d, &misses);
>+  }
>+}
>+
>+TEST(Duration, ConversionSaturation) {
>+  absl::Duration d;
>+
>+  const auto max_timeval_sec =
>+      std::numeric_limits<decltype(timeval::tv_sec)>::max();
>+  const auto min_timeval_sec =
>+      std::numeric_limits<decltype(timeval::tv_sec)>::min();
>+  timeval tv;
>+  tv.tv_sec = max_timeval_sec;
>+  tv.tv_usec = 999998;
>+  d = absl::DurationFromTimeval(tv);
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999998, tv.tv_usec);
>+  d += absl::Microseconds(1);
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999999, tv.tv_usec);
>+  d += absl::Microseconds(1);  // no effect
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999999, tv.tv_usec);
>+
>+  tv.tv_sec = min_timeval_sec;
>+  tv.tv_usec = 1;
>+  d = absl::DurationFromTimeval(tv);
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(1, tv.tv_usec);
>+  d -= absl::Microseconds(1);
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(0, tv.tv_usec);
>+  d -= absl::Microseconds(1);  // no effect
>+  tv = ToTimeval(d);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(0, tv.tv_usec);
>+
>+  const auto max_timespec_sec =
>+      std::numeric_limits<decltype(timespec::tv_sec)>::max();
>+  const auto min_timespec_sec =
>+      std::numeric_limits<decltype(timespec::tv_sec)>::min();
>+  timespec ts;
>+  ts.tv_sec = max_timespec_sec;
>+  ts.tv_nsec = 999999998;
>+  d = absl::DurationFromTimespec(ts);
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999998, ts.tv_nsec);
>+  d += absl::Nanoseconds(1);
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999999, ts.tv_nsec);
>+  d += absl::Nanoseconds(1);  // no effect
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999999, ts.tv_nsec);
>+
>+  ts.tv_sec = min_timespec_sec;
>+  ts.tv_nsec = 1;
>+  d = absl::DurationFromTimespec(ts);
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(1, ts.tv_nsec);
>+  d -= absl::Nanoseconds(1);
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(0, ts.tv_nsec);
>+  d -= absl::Nanoseconds(1);  // no effect
>+  ts = absl::ToTimespec(d);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(0, ts.tv_nsec);
>+}
>+
>+TEST(Duration, FormatDuration) {
>+  // Example from Go's docs.
>+  EXPECT_EQ("72h3m0.5s",
>+            absl::FormatDuration(absl::Hours(72) + absl::Minutes(3) +
>+                                 absl::Milliseconds(500)));
>+  // Go's largest time: 2540400h10m10.000000000s
>+  EXPECT_EQ("2540400h10m10s",
>+            absl::FormatDuration(absl::Hours(2540400) + absl::Minutes(10) +
>+                                 absl::Seconds(10)));
>+
>+  EXPECT_EQ("0", absl::FormatDuration(absl::ZeroDuration()));
>+  EXPECT_EQ("0", absl::FormatDuration(absl::Seconds(0)));
>+  EXPECT_EQ("0", absl::FormatDuration(absl::Nanoseconds(0)));
>+
>+  EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1)));
>+  EXPECT_EQ("1us", absl::FormatDuration(absl::Microseconds(1)));
>+  EXPECT_EQ("1ms", absl::FormatDuration(absl::Milliseconds(1)));
>+  EXPECT_EQ("1s", absl::FormatDuration(absl::Seconds(1)));
>+  EXPECT_EQ("1m", absl::FormatDuration(absl::Minutes(1)));
>+  EXPECT_EQ("1h", absl::FormatDuration(absl::Hours(1)));
>+
>+  EXPECT_EQ("1h1m", absl::FormatDuration(absl::Hours(1) + absl::Minutes(1)));
>+  EXPECT_EQ("1h1s", absl::FormatDuration(absl::Hours(1) + absl::Seconds(1)));
>+  EXPECT_EQ("1m1s", absl::FormatDuration(absl::Minutes(1) + absl::Seconds(1)));
>+
>+  EXPECT_EQ("1h0.25s",
>+            absl::FormatDuration(absl::Hours(1) + absl::Milliseconds(250)));
>+  EXPECT_EQ("1m0.25s",
>+            absl::FormatDuration(absl::Minutes(1) + absl::Milliseconds(250)));
>+  EXPECT_EQ("1h1m0.25s",
>+            absl::FormatDuration(absl::Hours(1) + absl::Minutes(1) +
>+                                 absl::Milliseconds(250)));
>+  EXPECT_EQ("1h0.0005s",
>+            absl::FormatDuration(absl::Hours(1) + absl::Microseconds(500)));
>+  EXPECT_EQ("1h0.0000005s",
>+            absl::FormatDuration(absl::Hours(1) + absl::Nanoseconds(500)));
>+
>+  // Subsecond special case.
>+  EXPECT_EQ("1.5ns", absl::FormatDuration(absl::Nanoseconds(1) +
>+                                          absl::Nanoseconds(1) / 2));
>+  EXPECT_EQ("1.25ns", absl::FormatDuration(absl::Nanoseconds(1) +
>+                                           absl::Nanoseconds(1) / 4));
>+  EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1) +
>+                                        absl::Nanoseconds(1) / 9));
>+  EXPECT_EQ("1.2us", absl::FormatDuration(absl::Microseconds(1) +
>+                                          absl::Nanoseconds(200)));
>+  EXPECT_EQ("1.2ms", absl::FormatDuration(absl::Milliseconds(1) +
>+                                          absl::Microseconds(200)));
>+  EXPECT_EQ("1.0002ms", absl::FormatDuration(absl::Milliseconds(1) +
>+                                             absl::Nanoseconds(200)));
>+  EXPECT_EQ("1.00001ms", absl::FormatDuration(absl::Milliseconds(1) +
>+                                              absl::Nanoseconds(10)));
>+  EXPECT_EQ("1.000001ms",
>+            absl::FormatDuration(absl::Milliseconds(1) + absl::Nanoseconds(1)));
>+
>+  // Negative durations.
>+  EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1)));
>+  EXPECT_EQ("-1us", absl::FormatDuration(absl::Microseconds(-1)));
>+  EXPECT_EQ("-1ms", absl::FormatDuration(absl::Milliseconds(-1)));
>+  EXPECT_EQ("-1s", absl::FormatDuration(absl::Seconds(-1)));
>+  EXPECT_EQ("-1m", absl::FormatDuration(absl::Minutes(-1)));
>+  EXPECT_EQ("-1h", absl::FormatDuration(absl::Hours(-1)));
>+
>+  EXPECT_EQ("-1h1m",
>+            absl::FormatDuration(-(absl::Hours(1) + absl::Minutes(1))));
>+  EXPECT_EQ("-1h1s",
>+            absl::FormatDuration(-(absl::Hours(1) + absl::Seconds(1))));
>+  EXPECT_EQ("-1m1s",
>+            absl::FormatDuration(-(absl::Minutes(1) + absl::Seconds(1))));
>+
>+  EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1)));
>+  EXPECT_EQ("-1.2us", absl::FormatDuration(
>+                          -(absl::Microseconds(1) + absl::Nanoseconds(200))));
>+  EXPECT_EQ("-1.2ms", absl::FormatDuration(
>+                          -(absl::Milliseconds(1) + absl::Microseconds(200))));
>+  EXPECT_EQ("-1.0002ms", absl::FormatDuration(-(absl::Milliseconds(1) +
>+                                                absl::Nanoseconds(200))));
>+  EXPECT_EQ("-1.00001ms", absl::FormatDuration(-(absl::Milliseconds(1) +
>+                                                 absl::Nanoseconds(10))));
>+  EXPECT_EQ("-1.000001ms", absl::FormatDuration(-(absl::Milliseconds(1) +
>+                                                  absl::Nanoseconds(1))));
>+
>+  //
>+  // Interesting corner cases.
>+  //
>+
>+  const absl::Duration qns = absl::Nanoseconds(1) / 4;
>+  const absl::Duration max_dur =
>+      absl::Seconds(kint64max) + (absl::Seconds(1) - qns);
>+  const absl::Duration min_dur = absl::Seconds(kint64min);
>+
>+  EXPECT_EQ("0.25ns", absl::FormatDuration(qns));
>+  EXPECT_EQ("-0.25ns", absl::FormatDuration(-qns));
>+  EXPECT_EQ("2562047788015215h30m7.99999999975s",
>+            absl::FormatDuration(max_dur));
>+  EXPECT_EQ("-2562047788015215h30m8s", absl::FormatDuration(min_dur));
>+
>+  // Tests printing full precision from units that print using FDivDuration
>+  EXPECT_EQ("55.00000000025s", absl::FormatDuration(absl::Seconds(55) + qns));
>+  EXPECT_EQ("55.00000025ms",
>+            absl::FormatDuration(absl::Milliseconds(55) + qns));
>+  EXPECT_EQ("55.00025us", absl::FormatDuration(absl::Microseconds(55) + qns));
>+  EXPECT_EQ("55.25ns", absl::FormatDuration(absl::Nanoseconds(55) + qns));
>+
>+  // Formatting infinity
>+  EXPECT_EQ("inf", absl::FormatDuration(absl::InfiniteDuration()));
>+  EXPECT_EQ("-inf", absl::FormatDuration(-absl::InfiniteDuration()));
>+
>+  // Formatting approximately +/- 100 billion years
>+  const absl::Duration huge_range = ApproxYears(100000000000);
>+  EXPECT_EQ("876000000000000h", absl::FormatDuration(huge_range));
>+  EXPECT_EQ("-876000000000000h", absl::FormatDuration(-huge_range));
>+
>+  EXPECT_EQ("876000000000000h0.999999999s",
>+            absl::FormatDuration(huge_range +
>+                                 (absl::Seconds(1) - absl::Nanoseconds(1))));
>+  EXPECT_EQ("876000000000000h0.9999999995s",
>+            absl::FormatDuration(
>+                huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 2)));
>+  EXPECT_EQ("876000000000000h0.99999999975s",
>+            absl::FormatDuration(
>+                huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 4)));
>+
>+  EXPECT_EQ("-876000000000000h0.999999999s",
>+            absl::FormatDuration(-huge_range -
>+                                 (absl::Seconds(1) - absl::Nanoseconds(1))));
>+  EXPECT_EQ("-876000000000000h0.9999999995s",
>+            absl::FormatDuration(
>+                -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 2)));
>+  EXPECT_EQ("-876000000000000h0.99999999975s",
>+            absl::FormatDuration(
>+                -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 4)));
>+}
>+
>+TEST(Duration, ParseDuration) {
>+  absl::Duration d;
>+
>+  // No specified unit. Should only work for zero and infinity.
>+  EXPECT_TRUE(absl::ParseDuration("0", &d));
>+  EXPECT_EQ(absl::ZeroDuration(), d);
>+  EXPECT_TRUE(absl::ParseDuration("+0", &d));
>+  EXPECT_EQ(absl::ZeroDuration(), d);
>+  EXPECT_TRUE(absl::ParseDuration("-0", &d));
>+  EXPECT_EQ(absl::ZeroDuration(), d);
>+
>+  EXPECT_TRUE(absl::ParseDuration("inf", &d));
>+  EXPECT_EQ(absl::InfiniteDuration(), d);
>+  EXPECT_TRUE(absl::ParseDuration("+inf", &d));
>+  EXPECT_EQ(absl::InfiniteDuration(), d);
>+  EXPECT_TRUE(absl::ParseDuration("-inf", &d));
>+  EXPECT_EQ(-absl::InfiniteDuration(), d);
>+  EXPECT_FALSE(absl::ParseDuration("infBlah", &d));
>+
>+  // Illegal input forms.
>+  EXPECT_FALSE(absl::ParseDuration("", &d));
>+  EXPECT_FALSE(absl::ParseDuration("0.0", &d));
>+  EXPECT_FALSE(absl::ParseDuration(".0", &d));
>+  EXPECT_FALSE(absl::ParseDuration(".", &d));
>+  EXPECT_FALSE(absl::ParseDuration("01", &d));
>+  EXPECT_FALSE(absl::ParseDuration("1", &d));
>+  EXPECT_FALSE(absl::ParseDuration("-1", &d));
>+  EXPECT_FALSE(absl::ParseDuration("2", &d));
>+  EXPECT_FALSE(absl::ParseDuration("2 s", &d));
>+  EXPECT_FALSE(absl::ParseDuration(".s", &d));
>+  EXPECT_FALSE(absl::ParseDuration("-.s", &d));
>+  EXPECT_FALSE(absl::ParseDuration("s", &d));
>+  EXPECT_FALSE(absl::ParseDuration(" 2s", &d));
>+  EXPECT_FALSE(absl::ParseDuration("2s ", &d));
>+  EXPECT_FALSE(absl::ParseDuration(" 2s ", &d));
>+  EXPECT_FALSE(absl::ParseDuration("2mt", &d));
>+  EXPECT_FALSE(absl::ParseDuration("1e3s", &d));
>+
>+  // One unit type.
>+  EXPECT_TRUE(absl::ParseDuration("1ns", &d));
>+  EXPECT_EQ(absl::Nanoseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1us", &d));
>+  EXPECT_EQ(absl::Microseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1ms", &d));
>+  EXPECT_EQ(absl::Milliseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1s", &d));
>+  EXPECT_EQ(absl::Seconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("2m", &d));
>+  EXPECT_EQ(absl::Minutes(2), d);
>+  EXPECT_TRUE(absl::ParseDuration("2h", &d));
>+  EXPECT_EQ(absl::Hours(2), d);
>+
>+  // Huge counts of a unit.
>+  EXPECT_TRUE(absl::ParseDuration("9223372036854775807us", &d));
>+  EXPECT_EQ(absl::Microseconds(9223372036854775807), d);
>+  EXPECT_TRUE(absl::ParseDuration("-9223372036854775807us", &d));
>+  EXPECT_EQ(absl::Microseconds(-9223372036854775807), d);
>+
>+  // Multiple units.
>+  EXPECT_TRUE(absl::ParseDuration("2h3m4s", &d));
>+  EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4), d);
>+  EXPECT_TRUE(absl::ParseDuration("3m4s5us", &d));
>+  EXPECT_EQ(absl::Minutes(3) + absl::Seconds(4) + absl::Microseconds(5), d);
>+  EXPECT_TRUE(absl::ParseDuration("2h3m4s5ms6us7ns", &d));
>+  EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4) +
>+                absl::Milliseconds(5) + absl::Microseconds(6) +
>+                absl::Nanoseconds(7),
>+            d);
>+
>+  // Multiple units out of order.
>+  EXPECT_TRUE(absl::ParseDuration("2us3m4s5h", &d));
>+  EXPECT_EQ(absl::Hours(5) + absl::Minutes(3) + absl::Seconds(4) +
>+                absl::Microseconds(2),
>+            d);
>+
>+  // Fractional values of units.
>+  EXPECT_TRUE(absl::ParseDuration("1.5ns", &d));
>+  EXPECT_EQ(1.5 * absl::Nanoseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1.5us", &d));
>+  EXPECT_EQ(1.5 * absl::Microseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1.5ms", &d));
>+  EXPECT_EQ(1.5 * absl::Milliseconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1.5s", &d));
>+  EXPECT_EQ(1.5 * absl::Seconds(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1.5m", &d));
>+  EXPECT_EQ(1.5 * absl::Minutes(1), d);
>+  EXPECT_TRUE(absl::ParseDuration("1.5h", &d));
>+  EXPECT_EQ(1.5 * absl::Hours(1), d);
>+
>+  // Huge fractional counts of a unit.
>+  EXPECT_TRUE(absl::ParseDuration("0.4294967295s", &d));
>+  EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d);
>+  EXPECT_TRUE(absl::ParseDuration("0.429496729501234567890123456789s", &d));
>+  EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d);
>+
>+  // Negative durations.
>+  EXPECT_TRUE(absl::ParseDuration("-1s", &d));
>+  EXPECT_EQ(absl::Seconds(-1), d);
>+  EXPECT_TRUE(absl::ParseDuration("-1m", &d));
>+  EXPECT_EQ(absl::Minutes(-1), d);
>+  EXPECT_TRUE(absl::ParseDuration("-1h", &d));
>+  EXPECT_EQ(absl::Hours(-1), d);
>+
>+  EXPECT_TRUE(absl::ParseDuration("-1h2s", &d));
>+  EXPECT_EQ(-(absl::Hours(1) + absl::Seconds(2)), d);
>+  EXPECT_FALSE(absl::ParseDuration("1h-2s", &d));
>+  EXPECT_FALSE(absl::ParseDuration("-1h-2s", &d));
>+  EXPECT_FALSE(absl::ParseDuration("-1h -2s", &d));
>+}
>+
>+TEST(Duration, FormatParseRoundTrip) {
>+#define TEST_PARSE_ROUNDTRIP(d)                \
>+  do {                                         \
>+    std::string s = absl::FormatDuration(d);        \
>+    absl::Duration dur;                        \
>+    EXPECT_TRUE(absl::ParseDuration(s, &dur)); \
>+    EXPECT_EQ(d, dur);                         \
>+  } while (0)
>+
>+  TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Microseconds(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Milliseconds(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Seconds(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Minutes(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(1));
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(2));
>+
>+  TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(-1));
>+  TEST_PARSE_ROUNDTRIP(absl::Microseconds(-1));
>+  TEST_PARSE_ROUNDTRIP(absl::Milliseconds(-1));
>+  TEST_PARSE_ROUNDTRIP(absl::Seconds(-1));
>+  TEST_PARSE_ROUNDTRIP(absl::Minutes(-1));
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(-1));
>+
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(2));
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(-2));
>+  TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(-2));
>+
>+  TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1) +
>+                       absl::Nanoseconds(1) / 4);  // 1.25ns
>+
>+  const absl::Duration huge_range = ApproxYears(100000000000);
>+  TEST_PARSE_ROUNDTRIP(huge_range);
>+  TEST_PARSE_ROUNDTRIP(huge_range + (absl::Seconds(1) - absl::Nanoseconds(1)));
>+
>+#undef TEST_PARSE_ROUNDTRIP
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e98e60a372bfc3a4472c8a17ac7a5383782b887a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format.cc
>@@ -0,0 +1,139 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <string.h>
>+#include <cctype>
>+#include <cstdint>
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+#include "absl/time/time.h"
>+
>+namespace cctz = absl::time_internal::cctz;
>+
>+namespace absl {
>+
>+extern const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
>+extern const char RFC3339_sec[] =  "%Y-%m-%dT%H:%M:%S%Ez";
>+
>+extern const char RFC1123_full[] = "%a, %d %b %E4Y %H:%M:%S %z";
>+extern const char RFC1123_no_wday[] =  "%d %b %E4Y %H:%M:%S %z";
>+
>+namespace {
>+
>+const char kInfiniteFutureStr[] = "infinite-future";
>+const char kInfinitePastStr[] = "infinite-past";
>+
>+struct cctz_parts {
>+  cctz::time_point<cctz::seconds> sec;
>+  cctz::detail::femtoseconds fem;
>+};
>+
>+inline cctz::time_point<cctz::seconds> unix_epoch() {
>+  return std::chrono::time_point_cast<cctz::seconds>(
>+      std::chrono::system_clock::from_time_t(0));
>+}
>+
>+// Splits a Time into seconds and femtoseconds, which can be used with CCTZ.
>+// Requires that 't' is finite. See duration.cc for details about rep_hi and
>+// rep_lo.
>+cctz_parts Split(absl::Time t) {
>+  const auto d = time_internal::ToUnixDuration(t);
>+  const int64_t rep_hi = time_internal::GetRepHi(d);
>+  const int64_t rep_lo = time_internal::GetRepLo(d);
>+  const auto sec = unix_epoch() + cctz::seconds(rep_hi);
>+  const auto fem = cctz::detail::femtoseconds(rep_lo * (1000 * 1000 / 4));
>+  return {sec, fem};
>+}
>+
>+// Joins the given seconds and femtoseconds into a Time. See duration.cc for
>+// details about rep_hi and rep_lo.
>+absl::Time Join(const cctz_parts& parts) {
>+  const int64_t rep_hi = (parts.sec - unix_epoch()).count();
>+  const uint32_t rep_lo = parts.fem.count() / (1000 * 1000 / 4);
>+  const auto d = time_internal::MakeDuration(rep_hi, rep_lo);
>+  return time_internal::FromUnixDuration(d);
>+}
>+
>+}  // namespace
>+
>+std::string FormatTime(const std::string& format, absl::Time t, absl::TimeZone tz) {
>+  if (t == absl::InfiniteFuture()) return kInfiniteFutureStr;
>+  if (t == absl::InfinitePast()) return kInfinitePastStr;
>+  const auto parts = Split(t);
>+  return cctz::detail::format(format, parts.sec, parts.fem,
>+                              cctz::time_zone(tz));
>+}
>+
>+std::string FormatTime(absl::Time t, absl::TimeZone tz) {
>+  return FormatTime(RFC3339_full, t, tz);
>+}
>+
>+std::string FormatTime(absl::Time t) {
>+  return absl::FormatTime(RFC3339_full, t, absl::LocalTimeZone());
>+}
>+
>+bool ParseTime(const std::string& format, const std::string& input, absl::Time* time,
>+               std::string* err) {
>+  return absl::ParseTime(format, input, absl::UTCTimeZone(), time, err);
>+}
>+
>+// If the input std::string does not contain an explicit UTC offset, interpret
>+// the fields with respect to the given TimeZone.
>+bool ParseTime(const std::string& format, const std::string& input, absl::TimeZone tz,
>+               absl::Time* time, std::string* err) {
>+  const char* data = input.c_str();
>+  while (std::isspace(*data)) ++data;
>+
>+  size_t inf_size = strlen(kInfiniteFutureStr);
>+  if (strncmp(data, kInfiniteFutureStr, inf_size) == 0) {
>+    const char* new_data = data + inf_size;
>+    while (std::isspace(*new_data)) ++new_data;
>+    if (*new_data == '\0') {
>+      *time = InfiniteFuture();
>+      return true;
>+    }
>+  }
>+
>+  inf_size = strlen(kInfinitePastStr);
>+  if (strncmp(data, kInfinitePastStr, inf_size) == 0) {
>+    const char* new_data = data + inf_size;
>+    while (std::isspace(*new_data)) ++new_data;
>+    if (*new_data == '\0') {
>+      *time = InfinitePast();
>+      return true;
>+    }
>+  }
>+
>+  std::string error;
>+  cctz_parts parts;
>+  const bool b = cctz::detail::parse(format, input, cctz::time_zone(tz),
>+                                     &parts.sec, &parts.fem, &error);
>+  if (b) {
>+    *time = Join(parts);
>+  } else if (err != nullptr) {
>+    *err = error;
>+  }
>+  return b;
>+}
>+
>+// Functions required to support absl::Time flags.
>+bool ParseFlag(const std::string& text, absl::Time* t, std::string* error) {
>+  return absl::ParseTime(RFC3339_full, text, absl::UTCTimeZone(), t, error);
>+}
>+
>+std::string UnparseFlag(absl::Time t) {
>+  return absl::FormatTime(RFC3339_full, t, absl::UTCTimeZone());
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ee53d71c685484c291b647cf09f5a5c90b9772f3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_benchmark.cc
>@@ -0,0 +1,63 @@
>+// Copyright 2018 The Abseil Authors.
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstddef>
>+#include <string>
>+
>+#include "absl/time/internal/test_util.h"
>+#include "absl/time/time.h"
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+namespace {
>+const char* const kFormats[] = {
>+    absl::RFC1123_full,     // 0
>+    absl::RFC1123_no_wday,  // 1
>+    absl::RFC3339_full,     // 2
>+    absl::RFC3339_sec,      // 3
>+    "%Y-%m-%dT%H:%M:%S",    // 4
>+    "%Y-%m-%d",             // 5
>+};
>+const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]);
>+}  // namespace
>+
>+void BM_Format_FormatTime(benchmark::State& state) {
>+  const std::string fmt = kFormats[state.range(0)];
>+  state.SetLabel(fmt);
>+  const absl::TimeZone lax =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  const absl::Time t =
>+      absl::FromDateTime(1977, 6, 28, 9, 8, 7, lax) + absl::Nanoseconds(1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::FormatTime(fmt, t, lax).length());
>+  }
>+}
>+BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1);
>+
>+void BM_Format_ParseTime(benchmark::State& state) {
>+  const std::string fmt = kFormats[state.range(0)];
>+  state.SetLabel(fmt);
>+  const absl::TimeZone lax =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  absl::Time t =
>+      absl::FromDateTime(1977, 6, 28, 9, 8, 7, lax) + absl::Nanoseconds(1);
>+  const std::string when = absl::FormatTime(fmt, t, lax);
>+  std::string err;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ParseTime(fmt, when, lax, &t, &err));
>+  }
>+}
>+BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..7c84c33f1eb55c230eead44613f07db08afef283
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/format_test.cc
>@@ -0,0 +1,434 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <cstdint>
>+#include <limits>
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/time/internal/test_util.h"
>+#include "absl/time/time.h"
>+
>+using testing::HasSubstr;
>+
>+namespace {
>+
>+// A helper that tests the given format specifier by itself, and with leading
>+// and trailing characters.  For example: TestFormatSpecifier(t, "%a", "Thu").
>+void TestFormatSpecifier(absl::Time t, absl::TimeZone tz, const std::string& fmt,
>+                         const std::string& ans) {
>+  EXPECT_EQ(ans, absl::FormatTime(fmt, t, tz));
>+  EXPECT_EQ("xxx " + ans, absl::FormatTime("xxx " + fmt, t, tz));
>+  EXPECT_EQ(ans + " yyy", absl::FormatTime(fmt + " yyy", t, tz));
>+  EXPECT_EQ("xxx " + ans + " yyy",
>+            absl::FormatTime("xxx " + fmt + " yyy", t, tz));
>+}
>+
>+//
>+// Testing FormatTime()
>+//
>+
>+TEST(FormatTime, Basics) {
>+  absl::TimeZone tz = absl::UTCTimeZone();
>+  absl::Time t = absl::FromTimeT(0);
>+
>+  // Starts with a couple basic edge cases.
>+  EXPECT_EQ("", absl::FormatTime("", t, tz));
>+  EXPECT_EQ(" ", absl::FormatTime(" ", t, tz));
>+  EXPECT_EQ("  ", absl::FormatTime("  ", t, tz));
>+  EXPECT_EQ("xxx", absl::FormatTime("xxx", t, tz));
>+  std::string big(128, 'x');
>+  EXPECT_EQ(big, absl::FormatTime(big, t, tz));
>+  // Cause the 1024-byte buffer to grow.
>+  std::string bigger(100000, 'x');
>+  EXPECT_EQ(bigger, absl::FormatTime(bigger, t, tz));
>+
>+  t += absl::Hours(13) + absl::Minutes(4) + absl::Seconds(5);
>+  t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8);
>+  EXPECT_EQ("1970-01-01", absl::FormatTime("%Y-%m-%d", t, tz));
>+  EXPECT_EQ("13:04:05", absl::FormatTime("%H:%M:%S", t, tz));
>+  EXPECT_EQ("13:04:05.006", absl::FormatTime("%H:%M:%E3S", t, tz));
>+  EXPECT_EQ("13:04:05.006007", absl::FormatTime("%H:%M:%E6S", t, tz));
>+  EXPECT_EQ("13:04:05.006007008", absl::FormatTime("%H:%M:%E9S", t, tz));
>+}
>+
>+TEST(FormatTime, LocaleSpecific) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+  absl::Time t = absl::FromTimeT(0);
>+
>+  TestFormatSpecifier(t, tz, "%a", "Thu");
>+  TestFormatSpecifier(t, tz, "%A", "Thursday");
>+  TestFormatSpecifier(t, tz, "%b", "Jan");
>+  TestFormatSpecifier(t, tz, "%B", "January");
>+
>+  // %c should at least produce the numeric year and time-of-day.
>+  const std::string s =
>+      absl::FormatTime("%c", absl::FromTimeT(0), absl::UTCTimeZone());
>+  EXPECT_THAT(s, HasSubstr("1970"));
>+  EXPECT_THAT(s, HasSubstr("00:00:00"));
>+
>+  TestFormatSpecifier(t, tz, "%p", "AM");
>+  TestFormatSpecifier(t, tz, "%x", "01/01/70");
>+  TestFormatSpecifier(t, tz, "%X", "00:00:00");
>+}
>+
>+TEST(FormatTime, ExtendedSeconds) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+
>+  // No subseconds.
>+  absl::Time t = absl::FromTimeT(0) + absl::Seconds(5);
>+  EXPECT_EQ("05", absl::FormatTime("%E*S", t, tz));
>+  EXPECT_EQ("05.000000000000000", absl::FormatTime("%E15S", t, tz));
>+
>+  // With subseconds.
>+  t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8);
>+  EXPECT_EQ("05.006007008", absl::FormatTime("%E*S", t, tz));
>+  EXPECT_EQ("05", absl::FormatTime("%E0S", t, tz));
>+  EXPECT_EQ("05.006007008000000", absl::FormatTime("%E15S", t, tz));
>+
>+  // Times before the Unix epoch.
>+  t = absl::FromUnixMicros(-1);
>+  EXPECT_EQ("1969-12-31 23:59:59.999999",
>+            absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
>+
>+  // Here is a "%E*S" case we got wrong for a while.  While the first
>+  // instant below is correctly rendered as "...:07.333304", the second
>+  // one used to appear as "...:07.33330499999999999".
>+  t = absl::FromUnixMicros(1395024427333304);
>+  EXPECT_EQ("2014-03-17 02:47:07.333304",
>+            absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
>+  t += absl::Microseconds(1);
>+  EXPECT_EQ("2014-03-17 02:47:07.333305",
>+            absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
>+}
>+
>+TEST(FormatTime, RFC1123FormatPadsYear) {  // locale specific
>+  absl::TimeZone tz = absl::UTCTimeZone();
>+
>+  // A year of 77 should be padded to 0077.
>+  absl::Time t = absl::FromDateTime(77, 6, 28, 9, 8, 7, tz);
>+  EXPECT_EQ("Mon, 28 Jun 0077 09:08:07 +0000",
>+            absl::FormatTime(absl::RFC1123_full, t, tz));
>+  EXPECT_EQ("28 Jun 0077 09:08:07 +0000",
>+            absl::FormatTime(absl::RFC1123_no_wday, t, tz));
>+}
>+
>+TEST(FormatTime, InfiniteTime) {
>+  absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+
>+  // The format and timezone are ignored.
>+  EXPECT_EQ("infinite-future",
>+            absl::FormatTime("%H:%M blah", absl::InfiniteFuture(), tz));
>+  EXPECT_EQ("infinite-past",
>+            absl::FormatTime("%H:%M blah", absl::InfinitePast(), tz));
>+}
>+
>+//
>+// Testing ParseTime()
>+//
>+
>+TEST(ParseTime, Basics) {
>+  absl::Time t = absl::FromTimeT(1234567890);
>+  std::string err;
>+
>+  // Simple edge cases.
>+  EXPECT_TRUE(absl::ParseTime("", "", &t, &err)) << err;
>+  EXPECT_EQ(absl::UnixEpoch(), t);  // everything defaulted
>+  EXPECT_TRUE(absl::ParseTime(" ", " ", &t, &err)) << err;
>+  EXPECT_TRUE(absl::ParseTime("  ", "  ", &t, &err)) << err;
>+  EXPECT_TRUE(absl::ParseTime("x", "x", &t, &err)) << err;
>+  EXPECT_TRUE(absl::ParseTime("xxx", "xxx", &t, &err)) << err;
>+
>+  EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
>+                              "2013-06-28 19:08:09 -0800", &t, &err))
>+      << err;
>+  absl::Time::Breakdown bd = t.In(absl::FixedTimeZone(-8 * 60 * 60));
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, -8 * 60 * 60, false);
>+  EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
>+}
>+
>+TEST(ParseTime, NullErrorString) {
>+  absl::Time t;
>+  EXPECT_FALSE(absl::ParseTime("%Q", "invalid format", &t, nullptr));
>+  EXPECT_FALSE(absl::ParseTime("%H", "12 trailing data", &t, nullptr));
>+  EXPECT_FALSE(
>+      absl::ParseTime("%H out of range", "42 out of range", &t, nullptr));
>+}
>+
>+TEST(ParseTime, WithTimeZone) {
>+  const absl::TimeZone tz =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  absl::Time t;
>+  std::string e;
>+
>+  // We can parse a std::string without a UTC offset if we supply a timezone.
>+  EXPECT_TRUE(
>+      absl::ParseTime("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &t, &e))
>+      << e;
>+  absl::Time::Breakdown bd = t.In(tz);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, -7 * 60 * 60, true);
>+  EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
>+
>+  // But the timezone is ignored when a UTC offset is present.
>+  EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
>+                              "2013-06-28 19:08:09 +0800", tz, &t, &e))
>+      << e;
>+  bd = t.In(absl::FixedTimeZone(8 * 60 * 60));
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 6, 28, 19, 8, 9, 8 * 60 * 60, false);
>+  EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
>+}
>+
>+TEST(ParseTime, ErrorCases) {
>+  absl::Time t = absl::FromTimeT(0);
>+  std::string err;
>+
>+  EXPECT_FALSE(absl::ParseTime("%S", "123", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+
>+  // Can't parse an illegal format specifier.
>+  err.clear();
>+  EXPECT_FALSE(absl::ParseTime("%Q", "x", &t, &err)) << err;
>+  // Exact contents of "err" are platform-dependent because of
>+  // differences in the strptime implementation between OSX and Linux.
>+  EXPECT_FALSE(err.empty());
>+
>+  // Fails because of trailing, unparsed data "blah".
>+  EXPECT_FALSE(absl::ParseTime("%m-%d", "2-3 blah", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+
>+  // Feb 31 requires normalization.
>+  EXPECT_FALSE(absl::ParseTime("%m-%d", "2-31", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Out-of-range"));
>+
>+  // Check that we cannot have spaces in UTC offsets.
>+  EXPECT_TRUE(absl::ParseTime("%z", "-0203", &t, &err)) << err;
>+  EXPECT_FALSE(absl::ParseTime("%z", "- 2 3", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_TRUE(absl::ParseTime("%Ez", "-02:03", &t, &err)) << err;
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "- 2: 3", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+
>+  // Check that we reject other malformed UTC offsets.
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "+-08:00", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "-+08:00", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+
>+  // Check that we do not accept "-0" in fields that allow zero.
>+  EXPECT_FALSE(absl::ParseTime("%Y", "-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%E4Y", "-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%H", "-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%M", "-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%S", "-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%z", "+-000", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "+-0:00", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+  EXPECT_FALSE(absl::ParseTime("%z", "-00-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "-00:-0", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+}
>+
>+TEST(ParseTime, ExtendedSeconds) {
>+  std::string err;
>+  absl::Time t;
>+
>+  // Here is a "%E*S" case we got wrong for a while.  The fractional
>+  // part of the first instant is less than 2^31 and was correctly
>+  // parsed, while the second (and any subsecond field >=2^31) failed.
>+  t = absl::UnixEpoch();
>+  EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483647", &t, &err)) << err;
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
>+                absl::Nanoseconds(1) / 2,
>+            t);
>+  t = absl::UnixEpoch();
>+  EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483648", &t, &err)) << err;
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
>+                absl::Nanoseconds(3) / 4,
>+            t);
>+
>+  // We should also be able to specify long strings of digits far
>+  // beyond the current resolution and have them convert the same way.
>+  t = absl::UnixEpoch();
>+  EXPECT_TRUE(absl::ParseTime(
>+      "%E*S", "0.214748364801234567890123456789012345678901234567890123456789",
>+      &t, &err))
>+      << err;
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
>+                absl::Nanoseconds(3) / 4,
>+            t);
>+}
>+
>+TEST(ParseTime, ExtendedOffsetErrors) {
>+  std::string err;
>+  absl::Time t;
>+
>+  // %z against +-HHMM.
>+  EXPECT_FALSE(absl::ParseTime("%z", "-123", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+
>+  // %z against +-HH.
>+  EXPECT_FALSE(absl::ParseTime("%z", "-1", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+
>+  // %Ez against +-HH:MM.
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "-12:3", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+
>+  // %Ez against +-HHMM.
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "-123", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
>+
>+  // %Ez against +-HH.
>+  EXPECT_FALSE(absl::ParseTime("%Ez", "-1", &t, &err)) << err;
>+  EXPECT_THAT(err, HasSubstr("Failed to parse"));
>+}
>+
>+TEST(ParseTime, InfiniteTime) {
>+  absl::Time t;
>+  std::string err;
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future", &t, &err));
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+
>+  // Surrounding whitespace.
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "  infinite-future", &t, &err));
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future  ", &t, &err));
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "  infinite-future  ", &t, &err));
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past", &t, &err));
>+  EXPECT_EQ(absl::InfinitePast(), t);
>+
>+  // Surrounding whitespace.
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "  infinite-past", &t, &err));
>+  EXPECT_EQ(absl::InfinitePast(), t);
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past  ", &t, &err));
>+  EXPECT_EQ(absl::InfinitePast(), t);
>+  EXPECT_TRUE(absl::ParseTime("%H:%M blah", "  infinite-past  ", &t, &err));
>+  EXPECT_EQ(absl::InfinitePast(), t);
>+
>+  // "infinite-future" as literal std::string
>+  absl::TimeZone tz = absl::UTCTimeZone();
>+  EXPECT_TRUE(absl::ParseTime("infinite-future %H:%M", "infinite-future 03:04",
>+                              &t, &err));
>+  EXPECT_NE(absl::InfiniteFuture(), t);
>+  EXPECT_EQ(3, t.In(tz).hour);
>+  EXPECT_EQ(4, t.In(tz).minute);
>+
>+  // "infinite-past" as literal std::string
>+  EXPECT_TRUE(
>+      absl::ParseTime("infinite-past %H:%M", "infinite-past 03:04", &t, &err));
>+  EXPECT_NE(absl::InfinitePast(), t);
>+  EXPECT_EQ(3, t.In(tz).hour);
>+  EXPECT_EQ(4, t.In(tz).minute);
>+
>+  // The input doesn't match the format.
>+  EXPECT_FALSE(absl::ParseTime("infinite-future %H:%M", "03:04", &t, &err));
>+  EXPECT_FALSE(absl::ParseTime("infinite-past %H:%M", "03:04", &t, &err));
>+}
>+
>+TEST(ParseTime, FailsOnUnrepresentableTime) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::Time t;
>+  EXPECT_FALSE(
>+      absl::ParseTime("%Y-%m-%d", "-292277022657-01-27", utc, &t, nullptr));
>+  EXPECT_TRUE(
>+      absl::ParseTime("%Y-%m-%d", "-292277022657-01-28", utc, &t, nullptr));
>+  EXPECT_TRUE(
>+      absl::ParseTime("%Y-%m-%d", "292277026596-12-04", utc, &t, nullptr));
>+  EXPECT_FALSE(
>+      absl::ParseTime("%Y-%m-%d", "292277026596-12-05", utc, &t, nullptr));
>+}
>+
>+//
>+// Roundtrip test for FormatTime()/ParseTime().
>+//
>+
>+TEST(FormatParse, RoundTrip) {
>+  const absl::TimeZone gst =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  const absl::Time in = absl::FromDateTime(1977, 6, 28, 9, 8, 7, gst);
>+  const absl::Duration subseconds = absl::Nanoseconds(654321);
>+  std::string err;
>+
>+  // RFC3339, which renders subseconds.
>+  {
>+    absl::Time out;
>+    const std::string s = absl::FormatTime(absl::RFC3339_full, in + subseconds, gst);
>+    EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
>+        << s << ": " << err;
>+    EXPECT_EQ(in + subseconds, out);  // RFC3339_full includes %Ez
>+  }
>+
>+  // RFC1123, which only does whole seconds.
>+  {
>+    absl::Time out;
>+    const std::string s = absl::FormatTime(absl::RFC1123_full, in, gst);
>+    EXPECT_TRUE(absl::ParseTime(absl::RFC1123_full, s, &out, &err))
>+        << s << ": " << err;
>+    EXPECT_EQ(in, out);  // RFC1123_full includes %z
>+  }
>+
>+  // `absl::FormatTime()` falls back to strftime() for "%c", which appears to
>+  // work. On Windows, `absl::ParseTime()` falls back to std::get_time() which
>+  // appears to fail on "%c" (or at least on the "%c" text produced by
>+  // `strftime()`). This makes it fail the round-trip test.
>+#ifndef _MSC_VER
>+  // Even though we don't know what %c will produce, it should roundtrip,
>+  // but only in the 0-offset timezone.
>+  {
>+    absl::Time out;
>+    const std::string s = absl::FormatTime("%c", in, absl::UTCTimeZone());
>+    EXPECT_TRUE(absl::ParseTime("%c", s, &out, &err)) << s << ": " << err;
>+    EXPECT_EQ(in, out);
>+  }
>+#endif  // _MSC_VER
>+}
>+
>+TEST(FormatParse, RoundTripDistantFuture) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+  const absl::Time in =
>+      absl::FromUnixSeconds(std::numeric_limits<int64_t>::max());
>+  std::string err;
>+
>+  absl::Time out;
>+  const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz);
>+  EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
>+      << s << ": " << err;
>+  EXPECT_EQ(in, out);
>+}
>+
>+TEST(FormatParse, RoundTripDistantPast) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+  const absl::Time in =
>+      absl::FromUnixSeconds(std::numeric_limits<int64_t>::min());
>+  std::string err;
>+
>+  absl::Time out;
>+  const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz);
>+  EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
>+      << s << ": " << err;
>+  EXPECT_EQ(in, out);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..9f1ba21cf7e21b22f3343f84001a434a83b606b5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.bazel
>@@ -0,0 +1,140 @@
>+# Copyright 2016 Google Inc. All Rights Reserved.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#   http://www.apache.org/licenses/LICENSE-2.0
>+#
>+#   Unless required by applicable law or agreed to in writing, software
>+#   distributed under the License is distributed on an "AS IS" BASIS,
>+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+#   See the License for the specific language governing permissions and
>+#   limitations under the License.
>+
>+licenses(["notice"])  # Apache License
>+
>+### libraries
>+
>+cc_library(
>+    name = "includes",
>+    textual_hdrs = [
>+        "include/cctz/civil_time.h",
>+        "include/cctz/civil_time_detail.h",
>+        "include/cctz/time_zone.h",
>+    ],
>+    visibility = ["//absl/time:__pkg__"],
>+)
>+
>+cc_library(
>+    name = "civil_time",
>+    srcs = ["src/civil_time_detail.cc"],
>+    hdrs = [
>+        "include/cctz/civil_time.h",
>+    ],
>+    textual_hdrs = ["include/cctz/civil_time_detail.h"],
>+    visibility = ["//visibility:public"],
>+)
>+
>+cc_library(
>+    name = "time_zone",
>+    srcs = [
>+        "src/time_zone_fixed.cc",
>+        "src/time_zone_fixed.h",
>+        "src/time_zone_format.cc",
>+        "src/time_zone_if.cc",
>+        "src/time_zone_if.h",
>+        "src/time_zone_impl.cc",
>+        "src/time_zone_impl.h",
>+        "src/time_zone_info.cc",
>+        "src/time_zone_info.h",
>+        "src/time_zone_libc.cc",
>+        "src/time_zone_libc.h",
>+        "src/time_zone_lookup.cc",
>+        "src/time_zone_posix.cc",
>+        "src/time_zone_posix.h",
>+        "src/tzfile.h",
>+        "src/zone_info_source.cc",
>+    ],
>+    hdrs = [
>+        "include/cctz/time_zone.h",
>+        "include/cctz/zone_info_source.h",
>+    ],
>+    visibility = ["//visibility:public"],
>+    deps = [":civil_time"],
>+)
>+
>+### tests
>+
>+cc_test(
>+    name = "civil_time_test",
>+    size = "small",
>+    srcs = ["src/civil_time_test.cc"],
>+    deps = [
>+        ":civil_time",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "time_zone_format_test",
>+    size = "small",
>+    srcs = ["src/time_zone_format_test.cc"],
>+    data = [":zoneinfo"],
>+    tags = [
>+        "no_test_android_arm",
>+        "no_test_android_arm64",
>+        "no_test_android_x86",
>+    ],
>+    deps = [
>+        ":civil_time",
>+        ":time_zone",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "time_zone_lookup_test",
>+    size = "small",
>+    srcs = ["src/time_zone_lookup_test.cc"],
>+    data = [":zoneinfo"],
>+    tags = [
>+        "no_test_android_arm",
>+        "no_test_android_arm64",
>+        "no_test_android_x86",
>+    ],
>+    deps = [
>+        ":civil_time",
>+        ":time_zone",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+### benchmarks
>+
>+cc_test(
>+    name = "cctz_benchmark",
>+    srcs = [
>+        "src/cctz_benchmark.cc",
>+        "src/time_zone_if.h",
>+        "src/time_zone_impl.h",
>+        "src/time_zone_info.h",
>+        "src/tzfile.h",
>+    ],
>+    linkstatic = 1,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":civil_time",
>+        ":time_zone",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+### examples
>+
>+### binaries
>+
>+filegroup(
>+    name = "zoneinfo",
>+    srcs = glob(["testdata/zoneinfo/**"]),
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..86417e7ce3c73563be6972980c38f9a486ace0a3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/BUILD.gn
>@@ -0,0 +1,72 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("includes") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [ "//build/config/compiler:no_chromium_code" ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "include/cctz/civil_time.h",
>+    "include/cctz/civil_time_detail.h",
>+    "include/cctz/time_zone.h",
>+  ]
>+  visibility = []
>+  visibility += [ "../time:*" ]
>+}
>+
>+source_set("civil_time") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [ "//build/config/compiler:no_chromium_code" ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "src/civil_time_detail.cc",
>+  ]
>+  public = [
>+    "include/cctz/civil_time.h",
>+    "include/cctz/civil_time_detail.h",
>+  ]
>+}
>+
>+source_set("time_zone") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [ "//build/config/compiler:no_chromium_code" ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "src/time_zone_fixed.cc",
>+    "src/time_zone_fixed.h",
>+    "src/time_zone_format.cc",
>+    "src/time_zone_if.cc",
>+    "src/time_zone_if.h",
>+    "src/time_zone_impl.cc",
>+    "src/time_zone_impl.h",
>+    "src/time_zone_info.cc",
>+    "src/time_zone_info.h",
>+    "src/time_zone_libc.cc",
>+    "src/time_zone_libc.h",
>+    "src/time_zone_lookup.cc",
>+    "src/time_zone_posix.cc",
>+    "src/time_zone_posix.h",
>+    "src/tzfile.h",
>+    "src/zone_info_source.cc",
>+  ]
>+  public = [
>+    "include/cctz/time_zone.h",
>+    "include/cctz/zone_info_source.h",
>+  ]
>+  deps = [
>+    ":civil_time",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..898222b4c7af29830ea20507d9c294f2d0ef969c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time.h
>@@ -0,0 +1,329 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time_detail.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// The term "civil time" refers to the legally recognized human-scale time
>+// that is represented by the six fields YYYY-MM-DD hh:mm:ss. Modern-day civil
>+// time follows the Gregorian Calendar and is a time-zone-independent concept.
>+// A "date" is perhaps the most common example of a civil time (represented in
>+// this library as cctz::civil_day). This library provides six classes and a
>+// handful of functions that help with rounding, iterating, and arithmetic on
>+// civil times while avoiding complications like daylight-saving time (DST).
>+//
>+// The following six classes form the core of this civil-time library:
>+//
>+//   * civil_second
>+//   * civil_minute
>+//   * civil_hour
>+//   * civil_day
>+//   * civil_month
>+//   * civil_year
>+//
>+// Each class is a simple value type with the same interface for construction
>+// and the same six accessors for each of the civil fields (year, month, day,
>+// hour, minute, and second, aka YMDHMS). These classes differ only in their
>+// alignment, which is indicated by the type name and specifies the field on
>+// which arithmetic operates.
>+//
>+// Each class can be constructed by passing up to six optional integer
>+// arguments representing the YMDHMS fields (in that order) to the
>+// constructor. Omitted fields are assigned their minimum valid value. Hours,
>+// minutes, and seconds will be set to 0, month and day will be set to 1, and
>+// since there is no minimum valid year, it will be set to 1970. So, a
>+// default-constructed civil-time object will have YMDHMS fields representing
>+// "1970-01-01 00:00:00". Fields that are out-of-range are normalized (e.g.,
>+// October 32 -> November 1) so that all civil-time objects represent valid
>+// values.
>+//
>+// Each civil-time class is aligned to the civil-time field indicated in the
>+// class's name after normalization. Alignment is performed by setting all the
>+// inferior fields to their minimum valid value (as described above). The
>+// following are examples of how each of the six types would align the fields
>+// representing November 22, 2015 at 12:34:56 in the afternoon. (Note: the
>+// std::string format used here is not important; it's just a shorthand way of
>+// showing the six YMDHMS fields.)
>+//
>+//   civil_second  2015-11-22 12:34:56
>+//   civil_minute  2015-11-22 12:34:00
>+//   civil_hour    2015-11-22 12:00:00
>+//   civil_day     2015-11-22 00:00:00
>+//   civil_month   2015-11-01 00:00:00
>+//   civil_year    2015-01-01 00:00:00
>+//
>+// Each civil-time type performs arithmetic on the field to which it is
>+// aligned. This means that adding 1 to a civil_day increments the day field
>+// (normalizing as necessary), and subtracting 7 from a civil_month operates
>+// on the month field (normalizing as necessary). All arithmetic produces a
>+// valid civil time. Difference requires two similarly aligned civil-time
>+// objects and returns the scalar answer in units of the objects' alignment.
>+// For example, the difference between two civil_hour objects will give an
>+// answer in units of civil hours.
>+//
>+// In addition to the six civil-time types just described, there are
>+// a handful of helper functions and algorithms for performing common
>+// calculations. These are described below.
>+//
>+// Note: In C++14 and later, this library is usable in a constexpr context.
>+//
>+// CONSTRUCTION:
>+//
>+// Each of the civil-time types can be constructed in two ways: by directly
>+// passing to the constructor up to six (optional) integers representing the
>+// YMDHMS fields, or by copying the YMDHMS fields from a differently aligned
>+// civil-time type.
>+//
>+//   civil_day default_value;  // 1970-01-01 00:00:00
>+//
>+//   civil_day a(2015, 2, 3);           // 2015-02-03 00:00:00
>+//   civil_day b(2015, 2, 3, 4, 5, 6);  // 2015-02-03 00:00:00
>+//   civil_day c(2015);                 // 2015-01-01 00:00:00
>+//
>+//   civil_second ss(2015, 2, 3, 4, 5, 6);  // 2015-02-03 04:05:06
>+//   civil_minute mm(ss);                   // 2015-02-03 04:05:00
>+//   civil_hour hh(mm);                     // 2015-02-03 04:00:00
>+//   civil_day d(hh);                       // 2015-02-03 00:00:00
>+//   civil_month m(d);                      // 2015-02-01 00:00:00
>+//   civil_year y(m);                       // 2015-01-01 00:00:00
>+//
>+//   m = civil_month(y);     // 2015-01-01 00:00:00
>+//   d = civil_day(m);       // 2015-01-01 00:00:00
>+//   hh = civil_hour(d);     // 2015-01-01 00:00:00
>+//   mm = civil_minute(hh);  // 2015-01-01 00:00:00
>+//   ss = civil_second(mm);  // 2015-01-01 00:00:00
>+//
>+// ALIGNMENT CONVERSION:
>+//
>+// The alignment of a civil-time object cannot change, but the object may be
>+// used to construct a new object with a different alignment. This is referred
>+// to as "realigning". When realigning to a type with the same or more
>+// precision (e.g., civil_day -> civil_second), the conversion may be
>+// performed implicitly since no information is lost. However, if information
>+// could be discarded (e.g., civil_second -> civil_day), the conversion must
>+// be explicit at the call site.
>+//
>+//   void fun(const civil_day& day);
>+//
>+//   civil_second cs;
>+//   fun(cs);  // Won't compile because data may be discarded
>+//   fun(civil_day(cs));  // OK: explicit conversion
>+//
>+//   civil_day cd;
>+//   fun(cd);  // OK: no conversion needed
>+//
>+//   civil_month cm;
>+//   fun(cm);  // OK: implicit conversion to civil_day
>+//
>+// NORMALIZATION:
>+//
>+// Integer arguments passed to the constructor may be out-of-range, in which
>+// case they are normalized to produce a valid civil-time object. This enables
>+// natural arithmetic on constructor arguments without worrying about the
>+// field's range. Normalization guarantees that there are no invalid
>+// civil-time objects.
>+//
>+//   civil_day d(2016, 10, 32);  // Out-of-range day; normalized to 2016-11-01
>+//
>+// Note: If normalization is undesired, you can signal an error by comparing
>+// the constructor arguments to the normalized values returned by the YMDHMS
>+// properties.
>+//
>+// PROPERTIES:
>+//
>+// All civil-time types have accessors for all six of the civil-time fields:
>+// year, month, day, hour, minute, and second. Recall that fields inferior to
>+// the type's aligment will be set to their minimum valid value.
>+//
>+//   civil_day d(2015, 6, 28);
>+//   // d.year() == 2015
>+//   // d.month() == 6
>+//   // d.day() == 28
>+//   // d.hour() == 0
>+//   // d.minute() == 0
>+//   // d.second() == 0
>+//
>+// COMPARISON:
>+//
>+// Comparison always considers all six YMDHMS fields, regardless of the type's
>+// alignment. Comparison between differently aligned civil-time types is
>+// allowed.
>+//
>+//   civil_day feb_3(2015, 2, 3);  // 2015-02-03 00:00:00
>+//   civil_day mar_4(2015, 3, 4);  // 2015-03-04 00:00:00
>+//   // feb_3 < mar_4
>+//   // civil_year(feb_3) == civil_year(mar_4)
>+//
>+//   civil_second feb_3_noon(2015, 2, 3, 12, 0, 0);  // 2015-02-03 12:00:00
>+//   // feb_3 < feb_3_noon
>+//   // feb_3 == civil_day(feb_3_noon)
>+//
>+//   // Iterates all the days of February 2015.
>+//   for (civil_day d(2015, 2, 1); d < civil_month(2015, 3); ++d) {
>+//     // ...
>+//   }
>+//
>+// STREAMING:
>+//
>+// Each civil-time type may be sent to an output stream using operator<<().
>+// The output format follows the pattern "YYYY-MM-DDThh:mm:ss" where fields
>+// inferior to the type's alignment are omitted.
>+//
>+//   civil_second cs(2015, 2, 3, 4, 5, 6);
>+//   std::cout << cs << "\n";  // Outputs: 2015-02-03T04:05:06
>+//
>+//   civil_day cd(cs);
>+//   std::cout << cd << "\n";  // Outputs: 2015-02-03
>+//
>+//   civil_year cy(cs);
>+//   std::cout << cy << "\n";  // Outputs: 2015
>+//
>+// ARITHMETIC:
>+//
>+// Civil-time types support natural arithmetic operators such as addition,
>+// subtraction, and difference. Arithmetic operates on the civil-time field
>+// indicated in the type's name. Difference requires arguments with the same
>+// alignment and returns the answer in units of the alignment.
>+//
>+//   civil_day a(2015, 2, 3);
>+//   ++a;                         // 2015-02-04 00:00:00
>+//   --a;                         // 2015-02-03 00:00:00
>+//   civil_day b = a + 1;         // 2015-02-04 00:00:00
>+//   civil_day c = 1 + b;         // 2015-02-05 00:00:00
>+//   int n = c - a;               // n = 2 (civil days)
>+//   int m = c - civil_month(c);  // Won't compile: different types.
>+//
>+// EXAMPLE: Adding a month to January 31.
>+//
>+// One of the classic questions that arises when considering a civil-time
>+// library (or a date library or a date/time library) is this: "What happens
>+// when you add a month to January 31?" This is an interesting question
>+// because there could be a number of possible answers:
>+//
>+//   1. March 3 (or 2 if a leap year). This may make sense if the operation
>+//      wants the equivalent of February 31.
>+//   2. February 28 (or 29 if a leap year). This may make sense if the operation
>+//      wants the last day of January to go to the last day of February.
>+//   3. Error. The caller may get some error, an exception, an invalid date
>+//      object, or maybe false is returned. This may make sense because there is
>+//      no single unambiguously correct answer to the question.
>+//
>+// Practically speaking, any answer that is not what the programmer intended
>+// is the wrong answer.
>+//
>+// This civil-time library avoids the problem by making it impossible to ask
>+// ambiguous questions. All civil-time objects are aligned to a particular
>+// civil-field boundary (such as aligned to a year, month, day, hour, minute,
>+// or second), and arithmetic operates on the field to which the object is
>+// aligned. This means that in order to "add a month" the object must first be
>+// aligned to a month boundary, which is equivalent to the first day of that
>+// month.
>+//
>+// Of course, there are ways to compute an answer the question at hand using
>+// this civil-time library, but they require the programmer to be explicit
>+// about the answer they expect. To illustrate, let's see how to compute all
>+// three of the above possible answers to the question of "Jan 31 plus 1
>+// month":
>+//
>+//   const civil_day d(2015, 1, 31);
>+//
>+//   // Answer 1:
>+//   // Add 1 to the month field in the constructor, and rely on normalization.
>+//   const auto ans_normalized = civil_day(d.year(), d.month() + 1, d.day());
>+//   // ans_normalized == 2015-03-03 (aka Feb 31)
>+//
>+//   // Answer 2:
>+//   // Add 1 to month field, capping to the end of next month.
>+//   const auto next_month = civil_month(d) + 1;
>+//   const auto last_day_of_next_month = civil_day(next_month + 1) - 1;
>+//   const auto ans_capped = std::min(ans_normalized, last_day_of_next_month);
>+//   // ans_capped == 2015-02-28
>+//
>+//   // Answer 3:
>+//   // Signal an error if the normalized answer is not in next month.
>+//   if (civil_month(ans_normalized) != next_month) {
>+//     // error, month overflow
>+//   }
>+//
>+using civil_year = detail::civil_year;
>+using civil_month = detail::civil_month;
>+using civil_day = detail::civil_day;
>+using civil_hour = detail::civil_hour;
>+using civil_minute = detail::civil_minute;
>+using civil_second = detail::civil_second;
>+
>+// An enum class with members monday, tuesday, wednesday, thursday, friday,
>+// saturday, and sunday. These enum values may be sent to an output stream
>+// using operator<<(). The result is the full weekday name in English with a
>+// leading capital letter.
>+//
>+//   weekday wd = weekday::thursday;
>+//   std::cout << wd << "\n";  // Outputs: Thursday
>+//
>+using detail::weekday;
>+
>+// Returns the weekday for the given civil_day.
>+//
>+//   civil_day a(2015, 8, 13);
>+//   weekday wd = get_weekday(a);  // wd == weekday::thursday
>+//
>+using detail::get_weekday;
>+
>+// Returns the civil_day that strictly follows or precedes the given
>+// civil_day, and that falls on the given weekday.
>+//
>+// For example, given:
>+//
>+//     August 2015
>+// Su Mo Tu We Th Fr Sa
>+//                    1
>+//  2  3  4  5  6  7  8
>+//  9 10 11 12 13 14 15
>+// 16 17 18 19 20 21 22
>+// 23 24 25 26 27 28 29
>+// 30 31
>+//
>+//   civil_day a(2015, 8, 13);  // get_weekday(a) == weekday::thursday
>+//   civil_day b = next_weekday(a, weekday::thursday);  // b = 2015-08-20
>+//   civil_day c = prev_weekday(a, weekday::thursday);  // c = 2015-08-06
>+//
>+//   civil_day d = ...
>+//   // Gets the following Thursday if d is not already Thursday
>+//   civil_day thurs1 = prev_weekday(d, weekday::thursday) + 7;
>+//   // Gets the previous Thursday if d is not already Thursday
>+//   civil_day thurs2 = next_weekday(d, weekday::thursday) - 7;
>+//
>+using detail::next_weekday;
>+using detail::prev_weekday;
>+
>+// Returns the day-of-year for the given civil_day.
>+//
>+//   civil_day a(2015, 1, 1);
>+//   int yd_jan_1 = get_yearday(a);   // yd_jan_1 = 1
>+//   civil_day b(2015, 12, 31);
>+//   int yd_dec_31 = get_yearday(b);  // yd_dec_31 = 365
>+//
>+using detail::get_yearday;
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..2362a4f4fbc958fa30dcfe7a14187688df462adf
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h
>@@ -0,0 +1,560 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
>+
>+#include <cstdint>
>+#include <limits>
>+#include <ostream>
>+#include <type_traits>
>+
>+// Disable constexpr support unless we are in C++14 mode.
>+#if __cpp_constexpr >= 201304 || _MSC_VER >= 1910
>+#define CONSTEXPR_D constexpr  // data
>+#define CONSTEXPR_F constexpr  // function
>+#define CONSTEXPR_M constexpr  // member
>+#else
>+#define CONSTEXPR_D const
>+#define CONSTEXPR_F inline
>+#define CONSTEXPR_M
>+#endif
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// Support years that at least span the range of 64-bit time_t values.
>+using year_t = std::int_fast64_t;
>+
>+// Type alias that indicates an argument is not normalized (e.g., the
>+// constructor parameters and operands/results of addition/subtraction).
>+using diff_t = std::int_fast64_t;
>+
>+namespace detail {
>+
>+// Type aliases that indicate normalized argument values.
>+using month_t = std::int_fast8_t;   // [1:12]
>+using day_t = std::int_fast8_t;     // [1:31]
>+using hour_t = std::int_fast8_t;    // [0:23]
>+using minute_t = std::int_fast8_t;  // [0:59]
>+using second_t = std::int_fast8_t;  // [0:59]
>+
>+// Normalized civil-time fields: Y-M-D HH:MM:SS.
>+struct fields {
>+  CONSTEXPR_M fields(year_t year, month_t month, day_t day,
>+                     hour_t hour, minute_t minute, second_t second)
>+      : y(year), m(month), d(day), hh(hour), mm(minute), ss(second) {}
>+  std::int_least64_t y;
>+  std::int_least8_t m;
>+  std::int_least8_t d;
>+  std::int_least8_t hh;
>+  std::int_least8_t mm;
>+  std::int_least8_t ss;
>+};
>+
>+struct second_tag {};
>+struct minute_tag : second_tag {};
>+struct hour_tag : minute_tag {};
>+struct day_tag : hour_tag {};
>+struct month_tag : day_tag {};
>+struct year_tag : month_tag {};
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+// Field normalization (without avoidable overflow).
>+
>+namespace impl {
>+
>+CONSTEXPR_F bool is_leap_year(year_t y) noexcept {
>+  return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0);
>+}
>+CONSTEXPR_F int year_index(year_t y, month_t m) noexcept {
>+  return (static_cast<int>((y + (m > 2)) % 400) + 400) % 400;
>+}
>+CONSTEXPR_F int days_per_century(year_t y, month_t m) noexcept {
>+  const int yi = year_index(y, m);
>+  return 36524 + (yi == 0 || yi > 300);
>+}
>+CONSTEXPR_F int days_per_4years(year_t y, month_t m) noexcept {
>+  const int yi = year_index(y, m);
>+  return 1460 + (yi == 0 || yi > 300 || (yi - 1) % 100 < 96);
>+}
>+CONSTEXPR_F int days_per_year(year_t y, month_t m) noexcept {
>+  return is_leap_year(y + (m > 2)) ? 366 : 365;
>+}
>+CONSTEXPR_F int days_per_month(year_t y, month_t m) noexcept {
>+  CONSTEXPR_D int k_days_per_month[1 + 12] = {
>+      -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31  // non leap year
>+  };
>+  return k_days_per_month[m] + (m == 2 && is_leap_year(y));
>+}
>+
>+CONSTEXPR_F fields n_day(year_t y, month_t m, diff_t d, diff_t cd,
>+                         hour_t hh, minute_t mm, second_t ss) noexcept {
>+  y += (cd / 146097) * 400;
>+  cd %= 146097;
>+  if (cd < 0) {
>+    y -= 400;
>+    cd += 146097;
>+  }
>+  y += (d / 146097) * 400;
>+  d = d % 146097 + cd;
>+  if (d > 0) {
>+    if (d > 146097) {
>+      y += 400;
>+      d -= 146097;
>+    }
>+  } else {
>+    if (d > -365) {
>+      // We often hit the previous year when stepping a civil time backwards,
>+      // so special case it to avoid counting up by 100/4/1-year chunks.
>+      y -= 1;
>+      d += days_per_year(y, m);
>+    } else {
>+      y -= 400;
>+      d += 146097;
>+    }
>+  }
>+  if (d > 365) {
>+    for (int n = days_per_century(y, m); d > n; n = days_per_century(y, m)) {
>+      d -= n;
>+      y += 100;
>+    }
>+    for (int n = days_per_4years(y, m); d > n; n = days_per_4years(y, m)) {
>+      d -= n;
>+      y += 4;
>+    }
>+    for (int n = days_per_year(y, m); d > n; n = days_per_year(y, m)) {
>+      d -= n;
>+      ++y;
>+    }
>+  }
>+  if (d > 28) {
>+    for (int n = days_per_month(y, m); d > n; n = days_per_month(y, m)) {
>+      d -= n;
>+      if (++m > 12) {
>+        ++y;
>+        m = 1;
>+      }
>+    }
>+  }
>+  return fields(y, m, static_cast<day_t>(d), hh, mm, ss);
>+}
>+CONSTEXPR_F fields n_mon(year_t y, diff_t m, diff_t d, diff_t cd,
>+                         hour_t hh, minute_t mm, second_t ss) noexcept {
>+  if (m != 12) {
>+    y += m / 12;
>+    m %= 12;
>+    if (m <= 0) {
>+      y -= 1;
>+      m += 12;
>+    }
>+  }
>+  return n_day(y, static_cast<month_t>(m), d, cd, hh, mm, ss);
>+}
>+CONSTEXPR_F fields n_hour(year_t y, diff_t m, diff_t d, diff_t cd,
>+                          diff_t hh, minute_t mm, second_t ss) noexcept {
>+  cd += hh / 24;
>+  hh %= 24;
>+  if (hh < 0) {
>+    cd -= 1;
>+    hh += 24;
>+  }
>+  return n_mon(y, m, d, cd, static_cast<hour_t>(hh), mm, ss);
>+}
>+CONSTEXPR_F fields n_min(year_t y, diff_t m, diff_t d, diff_t hh, diff_t ch,
>+                         diff_t mm, second_t ss) noexcept {
>+  ch += mm / 60;
>+  mm %= 60;
>+  if (mm < 0) {
>+    ch -= 1;
>+    mm += 60;
>+  }
>+  return n_hour(y, m, d, hh / 24 + ch / 24, hh % 24 + ch % 24,
>+                static_cast<minute_t>(mm), ss);
>+}
>+CONSTEXPR_F fields n_sec(year_t y, diff_t m, diff_t d, diff_t hh, diff_t mm,
>+                         diff_t ss) noexcept {
>+  // Optimization for when (non-constexpr) fields are already normalized.
>+  if (0 <= ss && ss < 60) {
>+    const second_t nss = static_cast<second_t>(ss);
>+    if (0 <= mm && mm < 60) {
>+      const minute_t nmm = static_cast<minute_t>(mm);
>+      if (0 <= hh && hh < 24) {
>+        const hour_t nhh = static_cast<hour_t>(hh);
>+        if (1 <= d && d <= 28 && 1 <= m && m <= 12) {
>+          const day_t nd = static_cast<day_t>(d);
>+          const month_t nm = static_cast<month_t>(m);
>+          return fields(y, nm, nd, nhh, nmm, nss);
>+        }
>+        return n_mon(y, m, d, 0, nhh, nmm, nss);
>+      }
>+      return n_hour(y, m, d, hh / 24, hh % 24, nmm, nss);
>+    }
>+    return n_min(y, m, d, hh, mm / 60, mm % 60, nss);
>+  }
>+  diff_t cm = ss / 60;
>+  ss %= 60;
>+  if (ss < 0) {
>+    cm -= 1;
>+    ss += 60;
>+  }
>+  return n_min(y, m, d, hh, mm / 60 + cm / 60, mm % 60 + cm % 60,
>+               static_cast<second_t>(ss));
>+}
>+
>+}  // namespace impl
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+// Increments the indicated (normalized) field by "n".
>+CONSTEXPR_F fields step(second_tag, fields f, diff_t n) noexcept {
>+  return impl::n_sec(f.y, f.m, f.d, f.hh, f.mm + n / 60, f.ss + n % 60);
>+}
>+CONSTEXPR_F fields step(minute_tag, fields f, diff_t n) noexcept {
>+  return impl::n_min(f.y, f.m, f.d, f.hh + n / 60, 0, f.mm + n % 60, f.ss);
>+}
>+CONSTEXPR_F fields step(hour_tag, fields f, diff_t n) noexcept {
>+  return impl::n_hour(f.y, f.m, f.d + n / 24, 0, f.hh + n % 24, f.mm, f.ss);
>+}
>+CONSTEXPR_F fields step(day_tag, fields f, diff_t n) noexcept {
>+  return impl::n_day(f.y, f.m, f.d, n, f.hh, f.mm, f.ss);
>+}
>+CONSTEXPR_F fields step(month_tag, fields f, diff_t n) noexcept {
>+  return impl::n_mon(f.y + n / 12, f.m + n % 12, f.d, 0, f.hh, f.mm, f.ss);
>+}
>+CONSTEXPR_F fields step(year_tag, fields f, diff_t n) noexcept {
>+  return fields(f.y + n, f.m, f.d, f.hh, f.mm, f.ss);
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+namespace impl {
>+
>+// Returns (v * f + a) but avoiding intermediate overflow when possible.
>+CONSTEXPR_F diff_t scale_add(diff_t v, diff_t f, diff_t a) noexcept {
>+  return (v < 0) ? ((v + 1) * f + a) - f : ((v - 1) * f + a) + f;
>+}
>+
>+// Map a (normalized) Y/M/D to the number of days before/after 1970-01-01.
>+// Probably overflows for years outside [-292277022656:292277026595].
>+CONSTEXPR_F diff_t ymd_ord(year_t y, month_t m, day_t d) noexcept {
>+  const diff_t eyear = (m <= 2) ? y - 1 : y;
>+  const diff_t era = (eyear >= 0 ? eyear : eyear - 399) / 400;
>+  const diff_t yoe = eyear - era * 400;
>+  const diff_t doy = (153 * (m + (m > 2 ? -3 : 9)) + 2) / 5 + d - 1;
>+  const diff_t doe = yoe * 365 + yoe / 4 - yoe / 100 + doy;
>+  return era * 146097 + doe - 719468;
>+}
>+
>+// Returns the difference in days between two normalized Y-M-D tuples.
>+// ymd_ord() will encounter integer overflow given extreme year values,
>+// yet the difference between two such extreme values may actually be
>+// small, so we take a little care to avoid overflow when possible by
>+// exploiting the 146097-day cycle.
>+CONSTEXPR_F diff_t day_difference(year_t y1, month_t m1, day_t d1,
>+                                  year_t y2, month_t m2, day_t d2) noexcept {
>+  const diff_t a_c4_off = y1 % 400;
>+  const diff_t b_c4_off = y2 % 400;
>+  diff_t c4_diff = (y1 - a_c4_off) - (y2 - b_c4_off);
>+  diff_t delta = ymd_ord(a_c4_off, m1, d1) - ymd_ord(b_c4_off, m2, d2);
>+  if (c4_diff > 0 && delta < 0) {
>+    delta += 2 * 146097;
>+    c4_diff -= 2 * 400;
>+  } else if (c4_diff < 0 && delta > 0) {
>+    delta -= 2 * 146097;
>+    c4_diff += 2 * 400;
>+  }
>+  return (c4_diff / 400 * 146097) + delta;
>+}
>+
>+}  // namespace impl
>+
>+// Returns the difference between fields structs using the indicated unit.
>+CONSTEXPR_F diff_t difference(year_tag, fields f1, fields f2) noexcept {
>+  return f1.y - f2.y;
>+}
>+CONSTEXPR_F diff_t difference(month_tag, fields f1, fields f2) noexcept {
>+  return impl::scale_add(difference(year_tag{}, f1, f2), 12, (f1.m - f2.m));
>+}
>+CONSTEXPR_F diff_t difference(day_tag, fields f1, fields f2) noexcept {
>+  return impl::day_difference(f1.y, f1.m, f1.d, f2.y, f2.m, f2.d);
>+}
>+CONSTEXPR_F diff_t difference(hour_tag, fields f1, fields f2) noexcept {
>+  return impl::scale_add(difference(day_tag{}, f1, f2), 24, (f1.hh - f2.hh));
>+}
>+CONSTEXPR_F diff_t difference(minute_tag, fields f1, fields f2) noexcept {
>+  return impl::scale_add(difference(hour_tag{}, f1, f2), 60, (f1.mm - f2.mm));
>+}
>+CONSTEXPR_F diff_t difference(second_tag, fields f1, fields f2) noexcept {
>+  return impl::scale_add(difference(minute_tag{}, f1, f2), 60, f1.ss - f2.ss);
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+// Aligns the (normalized) fields struct to the indicated field.
>+CONSTEXPR_F fields align(second_tag, fields f) noexcept {
>+  return f;
>+}
>+CONSTEXPR_F fields align(minute_tag, fields f) noexcept {
>+  return fields{f.y, f.m, f.d, f.hh, f.mm, 0};
>+}
>+CONSTEXPR_F fields align(hour_tag, fields f) noexcept {
>+  return fields{f.y, f.m, f.d, f.hh, 0, 0};
>+}
>+CONSTEXPR_F fields align(day_tag, fields f) noexcept {
>+  return fields{f.y, f.m, f.d, 0, 0, 0};
>+}
>+CONSTEXPR_F fields align(month_tag, fields f) noexcept {
>+  return fields{f.y, f.m, 1, 0, 0, 0};
>+}
>+CONSTEXPR_F fields align(year_tag, fields f) noexcept {
>+  return fields{f.y, 1, 1, 0, 0, 0};
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+template <typename T>
>+class civil_time {
>+ public:
>+  explicit CONSTEXPR_M civil_time(year_t y, diff_t m = 1, diff_t d = 1,
>+                                  diff_t hh = 0, diff_t mm = 0,
>+                                  diff_t ss = 0) noexcept
>+      : civil_time(impl::n_sec(y, m, d, hh, mm, ss)) {}
>+
>+  CONSTEXPR_M civil_time() noexcept : f_{1970, 1, 1, 0, 0, 0} {}
>+  civil_time(const civil_time&) = default;
>+  civil_time& operator=(const civil_time&) = default;
>+
>+  // Conversion between civil times of different alignment. Conversion to
>+  // a more precise alignment is allowed implicitly (e.g., day -> hour),
>+  // but conversion where information is discarded must be explicit
>+  // (e.g., second -> minute).
>+  template <typename U, typename S>
>+  using preserves_data =
>+      typename std::enable_if<std::is_base_of<U, S>::value>::type;
>+  template <typename U>
>+  CONSTEXPR_M civil_time(const civil_time<U>& ct,
>+                         preserves_data<T, U>* = nullptr) noexcept
>+      : civil_time(ct.f_) {}
>+  template <typename U>
>+  explicit CONSTEXPR_M civil_time(const civil_time<U>& ct,
>+                                  preserves_data<U, T>* = nullptr) noexcept
>+      : civil_time(ct.f_) {}
>+
>+  // Factories for the maximum/minimum representable civil_time.
>+  static civil_time max() {
>+    const auto max_year = std::numeric_limits<std::int_least64_t>::max();
>+    return civil_time(max_year, 12, 31, 23, 59, 59);
>+  }
>+  static civil_time min() {
>+    const auto min_year = std::numeric_limits<std::int_least64_t>::min();
>+    return civil_time(min_year, 1, 1, 0, 0, 0);
>+  }
>+
>+  // Field accessors.  Note: All but year() return an int.
>+  CONSTEXPR_M year_t year() const noexcept { return f_.y; }
>+  CONSTEXPR_M int month() const noexcept { return f_.m; }
>+  CONSTEXPR_M int day() const noexcept { return f_.d; }
>+  CONSTEXPR_M int hour() const noexcept { return f_.hh; }
>+  CONSTEXPR_M int minute() const noexcept { return f_.mm; }
>+  CONSTEXPR_M int second() const noexcept { return f_.ss; }
>+
>+  // Assigning arithmetic.
>+  CONSTEXPR_M civil_time& operator+=(diff_t n) noexcept {
>+    f_ = step(T{}, f_, n);
>+    return *this;
>+  }
>+  CONSTEXPR_M civil_time& operator-=(diff_t n) noexcept {
>+    if (n != std::numeric_limits<diff_t>::min()) {
>+      f_ = step(T{}, f_, -n);
>+    } else {
>+      f_ = step(T{}, step(T{}, f_, -(n + 1)), 1);
>+    }
>+    return *this;
>+  }
>+  CONSTEXPR_M civil_time& operator++() noexcept {
>+    return *this += 1;
>+  }
>+  CONSTEXPR_M civil_time operator++(int) noexcept {
>+    const civil_time a = *this;
>+    ++*this;
>+    return a;
>+  }
>+  CONSTEXPR_M civil_time& operator--() noexcept {
>+    return *this -= 1;
>+  }
>+  CONSTEXPR_M civil_time operator--(int) noexcept {
>+    const civil_time a = *this;
>+    --*this;
>+    return a;
>+  }
>+
>+  // Binary arithmetic operators.
>+  friend CONSTEXPR_F civil_time operator+(civil_time a, diff_t n) noexcept {
>+    return a += n;
>+  }
>+  friend CONSTEXPR_F civil_time operator+(diff_t n, civil_time a) noexcept {
>+    return a += n;
>+  }
>+  friend CONSTEXPR_F civil_time operator-(civil_time a, diff_t n) noexcept {
>+    return a -= n;
>+  }
>+  friend CONSTEXPR_F diff_t operator-(civil_time lhs, civil_time rhs) noexcept {
>+    return difference(T{}, lhs.f_, rhs.f_);
>+  }
>+
>+ private:
>+  // All instantiations of this template are allowed to call the following
>+  // private constructor and access the private fields member.
>+  template <typename U>
>+  friend class civil_time;
>+
>+  // The designated constructor that all others eventually call.
>+  explicit CONSTEXPR_M civil_time(fields f) noexcept : f_(align(T{}, f)) {}
>+
>+  fields f_;
>+};
>+
>+// Disallows difference between differently aligned types.
>+// auto n = civil_day(...) - civil_hour(...);  // would be confusing.
>+template <typename T, typename U>
>+CONSTEXPR_F diff_t operator-(civil_time<T>, civil_time<U>) = delete;
>+
>+using civil_year = civil_time<year_tag>;
>+using civil_month = civil_time<month_tag>;
>+using civil_day = civil_time<day_tag>;
>+using civil_hour = civil_time<hour_tag>;
>+using civil_minute = civil_time<minute_tag>;
>+using civil_second = civil_time<second_tag>;
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+// Relational operators that work with differently aligned objects.
>+// Always compares all six fields.
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator<(const civil_time<T1>& lhs,
>+                           const civil_time<T2>& rhs) noexcept {
>+  return (lhs.year() < rhs.year() ||
>+          (lhs.year() == rhs.year() &&
>+           (lhs.month() < rhs.month() ||
>+            (lhs.month() == rhs.month() &&
>+             (lhs.day() < rhs.day() ||
>+              (lhs.day() == rhs.day() &&
>+               (lhs.hour() < rhs.hour() ||
>+                (lhs.hour() == rhs.hour() &&
>+                 (lhs.minute() < rhs.minute() ||
>+                  (lhs.minute() == rhs.minute() &&
>+                   (lhs.second() < rhs.second())))))))))));
>+}
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator<=(const civil_time<T1>& lhs,
>+                            const civil_time<T2>& rhs) noexcept {
>+  return !(rhs < lhs);
>+}
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator>=(const civil_time<T1>& lhs,
>+                            const civil_time<T2>& rhs) noexcept {
>+  return !(lhs < rhs);
>+}
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator>(const civil_time<T1>& lhs,
>+                           const civil_time<T2>& rhs) noexcept {
>+  return rhs < lhs;
>+}
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator==(const civil_time<T1>& lhs,
>+                            const civil_time<T2>& rhs) noexcept {
>+  return lhs.year() == rhs.year() && lhs.month() == rhs.month() &&
>+         lhs.day() == rhs.day() && lhs.hour() == rhs.hour() &&
>+         lhs.minute() == rhs.minute() && lhs.second() == rhs.second();
>+}
>+template <typename T1, typename T2>
>+CONSTEXPR_F bool operator!=(const civil_time<T1>& lhs,
>+                            const civil_time<T2>& rhs) noexcept {
>+  return !(lhs == rhs);
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+enum class weekday {
>+  monday,
>+  tuesday,
>+  wednesday,
>+  thursday,
>+  friday,
>+  saturday,
>+  sunday,
>+};
>+
>+CONSTEXPR_F weekday get_weekday(const civil_day& cd) noexcept {
>+  CONSTEXPR_D weekday k_weekday_by_sun_off[7] = {
>+      weekday::sunday,     weekday::monday,    weekday::tuesday,
>+      weekday::wednesday,  weekday::thursday,  weekday::friday,
>+      weekday::saturday,
>+  };
>+  CONSTEXPR_D int k_weekday_offsets[1 + 12] = {
>+      -1, 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4,
>+  };
>+  year_t wd = cd.year() - (cd.month() < 3);
>+  if (wd >= 0) {
>+    wd += wd / 4 - wd / 100 + wd / 400;
>+  } else {
>+    wd += (wd - 3) / 4 - (wd - 99) / 100 + (wd - 399) / 400;
>+  }
>+  wd += k_weekday_offsets[cd.month()] + cd.day();
>+  return k_weekday_by_sun_off[(wd % 7 + 7) % 7];
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+CONSTEXPR_F civil_day next_weekday(civil_day cd, weekday wd) noexcept {
>+  do { cd += 1; } while (get_weekday(cd) != wd);
>+  return cd;
>+}
>+
>+CONSTEXPR_F civil_day prev_weekday(civil_day cd, weekday wd) noexcept {
>+  do { cd -= 1; } while (get_weekday(cd) != wd);
>+  return cd;
>+}
>+
>+CONSTEXPR_F int get_yearday(const civil_day& cd) noexcept {
>+  CONSTEXPR_D int k_month_offsets[1 + 12] = {
>+      -1, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334,
>+  };
>+  const int feb29 = (cd.month() > 2 && impl::is_leap_year(cd.year()));
>+  return k_month_offsets[cd.month()] + feb29 + cd.day();
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+std::ostream& operator<<(std::ostream& os, const civil_year& y);
>+std::ostream& operator<<(std::ostream& os, const civil_month& m);
>+std::ostream& operator<<(std::ostream& os, const civil_day& d);
>+std::ostream& operator<<(std::ostream& os, const civil_hour& h);
>+std::ostream& operator<<(std::ostream& os, const civil_minute& m);
>+std::ostream& operator<<(std::ostream& os, const civil_second& s);
>+std::ostream& operator<<(std::ostream& os, weekday wd);
>+
>+}  // namespace detail
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#undef CONSTEXPR_M
>+#undef CONSTEXPR_F
>+#undef CONSTEXPR_D
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/time_zone.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/time_zone.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..0b9764ea72a9caa3e5f2f7fee0427357aed28808
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/time_zone.h
>@@ -0,0 +1,380 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+// A library for translating between absolute times (represented by
>+// std::chrono::time_points of the std::chrono::system_clock) and civil
>+// times (represented by cctz::civil_second) using the rules defined by
>+// a time zone (cctz::time_zone).
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_
>+
>+#include <chrono>
>+#include <cstdint>
>+#include <string>
>+#include <utility>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// Convenience aliases. Not intended as public API points.
>+template <typename D>
>+using time_point = std::chrono::time_point<std::chrono::system_clock, D>;
>+using seconds = std::chrono::duration<std::int_fast64_t>;
>+using sys_seconds = seconds;  // Deprecated.  Use cctz::seconds instead.
>+
>+namespace detail {
>+template <typename D>
>+inline std::pair<time_point<seconds>, D>
>+split_seconds(const time_point<D>& tp) {
>+  auto sec = std::chrono::time_point_cast<seconds>(tp);
>+  auto sub = tp - sec;
>+  if (sub.count() < 0) {
>+    sec -= seconds(1);
>+    sub += seconds(1);
>+  }
>+  return {sec, std::chrono::duration_cast<D>(sub)};
>+}
>+inline std::pair<time_point<seconds>, seconds>
>+split_seconds(const time_point<seconds>& tp) {
>+  return {tp, seconds::zero()};
>+}
>+}  // namespace detail
>+
>+// cctz::time_zone is an opaque, small, value-type class representing a
>+// geo-political region within which particular rules are used for mapping
>+// between absolute and civil times. Time zones are named using the TZ
>+// identifiers from the IANA Time Zone Database, such as "America/Los_Angeles"
>+// or "Australia/Sydney". Time zones are created from factory functions such
>+// as load_time_zone(). Note: strings like "PST" and "EDT" are not valid TZ
>+// identifiers.
>+//
>+// Example:
>+//   cctz::time_zone utc = cctz::utc_time_zone();
>+//   cctz::time_zone pst = cctz::fixed_time_zone(std::chrono::hours(-8));
>+//   cctz::time_zone loc = cctz::local_time_zone();
>+//   cctz::time_zone lax;
>+//   if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... }
>+//
>+// See also:
>+// - http://www.iana.org/time-zones
>+// - http://en.wikipedia.org/wiki/Zoneinfo
>+class time_zone {
>+ public:
>+  time_zone() : time_zone(nullptr) {}  // Equivalent to UTC
>+  time_zone(const time_zone&) = default;
>+  time_zone& operator=(const time_zone&) = default;
>+
>+  std::string name() const;
>+
>+  // An absolute_lookup represents the civil time (cctz::civil_second) within
>+  // this time_zone at the given absolute time (time_point). There are
>+  // additionally a few other fields that may be useful when working with
>+  // older APIs, such as std::tm.
>+  //
>+  // Example:
>+  //   const cctz::time_zone tz = ...
>+  //   const auto tp = std::chrono::system_clock::now();
>+  //   const cctz::time_zone::absolute_lookup al = tz.lookup(tp);
>+  struct absolute_lookup {
>+    civil_second cs;
>+    // Note: The following fields exist for backward compatibility with older
>+    // APIs. Accessing these fields directly is a sign of imprudent logic in
>+    // the calling code. Modern time-related code should only access this data
>+    // indirectly by way of cctz::format().
>+    int offset;        // civil seconds east of UTC
>+    bool is_dst;       // is offset non-standard?
>+    const char* abbr;  // time-zone abbreviation (e.g., "PST")
>+  };
>+  absolute_lookup lookup(const time_point<seconds>& tp) const;
>+  template <typename D>
>+  absolute_lookup lookup(const time_point<D>& tp) const {
>+    return lookup(detail::split_seconds(tp).first);
>+  }
>+
>+  // A civil_lookup represents the absolute time(s) (time_point) that
>+  // correspond to the given civil time (cctz::civil_second) within this
>+  // time_zone. Usually the given civil time represents a unique instant
>+  // in time, in which case the conversion is unambiguous. However,
>+  // within this time zone, the given civil time may be skipped (e.g.,
>+  // during a positive UTC offset shift), or repeated (e.g., during a
>+  // negative UTC offset shift). To account for these possibilities,
>+  // civil_lookup is richer than just a single time_point.
>+  //
>+  // In all cases the civil_lookup::kind enum will indicate the nature
>+  // of the given civil-time argument, and the pre, trans, and post
>+  // members will give the absolute time answers using the pre-transition
>+  // offset, the transition point itself, and the post-transition offset,
>+  // respectively (all three times are equal if kind == UNIQUE). If any
>+  // of these three absolute times is outside the representable range of a
>+  // time_point<seconds> the field is set to its maximum/minimum value.
>+  //
>+  // Example:
>+  //   cctz::time_zone lax;
>+  //   if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... }
>+  //
>+  //   // A unique civil time.
>+  //   auto jan01 = lax.lookup(cctz::civil_second(2011, 1, 1, 0, 0, 0));
>+  //   // jan01.kind == cctz::time_zone::civil_lookup::UNIQUE
>+  //   // jan01.pre    is 2011/01/01 00:00:00 -0800
>+  //   // jan01.trans  is 2011/01/01 00:00:00 -0800
>+  //   // jan01.post   is 2011/01/01 00:00:00 -0800
>+  //
>+  //   // A Spring DST transition, when there is a gap in civil time.
>+  //   auto mar13 = lax.lookup(cctz::civil_second(2011, 3, 13, 2, 15, 0));
>+  //   // mar13.kind == cctz::time_zone::civil_lookup::SKIPPED
>+  //   // mar13.pre   is 2011/03/13 03:15:00 -0700
>+  //   // mar13.trans is 2011/03/13 03:00:00 -0700
>+  //   // mar13.post  is 2011/03/13 01:15:00 -0800
>+  //
>+  //   // A Fall DST transition, when civil times are repeated.
>+  //   auto nov06 = lax.lookup(cctz::civil_second(2011, 11, 6, 1, 15, 0));
>+  //   // nov06.kind == cctz::time_zone::civil_lookup::REPEATED
>+  //   // nov06.pre   is 2011/11/06 01:15:00 -0700
>+  //   // nov06.trans is 2011/11/06 01:00:00 -0800
>+  //   // nov06.post  is 2011/11/06 01:15:00 -0800
>+  struct civil_lookup {
>+    enum civil_kind {
>+      UNIQUE,    // the civil time was singular (pre == trans == post)
>+      SKIPPED,   // the civil time did not exist (pre >= trans > post)
>+      REPEATED,  // the civil time was ambiguous (pre < trans <= post)
>+    } kind;
>+    time_point<seconds> pre;    // uses the pre-transition offset
>+    time_point<seconds> trans;  // instant of civil-offset change
>+    time_point<seconds> post;   // uses the post-transition offset
>+  };
>+  civil_lookup lookup(const civil_second& cs) const;
>+
>+  // Finds the time of the next/previous offset change in this time zone.
>+  //
>+  // By definition, next_transition(tp, &trans) returns false when tp has
>+  // its maximum value, and prev_transition(tp, &trans) returns false
>+  // when tp has its minimum value. If the zone has no transitions, the
>+  // result will also be false no matter what the argument.
>+  //
>+  // Otherwise, when tp has its minimum value, next_transition(tp, &trans)
>+  // returns true and sets trans to the first recorded transition. Chains
>+  // of calls to next_transition()/prev_transition() will eventually return
>+  // false, but it is unspecified exactly when next_transition(tp, &trans)
>+  // jumps to false, or what time is set by prev_transition(tp, &trans) for
>+  // a very distant tp.
>+  //
>+  // Note: Enumeration of time-zone transitions is for informational purposes
>+  // only. Modern time-related code should not care about when offset changes
>+  // occur.
>+  //
>+  // Example:
>+  //   cctz::time_zone nyc;
>+  //   if (!cctz::load_time_zone("America/New_York", &nyc)) { ... }
>+  //   const auto now = std::chrono::system_clock::now();
>+  //   auto tp = cctz::time_point<cctz::seconds>::min();
>+  //   cctz::time_zone::civil_transition trans;
>+  //   while (tp <= now && nyc.next_transition(tp, &trans)) {
>+  //     // transition: trans.from -> trans.to
>+  //     tp = nyc.lookup(trans.to).trans;
>+  //   }
>+  struct civil_transition {
>+    civil_second from;  // the civil time we jump from
>+    civil_second to;    // the civil time we jump to
>+  };
>+  bool next_transition(const time_point<seconds>& tp,
>+                       civil_transition* trans) const;
>+  template <typename D>
>+  bool next_transition(const time_point<D>& tp,
>+                       civil_transition* trans) const {
>+    return next_transition(detail::split_seconds(tp).first, trans);
>+  }
>+  bool prev_transition(const time_point<seconds>& tp,
>+                       civil_transition* trans) const;
>+  template <typename D>
>+  bool prev_transition(const time_point<D>& tp,
>+                       civil_transition* trans) const {
>+    return prev_transition(detail::split_seconds(tp).first, trans);
>+  }
>+
>+  // version() and description() provide additional information about the
>+  // time zone. The content of each of the returned strings is unspecified,
>+  // however, when the IANA Time Zone Database is the underlying data source
>+  // the version() std::string will be in the familar form (e.g, "2018e") or
>+  // empty when unavailable.
>+  //
>+  // Note: These functions are for informational or testing purposes only.
>+  std::string version() const;  // empty when unknown
>+  std::string description() const;
>+
>+  // Relational operators.
>+  friend bool operator==(time_zone lhs, time_zone rhs) {
>+    return &lhs.effective_impl() == &rhs.effective_impl();
>+  }
>+  friend bool operator!=(time_zone lhs, time_zone rhs) {
>+    return !(lhs == rhs);
>+  }
>+
>+  class Impl;
>+
>+ private:
>+  explicit time_zone(const Impl* impl) : impl_(impl) {}
>+  const Impl& effective_impl() const;  // handles implicit UTC
>+  const Impl* impl_;
>+};
>+
>+// Loads the named time zone. May perform I/O on the initial load.
>+// If the name is invalid, or some other kind of error occurs, returns
>+// false and "*tz" is set to the UTC time zone.
>+bool load_time_zone(const std::string& name, time_zone* tz);
>+
>+// Returns a time_zone representing UTC. Cannot fail.
>+time_zone utc_time_zone();
>+
>+// Returns a time zone that is a fixed offset (seconds east) from UTC.
>+// Note: If the absolute value of the offset is greater than 24 hours
>+// you'll get UTC (i.e., zero offset) instead.
>+time_zone fixed_time_zone(const seconds& offset);
>+
>+// Returns a time zone representing the local time zone. Falls back to UTC.
>+// Note: local_time_zone.name() may only be something like "localtime".
>+time_zone local_time_zone();
>+
>+// Returns the civil time (cctz::civil_second) within the given time zone at
>+// the given absolute time (time_point). Since the additional fields provided
>+// by the time_zone::absolute_lookup struct should rarely be needed in modern
>+// code, this convert() function is simpler and should be preferred.
>+template <typename D>
>+inline civil_second convert(const time_point<D>& tp, const time_zone& tz) {
>+  return tz.lookup(tp).cs;
>+}
>+
>+// Returns the absolute time (time_point) that corresponds to the given civil
>+// time within the given time zone. If the civil time is not unique (i.e., if
>+// it was either repeated or non-existent), then the returned time_point is
>+// the best estimate that preserves relative order. That is, this function
>+// guarantees that if cs1 < cs2, then convert(cs1, tz) <= convert(cs2, tz).
>+inline time_point<seconds> convert(const civil_second& cs,
>+                                   const time_zone& tz) {
>+  const time_zone::civil_lookup cl = tz.lookup(cs);
>+  if (cl.kind == time_zone::civil_lookup::SKIPPED) return cl.trans;
>+  return cl.pre;
>+}
>+
>+namespace detail {
>+using femtoseconds = std::chrono::duration<std::int_fast64_t, std::femto>;
>+std::string format(const std::string&, const time_point<seconds>&,
>+                   const femtoseconds&, const time_zone&);
>+bool parse(const std::string&, const std::string&, const time_zone&,
>+           time_point<seconds>*, femtoseconds*, std::string* err = nullptr);
>+}  // namespace detail
>+
>+// Formats the given time_point in the given cctz::time_zone according to
>+// the provided format std::string. Uses strftime()-like formatting options,
>+// with the following extensions:
>+//
>+//   - %Ez  - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm)
>+//   - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss)
>+//   - %E#S - Seconds with # digits of fractional precision
>+//   - %E*S - Seconds with full fractional precision (a literal '*')
>+//   - %E#f - Fractional seconds with # digits of precision
>+//   - %E*f - Fractional seconds with full precision (a literal '*')
>+//   - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999)
>+//
>+// Note that %E0S behaves like %S, and %E0f produces no characters. In
>+// contrast %E*f always produces at least one digit, which may be '0'.
>+//
>+// Note that %Y produces as many characters as it takes to fully render the
>+// year. A year outside of [-999:9999] when formatted with %E4Y will produce
>+// more than four characters, just like %Y.
>+//
>+// Tip: Format strings should include the UTC offset (e.g., %z, %Ez, or %E*z)
>+// so that the resulting std::string uniquely identifies an absolute time.
>+//
>+// Example:
>+//   cctz::time_zone lax;
>+//   if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... }
>+//   auto tp = cctz::convert(cctz::civil_second(2013, 1, 2, 3, 4, 5), lax);
>+//   std::string f = cctz::format("%H:%M:%S", tp, lax);  // "03:04:05"
>+//   f = cctz::format("%H:%M:%E3S", tp, lax);            // "03:04:05.000"
>+template <typename D>
>+inline std::string format(const std::string& fmt, const time_point<D>& tp,
>+                          const time_zone& tz) {
>+  const auto p = detail::split_seconds(tp);
>+  const auto n = std::chrono::duration_cast<detail::femtoseconds>(p.second);
>+  return detail::format(fmt, p.first, n, tz);
>+}
>+
>+// Parses an input std::string according to the provided format std::string and
>+// returns the corresponding time_point. Uses strftime()-like formatting
>+// options, with the same extensions as cctz::format(), but with the
>+// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez
>+// and %E*z also accept the same inputs.
>+//
>+// %Y consumes as many numeric characters as it can, so the matching data
>+// should always be terminated with a non-numeric. %E4Y always consumes
>+// exactly four characters, including any sign.
>+//
>+// Unspecified fields are taken from the default date and time of ...
>+//
>+//   "1970-01-01 00:00:00.0 +0000"
>+//
>+// For example, parsing a std::string of "15:45" (%H:%M) will return a time_point
>+// that represents "1970-01-01 15:45:00.0 +0000".
>+//
>+// Note that parse() returns time instants, so it makes most sense to parse
>+// fully-specified date/time strings that include a UTC offset (%z, %Ez, or
>+// %E*z).
>+//
>+// Note also that parse() only heeds the fields year, month, day, hour,
>+// minute, (fractional) second, and UTC offset. Other fields, like weekday (%a
>+// or %A), while parsed for syntactic validity, are ignored in the conversion.
>+//
>+// Date and time fields that are out-of-range will be treated as errors rather
>+// than normalizing them like cctz::civil_second() would do. For example, it
>+// is an error to parse the date "Oct 32, 2013" because 32 is out of range.
>+//
>+// A second of ":60" is normalized to ":00" of the following minute with
>+// fractional seconds discarded. The following table shows how the given
>+// seconds and subseconds will be parsed:
>+//
>+//   "59.x" -> 59.x  // exact
>+//   "60.x" -> 00.0  // normalized
>+//   "00.x" -> 00.x  // exact
>+//
>+// Errors are indicated by returning false.
>+//
>+// Example:
>+//   const cctz::time_zone tz = ...
>+//   std::chrono::system_clock::time_point tp;
>+//   if (cctz::parse("%Y-%m-%d", "2015-10-09", tz, &tp)) {
>+//     ...
>+//   }
>+template <typename D>
>+inline bool parse(const std::string& fmt, const std::string& input,
>+                  const time_zone& tz, time_point<D>* tpp) {
>+  time_point<seconds> sec;
>+  detail::femtoseconds fs;
>+  const bool b = detail::parse(fmt, input, tz, &sec, &fs);
>+  if (b) {
>+    // TODO: Return false if unrepresentable as a time_point<D>.
>+    *tpp = std::chrono::time_point_cast<D>(sec);
>+    *tpp += std::chrono::duration_cast<D>(fs);
>+  }
>+  return b;
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..20a76979370fc06cceee9c9c7c78a51bb0f8c9fe
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h
>@@ -0,0 +1,96 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_
>+
>+#include <cstddef>
>+#include <functional>
>+#include <memory>
>+#include <string>
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// A stdio-like interface for providing zoneinfo data for a particular zone.
>+class ZoneInfoSource {
>+ public:
>+  virtual ~ZoneInfoSource();
>+
>+  virtual std::size_t Read(void* ptr, std::size_t size) = 0;  // like fread()
>+  virtual int Skip(std::size_t offset) = 0;  // like fseek()
>+
>+  // Until the zoneinfo data supports versioning information, we provide
>+  // a way for a ZoneInfoSource to indicate it out-of-band.  The default
>+  // implementation returns an empty std::string.
>+  virtual std::string Version() const;
>+};
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz_extension {
>+
>+// A function-pointer type for a factory that returns a ZoneInfoSource
>+// given the name of a time zone and a fallback factory.  Returns null
>+// when the data for the named zone cannot be found.
>+using ZoneInfoSourceFactory =
>+    std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> (*)(
>+        const std::string&,
>+        const std::function<std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource>(
>+            const std::string&)>&);
>+
>+// The user can control the mapping of zone names to zoneinfo data by
>+// providing a definition for cctz_extension::zone_info_source_factory.
>+// For example, given functions my_factory() and my_other_factory() that
>+// can return a ZoneInfoSource for a named zone, we could inject them into
>+// cctz::load_time_zone() with:
>+//
>+//   namespace cctz_extension {
>+//   namespace {
>+//   std::unique_ptr<cctz::ZoneInfoSource> CustomFactory(
>+//       const std::string& name,
>+//       const std::function<std::unique_ptr<cctz::ZoneInfoSource>(
>+//           const std::string& name)>& fallback_factory) {
>+//     if (auto zip = my_factory(name)) return zip;
>+//     if (auto zip = fallback_factory(name)) return zip;
>+//     if (auto zip = my_other_factory(name)) return zip;
>+//     return nullptr;
>+//   }
>+//   }  // namespace
>+//   ZoneInfoSourceFactory zone_info_source_factory = CustomFactory;
>+//   }  // namespace cctz_extension
>+//
>+// This might be used, say, to use zoneinfo data embedded in the program,
>+// or read from a (possibly compressed) file archive, or both.
>+//
>+// cctz_extension::zone_info_source_factory() will be called:
>+//   (1) from the same thread as the cctz::load_time_zone() call,
>+//   (2) only once for any zone name, and
>+//   (3) serially (i.e., no concurrent execution).
>+//
>+// The fallback factory obtains zoneinfo data by reading files in ${TZDIR},
>+// and it is used automatically when no zone_info_source_factory definition
>+// is linked into the program.
>+extern ZoneInfoSourceFactory zone_info_source_factory;
>+
>+}  // namespace cctz_extension
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/cctz_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/cctz_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..c97df78c09c83945e68f5511b7b92e4af31770c4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/cctz_benchmark.cc
>@@ -0,0 +1,980 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <chrono>
>+#include <ctime>
>+#include <random>
>+#include <string>
>+#include <vector>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+#include "time_zone_impl.h"
>+
>+namespace {
>+
>+namespace cctz = absl::time_internal::cctz;
>+
>+void BM_Difference_Days(benchmark::State& state) {
>+  const cctz::civil_day c(2014, 8, 22);
>+  const cctz::civil_day epoch(1970, 1, 1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(c - epoch);
>+  }
>+}
>+BENCHMARK(BM_Difference_Days);
>+
>+void BM_Step_Days(benchmark::State& state) {
>+  const cctz::civil_day kStart(2014, 8, 22);
>+  cctz::civil_day c = kStart;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(++c);
>+  }
>+}
>+BENCHMARK(BM_Step_Days);
>+
>+const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
>+const char RFC3339_sec[] = "%Y-%m-%dT%H:%M:%S%Ez";
>+
>+const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z";
>+const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z";
>+
>+// A list of known time-zone names.
>+// TODO: Refactor with src/time_zone_lookup_test.cc.
>+const char* const kTimeZoneNames[] = {
>+  "Africa/Abidjan",
>+  "Africa/Accra",
>+  "Africa/Addis_Ababa",
>+  "Africa/Algiers",
>+  "Africa/Asmara",
>+  "Africa/Asmera",
>+  "Africa/Bamako",
>+  "Africa/Bangui",
>+  "Africa/Banjul",
>+  "Africa/Bissau",
>+  "Africa/Blantyre",
>+  "Africa/Brazzaville",
>+  "Africa/Bujumbura",
>+  "Africa/Cairo",
>+  "Africa/Casablanca",
>+  "Africa/Ceuta",
>+  "Africa/Conakry",
>+  "Africa/Dakar",
>+  "Africa/Dar_es_Salaam",
>+  "Africa/Djibouti",
>+  "Africa/Douala",
>+  "Africa/El_Aaiun",
>+  "Africa/Freetown",
>+  "Africa/Gaborone",
>+  "Africa/Harare",
>+  "Africa/Johannesburg",
>+  "Africa/Juba",
>+  "Africa/Kampala",
>+  "Africa/Khartoum",
>+  "Africa/Kigali",
>+  "Africa/Kinshasa",
>+  "Africa/Lagos",
>+  "Africa/Libreville",
>+  "Africa/Lome",
>+  "Africa/Luanda",
>+  "Africa/Lubumbashi",
>+  "Africa/Lusaka",
>+  "Africa/Malabo",
>+  "Africa/Maputo",
>+  "Africa/Maseru",
>+  "Africa/Mbabane",
>+  "Africa/Mogadishu",
>+  "Africa/Monrovia",
>+  "Africa/Nairobi",
>+  "Africa/Ndjamena",
>+  "Africa/Niamey",
>+  "Africa/Nouakchott",
>+  "Africa/Ouagadougou",
>+  "Africa/Porto-Novo",
>+  "Africa/Sao_Tome",
>+  "Africa/Timbuktu",
>+  "Africa/Tripoli",
>+  "Africa/Tunis",
>+  "Africa/Windhoek",
>+  "America/Adak",
>+  "America/Anchorage",
>+  "America/Anguilla",
>+  "America/Antigua",
>+  "America/Araguaina",
>+  "America/Argentina/Buenos_Aires",
>+  "America/Argentina/Catamarca",
>+  "America/Argentina/ComodRivadavia",
>+  "America/Argentina/Cordoba",
>+  "America/Argentina/Jujuy",
>+  "America/Argentina/La_Rioja",
>+  "America/Argentina/Mendoza",
>+  "America/Argentina/Rio_Gallegos",
>+  "America/Argentina/Salta",
>+  "America/Argentina/San_Juan",
>+  "America/Argentina/San_Luis",
>+  "America/Argentina/Tucuman",
>+  "America/Argentina/Ushuaia",
>+  "America/Aruba",
>+  "America/Asuncion",
>+  "America/Atikokan",
>+  "America/Atka",
>+  "America/Bahia",
>+  "America/Bahia_Banderas",
>+  "America/Barbados",
>+  "America/Belem",
>+  "America/Belize",
>+  "America/Blanc-Sablon",
>+  "America/Boa_Vista",
>+  "America/Bogota",
>+  "America/Boise",
>+  "America/Buenos_Aires",
>+  "America/Cambridge_Bay",
>+  "America/Campo_Grande",
>+  "America/Cancun",
>+  "America/Caracas",
>+  "America/Catamarca",
>+  "America/Cayenne",
>+  "America/Cayman",
>+  "America/Chicago",
>+  "America/Chihuahua",
>+  "America/Coral_Harbour",
>+  "America/Cordoba",
>+  "America/Costa_Rica",
>+  "America/Creston",
>+  "America/Cuiaba",
>+  "America/Curacao",
>+  "America/Danmarkshavn",
>+  "America/Dawson",
>+  "America/Dawson_Creek",
>+  "America/Denver",
>+  "America/Detroit",
>+  "America/Dominica",
>+  "America/Edmonton",
>+  "America/Eirunepe",
>+  "America/El_Salvador",
>+  "America/Ensenada",
>+  "America/Fort_Nelson",
>+  "America/Fort_Wayne",
>+  "America/Fortaleza",
>+  "America/Glace_Bay",
>+  "America/Godthab",
>+  "America/Goose_Bay",
>+  "America/Grand_Turk",
>+  "America/Grenada",
>+  "America/Guadeloupe",
>+  "America/Guatemala",
>+  "America/Guayaquil",
>+  "America/Guyana",
>+  "America/Halifax",
>+  "America/Havana",
>+  "America/Hermosillo",
>+  "America/Indiana/Indianapolis",
>+  "America/Indiana/Knox",
>+  "America/Indiana/Marengo",
>+  "America/Indiana/Petersburg",
>+  "America/Indiana/Tell_City",
>+  "America/Indiana/Vevay",
>+  "America/Indiana/Vincennes",
>+  "America/Indiana/Winamac",
>+  "America/Indianapolis",
>+  "America/Inuvik",
>+  "America/Iqaluit",
>+  "America/Jamaica",
>+  "America/Jujuy",
>+  "America/Juneau",
>+  "America/Kentucky/Louisville",
>+  "America/Kentucky/Monticello",
>+  "America/Knox_IN",
>+  "America/Kralendijk",
>+  "America/La_Paz",
>+  "America/Lima",
>+  "America/Los_Angeles",
>+  "America/Louisville",
>+  "America/Lower_Princes",
>+  "America/Maceio",
>+  "America/Managua",
>+  "America/Manaus",
>+  "America/Marigot",
>+  "America/Martinique",
>+  "America/Matamoros",
>+  "America/Mazatlan",
>+  "America/Mendoza",
>+  "America/Menominee",
>+  "America/Merida",
>+  "America/Metlakatla",
>+  "America/Mexico_City",
>+  "America/Miquelon",
>+  "America/Moncton",
>+  "America/Monterrey",
>+  "America/Montevideo",
>+  "America/Montreal",
>+  "America/Montserrat",
>+  "America/Nassau",
>+  "America/New_York",
>+  "America/Nipigon",
>+  "America/Nome",
>+  "America/Noronha",
>+  "America/North_Dakota/Beulah",
>+  "America/North_Dakota/Center",
>+  "America/North_Dakota/New_Salem",
>+  "America/Ojinaga",
>+  "America/Panama",
>+  "America/Pangnirtung",
>+  "America/Paramaribo",
>+  "America/Phoenix",
>+  "America/Port-au-Prince",
>+  "America/Port_of_Spain",
>+  "America/Porto_Acre",
>+  "America/Porto_Velho",
>+  "America/Puerto_Rico",
>+  "America/Punta_Arenas",
>+  "America/Rainy_River",
>+  "America/Rankin_Inlet",
>+  "America/Recife",
>+  "America/Regina",
>+  "America/Resolute",
>+  "America/Rio_Branco",
>+  "America/Rosario",
>+  "America/Santa_Isabel",
>+  "America/Santarem",
>+  "America/Santiago",
>+  "America/Santo_Domingo",
>+  "America/Sao_Paulo",
>+  "America/Scoresbysund",
>+  "America/Shiprock",
>+  "America/Sitka",
>+  "America/St_Barthelemy",
>+  "America/St_Johns",
>+  "America/St_Kitts",
>+  "America/St_Lucia",
>+  "America/St_Thomas",
>+  "America/St_Vincent",
>+  "America/Swift_Current",
>+  "America/Tegucigalpa",
>+  "America/Thule",
>+  "America/Thunder_Bay",
>+  "America/Tijuana",
>+  "America/Toronto",
>+  "America/Tortola",
>+  "America/Vancouver",
>+  "America/Virgin",
>+  "America/Whitehorse",
>+  "America/Winnipeg",
>+  "America/Yakutat",
>+  "America/Yellowknife",
>+  "Antarctica/Casey",
>+  "Antarctica/Davis",
>+  "Antarctica/DumontDUrville",
>+  "Antarctica/Macquarie",
>+  "Antarctica/Mawson",
>+  "Antarctica/McMurdo",
>+  "Antarctica/Palmer",
>+  "Antarctica/Rothera",
>+  "Antarctica/South_Pole",
>+  "Antarctica/Syowa",
>+  "Antarctica/Troll",
>+  "Antarctica/Vostok",
>+  "Arctic/Longyearbyen",
>+  "Asia/Aden",
>+  "Asia/Almaty",
>+  "Asia/Amman",
>+  "Asia/Anadyr",
>+  "Asia/Aqtau",
>+  "Asia/Aqtobe",
>+  "Asia/Ashgabat",
>+  "Asia/Ashkhabad",
>+  "Asia/Atyrau",
>+  "Asia/Baghdad",
>+  "Asia/Bahrain",
>+  "Asia/Baku",
>+  "Asia/Bangkok",
>+  "Asia/Barnaul",
>+  "Asia/Beirut",
>+  "Asia/Bishkek",
>+  "Asia/Brunei",
>+  "Asia/Calcutta",
>+  "Asia/Chita",
>+  "Asia/Choibalsan",
>+  "Asia/Chongqing",
>+  "Asia/Chungking",
>+  "Asia/Colombo",
>+  "Asia/Dacca",
>+  "Asia/Damascus",
>+  "Asia/Dhaka",
>+  "Asia/Dili",
>+  "Asia/Dubai",
>+  "Asia/Dushanbe",
>+  "Asia/Famagusta",
>+  "Asia/Gaza",
>+  "Asia/Harbin",
>+  "Asia/Hebron",
>+  "Asia/Ho_Chi_Minh",
>+  "Asia/Hong_Kong",
>+  "Asia/Hovd",
>+  "Asia/Irkutsk",
>+  "Asia/Istanbul",
>+  "Asia/Jakarta",
>+  "Asia/Jayapura",
>+  "Asia/Jerusalem",
>+  "Asia/Kabul",
>+  "Asia/Kamchatka",
>+  "Asia/Karachi",
>+  "Asia/Kashgar",
>+  "Asia/Kathmandu",
>+  "Asia/Katmandu",
>+  "Asia/Khandyga",
>+  "Asia/Kolkata",
>+  "Asia/Krasnoyarsk",
>+  "Asia/Kuala_Lumpur",
>+  "Asia/Kuching",
>+  "Asia/Kuwait",
>+  "Asia/Macao",
>+  "Asia/Macau",
>+  "Asia/Magadan",
>+  "Asia/Makassar",
>+  "Asia/Manila",
>+  "Asia/Muscat",
>+  "Asia/Nicosia",
>+  "Asia/Novokuznetsk",
>+  "Asia/Novosibirsk",
>+  "Asia/Omsk",
>+  "Asia/Oral",
>+  "Asia/Phnom_Penh",
>+  "Asia/Pontianak",
>+  "Asia/Pyongyang",
>+  "Asia/Qatar",
>+  "Asia/Qyzylorda",
>+  "Asia/Rangoon",
>+  "Asia/Riyadh",
>+  "Asia/Saigon",
>+  "Asia/Sakhalin",
>+  "Asia/Samarkand",
>+  "Asia/Seoul",
>+  "Asia/Shanghai",
>+  "Asia/Singapore",
>+  "Asia/Srednekolymsk",
>+  "Asia/Taipei",
>+  "Asia/Tashkent",
>+  "Asia/Tbilisi",
>+  "Asia/Tehran",
>+  "Asia/Tel_Aviv",
>+  "Asia/Thimbu",
>+  "Asia/Thimphu",
>+  "Asia/Tokyo",
>+  "Asia/Tomsk",
>+  "Asia/Ujung_Pandang",
>+  "Asia/Ulaanbaatar",
>+  "Asia/Ulan_Bator",
>+  "Asia/Urumqi",
>+  "Asia/Ust-Nera",
>+  "Asia/Vientiane",
>+  "Asia/Vladivostok",
>+  "Asia/Yakutsk",
>+  "Asia/Yangon",
>+  "Asia/Yekaterinburg",
>+  "Asia/Yerevan",
>+  "Atlantic/Azores",
>+  "Atlantic/Bermuda",
>+  "Atlantic/Canary",
>+  "Atlantic/Cape_Verde",
>+  "Atlantic/Faeroe",
>+  "Atlantic/Faroe",
>+  "Atlantic/Jan_Mayen",
>+  "Atlantic/Madeira",
>+  "Atlantic/Reykjavik",
>+  "Atlantic/South_Georgia",
>+  "Atlantic/St_Helena",
>+  "Atlantic/Stanley",
>+  "Australia/ACT",
>+  "Australia/Adelaide",
>+  "Australia/Brisbane",
>+  "Australia/Broken_Hill",
>+  "Australia/Canberra",
>+  "Australia/Currie",
>+  "Australia/Darwin",
>+  "Australia/Eucla",
>+  "Australia/Hobart",
>+  "Australia/LHI",
>+  "Australia/Lindeman",
>+  "Australia/Lord_Howe",
>+  "Australia/Melbourne",
>+  "Australia/NSW",
>+  "Australia/North",
>+  "Australia/Perth",
>+  "Australia/Queensland",
>+  "Australia/South",
>+  "Australia/Sydney",
>+  "Australia/Tasmania",
>+  "Australia/Victoria",
>+  "Australia/West",
>+  "Australia/Yancowinna",
>+  "Brazil/Acre",
>+  "Brazil/DeNoronha",
>+  "Brazil/East",
>+  "Brazil/West",
>+  "CET",
>+  "CST6CDT",
>+  "Canada/Atlantic",
>+  "Canada/Central",
>+  "Canada/Eastern",
>+  "Canada/Mountain",
>+  "Canada/Newfoundland",
>+  "Canada/Pacific",
>+  "Canada/Saskatchewan",
>+  "Canada/Yukon",
>+  "Chile/Continental",
>+  "Chile/EasterIsland",
>+  "Cuba",
>+  "EET",
>+  "EST",
>+  "EST5EDT",
>+  "Egypt",
>+  "Eire",
>+  "Etc/GMT",
>+  "Etc/GMT+0",
>+  "Etc/GMT+1",
>+  "Etc/GMT+10",
>+  "Etc/GMT+11",
>+  "Etc/GMT+12",
>+  "Etc/GMT+2",
>+  "Etc/GMT+3",
>+  "Etc/GMT+4",
>+  "Etc/GMT+5",
>+  "Etc/GMT+6",
>+  "Etc/GMT+7",
>+  "Etc/GMT+8",
>+  "Etc/GMT+9",
>+  "Etc/GMT-0",
>+  "Etc/GMT-1",
>+  "Etc/GMT-10",
>+  "Etc/GMT-11",
>+  "Etc/GMT-12",
>+  "Etc/GMT-13",
>+  "Etc/GMT-14",
>+  "Etc/GMT-2",
>+  "Etc/GMT-3",
>+  "Etc/GMT-4",
>+  "Etc/GMT-5",
>+  "Etc/GMT-6",
>+  "Etc/GMT-7",
>+  "Etc/GMT-8",
>+  "Etc/GMT-9",
>+  "Etc/GMT0",
>+  "Etc/Greenwich",
>+  "Etc/UCT",
>+  "Etc/UTC",
>+  "Etc/Universal",
>+  "Etc/Zulu",
>+  "Europe/Amsterdam",
>+  "Europe/Andorra",
>+  "Europe/Astrakhan",
>+  "Europe/Athens",
>+  "Europe/Belfast",
>+  "Europe/Belgrade",
>+  "Europe/Berlin",
>+  "Europe/Bratislava",
>+  "Europe/Brussels",
>+  "Europe/Bucharest",
>+  "Europe/Budapest",
>+  "Europe/Busingen",
>+  "Europe/Chisinau",
>+  "Europe/Copenhagen",
>+  "Europe/Dublin",
>+  "Europe/Gibraltar",
>+  "Europe/Guernsey",
>+  "Europe/Helsinki",
>+  "Europe/Isle_of_Man",
>+  "Europe/Istanbul",
>+  "Europe/Jersey",
>+  "Europe/Kaliningrad",
>+  "Europe/Kiev",
>+  "Europe/Kirov",
>+  "Europe/Lisbon",
>+  "Europe/Ljubljana",
>+  "Europe/London",
>+  "Europe/Luxembourg",
>+  "Europe/Madrid",
>+  "Europe/Malta",
>+  "Europe/Mariehamn",
>+  "Europe/Minsk",
>+  "Europe/Monaco",
>+  "Europe/Moscow",
>+  "Europe/Nicosia",
>+  "Europe/Oslo",
>+  "Europe/Paris",
>+  "Europe/Podgorica",
>+  "Europe/Prague",
>+  "Europe/Riga",
>+  "Europe/Rome",
>+  "Europe/Samara",
>+  "Europe/San_Marino",
>+  "Europe/Sarajevo",
>+  "Europe/Saratov",
>+  "Europe/Simferopol",
>+  "Europe/Skopje",
>+  "Europe/Sofia",
>+  "Europe/Stockholm",
>+  "Europe/Tallinn",
>+  "Europe/Tirane",
>+  "Europe/Tiraspol",
>+  "Europe/Ulyanovsk",
>+  "Europe/Uzhgorod",
>+  "Europe/Vaduz",
>+  "Europe/Vatican",
>+  "Europe/Vienna",
>+  "Europe/Vilnius",
>+  "Europe/Volgograd",
>+  "Europe/Warsaw",
>+  "Europe/Zagreb",
>+  "Europe/Zaporozhye",
>+  "Europe/Zurich",
>+  "GB",
>+  "GB-Eire",
>+  "GMT",
>+  "GMT+0",
>+  "GMT-0",
>+  "GMT0",
>+  "Greenwich",
>+  "HST",
>+  "Hongkong",
>+  "Iceland",
>+  "Indian/Antananarivo",
>+  "Indian/Chagos",
>+  "Indian/Christmas",
>+  "Indian/Cocos",
>+  "Indian/Comoro",
>+  "Indian/Kerguelen",
>+  "Indian/Mahe",
>+  "Indian/Maldives",
>+  "Indian/Mauritius",
>+  "Indian/Mayotte",
>+  "Indian/Reunion",
>+  "Iran",
>+  "Israel",
>+  "Jamaica",
>+  "Japan",
>+  "Kwajalein",
>+  "Libya",
>+  "MET",
>+  "MST",
>+  "MST7MDT",
>+  "Mexico/BajaNorte",
>+  "Mexico/BajaSur",
>+  "Mexico/General",
>+  "NZ",
>+  "NZ-CHAT",
>+  "Navajo",
>+  "PRC",
>+  "PST8PDT",
>+  "Pacific/Apia",
>+  "Pacific/Auckland",
>+  "Pacific/Bougainville",
>+  "Pacific/Chatham",
>+  "Pacific/Chuuk",
>+  "Pacific/Easter",
>+  "Pacific/Efate",
>+  "Pacific/Enderbury",
>+  "Pacific/Fakaofo",
>+  "Pacific/Fiji",
>+  "Pacific/Funafuti",
>+  "Pacific/Galapagos",
>+  "Pacific/Gambier",
>+  "Pacific/Guadalcanal",
>+  "Pacific/Guam",
>+  "Pacific/Honolulu",
>+  "Pacific/Johnston",
>+  "Pacific/Kiritimati",
>+  "Pacific/Kosrae",
>+  "Pacific/Kwajalein",
>+  "Pacific/Majuro",
>+  "Pacific/Marquesas",
>+  "Pacific/Midway",
>+  "Pacific/Nauru",
>+  "Pacific/Niue",
>+  "Pacific/Norfolk",
>+  "Pacific/Noumea",
>+  "Pacific/Pago_Pago",
>+  "Pacific/Palau",
>+  "Pacific/Pitcairn",
>+  "Pacific/Pohnpei",
>+  "Pacific/Ponape",
>+  "Pacific/Port_Moresby",
>+  "Pacific/Rarotonga",
>+  "Pacific/Saipan",
>+  "Pacific/Samoa",
>+  "Pacific/Tahiti",
>+  "Pacific/Tarawa",
>+  "Pacific/Tongatapu",
>+  "Pacific/Truk",
>+  "Pacific/Wake",
>+  "Pacific/Wallis",
>+  "Pacific/Yap",
>+  "Poland",
>+  "Portugal",
>+  "ROC",
>+  "ROK",
>+  "Singapore",
>+  "Turkey",
>+  "UCT",
>+  "US/Alaska",
>+  "US/Aleutian",
>+  "US/Arizona",
>+  "US/Central",
>+  "US/East-Indiana",
>+  "US/Eastern",
>+  "US/Hawaii",
>+  "US/Indiana-Starke",
>+  "US/Michigan",
>+  "US/Mountain",
>+  "US/Pacific",
>+  "US/Samoa",
>+  "UTC",
>+  "Universal",
>+  "W-SU",
>+  "WET",
>+  "Zulu",
>+  nullptr
>+};
>+
>+std::vector<std::string> AllTimeZoneNames() {
>+  std::vector<std::string> names;
>+  for (const char* const* namep = kTimeZoneNames; *namep != nullptr; ++namep) {
>+    names.push_back(std::string("file:") + *namep);
>+  }
>+  assert(!names.empty());
>+
>+  std::mt19937 urbg(42);  // a UniformRandomBitGenerator with fixed seed
>+  std::shuffle(names.begin(), names.end(), urbg);
>+  return names;
>+}
>+
>+cctz::time_zone TestTimeZone() {
>+  cctz::time_zone tz;
>+  cctz::load_time_zone("America/Los_Angeles", &tz);
>+  return tz;
>+}
>+
>+void BM_Zone_LoadUTCTimeZoneFirst(benchmark::State& state) {
>+  cctz::time_zone tz;
>+  cctz::load_time_zone("UTC", &tz);  // in case we're first
>+  cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadUTCTimeZoneFirst);
>+
>+void BM_Zone_LoadUTCTimeZoneLast(benchmark::State& state) {
>+  cctz::time_zone tz;
>+  for (const auto& name : AllTimeZoneNames()) {
>+    cctz::load_time_zone(name, &tz);  // prime cache
>+  }
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadUTCTimeZoneLast);
>+
>+void BM_Zone_LoadTimeZoneFirst(benchmark::State& state) {
>+  cctz::time_zone tz = cctz::utc_time_zone();  // in case we're first
>+  const std::string name = "file:America/Los_Angeles";
>+  while (state.KeepRunning()) {
>+    state.PauseTiming();
>+    cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
>+    state.ResumeTiming();
>+    benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadTimeZoneFirst);
>+
>+void BM_Zone_LoadTimeZoneCached(benchmark::State& state) {
>+  cctz::time_zone tz = cctz::utc_time_zone();  // in case we're first
>+  cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
>+  const std::string name = "file:America/Los_Angeles";
>+  cctz::load_time_zone(name, &tz);  // prime cache
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadTimeZoneCached);
>+
>+void BM_Zone_LoadLocalTimeZoneCached(benchmark::State& state) {
>+  cctz::utc_time_zone();  // in case we're first
>+  cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
>+  cctz::local_time_zone();  // prime cache
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::local_time_zone());
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadLocalTimeZoneCached);
>+
>+void BM_Zone_LoadAllTimeZonesFirst(benchmark::State& state) {
>+  cctz::time_zone tz;
>+  const std::vector<std::string> names = AllTimeZoneNames();
>+  for (auto index = names.size(); state.KeepRunning(); ++index) {
>+    if (index == names.size()) {
>+      index = 0;
>+    }
>+    if (index == 0) {
>+      state.PauseTiming();
>+      cctz::time_zone::Impl::ClearTimeZoneMapTestOnly();
>+      state.ResumeTiming();
>+    }
>+    benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadAllTimeZonesFirst);
>+
>+void BM_Zone_LoadAllTimeZonesCached(benchmark::State& state) {
>+  cctz::time_zone tz;
>+  const std::vector<std::string> names = AllTimeZoneNames();
>+  for (const auto& name : names) {
>+    cctz::load_time_zone(name, &tz);  // prime cache
>+  }
>+  for (auto index = names.size(); state.KeepRunning(); ++index) {
>+    if (index == names.size()) {
>+      index = 0;
>+    }
>+    benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz));
>+  }
>+}
>+BENCHMARK(BM_Zone_LoadAllTimeZonesCached);
>+
>+void BM_Zone_TimeZoneEqualityImplicit(benchmark::State& state) {
>+  cctz::time_zone tz;  // implicit UTC
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(tz == tz);
>+  }
>+}
>+BENCHMARK(BM_Zone_TimeZoneEqualityImplicit);
>+
>+void BM_Zone_TimeZoneEqualityExplicit(benchmark::State& state) {
>+  cctz::time_zone tz = cctz::utc_time_zone();  // explicit UTC
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(tz == tz);
>+  }
>+}
>+BENCHMARK(BM_Zone_TimeZoneEqualityExplicit);
>+
>+void BM_Zone_UTCTimeZone(benchmark::State& state) {
>+  cctz::time_zone tz;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::utc_time_zone());
>+  }
>+}
>+BENCHMARK(BM_Zone_UTCTimeZone);
>+
>+// In each "ToDateTime" benchmark we switch between two instants
>+// separated by at least one transition in order to defeat any
>+// internal caching of previous results (e.g., see local_time_hint_).
>+//
>+// The "UTC" variants use UTC instead of the Google/local time zone.
>+
>+void BM_Time_ToDateTime_CCTZ(benchmark::State& state) {
>+  const cctz::time_zone tz = TestTimeZone();
>+  std::chrono::system_clock::time_point tp =
>+      std::chrono::system_clock::from_time_t(1384569027);
>+  std::chrono::system_clock::time_point tp2 =
>+      std::chrono::system_clock::from_time_t(1418962578);
>+  while (state.KeepRunning()) {
>+    std::swap(tp, tp2);
>+    tp += std::chrono::seconds(1);
>+    benchmark::DoNotOptimize(cctz::convert(tp, tz));
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTime_CCTZ);
>+
>+void BM_Time_ToDateTime_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  time_t t = 1384569027;
>+  time_t t2 = 1418962578;
>+  struct tm tm;
>+  while (state.KeepRunning()) {
>+    std::swap(t, t2);
>+    t += 1;
>+#if defined(_WIN32) || defined(_WIN64)
>+    benchmark::DoNotOptimize(localtime_s(&tm, &t));
>+#else
>+    benchmark::DoNotOptimize(localtime_r(&t, &tm));
>+#endif
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTime_Libc);
>+
>+void BM_Time_ToDateTimeUTC_CCTZ(benchmark::State& state) {
>+  const cctz::time_zone tz = cctz::utc_time_zone();
>+  std::chrono::system_clock::time_point tp =
>+      std::chrono::system_clock::from_time_t(1384569027);
>+  while (state.KeepRunning()) {
>+    tp += std::chrono::seconds(1);
>+    benchmark::DoNotOptimize(cctz::convert(tp, tz));
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTimeUTC_CCTZ);
>+
>+void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
>+  time_t t = 1384569027;
>+  struct tm tm;
>+  while (state.KeepRunning()) {
>+    t += 1;
>+#if defined(_WIN32) || defined(_WIN64)
>+    benchmark::DoNotOptimize(gmtime_s(&tm, &t));
>+#else
>+    benchmark::DoNotOptimize(gmtime_r(&t, &tm));
>+#endif
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTimeUTC_Libc);
>+
>+// In each "FromDateTime" benchmark we switch between two YMDhms
>+// values separated by at least one transition in order to defeat any
>+// internal caching of previous results (e.g., see time_local_hint_).
>+//
>+// The "UTC" variants use UTC instead of the Google/local time zone.
>+// The "Day0" variants require normalization of the day of month.
>+
>+void BM_Time_FromDateTime_CCTZ(benchmark::State& state) {
>+  const cctz::time_zone tz = TestTimeZone();
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    if ((i++ & 1) == 0) {
>+      benchmark::DoNotOptimize(
>+          cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz));
>+    } else {
>+      benchmark::DoNotOptimize(
>+          cctz::convert(cctz::civil_second(2013, 11, 15, 18, 30, 27), tz));
>+    }
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTime_CCTZ);
>+
>+void BM_Time_FromDateTime_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    struct tm tm;
>+    if ((i++ & 1) == 0) {
>+      tm.tm_year = 2014 - 1900;
>+      tm.tm_mon = 12 - 1;
>+      tm.tm_mday = 18;
>+      tm.tm_hour = 20;
>+      tm.tm_min = 16;
>+      tm.tm_sec = 18;
>+    } else {
>+      tm.tm_year = 2013 - 1900;
>+      tm.tm_mon = 11 - 1;
>+      tm.tm_mday = 15;
>+      tm.tm_hour = 18;
>+      tm.tm_min = 30;
>+      tm.tm_sec = 27;
>+    }
>+    tm.tm_isdst = -1;
>+    benchmark::DoNotOptimize(mktime(&tm));
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTime_Libc);
>+
>+void BM_Time_FromDateTimeUTC_CCTZ(benchmark::State& state) {
>+  const cctz::time_zone tz = cctz::utc_time_zone();
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(
>+        cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz));
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeUTC_CCTZ);
>+
>+// There is no BM_Time_FromDateTimeUTC_Libc.
>+
>+void BM_Time_FromDateTimeDay0_CCTZ(benchmark::State& state) {
>+  const cctz::time_zone tz = TestTimeZone();
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    if ((i++ & 1) == 0) {
>+      benchmark::DoNotOptimize(
>+          cctz::convert(cctz::civil_second(2014, 12, 0, 20, 16, 18), tz));
>+    } else {
>+      benchmark::DoNotOptimize(
>+          cctz::convert(cctz::civil_second(2013, 11, 0, 18, 30, 27), tz));
>+    }
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeDay0_CCTZ);
>+
>+void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    struct tm tm;
>+    if ((i++ & 1) == 0) {
>+      tm.tm_year = 2014 - 1900;
>+      tm.tm_mon = 12 - 1;
>+      tm.tm_mday = 0;
>+      tm.tm_hour = 20;
>+      tm.tm_min = 16;
>+      tm.tm_sec = 18;
>+    } else {
>+      tm.tm_year = 2013 - 1900;
>+      tm.tm_mon = 11 - 1;
>+      tm.tm_mday = 0;
>+      tm.tm_hour = 18;
>+      tm.tm_min = 30;
>+      tm.tm_sec = 27;
>+    }
>+    tm.tm_isdst = -1;
>+    benchmark::DoNotOptimize(mktime(&tm));
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeDay0_Libc);
>+
>+const char* const kFormats[] = {
>+    RFC1123_full,         // 0
>+    RFC1123_no_wday,      // 1
>+    RFC3339_full,         // 2
>+    RFC3339_sec,          // 3
>+    "%Y-%m-%dT%H:%M:%S",  // 4
>+    "%Y-%m-%d",           // 5
>+};
>+const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]);
>+
>+void BM_Format_FormatTime(benchmark::State& state) {
>+  const std::string fmt = kFormats[state.range(0)];
>+  state.SetLabel(fmt);
>+  const cctz::time_zone tz = TestTimeZone();
>+  const std::chrono::system_clock::time_point tp =
>+      cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
>+      std::chrono::microseconds(1);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::format(fmt, tp, tz));
>+  }
>+}
>+BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1);
>+
>+void BM_Format_ParseTime(benchmark::State& state) {
>+  const std::string fmt = kFormats[state.range(0)];
>+  state.SetLabel(fmt);
>+  const cctz::time_zone tz = TestTimeZone();
>+  std::chrono::system_clock::time_point tp =
>+      cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) +
>+      std::chrono::microseconds(1);
>+  const std::string when = cctz::format(fmt, tp, tz);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(cctz::parse(fmt, when, tz, &tp));
>+  }
>+}
>+BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_detail.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_detail.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..780d5c96e8bfe3df0fa8f20ceb5424bb5fef7ab5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_detail.cc
>@@ -0,0 +1,90 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time_detail.h"
>+
>+#include <iomanip>
>+#include <ostream>
>+#include <sstream>
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+namespace detail {
>+
>+// Output stream operators output a format matching YYYY-MM-DDThh:mm:ss,
>+// while omitting fields inferior to the type's alignment. For example,
>+// civil_day is formatted only as YYYY-MM-DD.
>+std::ostream& operator<<(std::ostream& os, const civil_year& y) {
>+  std::stringstream ss;
>+  ss << y.year();  // No padding.
>+  return os << ss.str();
>+}
>+std::ostream& operator<<(std::ostream& os, const civil_month& m) {
>+  std::stringstream ss;
>+  ss << civil_year(m) << '-';
>+  ss << std::setfill('0') << std::setw(2) << m.month();
>+  return os << ss.str();
>+}
>+std::ostream& operator<<(std::ostream& os, const civil_day& d) {
>+  std::stringstream ss;
>+  ss << civil_month(d) << '-';
>+  ss << std::setfill('0') << std::setw(2) << d.day();
>+  return os << ss.str();
>+}
>+std::ostream& operator<<(std::ostream& os, const civil_hour& h) {
>+  std::stringstream ss;
>+  ss << civil_day(h) << 'T';
>+  ss << std::setfill('0') << std::setw(2) << h.hour();
>+  return os << ss.str();
>+}
>+std::ostream& operator<<(std::ostream& os, const civil_minute& m) {
>+  std::stringstream ss;
>+  ss << civil_hour(m) << ':';
>+  ss << std::setfill('0') << std::setw(2) << m.minute();
>+  return os << ss.str();
>+}
>+std::ostream& operator<<(std::ostream& os, const civil_second& s) {
>+  std::stringstream ss;
>+  ss << civil_minute(s) << ':';
>+  ss << std::setfill('0') << std::setw(2) << s.second();
>+  return os << ss.str();
>+}
>+
>+////////////////////////////////////////////////////////////////////////
>+
>+std::ostream& operator<<(std::ostream& os, weekday wd) {
>+  switch (wd) {
>+    case weekday::monday:
>+      return os << "Monday";
>+    case weekday::tuesday:
>+      return os << "Tuesday";
>+    case weekday::wednesday:
>+      return os << "Wednesday";
>+    case weekday::thursday:
>+      return os << "Thursday";
>+    case weekday::friday:
>+      return os << "Friday";
>+    case weekday::saturday:
>+      return os << "Saturday";
>+    case weekday::sunday:
>+      return os << "Sunday";
>+  }
>+  return os;  // Should never get here, but -Wreturn-type may warn without this.
>+}
>+
>+}  // namespace detail
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f6648c8f1f21f3207aba1b5e4bb066061b064b65
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_test.cc
>@@ -0,0 +1,1049 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+
>+#include <iomanip>
>+#include <limits>
>+#include <sstream>
>+#include <string>
>+#include <type_traits>
>+
>+#include "gtest/gtest.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+template <typename T>
>+std::string Format(const T& t) {
>+  std::stringstream ss;
>+  ss << t;
>+  return ss.str();
>+}
>+
>+}  // namespace
>+
>+#if __cpp_constexpr >= 201304 || _MSC_VER >= 1910
>+// Construction constexpr tests
>+
>+TEST(CivilTime, Normal) {
>+  constexpr civil_second css(2016, 1, 28, 17, 14, 12);
>+  static_assert(css.second() == 12, "Normal.second");
>+  constexpr civil_minute cmm(2016, 1, 28, 17, 14);
>+  static_assert(cmm.minute() == 14, "Normal.minute");
>+  constexpr civil_hour chh(2016, 1, 28, 17);
>+  static_assert(chh.hour() == 17, "Normal.hour");
>+  constexpr civil_day cd(2016, 1, 28);
>+  static_assert(cd.day() == 28, "Normal.day");
>+  constexpr civil_month cm(2016, 1);
>+  static_assert(cm.month() == 1, "Normal.month");
>+  constexpr civil_year cy(2016);
>+  static_assert(cy.year() == 2016, "Normal.year");
>+}
>+
>+TEST(CivilTime, Conversion) {
>+  constexpr civil_year cy(2016);
>+  static_assert(cy.year() == 2016, "Conversion.year");
>+  constexpr civil_month cm(cy);
>+  static_assert(cm.month() == 1, "Conversion.month");
>+  constexpr civil_day cd(cm);
>+  static_assert(cd.day() == 1, "Conversion.day");
>+  constexpr civil_hour chh(cd);
>+  static_assert(chh.hour() == 0, "Conversion.hour");
>+  constexpr civil_minute cmm(chh);
>+  static_assert(cmm.minute() == 0, "Conversion.minute");
>+  constexpr civil_second css(cmm);
>+  static_assert(css.second() == 0, "Conversion.second");
>+}
>+
>+// Normalization constexpr tests
>+
>+TEST(CivilTime, Normalized) {
>+  constexpr civil_second cs(2016, 1, 28, 17, 14, 12);
>+  static_assert(cs.year() == 2016, "Normalized.year");
>+  static_assert(cs.month() == 1, "Normalized.month");
>+  static_assert(cs.day() == 28, "Normalized.day");
>+  static_assert(cs.hour() == 17, "Normalized.hour");
>+  static_assert(cs.minute() == 14, "Normalized.minute");
>+  static_assert(cs.second() == 12, "Normalized.second");
>+}
>+
>+TEST(CivilTime, SecondOverflow) {
>+  constexpr civil_second cs(2016, 1, 28, 17, 14, 121);
>+  static_assert(cs.year() == 2016, "SecondOverflow.year");
>+  static_assert(cs.month() == 1, "SecondOverflow.month");
>+  static_assert(cs.day() == 28, "SecondOverflow.day");
>+  static_assert(cs.hour() == 17, "SecondOverflow.hour");
>+  static_assert(cs.minute() == 16, "SecondOverflow.minute");
>+  static_assert(cs.second() == 1, "SecondOverflow.second");
>+}
>+
>+TEST(CivilTime, SecondUnderflow) {
>+  constexpr civil_second cs(2016, 1, 28, 17, 14, -121);
>+  static_assert(cs.year() == 2016, "SecondUnderflow.year");
>+  static_assert(cs.month() == 1, "SecondUnderflow.month");
>+  static_assert(cs.day() == 28, "SecondUnderflow.day");
>+  static_assert(cs.hour() == 17, "SecondUnderflow.hour");
>+  static_assert(cs.minute() == 11, "SecondUnderflow.minute");
>+  static_assert(cs.second() == 59, "SecondUnderflow.second");
>+}
>+
>+TEST(CivilTime, MinuteOverflow) {
>+  constexpr civil_second cs(2016, 1, 28, 17, 121, 12);
>+  static_assert(cs.year() == 2016, "MinuteOverflow.year");
>+  static_assert(cs.month() == 1, "MinuteOverflow.month");
>+  static_assert(cs.day() == 28, "MinuteOverflow.day");
>+  static_assert(cs.hour() == 19, "MinuteOverflow.hour");
>+  static_assert(cs.minute() == 1, "MinuteOverflow.minute");
>+  static_assert(cs.second() == 12, "MinuteOverflow.second");
>+}
>+
>+TEST(CivilTime, MinuteUnderflow) {
>+  constexpr civil_second cs(2016, 1, 28, 17, -121, 12);
>+  static_assert(cs.year() == 2016, "MinuteUnderflow.year");
>+  static_assert(cs.month() == 1, "MinuteUnderflow.month");
>+  static_assert(cs.day() == 28, "MinuteUnderflow.day");
>+  static_assert(cs.hour() == 14, "MinuteUnderflow.hour");
>+  static_assert(cs.minute() == 59, "MinuteUnderflow.minute");
>+  static_assert(cs.second() == 12, "MinuteUnderflow.second");
>+}
>+
>+TEST(CivilTime, HourOverflow) {
>+  constexpr civil_second cs(2016, 1, 28, 49, 14, 12);
>+  static_assert(cs.year() == 2016, "HourOverflow.year");
>+  static_assert(cs.month() == 1, "HourOverflow.month");
>+  static_assert(cs.day() == 30, "HourOverflow.day");
>+  static_assert(cs.hour() == 1, "HourOverflow.hour");
>+  static_assert(cs.minute() == 14, "HourOverflow.minute");
>+  static_assert(cs.second() == 12, "HourOverflow.second");
>+}
>+
>+TEST(CivilTime, HourUnderflow) {
>+  constexpr civil_second cs(2016, 1, 28, -49, 14, 12);
>+  static_assert(cs.year() == 2016, "HourUnderflow.year");
>+  static_assert(cs.month() == 1, "HourUnderflow.month");
>+  static_assert(cs.day() == 25, "HourUnderflow.day");
>+  static_assert(cs.hour() == 23, "HourUnderflow.hour");
>+  static_assert(cs.minute() == 14, "HourUnderflow.minute");
>+  static_assert(cs.second() == 12, "HourUnderflow.second");
>+}
>+
>+TEST(CivilTime, MonthOverflow) {
>+  constexpr civil_second cs(2016, 25, 28, 17, 14, 12);
>+  static_assert(cs.year() == 2018, "MonthOverflow.year");
>+  static_assert(cs.month() == 1, "MonthOverflow.month");
>+  static_assert(cs.day() == 28, "MonthOverflow.day");
>+  static_assert(cs.hour() == 17, "MonthOverflow.hour");
>+  static_assert(cs.minute() == 14, "MonthOverflow.minute");
>+  static_assert(cs.second() == 12, "MonthOverflow.second");
>+}
>+
>+TEST(CivilTime, MonthUnderflow) {
>+  constexpr civil_second cs(2016, -25, 28, 17, 14, 12);
>+  static_assert(cs.year() == 2013, "MonthUnderflow.year");
>+  static_assert(cs.month() == 11, "MonthUnderflow.month");
>+  static_assert(cs.day() == 28, "MonthUnderflow.day");
>+  static_assert(cs.hour() == 17, "MonthUnderflow.hour");
>+  static_assert(cs.minute() == 14, "MonthUnderflow.minute");
>+  static_assert(cs.second() == 12, "MonthUnderflow.second");
>+}
>+
>+TEST(CivilTime, C4Overflow) {
>+  constexpr civil_second cs(2016, 1, 292195, 17, 14, 12);
>+  static_assert(cs.year() == 2816, "C4Overflow.year");
>+  static_assert(cs.month() == 1, "C4Overflow.month");
>+  static_assert(cs.day() == 1, "C4Overflow.day");
>+  static_assert(cs.hour() == 17, "C4Overflow.hour");
>+  static_assert(cs.minute() == 14, "C4Overflow.minute");
>+  static_assert(cs.second() == 12, "C4Overflow.second");
>+}
>+
>+TEST(CivilTime, C4Underflow) {
>+  constexpr civil_second cs(2016, 1, -292195, 17, 14, 12);
>+  static_assert(cs.year() == 1215, "C4Underflow.year");
>+  static_assert(cs.month() == 12, "C4Underflow.month");
>+  static_assert(cs.day() == 30, "C4Underflow.day");
>+  static_assert(cs.hour() == 17, "C4Underflow.hour");
>+  static_assert(cs.minute() == 14, "C4Underflow.minute");
>+  static_assert(cs.second() == 12, "C4Underflow.second");
>+}
>+
>+TEST(CivilTime, MixedNormalization) {
>+  constexpr civil_second cs(2016, -42, 122, 99, -147, 4949);
>+  static_assert(cs.year() == 2012, "MixedNormalization.year");
>+  static_assert(cs.month() == 10, "MixedNormalization.month");
>+  static_assert(cs.day() == 4, "MixedNormalization.day");
>+  static_assert(cs.hour() == 1, "MixedNormalization.hour");
>+  static_assert(cs.minute() == 55, "MixedNormalization.minute");
>+  static_assert(cs.second() == 29, "MixedNormalization.second");
>+}
>+
>+// Relational constexpr tests
>+
>+TEST(CivilTime, Less) {
>+  constexpr civil_second cs1(2016, 1, 28, 17, 14, 12);
>+  constexpr civil_second cs2(2016, 1, 28, 17, 14, 13);
>+  constexpr bool less = cs1 < cs2;
>+  static_assert(less, "Less");
>+}
>+
>+// Arithmetic constexpr tests
>+
>+TEST(CivilTime, Addition) {
>+  constexpr civil_second cs1(2016, 1, 28, 17, 14, 12);
>+  constexpr civil_second cs2 = cs1 + 50;
>+  static_assert(cs2.year() == 2016, "Addition.year");
>+  static_assert(cs2.month() == 1, "Addition.month");
>+  static_assert(cs2.day() == 28, "Addition.day");
>+  static_assert(cs2.hour() == 17, "Addition.hour");
>+  static_assert(cs2.minute() == 15, "Addition.minute");
>+  static_assert(cs2.second() == 2, "Addition.second");
>+}
>+
>+TEST(CivilTime, Subtraction) {
>+  constexpr civil_second cs1(2016, 1, 28, 17, 14, 12);
>+  constexpr civil_second cs2 = cs1 - 50;
>+  static_assert(cs2.year() == 2016, "Subtraction.year");
>+  static_assert(cs2.month() == 1, "Subtraction.month");
>+  static_assert(cs2.day() == 28, "Subtraction.day");
>+  static_assert(cs2.hour() == 17, "Subtraction.hour");
>+  static_assert(cs2.minute() == 13, "Subtraction.minute");
>+  static_assert(cs2.second() == 22, "Subtraction.second");
>+}
>+
>+TEST(CivilTime, Difference) {
>+  constexpr civil_day cd1(2016, 1, 28);
>+  constexpr civil_day cd2(2015, 1, 28);
>+  constexpr int diff = cd1 - cd2;
>+  static_assert(diff == 365, "Difference");
>+}
>+
>+// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
>+TEST(CivilTime, DifferenceWithHugeYear) {
>+  {
>+    constexpr civil_day d1(9223372036854775807, 1, 1);
>+    constexpr civil_day d2(9223372036854775807, 12, 31);
>+    static_assert(d2 - d1 == 364, "DifferenceWithHugeYear");
>+  }
>+  {
>+    constexpr civil_day d1(-9223372036854775807 - 1, 1, 1);
>+    constexpr civil_day d2(-9223372036854775807 - 1, 12, 31);
>+    static_assert(d2 - d1 == 365, "DifferenceWithHugeYear");
>+  }
>+  {
>+    // Check the limits of the return value at the end of the year range.
>+    constexpr civil_day d1(9223372036854775807, 1, 1);
>+    constexpr civil_day d2(9198119301927009252, 6, 6);
>+    static_assert(d1 - d2 == 9223372036854775807, "DifferenceWithHugeYear");
>+    static_assert((d2 - 1) - d1 == -9223372036854775807 - 1,
>+                  "DifferenceWithHugeYear");
>+  }
>+  {
>+    // Check the limits of the return value at the start of the year range.
>+    constexpr civil_day d1(-9223372036854775807 - 1, 1, 1);
>+    constexpr civil_day d2(-9198119301927009254, 7, 28);
>+    static_assert(d2 - d1 == 9223372036854775807, "DifferenceWithHugeYear");
>+    static_assert(d1 - (d2 + 1) == -9223372036854775807 - 1,
>+                  "DifferenceWithHugeYear");
>+  }
>+  {
>+    // Check the limits of the return value from either side of year 0.
>+    constexpr civil_day d1(-12626367463883278, 9, 3);
>+    constexpr civil_day d2(12626367463883277, 3, 28);
>+    static_assert(d2 - d1 == 9223372036854775807, "DifferenceWithHugeYear");
>+    static_assert(d1 - (d2 + 1) == -9223372036854775807 - 1,
>+                  "DifferenceWithHugeYear");
>+  }
>+}
>+
>+// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
>+TEST(CivilTime, DifferenceNoIntermediateOverflow) {
>+  {
>+    // The difference up to the minute field would be below the minimum
>+    // diff_t, but the 52 extra seconds brings us back to the minimum.
>+    constexpr civil_second s1(-292277022657, 1, 27, 8, 29 - 1, 52);
>+    constexpr civil_second s2(1970, 1, 1, 0, 0 - 1, 0);
>+    static_assert(s1 - s2 == -9223372036854775807 - 1,
>+                  "DifferenceNoIntermediateOverflow");
>+  }
>+  {
>+    // The difference up to the minute field would be above the maximum
>+    // diff_t, but the -53 extra seconds brings us back to the maximum.
>+    constexpr civil_second s1(292277026596, 12, 4, 15, 30, 7 - 7);
>+    constexpr civil_second s2(1970, 1, 1, 0, 0, 0 - 7);
>+    static_assert(s1 - s2 == 9223372036854775807,
>+                  "DifferenceNoIntermediateOverflow");
>+  }
>+}
>+
>+// Helper constexpr tests
>+
>+TEST(CivilTime, WeekDay) {
>+  constexpr civil_day cd(2016, 1, 28);
>+  constexpr weekday wd = get_weekday(cd);
>+  static_assert(wd == weekday::thursday, "Weekday");
>+}
>+
>+TEST(CivilTime, NextWeekDay) {
>+  constexpr civil_day cd(2016, 1, 28);
>+  constexpr civil_day next = next_weekday(cd, weekday::thursday);
>+  static_assert(next.year() == 2016, "NextWeekDay.year");
>+  static_assert(next.month() == 2, "NextWeekDay.month");
>+  static_assert(next.day() == 4, "NextWeekDay.day");
>+}
>+
>+TEST(CivilTime, PrevWeekDay) {
>+  constexpr civil_day cd(2016, 1, 28);
>+  constexpr civil_day prev = prev_weekday(cd, weekday::thursday);
>+  static_assert(prev.year() == 2016, "PrevWeekDay.year");
>+  static_assert(prev.month() == 1, "PrevWeekDay.month");
>+  static_assert(prev.day() == 21, "PrevWeekDay.day");
>+}
>+
>+TEST(CivilTime, YearDay) {
>+  constexpr civil_day cd(2016, 1, 28);
>+  constexpr int yd = get_yearday(cd);
>+  static_assert(yd == 28, "YearDay");
>+}
>+#endif  // __cpp_constexpr >= 201304 || _MSC_VER >= 1910
>+
>+// The remaining tests do not use constexpr.
>+
>+TEST(CivilTime, DefaultConstruction) {
>+  civil_second ss;
>+  EXPECT_EQ("1970-01-01T00:00:00", Format(ss));
>+
>+  civil_minute mm;
>+  EXPECT_EQ("1970-01-01T00:00", Format(mm));
>+
>+  civil_hour hh;
>+  EXPECT_EQ("1970-01-01T00", Format(hh));
>+
>+  civil_day d;
>+  EXPECT_EQ("1970-01-01", Format(d));
>+
>+  civil_month m;
>+  EXPECT_EQ("1970-01", Format(m));
>+
>+  civil_year y;
>+  EXPECT_EQ("1970", Format(y));
>+}
>+
>+TEST(CivilTime, StructMember) {
>+  struct S {
>+    civil_day day;
>+  };
>+  S s = {};
>+  EXPECT_EQ(civil_day{}, s.day);
>+}
>+
>+TEST(CivilTime, FieldsConstruction) {
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(civil_second(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015-01-02T03:04:00", Format(civil_second(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015-01-02T03:00:00", Format(civil_second(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015-01-02T00:00:00", Format(civil_second(2015, 1, 2)));
>+  EXPECT_EQ("2015-01-01T00:00:00", Format(civil_second(2015, 1)));
>+  EXPECT_EQ("2015-01-01T00:00:00", Format(civil_second(2015)));
>+
>+  EXPECT_EQ("2015-01-02T03:04", Format(civil_minute(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015-01-02T03:04", Format(civil_minute(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015-01-02T03:00", Format(civil_minute(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015-01-02T00:00", Format(civil_minute(2015, 1, 2)));
>+  EXPECT_EQ("2015-01-01T00:00", Format(civil_minute(2015, 1)));
>+  EXPECT_EQ("2015-01-01T00:00", Format(civil_minute(2015)));
>+
>+  EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015-01-02T00", Format(civil_hour(2015, 1, 2)));
>+  EXPECT_EQ("2015-01-01T00", Format(civil_hour(2015, 1)));
>+  EXPECT_EQ("2015-01-01T00", Format(civil_hour(2015)));
>+
>+  EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2)));
>+  EXPECT_EQ("2015-01-01", Format(civil_day(2015, 1)));
>+  EXPECT_EQ("2015-01-01", Format(civil_day(2015)));
>+
>+  EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2)));
>+  EXPECT_EQ("2015-01", Format(civil_month(2015, 1)));
>+  EXPECT_EQ("2015-01", Format(civil_month(2015)));
>+
>+  EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3, 4, 5)));
>+  EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3, 4)));
>+  EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3)));
>+  EXPECT_EQ("2015", Format(civil_year(2015, 1, 2)));
>+  EXPECT_EQ("2015", Format(civil_year(2015, 1)));
>+  EXPECT_EQ("2015", Format(civil_year(2015)));
>+}
>+
>+TEST(CivilTime, FieldsConstructionLimits) {
>+  const int kIntMax = std::numeric_limits<int>::max();
>+  EXPECT_EQ("2038-01-19T03:14:07",
>+            Format(civil_second(1970, 1, 1, 0, 0, kIntMax)));
>+  EXPECT_EQ("6121-02-11T05:21:07",
>+            Format(civil_second(1970, 1, 1, 0, kIntMax, kIntMax)));
>+  EXPECT_EQ("251104-11-20T12:21:07",
>+            Format(civil_second(1970, 1, 1, kIntMax, kIntMax, kIntMax)));
>+  EXPECT_EQ("6130715-05-30T12:21:07",
>+            Format(civil_second(1970, 1, kIntMax, kIntMax, kIntMax, kIntMax)));
>+  EXPECT_EQ(
>+      "185087685-11-26T12:21:07",
>+      Format(civil_second(1970, kIntMax, kIntMax, kIntMax, kIntMax, kIntMax)));
>+
>+  const int kIntMin = std::numeric_limits<int>::min();
>+  EXPECT_EQ("1901-12-13T20:45:52",
>+            Format(civil_second(1970, 1, 1, 0, 0, kIntMin)));
>+  EXPECT_EQ("-2182-11-20T18:37:52",
>+            Format(civil_second(1970, 1, 1, 0, kIntMin, kIntMin)));
>+  EXPECT_EQ("-247165-02-11T10:37:52",
>+            Format(civil_second(1970, 1, 1, kIntMin, kIntMin, kIntMin)));
>+  EXPECT_EQ("-6126776-08-01T10:37:52",
>+            Format(civil_second(1970, 1, kIntMin, kIntMin, kIntMin, kIntMin)));
>+  EXPECT_EQ(
>+      "-185083747-10-31T10:37:52",
>+      Format(civil_second(1970, kIntMin, kIntMin, kIntMin, kIntMin, kIntMin)));
>+}
>+
>+TEST(CivilTime, ImplicitCrossAlignment) {
>+  civil_year year(2015);
>+  civil_month month = year;
>+  civil_day day = month;
>+  civil_hour hour = day;
>+  civil_minute minute = hour;
>+  civil_second second = minute;
>+
>+  second = year;
>+  EXPECT_EQ(second, year);
>+  second = month;
>+  EXPECT_EQ(second, month);
>+  second = day;
>+  EXPECT_EQ(second, day);
>+  second = hour;
>+  EXPECT_EQ(second, hour);
>+  second = minute;
>+  EXPECT_EQ(second, minute);
>+
>+  minute = year;
>+  EXPECT_EQ(minute, year);
>+  minute = month;
>+  EXPECT_EQ(minute, month);
>+  minute = day;
>+  EXPECT_EQ(minute, day);
>+  minute = hour;
>+  EXPECT_EQ(minute, hour);
>+
>+  hour = year;
>+  EXPECT_EQ(hour, year);
>+  hour = month;
>+  EXPECT_EQ(hour, month);
>+  hour = day;
>+  EXPECT_EQ(hour, day);
>+
>+  day = year;
>+  EXPECT_EQ(day, year);
>+  day = month;
>+  EXPECT_EQ(day, month);
>+
>+  month = year;
>+  EXPECT_EQ(month, year);
>+
>+  // Ensures unsafe conversions are not allowed.
>+  EXPECT_FALSE((std::is_convertible<civil_second, civil_minute>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_second, civil_hour>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_second, civil_day>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_second, civil_month>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_second, civil_year>::value));
>+
>+  EXPECT_FALSE((std::is_convertible<civil_minute, civil_hour>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_minute, civil_day>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_minute, civil_month>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_minute, civil_year>::value));
>+
>+  EXPECT_FALSE((std::is_convertible<civil_hour, civil_day>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_hour, civil_month>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_hour, civil_year>::value));
>+
>+  EXPECT_FALSE((std::is_convertible<civil_day, civil_month>::value));
>+  EXPECT_FALSE((std::is_convertible<civil_day, civil_year>::value));
>+
>+  EXPECT_FALSE((std::is_convertible<civil_month, civil_year>::value));
>+}
>+
>+TEST(CivilTime, ExplicitCrossAlignment) {
>+  //
>+  // Assign from smaller units -> larger units
>+  //
>+
>+  civil_second second(2015, 1, 2, 3, 4, 5);
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(second));
>+
>+  civil_minute minute(second);
>+  EXPECT_EQ("2015-01-02T03:04", Format(minute));
>+
>+  civil_hour hour(minute);
>+  EXPECT_EQ("2015-01-02T03", Format(hour));
>+
>+  civil_day day(hour);
>+  EXPECT_EQ("2015-01-02", Format(day));
>+
>+  civil_month month(day);
>+  EXPECT_EQ("2015-01", Format(month));
>+
>+  civil_year year(month);
>+  EXPECT_EQ("2015", Format(year));
>+
>+  //
>+  // Now assign from larger units -> smaller units
>+  //
>+
>+  month = civil_month(year);
>+  EXPECT_EQ("2015-01", Format(month));
>+
>+  day = civil_day(month);
>+  EXPECT_EQ("2015-01-01", Format(day));
>+
>+  hour = civil_hour(day);
>+  EXPECT_EQ("2015-01-01T00", Format(hour));
>+
>+  minute = civil_minute(hour);
>+  EXPECT_EQ("2015-01-01T00:00", Format(minute));
>+
>+  second = civil_second(minute);
>+  EXPECT_EQ("2015-01-01T00:00:00", Format(second));
>+}
>+
>+// Metafunction to test whether difference is allowed between two types.
>+template <typename T1, typename T2>
>+struct HasDifference {
>+  template <typename U1, typename U2>
>+  static std::false_type test(...);
>+  template <typename U1, typename U2>
>+  static std::true_type test(decltype(std::declval<U1>() - std::declval<U2>()));
>+  static constexpr bool value = decltype(test<T1, T2>(0))::value;
>+};
>+
>+TEST(CivilTime, DisallowCrossAlignedDifference) {
>+  // Difference is allowed between types with the same alignment.
>+  static_assert(HasDifference<civil_second, civil_second>::value, "");
>+  static_assert(HasDifference<civil_minute, civil_minute>::value, "");
>+  static_assert(HasDifference<civil_hour, civil_hour>::value, "");
>+  static_assert(HasDifference<civil_day, civil_day>::value, "");
>+  static_assert(HasDifference<civil_month, civil_month>::value, "");
>+  static_assert(HasDifference<civil_year, civil_year>::value, "");
>+
>+  // Difference is disallowed between types with different alignments.
>+  static_assert(!HasDifference<civil_second, civil_minute>::value, "");
>+  static_assert(!HasDifference<civil_second, civil_hour>::value, "");
>+  static_assert(!HasDifference<civil_second, civil_day>::value, "");
>+  static_assert(!HasDifference<civil_second, civil_month>::value, "");
>+  static_assert(!HasDifference<civil_second, civil_year>::value, "");
>+
>+  static_assert(!HasDifference<civil_minute, civil_hour>::value, "");
>+  static_assert(!HasDifference<civil_minute, civil_day>::value, "");
>+  static_assert(!HasDifference<civil_minute, civil_month>::value, "");
>+  static_assert(!HasDifference<civil_minute, civil_year>::value, "");
>+
>+  static_assert(!HasDifference<civil_hour, civil_day>::value, "");
>+  static_assert(!HasDifference<civil_hour, civil_month>::value, "");
>+  static_assert(!HasDifference<civil_hour, civil_year>::value, "");
>+
>+  static_assert(!HasDifference<civil_day, civil_month>::value, "");
>+  static_assert(!HasDifference<civil_day, civil_year>::value, "");
>+
>+  static_assert(!HasDifference<civil_month, civil_year>::value, "");
>+}
>+
>+TEST(CivilTime, ValueSemantics) {
>+  const civil_hour a(2015, 1, 2, 3);
>+  const civil_hour b = a;
>+  const civil_hour c(b);
>+  civil_hour d;
>+  d = c;
>+  EXPECT_EQ("2015-01-02T03", Format(d));
>+}
>+
>+TEST(CivilTime, Relational) {
>+  // Tests that the alignment unit is ignored in comparison.
>+  const civil_year year(2014);
>+  const civil_month month(year);
>+  EXPECT_EQ(year, month);
>+
>+#define TEST_RELATIONAL(OLDER, YOUNGER) \
>+  do {                                  \
>+    EXPECT_FALSE(OLDER < OLDER);        \
>+    EXPECT_FALSE(OLDER > OLDER);        \
>+    EXPECT_TRUE(OLDER >= OLDER);        \
>+    EXPECT_TRUE(OLDER <= OLDER);        \
>+    EXPECT_FALSE(YOUNGER < YOUNGER);    \
>+    EXPECT_FALSE(YOUNGER > YOUNGER);    \
>+    EXPECT_TRUE(YOUNGER >= YOUNGER);    \
>+    EXPECT_TRUE(YOUNGER <= YOUNGER);    \
>+    EXPECT_EQ(OLDER, OLDER);            \
>+    EXPECT_NE(OLDER, YOUNGER);          \
>+    EXPECT_LT(OLDER, YOUNGER);          \
>+    EXPECT_LE(OLDER, YOUNGER);          \
>+    EXPECT_GT(YOUNGER, OLDER);          \
>+    EXPECT_GE(YOUNGER, OLDER);          \
>+  } while (0)
>+
>+  // Alignment is ignored in comparison (verified above), so kSecond is used
>+  // to test comparison in all field positions.
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0),
>+                  civil_second(2015, 1, 1, 0, 0, 0));
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0),
>+                  civil_second(2014, 2, 1, 0, 0, 0));
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0),
>+                  civil_second(2014, 1, 2, 0, 0, 0));
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0),
>+                  civil_second(2014, 1, 1, 1, 0, 0));
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 0, 0),
>+                  civil_second(2014, 1, 1, 1, 1, 0));
>+  TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 1, 0),
>+                  civil_second(2014, 1, 1, 1, 1, 1));
>+
>+  // Tests the relational operators of two different CivilTime types.
>+  TEST_RELATIONAL(civil_day(2014, 1, 1), civil_minute(2014, 1, 1, 1, 1));
>+  TEST_RELATIONAL(civil_day(2014, 1, 1), civil_month(2014, 2));
>+
>+#undef TEST_RELATIONAL
>+}
>+
>+TEST(CivilTime, Arithmetic) {
>+  civil_second second(2015, 1, 2, 3, 4, 5);
>+  EXPECT_EQ("2015-01-02T03:04:06", Format(second += 1));
>+  EXPECT_EQ("2015-01-02T03:04:07", Format(second + 1));
>+  EXPECT_EQ("2015-01-02T03:04:08", Format(2 + second));
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(second - 1));
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(second -= 1));
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(second++));
>+  EXPECT_EQ("2015-01-02T03:04:07", Format(++second));
>+  EXPECT_EQ("2015-01-02T03:04:07", Format(second--));
>+  EXPECT_EQ("2015-01-02T03:04:05", Format(--second));
>+
>+  civil_minute minute(2015, 1, 2, 3, 4);
>+  EXPECT_EQ("2015-01-02T03:05", Format(minute += 1));
>+  EXPECT_EQ("2015-01-02T03:06", Format(minute + 1));
>+  EXPECT_EQ("2015-01-02T03:07", Format(2 + minute));
>+  EXPECT_EQ("2015-01-02T03:04", Format(minute - 1));
>+  EXPECT_EQ("2015-01-02T03:04", Format(minute -= 1));
>+  EXPECT_EQ("2015-01-02T03:04", Format(minute++));
>+  EXPECT_EQ("2015-01-02T03:06", Format(++minute));
>+  EXPECT_EQ("2015-01-02T03:06", Format(minute--));
>+  EXPECT_EQ("2015-01-02T03:04", Format(--minute));
>+
>+  civil_hour hour(2015, 1, 2, 3);
>+  EXPECT_EQ("2015-01-02T04", Format(hour += 1));
>+  EXPECT_EQ("2015-01-02T05", Format(hour + 1));
>+  EXPECT_EQ("2015-01-02T06", Format(2 + hour));
>+  EXPECT_EQ("2015-01-02T03", Format(hour - 1));
>+  EXPECT_EQ("2015-01-02T03", Format(hour -= 1));
>+  EXPECT_EQ("2015-01-02T03", Format(hour++));
>+  EXPECT_EQ("2015-01-02T05", Format(++hour));
>+  EXPECT_EQ("2015-01-02T05", Format(hour--));
>+  EXPECT_EQ("2015-01-02T03", Format(--hour));
>+
>+  civil_day day(2015, 1, 2);
>+  EXPECT_EQ("2015-01-03", Format(day += 1));
>+  EXPECT_EQ("2015-01-04", Format(day + 1));
>+  EXPECT_EQ("2015-01-05", Format(2 + day));
>+  EXPECT_EQ("2015-01-02", Format(day - 1));
>+  EXPECT_EQ("2015-01-02", Format(day -= 1));
>+  EXPECT_EQ("2015-01-02", Format(day++));
>+  EXPECT_EQ("2015-01-04", Format(++day));
>+  EXPECT_EQ("2015-01-04", Format(day--));
>+  EXPECT_EQ("2015-01-02", Format(--day));
>+
>+  civil_month month(2015, 1);
>+  EXPECT_EQ("2015-02", Format(month += 1));
>+  EXPECT_EQ("2015-03", Format(month + 1));
>+  EXPECT_EQ("2015-04", Format(2 + month));
>+  EXPECT_EQ("2015-01", Format(month - 1));
>+  EXPECT_EQ("2015-01", Format(month -= 1));
>+  EXPECT_EQ("2015-01", Format(month++));
>+  EXPECT_EQ("2015-03", Format(++month));
>+  EXPECT_EQ("2015-03", Format(month--));
>+  EXPECT_EQ("2015-01", Format(--month));
>+
>+  civil_year year(2015);
>+  EXPECT_EQ("2016", Format(year += 1));
>+  EXPECT_EQ("2017", Format(year + 1));
>+  EXPECT_EQ("2018", Format(2 + year));
>+  EXPECT_EQ("2015", Format(year - 1));
>+  EXPECT_EQ("2015", Format(year -= 1));
>+  EXPECT_EQ("2015", Format(year++));
>+  EXPECT_EQ("2017", Format(++year));
>+  EXPECT_EQ("2017", Format(year--));
>+  EXPECT_EQ("2015", Format(--year));
>+}
>+
>+TEST(CivilTime, ArithmeticLimits) {
>+  const int kIntMax = std::numeric_limits<int>::max();
>+  const int kIntMin = std::numeric_limits<int>::min();
>+
>+  civil_second second(1970, 1, 1, 0, 0, 0);
>+  second += kIntMax;
>+  EXPECT_EQ("2038-01-19T03:14:07", Format(second));
>+  second -= kIntMax;
>+  EXPECT_EQ("1970-01-01T00:00:00", Format(second));
>+  second += kIntMin;
>+  EXPECT_EQ("1901-12-13T20:45:52", Format(second));
>+  second -= kIntMin;
>+  EXPECT_EQ("1970-01-01T00:00:00", Format(second));
>+
>+  civil_minute minute(1970, 1, 1, 0, 0);
>+  minute += kIntMax;
>+  EXPECT_EQ("6053-01-23T02:07", Format(minute));
>+  minute -= kIntMax;
>+  EXPECT_EQ("1970-01-01T00:00", Format(minute));
>+  minute += kIntMin;
>+  EXPECT_EQ("-2114-12-08T21:52", Format(minute));
>+  minute -= kIntMin;
>+  EXPECT_EQ("1970-01-01T00:00", Format(minute));
>+
>+  civil_hour hour(1970, 1, 1, 0);
>+  hour += kIntMax;
>+  EXPECT_EQ("246953-10-09T07", Format(hour));
>+  hour -= kIntMax;
>+  EXPECT_EQ("1970-01-01T00", Format(hour));
>+  hour += kIntMin;
>+  EXPECT_EQ("-243014-03-24T16", Format(hour));
>+  hour -= kIntMin;
>+  EXPECT_EQ("1970-01-01T00", Format(hour));
>+
>+  civil_day day(1970, 1, 1);
>+  day += kIntMax;
>+  EXPECT_EQ("5881580-07-11", Format(day));
>+  day -= kIntMax;
>+  EXPECT_EQ("1970-01-01", Format(day));
>+  day += kIntMin;
>+  EXPECT_EQ("-5877641-06-23", Format(day));
>+  day -= kIntMin;
>+  EXPECT_EQ("1970-01-01", Format(day));
>+
>+  civil_month month(1970, 1);
>+  month += kIntMax;
>+  EXPECT_EQ("178958940-08", Format(month));
>+  month -= kIntMax;
>+  EXPECT_EQ("1970-01", Format(month));
>+  month += kIntMin;
>+  EXPECT_EQ("-178955001-05", Format(month));
>+  month -= kIntMin;
>+  EXPECT_EQ("1970-01", Format(month));
>+
>+  civil_year year(0);
>+  year += kIntMax;
>+  EXPECT_EQ("2147483647", Format(year));
>+  year -= kIntMax;
>+  EXPECT_EQ("0", Format(year));
>+  year += kIntMin;
>+  EXPECT_EQ("-2147483648", Format(year));
>+  year -= kIntMin;
>+  EXPECT_EQ("0", Format(year));
>+}
>+
>+TEST(CivilTime, ArithmeticDifference) {
>+  civil_second second(2015, 1, 2, 3, 4, 5);
>+  EXPECT_EQ(0, second - second);
>+  EXPECT_EQ(10, (second + 10) - second);
>+  EXPECT_EQ(-10, (second - 10) - second);
>+
>+  civil_minute minute(2015, 1, 2, 3, 4);
>+  EXPECT_EQ(0, minute - minute);
>+  EXPECT_EQ(10, (minute + 10) - minute);
>+  EXPECT_EQ(-10, (minute - 10) - minute);
>+
>+  civil_hour hour(2015, 1, 2, 3);
>+  EXPECT_EQ(0, hour - hour);
>+  EXPECT_EQ(10, (hour + 10) - hour);
>+  EXPECT_EQ(-10, (hour - 10) - hour);
>+
>+  civil_day day(2015, 1, 2);
>+  EXPECT_EQ(0, day - day);
>+  EXPECT_EQ(10, (day + 10) - day);
>+  EXPECT_EQ(-10, (day - 10) - day);
>+
>+  civil_month month(2015, 1);
>+  EXPECT_EQ(0, month - month);
>+  EXPECT_EQ(10, (month + 10) - month);
>+  EXPECT_EQ(-10, (month - 10) - month);
>+
>+  civil_year year(2015);
>+  EXPECT_EQ(0, year - year);
>+  EXPECT_EQ(10, (year + 10) - year);
>+  EXPECT_EQ(-10, (year - 10) - year);
>+}
>+
>+TEST(CivilTime, DifferenceLimits) {
>+  const int kIntMax = std::numeric_limits<int>::max();
>+  const int kIntMin = std::numeric_limits<int>::min();
>+
>+  // Check day arithmetic at the end of the year range.
>+  const civil_day max_day(kIntMax, 12, 31);
>+  EXPECT_EQ(1, max_day - (max_day - 1));
>+  EXPECT_EQ(-1, (max_day - 1) - max_day);
>+
>+  // Check day arithmetic at the end of the year range.
>+  const civil_day min_day(kIntMin, 1, 1);
>+  EXPECT_EQ(1, (min_day + 1) - min_day);
>+  EXPECT_EQ(-1, min_day - (min_day + 1));
>+
>+  // Check the limits of the return value.
>+  const civil_day d1(1970, 1, 1);
>+  const civil_day d2(5881580, 7, 11);
>+  EXPECT_EQ(kIntMax, d2 - d1);
>+  EXPECT_EQ(kIntMin, d1 - (d2 + 1));
>+}
>+
>+TEST(CivilTime, Properties) {
>+  civil_second ss(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, ss.year());
>+  EXPECT_EQ(2, ss.month());
>+  EXPECT_EQ(3, ss.day());
>+  EXPECT_EQ(4, ss.hour());
>+  EXPECT_EQ(5, ss.minute());
>+  EXPECT_EQ(6, ss.second());
>+
>+  civil_minute mm(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, mm.year());
>+  EXPECT_EQ(2, mm.month());
>+  EXPECT_EQ(3, mm.day());
>+  EXPECT_EQ(4, mm.hour());
>+  EXPECT_EQ(5, mm.minute());
>+  EXPECT_EQ(0, mm.second());
>+
>+  civil_hour hh(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, hh.year());
>+  EXPECT_EQ(2, hh.month());
>+  EXPECT_EQ(3, hh.day());
>+  EXPECT_EQ(4, hh.hour());
>+  EXPECT_EQ(0, hh.minute());
>+  EXPECT_EQ(0, hh.second());
>+
>+  civil_day d(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, d.year());
>+  EXPECT_EQ(2, d.month());
>+  EXPECT_EQ(3, d.day());
>+  EXPECT_EQ(0, d.hour());
>+  EXPECT_EQ(0, d.minute());
>+  EXPECT_EQ(0, d.second());
>+  EXPECT_EQ(weekday::tuesday, get_weekday(d));
>+  EXPECT_EQ(34, get_yearday(d));
>+
>+  civil_month m(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, m.year());
>+  EXPECT_EQ(2, m.month());
>+  EXPECT_EQ(1, m.day());
>+  EXPECT_EQ(0, m.hour());
>+  EXPECT_EQ(0, m.minute());
>+  EXPECT_EQ(0, m.second());
>+
>+  civil_year y(2015, 2, 3, 4, 5, 6);
>+  EXPECT_EQ(2015, y.year());
>+  EXPECT_EQ(1, y.month());
>+  EXPECT_EQ(1, y.day());
>+  EXPECT_EQ(0, y.hour());
>+  EXPECT_EQ(0, y.minute());
>+  EXPECT_EQ(0, y.second());
>+}
>+
>+TEST(CivilTime, OutputStream) {
>+  // Tests formatting of civil_year, which does not pad.
>+  EXPECT_EQ("2016", Format(civil_year(2016)));
>+  EXPECT_EQ("123", Format(civil_year(123)));
>+  EXPECT_EQ("0", Format(civil_year(0)));
>+  EXPECT_EQ("-1", Format(civil_year(-1)));
>+
>+  // Tests formatting of sub-year types, which pad to 2 digits
>+  EXPECT_EQ("2016-02", Format(civil_month(2016, 2)));
>+  EXPECT_EQ("2016-02-03", Format(civil_day(2016, 2, 3)));
>+  EXPECT_EQ("2016-02-03T04", Format(civil_hour(2016, 2, 3, 4)));
>+  EXPECT_EQ("2016-02-03T04:05", Format(civil_minute(2016, 2, 3, 4, 5)));
>+  EXPECT_EQ("2016-02-03T04:05:06", Format(civil_second(2016, 2, 3, 4, 5, 6)));
>+
>+  // Tests formatting of weekday.
>+  EXPECT_EQ("Monday", Format(weekday::monday));
>+  EXPECT_EQ("Tuesday", Format(weekday::tuesday));
>+  EXPECT_EQ("Wednesday", Format(weekday::wednesday));
>+  EXPECT_EQ("Thursday", Format(weekday::thursday));
>+  EXPECT_EQ("Friday", Format(weekday::friday));
>+  EXPECT_EQ("Saturday", Format(weekday::saturday));
>+  EXPECT_EQ("Sunday", Format(weekday::sunday));
>+}
>+
>+TEST(CivilTime, OutputStreamLeftFillWidth) {
>+  civil_second cs(2016, 2, 3, 4, 5, 6);
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_year(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016.................X..", ss.str());
>+  }
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_month(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016-02..............X..", ss.str());
>+  }
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_day(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016-02-03...........X..", ss.str());
>+  }
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_hour(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016-02-03T04........X..", ss.str());
>+  }
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_minute(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016-02-03T04:05.....X..", ss.str());
>+  }
>+  {
>+    std::stringstream ss;
>+    ss << std::left << std::setfill('.');
>+    ss << std::setw(3) << 'X';
>+    ss << std::setw(21) << civil_second(cs);
>+    ss << std::setw(3) << 'X';
>+    EXPECT_EQ("X..2016-02-03T04:05:06..X..", ss.str());
>+  }
>+}
>+
>+TEST(CivilTime, NextPrevWeekday) {
>+  // Jan 1, 1970 was a Thursday.
>+  const civil_day thursday(1970, 1, 1);
>+  EXPECT_EQ(weekday::thursday, get_weekday(thursday));
>+
>+  // Thursday -> Thursday
>+  civil_day d = next_weekday(thursday, weekday::thursday);
>+  EXPECT_EQ(7, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 14, prev_weekday(thursday, weekday::thursday));
>+
>+  // Thursday -> Friday
>+  d = next_weekday(thursday, weekday::friday);
>+  EXPECT_EQ(1, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::friday));
>+
>+  // Thursday -> Saturday
>+  d = next_weekday(thursday, weekday::saturday);
>+  EXPECT_EQ(2, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::saturday));
>+
>+  // Thursday -> Sunday
>+  d = next_weekday(thursday, weekday::sunday);
>+  EXPECT_EQ(3, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::sunday));
>+
>+  // Thursday -> Monday
>+  d = next_weekday(thursday, weekday::monday);
>+  EXPECT_EQ(4, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::monday));
>+
>+  // Thursday -> Tuesday
>+  d = next_weekday(thursday, weekday::tuesday);
>+  EXPECT_EQ(5, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::tuesday));
>+
>+  // Thursday -> Wednesday
>+  d = next_weekday(thursday, weekday::wednesday);
>+  EXPECT_EQ(6, d - thursday) << Format(d);
>+  EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::wednesday));
>+}
>+
>+TEST(CivilTime, NormalizeWithHugeYear) {
>+  civil_month c(9223372036854775807, 1);
>+  EXPECT_EQ("9223372036854775807-01", Format(c));
>+  c = c - 1;  // Causes normalization
>+  EXPECT_EQ("9223372036854775806-12", Format(c));
>+
>+  c = civil_month(-9223372036854775807 - 1, 1);
>+  EXPECT_EQ("-9223372036854775808-01", Format(c));
>+  c = c + 12;  // Causes normalization
>+  EXPECT_EQ("-9223372036854775807-01", Format(c));
>+}
>+
>+TEST(CivilTime, LeapYears) {
>+  // Test data for leap years.
>+  const struct {
>+    int year;
>+    int days;
>+    struct {
>+      int month;
>+      int day;
>+    } leap_day;  // The date of the day after Feb 28.
>+  } kLeapYearTable[]{
>+      {1900, 365, {3, 1}},
>+      {1999, 365, {3, 1}},
>+      {2000, 366, {2, 29}},  // leap year
>+      {2001, 365, {3, 1}},
>+      {2002, 365, {3, 1}},
>+      {2003, 365, {3, 1}},
>+      {2004, 366, {2, 29}},  // leap year
>+      {2005, 365, {3, 1}},
>+      {2006, 365, {3, 1}},
>+      {2007, 365, {3, 1}},
>+      {2008, 366, {2, 29}},  // leap year
>+      {2009, 365, {3, 1}},
>+      {2100, 365, {3, 1}},
>+  };
>+
>+  for (const auto& e : kLeapYearTable) {
>+    // Tests incrementing through the leap day.
>+    const civil_day feb28(e.year, 2, 28);
>+    const civil_day next_day = feb28 + 1;
>+    EXPECT_EQ(e.leap_day.month, next_day.month());
>+    EXPECT_EQ(e.leap_day.day, next_day.day());
>+
>+    // Tests difference in days of leap years.
>+    const civil_year year(feb28);
>+    const civil_year next_year = year + 1;
>+    EXPECT_EQ(e.days, civil_day(next_year) - civil_day(year));
>+  }
>+}
>+
>+TEST(CivilTime, FirstThursdayInMonth) {
>+  const civil_day nov1(2014, 11, 1);
>+  const civil_day thursday = prev_weekday(nov1, weekday::thursday) + 7;
>+  EXPECT_EQ("2014-11-06", Format(thursday));
>+
>+  // Bonus: Date of Thanksgiving in the United States
>+  // Rule: Fourth Thursday of November
>+  const civil_day thanksgiving = thursday + 7 * 3;
>+  EXPECT_EQ("2014-11-27", Format(thanksgiving));
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..598b08fde42236cf137e0e82d09d9f2c1f1b22f0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.cc
>@@ -0,0 +1,123 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "time_zone_fixed.h"
>+
>+#include <algorithm>
>+#include <chrono>
>+#include <cstdio>
>+#include <cstring>
>+#include <string>
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+// The prefix used for the internal names of fixed-offset zones.
>+const char kFixedOffsetPrefix[] = "Fixed/UTC";
>+
>+int Parse02d(const char* p) {
>+  static const char kDigits[] = "0123456789";
>+  if (const char* ap = std::strchr(kDigits, *p)) {
>+    int v = static_cast<int>(ap - kDigits);
>+    if (const char* bp = std::strchr(kDigits, *++p)) {
>+      return (v * 10) + static_cast<int>(bp - kDigits);
>+    }
>+  }
>+  return -1;
>+}
>+
>+}  // namespace
>+
>+bool FixedOffsetFromName(const std::string& name, seconds* offset) {
>+  if (name.compare(0, std::string::npos, "UTC", 3) == 0) {
>+    *offset = seconds::zero();
>+    return true;
>+  }
>+
>+  const std::size_t prefix_len = sizeof(kFixedOffsetPrefix) - 1;
>+  const char* const ep = kFixedOffsetPrefix + prefix_len;
>+  if (name.size() != prefix_len + 9)  // <prefix>+99:99:99
>+    return false;
>+  if (!std::equal(kFixedOffsetPrefix, ep, name.begin()))
>+    return false;
>+  const char* np = name.data() + prefix_len;
>+  if (np[0] != '+' && np[0] != '-')
>+    return false;
>+  if (np[3] != ':' || np[6] != ':')  // see note below about large offsets
>+    return false;
>+
>+  int hours = Parse02d(np + 1);
>+  if (hours == -1) return false;
>+  int mins = Parse02d(np + 4);
>+  if (mins == -1) return false;
>+  int secs = Parse02d(np + 7);
>+  if (secs == -1) return false;
>+
>+  secs += ((hours * 60) + mins) * 60;
>+  if (secs > 24 * 60 * 60) return false;  // outside supported offset range
>+  *offset = seconds(secs * (np[0] == '-' ? -1 : 1));  // "-" means west
>+  return true;
>+}
>+
>+std::string FixedOffsetToName(const seconds& offset) {
>+  if (offset == seconds::zero()) return "UTC";
>+  if (offset < std::chrono::hours(-24) || offset > std::chrono::hours(24)) {
>+    // We don't support fixed-offset zones more than 24 hours
>+    // away from UTC to avoid complications in rendering such
>+    // offsets and to (somewhat) limit the total number of zones.
>+    return "UTC";
>+  }
>+  int seconds = static_cast<int>(offset.count());
>+  const char sign = (seconds < 0 ? '-' : '+');
>+  int minutes = seconds / 60;
>+  seconds %= 60;
>+  if (sign == '-') {
>+    if (seconds > 0) {
>+      seconds -= 60;
>+      minutes += 1;
>+    }
>+    seconds = -seconds;
>+    minutes = -minutes;
>+  }
>+  int hours = minutes / 60;
>+  minutes %= 60;
>+  char buf[sizeof(kFixedOffsetPrefix) + sizeof("-24:00:00")];
>+  snprintf(buf, sizeof(buf), "%s%c%02d:%02d:%02d",
>+           kFixedOffsetPrefix, sign, hours, minutes, seconds);
>+  return buf;
>+}
>+
>+std::string FixedOffsetToAbbr(const seconds& offset) {
>+  std::string abbr = FixedOffsetToName(offset);
>+  const std::size_t prefix_len = sizeof(kFixedOffsetPrefix) - 1;
>+  if (abbr.size() == prefix_len + 9) {         // <prefix>+99:99:99
>+    abbr.erase(0, prefix_len);                 // +99:99:99
>+    abbr.erase(6, 1);                          // +99:9999
>+    abbr.erase(3, 1);                          // +999999
>+    if (abbr[5] == '0' && abbr[6] == '0') {    // +999900
>+      abbr.erase(5, 2);                        // +9999
>+      if (abbr[3] == '0' && abbr[4] == '0') {  // +9900
>+        abbr.erase(3, 2);                      // +99
>+      }
>+    }
>+  }
>+  return abbr;
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..489b857d5df31f11c1693c107c102d7abe965f7a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.h
>@@ -0,0 +1,49 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
>+
>+#include <string>
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// Helper functions for dealing with the names and abbreviations
>+// of time zones that are a fixed offset (seconds east) from UTC.
>+// FixedOffsetFromName() extracts the offset from a valid fixed-offset
>+// name, while FixedOffsetToName() and FixedOffsetToAbbr() generate
>+// the canonical zone name and abbreviation respectively for the given
>+// offset.
>+//
>+// A fixed-offset name looks like "Fixed/UTC<+-><hours>:<mins>:<secs>".
>+// Its abbreviation is of the form "UTC(<+->H?H(MM(SS)?)?)?" where the
>+// optional pieces are omitted when their values are zero.  (Note that
>+// the sign is the opposite of that used in a POSIX TZ specification.)
>+//
>+// Note: FixedOffsetFromName() fails on syntax errors or when the parsed
>+// offset exceeds 24 hours.  FixedOffsetToName() and FixedOffsetToAbbr()
>+// both produce "UTC" when the argument offset exceeds 24 hours.
>+bool FixedOffsetFromName(const std::string& name, seconds* offset);
>+std::string FixedOffsetToName(const seconds& offset);
>+std::string FixedOffsetToAbbr(const seconds& offset);
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..1b023848efa18e81562d57b3955ac120df855474
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format.cc
>@@ -0,0 +1,851 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#if !defined(HAS_STRPTIME)
>+# if !defined(_MSC_VER)
>+#  define HAS_STRPTIME 1  // assume everyone has strptime() except windows
>+# endif
>+#endif
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+#include <cctype>
>+#include <chrono>
>+#include <cstddef>
>+#include <cstdint>
>+#include <cstring>
>+#include <ctime>
>+#include <limits>
>+#include <string>
>+#include <vector>
>+#if !HAS_STRPTIME
>+#include <iomanip>
>+#include <sstream>
>+#endif
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "time_zone_if.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+namespace detail {
>+
>+namespace {
>+
>+#if !HAS_STRPTIME
>+// Build a strptime() using C++11's std::get_time().
>+char* strptime(const char* s, const char* fmt, std::tm* tm) {
>+  std::istringstream input(s);
>+  input >> std::get_time(tm, fmt);
>+  if (input.fail()) return nullptr;
>+  return const_cast<char*>(s) +
>+         (input.eof() ? strlen(s) : static_cast<std::size_t>(input.tellg()));
>+}
>+#endif
>+
>+std::tm ToTM(const time_zone::absolute_lookup& al) {
>+  std::tm tm{};
>+  tm.tm_sec = al.cs.second();
>+  tm.tm_min = al.cs.minute();
>+  tm.tm_hour = al.cs.hour();
>+  tm.tm_mday = al.cs.day();
>+  tm.tm_mon = al.cs.month() - 1;
>+
>+  // Saturate tm.tm_year is cases of over/underflow.
>+  if (al.cs.year() < std::numeric_limits<int>::min() + 1900) {
>+    tm.tm_year = std::numeric_limits<int>::min();
>+  } else if (al.cs.year() - 1900 > std::numeric_limits<int>::max()) {
>+    tm.tm_year = std::numeric_limits<int>::max();
>+  } else {
>+    tm.tm_year = static_cast<int>(al.cs.year() - 1900);
>+  }
>+
>+  switch (get_weekday(civil_day(al.cs))) {
>+    case weekday::sunday:
>+      tm.tm_wday = 0;
>+      break;
>+    case weekday::monday:
>+      tm.tm_wday = 1;
>+      break;
>+    case weekday::tuesday:
>+      tm.tm_wday = 2;
>+      break;
>+    case weekday::wednesday:
>+      tm.tm_wday = 3;
>+      break;
>+    case weekday::thursday:
>+      tm.tm_wday = 4;
>+      break;
>+    case weekday::friday:
>+      tm.tm_wday = 5;
>+      break;
>+    case weekday::saturday:
>+      tm.tm_wday = 6;
>+      break;
>+  }
>+  tm.tm_yday = get_yearday(civil_day(al.cs)) - 1;
>+  tm.tm_isdst = al.is_dst ? 1 : 0;
>+  return tm;
>+}
>+
>+const char kDigits[] = "0123456789";
>+
>+// Formats a 64-bit integer in the given field width.  Note that it is up
>+// to the caller of Format64() [and Format02d()/FormatOffset()] to ensure
>+// that there is sufficient space before ep to hold the conversion.
>+char* Format64(char* ep, int width, std::int_fast64_t v) {
>+  bool neg = false;
>+  if (v < 0) {
>+    --width;
>+    neg = true;
>+    if (v == std::numeric_limits<std::int_fast64_t>::min()) {
>+      // Avoid negating minimum value.
>+      std::int_fast64_t last_digit = -(v % 10);
>+      v /= 10;
>+      if (last_digit < 0) {
>+        ++v;
>+        last_digit += 10;
>+      }
>+      --width;
>+      *--ep = kDigits[last_digit];
>+    }
>+    v = -v;
>+  }
>+  do {
>+    --width;
>+    *--ep = kDigits[v % 10];
>+  } while (v /= 10);
>+  while (--width >= 0) *--ep = '0';  // zero pad
>+  if (neg) *--ep = '-';
>+  return ep;
>+}
>+
>+// Formats [0 .. 99] as %02d.
>+char* Format02d(char* ep, int v) {
>+  *--ep = kDigits[v % 10];
>+  *--ep = kDigits[(v / 10) % 10];
>+  return ep;
>+}
>+
>+// Formats a UTC offset, like +00:00.
>+char* FormatOffset(char* ep, int offset, const char* mode) {
>+  // TODO: Follow the RFC3339 "Unknown Local Offset Convention" and
>+  // generate a "negative zero" when we're formatting a zero offset
>+  // as the result of a failed load_time_zone().
>+  char sign = '+';
>+  if (offset < 0) {
>+    offset = -offset;  // bounded by 24h so no overflow
>+    sign = '-';
>+  }
>+  char sep = mode[0];
>+  if (sep != '\0' && mode[1] == '*') {
>+    ep = Format02d(ep, offset % 60);
>+    *--ep = sep;
>+  }
>+  int minutes = offset / 60;
>+  ep = Format02d(ep, minutes % 60);
>+  if (sep != '\0') *--ep = sep;
>+  ep = Format02d(ep, minutes / 60);
>+  *--ep = sign;
>+  return ep;
>+}
>+
>+// Formats a std::tm using strftime(3).
>+void FormatTM(std::string* out, const std::string& fmt, const std::tm& tm) {
>+  // strftime(3) returns the number of characters placed in the output
>+  // array (which may be 0 characters).  It also returns 0 to indicate
>+  // an error, like the array wasn't large enough.  To accommodate this,
>+  // the following code grows the buffer size from 2x the format std::string
>+  // length up to 32x.
>+  for (std::size_t i = 2; i != 32; i *= 2) {
>+    std::size_t buf_size = fmt.size() * i;
>+    std::vector<char> buf(buf_size);
>+    if (std::size_t len = strftime(&buf[0], buf_size, fmt.c_str(), &tm)) {
>+      out->append(&buf[0], len);
>+      return;
>+    }
>+  }
>+}
>+
>+// Used for %E#S/%E#f specifiers and for data values in parse().
>+template <typename T>
>+const char* ParseInt(const char* dp, int width, T min, T max, T* vp) {
>+  if (dp != nullptr) {
>+    const T kmin = std::numeric_limits<T>::min();
>+    bool erange = false;
>+    bool neg = false;
>+    T value = 0;
>+    if (*dp == '-') {
>+      neg = true;
>+      if (width <= 0 || --width != 0) {
>+        ++dp;
>+      } else {
>+        dp = nullptr;  // width was 1
>+      }
>+    }
>+    if (const char* const bp = dp) {
>+      while (const char* cp = strchr(kDigits, *dp)) {
>+        int d = static_cast<int>(cp - kDigits);
>+        if (d >= 10) break;
>+        if (value < kmin / 10) {
>+          erange = true;
>+          break;
>+        }
>+        value *= 10;
>+        if (value < kmin + d) {
>+          erange = true;
>+          break;
>+        }
>+        value -= d;
>+        dp += 1;
>+        if (width > 0 && --width == 0) break;
>+      }
>+      if (dp != bp && !erange && (neg || value != kmin)) {
>+        if (!neg || value != 0) {
>+          if (!neg) value = -value;  // make positive
>+          if (min <= value && value <= max) {
>+            *vp = value;
>+          } else {
>+            dp = nullptr;
>+          }
>+        } else {
>+          dp = nullptr;
>+        }
>+      } else {
>+        dp = nullptr;
>+      }
>+    }
>+  }
>+  return dp;
>+}
>+
>+// The number of base-10 digits that can be represented by a signed 64-bit
>+// integer.  That is, 10^kDigits10_64 <= 2^63 - 1 < 10^(kDigits10_64 + 1).
>+const int kDigits10_64 = 18;
>+
>+// 10^n for everything that can be represented by a signed 64-bit integer.
>+const std::int_fast64_t kExp10[kDigits10_64 + 1] = {
>+    1,
>+    10,
>+    100,
>+    1000,
>+    10000,
>+    100000,
>+    1000000,
>+    10000000,
>+    100000000,
>+    1000000000,
>+    10000000000,
>+    100000000000,
>+    1000000000000,
>+    10000000000000,
>+    100000000000000,
>+    1000000000000000,
>+    10000000000000000,
>+    100000000000000000,
>+    1000000000000000000,
>+};
>+
>+}  // namespace
>+
>+// Uses strftime(3) to format the given Time.  The following extended format
>+// specifiers are also supported:
>+//
>+//   - %Ez  - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm)
>+//   - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss)
>+//   - %E#S - Seconds with # digits of fractional precision
>+//   - %E*S - Seconds with full fractional precision (a literal '*')
>+//   - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999)
>+//
>+// The standard specifiers from RFC3339_* (%Y, %m, %d, %H, %M, and %S) are
>+// handled internally for performance reasons.  strftime(3) is slow due to
>+// a POSIX requirement to respect changes to ${TZ}.
>+//
>+// The TZ/GNU %s extension is handled internally because strftime() has
>+// to use mktime() to generate it, and that assumes the local time zone.
>+//
>+// We also handle the %z and %Z specifiers to accommodate platforms that do
>+// not support the tm_gmtoff and tm_zone extensions to std::tm.
>+//
>+// Requires that zero() <= fs < seconds(1).
>+std::string format(const std::string& format, const time_point<seconds>& tp,
>+                   const detail::femtoseconds& fs, const time_zone& tz) {
>+  std::string result;
>+  result.reserve(format.size());  // A reasonable guess for the result size.
>+  const time_zone::absolute_lookup al = tz.lookup(tp);
>+  const std::tm tm = ToTM(al);
>+
>+  // Scratch buffer for internal conversions.
>+  char buf[3 + kDigits10_64];  // enough for longest conversion
>+  char* const ep = buf + sizeof(buf);
>+  char* bp;  // works back from ep
>+
>+  // Maintain three, disjoint subsequences that span format.
>+  //   [format.begin() ... pending) : already formatted into result
>+  //   [pending ... cur) : formatting pending, but no special cases
>+  //   [cur ... format.end()) : unexamined
>+  // Initially, everything is in the unexamined part.
>+  const char* pending = format.c_str();  // NUL terminated
>+  const char* cur = pending;
>+  const char* end = pending + format.length();
>+
>+  while (cur != end) {  // while something is unexamined
>+    // Moves cur to the next percent sign.
>+    const char* start = cur;
>+    while (cur != end && *cur != '%') ++cur;
>+
>+    // If the new pending text is all ordinary, copy it out.
>+    if (cur != start && pending == start) {
>+      result.append(pending, static_cast<std::size_t>(cur - pending));
>+      pending = start = cur;
>+    }
>+
>+    // Span the sequential percent signs.
>+    const char* percent = cur;
>+    while (cur != end && *cur == '%') ++cur;
>+
>+    // If the new pending text is all percents, copy out one
>+    // percent for every matched pair, then skip those pairs.
>+    if (cur != start && pending == start) {
>+      std::size_t escaped = static_cast<std::size_t>(cur - pending) / 2;
>+      result.append(pending, escaped);
>+      pending += escaped * 2;
>+      // Also copy out a single trailing percent.
>+      if (pending != cur && cur == end) {
>+        result.push_back(*pending++);
>+      }
>+    }
>+
>+    // Loop unless we have an unescaped percent.
>+    if (cur == end || (cur - percent) % 2 == 0) continue;
>+
>+    // Simple specifiers that we handle ourselves.
>+    if (strchr("YmdeHMSzZs%", *cur)) {
>+      if (cur - 1 != pending) {
>+        FormatTM(&result, std::string(pending, cur - 1), tm);
>+      }
>+      switch (*cur) {
>+        case 'Y':
>+          // This avoids the tm.tm_year overflow problem for %Y, however
>+          // tm.tm_year will still be used by other specifiers like %D.
>+          bp = Format64(ep, 0, al.cs.year());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'm':
>+          bp = Format02d(ep, al.cs.month());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'd':
>+        case 'e':
>+          bp = Format02d(ep, al.cs.day());
>+          if (*cur == 'e' && *bp == '0') *bp = ' ';  // for Windows
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'H':
>+          bp = Format02d(ep, al.cs.hour());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'M':
>+          bp = Format02d(ep, al.cs.minute());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'S':
>+          bp = Format02d(ep, al.cs.second());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'z':
>+          bp = FormatOffset(ep, al.offset, "");
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case 'Z':
>+          result.append(al.abbr);
>+          break;
>+        case 's':
>+          bp = Format64(ep, 0, ToUnixSeconds(tp));
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          break;
>+        case '%':
>+          result.push_back('%');
>+          break;
>+      }
>+      pending = ++cur;
>+      continue;
>+    }
>+
>+    // Loop if there is no E modifier.
>+    if (*cur != 'E' || ++cur == end) continue;
>+
>+    // Format our extensions.
>+    if (*cur == 'z') {
>+      // Formats %Ez.
>+      if (cur - 2 != pending) {
>+        FormatTM(&result, std::string(pending, cur - 2), tm);
>+      }
>+      bp = FormatOffset(ep, al.offset, ":");
>+      result.append(bp, static_cast<std::size_t>(ep - bp));
>+      pending = ++cur;
>+    } else if (*cur == '*' && cur + 1 != end && *(cur + 1) == 'z') {
>+      // Formats %E*z.
>+      if (cur - 2 != pending) {
>+        FormatTM(&result, std::string(pending, cur - 2), tm);
>+      }
>+      bp = FormatOffset(ep, al.offset, ":*");
>+      result.append(bp, static_cast<std::size_t>(ep - bp));
>+      pending = cur += 2;
>+    } else if (*cur == '*' && cur + 1 != end &&
>+               (*(cur + 1) == 'S' || *(cur + 1) == 'f')) {
>+      // Formats %E*S or %E*F.
>+      if (cur - 2 != pending) {
>+        FormatTM(&result, std::string(pending, cur - 2), tm);
>+      }
>+      char* cp = ep;
>+      bp = Format64(cp, 15, fs.count());
>+      while (cp != bp && cp[-1] == '0') --cp;
>+      switch (*(cur + 1)) {
>+        case 'S':
>+          if (cp != bp) *--bp = '.';
>+          bp = Format02d(bp, al.cs.second());
>+          break;
>+        case 'f':
>+          if (cp == bp) *--bp = '0';
>+          break;
>+      }
>+      result.append(bp, static_cast<std::size_t>(cp - bp));
>+      pending = cur += 2;
>+    } else if (*cur == '4' && cur + 1 != end && *(cur + 1) == 'Y') {
>+      // Formats %E4Y.
>+      if (cur - 2 != pending) {
>+        FormatTM(&result, std::string(pending, cur - 2), tm);
>+      }
>+      bp = Format64(ep, 4, al.cs.year());
>+      result.append(bp, static_cast<std::size_t>(ep - bp));
>+      pending = cur += 2;
>+    } else if (std::isdigit(*cur)) {
>+      // Possibly found %E#S or %E#f.
>+      int n = 0;
>+      if (const char* np = ParseInt(cur, 0, 0, 1024, &n)) {
>+        if (*np == 'S' || *np == 'f') {
>+          // Formats %E#S or %E#f.
>+          if (cur - 2 != pending) {
>+            FormatTM(&result, std::string(pending, cur - 2), tm);
>+          }
>+          bp = ep;
>+          if (n > 0) {
>+            if (n > kDigits10_64) n = kDigits10_64;
>+            bp = Format64(bp, n, (n > 15) ? fs.count() * kExp10[n - 15]
>+                                          : fs.count() / kExp10[15 - n]);
>+            if (*np == 'S') *--bp = '.';
>+          }
>+          if (*np == 'S') bp = Format02d(bp, al.cs.second());
>+          result.append(bp, static_cast<std::size_t>(ep - bp));
>+          pending = cur = ++np;
>+        }
>+      }
>+    }
>+  }
>+
>+  // Formats any remaining data.
>+  if (end != pending) {
>+    FormatTM(&result, std::string(pending, end), tm);
>+  }
>+
>+  return result;
>+}
>+
>+namespace {
>+
>+const char* ParseOffset(const char* dp, const char* mode, int* offset) {
>+  if (dp != nullptr) {
>+    const char first = *dp++;
>+    if (first == '+' || first == '-') {
>+      char sep = mode[0];
>+      int hours = 0;
>+      int minutes = 0;
>+      int seconds = 0;
>+      const char* ap = ParseInt(dp, 2, 0, 23, &hours);
>+      if (ap != nullptr && ap - dp == 2) {
>+        dp = ap;
>+        if (sep != '\0' && *ap == sep) ++ap;
>+        const char* bp = ParseInt(ap, 2, 0, 59, &minutes);
>+        if (bp != nullptr && bp - ap == 2) {
>+          dp = bp;
>+          if (sep != '\0' && *bp == sep) ++bp;
>+          const char* cp = ParseInt(bp, 2, 0, 59, &seconds);
>+          if (cp != nullptr && cp - bp == 2) dp = cp;
>+        }
>+        *offset = ((hours * 60 + minutes) * 60) + seconds;
>+        if (first == '-') *offset = -*offset;
>+      } else {
>+        dp = nullptr;
>+      }
>+    } else if (first == 'Z') {  // Zulu
>+      *offset = 0;
>+    } else {
>+      dp = nullptr;
>+    }
>+  }
>+  return dp;
>+}
>+
>+const char* ParseZone(const char* dp, std::string* zone) {
>+  zone->clear();
>+  if (dp != nullptr) {
>+    while (*dp != '\0' && !std::isspace(*dp)) zone->push_back(*dp++);
>+    if (zone->empty()) dp = nullptr;
>+  }
>+  return dp;
>+}
>+
>+const char* ParseSubSeconds(const char* dp, detail::femtoseconds* subseconds) {
>+  if (dp != nullptr) {
>+    std::int_fast64_t v = 0;
>+    std::int_fast64_t exp = 0;
>+    const char* const bp = dp;
>+    while (const char* cp = strchr(kDigits, *dp)) {
>+      int d = static_cast<int>(cp - kDigits);
>+      if (d >= 10) break;
>+      if (exp < 15) {
>+        exp += 1;
>+        v *= 10;
>+        v += d;
>+      }
>+      ++dp;
>+    }
>+    if (dp != bp) {
>+      v *= kExp10[15 - exp];
>+      *subseconds = detail::femtoseconds(v);
>+    } else {
>+      dp = nullptr;
>+    }
>+  }
>+  return dp;
>+}
>+
>+// Parses a std::string into a std::tm using strptime(3).
>+const char* ParseTM(const char* dp, const char* fmt, std::tm* tm) {
>+  if (dp != nullptr) {
>+    dp = strptime(dp, fmt, tm);
>+  }
>+  return dp;
>+}
>+
>+}  // namespace
>+
>+// Uses strptime(3) to parse the given input.  Supports the same extended
>+// format specifiers as format(), although %E#S and %E*S are treated
>+// identically (and similarly for %E#f and %E*f).  %Ez and %E*z also accept
>+// the same inputs.
>+//
>+// The standard specifiers from RFC3339_* (%Y, %m, %d, %H, %M, and %S) are
>+// handled internally so that we can normally avoid strptime() altogether
>+// (which is particularly helpful when the native implementation is broken).
>+//
>+// The TZ/GNU %s extension is handled internally because strptime() has to
>+// use localtime_r() to generate it, and that assumes the local time zone.
>+//
>+// We also handle the %z specifier to accommodate platforms that do not
>+// support the tm_gmtoff extension to std::tm.  %Z is parsed but ignored.
>+bool parse(const std::string& format, const std::string& input,
>+           const time_zone& tz, time_point<seconds>* sec,
>+           detail::femtoseconds* fs, std::string* err) {
>+  // The unparsed input.
>+  const char* data = input.c_str();  // NUL terminated
>+
>+  // Skips leading whitespace.
>+  while (std::isspace(*data)) ++data;
>+
>+  const year_t kyearmax = std::numeric_limits<year_t>::max();
>+  const year_t kyearmin = std::numeric_limits<year_t>::min();
>+
>+  // Sets default values for unspecified fields.
>+  bool saw_year = false;
>+  year_t year = 1970;
>+  std::tm tm{};
>+  tm.tm_year = 1970 - 1900;
>+  tm.tm_mon = 1 - 1;  // Jan
>+  tm.tm_mday = 1;
>+  tm.tm_hour = 0;
>+  tm.tm_min = 0;
>+  tm.tm_sec = 0;
>+  tm.tm_wday = 4;  // Thu
>+  tm.tm_yday = 0;
>+  tm.tm_isdst = 0;
>+  auto subseconds = detail::femtoseconds::zero();
>+  bool saw_offset = false;
>+  int offset = 0;  // No offset from passed tz.
>+  std::string zone = "UTC";
>+
>+  const char* fmt = format.c_str();  // NUL terminated
>+  bool twelve_hour = false;
>+  bool afternoon = false;
>+
>+  bool saw_percent_s = false;
>+  std::int_fast64_t percent_s = 0;
>+
>+  // Steps through format, one specifier at a time.
>+  while (data != nullptr && *fmt != '\0') {
>+    if (std::isspace(*fmt)) {
>+      while (std::isspace(*data)) ++data;
>+      while (std::isspace(*++fmt)) continue;
>+      continue;
>+    }
>+
>+    if (*fmt != '%') {
>+      if (*data == *fmt) {
>+        ++data;
>+        ++fmt;
>+      } else {
>+        data = nullptr;
>+      }
>+      continue;
>+    }
>+
>+    const char* percent = fmt;
>+    if (*++fmt == '\0') {
>+      data = nullptr;
>+      continue;
>+    }
>+    switch (*fmt++) {
>+      case 'Y':
>+        // Symmetrically with FormatTime(), directly handing %Y avoids the
>+        // tm.tm_year overflow problem.  However, tm.tm_year will still be
>+        // used by other specifiers like %D.
>+        data = ParseInt(data, 0, kyearmin, kyearmax, &year);
>+        if (data != nullptr) saw_year = true;
>+        continue;
>+      case 'm':
>+        data = ParseInt(data, 2, 1, 12, &tm.tm_mon);
>+        if (data != nullptr) tm.tm_mon -= 1;
>+        continue;
>+      case 'd':
>+      case 'e':
>+        data = ParseInt(data, 2, 1, 31, &tm.tm_mday);
>+        continue;
>+      case 'H':
>+        data = ParseInt(data, 2, 0, 23, &tm.tm_hour);
>+        twelve_hour = false;
>+        continue;
>+      case 'M':
>+        data = ParseInt(data, 2, 0, 59, &tm.tm_min);
>+        continue;
>+      case 'S':
>+        data = ParseInt(data, 2, 0, 60, &tm.tm_sec);
>+        continue;
>+      case 'I':
>+      case 'l':
>+      case 'r':  // probably uses %I
>+        twelve_hour = true;
>+        break;
>+      case 'R':  // uses %H
>+      case 'T':  // uses %H
>+      case 'c':  // probably uses %H
>+      case 'X':  // probably uses %H
>+        twelve_hour = false;
>+        break;
>+      case 'z':
>+        data = ParseOffset(data, "", &offset);
>+        if (data != nullptr) saw_offset = true;
>+        continue;
>+      case 'Z':  // ignored; zone abbreviations are ambiguous
>+        data = ParseZone(data, &zone);
>+        continue;
>+      case 's':
>+        data = ParseInt(data, 0,
>+                        std::numeric_limits<std::int_fast64_t>::min(),
>+                        std::numeric_limits<std::int_fast64_t>::max(),
>+                        &percent_s);
>+        if (data != nullptr) saw_percent_s = true;
>+        continue;
>+      case '%':
>+        data = (*data == '%' ? data + 1 : nullptr);
>+        continue;
>+      case 'E':
>+        if (*fmt == 'z' || (*fmt == '*' && *(fmt + 1) == 'z')) {
>+          data = ParseOffset(data, ":", &offset);
>+          if (data != nullptr) saw_offset = true;
>+          fmt += (*fmt == 'z') ? 1 : 2;
>+          continue;
>+        }
>+        if (*fmt == '*' && *(fmt + 1) == 'S') {
>+          data = ParseInt(data, 2, 0, 60, &tm.tm_sec);
>+          if (data != nullptr && *data == '.') {
>+            data = ParseSubSeconds(data + 1, &subseconds);
>+          }
>+          fmt += 2;
>+          continue;
>+        }
>+        if (*fmt == '*' && *(fmt + 1) == 'f') {
>+          if (data != nullptr && std::isdigit(*data)) {
>+            data = ParseSubSeconds(data, &subseconds);
>+          }
>+          fmt += 2;
>+          continue;
>+        }
>+        if (*fmt == '4' && *(fmt + 1) == 'Y') {
>+          const char* bp = data;
>+          data = ParseInt(data, 4, year_t{-999}, year_t{9999}, &year);
>+          if (data != nullptr) {
>+            if (data - bp == 4) {
>+              saw_year = true;
>+            } else {
>+              data = nullptr;  // stopped too soon
>+            }
>+          }
>+          fmt += 2;
>+          continue;
>+        }
>+        if (std::isdigit(*fmt)) {
>+          int n = 0;  // value ignored
>+          if (const char* np = ParseInt(fmt, 0, 0, 1024, &n)) {
>+            if (*np == 'S') {
>+              data = ParseInt(data, 2, 0, 60, &tm.tm_sec);
>+              if (data != nullptr && *data == '.') {
>+                data = ParseSubSeconds(data + 1, &subseconds);
>+              }
>+              fmt = ++np;
>+              continue;
>+            }
>+            if (*np == 'f') {
>+              if (data != nullptr && std::isdigit(*data)) {
>+                data = ParseSubSeconds(data, &subseconds);
>+              }
>+              fmt = ++np;
>+              continue;
>+            }
>+          }
>+        }
>+        if (*fmt == 'c') twelve_hour = false;  // probably uses %H
>+        if (*fmt == 'X') twelve_hour = false;  // probably uses %H
>+        if (*fmt != '\0') ++fmt;
>+        break;
>+      case 'O':
>+        if (*fmt == 'H') twelve_hour = false;
>+        if (*fmt == 'I') twelve_hour = true;
>+        if (*fmt != '\0') ++fmt;
>+        break;
>+    }
>+
>+    // Parses the current specifier.
>+    const char* orig_data = data;
>+    std::string spec(percent, static_cast<std::size_t>(fmt - percent));
>+    data = ParseTM(data, spec.c_str(), &tm);
>+
>+    // If we successfully parsed %p we need to remember whether the result
>+    // was AM or PM so that we can adjust tm_hour before ConvertDateTime().
>+    // So reparse the input with a known AM hour, and check if it is shifted
>+    // to a PM hour.
>+    if (spec == "%p" && data != nullptr) {
>+      std::string test_input = "1";
>+      test_input.append(orig_data, static_cast<std::size_t>(data - orig_data));
>+      const char* test_data = test_input.c_str();
>+      std::tm tmp{};
>+      ParseTM(test_data, "%I%p", &tmp);
>+      afternoon = (tmp.tm_hour == 13);
>+    }
>+  }
>+
>+  // Adjust a 12-hour tm_hour value if it should be in the afternoon.
>+  if (twelve_hour && afternoon && tm.tm_hour < 12) {
>+    tm.tm_hour += 12;
>+  }
>+
>+  if (data == nullptr) {
>+    if (err != nullptr) *err = "Failed to parse input";
>+    return false;
>+  }
>+
>+  // Skip any remaining whitespace.
>+  while (std::isspace(*data)) ++data;
>+
>+  // parse() must consume the entire input std::string.
>+  if (*data != '\0') {
>+    if (err != nullptr) *err = "Illegal trailing data in input string";
>+    return false;
>+  }
>+
>+  // If we saw %s then we ignore anything else and return that time.
>+  if (saw_percent_s) {
>+    *sec = FromUnixSeconds(percent_s);
>+    *fs = detail::femtoseconds::zero();
>+    return true;
>+  }
>+
>+  // If we saw %z, %Ez, or %E*z then we want to interpret the parsed fields
>+  // in UTC and then shift by that offset.  Otherwise we want to interpret
>+  // the fields directly in the passed time_zone.
>+  time_zone ptz = saw_offset ? utc_time_zone() : tz;
>+
>+  // Allows a leap second of 60 to normalize forward to the following ":00".
>+  if (tm.tm_sec == 60) {
>+    tm.tm_sec -= 1;
>+    offset -= 1;
>+    subseconds = detail::femtoseconds::zero();
>+  }
>+
>+  if (!saw_year) {
>+    year = year_t{tm.tm_year};
>+    if (year > kyearmax - 1900) {
>+      // Platform-dependent, maybe unreachable.
>+      if (err != nullptr) *err = "Out-of-range year";
>+      return false;
>+    }
>+    year += 1900;
>+  }
>+
>+  const int month = tm.tm_mon + 1;
>+  civil_second cs(year, month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
>+
>+  // parse() should not allow normalization. Due to the restricted field
>+  // ranges above (see ParseInt()), the only possibility is for days to roll
>+  // into months. That is, parsing "Sep 31" should not produce "Oct 1".
>+  if (cs.month() != month || cs.day() != tm.tm_mday) {
>+    if (err != nullptr) *err = "Out-of-range field";
>+    return false;
>+  }
>+
>+  // Accounts for the offset adjustment before converting to absolute time.
>+  if ((offset < 0 && cs > civil_second::max() + offset) ||
>+      (offset > 0 && cs < civil_second::min() + offset)) {
>+    if (err != nullptr) *err = "Out-of-range field";
>+    return false;
>+  }
>+  cs -= offset;
>+
>+  const auto tp = ptz.lookup(cs).pre;
>+  // Checks for overflow/underflow and returns an error as necessary.
>+  if (tp == time_point<seconds>::max()) {
>+    const auto al = ptz.lookup(time_point<seconds>::max());
>+    if (cs > al.cs) {
>+      if (err != nullptr) *err = "Out-of-range field";
>+      return false;
>+    }
>+  }
>+  if (tp == time_point<seconds>::min()) {
>+    const auto al = ptz.lookup(time_point<seconds>::min());
>+    if (cs < al.cs) {
>+      if (err != nullptr) *err = "Out-of-range field";
>+      return false;
>+    }
>+  }
>+
>+  *sec = tp;
>+  *fs = subseconds;
>+  return true;
>+}
>+
>+}  // namespace detail
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..a90dda7603a8a10e37b3b58d9665968b583962be
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format_test.cc
>@@ -0,0 +1,1426 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+#include <chrono>
>+#include <iomanip>
>+#include <sstream>
>+#include <string>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+
>+namespace chrono = std::chrono;
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+// This helper is a macro so that failed expectations show up with the
>+// correct line numbers.
>+#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \
>+  do {                                                            \
>+    time_zone::absolute_lookup al = tz.lookup(tp);                \
>+    EXPECT_EQ(y, al.cs.year());                                   \
>+    EXPECT_EQ(m, al.cs.month());                                  \
>+    EXPECT_EQ(d, al.cs.day());                                    \
>+    EXPECT_EQ(hh, al.cs.hour());                                  \
>+    EXPECT_EQ(mm, al.cs.minute());                                \
>+    EXPECT_EQ(ss, al.cs.second());                                \
>+    EXPECT_EQ(off, al.offset);                                    \
>+    EXPECT_TRUE(isdst == al.is_dst);                              \
>+    EXPECT_STREQ(zone, al.abbr);                                  \
>+  } while (0)
>+
>+const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
>+const char RFC3339_sec[] =  "%Y-%m-%dT%H:%M:%S%Ez";
>+
>+const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z";
>+const char RFC1123_no_wday[] =  "%d %b %Y %H:%M:%S %z";
>+
>+// A helper that tests the given format specifier by itself, and with leading
>+// and trailing characters.  For example: TestFormatSpecifier(tp, "%a", "Thu").
>+template <typename D>
>+void TestFormatSpecifier(time_point<D> tp, time_zone tz, const std::string& fmt,
>+                         const std::string& ans) {
>+  EXPECT_EQ(ans, format(fmt, tp, tz)) << fmt;
>+  EXPECT_EQ("xxx " + ans, format("xxx " + fmt, tp, tz));
>+  EXPECT_EQ(ans + " yyy", format(fmt + " yyy", tp, tz));
>+  EXPECT_EQ("xxx " + ans + " yyy", format("xxx " + fmt + " yyy", tp, tz));
>+}
>+
>+// These tests sometimes run on platforms that have zoneinfo data so old
>+// that the transition we are attempting to check does not exist, most
>+// notably Android emulators.  Fortunately, AndroidZoneInfoSource supports
>+// time_zone::version() so, in cases where we've learned that it matters,
>+// we can make the check conditionally.
>+int VersionCmp(time_zone tz, const std::string& target) {
>+  std::string version = tz.version();
>+  if (version.empty() && !target.empty()) return 1;  // unknown > known
>+  return version.compare(target);
>+}
>+
>+}  // namespace
>+
>+//
>+// Testing format()
>+//
>+
>+TEST(Format, TimePointResolution) {
>+  const char kFmt[] = "%H:%M:%E*S";
>+  const time_zone utc = utc_time_zone();
>+  const time_point<chrono::nanoseconds> t0 =
>+      chrono::system_clock::from_time_t(1420167845) +
>+      chrono::milliseconds(123) + chrono::microseconds(456) +
>+      chrono::nanoseconds(789);
>+  EXPECT_EQ(
>+      "03:04:05.123456789",
>+      format(kFmt, chrono::time_point_cast<chrono::nanoseconds>(t0), utc));
>+  EXPECT_EQ(
>+      "03:04:05.123456",
>+      format(kFmt, chrono::time_point_cast<chrono::microseconds>(t0), utc));
>+  EXPECT_EQ(
>+      "03:04:05.123",
>+      format(kFmt, chrono::time_point_cast<chrono::milliseconds>(t0), utc));
>+  EXPECT_EQ("03:04:05",
>+            format(kFmt, chrono::time_point_cast<chrono::seconds>(t0), utc));
>+  EXPECT_EQ("03:04:05",
>+            format(kFmt, chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), utc));
>+  EXPECT_EQ("03:04:00",
>+            format(kFmt, chrono::time_point_cast<chrono::minutes>(t0), utc));
>+  EXPECT_EQ("03:00:00",
>+            format(kFmt, chrono::time_point_cast<chrono::hours>(t0), utc));
>+}
>+
>+TEST(Format, TimePointExtendedResolution) {
>+  const char kFmt[] = "%H:%M:%E*S";
>+  const time_zone utc = utc_time_zone();
>+  const time_point<absl::time_internal::cctz::seconds> tp =
>+      chrono::time_point_cast<absl::time_internal::cctz::seconds>(
>+          chrono::system_clock::from_time_t(0)) +
>+      chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56);
>+
>+  EXPECT_EQ(
>+      "12:34:56.123456789012345",
>+      detail::format(kFmt, tp, detail::femtoseconds(123456789012345), utc));
>+  EXPECT_EQ(
>+      "12:34:56.012345678901234",
>+      detail::format(kFmt, tp, detail::femtoseconds(12345678901234), utc));
>+  EXPECT_EQ(
>+      "12:34:56.001234567890123",
>+      detail::format(kFmt, tp, detail::femtoseconds(1234567890123), utc));
>+  EXPECT_EQ(
>+      "12:34:56.000123456789012",
>+      detail::format(kFmt, tp, detail::femtoseconds(123456789012), utc));
>+
>+  EXPECT_EQ("12:34:56.000000000000123",
>+            detail::format(kFmt, tp, detail::femtoseconds(123), utc));
>+  EXPECT_EQ("12:34:56.000000000000012",
>+            detail::format(kFmt, tp, detail::femtoseconds(12), utc));
>+  EXPECT_EQ("12:34:56.000000000000001",
>+            detail::format(kFmt, tp, detail::femtoseconds(1), utc));
>+}
>+
>+TEST(Format, Basics) {
>+  time_zone tz = utc_time_zone();
>+  time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
>+
>+  // Starts with a couple basic edge cases.
>+  EXPECT_EQ("", format("", tp, tz));
>+  EXPECT_EQ(" ", format(" ", tp, tz));
>+  EXPECT_EQ("  ", format("  ", tp, tz));
>+  EXPECT_EQ("xxx", format("xxx", tp, tz));
>+  std::string big(128, 'x');
>+  EXPECT_EQ(big, format(big, tp, tz));
>+  // Cause the 1024-byte buffer to grow.
>+  std::string bigger(100000, 'x');
>+  EXPECT_EQ(bigger, format(bigger, tp, tz));
>+
>+  tp += chrono::hours(13) + chrono::minutes(4) + chrono::seconds(5);
>+  tp += chrono::milliseconds(6) + chrono::microseconds(7) +
>+        chrono::nanoseconds(8);
>+  EXPECT_EQ("1970-01-01", format("%Y-%m-%d", tp, tz));
>+  EXPECT_EQ("13:04:05", format("%H:%M:%S", tp, tz));
>+  EXPECT_EQ("13:04:05.006", format("%H:%M:%E3S", tp, tz));
>+  EXPECT_EQ("13:04:05.006007", format("%H:%M:%E6S", tp, tz));
>+  EXPECT_EQ("13:04:05.006007008", format("%H:%M:%E9S", tp, tz));
>+}
>+
>+TEST(Format, PosixConversions) {
>+  const time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+
>+  TestFormatSpecifier(tp, tz, "%d", "01");
>+  TestFormatSpecifier(tp, tz, "%e", " 1");  // extension but internal support
>+  TestFormatSpecifier(tp, tz, "%H", "00");
>+  TestFormatSpecifier(tp, tz, "%I", "12");
>+  TestFormatSpecifier(tp, tz, "%j", "001");
>+  TestFormatSpecifier(tp, tz, "%m", "01");
>+  TestFormatSpecifier(tp, tz, "%M", "00");
>+  TestFormatSpecifier(tp, tz, "%S", "00");
>+  TestFormatSpecifier(tp, tz, "%U", "00");
>+  TestFormatSpecifier(tp, tz, "%w", "4");  // 4=Thursday
>+  TestFormatSpecifier(tp, tz, "%W", "00");
>+  TestFormatSpecifier(tp, tz, "%y", "70");
>+  TestFormatSpecifier(tp, tz, "%Y", "1970");
>+  TestFormatSpecifier(tp, tz, "%z", "+0000");
>+  TestFormatSpecifier(tp, tz, "%Z", "UTC");
>+  TestFormatSpecifier(tp, tz, "%%", "%");
>+
>+#if defined(__linux__)
>+  // SU/C99/TZ extensions
>+  TestFormatSpecifier(tp, tz, "%C", "19");
>+  TestFormatSpecifier(tp, tz, "%D", "01/01/70");
>+  TestFormatSpecifier(tp, tz, "%F", "1970-01-01");
>+  TestFormatSpecifier(tp, tz, "%g", "70");
>+  TestFormatSpecifier(tp, tz, "%G", "1970");
>+  TestFormatSpecifier(tp, tz, "%k", " 0");
>+  TestFormatSpecifier(tp, tz, "%l", "12");
>+  TestFormatSpecifier(tp, tz, "%n", "\n");
>+  TestFormatSpecifier(tp, tz, "%R", "00:00");
>+  TestFormatSpecifier(tp, tz, "%t", "\t");
>+  TestFormatSpecifier(tp, tz, "%T", "00:00:00");
>+  TestFormatSpecifier(tp, tz, "%u", "4");  // 4=Thursday
>+  TestFormatSpecifier(tp, tz, "%V", "01");
>+  TestFormatSpecifier(tp, tz, "%s", "0");
>+#endif
>+}
>+
>+TEST(Format, LocaleSpecific) {
>+  const time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+
>+  TestFormatSpecifier(tp, tz, "%a", "Thu");
>+  TestFormatSpecifier(tp, tz, "%A", "Thursday");
>+  TestFormatSpecifier(tp, tz, "%b", "Jan");
>+  TestFormatSpecifier(tp, tz, "%B", "January");
>+
>+  // %c should at least produce the numeric year and time-of-day.
>+  const std::string s = format("%c", tp, utc_time_zone());
>+  EXPECT_THAT(s, testing::HasSubstr("1970"));
>+  EXPECT_THAT(s, testing::HasSubstr("00:00:00"));
>+
>+  TestFormatSpecifier(tp, tz, "%p", "AM");
>+  TestFormatSpecifier(tp, tz, "%x", "01/01/70");
>+  TestFormatSpecifier(tp, tz, "%X", "00:00:00");
>+
>+#if defined(__linux__)
>+  // SU/C99/TZ extensions
>+  TestFormatSpecifier(tp, tz, "%h", "Jan");  // Same as %b
>+  TestFormatSpecifier(tp, tz, "%P", "am");
>+  TestFormatSpecifier(tp, tz, "%r", "12:00:00 AM");
>+
>+  // Modified conversion specifiers %E_
>+  TestFormatSpecifier(tp, tz, "%Ec", "Thu Jan  1 00:00:00 1970");
>+  TestFormatSpecifier(tp, tz, "%EC", "19");
>+  TestFormatSpecifier(tp, tz, "%Ex", "01/01/70");
>+  TestFormatSpecifier(tp, tz, "%EX", "00:00:00");
>+  TestFormatSpecifier(tp, tz, "%Ey", "70");
>+  TestFormatSpecifier(tp, tz, "%EY", "1970");
>+
>+  // Modified conversion specifiers %O_
>+  TestFormatSpecifier(tp, tz, "%Od", "01");
>+  TestFormatSpecifier(tp, tz, "%Oe", " 1");
>+  TestFormatSpecifier(tp, tz, "%OH", "00");
>+  TestFormatSpecifier(tp, tz, "%OI", "12");
>+  TestFormatSpecifier(tp, tz, "%Om", "01");
>+  TestFormatSpecifier(tp, tz, "%OM", "00");
>+  TestFormatSpecifier(tp, tz, "%OS", "00");
>+  TestFormatSpecifier(tp, tz, "%Ou", "4");  // 4=Thursday
>+  TestFormatSpecifier(tp, tz, "%OU", "00");
>+  TestFormatSpecifier(tp, tz, "%OV", "01");
>+  TestFormatSpecifier(tp, tz, "%Ow", "4");  // 4=Thursday
>+  TestFormatSpecifier(tp, tz, "%OW", "00");
>+  TestFormatSpecifier(tp, tz, "%Oy", "70");
>+#endif
>+}
>+
>+TEST(Format, Escaping) {
>+  const time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+
>+  TestFormatSpecifier(tp, tz, "%%", "%");
>+  TestFormatSpecifier(tp, tz, "%%a", "%a");
>+  TestFormatSpecifier(tp, tz, "%%b", "%b");
>+  TestFormatSpecifier(tp, tz, "%%Ea", "%Ea");
>+  TestFormatSpecifier(tp, tz, "%%Es", "%Es");
>+  TestFormatSpecifier(tp, tz, "%%E3S", "%E3S");
>+  TestFormatSpecifier(tp, tz, "%%OS", "%OS");
>+  TestFormatSpecifier(tp, tz, "%%O3S", "%O3S");
>+
>+  // Multiple levels of escaping.
>+  TestFormatSpecifier(tp, tz, "%%%Y", "%1970");
>+  TestFormatSpecifier(tp, tz, "%%%E3S", "%00.000");
>+  TestFormatSpecifier(tp, tz, "%%%%E3S", "%%E3S");
>+}
>+
>+TEST(Format, ExtendedSeconds) {
>+  const time_zone tz = utc_time_zone();
>+
>+  // No subseconds.
>+  time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
>+  tp += chrono::seconds(5);
>+  EXPECT_EQ("05", format("%E*S", tp, tz));
>+  EXPECT_EQ("05", format("%E0S", tp, tz));
>+  EXPECT_EQ("05.0", format("%E1S", tp, tz));
>+  EXPECT_EQ("05.00", format("%E2S", tp, tz));
>+  EXPECT_EQ("05.000", format("%E3S", tp, tz));
>+  EXPECT_EQ("05.0000", format("%E4S", tp, tz));
>+  EXPECT_EQ("05.00000", format("%E5S", tp, tz));
>+  EXPECT_EQ("05.000000", format("%E6S", tp, tz));
>+  EXPECT_EQ("05.0000000", format("%E7S", tp, tz));
>+  EXPECT_EQ("05.00000000", format("%E8S", tp, tz));
>+  EXPECT_EQ("05.000000000", format("%E9S", tp, tz));
>+  EXPECT_EQ("05.0000000000", format("%E10S", tp, tz));
>+  EXPECT_EQ("05.00000000000", format("%E11S", tp, tz));
>+  EXPECT_EQ("05.000000000000", format("%E12S", tp, tz));
>+  EXPECT_EQ("05.0000000000000", format("%E13S", tp, tz));
>+  EXPECT_EQ("05.00000000000000", format("%E14S", tp, tz));
>+  EXPECT_EQ("05.000000000000000", format("%E15S", tp, tz));
>+
>+  // With subseconds.
>+  tp += chrono::milliseconds(6) + chrono::microseconds(7) +
>+        chrono::nanoseconds(8);
>+  EXPECT_EQ("05.006007008", format("%E*S", tp, tz));
>+  EXPECT_EQ("05", format("%E0S", tp, tz));
>+  EXPECT_EQ("05.0", format("%E1S", tp, tz));
>+  EXPECT_EQ("05.00", format("%E2S", tp, tz));
>+  EXPECT_EQ("05.006", format("%E3S", tp, tz));
>+  EXPECT_EQ("05.0060", format("%E4S", tp, tz));
>+  EXPECT_EQ("05.00600", format("%E5S", tp, tz));
>+  EXPECT_EQ("05.006007", format("%E6S", tp, tz));
>+  EXPECT_EQ("05.0060070", format("%E7S", tp, tz));
>+  EXPECT_EQ("05.00600700", format("%E8S", tp, tz));
>+  EXPECT_EQ("05.006007008", format("%E9S", tp, tz));
>+  EXPECT_EQ("05.0060070080", format("%E10S", tp, tz));
>+  EXPECT_EQ("05.00600700800", format("%E11S", tp, tz));
>+  EXPECT_EQ("05.006007008000", format("%E12S", tp, tz));
>+  EXPECT_EQ("05.0060070080000", format("%E13S", tp, tz));
>+  EXPECT_EQ("05.00600700800000", format("%E14S", tp, tz));
>+  EXPECT_EQ("05.006007008000000", format("%E15S", tp, tz));
>+
>+  // Times before the Unix epoch.
>+  tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1);
>+  EXPECT_EQ("1969-12-31 23:59:59.999999",
>+            format("%Y-%m-%d %H:%M:%E*S", tp, tz));
>+
>+  // Here is a "%E*S" case we got wrong for a while.  While the first
>+  // instant below is correctly rendered as "...:07.333304", the second
>+  // one used to appear as "...:07.33330499999999999".
>+  tp = chrono::system_clock::from_time_t(0) +
>+       chrono::microseconds(1395024427333304);
>+  EXPECT_EQ("2014-03-17 02:47:07.333304",
>+            format("%Y-%m-%d %H:%M:%E*S", tp, tz));
>+  tp += chrono::microseconds(1);
>+  EXPECT_EQ("2014-03-17 02:47:07.333305",
>+            format("%Y-%m-%d %H:%M:%E*S", tp, tz));
>+}
>+
>+TEST(Format, ExtendedSubeconds) {
>+  const time_zone tz = utc_time_zone();
>+
>+  // No subseconds.
>+  time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
>+  tp += chrono::seconds(5);
>+  EXPECT_EQ("0", format("%E*f", tp, tz));
>+  EXPECT_EQ("", format("%E0f", tp, tz));
>+  EXPECT_EQ("0", format("%E1f", tp, tz));
>+  EXPECT_EQ("00", format("%E2f", tp, tz));
>+  EXPECT_EQ("000", format("%E3f", tp, tz));
>+  EXPECT_EQ("0000", format("%E4f", tp, tz));
>+  EXPECT_EQ("00000", format("%E5f", tp, tz));
>+  EXPECT_EQ("000000", format("%E6f", tp, tz));
>+  EXPECT_EQ("0000000", format("%E7f", tp, tz));
>+  EXPECT_EQ("00000000", format("%E8f", tp, tz));
>+  EXPECT_EQ("000000000", format("%E9f", tp, tz));
>+  EXPECT_EQ("0000000000", format("%E10f", tp, tz));
>+  EXPECT_EQ("00000000000", format("%E11f", tp, tz));
>+  EXPECT_EQ("000000000000", format("%E12f", tp, tz));
>+  EXPECT_EQ("0000000000000", format("%E13f", tp, tz));
>+  EXPECT_EQ("00000000000000", format("%E14f", tp, tz));
>+  EXPECT_EQ("000000000000000", format("%E15f", tp, tz));
>+
>+  // With subseconds.
>+  tp += chrono::milliseconds(6) + chrono::microseconds(7) +
>+        chrono::nanoseconds(8);
>+  EXPECT_EQ("006007008", format("%E*f", tp, tz));
>+  EXPECT_EQ("", format("%E0f", tp, tz));
>+  EXPECT_EQ("0", format("%E1f", tp, tz));
>+  EXPECT_EQ("00", format("%E2f", tp, tz));
>+  EXPECT_EQ("006", format("%E3f", tp, tz));
>+  EXPECT_EQ("0060", format("%E4f", tp, tz));
>+  EXPECT_EQ("00600", format("%E5f", tp, tz));
>+  EXPECT_EQ("006007", format("%E6f", tp, tz));
>+  EXPECT_EQ("0060070", format("%E7f", tp, tz));
>+  EXPECT_EQ("00600700", format("%E8f", tp, tz));
>+  EXPECT_EQ("006007008", format("%E9f", tp, tz));
>+  EXPECT_EQ("0060070080", format("%E10f", tp, tz));
>+  EXPECT_EQ("00600700800", format("%E11f", tp, tz));
>+  EXPECT_EQ("006007008000", format("%E12f", tp, tz));
>+  EXPECT_EQ("0060070080000", format("%E13f", tp, tz));
>+  EXPECT_EQ("00600700800000", format("%E14f", tp, tz));
>+  EXPECT_EQ("006007008000000", format("%E15f", tp, tz));
>+
>+  // Times before the Unix epoch.
>+  tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1);
>+  EXPECT_EQ("1969-12-31 23:59:59.999999",
>+            format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
>+
>+  // Here is a "%E*S" case we got wrong for a while.  While the first
>+  // instant below is correctly rendered as "...:07.333304", the second
>+  // one used to appear as "...:07.33330499999999999".
>+  tp = chrono::system_clock::from_time_t(0) +
>+       chrono::microseconds(1395024427333304);
>+  EXPECT_EQ("2014-03-17 02:47:07.333304",
>+            format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
>+  tp += chrono::microseconds(1);
>+  EXPECT_EQ("2014-03-17 02:47:07.333305",
>+            format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
>+}
>+
>+TEST(Format, CompareExtendSecondsVsSubseconds) {
>+  const time_zone tz = utc_time_zone();
>+
>+  // This test case illustrates the differences/similarities between:
>+  //   fmt_A: %E<prec>S
>+  //   fmt_B: %S.%E<prec>f
>+  auto fmt_A = [](const std::string& prec) { return "%E" + prec + "S"; };
>+  auto fmt_B = [](const std::string& prec) { return "%S.%E" + prec + "f"; };
>+
>+  // No subseconds:
>+  time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0);
>+  tp += chrono::seconds(5);
>+  // ... %E*S and %S.%E*f are different.
>+  EXPECT_EQ("05", format(fmt_A("*"), tp, tz));
>+  EXPECT_EQ("05.0", format(fmt_B("*"), tp, tz));
>+  // ... %E0S and %S.%E0f are different.
>+  EXPECT_EQ("05", format(fmt_A("0"), tp, tz));
>+  EXPECT_EQ("05.", format(fmt_B("0"), tp, tz));
>+  // ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15].
>+  for (int prec = 1; prec <= 15; ++prec) {
>+    const std::string a = format(fmt_A(std::to_string(prec)), tp, tz);
>+    const std::string b = format(fmt_B(std::to_string(prec)), tp, tz);
>+    EXPECT_EQ(a, b) << "prec=" << prec;
>+  }
>+
>+  // With subseconds:
>+  // ... %E*S and %S.%E*f are the same.
>+  tp += chrono::milliseconds(6) + chrono::microseconds(7) +
>+        chrono::nanoseconds(8);
>+  EXPECT_EQ("05.006007008", format(fmt_A("*"), tp, tz));
>+  EXPECT_EQ("05.006007008", format(fmt_B("*"), tp, tz));
>+  // ... %E0S and %S.%E0f are different.
>+  EXPECT_EQ("05", format(fmt_A("0"), tp, tz));
>+  EXPECT_EQ("05.", format(fmt_B("0"), tp, tz));
>+  // ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15].
>+  for (int prec = 1; prec <= 15; ++prec) {
>+    const std::string a = format(fmt_A(std::to_string(prec)), tp, tz);
>+    const std::string b = format(fmt_B(std::to_string(prec)), tp, tz);
>+    EXPECT_EQ(a, b) << "prec=" << prec;
>+  }
>+}
>+
>+TEST(Format, ExtendedOffset) {
>+  auto tp = chrono::system_clock::from_time_t(0);
>+
>+  time_zone tz = utc_time_zone();
>+  TestFormatSpecifier(tp, tz, "%Ez", "+00:00");
>+
>+  EXPECT_TRUE(load_time_zone("America/New_York", &tz));
>+  TestFormatSpecifier(tp, tz, "%Ez", "-05:00");
>+
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
>+  TestFormatSpecifier(tp, tz, "%Ez", "-08:00");
>+
>+  EXPECT_TRUE(load_time_zone("Australia/Sydney", &tz));
>+  TestFormatSpecifier(tp, tz, "%Ez", "+10:00");
>+
>+  EXPECT_TRUE(load_time_zone("Africa/Monrovia", &tz));
>+  // The true offset is -00:44:30 but %z only gives (truncated) minutes.
>+  TestFormatSpecifier(tp, tz, "%z", "-0044");
>+  TestFormatSpecifier(tp, tz, "%Ez", "-00:44");
>+}
>+
>+TEST(Format, ExtendedSecondOffset) {
>+  const time_zone utc = utc_time_zone();
>+  time_point<chrono::seconds> tp;
>+  time_zone tz;
>+
>+  EXPECT_TRUE(load_time_zone("America/New_York", &tz));
>+  tp = convert(civil_second(1883, 11, 18, 16, 59, 59), utc);
>+  if (tz.lookup(tp).offset == -5 * 60 * 60) {
>+    // It looks like the tzdata is only 32 bit (probably macOS),
>+    // which bottoms out at 1901-12-13T20:45:52+00:00.
>+  } else {
>+    TestFormatSpecifier(tp, tz, "%E*z", "-04:56:02");
>+    TestFormatSpecifier(tp, tz, "%Ez", "-04:56");
>+  }
>+  tp += chrono::seconds(1);
>+  TestFormatSpecifier(tp, tz, "%E*z", "-05:00:00");
>+
>+  EXPECT_TRUE(load_time_zone("Europe/Moscow", &tz));
>+  tp = convert(civil_second(1919, 6, 30, 23, 59, 59), utc);
>+  if (VersionCmp(tz, "2016g") >= 0) {
>+    TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
>+    TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
>+  }
>+  tp += chrono::seconds(1);
>+  TestFormatSpecifier(tp, tz, "%E*z", "+04:00:00");
>+}
>+
>+TEST(Format, ExtendedYears) {
>+  const time_zone utc = utc_time_zone();
>+  const char e4y_fmt[] = "%E4Y%m%d";  // no separators
>+
>+  // %E4Y zero-pads the year to produce at least 4 chars, including the sign.
>+  auto tp = convert(civil_second(-999, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("-9991127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(-99, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("-0991127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(-9, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("-0091127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(-1, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("-0011127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(0, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("00001127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(1, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("00011127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(9, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("00091127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(99, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("00991127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(999, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("09991127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(9999, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("99991127", format(e4y_fmt, tp, utc));
>+
>+  // When the year is outside [-999:9999], more than 4 chars are produced.
>+  tp = convert(civil_second(-1000, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("-10001127", format(e4y_fmt, tp, utc));
>+  tp = convert(civil_second(10000, 11, 27, 0, 0, 0), utc);
>+  EXPECT_EQ("100001127", format(e4y_fmt, tp, utc));
>+}
>+
>+TEST(Format, RFC3339Format) {
>+  time_zone tz;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
>+
>+  time_point<chrono::nanoseconds> tp =
>+      convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::milliseconds(100);
>+  EXPECT_EQ("1977-06-28T09:08:07.1-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::milliseconds(20);
>+  EXPECT_EQ("1977-06-28T09:08:07.12-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::milliseconds(3);
>+  EXPECT_EQ("1977-06-28T09:08:07.123-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::microseconds(400);
>+  EXPECT_EQ("1977-06-28T09:08:07.1234-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::microseconds(50);
>+  EXPECT_EQ("1977-06-28T09:08:07.12345-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::microseconds(6);
>+  EXPECT_EQ("1977-06-28T09:08:07.123456-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::nanoseconds(700);
>+  EXPECT_EQ("1977-06-28T09:08:07.1234567-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::nanoseconds(80);
>+  EXPECT_EQ("1977-06-28T09:08:07.12345678-07:00", format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+
>+  tp += chrono::nanoseconds(9);
>+  EXPECT_EQ("1977-06-28T09:08:07.123456789-07:00",
>+            format(RFC3339_full, tp, tz));
>+  EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
>+}
>+
>+TEST(Format, RFC1123Format) {  // locale specific
>+  time_zone tz;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
>+
>+  auto tp = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
>+  EXPECT_EQ("Tue, 28 Jun 1977 09:08:07 -0700", format(RFC1123_full, tp, tz));
>+  EXPECT_EQ("28 Jun 1977 09:08:07 -0700", format(RFC1123_no_wday, tp, tz));
>+}
>+
>+//
>+// Testing parse()
>+//
>+
>+TEST(Parse, TimePointResolution) {
>+  const char kFmt[] = "%H:%M:%E*S";
>+  const time_zone utc = utc_time_zone();
>+
>+  time_point<chrono::nanoseconds> tp_ns;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_ns));
>+  EXPECT_EQ("03:04:05.123456789", format(kFmt, tp_ns, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ns));
>+  EXPECT_EQ("03:04:05.123456", format(kFmt, tp_ns, utc));
>+
>+  time_point<chrono::microseconds> tp_us;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_us));
>+  EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_us));
>+  EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_us));
>+  EXPECT_EQ("03:04:05.123", format(kFmt, tp_us, utc));
>+
>+  time_point<chrono::milliseconds> tp_ms;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ms));
>+  EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_ms));
>+  EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_ms));
>+  EXPECT_EQ("03:04:05", format(kFmt, tp_ms, utc));
>+
>+  time_point<chrono::seconds> tp_s;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_s));
>+  EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
>+  EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_s));
>+  EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
>+
>+  time_point<chrono::minutes> tp_m;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_m));
>+  EXPECT_EQ("03:04:00", format(kFmt, tp_m, utc));
>+
>+  time_point<chrono::hours> tp_h;
>+  EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_h));
>+  EXPECT_EQ("03:00:00", format(kFmt, tp_h, utc));
>+}
>+
>+TEST(Parse, TimePointExtendedResolution) {
>+  const char kFmt[] = "%H:%M:%E*S";
>+  const time_zone utc = utc_time_zone();
>+
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+  detail::femtoseconds fs;
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.123456789012345", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.123456789012345", detail::format(kFmt, tp, fs, utc));
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.012345678901234", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.012345678901234", detail::format(kFmt, tp, fs, utc));
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.001234567890123", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.001234567890123", detail::format(kFmt, tp, fs, utc));
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000123", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.000000000000123", detail::format(kFmt, tp, fs, utc));
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000012", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.000000000000012", detail::format(kFmt, tp, fs, utc));
>+  EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000001", utc, &tp, &fs));
>+  EXPECT_EQ("12:34:56.000000000000001", detail::format(kFmt, tp, fs, utc));
>+}
>+
>+TEST(Parse, Basics) {
>+  time_zone tz = utc_time_zone();
>+  time_point<chrono::nanoseconds> tp =
>+      chrono::system_clock::from_time_t(1234567890);
>+
>+  // Simple edge cases.
>+  EXPECT_TRUE(parse("", "", tz, &tp));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(0), tp);  // everything defaulted
>+  EXPECT_TRUE(parse(" ", " ", tz, &tp));
>+  EXPECT_TRUE(parse("  ", "  ", tz, &tp));
>+  EXPECT_TRUE(parse("x", "x", tz, &tp));
>+  EXPECT_TRUE(parse("xxx", "xxx", tz, &tp));
>+
>+  EXPECT_TRUE(
>+      parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 -0800", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 29, 3, 8, 9, 0, false, "UTC");
>+}
>+
>+TEST(Parse, WithTimeZone) {
>+  time_zone tz;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
>+  time_point<chrono::nanoseconds> tp;
>+
>+  // We can parse a std::string without a UTC offset if we supply a timezone.
>+  EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 19, 8, 9, -7 * 60 * 60, true, "PDT");
>+
>+  // But the timezone is ignored when a UTC offset is present.
>+  EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 +0800",
>+                    utc_time_zone(), &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 19 - 8 - 7, 8, 9, -7 * 60 * 60, true, "PDT");
>+
>+  // Check a skipped time (a Spring DST transition).  parse() returns
>+  // the preferred-offset result, as defined for ConvertDateTime().
>+  EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-03-13 02:15:00", tz, &tp));
>+  ExpectTime(tp, tz, 2011, 3, 13, 3, 15, 0, -7 * 60 * 60, true, "PDT");
>+
>+  // Check a repeated time (a Fall DST transition).  parse() returns
>+  // the preferred-offset result, as defined for ConvertDateTime().
>+  EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-11-06 01:15:00", tz, &tp));
>+  ExpectTime(tp, tz, 2011, 11, 6, 1, 15, 0, -7 * 60 * 60, true, "PDT");
>+}
>+
>+TEST(Parse, LeapSecond) {
>+  time_zone tz;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
>+  time_point<chrono::nanoseconds> tp;
>+
>+  // ":59" -> ":59"
>+  EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59-08:00", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT");
>+
>+  // ":59.5" -> ":59.5"
>+  EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59.5-08:00", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT");
>+
>+  // ":60" -> ":00"
>+  EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60-08:00", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT");
>+
>+  // ":60.5" -> ":00.0"
>+  EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60.5-08:00", tz, &tp));
>+  ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT");
>+
>+  // ":61" -> error
>+  EXPECT_FALSE(parse(RFC3339_full, "2013-06-28T07:08:61-08:00", tz, &tp));
>+}
>+
>+TEST(Parse, ErrorCases) {
>+  const time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+
>+  // Illegal trailing data.
>+  EXPECT_FALSE(parse("%S", "123", tz, &tp));
>+
>+  // Can't parse an illegal format specifier.
>+  EXPECT_FALSE(parse("%Q", "x", tz, &tp));
>+
>+  // Fails because of trailing, unparsed data "blah".
>+  EXPECT_FALSE(parse("%m-%d", "2-3 blah", tz, &tp));
>+
>+  // Trailing whitespace is allowed.
>+  EXPECT_TRUE(parse("%m-%d", "2-3  ", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, utc_time_zone()).month());
>+  EXPECT_EQ(3, convert(tp, utc_time_zone()).day());
>+
>+  // Feb 31 requires normalization.
>+  EXPECT_FALSE(parse("%m-%d", "2-31", tz, &tp));
>+
>+  // Check that we cannot have spaces in UTC offsets.
>+  EXPECT_TRUE(parse("%z", "-0203", tz, &tp));
>+  EXPECT_FALSE(parse("%z", "- 2 3", tz, &tp));
>+  EXPECT_TRUE(parse("%Ez", "-02:03", tz, &tp));
>+  EXPECT_FALSE(parse("%Ez", "- 2: 3", tz, &tp));
>+
>+  // Check that we reject other malformed UTC offsets.
>+  EXPECT_FALSE(parse("%Ez", "+-08:00", tz, &tp));
>+  EXPECT_FALSE(parse("%Ez", "-+08:00", tz, &tp));
>+
>+  // Check that we do not accept "-0" in fields that allow zero.
>+  EXPECT_FALSE(parse("%Y", "-0", tz, &tp));
>+  EXPECT_FALSE(parse("%E4Y", "-0", tz, &tp));
>+  EXPECT_FALSE(parse("%H", "-0", tz, &tp));
>+  EXPECT_FALSE(parse("%M", "-0", tz, &tp));
>+  EXPECT_FALSE(parse("%S", "-0", tz, &tp));
>+  EXPECT_FALSE(parse("%z", "+-000", tz, &tp));
>+  EXPECT_FALSE(parse("%Ez", "+-0:00", tz, &tp));
>+  EXPECT_FALSE(parse("%z", "-00-0", tz, &tp));
>+  EXPECT_FALSE(parse("%Ez", "-00:-0", tz, &tp));
>+}
>+
>+TEST(Parse, PosixConversions) {
>+  time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+  const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%d", "15", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).day());
>+
>+  // %e is an extension, but is supported internally.
>+  tp = reset;
>+  EXPECT_TRUE(parse("%e", "15", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).day());  // Equivalent to %d
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%H", "17", tz, &tp));
>+  EXPECT_EQ(17, convert(tp, tz).hour());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%I", "5", tz, &tp));
>+  EXPECT_EQ(5, convert(tp, tz).hour());
>+
>+  // %j is parsed but ignored.
>+  EXPECT_TRUE(parse("%j", "32", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%m", "11", tz, &tp));
>+  EXPECT_EQ(11, convert(tp, tz).month());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%M", "33", tz, &tp));
>+  EXPECT_EQ(33, convert(tp, tz).minute());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%S", "55", tz, &tp));
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+  // %U is parsed but ignored.
>+  EXPECT_TRUE(parse("%U", "15", tz, &tp));
>+
>+  // %w is parsed but ignored.
>+  EXPECT_TRUE(parse("%w", "2", tz, &tp));
>+
>+  // %W is parsed but ignored.
>+  EXPECT_TRUE(parse("%W", "22", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%y", "04", tz, &tp));
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Y", "2004", tz, &tp));
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  EXPECT_TRUE(parse("%%", "%", tz, &tp));
>+
>+#if defined(__linux__)
>+  // SU/C99/TZ extensions
>+
>+  // Because we handle each (non-internal) specifier in a separate call
>+  // to strptime(), there is no way to group %C and %y together.  So we
>+  // just skip the %C/%y case.
>+#if 0
>+  tp = reset;
>+  EXPECT_TRUE(parse("%C %y", "20 04", tz, &tp));
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+#endif
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%D", "02/03/04", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, tz).month());
>+  EXPECT_EQ(3, convert(tp, tz).day());
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  EXPECT_TRUE(parse("%n", "\n", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%R", "03:44", tz, &tp));
>+  EXPECT_EQ(3, convert(tp, tz).hour());
>+  EXPECT_EQ(44, convert(tp, tz).minute());
>+
>+  EXPECT_TRUE(parse("%t", "\t\v\f\n\r ", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%T", "03:44:55", tz, &tp));
>+  EXPECT_EQ(3, convert(tp, tz).hour());
>+  EXPECT_EQ(44, convert(tp, tz).minute());
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%s", "1234567890", tz, &tp));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
>+
>+  // %s conversion, like %z/%Ez, pays no heed to the optional zone.
>+  time_zone lax;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax));
>+  tp = reset;
>+  EXPECT_TRUE(parse("%s", "1234567890", lax, &tp));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
>+
>+  // This is most important when the time has the same YMDhms
>+  // breakdown in the zone as some other time.  For example, ...
>+  //  1414917000 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PDT)
>+  //  1414920600 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PST)
>+  tp = reset;
>+  EXPECT_TRUE(parse("%s", "1414917000", lax, &tp));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(1414917000), tp);
>+  tp = reset;
>+  EXPECT_TRUE(parse("%s", "1414920600", lax, &tp));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(1414920600), tp);
>+#endif
>+}
>+
>+TEST(Parse, LocaleSpecific) {
>+  time_zone tz = utc_time_zone();
>+  auto tp = chrono::system_clock::from_time_t(0);
>+  const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
>+
>+  // %a is parsed but ignored.
>+  EXPECT_TRUE(parse("%a", "Mon", tz, &tp));
>+
>+  // %A is parsed but ignored.
>+  EXPECT_TRUE(parse("%A", "Monday", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%b", "Feb", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, tz).month());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%B", "February", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, tz).month());
>+
>+  // %p is parsed but ignored if it's alone.  But it's used with %I.
>+  EXPECT_TRUE(parse("%p", "AM", tz, &tp));
>+  tp = reset;
>+  EXPECT_TRUE(parse("%I %p", "5 PM", tz, &tp));
>+  EXPECT_EQ(17, convert(tp, tz).hour());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%x", "02/03/04", tz, &tp));
>+  if (convert(tp, tz).month() == 2) {
>+    EXPECT_EQ(3, convert(tp, tz).day());
>+  } else {
>+    EXPECT_EQ(2, convert(tp, tz).day());
>+    EXPECT_EQ(3, convert(tp, tz).month());
>+  }
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%X", "15:44:55", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).hour());
>+  EXPECT_EQ(44, convert(tp, tz).minute());
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+#if defined(__linux__)
>+  // SU/C99/TZ extensions
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%h", "Feb", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, tz).month());  // Equivalent to %b
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%l %p", "5 PM", tz, &tp));
>+  EXPECT_EQ(17, convert(tp, tz).hour());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%r", "03:44:55 PM", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).hour());
>+  EXPECT_EQ(44, convert(tp, tz).minute());
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Ec", "Tue Nov 19 05:06:07 2013", tz, &tp));
>+  EXPECT_EQ(convert(civil_second(2013, 11, 19, 5, 6, 7), tz), tp);
>+
>+  // Modified conversion specifiers %E_
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Ex", "02/03/04", tz, &tp));
>+  EXPECT_EQ(2, convert(tp, tz).month());
>+  EXPECT_EQ(3, convert(tp, tz).day());
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%EX", "15:44:55", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).hour());
>+  EXPECT_EQ(44, convert(tp, tz).minute());
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+  // %Ey, the year offset from %EC, doesn't really make sense alone as there
>+  // is no way to represent it in tm_year (%EC is not simply the century).
>+  // Yet, because we handle each (non-internal) specifier in a separate call
>+  // to strptime(), there is no way to group %EC and %Ey either.  So we just
>+  // skip the %EC and %Ey cases.
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%EY", "2004", tz, &tp));
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+
>+  // Modified conversion specifiers %O_
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Od", "15", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).day());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Oe", "15", tz, &tp));
>+  EXPECT_EQ(15, convert(tp, tz).day());  // Equivalent to %d
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%OH", "17", tz, &tp));
>+  EXPECT_EQ(17, convert(tp, tz).hour());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%OI", "5", tz, &tp));
>+  EXPECT_EQ(5, convert(tp, tz).hour());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Om", "11", tz, &tp));
>+  EXPECT_EQ(11, convert(tp, tz).month());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%OM", "33", tz, &tp));
>+  EXPECT_EQ(33, convert(tp, tz).minute());
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%OS", "55", tz, &tp));
>+  EXPECT_EQ(55, convert(tp, tz).second());
>+
>+  // %OU is parsed but ignored.
>+  EXPECT_TRUE(parse("%OU", "15", tz, &tp));
>+
>+  // %Ow is parsed but ignored.
>+  EXPECT_TRUE(parse("%Ow", "2", tz, &tp));
>+
>+  // %OW is parsed but ignored.
>+  EXPECT_TRUE(parse("%OW", "22", tz, &tp));
>+
>+  tp = reset;
>+  EXPECT_TRUE(parse("%Oy", "04", tz, &tp));
>+  EXPECT_EQ(2004, convert(tp, tz).year());
>+#endif
>+}
>+
>+TEST(Parse, ExtendedSeconds) {
>+  const time_zone tz = utc_time_zone();
>+  const time_point<chrono::nanoseconds> unix_epoch =
>+      chrono::system_clock::from_time_t(0);
>+
>+  // All %E<prec>S cases are treated the same as %E*S on input.
>+  auto precisions = {"*", "0", "1",  "2",  "3",  "4",  "5",  "6", "7",
>+                     "8", "9", "10", "11", "12", "13", "14", "15"};
>+  for (const std::string& prec : precisions) {
>+    const std::string fmt = "%E" + prec + "S";
>+    SCOPED_TRACE(fmt);
>+    time_point<chrono::nanoseconds> tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "5", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.0", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.00", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.6", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.60", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.600", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.67", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.670", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "05.678", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(678), tp);
>+  }
>+
>+  // Here is a "%E*S" case we got wrong for a while.  The fractional
>+  // part of the first instant is less than 2^31 and was correctly
>+  // parsed, while the second (and any subsecond field >=2^31) failed.
>+  time_point<chrono::nanoseconds> tp = unix_epoch;
>+  EXPECT_TRUE(parse("%E*S", "0.2147483647", tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+  tp = unix_epoch;
>+  EXPECT_TRUE(parse("%E*S", "0.2147483648", tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+
>+  // We should also be able to specify long strings of digits far
>+  // beyond the current resolution and have them convert the same way.
>+  tp = unix_epoch;
>+  EXPECT_TRUE(parse(
>+      "%E*S", "0.214748364801234567890123456789012345678901234567890123456789",
>+      tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+}
>+
>+TEST(Parse, ExtendedSecondsScan) {
>+  const time_zone tz = utc_time_zone();
>+  time_point<chrono::nanoseconds> tp;
>+  for (int ms = 0; ms < 1000; ms += 111) {
>+    for (int us = 0; us < 1000; us += 27) {
>+      const int micros = ms * 1000 + us;
>+      for (int ns = 0; ns < 1000; ns += 9) {
>+        const auto expected = chrono::system_clock::from_time_t(0) +
>+                              chrono::nanoseconds(micros * 1000 + ns);
>+        std::ostringstream oss;
>+        oss << "0." << std::setfill('0') << std::setw(3);
>+        oss << ms << std::setw(3) << us << std::setw(3) << ns;
>+        const std::string input = oss.str();
>+        EXPECT_TRUE(parse("%E*S", input, tz, &tp));
>+        EXPECT_EQ(expected, tp) << input;
>+      }
>+    }
>+  }
>+}
>+
>+TEST(Parse, ExtendedSubeconds) {
>+  const time_zone tz = utc_time_zone();
>+  const time_point<chrono::nanoseconds> unix_epoch =
>+      chrono::system_clock::from_time_t(0);
>+
>+  // All %E<prec>f cases are treated the same as %E*f on input.
>+  auto precisions = {"*", "0", "1",  "2",  "3",  "4",  "5",  "6", "7",
>+                     "8", "9", "10", "11", "12", "13", "14", "15"};
>+  for (const std::string& prec : precisions) {
>+    const std::string fmt = "%E" + prec + "f";
>+    SCOPED_TRACE(fmt);
>+    time_point<chrono::nanoseconds> tp = unix_epoch - chrono::seconds(1);
>+    EXPECT_TRUE(parse(fmt, "", tz, &tp));
>+    EXPECT_EQ(unix_epoch, tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "6", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "60", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "600", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "67", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "670", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "678", tz, &tp));
>+    EXPECT_EQ(unix_epoch + chrono::milliseconds(678), tp);
>+    tp = unix_epoch;
>+    EXPECT_TRUE(parse(fmt, "6789", tz, &tp));
>+    EXPECT_EQ(
>+        unix_epoch + chrono::milliseconds(678) + chrono::microseconds(900), tp);
>+  }
>+
>+  // Here is a "%E*f" case we got wrong for a while.  The fractional
>+  // part of the first instant is less than 2^31 and was correctly
>+  // parsed, while the second (and any subsecond field >=2^31) failed.
>+  time_point<chrono::nanoseconds> tp = unix_epoch;
>+  EXPECT_TRUE(parse("%E*f", "2147483647", tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+  tp = unix_epoch;
>+  EXPECT_TRUE(parse("%E*f", "2147483648", tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+
>+  // We should also be able to specify long strings of digits far
>+  // beyond the current resolution and have them convert the same way.
>+  tp = unix_epoch;
>+  EXPECT_TRUE(parse(
>+      "%E*f", "214748364801234567890123456789012345678901234567890123456789",
>+      tz, &tp));
>+  EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp);
>+}
>+
>+TEST(Parse, ExtendedSubecondsScan) {
>+  time_point<chrono::nanoseconds> tp;
>+  const time_zone tz = utc_time_zone();
>+  for (int ms = 0; ms < 1000; ms += 111) {
>+    for (int us = 0; us < 1000; us += 27) {
>+      const int micros = ms * 1000 + us;
>+      for (int ns = 0; ns < 1000; ns += 9) {
>+        std::ostringstream oss;
>+        oss << std::setfill('0') << std::setw(3) << ms;
>+        oss << std::setw(3) << us << std::setw(3) << ns;
>+        const std::string nanos = oss.str();
>+        const auto expected = chrono::system_clock::from_time_t(0) +
>+                              chrono::nanoseconds(micros * 1000 + ns);
>+        for (int ps = 0; ps < 1000; ps += 250) {
>+          std::ostringstream oss;
>+          oss << std::setfill('0') << std::setw(3) << ps;
>+          const std::string input = nanos + oss.str() + "999";
>+          EXPECT_TRUE(parse("%E*f", input, tz, &tp));
>+          EXPECT_EQ(expected + chrono::nanoseconds(ps) / 1000, tp) << input;
>+        }
>+      }
>+    }
>+  }
>+}
>+
>+TEST(Parse, ExtendedOffset) {
>+  const time_zone utc = utc_time_zone();
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+
>+  // %z against +-HHMM.
>+  EXPECT_TRUE(parse("%z", "+0000", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%z", "-1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp);
>+  EXPECT_TRUE(parse("%z", "+1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp);
>+  EXPECT_FALSE(parse("%z", "-123", utc, &tp));
>+
>+  // %z against +-HH.
>+  EXPECT_TRUE(parse("%z", "+00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%z", "-12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%z", "+12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 12, 0, 0), utc), tp);
>+  EXPECT_FALSE(parse("%z", "-1", utc, &tp));
>+
>+  // %Ez against +-HH:MM.
>+  EXPECT_TRUE(parse("%Ez", "+00:00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "-12:34", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "+12:34", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp);
>+  EXPECT_FALSE(parse("%Ez", "-12:3", utc, &tp));
>+
>+  // %Ez against +-HHMM.
>+  EXPECT_TRUE(parse("%Ez", "+0000", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "-1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "+1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp);
>+  EXPECT_FALSE(parse("%Ez", "-123", utc, &tp));
>+
>+  // %Ez against +-HH.
>+  EXPECT_TRUE(parse("%Ez", "+00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "-12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "+12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 12, 0, 0), utc), tp);
>+  EXPECT_FALSE(parse("%Ez", "-1", utc, &tp));
>+}
>+
>+TEST(Parse, ExtendedSecondOffset) {
>+  const time_zone utc = utc_time_zone();
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+
>+  // %Ez against +-HH:MM:SS.
>+  EXPECT_TRUE(parse("%Ez", "+00:00:00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "-12:34:56", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "+12:34:56", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp);
>+  EXPECT_FALSE(parse("%Ez", "-12:34:5", utc, &tp));
>+
>+  // %Ez against +-HHMMSS.
>+  EXPECT_TRUE(parse("%Ez", "+000000", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "-123456", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp);
>+  EXPECT_TRUE(parse("%Ez", "+123456", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp);
>+  EXPECT_FALSE(parse("%Ez", "-12345", utc, &tp));
>+
>+  // %E*z against +-HH:MM:SS.
>+  EXPECT_TRUE(parse("%E*z", "+00:00:00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "-12:34:56", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "+12:34:56", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp);
>+  EXPECT_FALSE(parse("%E*z", "-12:34:5", utc, &tp));
>+
>+  // %E*z against +-HHMMSS.
>+  EXPECT_TRUE(parse("%E*z", "+000000", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "-123456", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "+123456", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp);
>+  EXPECT_FALSE(parse("%E*z", "-12345", utc, &tp));
>+
>+  // %E*z against +-HH:MM.
>+  EXPECT_TRUE(parse("%E*z", "+00:00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "-12:34", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "+12:34", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp);
>+  EXPECT_FALSE(parse("%E*z", "-12:3", utc, &tp));
>+
>+  // %E*z against +-HHMM.
>+  EXPECT_TRUE(parse("%E*z", "+0000", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "-1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "+1234", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp);
>+  EXPECT_FALSE(parse("%E*z", "-123", utc, &tp));
>+
>+  // %E*z against +-HH.
>+  EXPECT_TRUE(parse("%E*z", "+00", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "-12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse("%E*z", "+12", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1969, 12, 31, 12, 0, 0), utc), tp);
>+  EXPECT_FALSE(parse("%E*z", "-1", utc, &tp));
>+}
>+
>+TEST(Parse, ExtendedYears) {
>+  const time_zone utc = utc_time_zone();
>+  const char e4y_fmt[] = "%E4Y%m%d";  // no separators
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+
>+  // %E4Y consumes exactly four chars, including any sign.
>+  EXPECT_TRUE(parse(e4y_fmt, "-9991127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(-999, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "-0991127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(-99, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "-0091127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(-9, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "-0011127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(-1, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "00001127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(0, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "00011127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(1, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "00091127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(9, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "00991127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(99, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "09991127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(999, 11, 27, 0, 0, 0), utc), tp);
>+  EXPECT_TRUE(parse(e4y_fmt, "99991127", utc, &tp));
>+  EXPECT_EQ(convert(civil_second(9999, 11, 27, 0, 0, 0), utc), tp);
>+
>+  // When the year is outside [-999:9999], the parse fails.
>+  EXPECT_FALSE(parse(e4y_fmt, "-10001127", utc, &tp));
>+  EXPECT_FALSE(parse(e4y_fmt, "100001127", utc, &tp));
>+}
>+
>+TEST(Parse, RFC3339Format) {
>+  const time_zone tz = utc_time_zone();
>+  time_point<chrono::nanoseconds> tp;
>+  EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00+00:00", tz, &tp));
>+  ExpectTime(tp, tz, 2014, 2, 12, 20, 21, 0, 0, false, "UTC");
>+
>+  // Check that %Ez also accepts "Z" as a synonym for "+00:00".
>+  time_point<chrono::nanoseconds> tp2;
>+  EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00Z", tz, &tp2));
>+  EXPECT_EQ(tp, tp2);
>+}
>+
>+TEST(Parse, MaxRange) {
>+  const time_zone utc = utc_time_zone();
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+
>+  // tests the upper limit using +00:00 offset
>+  EXPECT_TRUE(
>+      parse(RFC3339_sec, "292277026596-12-04T15:30:07+00:00", utc, &tp));
>+  EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max());
>+  EXPECT_FALSE(
>+      parse(RFC3339_sec, "292277026596-12-04T15:30:08+00:00", utc, &tp));
>+
>+  // tests the upper limit using -01:00 offset
>+  EXPECT_TRUE(
>+      parse(RFC3339_sec, "292277026596-12-04T14:30:07-01:00", utc, &tp));
>+  EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max());
>+  EXPECT_FALSE(
>+      parse(RFC3339_sec, "292277026596-12-04T15:30:07-01:00", utc, &tp));
>+
>+  // tests the lower limit using +00:00 offset
>+  EXPECT_TRUE(
>+      parse(RFC3339_sec, "-292277022657-01-27T08:29:52+00:00", utc, &tp));
>+  EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min());
>+  EXPECT_FALSE(
>+      parse(RFC3339_sec, "-292277022657-01-27T08:29:51+00:00", utc, &tp));
>+
>+  // tests the lower limit using +01:00 offset
>+  EXPECT_TRUE(
>+      parse(RFC3339_sec, "-292277022657-01-27T09:29:52+01:00", utc, &tp));
>+  EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min());
>+  EXPECT_FALSE(
>+      parse(RFC3339_sec, "-292277022657-01-27T08:29:51+01:00", utc, &tp));
>+
>+  // tests max/min civil-second overflow
>+  EXPECT_FALSE(parse(RFC3339_sec, "9223372036854775807-12-31T23:59:59-00:01",
>+                     utc, &tp));
>+  EXPECT_FALSE(parse(RFC3339_sec, "-9223372036854775808-01-01T00:00:00+00:01",
>+                     utc, &tp));
>+
>+  // TODO: Add tests that parsing times with fractional seconds overflow
>+  // appropriately. This can't be done until cctz::parse() properly detects
>+  // overflow when combining the chrono seconds and femto.
>+}
>+
>+//
>+// Roundtrip test for format()/parse().
>+//
>+
>+TEST(FormatParse, RoundTrip) {
>+  time_zone lax;
>+  EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax));
>+  const auto in = convert(civil_second(1977, 6, 28, 9, 8, 7), lax);
>+  const auto subseconds = chrono::nanoseconds(654321);
>+
>+  // RFC3339, which renders subseconds.
>+  {
>+    time_point<chrono::nanoseconds> out;
>+    const std::string s = format(RFC3339_full, in + subseconds, lax);
>+    EXPECT_TRUE(parse(RFC3339_full, s, lax, &out)) << s;
>+    EXPECT_EQ(in + subseconds, out);  // RFC3339_full includes %Ez
>+  }
>+
>+  // RFC1123, which only does whole seconds.
>+  {
>+    time_point<chrono::nanoseconds> out;
>+    const std::string s = format(RFC1123_full, in, lax);
>+    EXPECT_TRUE(parse(RFC1123_full, s, lax, &out)) << s;
>+    EXPECT_EQ(in, out);  // RFC1123_full includes %z
>+  }
>+
>+#if defined(_WIN32) || defined(_WIN64)
>+  // Initial investigations indicate the %c does not roundtrip on Windows.
>+  // TODO: Figure out what is going on here (perhaps a locale problem).
>+#else
>+  // Even though we don't know what %c will produce, it should roundtrip,
>+  // but only in the 0-offset timezone.
>+  {
>+    time_point<chrono::nanoseconds> out;
>+    time_zone utc = utc_time_zone();
>+    const std::string s = format("%c", in, utc);
>+    EXPECT_TRUE(parse("%c", s, utc, &out)) << s;
>+    EXPECT_EQ(in, out);
>+  }
>+#endif
>+}
>+
>+TEST(FormatParse, RoundTripDistantFuture) {
>+  const time_zone utc = utc_time_zone();
>+  const time_point<absl::time_internal::cctz::seconds> in = time_point<absl::time_internal::cctz::seconds>::max();
>+  const std::string s = format(RFC3339_full, in, utc);
>+  time_point<absl::time_internal::cctz::seconds> out;
>+  EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s;
>+  EXPECT_EQ(in, out);
>+}
>+
>+TEST(FormatParse, RoundTripDistantPast) {
>+  const time_zone utc = utc_time_zone();
>+  const time_point<absl::time_internal::cctz::seconds> in = time_point<absl::time_internal::cctz::seconds>::min();
>+  const std::string s = format(RFC3339_full, in, utc);
>+  time_point<absl::time_internal::cctz::seconds> out;
>+  EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s;
>+  EXPECT_EQ(in, out);
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..380834a172a8173b8a6a8a3260bff231da5a21da
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.cc
>@@ -0,0 +1,41 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "time_zone_if.h"
>+#include "time_zone_info.h"
>+#include "time_zone_libc.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+std::unique_ptr<TimeZoneIf> TimeZoneIf::Load(const std::string& name) {
>+  // Support "libc:localtime" and "libc:*" to access the legacy
>+  // localtime and UTC support respectively from the C library.
>+  if (name.compare(0, 5, "libc:") == 0) {
>+    return std::unique_ptr<TimeZoneIf>(new TimeZoneLibC(name.substr(5)));
>+  }
>+
>+  // Otherwise use the "zoneinfo" implementation by default.
>+  std::unique_ptr<TimeZoneInfo> tz(new TimeZoneInfo);
>+  if (!tz->Load(name)) tz.reset();
>+  return std::unique_ptr<TimeZoneIf>(tz.release());
>+}
>+
>+// Defined out-of-line to avoid emitting a weak vtable in all TUs.
>+TimeZoneIf::~TimeZoneIf() {}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4bd3866a87b8dd4da6566864db56d7fb7d6f90a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.h
>@@ -0,0 +1,72 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_
>+
>+#include <chrono>
>+#include <cstdint>
>+#include <memory>
>+#include <string>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// A simple interface used to hide time-zone complexities from time_zone::Impl.
>+// Subclasses implement the functions for civil-time conversions in the zone.
>+class TimeZoneIf {
>+ public:
>+  // A factory function for TimeZoneIf implementations.
>+  static std::unique_ptr<TimeZoneIf> Load(const std::string& name);
>+
>+  virtual ~TimeZoneIf();
>+
>+  virtual time_zone::absolute_lookup BreakTime(
>+      const time_point<seconds>& tp) const = 0;
>+  virtual time_zone::civil_lookup MakeTime(
>+      const civil_second& cs) const = 0;
>+
>+  virtual bool NextTransition(const time_point<seconds>& tp,
>+                              time_zone::civil_transition* trans) const = 0;
>+  virtual bool PrevTransition(const time_point<seconds>& tp,
>+                              time_zone::civil_transition* trans) const = 0;
>+
>+  virtual std::string Version() const = 0;
>+  virtual std::string Description() const = 0;
>+
>+ protected:
>+  TimeZoneIf() {}
>+};
>+
>+// Convert between time_point<seconds> and a count of seconds since the
>+// Unix epoch.  We assume that the std::chrono::system_clock and the
>+// Unix clock are second aligned, but not that they share an epoch.
>+inline std::int_fast64_t ToUnixSeconds(const time_point<seconds>& tp) {
>+  return (tp - std::chrono::time_point_cast<seconds>(
>+                   std::chrono::system_clock::from_time_t(0))).count();
>+}
>+inline time_point<seconds> FromUnixSeconds(std::int_fast64_t t) {
>+  return std::chrono::time_point_cast<seconds>(
>+             std::chrono::system_clock::from_time_t(0)) + seconds(t);
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3062ccd3ceb06afaf0b7762bd3e0dbf9b2f4f908
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.cc
>@@ -0,0 +1,108 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "time_zone_impl.h"
>+
>+#include <mutex>
>+#include <string>
>+#include <unordered_map>
>+#include <utility>
>+
>+#include "time_zone_fixed.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+// time_zone::Impls are linked into a map to support fast lookup by name.
>+using TimeZoneImplByName =
>+    std::unordered_map<std::string, const time_zone::Impl*>;
>+TimeZoneImplByName* time_zone_map = nullptr;
>+
>+// Mutual exclusion for time_zone_map.
>+std::mutex time_zone_mutex;
>+
>+}  // namespace
>+
>+time_zone time_zone::Impl::UTC() {
>+  return time_zone(UTCImpl());
>+}
>+
>+bool time_zone::Impl::LoadTimeZone(const std::string& name, time_zone* tz) {
>+  const time_zone::Impl* const utc_impl = UTCImpl();
>+
>+  // First check for UTC (which is never a key in time_zone_map).
>+  auto offset = seconds::zero();
>+  if (FixedOffsetFromName(name, &offset) && offset == seconds::zero()) {
>+    *tz = time_zone(utc_impl);
>+    return true;
>+  }
>+
>+  // Then check, under a shared lock, whether the time zone has already
>+  // been loaded. This is the common path. TODO: Move to shared_mutex.
>+  {
>+    std::lock_guard<std::mutex> lock(time_zone_mutex);
>+    if (time_zone_map != nullptr) {
>+      TimeZoneImplByName::const_iterator itr = time_zone_map->find(name);
>+      if (itr != time_zone_map->end()) {
>+        *tz = time_zone(itr->second);
>+        return itr->second != utc_impl;
>+      }
>+    }
>+  }
>+
>+  // Now check again, under an exclusive lock.
>+  std::lock_guard<std::mutex> lock(time_zone_mutex);
>+  if (time_zone_map == nullptr) time_zone_map = new TimeZoneImplByName;
>+  const Impl*& impl = (*time_zone_map)[name];
>+  if (impl == nullptr) {
>+    // The first thread in loads the new time zone.
>+    Impl* new_impl = new Impl(name);
>+    new_impl->zone_ = TimeZoneIf::Load(new_impl->name_);
>+    if (new_impl->zone_ == nullptr) {
>+      delete new_impl;  // free the nascent Impl
>+      impl = utc_impl;  // and fallback to UTC
>+    } else {
>+      impl = new_impl;  // install new time zone
>+    }
>+  }
>+  *tz = time_zone(impl);
>+  return impl != utc_impl;
>+}
>+
>+void time_zone::Impl::ClearTimeZoneMapTestOnly() {
>+  std::lock_guard<std::mutex> lock(time_zone_mutex);
>+  if (time_zone_map != nullptr) {
>+    // Existing time_zone::Impl* entries are in the wild, so we simply
>+    // leak them.  Future requests will result in reloading the data.
>+    time_zone_map->clear();
>+  }
>+}
>+
>+time_zone::Impl::Impl(const std::string& name) : name_(name) {}
>+
>+const time_zone::Impl* time_zone::Impl::UTCImpl() {
>+  static Impl* utc_impl = [] {
>+    Impl* impl = new Impl("UTC");
>+    impl->zone_ = TimeZoneIf::Load(impl->name_);  // never fails
>+    return impl;
>+  }();
>+  return utc_impl;
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..14965ef54bfb211b23b1341bcb06eb8ce2ce13e0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.h
>@@ -0,0 +1,90 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_
>+
>+#include <memory>
>+#include <string>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+#include "time_zone_if.h"
>+#include "time_zone_info.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// time_zone::Impl is the internal object referenced by a cctz::time_zone.
>+class time_zone::Impl {
>+ public:
>+  // The UTC time zone. Also used for other time zones that fail to load.
>+  static time_zone UTC();
>+
>+  // Load a named time zone. Returns false if the name is invalid, or if
>+  // some other kind of error occurs. Note that loading "UTC" never fails.
>+  static bool LoadTimeZone(const std::string& name, time_zone* tz);
>+
>+  // Clears the map of cached time zones.  Primarily for use in benchmarks
>+  // that gauge the performance of loading/parsing the time-zone data.
>+  static void ClearTimeZoneMapTestOnly();
>+
>+  // The primary key is the time-zone ID (e.g., "America/New_York").
>+  const std::string& Name() const {
>+    // TODO: It would nice if the zoneinfo data included the zone name.
>+    return name_;
>+  }
>+
>+  // Breaks a time_point down to civil-time components in this time zone.
>+  time_zone::absolute_lookup BreakTime(const time_point<seconds>& tp) const {
>+    return zone_->BreakTime(tp);
>+  }
>+
>+  // Converts the civil-time components in this time zone into a time_point.
>+  // That is, the opposite of BreakTime(). The requested civil time may be
>+  // ambiguous or illegal due to a change of UTC offset.
>+  time_zone::civil_lookup MakeTime(const civil_second& cs) const {
>+    return zone_->MakeTime(cs);
>+  }
>+
>+  // Finds the time of the next/previous offset change in this time zone.
>+  bool NextTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const {
>+    return zone_->NextTransition(tp, trans);
>+  }
>+  bool PrevTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const {
>+    return zone_->PrevTransition(tp, trans);
>+  }
>+
>+  // Returns an implementation-defined version std::string for this time zone.
>+  std::string Version() const { return zone_->Version(); }
>+
>+  // Returns an implementation-defined description of this time zone.
>+  std::string Description() const { return zone_->Description(); }
>+
>+ private:
>+  explicit Impl(const std::string& name);
>+  static const Impl* UTCImpl();
>+
>+  const std::string name_;
>+  std::unique_ptr<TimeZoneIf> zone_;
>+};
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..bf73635d4c6a8c033b6e487925c41a2eab805184
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.cc
>@@ -0,0 +1,976 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+// This file implements the TimeZoneIf interface using the "zoneinfo"
>+// data provided by the IANA Time Zone Database (i.e., the only real game
>+// in town).
>+//
>+// TimeZoneInfo represents the history of UTC-offset changes within a time
>+// zone. Most changes are due to daylight-saving rules, but occasionally
>+// shifts are made to the time-zone's base offset. The database only attempts
>+// to be definitive for times since 1970, so be wary of local-time conversions
>+// before that. Also, rule and zone-boundary changes are made at the whim
>+// of governments, so the conversion of future times needs to be taken with
>+// a grain of salt.
>+//
>+// For more information see tzfile(5), http://www.iana.org/time-zones, or
>+// http://en.wikipedia.org/wiki/Zoneinfo.
>+//
>+// Note that we assume the proleptic Gregorian calendar and 60-second
>+// minutes throughout.
>+
>+#include "time_zone_info.h"
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <chrono>
>+#include <cstdint>
>+#include <cstdio>
>+#include <cstdlib>
>+#include <cstring>
>+#include <functional>
>+#include <iostream>
>+#include <memory>
>+#include <sstream>
>+#include <string>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "time_zone_fixed.h"
>+#include "time_zone_posix.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+inline bool IsLeap(year_t year) {
>+  return (year % 4) == 0 && ((year % 100) != 0 || (year % 400) == 0);
>+}
>+
>+// The number of days in non-leap and leap years respectively.
>+const std::int_least32_t kDaysPerYear[2] = {365, 366};
>+
>+// The day offsets of the beginning of each (1-based) month in non-leap and
>+// leap years respectively (e.g., 335 days before December in a leap year).
>+const std::int_least16_t kMonthOffsets[2][1 + 12 + 1] = {
>+  {-1, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
>+  {-1, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
>+};
>+
>+// We reject leap-second encoded zoneinfo and so assume 60-second minutes.
>+const std::int_least32_t kSecsPerDay = 24 * 60 * 60;
>+
>+// 400-year chunks always have 146097 days (20871 weeks).
>+const std::int_least64_t kSecsPer400Years = 146097LL * kSecsPerDay;
>+
>+// Like kDaysPerYear[] but scaled up by a factor of kSecsPerDay.
>+const std::int_least32_t kSecsPerYear[2] = {
>+  365 * kSecsPerDay,
>+  366 * kSecsPerDay,
>+};
>+
>+// Single-byte, unsigned numeric values are encoded directly.
>+inline std::uint_fast8_t Decode8(const char* cp) {
>+  return static_cast<std::uint_fast8_t>(*cp) & 0xff;
>+}
>+
>+// Multi-byte, numeric values are encoded using a MSB first,
>+// twos-complement representation. These helpers decode, from
>+// the given address, 4-byte and 8-byte values respectively.
>+// Note: If int_fastXX_t == intXX_t and this machine is not
>+// twos complement, then there will be at least one input value
>+// we cannot represent.
>+std::int_fast32_t Decode32(const char* cp) {
>+  std::uint_fast32_t v = 0;
>+  for (int i = 0; i != (32 / 8); ++i) v = (v << 8) | Decode8(cp++);
>+  const std::int_fast32_t s32max = 0x7fffffff;
>+  const auto s32maxU = static_cast<std::uint_fast32_t>(s32max);
>+  if (v <= s32maxU) return static_cast<std::int_fast32_t>(v);
>+  return static_cast<std::int_fast32_t>(v - s32maxU - 1) - s32max - 1;
>+}
>+
>+std::int_fast64_t Decode64(const char* cp) {
>+  std::uint_fast64_t v = 0;
>+  for (int i = 0; i != (64 / 8); ++i) v = (v << 8) | Decode8(cp++);
>+  const std::int_fast64_t s64max = 0x7fffffffffffffff;
>+  const auto s64maxU = static_cast<std::uint_fast64_t>(s64max);
>+  if (v <= s64maxU) return static_cast<std::int_fast64_t>(v);
>+  return static_cast<std::int_fast64_t>(v - s64maxU - 1) - s64max - 1;
>+}
>+
>+// Generate a year-relative offset for a PosixTransition.
>+std::int_fast64_t TransOffset(bool leap_year, int jan1_weekday,
>+                              const PosixTransition& pt) {
>+  std::int_fast64_t days = 0;
>+  switch (pt.date.fmt) {
>+    case PosixTransition::J: {
>+      days = pt.date.j.day;
>+      if (!leap_year || days < kMonthOffsets[1][3]) days -= 1;
>+      break;
>+    }
>+    case PosixTransition::N: {
>+      days = pt.date.n.day;
>+      break;
>+    }
>+    case PosixTransition::M: {
>+      const bool last_week = (pt.date.m.week == 5);
>+      days = kMonthOffsets[leap_year][pt.date.m.month + last_week];
>+      const std::int_fast64_t weekday = (jan1_weekday + days) % 7;
>+      if (last_week) {
>+        days -= (weekday + 7 - 1 - pt.date.m.weekday) % 7 + 1;
>+      } else {
>+        days += (pt.date.m.weekday + 7 - weekday) % 7;
>+        days += (pt.date.m.week - 1) * 7;
>+      }
>+      break;
>+    }
>+  }
>+  return (days * kSecsPerDay) + pt.time.offset;
>+}
>+
>+inline time_zone::civil_lookup MakeUnique(const time_point<seconds>& tp) {
>+  time_zone::civil_lookup cl;
>+  cl.kind = time_zone::civil_lookup::UNIQUE;
>+  cl.pre = cl.trans = cl.post = tp;
>+  return cl;
>+}
>+
>+inline time_zone::civil_lookup MakeUnique(std::int_fast64_t unix_time) {
>+  return MakeUnique(FromUnixSeconds(unix_time));
>+}
>+
>+inline time_zone::civil_lookup MakeSkipped(const Transition& tr,
>+                                           const civil_second& cs) {
>+  time_zone::civil_lookup cl;
>+  cl.kind = time_zone::civil_lookup::SKIPPED;
>+  cl.pre = FromUnixSeconds(tr.unix_time - 1 + (cs - tr.prev_civil_sec));
>+  cl.trans = FromUnixSeconds(tr.unix_time);
>+  cl.post = FromUnixSeconds(tr.unix_time - (tr.civil_sec - cs));
>+  return cl;
>+}
>+
>+inline time_zone::civil_lookup MakeRepeated(const Transition& tr,
>+                                            const civil_second& cs) {
>+  time_zone::civil_lookup cl;
>+  cl.kind = time_zone::civil_lookup::REPEATED;
>+  cl.pre = FromUnixSeconds(tr.unix_time - 1 - (tr.prev_civil_sec - cs));
>+  cl.trans = FromUnixSeconds(tr.unix_time);
>+  cl.post = FromUnixSeconds(tr.unix_time + (cs - tr.civil_sec));
>+  return cl;
>+}
>+
>+inline civil_second YearShift(const civil_second& cs, year_t shift) {
>+  return civil_second(cs.year() + shift, cs.month(), cs.day(),
>+                      cs.hour(), cs.minute(), cs.second());
>+}
>+
>+}  // namespace
>+
>+// What (no leap-seconds) UTC+seconds zoneinfo would look like.
>+bool TimeZoneInfo::ResetToBuiltinUTC(const seconds& offset) {
>+  transition_types_.resize(1);
>+  TransitionType& tt(transition_types_.back());
>+  tt.utc_offset = static_cast<std::int_least32_t>(offset.count());
>+  tt.is_dst = false;
>+  tt.abbr_index = 0;
>+
>+  // We temporarily add some redundant, contemporary (2013 through 2023)
>+  // transitions for performance reasons.  See TimeZoneInfo::LocalTime().
>+  // TODO: Fix the performance issue and remove the extra transitions.
>+  transitions_.clear();
>+  transitions_.reserve(12);
>+  for (const std::int_fast64_t unix_time : {
>+           -(1LL << 59),  // BIG_BANG
>+           1356998400LL,  // 2013-01-01T00:00:00+00:00
>+           1388534400LL,  // 2014-01-01T00:00:00+00:00
>+           1420070400LL,  // 2015-01-01T00:00:00+00:00
>+           1451606400LL,  // 2016-01-01T00:00:00+00:00
>+           1483228800LL,  // 2017-01-01T00:00:00+00:00
>+           1514764800LL,  // 2018-01-01T00:00:00+00:00
>+           1546300800LL,  // 2019-01-01T00:00:00+00:00
>+           1577836800LL,  // 2020-01-01T00:00:00+00:00
>+           1609459200LL,  // 2021-01-01T00:00:00+00:00
>+           1640995200LL,  // 2022-01-01T00:00:00+00:00
>+           1672531200LL,  // 2023-01-01T00:00:00+00:00
>+           2147483647LL,  // 2^31 - 1
>+       }) {
>+    Transition& tr(*transitions_.emplace(transitions_.end()));
>+    tr.unix_time = unix_time;
>+    tr.type_index = 0;
>+    tr.civil_sec = LocalTime(tr.unix_time, tt).cs;
>+    tr.prev_civil_sec = tr.civil_sec - 1;
>+  }
>+
>+  default_transition_type_ = 0;
>+  abbreviations_ = FixedOffsetToAbbr(offset);
>+  abbreviations_.append(1, '\0');  // add NUL
>+  future_spec_.clear();  // never needed for a fixed-offset zone
>+  extended_ = false;
>+
>+  tt.civil_max = LocalTime(seconds::max().count(), tt).cs;
>+  tt.civil_min = LocalTime(seconds::min().count(), tt).cs;
>+
>+  transitions_.shrink_to_fit();
>+  return true;
>+}
>+
>+// Builds the in-memory header using the raw bytes from the file.
>+bool TimeZoneInfo::Header::Build(const tzhead& tzh) {
>+  std::int_fast32_t v;
>+  if ((v = Decode32(tzh.tzh_timecnt)) < 0) return false;
>+  timecnt = static_cast<std::size_t>(v);
>+  if ((v = Decode32(tzh.tzh_typecnt)) < 0) return false;
>+  typecnt = static_cast<std::size_t>(v);
>+  if ((v = Decode32(tzh.tzh_charcnt)) < 0) return false;
>+  charcnt = static_cast<std::size_t>(v);
>+  if ((v = Decode32(tzh.tzh_leapcnt)) < 0) return false;
>+  leapcnt = static_cast<std::size_t>(v);
>+  if ((v = Decode32(tzh.tzh_ttisstdcnt)) < 0) return false;
>+  ttisstdcnt = static_cast<std::size_t>(v);
>+  if ((v = Decode32(tzh.tzh_ttisgmtcnt)) < 0) return false;
>+  ttisgmtcnt = static_cast<std::size_t>(v);
>+  return true;
>+}
>+
>+// How many bytes of data are associated with this header. The result
>+// depends upon whether this is a section with 4-byte or 8-byte times.
>+std::size_t TimeZoneInfo::Header::DataLength(std::size_t time_len) const {
>+  std::size_t len = 0;
>+  len += (time_len + 1) * timecnt;  // unix_time + type_index
>+  len += (4 + 1 + 1) * typecnt;     // utc_offset + is_dst + abbr_index
>+  len += 1 * charcnt;               // abbreviations
>+  len += (time_len + 4) * leapcnt;  // leap-time + TAI-UTC
>+  len += 1 * ttisstdcnt;            // UTC/local indicators
>+  len += 1 * ttisgmtcnt;            // standard/wall indicators
>+  return len;
>+}
>+
>+// Check that the TransitionType has the expected offset/is_dst/abbreviation.
>+void TimeZoneInfo::CheckTransition(const std::string& name,
>+                                   const TransitionType& tt,
>+                                   std::int_fast32_t offset, bool is_dst,
>+                                   const std::string& abbr) const {
>+  if (tt.utc_offset != offset || tt.is_dst != is_dst ||
>+      &abbreviations_[tt.abbr_index] != abbr) {
>+    std::clog << name << ": Transition"
>+              << " offset=" << tt.utc_offset << "/"
>+              << (tt.is_dst ? "DST" : "STD")
>+              << "/abbr=" << &abbreviations_[tt.abbr_index]
>+              << " does not match POSIX spec '" << future_spec_ << "'\n";
>+  }
>+}
>+
>+// zic(8) can generate no-op transitions when a zone changes rules at an
>+// instant when there is actually no discontinuity.  So we check whether
>+// two transitions have equivalent types (same offset/is_dst/abbr).
>+bool TimeZoneInfo::EquivTransitions(std::uint_fast8_t tt1_index,
>+                                    std::uint_fast8_t tt2_index) const {
>+  if (tt1_index == tt2_index) return true;
>+  const TransitionType& tt1(transition_types_[tt1_index]);
>+  const TransitionType& tt2(transition_types_[tt2_index]);
>+  if (tt1.is_dst != tt2.is_dst) return false;
>+  if (tt1.utc_offset != tt2.utc_offset) return false;
>+  if (tt1.abbr_index != tt2.abbr_index) return false;
>+  return true;
>+}
>+
>+// Use the POSIX-TZ-environment-variable-style std::string to handle times
>+// in years after the last transition stored in the zoneinfo data.
>+void TimeZoneInfo::ExtendTransitions(const std::string& name,
>+                                     const Header& hdr) {
>+  extended_ = false;
>+  bool extending = !future_spec_.empty();
>+
>+  PosixTimeZone posix;
>+  if (extending && !ParsePosixSpec(future_spec_, &posix)) {
>+    std::clog << name << ": Failed to parse '" << future_spec_ << "'\n";
>+    extending = false;
>+  }
>+
>+  if (extending && posix.dst_abbr.empty()) {  // std only
>+    // The future specification should match the last/default transition,
>+    // and that means that handling the future will fall out naturally.
>+    std::uint_fast8_t index = default_transition_type_;
>+    if (hdr.timecnt != 0) index = transitions_[hdr.timecnt - 1].type_index;
>+    const TransitionType& tt(transition_types_[index]);
>+    CheckTransition(name, tt, posix.std_offset, false, posix.std_abbr);
>+    extending = false;
>+  }
>+
>+  if (extending && hdr.timecnt < 2) {
>+    std::clog << name << ": Too few transitions for POSIX spec\n";
>+    extending = false;
>+  }
>+
>+  if (!extending) {
>+    // Ensure that there is always a transition in the second half of the
>+    // time line (the BIG_BANG transition is in the first half) so that the
>+    // signed difference between a civil_second and the civil_second of its
>+    // previous transition is always representable, without overflow.
>+    const Transition& last(transitions_.back());
>+    if (last.unix_time < 0) {
>+      const std::uint_fast8_t type_index = last.type_index;
>+      Transition& tr(*transitions_.emplace(transitions_.end()));
>+      tr.unix_time = 2147483647;  // 2038-01-19T03:14:07+00:00
>+      tr.type_index = type_index;
>+    }
>+    return;  // last transition wins
>+  }
>+
>+  // Extend the transitions for an additional 400 years using the
>+  // future specification. Years beyond those can be handled by
>+  // mapping back to a cycle-equivalent year within that range.
>+  // zic(8) should probably do this so that we don't have to.
>+  // TODO: Reduce the extension by the number of compatible
>+  // transitions already in place.
>+  transitions_.reserve(hdr.timecnt + 400 * 2 + 1);
>+  transitions_.resize(hdr.timecnt + 400 * 2);
>+  extended_ = true;
>+
>+  // The future specification should match the last two transitions,
>+  // and those transitions should have different is_dst flags.  Note
>+  // that nothing says the UTC offset used by the is_dst transition
>+  // must be greater than that used by the !is_dst transition.  (See
>+  // Europe/Dublin, for example.)
>+  const Transition* tr0 = &transitions_[hdr.timecnt - 1];
>+  const Transition* tr1 = &transitions_[hdr.timecnt - 2];
>+  const TransitionType* tt0 = &transition_types_[tr0->type_index];
>+  const TransitionType* tt1 = &transition_types_[tr1->type_index];
>+  const TransitionType& dst(tt0->is_dst ? *tt0 : *tt1);
>+  const TransitionType& std(tt0->is_dst ? *tt1 : *tt0);
>+  CheckTransition(name, dst, posix.dst_offset, true, posix.dst_abbr);
>+  CheckTransition(name, std, posix.std_offset, false, posix.std_abbr);
>+
>+  // Add the transitions to tr1 and back to tr0 for each extra year.
>+  last_year_ = LocalTime(tr0->unix_time, *tt0).cs.year();
>+  bool leap_year = IsLeap(last_year_);
>+  const civil_day jan1(last_year_, 1, 1);
>+  std::int_fast64_t jan1_time = civil_second(jan1) - civil_second();
>+  int jan1_weekday = (static_cast<int>(get_weekday(jan1)) + 1) % 7;
>+  Transition* tr = &transitions_[hdr.timecnt];  // next trans to fill
>+  if (LocalTime(tr1->unix_time, *tt1).cs.year() != last_year_) {
>+    // Add a single extra transition to align to a calendar year.
>+    transitions_.resize(transitions_.size() + 1);
>+    assert(tr == &transitions_[hdr.timecnt]);  // no reallocation
>+    const PosixTransition& pt1(tt0->is_dst ? posix.dst_end : posix.dst_start);
>+    std::int_fast64_t tr1_offset = TransOffset(leap_year, jan1_weekday, pt1);
>+    tr->unix_time = jan1_time + tr1_offset - tt0->utc_offset;
>+    tr++->type_index = tr1->type_index;
>+    tr0 = &transitions_[hdr.timecnt];
>+    tr1 = &transitions_[hdr.timecnt - 1];
>+    tt0 = &transition_types_[tr0->type_index];
>+    tt1 = &transition_types_[tr1->type_index];
>+  }
>+  const PosixTransition& pt1(tt0->is_dst ? posix.dst_end : posix.dst_start);
>+  const PosixTransition& pt0(tt0->is_dst ? posix.dst_start : posix.dst_end);
>+  for (const year_t limit = last_year_ + 400; last_year_ < limit;) {
>+    last_year_ += 1;  // an additional year of generated transitions
>+    jan1_time += kSecsPerYear[leap_year];
>+    jan1_weekday = (jan1_weekday + kDaysPerYear[leap_year]) % 7;
>+    leap_year = !leap_year && IsLeap(last_year_);
>+    std::int_fast64_t tr1_offset = TransOffset(leap_year, jan1_weekday, pt1);
>+    tr->unix_time = jan1_time + tr1_offset - tt0->utc_offset;
>+    tr++->type_index = tr1->type_index;
>+    std::int_fast64_t tr0_offset = TransOffset(leap_year, jan1_weekday, pt0);
>+    tr->unix_time = jan1_time + tr0_offset - tt1->utc_offset;
>+    tr++->type_index = tr0->type_index;
>+  }
>+  assert(tr == &transitions_[0] + transitions_.size());
>+}
>+
>+bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) {
>+  // Read and validate the header.
>+  tzhead tzh;
>+  if (zip->Read(&tzh, sizeof(tzh)) != sizeof(tzh))
>+    return false;
>+  if (strncmp(tzh.tzh_magic, TZ_MAGIC, sizeof(tzh.tzh_magic)) != 0)
>+    return false;
>+  Header hdr;
>+  if (!hdr.Build(tzh))
>+    return false;
>+  std::size_t time_len = 4;
>+  if (tzh.tzh_version[0] != '\0') {
>+    // Skip the 4-byte data.
>+    if (zip->Skip(hdr.DataLength(time_len)) != 0)
>+      return false;
>+    // Read and validate the header for the 8-byte data.
>+    if (zip->Read(&tzh, sizeof(tzh)) != sizeof(tzh))
>+      return false;
>+    if (strncmp(tzh.tzh_magic, TZ_MAGIC, sizeof(tzh.tzh_magic)) != 0)
>+      return false;
>+    if (tzh.tzh_version[0] == '\0')
>+      return false;
>+    if (!hdr.Build(tzh))
>+      return false;
>+    time_len = 8;
>+  }
>+  if (hdr.typecnt == 0)
>+    return false;
>+  if (hdr.leapcnt != 0) {
>+    // This code assumes 60-second minutes so we do not want
>+    // the leap-second encoded zoneinfo. We could reverse the
>+    // compensation, but the "right" encoding is rarely used
>+    // so currently we simply reject such data.
>+    return false;
>+  }
>+  if (hdr.ttisstdcnt != 0 && hdr.ttisstdcnt != hdr.typecnt)
>+    return false;
>+  if (hdr.ttisgmtcnt != 0 && hdr.ttisgmtcnt != hdr.typecnt)
>+    return false;
>+
>+  // Read the data into a local buffer.
>+  std::size_t len = hdr.DataLength(time_len);
>+  std::vector<char> tbuf(len);
>+  if (zip->Read(tbuf.data(), len) != len)
>+    return false;
>+  const char* bp = tbuf.data();
>+
>+  // Decode and validate the transitions.
>+  transitions_.reserve(hdr.timecnt + 2);  // We might add a couple.
>+  transitions_.resize(hdr.timecnt);
>+  for (std::size_t i = 0; i != hdr.timecnt; ++i) {
>+    transitions_[i].unix_time = (time_len == 4) ? Decode32(bp) : Decode64(bp);
>+    bp += time_len;
>+    if (i != 0) {
>+      // Check that the transitions are ordered by time (as zic guarantees).
>+      if (!Transition::ByUnixTime()(transitions_[i - 1], transitions_[i]))
>+        return false;  // out of order
>+    }
>+  }
>+  bool seen_type_0 = false;
>+  for (std::size_t i = 0; i != hdr.timecnt; ++i) {
>+    transitions_[i].type_index = Decode8(bp++);
>+    if (transitions_[i].type_index >= hdr.typecnt)
>+      return false;
>+    if (transitions_[i].type_index == 0)
>+      seen_type_0 = true;
>+  }
>+
>+  // Decode and validate the transition types.
>+  transition_types_.resize(hdr.typecnt);
>+  for (std::size_t i = 0; i != hdr.typecnt; ++i) {
>+    transition_types_[i].utc_offset =
>+        static_cast<std::int_least32_t>(Decode32(bp));
>+    if (transition_types_[i].utc_offset >= kSecsPerDay ||
>+        transition_types_[i].utc_offset <= -kSecsPerDay)
>+      return false;
>+    bp += 4;
>+    transition_types_[i].is_dst = (Decode8(bp++) != 0);
>+    transition_types_[i].abbr_index = Decode8(bp++);
>+    if (transition_types_[i].abbr_index >= hdr.charcnt)
>+      return false;
>+  }
>+
>+  // Determine the before-first-transition type.
>+  default_transition_type_ = 0;
>+  if (seen_type_0 && hdr.timecnt != 0) {
>+    std::uint_fast8_t index = 0;
>+    if (transition_types_[0].is_dst) {
>+      index = transitions_[0].type_index;
>+      while (index != 0 && transition_types_[index].is_dst)
>+        --index;
>+    }
>+    while (index != hdr.typecnt && transition_types_[index].is_dst)
>+      ++index;
>+    if (index != hdr.typecnt)
>+      default_transition_type_ = index;
>+  }
>+
>+  // Copy all the abbreviations.
>+  abbreviations_.assign(bp, hdr.charcnt);
>+  bp += hdr.charcnt;
>+
>+  // Skip the unused portions. We've already dispensed with leap-second
>+  // encoded zoneinfo. The ttisstd/ttisgmt indicators only apply when
>+  // interpreting a POSIX spec that does not include start/end rules, and
>+  // that isn't the case here (see "zic -p").
>+  bp += (8 + 4) * hdr.leapcnt;  // leap-time + TAI-UTC
>+  bp += 1 * hdr.ttisstdcnt;     // UTC/local indicators
>+  bp += 1 * hdr.ttisgmtcnt;     // standard/wall indicators
>+  assert(bp == tbuf.data() + tbuf.size());
>+
>+  future_spec_.clear();
>+  if (tzh.tzh_version[0] != '\0') {
>+    // Snarf up the NL-enclosed future POSIX spec. Note
>+    // that version '3' files utilize an extended format.
>+    auto get_char = [](ZoneInfoSource* zip) -> int {
>+      unsigned char ch;  // all non-EOF results are positive
>+      return (zip->Read(&ch, 1) == 1) ? ch : EOF;
>+    };
>+    if (get_char(zip) != '\n')
>+      return false;
>+    for (int c = get_char(zip); c != '\n'; c = get_char(zip)) {
>+      if (c == EOF)
>+        return false;
>+      future_spec_.push_back(static_cast<char>(c));
>+    }
>+  }
>+
>+  // We don't check for EOF so that we're forwards compatible.
>+
>+  // If we did not find version information during the standard loading
>+  // process (as of tzh_version '3' that is unsupported), then ask the
>+  // ZoneInfoSource for any out-of-bound version std::string it may be privy to.
>+  if (version_.empty()) {
>+    version_ = zip->Version();
>+  }
>+
>+  // Trim redundant transitions. zic may have added these to work around
>+  // differences between the glibc and reference implementations (see
>+  // zic.c:dontmerge) and the Qt library (see zic.c:WORK_AROUND_QTBUG_53071).
>+  // For us, they just get in the way when we do future_spec_ extension.
>+  while (hdr.timecnt > 1) {
>+    if (!EquivTransitions(transitions_[hdr.timecnt - 1].type_index,
>+                          transitions_[hdr.timecnt - 2].type_index)) {
>+      break;
>+    }
>+    hdr.timecnt -= 1;
>+  }
>+  transitions_.resize(hdr.timecnt);
>+
>+  // Ensure that there is always a transition in the first half of the
>+  // time line (the second half is handled in ExtendTransitions()) so that
>+  // the signed difference between a civil_second and the civil_second of
>+  // its previous transition is always representable, without overflow.
>+  // A contemporary zic will usually have already done this for us.
>+  if (transitions_.empty() || transitions_.front().unix_time >= 0) {
>+    Transition& tr(*transitions_.emplace(transitions_.begin()));
>+    tr.unix_time = -(1LL << 59);  // see tz/zic.c "BIG_BANG"
>+    tr.type_index = default_transition_type_;
>+    hdr.timecnt += 1;
>+  }
>+
>+  // Extend the transitions using the future specification.
>+  ExtendTransitions(name, hdr);
>+
>+  // Compute the local civil time for each transition and the preceding
>+  // second. These will be used for reverse conversions in MakeTime().
>+  const TransitionType* ttp = &transition_types_[default_transition_type_];
>+  for (std::size_t i = 0; i != transitions_.size(); ++i) {
>+    Transition& tr(transitions_[i]);
>+    tr.prev_civil_sec = LocalTime(tr.unix_time, *ttp).cs - 1;
>+    ttp = &transition_types_[tr.type_index];
>+    tr.civil_sec = LocalTime(tr.unix_time, *ttp).cs;
>+    if (i != 0) {
>+      // Check that the transitions are ordered by civil time. Essentially
>+      // this means that an offset change cannot cross another such change.
>+      // No one does this in practice, and we depend on it in MakeTime().
>+      if (!Transition::ByCivilTime()(transitions_[i - 1], tr))
>+        return false;  // out of order
>+    }
>+  }
>+
>+  // Compute the maximum/minimum civil times that can be converted to a
>+  // time_point<seconds> for each of the zone's transition types.
>+  for (auto& tt : transition_types_) {
>+    tt.civil_max = LocalTime(seconds::max().count(), tt).cs;
>+    tt.civil_min = LocalTime(seconds::min().count(), tt).cs;
>+  }
>+
>+  transitions_.shrink_to_fit();
>+  return true;
>+}
>+
>+namespace {
>+
>+// fopen(3) adaptor.
>+inline FILE* FOpen(const char* path, const char* mode) {
>+#if defined(_MSC_VER)
>+  FILE* fp;
>+  if (fopen_s(&fp, path, mode) != 0) fp = nullptr;
>+  return fp;
>+#else
>+  return fopen(path, mode);  // TODO: Enable the close-on-exec flag.
>+#endif
>+}
>+
>+// A stdio(3)-backed implementation of ZoneInfoSource.
>+class FileZoneInfoSource : public ZoneInfoSource {
>+ public:
>+  static std::unique_ptr<ZoneInfoSource> Open(const std::string& name);
>+
>+  std::size_t Read(void* ptr, std::size_t size) override {
>+    size = std::min(size, len_);
>+    std::size_t nread = fread(ptr, 1, size, fp_.get());
>+    len_ -= nread;
>+    return nread;
>+  }
>+  int Skip(std::size_t offset) override {
>+    offset = std::min(offset, len_);
>+    int rc = fseek(fp_.get(), static_cast<long>(offset), SEEK_CUR);
>+    if (rc == 0) len_ -= offset;
>+    return rc;
>+  }
>+  std::string Version() const override {
>+    // TODO: It would nice if the zoneinfo data included the tzdb version.
>+    return std::string();
>+  }
>+
>+ protected:
>+  explicit FileZoneInfoSource(
>+      FILE* fp, std::size_t len = std::numeric_limits<std::size_t>::max())
>+      : fp_(fp, fclose), len_(len) {}
>+
>+ private:
>+  std::unique_ptr<FILE, int(*)(FILE*)> fp_;
>+  std::size_t len_;
>+};
>+
>+std::unique_ptr<ZoneInfoSource> FileZoneInfoSource::Open(
>+    const std::string& name) {
>+  // Use of the "file:" prefix is intended for testing purposes only.
>+  if (name.compare(0, 5, "file:") == 0) return Open(name.substr(5));
>+
>+  // Map the time-zone name to a path name.
>+  std::string path;
>+  if (name.empty() || name[0] != '/') {
>+    const char* tzdir = "/usr/share/zoneinfo";
>+    char* tzdir_env = nullptr;
>+#if defined(_MSC_VER)
>+    _dupenv_s(&tzdir_env, nullptr, "TZDIR");
>+#else
>+    tzdir_env = std::getenv("TZDIR");
>+#endif
>+    if (tzdir_env && *tzdir_env) tzdir = tzdir_env;
>+    path += tzdir;
>+    path += '/';
>+#if defined(_MSC_VER)
>+    free(tzdir_env);
>+#endif
>+  }
>+  path += name;
>+
>+  // Open the zoneinfo file.
>+  FILE* fp = FOpen(path.c_str(), "rb");
>+  if (fp == nullptr) return nullptr;
>+  std::size_t length = 0;
>+  if (fseek(fp, 0, SEEK_END) == 0) {
>+    long pos = ftell(fp);
>+    if (pos >= 0) {
>+      length = static_cast<std::size_t>(pos);
>+    }
>+    rewind(fp);
>+  }
>+  return std::unique_ptr<ZoneInfoSource>(new FileZoneInfoSource(fp, length));
>+}
>+
>+class AndroidZoneInfoSource : public FileZoneInfoSource {
>+ public:
>+  static std::unique_ptr<ZoneInfoSource> Open(const std::string& name);
>+  std::string Version() const override { return version_; }
>+
>+ private:
>+  explicit AndroidZoneInfoSource(FILE* fp, std::size_t len, const char* vers)
>+      : FileZoneInfoSource(fp, len), version_(vers) {}
>+  std::string version_;
>+};
>+
>+std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open(
>+    const std::string& name) {
>+  // Use of the "file:" prefix is intended for testing purposes only.
>+  if (name.compare(0, 5, "file:") == 0) return Open(name.substr(5));
>+
>+#if defined(__ANDROID__)
>+  // See Android's libc/tzcode/bionic.cpp for additional information.
>+  for (const char* tzdata : {"/data/misc/zoneinfo/current/tzdata",
>+                             "/system/usr/share/zoneinfo/tzdata"}) {
>+    std::unique_ptr<FILE, int (*)(FILE*)> fp(FOpen(tzdata, "rb"), fclose);
>+    if (fp.get() == nullptr) continue;
>+
>+    char hbuf[24];  // covers header.zonetab_offset too
>+    if (fread(hbuf, 1, sizeof(hbuf), fp.get()) != sizeof(hbuf)) continue;
>+    if (strncmp(hbuf, "tzdata", 6) != 0) continue;
>+    const char* vers = (hbuf[11] == '\0') ? hbuf + 6 : "";
>+    const std::int_fast32_t index_offset = Decode32(hbuf + 12);
>+    const std::int_fast32_t data_offset = Decode32(hbuf + 16);
>+    if (index_offset < 0 || data_offset < index_offset) continue;
>+    if (fseek(fp.get(), static_cast<long>(index_offset), SEEK_SET) != 0)
>+      continue;
>+
>+    char ebuf[52];  // covers entry.unused too
>+    const std::size_t index_size =
>+        static_cast<std::size_t>(data_offset - index_offset);
>+    const std::size_t zonecnt = index_size / sizeof(ebuf);
>+    if (zonecnt * sizeof(ebuf) != index_size) continue;
>+    for (std::size_t i = 0; i != zonecnt; ++i) {
>+      if (fread(ebuf, 1, sizeof(ebuf), fp.get()) != sizeof(ebuf)) break;
>+      const std::int_fast32_t start = data_offset + Decode32(ebuf + 40);
>+      const std::int_fast32_t length = Decode32(ebuf + 44);
>+      if (start < 0 || length < 0) break;
>+      ebuf[40] = '\0';  // ensure zone name is NUL terminated
>+      if (strcmp(name.c_str(), ebuf) == 0) {
>+        if (fseek(fp.get(), static_cast<long>(start), SEEK_SET) != 0) break;
>+        return std::unique_ptr<ZoneInfoSource>(new AndroidZoneInfoSource(
>+            fp.release(), static_cast<std::size_t>(length), vers));
>+      }
>+    }
>+  }
>+#endif  // __ANDROID__
>+  return nullptr;
>+}
>+
>+}  // namespace
>+
>+bool TimeZoneInfo::Load(const std::string& name) {
>+  // We can ensure that the loading of UTC or any other fixed-offset
>+  // zone never fails because the simple, fixed-offset state can be
>+  // internally generated. Note that this depends on our choice to not
>+  // accept leap-second encoded ("right") zoneinfo.
>+  auto offset = seconds::zero();
>+  if (FixedOffsetFromName(name, &offset)) {
>+    return ResetToBuiltinUTC(offset);
>+  }
>+
>+  // Find and use a ZoneInfoSource to load the named zone.
>+  auto zip = cctz_extension::zone_info_source_factory(
>+      name, [](const std::string& name) -> std::unique_ptr<ZoneInfoSource> {
>+        if (auto zip = FileZoneInfoSource::Open(name)) return zip;
>+        if (auto zip = AndroidZoneInfoSource::Open(name)) return zip;
>+        return nullptr;
>+      });
>+  return zip != nullptr && Load(name, zip.get());
>+}
>+
>+// BreakTime() translation for a particular transition type.
>+time_zone::absolute_lookup TimeZoneInfo::LocalTime(
>+    std::int_fast64_t unix_time, const TransitionType& tt) const {
>+  // A civil time in "+offset" looks like (time+offset) in UTC.
>+  // Note: We perform two additions in the civil_second domain to
>+  // sidestep the chance of overflow in (unix_time + tt.utc_offset).
>+  return {(civil_second() + unix_time) + tt.utc_offset,
>+          tt.utc_offset, tt.is_dst, &abbreviations_[tt.abbr_index]};
>+}
>+
>+// BreakTime() translation for a particular transition.
>+time_zone::absolute_lookup TimeZoneInfo::LocalTime(
>+    std::int_fast64_t unix_time, const Transition& tr) const {
>+  const TransitionType& tt = transition_types_[tr.type_index];
>+  // Note: (unix_time - tr.unix_time) will never overflow as we
>+  // have ensured that there is always a "nearby" transition.
>+  return {tr.civil_sec + (unix_time - tr.unix_time),  // TODO: Optimize.
>+          tt.utc_offset, tt.is_dst, &abbreviations_[tt.abbr_index]};
>+}
>+
>+// MakeTime() translation with a conversion-preserving +N * 400-year shift.
>+time_zone::civil_lookup TimeZoneInfo::TimeLocal(const civil_second& cs,
>+                                                year_t c4_shift) const {
>+  assert(last_year_ - 400 < cs.year() && cs.year() <= last_year_);
>+  time_zone::civil_lookup cl = MakeTime(cs);
>+  if (c4_shift > seconds::max().count() / kSecsPer400Years) {
>+    cl.pre = cl.trans = cl.post = time_point<seconds>::max();
>+  } else {
>+    const auto offset = seconds(c4_shift * kSecsPer400Years);
>+    const auto limit = time_point<seconds>::max() - offset;
>+    for (auto* tp : {&cl.pre, &cl.trans, &cl.post}) {
>+      if (*tp > limit) {
>+        *tp = time_point<seconds>::max();
>+      } else {
>+        *tp += offset;
>+      }
>+    }
>+  }
>+  return cl;
>+}
>+
>+time_zone::absolute_lookup TimeZoneInfo::BreakTime(
>+    const time_point<seconds>& tp) const {
>+  std::int_fast64_t unix_time = ToUnixSeconds(tp);
>+  const std::size_t timecnt = transitions_.size();
>+  assert(timecnt != 0);  // We always add a transition.
>+
>+  if (unix_time < transitions_[0].unix_time) {
>+    return LocalTime(unix_time, transition_types_[default_transition_type_]);
>+  }
>+  if (unix_time >= transitions_[timecnt - 1].unix_time) {
>+    // After the last transition. If we extended the transitions using
>+    // future_spec_, shift back to a supported year using the 400-year
>+    // cycle of calendaric equivalence and then compensate accordingly.
>+    if (extended_) {
>+      const std::int_fast64_t diff =
>+          unix_time - transitions_[timecnt - 1].unix_time;
>+      const year_t shift = diff / kSecsPer400Years + 1;
>+      const auto d = seconds(shift * kSecsPer400Years);
>+      time_zone::absolute_lookup al = BreakTime(tp - d);
>+      al.cs = YearShift(al.cs, shift * 400);
>+      return al;
>+    }
>+    return LocalTime(unix_time, transitions_[timecnt - 1]);
>+  }
>+
>+  const std::size_t hint = local_time_hint_.load(std::memory_order_relaxed);
>+  if (0 < hint && hint < timecnt) {
>+    if (transitions_[hint - 1].unix_time <= unix_time) {
>+      if (unix_time < transitions_[hint].unix_time) {
>+        return LocalTime(unix_time, transitions_[hint - 1]);
>+      }
>+    }
>+  }
>+
>+  const Transition target = {unix_time, 0, civil_second(), civil_second()};
>+  const Transition* begin = &transitions_[0];
>+  const Transition* tr = std::upper_bound(begin, begin + timecnt, target,
>+                                          Transition::ByUnixTime());
>+  local_time_hint_.store(static_cast<std::size_t>(tr - begin),
>+                         std::memory_order_relaxed);
>+  return LocalTime(unix_time, *--tr);
>+}
>+
>+time_zone::civil_lookup TimeZoneInfo::MakeTime(const civil_second& cs) const {
>+  const std::size_t timecnt = transitions_.size();
>+  assert(timecnt != 0);  // We always add a transition.
>+
>+  // Find the first transition after our target civil time.
>+  const Transition* tr = nullptr;
>+  const Transition* begin = &transitions_[0];
>+  const Transition* end = begin + timecnt;
>+  if (cs < begin->civil_sec) {
>+    tr = begin;
>+  } else if (cs >= transitions_[timecnt - 1].civil_sec) {
>+    tr = end;
>+  } else {
>+    const std::size_t hint = time_local_hint_.load(std::memory_order_relaxed);
>+    if (0 < hint && hint < timecnt) {
>+      if (transitions_[hint - 1].civil_sec <= cs) {
>+        if (cs < transitions_[hint].civil_sec) {
>+          tr = begin + hint;
>+        }
>+      }
>+    }
>+    if (tr == nullptr) {
>+      const Transition target = {0, 0, cs, civil_second()};
>+      tr = std::upper_bound(begin, end, target, Transition::ByCivilTime());
>+      time_local_hint_.store(static_cast<std::size_t>(tr - begin),
>+                             std::memory_order_relaxed);
>+    }
>+  }
>+
>+  if (tr == begin) {
>+    if (tr->prev_civil_sec >= cs) {
>+      // Before first transition, so use the default offset.
>+      const TransitionType& tt(transition_types_[default_transition_type_]);
>+      if (cs < tt.civil_min) return MakeUnique(time_point<seconds>::min());
>+      return MakeUnique(cs - (civil_second() + tt.utc_offset));
>+    }
>+    // tr->prev_civil_sec < cs < tr->civil_sec
>+    return MakeSkipped(*tr, cs);
>+  }
>+
>+  if (tr == end) {
>+    if (cs > (--tr)->prev_civil_sec) {
>+      // After the last transition. If we extended the transitions using
>+      // future_spec_, shift back to a supported year using the 400-year
>+      // cycle of calendaric equivalence and then compensate accordingly.
>+      if (extended_ && cs.year() > last_year_) {
>+        const year_t shift = (cs.year() - last_year_ - 1) / 400 + 1;
>+        return TimeLocal(YearShift(cs, shift * -400), shift);
>+      }
>+      const TransitionType& tt(transition_types_[tr->type_index]);
>+      if (cs > tt.civil_max) return MakeUnique(time_point<seconds>::max());
>+      return MakeUnique(tr->unix_time + (cs - tr->civil_sec));
>+    }
>+    // tr->civil_sec <= cs <= tr->prev_civil_sec
>+    return MakeRepeated(*tr, cs);
>+  }
>+
>+  if (tr->prev_civil_sec < cs) {
>+    // tr->prev_civil_sec < cs < tr->civil_sec
>+    return MakeSkipped(*tr, cs);
>+  }
>+
>+  if (cs <= (--tr)->prev_civil_sec) {
>+    // tr->civil_sec <= cs <= tr->prev_civil_sec
>+    return MakeRepeated(*tr, cs);
>+  }
>+
>+  // In between transitions.
>+  return MakeUnique(tr->unix_time + (cs - tr->civil_sec));
>+}
>+
>+std::string TimeZoneInfo::Version() const {
>+  return version_;
>+}
>+
>+std::string TimeZoneInfo::Description() const {
>+  std::ostringstream oss;
>+  oss << "#trans=" << transitions_.size();
>+  oss << " #types=" << transition_types_.size();
>+  oss << " spec='" << future_spec_ << "'";
>+  return oss.str();
>+}
>+
>+bool TimeZoneInfo::NextTransition(const time_point<seconds>& tp,
>+                                  time_zone::civil_transition* trans) const {
>+  if (transitions_.empty()) return false;
>+  const Transition* begin = &transitions_[0];
>+  const Transition* end = begin + transitions_.size();
>+  if (begin->unix_time <= -(1LL << 59)) {
>+    // Do not report the BIG_BANG found in recent zoneinfo data as it is
>+    // really a sentinel, not a transition.  See tz/zic.c.
>+    ++begin;
>+  }
>+  std::int_fast64_t unix_time = ToUnixSeconds(tp);
>+  const Transition target = { unix_time };
>+  const Transition* tr = std::upper_bound(begin, end, target,
>+                                          Transition::ByUnixTime());
>+  for (; tr != end; ++tr) {  // skip no-op transitions
>+    std::uint_fast8_t prev_type_index =
>+        (tr == begin) ? default_transition_type_ : tr[-1].type_index;
>+    if (!EquivTransitions(prev_type_index, tr[0].type_index)) break;
>+  }
>+  // When tr == end we return false, ignoring future_spec_.
>+  if (tr == end) return false;
>+  trans->from = tr->prev_civil_sec + 1;
>+  trans->to = tr->civil_sec;
>+  return true;
>+}
>+
>+bool TimeZoneInfo::PrevTransition(const time_point<seconds>& tp,
>+                                  time_zone::civil_transition* trans) const {
>+  if (transitions_.empty()) return false;
>+  const Transition* begin = &transitions_[0];
>+  const Transition* end = begin + transitions_.size();
>+  if (begin->unix_time <= -(1LL << 59)) {
>+    // Do not report the BIG_BANG found in recent zoneinfo data as it is
>+    // really a sentinel, not a transition.  See tz/zic.c.
>+    ++begin;
>+  }
>+  std::int_fast64_t unix_time = ToUnixSeconds(tp);
>+  if (FromUnixSeconds(unix_time) != tp) {
>+    if (unix_time == std::numeric_limits<std::int_fast64_t>::max()) {
>+      if (end == begin) return false;  // Ignore future_spec_.
>+      trans->from = (--end)->prev_civil_sec + 1;
>+      trans->to = end->civil_sec;
>+      return true;
>+    }
>+    unix_time += 1;  // ceils
>+  }
>+  const Transition target = { unix_time };
>+  const Transition* tr = std::lower_bound(begin, end, target,
>+                                          Transition::ByUnixTime());
>+  for (; tr != begin; --tr) {  // skip no-op transitions
>+    std::uint_fast8_t prev_type_index =
>+        (tr - 1 == begin) ? default_transition_type_ : tr[-2].type_index;
>+    if (!EquivTransitions(prev_type_index, tr[-1].type_index)) break;
>+  }
>+  // When tr == end we return the "last" transition, ignoring future_spec_.
>+  if (tr == begin) return false;
>+  trans->from = (--tr)->prev_civil_sec + 1;
>+  trans->to = tr->civil_sec;
>+  return true;
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..958e9b6bd744d18c1d2ad8bbfcec99a0028de0b4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.h
>@@ -0,0 +1,136 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_
>+
>+#include <atomic>
>+#include <cstddef>
>+#include <cstdint>
>+#include <string>
>+#include <vector>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+#include "absl/time/internal/cctz/include/cctz/zone_info_source.h"
>+#include "time_zone_if.h"
>+#include "tzfile.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// A transition to a new UTC offset.
>+struct Transition {
>+  std::int_least64_t unix_time;   // the instant of this transition
>+  std::uint_least8_t type_index;  // index of the transition type
>+  civil_second civil_sec;         // local civil time of transition
>+  civil_second prev_civil_sec;    // local civil time one second earlier
>+
>+  struct ByUnixTime {
>+    inline bool operator()(const Transition& lhs, const Transition& rhs) const {
>+      return lhs.unix_time < rhs.unix_time;
>+    }
>+  };
>+  struct ByCivilTime {
>+    inline bool operator()(const Transition& lhs, const Transition& rhs) const {
>+      return lhs.civil_sec < rhs.civil_sec;
>+    }
>+  };
>+};
>+
>+// The characteristics of a particular transition.
>+struct TransitionType {
>+  std::int_least32_t utc_offset;  // the new prevailing UTC offset
>+  civil_second civil_max;         // max convertible civil time for offset
>+  civil_second civil_min;         // min convertible civil time for offset
>+  bool is_dst;                    // did we move into daylight-saving time
>+  std::uint_least8_t abbr_index;  // index of the new abbreviation
>+};
>+
>+// A time zone backed by the IANA Time Zone Database (zoneinfo).
>+class TimeZoneInfo : public TimeZoneIf {
>+ public:
>+  TimeZoneInfo() = default;
>+  TimeZoneInfo(const TimeZoneInfo&) = delete;
>+  TimeZoneInfo& operator=(const TimeZoneInfo&) = delete;
>+
>+  // Loads the zoneinfo for the given name, returning true if successful.
>+  bool Load(const std::string& name);
>+
>+  // TimeZoneIf implementations.
>+  time_zone::absolute_lookup BreakTime(
>+      const time_point<seconds>& tp) const override;
>+  time_zone::civil_lookup MakeTime(
>+      const civil_second& cs) const override;
>+  bool NextTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const override;
>+  bool PrevTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const override;
>+  std::string Version() const override;
>+  std::string Description() const override;
>+
>+ private:
>+  struct Header {  // counts of:
>+    std::size_t timecnt;     // transition times
>+    std::size_t typecnt;     // transition types
>+    std::size_t charcnt;     // zone abbreviation characters
>+    std::size_t leapcnt;     // leap seconds (we expect none)
>+    std::size_t ttisstdcnt;  // UTC/local indicators (unused)
>+    std::size_t ttisgmtcnt;  // standard/wall indicators (unused)
>+
>+    bool Build(const tzhead& tzh);
>+    std::size_t DataLength(std::size_t time_len) const;
>+  };
>+
>+  void CheckTransition(const std::string& name, const TransitionType& tt,
>+                       std::int_fast32_t offset, bool is_dst,
>+                       const std::string& abbr) const;
>+  bool EquivTransitions(std::uint_fast8_t tt1_index,
>+                        std::uint_fast8_t tt2_index) const;
>+  void ExtendTransitions(const std::string& name, const Header& hdr);
>+
>+  bool ResetToBuiltinUTC(const seconds& offset);
>+  bool Load(const std::string& name, ZoneInfoSource* zip);
>+
>+  // Helpers for BreakTime() and MakeTime().
>+  time_zone::absolute_lookup LocalTime(std::int_fast64_t unix_time,
>+                                       const TransitionType& tt) const;
>+  time_zone::absolute_lookup LocalTime(std::int_fast64_t unix_time,
>+                                       const Transition& tr) const;
>+  time_zone::civil_lookup TimeLocal(const civil_second& cs,
>+                                    year_t c4_shift) const;
>+
>+  std::vector<Transition> transitions_;  // ordered by unix_time and civil_sec
>+  std::vector<TransitionType> transition_types_;  // distinct transition types
>+  std::uint_fast8_t default_transition_type_;  // for before first transition
>+  std::string abbreviations_;  // all the NUL-terminated abbreviations
>+
>+  std::string version_;      // the tzdata version if available
>+  std::string future_spec_;  // for after the last zic transition
>+  bool extended_;            // future_spec_ was used to generate transitions
>+  year_t last_year_;         // the final year of the generated transitions
>+
>+  // We remember the transitions found during the last BreakTime() and
>+  // MakeTime() calls. If the next request is for the same transition we
>+  // will avoid re-searching.
>+  mutable std::atomic<std::size_t> local_time_hint_ = {};  // BreakTime() hint
>+  mutable std::atomic<std::size_t> time_local_hint_ = {};  // MakeTime() hint
>+};
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..074c8d0a4a40e13982ab8a4e2b80bf63e13f9ae5
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.cc
>@@ -0,0 +1,162 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#if defined(_WIN32) || defined(_WIN64)
>+#define _CRT_SECURE_NO_WARNINGS 1
>+#endif
>+
>+#include "time_zone_libc.h"
>+
>+#include <chrono>
>+#include <ctime>
>+#include <tuple>
>+#include <utility>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+// .first is seconds east of UTC; .second is the time-zone abbreviation.
>+using OffsetAbbr = std::pair<int, const char*>;
>+
>+// Defines a function that can be called as follows:
>+//
>+//   std::tm tm = ...;
>+//   OffsetAbbr off_abbr = get_offset_abbr(tm);
>+//
>+#if defined(_WIN32) || defined(_WIN64)
>+// Uses the globals: '_timezone', '_dstbias' and '_tzname'.
>+OffsetAbbr get_offset_abbr(const std::tm& tm) {
>+  const bool is_dst = tm.tm_isdst > 0;
>+  const int off = _timezone + (is_dst ? _dstbias : 0);
>+  const char* abbr = _tzname[is_dst];
>+  return {off, abbr};
>+}
>+#elif defined(__sun)
>+// Uses the globals: 'timezone', 'altzone' and 'tzname'.
>+OffsetAbbr get_offset_abbr(const std::tm& tm) {
>+  const bool is_dst = tm.tm_isdst > 0;
>+  const int off = is_dst ? altzone : timezone;
>+  const char* abbr = tzname[is_dst];
>+  return {off, abbr};
>+}
>+#elif defined(__native_client__) || defined(__myriad2__) || \
>+    defined(__EMSCRIPTEN__)
>+// Uses the globals: 'timezone' and 'tzname'.
>+OffsetAbbr get_offset_abbr(const std::tm& tm) {
>+  const bool is_dst = tm.tm_isdst > 0;
>+  const int off = _timezone + (is_dst ? 60 * 60 : 0);
>+  const char* abbr = tzname[is_dst];
>+  return {off, abbr};
>+}
>+#else
>+//
>+// Returns an OffsetAbbr using std::tm fields with various spellings.
>+//
>+#if !defined(tm_gmtoff) && !defined(tm_zone)
>+template <typename T>
>+OffsetAbbr get_offset_abbr(const T& tm, decltype(&T::tm_gmtoff) = nullptr,
>+                           decltype(&T::tm_zone) = nullptr) {
>+  return {tm.tm_gmtoff, tm.tm_zone};
>+}
>+#endif  // !defined(tm_gmtoff) && !defined(tm_zone)
>+#if !defined(__tm_gmtoff) && !defined(__tm_zone)
>+template <typename T>
>+OffsetAbbr get_offset_abbr(const T& tm, decltype(&T::__tm_gmtoff) = nullptr,
>+                           decltype(&T::__tm_zone) = nullptr) {
>+  return {tm.__tm_gmtoff, tm.__tm_zone};
>+}
>+#endif  // !defined(__tm_gmtoff) && !defined(__tm_zone)
>+#endif
>+
>+}  // namespace
>+
>+TimeZoneLibC::TimeZoneLibC(const std::string& name)
>+    : local_(name == "localtime") {}
>+
>+time_zone::absolute_lookup TimeZoneLibC::BreakTime(
>+    const time_point<seconds>& tp) const {
>+  time_zone::absolute_lookup al;
>+  std::time_t t = ToUnixSeconds(tp);
>+  std::tm tm;
>+  if (local_) {
>+#if defined(_WIN32) || defined(_WIN64)
>+    localtime_s(&tm, &t);
>+#else
>+    localtime_r(&t, &tm);
>+#endif
>+    std::tie(al.offset, al.abbr) = get_offset_abbr(tm);
>+  } else {
>+#if defined(_WIN32) || defined(_WIN64)
>+    gmtime_s(&tm, &t);
>+#else
>+    gmtime_r(&t, &tm);
>+#endif
>+    al.offset = 0;
>+    al.abbr = "UTC";
>+  }
>+  al.cs = civil_second(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
>+                       tm.tm_hour, tm.tm_min, tm.tm_sec);
>+  al.is_dst = tm.tm_isdst > 0;
>+  return al;
>+}
>+
>+time_zone::civil_lookup TimeZoneLibC::MakeTime(const civil_second& cs) const {
>+  time_zone::civil_lookup cl;
>+  std::time_t t;
>+  if (local_) {
>+    // Does not handle SKIPPED/AMBIGUOUS or huge years.
>+    std::tm tm;
>+    tm.tm_year = static_cast<int>(cs.year() - 1900);
>+    tm.tm_mon = cs.month() - 1;
>+    tm.tm_mday = cs.day();
>+    tm.tm_hour = cs.hour();
>+    tm.tm_min = cs.minute();
>+    tm.tm_sec = cs.second();
>+    tm.tm_isdst = -1;
>+    t = std::mktime(&tm);
>+  } else {
>+    t = cs - civil_second();
>+  }
>+  cl.kind = time_zone::civil_lookup::UNIQUE;
>+  cl.pre = cl.trans = cl.post = FromUnixSeconds(t);
>+  return cl;
>+}
>+
>+bool TimeZoneLibC::NextTransition(const time_point<seconds>& tp,
>+                                  time_zone::civil_transition* trans) const {
>+  return false;
>+}
>+
>+bool TimeZoneLibC::PrevTransition(const time_point<seconds>& tp,
>+                                  time_zone::civil_transition* trans) const {
>+  return false;
>+}
>+
>+std::string TimeZoneLibC::Version() const {
>+  return std::string();  // unknown
>+}
>+
>+std::string TimeZoneLibC::Description() const {
>+  return local_ ? "localtime" : "UTC";
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..4e40c61ab243d2e3c77c62f71f4107f996e1d8e6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.h
>@@ -0,0 +1,53 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_
>+
>+#include <string>
>+
>+#include "time_zone_if.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// A time zone backed by gmtime_r(3), localtime_r(3), and mktime(3),
>+// and which therefore only supports UTC and the local time zone.
>+// TODO: Add support for fixed offsets from UTC.
>+class TimeZoneLibC : public TimeZoneIf {
>+ public:
>+  explicit TimeZoneLibC(const std::string& name);
>+
>+  // TimeZoneIf implementations.
>+  time_zone::absolute_lookup BreakTime(
>+      const time_point<seconds>& tp) const override;
>+  time_zone::civil_lookup MakeTime(
>+      const civil_second& cs) const override;
>+  bool NextTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const override;
>+  bool PrevTransition(const time_point<seconds>& tp,
>+                      time_zone::civil_transition* trans) const override;
>+  std::string Version() const override;
>+  std::string Description() const override;
>+
>+ private:
>+  const bool local_;  // localtime or UTC
>+};
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..f2d151e4d5e562a00cd73da1ec0d9799e17f7277
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup.cc
>@@ -0,0 +1,168 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+#if defined(__ANDROID__)
>+#include <sys/system_properties.h>
>+#if __ANDROID_API__ >= 21
>+#include <dlfcn.h>
>+#endif
>+#endif
>+#include <cstdlib>
>+#include <cstring>
>+#include <string>
>+
>+#include "time_zone_fixed.h"
>+#include "time_zone_impl.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+#if defined(__ANDROID__) && __ANDROID_API__ >= 21
>+namespace {
>+// Android 'L' removes __system_property_get() from the NDK, however
>+// it is still a hidden symbol in libc so we use dlsym() to access it.
>+// See Chromium's base/sys_info_android.cc for a similar example.
>+
>+using property_get_func = int (*)(const char*, char*);
>+
>+property_get_func LoadSystemPropertyGet() {
>+  int flag = RTLD_LAZY | RTLD_GLOBAL;
>+#if defined(RTLD_NOLOAD)
>+  flag |= RTLD_NOLOAD;  // libc.so should already be resident
>+#endif
>+  if (void* handle = dlopen("libc.so", flag)) {
>+    void* sym = dlsym(handle, "__system_property_get");
>+    dlclose(handle);
>+    return reinterpret_cast<property_get_func>(sym);
>+  }
>+  return nullptr;
>+}
>+
>+int __system_property_get(const char* name, char* value) {
>+  static property_get_func system_property_get = LoadSystemPropertyGet();
>+  return system_property_get ? system_property_get(name, value) : -1;
>+}
>+
>+}  // namespace
>+#endif
>+
>+std::string time_zone::name() const {
>+  return effective_impl().Name();
>+}
>+
>+time_zone::absolute_lookup time_zone::lookup(
>+    const time_point<seconds>& tp) const {
>+  return effective_impl().BreakTime(tp);
>+}
>+
>+time_zone::civil_lookup time_zone::lookup(const civil_second& cs) const {
>+  return effective_impl().MakeTime(cs);
>+}
>+
>+bool time_zone::next_transition(const time_point<seconds>& tp,
>+                                civil_transition* trans) const {
>+  return effective_impl().NextTransition(tp, trans);
>+}
>+
>+bool time_zone::prev_transition(const time_point<seconds>& tp,
>+                                civil_transition* trans) const {
>+  return effective_impl().PrevTransition(tp, trans);
>+}
>+
>+std::string time_zone::version() const {
>+  return effective_impl().Version();
>+}
>+
>+std::string time_zone::description() const {
>+  return effective_impl().Description();
>+}
>+
>+const time_zone::Impl& time_zone::effective_impl() const {
>+  if (impl_ == nullptr) {
>+    // Dereferencing an implicit-UTC time_zone is expected to be
>+    // rare, so we don't mind paying a small synchronization cost.
>+    return *time_zone::Impl::UTC().impl_;
>+  }
>+  return *impl_;
>+}
>+
>+bool load_time_zone(const std::string& name, time_zone* tz) {
>+  return time_zone::Impl::LoadTimeZone(name, tz);
>+}
>+
>+time_zone utc_time_zone() {
>+  return time_zone::Impl::UTC();  // avoid name lookup
>+}
>+
>+time_zone fixed_time_zone(const seconds& offset) {
>+  time_zone tz;
>+  load_time_zone(FixedOffsetToName(offset), &tz);
>+  return tz;
>+}
>+
>+time_zone local_time_zone() {
>+  const char* zone = ":localtime";
>+
>+  // Allow ${TZ} to override to default zone.
>+  char* tz_env = nullptr;
>+#if defined(_MSC_VER)
>+  _dupenv_s(&tz_env, nullptr, "TZ");
>+#else
>+  tz_env = std::getenv("TZ");
>+#endif
>+#if defined(__ANDROID__)
>+  char sysprop[PROP_VALUE_MAX];
>+  if (tz_env == nullptr)
>+    if (__system_property_get("persist.sys.timezone", sysprop) > 0)
>+      tz_env = sysprop;
>+#endif
>+  if (tz_env) zone = tz_env;
>+
>+  // We only support the "[:]<zone-name>" form.
>+  if (*zone == ':') ++zone;
>+
>+  // Map "localtime" to a system-specific name, but
>+  // allow ${LOCALTIME} to override the default name.
>+  char* localtime_env = nullptr;
>+  if (strcmp(zone, "localtime") == 0) {
>+#if defined(_MSC_VER)
>+    // System-specific default is just "localtime".
>+    _dupenv_s(&localtime_env, nullptr, "LOCALTIME");
>+#else
>+    zone = "/etc/localtime";  // System-specific default.
>+    localtime_env = std::getenv("LOCALTIME");
>+#endif
>+    if (localtime_env) zone = localtime_env;
>+  }
>+
>+  const std::string name = zone;
>+#if defined(_MSC_VER)
>+  free(localtime_env);
>+  free(tz_env);
>+#endif
>+
>+  time_zone tz;
>+  load_time_zone(name, &tz);  // Falls back to UTC.
>+  // TODO: Follow the RFC3339 "Unknown Local Offset Convention" and
>+  // arrange for %z to generate "-0000" when we don't know the local
>+  // offset because the load_time_zone() failed and we're using UTC.
>+  return tz;
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..551292fb55e0882d2bbeb1178289540f2e99841c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc
>@@ -0,0 +1,1331 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+#include <chrono>
>+#include <cstddef>
>+#include <future>
>+#include <string>
>+#include <thread>
>+#include <vector>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "gtest/gtest.h"
>+
>+namespace chrono = std::chrono;
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+// A list of known time-zone names.
>+const char* const kTimeZoneNames[] = {
>+  "Africa/Abidjan",
>+  "Africa/Accra",
>+  "Africa/Addis_Ababa",
>+  "Africa/Algiers",
>+  "Africa/Asmara",
>+  "Africa/Asmera",
>+  "Africa/Bamako",
>+  "Africa/Bangui",
>+  "Africa/Banjul",
>+  "Africa/Bissau",
>+  "Africa/Blantyre",
>+  "Africa/Brazzaville",
>+  "Africa/Bujumbura",
>+  "Africa/Cairo",
>+  "Africa/Casablanca",
>+  "Africa/Ceuta",
>+  "Africa/Conakry",
>+  "Africa/Dakar",
>+  "Africa/Dar_es_Salaam",
>+  "Africa/Djibouti",
>+  "Africa/Douala",
>+  "Africa/El_Aaiun",
>+  "Africa/Freetown",
>+  "Africa/Gaborone",
>+  "Africa/Harare",
>+  "Africa/Johannesburg",
>+  "Africa/Juba",
>+  "Africa/Kampala",
>+  "Africa/Khartoum",
>+  "Africa/Kigali",
>+  "Africa/Kinshasa",
>+  "Africa/Lagos",
>+  "Africa/Libreville",
>+  "Africa/Lome",
>+  "Africa/Luanda",
>+  "Africa/Lubumbashi",
>+  "Africa/Lusaka",
>+  "Africa/Malabo",
>+  "Africa/Maputo",
>+  "Africa/Maseru",
>+  "Africa/Mbabane",
>+  "Africa/Mogadishu",
>+  "Africa/Monrovia",
>+  "Africa/Nairobi",
>+  "Africa/Ndjamena",
>+  "Africa/Niamey",
>+  "Africa/Nouakchott",
>+  "Africa/Ouagadougou",
>+  "Africa/Porto-Novo",
>+  "Africa/Sao_Tome",
>+  "Africa/Timbuktu",
>+  "Africa/Tripoli",
>+  "Africa/Tunis",
>+  "Africa/Windhoek",
>+  "America/Adak",
>+  "America/Anchorage",
>+  "America/Anguilla",
>+  "America/Antigua",
>+  "America/Araguaina",
>+  "America/Argentina/Buenos_Aires",
>+  "America/Argentina/Catamarca",
>+  "America/Argentina/ComodRivadavia",
>+  "America/Argentina/Cordoba",
>+  "America/Argentina/Jujuy",
>+  "America/Argentina/La_Rioja",
>+  "America/Argentina/Mendoza",
>+  "America/Argentina/Rio_Gallegos",
>+  "America/Argentina/Salta",
>+  "America/Argentina/San_Juan",
>+  "America/Argentina/San_Luis",
>+  "America/Argentina/Tucuman",
>+  "America/Argentina/Ushuaia",
>+  "America/Aruba",
>+  "America/Asuncion",
>+  "America/Atikokan",
>+  "America/Atka",
>+  "America/Bahia",
>+  "America/Bahia_Banderas",
>+  "America/Barbados",
>+  "America/Belem",
>+  "America/Belize",
>+  "America/Blanc-Sablon",
>+  "America/Boa_Vista",
>+  "America/Bogota",
>+  "America/Boise",
>+  "America/Buenos_Aires",
>+  "America/Cambridge_Bay",
>+  "America/Campo_Grande",
>+  "America/Cancun",
>+  "America/Caracas",
>+  "America/Catamarca",
>+  "America/Cayenne",
>+  "America/Cayman",
>+  "America/Chicago",
>+  "America/Chihuahua",
>+  "America/Coral_Harbour",
>+  "America/Cordoba",
>+  "America/Costa_Rica",
>+  "America/Creston",
>+  "America/Cuiaba",
>+  "America/Curacao",
>+  "America/Danmarkshavn",
>+  "America/Dawson",
>+  "America/Dawson_Creek",
>+  "America/Denver",
>+  "America/Detroit",
>+  "America/Dominica",
>+  "America/Edmonton",
>+  "America/Eirunepe",
>+  "America/El_Salvador",
>+  "America/Ensenada",
>+  "America/Fort_Nelson",
>+  "America/Fort_Wayne",
>+  "America/Fortaleza",
>+  "America/Glace_Bay",
>+  "America/Godthab",
>+  "America/Goose_Bay",
>+  "America/Grand_Turk",
>+  "America/Grenada",
>+  "America/Guadeloupe",
>+  "America/Guatemala",
>+  "America/Guayaquil",
>+  "America/Guyana",
>+  "America/Halifax",
>+  "America/Havana",
>+  "America/Hermosillo",
>+  "America/Indiana/Indianapolis",
>+  "America/Indiana/Knox",
>+  "America/Indiana/Marengo",
>+  "America/Indiana/Petersburg",
>+  "America/Indiana/Tell_City",
>+  "America/Indiana/Vevay",
>+  "America/Indiana/Vincennes",
>+  "America/Indiana/Winamac",
>+  "America/Indianapolis",
>+  "America/Inuvik",
>+  "America/Iqaluit",
>+  "America/Jamaica",
>+  "America/Jujuy",
>+  "America/Juneau",
>+  "America/Kentucky/Louisville",
>+  "America/Kentucky/Monticello",
>+  "America/Knox_IN",
>+  "America/Kralendijk",
>+  "America/La_Paz",
>+  "America/Lima",
>+  "America/Los_Angeles",
>+  "America/Louisville",
>+  "America/Lower_Princes",
>+  "America/Maceio",
>+  "America/Managua",
>+  "America/Manaus",
>+  "America/Marigot",
>+  "America/Martinique",
>+  "America/Matamoros",
>+  "America/Mazatlan",
>+  "America/Mendoza",
>+  "America/Menominee",
>+  "America/Merida",
>+  "America/Metlakatla",
>+  "America/Mexico_City",
>+  "America/Miquelon",
>+  "America/Moncton",
>+  "America/Monterrey",
>+  "America/Montevideo",
>+  "America/Montreal",
>+  "America/Montserrat",
>+  "America/Nassau",
>+  "America/New_York",
>+  "America/Nipigon",
>+  "America/Nome",
>+  "America/Noronha",
>+  "America/North_Dakota/Beulah",
>+  "America/North_Dakota/Center",
>+  "America/North_Dakota/New_Salem",
>+  "America/Ojinaga",
>+  "America/Panama",
>+  "America/Pangnirtung",
>+  "America/Paramaribo",
>+  "America/Phoenix",
>+  "America/Port-au-Prince",
>+  "America/Port_of_Spain",
>+  "America/Porto_Acre",
>+  "America/Porto_Velho",
>+  "America/Puerto_Rico",
>+  "America/Punta_Arenas",
>+  "America/Rainy_River",
>+  "America/Rankin_Inlet",
>+  "America/Recife",
>+  "America/Regina",
>+  "America/Resolute",
>+  "America/Rio_Branco",
>+  "America/Rosario",
>+  "America/Santa_Isabel",
>+  "America/Santarem",
>+  "America/Santiago",
>+  "America/Santo_Domingo",
>+  "America/Sao_Paulo",
>+  "America/Scoresbysund",
>+  "America/Shiprock",
>+  "America/Sitka",
>+  "America/St_Barthelemy",
>+  "America/St_Johns",
>+  "America/St_Kitts",
>+  "America/St_Lucia",
>+  "America/St_Thomas",
>+  "America/St_Vincent",
>+  "America/Swift_Current",
>+  "America/Tegucigalpa",
>+  "America/Thule",
>+  "America/Thunder_Bay",
>+  "America/Tijuana",
>+  "America/Toronto",
>+  "America/Tortola",
>+  "America/Vancouver",
>+  "America/Virgin",
>+  "America/Whitehorse",
>+  "America/Winnipeg",
>+  "America/Yakutat",
>+  "America/Yellowknife",
>+  "Antarctica/Casey",
>+  "Antarctica/Davis",
>+  "Antarctica/DumontDUrville",
>+  "Antarctica/Macquarie",
>+  "Antarctica/Mawson",
>+  "Antarctica/McMurdo",
>+  "Antarctica/Palmer",
>+  "Antarctica/Rothera",
>+  "Antarctica/South_Pole",
>+  "Antarctica/Syowa",
>+  "Antarctica/Troll",
>+  "Antarctica/Vostok",
>+  "Arctic/Longyearbyen",
>+  "Asia/Aden",
>+  "Asia/Almaty",
>+  "Asia/Amman",
>+  "Asia/Anadyr",
>+  "Asia/Aqtau",
>+  "Asia/Aqtobe",
>+  "Asia/Ashgabat",
>+  "Asia/Ashkhabad",
>+  "Asia/Atyrau",
>+  "Asia/Baghdad",
>+  "Asia/Bahrain",
>+  "Asia/Baku",
>+  "Asia/Bangkok",
>+  "Asia/Barnaul",
>+  "Asia/Beirut",
>+  "Asia/Bishkek",
>+  "Asia/Brunei",
>+  "Asia/Calcutta",
>+  "Asia/Chita",
>+  "Asia/Choibalsan",
>+  "Asia/Chongqing",
>+  "Asia/Chungking",
>+  "Asia/Colombo",
>+  "Asia/Dacca",
>+  "Asia/Damascus",
>+  "Asia/Dhaka",
>+  "Asia/Dili",
>+  "Asia/Dubai",
>+  "Asia/Dushanbe",
>+  "Asia/Famagusta",
>+  "Asia/Gaza",
>+  "Asia/Harbin",
>+  "Asia/Hebron",
>+  "Asia/Ho_Chi_Minh",
>+  "Asia/Hong_Kong",
>+  "Asia/Hovd",
>+  "Asia/Irkutsk",
>+  "Asia/Istanbul",
>+  "Asia/Jakarta",
>+  "Asia/Jayapura",
>+  "Asia/Jerusalem",
>+  "Asia/Kabul",
>+  "Asia/Kamchatka",
>+  "Asia/Karachi",
>+  "Asia/Kashgar",
>+  "Asia/Kathmandu",
>+  "Asia/Katmandu",
>+  "Asia/Khandyga",
>+  "Asia/Kolkata",
>+  "Asia/Krasnoyarsk",
>+  "Asia/Kuala_Lumpur",
>+  "Asia/Kuching",
>+  "Asia/Kuwait",
>+  "Asia/Macao",
>+  "Asia/Macau",
>+  "Asia/Magadan",
>+  "Asia/Makassar",
>+  "Asia/Manila",
>+  "Asia/Muscat",
>+  "Asia/Nicosia",
>+  "Asia/Novokuznetsk",
>+  "Asia/Novosibirsk",
>+  "Asia/Omsk",
>+  "Asia/Oral",
>+  "Asia/Phnom_Penh",
>+  "Asia/Pontianak",
>+  "Asia/Pyongyang",
>+  "Asia/Qatar",
>+  "Asia/Qyzylorda",
>+  "Asia/Rangoon",
>+  "Asia/Riyadh",
>+  "Asia/Saigon",
>+  "Asia/Sakhalin",
>+  "Asia/Samarkand",
>+  "Asia/Seoul",
>+  "Asia/Shanghai",
>+  "Asia/Singapore",
>+  "Asia/Srednekolymsk",
>+  "Asia/Taipei",
>+  "Asia/Tashkent",
>+  "Asia/Tbilisi",
>+  "Asia/Tehran",
>+  "Asia/Tel_Aviv",
>+  "Asia/Thimbu",
>+  "Asia/Thimphu",
>+  "Asia/Tokyo",
>+  "Asia/Tomsk",
>+  "Asia/Ujung_Pandang",
>+  "Asia/Ulaanbaatar",
>+  "Asia/Ulan_Bator",
>+  "Asia/Urumqi",
>+  "Asia/Ust-Nera",
>+  "Asia/Vientiane",
>+  "Asia/Vladivostok",
>+  "Asia/Yakutsk",
>+  "Asia/Yangon",
>+  "Asia/Yekaterinburg",
>+  "Asia/Yerevan",
>+  "Atlantic/Azores",
>+  "Atlantic/Bermuda",
>+  "Atlantic/Canary",
>+  "Atlantic/Cape_Verde",
>+  "Atlantic/Faeroe",
>+  "Atlantic/Faroe",
>+  "Atlantic/Jan_Mayen",
>+  "Atlantic/Madeira",
>+  "Atlantic/Reykjavik",
>+  "Atlantic/South_Georgia",
>+  "Atlantic/St_Helena",
>+  "Atlantic/Stanley",
>+  "Australia/ACT",
>+  "Australia/Adelaide",
>+  "Australia/Brisbane",
>+  "Australia/Broken_Hill",
>+  "Australia/Canberra",
>+  "Australia/Currie",
>+  "Australia/Darwin",
>+  "Australia/Eucla",
>+  "Australia/Hobart",
>+  "Australia/LHI",
>+  "Australia/Lindeman",
>+  "Australia/Lord_Howe",
>+  "Australia/Melbourne",
>+  "Australia/NSW",
>+  "Australia/North",
>+  "Australia/Perth",
>+  "Australia/Queensland",
>+  "Australia/South",
>+  "Australia/Sydney",
>+  "Australia/Tasmania",
>+  "Australia/Victoria",
>+  "Australia/West",
>+  "Australia/Yancowinna",
>+  "Brazil/Acre",
>+  "Brazil/DeNoronha",
>+  "Brazil/East",
>+  "Brazil/West",
>+  "CET",
>+  "CST6CDT",
>+  "Canada/Atlantic",
>+  "Canada/Central",
>+  "Canada/Eastern",
>+  "Canada/Mountain",
>+  "Canada/Newfoundland",
>+  "Canada/Pacific",
>+  "Canada/Saskatchewan",
>+  "Canada/Yukon",
>+  "Chile/Continental",
>+  "Chile/EasterIsland",
>+  "Cuba",
>+  "EET",
>+  "EST",
>+  "EST5EDT",
>+  "Egypt",
>+  "Eire",
>+  "Etc/GMT",
>+  "Etc/GMT+0",
>+  "Etc/GMT+1",
>+  "Etc/GMT+10",
>+  "Etc/GMT+11",
>+  "Etc/GMT+12",
>+  "Etc/GMT+2",
>+  "Etc/GMT+3",
>+  "Etc/GMT+4",
>+  "Etc/GMT+5",
>+  "Etc/GMT+6",
>+  "Etc/GMT+7",
>+  "Etc/GMT+8",
>+  "Etc/GMT+9",
>+  "Etc/GMT-0",
>+  "Etc/GMT-1",
>+  "Etc/GMT-10",
>+  "Etc/GMT-11",
>+  "Etc/GMT-12",
>+  "Etc/GMT-13",
>+  "Etc/GMT-14",
>+  "Etc/GMT-2",
>+  "Etc/GMT-3",
>+  "Etc/GMT-4",
>+  "Etc/GMT-5",
>+  "Etc/GMT-6",
>+  "Etc/GMT-7",
>+  "Etc/GMT-8",
>+  "Etc/GMT-9",
>+  "Etc/GMT0",
>+  "Etc/Greenwich",
>+  "Etc/UCT",
>+  "Etc/UTC",
>+  "Etc/Universal",
>+  "Etc/Zulu",
>+  "Europe/Amsterdam",
>+  "Europe/Andorra",
>+  "Europe/Astrakhan",
>+  "Europe/Athens",
>+  "Europe/Belfast",
>+  "Europe/Belgrade",
>+  "Europe/Berlin",
>+  "Europe/Bratislava",
>+  "Europe/Brussels",
>+  "Europe/Bucharest",
>+  "Europe/Budapest",
>+  "Europe/Busingen",
>+  "Europe/Chisinau",
>+  "Europe/Copenhagen",
>+  "Europe/Dublin",
>+  "Europe/Gibraltar",
>+  "Europe/Guernsey",
>+  "Europe/Helsinki",
>+  "Europe/Isle_of_Man",
>+  "Europe/Istanbul",
>+  "Europe/Jersey",
>+  "Europe/Kaliningrad",
>+  "Europe/Kiev",
>+  "Europe/Kirov",
>+  "Europe/Lisbon",
>+  "Europe/Ljubljana",
>+  "Europe/London",
>+  "Europe/Luxembourg",
>+  "Europe/Madrid",
>+  "Europe/Malta",
>+  "Europe/Mariehamn",
>+  "Europe/Minsk",
>+  "Europe/Monaco",
>+  "Europe/Moscow",
>+  "Europe/Nicosia",
>+  "Europe/Oslo",
>+  "Europe/Paris",
>+  "Europe/Podgorica",
>+  "Europe/Prague",
>+  "Europe/Riga",
>+  "Europe/Rome",
>+  "Europe/Samara",
>+  "Europe/San_Marino",
>+  "Europe/Sarajevo",
>+  "Europe/Saratov",
>+  "Europe/Simferopol",
>+  "Europe/Skopje",
>+  "Europe/Sofia",
>+  "Europe/Stockholm",
>+  "Europe/Tallinn",
>+  "Europe/Tirane",
>+  "Europe/Tiraspol",
>+  "Europe/Ulyanovsk",
>+  "Europe/Uzhgorod",
>+  "Europe/Vaduz",
>+  "Europe/Vatican",
>+  "Europe/Vienna",
>+  "Europe/Vilnius",
>+  "Europe/Volgograd",
>+  "Europe/Warsaw",
>+  "Europe/Zagreb",
>+  "Europe/Zaporozhye",
>+  "Europe/Zurich",
>+  "GB",
>+  "GB-Eire",
>+  "GMT",
>+  "GMT+0",
>+  "GMT-0",
>+  "GMT0",
>+  "Greenwich",
>+  "HST",
>+  "Hongkong",
>+  "Iceland",
>+  "Indian/Antananarivo",
>+  "Indian/Chagos",
>+  "Indian/Christmas",
>+  "Indian/Cocos",
>+  "Indian/Comoro",
>+  "Indian/Kerguelen",
>+  "Indian/Mahe",
>+  "Indian/Maldives",
>+  "Indian/Mauritius",
>+  "Indian/Mayotte",
>+  "Indian/Reunion",
>+  "Iran",
>+  "Israel",
>+  "Jamaica",
>+  "Japan",
>+  "Kwajalein",
>+  "Libya",
>+  "MET",
>+  "MST",
>+  "MST7MDT",
>+  "Mexico/BajaNorte",
>+  "Mexico/BajaSur",
>+  "Mexico/General",
>+  "NZ",
>+  "NZ-CHAT",
>+  "Navajo",
>+  "PRC",
>+  "PST8PDT",
>+  "Pacific/Apia",
>+  "Pacific/Auckland",
>+  "Pacific/Bougainville",
>+  "Pacific/Chatham",
>+  "Pacific/Chuuk",
>+  "Pacific/Easter",
>+  "Pacific/Efate",
>+  "Pacific/Enderbury",
>+  "Pacific/Fakaofo",
>+  "Pacific/Fiji",
>+  "Pacific/Funafuti",
>+  "Pacific/Galapagos",
>+  "Pacific/Gambier",
>+  "Pacific/Guadalcanal",
>+  "Pacific/Guam",
>+  "Pacific/Honolulu",
>+  "Pacific/Johnston",
>+  "Pacific/Kiritimati",
>+  "Pacific/Kosrae",
>+  "Pacific/Kwajalein",
>+  "Pacific/Majuro",
>+  "Pacific/Marquesas",
>+  "Pacific/Midway",
>+  "Pacific/Nauru",
>+  "Pacific/Niue",
>+  "Pacific/Norfolk",
>+  "Pacific/Noumea",
>+  "Pacific/Pago_Pago",
>+  "Pacific/Palau",
>+  "Pacific/Pitcairn",
>+  "Pacific/Pohnpei",
>+  "Pacific/Ponape",
>+  "Pacific/Port_Moresby",
>+  "Pacific/Rarotonga",
>+  "Pacific/Saipan",
>+  "Pacific/Samoa",
>+  "Pacific/Tahiti",
>+  "Pacific/Tarawa",
>+  "Pacific/Tongatapu",
>+  "Pacific/Truk",
>+  "Pacific/Wake",
>+  "Pacific/Wallis",
>+  "Pacific/Yap",
>+  "Poland",
>+  "Portugal",
>+  "ROC",
>+  "ROK",
>+  "Singapore",
>+  "Turkey",
>+  "UCT",
>+  "US/Alaska",
>+  "US/Aleutian",
>+  "US/Arizona",
>+  "US/Central",
>+  "US/East-Indiana",
>+  "US/Eastern",
>+  "US/Hawaii",
>+  "US/Indiana-Starke",
>+  "US/Michigan",
>+  "US/Mountain",
>+  "US/Pacific",
>+  "US/Samoa",
>+  "UTC",
>+  "Universal",
>+  "W-SU",
>+  "WET",
>+  "Zulu",
>+  nullptr
>+};
>+
>+// Helper to return a loaded time zone by value (UTC on error).
>+time_zone LoadZone(const std::string& name) {
>+  time_zone tz;
>+  load_time_zone(name, &tz);
>+  return tz;
>+}
>+
>+// This helper is a macro so that failed expectations show up with the
>+// correct line numbers.
>+#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \
>+  do {                                                            \
>+    time_zone::absolute_lookup al = tz.lookup(tp);                \
>+    EXPECT_EQ(y, al.cs.year());                                   \
>+    EXPECT_EQ(m, al.cs.month());                                  \
>+    EXPECT_EQ(d, al.cs.day());                                    \
>+    EXPECT_EQ(hh, al.cs.hour());                                  \
>+    EXPECT_EQ(mm, al.cs.minute());                                \
>+    EXPECT_EQ(ss, al.cs.second());                                \
>+    EXPECT_EQ(off, al.offset);                                    \
>+    EXPECT_TRUE(isdst == al.is_dst);                              \
>+    /* EXPECT_STREQ(zone, al.abbr); */                            \
>+  } while (0)
>+
>+// These tests sometimes run on platforms that have zoneinfo data so old
>+// that the transition we are attempting to check does not exist, most
>+// notably Android emulators.  Fortunately, AndroidZoneInfoSource supports
>+// time_zone::version() so, in cases where we've learned that it matters,
>+// we can make the check conditionally.
>+int VersionCmp(time_zone tz, const std::string& target) {
>+  std::string version = tz.version();
>+  if (version.empty() && !target.empty()) return 1;  // unknown > known
>+  return version.compare(target);
>+}
>+
>+}  // namespace
>+
>+TEST(TimeZones, LoadZonesConcurrently) {
>+  std::promise<void> ready_promise;
>+  std::shared_future<void> ready_future(ready_promise.get_future());
>+  auto load_zones = [ready_future](std::promise<void>* started,
>+                                   std::set<std::string>* failures) {
>+    started->set_value();
>+    ready_future.wait();
>+    for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) {
>+      std::string zone = *np;
>+      time_zone tz;
>+      if (load_time_zone(zone, &tz)) {
>+        EXPECT_EQ(zone, tz.name());
>+      } else {
>+        failures->insert(zone);
>+      }
>+    }
>+  };
>+
>+  const std::size_t n_threads = 128;
>+  std::vector<std::thread> threads;
>+  std::vector<std::set<std::string>> thread_failures(n_threads);
>+  for (std::size_t i = 0; i != n_threads; ++i) {
>+    std::promise<void> started;
>+    threads.emplace_back(load_zones, &started, &thread_failures[i]);
>+    started.get_future().wait();
>+  }
>+  ready_promise.set_value();
>+  for (auto& thread : threads) {
>+    thread.join();
>+  }
>+
>+  // Allow a small number of failures to account for skew between
>+  // the contents of kTimeZoneNames and the zoneinfo data source.
>+#if defined(__ANDROID__)
>+  // Cater to the possibility of using an even older zoneinfo data
>+  // source when running on Android, where it is difficult to override
>+  // the bionic tzdata provided by the test environment.
>+  const std::size_t max_failures = 20;
>+#else
>+  const std::size_t max_failures = 3;
>+#endif
>+  std::set<std::string> failures;
>+  for (const auto& thread_failure : thread_failures) {
>+    failures.insert(thread_failure.begin(), thread_failure.end());
>+  }
>+  EXPECT_LE(failures.size(), max_failures) << testing::PrintToString(failures);
>+}
>+
>+TEST(TimeZone, NamedTimeZones) {
>+  const time_zone utc = utc_time_zone();
>+  EXPECT_EQ("UTC", utc.name());
>+  const time_zone nyc = LoadZone("America/New_York");
>+  EXPECT_EQ("America/New_York", nyc.name());
>+  const time_zone syd = LoadZone("Australia/Sydney");
>+  EXPECT_EQ("Australia/Sydney", syd.name());
>+  const time_zone fixed0 = fixed_time_zone(absl::time_internal::cctz::seconds::zero());
>+  EXPECT_EQ("UTC", fixed0.name());
>+  const time_zone fixed_pos = fixed_time_zone(
>+      chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45));
>+  EXPECT_EQ("Fixed/UTC+03:25:45", fixed_pos.name());
>+  const time_zone fixed_neg = fixed_time_zone(
>+      -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56)));
>+  EXPECT_EQ("Fixed/UTC-12:34:56", fixed_neg.name());
>+}
>+
>+TEST(TimeZone, Failures) {
>+  time_zone tz;
>+  EXPECT_FALSE(load_time_zone(":America/Los_Angeles", &tz));
>+
>+  tz = LoadZone("America/Los_Angeles");
>+  EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(0),
>+            convert(civil_second(1970, 1, 1, 0, 0, 0), tz));  // UTC
>+
>+  // Ensures that the load still fails on a subsequent attempt.
>+  tz = LoadZone("America/Los_Angeles");
>+  EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(0),
>+            convert(civil_second(1970, 1, 1, 0, 0, 0), tz));  // UTC
>+
>+  // Loading an empty std::string timezone should fail.
>+  tz = LoadZone("America/Los_Angeles");
>+  EXPECT_FALSE(load_time_zone("", &tz));
>+  EXPECT_EQ(chrono::system_clock::from_time_t(0),
>+            convert(civil_second(1970, 1, 1, 0, 0, 0), tz));  // UTC
>+}
>+
>+TEST(TimeZone, Equality) {
>+  const time_zone a;
>+  const time_zone b;
>+  EXPECT_EQ(a, b);
>+  EXPECT_EQ(a.name(), b.name());
>+
>+  const time_zone implicit_utc;
>+  const time_zone explicit_utc = utc_time_zone();
>+  EXPECT_EQ(implicit_utc, explicit_utc);
>+  EXPECT_EQ(implicit_utc.name(), explicit_utc.name());
>+
>+  const time_zone fixed_zero = fixed_time_zone(absl::time_internal::cctz::seconds::zero());
>+  EXPECT_EQ(fixed_zero, LoadZone(fixed_zero.name()));
>+  EXPECT_EQ(fixed_zero, explicit_utc);
>+
>+  const time_zone fixed_utc = LoadZone("Fixed/UTC+00:00:00");
>+  EXPECT_EQ(fixed_utc, LoadZone(fixed_utc.name()));
>+  EXPECT_EQ(fixed_utc, explicit_utc);
>+
>+  const time_zone fixed_pos = fixed_time_zone(
>+      chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45));
>+  EXPECT_EQ(fixed_pos, LoadZone(fixed_pos.name()));
>+  EXPECT_NE(fixed_pos, explicit_utc);
>+  const time_zone fixed_neg = fixed_time_zone(
>+      -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56)));
>+  EXPECT_EQ(fixed_neg, LoadZone(fixed_neg.name()));
>+  EXPECT_NE(fixed_neg, explicit_utc);
>+
>+  const time_zone fixed_lim = fixed_time_zone(chrono::hours(24));
>+  EXPECT_EQ(fixed_lim, LoadZone(fixed_lim.name()));
>+  EXPECT_NE(fixed_lim, explicit_utc);
>+  const time_zone fixed_ovfl =
>+      fixed_time_zone(chrono::hours(24) + chrono::seconds(1));
>+  EXPECT_EQ(fixed_ovfl, LoadZone(fixed_ovfl.name()));
>+  EXPECT_EQ(fixed_ovfl, explicit_utc);
>+
>+  EXPECT_EQ(fixed_time_zone(chrono::seconds(1)),
>+            fixed_time_zone(chrono::seconds(1)));
>+
>+  const time_zone local = local_time_zone();
>+  EXPECT_EQ(local, LoadZone(local.name()));
>+
>+  time_zone la = LoadZone("America/Los_Angeles");
>+  time_zone nyc = LoadZone("America/New_York");
>+  EXPECT_NE(la, nyc);
>+}
>+
>+TEST(StdChronoTimePoint, TimeTAlignment) {
>+  // Ensures that the Unix epoch and the system clock epoch are an integral
>+  // number of seconds apart. This simplifies conversions to/from time_t.
>+  auto diff = chrono::system_clock::time_point() -
>+              chrono::system_clock::from_time_t(0);
>+  EXPECT_EQ(chrono::system_clock::time_point::duration::zero(),
>+            diff % chrono::seconds(1));
>+}
>+
>+TEST(BreakTime, TimePointResolution) {
>+  const time_zone utc = utc_time_zone();
>+  const auto t0 = chrono::system_clock::from_time_t(0);
>+
>+  ExpectTime(chrono::time_point_cast<chrono::nanoseconds>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<chrono::microseconds>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<chrono::milliseconds>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<chrono::seconds>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<chrono::minutes>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  ExpectTime(chrono::time_point_cast<chrono::hours>(t0), utc,
>+             1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+}
>+
>+TEST(BreakTime, LocalTimeInUTC) {
>+  const time_zone tz = utc_time_zone();
>+  const auto tp = chrono::system_clock::from_time_t(0);
>+  ExpectTime(tp, tz, 1970, 1, 1, 0, 0, 0, 0, false, "UTC");
>+  EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(BreakTime, LocalTimeInUTCUnaligned) {
>+  const time_zone tz = utc_time_zone();
>+  const auto tp =
>+      chrono::system_clock::from_time_t(0) - chrono::milliseconds(500);
>+  ExpectTime(tp, tz, 1969, 12, 31, 23, 59, 59, 0, false, "UTC");
>+  EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(BreakTime, LocalTimePosix) {
>+  // See IEEE Std 1003.1-1988 B.2.3 General Terms, Epoch.
>+  const time_zone tz = utc_time_zone();
>+  const auto tp = chrono::system_clock::from_time_t(536457599);
>+  ExpectTime(tp, tz, 1986, 12, 31, 23, 59, 59, 0, false, "UTC");
>+  EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(TimeZoneImpl, LocalTimeInFixed) {
>+  const absl::time_internal::cctz::seconds offset =
>+      -(chrono::hours(8) + chrono::minutes(33) + chrono::seconds(47));
>+  const time_zone tz = fixed_time_zone(offset);
>+  const auto tp = chrono::system_clock::from_time_t(0);
>+  ExpectTime(tp, tz, 1969, 12, 31, 15, 26, 13, offset.count(), false,
>+             "-083347");
>+  EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(BreakTime, LocalTimeInNewYork) {
>+  const time_zone tz = LoadZone("America/New_York");
>+  const auto tp = chrono::system_clock::from_time_t(45);
>+  ExpectTime(tp, tz, 1969, 12, 31, 19, 0, 45, -5 * 60 * 60, false, "EST");
>+  EXPECT_EQ(weekday::wednesday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(BreakTime, LocalTimeInMTV) {
>+  const time_zone tz = LoadZone("America/Los_Angeles");
>+  const auto tp = chrono::system_clock::from_time_t(1380855729);
>+  ExpectTime(tp, tz, 2013, 10, 3, 20, 2, 9, -7 * 60 * 60, true, "PDT");
>+  EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(BreakTime, LocalTimeInSydney) {
>+  const time_zone tz = LoadZone("Australia/Sydney");
>+  const auto tp = chrono::system_clock::from_time_t(90);
>+  ExpectTime(tp, tz, 1970, 1, 1, 10, 1, 30, 10 * 60 * 60, false, "AEST");
>+  EXPECT_EQ(weekday::thursday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(MakeTime, TimePointResolution) {
>+  const time_zone utc = utc_time_zone();
>+  const time_point<chrono::nanoseconds> tp_ns =
>+      convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
>+  EXPECT_EQ("04:05", format("%M:%E*S", tp_ns, utc));
>+  const time_point<chrono::microseconds> tp_us =
>+      convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
>+  EXPECT_EQ("04:05", format("%M:%E*S", tp_us, utc));
>+  const time_point<chrono::milliseconds> tp_ms =
>+      convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
>+  EXPECT_EQ("04:05", format("%M:%E*S", tp_ms, utc));
>+  const time_point<chrono::seconds> tp_s =
>+      convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
>+  EXPECT_EQ("04:05", format("%M:%E*S", tp_s, utc));
>+  const time_point<absl::time_internal::cctz::seconds> tp_s64 =
>+      convert(civil_second(2015, 1, 2, 3, 4, 5), utc);
>+  EXPECT_EQ("04:05", format("%M:%E*S", tp_s64, utc));
>+
>+  // These next two require chrono::time_point_cast because the conversion
>+  // from a resolution of seconds (the return value of convert()) to a
>+  // coarser resolution requires an explicit cast.
>+  const time_point<chrono::minutes> tp_m =
>+      chrono::time_point_cast<chrono::minutes>(
>+          convert(civil_second(2015, 1, 2, 3, 4, 5), utc));
>+  EXPECT_EQ("04:00", format("%M:%E*S", tp_m, utc));
>+  const time_point<chrono::hours> tp_h =
>+      chrono::time_point_cast<chrono::hours>(
>+          convert(civil_second(2015, 1, 2, 3, 4, 5), utc));
>+  EXPECT_EQ("00:00", format("%M:%E*S", tp_h, utc));
>+}
>+
>+TEST(MakeTime, Normalization) {
>+  const time_zone tz = LoadZone("America/New_York");
>+  const auto tp = convert(civil_second(2009, 2, 13, 18, 31, 30), tz);
>+  EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp);
>+
>+  // Now requests for the same time_point but with out-of-range fields.
>+  EXPECT_EQ(tp, convert(civil_second(2008, 14, 13, 18, 31, 30), tz));  // month
>+  EXPECT_EQ(tp, convert(civil_second(2009, 1, 44, 18, 31, 30), tz));   // day
>+  EXPECT_EQ(tp, convert(civil_second(2009, 2, 12, 42, 31, 30), tz));   // hour
>+  EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 17, 91, 30), tz));   // minute
>+  EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 18, 30, 90), tz));   // second
>+}
>+
>+// NOTE: Run this with --copt=-ftrapv to detect overflow problems.
>+TEST(MakeTime, SysSecondsLimits) {
>+  const char RFC3339[] =  "%Y-%m-%dT%H:%M:%S%Ez";
>+  const time_zone utc = utc_time_zone();
>+  const time_zone east = fixed_time_zone(chrono::hours(14));
>+  const time_zone west = fixed_time_zone(-chrono::hours(14));
>+  time_point<absl::time_internal::cctz::seconds> tp;
>+
>+  // Approach the maximal time_point<cctz::seconds> value from below.
>+  tp = convert(civil_second(292277026596, 12, 4, 15, 30, 6), utc);
>+  EXPECT_EQ("292277026596-12-04T15:30:06+00:00", format(RFC3339, tp, utc));
>+  tp = convert(civil_second(292277026596, 12, 4, 15, 30, 7), utc);
>+  EXPECT_EQ("292277026596-12-04T15:30:07+00:00", format(RFC3339, tp, utc));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second(292277026596, 12, 4, 15, 30, 8), utc);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second::max(), utc);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+
>+  // Checks that we can also get the maximal value for a far-east zone.
>+  tp = convert(civil_second(292277026596, 12, 5, 5, 30, 7), east);
>+  EXPECT_EQ("292277026596-12-05T05:30:07+14:00", format(RFC3339, tp, east));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second(292277026596, 12, 5, 5, 30, 8), east);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second::max(), east);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+
>+  // Checks that we can also get the maximal value for a far-west zone.
>+  tp = convert(civil_second(292277026596, 12, 4, 1, 30, 7), west);
>+  EXPECT_EQ("292277026596-12-04T01:30:07-14:00", format(RFC3339, tp, west));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second(292277026596, 12, 4, 7, 30, 8), west);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+  tp = convert(civil_second::max(), west);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp);
>+
>+  // Approach the minimal time_point<cctz::seconds> value from above.
>+  tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 53), utc);
>+  EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", format(RFC3339, tp, utc));
>+  tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 52), utc);
>+  EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", format(RFC3339, tp, utc));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 51), utc);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second::min(), utc);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+
>+  // Checks that we can also get the minimal value for a far-east zone.
>+  tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 52), east);
>+  EXPECT_EQ("-292277022657-01-27T22:29:52+14:00", format(RFC3339, tp, east));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 51), east);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second::min(), east);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+
>+  // Checks that we can also get the minimal value for a far-west zone.
>+  tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 52), west);
>+  EXPECT_EQ("-292277022657-01-26T18:29:52-14:00", format(RFC3339, tp, west));
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 51), west);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+  tp = convert(civil_second::min(), west);
>+  EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp);
>+}
>+
>+TEST(NextTransition, UTC) {
>+  const auto tz = utc_time_zone();
>+  time_zone::civil_transition trans;
>+
>+  auto tp = time_point<absl::time_internal::cctz::seconds>::min();
>+  EXPECT_FALSE(tz.next_transition(tp, &trans));
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::max();
>+  EXPECT_FALSE(tz.next_transition(tp, &trans));
>+}
>+
>+TEST(PrevTransition, UTC) {
>+  const auto tz = utc_time_zone();
>+  time_zone::civil_transition trans;
>+
>+  auto tp = time_point<absl::time_internal::cctz::seconds>::max();
>+  EXPECT_FALSE(tz.prev_transition(tp, &trans));
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::min();
>+  EXPECT_FALSE(tz.prev_transition(tp, &trans));
>+}
>+
>+TEST(NextTransition, AmericaNewYork) {
>+  const auto tz = LoadZone("America/New_York");
>+  time_zone::civil_transition trans;
>+
>+  auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz);
>+  EXPECT_TRUE(tz.next_transition(tp, &trans));
>+  EXPECT_EQ(civil_second(2018, 11, 4, 2, 0, 0), trans.from);
>+  EXPECT_EQ(civil_second(2018, 11, 4, 1, 0, 0), trans.to);
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::max();
>+  EXPECT_FALSE(tz.next_transition(tp, &trans));
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::min();
>+  EXPECT_TRUE(tz.next_transition(tp, &trans));
>+  if (trans.from == civil_second(1918, 3, 31, 2, 0, 0)) {
>+    // It looks like the tzdata is only 32 bit (probably macOS),
>+    // which bottoms out at 1901-12-13T20:45:52+00:00.
>+    EXPECT_EQ(civil_second(1918, 3, 31, 3, 0, 0), trans.to);
>+  } else {
>+    EXPECT_EQ(civil_second(1883, 11, 18, 12, 3, 58), trans.from);
>+    EXPECT_EQ(civil_second(1883, 11, 18, 12, 0, 0), trans.to);
>+  }
>+}
>+
>+TEST(PrevTransition, AmericaNewYork) {
>+  const auto tz = LoadZone("America/New_York");
>+  time_zone::civil_transition trans;
>+
>+  auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz);
>+  EXPECT_TRUE(tz.prev_transition(tp, &trans));
>+  EXPECT_EQ(civil_second(2018, 3, 11, 2, 0, 0), trans.from);
>+  EXPECT_EQ(civil_second(2018, 3, 11, 3, 0, 0), trans.to);
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::min();
>+  EXPECT_FALSE(tz.prev_transition(tp, &trans));
>+
>+  tp = time_point<absl::time_internal::cctz::seconds>::max();
>+  EXPECT_TRUE(tz.prev_transition(tp, &trans));
>+  // We have a transition but we don't know which one.
>+}
>+
>+TEST(TimeZoneEdgeCase, AmericaNewYork) {
>+  const time_zone tz = LoadZone("America/New_York");
>+
>+  // Spring 1:59:59 -> 3:00:00
>+  auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -5 * 3600, false, "EST");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -4 * 3600, true, "EDT");
>+
>+  // Fall 1:59:59 -> 1:00:00
>+  tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -4 * 3600, true, "EDT");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -5 * 3600, false, "EST");
>+}
>+
>+TEST(TimeZoneEdgeCase, AmericaLosAngeles) {
>+  const time_zone tz = LoadZone("America/Los_Angeles");
>+
>+  // Spring 1:59:59 -> 3:00:00
>+  auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -8 * 3600, false, "PST");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -7 * 3600, true, "PDT");
>+
>+  // Fall 1:59:59 -> 1:00:00
>+  tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, true, "PDT");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -8 * 3600, false, "PST");
>+}
>+
>+TEST(TimeZoneEdgeCase, ArizonaNoTransition) {
>+  const time_zone tz = LoadZone("America/Phoenix");
>+
>+  // No transition in Spring.
>+  auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -7 * 3600, false, "MST");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 3, 10, 2, 0, 0, -7 * 3600, false, "MST");
>+
>+  // No transition in Fall.
>+  tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, false, "MST");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 11, 3, 2, 0, 0, -7 * 3600, false, "MST");
>+}
>+
>+TEST(TimeZoneEdgeCase, AsiaKathmandu) {
>+  const time_zone tz = LoadZone("Asia/Kathmandu");
>+
>+  // A non-DST offset change from +0530 to +0545
>+  //
>+  //   504901799 == Tue, 31 Dec 1985 23:59:59 +0530 (+0530)
>+  //   504901800 == Wed,  1 Jan 1986 00:15:00 +0545 (+0545)
>+  auto tp = convert(civil_second(1985, 12, 31, 23, 59, 59), tz);
>+  ExpectTime(tp, tz, 1985, 12, 31, 23, 59, 59, 5.5 * 3600, false, "+0530");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 1986, 1, 1, 0, 15, 0, 5.75 * 3600, false, "+0545");
>+}
>+
>+TEST(TimeZoneEdgeCase, PacificChatham) {
>+  const time_zone tz = LoadZone("Pacific/Chatham");
>+
>+  // One-hour DST offset changes, but at atypical values
>+  //
>+  //   1365256799 == Sun,  7 Apr 2013 03:44:59 +1345 (+1345)
>+  //   1365256800 == Sun,  7 Apr 2013 02:45:00 +1245 (+1245)
>+  auto tp = convert(civil_second(2013, 4, 7, 3, 44, 59), tz);
>+  ExpectTime(tp, tz, 2013, 4, 7, 3, 44, 59, 13.75 * 3600, true, "+1345");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 4, 7, 2, 45, 0, 12.75 * 3600, false, "+1245");
>+
>+  //   1380376799 == Sun, 29 Sep 2013 02:44:59 +1245 (+1245)
>+  //   1380376800 == Sun, 29 Sep 2013 03:45:00 +1345 (+1345)
>+  tp = convert(civil_second(2013, 9, 29, 2, 44, 59), tz);
>+  ExpectTime(tp, tz, 2013, 9, 29, 2, 44, 59, 12.75 * 3600, false, "+1245");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 9, 29, 3, 45, 0, 13.75 * 3600, true, "+1345");
>+}
>+
>+TEST(TimeZoneEdgeCase, AustraliaLordHowe) {
>+  const time_zone tz = LoadZone("Australia/Lord_Howe");
>+
>+  // Half-hour DST offset changes
>+  //
>+  //   1365260399 == Sun,  7 Apr 2013 01:59:59 +1100 (+11)
>+  //   1365260400 == Sun,  7 Apr 2013 01:30:00 +1030 (+1030)
>+  auto tp = convert(civil_second(2013, 4, 7, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 4, 7, 1, 59, 59, 11 * 3600, true, "+11");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 4, 7, 1, 30, 0, 10.5 * 3600, false, "+1030");
>+
>+  //   1380986999 == Sun,  6 Oct 2013 01:59:59 +1030 (+1030)
>+  //   1380987000 == Sun,  6 Oct 2013 02:30:00 +1100 (+11)
>+  tp = convert(civil_second(2013, 10, 6, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 2013, 10, 6, 1, 59, 59, 10.5 * 3600, false, "+1030");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2013, 10, 6, 2, 30, 0, 11 * 3600, true, "+11");
>+}
>+
>+TEST(TimeZoneEdgeCase, PacificApia) {
>+  const time_zone tz = LoadZone("Pacific/Apia");
>+
>+  // At the end of December 2011, Samoa jumped forward by one day,
>+  // skipping 30 December from the local calendar, when the nation
>+  // moved to the west of the International Date Line.
>+  //
>+  // A one-day, non-DST offset change
>+  //
>+  //   1325239199 == Thu, 29 Dec 2011 23:59:59 -1000 (-10)
>+  //   1325239200 == Sat, 31 Dec 2011 00:00:00 +1400 (+14)
>+  auto tp = convert(civil_second(2011, 12, 29, 23, 59, 59), tz);
>+  ExpectTime(tp, tz, 2011, 12, 29, 23, 59, 59, -10 * 3600, true, "-10");
>+  EXPECT_EQ(363, get_yearday(civil_day(convert(tp, tz))));
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2011, 12, 31, 0, 0, 0, 14 * 3600, true, "+14");
>+  EXPECT_EQ(365, get_yearday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(TimeZoneEdgeCase, AfricaCairo) {
>+  const time_zone tz = LoadZone("Africa/Cairo");
>+
>+  if (VersionCmp(tz, "2014c") >= 0) {
>+    // An interesting case of midnight not existing.
>+    //
>+    //   1400191199 == Thu, 15 May 2014 23:59:59 +0200 (EET)
>+    //   1400191200 == Fri, 16 May 2014 01:00:00 +0300 (EEST)
>+    auto tp = convert(civil_second(2014, 5, 15, 23, 59, 59), tz);
>+    ExpectTime(tp, tz, 2014, 5, 15, 23, 59, 59, 2 * 3600, false, "EET");
>+    tp += absl::time_internal::cctz::seconds(1);
>+    ExpectTime(tp, tz, 2014, 5, 16, 1, 0, 0, 3 * 3600, true, "EEST");
>+  }
>+}
>+
>+TEST(TimeZoneEdgeCase, AfricaMonrovia) {
>+  const time_zone tz = LoadZone("Africa/Monrovia");
>+
>+  if (VersionCmp(tz, "2017b") >= 0) {
>+    // Strange offset change -00:44:30 -> +00:00:00 (non-DST)
>+    //
>+    //   63593069 == Thu,  6 Jan 1972 23:59:59 -0044 (MMT)
>+    //   63593070 == Fri,  7 Jan 1972 00:44:30 +0000 (GMT)
>+    auto tp = convert(civil_second(1972, 1, 6, 23, 59, 59), tz);
>+    ExpectTime(tp, tz, 1972, 1, 6, 23, 59, 59, -44.5 * 60, false, "MMT");
>+    tp += absl::time_internal::cctz::seconds(1);
>+    ExpectTime(tp, tz, 1972, 1, 7, 0, 44, 30, 0 * 60, false, "GMT");
>+  }
>+}
>+
>+TEST(TimeZoneEdgeCase, AmericaJamaica) {
>+  // Jamaica discontinued DST transitions in 1983, and is now at a
>+  // constant -0500.  This makes it an interesting edge-case target.
>+  // Note that the 32-bit times used in a (tzh_version == 0) zoneinfo
>+  // file cannot represent the abbreviation-only transition of 1890,
>+  // so we ignore the abbreviation by expecting what we received.
>+  const time_zone tz = LoadZone("America/Jamaica");
>+
>+  // Before the first transition.
>+  if (!tz.version().empty() && VersionCmp(tz, "2018d") >= 0) {
>+    // We avoid the expectations on the -18430 offset below unless we are
>+    // certain we have commit 907241e (Fix off-by-1 error for Jamaica and
>+    // T&C before 1913) from 2018d.  TODO: Remove the "version() not empty"
>+    // part when 2018d is generally available from /usr/share/zoneinfo.
>+    auto tp = convert(civil_second(1889, 12, 31, 0, 0, 0), tz);
>+    ExpectTime(tp, tz, 1889, 12, 31, 0, 0, 0, -18430, false,
>+               tz.lookup(tp).abbr);
>+
>+    // Over the first (abbreviation-change only) transition.
>+    //   -2524503170 == Tue, 31 Dec 1889 23:59:59 -0507 (LMT)
>+    //   -2524503169 == Wed,  1 Jan 1890 00:00:00 -0507 (KMT)
>+    tp = convert(civil_second(1889, 12, 31, 23, 59, 59), tz);
>+    ExpectTime(tp, tz, 1889, 12, 31, 23, 59, 59, -18430, false,
>+               tz.lookup(tp).abbr);
>+    tp += absl::time_internal::cctz::seconds(1);
>+    ExpectTime(tp, tz, 1890, 1, 1, 0, 0, 0, -18430, false, "KMT");
>+  }
>+
>+  // Over the last (DST) transition.
>+  //     436341599 == Sun, 30 Oct 1983 01:59:59 -0400 (EDT)
>+  //     436341600 == Sun, 30 Oct 1983 01:00:00 -0500 (EST)
>+  auto tp = convert(civil_second(1983, 10, 30, 1, 59, 59), tz);
>+  ExpectTime(tp, tz, 1983, 10, 30, 1, 59, 59, -4 * 3600, true, "EDT");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 1983, 10, 30, 1, 0, 0, -5 * 3600, false, "EST");
>+
>+  // After the last transition.
>+  tp = convert(civil_second(1983, 12, 31, 23, 59, 59), tz);
>+  ExpectTime(tp, tz, 1983, 12, 31, 23, 59, 59, -5 * 3600, false, "EST");
>+}
>+
>+TEST(TimeZoneEdgeCase, WET) {
>+  // Cover some non-existent times within forward transitions.
>+  const time_zone tz = LoadZone("WET");
>+
>+  // Before the first transition.
>+  auto tp = convert(civil_second(1977, 1, 1, 0, 0, 0), tz);
>+  ExpectTime(tp, tz, 1977, 1, 1, 0, 0, 0, 0, false, "WET");
>+
>+  // Over the first transition.
>+  //     228877199 == Sun,  3 Apr 1977 00:59:59 +0000 (WET)
>+  //     228877200 == Sun,  3 Apr 1977 02:00:00 +0100 (WEST)
>+  tp = convert(civil_second(1977, 4, 3, 0, 59, 59), tz);
>+  ExpectTime(tp, tz, 1977, 4, 3, 0, 59, 59, 0, false, "WET");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST");
>+
>+  // A non-existent time within the first transition.
>+  time_zone::civil_lookup cl1 = tz.lookup(civil_second(1977, 4, 3, 1, 15, 0));
>+  EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl1.kind);
>+  ExpectTime(cl1.pre, tz, 1977, 4, 3, 2, 15, 0, 1 * 3600, true, "WEST");
>+  ExpectTime(cl1.trans, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST");
>+  ExpectTime(cl1.post, tz, 1977, 4, 3, 0, 15, 0, 0 * 3600, false, "WET");
>+
>+  // A non-existent time within the second forward transition.
>+  time_zone::civil_lookup cl2 = tz.lookup(civil_second(1978, 4, 2, 1, 15, 0));
>+  EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl2.kind);
>+  ExpectTime(cl2.pre, tz, 1978, 4, 2, 2, 15, 0, 1 * 3600, true, "WEST");
>+  ExpectTime(cl2.trans, tz, 1978, 4, 2, 2, 0, 0, 1 * 3600, true, "WEST");
>+  ExpectTime(cl2.post, tz, 1978, 4, 2, 0, 15, 0, 0 * 3600, false, "WET");
>+}
>+
>+TEST(TimeZoneEdgeCase, FixedOffsets) {
>+  const time_zone gmtm5 = LoadZone("Etc/GMT+5");  // -0500
>+  auto tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtm5);
>+  ExpectTime(tp, gmtm5, 1970, 1, 1, 0, 0, 0, -5 * 3600, false, "-05");
>+  EXPECT_EQ(chrono::system_clock::from_time_t(5 * 3600), tp);
>+
>+  const time_zone gmtp5 = LoadZone("Etc/GMT-5");  // +0500
>+  tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtp5);
>+  ExpectTime(tp, gmtp5, 1970, 1, 1, 0, 0, 0, 5 * 3600, false, "+05");
>+  EXPECT_EQ(chrono::system_clock::from_time_t(-5 * 3600), tp);
>+}
>+
>+TEST(TimeZoneEdgeCase, NegativeYear) {
>+  // Tests transition from year 0 (aka 1BCE) to year -1.
>+  const time_zone tz = utc_time_zone();
>+  auto tp = convert(civil_second(0, 1, 1, 0, 0, 0), tz);
>+  ExpectTime(tp, tz, 0, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC");
>+  EXPECT_EQ(weekday::saturday, get_weekday(civil_day(convert(tp, tz))));
>+  tp -= absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, -1, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC");
>+  EXPECT_EQ(weekday::friday, get_weekday(civil_day(convert(tp, tz))));
>+}
>+
>+TEST(TimeZoneEdgeCase, UTC32bitLimit) {
>+  const time_zone tz = utc_time_zone();
>+
>+  // Limits of signed 32-bit time_t
>+  //
>+  //   2147483647 == Tue, 19 Jan 2038 03:14:07 +0000 (UTC)
>+  //   2147483648 == Tue, 19 Jan 2038 03:14:08 +0000 (UTC)
>+  auto tp = convert(civil_second(2038, 1, 19, 3, 14, 7), tz);
>+  ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 7, 0 * 3600, false, "UTC");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 8, 0 * 3600, false, "UTC");
>+}
>+
>+TEST(TimeZoneEdgeCase, UTC5DigitYear) {
>+  const time_zone tz = utc_time_zone();
>+
>+  // Rollover to 5-digit year
>+  //
>+  //   253402300799 == Fri, 31 Dec 9999 23:59:59 +0000 (UTC)
>+  //   253402300800 == Sat,  1 Jan 1000 00:00:00 +0000 (UTC)
>+  auto tp = convert(civil_second(9999, 12, 31, 23, 59, 59), tz);
>+  ExpectTime(tp, tz, 9999, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC");
>+  tp += absl::time_internal::cctz::seconds(1);
>+  ExpectTime(tp, tz, 10000, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC");
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..75ad8bcba93a49af3969e523f5c7e47e16a589b9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.cc
>@@ -0,0 +1,155 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "time_zone_posix.h"
>+
>+#include <cstddef>
>+#include <cstring>
>+#include <limits>
>+#include <string>
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+namespace {
>+
>+const char kDigits[] = "0123456789";
>+
>+const char* ParseInt(const char* p, int min, int max, int* vp) {
>+  int value = 0;
>+  const char* op = p;
>+  const int kMaxInt = std::numeric_limits<int>::max();
>+  for (; const char* dp = strchr(kDigits, *p); ++p) {
>+    int d = static_cast<int>(dp - kDigits);
>+    if (d >= 10) break;  // '\0'
>+    if (value > kMaxInt / 10) return nullptr;
>+    value *= 10;
>+    if (value > kMaxInt - d) return nullptr;
>+    value += d;
>+  }
>+  if (p == op || value < min || value > max) return nullptr;
>+  *vp = value;
>+  return p;
>+}
>+
>+// abbr = <.*?> | [^-+,\d]{3,}
>+const char* ParseAbbr(const char* p, std::string* abbr) {
>+  const char* op = p;
>+  if (*p == '<') {  // special zoneinfo <...> form
>+    while (*++p != '>') {
>+      if (*p == '\0') return nullptr;
>+    }
>+    abbr->assign(op + 1, static_cast<std::size_t>(p - op) - 1);
>+    return ++p;
>+  }
>+  while (*p != '\0') {
>+    if (strchr("-+,", *p)) break;
>+    if (strchr(kDigits, *p)) break;
>+    ++p;
>+  }
>+  if (p - op < 3) return nullptr;
>+  abbr->assign(op, static_cast<std::size_t>(p - op));
>+  return p;
>+}
>+
>+// offset = [+|-]hh[:mm[:ss]] (aggregated into single seconds value)
>+const char* ParseOffset(const char* p, int min_hour, int max_hour, int sign,
>+                        std::int_fast32_t* offset) {
>+  if (p == nullptr) return nullptr;
>+  if (*p == '+' || *p == '-') {
>+    if (*p++ == '-') sign = -sign;
>+  }
>+  int hours = 0;
>+  int minutes = 0;
>+  int seconds = 0;
>+
>+  p = ParseInt(p, min_hour, max_hour, &hours);
>+  if (p == nullptr) return nullptr;
>+  if (*p == ':') {
>+    p = ParseInt(p + 1, 0, 59, &minutes);
>+    if (p == nullptr) return nullptr;
>+    if (*p == ':') {
>+      p = ParseInt(p + 1, 0, 59, &seconds);
>+      if (p == nullptr) return nullptr;
>+    }
>+  }
>+  *offset = sign * ((((hours * 60) + minutes) * 60) + seconds);
>+  return p;
>+}
>+
>+// datetime = ( Jn | n | Mm.w.d ) [ / offset ]
>+const char* ParseDateTime(const char* p, PosixTransition* res) {
>+  if (p != nullptr && *p == ',') {
>+    if (*++p == 'M') {
>+      int month = 0;
>+      if ((p = ParseInt(p + 1, 1, 12, &month)) != nullptr && *p == '.') {
>+        int week = 0;
>+        if ((p = ParseInt(p + 1, 1, 5, &week)) != nullptr && *p == '.') {
>+          int weekday = 0;
>+          if ((p = ParseInt(p + 1, 0, 6, &weekday)) != nullptr) {
>+            res->date.fmt = PosixTransition::M;
>+            res->date.m.month = static_cast<int_fast8_t>(month);
>+            res->date.m.week = static_cast<int_fast8_t>(week);
>+            res->date.m.weekday = static_cast<int_fast8_t>(weekday);
>+          }
>+        }
>+      }
>+    } else if (*p == 'J') {
>+      int day = 0;
>+      if ((p = ParseInt(p + 1, 1, 365, &day)) != nullptr) {
>+        res->date.fmt = PosixTransition::J;
>+        res->date.j.day = static_cast<int_fast16_t>(day);
>+      }
>+    } else {
>+      int day = 0;
>+      if ((p = ParseInt(p, 0, 365, &day)) != nullptr) {
>+        res->date.fmt = PosixTransition::N;
>+        res->date.j.day = static_cast<int_fast16_t>(day);
>+      }
>+    }
>+  }
>+  if (p != nullptr) {
>+    res->time.offset = 2 * 60 * 60;  // default offset is 02:00:00
>+    if (*p == '/') p = ParseOffset(p + 1, -167, 167, 1, &res->time.offset);
>+  }
>+  return p;
>+}
>+
>+}  // namespace
>+
>+// spec = std offset [ dst [ offset ] , datetime , datetime ]
>+bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res) {
>+  const char* p = spec.c_str();
>+  if (*p == ':') return false;
>+
>+  p = ParseAbbr(p, &res->std_abbr);
>+  p = ParseOffset(p, 0, 24, -1, &res->std_offset);
>+  if (p == nullptr) return false;
>+  if (*p == '\0') return true;
>+
>+  p = ParseAbbr(p, &res->dst_abbr);
>+  if (p == nullptr) return false;
>+  res->dst_offset = res->std_offset + (60 * 60);  // default
>+  if (*p != ',') p = ParseOffset(p, 0, 24, -1, &res->dst_offset);
>+
>+  p = ParseDateTime(p, &res->dst_start);
>+  p = ParseDateTime(p, &res->dst_end);
>+
>+  return p != nullptr && *p == '\0';
>+}
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..6619f27edcf63895abeb23f3ddb48eff4f9f2ac8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.h
>@@ -0,0 +1,118 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+// Parsing of a POSIX zone spec as described in the TZ part of section 8.3 in
>+// http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html.
>+//
>+// The current POSIX spec for America/Los_Angeles is "PST8PDT,M3.2.0,M11.1.0",
>+// which would be broken down as ...
>+//
>+//   PosixTimeZone {
>+//     std_abbr = "PST"
>+//     std_offset = -28800
>+//     dst_abbr = "PDT"
>+//     dst_offset = -25200
>+//     dst_start = PosixTransition {
>+//       date {
>+//         m {
>+//           month = 3
>+//           week = 2
>+//           weekday = 0
>+//         }
>+//       }
>+//       time {
>+//         offset = 7200
>+//       }
>+//     }
>+//     dst_end = PosixTransition {
>+//       date {
>+//         m {
>+//           month = 11
>+//           week = 1
>+//           weekday = 0
>+//         }
>+//       }
>+//       time {
>+//         offset = 7200
>+//       }
>+//     }
>+//   }
>+
>+#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_
>+#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_
>+
>+#include <cstdint>
>+#include <string>
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// The date/time of the transition. The date is specified as either:
>+// (J) the Nth day of the year (1 <= N <= 365), excluding leap days, or
>+// (N) the Nth day of the year (0 <= N <= 365), including leap days, or
>+// (M) the Nth weekday of a month (e.g., the 2nd Sunday in March).
>+// The time, specified as a day offset, identifies the particular moment
>+// of the transition, and may be negative or >= 24h, and in which case
>+// it would take us to another day, and perhaps week, or even month.
>+struct PosixTransition {
>+  enum DateFormat { J, N, M };
>+  struct {
>+    DateFormat fmt;
>+    union {
>+      struct {
>+        std::int_fast16_t day;  // day of non-leap year [1:365]
>+      } j;
>+      struct {
>+        std::int_fast16_t day;  // day of year [0:365]
>+      } n;
>+      struct {
>+        std::int_fast8_t month;    // month of year [1:12]
>+        std::int_fast8_t week;     // week of month [1:5] (5==last)
>+        std::int_fast8_t weekday;  // 0==Sun, ..., 6=Sat
>+      } m;
>+    };
>+  } date;
>+  struct {
>+    std::int_fast32_t offset;  // seconds before/after 00:00:00
>+  } time;
>+};
>+
>+// The entirety of a POSIX-std::string specified time-zone rule. The standard
>+// abbreviation and offset are always given. If the time zone includes
>+// daylight saving, then the daylight abbrevation is non-empty and the
>+// remaining fields are also valid. Note that the start/end transitions
>+// are not ordered---in the southern hemisphere the transition to end
>+// daylight time occurs first in any particular year.
>+struct PosixTimeZone {
>+  std::string std_abbr;
>+  std::int_fast32_t std_offset;
>+
>+  std::string dst_abbr;
>+  std::int_fast32_t dst_offset;
>+  PosixTransition dst_start;
>+  PosixTransition dst_end;
>+};
>+
>+// Breaks down a POSIX time-zone specification into its constituent pieces,
>+// filling in any missing values (DST offset, or start/end transition times)
>+// with the standard-defined defaults. Returns false if the specification
>+// could not be parsed (although some fields of *res may have been altered).
>+bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res);
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/tzfile.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/tzfile.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..90cfc0c42989b040ef9146d1c45d37ad77b22caa
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/tzfile.h
>@@ -0,0 +1,117 @@
>+#ifndef TZFILE_H
>+
>+#define TZFILE_H
>+
>+/*
>+** This file is in the public domain, so clarified as of
>+** 1996-06-05 by Arthur David Olson.
>+*/
>+
>+/*
>+** This header is for use ONLY with the time conversion code.
>+** There is no guarantee that it will remain unchanged,
>+** or that it will remain at all.
>+** Do NOT copy it to any system include directory.
>+** Thank you!
>+*/
>+
>+/*
>+** Information about time zone files.
>+*/
>+
>+#ifndef TZDIR
>+#define TZDIR	"/usr/share/zoneinfo" /* Time zone object file directory */
>+#endif /* !defined TZDIR */
>+
>+#ifndef TZDEFAULT
>+#define TZDEFAULT	"/etc/localtime"
>+#endif /* !defined TZDEFAULT */
>+
>+#ifndef TZDEFRULES
>+#define TZDEFRULES	"posixrules"
>+#endif /* !defined TZDEFRULES */
>+
>+/*
>+** Each file begins with. . .
>+*/
>+
>+#define	TZ_MAGIC	"TZif"
>+
>+struct tzhead {
>+	char	tzh_magic[4];		/* TZ_MAGIC */
>+	char	tzh_version[1];		/* '\0' or '2' or '3' as of 2013 */
>+	char	tzh_reserved[15];	/* reserved; must be zero */
>+	char	tzh_ttisgmtcnt[4];	/* coded number of trans. time flags */
>+	char	tzh_ttisstdcnt[4];	/* coded number of trans. time flags */
>+	char	tzh_leapcnt[4];		/* coded number of leap seconds */
>+	char	tzh_timecnt[4];		/* coded number of transition times */
>+	char	tzh_typecnt[4];		/* coded number of local time types */
>+	char	tzh_charcnt[4];		/* coded number of abbr. chars */
>+};
>+
>+/*
>+** . . .followed by. . .
>+**
>+**	tzh_timecnt (char [4])s		coded transition times a la time(2)
>+**	tzh_timecnt (unsigned char)s	types of local time starting at above
>+**	tzh_typecnt repetitions of
>+**		one (char [4])		coded UT offset in seconds
>+**		one (unsigned char)	used to set tm_isdst
>+**		one (unsigned char)	that's an abbreviation list index
>+**	tzh_charcnt (char)s		'\0'-terminated zone abbreviations
>+**	tzh_leapcnt repetitions of
>+**		one (char [4])		coded leap second transition times
>+**		one (char [4])		total correction after above
>+**	tzh_ttisstdcnt (char)s		indexed by type; if 1, transition
>+**					time is standard time, if 0,
>+**					transition time is wall clock time
>+**					if absent, transition times are
>+**					assumed to be wall clock time
>+**	tzh_ttisgmtcnt (char)s		indexed by type; if 1, transition
>+**					time is UT, if 0,
>+**					transition time is local time
>+**					if absent, transition times are
>+**					assumed to be local time
>+*/
>+
>+/*
>+** If tzh_version is '2' or greater, the above is followed by a second instance
>+** of tzhead and a second instance of the data in which each coded transition
>+** time uses 8 rather than 4 chars,
>+** then a POSIX-TZ-environment-variable-style std::string for use in handling
>+** instants after the last transition time stored in the file
>+** (with nothing between the newlines if there is no POSIX representation for
>+** such instants).
>+**
>+** If tz_version is '3' or greater, the above is extended as follows.
>+** First, the POSIX TZ std::string's hour offset may range from -167
>+** through 167 as compared to the POSIX-required 0 through 24.
>+** Second, its DST start time may be January 1 at 00:00 and its stop
>+** time December 31 at 24:00 plus the difference between DST and
>+** standard time, indicating DST all year.
>+*/
>+
>+/*
>+** In the current implementation, "tzset()" refuses to deal with files that
>+** exceed any of the limits below.
>+*/
>+
>+#ifndef TZ_MAX_TIMES
>+#define TZ_MAX_TIMES	2000
>+#endif /* !defined TZ_MAX_TIMES */
>+
>+#ifndef TZ_MAX_TYPES
>+/* This must be at least 17 for Europe/Samara and Europe/Vilnius.  */
>+#define TZ_MAX_TYPES	256 /* Limited by what (unsigned char)'s can hold */
>+#endif /* !defined TZ_MAX_TYPES */
>+
>+#ifndef TZ_MAX_CHARS
>+#define TZ_MAX_CHARS	50	/* Maximum number of abbreviation characters */
>+				/* (limited by what unsigned chars can hold) */
>+#endif /* !defined TZ_MAX_CHARS */
>+
>+#ifndef TZ_MAX_LEAPS
>+#define TZ_MAX_LEAPS	50	/* Maximum number of leap second corrections */
>+#endif /* !defined TZ_MAX_LEAPS */
>+
>+#endif /* !defined TZFILE_H */
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/zone_info_source.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/zone_info_source.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..bf2d2d2d2b5384eff3ea0ea10ee8fa68f0fe8bc7
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/src/zone_info_source.cc
>@@ -0,0 +1,79 @@
>+// Copyright 2016 Google Inc. All Rights Reserved.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//   http://www.apache.org/licenses/LICENSE-2.0
>+//
>+//   Unless required by applicable law or agreed to in writing, software
>+//   distributed under the License is distributed on an "AS IS" BASIS,
>+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+//   See the License for the specific language governing permissions and
>+//   limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/zone_info_source.h"
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz {
>+
>+// Defined out-of-line to avoid emitting a weak vtable in all TUs.
>+ZoneInfoSource::~ZoneInfoSource() {}
>+std::string ZoneInfoSource::Version() const { return std::string(); }
>+
>+}  // namespace cctz
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz_extension {
>+
>+namespace {
>+
>+// A default for cctz_extension::zone_info_source_factory, which simply
>+// defers to the fallback factory.
>+std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> DefaultFactory(
>+    const std::string& name,
>+    const std::function<std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource>(
>+        const std::string& name)>& fallback_factory) {
>+  return fallback_factory(name);
>+}
>+
>+}  // namespace
>+
>+// A "weak" definition for cctz_extension::zone_info_source_factory.
>+// The user may override this with their own "strong" definition (see
>+// zone_info_source.h).
>+#if defined(_MSC_VER)
>+extern ZoneInfoSourceFactory zone_info_source_factory;
>+extern ZoneInfoSourceFactory default_factory;
>+ZoneInfoSourceFactory default_factory = DefaultFactory;
>+#if defined(_M_IX86)
>+#pragma comment( \
>+    linker,      \
>+    "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZA=?default_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZA")
>+#elif defined(_M_IA_64) || defined(_M_AMD64)
>+#pragma comment( \
>+    linker,      \
>+    "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZEA=?default_factory@cctz_extension@time_internal@absl@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@absl@@U?$default_delete@VZoneInfoSource@cctz@time_internal@absl@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@5@@ZEA")
>+#else
>+#error Unsupported MSVC platform
>+#endif
>+#else  // _MSC_VER
>+#if !defined(__has_attribute)
>+#define __has_attribute(x) 0
>+#endif
>+#if __has_attribute(weak) || defined(__GNUC__)
>+ZoneInfoSourceFactory zone_info_source_factory
>+    __attribute__((weak)) = DefaultFactory;
>+#else
>+// Make it a "strong" definition if we have no other choice.
>+ZoneInfoSourceFactory zone_info_source_factory = DefaultFactory;
>+#endif
>+#endif  // _MSC_VER
>+
>+}  // namespace cctz_extension
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/README.zoneinfo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/README.zoneinfo
>new file mode 100644
>index 0000000000000000000000000000000000000000..95fb4a91d17eb976f02993d0af3fa4e56939a427
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/README.zoneinfo
>@@ -0,0 +1,37 @@
>+testdata/zoneinfo contains time-zone data files that may be used with CCTZ.
>+Install them in a location referenced by the ${TZDIR} environment variable.
>+Symbolic and hard links have been eliminated for portability.
>+
>+On Linux systems the distribution's versions of these files can probably
>+already be found in the default ${TZDIR} location, /usr/share/zoneinfo.
>+
>+New versions can be generated using the following shell script.
>+
>+  #!/bin/sh -
>+  set -e
>+  DESTDIR=$(mktemp -d)
>+  trap "rm -fr ${DESTDIR}" 0 2 15
>+  (
>+    cd ${DESTDIR}
>+    git clone https://github.com/eggert/tz.git
>+    make --directory=tz \
>+        install DESTDIR=${DESTDIR} \
>+                DATAFORM=vanguard \
>+                TZDIR=/zoneinfo \
>+                REDO=posix_only \
>+                LOCALTIME=Factory \
>+                TZDATA_TEXT= \
>+                ZONETABLES=zone1970.tab
>+    tar --create --dereference --hard-dereference --file tzfile.tar \
>+        --directory=tz tzfile.h
>+    tar --create --dereference --hard-dereference --file zoneinfo.tar \
>+        --exclude=zoneinfo/posixrules zoneinfo \
>+        --directory=tz version
>+  )
>+  tar --extract --directory src --file ${DESTDIR}/tzfile.tar
>+  tar --extract --directory testdata --file ${DESTDIR}/zoneinfo.tar
>+  exit 0
>+
>+To run the CCTZ tests using the testdata/zoneinfo files, execute:
>+
>+  bazel test --test_env=TZDIR=${PWD}/testdata/zoneinfo ...
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/version b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/version
>new file mode 100644
>index 0000000000000000000000000000000000000000..fe86b5cc877292444ab101cd4125ec1026761d7d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/version
>@@ -0,0 +1 @@
>+2018e-2-g99dd695
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Accra
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Addis_Ababa
>new file mode 100644
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>GIT binary patch
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>
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Algiers
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmara
>new file mode 100644
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>
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Asmera
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>
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bamako
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bangui
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Banjul
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bissau
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Blantyre
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Brazzaville
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Bujumbura
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Cairo
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Casablanca
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ceuta
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Conakry
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dakar
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Dar_es_Salaam
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Djibouti b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Djibouti
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Douala b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Douala
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/El_Aaiun b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/El_Aaiun
>new file mode 100644
>index 0000000000000000000000000000000000000000..f5f8ffbc61716d3a421f555fa962a2b3e488d78e
>GIT binary patch
>literal 1473
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Freetown b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Freetown
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Gaborone b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Gaborone
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
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>literal 171
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Harare b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Harare
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
>GIT binary patch
>literal 171
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Johannesburg b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Johannesburg
>new file mode 100644
>index 0000000000000000000000000000000000000000..ddf3652e159e4c3cd844bdedf4784dcd29da23c7
>GIT binary patch
>literal 271
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Juba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Juba
>new file mode 100644
>index 0000000000000000000000000000000000000000..9fa711904dff7519d3061e1bc81527f5dba0769b
>GIT binary patch
>literal 683
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kampala b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kampala
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Khartoum b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Khartoum
>new file mode 100644
>index 0000000000000000000000000000000000000000..f2c9e303797396981ce1900c06cb51e65f94b830
>GIT binary patch
>literal 713
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kigali b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kigali
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$Z2vr`h|g!fkCbZBqgK3z~bW@!r<%}0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx<*_8th^MU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kinshasa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Kinshasa
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lagos b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lagos
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Libreville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Libreville
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lome b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lome
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eHwPk_Q9h|Nnn1KvF=!;^P~_;10wf5JG}!KfpQ|
>Q82$qRep9)C#v5<}0M)@5+W-In
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Luanda b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Luanda
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lubumbashi b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lubumbashi
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$Z2vr`h|g!fkCbZBqgK3z~bW@!r<%}0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx<*_8th^MU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lusaka b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Lusaka
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$Z2vr`h|g!fkCbZBqgK3z~bW@!r<%}0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx<*_8th^MU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Malabo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Malabo
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Maputo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Maputo
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b871dbaa7c2969f6b4dfc854184a29010bfb2cc
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$Z2vr`h|g!fkCbZBqgK3z~bW@!r<%}0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx<*_8th^MU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Maseru b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Maseru
>new file mode 100644
>index 0000000000000000000000000000000000000000..ddf3652e159e4c3cd844bdedf4784dcd29da23c7
>GIT binary patch
>literal 271
>zcmWHE%1kq2zyK^j5fBCeHXsJEIU9gPliT@>GwXU9&d$p(IM<igaK0|EfRULA2pJfp
>z9DoWKL?u9~wG0@6q>KUsi;r&zL$G6T2uKbLLI_*Q4pa!X@&{DUe;~-Mc60#IASZxm
>ckTXCu$SEKi<QxzUauNfHZsG#DP}hhH09Bqn8vp<R
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Mbabane b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Mbabane
>new file mode 100644
>index 0000000000000000000000000000000000000000..ddf3652e159e4c3cd844bdedf4784dcd29da23c7
>GIT binary patch
>literal 271
>zcmWHE%1kq2zyK^j5fBCeHXsJEIU9gPliT@>GwXU9&d$p(IM<igaK0|EfRULA2pJfp
>z9DoWKL?u9~wG0@6q>KUsi;r&zL$G6T2uKbLLI_*Q4pa!X@&{DUe;~-Mc60#IASZxm
>ckTXCu$SEKi<QxzUauNfHZsG#DP}hhH09Bqn8vp<R
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Mogadishu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Mogadishu
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
>zcmWHE%1kq2zyPd35fBCe7+a(P$l3Vr)}JkhW?eWw(f!6-{fAc=7@3$E85opWKq|Ei
>z7+4q>lr<PQ7#P&nFz`V{e0)O~TpdFgv<-}m4M3!cDM&FCgplBXA5cC2fdJ$X5Djt+
>Thz2<bL{r64TtN5g8gl^vna4UY
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Monrovia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Monrovia
>new file mode 100644
>index 0000000000000000000000000000000000000000..b434c67fa5a3808cea974aaeec9cb4befa99c3bd
>GIT binary patch
>literal 233
>zcmWHE%1kq2zyK^j5fBCeW*`Q!c^ZJkg7};{%%`IA7@3&=|Nr`gfdNdi0Le*E4IDnc
>uAq>7i><+{*5JK1*n3X&~pql;zK~&YUIUpKjEl3z-H3Nxua{(P<zy$z(wKJFi
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Nairobi b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Nairobi
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
>zcmWHE%1kq2zyPd35fBCe7+a(P$l3Vr)}JkhW?eWw(f!6-{fAc=7@3$E85opWKq|Ei
>z7+4q>lr<PQ7#P&nFz`V{e0)O~TpdFgv<-}m4M3!cDM&FCgplBXA5cC2fdJ$X5Djt+
>Thz2<bL{r64TtN5g8gl^vna4UY
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ndjamena b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ndjamena
>new file mode 100644
>index 0000000000000000000000000000000000000000..bbfe19d60a5fc8b8d1a5e5319e4d687e2a2b078d
>GIT binary patch
>literal 225
>zcmWHE%1kq2zyQoZ5fBCe79a+(c^iPlq-PB&LTQBs!fN*t7#Nut85sCvfWi!X0w8rV
>v3XB{+z99_ZjvyQy0+IoO5E3l;0nx(n9|%B}fw&+GK{QF0aseHoYsduvED#(Q
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Niamey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Niamey
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Nouakchott b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Nouakchott
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eHwPk_Q9h|Nnn1KvF=!;^P~_;10wf5JG}!KfpQ|
>Q82$qRep9)C#v5<}0M)@5+W-In
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ouagadougou b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Ouagadougou
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eHwPk_Q9h|Nnn1KvF=!;^P~_;10wf5JG}!KfpQ|
>Q82$qRep9)C#v5<}0M)@5+W-In
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Porto-Novo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Porto-Novo
>new file mode 100644
>index 0000000000000000000000000000000000000000..b1c97cc5a77eb187cc8ea8a4031a45a9bf153b35
>GIT binary patch
>literal 171
>zcmWHE%1kq2zyM4@5fBCe7@MO3$XOWpIe>wYfq~foB*iDdz~bW@!VvBl0^%}+kYL&m
>Tunq=>|3HA>R4$<Lx`tc;I6M;>
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Sao_Tome b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Sao_Tome
>new file mode 100644
>index 0000000000000000000000000000000000000000..a4ece7ff2b7aba7f8e99fb8ee4ddbe1d439056cf
>GIT binary patch
>literal 234
>zcmWHE%1kq2zyK^j5fBCeW*`Q!c^ZJkq-T8%QJx(Fj7&gbwg3i(|Np-y1I0lAsEAL1
>zfy2i)guxw%!yQ9_f{b7sLf9IZl{`N{W&y!}Ac(X1YXG7_)`G-9Rx^-jHy6+$x`tc;
>Dq#`8m
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Timbuktu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Timbuktu
>new file mode 100644
>index 0000000000000000000000000000000000000000..6fd1af32daec193239ab6b472526fd3d6bdb2f76
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eHwPk_Q9h|Nnn1KvF=!;^P~_;10wf5JG}!KfpQ|
>Q82$qRep9)C#v5<}0M)@5+W-In
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Tripoli b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Tripoli
>new file mode 100644
>index 0000000000000000000000000000000000000000..b32e2202f572b8ca6ef3c5cf1d9e787a24f2c328
>GIT binary patch
>literal 655
>zcmcK1y)Oe{9Ki9Xt$}*US=39>YHJ`OImJk57onkU5{bt^(oWAP25I~WOa>97K}6ET
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Tunis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Tunis
>new file mode 100644
>index 0000000000000000000000000000000000000000..4bd3885a96f61bbf9c0db6b42956b02d6e2bccc4
>GIT binary patch
>literal 710
>zcmchUyGjE=6o${{A{s~>5h6+oNsO`3BBD)5WlVy23%G?^r4S+AB6$Ey0~XN-u+U0T
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Windhoek b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Windhoek
>new file mode 100644
>index 0000000000000000000000000000000000000000..f5d40bafc3912fe7c65f47cb63e52fc6b9b932c0
>GIT binary patch
>literal 988
>zcmc(dO-NKx97q3SI_L;`)g%cQ;zCVP$Fa$e@?%s+^CPW!GAalnWVxuRHU<)0%;kvJ
>zmFU7nEnEnSD_sgf5h~H9phe6o30H!MgsAsCTnH|rRlniAGd$kg+;g0v@v(qhnb$ty
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>zvyj|8Nfya35T8h?-(&9?%9H6n$?5KKq|9Gc?UzU>;z%^)NUOar&-we=-?8tzXMcS0
>z;hEjD$*$KB7Z4v1C%lFih#QC>h$Dt4h%1OMh%<;ch&z|oAH<<c>k;A-;uGQ&;uYeS
>z;TPhV;ThtZ;Tz(d;T_`MrS%VKz@_Z~(gLIhNE47QAZ<YUfHVT>1kwtm7f3UVZXoS2
>d`hhg$(sl%C$))WH(iEdB`JZ9=Y-!~I-#K{P&1e7s
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Adak b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Adak
>new file mode 100644
>index 0000000000000000000000000000000000000000..5696e0f8bedee72515c43f686881a561af339db9
>GIT binary patch
>literal 2365
>zcmciCZ%ma{0LSsm-^)cYDj-Bm!Hl7RhrdBt9tc86<UwwrWC#iolmVg)3ox8hdC{a;
>z&Wf15=#OjEF}7yX*qNL2g>zkSYhaF=n{(Efu39oj-p=>b){C0&@;rN<&*6@@zpuBZ
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Anchorage b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Anchorage
>new file mode 100644
>index 0000000000000000000000000000000000000000..6c8bdf226900d7f4c6a4d47338e6742d4d6747cd
>GIT binary patch
>literal 2380
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Anguilla b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Anguilla
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Antigua b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Antigua
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Araguaina b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Araguaina
>new file mode 100644
>index 0000000000000000000000000000000000000000..8b295a98bac071e39551940705ea050839e37b9d
>GIT binary patch
>literal 910
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Buenos_Aires b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Buenos_Aires
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4866ce1778fd2678a85dc6791a6c1b3fcaa5d1e
>GIT binary patch
>literal 1109
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Catamarca b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Catamarca
>new file mode 100644
>index 0000000000000000000000000000000000000000..9fe9ad6470939d78d5dfd94276f0ff332f1a91e6
>GIT binary patch
>literal 1109
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/ComodRivadavia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/ComodRivadavia
>new file mode 100644
>index 0000000000000000000000000000000000000000..9fe9ad6470939d78d5dfd94276f0ff332f1a91e6
>GIT binary patch
>literal 1109
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>literal 0
>HcmV?d00001
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Cordoba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Cordoba
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c58f8c23eb0d66d80714a9789b5c20abf043ca2
>GIT binary patch
>literal 1109
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Jujuy b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Jujuy
>new file mode 100644
>index 0000000000000000000000000000000000000000..a74ba046226060a01c6255b6714a40211f739a24
>GIT binary patch
>literal 1081
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/La_Rioja b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/La_Rioja
>new file mode 100644
>index 0000000000000000000000000000000000000000..cb184d6a80d3c4976cb78d82b37409190edc65f3
>GIT binary patch
>literal 1123
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Mendoza b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Mendoza
>new file mode 100644
>index 0000000000000000000000000000000000000000..5e8c44c8934960e2010e7b0505966747cb2c6e50
>GIT binary patch
>literal 1109
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Rio_Gallegos b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Rio_Gallegos
>new file mode 100644
>index 0000000000000000000000000000000000000000..966a529ba9ed8a4fc6385077cf188f95d47665e3
>GIT binary patch
>literal 1109
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Salta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Salta
>new file mode 100644
>index 0000000000000000000000000000000000000000..b19aa222f91d07c4fcdc8b50497244c64f2df1a2
>GIT binary patch
>literal 1081
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Juan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Juan
>new file mode 100644
>index 0000000000000000000000000000000000000000..9e5ade6100bb4a12e62827a596c0fcc29df53915
>GIT binary patch
>literal 1123
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Luis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/San_Luis
>new file mode 100644
>index 0000000000000000000000000000000000000000..af8aa99860119c9fd4af7b9356f7b548b771ac1b
>GIT binary patch
>literal 1139
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Tucuman b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Tucuman
>new file mode 100644
>index 0000000000000000000000000000000000000000..bbb03a0c705626dd22776818b61035ff501b7932
>GIT binary patch
>literal 1137
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Ushuaia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Argentina/Ushuaia
>new file mode 100644
>index 0000000000000000000000000000000000000000..07e4e9f0bd5f87ae067f613f52ce4327dae4f882
>GIT binary patch
>literal 1109
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Aruba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Aruba
>new file mode 100644
>index 0000000000000000000000000000000000000000..d308336bec9a539742ca3885c44a4d3c5a674463
>GIT binary patch
>literal 212
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Asuncion b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Asuncion
>new file mode 100644
>index 0000000000000000000000000000000000000000..3c61ddb5a7a9956e2448ec7185edea75df08bd3e
>GIT binary patch
>literal 2077
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Atikokan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Atikokan
>new file mode 100644
>index 0000000000000000000000000000000000000000..5708b55ac6bcb7580498bed9721a43fbd5a1773f
>GIT binary patch
>literal 345
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Atka b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Atka
>new file mode 100644
>index 0000000000000000000000000000000000000000..5696e0f8bedee72515c43f686881a561af339db9
>GIT binary patch
>literal 2365
>zcmciCZ%ma{0LSsm-^)cYDj-Bm!Hl7RhrdBt9tc86<UwwrWC#iolmVg)3ox8hdC{a;
>z&Wf15=#OjEF}7yX*qNL2g>zkSYhaF=n{(Efu39oj-p=>b){C0&@;rN<&*6@@zpuBZ
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>zUUDT<#ZPAFrDvkm!(T?}Wgp&B%R7r@Lf^DXtV)(ET7DOg<SdXYOQ*!6(X%pX)oGFB
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>z8;Q2dR695@B=l~N+Y@#VAD8R1EA;XIiuXVD{`(eg%APJv+EdCh(=yUTN?Ce(T6&rY
>F{}YG!e4hXS
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bahia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bahia
>new file mode 100644
>index 0000000000000000000000000000000000000000..6008a5749d01875a6995189735aa8b4e8747d250
>GIT binary patch
>literal 1050
>zcmciAKS<PJ9LMpWRuWffOGA+Qn21<seY@YKSD7_MLK?vj`ZF|zWDYen)DYUxBosv?
>z*z!yf4e>0&83YEFHW^U_rsvf)RYOMEaTZVC_tV%ELC^8K*KzPWj^F2<oEYfOM1PzW
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>z(%wI5w%JkHe&CLg;fu1PzSm}s8W-1`G1*)q+45u4VH%}l=Ctixdg^ldD`wY1Np@dL
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>I*&U~T0UU~E(EtDd
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bahia_Banderas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bahia_Banderas
>new file mode 100644
>index 0000000000000000000000000000000000000000..21e2b719f33d6195a65cbce81764adc92167b989
>GIT binary patch
>literal 1588
>zcmdUuTSyd90EW++VwvDzB~b)XffQzHYIZYiO*7ptx|&(7YuVa%(J@V|yc|e`AaV?X
>zNQ5A|QKUhcW)HpOOITz?B?LYQMFpJ#Ns5@xH}w)hP;dQ*Gv6?<`}BR@(qJG-{I+oY
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>z%5!$1*m!+hZEBb*HlKX1wv@-pf&=}kFmsCZ=69;1x$k6gT$9==hGfZ%b7skCx7;?~
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>zF;)2~S?>KdsDi^Wa^I^fYX8j%d0_B?d9Y(dR$aPmR@dB<X4?s~ru3ya6xeUpt{4z?
>z*&g%otS(W%B&h1Yw1|eNJk>B#E{=Rytd8Dwi(`+YRO5v**>vNhYCfJRTTVSy!WH72
>zNv_a8oUo98JGR~B6+%BP5o+7l&Wp*m-7ZBW?=Hi(`+Ho|e|*pPc!j6XE8O~S*4LAz
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>nmQgOGUP!@^isAoPa)b^&RR<pDNsdp9Pl)p*Cd8-2Cq#S)zm>O&
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Barbados b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Barbados
>new file mode 100644
>index 0000000000000000000000000000000000000000..6339936014862e144f8beb04b55b617f9834c3dc
>GIT binary patch
>literal 344
>zcmWHE%1kq2zyK^j5fBCeZXgD+1sZ_F%1V`|J6e;U@-cjRz&EAm0{?V|2LdH|7X-^5
>zJrD{BxF8(=KS9L6E`WiNnF$L2|34wkzyKy${{O#vfsy0?|KkT3czk?A7@UCE(FKTu
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>JE}&mbxBynQR5btq
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Belem b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Belem
>new file mode 100644
>index 0000000000000000000000000000000000000000..b8e13b02fe93679946331a1736945d033ea82525
>GIT binary patch
>literal 602
>zcmb`@JxIeq7=Yol{vc6wa&WLcofVEo!9m1T&_T$egOdo|Gq^}~RvZ;{xltS>W829^
>z)JZ9bP}&-C)J5<oq{{idaTEl>3zsJZF64Xt<>Few`LR0W4V#sh&2!(T-1d%xpgb@a
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>z7sqsbex?$)7A8lrX+L%AkL?XJe7UQ0>$fIvCPU?2nUSrc9__s_C2Osd&HQp@t*z}i
>zj<pX_rqkM+Yo}*^!FR@WLAEEq&GP>+YW#gfzGy8YBV(t^=*aj;0whDKq(E|{N)jXs
>zk_O3xBtkMFsgPVqG9+87q(kzhN<t(fl9JyiCz2G&iljyIB8jmiXa6CyJ1xm)JogLX
>C#sD7x
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Belize b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Belize
>new file mode 100644
>index 0000000000000000000000000000000000000000..7dcc4fc5b77151e0997e46204d584dfb6b464c31
>GIT binary patch
>literal 978
>zcmciAPe@cj0LSt7c7=^CBqYL%gr`y{79$gcJXp}d;6<+(f^_mAbrB<opg<2&SH(kr
>zE~}-zblY72AiHImf0o7U-zi2sIMTsW(jlZ%(|jjyoxC*5+t0G_F7y3`m#=r!dH<X;
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Blanc-Sablon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Blanc-Sablon
>new file mode 100644
>index 0000000000000000000000000000000000000000..abcde7d98693a9d583928c6f1acdf46b190a500a
>GIT binary patch
>literal 307
>zcmWHE%1kq2zyPd35fBCeHXsJEMH+y_ydA9x^LO11INk9m;ga%~f=dZ+FEBAOF|#oJ
>z|9`54f#LuEs}~qq{{KIIfPn+d<^hueKE5FgjxInP48-9;91sFDje&s?OoR}21v^k7
>w*cCrOI)LCm5X9M90?q&bALJ?!4RRTX2DuJIgIoxvfv#kr+?iZJ*PCzw0K7tFCIA2c
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Boa_Vista b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Boa_Vista
>new file mode 100644
>index 0000000000000000000000000000000000000000..f7769048cb33e11fb0a1486696473e8820666be9
>GIT binary patch
>literal 658
>zcmb`^yGz4B9Ki9kJ}C9IxHwd+T@?;n(2B^Zs|rFu@DES~Cl}qSt{nvtbZ}Is8(VS6
>zR@?+1L+NXA5DHq*T3Y4&edFjLf)_5I5Xh1Hp1ZoSHtzfwZSsc6h{@!+dsl9U7pY37
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>zchoeNr*tECtD518*F5hut!lsiNT*HY`a}=zJer}?c`q6-n&G`|J<|1HChB+IWadC6
>z%Qc;RikOtO)(HlFxq{Z_qK;$j{Y{`<o;@eDu;@BtDlRi2TVc3=*nZ>t6Isz(G9W2@
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>dawI#F9?6d!fv+3`rey7ZI*RbL9Lr21`~|^N5w8FM
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bogota b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Bogota
>new file mode 100644
>index 0000000000000000000000000000000000000000..d8934466bb728c88b211dba172369f5105b6300e
>GIT binary patch
>literal 271
>zcmWHE%1kq2zyK^j5fBCeRv-qk1sZ_FjEK+zE#~3??R~Kh_5c6>XJlq#X8!+w*8~Oz
>zFv;@&|M3Hi9RL6C+`z!&;~T=@1jM=qCO~Wo)D8h5ge_$Qssvm51F8pT*Z;UVCLcgF
>e$Ppl6kV8N;$T1+g9w^5^mW#M-fbO$1<pKa8PC)wr
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Boise b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Boise
>new file mode 100644
>index 0000000000000000000000000000000000000000..ada6d64b1afc93b62445fb8697075fd6be6ed3b6
>GIT binary patch
>literal 2403
>zcmd_qeN5F=9LMnkg2;`BQ;8v<l9o3J5Kt1xj0!}A8-!Q58etU3u2$efH!Z|tP>jDg
>zOGlJR(37@iD!OK4LtMkPmCaqZrnRu=nq{MhO%@No&inLdfAnu#U-rAN-|k@JpU>O7
>z!M`b6{Np0bH$2>n=HWd_nUCJLR`<O+7^nN5Pwne}`I<hwsx0}V&L|yR^ha~BE?)dO
>z{-m7v(I+M^R?Ddm^TqV3Jn0-x5~3$jhICAe(5I&4jI9YOtZuFjub5Ob3np|#=BSDo
>zSfC^2u!=l#T)M_yQ`ddjucI!V7SY3PI_CX;5&L$ZlrOc3>pP#7H|%N<H~Q=4?DfSW
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>zs9Lzrk&8BeEN;p9O5VEWU9mXs1L;oH!aaRir?|F>l+iOf^@>;AKJ>ayyU?uCd!N%8
>zCo0vF)<&JVZ<)$!Y?s;F=cuK{o8+>}ah2m<E$_(wOf8Q{mAQ%6MD7n!GH>FN$Upmw
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>zi$2xT+NO7(%2%zm4SG*ck_rtmKjAaN!e{=cejI0CtPqZKP=|y$PL~q19Os?BkSO~p
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>DiZO5?
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Buenos_Aires b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Buenos_Aires
>new file mode 100644
>index 0000000000000000000000000000000000000000..e4866ce1778fd2678a85dc6791a6c1b3fcaa5d1e
>GIT binary patch
>literal 1109
>zcmc)IPe{{Y9LMqB($yM5gMuO=7AZ0#c+lCRKlY0qtZ)|_6rKtq2!f(R22ra^r(h5x
>z2o#rIIs`o(EYX!uEn9k!!Hftx42o_=#Tv`Xr|<iLpy*Jye&gBeVW%Jaywd|Gj(2*0
>zJj>-54o{C9?rSc|*XXsZx_7?czrTJ~Pi)Nk6AP!+<k|~na(qlrHSYR_>o3%Umv79&
>zb74I_wazyKS^a2u*nhmUsEQZM=E;V-o;lL&&n$JQ(%ytARqv>0mvjDH>ZYE1f5ptF
>zteV&FOeNN>7m~+JZFfl3M(XBs@T97DM*RBQ5#3mwG>uY4eW?xli<NEqYq8sWD;!kc
>zZ}<C4L*2?=jr%Lc4(L$psr=^LxNeQ)@@<Jvy6wZ+eEX(Vs=a(TAM-w{nBI}^s8-aL
>z8;7Ea`cu7qx<mI4uGGD+GSPjDqk4bgXf$K34J>Q=$4{{Nmrs+s2d$lrd!Dt$ve#^F
>z$#@}apO*tI*1oO=BHX=}zEs*v%Gs*oa=PUFzDfG;EA9EYQbR60^5XW)(5*gXHDozt
>zJ!C<rtcWb>lr@n>kyVjpk#&)Uk(H69k+qS<k=2pqow7bsfKw_!N<eCGN)bpEPALPa
>z11SWl#3`j9wIIbfr5dChr__TKgj9r-gw%u-g{~?tQWpO$bs>czl_8}ewK=6Yq&laR
>oht%hk0+9-l5|J8_B9SVcQYKO-QYdER)x7_oX?T~!+tU^P0h%oABme*a
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cambridge_Bay b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cambridge_Bay
>new file mode 100644
>index 0000000000000000000000000000000000000000..d322f01ed1d11856e0f17d1ba5d5f6ca867533c3
>GIT binary patch
>literal 2098
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Campo_Grande b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Campo_Grande
>new file mode 100644
>index 0000000000000000000000000000000000000000..de52bb68143db08d381e441ba26a84c62048f0b5
>GIT binary patch
>literal 2016
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cancun b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cancun
>new file mode 100644
>index 0000000000000000000000000000000000000000..7e69f73de44698b65b61038ea40972f1e7c7affa
>GIT binary patch
>literal 816
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Caracas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Caracas
>new file mode 100644
>index 0000000000000000000000000000000000000000..c8cab1af26b03a7008d34078efdf5ae093f50c10
>GIT binary patch
>literal 289
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Catamarca b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Catamarca
>new file mode 100644
>index 0000000000000000000000000000000000000000..9fe9ad6470939d78d5dfd94276f0ff332f1a91e6
>GIT binary patch
>literal 1109
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cayenne b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cayenne
>new file mode 100644
>index 0000000000000000000000000000000000000000..6db640981f2b845769834e57142817da8bc61c31
>GIT binary patch
>literal 224
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cayman b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cayman
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c1c06372c6dc8610ffd14f74e923bdcb9b21d31
>GIT binary patch
>literal 203
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Chicago b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Chicago
>new file mode 100644
>index 0000000000000000000000000000000000000000..3dd8f0fa82a60710c0711f35dee93ef5013ca796
>GIT binary patch
>literal 3585
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Chihuahua b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Chihuahua
>new file mode 100644
>index 0000000000000000000000000000000000000000..e3adbdbfb25b557db2a2edfc721c365d90706233
>GIT binary patch
>literal 1522
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Coral_Harbour b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Coral_Harbour
>new file mode 100644
>index 0000000000000000000000000000000000000000..5708b55ac6bcb7580498bed9721a43fbd5a1773f
>GIT binary patch
>literal 345
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cordoba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cordoba
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Costa_Rica b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Costa_Rica
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Creston b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Creston
>new file mode 100644
>index 0000000000000000000000000000000000000000..798f627a81e25f9657c12909f4b0878f55eea9d2
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cuiaba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Cuiaba
>new file mode 100644
>index 0000000000000000000000000000000000000000..145c89e0f88a210dd7fa3d953d2f62af803b62b9
>GIT binary patch
>literal 1988
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Curacao b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Curacao
>new file mode 100644
>index 0000000000000000000000000000000000000000..d308336bec9a539742ca3885c44a4d3c5a674463
>GIT binary patch
>literal 212
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Danmarkshavn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Danmarkshavn
>new file mode 100644
>index 0000000000000000000000000000000000000000..ad68c722f8f56d14a0a9b3e2e98fe56ee17256e8
>GIT binary patch
>literal 712
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dawson b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dawson
>new file mode 100644
>index 0000000000000000000000000000000000000000..61c96889b074b751386ba0923b180e4eecbea226
>GIT binary patch
>literal 2093
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dawson_Creek b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dawson_Creek
>new file mode 100644
>index 0000000000000000000000000000000000000000..78f9076308013c2c0b46f8d1b9700abae2f435d3
>GIT binary patch
>literal 1059
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Denver b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Denver
>new file mode 100644
>index 0000000000000000000000000000000000000000..7fc669171f88e8e1fb0c1483bb83e746e5f1c779
>GIT binary patch
>literal 2453
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Detroit b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Detroit
>new file mode 100644
>index 0000000000000000000000000000000000000000..e3ea5c3ef1219fdc1b6e6663d2bf3a38c27df689
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dominica b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Dominica
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Edmonton b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Edmonton
>new file mode 100644
>index 0000000000000000000000000000000000000000..d02fbcd47f845bd101a7ec97150df7821b826357
>GIT binary patch
>literal 2402
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Eirunepe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Eirunepe
>new file mode 100644
>index 0000000000000000000000000000000000000000..41047f290049eed111a7e1c0e6c605666cdea5f1
>GIT binary patch
>literal 690
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/El_Salvador b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/El_Salvador
>new file mode 100644
>index 0000000000000000000000000000000000000000..9b8bc7a8778a0b8caea494cd5995318ca30d4fa8
>GIT binary patch
>literal 250
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Ensenada b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Ensenada
>new file mode 100644
>index 0000000000000000000000000000000000000000..29c83e71ffa6b071c52b2360295bf55009c09b76
>GIT binary patch
>literal 2356
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fort_Nelson b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fort_Nelson
>new file mode 100644
>index 0000000000000000000000000000000000000000..5923cc6888f881c8672d96be9e23fac7166b1c20
>GIT binary patch
>literal 2249
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fort_Wayne b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fort_Wayne
>new file mode 100644
>index 0000000000000000000000000000000000000000..4a92c06593d33d3969756f482e5d3d4b773984ef
>GIT binary patch
>literal 1675
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fortaleza b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Fortaleza
>new file mode 100644
>index 0000000000000000000000000000000000000000..22396bb5151aa9345133b2835aeedcc4d8b401d2
>GIT binary patch
>literal 742
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Glace_Bay b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Glace_Bay
>new file mode 100644
>index 0000000000000000000000000000000000000000..f58522b674c2e06fb5a184130fbc470ae9db72de
>GIT binary patch
>literal 2206
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Godthab b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Godthab
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Goose_Bay b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Goose_Bay
>new file mode 100644
>index 0000000000000000000000000000000000000000..b4b945e8d8d26ff300b54916bcbea257817addcf
>GIT binary patch
>literal 3219
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Grand_Turk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Grand_Turk
>new file mode 100644
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Grenada b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Grenada
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>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guadeloupe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guadeloupe
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>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guatemala b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guatemala
>new file mode 100644
>index 0000000000000000000000000000000000000000..abf943be0fe277c7435ac9e5d51718028ef216b2
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guayaquil b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guayaquil
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guyana b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Guyana
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Halifax b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Halifax
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Havana b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Havana
>new file mode 100644
>index 0000000000000000000000000000000000000000..1a58fcdc988ea6ec1bb660ceabe85ea19e5b0774
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Hermosillo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Hermosillo
>new file mode 100644
>index 0000000000000000000000000000000000000000..ec435c23bc47f925bd70754b38bc8b1d2c4d3943
>GIT binary patch
>literal 454
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Indianapolis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Indianapolis
>new file mode 100644
>index 0000000000000000000000000000000000000000..4a92c06593d33d3969756f482e5d3d4b773984ef
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Knox b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Knox
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc785da97de0a5614613f9ba6e502d7dc5f525b5
>GIT binary patch
>literal 2437
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Marengo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Marengo
>new file mode 100644
>index 0000000000000000000000000000000000000000..a23d7b7596fc3019a2b6847a7593007f985e7e13
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Petersburg b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Petersburg
>new file mode 100644
>index 0000000000000000000000000000000000000000..f16cb30406e3b28e82ab528d0781280ab5f13a59
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Tell_City b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Tell_City
>new file mode 100644
>index 0000000000000000000000000000000000000000..0250bf90f8fc8716a77163e7c1b92663fc6d96f7
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>literal 1735
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Vevay b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Vevay
>new file mode 100644
>index 0000000000000000000000000000000000000000..e934de61adb342d238789c5dab9155408f8cd778
>GIT binary patch
>literal 1423
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Vincennes b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Vincennes
>new file mode 100644
>index 0000000000000000000000000000000000000000..adbdbeee629ea60b60c32d0742a9a69ab5990eba
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Winamac b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indiana/Winamac
>new file mode 100644
>index 0000000000000000000000000000000000000000..b34f7b27eee88867fd131f0e9b87b4c3b4c071c4
>GIT binary patch
>literal 1787
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indianapolis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Indianapolis
>new file mode 100644
>index 0000000000000000000000000000000000000000..4a92c06593d33d3969756f482e5d3d4b773984ef
>GIT binary patch
>literal 1675
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Inuvik b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Inuvik
>new file mode 100644
>index 0000000000000000000000000000000000000000..1388e8a4d93dc8e04680aa2aa9e33f32495e26fd
>GIT binary patch
>literal 1928
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Iqaluit b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Iqaluit
>new file mode 100644
>index 0000000000000000000000000000000000000000..0785ac576173f7b7a5e7c2740df5f1f3492a4950
>GIT binary patch
>literal 2046
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Jamaica b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Jamaica
>new file mode 100644
>index 0000000000000000000000000000000000000000..7aedd262a57f096cda47a8542b3b66633561641d
>GIT binary patch
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Jujuy b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Jujuy
>new file mode 100644
>index 0000000000000000000000000000000000000000..a74ba046226060a01c6255b6714a40211f739a24
>GIT binary patch
>literal 1081
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Juneau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Juneau
>new file mode 100644
>index 0000000000000000000000000000000000000000..d00668ad189cc7627b9301e08c00d84f1688ab92
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kentucky/Louisville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kentucky/Louisville
>new file mode 100644
>index 0000000000000000000000000000000000000000..fdf2e88b48cecddf4eafa6d8a41ba7363e4874d6
>GIT binary patch
>literal 2781
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kentucky/Monticello b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kentucky/Monticello
>new file mode 100644
>index 0000000000000000000000000000000000000000..60991aa38f5ca016d9f87bd6cb5b436ec799a10c
>GIT binary patch
>literal 2361
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Knox_IN b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Knox_IN
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc785da97de0a5614613f9ba6e502d7dc5f525b5
>GIT binary patch
>literal 2437
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kralendijk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Kralendijk
>new file mode 100644
>index 0000000000000000000000000000000000000000..d308336bec9a539742ca3885c44a4d3c5a674463
>GIT binary patch
>literal 212
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>
>literal 0
>HcmV?d00001
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/La_Paz b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/La_Paz
>new file mode 100644
>index 0000000000000000000000000000000000000000..bc3df523516d19191aa9d9b88ecc97c3ea1acd4c
>GIT binary patch
>literal 257
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Lima b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Lima
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Los_Angeles b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Los_Angeles
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>index 0000000000000000000000000000000000000000..c0ce4402f60a135017d49933afdbee55916b9be3
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Louisville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Louisville
>new file mode 100644
>index 0000000000000000000000000000000000000000..fdf2e88b48cecddf4eafa6d8a41ba7363e4874d6
>GIT binary patch
>literal 2781
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Lower_Princes b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Lower_Princes
>new file mode 100644
>index 0000000000000000000000000000000000000000..d308336bec9a539742ca3885c44a4d3c5a674463
>GIT binary patch
>literal 212
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Maceio b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Maceio
>new file mode 100644
>index 0000000000000000000000000000000000000000..54442dc737ede2aab1b597ee71a1db3aa8e33aa1
>GIT binary patch
>literal 770
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Managua b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Managua
>new file mode 100644
>index 0000000000000000000000000000000000000000..c543ffd475e374b39c6800fcc69c3c06b6eb5dd3
>GIT binary patch
>literal 463
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Manaus b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Manaus
>new file mode 100644
>index 0000000000000000000000000000000000000000..855cb02c4082719f3a51c8401288c013efefe683
>GIT binary patch
>literal 630
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Marigot b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Marigot
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Martinique b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Martinique
>new file mode 100644
>index 0000000000000000000000000000000000000000..f9e2399c9d2254d5c447fbd0b6dc6be303569262
>GIT binary patch
>literal 257
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Matamoros b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Matamoros
>new file mode 100644
>index 0000000000000000000000000000000000000000..5671d25816de263b5de2d310bd974fed88238605
>GIT binary patch
>literal 1416
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mazatlan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mazatlan
>new file mode 100644
>index 0000000000000000000000000000000000000000..afa94c2ac5c1679d39143eae062b812070876492
>GIT binary patch
>literal 1564
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mendoza b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mendoza
>new file mode 100644
>index 0000000000000000000000000000000000000000..5e8c44c8934960e2010e7b0505966747cb2c6e50
>GIT binary patch
>literal 1109
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Menominee b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Menominee
>new file mode 100644
>index 0000000000000000000000000000000000000000..55d6e326692c81a3a526ee65fa5ece091ba5101e
>GIT binary patch
>literal 2283
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Merida b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Merida
>new file mode 100644
>index 0000000000000000000000000000000000000000..ecc1856e1e513bed6a07a80a01e0b9d9dc706c8a
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Metlakatla b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Metlakatla
>new file mode 100644
>index 0000000000000000000000000000000000000000..c0335970448cf4d433b86e08d79ae4b9a167e1f6
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mexico_City b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Mexico_City
>new file mode 100644
>index 0000000000000000000000000000000000000000..f11e3d2d66a2d7c21f498df96c3fd1db3a0d8817
>GIT binary patch
>literal 1618
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Miquelon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Miquelon
>new file mode 100644
>index 0000000000000000000000000000000000000000..75bbcf2bcf70ebc700cb98526d0f2a1e5cccc438
>GIT binary patch
>literal 1696
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Moncton b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Moncton
>new file mode 100644
>index 0000000000000000000000000000000000000000..51cb1ba3d2de0ad19453704e4b796dfdf0dd8464
>GIT binary patch
>literal 3163
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Monterrey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Monterrey
>new file mode 100644
>index 0000000000000000000000000000000000000000..dcac92bad609fac72c04077782dd08a9876eeeb9
>GIT binary patch
>literal 1416
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montevideo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montevideo
>new file mode 100644
>index 0000000000000000000000000000000000000000..f524fd219e753111d18e26ea890a8ea16b5e0566
>GIT binary patch
>literal 1564
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montreal b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montreal
>new file mode 100644
>index 0000000000000000000000000000000000000000..7b4682a39e2fc97450c99eed4576d2a4614bf294
>GIT binary patch
>literal 3503
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montserrat b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Montserrat
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nassau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nassau
>new file mode 100644
>index 0000000000000000000000000000000000000000..e5d0289b511f89e273438cc487b0dafad48093ee
>GIT binary patch
>literal 2284
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/New_York b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/New_York
>new file mode 100644
>index 0000000000000000000000000000000000000000..7553fee37a5d03e9163ee19b1ced730a02345cfb
>GIT binary patch
>literal 3545
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>literal 0
>HcmV?d00001
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nipigon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nipigon
>new file mode 100644
>index 0000000000000000000000000000000000000000..f8a0292b25999d4726ceed52d1b55a4713700045
>GIT binary patch
>literal 2131
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nome b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Nome
>new file mode 100644
>index 0000000000000000000000000000000000000000..c886c9bc0f46a6677e9824fb188761b6dbc418ff
>GIT binary patch
>literal 2376
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Noronha b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Noronha
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/Beulah b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/Beulah
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/Center b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/Center
>new file mode 100644
>index 0000000000000000000000000000000000000000..8035b24fafeff6fad833094f814905213b2f3a0b
>GIT binary patch
>literal 2389
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/New_Salem b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/North_Dakota/New_Salem
>new file mode 100644
>index 0000000000000000000000000000000000000000..5b630ee66715d60ee99405709d86e0e6a0c8b29c
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>literal 2389
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Ojinaga b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Ojinaga
>new file mode 100644
>index 0000000000000000000000000000000000000000..190c5c86dd8f1f00ecc13448c649acc97e93df58
>GIT binary patch
>literal 1522
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Panama b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Panama
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c1c06372c6dc8610ffd14f74e923bdcb9b21d31
>GIT binary patch
>literal 203
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Pangnirtung b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Pangnirtung
>new file mode 100644
>index 0000000000000000000000000000000000000000..df78b62682a5b376f6d7ca894c842f6b3d57f363
>GIT binary patch
>literal 2108
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Paramaribo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Paramaribo
>new file mode 100644
>index 0000000000000000000000000000000000000000..1b608b3e57479c8ba49789483e4f19e037058d9a
>GIT binary patch
>literal 296
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Phoenix b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Phoenix
>new file mode 100644
>index 0000000000000000000000000000000000000000..adf28236a2feb68f177f5b002ea068db59eea997
>GIT binary patch
>literal 353
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Port-au-Prince b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Port-au-Prince
>new file mode 100644
>index 0000000000000000000000000000000000000000..7306caeffa0ba1d1b8a9b37d9459ebaabaecdb20
>GIT binary patch
>literal 1455
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Port_of_Spain b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Port_of_Spain
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Porto_Acre b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Porto_Acre
>new file mode 100644
>index 0000000000000000000000000000000000000000..b612ac23562126db6b0aa3ce26dea6760c15be24
>GIT binary patch
>literal 662
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Porto_Velho b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Porto_Velho
>new file mode 100644
>index 0000000000000000000000000000000000000000..2423fc19a8a0c15451876f0f8f7c469112c2d078
>GIT binary patch
>literal 602
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Puerto_Rico b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Puerto_Rico
>new file mode 100644
>index 0000000000000000000000000000000000000000..d4525a68a60351f19a16e0b6f4f1422b71ff3fcf
>GIT binary patch
>literal 255
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Punta_Arenas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Punta_Arenas
>new file mode 100644
>index 0000000000000000000000000000000000000000..4d84eed4e235bdcfb3ed8ea457e1bef3717db3bd
>GIT binary patch
>literal 1911
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rainy_River b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rainy_River
>new file mode 100644
>index 0000000000000000000000000000000000000000..70dcd2d8014a3dccb9c3cdcd83158af262afe6a2
>GIT binary patch
>literal 2131
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rankin_Inlet b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rankin_Inlet
>new file mode 100644
>index 0000000000000000000000000000000000000000..9f50f36ef45a0210a0dbcfda1ff734fab79f8153
>GIT binary patch
>literal 1930
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Recife b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Recife
>new file mode 100644
>index 0000000000000000000000000000000000000000..fe55739dd36e6dfea5f340f2d099c30424ba4e62
>GIT binary patch
>literal 742
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Regina b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Regina
>new file mode 100644
>index 0000000000000000000000000000000000000000..5fe8d6b618e34c4c87a7eac43f7a27af41161d02
>GIT binary patch
>literal 994
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Resolute b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Resolute
>new file mode 100644
>index 0000000000000000000000000000000000000000..884b1f6470c78c482f0daa280b85e01312c764da
>GIT binary patch
>literal 1930
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rio_Branco b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rio_Branco
>new file mode 100644
>index 0000000000000000000000000000000000000000..b612ac23562126db6b0aa3ce26dea6760c15be24
>GIT binary patch
>literal 662
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rosario b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Rosario
>new file mode 100644
>index 0000000000000000000000000000000000000000..8c58f8c23eb0d66d80714a9789b5c20abf043ca2
>GIT binary patch
>literal 1109
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santa_Isabel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santa_Isabel
>new file mode 100644
>index 0000000000000000000000000000000000000000..29c83e71ffa6b071c52b2360295bf55009c09b76
>GIT binary patch
>literal 2356
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santarem b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santarem
>new file mode 100644
>index 0000000000000000000000000000000000000000..d776a43877dc872da5bc370cb2b186f7b0890b47
>GIT binary patch
>literal 632
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santiago b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santiago
>new file mode 100644
>index 0000000000000000000000000000000000000000..ab766a41bc06db2956154da6e2fb0dfc3e9c1b2a
>GIT binary patch
>literal 2538
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santo_Domingo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Santo_Domingo
>new file mode 100644
>index 0000000000000000000000000000000000000000..cc2cbf2b1209b83085dd63f3df98e8f5c4fc3991
>GIT binary patch
>literal 491
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Sao_Paulo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Sao_Paulo
>new file mode 100644
>index 0000000000000000000000000000000000000000..308a545ce5931939fb6353fa4273aedf00b49372
>GIT binary patch
>literal 2016
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Scoresbysund b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Scoresbysund
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>index 0000000000000000000000000000000000000000..8e1366ca39a856d17bf16d5eb331e308890c7ce8
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Shiprock b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Shiprock
>new file mode 100644
>index 0000000000000000000000000000000000000000..7fc669171f88e8e1fb0c1483bb83e746e5f1c779
>GIT binary patch
>literal 2453
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Sitka b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Sitka
>new file mode 100644
>index 0000000000000000000000000000000000000000..662b8b67e581cab42ae250c672580bf224bd17e8
>GIT binary patch
>literal 2350
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Barthelemy b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Barthelemy
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Johns b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Johns
>new file mode 100644
>index 0000000000000000000000000000000000000000..a1d14854af6b82bfe814f2c64aac01bc053d5fcb
>GIT binary patch
>literal 3664
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Kitts b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Kitts
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eC<zyoQ1C|Nmnl3=IGOA3wmr;^P~_;1~?#0zn7~
>Vru_ix0GaatKYmlWfX16}0RSy&9%BFi
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Lucia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Lucia
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eC<zyoQ1C|Nmnl3=IGOA3wmr;^P~_;1~?#0zn7~
>Vru_ix0GaatKYmlWfX16}0RSy&9%BFi
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Thomas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Thomas
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eC<zyoQ1C|Nmnl3=IGOA3wmr;^P~_;1~?#0zn7~
>Vru_ix0GaatKYmlWfX16}0RSy&9%BFi
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Vincent b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/St_Vincent
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
>zcmWHE%1kq2zyM4@5fBCe7@MO3$eC<zyoQ1C|Nmnl3=IGOA3wmr;^P~_;1~?#0zn7~
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Swift_Current b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Swift_Current
>new file mode 100644
>index 0000000000000000000000000000000000000000..4db1300a26ed4ad20bed915020eb3af8ba639e33
>GIT binary patch
>literal 574
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tegucigalpa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tegucigalpa
>new file mode 100644
>index 0000000000000000000000000000000000000000..7aea8f9989fbdedf0527a172b41871e70d439060
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>literal 278
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Thule b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Thule
>new file mode 100644
>index 0000000000000000000000000000000000000000..deefcc8df5a1111fb1ccacd1d67f44165d9a736c
>GIT binary patch
>literal 1528
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Thunder_Bay b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Thunder_Bay
>new file mode 100644
>index 0000000000000000000000000000000000000000..aa1d486097689f5c686d24abbeea0868667118e6
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>literal 2211
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tijuana b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tijuana
>new file mode 100644
>index 0000000000000000000000000000000000000000..29c83e71ffa6b071c52b2360295bf55009c09b76
>GIT binary patch
>literal 2356
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Toronto b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Toronto
>new file mode 100644
>index 0000000000000000000000000000000000000000..7b4682a39e2fc97450c99eed4576d2a4614bf294
>GIT binary patch
>literal 3503
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tortola b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Tortola
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Vancouver b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Vancouver
>new file mode 100644
>index 0000000000000000000000000000000000000000..9b5d924173e6e71c2c0a73cf2aca368d3af002e6
>GIT binary patch
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Virgin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Virgin
>new file mode 100644
>index 0000000000000000000000000000000000000000..447efbe2c967cc5642b58f51aff86b67073134fb
>GIT binary patch
>literal 170
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>
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Whitehorse b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Whitehorse
>new file mode 100644
>index 0000000000000000000000000000000000000000..6b62e2d3c39a8406cdc087b387fbdac0709f9141
>GIT binary patch
>literal 2093
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Winnipeg b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Winnipeg
>new file mode 100644
>index 0000000000000000000000000000000000000000..2ffe3d8d8e012445aa961fc53b38934681dd2a2c
>GIT binary patch
>literal 2891
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Yakutat b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Yakutat
>new file mode 100644
>index 0000000000000000000000000000000000000000..523b0a1081ade2feb2e163279c0b9960f8550099
>GIT binary patch
>literal 2314
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Yellowknife b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/America/Yellowknife
>new file mode 100644
>index 0000000000000000000000000000000000000000..d9d6eff70d7aadc55e202b7d31ccb1359870b81a
>GIT binary patch
>literal 1980
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Casey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Casey
>new file mode 100644
>index 0000000000000000000000000000000000000000..d0bbacc8a9647d6d31b36a561c6b5922c71d505c
>GIT binary patch
>literal 311
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Davis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Davis
>new file mode 100644
>index 0000000000000000000000000000000000000000..40a992664e2b228b0f6ab99a7aa655df53015dcf
>GIT binary patch
>literal 311
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/DumontDUrville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/DumontDUrville
>new file mode 100644
>index 0000000000000000000000000000000000000000..06863534c4c733f9a1a11800b614ec901e64cc6c
>GIT binary patch
>literal 216
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Macquarie b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Macquarie
>new file mode 100644
>index 0000000000000000000000000000000000000000..aea2be77cccb5187ecacca5673cc5b42543dd3c9
>GIT binary patch
>literal 1543
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Mawson b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Mawson
>new file mode 100644
>index 0000000000000000000000000000000000000000..5197dd97b9f871f533ff418b1870e593530cd501
>GIT binary patch
>literal 225
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/McMurdo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/McMurdo
>new file mode 100644
>index 0000000000000000000000000000000000000000..a5f5b6d5e60f15ebdbb747228006e8fe06dd4a01
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Palmer b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Palmer
>new file mode 100644
>index 0000000000000000000000000000000000000000..43a01d3e62d45456e5f7317d2a9d17a5e746058d
>GIT binary patch
>literal 1432
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Rothera b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Rothera
>new file mode 100644
>index 0000000000000000000000000000000000000000..56913f8a10cb61305ddc4025c51f72e56b195781
>GIT binary patch
>literal 186
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/South_Pole b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/South_Pole
>new file mode 100644
>index 0000000000000000000000000000000000000000..a5f5b6d5e60f15ebdbb747228006e8fe06dd4a01
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Syowa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Syowa
>new file mode 100644
>index 0000000000000000000000000000000000000000..94a9d5a282eab90fadd38e144b3987bf6f4e7da6
>GIT binary patch
>literal 187
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Troll b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Troll
>new file mode 100644
>index 0000000000000000000000000000000000000000..3757faccb282a975e3130e5ed9a84bc0e5881a79
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Vostok b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Antarctica/Vostok
>new file mode 100644
>index 0000000000000000000000000000000000000000..9fa335c4478a8205ecacb645c636ebc07ad714b0
>GIT binary patch
>literal 187
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Arctic/Longyearbyen b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Arctic/Longyearbyen
>new file mode 100644
>index 0000000000000000000000000000000000000000..239c0174d361ff520c0c39431f2158837b82c6e0
>GIT binary patch
>literal 2251
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aden b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aden
>new file mode 100644
>index 0000000000000000000000000000000000000000..e71bc4e802cbdfd9f90598029e0fda04c4074ab3
>GIT binary patch
>literal 187
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Almaty b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Almaty
>new file mode 100644
>index 0000000000000000000000000000000000000000..49a4b4de7b31924d138a6e22aa0a16af1868cf1a
>GIT binary patch
>literal 1031
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Amman b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Amman
>new file mode 100644
>index 0000000000000000000000000000000000000000..c3f0994a75301237adcad05cb13a085a59359c70
>GIT binary patch
>literal 1877
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Anadyr b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Anadyr
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>index 0000000000000000000000000000000000000000..0e623cf746b29bf73989ffec96f26c49e737ccc7
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aqtau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aqtau
>new file mode 100644
>index 0000000000000000000000000000000000000000..5803a3d3e3fac98ec8bebf8a7cce414a79e137a4
>GIT binary patch
>literal 1017
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aqtobe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Aqtobe
>new file mode 100644
>index 0000000000000000000000000000000000000000..808a50261335b48599f0a77e448de23b301ea78a
>GIT binary patch
>literal 1047
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ashgabat b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ashgabat
>new file mode 100644
>index 0000000000000000000000000000000000000000..046c472827eb47d46e31cd69611cff04e45400c0
>GIT binary patch
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ashkhabad b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ashkhabad
>new file mode 100644
>index 0000000000000000000000000000000000000000..046c472827eb47d46e31cd69611cff04e45400c0
>GIT binary patch
>literal 651
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Atyrau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Atyrau
>new file mode 100644
>index 0000000000000000000000000000000000000000..27072eb51cd838727233db12dee866fae3b81967
>GIT binary patch
>literal 1025
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Baghdad b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Baghdad
>new file mode 100644
>index 0000000000000000000000000000000000000000..3aacd78b1d503a3adf7fd3a9085d1c1eed94fa16
>GIT binary patch
>literal 1004
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bahrain b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bahrain
>new file mode 100644
>index 0000000000000000000000000000000000000000..a0c5f669628d8ecd61c398bc475cf2405d20000b
>GIT binary patch
>literal 225
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Baku b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Baku
>new file mode 100644
>index 0000000000000000000000000000000000000000..a17d1ad8c8ef1fe25c033ca2ff88b75da7627828
>GIT binary patch
>literal 1269
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bangkok b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bangkok
>new file mode 100644
>index 0000000000000000000000000000000000000000..8db5e8a61ee9e63164ce7f07969557fafa982dde
>GIT binary patch
>literal 220
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Barnaul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Barnaul
>new file mode 100644
>index 0000000000000000000000000000000000000000..60efb41b45ba1dc51ad67f65be0361085ba9cb2b
>GIT binary patch
>literal 1255
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Beirut b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Beirut
>new file mode 100644
>index 0000000000000000000000000000000000000000..72f0896341a76e6be611d04e0b1aaec26f6f4a45
>GIT binary patch
>literal 2175
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bishkek b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Bishkek
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>index 0000000000000000000000000000000000000000..e3f81ee3327308132b4e9910fffef558850d0ce4
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Brunei b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Brunei
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>literal 229
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Calcutta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Calcutta
>new file mode 100644
>index 0000000000000000000000000000000000000000..b57972dd8ab55785d8cb21b90b5277d8fc850fdc
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chita b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chita
>new file mode 100644
>index 0000000000000000000000000000000000000000..95f56456e5264b11295251f941115a9b877a64e8
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Choibalsan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Choibalsan
>new file mode 100644
>index 0000000000000000000000000000000000000000..15b358f2f4ddec8b2543f883ada86d2aa3771136
>GIT binary patch
>literal 991
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chongqing b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chongqing
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbd132f2b0bcc8beab08e04b182751795c853127
>GIT binary patch
>literal 414
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chungking b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Chungking
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbd132f2b0bcc8beab08e04b182751795c853127
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>literal 414
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Colombo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Colombo
>new file mode 100644
>index 0000000000000000000000000000000000000000..28fe4307d75db1d500d815b4269cfd82de7cbfe7
>GIT binary patch
>literal 413
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dacca b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dacca
>new file mode 100644
>index 0000000000000000000000000000000000000000..98881f093ae76753e8757dc3fa50fcf7fd1f8b63
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Damascus b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Damascus
>new file mode 100644
>index 0000000000000000000000000000000000000000..ac457646bb0205eabde9526bff8ae41d33df550b
>GIT binary patch
>literal 2320
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dhaka b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dhaka
>new file mode 100644
>index 0000000000000000000000000000000000000000..98881f093ae76753e8757dc3fa50fcf7fd1f8b63
>GIT binary patch
>literal 370
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dili b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dili
>new file mode 100644
>index 0000000000000000000000000000000000000000..c94fa610f952981a865abe4a9d9cbdc26946ab3f
>GIT binary patch
>literal 253
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dubai b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dubai
>new file mode 100644
>index 0000000000000000000000000000000000000000..c12f31a141db7e6e02f7274e114c1cd6be2ff1e6
>GIT binary patch
>literal 187
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dushanbe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Dushanbe
>new file mode 100644
>index 0000000000000000000000000000000000000000..67c772b4d9d711dba166b802bfc5e1f64ae004da
>GIT binary patch
>literal 621
>zcmchUJxc>Y5J30zG$ATnqsb*v<L3!M2tpK8B$XgUNO6UTg;*#73oENg0=9zw0E+`V
>zu~D$Im|ASCZ7j5~F^z>5dd@oy2v#=EGV_*U7iQo3tJTdZ^DE-oA&Immd#9o0)ZK4f
>zo-_-+-d@m`x^R;5^IY=n@hJ855V&`)lfJ12nX6sNo^470@rn!_EXiPPR&v{U8CuKA
>zaJffD=00RJ-;}Y;y^MF=if6x<yqD+F#PwmN9)_W@+S|UC-SJ~}#$v{l7{V-8jBU)u
>zj-_+?>!!O^TOCU~oGCB+CSNFO&S*|^)mR$QMvMQ4*S~&W(g8y(Kupla2E+)&N<=jS
>zu>&y#u>>&%u>~;(u?8^*u?H~-u?R5<u?aB>u?jI8QSCwu!@AD?f0h&T`UeY>#l$CU
>CZF_?N
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Famagusta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Famagusta
>new file mode 100644
>index 0000000000000000000000000000000000000000..021f8a2dd78a0a493f58af2ae4107dfddb4f2d40
>GIT binary patch
>literal 2042
>zcmdtiZ%kEn9LMo<LsnkYzGy~v`D2nPc!3L7Objw3#6Mg;#!X8ljtLhmqC_Dm?Yc><
>zIp)49n{(-A6IpAHbkllZf2KKSo1?R(4_afLvQ=xs+RWLXvHHD__NWKWr=7cdUT0_b
>zKKs2t@wJ;0CDwngyUiQETuJlgIemw@9epi3JbvT@FF3r{P5ZOKoABv*dt!f?Gild%
>z?!Db1N7`4q=^MwK$+ez6B{t2wFM8IVntR5%e@efdk#fYzxYlDoaOEv$+E>l?gP%7!
>zp^v-W%ws#ftb++RySLHH*|x-;-cs#7v_9XRQIqH8mQQdW4ySoDL!<5^X(QgO)HHk6
>z^`JBRhY>sP(p4w_+?V#8lS59p|Abx8cibuL-e(tW-Rnde+U?@HL9ZmX$BkB~H@9Gm
>zTbkA8%`54Yd1FbLAL`Tj!yBaRuMS=CNu@mY&9hoQP_GrI7wF?Xi*(^TnfgQ`R~L1c
>z$&-sywXz{3PtE*Et18E2aq1UZo%^j+kNzl2Q_jfJp$oF?$`M&U_`cL!{7hrJdu7G3
>zcXefJtJu9eb=8_(`gBX9);`*z@tSIVCS!%J4(I9W8xdXOCf(<*&z7|x{-*0L2W9=?
>zbg4UeRh~~?lls0Paq2J2hV8%T3kyGzjdd5bA?JWJRt#$5o>SVCrP}oKer+CW(@ht;
>z^u^)0zVzNYZ8^VLUVghmTL)_8mF66MwWm}zuPT?eM22iB&X%oJe@J_}B^^amwd2?C
>zrE}5^?R3vc*XY;!`tbpIW9YPQJ8)LF4<6DtyZSY`JE_)Pfjj%8jJy3O_4Yrx^$W|&
>zxnxeCl^+R=v#iYN*7$$#H{aw(tcf?@)WqUeRaGswxHTsd<zIn-6}UzG4$k}U{MTH6
>zn~QVLGiM(;|40K!2S^J@4@eV87f2gOA4nreCrB$uFGw@KrW>Rkq#vXqq$8vyq$i{)
>zq${K?q%Wi~q%)*7q&K8Fq&r{J9?~DuAkrbyBGMz$B+@0)CekO;DAFm?D$*;`EYhv7
>zX&33&*EEcDjI@mOj5LjOjkJyQjWmvQj<k;Sjx>*SkF<~U?`t*y*#Td(1;`#Cn}F;B
>zvJJ>SARB?~1hN&#ULc!+>;|$O$bR^m4MBDU*%D+=kWE2$1=$v4UyzMKb_UrRWN(no
>zL3Rh(9%O%z4e~WRglrMAN6022yM$~LvQNlHAv=X^6|z^zW+A(UY!|X$$cFiv9YeOv
>v*X$XxX~?c2+lK5LvT?}H;s0stf@T5>N*Kd%ELvDv7%7T|W5p5wX>RZzDF@N9
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Gaza b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Gaza
>new file mode 100644
>index 0000000000000000000000000000000000000000..60d0de00ad21c8a7260046dc49fdfa9e040838f1
>GIT binary patch
>literal 2295
>zcmd7SZA?{l0LSrj1xaDl$ZXCLLL!QC@$z)TBnY~onAj<=Opu2^$%E$8DbYcI+?uhO
>zE`~kL$-)<mjZG)!m~)LDSdXUN6Kbus*1s1jLx`h1C^)76_wcf*>s{yU+|Pd(?wh;&
>z`+5tvRwioyx`Na@JX|g6;XK!;UcN8*RGz=`m44y)J?*D&M@@for8GNh&7b!R+4t@b
>z#>I**-=%HR?00V#{i9BOAmpqVxGc=;gOk=^_YQ5y-)Q~)@l9>G>$G9jF7n-IxoX`k
>zEYL=F&o@R_9`cQCXfwtm!hE;feb%k1Y;9s*kTLPsIc;)cg>`3fmOiWgpqzEL%bYzv
>zAc8xR%<#`|%cl<9FeA=Si3Q?_9{Khu5tZ9*K3(#OTo_rbM;E%pA}vFY2^o?xzg#sJ
>zU-!!;Uk2#0mj=bs&IRVO&njfx0f*^4x=O~EcIwOPVx?>KH>T^_BQl{pM<izUiX_hx
>zksQ@7Qlf)}+tDQ42S?;HPnL<)Adj9p)gV_43-j4OOXW&`mYMcNrhM*Xw3*(vP-Zj-
>zna?-Ql$k|u$*huV@`cPZmdDv4vLC;z=REqG%<11{tQwprSDy(pbAOzaYmTLf7f-~u
>zt}W{^^FEkpU6<0Uzf}FZ&^NWnm%TmW70)q!eR7-d=5E(F%<Yr;vFr5wv0iKAoO5F1
>z<#wxJ<hUs8Zn8FAd`}d8xWy_yZHSV6?--@6homT}GRo?A%2(5Kjm<^6ERR@bRHP-!
>zihH3(RrnLK>W^V#%bjt#^}7)3wJUSPwvHid``2S)N0Z;$+5W58Re8!X_Ma86=e%#d
>zQGQhHj@e^Xdm6-^#||5Nok!%};cBBMv`*Ie^Nre}V)^FDRHN=fhOBR%Z#0~UlKX1h
>zR^vzMVus_vcVNJM?-`Dn+z<ZzfBvhcMe6Eztu1vq0yQl>Qk!j`L+x|e^gC<wyjphl
>zdS1L*u17uUY+sIPyboW|VfCN(if&JTM4M7qL(iHnWL3zrkaZyoLso_?4OttqIAnFm
>z@{sk}ss$n|v{g$))`%<;StYVeWSz)Dk(DA#Mb?Te7FjK_Tx7krYQe~gZPk*IH6x4W
>z>tNNkYT3xTk%c2GN0yGP9a%iGdSv;?`jG-46+lXW)WB910jUB~2BZ#1A&^QSr9f(d
>z6a%RSQVv^H52PSSMUavpH9?AkRK-@61*r>C7+X~tq%=rvkm4ZKLCS;F2PqIzA*4h|
>zjgTTCRYJ;y)X7#A3aJ!QDx_9Ov5;yZ<wEL(6bz{tQZl4wNYRk0A!S4Ah7`_LRSqeg
>zt*RYTJfwO^`H=b{1w<-{ln|*QQbeSRNEwkjB89Y7l|)Kut7?f96R9RrPNbelL6M3g
>zB}HnA6cwo|QdXp{NMVu6BBixewMB|+tE!8X7pX5&V5GuGiIEy3Mb;jc%=-p8An<>j
>d<Y3imXCl>(%S(z+j(0Clh|5cG#iwuz{s)+r^!ES&
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Harbin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Harbin
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbd132f2b0bcc8beab08e04b182751795c853127
>GIT binary patch
>literal 414
>zcma)%y$%6E6ov01AsdnK0RGwCh(;k=S&0xTQ;84_wi_?7<`F!PCs;~}D7?f(B^vIT
>zl7ch2`)zh+C+8E>VAZ0p#Q6&b$@1Vmt@shmEEPQ+dAwxQ={D8*Lz@c0P8P$BDh-yh
>zJRhox=gVq;O|{%Y*PQ{??_KRC8|0oVI%a(=qV1LMrEqU0h@_&_Xe`L@@k|6ZIO2E7
>z93L|!ALb9D7bk4{9*EM0TpUDs5CS+32?Qb_WIzakkOCnFLJol-2uVX01tDw5!t~*5
>M#r`q2S-#n^-;pX<T>t<8
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hebron b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hebron
>new file mode 100644
>index 0000000000000000000000000000000000000000..a2e1b364f9b50814468b5bf76290bfeec2bac37c
>GIT binary patch
>literal 2323
>zcmd7SZA?{l0LSrj1xaDl%xvZeArVEn$m0!@An1Z#6FTLU3G(nKdC+`1B{~QYYQ$!`
>zm}xbq3tuocmQBpD<{Uk+9!<L^)LP5dzZVKah@(6xIHmvh@Up2}uR3Sve*U{~-`w5b
>z*PFk&JYM_P6`<bX;X0@u&T|^n%lCPo%5zt~($62itNrxti0NxCmu7pl`E#R?J@5Qr
>zTqx^kxVS}{eXfn7Z^Wth2b~uEmxOt3V8R;c+@=ls>aD*&yrB(soHDHHg$>saT(xfG
>z=V`+`=NTg__BV{KYca+`XEoe(^;kD2Gqv%#0mk@WXSIp(<<{**8TyRceR9T~4s+&M
>zzX)tgFhf4SC7;}T-3&c9DdvmAde~bhMYyNae5&Xpxge}ikI0V|3$-*oGH6gn{&Lk^
>zbj>Fhf9a=3T^tZg+UJ`~&y>mNy$;iPWTlKLZr7L9M9J7y-<Ywz56QUFED@jHEfU;|
>zMPhiXNQwv)E=QAa?HiU)KVBk|1KfJ@WSv|-B+O_2ES4*L8D`2C>GIhV5oT)30-4qv
>zU_MtrU8WbjDKm<C<@4#ES#D>W$b9sUp7ro=GOKTgv2tLpTy-Wu_xv~^S076eFMNDi
>zt|{p<vk#3Q%}MIka|(iFPUB_$#me7>zTtp;$=fAfb|2H%CbkH#XRE$$PLIru%F%O2
>zyRG%J&x-YzTCKd{<08Ma$=Yz?T~YA<Cadt2A&U0AZ4@8fFGW#>QBu2IzLM%OHWuiz
>zG<2y^mJ%<^?gkqbA&<$5KZcA=x5wn>?}DsXugn%(+6JwyUyq7yO+IUT>#t%*`AN%Y
>zJS|?!I%vIKdPMAu++|g|>%^`{-ZOSP56j&{l}1%?jjZzJ8r6e^@{JS8M$P#&S=&6%
>zsQV;b?x}KF^&g~)X^#8f{(kqor#Yr`-~aRf;jfw&)~kNu+LBm@zovzRX*2C}uzj92
>z_0F1Xua=p)mKU$)ajQq2?aMKR_rZHQr2f<1)2*qGXp`!y>stK;vM*#~$j*?hA$vnM
>zhwKj79<o1VgUAkT)fSOG+Nw<=yF|8$>=W52vQuQM$X=1nBD+Pli|iNKFtTG?wPj?_
>zwrbPJu90o?b+B(+wQ*$U$kvg)Bb!Hdk8B^=KhglC14s*y9w1FXx?ro?fb;=r1kwql
>z6-Y0TW+2@_+JW=~X^5@r2+|UyCrDF}t{`ne`eLgZgLDRIjjiep(j25aNPCd}APqt~
>zgtQ3h5z-{2OGulLJ|T@lI%TU`h4cz(7Sb)GT}Z!>h9Mn8T4t+yW~-WpbPZ`6(l?}W
>zNav8&A-zMIXREr0w9i)c4{0FML8OI950NG!T}0Z5^bu(!(n+M1NH39Q+Ny3M?X*?>
>zL>h{86lp2aQ>3X#SCO_NeMK6JbQWnX(p#jtNOzI;+N%B{4YpMsMp}&Y7-=%nWu(nW
>rpOHpu4~pnL6Yb~!zm9aEs<$(qjz?!F#3aVJmc>P9$Hm4ZaSHqgVbA@L
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ho_Chi_Minh b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ho_Chi_Minh
>new file mode 100644
>index 0000000000000000000000000000000000000000..92642679c8f9e68c125a8c6fa740ebf61df82417
>GIT binary patch
>literal 389
>zcmWHE%1kq2zyNGO5fBCeZXgD+MH_%bM~`#E#KqcNXHB0qT#P(daLL;4!&Rf*0#CL*
>zX?UwYgMrKTI79va|Nj{nnV4Can1PUqfguH`k%1xk8v_diLs9_)Cj&!40|PGuL)`=h
>zL5PTtZwNyGh|o4L2Vx5#wghW}5g{bF^9NKD&>8<h?gh~xH-l)9yFoO_?I0TDeh>}v
>g1BeFs14M)T0s<iafIvM^jM{$UvH|+mPS>0Z0QvW1Z2$lO
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hong_Kong b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hong_Kong
>new file mode 100644
>index 0000000000000000000000000000000000000000..dc9058e4b578ca8c9bb954af1bbe26a964eaf408
>GIT binary patch
>literal 1189
>zcmd7QOKgl$9ES1JxivGCw22K1;+B(05gVrxw3R5GRu?8|QlVubhN3I1CL<z|5Rpho
>zNGz=WMMPLQHkNu3;#y<Sx^=3h>e7xGTH`z)iG`KeIFs-DolG*Dd7oHQeCrbR#|gS`
>zcsQ%w!@V@=UI*h%*{-2R+nrt}H>3NK_v*H^-QRxIJUCt}534Vko>SN4(TXaYS~yoy
>z`3jq!5|Z@e8TQHW8+mFc?6X_l(tCEg>ASE&Ki@xYUYzLCFB{_K)t>YE^`fZhZ|;!H
>z)N(VhvRwvpYwh67!!np!V227j<*hBT@A?{K_~eLv-`T21_TIH0WS#!lc*TA?v{-+x
>zykkbUmFclrmrb^2RDYS5Fu7@)bw1c)@?)#?*Zykrt+!dmZ*Q^_*Q@0F#Y$T^Ge^|X
>z*|sPV6yL6Z^=}-IKz+srYXUm7)NhLCXLRv_<t7~J)ZuK0iDb^{Nj>dm@{J?9^mK(O
>z+ubV4SLE}%=ifd`?TENPSS5}X1(a$_sxWs|^7CF-A5&|h>v_dgt@HPZ{l$d2Uq36j
>z!<5LJ$fU@u$h643$i&FZ$kfQ($mE`Gc4T@_H$Rd9k^zzek^_<ik_D0mk_VCqk_nOu
>zk_(cIr^^OO$J6D5B!pyyq=e*zB!y&!q=n>#B!*;$q=w{%B!^^&q=)3^=@LXTL{da@
>zM3O`=OD?3zad`rXBAFtoBDo^TBH1G8db)g(ggsrxNXkggNYY5w_#dPlakZD5$PYD~
>B5Gw!x
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hovd b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Hovd
>new file mode 100644
>index 0000000000000000000000000000000000000000..f367a550ff9affc140c118081917effaa31d1f13
>GIT binary patch
>literal 921
>zcmchVJ1j#{0ESOJ5>etV60cJ4N7b_)LF>JsgXAJ1(ndtQ5(cBk8AK4n8M-mtK`<EZ
>zU?CO>CL6IBF%Tn(K~m>yY$l7pIsNXvxlNk?`_0jrsXFm13Hk|#`1Il0kos%m_A8R+
>ze6=!O?p5Z4Q)JzYsqFKB%sKWe*PdJE?&PVw<v8h{cc}caCt1+{s0v%JWs&Df6=xsG
>z66c{RO}G-J@0Ui|)1fH8J1{CPw}j_p)2Q5^6W++IQMDcv)k_0L&1AKx9iLWp!G2lq
>z?^8anS2nmRRby(JY<an`TTjlcw*6DvAK9}4>$`UQ(yG-lxng&kVXLbrWOw_zte&Dy
>zyVn(R52YX3!-)%W_+#51c^;H&(P&gS;^Y4Ki5Ft%P1hjIFr6$)N0JZ|iy~zpXbMkF
>zqdv|0H1SF-<{$d~{P~UkYf*aUmaZXvLpmq)4(T4!Kg0pV1H=Wy2gC`)3&ah?55y6~
>z6U0@F+84wb!5hRK!5_pS!6U>a!6(Ei!7Icq#4p4##52S-#5cq_#5=@2#6M&MkR3p_
>j0NDd%6Odg%wgK4(WFs-^oj|q%|7$PFZF)TcZ&UI&a<;sc
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Irkutsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Irkutsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..84136366d176279caf6b7a55c0cb1e270b41d334
>GIT binary patch
>literal 1276
>zcmdVZPe_wt9Ki8sxz)135t`Q2o-$i&t=24?I{(zPvE~lNh!`1ISqL3QL>NepOu9sL
>z$PUusN9HX$X@m$Ocqovdj0y?*d+8De5k=X0zV8}H9Xj{EJkR&t^S&GGeLrt9)qOIk
>z{@PZW6$V?x433L4X1cYiXmV_L)>Y!^%&aaOoG*0_s?u){(`6qXWY*06m|r`S$hap`
>zQhp~c6*t3DdBrd5dMibrE|T>}lx&E9lB$Ncve7py)$VE8v|>y=_BYz|`H9~A{&B$D
>zb3WjGI;yu!k7(cM4ZZdDW$nM-qqkk^*4xjfbl^l>@8~!u!7~S>rtz@sJXj;UD(a;+
>zSR%Cx<q~oSb?D_!srz26>nC1I!`v4g9$C<h<1cj6z$@K6G_G5^ru3fvXR^0#SVxZE
>zm)7b5-4+>=eU4K)TGcDjkNpxWI4ZG6U9$gOi^T6nrG2JDC$4%W8Gr8T%Vx8-CH8{c
>z?pV5LU*=r&VeyGSkC!_fN_9?|JIZWV>R4JimAY`vW^Q#lqg?qpzhW~h`D=I_`E})L
>zPb5{$3}0Zk8Fgla_*tcFxh?l0Hz)u7xLeJY*5m&A`-|q^W)I!F*i3o+6at)v0fhpE
>zgH=O<!h%AB!h=GD!h}MF!i7SH!iGYJ!iPeL!iYkN!ihr4s$oT;Md4-D5Th`oP@{08
>zkfX4p(4+995Tr1qP^56AkfgA*YG_h;S~Wx|Oes_;Tq$HJY$<dpd?|z}j46~UoGGL!
>rtSPi9ysaAI6y{b9bqaS1c?x?9eF}ftXAG$S^c^S+n>VD%A1eF>x<V9k
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Istanbul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Istanbul
>new file mode 100644
>index 0000000000000000000000000000000000000000..9a53b3a39063e86859b12aa755b78cfb38a26709
>GIT binary patch
>literal 2166
>zcmd_qe@v8h0LSs~aUAC%)b)e#2L33-Ls3H@It;<Wlc5Ja>4}@+_AJqKI`%DVt8C*I
>z%*}N3aoJ>}IZ`4=&bD-ITIsP`!!UYMED2aoYqmKz{nnyi%&zbIskWMb)cUvYv*%vN
>zaq!3OKJWOtEt^WkO=qfpg`3l^Z=Qz|`oY>g(b<)iYj#~cZ6DgW!8yF+1*4}iVZK&#
>z!tN~$JFkb^?7pHRv+t`L_8UL%a*n>g$QWq5W)7tK?XxQ;%#Vf=#^B&F^W5cr<I^Xu
>zI_I|rj0=Y<&EeWK<6<n^`E2eE`}5-K&ZWS5dnE0EIdY}O{^I%(bM$<(F*a<Q<Hz^f
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jakarta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jakarta
>new file mode 100644
>index 0000000000000000000000000000000000000000..37b4edded8bcd470f1afeab00ad16b6b1090ebd3
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jayapura b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jayapura
>new file mode 100644
>index 0000000000000000000000000000000000000000..39ddc84363768c6b407df1077f69ba9dfca8494c
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jerusalem b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Jerusalem
>new file mode 100644
>index 0000000000000000000000000000000000000000..df5119935c5b01676e63d1fb1efd7273b8b4b452
>GIT binary patch
>literal 2265
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kabul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kabul
>new file mode 100644
>index 0000000000000000000000000000000000000000..80429ec408040a47f02ad8ce33fd203013071acf
>GIT binary patch
>literal 229
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kamchatka b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kamchatka
>new file mode 100644
>index 0000000000000000000000000000000000000000..fab27defad0cacc1110a5f513671def88583e0e9
>GIT binary patch
>literal 1198
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Karachi b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Karachi
>new file mode 100644
>index 0000000000000000000000000000000000000000..b7dcaab8f2068adbf69cae0b1cd80f98e7a2da13
>GIT binary patch
>literal 417
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kashgar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kashgar
>new file mode 100644
>index 0000000000000000000000000000000000000000..b44a1e19e9b1212585e55bd65be77665f4ecf6b9
>GIT binary patch
>literal 187
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kathmandu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kathmandu
>new file mode 100644
>index 0000000000000000000000000000000000000000..0cbd2952bb480dd403bc567bdc412c5d92813af1
>GIT binary patch
>literal 238
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Katmandu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Katmandu
>new file mode 100644
>index 0000000000000000000000000000000000000000..0cbd2952bb480dd403bc567bdc412c5d92813af1
>GIT binary patch
>literal 238
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Khandyga b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Khandyga
>new file mode 100644
>index 0000000000000000000000000000000000000000..918369539a5b7d587be3ec826019c7bfa0a13f09
>GIT binary patch
>literal 1311
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kolkata b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kolkata
>new file mode 100644
>index 0000000000000000000000000000000000000000..b57972dd8ab55785d8cb21b90b5277d8fc850fdc
>GIT binary patch
>literal 312
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Krasnoyarsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Krasnoyarsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..faec35d30403b70fccff6de6a523af81467036b8
>GIT binary patch
>literal 1243
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuala_Lumpur b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuala_Lumpur
>new file mode 100644
>index 0000000000000000000000000000000000000000..5c95ebcdc377086c8c646e251569792fe3602c4d
>GIT binary patch
>literal 424
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuching b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuching
>new file mode 100644
>index 0000000000000000000000000000000000000000..62b5389229af5216670b89966a2ddebe56695154
>GIT binary patch
>literal 521
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuwait b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Kuwait
>new file mode 100644
>index 0000000000000000000000000000000000000000..e71bc4e802cbdfd9f90598029e0fda04c4074ab3
>GIT binary patch
>literal 187
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macao b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macao
>new file mode 100644
>index 0000000000000000000000000000000000000000..2c20a32651d9da10d1d6f63495c3cf1fd55c7f16
>GIT binary patch
>literal 771
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Macau
>new file mode 100644
>index 0000000000000000000000000000000000000000..2c20a32651d9da10d1d6f63495c3cf1fd55c7f16
>GIT binary patch
>literal 771
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Magadan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Magadan
>new file mode 100644
>index 0000000000000000000000000000000000000000..2db063560c48c67f0280212a320b183d49d8cffd
>GIT binary patch
>literal 1258
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Makassar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Makassar
>new file mode 100644
>index 0000000000000000000000000000000000000000..3a5dcb27007e1a2ffa67bbf3a30095303b5d67a2
>GIT binary patch
>literal 288
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>z*#!*@91IL~6Bu~FYyltN5C&f$);6#JVoQc_&k#qDYA6UH!395{dj10e$R!{e<QfnS
>RauJB8j;pvpuGF>Q0szU5Jx2fl
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Manila b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Manila
>new file mode 100644
>index 0000000000000000000000000000000000000000..06859a70d9b6a7a10abe85b38775b97319409608
>GIT binary patch
>literal 367
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Muscat b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Muscat
>new file mode 100644
>index 0000000000000000000000000000000000000000..c12f31a141db7e6e02f7274e114c1cd6be2ff1e6
>GIT binary patch
>literal 187
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>jzy!o)2qD49A7C8}3_uhAgNz1o2^i011GLCa*MtiIP}?0H
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Nicosia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Nicosia
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e663b215327d8899a4b3fbe4623f066630b97b2
>GIT binary patch
>literal 2016
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novokuznetsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novokuznetsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..ed4b248276dbabd6b9424bd5f7252729419570f0
>GIT binary patch
>literal 1197
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novosibirsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Novosibirsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..a5d39dffc110700f3f423b7ddd2f525dc09b50bc
>GIT binary patch
>literal 1255
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Omsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Omsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..5e0d9b67a3ee9bf444359b006b2da687604ef190
>GIT binary patch
>literal 1243
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Oral b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Oral
>new file mode 100644
>index 0000000000000000000000000000000000000000..b8eb58d135f62054868473914994d242e1b8be07
>GIT binary patch
>literal 1039
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Phnom_Penh b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Phnom_Penh
>new file mode 100644
>index 0000000000000000000000000000000000000000..8db5e8a61ee9e63164ce7f07969557fafa982dde
>GIT binary patch
>literal 220
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>z1jO0~<{$|m2qA1dP%qdDo*!Tx3=BZi|A%dBJp!UZ)`5iUfoujM?c}ln+Ha?8&IJIu
>C{UtE~
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Pontianak b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Pontianak
>new file mode 100644
>index 0000000000000000000000000000000000000000..ec98c62bab86bc3afbe58caef094734022600c82
>GIT binary patch
>literal 395
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>z*P(c;q=A8viJ6IoiIt6kAq}J+M6xh2WL7Y6Ffi0jVBlk5C}?010+V743`qqH(muW+
>z3;{r_ZD4L}03<De*n%P4GsF={IDyPS0wE;0_Xkwpe;@$48$^TL4x&Ns2hkuufM}3E
>XKs3lNAR6Q!kal|bi3{jWU2`q~jo)5v
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Pyongyang b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Pyongyang
>new file mode 100644
>index 0000000000000000000000000000000000000000..dc24926e80f24b564669b5979736a191114a998d
>GIT binary patch
>literal 267
>zcmWHE%1kq2zyK^j5fBCeHXsJEc^ZI3_w|o+COs4TaY;Y1AoLtlLDZX?3I;|dW=3WP
>zhSDcM1q|gKAk}pf7&yQri;r&zgLiNUgBK9PKnMx8{(x%w4+J3FK{Ut(AR6QfkTl38
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Qatar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Qatar
>new file mode 100644
>index 0000000000000000000000000000000000000000..a0c5f669628d8ecd61c398bc475cf2405d20000b
>GIT binary patch
>literal 225
>zcmWHE%1kq2zyQoZ5fBCe79a+(c^ZJk!cTJzSh^-1sQ>@}KLaBZ69a=m08p60!U3dC
>y%YcEy$2WvQ+rR{fjX@GX5JG|-KOkBdfX4p^*#+W)>;uuH*vVxBwBJtGm<s@Gqaf1&
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Qyzylorda b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Qyzylorda
>new file mode 100644
>index 0000000000000000000000000000000000000000..0fc7fada699081c12e65301b7daa240ab530ab79
>GIT binary patch
>literal 1047
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>zQx|avDh}e1f=()Qa4h%@Zbe+Wh~UsVC^f|IymUx$a`Qg!JvaBg7f8-2U%E1%a(|7u
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>zBGLAbJND72bNPz>7cN_Loz9iSbvswCgnC$=t?efz3EAD&ldZcvIeotDlH(IL(>61F
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Rangoon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Rangoon
>new file mode 100644
>index 0000000000000000000000000000000000000000..3cc2aafac4e27bcbb2de4b08c6451c1a56452808
>GIT binary patch
>literal 297
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>zVPJ^PVBlb2sGGpR2Vwj8hA;#Hv9^Jku>p{@1Sy4r5W?280hNNBAoK&O2Wad6ux*_e
>kK{UuYAR6Q(5Djt`NLf9Q%|M~sxNN{Kw$nAUGB)4>0I_91JOBUy
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Riyadh b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Riyadh
>new file mode 100644
>index 0000000000000000000000000000000000000000..e71bc4e802cbdfd9f90598029e0fda04c4074ab3
>GIT binary patch
>literal 187
>zcmWHE%1kq2zyM4@5fBCeW*`Q!IU0b(RcW&=_5c6>XJBMxV9-7T6k*UZU|{j_4PnqW
>jFa~iMLP#+32UrIK1JK0(AfrKC0>*RM04=i9HRb{Uf07!(
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Saigon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Saigon
>new file mode 100644
>index 0000000000000000000000000000000000000000..92642679c8f9e68c125a8c6fa740ebf61df82417
>GIT binary patch
>literal 389
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>zX?UwYgMrKTI79va|Nj{nnV4Can1PUqfguH`k%1xk8v_diLs9_)Cj&!40|PGuL)`=h
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>g1BeFs14M)T0s<iafIvM^jM{$UvH|+mPS>0Z0QvW1Z2$lO
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Sakhalin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Sakhalin
>new file mode 100644
>index 0000000000000000000000000000000000000000..8d6b4dfe21720eb32abd17fcd627ee9567f93836
>GIT binary patch
>literal 1234
>zcmd7ROGs2v7{Kvwn(>hpM3h>Srj0h)q|TknG#~j)Y-UJeXwd_LUYMIhw1@&dP!^Fy
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Samarkand b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Samarkand
>new file mode 100644
>index 0000000000000000000000000000000000000000..10c7af7fed8b1118aeb50229697655055a02d5d5
>GIT binary patch
>literal 619
>zcmci8y-UMD7=ZCNX{)8};G%7fAMrD45sFwppp;JHP$5G=5Qk0$!Bt#@I_RW-f`i~D
>z4s~!7aTOeHcW`lW&_Nv(Eb)D+AmZd=j=Luu9Nhham9^TG{QBB;hso#Y<iBHEm*ed2
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>F#0R(bef0nU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Seoul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Seoul
>new file mode 100644
>index 0000000000000000000000000000000000000000..312ec40a112d5ab54ea2d92d735735be4b27a44d
>GIT binary patch
>literal 531
>zcmWHE%1kq2zyNGO5fBCeF(3x91sZ@v_w^4Ilb(tFxa6$<;gP@QhbP(Fe>@eI$at2-
>zT=87c=fw;Cf{GW<zhu1P52|=|{94BA_a+r@mhZ@TdtR*KUHhzz52l3`3X2maDCVV4
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>Ph^AeLaRGx;*OChWrb4=L
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Shanghai b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Shanghai
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbd132f2b0bcc8beab08e04b182751795c853127
>GIT binary patch
>literal 414
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>z93L|!ALb9D7bk4{9*EM0TpUDs5CS+32?Qb_WIzakkOCnFLJol-2uVX01tDw5!t~*5
>M#r`q2S-#n^-;pX<T>t<8
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Singapore b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Singapore
>new file mode 100644
>index 0000000000000000000000000000000000000000..78583666698a0332b822c0cd15daa58abf60eb27
>GIT binary patch
>literal 424
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Srednekolymsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Srednekolymsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..16b1cd8f9757d845a7966ae83543750bdfc79e63
>GIT binary patch
>literal 1244
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Taipei b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Taipei
>new file mode 100644
>index 0000000000000000000000000000000000000000..748873bed9a167d0226bad2246556c45432880d6
>GIT binary patch
>literal 790
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tashkent b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tashkent
>new file mode 100644
>index 0000000000000000000000000000000000000000..6f7dea4abca3b703de677eba9a88fe02436b1ad5
>GIT binary patch
>literal 635
>zcmci9Jxjwt9DwnQMy*w$i?%UU>uZ!C1fdEll1UIMbjTp$P#lzkLnkMtf~$icz#-r!
>zE(&fU_W@j-T^#D*pj`xY(D;9%1;NS13wKXA61e;ltd=*X)UT0{9VWw;$$e^1mJ@5g
>z{o=UpbvwIZPv$(8PMqb^Z}*3phgxXeTB+Xaa%f*}>+I>K?mJr1{Rc~WU}sk6wp=~9
>zmeoUrE<HT=p-0@h9<}fESjUZa%y-{;e)7j_kHv}7l~;|TNEyvdUzgeP<7#a)45j=R
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tbilisi b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tbilisi
>new file mode 100644
>index 0000000000000000000000000000000000000000..4b2d2e296e7626c26b8ee570b59d171a8f2f72a9
>GIT binary patch
>literal 1080
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tehran b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tehran
>new file mode 100644
>index 0000000000000000000000000000000000000000..3157f806b7d7fe650ec6726f31398824caf82cec
>GIT binary patch
>literal 1718
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tel_Aviv b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tel_Aviv
>new file mode 100644
>index 0000000000000000000000000000000000000000..df5119935c5b01676e63d1fb1efd7273b8b4b452
>GIT binary patch
>literal 2265
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Thimbu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Thimbu
>new file mode 100644
>index 0000000000000000000000000000000000000000..a8bddb9fa333da5c60c48132507687b2da74470a
>GIT binary patch
>literal 229
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>Aa{vGU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Thimphu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Thimphu
>new file mode 100644
>index 0000000000000000000000000000000000000000..a8bddb9fa333da5c60c48132507687b2da74470a
>GIT binary patch
>literal 229
>zcmWHE%1kq2zyQoZ5fBCe79a+(`5J)4)n}q5iiy4}>i_@$&%nsU#J~{30~BWPjR2_&
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>Aa{vGU
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tokyo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tokyo
>new file mode 100644
>index 0000000000000000000000000000000000000000..8ad44ba981a2d97d40d3de2c8bf29606be50aa4b
>GIT binary patch
>literal 318
>zcmWHE%1kq2zyK^j5fBCeP9O%cc^ZJkbvvel>u<du-1zaU;O1G~2e;W7KHOf*|KQHE
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>E0KK7P_y7O^
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tomsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Tomsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..919b0031d1cc782d9789984e00f074fb6f17c4e1
>GIT binary patch
>literal 1255
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ujung_Pandang b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ujung_Pandang
>new file mode 100644
>index 0000000000000000000000000000000000000000..3a5dcb27007e1a2ffa67bbf3a30095303b5d67a2
>GIT binary patch
>literal 288
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>RauJB8j;pvpuGF>Q0szU5Jx2fl
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ulaanbaatar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ulaanbaatar
>new file mode 100644
>index 0000000000000000000000000000000000000000..94ddfea5f2df592be9967734c16563c72e63b021
>GIT binary patch
>literal 921
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>g$W9=8f$RpdAIOfx)O&*L3jWu=B>DCB1U)TD-}#Kg!vFvP
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ulan_Bator b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ulan_Bator
>new file mode 100644
>index 0000000000000000000000000000000000000000..94ddfea5f2df592be9967734c16563c72e63b021
>GIT binary patch
>literal 921
>zcmciAJ1m1y7=YnZDiN2sBoepQT~Vc|dt3L34x~t22GU5x;0z{&Gl&WK2LodG2OAr~
>zU^EzPE`t~uEb=Ev43au;V>4Nt=JaWsHfg^13y;mt)Qexou0P>&eERY_UFoOwo7aJ~
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Urumqi b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Urumqi
>new file mode 100644
>index 0000000000000000000000000000000000000000..b44a1e19e9b1212585e55bd65be77665f4ecf6b9
>GIT binary patch
>literal 187
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>jFavQJLP#+32UrIK1JK0(AfrKC0>*RM04=i9HRA#R5AqyS
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ust-Nera b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Ust-Nera
>new file mode 100644
>index 0000000000000000000000000000000000000000..7431eb97fc4eaae4d8b4bd9449821d4d11a4b183
>GIT binary patch
>literal 1290
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Vientiane b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Vientiane
>new file mode 100644
>index 0000000000000000000000000000000000000000..8db5e8a61ee9e63164ce7f07969557fafa982dde
>GIT binary patch
>literal 220
>zcmWHE%1kq2zyQoZ5fBCe7@Ma7$XS$?ex&~Y|No3kObiThHXwN*$-=;pRKURD;~T=@
>z1jO0~<{$|m2qA1dP%qdDo*!Tx3=BZi|A%dBJp!UZ)`5iUfoujM?c}ln+Ha?8&IJIu
>C{UtE~
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Vladivostok b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Vladivostok
>new file mode 100644
>index 0000000000000000000000000000000000000000..80b170bca4100c8915a0eab6602589e22bce9ee3
>GIT binary patch
>literal 1244
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>zbSRMsOzL3KAq~cEStkh(br~J3ymSen4jRPzy`ME0b?Vq>Z12a%Dd_LD<lxY`Hu-B+
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yakutsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yakutsk
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yangon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yangon
>new file mode 100644
>index 0000000000000000000000000000000000000000..3cc2aafac4e27bcbb2de4b08c6451c1a56452808
>GIT binary patch
>literal 297
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yekaterinburg b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yekaterinburg
>new file mode 100644
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yerevan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Asia/Yerevan
>new file mode 100644
>index 0000000000000000000000000000000000000000..4c4e045bd3a47ef74883c0ec74261e8c6a41dc1a
>GIT binary patch
>literal 1213
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Azores b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Azores
>new file mode 100644
>index 0000000000000000000000000000000000000000..1895e1b1e19120123e67367e55de3f2a5dac99cb
>GIT binary patch
>literal 3493
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Bermuda b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Bermuda
>new file mode 100644
>index 0000000000000000000000000000000000000000..548d979bd1ece82ce76c18fff8a4d9a919ba531c
>GIT binary patch
>literal 2004
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Canary b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Canary
>new file mode 100644
>index 0000000000000000000000000000000000000000..544f443a096dc1edb447ff85e71d0f17e40a227e
>GIT binary patch
>literal 1911
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Cape_Verde b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Cape_Verde
>new file mode 100644
>index 0000000000000000000000000000000000000000..6bda6db7604c316edf78226eed2f785ee5f8aecd
>GIT binary patch
>literal 284
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Faeroe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Faeroe
>new file mode 100644
>index 0000000000000000000000000000000000000000..c4865186b035081c6f216f75486310e78f03c716
>GIT binary patch
>literal 1829
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Jan_Mayen b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Jan_Mayen
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Madeira b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Madeira
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Reykjavik b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Reykjavik
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/South_Georgia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/South_Georgia
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/St_Helena b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/St_Helena
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Stanley b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Atlantic/Stanley
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/ACT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/ACT
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Adelaide b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Adelaide
>new file mode 100644
>index 0000000000000000000000000000000000000000..4f331a87df4ed78be0d00b1a82b5c66c773069c9
>GIT binary patch
>literal 2238
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Brisbane b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Brisbane
>new file mode 100644
>index 0000000000000000000000000000000000000000..a327d83b7696f39c01a9b5cdff1d4f0fd4b1f94d
>GIT binary patch
>literal 452
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Broken_Hill b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Broken_Hill
>new file mode 100644
>index 0000000000000000000000000000000000000000..768b167857dd82807b5ef912be31518086c77141
>GIT binary patch
>literal 2274
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Canberra b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Canberra
>new file mode 100644
>index 0000000000000000000000000000000000000000..aaed12ca284d69e3a8ba25891701790bde7f6743
>GIT binary patch
>literal 2223
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Currie b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Currie
>new file mode 100644
>index 0000000000000000000000000000000000000000..a3f6f29a49617167750848c71e463faf6f3974fc
>GIT binary patch
>literal 2223
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Darwin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Darwin
>new file mode 100644
>index 0000000000000000000000000000000000000000..c6ae9a7ba253089d4fcdb9668b70aaad20dc94ad
>GIT binary patch
>literal 323
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Eucla b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Eucla
>new file mode 100644
>index 0000000000000000000000000000000000000000..99f07a9fe53bfa85ef4c41f90dfbae413aaf12e4
>GIT binary patch
>literal 503
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Hobart b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Hobart
>new file mode 100644
>index 0000000000000000000000000000000000000000..07784ce5d751f040ba7ab43713f32cb92ce9afb1
>GIT binary patch
>literal 2335
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/LHI b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/LHI
>new file mode 100644
>index 0000000000000000000000000000000000000000..57597b0b9743475c547021ff8cdaa0049729d0e0
>GIT binary patch
>literal 1889
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Lindeman b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Lindeman
>new file mode 100644
>index 0000000000000000000000000000000000000000..71ca143f29f2e5799b865478d05a0e88465d92f2
>GIT binary patch
>literal 522
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Lord_Howe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Lord_Howe
>new file mode 100644
>index 0000000000000000000000000000000000000000..57597b0b9743475c547021ff8cdaa0049729d0e0
>GIT binary patch
>literal 1889
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>z#byt(MPW%7TLobZ#>z=q)K<ih5fPJE^gv}@gmlp_3Hk-Gv)}uVcU^QBbPk@^IpVnx
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Melbourne b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Melbourne
>new file mode 100644
>index 0000000000000000000000000000000000000000..ec8dfe038c2d10aed29763ef8f664c8f0cd35c8c
>GIT binary patch
>literal 2223
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/NSW b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/NSW
>new file mode 100644
>index 0000000000000000000000000000000000000000..aaed12ca284d69e3a8ba25891701790bde7f6743
>GIT binary patch
>literal 2223
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/North b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/North
>new file mode 100644
>index 0000000000000000000000000000000000000000..c6ae9a7ba253089d4fcdb9668b70aaad20dc94ad
>GIT binary patch
>literal 323
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Perth b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Perth
>new file mode 100644
>index 0000000000000000000000000000000000000000..85c26d509a81d77ebfd6525b4777ed32cd6c9e1a
>GIT binary patch
>literal 479
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Queensland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Queensland
>new file mode 100644
>index 0000000000000000000000000000000000000000..a327d83b7696f39c01a9b5cdff1d4f0fd4b1f94d
>GIT binary patch
>literal 452
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/South b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/South
>new file mode 100644
>index 0000000000000000000000000000000000000000..4f331a87df4ed78be0d00b1a82b5c66c773069c9
>GIT binary patch
>literal 2238
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Sydney b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Sydney
>new file mode 100644
>index 0000000000000000000000000000000000000000..aaed12ca284d69e3a8ba25891701790bde7f6743
>GIT binary patch
>literal 2223
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Tasmania b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Tasmania
>new file mode 100644
>index 0000000000000000000000000000000000000000..07784ce5d751f040ba7ab43713f32cb92ce9afb1
>GIT binary patch
>literal 2335
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>Cm?|a!
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Victoria b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Victoria
>new file mode 100644
>index 0000000000000000000000000000000000000000..ec8dfe038c2d10aed29763ef8f664c8f0cd35c8c
>GIT binary patch
>literal 2223
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/West b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/West
>new file mode 100644
>index 0000000000000000000000000000000000000000..85c26d509a81d77ebfd6525b4777ed32cd6c9e1a
>GIT binary patch
>literal 479
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Yancowinna b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Australia/Yancowinna
>new file mode 100644
>index 0000000000000000000000000000000000000000..768b167857dd82807b5ef912be31518086c77141
>GIT binary patch
>literal 2274
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/Acre b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/Acre
>new file mode 100644
>index 0000000000000000000000000000000000000000..b612ac23562126db6b0aa3ce26dea6760c15be24
>GIT binary patch
>literal 662
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/DeNoronha b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/DeNoronha
>new file mode 100644
>index 0000000000000000000000000000000000000000..6d91f91452d0c8474f917c41add3395838504ac6
>GIT binary patch
>literal 742
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>H4#p#2M|K~x
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/East b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/East
>new file mode 100644
>index 0000000000000000000000000000000000000000..308a545ce5931939fb6353fa4273aedf00b49372
>GIT binary patch
>literal 2016
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/West b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Brazil/West
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/CET b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/CET
>new file mode 100644
>index 0000000000000000000000000000000000000000..4c4f8ef9aed8bf567ce727c33ba1b97da6f6ee7d
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/CST6CDT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/CST6CDT
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Atlantic b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Atlantic
>new file mode 100644
>index 0000000000000000000000000000000000000000..f86ece4c4032634b3526187c5f86364077b9a9b1
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Central b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Central
>new file mode 100644
>index 0000000000000000000000000000000000000000..2ffe3d8d8e012445aa961fc53b38934681dd2a2c
>GIT binary patch
>literal 2891
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Eastern b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Eastern
>new file mode 100644
>index 0000000000000000000000000000000000000000..7b4682a39e2fc97450c99eed4576d2a4614bf294
>GIT binary patch
>literal 3503
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Mountain b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Mountain
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Newfoundland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Newfoundland
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Pacific b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Pacific
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Saskatchewan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Saskatchewan
>new file mode 100644
>index 0000000000000000000000000000000000000000..5fe8d6b618e34c4c87a7eac43f7a27af41161d02
>GIT binary patch
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Yukon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Canada/Yukon
>new file mode 100644
>index 0000000000000000000000000000000000000000..6b62e2d3c39a8406cdc087b387fbdac0709f9141
>GIT binary patch
>literal 2093
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Chile/Continental b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Chile/Continental
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Chile/EasterIsland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Chile/EasterIsland
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Cuba b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Cuba
>new file mode 100644
>index 0000000000000000000000000000000000000000..1a58fcdc988ea6ec1bb660ceabe85ea19e5b0774
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EET b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EET
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EST b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EST
>new file mode 100644
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>literal 127
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EST5EDT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/EST5EDT
>new file mode 100644
>index 0000000000000000000000000000000000000000..54541fc271644e44973989a27f3846a16800caf5
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT+11 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT+11
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>new file mode 100644
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>literal 150
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-2 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-2
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-3 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-3
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-4 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-4
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-5 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-5
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-6 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-6
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-7 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-7
>new file mode 100644
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-8 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-8
>new file mode 100644
>index 0000000000000000000000000000000000000000..f74a16f98a8710c8ef291b73e1c3e66e368a6203
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>literal 149
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-9 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT-9
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT0 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/GMT0
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Greenwich b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Greenwich
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/UCT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/UCT
>new file mode 100644
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>literal 127
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/UTC b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/UTC
>new file mode 100644
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>literal 127
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Universal b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Universal
>new file mode 100644
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>literal 127
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Zulu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Etc/Zulu
>new file mode 100644
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>literal 127
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Amsterdam b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Amsterdam
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Andorra b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Andorra
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Astrakhan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Astrakhan
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Athens b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Athens
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Belfast b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Belfast
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Belgrade b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Belgrade
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Berlin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Berlin
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Bratislava b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Bratislava
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>index 0000000000000000000000000000000000000000..ba82f311b74838347de6dda464a22e95a16e0408
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Brussels b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Brussels
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Bucharest b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Bucharest
>new file mode 100644
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>GIT binary patch
>literal 2221
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Budapest b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Budapest
>new file mode 100644
>index 0000000000000000000000000000000000000000..3ddf6a528983fc02f9ec0a534756e4d6c17e0e70
>GIT binary patch
>literal 2405
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Busingen b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Busingen
>new file mode 100644
>index 0000000000000000000000000000000000000000..9c2b600b103dc4d1f49b5f087055e19d3e031129
>GIT binary patch
>literal 1918
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Chisinau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Chisinau
>new file mode 100644
>index 0000000000000000000000000000000000000000..2109b52a734c1eadbc8ffa4fbdd5e6a53fbbb60c
>GIT binary patch
>literal 2445
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Copenhagen b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Copenhagen
>new file mode 100644
>index 0000000000000000000000000000000000000000..be87cf162e1a1a8470574ae2c62b92f61589b903
>GIT binary patch
>literal 2160
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Dublin b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Dublin
>new file mode 100644
>index 0000000000000000000000000000000000000000..655daf37889fd12380c7f055f2cdd85dd4665e03
>GIT binary patch
>literal 3531
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Gibraltar b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Gibraltar
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Guernsey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Guernsey
>new file mode 100644
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Helsinki b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Helsinki
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Isle_of_Man b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Isle_of_Man
>new file mode 100644
>index 0000000000000000000000000000000000000000..4527515ca3f249a44599be855b3e12800ebe480d
>GIT binary patch
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Istanbul b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Istanbul
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Jersey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Jersey
>new file mode 100644
>index 0000000000000000000000000000000000000000..4527515ca3f249a44599be855b3e12800ebe480d
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kaliningrad b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kaliningrad
>new file mode 100644
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kiev b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kiev
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>index 0000000000000000000000000000000000000000..b3e20a7e3946dd522e50db39a81c0e5f4f1bd619
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kirov b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Kirov
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Lisbon b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Lisbon
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Ljubljana b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Ljubljana
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/London b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/London
>new file mode 100644
>index 0000000000000000000000000000000000000000..4527515ca3f249a44599be855b3e12800ebe480d
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Luxembourg b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Luxembourg
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Madrid b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Madrid
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Malta b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Malta
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Mariehamn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Mariehamn
>new file mode 100644
>index 0000000000000000000000000000000000000000..29b3c817f4637e98623c5f76a6078f18157b5cfe
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Minsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Minsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..60041a41890eae1902b2410f1225a38cc7614a13
>GIT binary patch
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Monaco b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Monaco
>new file mode 100644
>index 0000000000000000000000000000000000000000..0b40f1ec9321e0b521a0d36a8e6ca9a9de08282f
>GIT binary patch
>literal 2953
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Moscow b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Moscow
>new file mode 100644
>index 0000000000000000000000000000000000000000..906bd05f344ae9a806c1b20b8e2bfd7061d35fa1
>GIT binary patch
>literal 1544
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Nicosia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Nicosia
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e663b215327d8899a4b3fbe4623f066630b97b2
>GIT binary patch
>literal 2016
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Oslo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Oslo
>new file mode 100644
>index 0000000000000000000000000000000000000000..239c0174d361ff520c0c39431f2158837b82c6e0
>GIT binary patch
>literal 2251
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Paris b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Paris
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf6e2e2ee95355039a90146a7f77d14224551b65
>GIT binary patch
>literal 2971
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Podgorica b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Podgorica
>new file mode 100644
>index 0000000000000000000000000000000000000000..79c25d70ef09aaeec21f0a10a029650967172a80
>GIT binary patch
>literal 1957
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Prague b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Prague
>new file mode 100644
>index 0000000000000000000000000000000000000000..ba82f311b74838347de6dda464a22e95a16e0408
>GIT binary patch
>literal 2338
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Riga b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Riga
>new file mode 100644
>index 0000000000000000000000000000000000000000..b729ee8c2ee26c7bd74535ead106e8160afdf181
>GIT binary patch
>literal 2235
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Rome b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Rome
>new file mode 100644
>index 0000000000000000000000000000000000000000..bdd3449e76a51eb8ea7693fbc1ebeb5be5c1e5b9
>GIT binary patch
>literal 2692
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Samara b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Samara
>new file mode 100644
>index 0000000000000000000000000000000000000000..0539acfd78ae58d4503ea88c2027c4b489a207e8
>GIT binary patch
>literal 1253
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/San_Marino b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/San_Marino
>new file mode 100644
>index 0000000000000000000000000000000000000000..bdd3449e76a51eb8ea7693fbc1ebeb5be5c1e5b9
>GIT binary patch
>literal 2692
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Sarajevo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Sarajevo
>new file mode 100644
>index 0000000000000000000000000000000000000000..79c25d70ef09aaeec21f0a10a029650967172a80
>GIT binary patch
>literal 1957
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Saratov b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Saratov
>new file mode 100644
>index 0000000000000000000000000000000000000000..e8cd6b10efe42e43315c12b28d87cb69bbb0c8aa
>GIT binary patch
>literal 1197
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Simferopol b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Simferopol
>new file mode 100644
>index 0000000000000000000000000000000000000000..f3b42b004dcc2af1d69949ff18f35fdfa4cf6088
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>literal 1490
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Skopje b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Skopje
>new file mode 100644
>index 0000000000000000000000000000000000000000..79c25d70ef09aaeec21f0a10a029650967172a80
>GIT binary patch
>literal 1957
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Sofia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Sofia
>new file mode 100644
>index 0000000000000000000000000000000000000000..763e074795b3c7143984c9b334bd6f2f5a50445d
>GIT binary patch
>literal 2130
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Stockholm b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Stockholm
>new file mode 100644
>index 0000000000000000000000000000000000000000..43c7f2e23f3c37c24d39e78f8822b12c5a74b5eb
>GIT binary patch
>literal 1918
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tallinn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tallinn
>new file mode 100644
>index 0000000000000000000000000000000000000000..18f903fa6fd864237a679dd06c6a55eecce89d98
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tirane b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tirane
>new file mode 100644
>index 0000000000000000000000000000000000000000..52c16a42bf1ab1b5db5c1e3d4b808ab37384ad18
>GIT binary patch
>literal 2098
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tiraspol b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Tiraspol
>new file mode 100644
>index 0000000000000000000000000000000000000000..2109b52a734c1eadbc8ffa4fbdd5e6a53fbbb60c
>GIT binary patch
>literal 2445
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Ulyanovsk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Ulyanovsk
>new file mode 100644
>index 0000000000000000000000000000000000000000..c280f430fad27873cf7b20af55bf47c816ea1190
>GIT binary patch
>literal 1281
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Uzhgorod b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Uzhgorod
>new file mode 100644
>index 0000000000000000000000000000000000000000..8ddba9097f804a762815a54e47708bf6bfb5814f
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vaduz b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vaduz
>new file mode 100644
>index 0000000000000000000000000000000000000000..9c2b600b103dc4d1f49b5f087055e19d3e031129
>GIT binary patch
>literal 1918
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vatican b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vatican
>new file mode 100644
>index 0000000000000000000000000000000000000000..bdd3449e76a51eb8ea7693fbc1ebeb5be5c1e5b9
>GIT binary patch
>literal 2692
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vienna b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vienna
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vilnius b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Vilnius
>new file mode 100644
>index 0000000000000000000000000000000000000000..da380af0ed2f4f6eb399ab4a3bf3a0d9b6a7ebc0
>GIT binary patch
>literal 2199
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Volgograd b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Volgograd
>new file mode 100644
>index 0000000000000000000000000000000000000000..f4cb64f16c730b1da6fe427a786ae939712559d5
>GIT binary patch
>literal 1167
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Warsaw b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Warsaw
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>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zagreb b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zagreb
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zaporozhye b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zaporozhye
>new file mode 100644
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>GIT binary patch
>literal 2115
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zurich b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Europe/Zurich
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Factory b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Factory
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GB b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GB
>new file mode 100644
>index 0000000000000000000000000000000000000000..4527515ca3f249a44599be855b3e12800ebe480d
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GB-Eire b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GB-Eire
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>index 0000000000000000000000000000000000000000..4527515ca3f249a44599be855b3e12800ebe480d
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT
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>literal 127
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT+0 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT+0
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT-0 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT-0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT0 b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/GMT0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Greenwich b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Greenwich
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/HST b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/HST
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Hongkong b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Hongkong
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Iceland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Iceland
>new file mode 100644
>index 0000000000000000000000000000000000000000..dc49c32470906fb2ff94fc599c73141597443f98
>GIT binary patch
>literal 1188
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Antananarivo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Antananarivo
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Chagos b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Chagos
>new file mode 100644
>index 0000000000000000000000000000000000000000..0e5e7192795decc47a8d338520ce12197ae1cd31
>GIT binary patch
>literal 225
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Christmas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Christmas
>new file mode 100644
>index 0000000000000000000000000000000000000000..066c1e9fa6e0f6aa4121fe0f2378512523cd5fbd
>GIT binary patch
>literal 182
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Cocos b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Cocos
>new file mode 100644
>index 0000000000000000000000000000000000000000..34a2457bef2a41129dccb62f4320ad66a52f64da
>GIT binary patch
>literal 191
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Comoro b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Comoro
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Kerguelen b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Kerguelen
>new file mode 100644
>index 0000000000000000000000000000000000000000..e7d4d3d0660ed68ccf7a9fbe6cc0b41eea23dde5
>GIT binary patch
>literal 187
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mahe b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mahe
>new file mode 100644
>index 0000000000000000000000000000000000000000..db8ac687561c40e85c29806b30966d0d7f7d8076
>GIT binary patch
>literal 187
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Maldives b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Maldives
>new file mode 100644
>index 0000000000000000000000000000000000000000..3f1a76e55bc1a7445d9dc2df31be87d6b35b4f74
>GIT binary patch
>literal 220
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mauritius b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mauritius
>new file mode 100644
>index 0000000000000000000000000000000000000000..fd8d911129bc22fe5a1d1ff93e30a070d3452d84
>GIT binary patch
>literal 267
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mayotte b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Mayotte
>new file mode 100644
>index 0000000000000000000000000000000000000000..39631f21486c61a19639d73d7571ef0840176b3e
>GIT binary patch
>literal 285
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Reunion b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Indian/Reunion
>new file mode 100644
>index 0000000000000000000000000000000000000000..d5f9aa49d5e0f99abbb104072db7c781137365c4
>GIT binary patch
>literal 187
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Iran b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Iran
>new file mode 100644
>index 0000000000000000000000000000000000000000..3157f806b7d7fe650ec6726f31398824caf82cec
>GIT binary patch
>literal 1718
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Israel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Israel
>new file mode 100644
>index 0000000000000000000000000000000000000000..df5119935c5b01676e63d1fb1efd7273b8b4b452
>GIT binary patch
>literal 2265
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Jamaica b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Jamaica
>new file mode 100644
>index 0000000000000000000000000000000000000000..7aedd262a57f096cda47a8542b3b66633561641d
>GIT binary patch
>literal 507
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Japan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Japan
>new file mode 100644
>index 0000000000000000000000000000000000000000..8ad44ba981a2d97d40d3de2c8bf29606be50aa4b
>GIT binary patch
>literal 318
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Kwajalein b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Kwajalein
>new file mode 100644
>index 0000000000000000000000000000000000000000..1a27122ee09410095d433adabe6bf2eb772710d0
>GIT binary patch
>literal 259
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Libya b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Libya
>new file mode 100644
>index 0000000000000000000000000000000000000000..b32e2202f572b8ca6ef3c5cf1d9e787a24f2c328
>GIT binary patch
>literal 655
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MET b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MET
>new file mode 100644
>index 0000000000000000000000000000000000000000..71963d533e444362250dec5465ec58517ab6c09d
>GIT binary patch
>literal 2102
>zcmdVaUrd#C9LMoP#7buLMT0{EViKZt<UgbasT~i@<WS1VNF_87wTR+G3`%1ab55E2
>z)L70TX~mc|J9UAzhSvH!T1Zx74a>FV%Kpu{nX^A*^?N^8ZC!O&zq4nrXXm+jE}qXj
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MST b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MST
>new file mode 100644
>index 0000000000000000000000000000000000000000..a1bee7c6f0b76b6b03373eba880f52e8e83471ac
>GIT binary patch
>literal 127
>zcmWHE%1kq2zyORu5fFv}5S!)y|G5(w7<_|6fSeG*`e0_T{D7H)YycO~9CI!J^w$mJ
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MST7MDT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/MST7MDT
>new file mode 100644
>index 0000000000000000000000000000000000000000..726a7e57176567044d585800c37cbc917b441d22
>GIT binary patch
>literal 2294
>zcmdtidrZ}39LMo5NFgUKPZtaU&9o#45Kt0MW>nA#=>*{s&<LYIcC-R7owN|2f@1v9
>zd{)LRlc1ZmW?t89Y^ZCvwz9e7*0dIOzgRZ9Y_YhUp7--_fAwGM%bxT4jsHLIz^dSy
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>BL=yl2
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaNorte b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaNorte
>new file mode 100644
>index 0000000000000000000000000000000000000000..29c83e71ffa6b071c52b2360295bf55009c09b76
>GIT binary patch
>literal 2356
>zcmdtiZ%oxy9LMnsp(Ki)RFwE*C#4t&SN@A){}j7|+(5aKn2{NO24#>CO3@7+TWihn
>zMJMGdIyrm5S`o9z{xNdPtu<C*E6m22DKLy8){4q;JMUi)d(^Ym@9vz}-QDi)?t{<U
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>d|NnA_*{o;VtS5QX-D&QWByVb}JJp>M_7|antVjR=
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaSur b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/BajaSur
>new file mode 100644
>index 0000000000000000000000000000000000000000..afa94c2ac5c1679d39143eae062b812070876492
>GIT binary patch
>literal 1564
>zcmdUuYiLhl9LIlSF0GZvatV=8qP3gNm>Ih;V}G;lj~TZAhX0IRZM0$AQ=|xcrbM}x
>z2uqXfl1q6dmk?UHq$JsrvZiH7$MZRq7hZYch41M(pVO&xUVT2^++u%}{IS9I4Tt5~
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/General b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Mexico/General
>new file mode 100644
>index 0000000000000000000000000000000000000000..f11e3d2d66a2d7c21f498df96c3fd1db3a0d8817
>GIT binary patch
>literal 1618
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/NZ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/NZ
>new file mode 100644
>index 0000000000000000000000000000000000000000..a5f5b6d5e60f15ebdbb747228006e8fe06dd4a01
>GIT binary patch
>literal 2460
>zcmd_rdrXye9LMqJpwhVKWemws!@O`gTvUW2LIninl6fQ~qi>S%pdpkbbb(AGa|~<R
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>QGddz`jx)v?9W~qgPuMCAVE_OC
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/NZ-CHAT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/NZ-CHAT
>new file mode 100644
>index 0000000000000000000000000000000000000000..957c80b79a30f38d7db99fc06b16c3255ccc50e7
>GIT binary patch
>literal 2087
>zcmdVaS!`5g7>Dt1Dv)%#0g|Q^DEroFr=96Si*+o}mKHixrHoKZd1aYt!2&|1b)l>U
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Navajo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Navajo
>new file mode 100644
>index 0000000000000000000000000000000000000000..7fc669171f88e8e1fb0c1483bb83e746e5f1c779
>GIT binary patch
>literal 2453
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/PRC b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/PRC
>new file mode 100644
>index 0000000000000000000000000000000000000000..dbd132f2b0bcc8beab08e04b182751795c853127
>GIT binary patch
>literal 414
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/PST8PDT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/PST8PDT
>new file mode 100644
>index 0000000000000000000000000000000000000000..6242ac04c09fd4e4952cd16503e954dcbdacec2e
>GIT binary patch
>literal 2294
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Apia b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Apia
>new file mode 100644
>index 0000000000000000000000000000000000000000..4091a85f388b57df98ff9ab056958e41c7d00fd4
>GIT binary patch
>literal 1134
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Auckland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Auckland
>new file mode 100644
>index 0000000000000000000000000000000000000000..a5f5b6d5e60f15ebdbb747228006e8fe06dd4a01
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Bougainville b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Bougainville
>new file mode 100644
>index 0000000000000000000000000000000000000000..dc5a7d73ccc59f704ec3bb12fc9065621bb66276
>GIT binary patch
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chatham b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chatham
>new file mode 100644
>index 0000000000000000000000000000000000000000..957c80b79a30f38d7db99fc06b16c3255ccc50e7
>GIT binary patch
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>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chuuk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Chuuk
>new file mode 100644
>index 0000000000000000000000000000000000000000..289b795a8a8bcb6632ca97efc363267d2d491c09
>GIT binary patch
>literal 183
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Easter b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Easter
>new file mode 100644
>index 0000000000000000000000000000000000000000..060bef81898b9b45492ce2e2e35fb218f5cc213a
>GIT binary patch
>literal 2242
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Efate b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Efate
>new file mode 100644
>index 0000000000000000000000000000000000000000..5cee55df32f377df2dbde0d9764df5db388434a1
>GIT binary patch
>literal 492
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Enderbury b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Enderbury
>new file mode 100644
>index 0000000000000000000000000000000000000000..a3f30e5c7b9166d408a0851bfac437293c72b0cf
>GIT binary patch
>literal 259
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fakaofo b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fakaofo
>new file mode 100644
>index 0000000000000000000000000000000000000000..6e4b8afdbddeb1ff2ba52168af01a9c8a7896208
>GIT binary patch
>literal 221
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fiji b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Fiji
>new file mode 100644
>index 0000000000000000000000000000000000000000..912db189431adbc130b6397e317dd40733601fae
>GIT binary patch
>literal 1104
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Funafuti b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Funafuti
>new file mode 100644
>index 0000000000000000000000000000000000000000..3289094a2740500bc374d20904a70d7b307c2264
>GIT binary patch
>literal 183
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Galapagos b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Galapagos
>new file mode 100644
>index 0000000000000000000000000000000000000000..76b2b3a126967bd410e57ce36cccebf7db167f67
>GIT binary patch
>literal 268
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Gambier b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Gambier
>new file mode 100644
>index 0000000000000000000000000000000000000000..625016d512b09d296dc340dd542a3d2d07c5c9ea
>GIT binary patch
>literal 186
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guadalcanal b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guadalcanal
>new file mode 100644
>index 0000000000000000000000000000000000000000..0c24095bf0f683d1e1c51fd30e294de40b3b3e5a
>GIT binary patch
>literal 188
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>k&=ACB2qD49A7C8}3_uhAgNz1o2^i011GLCa*U*p)092eEfdBvi
>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guam b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Guam
>new file mode 100644
>index 0000000000000000000000000000000000000000..4286e6bac870c1ff15c73b8958c15210a3879c58
>GIT binary patch
>literal 225
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Honolulu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Honolulu
>new file mode 100644
>index 0000000000000000000000000000000000000000..bd855772054f8d41e0158e71c2bf2c04e50e47cc
>GIT binary patch
>literal 276
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Johnston b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Johnston
>new file mode 100644
>index 0000000000000000000000000000000000000000..bd855772054f8d41e0158e71c2bf2c04e50e47cc
>GIT binary patch
>literal 276
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kiritimati b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kiritimati
>new file mode 100644
>index 0000000000000000000000000000000000000000..762275d3c1d28a472dda088be5b602336e38e84d
>GIT binary patch
>literal 263
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kosrae b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kosrae
>new file mode 100644
>index 0000000000000000000000000000000000000000..f8222e66b554dc2e5e05be129662da3f8902280d
>GIT binary patch
>literal 251
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kwajalein b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Kwajalein
>new file mode 100644
>index 0000000000000000000000000000000000000000..1a27122ee09410095d433adabe6bf2eb772710d0
>GIT binary patch
>literal 259
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Majuro b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Majuro
>new file mode 100644
>index 0000000000000000000000000000000000000000..b3a8c184432efbe040cd44a386a99c2cb58ddf52
>GIT binary patch
>literal 221
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>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Marquesas b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Marquesas
>new file mode 100644
>index 0000000000000000000000000000000000000000..10c5c9bc1dd5807c7bd13e556a4644c5f07ef261
>GIT binary patch
>literal 195
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Midway b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Midway
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e38e97c97ddf5e054fba822cfce1c5ccd422e3f
>GIT binary patch
>literal 196
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Nauru b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Nauru
>new file mode 100644
>index 0000000000000000000000000000000000000000..6092119f66ca00e75e8ead98c286470d7c192fd4
>GIT binary patch
>literal 282
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>
>literal 0
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Niue b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Niue
>new file mode 100644
>index 0000000000000000000000000000000000000000..df6110dd108e529d2425752744d6d2a4512a84f7
>GIT binary patch
>literal 266
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Norfolk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Norfolk
>new file mode 100644
>index 0000000000000000000000000000000000000000..d0b9607ed73a9a4bd6ca6b49a2b685609d561f96
>GIT binary patch
>literal 323
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>
>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pago_Pago b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pago_Pago
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Palau b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Palau
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pitcairn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pitcairn
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pohnpei b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Pohnpei
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Ponape b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Ponape
>new file mode 100644
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>literal 183
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Port_Moresby b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Port_Moresby
>new file mode 100644
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>GIT binary patch
>literal 206
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Rarotonga b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Rarotonga
>new file mode 100644
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>GIT binary patch
>literal 602
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Saipan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Saipan
>new file mode 100644
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>literal 225
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Samoa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Samoa
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e38e97c97ddf5e054fba822cfce1c5ccd422e3f
>GIT binary patch
>literal 196
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tahiti b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tahiti
>new file mode 100644
>index 0000000000000000000000000000000000000000..7867d8bd6c27774ad5a3b6f91fdfcec18845b7e1
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>literal 187
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tarawa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tarawa
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tongatapu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tongatapu
>new file mode 100644
>index 0000000000000000000000000000000000000000..b3a5a89b66d2b74971646be2fea8066d4dd91fab
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>literal 393
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Truk b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Truk
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>literal 183
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wake b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wake
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wallis b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wallis
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Yap b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Yap
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Poland b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Poland
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Portugal b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Portugal
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/ROC b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/ROC
>new file mode 100644
>index 0000000000000000000000000000000000000000..748873bed9a167d0226bad2246556c45432880d6
>GIT binary patch
>literal 790
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/ROK b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/ROK
>new file mode 100644
>index 0000000000000000000000000000000000000000..312ec40a112d5ab54ea2d92d735735be4b27a44d
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>literal 531
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Singapore b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Singapore
>new file mode 100644
>index 0000000000000000000000000000000000000000..78583666698a0332b822c0cd15daa58abf60eb27
>GIT binary patch
>literal 424
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Turkey b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Turkey
>new file mode 100644
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/UCT b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/UCT
>new file mode 100644
>index 0000000000000000000000000000000000000000..40147b9e8349c50b9b5459d34a8bf683c91b182f
>GIT binary patch
>literal 127
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Alaska b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Alaska
>new file mode 100644
>index 0000000000000000000000000000000000000000..6c8bdf226900d7f4c6a4d47338e6742d4d6747cd
>GIT binary patch
>literal 2380
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Aleutian b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Aleutian
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>index 0000000000000000000000000000000000000000..5696e0f8bedee72515c43f686881a561af339db9
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Arizona b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Arizona
>new file mode 100644
>index 0000000000000000000000000000000000000000..adf28236a2feb68f177f5b002ea068db59eea997
>GIT binary patch
>literal 353
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Central b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Central
>new file mode 100644
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>literal 3585
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/East-Indiana b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/East-Indiana
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Eastern b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Eastern
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Hawaii
>new file mode 100644
>index 0000000000000000000000000000000000000000..bd855772054f8d41e0158e71c2bf2c04e50e47cc
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Indiana-Starke
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Michigan
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Mountain
>new file mode 100644
>index 0000000000000000000000000000000000000000..7fc669171f88e8e1fb0c1483bb83e746e5f1c779
>GIT binary patch
>literal 2453
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>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Pacific
>new file mode 100644
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa
>new file mode 100644
>index 0000000000000000000000000000000000000000..3e38e97c97ddf5e054fba822cfce1c5ccd422e3f
>GIT binary patch
>literal 196
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/UTC b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/UTC
>new file mode 100644
>index 0000000000000000000000000000000000000000..c3b97f1a199421d6d9625b280316d99b85a4a4e8
>GIT binary patch
>literal 127
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Universal b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Universal
>new file mode 100644
>index 0000000000000000000000000000000000000000..c3b97f1a199421d6d9625b280316d99b85a4a4e8
>GIT binary patch
>literal 127
>ucmWHE%1kq2zyORu5fFv}5Ss<U2@P=uGC~OJgPFnd17-@c0bD?H47dQg2nTKe
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/W-SU b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/W-SU
>new file mode 100644
>index 0000000000000000000000000000000000000000..906bd05f344ae9a806c1b20b8e2bfd7061d35fa1
>GIT binary patch
>literal 1544
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>literal 0
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>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/WET b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/WET
>new file mode 100644
>index 0000000000000000000000000000000000000000..444a1933d72525ab3045980eab2fbf79266cf158
>GIT binary patch
>literal 1873
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>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Zulu b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/Zulu
>new file mode 100644
>index 0000000000000000000000000000000000000000..c3b97f1a199421d6d9625b280316d99b85a4a4e8
>GIT binary patch
>literal 127
>ucmWHE%1kq2zyORu5fFv}5Ss<U2@P=uGC~OJgPFnd17-@c0bD?H47dQg2nTKe
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab
>new file mode 100644
>index 0000000000000000000000000000000000000000..c2e0f8eafc016206bb10d34bca365c5abdf3daac
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab
>@@ -0,0 +1,274 @@
>+# ISO 3166 alpha-2 country codes
>+#
>+# This file is in the public domain, so clarified as of
>+# 2009-05-17 by Arthur David Olson.
>+#
>+# From Paul Eggert (2015-05-02):
>+# This file contains a table of two-letter country codes.  Columns are
>+# separated by a single tab.  Lines beginning with '#' are comments.
>+# All text uses UTF-8 encoding.  The columns of the table are as follows:
>+#
>+# 1.  ISO 3166-1 alpha-2 country code, current as of
>+#     ISO 3166-1 N905 (2016-11-15).  See: Updates on ISO 3166-1
>+#     http://isotc.iso.org/livelink/livelink/Open/16944257
>+# 2.  The usual English name for the coded region,
>+#     chosen so that alphabetic sorting of subsets produces helpful lists.
>+#     This is not the same as the English name in the ISO 3166 tables.
>+#
>+# The table is sorted by country code.
>+#
>+# This table is intended as an aid for users, to help them select time
>+# zone data appropriate for their practical needs.  It is not intended
>+# to take or endorse any position on legal or territorial claims.
>+#
>+#country-
>+#code	name of country, territory, area, or subdivision
>+AD	Andorra
>+AE	United Arab Emirates
>+AF	Afghanistan
>+AG	Antigua & Barbuda
>+AI	Anguilla
>+AL	Albania
>+AM	Armenia
>+AO	Angola
>+AQ	Antarctica
>+AR	Argentina
>+AS	Samoa (American)
>+AT	Austria
>+AU	Australia
>+AW	Aruba
>+AX	Ãland Islands
>+AZ	Azerbaijan
>+BA	Bosnia & Herzegovina
>+BB	Barbados
>+BD	Bangladesh
>+BE	Belgium
>+BF	Burkina Faso
>+BG	Bulgaria
>+BH	Bahrain
>+BI	Burundi
>+BJ	Benin
>+BL	St Barthelemy
>+BM	Bermuda
>+BN	Brunei
>+BO	Bolivia
>+BQ	Caribbean NL
>+BR	Brazil
>+BS	Bahamas
>+BT	Bhutan
>+BV	Bouvet Island
>+BW	Botswana
>+BY	Belarus
>+BZ	Belize
>+CA	Canada
>+CC	Cocos (Keeling) Islands
>+CD	Congo (Dem. Rep.)
>+CF	Central African Rep.
>+CG	Congo (Rep.)
>+CH	Switzerland
>+CI	CÃ´te d'Ivoire
>+CK	Cook Islands
>+CL	Chile
>+CM	Cameroon
>+CN	China
>+CO	Colombia
>+CR	Costa Rica
>+CU	Cuba
>+CV	Cape Verde
>+CW	CuraÃ§ao
>+CX	Christmas Island
>+CY	Cyprus
>+CZ	Czech Republic
>+DE	Germany
>+DJ	Djibouti
>+DK	Denmark
>+DM	Dominica
>+DO	Dominican Republic
>+DZ	Algeria
>+EC	Ecuador
>+EE	Estonia
>+EG	Egypt
>+EH	Western Sahara
>+ER	Eritrea
>+ES	Spain
>+ET	Ethiopia
>+FI	Finland
>+FJ	Fiji
>+FK	Falkland Islands
>+FM	Micronesia
>+FO	Faroe Islands
>+FR	France
>+GA	Gabon
>+GB	Britain (UK)
>+GD	Grenada
>+GE	Georgia
>+GF	French Guiana
>+GG	Guernsey
>+GH	Ghana
>+GI	Gibraltar
>+GL	Greenland
>+GM	Gambia
>+GN	Guinea
>+GP	Guadeloupe
>+GQ	Equatorial Guinea
>+GR	Greece
>+GS	South Georgia & the South Sandwich Islands
>+GT	Guatemala
>+GU	Guam
>+GW	Guinea-Bissau
>+GY	Guyana
>+HK	Hong Kong
>+HM	Heard Island & McDonald Islands
>+HN	Honduras
>+HR	Croatia
>+HT	Haiti
>+HU	Hungary
>+ID	Indonesia
>+IE	Ireland
>+IL	Israel
>+IM	Isle of Man
>+IN	India
>+IO	British Indian Ocean Territory
>+IQ	Iraq
>+IR	Iran
>+IS	Iceland
>+IT	Italy
>+JE	Jersey
>+JM	Jamaica
>+JO	Jordan
>+JP	Japan
>+KE	Kenya
>+KG	Kyrgyzstan
>+KH	Cambodia
>+KI	Kiribati
>+KM	Comoros
>+KN	St Kitts & Nevis
>+KP	Korea (North)
>+KR	Korea (South)
>+KW	Kuwait
>+KY	Cayman Islands
>+KZ	Kazakhstan
>+LA	Laos
>+LB	Lebanon
>+LC	St Lucia
>+LI	Liechtenstein
>+LK	Sri Lanka
>+LR	Liberia
>+LS	Lesotho
>+LT	Lithuania
>+LU	Luxembourg
>+LV	Latvia
>+LY	Libya
>+MA	Morocco
>+MC	Monaco
>+MD	Moldova
>+ME	Montenegro
>+MF	St Martin (French)
>+MG	Madagascar
>+MH	Marshall Islands
>+MK	Macedonia
>+ML	Mali
>+MM	Myanmar (Burma)
>+MN	Mongolia
>+MO	Macau
>+MP	Northern Mariana Islands
>+MQ	Martinique
>+MR	Mauritania
>+MS	Montserrat
>+MT	Malta
>+MU	Mauritius
>+MV	Maldives
>+MW	Malawi
>+MX	Mexico
>+MY	Malaysia
>+MZ	Mozambique
>+NA	Namibia
>+NC	New Caledonia
>+NE	Niger
>+NF	Norfolk Island
>+NG	Nigeria
>+NI	Nicaragua
>+NL	Netherlands
>+NO	Norway
>+NP	Nepal
>+NR	Nauru
>+NU	Niue
>+NZ	New Zealand
>+OM	Oman
>+PA	Panama
>+PE	Peru
>+PF	French Polynesia
>+PG	Papua New Guinea
>+PH	Philippines
>+PK	Pakistan
>+PL	Poland
>+PM	St Pierre & Miquelon
>+PN	Pitcairn
>+PR	Puerto Rico
>+PS	Palestine
>+PT	Portugal
>+PW	Palau
>+PY	Paraguay
>+QA	Qatar
>+RE	RÃ©union
>+RO	Romania
>+RS	Serbia
>+RU	Russia
>+RW	Rwanda
>+SA	Saudi Arabia
>+SB	Solomon Islands
>+SC	Seychelles
>+SD	Sudan
>+SE	Sweden
>+SG	Singapore
>+SH	St Helena
>+SI	Slovenia
>+SJ	Svalbard & Jan Mayen
>+SK	Slovakia
>+SL	Sierra Leone
>+SM	San Marino
>+SN	Senegal
>+SO	Somalia
>+SR	Suriname
>+SS	South Sudan
>+ST	Sao Tome & Principe
>+SV	El Salvador
>+SX	St Maarten (Dutch)
>+SY	Syria
>+SZ	Swaziland
>+TC	Turks & Caicos Is
>+TD	Chad
>+TF	French Southern & Antarctic Lands
>+TG	Togo
>+TH	Thailand
>+TJ	Tajikistan
>+TK	Tokelau
>+TL	East Timor
>+TM	Turkmenistan
>+TN	Tunisia
>+TO	Tonga
>+TR	Turkey
>+TT	Trinidad & Tobago
>+TV	Tuvalu
>+TW	Taiwan
>+TZ	Tanzania
>+UA	Ukraine
>+UG	Uganda
>+UM	US minor outlying islands
>+US	United States
>+UY	Uruguay
>+UZ	Uzbekistan
>+VA	Vatican City
>+VC	St Vincent
>+VE	Venezuela
>+VG	Virgin Islands (UK)
>+VI	Virgin Islands (US)
>+VN	Vietnam
>+VU	Vanuatu
>+WF	Wallis & Futuna
>+WS	Samoa (western)
>+YE	Yemen
>+YT	Mayotte
>+ZA	South Africa
>+ZM	Zambia
>+ZW	Zimbabwe
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/localtime b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/localtime
>new file mode 100644
>index 0000000000000000000000000000000000000000..afeeb88d062851fca5523d23a73edaa1d8f5ff6c
>GIT binary patch
>literal 148
>zcmWHE%1kq2zyORu5fBCeCLji}SsH*u{r~^}ffN|%8W;fS5E4xI0o4hjFiqmJ0h(xM
>Gzy$!q_YOt?
>
>literal 0
>HcmV?d00001
>
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
>new file mode 100644
>index 0000000000000000000000000000000000000000..2d90ed72f1c647da6e97ac0f70315baa5c8e2b0b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
>@@ -0,0 +1,382 @@
>+# tz zone descriptions
>+#
>+# This file is in the public domain.
>+#
>+# From Paul Eggert (2017-10-01):
>+# This file contains a table where each row stands for a zone where
>+# civil time stamps have agreed since 1970.  Columns are separated by
>+# a single tab.  Lines beginning with '#' are comments.  All text uses
>+# UTF-8 encoding.  The columns of the table are as follows:
>+#
>+# 1.  The countries that overlap the zone, as a comma-separated list
>+#     of ISO 3166 2-character country codes.  See the file 'iso3166.tab'.
>+# 2.  Latitude and longitude of the zone's principal location
>+#     in ISO 6709 sign-degrees-minutes-seconds format,
>+#     either Â±DDMMÂ±DDDMM or Â±DDMMSSÂ±DDDMMSS,
>+#     first latitude (+ is north), then longitude (+ is east).
>+# 3.  Zone name used in value of TZ environment variable.
>+#     Please see the theory.html file for how zone names are chosen.
>+#     If multiple zones overlap a country, each has a row in the
>+#     table, with each column 1 containing the country code.
>+# 4.  Comments; present if and only if a country has multiple zones.
>+#
>+# If a zone covers multiple countries, the most-populous city is used,
>+# and that country is listed first in column 1; any other countries
>+# are listed alphabetically by country code.  The table is sorted
>+# first by country code, then (if possible) by an order within the
>+# country that (1) makes some geographical sense, and (2) puts the
>+# most populous zones first, where that does not contradict (1).
>+#
>+# This table is intended as an aid for users, to help them select time
>+# zone data entries appropriate for their practical needs.  It is not
>+# intended to take or endorse any position on legal or territorial claims.
>+#
>+#country-
>+#codes	coordinates	TZ	comments
>+AD	+4230+00131	Europe/Andorra
>+AE,OM	+2518+05518	Asia/Dubai
>+AF	+3431+06912	Asia/Kabul
>+AL	+4120+01950	Europe/Tirane
>+AM	+4011+04430	Asia/Yerevan
>+AQ	-6617+11031	Antarctica/Casey	Casey
>+AQ	-6835+07758	Antarctica/Davis	Davis
>+AQ	-6640+14001	Antarctica/DumontDUrville	Dumont-d'Urville
>+AQ	-6736+06253	Antarctica/Mawson	Mawson
>+AQ	-6448-06406	Antarctica/Palmer	Palmer
>+AQ	-6734-06808	Antarctica/Rothera	Rothera
>+AQ	-690022+0393524	Antarctica/Syowa	Syowa
>+AQ	-720041+0023206	Antarctica/Troll	Troll
>+AQ	-7824+10654	Antarctica/Vostok	Vostok
>+AR	-3436-05827	America/Argentina/Buenos_Aires	Buenos Aires (BA, CF)
>+AR	-3124-06411	America/Argentina/Cordoba	Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF)
>+AR	-2447-06525	America/Argentina/Salta	Salta (SA, LP, NQ, RN)
>+AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
>+AR	-2649-06513	America/Argentina/Tucuman	TucumÃ¡n (TM)
>+AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT); Chubut (CH)
>+AR	-2926-06651	America/Argentina/La_Rioja	La Rioja (LR)
>+AR	-3132-06831	America/Argentina/San_Juan	San Juan (SJ)
>+AR	-3253-06849	America/Argentina/Mendoza	Mendoza (MZ)
>+AR	-3319-06621	America/Argentina/San_Luis	San Luis (SL)
>+AR	-5138-06913	America/Argentina/Rio_Gallegos	Santa Cruz (SC)
>+AR	-5448-06818	America/Argentina/Ushuaia	Tierra del Fuego (TF)
>+AS,UM	-1416-17042	Pacific/Pago_Pago	Samoa, Midway
>+AT	+4813+01620	Europe/Vienna
>+AU	-3133+15905	Australia/Lord_Howe	Lord Howe Island
>+AU	-5430+15857	Antarctica/Macquarie	Macquarie Island
>+AU	-4253+14719	Australia/Hobart	Tasmania (most areas)
>+AU	-3956+14352	Australia/Currie	Tasmania (King Island)
>+AU	-3749+14458	Australia/Melbourne	Victoria
>+AU	-3352+15113	Australia/Sydney	New South Wales (most areas)
>+AU	-3157+14127	Australia/Broken_Hill	New South Wales (Yancowinna)
>+AU	-2728+15302	Australia/Brisbane	Queensland (most areas)
>+AU	-2016+14900	Australia/Lindeman	Queensland (Whitsunday Islands)
>+AU	-3455+13835	Australia/Adelaide	South Australia
>+AU	-1228+13050	Australia/Darwin	Northern Territory
>+AU	-3157+11551	Australia/Perth	Western Australia (most areas)
>+AU	-3143+12852	Australia/Eucla	Western Australia (Eucla)
>+AZ	+4023+04951	Asia/Baku
>+BB	+1306-05937	America/Barbados
>+BD	+2343+09025	Asia/Dhaka
>+BE	+5050+00420	Europe/Brussels
>+BG	+4241+02319	Europe/Sofia
>+BM	+3217-06446	Atlantic/Bermuda
>+BN	+0456+11455	Asia/Brunei
>+BO	-1630-06809	America/La_Paz
>+BR	-0351-03225	America/Noronha	Atlantic islands
>+BR	-0127-04829	America/Belem	ParÃ¡ (east); AmapÃ¡
>+BR	-0343-03830	America/Fortaleza	Brazil (northeast: MA, PI, CE, RN, PB)
>+BR	-0803-03454	America/Recife	Pernambuco
>+BR	-0712-04812	America/Araguaina	Tocantins
>+BR	-0940-03543	America/Maceio	Alagoas, Sergipe
>+BR	-1259-03831	America/Bahia	Bahia
>+BR	-2332-04637	America/Sao_Paulo	Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS)
>+BR	-2027-05437	America/Campo_Grande	Mato Grosso do Sul
>+BR	-1535-05605	America/Cuiaba	Mato Grosso
>+BR	-0226-05452	America/Santarem	ParÃ¡ (west)
>+BR	-0846-06354	America/Porto_Velho	RondÃ´nia
>+BR	+0249-06040	America/Boa_Vista	Roraima
>+BR	-0308-06001	America/Manaus	Amazonas (east)
>+BR	-0640-06952	America/Eirunepe	Amazonas (west)
>+BR	-0958-06748	America/Rio_Branco	Acre
>+BS	+2505-07721	America/Nassau
>+BT	+2728+08939	Asia/Thimphu
>+BY	+5354+02734	Europe/Minsk
>+BZ	+1730-08812	America/Belize
>+CA	+4734-05243	America/St_Johns	Newfoundland; Labrador (southeast)
>+CA	+4439-06336	America/Halifax	Atlantic - NS (most areas); PE
>+CA	+4612-05957	America/Glace_Bay	Atlantic - NS (Cape Breton)
>+CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
>+CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
>+CA	+5125-05707	America/Blanc-Sablon	AST - QC (Lower North Shore)
>+CA	+4339-07923	America/Toronto	Eastern - ON, QC (most areas)
>+CA	+4901-08816	America/Nipigon	Eastern - ON, QC (no DST 1967-73)
>+CA	+4823-08915	America/Thunder_Bay	Eastern - ON (Thunder Bay)
>+CA	+6344-06828	America/Iqaluit	Eastern - NU (most east areas)
>+CA	+6608-06544	America/Pangnirtung	Eastern - NU (Pangnirtung)
>+CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan); NU (Coral H)
>+CA	+4953-09709	America/Winnipeg	Central - ON (west); Manitoba
>+CA	+4843-09434	America/Rainy_River	Central - ON (Rainy R, Ft Frances)
>+CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
>+CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
>+CA	+5024-10439	America/Regina	CST - SK (most areas)
>+CA	+5017-10750	America/Swift_Current	CST - SK (midwest)
>+CA	+5333-11328	America/Edmonton	Mountain - AB; BC (E); SK (W)
>+CA	+690650-1050310	America/Cambridge_Bay	Mountain - NU (west)
>+CA	+6227-11421	America/Yellowknife	Mountain - NT (central)
>+CA	+682059-1334300	America/Inuvik	Mountain - NT (west)
>+CA	+4906-11631	America/Creston	MST - BC (Creston)
>+CA	+5946-12014	America/Dawson_Creek	MST - BC (Dawson Cr, Ft St John)
>+CA	+5848-12242	America/Fort_Nelson	MST - BC (Ft Nelson)
>+CA	+4916-12307	America/Vancouver	Pacific - BC (most areas)
>+CA	+6043-13503	America/Whitehorse	Pacific - Yukon (south)
>+CA	+6404-13925	America/Dawson	Pacific - Yukon (north)
>+CC	-1210+09655	Indian/Cocos
>+CH,DE,LI	+4723+00832	Europe/Zurich	Swiss time
>+CI,BF,GM,GN,ML,MR,SH,SL,SN,TG	+0519-00402	Africa/Abidjan
>+CK	-2114-15946	Pacific/Rarotonga
>+CL	-3327-07040	America/Santiago	Chile (most areas)
>+CL	-5309-07055	America/Punta_Arenas	Region of Magallanes
>+CL	-2709-10926	Pacific/Easter	Easter Island
>+CN	+3114+12128	Asia/Shanghai	Beijing Time
>+CN	+4348+08735	Asia/Urumqi	Xinjiang Time
>+CO	+0436-07405	America/Bogota
>+CR	+0956-08405	America/Costa_Rica
>+CU	+2308-08222	America/Havana
>+CV	+1455-02331	Atlantic/Cape_Verde
>+CW,AW,BQ,SX	+1211-06900	America/Curacao
>+CX	-1025+10543	Indian/Christmas
>+CY	+3510+03322	Asia/Nicosia	Cyprus (most areas)
>+CY	+3507+03357	Asia/Famagusta	Northern Cyprus
>+CZ,SK	+5005+01426	Europe/Prague
>+DE	+5230+01322	Europe/Berlin	Germany (most areas)
>+DK	+5540+01235	Europe/Copenhagen
>+DO	+1828-06954	America/Santo_Domingo
>+DZ	+3647+00303	Africa/Algiers
>+EC	-0210-07950	America/Guayaquil	Ecuador (mainland)
>+EC	-0054-08936	Pacific/Galapagos	GalÃ¡pagos Islands
>+EE	+5925+02445	Europe/Tallinn
>+EG	+3003+03115	Africa/Cairo
>+EH	+2709-01312	Africa/El_Aaiun
>+ES	+4024-00341	Europe/Madrid	Spain (mainland)
>+ES	+3553-00519	Africa/Ceuta	Ceuta, Melilla
>+ES	+2806-01524	Atlantic/Canary	Canary Islands
>+FI,AX	+6010+02458	Europe/Helsinki
>+FJ	-1808+17825	Pacific/Fiji
>+FK	-5142-05751	Atlantic/Stanley
>+FM	+0725+15147	Pacific/Chuuk	Chuuk/Truk, Yap
>+FM	+0658+15813	Pacific/Pohnpei	Pohnpei/Ponape
>+FM	+0519+16259	Pacific/Kosrae	Kosrae
>+FO	+6201-00646	Atlantic/Faroe
>+FR	+4852+00220	Europe/Paris
>+GB,GG,IM,JE	+513030-0000731	Europe/London
>+GE	+4143+04449	Asia/Tbilisi
>+GF	+0456-05220	America/Cayenne
>+GH	+0533-00013	Africa/Accra
>+GI	+3608-00521	Europe/Gibraltar
>+GL	+6411-05144	America/Godthab	Greenland (most areas)
>+GL	+7646-01840	America/Danmarkshavn	National Park (east coast)
>+GL	+7029-02158	America/Scoresbysund	Scoresbysund/Ittoqqortoormiit
>+GL	+7634-06847	America/Thule	Thule/Pituffik
>+GR	+3758+02343	Europe/Athens
>+GS	-5416-03632	Atlantic/South_Georgia
>+GT	+1438-09031	America/Guatemala
>+GU,MP	+1328+14445	Pacific/Guam
>+GW	+1151-01535	Africa/Bissau
>+GY	+0648-05810	America/Guyana
>+HK	+2217+11409	Asia/Hong_Kong
>+HN	+1406-08713	America/Tegucigalpa
>+HT	+1832-07220	America/Port-au-Prince
>+HU	+4730+01905	Europe/Budapest
>+ID	-0610+10648	Asia/Jakarta	Java, Sumatra
>+ID	-0002+10920	Asia/Pontianak	Borneo (west, central)
>+ID	-0507+11924	Asia/Makassar	Borneo (east, south); Sulawesi/Celebes, Bali, Nusa Tengarra; Timor (west)
>+ID	-0232+14042	Asia/Jayapura	New Guinea (West Papua / Irian Jaya); Malukus/Moluccas
>+IE	+5320-00615	Europe/Dublin
>+IL	+314650+0351326	Asia/Jerusalem
>+IN	+2232+08822	Asia/Kolkata
>+IO	-0720+07225	Indian/Chagos
>+IQ	+3321+04425	Asia/Baghdad
>+IR	+3540+05126	Asia/Tehran
>+IS	+6409-02151	Atlantic/Reykjavik
>+IT,SM,VA	+4154+01229	Europe/Rome
>+JM	+175805-0764736	America/Jamaica
>+JO	+3157+03556	Asia/Amman
>+JP	+353916+1394441	Asia/Tokyo
>+KE,DJ,ER,ET,KM,MG,SO,TZ,UG,YT	-0117+03649	Africa/Nairobi
>+KG	+4254+07436	Asia/Bishkek
>+KI	+0125+17300	Pacific/Tarawa	Gilbert Islands
>+KI	-0308-17105	Pacific/Enderbury	Phoenix Islands
>+KI	+0152-15720	Pacific/Kiritimati	Line Islands
>+KP	+3901+12545	Asia/Pyongyang
>+KR	+3733+12658	Asia/Seoul
>+KZ	+4315+07657	Asia/Almaty	Kazakhstan (most areas)
>+KZ	+4448+06528	Asia/Qyzylorda	Qyzylorda/Kyzylorda/Kzyl-Orda
>+KZ	+5017+05710	Asia/Aqtobe	AqtÃ¶be/Aktobe
>+KZ	+4431+05016	Asia/Aqtau	MangghystaÅ«/Mankistau
>+KZ	+4707+05156	Asia/Atyrau	AtyraÅ«/Atirau/Gur'yev
>+KZ	+5113+05121	Asia/Oral	West Kazakhstan
>+LB	+3353+03530	Asia/Beirut
>+LK	+0656+07951	Asia/Colombo
>+LR	+0618-01047	Africa/Monrovia
>+LT	+5441+02519	Europe/Vilnius
>+LU	+4936+00609	Europe/Luxembourg
>+LV	+5657+02406	Europe/Riga
>+LY	+3254+01311	Africa/Tripoli
>+MA	+3339-00735	Africa/Casablanca
>+MC	+4342+00723	Europe/Monaco
>+MD	+4700+02850	Europe/Chisinau
>+MH	+0709+17112	Pacific/Majuro	Marshall Islands (most areas)
>+MH	+0905+16720	Pacific/Kwajalein	Kwajalein
>+MM	+1647+09610	Asia/Yangon
>+MN	+4755+10653	Asia/Ulaanbaatar	Mongolia (most areas)
>+MN	+4801+09139	Asia/Hovd	Bayan-Ãlgii, Govi-Altai, Hovd, Uvs, Zavkhan
>+MN	+4804+11430	Asia/Choibalsan	Dornod, SÃ¼khbaatar
>+MO	+2214+11335	Asia/Macau
>+MQ	+1436-06105	America/Martinique
>+MT	+3554+01431	Europe/Malta
>+MU	-2010+05730	Indian/Mauritius
>+MV	+0410+07330	Indian/Maldives
>+MX	+1924-09909	America/Mexico_City	Central Time
>+MX	+2105-08646	America/Cancun	Eastern Standard Time - Quintana Roo
>+MX	+2058-08937	America/Merida	Central Time - Campeche, YucatÃ¡n
>+MX	+2540-10019	America/Monterrey	Central Time - Durango; Coahuila, Nuevo LeÃ³n, Tamaulipas (most areas)
>+MX	+2550-09730	America/Matamoros	Central Time US - Coahuila, Nuevo LeÃ³n, Tamaulipas (US border)
>+MX	+2313-10625	America/Mazatlan	Mountain Time - Baja California Sur, Nayarit, Sinaloa
>+MX	+2838-10605	America/Chihuahua	Mountain Time - Chihuahua (most areas)
>+MX	+2934-10425	America/Ojinaga	Mountain Time US - Chihuahua (US border)
>+MX	+2904-11058	America/Hermosillo	Mountain Standard Time - Sonora
>+MX	+3232-11701	America/Tijuana	Pacific Time US - Baja California
>+MX	+2048-10515	America/Bahia_Banderas	Central Time - BahÃa de Banderas
>+MY	+0310+10142	Asia/Kuala_Lumpur	Malaysia (peninsula)
>+MY	+0133+11020	Asia/Kuching	Sabah, Sarawak
>+MZ,BI,BW,CD,MW,RW,ZM,ZW	-2558+03235	Africa/Maputo	Central Africa Time
>+NA	-2234+01706	Africa/Windhoek
>+NC	-2216+16627	Pacific/Noumea
>+NF	-2903+16758	Pacific/Norfolk
>+NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE	+0627+00324	Africa/Lagos	West Africa Time
>+NI	+1209-08617	America/Managua
>+NL	+5222+00454	Europe/Amsterdam
>+NO,SJ	+5955+01045	Europe/Oslo
>+NP	+2743+08519	Asia/Kathmandu
>+NR	-0031+16655	Pacific/Nauru
>+NU	-1901-16955	Pacific/Niue
>+NZ,AQ	-3652+17446	Pacific/Auckland	New Zealand time
>+NZ	-4357-17633	Pacific/Chatham	Chatham Islands
>+PA,KY	+0858-07932	America/Panama
>+PE	-1203-07703	America/Lima
>+PF	-1732-14934	Pacific/Tahiti	Society Islands
>+PF	-0900-13930	Pacific/Marquesas	Marquesas Islands
>+PF	-2308-13457	Pacific/Gambier	Gambier Islands
>+PG	-0930+14710	Pacific/Port_Moresby	Papua New Guinea (most areas)
>+PG	-0613+15534	Pacific/Bougainville	Bougainville
>+PH	+1435+12100	Asia/Manila
>+PK	+2452+06703	Asia/Karachi
>+PL	+5215+02100	Europe/Warsaw
>+PM	+4703-05620	America/Miquelon
>+PN	-2504-13005	Pacific/Pitcairn
>+PR	+182806-0660622	America/Puerto_Rico
>+PS	+3130+03428	Asia/Gaza	Gaza Strip
>+PS	+313200+0350542	Asia/Hebron	West Bank
>+PT	+3843-00908	Europe/Lisbon	Portugal (mainland)
>+PT	+3238-01654	Atlantic/Madeira	Madeira Islands
>+PT	+3744-02540	Atlantic/Azores	Azores
>+PW	+0720+13429	Pacific/Palau
>+PY	-2516-05740	America/Asuncion
>+QA,BH	+2517+05132	Asia/Qatar
>+RE,TF	-2052+05528	Indian/Reunion	RÃ©union, Crozet, Scattered Islands
>+RO	+4426+02606	Europe/Bucharest
>+RS,BA,HR,ME,MK,SI	+4450+02030	Europe/Belgrade
>+RU	+5443+02030	Europe/Kaliningrad	MSK-01 - Kaliningrad
>+RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
>+RU	+4457+03406	Europe/Simferopol	MSK+00 - Crimea
>+RU	+4844+04425	Europe/Volgograd	MSK+00 - Volgograd
>+RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
>+RU	+4621+04803	Europe/Astrakhan	MSK+01 - Astrakhan
>+RU	+5134+04602	Europe/Saratov	MSK+01 - Saratov
>+RU	+5420+04824	Europe/Ulyanovsk	MSK+01 - Ulyanovsk
>+RU	+5312+05009	Europe/Samara	MSK+01 - Samara, Udmurtia
>+RU	+5651+06036	Asia/Yekaterinburg	MSK+02 - Urals
>+RU	+5500+07324	Asia/Omsk	MSK+03 - Omsk
>+RU	+5502+08255	Asia/Novosibirsk	MSK+04 - Novosibirsk
>+RU	+5322+08345	Asia/Barnaul	MSK+04 - Altai
>+RU	+5630+08458	Asia/Tomsk	MSK+04 - Tomsk
>+RU	+5345+08707	Asia/Novokuznetsk	MSK+04 - Kemerovo
>+RU	+5601+09250	Asia/Krasnoyarsk	MSK+04 - Krasnoyarsk area
>+RU	+5216+10420	Asia/Irkutsk	MSK+05 - Irkutsk, Buryatia
>+RU	+5203+11328	Asia/Chita	MSK+06 - Zabaykalsky
>+RU	+6200+12940	Asia/Yakutsk	MSK+06 - Lena River
>+RU	+623923+1353314	Asia/Khandyga	MSK+06 - Tomponsky, Ust-Maysky
>+RU	+4310+13156	Asia/Vladivostok	MSK+07 - Amur River
>+RU	+643337+1431336	Asia/Ust-Nera	MSK+07 - Oymyakonsky
>+RU	+5934+15048	Asia/Magadan	MSK+08 - Magadan
>+RU	+4658+14242	Asia/Sakhalin	MSK+08 - Sakhalin Island
>+RU	+6728+15343	Asia/Srednekolymsk	MSK+08 - Sakha (E); North Kuril Is
>+RU	+5301+15839	Asia/Kamchatka	MSK+09 - Kamchatka
>+RU	+6445+17729	Asia/Anadyr	MSK+09 - Bering Sea
>+SA,KW,YE	+2438+04643	Asia/Riyadh
>+SB	-0932+16012	Pacific/Guadalcanal
>+SC	-0440+05528	Indian/Mahe
>+SD	+1536+03232	Africa/Khartoum
>+SE	+5920+01803	Europe/Stockholm
>+SG	+0117+10351	Asia/Singapore
>+SR	+0550-05510	America/Paramaribo
>+SS	+0451+03137	Africa/Juba
>+ST	+0020+00644	Africa/Sao_Tome
>+SV	+1342-08912	America/El_Salvador
>+SY	+3330+03618	Asia/Damascus
>+TC	+2128-07108	America/Grand_Turk
>+TD	+1207+01503	Africa/Ndjamena
>+TF	-492110+0701303	Indian/Kerguelen	Kerguelen, St Paul Island, Amsterdam Island
>+TH,KH,LA,VN	+1345+10031	Asia/Bangkok	Indochina (most areas)
>+TJ	+3835+06848	Asia/Dushanbe
>+TK	-0922-17114	Pacific/Fakaofo
>+TL	-0833+12535	Asia/Dili
>+TM	+3757+05823	Asia/Ashgabat
>+TN	+3648+01011	Africa/Tunis
>+TO	-2110-17510	Pacific/Tongatapu
>+TR	+4101+02858	Europe/Istanbul
>+TT,AG,AI,BL,DM,GD,GP,KN,LC,MF,MS,VC,VG,VI	+1039-06131	America/Port_of_Spain
>+TV	-0831+17913	Pacific/Funafuti
>+TW	+2503+12130	Asia/Taipei
>+UA	+5026+03031	Europe/Kiev	Ukraine (most areas)
>+UA	+4837+02218	Europe/Uzhgorod	Ruthenia
>+UA	+4750+03510	Europe/Zaporozhye	Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east)
>+UM	+1917+16637	Pacific/Wake	Wake Island
>+US	+404251-0740023	America/New_York	Eastern (most areas)
>+US	+421953-0830245	America/Detroit	Eastern - MI (most areas)
>+US	+381515-0854534	America/Kentucky/Louisville	Eastern - KY (Louisville area)
>+US	+364947-0845057	America/Kentucky/Monticello	Eastern - KY (Wayne)
>+US	+394606-0860929	America/Indiana/Indianapolis	Eastern - IN (most areas)
>+US	+384038-0873143	America/Indiana/Vincennes	Eastern - IN (Da, Du, K, Mn)
>+US	+410305-0863611	America/Indiana/Winamac	Eastern - IN (Pulaski)
>+US	+382232-0862041	America/Indiana/Marengo	Eastern - IN (Crawford)
>+US	+382931-0871643	America/Indiana/Petersburg	Eastern - IN (Pike)
>+US	+384452-0850402	America/Indiana/Vevay	Eastern - IN (Switzerland)
>+US	+415100-0873900	America/Chicago	Central (most areas)
>+US	+375711-0864541	America/Indiana/Tell_City	Central - IN (Perry)
>+US	+411745-0863730	America/Indiana/Knox	Central - IN (Starke)
>+US	+450628-0873651	America/Menominee	Central - MI (Wisconsin border)
>+US	+470659-1011757	America/North_Dakota/Center	Central - ND (Oliver)
>+US	+465042-1012439	America/North_Dakota/New_Salem	Central - ND (Morton rural)
>+US	+471551-1014640	America/North_Dakota/Beulah	Central - ND (Mercer)
>+US	+394421-1045903	America/Denver	Mountain (most areas)
>+US	+433649-1161209	America/Boise	Mountain - ID (south); OR (east)
>+US	+332654-1120424	America/Phoenix	MST - Arizona (except Navajo)
>+US	+340308-1181434	America/Los_Angeles	Pacific
>+US	+611305-1495401	America/Anchorage	Alaska (most areas)
>+US	+581807-1342511	America/Juneau	Alaska - Juneau area
>+US	+571035-1351807	America/Sitka	Alaska - Sitka area
>+US	+550737-1313435	America/Metlakatla	Alaska - Annette Island
>+US	+593249-1394338	America/Yakutat	Alaska - Yakutat
>+US	+643004-1652423	America/Nome	Alaska (west)
>+US	+515248-1763929	America/Adak	Aleutian Islands
>+US,UM	+211825-1575130	Pacific/Honolulu	Hawaii
>+UY	-345433-0561245	America/Montevideo
>+UZ	+3940+06648	Asia/Samarkand	Uzbekistan (west)
>+UZ	+4120+06918	Asia/Tashkent	Uzbekistan (east)
>+VE	+1030-06656	America/Caracas
>+VN	+1045+10640	Asia/Ho_Chi_Minh	Vietnam (south)
>+VU	-1740+16825	Pacific/Efate
>+WF	-1318-17610	Pacific/Wallis
>+WS	-1350-17144	Pacific/Apia
>+ZA,LS,SZ	-2615+02800	Africa/Johannesburg
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_chrono.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_chrono.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf884a10ed9d988de04587c80805288b878dca7e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_chrono.inc
>@@ -0,0 +1,29 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include <chrono>
>+#include <cstdint>
>+
>+namespace absl {
>+namespace time_internal {
>+
>+static int64_t GetCurrentTimeNanosFromSystem() {
>+  return std::chrono::duration_cast<std::chrono::nanoseconds>(
>+             std::chrono::system_clock::now() -
>+             std::chrono::system_clock::from_time_t(0))
>+      .count();
>+}
>+
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_posix.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_posix.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..65474ca6da1e5078c5b11a91a53372aaa5fd48ce
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/get_current_time_posix.inc
>@@ -0,0 +1,22 @@
>+#include "absl/time/clock.h"
>+
>+#include <sys/time.h>
>+#include <ctime>
>+#include <cstdint>
>+
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+namespace time_internal {
>+
>+static int64_t GetCurrentTimeNanosFromSystem() {
>+  const int64_t kNanosPerSecond = 1000 * 1000 * 1000;
>+  struct timespec ts;
>+  ABSL_RAW_CHECK(clock_gettime(CLOCK_REALTIME, &ts) == 0,
>+                 "Failed to read real-time clock.");
>+  return (int64_t{ts.tv_sec} * kNanosPerSecond +
>+          int64_t{ts.tv_nsec});
>+}
>+
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..bbbef7da70c469f8d4db55d9dbd0c05f61059b6b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.cc
>@@ -0,0 +1,129 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/internal/test_util.h"
>+
>+#include <algorithm>
>+#include <cstddef>
>+#include <cstring>
>+
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/time/internal/cctz/include/cctz/zone_info_source.h"
>+
>+namespace cctz = absl::time_internal::cctz;
>+
>+namespace absl {
>+namespace time_internal {
>+
>+#if GTEST_USES_SIMPLE_RE
>+extern const char kZoneAbbrRE[] = ".*";  // just punt
>+#else
>+extern const char kZoneAbbrRE[] = "[A-Za-z]{3,4}|[-+][0-9]{2}([0-9]{2})?";
>+#endif
>+
>+TimeZone LoadTimeZone(const std::string& name) {
>+  TimeZone tz;
>+  ABSL_RAW_CHECK(LoadTimeZone(name, &tz), name.c_str());
>+  return tz;
>+}
>+
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+namespace absl {
>+namespace time_internal {
>+namespace cctz_extension {
>+namespace {
>+
>+// Embed the zoneinfo data for time zones used during tests and benchmarks.
>+// The data was generated using "xxd -i zoneinfo-file".  There is no need
>+// to update the data as long as the tests do not depend on recent changes
>+// (and the past rules remain the same).
>+#include "absl/time/internal/zoneinfo.inc"
>+
>+const struct ZoneInfo {
>+  const char* name;
>+  const char* data;
>+  std::size_t length;
>+} kZoneInfo[] = {
>+    // The three real time zones used by :time_test and :time_benchmark.
>+    {"America/Los_Angeles",  //
>+     reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len},
>+    {"America/New_York",  //
>+     reinterpret_cast<char*>(America_New_York), America_New_York_len},
>+    {"Australia/Sydney",  //
>+     reinterpret_cast<char*>(Australia_Sydney), Australia_Sydney_len},
>+
>+    // Other zones named in tests but which should fail to load.
>+    {"Invalid/TimeZone", nullptr, 0},
>+    {"", nullptr, 0},
>+
>+    // Also allow for loading the local time zone under TZ=US/Pacific.
>+    {"US/Pacific",  //
>+     reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len},
>+
>+    // Allows use of the local time zone from a system-specific location.
>+#ifdef _MSC_VER
>+    {"localtime",  //
>+     reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len},
>+#else
>+    {"/etc/localtime",  //
>+     reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len},
>+#endif
>+};
>+
>+class TestZoneInfoSource : public cctz::ZoneInfoSource {
>+ public:
>+  TestZoneInfoSource(const char* data, std::size_t size)
>+      : data_(data), end_(data + size) {}
>+
>+  std::size_t Read(void* ptr, std::size_t size) override {
>+    const std::size_t len = std::min<std::size_t>(size, end_ - data_);
>+    memcpy(ptr, data_, len);
>+    data_ += len;
>+    return len;
>+  }
>+
>+  int Skip(std::size_t offset) override {
>+    data_ += std::min<std::size_t>(offset, end_ - data_);
>+    return 0;
>+  }
>+
>+ private:
>+  const char* data_;
>+  const char* const end_;
>+};
>+
>+std::unique_ptr<cctz::ZoneInfoSource> TestFactory(
>+    const std::string& name,
>+    const std::function<std::unique_ptr<cctz::ZoneInfoSource>(
>+        const std::string& name)>& /*fallback_factory*/) {
>+  for (const ZoneInfo& zoneinfo : kZoneInfo) {
>+    if (name == zoneinfo.name) {
>+      if (zoneinfo.data == nullptr) return nullptr;
>+      return std::unique_ptr<cctz::ZoneInfoSource>(
>+          new TestZoneInfoSource(zoneinfo.data, zoneinfo.length));
>+    }
>+  }
>+  ABSL_RAW_LOG(FATAL, "Unexpected time zone \"%s\" in test", name.c_str());
>+  return nullptr;
>+}
>+
>+}  // namespace
>+
>+ZoneInfoSourceFactory zone_info_source_factory = TestFactory;
>+
>+}  // namespace cctz_extension
>+}  // namespace time_internal
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..8fd5fb9fd0382e8c4423749d609cc269e5e399d6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/test_util.h
>@@ -0,0 +1,55 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#ifndef ABSL_TIME_INTERNAL_TEST_UTIL_H_
>+#define ABSL_TIME_INTERNAL_TEST_UTIL_H_
>+
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/time/time.h"
>+
>+// This helper is a macro so that failed expectations show up with the
>+// correct line numbers.
>+//
>+// This is for internal testing of the Base Time library itself. This is not
>+// part of a public API.
>+#define ABSL_INTERNAL_EXPECT_TIME(bd, y, m, d, h, min, s, off, isdst)     \
>+  do {                                                                    \
>+    EXPECT_EQ(y, bd.year);                                                \
>+    EXPECT_EQ(m, bd.month);                                               \
>+    EXPECT_EQ(d, bd.day);                                                 \
>+    EXPECT_EQ(h, bd.hour);                                                \
>+    EXPECT_EQ(min, bd.minute);                                            \
>+    EXPECT_EQ(s, bd.second);                                              \
>+    EXPECT_EQ(off, bd.offset);                                            \
>+    EXPECT_EQ(isdst, bd.is_dst);                                          \
>+    EXPECT_THAT(bd.zone_abbr,                                             \
>+                testing::MatchesRegex(absl::time_internal::kZoneAbbrRE)); \
>+  } while (0)
>+
>+namespace absl {
>+namespace time_internal {
>+
>+// A regular expression that matches all zone abbreviations (%Z).
>+extern const char kZoneAbbrRE[];
>+
>+// Loads the named timezone, but dies on any failure.
>+absl::TimeZone LoadTimeZone(const std::string& name);
>+
>+}  // namespace time_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_INTERNAL_TEST_UTIL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/zoneinfo.inc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/zoneinfo.inc
>new file mode 100644
>index 0000000000000000000000000000000000000000..bfed82990dd5ba7f12d8d3169a5708690e36fa87
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/internal/zoneinfo.inc
>@@ -0,0 +1,729 @@
>+unsigned char America_Los_Angeles[] = {
>+  0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xba,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00,
>+  0x9e, 0xa6, 0x48, 0xa0, 0x9f, 0xbb, 0x15, 0x90, 0xa0, 0x86, 0x2a, 0xa0,
>+  0xa1, 0x9a, 0xf7, 0x90, 0xcb, 0x89, 0x1a, 0xa0, 0xd2, 0x23, 0xf4, 0x70,
>+  0xd2, 0x61, 0x26, 0x10, 0xd6, 0xfe, 0x74, 0x5c, 0xd8, 0x80, 0xad, 0x90,
>+  0xda, 0xfe, 0xc3, 0x90, 0xdb, 0xc0, 0x90, 0x10, 0xdc, 0xde, 0xa5, 0x90,
>+  0xdd, 0xa9, 0xac, 0x90, 0xde, 0xbe, 0x87, 0x90, 0xdf, 0x89, 0x8e, 0x90,
>+  0xe0, 0x9e, 0x69, 0x90, 0xe1, 0x69, 0x70, 0x90, 0xe2, 0x7e, 0x4b, 0x90,
>+  0xe3, 0x49, 0x52, 0x90, 0xe4, 0x5e, 0x2d, 0x90, 0xe5, 0x29, 0x34, 0x90,
>+  0xe6, 0x47, 0x4a, 0x10, 0xe7, 0x12, 0x51, 0x10, 0xe8, 0x27, 0x2c, 0x10,
>+  0xe8, 0xf2, 0x33, 0x10, 0xea, 0x07, 0x0e, 0x10, 0xea, 0xd2, 0x15, 0x10,
>+  0xeb, 0xe6, 0xf0, 0x10, 0xec, 0xb1, 0xf7, 0x10, 0xed, 0xc6, 0xd2, 0x10,
>+  0xee, 0x91, 0xd9, 0x10, 0xef, 0xaf, 0xee, 0x90, 0xf0, 0x71, 0xbb, 0x10,
>+  0xf1, 0x8f, 0xd0, 0x90, 0xf2, 0x7f, 0xc1, 0x90, 0xf3, 0x6f, 0xb2, 0x90,
>+  0xf4, 0x5f, 0xa3, 0x90, 0xf5, 0x4f, 0x94, 0x90, 0xf6, 0x3f, 0x85, 0x90,
>+  0xf7, 0x2f, 0x76, 0x90, 0xf8, 0x28, 0xa2, 0x10, 0xf9, 0x0f, 0x58, 0x90,
>+  0xfa, 0x08, 0x84, 0x10, 0xfa, 0xf8, 0x83, 0x20, 0xfb, 0xe8, 0x66, 0x10,
>+  0xfc, 0xd8, 0x65, 0x20, 0xfd, 0xc8, 0x48, 0x10, 0xfe, 0xb8, 0x47, 0x20,
>+  0xff, 0xa8, 0x2a, 0x10, 0x00, 0x98, 0x29, 0x20, 0x01, 0x88, 0x0c, 0x10,
>+  0x02, 0x78, 0x0b, 0x20, 0x03, 0x71, 0x28, 0x90, 0x04, 0x61, 0x27, 0xa0,
>+  0x05, 0x51, 0x0a, 0x90, 0x06, 0x41, 0x09, 0xa0, 0x07, 0x30, 0xec, 0x90,
>+  0x07, 0x8d, 0x43, 0xa0, 0x09, 0x10, 0xce, 0x90, 0x09, 0xad, 0xbf, 0x20,
>+  0x0a, 0xf0, 0xb0, 0x90, 0x0b, 0xe0, 0xaf, 0xa0, 0x0c, 0xd9, 0xcd, 0x10,
>+  0x0d, 0xc0, 0x91, 0xa0, 0x0e, 0xb9, 0xaf, 0x10, 0x0f, 0xa9, 0xae, 0x20,
>+  0x10, 0x99, 0x91, 0x10, 0x11, 0x89, 0x90, 0x20, 0x12, 0x79, 0x73, 0x10,
>+  0x13, 0x69, 0x72, 0x20, 0x14, 0x59, 0x55, 0x10, 0x15, 0x49, 0x54, 0x20,
>+  0x16, 0x39, 0x37, 0x10, 0x17, 0x29, 0x36, 0x20, 0x18, 0x22, 0x53, 0x90,
>+  0x19, 0x09, 0x18, 0x20, 0x1a, 0x02, 0x35, 0x90, 0x1a, 0xf2, 0x34, 0xa0,
>+  0x1b, 0xe2, 0x17, 0x90, 0x1c, 0xd2, 0x16, 0xa0, 0x1d, 0xc1, 0xf9, 0x90,
>+  0x1e, 0xb1, 0xf8, 0xa0, 0x1f, 0xa1, 0xdb, 0x90, 0x20, 0x76, 0x2b, 0x20,
>+  0x21, 0x81, 0xbd, 0x90, 0x22, 0x56, 0x0d, 0x20, 0x23, 0x6a, 0xda, 0x10,
>+  0x24, 0x35, 0xef, 0x20, 0x25, 0x4a, 0xbc, 0x10, 0x26, 0x15, 0xd1, 0x20,
>+  0x27, 0x2a, 0x9e, 0x10, 0x27, 0xfe, 0xed, 0xa0, 0x29, 0x0a, 0x80, 0x10,
>+  0x29, 0xde, 0xcf, 0xa0, 0x2a, 0xea, 0x62, 0x10, 0x2b, 0xbe, 0xb1, 0xa0,
>+  0x2c, 0xd3, 0x7e, 0x90, 0x2d, 0x9e, 0x93, 0xa0, 0x2e, 0xb3, 0x60, 0x90,
>+  0x2f, 0x7e, 0x75, 0xa0, 0x30, 0x93, 0x42, 0x90, 0x31, 0x67, 0x92, 0x20,
>+  0x32, 0x73, 0x24, 0x90, 0x33, 0x47, 0x74, 0x20, 0x34, 0x53, 0x06, 0x90,
>+  0x35, 0x27, 0x56, 0x20, 0x36, 0x32, 0xe8, 0x90, 0x37, 0x07, 0x38, 0x20,
>+  0x38, 0x1c, 0x05, 0x10, 0x38, 0xe7, 0x1a, 0x20, 0x39, 0xfb, 0xe7, 0x10,
>+  0x3a, 0xc6, 0xfc, 0x20, 0x3b, 0xdb, 0xc9, 0x10, 0x3c, 0xb0, 0x18, 0xa0,
>+  0x3d, 0xbb, 0xab, 0x10, 0x3e, 0x8f, 0xfa, 0xa0, 0x3f, 0x9b, 0x8d, 0x10,
>+  0x40, 0x6f, 0xdc, 0xa0, 0x41, 0x84, 0xa9, 0x90, 0x42, 0x4f, 0xbe, 0xa0,
>+  0x43, 0x64, 0x8b, 0x90, 0x44, 0x2f, 0xa0, 0xa0, 0x45, 0x44, 0x6d, 0x90,
>+  0x45, 0xf3, 0xd3, 0x20, 0x47, 0x2d, 0x8a, 0x10, 0x47, 0xd3, 0xb5, 0x20,
>+  0x49, 0x0d, 0x6c, 0x10, 0x49, 0xb3, 0x97, 0x20, 0x4a, 0xed, 0x4e, 0x10,
>+  0x4b, 0x9c, 0xb3, 0xa0, 0x4c, 0xd6, 0x6a, 0x90, 0x4d, 0x7c, 0x95, 0xa0,
>+  0x4e, 0xb6, 0x4c, 0x90, 0x4f, 0x5c, 0x77, 0xa0, 0x50, 0x96, 0x2e, 0x90,
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>+  0x00, 0x00, 0x6b, 0x96, 0x65, 0x20, 0x00, 0x00, 0x00, 0x00, 0x6c, 0xd0,
>+  0x1c, 0x10, 0x00, 0x00, 0x00, 0x00, 0x6d, 0x76, 0x47, 0x20, 0x00, 0x00,
>+  0x00, 0x00, 0x6e, 0xaf, 0xfe, 0x10, 0x00, 0x00, 0x00, 0x00, 0x6f, 0x56,
>+  0x29, 0x20, 0x00, 0x00, 0x00, 0x00, 0x70, 0x8f, 0xe0, 0x10, 0x00, 0x00,
>+  0x00, 0x00, 0x71, 0x36, 0x0b, 0x20, 0x00, 0x00, 0x00, 0x00, 0x72, 0x6f,
>+  0xc2, 0x10, 0x00, 0x00, 0x00, 0x00, 0x73, 0x15, 0xed, 0x20, 0x00, 0x00,
>+  0x00, 0x00, 0x74, 0x4f, 0xa4, 0x10, 0x00, 0x00, 0x00, 0x00, 0x74, 0xff,
>+  0x09, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x76, 0x38, 0xc0, 0x90, 0x00, 0x00,
>+  0x00, 0x00, 0x76, 0xde, 0xeb, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x78, 0x18,
>+  0xa2, 0x90, 0x00, 0x00, 0x00, 0x00, 0x78, 0xbe, 0xcd, 0xa0, 0x00, 0x00,
>+  0x00, 0x00, 0x79, 0xf8, 0x84, 0x90, 0x00, 0x00, 0x00, 0x00, 0x7a, 0x9e,
>+  0xaf, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x7b, 0xd8, 0x66, 0x90, 0x00, 0x00,
>+  0x00, 0x00, 0x7c, 0x7e, 0x91, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x7d, 0xb8,
>+  0x48, 0x90, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x5e, 0x73, 0xa0, 0x00, 0x00,
>+  0x00, 0x00, 0x7f, 0x98, 0x2a, 0x90, 0x00, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x03, 0x04, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0xff, 0xff, 0x91, 0x26, 0x00, 0x00, 0xff, 0xff, 0x9d, 0x90, 0x01,
>+  0x04, 0xff, 0xff, 0x8f, 0x80, 0x00, 0x08, 0xff, 0xff, 0x9d, 0x90, 0x01,
>+  0x0c, 0xff, 0xff, 0x9d, 0x90, 0x01, 0x10, 0x4c, 0x4d, 0x54, 0x00, 0x50,
>+  0x44, 0x54, 0x00, 0x50, 0x53, 0x54, 0x00, 0x50, 0x57, 0x54, 0x00, 0x50,
>+  0x50, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
>+  0x01, 0x0a, 0x50, 0x53, 0x54, 0x38, 0x50, 0x44, 0x54, 0x2c, 0x4d, 0x33,
>+  0x2e, 0x32, 0x2e, 0x30, 0x2c, 0x4d, 0x31, 0x31, 0x2e, 0x31, 0x2e, 0x30,
>+  0x0a
>+};
>+unsigned int America_Los_Angeles_len = 2845;
>+unsigned char America_New_York[] = {
>+  0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xec,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00,
>+  0x9e, 0xa6, 0x1e, 0x70, 0x9f, 0xba, 0xeb, 0x60, 0xa0, 0x86, 0x00, 0x70,
>+  0xa1, 0x9a, 0xcd, 0x60, 0xa2, 0x65, 0xe2, 0x70, 0xa3, 0x83, 0xe9, 0xe0,
>+  0xa4, 0x6a, 0xae, 0x70, 0xa5, 0x35, 0xa7, 0x60, 0xa6, 0x53, 0xca, 0xf0,
>+  0xa7, 0x15, 0x89, 0x60, 0xa8, 0x33, 0xac, 0xf0, 0xa8, 0xfe, 0xa5, 0xe0,
>+  0xaa, 0x13, 0x8e, 0xf0, 0xaa, 0xde, 0x87, 0xe0, 0xab, 0xf3, 0x70, 0xf0,
>+  0xac, 0xbe, 0x69, 0xe0, 0xad, 0xd3, 0x52, 0xf0, 0xae, 0x9e, 0x4b, 0xe0,
>+  0xaf, 0xb3, 0x34, 0xf0, 0xb0, 0x7e, 0x2d, 0xe0, 0xb1, 0x9c, 0x51, 0x70,
>+  0xb2, 0x67, 0x4a, 0x60, 0xb3, 0x7c, 0x33, 0x70, 0xb4, 0x47, 0x2c, 0x60,
>+  0xb5, 0x5c, 0x15, 0x70, 0xb6, 0x27, 0x0e, 0x60, 0xb7, 0x3b, 0xf7, 0x70,
>+  0xb8, 0x06, 0xf0, 0x60, 0xb9, 0x1b, 0xd9, 0x70, 0xb9, 0xe6, 0xd2, 0x60,
>+  0xbb, 0x04, 0xf5, 0xf0, 0xbb, 0xc6, 0xb4, 0x60, 0xbc, 0xe4, 0xd7, 0xf0,
>+  0xbd, 0xaf, 0xd0, 0xe0, 0xbe, 0xc4, 0xb9, 0xf0, 0xbf, 0x8f, 0xb2, 0xe0,
>+  0xc0, 0xa4, 0x9b, 0xf0, 0xc1, 0x6f, 0x94, 0xe0, 0xc2, 0x84, 0x7d, 0xf0,
>+  0xc3, 0x4f, 0x76, 0xe0, 0xc4, 0x64, 0x5f, 0xf0, 0xc5, 0x2f, 0x58, 0xe0,
>+  0xc6, 0x4d, 0x7c, 0x70, 0xc7, 0x0f, 0x3a, 0xe0, 0xc8, 0x2d, 0x5e, 0x70,
>+  0xc8, 0xf8, 0x57, 0x60, 0xca, 0x0d, 0x40, 0x70, 0xca, 0xd8, 0x39, 0x60,
>+  0xcb, 0x88, 0xf0, 0x70, 0xd2, 0x23, 0xf4, 0x70, 0xd2, 0x60, 0xfb, 0xe0,
>+  0xd3, 0x75, 0xe4, 0xf0, 0xd4, 0x40, 0xdd, 0xe0, 0xd5, 0x55, 0xc6, 0xf0,
>+  0xd6, 0x20, 0xbf, 0xe0, 0xd7, 0x35, 0xa8, 0xf0, 0xd8, 0x00, 0xa1, 0xe0,
>+  0xd9, 0x15, 0x8a, 0xf0, 0xd9, 0xe0, 0x83, 0xe0, 0xda, 0xfe, 0xa7, 0x70,
>+  0xdb, 0xc0, 0x65, 0xe0, 0xdc, 0xde, 0x89, 0x70, 0xdd, 0xa9, 0x82, 0x60,
>+  0xde, 0xbe, 0x6b, 0x70, 0xdf, 0x89, 0x64, 0x60, 0xe0, 0x9e, 0x4d, 0x70,
>+  0xe1, 0x69, 0x46, 0x60, 0xe2, 0x7e, 0x2f, 0x70, 0xe3, 0x49, 0x28, 0x60,
>+  0xe4, 0x5e, 0x11, 0x70, 0xe5, 0x57, 0x2e, 0xe0, 0xe6, 0x47, 0x2d, 0xf0,
>+  0xe7, 0x37, 0x10, 0xe0, 0xe8, 0x27, 0x0f, 0xf0, 0xe9, 0x16, 0xf2, 0xe0,
>+  0xea, 0x06, 0xf1, 0xf0, 0xea, 0xf6, 0xd4, 0xe0, 0xeb, 0xe6, 0xd3, 0xf0,
>+  0xec, 0xd6, 0xb6, 0xe0, 0xed, 0xc6, 0xb5, 0xf0, 0xee, 0xbf, 0xd3, 0x60,
>+  0xef, 0xaf, 0xd2, 0x70, 0xf0, 0x9f, 0xb5, 0x60, 0xf1, 0x8f, 0xb4, 0x70,
>+  0xf2, 0x7f, 0x97, 0x60, 0xf3, 0x6f, 0x96, 0x70, 0xf4, 0x5f, 0x79, 0x60,
>+  0xf5, 0x4f, 0x78, 0x70, 0xf6, 0x3f, 0x5b, 0x60, 0xf7, 0x2f, 0x5a, 0x70,
>+  0xf8, 0x28, 0x77, 0xe0, 0xf9, 0x0f, 0x3c, 0x70, 0xfa, 0x08, 0x59, 0xe0,
>+  0xfa, 0xf8, 0x58, 0xf0, 0xfb, 0xe8, 0x3b, 0xe0, 0xfc, 0xd8, 0x3a, 0xf0,
>+  0xfd, 0xc8, 0x1d, 0xe0, 0xfe, 0xb8, 0x1c, 0xf0, 0xff, 0xa7, 0xff, 0xe0,
>+  0x00, 0x97, 0xfe, 0xf0, 0x01, 0x87, 0xe1, 0xe0, 0x02, 0x77, 0xe0, 0xf0,
>+  0x03, 0x70, 0xfe, 0x60, 0x04, 0x60, 0xfd, 0x70, 0x05, 0x50, 0xe0, 0x60,
>+  0x06, 0x40, 0xdf, 0x70, 0x07, 0x30, 0xc2, 0x60, 0x07, 0x8d, 0x19, 0x70,
>+  0x09, 0x10, 0xa4, 0x60, 0x09, 0xad, 0x94, 0xf0, 0x0a, 0xf0, 0x86, 0x60,
>+  0x0b, 0xe0, 0x85, 0x70, 0x0c, 0xd9, 0xa2, 0xe0, 0x0d, 0xc0, 0x67, 0x70,
>+  0x0e, 0xb9, 0x84, 0xe0, 0x0f, 0xa9, 0x83, 0xf0, 0x10, 0x99, 0x66, 0xe0,
>+  0x11, 0x89, 0x65, 0xf0, 0x12, 0x79, 0x48, 0xe0, 0x13, 0x69, 0x47, 0xf0,
>+  0x14, 0x59, 0x2a, 0xe0, 0x15, 0x49, 0x29, 0xf0, 0x16, 0x39, 0x0c, 0xe0,
>+  0x17, 0x29, 0x0b, 0xf0, 0x18, 0x22, 0x29, 0x60, 0x19, 0x08, 0xed, 0xf0,
>+  0x1a, 0x02, 0x0b, 0x60, 0x1a, 0xf2, 0x0a, 0x70, 0x1b, 0xe1, 0xed, 0x60,
>+  0x1c, 0xd1, 0xec, 0x70, 0x1d, 0xc1, 0xcf, 0x60, 0x1e, 0xb1, 0xce, 0x70,
>+  0x1f, 0xa1, 0xb1, 0x60, 0x20, 0x76, 0x00, 0xf0, 0x21, 0x81, 0x93, 0x60,
>+  0x22, 0x55, 0xe2, 0xf0, 0x23, 0x6a, 0xaf, 0xe0, 0x24, 0x35, 0xc4, 0xf0,
>+  0x25, 0x4a, 0x91, 0xe0, 0x26, 0x15, 0xa6, 0xf0, 0x27, 0x2a, 0x73, 0xe0,
>+  0x27, 0xfe, 0xc3, 0x70, 0x29, 0x0a, 0x55, 0xe0, 0x29, 0xde, 0xa5, 0x70,
>+  0x2a, 0xea, 0x37, 0xe0, 0x2b, 0xbe, 0x87, 0x70, 0x2c, 0xd3, 0x54, 0x60,
>+  0x2d, 0x9e, 0x69, 0x70, 0x2e, 0xb3, 0x36, 0x60, 0x2f, 0x7e, 0x4b, 0x70,
>+  0x30, 0x93, 0x18, 0x60, 0x31, 0x67, 0x67, 0xf0, 0x32, 0x72, 0xfa, 0x60,
>+  0x33, 0x47, 0x49, 0xf0, 0x34, 0x52, 0xdc, 0x60, 0x35, 0x27, 0x2b, 0xf0,
>+  0x36, 0x32, 0xbe, 0x60, 0x37, 0x07, 0x0d, 0xf0, 0x38, 0x1b, 0xda, 0xe0,
>+  0x38, 0xe6, 0xef, 0xf0, 0x39, 0xfb, 0xbc, 0xe0, 0x3a, 0xc6, 0xd1, 0xf0,
>+  0x3b, 0xdb, 0x9e, 0xe0, 0x3c, 0xaf, 0xee, 0x70, 0x3d, 0xbb, 0x80, 0xe0,
>+  0x3e, 0x8f, 0xd0, 0x70, 0x3f, 0x9b, 0x62, 0xe0, 0x40, 0x6f, 0xb2, 0x70,
>+  0x41, 0x84, 0x7f, 0x60, 0x42, 0x4f, 0x94, 0x70, 0x43, 0x64, 0x61, 0x60,
>+  0x44, 0x2f, 0x76, 0x70, 0x45, 0x44, 0x43, 0x60, 0x45, 0xf3, 0xa8, 0xf0,
>+  0x47, 0x2d, 0x5f, 0xe0, 0x47, 0xd3, 0x8a, 0xf0, 0x49, 0x0d, 0x41, 0xe0,
>+  0x49, 0xb3, 0x6c, 0xf0, 0x4a, 0xed, 0x23, 0xe0, 0x4b, 0x9c, 0x89, 0x70,
>+  0x4c, 0xd6, 0x40, 0x60, 0x4d, 0x7c, 0x6b, 0x70, 0x4e, 0xb6, 0x22, 0x60,
>+  0x4f, 0x5c, 0x4d, 0x70, 0x50, 0x96, 0x04, 0x60, 0x51, 0x3c, 0x2f, 0x70,
>+  0x52, 0x75, 0xe6, 0x60, 0x53, 0x1c, 0x11, 0x70, 0x54, 0x55, 0xc8, 0x60,
>+  0x54, 0xfb, 0xf3, 0x70, 0x56, 0x35, 0xaa, 0x60, 0x56, 0xe5, 0x0f, 0xf0,
>+  0x58, 0x1e, 0xc6, 0xe0, 0x58, 0xc4, 0xf1, 0xf0, 0x59, 0xfe, 0xa8, 0xe0,
>+  0x5a, 0xa4, 0xd3, 0xf0, 0x5b, 0xde, 0x8a, 0xe0, 0x5c, 0x84, 0xb5, 0xf0,
>+  0x5d, 0xbe, 0x6c, 0xe0, 0x5e, 0x64, 0x97, 0xf0, 0x5f, 0x9e, 0x4e, 0xe0,
>+  0x60, 0x4d, 0xb4, 0x70, 0x61, 0x87, 0x6b, 0x60, 0x62, 0x2d, 0x96, 0x70,
>+  0x63, 0x67, 0x4d, 0x60, 0x64, 0x0d, 0x78, 0x70, 0x65, 0x47, 0x2f, 0x60,
>+  0x65, 0xed, 0x5a, 0x70, 0x67, 0x27, 0x11, 0x60, 0x67, 0xcd, 0x3c, 0x70,
>+  0x69, 0x06, 0xf3, 0x60, 0x69, 0xad, 0x1e, 0x70, 0x6a, 0xe6, 0xd5, 0x60,
>+  0x6b, 0x96, 0x3a, 0xf0, 0x6c, 0xcf, 0xf1, 0xe0, 0x6d, 0x76, 0x1c, 0xf0,
>+  0x6e, 0xaf, 0xd3, 0xe0, 0x6f, 0x55, 0xfe, 0xf0, 0x70, 0x8f, 0xb5, 0xe0,
>+  0x71, 0x35, 0xe0, 0xf0, 0x72, 0x6f, 0x97, 0xe0, 0x73, 0x15, 0xc2, 0xf0,
>+  0x74, 0x4f, 0x79, 0xe0, 0x74, 0xfe, 0xdf, 0x70, 0x76, 0x38, 0x96, 0x60,
>+  0x76, 0xde, 0xc1, 0x70, 0x78, 0x18, 0x78, 0x60, 0x78, 0xbe, 0xa3, 0x70,
>+  0x79, 0xf8, 0x5a, 0x60, 0x7a, 0x9e, 0x85, 0x70, 0x7b, 0xd8, 0x3c, 0x60,
>+  0x7c, 0x7e, 0x67, 0x70, 0x7d, 0xb8, 0x1e, 0x60, 0x7e, 0x5e, 0x49, 0x70,
>+  0x7f, 0x98, 0x00, 0x60, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x03, 0x04, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0xff, 0xff, 0xba, 0x9e, 0x00, 0x00, 0xff, 0xff, 0xc7, 0xc0, 0x01, 0x04,
>+  0xff, 0xff, 0xb9, 0xb0, 0x00, 0x08, 0xff, 0xff, 0xc7, 0xc0, 0x01, 0x0c,
>+  0xff, 0xff, 0xc7, 0xc0, 0x01, 0x10, 0x4c, 0x4d, 0x54, 0x00, 0x45, 0x44,
>+  0x54, 0x00, 0x45, 0x53, 0x54, 0x00, 0x45, 0x57, 0x54, 0x00, 0x45, 0x50,
>+  0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
>+  0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xed,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x14, 0xf8, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x03, 0xf0, 0x90,
>+  0xff, 0xff, 0xff, 0xff, 0x9e, 0xa6, 0x1e, 0x70, 0xff, 0xff, 0xff, 0xff,
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>+  0x7d, 0xb8, 0x1e, 0x60, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x5e, 0x49, 0x70,
>+  0x00, 0x00, 0x00, 0x00, 0x7f, 0x98, 0x00, 0x60, 0x00, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x03, 0x04,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0xff, 0xff, 0xba, 0x9e, 0x00, 0x00, 0xff,
>+  0xff, 0xc7, 0xc0, 0x01, 0x04, 0xff, 0xff, 0xb9, 0xb0, 0x00, 0x08, 0xff,
>+  0xff, 0xc7, 0xc0, 0x01, 0x0c, 0xff, 0xff, 0xc7, 0xc0, 0x01, 0x10, 0x4c,
>+  0x4d, 0x54, 0x00, 0x45, 0x44, 0x54, 0x00, 0x45, 0x53, 0x54, 0x00, 0x45,
>+  0x57, 0x54, 0x00, 0x45, 0x50, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
>+  0x00, 0x00, 0x00, 0x00, 0x01, 0x0a, 0x45, 0x53, 0x54, 0x35, 0x45, 0x44,
>+  0x54, 0x2c, 0x4d, 0x33, 0x2e, 0x32, 0x2e, 0x30, 0x2c, 0x4d, 0x31, 0x31,
>+  0x2e, 0x31, 0x2e, 0x30, 0x0a
>+};
>+unsigned int America_New_York_len = 3545;
>+unsigned char Australia_Sydney[] = {
>+  0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x0e, 0x80, 0x00, 0x00, 0x00,
>+  0x9c, 0x4e, 0xa6, 0x9c, 0x9c, 0xbc, 0x20, 0xf0, 0xcb, 0x54, 0xb3, 0x00,
>+  0xcb, 0xc7, 0x57, 0x70, 0xcc, 0xb7, 0x56, 0x80, 0xcd, 0xa7, 0x39, 0x70,
>+  0xce, 0xa0, 0x73, 0x00, 0xcf, 0x87, 0x1b, 0x70, 0x03, 0x70, 0x39, 0x80,
>+  0x04, 0x0d, 0x1c, 0x00, 0x05, 0x50, 0x1b, 0x80, 0x05, 0xf6, 0x38, 0x80,
>+  0x07, 0x2f, 0xfd, 0x80, 0x07, 0xd6, 0x1a, 0x80, 0x09, 0x0f, 0xdf, 0x80,
>+  0x09, 0xb5, 0xfc, 0x80, 0x0a, 0xef, 0xc1, 0x80, 0x0b, 0x9f, 0x19, 0x00,
>+  0x0c, 0xd8, 0xde, 0x00, 0x0d, 0x7e, 0xfb, 0x00, 0x0e, 0xb8, 0xc0, 0x00,
>+  0x0f, 0x5e, 0xdd, 0x00, 0x10, 0x98, 0xa2, 0x00, 0x11, 0x3e, 0xbf, 0x00,
>+  0x12, 0x78, 0x84, 0x00, 0x13, 0x1e, 0xa1, 0x00, 0x14, 0x58, 0x66, 0x00,
>+  0x14, 0xfe, 0x83, 0x00, 0x16, 0x38, 0x48, 0x00, 0x17, 0x0c, 0x89, 0x80,
>+  0x18, 0x21, 0x64, 0x80, 0x18, 0xc7, 0x81, 0x80, 0x1a, 0x01, 0x46, 0x80,
>+  0x1a, 0xa7, 0x63, 0x80, 0x1b, 0xe1, 0x28, 0x80, 0x1c, 0x87, 0x45, 0x80,
>+  0x1d, 0xc1, 0x0a, 0x80, 0x1e, 0x79, 0x9c, 0x80, 0x1f, 0x97, 0xb2, 0x00,
>+  0x20, 0x59, 0x7e, 0x80, 0x21, 0x80, 0xce, 0x80, 0x22, 0x42, 0x9b, 0x00,
>+  0x23, 0x69, 0xeb, 0x00, 0x24, 0x22, 0x7d, 0x00, 0x25, 0x49, 0xcd, 0x00,
>+  0x25, 0xef, 0xea, 0x00, 0x27, 0x29, 0xaf, 0x00, 0x27, 0xcf, 0xcc, 0x00,
>+  0x29, 0x09, 0x91, 0x00, 0x29, 0xaf, 0xae, 0x00, 0x2a, 0xe9, 0x73, 0x00,
>+  0x2b, 0x98, 0xca, 0x80, 0x2c, 0xd2, 0x8f, 0x80, 0x2d, 0x78, 0xac, 0x80,
>+  0x2e, 0xb2, 0x71, 0x80, 0x2f, 0x58, 0x8e, 0x80, 0x30, 0x92, 0x53, 0x80,
>+  0x31, 0x5d, 0x5a, 0x80, 0x32, 0x72, 0x35, 0x80, 0x33, 0x3d, 0x3c, 0x80,
>+  0x34, 0x52, 0x17, 0x80, 0x35, 0x1d, 0x1e, 0x80, 0x36, 0x31, 0xf9, 0x80,
>+  0x36, 0xfd, 0x00, 0x80, 0x38, 0x1b, 0x16, 0x00, 0x38, 0xdc, 0xe2, 0x80,
>+  0x39, 0xa7, 0xe9, 0x80, 0x3a, 0xbc, 0xc4, 0x80, 0x3b, 0xda, 0xda, 0x00,
>+  0x3c, 0xa5, 0xe1, 0x00, 0x3d, 0xba, 0xbc, 0x00, 0x3e, 0x85, 0xc3, 0x00,
>+  0x3f, 0x9a, 0x9e, 0x00, 0x40, 0x65, 0xa5, 0x00, 0x41, 0x83, 0xba, 0x80,
>+  0x42, 0x45, 0x87, 0x00, 0x43, 0x63, 0x9c, 0x80, 0x44, 0x2e, 0xa3, 0x80,
>+  0x45, 0x43, 0x7e, 0x80, 0x46, 0x05, 0x4b, 0x00, 0x47, 0x23, 0x60, 0x80,
>+  0x47, 0xf7, 0xa2, 0x00, 0x48, 0xe7, 0x93, 0x00, 0x49, 0xd7, 0x84, 0x00,
>+  0x4a, 0xc7, 0x75, 0x00, 0x4b, 0xb7, 0x66, 0x00, 0x4c, 0xa7, 0x57, 0x00,
>+  0x4d, 0x97, 0x48, 0x00, 0x4e, 0x87, 0x39, 0x00, 0x4f, 0x77, 0x2a, 0x00,
>+  0x50, 0x70, 0x55, 0x80, 0x51, 0x60, 0x46, 0x80, 0x52, 0x50, 0x37, 0x80,
>+  0x53, 0x40, 0x28, 0x80, 0x54, 0x30, 0x19, 0x80, 0x55, 0x20, 0x0a, 0x80,
>+  0x56, 0x0f, 0xfb, 0x80, 0x56, 0xff, 0xec, 0x80, 0x57, 0xef, 0xdd, 0x80,
>+  0x58, 0xdf, 0xce, 0x80, 0x59, 0xcf, 0xbf, 0x80, 0x5a, 0xbf, 0xb0, 0x80,
>+  0x5b, 0xb8, 0xdc, 0x00, 0x5c, 0xa8, 0xcd, 0x00, 0x5d, 0x98, 0xbe, 0x00,
>+  0x5e, 0x88, 0xaf, 0x00, 0x5f, 0x78, 0xa0, 0x00, 0x60, 0x68, 0x91, 0x00,
>+  0x61, 0x58, 0x82, 0x00, 0x62, 0x48, 0x73, 0x00, 0x63, 0x38, 0x64, 0x00,
>+  0x64, 0x28, 0x55, 0x00, 0x65, 0x18, 0x46, 0x00, 0x66, 0x11, 0x71, 0x80,
>+  0x67, 0x01, 0x62, 0x80, 0x67, 0xf1, 0x53, 0x80, 0x68, 0xe1, 0x44, 0x80,
>+  0x69, 0xd1, 0x35, 0x80, 0x6a, 0xc1, 0x26, 0x80, 0x6b, 0xb1, 0x17, 0x80,
>+  0x6c, 0xa1, 0x08, 0x80, 0x6d, 0x90, 0xf9, 0x80, 0x6e, 0x80, 0xea, 0x80,
>+  0x6f, 0x70, 0xdb, 0x80, 0x70, 0x6a, 0x07, 0x00, 0x71, 0x59, 0xf8, 0x00,
>+  0x72, 0x49, 0xe9, 0x00, 0x73, 0x39, 0xda, 0x00, 0x74, 0x29, 0xcb, 0x00,
>+  0x75, 0x19, 0xbc, 0x00, 0x76, 0x09, 0xad, 0x00, 0x76, 0xf9, 0x9e, 0x00,
>+  0x77, 0xe9, 0x8f, 0x00, 0x78, 0xd9, 0x80, 0x00, 0x79, 0xc9, 0x71, 0x00,
>+  0x7a, 0xb9, 0x62, 0x00, 0x7b, 0xb2, 0x8d, 0x80, 0x7c, 0xa2, 0x7e, 0x80,
>+  0x7d, 0x92, 0x6f, 0x80, 0x7e, 0x82, 0x60, 0x80, 0x7f, 0x72, 0x51, 0x80,
>+  0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03,
>+  0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x00, 0x00,
>+  0x8d, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x9a, 0xb0, 0x01, 0x04, 0x00, 0x00,
>+  0x8c, 0xa0, 0x00, 0x09, 0x00, 0x00, 0x9a, 0xb0, 0x01, 0x04, 0x00, 0x00,
>+  0x8c, 0xa0, 0x00, 0x09, 0x4c, 0x4d, 0x54, 0x00, 0x41, 0x45, 0x44, 0x54,
>+  0x00, 0x41, 0x45, 0x53, 0x54, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
>+  0x00, 0x00, 0x00, 0x8f, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x0e,
>+  0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
>+  0x73, 0x16, 0x7f, 0x3c, 0xff, 0xff, 0xff, 0xff, 0x9c, 0x4e, 0xa6, 0x9c,
>+  0xff, 0xff, 0xff, 0xff, 0x9c, 0xbc, 0x20, 0xf0, 0xff, 0xff, 0xff, 0xff,
>+  0xcb, 0x54, 0xb3, 0x00, 0xff, 0xff, 0xff, 0xff, 0xcb, 0xc7, 0x57, 0x70,
>+  0xff, 0xff, 0xff, 0xff, 0xcc, 0xb7, 0x56, 0x80, 0xff, 0xff, 0xff, 0xff,
>+  0xcd, 0xa7, 0x39, 0x70, 0xff, 0xff, 0xff, 0xff, 0xce, 0xa0, 0x73, 0x00,
>+  0xff, 0xff, 0xff, 0xff, 0xcf, 0x87, 0x1b, 0x70, 0x00, 0x00, 0x00, 0x00,
>+  0x03, 0x70, 0x39, 0x80, 0x00, 0x00, 0x00, 0x00, 0x04, 0x0d, 0x1c, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x05, 0x50, 0x1b, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x05, 0xf6, 0x38, 0x80, 0x00, 0x00, 0x00, 0x00, 0x07, 0x2f, 0xfd, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x07, 0xd6, 0x1a, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x09, 0x0f, 0xdf, 0x80, 0x00, 0x00, 0x00, 0x00, 0x09, 0xb5, 0xfc, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x0a, 0xef, 0xc1, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x0b, 0x9f, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0xd8, 0xde, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x0d, 0x7e, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x0e, 0xb8, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x5e, 0xdd, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x10, 0x98, 0xa2, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x11, 0x3e, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x78, 0x84, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x13, 0x1e, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x14, 0x58, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0xfe, 0x83, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x16, 0x38, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x17, 0x0c, 0x89, 0x80, 0x00, 0x00, 0x00, 0x00, 0x18, 0x21, 0x64, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x18, 0xc7, 0x81, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x1a, 0x01, 0x46, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1a, 0xa7, 0x63, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x1b, 0xe1, 0x28, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x1c, 0x87, 0x45, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1d, 0xc1, 0x0a, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x1e, 0x79, 0x9c, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x1f, 0x97, 0xb2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x59, 0x7e, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x21, 0x80, 0xce, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x22, 0x42, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x69, 0xeb, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x24, 0x22, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x25, 0x49, 0xcd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x25, 0xef, 0xea, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x27, 0x29, 0xaf, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x27, 0xcf, 0xcc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x09, 0x91, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x29, 0xaf, 0xae, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x2a, 0xe9, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0x98, 0xca, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x2c, 0xd2, 0x8f, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x2d, 0x78, 0xac, 0x80, 0x00, 0x00, 0x00, 0x00, 0x2e, 0xb2, 0x71, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x2f, 0x58, 0x8e, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x30, 0x92, 0x53, 0x80, 0x00, 0x00, 0x00, 0x00, 0x31, 0x5d, 0x5a, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x32, 0x72, 0x35, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x33, 0x3d, 0x3c, 0x80, 0x00, 0x00, 0x00, 0x00, 0x34, 0x52, 0x17, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x35, 0x1d, 0x1e, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x36, 0x31, 0xf9, 0x80, 0x00, 0x00, 0x00, 0x00, 0x36, 0xfd, 0x00, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x38, 0x1b, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x38, 0xdc, 0xe2, 0x80, 0x00, 0x00, 0x00, 0x00, 0x39, 0xa7, 0xe9, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x3a, 0xbc, 0xc4, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x3b, 0xda, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0xa5, 0xe1, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x3d, 0xba, 0xbc, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x3e, 0x85, 0xc3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x9a, 0x9e, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x40, 0x65, 0xa5, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x41, 0x83, 0xba, 0x80, 0x00, 0x00, 0x00, 0x00, 0x42, 0x45, 0x87, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x43, 0x63, 0x9c, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x44, 0x2e, 0xa3, 0x80, 0x00, 0x00, 0x00, 0x00, 0x45, 0x43, 0x7e, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x46, 0x05, 0x4b, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x47, 0x23, 0x60, 0x80, 0x00, 0x00, 0x00, 0x00, 0x47, 0xf7, 0xa2, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x48, 0xe7, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x49, 0xd7, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0xc7, 0x75, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x4b, 0xb7, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x4c, 0xa7, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4d, 0x97, 0x48, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x4e, 0x87, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x4f, 0x77, 0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x70, 0x55, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x51, 0x60, 0x46, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x52, 0x50, 0x37, 0x80, 0x00, 0x00, 0x00, 0x00, 0x53, 0x40, 0x28, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x54, 0x30, 0x19, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x55, 0x20, 0x0a, 0x80, 0x00, 0x00, 0x00, 0x00, 0x56, 0x0f, 0xfb, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x56, 0xff, 0xec, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x57, 0xef, 0xdd, 0x80, 0x00, 0x00, 0x00, 0x00, 0x58, 0xdf, 0xce, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x59, 0xcf, 0xbf, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x5a, 0xbf, 0xb0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x5b, 0xb8, 0xdc, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x5c, 0xa8, 0xcd, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x5d, 0x98, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5e, 0x88, 0xaf, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x5f, 0x78, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x60, 0x68, 0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x61, 0x58, 0x82, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x62, 0x48, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x63, 0x38, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x64, 0x28, 0x55, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x65, 0x18, 0x46, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x66, 0x11, 0x71, 0x80, 0x00, 0x00, 0x00, 0x00, 0x67, 0x01, 0x62, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x67, 0xf1, 0x53, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x68, 0xe1, 0x44, 0x80, 0x00, 0x00, 0x00, 0x00, 0x69, 0xd1, 0x35, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x6a, 0xc1, 0x26, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x6b, 0xb1, 0x17, 0x80, 0x00, 0x00, 0x00, 0x00, 0x6c, 0xa1, 0x08, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x6d, 0x90, 0xf9, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x6e, 0x80, 0xea, 0x80, 0x00, 0x00, 0x00, 0x00, 0x6f, 0x70, 0xdb, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x70, 0x6a, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x71, 0x59, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x72, 0x49, 0xe9, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x73, 0x39, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x74, 0x29, 0xcb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x19, 0xbc, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x76, 0x09, 0xad, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x76, 0xf9, 0x9e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x77, 0xe9, 0x8f, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x78, 0xd9, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
>+  0x79, 0xc9, 0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7a, 0xb9, 0x62, 0x00,
>+  0x00, 0x00, 0x00, 0x00, 0x7b, 0xb2, 0x8d, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x7c, 0xa2, 0x7e, 0x80, 0x00, 0x00, 0x00, 0x00, 0x7d, 0x92, 0x6f, 0x80,
>+  0x00, 0x00, 0x00, 0x00, 0x7e, 0x82, 0x60, 0x80, 0x00, 0x00, 0x00, 0x00,
>+  0x7f, 0x72, 0x51, 0x80, 0x00, 0x02, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02,
>+  0x01, 0x02, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04, 0x03, 0x04,
>+  0x03, 0x04, 0x03, 0x00, 0x00, 0x8d, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x9a,
>+  0xb0, 0x01, 0x04, 0x00, 0x00, 0x8c, 0xa0, 0x00, 0x09, 0x00, 0x00, 0x9a,
>+  0xb0, 0x01, 0x04, 0x00, 0x00, 0x8c, 0xa0, 0x00, 0x09, 0x4c, 0x4d, 0x54,
>+  0x00, 0x41, 0x45, 0x44, 0x54, 0x00, 0x41, 0x45, 0x53, 0x54, 0x00, 0x00,
>+  0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x41, 0x45,
>+  0x53, 0x54, 0x2d, 0x31, 0x30, 0x41, 0x45, 0x44, 0x54, 0x2c, 0x4d, 0x31,
>+  0x30, 0x2e, 0x31, 0x2e, 0x30, 0x2c, 0x4d, 0x34, 0x2e, 0x31, 0x2e, 0x30,
>+  0x2f, 0x33, 0x0a
>+};
>+unsigned int Australia_Sydney_len = 2223;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..71fd8ee6e7434da9f93e61da2fe36f73c1ccaa60
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.cc
>@@ -0,0 +1,384 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// The implementation of the absl::Time class, which is declared in
>+// //absl/time.h.
>+//
>+// The representation for an absl::Time is an absl::Duration offset from the
>+// epoch.  We use the traditional Unix epoch (1970-01-01 00:00:00 +0000)
>+// for convenience, but this is not exposed in the API and could be changed.
>+//
>+// NOTE: To keep type verbosity to a minimum, the following variable naming
>+// conventions are used throughout this file.
>+//
>+// cz: A cctz::time_zone
>+// tz: An absl::TimeZone
>+// cl: A cctz::time_zone::civil_lookup
>+// al: A cctz::time_zone::absolute_lookup
>+// cd: A cctz::civil_day
>+// cs: A cctz::civil_second
>+// bd: An absl::Time::Breakdown
>+
>+#include "absl/time/time.h"
>+
>+#include <cstring>
>+#include <ctime>
>+#include <limits>
>+
>+#include "absl/time/internal/cctz/include/cctz/civil_time.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+namespace cctz = absl::time_internal::cctz;
>+namespace absl {
>+
>+namespace {
>+
>+inline cctz::time_point<cctz::seconds> unix_epoch() {
>+  return std::chrono::time_point_cast<cctz::seconds>(
>+      std::chrono::system_clock::from_time_t(0));
>+}
>+
>+// Floors d to the next unit boundary closer to negative infinity.
>+inline int64_t FloorToUnit(absl::Duration d, absl::Duration unit) {
>+  absl::Duration rem;
>+  int64_t q = absl::IDivDuration(d, unit, &rem);
>+  return (q > 0 ||
>+          rem >= ZeroDuration() ||
>+          q == std::numeric_limits<int64_t>::min()) ? q : q - 1;
>+}
>+
>+inline absl::Time::Breakdown InfiniteFutureBreakdown() {
>+  absl::Time::Breakdown bd;
>+  bd.year = std::numeric_limits<int64_t>::max();
>+  bd.month = 12;
>+  bd.day = 31;
>+  bd.hour = 23;
>+  bd.minute = 59;
>+  bd.second = 59;
>+  bd.subsecond = absl::InfiniteDuration();
>+  bd.weekday = 4;
>+  bd.yearday = 365;
>+  bd.offset = 0;
>+  bd.is_dst = false;
>+  bd.zone_abbr = "-00";
>+  return bd;
>+}
>+
>+inline Time::Breakdown InfinitePastBreakdown() {
>+  Time::Breakdown bd;
>+  bd.year = std::numeric_limits<int64_t>::min();
>+  bd.month = 1;
>+  bd.day = 1;
>+  bd.hour = 0;
>+  bd.minute = 0;
>+  bd.second = 0;
>+  bd.subsecond = -absl::InfiniteDuration();
>+  bd.weekday = 7;
>+  bd.yearday = 1;
>+  bd.offset = 0;
>+  bd.is_dst = false;
>+  bd.zone_abbr = "-00";
>+  return bd;
>+}
>+
>+inline absl::TimeConversion InfiniteFutureTimeConversion() {
>+  absl::TimeConversion tc;
>+  tc.pre = tc.trans = tc.post = absl::InfiniteFuture();
>+  tc.kind = absl::TimeConversion::UNIQUE;
>+  tc.normalized = true;
>+  return tc;
>+}
>+
>+inline TimeConversion InfinitePastTimeConversion() {
>+  absl::TimeConversion tc;
>+  tc.pre = tc.trans = tc.post = absl::InfinitePast();
>+  tc.kind = absl::TimeConversion::UNIQUE;
>+  tc.normalized = true;
>+  return tc;
>+}
>+
>+// Makes a Time from sec, overflowing to InfiniteFuture/InfinitePast as
>+// necessary. If sec is min/max, then consult cs+tz to check for overlow.
>+Time MakeTimeWithOverflow(const cctz::time_point<cctz::seconds>& sec,
>+                          const cctz::civil_second& cs,
>+                          const cctz::time_zone& tz,
>+                          bool* normalized = nullptr) {
>+  const auto max = cctz::time_point<cctz::seconds>::max();
>+  const auto min = cctz::time_point<cctz::seconds>::min();
>+  if (sec == max) {
>+    const auto al = tz.lookup(max);
>+    if (cs > al.cs) {
>+      if (normalized) *normalized = true;
>+      return absl::InfiniteFuture();
>+    }
>+  }
>+  if (sec == min) {
>+    const auto al = tz.lookup(min);
>+    if (cs < al.cs) {
>+      if (normalized) *normalized = true;
>+      return absl::InfinitePast();
>+    }
>+  }
>+  const auto hi = (sec - unix_epoch()).count();
>+  return time_internal::FromUnixDuration(time_internal::MakeDuration(hi));
>+}
>+
>+inline absl::TimeConversion::Kind MapKind(
>+    const cctz::time_zone::civil_lookup::civil_kind& kind) {
>+  switch (kind) {
>+    case cctz::time_zone::civil_lookup::UNIQUE:
>+      return absl::TimeConversion::UNIQUE;
>+    case cctz::time_zone::civil_lookup::SKIPPED:
>+      return absl::TimeConversion::SKIPPED;
>+    case cctz::time_zone::civil_lookup::REPEATED:
>+      return absl::TimeConversion::REPEATED;
>+  }
>+  return absl::TimeConversion::UNIQUE;
>+}
>+
>+// Returns Mon=1..Sun=7.
>+inline int MapWeekday(const cctz::weekday& wd) {
>+  switch (wd) {
>+    case cctz::weekday::monday:
>+      return 1;
>+    case cctz::weekday::tuesday:
>+      return 2;
>+    case cctz::weekday::wednesday:
>+      return 3;
>+    case cctz::weekday::thursday:
>+      return 4;
>+    case cctz::weekday::friday:
>+      return 5;
>+    case cctz::weekday::saturday:
>+      return 6;
>+    case cctz::weekday::sunday:
>+      return 7;
>+  }
>+  return 1;
>+}
>+
>+}  // namespace
>+
>+absl::Time::Breakdown Time::In(absl::TimeZone tz) const {
>+  if (*this == absl::InfiniteFuture()) return absl::InfiniteFutureBreakdown();
>+  if (*this == absl::InfinitePast()) return absl::InfinitePastBreakdown();
>+
>+  const auto tp = unix_epoch() + cctz::seconds(time_internal::GetRepHi(rep_));
>+  const auto al = cctz::time_zone(tz).lookup(tp);
>+  const auto cs = al.cs;
>+  const auto cd = cctz::civil_day(cs);
>+
>+  absl::Time::Breakdown bd;
>+  bd.year = cs.year();
>+  bd.month = cs.month();
>+  bd.day = cs.day();
>+  bd.hour = cs.hour();
>+  bd.minute = cs.minute();
>+  bd.second = cs.second();
>+  bd.subsecond = time_internal::MakeDuration(0, time_internal::GetRepLo(rep_));
>+  bd.weekday = MapWeekday(get_weekday(cd));
>+  bd.yearday = get_yearday(cd);
>+  bd.offset = al.offset;
>+  bd.is_dst = al.is_dst;
>+  bd.zone_abbr = al.abbr;
>+  return bd;
>+}
>+
>+absl::Time FromTM(const struct tm& tm, absl::TimeZone tz) {
>+  const auto cz = cctz::time_zone(tz);
>+  const auto cs =
>+      cctz::civil_second(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
>+                         tm.tm_hour, tm.tm_min, tm.tm_sec);
>+  const auto cl = cz.lookup(cs);
>+  const auto tp = tm.tm_isdst == 0 ? cl.post : cl.pre;
>+  return MakeTimeWithOverflow(tp, cs, cz);
>+}
>+
>+struct tm ToTM(absl::Time t, absl::TimeZone tz) {
>+  const absl::Time::Breakdown bd = t.In(tz);
>+  struct tm tm;
>+  std::memset(&tm, 0, sizeof(tm));
>+  tm.tm_sec = bd.second;
>+  tm.tm_min = bd.minute;
>+  tm.tm_hour = bd.hour;
>+  tm.tm_mday = bd.day;
>+  tm.tm_mon = bd.month - 1;
>+
>+  // Saturates tm.tm_year in cases of over/underflow, accounting for the fact
>+  // that tm.tm_year is years since 1900.
>+  if (bd.year < std::numeric_limits<int>::min() + 1900) {
>+    tm.tm_year = std::numeric_limits<int>::min();
>+  } else if (bd.year > std::numeric_limits<int>::max()) {
>+    tm.tm_year = std::numeric_limits<int>::max() - 1900;
>+  } else {
>+    tm.tm_year = static_cast<int>(bd.year - 1900);
>+  }
>+
>+  tm.tm_wday = bd.weekday % 7;
>+  tm.tm_yday = bd.yearday - 1;
>+  tm.tm_isdst = bd.is_dst ? 1 : 0;
>+
>+  return tm;
>+}
>+
>+//
>+// Factory functions.
>+//
>+
>+absl::TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
>+                                     int min, int sec, TimeZone tz) {
>+  // Avoids years that are too extreme for civil_second to normalize.
>+  if (year > 300000000000) return InfiniteFutureTimeConversion();
>+  if (year < -300000000000) return InfinitePastTimeConversion();
>+  const auto cz = cctz::time_zone(tz);
>+  const auto cs = cctz::civil_second(year, mon, day, hour, min, sec);
>+  absl::TimeConversion tc;
>+  tc.normalized = year != cs.year() || mon != cs.month() || day != cs.day() ||
>+                  hour != cs.hour() || min != cs.minute() || sec != cs.second();
>+  const auto cl = cz.lookup(cs);
>+  // Converts the civil_lookup struct to a TimeConversion.
>+  tc.pre = MakeTimeWithOverflow(cl.pre, cs, cz, &tc.normalized);
>+  tc.trans = MakeTimeWithOverflow(cl.trans, cs, cz, &tc.normalized);
>+  tc.post = MakeTimeWithOverflow(cl.post, cs, cz, &tc.normalized);
>+  tc.kind = MapKind(cl.kind);
>+  return tc;
>+}
>+
>+absl::Time FromDateTime(int64_t year, int mon, int day, int hour, int min,
>+                        int sec, TimeZone tz) {
>+  if (year > 300000000000) return InfiniteFuture();
>+  if (year < -300000000000) return InfinitePast();
>+  const auto cz = cctz::time_zone(tz);
>+  const auto cs = cctz::civil_second(year, mon, day, hour, min, sec);
>+  const auto cl = cz.lookup(cs);
>+  return MakeTimeWithOverflow(cl.pre, cs, cz);
>+}
>+
>+absl::Time TimeFromTimespec(timespec ts) {
>+  return time_internal::FromUnixDuration(absl::DurationFromTimespec(ts));
>+}
>+
>+absl::Time TimeFromTimeval(timeval tv) {
>+  return time_internal::FromUnixDuration(absl::DurationFromTimeval(tv));
>+}
>+
>+absl::Time FromUDate(double udate) {
>+  return time_internal::FromUnixDuration(absl::Milliseconds(udate));
>+}
>+
>+absl::Time FromUniversal(int64_t universal) {
>+  return absl::UniversalEpoch() + 100 * absl::Nanoseconds(universal);
>+}
>+
>+//
>+// Conversion to other time types.
>+//
>+
>+int64_t ToUnixNanos(Time t) {
>+  if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 &&
>+      time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 33 == 0) {
>+    return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) *
>+            1000 * 1000 * 1000) +
>+           (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) / 4);
>+  }
>+  return FloorToUnit(time_internal::ToUnixDuration(t), absl::Nanoseconds(1));
>+}
>+
>+int64_t ToUnixMicros(Time t) {
>+  if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 &&
>+      time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 43 == 0) {
>+    return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) *
>+            1000 * 1000) +
>+           (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) / 4000);
>+  }
>+  return FloorToUnit(time_internal::ToUnixDuration(t), absl::Microseconds(1));
>+}
>+
>+int64_t ToUnixMillis(Time t) {
>+  if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 &&
>+      time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 53 == 0) {
>+    return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) * 1000) +
>+           (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) /
>+            (4000 * 1000));
>+  }
>+  return FloorToUnit(time_internal::ToUnixDuration(t), absl::Milliseconds(1));
>+}
>+
>+int64_t ToUnixSeconds(Time t) {
>+  return time_internal::GetRepHi(time_internal::ToUnixDuration(t));
>+}
>+
>+time_t ToTimeT(Time t) { return absl::ToTimespec(t).tv_sec; }
>+
>+timespec ToTimespec(Time t) {
>+  timespec ts;
>+  absl::Duration d = time_internal::ToUnixDuration(t);
>+  if (!time_internal::IsInfiniteDuration(d)) {
>+    ts.tv_sec = time_internal::GetRepHi(d);
>+    if (ts.tv_sec == time_internal::GetRepHi(d)) {  // no time_t narrowing
>+      ts.tv_nsec = time_internal::GetRepLo(d) / 4;  // floor
>+      return ts;
>+    }
>+  }
>+  if (d >= absl::ZeroDuration()) {
>+    ts.tv_sec = std::numeric_limits<time_t>::max();
>+    ts.tv_nsec = 1000 * 1000 * 1000 - 1;
>+  } else {
>+    ts.tv_sec = std::numeric_limits<time_t>::min();
>+    ts.tv_nsec = 0;
>+  }
>+  return ts;
>+}
>+
>+timeval ToTimeval(Time t) {
>+  timeval tv;
>+  timespec ts = absl::ToTimespec(t);
>+  tv.tv_sec = ts.tv_sec;
>+  if (tv.tv_sec != ts.tv_sec) {  // narrowing
>+    if (ts.tv_sec < 0) {
>+      tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::min();
>+      tv.tv_usec = 0;
>+    } else {
>+      tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::max();
>+      tv.tv_usec = 1000 * 1000 - 1;
>+    }
>+    return tv;
>+  }
>+  tv.tv_usec = static_cast<int>(ts.tv_nsec / 1000);  // suseconds_t
>+  return tv;
>+}
>+
>+double ToUDate(Time t) {
>+  return absl::FDivDuration(time_internal::ToUnixDuration(t),
>+                            absl::Milliseconds(1));
>+}
>+
>+int64_t ToUniversal(absl::Time t) {
>+  return absl::FloorToUnit(t - absl::UniversalEpoch(), absl::Nanoseconds(100));
>+}
>+
>+Time FromChrono(const std::chrono::system_clock::time_point& tp) {
>+  return time_internal::FromUnixDuration(time_internal::FromChrono(
>+      tp - std::chrono::system_clock::from_time_t(0)));
>+}
>+
>+std::chrono::system_clock::time_point ToChronoTime(absl::Time t) {
>+  using D = std::chrono::system_clock::duration;
>+  auto d = time_internal::ToUnixDuration(t);
>+  if (d < ZeroDuration()) d = Floor(d, FromChrono(D{1}));
>+  return std::chrono::system_clock::from_time_t(0) +
>+         time_internal::ToChronoDuration<D>(d);
>+}
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c41cb89c5eff1d4daf8ecb16c5b15639702f6462
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time.h
>@@ -0,0 +1,1349 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// File: time.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines abstractions for computing with absolute points
>+// in time, durations of time, and formatting and parsing time within a given
>+// time zone. The following abstractions are defined:
>+//
>+//  * `absl::Time` defines an absolute, specific instance in time
>+//  * `absl::Duration` defines a signed, fixed-length span of time
>+//  * `absl::TimeZone` defines geopolitical time zone regions (as collected
>+//     within the IANA Time Zone database (https://www.iana.org/time-zones)).
>+//
>+// Example:
>+//
>+//   absl::TimeZone nyc;
>+//
>+//   // LoadTimeZone may fail so it's always better to check for success.
>+//   if (!absl::LoadTimeZone("America/New_York", &nyc)) {
>+//      // handle error case
>+//   }
>+//
>+//   // My flight leaves NYC on Jan 2, 2017 at 03:04:05
>+//   absl::Time takeoff = absl::FromDateTime(2017, 1, 2, 3, 4, 5, nyc);
>+//   absl::Duration flight_duration = absl::Hours(21) + absl::Minutes(35);
>+//   absl::Time landing = takeoff + flight_duration;
>+//
>+//   absl::TimeZone syd;
>+//   if (!absl::LoadTimeZone("Australia/Sydney", &syd)) {
>+//      // handle error case
>+//   }
>+//   std::string s = absl::FormatTime(
>+//       "My flight will land in Sydney on %Y-%m-%d at %H:%M:%S",
>+//       landing, syd);
>+//
>+#ifndef ABSL_TIME_TIME_H_
>+#define ABSL_TIME_TIME_H_
>+
>+#if !defined(_MSC_VER)
>+#include <sys/time.h>
>+#else
>+#include <winsock2.h>
>+#endif
>+#include <chrono>  // NOLINT(build/c++11)
>+#include <cstdint>
>+#include <ctime>
>+#include <ostream>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/base/port.h"  // Needed for string vs std::string
>+#include "absl/strings/string_view.h"
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+namespace absl {
>+
>+class Duration;  // Defined below
>+class Time;      // Defined below
>+class TimeZone;  // Defined below
>+
>+namespace time_internal {
>+int64_t IDivDuration(bool satq, Duration num, Duration den, Duration* rem);
>+constexpr Time FromUnixDuration(Duration d);
>+constexpr Duration ToUnixDuration(Time t);
>+constexpr int64_t GetRepHi(Duration d);
>+constexpr uint32_t GetRepLo(Duration d);
>+constexpr Duration MakeDuration(int64_t hi, uint32_t lo);
>+constexpr Duration MakeDuration(int64_t hi, int64_t lo);
>+inline Duration MakePosDoubleDuration(double n);
>+constexpr int64_t kTicksPerNanosecond = 4;
>+constexpr int64_t kTicksPerSecond = 1000 * 1000 * 1000 * kTicksPerNanosecond;
>+template <std::intmax_t N>
>+constexpr Duration FromInt64(int64_t v, std::ratio<1, N>);
>+constexpr Duration FromInt64(int64_t v, std::ratio<60>);
>+constexpr Duration FromInt64(int64_t v, std::ratio<3600>);
>+template <typename T>
>+using EnableIfIntegral = typename std::enable_if<
>+    std::is_integral<T>::value || std::is_enum<T>::value, int>::type;
>+template <typename T>
>+using EnableIfFloat =
>+    typename std::enable_if<std::is_floating_point<T>::value, int>::type;
>+}  // namespace time_internal
>+
>+// Duration
>+//
>+// The `absl::Duration` class represents a signed, fixed-length span of time.
>+// A `Duration` is generated using a unit-specific factory function, or is
>+// the result of subtracting one `absl::Time` from another. Durations behave
>+// like unit-safe integers and they support all the natural integer-like
>+// arithmetic operations. Arithmetic overflows and saturates at +/- infinity.
>+// `Duration` should be passed by value rather than const reference.
>+//
>+// Factory functions `Nanoseconds()`, `Microseconds()`, `Milliseconds()`,
>+// `Seconds()`, `Minutes()`, `Hours()` and `InfiniteDuration()` allow for
>+// creation of constexpr `Duration` values
>+//
>+// Examples:
>+//
>+//   constexpr absl::Duration ten_ns = absl::Nanoseconds(10);
>+//   constexpr absl::Duration min = absl::Minutes(1);
>+//   constexpr absl::Duration hour = absl::Hours(1);
>+//   absl::Duration dur = 60 * min;  // dur == hour
>+//   absl::Duration half_sec = absl::Milliseconds(500);
>+//   absl::Duration quarter_sec = 0.25 * absl::Seconds(1);
>+//
>+// `Duration` values can be easily converted to an integral number of units
>+// using the division operator.
>+//
>+// Example:
>+//
>+//   constexpr absl::Duration dur = absl::Milliseconds(1500);
>+//   int64_t ns = dur / absl::Nanoseconds(1);   // ns == 1500000000
>+//   int64_t ms = dur / absl::Milliseconds(1);  // ms == 1500
>+//   int64_t sec = dur / absl::Seconds(1);    // sec == 1 (subseconds truncated)
>+//   int64_t min = dur / absl::Minutes(1);    // min == 0
>+//
>+// See the `IDivDuration()` and `FDivDuration()` functions below for details on
>+// how to access the fractional parts of the quotient.
>+//
>+// Alternatively, conversions can be performed using helpers such as
>+// `ToInt64Microseconds()` and `ToDoubleSeconds()`.
>+class Duration {
>+ public:
>+  // Value semantics.
>+  constexpr Duration() : rep_hi_(0), rep_lo_(0) {}  // zero-length duration
>+
>+  // Compound assignment operators.
>+  Duration& operator+=(Duration d);
>+  Duration& operator-=(Duration d);
>+  Duration& operator*=(int64_t r);
>+  Duration& operator*=(double r);
>+  Duration& operator/=(int64_t r);
>+  Duration& operator/=(double r);
>+  Duration& operator%=(Duration rhs);
>+
>+  // Overloads that forward to either the int64_t or double overloads above.
>+  template <typename T>
>+  Duration& operator*=(T r) {
>+    int64_t x = r;
>+    return *this *= x;
>+  }
>+  template <typename T>
>+  Duration& operator/=(T r) {
>+    int64_t x = r;
>+    return *this /= x;
>+  }
>+  Duration& operator*=(float r) { return *this *= static_cast<double>(r); }
>+  Duration& operator/=(float r) { return *this /= static_cast<double>(r); }
>+
>+ private:
>+  friend constexpr int64_t time_internal::GetRepHi(Duration d);
>+  friend constexpr uint32_t time_internal::GetRepLo(Duration d);
>+  friend constexpr Duration time_internal::MakeDuration(int64_t hi,
>+                                                        uint32_t lo);
>+  constexpr Duration(int64_t hi, uint32_t lo) : rep_hi_(hi), rep_lo_(lo) {}
>+  int64_t rep_hi_;
>+  uint32_t rep_lo_;
>+};
>+
>+// Relational Operators
>+constexpr bool operator<(Duration lhs, Duration rhs);
>+constexpr bool operator>(Duration lhs, Duration rhs) { return rhs < lhs; }
>+constexpr bool operator>=(Duration lhs, Duration rhs) { return !(lhs < rhs); }
>+constexpr bool operator<=(Duration lhs, Duration rhs) { return !(rhs < lhs); }
>+constexpr bool operator==(Duration lhs, Duration rhs);
>+constexpr bool operator!=(Duration lhs, Duration rhs) { return !(lhs == rhs); }
>+
>+// Additive Operators
>+constexpr Duration operator-(Duration d);
>+inline Duration operator+(Duration lhs, Duration rhs) { return lhs += rhs; }
>+inline Duration operator-(Duration lhs, Duration rhs) { return lhs -= rhs; }
>+
>+// Multiplicative Operators
>+template <typename T>
>+Duration operator*(Duration lhs, T rhs) {
>+  return lhs *= rhs;
>+}
>+template <typename T>
>+Duration operator*(T lhs, Duration rhs) {
>+  return rhs *= lhs;
>+}
>+template <typename T>
>+Duration operator/(Duration lhs, T rhs) {
>+  return lhs /= rhs;
>+}
>+inline int64_t operator/(Duration lhs, Duration rhs) {
>+  return time_internal::IDivDuration(true, lhs, rhs,
>+                                     &lhs);  // trunc towards zero
>+}
>+inline Duration operator%(Duration lhs, Duration rhs) { return lhs %= rhs; }
>+
>+// IDivDuration()
>+//
>+// Divides a numerator `Duration` by a denominator `Duration`, returning the
>+// quotient and remainder. The remainder always has the same sign as the
>+// numerator. The returned quotient and remainder respect the identity:
>+//
>+//   numerator = denominator * quotient + remainder
>+//
>+// Returned quotients are capped to the range of `int64_t`, with the difference
>+// spilling into the remainder to uphold the above identity. This means that the
>+// remainder returned could differ from the remainder returned by
>+// `Duration::operator%` for huge quotients.
>+//
>+// See also the notes on `InfiniteDuration()` below regarding the behavior of
>+// division involving zero and infinite durations.
>+//
>+// Example:
>+//
>+//   constexpr absl::Duration a =
>+//       absl::Seconds(std::numeric_limits<int64_t>::max());  // big
>+//   constexpr absl::Duration b = absl::Nanoseconds(1);       // small
>+//
>+//   absl::Duration rem = a % b;
>+//   // rem == absl::ZeroDuration()
>+//
>+//   // Here, q would overflow int64_t, so rem accounts for the difference.
>+//   int64_t q = absl::IDivDuration(a, b, &rem);
>+//   // q == std::numeric_limits<int64_t>::max(), rem == a - b * q
>+inline int64_t IDivDuration(Duration num, Duration den, Duration* rem) {
>+  return time_internal::IDivDuration(true, num, den,
>+                                     rem);  // trunc towards zero
>+}
>+
>+// FDivDuration()
>+//
>+// Divides a `Duration` numerator into a fractional number of units of a
>+// `Duration` denominator.
>+//
>+// See also the notes on `InfiniteDuration()` below regarding the behavior of
>+// division involving zero and infinite durations.
>+//
>+// Example:
>+//
>+//   double d = absl::FDivDuration(absl::Milliseconds(1500), absl::Seconds(1));
>+//   // d == 1.5
>+double FDivDuration(Duration num, Duration den);
>+
>+// ZeroDuration()
>+//
>+// Returns a zero-length duration. This function behaves just like the default
>+// constructor, but the name helps make the semantics clear at call sites.
>+constexpr Duration ZeroDuration() { return Duration(); }
>+
>+// AbsDuration()
>+//
>+// Returns the absolute value of a duration.
>+inline Duration AbsDuration(Duration d) {
>+  return (d < ZeroDuration()) ? -d : d;
>+}
>+
>+// Trunc()
>+//
>+// Truncates a duration (toward zero) to a multiple of a non-zero unit.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Nanoseconds(123456789);
>+//   absl::Duration a = absl::Trunc(d, absl::Microseconds(1));  // 123456us
>+Duration Trunc(Duration d, Duration unit);
>+
>+// Floor()
>+//
>+// Floors a duration using the passed duration unit to its largest value not
>+// greater than the duration.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Nanoseconds(123456789);
>+//   absl::Duration b = absl::Floor(d, absl::Microseconds(1));  // 123456us
>+Duration Floor(Duration d, Duration unit);
>+
>+// Ceil()
>+//
>+// Returns the ceiling of a duration using the passed duration unit to its
>+// smallest value not less than the duration.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Nanoseconds(123456789);
>+//   absl::Duration c = absl::Ceil(d, absl::Microseconds(1));   // 123457us
>+Duration Ceil(Duration d, Duration unit);
>+
>+// InfiniteDuration()
>+//
>+// Returns an infinite `Duration`.  To get a `Duration` representing negative
>+// infinity, use `-InfiniteDuration()`.
>+//
>+// Duration arithmetic overflows to +/- infinity and saturates. In general,
>+// arithmetic with `Duration` infinities is similar to IEEE 754 infinities
>+// except where IEEE 754 NaN would be involved, in which case +/-
>+// `InfiniteDuration()` is used in place of a "nan" Duration.
>+//
>+// Examples:
>+//
>+//   constexpr absl::Duration inf = absl::InfiniteDuration();
>+//   const absl::Duration d = ... any finite duration ...
>+//
>+//   inf == inf + inf
>+//   inf == inf + d
>+//   inf == inf - inf
>+//   -inf == d - inf
>+//
>+//   inf == d * 1e100
>+//   inf == inf / 2
>+//   0 == d / inf
>+//   INT64_MAX == inf / d
>+//
>+//   // Division by zero returns infinity, or INT64_MIN/MAX where appropriate.
>+//   inf == d / 0
>+//   INT64_MAX == d / absl::ZeroDuration()
>+//
>+// The examples involving the `/` operator above also apply to `IDivDuration()`
>+// and `FDivDuration()`.
>+constexpr Duration InfiniteDuration();
>+
>+// Nanoseconds()
>+// Microseconds()
>+// Milliseconds()
>+// Seconds()
>+// Minutes()
>+// Hours()
>+//
>+// Factory functions for constructing `Duration` values from an integral number
>+// of the unit indicated by the factory function's name.
>+//
>+// Note: no "Days()" factory function exists because "a day" is ambiguous. Civil
>+// days are not always 24 hours long, and a 24-hour duration often does not
>+// correspond with a civil day. If a 24-hour duration is needed, use
>+// `absl::Hours(24)`.
>+//
>+//
>+// Example:
>+//
>+//   absl::Duration a = absl::Seconds(60);
>+//   absl::Duration b = absl::Minutes(1);  // b == a
>+constexpr Duration Nanoseconds(int64_t n);
>+constexpr Duration Microseconds(int64_t n);
>+constexpr Duration Milliseconds(int64_t n);
>+constexpr Duration Seconds(int64_t n);
>+constexpr Duration Minutes(int64_t n);
>+constexpr Duration Hours(int64_t n);
>+
>+// Factory overloads for constructing `Duration` values from a floating-point
>+// number of the unit indicated by the factory function's name. These functions
>+// exist for convenience, but they are not as efficient as the integral
>+// factories, which should be preferred.
>+//
>+// Example:
>+//   auto a = absl::Seconds(1.5);        // OK
>+//   auto b = absl::Milliseconds(1500);  // BETTER
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Nanoseconds(T n) {
>+  return n * Nanoseconds(1);
>+}
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Microseconds(T n) {
>+  return n * Microseconds(1);
>+}
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Milliseconds(T n) {
>+  return n * Milliseconds(1);
>+}
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Seconds(T n) {
>+  if (n >= 0) {
>+    if (n >= std::numeric_limits<int64_t>::max()) return InfiniteDuration();
>+    return time_internal::MakePosDoubleDuration(n);
>+  } else {
>+    if (n <= std::numeric_limits<int64_t>::min()) return -InfiniteDuration();
>+    return -time_internal::MakePosDoubleDuration(-n);
>+  }
>+}
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Minutes(T n) {
>+  return n * Minutes(1);
>+}
>+template <typename T, time_internal::EnableIfFloat<T> = 0>
>+Duration Hours(T n) {
>+  return n * Hours(1);
>+}
>+
>+// ToInt64Nanoseconds()
>+// ToInt64Microseconds()
>+// ToInt64Milliseconds()
>+// ToInt64Seconds()
>+// ToInt64Minutes()
>+// ToInt64Hours()
>+//
>+// Helper functions that convert a Duration to an integral count of the
>+// indicated unit. These functions are shorthand for the `IDivDuration()`
>+// function above; see its documentation for details about overflow, etc.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Milliseconds(1500);
>+//   int64_t isec = absl::ToInt64Seconds(d);  // isec == 1
>+int64_t ToInt64Nanoseconds(Duration d);
>+int64_t ToInt64Microseconds(Duration d);
>+int64_t ToInt64Milliseconds(Duration d);
>+int64_t ToInt64Seconds(Duration d);
>+int64_t ToInt64Minutes(Duration d);
>+int64_t ToInt64Hours(Duration d);
>+
>+// ToDoubleNanoSeconds()
>+// ToDoubleMicroseconds()
>+// ToDoubleMilliseconds()
>+// ToDoubleSeconds()
>+// ToDoubleMinutes()
>+// ToDoubleHours()
>+//
>+// Helper functions that convert a Duration to a floating point count of the
>+// indicated unit. These functions are shorthand for the `FDivDuration()`
>+// function above; see its documentation for details about overflow, etc.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Milliseconds(1500);
>+//   double dsec = absl::ToDoubleSeconds(d);  // dsec == 1.5
>+double ToDoubleNanoseconds(Duration d);
>+double ToDoubleMicroseconds(Duration d);
>+double ToDoubleMilliseconds(Duration d);
>+double ToDoubleSeconds(Duration d);
>+double ToDoubleMinutes(Duration d);
>+double ToDoubleHours(Duration d);
>+
>+// FromChrono()
>+//
>+// Converts any of the pre-defined std::chrono durations to an absl::Duration.
>+//
>+// Example:
>+//
>+//   std::chrono::milliseconds ms(123);
>+//   absl::Duration d = absl::FromChrono(ms);
>+constexpr Duration FromChrono(const std::chrono::nanoseconds& d);
>+constexpr Duration FromChrono(const std::chrono::microseconds& d);
>+constexpr Duration FromChrono(const std::chrono::milliseconds& d);
>+constexpr Duration FromChrono(const std::chrono::seconds& d);
>+constexpr Duration FromChrono(const std::chrono::minutes& d);
>+constexpr Duration FromChrono(const std::chrono::hours& d);
>+
>+// ToChronoNanoseconds()
>+// ToChronoMicroseconds()
>+// ToChronoMilliseconds()
>+// ToChronoSeconds()
>+// ToChronoMinutes()
>+// ToChronoHours()
>+//
>+// Converts an absl::Duration to any of the pre-defined std::chrono durations.
>+// If overflow would occur, the returned value will saturate at the min/max
>+// chrono duration value instead.
>+//
>+// Example:
>+//
>+//   absl::Duration d = absl::Microseconds(123);
>+//   auto x = absl::ToChronoMicroseconds(d);
>+//   auto y = absl::ToChronoNanoseconds(d);  // x == y
>+//   auto z = absl::ToChronoSeconds(absl::InfiniteDuration());
>+//   // z == std::chrono::seconds::max()
>+std::chrono::nanoseconds ToChronoNanoseconds(Duration d);
>+std::chrono::microseconds ToChronoMicroseconds(Duration d);
>+std::chrono::milliseconds ToChronoMilliseconds(Duration d);
>+std::chrono::seconds ToChronoSeconds(Duration d);
>+std::chrono::minutes ToChronoMinutes(Duration d);
>+std::chrono::hours ToChronoHours(Duration d);
>+
>+// FormatDuration()
>+//
>+// Returns a std::string representing the duration in the form "72h3m0.5s".
>+// Returns "inf" or "-inf" for +/- `InfiniteDuration()`.
>+std::string FormatDuration(Duration d);
>+
>+// Output stream operator.
>+inline std::ostream& operator<<(std::ostream& os, Duration d) {
>+  return os << FormatDuration(d);
>+}
>+
>+// ParseDuration()
>+//
>+// Parses a duration std::string consisting of a possibly signed sequence of
>+// decimal numbers, each with an optional fractional part and a unit
>+// suffix.  The valid suffixes are "ns", "us" "ms", "s", "m", and "h".
>+// Simple examples include "300ms", "-1.5h", and "2h45m".  Parses "0" as
>+// `ZeroDuration()`.  Parses "inf" and "-inf" as +/- `InfiniteDuration()`.
>+bool ParseDuration(const std::string& dur_string, Duration* d);
>+
>+// Support for flag values of type Duration. Duration flags must be specified
>+// in a format that is valid input for absl::ParseDuration().
>+bool ParseFlag(const std::string& text, Duration* dst, std::string* error);
>+std::string UnparseFlag(Duration d);
>+
>+// Time
>+//
>+// An `absl::Time` represents a specific instant in time. Arithmetic operators
>+// are provided for naturally expressing time calculations. Instances are
>+// created using `absl::Now()` and the `absl::From*()` factory functions that
>+// accept the gamut of other time representations. Formatting and parsing
>+// functions are provided for conversion to and from strings.  `absl::Time`
>+// should be passed by value rather than const reference.
>+//
>+// `absl::Time` assumes there are 60 seconds in a minute, which means the
>+// underlying time scales must be "smeared" to eliminate leap seconds.
>+// See https://developers.google.com/time/smear.
>+//
>+// Even though `absl::Time` supports a wide range of timestamps, exercise
>+// caution when using values in the distant past. `absl::Time` uses the
>+// Proleptic Gregorian calendar, which extends the Gregorian calendar backward
>+// to dates before its introduction in 1582.
>+// See https://en.wikipedia.org/wiki/Proleptic_Gregorian_calendar
>+// for more information. Use the ICU calendar classes to convert a date in
>+// some other calendar (http://userguide.icu-project.org/datetime/calendar).
>+//
>+// Similarly, standardized time zones are a reasonably recent innovation, with
>+// the Greenwich prime meridian being established in 1884. The TZ database
>+// itself does not profess accurate offsets for timestamps prior to 1970. The
>+// breakdown of future timestamps is subject to the whim of regional
>+// governments.
>+//
>+// The `absl::Time` class represents an instant in time as a count of clock
>+// ticks of some granularity (resolution) from some starting point (epoch).
>+//
>+//
>+// `absl::Time` uses a resolution that is high enough to avoid loss in
>+// precision, and a range that is wide enough to avoid overflow, when
>+// converting between tick counts in most Google time scales (i.e., precision
>+// of at least one nanosecond, and range +/-100 billion years).  Conversions
>+// between the time scales are performed by truncating (towards negative
>+// infinity) to the nearest representable point.
>+//
>+// Examples:
>+//
>+//   absl::Time t1 = ...;
>+//   absl::Time t2 = t1 + absl::Minutes(2);
>+//   absl::Duration d = t2 - t1;  // == absl::Minutes(2)
>+//   absl::Time::Breakdown bd = t1.In(absl::LocalTimeZone());
>+//
>+class Time {
>+ public:
>+  // Value semantics.
>+
>+  // Returns the Unix epoch.  However, those reading your code may not know
>+  // or expect the Unix epoch as the default value, so make your code more
>+  // readable by explicitly initializing all instances before use.
>+  //
>+  // Example:
>+  //   absl::Time t = absl::UnixEpoch();
>+  //   absl::Time t = absl::Now();
>+  //   absl::Time t = absl::TimeFromTimeval(tv);
>+  //   absl::Time t = absl::InfinitePast();
>+  constexpr Time() {}
>+
>+  // Assignment operators.
>+  Time& operator+=(Duration d) {
>+    rep_ += d;
>+    return *this;
>+  }
>+  Time& operator-=(Duration d) {
>+    rep_ -= d;
>+    return *this;
>+  }
>+
>+  // Time::Breakdown
>+  //
>+  // The calendar and wall-clock (aka "civil time") components of an
>+  // `absl::Time` in a certain `absl::TimeZone`. This struct is not
>+  // intended to represent an instant in time. So, rather than passing
>+  // a `Time::Breakdown` to a function, pass an `absl::Time` and an
>+  // `absl::TimeZone`.
>+  struct Breakdown {
>+    int64_t year;          // year (e.g., 2013)
>+    int month;           // month of year [1:12]
>+    int day;             // day of month [1:31]
>+    int hour;            // hour of day [0:23]
>+    int minute;          // minute of hour [0:59]
>+    int second;          // second of minute [0:59]
>+    Duration subsecond;  // [Seconds(0):Seconds(1)) if finite
>+    int weekday;         // 1==Mon, ..., 7=Sun
>+    int yearday;         // day of year [1:366]
>+
>+    // Note: The following fields exist for backward compatibility
>+    // with older APIs.  Accessing these fields directly is a sign of
>+    // imprudent logic in the calling code.  Modern time-related code
>+    // should only access this data indirectly by way of FormatTime().
>+    // These fields are undefined for InfiniteFuture() and InfinitePast().
>+    int offset;             // seconds east of UTC
>+    bool is_dst;            // is offset non-standard?
>+    const char* zone_abbr;  // time-zone abbreviation (e.g., "PST")
>+  };
>+
>+  // Time::In()
>+  //
>+  // Returns the breakdown of this instant in the given TimeZone.
>+  Breakdown In(TimeZone tz) const;
>+
>+ private:
>+  friend constexpr Time time_internal::FromUnixDuration(Duration d);
>+  friend constexpr Duration time_internal::ToUnixDuration(Time t);
>+  friend constexpr bool operator<(Time lhs, Time rhs);
>+  friend constexpr bool operator==(Time lhs, Time rhs);
>+  friend Duration operator-(Time lhs, Time rhs);
>+  friend constexpr Time UniversalEpoch();
>+  friend constexpr Time InfiniteFuture();
>+  friend constexpr Time InfinitePast();
>+  constexpr explicit Time(Duration rep) : rep_(rep) {}
>+  Duration rep_;
>+};
>+
>+// Relational Operators
>+constexpr bool operator<(Time lhs, Time rhs) { return lhs.rep_ < rhs.rep_; }
>+constexpr bool operator>(Time lhs, Time rhs) { return rhs < lhs; }
>+constexpr bool operator>=(Time lhs, Time rhs) { return !(lhs < rhs); }
>+constexpr bool operator<=(Time lhs, Time rhs) { return !(rhs < lhs); }
>+constexpr bool operator==(Time lhs, Time rhs) { return lhs.rep_ == rhs.rep_; }
>+constexpr bool operator!=(Time lhs, Time rhs) { return !(lhs == rhs); }
>+
>+// Additive Operators
>+inline Time operator+(Time lhs, Duration rhs) { return lhs += rhs; }
>+inline Time operator+(Duration lhs, Time rhs) { return rhs += lhs; }
>+inline Time operator-(Time lhs, Duration rhs) { return lhs -= rhs; }
>+inline Duration operator-(Time lhs, Time rhs) { return lhs.rep_ - rhs.rep_; }
>+
>+// UnixEpoch()
>+//
>+// Returns the `absl::Time` representing "1970-01-01 00:00:00.0 +0000".
>+constexpr Time UnixEpoch() { return Time(); }
>+
>+// UniversalEpoch()
>+//
>+// Returns the `absl::Time` representing "0001-01-01 00:00:00.0 +0000", the
>+// epoch of the ICU Universal Time Scale.
>+constexpr Time UniversalEpoch() {
>+  // 719162 is the number of days from 0001-01-01 to 1970-01-01,
>+  // assuming the Gregorian calendar.
>+  return Time(time_internal::MakeDuration(-24 * 719162 * int64_t{3600}, 0U));
>+}
>+
>+// InfiniteFuture()
>+//
>+// Returns an `absl::Time` that is infinitely far in the future.
>+constexpr Time InfiniteFuture() {
>+  return Time(
>+      time_internal::MakeDuration(std::numeric_limits<int64_t>::max(), ~0U));
>+}
>+
>+// InfinitePast()
>+//
>+// Returns an `absl::Time` that is infinitely far in the past.
>+constexpr Time InfinitePast() {
>+  return Time(
>+      time_internal::MakeDuration(std::numeric_limits<int64_t>::min(), ~0U));
>+}
>+
>+// TimeConversion
>+//
>+// An `absl::TimeConversion` represents the conversion of year, month, day,
>+// hour, minute, and second values (i.e., a civil time), in a particular
>+// `absl::TimeZone`, to a time instant (an absolute time), as returned by
>+// `absl::ConvertDateTime()`. (Subseconds must be handled separately.)
>+//
>+// It is possible, though, for a caller to try to convert values that
>+// do not represent an actual or unique instant in time (due to a shift
>+// in UTC offset in the `absl::TimeZone`, which results in a discontinuity in
>+// the civil-time components). For example, a daylight-saving-time
>+// transition skips or repeats civil times---in the United States, March
>+// 13, 2011 02:15 never occurred, while November 6, 2011 01:15 occurred
>+// twice---so requests for such times are not well-defined.
>+//
>+// To account for these possibilities, `absl::TimeConversion` is richer
>+// than just a single `absl::Time`. When the civil time is skipped or
>+// repeated, `absl::ConvertDateTime()` returns times calculated using the
>+// pre-transition and post-transition UTC offsets, plus the transition
>+// time itself.
>+//
>+// Examples:
>+//
>+//   absl::TimeZone lax;
>+//   if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
>+//
>+//   // A unique civil time
>+//   absl::TimeConversion jan01 =
>+//       absl::ConvertDateTime(2011, 1, 1, 0, 0, 0, lax);
>+//   // jan01.kind == TimeConversion::UNIQUE
>+//   // jan01.pre    is 2011/01/01 00:00:00 -0800
>+//   // jan01.trans  is 2011/01/01 00:00:00 -0800
>+//   // jan01.post   is 2011/01/01 00:00:00 -0800
>+//
>+//   // A Spring DST transition, when there is a gap in civil time
>+//   absl::TimeConversion mar13 =
>+//       absl::ConvertDateTime(2011, 3, 13, 2, 15, 0, lax);
>+//   // mar13.kind == TimeConversion::SKIPPED
>+//   // mar13.pre   is 2011/03/13 03:15:00 -0700
>+//   // mar13.trans is 2011/03/13 03:00:00 -0700
>+//   // mar13.post  is 2011/03/13 01:15:00 -0800
>+//
>+//   // A Fall DST transition, when civil times are repeated
>+//   absl::TimeConversion nov06 =
>+//       absl::ConvertDateTime(2011, 11, 6, 1, 15, 0, lax);
>+//   // nov06.kind == TimeConversion::REPEATED
>+//   // nov06.pre   is 2011/11/06 01:15:00 -0700
>+//   // nov06.trans is 2011/11/06 01:00:00 -0800
>+//   // nov06.post  is 2011/11/06 01:15:00 -0800
>+//
>+// The input month, day, hour, minute, and second values can also be
>+// outside of their valid ranges, in which case they will be "normalized"
>+// during the conversion.
>+//
>+// Example:
>+//
>+//   // "October 32" normalizes to "November 1".
>+//   absl::TimeZone tz = absl::LocalTimeZone();
>+//   absl::TimeConversion tc =
>+//       absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, tz);
>+//   // tc.kind == TimeConversion::UNIQUE && tc.normalized == true
>+//   // tc.pre.In(tz).month == 11 && tc.pre.In(tz).day == 1
>+struct TimeConversion {
>+  Time pre;    // time calculated using the pre-transition offset
>+  Time trans;  // when the civil-time discontinuity occurred
>+  Time post;   // time calculated using the post-transition offset
>+
>+  enum Kind {
>+    UNIQUE,    // the civil time was singular (pre == trans == post)
>+    SKIPPED,   // the civil time did not exist
>+    REPEATED,  // the civil time was ambiguous
>+  };
>+  Kind kind;
>+
>+  bool normalized;  // input values were outside their valid ranges
>+};
>+
>+// ConvertDateTime()
>+//
>+// The full generality of a civil time to absl::Time conversion.
>+TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour,
>+                               int min, int sec, TimeZone tz);
>+
>+// FromDateTime()
>+//
>+// A convenience wrapper for `absl::ConvertDateTime()` that simply returns the
>+// "pre" `absl::Time`.  That is, the unique result, or the instant that
>+// is correct using the pre-transition offset (as if the transition
>+// never happened). This is typically the answer that humans expected when
>+// faced with non-unique times, such as near daylight-saving time transitions.
>+//
>+// Example:
>+//
>+//   absl::TimeZone seattle;
>+//   if (!absl::LoadTimeZone("America/Los_Angeles", &seattle)) { ... }
>+//   absl::Time t =  absl::FromDateTime(2017, 9, 26, 9, 30, 0, seattle);
>+Time FromDateTime(int64_t year, int mon, int day, int hour, int min, int sec,
>+                  TimeZone tz);
>+
>+// FromTM()
>+//
>+// Converts the `tm_year`, `tm_mon`, `tm_mday`, `tm_hour`, `tm_min`, and
>+// `tm_sec` fields to an `absl::Time` using the given time zone. See ctime(3)
>+// for a description of the expected values of the tm fields. IFF the indicated
>+// time instant is not unique (see `absl::ConvertDateTime()` above), the
>+// `tm_isdst` field is consulted to select the desired instant (`tm_isdst` > 0
>+// means DST, `tm_isdst` == 0 means no DST, `tm_isdst` < 0 means use the default
>+// like `absl::FromDateTime()`).
>+Time FromTM(const struct tm& tm, TimeZone tz);
>+
>+// ToTM()
>+//
>+// Converts the given `absl::Time` to a struct tm using the given time zone.
>+// See ctime(3) for a description of the values of the tm fields.
>+struct tm ToTM(Time t, TimeZone tz);
>+
>+// FromUnixNanos()
>+// FromUnixMicros()
>+// FromUnixMillis()
>+// FromUnixSeconds()
>+// FromTimeT()
>+// FromUDate()
>+// FromUniversal()
>+//
>+// Creates an `absl::Time` from a variety of other representations.
>+constexpr Time FromUnixNanos(int64_t ns);
>+constexpr Time FromUnixMicros(int64_t us);
>+constexpr Time FromUnixMillis(int64_t ms);
>+constexpr Time FromUnixSeconds(int64_t s);
>+constexpr Time FromTimeT(time_t t);
>+Time FromUDate(double udate);
>+Time FromUniversal(int64_t universal);
>+
>+// ToUnixNanos()
>+// ToUnixMicros()
>+// ToUnixMillis()
>+// ToUnixSeconds()
>+// ToTimeT()
>+// ToUDate()
>+// ToUniversal()
>+//
>+// Converts an `absl::Time` to a variety of other representations.  Note that
>+// these operations round down toward negative infinity where necessary to
>+// adjust to the resolution of the result type.  Beware of possible time_t
>+// over/underflow in ToTime{T,val,spec}() on 32-bit platforms.
>+int64_t ToUnixNanos(Time t);
>+int64_t ToUnixMicros(Time t);
>+int64_t ToUnixMillis(Time t);
>+int64_t ToUnixSeconds(Time t);
>+time_t ToTimeT(Time t);
>+double ToUDate(Time t);
>+int64_t ToUniversal(Time t);
>+
>+// DurationFromTimespec()
>+// DurationFromTimeval()
>+// ToTimespec()
>+// ToTimeval()
>+// TimeFromTimespec()
>+// TimeFromTimeval()
>+// ToTimespec()
>+// ToTimeval()
>+//
>+// Some APIs use a timespec or a timeval as a Duration (e.g., nanosleep(2)
>+// and select(2)), while others use them as a Time (e.g. clock_gettime(2)
>+// and gettimeofday(2)), so conversion functions are provided for both cases.
>+// The "to timespec/val" direction is easily handled via overloading, but
>+// for "from timespec/val" the desired type is part of the function name.
>+Duration DurationFromTimespec(timespec ts);
>+Duration DurationFromTimeval(timeval tv);
>+timespec ToTimespec(Duration d);
>+timeval ToTimeval(Duration d);
>+Time TimeFromTimespec(timespec ts);
>+Time TimeFromTimeval(timeval tv);
>+timespec ToTimespec(Time t);
>+timeval ToTimeval(Time t);
>+
>+// FromChrono()
>+//
>+// Converts a std::chrono::system_clock::time_point to an absl::Time.
>+//
>+// Example:
>+//
>+//   auto tp = std::chrono::system_clock::from_time_t(123);
>+//   absl::Time t = absl::FromChrono(tp);
>+//   // t == absl::FromTimeT(123)
>+Time FromChrono(const std::chrono::system_clock::time_point& tp);
>+
>+// ToChronoTime()
>+//
>+// Converts an absl::Time to a std::chrono::system_clock::time_point. If
>+// overflow would occur, the returned value will saturate at the min/max time
>+// point value instead.
>+//
>+// Example:
>+//
>+//   absl::Time t = absl::FromTimeT(123);
>+//   auto tp = absl::ToChronoTime(t);
>+//   // tp == std::chrono::system_clock::from_time_t(123);
>+std::chrono::system_clock::time_point ToChronoTime(Time);
>+
>+// RFC3339_full
>+// RFC3339_sec
>+//
>+// FormatTime()/ParseTime() format specifiers for RFC3339 date/time strings,
>+// with trailing zeros trimmed or with fractional seconds omitted altogether.
>+//
>+// Note that RFC3339_sec[] matches an ISO 8601 extended format for date
>+// and time with UTC offset.
>+extern const char RFC3339_full[];  // %Y-%m-%dT%H:%M:%E*S%Ez
>+extern const char RFC3339_sec[];   // %Y-%m-%dT%H:%M:%S%Ez
>+
>+// RFC1123_full
>+// RFC1123_no_wday
>+//
>+// FormatTime()/ParseTime() format specifiers for RFC1123 date/time strings.
>+extern const char RFC1123_full[];     // %a, %d %b %E4Y %H:%M:%S %z
>+extern const char RFC1123_no_wday[];  // %d %b %E4Y %H:%M:%S %z
>+
>+// FormatTime()
>+//
>+// Formats the given `absl::Time` in the `absl::TimeZone` according to the
>+// provided format std::string. Uses strftime()-like formatting options, with
>+// the following extensions:
>+//
>+//   - %Ez  - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm)
>+//   - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss)
>+//   - %E#S - Seconds with # digits of fractional precision
>+//   - %E*S - Seconds with full fractional precision (a literal '*')
>+//   - %E#f - Fractional seconds with # digits of precision
>+//   - %E*f - Fractional seconds with full precision (a literal '*')
>+//   - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999)
>+//
>+// Note that %E0S behaves like %S, and %E0f produces no characters.  In
>+// contrast %E*f always produces at least one digit, which may be '0'.
>+//
>+// Note that %Y produces as many characters as it takes to fully render the
>+// year.  A year outside of [-999:9999] when formatted with %E4Y will produce
>+// more than four characters, just like %Y.
>+//
>+// We recommend that format strings include the UTC offset (%z, %Ez, or %E*z)
>+// so that the result uniquely identifies a time instant.
>+//
>+// Example:
>+//
>+//   absl::TimeZone lax;
>+//   if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
>+//   absl::Time t = absl::FromDateTime(2013, 1, 2, 3, 4, 5, lax);
>+//
>+//   std::string f = absl::FormatTime("%H:%M:%S", t, lax);  // "03:04:05"
>+//   f = absl::FormatTime("%H:%M:%E3S", t, lax);  // "03:04:05.000"
>+//
>+// Note: If the given `absl::Time` is `absl::InfiniteFuture()`, the returned
>+// std::string will be exactly "infinite-future". If the given `absl::Time` is
>+// `absl::InfinitePast()`, the returned std::string will be exactly "infinite-past".
>+// In both cases the given format std::string and `absl::TimeZone` are ignored.
>+//
>+std::string FormatTime(const std::string& format, Time t, TimeZone tz);
>+
>+// Convenience functions that format the given time using the RFC3339_full
>+// format.  The first overload uses the provided TimeZone, while the second
>+// uses LocalTimeZone().
>+std::string FormatTime(Time t, TimeZone tz);
>+std::string FormatTime(Time t);
>+
>+// Output stream operator.
>+inline std::ostream& operator<<(std::ostream& os, Time t) {
>+  return os << FormatTime(t);
>+}
>+
>+// ParseTime()
>+//
>+// Parses an input std::string according to the provided format std::string and
>+// returns the corresponding `absl::Time`. Uses strftime()-like formatting
>+// options, with the same extensions as FormatTime(), but with the
>+// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f.  %Ez
>+// and %E*z also accept the same inputs.
>+//
>+// %Y consumes as many numeric characters as it can, so the matching data
>+// should always be terminated with a non-numeric.  %E4Y always consumes
>+// exactly four characters, including any sign.
>+//
>+// Unspecified fields are taken from the default date and time of ...
>+//
>+//   "1970-01-01 00:00:00.0 +0000"
>+//
>+// For example, parsing a std::string of "15:45" (%H:%M) will return an absl::Time
>+// that represents "1970-01-01 15:45:00.0 +0000".
>+//
>+// Note that since ParseTime() returns time instants, it makes the most sense
>+// to parse fully-specified date/time strings that include a UTC offset (%z,
>+// %Ez, or %E*z).
>+//
>+// Note also that `absl::ParseTime()` only heeds the fields year, month, day,
>+// hour, minute, (fractional) second, and UTC offset.  Other fields, like
>+// weekday (%a or %A), while parsed for syntactic validity, are ignored
>+// in the conversion.
>+//
>+// Date and time fields that are out-of-range will be treated as errors
>+// rather than normalizing them like `absl::FromDateTime()` does.  For example,
>+// it is an error to parse the date "Oct 32, 2013" because 32 is out of range.
>+//
>+// A leap second of ":60" is normalized to ":00" of the following minute
>+// with fractional seconds discarded.  The following table shows how the
>+// given seconds and subseconds will be parsed:
>+//
>+//   "59.x" -> 59.x  // exact
>+//   "60.x" -> 00.0  // normalized
>+//   "00.x" -> 00.x  // exact
>+//
>+// Errors are indicated by returning false and assigning an error message
>+// to the "err" out param if it is non-null.
>+//
>+// Note: If the input std::string is exactly "infinite-future", the returned
>+// `absl::Time` will be `absl::InfiniteFuture()` and `true` will be returned.
>+// If the input std::string is "infinite-past", the returned `absl::Time` will be
>+// `absl::InfinitePast()` and `true` will be returned.
>+//
>+bool ParseTime(const std::string& format, const std::string& input, Time* time,
>+               std::string* err);
>+
>+// Like ParseTime() above, but if the format std::string does not contain a UTC
>+// offset specification (%z/%Ez/%E*z) then the input is interpreted in the
>+// given TimeZone.  This means that the input, by itself, does not identify a
>+// unique instant.  Being time-zone dependent, it also admits the possibility
>+// of ambiguity or non-existence, in which case the "pre" time (as defined
>+// for ConvertDateTime()) is returned.  For these reasons we recommend that
>+// all date/time strings include a UTC offset so they're context independent.
>+bool ParseTime(const std::string& format, const std::string& input, TimeZone tz,
>+               Time* time, std::string* err);
>+
>+// Support for flag values of type Time. Time flags must be specified in a
>+// format that matches absl::RFC3339_full. For example:
>+//
>+//   --start_time=2016-01-02T03:04:05.678+08:00
>+//
>+// Note: A UTC offset (or 'Z' indicating a zero-offset from UTC) is required.
>+//
>+// Additionally, if you'd like to specify a time as a count of
>+// seconds/milliseconds/etc from the Unix epoch, use an absl::Duration flag
>+// and add that duration to absl::UnixEpoch() to get an absl::Time.
>+bool ParseFlag(const std::string& text, Time* t, std::string* error);
>+std::string UnparseFlag(Time t);
>+
>+// TimeZone
>+//
>+// The `absl::TimeZone` is an opaque, small, value-type class representing a
>+// geo-political region within which particular rules are used for converting
>+// between absolute and civil times (see https://git.io/v59Ly). `absl::TimeZone`
>+// values are named using the TZ identifiers from the IANA Time Zone Database,
>+// such as "America/Los_Angeles" or "Australia/Sydney". `absl::TimeZone` values
>+// are created from factory functions such as `absl::LoadTimeZone()`. Note:
>+// strings like "PST" and "EDT" are not valid TZ identifiers. Prefer to pass by
>+// value rather than const reference.
>+//
>+// For more on the fundamental concepts of time zones, absolute times, and civil
>+// times, see https://github.com/google/cctz#fundamental-concepts
>+//
>+// Examples:
>+//
>+//   absl::TimeZone utc = absl::UTCTimeZone();
>+//   absl::TimeZone pst = absl::FixedTimeZone(-8 * 60 * 60);
>+//   absl::TimeZone loc = absl::LocalTimeZone();
>+//   absl::TimeZone lax;
>+//   if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { ... }
>+//
>+// See also:
>+// - https://github.com/google/cctz
>+// - http://www.iana.org/time-zones
>+// - http://en.wikipedia.org/wiki/Zoneinfo
>+class TimeZone {
>+ public:
>+  explicit TimeZone(time_internal::cctz::time_zone tz) : cz_(tz) {}
>+  TimeZone() = default;  // UTC, but prefer UTCTimeZone() to be explicit.
>+  TimeZone(const TimeZone&) = default;
>+  TimeZone& operator=(const TimeZone&) = default;
>+
>+  explicit operator time_internal::cctz::time_zone() const { return cz_; }
>+
>+  std::string name() const { return cz_.name(); }
>+
>+ private:
>+  friend bool operator==(TimeZone a, TimeZone b) { return a.cz_ == b.cz_; }
>+  friend bool operator!=(TimeZone a, TimeZone b) { return a.cz_ != b.cz_; }
>+  friend std::ostream& operator<<(std::ostream& os, TimeZone tz) {
>+    return os << tz.name();
>+  }
>+
>+  time_internal::cctz::time_zone cz_;
>+};
>+
>+// LoadTimeZone()
>+//
>+// Loads the named zone. May perform I/O on the initial load of the named
>+// zone. If the name is invalid, or some other kind of error occurs, returns
>+// `false` and `*tz` is set to the UTC time zone.
>+inline bool LoadTimeZone(const std::string& name, TimeZone* tz) {
>+  if (name == "localtime") {
>+    *tz = TimeZone(time_internal::cctz::local_time_zone());
>+    return true;
>+  }
>+  time_internal::cctz::time_zone cz;
>+  const bool b = time_internal::cctz::load_time_zone(name, &cz);
>+  *tz = TimeZone(cz);
>+  return b;
>+}
>+
>+// FixedTimeZone()
>+//
>+// Returns a TimeZone that is a fixed offset (seconds east) from UTC.
>+// Note: If the absolute value of the offset is greater than 24 hours
>+// you'll get UTC (i.e., no offset) instead.
>+inline TimeZone FixedTimeZone(int seconds) {
>+  return TimeZone(
>+      time_internal::cctz::fixed_time_zone(std::chrono::seconds(seconds)));
>+}
>+
>+// UTCTimeZone()
>+//
>+// Convenience method returning the UTC time zone.
>+inline TimeZone UTCTimeZone() {
>+  return TimeZone(time_internal::cctz::utc_time_zone());
>+}
>+
>+// LocalTimeZone()
>+//
>+// Convenience method returning the local time zone, or UTC if there is
>+// no configured local zone.  Warning: Be wary of using LocalTimeZone(),
>+// and particularly so in a server process, as the zone configured for the
>+// local machine should be irrelevant.  Prefer an explicit zone name.
>+inline TimeZone LocalTimeZone() {
>+  return TimeZone(time_internal::cctz::local_time_zone());
>+}
>+
>+// ============================================================================
>+// Implementation Details Follow
>+// ============================================================================
>+
>+namespace time_internal {
>+
>+// Creates a Duration with a given representation.
>+// REQUIRES: hi,lo is a valid representation of a Duration as specified
>+// in time/duration.cc.
>+constexpr Duration MakeDuration(int64_t hi, uint32_t lo = 0) {
>+  return Duration(hi, lo);
>+}
>+
>+constexpr Duration MakeDuration(int64_t hi, int64_t lo) {
>+  return MakeDuration(hi, static_cast<uint32_t>(lo));
>+}
>+
>+// Make a Duration value from a floating-point number, as long as that number
>+// is in the range [ 0 .. numeric_limits<int64_t>::max ), that is, as long as
>+// it's positive and can be converted to int64_t without risk of UB.
>+inline Duration MakePosDoubleDuration(double n) {
>+  const int64_t int_secs = static_cast<int64_t>(n);
>+  const uint32_t ticks =
>+      static_cast<uint32_t>((n - int_secs) * kTicksPerSecond + 0.5);
>+  return ticks < kTicksPerSecond
>+             ? MakeDuration(int_secs, ticks)
>+             : MakeDuration(int_secs + 1, ticks - kTicksPerSecond);
>+}
>+
>+// Creates a normalized Duration from an almost-normalized (sec,ticks)
>+// pair. sec may be positive or negative.  ticks must be in the range
>+// -kTicksPerSecond < *ticks < kTicksPerSecond.  If ticks is negative it
>+// will be normalized to a positive value in the resulting Duration.
>+constexpr Duration MakeNormalizedDuration(int64_t sec, int64_t ticks) {
>+  return (ticks < 0) ? MakeDuration(sec - 1, ticks + kTicksPerSecond)
>+                     : MakeDuration(sec, ticks);
>+}
>+// Provide access to the Duration representation.
>+constexpr int64_t GetRepHi(Duration d) { return d.rep_hi_; }
>+constexpr uint32_t GetRepLo(Duration d) { return d.rep_lo_; }
>+constexpr bool IsInfiniteDuration(Duration d) { return GetRepLo(d) == ~0U; }
>+
>+// Returns an infinite Duration with the opposite sign.
>+// REQUIRES: IsInfiniteDuration(d)
>+constexpr Duration OppositeInfinity(Duration d) {
>+  return GetRepHi(d) < 0
>+             ? MakeDuration(std::numeric_limits<int64_t>::max(), ~0U)
>+             : MakeDuration(std::numeric_limits<int64_t>::min(), ~0U);
>+}
>+
>+// Returns (-n)-1 (equivalently -(n+1)) without avoidable overflow.
>+constexpr int64_t NegateAndSubtractOne(int64_t n) {
>+  // Note: Good compilers will optimize this expression to ~n when using
>+  // a two's-complement representation (which is required for int64_t).
>+  return (n < 0) ? -(n + 1) : (-n) - 1;
>+}
>+
>+// Map between a Time and a Duration since the Unix epoch.  Note that these
>+// functions depend on the above mentioned choice of the Unix epoch for the
>+// Time representation (and both need to be Time friends).  Without this
>+// knowledge, we would need to add-in/subtract-out UnixEpoch() respectively.
>+constexpr Time FromUnixDuration(Duration d) { return Time(d); }
>+constexpr Duration ToUnixDuration(Time t) { return t.rep_; }
>+
>+template <std::intmax_t N>
>+constexpr Duration FromInt64(int64_t v, std::ratio<1, N>) {
>+  static_assert(0 < N && N <= 1000 * 1000 * 1000, "Unsupported ratio");
>+  // Subsecond ratios cannot overflow.
>+  return MakeNormalizedDuration(
>+      v / N, v % N * kTicksPerNanosecond * 1000 * 1000 * 1000 / N);
>+}
>+constexpr Duration FromInt64(int64_t v, std::ratio<60>) {
>+  return (v <= std::numeric_limits<int64_t>::max() / 60 &&
>+          v >= std::numeric_limits<int64_t>::min() / 60)
>+             ? MakeDuration(v * 60)
>+             : v > 0 ? InfiniteDuration() : -InfiniteDuration();
>+}
>+constexpr Duration FromInt64(int64_t v, std::ratio<3600>) {
>+  return (v <= std::numeric_limits<int64_t>::max() / 3600 &&
>+          v >= std::numeric_limits<int64_t>::min() / 3600)
>+             ? MakeDuration(v * 3600)
>+             : v > 0 ? InfiniteDuration() : -InfiniteDuration();
>+}
>+
>+// IsValidRep64<T>(0) is true if the expression `int64_t{std::declval<T>()}` is
>+// valid. That is, if a T can be assigned to an int64_t without narrowing.
>+template <typename T>
>+constexpr auto IsValidRep64(int)
>+    -> decltype(int64_t{std::declval<T>()}, bool()) {
>+  return true;
>+}
>+template <typename T>
>+constexpr auto IsValidRep64(char) -> bool {
>+  return false;
>+}
>+
>+// Converts a std::chrono::duration to an absl::Duration.
>+template <typename Rep, typename Period>
>+constexpr Duration FromChrono(const std::chrono::duration<Rep, Period>& d) {
>+  static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid");
>+  return FromInt64(int64_t{d.count()}, Period{});
>+}
>+
>+template <typename Ratio>
>+int64_t ToInt64(Duration d, Ratio) {
>+  // Note: This may be used on MSVC, which may have a system_clock period of
>+  // std::ratio<1, 10 * 1000 * 1000>
>+  return ToInt64Seconds(d * Ratio::den / Ratio::num);
>+}
>+// Fastpath implementations for the 6 common duration units.
>+inline int64_t ToInt64(Duration d, std::nano) {
>+  return ToInt64Nanoseconds(d);
>+}
>+inline int64_t ToInt64(Duration d, std::micro) {
>+  return ToInt64Microseconds(d);
>+}
>+inline int64_t ToInt64(Duration d, std::milli) {
>+  return ToInt64Milliseconds(d);
>+}
>+inline int64_t ToInt64(Duration d, std::ratio<1>) {
>+  return ToInt64Seconds(d);
>+}
>+inline int64_t ToInt64(Duration d, std::ratio<60>) {
>+  return ToInt64Minutes(d);
>+}
>+inline int64_t ToInt64(Duration d, std::ratio<3600>) {
>+  return ToInt64Hours(d);
>+}
>+
>+// Converts an absl::Duration to a chrono duration of type T.
>+template <typename T>
>+T ToChronoDuration(Duration d) {
>+  using Rep = typename T::rep;
>+  using Period = typename T::period;
>+  static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid");
>+  if (time_internal::IsInfiniteDuration(d))
>+    return d < ZeroDuration() ? T::min() : T::max();
>+  const auto v = ToInt64(d, Period{});
>+  if (v > std::numeric_limits<Rep>::max()) return T::max();
>+  if (v < std::numeric_limits<Rep>::min()) return T::min();
>+  return T{v};
>+}
>+
>+}  // namespace time_internal
>+constexpr Duration Nanoseconds(int64_t n) {
>+  return time_internal::FromInt64(n, std::nano{});
>+}
>+constexpr Duration Microseconds(int64_t n) {
>+  return time_internal::FromInt64(n, std::micro{});
>+}
>+constexpr Duration Milliseconds(int64_t n) {
>+  return time_internal::FromInt64(n, std::milli{});
>+}
>+constexpr Duration Seconds(int64_t n) {
>+  return time_internal::FromInt64(n, std::ratio<1>{});
>+}
>+constexpr Duration Minutes(int64_t n) {
>+  return time_internal::FromInt64(n, std::ratio<60>{});
>+}
>+constexpr Duration Hours(int64_t n) {
>+  return time_internal::FromInt64(n, std::ratio<3600>{});
>+}
>+
>+constexpr bool operator<(Duration lhs, Duration rhs) {
>+  return time_internal::GetRepHi(lhs) != time_internal::GetRepHi(rhs)
>+             ? time_internal::GetRepHi(lhs) < time_internal::GetRepHi(rhs)
>+             : time_internal::GetRepHi(lhs) == std::numeric_limits<int64_t>::min()
>+                   ? time_internal::GetRepLo(lhs) + 1 <
>+                         time_internal::GetRepLo(rhs) + 1
>+                   : time_internal::GetRepLo(lhs) <
>+                         time_internal::GetRepLo(rhs);
>+}
>+
>+constexpr bool operator==(Duration lhs, Duration rhs) {
>+  return time_internal::GetRepHi(lhs) == time_internal::GetRepHi(rhs) &&
>+         time_internal::GetRepLo(lhs) == time_internal::GetRepLo(rhs);
>+}
>+
>+constexpr Duration operator-(Duration d) {
>+  // This is a little interesting because of the special cases.
>+  //
>+  // If rep_lo_ is zero, we have it easy; it's safe to negate rep_hi_, we're
>+  // dealing with an integral number of seconds, and the only special case is
>+  // the maximum negative finite duration, which can't be negated.
>+  //
>+  // Infinities stay infinite, and just change direction.
>+  //
>+  // Finally we're in the case where rep_lo_ is non-zero, and we can borrow
>+  // a second's worth of ticks and avoid overflow (as negating int64_t-min + 1
>+  // is safe).
>+  return time_internal::GetRepLo(d) == 0
>+             ? time_internal::GetRepHi(d) == std::numeric_limits<int64_t>::min()
>+                   ? InfiniteDuration()
>+                   : time_internal::MakeDuration(-time_internal::GetRepHi(d))
>+             : time_internal::IsInfiniteDuration(d)
>+                   ? time_internal::OppositeInfinity(d)
>+                   : time_internal::MakeDuration(
>+                         time_internal::NegateAndSubtractOne(
>+                             time_internal::GetRepHi(d)),
>+                         time_internal::kTicksPerSecond -
>+                             time_internal::GetRepLo(d));
>+}
>+
>+constexpr Duration InfiniteDuration() {
>+  return time_internal::MakeDuration(std::numeric_limits<int64_t>::max(), ~0U);
>+}
>+
>+constexpr Duration FromChrono(const std::chrono::nanoseconds& d) {
>+  return time_internal::FromChrono(d);
>+}
>+constexpr Duration FromChrono(const std::chrono::microseconds& d) {
>+  return time_internal::FromChrono(d);
>+}
>+constexpr Duration FromChrono(const std::chrono::milliseconds& d) {
>+  return time_internal::FromChrono(d);
>+}
>+constexpr Duration FromChrono(const std::chrono::seconds& d) {
>+  return time_internal::FromChrono(d);
>+}
>+constexpr Duration FromChrono(const std::chrono::minutes& d) {
>+  return time_internal::FromChrono(d);
>+}
>+constexpr Duration FromChrono(const std::chrono::hours& d) {
>+  return time_internal::FromChrono(d);
>+}
>+
>+constexpr Time FromUnixNanos(int64_t ns) {
>+  return time_internal::FromUnixDuration(Nanoseconds(ns));
>+}
>+
>+constexpr Time FromUnixMicros(int64_t us) {
>+  return time_internal::FromUnixDuration(Microseconds(us));
>+}
>+
>+constexpr Time FromUnixMillis(int64_t ms) {
>+  return time_internal::FromUnixDuration(Milliseconds(ms));
>+}
>+
>+constexpr Time FromUnixSeconds(int64_t s) {
>+  return time_internal::FromUnixDuration(Seconds(s));
>+}
>+
>+constexpr Time FromTimeT(time_t t) {
>+  return time_internal::FromUnixDuration(Seconds(t));
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_TIME_TIME_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..e1009946cd586ef3303e05333922a69903953754
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_benchmark.cc
>@@ -0,0 +1,316 @@
>+// Copyright 2018 The Abseil Authors.
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/time.h"
>+
>+#if !defined(_WIN32)
>+#include <sys/time.h>
>+#endif  // _WIN32
>+#include <algorithm>
>+#include <cmath>
>+#include <cstddef>
>+#include <cstring>
>+#include <ctime>
>+#include <memory>
>+#include <string>
>+
>+#include "absl/time/clock.h"
>+#include "absl/time/internal/test_util.h"
>+#include "benchmark/benchmark.h"
>+
>+namespace {
>+
>+//
>+// Addition/Subtraction of a duration
>+//
>+
>+void BM_Time_Arithmetic(benchmark::State& state) {
>+  const absl::Duration nano = absl::Nanoseconds(1);
>+  const absl::Duration sec = absl::Seconds(1);
>+  absl::Time t = absl::UnixEpoch();
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(t += nano);
>+    benchmark::DoNotOptimize(t -= sec);
>+  }
>+}
>+BENCHMARK(BM_Time_Arithmetic);
>+
>+//
>+// Time difference
>+//
>+
>+void BM_Time_Difference(benchmark::State& state) {
>+  absl::Time start = absl::Now();
>+  absl::Time end = start + absl::Nanoseconds(1);
>+  absl::Duration diff;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(diff += end - start);
>+  }
>+}
>+BENCHMARK(BM_Time_Difference);
>+
>+//
>+// ToDateTime
>+//
>+// In each "ToDateTime" benchmark we switch between two instants
>+// separated by at least one transition in order to defeat any
>+// internal caching of previous results (e.g., see local_time_hint_).
>+//
>+// The "UTC" variants use UTC instead of the Google/local time zone.
>+//
>+
>+void BM_Time_ToDateTime_Absl(benchmark::State& state) {
>+  const absl::TimeZone tz =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  absl::Time t = absl::FromUnixSeconds(1384569027);
>+  absl::Time t2 = absl::FromUnixSeconds(1418962578);
>+  while (state.KeepRunning()) {
>+    std::swap(t, t2);
>+    t += absl::Seconds(1);
>+    benchmark::DoNotOptimize(t.In(tz));
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTime_Absl);
>+
>+void BM_Time_ToDateTime_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  time_t t = 1384569027;
>+  time_t t2 = 1418962578;
>+  while (state.KeepRunning()) {
>+    std::swap(t, t2);
>+    t += 1;
>+    struct tm tm;
>+#if !defined(_WIN32)
>+    benchmark::DoNotOptimize(localtime_r(&t, &tm));
>+#else   // _WIN32
>+    benchmark::DoNotOptimize(localtime_s(&tm, &t));
>+#endif  // _WIN32
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTime_Libc);
>+
>+void BM_Time_ToDateTimeUTC_Absl(benchmark::State& state) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+  absl::Time t = absl::FromUnixSeconds(1384569027);
>+  while (state.KeepRunning()) {
>+    t += absl::Seconds(1);
>+    benchmark::DoNotOptimize(t.In(tz));
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTimeUTC_Absl);
>+
>+void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) {
>+  time_t t = 1384569027;
>+  while (state.KeepRunning()) {
>+    t += 1;
>+    struct tm tm;
>+#if !defined(_WIN32)
>+    benchmark::DoNotOptimize(gmtime_r(&t, &tm));
>+#else   // _WIN32
>+    benchmark::DoNotOptimize(gmtime_s(&tm, &t));
>+#endif  // _WIN32
>+  }
>+}
>+BENCHMARK(BM_Time_ToDateTimeUTC_Libc);
>+
>+//
>+// FromUnixMicros
>+//
>+
>+void BM_Time_FromUnixMicros(benchmark::State& state) {
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::FromUnixMicros(i));
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Time_FromUnixMicros);
>+
>+void BM_Time_ToUnixNanos(benchmark::State& state) {
>+  const absl::Time t = absl::UnixEpoch() + absl::Seconds(123);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(ToUnixNanos(t));
>+  }
>+}
>+BENCHMARK(BM_Time_ToUnixNanos);
>+
>+void BM_Time_ToUnixMicros(benchmark::State& state) {
>+  const absl::Time t = absl::UnixEpoch() + absl::Seconds(123);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(ToUnixMicros(t));
>+  }
>+}
>+BENCHMARK(BM_Time_ToUnixMicros);
>+
>+void BM_Time_ToUnixMillis(benchmark::State& state) {
>+  const absl::Time t = absl::UnixEpoch() + absl::Seconds(123);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(ToUnixMillis(t));
>+  }
>+}
>+BENCHMARK(BM_Time_ToUnixMillis);
>+
>+void BM_Time_ToUnixSeconds(benchmark::State& state) {
>+  const absl::Time t = absl::UnixEpoch() + absl::Seconds(123);
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToUnixSeconds(t));
>+  }
>+}
>+BENCHMARK(BM_Time_ToUnixSeconds);
>+
>+//
>+// FromDateTime
>+//
>+// In each "FromDateTime" benchmark we switch between two YMDhms
>+// values separated by at least one transition in order to defeat any
>+// internal caching of previous results (e.g., see time_local_hint_).
>+//
>+// The "UTC" variants use UTC instead of the Google/local time zone.
>+// The "Day0" variants require normalization of the day of month.
>+//
>+
>+void BM_Time_FromDateTime_Absl(benchmark::State& state) {
>+  const absl::TimeZone tz =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    if ((i & 1) == 0) {
>+      absl::FromDateTime(2014, 12, 18, 20, 16, 18, tz);
>+    } else {
>+      absl::FromDateTime(2013, 11, 15, 18, 30, 27, tz);
>+    }
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTime_Absl);
>+
>+void BM_Time_FromDateTime_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    struct tm tm;
>+    if ((i & 1) == 0) {
>+      tm.tm_year = 2014 - 1900;
>+      tm.tm_mon = 12 - 1;
>+      tm.tm_mday = 18;
>+      tm.tm_hour = 20;
>+      tm.tm_min = 16;
>+      tm.tm_sec = 18;
>+    } else {
>+      tm.tm_year = 2013 - 1900;
>+      tm.tm_mon = 11 - 1;
>+      tm.tm_mday = 15;
>+      tm.tm_hour = 18;
>+      tm.tm_min = 30;
>+      tm.tm_sec = 27;
>+    }
>+    tm.tm_isdst = -1;
>+    mktime(&tm);
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTime_Libc);
>+
>+void BM_Time_FromDateTimeUTC_Absl(benchmark::State& state) {
>+  const absl::TimeZone tz = absl::UTCTimeZone();
>+  while (state.KeepRunning()) {
>+    FromDateTime(2014, 12, 18, 20, 16, 18, tz);
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeUTC_Absl);
>+
>+void BM_Time_FromDateTimeDay0_Absl(benchmark::State& state) {
>+  const absl::TimeZone tz =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    if ((i & 1) == 0) {
>+      absl::FromDateTime(2014, 12, 0, 20, 16, 18, tz);
>+    } else {
>+      absl::FromDateTime(2013, 11, 0, 18, 30, 27, tz);
>+    }
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeDay0_Absl);
>+
>+void BM_Time_FromDateTimeDay0_Libc(benchmark::State& state) {
>+  // No timezone support, so just use localtime.
>+  int i = 0;
>+  while (state.KeepRunning()) {
>+    struct tm tm;
>+    if ((i & 1) == 0) {
>+      tm.tm_year = 2014 - 1900;
>+      tm.tm_mon = 12 - 1;
>+      tm.tm_mday = 0;
>+      tm.tm_hour = 20;
>+      tm.tm_min = 16;
>+      tm.tm_sec = 18;
>+    } else {
>+      tm.tm_year = 2013 - 1900;
>+      tm.tm_mon = 11 - 1;
>+      tm.tm_mday = 0;
>+      tm.tm_hour = 18;
>+      tm.tm_min = 30;
>+      tm.tm_sec = 27;
>+    }
>+    tm.tm_isdst = -1;
>+    mktime(&tm);
>+    ++i;
>+  }
>+}
>+BENCHMARK(BM_Time_FromDateTimeDay0_Libc);
>+
>+//
>+// To/FromTimespec
>+//
>+
>+void BM_Time_ToTimespec(benchmark::State& state) {
>+  absl::Time now = absl::Now();
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::ToTimespec(now));
>+  }
>+}
>+BENCHMARK(BM_Time_ToTimespec);
>+
>+void BM_Time_FromTimespec(benchmark::State& state) {
>+  timespec ts = absl::ToTimespec(absl::Now());
>+  while (state.KeepRunning()) {
>+    if (++ts.tv_nsec == 1000 * 1000 * 1000) {
>+      ++ts.tv_sec;
>+      ts.tv_nsec = 0;
>+    }
>+    benchmark::DoNotOptimize(absl::TimeFromTimespec(ts));
>+  }
>+}
>+BENCHMARK(BM_Time_FromTimespec);
>+
>+//
>+// Comparison with InfiniteFuture/Past
>+//
>+
>+void BM_Time_InfiniteFuture(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::InfiniteFuture());
>+  }
>+}
>+BENCHMARK(BM_Time_InfiniteFuture);
>+
>+void BM_Time_InfinitePast(benchmark::State& state) {
>+  while (state.KeepRunning()) {
>+    benchmark::DoNotOptimize(absl::InfinitePast());
>+  }
>+}
>+BENCHMARK(BM_Time_InfinitePast);
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_norm_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_norm_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..4436242e4125578e2f15a7873d6c1c6b09ca6ae0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_norm_test.cc
>@@ -0,0 +1,306 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// This file contains tests for FromDateTime() normalization, which is
>+// time-zone independent so we just use UTC throughout.
>+
>+#include <cstdint>
>+#include <limits>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/time/internal/test_util.h"
>+#include "absl/time/time.h"
>+
>+namespace {
>+
>+TEST(TimeNormCase, SimpleOverflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc =
>+      absl::ConvertDateTime(2013, 11, 15, 16, 32, 59 + 1, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 16, 33, 0, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16, 59 + 1, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 17, 0, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 23 + 1, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 16, 0, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 30 + 1, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 12, 1, 16, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 12 + 1, 15, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2014, 1, 15, 16, 32, 14, 0, false);
>+}
>+
>+TEST(TimeNormCase, SimpleUnderflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc = ConvertDateTime(2013, 11, 15, 16, 32, 0 - 1, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 16, 31, 59, 0, false);
>+
>+  tc = ConvertDateTime(2013, 11, 15, 16, 0 - 1, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 15, 15, 59, 14, 0, false);
>+
>+  tc = ConvertDateTime(2013, 11, 15, 0 - 1, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 14, 23, 32, 14, 0, false);
>+
>+  tc = ConvertDateTime(2013, 11, 1 - 1, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 10, 31, 16, 32, 14, 0, false);
>+
>+  tc = ConvertDateTime(2013, 1 - 1, 15, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2012, 12, 15, 16, 32, 14, 0, false);
>+}
>+
>+TEST(TimeNormCase, MultipleOverflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::TimeConversion tc = ConvertDateTime(2013, 12, 31, 23, 59, 59 + 1, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2014, 1, 1, 0, 0, 0, 0, false);
>+}
>+
>+TEST(TimeNormCase, MultipleUnderflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::TimeConversion tc = absl::ConvertDateTime(2014, 1, 1, 0, 0, 0 - 1, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 12, 31, 23, 59, 59, 0, false);
>+}
>+
>+TEST(TimeNormCase, OverflowLimits) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::TimeConversion tc;
>+  absl::Time::Breakdown bd;
>+
>+  const int kintmax = std::numeric_limits<int>::max();
>+  tc = absl::ConvertDateTime(0, kintmax, kintmax, kintmax, kintmax, kintmax,
>+                             utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 185085715, 11, 27, 12, 21, 7, 0, false);
>+
>+  const int kintmin = std::numeric_limits<int>::min();
>+  tc = absl::ConvertDateTime(0, kintmin, kintmin, kintmin, kintmin, kintmin,
>+                             utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, -185085717, 10, 31, 10, 37, 52, 0, false);
>+
>+  const int64_t max_year = std::numeric_limits<int64_t>::max();
>+  tc = absl::ConvertDateTime(max_year, 12, 31, 23, 59, 59, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  EXPECT_EQ(absl::InfiniteFuture(), tc.pre);
>+
>+  const int64_t min_year = std::numeric_limits<int64_t>::min();
>+  tc = absl::ConvertDateTime(min_year, 1, 1, 0, 0, 0, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  EXPECT_EQ(absl::InfinitePast(), tc.pre);
>+}
>+
>+TEST(TimeNormCase, ComplexOverflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc =
>+      ConvertDateTime(2013, 11, 15, 16, 32, 14 + 123456789, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2017, 10, 14, 14, 5, 23, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16, 32 + 1234567, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2016, 3, 22, 0, 39, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16 + 123456, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2027, 12, 16, 16, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15 + 1234, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2017, 4, 2, 16, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11 + 123, 15, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2024, 2, 15, 16, 32, 14, 0, false);
>+}
>+
>+TEST(TimeNormCase, ComplexUnderflow) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc =
>+      absl::ConvertDateTime(1999, 3, 0, 0, 0, 0, utc);  // year 400
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1999, 2, 28, 0, 0, 0, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16, 32, 14 - 123456789, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2009, 12, 17, 18, 59, 5, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16, 32 - 1234567, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2011, 7, 12, 8, 25, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15, 16 - 123456, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1999, 10, 16, 16, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11, 15 - 1234, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2010, 6, 30, 16, 32, 14, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11 - 123, 15, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2003, 8, 15, 16, 32, 14, 0, false);
>+}
>+
>+TEST(TimeNormCase, Mishmash) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc =
>+      absl::ConvertDateTime(2013, 11 - 123, 15 + 1234, 16 - 123456,
>+                            32 + 1234567, 14 - 123456789, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1991, 5, 9, 3, 6, 5, 0, false);
>+
>+  tc = absl::ConvertDateTime(2013, 11 + 123, 15 - 1234, 16 + 123456,
>+                             32 - 1234567, 14 + 123456789, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2036, 5, 24, 5, 58, 23, 0, false);
>+
>+  // Here is a normalization case we got wrong for a while.  Because the
>+  // day is converted to "1" within a 400-year (146097-day) period, we
>+  // didn't need to roll the month and so we didn't mark it as normalized.
>+  tc = absl::ConvertDateTime(2013, 11, -146097 + 1, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1613, 11, 1, 16, 32, 14, 0, false);
>+
>+  // Even though the month overflow compensates for the day underflow,
>+  // this should still be marked as normalized.
>+  tc = absl::ConvertDateTime(2013, 11 + 400 * 12, -146097 + 1, 16, 32, 14, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 11, 1, 16, 32, 14, 0, false);
>+}
>+
>+TEST(TimeNormCase, LeapYears) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  absl::TimeConversion tc =
>+      absl::ConvertDateTime(2013, 2, 28 + 1, 0, 0, 0, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  absl::Time::Breakdown bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2013, 3, 1, 0, 0, 0, 0, false);
>+
>+  tc = absl::ConvertDateTime(2012, 2, 28 + 1, 0, 0, 0, utc);
>+  EXPECT_FALSE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2012, 2, 29, 0, 0, 0, 0, false);
>+
>+  tc = absl::ConvertDateTime(2000, 2, 28 + 1, 0, 0, 0, utc);
>+  EXPECT_FALSE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 2000, 2, 29, 0, 0, 0, 0, false);
>+
>+  tc = absl::ConvertDateTime(1900, 2, 28 + 1, 0, 0, 0, utc);
>+  EXPECT_TRUE(tc.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+  bd = tc.pre.In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1900, 3, 1, 0, 0, 0, 0, false);
>+}
>+
>+// Convert all the days from 1970-1-1 to 1970-1-146097 (aka 2369-12-31)
>+// and check that they normalize to the expected time.  146097 days span
>+// the 400-year Gregorian cycle used during normalization.
>+TEST(TimeNormCase, AllTheDays) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::Time exp_time = absl::UnixEpoch();
>+
>+  for (int day = 1; day <= 146097; ++day) {
>+    absl::TimeConversion tc = absl::ConvertDateTime(1970, 1, day, 0, 0, 0, utc);
>+    EXPECT_EQ(day > 31, tc.normalized);
>+    EXPECT_EQ(absl::TimeConversion::UNIQUE, tc.kind);
>+    EXPECT_EQ(exp_time, tc.pre);
>+    exp_time += absl::Hours(24);
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..4f8f58a6ef362d9d8a0227a2708d22df6e0f3993
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_test.cc
>@@ -0,0 +1,1088 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/time.h"
>+
>+#include <chrono>  // NOLINT(build/c++11)
>+#include <cstring>
>+#include <ctime>
>+#include <iomanip>
>+#include <limits>
>+#include <string>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/time/clock.h"
>+#include "absl/time/internal/test_util.h"
>+
>+namespace {
>+
>+// A gMock matcher to match timespec values. Use this matcher like:
>+// timespec ts1, ts2;
>+// EXPECT_THAT(ts1, TimespecMatcher(ts2));
>+MATCHER_P(TimespecMatcher, ts, "") {
>+  if (ts.tv_sec == arg.tv_sec && ts.tv_nsec == arg.tv_nsec)
>+    return true;
>+  *result_listener << "expected: {" << ts.tv_sec << ", " << ts.tv_nsec << "} ";
>+  *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_nsec << "}";
>+  return false;
>+}
>+
>+// A gMock matcher to match timeval values. Use this matcher like:
>+// timeval tv1, tv2;
>+// EXPECT_THAT(tv1, TimevalMatcher(tv2));
>+MATCHER_P(TimevalMatcher, tv, "") {
>+  if (tv.tv_sec == arg.tv_sec && tv.tv_usec == arg.tv_usec)
>+    return true;
>+  *result_listener << "expected: {" << tv.tv_sec << ", " << tv.tv_usec << "} ";
>+  *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_usec << "}";
>+  return false;
>+}
>+
>+TEST(Time, ConstExpr) {
>+  constexpr absl::Time t0 = absl::UnixEpoch();
>+  static_assert(t0 == absl::Time(), "UnixEpoch");
>+  constexpr absl::Time t1 = absl::InfiniteFuture();
>+  static_assert(t1 != absl::Time(), "InfiniteFuture");
>+  constexpr absl::Time t2 = absl::InfinitePast();
>+  static_assert(t2 != absl::Time(), "InfinitePast");
>+  constexpr absl::Time t3 = absl::FromUnixNanos(0);
>+  static_assert(t3 == absl::Time(), "FromUnixNanos");
>+  constexpr absl::Time t4 = absl::FromUnixMicros(0);
>+  static_assert(t4 == absl::Time(), "FromUnixMicros");
>+  constexpr absl::Time t5 = absl::FromUnixMillis(0);
>+  static_assert(t5 == absl::Time(), "FromUnixMillis");
>+  constexpr absl::Time t6 = absl::FromUnixSeconds(0);
>+  static_assert(t6 == absl::Time(), "FromUnixSeconds");
>+  constexpr absl::Time t7 = absl::FromTimeT(0);
>+  static_assert(t7 == absl::Time(), "FromTimeT");
>+}
>+
>+TEST(Time, ValueSemantics) {
>+  absl::Time a;      // Default construction
>+  absl::Time b = a;  // Copy construction
>+  EXPECT_EQ(a, b);
>+  absl::Time c(a);  // Copy construction (again)
>+  EXPECT_EQ(a, b);
>+  EXPECT_EQ(a, c);
>+  EXPECT_EQ(b, c);
>+  b = c;       // Assignment
>+  EXPECT_EQ(a, b);
>+  EXPECT_EQ(a, c);
>+  EXPECT_EQ(b, c);
>+}
>+
>+TEST(Time, UnixEpoch) {
>+  absl::Time::Breakdown bd = absl::UnixEpoch().In(absl::UTCTimeZone());
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1970, 1, 1, 0, 0, 0, 0, false);
>+  EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
>+  EXPECT_EQ(4, bd.weekday);  // Thursday
>+}
>+
>+TEST(Time, Breakdown) {
>+  absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/New_York");
>+  absl::Time t = absl::UnixEpoch();
>+
>+  // The Unix epoch as seen in NYC.
>+  absl::Time::Breakdown bd = t.In(tz);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1969, 12, 31, 19, 0, 0, -18000, false);
>+  EXPECT_EQ(absl::ZeroDuration(), bd.subsecond);
>+  EXPECT_EQ(3, bd.weekday);  // Wednesday
>+
>+  // Just before the epoch.
>+  t -= absl::Nanoseconds(1);
>+  bd = t.In(tz);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1969, 12, 31, 18, 59, 59, -18000, false);
>+  EXPECT_EQ(absl::Nanoseconds(999999999), bd.subsecond);
>+  EXPECT_EQ(3, bd.weekday);  // Wednesday
>+
>+  // Some time later.
>+  t += absl::Hours(24) * 2735;
>+  t += absl::Hours(18) + absl::Minutes(30) + absl::Seconds(15) +
>+       absl::Nanoseconds(9);
>+  bd = t.In(tz);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 1977, 6, 28, 14, 30, 15, -14400, true);
>+  EXPECT_EQ(8, bd.subsecond / absl::Nanoseconds(1));
>+  EXPECT_EQ(2, bd.weekday);  // Tuesday
>+}
>+
>+TEST(Time, AdditiveOperators) {
>+  const absl::Duration d = absl::Nanoseconds(1);
>+  const absl::Time t0;
>+  const absl::Time t1 = t0 + d;
>+
>+  EXPECT_EQ(d, t1 - t0);
>+  EXPECT_EQ(-d, t0 - t1);
>+  EXPECT_EQ(t0, t1 - d);
>+
>+  absl::Time t(t0);
>+  EXPECT_EQ(t0, t);
>+  t += d;
>+  EXPECT_EQ(t0 + d, t);
>+  EXPECT_EQ(d, t - t0);
>+  t -= d;
>+  EXPECT_EQ(t0, t);
>+
>+  // Tests overflow between subseconds and seconds.
>+  t = absl::UnixEpoch();
>+  t += absl::Milliseconds(500);
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t);
>+  t += absl::Milliseconds(600);
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(1100), t);
>+  t -= absl::Milliseconds(600);
>+  EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t);
>+  t -= absl::Milliseconds(500);
>+  EXPECT_EQ(absl::UnixEpoch(), t);
>+}
>+
>+TEST(Time, RelationalOperators) {
>+  constexpr absl::Time t1 = absl::FromUnixNanos(0);
>+  constexpr absl::Time t2 = absl::FromUnixNanos(1);
>+  constexpr absl::Time t3 = absl::FromUnixNanos(2);
>+
>+  static_assert(absl::Time() == t1, "");
>+  static_assert(t1 == t1, "");
>+  static_assert(t2 == t2, "");
>+  static_assert(t3 == t3, "");
>+
>+  static_assert(t1 < t2, "");
>+  static_assert(t2 < t3, "");
>+  static_assert(t1 < t3, "");
>+
>+  static_assert(t1 <= t1, "");
>+  static_assert(t1 <= t2, "");
>+  static_assert(t2 <= t2, "");
>+  static_assert(t2 <= t3, "");
>+  static_assert(t3 <= t3, "");
>+  static_assert(t1 <= t3, "");
>+
>+  static_assert(t2 > t1, "");
>+  static_assert(t3 > t2, "");
>+  static_assert(t3 > t1, "");
>+
>+  static_assert(t2 >= t2, "");
>+  static_assert(t2 >= t1, "");
>+  static_assert(t3 >= t3, "");
>+  static_assert(t3 >= t2, "");
>+  static_assert(t1 >= t1, "");
>+  static_assert(t3 >= t1, "");
>+}
>+
>+TEST(Time, Infinity) {
>+  constexpr absl::Time ifuture = absl::InfiniteFuture();
>+  constexpr absl::Time ipast = absl::InfinitePast();
>+
>+  static_assert(ifuture == ifuture, "");
>+  static_assert(ipast == ipast, "");
>+  static_assert(ipast < ifuture, "");
>+  static_assert(ifuture > ipast, "");
>+
>+  // Arithmetic saturates
>+  EXPECT_EQ(ifuture, ifuture + absl::Seconds(1));
>+  EXPECT_EQ(ifuture, ifuture - absl::Seconds(1));
>+  EXPECT_EQ(ipast, ipast + absl::Seconds(1));
>+  EXPECT_EQ(ipast, ipast - absl::Seconds(1));
>+
>+  EXPECT_EQ(absl::InfiniteDuration(), ifuture - ifuture);
>+  EXPECT_EQ(absl::InfiniteDuration(), ifuture - ipast);
>+  EXPECT_EQ(-absl::InfiniteDuration(), ipast - ifuture);
>+  EXPECT_EQ(-absl::InfiniteDuration(), ipast - ipast);
>+
>+  constexpr absl::Time t = absl::UnixEpoch();  // Any finite time.
>+  static_assert(t < ifuture, "");
>+  static_assert(t > ipast, "");
>+}
>+
>+TEST(Time, FloorConversion) {
>+#define TEST_FLOOR_CONVERSION(TO, FROM) \
>+  EXPECT_EQ(1, TO(FROM(1001)));         \
>+  EXPECT_EQ(1, TO(FROM(1000)));         \
>+  EXPECT_EQ(0, TO(FROM(999)));          \
>+  EXPECT_EQ(0, TO(FROM(1)));            \
>+  EXPECT_EQ(0, TO(FROM(0)));            \
>+  EXPECT_EQ(-1, TO(FROM(-1)));          \
>+  EXPECT_EQ(-1, TO(FROM(-999)));        \
>+  EXPECT_EQ(-1, TO(FROM(-1000)));       \
>+  EXPECT_EQ(-2, TO(FROM(-1001)));
>+
>+  TEST_FLOOR_CONVERSION(absl::ToUnixMicros, absl::FromUnixNanos);
>+  TEST_FLOOR_CONVERSION(absl::ToUnixMillis, absl::FromUnixMicros);
>+  TEST_FLOOR_CONVERSION(absl::ToUnixSeconds, absl::FromUnixMillis);
>+  TEST_FLOOR_CONVERSION(absl::ToTimeT, absl::FromUnixMillis);
>+
>+#undef TEST_FLOOR_CONVERSION
>+
>+  // Tests ToUnixNanos.
>+  EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(3) / 2));
>+  EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1)));
>+  EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1) / 2));
>+  EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(0)));
>+  EXPECT_EQ(-1,
>+            absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1) / 2));
>+  EXPECT_EQ(-1, absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1)));
>+  EXPECT_EQ(-2,
>+            absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(3) / 2));
>+
>+  // Tests ToUniversal, which uses a different epoch than the tests above.
>+  EXPECT_EQ(1,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(101)));
>+  EXPECT_EQ(1,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(100)));
>+  EXPECT_EQ(0,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(99)));
>+  EXPECT_EQ(0,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(1)));
>+  EXPECT_EQ(0,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(0)));
>+  EXPECT_EQ(-1,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-1)));
>+  EXPECT_EQ(-1,
>+            absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-99)));
>+  EXPECT_EQ(
>+      -1, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-100)));
>+  EXPECT_EQ(
>+      -2, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-101)));
>+
>+  // Tests ToTimespec()/TimeFromTimespec()
>+  const struct {
>+    absl::Time t;
>+    timespec ts;
>+  } to_ts[] = {
>+      {absl::FromUnixSeconds(1) + absl::Nanoseconds(1), {1, 1}},
>+      {absl::FromUnixSeconds(1) + absl::Nanoseconds(1) / 2, {1, 0}},
>+      {absl::FromUnixSeconds(1) + absl::Nanoseconds(0), {1, 0}},
>+      {absl::FromUnixSeconds(0) + absl::Nanoseconds(0), {0, 0}},
>+      {absl::FromUnixSeconds(0) - absl::Nanoseconds(1) / 2, {-1, 999999999}},
>+      {absl::FromUnixSeconds(0) - absl::Nanoseconds(1), {-1, 999999999}},
>+      {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1), {-1, 1}},
>+      {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1) / 2, {-1, 0}},
>+      {absl::FromUnixSeconds(-1) + absl::Nanoseconds(0), {-1, 0}},
>+      {absl::FromUnixSeconds(-1) - absl::Nanoseconds(1) / 2, {-2, 999999999}},
>+  };
>+  for (const auto& test : to_ts) {
>+    EXPECT_THAT(absl::ToTimespec(test.t), TimespecMatcher(test.ts));
>+  }
>+  const struct {
>+    timespec ts;
>+    absl::Time t;
>+  } from_ts[] = {
>+      {{1, 1}, absl::FromUnixSeconds(1) + absl::Nanoseconds(1)},
>+      {{1, 0}, absl::FromUnixSeconds(1) + absl::Nanoseconds(0)},
>+      {{0, 0}, absl::FromUnixSeconds(0) + absl::Nanoseconds(0)},
>+      {{0, -1}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)},
>+      {{-1, 999999999}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)},
>+      {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(1)},
>+      {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(0)},
>+      {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)},
>+      {{-2, 999999999}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)},
>+  };
>+  for (const auto& test : from_ts) {
>+    EXPECT_EQ(test.t, absl::TimeFromTimespec(test.ts));
>+  }
>+
>+  // Tests ToTimeval()/TimeFromTimeval() (same as timespec above)
>+  const struct {
>+    absl::Time t;
>+    timeval tv;
>+  } to_tv[] = {
>+      {absl::FromUnixSeconds(1) + absl::Microseconds(1), {1, 1}},
>+      {absl::FromUnixSeconds(1) + absl::Microseconds(1) / 2, {1, 0}},
>+      {absl::FromUnixSeconds(1) + absl::Microseconds(0), {1, 0}},
>+      {absl::FromUnixSeconds(0) + absl::Microseconds(0), {0, 0}},
>+      {absl::FromUnixSeconds(0) - absl::Microseconds(1) / 2, {-1, 999999}},
>+      {absl::FromUnixSeconds(0) - absl::Microseconds(1), {-1, 999999}},
>+      {absl::FromUnixSeconds(-1) + absl::Microseconds(1), {-1, 1}},
>+      {absl::FromUnixSeconds(-1) + absl::Microseconds(1) / 2, {-1, 0}},
>+      {absl::FromUnixSeconds(-1) + absl::Microseconds(0), {-1, 0}},
>+      {absl::FromUnixSeconds(-1) - absl::Microseconds(1) / 2, {-2, 999999}},
>+  };
>+  for (const auto& test : to_tv) {
>+    EXPECT_THAT(ToTimeval(test.t), TimevalMatcher(test.tv));
>+  }
>+  const struct {
>+    timeval tv;
>+    absl::Time t;
>+  } from_tv[] = {
>+      {{1, 1}, absl::FromUnixSeconds(1) + absl::Microseconds(1)},
>+      {{1, 0}, absl::FromUnixSeconds(1) + absl::Microseconds(0)},
>+      {{0, 0}, absl::FromUnixSeconds(0) + absl::Microseconds(0)},
>+      {{0, -1}, absl::FromUnixSeconds(0) - absl::Microseconds(1)},
>+      {{-1, 999999}, absl::FromUnixSeconds(0) - absl::Microseconds(1)},
>+      {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Microseconds(1)},
>+      {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Microseconds(0)},
>+      {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)},
>+      {{-2, 999999}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)},
>+  };
>+  for (const auto& test : from_tv) {
>+    EXPECT_EQ(test.t, absl::TimeFromTimeval(test.tv));
>+  }
>+
>+  // Tests flooring near negative infinity.
>+  const int64_t min_plus_1 = std::numeric_limits<int64_t>::min() + 1;
>+  EXPECT_EQ(min_plus_1, absl::ToUnixSeconds(absl::FromUnixSeconds(min_plus_1)));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::min(),
>+            absl::ToUnixSeconds(
>+                absl::FromUnixSeconds(min_plus_1) - absl::Nanoseconds(1) / 2));
>+
>+  // Tests flooring near positive infinity.
>+  EXPECT_EQ(std::numeric_limits<int64_t>::max(),
>+            absl::ToUnixSeconds(absl::FromUnixSeconds(
>+                std::numeric_limits<int64_t>::max()) + absl::Nanoseconds(1) / 2));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::max(),
>+            absl::ToUnixSeconds(
>+                absl::FromUnixSeconds(std::numeric_limits<int64_t>::max())));
>+  EXPECT_EQ(std::numeric_limits<int64_t>::max() - 1,
>+            absl::ToUnixSeconds(absl::FromUnixSeconds(
>+                std::numeric_limits<int64_t>::max()) - absl::Nanoseconds(1) / 2));
>+}
>+
>+TEST(Time, RoundtripConversion) {
>+#define TEST_CONVERSION_ROUND_TRIP(SOURCE, FROM, TO, MATCHER) \
>+  EXPECT_THAT(TO(FROM(SOURCE)), MATCHER(SOURCE))
>+
>+  // FromUnixNanos() and ToUnixNanos()
>+  int64_t now_ns = absl::GetCurrentTimeNanos();
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixNanos, absl::ToUnixNanos,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixNanos, absl::ToUnixNanos,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixNanos, absl::ToUnixNanos,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_ns, absl::FromUnixNanos, absl::ToUnixNanos,
>+                             testing::Eq)
>+      << now_ns;
>+
>+  // FromUnixMicros() and ToUnixMicros()
>+  int64_t now_us = absl::GetCurrentTimeNanos() / 1000;
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMicros, absl::ToUnixMicros,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMicros, absl::ToUnixMicros,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMicros, absl::ToUnixMicros,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_us, absl::FromUnixMicros, absl::ToUnixMicros,
>+                             testing::Eq)
>+      << now_us;
>+
>+  // FromUnixMillis() and ToUnixMillis()
>+  int64_t now_ms = absl::GetCurrentTimeNanos() / 1000000;
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMillis, absl::ToUnixMillis,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMillis, absl::ToUnixMillis,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMillis, absl::ToUnixMillis,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_ms, absl::FromUnixMillis, absl::ToUnixMillis,
>+                             testing::Eq)
>+      << now_ms;
>+
>+  // FromUnixSeconds() and ToUnixSeconds()
>+  int64_t now_s = std::time(nullptr);
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixSeconds, absl::ToUnixSeconds,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixSeconds, absl::ToUnixSeconds,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixSeconds, absl::ToUnixSeconds,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_s, absl::FromUnixSeconds, absl::ToUnixSeconds,
>+                             testing::Eq)
>+      << now_s;
>+
>+  // FromTimeT() and ToTimeT()
>+  time_t now_time_t = std::time(nullptr);
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromTimeT, absl::ToTimeT, testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromTimeT, absl::ToTimeT, testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromTimeT, absl::ToTimeT, testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_time_t, absl::FromTimeT, absl::ToTimeT,
>+                             testing::Eq)
>+      << now_time_t;
>+
>+  // TimeFromTimeval() and ToTimeval()
>+  timeval tv;
>+  tv.tv_sec = -1;
>+  tv.tv_usec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval,
>+                             TimevalMatcher);
>+  tv.tv_sec = -1;
>+  tv.tv_usec = 999999;
>+  TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval,
>+                             TimevalMatcher);
>+  tv.tv_sec = 0;
>+  tv.tv_usec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval,
>+                             TimevalMatcher);
>+  tv.tv_sec = 0;
>+  tv.tv_usec = 1;
>+  TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval,
>+                             TimevalMatcher);
>+  tv.tv_sec = 1;
>+  tv.tv_usec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval,
>+                             TimevalMatcher);
>+
>+  // TimeFromTimespec() and ToTimespec()
>+  timespec ts;
>+  ts.tv_sec = -1;
>+  ts.tv_nsec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec,
>+                             TimespecMatcher);
>+  ts.tv_sec = -1;
>+  ts.tv_nsec = 999999999;
>+  TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec,
>+                             TimespecMatcher);
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec,
>+                             TimespecMatcher);
>+  ts.tv_sec = 0;
>+  ts.tv_nsec = 1;
>+  TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec,
>+                             TimespecMatcher);
>+  ts.tv_sec = 1;
>+  ts.tv_nsec = 0;
>+  TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec,
>+                             TimespecMatcher);
>+
>+  // FromUDate() and ToUDate()
>+  double now_ud = absl::GetCurrentTimeNanos() / 1000000;
>+  TEST_CONVERSION_ROUND_TRIP(-1.5, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(-0.5, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(0.5, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(1.5, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq);
>+  TEST_CONVERSION_ROUND_TRIP(now_ud, absl::FromUDate, absl::ToUDate,
>+                             testing::DoubleEq)
>+      << std::fixed << std::setprecision(17) << now_ud;
>+
>+  // FromUniversal() and ToUniversal()
>+  int64_t now_uni = ((719162LL * (24 * 60 * 60)) * (1000 * 1000 * 10)) +
>+                    (absl::GetCurrentTimeNanos() / 100);
>+  TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUniversal, absl::ToUniversal,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(0, absl::FromUniversal, absl::ToUniversal,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(1, absl::FromUniversal, absl::ToUniversal,
>+                             testing::Eq);
>+  TEST_CONVERSION_ROUND_TRIP(now_uni, absl::FromUniversal, absl::ToUniversal,
>+                             testing::Eq)
>+      << now_uni;
>+
>+#undef TEST_CONVERSION_ROUND_TRIP
>+}
>+
>+template <typename Duration>
>+std::chrono::system_clock::time_point MakeChronoUnixTime(const Duration& d) {
>+  return std::chrono::system_clock::from_time_t(0) + d;
>+}
>+
>+TEST(Time, FromChrono) {
>+  EXPECT_EQ(absl::FromTimeT(-1),
>+            absl::FromChrono(std::chrono::system_clock::from_time_t(-1)));
>+  EXPECT_EQ(absl::FromTimeT(0),
>+            absl::FromChrono(std::chrono::system_clock::from_time_t(0)));
>+  EXPECT_EQ(absl::FromTimeT(1),
>+            absl::FromChrono(std::chrono::system_clock::from_time_t(1)));
>+
>+  EXPECT_EQ(
>+      absl::FromUnixMillis(-1),
>+      absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(-1))));
>+  EXPECT_EQ(absl::FromUnixMillis(0),
>+            absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(0))));
>+  EXPECT_EQ(absl::FromUnixMillis(1),
>+            absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(1))));
>+
>+  // Chrono doesn't define exactly its range and precision (neither does
>+  // absl::Time), so let's simply test +/- ~100 years to make sure things work.
>+  const auto century_sec = 60 * 60 * 24 * 365 * int64_t{100};
>+  const auto century = std::chrono::seconds(century_sec);
>+  const auto chrono_future = MakeChronoUnixTime(century);
>+  const auto chrono_past = MakeChronoUnixTime(-century);
>+  EXPECT_EQ(absl::FromUnixSeconds(century_sec),
>+            absl::FromChrono(chrono_future));
>+  EXPECT_EQ(absl::FromUnixSeconds(-century_sec), absl::FromChrono(chrono_past));
>+
>+  // Roundtrip them both back to chrono.
>+  EXPECT_EQ(chrono_future,
>+            absl::ToChronoTime(absl::FromUnixSeconds(century_sec)));
>+  EXPECT_EQ(chrono_past,
>+            absl::ToChronoTime(absl::FromUnixSeconds(-century_sec)));
>+}
>+
>+TEST(Time, ToChronoTime) {
>+  EXPECT_EQ(std::chrono::system_clock::from_time_t(-1),
>+            absl::ToChronoTime(absl::FromTimeT(-1)));
>+  EXPECT_EQ(std::chrono::system_clock::from_time_t(0),
>+            absl::ToChronoTime(absl::FromTimeT(0)));
>+  EXPECT_EQ(std::chrono::system_clock::from_time_t(1),
>+            absl::ToChronoTime(absl::FromTimeT(1)));
>+
>+  EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(-1)),
>+            absl::ToChronoTime(absl::FromUnixMillis(-1)));
>+  EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(0)),
>+            absl::ToChronoTime(absl::FromUnixMillis(0)));
>+  EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(1)),
>+            absl::ToChronoTime(absl::FromUnixMillis(1)));
>+
>+  // Time before the Unix epoch should floor, not trunc.
>+  const auto tick = absl::Nanoseconds(1) / 4;
>+  EXPECT_EQ(std::chrono::system_clock::from_time_t(0) -
>+                std::chrono::system_clock::duration(1),
>+            absl::ToChronoTime(absl::UnixEpoch() - tick));
>+}
>+
>+TEST(Time, ConvertDateTime) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  const absl::TimeZone goog =
>+      absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  const absl::TimeZone nyc =
>+      absl::time_internal::LoadTimeZone("America/New_York");
>+  const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)";
>+
>+  // A simple case of normalization.
>+  absl::TimeConversion oct32 = ConvertDateTime(2013, 10, 32, 8, 30, 0, goog);
>+  EXPECT_TRUE(oct32.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, oct32.kind);
>+  absl::TimeConversion nov01 = ConvertDateTime(2013, 11, 1, 8, 30, 0, goog);
>+  EXPECT_FALSE(nov01.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, nov01.kind);
>+  EXPECT_EQ(oct32.pre, nov01.pre);
>+  EXPECT_EQ("Fri,  1 Nov 2013 08:30:00 -0700 (PDT)",
>+            absl::FormatTime(fmt, nov01.pre, goog));
>+
>+  // A Spring DST transition, when there is a gap in civil time
>+  // and we prefer the later of the possible interpretations of a
>+  // non-existent time.
>+  absl::TimeConversion mar13 = ConvertDateTime(2011, 3, 13, 2, 15, 0, nyc);
>+  EXPECT_FALSE(mar13.normalized);
>+  EXPECT_EQ(absl::TimeConversion::SKIPPED, mar13.kind);
>+  EXPECT_EQ("Sun, 13 Mar 2011 03:15:00 -0400 (EDT)",
>+            absl::FormatTime(fmt, mar13.pre, nyc));
>+  EXPECT_EQ("Sun, 13 Mar 2011 03:00:00 -0400 (EDT)",
>+            absl::FormatTime(fmt, mar13.trans, nyc));
>+  EXPECT_EQ("Sun, 13 Mar 2011 01:15:00 -0500 (EST)",
>+            absl::FormatTime(fmt, mar13.post, nyc));
>+  EXPECT_EQ(mar13.pre, absl::FromDateTime(2011, 3, 13, 2, 15, 0, nyc));
>+
>+  // A Fall DST transition, when civil times are repeated and
>+  // we prefer the earlier of the possible interpretations of an
>+  // ambiguous time.
>+  absl::TimeConversion nov06 = ConvertDateTime(2011, 11, 6, 1, 15, 0, nyc);
>+  EXPECT_FALSE(nov06.normalized);
>+  EXPECT_EQ(absl::TimeConversion::REPEATED, nov06.kind);
>+  EXPECT_EQ("Sun,  6 Nov 2011 01:15:00 -0400 (EDT)",
>+            absl::FormatTime(fmt, nov06.pre, nyc));
>+  EXPECT_EQ("Sun,  6 Nov 2011 01:00:00 -0500 (EST)",
>+            absl::FormatTime(fmt, nov06.trans, nyc));
>+  EXPECT_EQ("Sun,  6 Nov 2011 01:15:00 -0500 (EST)",
>+            absl::FormatTime(fmt, nov06.post, nyc));
>+  EXPECT_EQ(nov06.pre, absl::FromDateTime(2011, 11, 6, 1, 15, 0, nyc));
>+
>+  // Check that (time_t) -1 is handled correctly.
>+  absl::TimeConversion minus1 = ConvertDateTime(1969, 12, 31, 18, 59, 59, nyc);
>+  EXPECT_FALSE(minus1.normalized);
>+  EXPECT_EQ(absl::TimeConversion::UNIQUE, minus1.kind);
>+  EXPECT_EQ(-1, absl::ToTimeT(minus1.pre));
>+  EXPECT_EQ("Wed, 31 Dec 1969 18:59:59 -0500 (EST)",
>+            absl::FormatTime(fmt, minus1.pre, nyc));
>+  EXPECT_EQ("Wed, 31 Dec 1969 23:59:59 +0000 (UTC)",
>+            absl::FormatTime(fmt, minus1.pre, utc));
>+}
>+
>+// FromDateTime(year, mon, day, hour, min, sec, UTCTimeZone()) has
>+// a specialized fastpath implementation which we exercise here.
>+TEST(Time, FromDateTimeUTC) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)";
>+  const int kMax = std::numeric_limits<int>::max();
>+  const int kMin = std::numeric_limits<int>::min();
>+  absl::Time t;
>+
>+  // 292091940881 is the last positive year to use the fastpath.
>+  t = absl::FromDateTime(292091940881, kMax, kMax, kMax, kMax, kMax, utc);
>+  EXPECT_EQ("Fri, 25 Nov 292277026596 12:21:07 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+  t = absl::FromDateTime(292091940882, kMax, kMax, kMax, kMax, kMax, utc);
>+  EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc));  // no overflow
>+  t = absl::FromDateTime(
>+      std::numeric_limits<int64_t>::max(), kMax, kMax, kMax, kMax, kMax, utc);
>+  EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc));  // no overflow
>+
>+  // -292091936940 is the last negative year to use the fastpath.
>+  t = absl::FromDateTime(-292091936940, kMin, kMin, kMin, kMin, kMin, utc);
>+  EXPECT_EQ("Fri,  1 Nov -292277022657 10:37:52 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+  t = absl::FromDateTime(-292091936941, kMin, kMin, kMin, kMin, kMin, utc);
>+  EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc));  // no underflow
>+  t = absl::FromDateTime(
>+      std::numeric_limits<int64_t>::min(), kMin, kMin, kMin, kMin, kMin, utc);
>+  EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc));  // no overflow
>+
>+  // Check that we're counting leap years correctly.
>+  t = absl::FromDateTime(1900, 2, 28, 23, 59, 59, utc);
>+  EXPECT_EQ("Wed, 28 Feb 1900 23:59:59 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+  t = absl::FromDateTime(1900, 3, 1, 0, 0, 0, utc);
>+  EXPECT_EQ("Thu,  1 Mar 1900 00:00:00 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+  t = absl::FromDateTime(2000, 2, 29, 23, 59, 59, utc);
>+  EXPECT_EQ("Tue, 29 Feb 2000 23:59:59 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+  t = absl::FromDateTime(2000, 3, 1, 0, 0, 0, utc);
>+  EXPECT_EQ("Wed,  1 Mar 2000 00:00:00 +0000 (UTC)",
>+            absl::FormatTime(fmt, t, utc));
>+
>+  // Check normalization.
>+  const std::string ymdhms = "%Y-%m-%d %H:%M:%S";
>+  t = absl::FromDateTime(2015, 1, 1, 0, 0, 60, utc);
>+  EXPECT_EQ("2015-01-01 00:01:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 1, 0, 60, 0, utc);
>+  EXPECT_EQ("2015-01-01 01:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 1, 24, 0, 0, utc);
>+  EXPECT_EQ("2015-01-02 00:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 32, 0, 0, 0, utc);
>+  EXPECT_EQ("2015-02-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 13, 1, 0, 0, 0, utc);
>+  EXPECT_EQ("2016-01-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 13, 32, 60, 60, 60, utc);
>+  EXPECT_EQ("2016-02-03 13:01:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 1, 0, 0, -1, utc);
>+  EXPECT_EQ("2014-12-31 23:59:59", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 1, 0, -1, 0, utc);
>+  EXPECT_EQ("2014-12-31 23:59:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, 1, -1, 0, 0, utc);
>+  EXPECT_EQ("2014-12-31 23:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, 1, -1, 0, 0, 0, utc);
>+  EXPECT_EQ("2014-12-30 00:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, -1, 1, 0, 0, 0, utc);
>+  EXPECT_EQ("2014-11-01 00:00:00", absl::FormatTime(ymdhms, t, utc));
>+  t = absl::FromDateTime(2015, -1, -1, -1, -1, -1, utc);
>+  EXPECT_EQ("2014-10-29 22:58:59", absl::FormatTime(ymdhms, t, utc));
>+}
>+
>+TEST(Time, ToTM) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+
>+  // Compares the results of ToTM() to gmtime_r() for lots of times over the
>+  // course of a few days.
>+  const absl::Time start = absl::FromDateTime(2014, 1, 2, 3, 4, 5, utc);
>+  const absl::Time end = absl::FromDateTime(2014, 1, 5, 3, 4, 5, utc);
>+  for (absl::Time t = start; t < end; t += absl::Seconds(30)) {
>+    const struct tm tm_bt = ToTM(t, utc);
>+    const time_t tt = absl::ToTimeT(t);
>+    struct tm tm_lc;
>+#ifdef _WIN32
>+    gmtime_s(&tm_lc, &tt);
>+#else
>+    gmtime_r(&tt, &tm_lc);
>+#endif
>+    EXPECT_EQ(tm_lc.tm_year, tm_bt.tm_year);
>+    EXPECT_EQ(tm_lc.tm_mon, tm_bt.tm_mon);
>+    EXPECT_EQ(tm_lc.tm_mday, tm_bt.tm_mday);
>+    EXPECT_EQ(tm_lc.tm_hour, tm_bt.tm_hour);
>+    EXPECT_EQ(tm_lc.tm_min, tm_bt.tm_min);
>+    EXPECT_EQ(tm_lc.tm_sec, tm_bt.tm_sec);
>+    EXPECT_EQ(tm_lc.tm_wday, tm_bt.tm_wday);
>+    EXPECT_EQ(tm_lc.tm_yday, tm_bt.tm_yday);
>+    EXPECT_EQ(tm_lc.tm_isdst, tm_bt.tm_isdst);
>+
>+    ASSERT_FALSE(HasFailure());
>+  }
>+
>+  // Checks that the tm_isdst field is correct when in standard time.
>+  const absl::TimeZone nyc =
>+      absl::time_internal::LoadTimeZone("America/New_York");
>+  absl::Time t = absl::FromDateTime(2014, 3, 1, 0, 0, 0, nyc);
>+  struct tm tm = ToTM(t, nyc);
>+  EXPECT_FALSE(tm.tm_isdst);
>+
>+  // Checks that the tm_isdst field is correct when in daylight time.
>+  t = absl::FromDateTime(2014, 4, 1, 0, 0, 0, nyc);
>+  tm = ToTM(t, nyc);
>+  EXPECT_TRUE(tm.tm_isdst);
>+
>+  // Checks overflow.
>+  tm = ToTM(absl::InfiniteFuture(), nyc);
>+  EXPECT_EQ(std::numeric_limits<int>::max() - 1900, tm.tm_year);
>+  EXPECT_EQ(11, tm.tm_mon);
>+  EXPECT_EQ(31, tm.tm_mday);
>+  EXPECT_EQ(23, tm.tm_hour);
>+  EXPECT_EQ(59, tm.tm_min);
>+  EXPECT_EQ(59, tm.tm_sec);
>+  EXPECT_EQ(4, tm.tm_wday);
>+  EXPECT_EQ(364, tm.tm_yday);
>+  EXPECT_FALSE(tm.tm_isdst);
>+
>+  // Checks underflow.
>+  tm = ToTM(absl::InfinitePast(), nyc);
>+  EXPECT_EQ(std::numeric_limits<int>::min(), tm.tm_year);
>+  EXPECT_EQ(0, tm.tm_mon);
>+  EXPECT_EQ(1, tm.tm_mday);
>+  EXPECT_EQ(0, tm.tm_hour);
>+  EXPECT_EQ(0, tm.tm_min);
>+  EXPECT_EQ(0, tm.tm_sec);
>+  EXPECT_EQ(0, tm.tm_wday);
>+  EXPECT_EQ(0, tm.tm_yday);
>+  EXPECT_FALSE(tm.tm_isdst);
>+}
>+
>+TEST(Time, FromTM) {
>+  const absl::TimeZone nyc =
>+      absl::time_internal::LoadTimeZone("America/New_York");
>+
>+  // Verifies that tm_isdst doesn't affect anything when the time is unique.
>+  struct tm tm;
>+  std::memset(&tm, 0, sizeof(tm));
>+  tm.tm_year = 2014 - 1900;
>+  tm.tm_mon = 6 - 1;
>+  tm.tm_mday = 28;
>+  tm.tm_hour = 1;
>+  tm.tm_min = 2;
>+  tm.tm_sec = 3;
>+  tm.tm_isdst = -1;
>+  absl::Time t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc));  // DST
>+  tm.tm_isdst = 0;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc));  // DST
>+  tm.tm_isdst = 1;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc));  // DST
>+
>+  // Adjusts tm to refer to an ambiguous time.
>+  tm.tm_year = 2014 - 1900;
>+  tm.tm_mon = 11 - 1;
>+  tm.tm_mday = 2;
>+  tm.tm_hour = 1;
>+  tm.tm_min = 30;
>+  tm.tm_sec = 42;
>+  tm.tm_isdst = -1;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc));  // DST
>+  tm.tm_isdst = 0;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-11-02T01:30:42-05:00", absl::FormatTime(t, nyc));  // STD
>+  tm.tm_isdst = 1;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc));  // DST
>+
>+  // Adjusts tm to refer to a skipped time.
>+  tm.tm_year = 2014 - 1900;
>+  tm.tm_mon = 3 - 1;
>+  tm.tm_mday = 9;
>+  tm.tm_hour = 2;
>+  tm.tm_min = 30;
>+  tm.tm_sec = 42;
>+  tm.tm_isdst = -1;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc));  // DST
>+  tm.tm_isdst = 0;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-03-09T01:30:42-05:00", absl::FormatTime(t, nyc));  // STD
>+  tm.tm_isdst = 1;
>+  t = FromTM(tm, nyc);
>+  EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc));  // DST
>+}
>+
>+TEST(Time, TMRoundTrip) {
>+  const absl::TimeZone nyc =
>+      absl::time_internal::LoadTimeZone("America/New_York");
>+
>+  // Test round-tripping across a skipped transition
>+  absl::Time start = absl::FromDateTime(2014, 3, 9, 0, 0, 0, nyc);
>+  absl::Time end = absl::FromDateTime(2014, 3, 9, 4, 0, 0, nyc);
>+  for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
>+    struct tm tm = ToTM(t, nyc);
>+    absl::Time rt = FromTM(tm, nyc);
>+    EXPECT_EQ(rt, t);
>+  }
>+
>+  // Test round-tripping across an ambiguous transition
>+  start = absl::FromDateTime(2014, 11, 2, 0, 0, 0, nyc);
>+  end = absl::FromDateTime(2014, 11, 2, 4, 0, 0, nyc);
>+  for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
>+    struct tm tm = ToTM(t, nyc);
>+    absl::Time rt = FromTM(tm, nyc);
>+    EXPECT_EQ(rt, t);
>+  }
>+
>+  // Test round-tripping of unique instants crossing a day boundary
>+  start = absl::FromDateTime(2014, 6, 27, 22, 0, 0, nyc);
>+  end = absl::FromDateTime(2014, 6, 28, 4, 0, 0, nyc);
>+  for (absl::Time t = start; t < end; t += absl::Minutes(1)) {
>+    struct tm tm = ToTM(t, nyc);
>+    absl::Time rt = FromTM(tm, nyc);
>+    EXPECT_EQ(rt, t);
>+  }
>+}
>+
>+TEST(Time, Range) {
>+  // The API's documented range is +/- 100 billion years.
>+  const absl::Duration range = absl::Hours(24) * 365.2425 * 100000000000;
>+
>+  // Arithmetic and comparison still works at +/-range around base values.
>+  absl::Time bases[2] = {absl::UnixEpoch(), absl::Now()};
>+  for (const auto base : bases) {
>+    absl::Time bottom = base - range;
>+    EXPECT_GT(bottom, bottom - absl::Nanoseconds(1));
>+    EXPECT_LT(bottom, bottom + absl::Nanoseconds(1));
>+    absl::Time top = base + range;
>+    EXPECT_GT(top, top - absl::Nanoseconds(1));
>+    EXPECT_LT(top, top + absl::Nanoseconds(1));
>+    absl::Duration full_range = 2 * range;
>+    EXPECT_EQ(full_range, top - bottom);
>+    EXPECT_EQ(-full_range, bottom - top);
>+  }
>+}
>+
>+TEST(Time, Limits) {
>+  // It is an implementation detail that Time().rep_ == ZeroDuration(),
>+  // and that the resolution of a Duration is 1/4 of a nanosecond.
>+  const absl::Time zero;
>+  const absl::Time max =
>+      zero + absl::Seconds(std::numeric_limits<int64_t>::max()) +
>+      absl::Nanoseconds(999999999) + absl::Nanoseconds(3) / 4;
>+  const absl::Time min =
>+      zero + absl::Seconds(std::numeric_limits<int64_t>::min());
>+
>+  // Some simple max/min bounds checks.
>+  EXPECT_LT(max, absl::InfiniteFuture());
>+  EXPECT_GT(min, absl::InfinitePast());
>+  EXPECT_LT(zero, max);
>+  EXPECT_GT(zero, min);
>+  EXPECT_GE(absl::UnixEpoch(), min);
>+  EXPECT_LT(absl::UnixEpoch(), max);
>+
>+  // Check sign of Time differences.
>+  EXPECT_LT(absl::ZeroDuration(), max - zero);
>+  EXPECT_LT(absl::ZeroDuration(),
>+            zero - absl::Nanoseconds(1) / 4 - min);  // avoid zero - min
>+
>+  // Arithmetic works at max - 0.25ns and min + 0.25ns.
>+  EXPECT_GT(max, max - absl::Nanoseconds(1) / 4);
>+  EXPECT_LT(min, min + absl::Nanoseconds(1) / 4);
>+}
>+
>+TEST(Time, ConversionSaturation) {
>+  const absl::TimeZone utc = absl::UTCTimeZone();
>+  absl::Time t;
>+
>+  const auto max_time_t = std::numeric_limits<time_t>::max();
>+  const auto min_time_t = std::numeric_limits<time_t>::min();
>+  time_t tt = max_time_t - 1;
>+  t = absl::FromTimeT(tt);
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(max_time_t - 1, tt);
>+  t += absl::Seconds(1);
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(max_time_t, tt);
>+  t += absl::Seconds(1);  // no effect
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(max_time_t, tt);
>+
>+  tt = min_time_t + 1;
>+  t = absl::FromTimeT(tt);
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(min_time_t + 1, tt);
>+  t -= absl::Seconds(1);
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(min_time_t, tt);
>+  t -= absl::Seconds(1);  // no effect
>+  tt = absl::ToTimeT(t);
>+  EXPECT_EQ(min_time_t, tt);
>+
>+  const auto max_timeval_sec =
>+      std::numeric_limits<decltype(timeval::tv_sec)>::max();
>+  const auto min_timeval_sec =
>+      std::numeric_limits<decltype(timeval::tv_sec)>::min();
>+  timeval tv;
>+  tv.tv_sec = max_timeval_sec;
>+  tv.tv_usec = 999998;
>+  t = absl::TimeFromTimeval(tv);
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999998, tv.tv_usec);
>+  t += absl::Microseconds(1);
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999999, tv.tv_usec);
>+  t += absl::Microseconds(1);  // no effect
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(max_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(999999, tv.tv_usec);
>+
>+  tv.tv_sec = min_timeval_sec;
>+  tv.tv_usec = 1;
>+  t = absl::TimeFromTimeval(tv);
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(1, tv.tv_usec);
>+  t -= absl::Microseconds(1);
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(0, tv.tv_usec);
>+  t -= absl::Microseconds(1);  // no effect
>+  tv = ToTimeval(t);
>+  EXPECT_EQ(min_timeval_sec, tv.tv_sec);
>+  EXPECT_EQ(0, tv.tv_usec);
>+
>+  const auto max_timespec_sec =
>+      std::numeric_limits<decltype(timespec::tv_sec)>::max();
>+  const auto min_timespec_sec =
>+      std::numeric_limits<decltype(timespec::tv_sec)>::min();
>+  timespec ts;
>+  ts.tv_sec = max_timespec_sec;
>+  ts.tv_nsec = 999999998;
>+  t = absl::TimeFromTimespec(ts);
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999998, ts.tv_nsec);
>+  t += absl::Nanoseconds(1);
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999999, ts.tv_nsec);
>+  t += absl::Nanoseconds(1);  // no effect
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(max_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(999999999, ts.tv_nsec);
>+
>+  ts.tv_sec = min_timespec_sec;
>+  ts.tv_nsec = 1;
>+  t = absl::TimeFromTimespec(ts);
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(1, ts.tv_nsec);
>+  t -= absl::Nanoseconds(1);
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(0, ts.tv_nsec);
>+  t -= absl::Nanoseconds(1);  // no effect
>+  ts = absl::ToTimespec(t);
>+  EXPECT_EQ(min_timespec_sec, ts.tv_sec);
>+  EXPECT_EQ(0, ts.tv_nsec);
>+
>+  // Checks how Time::In() saturates on infinities.
>+  absl::Time::Breakdown bd = absl::InfiniteFuture().In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, std::numeric_limits<int64_t>::max(), 12, 31, 23,
>+                            59, 59, 0, false);
>+  EXPECT_EQ(absl::InfiniteDuration(), bd.subsecond);
>+  EXPECT_EQ(4, bd.weekday);  // Thursday
>+  EXPECT_EQ(365, bd.yearday);
>+  EXPECT_STREQ("-00", bd.zone_abbr);  // artifact of absl::Time::In()
>+  bd = absl::InfinitePast().In(utc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, std::numeric_limits<int64_t>::min(), 1, 1, 0, 0,
>+                            0, 0, false);
>+  EXPECT_EQ(-absl::InfiniteDuration(), bd.subsecond);
>+  EXPECT_EQ(7, bd.weekday);  // Sunday
>+  EXPECT_EQ(1, bd.yearday);
>+  EXPECT_STREQ("-00", bd.zone_abbr);  // artifact of absl::Time::In()
>+
>+  // Approach the maximal Time value from below.
>+  t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 6, utc);
>+  EXPECT_EQ("292277026596-12-04T15:30:06+00:00",
>+            absl::FormatTime(absl::RFC3339_full, t, utc));
>+  t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 7, utc);
>+  EXPECT_EQ("292277026596-12-04T15:30:07+00:00",
>+            absl::FormatTime(absl::RFC3339_full, t, utc));
>+  EXPECT_EQ(
>+      absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), t);
>+
>+  // Checks that we can also get the maximal Time value for a far-east zone.
>+  const absl::TimeZone plus14 = absl::FixedTimeZone(14 * 60 * 60);
>+  t = absl::FromDateTime(292277026596, 12, 5, 5, 30, 7, plus14);
>+  EXPECT_EQ("292277026596-12-05T05:30:07+14:00",
>+            absl::FormatTime(absl::RFC3339_full, t, plus14));
>+  EXPECT_EQ(
>+      absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), t);
>+
>+  // One second later should push us to infinity.
>+  t = absl::FromDateTime(292277026596, 12, 4, 15, 30, 8, utc);
>+  EXPECT_EQ("infinite-future", absl::FormatTime(absl::RFC3339_full, t, utc));
>+
>+  // Approach the minimal Time value from above.
>+  t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 53, utc);
>+  EXPECT_EQ("-292277022657-01-27T08:29:53+00:00",
>+            absl::FormatTime(absl::RFC3339_full, t, utc));
>+  t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 52, utc);
>+  EXPECT_EQ("-292277022657-01-27T08:29:52+00:00",
>+            absl::FormatTime(absl::RFC3339_full, t, utc));
>+  EXPECT_EQ(
>+      absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), t);
>+
>+  // Checks that we can also get the minimal Time value for a far-west zone.
>+  const absl::TimeZone minus12 = absl::FixedTimeZone(-12 * 60 * 60);
>+  t = absl::FromDateTime(-292277022657, 1, 26, 20, 29, 52, minus12);
>+  EXPECT_EQ("-292277022657-01-26T20:29:52-12:00",
>+            absl::FormatTime(absl::RFC3339_full, t, minus12));
>+  EXPECT_EQ(
>+      absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), t);
>+
>+  // One second before should push us to -infinity.
>+  t = absl::FromDateTime(-292277022657, 1, 27, 8, 29, 51, utc);
>+  EXPECT_EQ("infinite-past", absl::FormatTime(absl::RFC3339_full, t, utc));
>+}
>+
>+// In zones with POSIX-style recurring rules we use special logic to
>+// handle conversions in the distant future.  Here we check the limits
>+// of those conversions, particularly with respect to integer overflow.
>+TEST(Time, ExtendedConversionSaturation) {
>+  const absl::TimeZone syd =
>+      absl::time_internal::LoadTimeZone("Australia/Sydney");
>+  const absl::TimeZone nyc =
>+      absl::time_internal::LoadTimeZone("America/New_York");
>+  const absl::Time max =
>+      absl::FromUnixSeconds(std::numeric_limits<int64_t>::max());
>+  absl::Time::Breakdown bd;
>+  absl::Time t;
>+
>+  // The maximal time converted in each zone.
>+  bd = max.In(syd);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 292277026596, 12, 5, 2, 30, 7, 39600, true);
>+  t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 7, syd);
>+  EXPECT_EQ(max, t);
>+  bd = max.In(nyc);
>+  ABSL_INTERNAL_EXPECT_TIME(bd, 292277026596, 12, 4, 10, 30, 7, -18000, false);
>+  t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 7, nyc);
>+  EXPECT_EQ(max, t);
>+
>+  // One second later should push us to infinity.
>+  t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 8, syd);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+  t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 8, nyc);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+
>+  // And we should stick there.
>+  t = absl::FromDateTime(292277026596, 12, 5, 2, 30, 9, syd);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+  t = absl::FromDateTime(292277026596, 12, 4, 10, 30, 9, nyc);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+
>+  // All the way up to a saturated date/time, without overflow.
>+  t = absl::FromDateTime(
>+      std::numeric_limits<int64_t>::max(), 12, 31, 23, 59, 59, syd);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+  t = absl::FromDateTime(
>+      std::numeric_limits<int64_t>::max(), 12, 31, 23, 59, 59, nyc);
>+  EXPECT_EQ(absl::InfiniteFuture(), t);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_zone_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_zone_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..43d919040445cab663550da3916ef23f0969c45b
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/time/time_zone_test.cc
>@@ -0,0 +1,97 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/time/internal/cctz/include/cctz/time_zone.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/time/internal/test_util.h"
>+#include "absl/time/time.h"
>+
>+namespace cctz = absl::time_internal::cctz;
>+
>+namespace {
>+
>+TEST(TimeZone, ValueSemantics) {
>+  absl::TimeZone tz;
>+  absl::TimeZone tz2 = tz;  // Copy-construct
>+  EXPECT_EQ(tz, tz2);
>+  tz2 = tz;  // Copy-assign
>+  EXPECT_EQ(tz, tz2);
>+}
>+
>+TEST(TimeZone, Equality) {
>+  absl::TimeZone a, b;
>+  EXPECT_EQ(a, b);
>+  EXPECT_EQ(a.name(), b.name());
>+
>+  absl::TimeZone implicit_utc;
>+  absl::TimeZone explicit_utc = absl::UTCTimeZone();
>+  EXPECT_EQ(implicit_utc, explicit_utc);
>+  EXPECT_EQ(implicit_utc.name(), explicit_utc.name());
>+
>+  absl::TimeZone la = absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York");
>+  EXPECT_NE(la, nyc);
>+}
>+
>+TEST(TimeZone, CCTZConversion) {
>+  const cctz::time_zone cz = cctz::utc_time_zone();
>+  const absl::TimeZone tz(cz);
>+  EXPECT_EQ(cz, cctz::time_zone(tz));
>+}
>+
>+TEST(TimeZone, DefaultTimeZones) {
>+  absl::TimeZone tz;
>+  EXPECT_EQ("UTC", absl::TimeZone().name());
>+  EXPECT_EQ("UTC", absl::UTCTimeZone().name());
>+}
>+
>+TEST(TimeZone, FixedTimeZone) {
>+  const absl::TimeZone tz = absl::FixedTimeZone(123);
>+  const cctz::time_zone cz = cctz::fixed_time_zone(cctz::seconds(123));
>+  EXPECT_EQ(tz, absl::TimeZone(cz));
>+}
>+
>+TEST(TimeZone, LocalTimeZone) {
>+  const absl::TimeZone local_tz = absl::LocalTimeZone();
>+  absl::TimeZone tz = absl::time_internal::LoadTimeZone("localtime");
>+  EXPECT_EQ(tz, local_tz);
>+}
>+
>+TEST(TimeZone, NamedTimeZones) {
>+  absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York");
>+  EXPECT_EQ("America/New_York", nyc.name());
>+  absl::TimeZone syd = absl::time_internal::LoadTimeZone("Australia/Sydney");
>+  EXPECT_EQ("Australia/Sydney", syd.name());
>+  absl::TimeZone fixed = absl::FixedTimeZone((((3 * 60) + 25) * 60) + 45);
>+  EXPECT_EQ("Fixed/UTC+03:25:45", fixed.name());
>+}
>+
>+TEST(TimeZone, Failures) {
>+  absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz));
>+  EXPECT_EQ(absl::UTCTimeZone(), tz);  // guaranteed fallback to UTC
>+
>+  // Ensures that the load still fails on a subsequent attempt.
>+  tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz));
>+  EXPECT_EQ(absl::UTCTimeZone(), tz);  // guaranteed fallback to UTC
>+
>+  // Loading an empty std::string timezone should fail.
>+  tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
>+  EXPECT_FALSE(LoadTimeZone("", &tz));
>+  EXPECT_EQ(absl::UTCTimeZone(), tz);  // guaranteed fallback to UTC
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..096c119e638cbd35040550bed10b192e7b467401
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.bazel
>@@ -0,0 +1,280 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+    "ABSL_EXCEPTIONS_FLAG",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "any",
>+    hdrs = ["any.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":bad_any_cast",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+        "//absl/utility",
>+    ],
>+)
>+
>+cc_library(
>+    name = "bad_any_cast",
>+    hdrs = ["bad_any_cast.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":bad_any_cast_impl",
>+        "//absl/base:config",
>+    ],
>+)
>+
>+cc_library(
>+    name = "bad_any_cast_impl",
>+    srcs = [
>+        "bad_any_cast.cc",
>+        "bad_any_cast.h",
>+    ],
>+    copts = ABSL_EXCEPTIONS_FLAG + ABSL_DEFAULT_COPTS,
>+    visibility = ["//visibility:private"],
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:config",
>+    ],
>+)
>+
>+cc_test(
>+    name = "any_test",
>+    size = "small",
>+    srcs = [
>+        "any_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":any",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/base:exception_testing",
>+        "//absl/container:test_instance_tracker",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "any_test_noexceptions",
>+    size = "small",
>+    srcs = [
>+        "any_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":any",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/base:exception_testing",
>+        "//absl/container:test_instance_tracker",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "any_exception_safety_test",
>+    srcs = ["any_exception_safety_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":any",
>+        "//absl/base:exception_safety_testing",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "span",
>+    hdrs = ["span.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/algorithm",
>+        "//absl/base:core_headers",
>+        "//absl/base:throw_delegate",
>+        "//absl/meta:type_traits",
>+    ],
>+)
>+
>+cc_test(
>+    name = "span_test",
>+    size = "small",
>+    srcs = ["span_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":span",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/base:exception_testing",
>+        "//absl/container:fixed_array",
>+        "//absl/container:inlined_vector",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "span_test_noexceptions",
>+    size = "small",
>+    srcs = ["span_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":span",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/base:exception_testing",
>+        "//absl/container:fixed_array",
>+        "//absl/container:inlined_vector",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "optional",
>+    srcs = ["optional.cc"],
>+    hdrs = ["optional.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":bad_optional_access",
>+        "//absl/base:config",
>+        "//absl/memory",
>+        "//absl/meta:type_traits",
>+        "//absl/utility",
>+    ],
>+)
>+
>+cc_library(
>+    name = "bad_optional_access",
>+    srcs = ["bad_optional_access.cc"],
>+    hdrs = ["bad_optional_access.h"],
>+    copts = ABSL_DEFAULT_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:config",
>+    ],
>+)
>+
>+cc_library(
>+    name = "bad_variant_access",
>+    srcs = ["bad_variant_access.cc"],
>+    hdrs = ["bad_variant_access.h"],
>+    copts = ABSL_EXCEPTIONS_FLAG + ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base",
>+        "//absl/base:config",
>+    ],
>+)
>+
>+cc_test(
>+    name = "optional_test",
>+    size = "small",
>+    srcs = [
>+        "optional_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":optional",
>+        "//absl/base",
>+        "//absl/base:config",
>+        "//absl/meta:type_traits",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "optional_exception_safety_test",
>+    srcs = [
>+        "optional_exception_safety_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":optional",
>+        "//absl/base:exception_safety_testing",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_library(
>+    name = "variant",
>+    srcs = ["internal/variant.h"],
>+    hdrs = ["variant.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        ":bad_variant_access",
>+        "//absl/base:base_internal",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/meta:type_traits",
>+        "//absl/utility",
>+    ],
>+)
>+
>+cc_test(
>+    name = "variant_test",
>+    size = "small",
>+    srcs = ["variant_test.cc"],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":variant",
>+        "//absl/base:config",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "//absl/meta:type_traits",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "variant_benchmark",
>+    srcs = [
>+        "variant_benchmark.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS,
>+    tags = ["benchmark"],
>+    deps = [
>+        ":variant",
>+        "//absl/utility",
>+        "@com_github_google_benchmark//:benchmark_main",
>+    ],
>+)
>+
>+cc_test(
>+    name = "variant_exception_safety_test",
>+    size = "small",
>+    srcs = [
>+        "variant_exception_safety_test.cc",
>+    ],
>+    copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
>+    deps = [
>+        ":variant",
>+        "//absl/base:exception_safety_testing",
>+        "//absl/memory",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..fd7e89dee34c3b32905a7fa78fbfbfe2abb01e55
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/BUILD.gn
>@@ -0,0 +1,172 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("any") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "any.h",
>+  ]
>+  deps = [
>+    ":bad_any_cast",
>+    "../base:config",
>+    "../base:core_headers",
>+    "../meta:type_traits",
>+    "../utility",
>+  ]
>+}
>+
>+source_set("bad_any_cast") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "bad_any_cast.h",
>+  ]
>+  deps = [
>+    ":bad_any_cast_impl",
>+    "../base:config",
>+  ]
>+}
>+
>+source_set("bad_any_cast_impl") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "bad_any_cast.cc",
>+  ]
>+  public = [
>+    "bad_any_cast.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:config",
>+  ]
>+  visibility = []
>+  visibility += [ ":*" ]
>+}
>+
>+source_set("span") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "span.h",
>+  ]
>+  deps = [
>+    "../algorithm",
>+    "../base:core_headers",
>+    "../base:throw_delegate",
>+    "../meta:type_traits",
>+  ]
>+}
>+
>+source_set("optional") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "optional.cc",
>+  ]
>+  public = [
>+    "optional.h",
>+  ]
>+  deps = [
>+    ":bad_optional_access",
>+    "../base:config",
>+    "../memory",
>+    "../meta:type_traits",
>+    "../utility",
>+  ]
>+}
>+
>+source_set("bad_optional_access") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "bad_optional_access.cc",
>+  ]
>+  public = [
>+    "bad_optional_access.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:config",
>+  ]
>+}
>+
>+source_set("bad_variant_access") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "bad_variant_access.cc",
>+  ]
>+  public = [
>+    "bad_variant_access.h",
>+  ]
>+  deps = [
>+    "../base",
>+    "../base:config",
>+  ]
>+}
>+
>+source_set("variant") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  sources = [
>+    "internal/variant.h",
>+  ]
>+  public = [
>+    "variant.h",
>+  ]
>+  deps = [
>+    ":bad_variant_access",
>+    "../base:base_internal",
>+    "../base:config",
>+    "../base:core_headers",
>+    "../meta:type_traits",
>+    "../utility",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..2f2e3a77808933caacf462a3a8b805773ae506ef
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/CMakeLists.txt
>@@ -0,0 +1,228 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+list(APPEND TYPES_PUBLIC_HEADERS
>+  "any.h"
>+  "bad_any_cast.h"
>+  "bad_optional_access.h"
>+  "optional.h"
>+  "span.h"
>+  "variant.h"
>+)
>+
>+
>+# any library
>+absl_header_library(
>+  TARGET
>+    absl_any
>+  PUBLIC_LIBRARIES
>+    absl::bad_any_cast
>+    absl::base
>+    absl::meta
>+    absl::utility
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+  EXPORT_NAME
>+    any
>+)
>+
>+# span library
>+absl_header_library(
>+  TARGET
>+    absl_span
>+  PUBLIC_LIBRARIES
>+    absl::utility
>+  EXPORT_NAME
>+    span
>+)
>+
>+
>+# bad_any_cast library
>+list(APPEND BAD_ANY_CAST_SRC
>+  "bad_any_cast.cc"
>+  ${TYPES_PUBLIC_HEADERS}
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_bad_any_cast
>+  SOURCES
>+    ${BAD_ANY_CAST_SRC}
>+  PUBLIC_LIBRARIES
>+  EXPORT_NAME
>+    bad_any_cast
>+)
>+
>+
>+# optional library
>+list(APPEND OPTIONAL_SRC
>+  "optional.cc"
>+)
>+
>+absl_library(
>+  TARGET
>+    absl_optional
>+  SOURCES
>+    ${OPTIONAL_SRC}
>+  PUBLIC_LIBRARIES
>+    absl::bad_optional_access
>+    absl::base
>+    absl::memory
>+    absl::meta
>+    absl::utility
>+  EXPORT_NAME
>+    optional
>+)
>+
>+
>+set(BAD_OPTIONAL_ACCESS_SRC "bad_optional_access.cc")
>+set(BAD_OPTIONAL_ACCESS_LIBRARIES absl::base)
>+
>+absl_library(
>+  TARGET
>+    absl_bad_optional_access
>+  SOURCES
>+    ${BAD_OPTIONAL_ACCESS_SRC}
>+  PUBLIC_LIBRARIES
>+    ${BAD_OPTIONAL_ACCESS_PUBLIC_LIBRARIES}
>+  EXPORT_NAME
>+    bad_optional_access
>+)
>+
>+# variant library
>+absl_library(
>+  TARGET
>+    absl_variant
>+  SOURCES
>+    "bad_variant_access.h" "bad_variant_access.cc" "variant.h" "internal/variant.h"
>+  PUBLIC_LIBRARIES
>+    absl::base absl::meta absl::utility
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+  EXPORT_NAME
>+    variant
>+)
>+
>+#
>+## TESTS
>+#
>+
>+
>+# test any_test
>+set(ANY_TEST_SRC "any_test.cc")
>+set(ANY_TEST_PUBLIC_LIBRARIES absl::base absl::throw_delegate absl::any absl::bad_any_cast test_instance_tracker_lib)
>+
>+absl_test(
>+  TARGET
>+    any_test
>+  SOURCES
>+    ${ANY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ANY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+# test any_test_noexceptions
>+absl_test(
>+  TARGET
>+    any_test_noexceptions
>+  SOURCES
>+    ${ANY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ANY_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+# test any_exception_safety_test
>+set(ANY_EXCEPTION_SAFETY_TEST_SRC "any_exception_safety_test.cc")
>+set(ANY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES
>+  absl::any
>+  absl::base
>+  absl_base_internal_exception_safety_testing
>+)
>+
>+absl_test(
>+  TARGET
>+    any_exception_safety_test
>+  SOURCES
>+    ${ANY_EXCEPTION_SAFETY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${ANY_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+# test span_test
>+set(SPAN_TEST_SRC "span_test.cc")
>+set(SPAN_TEST_PUBLIC_LIBRARIES absl::base absl::strings absl::throw_delegate absl::span test_instance_tracker_lib)
>+
>+absl_test(
>+  TARGET
>+    span_test
>+  SOURCES
>+    ${SPAN_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SPAN_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>+
>+
>+# test span_test_noexceptions
>+absl_test(
>+  TARGET
>+    span_test_noexceptions
>+  SOURCES
>+    ${SPAN_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${SPAN_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+
>+# test optional_test
>+set(OPTIONAL_TEST_SRC "optional_test.cc")
>+set(OPTIONAL_TEST_PUBLIC_LIBRARIES absl::base absl::throw_delegate absl::optional absl_bad_optional_access)
>+
>+absl_test(
>+  TARGET
>+    optional_test
>+  SOURCES
>+    ${OPTIONAL_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${OPTIONAL_TEST_PUBLIC_LIBRARIES}
>+)
>+
>+
>+# test optional_exception_safety_test
>+set(OPTIONAL_EXCEPTION_SAFETY_TEST_SRC "optional_exception_safety_test.cc")
>+set(OPTIONAL_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES
>+  absl::optional
>+  absl_base_internal_exception_safety_testing
>+)
>+
>+absl_test(
>+  TARGET
>+    optional_exception_safety_test
>+  SOURCES
>+    ${OPTIONAL_EXCEPTION_SAFETY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${OPTIONAL_EXCEPTION_SAFETY_TEST_PUBLIC_LIBRARIES}
>+  PRIVATE_COMPILE_FLAGS
>+    ${ABSL_EXCEPTIONS_FLAG}
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a973c6dab7e611feef430471538d2853a99ef223
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any.h
>@@ -0,0 +1,539 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// any.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file define the `absl::any` type for holding a type-safe value
>+// of any type. The 'absl::any` type is useful for providing a way to hold
>+// something that is, as yet, unspecified. Such unspecified types
>+// traditionally are passed between API boundaries until they are later cast to
>+// their "destination" types. To cast to such a destination type, use
>+// `absl::any_cast()`. Note that when casting an `absl::any`, you must cast it
>+// to an explicit type; implicit conversions will throw.
>+//
>+// Example:
>+//
>+//   auto a = absl::any(65);
>+//   absl::any_cast<int>(a);         // 65
>+//   absl::any_cast<char>(a);        // throws absl::bad_any_cast
>+//   absl::any_cast<std::string>(a); // throws absl::bad_any_cast
>+//
>+// `absl::any` is a C++11 compatible version of the C++17 `std::any` abstraction
>+// and is designed to be a drop-in replacement for code compliant with C++17.
>+//
>+// Traditionally, the behavior of casting to a temporary unspecified type has
>+// been accomplished with the `void *` paradigm, where the pointer was to some
>+// other unspecified type. `absl::any` provides an "owning" version of `void *`
>+// that avoids issues of pointer management.
>+//
>+// Note: just as in the case of `void *`, use of `absl::any` (and its C++17
>+// version `std::any`) is a code smell indicating that your API might not be
>+// constructed correctly. We have seen that most uses of `any` are unwarranted,
>+// and `absl::any`, like `std::any`, is difficult to use properly. Before using
>+// this abstraction, make sure that you should not instead be rewriting your
>+// code to be more specific.
>+//
>+// Abseil expects to release an `absl::variant` type shortly (a C++11 compatible
>+// version of the C++17 `std::variant), which is generally preferred for use
>+// over `absl::any`.
>+#ifndef ABSL_TYPES_ANY_H_
>+#define ABSL_TYPES_ANY_H_
>+
>+#include "absl/base/config.h"
>+#include "absl/utility/utility.h"
>+
>+#ifdef ABSL_HAVE_STD_ANY
>+
>+#include <any>
>+
>+namespace absl {
>+using std::any;
>+using std::any_cast;
>+using std::bad_any_cast;
>+using std::make_any;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_ANY
>+
>+#include <algorithm>
>+#include <cstddef>
>+#include <initializer_list>
>+#include <memory>
>+#include <stdexcept>
>+#include <type_traits>
>+#include <typeinfo>
>+#include <utility>
>+
>+#include "absl/base/macros.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/types/bad_any_cast.h"
>+
>+// NOTE: This macro is an implementation detail that is undefined at the bottom
>+// of the file. It is not intended for expansion directly from user code.
>+#ifdef ABSL_ANY_DETAIL_HAS_RTTI
>+#error ABSL_ANY_DETAIL_HAS_RTTI cannot be directly set
>+#elif !defined(__GNUC__) || defined(__GXX_RTTI)
>+#define ABSL_ANY_DETAIL_HAS_RTTI 1
>+#endif  // !defined(__GNUC__) || defined(__GXX_RTTI)
>+
>+namespace absl {
>+
>+namespace any_internal {
>+
>+template <typename Type>
>+struct TypeTag {
>+  constexpr static char dummy_var = 0;
>+};
>+
>+template <typename Type>
>+constexpr char TypeTag<Type>::dummy_var;
>+
>+// FastTypeId<Type>() evaluates at compile/link-time to a unique pointer for the
>+// passed in type. These are meant to be good match for keys into maps or
>+// straight up comparisons.
>+template<typename Type>
>+constexpr inline const void* FastTypeId() {
>+  return &TypeTag<Type>::dummy_var;
>+}
>+
>+}  // namespace any_internal
>+
>+class any;
>+
>+// swap()
>+//
>+// Swaps two `absl::any` values. Equivalent to `x.swap(y) where `x` and `y` are
>+// `absl::any` types.
>+void swap(any& x, any& y) noexcept;
>+
>+// make_any()
>+//
>+// Constructs an `absl::any` of type `T` with the given arguments.
>+template <typename T, typename... Args>
>+any make_any(Args&&... args);
>+
>+// Overload of `absl::make_any()` for constructing an `absl::any` type from an
>+// initializer list.
>+template <typename T, typename U, typename... Args>
>+any make_any(std::initializer_list<U> il, Args&&... args);
>+
>+// any_cast()
>+//
>+// Statically casts the value of a `const absl::any` type to the given type.
>+// This function will throw `absl::bad_any_cast` if the stored value type of the
>+// `absl::any` does not match the cast.
>+//
>+// `any_cast()` can also be used to get a reference to the internal storage iff
>+// a reference type is passed as its `ValueType`:
>+//
>+// Example:
>+//
>+//   absl::any my_any = std::vector<int>();
>+//   absl::any_cast<std::vector<int>&>(my_any).push_back(42);
>+template <typename ValueType>
>+ValueType any_cast(const any& operand);
>+
>+// Overload of `any_cast()` to statically cast the value of a non-const
>+// `absl::any` type to the given type. This function will throw
>+// `absl::bad_any_cast` if the stored value type of the `absl::any` does not
>+// match the cast.
>+template <typename ValueType>
>+ValueType any_cast(any& operand);  // NOLINT(runtime/references)
>+
>+// Overload of `any_cast()` to statically cast the rvalue of an `absl::any`
>+// type. This function will throw `absl::bad_any_cast` if the stored value type
>+// of the `absl::any` does not match the cast.
>+template <typename ValueType>
>+ValueType any_cast(any&& operand);
>+
>+// Overload of `any_cast()` to statically cast the value of a const pointer
>+// `absl::any` type to the given pointer type, or `nullptr` if the stored value
>+// type of the `absl::any` does not match the cast.
>+template <typename ValueType>
>+const ValueType* any_cast(const any* operand) noexcept;
>+
>+// Overload of `any_cast()` to statically cast the value of a pointer
>+// `absl::any` type to the given pointer type, or `nullptr` if the stored value
>+// type of the `absl::any` does not match the cast.
>+template <typename ValueType>
>+ValueType* any_cast(any* operand) noexcept;
>+
>+// -----------------------------------------------------------------------------
>+// absl::any
>+// -----------------------------------------------------------------------------
>+//
>+// An `absl::any` object provides the facility to either store an instance of a
>+// type, known as the "contained object", or no value. An `absl::any` is used to
>+// store values of types that are unknown at compile time. The `absl::any`
>+// object, when containing a value, must contain a value type; storing a
>+// reference type is neither desired nor supported.
>+//
>+// An `absl::any` can only store a type that is copy-constructable; move-only
>+// types are not allowed within an `any` object.
>+//
>+// Example:
>+//
>+//   auto a = absl::any(65);                 // Literal, copyable
>+//   auto b = absl::any(std::vector<int>()); // Default-initialized, copyable
>+//   std::unique_ptr<Foo> my_foo;
>+//   auto c = absl::any(std::move(my_foo));  // Error, not copy-constructable
>+//
>+// Note that `absl::any` makes use of decayed types (`absl::decay_t` in this
>+// context) to remove const-volatile qualifiers (known as "cv qualifiers"),
>+// decay functions to function pointers, etc. We essentially "decay" a given
>+// type into its essential type.
>+//
>+// `absl::any` makes use of decayed types when determining the basic type `T` of
>+// the value to store in the any's contained object. In the documentation below,
>+// we explicitly denote this by using the phrase "a decayed type of `T`".
>+//
>+// Example:
>+//
>+//   const int a = 4;
>+//   absl::any foo(a);  // Decay ensures we store an "int", not a "const int&".
>+//
>+//   void my_function() {}
>+//   absl::any bar(my_function);  // Decay ensures we store a function pointer.
>+//
>+// `absl::any` is a C++11 compatible version of the C++17 `std::any` abstraction
>+// and is designed to be a drop-in replacement for code compliant with C++17.
>+class any {
>+ private:
>+  template <typename T>
>+  struct IsInPlaceType;
>+
>+ public:
>+  // Constructors
>+
>+  // Constructs an empty `absl::any` object (`any::has_value()` will return
>+  // `false`).
>+  constexpr any() noexcept;
>+
>+  // Copy constructs an `absl::any` object with a "contained object" of the
>+  // passed type of `other` (or an empty `absl::any` if `other.has_value()` is
>+  // `false`.
>+  any(const any& other)
>+      : obj_(other.has_value() ? other.obj_->Clone()
>+                               : std::unique_ptr<ObjInterface>()) {}
>+
>+  // Move constructs an `absl::any` object with a "contained object" of the
>+  // passed type of `other` (or an empty `absl::any` if `other.has_value()` is
>+  // `false`).
>+  any(any&& other) noexcept = default;
>+
>+  // Constructs an `absl::any` object with a "contained object" of the decayed
>+  // type of `T`, which is initialized via `std::forward<T>(value)`.
>+  //
>+  // This constructor will not participate in overload resolution if the
>+  // decayed type of `T` is not copy-constructible.
>+  template <
>+      typename T, typename VT = absl::decay_t<T>,
>+      absl::enable_if_t<!absl::disjunction<
>+          std::is_same<any, VT>, IsInPlaceType<VT>,
>+          absl::negation<std::is_copy_constructible<VT> > >::value>* = nullptr>
>+  any(T&& value) : obj_(new Obj<VT>(in_place, std::forward<T>(value))) {}
>+
>+  // Constructs an `absl::any` object with a "contained object" of the decayed
>+  // type of `T`, which is initialized via `std::forward<T>(value)`.
>+  template <typename T, typename... Args, typename VT = absl::decay_t<T>,
>+            absl::enable_if_t<absl::conjunction<
>+                std::is_copy_constructible<VT>,
>+                std::is_constructible<VT, Args...>>::value>* = nullptr>
>+  explicit any(in_place_type_t<T> /*tag*/, Args&&... args)
>+      : obj_(new Obj<VT>(in_place, std::forward<Args>(args)...)) {}
>+
>+  // Constructs an `absl::any` object with a "contained object" of the passed
>+  // type `VT` as a decayed type of `T`. `VT` is initialized as if
>+  // direct-non-list-initializing an object of type `VT` with the arguments
>+  // `initializer_list, std::forward<Args>(args)...`.
>+  template <
>+      typename T, typename U, typename... Args, typename VT = absl::decay_t<T>,
>+      absl::enable_if_t<
>+          absl::conjunction<std::is_copy_constructible<VT>,
>+                            std::is_constructible<VT, std::initializer_list<U>&,
>+                                                  Args...>>::value>* = nullptr>
>+  explicit any(in_place_type_t<T> /*tag*/, std::initializer_list<U> ilist,
>+               Args&&... args)
>+      : obj_(new Obj<VT>(in_place, ilist, std::forward<Args>(args)...)) {}
>+
>+  // Assignment operators
>+
>+  // Copy assigns an `absl::any` object with a "contained object" of the
>+  // passed type.
>+  any& operator=(const any& rhs) {
>+    any(rhs).swap(*this);
>+    return *this;
>+  }
>+
>+  // Move assigns an `absl::any` object with a "contained object" of the
>+  // passed type. `rhs` is left in a valid but otherwise unspecified state.
>+  any& operator=(any&& rhs) noexcept {
>+    any(std::move(rhs)).swap(*this);
>+    return *this;
>+  }
>+
>+  // Assigns an `absl::any` object with a "contained object" of the passed type.
>+  template <typename T, typename VT = absl::decay_t<T>,
>+            absl::enable_if_t<absl::conjunction<
>+                absl::negation<std::is_same<VT, any>>,
>+                std::is_copy_constructible<VT>>::value>* = nullptr>
>+  any& operator=(T&& rhs) {
>+    any tmp(in_place_type_t<VT>(), std::forward<T>(rhs));
>+    tmp.swap(*this);
>+    return *this;
>+  }
>+
>+  // Modifiers
>+
>+  // any::emplace()
>+  //
>+  // Emplaces a value within an `absl::any` object by calling `any::reset()`,
>+  // initializing the contained value as if direct-non-list-initializing an
>+  // object of type `VT` with the arguments `std::forward<Args>(args)...`, and
>+  // returning a reference to the new contained value.
>+  //
>+  // Note: If an exception is thrown during the call to `VT`'s constructor,
>+  // `*this` does not contain a value, and any previously contained value has
>+  // been destroyed.
>+  template <
>+      typename T, typename... Args, typename VT = absl::decay_t<T>,
>+      absl::enable_if_t<std::is_copy_constructible<VT>::value &&
>+                        std::is_constructible<VT, Args...>::value>* = nullptr>
>+  VT& emplace(Args&&... args) {
>+    reset();  // NOTE: reset() is required here even in the world of exceptions.
>+    Obj<VT>* const object_ptr =
>+        new Obj<VT>(in_place, std::forward<Args>(args)...);
>+    obj_ = std::unique_ptr<ObjInterface>(object_ptr);
>+    return object_ptr->value;
>+  }
>+
>+  // Overload of `any::emplace()` to emplace a value within an `absl::any`
>+  // object by calling `any::reset()`, initializing the contained value as if
>+  // direct-non-list-initializing an object of type `VT` with the arguments
>+  // `initializer_list, std::forward<Args>(args)...`, and returning a reference
>+  // to the new contained value.
>+  //
>+  // Note: If an exception is thrown during the call to `VT`'s constructor,
>+  // `*this` does not contain a value, and any previously contained value has
>+  // been destroyed. The function shall not participate in overload resolution
>+  // unless `is_copy_constructible_v<VT>` is `true` and
>+  // `is_constructible_v<VT, initializer_list<U>&, Args...>` is `true`.
>+  template <
>+      typename T, typename U, typename... Args, typename VT = absl::decay_t<T>,
>+      absl::enable_if_t<std::is_copy_constructible<VT>::value &&
>+                        std::is_constructible<VT, std::initializer_list<U>&,
>+                                              Args...>::value>* = nullptr>
>+  VT& emplace(std::initializer_list<U> ilist, Args&&... args) {
>+    reset();  // NOTE: reset() is required here even in the world of exceptions.
>+    Obj<VT>* const object_ptr =
>+        new Obj<VT>(in_place, ilist, std::forward<Args>(args)...);
>+    obj_ = std::unique_ptr<ObjInterface>(object_ptr);
>+    return object_ptr->value;
>+  }
>+
>+  // any::reset()
>+  //
>+  // Resets the state of the `absl::any` object, destroying the contained object
>+  // if present.
>+  void reset() noexcept { obj_ = nullptr; }
>+
>+  // any::swap()
>+  //
>+  // Swaps the passed value and the value of this `absl::any` object.
>+  void swap(any& other) noexcept { obj_.swap(other.obj_); }
>+
>+  // Observers
>+
>+  // any::has_value()
>+  //
>+  // Returns `true` if the `any` object has a contained value, otherwise
>+  // returns `false`.
>+  bool has_value() const noexcept { return obj_ != nullptr; }
>+
>+#if ABSL_ANY_DETAIL_HAS_RTTI
>+  // Returns: typeid(T) if *this has a contained object of type T, otherwise
>+  // typeid(void).
>+  const std::type_info& type() const noexcept {
>+    if (has_value()) {
>+      return obj_->Type();
>+    }
>+
>+    return typeid(void);
>+  }
>+#endif  // ABSL_ANY_DETAIL_HAS_RTTI
>+
>+ private:
>+  // Tagged type-erased abstraction for holding a cloneable object.
>+  class ObjInterface {
>+   public:
>+    virtual ~ObjInterface() = default;
>+    virtual std::unique_ptr<ObjInterface> Clone() const = 0;
>+    virtual const void* ObjTypeId() const noexcept = 0;
>+#if ABSL_ANY_DETAIL_HAS_RTTI
>+    virtual const std::type_info& Type() const noexcept = 0;
>+#endif  // ABSL_ANY_DETAIL_HAS_RTTI
>+  };
>+
>+  // Hold a value of some queryable type, with an ability to Clone it.
>+  template <typename T>
>+  class Obj : public ObjInterface {
>+   public:
>+    template <typename... Args>
>+    explicit Obj(in_place_t /*tag*/, Args&&... args)
>+        : value(std::forward<Args>(args)...) {}
>+
>+    std::unique_ptr<ObjInterface> Clone() const final {
>+      return std::unique_ptr<ObjInterface>(new Obj(in_place, value));
>+    }
>+
>+    const void* ObjTypeId() const noexcept final { return IdForType<T>(); }
>+
>+#if ABSL_ANY_DETAIL_HAS_RTTI
>+    const std::type_info& Type() const noexcept final { return typeid(T); }
>+#endif  // ABSL_ANY_DETAIL_HAS_RTTI
>+
>+    T value;
>+  };
>+
>+  std::unique_ptr<ObjInterface> CloneObj() const {
>+    if (!obj_) return nullptr;
>+    return obj_->Clone();
>+  }
>+
>+  template <typename T>
>+  constexpr static const void* IdForType() {
>+    // Note: This type dance is to make the behavior consistent with typeid.
>+    using NormalizedType =
>+        typename std::remove_cv<typename std::remove_reference<T>::type>::type;
>+
>+    return any_internal::FastTypeId<NormalizedType>();
>+  }
>+
>+  const void* GetObjTypeId() const {
>+    return obj_ ? obj_->ObjTypeId() : any_internal::FastTypeId<void>();
>+  }
>+
>+  // `absl::any` nonmember functions //
>+
>+  // Description at the declaration site (top of file).
>+  template <typename ValueType>
>+  friend ValueType any_cast(const any& operand);
>+
>+  // Description at the declaration site (top of file).
>+  template <typename ValueType>
>+  friend ValueType any_cast(any& operand);  // NOLINT(runtime/references)
>+
>+  // Description at the declaration site (top of file).
>+  template <typename T>
>+  friend const T* any_cast(const any* operand) noexcept;
>+
>+  // Description at the declaration site (top of file).
>+  template <typename T>
>+  friend T* any_cast(any* operand) noexcept;
>+
>+  std::unique_ptr<ObjInterface> obj_;
>+};
>+
>+// -----------------------------------------------------------------------------
>+// Implementation Details
>+// -----------------------------------------------------------------------------
>+
>+constexpr any::any() noexcept = default;
>+
>+template <typename T>
>+struct any::IsInPlaceType : std::false_type {};
>+
>+template <typename T>
>+struct any::IsInPlaceType<in_place_type_t<T>> : std::true_type {};
>+
>+inline void swap(any& x, any& y) noexcept { x.swap(y); }
>+
>+// Description at the declaration site (top of file).
>+template <typename T, typename... Args>
>+any make_any(Args&&... args) {
>+  return any(in_place_type_t<T>(), std::forward<Args>(args)...);
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename T, typename U, typename... Args>
>+any make_any(std::initializer_list<U> il, Args&&... args) {
>+  return any(in_place_type_t<T>(), il, std::forward<Args>(args)...);
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename ValueType>
>+ValueType any_cast(const any& operand) {
>+  using U = typename std::remove_cv<
>+      typename std::remove_reference<ValueType>::type>::type;
>+  static_assert(std::is_constructible<ValueType, const U&>::value,
>+                "Invalid ValueType");
>+  auto* const result = (any_cast<U>)(&operand);
>+  if (result == nullptr) {
>+    any_internal::ThrowBadAnyCast();
>+  }
>+  return static_cast<ValueType>(*result);
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename ValueType>
>+ValueType any_cast(any& operand) {  // NOLINT(runtime/references)
>+  using U = typename std::remove_cv<
>+      typename std::remove_reference<ValueType>::type>::type;
>+  static_assert(std::is_constructible<ValueType, U&>::value,
>+                "Invalid ValueType");
>+  auto* result = (any_cast<U>)(&operand);
>+  if (result == nullptr) {
>+    any_internal::ThrowBadAnyCast();
>+  }
>+  return static_cast<ValueType>(*result);
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename ValueType>
>+ValueType any_cast(any&& operand) {
>+  using U = typename std::remove_cv<
>+      typename std::remove_reference<ValueType>::type>::type;
>+  static_assert(std::is_constructible<ValueType, U>::value,
>+                "Invalid ValueType");
>+  return static_cast<ValueType>(std::move((any_cast<U&>)(operand)));
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename T>
>+const T* any_cast(const any* operand) noexcept {
>+  return operand && operand->GetObjTypeId() == any::IdForType<T>()
>+             ? std::addressof(
>+                   static_cast<const any::Obj<T>*>(operand->obj_.get())->value)
>+             : nullptr;
>+}
>+
>+// Description at the declaration site (top of file).
>+template <typename T>
>+T* any_cast(any* operand) noexcept {
>+  return operand && operand->GetObjTypeId() == any::IdForType<T>()
>+             ? std::addressof(
>+                   static_cast<any::Obj<T>*>(operand->obj_.get())->value)
>+             : nullptr;
>+}
>+
>+}  // namespace absl
>+
>+#undef ABSL_ANY_DETAIL_HAS_RTTI
>+
>+#endif  // ABSL_HAVE_STD_ANY
>+
>+#endif  // ABSL_TYPES_ANY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_exception_safety_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_exception_safety_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..36955f6c5c376d32fb11a55895ba4ba06fe5a78e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_exception_safety_test.cc
>@@ -0,0 +1,167 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/any.h"
>+
>+#include <typeinfo>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+using Thrower = testing::ThrowingValue<>;
>+using NoThrowMoveThrower =
>+    testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
>+using ThrowerList = std::initializer_list<Thrower>;
>+using ThrowerVec = std::vector<Thrower>;
>+using ThrowingAlloc = testing::ThrowingAllocator<Thrower>;
>+using ThrowingThrowerVec = std::vector<Thrower, ThrowingAlloc>;
>+
>+namespace {
>+
>+testing::AssertionResult AnyInvariants(absl::any* a) {
>+  using testing::AssertionFailure;
>+  using testing::AssertionSuccess;
>+
>+  if (a->has_value()) {
>+    if (a->type() == typeid(void)) {
>+      return AssertionFailure()
>+             << "A non-empty any should not have type `void`";
>+    }
>+  } else {
>+    if (a->type() != typeid(void)) {
>+      return AssertionFailure()
>+             << "An empty any should have type void, but has type "
>+             << a->type().name();
>+    }
>+  }
>+
>+  //  Make sure that reset() changes any to a valid state.
>+  a->reset();
>+  if (a->has_value()) {
>+    return AssertionFailure() << "A reset `any` should be valueless";
>+  }
>+  if (a->type() != typeid(void)) {
>+    return AssertionFailure() << "A reset `any` should have type() of `void`, "
>+                                 "but instead has type "
>+                              << a->type().name();
>+  }
>+  try {
>+    auto unused = absl::any_cast<Thrower>(*a);
>+    static_cast<void>(unused);
>+    return AssertionFailure()
>+           << "A reset `any` should not be able to be any_cast";
>+  } catch (absl::bad_any_cast) {
>+  } catch (...) {
>+    return AssertionFailure()
>+           << "Unexpected exception thrown from absl::any_cast";
>+  }
>+  return AssertionSuccess();
>+}
>+
>+testing::AssertionResult AnyIsEmpty(absl::any* a) {
>+  if (!a->has_value()) {
>+    return testing::AssertionSuccess();
>+  }
>+  return testing::AssertionFailure()
>+         << "a should be empty, but instead has value "
>+         << absl::any_cast<Thrower>(*a).Get();
>+}
>+
>+TEST(AnyExceptionSafety, Ctors) {
>+  Thrower val(1);
>+  testing::TestThrowingCtor<absl::any>(val);
>+
>+  Thrower copy(val);
>+  testing::TestThrowingCtor<absl::any>(copy);
>+
>+  testing::TestThrowingCtor<absl::any>(absl::in_place_type_t<Thrower>(), 1);
>+
>+  testing::TestThrowingCtor<absl::any>(absl::in_place_type_t<ThrowerVec>(),
>+                                       ThrowerList{val});
>+
>+  testing::TestThrowingCtor<absl::any,
>+                            absl::in_place_type_t<ThrowingThrowerVec>,
>+                            ThrowerList, ThrowingAlloc>(
>+      absl::in_place_type_t<ThrowingThrowerVec>(), {val}, ThrowingAlloc());
>+}
>+
>+TEST(AnyExceptionSafety, Assignment) {
>+  auto original =
>+      absl::any(absl::in_place_type_t<Thrower>(), 1, testing::nothrow_ctor);
>+  auto any_is_strong = [original](absl::any* ap) {
>+    return testing::AssertionResult(ap->has_value() &&
>+                                    absl::any_cast<Thrower>(original) ==
>+                                        absl::any_cast<Thrower>(*ap));
>+  };
>+  auto any_strong_tester = testing::MakeExceptionSafetyTester()
>+                               .WithInitialValue(original)
>+                               .WithInvariants(AnyInvariants, any_is_strong);
>+
>+  Thrower val(2);
>+  absl::any any_val(val);
>+  NoThrowMoveThrower mv_val(2);
>+
>+  auto assign_any = [&any_val](absl::any* ap) { *ap = any_val; };
>+  auto assign_val = [&val](absl::any* ap) { *ap = val; };
>+  auto move = [&val](absl::any* ap) { *ap = std::move(val); };
>+  auto move_movable = [&mv_val](absl::any* ap) { *ap = std::move(mv_val); };
>+
>+  EXPECT_TRUE(any_strong_tester.Test(assign_any));
>+  EXPECT_TRUE(any_strong_tester.Test(assign_val));
>+  EXPECT_TRUE(any_strong_tester.Test(move));
>+  EXPECT_TRUE(any_strong_tester.Test(move_movable));
>+
>+  auto empty_any_is_strong = [](absl::any* ap) {
>+    return testing::AssertionResult{!ap->has_value()};
>+  };
>+  auto strong_empty_any_tester =
>+      testing::MakeExceptionSafetyTester()
>+          .WithInitialValue(absl::any{})
>+          .WithInvariants(AnyInvariants, empty_any_is_strong);
>+
>+  EXPECT_TRUE(strong_empty_any_tester.Test(assign_any));
>+  EXPECT_TRUE(strong_empty_any_tester.Test(assign_val));
>+  EXPECT_TRUE(strong_empty_any_tester.Test(move));
>+}
>+// libstdc++ std::any fails this test
>+#if !defined(ABSL_HAVE_STD_ANY)
>+TEST(AnyExceptionSafety, Emplace) {
>+  auto initial_val =
>+      absl::any{absl::in_place_type_t<Thrower>(), 1, testing::nothrow_ctor};
>+  auto one_tester = testing::MakeExceptionSafetyTester()
>+                        .WithInitialValue(initial_val)
>+                        .WithInvariants(AnyInvariants, AnyIsEmpty);
>+
>+  auto emp_thrower = [](absl::any* ap) { ap->emplace<Thrower>(2); };
>+  auto emp_throwervec = [](absl::any* ap) {
>+    std::initializer_list<Thrower> il{Thrower(2, testing::nothrow_ctor)};
>+    ap->emplace<ThrowerVec>(il);
>+  };
>+  auto emp_movethrower = [](absl::any* ap) {
>+    ap->emplace<NoThrowMoveThrower>(2);
>+  };
>+
>+  EXPECT_TRUE(one_tester.Test(emp_thrower));
>+  EXPECT_TRUE(one_tester.Test(emp_throwervec));
>+  EXPECT_TRUE(one_tester.Test(emp_movethrower));
>+
>+  auto empty_tester = one_tester.WithInitialValue(absl::any{});
>+
>+  EXPECT_TRUE(empty_tester.Test(emp_thrower));
>+  EXPECT_TRUE(empty_tester.Test(emp_throwervec));
>+}
>+#endif  // ABSL_HAVE_STD_ANY
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..115e78df7af1b1f689420502f5539616e1517b05
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/any_test.cc
>@@ -0,0 +1,724 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/any.h"
>+
>+#include <initializer_list>
>+#include <type_traits>
>+#include <utility>
>+#include <vector>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/exception_testing.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/container/internal/test_instance_tracker.h"
>+
>+namespace {
>+using absl::test_internal::CopyableOnlyInstance;
>+using absl::test_internal::InstanceTracker;
>+
>+template <typename T>
>+const T& AsConst(const T& t) {
>+  return t;
>+}
>+
>+struct MoveOnly {
>+  MoveOnly() = default;
>+  explicit MoveOnly(int value) : value(value) {}
>+  MoveOnly(MoveOnly&&) = default;
>+  MoveOnly& operator=(MoveOnly&&) = default;
>+
>+  int value = 0;
>+};
>+
>+struct CopyOnly {
>+  CopyOnly() = default;
>+  explicit CopyOnly(int value) : value(value) {}
>+  CopyOnly(CopyOnly&&) = delete;
>+  CopyOnly& operator=(CopyOnly&&) = delete;
>+  CopyOnly(const CopyOnly&) = default;
>+  CopyOnly& operator=(const CopyOnly&) = default;
>+
>+  int value = 0;
>+};
>+
>+struct MoveOnlyWithListConstructor {
>+  MoveOnlyWithListConstructor() = default;
>+  explicit MoveOnlyWithListConstructor(std::initializer_list<int> /*ilist*/,
>+                                       int value)
>+      : value(value) {}
>+  MoveOnlyWithListConstructor(MoveOnlyWithListConstructor&&) = default;
>+  MoveOnlyWithListConstructor& operator=(MoveOnlyWithListConstructor&&) =
>+      default;
>+
>+  int value = 0;
>+};
>+
>+struct IntMoveOnlyCopyOnly {
>+  IntMoveOnlyCopyOnly(int value, MoveOnly /*move_only*/, CopyOnly /*copy_only*/)
>+      : value(value) {}
>+
>+  int value;
>+};
>+
>+struct ListMoveOnlyCopyOnly {
>+  ListMoveOnlyCopyOnly(std::initializer_list<int> ilist, MoveOnly /*move_only*/,
>+                       CopyOnly /*copy_only*/)
>+      : values(ilist) {}
>+
>+  std::vector<int> values;
>+};
>+
>+using FunctionType = void();
>+void FunctionToEmplace() {}
>+
>+using ArrayType = int[2];
>+using DecayedArray = absl::decay_t<ArrayType>;
>+
>+TEST(AnyTest, Noexcept) {
>+  static_assert(std::is_nothrow_default_constructible<absl::any>(), "");
>+  static_assert(std::is_nothrow_move_constructible<absl::any>(), "");
>+  static_assert(std::is_nothrow_move_assignable<absl::any>(), "");
>+  static_assert(noexcept(std::declval<absl::any&>().has_value()), "");
>+  static_assert(noexcept(std::declval<absl::any&>().type()), "");
>+  static_assert(noexcept(absl::any_cast<int>(std::declval<absl::any*>())), "");
>+  static_assert(
>+      noexcept(std::declval<absl::any&>().swap(std::declval<absl::any&>())),
>+      "");
>+
>+  using std::swap;
>+  static_assert(
>+      noexcept(swap(std::declval<absl::any&>(), std::declval<absl::any&>())),
>+      "");
>+}
>+
>+TEST(AnyTest, HasValue) {
>+  absl::any o;
>+  EXPECT_FALSE(o.has_value());
>+  o.emplace<int>();
>+  EXPECT_TRUE(o.has_value());
>+  o.reset();
>+  EXPECT_FALSE(o.has_value());
>+}
>+
>+TEST(AnyTest, Type) {
>+  absl::any o;
>+  EXPECT_EQ(typeid(void), o.type());
>+  o.emplace<int>(5);
>+  EXPECT_EQ(typeid(int), o.type());
>+  o.emplace<float>(5.f);
>+  EXPECT_EQ(typeid(float), o.type());
>+  o.reset();
>+  EXPECT_EQ(typeid(void), o.type());
>+}
>+
>+TEST(AnyTest, EmptyPointerCast) {
>+  // pointer-to-unqualified overload
>+  {
>+    absl::any o;
>+    EXPECT_EQ(nullptr, absl::any_cast<int>(&o));
>+    o.emplace<int>();
>+    EXPECT_NE(nullptr, absl::any_cast<int>(&o));
>+    o.reset();
>+    EXPECT_EQ(nullptr, absl::any_cast<int>(&o));
>+  }
>+
>+  // pointer-to-const overload
>+  {
>+    absl::any o;
>+    EXPECT_EQ(nullptr, absl::any_cast<int>(&AsConst(o)));
>+    o.emplace<int>();
>+    EXPECT_NE(nullptr, absl::any_cast<int>(&AsConst(o)));
>+    o.reset();
>+    EXPECT_EQ(nullptr, absl::any_cast<int>(&AsConst(o)));
>+  }
>+}
>+
>+TEST(AnyTest, InPlaceConstruction) {
>+  const CopyOnly copy_only{};
>+  absl::any o(absl::in_place_type_t<IntMoveOnlyCopyOnly>(), 5, MoveOnly(),
>+              copy_only);
>+  IntMoveOnlyCopyOnly& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(5, v.value);
>+}
>+
>+TEST(AnyTest, InPlaceConstructionWithCV) {
>+  const CopyOnly copy_only{};
>+  absl::any o(absl::in_place_type_t<const volatile IntMoveOnlyCopyOnly>(), 5,
>+              MoveOnly(), copy_only);
>+  IntMoveOnlyCopyOnly& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(5, v.value);
>+}
>+
>+TEST(AnyTest, InPlaceConstructionWithFunction) {
>+  absl::any o(absl::in_place_type_t<FunctionType>(), FunctionToEmplace);
>+  FunctionType*& construction_result = absl::any_cast<FunctionType*&>(o);
>+  EXPECT_EQ(&FunctionToEmplace, construction_result);
>+}
>+
>+TEST(AnyTest, InPlaceConstructionWithArray) {
>+  ArrayType ar = {5, 42};
>+  absl::any o(absl::in_place_type_t<ArrayType>(), ar);
>+  DecayedArray& construction_result = absl::any_cast<DecayedArray&>(o);
>+  EXPECT_EQ(&ar[0], construction_result);
>+}
>+
>+TEST(AnyTest, InPlaceConstructionIlist) {
>+  const CopyOnly copy_only{};
>+  absl::any o(absl::in_place_type_t<ListMoveOnlyCopyOnly>(), {1, 2, 3, 4},
>+              MoveOnly(), copy_only);
>+  ListMoveOnlyCopyOnly& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o);
>+  std::vector<int> expected_values = {1, 2, 3, 4};
>+  EXPECT_EQ(expected_values, v.values);
>+}
>+
>+TEST(AnyTest, InPlaceConstructionIlistWithCV) {
>+  const CopyOnly copy_only{};
>+  absl::any o(absl::in_place_type_t<const volatile ListMoveOnlyCopyOnly>(),
>+              {1, 2, 3, 4}, MoveOnly(), copy_only);
>+  ListMoveOnlyCopyOnly& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o);
>+  std::vector<int> expected_values = {1, 2, 3, 4};
>+  EXPECT_EQ(expected_values, v.values);
>+}
>+
>+TEST(AnyTest, InPlaceNoArgs) {
>+  absl::any o(absl::in_place_type_t<int>{});
>+  EXPECT_EQ(0, absl::any_cast<int&>(o));
>+}
>+
>+template <typename Enabler, typename T, typename... Args>
>+struct CanEmplaceAnyImpl : std::false_type {};
>+
>+template <typename T, typename... Args>
>+struct CanEmplaceAnyImpl<
>+    absl::void_t<decltype(
>+        std::declval<absl::any&>().emplace<T>(std::declval<Args>()...))>,
>+    T, Args...> : std::true_type {};
>+
>+template <typename T, typename... Args>
>+using CanEmplaceAny = CanEmplaceAnyImpl<void, T, Args...>;
>+
>+TEST(AnyTest, Emplace) {
>+  const CopyOnly copy_only{};
>+  absl::any o;
>+  EXPECT_TRUE((std::is_same<decltype(o.emplace<IntMoveOnlyCopyOnly>(
>+                                5, MoveOnly(), copy_only)),
>+                            IntMoveOnlyCopyOnly&>::value));
>+  IntMoveOnlyCopyOnly& emplace_result =
>+      o.emplace<IntMoveOnlyCopyOnly>(5, MoveOnly(), copy_only);
>+  EXPECT_EQ(5, emplace_result.value);
>+  IntMoveOnlyCopyOnly& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(5, v.value);
>+  EXPECT_EQ(&emplace_result, &v);
>+
>+  static_assert(!CanEmplaceAny<int, int, int>::value, "");
>+  static_assert(!CanEmplaceAny<MoveOnly, MoveOnly>::value, "");
>+}
>+
>+TEST(AnyTest, EmplaceWithCV) {
>+  const CopyOnly copy_only{};
>+  absl::any o;
>+  EXPECT_TRUE(
>+      (std::is_same<decltype(o.emplace<const volatile IntMoveOnlyCopyOnly>(
>+                        5, MoveOnly(), copy_only)),
>+                    IntMoveOnlyCopyOnly&>::value));
>+  IntMoveOnlyCopyOnly& emplace_result =
>+      o.emplace<const volatile IntMoveOnlyCopyOnly>(5, MoveOnly(), copy_only);
>+  EXPECT_EQ(5, emplace_result.value);
>+  IntMoveOnlyCopyOnly& v = absl::any_cast<IntMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(5, v.value);
>+  EXPECT_EQ(&emplace_result, &v);
>+}
>+
>+TEST(AnyTest, EmplaceWithFunction) {
>+  absl::any o;
>+  EXPECT_TRUE(
>+      (std::is_same<decltype(o.emplace<FunctionType>(FunctionToEmplace)),
>+                    FunctionType*&>::value));
>+  FunctionType*& emplace_result = o.emplace<FunctionType>(FunctionToEmplace);
>+  EXPECT_EQ(&FunctionToEmplace, emplace_result);
>+}
>+
>+TEST(AnyTest, EmplaceWithArray) {
>+  absl::any o;
>+  ArrayType ar = {5, 42};
>+  EXPECT_TRUE(
>+      (std::is_same<decltype(o.emplace<ArrayType>(ar)), DecayedArray&>::value));
>+  DecayedArray& emplace_result = o.emplace<ArrayType>(ar);
>+  EXPECT_EQ(&ar[0], emplace_result);
>+}
>+
>+TEST(AnyTest, EmplaceIlist) {
>+  const CopyOnly copy_only{};
>+  absl::any o;
>+  EXPECT_TRUE((std::is_same<decltype(o.emplace<ListMoveOnlyCopyOnly>(
>+                                {1, 2, 3, 4}, MoveOnly(), copy_only)),
>+                            ListMoveOnlyCopyOnly&>::value));
>+  ListMoveOnlyCopyOnly& emplace_result =
>+      o.emplace<ListMoveOnlyCopyOnly>({1, 2, 3, 4}, MoveOnly(), copy_only);
>+  ListMoveOnlyCopyOnly& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(&v, &emplace_result);
>+  std::vector<int> expected_values = {1, 2, 3, 4};
>+  EXPECT_EQ(expected_values, v.values);
>+
>+  static_assert(!CanEmplaceAny<int, std::initializer_list<int>>::value, "");
>+  static_assert(!CanEmplaceAny<MoveOnlyWithListConstructor,
>+                               std::initializer_list<int>, int>::value,
>+                "");
>+}
>+
>+TEST(AnyTest, EmplaceIlistWithCV) {
>+  const CopyOnly copy_only{};
>+  absl::any o;
>+  EXPECT_TRUE(
>+      (std::is_same<decltype(o.emplace<const volatile ListMoveOnlyCopyOnly>(
>+                        {1, 2, 3, 4}, MoveOnly(), copy_only)),
>+                    ListMoveOnlyCopyOnly&>::value));
>+  ListMoveOnlyCopyOnly& emplace_result =
>+      o.emplace<const volatile ListMoveOnlyCopyOnly>({1, 2, 3, 4}, MoveOnly(),
>+                                                     copy_only);
>+  ListMoveOnlyCopyOnly& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o);
>+  EXPECT_EQ(&v, &emplace_result);
>+  std::vector<int> expected_values = {1, 2, 3, 4};
>+  EXPECT_EQ(expected_values, v.values);
>+}
>+
>+TEST(AnyTest, EmplaceNoArgs) {
>+  absl::any o;
>+  o.emplace<int>();
>+  EXPECT_EQ(0, absl::any_cast<int>(o));
>+}
>+
>+TEST(AnyTest, ConversionConstruction) {
>+  {
>+    absl::any o = 5;
>+    EXPECT_EQ(5, absl::any_cast<int>(o));
>+  }
>+
>+  {
>+    const CopyOnly copy_only(5);
>+    absl::any o = copy_only;
>+    EXPECT_EQ(5, absl::any_cast<CopyOnly&>(o).value);
>+  }
>+
>+  static_assert(!std::is_convertible<MoveOnly, absl::any>::value, "");
>+}
>+
>+TEST(AnyTest, ConversionAssignment) {
>+  {
>+    absl::any o;
>+    o = 5;
>+    EXPECT_EQ(5, absl::any_cast<int>(o));
>+  }
>+
>+  {
>+    const CopyOnly copy_only(5);
>+    absl::any o;
>+    o = copy_only;
>+    EXPECT_EQ(5, absl::any_cast<CopyOnly&>(o).value);
>+  }
>+
>+  static_assert(!std::is_assignable<MoveOnly, absl::any>::value, "");
>+}
>+
>+// Suppress MSVC warnings.
>+// 4521: multiple copy constructors specified
>+// We wrote multiple of them to test that the correct overloads are selected.
>+#ifdef _MSC_VER
>+#pragma warning( push )
>+#pragma warning( disable : 4521)
>+#endif
>+
>+// Weird type for testing, only used to make sure we "properly" perfect-forward
>+// when being placed into an absl::any (use the l-value constructor if given an
>+// l-value rather than use the copy constructor).
>+struct WeirdConstructor42 {
>+  explicit WeirdConstructor42(int value) : value(value) {}
>+
>+  // Copy-constructor
>+  WeirdConstructor42(const WeirdConstructor42& other) : value(other.value) {}
>+
>+  // L-value "weird" constructor (used when given an l-value)
>+  WeirdConstructor42(
>+      WeirdConstructor42& /*other*/)  // NOLINT(runtime/references)
>+      : value(42) {}
>+
>+  int value;
>+};
>+#ifdef _MSC_VER
>+#pragma warning( pop )
>+#endif
>+
>+TEST(AnyTest, WeirdConversionConstruction) {
>+  {
>+    const WeirdConstructor42 source(5);
>+    absl::any o = source;  // Actual copy
>+    EXPECT_EQ(5, absl::any_cast<WeirdConstructor42&>(o).value);
>+  }
>+
>+  {
>+    WeirdConstructor42 source(5);
>+    absl::any o = source;  // Weird "conversion"
>+    EXPECT_EQ(42, absl::any_cast<WeirdConstructor42&>(o).value);
>+  }
>+}
>+
>+TEST(AnyTest, WeirdConversionAssignment) {
>+  {
>+    const WeirdConstructor42 source(5);
>+    absl::any o;
>+    o = source;  // Actual copy
>+    EXPECT_EQ(5, absl::any_cast<WeirdConstructor42&>(o).value);
>+  }
>+
>+  {
>+    WeirdConstructor42 source(5);
>+    absl::any o;
>+    o = source;  // Weird "conversion"
>+    EXPECT_EQ(42, absl::any_cast<WeirdConstructor42&>(o).value);
>+  }
>+}
>+
>+struct Value {};
>+
>+TEST(AnyTest, AnyCastValue) {
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<int>(o));
>+    EXPECT_EQ(5, absl::any_cast<int>(AsConst(o)));
>+    static_assert(
>+        std::is_same<decltype(absl::any_cast<Value>(o)), Value>::value, "");
>+  }
>+
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<const int>(o));
>+    EXPECT_EQ(5, absl::any_cast<const int>(AsConst(o)));
>+    static_assert(std::is_same<decltype(absl::any_cast<const Value>(o)),
>+                               const Value>::value,
>+                  "");
>+  }
>+}
>+
>+TEST(AnyTest, AnyCastReference) {
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<int&>(o));
>+    EXPECT_EQ(5, absl::any_cast<const int&>(AsConst(o)));
>+    static_assert(
>+        std::is_same<decltype(absl::any_cast<Value&>(o)), Value&>::value, "");
>+  }
>+
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<const int>(o));
>+    EXPECT_EQ(5, absl::any_cast<const int>(AsConst(o)));
>+    static_assert(std::is_same<decltype(absl::any_cast<const Value&>(o)),
>+                               const Value&>::value,
>+                  "");
>+  }
>+
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<int&&>(std::move(o)));
>+    static_assert(std::is_same<decltype(absl::any_cast<Value&&>(std::move(o))),
>+                               Value&&>::value,
>+                  "");
>+  }
>+
>+  {
>+    absl::any o;
>+    o.emplace<int>(5);
>+    EXPECT_EQ(5, absl::any_cast<const int>(std::move(o)));
>+    static_assert(
>+        std::is_same<decltype(absl::any_cast<const Value&&>(std::move(o))),
>+                     const Value&&>::value,
>+        "");
>+  }
>+}
>+
>+TEST(AnyTest, AnyCastPointer) {
>+  {
>+    absl::any o;
>+    EXPECT_EQ(nullptr, absl::any_cast<char>(&o));
>+    o.emplace<int>(5);
>+    EXPECT_EQ(nullptr, absl::any_cast<char>(&o));
>+    o.emplace<char>('a');
>+    EXPECT_EQ('a', *absl::any_cast<char>(&o));
>+    static_assert(
>+        std::is_same<decltype(absl::any_cast<Value>(&o)), Value*>::value, "");
>+  }
>+
>+  {
>+    absl::any o;
>+    EXPECT_EQ(nullptr, absl::any_cast<const char>(&o));
>+    o.emplace<int>(5);
>+    EXPECT_EQ(nullptr, absl::any_cast<const char>(&o));
>+    o.emplace<char>('a');
>+    EXPECT_EQ('a', *absl::any_cast<const char>(&o));
>+    static_assert(std::is_same<decltype(absl::any_cast<const Value>(&o)),
>+                               const Value*>::value,
>+                  "");
>+  }
>+}
>+
>+TEST(AnyTest, MakeAny) {
>+  const CopyOnly copy_only{};
>+  auto o = absl::make_any<IntMoveOnlyCopyOnly>(5, MoveOnly(), copy_only);
>+  static_assert(std::is_same<decltype(o), absl::any>::value, "");
>+  EXPECT_EQ(5, absl::any_cast<IntMoveOnlyCopyOnly&>(o).value);
>+}
>+
>+TEST(AnyTest, MakeAnyIList) {
>+  const CopyOnly copy_only{};
>+  auto o =
>+      absl::make_any<ListMoveOnlyCopyOnly>({1, 2, 3}, MoveOnly(), copy_only);
>+  static_assert(std::is_same<decltype(o), absl::any>::value, "");
>+  ListMoveOnlyCopyOnly& v = absl::any_cast<ListMoveOnlyCopyOnly&>(o);
>+  std::vector<int> expected_values = {1, 2, 3};
>+  EXPECT_EQ(expected_values, v.values);
>+}
>+
>+// Test the use of copy constructor and operator=
>+TEST(AnyTest, Copy) {
>+  InstanceTracker tracker_raii;
>+
>+  {
>+    absl::any o(absl::in_place_type_t<CopyableOnlyInstance>{}, 123);
>+    CopyableOnlyInstance* f1 = absl::any_cast<CopyableOnlyInstance>(&o);
>+
>+    absl::any o2(o);
>+    const CopyableOnlyInstance* f2 = absl::any_cast<CopyableOnlyInstance>(&o2);
>+    EXPECT_EQ(123, f2->value());
>+    EXPECT_NE(f1, f2);
>+
>+    absl::any o3;
>+    o3 = o2;
>+    const CopyableOnlyInstance* f3 = absl::any_cast<CopyableOnlyInstance>(&o3);
>+    EXPECT_EQ(123, f3->value());
>+    EXPECT_NE(f2, f3);
>+
>+    const absl::any o4(4);
>+    // copy construct from const lvalue ref.
>+    absl::any o5 = o4;
>+    EXPECT_EQ(4, absl::any_cast<int>(o4));
>+    EXPECT_EQ(4, absl::any_cast<int>(o5));
>+
>+    // Copy construct from const rvalue ref.
>+    absl::any o6 = std::move(o4);  // NOLINT
>+    EXPECT_EQ(4, absl::any_cast<int>(o4));
>+    EXPECT_EQ(4, absl::any_cast<int>(o6));
>+  }
>+}
>+
>+TEST(AnyTest, Move) {
>+  InstanceTracker tracker_raii;
>+
>+  absl::any any1;
>+  any1.emplace<CopyableOnlyInstance>(5);
>+
>+  // This is a copy, so copy count increases to 1.
>+  absl::any any2 = any1;
>+  EXPECT_EQ(5, absl::any_cast<CopyableOnlyInstance&>(any1).value());
>+  EXPECT_EQ(5, absl::any_cast<CopyableOnlyInstance&>(any2).value());
>+  EXPECT_EQ(1, tracker_raii.copies());
>+
>+  // This isn't a copy, so copy count doesn't increase.
>+  absl::any any3 = std::move(any2);
>+  EXPECT_EQ(5, absl::any_cast<CopyableOnlyInstance&>(any3).value());
>+  EXPECT_EQ(1, tracker_raii.copies());
>+
>+  absl::any any4;
>+  any4 = std::move(any3);
>+  EXPECT_EQ(5, absl::any_cast<CopyableOnlyInstance&>(any4).value());
>+  EXPECT_EQ(1, tracker_raii.copies());
>+
>+  absl::any tmp4(4);
>+  absl::any o4(std::move(tmp4));  // move construct
>+  EXPECT_EQ(4, absl::any_cast<int>(o4));
>+  o4 = *&o4;  // self assign
>+  EXPECT_EQ(4, absl::any_cast<int>(o4));
>+  EXPECT_TRUE(o4.has_value());
>+
>+  absl::any o5;
>+  absl::any tmp5(5);
>+  o5 = std::move(tmp5);  // move assign
>+  EXPECT_EQ(5, absl::any_cast<int>(o5));
>+}
>+
>+// Reset the ObjectOwner with an object of a different type
>+TEST(AnyTest, Reset) {
>+  absl::any o;
>+  o.emplace<int>();
>+
>+  o.reset();
>+  EXPECT_FALSE(o.has_value());
>+
>+  o.emplace<char>();
>+  EXPECT_TRUE(o.has_value());
>+}
>+
>+TEST(AnyTest, ConversionConstructionCausesOneCopy) {
>+  InstanceTracker tracker_raii;
>+  CopyableOnlyInstance counter(5);
>+  absl::any o(counter);
>+  EXPECT_EQ(5, absl::any_cast<CopyableOnlyInstance&>(o).value());
>+  EXPECT_EQ(1, tracker_raii.copies());
>+}
>+
>+//////////////////////////////////
>+// Tests for Exception Behavior //
>+//////////////////////////////////
>+
>+#if defined(ABSL_HAVE_STD_ANY)
>+
>+// If using a std `any` implementation, we can't check for a specific message.
>+#define ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(...)                      \
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL((__VA_ARGS__), absl::bad_any_cast, \
>+                                 "")
>+
>+#else
>+
>+// If using the absl `any` implementation, we can rely on a specific message.
>+#define ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(...)                      \
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL((__VA_ARGS__), absl::bad_any_cast, \
>+                                 "Bad any cast")
>+
>+#endif  // defined(ABSL_HAVE_STD_ANY)
>+
>+TEST(AnyTest, ThrowBadAlloc) {
>+  {
>+    absl::any a;
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<int&>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int&>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<int&&>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int&&>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<int>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<int>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int>(absl::any{}));
>+
>+    // const absl::any operand
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int&>(AsConst(a)));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<int>(AsConst(a)));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const int>(AsConst(a)));
>+  }
>+
>+  {
>+    absl::any a(absl::in_place_type_t<int>{});
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float&>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float&>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float&&>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(
>+        absl::any_cast<const float&&>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float>(a));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float>(absl::any{}));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float>(absl::any{}));
>+
>+    // const absl::any operand
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float&>(AsConst(a)));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<float>(AsConst(a)));
>+    ABSL_ANY_TEST_EXPECT_BAD_ANY_CAST(absl::any_cast<const float>(AsConst(a)));
>+  }
>+}
>+
>+class BadCopy {};
>+
>+struct BadCopyable {
>+  BadCopyable() = default;
>+  BadCopyable(BadCopyable&&) = default;
>+  BadCopyable(const BadCopyable&) {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+    throw BadCopy();
>+#else
>+    ABSL_RAW_LOG(FATAL, "Bad copy");
>+#endif
>+  }
>+};
>+
>+#define ABSL_ANY_TEST_EXPECT_BAD_COPY(...) \
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL((__VA_ARGS__), BadCopy, "Bad copy")
>+
>+// Test the guarantees regarding exceptions in copy/assign.
>+TEST(AnyTest, FailedCopy) {
>+  {
>+    const BadCopyable bad{};
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(absl::any{bad});
>+  }
>+
>+  {
>+    absl::any src(absl::in_place_type_t<BadCopyable>{});
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(absl::any{src});
>+  }
>+
>+  {
>+    BadCopyable bad;
>+    absl::any target;
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target = bad);
>+  }
>+
>+  {
>+    BadCopyable bad;
>+    absl::any target(absl::in_place_type_t<BadCopyable>{});
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target = bad);
>+    EXPECT_TRUE(target.has_value());
>+  }
>+
>+  {
>+    absl::any src(absl::in_place_type_t<BadCopyable>{});
>+    absl::any target;
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target = src);
>+    EXPECT_FALSE(target.has_value());
>+  }
>+
>+  {
>+    absl::any src(absl::in_place_type_t<BadCopyable>{});
>+    absl::any target(absl::in_place_type_t<BadCopyable>{});
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target = src);
>+    EXPECT_TRUE(target.has_value());
>+  }
>+}
>+
>+// Test the guarantees regarding exceptions in emplace.
>+TEST(AnyTest, FailedEmplace) {
>+  {
>+    BadCopyable bad;
>+    absl::any target;
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target.emplace<BadCopyable>(bad));
>+  }
>+
>+  {
>+    BadCopyable bad;
>+    absl::any target(absl::in_place_type_t<int>{});
>+    ABSL_ANY_TEST_EXPECT_BAD_COPY(target.emplace<BadCopyable>(bad));
>+#if defined(ABSL_HAVE_STD_ANY) && defined(__GLIBCXX__)
>+    // libstdc++ std::any::emplace() implementation (as of 7.2) has a bug: if an
>+    // exception is thrown, *this contains a value.
>+#define ABSL_GLIBCXX_ANY_EMPLACE_EXCEPTION_BUG 1
>+#endif
>+#if defined(ABSL_HAVE_EXCEPTIONS) && \
>+    !defined(ABSL_GLIBCXX_ANY_EMPLACE_EXCEPTION_BUG)
>+    EXPECT_FALSE(target.has_value());
>+#endif
>+  }
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..2e2fd29a337807066556a2ffc40b3e08dfa67beb
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.cc
>@@ -0,0 +1,44 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/bad_any_cast.h"
>+
>+#ifndef ABSL_HAVE_STD_ANY
>+
>+#include <cstdlib>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+bad_any_cast::~bad_any_cast() = default;
>+
>+const char* bad_any_cast::what() const noexcept { return "Bad any cast"; }
>+
>+namespace any_internal {
>+
>+void ThrowBadAnyCast() {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  throw bad_any_cast();
>+#else
>+  ABSL_RAW_LOG(FATAL, "Bad any cast");
>+  std::abort();
>+#endif
>+}
>+
>+}  // namespace any_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_ANY
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..603901324afc30f2bc592eac5ec16f24b1957ad4
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_any_cast.h
>@@ -0,0 +1,71 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// bad_any_cast.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines the `absl::bad_any_cast` type.
>+
>+#ifndef ABSL_TYPES_BAD_ANY_CAST_H_
>+#define ABSL_TYPES_BAD_ANY_CAST_H_
>+
>+#include <typeinfo>
>+
>+#include "absl/base/config.h"
>+
>+#ifdef ABSL_HAVE_STD_ANY
>+
>+#include <any>
>+
>+namespace absl {
>+using std::bad_any_cast;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_ANY
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// bad_any_cast
>+// -----------------------------------------------------------------------------
>+//
>+// An `absl::bad_any_cast` type is an exception type that is thrown when
>+// failing to successfully cast the return value of an `absl::any` object.
>+//
>+// Example:
>+//
>+//   auto a = absl::any(65);
>+//   absl::any_cast<int>(a);         // 65
>+//   try {
>+//     absl::any_cast<char>(a);
>+//   } catch(const absl::bad_any_cast& e) {
>+//     std::cout << "Bad any cast: " << e.what() << '\n';
>+//   }
>+class bad_any_cast : public std::bad_cast {
>+ public:
>+  ~bad_any_cast() override;
>+  const char* what() const noexcept override;
>+};
>+
>+namespace any_internal {
>+
>+[[noreturn]] void ThrowBadAnyCast();
>+
>+}  // namespace any_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_ANY
>+
>+#endif  // ABSL_TYPES_BAD_ANY_CAST_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..558707760e9de453f7ccedc998a0ca8f5bbe6446
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.cc
>@@ -0,0 +1,46 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/bad_optional_access.h"
>+
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+
>+#include <cstdlib>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+bad_optional_access::~bad_optional_access() = default;
>+
>+const char* bad_optional_access::what() const noexcept {
>+  return "optional has no value";
>+}
>+
>+namespace optional_internal {
>+
>+void throw_bad_optional_access() {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  throw bad_optional_access();
>+#else
>+  ABSL_RAW_LOG(FATAL, "Bad optional access");
>+  abort();
>+#endif
>+}
>+
>+}  // namespace optional_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c6c27460a76d309a0739bbf445f2d34be42e1da0
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_optional_access.h
>@@ -0,0 +1,74 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// bad_optional_access.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines the `absl::bad_optional_access` type.
>+
>+#ifndef ABSL_TYPES_BAD_OPTIONAL_ACCESS_H_
>+#define ABSL_TYPES_BAD_OPTIONAL_ACCESS_H_
>+
>+#include <stdexcept>
>+
>+#include "absl/base/config.h"
>+
>+#ifdef ABSL_HAVE_STD_OPTIONAL
>+
>+#include <optional>
>+
>+namespace absl {
>+using std::bad_optional_access;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_OPTIONAL
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// bad_optional_access
>+// -----------------------------------------------------------------------------
>+//
>+// An `absl::bad_optional_access` type is an exception type that is thrown when
>+// attempting to access an `absl::optional` object that does not contain a
>+// value.
>+//
>+// Example:
>+//
>+//   absl::optional<int> o;
>+//
>+//   try {
>+//     int n = o.value();
>+//   } catch(const absl::bad_optional_access& e) {
>+//     std::cout << "Bad optional access: " << e.what() << '\n';
>+//   }
>+class bad_optional_access : public std::exception {
>+ public:
>+  bad_optional_access() = default;
>+  ~bad_optional_access() override;
>+  const char* what() const noexcept override;
>+};
>+
>+namespace optional_internal {
>+
>+// throw delegator
>+[[noreturn]] void throw_bad_optional_access();
>+
>+}  // namespace optional_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>+
>+#endif  // ABSL_TYPES_BAD_OPTIONAL_ACCESS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d27d775617917fbc0683b8efc40daac1ee0dc553
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.cc
>@@ -0,0 +1,62 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/bad_variant_access.h"
>+
>+#ifndef ABSL_HAVE_STD_VARIANT
>+
>+#include <cstdlib>
>+#include <stdexcept>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/internal/raw_logging.h"
>+
>+namespace absl {
>+
>+//////////////////////////
>+// [variant.bad.access] //
>+//////////////////////////
>+
>+bad_variant_access::~bad_variant_access() = default;
>+
>+const char* bad_variant_access::what() const noexcept {
>+  return "Bad variant access";
>+}
>+
>+namespace variant_internal {
>+
>+void ThrowBadVariantAccess() {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  throw bad_variant_access();
>+#else
>+  ABSL_RAW_LOG(FATAL, "Bad variant access");
>+  abort();  // TODO(calabrese) Remove once RAW_LOG FATAL is noreturn.
>+#endif
>+}
>+
>+void Rethrow() {
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  throw;
>+#else
>+  ABSL_RAW_LOG(FATAL,
>+               "Internal error in absl::variant implementation. Attempted to "
>+               "rethrow an exception when building with exceptions disabled.");
>+  abort();  // TODO(calabrese) Remove once RAW_LOG FATAL is noreturn.
>+#endif
>+}
>+
>+}  // namespace variant_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_VARIANT
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..e7355a5a74c8b624e91652b423896af484365d4e
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/bad_variant_access.h
>@@ -0,0 +1,78 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// bad_variant_access.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines the `absl::bad_variant_access` type.
>+
>+#ifndef ABSL_TYPES_BAD_VARIANT_ACCESS_H_
>+#define ABSL_TYPES_BAD_VARIANT_ACCESS_H_
>+
>+#include <stdexcept>
>+
>+#include "absl/base/config.h"
>+
>+#ifdef ABSL_HAVE_STD_VARIANT
>+
>+#include <variant>
>+
>+namespace absl {
>+using std::bad_variant_access;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_VARIANT
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// bad_variant_access
>+// -----------------------------------------------------------------------------
>+//
>+// An `absl::bad_variant_access` type is an exception type that is thrown in
>+// the following cases:
>+//
>+//   * Calling `absl::get(absl::variant) with an index or type that does not
>+//     match the currently selected alternative type
>+//   * Calling `absl::visit on an `absl::variant` that is in the
>+//     `variant::valueless_by_exception` state.
>+//
>+// Example:
>+//
>+//   absl::variant<int, std::string> v;
>+//   v = 1;
>+//   try {
>+//     absl::get<std::string>(v);
>+//   } catch(const absl::bad_variant_access& e) {
>+//     std::cout << "Bad variant access: " << e.what() << '\n';
>+//   }
>+class bad_variant_access : public std::exception {
>+ public:
>+  bad_variant_access() noexcept = default;
>+  ~bad_variant_access() override;
>+  const char* what() const noexcept override;
>+};
>+
>+namespace variant_internal {
>+
>+[[noreturn]] void ThrowBadVariantAccess();
>+[[noreturn]] void Rethrow();
>+
>+}  // namespace variant_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_HAVE_STD_VARIANT
>+
>+#endif  // ABSL_TYPES_BAD_VARIANT_ACCESS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/internal/variant.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/internal/variant.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..7708e67cb14f416ade16719e2369aaf648bb6283
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/internal/variant.h
>@@ -0,0 +1,1615 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// Implementation details of absl/types/variant.h, pulled into a
>+// separate file to avoid cluttering the top of the API header with
>+// implementation details.
>+
>+#ifndef ABSL_TYPES_variant_internal_H_
>+#define ABSL_TYPES_variant_internal_H_
>+
>+#include <cassert>
>+#include <cstddef>
>+#include <cstdlib>
>+#include <memory>
>+#include <stdexcept>
>+#include <tuple>
>+#include <type_traits>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/internal/identity.h"
>+#include "absl/base/internal/inline_variable.h"
>+#include "absl/base/internal/invoke.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/optimization.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/types/bad_variant_access.h"
>+#include "absl/utility/utility.h"
>+
>+namespace absl {
>+
>+template <class... Types>
>+class variant;
>+
>+ABSL_INTERNAL_INLINE_CONSTEXPR(size_t, variant_npos, -1);
>+
>+template <class T>
>+struct variant_size;
>+
>+template <std::size_t I, class T>
>+struct variant_alternative;
>+
>+namespace variant_internal {
>+
>+// NOTE: See specializations below for details.
>+template <std::size_t I, class T>
>+struct VariantAlternativeSfinae {};
>+
>+// Requires: I < variant_size_v<T>.
>+//
>+// Value: The Ith type of Types...
>+template <std::size_t I, class T0, class... Tn>
>+struct VariantAlternativeSfinae<I, variant<T0, Tn...>>
>+    : VariantAlternativeSfinae<I - 1, variant<Tn...>> {};
>+
>+// Value: T0
>+template <class T0, class... Ts>
>+struct VariantAlternativeSfinae<0, variant<T0, Ts...>> {
>+  using type = T0;
>+};
>+
>+template <std::size_t I, class T>
>+using VariantAlternativeSfinaeT = typename VariantAlternativeSfinae<I, T>::type;
>+
>+// NOTE: Requires T to be a reference type.
>+template <class T, class U>
>+struct GiveQualsTo;
>+
>+template <class T, class U>
>+struct GiveQualsTo<T&, U> {
>+  using type = U&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<T&&, U> {
>+  using type = U&&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<const T&, U> {
>+  using type = const U&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<const T&&, U> {
>+  using type = const U&&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<volatile T&, U> {
>+  using type = volatile U&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<volatile T&&, U> {
>+  using type = volatile U&&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<volatile const T&, U> {
>+  using type = volatile const U&;
>+};
>+
>+template <class T, class U>
>+struct GiveQualsTo<volatile const T&&, U> {
>+  using type = volatile const U&&;
>+};
>+
>+template <class T, class U>
>+using GiveQualsToT = typename GiveQualsTo<T, U>::type;
>+
>+// Convenience alias, since size_t integral_constant is used a lot in this file.
>+template <std::size_t I>
>+using SizeT = std::integral_constant<std::size_t, I>;
>+
>+using NPos = SizeT<variant_npos>;
>+
>+template <class Variant, class T, class = void>
>+struct IndexOfConstructedType {};
>+
>+template <std::size_t I, class Variant>
>+struct VariantAccessResultImpl;
>+
>+template <std::size_t I, template <class...> class Variantemplate, class... T>
>+struct VariantAccessResultImpl<I, Variantemplate<T...>&> {
>+  using type = typename absl::variant_alternative<I, variant<T...>>::type&;
>+};
>+
>+template <std::size_t I, template <class...> class Variantemplate, class... T>
>+struct VariantAccessResultImpl<I, const Variantemplate<T...>&> {
>+  using type =
>+      const typename absl::variant_alternative<I, variant<T...>>::type&;
>+};
>+
>+template <std::size_t I, template <class...> class Variantemplate, class... T>
>+struct VariantAccessResultImpl<I, Variantemplate<T...>&&> {
>+  using type = typename absl::variant_alternative<I, variant<T...>>::type&&;
>+};
>+
>+template <std::size_t I, template <class...> class Variantemplate, class... T>
>+struct VariantAccessResultImpl<I, const Variantemplate<T...>&&> {
>+  using type =
>+      const typename absl::variant_alternative<I, variant<T...>>::type&&;
>+};
>+
>+template <std::size_t I, class Variant>
>+using VariantAccessResult =
>+    typename VariantAccessResultImpl<I, Variant&&>::type;
>+
>+// NOTE: This is used instead of std::array to reduce instantiation overhead.
>+template <class T, std::size_t Size>
>+struct SimpleArray {
>+  static_assert(Size != 0, "");
>+  T value[Size];
>+};
>+
>+template <class T>
>+struct AccessedType {
>+  using type = T;
>+};
>+
>+template <class T>
>+using AccessedTypeT = typename AccessedType<T>::type;
>+
>+template <class T, std::size_t Size>
>+struct AccessedType<SimpleArray<T, Size>> {
>+  using type = AccessedTypeT<T>;
>+};
>+
>+template <class T>
>+constexpr T AccessSimpleArray(const T& value) {
>+  return value;
>+}
>+
>+template <class T, std::size_t Size, class... SizeT>
>+constexpr AccessedTypeT<T> AccessSimpleArray(const SimpleArray<T, Size>& table,
>+                                             std::size_t head_index,
>+                                             SizeT... tail_indices) {
>+  return AccessSimpleArray(table.value[head_index], tail_indices...);
>+}
>+
>+// Note: Intentionally is an alias.
>+template <class T>
>+using AlwaysZero = SizeT<0>;
>+
>+template <class Op, class... Vs>
>+struct VisitIndicesResultImpl {
>+  using type = absl::result_of_t<Op(AlwaysZero<Vs>...)>;
>+};
>+
>+template <class Op, class... Vs>
>+using VisitIndicesResultT = typename VisitIndicesResultImpl<Op, Vs...>::type;
>+
>+template <class ReturnType, class FunctionObject, class EndIndices,
>+          std::size_t... BoundIndices>
>+struct MakeVisitationMatrix;
>+
>+template <class ReturnType, class FunctionObject, std::size_t... Indices>
>+constexpr ReturnType call_with_indices(FunctionObject&& function) {
>+  static_assert(
>+      std::is_same<ReturnType, decltype(std::declval<FunctionObject>()(
>+                                   SizeT<Indices>()...))>::value,
>+      "Not all visitation overloads have the same return type.");
>+  return absl::forward<FunctionObject>(function)(SizeT<Indices>()...);
>+}
>+
>+template <class ReturnType, class FunctionObject, std::size_t... BoundIndices>
>+struct MakeVisitationMatrix<ReturnType, FunctionObject, index_sequence<>,
>+                            BoundIndices...> {
>+  using ResultType = ReturnType (*)(FunctionObject&&);
>+  static constexpr ResultType Run() {
>+    return &call_with_indices<ReturnType, FunctionObject,
>+                              (BoundIndices - 1)...>;
>+  }
>+};
>+
>+template <class ReturnType, class FunctionObject, class EndIndices,
>+          class CurrIndices, std::size_t... BoundIndices>
>+struct MakeVisitationMatrixImpl;
>+
>+template <class ReturnType, class FunctionObject, std::size_t... EndIndices,
>+          std::size_t... CurrIndices, std::size_t... BoundIndices>
>+struct MakeVisitationMatrixImpl<
>+    ReturnType, FunctionObject, index_sequence<EndIndices...>,
>+    index_sequence<CurrIndices...>, BoundIndices...> {
>+  using ResultType = SimpleArray<
>+      typename MakeVisitationMatrix<ReturnType, FunctionObject,
>+                                    index_sequence<EndIndices...>>::ResultType,
>+      sizeof...(CurrIndices)>;
>+
>+  static constexpr ResultType Run() {
>+    return {{MakeVisitationMatrix<ReturnType, FunctionObject,
>+                                  index_sequence<EndIndices...>,
>+                                  BoundIndices..., CurrIndices>::Run()...}};
>+  }
>+};
>+
>+template <class ReturnType, class FunctionObject, std::size_t HeadEndIndex,
>+          std::size_t... TailEndIndices, std::size_t... BoundIndices>
>+struct MakeVisitationMatrix<ReturnType, FunctionObject,
>+                            index_sequence<HeadEndIndex, TailEndIndices...>,
>+                            BoundIndices...>
>+    : MakeVisitationMatrixImpl<
>+          ReturnType, FunctionObject, index_sequence<TailEndIndices...>,
>+          absl::make_index_sequence<HeadEndIndex>, BoundIndices...> {};
>+
>+struct UnreachableSwitchCase {
>+  template <class Op>
>+  [[noreturn]] static VisitIndicesResultT<Op, std::size_t> Run(
>+      Op&& /*ignored*/) {
>+#if ABSL_HAVE_BUILTIN(__builtin_unreachable) || \
>+    (defined(__GNUC__) && !defined(__clang__))
>+    __builtin_unreachable();
>+#elif defined(_MSC_VER)
>+    __assume(false);
>+#else
>+    // Try to use assert of false being identified as an unreachable intrinsic.
>+    // NOTE: We use assert directly to increase chances of exploiting an assume
>+    //       intrinsic.
>+    assert(false);  // NOLINT
>+
>+    // Hack to silence potential no return warning -- cause an infinite loop.
>+    return Run(absl::forward<Op>(op));
>+#endif  // Checks for __builtin_unreachable
>+  }
>+};
>+
>+template <class Op, std::size_t I>
>+struct ReachableSwitchCase {
>+  static VisitIndicesResultT<Op, std::size_t> Run(Op&& op) {
>+    return absl::base_internal::Invoke(absl::forward<Op>(op), SizeT<I>());
>+  }
>+};
>+
>+// The number 33 is just a guess at a reasonable maximum to our switch. It is
>+// not based on any analysis. The reason it is a power of 2 plus 1 instead of a
>+// power of 2 is because the number was picked to correspond to a power of 2
>+// amount of "normal" alternatives, plus one for the possibility of the user
>+// providing "monostate" in addition to the more natural alternatives.
>+ABSL_INTERNAL_INLINE_CONSTEXPR(std::size_t, MaxUnrolledVisitCases, 33);
>+
>+// Note: The default-definition is for unreachable cases.
>+template <bool IsReachable>
>+struct PickCaseImpl {
>+  template <class Op, std::size_t I>
>+  using Apply = UnreachableSwitchCase;
>+};
>+
>+template <>
>+struct PickCaseImpl</*IsReachable =*/true> {
>+  template <class Op, std::size_t I>
>+  using Apply = ReachableSwitchCase<Op, I>;
>+};
>+
>+// Note: This form of dance with template aliases is to make sure that we
>+//       instantiate a number of templates proportional to the number of variant
>+//       alternatives rather than a number of templates proportional to our
>+//       maximum unrolled amount of visitation cases (aliases are effectively
>+//       "free" whereas other template instantiations are costly).
>+template <class Op, std::size_t I, std::size_t EndIndex>
>+using PickCase = typename PickCaseImpl<(I < EndIndex)>::template Apply<Op, I>;
>+
>+template <class ReturnType>
>+[[noreturn]] ReturnType TypedThrowBadVariantAccess() {
>+  absl::variant_internal::ThrowBadVariantAccess();
>+}
>+
>+// Given N variant sizes, determine the number of cases there would need to be
>+// in a single switch-statement that would cover every possibility in the
>+// corresponding N-ary visit operation.
>+template <std::size_t... NumAlternatives>
>+struct NumCasesOfSwitch;
>+
>+template <std::size_t HeadNumAlternatives, std::size_t... TailNumAlternatives>
>+struct NumCasesOfSwitch<HeadNumAlternatives, TailNumAlternatives...> {
>+  static constexpr std::size_t value =
>+      (HeadNumAlternatives + 1) *
>+      NumCasesOfSwitch<TailNumAlternatives...>::value;
>+};
>+
>+template <>
>+struct NumCasesOfSwitch<> {
>+  static constexpr std::size_t value = 1;
>+};
>+
>+// A switch statement optimizes better than the table of function pointers.
>+template <std::size_t EndIndex>
>+struct VisitIndicesSwitch {
>+  static_assert(EndIndex <= MaxUnrolledVisitCases,
>+                "Maximum unrolled switch size exceeded.");
>+
>+  template <class Op>
>+  static VisitIndicesResultT<Op, std::size_t> Run(Op&& op, std::size_t i) {
>+    switch (i) {
>+      case 0:
>+        return PickCase<Op, 0, EndIndex>::Run(absl::forward<Op>(op));
>+      case 1:
>+        return PickCase<Op, 1, EndIndex>::Run(absl::forward<Op>(op));
>+      case 2:
>+        return PickCase<Op, 2, EndIndex>::Run(absl::forward<Op>(op));
>+      case 3:
>+        return PickCase<Op, 3, EndIndex>::Run(absl::forward<Op>(op));
>+      case 4:
>+        return PickCase<Op, 4, EndIndex>::Run(absl::forward<Op>(op));
>+      case 5:
>+        return PickCase<Op, 5, EndIndex>::Run(absl::forward<Op>(op));
>+      case 6:
>+        return PickCase<Op, 6, EndIndex>::Run(absl::forward<Op>(op));
>+      case 7:
>+        return PickCase<Op, 7, EndIndex>::Run(absl::forward<Op>(op));
>+      case 8:
>+        return PickCase<Op, 8, EndIndex>::Run(absl::forward<Op>(op));
>+      case 9:
>+        return PickCase<Op, 9, EndIndex>::Run(absl::forward<Op>(op));
>+      case 10:
>+        return PickCase<Op, 10, EndIndex>::Run(absl::forward<Op>(op));
>+      case 11:
>+        return PickCase<Op, 11, EndIndex>::Run(absl::forward<Op>(op));
>+      case 12:
>+        return PickCase<Op, 12, EndIndex>::Run(absl::forward<Op>(op));
>+      case 13:
>+        return PickCase<Op, 13, EndIndex>::Run(absl::forward<Op>(op));
>+      case 14:
>+        return PickCase<Op, 14, EndIndex>::Run(absl::forward<Op>(op));
>+      case 15:
>+        return PickCase<Op, 15, EndIndex>::Run(absl::forward<Op>(op));
>+      case 16:
>+        return PickCase<Op, 16, EndIndex>::Run(absl::forward<Op>(op));
>+      case 17:
>+        return PickCase<Op, 17, EndIndex>::Run(absl::forward<Op>(op));
>+      case 18:
>+        return PickCase<Op, 18, EndIndex>::Run(absl::forward<Op>(op));
>+      case 19:
>+        return PickCase<Op, 19, EndIndex>::Run(absl::forward<Op>(op));
>+      case 20:
>+        return PickCase<Op, 20, EndIndex>::Run(absl::forward<Op>(op));
>+      case 21:
>+        return PickCase<Op, 21, EndIndex>::Run(absl::forward<Op>(op));
>+      case 22:
>+        return PickCase<Op, 22, EndIndex>::Run(absl::forward<Op>(op));
>+      case 23:
>+        return PickCase<Op, 23, EndIndex>::Run(absl::forward<Op>(op));
>+      case 24:
>+        return PickCase<Op, 24, EndIndex>::Run(absl::forward<Op>(op));
>+      case 25:
>+        return PickCase<Op, 25, EndIndex>::Run(absl::forward<Op>(op));
>+      case 26:
>+        return PickCase<Op, 26, EndIndex>::Run(absl::forward<Op>(op));
>+      case 27:
>+        return PickCase<Op, 27, EndIndex>::Run(absl::forward<Op>(op));
>+      case 28:
>+        return PickCase<Op, 28, EndIndex>::Run(absl::forward<Op>(op));
>+      case 29:
>+        return PickCase<Op, 29, EndIndex>::Run(absl::forward<Op>(op));
>+      case 30:
>+        return PickCase<Op, 30, EndIndex>::Run(absl::forward<Op>(op));
>+      case 31:
>+        return PickCase<Op, 31, EndIndex>::Run(absl::forward<Op>(op));
>+      case 32:
>+        return PickCase<Op, 32, EndIndex>::Run(absl::forward<Op>(op));
>+      default:
>+        ABSL_ASSERT(i == variant_npos);
>+        return absl::base_internal::Invoke(absl::forward<Op>(op), NPos());
>+    }
>+  }
>+};
>+
>+template <std::size_t... EndIndices>
>+struct VisitIndicesFallback {
>+  template <class Op, class... SizeT>
>+  static VisitIndicesResultT<Op, SizeT...> Run(Op&& op, SizeT... indices) {
>+    return AccessSimpleArray(
>+        MakeVisitationMatrix<VisitIndicesResultT<Op, SizeT...>, Op,
>+                             index_sequence<(EndIndices + 1)...>>::Run(),
>+        (indices + 1)...)(absl::forward<Op>(op));
>+  }
>+};
>+
>+// Take an N-dimensional series of indices and convert them into a single index
>+// without loss of information. The purpose of this is to be able to convert an
>+// N-ary visit operation into a single switch statement.
>+template <std::size_t...>
>+struct FlattenIndices;
>+
>+template <std::size_t HeadSize, std::size_t... TailSize>
>+struct FlattenIndices<HeadSize, TailSize...> {
>+  template<class... SizeType>
>+  static constexpr std::size_t Run(std::size_t head, SizeType... tail) {
>+    return head + HeadSize * FlattenIndices<TailSize...>::Run(tail...);
>+  }
>+};
>+
>+template <>
>+struct FlattenIndices<> {
>+  static constexpr std::size_t Run() { return 0; }
>+};
>+
>+// Take a single "flattened" index (flattened by FlattenIndices) and determine
>+// the value of the index of one of the logically represented dimensions.
>+template <std::size_t I, std::size_t IndexToGet, std::size_t HeadSize,
>+          std::size_t... TailSize>
>+struct UnflattenIndex {
>+  static constexpr std::size_t value =
>+      UnflattenIndex<I / HeadSize, IndexToGet - 1, TailSize...>::value;
>+};
>+
>+template <std::size_t I, std::size_t HeadSize, std::size_t... TailSize>
>+struct UnflattenIndex<I, 0, HeadSize, TailSize...> {
>+  static constexpr std::size_t value = (I % HeadSize);
>+};
>+
>+// The backend for converting an N-ary visit operation into a unary visit.
>+template <class IndexSequence, std::size_t... EndIndices>
>+struct VisitIndicesVariadicImpl;
>+
>+template <std::size_t... N, std::size_t... EndIndices>
>+struct VisitIndicesVariadicImpl<absl::index_sequence<N...>, EndIndices...> {
>+  // A type that can take an N-ary function object and converts it to a unary
>+  // function object that takes a single, flattened index, and "unflattens" it
>+  // into its individual dimensions when forwarding to the wrapped object.
>+  template <class Op>
>+  struct FlattenedOp {
>+    template <std::size_t I>
>+    VisitIndicesResultT<Op, decltype(EndIndices)...> operator()(
>+        SizeT<I> /*index*/) && {
>+      return base_internal::Invoke(
>+          absl::forward<Op>(op),
>+          SizeT<UnflattenIndex<I, N, (EndIndices + 1)...>::value -
>+                std::size_t{1}>()...);
>+    }
>+
>+    Op&& op;
>+  };
>+
>+  template <class Op, class... SizeType>
>+  static VisitIndicesResultT<Op, decltype(EndIndices)...> Run(
>+      Op&& op, SizeType... i) {
>+    return VisitIndicesSwitch<NumCasesOfSwitch<EndIndices...>::value>::Run(
>+        FlattenedOp<Op>{absl::forward<Op>(op)},
>+        FlattenIndices<(EndIndices + std::size_t{1})...>::Run(
>+            (i + std::size_t{1})...));
>+  }
>+};
>+
>+template <std::size_t... EndIndices>
>+struct VisitIndicesVariadic
>+    : VisitIndicesVariadicImpl<absl::make_index_sequence<sizeof...(EndIndices)>,
>+                               EndIndices...> {};
>+
>+// This implementation will flatten N-ary visit operations into a single switch
>+// statement when the number of cases would be less than our maximum specified
>+// switch-statement size.
>+// TODO(calabrese)
>+//   Based on benchmarks, determine whether the function table approach actually
>+//   does optimize better than a chain of switch statements and possibly update
>+//   the implementation accordingly. Also consider increasing the maximum switch
>+//   size.
>+template <std::size_t... EndIndices>
>+struct VisitIndices
>+    : absl::conditional_t<(NumCasesOfSwitch<EndIndices...>::value <=
>+                           MaxUnrolledVisitCases),
>+                          VisitIndicesVariadic<EndIndices...>,
>+                          VisitIndicesFallback<EndIndices...>> {};
>+
>+template <std::size_t EndIndex>
>+struct VisitIndices<EndIndex>
>+    : absl::conditional_t<(EndIndex <= MaxUnrolledVisitCases),
>+                          VisitIndicesSwitch<EndIndex>,
>+                          VisitIndicesFallback<EndIndex>> {};
>+
>+// Suppress bogus warning on MSVC: MSVC complains that the `reinterpret_cast`
>+// below is returning the address of a temporary or local object.
>+#ifdef _MSC_VER
>+#pragma warning(push)
>+#pragma warning(disable : 4172)
>+#endif  // _MSC_VER
>+
>+// TODO(calabrese) std::launder
>+// TODO(calabrese) constexpr
>+// NOTE: DO NOT REMOVE the `inline` keyword as it is necessary to work around a
>+// MSVC bug. See https://github.com/abseil/abseil-cpp/issues/129 for details.
>+template <class Self, std::size_t I>
>+inline VariantAccessResult<I, Self> AccessUnion(Self&& self, SizeT<I> /*i*/) {
>+  return reinterpret_cast<VariantAccessResult<I, Self>>(self);
>+}
>+
>+#ifdef _MSC_VER
>+#pragma warning(pop)
>+#endif  // _MSC_VER
>+
>+template <class T>
>+void DeducedDestroy(T& self) {  // NOLINT
>+  self.~T();
>+}
>+
>+// NOTE: This type exists as a single entity for variant and its bases to
>+// befriend. It contains helper functionality that manipulates the state of the
>+// variant, such as the implementation of things like assignment and emplace
>+// operations.
>+struct VariantCoreAccess {
>+  template <class VariantType>
>+  static typename VariantType::Variant& Derived(VariantType& self) {  // NOLINT
>+    return static_cast<typename VariantType::Variant&>(self);
>+  }
>+
>+  template <class VariantType>
>+  static const typename VariantType::Variant& Derived(
>+      const VariantType& self) {  // NOLINT
>+    return static_cast<const typename VariantType::Variant&>(self);
>+  }
>+
>+  template <class VariantType>
>+  static void Destroy(VariantType& self) {  // NOLINT
>+    Derived(self).destroy();
>+    self.index_ = absl::variant_npos;
>+  }
>+
>+  template <class Variant>
>+  static void SetIndex(Variant& self, std::size_t i) {  // NOLINT
>+    self.index_ = i;
>+  }
>+
>+  template <class Variant>
>+  static void InitFrom(Variant& self, Variant&& other) {  // NOLINT
>+    VisitIndices<absl::variant_size<Variant>::value>::Run(
>+        InitFromVisitor<Variant, Variant&&>{&self,
>+                                            std::forward<Variant>(other)},
>+        other.index());
>+    self.index_ = other.index();
>+  }
>+
>+  // Access a variant alternative, assuming the index is correct.
>+  template <std::size_t I, class Variant>
>+  static VariantAccessResult<I, Variant> Access(Variant&& self) {
>+    // This cast instead of invocation of AccessUnion with an rvalue is a
>+    // workaround for msvc. Without this there is a runtime failure when dealing
>+    // with rvalues.
>+    // TODO(calabrese) Reduce test case and find a simpler workaround.
>+    return static_cast<VariantAccessResult<I, Variant>>(
>+        variant_internal::AccessUnion(self.state_, SizeT<I>()));
>+  }
>+
>+  // Access a variant alternative, throwing if the index is incorrect.
>+  template <std::size_t I, class Variant>
>+  static VariantAccessResult<I, Variant> CheckedAccess(Variant&& self) {
>+    if (ABSL_PREDICT_FALSE(self.index_ != I)) {
>+      TypedThrowBadVariantAccess<VariantAccessResult<I, Variant>>();
>+    }
>+
>+    return Access<I>(absl::forward<Variant>(self));
>+  }
>+
>+  // The implementation of the move-assignment operation for a variant.
>+  template <class VType>
>+  struct MoveAssignVisitor {
>+    using DerivedType = typename VType::Variant;
>+    template <std::size_t NewIndex>
>+    void operator()(SizeT<NewIndex> /*new_i*/) const {
>+      if (left->index_ == NewIndex) {
>+        Access<NewIndex>(*left) = std::move(Access<NewIndex>(*right));
>+      } else {
>+        Derived(*left).template emplace<NewIndex>(
>+            std::move(Access<NewIndex>(*right)));
>+      }
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*new_i*/) const {
>+      Destroy(*left);
>+    }
>+
>+    VType* left;
>+    VType* right;
>+  };
>+
>+  template <class VType>
>+  static MoveAssignVisitor<VType> MakeMoveAssignVisitor(VType* left,
>+                                                        VType* other) {
>+    return {left, other};
>+  }
>+
>+  // The implementation of the assignment operation for a variant.
>+  template <class VType>
>+  struct CopyAssignVisitor {
>+    using DerivedType = typename VType::Variant;
>+    template <std::size_t NewIndex>
>+    void operator()(SizeT<NewIndex> /*new_i*/) const {
>+      using New =
>+          typename absl::variant_alternative<NewIndex, DerivedType>::type;
>+
>+      if (left->index_ == NewIndex) {
>+        Access<NewIndex>(*left) = Access<NewIndex>(*right);
>+      } else if (std::is_nothrow_copy_constructible<New>::value ||
>+                 !std::is_nothrow_move_constructible<New>::value) {
>+        Derived(*left).template emplace<NewIndex>(Access<NewIndex>(*right));
>+      } else {
>+        Derived(*left) = DerivedType(Derived(*right));
>+      }
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*new_i*/) const {
>+      Destroy(*left);
>+    }
>+
>+    VType* left;
>+    const VType* right;
>+  };
>+
>+  template <class VType>
>+  static CopyAssignVisitor<VType> MakeCopyAssignVisitor(VType* left,
>+                                                        const VType& other) {
>+    return {left, &other};
>+  }
>+
>+  // The implementation of conversion-assignment operations for variant.
>+  template <class Left, class QualifiedNew>
>+  struct ConversionAssignVisitor {
>+    using NewIndex =
>+        variant_internal::IndexOfConstructedType<Left, QualifiedNew>;
>+
>+    void operator()(SizeT<NewIndex::value> /*old_i*/
>+                    ) const {
>+      Access<NewIndex::value>(*left) = absl::forward<QualifiedNew>(other);
>+    }
>+
>+    template <std::size_t OldIndex>
>+    void operator()(SizeT<OldIndex> /*old_i*/
>+                    ) const {
>+      using New =
>+          typename absl::variant_alternative<NewIndex::value, Left>::type;
>+      if (std::is_nothrow_constructible<New, QualifiedNew>::value ||
>+          !std::is_nothrow_move_constructible<New>::value) {
>+        left->template emplace<NewIndex::value>(
>+            absl::forward<QualifiedNew>(other));
>+      } else {
>+        // the standard says "equivalent to
>+        // operator=(variant(std::forward<T>(t)))", but we use `emplace` here
>+        // because the variant's move assignment operator could be deleted.
>+        left->template emplace<NewIndex::value>(
>+            New(absl::forward<QualifiedNew>(other)));
>+      }
>+    }
>+
>+    Left* left;
>+    QualifiedNew&& other;
>+  };
>+
>+  template <class Left, class QualifiedNew>
>+  static ConversionAssignVisitor<Left, QualifiedNew>
>+  MakeConversionAssignVisitor(Left* left, QualifiedNew&& qual) {
>+    return {left, absl::forward<QualifiedNew>(qual)};
>+  }
>+
>+  // Backend for operations for `emplace()` which destructs `*self` then
>+  // construct a new alternative with `Args...`.
>+  template <std::size_t NewIndex, class Self, class... Args>
>+  static typename absl::variant_alternative<NewIndex, Self>::type& Replace(
>+      Self* self, Args&&... args) {
>+    Destroy(*self);
>+    using New = typename absl::variant_alternative<NewIndex, Self>::type;
>+    New* const result = ::new (static_cast<void*>(&self->state_))
>+        New(absl::forward<Args>(args)...);
>+    self->index_ = NewIndex;
>+    return *result;
>+  }
>+
>+  template <class LeftVariant, class QualifiedRightVariant>
>+  struct InitFromVisitor {
>+    template <std::size_t NewIndex>
>+    void operator()(SizeT<NewIndex> /*new_i*/) const {
>+      using Alternative =
>+          typename variant_alternative<NewIndex, LeftVariant>::type;
>+      ::new (static_cast<void*>(&left->state_)) Alternative(
>+          Access<NewIndex>(std::forward<QualifiedRightVariant>(right)));
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*new_i*/) const {
>+      // This space intentionally left blank.
>+    }
>+    LeftVariant* left;
>+    QualifiedRightVariant&& right;
>+  };
>+};
>+
>+template <class Expected, class... T>
>+struct IndexOfImpl;
>+
>+template <class Expected>
>+struct IndexOfImpl<Expected> {
>+  using IndexFromEnd = SizeT<0>;
>+  using MatchedIndexFromEnd = IndexFromEnd;
>+  using MultipleMatches = std::false_type;
>+};
>+
>+template <class Expected, class Head, class... Tail>
>+struct IndexOfImpl<Expected, Head, Tail...> : IndexOfImpl<Expected, Tail...> {
>+  using IndexFromEnd =
>+      SizeT<IndexOfImpl<Expected, Tail...>::IndexFromEnd::value + 1>;
>+};
>+
>+template <class Expected, class... Tail>
>+struct IndexOfImpl<Expected, Expected, Tail...>
>+    : IndexOfImpl<Expected, Tail...> {
>+  using IndexFromEnd =
>+      SizeT<IndexOfImpl<Expected, Tail...>::IndexFromEnd::value + 1>;
>+  using MatchedIndexFromEnd = IndexFromEnd;
>+  using MultipleMatches = std::integral_constant<
>+      bool, IndexOfImpl<Expected, Tail...>::MatchedIndexFromEnd::value != 0>;
>+};
>+
>+template <class Expected, class... Types>
>+struct IndexOfMeta {
>+  using Results = IndexOfImpl<Expected, Types...>;
>+  static_assert(!Results::MultipleMatches::value,
>+                "Attempted to access a variant by specifying a type that "
>+                "matches more than one alternative.");
>+  static_assert(Results::MatchedIndexFromEnd::value != 0,
>+                "Attempted to access a variant by specifying a type that does "
>+                "not match any alternative.");
>+  using type = SizeT<sizeof...(Types) - Results::MatchedIndexFromEnd::value>;
>+};
>+
>+template <class Expected, class... Types>
>+using IndexOf = typename IndexOfMeta<Expected, Types...>::type;
>+
>+template <class Variant, class T, std::size_t CurrIndex>
>+struct UnambiguousIndexOfImpl;
>+
>+// Terminating case encountered once we've checked all of the alternatives
>+template <class T, std::size_t CurrIndex>
>+struct UnambiguousIndexOfImpl<variant<>, T, CurrIndex> : SizeT<CurrIndex> {};
>+
>+// Case where T is not Head
>+template <class Head, class... Tail, class T, std::size_t CurrIndex>
>+struct UnambiguousIndexOfImpl<variant<Head, Tail...>, T, CurrIndex>
>+    : UnambiguousIndexOfImpl<variant<Tail...>, T, CurrIndex + 1>::type {};
>+
>+// Case where T is Head
>+template <class Head, class... Tail, std::size_t CurrIndex>
>+struct UnambiguousIndexOfImpl<variant<Head, Tail...>, Head, CurrIndex>
>+    : SizeT<UnambiguousIndexOfImpl<variant<Tail...>, Head, 0>::value ==
>+                    sizeof...(Tail)
>+                ? CurrIndex
>+                : CurrIndex + sizeof...(Tail) + 1> {};
>+
>+template <class Variant, class T>
>+struct UnambiguousIndexOf;
>+
>+struct NoMatch {
>+  struct type {};
>+};
>+
>+template <class... Alts, class T>
>+struct UnambiguousIndexOf<variant<Alts...>, T>
>+    : std::conditional<UnambiguousIndexOfImpl<variant<Alts...>, T, 0>::value !=
>+                           sizeof...(Alts),
>+                       UnambiguousIndexOfImpl<variant<Alts...>, T, 0>,
>+                       NoMatch>::type::type {};
>+
>+template <class T, std::size_t /*Dummy*/>
>+using UnambiguousTypeOfImpl = T;
>+
>+template <class Variant, class T>
>+using UnambiguousTypeOfT =
>+    UnambiguousTypeOfImpl<T, UnambiguousIndexOf<Variant, T>::value>;
>+
>+template <class H, class... T>
>+class VariantStateBase;
>+
>+// This is an implementation of the "imaginary function" that is described in
>+// [variant.ctor]
>+// It is used in order to determine which alternative to construct during
>+// initialization from some type T.
>+template <class Variant, std::size_t I = 0>
>+struct ImaginaryFun;
>+
>+template <std::size_t I>
>+struct ImaginaryFun<variant<>, I> {
>+  static void Run() = delete;
>+};
>+
>+template <class H, class... T, std::size_t I>
>+struct ImaginaryFun<variant<H, T...>, I> : ImaginaryFun<variant<T...>, I + 1> {
>+  using ImaginaryFun<variant<T...>, I + 1>::Run;
>+
>+  // NOTE: const& and && are used instead of by-value due to lack of guaranteed
>+  // move elision of C++17. This may have other minor differences, but tests
>+  // pass.
>+  static SizeT<I> Run(const H&);
>+  static SizeT<I> Run(H&&);
>+};
>+
>+// The following metafunctions are used in constructor and assignment
>+// constraints.
>+template <class Self, class T>
>+struct IsNeitherSelfNorInPlace : std::true_type {};
>+
>+template <class Self>
>+struct IsNeitherSelfNorInPlace<Self, Self> : std::false_type {};
>+
>+template <class Self, class T>
>+struct IsNeitherSelfNorInPlace<Self, in_place_type_t<T>> : std::false_type {};
>+
>+template <class Self, std::size_t I>
>+struct IsNeitherSelfNorInPlace<Self, in_place_index_t<I>> : std::false_type {};
>+
>+template <class Variant, class T, class = void>
>+struct ConversionIsPossibleImpl : std::false_type {};
>+
>+template <class Variant, class T>
>+struct ConversionIsPossibleImpl<
>+    Variant, T, void_t<decltype(ImaginaryFun<Variant>::Run(std::declval<T>()))>>
>+    : std::true_type {};
>+
>+template <class Variant, class T>
>+struct ConversionIsPossible : ConversionIsPossibleImpl<Variant, T>::type {};
>+
>+template <class Variant, class T>
>+struct IndexOfConstructedType<
>+    Variant, T, void_t<decltype(ImaginaryFun<Variant>::Run(std::declval<T>()))>>
>+    : decltype(ImaginaryFun<Variant>::Run(std::declval<T>())) {};
>+
>+template <std::size_t... Is>
>+struct ContainsVariantNPos
>+    : absl::negation<std::is_same<  // NOLINT
>+          absl::integer_sequence<bool, 0 <= Is...>,
>+          absl::integer_sequence<bool, Is != absl::variant_npos...>>> {};
>+
>+template <class Op, class... QualifiedVariants>
>+using RawVisitResult =
>+    absl::result_of_t<Op(VariantAccessResult<0, QualifiedVariants>...)>;
>+
>+// NOTE: The spec requires that all return-paths yield the same type and is not
>+// SFINAE-friendly, so we can deduce the return type by examining the first
>+// result. If it's not callable, then we get an error, but are compliant and
>+// fast to compile.
>+// TODO(calabrese) Possibly rewrite in a way that yields better compile errors
>+// at the cost of longer compile-times.
>+template <class Op, class... QualifiedVariants>
>+struct VisitResultImpl {
>+  using type =
>+      absl::result_of_t<Op(VariantAccessResult<0, QualifiedVariants>...)>;
>+};
>+
>+// Done in two steps intentionally so that we don't cause substitution to fail.
>+template <class Op, class... QualifiedVariants>
>+using VisitResult = typename VisitResultImpl<Op, QualifiedVariants...>::type;
>+
>+template <class Op, class... QualifiedVariants>
>+struct PerformVisitation {
>+  using ReturnType = VisitResult<Op, QualifiedVariants...>;
>+
>+  template <std::size_t... Is>
>+  constexpr ReturnType operator()(SizeT<Is>... indices) const {
>+    return Run(typename ContainsVariantNPos<Is...>::type{},
>+               absl::index_sequence_for<QualifiedVariants...>(), indices...);
>+  }
>+
>+  template <std::size_t... TupIs, std::size_t... Is>
>+  constexpr ReturnType Run(std::false_type /*has_valueless*/,
>+                           index_sequence<TupIs...>, SizeT<Is>...) const {
>+    return absl::base_internal::Invoke(
>+        absl::forward<Op>(op),
>+        VariantCoreAccess::Access<Is>(
>+            absl::forward<QualifiedVariants>(std::get<TupIs>(variant_tup)))...);
>+  }
>+
>+  template <std::size_t... TupIs, std::size_t... Is>
>+  [[noreturn]] ReturnType Run(std::true_type /*has_valueless*/,
>+                              index_sequence<TupIs...>, SizeT<Is>...) const {
>+    absl::variant_internal::ThrowBadVariantAccess();
>+  }
>+
>+  // TODO(calabrese) Avoid using a tuple, which causes lots of instantiations
>+  // Attempts using lambda variadic captures fail on current GCC.
>+  std::tuple<QualifiedVariants&&...> variant_tup;
>+  Op&& op;
>+};
>+
>+template <class... T>
>+union Union;
>+
>+// We want to allow for variant<> to be trivial. For that, we need the default
>+// constructor to be trivial, which means we can't define it ourselves.
>+// Instead, we use a non-default constructor that takes NoopConstructorTag
>+// that doesn't affect the triviality of the types.
>+struct NoopConstructorTag {};
>+
>+template <std::size_t I>
>+struct EmplaceTag {};
>+
>+template <>
>+union Union<> {
>+  constexpr explicit Union(NoopConstructorTag) noexcept {}
>+};
>+
>+// Suppress bogus warning on MSVC: MSVC complains that Union<T...> has a defined
>+// deleted destructor from the `std::is_destructible` check below.
>+#ifdef _MSC_VER
>+#pragma warning(push)
>+#pragma warning(disable : 4624)
>+#endif  // _MSC_VER
>+
>+template <class Head, class... Tail>
>+union Union<Head, Tail...> {
>+  using TailUnion = Union<Tail...>;
>+
>+  explicit constexpr Union(NoopConstructorTag /*tag*/) noexcept
>+      : tail(NoopConstructorTag()) {}
>+
>+  template <class... P>
>+  explicit constexpr Union(EmplaceTag<0>, P&&... args)
>+      : head(absl::forward<P>(args)...) {}
>+
>+  template <std::size_t I, class... P>
>+  explicit constexpr Union(EmplaceTag<I>, P&&... args)
>+      : tail(EmplaceTag<I - 1>{}, absl::forward<P>(args)...) {}
>+
>+  Head head;
>+  TailUnion tail;
>+};
>+
>+#ifdef _MSC_VER
>+#pragma warning(pop)
>+#endif  // _MSC_VER
>+
>+// TODO(calabrese) Just contain a Union in this union (certain configs fail).
>+template <class... T>
>+union DestructibleUnionImpl;
>+
>+template <>
>+union DestructibleUnionImpl<> {
>+  constexpr explicit DestructibleUnionImpl(NoopConstructorTag) noexcept {}
>+};
>+
>+template <class Head, class... Tail>
>+union DestructibleUnionImpl<Head, Tail...> {
>+  using TailUnion = DestructibleUnionImpl<Tail...>;
>+
>+  explicit constexpr DestructibleUnionImpl(NoopConstructorTag /*tag*/) noexcept
>+      : tail(NoopConstructorTag()) {}
>+
>+  template <class... P>
>+  explicit constexpr DestructibleUnionImpl(EmplaceTag<0>, P&&... args)
>+      : head(absl::forward<P>(args)...) {}
>+
>+  template <std::size_t I, class... P>
>+  explicit constexpr DestructibleUnionImpl(EmplaceTag<I>, P&&... args)
>+      : tail(EmplaceTag<I - 1>{}, absl::forward<P>(args)...) {}
>+
>+  ~DestructibleUnionImpl() {}
>+
>+  Head head;
>+  TailUnion tail;
>+};
>+
>+// This union type is destructible even if one or more T are not trivially
>+// destructible. In the case that all T are trivially destructible, then so is
>+// this resultant type.
>+template <class... T>
>+using DestructibleUnion =
>+    absl::conditional_t<std::is_destructible<Union<T...>>::value, Union<T...>,
>+                        DestructibleUnionImpl<T...>>;
>+
>+// Deepest base, containing the actual union and the discriminator
>+template <class H, class... T>
>+class VariantStateBase {
>+ protected:
>+  using Variant = variant<H, T...>;
>+
>+  template <class LazyH = H,
>+            class ConstructibleH = absl::enable_if_t<
>+                std::is_default_constructible<LazyH>::value, LazyH>>
>+  constexpr VariantStateBase() noexcept(
>+      std::is_nothrow_default_constructible<ConstructibleH>::value)
>+      : state_(EmplaceTag<0>()), index_(0) {}
>+
>+  template <std::size_t I, class... P>
>+  explicit constexpr VariantStateBase(EmplaceTag<I> tag, P&&... args)
>+      : state_(tag, absl::forward<P>(args)...), index_(I) {}
>+
>+  explicit constexpr VariantStateBase(NoopConstructorTag)
>+      : state_(NoopConstructorTag()), index_(variant_npos) {}
>+
>+  void destroy() {}  // Does nothing (shadowed in child if non-trivial)
>+
>+  DestructibleUnion<H, T...> state_;
>+  std::size_t index_;
>+};
>+
>+using absl::internal::identity;
>+
>+// OverloadSet::Overload() is a unary function which is overloaded to
>+// take any of the element types of the variant, by reference-to-const.
>+// The return type of the overload on T is identity<T>, so that you
>+// can statically determine which overload was called.
>+//
>+// Overload() is not defined, so it can only be called in unevaluated
>+// contexts.
>+template <typename... Ts>
>+struct OverloadSet;
>+
>+template <typename T, typename... Ts>
>+struct OverloadSet<T, Ts...> : OverloadSet<Ts...> {
>+  using Base = OverloadSet<Ts...>;
>+  static identity<T> Overload(const T&);
>+  using Base::Overload;
>+};
>+
>+template <>
>+struct OverloadSet<> {
>+  // For any case not handled above.
>+  static void Overload(...);
>+};
>+
>+template <class T>
>+using LessThanResult = decltype(std::declval<T>() < std::declval<T>());
>+
>+template <class T>
>+using GreaterThanResult = decltype(std::declval<T>() > std::declval<T>());
>+
>+template <class T>
>+using LessThanOrEqualResult = decltype(std::declval<T>() <= std::declval<T>());
>+
>+template <class T>
>+using GreaterThanOrEqualResult =
>+    decltype(std::declval<T>() >= std::declval<T>());
>+
>+template <class T>
>+using EqualResult = decltype(std::declval<T>() == std::declval<T>());
>+
>+template <class T>
>+using NotEqualResult = decltype(std::declval<T>() != std::declval<T>());
>+
>+using type_traits_internal::is_detected_convertible;
>+
>+template <class... T>
>+using RequireAllHaveEqualT = absl::enable_if_t<
>+    absl::conjunction<is_detected_convertible<bool, EqualResult, T>...>::value,
>+    bool>;
>+
>+template <class... T>
>+using RequireAllHaveNotEqualT =
>+    absl::enable_if_t<absl::conjunction<is_detected_convertible<
>+                          bool, NotEqualResult, T>...>::value,
>+                      bool>;
>+
>+template <class... T>
>+using RequireAllHaveLessThanT =
>+    absl::enable_if_t<absl::conjunction<is_detected_convertible<
>+                          bool, LessThanResult, T>...>::value,
>+                      bool>;
>+
>+template <class... T>
>+using RequireAllHaveLessThanOrEqualT =
>+    absl::enable_if_t<absl::conjunction<is_detected_convertible<
>+                          bool, LessThanOrEqualResult, T>...>::value,
>+                      bool>;
>+
>+template <class... T>
>+using RequireAllHaveGreaterThanOrEqualT =
>+    absl::enable_if_t<absl::conjunction<is_detected_convertible<
>+                          bool, GreaterThanOrEqualResult, T>...>::value,
>+                      bool>;
>+
>+template <class... T>
>+using RequireAllHaveGreaterThanT =
>+    absl::enable_if_t<absl::conjunction<is_detected_convertible<
>+                          bool, GreaterThanResult, T>...>::value,
>+                      bool>;
>+
>+// Helper template containing implementations details of variant that can't go
>+// in the private section. For convenience, this takes the variant type as a
>+// single template parameter.
>+template <typename T>
>+struct VariantHelper;
>+
>+template <typename... Ts>
>+struct VariantHelper<variant<Ts...>> {
>+  // Type metafunction which returns the element type selected if
>+  // OverloadSet::Overload() is well-formed when called with argument type U.
>+  template <typename U>
>+  using BestMatch = decltype(
>+      variant_internal::OverloadSet<Ts...>::Overload(std::declval<U>()));
>+
>+  // Type metafunction which returns true if OverloadSet::Overload() is
>+  // well-formed when called with argument type U.
>+  // CanAccept can't be just an alias because there is a MSVC bug on parameter
>+  // pack expansion involving decltype.
>+  template <typename U>
>+  struct CanAccept :
>+      std::integral_constant<bool, !std::is_void<BestMatch<U>>::value> {};
>+
>+  // Type metafunction which returns true if Other is an instantiation of
>+  // variant, and variants's converting constructor from Other will be
>+  // well-formed. We will use this to remove constructors that would be
>+  // ill-formed from the overload set.
>+  template <typename Other>
>+  struct CanConvertFrom;
>+
>+  template <typename... Us>
>+  struct CanConvertFrom<variant<Us...>>
>+      : public absl::conjunction<CanAccept<Us>...> {};
>+};
>+
>+// A type with nontrivial copy ctor and trivial move ctor.
>+struct TrivialMoveOnly {
>+  TrivialMoveOnly(TrivialMoveOnly&&) = default;
>+};
>+
>+// Trait class to detect whether a type is trivially move constructible.
>+// A union's defaulted copy/move constructor is deleted if any variant member's
>+// copy/move constructor is nontrivial.
>+template <typename T>
>+struct IsTriviallyMoveConstructible:
>+  std::is_move_constructible<Union<T, TrivialMoveOnly>> {};
>+
>+// To guarantee triviality of all special-member functions that can be trivial,
>+// we use a chain of conditional bases for each one.
>+// The order of inheritance of bases from child to base are logically:
>+//
>+// variant
>+// VariantCopyAssignBase
>+// VariantMoveAssignBase
>+// VariantCopyBase
>+// VariantMoveBase
>+// VariantStateBaseDestructor
>+// VariantStateBase
>+//
>+// Note that there is a separate branch at each base that is dependent on
>+// whether or not that corresponding special-member-function can be trivial in
>+// the resultant variant type.
>+
>+template <class... T>
>+class VariantStateBaseDestructorNontrivial;
>+
>+template <class... T>
>+class VariantMoveBaseNontrivial;
>+
>+template <class... T>
>+class VariantCopyBaseNontrivial;
>+
>+template <class... T>
>+class VariantMoveAssignBaseNontrivial;
>+
>+template <class... T>
>+class VariantCopyAssignBaseNontrivial;
>+
>+// Base that is dependent on whether or not the destructor can be trivial.
>+template <class... T>
>+using VariantStateBaseDestructor =
>+    absl::conditional_t<std::is_destructible<Union<T...>>::value,
>+                        VariantStateBase<T...>,
>+                        VariantStateBaseDestructorNontrivial<T...>>;
>+
>+// Base that is dependent on whether or not the move-constructor can be
>+// implicitly generated by the compiler (trivial or deleted).
>+// Previously we were using `std::is_move_constructible<Union<T...>>` to check
>+// whether all Ts have trivial move constructor, but it ran into a GCC bug:
>+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84866
>+// So we have to use a different approach (i.e. `HasTrivialMoveConstructor`) to
>+// work around the bug.
>+template <class... T>
>+using VariantMoveBase = absl::conditional_t<
>+    absl::disjunction<
>+        absl::negation<absl::conjunction<std::is_move_constructible<T>...>>,
>+        absl::conjunction<IsTriviallyMoveConstructible<T>...>>::value,
>+    VariantStateBaseDestructor<T...>, VariantMoveBaseNontrivial<T...>>;
>+
>+// Base that is dependent on whether or not the copy-constructor can be trivial.
>+template <class... T>
>+using VariantCopyBase = absl::conditional_t<
>+    absl::disjunction<
>+        absl::negation<absl::conjunction<std::is_copy_constructible<T>...>>,
>+        std::is_copy_constructible<Union<T...>>>::value,
>+    VariantMoveBase<T...>, VariantCopyBaseNontrivial<T...>>;
>+
>+// Base that is dependent on whether or not the move-assign can be trivial.
>+template <class... T>
>+using VariantMoveAssignBase = absl::conditional_t<
>+    absl::disjunction<absl::conjunction<std::is_move_assignable<Union<T...>>,
>+                                        std::is_move_constructible<Union<T...>>,
>+                                        std::is_destructible<Union<T...>>>,
>+                      absl::negation<absl::conjunction<
>+                          std::is_move_constructible<T>...,
>+                          std::is_move_assignable<T>...>>>::value,
>+    VariantCopyBase<T...>, VariantMoveAssignBaseNontrivial<T...>>;
>+
>+// Base that is dependent on whether or not the copy-assign can be trivial.
>+template <class... T>
>+using VariantCopyAssignBase = absl::conditional_t<
>+    absl::disjunction<absl::conjunction<std::is_copy_assignable<Union<T...>>,
>+                                        std::is_copy_constructible<Union<T...>>,
>+                                        std::is_destructible<Union<T...>>>,
>+                      absl::negation<absl::conjunction<
>+                          std::is_copy_constructible<T>...,
>+                          std::is_copy_assignable<T>...>>>::value,
>+    VariantMoveAssignBase<T...>, VariantCopyAssignBaseNontrivial<T...>>;
>+
>+template <class... T>
>+using VariantBase = VariantCopyAssignBase<T...>;
>+
>+template <class... T>
>+class VariantStateBaseDestructorNontrivial : protected VariantStateBase<T...> {
>+ private:
>+  using Base = VariantStateBase<T...>;
>+
>+ protected:
>+  using Base::Base;
>+
>+  VariantStateBaseDestructorNontrivial() = default;
>+  VariantStateBaseDestructorNontrivial(VariantStateBaseDestructorNontrivial&&) =
>+      default;
>+  VariantStateBaseDestructorNontrivial(
>+      const VariantStateBaseDestructorNontrivial&) = default;
>+  VariantStateBaseDestructorNontrivial& operator=(
>+      VariantStateBaseDestructorNontrivial&&) = default;
>+  VariantStateBaseDestructorNontrivial& operator=(
>+      const VariantStateBaseDestructorNontrivial&) = default;
>+
>+  struct Destroyer {
>+    template <std::size_t I>
>+    void operator()(SizeT<I> i) const {
>+      using Alternative =
>+          typename absl::variant_alternative<I, variant<T...>>::type;
>+      variant_internal::AccessUnion(self->state_, i).~Alternative();
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*i*/) const {
>+      // This space intentionally left blank
>+    }
>+
>+    VariantStateBaseDestructorNontrivial* self;
>+  };
>+
>+  void destroy() { VisitIndices<sizeof...(T)>::Run(Destroyer{this}, index_); }
>+
>+  ~VariantStateBaseDestructorNontrivial() { destroy(); }
>+
>+ protected:
>+  using Base::index_;
>+  using Base::state_;
>+};
>+
>+template <class... T>
>+class VariantMoveBaseNontrivial : protected VariantStateBaseDestructor<T...> {
>+ private:
>+  using Base = VariantStateBaseDestructor<T...>;
>+
>+ protected:
>+  using Base::Base;
>+
>+  struct Construct {
>+    template <std::size_t I>
>+    void operator()(SizeT<I> i) const {
>+      using Alternative =
>+          typename absl::variant_alternative<I, variant<T...>>::type;
>+      ::new (static_cast<void*>(&self->state_)) Alternative(
>+          variant_internal::AccessUnion(absl::move(other->state_), i));
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*i*/) const {}
>+
>+    VariantMoveBaseNontrivial* self;
>+    VariantMoveBaseNontrivial* other;
>+  };
>+
>+  VariantMoveBaseNontrivial() = default;
>+  VariantMoveBaseNontrivial(VariantMoveBaseNontrivial&& other) noexcept(
>+      absl::conjunction<std::is_nothrow_move_constructible<T>...>::value)
>+      : Base(NoopConstructorTag()) {
>+    VisitIndices<sizeof...(T)>::Run(Construct{this, &other}, other.index_);
>+    index_ = other.index_;
>+  }
>+
>+  VariantMoveBaseNontrivial(VariantMoveBaseNontrivial const&) = default;
>+
>+  VariantMoveBaseNontrivial& operator=(VariantMoveBaseNontrivial&&) = default;
>+  VariantMoveBaseNontrivial& operator=(VariantMoveBaseNontrivial const&) =
>+      default;
>+
>+ protected:
>+  using Base::index_;
>+  using Base::state_;
>+};
>+
>+template <class... T>
>+class VariantCopyBaseNontrivial : protected VariantMoveBase<T...> {
>+ private:
>+  using Base = VariantMoveBase<T...>;
>+
>+ protected:
>+  using Base::Base;
>+
>+  VariantCopyBaseNontrivial() = default;
>+  VariantCopyBaseNontrivial(VariantCopyBaseNontrivial&&) = default;
>+
>+  struct Construct {
>+    template <std::size_t I>
>+    void operator()(SizeT<I> i) const {
>+      using Alternative =
>+          typename absl::variant_alternative<I, variant<T...>>::type;
>+      ::new (static_cast<void*>(&self->state_))
>+          Alternative(variant_internal::AccessUnion(other->state_, i));
>+    }
>+
>+    void operator()(SizeT<absl::variant_npos> /*i*/) const {}
>+
>+    VariantCopyBaseNontrivial* self;
>+    const VariantCopyBaseNontrivial* other;
>+  };
>+
>+  VariantCopyBaseNontrivial(VariantCopyBaseNontrivial const& other)
>+      : Base(NoopConstructorTag()) {
>+    VisitIndices<sizeof...(T)>::Run(Construct{this, &other}, other.index_);
>+    index_ = other.index_;
>+  }
>+
>+  VariantCopyBaseNontrivial& operator=(VariantCopyBaseNontrivial&&) = default;
>+  VariantCopyBaseNontrivial& operator=(VariantCopyBaseNontrivial const&) =
>+      default;
>+
>+ protected:
>+  using Base::index_;
>+  using Base::state_;
>+};
>+
>+template <class... T>
>+class VariantMoveAssignBaseNontrivial : protected VariantCopyBase<T...> {
>+  friend struct VariantCoreAccess;
>+
>+ private:
>+  using Base = VariantCopyBase<T...>;
>+
>+ protected:
>+  using Base::Base;
>+
>+  VariantMoveAssignBaseNontrivial() = default;
>+  VariantMoveAssignBaseNontrivial(VariantMoveAssignBaseNontrivial&&) = default;
>+  VariantMoveAssignBaseNontrivial(const VariantMoveAssignBaseNontrivial&) =
>+      default;
>+  VariantMoveAssignBaseNontrivial& operator=(
>+      VariantMoveAssignBaseNontrivial const&) = default;
>+
>+    VariantMoveAssignBaseNontrivial&
>+    operator=(VariantMoveAssignBaseNontrivial&& other) noexcept(
>+        absl::conjunction<std::is_nothrow_move_constructible<T>...,
>+                          std::is_nothrow_move_assignable<T>...>::value) {
>+      VisitIndices<sizeof...(T)>::Run(
>+          VariantCoreAccess::MakeMoveAssignVisitor(this, &other), other.index_);
>+      return *this;
>+    }
>+
>+ protected:
>+  using Base::index_;
>+  using Base::state_;
>+};
>+
>+template <class... T>
>+class VariantCopyAssignBaseNontrivial : protected VariantMoveAssignBase<T...> {
>+  friend struct VariantCoreAccess;
>+
>+ private:
>+  using Base = VariantMoveAssignBase<T...>;
>+
>+ protected:
>+  using Base::Base;
>+
>+  VariantCopyAssignBaseNontrivial() = default;
>+  VariantCopyAssignBaseNontrivial(VariantCopyAssignBaseNontrivial&&) = default;
>+  VariantCopyAssignBaseNontrivial(const VariantCopyAssignBaseNontrivial&) =
>+      default;
>+  VariantCopyAssignBaseNontrivial& operator=(
>+      VariantCopyAssignBaseNontrivial&&) = default;
>+
>+    VariantCopyAssignBaseNontrivial& operator=(
>+        const VariantCopyAssignBaseNontrivial& other) {
>+      VisitIndices<sizeof...(T)>::Run(
>+          VariantCoreAccess::MakeCopyAssignVisitor(this, other), other.index_);
>+      return *this;
>+    }
>+
>+ protected:
>+  using Base::index_;
>+  using Base::state_;
>+};
>+
>+////////////////////////////////////////
>+// Visitors for Comparison Operations //
>+////////////////////////////////////////
>+
>+template <class... Types>
>+struct EqualsOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return true;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) == VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+template <class... Types>
>+struct NotEqualsOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return false;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) != VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+template <class... Types>
>+struct LessThanOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return false;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) < VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+template <class... Types>
>+struct GreaterThanOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return false;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) > VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+template <class... Types>
>+struct LessThanOrEqualsOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return true;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) <= VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+template <class... Types>
>+struct GreaterThanOrEqualsOp {
>+  const variant<Types...>* v;
>+  const variant<Types...>* w;
>+
>+  constexpr bool operator()(SizeT<absl::variant_npos> /*v_i*/) const {
>+    return true;
>+  }
>+
>+  template <std::size_t I>
>+  constexpr bool operator()(SizeT<I> /*v_i*/) const {
>+    return VariantCoreAccess::Access<I>(*v) >= VariantCoreAccess::Access<I>(*w);
>+  }
>+};
>+
>+// Precondition: v.index() == w.index();
>+template <class... Types>
>+struct SwapSameIndex {
>+  variant<Types...>* v;
>+  variant<Types...>* w;
>+  template <std::size_t I>
>+  void operator()(SizeT<I>) const {
>+    using std::swap;
>+    swap(VariantCoreAccess::Access<I>(*v), VariantCoreAccess::Access<I>(*w));
>+  }
>+
>+  void operator()(SizeT<variant_npos>) const {}
>+};
>+
>+// TODO(calabrese) do this from a different namespace for proper adl usage
>+template <class... Types>
>+struct Swap {
>+  variant<Types...>* v;
>+  variant<Types...>* w;
>+
>+  void generic_swap() const {
>+    variant<Types...> tmp(std::move(*w));
>+    VariantCoreAccess::Destroy(*w);
>+    VariantCoreAccess::InitFrom(*w, std::move(*v));
>+    VariantCoreAccess::Destroy(*v);
>+    VariantCoreAccess::InitFrom(*v, std::move(tmp));
>+  }
>+
>+  void operator()(SizeT<absl::variant_npos> /*w_i*/) const {
>+    if (!v->valueless_by_exception()) {
>+      generic_swap();
>+    }
>+  }
>+
>+  template <std::size_t Wi>
>+  void operator()(SizeT<Wi> /*w_i*/) {
>+    if (v->index() == Wi) {
>+      VisitIndices<sizeof...(Types)>::Run(SwapSameIndex<Types...>{v, w}, Wi);
>+    } else {
>+      generic_swap();
>+    }
>+  }
>+};
>+
>+template <typename Variant, typename = void, typename... Ts>
>+struct VariantHashBase {
>+  VariantHashBase() = delete;
>+  VariantHashBase(const VariantHashBase&) = delete;
>+  VariantHashBase(VariantHashBase&&) = delete;
>+  VariantHashBase& operator=(const VariantHashBase&) = delete;
>+  VariantHashBase& operator=(VariantHashBase&&) = delete;
>+};
>+
>+struct VariantHashVisitor {
>+  template <typename T>
>+  size_t operator()(const T& t) {
>+    return std::hash<T>{}(t);
>+  }
>+};
>+
>+template <typename Variant, typename... Ts>
>+struct VariantHashBase<Variant,
>+                       absl::enable_if_t<absl::conjunction<
>+                           type_traits_internal::IsHashEnabled<Ts>...>::value>,
>+                       Ts...> {
>+  using argument_type = Variant;
>+  using result_type = size_t;
>+  size_t operator()(const Variant& var) const {
>+    if (var.valueless_by_exception()) {
>+      return 239799884;
>+    }
>+    size_t result = VisitIndices<variant_size<Variant>::value>::Run(
>+        PerformVisitation<VariantHashVisitor, const Variant&>{
>+            std::forward_as_tuple(var), VariantHashVisitor{}},
>+        var.index());
>+    // Combine the index and the hash result in order to distinguish
>+    // std::variant<int, int> holding the same value as different alternative.
>+    return result ^ var.index();
>+  }
>+};
>+
>+}  // namespace variant_internal
>+}  // namespace absl
>+
>+#endif  // ABSL_TYPES_variant_internal_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..ef2729041990bbe162fe20d8f28bf9407b755089
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.cc
>@@ -0,0 +1,24 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/optional.h"
>+
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+namespace absl {
>+
>+nullopt_t::init_t nullopt_t::init;
>+extern const nullopt_t nullopt{nullopt_t::init};
>+
>+}  // namespace absl
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c837cddeef48942647e7f8292d0163750946b2b6
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional.h
>@@ -0,0 +1,1141 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// optional.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines the `absl::optional` type for holding a value which
>+// may or may not be present. This type is useful for providing value semantics
>+// for operations that may either wish to return or hold "something-or-nothing".
>+//
>+// Example:
>+//
>+//   // A common way to signal operation failure is to provide an output
>+//   // parameter and a bool return type:
>+//   bool AcquireResource(const Input&, Resource * out);
>+//
>+//   // Providing an absl::optional return type provides a cleaner API:
>+//   absl::optional<Resource> AcquireResource(const Input&);
>+//
>+// `absl::optional` is a C++11 compatible version of the C++17 `std::optional`
>+// abstraction and is designed to be a drop-in replacement for code compliant
>+// with C++17.
>+#ifndef ABSL_TYPES_OPTIONAL_H_
>+#define ABSL_TYPES_OPTIONAL_H_
>+
>+#include "absl/base/config.h"
>+#include "absl/utility/utility.h"
>+
>+#ifdef ABSL_HAVE_STD_OPTIONAL
>+
>+#include <optional>
>+
>+namespace absl {
>+using std::bad_optional_access;
>+using std::optional;
>+using std::make_optional;
>+using std::nullopt_t;
>+using std::nullopt;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_OPTIONAL
>+
>+#include <cassert>
>+#include <functional>
>+#include <initializer_list>
>+#include <new>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/memory/memory.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/types/bad_optional_access.h"
>+
>+// ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS
>+//
>+// Inheriting constructors is supported in GCC 4.8+, Clang 3.3+ and MSVC 2015.
>+// __cpp_inheriting_constructors is a predefined macro and a recommended way to
>+// check for this language feature, but GCC doesn't support it until 5.0 and
>+// Clang doesn't support it until 3.6.
>+// Also, MSVC 2015 has a bug: it doesn't inherit the constexpr template
>+// constructor. For example, the following code won't work on MSVC 2015 Update3:
>+// struct Base {
>+//   int t;
>+//   template <typename T>
>+//   constexpr Base(T t_) : t(t_) {}
>+// };
>+// struct Foo : Base {
>+//   using Base::Base;
>+// }
>+// constexpr Foo foo(0);  // doesn't work on MSVC 2015
>+#if defined(__clang__)
>+#if __has_feature(cxx_inheriting_constructors)
>+#define ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS 1
>+#endif
>+#elif (defined(__GNUC__) &&                                       \
>+       (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 8)) || \
>+    (__cpp_inheriting_constructors >= 200802) ||                  \
>+    (defined(_MSC_VER) && _MSC_VER >= 1910)
>+#define ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS 1
>+#endif
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// absl::optional
>+// -----------------------------------------------------------------------------
>+//
>+// A value of type `absl::optional<T>` holds either a value of `T` or an
>+// "empty" value.  When it holds a value of `T`, it stores it as a direct
>+// sub-object, so `sizeof(optional<T>)` is approximately
>+// `sizeof(T) + sizeof(bool)`.
>+//
>+// This implementation is based on the specification in the latest draft of the
>+// C++17 `std::optional` specification as of May 2017, section 20.6.
>+//
>+// Differences between `absl::optional<T>` and `std::optional<T>` include:
>+//
>+//    * `constexpr` is not used for non-const member functions.
>+//      (dependency on some differences between C++11 and C++14.)
>+//    * `absl::nullopt` and `absl::in_place` are not declared `constexpr`. We
>+//      need the inline variable support in C++17 for external linkage.
>+//    * Throws `absl::bad_optional_access` instead of
>+//      `std::bad_optional_access`.
>+//    * `optional::swap()` and `absl::swap()` relies on
>+//      `std::is_(nothrow_)swappable()`, which has been introduced in C++17.
>+//      As a workaround, we assume `is_swappable()` is always `true`
>+//      and `is_nothrow_swappable()` is the same as `std::is_trivial()`.
>+//    * `make_optional()` cannot be declared `constexpr` due to the absence of
>+//      guaranteed copy elision.
>+//    * The move constructor's `noexcept` specification is stronger, i.e. if the
>+//      default allocator is non-throwing (via setting
>+//      `ABSL_ALLOCATOR_NOTHROW`), it evaluates to `noexcept(true)`, because
>+//      we assume
>+//       a) move constructors should only throw due to allocation failure and
>+//       b) if T's move constructor allocates, it uses the same allocation
>+//          function as the default allocator.
>+template <typename T>
>+class optional;
>+
>+// nullopt_t
>+//
>+// Class type for `absl::nullopt` used to indicate an `absl::optional<T>` type
>+// that does not contain a value.
>+struct nullopt_t {
>+  struct init_t {};
>+  static init_t init;
>+
>+  // It must not be default-constructible to avoid ambiguity for opt = {}.
>+  // Note the non-const reference, which is to eliminate ambiguity for code
>+  // like:
>+  //
>+  // struct S { int value; };
>+  //
>+  // void Test() {
>+  //   optional<S> opt;
>+  //   opt = {{}};
>+  // }
>+  explicit constexpr nullopt_t(init_t& /*unused*/) {}
>+};
>+
>+// nullopt
>+//
>+// A tag constant of type `absl::nullopt_t` used to indicate an empty
>+// `absl::optional` in certain functions, such as construction or assignment.
>+extern const nullopt_t nullopt;
>+
>+namespace optional_internal {
>+
>+struct empty_struct {};
>+// This class stores the data in optional<T>.
>+// It is specialized based on whether T is trivially destructible.
>+// This is the specialization for non trivially destructible type.
>+template <typename T, bool = std::is_trivially_destructible<T>::value>
>+class optional_data_dtor_base {
>+  struct dummy_type {
>+    static_assert(sizeof(T) % sizeof(empty_struct) == 0, "");
>+    // Use an array to avoid GCC 6 placement-new warning.
>+    empty_struct data[sizeof(T) / sizeof(empty_struct)];
>+  };
>+
>+ protected:
>+  // Whether there is data or not.
>+  bool engaged_;
>+  // Data storage
>+  union {
>+    dummy_type dummy_;
>+    T data_;
>+  };
>+
>+  void destruct() noexcept {
>+    if (engaged_) {
>+      data_.~T();
>+      engaged_ = false;
>+    }
>+  }
>+
>+  // dummy_ must be initialized for constexpr constructor.
>+  constexpr optional_data_dtor_base() noexcept : engaged_(false), dummy_{{}} {}
>+
>+  template <typename... Args>
>+  constexpr explicit optional_data_dtor_base(in_place_t, Args&&... args)
>+      : engaged_(true), data_(absl::forward<Args>(args)...) {}
>+
>+  ~optional_data_dtor_base() { destruct(); }
>+};
>+
>+// Specialization for trivially destructible type.
>+template <typename T>
>+class optional_data_dtor_base<T, true> {
>+  struct dummy_type {
>+    static_assert(sizeof(T) % sizeof(empty_struct) == 0, "");
>+    // Use array to avoid GCC 6 placement-new warning.
>+    empty_struct data[sizeof(T) / sizeof(empty_struct)];
>+  };
>+
>+ protected:
>+  // Whether there is data or not.
>+  bool engaged_;
>+  // Data storage
>+  union {
>+    dummy_type dummy_;
>+    T data_;
>+  };
>+  void destruct() noexcept { engaged_ = false; }
>+
>+  // dummy_ must be initialized for constexpr constructor.
>+  constexpr optional_data_dtor_base() noexcept : engaged_(false), dummy_{{}} {}
>+
>+  template <typename... Args>
>+  constexpr explicit optional_data_dtor_base(in_place_t, Args&&... args)
>+      : engaged_(true), data_(absl::forward<Args>(args)...) {}
>+};
>+
>+template <typename T>
>+class optional_data_base : public optional_data_dtor_base<T> {
>+ protected:
>+  using base = optional_data_dtor_base<T>;
>+#if ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS
>+  using base::base;
>+#else
>+  optional_data_base() = default;
>+
>+  template <typename... Args>
>+  constexpr explicit optional_data_base(in_place_t t, Args&&... args)
>+      : base(t, absl::forward<Args>(args)...) {}
>+#endif
>+
>+  template <typename... Args>
>+  void construct(Args&&... args) {
>+    // Use dummy_'s address to work around casting cv-qualified T* to void*.
>+    ::new (static_cast<void*>(&this->dummy_)) T(std::forward<Args>(args)...);
>+    this->engaged_ = true;
>+  }
>+
>+  template <typename U>
>+  void assign(U&& u) {
>+    if (this->engaged_) {
>+      this->data_ = std::forward<U>(u);
>+    } else {
>+      construct(std::forward<U>(u));
>+    }
>+  }
>+};
>+
>+// TODO(absl-team): Add another class using
>+// std::is_trivially_move_constructible trait when available to match
>+// http://cplusplus.github.io/LWG/lwg-defects.html#2900, for types that
>+// have trivial move but nontrivial copy.
>+// Also, we should be checking is_trivially_copyable here, which is not
>+// supported now, so we use is_trivially_* traits instead.
>+template <typename T, bool = absl::is_trivially_copy_constructible<T>::value&&
>+                          absl::is_trivially_copy_assignable<
>+                              typename std::remove_cv<T>::type>::value&&
>+                              std::is_trivially_destructible<T>::value>
>+class optional_data;
>+
>+// Trivially copyable types
>+template <typename T>
>+class optional_data<T, true> : public optional_data_base<T> {
>+ protected:
>+#if ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS
>+  using optional_data_base<T>::optional_data_base;
>+#else
>+  optional_data() = default;
>+
>+  template <typename... Args>
>+  constexpr explicit optional_data(in_place_t t, Args&&... args)
>+      : optional_data_base<T>(t, absl::forward<Args>(args)...) {}
>+#endif
>+};
>+
>+template <typename T>
>+class optional_data<T, false> : public optional_data_base<T> {
>+ protected:
>+#if ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS
>+  using optional_data_base<T>::optional_data_base;
>+#else
>+  template <typename... Args>
>+  constexpr explicit optional_data(in_place_t t, Args&&... args)
>+      : optional_data_base<T>(t, absl::forward<Args>(args)...) {}
>+#endif
>+
>+  optional_data() = default;
>+
>+  optional_data(const optional_data& rhs) {
>+    if (rhs.engaged_) {
>+      this->construct(rhs.data_);
>+    }
>+  }
>+
>+  optional_data(optional_data&& rhs) noexcept(
>+      absl::default_allocator_is_nothrow::value ||
>+      std::is_nothrow_move_constructible<T>::value) {
>+    if (rhs.engaged_) {
>+      this->construct(std::move(rhs.data_));
>+    }
>+  }
>+
>+  optional_data& operator=(const optional_data& rhs) {
>+    if (rhs.engaged_) {
>+      this->assign(rhs.data_);
>+    } else {
>+      this->destruct();
>+    }
>+    return *this;
>+  }
>+
>+  optional_data& operator=(optional_data&& rhs) noexcept(
>+      std::is_nothrow_move_assignable<T>::value&&
>+          std::is_nothrow_move_constructible<T>::value) {
>+    if (rhs.engaged_) {
>+      this->assign(std::move(rhs.data_));
>+    } else {
>+      this->destruct();
>+    }
>+    return *this;
>+  }
>+};
>+
>+// Ordered by level of restriction, from low to high.
>+// Copyable implies movable.
>+enum class copy_traits { copyable = 0, movable = 1, non_movable = 2 };
>+
>+// Base class for enabling/disabling copy/move constructor.
>+template <copy_traits>
>+class optional_ctor_base;
>+
>+template <>
>+class optional_ctor_base<copy_traits::copyable> {
>+ public:
>+  constexpr optional_ctor_base() = default;
>+  optional_ctor_base(const optional_ctor_base&) = default;
>+  optional_ctor_base(optional_ctor_base&&) = default;
>+  optional_ctor_base& operator=(const optional_ctor_base&) = default;
>+  optional_ctor_base& operator=(optional_ctor_base&&) = default;
>+};
>+
>+template <>
>+class optional_ctor_base<copy_traits::movable> {
>+ public:
>+  constexpr optional_ctor_base() = default;
>+  optional_ctor_base(const optional_ctor_base&) = delete;
>+  optional_ctor_base(optional_ctor_base&&) = default;
>+  optional_ctor_base& operator=(const optional_ctor_base&) = default;
>+  optional_ctor_base& operator=(optional_ctor_base&&) = default;
>+};
>+
>+template <>
>+class optional_ctor_base<copy_traits::non_movable> {
>+ public:
>+  constexpr optional_ctor_base() = default;
>+  optional_ctor_base(const optional_ctor_base&) = delete;
>+  optional_ctor_base(optional_ctor_base&&) = delete;
>+  optional_ctor_base& operator=(const optional_ctor_base&) = default;
>+  optional_ctor_base& operator=(optional_ctor_base&&) = default;
>+};
>+
>+// Base class for enabling/disabling copy/move assignment.
>+template <copy_traits>
>+class optional_assign_base;
>+
>+template <>
>+class optional_assign_base<copy_traits::copyable> {
>+ public:
>+  constexpr optional_assign_base() = default;
>+  optional_assign_base(const optional_assign_base&) = default;
>+  optional_assign_base(optional_assign_base&&) = default;
>+  optional_assign_base& operator=(const optional_assign_base&) = default;
>+  optional_assign_base& operator=(optional_assign_base&&) = default;
>+};
>+
>+template <>
>+class optional_assign_base<copy_traits::movable> {
>+ public:
>+  constexpr optional_assign_base() = default;
>+  optional_assign_base(const optional_assign_base&) = default;
>+  optional_assign_base(optional_assign_base&&) = default;
>+  optional_assign_base& operator=(const optional_assign_base&) = delete;
>+  optional_assign_base& operator=(optional_assign_base&&) = default;
>+};
>+
>+template <>
>+class optional_assign_base<copy_traits::non_movable> {
>+ public:
>+  constexpr optional_assign_base() = default;
>+  optional_assign_base(const optional_assign_base&) = default;
>+  optional_assign_base(optional_assign_base&&) = default;
>+  optional_assign_base& operator=(const optional_assign_base&) = delete;
>+  optional_assign_base& operator=(optional_assign_base&&) = delete;
>+};
>+
>+template <typename T>
>+constexpr copy_traits get_ctor_copy_traits() {
>+  return std::is_copy_constructible<T>::value
>+             ? copy_traits::copyable
>+             : std::is_move_constructible<T>::value ? copy_traits::movable
>+                                                    : copy_traits::non_movable;
>+}
>+
>+template <typename T>
>+constexpr copy_traits get_assign_copy_traits() {
>+  return std::is_copy_assignable<T>::value &&
>+                 std::is_copy_constructible<T>::value
>+             ? copy_traits::copyable
>+             : std::is_move_assignable<T>::value &&
>+                       std::is_move_constructible<T>::value
>+                   ? copy_traits::movable
>+                   : copy_traits::non_movable;
>+}
>+
>+// Whether T is constructible or convertible from optional<U>.
>+template <typename T, typename U>
>+struct is_constructible_convertible_from_optional
>+    : std::integral_constant<
>+          bool, std::is_constructible<T, optional<U>&>::value ||
>+                    std::is_constructible<T, optional<U>&&>::value ||
>+                    std::is_constructible<T, const optional<U>&>::value ||
>+                    std::is_constructible<T, const optional<U>&&>::value ||
>+                    std::is_convertible<optional<U>&, T>::value ||
>+                    std::is_convertible<optional<U>&&, T>::value ||
>+                    std::is_convertible<const optional<U>&, T>::value ||
>+                    std::is_convertible<const optional<U>&&, T>::value> {};
>+
>+// Whether T is constructible or convertible or assignable from optional<U>.
>+template <typename T, typename U>
>+struct is_constructible_convertible_assignable_from_optional
>+    : std::integral_constant<
>+          bool, is_constructible_convertible_from_optional<T, U>::value ||
>+                    std::is_assignable<T&, optional<U>&>::value ||
>+                    std::is_assignable<T&, optional<U>&&>::value ||
>+                    std::is_assignable<T&, const optional<U>&>::value ||
>+                    std::is_assignable<T&, const optional<U>&&>::value> {};
>+
>+// Helper function used by [optional.relops], [optional.comp_with_t],
>+// for checking whether an expression is convertible to bool.
>+bool convertible_to_bool(bool);
>+
>+// Base class for std::hash<absl::optional<T>>:
>+// If std::hash<std::remove_const_t<T>> is enabled, it provides operator() to
>+// compute the hash; Otherwise, it is disabled.
>+// Reference N4659 23.14.15 [unord.hash].
>+template <typename T, typename = size_t>
>+struct optional_hash_base {
>+  optional_hash_base() = delete;
>+  optional_hash_base(const optional_hash_base&) = delete;
>+  optional_hash_base(optional_hash_base&&) = delete;
>+  optional_hash_base& operator=(const optional_hash_base&) = delete;
>+  optional_hash_base& operator=(optional_hash_base&&) = delete;
>+};
>+
>+template <typename T>
>+struct optional_hash_base<T, decltype(std::hash<absl::remove_const_t<T> >()(
>+                                 std::declval<absl::remove_const_t<T> >()))> {
>+  using argument_type = absl::optional<T>;
>+  using result_type = size_t;
>+  size_t operator()(const absl::optional<T>& opt) const {
>+    if (opt) {
>+      return std::hash<absl::remove_const_t<T> >()(*opt);
>+    } else {
>+      return static_cast<size_t>(0x297814aaad196e6dULL);
>+    }
>+  }
>+};
>+
>+}  // namespace optional_internal
>+
>+// -----------------------------------------------------------------------------
>+// absl::optional class definition
>+// -----------------------------------------------------------------------------
>+
>+template <typename T>
>+class optional : private optional_internal::optional_data<T>,
>+                 private optional_internal::optional_ctor_base<
>+                     optional_internal::get_ctor_copy_traits<T>()>,
>+                 private optional_internal::optional_assign_base<
>+                     optional_internal::get_assign_copy_traits<T>()> {
>+  using data_base = optional_internal::optional_data<T>;
>+
>+ public:
>+  typedef T value_type;
>+
>+  // Constructors
>+
>+  // Constructs an `optional` holding an empty value, NOT a default constructed
>+  // `T`.
>+  constexpr optional() noexcept {}
>+
>+  // Constructs an `optional` initialized with `nullopt` to hold an empty value.
>+  constexpr optional(nullopt_t) noexcept {}  // NOLINT(runtime/explicit)
>+
>+  // Copy constructor, standard semantics
>+  optional(const optional& src) = default;
>+
>+  // Move constructor, standard semantics
>+  optional(optional&& src) = default;
>+
>+  // Constructs a non-empty `optional` direct-initialized value of type `T` from
>+  // the arguments `std::forward<Args>(args)...`  within the `optional`.
>+  // (The `in_place_t` is a tag used to indicate that the contained object
>+  // should be constructed in-place.)
>+  //
>+  // TODO(absl-team): Add std::is_constructible<T, Args&&...> SFINAE.
>+  template <typename... Args>
>+  constexpr explicit optional(in_place_t, Args&&... args)
>+      : data_base(in_place_t(), absl::forward<Args>(args)...) {}
>+
>+  // Constructs a non-empty `optional` direct-initialized value of type `T` from
>+  // the arguments of an initializer_list and `std::forward<Args>(args)...`.
>+  // (The `in_place_t` is a tag used to indicate that the contained object
>+  // should be constructed in-place.)
>+  template <typename U, typename... Args,
>+            typename = typename std::enable_if<std::is_constructible<
>+                T, std::initializer_list<U>&, Args&&...>::value>::type>
>+  constexpr explicit optional(in_place_t, std::initializer_list<U> il,
>+                              Args&&... args)
>+      : data_base(in_place_t(), il, absl::forward<Args>(args)...) {
>+  }
>+
>+  // Value constructor (implicit)
>+  template <
>+      typename U = T,
>+      typename std::enable_if<
>+          absl::conjunction<absl::negation<std::is_same<
>+                                in_place_t, typename std::decay<U>::type> >,
>+                            absl::negation<std::is_same<
>+                                optional<T>, typename std::decay<U>::type> >,
>+                            std::is_convertible<U&&, T>,
>+                            std::is_constructible<T, U&&> >::value,
>+          bool>::type = false>
>+  constexpr optional(U&& v) : data_base(in_place_t(), absl::forward<U>(v)) {}
>+
>+  // Value constructor (explicit)
>+  template <
>+      typename U = T,
>+      typename std::enable_if<
>+          absl::conjunction<absl::negation<std::is_same<
>+                                in_place_t, typename std::decay<U>::type>>,
>+                            absl::negation<std::is_same<
>+                                optional<T>, typename std::decay<U>::type>>,
>+                            absl::negation<std::is_convertible<U&&, T>>,
>+                            std::is_constructible<T, U&&>>::value,
>+          bool>::type = false>
>+  explicit constexpr optional(U&& v)
>+      : data_base(in_place_t(), absl::forward<U>(v)) {}
>+
>+  // Converting copy constructor (implicit)
>+  template <typename U,
>+            typename std::enable_if<
>+                absl::conjunction<
>+                    absl::negation<std::is_same<T, U> >,
>+                    std::is_constructible<T, const U&>,
>+                    absl::negation<
>+                        optional_internal::
>+                            is_constructible_convertible_from_optional<T, U> >,
>+                    std::is_convertible<const U&, T> >::value,
>+                bool>::type = false>
>+  optional(const optional<U>& rhs) {
>+    if (rhs) {
>+      this->construct(*rhs);
>+    }
>+  }
>+
>+  // Converting copy constructor (explicit)
>+  template <typename U,
>+            typename std::enable_if<
>+                absl::conjunction<
>+                    absl::negation<std::is_same<T, U>>,
>+                    std::is_constructible<T, const U&>,
>+                    absl::negation<
>+                        optional_internal::
>+                            is_constructible_convertible_from_optional<T, U>>,
>+                    absl::negation<std::is_convertible<const U&, T>>>::value,
>+                bool>::type = false>
>+  explicit optional(const optional<U>& rhs) {
>+    if (rhs) {
>+      this->construct(*rhs);
>+    }
>+  }
>+
>+  // Converting move constructor (implicit)
>+  template <typename U,
>+            typename std::enable_if<
>+                absl::conjunction<
>+                    absl::negation<std::is_same<T, U> >,
>+                    std::is_constructible<T, U&&>,
>+                    absl::negation<
>+                        optional_internal::
>+                            is_constructible_convertible_from_optional<T, U> >,
>+                    std::is_convertible<U&&, T> >::value,
>+                bool>::type = false>
>+  optional(optional<U>&& rhs) {
>+    if (rhs) {
>+      this->construct(std::move(*rhs));
>+    }
>+  }
>+
>+  // Converting move constructor (explicit)
>+  template <
>+      typename U,
>+      typename std::enable_if<
>+          absl::conjunction<
>+              absl::negation<std::is_same<T, U>>, std::is_constructible<T, U&&>,
>+              absl::negation<
>+                  optional_internal::is_constructible_convertible_from_optional<
>+                      T, U>>,
>+              absl::negation<std::is_convertible<U&&, T>>>::value,
>+          bool>::type = false>
>+  explicit optional(optional<U>&& rhs) {
>+    if (rhs) {
>+      this->construct(std::move(*rhs));
>+    }
>+  }
>+
>+  // Destructor. Trivial if `T` is trivially destructible.
>+  ~optional() = default;
>+
>+  // Assignment Operators
>+
>+  // Assignment from `nullopt`
>+  //
>+  // Example:
>+  //
>+  //   struct S { int value; };
>+  //   optional<S> opt = absl::nullopt;  // Could also use opt = { };
>+  optional& operator=(nullopt_t) noexcept {
>+    this->destruct();
>+    return *this;
>+  }
>+
>+  // Copy assignment operator, standard semantics
>+  optional& operator=(const optional& src) = default;
>+
>+  // Move assignment operator, standard semantics
>+  optional& operator=(optional&& src) = default;
>+
>+  // Value assignment operators
>+  template <
>+      typename U = T,
>+      typename = typename std::enable_if<absl::conjunction<
>+          absl::negation<
>+              std::is_same<optional<T>, typename std::decay<U>::type>>,
>+          absl::negation<
>+              absl::conjunction<std::is_scalar<T>,
>+                                std::is_same<T, typename std::decay<U>::type>>>,
>+          std::is_constructible<T, U>, std::is_assignable<T&, U>>::value>::type>
>+  optional& operator=(U&& v) {
>+    this->assign(std::forward<U>(v));
>+    return *this;
>+  }
>+
>+  template <
>+      typename U,
>+      typename = typename std::enable_if<absl::conjunction<
>+          absl::negation<std::is_same<T, U>>,
>+          std::is_constructible<T, const U&>, std::is_assignable<T&, const U&>,
>+          absl::negation<
>+              optional_internal::
>+                  is_constructible_convertible_assignable_from_optional<
>+                      T, U>>>::value>::type>
>+  optional& operator=(const optional<U>& rhs) {
>+    if (rhs) {
>+      this->assign(*rhs);
>+    } else {
>+      this->destruct();
>+    }
>+    return *this;
>+  }
>+
>+  template <typename U,
>+            typename = typename std::enable_if<absl::conjunction<
>+                absl::negation<std::is_same<T, U>>, std::is_constructible<T, U>,
>+                std::is_assignable<T&, U>,
>+                absl::negation<
>+                    optional_internal::
>+                        is_constructible_convertible_assignable_from_optional<
>+                            T, U>>>::value>::type>
>+  optional& operator=(optional<U>&& rhs) {
>+    if (rhs) {
>+      this->assign(std::move(*rhs));
>+    } else {
>+      this->destruct();
>+    }
>+    return *this;
>+  }
>+
>+  // Modifiers
>+
>+  // optional::reset()
>+  //
>+  // Destroys the inner `T` value of an `absl::optional` if one is present.
>+  void reset() noexcept { this->destruct(); }
>+
>+  // optional::emplace()
>+  //
>+  // (Re)constructs the underlying `T` in-place with the given forwarded
>+  // arguments.
>+  //
>+  // Example:
>+  //
>+  //   optional<Foo> opt;
>+  //   opt.emplace(arg1,arg2,arg3);  // Constructs Foo(arg1,arg2,arg3)
>+  //
>+  // If the optional is non-empty, and the `args` refer to subobjects of the
>+  // current object, then behaviour is undefined, because the current object
>+  // will be destructed before the new object is constructed with `args`.
>+  template <typename... Args,
>+            typename = typename std::enable_if<
>+                std::is_constructible<T, Args&&...>::value>::type>
>+  T& emplace(Args&&... args) {
>+    this->destruct();
>+    this->construct(std::forward<Args>(args)...);
>+    return reference();
>+  }
>+
>+  // Emplace reconstruction overload for an initializer list and the given
>+  // forwarded arguments.
>+  //
>+  // Example:
>+  //
>+  //   struct Foo {
>+  //     Foo(std::initializer_list<int>);
>+  //   };
>+  //
>+  //   optional<Foo> opt;
>+  //   opt.emplace({1,2,3});  // Constructs Foo({1,2,3})
>+  template <typename U, typename... Args,
>+            typename = typename std::enable_if<std::is_constructible<
>+                T, std::initializer_list<U>&, Args&&...>::value>::type>
>+  T& emplace(std::initializer_list<U> il, Args&&... args) {
>+    this->destruct();
>+    this->construct(il, std::forward<Args>(args)...);
>+    return reference();
>+  }
>+
>+  // Swaps
>+
>+  // Swap, standard semantics
>+  void swap(optional& rhs) noexcept(
>+      std::is_nothrow_move_constructible<T>::value&&
>+          std::is_trivial<T>::value) {
>+    if (*this) {
>+      if (rhs) {
>+        using std::swap;
>+        swap(**this, *rhs);
>+      } else {
>+        rhs.construct(std::move(**this));
>+        this->destruct();
>+      }
>+    } else {
>+      if (rhs) {
>+        this->construct(std::move(*rhs));
>+        rhs.destruct();
>+      } else {
>+        // No effect (swap(disengaged, disengaged)).
>+      }
>+    }
>+  }
>+
>+  // Observers
>+
>+  // optional::operator->()
>+  //
>+  // Accesses the underlying `T` value's member `m` of an `optional`. If the
>+  // `optional` is empty, behavior is undefined.
>+  //
>+  // If you need myOpt->foo in constexpr, use (*myOpt).foo instead.
>+  const T* operator->() const {
>+    assert(this->engaged_);
>+    return std::addressof(this->data_);
>+  }
>+  T* operator->() {
>+    assert(this->engaged_);
>+    return std::addressof(this->data_);
>+  }
>+
>+  // optional::operator*()
>+  //
>+  // Accesses the underlying `T` value of an `optional`. If the `optional` is
>+  // empty, behavior is undefined.
>+  constexpr const T& operator*() const & { return reference(); }
>+  T& operator*() & {
>+    assert(this->engaged_);
>+    return reference();
>+  }
>+  constexpr const T&& operator*() const && {
>+    return absl::move(reference());
>+  }
>+  T&& operator*() && {
>+    assert(this->engaged_);
>+    return std::move(reference());
>+  }
>+
>+  // optional::operator bool()
>+  //
>+  // Returns false if and only if the `optional` is empty.
>+  //
>+  //   if (opt) {
>+  //     // do something with opt.value();
>+  //   } else {
>+  //     // opt is empty.
>+  //   }
>+  //
>+  constexpr explicit operator bool() const noexcept { return this->engaged_; }
>+
>+  // optional::has_value()
>+  //
>+  // Determines whether the `optional` contains a value. Returns `false` if and
>+  // only if `*this` is empty.
>+  constexpr bool has_value() const noexcept { return this->engaged_; }
>+
>+// Suppress bogus warning on MSVC: MSVC complains call to reference() after
>+// throw_bad_optional_access() is unreachable.
>+#ifdef _MSC_VER
>+#pragma warning(push)
>+#pragma warning(disable : 4702)
>+#endif  // _MSC_VER
>+  // optional::value()
>+  //
>+  // Returns a reference to an `optional`s underlying value. The constness
>+  // and lvalue/rvalue-ness of the `optional` is preserved to the view of
>+  // the `T` sub-object. Throws `absl::bad_optional_access` when the `optional`
>+  // is empty.
>+  constexpr const T& value() const & {
>+    return static_cast<bool>(*this)
>+               ? reference()
>+               : (optional_internal::throw_bad_optional_access(), reference());
>+  }
>+  T& value() & {
>+    return static_cast<bool>(*this)
>+               ? reference()
>+               : (optional_internal::throw_bad_optional_access(), reference());
>+  }
>+  T&& value() && {  // NOLINT(build/c++11)
>+    return std::move(
>+        static_cast<bool>(*this)
>+            ? reference()
>+            : (optional_internal::throw_bad_optional_access(), reference()));
>+  }
>+  constexpr const T&& value() const && {  // NOLINT(build/c++11)
>+    return absl::move(
>+        static_cast<bool>(*this)
>+            ? reference()
>+            : (optional_internal::throw_bad_optional_access(), reference()));
>+  }
>+#ifdef _MSC_VER
>+#pragma warning(pop)
>+#endif  // _MSC_VER
>+
>+  // optional::value_or()
>+  //
>+  // Returns either the value of `T` or a passed default `v` if the `optional`
>+  // is empty.
>+  template <typename U>
>+  constexpr T value_or(U&& v) const& {
>+    static_assert(std::is_copy_constructible<value_type>::value,
>+                  "optional<T>::value_or: T must by copy constructible");
>+    static_assert(std::is_convertible<U&&, value_type>::value,
>+                  "optional<T>::value_or: U must be convertible to T");
>+    return static_cast<bool>(*this)
>+               ? **this
>+               : static_cast<T>(absl::forward<U>(v));
>+  }
>+  template <typename U>
>+  T value_or(U&& v) && {  // NOLINT(build/c++11)
>+    static_assert(std::is_move_constructible<value_type>::value,
>+                  "optional<T>::value_or: T must by copy constructible");
>+    static_assert(std::is_convertible<U&&, value_type>::value,
>+                  "optional<T>::value_or: U must be convertible to T");
>+    return static_cast<bool>(*this) ? std::move(**this)
>+                                    : static_cast<T>(std::forward<U>(v));
>+  }
>+
>+ private:
>+  // Private accessors for internal storage viewed as reference to T.
>+  constexpr const T& reference() const { return this->data_; }
>+  T& reference() { return this->data_; }
>+
>+  // T constraint checks.  You can't have an optional of nullopt_t, in_place_t
>+  // or a reference.
>+  static_assert(
>+      !std::is_same<nullopt_t, typename std::remove_cv<T>::type>::value,
>+      "optional<nullopt_t> is not allowed.");
>+  static_assert(
>+      !std::is_same<in_place_t, typename std::remove_cv<T>::type>::value,
>+      "optional<in_place_t> is not allowed.");
>+  static_assert(!std::is_reference<T>::value,
>+                "optional<reference> is not allowed.");
>+};
>+
>+// Non-member functions
>+
>+// swap()
>+//
>+// Performs a swap between two `absl::optional` objects, using standard
>+// semantics.
>+//
>+// NOTE: we assume `is_swappable()` is always `true`. A compile error will
>+// result if this is not the case.
>+template <typename T,
>+          typename std::enable_if<std::is_move_constructible<T>::value,
>+                                  bool>::type = false>
>+void swap(optional<T>& a, optional<T>& b) noexcept(noexcept(a.swap(b))) {
>+  a.swap(b);
>+}
>+
>+// make_optional()
>+//
>+// Creates a non-empty `optional<T>` where the type of `T` is deduced. An
>+// `absl::optional` can also be explicitly instantiated with
>+// `make_optional<T>(v)`.
>+//
>+// Note: `make_optional()` constructions may be declared `constexpr` for
>+// trivially copyable types `T`. Non-trivial types require copy elision
>+// support in C++17 for `make_optional` to support `constexpr` on such
>+// non-trivial types.
>+//
>+// Example:
>+//
>+//   constexpr absl::optional<int> opt = absl::make_optional(1);
>+//   static_assert(opt.value() == 1, "");
>+template <typename T>
>+constexpr optional<typename std::decay<T>::type> make_optional(T&& v) {
>+  return optional<typename std::decay<T>::type>(absl::forward<T>(v));
>+}
>+
>+template <typename T, typename... Args>
>+constexpr optional<T> make_optional(Args&&... args) {
>+  return optional<T>(in_place_t(), absl::forward<Args>(args)...);
>+}
>+
>+template <typename T, typename U, typename... Args>
>+constexpr optional<T> make_optional(std::initializer_list<U> il,
>+                                    Args&&... args) {
>+  return optional<T>(in_place_t(), il,
>+                     absl::forward<Args>(args)...);
>+}
>+
>+// Relational operators [optional.relops]
>+
>+// Empty optionals are considered equal to each other and less than non-empty
>+// optionals. Supports relations between optional<T> and optional<U>, between
>+// optional<T> and U, and between optional<T> and nullopt.
>+//
>+// Note: We're careful to support T having non-bool relationals.
>+
>+// Requires: The expression, e.g. "*x == *y" shall be well-formed and its result
>+// shall be convertible to bool.
>+// The C++17 (N4606) "Returns:" statements are translated into
>+// code in an obvious way here, and the original text retained as function docs.
>+// Returns: If bool(x) != bool(y), false; otherwise if bool(x) == false, true;
>+// otherwise *x == *y.
>+template <typename T, typename U>
>+constexpr auto operator==(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x == *y)) {
>+  return static_cast<bool>(x) != static_cast<bool>(y)
>+             ? false
>+             : static_cast<bool>(x) == false ? true
>+                                             : static_cast<bool>(*x == *y);
>+}
>+
>+// Returns: If bool(x) != bool(y), true; otherwise, if bool(x) == false, false;
>+// otherwise *x != *y.
>+template <typename T, typename U>
>+constexpr auto operator!=(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x != *y)) {
>+  return static_cast<bool>(x) != static_cast<bool>(y)
>+             ? true
>+             : static_cast<bool>(x) == false ? false
>+                                             : static_cast<bool>(*x != *y);
>+}
>+// Returns: If !y, false; otherwise, if !x, true; otherwise *x < *y.
>+template <typename T, typename U>
>+constexpr auto operator<(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x < *y)) {
>+  return !y ? false : !x ? true : static_cast<bool>(*x < *y);
>+}
>+// Returns: If !x, false; otherwise, if !y, true; otherwise *x > *y.
>+template <typename T, typename U>
>+constexpr auto operator>(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x > *y)) {
>+  return !x ? false : !y ? true : static_cast<bool>(*x > *y);
>+}
>+// Returns: If !x, true; otherwise, if !y, false; otherwise *x <= *y.
>+template <typename T, typename U>
>+constexpr auto operator<=(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x <= *y)) {
>+  return !x ? true : !y ? false : static_cast<bool>(*x <= *y);
>+}
>+// Returns: If !y, true; otherwise, if !x, false; otherwise *x >= *y.
>+template <typename T, typename U>
>+constexpr auto operator>=(const optional<T>& x, const optional<U>& y)
>+    -> decltype(optional_internal::convertible_to_bool(*x >= *y)) {
>+  return !y ? true : !x ? false : static_cast<bool>(*x >= *y);
>+}
>+
>+// Comparison with nullopt [optional.nullops]
>+// The C++17 (N4606) "Returns:" statements are used directly here.
>+template <typename T>
>+constexpr bool operator==(const optional<T>& x, nullopt_t) noexcept {
>+  return !x;
>+}
>+template <typename T>
>+constexpr bool operator==(nullopt_t, const optional<T>& x) noexcept {
>+  return !x;
>+}
>+template <typename T>
>+constexpr bool operator!=(const optional<T>& x, nullopt_t) noexcept {
>+  return static_cast<bool>(x);
>+}
>+template <typename T>
>+constexpr bool operator!=(nullopt_t, const optional<T>& x) noexcept {
>+  return static_cast<bool>(x);
>+}
>+template <typename T>
>+constexpr bool operator<(const optional<T>&, nullopt_t) noexcept {
>+  return false;
>+}
>+template <typename T>
>+constexpr bool operator<(nullopt_t, const optional<T>& x) noexcept {
>+  return static_cast<bool>(x);
>+}
>+template <typename T>
>+constexpr bool operator<=(const optional<T>& x, nullopt_t) noexcept {
>+  return !x;
>+}
>+template <typename T>
>+constexpr bool operator<=(nullopt_t, const optional<T>&) noexcept {
>+  return true;
>+}
>+template <typename T>
>+constexpr bool operator>(const optional<T>& x, nullopt_t) noexcept {
>+  return static_cast<bool>(x);
>+}
>+template <typename T>
>+constexpr bool operator>(nullopt_t, const optional<T>&) noexcept {
>+  return false;
>+}
>+template <typename T>
>+constexpr bool operator>=(const optional<T>&, nullopt_t) noexcept {
>+  return true;
>+}
>+template <typename T>
>+constexpr bool operator>=(nullopt_t, const optional<T>& x) noexcept {
>+  return !x;
>+}
>+
>+// Comparison with T [optional.comp_with_t]
>+
>+// Requires: The expression, e.g. "*x == v" shall be well-formed and its result
>+// shall be convertible to bool.
>+// The C++17 (N4606) "Equivalent to:" statements are used directly here.
>+template <typename T, typename U>
>+constexpr auto operator==(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x == v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x == v) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator==(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v == *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v == *x) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator!=(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x != v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x != v) : true;
>+}
>+template <typename T, typename U>
>+constexpr auto operator!=(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v != *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v != *x) : true;
>+}
>+template <typename T, typename U>
>+constexpr auto operator<(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x < v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x < v) : true;
>+}
>+template <typename T, typename U>
>+constexpr auto operator<(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v < *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v < *x) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator<=(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x <= v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x <= v) : true;
>+}
>+template <typename T, typename U>
>+constexpr auto operator<=(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v <= *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v <= *x) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator>(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x > v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x > v) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator>(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v > *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v > *x) : true;
>+}
>+template <typename T, typename U>
>+constexpr auto operator>=(const optional<T>& x, const U& v)
>+    -> decltype(optional_internal::convertible_to_bool(*x >= v)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(*x >= v) : false;
>+}
>+template <typename T, typename U>
>+constexpr auto operator>=(const U& v, const optional<T>& x)
>+    -> decltype(optional_internal::convertible_to_bool(v >= *x)) {
>+  return static_cast<bool>(x) ? static_cast<bool>(v >= *x) : true;
>+}
>+
>+}  // namespace absl
>+
>+namespace std {
>+
>+// std::hash specialization for absl::optional.
>+template <typename T>
>+struct hash<absl::optional<T> >
>+    : absl::optional_internal::optional_hash_base<T> {};
>+
>+}  // namespace std
>+
>+#undef ABSL_OPTIONAL_USE_INHERITING_CONSTRUCTORS
>+#undef ABSL_MSVC_CONSTEXPR_BUG_IN_UNION_LIKE_CLASS
>+
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>+
>+#endif  // ABSL_TYPES_OPTIONAL_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_exception_safety_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_exception_safety_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..d2ef04b8d1b083c755c2306855460aa8f0de81dd
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_exception_safety_test.cc
>@@ -0,0 +1,282 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/optional.h"
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_safety_testing.h"
>+
>+namespace absl {
>+
>+namespace {
>+
>+using ::testing::AssertionFailure;
>+using ::testing::AssertionResult;
>+using ::testing::AssertionSuccess;
>+using ::testing::MakeExceptionSafetyTester;
>+
>+using Thrower = testing::ThrowingValue<testing::TypeSpec::kEverythingThrows>;
>+using Optional = absl::optional<Thrower>;
>+
>+using MoveThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
>+using MoveOptional = absl::optional<MoveThrower>;
>+
>+constexpr int kInitialInteger = 5;
>+constexpr int kUpdatedInteger = 10;
>+
>+template <typename OptionalT>
>+bool ValueThrowsBadOptionalAccess(const OptionalT& optional) try {
>+  return (static_cast<void>(optional.value()), false);
>+} catch (absl::bad_optional_access) {
>+  return true;
>+}
>+
>+template <typename OptionalT>
>+AssertionResult CheckInvariants(OptionalT* optional_ptr) {
>+  // Check the current state post-throw for validity
>+  auto& optional = *optional_ptr;
>+
>+  if (optional.has_value() && ValueThrowsBadOptionalAccess(optional)) {
>+    return AssertionFailure()
>+           << "Optional with value should not throw bad_optional_access when "
>+              "accessing the value.";
>+  }
>+  if (!optional.has_value() && !ValueThrowsBadOptionalAccess(optional)) {
>+    return AssertionFailure()
>+           << "Optional without a value should throw bad_optional_access when "
>+              "accessing the value.";
>+  }
>+
>+  // Reset to a known state
>+  optional.reset();
>+
>+  // Confirm that the known post-reset state is valid
>+  if (optional.has_value()) {
>+    return AssertionFailure()
>+           << "Optional should not contain a value after being reset.";
>+  }
>+  if (!ValueThrowsBadOptionalAccess(optional)) {
>+    return AssertionFailure() << "Optional should throw bad_optional_access "
>+                                 "when accessing the value after being reset.";
>+  }
>+
>+  return AssertionSuccess();
>+}
>+
>+template <typename OptionalT>
>+AssertionResult CheckDisengaged(OptionalT* optional_ptr) {
>+  auto& optional = *optional_ptr;
>+
>+  if (optional.has_value()) {
>+    return AssertionFailure()
>+           << "Expected optional to not contain a value but a value was found.";
>+  }
>+
>+  return AssertionSuccess();
>+}
>+
>+template <typename OptionalT>
>+AssertionResult CheckEngaged(OptionalT* optional_ptr) {
>+  auto& optional = *optional_ptr;
>+
>+  if (!optional.has_value()) {
>+    return AssertionFailure()
>+           << "Expected optional to contain a value but no value was found.";
>+  }
>+
>+  return AssertionSuccess();
>+}
>+
>+TEST(OptionalExceptionSafety, ThrowingConstructors) {
>+  auto thrower_nonempty = Optional(Thrower(kInitialInteger));
>+  testing::TestThrowingCtor<Optional>(thrower_nonempty);
>+
>+  auto integer_nonempty = absl::optional<int>(kInitialInteger);
>+  testing::TestThrowingCtor<Optional>(integer_nonempty);
>+  testing::TestThrowingCtor<Optional>(std::move(integer_nonempty));  // NOLINT
>+
>+  testing::TestThrowingCtor<Optional>(kInitialInteger);
>+  using ThrowerVec = std::vector<Thrower, testing::ThrowingAllocator<Thrower>>;
>+  testing::TestThrowingCtor<absl::optional<ThrowerVec>>(
>+      absl::in_place,
>+      std::initializer_list<Thrower>{Thrower(), Thrower(), Thrower()},
>+      testing::ThrowingAllocator<Thrower>());
>+}
>+
>+TEST(OptionalExceptionSafety, NothrowConstructors) {
>+  // This constructor is marked noexcept. If it throws, the program will
>+  // terminate.
>+  testing::TestThrowingCtor<MoveOptional>(MoveOptional(kUpdatedInteger));
>+}
>+
>+TEST(OptionalExceptionSafety, Emplace) {
>+  // Test the basic guarantee plus test the result of optional::has_value()
>+  // is false in all cases
>+  auto disengaged_test = MakeExceptionSafetyTester().WithInvariants(
>+      CheckInvariants<Optional>, CheckDisengaged<Optional>);
>+  auto disengaged_test_empty = disengaged_test.WithInitialValue(Optional());
>+  auto disengaged_test_nonempty =
>+      disengaged_test.WithInitialValue(Optional(kInitialInteger));
>+
>+  auto emplace_thrower_directly = [](Optional* optional_ptr) {
>+    optional_ptr->emplace(kUpdatedInteger);
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(emplace_thrower_directly));
>+  EXPECT_TRUE(disengaged_test_nonempty.Test(emplace_thrower_directly));
>+
>+  auto emplace_thrower_copy = [](Optional* optional_ptr) {
>+    auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
>+    optional_ptr->emplace(thrower);
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(emplace_thrower_copy));
>+  EXPECT_TRUE(disengaged_test_nonempty.Test(emplace_thrower_copy));
>+}
>+
>+TEST(OptionalExceptionSafety, EverythingThrowsSwap) {
>+  // Test the basic guarantee plus test the result of optional::has_value()
>+  // remains the same
>+  auto test =
>+      MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
>+  auto disengaged_test_empty = test.WithInitialValue(Optional())
>+                                   .WithInvariants(CheckDisengaged<Optional>);
>+  auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
>+                                   .WithInvariants(CheckEngaged<Optional>);
>+
>+  auto swap_empty = [](Optional* optional_ptr) {
>+    auto empty = Optional();
>+    optional_ptr->swap(empty);
>+  };
>+  EXPECT_TRUE(engaged_test_nonempty.Test(swap_empty));
>+
>+  auto swap_nonempty = [](Optional* optional_ptr) {
>+    auto nonempty =
>+        Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
>+    optional_ptr->swap(nonempty);
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(swap_nonempty));
>+  EXPECT_TRUE(engaged_test_nonempty.Test(swap_nonempty));
>+}
>+
>+TEST(OptionalExceptionSafety, NoThrowMoveSwap) {
>+  // Tests the nothrow guarantee for optional of T with non-throwing move
>+  {
>+    auto empty = MoveOptional();
>+    auto nonempty = MoveOptional(kInitialInteger);
>+    EXPECT_TRUE(testing::TestNothrowOp([&]() { nonempty.swap(empty); }));
>+  }
>+  {
>+    auto nonempty = MoveOptional(kUpdatedInteger);
>+    auto empty = MoveOptional();
>+    EXPECT_TRUE(testing::TestNothrowOp([&]() { empty.swap(nonempty); }));
>+  }
>+  {
>+    auto nonempty_from = MoveOptional(kUpdatedInteger);
>+    auto nonempty_to = MoveOptional(kInitialInteger);
>+    EXPECT_TRUE(
>+        testing::TestNothrowOp([&]() { nonempty_to.swap(nonempty_from); }));
>+  }
>+}
>+
>+TEST(OptionalExceptionSafety, CopyAssign) {
>+  // Test the basic guarantee plus test the result of optional::has_value()
>+  // remains the same
>+  auto test =
>+      MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
>+  auto disengaged_test_empty = test.WithInitialValue(Optional())
>+                                   .WithInvariants(CheckDisengaged<Optional>);
>+  auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
>+                                   .WithInvariants(CheckEngaged<Optional>);
>+
>+  auto copyassign_nonempty = [](Optional* optional_ptr) {
>+    auto nonempty =
>+        Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
>+    *optional_ptr = nonempty;
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(copyassign_nonempty));
>+  EXPECT_TRUE(engaged_test_nonempty.Test(copyassign_nonempty));
>+
>+  auto copyassign_thrower = [](Optional* optional_ptr) {
>+    auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
>+    *optional_ptr = thrower;
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(copyassign_thrower));
>+  EXPECT_TRUE(engaged_test_nonempty.Test(copyassign_thrower));
>+}
>+
>+TEST(OptionalExceptionSafety, MoveAssign) {
>+  // Test the basic guarantee plus test the result of optional::has_value()
>+  // remains the same
>+  auto test =
>+      MakeExceptionSafetyTester().WithInvariants(CheckInvariants<Optional>);
>+  auto disengaged_test_empty = test.WithInitialValue(Optional())
>+                                   .WithInvariants(CheckDisengaged<Optional>);
>+  auto engaged_test_nonempty = test.WithInitialValue(Optional(kInitialInteger))
>+                                   .WithInvariants(CheckEngaged<Optional>);
>+
>+  auto moveassign_empty = [](Optional* optional_ptr) {
>+    auto empty = Optional();
>+    *optional_ptr = std::move(empty);
>+  };
>+  EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_empty));
>+
>+  auto moveassign_nonempty = [](Optional* optional_ptr) {
>+    auto nonempty =
>+        Optional(absl::in_place, kUpdatedInteger, testing::nothrow_ctor);
>+    *optional_ptr = std::move(nonempty);
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(moveassign_nonempty));
>+  EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_nonempty));
>+
>+  auto moveassign_thrower = [](Optional* optional_ptr) {
>+    auto thrower = Thrower(kUpdatedInteger, testing::nothrow_ctor);
>+    *optional_ptr = std::move(thrower);
>+  };
>+  EXPECT_TRUE(disengaged_test_empty.Test(moveassign_thrower));
>+  EXPECT_TRUE(engaged_test_nonempty.Test(moveassign_thrower));
>+}
>+
>+TEST(OptionalExceptionSafety, NothrowMoveAssign) {
>+  // Tests the nothrow guarantee for optional of T with non-throwing move
>+  {
>+    auto empty = MoveOptional();
>+    auto nonempty = MoveOptional(kInitialInteger);
>+    EXPECT_TRUE(testing::TestNothrowOp([&]() { nonempty = std::move(empty); }));
>+  }
>+  {
>+    auto nonempty = MoveOptional(kInitialInteger);
>+    auto empty = MoveOptional();
>+    EXPECT_TRUE(testing::TestNothrowOp([&]() { empty = std::move(nonempty); }));
>+  }
>+  {
>+    auto nonempty_from = MoveOptional(kUpdatedInteger);
>+    auto nonempty_to = MoveOptional(kInitialInteger);
>+    EXPECT_TRUE(testing::TestNothrowOp(
>+        [&]() { nonempty_to = std::move(nonempty_from); }));
>+  }
>+  {
>+    auto thrower = MoveThrower(kUpdatedInteger);
>+    auto empty = MoveOptional();
>+    EXPECT_TRUE(testing::TestNothrowOp([&]() { empty = std::move(thrower); }));
>+  }
>+  {
>+    auto thrower = MoveThrower(kUpdatedInteger);
>+    auto nonempty = MoveOptional(kInitialInteger);
>+    EXPECT_TRUE(
>+        testing::TestNothrowOp([&]() { nonempty = std::move(thrower); }));
>+  }
>+}
>+
>+}  // namespace
>+
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..179bfd66d2fee0eb9321b0559b2b9dc18910dbb3
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/optional_test.cc
>@@ -0,0 +1,1625 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/optional.h"
>+
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/raw_logging.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/strings/string_view.h"
>+
>+struct Hashable {};
>+
>+namespace std {
>+template <>
>+struct hash<Hashable> {
>+  size_t operator()(const Hashable&) { return 0; }
>+};
>+}  // namespace std
>+
>+struct NonHashable {};
>+
>+namespace {
>+
>+std::string TypeQuals(std::string&) { return "&"; }
>+std::string TypeQuals(std::string&&) { return "&&"; }
>+std::string TypeQuals(const std::string&) { return "c&"; }
>+std::string TypeQuals(const std::string&&) { return "c&&"; }
>+
>+struct StructorListener {
>+  int construct0 = 0;
>+  int construct1 = 0;
>+  int construct2 = 0;
>+  int listinit = 0;
>+  int copy = 0;
>+  int move = 0;
>+  int copy_assign = 0;
>+  int move_assign = 0;
>+  int destruct = 0;
>+  int volatile_copy = 0;
>+  int volatile_move = 0;
>+  int volatile_copy_assign = 0;
>+  int volatile_move_assign = 0;
>+};
>+
>+// Suppress MSVC warnings.
>+// 4521: multiple copy constructors specified
>+// 4522: multiple assignment operators specified
>+// We wrote multiple of them to test that the correct overloads are selected.
>+#ifdef _MSC_VER
>+#pragma warning( push )
>+#pragma warning( disable : 4521)
>+#pragma warning( disable : 4522)
>+#endif
>+struct Listenable {
>+  static StructorListener* listener;
>+
>+  Listenable() { ++listener->construct0; }
>+  explicit Listenable(int /*unused*/) { ++listener->construct1; }
>+  Listenable(int /*unused*/, int /*unused*/) { ++listener->construct2; }
>+  Listenable(std::initializer_list<int> /*unused*/) { ++listener->listinit; }
>+  Listenable(const Listenable& /*unused*/) { ++listener->copy; }
>+  Listenable(const volatile Listenable& /*unused*/) {
>+    ++listener->volatile_copy;
>+  }
>+  Listenable(volatile Listenable&& /*unused*/) { ++listener->volatile_move; }
>+  Listenable(Listenable&& /*unused*/) { ++listener->move; }
>+  Listenable& operator=(const Listenable& /*unused*/) {
>+    ++listener->copy_assign;
>+    return *this;
>+  }
>+  Listenable& operator=(Listenable&& /*unused*/) {
>+    ++listener->move_assign;
>+    return *this;
>+  }
>+  // use void return type instead of volatile T& to work around GCC warning
>+  // when the assignment's returned reference is ignored.
>+  void operator=(const volatile Listenable& /*unused*/) volatile {
>+    ++listener->volatile_copy_assign;
>+  }
>+  void operator=(volatile Listenable&& /*unused*/) volatile {
>+    ++listener->volatile_move_assign;
>+  }
>+  ~Listenable() { ++listener->destruct; }
>+};
>+#ifdef _MSC_VER
>+#pragma warning( pop )
>+#endif
>+
>+StructorListener* Listenable::listener = nullptr;
>+
>+// ABSL_HAVE_NO_CONSTEXPR_INITIALIZER_LIST is defined to 1 when the standard
>+// library implementation doesn't marked initializer_list's default constructor
>+// constexpr. The C++11 standard doesn't specify constexpr on it, but C++14
>+// added it. However, libstdc++ 4.7 marked it constexpr.
>+#if defined(_LIBCPP_VERSION) && \
>+    (_LIBCPP_STD_VER <= 11 || defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR))
>+#define ABSL_HAVE_NO_CONSTEXPR_INITIALIZER_LIST 1
>+#endif
>+
>+struct ConstexprType {
>+  enum CtorTypes {
>+    kCtorDefault,
>+    kCtorInt,
>+    kCtorInitializerList,
>+    kCtorConstChar
>+  };
>+  constexpr ConstexprType() : x(kCtorDefault) {}
>+  constexpr explicit ConstexprType(int i) : x(kCtorInt) {}
>+#ifndef ABSL_HAVE_NO_CONSTEXPR_INITIALIZER_LIST
>+  constexpr ConstexprType(std::initializer_list<int> il)
>+      : x(kCtorInitializerList) {}
>+#endif
>+  constexpr ConstexprType(const char*)  // NOLINT(runtime/explicit)
>+      : x(kCtorConstChar) {}
>+  int x;
>+};
>+
>+struct Copyable {
>+  Copyable() {}
>+  Copyable(const Copyable&) {}
>+  Copyable& operator=(const Copyable&) { return *this; }
>+};
>+
>+struct MoveableThrow {
>+  MoveableThrow() {}
>+  MoveableThrow(MoveableThrow&&) {}
>+  MoveableThrow& operator=(MoveableThrow&&) { return *this; }
>+};
>+
>+struct MoveableNoThrow {
>+  MoveableNoThrow() {}
>+  MoveableNoThrow(MoveableNoThrow&&) noexcept {}
>+  MoveableNoThrow& operator=(MoveableNoThrow&&) noexcept { return *this; }
>+};
>+
>+struct NonMovable {
>+  NonMovable() {}
>+  NonMovable(const NonMovable&) = delete;
>+  NonMovable& operator=(const NonMovable&) = delete;
>+  NonMovable(NonMovable&&) = delete;
>+  NonMovable& operator=(NonMovable&&) = delete;
>+};
>+
>+TEST(optionalTest, DefaultConstructor) {
>+  absl::optional<int> empty;
>+  EXPECT_FALSE(empty);
>+  constexpr absl::optional<int> cempty;
>+  static_assert(!cempty.has_value(), "");
>+  EXPECT_TRUE(
>+      std::is_nothrow_default_constructible<absl::optional<int>>::value);
>+}
>+
>+TEST(optionalTest, nulloptConstructor) {
>+  absl::optional<int> empty(absl::nullopt);
>+  EXPECT_FALSE(empty);
>+
>+#ifdef ABSL_HAVE_STD_OPTIONAL
>+  constexpr absl::optional<int> cempty{absl::nullopt};
>+#else
>+  // Creating a temporary absl::nullopt_t object instead of using absl::nullopt
>+  // because absl::nullopt cannot be constexpr and have external linkage at the
>+  // same time.
>+  constexpr absl::optional<int> cempty{absl::nullopt_t(absl::nullopt_t::init)};
>+#endif
>+  static_assert(!cempty.has_value(), "");
>+  EXPECT_TRUE((std::is_nothrow_constructible<absl::optional<int>,
>+                                             absl::nullopt_t>::value));
>+}
>+
>+TEST(optionalTest, CopyConstructor) {
>+  {
>+    absl::optional<int> empty, opt42 = 42;
>+    absl::optional<int> empty_copy(empty);
>+    EXPECT_FALSE(empty_copy);
>+    absl::optional<int> opt42_copy(opt42);
>+    EXPECT_TRUE(opt42_copy);
>+    EXPECT_EQ(42, *opt42_copy);
>+  }
>+  {
>+    absl::optional<const int> empty, opt42 = 42;
>+    absl::optional<const int> empty_copy(empty);
>+    EXPECT_FALSE(empty_copy);
>+    absl::optional<const int> opt42_copy(opt42);
>+    EXPECT_TRUE(opt42_copy);
>+    EXPECT_EQ(42, *opt42_copy);
>+  }
>+  {
>+    absl::optional<volatile int> empty, opt42 = 42;
>+    absl::optional<volatile int> empty_copy(empty);
>+    EXPECT_FALSE(empty_copy);
>+    absl::optional<volatile int> opt42_copy(opt42);
>+    EXPECT_TRUE(opt42_copy);
>+    EXPECT_EQ(42, *opt42_copy);
>+  }
>+  // test copyablility
>+  EXPECT_TRUE(std::is_copy_constructible<absl::optional<int>>::value);
>+  EXPECT_TRUE(std::is_copy_constructible<absl::optional<Copyable>>::value);
>+  EXPECT_FALSE(
>+      std::is_copy_constructible<absl::optional<MoveableThrow>>::value);
>+  EXPECT_FALSE(
>+      std::is_copy_constructible<absl::optional<MoveableNoThrow>>::value);
>+  EXPECT_FALSE(std::is_copy_constructible<absl::optional<NonMovable>>::value);
>+
>+  EXPECT_FALSE(
>+      absl::is_trivially_copy_constructible<absl::optional<Copyable>>::value);
>+#if defined(ABSL_HAVE_STD_OPTIONAL) && defined(__GLIBCXX__)
>+  // libstdc++ std::optional implementation (as of 7.2) has a bug: when T is
>+  // trivially copyable, optional<T> is not trivially copyable (due to one of
>+  // its base class is unconditionally nontrivial).
>+#define ABSL_GLIBCXX_OPTIONAL_TRIVIALITY_BUG 1
>+#endif
>+#ifndef ABSL_GLIBCXX_OPTIONAL_TRIVIALITY_BUG
>+  EXPECT_TRUE(
>+      absl::is_trivially_copy_constructible<absl::optional<int>>::value);
>+  EXPECT_TRUE(
>+      absl::is_trivially_copy_constructible<absl::optional<const int>>::value);
>+#ifndef _MSC_VER
>+  // See defect report "Trivial copy/move constructor for class with volatile
>+  // member" at
>+  // http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#2094
>+  // A class with non-static data member of volatile-qualified type should still
>+  // have a trivial copy constructor if the data member is trivial.
>+  // Also a cv-qualified scalar type should be trivially copyable.
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<
>+              absl::optional<volatile int>>::value);
>+#endif  // _MSC_VER
>+#endif  // ABSL_GLIBCXX_OPTIONAL_TRIVIALITY_BUG
>+
>+  // constexpr copy constructor for trivially copyable types
>+  {
>+    constexpr absl::optional<int> o1;
>+    constexpr absl::optional<int> o2 = o1;
>+    static_assert(!o2, "");
>+  }
>+  {
>+    constexpr absl::optional<int> o1 = 42;
>+    constexpr absl::optional<int> o2 = o1;
>+    static_assert(o2, "");
>+    static_assert(*o2 == 42, "");
>+  }
>+  {
>+    struct TrivialCopyable {
>+      constexpr TrivialCopyable() : x(0) {}
>+      constexpr explicit TrivialCopyable(int i) : x(i) {}
>+      int x;
>+    };
>+    constexpr absl::optional<TrivialCopyable> o1(42);
>+    constexpr absl::optional<TrivialCopyable> o2 = o1;
>+    static_assert(o2, "");
>+    static_assert((*o2).x == 42, "");
>+#ifndef ABSL_GLIBCXX_OPTIONAL_TRIVIALITY_BUG
>+    EXPECT_TRUE(absl::is_trivially_copy_constructible<
>+                absl::optional<TrivialCopyable>>::value);
>+    EXPECT_TRUE(absl::is_trivially_copy_constructible<
>+                absl::optional<const TrivialCopyable>>::value);
>+#endif
>+    // When testing with VS 2017 15.3, there seems to be a bug in MSVC
>+    // std::optional when T is volatile-qualified. So skipping this test.
>+    // Bug report:
>+    // https://connect.microsoft.com/VisualStudio/feedback/details/3142534
>+#if defined(ABSL_HAVE_STD_OPTIONAL) && defined(_MSC_VER) && _MSC_VER >= 1911
>+#define ABSL_MSVC_OPTIONAL_VOLATILE_COPY_BUG 1
>+#endif
>+#ifndef ABSL_MSVC_OPTIONAL_VOLATILE_COPY_BUG
>+    EXPECT_FALSE(std::is_copy_constructible<
>+                 absl::optional<volatile TrivialCopyable>>::value);
>+#endif
>+  }
>+}
>+
>+TEST(optionalTest, MoveConstructor) {
>+  absl::optional<int> empty, opt42 = 42;
>+  absl::optional<int> empty_move(std::move(empty));
>+  EXPECT_FALSE(empty_move);
>+  absl::optional<int> opt42_move(std::move(opt42));
>+  EXPECT_TRUE(opt42_move);
>+  EXPECT_EQ(42, opt42_move);
>+  // test movability
>+  EXPECT_TRUE(std::is_move_constructible<absl::optional<int>>::value);
>+  EXPECT_TRUE(std::is_move_constructible<absl::optional<Copyable>>::value);
>+  EXPECT_TRUE(std::is_move_constructible<absl::optional<MoveableThrow>>::value);
>+  EXPECT_TRUE(
>+      std::is_move_constructible<absl::optional<MoveableNoThrow>>::value);
>+  EXPECT_FALSE(std::is_move_constructible<absl::optional<NonMovable>>::value);
>+  // test noexcept
>+  EXPECT_TRUE(std::is_nothrow_move_constructible<absl::optional<int>>::value);
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+  EXPECT_EQ(
>+      absl::default_allocator_is_nothrow::value,
>+      std::is_nothrow_move_constructible<absl::optional<MoveableThrow>>::value);
>+#endif
>+  EXPECT_TRUE(std::is_nothrow_move_constructible<
>+              absl::optional<MoveableNoThrow>>::value);
>+}
>+
>+TEST(optionalTest, Destructor) {
>+  struct Trivial {};
>+
>+  struct NonTrivial {
>+    NonTrivial(const NonTrivial&) {}
>+    NonTrivial& operator=(const NonTrivial&) { return *this; }
>+    ~NonTrivial() {}
>+  };
>+
>+  EXPECT_TRUE(std::is_trivially_destructible<absl::optional<int>>::value);
>+  EXPECT_TRUE(std::is_trivially_destructible<absl::optional<Trivial>>::value);
>+  EXPECT_FALSE(
>+      std::is_trivially_destructible<absl::optional<NonTrivial>>::value);
>+}
>+
>+TEST(optionalTest, InPlaceConstructor) {
>+  constexpr absl::optional<ConstexprType> opt0{absl::in_place_t()};
>+  static_assert(opt0, "");
>+  static_assert((*opt0).x == ConstexprType::kCtorDefault, "");
>+  constexpr absl::optional<ConstexprType> opt1{absl::in_place_t(), 1};
>+  static_assert(opt1, "");
>+  static_assert((*opt1).x == ConstexprType::kCtorInt, "");
>+#ifndef ABSL_HAVE_NO_CONSTEXPR_INITIALIZER_LIST
>+  constexpr absl::optional<ConstexprType> opt2{absl::in_place_t(), {1, 2}};
>+  static_assert(opt2, "");
>+  static_assert((*opt2).x == ConstexprType::kCtorInitializerList, "");
>+#endif
>+
>+  // TODO(absl-team): uncomment these when std::is_constructible<T, Args&&...>
>+  // SFINAE is added to optional::optional(absl::in_place_t, Args&&...).
>+  // struct I {
>+  //   I(absl::in_place_t);
>+  // };
>+
>+  // EXPECT_FALSE((std::is_constructible<absl::optional<I>,
>+  // absl::in_place_t>::value));
>+  // EXPECT_FALSE((std::is_constructible<absl::optional<I>, const
>+  // absl::in_place_t&>::value));
>+}
>+
>+// template<U=T> optional(U&&);
>+TEST(optionalTest, ValueConstructor) {
>+  constexpr absl::optional<int> opt0(0);
>+  static_assert(opt0, "");
>+  static_assert(*opt0 == 0, "");
>+  EXPECT_TRUE((std::is_convertible<int, absl::optional<int>>::value));
>+  // Copy initialization ( = "abc") won't work due to optional(optional&&)
>+  // is not constexpr. Use list initialization instead. This invokes
>+  // absl::optional<ConstexprType>::absl::optional<U>(U&&), with U = const char
>+  // (&) [4], which direct-initializes the ConstexprType value held by the
>+  // optional via ConstexprType::ConstexprType(const char*).
>+  constexpr absl::optional<ConstexprType> opt1 = {"abc"};
>+  static_assert(opt1, "");
>+  static_assert(ConstexprType::kCtorConstChar == (*opt1).x, "");
>+  EXPECT_TRUE(
>+      (std::is_convertible<const char*, absl::optional<ConstexprType>>::value));
>+  // direct initialization
>+  constexpr absl::optional<ConstexprType> opt2{2};
>+  static_assert(opt2, "");
>+  static_assert(ConstexprType::kCtorInt == (*opt2).x, "");
>+  EXPECT_FALSE(
>+      (std::is_convertible<int, absl::optional<ConstexprType>>::value));
>+
>+  // this invokes absl::optional<int>::optional(int&&)
>+  // NOTE: this has different behavior than assignment, e.g.
>+  // "opt3 = {};" clears the optional rather than setting the value to 0
>+  // According to C++17 standard N4659 [over.ics.list] 16.3.3.1.5, (9.2)- "if
>+  // the initializer list has no elements, the implicit conversion is the
>+  // identity conversion", so `optional(int&&)` should be a better match than
>+  // `optional(optional&&)` which is a user-defined conversion.
>+  // Note: GCC 7 has a bug with this overload selection when compiled with
>+  // `-std=c++17`.
>+#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ == 7 && \
>+    __cplusplus == 201703L
>+#define ABSL_GCC7_OVER_ICS_LIST_BUG 1
>+#endif
>+#ifndef ABSL_GCC7_OVER_ICS_LIST_BUG
>+  constexpr absl::optional<int> opt3({});
>+  static_assert(opt3, "");
>+  static_assert(*opt3 == 0, "");
>+#endif
>+
>+  // this invokes the move constructor with a default constructed optional
>+  // because non-template function is a better match than template function.
>+  absl::optional<ConstexprType> opt4({});
>+  EXPECT_FALSE(opt4);
>+}
>+
>+struct Implicit {};
>+
>+struct Explicit {};
>+
>+struct Convert {
>+  Convert(const Implicit&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(false) {}
>+  Convert(Implicit&&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(true) {}
>+  explicit Convert(const Explicit&) : implicit(false), move(false) {}
>+  explicit Convert(Explicit&&) : implicit(false), move(true) {}
>+
>+  bool implicit;
>+  bool move;
>+};
>+
>+struct ConvertFromOptional {
>+  ConvertFromOptional(const Implicit&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(false), from_optional(false) {}
>+  ConvertFromOptional(Implicit&&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(true), from_optional(false) {}
>+  ConvertFromOptional(
>+      const absl::optional<Implicit>&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(false), from_optional(true) {}
>+  ConvertFromOptional(absl::optional<Implicit>&&)  // NOLINT(runtime/explicit)
>+      : implicit(true), move(true), from_optional(true) {}
>+  explicit ConvertFromOptional(const Explicit&)
>+      : implicit(false), move(false), from_optional(false) {}
>+  explicit ConvertFromOptional(Explicit&&)
>+      : implicit(false), move(true), from_optional(false) {}
>+  explicit ConvertFromOptional(const absl::optional<Explicit>&)
>+      : implicit(false), move(false), from_optional(true) {}
>+  explicit ConvertFromOptional(absl::optional<Explicit>&&)
>+      : implicit(false), move(true), from_optional(true) {}
>+
>+  bool implicit;
>+  bool move;
>+  bool from_optional;
>+};
>+
>+TEST(optionalTest, ConvertingConstructor) {
>+  absl::optional<Implicit> i_empty;
>+  absl::optional<Implicit> i(absl::in_place);
>+  absl::optional<Explicit> e_empty;
>+  absl::optional<Explicit> e(absl::in_place);
>+  {
>+    // implicitly constructing absl::optional<Convert> from
>+    // absl::optional<Implicit>
>+    absl::optional<Convert> empty = i_empty;
>+    EXPECT_FALSE(empty);
>+    absl::optional<Convert> opt_copy = i;
>+    EXPECT_TRUE(opt_copy);
>+    EXPECT_TRUE(opt_copy->implicit);
>+    EXPECT_FALSE(opt_copy->move);
>+    absl::optional<Convert> opt_move = absl::optional<Implicit>(absl::in_place);
>+    EXPECT_TRUE(opt_move);
>+    EXPECT_TRUE(opt_move->implicit);
>+    EXPECT_TRUE(opt_move->move);
>+  }
>+  {
>+    // explicitly constructing absl::optional<Convert> from
>+    // absl::optional<Explicit>
>+    absl::optional<Convert> empty(e_empty);
>+    EXPECT_FALSE(empty);
>+    absl::optional<Convert> opt_copy(e);
>+    EXPECT_TRUE(opt_copy);
>+    EXPECT_FALSE(opt_copy->implicit);
>+    EXPECT_FALSE(opt_copy->move);
>+    EXPECT_FALSE((std::is_convertible<const absl::optional<Explicit>&,
>+                                      absl::optional<Convert>>::value));
>+    absl::optional<Convert> opt_move{absl::optional<Explicit>(absl::in_place)};
>+    EXPECT_TRUE(opt_move);
>+    EXPECT_FALSE(opt_move->implicit);
>+    EXPECT_TRUE(opt_move->move);
>+    EXPECT_FALSE((std::is_convertible<absl::optional<Explicit>&&,
>+                                      absl::optional<Convert>>::value));
>+  }
>+  {
>+    // implicitly constructing absl::optional<ConvertFromOptional> from
>+    // absl::optional<Implicit> via
>+    // ConvertFromOptional(absl::optional<Implicit>&&) check that
>+    // ConvertFromOptional(Implicit&&) is NOT called
>+    static_assert(
>+        std::is_convertible<absl::optional<Implicit>,
>+                            absl::optional<ConvertFromOptional>>::value,
>+        "");
>+    absl::optional<ConvertFromOptional> opt0 = i_empty;
>+    EXPECT_TRUE(opt0);
>+    EXPECT_TRUE(opt0->implicit);
>+    EXPECT_FALSE(opt0->move);
>+    EXPECT_TRUE(opt0->from_optional);
>+    absl::optional<ConvertFromOptional> opt1 = absl::optional<Implicit>();
>+    EXPECT_TRUE(opt1);
>+    EXPECT_TRUE(opt1->implicit);
>+    EXPECT_TRUE(opt1->move);
>+    EXPECT_TRUE(opt1->from_optional);
>+  }
>+  {
>+    // implicitly constructing absl::optional<ConvertFromOptional> from
>+    // absl::optional<Explicit> via
>+    // ConvertFromOptional(absl::optional<Explicit>&&) check that
>+    // ConvertFromOptional(Explicit&&) is NOT called
>+    absl::optional<ConvertFromOptional> opt0(e_empty);
>+    EXPECT_TRUE(opt0);
>+    EXPECT_FALSE(opt0->implicit);
>+    EXPECT_FALSE(opt0->move);
>+    EXPECT_TRUE(opt0->from_optional);
>+    EXPECT_FALSE(
>+        (std::is_convertible<const absl::optional<Explicit>&,
>+                             absl::optional<ConvertFromOptional>>::value));
>+    absl::optional<ConvertFromOptional> opt1{absl::optional<Explicit>()};
>+    EXPECT_TRUE(opt1);
>+    EXPECT_FALSE(opt1->implicit);
>+    EXPECT_TRUE(opt1->move);
>+    EXPECT_TRUE(opt1->from_optional);
>+    EXPECT_FALSE(
>+        (std::is_convertible<absl::optional<Explicit>&&,
>+                             absl::optional<ConvertFromOptional>>::value));
>+  }
>+}
>+
>+TEST(optionalTest, StructorBasic) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  {
>+    absl::optional<Listenable> empty;
>+    EXPECT_FALSE(empty);
>+    absl::optional<Listenable> opt0(absl::in_place);
>+    EXPECT_TRUE(opt0);
>+    absl::optional<Listenable> opt1(absl::in_place, 1);
>+    EXPECT_TRUE(opt1);
>+    absl::optional<Listenable> opt2(absl::in_place, 1, 2);
>+    EXPECT_TRUE(opt2);
>+  }
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.construct1);
>+  EXPECT_EQ(1, listener.construct2);
>+  EXPECT_EQ(3, listener.destruct);
>+}
>+
>+TEST(optionalTest, CopyMoveStructor) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> original(absl::in_place);
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(0, listener.copy);
>+  EXPECT_EQ(0, listener.move);
>+  absl::optional<Listenable> copy(original);
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.copy);
>+  EXPECT_EQ(0, listener.move);
>+  absl::optional<Listenable> move(std::move(original));
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.copy);
>+  EXPECT_EQ(1, listener.move);
>+}
>+
>+TEST(optionalTest, ListInit) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> listinit1(absl::in_place, {1});
>+  absl::optional<Listenable> listinit2(absl::in_place, {1, 2});
>+  EXPECT_EQ(2, listener.listinit);
>+}
>+
>+TEST(optionalTest, AssignFromNullopt) {
>+  absl::optional<int> opt(1);
>+  opt = absl::nullopt;
>+  EXPECT_FALSE(opt);
>+
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> opt1(absl::in_place);
>+  opt1 = absl::nullopt;
>+  EXPECT_FALSE(opt1);
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.destruct);
>+
>+  EXPECT_TRUE((
>+      std::is_nothrow_assignable<absl::optional<int>, absl::nullopt_t>::value));
>+  EXPECT_TRUE((std::is_nothrow_assignable<absl::optional<Listenable>,
>+                                          absl::nullopt_t>::value));
>+}
>+
>+TEST(optionalTest, CopyAssignment) {
>+  const absl::optional<int> empty, opt1 = 1, opt2 = 2;
>+  absl::optional<int> empty_to_opt1, opt1_to_opt2, opt2_to_empty;
>+
>+  EXPECT_FALSE(empty_to_opt1);
>+  empty_to_opt1 = empty;
>+  EXPECT_FALSE(empty_to_opt1);
>+  empty_to_opt1 = opt1;
>+  EXPECT_TRUE(empty_to_opt1);
>+  EXPECT_EQ(1, empty_to_opt1.value());
>+
>+  EXPECT_FALSE(opt1_to_opt2);
>+  opt1_to_opt2 = opt1;
>+  EXPECT_TRUE(opt1_to_opt2);
>+  EXPECT_EQ(1, opt1_to_opt2.value());
>+  opt1_to_opt2 = opt2;
>+  EXPECT_TRUE(opt1_to_opt2);
>+  EXPECT_EQ(2, opt1_to_opt2.value());
>+
>+  EXPECT_FALSE(opt2_to_empty);
>+  opt2_to_empty = opt2;
>+  EXPECT_TRUE(opt2_to_empty);
>+  EXPECT_EQ(2, opt2_to_empty.value());
>+  opt2_to_empty = empty;
>+  EXPECT_FALSE(opt2_to_empty);
>+
>+  EXPECT_FALSE(std::is_copy_assignable<absl::optional<const int>>::value);
>+  EXPECT_TRUE(std::is_copy_assignable<absl::optional<Copyable>>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<absl::optional<MoveableThrow>>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<absl::optional<MoveableNoThrow>>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<absl::optional<NonMovable>>::value);
>+
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<int>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<volatile int>::value);
>+
>+  struct Trivial {
>+    int i;
>+  };
>+  struct NonTrivial {
>+    NonTrivial& operator=(const NonTrivial&) { return *this; }
>+    int i;
>+  };
>+
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<Trivial>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<const Trivial>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<volatile Trivial>::value);
>+  EXPECT_TRUE(std::is_copy_assignable<NonTrivial>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<NonTrivial>::value);
>+
>+  // std::optional doesn't support volatile nontrivial types.
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+  {
>+    StructorListener listener;
>+    Listenable::listener = &listener;
>+
>+    absl::optional<volatile Listenable> empty, set(absl::in_place);
>+    EXPECT_EQ(1, listener.construct0);
>+    absl::optional<volatile Listenable> empty_to_empty, empty_to_set,
>+        set_to_empty(absl::in_place), set_to_set(absl::in_place);
>+    EXPECT_EQ(3, listener.construct0);
>+    empty_to_empty = empty;  // no effect
>+    empty_to_set = set;      // copy construct
>+    set_to_empty = empty;    // destruct
>+    set_to_set = set;        // copy assign
>+    EXPECT_EQ(1, listener.volatile_copy);
>+    EXPECT_EQ(0, listener.volatile_move);
>+    EXPECT_EQ(1, listener.destruct);
>+    EXPECT_EQ(1, listener.volatile_copy_assign);
>+  }
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>+}
>+
>+TEST(optionalTest, MoveAssignment) {
>+  {
>+    StructorListener listener;
>+    Listenable::listener = &listener;
>+
>+    absl::optional<Listenable> empty1, empty2, set1(absl::in_place),
>+        set2(absl::in_place);
>+    EXPECT_EQ(2, listener.construct0);
>+    absl::optional<Listenable> empty_to_empty, empty_to_set,
>+        set_to_empty(absl::in_place), set_to_set(absl::in_place);
>+    EXPECT_EQ(4, listener.construct0);
>+    empty_to_empty = std::move(empty1);
>+    empty_to_set = std::move(set1);
>+    set_to_empty = std::move(empty2);
>+    set_to_set = std::move(set2);
>+    EXPECT_EQ(0, listener.copy);
>+    EXPECT_EQ(1, listener.move);
>+    EXPECT_EQ(1, listener.destruct);
>+    EXPECT_EQ(1, listener.move_assign);
>+  }
>+  // std::optional doesn't support volatile nontrivial types.
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+  {
>+    StructorListener listener;
>+    Listenable::listener = &listener;
>+
>+    absl::optional<volatile Listenable> empty1, empty2, set1(absl::in_place),
>+        set2(absl::in_place);
>+    EXPECT_EQ(2, listener.construct0);
>+    absl::optional<volatile Listenable> empty_to_empty, empty_to_set,
>+        set_to_empty(absl::in_place), set_to_set(absl::in_place);
>+    EXPECT_EQ(4, listener.construct0);
>+    empty_to_empty = std::move(empty1);  // no effect
>+    empty_to_set = std::move(set1);      // move construct
>+    set_to_empty = std::move(empty2);    // destruct
>+    set_to_set = std::move(set2);        // move assign
>+    EXPECT_EQ(0, listener.volatile_copy);
>+    EXPECT_EQ(1, listener.volatile_move);
>+    EXPECT_EQ(1, listener.destruct);
>+    EXPECT_EQ(1, listener.volatile_move_assign);
>+  }
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>+  EXPECT_FALSE(std::is_move_assignable<absl::optional<const int>>::value);
>+  EXPECT_TRUE(std::is_move_assignable<absl::optional<Copyable>>::value);
>+  EXPECT_TRUE(std::is_move_assignable<absl::optional<MoveableThrow>>::value);
>+  EXPECT_TRUE(std::is_move_assignable<absl::optional<MoveableNoThrow>>::value);
>+  EXPECT_FALSE(std::is_move_assignable<absl::optional<NonMovable>>::value);
>+
>+  EXPECT_FALSE(
>+      std::is_nothrow_move_assignable<absl::optional<MoveableThrow>>::value);
>+  EXPECT_TRUE(
>+      std::is_nothrow_move_assignable<absl::optional<MoveableNoThrow>>::value);
>+}
>+
>+struct NoConvertToOptional {
>+  // disable implicit conversion from const NoConvertToOptional&
>+  // to absl::optional<NoConvertToOptional>.
>+  NoConvertToOptional(const NoConvertToOptional&) = delete;
>+};
>+
>+struct CopyConvert {
>+  CopyConvert(const NoConvertToOptional&);
>+  CopyConvert& operator=(const CopyConvert&) = delete;
>+  CopyConvert& operator=(const NoConvertToOptional&);
>+};
>+
>+struct CopyConvertFromOptional {
>+  CopyConvertFromOptional(const NoConvertToOptional&);
>+  CopyConvertFromOptional(const absl::optional<NoConvertToOptional>&);
>+  CopyConvertFromOptional& operator=(const CopyConvertFromOptional&) = delete;
>+  CopyConvertFromOptional& operator=(const NoConvertToOptional&);
>+  CopyConvertFromOptional& operator=(
>+      const absl::optional<NoConvertToOptional>&);
>+};
>+
>+struct MoveConvert {
>+  MoveConvert(NoConvertToOptional&&);
>+  MoveConvert& operator=(const MoveConvert&) = delete;
>+  MoveConvert& operator=(NoConvertToOptional&&);
>+};
>+
>+struct MoveConvertFromOptional {
>+  MoveConvertFromOptional(NoConvertToOptional&&);
>+  MoveConvertFromOptional(absl::optional<NoConvertToOptional>&&);
>+  MoveConvertFromOptional& operator=(const MoveConvertFromOptional&) = delete;
>+  MoveConvertFromOptional& operator=(NoConvertToOptional&&);
>+  MoveConvertFromOptional& operator=(absl::optional<NoConvertToOptional>&&);
>+};
>+
>+// template <typename U = T> absl::optional<T>& operator=(U&& v);
>+TEST(optionalTest, ValueAssignment) {
>+  absl::optional<int> opt;
>+  EXPECT_FALSE(opt);
>+  opt = 42;
>+  EXPECT_TRUE(opt);
>+  EXPECT_EQ(42, opt.value());
>+  opt = absl::nullopt;
>+  EXPECT_FALSE(opt);
>+  opt = 42;
>+  EXPECT_TRUE(opt);
>+  EXPECT_EQ(42, opt.value());
>+  opt = 43;
>+  EXPECT_TRUE(opt);
>+  EXPECT_EQ(43, opt.value());
>+  opt = {};  // this should clear optional
>+  EXPECT_FALSE(opt);
>+
>+  opt = {44};
>+  EXPECT_TRUE(opt);
>+  EXPECT_EQ(44, opt.value());
>+
>+  // U = const NoConvertToOptional&
>+  EXPECT_TRUE((std::is_assignable<absl::optional<CopyConvert>&,
>+                                  const NoConvertToOptional&>::value));
>+  // U = const absl::optional<NoConvertToOptional>&
>+  EXPECT_TRUE((std::is_assignable<absl::optional<CopyConvertFromOptional>&,
>+                                  const NoConvertToOptional&>::value));
>+  // U = const NoConvertToOptional& triggers SFINAE because
>+  // std::is_constructible_v<MoveConvert, const NoConvertToOptional&> is false
>+  EXPECT_FALSE((std::is_assignable<absl::optional<MoveConvert>&,
>+                                   const NoConvertToOptional&>::value));
>+  // U = NoConvertToOptional
>+  EXPECT_TRUE((std::is_assignable<absl::optional<MoveConvert>&,
>+                                  NoConvertToOptional&&>::value));
>+  // U = const NoConvertToOptional& triggers SFINAE because
>+  // std::is_constructible_v<MoveConvertFromOptional, const
>+  // NoConvertToOptional&> is false
>+  EXPECT_FALSE((std::is_assignable<absl::optional<MoveConvertFromOptional>&,
>+                                   const NoConvertToOptional&>::value));
>+  // U = NoConvertToOptional
>+  EXPECT_TRUE((std::is_assignable<absl::optional<MoveConvertFromOptional>&,
>+                                  NoConvertToOptional&&>::value));
>+  // U = const absl::optional<NoConvertToOptional>&
>+  EXPECT_TRUE(
>+      (std::is_assignable<absl::optional<CopyConvertFromOptional>&,
>+                          const absl::optional<NoConvertToOptional>&>::value));
>+  // U = absl::optional<NoConvertToOptional>
>+  EXPECT_TRUE(
>+      (std::is_assignable<absl::optional<MoveConvertFromOptional>&,
>+                          absl::optional<NoConvertToOptional>&&>::value));
>+}
>+
>+// template <typename U> absl::optional<T>& operator=(const absl::optional<U>&
>+// rhs); template <typename U> absl::optional<T>& operator=(absl::optional<U>&&
>+// rhs);
>+TEST(optionalTest, ConvertingAssignment) {
>+  absl::optional<int> opt_i;
>+  absl::optional<char> opt_c('c');
>+  opt_i = opt_c;
>+  EXPECT_TRUE(opt_i);
>+  EXPECT_EQ(*opt_c, *opt_i);
>+  opt_i = absl::optional<char>();
>+  EXPECT_FALSE(opt_i);
>+  opt_i = absl::optional<char>('d');
>+  EXPECT_TRUE(opt_i);
>+  EXPECT_EQ('d', *opt_i);
>+
>+  absl::optional<std::string> opt_str;
>+  absl::optional<const char*> opt_cstr("abc");
>+  opt_str = opt_cstr;
>+  EXPECT_TRUE(opt_str);
>+  EXPECT_EQ(std::string("abc"), *opt_str);
>+  opt_str = absl::optional<const char*>();
>+  EXPECT_FALSE(opt_str);
>+  opt_str = absl::optional<const char*>("def");
>+  EXPECT_TRUE(opt_str);
>+  EXPECT_EQ(std::string("def"), *opt_str);
>+
>+  // operator=(const absl::optional<U>&) with U = NoConvertToOptional
>+  EXPECT_TRUE(
>+      (std::is_assignable<absl::optional<CopyConvert>,
>+                          const absl::optional<NoConvertToOptional>&>::value));
>+  // operator=(const absl::optional<U>&) with U = NoConvertToOptional
>+  // triggers SFINAE because
>+  // std::is_constructible_v<MoveConvert, const NoConvertToOptional&> is false
>+  EXPECT_FALSE(
>+      (std::is_assignable<absl::optional<MoveConvert>&,
>+                          const absl::optional<NoConvertToOptional>&>::value));
>+  // operator=(absl::optional<U>&&) with U = NoConvertToOptional
>+  EXPECT_TRUE(
>+      (std::is_assignable<absl::optional<MoveConvert>&,
>+                          absl::optional<NoConvertToOptional>&&>::value));
>+  // operator=(const absl::optional<U>&) with U = NoConvertToOptional triggers
>+  // SFINAE because std::is_constructible_v<MoveConvertFromOptional, const
>+  // NoConvertToOptional&> is false. operator=(U&&) with U = const
>+  // absl::optional<NoConverToOptional>& triggers SFINAE because
>+  // std::is_constructible<MoveConvertFromOptional,
>+  // absl::optional<NoConvertToOptional>&&> is true.
>+  EXPECT_FALSE(
>+      (std::is_assignable<absl::optional<MoveConvertFromOptional>&,
>+                          const absl::optional<NoConvertToOptional>&>::value));
>+}
>+
>+TEST(optionalTest, ResetAndHasValue) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> opt;
>+  EXPECT_FALSE(opt);
>+  EXPECT_FALSE(opt.has_value());
>+  opt.emplace();
>+  EXPECT_TRUE(opt);
>+  EXPECT_TRUE(opt.has_value());
>+  opt.reset();
>+  EXPECT_FALSE(opt);
>+  EXPECT_FALSE(opt.has_value());
>+  EXPECT_EQ(1, listener.destruct);
>+  opt.reset();
>+  EXPECT_FALSE(opt);
>+  EXPECT_FALSE(opt.has_value());
>+
>+  constexpr absl::optional<int> empty;
>+  static_assert(!empty.has_value(), "");
>+  constexpr absl::optional<int> nonempty(1);
>+  static_assert(nonempty.has_value(), "");
>+}
>+
>+TEST(optionalTest, Emplace) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> opt;
>+  EXPECT_FALSE(opt);
>+  opt.emplace(1);
>+  EXPECT_TRUE(opt);
>+  opt.emplace(1, 2);
>+  EXPECT_EQ(1, listener.construct1);
>+  EXPECT_EQ(1, listener.construct2);
>+  EXPECT_EQ(1, listener.destruct);
>+
>+  absl::optional<std::string> o;
>+  EXPECT_TRUE((std::is_same<std::string&, decltype(o.emplace("abc"))>::value));
>+  std::string& ref = o.emplace("abc");
>+  EXPECT_EQ(&ref, &o.value());
>+}
>+
>+TEST(optionalTest, ListEmplace) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+  absl::optional<Listenable> opt;
>+  EXPECT_FALSE(opt);
>+  opt.emplace({1});
>+  EXPECT_TRUE(opt);
>+  opt.emplace({1, 2});
>+  EXPECT_EQ(2, listener.listinit);
>+  EXPECT_EQ(1, listener.destruct);
>+
>+  absl::optional<Listenable> o;
>+  EXPECT_TRUE((std::is_same<Listenable&, decltype(o.emplace({1}))>::value));
>+  Listenable& ref = o.emplace({1});
>+  EXPECT_EQ(&ref, &o.value());
>+}
>+
>+TEST(optionalTest, Swap) {
>+  absl::optional<int> opt_empty, opt1 = 1, opt2 = 2;
>+  EXPECT_FALSE(opt_empty);
>+  EXPECT_TRUE(opt1);
>+  EXPECT_EQ(1, opt1.value());
>+  EXPECT_TRUE(opt2);
>+  EXPECT_EQ(2, opt2.value());
>+  swap(opt_empty, opt1);
>+  EXPECT_FALSE(opt1);
>+  EXPECT_TRUE(opt_empty);
>+  EXPECT_EQ(1, opt_empty.value());
>+  EXPECT_TRUE(opt2);
>+  EXPECT_EQ(2, opt2.value());
>+  swap(opt_empty, opt1);
>+  EXPECT_FALSE(opt_empty);
>+  EXPECT_TRUE(opt1);
>+  EXPECT_EQ(1, opt1.value());
>+  EXPECT_TRUE(opt2);
>+  EXPECT_EQ(2, opt2.value());
>+  swap(opt1, opt2);
>+  EXPECT_FALSE(opt_empty);
>+  EXPECT_TRUE(opt1);
>+  EXPECT_EQ(2, opt1.value());
>+  EXPECT_TRUE(opt2);
>+  EXPECT_EQ(1, opt2.value());
>+
>+  EXPECT_TRUE(noexcept(opt1.swap(opt2)));
>+  EXPECT_TRUE(noexcept(swap(opt1, opt2)));
>+}
>+
>+template <int v>
>+struct DeletedOpAddr {
>+  constexpr static const int value = v;
>+  constexpr DeletedOpAddr() = default;
>+  constexpr const DeletedOpAddr<v>* operator&() const = delete;  // NOLINT
>+  DeletedOpAddr<v>* operator&() = delete;                        // NOLINT
>+};
>+
>+// The static_assert featuring a constexpr call to operator->() is commented out
>+// to document the fact that the current implementation of absl::optional<T>
>+// expects such usecases to be malformed and not compile.
>+TEST(optionalTest, OperatorAddr) {
>+  constexpr const int v = -1;
>+  {  // constexpr
>+    constexpr const absl::optional<DeletedOpAddr<v>> opt(absl::in_place_t{});
>+    static_assert(opt.has_value(), "");
>+    // static_assert(opt->value == v, "");
>+    static_assert((*opt).value == v, "");
>+  }
>+  {  // non-constexpr
>+    const absl::optional<DeletedOpAddr<v>> opt(absl::in_place_t{});
>+    EXPECT_TRUE(opt.has_value());
>+    EXPECT_TRUE(opt->value == v);
>+    EXPECT_TRUE((*opt).value == v);
>+  }
>+}
>+
>+TEST(optionalTest, PointerStuff) {
>+  absl::optional<std::string> opt(absl::in_place, "foo");
>+  EXPECT_EQ("foo", *opt);
>+  const auto& opt_const = opt;
>+  EXPECT_EQ("foo", *opt_const);
>+  EXPECT_EQ(opt->size(), 3);
>+  EXPECT_EQ(opt_const->size(), 3);
>+
>+  constexpr absl::optional<ConstexprType> opt1(1);
>+  static_assert((*opt1).x == ConstexprType::kCtorInt, "");
>+}
>+
>+// gcc has a bug pre 4.9.1 where it doesn't do correct overload resolution
>+// when overloads are const-qualified and *this is an raluve.
>+// Skip that test to make the build green again when using the old compiler.
>+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59296 is fixed in 4.9.1.
>+#if defined(__GNUC__) && !defined(__clang__)
>+#define GCC_VERSION (__GNUC__ * 10000 \
>+                     + __GNUC_MINOR__ * 100 \
>+                     + __GNUC_PATCHLEVEL__)
>+#if GCC_VERSION < 40901
>+#define ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG
>+#endif
>+#endif
>+
>+// MSVC has a bug with "cv-qualifiers in class construction", fixed in 2017. See
>+// https://docs.microsoft.com/en-us/cpp/cpp-conformance-improvements-2017#bug-fixes
>+// The compiler some incorrectly ingores the cv-qualifier when generating a
>+// class object via a constructor call. For example:
>+//
>+// class optional {
>+//   constexpr T&& value() &&;
>+//   constexpr const T&& value() const &&;
>+// }
>+//
>+// using COI = const absl::optional<int>;
>+// static_assert(2 == COI(2).value(), "");  // const &&
>+//
>+// This should invoke the "const &&" overload but since it ignores the const
>+// qualifier it finds the "&&" overload the best candidate.
>+#if defined(_MSC_VER) && _MSC_VER < 1910
>+#define ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG
>+#endif
>+
>+TEST(optionalTest, Value) {
>+  using O = absl::optional<std::string>;
>+  using CO = const absl::optional<std::string>;
>+  using OC = absl::optional<const std::string>;
>+  O lvalue(absl::in_place, "lvalue");
>+  CO clvalue(absl::in_place, "clvalue");
>+  OC lvalue_c(absl::in_place, "lvalue_c");
>+  EXPECT_EQ("lvalue", lvalue.value());
>+  EXPECT_EQ("clvalue", clvalue.value());
>+  EXPECT_EQ("lvalue_c", lvalue_c.value());
>+  EXPECT_EQ("xvalue", O(absl::in_place, "xvalue").value());
>+  EXPECT_EQ("xvalue_c", OC(absl::in_place, "xvalue_c").value());
>+#ifndef ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG
>+  EXPECT_EQ("cxvalue", CO(absl::in_place, "cxvalue").value());
>+#endif
>+  EXPECT_EQ("&", TypeQuals(lvalue.value()));
>+  EXPECT_EQ("c&", TypeQuals(clvalue.value()));
>+  EXPECT_EQ("c&", TypeQuals(lvalue_c.value()));
>+  EXPECT_EQ("&&", TypeQuals(O(absl::in_place, "xvalue").value()));
>+#if !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG) && \
>+    !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG)
>+  EXPECT_EQ("c&&", TypeQuals(CO(absl::in_place, "cxvalue").value()));
>+#endif
>+  EXPECT_EQ("c&&", TypeQuals(OC(absl::in_place, "xvalue_c").value()));
>+
>+  // test on volatile type
>+  using OV = absl::optional<volatile int>;
>+  OV lvalue_v(absl::in_place, 42);
>+  EXPECT_EQ(42, lvalue_v.value());
>+  EXPECT_EQ(42, OV(42).value());
>+  EXPECT_TRUE((std::is_same<volatile int&, decltype(lvalue_v.value())>::value));
>+  EXPECT_TRUE((std::is_same<volatile int&&, decltype(OV(42).value())>::value));
>+
>+  // test exception throw on value()
>+  absl::optional<int> empty;
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  EXPECT_THROW(empty.value(), absl::bad_optional_access);
>+#else
>+  EXPECT_DEATH(empty.value(), "Bad optional access");
>+#endif
>+
>+  // test constexpr value()
>+  constexpr absl::optional<int> o1(1);
>+  static_assert(1 == o1.value(), "");  // const &
>+#if !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG) && \
>+    !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG)
>+  using COI = const absl::optional<int>;
>+  static_assert(2 == COI(2).value(), "");  // const &&
>+#endif
>+}
>+
>+TEST(optionalTest, DerefOperator) {
>+  using O = absl::optional<std::string>;
>+  using CO = const absl::optional<std::string>;
>+  using OC = absl::optional<const std::string>;
>+  O lvalue(absl::in_place, "lvalue");
>+  CO clvalue(absl::in_place, "clvalue");
>+  OC lvalue_c(absl::in_place, "lvalue_c");
>+  EXPECT_EQ("lvalue", *lvalue);
>+  EXPECT_EQ("clvalue", *clvalue);
>+  EXPECT_EQ("lvalue_c", *lvalue_c);
>+  EXPECT_EQ("xvalue", *O(absl::in_place, "xvalue"));
>+  EXPECT_EQ("xvalue_c", *OC(absl::in_place, "xvalue_c"));
>+#ifndef ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG
>+  EXPECT_EQ("cxvalue", *CO(absl::in_place, "cxvalue"));
>+#endif
>+  EXPECT_EQ("&", TypeQuals(*lvalue));
>+  EXPECT_EQ("c&", TypeQuals(*clvalue));
>+  EXPECT_EQ("&&", TypeQuals(*O(absl::in_place, "xvalue")));
>+#if !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG) && \
>+    !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG)
>+  EXPECT_EQ("c&&", TypeQuals(*CO(absl::in_place, "cxvalue")));
>+#endif
>+  EXPECT_EQ("c&&", TypeQuals(*OC(absl::in_place, "xvalue_c")));
>+
>+  // test on volatile type
>+  using OV = absl::optional<volatile int>;
>+  OV lvalue_v(absl::in_place, 42);
>+  EXPECT_EQ(42, *lvalue_v);
>+  EXPECT_EQ(42, *OV(42));
>+  EXPECT_TRUE((std::is_same<volatile int&, decltype(*lvalue_v)>::value));
>+  EXPECT_TRUE((std::is_same<volatile int&&, decltype(*OV(42))>::value));
>+
>+  constexpr absl::optional<int> opt1(1);
>+  static_assert(*opt1 == 1, "");
>+#if !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG) && \
>+    !defined(ABSL_SKIP_OVERLOAD_TEST_DUE_TO_GCC_BUG)
>+  using COI = const absl::optional<int>;
>+  static_assert(*COI(2) == 2, "");
>+#endif
>+}
>+
>+TEST(optionalTest, ValueOr) {
>+  absl::optional<double> opt_empty, opt_set = 1.2;
>+  EXPECT_EQ(42.0, opt_empty.value_or(42));
>+  EXPECT_EQ(1.2, opt_set.value_or(42));
>+  EXPECT_EQ(42.0, absl::optional<double>().value_or(42));
>+  EXPECT_EQ(1.2, absl::optional<double>(1.2).value_or(42));
>+
>+  constexpr absl::optional<double> copt_empty, copt_set = {1.2};
>+  static_assert(42.0 == copt_empty.value_or(42), "");
>+  static_assert(1.2 == copt_set.value_or(42), "");
>+#ifndef ABSL_SKIP_OVERLOAD_TEST_DUE_TO_MSVC_BUG
>+  using COD = const absl::optional<double>;
>+  static_assert(42.0 == COD().value_or(42), "");
>+  static_assert(1.2 == COD(1.2).value_or(42), "");
>+#endif
>+}
>+
>+// make_optional cannot be constexpr until C++17
>+TEST(optionalTest, make_optional) {
>+  auto opt_int = absl::make_optional(42);
>+  EXPECT_TRUE((std::is_same<decltype(opt_int), absl::optional<int>>::value));
>+  EXPECT_EQ(42, opt_int);
>+
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+
>+  absl::optional<Listenable> opt0 = absl::make_optional<Listenable>();
>+  EXPECT_EQ(1, listener.construct0);
>+  absl::optional<Listenable> opt1 = absl::make_optional<Listenable>(1);
>+  EXPECT_EQ(1, listener.construct1);
>+  absl::optional<Listenable> opt2 = absl::make_optional<Listenable>(1, 2);
>+  EXPECT_EQ(1, listener.construct2);
>+  absl::optional<Listenable> opt3 = absl::make_optional<Listenable>({1});
>+  absl::optional<Listenable> opt4 = absl::make_optional<Listenable>({1, 2});
>+  EXPECT_EQ(2, listener.listinit);
>+
>+  // Constexpr tests on trivially copyable types
>+  // optional<T> has trivial copy/move ctors when T is trivially copyable.
>+  // For nontrivial types with constexpr constructors, we need copy elision in
>+  // C++17 for make_optional to be constexpr.
>+  {
>+    constexpr absl::optional<int> c_opt = absl::make_optional(42);
>+    static_assert(c_opt.value() == 42, "");
>+  }
>+  {
>+    struct TrivialCopyable {
>+      constexpr TrivialCopyable() : x(0) {}
>+      constexpr explicit TrivialCopyable(int i) : x(i) {}
>+      int x;
>+    };
>+
>+    constexpr TrivialCopyable v;
>+    constexpr absl::optional<TrivialCopyable> c_opt0 = absl::make_optional(v);
>+    static_assert((*c_opt0).x == 0, "");
>+    constexpr absl::optional<TrivialCopyable> c_opt1 =
>+        absl::make_optional<TrivialCopyable>();
>+    static_assert((*c_opt1).x == 0, "");
>+    constexpr absl::optional<TrivialCopyable> c_opt2 =
>+        absl::make_optional<TrivialCopyable>(42);
>+    static_assert((*c_opt2).x == 42, "");
>+  }
>+}
>+
>+template <typename T, typename U>
>+void optionalTest_Comparisons_EXPECT_LESS(T x, U y) {
>+  EXPECT_FALSE(x == y);
>+  EXPECT_TRUE(x != y);
>+  EXPECT_TRUE(x < y);
>+  EXPECT_FALSE(x > y);
>+  EXPECT_TRUE(x <= y);
>+  EXPECT_FALSE(x >= y);
>+}
>+
>+template <typename T, typename U>
>+void optionalTest_Comparisons_EXPECT_SAME(T x, U y) {
>+  EXPECT_TRUE(x == y);
>+  EXPECT_FALSE(x != y);
>+  EXPECT_FALSE(x < y);
>+  EXPECT_FALSE(x > y);
>+  EXPECT_TRUE(x <= y);
>+  EXPECT_TRUE(x >= y);
>+}
>+
>+template <typename T, typename U>
>+void optionalTest_Comparisons_EXPECT_GREATER(T x, U y) {
>+  EXPECT_FALSE(x == y);
>+  EXPECT_TRUE(x != y);
>+  EXPECT_FALSE(x < y);
>+  EXPECT_TRUE(x > y);
>+  EXPECT_FALSE(x <= y);
>+  EXPECT_TRUE(x >= y);
>+}
>+
>+
>+template <typename T, typename U, typename V>
>+void TestComparisons() {
>+  absl::optional<T> ae, a2{2}, a4{4};
>+  absl::optional<U> be, b2{2}, b4{4};
>+  V v3 = 3;
>+
>+  // LHS: absl::nullopt, ae, a2, v3, a4
>+  // RHS: absl::nullopt, be, b2, v3, b4
>+
>+  // optionalTest_Comparisons_EXPECT_NOT_TO_WORK(absl::nullopt,absl::nullopt);
>+  optionalTest_Comparisons_EXPECT_SAME(absl::nullopt, be);
>+  optionalTest_Comparisons_EXPECT_LESS(absl::nullopt, b2);
>+  // optionalTest_Comparisons_EXPECT_NOT_TO_WORK(absl::nullopt,v3);
>+  optionalTest_Comparisons_EXPECT_LESS(absl::nullopt, b4);
>+
>+  optionalTest_Comparisons_EXPECT_SAME(ae, absl::nullopt);
>+  optionalTest_Comparisons_EXPECT_SAME(ae, be);
>+  optionalTest_Comparisons_EXPECT_LESS(ae, b2);
>+  optionalTest_Comparisons_EXPECT_LESS(ae, v3);
>+  optionalTest_Comparisons_EXPECT_LESS(ae, b4);
>+
>+  optionalTest_Comparisons_EXPECT_GREATER(a2, absl::nullopt);
>+  optionalTest_Comparisons_EXPECT_GREATER(a2, be);
>+  optionalTest_Comparisons_EXPECT_SAME(a2, b2);
>+  optionalTest_Comparisons_EXPECT_LESS(a2, v3);
>+  optionalTest_Comparisons_EXPECT_LESS(a2, b4);
>+
>+  // optionalTest_Comparisons_EXPECT_NOT_TO_WORK(v3,absl::nullopt);
>+  optionalTest_Comparisons_EXPECT_GREATER(v3, be);
>+  optionalTest_Comparisons_EXPECT_GREATER(v3, b2);
>+  optionalTest_Comparisons_EXPECT_SAME(v3, v3);
>+  optionalTest_Comparisons_EXPECT_LESS(v3, b4);
>+
>+  optionalTest_Comparisons_EXPECT_GREATER(a4, absl::nullopt);
>+  optionalTest_Comparisons_EXPECT_GREATER(a4, be);
>+  optionalTest_Comparisons_EXPECT_GREATER(a4, b2);
>+  optionalTest_Comparisons_EXPECT_GREATER(a4, v3);
>+  optionalTest_Comparisons_EXPECT_SAME(a4, b4);
>+}
>+
>+struct Int1 {
>+  Int1() = default;
>+  Int1(int i) : i(i) {}  // NOLINT(runtime/explicit)
>+  int i;
>+};
>+
>+struct Int2 {
>+  Int2() = default;
>+  Int2(int i) : i(i) {}  // NOLINT(runtime/explicit)
>+  int i;
>+};
>+
>+// comparison between Int1 and Int2
>+constexpr bool operator==(const Int1& lhs, const Int2& rhs) {
>+  return lhs.i == rhs.i;
>+}
>+constexpr bool operator!=(const Int1& lhs, const Int2& rhs) {
>+  return !(lhs == rhs);
>+}
>+constexpr bool operator<(const Int1& lhs, const Int2& rhs) {
>+  return lhs.i < rhs.i;
>+}
>+constexpr bool operator<=(const Int1& lhs, const Int2& rhs) {
>+  return lhs < rhs || lhs == rhs;
>+}
>+constexpr bool operator>(const Int1& lhs, const Int2& rhs) {
>+  return !(lhs <= rhs);
>+}
>+constexpr bool operator>=(const Int1& lhs, const Int2& rhs) {
>+  return !(lhs < rhs);
>+}
>+
>+TEST(optionalTest, Comparisons) {
>+  TestComparisons<int, int, int>();
>+  TestComparisons<const int, int, int>();
>+  TestComparisons<Int1, int, int>();
>+  TestComparisons<int, Int2, int>();
>+  TestComparisons<Int1, Int2, int>();
>+
>+  // compare absl::optional<std::string> with const char*
>+  absl::optional<std::string> opt_str = "abc";
>+  const char* cstr = "abc";
>+  EXPECT_TRUE(opt_str == cstr);
>+  // compare absl::optional<std::string> with absl::optional<const char*>
>+  absl::optional<const char*> opt_cstr = cstr;
>+  EXPECT_TRUE(opt_str == opt_cstr);
>+  // compare absl::optional<std::string> with absl::optional<absl::string_view>
>+  absl::optional<absl::string_view> e1;
>+  absl::optional<std::string> e2;
>+  EXPECT_TRUE(e1 == e2);
>+}
>+
>+
>+TEST(optionalTest, SwapRegression) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+
>+  {
>+    absl::optional<Listenable> a;
>+    absl::optional<Listenable> b(absl::in_place);
>+    a.swap(b);
>+  }
>+
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.move);
>+  EXPECT_EQ(2, listener.destruct);
>+
>+  {
>+    absl::optional<Listenable> a(absl::in_place);
>+    absl::optional<Listenable> b;
>+    a.swap(b);
>+  }
>+
>+  EXPECT_EQ(2, listener.construct0);
>+  EXPECT_EQ(2, listener.move);
>+  EXPECT_EQ(4, listener.destruct);
>+}
>+
>+TEST(optionalTest, BigStringLeakCheck) {
>+  constexpr size_t n = 1 << 16;
>+
>+  using OS = absl::optional<std::string>;
>+
>+  OS a;
>+  OS b = absl::nullopt;
>+  OS c = std::string(n, 'c');
>+  std::string sd(n, 'd');
>+  OS d = sd;
>+  OS e(absl::in_place, n, 'e');
>+  OS f;
>+  f.emplace(n, 'f');
>+
>+  OS ca(a);
>+  OS cb(b);
>+  OS cc(c);
>+  OS cd(d);
>+  OS ce(e);
>+
>+  OS oa;
>+  OS ob = absl::nullopt;
>+  OS oc = std::string(n, 'c');
>+  std::string sod(n, 'd');
>+  OS od = sod;
>+  OS oe(absl::in_place, n, 'e');
>+  OS of;
>+  of.emplace(n, 'f');
>+
>+  OS ma(std::move(oa));
>+  OS mb(std::move(ob));
>+  OS mc(std::move(oc));
>+  OS md(std::move(od));
>+  OS me(std::move(oe));
>+  OS mf(std::move(of));
>+
>+  OS aa1;
>+  OS ab1 = absl::nullopt;
>+  OS ac1 = std::string(n, 'c');
>+  std::string sad1(n, 'd');
>+  OS ad1 = sad1;
>+  OS ae1(absl::in_place, n, 'e');
>+  OS af1;
>+  af1.emplace(n, 'f');
>+
>+  OS aa2;
>+  OS ab2 = absl::nullopt;
>+  OS ac2 = std::string(n, 'c');
>+  std::string sad2(n, 'd');
>+  OS ad2 = sad2;
>+  OS ae2(absl::in_place, n, 'e');
>+  OS af2;
>+  af2.emplace(n, 'f');
>+
>+  aa1 = af2;
>+  ab1 = ae2;
>+  ac1 = ad2;
>+  ad1 = ac2;
>+  ae1 = ab2;
>+  af1 = aa2;
>+
>+  OS aa3;
>+  OS ab3 = absl::nullopt;
>+  OS ac3 = std::string(n, 'c');
>+  std::string sad3(n, 'd');
>+  OS ad3 = sad3;
>+  OS ae3(absl::in_place, n, 'e');
>+  OS af3;
>+  af3.emplace(n, 'f');
>+
>+  aa3 = absl::nullopt;
>+  ab3 = absl::nullopt;
>+  ac3 = absl::nullopt;
>+  ad3 = absl::nullopt;
>+  ae3 = absl::nullopt;
>+  af3 = absl::nullopt;
>+
>+  OS aa4;
>+  OS ab4 = absl::nullopt;
>+  OS ac4 = std::string(n, 'c');
>+  std::string sad4(n, 'd');
>+  OS ad4 = sad4;
>+  OS ae4(absl::in_place, n, 'e');
>+  OS af4;
>+  af4.emplace(n, 'f');
>+
>+  aa4 = OS(absl::in_place, n, 'a');
>+  ab4 = OS(absl::in_place, n, 'b');
>+  ac4 = OS(absl::in_place, n, 'c');
>+  ad4 = OS(absl::in_place, n, 'd');
>+  ae4 = OS(absl::in_place, n, 'e');
>+  af4 = OS(absl::in_place, n, 'f');
>+
>+  OS aa5;
>+  OS ab5 = absl::nullopt;
>+  OS ac5 = std::string(n, 'c');
>+  std::string sad5(n, 'd');
>+  OS ad5 = sad5;
>+  OS ae5(absl::in_place, n, 'e');
>+  OS af5;
>+  af5.emplace(n, 'f');
>+
>+  std::string saa5(n, 'a');
>+  std::string sab5(n, 'a');
>+  std::string sac5(n, 'a');
>+  std::string sad52(n, 'a');
>+  std::string sae5(n, 'a');
>+  std::string saf5(n, 'a');
>+
>+  aa5 = saa5;
>+  ab5 = sab5;
>+  ac5 = sac5;
>+  ad5 = sad52;
>+  ae5 = sae5;
>+  af5 = saf5;
>+
>+  OS aa6;
>+  OS ab6 = absl::nullopt;
>+  OS ac6 = std::string(n, 'c');
>+  std::string sad6(n, 'd');
>+  OS ad6 = sad6;
>+  OS ae6(absl::in_place, n, 'e');
>+  OS af6;
>+  af6.emplace(n, 'f');
>+
>+  aa6 = std::string(n, 'a');
>+  ab6 = std::string(n, 'b');
>+  ac6 = std::string(n, 'c');
>+  ad6 = std::string(n, 'd');
>+  ae6 = std::string(n, 'e');
>+  af6 = std::string(n, 'f');
>+
>+  OS aa7;
>+  OS ab7 = absl::nullopt;
>+  OS ac7 = std::string(n, 'c');
>+  std::string sad7(n, 'd');
>+  OS ad7 = sad7;
>+  OS ae7(absl::in_place, n, 'e');
>+  OS af7;
>+  af7.emplace(n, 'f');
>+
>+  aa7.emplace(n, 'A');
>+  ab7.emplace(n, 'B');
>+  ac7.emplace(n, 'C');
>+  ad7.emplace(n, 'D');
>+  ae7.emplace(n, 'E');
>+  af7.emplace(n, 'F');
>+}
>+
>+TEST(optionalTest, MoveAssignRegression) {
>+  StructorListener listener;
>+  Listenable::listener = &listener;
>+
>+  {
>+    absl::optional<Listenable> a;
>+    Listenable b;
>+    a = std::move(b);
>+  }
>+
>+  EXPECT_EQ(1, listener.construct0);
>+  EXPECT_EQ(1, listener.move);
>+  EXPECT_EQ(2, listener.destruct);
>+}
>+
>+TEST(optionalTest, ValueType) {
>+  EXPECT_TRUE((std::is_same<absl::optional<int>::value_type, int>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<absl::optional<std::string>::value_type, std::string>::value));
>+  EXPECT_FALSE(
>+      (std::is_same<absl::optional<int>::value_type, absl::nullopt_t>::value));
>+}
>+
>+template <typename T>
>+struct is_hash_enabled_for {
>+  template <typename U, typename = decltype(std::hash<U>()(std::declval<U>()))>
>+  static std::true_type test(int);
>+
>+  template <typename U>
>+  static std::false_type test(...);
>+
>+  static constexpr bool value = decltype(test<T>(0))::value;
>+};
>+
>+TEST(optionalTest, Hash) {
>+  std::hash<absl::optional<int>> hash;
>+  std::set<size_t> hashcodes;
>+  hashcodes.insert(hash(absl::nullopt));
>+  for (int i = 0; i < 100; ++i) {
>+    hashcodes.insert(hash(i));
>+  }
>+  EXPECT_GT(hashcodes.size(), 90);
>+
>+  static_assert(is_hash_enabled_for<absl::optional<int>>::value, "");
>+  static_assert(is_hash_enabled_for<absl::optional<Hashable>>::value, "");
>+
>+#if defined(_MSC_VER) || (defined(_LIBCPP_VERSION) && \
>+                          _LIBCPP_VERSION < 4000 && _LIBCPP_STD_VER > 11)
>+  // For MSVC and libc++ (< 4.0 and c++14), std::hash primary template has a
>+  // static_assert to catch any user-defined type that doesn't provide a hash
>+  // specialization. So instantiating std::hash<absl::optional<T>> will result
>+  // in a hard error which is not SFINAE friendly.
>+#define ABSL_STD_HASH_NOT_SFINAE_FRIENDLY 1
>+#endif
>+
>+#ifndef ABSL_STD_HASH_NOT_SFINAE_FRIENDLY
>+  static_assert(!is_hash_enabled_for<absl::optional<NonHashable>>::value, "");
>+#endif
>+
>+  // libstdc++ std::optional is missing remove_const_t, i.e. it's using
>+  // std::hash<T> rather than std::hash<std::remove_const_t<T>>.
>+  // Reference: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82262
>+#ifndef __GLIBCXX__
>+  static_assert(is_hash_enabled_for<absl::optional<const int>>::value, "");
>+  static_assert(is_hash_enabled_for<absl::optional<const Hashable>>::value, "");
>+  std::hash<absl::optional<const int>> c_hash;
>+  for (int i = 0; i < 100; ++i) {
>+    EXPECT_EQ(hash(i), c_hash(i));
>+  }
>+#endif
>+}
>+
>+struct MoveMeNoThrow {
>+  MoveMeNoThrow() : x(0) {}
>+  [[noreturn]] MoveMeNoThrow(const MoveMeNoThrow& other) : x(other.x) {
>+    ABSL_RAW_LOG(FATAL, "Should not be called.");
>+    abort();
>+  }
>+  MoveMeNoThrow(MoveMeNoThrow&& other) noexcept : x(other.x) {}
>+  int x;
>+};
>+
>+struct MoveMeThrow {
>+  MoveMeThrow() : x(0) {}
>+  MoveMeThrow(const MoveMeThrow& other) : x(other.x) {}
>+  MoveMeThrow(MoveMeThrow&& other) : x(other.x) {}
>+  int x;
>+};
>+
>+TEST(optionalTest, NoExcept) {
>+  static_assert(
>+      std::is_nothrow_move_constructible<absl::optional<MoveMeNoThrow>>::value,
>+      "");
>+#ifndef ABSL_HAVE_STD_OPTIONAL
>+  static_assert(absl::default_allocator_is_nothrow::value ==
>+                    std::is_nothrow_move_constructible<
>+                        absl::optional<MoveMeThrow>>::value,
>+                "");
>+#endif
>+  std::vector<absl::optional<MoveMeNoThrow>> v;
>+  for (int i = 0; i < 10; ++i) v.emplace_back();
>+}
>+
>+struct AnyLike {
>+  AnyLike(AnyLike&&) = default;
>+  AnyLike(const AnyLike&) = default;
>+
>+  template <typename ValueType,
>+            typename T = typename std::decay<ValueType>::type,
>+            typename std::enable_if<
>+                !absl::disjunction<
>+                    std::is_same<AnyLike, T>,
>+                    absl::negation<std::is_copy_constructible<T>>>::value,
>+                int>::type = 0>
>+  AnyLike(ValueType&&) {}  // NOLINT(runtime/explicit)
>+
>+  AnyLike& operator=(AnyLike&&) = default;
>+  AnyLike& operator=(const AnyLike&) = default;
>+
>+  template <typename ValueType,
>+            typename T = typename std::decay<ValueType>::type>
>+  typename std::enable_if<
>+      absl::conjunction<absl::negation<std::is_same<AnyLike, T>>,
>+                        std::is_copy_constructible<T>>::value,
>+      AnyLike&>::type
>+  operator=(ValueType&& /* rhs */) {
>+    return *this;
>+  }
>+};
>+
>+TEST(optionalTest, ConstructionConstraints) {
>+  EXPECT_TRUE((std::is_constructible<AnyLike, absl::optional<AnyLike>>::value));
>+
>+  EXPECT_TRUE(
>+      (std::is_constructible<AnyLike, const absl::optional<AnyLike>&>::value));
>+
>+  EXPECT_TRUE((std::is_constructible<absl::optional<AnyLike>, AnyLike>::value));
>+  EXPECT_TRUE(
>+      (std::is_constructible<absl::optional<AnyLike>, const AnyLike&>::value));
>+
>+  EXPECT_TRUE((std::is_convertible<absl::optional<AnyLike>, AnyLike>::value));
>+
>+  EXPECT_TRUE(
>+      (std::is_convertible<const absl::optional<AnyLike>&, AnyLike>::value));
>+
>+  EXPECT_TRUE((std::is_convertible<AnyLike, absl::optional<AnyLike>>::value));
>+  EXPECT_TRUE(
>+      (std::is_convertible<const AnyLike&, absl::optional<AnyLike>>::value));
>+
>+  EXPECT_TRUE(std::is_move_constructible<absl::optional<AnyLike>>::value);
>+  EXPECT_TRUE(std::is_copy_constructible<absl::optional<AnyLike>>::value);
>+}
>+
>+TEST(optionalTest, AssignmentConstraints) {
>+  EXPECT_TRUE((std::is_assignable<AnyLike&, absl::optional<AnyLike>>::value));
>+  EXPECT_TRUE(
>+      (std::is_assignable<AnyLike&, const absl::optional<AnyLike>&>::value));
>+  EXPECT_TRUE((std::is_assignable<absl::optional<AnyLike>&, AnyLike>::value));
>+  EXPECT_TRUE(
>+      (std::is_assignable<absl::optional<AnyLike>&, const AnyLike&>::value));
>+  EXPECT_TRUE(std::is_move_assignable<absl::optional<AnyLike>>::value);
>+  EXPECT_TRUE(std::is_copy_assignable<absl::optional<AnyLike>>::value);
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..76be819ecca2186e5dd49dba0b2fd4a6d27ff9e8
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span.h
>@@ -0,0 +1,749 @@
>+//
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// span.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines a `Span<T>` type for holding a view of an existing
>+// array of data. The `Span` object, much like the `absl::string_view` object,
>+// does not own such data itself. A span provides a lightweight way to pass
>+// around view of such data.
>+//
>+// Additionally, this header file defines `MakeSpan()` and `MakeConstSpan()`
>+// factory functions, for clearly creating spans of type `Span<T>` or read-only
>+// `Span<const T>` when such types may be difficult to identify due to issues
>+// with implicit conversion.
>+//
>+// The C++ standards committee currently has a proposal for a `std::span` type,
>+// (http://wg21.link/p0122), which is not yet part of the standard (though may
>+// become part of C++20). As of August 2017, the differences between
>+// `absl::Span` and this proposal are:
>+//    * `absl::Span` uses `size_t` for `size_type`
>+//    * `absl::Span` has no `operator()`
>+//    * `absl::Span` has no constructors for `std::unique_ptr` or
>+//      `std::shared_ptr`
>+//    * `absl::Span` has the factory functions `MakeSpan()` and
>+//      `MakeConstSpan()`
>+//    * `absl::Span` has `front()` and `back()` methods
>+//    * bounds-checked access to `absl::Span` is accomplished with `at()`
>+//    * `absl::Span` has compiler-provided move and copy constructors and
>+//      assignment. This is due to them being specified as `constexpr`, but that
>+//      implies const in C++11.
>+//    * `absl::Span` has no `element_type` or `index_type` typedefs
>+//    * A read-only `absl::Span<const T>` can be implicitly constructed from an
>+//      initializer list.
>+//    * `absl::Span` has no `bytes()`, `size_bytes()`, `as_bytes()`, or
>+//      `as_mutable_bytes()` methods
>+//    * `absl::Span` has no static extent template parameter, nor constructors
>+//      which exist only because of the static extent parameter.
>+//    * `absl::Span` has an explicit mutable-reference constructor
>+//
>+// For more information, see the class comments below.
>+#ifndef ABSL_TYPES_SPAN_H_
>+#define ABSL_TYPES_SPAN_H_
>+
>+#include <algorithm>
>+#include <cassert>
>+#include <cstddef>
>+#include <initializer_list>
>+#include <iterator>
>+#include <string>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/algorithm/algorithm.h"
>+#include "absl/base/internal/throw_delegate.h"
>+#include "absl/base/macros.h"
>+#include "absl/base/optimization.h"
>+#include "absl/base/port.h"
>+#include "absl/meta/type_traits.h"
>+
>+namespace absl {
>+
>+template <typename T>
>+class Span;
>+
>+namespace span_internal {
>+// A constexpr min function
>+constexpr size_t Min(size_t a, size_t b) noexcept { return a < b ? a : b; }
>+
>+// Wrappers for access to container data pointers.
>+template <typename C>
>+constexpr auto GetDataImpl(C& c, char) noexcept  // NOLINT(runtime/references)
>+    -> decltype(c.data()) {
>+  return c.data();
>+}
>+
>+// Before C++17, std::string::data returns a const char* in all cases.
>+inline char* GetDataImpl(std::string& s,  // NOLINT(runtime/references)
>+                         int) noexcept {
>+  return &s[0];
>+}
>+
>+template <typename C>
>+constexpr auto GetData(C& c) noexcept  // NOLINT(runtime/references)
>+    -> decltype(GetDataImpl(c, 0)) {
>+  return GetDataImpl(c, 0);
>+}
>+
>+// Detection idioms for size() and data().
>+template <typename C>
>+using HasSize =
>+    std::is_integral<absl::decay_t<decltype(std::declval<C&>().size())>>;
>+
>+// We want to enable conversion from vector<T*> to Span<const T* const> but
>+// disable conversion from vector<Derived> to Span<Base>. Here we use
>+// the fact that U** is convertible to Q* const* if and only if Q is the same
>+// type or a more cv-qualified version of U.  We also decay the result type of
>+// data() to avoid problems with classes which have a member function data()
>+// which returns a reference.
>+template <typename T, typename C>
>+using HasData =
>+    std::is_convertible<absl::decay_t<decltype(GetData(std::declval<C&>()))>*,
>+                        T* const*>;
>+
>+// Extracts value type from a Container
>+template <typename C>
>+struct ElementType {
>+  using type = typename absl::remove_reference_t<C>::value_type;
>+};
>+
>+template <typename T, size_t N>
>+struct ElementType<T (&)[N]> {
>+  using type = T;
>+};
>+
>+template <typename C>
>+using ElementT = typename ElementType<C>::type;
>+
>+template <typename T>
>+using EnableIfMutable =
>+    typename std::enable_if<!std::is_const<T>::value, int>::type;
>+
>+template <typename T>
>+bool EqualImpl(Span<T> a, Span<T> b) {
>+  static_assert(std::is_const<T>::value, "");
>+  return absl::equal(a.begin(), a.end(), b.begin(), b.end());
>+}
>+
>+template <typename T>
>+bool LessThanImpl(Span<T> a, Span<T> b) {
>+  static_assert(std::is_const<T>::value, "");
>+  return std::lexicographical_compare(a.begin(), a.end(), b.begin(), b.end());
>+}
>+
>+// The `IsConvertible` classes here are needed because of the
>+// `std::is_convertible` bug in libcxx when compiled with GCC. This build
>+// configuration is used by Android NDK toolchain. Reference link:
>+// https://bugs.llvm.org/show_bug.cgi?id=27538.
>+template <typename From, typename To>
>+struct IsConvertibleHelper {
>+ private:
>+  static std::true_type testval(To);
>+  static std::false_type testval(...);
>+
>+ public:
>+  using type = decltype(testval(std::declval<From>()));
>+};
>+
>+template <typename From, typename To>
>+struct IsConvertible : IsConvertibleHelper<From, To>::type {};
>+
>+// TODO(zhangxy): replace `IsConvertible` with `std::is_convertible` once the
>+// older version of libcxx is not supported.
>+template <typename From, typename To>
>+using EnableIfConvertibleToSpanConst =
>+    typename std::enable_if<IsConvertible<From, Span<const To>>::value>::type;
>+}  // namespace span_internal
>+
>+//------------------------------------------------------------------------------
>+// Span
>+//------------------------------------------------------------------------------
>+//
>+// A `Span` is an "array view" type for holding a view of a contiguous data
>+// array; the `Span` object does not and cannot own such data itself. A span
>+// provides an easy way to provide overloads for anything operating on
>+// contiguous sequences without needing to manage pointers and array lengths
>+// manually.
>+
>+// A span is conceptually a pointer (ptr) and a length (size) into an already
>+// existing array of contiguous memory; the array it represents references the
>+// elements "ptr[0] .. ptr[size-1]". Passing a properly-constructed `Span`
>+// instead of raw pointers avoids many issues related to index out of bounds
>+// errors.
>+//
>+// Spans may also be constructed from containers holding contiguous sequences.
>+// Such containers must supply `data()` and `size() const` methods (e.g
>+// `std::vector<T>`, `absl::InlinedVector<T, N>`). All implicit conversions to
>+// `absl::Span` from such containers will create spans of type `const T`;
>+// spans which can mutate their values (of type `T`) must use explicit
>+// constructors.
>+//
>+// A `Span<T>` is somewhat analogous to an `absl::string_view`, but for an array
>+// of elements of type `T`. A user of `Span` must ensure that the data being
>+// pointed to outlives the `Span` itself.
>+//
>+// You can construct a `Span<T>` in several ways:
>+//
>+//   * Explicitly from a reference to a container type
>+//   * Explicitly from a pointer and size
>+//   * Implicitly from a container type (but only for spans of type `const T`)
>+//   * Using the `MakeSpan()` or `MakeConstSpan()` factory functions.
>+//
>+// Examples:
>+//
>+//   // Construct a Span explicitly from a container:
>+//   std::vector<int> v = {1, 2, 3, 4, 5};
>+//   auto span = absl::Span<const int>(v);
>+//
>+//   // Construct a Span explicitly from a C-style array:
>+//   int a[5] =  {1, 2, 3, 4, 5};
>+//   auto span = absl::Span<const int>(a);
>+//
>+//   // Construct a Span implicitly from a container
>+//   void MyRoutine(absl::Span<const int> a) {
>+//     ...
>+//   }
>+//   std::vector v = {1,2,3,4,5};
>+//   MyRoutine(v)                     // convert to Span<const T>
>+//
>+// Note that `Span` objects, in addition to requiring that the memory they
>+// point to remains alive, must also ensure that such memory does not get
>+// reallocated. Therefore, to avoid undefined behavior, containers with
>+// associated span views should not invoke operations that may reallocate memory
>+// (such as resizing) or invalidate iterators into the container.
>+//
>+// One common use for a `Span` is when passing arguments to a routine that can
>+// accept a variety of array types (e.g. a `std::vector`, `absl::InlinedVector`,
>+// a C-style array, etc.). Instead of creating overloads for each case, you
>+// can simply specify a `Span` as the argument to such a routine.
>+//
>+// Example:
>+//
>+//   void MyRoutine(absl::Span<const int> a) {
>+//     ...
>+//   }
>+//
>+//   std::vector v = {1,2,3,4,5};
>+//   MyRoutine(v);
>+//
>+//   absl::InlinedVector<int, 4> my_inline_vector;
>+//   MyRoutine(my_inline_vector);
>+//
>+//   // Explicit constructor from pointer,size
>+//   int* my_array = new int[10];
>+//   MyRoutine(absl::Span<const int>(my_array, 10));
>+template <typename T>
>+class Span {
>+ private:
>+  // Used to determine whether a Span can be constructed from a container of
>+  // type C.
>+  template <typename C>
>+  using EnableIfConvertibleFrom =
>+      typename std::enable_if<span_internal::HasData<T, C>::value &&
>+                              span_internal::HasSize<C>::value>::type;
>+
>+  // Used to SFINAE-enable a function when the slice elements are const.
>+  template <typename U>
>+  using EnableIfConstView =
>+      typename std::enable_if<std::is_const<T>::value, U>::type;
>+
>+  // Used to SFINAE-enable a function when the slice elements are mutable.
>+  template <typename U>
>+  using EnableIfMutableView =
>+      typename std::enable_if<!std::is_const<T>::value, U>::type;
>+
>+ public:
>+  using value_type = absl::remove_cv_t<T>;
>+  using pointer = T*;
>+  using const_pointer = const T*;
>+  using reference = T&;
>+  using const_reference = const T&;
>+  using iterator = pointer;
>+  using const_iterator = const_pointer;
>+  using reverse_iterator = std::reverse_iterator<iterator>;
>+  using const_reverse_iterator = std::reverse_iterator<const_iterator>;
>+  using size_type = size_t;
>+  using difference_type = ptrdiff_t;
>+
>+  static const size_type npos = ~(size_type(0));
>+
>+  constexpr Span() noexcept : Span(nullptr, 0) {}
>+  constexpr Span(pointer array, size_type length) noexcept
>+      : ptr_(array), len_(length) {}
>+
>+  // Implicit conversion constructors
>+  template <size_t N>
>+  constexpr Span(T (&a)[N]) noexcept  // NOLINT(runtime/explicit)
>+      : Span(a, N) {}
>+
>+  // Explicit reference constructor for a mutable `Span<T>` type. Can be
>+  // replaced with MakeSpan() to infer the type parameter.
>+  template <typename V, typename = EnableIfConvertibleFrom<V>,
>+            typename = EnableIfMutableView<V>>
>+  explicit Span(V& v) noexcept  // NOLINT(runtime/references)
>+      : Span(span_internal::GetData(v), v.size()) {}
>+
>+  // Implicit reference constructor for a read-only `Span<const T>` type
>+  template <typename V, typename = EnableIfConvertibleFrom<V>,
>+            typename = EnableIfConstView<V>>
>+  constexpr Span(const V& v) noexcept  // NOLINT(runtime/explicit)
>+      : Span(span_internal::GetData(v), v.size()) {}
>+
>+  // Implicit constructor from an initializer list, making it possible to pass a
>+  // brace-enclosed initializer list to a function expecting a `Span`. Such
>+  // spans constructed from an initializer list must be of type `Span<const T>`.
>+  //
>+  //   void Process(absl::Span<const int> x);
>+  //   Process({1, 2, 3});
>+  //
>+  // Note that as always the array referenced by the span must outlive the span.
>+  // Since an initializer list constructor acts as if it is fed a temporary
>+  // array (cf. C++ standard [dcl.init.list]/5), it's safe to use this
>+  // constructor only when the `std::initializer_list` itself outlives the span.
>+  // In order to meet this requirement it's sufficient to ensure that neither
>+  // the span nor a copy of it is used outside of the expression in which it's
>+  // created:
>+  //
>+  //   // Assume that this function uses the array directly, not retaining any
>+  //   // copy of the span or pointer to any of its elements.
>+  //   void Process(absl::Span<const int> ints);
>+  //
>+  //   // Okay: the std::initializer_list<int> will reference a temporary array
>+  //   // that isn't destroyed until after the call to Process returns.
>+  //   Process({ 17, 19 });
>+  //
>+  //   // Not okay: the storage used by the std::initializer_list<int> is not
>+  //   // allowed to be referenced after the first line.
>+  //   absl::Span<const int> ints = { 17, 19 };
>+  //   Process(ints);
>+  //
>+  //   // Not okay for the same reason as above: even when the elements of the
>+  //   // initializer list expression are not temporaries the underlying array
>+  //   // is, so the initializer list must still outlive the span.
>+  //   const int foo = 17;
>+  //   absl::Span<const int> ints = { foo };
>+  //   Process(ints);
>+  //
>+  template <typename LazyT = T,
>+            typename = EnableIfConstView<LazyT>>
>+  Span(
>+      std::initializer_list<value_type> v) noexcept  // NOLINT(runtime/explicit)
>+      : Span(v.begin(), v.size()) {}
>+
>+  // Accessors
>+
>+  // Span::data()
>+  //
>+  // Returns a pointer to the span's underlying array of data (which is held
>+  // outside the span).
>+  constexpr pointer data() const noexcept { return ptr_; }
>+
>+  // Span::size()
>+  //
>+  // Returns the size of this span.
>+  constexpr size_type size() const noexcept { return len_; }
>+
>+  // Span::length()
>+  //
>+  // Returns the length (size) of this span.
>+  constexpr size_type length() const noexcept { return size(); }
>+
>+  // Span::empty()
>+  //
>+  // Returns a boolean indicating whether or not this span is considered empty.
>+  constexpr bool empty() const noexcept { return size() == 0; }
>+
>+  // Span::operator[]
>+  //
>+  // Returns a reference to the i'th element of this span.
>+  constexpr reference operator[](size_type i) const noexcept {
>+    // MSVC 2015 accepts this as constexpr, but not ptr_[i]
>+    return *(data() + i);
>+  }
>+
>+  // Span::at()
>+  //
>+  // Returns a reference to the i'th element of this span.
>+  constexpr reference at(size_type i) const {
>+    return ABSL_PREDICT_TRUE(i < size())
>+               ? ptr_[i]
>+               : (base_internal::ThrowStdOutOfRange(
>+                      "Span::at failed bounds check"),
>+                  ptr_[i]);
>+  }
>+
>+  // Span::front()
>+  //
>+  // Returns a reference to the first element of this span.
>+  reference front() const noexcept { return ABSL_ASSERT(size() > 0), ptr_[0]; }
>+
>+  // Span::back()
>+  //
>+  // Returns a reference to the last element of this span.
>+  reference back() const noexcept {
>+    return ABSL_ASSERT(size() > 0), ptr_[size() - 1];
>+  }
>+
>+  // Span::begin()
>+  //
>+  // Returns an iterator to the first element of this span.
>+  constexpr iterator begin() const noexcept { return ptr_; }
>+
>+  // Span::cbegin()
>+  //
>+  // Returns a const iterator to the first element of this span.
>+  constexpr const_iterator cbegin() const noexcept { return ptr_; }
>+
>+  // Span::end()
>+  //
>+  // Returns an iterator to the last element of this span.
>+  iterator end() const noexcept { return ptr_ + len_; }
>+
>+  // Span::cend()
>+  //
>+  // Returns a const iterator to the last element of this span.
>+  const_iterator cend() const noexcept { return end(); }
>+
>+  // Span::rbegin()
>+  //
>+  // Returns a reverse iterator starting at the last element of this span.
>+  reverse_iterator rbegin() const noexcept { return reverse_iterator(end()); }
>+
>+  // Span::crbegin()
>+  //
>+  // Returns a reverse const iterator starting at the last element of this span.
>+  const_reverse_iterator crbegin() const noexcept { return rbegin(); }
>+
>+  // Span::rend()
>+  //
>+  // Returns a reverse iterator starting at the first element of this span.
>+  reverse_iterator rend() const noexcept { return reverse_iterator(begin()); }
>+
>+  // Span::crend()
>+  //
>+  // Returns a reverse iterator starting at the first element of this span.
>+  const_reverse_iterator crend() const noexcept { return rend(); }
>+
>+  // Span mutations
>+
>+  // Span::remove_prefix()
>+  //
>+  // Removes the first `n` elements from the span.
>+  void remove_prefix(size_type n) noexcept {
>+    assert(len_ >= n);
>+    ptr_ += n;
>+    len_ -= n;
>+  }
>+
>+  // Span::remove_suffix()
>+  //
>+  // Removes the last `n` elements from the span.
>+  void remove_suffix(size_type n) noexcept {
>+    assert(len_ >= n);
>+    len_ -= n;
>+  }
>+
>+  // Span::subspan()
>+  //
>+  // Returns a `Span` starting at element `pos` and of length `len`. Both `pos`
>+  // and `len` are of type `size_type` and thus non-negative. Parameter `pos`
>+  // must be <= size(). Any `len` value that points past the end of the span
>+  // will be trimmed to at most size() - `pos`. A default `len` value of `npos`
>+  // ensures the returned subspan continues until the end of the span.
>+  //
>+  // Examples:
>+  //
>+  //   std::vector<int> vec = {10, 11, 12, 13};
>+  //   absl::MakeSpan(vec).subspan(1, 2);  // {11, 12}
>+  //   absl::MakeSpan(vec).subspan(2, 8);  // {12, 13}
>+  //   absl::MakeSpan(vec).subspan(1);     // {11, 12, 13}
>+  //   absl::MakeSpan(vec).subspan(4);     // {}
>+  //   absl::MakeSpan(vec).subspan(5);     // throws std::out_of_range
>+  constexpr Span subspan(size_type pos = 0, size_type len = npos) const {
>+    return (pos <= len_)
>+               ? Span(ptr_ + pos, span_internal::Min(len_ - pos, len))
>+               : (base_internal::ThrowStdOutOfRange("pos > size()"), Span());
>+  }
>+
>+ private:
>+  pointer ptr_;
>+  size_type len_;
>+};
>+
>+template <typename T>
>+const typename Span<T>::size_type Span<T>::npos;
>+
>+// Span relationals
>+
>+// Equality is compared element-by-element, while ordering is lexicographical.
>+// We provide three overloads for each operator to cover any combination on the
>+// left or right hand side of mutable Span<T>, read-only Span<const T>, and
>+// convertible-to-read-only Span<T>.
>+// TODO(zhangxy): Due to MSVC overload resolution bug with partial ordering
>+// template functions, 5 overloads per operator is needed as a workaround. We
>+// should update them to 3 overloads per operator using non-deduced context like
>+// string_view, i.e.
>+// - (Span<T>, Span<T>)
>+// - (Span<T>, non_deduced<Span<const T>>)
>+// - (non_deduced<Span<const T>>, Span<T>)
>+
>+// operator==
>+template <typename T>
>+bool operator==(Span<T> a, Span<T> b) {
>+  return span_internal::EqualImpl<const T>(a, b);
>+}
>+template <typename T>
>+bool operator==(Span<const T> a, Span<T> b) {
>+  return span_internal::EqualImpl<const T>(a, b);
>+}
>+template <typename T>
>+bool operator==(Span<T> a, Span<const T> b) {
>+  return span_internal::EqualImpl<const T>(a, b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator==(const U& a, Span<T> b) {
>+  return span_internal::EqualImpl<const T>(a, b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator==(Span<T> a, const U& b) {
>+  return span_internal::EqualImpl<const T>(a, b);
>+}
>+
>+// operator!=
>+template <typename T>
>+bool operator!=(Span<T> a, Span<T> b) {
>+  return !(a == b);
>+}
>+template <typename T>
>+bool operator!=(Span<const T> a, Span<T> b) {
>+  return !(a == b);
>+}
>+template <typename T>
>+bool operator!=(Span<T> a, Span<const T> b) {
>+  return !(a == b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator!=(const U& a, Span<T> b) {
>+  return !(a == b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator!=(Span<T> a, const U& b) {
>+  return !(a == b);
>+}
>+
>+// operator<
>+template <typename T>
>+bool operator<(Span<T> a, Span<T> b) {
>+  return span_internal::LessThanImpl<const T>(a, b);
>+}
>+template <typename T>
>+bool operator<(Span<const T> a, Span<T> b) {
>+  return span_internal::LessThanImpl<const T>(a, b);
>+}
>+template <typename T>
>+bool operator<(Span<T> a, Span<const T> b) {
>+  return span_internal::LessThanImpl<const T>(a, b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator<(const U& a, Span<T> b) {
>+  return span_internal::LessThanImpl<const T>(a, b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator<(Span<T> a, const U& b) {
>+  return span_internal::LessThanImpl<const T>(a, b);
>+}
>+
>+// operator>
>+template <typename T>
>+bool operator>(Span<T> a, Span<T> b) {
>+  return b < a;
>+}
>+template <typename T>
>+bool operator>(Span<const T> a, Span<T> b) {
>+  return b < a;
>+}
>+template <typename T>
>+bool operator>(Span<T> a, Span<const T> b) {
>+  return b < a;
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator>(const U& a, Span<T> b) {
>+  return b < a;
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator>(Span<T> a, const U& b) {
>+  return b < a;
>+}
>+
>+// operator<=
>+template <typename T>
>+bool operator<=(Span<T> a, Span<T> b) {
>+  return !(b < a);
>+}
>+template <typename T>
>+bool operator<=(Span<const T> a, Span<T> b) {
>+  return !(b < a);
>+}
>+template <typename T>
>+bool operator<=(Span<T> a, Span<const T> b) {
>+  return !(b < a);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator<=(const U& a, Span<T> b) {
>+  return !(b < a);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator<=(Span<T> a, const U& b) {
>+  return !(b < a);
>+}
>+
>+// operator>=
>+template <typename T>
>+bool operator>=(Span<T> a, Span<T> b) {
>+  return !(a < b);
>+}
>+template <typename T>
>+bool operator>=(Span<const T> a, Span<T> b) {
>+  return !(a < b);
>+}
>+template <typename T>
>+bool operator>=(Span<T> a, Span<const T> b) {
>+  return !(a < b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator>=(const U& a, Span<T> b) {
>+  return !(a < b);
>+}
>+template <typename T, typename U,
>+          typename = span_internal::EnableIfConvertibleToSpanConst<U, T>>
>+bool operator>=(Span<T> a, const U& b) {
>+  return !(a < b);
>+}
>+
>+// MakeSpan()
>+//
>+// Constructs a mutable `Span<T>`, deducing `T` automatically from either a
>+// container or pointer+size.
>+//
>+// Because a read-only `Span<const T>` is implicitly constructed from container
>+// types regardless of whether the container itself is a const container,
>+// constructing mutable spans of type `Span<T>` from containers requires
>+// explicit constructors. The container-accepting version of `MakeSpan()`
>+// deduces the type of `T` by the constness of the pointer received from the
>+// container's `data()` member. Similarly, the pointer-accepting version returns
>+// a `Span<const T>` if `T` is `const`, and a `Span<T>` otherwise.
>+//
>+// Examples:
>+//
>+//   void MyRoutine(absl::Span<MyComplicatedType> a) {
>+//     ...
>+//   };
>+//   // my_vector is a container of non-const types
>+//   std::vector<MyComplicatedType> my_vector;
>+//
>+//   // Constructing a Span implicitly attempts to create a Span of type
>+//   // `Span<const T>`
>+//   MyRoutine(my_vector);                // error, type mismatch
>+//
>+//   // Explicitly constructing the Span is verbose
>+//   MyRoutine(absl::Span<MyComplicatedType>(my_vector));
>+//
>+//   // Use MakeSpan() to make an absl::Span<T>
>+//   MyRoutine(absl::MakeSpan(my_vector));
>+//
>+//   // Construct a span from an array ptr+size
>+//   absl::Span<T> my_span() {
>+//     return absl::MakeSpan(&array[0], num_elements_);
>+//   }
>+//
>+template <int&... ExplicitArgumentBarrier, typename T>
>+constexpr Span<T> MakeSpan(T* ptr, size_t size) noexcept {
>+  return Span<T>(ptr, size);
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename T>
>+Span<T> MakeSpan(T* begin, T* end) noexcept {
>+  return ABSL_ASSERT(begin <= end), Span<T>(begin, end - begin);
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename C>
>+constexpr auto MakeSpan(C& c) noexcept  // NOLINT(runtime/references)
>+    -> decltype(absl::MakeSpan(span_internal::GetData(c), c.size())) {
>+  return MakeSpan(span_internal::GetData(c), c.size());
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename T, size_t N>
>+constexpr Span<T> MakeSpan(T (&array)[N]) noexcept {
>+  return Span<T>(array, N);
>+}
>+
>+// MakeConstSpan()
>+//
>+// Constructs a `Span<const T>` as with `MakeSpan`, deducing `T` automatically,
>+// but always returning a `Span<const T>`.
>+//
>+// Examples:
>+//
>+//   void ProcessInts(absl::Span<const int> some_ints);
>+//
>+//   // Call with a pointer and size.
>+//   int array[3] = { 0, 0, 0 };
>+//   ProcessInts(absl::MakeConstSpan(&array[0], 3));
>+//
>+//   // Call with a [begin, end) pair.
>+//   ProcessInts(absl::MakeConstSpan(&array[0], &array[3]));
>+//
>+//   // Call directly with an array.
>+//   ProcessInts(absl::MakeConstSpan(array));
>+//
>+//   // Call with a contiguous container.
>+//   std::vector<int> some_ints = ...;
>+//   ProcessInts(absl::MakeConstSpan(some_ints));
>+//   ProcessInts(absl::MakeConstSpan(std::vector<int>{ 0, 0, 0 }));
>+//
>+template <int&... ExplicitArgumentBarrier, typename T>
>+constexpr Span<const T> MakeConstSpan(T* ptr, size_t size) noexcept {
>+  return Span<const T>(ptr, size);
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename T>
>+Span<const T> MakeConstSpan(T* begin, T* end) noexcept {
>+  return ABSL_ASSERT(begin <= end), Span<const T>(begin, end - begin);
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename C>
>+constexpr auto MakeConstSpan(const C& c) noexcept -> decltype(MakeSpan(c)) {
>+  return MakeSpan(c);
>+}
>+
>+template <int&... ExplicitArgumentBarrier, typename T, size_t N>
>+constexpr Span<const T> MakeConstSpan(const T (&array)[N]) noexcept {
>+  return Span<const T>(array, N);
>+}
>+}  // namespace absl
>+#endif  // ABSL_TYPES_SPAN_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..fbce7e87479841cf89138026993238c399862168
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/span_test.cc
>@@ -0,0 +1,781 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/types/span.h"
>+
>+#include <array>
>+#include <initializer_list>
>+#include <numeric>
>+#include <stdexcept>
>+#include <string>
>+#include <type_traits>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/base/config.h"
>+#include "absl/base/internal/exception_testing.h"
>+#include "absl/container/fixed_array.h"
>+#include "absl/container/inlined_vector.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+MATCHER_P(DataIs, data,
>+          absl::StrCat("data() is ", negation ? "is " : "isn't ",
>+                       testing::PrintToString(data))) {
>+  return arg.data() == data;
>+}
>+
>+template <typename T>
>+auto SpanIs(T data, size_t size)
>+    -> decltype(testing::AllOf(DataIs(data), testing::SizeIs(size))) {
>+  return testing::AllOf(DataIs(data), testing::SizeIs(size));
>+}
>+
>+template <typename Container>
>+auto SpanIs(const Container& c) -> decltype(SpanIs(c.data(), c.size())) {
>+  return SpanIs(c.data(), c.size());
>+}
>+
>+std::vector<int> MakeRamp(int len, int offset = 0) {
>+  std::vector<int> v(len);
>+  std::iota(v.begin(), v.end(), offset);
>+  return v;
>+}
>+
>+TEST(IntSpan, EmptyCtors) {
>+  absl::Span<int> s;
>+  EXPECT_THAT(s, SpanIs(nullptr, 0));
>+}
>+
>+TEST(IntSpan, PtrLenCtor) {
>+  int a[] = {1, 2, 3};
>+  absl::Span<int> s(&a[0], 2);
>+  EXPECT_THAT(s, SpanIs(a, 2));
>+}
>+
>+TEST(IntSpan, ArrayCtor) {
>+  int a[] = {1, 2, 3};
>+  absl::Span<int> s(a);
>+  EXPECT_THAT(s, SpanIs(a, 3));
>+
>+  EXPECT_TRUE((std::is_constructible<absl::Span<const int>, int[3]>::value));
>+  EXPECT_TRUE(
>+      (std::is_constructible<absl::Span<const int>, const int[3]>::value));
>+  EXPECT_FALSE((std::is_constructible<absl::Span<int>, const int[3]>::value));
>+  EXPECT_TRUE((std::is_convertible<int[3], absl::Span<const int>>::value));
>+  EXPECT_TRUE(
>+      (std::is_convertible<const int[3], absl::Span<const int>>::value));
>+}
>+
>+template <typename T>
>+void TakesGenericSpan(absl::Span<T>) {}
>+
>+TEST(IntSpan, ContainerCtor) {
>+  std::vector<int> empty;
>+  absl::Span<int> s_empty(empty);
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::vector<int> filled{1, 2, 3};
>+  absl::Span<int> s_filled(filled);
>+  EXPECT_THAT(s_filled, SpanIs(filled));
>+
>+  absl::Span<int> s_from_span(filled);
>+  EXPECT_THAT(s_from_span, SpanIs(s_filled));
>+
>+  absl::Span<const int> const_filled = filled;
>+  EXPECT_THAT(const_filled, SpanIs(filled));
>+
>+  absl::Span<const int> const_from_span = s_filled;
>+  EXPECT_THAT(const_from_span, SpanIs(s_filled));
>+
>+  EXPECT_TRUE(
>+      (std::is_convertible<std::vector<int>&, absl::Span<const int>>::value));
>+  EXPECT_TRUE(
>+      (std::is_convertible<absl::Span<int>&, absl::Span<const int>>::value));
>+
>+  TakesGenericSpan(absl::Span<int>(filled));
>+}
>+
>+// A struct supplying shallow data() const.
>+struct ContainerWithShallowConstData {
>+  std::vector<int> storage;
>+  int* data() const { return const_cast<int*>(storage.data()); }
>+  int size() const { return storage.size(); }
>+};
>+
>+TEST(IntSpan, ShallowConstness) {
>+  const ContainerWithShallowConstData c{MakeRamp(20)};
>+  absl::Span<int> s(
>+      c);  // We should be able to do this even though data() is const.
>+  s[0] = -1;
>+  EXPECT_EQ(c.storage[0], -1);
>+}
>+
>+TEST(CharSpan, StringCtor) {
>+  std::string empty = "";
>+  absl::Span<char> s_empty(empty);
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::string abc = "abc";
>+  absl::Span<char> s_abc(abc);
>+  EXPECT_THAT(s_abc, SpanIs(abc));
>+
>+  absl::Span<const char> s_const_abc = abc;
>+  EXPECT_THAT(s_const_abc, SpanIs(abc));
>+
>+  EXPECT_FALSE((std::is_constructible<absl::Span<int>, std::string>::value));
>+  EXPECT_FALSE((std::is_constructible<absl::Span<const int>, std::string>::value));
>+  EXPECT_TRUE((std::is_convertible<std::string, absl::Span<const char>>::value));
>+}
>+
>+TEST(IntSpan, FromConstPointer) {
>+  EXPECT_TRUE((std::is_constructible<absl::Span<const int* const>,
>+                                     std::vector<int*>>::value));
>+  EXPECT_TRUE((std::is_constructible<absl::Span<const int* const>,
>+                                     std::vector<const int*>>::value));
>+  EXPECT_FALSE((
>+      std::is_constructible<absl::Span<const int*>, std::vector<int*>>::value));
>+  EXPECT_FALSE((
>+      std::is_constructible<absl::Span<int*>, std::vector<const int*>>::value));
>+}
>+
>+struct TypeWithMisleadingData {
>+  int& data() { return i; }
>+  int size() { return 1; }
>+  int i;
>+};
>+
>+struct TypeWithMisleadingSize {
>+  int* data() { return &i; }
>+  const char* size() { return "1"; }
>+  int i;
>+};
>+
>+TEST(IntSpan, EvilTypes) {
>+  EXPECT_FALSE(
>+      (std::is_constructible<absl::Span<int>, TypeWithMisleadingData&>::value));
>+  EXPECT_FALSE(
>+      (std::is_constructible<absl::Span<int>, TypeWithMisleadingSize&>::value));
>+}
>+
>+struct Base {
>+  int* data() { return &i; }
>+  int size() { return 1; }
>+  int i;
>+};
>+struct Derived : Base {};
>+
>+TEST(IntSpan, SpanOfDerived) {
>+  EXPECT_TRUE((std::is_constructible<absl::Span<int>, Base&>::value));
>+  EXPECT_TRUE((std::is_constructible<absl::Span<int>, Derived&>::value));
>+  EXPECT_FALSE(
>+      (std::is_constructible<absl::Span<Base>, std::vector<Derived>>::value));
>+}
>+
>+void TestInitializerList(absl::Span<const int> s, const std::vector<int>& v) {
>+  EXPECT_TRUE(absl::equal(s.begin(), s.end(), v.begin(), v.end()));
>+}
>+
>+TEST(ConstIntSpan, InitializerListConversion) {
>+  TestInitializerList({}, {});
>+  TestInitializerList({1}, {1});
>+  TestInitializerList({1, 2, 3}, {1, 2, 3});
>+
>+  EXPECT_FALSE((std::is_constructible<absl::Span<int>,
>+                                      std::initializer_list<int>>::value));
>+  EXPECT_FALSE((
>+      std::is_convertible<absl::Span<int>, std::initializer_list<int>>::value));
>+}
>+
>+TEST(IntSpan, Data) {
>+  int i;
>+  absl::Span<int> s(&i, 1);
>+  EXPECT_EQ(&i, s.data());
>+}
>+
>+TEST(IntSpan, SizeLengthEmpty) {
>+  absl::Span<int> empty;
>+  EXPECT_EQ(empty.size(), 0);
>+  EXPECT_TRUE(empty.empty());
>+  EXPECT_EQ(empty.size(), empty.length());
>+
>+  auto v = MakeRamp(10);
>+  absl::Span<int> s(v);
>+  EXPECT_EQ(s.size(), 10);
>+  EXPECT_FALSE(s.empty());
>+  EXPECT_EQ(s.size(), s.length());
>+}
>+
>+TEST(IntSpan, ElementAccess) {
>+  auto v = MakeRamp(10);
>+  absl::Span<int> s(v);
>+  for (int i = 0; i < s.size(); ++i) {
>+    EXPECT_EQ(s[i], s.at(i));
>+  }
>+
>+  EXPECT_EQ(s.front(), s[0]);
>+  EXPECT_EQ(s.back(), s[9]);
>+}
>+
>+TEST(IntSpan, AtThrows) {
>+  auto v = MakeRamp(10);
>+  absl::Span<int> s(v);
>+
>+  EXPECT_EQ(s.at(9), 9);
>+  ABSL_BASE_INTERNAL_EXPECT_FAIL(s.at(10), std::out_of_range,
>+                                 "failed bounds check");
>+}
>+
>+TEST(IntSpan, RemovePrefixAndSuffix) {
>+  auto v = MakeRamp(20, 1);
>+  absl::Span<int> s(v);
>+  EXPECT_EQ(s.size(), 20);
>+
>+  s.remove_suffix(0);
>+  s.remove_prefix(0);
>+  EXPECT_EQ(s.size(), 20);
>+
>+  s.remove_prefix(1);
>+  EXPECT_EQ(s.size(), 19);
>+  EXPECT_EQ(s[0], 2);
>+
>+  s.remove_suffix(1);
>+  EXPECT_EQ(s.size(), 18);
>+  EXPECT_EQ(s.back(), 19);
>+
>+  s.remove_prefix(7);
>+  EXPECT_EQ(s.size(), 11);
>+  EXPECT_EQ(s[0], 9);
>+
>+  s.remove_suffix(11);
>+  EXPECT_EQ(s.size(), 0);
>+
>+  EXPECT_EQ(v, MakeRamp(20, 1));
>+}
>+
>+TEST(IntSpan, Subspan) {
>+  std::vector<int> empty;
>+  EXPECT_EQ(absl::MakeSpan(empty).subspan(), empty);
>+  EXPECT_THAT(absl::MakeSpan(empty).subspan(0, 0), SpanIs(empty));
>+  EXPECT_THAT(absl::MakeSpan(empty).subspan(0, absl::Span<const int>::npos),
>+              SpanIs(empty));
>+
>+  auto ramp = MakeRamp(10);
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(), SpanIs(ramp));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(0, 10), SpanIs(ramp));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(0, absl::Span<const int>::npos),
>+              SpanIs(ramp));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(0, 3), SpanIs(ramp.data(), 3));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(5, absl::Span<const int>::npos),
>+              SpanIs(ramp.data() + 5, 5));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(3, 3), SpanIs(ramp.data() + 3, 3));
>+  EXPECT_THAT(absl::MakeSpan(ramp).subspan(10, 5), SpanIs(ramp.data() + 10, 0));
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+  EXPECT_THROW(absl::MakeSpan(ramp).subspan(11, 5), std::out_of_range);
>+#else
>+  EXPECT_DEATH_IF_SUPPORTED(absl::MakeSpan(ramp).subspan(11, 5), "");
>+#endif
>+}
>+
>+TEST(IntSpan, MakeSpanPtrLength) {
>+  std::vector<int> empty;
>+  auto s_empty = absl::MakeSpan(empty.data(), empty.size());
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::array<int, 3> a{{1, 2, 3}};
>+  auto s = absl::MakeSpan(a.data(), a.size());
>+  EXPECT_THAT(s, SpanIs(a));
>+
>+  EXPECT_THAT(absl::MakeConstSpan(empty.data(), empty.size()), SpanIs(s_empty));
>+  EXPECT_THAT(absl::MakeConstSpan(a.data(), a.size()), SpanIs(s));
>+}
>+
>+TEST(IntSpan, MakeSpanTwoPtrs) {
>+  std::vector<int> empty;
>+  auto s_empty = absl::MakeSpan(empty.data(), empty.data());
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::vector<int> v{1, 2, 3};
>+  auto s = absl::MakeSpan(v.data(), v.data() + 1);
>+  EXPECT_THAT(s, SpanIs(v.data(), 1));
>+
>+  EXPECT_THAT(absl::MakeConstSpan(empty.data(), empty.data()), SpanIs(s_empty));
>+  EXPECT_THAT(absl::MakeConstSpan(v.data(), v.data() + 1), SpanIs(s));
>+}
>+
>+TEST(IntSpan, MakeSpanContainer) {
>+  std::vector<int> empty;
>+  auto s_empty = absl::MakeSpan(empty);
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::vector<int> v{1, 2, 3};
>+  auto s = absl::MakeSpan(v);
>+  EXPECT_THAT(s, SpanIs(v));
>+
>+  EXPECT_THAT(absl::MakeConstSpan(empty), SpanIs(s_empty));
>+  EXPECT_THAT(absl::MakeConstSpan(v), SpanIs(s));
>+
>+  EXPECT_THAT(absl::MakeSpan(s), SpanIs(s));
>+  EXPECT_THAT(absl::MakeConstSpan(s), SpanIs(s));
>+}
>+
>+TEST(CharSpan, MakeSpanString) {
>+  std::string empty = "";
>+  auto s_empty = absl::MakeSpan(empty);
>+  EXPECT_THAT(s_empty, SpanIs(empty));
>+
>+  std::string str = "abc";
>+  auto s_str = absl::MakeSpan(str);
>+  EXPECT_THAT(s_str, SpanIs(str));
>+
>+  EXPECT_THAT(absl::MakeConstSpan(empty), SpanIs(s_empty));
>+  EXPECT_THAT(absl::MakeConstSpan(str), SpanIs(s_str));
>+}
>+
>+TEST(IntSpan, MakeSpanArray) {
>+  int a[] = {1, 2, 3};
>+  auto s = absl::MakeSpan(a);
>+  EXPECT_THAT(s, SpanIs(a, 3));
>+
>+  const int ca[] = {1, 2, 3};
>+  auto s_ca = absl::MakeSpan(ca);
>+  EXPECT_THAT(s_ca, SpanIs(ca, 3));
>+
>+  EXPECT_THAT(absl::MakeConstSpan(a), SpanIs(s));
>+  EXPECT_THAT(absl::MakeConstSpan(ca), SpanIs(s_ca));
>+}
>+
>+// Compile-asserts that the argument has the expected decayed type.
>+template <typename Expected, typename T>
>+void CheckType(const T& /* value */) {
>+  testing::StaticAssertTypeEq<Expected, T>();
>+}
>+
>+TEST(IntSpan, MakeSpanTypes) {
>+  std::vector<int> vec;
>+  const std::vector<int> cvec;
>+  int a[1];
>+  const int ca[] = {1};
>+  int* ip = a;
>+  const int* cip = ca;
>+  std::string s = "";
>+  const std::string cs = "";
>+  CheckType<absl::Span<int>>(absl::MakeSpan(vec));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(cvec));
>+  CheckType<absl::Span<int>>(absl::MakeSpan(ip, ip + 1));
>+  CheckType<absl::Span<int>>(absl::MakeSpan(ip, 1));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(cip, cip + 1));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(cip, 1));
>+  CheckType<absl::Span<int>>(absl::MakeSpan(a));
>+  CheckType<absl::Span<int>>(absl::MakeSpan(a, a + 1));
>+  CheckType<absl::Span<int>>(absl::MakeSpan(a, 1));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(ca));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(ca, ca + 1));
>+  CheckType<absl::Span<const int>>(absl::MakeSpan(ca, 1));
>+  CheckType<absl::Span<char>>(absl::MakeSpan(s));
>+  CheckType<absl::Span<const char>>(absl::MakeSpan(cs));
>+}
>+
>+TEST(ConstIntSpan, MakeConstSpanTypes) {
>+  std::vector<int> vec;
>+  const std::vector<int> cvec;
>+  int array[1];
>+  const int carray[] = {0};
>+  int* ptr = array;
>+  const int* cptr = carray;
>+  std::string s = "";
>+  std::string cs = "";
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(vec));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(cvec));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(ptr, ptr + 1));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(ptr, 1));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(cptr, cptr + 1));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(cptr, 1));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(array));
>+  CheckType<absl::Span<const int>>(absl::MakeConstSpan(carray));
>+  CheckType<absl::Span<const char>>(absl::MakeConstSpan(s));
>+  CheckType<absl::Span<const char>>(absl::MakeConstSpan(cs));
>+}
>+
>+TEST(IntSpan, Equality) {
>+  const int arr1[] = {1, 2, 3, 4, 5};
>+  int arr2[] = {1, 2, 3, 4, 5};
>+  std::vector<int> vec1(std::begin(arr1), std::end(arr1));
>+  std::vector<int> vec2 = vec1;
>+  std::vector<int> other_vec = {2, 4, 6, 8, 10};
>+  // These two slices are from different vectors, but have the same size and
>+  // have the same elements (right now).  They should compare equal. Test both
>+  // == and !=.
>+  const absl::Span<const int> from1 = vec1;
>+  const absl::Span<const int> from2 = vec2;
>+  EXPECT_EQ(from1, from1);
>+  EXPECT_FALSE(from1 != from1);
>+  EXPECT_EQ(from1, from2);
>+  EXPECT_FALSE(from1 != from2);
>+
>+  // These two slices have different underlying vector values. They should be
>+  // considered not equal. Test both == and !=.
>+  const absl::Span<const int> from_other = other_vec;
>+  EXPECT_NE(from1, from_other);
>+  EXPECT_FALSE(from1 == from_other);
>+
>+  // Comparison between a vector and its slice should be equal. And vice-versa.
>+  // This ensures implicit conversion to Span works on both sides of ==.
>+  EXPECT_EQ(vec1, from1);
>+  EXPECT_FALSE(vec1 != from1);
>+  EXPECT_EQ(from1, vec1);
>+  EXPECT_FALSE(from1 != vec1);
>+
>+  // This verifies that absl::Span<T> can be compared freely with
>+  // absl::Span<const T>.
>+  const absl::Span<int> mutable_from1(vec1);
>+  const absl::Span<int> mutable_from2(vec2);
>+  EXPECT_EQ(from1, mutable_from1);
>+  EXPECT_EQ(mutable_from1, from1);
>+  EXPECT_EQ(mutable_from1, mutable_from2);
>+  EXPECT_EQ(mutable_from2, mutable_from1);
>+
>+  // Comparison between a vector and its slice should be equal for mutable
>+  // Spans as well.
>+  EXPECT_EQ(vec1, mutable_from1);
>+  EXPECT_FALSE(vec1 != mutable_from1);
>+  EXPECT_EQ(mutable_from1, vec1);
>+  EXPECT_FALSE(mutable_from1 != vec1);
>+
>+  // Comparison between convertible-to-Span-of-const and Span-of-mutable. Arrays
>+  // are used because they're the only value type which converts to a
>+  // Span-of-mutable. EXPECT_TRUE is used instead of EXPECT_EQ to avoid
>+  // array-to-pointer decay.
>+  EXPECT_TRUE(arr1 == mutable_from1);
>+  EXPECT_FALSE(arr1 != mutable_from1);
>+  EXPECT_TRUE(mutable_from1 == arr1);
>+  EXPECT_FALSE(mutable_from1 != arr1);
>+
>+  // Comparison between convertible-to-Span-of-mutable and Span-of-const
>+  EXPECT_TRUE(arr2 == from1);
>+  EXPECT_FALSE(arr2 != from1);
>+  EXPECT_TRUE(from1 == arr2);
>+  EXPECT_FALSE(from1 != arr2);
>+
>+  // With a different size, the array slices should not be equal.
>+  EXPECT_NE(from1, absl::Span<const int>(from1).subspan(0, from1.size() - 1));
>+
>+  // With different contents, the array slices should not be equal.
>+  ++vec2.back();
>+  EXPECT_NE(from1, from2);
>+}
>+
>+class IntSpanOrderComparisonTest : public testing::Test {
>+ public:
>+  IntSpanOrderComparisonTest()
>+      : arr_before_{1, 2, 3},
>+        arr_after_{1, 2, 4},
>+        carr_after_{1, 2, 4},
>+        vec_before_(std::begin(arr_before_), std::end(arr_before_)),
>+        vec_after_(std::begin(arr_after_), std::end(arr_after_)),
>+        before_(vec_before_),
>+        after_(vec_after_),
>+        cbefore_(vec_before_),
>+        cafter_(vec_after_) {}
>+
>+ protected:
>+  int arr_before_[3], arr_after_[3];
>+  const int carr_after_[3];
>+  std::vector<int> vec_before_, vec_after_;
>+  absl::Span<int> before_, after_;
>+  absl::Span<const int> cbefore_, cafter_;
>+};
>+
>+TEST_F(IntSpanOrderComparisonTest, CompareSpans) {
>+  EXPECT_TRUE(cbefore_ < cafter_);
>+  EXPECT_TRUE(cbefore_ <= cafter_);
>+  EXPECT_TRUE(cafter_ > cbefore_);
>+  EXPECT_TRUE(cafter_ >= cbefore_);
>+
>+  EXPECT_FALSE(cbefore_ > cafter_);
>+  EXPECT_FALSE(cafter_ < cbefore_);
>+
>+  EXPECT_TRUE(before_ < after_);
>+  EXPECT_TRUE(before_ <= after_);
>+  EXPECT_TRUE(after_ > before_);
>+  EXPECT_TRUE(after_ >= before_);
>+
>+  EXPECT_FALSE(before_ > after_);
>+  EXPECT_FALSE(after_ < before_);
>+
>+  EXPECT_TRUE(cbefore_ < after_);
>+  EXPECT_TRUE(cbefore_ <= after_);
>+  EXPECT_TRUE(after_ > cbefore_);
>+  EXPECT_TRUE(after_ >= cbefore_);
>+
>+  EXPECT_FALSE(cbefore_ > after_);
>+  EXPECT_FALSE(after_ < cbefore_);
>+}
>+
>+TEST_F(IntSpanOrderComparisonTest, SpanOfConstAndContainer) {
>+  EXPECT_TRUE(cbefore_ < vec_after_);
>+  EXPECT_TRUE(cbefore_ <= vec_after_);
>+  EXPECT_TRUE(vec_after_ > cbefore_);
>+  EXPECT_TRUE(vec_after_ >= cbefore_);
>+
>+  EXPECT_FALSE(cbefore_ > vec_after_);
>+  EXPECT_FALSE(vec_after_ < cbefore_);
>+
>+  EXPECT_TRUE(arr_before_ < cafter_);
>+  EXPECT_TRUE(arr_before_ <= cafter_);
>+  EXPECT_TRUE(cafter_ > arr_before_);
>+  EXPECT_TRUE(cafter_ >= arr_before_);
>+
>+  EXPECT_FALSE(arr_before_ > cafter_);
>+  EXPECT_FALSE(cafter_ < arr_before_);
>+}
>+
>+TEST_F(IntSpanOrderComparisonTest, SpanOfMutableAndContainer) {
>+  EXPECT_TRUE(vec_before_ < after_);
>+  EXPECT_TRUE(vec_before_ <= after_);
>+  EXPECT_TRUE(after_ > vec_before_);
>+  EXPECT_TRUE(after_ >= vec_before_);
>+
>+  EXPECT_FALSE(vec_before_ > after_);
>+  EXPECT_FALSE(after_ < vec_before_);
>+
>+  EXPECT_TRUE(before_ < carr_after_);
>+  EXPECT_TRUE(before_ <= carr_after_);
>+  EXPECT_TRUE(carr_after_ > before_);
>+  EXPECT_TRUE(carr_after_ >= before_);
>+
>+  EXPECT_FALSE(before_ > carr_after_);
>+  EXPECT_FALSE(carr_after_ < before_);
>+}
>+
>+TEST_F(IntSpanOrderComparisonTest, EqualSpans) {
>+  EXPECT_FALSE(before_ < before_);
>+  EXPECT_TRUE(before_ <= before_);
>+  EXPECT_FALSE(before_ > before_);
>+  EXPECT_TRUE(before_ >= before_);
>+}
>+
>+TEST_F(IntSpanOrderComparisonTest, Subspans) {
>+  auto subspan = before_.subspan(0, 1);
>+  EXPECT_TRUE(subspan < before_);
>+  EXPECT_TRUE(subspan <= before_);
>+  EXPECT_TRUE(before_ > subspan);
>+  EXPECT_TRUE(before_ >= subspan);
>+
>+  EXPECT_FALSE(subspan > before_);
>+  EXPECT_FALSE(before_ < subspan);
>+}
>+
>+TEST_F(IntSpanOrderComparisonTest, EmptySpans) {
>+  absl::Span<int> empty;
>+  EXPECT_FALSE(empty < empty);
>+  EXPECT_TRUE(empty <= empty);
>+  EXPECT_FALSE(empty > empty);
>+  EXPECT_TRUE(empty >= empty);
>+
>+  EXPECT_TRUE(empty < before_);
>+  EXPECT_TRUE(empty <= before_);
>+  EXPECT_TRUE(before_ > empty);
>+  EXPECT_TRUE(before_ >= empty);
>+
>+  EXPECT_FALSE(empty > before_);
>+  EXPECT_FALSE(before_ < empty);
>+}
>+
>+TEST(IntSpan, ExposesContainerTypesAndConsts) {
>+  absl::Span<int> slice;
>+  CheckType<absl::Span<int>::iterator>(slice.begin());
>+  EXPECT_TRUE((std::is_convertible<decltype(slice.begin()),
>+                                   absl::Span<int>::const_iterator>::value));
>+  CheckType<absl::Span<int>::const_iterator>(slice.cbegin());
>+  EXPECT_TRUE((std::is_convertible<decltype(slice.end()),
>+                                   absl::Span<int>::const_iterator>::value));
>+  CheckType<absl::Span<int>::const_iterator>(slice.cend());
>+  CheckType<absl::Span<int>::reverse_iterator>(slice.rend());
>+  EXPECT_TRUE(
>+      (std::is_convertible<decltype(slice.rend()),
>+                           absl::Span<int>::const_reverse_iterator>::value));
>+  CheckType<absl::Span<int>::const_reverse_iterator>(slice.crend());
>+  testing::StaticAssertTypeEq<int, absl::Span<int>::value_type>();
>+  testing::StaticAssertTypeEq<int, absl::Span<const int>::value_type>();
>+  testing::StaticAssertTypeEq<int*, absl::Span<int>::pointer>();
>+  testing::StaticAssertTypeEq<const int*, absl::Span<const int>::pointer>();
>+  testing::StaticAssertTypeEq<int&, absl::Span<int>::reference>();
>+  testing::StaticAssertTypeEq<const int&, absl::Span<const int>::reference>();
>+  testing::StaticAssertTypeEq<const int&, absl::Span<int>::const_reference>();
>+  testing::StaticAssertTypeEq<const int&,
>+                              absl::Span<const int>::const_reference>();
>+  EXPECT_EQ(static_cast<absl::Span<int>::size_type>(-1), absl::Span<int>::npos);
>+}
>+
>+TEST(IntSpan, IteratorsAndReferences) {
>+  auto accept_pointer = [](int*) {};
>+  auto accept_reference = [](int&) {};
>+  auto accept_iterator = [](absl::Span<int>::iterator) {};
>+  auto accept_const_iterator = [](absl::Span<int>::const_iterator) {};
>+  auto accept_reverse_iterator = [](absl::Span<int>::reverse_iterator) {};
>+  auto accept_const_reverse_iterator =
>+      [](absl::Span<int>::const_reverse_iterator) {};
>+
>+  int a[1];
>+  absl::Span<int> s = a;
>+
>+  accept_pointer(s.data());
>+  accept_iterator(s.begin());
>+  accept_const_iterator(s.begin());
>+  accept_const_iterator(s.cbegin());
>+  accept_iterator(s.end());
>+  accept_const_iterator(s.end());
>+  accept_const_iterator(s.cend());
>+  accept_reverse_iterator(s.rbegin());
>+  accept_const_reverse_iterator(s.rbegin());
>+  accept_const_reverse_iterator(s.crbegin());
>+  accept_reverse_iterator(s.rend());
>+  accept_const_reverse_iterator(s.rend());
>+  accept_const_reverse_iterator(s.crend());
>+
>+  accept_reference(s[0]);
>+  accept_reference(s.at(0));
>+  accept_reference(s.front());
>+  accept_reference(s.back());
>+}
>+
>+TEST(IntSpan, IteratorsAndReferences_Const) {
>+  auto accept_pointer = [](int*) {};
>+  auto accept_reference = [](int&) {};
>+  auto accept_iterator = [](absl::Span<int>::iterator) {};
>+  auto accept_const_iterator = [](absl::Span<int>::const_iterator) {};
>+  auto accept_reverse_iterator = [](absl::Span<int>::reverse_iterator) {};
>+  auto accept_const_reverse_iterator =
>+      [](absl::Span<int>::const_reverse_iterator) {};
>+
>+  int a[1];
>+  const absl::Span<int> s = a;
>+
>+  accept_pointer(s.data());
>+  accept_iterator(s.begin());
>+  accept_const_iterator(s.begin());
>+  accept_const_iterator(s.cbegin());
>+  accept_iterator(s.end());
>+  accept_const_iterator(s.end());
>+  accept_const_iterator(s.cend());
>+  accept_reverse_iterator(s.rbegin());
>+  accept_const_reverse_iterator(s.rbegin());
>+  accept_const_reverse_iterator(s.crbegin());
>+  accept_reverse_iterator(s.rend());
>+  accept_const_reverse_iterator(s.rend());
>+  accept_const_reverse_iterator(s.crend());
>+
>+  accept_reference(s[0]);
>+  accept_reference(s.at(0));
>+  accept_reference(s.front());
>+  accept_reference(s.back());
>+}
>+
>+TEST(IntSpan, NoexceptTest) {
>+  int a[] = {1, 2, 3};
>+  std::vector<int> v;
>+  EXPECT_TRUE(noexcept(absl::Span<const int>()));
>+  EXPECT_TRUE(noexcept(absl::Span<const int>(a, 2)));
>+  EXPECT_TRUE(noexcept(absl::Span<const int>(a)));
>+  EXPECT_TRUE(noexcept(absl::Span<const int>(v)));
>+  EXPECT_TRUE(noexcept(absl::Span<int>(v)));
>+  EXPECT_TRUE(noexcept(absl::Span<const int>({1, 2, 3})));
>+  EXPECT_TRUE(noexcept(absl::MakeSpan(v)));
>+  EXPECT_TRUE(noexcept(absl::MakeSpan(a)));
>+  EXPECT_TRUE(noexcept(absl::MakeSpan(a, 2)));
>+  EXPECT_TRUE(noexcept(absl::MakeSpan(a, a + 1)));
>+  EXPECT_TRUE(noexcept(absl::MakeConstSpan(v)));
>+  EXPECT_TRUE(noexcept(absl::MakeConstSpan(a)));
>+  EXPECT_TRUE(noexcept(absl::MakeConstSpan(a, 2)));
>+  EXPECT_TRUE(noexcept(absl::MakeConstSpan(a, a + 1)));
>+
>+  absl::Span<int> s(v);
>+  EXPECT_TRUE(noexcept(s.data()));
>+  EXPECT_TRUE(noexcept(s.size()));
>+  EXPECT_TRUE(noexcept(s.length()));
>+  EXPECT_TRUE(noexcept(s.empty()));
>+  EXPECT_TRUE(noexcept(s[0]));
>+  EXPECT_TRUE(noexcept(s.front()));
>+  EXPECT_TRUE(noexcept(s.back()));
>+  EXPECT_TRUE(noexcept(s.begin()));
>+  EXPECT_TRUE(noexcept(s.cbegin()));
>+  EXPECT_TRUE(noexcept(s.end()));
>+  EXPECT_TRUE(noexcept(s.cend()));
>+  EXPECT_TRUE(noexcept(s.rbegin()));
>+  EXPECT_TRUE(noexcept(s.crbegin()));
>+  EXPECT_TRUE(noexcept(s.rend()));
>+  EXPECT_TRUE(noexcept(s.crend()));
>+  EXPECT_TRUE(noexcept(s.remove_prefix(0)));
>+  EXPECT_TRUE(noexcept(s.remove_suffix(0)));
>+}
>+
>+// ConstexprTester exercises expressions in a constexpr context. Simply placing
>+// the expression in a constexpr function is not enough, as some compilers will
>+// simply compile the constexpr function as runtime code. Using template
>+// parameters forces compile-time execution.
>+template <int i>
>+struct ConstexprTester {};
>+
>+#define ABSL_TEST_CONSTEXPR(expr)                       \
>+  do {                                                  \
>+    ABSL_ATTRIBUTE_UNUSED ConstexprTester<(expr, 1)> t; \
>+  } while (0)
>+
>+struct ContainerWithConstexprMethods {
>+  constexpr int size() const { return 1; }
>+  constexpr const int* data() const { return &i; }
>+  const int i;
>+};
>+
>+TEST(ConstIntSpan, ConstexprTest) {
>+  static constexpr int a[] = {1, 2, 3};
>+  static constexpr int sized_arr[2] = {1, 2};
>+  static constexpr ContainerWithConstexprMethods c{1};
>+  ABSL_TEST_CONSTEXPR(absl::Span<const int>());
>+  ABSL_TEST_CONSTEXPR(absl::Span<const int>(a, 2));
>+  ABSL_TEST_CONSTEXPR(absl::Span<const int>(sized_arr));
>+  ABSL_TEST_CONSTEXPR(absl::Span<const int>(c));
>+  ABSL_TEST_CONSTEXPR(absl::MakeSpan(&a[0], 1));
>+  ABSL_TEST_CONSTEXPR(absl::MakeSpan(c));
>+  ABSL_TEST_CONSTEXPR(absl::MakeSpan(a));
>+  ABSL_TEST_CONSTEXPR(absl::MakeConstSpan(&a[0], 1));
>+  ABSL_TEST_CONSTEXPR(absl::MakeConstSpan(c));
>+  ABSL_TEST_CONSTEXPR(absl::MakeConstSpan(a));
>+
>+  constexpr absl::Span<const int> span = c;
>+  ABSL_TEST_CONSTEXPR(span.data());
>+  ABSL_TEST_CONSTEXPR(span.size());
>+  ABSL_TEST_CONSTEXPR(span.length());
>+  ABSL_TEST_CONSTEXPR(span.empty());
>+  ABSL_TEST_CONSTEXPR(span.begin());
>+  ABSL_TEST_CONSTEXPR(span.cbegin());
>+  ABSL_TEST_CONSTEXPR(span.subspan(0, 0));
>+  ABSL_TEST_CONSTEXPR(span[0]);
>+}
>+
>+struct BigStruct {
>+  char bytes[10000];
>+};
>+
>+TEST(Span, SpanSize) {
>+  EXPECT_LE(sizeof(absl::Span<int>), 2 * sizeof(void*));
>+  EXPECT_LE(sizeof(absl::Span<BigStruct>), 2 * sizeof(void*));
>+}
>+
>+}  // namespace
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..17e0634de03746433674e99ec077b6f773e8b2d9
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant.h
>@@ -0,0 +1,849 @@
>+// Copyright 2018 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// -----------------------------------------------------------------------------
>+// variant.h
>+// -----------------------------------------------------------------------------
>+//
>+// This header file defines an `absl::variant` type for holding a type-safe
>+// value of some prescribed set of types (noted as alternative types), and
>+// associated functions for managing variants.
>+//
>+// The `absl::variant` type is a form of type-safe union. An `absl::variant`
>+// should always hold a value of one of its alternative types (except in the
>+// "valueless by exception state" -- see below). A default-constructed
>+// `absl::variant` will hold the value of its first alternative type, provided
>+// it is default-constructable.
>+//
>+// In exceptional cases due to error, an `absl::variant` can hold no
>+// value (known as a "valueless by exception" state), though this is not the
>+// norm.
>+//
>+// As with `absl::optional`, an `absl::variant` -- when it holds a value --
>+// allocates a value of that type directly within the `variant` itself; it
>+// cannot hold a reference, array, or the type `void`; it can, however, hold a
>+// pointer to externally managed memory.
>+//
>+// `absl::variant` is a C++11 compatible version of the C++17 `std::variant`
>+// abstraction and is designed to be a drop-in replacement for code compliant
>+// with C++17.
>+
>+#ifndef ABSL_TYPES_VARIANT_H_
>+#define ABSL_TYPES_VARIANT_H_
>+
>+#include "absl/base/config.h"
>+#include "absl/utility/utility.h"
>+
>+#ifdef ABSL_HAVE_STD_VARIANT
>+
>+#include <variant>
>+
>+namespace absl {
>+using std::bad_variant_access;
>+using std::get;
>+using std::get_if;
>+using std::holds_alternative;
>+using std::monostate;
>+using std::variant;
>+using std::variant_alternative;
>+using std::variant_alternative_t;
>+using std::variant_npos;
>+using std::variant_size;
>+using std::variant_size_v;
>+using std::visit;
>+}  // namespace absl
>+
>+#else  // ABSL_HAVE_STD_VARIANT
>+
>+#include <functional>
>+#include <new>
>+#include <type_traits>
>+#include <utility>
>+
>+#include "absl/base/macros.h"
>+#include "absl/base/port.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/types/internal/variant.h"
>+
>+namespace absl {
>+
>+// -----------------------------------------------------------------------------
>+// absl::variant
>+// -----------------------------------------------------------------------------
>+//
>+// An 'absl::variant` type is a form of type-safe union. An `absl::variant` --
>+// except in exceptional cases -- always holds a value of one of its alternative
>+// types.
>+//
>+// Example:
>+//
>+//   // Construct a variant that holds either an integer or a std::string and
>+//   // assign it to a std::string.
>+//   absl::variant<int, std::string> v = std::string("abc");
>+//
>+//   // A default-contructed variant will hold a value-initialized value of
>+//   // the first alternative type.
>+//   auto a = absl::variant<int, std::string>();   // Holds an int of value '0'.
>+//
>+//   // variants are assignable.
>+//
>+//   // copy assignment
>+//   auto v1 = absl::variant<int, std::string>("abc");
>+//   auto v2 = absl::variant<int, std::string>(10);
>+//   v2 = v1;  // copy assign
>+//
>+//   // move assignment
>+//   auto v1 = absl::variant<int, std::string>("abc");
>+//   v1 = absl::variant<int, std::string>(10);
>+//
>+//   // assignment through type conversion
>+//   a = 128;         // variant contains int
>+//   a = "128";       // variant contains std::string
>+//
>+// An `absl::variant` holding a value of one of its alternative types `T` holds
>+// an allocation of `T` directly within the variant itself. An `absl::variant`
>+// is not allowed to allocate additional storage, such as dynamic memory, to
>+// allocate the contained value. The contained value shall be allocated in a
>+// region of the variant storage suitably aligned for all alternative types.
>+template <typename... Ts>
>+class variant;
>+
>+// swap()
>+//
>+// Swaps two `absl::variant` values. This function is equivalent to `v.swap(w)`
>+// where `v` and `w` are `absl::variant` types.
>+//
>+// Note that this function requires all alternative types to be both swappable
>+// and move-constructible, because any two variants may refer to either the same
>+// type (in which case, they will be swapped) or to two different types (in
>+// which case the values will need to be moved).
>+//
>+template <typename... Ts>
>+void swap(variant<Ts...>& v, variant<Ts...>& w) noexcept(noexcept(v.swap(w))) {
>+  v.swap(w);
>+}
>+
>+// variant_size
>+//
>+// Returns the number of alterative types available for a given `absl::variant`
>+// type as a compile-time constant expression. As this is a class template, it
>+// is not generally useful for accessing the number of alternative types of
>+// any given `absl::variant` instance.
>+//
>+// Example:
>+//
>+//   auto a = absl::variant<int, std::string>;
>+//   constexpr int num_types =
>+//       absl::variant_size<absl::variant<int, std::string>>();
>+//
>+//   // You can also use the member constant `value`.
>+//   constexpr int num_types =
>+//       absl::variant_size<absl::variant<int, std::string>>::value;
>+//
>+//   // `absl::variant_size` is more valuable for use in generic code:
>+//   template <typename Variant>
>+//   constexpr bool IsVariantMultivalue() {
>+//       return absl::variant_size<Variant>() > 1;
>+//   }
>+//
>+// Note that the set of cv-qualified specializations of `variant_size` are
>+// provided to ensure that those specializations compile (especially when passed
>+// within template logic).
>+template <class T>
>+struct variant_size;
>+
>+template <class... Ts>
>+struct variant_size<variant<Ts...>>
>+    : std::integral_constant<std::size_t, sizeof...(Ts)> {};
>+
>+// Specialization of `variant_size` for const qualified variants.
>+template <class T>
>+struct variant_size<const T> : variant_size<T>::type {};
>+
>+// Specialization of `variant_size` for volatile qualified variants.
>+template <class T>
>+struct variant_size<volatile T> : variant_size<T>::type {};
>+
>+// Specialization of `variant_size` for const volatile qualified variants.
>+template <class T>
>+struct variant_size<const volatile T> : variant_size<T>::type {};
>+
>+// variant_alternative
>+//
>+// Returns the alternative type for a given `absl::variant` at the passed
>+// index value as a compile-time constant expression. As this is a class
>+// template resulting in a type, it is not useful for access of the run-time
>+// value of any given `absl::variant` variable.
>+//
>+// Example:
>+//
>+//   // The type of the 0th alternative is "int".
>+//   using alternative_type_0
>+//     = absl::variant_alternative<0, absl::variant<int, std::string>>::type;
>+//
>+//   static_assert(std::is_same<alternative_type_0, int>::value, "");
>+//
>+//   // `absl::variant_alternative` is more valuable for use in generic code:
>+//   template <typename Variant>
>+//   constexpr bool IsFirstElementTrivial() {
>+//       return std::is_trivial_v<variant_alternative<0, Variant>::type>;
>+//   }
>+//
>+// Note that the set of cv-qualified specializations of `variant_alternative`
>+// are provided to ensure that those specializations compile (especially when
>+// passed within template logic).
>+template <std::size_t I, class T>
>+struct variant_alternative;
>+
>+template <std::size_t I, class... Types>
>+struct variant_alternative<I, variant<Types...>> {
>+  using type =
>+      variant_internal::VariantAlternativeSfinaeT<I, variant<Types...>>;
>+};
>+
>+// Specialization of `variant_alternative` for const qualified variants.
>+template <std::size_t I, class T>
>+struct variant_alternative<I, const T> {
>+  using type = const typename variant_alternative<I, T>::type;
>+};
>+
>+// Specialization of `variant_alternative` for volatile qualified variants.
>+template <std::size_t I, class T>
>+struct variant_alternative<I, volatile T> {
>+  using type = volatile typename variant_alternative<I, T>::type;
>+};
>+
>+// Specialization of `variant_alternative` for const volatile qualified
>+// variants.
>+template <std::size_t I, class T>
>+struct variant_alternative<I, const volatile T> {
>+  using type = const volatile typename variant_alternative<I, T>::type;
>+};
>+
>+// Template type alias for variant_alternative<I, T>::type.
>+//
>+// Example:
>+//
>+//   using alternative_type_0
>+//     = absl::variant_alternative_t<0, absl::variant<int, std::string>>;
>+//   static_assert(std::is_same<alternative_type_0, int>::value, "");
>+template <std::size_t I, class T>
>+using variant_alternative_t = typename variant_alternative<I, T>::type;
>+
>+// holds_alternative()
>+//
>+// Checks whether the given variant currently holds a given alternative type,
>+// returning `true` if so.
>+//
>+// Example:
>+//
>+//   absl::variant<int, std::string> foo = 42;
>+//   if (absl::holds_alternative<int>(foo)) {
>+//       std::cout << "The variant holds an integer";
>+//   }
>+template <class T, class... Types>
>+constexpr bool holds_alternative(const variant<Types...>& v) noexcept {
>+  static_assert(
>+      variant_internal::UnambiguousIndexOfImpl<variant<Types...>, T,
>+                                               0>::value != sizeof...(Types),
>+      "The type T must occur exactly once in Types...");
>+  return v.index() ==
>+         variant_internal::UnambiguousIndexOf<variant<Types...>, T>::value;
>+}
>+
>+// get()
>+//
>+// Returns a reference to the value currently within a given variant, using
>+// either a unique alternative type amongst the variant's set of alternative
>+// types, or the variant's index value. Attempting to get a variant's value
>+// using a type that is not unique within the variant's set of alternative types
>+// is a compile-time error. If the index of the alternative being specified is
>+// different from the index of the alternative that is currently stored, throws
>+// `absl::bad_variant_access`.
>+//
>+// Example:
>+//
>+//   auto a = absl::variant<int, std::string>;
>+//
>+//   // Get the value by type (if unique).
>+//   int i = absl::get<int>(a);
>+//
>+//   auto b = absl::variant<int, int>;
>+//
>+//   // Getting the value by a type that is not unique is ill-formed.
>+//   int j = absl::get<int>(b);     // Compile Error!
>+//
>+//   // Getting value by index not ambiguous and allowed.
>+//   int k = absl::get<1>(b);
>+
>+// Overload for getting a variant's lvalue by type.
>+template <class T, class... Types>
>+constexpr T& get(variant<Types...>& v) {  // NOLINT
>+  return variant_internal::VariantCoreAccess::CheckedAccess<
>+      variant_internal::IndexOf<T, Types...>::value>(v);
>+}
>+
>+// Overload for getting a variant's rvalue by type.
>+// Note: `absl::move()` is required to allow use of constexpr in C++11.
>+template <class T, class... Types>
>+constexpr T&& get(variant<Types...>&& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<
>+      variant_internal::IndexOf<T, Types...>::value>(absl::move(v));
>+}
>+
>+// Overload for getting a variant's const lvalue by type.
>+template <class T, class... Types>
>+constexpr const T& get(const variant<Types...>& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<
>+      variant_internal::IndexOf<T, Types...>::value>(v);
>+}
>+
>+// Overload for getting a variant's const rvalue by type.
>+// Note: `absl::move()` is required to allow use of constexpr in C++11.
>+template <class T, class... Types>
>+constexpr const T&& get(const variant<Types...>&& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<
>+      variant_internal::IndexOf<T, Types...>::value>(absl::move(v));
>+}
>+
>+// Overload for getting a variant's lvalue by index.
>+template <std::size_t I, class... Types>
>+constexpr variant_alternative_t<I, variant<Types...>>& get(
>+    variant<Types...>& v) {  // NOLINT
>+  return variant_internal::VariantCoreAccess::CheckedAccess<I>(v);
>+}
>+
>+// Overload for getting a variant's rvalue by index.
>+// Note: `absl::move()` is required to allow use of constexpr in C++11.
>+template <std::size_t I, class... Types>
>+constexpr variant_alternative_t<I, variant<Types...>>&& get(
>+    variant<Types...>&& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<I>(absl::move(v));
>+}
>+
>+// Overload for getting a variant's const lvalue by index.
>+template <std::size_t I, class... Types>
>+constexpr const variant_alternative_t<I, variant<Types...>>& get(
>+    const variant<Types...>& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<I>(v);
>+}
>+
>+// Overload for getting a variant's const rvalue by index.
>+// Note: `absl::move()` is required to allow use of constexpr in C++11.
>+template <std::size_t I, class... Types>
>+constexpr const variant_alternative_t<I, variant<Types...>>&& get(
>+    const variant<Types...>&& v) {
>+  return variant_internal::VariantCoreAccess::CheckedAccess<I>(absl::move(v));
>+}
>+
>+// get_if()
>+//
>+// Returns a pointer to the value currently stored within a given variant, if
>+// present, using either a unique alternative type amongst the variant's set of
>+// alternative types, or the variant's index value. If such a value does not
>+// exist, returns `nullptr`.
>+//
>+// As with `get`, attempting to get a variant's value using a type that is not
>+// unique within the variant's set of alternative types is a compile-time error.
>+
>+// Overload for getting a pointer to the value stored in the given variant by
>+// index.
>+template <std::size_t I, class... Types>
>+constexpr absl::add_pointer_t<variant_alternative_t<I, variant<Types...>>>
>+get_if(variant<Types...>* v) noexcept {
>+  return (v != nullptr && v->index() == I)
>+             ? std::addressof(
>+                   variant_internal::VariantCoreAccess::Access<I>(*v))
>+             : nullptr;
>+}
>+
>+// Overload for getting a pointer to the const value stored in the given
>+// variant by index.
>+template <std::size_t I, class... Types>
>+constexpr absl::add_pointer_t<const variant_alternative_t<I, variant<Types...>>>
>+get_if(const variant<Types...>* v) noexcept {
>+  return (v != nullptr && v->index() == I)
>+             ? std::addressof(
>+                   variant_internal::VariantCoreAccess::Access<I>(*v))
>+             : nullptr;
>+}
>+
>+// Overload for getting a pointer to the value stored in the given variant by
>+// type.
>+template <class T, class... Types>
>+constexpr absl::add_pointer_t<T> get_if(variant<Types...>* v) noexcept {
>+  return absl::get_if<variant_internal::IndexOf<T, Types...>::value>(v);
>+}
>+
>+// Overload for getting a pointer to the const value stored in the given variant
>+// by type.
>+template <class T, class... Types>
>+constexpr absl::add_pointer_t<const T> get_if(
>+    const variant<Types...>* v) noexcept {
>+  return absl::get_if<variant_internal::IndexOf<T, Types...>::value>(v);
>+}
>+
>+// visit()
>+//
>+// Calls a provided functor on a given set of variants. `absl::visit()` is
>+// commonly used to conditionally inspect the state of a given variant (or set
>+// of variants).
>+// Requires: The expression in the Effects: element shall be a valid expression
>+// of the same type and value category, for all combinations of alternative
>+// types of all variants. Otherwise, the program is ill-formed.
>+//
>+// Example:
>+//
>+//   // Define a visitor functor
>+//   struct GetVariant {
>+//       template<typename T>
>+//       void operator()(const T& i) const {
>+//         std::cout << "The variant's value is: " << i;
>+//       }
>+//   };
>+//
>+//   // Declare our variant, and call `absl::visit()` on it.
>+//   std::variant<int, std::string> foo = std::string("foo");
>+//   GetVariant visitor;
>+//   std::visit(visitor, foo);  // Prints `The variant's value is: foo'
>+template <typename Visitor, typename... Variants>
>+variant_internal::VisitResult<Visitor, Variants...> visit(Visitor&& vis,
>+                                                          Variants&&... vars) {
>+  return variant_internal::
>+      VisitIndices<variant_size<absl::decay_t<Variants> >::value...>::Run(
>+          variant_internal::PerformVisitation<Visitor, Variants...>{
>+              std::forward_as_tuple(absl::forward<Variants>(vars)...),
>+              absl::forward<Visitor>(vis)},
>+          vars.index()...);
>+}
>+
>+// monostate
>+//
>+// The monostate class serves as a first alternative type for a variant for
>+// which the first variant type is otherwise not default-constructible.
>+struct monostate {};
>+
>+// `absl::monostate` Relational Operators
>+
>+constexpr bool operator<(monostate, monostate) noexcept { return false; }
>+constexpr bool operator>(monostate, monostate) noexcept { return false; }
>+constexpr bool operator<=(monostate, monostate) noexcept { return true; }
>+constexpr bool operator>=(monostate, monostate) noexcept { return true; }
>+constexpr bool operator==(monostate, monostate) noexcept { return true; }
>+constexpr bool operator!=(monostate, monostate) noexcept { return false; }
>+
>+
>+//------------------------------------------------------------------------------
>+// `absl::variant` Template Definition
>+//------------------------------------------------------------------------------
>+template <typename T0, typename... Tn>
>+class variant<T0, Tn...> : private variant_internal::VariantBase<T0, Tn...> {
>+  static_assert(absl::conjunction<std::is_object<T0>,
>+                                  std::is_object<Tn>...>::value,
>+                "Attempted to instantiate a variant containing a non-object "
>+                "type.");
>+  // Intentionally not qualifing `negation` with `absl::` to work around a bug
>+  // in MSVC 2015 with inline namespace and variadic template.
>+  static_assert(absl::conjunction<negation<std::is_array<T0> >,
>+                                  negation<std::is_array<Tn> >...>::value,
>+                "Attempted to instantiate a variant containing an array type.");
>+  static_assert(absl::conjunction<std::is_nothrow_destructible<T0>,
>+                                  std::is_nothrow_destructible<Tn>...>::value,
>+                "Attempted to instantiate a variant containing a non-nothrow "
>+                "destructible type.");
>+
>+  friend struct variant_internal::VariantCoreAccess;
>+
>+ private:
>+  using Base = variant_internal::VariantBase<T0, Tn...>;
>+
>+ public:
>+  // Constructors
>+
>+  // Constructs a variant holding a default-initialized value of the first
>+  // alternative type.
>+  constexpr variant() /*noexcept(see 111above)*/ = default;
>+
>+  // Copy constructor, standard semantics
>+  variant(const variant& other) = default;
>+
>+  // Move constructor, standard semantics
>+  variant(variant&& other) /*noexcept(see above)*/ = default;
>+
>+  // Constructs a variant of an alternative type specified by overload
>+  // resolution of the provided forwarding arguments through
>+  // direct-initialization.
>+  //
>+  // Note: If the selected constructor is a constexpr constructor, this
>+  // constructor shall be a constexpr constructor.
>+  //
>+  // NOTE: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0608r1.html
>+  // has been voted passed the design phase in the C++ standard meeting in Mar
>+  // 2018. It will be implemented and integrated into `absl::variant`.
>+  template <
>+      class T,
>+      std::size_t I = std::enable_if<
>+          variant_internal::IsNeitherSelfNorInPlace<variant,
>+                                                    absl::decay_t<T>>::value,
>+          variant_internal::IndexOfConstructedType<variant, T>>::type::value,
>+      class Tj = absl::variant_alternative_t<I, variant>,
>+      absl::enable_if_t<std::is_constructible<Tj, T>::value>* =
>+          nullptr>
>+  constexpr variant(T&& t) noexcept(std::is_nothrow_constructible<Tj, T>::value)
>+      : Base(variant_internal::EmplaceTag<I>(), absl::forward<T>(t)) {}
>+
>+  // Constructs a variant of an alternative type from the arguments through
>+  // direct-initialization.
>+  //
>+  // Note: If the selected constructor is a constexpr constructor, this
>+  // constructor shall be a constexpr constructor.
>+  template <class T, class... Args,
>+            typename std::enable_if<std::is_constructible<
>+                variant_internal::UnambiguousTypeOfT<variant, T>,
>+                Args...>::value>::type* = nullptr>
>+  constexpr explicit variant(in_place_type_t<T>, Args&&... args)
>+      : Base(variant_internal::EmplaceTag<
>+                 variant_internal::UnambiguousIndexOf<variant, T>::value>(),
>+             absl::forward<Args>(args)...) {}
>+
>+  // Constructs a variant of an alternative type from an initializer list
>+  // and other arguments through direct-initialization.
>+  //
>+  // Note: If the selected constructor is a constexpr constructor, this
>+  // constructor shall be a constexpr constructor.
>+  template <class T, class U, class... Args,
>+            typename std::enable_if<std::is_constructible<
>+                variant_internal::UnambiguousTypeOfT<variant, T>,
>+                std::initializer_list<U>&, Args...>::value>::type* = nullptr>
>+  constexpr explicit variant(in_place_type_t<T>, std::initializer_list<U> il,
>+                             Args&&... args)
>+      : Base(variant_internal::EmplaceTag<
>+                 variant_internal::UnambiguousIndexOf<variant, T>::value>(),
>+             il, absl::forward<Args>(args)...) {}
>+
>+  // Constructs a variant of an alternative type from a provided index,
>+  // through value-initialization using the provided forwarded arguments.
>+  template <std::size_t I, class... Args,
>+            typename std::enable_if<std::is_constructible<
>+                variant_internal::VariantAlternativeSfinaeT<I, variant>,
>+                Args...>::value>::type* = nullptr>
>+  constexpr explicit variant(in_place_index_t<I>, Args&&... args)
>+      : Base(variant_internal::EmplaceTag<I>(), absl::forward<Args>(args)...) {}
>+
>+  // Constructs a variant of an alternative type from a provided index,
>+  // through value-initialization of an initializer list and the provided
>+  // forwarded arguments.
>+  template <std::size_t I, class U, class... Args,
>+            typename std::enable_if<std::is_constructible<
>+                variant_internal::VariantAlternativeSfinaeT<I, variant>,
>+                std::initializer_list<U>&, Args...>::value>::type* = nullptr>
>+  constexpr explicit variant(in_place_index_t<I>, std::initializer_list<U> il,
>+                             Args&&... args)
>+      : Base(variant_internal::EmplaceTag<I>(), il,
>+             absl::forward<Args>(args)...) {}
>+
>+  // Destructors
>+
>+  // Destroys the variant's currently contained value, provided that
>+  // `absl::valueless_by_exception()` is false.
>+  ~variant() = default;
>+
>+  // Assignment Operators
>+
>+  // Copy assignement operator
>+  variant& operator=(const variant& other) = default;
>+
>+  // Move assignment operator
>+  variant& operator=(variant&& other) /*noexcept(see above)*/ = default;
>+
>+  // Converting assignment operator
>+  //
>+  // NOTE: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0608r1.html
>+  // has been voted passed the design phase in the C++ standard meeting in Mar
>+  // 2018. It will be implemented and integrated into `absl::variant`.
>+  template <
>+      class T,
>+      std::size_t I = std::enable_if<
>+          !std::is_same<absl::decay_t<T>, variant>::value,
>+          variant_internal::IndexOfConstructedType<variant, T>>::type::value,
>+      class Tj = absl::variant_alternative_t<I, variant>,
>+      typename std::enable_if<std::is_assignable<Tj&, T>::value &&
>+                              std::is_constructible<Tj, T>::value>::type* =
>+          nullptr>
>+  variant& operator=(T&& t) noexcept(
>+      std::is_nothrow_assignable<Tj&, T>::value&&
>+          std::is_nothrow_constructible<Tj, T>::value) {
>+    variant_internal::VisitIndices<sizeof...(Tn) + 1>::Run(
>+        variant_internal::VariantCoreAccess::MakeConversionAssignVisitor(
>+            this, absl::forward<T>(t)),
>+        index());
>+
>+    return *this;
>+  }
>+
>+
>+  // emplace() Functions
>+
>+  // Constructs a value of the given alternative type T within the variant.
>+  //
>+  // Example:
>+  //
>+  //   absl::variant<std::vector<int>, int, std::string> v;
>+  //   v.emplace<int>(99);
>+  //   v.emplace<std::string>("abc");
>+  template <
>+      class T, class... Args,
>+      typename std::enable_if<std::is_constructible<
>+          absl::variant_alternative_t<
>+              variant_internal::UnambiguousIndexOf<variant, T>::value, variant>,
>+          Args...>::value>::type* = nullptr>
>+  T& emplace(Args&&... args) {
>+    return variant_internal::VariantCoreAccess::Replace<
>+        variant_internal::UnambiguousIndexOf<variant, T>::value>(
>+        this, absl::forward<Args>(args)...);
>+  }
>+
>+  // Constructs a value of the given alternative type T within the variant using
>+  // an initializer list.
>+  //
>+  // Example:
>+  //
>+  //   absl::variant<std::vector<int>, int, std::string> v;
>+  //   v.emplace<std::vector<int>>({0, 1, 2});
>+  template <
>+      class T, class U, class... Args,
>+      typename std::enable_if<std::is_constructible<
>+          absl::variant_alternative_t<
>+              variant_internal::UnambiguousIndexOf<variant, T>::value, variant>,
>+          std::initializer_list<U>&, Args...>::value>::type* = nullptr>
>+  T& emplace(std::initializer_list<U> il, Args&&... args) {
>+    return variant_internal::VariantCoreAccess::Replace<
>+        variant_internal::UnambiguousIndexOf<variant, T>::value>(
>+        this, il, absl::forward<Args>(args)...);
>+  }
>+
>+  // Destroys the current value of the variant (provided that
>+  // `absl::valueless_by_exception()` is false, and constructs a new value at
>+  // the given index.
>+  //
>+  // Example:
>+  //
>+  //   absl::variant<std::vector<int>, int, int> v;
>+  //   v.emplace<1>(99);
>+  //   v.emplace<2>(98);
>+  //   v.emplace<int>(99);  // Won't compile. 'int' isn't a unique type.
>+  template <std::size_t I, class... Args,
>+            typename std::enable_if<
>+                std::is_constructible<absl::variant_alternative_t<I, variant>,
>+                                      Args...>::value>::type* = nullptr>
>+  absl::variant_alternative_t<I, variant>& emplace(Args&&... args) {
>+    return variant_internal::VariantCoreAccess::Replace<I>(
>+        this, absl::forward<Args>(args)...);
>+  }
>+
>+  // Destroys the current value of the variant (provided that
>+  // `absl::valueless_by_exception()` is false, and constructs a new value at
>+  // the given index using an initializer list and the provided arguments.
>+  //
>+  // Example:
>+  //
>+  //   absl::variant<std::vector<int>, int, int> v;
>+  //   v.emplace<0>({0, 1, 2});
>+  template <std::size_t I, class U, class... Args,
>+            typename std::enable_if<std::is_constructible<
>+                absl::variant_alternative_t<I, variant>,
>+                std::initializer_list<U>&, Args...>::value>::type* = nullptr>
>+  absl::variant_alternative_t<I, variant>& emplace(std::initializer_list<U> il,
>+                                                   Args&&... args) {
>+    return variant_internal::VariantCoreAccess::Replace<I>(
>+        this, il, absl::forward<Args>(args)...);
>+  }
>+
>+  // variant::valueless_by_exception()
>+  //
>+  // Returns false if and only if the variant currently holds a valid value.
>+  constexpr bool valueless_by_exception() const noexcept {
>+    return this->index_ == absl::variant_npos;
>+  }
>+
>+  // variant::index()
>+  //
>+  // Returns the index value of the variant's currently selected alternative
>+  // type.
>+  constexpr std::size_t index() const noexcept { return this->index_; }
>+
>+  // variant::swap()
>+  //
>+  // Swaps the values of two variant objects.
>+  //
>+  // TODO(calabrese)
>+  //   `variant::swap()` and `swap()` rely on `std::is_(nothrow)_swappable()`
>+  //   which is introduced in C++17. So we assume `is_swappable()` is always
>+  //   true and `is_nothrow_swappable()` is same as `std::is_trivial()`.
>+  void swap(variant& rhs) noexcept(
>+      absl::conjunction<std::is_trivial<T0>, std::is_trivial<Tn>...>::value) {
>+    return variant_internal::VisitIndices<sizeof...(Tn) + 1>::Run(
>+        variant_internal::Swap<T0, Tn...>{this, &rhs}, rhs.index());
>+  }
>+};
>+
>+// We need a valid declaration of variant<> for SFINAE and overload resolution
>+// to work properly above, but we don't need a full declaration since this type
>+// will never be constructed. This declaration, though incomplete, suffices.
>+template <>
>+class variant<>;
>+
>+//------------------------------------------------------------------------------
>+// Relational Operators
>+//------------------------------------------------------------------------------
>+//
>+// If neither operand is in the `variant::valueless_by_exception` state:
>+//
>+//   * If the index of both variants is the same, the relational operator
>+//     returns the result of the corresponding relational operator for the
>+//     corresponding alternative type.
>+//   * If the index of both variants is not the same, the relational operator
>+//     returns the result of that operation applied to the value of the left
>+//     operand's index and the value of the right operand's index.
>+//   * If at least one operand is in the valueless_by_exception state:
>+//     - A variant in the valueless_by_exception state is only considered equal
>+//       to another variant in the valueless_by_exception state.
>+//     - If exactly one operand is in the valueless_by_exception state, the
>+//       variant in the valueless_by_exception state is less than the variant
>+//       that is not in the valueless_by_exception state.
>+//
>+// Note: The value 1 is added to each index in the relational comparisons such
>+// that the index corresponding to the valueless_by_exception state wraps around
>+// to 0 (the lowest value for the index type), and the remaining indices stay in
>+// the same relative order.
>+
>+// Equal-to operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveEqualT<Types...> operator==(
>+    const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() == b.index()) &&
>+         variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+             variant_internal::EqualsOp<Types...>{&a, &b}, a.index());
>+}
>+
>+// Not equal operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveNotEqualT<Types...> operator!=(
>+    const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() != b.index()) ||
>+         variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+             variant_internal::NotEqualsOp<Types...>{&a, &b}, a.index());
>+}
>+
>+// Less-than operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveLessThanT<Types...> operator<(
>+    const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() != b.index())
>+             ? (a.index() + 1) < (b.index() + 1)
>+             : variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+                   variant_internal::LessThanOp<Types...>{&a, &b}, a.index());
>+}
>+
>+// Greater-than operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveGreaterThanT<Types...> operator>(
>+    const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() != b.index())
>+             ? (a.index() + 1) > (b.index() + 1)
>+             : variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+                   variant_internal::GreaterThanOp<Types...>{&a, &b},
>+                   a.index());
>+}
>+
>+// Less-than or equal-to operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveLessThanOrEqualT<Types...> operator<=(
>+    const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() != b.index())
>+             ? (a.index() + 1) < (b.index() + 1)
>+             : variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+                   variant_internal::LessThanOrEqualsOp<Types...>{&a, &b},
>+                   a.index());
>+}
>+
>+// Greater-than or equal-to operator
>+template <typename... Types>
>+constexpr variant_internal::RequireAllHaveGreaterThanOrEqualT<Types...>
>+operator>=(const variant<Types...>& a, const variant<Types...>& b) {
>+  return (a.index() != b.index())
>+             ? (a.index() + 1) > (b.index() + 1)
>+             : variant_internal::VisitIndices<sizeof...(Types)>::Run(
>+                   variant_internal::GreaterThanOrEqualsOp<Types...>{&a, &b},
>+                   a.index());
>+}
>+
>+}  // namespace absl
>+
>+namespace std {
>+
>+// hash()
>+template <>  // NOLINT
>+struct hash<absl::monostate> {
>+  std::size_t operator()(absl::monostate) const { return 0; }
>+};
>+
>+template <class... T>  // NOLINT
>+struct hash<absl::variant<T...>>
>+    : absl::variant_internal::VariantHashBase<absl::variant<T...>, void,
>+                                              absl::remove_const_t<T>...> {};
>+
>+}  // namespace std
>+
>+#endif  // ABSL_HAVE_STD_VARIANT
>+
>+namespace absl {
>+namespace variant_internal {
>+
>+// Helper visitor for converting a variant<Ts...>` into another type (mostly
>+// variant) that can be constructed from any type.
>+template <typename To>
>+struct ConversionVisitor {
>+  template <typename T>
>+  To operator()(T&& v) const {
>+    return To(std::forward<T>(v));
>+  }
>+};
>+
>+}  // namespace variant_internal
>+
>+// ConvertVariantTo()
>+//
>+// Helper functions to convert an `absl::variant` to a variant of another set of
>+// types, provided that the alternative type of the new variant type can be
>+// converted from any type in the source variant.
>+//
>+// Example:
>+//
>+//   absl::variant<name1, name2, float> InternalReq(const Req&);
>+//
>+//   // name1 and name2 are convertible to name
>+//   absl::variant<name, float> ExternalReq(const Req& req) {
>+//     return absl::ConvertVariantTo<absl::variant<name, float>>(
>+//              InternalReq(req));
>+//   }
>+template <typename To, typename Variant>
>+To ConvertVariantTo(Variant&& variant) {
>+  return absl::visit(variant_internal::ConversionVisitor<To>{},
>+                     std::forward<Variant>(variant));
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_TYPES_VARIANT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_benchmark.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_benchmark.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..99658ac70c46438023a51ca3304812faa2707efd
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_benchmark.cc
>@@ -0,0 +1,220 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit tests for the variant template. The 'is' and 'IsEmpty' methods
>+// of variant are not explicitly tested because they are used repeatedly
>+// in building other tests. All other public variant methods should have
>+// explicit tests.
>+
>+#include "absl/types/variant.h"
>+
>+#include <cstddef>
>+#include <cstdlib>
>+#include <string>
>+#include <tuple>
>+
>+#include "benchmark/benchmark.h"
>+#include "absl/utility/utility.h"
>+
>+namespace absl {
>+namespace {
>+
>+template <std::size_t I>
>+struct VariantAlternative {
>+  char member;
>+};
>+
>+template <class Indices>
>+struct VariantOfAlternativesImpl;
>+
>+template <std::size_t... Indices>
>+struct VariantOfAlternativesImpl<absl::index_sequence<Indices...>> {
>+  using type = absl::variant<VariantAlternative<Indices>...>;
>+};
>+
>+template <std::size_t NumAlternatives>
>+using VariantOfAlternatives = typename VariantOfAlternativesImpl<
>+    absl::make_index_sequence<NumAlternatives>>::type;
>+
>+struct Empty {};
>+
>+template <class... T>
>+void Ignore(T...) noexcept {}
>+
>+template <class T>
>+Empty DoNotOptimizeAndReturnEmpty(T&& arg) noexcept {
>+  benchmark::DoNotOptimize(arg);
>+  return {};
>+}
>+
>+struct VisitorApplier {
>+  struct Visitor {
>+    template <class... T>
>+    void operator()(T&&... args) const noexcept {
>+      Ignore(DoNotOptimizeAndReturnEmpty(args)...);
>+    }
>+  };
>+
>+  template <class... Vars>
>+  void operator()(const Vars&... vars) const noexcept {
>+    absl::visit(Visitor(), vars...);
>+  }
>+};
>+
>+template <std::size_t NumIndices, std::size_t CurrIndex = NumIndices - 1>
>+struct MakeWithIndex {
>+  using Variant = VariantOfAlternatives<NumIndices>;
>+
>+  static Variant Run(std::size_t index) {
>+    return index == CurrIndex
>+               ? Variant(absl::in_place_index_t<CurrIndex>())
>+               : MakeWithIndex<NumIndices, CurrIndex - 1>::Run(index);
>+  }
>+};
>+
>+template <std::size_t NumIndices>
>+struct MakeWithIndex<NumIndices, 0> {
>+  using Variant = VariantOfAlternatives<NumIndices>;
>+
>+  static Variant Run(std::size_t /*index*/) { return Variant(); }
>+};
>+
>+template <std::size_t NumIndices, class Dimensions>
>+struct MakeVariantTuple;
>+
>+template <class T, std::size_t /*I*/>
>+using always_t = T;
>+
>+template <std::size_t NumIndices>
>+VariantOfAlternatives<NumIndices> MakeVariant(std::size_t dimension,
>+                                              std::size_t index) {
>+  return dimension == 0
>+             ? MakeWithIndex<NumIndices>::Run(index % NumIndices)
>+             : MakeVariant<NumIndices>(dimension - 1, index / NumIndices);
>+}
>+
>+template <std::size_t NumIndices, std::size_t... Dimensions>
>+struct MakeVariantTuple<NumIndices, absl::index_sequence<Dimensions...>> {
>+  using VariantTuple =
>+      std::tuple<always_t<VariantOfAlternatives<NumIndices>, Dimensions>...>;
>+
>+  static VariantTuple Run(int index) {
>+    return std::make_tuple(MakeVariant<NumIndices>(Dimensions, index)...);
>+  }
>+};
>+
>+constexpr std::size_t integral_pow(std::size_t base, std::size_t power) {
>+  return power == 0 ? 1 : base * integral_pow(base, power - 1);
>+}
>+
>+template <std::size_t End, std::size_t I = 0>
>+struct VisitTestBody {
>+  template <class Vars, class State>
>+  static bool Run(Vars& vars, State& state) {
>+    if (state.KeepRunning()) {
>+      absl::apply(VisitorApplier(), vars[I]);
>+      return VisitTestBody<End, I + 1>::Run(vars, state);
>+    }
>+    return false;
>+  }
>+};
>+
>+template <std::size_t End>
>+struct VisitTestBody<End, End> {
>+  template <class Vars, class State>
>+  static bool Run(Vars& /*vars*/, State& /*state*/) {
>+    return true;
>+  }
>+};
>+
>+// Visit operations where branch prediction is likely to give a boost.
>+template <std::size_t NumIndices, std::size_t NumDimensions = 1>
>+void BM_RedundantVisit(benchmark::State& state) {
>+  auto vars =
>+      MakeVariantTuple<NumIndices, absl::make_index_sequence<NumDimensions>>::
>+          Run(static_cast<std::size_t>(state.range(0)));
>+
>+  for (auto _ : state) {  // NOLINT
>+    benchmark::DoNotOptimize(vars);
>+    absl::apply(VisitorApplier(), vars);
>+  }
>+}
>+
>+// Visit operations where branch prediction is unlikely to give a boost.
>+template <std::size_t NumIndices, std::size_t NumDimensions = 1>
>+void BM_Visit(benchmark::State& state) {
>+  constexpr std::size_t num_possibilities =
>+      integral_pow(NumIndices, NumDimensions);
>+
>+  using VariantTupleMaker =
>+      MakeVariantTuple<NumIndices, absl::make_index_sequence<NumDimensions>>;
>+  using Tuple = typename VariantTupleMaker::VariantTuple;
>+
>+  Tuple vars[num_possibilities];
>+  for (std::size_t i = 0; i < num_possibilities; ++i)
>+    vars[i] = VariantTupleMaker::Run(i);
>+
>+  while (VisitTestBody<num_possibilities>::Run(vars, state)) {
>+  }
>+}
>+
>+// Visitation
>+//   Each visit is on a different variant with a different active alternative)
>+
>+// Unary visit
>+BENCHMARK_TEMPLATE(BM_Visit, 1);
>+BENCHMARK_TEMPLATE(BM_Visit, 2);
>+BENCHMARK_TEMPLATE(BM_Visit, 3);
>+BENCHMARK_TEMPLATE(BM_Visit, 4);
>+BENCHMARK_TEMPLATE(BM_Visit, 5);
>+BENCHMARK_TEMPLATE(BM_Visit, 6);
>+BENCHMARK_TEMPLATE(BM_Visit, 7);
>+BENCHMARK_TEMPLATE(BM_Visit, 8);
>+BENCHMARK_TEMPLATE(BM_Visit, 16);
>+BENCHMARK_TEMPLATE(BM_Visit, 32);
>+BENCHMARK_TEMPLATE(BM_Visit, 64);
>+
>+// Binary visit
>+BENCHMARK_TEMPLATE(BM_Visit, 1, 2);
>+BENCHMARK_TEMPLATE(BM_Visit, 2, 2);
>+BENCHMARK_TEMPLATE(BM_Visit, 3, 2);
>+BENCHMARK_TEMPLATE(BM_Visit, 4, 2);
>+BENCHMARK_TEMPLATE(BM_Visit, 5, 2);
>+
>+// Ternary visit
>+BENCHMARK_TEMPLATE(BM_Visit, 1, 3);
>+BENCHMARK_TEMPLATE(BM_Visit, 2, 3);
>+BENCHMARK_TEMPLATE(BM_Visit, 3, 3);
>+
>+// Quaternary visit
>+BENCHMARK_TEMPLATE(BM_Visit, 1, 4);
>+BENCHMARK_TEMPLATE(BM_Visit, 2, 4);
>+
>+// Redundant Visitation
>+//   Each visit consistently has the same alternative active
>+
>+// Unary visit
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 1)->Arg(0);
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 2)->DenseRange(0, 1);
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 8)->DenseRange(0, 7);
>+
>+// Binary visit
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 1, 2)->Arg(0);
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 2, 2)
>+    ->DenseRange(0, integral_pow(2, 2) - 1);
>+BENCHMARK_TEMPLATE(BM_RedundantVisit, 4, 2)
>+    ->DenseRange(0, integral_pow(4, 2) - 1);
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_exception_safety_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_exception_safety_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..27c0b96ca6f340850b0251bc6e916d37cdf11645
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_exception_safety_test.cc
>@@ -0,0 +1,508 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+#include "absl/types/variant.h"
>+
>+#include <iostream>
>+#include <memory>
>+#include <utility>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/internal/exception_safety_testing.h"
>+#include "absl/memory/memory.h"
>+
>+namespace absl {
>+namespace {
>+
>+using ::testing::MakeExceptionSafetyTester;
>+using ::testing::strong_guarantee;
>+using ::testing::TestNothrowOp;
>+using ::testing::TestThrowingCtor;
>+
>+using Thrower = testing::ThrowingValue<>;
>+using CopyNothrow = testing::ThrowingValue<testing::TypeSpec::kNoThrowCopy>;
>+using MoveNothrow = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
>+using ThrowingAlloc = testing::ThrowingAllocator<Thrower>;
>+using ThrowerVec = std::vector<Thrower, ThrowingAlloc>;
>+using ThrowingVariant =
>+    absl::variant<Thrower, CopyNothrow, MoveNothrow, ThrowerVec>;
>+
>+struct ConversionException {};
>+
>+template <class T>
>+struct ExceptionOnConversion {
>+  operator T() const {  // NOLINT
>+    throw ConversionException();
>+  }
>+};
>+
>+// Forces a variant into the valueless by exception state.
>+void ToValuelessByException(ThrowingVariant& v) {  // NOLINT
>+  try {
>+    v.emplace<Thrower>();
>+    v.emplace<Thrower>(ExceptionOnConversion<Thrower>());
>+  } catch (ConversionException& /*e*/) {
>+    // This space intentionally left blank.
>+  }
>+}
>+
>+// Check that variant is still in a usable state after an exception is thrown.
>+testing::AssertionResult CheckInvariants(ThrowingVariant* v) {
>+  using testing::AssertionFailure;
>+  using testing::AssertionSuccess;
>+
>+  // Try using the active alternative
>+  if (absl::holds_alternative<Thrower>(*v)) {
>+    auto& t = absl::get<Thrower>(*v);
>+    t = Thrower{-100};
>+    if (t.Get() != -100) {
>+      return AssertionFailure() << "Thrower should be assigned -100";
>+    }
>+  } else if (absl::holds_alternative<ThrowerVec>(*v)) {
>+    auto& tv = absl::get<ThrowerVec>(*v);
>+    tv.clear();
>+    tv.emplace_back(-100);
>+    if (tv.size() != 1 || tv[0].Get() != -100) {
>+      return AssertionFailure() << "ThrowerVec should be {Thrower{-100}}";
>+    }
>+  } else if (absl::holds_alternative<CopyNothrow>(*v)) {
>+    auto& t = absl::get<CopyNothrow>(*v);
>+    t = CopyNothrow{-100};
>+    if (t.Get() != -100) {
>+      return AssertionFailure() << "CopyNothrow should be assigned -100";
>+    }
>+  } else if (absl::holds_alternative<MoveNothrow>(*v)) {
>+    auto& t = absl::get<MoveNothrow>(*v);
>+    t = MoveNothrow{-100};
>+    if (t.Get() != -100) {
>+      return AssertionFailure() << "MoveNothrow should be assigned -100";
>+    }
>+  }
>+
>+  // Try making variant valueless_by_exception
>+  if (!v->valueless_by_exception()) ToValuelessByException(*v);
>+  if (!v->valueless_by_exception()) {
>+    return AssertionFailure() << "Variant should be valueless_by_exception";
>+  }
>+  try {
>+    auto unused = absl::get<Thrower>(*v);
>+    static_cast<void>(unused);
>+    return AssertionFailure() << "Variant should not contain Thrower";
>+  } catch (absl::bad_variant_access) {
>+  } catch (...) {
>+    return AssertionFailure() << "Unexpected exception throw from absl::get";
>+  }
>+
>+  // Try using the variant
>+  v->emplace<Thrower>(100);
>+  if (!absl::holds_alternative<Thrower>(*v) ||
>+      absl::get<Thrower>(*v) != Thrower(100)) {
>+    return AssertionFailure() << "Variant should contain Thrower(100)";
>+  }
>+  v->emplace<ThrowerVec>({Thrower(100)});
>+  if (!absl::holds_alternative<ThrowerVec>(*v) ||
>+      absl::get<ThrowerVec>(*v)[0] != Thrower(100)) {
>+    return AssertionFailure()
>+           << "Variant should contain ThrowerVec{Thrower(100)}";
>+  }
>+  return AssertionSuccess();
>+}
>+
>+template <typename... Args>
>+Thrower ExpectedThrower(Args&&... args) {
>+  return Thrower(42, args...);
>+}
>+
>+ThrowerVec ExpectedThrowerVec() { return {Thrower(100), Thrower(200)}; }
>+ThrowingVariant ValuelessByException() {
>+  ThrowingVariant v;
>+  ToValuelessByException(v);
>+  return v;
>+}
>+ThrowingVariant WithThrower() { return Thrower(39); }
>+ThrowingVariant WithThrowerVec() {
>+  return ThrowerVec{Thrower(1), Thrower(2), Thrower(3)};
>+}
>+ThrowingVariant WithCopyNoThrow() { return CopyNothrow(39); }
>+ThrowingVariant WithMoveNoThrow() { return MoveNothrow(39); }
>+
>+TEST(VariantExceptionSafetyTest, DefaultConstructor) {
>+  TestThrowingCtor<ThrowingVariant>();
>+}
>+
>+TEST(VariantExceptionSafetyTest, CopyConstructor) {
>+  {
>+    ThrowingVariant v(ExpectedThrower());
>+    TestThrowingCtor<ThrowingVariant>(v);
>+  }
>+  {
>+    ThrowingVariant v(ExpectedThrowerVec());
>+    TestThrowingCtor<ThrowingVariant>(v);
>+  }
>+  {
>+    ThrowingVariant v(ValuelessByException());
>+    TestThrowingCtor<ThrowingVariant>(v);
>+  }
>+}
>+
>+TEST(VariantExceptionSafetyTest, MoveConstructor) {
>+  {
>+    ThrowingVariant v(ExpectedThrower());
>+    TestThrowingCtor<ThrowingVariant>(std::move(v));
>+  }
>+  {
>+    ThrowingVariant v(ExpectedThrowerVec());
>+    TestThrowingCtor<ThrowingVariant>(std::move(v));
>+  }
>+  {
>+    ThrowingVariant v(ValuelessByException());
>+    TestThrowingCtor<ThrowingVariant>(std::move(v));
>+  }
>+}
>+
>+TEST(VariantExceptionSafetyTest, ValueConstructor) {
>+  TestThrowingCtor<ThrowingVariant>(ExpectedThrower());
>+  TestThrowingCtor<ThrowingVariant>(ExpectedThrowerVec());
>+}
>+
>+TEST(VariantExceptionSafetyTest, InPlaceTypeConstructor) {
>+  TestThrowingCtor<ThrowingVariant>(absl::in_place_type_t<Thrower>{},
>+                                    ExpectedThrower());
>+  TestThrowingCtor<ThrowingVariant>(absl::in_place_type_t<ThrowerVec>{},
>+                                    ExpectedThrowerVec());
>+}
>+
>+TEST(VariantExceptionSafetyTest, InPlaceIndexConstructor) {
>+  TestThrowingCtor<ThrowingVariant>(absl::in_place_index_t<0>{},
>+                                    ExpectedThrower());
>+  TestThrowingCtor<ThrowingVariant>(absl::in_place_index_t<3>{},
>+                                    ExpectedThrowerVec());
>+}
>+
>+TEST(VariantExceptionSafetyTest, CopyAssign) {
>+  // variant& operator=(const variant& rhs);
>+  // Let j be rhs.index()
>+  {
>+    // - neither *this nor rhs holds a value
>+    const ThrowingVariant rhs = ValuelessByException();
>+    ThrowingVariant lhs = ValuelessByException();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = rhs; }));
>+  }
>+  {
>+    // - *this holds a value but rhs does not
>+    const ThrowingVariant rhs = ValuelessByException();
>+    ThrowingVariant lhs = WithThrower();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = rhs; }));
>+  }
>+  // - index() == j
>+  {
>+    const ThrowingVariant rhs(ExpectedThrower());
>+    auto tester =
>+        MakeExceptionSafetyTester()
>+            .WithInitialValue(WithThrower())
>+            .WithOperation([&rhs](ThrowingVariant* lhs) { *lhs = rhs; });
>+    EXPECT_TRUE(tester.WithInvariants(CheckInvariants).Test());
>+    EXPECT_FALSE(tester.WithInvariants(strong_guarantee).Test());
>+  }
>+  {
>+    const ThrowingVariant rhs(ExpectedThrowerVec());
>+    auto tester =
>+        MakeExceptionSafetyTester()
>+            .WithInitialValue(WithThrowerVec())
>+            .WithOperation([&rhs](ThrowingVariant* lhs) { *lhs = rhs; });
>+    EXPECT_TRUE(tester.WithInvariants(CheckInvariants).Test());
>+    EXPECT_FALSE(tester.WithInvariants(strong_guarantee).Test());
>+  }
>+  // libstdc++ std::variant has bugs on copy assignment regarding exception
>+  // safety.
>+#if !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+  // index() != j
>+  // if is_nothrow_copy_constructible_v<Tj> or
>+  // !is_nothrow_move_constructible<Tj> is true, equivalent to
>+  // emplace<j>(get<j>(rhs))
>+  {
>+    // is_nothrow_copy_constructible_v<Tj> == true
>+    // should not throw because emplace() invokes Tj's copy ctor
>+    // which should not throw.
>+    const ThrowingVariant rhs(CopyNothrow{});
>+    ThrowingVariant lhs = WithThrower();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = rhs; }));
>+  }
>+  {
>+    // is_nothrow_copy_constructible<Tj> == false &&
>+    // is_nothrow_move_constructible<Tj> == false
>+    // should provide basic guarantee because emplace() invokes Tj's copy ctor
>+    // which may throw.
>+    const ThrowingVariant rhs(ExpectedThrower());
>+    auto tester =
>+        MakeExceptionSafetyTester()
>+            .WithInitialValue(WithCopyNoThrow())
>+            .WithOperation([&rhs](ThrowingVariant* lhs) { *lhs = rhs; });
>+    EXPECT_TRUE(tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return lhs->valueless_by_exception();
>+                                    })
>+                    .Test());
>+    EXPECT_FALSE(tester.WithInvariants(strong_guarantee).Test());
>+  }
>+#endif  // !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+  {
>+    // is_nothrow_copy_constructible_v<Tj> == false &&
>+    // is_nothrow_move_constructible_v<Tj> == true
>+    // should provide strong guarantee because it is equivalent to
>+    // operator=(variant(rhs)) which creates a temporary then invoke the move
>+    // ctor which shouldn't throw.
>+    const ThrowingVariant rhs(MoveNothrow{});
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithThrower())
>+                    .WithInvariants(CheckInvariants, strong_guarantee)
>+                    .Test([&rhs](ThrowingVariant* lhs) { *lhs = rhs; }));
>+  }
>+}
>+
>+TEST(VariantExceptionSafetyTest, MoveAssign) {
>+  // variant& operator=(variant&& rhs);
>+  // Let j be rhs.index()
>+  {
>+    // - neither *this nor rhs holds a value
>+    ThrowingVariant rhs = ValuelessByException();
>+    ThrowingVariant lhs = ValuelessByException();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = std::move(rhs); }));
>+  }
>+  {
>+    // - *this holds a value but rhs does not
>+    ThrowingVariant rhs = ValuelessByException();
>+    ThrowingVariant lhs = WithThrower();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = std::move(rhs); }));
>+  }
>+  {
>+    // - index() == j
>+    // assign get<j>(std::move(rhs)) to the value contained in *this.
>+    // If an exception is thrown during call to Tj's move assignment, the state
>+    // of the contained value is as defined by the exception safety guarantee of
>+    // Tj's move assignment; index() will be j.
>+    ThrowingVariant rhs(ExpectedThrower());
>+    size_t j = rhs.index();
>+    // Since Thrower's move assignment has basic guarantee, so should variant's.
>+    auto tester = MakeExceptionSafetyTester()
>+                      .WithInitialValue(WithThrower())
>+                      .WithOperation([&](ThrowingVariant* lhs) {
>+                        auto copy = rhs;
>+                        *lhs = std::move(copy);
>+                      });
>+    EXPECT_TRUE(tester
>+                    .WithInvariants(
>+                        CheckInvariants,
>+                        [&](ThrowingVariant* lhs) { return lhs->index() == j; })
>+                    .Test());
>+    EXPECT_FALSE(tester.WithInvariants(strong_guarantee).Test());
>+  }
>+  {
>+    // - otherwise (index() != j), equivalent to
>+    // emplace<j>(get<j>(std::move(rhs)))
>+    // - If an exception is thrown during the call to Tj's move construction
>+    // (with j being rhs.index()), the variant will hold no value.
>+    ThrowingVariant rhs(CopyNothrow{});
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithThrower())
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return lhs->valueless_by_exception();
>+                                    })
>+                    .Test([&](ThrowingVariant* lhs) {
>+                      auto copy = rhs;
>+                      *lhs = std::move(copy);
>+                    }));
>+  }
>+}
>+
>+TEST(VariantExceptionSafetyTest, ValueAssign) {
>+  // template<class T> variant& operator=(T&& t);
>+  // Let Tj be the type that is selected by overload resolution to be assigned.
>+  {
>+    // If *this holds a Tj, assigns std::forward<T>(t) to the value contained in
>+    // *this. If  an exception is thrown during the assignment of
>+    // std::forward<T>(t) to the value contained in *this, the state of the
>+    // contained value and t are as defined by the exception safety guarantee of
>+    // the assignment expression; valueless_by_exception() will be false.
>+    // Since Thrower's copy/move assignment has basic guarantee, so should
>+    // variant's.
>+    Thrower rhs = ExpectedThrower();
>+    // copy assign
>+    auto copy_tester =
>+        MakeExceptionSafetyTester()
>+            .WithInitialValue(WithThrower())
>+            .WithOperation([rhs](ThrowingVariant* lhs) { *lhs = rhs; });
>+    EXPECT_TRUE(copy_tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return !lhs->valueless_by_exception();
>+                                    })
>+                    .Test());
>+    EXPECT_FALSE(copy_tester.WithInvariants(strong_guarantee).Test());
>+    // move assign
>+    auto move_tester = MakeExceptionSafetyTester()
>+                           .WithInitialValue(WithThrower())
>+                           .WithOperation([&](ThrowingVariant* lhs) {
>+                             auto copy = rhs;
>+                             *lhs = std::move(copy);
>+                           });
>+    EXPECT_TRUE(move_tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return !lhs->valueless_by_exception();
>+                                    })
>+                    .Test());
>+
>+    EXPECT_FALSE(move_tester.WithInvariants(strong_guarantee).Test());
>+  }
>+  // Otherwise (*this holds something else), if is_nothrow_constructible_v<Tj,
>+  // T> || !is_nothrow_move_constructible_v<Tj> is true, equivalent to
>+  // emplace<j>(std::forward<T>(t)).
>+  // We simplify the test by letting T = `const Tj&`  or `Tj&&`, so we can reuse
>+  // the CopyNothrow and MoveNothrow types.
>+
>+  // if is_nothrow_constructible_v<Tj, T>
>+  // (i.e. is_nothrow_copy/move_constructible_v<Tj>) is true, emplace() just
>+  // invokes the copy/move constructor and it should not throw.
>+  {
>+    const CopyNothrow rhs;
>+    ThrowingVariant lhs = WithThrower();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = rhs; }));
>+  }
>+  {
>+    MoveNothrow rhs;
>+    ThrowingVariant lhs = WithThrower();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs = std::move(rhs); }));
>+  }
>+  // if is_nothrow_constructible_v<Tj, T> == false &&
>+  // is_nothrow_move_constructible<Tj> == false
>+  // emplace() invokes the copy/move constructor which may throw so it should
>+  // provide basic guarantee and variant object might not hold a value.
>+  {
>+    Thrower rhs = ExpectedThrower();
>+    // copy
>+    auto copy_tester =
>+        MakeExceptionSafetyTester()
>+            .WithInitialValue(WithCopyNoThrow())
>+            .WithOperation([&rhs](ThrowingVariant* lhs) { *lhs = rhs; });
>+    EXPECT_TRUE(copy_tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return lhs->valueless_by_exception();
>+                                    })
>+                    .Test());
>+    EXPECT_FALSE(copy_tester.WithInvariants(strong_guarantee).Test());
>+    // move
>+    auto move_tester = MakeExceptionSafetyTester()
>+                           .WithInitialValue(WithCopyNoThrow())
>+                           .WithOperation([](ThrowingVariant* lhs) {
>+                             *lhs = ExpectedThrower(testing::nothrow_ctor);
>+                           });
>+    EXPECT_TRUE(move_tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* lhs) {
>+                                      return lhs->valueless_by_exception();
>+                                    })
>+                    .Test());
>+    EXPECT_FALSE(move_tester.WithInvariants(strong_guarantee).Test());
>+  }
>+  // Otherwise (if is_nothrow_constructible_v<Tj, T> == false &&
>+  // is_nothrow_move_constructible<Tj> == true),
>+  // equivalent to operator=(variant(std::forward<T>(t)))
>+  // This should have strong guarantee because it creates a temporary variant
>+  // and operator=(variant&&) invokes Tj's move ctor which doesn't throw.
>+  // libstdc++ std::variant has bugs on conversion assignment regarding
>+  // exception safety.
>+#if !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+  {
>+    MoveNothrow rhs;
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithThrower())
>+                    .WithInvariants(CheckInvariants, strong_guarantee)
>+                    .Test([&rhs](ThrowingVariant* lhs) { *lhs = rhs; }));
>+  }
>+#endif  // !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+}
>+
>+TEST(VariantExceptionSafetyTest, Emplace) {
>+  // If an exception during the initialization of the contained value, the
>+  // variant might not hold a value. The standard requires emplace() to provide
>+  // only basic guarantee.
>+  {
>+    Thrower args = ExpectedThrower();
>+    auto tester = MakeExceptionSafetyTester()
>+                      .WithInitialValue(WithThrower())
>+                      .WithOperation([&args](ThrowingVariant* v) {
>+                        v->emplace<Thrower>(args);
>+                      });
>+    EXPECT_TRUE(tester
>+                    .WithInvariants(CheckInvariants,
>+                                    [](ThrowingVariant* v) {
>+                                      return v->valueless_by_exception();
>+                                    })
>+                    .Test());
>+    EXPECT_FALSE(tester.WithInvariants(strong_guarantee).Test());
>+  }
>+}
>+
>+TEST(VariantExceptionSafetyTest, Swap) {
>+  // if both are valueless_by_exception(), no effect
>+  {
>+    ThrowingVariant rhs = ValuelessByException();
>+    ThrowingVariant lhs = ValuelessByException();
>+    EXPECT_TRUE(TestNothrowOp([&]() { lhs.swap(rhs); }));
>+  }
>+  // if index() == rhs.index(), calls swap(get<i>(*this), get<i>(rhs))
>+  // where i is index().
>+  {
>+    ThrowingVariant rhs = ExpectedThrower();
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithThrower())
>+                    .WithInvariants(CheckInvariants)
>+                    .Test([&](ThrowingVariant* lhs) {
>+                      auto copy = rhs;
>+                      lhs->swap(copy);
>+                    }));
>+  }
>+  // Otherwise, exchanges the value of rhs and *this. The exception safety
>+  // involves variant in moved-from state which is not specified in the
>+  // standard, and since swap is 3-step it's impossible for it to provide a
>+  // overall strong guarantee. So, we are only checking basic guarantee here.
>+  {
>+    ThrowingVariant rhs = ExpectedThrower();
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithCopyNoThrow())
>+                    .WithInvariants(CheckInvariants)
>+                    .Test([&](ThrowingVariant* lhs) {
>+                      auto copy = rhs;
>+                      lhs->swap(copy);
>+                    }));
>+  }
>+  {
>+    ThrowingVariant rhs = ExpectedThrower();
>+    EXPECT_TRUE(MakeExceptionSafetyTester()
>+                    .WithInitialValue(WithCopyNoThrow())
>+                    .WithInvariants(CheckInvariants)
>+                    .Test([&](ThrowingVariant* lhs) {
>+                      auto copy = rhs;
>+                      copy.swap(*lhs);
>+                    }));
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..262bd9446c1841a570715745c3434ee1b8e19f95
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/types/variant_test.cc
>@@ -0,0 +1,2612 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+// Unit tests for the variant template. The 'is' and 'IsEmpty' methods
>+// of variant are not explicitly tested because they are used repeatedly
>+// in building other tests. All other public variant methods should have
>+// explicit tests.
>+
>+#include "absl/types/variant.h"
>+
>+#include <algorithm>
>+#include <cstddef>
>+#include <functional>
>+#include <initializer_list>
>+#include <memory>
>+#include <ostream>
>+#include <queue>
>+#include <type_traits>
>+#include <unordered_set>
>+#include <utility>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/config.h"
>+#include "absl/base/port.h"
>+#include "absl/memory/memory.h"
>+#include "absl/meta/type_traits.h"
>+#include "absl/strings/string_view.h"
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+#define ABSL_VARIANT_TEST_EXPECT_FAIL(expr, exception_t, text) \
>+  EXPECT_THROW(expr, exception_t)
>+
>+#else
>+
>+#define ABSL_VARIANT_TEST_EXPECT_FAIL(expr, exception_t, text) \
>+  EXPECT_DEATH(expr, text)
>+
>+#endif  // ABSL_HAVE_EXCEPTIONS
>+
>+#define ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(...)                 \
>+  ABSL_VARIANT_TEST_EXPECT_FAIL((__VA_ARGS__), absl::bad_variant_access, \
>+                                "Bad variant access")
>+
>+struct Hashable {};
>+
>+namespace std {
>+template <>
>+struct hash<Hashable> {
>+  size_t operator()(const Hashable&);
>+};
>+}  // namespace std
>+
>+struct NonHashable {};
>+
>+namespace absl {
>+namespace {
>+
>+using ::testing::DoubleEq;
>+using ::testing::Pointee;
>+using ::testing::VariantWith;
>+
>+struct MoveCanThrow {
>+  MoveCanThrow() : v(0) {}
>+  MoveCanThrow(int v) : v(v) {}  // NOLINT(runtime/explicit)
>+  MoveCanThrow(const MoveCanThrow& other) : v(other.v) {}
>+  MoveCanThrow& operator=(const MoveCanThrow& /*other*/) { return *this; }
>+  int v;
>+};
>+
>+bool operator==(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v == rhs.v; }
>+bool operator!=(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v != rhs.v; }
>+bool operator<(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v < rhs.v; }
>+bool operator<=(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v <= rhs.v; }
>+bool operator>=(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v >= rhs.v; }
>+bool operator>(MoveCanThrow lhs, MoveCanThrow rhs) { return lhs.v > rhs.v; }
>+
>+// This helper class allows us to determine if it was swapped with std::swap()
>+// or with its friend swap() function.
>+struct SpecialSwap {
>+  explicit SpecialSwap(int i) : i(i) {}
>+  friend void swap(SpecialSwap& a, SpecialSwap& b) {
>+    a.special_swap = b.special_swap = true;
>+    std::swap(a.i, b.i);
>+  }
>+  bool operator==(SpecialSwap other) const { return i == other.i; }
>+  int i;
>+  bool special_swap = false;
>+};
>+
>+struct MoveOnlyWithListConstructor {
>+  MoveOnlyWithListConstructor() = default;
>+  explicit MoveOnlyWithListConstructor(std::initializer_list<int> /*ilist*/,
>+                                       int value)
>+      : value(value) {}
>+  MoveOnlyWithListConstructor(MoveOnlyWithListConstructor&&) = default;
>+  MoveOnlyWithListConstructor& operator=(MoveOnlyWithListConstructor&&) =
>+      default;
>+
>+  int value = 0;
>+};
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+struct ConversionException {};
>+
>+template <class T>
>+struct ExceptionOnConversion {
>+  operator T() const {  // NOLINT(runtime/explicit)
>+    throw ConversionException();
>+  }
>+};
>+
>+// Forces a variant into the valueless by exception state.
>+template <class H, class... T>
>+void ToValuelessByException(absl::variant<H, T...>& v) {  // NOLINT
>+  try {
>+    v.template emplace<0>(ExceptionOnConversion<H>());
>+  } catch (ConversionException& /*e*/) {
>+    // This space intentionally left blank.
>+  }
>+}
>+
>+#endif  // ABSL_HAVE_EXCEPTIONS
>+
>+// An indexed sequence of distinct structures holding a single
>+// value of type T
>+template<typename T, size_t N>
>+struct ValueHolder {
>+  explicit ValueHolder(const T& x) : value(x) {}
>+  typedef T value_type;
>+  value_type value;
>+  static const size_t kIndex = N;
>+};
>+template<typename T, size_t N>
>+const size_t ValueHolder<T, N>::kIndex;
>+
>+// The following three functions make ValueHolder compatible with
>+// EXPECT_EQ and EXPECT_NE
>+template<typename T, size_t N>
>+inline bool operator==(const ValueHolder<T, N>& left,
>+                       const ValueHolder<T, N>& right) {
>+  return left.value == right.value;
>+}
>+
>+template<typename T, size_t N>
>+inline bool operator!=(const ValueHolder<T, N>& left,
>+                       const ValueHolder<T, N>& right) {
>+  return left.value != right.value;
>+}
>+
>+template<typename T, size_t N>
>+inline std::ostream& operator<<(
>+    std::ostream& stream, const ValueHolder<T, N>& object) {
>+  return stream << object.value;
>+}
>+
>+// Makes a variant holding twelve uniquely typed T wrappers.
>+template<typename T>
>+struct VariantFactory {
>+  typedef variant<ValueHolder<T, 1>, ValueHolder<T, 2>, ValueHolder<T, 3>,
>+                  ValueHolder<T, 4>>
>+      Type;
>+};
>+
>+// A typelist in 1:1 with VariantFactory, to use type driven unit tests.
>+typedef ::testing::Types<ValueHolder<size_t, 1>, ValueHolder<size_t, 2>,
>+                         ValueHolder<size_t, 3>,
>+                         ValueHolder<size_t, 4>> VariantTypes;
>+
>+// Increments the provided counter pointer in the destructor
>+struct IncrementInDtor {
>+  explicit IncrementInDtor(int* counter) : counter(counter) {}
>+  ~IncrementInDtor() { *counter += 1; }
>+  int* counter;
>+};
>+
>+struct IncrementInDtorCopyCanThrow {
>+  explicit IncrementInDtorCopyCanThrow(int* counter) : counter(counter) {}
>+  IncrementInDtorCopyCanThrow(IncrementInDtorCopyCanThrow&& other) noexcept =
>+      default;
>+  IncrementInDtorCopyCanThrow(const IncrementInDtorCopyCanThrow& other)
>+      : counter(other.counter) {}
>+  IncrementInDtorCopyCanThrow& operator=(
>+      IncrementInDtorCopyCanThrow&&) noexcept = default;
>+  IncrementInDtorCopyCanThrow& operator=(
>+      IncrementInDtorCopyCanThrow const& other) {
>+    counter = other.counter;
>+    return *this;
>+  }
>+  ~IncrementInDtorCopyCanThrow() { *counter += 1; }
>+  int* counter;
>+};
>+
>+// This is defined so operator== for ValueHolder<IncrementInDtor> will
>+// return true if two IncrementInDtor objects increment the same
>+// counter
>+inline bool operator==(const IncrementInDtor& left,
>+                       const IncrementInDtor& right) {
>+  return left.counter == right.counter;
>+}
>+
>+// This is defined so EXPECT_EQ can work with IncrementInDtor
>+inline std::ostream& operator<<(
>+    std::ostream& stream, const IncrementInDtor& object) {
>+  return stream << object.counter;
>+}
>+
>+// A class that can be copied, but not assigned.
>+class CopyNoAssign {
>+ public:
>+  explicit CopyNoAssign(int value) : foo(value) {}
>+  CopyNoAssign(const CopyNoAssign& other) : foo(other.foo) {}
>+  int foo;
>+ private:
>+  const CopyNoAssign& operator=(const CopyNoAssign&);
>+};
>+
>+// A class that can neither be copied nor assigned. We provide
>+// overloads for the constructor with up to four parameters so we can
>+// test the overloads of variant::emplace.
>+class NonCopyable {
>+ public:
>+  NonCopyable()
>+      : value(0) {}
>+  explicit NonCopyable(int value1)
>+      : value(value1) {}
>+
>+  NonCopyable(int value1, int value2)
>+      : value(value1 + value2) {}
>+
>+  NonCopyable(int value1, int value2, int value3)
>+      : value(value1 + value2 + value3) {}
>+
>+  NonCopyable(int value1, int value2, int value3, int value4)
>+      : value(value1 + value2 + value3 + value4) {}
>+  NonCopyable(const NonCopyable&) = delete;
>+  NonCopyable& operator=(const NonCopyable&) = delete;
>+  int value;
>+};
>+
>+// A typed test and typed test case over the VariantTypes typelist,
>+// from which we derive a number of tests that will execute for one of
>+// each type.
>+template <typename T>
>+class VariantTypesTest : public ::testing::Test {};
>+TYPED_TEST_CASE(VariantTypesTest, VariantTypes);
>+
>+////////////////////
>+// [variant.ctor] //
>+////////////////////
>+
>+struct NonNoexceptDefaultConstructible {
>+  NonNoexceptDefaultConstructible() {}
>+  int value = 5;
>+};
>+
>+struct NonDefaultConstructible {
>+  NonDefaultConstructible() = delete;
>+};
>+
>+TEST(VariantTest, TestDefaultConstructor) {
>+  {
>+    using X = variant<int>;
>+    constexpr variant<int> x{};
>+    ASSERT_FALSE(x.valueless_by_exception());
>+    ASSERT_EQ(0, x.index());
>+    EXPECT_EQ(0, absl::get<0>(x));
>+    EXPECT_TRUE(std::is_nothrow_default_constructible<X>::value);
>+  }
>+
>+  {
>+    using X = variant<NonNoexceptDefaultConstructible>;
>+    X x{};
>+    ASSERT_FALSE(x.valueless_by_exception());
>+    ASSERT_EQ(0, x.index());
>+    EXPECT_EQ(5, absl::get<0>(x).value);
>+    EXPECT_FALSE(std::is_nothrow_default_constructible<X>::value);
>+  }
>+
>+  {
>+    using X = variant<int, NonNoexceptDefaultConstructible>;
>+    X x{};
>+    ASSERT_FALSE(x.valueless_by_exception());
>+    ASSERT_EQ(0, x.index());
>+    EXPECT_EQ(0, absl::get<0>(x));
>+    EXPECT_TRUE(std::is_nothrow_default_constructible<X>::value);
>+  }
>+
>+  {
>+    using X = variant<NonNoexceptDefaultConstructible, int>;
>+    X x{};
>+    ASSERT_FALSE(x.valueless_by_exception());
>+    ASSERT_EQ(0, x.index());
>+    EXPECT_EQ(5, absl::get<0>(x).value);
>+    EXPECT_FALSE(std::is_nothrow_default_constructible<X>::value);
>+  }
>+  EXPECT_FALSE(
>+      std::is_default_constructible<variant<NonDefaultConstructible>>::value);
>+  EXPECT_FALSE((std::is_default_constructible<
>+                variant<NonDefaultConstructible, int>>::value));
>+  EXPECT_TRUE((std::is_default_constructible<
>+               variant<int, NonDefaultConstructible>>::value));
>+}
>+
>+// Test that for each slot, copy constructing a variant with that type
>+// produces a sensible object that correctly reports its type, and
>+// that copies the provided value.
>+TYPED_TEST(VariantTypesTest, TestCopyCtor) {
>+  typedef typename VariantFactory<typename TypeParam::value_type>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  using value_type2 = absl::variant_alternative_t<1, Variant>;
>+  using value_type3 = absl::variant_alternative_t<2, Variant>;
>+  using value_type4 = absl::variant_alternative_t<3, Variant>;
>+  const TypeParam value(TypeParam::kIndex);
>+  Variant original(value);
>+  Variant copied(original);
>+  EXPECT_TRUE(absl::holds_alternative<value_type1>(copied) ||
>+              TypeParam::kIndex != 1);
>+  EXPECT_TRUE(absl::holds_alternative<value_type2>(copied) ||
>+              TypeParam::kIndex != 2);
>+  EXPECT_TRUE(absl::holds_alternative<value_type3>(copied) ||
>+              TypeParam::kIndex != 3);
>+  EXPECT_TRUE(absl::holds_alternative<value_type4>(copied) ||
>+              TypeParam::kIndex != 4);
>+  EXPECT_TRUE((absl::get_if<value_type1>(&original) ==
>+               absl::get_if<value_type1>(&copied)) ||
>+              TypeParam::kIndex == 1);
>+  EXPECT_TRUE((absl::get_if<value_type2>(&original) ==
>+               absl::get_if<value_type2>(&copied)) ||
>+              TypeParam::kIndex == 2);
>+  EXPECT_TRUE((absl::get_if<value_type3>(&original) ==
>+               absl::get_if<value_type3>(&copied)) ||
>+              TypeParam::kIndex == 3);
>+  EXPECT_TRUE((absl::get_if<value_type4>(&original) ==
>+               absl::get_if<value_type4>(&copied)) ||
>+              TypeParam::kIndex == 4);
>+  EXPECT_TRUE((absl::get_if<value_type1>(&original) ==
>+               absl::get_if<value_type1>(&copied)) ||
>+              TypeParam::kIndex == 1);
>+  EXPECT_TRUE((absl::get_if<value_type2>(&original) ==
>+               absl::get_if<value_type2>(&copied)) ||
>+              TypeParam::kIndex == 2);
>+  EXPECT_TRUE((absl::get_if<value_type3>(&original) ==
>+               absl::get_if<value_type3>(&copied)) ||
>+              TypeParam::kIndex == 3);
>+  EXPECT_TRUE((absl::get_if<value_type4>(&original) ==
>+               absl::get_if<value_type4>(&copied)) ||
>+              TypeParam::kIndex == 4);
>+  const TypeParam* ovalptr = absl::get_if<TypeParam>(&original);
>+  const TypeParam* cvalptr = absl::get_if<TypeParam>(&copied);
>+  ASSERT_TRUE(ovalptr != nullptr);
>+  ASSERT_TRUE(cvalptr != nullptr);
>+  EXPECT_EQ(*ovalptr, *cvalptr);
>+  TypeParam* mutable_ovalptr = absl::get_if<TypeParam>(&original);
>+  TypeParam* mutable_cvalptr = absl::get_if<TypeParam>(&copied);
>+  ASSERT_TRUE(mutable_ovalptr != nullptr);
>+  ASSERT_TRUE(mutable_cvalptr != nullptr);
>+  EXPECT_EQ(*mutable_ovalptr, *mutable_cvalptr);
>+}
>+
>+template <class>
>+struct MoveOnly {
>+  MoveOnly() = default;
>+  explicit MoveOnly(int value) : value(value) {}
>+  MoveOnly(MoveOnly&&) = default;
>+  MoveOnly& operator=(MoveOnly&&) = default;
>+  int value = 5;
>+};
>+
>+TEST(VariantTest, TestMoveConstruct) {
>+  using V = variant<MoveOnly<class A>, MoveOnly<class B>, MoveOnly<class C>>;
>+
>+  V v(in_place_index_t<1>{}, 10);
>+  V v2 = absl::move(v);
>+  EXPECT_EQ(10, absl::get<1>(v2).value);
>+}
>+
>+// Used internally to emulate missing triviality traits for tests.
>+template <class T>
>+union SingleUnion {
>+  T member;
>+};
>+
>+// NOTE: These don't work with types that can't be union members.
>+//       They are just for testing.
>+template <class T>
>+struct is_trivially_move_constructible
>+    : std::is_move_constructible<SingleUnion<T>>::type {};
>+
>+template <class T>
>+struct is_trivially_move_assignable
>+    : std::is_move_assignable<SingleUnion<T>>::type {};
>+
>+TEST(VariantTest, NothrowMoveConstructible) {
>+  // Verify that variant is nothrow move constructible iff its template
>+  // arguments are.
>+  using U = std::unique_ptr<int>;
>+  struct E {
>+    E(E&&) {}
>+  };
>+  static_assert(std::is_nothrow_move_constructible<variant<U>>::value, "");
>+  static_assert(std::is_nothrow_move_constructible<variant<U, int>>::value, "");
>+  static_assert(!std::is_nothrow_move_constructible<variant<U, E>>::value, "");
>+}
>+
>+// Test that for each slot, constructing a variant with that type
>+// produces a sensible object that correctly reports its type, and
>+// that copies the provided value.
>+TYPED_TEST(VariantTypesTest, TestValueCtor) {
>+  typedef typename VariantFactory<typename TypeParam::value_type>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  using value_type2 = absl::variant_alternative_t<1, Variant>;
>+  using value_type3 = absl::variant_alternative_t<2, Variant>;
>+  using value_type4 = absl::variant_alternative_t<3, Variant>;
>+  const TypeParam value(TypeParam::kIndex);
>+  Variant v(value);
>+  EXPECT_TRUE(absl::holds_alternative<value_type1>(v) ||
>+              TypeParam::kIndex != 1);
>+  EXPECT_TRUE(absl::holds_alternative<value_type2>(v) ||
>+              TypeParam::kIndex != 2);
>+  EXPECT_TRUE(absl::holds_alternative<value_type3>(v) ||
>+              TypeParam::kIndex != 3);
>+  EXPECT_TRUE(absl::holds_alternative<value_type4>(v) ||
>+              TypeParam::kIndex != 4);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type1>(&v) ||
>+              TypeParam::kIndex != 1);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type2>(&v) ||
>+              TypeParam::kIndex != 2);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type3>(&v) ||
>+              TypeParam::kIndex != 3);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type4>(&v) ||
>+              TypeParam::kIndex != 4);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type1>(&v) ||
>+              TypeParam::kIndex != 1);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type2>(&v) ||
>+              TypeParam::kIndex != 2);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type3>(&v) ||
>+              TypeParam::kIndex != 3);
>+  EXPECT_TRUE(nullptr != absl::get_if<value_type4>(&v) ||
>+              TypeParam::kIndex != 4);
>+  const TypeParam* valptr = absl::get_if<TypeParam>(&v);
>+  ASSERT_TRUE(nullptr != valptr);
>+  EXPECT_EQ(value.value, valptr->value);
>+  const TypeParam* mutable_valptr = absl::get_if<TypeParam>(&v);
>+  ASSERT_TRUE(nullptr != mutable_valptr);
>+  EXPECT_EQ(value.value, mutable_valptr->value);
>+}
>+
>+TEST(VariantTest, InPlaceType) {
>+  using Var = variant<int, std::string, NonCopyable, std::vector<int>>;
>+
>+  Var v1(in_place_type_t<int>(), 7);
>+  ASSERT_TRUE(absl::holds_alternative<int>(v1));
>+  EXPECT_EQ(7, absl::get<int>(v1));
>+
>+  Var v2(in_place_type_t<std::string>(), "ABC");
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(v2));
>+  EXPECT_EQ("ABC", absl::get<std::string>(v2));
>+
>+  Var v3(in_place_type_t<std::string>(), "ABC", 2);
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(v3));
>+  EXPECT_EQ("AB", absl::get<std::string>(v3));
>+
>+  Var v4(in_place_type_t<NonCopyable>{});
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v4));
>+
>+  Var v5(in_place_type_t<std::vector<int>>(), {1, 2, 3});
>+  ASSERT_TRUE(absl::holds_alternative<std::vector<int>>(v5));
>+  EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3));
>+}
>+
>+TEST(VariantTest, InPlaceTypeInitializerList) {
>+  using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>;
>+
>+  Var v1(in_place_type_t<MoveOnlyWithListConstructor>(), {1, 2, 3, 4, 5}, 6);
>+  ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1));
>+  EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value);
>+}
>+
>+TEST(VariantTest, InPlaceIndex) {
>+  using Var = variant<int, std::string, NonCopyable, std::vector<int>>;
>+
>+  Var v1(in_place_index_t<0>(), 7);
>+  ASSERT_TRUE(absl::holds_alternative<int>(v1));
>+  EXPECT_EQ(7, absl::get<int>(v1));
>+
>+  Var v2(in_place_index_t<1>(), "ABC");
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(v2));
>+  EXPECT_EQ("ABC", absl::get<std::string>(v2));
>+
>+  Var v3(in_place_index_t<1>(), "ABC", 2);
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(v3));
>+  EXPECT_EQ("AB", absl::get<std::string>(v3));
>+
>+  Var v4(in_place_index_t<2>{});
>+  EXPECT_TRUE(absl::holds_alternative<NonCopyable>(v4));
>+
>+  // Verify that a variant with only non-copyables can still be constructed.
>+  EXPECT_TRUE(absl::holds_alternative<NonCopyable>(
>+      variant<NonCopyable>(in_place_index_t<0>{})));
>+
>+  Var v5(in_place_index_t<3>(), {1, 2, 3});
>+  ASSERT_TRUE(absl::holds_alternative<std::vector<int>>(v5));
>+  EXPECT_THAT(absl::get<std::vector<int>>(v5), ::testing::ElementsAre(1, 2, 3));
>+}
>+
>+TEST(VariantTest, InPlaceIndexInitializerList) {
>+  using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>;
>+
>+  Var v1(in_place_index_t<3>(), {1, 2, 3, 4, 5}, 6);
>+  ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1));
>+  EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value);
>+}
>+
>+////////////////////
>+// [variant.dtor] //
>+////////////////////
>+
>+// Make sure that the destructor destroys the contained value
>+TEST(VariantTest, TestDtor) {
>+  typedef VariantFactory<IncrementInDtor>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  using value_type2 = absl::variant_alternative_t<1, Variant>;
>+  using value_type3 = absl::variant_alternative_t<2, Variant>;
>+  using value_type4 = absl::variant_alternative_t<3, Variant>;
>+  int counter = 0;
>+  IncrementInDtor counter_adjuster(&counter);
>+  EXPECT_EQ(0, counter);
>+
>+  value_type1 value1(counter_adjuster);
>+  { Variant object(value1); }
>+  EXPECT_EQ(1, counter);
>+
>+  value_type2 value2(counter_adjuster);
>+  { Variant object(value2); }
>+  EXPECT_EQ(2, counter);
>+
>+  value_type3 value3(counter_adjuster);
>+  { Variant object(value3); }
>+  EXPECT_EQ(3, counter);
>+
>+  value_type4 value4(counter_adjuster);
>+  { Variant object(value4); }
>+  EXPECT_EQ(4, counter);
>+}
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+// Test destruction when in the valueless_by_exception state.
>+TEST(VariantTest, TestDtorValuelessByException) {
>+  int counter = 0;
>+  IncrementInDtor counter_adjuster(&counter);
>+
>+  {
>+    using Variant = VariantFactory<IncrementInDtor>::Type;
>+
>+    Variant v(in_place_index_t<0>(), counter_adjuster);
>+    EXPECT_EQ(0, counter);
>+
>+    ToValuelessByException(v);
>+    ASSERT_TRUE(v.valueless_by_exception());
>+    EXPECT_EQ(1, counter);
>+  }
>+  EXPECT_EQ(1, counter);
>+}
>+
>+#endif  // ABSL_HAVE_EXCEPTIONS
>+
>+//////////////////////
>+// [variant.assign] //
>+//////////////////////
>+
>+// Test that self-assignment doesn't destroy the current value
>+TEST(VariantTest, TestSelfAssignment) {
>+  typedef VariantFactory<IncrementInDtor>::Type Variant;
>+  int counter = 0;
>+  IncrementInDtor counter_adjuster(&counter);
>+  absl::variant_alternative_t<0, Variant> value(counter_adjuster);
>+  Variant object(value);
>+  object.operator=(object);
>+  EXPECT_EQ(0, counter);
>+
>+  // A std::string long enough that it's likely to defeat any inline representation
>+  // optimization.
>+  const std::string long_str(128, 'a');
>+
>+  std::string foo = long_str;
>+  foo = *&foo;
>+  EXPECT_EQ(long_str, foo);
>+
>+  variant<int, std::string> so = long_str;
>+  ASSERT_EQ(1, so.index());
>+  EXPECT_EQ(long_str, absl::get<1>(so));
>+  so = *&so;
>+
>+  ASSERT_EQ(1, so.index());
>+  EXPECT_EQ(long_str, absl::get<1>(so));
>+}
>+
>+// Test that assigning a variant<..., T, ...> to a variant<..., T, ...> produces
>+// a variant<..., T, ...> with the correct value.
>+TYPED_TEST(VariantTypesTest, TestAssignmentCopiesValueSameTypes) {
>+  typedef typename VariantFactory<typename TypeParam::value_type>::Type Variant;
>+  const TypeParam value(TypeParam::kIndex);
>+  const Variant source(value);
>+  Variant target(TypeParam(value.value + 1));
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(source));
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(target));
>+  ASSERT_NE(absl::get<TypeParam>(source), absl::get<TypeParam>(target));
>+  target = source;
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(source));
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(target));
>+  EXPECT_EQ(absl::get<TypeParam>(source), absl::get<TypeParam>(target));
>+}
>+
>+// Test that assisnging a variant<..., T, ...> to a variant<1, ...>
>+// produces a variant<..., T, ...> with the correct value.
>+TYPED_TEST(VariantTypesTest, TestAssignmentCopiesValuesVaryingSourceType) {
>+  typedef typename VariantFactory<typename TypeParam::value_type>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  const TypeParam value(TypeParam::kIndex);
>+  const Variant source(value);
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(source));
>+  Variant target(value_type1(1));
>+  ASSERT_TRUE(absl::holds_alternative<value_type1>(target));
>+  target = source;
>+  EXPECT_TRUE(absl::holds_alternative<TypeParam>(source));
>+  EXPECT_TRUE(absl::holds_alternative<TypeParam>(target));
>+  EXPECT_EQ(absl::get<TypeParam>(source), absl::get<TypeParam>(target));
>+}
>+
>+// Test that assigning a variant<1, ...> to a variant<..., T, ...>
>+// produces a variant<1, ...> with the correct value.
>+TYPED_TEST(VariantTypesTest, TestAssignmentCopiesValuesVaryingTargetType) {
>+  typedef typename VariantFactory<typename TypeParam::value_type>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  const Variant source(value_type1(1));
>+  ASSERT_TRUE(absl::holds_alternative<value_type1>(source));
>+  const TypeParam value(TypeParam::kIndex);
>+  Variant target(value);
>+  ASSERT_TRUE(absl::holds_alternative<TypeParam>(target));
>+  target = source;
>+  EXPECT_TRUE(absl::holds_alternative<value_type1>(target));
>+  EXPECT_TRUE(absl::holds_alternative<value_type1>(source));
>+  EXPECT_EQ(absl::get<value_type1>(source), absl::get<value_type1>(target));
>+}
>+
>+// Test that operator=<T> works, that assigning a new value destroys
>+// the old and that assigning the new value again does not redestroy
>+// the old
>+TEST(VariantTest, TestAssign) {
>+  typedef VariantFactory<IncrementInDtor>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  using value_type2 = absl::variant_alternative_t<1, Variant>;
>+  using value_type3 = absl::variant_alternative_t<2, Variant>;
>+  using value_type4 = absl::variant_alternative_t<3, Variant>;
>+
>+  const int kSize = 4;
>+  int counter[kSize];
>+  std::unique_ptr<IncrementInDtor> counter_adjustor[kSize];
>+  for (int i = 0; i != kSize; i++) {
>+    counter[i] = 0;
>+    counter_adjustor[i] = absl::make_unique<IncrementInDtor>(&counter[i]);
>+  }
>+
>+  value_type1 v1(*counter_adjustor[0]);
>+  value_type2 v2(*counter_adjustor[1]);
>+  value_type3 v3(*counter_adjustor[2]);
>+  value_type4 v4(*counter_adjustor[3]);
>+
>+  // Test that reassignment causes destruction of old value
>+  {
>+    Variant object(v1);
>+    object = v2;
>+    object = v3;
>+    object = v4;
>+    object = v1;
>+  }
>+
>+  EXPECT_EQ(2, counter[0]);
>+  EXPECT_EQ(1, counter[1]);
>+  EXPECT_EQ(1, counter[2]);
>+  EXPECT_EQ(1, counter[3]);
>+
>+  std::fill(std::begin(counter), std::end(counter), 0);
>+
>+  // Test that self-assignment does not cause destruction of old value
>+  {
>+    Variant object(v1);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[0]);
>+  }
>+  {
>+    Variant object(v2);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[1]);
>+  }
>+  {
>+    Variant object(v3);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[2]);
>+  }
>+  {
>+    Variant object(v4);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[3]);
>+  }
>+
>+  EXPECT_EQ(1, counter[0]);
>+  EXPECT_EQ(1, counter[1]);
>+  EXPECT_EQ(1, counter[2]);
>+  EXPECT_EQ(1, counter[3]);
>+}
>+
>+// This tests that we perform a backup if the copy-assign can throw but the move
>+// cannot throw.
>+TEST(VariantTest, TestBackupAssign) {
>+  typedef VariantFactory<IncrementInDtorCopyCanThrow>::Type Variant;
>+  using value_type1 = absl::variant_alternative_t<0, Variant>;
>+  using value_type2 = absl::variant_alternative_t<1, Variant>;
>+  using value_type3 = absl::variant_alternative_t<2, Variant>;
>+  using value_type4 = absl::variant_alternative_t<3, Variant>;
>+
>+  const int kSize = 4;
>+  int counter[kSize];
>+  std::unique_ptr<IncrementInDtorCopyCanThrow> counter_adjustor[kSize];
>+  for (int i = 0; i != kSize; i++) {
>+    counter[i] = 0;
>+    counter_adjustor[i].reset(new IncrementInDtorCopyCanThrow(&counter[i]));
>+  }
>+
>+  value_type1 v1(*counter_adjustor[0]);
>+  value_type2 v2(*counter_adjustor[1]);
>+  value_type3 v3(*counter_adjustor[2]);
>+  value_type4 v4(*counter_adjustor[3]);
>+
>+  // Test that reassignment causes destruction of old value
>+  {
>+    Variant object(v1);
>+    object = v2;
>+    object = v3;
>+    object = v4;
>+    object = v1;
>+  }
>+
>+  // libstdc++ doesn't pass this test
>+#if !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+  EXPECT_EQ(3, counter[0]);
>+  EXPECT_EQ(2, counter[1]);
>+  EXPECT_EQ(2, counter[2]);
>+  EXPECT_EQ(2, counter[3]);
>+#endif
>+
>+  std::fill(std::begin(counter), std::end(counter), 0);
>+
>+  // Test that self-assignment does not cause destruction of old value
>+  {
>+    Variant object(v1);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[0]);
>+  }
>+  {
>+    Variant object(v2);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[1]);
>+  }
>+  {
>+    Variant object(v3);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[2]);
>+  }
>+  {
>+    Variant object(v4);
>+    object.operator=(object);
>+    EXPECT_EQ(0, counter[3]);
>+  }
>+
>+  EXPECT_EQ(1, counter[0]);
>+  EXPECT_EQ(1, counter[1]);
>+  EXPECT_EQ(1, counter[2]);
>+  EXPECT_EQ(1, counter[3]);
>+}
>+
>+///////////////////
>+// [variant.mod] //
>+///////////////////
>+
>+TEST(VariantTest, TestEmplaceBasic) {
>+  using Variant = variant<int, char>;
>+
>+  Variant v(absl::in_place_index_t<0>{}, 0);
>+
>+  {
>+    char& emplace_result = v.emplace<char>();
>+    ASSERT_TRUE(absl::holds_alternative<char>(v));
>+    EXPECT_EQ(absl::get<char>(v), 0);
>+    EXPECT_EQ(&emplace_result, &absl::get<char>(v));
>+  }
>+
>+  // Make sure that another emplace does zero-initialization
>+  absl::get<char>(v) = 'a';
>+  v.emplace<char>('b');
>+  ASSERT_TRUE(absl::holds_alternative<char>(v));
>+  EXPECT_EQ(absl::get<char>(v), 'b');
>+
>+  {
>+    int& emplace_result = v.emplace<int>();
>+    EXPECT_TRUE(absl::holds_alternative<int>(v));
>+    EXPECT_EQ(absl::get<int>(v), 0);
>+    EXPECT_EQ(&emplace_result, &absl::get<int>(v));
>+  }
>+}
>+
>+TEST(VariantTest, TestEmplaceInitializerList) {
>+  using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>;
>+
>+  Var v1(absl::in_place_index_t<0>{}, 555);
>+  MoveOnlyWithListConstructor& emplace_result =
>+      v1.emplace<MoveOnlyWithListConstructor>({1, 2, 3, 4, 5}, 6);
>+  ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1));
>+  EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value);
>+  EXPECT_EQ(&emplace_result, &absl::get<MoveOnlyWithListConstructor>(v1));
>+}
>+
>+TEST(VariantTest, TestEmplaceIndex) {
>+  using Variant = variant<int, char>;
>+
>+  Variant v(absl::in_place_index_t<0>{}, 555);
>+
>+  {
>+    char& emplace_result = v.emplace<1>();
>+    ASSERT_TRUE(absl::holds_alternative<char>(v));
>+    EXPECT_EQ(absl::get<char>(v), 0);
>+    EXPECT_EQ(&emplace_result, &absl::get<char>(v));
>+  }
>+
>+  // Make sure that another emplace does zero-initialization
>+  absl::get<char>(v) = 'a';
>+  v.emplace<1>('b');
>+  ASSERT_TRUE(absl::holds_alternative<char>(v));
>+  EXPECT_EQ(absl::get<char>(v), 'b');
>+
>+  {
>+    int& emplace_result = v.emplace<0>();
>+    EXPECT_TRUE(absl::holds_alternative<int>(v));
>+    EXPECT_EQ(absl::get<int>(v), 0);
>+    EXPECT_EQ(&emplace_result, &absl::get<int>(v));
>+  }
>+}
>+
>+TEST(VariantTest, TestEmplaceIndexInitializerList) {
>+  using Var = variant<int, std::string, NonCopyable, MoveOnlyWithListConstructor>;
>+
>+  Var v1(absl::in_place_index_t<0>{}, 555);
>+  MoveOnlyWithListConstructor& emplace_result =
>+      v1.emplace<3>({1, 2, 3, 4, 5}, 6);
>+  ASSERT_TRUE(absl::holds_alternative<MoveOnlyWithListConstructor>(v1));
>+  EXPECT_EQ(6, absl::get<MoveOnlyWithListConstructor>(v1).value);
>+  EXPECT_EQ(&emplace_result, &absl::get<MoveOnlyWithListConstructor>(v1));
>+}
>+
>+//////////////////////
>+// [variant.status] //
>+//////////////////////
>+
>+TEST(VariantTest, Index) {
>+  using Var = variant<int, std::string, double>;
>+
>+  Var v = 1;
>+  EXPECT_EQ(0, v.index());
>+  v = "str";
>+  EXPECT_EQ(1, v.index());
>+  v = 0.;
>+  EXPECT_EQ(2, v.index());
>+
>+  Var v2 = v;
>+  EXPECT_EQ(2, v2.index());
>+  v2.emplace<int>(3);
>+  EXPECT_EQ(0, v2.index());
>+}
>+
>+TEST(VariantTest, NotValuelessByException) {
>+  using Var = variant<int, std::string, double>;
>+
>+  Var v = 1;
>+  EXPECT_FALSE(v.valueless_by_exception());
>+  v = "str";
>+  EXPECT_FALSE(v.valueless_by_exception());
>+  v = 0.;
>+  EXPECT_FALSE(v.valueless_by_exception());
>+
>+  Var v2 = v;
>+  EXPECT_FALSE(v.valueless_by_exception());
>+  v2.emplace<int>(3);
>+  EXPECT_FALSE(v.valueless_by_exception());
>+}
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+TEST(VariantTest, IndexValuelessByException) {
>+  using Var = variant<MoveCanThrow, std::string, double>;
>+
>+  Var v(absl::in_place_index_t<0>{});
>+  EXPECT_EQ(0, v.index());
>+  ToValuelessByException(v);
>+  EXPECT_EQ(absl::variant_npos, v.index());
>+  v = "str";
>+  EXPECT_EQ(1, v.index());
>+}
>+
>+TEST(VariantTest, ValuelessByException) {
>+  using Var = variant<MoveCanThrow, std::string, double>;
>+
>+  Var v(absl::in_place_index_t<0>{});
>+  EXPECT_FALSE(v.valueless_by_exception());
>+  ToValuelessByException(v);
>+  EXPECT_TRUE(v.valueless_by_exception());
>+  v = "str";
>+  EXPECT_FALSE(v.valueless_by_exception());
>+}
>+
>+#endif  // ABSL_HAVE_EXCEPTIONS
>+
>+////////////////////
>+// [variant.swap] //
>+////////////////////
>+
>+TEST(VariantTest, MemberSwap) {
>+  SpecialSwap v1(3);
>+  SpecialSwap v2(7);
>+
>+  variant<SpecialSwap> a = v1, b = v2;
>+
>+  EXPECT_THAT(a, VariantWith<SpecialSwap>(v1));
>+  EXPECT_THAT(b, VariantWith<SpecialSwap>(v2));
>+
>+  a.swap(b);
>+  EXPECT_THAT(a, VariantWith<SpecialSwap>(v2));
>+  EXPECT_THAT(b, VariantWith<SpecialSwap>(v1));
>+  EXPECT_TRUE(absl::get<SpecialSwap>(a).special_swap);
>+
>+  using V = variant<MoveCanThrow, std::string, int>;
>+  int i = 33;
>+  std::string s = "abc";
>+  V valueless(in_place_index_t<0>{});
>+  ToValuelessByException(valueless);
>+  {
>+    // lhs and rhs holds different alternative
>+    V lhs(i), rhs(s);
>+    lhs.swap(rhs);
>+    EXPECT_THAT(lhs, VariantWith<std::string>(s));
>+    EXPECT_THAT(rhs, VariantWith<int>(i));
>+  }
>+  {
>+    // lhs is valueless
>+    V lhs(valueless), rhs(i);
>+    lhs.swap(rhs);
>+    EXPECT_THAT(lhs, VariantWith<int>(i));
>+    EXPECT_TRUE(rhs.valueless_by_exception());
>+  }
>+  {
>+    // rhs is valueless
>+    V lhs(s), rhs(valueless);
>+    lhs.swap(rhs);
>+    EXPECT_THAT(rhs, VariantWith<std::string>(s));
>+    EXPECT_TRUE(lhs.valueless_by_exception());
>+  }
>+  {
>+    // both are valueless
>+    V lhs(valueless), rhs(valueless);
>+    lhs.swap(rhs);
>+    EXPECT_TRUE(lhs.valueless_by_exception());
>+    EXPECT_TRUE(rhs.valueless_by_exception());
>+  }
>+}
>+
>+//////////////////////
>+// [variant.helper] //
>+//////////////////////
>+
>+TEST(VariantTest, VariantSize) {
>+  {
>+    using Size1Variant = absl::variant<int>;
>+    EXPECT_EQ(1, absl::variant_size<Size1Variant>::value);
>+    EXPECT_EQ(1, absl::variant_size<const Size1Variant>::value);
>+    EXPECT_EQ(1, absl::variant_size<volatile Size1Variant>::value);
>+    EXPECT_EQ(1, absl::variant_size<const volatile Size1Variant>::value);
>+  }
>+
>+  {
>+    using Size3Variant = absl::variant<int, float, int>;
>+    EXPECT_EQ(3, absl::variant_size<Size3Variant>::value);
>+    EXPECT_EQ(3, absl::variant_size<const Size3Variant>::value);
>+    EXPECT_EQ(3, absl::variant_size<volatile Size3Variant>::value);
>+    EXPECT_EQ(3, absl::variant_size<const volatile Size3Variant>::value);
>+  }
>+}
>+
>+TEST(VariantTest, VariantAlternative) {
>+  {
>+    using V = absl::variant<float, int, const char*>;
>+    EXPECT_TRUE(
>+        (std::is_same<float, absl::variant_alternative_t<0, V>>::value));
>+    EXPECT_TRUE((std::is_same<const float,
>+                              absl::variant_alternative_t<0, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<volatile float,
>+                      absl::variant_alternative_t<0, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const volatile float,
>+                     absl::variant_alternative_t<0, const volatile V>>::value));
>+
>+    EXPECT_TRUE((std::is_same<int, absl::variant_alternative_t<1, V>>::value));
>+    EXPECT_TRUE((std::is_same<const int,
>+                              absl::variant_alternative_t<1, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<volatile int,
>+                      absl::variant_alternative_t<1, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const volatile int,
>+                     absl::variant_alternative_t<1, const volatile V>>::value));
>+
>+    EXPECT_TRUE(
>+        (std::is_same<const char*, absl::variant_alternative_t<2, V>>::value));
>+    EXPECT_TRUE((std::is_same<const char* const,
>+                              absl::variant_alternative_t<2, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<const char* volatile,
>+                      absl::variant_alternative_t<2, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const char* const volatile,
>+                     absl::variant_alternative_t<2, const volatile V>>::value));
>+  }
>+
>+  {
>+    using V = absl::variant<float, volatile int, const char*>;
>+    EXPECT_TRUE(
>+        (std::is_same<float, absl::variant_alternative_t<0, V>>::value));
>+    EXPECT_TRUE((std::is_same<const float,
>+                              absl::variant_alternative_t<0, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<volatile float,
>+                      absl::variant_alternative_t<0, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const volatile float,
>+                     absl::variant_alternative_t<0, const volatile V>>::value));
>+
>+    EXPECT_TRUE(
>+        (std::is_same<volatile int, absl::variant_alternative_t<1, V>>::value));
>+    EXPECT_TRUE((std::is_same<const volatile int,
>+                              absl::variant_alternative_t<1, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<volatile int,
>+                      absl::variant_alternative_t<1, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const volatile int,
>+                     absl::variant_alternative_t<1, const volatile V>>::value));
>+
>+    EXPECT_TRUE(
>+        (std::is_same<const char*, absl::variant_alternative_t<2, V>>::value));
>+    EXPECT_TRUE((std::is_same<const char* const,
>+                              absl::variant_alternative_t<2, const V>>::value));
>+    EXPECT_TRUE(
>+        (std::is_same<const char* volatile,
>+                      absl::variant_alternative_t<2, volatile V>>::value));
>+    EXPECT_TRUE((
>+        std::is_same<const char* const volatile,
>+                     absl::variant_alternative_t<2, const volatile V>>::value));
>+  }
>+}
>+
>+///////////////////
>+// [variant.get] //
>+///////////////////
>+
>+TEST(VariantTest, HoldsAlternative) {
>+  using Var = variant<int, std::string, double>;
>+
>+  Var v = 1;
>+  EXPECT_TRUE(absl::holds_alternative<int>(v));
>+  EXPECT_FALSE(absl::holds_alternative<std::string>(v));
>+  EXPECT_FALSE(absl::holds_alternative<double>(v));
>+  v = "str";
>+  EXPECT_FALSE(absl::holds_alternative<int>(v));
>+  EXPECT_TRUE(absl::holds_alternative<std::string>(v));
>+  EXPECT_FALSE(absl::holds_alternative<double>(v));
>+  v = 0.;
>+  EXPECT_FALSE(absl::holds_alternative<int>(v));
>+  EXPECT_FALSE(absl::holds_alternative<std::string>(v));
>+  EXPECT_TRUE(absl::holds_alternative<double>(v));
>+
>+  Var v2 = v;
>+  EXPECT_FALSE(absl::holds_alternative<int>(v2));
>+  EXPECT_FALSE(absl::holds_alternative<std::string>(v2));
>+  EXPECT_TRUE(absl::holds_alternative<double>(v2));
>+  v2.emplace<int>(3);
>+  EXPECT_TRUE(absl::holds_alternative<int>(v2));
>+  EXPECT_FALSE(absl::holds_alternative<std::string>(v2));
>+  EXPECT_FALSE(absl::holds_alternative<double>(v2));
>+}
>+
>+TEST(VariantTest, GetIndex) {
>+  using Var = variant<int, std::string, double, int>;
>+
>+  {
>+    Var v(absl::in_place_index_t<0>{}, 0);
>+
>+    using LValueGetType = decltype(absl::get<0>(v));
>+    using RValueGetType = decltype(absl::get<0>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, int&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, int&&>::value));
>+    EXPECT_EQ(absl::get<0>(v), 0);
>+    EXPECT_EQ(absl::get<0>(absl::move(v)), 0);
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<0>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<0>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const int&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const int&&>::value));
>+    EXPECT_EQ(absl::get<0>(const_v), 0);
>+    EXPECT_EQ(absl::get<0>(absl::move(const_v)), 0);
>+  }
>+
>+  {
>+    Var v = std::string("Hello");
>+
>+    using LValueGetType = decltype(absl::get<1>(v));
>+    using RValueGetType = decltype(absl::get<1>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, std::string&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, std::string&&>::value));
>+    EXPECT_EQ(absl::get<1>(v), "Hello");
>+    EXPECT_EQ(absl::get<1>(absl::move(v)), "Hello");
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<1>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<1>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const std::string&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const std::string&&>::value));
>+    EXPECT_EQ(absl::get<1>(const_v), "Hello");
>+    EXPECT_EQ(absl::get<1>(absl::move(const_v)), "Hello");
>+  }
>+
>+  {
>+    Var v = 2.0;
>+
>+    using LValueGetType = decltype(absl::get<2>(v));
>+    using RValueGetType = decltype(absl::get<2>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, double&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, double&&>::value));
>+    EXPECT_EQ(absl::get<2>(v), 2.);
>+    EXPECT_EQ(absl::get<2>(absl::move(v)), 2.);
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<2>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<2>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const double&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const double&&>::value));
>+    EXPECT_EQ(absl::get<2>(const_v), 2.);
>+    EXPECT_EQ(absl::get<2>(absl::move(const_v)), 2.);
>+  }
>+
>+  {
>+    Var v(absl::in_place_index_t<0>{}, 0);
>+    v.emplace<3>(1);
>+
>+    using LValueGetType = decltype(absl::get<3>(v));
>+    using RValueGetType = decltype(absl::get<3>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, int&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, int&&>::value));
>+    EXPECT_EQ(absl::get<3>(v), 1);
>+    EXPECT_EQ(absl::get<3>(absl::move(v)), 1);
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<3>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<3>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const int&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const int&&>::value));
>+    EXPECT_EQ(absl::get<3>(const_v), 1);
>+    EXPECT_EQ(absl::get<3>(absl::move(const_v)), 1);  // NOLINT
>+  }
>+}
>+
>+TEST(VariantTest, BadGetIndex) {
>+  using Var = variant<int, std::string, double>;
>+
>+  {
>+    Var v = 1;
>+
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<1>(v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<1>(std::move(v)));
>+
>+    const Var& const_v = v;
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<1>(const_v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(
>+        absl::get<1>(std::move(const_v)));  // NOLINT
>+  }
>+
>+  {
>+    Var v = std::string("Hello");
>+
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<0>(v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<0>(std::move(v)));
>+
>+    const Var& const_v = v;
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<0>(const_v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(
>+        absl::get<0>(std::move(const_v)));  // NOLINT
>+  }
>+}
>+
>+TEST(VariantTest, GetType) {
>+  using Var = variant<int, std::string, double>;
>+
>+  {
>+    Var v = 1;
>+
>+    using LValueGetType = decltype(absl::get<int>(v));
>+    using RValueGetType = decltype(absl::get<int>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, int&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, int&&>::value));
>+    EXPECT_EQ(absl::get<int>(v), 1);
>+    EXPECT_EQ(absl::get<int>(absl::move(v)), 1);
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<int>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<int>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const int&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const int&&>::value));
>+    EXPECT_EQ(absl::get<int>(const_v), 1);
>+    EXPECT_EQ(absl::get<int>(absl::move(const_v)), 1);
>+  }
>+
>+  {
>+    Var v = std::string("Hello");
>+
>+    using LValueGetType = decltype(absl::get<1>(v));
>+    using RValueGetType = decltype(absl::get<1>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, std::string&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, std::string&&>::value));
>+    EXPECT_EQ(absl::get<std::string>(v), "Hello");
>+    EXPECT_EQ(absl::get<std::string>(absl::move(v)), "Hello");
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<1>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<1>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const std::string&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const std::string&&>::value));
>+    EXPECT_EQ(absl::get<std::string>(const_v), "Hello");
>+    EXPECT_EQ(absl::get<std::string>(absl::move(const_v)), "Hello");
>+  }
>+
>+  {
>+    Var v = 2.0;
>+
>+    using LValueGetType = decltype(absl::get<2>(v));
>+    using RValueGetType = decltype(absl::get<2>(absl::move(v)));
>+
>+    EXPECT_TRUE((std::is_same<LValueGetType, double&>::value));
>+    EXPECT_TRUE((std::is_same<RValueGetType, double&&>::value));
>+    EXPECT_EQ(absl::get<double>(v), 2.);
>+    EXPECT_EQ(absl::get<double>(absl::move(v)), 2.);
>+
>+    const Var& const_v = v;
>+    using ConstLValueGetType = decltype(absl::get<2>(const_v));
>+    using ConstRValueGetType = decltype(absl::get<2>(absl::move(const_v)));
>+    EXPECT_TRUE((std::is_same<ConstLValueGetType, const double&>::value));
>+    EXPECT_TRUE((std::is_same<ConstRValueGetType, const double&&>::value));
>+    EXPECT_EQ(absl::get<double>(const_v), 2.);
>+    EXPECT_EQ(absl::get<double>(absl::move(const_v)), 2.);
>+  }
>+}
>+
>+TEST(VariantTest, BadGetType) {
>+  using Var = variant<int, std::string, double>;
>+
>+  {
>+    Var v = 1;
>+
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<std::string>(v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(
>+        absl::get<std::string>(std::move(v)));
>+
>+    const Var& const_v = v;
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<std::string>(const_v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(
>+        absl::get<std::string>(std::move(const_v)));  // NOLINT
>+  }
>+
>+  {
>+    Var v = std::string("Hello");
>+
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<int>(v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<int>(std::move(v)));
>+
>+    const Var& const_v = v;
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(absl::get<int>(const_v));
>+    ABSL_VARIANT_TEST_EXPECT_BAD_VARIANT_ACCESS(
>+        absl::get<int>(std::move(const_v)));  // NOLINT
>+  }
>+}
>+
>+TEST(VariantTest, GetIfIndex) {
>+  using Var = variant<int, std::string, double, int>;
>+
>+  {
>+    Var v(absl::in_place_index_t<0>{}, 0);
>+    EXPECT_TRUE(noexcept(absl::get_if<0>(&v)));
>+
>+    {
>+      auto* elem = absl::get_if<0>(&v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), int*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 0);
>+      {
>+        auto* bad_elem = absl::get_if<1>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), double*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+    }
>+
>+    const Var& const_v = v;
>+    EXPECT_TRUE(noexcept(absl::get_if<0>(&const_v)));
>+
>+    {
>+      auto* elem = absl::get_if<0>(&const_v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), const int*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 0);
>+      {
>+        auto* bad_elem = absl::get_if<1>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const double*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&const_v);
>+        EXPECT_EQ(bad_elem, nullptr);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+      }
>+    }
>+  }
>+
>+  {
>+    Var v = std::string("Hello");
>+    EXPECT_TRUE(noexcept(absl::get_if<1>(&v)));
>+
>+    {
>+      auto* elem = absl::get_if<1>(&v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), std::string*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, "Hello");
>+      {
>+        auto* bad_elem = absl::get_if<0>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), double*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+    }
>+
>+    const Var& const_v = v;
>+    EXPECT_TRUE(noexcept(absl::get_if<1>(&const_v)));
>+
>+    {
>+      auto* elem = absl::get_if<1>(&const_v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), const std::string*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, "Hello");
>+      {
>+        auto* bad_elem = absl::get_if<0>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const double*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&const_v);
>+        EXPECT_EQ(bad_elem, nullptr);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+      }
>+    }
>+  }
>+
>+  {
>+    Var v = 2.0;
>+    EXPECT_TRUE(noexcept(absl::get_if<2>(&v)));
>+
>+    {
>+      auto* elem = absl::get_if<2>(&v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), double*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 2.0);
>+      {
>+        auto* bad_elem = absl::get_if<0>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<1>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+    }
>+
>+    const Var& const_v = v;
>+    EXPECT_TRUE(noexcept(absl::get_if<2>(&const_v)));
>+
>+    {
>+      auto* elem = absl::get_if<2>(&const_v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), const double*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 2.0);
>+      {
>+        auto* bad_elem = absl::get_if<0>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<1>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<3>(&const_v);
>+        EXPECT_EQ(bad_elem, nullptr);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+      }
>+    }
>+  }
>+
>+  {
>+    Var v(absl::in_place_index_t<0>{}, 0);
>+    v.emplace<3>(1);
>+    EXPECT_TRUE(noexcept(absl::get_if<3>(&v)));
>+
>+    {
>+      auto* elem = absl::get_if<3>(&v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), int*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 1);
>+      {
>+        auto* bad_elem = absl::get_if<0>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<1>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), double*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+    }
>+
>+    const Var& const_v = v;
>+    EXPECT_TRUE(noexcept(absl::get_if<3>(&const_v)));
>+
>+    {
>+      auto* elem = absl::get_if<3>(&const_v);
>+      EXPECT_TRUE((std::is_same<decltype(elem), const int*>::value));
>+      ASSERT_NE(elem, nullptr);
>+      EXPECT_EQ(*elem, 1);
>+      {
>+        auto* bad_elem = absl::get_if<0>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const int*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<1>(&const_v);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const std::string*>::value));
>+        EXPECT_EQ(bad_elem, nullptr);
>+      }
>+      {
>+        auto* bad_elem = absl::get_if<2>(&const_v);
>+        EXPECT_EQ(bad_elem, nullptr);
>+        EXPECT_TRUE((std::is_same<decltype(bad_elem), const double*>::value));
>+      }
>+    }
>+  }
>+}
>+
>+//////////////////////
>+// [variant.relops] //
>+//////////////////////
>+
>+TEST(VariantTest, OperatorEquals) {
>+  variant<int, std::string> a(1), b(1);
>+  EXPECT_TRUE(a == b);
>+  EXPECT_TRUE(b == a);
>+  EXPECT_FALSE(a != b);
>+  EXPECT_FALSE(b != a);
>+
>+  b = "str";
>+  EXPECT_FALSE(a == b);
>+  EXPECT_FALSE(b == a);
>+  EXPECT_TRUE(a != b);
>+  EXPECT_TRUE(b != a);
>+
>+  b = 0;
>+  EXPECT_FALSE(a == b);
>+  EXPECT_FALSE(b == a);
>+  EXPECT_TRUE(a != b);
>+  EXPECT_TRUE(b != a);
>+
>+  a = b = "foo";
>+  EXPECT_TRUE(a == b);
>+  EXPECT_TRUE(b == a);
>+  EXPECT_FALSE(a != b);
>+  EXPECT_FALSE(b != a);
>+
>+  a = "bar";
>+  EXPECT_FALSE(a == b);
>+  EXPECT_FALSE(b == a);
>+  EXPECT_TRUE(a != b);
>+  EXPECT_TRUE(b != a);
>+}
>+
>+TEST(VariantTest, OperatorRelational) {
>+  variant<int, std::string> a(1), b(1);
>+  EXPECT_FALSE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_FALSE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_TRUE(b <= a);
>+  EXPECT_TRUE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+
>+  b = "str";
>+  EXPECT_TRUE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_TRUE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_FALSE(b <= a);
>+  EXPECT_FALSE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+
>+  b = 0;
>+  EXPECT_FALSE(a < b);
>+  EXPECT_TRUE(b < a);
>+  EXPECT_TRUE(a > b);
>+  EXPECT_FALSE(b > a);
>+  EXPECT_FALSE(a <= b);
>+  EXPECT_TRUE(b <= a);
>+  EXPECT_TRUE(a >= b);
>+  EXPECT_FALSE(b >= a);
>+
>+  a = b = "foo";
>+  EXPECT_FALSE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_FALSE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_TRUE(b <= a);
>+  EXPECT_TRUE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+
>+  a = "bar";
>+  EXPECT_TRUE(a < b);
>+  EXPECT_FALSE(b < a);
>+  EXPECT_FALSE(a > b);
>+  EXPECT_TRUE(b > a);
>+  EXPECT_TRUE(a <= b);
>+  EXPECT_FALSE(b <= a);
>+  EXPECT_FALSE(a >= b);
>+  EXPECT_TRUE(b >= a);
>+}
>+
>+#ifdef ABSL_HAVE_EXCEPTIONS
>+
>+TEST(VariantTest, ValuelessOperatorEquals) {
>+  variant<MoveCanThrow, std::string> int_v(1), string_v("Hello"),
>+      valueless(absl::in_place_index_t<0>{}),
>+      other_valueless(absl::in_place_index_t<0>{});
>+  ToValuelessByException(valueless);
>+  ToValuelessByException(other_valueless);
>+
>+  EXPECT_TRUE(valueless == other_valueless);
>+  EXPECT_TRUE(other_valueless == valueless);
>+  EXPECT_FALSE(valueless == int_v);
>+  EXPECT_FALSE(valueless == string_v);
>+  EXPECT_FALSE(int_v == valueless);
>+  EXPECT_FALSE(string_v == valueless);
>+
>+  EXPECT_FALSE(valueless != other_valueless);
>+  EXPECT_FALSE(other_valueless != valueless);
>+  EXPECT_TRUE(valueless != int_v);
>+  EXPECT_TRUE(valueless != string_v);
>+  EXPECT_TRUE(int_v != valueless);
>+  EXPECT_TRUE(string_v != valueless);
>+}
>+
>+TEST(VariantTest, ValuelessOperatorRelational) {
>+  variant<MoveCanThrow, std::string> int_v(1), string_v("Hello"),
>+      valueless(absl::in_place_index_t<0>{}),
>+      other_valueless(absl::in_place_index_t<0>{});
>+  ToValuelessByException(valueless);
>+  ToValuelessByException(other_valueless);
>+
>+  EXPECT_FALSE(valueless < other_valueless);
>+  EXPECT_FALSE(other_valueless < valueless);
>+  EXPECT_TRUE(valueless < int_v);
>+  EXPECT_TRUE(valueless < string_v);
>+  EXPECT_FALSE(int_v < valueless);
>+  EXPECT_FALSE(string_v < valueless);
>+
>+  EXPECT_TRUE(valueless <= other_valueless);
>+  EXPECT_TRUE(other_valueless <= valueless);
>+  EXPECT_TRUE(valueless <= int_v);
>+  EXPECT_TRUE(valueless <= string_v);
>+  EXPECT_FALSE(int_v <= valueless);
>+  EXPECT_FALSE(string_v <= valueless);
>+
>+  EXPECT_TRUE(valueless >= other_valueless);
>+  EXPECT_TRUE(other_valueless >= valueless);
>+  EXPECT_FALSE(valueless >= int_v);
>+  EXPECT_FALSE(valueless >= string_v);
>+  EXPECT_TRUE(int_v >= valueless);
>+  EXPECT_TRUE(string_v >= valueless);
>+
>+  EXPECT_FALSE(valueless > other_valueless);
>+  EXPECT_FALSE(other_valueless > valueless);
>+  EXPECT_FALSE(valueless > int_v);
>+  EXPECT_FALSE(valueless > string_v);
>+  EXPECT_TRUE(int_v > valueless);
>+  EXPECT_TRUE(string_v > valueless);
>+}
>+
>+#endif
>+
>+/////////////////////
>+// [variant.visit] //
>+/////////////////////
>+
>+template <typename T>
>+struct ConvertTo {
>+  template <typename U>
>+  T operator()(const U& u) const {
>+    return u;
>+  }
>+};
>+
>+TEST(VariantTest, VisitSimple) {
>+  variant<std::string, const char*> v = "A";
>+
>+  std::string str = absl::visit(ConvertTo<std::string>{}, v);
>+  EXPECT_EQ("A", str);
>+
>+  v = std::string("B");
>+
>+  absl::string_view piece = absl::visit(ConvertTo<absl::string_view>{}, v);
>+  EXPECT_EQ("B", piece);
>+
>+  struct StrLen {
>+    int operator()(const std::string& s) const { return s.size(); }
>+    int operator()(const char* s) const { return strlen(s); }
>+  };
>+
>+  v = "SomeStr";
>+  EXPECT_EQ(7, absl::visit(StrLen{}, v));
>+  v = std::string("VeryLargeThisTime");
>+  EXPECT_EQ(17, absl::visit(StrLen{}, v));
>+}
>+
>+TEST(VariantTest, VisitRValue) {
>+  variant<std::string> v = std::string("X");
>+  struct Visitor {
>+    bool operator()(const std::string&) const { return false; }
>+    bool operator()(std::string&&) const { return true; }  // NOLINT
>+
>+    int operator()(const std::string&, const std::string&) const { return 0; }
>+    int operator()(const std::string&, std::string&&) const { return 1; }  // NOLINT
>+    int operator()(std::string&&, const std::string&) const { return 2; }  // NOLINT
>+    int operator()(std::string&&, std::string&&) const { return 3; }       // NOLINT
>+  };
>+  EXPECT_FALSE(absl::visit(Visitor{}, v));
>+  EXPECT_TRUE(absl::visit(Visitor{}, absl::move(v)));
>+
>+  // Also test the variadic overload.
>+  EXPECT_EQ(0, absl::visit(Visitor{}, v, v));
>+  EXPECT_EQ(1, absl::visit(Visitor{}, v, absl::move(v)));
>+  EXPECT_EQ(2, absl::visit(Visitor{}, absl::move(v), v));
>+  EXPECT_EQ(3, absl::visit(Visitor{}, absl::move(v), absl::move(v)));
>+}
>+
>+TEST(VariantTest, VisitRValueVisitor) {
>+  variant<std::string> v = std::string("X");
>+  struct Visitor {
>+    bool operator()(const std::string&) const& { return false; }
>+    bool operator()(const std::string&) && { return true; }
>+  };
>+  Visitor visitor;
>+  EXPECT_FALSE(absl::visit(visitor, v));
>+  EXPECT_TRUE(absl::visit(Visitor{}, v));
>+}
>+
>+TEST(VariantTest, VisitResultTypeDifferent) {
>+  variant<std::string> v = std::string("X");
>+  struct LValue_LValue {};
>+  struct RValue_LValue {};
>+  struct LValue_RValue {};
>+  struct RValue_RValue {};
>+  struct Visitor {
>+    LValue_LValue operator()(const std::string&) const& { return {}; }
>+    RValue_LValue operator()(std::string&&) const& { return {}; }  // NOLINT
>+    LValue_RValue operator()(const std::string&) && { return {}; }
>+    RValue_RValue operator()(std::string&&) && { return {}; }  // NOLINT
>+  } visitor;
>+
>+  EXPECT_TRUE(
>+      (std::is_same<LValue_LValue, decltype(absl::visit(visitor, v))>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<RValue_LValue,
>+                    decltype(absl::visit(visitor, absl::move(v)))>::value));
>+  EXPECT_TRUE((
>+      std::is_same<LValue_RValue, decltype(absl::visit(Visitor{}, v))>::value));
>+  EXPECT_TRUE(
>+      (std::is_same<RValue_RValue,
>+                    decltype(absl::visit(Visitor{}, absl::move(v)))>::value));
>+}
>+
>+TEST(VariantTest, VisitVariadic) {
>+  using A = variant<int, std::string>;
>+  using B = variant<std::unique_ptr<int>, absl::string_view>;
>+
>+  struct Visitor {
>+    std::pair<int, int> operator()(int a, std::unique_ptr<int> b) const {
>+      return {a, *b};
>+    }
>+    std::pair<int, int> operator()(absl::string_view a,
>+                                   std::unique_ptr<int> b) const {
>+      return {static_cast<int>(a.size()), static_cast<int>(*b)};
>+    }
>+    std::pair<int, int> operator()(int a, absl::string_view b) const {
>+      return {a, static_cast<int>(b.size())};
>+    }
>+    std::pair<int, int> operator()(absl::string_view a,
>+                                   absl::string_view b) const {
>+      return {static_cast<int>(a.size()), static_cast<int>(b.size())};
>+    }
>+  };
>+
>+  EXPECT_THAT(absl::visit(Visitor(), A(1), B(std::unique_ptr<int>(new int(7)))),
>+              ::testing::Pair(1, 7));
>+  EXPECT_THAT(absl::visit(Visitor(), A(1), B(absl::string_view("ABC"))),
>+              ::testing::Pair(1, 3));
>+  EXPECT_THAT(absl::visit(Visitor(), A(std::string("BBBBB")),
>+                          B(std::unique_ptr<int>(new int(7)))),
>+              ::testing::Pair(5, 7));
>+  EXPECT_THAT(
>+      absl::visit(Visitor(), A(std::string("BBBBB")), B(absl::string_view("ABC"))),
>+      ::testing::Pair(5, 3));
>+}
>+
>+TEST(VariantTest, VisitNoArgs) {
>+  EXPECT_EQ(5, absl::visit([] { return 5; }));
>+}
>+
>+struct ConstFunctor {
>+  int operator()(int a, int b) const { return a - b; }
>+};
>+
>+struct MutableFunctor {
>+  int operator()(int a, int b) { return a - b; }
>+};
>+
>+struct Class {
>+  int Method(int a, int b) { return a - b; }
>+  int ConstMethod(int a, int b) const { return a - b; }
>+
>+  int member;
>+};
>+
>+TEST(VariantTest, VisitReferenceWrapper) {
>+  ConstFunctor cf;
>+  MutableFunctor mf;
>+  absl::variant<int> three = 3;
>+  absl::variant<int> two = 2;
>+
>+  EXPECT_EQ(1, absl::visit(std::cref(cf), three, two));
>+  EXPECT_EQ(1, absl::visit(std::ref(cf), three, two));
>+  EXPECT_EQ(1, absl::visit(std::ref(mf), three, two));
>+}
>+
>+// libstdc++ std::variant doesn't support the INVOKE semantics.
>+#if !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+TEST(VariantTest, VisitMemberFunction) {
>+  absl::variant<std::unique_ptr<Class>> p(absl::make_unique<Class>());
>+  absl::variant<std::unique_ptr<const Class>> cp(
>+      absl::make_unique<const Class>());
>+  absl::variant<int> three = 3;
>+  absl::variant<int> two = 2;
>+
>+  EXPECT_EQ(1, absl::visit(&Class::Method, p, three, two));
>+  EXPECT_EQ(1, absl::visit(&Class::ConstMethod, p, three, two));
>+  EXPECT_EQ(1, absl::visit(&Class::ConstMethod, cp, three, two));
>+}
>+
>+TEST(VariantTest, VisitDataMember) {
>+  absl::variant<std::unique_ptr<Class>> p(absl::make_unique<Class>(Class{42}));
>+  absl::variant<std::unique_ptr<const Class>> cp(
>+      absl::make_unique<const Class>(Class{42}));
>+  EXPECT_EQ(42, absl::visit(&Class::member, p));
>+
>+  absl::visit(&Class::member, p) = 5;
>+  EXPECT_EQ(5, absl::visit(&Class::member, p));
>+
>+  EXPECT_EQ(42, absl::visit(&Class::member, cp));
>+}
>+#endif  // !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+
>+/////////////////////////
>+// [variant.monostate] //
>+/////////////////////////
>+
>+TEST(VariantTest, MonostateBasic) {
>+  absl::monostate mono;
>+  (void)mono;
>+
>+  // TODO(mattcalabrese) Expose move triviality metafunctions in absl.
>+  EXPECT_TRUE(absl::is_trivially_default_constructible<absl::monostate>::value);
>+  EXPECT_TRUE(is_trivially_move_constructible<absl::monostate>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<absl::monostate>::value);
>+  EXPECT_TRUE(is_trivially_move_assignable<absl::monostate>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<absl::monostate>::value);
>+  EXPECT_TRUE(absl::is_trivially_destructible<absl::monostate>::value);
>+}
>+
>+TEST(VariantTest, VariantMonostateDefaultConstruction) {
>+  absl::variant<absl::monostate, NonDefaultConstructible> var;
>+  EXPECT_EQ(var.index(), 0);
>+}
>+
>+////////////////////////////////
>+// [variant.monostate.relops] //
>+////////////////////////////////
>+
>+TEST(VariantTest, MonostateComparisons) {
>+  absl::monostate lhs, rhs;
>+
>+  EXPECT_EQ(lhs, lhs);
>+  EXPECT_EQ(lhs, rhs);
>+
>+  EXPECT_FALSE(lhs != lhs);
>+  EXPECT_FALSE(lhs != rhs);
>+  EXPECT_FALSE(lhs < lhs);
>+  EXPECT_FALSE(lhs < rhs);
>+  EXPECT_FALSE(lhs > lhs);
>+  EXPECT_FALSE(lhs > rhs);
>+
>+  EXPECT_LE(lhs, lhs);
>+  EXPECT_LE(lhs, rhs);
>+  EXPECT_GE(lhs, lhs);
>+  EXPECT_GE(lhs, rhs);
>+
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() ==
>+                       std::declval<absl::monostate>()));
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() !=
>+                       std::declval<absl::monostate>()));
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() <
>+                       std::declval<absl::monostate>()));
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() >
>+                       std::declval<absl::monostate>()));
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() <=
>+                       std::declval<absl::monostate>()));
>+  EXPECT_TRUE(noexcept(std::declval<absl::monostate>() >=
>+                       std::declval<absl::monostate>()));
>+}
>+
>+///////////////////////
>+// [variant.specalg] //
>+///////////////////////
>+
>+TEST(VariantTest, NonmemberSwap) {
>+  using std::swap;
>+
>+  SpecialSwap v1(3);
>+  SpecialSwap v2(7);
>+
>+  variant<SpecialSwap> a = v1, b = v2;
>+
>+  EXPECT_THAT(a, VariantWith<SpecialSwap>(v1));
>+  EXPECT_THAT(b, VariantWith<SpecialSwap>(v2));
>+
>+  std::swap(a, b);
>+  EXPECT_THAT(a, VariantWith<SpecialSwap>(v2));
>+  EXPECT_THAT(b, VariantWith<SpecialSwap>(v1));
>+#ifndef ABSL_HAVE_STD_VARIANT
>+  EXPECT_FALSE(absl::get<SpecialSwap>(a).special_swap);
>+#endif
>+
>+  swap(a, b);
>+  EXPECT_THAT(a, VariantWith<SpecialSwap>(v1));
>+  EXPECT_THAT(b, VariantWith<SpecialSwap>(v2));
>+  EXPECT_TRUE(absl::get<SpecialSwap>(b).special_swap);
>+}
>+
>+//////////////////////////
>+// [variant.bad.access] //
>+//////////////////////////
>+
>+TEST(VariantTest, BadAccess) {
>+  EXPECT_TRUE(noexcept(absl::bad_variant_access()));
>+  absl::bad_variant_access exception_obj;
>+  std::exception* base = &exception_obj;
>+  (void)base;
>+}
>+
>+////////////////////
>+// [variant.hash] //
>+////////////////////
>+
>+TEST(VariantTest, MonostateHash) {
>+  absl::monostate mono, other_mono;
>+  std::hash<absl::monostate> const hasher{};
>+  static_assert(std::is_same<decltype(hasher(mono)), std::size_t>::value, "");
>+  EXPECT_EQ(hasher(mono), hasher(other_mono));
>+}
>+
>+TEST(VariantTest, Hash) {
>+  static_assert(type_traits_internal::IsHashEnabled<variant<int>>::value, "");
>+  static_assert(type_traits_internal::IsHashEnabled<variant<Hashable>>::value,
>+                "");
>+  static_assert(
>+      type_traits_internal::IsHashEnabled<variant<int, Hashable>>::value, "");
>+
>+#if defined(_MSC_VER) ||                                   \
>+    (defined(_LIBCPP_VERSION) && _LIBCPP_VERSION < 4000 && \
>+     _LIBCPP_STD_VER > 11) ||                              \
>+    defined(__APPLE__)
>+  // For MSVC and libc++ (< 4.0 and c++14), std::hash primary template has a
>+  // static_assert to catch any user-defined type T that doesn't provide a hash
>+  // specialization. So instantiating std::hash<variant<T>> will result
>+  // in a hard error which is not SFINAE friendly.
>+#define ABSL_STD_HASH_NOT_SFINAE_FRIENDLY 1
>+#endif
>+
>+#ifndef ABSL_STD_HASH_NOT_SFINAE_FRIENDLY
>+  static_assert(
>+      !type_traits_internal::IsHashEnabled<variant<NonHashable>>::value, "");
>+  static_assert(!type_traits_internal::IsHashEnabled<
>+                    variant<Hashable, NonHashable>>::value,
>+                "");
>+#endif
>+
>+// MSVC std::hash<std::variant> does not use the index, thus produce the same
>+// result on the same value as different alternative.
>+#if !(defined(_MSC_VER) && defined(ABSL_HAVE_STD_VARIANT))
>+  {
>+    // same value as different alternative
>+    variant<int, int> v0(in_place_index_t<0>{}, 42);
>+    variant<int, int> v1(in_place_index_t<1>{}, 42);
>+    std::hash<variant<int, int>> hash;
>+    EXPECT_NE(hash(v0), hash(v1));
>+  }
>+#endif  // !(defined(_MSC_VER) && defined(ABSL_HAVE_STD_VARIANT))
>+
>+  {
>+    std::hash<variant<int>> hash;
>+    std::set<size_t> hashcodes;
>+    for (int i = 0; i < 100; ++i) {
>+      hashcodes.insert(hash(i));
>+    }
>+    EXPECT_GT(hashcodes.size(), 90);
>+
>+    // test const-qualified
>+    static_assert(
>+        type_traits_internal::IsHashEnabled<variant<const int>>::value, "");
>+    static_assert(
>+        type_traits_internal::IsHashEnabled<variant<const Hashable>>::value,
>+        "");
>+    std::hash<absl::variant<const int>> c_hash;
>+    for (int i = 0; i < 100; ++i) {
>+      EXPECT_EQ(hash(i), c_hash(i));
>+    }
>+  }
>+}
>+
>+////////////////////////////////////////
>+// Miscellaneous and deprecated tests //
>+////////////////////////////////////////
>+
>+// Test that a set requiring a basic type conversion works correctly.
>+TEST(VariantTest, TestConvertingSet) {
>+  typedef variant<double> Variant;
>+  Variant v(1.0);
>+  const int two = 2;
>+  v = two;
>+  EXPECT_TRUE(absl::holds_alternative<double>(v));
>+  ASSERT_TRUE(nullptr != absl::get_if<double>(&v));
>+  EXPECT_DOUBLE_EQ(2, absl::get<double>(v));
>+}
>+
>+// Test that a vector of variants behaves reasonably.
>+TEST(VariantTest, Container) {
>+  typedef variant<int, float> Variant;
>+
>+  // Creation of vector should work
>+  std::vector<Variant> vec;
>+  vec.push_back(Variant(10));
>+  vec.push_back(Variant(20.0f));
>+
>+  // Vector resizing should work if we supply a value for new slots
>+  vec.resize(10, Variant(0));
>+}
>+
>+// Test that a variant with a non-copyable type can be constructed and
>+// manipulated to some degree.
>+TEST(VariantTest, TestVariantWithNonCopyableType) {
>+  typedef variant<int, NonCopyable> Variant;
>+  const int kValue = 1;
>+  Variant v(kValue);
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+  EXPECT_EQ(kValue, absl::get<int>(v));
>+}
>+
>+// Test that a variant with a non-copyable type can be transformed to
>+// the non-copyable type with a call to `emplace` for different numbers
>+// of arguments. We do not need to test this for each of T1 ... T8
>+// because `emplace` does not overload on T1 ... to T8, so if this
>+// works for any one of T1 ... T8, then it works for all of them. We
>+// do need to test that it works with varying numbers of parameters
>+// though.
>+TEST(VariantTest, TestEmplace) {
>+  typedef variant<int, NonCopyable> Variant;
>+  const int kValue = 1;
>+  Variant v(kValue);
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+  EXPECT_EQ(kValue, absl::get<int>(v));
>+
>+  // emplace with zero arguments, then back to 'int'
>+  v.emplace<NonCopyable>();
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(0, absl::get<NonCopyable>(v).value);
>+  v = kValue;
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+
>+  // emplace with one argument:
>+  v.emplace<NonCopyable>(1);
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(1, absl::get<NonCopyable>(v).value);
>+  v = kValue;
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+
>+  // emplace with two arguments:
>+  v.emplace<NonCopyable>(1, 2);
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(3, absl::get<NonCopyable>(v).value);
>+  v = kValue;
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+
>+  // emplace with three arguments
>+  v.emplace<NonCopyable>(1, 2, 3);
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(6, absl::get<NonCopyable>(v).value);
>+  v = kValue;
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+
>+  // emplace with four arguments
>+  v.emplace<NonCopyable>(1, 2, 3, 4);
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(10, absl::get<NonCopyable>(v).value);
>+  v = kValue;
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+}
>+
>+TEST(VariantTest, TestEmplaceDestroysCurrentValue) {
>+  typedef variant<int, IncrementInDtor, NonCopyable> Variant;
>+  int counter = 0;
>+  Variant v(0);
>+  ASSERT_TRUE(absl::holds_alternative<int>(v));
>+  v.emplace<IncrementInDtor>(&counter);
>+  ASSERT_TRUE(absl::holds_alternative<IncrementInDtor>(v));
>+  ASSERT_EQ(0, counter);
>+  v.emplace<NonCopyable>();
>+  ASSERT_TRUE(absl::holds_alternative<NonCopyable>(v));
>+  EXPECT_EQ(1, counter);
>+}
>+
>+TEST(VariantTest, TestMoveSemantics) {
>+  typedef variant<std::unique_ptr<int>, std::unique_ptr<std::string>> Variant;
>+
>+  // Construct a variant by moving from an element value.
>+  Variant v(absl::WrapUnique(new int(10)));
>+  EXPECT_TRUE(absl::holds_alternative<std::unique_ptr<int>>(v));
>+
>+  // Construct a variant by moving from another variant.
>+  Variant v2(absl::move(v));
>+  ASSERT_TRUE(absl::holds_alternative<std::unique_ptr<int>>(v2));
>+  ASSERT_NE(nullptr, absl::get<std::unique_ptr<int>>(v2));
>+  EXPECT_EQ(10, *absl::get<std::unique_ptr<int>>(v2));
>+
>+  // Moving from a variant object leaves it holding moved-from value of the
>+  // same element type.
>+  EXPECT_TRUE(absl::holds_alternative<std::unique_ptr<int>>(v));
>+  ASSERT_NE(nullptr, absl::get_if<std::unique_ptr<int>>(&v));
>+  EXPECT_EQ(nullptr, absl::get<std::unique_ptr<int>>(v));
>+
>+  // Assign a variant from an element value by move.
>+  v = absl::make_unique<std::string>("foo");
>+  ASSERT_TRUE(absl::holds_alternative<std::unique_ptr<std::string>>(v));
>+  EXPECT_EQ("foo", *absl::get<std::unique_ptr<std::string>>(v));
>+
>+  // Move-assign a variant.
>+  v2 = absl::move(v);
>+  ASSERT_TRUE(absl::holds_alternative<std::unique_ptr<std::string>>(v2));
>+  EXPECT_EQ("foo", *absl::get<std::unique_ptr<std::string>>(v2));
>+  EXPECT_TRUE(absl::holds_alternative<std::unique_ptr<std::string>>(v));
>+}
>+
>+variant<int, std::string> PassThrough(const variant<int, std::string>& arg) {
>+  return arg;
>+}
>+
>+TEST(VariantTest, TestImplicitConversion) {
>+  EXPECT_TRUE(absl::holds_alternative<int>(PassThrough(0)));
>+
>+  // We still need the explicit cast for std::string, because C++ won't apply
>+  // two user-defined implicit conversions in a row.
>+  EXPECT_TRUE(absl::holds_alternative<std::string>(PassThrough(std::string("foo"))));
>+}
>+
>+struct Convertible2;
>+struct Convertible1 {
>+  Convertible1() {}
>+  Convertible1(const Convertible1&) {}
>+  Convertible1& operator=(const Convertible1&) { return *this; }
>+
>+  // implicit conversion from Convertible2
>+  Convertible1(const Convertible2&) {}  // NOLINT(runtime/explicit)
>+};
>+
>+struct Convertible2 {
>+  Convertible2() {}
>+  Convertible2(const Convertible2&) {}
>+  Convertible2& operator=(const Convertible2&) { return *this; }
>+
>+  // implicit conversion from Convertible1
>+  Convertible2(const Convertible1&) {}  // NOLINT(runtime/explicit)
>+};
>+
>+TEST(VariantTest, TestRvalueConversion) {
>+  variant<double, std::string> var(
>+      ConvertVariantTo<variant<double, std::string>>(variant<std::string, int>(0)));
>+  ASSERT_TRUE(absl::holds_alternative<double>(var));
>+  EXPECT_EQ(0.0, absl::get<double>(var));
>+
>+  var = ConvertVariantTo<variant<double, std::string>>(
>+      variant<const char*, float>("foo"));
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(var));
>+  EXPECT_EQ("foo", absl::get<std::string>(var));
>+
>+  variant<double> singleton(
>+      ConvertVariantTo<variant<double>>(variant<int, float>(42)));
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_EQ(42.0, absl::get<double>(singleton));
>+
>+  singleton = ConvertVariantTo<variant<double>>(variant<int, float>(3.14f));
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_FLOAT_EQ(3.14f, static_cast<float>(absl::get<double>(singleton)));
>+
>+  singleton = ConvertVariantTo<variant<double>>(variant<int>(0));
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_EQ(0.0, absl::get<double>(singleton));
>+
>+  variant<int32_t, uint32_t> variant2(
>+      ConvertVariantTo<variant<int32_t, uint32_t>>(variant<int32_t>(42)));
>+  ASSERT_TRUE(absl::holds_alternative<int32_t>(variant2));
>+  EXPECT_EQ(42, absl::get<int32_t>(variant2));
>+
>+  variant2 = ConvertVariantTo<variant<int32_t, uint32_t>>(variant<uint32_t>(42));
>+  ASSERT_TRUE(absl::holds_alternative<uint32_t>(variant2));
>+  EXPECT_EQ(42, absl::get<uint32_t>(variant2));
>+
>+  variant<Convertible1, Convertible2> variant3(
>+      ConvertVariantTo<variant<Convertible1, Convertible2>>(
>+          (variant<Convertible2, Convertible1>(Convertible1()))));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible1>(variant3));
>+
>+  variant3 = ConvertVariantTo<variant<Convertible1, Convertible2>>(
>+      variant<Convertible2, Convertible1>(Convertible2()));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible2>(variant3));
>+}
>+
>+TEST(VariantTest, TestLvalueConversion) {
>+  variant<std::string, int> source1 = 0;
>+  variant<double, std::string> destination(
>+      ConvertVariantTo<variant<double, std::string>>(source1));
>+  ASSERT_TRUE(absl::holds_alternative<double>(destination));
>+  EXPECT_EQ(0.0, absl::get<double>(destination));
>+
>+  variant<const char*, float> source2 = "foo";
>+  destination = ConvertVariantTo<variant<double, std::string>>(source2);
>+  ASSERT_TRUE(absl::holds_alternative<std::string>(destination));
>+  EXPECT_EQ("foo", absl::get<std::string>(destination));
>+
>+  variant<int, float> source3(42);
>+  variant<double> singleton(ConvertVariantTo<variant<double>>(source3));
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_EQ(42.0, absl::get<double>(singleton));
>+
>+  source3 = 3.14f;
>+  singleton = ConvertVariantTo<variant<double>>(source3);
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_FLOAT_EQ(3.14f, static_cast<float>(absl::get<double>(singleton)));
>+
>+  variant<int> source4(0);
>+  singleton = ConvertVariantTo<variant<double>>(source4);
>+  ASSERT_TRUE(absl::holds_alternative<double>(singleton));
>+  EXPECT_EQ(0.0, absl::get<double>(singleton));
>+
>+  variant<int32_t> source5(42);
>+  variant<int32_t, uint32_t> variant2(
>+      ConvertVariantTo<variant<int32_t, uint32_t>>(source5));
>+  ASSERT_TRUE(absl::holds_alternative<int32_t>(variant2));
>+  EXPECT_EQ(42, absl::get<int32_t>(variant2));
>+
>+  variant<uint32_t> source6(42);
>+  variant2 = ConvertVariantTo<variant<int32_t, uint32_t>>(source6);
>+  ASSERT_TRUE(absl::holds_alternative<uint32_t>(variant2));
>+  EXPECT_EQ(42, absl::get<uint32_t>(variant2));
>+
>+  variant<Convertible2, Convertible1> source7((Convertible1()));
>+  variant<Convertible1, Convertible2> variant3(
>+      ConvertVariantTo<variant<Convertible1, Convertible2>>(source7));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible1>(variant3));
>+
>+  source7 = Convertible2();
>+  variant3 = ConvertVariantTo<variant<Convertible1, Convertible2>>(source7);
>+  ASSERT_TRUE(absl::holds_alternative<Convertible2>(variant3));
>+}
>+
>+TEST(VariantTest, TestMoveConversion) {
>+  using Variant =
>+      variant<std::unique_ptr<const int>, std::unique_ptr<const std::string>>;
>+  using OtherVariant = variant<std::unique_ptr<int>, std::unique_ptr<std::string>>;
>+
>+  Variant var(
>+      ConvertVariantTo<Variant>(OtherVariant{absl::make_unique<int>(0)}));
>+  ASSERT_TRUE(absl::holds_alternative<std::unique_ptr<const int>>(var));
>+  ASSERT_NE(absl::get<std::unique_ptr<const int>>(var), nullptr);
>+  EXPECT_EQ(0, *absl::get<std::unique_ptr<const int>>(var));
>+
>+  var =
>+      ConvertVariantTo<Variant>(OtherVariant(absl::make_unique<std::string>("foo")));
>+  ASSERT_TRUE(absl::holds_alternative<std::unique_ptr<const std::string>>(var));
>+  EXPECT_EQ("foo", *absl::get<std::unique_ptr<const std::string>>(var));
>+}
>+
>+TEST(VariantTest, DoesNotMoveFromLvalues) {
>+  // We use shared_ptr here because it's both copyable and movable, and
>+  // a moved-from shared_ptr is guaranteed to be null, so we can detect
>+  // whether moving or copying has occurred.
>+  using Variant =
>+      variant<std::shared_ptr<const int>, std::shared_ptr<const std::string>>;
>+  using OtherVariant = variant<std::shared_ptr<int>, std::shared_ptr<std::string>>;
>+
>+  Variant v1(std::make_shared<const int>(0));
>+
>+  // Test copy constructor
>+  Variant v2(v1);
>+  EXPECT_EQ(absl::get<std::shared_ptr<const int>>(v1),
>+            absl::get<std::shared_ptr<const int>>(v2));
>+
>+  // Test copy-assignment operator
>+  v1 = std::make_shared<const std::string>("foo");
>+  v2 = v1;
>+  EXPECT_EQ(absl::get<std::shared_ptr<const std::string>>(v1),
>+            absl::get<std::shared_ptr<const std::string>>(v2));
>+
>+  // Test converting copy constructor
>+  OtherVariant other(std::make_shared<int>(0));
>+  Variant v3(ConvertVariantTo<Variant>(other));
>+  EXPECT_EQ(absl::get<std::shared_ptr<int>>(other),
>+            absl::get<std::shared_ptr<const int>>(v3));
>+
>+  other = std::make_shared<std::string>("foo");
>+  v3 = ConvertVariantTo<Variant>(other);
>+  EXPECT_EQ(absl::get<std::shared_ptr<std::string>>(other),
>+            absl::get<std::shared_ptr<const std::string>>(v3));
>+}
>+
>+TEST(VariantTest, TestRvalueConversionViaConvertVariantTo) {
>+  variant<double, std::string> var(
>+      ConvertVariantTo<variant<double, std::string>>(variant<std::string, int>(3)));
>+  EXPECT_THAT(absl::get_if<double>(&var), Pointee(3.0));
>+
>+  var = ConvertVariantTo<variant<double, std::string>>(
>+      variant<const char*, float>("foo"));
>+  EXPECT_THAT(absl::get_if<std::string>(&var), Pointee(std::string("foo")));
>+
>+  variant<double> singleton(
>+      ConvertVariantTo<variant<double>>(variant<int, float>(42)));
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(42.0));
>+
>+  singleton = ConvertVariantTo<variant<double>>(variant<int, float>(3.14f));
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(DoubleEq(3.14f)));
>+
>+  singleton = ConvertVariantTo<variant<double>>(variant<int>(3));
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(3.0));
>+
>+  variant<int32_t, uint32_t> variant2(
>+      ConvertVariantTo<variant<int32_t, uint32_t>>(variant<int32_t>(42)));
>+  EXPECT_THAT(absl::get_if<int32_t>(&variant2), Pointee(42));
>+
>+  variant2 = ConvertVariantTo<variant<int32_t, uint32_t>>(variant<uint32_t>(42));
>+  EXPECT_THAT(absl::get_if<uint32_t>(&variant2), Pointee(42));
>+
>+  variant<Convertible1, Convertible2> variant3(
>+      ConvertVariantTo<variant<Convertible1, Convertible2>>(
>+          (variant<Convertible2, Convertible1>(Convertible1()))));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible1>(variant3));
>+
>+  variant3 = ConvertVariantTo<variant<Convertible1, Convertible2>>(
>+      variant<Convertible2, Convertible1>(Convertible2()));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible2>(variant3));
>+}
>+
>+TEST(VariantTest, TestLvalueConversionViaConvertVariantTo) {
>+  variant<std::string, int> source1 = 3;
>+  variant<double, std::string> destination(
>+      ConvertVariantTo<variant<double, std::string>>(source1));
>+  EXPECT_THAT(absl::get_if<double>(&destination), Pointee(3.0));
>+
>+  variant<const char*, float> source2 = "foo";
>+  destination = ConvertVariantTo<variant<double, std::string>>(source2);
>+  EXPECT_THAT(absl::get_if<std::string>(&destination), Pointee(std::string("foo")));
>+
>+  variant<int, float> source3(42);
>+  variant<double> singleton(ConvertVariantTo<variant<double>>(source3));
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(42.0));
>+
>+  source3 = 3.14f;
>+  singleton = ConvertVariantTo<variant<double>>(source3);
>+  EXPECT_FLOAT_EQ(3.14f, static_cast<float>(absl::get<double>(singleton)));
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(DoubleEq(3.14f)));
>+
>+  variant<int> source4(3);
>+  singleton = ConvertVariantTo<variant<double>>(source4);
>+  EXPECT_THAT(absl::get_if<double>(&singleton), Pointee(3.0));
>+
>+  variant<int32_t> source5(42);
>+  variant<int32_t, uint32_t> variant2(
>+      ConvertVariantTo<variant<int32_t, uint32_t>>(source5));
>+  EXPECT_THAT(absl::get_if<int32_t>(&variant2), Pointee(42));
>+
>+  variant<uint32_t> source6(42);
>+  variant2 = ConvertVariantTo<variant<int32_t, uint32_t>>(source6);
>+  EXPECT_THAT(absl::get_if<uint32_t>(&variant2), Pointee(42));
>+
>+  variant<Convertible2, Convertible1> source7((Convertible1()));
>+  variant<Convertible1, Convertible2> variant3(
>+      ConvertVariantTo<variant<Convertible1, Convertible2>>(source7));
>+  ASSERT_TRUE(absl::holds_alternative<Convertible1>(variant3));
>+
>+  source7 = Convertible2();
>+  variant3 = ConvertVariantTo<variant<Convertible1, Convertible2>>(source7);
>+  ASSERT_TRUE(absl::holds_alternative<Convertible2>(variant3));
>+}
>+
>+TEST(VariantTest, TestMoveConversionViaConvertVariantTo) {
>+  using Variant =
>+      variant<std::unique_ptr<const int>, std::unique_ptr<const std::string>>;
>+  using OtherVariant = variant<std::unique_ptr<int>, std::unique_ptr<std::string>>;
>+
>+  Variant var(
>+      ConvertVariantTo<Variant>(OtherVariant{absl::make_unique<int>(3)}));
>+  EXPECT_THAT(absl::get_if<std::unique_ptr<const int>>(&var),
>+              Pointee(Pointee(3)));
>+
>+  var =
>+      ConvertVariantTo<Variant>(OtherVariant(absl::make_unique<std::string>("foo")));
>+  EXPECT_THAT(absl::get_if<std::unique_ptr<const std::string>>(&var),
>+              Pointee(Pointee(std::string("foo"))));
>+}
>+
>+// If all alternatives are trivially copy/move constructible, variant should
>+// also be trivially copy/move constructible. This is not required by the
>+// standard and we know that libstdc++ variant doesn't have this feature.
>+// For more details see the paper:
>+// http://open-std.org/JTC1/SC22/WG21/docs/papers/2017/p0602r0.html
>+#if !(defined(ABSL_HAVE_STD_VARIANT) && defined(__GLIBCXX__))
>+#define ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY 1
>+#endif
>+
>+TEST(VariantTest, TestCopyAndMoveTypeTraits) {
>+  EXPECT_TRUE(std::is_copy_constructible<variant<std::string>>::value);
>+  EXPECT_TRUE(std::is_copy_assignable<variant<std::string>>::value);
>+  EXPECT_TRUE(std::is_move_constructible<variant<std::string>>::value);
>+  EXPECT_TRUE(std::is_move_assignable<variant<std::string>>::value);
>+  EXPECT_TRUE(std::is_move_constructible<variant<std::unique_ptr<int>>>::value);
>+  EXPECT_TRUE(std::is_move_assignable<variant<std::unique_ptr<int>>>::value);
>+  EXPECT_FALSE(
>+      std::is_copy_constructible<variant<std::unique_ptr<int>>>::value);
>+  EXPECT_FALSE(std::is_copy_assignable<variant<std::unique_ptr<int>>>::value);
>+
>+  EXPECT_FALSE(
>+      absl::is_trivially_copy_constructible<variant<std::string>>::value);
>+  EXPECT_FALSE(absl::is_trivially_copy_assignable<variant<std::string>>::value);
>+#if ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+  EXPECT_TRUE(absl::is_trivially_copy_constructible<variant<int>>::value);
>+  EXPECT_TRUE(absl::is_trivially_copy_assignable<variant<int>>::value);
>+  EXPECT_TRUE(is_trivially_move_constructible<variant<int>>::value);
>+  EXPECT_TRUE(is_trivially_move_assignable<variant<int>>::value);
>+#endif  // ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+}
>+
>+TEST(VariantTest, TestVectorOfMoveonlyVariant) {
>+  // Verify that variant<MoveonlyType> works correctly as a std::vector element.
>+  std::vector<variant<std::unique_ptr<int>, std::string>> vec;
>+  vec.push_back(absl::make_unique<int>(42));
>+  vec.emplace_back("Hello");
>+  vec.reserve(3);
>+  auto another_vec = absl::move(vec);
>+  // As a sanity check, verify vector contents.
>+  ASSERT_EQ(2, another_vec.size());
>+  EXPECT_EQ(42, *absl::get<std::unique_ptr<int>>(another_vec[0]));
>+  EXPECT_EQ("Hello", absl::get<std::string>(another_vec[1]));
>+}
>+
>+TEST(VariantTest, NestedVariant) {
>+#if ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+  static_assert(absl::is_trivially_copy_constructible<variant<int>>(), "");
>+  static_assert(absl::is_trivially_copy_assignable<variant<int>>(), "");
>+  static_assert(is_trivially_move_constructible<variant<int>>(), "");
>+  static_assert(is_trivially_move_assignable<variant<int>>(), "");
>+
>+  static_assert(absl::is_trivially_copy_constructible<variant<variant<int>>>(),
>+                "");
>+  static_assert(absl::is_trivially_copy_assignable<variant<variant<int>>>(),
>+                "");
>+  static_assert(is_trivially_move_constructible<variant<variant<int>>>(), "");
>+  static_assert(is_trivially_move_assignable<variant<variant<int>>>(), "");
>+#endif  // ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+
>+  variant<int> x(42);
>+  variant<variant<int>> y(x);
>+  variant<variant<int>> z(y);
>+  EXPECT_TRUE(absl::holds_alternative<variant<int>>(z));
>+  EXPECT_EQ(x, absl::get<variant<int>>(z));
>+}
>+
>+struct TriviallyDestructible {
>+  TriviallyDestructible(TriviallyDestructible&&) {}
>+  TriviallyDestructible(const TriviallyDestructible&) {}
>+  TriviallyDestructible& operator=(TriviallyDestructible&&) { return *this; }
>+  TriviallyDestructible& operator=(const TriviallyDestructible&) {
>+    return *this;
>+  }
>+};
>+
>+struct TriviallyMovable {
>+  TriviallyMovable(TriviallyMovable&&) = default;
>+  TriviallyMovable(TriviallyMovable const&) {}
>+  TriviallyMovable& operator=(const TriviallyMovable&) { return *this; }
>+};
>+
>+struct TriviallyCopyable {
>+  TriviallyCopyable(const TriviallyCopyable&) = default;
>+  TriviallyCopyable& operator=(const TriviallyCopyable&) { return *this; }
>+};
>+
>+struct TriviallyMoveAssignable {
>+  TriviallyMoveAssignable(TriviallyMoveAssignable&&) = default;
>+  TriviallyMoveAssignable(const TriviallyMoveAssignable&) {}
>+  TriviallyMoveAssignable& operator=(TriviallyMoveAssignable&&) = default;
>+  TriviallyMoveAssignable& operator=(const TriviallyMoveAssignable&) {
>+    return *this;
>+  }
>+};
>+
>+struct TriviallyCopyAssignable {};
>+
>+#if ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+TEST(VariantTest, TestTriviality) {
>+  {
>+    using TrivDestVar = absl::variant<TriviallyDestructible>;
>+
>+    EXPECT_FALSE(is_trivially_move_constructible<TrivDestVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_constructible<TrivDestVar>::value);
>+    EXPECT_FALSE(is_trivially_move_assignable<TrivDestVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_assignable<TrivDestVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_destructible<TrivDestVar>::value);
>+  }
>+
>+  {
>+    using TrivMoveVar = absl::variant<TriviallyMovable>;
>+
>+    EXPECT_TRUE(is_trivially_move_constructible<TrivMoveVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_constructible<TrivMoveVar>::value);
>+    EXPECT_FALSE(is_trivially_move_assignable<TrivMoveVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_assignable<TrivMoveVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_destructible<TrivMoveVar>::value);
>+  }
>+
>+  {
>+    using TrivCopyVar = absl::variant<TriviallyCopyable>;
>+
>+    EXPECT_TRUE(is_trivially_move_constructible<TrivCopyVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_copy_constructible<TrivCopyVar>::value);
>+    EXPECT_FALSE(is_trivially_move_assignable<TrivCopyVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_assignable<TrivCopyVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_destructible<TrivCopyVar>::value);
>+  }
>+
>+  {
>+    using TrivMoveAssignVar = absl::variant<TriviallyMoveAssignable>;
>+
>+    EXPECT_TRUE(is_trivially_move_constructible<TrivMoveAssignVar>::value);
>+    EXPECT_FALSE(
>+        absl::is_trivially_copy_constructible<TrivMoveAssignVar>::value);
>+    EXPECT_TRUE(is_trivially_move_assignable<TrivMoveAssignVar>::value);
>+    EXPECT_FALSE(absl::is_trivially_copy_assignable<TrivMoveAssignVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_destructible<TrivMoveAssignVar>::value);
>+  }
>+
>+  {
>+    using TrivCopyAssignVar = absl::variant<TriviallyCopyAssignable>;
>+
>+    EXPECT_TRUE(is_trivially_move_constructible<TrivCopyAssignVar>::value);
>+    EXPECT_TRUE(
>+        absl::is_trivially_copy_constructible<TrivCopyAssignVar>::value);
>+    EXPECT_TRUE(is_trivially_move_assignable<TrivCopyAssignVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_copy_assignable<TrivCopyAssignVar>::value);
>+    EXPECT_TRUE(absl::is_trivially_destructible<TrivCopyAssignVar>::value);
>+  }
>+}
>+#endif  // ABSL_VARIANT_PROPAGATE_COPY_MOVE_TRIVIALITY
>+
>+// To verify that absl::variant correctly use the nontrivial move ctor of its
>+// member rather than use the trivial copy constructor.
>+TEST(VariantTest, MoveCtorBug) {
>+  // To simulate std::tuple in libstdc++.
>+  struct TrivialCopyNontrivialMove {
>+    TrivialCopyNontrivialMove() = default;
>+    TrivialCopyNontrivialMove(const TrivialCopyNontrivialMove&) = default;
>+    TrivialCopyNontrivialMove(TrivialCopyNontrivialMove&&) { called = true; }
>+    bool called = false;
>+  };
>+  {
>+    using V = absl::variant<TrivialCopyNontrivialMove, int>;
>+    V v1(absl::in_place_index_t<0>{});
>+    // this should invoke the move ctor, rather than the trivial copy ctor.
>+    V v2(std::move(v1));
>+    EXPECT_TRUE(absl::get<0>(v2).called);
>+  }
>+  {
>+    // this case failed to compile before our fix due to a GCC bug.
>+    using V = absl::variant<int, TrivialCopyNontrivialMove>;
>+    V v1(absl::in_place_index_t<1>{});
>+    // this should invoke the move ctor, rather than the trivial copy ctor.
>+    V v2(std::move(v1));
>+    EXPECT_TRUE(absl::get<1>(v2).called);
>+  }
>+}
>+
>+}  // namespace
>+}  // namespace absl
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.bazel b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.bazel
>new file mode 100644
>index 0000000000000000000000000000000000000000..c01b49bc97dd1d2ceeb4780cbe93d14ffe654a69
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.bazel
>@@ -0,0 +1,33 @@
>+load(
>+    "//absl:copts.bzl",
>+    "ABSL_DEFAULT_COPTS",
>+    "ABSL_TEST_COPTS",
>+)
>+
>+package(default_visibility = ["//visibility:public"])
>+
>+licenses(["notice"])  # Apache 2.0
>+
>+cc_library(
>+    name = "utility",
>+    hdrs = ["utility.h"],
>+    copts = ABSL_DEFAULT_COPTS,
>+    deps = [
>+        "//absl/base:base_internal",
>+        "//absl/base:config",
>+        "//absl/meta:type_traits",
>+    ],
>+)
>+
>+cc_test(
>+    name = "utility_test",
>+    srcs = ["utility_test.cc"],
>+    copts = ABSL_TEST_COPTS,
>+    deps = [
>+        ":utility",
>+        "//absl/base:core_headers",
>+        "//absl/memory",
>+        "//absl/strings",
>+        "@com_google_googletest//:gtest_main",
>+    ],
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..4cf3c810e6577838ac92b602f5d49d6dee1d14fa
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/BUILD.gn
>@@ -0,0 +1,32 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//build_overrides/build.gni")
>+
>+if (build_with_chromium) {
>+  visibility = [
>+    "//third_party/webrtc/*",
>+    "//third_party/abseil-cpp/*",
>+    "//third_party/googletest:gtest",
>+  ]
>+} else {
>+  visibility = [ "*" ]
>+}
>+
>+source_set("utility") {
>+  configs -= [ "//build/config/compiler:chromium_code" ]
>+  configs += [
>+    "//build/config/compiler:no_chromium_code",
>+    "//third_party/abseil-cpp:absl_default_cflags_cc",
>+  ]
>+  public_configs = [ "//third_party/abseil-cpp:absl_include_config" ]
>+  public = [
>+    "utility.h",
>+  ]
>+  deps = [
>+    "../base:base_internal",
>+    "../base:config",
>+    "../meta:type_traits",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/CMakeLists.txt b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/CMakeLists.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..dc3a63190546884629107478582b2b89a8efcd96
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/CMakeLists.txt
>@@ -0,0 +1,52 @@
>+#
>+# Copyright 2017 The Abseil Authors.
>+#
>+# Licensed under the Apache License, Version 2.0 (the "License");
>+# you may not use this file except in compliance with the License.
>+# You may obtain a copy of the License at
>+#
>+#      http://www.apache.org/licenses/LICENSE-2.0
>+#
>+# Unless required by applicable law or agreed to in writing, software
>+# distributed under the License is distributed on an "AS IS" BASIS,
>+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+# See the License for the specific language governing permissions and
>+# limitations under the License.
>+#
>+
>+
>+list(APPEND UTILITY_PUBLIC_HEADERS
>+  "utility.h"
>+)
>+
>+absl_header_library(
>+  TARGET
>+    absl_utility
>+  PUBLIC_LIBRARIES
>+    absl::base
>+  EXPORT_NAME
>+    utility
>+)
>+
>+
>+#
>+## TESTS
>+#
>+
>+# test utility_test
>+set(UTILITY_TEST_SRC "utility_test.cc")
>+set(UTILITY_TEST_PUBLIC_LIBRARIES
>+  absl::base
>+  absl::memory
>+  absl::strings
>+  absl::utility
>+)
>+
>+absl_test(
>+  TARGET
>+    utility_test
>+  SOURCES
>+    ${UTILITY_TEST_SRC}
>+  PUBLIC_LIBRARIES
>+    ${UTILITY_TEST_PUBLIC_LIBRARIES}
>+)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility.h b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..d73602c47d3b6da166357fbcdc5d41519d623561
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility.h
>@@ -0,0 +1,291 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+//
>+// This header file contains C++11 versions of standard <utility> header
>+// abstractions available within C++14 and C++17, and are designed to be drop-in
>+// replacement for code compliant with C++14 and C++17.
>+//
>+// The following abstractions are defined:
>+//
>+//   * integer_sequence<T, Ints...>  == std::integer_sequence<T, Ints...>
>+//   * index_sequence<Ints...>       == std::index_sequence<Ints...>
>+//   * make_integer_sequence<T, N>   == std::make_integer_sequence<T, N>
>+//   * make_index_sequence<N>        == std::make_index_sequence<N>
>+//   * index_sequence_for<Ts...>     == std::index_sequence_for<Ts...>
>+//   * apply<Functor, Tuple>         == std::apply<Functor, Tuple>
>+//   * exchange<T>                   == std::exchange<T>
>+//
>+// This header file also provides the tag types `in_place_t`, `in_place_type_t`,
>+// and `in_place_index_t`, as well as the constant `in_place`, and
>+// `constexpr` `std::move()` and `std::forward()` implementations in C++11.
>+//
>+// References:
>+//
>+//  http://en.cppreference.com/w/cpp/utility/integer_sequence
>+//  http://en.cppreference.com/w/cpp/utility/apply
>+//  http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3658.html
>+//
>+
>+#ifndef ABSL_UTILITY_UTILITY_H_
>+#define ABSL_UTILITY_UTILITY_H_
>+
>+#include <cstddef>
>+#include <cstdlib>
>+#include <tuple>
>+#include <utility>
>+
>+#include "absl/base/config.h"
>+#include "absl/base/internal/inline_variable.h"
>+#include "absl/base/internal/invoke.h"
>+#include "absl/meta/type_traits.h"
>+
>+namespace absl {
>+
>+// integer_sequence
>+//
>+// Class template representing a compile-time integer sequence. An instantiation
>+// of `integer_sequence<T, Ints...>` has a sequence of integers encoded in its
>+// type through its template arguments (which is a common need when
>+// working with C++11 variadic templates). `absl::integer_sequence` is designed
>+// to be a drop-in replacement for C++14's `std::integer_sequence`.
>+//
>+// Example:
>+//
>+//   template< class T, T... Ints >
>+//   void user_function(integer_sequence<T, Ints...>);
>+//
>+//   int main()
>+//   {
>+//     // user_function's `T` will be deduced to `int` and `Ints...`
>+//     // will be deduced to `0, 1, 2, 3, 4`.
>+//     user_function(make_integer_sequence<int, 5>());
>+//   }
>+template <typename T, T... Ints>
>+struct integer_sequence {
>+  using value_type = T;
>+  static constexpr size_t size() noexcept { return sizeof...(Ints); }
>+};
>+
>+// index_sequence
>+//
>+// A helper template for an `integer_sequence` of `size_t`,
>+// `absl::index_sequence` is designed to be a drop-in replacement for C++14's
>+// `std::index_sequence`.
>+template <size_t... Ints>
>+using index_sequence = integer_sequence<size_t, Ints...>;
>+
>+namespace utility_internal {
>+
>+template <typename Seq, size_t SeqSize, size_t Rem>
>+struct Extend;
>+
>+// Note that SeqSize == sizeof...(Ints). It's passed explicitly for efficiency.
>+template <typename T, T... Ints, size_t SeqSize>
>+struct Extend<integer_sequence<T, Ints...>, SeqSize, 0> {
>+  using type = integer_sequence<T, Ints..., (Ints + SeqSize)...>;
>+};
>+
>+template <typename T, T... Ints, size_t SeqSize>
>+struct Extend<integer_sequence<T, Ints...>, SeqSize, 1> {
>+  using type = integer_sequence<T, Ints..., (Ints + SeqSize)..., 2 * SeqSize>;
>+};
>+
>+// Recursion helper for 'make_integer_sequence<T, N>'.
>+// 'Gen<T, N>::type' is an alias for 'integer_sequence<T, 0, 1, ... N-1>'.
>+template <typename T, size_t N>
>+struct Gen {
>+  using type =
>+      typename Extend<typename Gen<T, N / 2>::type, N / 2, N % 2>::type;
>+};
>+
>+template <typename T>
>+struct Gen<T, 0> {
>+  using type = integer_sequence<T>;
>+};
>+
>+}  // namespace utility_internal
>+
>+// Compile-time sequences of integers
>+
>+// make_integer_sequence
>+//
>+// This template alias is equivalent to
>+// `integer_sequence<int, 0, 1, ..., N-1>`, and is designed to be a drop-in
>+// replacement for C++14's `std::make_integer_sequence`.
>+template <typename T, T N>
>+using make_integer_sequence = typename utility_internal::Gen<T, N>::type;
>+
>+// make_index_sequence
>+//
>+// This template alias is equivalent to `index_sequence<0, 1, ..., N-1>`,
>+// and is designed to be a drop-in replacement for C++14's
>+// `std::make_index_sequence`.
>+template <size_t N>
>+using make_index_sequence = make_integer_sequence<size_t, N>;
>+
>+// index_sequence_for
>+//
>+// Converts a typename pack into an index sequence of the same length, and
>+// is designed to be a drop-in replacement for C++14's
>+// `std::index_sequence_for()`
>+template <typename... Ts>
>+using index_sequence_for = make_index_sequence<sizeof...(Ts)>;
>+
>+// Tag types
>+
>+#ifdef ABSL_HAVE_STD_OPTIONAL
>+
>+using std::in_place_t;
>+using std::in_place;
>+
>+#else  // ABSL_HAVE_STD_OPTIONAL
>+
>+// in_place_t
>+//
>+// Tag type used to specify in-place construction, such as with
>+// `absl::optional`, designed to be a drop-in replacement for C++17's
>+// `std::in_place_t`.
>+struct in_place_t {};
>+
>+ABSL_INTERNAL_INLINE_CONSTEXPR(in_place_t, in_place, {});
>+
>+#endif  // ABSL_HAVE_STD_OPTIONAL
>+
>+#if defined(ABSL_HAVE_STD_ANY) || defined(ABSL_HAVE_STD_VARIANT)
>+using std::in_place_type_t;
>+#else
>+
>+// in_place_type_t
>+//
>+// Tag type used for in-place construction when the type to construct needs to
>+// be specified, such as with `absl::any`, designed to be a drop-in replacement
>+// for C++17's `std::in_place_type_t`.
>+template <typename T>
>+struct in_place_type_t {};
>+#endif  // ABSL_HAVE_STD_ANY || ABSL_HAVE_STD_VARIANT
>+
>+#ifdef ABSL_HAVE_STD_VARIANT
>+using std::in_place_index_t;
>+#else
>+
>+// in_place_index_t
>+//
>+// Tag type used for in-place construction when the type to construct needs to
>+// be specified, such as with `absl::any`, designed to be a drop-in replacement
>+// for C++17's `std::in_place_index_t`.
>+template <size_t I>
>+struct in_place_index_t {};
>+#endif  // ABSL_HAVE_STD_VARIANT
>+
>+// Constexpr move and forward
>+
>+// move()
>+//
>+// A constexpr version of `std::move()`, designed to be a drop-in replacement
>+// for C++14's `std::move()`.
>+template <typename T>
>+constexpr absl::remove_reference_t<T>&& move(T&& t) noexcept {
>+  return static_cast<absl::remove_reference_t<T>&&>(t);
>+}
>+
>+// forward()
>+//
>+// A constexpr version of `std::forward()`, designed to be a drop-in replacement
>+// for C++14's `std::forward()`.
>+template <typename T>
>+constexpr T&& forward(
>+    absl::remove_reference_t<T>& t) noexcept {  // NOLINT(runtime/references)
>+  return static_cast<T&&>(t);
>+}
>+
>+namespace utility_internal {
>+// Helper method for expanding tuple into a called method.
>+template <typename Functor, typename Tuple, std::size_t... Indexes>
>+auto apply_helper(Functor&& functor, Tuple&& t, index_sequence<Indexes...>)
>+    -> decltype(absl::base_internal::Invoke(
>+        absl::forward<Functor>(functor),
>+        std::get<Indexes>(absl::forward<Tuple>(t))...)) {
>+  return absl::base_internal::Invoke(
>+      absl::forward<Functor>(functor),
>+      std::get<Indexes>(absl::forward<Tuple>(t))...);
>+}
>+
>+}  // namespace utility_internal
>+
>+// apply
>+//
>+// Invokes a Callable using elements of a tuple as its arguments.
>+// Each element of the tuple corresponds to an argument of the call (in order).
>+// Both the Callable argument and the tuple argument are perfect-forwarded.
>+// For member-function Callables, the first tuple element acts as the `this`
>+// pointer. `absl::apply` is designed to be a drop-in replacement for C++17's
>+// `std::apply`. Unlike C++17's `std::apply`, this is not currently `constexpr`.
>+//
>+// Example:
>+//
>+//   class Foo{void Bar(int);};
>+//   void user_function(int, std::string);
>+//   void user_function(std::unique_ptr<Foo>);
>+//
>+//   int main()
>+//   {
>+//       std::tuple<int, std::string> tuple1(42, "bar");
>+//       // Invokes the user function overload on int, std::string.
>+//       absl::apply(&user_function, tuple1);
>+//
>+//       auto foo = absl::make_unique<Foo>();
>+//       std::tuple<Foo*, int> tuple2(foo.get(), 42);
>+//       // Invokes the method Bar on foo with one argument 42.
>+//       absl::apply(&Foo::Bar, foo.get(), 42);
>+//
>+//       std::tuple<std::unique_ptr<Foo>> tuple3(absl::make_unique<Foo>());
>+//       // Invokes the user function that takes ownership of the unique
>+//       // pointer.
>+//       absl::apply(&user_function, std::move(tuple));
>+//   }
>+template <typename Functor, typename Tuple>
>+auto apply(Functor&& functor, Tuple&& t)
>+    -> decltype(utility_internal::apply_helper(
>+        absl::forward<Functor>(functor), absl::forward<Tuple>(t),
>+        absl::make_index_sequence<std::tuple_size<
>+            typename std::remove_reference<Tuple>::type>::value>{})) {
>+  return utility_internal::apply_helper(
>+      absl::forward<Functor>(functor), absl::forward<Tuple>(t),
>+      absl::make_index_sequence<std::tuple_size<
>+          typename std::remove_reference<Tuple>::type>::value>{});
>+}
>+
>+// exchange
>+//
>+// Replaces the value of `obj` with `new_value` and returns the old value of
>+// `obj`.  `absl::exchange` is designed to be a drop-in replacement for C++14's
>+// `std::exchange`.
>+//
>+// Example:
>+//
>+//   Foo& operator=(Foo&& other) {
>+//     ptr1_ = absl::exchange(other.ptr1_, nullptr);
>+//     int1_ = absl::exchange(other.int1_, -1);
>+//     return *this;
>+//   }
>+template <typename T, typename U = T>
>+T exchange(T& obj, U&& new_value) {
>+  T old_value = absl::move(obj);
>+  obj = absl::forward<U>(new_value);
>+  return old_value;
>+}
>+
>+}  // namespace absl
>+
>+#endif  // ABSL_UTILITY_UTILITY_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility_test.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..3c447b20bb04a95555135612edff520ac0597a61
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/absl/utility/utility_test.cc
>@@ -0,0 +1,345 @@
>+// Copyright 2017 The Abseil Authors.
>+//
>+// Licensed under the Apache License, Version 2.0 (the "License");
>+// you may not use this file except in compliance with the License.
>+// You may obtain a copy of the License at
>+//
>+//      http://www.apache.org/licenses/LICENSE-2.0
>+//
>+// Unless required by applicable law or agreed to in writing, software
>+// distributed under the License is distributed on an "AS IS" BASIS,
>+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>+// See the License for the specific language governing permissions and
>+// limitations under the License.
>+
>+#include "absl/utility/utility.h"
>+
>+#include <sstream>
>+#include <string>
>+#include <tuple>
>+#include <type_traits>
>+#include <vector>
>+
>+#include "gmock/gmock.h"
>+#include "gtest/gtest.h"
>+#include "absl/base/attributes.h"
>+#include "absl/memory/memory.h"
>+#include "absl/strings/str_cat.h"
>+
>+namespace {
>+
>+#ifdef _MSC_VER
>+// Warnings for unused variables in this test are false positives.  On other
>+// platforms, they are suppressed by ABSL_ATTRIBUTE_UNUSED, but that doesn't
>+// work on MSVC.
>+// Both the unused variables and the name length warnings are due to calls
>+// to absl::make_index_sequence with very large values, creating very long type
>+// names. The resulting warnings are so long they make build output unreadable.
>+#pragma warning( push )
>+#pragma warning( disable : 4503 )  // decorated name length exceeded
>+#pragma warning( disable : 4101 )  // unreferenced local variable
>+#endif  // _MSC_VER
>+
>+using ::testing::ElementsAre;
>+using ::testing::Pointee;
>+using ::testing::StaticAssertTypeEq;
>+
>+TEST(IntegerSequenceTest, ValueType) {
>+  StaticAssertTypeEq<int, absl::integer_sequence<int>::value_type>();
>+  StaticAssertTypeEq<char, absl::integer_sequence<char>::value_type>();
>+}
>+
>+TEST(IntegerSequenceTest, Size) {
>+  EXPECT_EQ(0, (absl::integer_sequence<int>::size()));
>+  EXPECT_EQ(1, (absl::integer_sequence<int, 0>::size()));
>+  EXPECT_EQ(1, (absl::integer_sequence<int, 1>::size()));
>+  EXPECT_EQ(2, (absl::integer_sequence<int, 1, 2>::size()));
>+  EXPECT_EQ(3, (absl::integer_sequence<int, 0, 1, 2>::size()));
>+  EXPECT_EQ(3, (absl::integer_sequence<int, -123, 123, 456>::size()));
>+  constexpr size_t sz = absl::integer_sequence<int, 0, 1>::size();
>+  EXPECT_EQ(2, sz);
>+}
>+
>+TEST(IntegerSequenceTest, MakeIndexSequence) {
>+  StaticAssertTypeEq<absl::index_sequence<>, absl::make_index_sequence<0>>();
>+  StaticAssertTypeEq<absl::index_sequence<0>, absl::make_index_sequence<1>>();
>+  StaticAssertTypeEq<absl::index_sequence<0, 1>,
>+                     absl::make_index_sequence<2>>();
>+  StaticAssertTypeEq<absl::index_sequence<0, 1, 2>,
>+                     absl::make_index_sequence<3>>();
>+}
>+
>+TEST(IntegerSequenceTest, MakeIntegerSequence) {
>+  StaticAssertTypeEq<absl::integer_sequence<int>,
>+                     absl::make_integer_sequence<int, 0>>();
>+  StaticAssertTypeEq<absl::integer_sequence<int, 0>,
>+                     absl::make_integer_sequence<int, 1>>();
>+  StaticAssertTypeEq<absl::integer_sequence<int, 0, 1>,
>+                     absl::make_integer_sequence<int, 2>>();
>+  StaticAssertTypeEq<absl::integer_sequence<int, 0, 1, 2>,
>+                     absl::make_integer_sequence<int, 3>>();
>+}
>+
>+template <typename... Ts>
>+class Counter {};
>+
>+template <size_t... Is>
>+void CountAll(absl::index_sequence<Is...>) {
>+  // We only need an alias here, but instantiate a variable to silence warnings
>+  // for unused typedefs in some compilers.
>+  ABSL_ATTRIBUTE_UNUSED Counter<absl::make_index_sequence<Is>...> seq;
>+}
>+
>+// This test verifies that absl::make_index_sequence can handle large arguments
>+// without blowing up template instantiation stack, going OOM or taking forever
>+// to compile (there is hard 15 minutes limit imposed by forge).
>+TEST(IntegerSequenceTest, MakeIndexSequencePerformance) {
>+  // O(log N) template instantiations.
>+  // We only need an alias here, but instantiate a variable to silence warnings
>+  // for unused typedefs in some compilers.
>+  ABSL_ATTRIBUTE_UNUSED absl::make_index_sequence<(1 << 16) - 1> seq;
>+  // O(N) template instantiations.
>+  CountAll(absl::make_index_sequence<(1 << 8) - 1>());
>+}
>+
>+template <typename F, typename Tup, size_t... Is>
>+auto ApplyFromTupleImpl(F f, const Tup& tup, absl::index_sequence<Is...>)
>+    -> decltype(f(std::get<Is>(tup)...)) {
>+  return f(std::get<Is>(tup)...);
>+}
>+
>+template <typename Tup>
>+using TupIdxSeq = absl::make_index_sequence<std::tuple_size<Tup>::value>;
>+
>+template <typename F, typename Tup>
>+auto ApplyFromTuple(F f, const Tup& tup)
>+    -> decltype(ApplyFromTupleImpl(f, tup, TupIdxSeq<Tup>{})) {
>+  return ApplyFromTupleImpl(f, tup, TupIdxSeq<Tup>{});
>+}
>+
>+template <typename T>
>+std::string Fmt(const T& x) {
>+  std::ostringstream os;
>+  os << x;
>+  return os.str();
>+}
>+
>+struct PoorStrCat {
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) const {
>+    std::string r;
>+    for (const auto& e : {Fmt(args)...}) r += e;
>+    return r;
>+  }
>+};
>+
>+template <typename Tup, size_t... Is>
>+std::vector<std::string> TupStringVecImpl(const Tup& tup,
>+                                     absl::index_sequence<Is...>) {
>+  return {Fmt(std::get<Is>(tup))...};
>+}
>+
>+template <typename... Ts>
>+std::vector<std::string> TupStringVec(const std::tuple<Ts...>& tup) {
>+  return TupStringVecImpl(tup, absl::index_sequence_for<Ts...>());
>+}
>+
>+TEST(MakeIndexSequenceTest, ApplyFromTupleExample) {
>+  PoorStrCat f{};
>+  EXPECT_EQ("12abc3.14", f(12, "abc", 3.14));
>+  EXPECT_EQ("12abc3.14", ApplyFromTuple(f, std::make_tuple(12, "abc", 3.14)));
>+}
>+
>+TEST(IndexSequenceForTest, Basic) {
>+  StaticAssertTypeEq<absl::index_sequence<>, absl::index_sequence_for<>>();
>+  StaticAssertTypeEq<absl::index_sequence<0>, absl::index_sequence_for<int>>();
>+  StaticAssertTypeEq<absl::index_sequence<0, 1, 2, 3>,
>+                     absl::index_sequence_for<int, void, char, int>>();
>+}
>+
>+TEST(IndexSequenceForTest, Example) {
>+  EXPECT_THAT(TupStringVec(std::make_tuple(12, "abc", 3.14)),
>+              ElementsAre("12", "abc", "3.14"));
>+}
>+
>+int Function(int a, int b) { return a - b; }
>+
>+int Sink(std::unique_ptr<int> p) { return *p; }
>+
>+std::unique_ptr<int> Factory(int n) { return absl::make_unique<int>(n); }
>+
>+void NoOp() {}
>+
>+struct ConstFunctor {
>+  int operator()(int a, int b) const { return a - b; }
>+};
>+
>+struct MutableFunctor {
>+  int operator()(int a, int b) { return a - b; }
>+};
>+
>+struct EphemeralFunctor {
>+  EphemeralFunctor() {}
>+  EphemeralFunctor(const EphemeralFunctor&) {}
>+  EphemeralFunctor(EphemeralFunctor&&) {}
>+  int operator()(int a, int b) && { return a - b; }
>+};
>+
>+struct OverloadedFunctor {
>+  OverloadedFunctor() {}
>+  OverloadedFunctor(const OverloadedFunctor&) {}
>+  OverloadedFunctor(OverloadedFunctor&&) {}
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) & {
>+    return absl::StrCat("&", args...);
>+  }
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) const& {
>+    return absl::StrCat("const&", args...);
>+  }
>+  template <typename... Args>
>+  std::string operator()(const Args&... args) && {
>+    return absl::StrCat("&&", args...);
>+  }
>+};
>+
>+struct Class {
>+  int Method(int a, int b) { return a - b; }
>+  int ConstMethod(int a, int b) const { return a - b; }
>+
>+  int member;
>+};
>+
>+struct FlipFlop {
>+  int ConstMethod() const { return member; }
>+  FlipFlop operator*() const { return {-member}; }
>+
>+  int member;
>+};
>+
>+TEST(ApplyTest, Function) {
>+  EXPECT_EQ(1, absl::apply(Function, std::make_tuple(3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Function, std::make_tuple(3, 2)));
>+}
>+
>+TEST(ApplyTest, NonCopyableArgument) {
>+  EXPECT_EQ(42, absl::apply(Sink, std::make_tuple(absl::make_unique<int>(42))));
>+}
>+
>+TEST(ApplyTest, NonCopyableResult) {
>+  EXPECT_THAT(absl::apply(Factory, std::make_tuple(42)),
>+              ::testing::Pointee(42));
>+}
>+
>+TEST(ApplyTest, VoidResult) { absl::apply(NoOp, std::tuple<>()); }
>+
>+TEST(ApplyTest, ConstFunctor) {
>+  EXPECT_EQ(1, absl::apply(ConstFunctor(), std::make_tuple(3, 2)));
>+}
>+
>+TEST(ApplyTest, MutableFunctor) {
>+  MutableFunctor f;
>+  EXPECT_EQ(1, absl::apply(f, std::make_tuple(3, 2)));
>+  EXPECT_EQ(1, absl::apply(MutableFunctor(), std::make_tuple(3, 2)));
>+}
>+TEST(ApplyTest, EphemeralFunctor) {
>+  EphemeralFunctor f;
>+  EXPECT_EQ(1, absl::apply(std::move(f), std::make_tuple(3, 2)));
>+  EXPECT_EQ(1, absl::apply(EphemeralFunctor(), std::make_tuple(3, 2)));
>+}
>+TEST(ApplyTest, OverloadedFunctor) {
>+  OverloadedFunctor f;
>+  const OverloadedFunctor& cf = f;
>+
>+  EXPECT_EQ("&", absl::apply(f, std::tuple<>{}));
>+  EXPECT_EQ("& 42", absl::apply(f, std::make_tuple(" 42")));
>+
>+  EXPECT_EQ("const&", absl::apply(cf, std::tuple<>{}));
>+  EXPECT_EQ("const& 42", absl::apply(cf, std::make_tuple(" 42")));
>+
>+  EXPECT_EQ("&&", absl::apply(std::move(f), std::tuple<>{}));
>+  OverloadedFunctor f2;
>+  EXPECT_EQ("&& 42", absl::apply(std::move(f2), std::make_tuple(" 42")));
>+}
>+
>+TEST(ApplyTest, ReferenceWrapper) {
>+  ConstFunctor cf;
>+  MutableFunctor mf;
>+  EXPECT_EQ(1, absl::apply(std::cref(cf), std::make_tuple(3, 2)));
>+  EXPECT_EQ(1, absl::apply(std::ref(cf), std::make_tuple(3, 2)));
>+  EXPECT_EQ(1, absl::apply(std::ref(mf), std::make_tuple(3, 2)));
>+}
>+
>+TEST(ApplyTest, MemberFunction) {
>+  std::unique_ptr<Class> p(new Class);
>+  std::unique_ptr<const Class> cp(new Class);
>+  EXPECT_EQ(
>+      1, absl::apply(&Class::Method,
>+                     std::tuple<std::unique_ptr<Class>&, int, int>(p, 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::Method,
>+                           std::tuple<Class*, int, int>(p.get(), 3, 2)));
>+  EXPECT_EQ(
>+      1, absl::apply(&Class::Method, std::tuple<Class&, int, int>(*p, 3, 2)));
>+
>+  EXPECT_EQ(
>+      1, absl::apply(&Class::ConstMethod,
>+                     std::tuple<std::unique_ptr<Class>&, int, int>(p, 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::tuple<Class*, int, int>(p.get(), 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::tuple<Class&, int, int>(*p, 3, 2)));
>+
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::tuple<std::unique_ptr<const Class>&, int, int>(
>+                               cp, 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::tuple<const Class*, int, int>(cp.get(), 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::tuple<const Class&, int, int>(*cp, 3, 2)));
>+
>+  EXPECT_EQ(1, absl::apply(&Class::Method,
>+                           std::make_tuple(absl::make_unique<Class>(), 3, 2)));
>+  EXPECT_EQ(1, absl::apply(&Class::ConstMethod,
>+                           std::make_tuple(absl::make_unique<Class>(), 3, 2)));
>+  EXPECT_EQ(
>+      1, absl::apply(&Class::ConstMethod,
>+                     std::make_tuple(absl::make_unique<const Class>(), 3, 2)));
>+}
>+
>+TEST(ApplyTest, DataMember) {
>+  std::unique_ptr<Class> p(new Class{42});
>+  std::unique_ptr<const Class> cp(new Class{42});
>+  EXPECT_EQ(
>+      42, absl::apply(&Class::member, std::tuple<std::unique_ptr<Class>&>(p)));
>+  EXPECT_EQ(42, absl::apply(&Class::member, std::tuple<Class&>(*p)));
>+  EXPECT_EQ(42, absl::apply(&Class::member, std::tuple<Class*>(p.get())));
>+
>+  absl::apply(&Class::member, std::tuple<std::unique_ptr<Class>&>(p)) = 42;
>+  absl::apply(&Class::member, std::tuple<Class*>(p.get())) = 42;
>+  absl::apply(&Class::member, std::tuple<Class&>(*p)) = 42;
>+
>+  EXPECT_EQ(42, absl::apply(&Class::member,
>+                            std::tuple<std::unique_ptr<const Class>&>(cp)));
>+  EXPECT_EQ(42, absl::apply(&Class::member, std::tuple<const Class&>(*cp)));
>+  EXPECT_EQ(42,
>+            absl::apply(&Class::member, std::tuple<const Class*>(cp.get())));
>+}
>+
>+TEST(ApplyTest, FlipFlop) {
>+  FlipFlop obj = {42};
>+  // This call could resolve to (obj.*&FlipFlop::ConstMethod)() or
>+  // ((*obj).*&FlipFlop::ConstMethod)(). We verify that it's the former.
>+  EXPECT_EQ(42, absl::apply(&FlipFlop::ConstMethod, std::make_tuple(obj)));
>+  EXPECT_EQ(42, absl::apply(&FlipFlop::member, std::make_tuple(obj)));
>+}
>+
>+TEST(ExchangeTest, MoveOnly) {
>+  auto a = Factory(1);
>+  EXPECT_EQ(1, *a);
>+  auto b = absl::exchange(a, Factory(2));
>+  EXPECT_EQ(2, *a);
>+  EXPECT_EQ(1, *b);
>+}
>+
>+}  // namespace
>+
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/rename_dynamic_annotations.sh b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/rename_dynamic_annotations.sh
>new file mode 100755
>index 0000000000000000000000000000000000000000..b39017f958571723bbc770066c78bcd4caa20f87
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/abseil-cpp/rename_dynamic_annotations.sh
>@@ -0,0 +1,127 @@
>+#!/bin/bash
>+
>+# This script renames all the functions and the macros defined in
>+# absl/base/dynamic_annotations.{h,cc}.
>+#
>+# Chromium's dynamic_annotations live in //base/third_party/dynamic_annotations
>+# and the are in conflict with Abseil's dynamic_annotations (ODR violations and
>+# macro clashing).
>+# In order to avoid problems in Chromium, this copy of Abseil has its own
>+# dynamic_annotations renamed.
>+
>+for w in \
>+  AnnotateBarrierDestroy \
>+  AnnotateBarrierInit \
>+  AnnotateBarrierWaitAfter \
>+  AnnotateBarrierWaitBefore \
>+  AnnotateBenignRace \
>+  AnnotateBenignRaceSized \
>+  AnnotateCondVarSignal \
>+  AnnotateCondVarSignalAll \
>+  AnnotateCondVarWait \
>+  AnnotateEnableRaceDetection \
>+  AnnotateExpectRace \
>+  AnnotateFlushExpectedRaces \
>+  AnnotateFlushState \
>+  AnnotateHappensAfter \
>+  AnnotateHappensBefore \
>+  AnnotateIgnoreReadsBegin \
>+  AnnotateIgnoreReadsEnd \
>+  AnnotateIgnoreSyncBegin \
>+  AnnotateIgnoreSyncEnd \
>+  AnnotateIgnoreWritesBegin \
>+  AnnotateIgnoreWritesEnd \
>+  AnnotateMemoryIsInitialized \
>+  AnnotateMemoryIsUninitialized \
>+  AnnotateMutexIsNotPHB \
>+  AnnotateMutexIsUsedAsCondVar \
>+  AnnotateNewMemory \
>+  AnnotateNoOp \
>+  AnnotatePCQCreate \
>+  AnnotatePCQDestroy \
>+  AnnotatePCQGet \
>+  AnnotatePCQPut \
>+  AnnotatePublishMemoryRange \
>+  AnnotateRWLockAcquired \
>+  AnnotateRWLockCreate \
>+  AnnotateRWLockCreateStatic \
>+  AnnotateRWLockDestroy \
>+  AnnotateRWLockReleased \
>+  AnnotateThreadName \
>+  AnnotateTraceMemory \
>+  AnnotateUnpublishMemoryRange \
>+  GetRunningOnValgrind \
>+  RunningOnValgrind \
>+  StaticAnnotateIgnoreReadsBegin \
>+  StaticAnnotateIgnoreReadsEnd \
>+  StaticAnnotateIgnoreWritesBegin \
>+  StaticAnnotateIgnoreWritesEnd \
>+  ValgrindSlowdown \
>+; do
>+  find absl/ -type f -exec sed -i "s/\b$w\b/Absl$w/g" {} \;
>+done
>+
>+for w in \
>+  ADDRESS_SANITIZER_REDZONE \
>+  ANNOTALYSIS_ENABLED \
>+  ANNOTATE_BARRIER_DESTROY \
>+  ANNOTATE_BARRIER_INIT \
>+  ANNOTATE_BARRIER_WAIT_AFTER \
>+  ANNOTATE_BARRIER_WAIT_BEFORE \
>+  ANNOTATE_BENIGN_RACE \
>+  ANNOTATE_BENIGN_RACE_SIZED \
>+  ANNOTATE_BENIGN_RACE_STATIC \
>+  ANNOTATE_CONDVAR_LOCK_WAIT \
>+  ANNOTATE_CONDVAR_SIGNAL \
>+  ANNOTATE_CONDVAR_SIGNAL_ALL \
>+  ANNOTATE_CONDVAR_WAIT \
>+  ANNOTATE_CONTIGUOUS_CONTAINER \
>+  ANNOTATE_ENABLE_RACE_DETECTION \
>+  ANNOTATE_EXPECT_RACE \
>+  ANNOTATE_FLUSH_EXPECTED_RACES \
>+  ANNOTATE_FLUSH_STATE \
>+  ANNOTATE_HAPPENS_AFTER \
>+  ANNOTATE_HAPPENS_BEFORE \
>+  ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN ANNOTATE_IGNORE_READS_AND_WRITES_END \
>+  ANNOTATE_IGNORE_READS_BEGIN \
>+  ANNOTATE_IGNORE_READS_END \
>+  ANNOTATE_IGNORE_SYNC_BEGIN \
>+  ANNOTATE_IGNORE_SYNC_END \
>+  ANNOTATE_IGNORE_WRITES_BEGIN \
>+  ANNOTATE_IGNORE_WRITES_END \
>+  ANNOTATE_MEMORY_IS_INITIALIZED \
>+  ANNOTATE_MEMORY_IS_UNINITIALIZED \
>+  ANNOTATE_MUTEX_IS_USED_AS_CONDVAR \
>+  ANNOTATE_NEW_MEMORY \
>+  ANNOTATE_NOT_HAPPENS_BEFORE_MUTEX \
>+  ANNOTATE_NO_OP \
>+  ANNOTATE_PCQ_CREATE ANNOTATE_PCQ_DESTROY \
>+  ANNOTATE_PCQ_GET ANNOTATE_PCQ_PUT \
>+  ANNOTATE_PUBLISH_MEMORY_RANGE \
>+  ANNOTATE_PURE_HAPPENS_BEFORE_MUTEX \
>+  ANNOTATE_RWLOCK_ACQUIRED \
>+  ANNOTATE_RWLOCK_CREATE \
>+  ANNOTATE_RWLOCK_CREATE_STATIC \
>+  ANNOTATE_RWLOCK_DESTROY \
>+  ANNOTATE_RWLOCK_RELEASED \
>+  ANNOTATE_SWAP_MEMORY_RANGE \
>+  ANNOTATE_THREAD_NAME \
>+  ANNOTATE_TRACE_MEMORY \
>+  ANNOTATE_UNPROTECTED_READ \
>+  ANNOTATE_UNPUBLISH_MEMORY_RANGE \
>+  ANNOTATIONS_ENABLED \
>+  ATTRIBUTE_IGNORE_READS_BEGIN \
>+  ATTRIBUTE_IGNORE_READS_END \
>+  DYNAMIC_ANNOTATIONS_ATTRIBUTE_WEAK \
>+  DYNAMIC_ANNOTATIONS_ENABLED \
>+  DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL \
>+  DYNAMIC_ANNOTATIONS_GLUE \
>+  DYNAMIC_ANNOTATIONS_GLUE0 \
>+  DYNAMIC_ANNOTATIONS_IMPL \
>+  DYNAMIC_ANNOTATIONS_NAME \
>+  DYNAMIC_ANNOTATIONS_PREFIX \
>+  DYNAMIC_ANNOTATIONS_PROVIDE_RUNNING_ON_VALGRIND \
>+  DYNAMIC_ANNOTATIONS_WANT_ATTRIBUTE_WEAK \
>+; do
>+  find absl/ -type f -exec sed -i "s/\b$w\b/ABSL_$w/g" {} \;
>+done
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/.gn b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/.gn
>index 015d0f0e5e862f120b63376cc8bfc96f8217858b..26a4a62d1994e5abd6f534a9b6b20b71bacb07e9 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/.gn
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/.gn
>@@ -6,6 +6,8 @@
> # in the file PATENTS. All contributing project authors may
> # be found in the AUTHORS file in the root of the source tree.
> 
>+import("//build/dotfile_settings.gni")
>+
> # The location of the build configuration file.
> buildconfig = "//build/config/BUILDCONFIG.gn"
> 
>@@ -23,29 +25,8 @@ check_targets = [ "//libyuv/*" ]
> # These are the list of GN files that run exec_script. This whitelist exists
> # to force additional review for new uses of exec_script, which is strongly
> # discouraged except for gypi_to_gn calls.
>-exec_script_whitelist = [
>-  "//build/config/android/BUILD.gn",
>-  "//build/config/android/config.gni",
>-  "//build/config/android/internal_rules.gni",
>-  "//build/config/android/rules.gni",
>-  "//build/config/BUILD.gn",
>-  "//build/config/compiler/BUILD.gn",
>-  "//build/config/gcc/gcc_version.gni",
>-  "//build/config/ios/ios_sdk.gni",
>-  "//build/config/linux/BUILD.gn",
>-  "//build/config/linux/pkg_config.gni",
>-  "//build/config/mac/mac_sdk.gni",
>-  "//build/config/posix/BUILD.gn",
>-  "//build/config/sysroot.gni",
>-  "//build/config/win/BUILD.gn",
>-  "//build/config/win/visual_studio_version.gni",
>-  "//build/gn_helpers.py",
>-  "//build/gypi_to_gn.py",
>-  "//build/toolchain/concurrent_links.gni",
>-  "//build/toolchain/gcc_toolchain.gni",
>-  "//build/toolchain/mac/BUILD.gn",
>-  "//build/toolchain/win/BUILD.gn",
>-]
>+exec_script_whitelist = build_dotfile_settings.exec_script_whitelist +
>+                        [ "//build_overrides/build.gni" ]
> 
> default_args = {
>   mac_sdk_min = "10.11"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.bp b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.bp
>index a3d8d834ac771791f9f9363f9f03ba2accefd069..7d95a7865abe182356dcb849efaa52c019988f6f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.bp
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.bp
>@@ -24,14 +24,12 @@ cc_library {
>         "source/rotate_any.cc",
>         "source/rotate_argb.cc",
>         "source/rotate_common.cc",
>-        "source/rotate_dspr2.cc",
>         "source/rotate_gcc.cc",
>         "source/rotate_msa.cc",
>         "source/rotate_neon.cc",
>         "source/rotate_neon64.cc",
>         "source/row_any.cc",
>         "source/row_common.cc",
>-        "source/row_dspr2.cc",
>         "source/row_gcc.cc",
>         "source/row_msa.cc",
>         "source/row_neon.cc",
>@@ -40,7 +38,6 @@ cc_library {
>         "source/scale_any.cc",
>         "source/scale_argb.cc",
>         "source/scale_common.cc",
>-        "source/scale_dspr2.cc",
>         "source/scale_gcc.cc",
>         "source/scale_msa.cc",
>         "source/scale_neon.cc",
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.mk b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.mk
>index 854020610eab2c5ff71cc6205a73cc9a9ae5d4d4..dbc6cad37ab3ca5b09ea342639935ef48f1dae50 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.mk
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/Android.mk
>@@ -24,14 +24,12 @@ LOCAL_SRC_FILES := \
>     source/rotate_any.cc        \
>     source/rotate_argb.cc       \
>     source/rotate_common.cc     \
>-    source/rotate_dspr2.cc      \
>     source/rotate_gcc.cc        \
>     source/rotate_msa.cc        \
>     source/rotate_neon.cc       \
>     source/rotate_neon64.cc     \
>     source/row_any.cc           \
>     source/row_common.cc        \
>-    source/row_dspr2.cc         \
>     source/row_gcc.cc           \
>     source/row_msa.cc           \
>     source/row_neon.cc          \
>@@ -40,7 +38,6 @@ LOCAL_SRC_FILES := \
>     source/scale_any.cc         \
>     source/scale_argb.cc        \
>     source/scale_common.cc      \
>-    source/scale_dspr2.cc       \
>     source/scale_gcc.cc         \
>     source/scale_msa.cc         \
>     source/scale_neon.cc        \
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/BUILD.gn
>index 9badf08c8466e2957d54c10b53c870761c988f72..03ce499e6d9db8d2decdbadd94f877b403a24d6d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/BUILD.gn
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/BUILD.gn
>@@ -12,6 +12,11 @@ import("//testing/test.gni")
> declare_args() {
>   # Set to false to disable building with gflags.
>   libyuv_use_gflags = true
>+
>+  # When building a shared library using a target in WebRTC or
>+  # Chromium projects that depends on libyuv, setting this flag
>+  # to true makes libyuv symbols visible inside that library.
>+  libyuv_symbols_visible = false
> }
> 
> config("libyuv_config") {
>@@ -42,7 +47,8 @@ group("default") {
> }
> 
> group("libyuv") {
>-  public_configs = [ ":libyuv_config" ]
>+  all_dependent_configs = [ ":libyuv_config" ]
>+  deps = []
> 
>   if (is_win && target_cpu == "x64") {
>     # Compile with clang in order to get inline assembly
>@@ -55,13 +61,19 @@ group("libyuv") {
>     ]
>   }
> 
>+  if (libyuv_use_neon) {
>+    deps += [ ":libyuv_neon" ]
>+  }
>+
>+  if (libyuv_use_msa) {
>+    deps += [ ":libyuv_msa" ]
>+  }
>+
>   if (!is_ios) {
>     # Make sure that clients of libyuv link with libjpeg. This can't go in
>     # libyuv_internal because in Windows x64 builds that will generate a clang
>     # build of libjpeg, and we don't want two copies.
>-    deps = [
>-      "//third_party:jpeg",
>-    ]
>+    deps += [ "//third_party:jpeg" ]
>   }
> }
> 
>@@ -110,19 +122,16 @@ static_library("libyuv_internal") {
>     "source/rotate_any.cc",
>     "source/rotate_argb.cc",
>     "source/rotate_common.cc",
>-    "source/rotate_dspr2.cc",
>     "source/rotate_gcc.cc",
>     "source/rotate_win.cc",
>     "source/row_any.cc",
>     "source/row_common.cc",
>-    "source/row_dspr2.cc",
>     "source/row_gcc.cc",
>     "source/row_win.cc",
>     "source/scale.cc",
>     "source/scale_any.cc",
>     "source/scale_argb.cc",
>     "source/scale_common.cc",
>-    "source/scale_dspr2.cc",
>     "source/scale_gcc.cc",
>     "source/scale_win.cc",
>     "source/video_common.cc",
>@@ -132,6 +141,11 @@ static_library("libyuv_internal") {
>   defines = []
>   deps = []
> 
>+  if (libyuv_symbols_visible) {
>+    configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
>+    configs += [ "//build/config/gcc:symbol_visibility_default" ]
>+  }
>+
>   if (!is_ios) {
>     defines += [ "HAVE_JPEG" ]
> 
>@@ -140,14 +154,6 @@ static_library("libyuv_internal") {
>     deps += [ "//third_party:jpeg_includes" ]
>   }
> 
>-  if (libyuv_use_neon) {
>-    deps += [ ":libyuv_neon" ]
>-  }
>-
>-  if (libyuv_use_msa) {
>-    deps += [ ":libyuv_msa" ]
>-  }
>-
>   # Always enable optimization for Release and NaCl builds (to workaround
>   # crbug.com/538243).
>   if (!is_debug || is_nacl) {
>@@ -167,6 +173,7 @@ static_library("libyuv_internal") {
>     ]
>   }
> }
>+
> if (libyuv_use_neon) {
>   static_library("libyuv_neon") {
>     sources = [
>@@ -181,6 +188,10 @@ if (libyuv_use_neon) {
>       "source/scale_neon64.cc",
>     ]
> 
>+    deps = [
>+      ":libyuv_internal",
>+    ]
>+
>     public_configs = [ ":libyuv_config" ]
> 
>     # Always enable optimization for Release and NaCl builds (to workaround
>@@ -210,6 +221,10 @@ if (libyuv_use_msa) {
>       "source/scale_msa.cc",
>     ]
> 
>+    deps = [
>+      ":libyuv_internal",
>+    ]
>+
>     public_configs = [ ":libyuv_config" ]
>   }
> }
>@@ -302,7 +317,6 @@ if (libyuv_include_tests) {
>       # Enable the following 3 macros to turn off assembly for specified CPU.
>       # "LIBYUV_DISABLE_X86",
>       # "LIBYUV_DISABLE_NEON",
>-      # "LIBYUV_DISABLE_DSPR2",
>       # Enable the following macro to build libyuv as a shared library (dll).
>       # "LIBYUV_USING_SHARED_LIBRARY"
>     ]
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/DEPS b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/DEPS
>index fdb133c7ac1b8a7291c2c07621cfaed91a2bfe17..266327470b7c0fa2c3631a3d0b28439e18c7d253 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/DEPS
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/DEPS
>@@ -1,38 +1,38 @@
> vars = {
>   'chromium_git': 'https://chromium.googlesource.com',
>-  'chromium_revision': 'ff3b31782d552b03104a6d831c7530605b52b13f',
>-  'swarming_revision': '5e8001d9a710121ce7a68efd0804430a34b4f9e4',
>+  'chromium_revision': '80f0c5570649c35a869429b2ab8c381a0a7246cb',
>+  'swarming_revision': '88229872dd17e71658fe96763feaa77915d8cbd6',
>   # Three lines of non-changing comments so that
>   # the commit queue can handle CLs rolling lss
>   # and whatever else without interference from each other.
>-  'lss_revision': '63f24c8221a229f677d26ebe8f3d1528a9d787ac',
>+  'lss_revision': 'e6527b0cd469e3ff5764785dadcb39bf7d787154',
>   # Three lines of non-changing comments so that
>   # the commit queue can handle CLs rolling catapult
>   # and whatever else without interference from each other.
>-  'catapult_revision': 'aa736cc76ee5e35215abcfb83a8c354f12d0c684',
>+  'catapult_revision': 'e7298f36f7912f2caa122086cfbe71734d04b73f',
> }
> 
> deps = {
>   'src/build':
>-    Var('chromium_git') + '/chromium/src/build' + '@' + '156ba982d749902e3403c242e23ded87fd316494',
>+    Var('chromium_git') + '/chromium/src/build' + '@' + '39738e75b27f39d4c0030a0b11d5d2ddd34715f7',
>   'src/buildtools':
>-    Var('chromium_git') + '/chromium/buildtools.git' + '@' + 'f6d165d9d842ddd29056c127a5f3a3c5d8e0d2e3',
>+    Var('chromium_git') + '/chromium/buildtools.git' + '@' + 'a09e064635a49f08e585e3b173d5fbc3dd3f485e',
>   'src/testing':
>-    Var('chromium_git') + '/chromium/src/testing' + '@' + 'cc96d3d66b5b9613fd0fe055509cfec5eb54b19c',
>+    Var('chromium_git') + '/chromium/src/testing' + '@' + '5f7e36cad6434fd3d65674af96653a23ecc9f694',
>   'src/third_party':
>-    Var('chromium_git') + '/chromium/src/third_party' + '@' + '72c52c224cdd3c377f7caff8ffed0f5749e79549',
>+    Var('chromium_git') + '/chromium/src/third_party' + '@' + '2c0ced3ddbf84ce1c0759b277d9538da42f23650',
>   'src/third_party/catapult':
>-   Var('chromium_git') + '/external/github.com/catapult-project/catapult.git' + '@' + Var('catapult_revision'),
>+    Var('chromium_git') + '/catapult.git' + '@' + Var('catapult_revision'),
>   'src/third_party/colorama/src':
>     Var('chromium_git') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
>   'src/third_party/googletest/src':
>-    Var('chromium_git') + '/external/github.com/google/googletest.git' + '@' + '7f8fefabedf2965980585be8c2bff97458f28e0b',
>+    Var('chromium_git') + '/external/github.com/google/googletest.git' + '@' + '0062e4869f07a3ef235703ddf63af604b712446c',
>   'src/third_party/libjpeg_turbo':
>     Var('chromium_git') + '/chromium/deps/libjpeg_turbo.git' + '@' + 'a1750dbc79a8792dde3d3f7d7d8ac28ba01ac9dd',
>   'src/third_party/yasm/source/patched-yasm':
>     Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + 'b98114e18d8b9b84586b10d24353ab8616d4c5fc',
>   'src/tools':
>-    Var('chromium_git') + '/chromium/src/tools' + '@' + 'eceb2c420b20350a2d2ba261953109280968647a',
>+    Var('chromium_git') + '/chromium/src/tools' + '@' + '6202b67fc46a9984097caf237e12e3b8f7a9f7da',
>   'src/tools/gyp':
>     Var('chromium_git') + '/external/gyp.git' + '@' + 'd61a9397e668fa9843c4aa7da9e79460fe590bfb',
>    'src/tools/swarming_client':
>@@ -45,45 +45,84 @@ deps = {
>     Var('chromium_git') + '/external/github.com/gflags/gflags' + '@' + '03bebcb065c83beff83d50ae025a55a4bf94dfca',
>   'src/third_party/gtest-parallel':
>     Var('chromium_git') + '/external/webrtc/deps/third_party/gtest-parallel' + '@' + '1dad0e9f6d82ff994130b529d7d814b40eb32b0e',
>-}
> 
>-deps_os = {
>-  'android': {
>-    'src/base':
>-      Var('chromium_git') + '/chromium/src/base' + '@' + '9b543d487c7c38be191c6180001ff9ce186ae326',
>-    'src/third_party/android_tools':
>-      Var('chromium_git') + '/android_tools.git' + '@' + 'aadb2fed04af8606545b0afe4e3060bc1a15fad7',
>-    'src/third_party/ced/src':
>-      Var('chromium_git') + '/external/github.com/google/compact_enc_det.git' + '@' + '94c367a1fe3a13207f4b22604fcfd1d9f9ddf6d9',
>-    'src/third_party/icu':
>-      Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '08cb956852a5ccdba7f9c941728bb833529ba3c6',
>-    'src/third_party/jsr-305/src':
>-      Var('chromium_git') + '/external/jsr-305.git' + '@' + '642c508235471f7220af6d5df2d3210e3bfc0919',
>-    'src/third_party/junit/src':
>-      Var('chromium_git') + '/external/junit.git' + '@' + '64155f8a9babcfcf4263cf4d08253a1556e75481',
>-    'src/third_party/lss':
>-      Var('chromium_git') + '/linux-syscall-support.git' + '@' + Var('lss_revision'),
>-    'src/third_party/mockito/src':
>-      Var('chromium_git') + '/external/mockito/mockito.git' + '@' + 'de83ad4598ad4cf5ea53c69a8a8053780b04b850',
>-    'src/third_party/requests/src':
>-      Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'f172b30356d821d180fa4ecfa3e71c7274a32de4',
>-    'src/third_party/robolectric/robolectric':
>-      Var('chromium_git') + '/external/robolectric.git' + '@' + 'b02c65cc6d7465f58f0de48a39914aa905692afa',
>-    'src/third_party/ub-uiautomator/lib':
>-      Var('chromium_git') + '/chromium/third_party/ub-uiautomator.git' + '@' + '00270549ce3161ae72ceb24712618ea28b4f9434',
>-  },
>-  'ios': {
>-    'src/ios':
>-      Var('chromium_git') + '/chromium/src/ios' + '@' + '39c4b2fcf73f5b1e82af3b9c57267c17217d6a30',
>-  },
>-  'unix': {
>-    'src/third_party/lss':
>-      Var('chromium_git') + '/linux-syscall-support.git' + '@' + Var('lss_revision'),
>-  },
>-  'win': {
>-    # Dependencies used by libjpeg-turbo
>-    'src/third_party/yasm/binaries':
>-      Var('chromium_git') + '/chromium/deps/yasm/binaries.git' + '@' + '52f9b3f4b0aa06da24ef8b123058bb61ee468881',
>+  'src/third_party/lss': {
>+    'url': Var('chromium_git') + '/linux-syscall-support.git' + '@' + Var('lss_revision'),
>+    'condition': 'checkout_android or checkout_linux',
>+  },
>+
>+  # Android deps:
>+  'src/third_party/auto/src': {
>+    'url': Var('chromium_git') + '/external/github.com/google/auto.git' + '@' + '8a81a858ae7b78a1aef71ac3905fade0bbd64e82',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/auto/src': {
>+    'url': Var('chromium_git') + '/external/github.com/google/auto.git' + '@' + '8a81a858ae7b78a1aef71ac3905fade0bbd64e82',
>+    'condition': 'checkout_android',
>+  },
>+  'src/base': {
>+    'url': Var('chromium_git') + '/chromium/src/base' + '@' + 'ac3d2b81181b085a9952cb83dba748420eefe691',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/android_ndk': {
>+    'url': Var('chromium_git') + '/android_ndk.git' + '@' + 'e951c37287c7d8cd915bf8d4149fd4a06d808b55',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/android_tools': {
>+    'url': Var('chromium_git') + '/android_tools.git' + '@' + '9a70d48fcdd68cd0e7e968f342bd767ee6323bd1',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/ced/src': {
>+    'url': Var('chromium_git') + '/external/github.com/google/compact_enc_det.git' + '@' + '94c367a1fe3a13207f4b22604fcfd1d9f9ddf6d9',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/errorprone/lib': {
>+      'url': Var('chromium_git') + '/chromium/third_party/errorprone.git' + '@' + 'ecc57c2b00627667874744b9ad8efe10734d97a8',
>+      'condition': 'checkout_android',
>+  },
>+  'src/third_party/findbugs': {
>+    'url': Var('chromium_git') + '/chromium/deps/findbugs.git' + '@' + '4275d9ac8610db6b1bc9a5e887f97e41b33fac67',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/icu': {
>+    'url': Var('chromium_git') + '/chromium/deps/icu.git' + '@' + 'd888fd2a1be890f4d35e43f68d6d79f42519a357',
>+  },
>+  'src/third_party/jsr-305/src': {
>+    'url': Var('chromium_git') + '/external/jsr-305.git' + '@' + '642c508235471f7220af6d5df2d3210e3bfc0919',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/junit/src': {
>+    'url': Var('chromium_git') + '/external/junit.git' + '@' + '64155f8a9babcfcf4263cf4d08253a1556e75481',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/mockito/src': {
>+    'url': Var('chromium_git') + '/external/mockito/mockito.git' + '@' + 'de83ad4598ad4cf5ea53c69a8a8053780b04b850',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/requests/src': {
>+    'url': Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'f172b30356d821d180fa4ecfa3e71c7274a32de4',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/robolectric/robolectric': {
>+    'url': Var('chromium_git') + '/external/robolectric.git' + '@' + '7e067f1112e1502caa742f7be72d37b5678d3403',
>+    'condition': 'checkout_android',
>+  },
>+  'src/third_party/ub-uiautomator/lib': {
>+    'url': Var('chromium_git') + '/chromium/third_party/ub-uiautomator.git' + '@' + '00270549ce3161ae72ceb24712618ea28b4f9434',
>+    'condition': 'checkout_android',
>+  },
>+
>+  # iOS deps:
>+  'src/ios': {
>+    'url': Var('chromium_git') + '/chromium/src/ios' + '@' + '299ef76e844a74a1f2f4ce7f06d101861fb49aba',
>+    'condition': 'checkout_ios'
>+  },
>+
>+  # Win deps:
>+  # Dependencies used by libjpeg-turbo
>+  'src/third_party/yasm/binaries': {
>+    'url': Var('chromium_git') + '/chromium/deps/yasm/binaries.git' + '@' + '52f9b3f4b0aa06da24ef8b123058bb61ee468881',
>+    'condition': 'checkout_win',
>   },
> }
> 
>@@ -116,200 +155,41 @@ hooks = [
>         'src',
>     ],
>   },
>-  # Android dependencies. Many are downloaded using Google Storage these days.
>-  # They're copied from https://cs.chromium.org/chromium/src/DEPS for all
>-  # such dependencies we share with Chromium.
>-  {
>-    # This downloads SDK extras and puts them in the
>-    # third_party/android_tools/sdk/extras directory.
>-    'name': 'sdkextras',
>-    'pattern': '.',
>-    # When adding a new sdk extras package to download, add the package
>-    # directory and zip file to .gitignore in third_party/android_tools.
>-    'action': ['python',
>-               'src/build/android/play_services/update.py',
>-               'download'
>-    ],
>-  },
>-  {
>-    'name': 'intellij',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-intellij',
>-               '-l', 'third_party/intellij'
>-    ],
>-  },
>-  {
>-    'name': 'javax_inject',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-javax-inject',
>-               '-l', 'third_party/javax_inject'
>-    ],
>-  },
>-  {
>-    'name': 'hamcrest',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-hamcrest',
>-               '-l', 'third_party/hamcrest'
>-    ],
>-  },
>-  {
>-    'name': 'guava',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-guava',
>-               '-l', 'third_party/guava'
>-    ],
>-  },
>-  {
>-    'name': 'android_support_test_runner',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-android-support-test-runner',
>-               '-l', 'third_party/android_support_test_runner'
>-    ],
>-  },
>-  {
>-    'name': 'byte_buddy',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-byte-buddy',
>-               '-l', 'third_party/byte_buddy'
>-    ],
>-  },
>+  # Downloads the current stable linux sysroot to build/linux/ if needed.
>   {
>-    'name': 'espresso',
>+    'name': 'sysroot_arm',
>     'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-espresso',
>-               '-l', 'third_party/espresso'
>-    ],
>-  },
>-  {
>-    'name': 'robolectric_libs',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-robolectric',
>-               '-l', 'third_party/robolectric'
>-    ],
>-  },
>-  {
>-    'name': 'apache_velocity',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-apache-velocity',
>-               '-l', 'third_party/apache_velocity'
>-    ],
>-  },
>-  {
>-    'name': 'ow2_asm',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-ow2-asm',
>-               '-l', 'third_party/ow2_asm'
>-    ],
>-  },
>-  {
>-    'name': 'desugar',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-android-tools/bazel/desugar',
>-               '-l', 'third_party/bazel/desugar'
>-    ],
>-  },
>-  {
>-    'name': 'icu4j',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-icu4j',
>-               '-l', 'third_party/icu4j'
>-    ],
>-  },
>-  {
>-    'name': 'accessibility_test_framework',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-accessibility-test-framework',
>-               '-l', 'third_party/accessibility_test_framework'
>-    ],
>-  },
>-  {
>-    'name': 'bouncycastle',
>-    'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-bouncycastle',
>-               '-l', 'third_party/bouncycastle'
>-    ],
>+    'condition': 'checkout_linux and checkout_arm',
>+    'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
>+               '--arch=arm'],
>   },
>   {
>-    'name': 'sqlite4java',
>+    'name': 'sysroot_arm64',
>     'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-sqlite4java',
>-               '-l', 'third_party/sqlite4java'
>-    ],
>+    'condition': 'checkout_linux and checkout_arm64',
>+    'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
>+               '--arch=arm64'],
>   },
>   {
>-    'name': 'xstream',
>+    'name': 'sysroot_x86',
>     'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-robolectric',
>-               '-l', 'third_party/xstream'
>-    ],
>+    'condition': 'checkout_linux and (checkout_x86 or checkout_x64)',
>+    'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
>+               '--arch=x86'],
>   },
>   {
>-    'name': 'objenesis',
>+    'name': 'sysroot_mips',
>     'pattern': '.',
>-    'action': ['python',
>-               'src/build/android/update_deps/update_third_party_deps.py',
>-               'download',
>-               '-b', 'chromium-objenesis',
>-               '-l', 'third_party/objenesis'
>-    ],
>+    'condition': 'checkout_linux and checkout_mips',
>+    'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
>+               '--arch=mips'],
>   },
>   {
>-    # Downloads the current stable linux sysroot to build/linux/ if needed.
>-    # This sysroot updates at about the same rate that the chrome build deps
>-    # change. This script is a no-op except for linux users who are doing
>-    # official chrome builds or cross compiling.
>-    'name': 'sysroot',
>+    'name': 'sysroot_x64',
>     'pattern': '.',
>+    'condition': 'checkout_linux and checkout_x64',
>     'action': ['python', 'src/build/linux/sysroot_scripts/install-sysroot.py',
>-               '--running-as-hook'],
>+               '--arch=x64'],
>   },
>   {
>     # Update the Windows toolchain if necessary.
>@@ -444,6 +324,30 @@ hooks = [
>                 '-d', 'src/tools/luci-go/linux64',
>     ],
>   },
>+  {
>+    'name': 'Android CIPD Ensure',
>+    'pattern': '.',
>+    'condition': 'checkout_android',
>+    'action': ['src/build/cipd/cipd_wrapper.py',
>+               '--chromium-root', 'src',
>+               '--ensure-file', 'src/build/cipd/android/android.ensure',
>+    ],
>+  },
>+  # Android dependencies. Many are downloaded using Google Storage these days.
>+  # They're copied from https://cs.chromium.org/chromium/src/DEPS for all
>+  # such dependencies we share with Chromium.
>+  {
>+    # This downloads SDK extras and puts them in the
>+    # third_party/android_tools/sdk/extras directory.
>+    'name': 'sdkextras',
>+    'pattern': '.',
>+    # When adding a new sdk extras package to download, add the package
>+    # directory and zip file to .gitignore in third_party/android_tools.
>+    'action': ['python',
>+               'src/build/android/play_services/update.py',
>+               'download'
>+    ],
>+  },
> ]
> 
> recursedeps = [
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.chromium b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.chromium
>index 88c069734ac2342aad55414a2753243c273db883..c25373e23ce4214f22882c6d9904bea39681820c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.chromium
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.chromium
>@@ -1,6 +1,6 @@
> Name: libyuv
> URL: http://code.google.com/p/libyuv/
>-Version: 1678
>+Version: 1703
> License: BSD
> License File: LICENSE
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.md b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.md
>index b59b71c5d2b4faab505641d9dd9173cba9178b4f..7b6619220b8dcd183948083221de49df6fb4b2a7 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.md
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/README.md
>@@ -1,12 +1,12 @@
> **libyuv** is an open source project that includes YUV scaling and conversion functionality.
> 
> * Scale YUV to prepare content for compression, with point, bilinear or box filter.
>-* Convert to YUV from webcam formats.
>-* Convert from YUV to formats for rendering/effects.
>+* Convert to YUV from webcam formats for compression.
>+* Convert to RGB formats for rendering/effects.
> * Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
>-* Optimized for SSE2/SSSE3/AVX2 on x86/x64.
>+* Optimized for SSSE3/AVX2 on x86/x64.
> * Optimized for Neon on Arm.
>-* Optimized for DSP R2 on Mips.
>+* Optimized for MSA on Mips.
> 
> ### Development
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/deprecated_builds.md b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/deprecated_builds.md
>index d54a0282c155acfe3d3ebd3efb6699dd72cc5b56..29e0bf9bc30bcbb49e8b05c6e205906cf7baa6a4 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/deprecated_builds.md
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/deprecated_builds.md
>@@ -165,11 +165,11 @@ mipsel
> 
> arm32 disassembly:
> 
>-    third_party/android_tools/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-objdump -d out/Release/obj/source/libyuv.row_neon.o
>+    third_party/android_ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-objdump -d out/Release/obj/source/libyuv.row_neon.o
> 
> arm64 disassembly:
> 
>-    third_party/android_tools/ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d out/Release/obj/source/libyuv.row_neon64.o
>+    third_party/android_ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d out/Release/obj/source/libyuv.row_neon64.o
> 
> Running tests:
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/environment_variables.md b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/environment_variables.md
>index 9071c54de2349dc3e0d50fecdd6fba6281e2fb3e..c28d83e7dc14905e9506e4f7eee8ac35957ffb16 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/environment_variables.md
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/environment_variables.md
>@@ -17,7 +17,7 @@ By default the cpu is detected and the most advanced form of SIMD is used.  But
>     LIBYUV_DISABLE_AVX512BW
>     LIBYUV_DISABLE_ERMS
>     LIBYUV_DISABLE_FMA3
>-    LIBYUV_DISABLE_DSPR2
>+    LIBYUV_DISABLE_MSA
>     LIBYUV_DISABLE_NEON
> 
> # Test Width/Height/Repeat
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/formats.md b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/formats.md
>index 2b75d31ac7507a5379fcba46e9ae278d415a7c8a..f78f57bb4c41a3e150842a0c4fb5c043e33656f0 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/formats.md
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/formats.md
>@@ -35,9 +35,8 @@ This is how OSX formats map to libyuv
> # FOURCC (Four Charactacter Code) List
> 
> The following is extracted from video_common.h as a complete list of formats supported by libyuv.
>-
>     enum FourCC {
>-      // 8 Primary YUV formats: 5 planar, 2 biplanar, 2 packed.
>+      // 9 Primary YUV formats: 5 planar, 2 biplanar, 2 packed.
>       FOURCC_I420 = FOURCC('I', '4', '2', '0'),
>       FOURCC_I422 = FOURCC('I', '4', '2', '2'),
>       FOURCC_I444 = FOURCC('I', '4', '4', '4'),
>@@ -46,37 +45,35 @@ The following is extracted from video_common.h as a complete list of formats sup
>       FOURCC_NV12 = FOURCC('N', 'V', '1', '2'),
>       FOURCC_YUY2 = FOURCC('Y', 'U', 'Y', '2'),
>       FOURCC_UYVY = FOURCC('U', 'Y', 'V', 'Y'),
>+      FOURCC_H010 = FOURCC('H', '0', '1', '0'),  // unofficial fourcc. 10 bit lsb
> 
>-      // 1 Secondary YUV formats: row biplanar.
>+      // 1 Secondary YUV format: row biplanar.
>       FOURCC_M420 = FOURCC('M', '4', '2', '0'),
> 
>-      // 9 Primary RGB formats: 4 32 bpp, 2 24 bpp, 3 16 bpp.
>+      // 11 Primary RGB formats: 4 32 bpp, 2 24 bpp, 3 16 bpp, 1 10 bpc
>       FOURCC_ARGB = FOURCC('A', 'R', 'G', 'B'),
>       FOURCC_BGRA = FOURCC('B', 'G', 'R', 'A'),
>       FOURCC_ABGR = FOURCC('A', 'B', 'G', 'R'),
>+      FOURCC_AR30 = FOURCC('A', 'R', '3', '0'),  // 10 bit per channel. 2101010.
>+      FOURCC_AB30 = FOURCC('A', 'B', '3', '0'),  // ABGR version of 10 bit
>       FOURCC_24BG = FOURCC('2', '4', 'B', 'G'),
>-      FOURCC_RAW  = FOURCC('r', 'a', 'w', ' '),
>+      FOURCC_RAW = FOURCC('r', 'a', 'w', ' '),
>       FOURCC_RGBA = FOURCC('R', 'G', 'B', 'A'),
>       FOURCC_RGBP = FOURCC('R', 'G', 'B', 'P'),  // rgb565 LE.
>       FOURCC_RGBO = FOURCC('R', 'G', 'B', 'O'),  // argb1555 LE.
>       FOURCC_R444 = FOURCC('R', '4', '4', '4'),  // argb4444 LE.
> 
>-      // 4 Secondary RGB formats: 4 Bayer Patterns.
>-      FOURCC_RGGB = FOURCC('R', 'G', 'G', 'B'),
>-      FOURCC_BGGR = FOURCC('B', 'G', 'G', 'R'),
>-      FOURCC_GRBG = FOURCC('G', 'R', 'B', 'G'),
>-      FOURCC_GBRG = FOURCC('G', 'B', 'R', 'G'),
>-
>       // 1 Primary Compressed YUV format.
>       FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'),
> 
>-      // 5 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
>+      // 7 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
>       FOURCC_YV12 = FOURCC('Y', 'V', '1', '2'),
>       FOURCC_YV16 = FOURCC('Y', 'V', '1', '6'),
>       FOURCC_YV24 = FOURCC('Y', 'V', '2', '4'),
>       FOURCC_YU12 = FOURCC('Y', 'U', '1', '2'),  // Linux version of I420.
>       FOURCC_J420 = FOURCC('J', '4', '2', '0'),
>-      FOURCC_J400 = FOURCC('J', '4', '0', '0'),
>+      FOURCC_J400 = FOURCC('J', '4', '0', '0'),  // unofficial fourcc
>+      FOURCC_H420 = FOURCC('H', '4', '2', '0'),  // unofficial fourcc
> 
>       // 14 Auxiliary aliases.  CanonicalFourCC() maps these to canonical fourcc.
>       FOURCC_IYUV = FOURCC('I', 'Y', 'U', 'V'),  // Alias for I420.
>@@ -97,9 +94,6 @@ The following is extracted from video_common.h as a complete list of formats sup
>       FOURCC_L565 = FOURCC('L', '5', '6', '5'),  // Alias for RGBP.
>       FOURCC_5551 = FOURCC('5', '5', '5', '1'),  // Alias for RGBO.
> 
>-      // 1 Auxiliary compressed YUV format set aside for capturer.
>-      FOURCC_H264 = FOURCC('H', '2', '6', '4'),
>-
> # Planar YUV
>       The following formats contains a full size Y plane followed by 1 or 2
>         planes for UV: I420, I422, I444, I400, NV21, NV12, I400
>@@ -145,3 +139,24 @@ There are 2 RGB layouts - RGB24 (aka 24BG) and RAW
> 
> RGB24 is B,G,R in memory
> RAW is R,G,B in memory
>+
>+# AR30 and XR30
>+
>+AR30 is 2 10 10 10 ARGB stored in little endian order.
>+The 2 bit alpha has 4 values.  Here are the comparable 8 bit alpha values.
>+0 - 0.    00000000b = 0x00 = 0
>+1 - 33%.  01010101b = 0x55 = 85
>+2 - 66%.  10101010b = 0xaa = 170
>+3 - 100%. 11111111b = 0xff = 255
>+The 10 bit RGB values range from 0 to 1023.
>+XR30 is the same as AR30 but with no alpha channel.
>+
>+# NV12 and NV21
>+
>+NV12 is a biplanar format with a full sized Y plane followed by a single
>+chroma plane with weaved U and V values.
>+NV21 is the same but with weaved V and U values.
>+The 12 in NV12 refers to 12 bits per pixel.  NV12 has a half width and half
>+height chroma channel, and therefore is a 420 subsampling.
>+NV16 is 16 bits per pixel, with half width and full height.  aka 422.
>+NV24 is 24 bits per pixel with full sized chroma channel. aka 444.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/getting_started.md b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/getting_started.md
>index 58e05f3cbcba7141aa4c6d367023c5bd509b1836..09297b66a5cc784de596690fb4bfe36ad4232b87 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/getting_started.md
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/docs/getting_started.md
>@@ -129,25 +129,20 @@ ia32
>     ninja -v -C out/Debug libyuv_unittest
>     ninja -v -C out/Release libyuv_unittest
> 
>-mipsel
>+mips
> 
>-    gn gen out/Release "--args=is_debug=false target_os=\"android\" target_cpu=\"mipsel\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=false"
>-    gn gen out/Debug "--args=is_debug=true target_os=\"android\" target_cpu=\"mipsel\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=false"
>-    ninja -v -C out/Debug libyuv_unittest
>-    ninja -v -C out/Release libyuv_unittest
>-
>-    gn gen out/Release "--args=is_debug=false target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=false"
>-    gn gen out/Debug "--args=is_debug=true target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=false"
>+    gn gen out/Release "--args=is_debug=false target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=true"
>+    gn gen out/Debug "--args=is_debug=true target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=true"
>     ninja -v -C out/Debug libyuv_unittest
>     ninja -v -C out/Release libyuv_unittest
> 
> arm disassembly:
> 
>-    third_party/android_tools/ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv/row_common.o >row_common.txt
>+    third_party/android_ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv/row_common.o >row_common.txt
> 
>-    third_party/android_tools/ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv_neon/row_neon.o >row_neon.txt
>+    third_party/android_ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv_neon/row_neon.o >row_neon.txt
> 
>-    third_party/android_tools/ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv_neon/row_neon64.o >row_neon64.txt
>+    third_party/android_ndk/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-objdump -d ./out/Release/obj/libyuv_neon/row_neon64.o >row_neon64.txt
> 
> Running tests:
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/basic_types.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/basic_types.h
>index 7d98bb93f0eed1629124f3b374cc8df6b6241b79..01d9dfc773628adf90c4c223dd0926b7ce7ff2f0 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/basic_types.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/basic_types.h
>@@ -11,79 +11,33 @@
> #ifndef INCLUDE_LIBYUV_BASIC_TYPES_H_
> #define INCLUDE_LIBYUV_BASIC_TYPES_H_
> 
>-#include <stddef.h>  // for NULL, size_t
>+#include <stddef.h>  // For size_t and NULL
>+
>+#if !defined(INT_TYPES_DEFINED) && !defined(GG_LONGLONG)
>+#define INT_TYPES_DEFINED
> 
> #if defined(_MSC_VER) && (_MSC_VER < 1600)
> #include <sys/types.h>  // for uintptr_t on x86
>+typedef unsigned __int64 uint64_t;
>+typedef __int64 int64_t;
>+typedef unsigned int uint32_t;
>+typedef int int32_t;
>+typedef unsigned short uint16_t;
>+typedef short int16_t;
>+typedef unsigned char uint8_t;
>+typedef signed char int8_t;
> #else
>-#include <stdint.h>  // for uintptr_t
>-#endif
>-
>-#ifndef GG_LONGLONG
>-#ifndef INT_TYPES_DEFINED
>-#define INT_TYPES_DEFINED
>-#ifdef COMPILER_MSVC
>-typedef unsigned __int64 uint64;
>-typedef __int64 int64;
>-#ifndef INT64_C
>-#define INT64_C(x) x##I64
>-#endif
>-#ifndef UINT64_C
>-#define UINT64_C(x) x##UI64
>-#endif
>-#define INT64_F "I64"
>-#else  // COMPILER_MSVC
>-#if defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__)
>-typedef unsigned long uint64;  // NOLINT
>-typedef long int64;            // NOLINT
>-#ifndef INT64_C
>-#define INT64_C(x) x##L
>-#endif
>-#ifndef UINT64_C
>-#define UINT64_C(x) x##UL
>-#endif
>-#define INT64_F "l"
>-#else  // defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__)
>-typedef unsigned long long uint64;  // NOLINT
>-typedef long long int64;            // NOLINT
>-#ifndef INT64_C
>-#define INT64_C(x) x##LL
>-#endif
>-#ifndef UINT64_C
>-#define UINT64_C(x) x##ULL
>-#endif
>-#define INT64_F "ll"
>-#endif  // __LP64__
>-#endif  // COMPILER_MSVC
>-typedef unsigned int uint32;
>-typedef int int32;
>-typedef unsigned short uint16;  // NOLINT
>-typedef short int16;            // NOLINT
>-typedef unsigned char uint8;
>-typedef signed char int8;
>+#include <stdint.h>  // for uintptr_t and C99 types
>+#endif               // defined(_MSC_VER) && (_MSC_VER < 1600)
>+typedef uint64_t uint64;
>+typedef int64_t int64;
>+typedef uint32_t uint32;
>+typedef int32_t int32;
>+typedef uint16_t uint16;
>+typedef int16_t int16;
>+typedef uint8_t uint8;
>+typedef int8_t int8;
> #endif  // INT_TYPES_DEFINED
>-#endif  // GG_LONGLONG
>-
>-// Detect compiler is for x86 or x64.
>-#if defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
>-    defined(_M_IX86)
>-#define CPU_X86 1
>-#endif
>-// Detect compiler is for ARM.
>-#if defined(__arm__) || defined(_M_ARM)
>-#define CPU_ARM 1
>-#endif
>-
>-#ifndef ALIGNP
>-#ifdef __cplusplus
>-#define ALIGNP(p, t)        \
>-  reinterpret_cast<uint8*>( \
>-      ((reinterpret_cast<uintptr_t>(p) + ((t)-1)) & ~((t)-1)))
>-#else
>-#define ALIGNP(p, t) \
>-  (uint8*)((((uintptr_t)(p) + ((t)-1)) & ~((t)-1))) /* NOLINT */
>-#endif
>-#endif
> 
> #if !defined(LIBYUV_API)
> #if defined(_WIN32) || defined(__CYGWIN__)
>@@ -103,15 +57,9 @@ typedef signed char int8;
> #endif  // __GNUC__
> #endif  // LIBYUV_API
> 
>+// TODO(fbarchard): Remove bool macros.
> #define LIBYUV_BOOL int
> #define LIBYUV_FALSE 0
> #define LIBYUV_TRUE 1
> 
>-// Visual C x86 or GCC little endian.
>-#if defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
>-    defined(_M_IX86) || defined(__arm__) || defined(_M_ARM) ||     \
>-    (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
>-#define LIBYUV_LITTLE_ENDIAN
>-#endif
>-
> #endif  // INCLUDE_LIBYUV_BASIC_TYPES_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare.h
>index a06eff2066f1e9b59303ed5623565117ae71687f..3353ad71c68a805146cf4ca6edfe39ed2636271d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare.h
>@@ -20,80 +20,85 @@ extern "C" {
> 
> // Compute a hash for specified memory. Seed of 5381 recommended.
> LIBYUV_API
>-uint32 HashDjb2(const uint8* src, uint64 count, uint32 seed);
>+uint32_t HashDjb2(const uint8_t* src, uint64_t count, uint32_t seed);
> 
> // Hamming Distance
> LIBYUV_API
>-uint64 ComputeHammingDistance(const uint8* src_a,
>-                              const uint8* src_b,
>-                              int count);
>+uint64_t ComputeHammingDistance(const uint8_t* src_a,
>+                                const uint8_t* src_b,
>+                                int count);
> 
> // Scan an opaque argb image and return fourcc based on alpha offset.
> // Returns FOURCC_ARGB, FOURCC_BGRA, or 0 if unknown.
> LIBYUV_API
>-uint32 ARGBDetect(const uint8* argb, int stride_argb, int width, int height);
>+uint32_t ARGBDetect(const uint8_t* argb,
>+                    int stride_argb,
>+                    int width,
>+                    int height);
> 
> // Sum Square Error - used to compute Mean Square Error or PSNR.
> LIBYUV_API
>-uint64 ComputeSumSquareError(const uint8* src_a, const uint8* src_b, int count);
>+uint64_t ComputeSumSquareError(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count);
> 
> LIBYUV_API
>-uint64 ComputeSumSquareErrorPlane(const uint8* src_a,
>-                                  int stride_a,
>-                                  const uint8* src_b,
>-                                  int stride_b,
>-                                  int width,
>-                                  int height);
>+uint64_t ComputeSumSquareErrorPlane(const uint8_t* src_a,
>+                                    int stride_a,
>+                                    const uint8_t* src_b,
>+                                    int stride_b,
>+                                    int width,
>+                                    int height);
> 
> static const int kMaxPsnr = 128;
> 
> LIBYUV_API
>-double SumSquareErrorToPsnr(uint64 sse, uint64 count);
>+double SumSquareErrorToPsnr(uint64_t sse, uint64_t count);
> 
> LIBYUV_API
>-double CalcFramePsnr(const uint8* src_a,
>+double CalcFramePsnr(const uint8_t* src_a,
>                      int stride_a,
>-                     const uint8* src_b,
>+                     const uint8_t* src_b,
>                      int stride_b,
>                      int width,
>                      int height);
> 
> LIBYUV_API
>-double I420Psnr(const uint8* src_y_a,
>+double I420Psnr(const uint8_t* src_y_a,
>                 int stride_y_a,
>-                const uint8* src_u_a,
>+                const uint8_t* src_u_a,
>                 int stride_u_a,
>-                const uint8* src_v_a,
>+                const uint8_t* src_v_a,
>                 int stride_v_a,
>-                const uint8* src_y_b,
>+                const uint8_t* src_y_b,
>                 int stride_y_b,
>-                const uint8* src_u_b,
>+                const uint8_t* src_u_b,
>                 int stride_u_b,
>-                const uint8* src_v_b,
>+                const uint8_t* src_v_b,
>                 int stride_v_b,
>                 int width,
>                 int height);
> 
> LIBYUV_API
>-double CalcFrameSsim(const uint8* src_a,
>+double CalcFrameSsim(const uint8_t* src_a,
>                      int stride_a,
>-                     const uint8* src_b,
>+                     const uint8_t* src_b,
>                      int stride_b,
>                      int width,
>                      int height);
> 
> LIBYUV_API
>-double I420Ssim(const uint8* src_y_a,
>+double I420Ssim(const uint8_t* src_y_a,
>                 int stride_y_a,
>-                const uint8* src_u_a,
>+                const uint8_t* src_u_a,
>                 int stride_u_a,
>-                const uint8* src_v_a,
>+                const uint8_t* src_v_a,
>                 int stride_v_a,
>-                const uint8* src_y_b,
>+                const uint8_t* src_y_b,
>                 int stride_y_b,
>-                const uint8* src_u_b,
>+                const uint8_t* src_u_b,
>                 int stride_u_b,
>-                const uint8* src_v_b,
>+                const uint8_t* src_v_b,
>                 int stride_v_b,
>                 int width,
>                 int height);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare_row.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare_row.h
>index 2e5ebe508d1c91056641aababfbbee6269157b5e..72ee740600af1c643a2bf1473f735ce829a144f3 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare_row.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/compare_row.h
>@@ -18,17 +18,20 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-#if defined(__pnacl__) || defined(__CLR_VER) || \
>+#if defined(__pnacl__) || defined(__CLR_VER) ||            \
>+    (defined(__native_client__) && defined(__x86_64__)) || \
>     (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
> #define LIBYUV_DISABLE_X86
> #endif
>+#if defined(__native_client__)
>+#define LIBYUV_DISABLE_NEON
>+#endif
> // MemorySanitizer does not support assembly code yet. http://crbug.com/344505
> #if defined(__has_feature)
> #if __has_feature(memory_sanitizer)
> #define LIBYUV_DISABLE_X86
> #endif
> #endif
>-
> // Visual C 2012 required for AVX2.
> #if defined(_M_IX86) && !defined(__clang__) && defined(_MSC_VER) && \
>     _MSC_VER >= 1700
>@@ -87,22 +90,44 @@ extern "C" {
> #define HAS_SUMSQUAREERROR_MSA
> #endif
> 
>-uint32 HammingDistance_C(const uint8* src_a, const uint8* src_b, int count);
>-uint32 HammingDistance_SSE42(const uint8* src_a, const uint8* src_b, int count);
>-uint32 HammingDistance_SSSE3(const uint8* src_a, const uint8* src_b, int count);
>-uint32 HammingDistance_AVX2(const uint8* src_a, const uint8* src_b, int count);
>-uint32 HammingDistance_NEON(const uint8* src_a, const uint8* src_b, int count);
>-uint32 HammingDistance_MSA(const uint8* src_a, const uint8* src_b, int count);
>-
>-uint32 SumSquareError_C(const uint8* src_a, const uint8* src_b, int count);
>-uint32 SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count);
>-uint32 SumSquareError_AVX2(const uint8* src_a, const uint8* src_b, int count);
>-uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count);
>-uint32 SumSquareError_MSA(const uint8* src_a, const uint8* src_b, int count);
>-
>-uint32 HashDjb2_C(const uint8* src, int count, uint32 seed);
>-uint32 HashDjb2_SSE41(const uint8* src, int count, uint32 seed);
>-uint32 HashDjb2_AVX2(const uint8* src, int count, uint32 seed);
>+uint32_t HammingDistance_C(const uint8_t* src_a,
>+                           const uint8_t* src_b,
>+                           int count);
>+uint32_t HammingDistance_SSE42(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count);
>+uint32_t HammingDistance_SSSE3(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count);
>+uint32_t HammingDistance_AVX2(const uint8_t* src_a,
>+                              const uint8_t* src_b,
>+                              int count);
>+uint32_t HammingDistance_NEON(const uint8_t* src_a,
>+                              const uint8_t* src_b,
>+                              int count);
>+uint32_t HammingDistance_MSA(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count);
>+
>+uint32_t SumSquareError_C(const uint8_t* src_a,
>+                          const uint8_t* src_b,
>+                          int count);
>+uint32_t SumSquareError_SSE2(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count);
>+uint32_t SumSquareError_AVX2(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count);
>+uint32_t SumSquareError_NEON(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count);
>+uint32_t SumSquareError_MSA(const uint8_t* src_a,
>+                            const uint8_t* src_b,
>+                            int count);
>+
>+uint32_t HashDjb2_C(const uint8_t* src, int count, uint32_t seed);
>+uint32_t HashDjb2_SSE41(const uint8_t* src, int count, uint32_t seed);
>+uint32_t HashDjb2_AVX2(const uint8_t* src, int count, uint32_t seed);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert.h
>index f096d193a74ee808f9995c8ed34700bbf757a662..d12ef24f799792a5695bf51e67e1e972892b0125 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert.h
>@@ -27,34 +27,34 @@ extern "C" {
> 
> // Convert I444 to I420.
> LIBYUV_API
>-int I444ToI420(const uint8* src_y,
>+int I444ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert I422 to I420.
> LIBYUV_API
>-int I422ToI420(const uint8* src_y,
>+int I422ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
>@@ -62,30 +62,67 @@ int I422ToI420(const uint8* src_y,
> // Copy I420 to I420.
> #define I420ToI420 I420Copy
> LIBYUV_API
>-int I420Copy(const uint8* src_y,
>+int I420Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height);
> 
>+// Copy I010 to I010
>+#define I010ToI010 I010Copy
>+#define H010ToH010 I010Copy
>+LIBYUV_API
>+int I010Copy(const uint16_t* src_y,
>+             int src_stride_y,
>+             const uint16_t* src_u,
>+             int src_stride_u,
>+             const uint16_t* src_v,
>+             int src_stride_v,
>+             uint16_t* dst_y,
>+             int dst_stride_y,
>+             uint16_t* dst_u,
>+             int dst_stride_u,
>+             uint16_t* dst_v,
>+             int dst_stride_v,
>+             int width,
>+             int height);
>+
>+// Convert 10 bit YUV to 8 bit
>+#define H010ToH420 I010ToI420
>+LIBYUV_API
>+int I010ToI420(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_y,
>+               int dst_stride_y,
>+               uint8_t* dst_u,
>+               int dst_stride_u,
>+               uint8_t* dst_v,
>+               int dst_stride_v,
>+               int width,
>+               int height);
>+
> // Convert I400 (grey) to I420.
> LIBYUV_API
>-int I400ToI420(const uint8* src_y,
>+int I400ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
>@@ -94,204 +131,204 @@ int I400ToI420(const uint8* src_y,
> 
> // Convert NV12 to I420.
> LIBYUV_API
>-int NV12ToI420(const uint8* src_y,
>+int NV12ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_uv,
>+               const uint8_t* src_uv,
>                int src_stride_uv,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert NV21 to I420.
> LIBYUV_API
>-int NV21ToI420(const uint8* src_y,
>+int NV21ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_vu,
>+               const uint8_t* src_vu,
>                int src_stride_vu,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert YUY2 to I420.
> LIBYUV_API
>-int YUY2ToI420(const uint8* src_yuy2,
>+int YUY2ToI420(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert UYVY to I420.
> LIBYUV_API
>-int UYVYToI420(const uint8* src_uyvy,
>+int UYVYToI420(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert M420 to I420.
> LIBYUV_API
>-int M420ToI420(const uint8* src_m420,
>+int M420ToI420(const uint8_t* src_m420,
>                int src_stride_m420,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert Android420 to I420.
> LIBYUV_API
>-int Android420ToI420(const uint8* src_y,
>+int Android420ToI420(const uint8_t* src_y,
>                      int src_stride_y,
>-                     const uint8* src_u,
>+                     const uint8_t* src_u,
>                      int src_stride_u,
>-                     const uint8* src_v,
>+                     const uint8_t* src_v,
>                      int src_stride_v,
>-                     int pixel_stride_uv,
>-                     uint8* dst_y,
>+                     int src_pixel_stride_uv,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>-                     uint8* dst_u,
>+                     uint8_t* dst_u,
>                      int dst_stride_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_v,
>                      int dst_stride_v,
>                      int width,
>                      int height);
> 
> // ARGB little endian (bgra in memory) to I420.
> LIBYUV_API
>-int ARGBToI420(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_y,
>+int ARGBToI420(const uint8_t* src_argb,
>+               int src_stride_argb,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // BGRA little endian (argb in memory) to I420.
> LIBYUV_API
>-int BGRAToI420(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_y,
>+int BGRAToI420(const uint8_t* src_bgra,
>+               int src_stride_bgra,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // ABGR little endian (rgba in memory) to I420.
> LIBYUV_API
>-int ABGRToI420(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_y,
>+int ABGRToI420(const uint8_t* src_abgr,
>+               int src_stride_abgr,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // RGBA little endian (abgr in memory) to I420.
> LIBYUV_API
>-int RGBAToI420(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_y,
>+int RGBAToI420(const uint8_t* src_rgba,
>+               int src_stride_rgba,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // RGB little endian (bgr in memory) to I420.
> LIBYUV_API
>-int RGB24ToI420(const uint8* src_frame,
>-                int src_stride_frame,
>-                uint8* dst_y,
>+int RGB24ToI420(const uint8_t* src_rgb24,
>+                int src_stride_rgb24,
>+                uint8_t* dst_y,
>                 int dst_stride_y,
>-                uint8* dst_u,
>+                uint8_t* dst_u,
>                 int dst_stride_u,
>-                uint8* dst_v,
>+                uint8_t* dst_v,
>                 int dst_stride_v,
>                 int width,
>                 int height);
> 
> // RGB big endian (rgb in memory) to I420.
> LIBYUV_API
>-int RAWToI420(const uint8* src_frame,
>-              int src_stride_frame,
>-              uint8* dst_y,
>+int RAWToI420(const uint8_t* src_raw,
>+              int src_stride_raw,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int width,
>               int height);
> 
> // RGB16 (RGBP fourcc) little endian to I420.
> LIBYUV_API
>-int RGB565ToI420(const uint8* src_frame,
>-                 int src_stride_frame,
>-                 uint8* dst_y,
>+int RGB565ToI420(const uint8_t* src_rgb565,
>+                 int src_stride_rgb565,
>+                 uint8_t* dst_y,
>                  int dst_stride_y,
>-                 uint8* dst_u,
>+                 uint8_t* dst_u,
>                  int dst_stride_u,
>-                 uint8* dst_v,
>+                 uint8_t* dst_v,
>                  int dst_stride_v,
>                  int width,
>                  int height);
> 
> // RGB15 (RGBO fourcc) little endian to I420.
> LIBYUV_API
>-int ARGB1555ToI420(const uint8* src_frame,
>-                   int src_stride_frame,
>-                   uint8* dst_y,
>+int ARGB1555ToI420(const uint8_t* src_argb1555,
>+                   int src_stride_argb1555,
>+                   uint8_t* dst_y,
>                    int dst_stride_y,
>-                   uint8* dst_u,
>+                   uint8_t* dst_u,
>                    int dst_stride_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_v,
>                    int dst_stride_v,
>                    int width,
>                    int height);
> 
> // RGB12 (R444 fourcc) little endian to I420.
> LIBYUV_API
>-int ARGB4444ToI420(const uint8* src_frame,
>-                   int src_stride_frame,
>-                   uint8* dst_y,
>+int ARGB4444ToI420(const uint8_t* src_argb4444,
>+                   int src_stride_argb4444,
>+                   uint8_t* dst_y,
>                    int dst_stride_y,
>-                   uint8* dst_u,
>+                   uint8_t* dst_u,
>                    int dst_stride_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_v,
>                    int dst_stride_v,
>                    int width,
>                    int height);
>@@ -300,13 +337,13 @@ int ARGB4444ToI420(const uint8* src_frame,
> // src_width/height provided by capture.
> // dst_width/height for clipping determine final size.
> LIBYUV_API
>-int MJPGToI420(const uint8* sample,
>+int MJPGToI420(const uint8_t* sample,
>                size_t sample_size,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int src_width,
>                int src_height,
>@@ -315,7 +352,10 @@ int MJPGToI420(const uint8* sample,
> 
> // Query size of MJPG in pixels.
> LIBYUV_API
>-int MJPGSize(const uint8* sample, size_t sample_size, int* width, int* height);
>+int MJPGSize(const uint8_t* sample,
>+             size_t sample_size,
>+             int* width,
>+             int* height);
> #endif
> 
> // Convert camera sample to I420 with cropping, rotation and vertical flip.
>@@ -338,16 +378,16 @@ int MJPGSize(const uint8* sample, size_t sample_size, int* width, int* height);
> //    Must be less than or equal to src_width/src_height
> //    Cropping parameters are pre-rotation.
> // "rotation" can be 0, 90, 180 or 270.
>-// "format" is a fourcc. ie 'I420', 'YUY2'
>+// "fourcc" is a fourcc. ie 'I420', 'YUY2'
> // Returns 0 for successful; -1 for invalid parameter. Non-zero for failure.
> LIBYUV_API
>-int ConvertToI420(const uint8* src_frame,
>-                  size_t src_size,
>-                  uint8* dst_y,
>+int ConvertToI420(const uint8_t* sample,
>+                  size_t sample_size,
>+                  uint8_t* dst_y,
>                   int dst_stride_y,
>-                  uint8* dst_u,
>+                  uint8_t* dst_u,
>                   int dst_stride_u,
>-                  uint8* dst_v,
>+                  uint8_t* dst_v,
>                   int dst_stride_v,
>                   int crop_x,
>                   int crop_y,
>@@ -356,7 +396,7 @@ int ConvertToI420(const uint8* src_frame,
>                   int crop_width,
>                   int crop_height,
>                   enum RotationMode rotation,
>-                  uint32 format);
>+                  uint32_t fourcc);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_argb.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_argb.h
>index f43a5060bdbf7cd033d155d2af2ba85cbbdeb13d..ab772b6c32334c8eac8600c281c9aa3f082a75b9 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_argb.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_argb.h
>@@ -30,102 +30,167 @@ extern "C" {
> 
> // Copy ARGB to ARGB.
> LIBYUV_API
>-int ARGBCopy(const uint8* src_argb,
>+int ARGBCopy(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>              int width,
>              int height);
> 
> // Convert I420 to ARGB.
> LIBYUV_API
>-int I420ToARGB(const uint8* src_y,
>+int I420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Duplicate prototype for function in convert_from.h for remoting.
> LIBYUV_API
>-int I420ToABGR(const uint8* src_y,
>+int I420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
>+// Convert I010 to ARGB.
>+LIBYUV_API
>+int I010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
>+// Convert I010 to ARGB.
>+LIBYUV_API
>+int I010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height);
>+
>+// Convert I010 to ABGR.
>+LIBYUV_API
>+int I010ToABGR(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
>+// Convert H010 to ARGB.
>+LIBYUV_API
>+int H010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height);
>+
>+// Convert H010 to ABGR.
>+LIBYUV_API
>+int H010ToABGR(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
> // Convert I422 to ARGB.
> LIBYUV_API
>-int I422ToARGB(const uint8* src_y,
>+int I422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert I444 to ARGB.
> LIBYUV_API
>-int I444ToARGB(const uint8* src_y,
>+int I444ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert J444 to ARGB.
> LIBYUV_API
>-int J444ToARGB(const uint8* src_y,
>+int J444ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert I444 to ABGR.
> LIBYUV_API
>-int I444ToABGR(const uint8* src_y,
>+int I444ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert I420 with Alpha to preattenuated ARGB.
> LIBYUV_API
>-int I420AlphaToARGB(const uint8* src_y,
>+int I420AlphaToARGB(const uint8_t* src_y,
>                     int src_stride_y,
>-                    const uint8* src_u,
>+                    const uint8_t* src_u,
>                     int src_stride_u,
>-                    const uint8* src_v,
>+                    const uint8_t* src_v,
>                     int src_stride_v,
>-                    const uint8* src_a,
>+                    const uint8_t* src_a,
>                     int src_stride_a,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height,
>@@ -133,15 +198,15 @@ int I420AlphaToARGB(const uint8* src_y,
> 
> // Convert I420 with Alpha to preattenuated ABGR.
> LIBYUV_API
>-int I420AlphaToABGR(const uint8* src_y,
>+int I420AlphaToABGR(const uint8_t* src_y,
>                     int src_stride_y,
>-                    const uint8* src_u,
>+                    const uint8_t* src_u,
>                     int src_stride_u,
>-                    const uint8* src_v,
>+                    const uint8_t* src_v,
>                     int src_stride_v,
>-                    const uint8* src_a,
>+                    const uint8_t* src_a,
>                     int src_stride_a,
>-                    uint8* dst_abgr,
>+                    uint8_t* dst_abgr,
>                     int dst_stride_abgr,
>                     int width,
>                     int height,
>@@ -149,18 +214,18 @@ int I420AlphaToABGR(const uint8* src_y,
> 
> // Convert I400 (grey) to ARGB.  Reverse of ARGBToI400.
> LIBYUV_API
>-int I400ToARGB(const uint8* src_y,
>+int I400ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert J400 (jpeg grey) to ARGB.
> LIBYUV_API
>-int J400ToARGB(const uint8* src_y,
>+int J400ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
>@@ -170,180 +235,288 @@ int J400ToARGB(const uint8* src_y,
> 
> // Convert NV12 to ARGB.
> LIBYUV_API
>-int NV12ToARGB(const uint8* src_y,
>+int NV12ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_uv,
>+               const uint8_t* src_uv,
>                int src_stride_uv,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert NV21 to ARGB.
> LIBYUV_API
>-int NV21ToARGB(const uint8* src_y,
>+int NV21ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_vu,
>+               const uint8_t* src_vu,
>                int src_stride_vu,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
>+// Convert NV12 to ABGR.
>+int NV12ToABGR(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_uv,
>+               int src_stride_uv,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
>+// Convert NV21 to ABGR.
>+LIBYUV_API
>+int NV21ToABGR(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_vu,
>+               int src_stride_vu,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
>+// Convert NV12 to RGB24.
>+LIBYUV_API
>+int NV12ToRGB24(const uint8_t* src_y,
>+                int src_stride_y,
>+                const uint8_t* src_uv,
>+                int src_stride_uv,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>+                int width,
>+                int height);
>+
>+// Convert NV21 to RGB24.
>+LIBYUV_API
>+int NV21ToRGB24(const uint8_t* src_y,
>+                int src_stride_y,
>+                const uint8_t* src_vu,
>+                int src_stride_vu,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>+                int width,
>+                int height);
>+
> // Convert M420 to ARGB.
> LIBYUV_API
>-int M420ToARGB(const uint8* src_m420,
>+int M420ToARGB(const uint8_t* src_m420,
>                int src_stride_m420,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert YUY2 to ARGB.
> LIBYUV_API
>-int YUY2ToARGB(const uint8* src_yuy2,
>+int YUY2ToARGB(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert UYVY to ARGB.
> LIBYUV_API
>-int UYVYToARGB(const uint8* src_uyvy,
>+int UYVYToARGB(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert J420 to ARGB.
> LIBYUV_API
>-int J420ToARGB(const uint8* src_y,
>+int J420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert J422 to ARGB.
> LIBYUV_API
>-int J422ToARGB(const uint8* src_y,
>+int J422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert J420 to ABGR.
> LIBYUV_API
>-int J420ToABGR(const uint8* src_y,
>+int J420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert J422 to ABGR.
> LIBYUV_API
>-int J422ToABGR(const uint8* src_y,
>+int J422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert H420 to ARGB.
> LIBYUV_API
>-int H420ToARGB(const uint8* src_y,
>+int H420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert H422 to ARGB.
> LIBYUV_API
>-int H422ToARGB(const uint8* src_y,
>+int H422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert H420 to ABGR.
> LIBYUV_API
>-int H420ToABGR(const uint8* src_y,
>+int H420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert H422 to ABGR.
> LIBYUV_API
>-int H422ToABGR(const uint8* src_y,
>+int H422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
>+// Convert H010 to ARGB.
>+LIBYUV_API
>+int H010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height);
>+
>+// Convert I010 to AR30.
>+LIBYUV_API
>+int I010ToAR30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
>+// Convert H010 to AR30.
>+LIBYUV_API
>+int H010ToAR30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
>+// Convert I010 to AB30.
>+LIBYUV_API
>+int I010ToAB30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height);
>+
>+// Convert H010 to AB30.
>+LIBYUV_API
>+int H010ToAB30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height);
>+
> // BGRA little endian (argb in memory) to ARGB.
> LIBYUV_API
>-int BGRAToARGB(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_argb,
>+int BGRAToARGB(const uint8_t* src_bgra,
>+               int src_stride_bgra,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // ABGR little endian (rgba in memory) to ARGB.
> LIBYUV_API
>-int ABGRToARGB(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_argb,
>+int ABGRToARGB(const uint8_t* src_abgr,
>+               int src_stride_abgr,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // RGBA little endian (abgr in memory) to ARGB.
> LIBYUV_API
>-int RGBAToARGB(const uint8* src_frame,
>-               int src_stride_frame,
>-               uint8* dst_argb,
>+int RGBAToARGB(const uint8_t* src_rgba,
>+               int src_stride_rgba,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
>@@ -353,56 +526,88 @@ int RGBAToARGB(const uint8* src_frame,
> 
> // RGB little endian (bgr in memory) to ARGB.
> LIBYUV_API
>-int RGB24ToARGB(const uint8* src_frame,
>-                int src_stride_frame,
>-                uint8* dst_argb,
>+int RGB24ToARGB(const uint8_t* src_rgb24,
>+                int src_stride_rgb24,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>                 int width,
>                 int height);
> 
> // RGB big endian (rgb in memory) to ARGB.
> LIBYUV_API
>-int RAWToARGB(const uint8* src_frame,
>-              int src_stride_frame,
>-              uint8* dst_argb,
>+int RAWToARGB(const uint8_t* src_raw,
>+              int src_stride_raw,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height);
> 
> // RGB16 (RGBP fourcc) little endian to ARGB.
> LIBYUV_API
>-int RGB565ToARGB(const uint8* src_frame,
>-                 int src_stride_frame,
>-                 uint8* dst_argb,
>+int RGB565ToARGB(const uint8_t* src_rgb565,
>+                 int src_stride_rgb565,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height);
> 
> // RGB15 (RGBO fourcc) little endian to ARGB.
> LIBYUV_API
>-int ARGB1555ToARGB(const uint8* src_frame,
>-                   int src_stride_frame,
>-                   uint8* dst_argb,
>+int ARGB1555ToARGB(const uint8_t* src_argb1555,
>+                   int src_stride_argb1555,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    int width,
>                    int height);
> 
> // RGB12 (R444 fourcc) little endian to ARGB.
> LIBYUV_API
>-int ARGB4444ToARGB(const uint8* src_frame,
>-                   int src_stride_frame,
>-                   uint8* dst_argb,
>+int ARGB4444ToARGB(const uint8_t* src_argb4444,
>+                   int src_stride_argb4444,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    int width,
>                    int height);
> 
>+// Aliases
>+#define AB30ToARGB AR30ToABGR
>+#define AB30ToABGR AR30ToARGB
>+#define AB30ToAR30 AR30ToAB30
>+
>+// Convert AR30 To ARGB.
>+LIBYUV_API
>+int AR30ToARGB(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height);
>+
>+// Convert AR30 To ABGR.
>+LIBYUV_API
>+int AR30ToABGR(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height);
>+
>+// Convert AR30 To AB30.
>+LIBYUV_API
>+int AR30ToAB30(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height);
>+
> #ifdef HAVE_JPEG
> // src_width/height provided by capture
> // dst_width/height for clipping determine final size.
> LIBYUV_API
>-int MJPGToARGB(const uint8* sample,
>+int MJPGToARGB(const uint8_t* sample,
>                size_t sample_size,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int src_width,
>                int src_height,
>@@ -410,8 +615,36 @@ int MJPGToARGB(const uint8* sample,
>                int dst_height);
> #endif
> 
>+// Convert Android420 to ARGB.
>+LIBYUV_API
>+int Android420ToARGB(const uint8_t* src_y,
>+                     int src_stride_y,
>+                     const uint8_t* src_u,
>+                     int src_stride_u,
>+                     const uint8_t* src_v,
>+                     int src_stride_v,
>+                     int src_pixel_stride_uv,
>+                     uint8_t* dst_argb,
>+                     int dst_stride_argb,
>+                     int width,
>+                     int height);
>+
>+// Convert Android420 to ABGR.
>+LIBYUV_API
>+int Android420ToABGR(const uint8_t* src_y,
>+                     int src_stride_y,
>+                     const uint8_t* src_u,
>+                     int src_stride_u,
>+                     const uint8_t* src_v,
>+                     int src_stride_v,
>+                     int src_pixel_stride_uv,
>+                     uint8_t* dst_abgr,
>+                     int dst_stride_abgr,
>+                     int width,
>+                     int height);
>+
> // Convert camera sample to ARGB with cropping, rotation and vertical flip.
>-// "src_size" is needed to parse MJPG.
>+// "sample_size" is needed to parse MJPG.
> // "dst_stride_argb" number of bytes in a row of the dst_argb plane.
> //   Normally this would be the same as dst_width, with recommended alignment
> //   to 16 bytes for better efficiency.
>@@ -430,12 +663,12 @@ int MJPGToARGB(const uint8* sample,
> //    Must be less than or equal to src_width/src_height
> //    Cropping parameters are pre-rotation.
> // "rotation" can be 0, 90, 180 or 270.
>-// "format" is a fourcc. ie 'I420', 'YUY2'
>+// "fourcc" is a fourcc. ie 'I420', 'YUY2'
> // Returns 0 for successful; -1 for invalid parameter. Non-zero for failure.
> LIBYUV_API
>-int ConvertToARGB(const uint8* src_frame,
>-                  size_t src_size,
>-                  uint8* dst_argb,
>+int ConvertToARGB(const uint8_t* sample,
>+                  size_t sample_size,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int crop_x,
>                   int crop_y,
>@@ -444,7 +677,7 @@ int ConvertToARGB(const uint8* src_frame,
>                   int crop_width,
>                   int crop_height,
>                   enum RotationMode rotation,
>-                  uint32 format);
>+                  uint32_t fourcc);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from.h
>index 237f68f57aa192f3c33ae7c828b7fb65ea9f6dc8..5cd8a4bfc04cc24603e70edf87bb5b3aa2dee556 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from.h
>@@ -21,218 +21,233 @@ extern "C" {
> 
> // See Also convert.h for conversions from formats to I420.
> 
>-// I420Copy in convert to I420ToI420.
>+// Convert 8 bit YUV to 10 bit.
>+#define H420ToH010 I420ToI010
>+int I420ToI010(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint16_t* dst_y,
>+               int dst_stride_y,
>+               uint16_t* dst_u,
>+               int dst_stride_u,
>+               uint16_t* dst_v,
>+               int dst_stride_v,
>+               int width,
>+               int height);
> 
> LIBYUV_API
>-int I420ToI422(const uint8* src_y,
>+int I420ToI422(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToI444(const uint8* src_y,
>+int I420ToI444(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Copy to I400. Source can be I420, I422, I444, I400, NV12 or NV21.
> LIBYUV_API
>-int I400Copy(const uint8* src_y,
>+int I400Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>              int width,
>              int height);
> 
> LIBYUV_API
>-int I420ToNV12(const uint8* src_y,
>+int I420ToNV12(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToNV21(const uint8* src_y,
>+int I420ToNV21(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_vu,
>+               uint8_t* dst_vu,
>                int dst_stride_vu,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToYUY2(const uint8* src_y,
>+int I420ToYUY2(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_frame,
>-               int dst_stride_frame,
>+               uint8_t* dst_yuy2,
>+               int dst_stride_yuy2,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToUYVY(const uint8* src_y,
>+int I420ToUYVY(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_frame,
>-               int dst_stride_frame,
>+               uint8_t* dst_uyvy,
>+               int dst_stride_uyvy,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToARGB(const uint8* src_y,
>+int I420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToBGRA(const uint8* src_y,
>+int I420ToBGRA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>-               int dst_stride_argb,
>+               uint8_t* dst_bgra,
>+               int dst_stride_bgra,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToABGR(const uint8* src_y,
>+int I420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>-               int dst_stride_argb,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToRGBA(const uint8* src_y,
>+int I420ToRGBA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int I420ToRGB24(const uint8* src_y,
>+int I420ToRGB24(const uint8_t* src_y,
>                 int src_stride_y,
>-                const uint8* src_u,
>+                const uint8_t* src_u,
>                 int src_stride_u,
>-                const uint8* src_v,
>+                const uint8_t* src_v,
>                 int src_stride_v,
>-                uint8* dst_frame,
>-                int dst_stride_frame,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>                 int width,
>                 int height);
> 
> LIBYUV_API
>-int I420ToRAW(const uint8* src_y,
>+int I420ToRAW(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>-              uint8* dst_frame,
>-              int dst_stride_frame,
>+              uint8_t* dst_raw,
>+              int dst_stride_raw,
>               int width,
>               int height);
> 
> LIBYUV_API
>-int H420ToRGB24(const uint8* src_y,
>+int H420ToRGB24(const uint8_t* src_y,
>                 int src_stride_y,
>-                const uint8* src_u,
>+                const uint8_t* src_u,
>                 int src_stride_u,
>-                const uint8* src_v,
>+                const uint8_t* src_v,
>                 int src_stride_v,
>-                uint8* dst_frame,
>-                int dst_stride_frame,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>                 int width,
>                 int height);
> 
> LIBYUV_API
>-int H420ToRAW(const uint8* src_y,
>+int H420ToRAW(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>-              uint8* dst_frame,
>-              int dst_stride_frame,
>+              uint8_t* dst_raw,
>+              int dst_stride_raw,
>               int width,
>               int height);
> 
> LIBYUV_API
>-int I420ToRGB565(const uint8* src_y,
>+int I420ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_u,
>+                 const uint8_t* src_u,
>                  int src_stride_u,
>-                 const uint8* src_v,
>+                 const uint8_t* src_v,
>                  int src_stride_v,
>-                 uint8* dst_frame,
>-                 int dst_stride_frame,
>+                 uint8_t* dst_rgb565,
>+                 int dst_stride_rgb565,
>                  int width,
>                  int height);
> 
> LIBYUV_API
>-int I422ToRGB565(const uint8* src_y,
>+int I422ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_u,
>+                 const uint8_t* src_u,
>                  int src_stride_u,
>-                 const uint8* src_v,
>+                 const uint8_t* src_v,
>                  int src_stride_v,
>-                 uint8* dst_frame,
>-                 int dst_stride_frame,
>+                 uint8_t* dst_rgb565,
>+                 int dst_stride_rgb565,
>                  int width,
>                  int height);
> 
>@@ -241,57 +256,83 @@ int I422ToRGB565(const uint8* src_y,
> // The order of the dither matrix is first byte is upper left.
> 
> LIBYUV_API
>-int I420ToRGB565Dither(const uint8* src_y,
>+int I420ToRGB565Dither(const uint8_t* src_y,
>                        int src_stride_y,
>-                       const uint8* src_u,
>+                       const uint8_t* src_u,
>                        int src_stride_u,
>-                       const uint8* src_v,
>+                       const uint8_t* src_v,
>                        int src_stride_v,
>-                       uint8* dst_frame,
>-                       int dst_stride_frame,
>-                       const uint8* dither4x4,
>+                       uint8_t* dst_rgb565,
>+                       int dst_stride_rgb565,
>+                       const uint8_t* dither4x4,
>                        int width,
>                        int height);
> 
> LIBYUV_API
>-int I420ToARGB1555(const uint8* src_y,
>+int I420ToARGB1555(const uint8_t* src_y,
>                    int src_stride_y,
>-                   const uint8* src_u,
>+                   const uint8_t* src_u,
>                    int src_stride_u,
>-                   const uint8* src_v,
>+                   const uint8_t* src_v,
>                    int src_stride_v,
>-                   uint8* dst_frame,
>-                   int dst_stride_frame,
>+                   uint8_t* dst_argb1555,
>+                   int dst_stride_argb1555,
>                    int width,
>                    int height);
> 
> LIBYUV_API
>-int I420ToARGB4444(const uint8* src_y,
>+int I420ToARGB4444(const uint8_t* src_y,
>                    int src_stride_y,
>-                   const uint8* src_u,
>+                   const uint8_t* src_u,
>                    int src_stride_u,
>-                   const uint8* src_v,
>+                   const uint8_t* src_v,
>                    int src_stride_v,
>-                   uint8* dst_frame,
>-                   int dst_stride_frame,
>+                   uint8_t* dst_argb4444,
>+                   int dst_stride_argb4444,
>                    int width,
>                    int height);
> 
>+// Convert I420 to AR30.
>+LIBYUV_API
>+int I420ToAR30(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
>+// Convert H420 to AR30.
>+LIBYUV_API
>+int H420ToAR30(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
> // Convert I420 to specified format.
> // "dst_sample_stride" is bytes in a row for the destination. Pass 0 if the
> //    buffer has contiguous rows. Can be negative. A multiple of 16 is optimal.
> LIBYUV_API
>-int ConvertFromI420(const uint8* y,
>+int ConvertFromI420(const uint8_t* y,
>                     int y_stride,
>-                    const uint8* u,
>+                    const uint8_t* u,
>                     int u_stride,
>-                    const uint8* v,
>+                    const uint8_t* v,
>                     int v_stride,
>-                    uint8* dst_sample,
>+                    uint8_t* dst_sample,
>                     int dst_sample_stride,
>                     int width,
>                     int height,
>-                    uint32 format);
>+                    uint32_t fourcc);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from_argb.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from_argb.h
>index 50722d761021e31aeb7fc7d38bb4f4d66a85bfda..05c815a093e8d989a369f83a888dd1aaec6768f0 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from_argb.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/convert_from_argb.h
>@@ -21,63 +21,85 @@ extern "C" {
> // Copy ARGB to ARGB.
> #define ARGBToARGB ARGBCopy
> LIBYUV_API
>-int ARGBCopy(const uint8* src_argb,
>+int ARGBCopy(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>              int width,
>              int height);
> 
> // Convert ARGB To BGRA.
> LIBYUV_API
>-int ARGBToBGRA(const uint8* src_argb,
>+int ARGBToBGRA(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_bgra,
>+               uint8_t* dst_bgra,
>                int dst_stride_bgra,
>                int width,
>                int height);
> 
> // Convert ARGB To ABGR.
> LIBYUV_API
>-int ARGBToABGR(const uint8* src_argb,
>+int ARGBToABGR(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert ARGB To RGBA.
> LIBYUV_API
>-int ARGBToRGBA(const uint8* src_argb,
>+int ARGBToRGBA(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height);
> 
>+// Aliases
>+#define ARGBToAB30 ABGRToAR30
>+#define ABGRToAB30 ARGBToAR30
>+
>+// Convert ABGR To AR30.
>+LIBYUV_API
>+int ABGRToAR30(const uint8_t* src_abgr,
>+               int src_stride_abgr,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
>+// Convert ARGB To AR30.
>+LIBYUV_API
>+int ARGBToAR30(const uint8_t* src_argb,
>+               int src_stride_argb,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height);
>+
> // Convert ARGB To RGB24.
> LIBYUV_API
>-int ARGBToRGB24(const uint8* src_argb,
>+int ARGBToRGB24(const uint8_t* src_argb,
>                 int src_stride_argb,
>-                uint8* dst_rgb24,
>+                uint8_t* dst_rgb24,
>                 int dst_stride_rgb24,
>                 int width,
>                 int height);
> 
> // Convert ARGB To RAW.
> LIBYUV_API
>-int ARGBToRAW(const uint8* src_argb,
>+int ARGBToRAW(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_rgb,
>-              int dst_stride_rgb,
>+              uint8_t* dst_raw,
>+              int dst_stride_raw,
>               int width,
>               int height);
> 
> // Convert ARGB To RGB565.
> LIBYUV_API
>-int ARGBToRGB565(const uint8* src_argb,
>+int ARGBToRGB565(const uint8_t* src_argb,
>                  int src_stride_argb,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height);
>@@ -86,173 +108,173 @@ int ARGBToRGB565(const uint8* src_argb,
> // Values in dither matrix from 0 to 7 recommended.
> // The order of the dither matrix is first byte is upper left.
> // TODO(fbarchard): Consider pointer to 2d array for dither4x4.
>-// const uint8(*dither)[4][4];
>+// const uint8_t(*dither)[4][4];
> LIBYUV_API
>-int ARGBToRGB565Dither(const uint8* src_argb,
>+int ARGBToRGB565Dither(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_rgb565,
>+                       uint8_t* dst_rgb565,
>                        int dst_stride_rgb565,
>-                       const uint8* dither4x4,
>+                       const uint8_t* dither4x4,
>                        int width,
>                        int height);
> 
> // Convert ARGB To ARGB1555.
> LIBYUV_API
>-int ARGBToARGB1555(const uint8* src_argb,
>+int ARGBToARGB1555(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb1555,
>+                   uint8_t* dst_argb1555,
>                    int dst_stride_argb1555,
>                    int width,
>                    int height);
> 
> // Convert ARGB To ARGB4444.
> LIBYUV_API
>-int ARGBToARGB4444(const uint8* src_argb,
>+int ARGBToARGB4444(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb4444,
>+                   uint8_t* dst_argb4444,
>                    int dst_stride_argb4444,
>                    int width,
>                    int height);
> 
> // Convert ARGB To I444.
> LIBYUV_API
>-int ARGBToI444(const uint8* src_argb,
>+int ARGBToI444(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert ARGB To I422.
> LIBYUV_API
>-int ARGBToI422(const uint8* src_argb,
>+int ARGBToI422(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert ARGB To I420. (also in convert.h)
> LIBYUV_API
>-int ARGBToI420(const uint8* src_argb,
>+int ARGBToI420(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert ARGB to J420. (JPeg full range I420).
> LIBYUV_API
>-int ARGBToJ420(const uint8* src_argb,
>+int ARGBToJ420(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert ARGB to J422.
> LIBYUV_API
>-int ARGBToJ422(const uint8* src_argb,
>+int ARGBToJ422(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert ARGB to J400. (JPeg full range).
> LIBYUV_API
>-int ARGBToJ400(const uint8* src_argb,
>+int ARGBToJ400(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>                int width,
>                int height);
> 
> // Convert ARGB to I400.
> LIBYUV_API
>-int ARGBToI400(const uint8* src_argb,
>+int ARGBToI400(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
> 
> // Convert ARGB to G. (Reverse of J400toARGB, which replicates G back to ARGB)
> LIBYUV_API
>-int ARGBToG(const uint8* src_argb,
>+int ARGBToG(const uint8_t* src_argb,
>             int src_stride_argb,
>-            uint8* dst_g,
>+            uint8_t* dst_g,
>             int dst_stride_g,
>             int width,
>             int height);
> 
> // Convert ARGB To NV12.
> LIBYUV_API
>-int ARGBToNV12(const uint8* src_argb,
>+int ARGBToNV12(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height);
> 
> // Convert ARGB To NV21.
> LIBYUV_API
>-int ARGBToNV21(const uint8* src_argb,
>+int ARGBToNV21(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_vu,
>+               uint8_t* dst_vu,
>                int dst_stride_vu,
>                int width,
>                int height);
> 
> // Convert ARGB To NV21.
> LIBYUV_API
>-int ARGBToNV21(const uint8* src_argb,
>+int ARGBToNV21(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_vu,
>+               uint8_t* dst_vu,
>                int dst_stride_vu,
>                int width,
>                int height);
> 
> // Convert ARGB To YUY2.
> LIBYUV_API
>-int ARGBToYUY2(const uint8* src_argb,
>+int ARGBToYUY2(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yuy2,
>+               uint8_t* dst_yuy2,
>                int dst_stride_yuy2,
>                int width,
>                int height);
> 
> // Convert ARGB To UYVY.
> LIBYUV_API
>-int ARGBToUYVY(const uint8* src_argb,
>+int ARGBToUYVY(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_uyvy,
>+               uint8_t* dst_uyvy,
>                int dst_stride_uyvy,
>                int width,
>                int height);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/cpu_id.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/cpu_id.h
>index c2e9bbbd954603030ddd22de1c7b76afc112abdb..91480c68b0133c90a0389b3d527566b595d386a8 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/cpu_id.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/cpu_id.h
>@@ -47,8 +47,7 @@ static const int kCpuHasAVX512VPOPCNTDQ = 0x100000;
> 
> // These flags are only valid on MIPS processors.
> static const int kCpuHasMIPS = 0x200000;
>-static const int kCpuHasDSPR2 = 0x400000;
>-static const int kCpuHasMSA = 0x800000;
>+static const int kCpuHasMSA = 0x400000;
> 
> // Optional init function. TestCpuFlag does an auto-init.
> // Returns cpu_info flags.
>@@ -85,7 +84,7 @@ int MaskCpuFlags(int enable_flags);
> // eax is the info type that you want.
> // ecx is typically the cpu number, and should normally be zero.
> LIBYUV_API
>-void CpuId(int eax, int ecx, int* cpu_info);
>+void CpuId(int info_eax, int info_ecx, int* cpu_info);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/macros_msa.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/macros_msa.h
>index 61be352e3af74b7e5b0020800f572635c1fee65a..921eb0714d66faf26cbcda7ec88762fff410d52f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/macros_msa.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/macros_msa.h
>@@ -16,38 +16,38 @@
> #include <stdint.h>
> 
> #if (__mips_isa_rev >= 6)
>-#define LW(psrc)                                    \
>-  ({                                                \
>-    uint8* psrc_lw_m = (uint8*)(psrc); /* NOLINT */ \
>-    uint32 val_m;                                   \
>-    asm volatile("lw  %[val_m],  %[psrc_lw_m]  \n"  \
>-                 : [val_m] "=r"(val_m)              \
>-                 : [psrc_lw_m] "m"(*psrc_lw_m));    \
>-    val_m;                                          \
>+#define LW(psrc)                                        \
>+  ({                                                    \
>+    uint8_t* psrc_lw_m = (uint8_t*)(psrc); /* NOLINT */ \
>+    uint32_t val_m;                                     \
>+    asm volatile("lw  %[val_m],  %[psrc_lw_m]  \n"      \
>+                 : [val_m] "=r"(val_m)                  \
>+                 : [psrc_lw_m] "m"(*psrc_lw_m));        \
>+    val_m;                                              \
>   })
> 
> #if (__mips == 64)
>-#define LD(psrc)                                    \
>-  ({                                                \
>-    uint8* psrc_ld_m = (uint8*)(psrc); /* NOLINT */ \
>-    uint64 val_m = 0;                               \
>-    asm volatile("ld  %[val_m],  %[psrc_ld_m]  \n"  \
>-                 : [val_m] "=r"(val_m)              \
>-                 : [psrc_ld_m] "m"(*psrc_ld_m));    \
>-    val_m;                                          \
>+#define LD(psrc)                                        \
>+  ({                                                    \
>+    uint8_t* psrc_ld_m = (uint8_t*)(psrc); /* NOLINT */ \
>+    uint64_t val_m = 0;                                 \
>+    asm volatile("ld  %[val_m],  %[psrc_ld_m]  \n"      \
>+                 : [val_m] "=r"(val_m)                  \
>+                 : [psrc_ld_m] "m"(*psrc_ld_m));        \
>+    val_m;                                              \
>   })
> #else  // !(__mips == 64)
>-#define LD(psrc)                                                       \
>-  ({                                                                   \
>-    uint8* psrc_ld_m = (uint8*)(psrc); /* NOLINT */                    \
>-    uint32 val0_m, val1_m;                                             \
>-    uint64 val_m = 0;                                                  \
>-    val0_m = LW(psrc_ld_m);                                            \
>-    val1_m = LW(psrc_ld_m + 4);                                        \
>-    val_m = (uint64)(val1_m);                             /* NOLINT */ \
>-    val_m = (uint64)((val_m << 32) & 0xFFFFFFFF00000000); /* NOLINT */ \
>-    val_m = (uint64)(val_m | (uint64)val0_m);             /* NOLINT */ \
>-    val_m;                                                             \
>+#define LD(psrc)                                                         \
>+  ({                                                                     \
>+    uint8_t* psrc_ld_m = (uint8_t*)(psrc); /* NOLINT */                  \
>+    uint32_t val0_m, val1_m;                                             \
>+    uint64_t val_m = 0;                                                  \
>+    val0_m = LW(psrc_ld_m);                                              \
>+    val1_m = LW(psrc_ld_m + 4);                                          \
>+    val_m = (uint64_t)(val1_m);                             /* NOLINT */ \
>+    val_m = (uint64_t)((val_m << 32) & 0xFFFFFFFF00000000); /* NOLINT */ \
>+    val_m = (uint64_t)(val_m | (uint64_t)val0_m);           /* NOLINT */ \
>+    val_m;                                                               \
>   })
> #endif  // (__mips == 64)
> 
>@@ -81,38 +81,38 @@
>   })
> #endif  // !(__mips == 64)
> #else   // !(__mips_isa_rev >= 6)
>-#define LW(psrc)                                    \
>-  ({                                                \
>-    uint8* psrc_lw_m = (uint8*)(psrc); /* NOLINT */ \
>-    uint32 val_m;                                   \
>-    asm volatile("ulw  %[val_m],  %[psrc_lw_m]  \n" \
>-                 : [val_m] "=r"(val_m)              \
>-                 : [psrc_lw_m] "m"(*psrc_lw_m));    \
>-    val_m;                                          \
>+#define LW(psrc)                                        \
>+  ({                                                    \
>+    uint8_t* psrc_lw_m = (uint8_t*)(psrc); /* NOLINT */ \
>+    uint32_t val_m;                                     \
>+    asm volatile("ulw  %[val_m],  %[psrc_lw_m]  \n"     \
>+                 : [val_m] "=r"(val_m)                  \
>+                 : [psrc_lw_m] "m"(*psrc_lw_m));        \
>+    val_m;                                              \
>   })
> 
> #if (__mips == 64)
>-#define LD(psrc)                                    \
>-  ({                                                \
>-    uint8* psrc_ld_m = (uint8*)(psrc); /* NOLINT */ \
>-    uint64 val_m = 0;                               \
>-    asm volatile("uld  %[val_m],  %[psrc_ld_m]  \n" \
>-                 : [val_m] "=r"(val_m)              \
>-                 : [psrc_ld_m] "m"(*psrc_ld_m));    \
>-    val_m;                                          \
>+#define LD(psrc)                                        \
>+  ({                                                    \
>+    uint8_t* psrc_ld_m = (uint8_t*)(psrc); /* NOLINT */ \
>+    uint64_t val_m = 0;                                 \
>+    asm volatile("uld  %[val_m],  %[psrc_ld_m]  \n"     \
>+                 : [val_m] "=r"(val_m)                  \
>+                 : [psrc_ld_m] "m"(*psrc_ld_m));        \
>+    val_m;                                              \
>   })
> #else  // !(__mips == 64)
>-#define LD(psrc)                                                       \
>-  ({                                                                   \
>-    uint8* psrc_ld_m = (uint8*)(psrc); /* NOLINT */                    \
>-    uint32 val0_m, val1_m;                                             \
>-    uint64 val_m = 0;                                                  \
>-    val0_m = LW(psrc_ld_m);                                            \
>-    val1_m = LW(psrc_ld_m + 4);                                        \
>-    val_m = (uint64)(val1_m);                             /* NOLINT */ \
>-    val_m = (uint64)((val_m << 32) & 0xFFFFFFFF00000000); /* NOLINT */ \
>-    val_m = (uint64)(val_m | (uint64)val0_m);             /* NOLINT */ \
>-    val_m;                                                             \
>+#define LD(psrc)                                                         \
>+  ({                                                                     \
>+    uint8_t* psrc_ld_m = (uint8_t*)(psrc); /* NOLINT */                  \
>+    uint32_t val0_m, val1_m;                                             \
>+    uint64_t val_m = 0;                                                  \
>+    val0_m = LW(psrc_ld_m);                                              \
>+    val1_m = LW(psrc_ld_m + 4);                                          \
>+    val_m = (uint64_t)(val1_m);                             /* NOLINT */ \
>+    val_m = (uint64_t)((val_m << 32) & 0xFFFFFFFF00000000); /* NOLINT */ \
>+    val_m = (uint64_t)(val_m | (uint64_t)val0_m);           /* NOLINT */ \
>+    val_m;                                                               \
>   })
> #endif  // (__mips == 64)
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/mjpeg_decoder.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/mjpeg_decoder.h
>index 8a4f282205b9618d54eb66746a420ec61bc463a1..6c12633387fad8234ddb8f0691564aaed029d7ee 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/mjpeg_decoder.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/mjpeg_decoder.h
>@@ -26,13 +26,13 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-LIBYUV_BOOL ValidateJpeg(const uint8* sample, size_t sample_size);
>+LIBYUV_BOOL ValidateJpeg(const uint8_t* sample, size_t sample_size);
> 
> #ifdef __cplusplus
> }  // extern "C"
> #endif
> 
>-static const uint32 kUnknownDataSize = 0xFFFFFFFF;
>+static const uint32_t kUnknownDataSize = 0xFFFFFFFF;
> 
> enum JpegSubsamplingType {
>   kJpegYuv420,
>@@ -43,7 +43,7 @@ enum JpegSubsamplingType {
> };
> 
> struct Buffer {
>-  const uint8* data;
>+  const uint8_t* data;
>   int len;
> };
> 
>@@ -65,7 +65,7 @@ struct SetJmpErrorMgr;
> class LIBYUV_API MJpegDecoder {
>  public:
>   typedef void (*CallbackFunction)(void* opaque,
>-                                   const uint8* const* data,
>+                                   const uint8_t* const* data,
>                                    const int* strides,
>                                    int rows);
> 
>@@ -85,7 +85,7 @@ class LIBYUV_API MJpegDecoder {
>   // If return value is LIBYUV_TRUE, then the values for all the following
>   // getters are populated.
>   // src_len is the size of the compressed mjpeg frame in bytes.
>-  LIBYUV_BOOL LoadFrame(const uint8* src, size_t src_len);
>+  LIBYUV_BOOL LoadFrame(const uint8_t* src, size_t src_len);
> 
>   // Returns width of the last loaded frame in pixels.
>   int GetWidth();
>@@ -138,7 +138,7 @@ class LIBYUV_API MJpegDecoder {
>   // at least GetComponentSize(i). The pointers in planes are incremented
>   // to point to after the end of the written data.
>   // TODO(fbarchard): Add dst_x, dst_y to allow specific rect to be decoded.
>-  LIBYUV_BOOL DecodeToBuffers(uint8** planes, int dst_width, int dst_height);
>+  LIBYUV_BOOL DecodeToBuffers(uint8_t** planes, int dst_width, int dst_height);
> 
>   // Decodes the entire image and passes the data via repeated calls to a
>   // callback function. Each call will get the data for a whole number of
>@@ -162,14 +162,14 @@ class LIBYUV_API MJpegDecoder {
>   LIBYUV_BOOL StartDecode();
>   LIBYUV_BOOL FinishDecode();
> 
>-  void SetScanlinePointers(uint8** data);
>+  void SetScanlinePointers(uint8_t** data);
>   LIBYUV_BOOL DecodeImcuRow();
> 
>   int GetComponentScanlinePadding(int component);
> 
>   // A buffer holding the input data for a frame.
>-  Buffer buf_;
>-  BufferVector buf_vec_;
>+  Buffer buf_{};
>+  BufferVector buf_vec_{};
> 
>   jpeg_decompress_struct* decompress_struct_;
>   jpeg_source_mgr* source_mgr_;
>@@ -181,12 +181,12 @@ class LIBYUV_API MJpegDecoder {
> 
>   // Temporaries used to point to scanline outputs.
>   int num_outbufs_;  // Outermost size of all arrays below.
>-  uint8*** scanlines_;
>-  int* scanlines_sizes_;
>+  uint8_t*** scanlines_{};
>+  int* scanlines_sizes_{};
>   // Temporary buffer used for decoding when we can't decode directly to the
>   // output buffers. Large enough for just one iMCU row.
>-  uint8** databuf_;
>-  int* databuf_strides_;
>+  uint8_t** databuf_{};
>+  int* databuf_strides_{};
> };
> 
> }  // namespace libyuv
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/planar_functions.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/planar_functions.h
>index c91501a9c2c3079e9a11974fc18d451159f00ce0..91137baba254eac8b7e261b53d4a4c7a6ac15085 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/planar_functions.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/planar_functions.h
>@@ -22,84 +22,120 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>+// TODO(fbarchard): Move cpu macros to row.h
>+#if defined(__pnacl__) || defined(__CLR_VER) ||            \
>+    (defined(__native_client__) && defined(__x86_64__)) || \
>+    (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
>+#define LIBYUV_DISABLE_X86
>+#endif
>+// MemorySanitizer does not support assembly code yet. http://crbug.com/344505
>+#if defined(__has_feature)
>+#if __has_feature(memory_sanitizer)
>+#define LIBYUV_DISABLE_X86
>+#endif
>+#endif
>+// The following are available on all x86 platforms:
>+#if !defined(LIBYUV_DISABLE_X86) && \
>+    (defined(_M_IX86) || defined(__x86_64__) || defined(__i386__))
>+#define HAS_ARGBAFFINEROW_SSE2
>+#endif
>+
> // Copy a plane of data.
> LIBYUV_API
>-void CopyPlane(const uint8* src_y,
>+void CopyPlane(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
> 
> LIBYUV_API
>-void CopyPlane_16(const uint16* src_y,
>+void CopyPlane_16(const uint16_t* src_y,
>                   int src_stride_y,
>-                  uint16* dst_y,
>+                  uint16_t* dst_y,
>                   int dst_stride_y,
>                   int width,
>                   int height);
> 
>+LIBYUV_API
>+void Convert16To8Plane(const uint16_t* src_y,
>+                       int src_stride_y,
>+                       uint8_t* dst_y,
>+                       int dst_stride_y,
>+                       int scale,  // 16384 for 10 bits
>+                       int width,
>+                       int height);
>+
>+LIBYUV_API
>+void Convert8To16Plane(const uint8_t* src_y,
>+                       int src_stride_y,
>+                       uint16_t* dst_y,
>+                       int dst_stride_y,
>+                       int scale,  // 1024 for 10 bits
>+                       int width,
>+                       int height);
>+
> // Set a plane of data to a 32 bit value.
> LIBYUV_API
>-void SetPlane(uint8* dst_y,
>+void SetPlane(uint8_t* dst_y,
>               int dst_stride_y,
>               int width,
>               int height,
>-              uint32 value);
>+              uint32_t value);
> 
> // Split interleaved UV plane into separate U and V planes.
> LIBYUV_API
>-void SplitUVPlane(const uint8* src_uv,
>+void SplitUVPlane(const uint8_t* src_uv,
>                   int src_stride_uv,
>-                  uint8* dst_u,
>+                  uint8_t* dst_u,
>                   int dst_stride_u,
>-                  uint8* dst_v,
>+                  uint8_t* dst_v,
>                   int dst_stride_v,
>                   int width,
>                   int height);
> 
> // Merge separate U and V planes into one interleaved UV plane.
> LIBYUV_API
>-void MergeUVPlane(const uint8* src_u,
>+void MergeUVPlane(const uint8_t* src_u,
>                   int src_stride_u,
>-                  const uint8* src_v,
>+                  const uint8_t* src_v,
>                   int src_stride_v,
>-                  uint8* dst_uv,
>+                  uint8_t* dst_uv,
>                   int dst_stride_uv,
>                   int width,
>                   int height);
> 
> // Split interleaved RGB plane into separate R, G and B planes.
> LIBYUV_API
>-void SplitRGBPlane(const uint8* src_rgb,
>+void SplitRGBPlane(const uint8_t* src_rgb,
>                    int src_stride_rgb,
>-                   uint8* dst_r,
>+                   uint8_t* dst_r,
>                    int dst_stride_r,
>-                   uint8* dst_g,
>+                   uint8_t* dst_g,
>                    int dst_stride_g,
>-                   uint8* dst_b,
>+                   uint8_t* dst_b,
>                    int dst_stride_b,
>                    int width,
>                    int height);
> 
> // Merge separate R, G and B planes into one interleaved RGB plane.
> LIBYUV_API
>-void MergeRGBPlane(const uint8* src_r,
>+void MergeRGBPlane(const uint8_t* src_r,
>                    int src_stride_r,
>-                   const uint8* src_g,
>+                   const uint8_t* src_g,
>                    int src_stride_g,
>-                   const uint8* src_b,
>+                   const uint8_t* src_b,
>                    int src_stride_b,
>-                   uint8* dst_rgb,
>+                   uint8_t* dst_rgb,
>                    int dst_stride_rgb,
>                    int width,
>                    int height);
> 
> // Copy I400.  Supports inverting.
> LIBYUV_API
>-int I400ToI400(const uint8* src_y,
>+int I400ToI400(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
>@@ -109,17 +145,17 @@ int I400ToI400(const uint8* src_y,
> // Copy I422 to I422.
> #define I422ToI422 I422Copy
> LIBYUV_API
>-int I422Copy(const uint8* src_y,
>+int I422Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height);
>@@ -127,84 +163,84 @@ int I422Copy(const uint8* src_y,
> // Copy I444 to I444.
> #define I444ToI444 I444Copy
> LIBYUV_API
>-int I444Copy(const uint8* src_y,
>+int I444Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height);
> 
> // Convert YUY2 to I422.
> LIBYUV_API
>-int YUY2ToI422(const uint8* src_yuy2,
>+int YUY2ToI422(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> // Convert UYVY to I422.
> LIBYUV_API
>-int UYVYToI422(const uint8* src_uyvy,
>+int UYVYToI422(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int YUY2ToNV12(const uint8* src_yuy2,
>+int YUY2ToNV12(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int UYVYToNV12(const uint8* src_uyvy,
>+int UYVYToNV12(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height);
> 
> LIBYUV_API
>-int YUY2ToY(const uint8* src_yuy2,
>+int YUY2ToY(const uint8_t* src_yuy2,
>             int src_stride_yuy2,
>-            uint8* dst_y,
>+            uint8_t* dst_y,
>             int dst_stride_y,
>             int width,
>             int height);
> 
> // Convert I420 to I400. (calls CopyPlane ignoring u/v).
> LIBYUV_API
>-int I420ToI400(const uint8* src_y,
>+int I420ToI400(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
>@@ -215,17 +251,17 @@ int I420ToI400(const uint8* src_y,
> 
> // I420 mirror.
> LIBYUV_API
>-int I420Mirror(const uint8* src_y,
>+int I420Mirror(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height);
>@@ -236,9 +272,9 @@ int I420Mirror(const uint8* src_y,
> // I400 mirror.  A single plane is mirrored horizontally.
> // Pass negative height to achieve 180 degree rotation.
> LIBYUV_API
>-int I400Mirror(const uint8* src_y,
>+int I400Mirror(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
>@@ -248,20 +284,20 @@ int I400Mirror(const uint8* src_y,
> 
> // ARGB mirror.
> LIBYUV_API
>-int ARGBMirror(const uint8* src_argb,
>+int ARGBMirror(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Convert NV12 to RGB565.
> LIBYUV_API
>-int NV12ToRGB565(const uint8* src_y,
>+int NV12ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_uv,
>+                 const uint8_t* src_uv,
>                  int src_stride_uv,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height);
>@@ -269,39 +305,39 @@ int NV12ToRGB565(const uint8* src_y,
> // I422ToARGB is in convert_argb.h
> // Convert I422 to BGRA.
> LIBYUV_API
>-int I422ToBGRA(const uint8* src_y,
>+int I422ToBGRA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_bgra,
>+               uint8_t* dst_bgra,
>                int dst_stride_bgra,
>                int width,
>                int height);
> 
> // Convert I422 to ABGR.
> LIBYUV_API
>-int I422ToABGR(const uint8* src_y,
>+int I422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height);
> 
> // Convert I422 to RGBA.
> LIBYUV_API
>-int I422ToRGBA(const uint8* src_y,
>+int I422ToRGBA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height);
>@@ -310,20 +346,20 @@ int I422ToRGBA(const uint8* src_y,
> #define RGB24ToRAW RAWToRGB24
> 
> LIBYUV_API
>-int RAWToRGB24(const uint8* src_raw,
>+int RAWToRGB24(const uint8_t* src_raw,
>                int src_stride_raw,
>-               uint8* dst_rgb24,
>+               uint8_t* dst_rgb24,
>                int dst_stride_rgb24,
>                int width,
>                int height);
> 
> // Draw a rectangle into I420.
> LIBYUV_API
>-int I420Rect(uint8* dst_y,
>+int I420Rect(uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int x,
>              int y,
>@@ -335,38 +371,38 @@ int I420Rect(uint8* dst_y,
> 
> // Draw a rectangle into ARGB.
> LIBYUV_API
>-int ARGBRect(uint8* dst_argb,
>+int ARGBRect(uint8_t* dst_argb,
>              int dst_stride_argb,
>-             int x,
>-             int y,
>+             int dst_x,
>+             int dst_y,
>              int width,
>              int height,
>-             uint32 value);
>+             uint32_t value);
> 
> // Convert ARGB to gray scale ARGB.
> LIBYUV_API
>-int ARGBGrayTo(const uint8* src_argb,
>+int ARGBGrayTo(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height);
> 
> // Make a rectangle of ARGB gray scale.
> LIBYUV_API
>-int ARGBGray(uint8* dst_argb,
>+int ARGBGray(uint8_t* dst_argb,
>              int dst_stride_argb,
>-             int x,
>-             int y,
>+             int dst_x,
>+             int dst_y,
>              int width,
>              int height);
> 
> // Make a rectangle of ARGB Sepia tone.
> LIBYUV_API
>-int ARGBSepia(uint8* dst_argb,
>+int ARGBSepia(uint8_t* dst_argb,
>               int dst_stride_argb,
>-              int x,
>-              int y,
>+              int dst_x,
>+              int dst_y,
>               int width,
>               int height);
> 
>@@ -377,11 +413,11 @@ int ARGBSepia(uint8* dst_argb,
> // The next 4 coefficients apply to B, G, R, A and produce R of the output.
> // The last 4 coefficients apply to B, G, R, A and produce A of the output.
> LIBYUV_API
>-int ARGBColorMatrix(const uint8* src_argb,
>+int ARGBColorMatrix(const uint8_t* src_argb,
>                     int src_stride_argb,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>-                    const int8* matrix_argb,
>+                    const int8_t* matrix_argb,
>                     int width,
>                     int height);
> 
>@@ -392,33 +428,33 @@ int ARGBColorMatrix(const uint8* src_argb,
> // The next 4 coefficients apply to B, G, R, A and produce G of the output.
> // The last 4 coefficients apply to B, G, R, A and produce R of the output.
> LIBYUV_API
>-int RGBColorMatrix(uint8* dst_argb,
>+int RGBColorMatrix(uint8_t* dst_argb,
>                    int dst_stride_argb,
>-                   const int8* matrix_rgb,
>-                   int x,
>-                   int y,
>+                   const int8_t* matrix_rgb,
>+                   int dst_x,
>+                   int dst_y,
>                    int width,
>                    int height);
> 
> // Apply a color table each ARGB pixel.
> // Table contains 256 ARGB values.
> LIBYUV_API
>-int ARGBColorTable(uint8* dst_argb,
>+int ARGBColorTable(uint8_t* dst_argb,
>                    int dst_stride_argb,
>-                   const uint8* table_argb,
>-                   int x,
>-                   int y,
>+                   const uint8_t* table_argb,
>+                   int dst_x,
>+                   int dst_y,
>                    int width,
>                    int height);
> 
> // Apply a color table each ARGB pixel but preserve destination alpha.
> // Table contains 256 ARGB values.
> LIBYUV_API
>-int RGBColorTable(uint8* dst_argb,
>+int RGBColorTable(uint8_t* dst_argb,
>                   int dst_stride_argb,
>-                  const uint8* table_argb,
>-                  int x,
>-                  int y,
>+                  const uint8_t* table_argb,
>+                  int dst_x,
>+                  int dst_y,
>                   int width,
>                   int height);
> 
>@@ -426,11 +462,11 @@ int RGBColorTable(uint8* dst_argb,
> // Table contains 32768 values indexed by [Y][C] where 7 it 7 bit luma from
> // RGB (YJ style) and C is an 8 bit color component (R, G or B).
> LIBYUV_API
>-int ARGBLumaColorTable(const uint8* src_argb,
>+int ARGBLumaColorTable(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_argb,
>+                       uint8_t* dst_argb,
>                        int dst_stride_argb,
>-                       const uint8* luma_rgb_table,
>+                       const uint8_t* luma,
>                        int width,
>                        int height);
> 
>@@ -443,9 +479,9 @@ int ARGBLumaColorTable(const uint8* src_argb,
> // A polynomial approximation can be dirived using software such as 'R'.
> 
> LIBYUV_API
>-int ARGBPolynomial(const uint8* src_argb,
>+int ARGBPolynomial(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    const float* poly,
>                    int width,
>@@ -454,68 +490,72 @@ int ARGBPolynomial(const uint8* src_argb,
> // Convert plane of 16 bit shorts to half floats.
> // Source values are multiplied by scale before storing as half float.
> LIBYUV_API
>-int HalfFloatPlane(const uint16* src_y,
>+int HalfFloatPlane(const uint16_t* src_y,
>                    int src_stride_y,
>-                   uint16* dst_y,
>+                   uint16_t* dst_y,
>                    int dst_stride_y,
>                    float scale,
>                    int width,
>                    int height);
> 
>+// Convert a buffer of bytes to floats, scale the values and store as floats.
>+LIBYUV_API
>+int ByteToFloat(const uint8_t* src_y, float* dst_y, float scale, int width);
>+
> // Quantize a rectangle of ARGB. Alpha unaffected.
> // scale is a 16 bit fractional fixed point scaler between 0 and 65535.
> // interval_size should be a value between 1 and 255.
> // interval_offset should be a value between 0 and 255.
> LIBYUV_API
>-int ARGBQuantize(uint8* dst_argb,
>+int ARGBQuantize(uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int scale,
>                  int interval_size,
>                  int interval_offset,
>-                 int x,
>-                 int y,
>+                 int dst_x,
>+                 int dst_y,
>                  int width,
>                  int height);
> 
> // Copy ARGB to ARGB.
> LIBYUV_API
>-int ARGBCopy(const uint8* src_argb,
>+int ARGBCopy(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>              int width,
>              int height);
> 
> // Copy Alpha channel of ARGB to alpha of ARGB.
> LIBYUV_API
>-int ARGBCopyAlpha(const uint8* src_argb,
>+int ARGBCopyAlpha(const uint8_t* src_argb,
>                   int src_stride_argb,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int width,
>                   int height);
> 
> // Extract the alpha channel from ARGB.
> LIBYUV_API
>-int ARGBExtractAlpha(const uint8* src_argb,
>+int ARGBExtractAlpha(const uint8_t* src_argb,
>                      int src_stride_argb,
>-                     uint8* dst_a,
>+                     uint8_t* dst_a,
>                      int dst_stride_a,
>                      int width,
>                      int height);
> 
> // Copy Y channel to Alpha of ARGB.
> LIBYUV_API
>-int ARGBCopyYToAlpha(const uint8* src_y,
>+int ARGBCopyYToAlpha(const uint8_t* src_y,
>                      int src_stride_y,
>-                     uint8* dst_argb,
>+                     uint8_t* dst_argb,
>                      int dst_stride_argb,
>                      int width,
>                      int height);
> 
>-typedef void (*ARGBBlendRow)(const uint8* src_argb0,
>-                             const uint8* src_argb1,
>-                             uint8* dst_argb,
>+typedef void (*ARGBBlendRow)(const uint8_t* src_argb0,
>+                             const uint8_t* src_argb1,
>+                             uint8_t* dst_argb,
>                              int width);
> 
> // Get function to Alpha Blend ARGB pixels and store to destination.
>@@ -526,11 +566,11 @@ ARGBBlendRow GetARGBBlend();
> // Source is pre-multiplied by alpha using ARGBAttenuate.
> // Alpha of destination is set to 255.
> LIBYUV_API
>-int ARGBBlend(const uint8* src_argb0,
>+int ARGBBlend(const uint8_t* src_argb0,
>               int src_stride_argb0,
>-              const uint8* src_argb1,
>+              const uint8_t* src_argb1,
>               int src_stride_argb1,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height);
>@@ -538,13 +578,13 @@ int ARGBBlend(const uint8* src_argb0,
> // Alpha Blend plane and store to destination.
> // Source is not pre-multiplied by alpha.
> LIBYUV_API
>-int BlendPlane(const uint8* src_y0,
>+int BlendPlane(const uint8_t* src_y0,
>                int src_stride_y0,
>-               const uint8* src_y1,
>+               const uint8_t* src_y1,
>                int src_stride_y1,
>-               const uint8* alpha,
>+               const uint8_t* alpha,
>                int alpha_stride,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height);
>@@ -553,102 +593,102 @@ int BlendPlane(const uint8* src_y0,
> // Source is not pre-multiplied by alpha.
> // Alpha is full width x height and subsampled to half size to apply to UV.
> LIBYUV_API
>-int I420Blend(const uint8* src_y0,
>+int I420Blend(const uint8_t* src_y0,
>               int src_stride_y0,
>-              const uint8* src_u0,
>+              const uint8_t* src_u0,
>               int src_stride_u0,
>-              const uint8* src_v0,
>+              const uint8_t* src_v0,
>               int src_stride_v0,
>-              const uint8* src_y1,
>+              const uint8_t* src_y1,
>               int src_stride_y1,
>-              const uint8* src_u1,
>+              const uint8_t* src_u1,
>               int src_stride_u1,
>-              const uint8* src_v1,
>+              const uint8_t* src_v1,
>               int src_stride_v1,
>-              const uint8* alpha,
>+              const uint8_t* alpha,
>               int alpha_stride,
>-              uint8* dst_y,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int width,
>               int height);
> 
> // Multiply ARGB image by ARGB image. Shifted down by 8. Saturates to 255.
> LIBYUV_API
>-int ARGBMultiply(const uint8* src_argb0,
>+int ARGBMultiply(const uint8_t* src_argb0,
>                  int src_stride_argb0,
>-                 const uint8* src_argb1,
>+                 const uint8_t* src_argb1,
>                  int src_stride_argb1,
>-                 uint8* dst_argb,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height);
> 
> // Add ARGB image with ARGB image. Saturates to 255.
> LIBYUV_API
>-int ARGBAdd(const uint8* src_argb0,
>+int ARGBAdd(const uint8_t* src_argb0,
>             int src_stride_argb0,
>-            const uint8* src_argb1,
>+            const uint8_t* src_argb1,
>             int src_stride_argb1,
>-            uint8* dst_argb,
>+            uint8_t* dst_argb,
>             int dst_stride_argb,
>             int width,
>             int height);
> 
> // Subtract ARGB image (argb1) from ARGB image (argb0). Saturates to 0.
> LIBYUV_API
>-int ARGBSubtract(const uint8* src_argb0,
>+int ARGBSubtract(const uint8_t* src_argb0,
>                  int src_stride_argb0,
>-                 const uint8* src_argb1,
>+                 const uint8_t* src_argb1,
>                  int src_stride_argb1,
>-                 uint8* dst_argb,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height);
> 
> // Convert I422 to YUY2.
> LIBYUV_API
>-int I422ToYUY2(const uint8* src_y,
>+int I422ToYUY2(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_frame,
>-               int dst_stride_frame,
>+               uint8_t* dst_yuy2,
>+               int dst_stride_yuy2,
>                int width,
>                int height);
> 
> // Convert I422 to UYVY.
> LIBYUV_API
>-int I422ToUYVY(const uint8* src_y,
>+int I422ToUYVY(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_frame,
>-               int dst_stride_frame,
>+               uint8_t* dst_uyvy,
>+               int dst_stride_uyvy,
>                int width,
>                int height);
> 
> // Convert unattentuated ARGB to preattenuated ARGB.
> LIBYUV_API
>-int ARGBAttenuate(const uint8* src_argb,
>+int ARGBAttenuate(const uint8_t* src_argb,
>                   int src_stride_argb,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int width,
>                   int height);
> 
> // Convert preattentuated ARGB to unattenuated ARGB.
> LIBYUV_API
>-int ARGBUnattenuate(const uint8* src_argb,
>+int ARGBUnattenuate(const uint8_t* src_argb,
>                     int src_stride_argb,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height);
>@@ -657,9 +697,9 @@ int ARGBUnattenuate(const uint8* src_argb,
> // Computes table of cumulative sum for image where the value is the sum
> // of all values above and to the left of the entry. Used by ARGBBlur.
> LIBYUV_API
>-int ARGBComputeCumulativeSum(const uint8* src_argb,
>+int ARGBComputeCumulativeSum(const uint8_t* src_argb,
>                              int src_stride_argb,
>-                             int32* dst_cumsum,
>+                             int32_t* dst_cumsum,
>                              int dst_stride32_cumsum,
>                              int width,
>                              int height);
>@@ -671,11 +711,11 @@ int ARGBComputeCumulativeSum(const uint8* src_argb,
> // radius is number of pixels around the center.  e.g. 1 = 3x3. 2=5x5.
> // Blur is optimized for radius of 5 (11x11) or less.
> LIBYUV_API
>-int ARGBBlur(const uint8* src_argb,
>+int ARGBBlur(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>-             int32* dst_cumsum,
>+             int32_t* dst_cumsum,
>              int dst_stride32_cumsum,
>              int width,
>              int height,
>@@ -683,24 +723,24 @@ int ARGBBlur(const uint8* src_argb,
> 
> // Multiply ARGB image by ARGB value.
> LIBYUV_API
>-int ARGBShade(const uint8* src_argb,
>+int ARGBShade(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height,
>-              uint32 value);
>+              uint32_t value);
> 
> // Interpolate between two images using specified amount of interpolation
> // (0 to 255) and store to destination.
> // 'interpolation' is specified as 8 bit fraction where 0 means 100% src0
> // and 255 means 1% src0 and 99% src1.
> LIBYUV_API
>-int InterpolatePlane(const uint8* src0,
>+int InterpolatePlane(const uint8_t* src0,
>                      int src_stride0,
>-                     const uint8* src1,
>+                     const uint8_t* src1,
>                      int src_stride1,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_stride,
>                      int width,
>                      int height,
>@@ -709,11 +749,11 @@ int InterpolatePlane(const uint8* src0,
> // Interpolate between two ARGB images using specified amount of interpolation
> // Internally calls InterpolatePlane with width * 4 (bpp).
> LIBYUV_API
>-int ARGBInterpolate(const uint8* src_argb0,
>+int ARGBInterpolate(const uint8_t* src_argb0,
>                     int src_stride_argb0,
>-                    const uint8* src_argb1,
>+                    const uint8_t* src_argb1,
>                     int src_stride_argb1,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height,
>@@ -723,93 +763,78 @@ int ARGBInterpolate(const uint8* src_argb0,
> // Internally calls InterpolatePlane on each plane where the U and V planes
> // are half width and half height.
> LIBYUV_API
>-int I420Interpolate(const uint8* src0_y,
>+int I420Interpolate(const uint8_t* src0_y,
>                     int src0_stride_y,
>-                    const uint8* src0_u,
>+                    const uint8_t* src0_u,
>                     int src0_stride_u,
>-                    const uint8* src0_v,
>+                    const uint8_t* src0_v,
>                     int src0_stride_v,
>-                    const uint8* src1_y,
>+                    const uint8_t* src1_y,
>                     int src1_stride_y,
>-                    const uint8* src1_u,
>+                    const uint8_t* src1_u,
>                     int src1_stride_u,
>-                    const uint8* src1_v,
>+                    const uint8_t* src1_v,
>                     int src1_stride_v,
>-                    uint8* dst_y,
>+                    uint8_t* dst_y,
>                     int dst_stride_y,
>-                    uint8* dst_u,
>+                    uint8_t* dst_u,
>                     int dst_stride_u,
>-                    uint8* dst_v,
>+                    uint8_t* dst_v,
>                     int dst_stride_v,
>                     int width,
>                     int height,
>                     int interpolation);
> 
>-#if defined(__pnacl__) || defined(__CLR_VER) || \
>-    (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
>-#define LIBYUV_DISABLE_X86
>-#endif
>-// MemorySanitizer does not support assembly code yet. http://crbug.com/344505
>-#if defined(__has_feature)
>-#if __has_feature(memory_sanitizer)
>-#define LIBYUV_DISABLE_X86
>-#endif
>-#endif
>-// The following are available on all x86 platforms:
>-#if !defined(LIBYUV_DISABLE_X86) && \
>-    (defined(_M_IX86) || defined(__x86_64__) || defined(__i386__))
>-#define HAS_ARGBAFFINEROW_SSE2
>-#endif
>-
> // Row function for copying pixels from a source with a slope to a row
> // of destination. Useful for scaling, rotation, mirror, texture mapping.
> LIBYUV_API
>-void ARGBAffineRow_C(const uint8* src_argb,
>+void ARGBAffineRow_C(const uint8_t* src_argb,
>                      int src_argb_stride,
>-                     uint8* dst_argb,
>+                     uint8_t* dst_argb,
>                      const float* uv_dudv,
>                      int width);
>+// TODO(fbarchard): Move ARGBAffineRow_SSE2 to row.h
> LIBYUV_API
>-void ARGBAffineRow_SSE2(const uint8* src_argb,
>+void ARGBAffineRow_SSE2(const uint8_t* src_argb,
>                         int src_argb_stride,
>-                        uint8* dst_argb,
>+                        uint8_t* dst_argb,
>                         const float* uv_dudv,
>                         int width);
> 
> // Shuffle ARGB channel order.  e.g. BGRA to ARGB.
> // shuffler is 16 bytes and must be aligned.
> LIBYUV_API
>-int ARGBShuffle(const uint8* src_bgra,
>+int ARGBShuffle(const uint8_t* src_bgra,
>                 int src_stride_bgra,
>-                uint8* dst_argb,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>-                const uint8* shuffler,
>+                const uint8_t* shuffler,
>                 int width,
>                 int height);
> 
> // Sobel ARGB effect with planar output.
> LIBYUV_API
>-int ARGBSobelToPlane(const uint8* src_argb,
>+int ARGBSobelToPlane(const uint8_t* src_argb,
>                      int src_stride_argb,
>-                     uint8* dst_y,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>                      int width,
>                      int height);
> 
> // Sobel ARGB effect.
> LIBYUV_API
>-int ARGBSobel(const uint8* src_argb,
>+int ARGBSobel(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height);
> 
> // Sobel ARGB effect w/ Sobel X, Sobel, Sobel Y in ARGB.
> LIBYUV_API
>-int ARGBSobelXY(const uint8* src_argb,
>+int ARGBSobelXY(const uint8_t* src_argb,
>                 int src_stride_argb,
>-                uint8* dst_argb,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>                 int width,
>                 int height);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate.h
>index b9f7154a51d776ea67351e0dcbb613548c27091e..76b692be8b0b5feaf65801fce04cd49349f41b98 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate.h
>@@ -33,79 +33,79 @@ typedef enum RotationMode {
> 
> // Rotate I420 frame.
> LIBYUV_API
>-int I420Rotate(const uint8* src_y,
>+int I420Rotate(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>-               int src_width,
>-               int src_height,
>+               int width,
>+               int height,
>                enum RotationMode mode);
> 
> // Rotate NV12 input and store in I420.
> LIBYUV_API
>-int NV12ToI420Rotate(const uint8* src_y,
>+int NV12ToI420Rotate(const uint8_t* src_y,
>                      int src_stride_y,
>-                     const uint8* src_uv,
>+                     const uint8_t* src_uv,
>                      int src_stride_uv,
>-                     uint8* dst_y,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>-                     uint8* dst_u,
>+                     uint8_t* dst_u,
>                      int dst_stride_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_v,
>                      int dst_stride_v,
>-                     int src_width,
>-                     int src_height,
>+                     int width,
>+                     int height,
>                      enum RotationMode mode);
> 
> // Rotate a plane by 0, 90, 180, or 270.
> LIBYUV_API
>-int RotatePlane(const uint8* src,
>+int RotatePlane(const uint8_t* src,
>                 int src_stride,
>-                uint8* dst,
>+                uint8_t* dst,
>                 int dst_stride,
>-                int src_width,
>-                int src_height,
>+                int width,
>+                int height,
>                 enum RotationMode mode);
> 
> // Rotate planes by 90, 180, 270. Deprecated.
> LIBYUV_API
>-void RotatePlane90(const uint8* src,
>+void RotatePlane90(const uint8_t* src,
>                    int src_stride,
>-                   uint8* dst,
>+                   uint8_t* dst,
>                    int dst_stride,
>                    int width,
>                    int height);
> 
> LIBYUV_API
>-void RotatePlane180(const uint8* src,
>+void RotatePlane180(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height);
> 
> LIBYUV_API
>-void RotatePlane270(const uint8* src,
>+void RotatePlane270(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height);
> 
> LIBYUV_API
>-void RotateUV90(const uint8* src,
>+void RotateUV90(const uint8_t* src,
>                 int src_stride,
>-                uint8* dst_a,
>+                uint8_t* dst_a,
>                 int dst_stride_a,
>-                uint8* dst_b,
>+                uint8_t* dst_b,
>                 int dst_stride_b,
>                 int width,
>                 int height);
>@@ -115,21 +115,21 @@ void RotateUV90(const uint8* src,
> // split the data into two buffers while
> // rotating them. Deprecated.
> LIBYUV_API
>-void RotateUV180(const uint8* src,
>+void RotateUV180(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height);
> 
> LIBYUV_API
>-void RotateUV270(const uint8* src,
>+void RotateUV270(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height);
>@@ -139,19 +139,19 @@ void RotateUV270(const uint8* src,
> // order will result in a rotation by +- 90 degrees.
> // Deprecated.
> LIBYUV_API
>-void TransposePlane(const uint8* src,
>+void TransposePlane(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height);
> 
> LIBYUV_API
>-void TransposeUV(const uint8* src,
>+void TransposeUV(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_argb.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_argb.h
>index be0190c178784c365474347401acd875caa7b652..20432949ab42af56b803cb7ef6ee1c5914cb7434 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_argb.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_argb.h
>@@ -21,9 +21,9 @@ extern "C" {
> 
> // Rotate ARGB frame
> LIBYUV_API
>-int ARGBRotate(const uint8* src_argb,
>+int ARGBRotate(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int src_width,
>                int src_height,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_row.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_row.h
>index 973fc15284ff32033cdf00270ab0fa6cc92a3b80..5edc0fcf13a1b632fb4a2ca127567e5de031cacb 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_row.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/rotate_row.h
>@@ -18,10 +18,14 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-#if defined(__pnacl__) || defined(__CLR_VER) || \
>+#if defined(__pnacl__) || defined(__CLR_VER) ||            \
>+    (defined(__native_client__) && defined(__x86_64__)) || \
>     (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
> #define LIBYUV_DISABLE_X86
> #endif
>+#if defined(__native_client__)
>+#define LIBYUV_DISABLE_NEON
>+#endif
> // MemorySanitizer does not support assembly code yet. http://crbug.com/344505
> #if defined(__has_feature)
> #if __has_feature(memory_sanitizer)
>@@ -34,189 +38,151 @@ extern "C" {
> #define HAS_TRANSPOSEUVWX8_SSE2
> #endif
> 
>-// The following are available for GCC 32 or 64 bit but not NaCL for 64 bit:
>-#if !defined(LIBYUV_DISABLE_X86) && \
>-    (defined(__i386__) ||           \
>-     (defined(__x86_64__) && !defined(__native_client__)))
>+// The following are available for GCC 32 or 64 bit:
>+#if !defined(LIBYUV_DISABLE_X86) && (defined(__i386__) || defined(__x86_64__))
> #define HAS_TRANSPOSEWX8_SSSE3
> #endif
> 
>-// The following are available for 64 bit GCC but not NaCL:
>-#if !defined(LIBYUV_DISABLE_X86) && !defined(__native_client__) && \
>-    defined(__x86_64__)
>+// The following are available for 64 bit GCC:
>+#if !defined(LIBYUV_DISABLE_X86) && defined(__x86_64__)
> #define HAS_TRANSPOSEWX8_FAST_SSSE3
> #define HAS_TRANSPOSEUVWX8_SSE2
> #endif
> 
>-#if !defined(LIBYUV_DISABLE_NEON) && !defined(__native_client__) && \
>+#if !defined(LIBYUV_DISABLE_NEON) && \
>     (defined(__ARM_NEON__) || defined(LIBYUV_NEON) || defined(__aarch64__))
> #define HAS_TRANSPOSEWX8_NEON
> #define HAS_TRANSPOSEUVWX8_NEON
> #endif
> 
>-#if !defined(LIBYUV_DISABLE_DSPR2) && !defined(__native_client__) && \
>-    defined(__mips__) && defined(__mips_dsp) && (__mips_dsp_rev >= 2)
>-#define HAS_TRANSPOSEWX8_DSPR2
>-#define HAS_TRANSPOSEUVWX8_DSPR2
>-#endif  // defined(__mips__)
>-
> #if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
> #define HAS_TRANSPOSEWX16_MSA
> #define HAS_TRANSPOSEUVWX16_MSA
> #endif
> 
>-void TransposeWxH_C(const uint8* src,
>+void TransposeWxH_C(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height);
> 
>-void TransposeWx8_C(const uint8* src,
>+void TransposeWx8_C(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width);
>-void TransposeWx16_C(const uint8* src,
>+void TransposeWx16_C(const uint8_t* src,
>                      int src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_stride,
>                      int width);
>-void TransposeWx8_NEON(const uint8* src,
>+void TransposeWx8_NEON(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width);
>-void TransposeWx8_SSSE3(const uint8* src,
>+void TransposeWx8_SSSE3(const uint8_t* src,
>                         int src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_stride,
>                         int width);
>-void TransposeWx8_Fast_SSSE3(const uint8* src,
>+void TransposeWx8_Fast_SSSE3(const uint8_t* src,
>                              int src_stride,
>-                             uint8* dst,
>+                             uint8_t* dst,
>                              int dst_stride,
>                              int width);
>-void TransposeWx8_DSPR2(const uint8* src,
>-                        int src_stride,
>-                        uint8* dst,
>-                        int dst_stride,
>-                        int width);
>-void TransposeWx8_Fast_DSPR2(const uint8* src,
>-                             int src_stride,
>-                             uint8* dst,
>-                             int dst_stride,
>-                             int width);
>-void TransposeWx16_MSA(const uint8* src,
>+void TransposeWx16_MSA(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width);
> 
>-void TransposeWx8_Any_NEON(const uint8* src,
>+void TransposeWx8_Any_NEON(const uint8_t* src,
>                            int src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_stride,
>                            int width);
>-void TransposeWx8_Any_SSSE3(const uint8* src,
>+void TransposeWx8_Any_SSSE3(const uint8_t* src,
>                             int src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_stride,
>                             int width);
>-void TransposeWx8_Fast_Any_SSSE3(const uint8* src,
>+void TransposeWx8_Fast_Any_SSSE3(const uint8_t* src,
>                                  int src_stride,
>-                                 uint8* dst,
>+                                 uint8_t* dst,
>                                  int dst_stride,
>                                  int width);
>-void TransposeWx8_Any_DSPR2(const uint8* src,
>-                            int src_stride,
>-                            uint8* dst,
>-                            int dst_stride,
>-                            int width);
>-void TransposeWx16_Any_MSA(const uint8* src,
>+void TransposeWx16_Any_MSA(const uint8_t* src,
>                            int src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_stride,
>                            int width);
> 
>-void TransposeUVWxH_C(const uint8* src,
>+void TransposeUVWxH_C(const uint8_t* src,
>                       int src_stride,
>-                      uint8* dst_a,
>+                      uint8_t* dst_a,
>                       int dst_stride_a,
>-                      uint8* dst_b,
>+                      uint8_t* dst_b,
>                       int dst_stride_b,
>                       int width,
>                       int height);
> 
>-void TransposeUVWx8_C(const uint8* src,
>+void TransposeUVWx8_C(const uint8_t* src,
>                       int src_stride,
>-                      uint8* dst_a,
>+                      uint8_t* dst_a,
>                       int dst_stride_a,
>-                      uint8* dst_b,
>+                      uint8_t* dst_b,
>                       int dst_stride_b,
>                       int width);
>-void TransposeUVWx16_C(const uint8* src,
>+void TransposeUVWx16_C(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst_a,
>+                       uint8_t* dst_a,
>                        int dst_stride_a,
>-                       uint8* dst_b,
>+                       uint8_t* dst_b,
>                        int dst_stride_b,
>                        int width);
>-void TransposeUVWx8_SSE2(const uint8* src,
>+void TransposeUVWx8_SSE2(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width);
>-void TransposeUVWx8_NEON(const uint8* src,
>+void TransposeUVWx8_NEON(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width);
>-void TransposeUVWx8_DSPR2(const uint8* src,
>-                          int src_stride,
>-                          uint8* dst_a,
>-                          int dst_stride_a,
>-                          uint8* dst_b,
>-                          int dst_stride_b,
>-                          int width);
>-void TransposeUVWx16_MSA(const uint8* src,
>+void TransposeUVWx16_MSA(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width);
> 
>-void TransposeUVWx8_Any_SSE2(const uint8* src,
>+void TransposeUVWx8_Any_SSE2(const uint8_t* src,
>                              int src_stride,
>-                             uint8* dst_a,
>+                             uint8_t* dst_a,
>                              int dst_stride_a,
>-                             uint8* dst_b,
>+                             uint8_t* dst_b,
>                              int dst_stride_b,
>                              int width);
>-void TransposeUVWx8_Any_NEON(const uint8* src,
>+void TransposeUVWx8_Any_NEON(const uint8_t* src,
>                              int src_stride,
>-                             uint8* dst_a,
>+                             uint8_t* dst_a,
>                              int dst_stride_a,
>-                             uint8* dst_b,
>+                             uint8_t* dst_b,
>                              int dst_stride_b,
>                              int width);
>-void TransposeUVWx8_Any_DSPR2(const uint8* src,
>-                              int src_stride,
>-                              uint8* dst_a,
>-                              int dst_stride_a,
>-                              uint8* dst_b,
>-                              int dst_stride_b,
>-                              int width);
>-void TransposeUVWx16_Any_MSA(const uint8* src,
>+void TransposeUVWx16_Any_MSA(const uint8_t* src,
>                              int src_stride,
>-                             uint8* dst_a,
>+                             uint8_t* dst_a,
>                              int dst_stride_a,
>-                             uint8* dst_b,
>+                             uint8_t* dst_b,
>                              int dst_stride_b,
>                              int width);
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/row.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/row.h
>index 34d727641a84178011d5bbc3640898ab290e3349..b5a42d0e62cfcf5c43fe753e78c92e669442cec0 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/row.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/row.h
>@@ -20,34 +20,20 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-#define IS_ALIGNED(p, a) (!((uintptr_t)(p) & ((a)-1)))
>-
>-#define align_buffer_64(var, size)                                       \
>-  uint8* var##_mem = (uint8*)(malloc((size) + 63));         /* NOLINT */ \
>-  uint8* var = (uint8*)(((intptr_t)(var##_mem) + 63) & ~63) /* NOLINT */
>-
>-#define free_aligned_buffer_64(var) \
>-  free(var##_mem);                  \
>-  var = 0
>-
>-#if defined(__pnacl__) || defined(__CLR_VER) || \
>+#if defined(__pnacl__) || defined(__CLR_VER) ||            \
>+    (defined(__native_client__) && defined(__x86_64__)) || \
>     (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
> #define LIBYUV_DISABLE_X86
> #endif
>+#if defined(__native_client__)
>+#define LIBYUV_DISABLE_NEON
>+#endif
> // MemorySanitizer does not support assembly code yet. http://crbug.com/344505
> #if defined(__has_feature)
> #if __has_feature(memory_sanitizer)
> #define LIBYUV_DISABLE_X86
> #endif
> #endif
>-// True if compiling for SSSE3 as a requirement.
>-#if defined(__SSSE3__) || (defined(_M_IX86_FP) && (_M_IX86_FP >= 3))
>-#define LIBYUV_SSSE3_ONLY
>-#endif
>-
>-#if defined(__native_client__)
>-#define LIBYUV_DISABLE_NEON
>-#endif
> // clang >= 3.5.0 required for Arm64.
> #if defined(__clang__) && defined(__aarch64__) && !defined(LIBYUV_DISABLE_NEON)
> #if (__clang_major__ < 3) || (__clang_major__ == 3 && (__clang_minor__ < 5))
>@@ -85,7 +71,6 @@ extern "C" {
> #define HAS_ARGB4444TOARGBROW_SSE2
> #define HAS_ARGBEXTRACTALPHAROW_SSE2
> #define HAS_ARGBSETROW_X86
>-#define HAS_ARGBSHUFFLEROW_SSE2
> #define HAS_ARGBSHUFFLEROW_SSSE3
> #define HAS_ARGBTOARGB1555ROW_SSE2
> #define HAS_ARGBTOARGB4444ROW_SSE2
>@@ -184,7 +169,6 @@ extern "C" {
> 
> // The following are available on all x86 platforms, but
> // require VS2012, clang 3.4 or gcc 4.7.
>-// The code supports NaCL but requires a new compiler and validator.
> #if !defined(LIBYUV_DISABLE_X86) &&                          \
>     (defined(VISUALC_HAS_AVX2) || defined(CLANG_HAS_AVX2) || \
>      defined(GCC_HAS_AVX2))
>@@ -268,6 +252,14 @@ extern "C" {
> // TODO(fbarchard): Port to Visual C
> #if !defined(LIBYUV_DISABLE_X86) && \
>     (defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER)))
>+#define HAS_ABGRTOAR30ROW_SSSE3
>+#define HAS_ARGBTOAR30ROW_SSSE3
>+#define HAS_CONVERT16TO8ROW_SSSE3
>+#define HAS_CONVERT8TO16ROW_SSE2
>+// I210 is for H010.  2 = 422.  I for 601 vs H for 709.
>+#define HAS_I210TOAR30ROW_SSSE3
>+#define HAS_I210TOARGBROW_SSSE3
>+#define HAS_I422TOAR30ROW_SSSE3
> #define HAS_MERGERGBROW_SSSE3
> #define HAS_SPLITRGBROW_SSSE3
> #endif
>@@ -277,6 +269,15 @@ extern "C" {
> #if !defined(LIBYUV_DISABLE_X86) &&                                       \
>     (defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER))) && \
>     (defined(CLANG_HAS_AVX2) || defined(GCC_HAS_AVX2))
>+#define HAS_ABGRTOAR30ROW_AVX2
>+#define HAS_ARGBTOAR30ROW_AVX2
>+#define HAS_CONVERT16TO8ROW_AVX2
>+#define HAS_CONVERT8TO16ROW_AVX2
>+#define HAS_I210TOARGBROW_AVX2
>+#define HAS_I210TOAR30ROW_AVX2
>+#define HAS_I422TOAR30ROW_AVX2
>+#define HAS_I422TOUYVYROW_AVX2
>+#define HAS_I422TOYUY2ROW_AVX2
> #define HAS_MERGEUVROW_16_AVX2
> #define HAS_MULTIPLYROW_16_AVX2
> #endif
>@@ -307,6 +308,7 @@ extern "C" {
> #define HAS_ARGBTOYROW_NEON
> #define HAS_BGRATOUVROW_NEON
> #define HAS_BGRATOYROW_NEON
>+#define HAS_BYTETOFLOATROW_NEON
> #define HAS_COPYROW_NEON
> #define HAS_HALFFLOATROW_NEON
> #define HAS_I400TOARGBROW_NEON
>@@ -325,8 +327,10 @@ extern "C" {
> #define HAS_MIRRORROW_NEON
> #define HAS_MIRRORUVROW_NEON
> #define HAS_NV12TOARGBROW_NEON
>+#define HAS_NV12TORGB24ROW_NEON
> #define HAS_NV12TORGB565ROW_NEON
> #define HAS_NV21TOARGBROW_NEON
>+#define HAS_NV21TORGB24ROW_NEON
> #define HAS_RAWTOARGBROW_NEON
> #define HAS_RAWTORGB24ROW_NEON
> #define HAS_RAWTOUVROW_NEON
>@@ -376,37 +380,6 @@ extern "C" {
> #if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
> #define HAS_SCALESUMSAMPLES_NEON
> #endif
>-
>-// The following are available on Mips platforms:
>-#if !defined(LIBYUV_DISABLE_DSPR2) && defined(__mips__) && \
>-    (_MIPS_SIM == _MIPS_SIM_ABI32) && (__mips_isa_rev < 6)
>-#define HAS_COPYROW_MIPS
>-#if defined(__mips_dsp) && (__mips_dsp_rev >= 2)
>-#define HAS_I422TOARGBROW_DSPR2
>-#define HAS_INTERPOLATEROW_DSPR2
>-#define HAS_MIRRORROW_DSPR2
>-#define HAS_MIRRORUVROW_DSPR2
>-#define HAS_SPLITUVROW_DSPR2
>-#define HAS_RGB24TOARGBROW_DSPR2
>-#define HAS_RAWTOARGBROW_DSPR2
>-#define HAS_RGB565TOARGBROW_DSPR2
>-#define HAS_ARGB1555TOARGBROW_DSPR2
>-#define HAS_ARGB4444TOARGBROW_DSPR2
>-#define HAS_I444TOARGBROW_DSPR2
>-#define HAS_I422TOARGB4444ROW_DSPR2
>-#define HAS_I422TOARGB1555ROW_DSPR2
>-#define HAS_NV12TOARGBROW_DSPR2
>-#define HAS_BGRATOUVROW_DSPR2
>-#define HAS_BGRATOYROW_DSPR2
>-#define HAS_ABGRTOUVROW_DSPR2
>-#define HAS_ARGBTOYROW_DSPR2
>-#define HAS_ABGRTOYROW_DSPR2
>-#define HAS_RGBATOUVROW_DSPR2
>-#define HAS_RGBATOYROW_DSPR2
>-#define HAS_ARGBTOUVROW_DSPR2
>-#endif
>-#endif
>-
> #if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
> #define HAS_ABGRTOUVROW_MSA
> #define HAS_ABGRTOYROW_MSA
>@@ -492,18 +465,18 @@ extern "C" {
> #else
> #define SIMD_ALIGNED(var) __declspec(align(16)) var
> #endif
>-typedef __declspec(align(16)) int16 vec16[8];
>-typedef __declspec(align(16)) int32 vec32[4];
>-typedef __declspec(align(16)) int8 vec8[16];
>-typedef __declspec(align(16)) uint16 uvec16[8];
>-typedef __declspec(align(16)) uint32 uvec32[4];
>-typedef __declspec(align(16)) uint8 uvec8[16];
>-typedef __declspec(align(32)) int16 lvec16[16];
>-typedef __declspec(align(32)) int32 lvec32[8];
>-typedef __declspec(align(32)) int8 lvec8[32];
>-typedef __declspec(align(32)) uint16 ulvec16[16];
>-typedef __declspec(align(32)) uint32 ulvec32[8];
>-typedef __declspec(align(32)) uint8 ulvec8[32];
>+typedef __declspec(align(16)) int16_t vec16[8];
>+typedef __declspec(align(16)) int32_t vec32[4];
>+typedef __declspec(align(16)) int8_t vec8[16];
>+typedef __declspec(align(16)) uint16_t uvec16[8];
>+typedef __declspec(align(16)) uint32_t uvec32[4];
>+typedef __declspec(align(16)) uint8_t uvec8[16];
>+typedef __declspec(align(32)) int16_t lvec16[16];
>+typedef __declspec(align(32)) int32_t lvec32[8];
>+typedef __declspec(align(32)) int8_t lvec8[32];
>+typedef __declspec(align(32)) uint16_t ulvec16[16];
>+typedef __declspec(align(32)) uint32_t ulvec32[8];
>+typedef __declspec(align(32)) uint8_t ulvec8[32];
> #elif !defined(__pnacl__) && (defined(__GNUC__) || defined(__clang__))
> // Caveat GCC 4.2 to 4.7 have a known issue using vectors with const.
> #if defined(CLANG_HAS_AVX2) || defined(GCC_HAS_AVX2)
>@@ -511,32 +484,32 @@ typedef __declspec(align(32)) uint8 ulvec8[32];
> #else
> #define SIMD_ALIGNED(var) var __attribute__((aligned(16)))
> #endif
>-typedef int16 __attribute__((vector_size(16))) vec16;
>-typedef int32 __attribute__((vector_size(16))) vec32;
>-typedef int8 __attribute__((vector_size(16))) vec8;
>-typedef uint16 __attribute__((vector_size(16))) uvec16;
>-typedef uint32 __attribute__((vector_size(16))) uvec32;
>-typedef uint8 __attribute__((vector_size(16))) uvec8;
>-typedef int16 __attribute__((vector_size(32))) lvec16;
>-typedef int32 __attribute__((vector_size(32))) lvec32;
>-typedef int8 __attribute__((vector_size(32))) lvec8;
>-typedef uint16 __attribute__((vector_size(32))) ulvec16;
>-typedef uint32 __attribute__((vector_size(32))) ulvec32;
>-typedef uint8 __attribute__((vector_size(32))) ulvec8;
>+typedef int16_t __attribute__((vector_size(16))) vec16;
>+typedef int32_t __attribute__((vector_size(16))) vec32;
>+typedef int8_t __attribute__((vector_size(16))) vec8;
>+typedef uint16_t __attribute__((vector_size(16))) uvec16;
>+typedef uint32_t __attribute__((vector_size(16))) uvec32;
>+typedef uint8_t __attribute__((vector_size(16))) uvec8;
>+typedef int16_t __attribute__((vector_size(32))) lvec16;
>+typedef int32_t __attribute__((vector_size(32))) lvec32;
>+typedef int8_t __attribute__((vector_size(32))) lvec8;
>+typedef uint16_t __attribute__((vector_size(32))) ulvec16;
>+typedef uint32_t __attribute__((vector_size(32))) ulvec32;
>+typedef uint8_t __attribute__((vector_size(32))) ulvec8;
> #else
> #define SIMD_ALIGNED(var) var
>-typedef int16 vec16[8];
>-typedef int32 vec32[4];
>-typedef int8 vec8[16];
>-typedef uint16 uvec16[8];
>-typedef uint32 uvec32[4];
>-typedef uint8 uvec8[16];
>-typedef int16 lvec16[16];
>-typedef int32 lvec32[8];
>-typedef int8 lvec8[32];
>-typedef uint16 ulvec16[16];
>-typedef uint32 ulvec32[8];
>-typedef uint8 ulvec8[32];
>+typedef int16_t vec16[8];
>+typedef int32_t vec32[4];
>+typedef int8_t vec8[16];
>+typedef uint16_t uvec16[8];
>+typedef uint32_t uvec32[4];
>+typedef uint8_t uvec8[16];
>+typedef int16_t lvec16[16];
>+typedef int32_t lvec32[8];
>+typedef int8_t lvec8[32];
>+typedef uint16_t ulvec16[16];
>+typedef uint32_t ulvec32[8];
>+typedef uint8_t ulvec8[32];
> #endif
> 
> #if defined(__aarch64__)
>@@ -560,13 +533,13 @@ struct YuvConstants {
> #else
> // This struct is for Intel color conversion.
> struct YuvConstants {
>-  int8 kUVToB[32];
>-  int8 kUVToG[32];
>-  int8 kUVToR[32];
>-  int16 kUVBiasB[16];
>-  int16 kUVBiasG[16];
>-  int16 kUVBiasR[16];
>-  int16 kYToRgb[16];
>+  int8_t kUVToB[32];
>+  int8_t kUVToG[32];
>+  int8_t kUVToR[32];
>+  int16_t kUVBiasB[16];
>+  int16_t kUVBiasG[16];
>+  int16_t kUVBiasR[16];
>+  int16_t kYToRgb[16];
> };
> 
> // Offsets into YuvConstants structure
>@@ -589,6 +562,16 @@ extern const struct YuvConstants SIMD_ALIGNED(kYvuI601Constants);  // BT.601
> extern const struct YuvConstants SIMD_ALIGNED(kYvuJPEGConstants);  // JPeg
> extern const struct YuvConstants SIMD_ALIGNED(kYvuH709Constants);  // BT.709
> 
>+#define IS_ALIGNED(p, a) (!((uintptr_t)(p) & ((a)-1)))
>+
>+#define align_buffer_64(var, size)                                           \
>+  uint8_t* var##_mem = (uint8_t*)(malloc((size) + 63));         /* NOLINT */ \
>+  uint8_t* var = (uint8_t*)(((intptr_t)(var##_mem) + 63) & ~63) /* NOLINT */
>+
>+#define free_aligned_buffer_64(var) \
>+  free(var##_mem);                  \
>+  var = 0
>+
> #if defined(__APPLE__) || defined(__x86_64__) || defined(__llvm__)
> #define OMITFP
> #else
>@@ -601,62 +584,6 @@ extern const struct YuvConstants SIMD_ALIGNED(kYvuH709Constants);  // BT.709
> #else
> #define LABELALIGN
> #endif
>-#if defined(__native_client__) && defined(__x86_64__)
>-// r14 is used for MEMOP macros.
>-#define NACL_R14 "r14",
>-#define BUNDLELOCK ".bundle_lock\n"
>-#define BUNDLEUNLOCK ".bundle_unlock\n"
>-#define MEMACCESS(base) "%%nacl:(%%r15,%q" #base ")"
>-#define MEMACCESS2(offset, base) "%%nacl:" #offset "(%%r15,%q" #base ")"
>-#define MEMLEA(offset, base) #offset "(%q" #base ")"
>-#define MEMLEA3(offset, index, scale) #offset "(,%q" #index "," #scale ")"
>-#define MEMLEA4(offset, base, index, scale) \
>-  #offset "(%q" #base ",%q" #index "," #scale ")"
>-#define MEMMOVESTRING(s, d) "%%nacl:(%q" #s "),%%nacl:(%q" #d "), %%r15"
>-#define MEMSTORESTRING(reg, d) "%%" #reg ",%%nacl:(%q" #d "), %%r15"
>-#define MEMOPREG(opcode, offset, base, index, scale, reg)                 \
>-  BUNDLELOCK                                                              \
>-  "lea " #offset "(%q" #base ",%q" #index "," #scale "),%%r14d\n" #opcode \
>-  " (%%r15,%%r14),%%" #reg "\n" BUNDLEUNLOCK
>-#define MEMOPMEM(opcode, reg, offset, base, index, scale)                 \
>-  BUNDLELOCK                                                              \
>-  "lea " #offset "(%q" #base ",%q" #index "," #scale "),%%r14d\n" #opcode \
>-  " %%" #reg ",(%%r15,%%r14)\n" BUNDLEUNLOCK
>-#define MEMOPARG(opcode, offset, base, index, scale, arg)                 \
>-  BUNDLELOCK                                                              \
>-  "lea " #offset "(%q" #base ",%q" #index "," #scale "),%%r14d\n" #opcode \
>-  " (%%r15,%%r14),%" #arg "\n" BUNDLEUNLOCK
>-#define VMEMOPREG(opcode, offset, base, index, scale, reg1, reg2)         \
>-  BUNDLELOCK                                                              \
>-  "lea " #offset "(%q" #base ",%q" #index "," #scale "),%%r14d\n" #opcode \
>-  " (%%r15,%%r14),%%" #reg1 ",%%" #reg2 "\n" BUNDLEUNLOCK
>-#define VEXTOPMEM(op, sel, reg, offset, base, index, scale)           \
>-  BUNDLELOCK                                                          \
>-  "lea " #offset "(%q" #base ",%q" #index "," #scale "),%%r14d\n" #op \
>-  " $" #sel ",%%" #reg ",(%%r15,%%r14)\n" BUNDLEUNLOCK
>-#else  // defined(__native_client__) && defined(__x86_64__)
>-#define NACL_R14
>-#define BUNDLEALIGN
>-#define MEMACCESS(base) "(%" #base ")"
>-#define MEMACCESS2(offset, base) #offset "(%" #base ")"
>-#define MEMLEA(offset, base) #offset "(%" #base ")"
>-#define MEMLEA3(offset, index, scale) #offset "(,%" #index "," #scale ")"
>-#define MEMLEA4(offset, base, index, scale) \
>-  #offset "(%" #base ",%" #index "," #scale ")"
>-#define MEMMOVESTRING(s, d)
>-#define MEMSTORESTRING(reg, d)
>-#define MEMOPREG(opcode, offset, base, index, scale, reg) \
>-  #opcode " " #offset "(%" #base ",%" #index "," #scale "),%%" #reg "\n"
>-#define MEMOPMEM(opcode, reg, offset, base, index, scale) \
>-  #opcode " %%" #reg "," #offset "(%" #base ",%" #index "," #scale ")\n"
>-#define MEMOPARG(opcode, offset, base, index, scale, arg) \
>-  #opcode " " #offset "(%" #base ",%" #index "," #scale "),%" #arg "\n"
>-#define VMEMOPREG(opcode, offset, base, index, scale, reg1, reg2)    \
>-  #opcode " " #offset "(%" #base ",%" #index "," #scale "),%%" #reg1 \
>-          ",%%" #reg2 "\n"
>-#define VEXTOPMEM(op, sel, reg, offset, base, index, scale) \
>-  #op " $" #sel ",%%" #reg "," #offset "(%" #base ",%" #index "," #scale ")\n"
>-#endif  // defined(__native_client__) && defined(__x86_64__)
> 
> // Intel Code Analizer markers.  Insert IACA_START IACA_END around code to be
> // measured and then run with iaca -64 libyuv_unittest.
>@@ -709,2583 +636,2743 @@ extern const struct YuvConstants SIMD_ALIGNED(kYvuH709Constants);  // BT.709
>     IACA_UD_BYTES      \
>   }
> 
>-void I444ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I444ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422AlphaToARGBRow_NEON(const uint8* y_buf,
>-                             const uint8* u_buf,
>-                             const uint8* v_buf,
>-                             const uint8* a_buf,
>-                             uint8* dst_argb,
>+void I422AlphaToARGBRow_NEON(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             const uint8_t* src_a,
>+                             uint8_t* dst_argb,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToRGBARow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_rgba,
>+void I422ToRGBARow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_rgba,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToRGB24Row_NEON(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb24,
>+void I422ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb24,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_rgb565,
>+void I422ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void I422ToARGB1555Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb1555,
>+void I422ToARGB1555Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb1555,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToARGB4444Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb4444,
>+void I422ToARGB4444Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb4444,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void NV12ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_uv,
>-                        uint8* dst_argb,
>+void NV12ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_uv,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void NV12ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_uv,
>-                          uint8* dst_rgb565,
>+void NV12ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_uv,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void NV21ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_vu,
>-                        uint8* dst_argb,
>+void NV21ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_vu,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
>-                        uint8* dst_argb,
>+void NV12ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_uv,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width);
>+void NV21ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_vu,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width);
>+void YUY2ToARGBRow_NEON(const uint8_t* src_yuy2,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void UYVYToARGBRow_NEON(const uint8* src_uyvy,
>-                        uint8* dst_argb,
>+void UYVYToARGBRow_NEON(const uint8_t* src_uyvy,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I444ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_argb,
>+void I444ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void I444ToARGBRow_DSPR2(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>-                         const struct YuvConstants* yuvconstants,
>-                         int width);
>-void I422ToARGB4444Row_DSPR2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb4444,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void I422ToARGB1555Row_DSPR2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb1555,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void NV12ToARGBRow_DSPR2(const uint8* src_y,
>-                         const uint8* src_uv,
>-                         uint8* dst_argb,
>-                         const struct YuvConstants* yuvconstants,
>-                         int width);
> 
>-void I422ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_argb,
>+void I422ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void I422ToRGBARow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_rgba,
>+void I422ToRGBARow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void I422AlphaToARGBRow_MSA(const uint8* y_buf,
>-                            const uint8* u_buf,
>-                            const uint8* v_buf,
>-                            const uint8* a_buf,
>-                            uint8* dst_argb,
>+void I422AlphaToARGBRow_MSA(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            const uint8_t* src_a,
>+                            uint8_t* dst_argb,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGB24Row_MSA(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_rgb24,
>+void I422ToRGB24Row_MSA(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToRGB565Row_MSA(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb565,
>+void I422ToRGB565Row_MSA(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb565,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToARGB4444Row_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb4444,
>+void I422ToARGB4444Row_MSA(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_argb4444,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void I422ToARGB1555Row_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb1555,
>+void I422ToARGB1555Row_MSA(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_argb1555,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void NV12ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_uv,
>-                       uint8* dst_argb,
>+void NV12ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_uv,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void NV12ToRGB565Row_MSA(const uint8* src_y,
>-                         const uint8* src_uv,
>-                         uint8* dst_rgb565,
>+void NV12ToRGB565Row_MSA(const uint8_t* src_y,
>+                         const uint8_t* src_uv,
>+                         uint8_t* dst_rgb565,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void NV21ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_vu,
>-                       uint8* dst_argb,
>+void NV21ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_vu,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void YUY2ToARGBRow_MSA(const uint8* src_yuy2,
>-                       uint8* dst_argb,
>+void YUY2ToARGBRow_MSA(const uint8_t* src_yuy2,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void UYVYToARGBRow_MSA(const uint8* src_uyvy,
>-                       uint8* dst_argb,
>+void UYVYToARGBRow_MSA(const uint8_t* src_uyvy,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
> 
>-void ARGBToYRow_AVX2(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYRow_Any_AVX2(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_AVX2(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_Any_AVX2(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_SSSE3(const uint8* src_argb, uint8* dst_y, int width);
>-void BGRAToYRow_SSSE3(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_SSSE3(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_SSSE3(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_SSSE3(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_SSSE3(const uint8* src_raw, uint8* dst_y, int width);
>-void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYRow_MSA(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_MSA(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToUV444Row_NEON(const uint8* src_argb,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void ARGBToUVRow_NEON(const uint8* src_argb,
>+void ARGBToYRow_AVX2(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void ARGBToYRow_Any_AVX2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void ARGBToYJRow_AVX2(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void ARGBToYJRow_Any_AVX2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYJRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void BGRAToYRow_SSSE3(const uint8_t* src_bgra, uint8_t* dst_y, int width);
>+void ABGRToYRow_SSSE3(const uint8_t* src_abgr, uint8_t* dst_y, int width);
>+void RGBAToYRow_SSSE3(const uint8_t* src_rgba, uint8_t* dst_y, int width);
>+void RGB24ToYRow_SSSE3(const uint8_t* src_rgb24, uint8_t* dst_y, int width);
>+void RAWToYRow_SSSE3(const uint8_t* src_raw, uint8_t* dst_y, int width);
>+void ARGBToYRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void ARGBToYJRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width);
>+void ARGBToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void ARGBToYJRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void ARGBToUV444Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void ARGBToUVRow_NEON(const uint8_t* src_argb,
>                       int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void ARGBToUV444Row_MSA(const uint8* src_argb,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void ARGBToUV444Row_MSA(const uint8_t* src_argb,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
>-void ARGBToUVRow_MSA(const uint8* src_argb,
>+void ARGBToUVRow_MSA(const uint8_t* src_argb0,
>                      int src_stride_argb,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void ARGBToUVJRow_NEON(const uint8* src_argb,
>+void ARGBToUVJRow_NEON(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void BGRAToUVRow_NEON(const uint8* src_bgra,
>+void BGRAToUVRow_NEON(const uint8_t* src_bgra,
>                       int src_stride_bgra,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void ABGRToUVRow_NEON(const uint8* src_abgr,
>+void ABGRToUVRow_NEON(const uint8_t* src_abgr,
>                       int src_stride_abgr,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void RGBAToUVRow_NEON(const uint8* src_rgba,
>+void RGBAToUVRow_NEON(const uint8_t* src_rgba,
>                       int src_stride_rgba,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void RGB24ToUVRow_NEON(const uint8* src_rgb24,
>+void RGB24ToUVRow_NEON(const uint8_t* src_rgb24,
>                        int src_stride_rgb24,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void RAWToUVRow_NEON(const uint8* src_raw,
>+void RAWToUVRow_NEON(const uint8_t* src_raw,
>                      int src_stride_raw,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void RGB565ToUVRow_NEON(const uint8* src_rgb565,
>+void RGB565ToUVRow_NEON(const uint8_t* src_rgb565,
>                         int src_stride_rgb565,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
>-void ARGB1555ToUVRow_NEON(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_NEON(const uint8_t* src_argb1555,
>                           int src_stride_argb1555,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ARGB4444ToUVRow_NEON(const uint8* src_argb4444,
>+void ARGB4444ToUVRow_NEON(const uint8_t* src_argb4444,
>                           int src_stride_argb4444,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ARGBToUVJRow_MSA(const uint8* src_argb,
>-                      int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void ARGBToUVJRow_MSA(const uint8_t* src_rgb0,
>+                      int src_stride_rgb,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void BGRAToUVRow_MSA(const uint8* src_bgra,
>-                     int src_stride_bgra,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void BGRAToUVRow_MSA(const uint8_t* src_rgb0,
>+                     int src_stride_rgb,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void ABGRToUVRow_MSA(const uint8* src_abgr,
>-                     int src_stride_abgr,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void ABGRToUVRow_MSA(const uint8_t* src_rgb0,
>+                     int src_stride_rgb,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void RGBAToUVRow_MSA(const uint8* src_rgba,
>-                     int src_stride_rgba,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void RGBAToUVRow_MSA(const uint8_t* src_rgb0,
>+                     int src_stride_rgb,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void RGB24ToUVRow_MSA(const uint8* src_rgb24,
>-                      int src_stride_rgb24,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void RGB24ToUVRow_MSA(const uint8_t* src_rgb0,
>+                      int src_stride_rgb,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void RAWToUVRow_MSA(const uint8* src_raw,
>-                    int src_stride_raw,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+void RAWToUVRow_MSA(const uint8_t* src_rgb0,
>+                    int src_stride_rgb,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width);
>-void RGB565ToUVRow_MSA(const uint8* src_rgb565,
>+void RGB565ToUVRow_MSA(const uint8_t* src_rgb565,
>                        int src_stride_rgb565,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ARGB1555ToUVRow_MSA(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_MSA(const uint8_t* src_argb1555,
>                          int src_stride_argb1555,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width);
>-void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width);
>-void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width);
>-void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width);
>-void BGRAToYRow_MSA(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_MSA(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_MSA(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_MSA(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_MSA(const uint8* src_raw, uint8* dst_y, int width);
>-void RGB565ToYRow_MSA(const uint8* src_rgb565, uint8* dst_y, int width);
>-void ARGB1555ToYRow_MSA(const uint8* src_argb1555, uint8* dst_y, int width);
>-void BGRAToUVRow_DSPR2(const uint8* src_bgra,
>-                       int src_stride_bgra,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>-                       int width);
>-void BGRAToYRow_DSPR2(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToUVRow_DSPR2(const uint8* src_abgr,
>-                       int src_stride_abgr,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>-                       int width);
>-void ARGBToYRow_DSPR2(const uint8* src_argb, uint8* dst_y, int width);
>-void ABGRToYRow_DSPR2(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToUVRow_DSPR2(const uint8* src_rgba,
>-                       int src_stride_rgba,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>-                       int width);
>-void RGBAToYRow_DSPR2(const uint8* src_rgba, uint8* dst_y, int width);
>-void ARGBToUVRow_DSPR2(const uint8* src_argb,
>-                       int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>-                       int width);
>-void ARGBToYRow_C(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_C(const uint8* src_argb, uint8* dst_y, int width);
>-void BGRAToYRow_C(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_C(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_C(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_C(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_C(const uint8* src_raw, uint8* dst_y, int width);
>-void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width);
>-void ARGB1555ToYRow_C(const uint8* src_argb1555, uint8* dst_y, int width);
>-void ARGB4444ToYRow_C(const uint8* src_argb4444, uint8* dst_y, int width);
>-void ARGBToYRow_Any_SSSE3(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_Any_SSSE3(const uint8* src_argb, uint8* dst_y, int width);
>-void BGRAToYRow_Any_SSSE3(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_Any_SSSE3(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_Any_SSSE3(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_Any_SSSE3(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_Any_SSSE3(const uint8* src_raw, uint8* dst_y, int width);
>-void ARGBToYRow_Any_NEON(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYJRow_Any_NEON(const uint8* src_argb, uint8* dst_y, int width);
>-void BGRAToYRow_Any_NEON(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_Any_NEON(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_Any_NEON(const uint8* src_rgba, uint8* dst_y, int width);
>-void RGB24ToYRow_Any_NEON(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_Any_NEON(const uint8* src_raw, uint8* dst_y, int width);
>-void RGB565ToYRow_Any_NEON(const uint8* src_rgb565, uint8* dst_y, int width);
>-void ARGB1555ToYRow_Any_NEON(const uint8* src_argb1555,
>-                             uint8* dst_y,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void BGRAToYRow_NEON(const uint8_t* src_bgra, uint8_t* dst_y, int width);
>+void ABGRToYRow_NEON(const uint8_t* src_abgr, uint8_t* dst_y, int width);
>+void RGBAToYRow_NEON(const uint8_t* src_rgba, uint8_t* dst_y, int width);
>+void RGB24ToYRow_NEON(const uint8_t* src_rgb24, uint8_t* dst_y, int width);
>+void RAWToYRow_NEON(const uint8_t* src_raw, uint8_t* dst_y, int width);
>+void RGB565ToYRow_NEON(const uint8_t* src_rgb565, uint8_t* dst_y, int width);
>+void ARGB1555ToYRow_NEON(const uint8_t* src_argb1555,
>+                         uint8_t* dst_y,
>+                         int width);
>+void ARGB4444ToYRow_NEON(const uint8_t* src_argb4444,
>+                         uint8_t* dst_y,
>+                         int width);
>+void BGRAToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void ABGRToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGBAToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGB24ToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RAWToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGB565ToYRow_MSA(const uint8_t* src_rgb565, uint8_t* dst_y, int width);
>+void ARGB1555ToYRow_MSA(const uint8_t* src_argb1555, uint8_t* dst_y, int width);
>+void ARGBToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void ARGBToYJRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void BGRAToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void ABGRToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGBAToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGB24ToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RAWToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width);
>+void RGB565ToYRow_C(const uint8_t* src_rgb565, uint8_t* dst_y, int width);
>+void ARGB1555ToYRow_C(const uint8_t* src_argb1555, uint8_t* dst_y, int width);
>+void ARGB4444ToYRow_C(const uint8_t* src_argb4444, uint8_t* dst_y, int width);
>+void ARGBToYRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYJRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void BGRAToYRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ABGRToYRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGBAToYRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB24ToYRow_Any_SSSE3(const uint8_t* src_rgb24, uint8_t* dst_y, int width);
>+void RAWToYRow_Any_SSSE3(const uint8_t* src_raw, uint8_t* dst_y, int width);
>+void ARGBToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYJRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void BGRAToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ABGRToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGBAToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB24ToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RAWToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB565ToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGB1555ToYRow_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void BGRAToYRow_Any_DSPR2(const uint8* src_bgra, uint8* dst_y, int width);
>-void ARGBToYRow_Any_DSPR2(const uint8* src_argb, uint8* dst_y, int width);
>-void ABGRToYRow_Any_DSPR2(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_Any_DSPR2(const uint8* src_rgba, uint8* dst_y, int width);
>-void ARGB4444ToYRow_Any_NEON(const uint8* src_argb4444,
>-                             uint8* dst_y,
>+void ARGB4444ToYRow_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void BGRAToYRow_Any_MSA(const uint8* src_bgra, uint8* dst_y, int width);
>-void ABGRToYRow_Any_MSA(const uint8* src_abgr, uint8* dst_y, int width);
>-void RGBAToYRow_Any_MSA(const uint8* src_rgba, uint8* dst_y, int width);
>-void ARGBToYJRow_Any_MSA(const uint8* src_argb, uint8* dst_y, int width);
>-void ARGBToYRow_Any_MSA(const uint8* src_argb, uint8* dst_y, int width);
>-void RGB24ToYRow_Any_MSA(const uint8* src_rgb24, uint8* dst_y, int width);
>-void RAWToYRow_Any_MSA(const uint8* src_raw, uint8* dst_y, int width);
>-void RGB565ToYRow_Any_MSA(const uint8* src_rgb565, uint8* dst_y, int width);
>-void ARGB1555ToYRow_Any_MSA(const uint8* src_argb1555, uint8* dst_y, int width);
>-
>-void ARGBToUVRow_AVX2(const uint8* src_argb,
>+void BGRAToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ABGRToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGBAToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYJRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB24ToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RAWToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB565ToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGB1555ToYRow_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+
>+void ARGBToUVRow_AVX2(const uint8_t* src_argb0,
>                       int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void ARGBToUVJRow_AVX2(const uint8* src_argb,
>+void ARGBToUVJRow_AVX2(const uint8_t* src_argb0,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ARGBToUVRow_SSSE3(const uint8* src_argb,
>+void ARGBToUVRow_SSSE3(const uint8_t* src_argb0,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ARGBToUVJRow_SSSE3(const uint8* src_argb,
>+void ARGBToUVJRow_SSSE3(const uint8_t* src_argb0,
>                         int src_stride_argb,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
>-void BGRAToUVRow_SSSE3(const uint8* src_bgra,
>+void BGRAToUVRow_SSSE3(const uint8_t* src_bgra0,
>                        int src_stride_bgra,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ABGRToUVRow_SSSE3(const uint8* src_abgr,
>+void ABGRToUVRow_SSSE3(const uint8_t* src_abgr0,
>                        int src_stride_abgr,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void RGBAToUVRow_SSSE3(const uint8* src_rgba,
>+void RGBAToUVRow_SSSE3(const uint8_t* src_rgba0,
>                        int src_stride_rgba,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ARGBToUVRow_Any_AVX2(const uint8* src_argb,
>-                          int src_stride_argb,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ARGBToUVRow_Any_AVX2(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ARGBToUVJRow_Any_AVX2(const uint8* src_argb,
>-                           int src_stride_argb,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void ARGBToUVJRow_Any_AVX2(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void ARGBToUVRow_Any_SSSE3(const uint8* src_argb,
>-                           int src_stride_argb,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void ARGBToUVRow_Any_SSSE3(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void ARGBToUVJRow_Any_SSSE3(const uint8* src_argb,
>-                            int src_stride_argb,
>-                            uint8* dst_u,
>-                            uint8* dst_v,
>-                            int width);
>-void BGRAToUVRow_Any_SSSE3(const uint8* src_bgra,
>-                           int src_stride_bgra,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void ARGBToUVJRow_Any_SSSE3(const uint8_t* src_ptr,
>+                            int src_stride_ptr,
>+                            uint8_t* dst_u,
>+                            uint8_t* dst_v,
>+                            int width);
>+void BGRAToUVRow_Any_SSSE3(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void ABGRToUVRow_Any_SSSE3(const uint8* src_abgr,
>-                           int src_stride_abgr,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void ABGRToUVRow_Any_SSSE3(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void RGBAToUVRow_Any_SSSE3(const uint8* src_rgba,
>-                           int src_stride_rgba,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void RGBAToUVRow_Any_SSSE3(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void ARGBToUV444Row_Any_NEON(const uint8* src_argb,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void ARGBToUV444Row_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void ARGBToUVRow_Any_NEON(const uint8* src_argb,
>-                          int src_stride_argb,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ARGBToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ARGBToUV444Row_Any_MSA(const uint8* src_argb,
>-                            uint8* dst_u,
>-                            uint8* dst_v,
>-                            int width);
>-void ARGBToUVRow_Any_MSA(const uint8* src_argb,
>-                         int src_stride_argb,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void ARGBToUVJRow_Any_NEON(const uint8* src_argb,
>-                           int src_stride_argb,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void ARGBToUV444Row_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_u,
>+                            uint8_t* dst_v,
>+                            int width);
>+void ARGBToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void ARGBToUVJRow_Any_NEON(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void BGRAToUVRow_Any_NEON(const uint8* src_bgra,
>-                          int src_stride_bgra,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void BGRAToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ABGRToUVRow_Any_NEON(const uint8* src_abgr,
>-                          int src_stride_abgr,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ABGRToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void RGBAToUVRow_Any_NEON(const uint8* src_rgba,
>-                          int src_stride_rgba,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void RGBAToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void RGB24ToUVRow_Any_NEON(const uint8* src_rgb24,
>-                           int src_stride_rgb24,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void RGB24ToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void RAWToUVRow_Any_NEON(const uint8* src_raw,
>-                         int src_stride_raw,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void RGB565ToUVRow_Any_NEON(const uint8* src_rgb565,
>-                            int src_stride_rgb565,
>-                            uint8* dst_u,
>-                            uint8* dst_v,
>-                            int width);
>-void ARGB1555ToUVRow_Any_NEON(const uint8* src_argb1555,
>-                              int src_stride_argb1555,
>-                              uint8* dst_u,
>-                              uint8* dst_v,
>+void RAWToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void RGB565ToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                            int src_stride_ptr,
>+                            uint8_t* dst_u,
>+                            uint8_t* dst_v,
>+                            int width);
>+void ARGB1555ToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                              int src_stride_ptr,
>+                              uint8_t* dst_u,
>+                              uint8_t* dst_v,
>                               int width);
>-void ARGB4444ToUVRow_Any_NEON(const uint8* src_argb4444,
>-                              int src_stride_argb4444,
>-                              uint8* dst_u,
>-                              uint8* dst_v,
>+void ARGB4444ToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                              int src_stride_ptr,
>+                              uint8_t* dst_u,
>+                              uint8_t* dst_v,
>                               int width);
>-void ARGBToUVJRow_Any_MSA(const uint8* src_argb,
>-                          int src_stride_argb,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ARGBToUVJRow_Any_MSA(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void BGRAToUVRow_Any_MSA(const uint8* src_bgra,
>-                         int src_stride_bgra,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void ABGRToUVRow_Any_MSA(const uint8* src_abgr,
>-                         int src_stride_abgr,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void RGBAToUVRow_Any_MSA(const uint8* src_rgba,
>-                         int src_stride_rgba,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void RGB24ToUVRow_Any_MSA(const uint8* src_rgb24,
>-                          int src_stride_rgb24,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void BGRAToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void ABGRToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void RGBAToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void RGB24ToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void RAWToUVRow_Any_MSA(const uint8* src_raw,
>-                        int src_stride_raw,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void RAWToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                        int src_stride_ptr,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
>-void RGB565ToUVRow_Any_MSA(const uint8* src_rgb565,
>-                           int src_stride_rgb565,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>+void RGB565ToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                           int src_stride_ptr,
>+                           uint8_t* dst_u,
>+                           uint8_t* dst_v,
>                            int width);
>-void ARGB1555ToUVRow_Any_MSA(const uint8* src_argb1555,
>-                             int src_stride_argb1555,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void ARGB1555ToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                             int src_stride_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void BGRAToUVRow_Any_DSPR2(const uint8* src_bgra,
>-                           int src_stride_bgra,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>-                           int width);
>-void ABGRToUVRow_Any_DSPR2(const uint8* src_abgr,
>-                           int src_stride_abgr,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>-                           int width);
>-void RGBAToUVRow_Any_DSPR2(const uint8* src_rgba,
>-                           int src_stride_rgba,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>-                           int width);
>-void ARGBToUVRow_Any_DSPR2(const uint8* src_argb,
>-                           int src_stride_argb,
>-                           uint8* dst_u,
>-                           uint8* dst_v,
>-                           int width);
>-void ARGBToUVRow_C(const uint8* src_argb,
>-                   int src_stride_argb,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void ARGBToUVRow_C(const uint8_t* src_rgb0,
>+                   int src_stride_rgb,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void ARGBToUVJRow_C(const uint8* src_argb,
>-                    int src_stride_argb,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+void ARGBToUVJRow_C(const uint8_t* src_rgb0,
>+                    int src_stride_rgb,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width);
>-void ARGBToUVRow_C(const uint8* src_argb,
>-                   int src_stride_argb,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void ARGBToUVRow_C(const uint8_t* src_rgb0,
>+                   int src_stride_rgb,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void ARGBToUVJRow_C(const uint8* src_argb,
>-                    int src_stride_argb,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+void ARGBToUVJRow_C(const uint8_t* src_rgb0,
>+                    int src_stride_rgb,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width);
>-void BGRAToUVRow_C(const uint8* src_bgra,
>-                   int src_stride_bgra,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void BGRAToUVRow_C(const uint8_t* src_rgb0,
>+                   int src_stride_rgb,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void ABGRToUVRow_C(const uint8* src_abgr,
>-                   int src_stride_abgr,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void ABGRToUVRow_C(const uint8_t* src_rgb0,
>+                   int src_stride_rgb,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void RGBAToUVRow_C(const uint8* src_rgba,
>-                   int src_stride_rgba,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void RGBAToUVRow_C(const uint8_t* src_rgb0,
>+                   int src_stride_rgb,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void RGB24ToUVRow_C(const uint8* src_rgb24,
>-                    int src_stride_rgb24,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+void RGB24ToUVRow_C(const uint8_t* src_rgb0,
>+                    int src_stride_rgb,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width);
>-void RAWToUVRow_C(const uint8* src_raw,
>-                  int src_stride_raw,
>-                  uint8* dst_u,
>-                  uint8* dst_v,
>+void RAWToUVRow_C(const uint8_t* src_rgb0,
>+                  int src_stride_rgb,
>+                  uint8_t* dst_u,
>+                  uint8_t* dst_v,
>                   int width);
>-void RGB565ToUVRow_C(const uint8* src_rgb565,
>+void RGB565ToUVRow_C(const uint8_t* src_rgb565,
>                      int src_stride_rgb565,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void ARGB1555ToUVRow_C(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_C(const uint8_t* src_argb1555,
>                        int src_stride_argb1555,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void ARGB4444ToUVRow_C(const uint8* src_argb4444,
>+void ARGB4444ToUVRow_C(const uint8_t* src_argb4444,
>                        int src_stride_argb4444,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
> 
>-void ARGBToUV444Row_SSSE3(const uint8* src_argb,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ARGBToUV444Row_SSSE3(const uint8_t* src_argb,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void ARGBToUV444Row_Any_SSSE3(const uint8* src_argb,
>-                              uint8* dst_u,
>-                              uint8* dst_v,
>+void ARGBToUV444Row_Any_SSSE3(const uint8_t* src_ptr,
>+                              uint8_t* dst_u,
>+                              uint8_t* dst_v,
>                               int width);
> 
>-void ARGBToUV444Row_C(const uint8* src_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void ARGBToUV444Row_C(const uint8_t* src_argb,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
> 
>-void MirrorRow_AVX2(const uint8* src, uint8* dst, int width);
>-void MirrorRow_SSSE3(const uint8* src, uint8* dst, int width);
>-void MirrorRow_NEON(const uint8* src, uint8* dst, int width);
>-void MirrorRow_DSPR2(const uint8* src, uint8* dst, int width);
>-void MirrorRow_MSA(const uint8* src, uint8* dst, int width);
>-void MirrorRow_C(const uint8* src, uint8* dst, int width);
>-void MirrorRow_Any_AVX2(const uint8* src, uint8* dst, int width);
>-void MirrorRow_Any_SSSE3(const uint8* src, uint8* dst, int width);
>-void MirrorRow_Any_SSE2(const uint8* src, uint8* dst, int width);
>-void MirrorRow_Any_NEON(const uint8* src, uint8* dst, int width);
>-void MirrorRow_Any_MSA(const uint8* src, uint8* dst, int width);
>-
>-void MirrorUVRow_SSSE3(const uint8* src_uv,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+void MirrorRow_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_SSSE3(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_MSA(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_C(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_Any_AVX2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void MirrorRow_Any_SSSE3(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void MirrorRow_Any_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void MirrorRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void MirrorRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+
>+void MirrorUVRow_SSSE3(const uint8_t* src,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width);
>-void MirrorUVRow_NEON(const uint8* src_uv,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void MirrorUVRow_NEON(const uint8_t* src_uv,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void MirrorUVRow_DSPR2(const uint8* src_uv,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>-                       int width);
>-void MirrorUVRow_MSA(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void MirrorUVRow_MSA(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void MirrorUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width);
>-
>-void ARGBMirrorRow_AVX2(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_SSE2(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_MSA(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_C(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_Any_AVX2(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_Any_SSE2(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_Any_NEON(const uint8* src, uint8* dst, int width);
>-void ARGBMirrorRow_Any_MSA(const uint8* src, uint8* dst, int width);
>-
>-void SplitUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width);
>-void SplitUVRow_SSE2(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void MirrorUVRow_C(const uint8_t* src_uv,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>+                   int width);
>+
>+void ARGBMirrorRow_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBMirrorRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBMirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBMirrorRow_MSA(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBMirrorRow_C(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBMirrorRow_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBMirrorRow_Any_SSE2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBMirrorRow_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBMirrorRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+
>+void SplitUVRow_C(const uint8_t* src_uv,
>+                  uint8_t* dst_u,
>+                  uint8_t* dst_v,
>+                  int width);
>+void SplitUVRow_SSE2(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void SplitUVRow_AVX2(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_AVX2(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void SplitUVRow_NEON(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_NEON(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void SplitUVRow_DSPR2(const uint8* src_uv,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>-                      int width);
>-void SplitUVRow_MSA(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width);
>-void SplitUVRow_Any_SSE2(const uint8* src_uv,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void SplitUVRow_Any_AVX2(const uint8* src_uv,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void SplitUVRow_Any_NEON(const uint8* src_uv,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void SplitUVRow_Any_DSPR2(const uint8* src_uv,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>-                          int width);
>-void SplitUVRow_Any_MSA(const uint8* src_uv,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void SplitUVRow_MSA(const uint8_t* src_uv,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>+                    int width);
>+void SplitUVRow_Any_SSE2(const uint8_t* src_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void SplitUVRow_Any_AVX2(const uint8_t* src_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void SplitUVRow_Any_NEON(const uint8_t* src_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void SplitUVRow_Any_MSA(const uint8_t* src_ptr,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
> 
>-void MergeUVRow_C(const uint8* src_u,
>-                  const uint8* src_v,
>-                  uint8* dst_uv,
>+void MergeUVRow_C(const uint8_t* src_u,
>+                  const uint8_t* src_v,
>+                  uint8_t* dst_uv,
>                   int width);
>-void MergeUVRow_SSE2(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_SSE2(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width);
>-void MergeUVRow_AVX2(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_AVX2(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width);
>-void MergeUVRow_NEON(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_NEON(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width);
>-void MergeUVRow_MSA(const uint8* src_u,
>-                    const uint8* src_v,
>-                    uint8* dst_uv,
>+void MergeUVRow_MSA(const uint8_t* src_u,
>+                    const uint8_t* src_v,
>+                    uint8_t* dst_uv,
>                     int width);
>-void MergeUVRow_Any_SSE2(const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_uv,
>+void MergeUVRow_Any_SSE2(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void MergeUVRow_Any_AVX2(const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_uv,
>+void MergeUVRow_Any_AVX2(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void MergeUVRow_Any_NEON(const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_uv,
>+void MergeUVRow_Any_NEON(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void MergeUVRow_Any_MSA(const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_uv,
>+void MergeUVRow_Any_MSA(const uint8_t* y_buf,
>+                        const uint8_t* uv_buf,
>+                        uint8_t* dst_ptr,
>                         int width);
> 
>-void SplitRGBRow_C(const uint8* src_rgb,
>-                   uint8* dst_r,
>-                   uint8* dst_g,
>-                   uint8* dst_b,
>+void SplitRGBRow_C(const uint8_t* src_rgb,
>+                   uint8_t* dst_r,
>+                   uint8_t* dst_g,
>+                   uint8_t* dst_b,
>                    int width);
>-void SplitRGBRow_SSSE3(const uint8* src_rgb,
>-                       uint8* dst_r,
>-                       uint8* dst_g,
>-                       uint8* dst_b,
>+void SplitRGBRow_SSSE3(const uint8_t* src_rgb,
>+                       uint8_t* dst_r,
>+                       uint8_t* dst_g,
>+                       uint8_t* dst_b,
>                        int width);
>-void SplitRGBRow_NEON(const uint8* src_rgb,
>-                      uint8* dst_r,
>-                      uint8* dst_g,
>-                      uint8* dst_b,
>+void SplitRGBRow_NEON(const uint8_t* src_rgb,
>+                      uint8_t* dst_r,
>+                      uint8_t* dst_g,
>+                      uint8_t* dst_b,
>                       int width);
>-void SplitRGBRow_Any_SSSE3(const uint8* src_rgb,
>-                           uint8* dst_r,
>-                           uint8* dst_g,
>-                           uint8* dst_b,
>+void SplitRGBRow_Any_SSSE3(const uint8_t* src_ptr,
>+                           uint8_t* dst_r,
>+                           uint8_t* dst_g,
>+                           uint8_t* dst_b,
>                            int width);
>-void SplitRGBRow_Any_NEON(const uint8* src_rgb,
>-                          uint8* dst_r,
>-                          uint8* dst_g,
>-                          uint8* dst_b,
>+void SplitRGBRow_Any_NEON(const uint8_t* src_ptr,
>+                          uint8_t* dst_r,
>+                          uint8_t* dst_g,
>+                          uint8_t* dst_b,
>                           int width);
> 
>-void MergeRGBRow_C(const uint8* src_r,
>-                   const uint8* src_g,
>-                   const uint8* src_b,
>-                   uint8* dst_rgb,
>+void MergeRGBRow_C(const uint8_t* src_r,
>+                   const uint8_t* src_g,
>+                   const uint8_t* src_b,
>+                   uint8_t* dst_rgb,
>                    int width);
>-void MergeRGBRow_SSSE3(const uint8* src_r,
>-                       const uint8* src_g,
>-                       const uint8* src_b,
>-                       uint8* dst_rgb,
>+void MergeRGBRow_SSSE3(const uint8_t* src_r,
>+                       const uint8_t* src_g,
>+                       const uint8_t* src_b,
>+                       uint8_t* dst_rgb,
>                        int width);
>-void MergeRGBRow_NEON(const uint8* src_r,
>-                      const uint8* src_g,
>-                      const uint8* src_b,
>-                      uint8* dst_rgb,
>+void MergeRGBRow_NEON(const uint8_t* src_r,
>+                      const uint8_t* src_g,
>+                      const uint8_t* src_b,
>+                      uint8_t* dst_rgb,
>                       int width);
>-void MergeRGBRow_Any_SSSE3(const uint8* src_r,
>-                           const uint8* src_g,
>-                           const uint8* src_b,
>-                           uint8* dst_rgb,
>+void MergeRGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            int width);
>-void MergeRGBRow_Any_NEON(const uint8* src_r,
>-                          const uint8* src_g,
>-                          const uint8* src_b,
>-                          uint8* dst_rgb,
>+void MergeRGBRow_Any_NEON(const uint8_t* src_r,
>+                          const uint8_t* src_g,
>+                          const uint8_t* src_b,
>+                          uint8_t* dst_rgb,
>                           int width);
> 
>-void MergeUVRow_16_C(const uint16* src_u,
>-                     const uint16* src_v,
>-                     uint16* dst_uv,
>+void MergeUVRow_16_C(const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint16_t* dst_uv,
>                      int scale, /* 64 for 10 bit */
>                      int width);
>-void MergeUVRow_16_AVX2(const uint16* src_u,
>-                        const uint16* src_v,
>-                        uint16* dst_uv,
>+void MergeUVRow_16_AVX2(const uint16_t* src_u,
>+                        const uint16_t* src_v,
>+                        uint16_t* dst_uv,
>                         int scale,
>                         int width);
> 
>-void MultiplyRow_16_AVX2(const uint16* src_y,
>-                         uint16* dst_y,
>+void MultiplyRow_16_AVX2(const uint16_t* src_y,
>+                         uint16_t* dst_y,
>                          int scale,
>                          int width);
>-void MultiplyRow_16_C(const uint16* src_y, uint16* dst_y, int scale, int width);
>-
>-void CopyRow_SSE2(const uint8* src, uint8* dst, int count);
>-void CopyRow_AVX(const uint8* src, uint8* dst, int count);
>-void CopyRow_ERMS(const uint8* src, uint8* dst, int count);
>-void CopyRow_NEON(const uint8* src, uint8* dst, int count);
>-void CopyRow_MIPS(const uint8* src, uint8* dst, int count);
>-void CopyRow_C(const uint8* src, uint8* dst, int count);
>-void CopyRow_Any_SSE2(const uint8* src, uint8* dst, int count);
>-void CopyRow_Any_AVX(const uint8* src, uint8* dst, int count);
>-void CopyRow_Any_NEON(const uint8* src, uint8* dst, int count);
>-
>-void CopyRow_16_C(const uint16* src, uint16* dst, int count);
>-
>-void ARGBCopyAlphaRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBCopyAlphaRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBCopyAlphaRow_AVX2(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBCopyAlphaRow_Any_SSE2(const uint8* src_argb,
>-                               uint8* dst_argb,
>+void MultiplyRow_16_C(const uint16_t* src_y,
>+                      uint16_t* dst_y,
>+                      int scale,
>+                      int width);
>+
>+void Convert8To16Row_C(const uint8_t* src_y,
>+                       uint16_t* dst_y,
>+                       int scale,
>+                       int width);
>+void Convert8To16Row_SSE2(const uint8_t* src_y,
>+                          uint16_t* dst_y,
>+                          int scale,
>+                          int width);
>+void Convert8To16Row_AVX2(const uint8_t* src_y,
>+                          uint16_t* dst_y,
>+                          int scale,
>+                          int width);
>+void Convert8To16Row_Any_SSE2(const uint8_t* src_ptr,
>+                              uint16_t* dst_ptr,
>+                              int scale,
>+                              int width);
>+void Convert8To16Row_Any_AVX2(const uint8_t* src_ptr,
>+                              uint16_t* dst_ptr,
>+                              int scale,
>+                              int width);
>+
>+void Convert16To8Row_C(const uint16_t* src_y,
>+                       uint8_t* dst_y,
>+                       int scale,
>+                       int width);
>+void Convert16To8Row_SSSE3(const uint16_t* src_y,
>+                           uint8_t* dst_y,
>+                           int scale,
>+                           int width);
>+void Convert16To8Row_AVX2(const uint16_t* src_y,
>+                          uint8_t* dst_y,
>+                          int scale,
>+                          int width);
>+void Convert16To8Row_Any_SSSE3(const uint16_t* src_ptr,
>+                               uint8_t* dst_ptr,
>+                               int scale,
>                                int width);
>-void ARGBCopyAlphaRow_Any_AVX2(const uint8* src_argb,
>-                               uint8* dst_argb,
>+void Convert16To8Row_Any_AVX2(const uint16_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              int scale,
>+                              int width);
>+
>+void CopyRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void CopyRow_AVX(const uint8_t* src, uint8_t* dst, int width);
>+void CopyRow_ERMS(const uint8_t* src, uint8_t* dst, int width);
>+void CopyRow_NEON(const uint8_t* src, uint8_t* dst, int width);
>+void CopyRow_MIPS(const uint8_t* src, uint8_t* dst, int count);
>+void CopyRow_C(const uint8_t* src, uint8_t* dst, int count);
>+void CopyRow_Any_SSE2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void CopyRow_Any_AVX(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void CopyRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+
>+void CopyRow_16_C(const uint16_t* src, uint16_t* dst, int count);
>+
>+void ARGBCopyAlphaRow_C(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyAlphaRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyAlphaRow_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyAlphaRow_Any_SSE2(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>+                               int width);
>+void ARGBCopyAlphaRow_Any_AVX2(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
> 
>-void ARGBExtractAlphaRow_C(const uint8* src_argb, uint8* dst_a, int width);
>-void ARGBExtractAlphaRow_SSE2(const uint8* src_argb, uint8* dst_a, int width);
>-void ARGBExtractAlphaRow_AVX2(const uint8* src_argb, uint8* dst_a, int width);
>-void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width);
>-void ARGBExtractAlphaRow_MSA(const uint8* src_argb, uint8* dst_a, int width);
>-void ARGBExtractAlphaRow_Any_SSE2(const uint8* src_argb,
>-                                  uint8* dst_a,
>+void ARGBExtractAlphaRow_C(const uint8_t* src_argb, uint8_t* dst_a, int width);
>+void ARGBExtractAlphaRow_SSE2(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width);
>+void ARGBExtractAlphaRow_AVX2(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width);
>+void ARGBExtractAlphaRow_NEON(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width);
>+void ARGBExtractAlphaRow_MSA(const uint8_t* src_argb,
>+                             uint8_t* dst_a,
>+                             int width);
>+void ARGBExtractAlphaRow_Any_SSE2(const uint8_t* src_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int width);
>-void ARGBExtractAlphaRow_Any_AVX2(const uint8* src_argb,
>-                                  uint8* dst_a,
>+void ARGBExtractAlphaRow_Any_AVX2(const uint8_t* src_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int width);
>-void ARGBExtractAlphaRow_Any_NEON(const uint8* src_argb,
>-                                  uint8* dst_a,
>+void ARGBExtractAlphaRow_Any_NEON(const uint8_t* src_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int width);
>-void ARGBExtractAlphaRow_Any_MSA(const uint8* src_argb,
>-                                 uint8* dst_a,
>+void ARGBExtractAlphaRow_Any_MSA(const uint8_t* src_ptr,
>+                                 uint8_t* dst_ptr,
>                                  int width);
> 
>-void ARGBCopyYToAlphaRow_C(const uint8* src_y, uint8* dst_argb, int width);
>-void ARGBCopyYToAlphaRow_SSE2(const uint8* src_y, uint8* dst_argb, int width);
>-void ARGBCopyYToAlphaRow_AVX2(const uint8* src_y, uint8* dst_argb, int width);
>-void ARGBCopyYToAlphaRow_Any_SSE2(const uint8* src_y,
>-                                  uint8* dst_argb,
>+void ARGBCopyYToAlphaRow_C(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyYToAlphaRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyYToAlphaRow_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBCopyYToAlphaRow_Any_SSE2(const uint8_t* src_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int width);
>-void ARGBCopyYToAlphaRow_Any_AVX2(const uint8* src_y,
>-                                  uint8* dst_argb,
>+void ARGBCopyYToAlphaRow_Any_AVX2(const uint8_t* src_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int width);
> 
>-void SetRow_C(uint8* dst, uint8 v8, int count);
>-void SetRow_MSA(uint8* dst, uint8 v8, int count);
>-void SetRow_X86(uint8* dst, uint8 v8, int count);
>-void SetRow_ERMS(uint8* dst, uint8 v8, int count);
>-void SetRow_NEON(uint8* dst, uint8 v8, int count);
>-void SetRow_Any_X86(uint8* dst, uint8 v8, int count);
>-void SetRow_Any_NEON(uint8* dst, uint8 v8, int count);
>-
>-void ARGBSetRow_C(uint8* dst_argb, uint32 v32, int count);
>-void ARGBSetRow_X86(uint8* dst_argb, uint32 v32, int count);
>-void ARGBSetRow_NEON(uint8* dst_argb, uint32 v32, int count);
>-void ARGBSetRow_Any_NEON(uint8* dst_argb, uint32 v32, int count);
>-void ARGBSetRow_MSA(uint8* dst_argb, uint32 v32, int count);
>-void ARGBSetRow_Any_MSA(uint8* dst_argb, uint32 v32, int count);
>+void SetRow_C(uint8_t* dst, uint8_t v8, int width);
>+void SetRow_MSA(uint8_t* dst, uint8_t v8, int width);
>+void SetRow_X86(uint8_t* dst, uint8_t v8, int width);
>+void SetRow_ERMS(uint8_t* dst, uint8_t v8, int width);
>+void SetRow_NEON(uint8_t* dst, uint8_t v8, int width);
>+void SetRow_Any_X86(uint8_t* dst_ptr, uint8_t v32, int width);
>+void SetRow_Any_NEON(uint8_t* dst_ptr, uint8_t v32, int width);
>+
>+void ARGBSetRow_C(uint8_t* dst_argb, uint32_t v32, int width);
>+void ARGBSetRow_X86(uint8_t* dst_argb, uint32_t v32, int width);
>+void ARGBSetRow_NEON(uint8_t* dst, uint32_t v32, int width);
>+void ARGBSetRow_Any_NEON(uint8_t* dst_ptr, uint32_t v32, int width);
>+void ARGBSetRow_MSA(uint8_t* dst_argb, uint32_t v32, int width);
>+void ARGBSetRow_Any_MSA(uint8_t* dst_ptr, uint32_t v32, int width);
> 
> // ARGBShufflers for BGRAToARGB etc.
>-void ARGBShuffleRow_C(const uint8* src_argb,
>-                      uint8* dst_argb,
>-                      const uint8* shuffler,
>+void ARGBShuffleRow_C(const uint8_t* src_argb,
>+                      uint8_t* dst_argb,
>+                      const uint8_t* shuffler,
>                       int width);
>-void ARGBShuffleRow_SSE2(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>-                         int width);
>-void ARGBShuffleRow_SSSE3(const uint8* src_argb,
>-                          uint8* dst_argb,
>-                          const uint8* shuffler,
>+void ARGBShuffleRow_SSSE3(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          const uint8_t* shuffler,
>                           int width);
>-void ARGBShuffleRow_AVX2(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>+void ARGBShuffleRow_AVX2(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>+                         const uint8_t* shuffler,
>                          int width);
>-void ARGBShuffleRow_NEON(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>+void ARGBShuffleRow_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>+                         const uint8_t* shuffler,
>                          int width);
>-void ARGBShuffleRow_MSA(const uint8* src_argb,
>-                        uint8* dst_argb,
>-                        const uint8* shuffler,
>+void ARGBShuffleRow_MSA(const uint8_t* src_argb,
>+                        uint8_t* dst_argb,
>+                        const uint8_t* shuffler,
>                         int width);
>-void ARGBShuffleRow_Any_SSE2(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const uint8* shuffler,
>-                             int width);
>-void ARGBShuffleRow_Any_SSSE3(const uint8* src_argb,
>-                              uint8* dst_argb,
>-                              const uint8* shuffler,
>+void ARGBShuffleRow_Any_SSSE3(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              const uint8_t* param,
>                               int width);
>-void ARGBShuffleRow_Any_AVX2(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const uint8* shuffler,
>+void ARGBShuffleRow_Any_AVX2(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             const uint8_t* param,
>                              int width);
>-void ARGBShuffleRow_Any_NEON(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const uint8* shuffler,
>+void ARGBShuffleRow_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             const uint8_t* param,
>                              int width);
>-void ARGBShuffleRow_Any_MSA(const uint8* src_argb,
>-                            uint8* dst_argb,
>-                            const uint8* shuffler,
>-                            int width);
>-
>-void RGB24ToARGBRow_SSSE3(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RAWToARGBRow_SSSE3(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToRGB24Row_SSSE3(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RGB565ToARGBRow_SSE2(const uint8* src_rgb565, uint8* dst_argb, int width);
>-void ARGB1555ToARGBRow_SSE2(const uint8* src_argb1555,
>-                            uint8* dst_argb,
>-                            int width);
>-void ARGB4444ToARGBRow_SSE2(const uint8* src_argb4444,
>-                            uint8* dst_argb,
>-                            int width);
>-void RGB565ToARGBRow_AVX2(const uint8* src_rgb565, uint8* dst_argb, int width);
>-void ARGB1555ToARGBRow_AVX2(const uint8* src_argb1555,
>-                            uint8* dst_argb,
>-                            int width);
>-void ARGB4444ToARGBRow_AVX2(const uint8* src_argb4444,
>-                            uint8* dst_argb,
>-                            int width);
>-
>-void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RGB24ToARGBRow_MSA(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToARGBRow_MSA(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RAWToRGB24Row_MSA(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width);
>-void RGB565ToARGBRow_MSA(const uint8* src_rgb565, uint8* dst_argb, int width);
>-void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555,
>-                            uint8* dst_argb,
>-                            int width);
>-void ARGB1555ToARGBRow_MSA(const uint8* src_argb1555,
>-                           uint8* dst_argb,
>+void ARGBShuffleRow_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            const uint8_t* param,
>+                            int width);
>+
>+void RGB24ToARGBRow_SSSE3(const uint8_t* src_rgb24,
>+                          uint8_t* dst_argb,
>+                          int width);
>+void RAWToARGBRow_SSSE3(const uint8_t* src_raw, uint8_t* dst_argb, int width);
>+void RAWToRGB24Row_SSSE3(const uint8_t* src_raw, uint8_t* dst_rgb24, int width);
>+void RGB565ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGB1555ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGB4444ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void RGB565ToARGBRow_AVX2(const uint8_t* src_rgb565,
>+                          uint8_t* dst_argb,
>+                          int width);
>+void ARGB1555ToARGBRow_AVX2(const uint8_t* src_argb1555,
>+                            uint8_t* dst_argb,
>+                            int width);
>+void ARGB4444ToARGBRow_AVX2(const uint8_t* src_argb4444,
>+                            uint8_t* dst_argb,
>+                            int width);
>+
>+void RGB24ToARGBRow_NEON(const uint8_t* src_rgb24,
>+                         uint8_t* dst_argb,
>+                         int width);
>+void RGB24ToARGBRow_MSA(const uint8_t* src_rgb24, uint8_t* dst_argb, int width);
>+void RAWToARGBRow_NEON(const uint8_t* src_raw, uint8_t* dst_argb, int width);
>+void RAWToARGBRow_MSA(const uint8_t* src_raw, uint8_t* dst_argb, int width);
>+void RAWToRGB24Row_NEON(const uint8_t* src_raw, uint8_t* dst_rgb24, int width);
>+void RAWToRGB24Row_MSA(const uint8_t* src_raw, uint8_t* dst_rgb24, int width);
>+void RGB565ToARGBRow_NEON(const uint8_t* src_rgb565,
>+                          uint8_t* dst_argb,
>+                          int width);
>+void RGB565ToARGBRow_MSA(const uint8_t* src_rgb565,
>+                         uint8_t* dst_argb,
>+                         int width);
>+void ARGB1555ToARGBRow_NEON(const uint8_t* src_argb1555,
>+                            uint8_t* dst_argb,
>+                            int width);
>+void ARGB1555ToARGBRow_MSA(const uint8_t* src_argb1555,
>+                           uint8_t* dst_argb,
>                            int width);
>-void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444,
>-                            uint8* dst_argb,
>-                            int width);
>-void RGB24ToARGBRow_DSPR2(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RAWToARGBRow_DSPR2(const uint8* src_raw, uint8* dst_argb, int width);
>-void RGB565ToARGBRow_DSPR2(const uint8* src_rgb565, uint8* dst_argb, int width);
>-void ARGB1555ToARGBRow_DSPR2(const uint8* src_argb1555,
>-                             uint8* dst_argb,
>-                             int width);
>-void ARGB4444ToARGBRow_DSPR2(const uint8* src_argb4444,
>-                             uint8* dst_argb,
>-                             int width);
>-void ARGB4444ToARGBRow_MSA(const uint8* src_argb4444,
>-                           uint8* dst_argb,
>+void ARGB4444ToARGBRow_NEON(const uint8_t* src_argb4444,
>+                            uint8_t* dst_argb,
>+                            int width);
>+void ARGB4444ToARGBRow_MSA(const uint8_t* src_argb4444,
>+                           uint8_t* dst_argb,
>                            int width);
>-void RGB24ToARGBRow_C(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RAWToARGBRow_C(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToRGB24Row_C(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RGB565ToARGBRow_C(const uint8* src_rgb, uint8* dst_argb, int width);
>-void ARGB1555ToARGBRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGB4444ToARGBRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void RGB24ToARGBRow_Any_SSSE3(const uint8* src_rgb24,
>-                              uint8* dst_argb,
>+void RGB24ToARGBRow_C(const uint8_t* src_rgb24, uint8_t* dst_argb, int width);
>+void RAWToARGBRow_C(const uint8_t* src_raw, uint8_t* dst_argb, int width);
>+void RAWToRGB24Row_C(const uint8_t* src_raw, uint8_t* dst_rgb24, int width);
>+void RGB565ToARGBRow_C(const uint8_t* src_rgb565, uint8_t* dst_argb, int width);
>+void ARGB1555ToARGBRow_C(const uint8_t* src_argb1555,
>+                         uint8_t* dst_argb,
>+                         int width);
>+void ARGB4444ToARGBRow_C(const uint8_t* src_argb4444,
>+                         uint8_t* dst_argb,
>+                         int width);
>+void AR30ToARGBRow_C(const uint8_t* src_ar30, uint8_t* dst_argb, int width);
>+void AR30ToABGRRow_C(const uint8_t* src_ar30, uint8_t* dst_abgr, int width);
>+void ARGBToAR30Row_C(const uint8_t* src_argb, uint8_t* dst_ar30, int width);
>+void AR30ToAB30Row_C(const uint8_t* src_ar30, uint8_t* dst_ab30, int width);
>+
>+void RGB24ToARGBRow_Any_SSSE3(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void RAWToARGBRow_Any_SSSE3(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToRGB24Row_Any_SSSE3(const uint8* src_raw, uint8* dst_rgb24, int width);
>+void RAWToARGBRow_Any_SSSE3(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void RAWToRGB24Row_Any_SSSE3(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             int width);
> 
>-void RGB565ToARGBRow_Any_SSE2(const uint8* src_rgb565,
>-                              uint8* dst_argb,
>+void RGB565ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGB1555ToARGBRow_Any_SSE2(const uint8* src_argb1555,
>-                                uint8* dst_argb,
>+void ARGB1555ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGB4444ToARGBRow_Any_SSE2(const uint8* src_argb4444,
>-                                uint8* dst_argb,
>+void ARGB4444ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void RGB565ToARGBRow_Any_AVX2(const uint8* src_rgb565,
>-                              uint8* dst_argb,
>+void RGB565ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGB1555ToARGBRow_Any_AVX2(const uint8* src_argb1555,
>-                                uint8* dst_argb,
>+void ARGB1555ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGB4444ToARGBRow_Any_AVX2(const uint8* src_argb4444,
>-                                uint8* dst_argb,
>+void ARGB4444ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
> 
>-void RGB24ToARGBRow_Any_NEON(const uint8* src_rgb24,
>-                             uint8* dst_argb,
>+void RGB24ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void RGB24ToARGBRow_Any_MSA(const uint8* src_rgb24, uint8* dst_argb, int width);
>-void RAWToARGBRow_Any_NEON(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToARGBRow_Any_MSA(const uint8* src_raw, uint8* dst_argb, int width);
>-void RAWToRGB24Row_Any_NEON(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RAWToRGB24Row_Any_MSA(const uint8* src_raw, uint8* dst_rgb24, int width);
>-void RGB565ToARGBRow_Any_NEON(const uint8* src_rgb565,
>-                              uint8* dst_argb,
>+void RGB24ToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void RAWToARGBRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RAWToARGBRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RAWToRGB24Row_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void RAWToRGB24Row_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void RGB565ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void RGB565ToARGBRow_Any_MSA(const uint8* src_rgb565,
>-                             uint8* dst_argb,
>+void RGB565ToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void ARGB1555ToARGBRow_Any_NEON(const uint8* src_argb1555,
>-                                uint8* dst_argb,
>+void ARGB1555ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGB1555ToARGBRow_Any_MSA(const uint8* src_argb1555,
>-                               uint8* dst_argb,
>+void ARGB1555ToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
>-void ARGB4444ToARGBRow_Any_NEON(const uint8* src_argb4444,
>-                                uint8* dst_argb,
>+void ARGB4444ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void RGB24ToARGBRow_Any_DSPR2(const uint8* src_rgb24,
>-                              uint8* dst_argb,
>-                              int width);
>-void RAWToARGBRow_Any_DSPR2(const uint8* src_raw, uint8* dst_argb, int width);
>-void RGB565ToARGBRow_Any_DSPR2(const uint8* src_rgb565,
>-                               uint8* dst_argb,
>-                               int width);
>-void ARGB1555ToARGBRow_Any_DSPR2(const uint8* src_argb1555,
>-                                 uint8* dst_argb,
>-                                 int width);
>-void ARGB4444ToARGBRow_Any_DSPR2(const uint8* src_argb4444,
>-                                 uint8* dst_argb,
>-                                 int width);
> 
>-void ARGB4444ToARGBRow_Any_MSA(const uint8* src_argb4444,
>-                               uint8* dst_argb,
>+void ARGB4444ToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
> 
>-void ARGBToRGB24Row_SSSE3(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_SSSE3(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB4444Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int width);
>-
>-void ARGBToRGB565DitherRow_C(const uint8* src_argb,
>-                             uint8* dst_rgb,
>-                             const uint32 dither4,
>+void ARGBToRGB24Row_SSSE3(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToRAWRow_SSSE3(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToRGB565Row_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToARGB1555Row_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToARGB4444Row_SSE2(const uint8_t* src, uint8_t* dst, int width);
>+void ABGRToAR30Row_SSSE3(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToAR30Row_SSSE3(const uint8_t* src, uint8_t* dst, int width);
>+
>+void ARGBToRGB565DitherRow_C(const uint8_t* src_argb,
>+                             uint8_t* dst_rgb,
>+                             const uint32_t dither4,
>                              int width);
>-void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_SSE2(const uint8_t* src,
>+                                uint8_t* dst,
>+                                const uint32_t dither4,
>                                 int width);
>-void ARGBToRGB565DitherRow_AVX2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_AVX2(const uint8_t* src,
>+                                uint8_t* dst,
>+                                const uint32_t dither4,
>                                 int width);
> 
>-void ARGBToRGB565Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB4444Row_AVX2(const uint8* src_argb, uint8* dst_rgb, int width);
>-
>-void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB4444Row_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565DitherRow_NEON(const uint8* src_argb,
>-                                uint8* dst_rgb,
>-                                const uint32 dither4,
>+void ARGBToRGB565Row_AVX2(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToARGB1555Row_AVX2(const uint8_t* src_argb,
>+                            uint8_t* dst_rgb,
>+                            int width);
>+void ARGBToARGB4444Row_AVX2(const uint8_t* src_argb,
>+                            uint8_t* dst_rgb,
>+                            int width);
>+void ABGRToAR30Row_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+void ARGBToAR30Row_AVX2(const uint8_t* src, uint8_t* dst, int width);
>+
>+void ARGBToRGB24Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_rgb24,
>+                         int width);
>+void ARGBToRAWRow_NEON(const uint8_t* src_argb, uint8_t* dst_raw, int width);
>+void ARGBToRGB565Row_NEON(const uint8_t* src_argb,
>+                          uint8_t* dst_rgb565,
>+                          int width);
>+void ARGBToARGB1555Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb1555,
>+                            int width);
>+void ARGBToARGB4444Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb4444,
>+                            int width);
>+void ARGBToRGB565DitherRow_NEON(const uint8_t* src_argb,
>+                                uint8_t* dst_rgb,
>+                                const uint32_t dither4,
>                                 int width);
>-void ARGBToRGB24Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB4444Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565DitherRow_MSA(const uint8* src_argb,
>-                               uint8* dst_rgb,
>-                               const uint32 dither4,
>+void ARGBToRGB24Row_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToRAWRow_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToRGB565Row_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToARGB1555Row_MSA(const uint8_t* src_argb,
>+                           uint8_t* dst_rgb,
>+                           int width);
>+void ARGBToARGB4444Row_MSA(const uint8_t* src_argb,
>+                           uint8_t* dst_rgb,
>+                           int width);
>+void ARGBToRGB565DitherRow_MSA(const uint8_t* src_argb,
>+                               uint8_t* dst_rgb,
>+                               const uint32_t dither4,
>                                int width);
> 
>-void ARGBToRGBARow_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB24Row_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB4444Row_C(const uint8* src_argb, uint8* dst_rgb, int width);
>-
>-void J400ToARGBRow_SSE2(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_AVX2(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_MSA(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_C(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_Any_SSE2(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_Any_AVX2(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_Any_NEON(const uint8* src_y, uint8* dst_argb, int width);
>-void J400ToARGBRow_Any_MSA(const uint8* src_y, uint8* dst_argb, int width);
>-
>-void I444ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_argb,
>+void ARGBToRGBARow_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToRGB24Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToRAWRow_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToRGB565Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToARGB1555Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ARGBToARGB4444Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width);
>+void ABGRToAR30Row_C(const uint8_t* src_abgr, uint8_t* dst_ar30, int width);
>+void ARGBToAR30Row_C(const uint8_t* src_argb, uint8_t* dst_ar30, int width);
>+
>+void J400ToARGBRow_SSE2(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void J400ToARGBRow_AVX2(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void J400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void J400ToARGBRow_MSA(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void J400ToARGBRow_C(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void J400ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void J400ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void J400ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void J400ToARGBRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+
>+void I444ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>+                     const struct YuvConstants* yuvconstants,
>+                     int width);
>+void I422ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>+                     const struct YuvConstants* yuvconstants,
>+                     int width);
>+void I422ToAR30Row_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void I422ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_argb,
>+void I210ToAR30Row_C(const uint16_t* src_y,
>+                     const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void I422ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_argb,
>+void I210ToARGBRow_C(const uint16_t* src_y,
>+                     const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void I422AlphaToARGBRow_C(const uint8* y_buf,
>-                          const uint8* u_buf,
>-                          const uint8* v_buf,
>-                          const uint8* a_buf,
>-                          uint8* dst_argb,
>+void I422AlphaToARGBRow_C(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          const uint8_t* src_a,
>+                          uint8_t* rgb_buf,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void NV12ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_uv,
>-                     uint8* dst_argb,
>+void NV12ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_uv,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void NV12ToRGB565Row_C(const uint8* src_y,
>-                       const uint8* src_uv,
>-                       uint8* dst_argb,
>+void NV12ToRGB565Row_C(const uint8_t* src_y,
>+                       const uint8_t* src_uv,
>+                       uint8_t* dst_rgb565,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void NV21ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_uv,
>-                     uint8* dst_argb,
>+void NV21ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_vu,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void YUY2ToARGBRow_C(const uint8* src_yuy2,
>-                     uint8* dst_argb,
>+void NV12ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_uv,
>+                      uint8_t* rgb_buf,
>+                      const struct YuvConstants* yuvconstants,
>+                      int width);
>+void NV21ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_vu,
>+                      uint8_t* rgb_buf,
>+                      const struct YuvConstants* yuvconstants,
>+                      int width);
>+void YUY2ToARGBRow_C(const uint8_t* src_yuy2,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void UYVYToARGBRow_C(const uint8* src_uyvy,
>-                     uint8* dst_argb,
>+void UYVYToARGBRow_C(const uint8_t* src_uyvy,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void I422ToRGBARow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_rgba,
>+void I422ToRGBARow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width);
>-void I422ToRGB24Row_C(const uint8* src_y,
>-                      const uint8* src_u,
>-                      const uint8* src_v,
>-                      uint8* dst_rgb24,
>+void I422ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_u,
>+                      const uint8_t* src_v,
>+                      uint8_t* rgb_buf,
>                       const struct YuvConstants* yuvconstants,
>                       int width);
>-void I422ToARGB4444Row_C(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb4444,
>+void I422ToARGB4444Row_C(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_argb4444,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToARGB1555Row_C(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb4444,
>+void I422ToARGB1555Row_C(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_argb1555,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToRGB565Row_C(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_rgb565,
>+void I422ToRGB565Row_C(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_rgb565,
>                        const struct YuvConstants* yuvconstants,
>                        int width);
>-void I422ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>-                        const struct YuvConstants* yuvconstants,
>-                        int width);
>-void I422ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToARGBRow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* u_buf,
>+                        const uint8_t* v_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToRGBARow_AVX2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToRGBARow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* u_buf,
>+                        const uint8_t* v_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I444ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>+void I444ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I444ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I444ToARGBRow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* u_buf,
>+                        const uint8_t* v_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I444ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>+void I444ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I444ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I444ToARGBRow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* u_buf,
>+                        const uint8_t* v_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>+void I422ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_argb,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width);
>+
>+void I422ToAR30Row_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_ar30,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422AlphaToARGBRow_SSSE3(const uint8* y_buf,
>-                              const uint8* u_buf,
>-                              const uint8* v_buf,
>-                              const uint8* a_buf,
>-                              uint8* dst_argb,
>+void I210ToAR30Row_SSSE3(const uint16_t* y_buf,
>+                         const uint16_t* u_buf,
>+                         const uint16_t* v_buf,
>+                         uint8_t* dst_ar30,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width);
>+void I210ToARGBRow_SSSE3(const uint16_t* y_buf,
>+                         const uint16_t* u_buf,
>+                         const uint16_t* v_buf,
>+                         uint8_t* dst_argb,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width);
>+void I422ToAR30Row_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* u_buf,
>+                        const uint8_t* v_buf,
>+                        uint8_t* dst_ar30,
>+                        const struct YuvConstants* yuvconstants,
>+                        int width);
>+void I210ToARGBRow_AVX2(const uint16_t* y_buf,
>+                        const uint16_t* u_buf,
>+                        const uint16_t* v_buf,
>+                        uint8_t* dst_argb,
>+                        const struct YuvConstants* yuvconstants,
>+                        int width);
>+void I210ToAR30Row_AVX2(const uint16_t* y_buf,
>+                        const uint16_t* u_buf,
>+                        const uint16_t* v_buf,
>+                        uint8_t* dst_ar30,
>+                        const struct YuvConstants* yuvconstants,
>+                        int width);
>+void I422AlphaToARGBRow_SSSE3(const uint8_t* y_buf,
>+                              const uint8_t* u_buf,
>+                              const uint8_t* v_buf,
>+                              const uint8_t* a_buf,
>+                              uint8_t* dst_argb,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void I422AlphaToARGBRow_AVX2(const uint8* y_buf,
>-                             const uint8* u_buf,
>-                             const uint8* v_buf,
>-                             const uint8* a_buf,
>-                             uint8* dst_argb,
>+void I422AlphaToARGBRow_AVX2(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             const uint8_t* a_buf,
>+                             uint8_t* dst_argb,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>-                         const struct YuvConstants* yuvconstants,
>-                         int width);
>-void NV12ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_uv,
>-                         uint8* dst_argb,
>+void NV12ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void NV12ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_uv,
>-                        uint8* dst_argb,
>+void NV12ToARGBRow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* uv_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void NV12ToRGB565Row_SSSE3(const uint8* src_y,
>-                           const uint8* src_uv,
>-                           uint8* dst_argb,
>+void NV12ToRGB565Row_SSSE3(const uint8_t* src_y,
>+                           const uint8_t* src_uv,
>+                           uint8_t* dst_rgb565,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void NV12ToRGB565Row_AVX2(const uint8* src_y,
>-                          const uint8* src_uv,
>-                          uint8* dst_argb,
>+void NV12ToRGB565Row_AVX2(const uint8_t* src_y,
>+                          const uint8_t* src_uv,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void NV21ToARGBRow_SSSE3(const uint8* src_y,
>-                         const uint8* src_uv,
>-                         uint8* dst_argb,
>+void NV21ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* vu_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void NV21ToARGBRow_AVX2(const uint8* src_y,
>-                        const uint8* src_uv,
>-                        uint8* dst_argb,
>+void NV21ToARGBRow_AVX2(const uint8_t* y_buf,
>+                        const uint8_t* vu_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void YUY2ToARGBRow_SSSE3(const uint8* src_yuy2,
>-                         uint8* dst_argb,
>+void YUY2ToARGBRow_SSSE3(const uint8_t* yuy2_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void UYVYToARGBRow_SSSE3(const uint8* src_uyvy,
>-                         uint8* dst_argb,
>+void UYVYToARGBRow_SSSE3(const uint8_t* uyvy_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void YUY2ToARGBRow_AVX2(const uint8* src_yuy2,
>-                        uint8* dst_argb,
>+void YUY2ToARGBRow_AVX2(const uint8_t* yuy2_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void UYVYToARGBRow_AVX2(const uint8* src_uyvy,
>-                        uint8* dst_argb,
>+void UYVYToARGBRow_AVX2(const uint8_t* uyvy_buf,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width);
>-void I422ToRGBARow_SSSE3(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgba,
>+void I422ToRGBARow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_rgba,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToARGB4444Row_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I422ToARGB4444Row_SSSE3(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             uint8_t* dst_argb4444,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGB4444Row_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToARGB4444Row_AVX2(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb4444,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToARGB1555Row_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I422ToARGB1555Row_SSSE3(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             uint8_t* dst_argb1555,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGB1555Row_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToARGB1555Row_AVX2(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb1555,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGB565Row_SSSE3(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb,
>+void I422ToRGB565Row_SSSE3(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_rgb565,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void I422ToRGB565Row_AVX2(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_argb,
>+void I422ToRGB565Row_AVX2(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void I422ToRGB24Row_SSSE3(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_rgb24,
>+void I422ToRGB24Row_SSSE3(const uint8_t* y_buf,
>+                          const uint8_t* u_buf,
>+                          const uint8_t* v_buf,
>+                          uint8_t* dst_rgb24,
>                           const struct YuvConstants* yuvconstants,
>                           int width);
>-void I422ToRGB24Row_AVX2(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb24,
>+void I422ToRGB24Row_AVX2(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb24,
>                          const struct YuvConstants* yuvconstants,
>                          int width);
>-void I422ToARGBRow_Any_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToARGBRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGBARow_Any_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToRGBARow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I444ToARGBRow_Any_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I444ToARGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I444ToARGBRow_Any_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I444ToARGBRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToARGBRow_Any_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I422ToARGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width);
>+void I422ToAR30Row_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width);
>+void I210ToAR30Row_Any_SSSE3(const uint16_t* y_buf,
>+                             const uint16_t* u_buf,
>+                             const uint16_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422AlphaToARGBRow_Any_SSSE3(const uint8* y_buf,
>-                                  const uint8* u_buf,
>-                                  const uint8* v_buf,
>-                                  const uint8* a_buf,
>-                                  uint8* dst_argb,
>+void I210ToARGBRow_Any_SSSE3(const uint16_t* y_buf,
>+                             const uint16_t* u_buf,
>+                             const uint16_t* v_buf,
>+                             uint8_t* dst_ptr,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width);
>+void I422ToAR30Row_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width);
>+void I210ToARGBRow_Any_AVX2(const uint16_t* y_buf,
>+                            const uint16_t* u_buf,
>+                            const uint16_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width);
>+void I210ToAR30Row_Any_AVX2(const uint16_t* y_buf,
>+                            const uint16_t* u_buf,
>+                            const uint16_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width);
>+void I422AlphaToARGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                                  const uint8_t* u_buf,
>+                                  const uint8_t* v_buf,
>+                                  const uint8_t* a_buf,
>+                                  uint8_t* dst_ptr,
>                                   const struct YuvConstants* yuvconstants,
>                                   int width);
>-void I422AlphaToARGBRow_Any_AVX2(const uint8* y_buf,
>-                                 const uint8* u_buf,
>-                                 const uint8* v_buf,
>-                                 const uint8* a_buf,
>-                                 uint8* dst_argb,
>+void I422AlphaToARGBRow_Any_AVX2(const uint8_t* y_buf,
>+                                 const uint8_t* u_buf,
>+                                 const uint8_t* v_buf,
>+                                 const uint8_t* a_buf,
>+                                 uint8_t* dst_ptr,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width);
>-void NV12ToARGBRow_Any_SSSE3(const uint8* src_y,
>-                             const uint8* src_uv,
>-                             uint8* dst_argb,
>+void NV12ToARGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void NV12ToARGBRow_Any_AVX2(const uint8* src_y,
>-                            const uint8* src_uv,
>-                            uint8* dst_argb,
>+void NV12ToARGBRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* uv_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void NV21ToARGBRow_Any_SSSE3(const uint8* src_y,
>-                             const uint8* src_vu,
>-                             uint8* dst_argb,
>+void NV21ToARGBRow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void NV21ToARGBRow_Any_AVX2(const uint8* src_y,
>-                            const uint8* src_vu,
>-                            uint8* dst_argb,
>+void NV21ToARGBRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* uv_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void NV12ToRGB565Row_Any_SSSE3(const uint8* src_y,
>-                               const uint8* src_uv,
>-                               uint8* dst_argb,
>+void NV12ToRGB565Row_Any_SSSE3(const uint8_t* y_buf,
>+                               const uint8_t* uv_buf,
>+                               uint8_t* dst_ptr,
>                                const struct YuvConstants* yuvconstants,
>                                int width);
>-void NV12ToRGB565Row_Any_AVX2(const uint8* src_y,
>-                              const uint8* src_uv,
>-                              uint8* dst_argb,
>+void NV12ToRGB565Row_Any_AVX2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void YUY2ToARGBRow_Any_SSSE3(const uint8* src_yuy2,
>-                             uint8* dst_argb,
>+void YUY2ToARGBRow_Any_SSSE3(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void UYVYToARGBRow_Any_SSSE3(const uint8* src_uyvy,
>-                             uint8* dst_argb,
>+void UYVYToARGBRow_Any_SSSE3(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void YUY2ToARGBRow_Any_AVX2(const uint8* src_yuy2,
>-                            uint8* dst_argb,
>+void YUY2ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void UYVYToARGBRow_Any_AVX2(const uint8* src_uyvy,
>-                            uint8* dst_argb,
>+void UYVYToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGBARow_Any_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_rgba,
>+void I422ToRGBARow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGB4444Row_Any_SSSE3(const uint8* src_y,
>-                                 const uint8* src_u,
>-                                 const uint8* src_v,
>-                                 uint8* dst_rgba,
>+void I422ToARGB4444Row_Any_SSSE3(const uint8_t* y_buf,
>+                                 const uint8_t* u_buf,
>+                                 const uint8_t* v_buf,
>+                                 uint8_t* dst_ptr,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width);
>-void I422ToARGB4444Row_Any_AVX2(const uint8* src_y,
>-                                const uint8* src_u,
>-                                const uint8* src_v,
>-                                uint8* dst_rgba,
>+void I422ToARGB4444Row_Any_AVX2(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_ptr,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width);
>-void I422ToARGB1555Row_Any_SSSE3(const uint8* src_y,
>-                                 const uint8* src_u,
>-                                 const uint8* src_v,
>-                                 uint8* dst_rgba,
>+void I422ToARGB1555Row_Any_SSSE3(const uint8_t* y_buf,
>+                                 const uint8_t* u_buf,
>+                                 const uint8_t* v_buf,
>+                                 uint8_t* dst_ptr,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width);
>-void I422ToARGB1555Row_Any_AVX2(const uint8* src_y,
>-                                const uint8* src_u,
>-                                const uint8* src_v,
>-                                uint8* dst_rgba,
>+void I422ToARGB1555Row_Any_AVX2(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_ptr,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width);
>-void I422ToRGB565Row_Any_SSSE3(const uint8* src_y,
>-                               const uint8* src_u,
>-                               const uint8* src_v,
>-                               uint8* dst_rgba,
>+void I422ToRGB565Row_Any_SSSE3(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_ptr,
>                                const struct YuvConstants* yuvconstants,
>                                int width);
>-void I422ToRGB565Row_Any_AVX2(const uint8* src_y,
>-                              const uint8* src_u,
>-                              const uint8* src_v,
>-                              uint8* dst_rgba,
>+void I422ToRGB565Row_Any_AVX2(const uint8_t* y_buf,
>+                              const uint8_t* u_buf,
>+                              const uint8_t* v_buf,
>+                              uint8_t* dst_ptr,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void I422ToRGB24Row_Any_SSSE3(const uint8* src_y,
>-                              const uint8* src_u,
>-                              const uint8* src_v,
>-                              uint8* dst_argb,
>+void I422ToRGB24Row_Any_SSSE3(const uint8_t* y_buf,
>+                              const uint8_t* u_buf,
>+                              const uint8_t* v_buf,
>+                              uint8_t* dst_ptr,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void I422ToRGB24Row_Any_AVX2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I422ToRGB24Row_Any_AVX2(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
> 
>-void I400ToARGBRow_C(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_SSE2(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_AVX2(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_MSA(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_Any_SSE2(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_Any_AVX2(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_Any_NEON(const uint8* src_y, uint8* dst_argb, int width);
>-void I400ToARGBRow_Any_MSA(const uint8* src_y, uint8* dst_argb, int width);
>+void I400ToARGBRow_C(const uint8_t* src_y, uint8_t* rgb_buf, int width);
>+void I400ToARGBRow_SSE2(const uint8_t* y_buf, uint8_t* dst_argb, int width);
>+void I400ToARGBRow_AVX2(const uint8_t* y_buf, uint8_t* dst_argb, int width);
>+void I400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void I400ToARGBRow_MSA(const uint8_t* src_y, uint8_t* dst_argb, int width);
>+void I400ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I400ToARGBRow_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I400ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I400ToARGBRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
> 
> // ARGB preattenuated alpha blend.
>-void ARGBBlendRow_SSSE3(const uint8* src_argb,
>-                        const uint8* src_argb1,
>-                        uint8* dst_argb,
>+void ARGBBlendRow_SSSE3(const uint8_t* src_argb0,
>+                        const uint8_t* src_argb1,
>+                        uint8_t* dst_argb,
>                         int width);
>-void ARGBBlendRow_NEON(const uint8* src_argb,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBBlendRow_NEON(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width);
>-void ARGBBlendRow_MSA(const uint8* src_argb,
>-                      const uint8* src_argb1,
>-                      uint8* dst_argb,
>+void ARGBBlendRow_MSA(const uint8_t* src_argb0,
>+                      const uint8_t* src_argb1,
>+                      uint8_t* dst_argb,
>                       int width);
>-void ARGBBlendRow_C(const uint8* src_argb,
>-                    const uint8* src_argb1,
>-                    uint8* dst_argb,
>+void ARGBBlendRow_C(const uint8_t* src_argb0,
>+                    const uint8_t* src_argb1,
>+                    uint8_t* dst_argb,
>                     int width);
> 
> // Unattenuated planar alpha blend.
>-void BlendPlaneRow_SSSE3(const uint8* src0,
>-                         const uint8* src1,
>-                         const uint8* alpha,
>-                         uint8* dst,
>-                         int width);
>-void BlendPlaneRow_Any_SSSE3(const uint8* src0,
>-                             const uint8* src1,
>-                             const uint8* alpha,
>-                             uint8* dst,
>+void BlendPlaneRow_SSSE3(const uint8_t* src0,
>+                         const uint8_t* src1,
>+                         const uint8_t* alpha,
>+                         uint8_t* dst,
>+                         int width);
>+void BlendPlaneRow_Any_SSSE3(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void BlendPlaneRow_AVX2(const uint8* src0,
>-                        const uint8* src1,
>-                        const uint8* alpha,
>-                        uint8* dst,
>+void BlendPlaneRow_AVX2(const uint8_t* src0,
>+                        const uint8_t* src1,
>+                        const uint8_t* alpha,
>+                        uint8_t* dst,
>                         int width);
>-void BlendPlaneRow_Any_AVX2(const uint8* src0,
>-                            const uint8* src1,
>-                            const uint8* alpha,
>-                            uint8* dst,
>-                            int width);
>-void BlendPlaneRow_C(const uint8* src0,
>-                     const uint8* src1,
>-                     const uint8* alpha,
>-                     uint8* dst,
>+void BlendPlaneRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void BlendPlaneRow_C(const uint8_t* src0,
>+                     const uint8_t* src1,
>+                     const uint8_t* alpha,
>+                     uint8_t* dst,
>                      int width);
> 
> // ARGB multiply images. Same API as Blend, but these require
> // pointer and width alignment for SSE2.
>-void ARGBMultiplyRow_C(const uint8* src_argb,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBMultiplyRow_C(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width);
>-void ARGBMultiplyRow_SSE2(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_SSE2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBMultiplyRow_Any_SSE2(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBMultiplyRow_Any_SSE2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBMultiplyRow_AVX2(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_AVX2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBMultiplyRow_Any_AVX2(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBMultiplyRow_Any_AVX2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBMultiplyRow_NEON(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBMultiplyRow_Any_NEON(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBMultiplyRow_Any_NEON(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBMultiplyRow_MSA(const uint8* src_argb,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBMultiplyRow_MSA(const uint8_t* src_argb0,
>+                         const uint8_t* src_argb1,
>+                         uint8_t* dst_argb,
>                          int width);
>-void ARGBMultiplyRow_Any_MSA(const uint8* src_argb,
>-                             const uint8* src_argb1,
>-                             uint8* dst_argb,
>+void ARGBMultiplyRow_Any_MSA(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              int width);
> 
> // ARGB add images.
>-void ARGBAddRow_C(const uint8* src_argb,
>-                  const uint8* src_argb1,
>-                  uint8* dst_argb,
>+void ARGBAddRow_C(const uint8_t* src_argb0,
>+                  const uint8_t* src_argb1,
>+                  uint8_t* dst_argb,
>                   int width);
>-void ARGBAddRow_SSE2(const uint8* src_argb,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_SSE2(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width);
>-void ARGBAddRow_Any_SSE2(const uint8* src_argb,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBAddRow_Any_SSE2(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void ARGBAddRow_AVX2(const uint8* src_argb,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_AVX2(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width);
>-void ARGBAddRow_Any_AVX2(const uint8* src_argb,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBAddRow_Any_AVX2(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void ARGBAddRow_NEON(const uint8* src_argb,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_NEON(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width);
>-void ARGBAddRow_Any_NEON(const uint8* src_argb,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBAddRow_Any_NEON(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void ARGBAddRow_MSA(const uint8* src_argb,
>-                    const uint8* src_argb1,
>-                    uint8* dst_argb,
>+void ARGBAddRow_MSA(const uint8_t* src_argb0,
>+                    const uint8_t* src_argb1,
>+                    uint8_t* dst_argb,
>                     int width);
>-void ARGBAddRow_Any_MSA(const uint8* src_argb,
>-                        const uint8* src_argb1,
>-                        uint8* dst_argb,
>+void ARGBAddRow_Any_MSA(const uint8_t* y_buf,
>+                        const uint8_t* uv_buf,
>+                        uint8_t* dst_ptr,
>                         int width);
> 
> // ARGB subtract images. Same API as Blend, but these require
> // pointer and width alignment for SSE2.
>-void ARGBSubtractRow_C(const uint8* src_argb,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBSubtractRow_C(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width);
>-void ARGBSubtractRow_SSE2(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_SSE2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBSubtractRow_Any_SSE2(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBSubtractRow_Any_SSE2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBSubtractRow_AVX2(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_AVX2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBSubtractRow_Any_AVX2(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBSubtractRow_Any_AVX2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBSubtractRow_NEON(const uint8* src_argb,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width);
>-void ARGBSubtractRow_Any_NEON(const uint8* src_argb,
>-                              const uint8* src_argb1,
>-                              uint8* dst_argb,
>+void ARGBSubtractRow_Any_NEON(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void ARGBSubtractRow_MSA(const uint8* src_argb,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBSubtractRow_MSA(const uint8_t* src_argb0,
>+                         const uint8_t* src_argb1,
>+                         uint8_t* dst_argb,
>                          int width);
>-void ARGBSubtractRow_Any_MSA(const uint8* src_argb,
>-                             const uint8* src_argb1,
>-                             uint8* dst_argb,
>+void ARGBSubtractRow_Any_MSA(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              int width);
> 
>-void ARGBToRGB24Row_Any_SSSE3(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_Any_SSSE3(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_Any_SSE2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_Any_SSE2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToRGB24Row_Any_SSSE3(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              int width);
>+void ARGBToRAWRow_Any_SSSE3(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBToRGB565Row_Any_SSE2(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              int width);
>+void ARGBToARGB1555Row_Any_SSE2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGBToARGB4444Row_Any_SSE2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToARGB4444Row_Any_SSE2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>+void ABGRToAR30Row_Any_SSSE3(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             int width);
>+void ARGBToAR30Row_Any_SSSE3(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             int width);
> 
>-void ARGBToRGB565DitherRow_Any_SSE2(const uint8* src_argb,
>-                                    uint8* dst_rgb,
>-                                    const uint32 dither4,
>+void ARGBToRGB565DitherRow_Any_SSE2(const uint8_t* src_ptr,
>+                                    uint8_t* dst_ptr,
>+                                    const uint32_t param,
>                                     int width);
>-void ARGBToRGB565DitherRow_Any_AVX2(const uint8* src_argb,
>-                                    uint8* dst_rgb,
>-                                    const uint32 dither4,
>+void ARGBToRGB565DitherRow_Any_AVX2(const uint8_t* src_ptr,
>+                                    uint8_t* dst_ptr,
>+                                    const uint32_t param,
>                                     int width);
> 
>-void ARGBToRGB565Row_Any_AVX2(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_Any_AVX2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToRGB565Row_Any_AVX2(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              int width);
>+void ARGBToARGB1555Row_Any_AVX2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGBToARGB4444Row_Any_AVX2(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToARGB4444Row_Any_AVX2(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>+void ABGRToAR30Row_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBToAR30Row_Any_AVX2(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
> 
>-void ARGBToRGB24Row_Any_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_Any_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_Any_NEON(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_Any_NEON(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToRGB24Row_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             int width);
>+void ARGBToRAWRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToRGB565Row_Any_NEON(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>+                              int width);
>+void ARGBToARGB1555Row_Any_NEON(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGBToARGB4444Row_Any_NEON(const uint8* src_argb,
>-                                uint8* dst_rgb,
>+void ARGBToARGB4444Row_Any_NEON(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGBToRGB565DitherRow_Any_NEON(const uint8* src_argb,
>-                                    uint8* dst_rgb,
>-                                    const uint32 dither4,
>+void ARGBToRGB565DitherRow_Any_NEON(const uint8_t* src_ptr,
>+                                    uint8_t* dst_ptr,
>+                                    const uint32_t param,
>                                     int width);
>-void ARGBToRGB24Row_Any_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRAWRow_Any_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToRGB565Row_Any_MSA(const uint8* src_argb, uint8* dst_rgb, int width);
>-void ARGBToARGB1555Row_Any_MSA(const uint8* src_argb,
>-                               uint8* dst_rgb,
>+void ARGBToRGB24Row_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void ARGBToRAWRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void ARGBToRGB565Row_Any_MSA(const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>+                             int width);
>+void ARGBToARGB1555Row_Any_MSA(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
>-void ARGBToARGB4444Row_Any_MSA(const uint8* src_argb,
>-                               uint8* dst_rgb,
>+void ARGBToARGB4444Row_Any_MSA(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
>-void ARGBToRGB565DitherRow_Any_MSA(const uint8* src_argb,
>-                                   uint8* dst_rgb,
>-                                   const uint32 dither4,
>+void ARGBToRGB565DitherRow_Any_MSA(const uint8_t* src_ptr,
>+                                   uint8_t* dst_ptr,
>+                                   const uint32_t param,
>                                    int width);
> 
>-void I444ToARGBRow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I444ToARGBRow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToARGBRow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToARGBRow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422AlphaToARGBRow_Any_NEON(const uint8* src_y,
>-                                 const uint8* src_u,
>-                                 const uint8* src_v,
>-                                 const uint8* src_a,
>-                                 uint8* dst_argb,
>+void I422AlphaToARGBRow_Any_NEON(const uint8_t* y_buf,
>+                                 const uint8_t* u_buf,
>+                                 const uint8_t* v_buf,
>+                                 const uint8_t* a_buf,
>+                                 uint8_t* dst_ptr,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width);
>-void I422ToRGBARow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb,
>+void I422ToRGBARow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGB24Row_Any_NEON(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>+void I422ToRGB24Row_Any_NEON(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGB4444Row_Any_NEON(const uint8* src_y,
>-                                const uint8* src_u,
>-                                const uint8* src_v,
>-                                uint8* dst_argb,
>+void I422ToARGB4444Row_Any_NEON(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_ptr,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width);
>-void I422ToARGB1555Row_Any_NEON(const uint8* src_y,
>-                                const uint8* src_u,
>-                                const uint8* src_v,
>-                                uint8* dst_argb,
>+void I422ToARGB1555Row_Any_NEON(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_ptr,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width);
>-void I422ToRGB565Row_Any_NEON(const uint8* src_y,
>-                              const uint8* src_u,
>-                              const uint8* src_v,
>-                              uint8* dst_argb,
>+void I422ToRGB565Row_Any_NEON(const uint8_t* y_buf,
>+                              const uint8_t* u_buf,
>+                              const uint8_t* v_buf,
>+                              uint8_t* dst_ptr,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void NV12ToARGBRow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_uv,
>-                            uint8* dst_argb,
>+void NV12ToARGBRow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* uv_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void NV21ToARGBRow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_vu,
>-                            uint8* dst_argb,
>+void NV21ToARGBRow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* uv_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void NV12ToRGB565Row_Any_NEON(const uint8* src_y,
>-                              const uint8* src_uv,
>-                              uint8* dst_argb,
>+void NV12ToRGB24Row_Any_NEON(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width);
>+void NV21ToRGB24Row_Any_NEON(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width);
>+void NV12ToRGB565Row_Any_NEON(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               const struct YuvConstants* yuvconstants,
>                               int width);
>-void YUY2ToARGBRow_Any_NEON(const uint8* src_yuy2,
>-                            uint8* dst_argb,
>+void YUY2ToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void UYVYToARGBRow_Any_NEON(const uint8* src_uyvy,
>-                            uint8* dst_argb,
>+void UYVYToARGBRow_Any_NEON(const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I444ToARGBRow_Any_DSPR2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void I422ToARGB4444Row_Any_DSPR2(const uint8* src_y,
>-                                 const uint8* src_u,
>-                                 const uint8* src_v,
>-                                 uint8* dst_argb,
>-                                 const struct YuvConstants* yuvconstants,
>-                                 int width);
>-void I422ToARGBRow_Any_DSPR2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void I422ToARGBRow_DSPR2(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>-                         const struct YuvConstants* yuvconstants,
>-                         int width);
>-void I422ToARGB1555Row_Any_DSPR2(const uint8* src_y,
>-                                 const uint8* src_u,
>-                                 const uint8* src_v,
>-                                 uint8* dst_argb,
>-                                 const struct YuvConstants* yuvconstants,
>-                                 int width);
>-void I411ToARGBRow_Any_DSPR2(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void NV12ToARGBRow_Any_DSPR2(const uint8* src_y,
>-                             const uint8* src_uv,
>-                             uint8* dst_argb,
>-                             const struct YuvConstants* yuvconstants,
>-                             int width);
>-void I422ToARGBRow_DSPR2(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb,
>-                         const struct YuvConstants* yuvconstants,
>-                         int width);
>-void I444ToARGBRow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb,
>+void I444ToARGBRow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void I422ToARGBRow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb,
>+void I422ToARGBRow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void I422ToRGBARow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb,
>+void I422ToRGBARow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void I422AlphaToARGBRow_Any_MSA(const uint8* src_y,
>-                                const uint8* src_u,
>-                                const uint8* src_v,
>-                                const uint8* src_a,
>-                                uint8* dst_argb,
>+void I422AlphaToARGBRow_Any_MSA(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                const uint8_t* a_buf,
>+                                uint8_t* dst_ptr,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width);
>-void I422ToRGB24Row_Any_MSA(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_rgb24,
>+void I422ToRGB24Row_Any_MSA(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>                             const struct YuvConstants* yuvconstants,
>                             int width);
>-void I422ToRGB565Row_Any_MSA(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_rgb565,
>+void I422ToRGB565Row_Any_MSA(const uint8_t* y_buf,
>+                             const uint8_t* u_buf,
>+                             const uint8_t* v_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void I422ToARGB4444Row_Any_MSA(const uint8* src_y,
>-                               const uint8* src_u,
>-                               const uint8* src_v,
>-                               uint8* dst_argb4444,
>+void I422ToARGB4444Row_Any_MSA(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_ptr,
>                                const struct YuvConstants* yuvconstants,
>                                int width);
>-void I422ToARGB1555Row_Any_MSA(const uint8* src_y,
>-                               const uint8* src_u,
>-                               const uint8* src_v,
>-                               uint8* dst_argb1555,
>+void I422ToARGB1555Row_Any_MSA(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_ptr,
>                                const struct YuvConstants* yuvconstants,
>                                int width);
>-void NV12ToARGBRow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_uv,
>-                           uint8* dst_argb,
>+void NV12ToARGBRow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* uv_buf,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void NV12ToRGB565Row_Any_MSA(const uint8* src_y,
>-                             const uint8* src_uv,
>-                             uint8* dst_argb,
>+void NV12ToRGB565Row_Any_MSA(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              const struct YuvConstants* yuvconstants,
>                              int width);
>-void NV21ToARGBRow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_vu,
>-                           uint8* dst_argb,
>+void NV21ToARGBRow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* uv_buf,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void YUY2ToARGBRow_Any_MSA(const uint8* src_yuy2,
>-                           uint8* dst_argb,
>+void YUY2ToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
>-void UYVYToARGBRow_Any_MSA(const uint8* src_uyvy,
>-                           uint8* dst_argb,
>+void UYVYToARGBRow_Any_MSA(const uint8_t* src_ptr,
>+                           uint8_t* dst_ptr,
>                            const struct YuvConstants* yuvconstants,
>                            int width);
> 
>-void YUY2ToYRow_AVX2(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_AVX2(const uint8* src_yuy2,
>+void YUY2ToYRow_AVX2(const uint8_t* src_yuy2, uint8_t* dst_y, int width);
>+void YUY2ToUVRow_AVX2(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void YUY2ToUV422Row_AVX2(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_AVX2(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void YUY2ToYRow_SSE2(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_SSE2(const uint8* src_yuy2,
>+void YUY2ToYRow_SSE2(const uint8_t* src_yuy2, uint8_t* dst_y, int width);
>+void YUY2ToUVRow_SSE2(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void YUY2ToUV422Row_SSE2(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_SSE2(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_NEON(const uint8* src_yuy2,
>+void YUY2ToYRow_NEON(const uint8_t* src_yuy2, uint8_t* dst_y, int width);
>+void YUY2ToUVRow_NEON(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void YUY2ToUV422Row_NEON(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void YUY2ToYRow_MSA(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_MSA(const uint8* src_yuy2,
>-                     int stride_yuy2,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void YUY2ToUV422Row_NEON(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void YUY2ToYRow_MSA(const uint8_t* src_yuy2, uint8_t* dst_y, int width);
>+void YUY2ToUVRow_MSA(const uint8_t* src_yuy2,
>+                     int src_stride_yuy2,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void YUY2ToUV422Row_MSA(const uint8* src_yuy2,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void YUY2ToUV422Row_MSA(const uint8_t* src_yuy2,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
>-void YUY2ToYRow_C(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_C(const uint8* src_yuy2,
>-                   int stride_yuy2,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void YUY2ToYRow_C(const uint8_t* src_yuy2, uint8_t* dst_y, int width);
>+void YUY2ToUVRow_C(const uint8_t* src_yuy2,
>+                   int src_stride_yuy2,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void YUY2ToUV422Row_C(const uint8* src_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void YUY2ToUV422Row_C(const uint8_t* src_yuy2,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void YUY2ToYRow_Any_AVX2(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_Any_AVX2(const uint8* src_yuy2,
>-                          int stride_yuy2,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void YUY2ToYRow_Any_AVX2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void YUY2ToUVRow_Any_AVX2(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void YUY2ToUV422Row_Any_AVX2(const uint8* src_yuy2,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void YUY2ToUV422Row_Any_AVX2(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void YUY2ToYRow_Any_SSE2(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_Any_SSE2(const uint8* src_yuy2,
>-                          int stride_yuy2,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void YUY2ToYRow_Any_SSE2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void YUY2ToUVRow_Any_SSE2(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void YUY2ToUV422Row_Any_SSE2(const uint8* src_yuy2,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void YUY2ToUV422Row_Any_SSE2(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void YUY2ToYRow_Any_NEON(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_Any_NEON(const uint8* src_yuy2,
>-                          int stride_yuy2,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void YUY2ToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void YUY2ToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void YUY2ToUV422Row_Any_NEON(const uint8* src_yuy2,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void YUY2ToUV422Row_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void YUY2ToYRow_Any_MSA(const uint8* src_yuy2, uint8* dst_y, int width);
>-void YUY2ToUVRow_Any_MSA(const uint8* src_yuy2,
>-                         int stride_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void YUY2ToUV422Row_Any_MSA(const uint8* src_yuy2,
>-                            uint8* dst_u,
>-                            uint8* dst_v,
>-                            int width);
>-void UYVYToYRow_AVX2(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_AVX2(const uint8* src_uyvy,
>+void YUY2ToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void YUY2ToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void YUY2ToUV422Row_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_u,
>+                            uint8_t* dst_v,
>+                            int width);
>+void UYVYToYRow_AVX2(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_AVX2(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void UYVYToUV422Row_AVX2(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_AVX2(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void UYVYToYRow_SSE2(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_SSE2(const uint8* src_uyvy,
>+void UYVYToYRow_SSE2(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_SSE2(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void UYVYToUV422Row_SSE2(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_SSE2(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void UYVYToYRow_AVX2(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_AVX2(const uint8* src_uyvy,
>+void UYVYToYRow_AVX2(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_AVX2(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void UYVYToUV422Row_AVX2(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_AVX2(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_NEON(const uint8* src_uyvy,
>+void UYVYToYRow_NEON(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_NEON(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void UYVYToUV422Row_NEON(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>-                         int width);
>-void UYVYToYRow_MSA(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_MSA(const uint8* src_uyvy,
>-                     int stride_uyvy,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void UYVYToUV422Row_NEON(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>+                         int width);
>+void UYVYToYRow_MSA(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_MSA(const uint8_t* src_uyvy,
>+                     int src_stride_uyvy,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width);
>-void UYVYToUV422Row_MSA(const uint8* src_uyvy,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void UYVYToUV422Row_MSA(const uint8_t* src_uyvy,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width);
> 
>-void UYVYToYRow_C(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_C(const uint8* src_uyvy,
>-                   int stride_uyvy,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+void UYVYToYRow_C(const uint8_t* src_uyvy, uint8_t* dst_y, int width);
>+void UYVYToUVRow_C(const uint8_t* src_uyvy,
>+                   int src_stride_uyvy,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width);
>-void UYVYToUV422Row_C(const uint8* src_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void UYVYToUV422Row_C(const uint8_t* src_uyvy,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width);
>-void UYVYToYRow_Any_AVX2(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_Any_AVX2(const uint8* src_uyvy,
>-                          int stride_uyvy,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void UYVYToYRow_Any_AVX2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void UYVYToUVRow_Any_AVX2(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void UYVYToUV422Row_Any_AVX2(const uint8* src_uyvy,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void UYVYToUV422Row_Any_AVX2(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void UYVYToYRow_Any_SSE2(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_Any_SSE2(const uint8* src_uyvy,
>-                          int stride_uyvy,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void UYVYToYRow_Any_SSE2(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void UYVYToUVRow_Any_SSE2(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void UYVYToUV422Row_Any_SSE2(const uint8* src_uyvy,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void UYVYToUV422Row_Any_SSE2(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void UYVYToYRow_Any_NEON(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_Any_NEON(const uint8* src_uyvy,
>-                          int stride_uyvy,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void UYVYToYRow_Any_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void UYVYToUVRow_Any_NEON(const uint8_t* src_ptr,
>+                          int src_stride_ptr,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width);
>-void UYVYToUV422Row_Any_NEON(const uint8* src_uyvy,
>-                             uint8* dst_u,
>-                             uint8* dst_v,
>+void UYVYToUV422Row_Any_NEON(const uint8_t* src_ptr,
>+                             uint8_t* dst_u,
>+                             uint8_t* dst_v,
>                              int width);
>-void UYVYToYRow_Any_MSA(const uint8* src_uyvy, uint8* dst_y, int width);
>-void UYVYToUVRow_Any_MSA(const uint8* src_uyvy,
>-                         int stride_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToYRow_Any_MSA(const uint8_t* src_ptr, uint8_t* dst_ptr, int width);
>+void UYVYToUVRow_Any_MSA(const uint8_t* src_ptr,
>+                         int src_stride_ptr,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width);
>-void UYVYToUV422Row_Any_MSA(const uint8* src_uyvy,
>-                            uint8* dst_u,
>-                            uint8* dst_v,
>+void UYVYToUV422Row_Any_MSA(const uint8_t* src_ptr,
>+                            uint8_t* dst_u,
>+                            uint8_t* dst_v,
>                             int width);
> 
>-void I422ToYUY2Row_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_yuy2,
>+void I422ToYUY2Row_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_frame,
>                      int width);
>-void I422ToUYVYRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uyvy,
>+void I422ToUYVYRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_frame,
>                      int width);
>-void I422ToYUY2Row_SSE2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_yuy2,
>+void I422ToYUY2Row_SSE2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>                         int width);
>-void I422ToUYVYRow_SSE2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_uyvy,
>+void I422ToUYVYRow_SSE2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>                         int width);
>-void I422ToYUY2Row_Any_SSE2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_yuy2,
>-                            int width);
>-void I422ToUYVYRow_Any_SSE2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_uyvy,
>-                            int width);
>-void I422ToYUY2Row_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_yuy2,
>+void I422ToYUY2Row_Any_SSE2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToUYVYRow_Any_SSE2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToYUY2Row_AVX2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>+                        int width);
>+void I422ToUYVYRow_AVX2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>+                        int width);
>+void I422ToYUY2Row_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToUYVYRow_Any_AVX2(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToYUY2Row_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>                         int width);
>-void I422ToUYVYRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_uyvy,
>+void I422ToUYVYRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>                         int width);
>-void I422ToYUY2Row_Any_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_yuy2,
>-                            int width);
>-void I422ToUYVYRow_Any_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_uyvy,
>-                            int width);
>-void I422ToYUY2Row_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_yuy2,
>+void I422ToYUY2Row_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToUYVYRow_Any_NEON(const uint8_t* y_buf,
>+                            const uint8_t* u_buf,
>+                            const uint8_t* v_buf,
>+                            uint8_t* dst_ptr,
>+                            int width);
>+void I422ToYUY2Row_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_yuy2,
>                        int width);
>-void I422ToUYVYRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_uyvy,
>+void I422ToUYVYRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_uyvy,
>                        int width);
>-void I422ToYUY2Row_Any_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_yuy2,
>+void I422ToYUY2Row_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            int width);
>-void I422ToUYVYRow_Any_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_uyvy,
>+void I422ToUYVYRow_Any_MSA(const uint8_t* y_buf,
>+                           const uint8_t* u_buf,
>+                           const uint8_t* v_buf,
>+                           uint8_t* dst_ptr,
>                            int width);
> 
> // Effects related row functions.
>-void ARGBAttenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBAttenuateRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBAttenuateRow_AVX2(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBAttenuateRow_MSA(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBAttenuateRow_Any_SSE2(const uint8* src_argb,
>-                               uint8* dst_argb,
>-                               int width);
>-void ARGBAttenuateRow_Any_SSSE3(const uint8* src_argb,
>-                                uint8* dst_argb,
>+void ARGBAttenuateRow_C(const uint8_t* src_argb, uint8_t* dst_argb, int width);
>+void ARGBAttenuateRow_SSSE3(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>+                            int width);
>+void ARGBAttenuateRow_AVX2(const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>+                           int width);
>+void ARGBAttenuateRow_NEON(const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>+                           int width);
>+void ARGBAttenuateRow_MSA(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          int width);
>+void ARGBAttenuateRow_Any_SSSE3(const uint8_t* src_ptr,
>+                                uint8_t* dst_ptr,
>                                 int width);
>-void ARGBAttenuateRow_Any_AVX2(const uint8* src_argb,
>-                               uint8* dst_argb,
>+void ARGBAttenuateRow_Any_AVX2(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
>-void ARGBAttenuateRow_Any_NEON(const uint8* src_argb,
>-                               uint8* dst_argb,
>+void ARGBAttenuateRow_Any_NEON(const uint8_t* src_ptr,
>+                               uint8_t* dst_ptr,
>                                int width);
>-void ARGBAttenuateRow_Any_MSA(const uint8* src_argb,
>-                              uint8* dst_argb,
>+void ARGBAttenuateRow_Any_MSA(const uint8_t* src_ptr,
>+                              uint8_t* dst_ptr,
>                               int width);
> 
> // Inverse table for unattenuate, shared by C and SSE2.
>-extern const uint32 fixed_invtbl8[256];
>-void ARGBUnattenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBUnattenuateRow_SSE2(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBUnattenuateRow_AVX2(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBUnattenuateRow_Any_SSE2(const uint8* src_argb,
>-                                 uint8* dst_argb,
>+extern const uint32_t fixed_invtbl8[256];
>+void ARGBUnattenuateRow_C(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          int width);
>+void ARGBUnattenuateRow_SSE2(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>+                             int width);
>+void ARGBUnattenuateRow_AVX2(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>+                             int width);
>+void ARGBUnattenuateRow_Any_SSE2(const uint8_t* src_ptr,
>+                                 uint8_t* dst_ptr,
>                                  int width);
>-void ARGBUnattenuateRow_Any_AVX2(const uint8* src_argb,
>-                                 uint8* dst_argb,
>+void ARGBUnattenuateRow_Any_AVX2(const uint8_t* src_ptr,
>+                                 uint8_t* dst_ptr,
>                                  int width);
> 
>-void ARGBGrayRow_C(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBGrayRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width);
>-void ARGBGrayRow_MSA(const uint8* src_argb, uint8* dst_argb, int width);
>+void ARGBGrayRow_C(const uint8_t* src_argb, uint8_t* dst_argb, int width);
>+void ARGBGrayRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_argb, int width);
>+void ARGBGrayRow_NEON(const uint8_t* src_argb, uint8_t* dst_argb, int width);
>+void ARGBGrayRow_MSA(const uint8_t* src_argb, uint8_t* dst_argb, int width);
> 
>-void ARGBSepiaRow_C(uint8* dst_argb, int width);
>-void ARGBSepiaRow_SSSE3(uint8* dst_argb, int width);
>-void ARGBSepiaRow_NEON(uint8* dst_argb, int width);
>-void ARGBSepiaRow_MSA(uint8* dst_argb, int width);
>+void ARGBSepiaRow_C(uint8_t* dst_argb, int width);
>+void ARGBSepiaRow_SSSE3(uint8_t* dst_argb, int width);
>+void ARGBSepiaRow_NEON(uint8_t* dst_argb, int width);
>+void ARGBSepiaRow_MSA(uint8_t* dst_argb, int width);
> 
>-void ARGBColorMatrixRow_C(const uint8* src_argb,
>-                          uint8* dst_argb,
>-                          const int8* matrix_argb,
>+void ARGBColorMatrixRow_C(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          const int8_t* matrix_argb,
>                           int width);
>-void ARGBColorMatrixRow_SSSE3(const uint8* src_argb,
>-                              uint8* dst_argb,
>-                              const int8* matrix_argb,
>+void ARGBColorMatrixRow_SSSE3(const uint8_t* src_argb,
>+                              uint8_t* dst_argb,
>+                              const int8_t* matrix_argb,
>                               int width);
>-void ARGBColorMatrixRow_NEON(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const int8* matrix_argb,
>+void ARGBColorMatrixRow_NEON(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>+                             const int8_t* matrix_argb,
>                              int width);
>-void ARGBColorMatrixRow_MSA(const uint8* src_argb,
>-                            uint8* dst_argb,
>-                            const int8* matrix_argb,
>+void ARGBColorMatrixRow_MSA(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>+                            const int8_t* matrix_argb,
>                             int width);
> 
>-void ARGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width);
>-void ARGBColorTableRow_X86(uint8* dst_argb, const uint8* table_argb, int width);
>+void ARGBColorTableRow_C(uint8_t* dst_argb,
>+                         const uint8_t* table_argb,
>+                         int width);
>+void ARGBColorTableRow_X86(uint8_t* dst_argb,
>+                           const uint8_t* table_argb,
>+                           int width);
> 
>-void RGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width);
>-void RGBColorTableRow_X86(uint8* dst_argb, const uint8* table_argb, int width);
>+void RGBColorTableRow_C(uint8_t* dst_argb,
>+                        const uint8_t* table_argb,
>+                        int width);
>+void RGBColorTableRow_X86(uint8_t* dst_argb,
>+                          const uint8_t* table_argb,
>+                          int width);
> 
>-void ARGBQuantizeRow_C(uint8* dst_argb,
>+void ARGBQuantizeRow_C(uint8_t* dst_argb,
>                        int scale,
>                        int interval_size,
>                        int interval_offset,
>                        int width);
>-void ARGBQuantizeRow_SSE2(uint8* dst_argb,
>+void ARGBQuantizeRow_SSE2(uint8_t* dst_argb,
>                           int scale,
>                           int interval_size,
>                           int interval_offset,
>                           int width);
>-void ARGBQuantizeRow_NEON(uint8* dst_argb,
>+void ARGBQuantizeRow_NEON(uint8_t* dst_argb,
>                           int scale,
>                           int interval_size,
>                           int interval_offset,
>                           int width);
>-void ARGBQuantizeRow_MSA(uint8* dst_argb,
>+void ARGBQuantizeRow_MSA(uint8_t* dst_argb,
>                          int scale,
>                          int interval_size,
>                          int interval_offset,
>                          int width);
> 
>-void ARGBShadeRow_C(const uint8* src_argb,
>-                    uint8* dst_argb,
>+void ARGBShadeRow_C(const uint8_t* src_argb,
>+                    uint8_t* dst_argb,
>                     int width,
>-                    uint32 value);
>-void ARGBShadeRow_SSE2(const uint8* src_argb,
>-                       uint8* dst_argb,
>+                    uint32_t value);
>+void ARGBShadeRow_SSE2(const uint8_t* src_argb,
>+                       uint8_t* dst_argb,
>                        int width,
>-                       uint32 value);
>-void ARGBShadeRow_NEON(const uint8* src_argb,
>-                       uint8* dst_argb,
>+                       uint32_t value);
>+void ARGBShadeRow_NEON(const uint8_t* src_argb,
>+                       uint8_t* dst_argb,
>                        int width,
>-                       uint32 value);
>-void ARGBShadeRow_MSA(const uint8* src_argb,
>-                      uint8* dst_argb,
>+                       uint32_t value);
>+void ARGBShadeRow_MSA(const uint8_t* src_argb,
>+                      uint8_t* dst_argb,
>                       int width,
>-                      uint32 value);
>+                      uint32_t value);
> 
> // Used for blur.
>-void CumulativeSumToAverageRow_SSE2(const int32* topleft,
>-                                    const int32* botleft,
>+void CumulativeSumToAverageRow_SSE2(const int32_t* topleft,
>+                                    const int32_t* botleft,
>                                     int width,
>                                     int area,
>-                                    uint8* dst,
>+                                    uint8_t* dst,
>                                     int count);
>-void ComputeCumulativeSumRow_SSE2(const uint8* row,
>-                                  int32* cumsum,
>-                                  const int32* previous_cumsum,
>+void ComputeCumulativeSumRow_SSE2(const uint8_t* row,
>+                                  int32_t* cumsum,
>+                                  const int32_t* previous_cumsum,
>                                   int width);
> 
>-void CumulativeSumToAverageRow_C(const int32* topleft,
>-                                 const int32* botleft,
>-                                 int width,
>+void CumulativeSumToAverageRow_C(const int32_t* tl,
>+                                 const int32_t* bl,
>+                                 int w,
>                                  int area,
>-                                 uint8* dst,
>+                                 uint8_t* dst,
>                                  int count);
>-void ComputeCumulativeSumRow_C(const uint8* row,
>-                               int32* cumsum,
>-                               const int32* previous_cumsum,
>+void ComputeCumulativeSumRow_C(const uint8_t* row,
>+                               int32_t* cumsum,
>+                               const int32_t* previous_cumsum,
>                                int width);
> 
> LIBYUV_API
>-void ARGBAffineRow_C(const uint8* src_argb,
>+void ARGBAffineRow_C(const uint8_t* src_argb,
>                      int src_argb_stride,
>-                     uint8* dst_argb,
>+                     uint8_t* dst_argb,
>                      const float* uv_dudv,
>                      int width);
> LIBYUV_API
>-void ARGBAffineRow_SSE2(const uint8* src_argb,
>+void ARGBAffineRow_SSE2(const uint8_t* src_argb,
>                         int src_argb_stride,
>-                        uint8* dst_argb,
>-                        const float* uv_dudv,
>+                        uint8_t* dst_argb,
>+                        const float* src_dudv,
>                         int width);
> 
> // Used for I420Scale, ARGBScale, and ARGBInterpolate.
>-void InterpolateRow_C(uint8* dst_ptr,
>-                      const uint8* src_ptr,
>-                      ptrdiff_t src_stride_ptr,
>+void InterpolateRow_C(uint8_t* dst_ptr,
>+                      const uint8_t* src_ptr,
>+                      ptrdiff_t src_stride,
>                       int width,
>                       int source_y_fraction);
>-void InterpolateRow_SSSE3(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>-                          ptrdiff_t src_stride_ptr,
>-                          int width,
>+void InterpolateRow_SSSE3(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>+                          ptrdiff_t src_stride,
>+                          int dst_width,
>                           int source_y_fraction);
>-void InterpolateRow_AVX2(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>-                         ptrdiff_t src_stride_ptr,
>-                         int width,
>+void InterpolateRow_AVX2(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>+                         ptrdiff_t src_stride,
>+                         int dst_width,
>                          int source_y_fraction);
>-void InterpolateRow_NEON(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>-                         ptrdiff_t src_stride_ptr,
>-                         int width,
>+void InterpolateRow_NEON(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>+                         ptrdiff_t src_stride,
>+                         int dst_width,
>                          int source_y_fraction);
>-void InterpolateRow_DSPR2(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>-                          ptrdiff_t src_stride_ptr,
>-                          int width,
>-                          int source_y_fraction);
>-void InterpolateRow_MSA(uint8* dst_ptr,
>-                        const uint8* src_ptr,
>-                        ptrdiff_t src_stride_ptr,
>+void InterpolateRow_MSA(uint8_t* dst_ptr,
>+                        const uint8_t* src_ptr,
>+                        ptrdiff_t src_stride,
>                         int width,
>                         int source_y_fraction);
>-void InterpolateRow_Any_NEON(uint8* dst_ptr,
>-                             const uint8* src_ptr,
>+void InterpolateRow_Any_NEON(uint8_t* dst_ptr,
>+                             const uint8_t* src_ptr,
>                              ptrdiff_t src_stride_ptr,
>                              int width,
>                              int source_y_fraction);
>-void InterpolateRow_Any_SSSE3(uint8* dst_ptr,
>-                              const uint8* src_ptr,
>+void InterpolateRow_Any_SSSE3(uint8_t* dst_ptr,
>+                              const uint8_t* src_ptr,
>                               ptrdiff_t src_stride_ptr,
>                               int width,
>                               int source_y_fraction);
>-void InterpolateRow_Any_AVX2(uint8* dst_ptr,
>-                             const uint8* src_ptr,
>+void InterpolateRow_Any_AVX2(uint8_t* dst_ptr,
>+                             const uint8_t* src_ptr,
>                              ptrdiff_t src_stride_ptr,
>                              int width,
>                              int source_y_fraction);
>-void InterpolateRow_Any_DSPR2(uint8* dst_ptr,
>-                              const uint8* src_ptr,
>-                              ptrdiff_t src_stride_ptr,
>-                              int width,
>-                              int source_y_fraction);
>-void InterpolateRow_Any_MSA(uint8* dst_ptr,
>-                            const uint8* src_ptr,
>+void InterpolateRow_Any_MSA(uint8_t* dst_ptr,
>+                            const uint8_t* src_ptr,
>                             ptrdiff_t src_stride_ptr,
>                             int width,
>                             int source_y_fraction);
> 
>-void InterpolateRow_16_C(uint16* dst_ptr,
>-                         const uint16* src_ptr,
>-                         ptrdiff_t src_stride_ptr,
>+void InterpolateRow_16_C(uint16_t* dst_ptr,
>+                         const uint16_t* src_ptr,
>+                         ptrdiff_t src_stride,
>                          int width,
>                          int source_y_fraction);
> 
> // Sobel images.
>-void SobelXRow_C(const uint8* src_y0,
>-                 const uint8* src_y1,
>-                 const uint8* src_y2,
>-                 uint8* dst_sobelx,
>+void SobelXRow_C(const uint8_t* src_y0,
>+                 const uint8_t* src_y1,
>+                 const uint8_t* src_y2,
>+                 uint8_t* dst_sobelx,
>                  int width);
>-void SobelXRow_SSE2(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    const uint8* src_y2,
>-                    uint8* dst_sobelx,
>+void SobelXRow_SSE2(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    const uint8_t* src_y2,
>+                    uint8_t* dst_sobelx,
>                     int width);
>-void SobelXRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    const uint8* src_y2,
>-                    uint8* dst_sobelx,
>+void SobelXRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    const uint8_t* src_y2,
>+                    uint8_t* dst_sobelx,
>                     int width);
>-void SobelXRow_MSA(const uint8* src_y0,
>-                   const uint8* src_y1,
>-                   const uint8* src_y2,
>-                   uint8* dst_sobelx,
>+void SobelXRow_MSA(const uint8_t* src_y0,
>+                   const uint8_t* src_y1,
>+                   const uint8_t* src_y2,
>+                   uint8_t* dst_sobelx,
>                    int width);
>-void SobelYRow_C(const uint8* src_y0,
>-                 const uint8* src_y1,
>-                 uint8* dst_sobely,
>+void SobelYRow_C(const uint8_t* src_y0,
>+                 const uint8_t* src_y1,
>+                 uint8_t* dst_sobely,
>                  int width);
>-void SobelYRow_SSE2(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    uint8* dst_sobely,
>+void SobelYRow_SSE2(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    uint8_t* dst_sobely,
>                     int width);
>-void SobelYRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    uint8* dst_sobely,
>+void SobelYRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    uint8_t* dst_sobely,
>                     int width);
>-void SobelYRow_MSA(const uint8* src_y0,
>-                   const uint8* src_y1,
>-                   uint8* dst_sobely,
>+void SobelYRow_MSA(const uint8_t* src_y0,
>+                   const uint8_t* src_y1,
>+                   uint8_t* dst_sobely,
>                    int width);
>-void SobelRow_C(const uint8* src_sobelx,
>-                const uint8* src_sobely,
>-                uint8* dst_argb,
>+void SobelRow_C(const uint8_t* src_sobelx,
>+                const uint8_t* src_sobely,
>+                uint8_t* dst_argb,
>                 int width);
>-void SobelRow_SSE2(const uint8* src_sobelx,
>-                   const uint8* src_sobely,
>-                   uint8* dst_argb,
>+void SobelRow_SSE2(const uint8_t* src_sobelx,
>+                   const uint8_t* src_sobely,
>+                   uint8_t* dst_argb,
>                    int width);
>-void SobelRow_NEON(const uint8* src_sobelx,
>-                   const uint8* src_sobely,
>-                   uint8* dst_argb,
>+void SobelRow_NEON(const uint8_t* src_sobelx,
>+                   const uint8_t* src_sobely,
>+                   uint8_t* dst_argb,
>                    int width);
>-void SobelRow_MSA(const uint8* src_sobelx,
>-                  const uint8* src_sobely,
>-                  uint8* dst_argb,
>+void SobelRow_MSA(const uint8_t* src_sobelx,
>+                  const uint8_t* src_sobely,
>+                  uint8_t* dst_argb,
>                   int width);
>-void SobelToPlaneRow_C(const uint8* src_sobelx,
>-                       const uint8* src_sobely,
>-                       uint8* dst_y,
>+void SobelToPlaneRow_C(const uint8_t* src_sobelx,
>+                       const uint8_t* src_sobely,
>+                       uint8_t* dst_y,
>                        int width);
>-void SobelToPlaneRow_SSE2(const uint8* src_sobelx,
>-                          const uint8* src_sobely,
>-                          uint8* dst_y,
>+void SobelToPlaneRow_SSE2(const uint8_t* src_sobelx,
>+                          const uint8_t* src_sobely,
>+                          uint8_t* dst_y,
>                           int width);
>-void SobelToPlaneRow_NEON(const uint8* src_sobelx,
>-                          const uint8* src_sobely,
>-                          uint8* dst_y,
>+void SobelToPlaneRow_NEON(const uint8_t* src_sobelx,
>+                          const uint8_t* src_sobely,
>+                          uint8_t* dst_y,
>                           int width);
>-void SobelToPlaneRow_MSA(const uint8* src_sobelx,
>-                         const uint8* src_sobely,
>-                         uint8* dst_y,
>+void SobelToPlaneRow_MSA(const uint8_t* src_sobelx,
>+                         const uint8_t* src_sobely,
>+                         uint8_t* dst_y,
>                          int width);
>-void SobelXYRow_C(const uint8* src_sobelx,
>-                  const uint8* src_sobely,
>-                  uint8* dst_argb,
>+void SobelXYRow_C(const uint8_t* src_sobelx,
>+                  const uint8_t* src_sobely,
>+                  uint8_t* dst_argb,
>                   int width);
>-void SobelXYRow_SSE2(const uint8* src_sobelx,
>-                     const uint8* src_sobely,
>-                     uint8* dst_argb,
>+void SobelXYRow_SSE2(const uint8_t* src_sobelx,
>+                     const uint8_t* src_sobely,
>+                     uint8_t* dst_argb,
>                      int width);
>-void SobelXYRow_NEON(const uint8* src_sobelx,
>-                     const uint8* src_sobely,
>-                     uint8* dst_argb,
>+void SobelXYRow_NEON(const uint8_t* src_sobelx,
>+                     const uint8_t* src_sobely,
>+                     uint8_t* dst_argb,
>                      int width);
>-void SobelXYRow_MSA(const uint8* src_sobelx,
>-                    const uint8* src_sobely,
>-                    uint8* dst_argb,
>+void SobelXYRow_MSA(const uint8_t* src_sobelx,
>+                    const uint8_t* src_sobely,
>+                    uint8_t* dst_argb,
>                     int width);
>-void SobelRow_Any_SSE2(const uint8* src_sobelx,
>-                       const uint8* src_sobely,
>-                       uint8* dst_argb,
>+void SobelRow_Any_SSE2(const uint8_t* y_buf,
>+                       const uint8_t* uv_buf,
>+                       uint8_t* dst_ptr,
>                        int width);
>-void SobelRow_Any_NEON(const uint8* src_sobelx,
>-                       const uint8* src_sobely,
>-                       uint8* dst_argb,
>+void SobelRow_Any_NEON(const uint8_t* y_buf,
>+                       const uint8_t* uv_buf,
>+                       uint8_t* dst_ptr,
>                        int width);
>-void SobelRow_Any_MSA(const uint8* src_sobelx,
>-                      const uint8* src_sobely,
>-                      uint8* dst_argb,
>+void SobelRow_Any_MSA(const uint8_t* y_buf,
>+                      const uint8_t* uv_buf,
>+                      uint8_t* dst_ptr,
>                       int width);
>-void SobelToPlaneRow_Any_SSE2(const uint8* src_sobelx,
>-                              const uint8* src_sobely,
>-                              uint8* dst_y,
>+void SobelToPlaneRow_Any_SSE2(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void SobelToPlaneRow_Any_NEON(const uint8* src_sobelx,
>-                              const uint8* src_sobely,
>-                              uint8* dst_y,
>+void SobelToPlaneRow_Any_NEON(const uint8_t* y_buf,
>+                              const uint8_t* uv_buf,
>+                              uint8_t* dst_ptr,
>                               int width);
>-void SobelToPlaneRow_Any_MSA(const uint8* src_sobelx,
>-                             const uint8* src_sobely,
>-                             uint8* dst_y,
>+void SobelToPlaneRow_Any_MSA(const uint8_t* y_buf,
>+                             const uint8_t* uv_buf,
>+                             uint8_t* dst_ptr,
>                              int width);
>-void SobelXYRow_Any_SSE2(const uint8* src_sobelx,
>-                         const uint8* src_sobely,
>-                         uint8* dst_argb,
>+void SobelXYRow_Any_SSE2(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void SobelXYRow_Any_NEON(const uint8* src_sobelx,
>-                         const uint8* src_sobely,
>-                         uint8* dst_argb,
>+void SobelXYRow_Any_NEON(const uint8_t* y_buf,
>+                         const uint8_t* uv_buf,
>+                         uint8_t* dst_ptr,
>                          int width);
>-void SobelXYRow_Any_MSA(const uint8* src_sobelx,
>-                        const uint8* src_sobely,
>-                        uint8* dst_argb,
>+void SobelXYRow_Any_MSA(const uint8_t* y_buf,
>+                        const uint8_t* uv_buf,
>+                        uint8_t* dst_ptr,
>                         int width);
> 
>-void ARGBPolynomialRow_C(const uint8* src_argb,
>-                         uint8* dst_argb,
>+void ARGBPolynomialRow_C(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>                          const float* poly,
>                          int width);
>-void ARGBPolynomialRow_SSE2(const uint8* src_argb,
>-                            uint8* dst_argb,
>+void ARGBPolynomialRow_SSE2(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>                             const float* poly,
>                             int width);
>-void ARGBPolynomialRow_AVX2(const uint8* src_argb,
>-                            uint8* dst_argb,
>+void ARGBPolynomialRow_AVX2(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>                             const float* poly,
>                             int width);
> 
> // Scale and convert to half float.
>-void HalfFloatRow_C(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_SSE2(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_Any_SSE2(const uint16* src,
>-                           uint16* dst,
>-                           float scale,
>+void HalfFloatRow_C(const uint16_t* src, uint16_t* dst, float scale, int width);
>+void HalfFloatRow_SSE2(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width);
>+void HalfFloatRow_Any_SSE2(const uint16_t* src_ptr,
>+                           uint16_t* dst_ptr,
>+                           float param,
>                            int width);
>-void HalfFloatRow_AVX2(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_Any_AVX2(const uint16* src,
>-                           uint16* dst,
>-                           float scale,
>+void HalfFloatRow_AVX2(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width);
>+void HalfFloatRow_Any_AVX2(const uint16_t* src_ptr,
>+                           uint16_t* dst_ptr,
>+                           float param,
>                            int width);
>-void HalfFloatRow_F16C(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_Any_F16C(const uint16* src,
>-                           uint16* dst,
>+void HalfFloatRow_F16C(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width);
>+void HalfFloatRow_Any_F16C(const uint16_t* src,
>+                           uint16_t* dst,
>                            float scale,
>                            int width);
>-void HalfFloat1Row_F16C(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloat1Row_Any_F16C(const uint16* src,
>-                            uint16* dst,
>+void HalfFloat1Row_F16C(const uint16_t* src,
>+                        uint16_t* dst,
>+                        float scale,
>+                        int width);
>+void HalfFloat1Row_Any_F16C(const uint16_t* src,
>+                            uint16_t* dst,
>                             float scale,
>                             int width);
>-void HalfFloatRow_NEON(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_Any_NEON(const uint16* src,
>-                           uint16* dst,
>-                           float scale,
>+void HalfFloatRow_NEON(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width);
>+void HalfFloatRow_Any_NEON(const uint16_t* src_ptr,
>+                           uint16_t* dst_ptr,
>+                           float param,
>                            int width);
>-void HalfFloat1Row_NEON(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloat1Row_Any_NEON(const uint16* src,
>-                            uint16* dst,
>-                            float scale,
>+void HalfFloat1Row_NEON(const uint16_t* src,
>+                        uint16_t* dst,
>+                        float scale,
>+                        int width);
>+void HalfFloat1Row_Any_NEON(const uint16_t* src_ptr,
>+                            uint16_t* dst_ptr,
>+                            float param,
>                             int width);
>-void HalfFloatRow_MSA(const uint16* src, uint16* dst, float scale, int width);
>-void HalfFloatRow_Any_MSA(const uint16* src,
>-                          uint16* dst,
>-                          float scale,
>+void HalfFloatRow_MSA(const uint16_t* src,
>+                      uint16_t* dst,
>+                      float scale,
>+                      int width);
>+void HalfFloatRow_Any_MSA(const uint16_t* src_ptr,
>+                          uint16_t* dst_ptr,
>+                          float param,
>                           int width);
>+void ByteToFloatRow_C(const uint8_t* src, float* dst, float scale, int width);
>+void ByteToFloatRow_NEON(const uint8_t* src,
>+                         float* dst,
>+                         float scale,
>+                         int width);
>+void ByteToFloatRow_Any_NEON(const uint8_t* src,
>+                             float* dst,
>+                             float scale,
>+                             int width);
> 
>-void ARGBLumaColorTableRow_C(const uint8* src_argb,
>-                             uint8* dst_argb,
>+void ARGBLumaColorTableRow_C(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>                              int width,
>-                             const uint8* luma,
>-                             uint32 lumacoeff);
>-void ARGBLumaColorTableRow_SSSE3(const uint8* src_argb,
>-                                 uint8* dst_argb,
>+                             const uint8_t* luma,
>+                             uint32_t lumacoeff);
>+void ARGBLumaColorTableRow_SSSE3(const uint8_t* src_argb,
>+                                 uint8_t* dst_argb,
>                                  int width,
>-                                 const uint8* luma,
>-                                 uint32 lumacoeff);
>+                                 const uint8_t* luma,
>+                                 uint32_t lumacoeff);
> 
> float ScaleMaxSamples_C(const float* src, float* dst, float scale, int width);
> float ScaleMaxSamples_NEON(const float* src,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale.h
>index 6d6b9a8583ad243987213d28054c59e290db53b4..b937d348cabcddc0ae899db859ec8be13f07ff27 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale.h
>@@ -28,22 +28,22 @@ typedef enum FilterMode {
> 
> // Scale a YUV plane.
> LIBYUV_API
>-void ScalePlane(const uint8* src,
>+void ScalePlane(const uint8_t* src,
>                 int src_stride,
>                 int src_width,
>                 int src_height,
>-                uint8* dst,
>+                uint8_t* dst,
>                 int dst_stride,
>                 int dst_width,
>                 int dst_height,
>                 enum FilterMode filtering);
> 
> LIBYUV_API
>-void ScalePlane_16(const uint16* src,
>+void ScalePlane_16(const uint16_t* src,
>                    int src_stride,
>                    int src_width,
>                    int src_height,
>-                   uint16* dst,
>+                   uint16_t* dst,
>                    int dst_stride,
>                    int dst_width,
>                    int dst_height,
>@@ -60,38 +60,38 @@ void ScalePlane_16(const uint16* src,
> // Returns 0 if successful.
> 
> LIBYUV_API
>-int I420Scale(const uint8* src_y,
>+int I420Scale(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>               int src_width,
>               int src_height,
>-              uint8* dst_y,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int dst_width,
>               int dst_height,
>               enum FilterMode filtering);
> 
> LIBYUV_API
>-int I420Scale_16(const uint16* src_y,
>+int I420Scale_16(const uint16_t* src_y,
>                  int src_stride_y,
>-                 const uint16* src_u,
>+                 const uint16_t* src_u,
>                  int src_stride_u,
>-                 const uint16* src_v,
>+                 const uint16_t* src_v,
>                  int src_stride_v,
>                  int src_width,
>                  int src_height,
>-                 uint16* dst_y,
>+                 uint16_t* dst_y,
>                  int dst_stride_y,
>-                 uint16* dst_u,
>+                 uint16_t* dst_u,
>                  int dst_stride_u,
>-                 uint16* dst_v,
>+                 uint16_t* dst_v,
>                  int dst_stride_v,
>                  int dst_width,
>                  int dst_height,
>@@ -100,17 +100,17 @@ int I420Scale_16(const uint16* src_y,
> #ifdef __cplusplus
> // Legacy API.  Deprecated.
> LIBYUV_API
>-int Scale(const uint8* src_y,
>-          const uint8* src_u,
>-          const uint8* src_v,
>+int Scale(const uint8_t* src_y,
>+          const uint8_t* src_u,
>+          const uint8_t* src_v,
>           int src_stride_y,
>           int src_stride_u,
>           int src_stride_v,
>           int src_width,
>           int src_height,
>-          uint8* dst_y,
>-          uint8* dst_u,
>-          uint8* dst_v,
>+          uint8_t* dst_y,
>+          uint8_t* dst_u,
>+          uint8_t* dst_v,
>           int dst_stride_y,
>           int dst_stride_u,
>           int dst_stride_v,
>@@ -118,17 +118,6 @@ int Scale(const uint8* src_y,
>           int dst_height,
>           LIBYUV_BOOL interpolate);
> 
>-// Legacy API.  Deprecated.
>-LIBYUV_API
>-int ScaleOffset(const uint8* src_i420,
>-                int src_width,
>-                int src_height,
>-                uint8* dst_i420,
>-                int dst_width,
>-                int dst_height,
>-                int dst_yoffset,
>-                LIBYUV_BOOL interpolate);
>-
> // For testing, allow disabling of specialized scalers.
> LIBYUV_API
> void SetUseReferenceImpl(LIBYUV_BOOL use);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_argb.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_argb.h
>index 3d25e579cde244601f75b91c83049fda49a8397e..7641f18e3416b869172a2f2d46b07ce5d68ecad6 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_argb.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_argb.h
>@@ -20,11 +20,11 @@ extern "C" {
> #endif
> 
> LIBYUV_API
>-int ARGBScale(const uint8* src_argb,
>+int ARGBScale(const uint8_t* src_argb,
>               int src_stride_argb,
>               int src_width,
>               int src_height,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int dst_width,
>               int dst_height,
>@@ -32,11 +32,11 @@ int ARGBScale(const uint8* src_argb,
> 
> // Clipped scale takes destination rectangle coordinates for clip values.
> LIBYUV_API
>-int ARGBScaleClip(const uint8* src_argb,
>+int ARGBScaleClip(const uint8_t* src_argb,
>                   int src_stride_argb,
>                   int src_width,
>                   int src_height,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int dst_width,
>                   int dst_height,
>@@ -48,18 +48,18 @@ int ARGBScaleClip(const uint8* src_argb,
> 
> // Scale with YUV conversion to ARGB and clipping.
> LIBYUV_API
>-int YUVToARGBScaleClip(const uint8* src_y,
>+int YUVToARGBScaleClip(const uint8_t* src_y,
>                        int src_stride_y,
>-                       const uint8* src_u,
>+                       const uint8_t* src_u,
>                        int src_stride_u,
>-                       const uint8* src_v,
>+                       const uint8_t* src_v,
>                        int src_stride_v,
>-                       uint32 src_fourcc,
>+                       uint32_t src_fourcc,
>                        int src_width,
>                        int src_height,
>-                       uint8* dst_argb,
>+                       uint8_t* dst_argb,
>                        int dst_stride_argb,
>-                       uint32 dst_fourcc,
>+                       uint32_t dst_fourcc,
>                        int dst_width,
>                        int dst_height,
>                        int clip_x,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_row.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_row.h
>index c4a66aa07b10e319970cb4b6889873c6a7d8b988..7194ba09f842ba7ffb5b295b06977ddf91237e31 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_row.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/scale_row.h
>@@ -19,17 +19,20 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-#if defined(__pnacl__) || defined(__CLR_VER) || \
>+#if defined(__pnacl__) || defined(__CLR_VER) ||            \
>+    (defined(__native_client__) && defined(__x86_64__)) || \
>     (defined(__i386__) && !defined(__SSE__) && !defined(__clang__))
> #define LIBYUV_DISABLE_X86
> #endif
>+#if defined(__native_client__)
>+#define LIBYUV_DISABLE_NEON
>+#endif
> // MemorySanitizer does not support assembly code yet. http://crbug.com/344505
> #if defined(__has_feature)
> #if __has_feature(memory_sanitizer)
> #define LIBYUV_DISABLE_X86
> #endif
> #endif
>-
> // GCC >= 4.7.0 required for AVX2.
> #if defined(__GNUC__) && (defined(__x86_64__) || defined(__i386__))
> #if (__GNUC__ > 4) || (__GNUC__ == 4 && (__GNUC_MINOR__ >= 7))
>@@ -81,7 +84,7 @@ extern "C" {
> #endif
> 
> // The following are available on Neon platforms:
>-#if !defined(LIBYUV_DISABLE_NEON) && !defined(__native_client__) && \
>+#if !defined(LIBYUV_DISABLE_NEON) && \
>     (defined(__ARM_NEON__) || defined(LIBYUV_NEON) || defined(__aarch64__))
> #define HAS_SCALEARGBCOLS_NEON
> #define HAS_SCALEARGBROWDOWN2_NEON
>@@ -94,16 +97,6 @@ extern "C" {
> #define HAS_SCALEARGBFILTERCOLS_NEON
> #endif
> 
>-// The following are available on Mips platforms:
>-#if !defined(LIBYUV_DISABLE_DSPR2) && !defined(__native_client__) && \
>-    defined(__mips__) && defined(__mips_dsp) && (__mips_dsp_rev >= 2)
>-#define HAS_SCALEROWDOWN2_DSPR2
>-#define HAS_SCALEROWDOWN4_DSPR2
>-#define HAS_SCALEROWDOWN34_DSPR2
>-#define HAS_SCALEROWDOWN38_DSPR2
>-#define HAS_SCALEADDROW_DSPR2
>-#endif
>-
> #if !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)
> #define HAS_SCALEADDROW_MSA
> #define HAS_SCALEARGBCOLS_MSA
>@@ -123,8 +116,8 @@ void ScalePlaneVertical(int src_height,
>                         int dst_height,
>                         int src_stride,
>                         int dst_stride,
>-                        const uint8* src_argb,
>-                        uint8* dst_argb,
>+                        const uint8_t* src_argb,
>+                        uint8_t* dst_argb,
>                         int x,
>                         int y,
>                         int dy,
>@@ -136,8 +129,8 @@ void ScalePlaneVertical_16(int src_height,
>                            int dst_height,
>                            int src_stride,
>                            int dst_stride,
>-                           const uint16* src_argb,
>-                           uint16* dst_argb,
>+                           const uint16_t* src_argb,
>+                           uint16_t* dst_argb,
>                            int x,
>                            int y,
>                            int dy,
>@@ -176,425 +169,431 @@ void ScaleSlope(int src_width,
>                 int* dx,
>                 int* dy);
> 
>-void ScaleRowDown2_C(const uint8* src_ptr,
>+void ScaleRowDown2_C(const uint8_t* src_ptr,
>                      ptrdiff_t src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_width);
>-void ScaleRowDown2_16_C(const uint16* src_ptr,
>+void ScaleRowDown2_16_C(const uint16_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint16* dst,
>+                        uint16_t* dst,
>                         int dst_width);
>-void ScaleRowDown2Linear_C(const uint8* src_ptr,
>+void ScaleRowDown2Linear_C(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_width);
>-void ScaleRowDown2Linear_16_C(const uint16* src_ptr,
>+void ScaleRowDown2Linear_16_C(const uint16_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint16* dst,
>+                              uint16_t* dst,
>                               int dst_width);
>-void ScaleRowDown2Box_C(const uint8* src_ptr,
>+void ScaleRowDown2Box_C(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width);
>-void ScaleRowDown2Box_Odd_C(const uint8* src_ptr,
>+void ScaleRowDown2Box_Odd_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_width);
>-void ScaleRowDown2Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown2Box_16_C(const uint16_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint16* dst,
>+                           uint16_t* dst,
>                            int dst_width);
>-void ScaleRowDown4_C(const uint8* src_ptr,
>+void ScaleRowDown4_C(const uint8_t* src_ptr,
>                      ptrdiff_t src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_width);
>-void ScaleRowDown4_16_C(const uint16* src_ptr,
>+void ScaleRowDown4_16_C(const uint16_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint16* dst,
>+                        uint16_t* dst,
>                         int dst_width);
>-void ScaleRowDown4Box_C(const uint8* src_ptr,
>+void ScaleRowDown4Box_C(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width);
>-void ScaleRowDown4Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown4Box_16_C(const uint16_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint16* dst,
>+                           uint16_t* dst,
>                            int dst_width);
>-void ScaleRowDown34_C(const uint8* src_ptr,
>+void ScaleRowDown34_C(const uint8_t* src_ptr,
>                       ptrdiff_t src_stride,
>-                      uint8* dst,
>+                      uint8_t* dst,
>                       int dst_width);
>-void ScaleRowDown34_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_16_C(const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint16* dst,
>+                         uint16_t* dst,
>                          int dst_width);
>-void ScaleRowDown34_0_Box_C(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* d,
>+                            uint8_t* d,
>                             int dst_width);
>-void ScaleRowDown34_0_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_0_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* d,
>+                               uint16_t* d,
>                                int dst_width);
>-void ScaleRowDown34_1_Box_C(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* d,
>+                            uint8_t* d,
>                             int dst_width);
>-void ScaleRowDown34_1_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_1_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* d,
>+                               uint16_t* d,
>                                int dst_width);
>-void ScaleCols_C(uint8* dst_ptr,
>-                 const uint8* src_ptr,
>+void ScaleCols_C(uint8_t* dst_ptr,
>+                 const uint8_t* src_ptr,
>                  int dst_width,
>                  int x,
>                  int dx);
>-void ScaleCols_16_C(uint16* dst_ptr,
>-                    const uint16* src_ptr,
>+void ScaleCols_16_C(uint16_t* dst_ptr,
>+                    const uint16_t* src_ptr,
>                     int dst_width,
>                     int x,
>                     int dx);
>-void ScaleColsUp2_C(uint8* dst_ptr,
>-                    const uint8* src_ptr,
>+void ScaleColsUp2_C(uint8_t* dst_ptr,
>+                    const uint8_t* src_ptr,
>                     int dst_width,
>                     int,
>                     int);
>-void ScaleColsUp2_16_C(uint16* dst_ptr,
>-                       const uint16* src_ptr,
>+void ScaleColsUp2_16_C(uint16_t* dst_ptr,
>+                       const uint16_t* src_ptr,
>                        int dst_width,
>                        int,
>                        int);
>-void ScaleFilterCols_C(uint8* dst_ptr,
>-                       const uint8* src_ptr,
>+void ScaleFilterCols_C(uint8_t* dst_ptr,
>+                       const uint8_t* src_ptr,
>                        int dst_width,
>                        int x,
>                        int dx);
>-void ScaleFilterCols_16_C(uint16* dst_ptr,
>-                          const uint16* src_ptr,
>+void ScaleFilterCols_16_C(uint16_t* dst_ptr,
>+                          const uint16_t* src_ptr,
>                           int dst_width,
>                           int x,
>                           int dx);
>-void ScaleFilterCols64_C(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void ScaleFilterCols64_C(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          int dst_width,
>-                         int x,
>+                         int x32,
>                          int dx);
>-void ScaleFilterCols64_16_C(uint16* dst_ptr,
>-                            const uint16* src_ptr,
>+void ScaleFilterCols64_16_C(uint16_t* dst_ptr,
>+                            const uint16_t* src_ptr,
>                             int dst_width,
>-                            int x,
>+                            int x32,
>                             int dx);
>-void ScaleRowDown38_C(const uint8* src_ptr,
>+void ScaleRowDown38_C(const uint8_t* src_ptr,
>                       ptrdiff_t src_stride,
>-                      uint8* dst,
>+                      uint8_t* dst,
>                       int dst_width);
>-void ScaleRowDown38_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_16_C(const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint16* dst,
>+                         uint16_t* dst,
>                          int dst_width);
>-void ScaleRowDown38_3_Box_C(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown38_3_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_3_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* dst_ptr,
>+                               uint16_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown38_2_Box_C(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown38_2_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_2_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* dst_ptr,
>+                               uint16_t* dst_ptr,
>                                int dst_width);
>-void ScaleAddRow_C(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_16_C(const uint16* src_ptr, uint32* dst_ptr, int src_width);
>-void ScaleARGBRowDown2_C(const uint8* src_argb,
>+void ScaleAddRow_C(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width);
>+void ScaleAddRow_16_C(const uint16_t* src_ptr,
>+                      uint32_t* dst_ptr,
>+                      int src_width);
>+void ScaleARGBRowDown2_C(const uint8_t* src_argb,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_argb,
>+                         uint8_t* dst_argb,
>                          int dst_width);
>-void ScaleARGBRowDown2Linear_C(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_C(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width);
>-void ScaleARGBRowDown2Box_C(const uint8* src_argb,
>+void ScaleARGBRowDown2Box_C(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width);
>-void ScaleARGBRowDownEven_C(const uint8* src_argb,
>+void ScaleARGBRowDownEven_C(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>                             int src_stepx,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width);
>-void ScaleARGBRowDownEvenBox_C(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_C(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width);
>-void ScaleARGBCols_C(uint8* dst_argb,
>-                     const uint8* src_argb,
>+void ScaleARGBCols_C(uint8_t* dst_argb,
>+                     const uint8_t* src_argb,
>                      int dst_width,
>                      int x,
>                      int dx);
>-void ScaleARGBCols64_C(uint8* dst_argb,
>-                       const uint8* src_argb,
>+void ScaleARGBCols64_C(uint8_t* dst_argb,
>+                       const uint8_t* src_argb,
>                        int dst_width,
>-                       int x,
>+                       int x32,
>                        int dx);
>-void ScaleARGBColsUp2_C(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBColsUp2_C(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int,
>                         int);
>-void ScaleARGBFilterCols_C(uint8* dst_argb,
>-                           const uint8* src_argb,
>+void ScaleARGBFilterCols_C(uint8_t* dst_argb,
>+                           const uint8_t* src_argb,
>                            int dst_width,
>                            int x,
>                            int dx);
>-void ScaleARGBFilterCols64_C(uint8* dst_argb,
>-                             const uint8* src_argb,
>+void ScaleARGBFilterCols64_C(uint8_t* dst_argb,
>+                             const uint8_t* src_argb,
>                              int dst_width,
>-                             int x,
>+                             int x32,
>                              int dx);
> 
> // Specialized scalers for x86.
>-void ScaleRowDown2_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2_SSSE3(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width);
>-void ScaleRowDown2Linear_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Linear_SSSE3(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown2Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Box_SSSE3(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown2_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2_AVX2(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width);
>-void ScaleRowDown2Linear_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Linear_AVX2(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* dst_ptr,
>                               int dst_width);
>-void ScaleRowDown2Box_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Box_AVX2(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width);
>-void ScaleRowDown4_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4_SSSE3(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width);
>-void ScaleRowDown4Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4Box_SSSE3(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown4_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4_AVX2(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width);
>-void ScaleRowDown4Box_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4Box_AVX2(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width);
> 
>-void ScaleRowDown34_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_SSSE3(const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>-                          uint8* dst_ptr,
>+                          uint8_t* dst_ptr,
>                           int dst_width);
>-void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown38_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_SSSE3(const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>-                          uint8* dst_ptr,
>+                          uint8_t* dst_ptr,
>                           int dst_width);
>-void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown2_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2_Any_SSSE3(const uint8_t* src_ptr,
>                              ptrdiff_t src_stride,
>-                             uint8* dst_ptr,
>+                             uint8_t* dst_ptr,
>                              int dst_width);
>-void ScaleRowDown2Linear_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Linear_Any_SSSE3(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_ptr,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleRowDown2Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Box_Any_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown2Box_Odd_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Box_Odd_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown2_Any_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2_Any_AVX2(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown2Linear_Any_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Linear_Any_AVX2(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
>-void ScaleRowDown2Box_Any_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Box_Any_AVX2(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown2Box_Odd_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Box_Odd_AVX2(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown4_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4_Any_SSSE3(const uint8_t* src_ptr,
>                              ptrdiff_t src_stride,
>-                             uint8* dst_ptr,
>+                             uint8_t* dst_ptr,
>                              int dst_width);
>-void ScaleRowDown4Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4Box_Any_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleRowDown4_Any_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4_Any_AVX2(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown4Box_Any_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4Box_Any_AVX2(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
> 
>-void ScaleRowDown34_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_Any_SSSE3(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* dst_ptr,
>                               int dst_width);
>-void ScaleRowDown34_1_Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_Any_SSSE3(const uint8_t* src_ptr,
>                                     ptrdiff_t src_stride,
>-                                    uint8* dst_ptr,
>+                                    uint8_t* dst_ptr,
>                                     int dst_width);
>-void ScaleRowDown34_0_Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_Any_SSSE3(const uint8_t* src_ptr,
>                                     ptrdiff_t src_stride,
>-                                    uint8* dst_ptr,
>+                                    uint8_t* dst_ptr,
>                                     int dst_width);
>-void ScaleRowDown38_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_Any_SSSE3(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* dst_ptr,
>                               int dst_width);
>-void ScaleRowDown38_3_Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_Any_SSSE3(const uint8_t* src_ptr,
>                                     ptrdiff_t src_stride,
>-                                    uint8* dst_ptr,
>+                                    uint8_t* dst_ptr,
>                                     int dst_width);
>-void ScaleRowDown38_2_Box_Any_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_Any_SSSE3(const uint8_t* src_ptr,
>                                     ptrdiff_t src_stride,
>-                                    uint8* dst_ptr,
>+                                    uint8_t* dst_ptr,
>                                     int dst_width);
> 
>-void ScaleAddRow_SSE2(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_AVX2(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_Any_SSE2(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_Any_AVX2(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-
>-void ScaleFilterCols_SSSE3(uint8* dst_ptr,
>-                           const uint8* src_ptr,
>+void ScaleAddRow_SSE2(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width);
>+void ScaleAddRow_AVX2(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width);
>+void ScaleAddRow_Any_SSE2(const uint8_t* src_ptr,
>+                          uint16_t* dst_ptr,
>+                          int src_width);
>+void ScaleAddRow_Any_AVX2(const uint8_t* src_ptr,
>+                          uint16_t* dst_ptr,
>+                          int src_width);
>+
>+void ScaleFilterCols_SSSE3(uint8_t* dst_ptr,
>+                           const uint8_t* src_ptr,
>                            int dst_width,
>                            int x,
>                            int dx);
>-void ScaleColsUp2_SSE2(uint8* dst_ptr,
>-                       const uint8* src_ptr,
>+void ScaleColsUp2_SSE2(uint8_t* dst_ptr,
>+                       const uint8_t* src_ptr,
>                        int dst_width,
>                        int x,
>                        int dx);
> 
> // ARGB Column functions
>-void ScaleARGBCols_SSE2(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBCols_SSE2(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx);
>-void ScaleARGBFilterCols_SSSE3(uint8* dst_argb,
>-                               const uint8* src_argb,
>+void ScaleARGBFilterCols_SSSE3(uint8_t* dst_argb,
>+                               const uint8_t* src_argb,
>                                int dst_width,
>                                int x,
>                                int dx);
>-void ScaleARGBColsUp2_SSE2(uint8* dst_argb,
>-                           const uint8* src_argb,
>+void ScaleARGBColsUp2_SSE2(uint8_t* dst_argb,
>+                           const uint8_t* src_argb,
>                            int dst_width,
>                            int x,
>                            int dx);
>-void ScaleARGBFilterCols_NEON(uint8* dst_argb,
>-                              const uint8* src_argb,
>+void ScaleARGBFilterCols_NEON(uint8_t* dst_argb,
>+                              const uint8_t* src_argb,
>                               int dst_width,
>                               int x,
>                               int dx);
>-void ScaleARGBCols_NEON(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBCols_NEON(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx);
>-void ScaleARGBFilterCols_Any_NEON(uint8* dst_argb,
>-                                  const uint8* src_argb,
>+void ScaleARGBFilterCols_Any_NEON(uint8_t* dst_ptr,
>+                                  const uint8_t* src_ptr,
>                                   int dst_width,
>                                   int x,
>                                   int dx);
>-void ScaleARGBCols_Any_NEON(uint8* dst_argb,
>-                            const uint8* src_argb,
>+void ScaleARGBCols_Any_NEON(uint8_t* dst_ptr,
>+                            const uint8_t* src_ptr,
>                             int dst_width,
>                             int x,
>                             int dx);
>-void ScaleARGBFilterCols_MSA(uint8* dst_argb,
>-                             const uint8* src_argb,
>+void ScaleARGBFilterCols_MSA(uint8_t* dst_argb,
>+                             const uint8_t* src_argb,
>                              int dst_width,
>                              int x,
>                              int dx);
>-void ScaleARGBCols_MSA(uint8* dst_argb,
>-                       const uint8* src_argb,
>+void ScaleARGBCols_MSA(uint8_t* dst_argb,
>+                       const uint8_t* src_argb,
>                        int dst_width,
>                        int x,
>                        int dx);
>-void ScaleARGBFilterCols_Any_MSA(uint8* dst_argb,
>-                                 const uint8* src_argb,
>+void ScaleARGBFilterCols_Any_MSA(uint8_t* dst_ptr,
>+                                 const uint8_t* src_ptr,
>                                  int dst_width,
>                                  int x,
>                                  int dx);
>-void ScaleARGBCols_Any_MSA(uint8* dst_argb,
>-                           const uint8* src_argb,
>+void ScaleARGBCols_Any_MSA(uint8_t* dst_ptr,
>+                           const uint8_t* src_ptr,
>                            int dst_width,
>                            int x,
>                            int dx);
> 
> // ARGB Row functions
>-void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2_SSE2(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width);
>-void ScaleARGBRowDown2Linear_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_SSE2(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width);
>-void ScaleARGBRowDown2Box_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Box_SSE2(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width);
>-void ScaleARGBRowDown2_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2_NEON(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_width);
>-void ScaleARGBRowDown2Linear_NEON(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width);
>-void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst,
>+                               uint8_t* dst,
>                                int dst_width);
> void ScaleARGBRowDown2_MSA(const uint8_t* src_argb,
>                            ptrdiff_t src_stride,
>@@ -608,274 +607,231 @@ void ScaleARGBRowDown2Box_MSA(const uint8_t* src_argb,
>                               ptrdiff_t src_stride,
>                               uint8_t* dst_argb,
>                               int dst_width);
>-void ScaleARGBRowDown2_Any_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2_Any_SSE2(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_argb,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleARGBRowDown2Linear_Any_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_Any_SSE2(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>-                                      uint8* dst_argb,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width);
>-void ScaleARGBRowDown2Box_Any_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Box_Any_SSE2(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_argb,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleARGBRowDown2_Any_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2_Any_NEON(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst,
>+                                uint8_t* dst_ptr,
>                                 int dst_width);
>-void ScaleARGBRowDown2Linear_Any_NEON(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_Any_NEON(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>-                                      uint8* dst_argb,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width);
>-void ScaleARGBRowDown2Box_Any_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2Box_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleARGBRowDown2_Any_MSA(const uint8_t* src_argb,
>+void ScaleARGBRowDown2_Any_MSA(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8_t* dst_argb,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleARGBRowDown2Linear_Any_MSA(const uint8_t* src_argb,
>+void ScaleARGBRowDown2Linear_Any_MSA(const uint8_t* src_ptr,
>                                      ptrdiff_t src_stride,
>-                                     uint8_t* dst_argb,
>+                                     uint8_t* dst_ptr,
>                                      int dst_width);
>-void ScaleARGBRowDown2Box_Any_MSA(const uint8_t* src_argb,
>+void ScaleARGBRowDown2Box_Any_MSA(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>-                                  uint8_t* dst_argb,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
> 
>-void ScaleARGBRowDownEven_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEven_SSE2(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width);
>-void ScaleARGBRowDownEvenBox_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_SSE2(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>                                   int src_stepx,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width);
>-void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEven_NEON(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width);
>-void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>                                   int src_stepx,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width);
> void ScaleARGBRowDownEven_MSA(const uint8_t* src_argb,
>                               ptrdiff_t src_stride,
>                               int32_t src_stepx,
>                               uint8_t* dst_argb,
>                               int dst_width);
>-void ScaleARGBRowDownEvenBox_MSA(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_MSA(const uint8_t* src_argb,
>                                  ptrdiff_t src_stride,
>                                  int src_stepx,
>-                                 uint8* dst_argb,
>+                                 uint8_t* dst_argb,
>                                  int dst_width);
>-void ScaleARGBRowDownEven_Any_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEven_Any_SSE2(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>                                    int src_stepx,
>-                                   uint8* dst_argb,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleARGBRowDownEvenBox_Any_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_Any_SSE2(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>                                       int src_stepx,
>-                                      uint8* dst_argb,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width);
>-void ScaleARGBRowDownEven_Any_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEven_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>                                    int src_stepx,
>-                                   uint8* dst_argb,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleARGBRowDownEvenBox_Any_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_Any_NEON(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>                                       int src_stepx,
>-                                      uint8* dst_argb,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width);
>-void ScaleARGBRowDownEven_Any_MSA(const uint8_t* src_argb,
>+void ScaleARGBRowDownEven_Any_MSA(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>                                   int32_t src_stepx,
>-                                  uint8_t* dst_argb,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
>-void ScaleARGBRowDownEvenBox_Any_MSA(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_Any_MSA(const uint8_t* src_ptr,
>                                      ptrdiff_t src_stride,
>                                      int src_stepx,
>-                                     uint8* dst_argb,
>+                                     uint8_t* dst_ptr,
>                                      int dst_width);
> 
> // ScaleRowDown2Box also used by planar functions
> // NEON downscalers with interpolation.
> 
> // Note - not static due to reuse in convert for 444 to 420.
>-void ScaleRowDown2_NEON(const uint8* src_ptr,
>+void ScaleRowDown2_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width);
>-void ScaleRowDown2Linear_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Linear_NEON(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst,
>+                              uint8_t* dst,
>                               int dst_width);
>-void ScaleRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_width);
> 
>-void ScaleRowDown4_NEON(const uint8* src_ptr,
>+void ScaleRowDown4_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width);
>-void ScaleRowDown4Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown4Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width);
> 
> // Down scale from 4 to 3 pixels. Use the neon multilane read/write
> //  to load up the every 4th pixel into a 4 different registers.
> // Point samples 32 pixels to 24 pixels.
>-void ScaleRowDown34_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width);
>-void ScaleRowDown34_0_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown34_1_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
> 
> // 32 -> 12
>-void ScaleRowDown38_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width);
> // 32x3 -> 12x1
>-void ScaleRowDown38_3_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
> // 32x2 -> 12x1
>-void ScaleRowDown38_2_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
> 
>-void ScaleRowDown2_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown2_Any_NEON(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown2Linear_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Linear_Any_NEON(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
>-void ScaleRowDown2Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Box_Any_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown2Box_Odd_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Box_Odd_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown4_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown4_Any_NEON(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown4Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown4Box_Any_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width);
>-void ScaleRowDown34_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_Any_NEON(const uint8_t* src_ptr,
>                              ptrdiff_t src_stride,
>-                             uint8* dst_ptr,
>+                             uint8_t* dst_ptr,
>                              int dst_width);
>-void ScaleRowDown34_0_Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_ptr,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
>-void ScaleRowDown34_1_Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_ptr,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
> // 32 -> 12
>-void ScaleRowDown38_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_Any_NEON(const uint8_t* src_ptr,
>                              ptrdiff_t src_stride,
>-                             uint8* dst_ptr,
>+                             uint8_t* dst_ptr,
>                              int dst_width);
> // 32x3 -> 12x1
>-void ScaleRowDown38_3_Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_ptr,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
> // 32x2 -> 12x1
>-void ScaleRowDown38_2_Box_Any_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_Any_NEON(const uint8_t* src_ptr,
>                                    ptrdiff_t src_stride,
>-                                   uint8* dst_ptr,
>+                                   uint8_t* dst_ptr,
>                                    int dst_width);
> 
>-void ScaleAddRow_NEON(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_Any_NEON(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>+void ScaleAddRow_NEON(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width);
>+void ScaleAddRow_Any_NEON(const uint8_t* src_ptr,
>+                          uint16_t* dst_ptr,
>+                          int src_width);
> 
>-void ScaleFilterCols_NEON(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void ScaleFilterCols_NEON(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           int dst_width,
>                           int x,
>                           int dx);
> 
>-void ScaleFilterCols_Any_NEON(uint8* dst_ptr,
>-                              const uint8* src_ptr,
>+void ScaleFilterCols_Any_NEON(uint8_t* dst_ptr,
>+                              const uint8_t* src_ptr,
>                               int dst_width,
>                               int x,
>                               int dx);
> 
>-void ScaleRowDown2_DSPR2(const uint8* src_ptr,
>-                         ptrdiff_t src_stride,
>-                         uint8* dst,
>-                         int dst_width);
>-void ScaleRowDown2Box_DSPR2(const uint8* src_ptr,
>-                            ptrdiff_t src_stride,
>-                            uint8* dst,
>-                            int dst_width);
>-void ScaleRowDown4_DSPR2(const uint8* src_ptr,
>-                         ptrdiff_t src_stride,
>-                         uint8* dst,
>-                         int dst_width);
>-void ScaleRowDown4Box_DSPR2(const uint8* src_ptr,
>-                            ptrdiff_t src_stride,
>-                            uint8* dst,
>-                            int dst_width);
>-void ScaleRowDown34_DSPR2(const uint8* src_ptr,
>-                          ptrdiff_t src_stride,
>-                          uint8* dst,
>-                          int dst_width);
>-void ScaleRowDown34_0_Box_DSPR2(const uint8* src_ptr,
>-                                ptrdiff_t src_stride,
>-                                uint8* d,
>-                                int dst_width);
>-void ScaleRowDown34_1_Box_DSPR2(const uint8* src_ptr,
>-                                ptrdiff_t src_stride,
>-                                uint8* d,
>-                                int dst_width);
>-void ScaleRowDown38_DSPR2(const uint8* src_ptr,
>-                          ptrdiff_t src_stride,
>-                          uint8* dst,
>-                          int dst_width);
>-void ScaleRowDown38_2_Box_DSPR2(const uint8* src_ptr,
>-                                ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>-                                int dst_width);
>-void ScaleRowDown38_3_Box_DSPR2(const uint8* src_ptr,
>-                                ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>-                                int dst_width);
>-void ScaleAddRow_DSPR2(const uint8* src_ptr, uint16* dst_ptr, int src_width);
>-void ScaleAddRow_Any_DSPR2(const uint8* src_ptr,
>-                           uint16* dst_ptr,
>-                           int src_width);
>-
> void ScaleRowDown2_MSA(const uint8_t* src_ptr,
>                        ptrdiff_t src_stride,
>                        uint8_t* dst,
>@@ -909,47 +865,47 @@ void ScaleRowDown38_3_Box_MSA(const uint8_t* src_ptr,
>                               uint8_t* dst_ptr,
>                               int dst_width);
> void ScaleAddRow_MSA(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width);
>-void ScaleFilterCols_MSA(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void ScaleFilterCols_MSA(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          int dst_width,
>                          int x,
>                          int dx);
>-void ScaleRowDown34_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_MSA(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst,
>                         int dst_width);
>-void ScaleRowDown34_0_Box_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* d,
>                               int dst_width);
>-void ScaleRowDown34_1_Box_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* d,
>                               int dst_width);
> 
> void ScaleRowDown2_Any_MSA(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8_t* dst,
>+                           uint8_t* dst_ptr,
>                            int dst_width);
> void ScaleRowDown2Linear_Any_MSA(const uint8_t* src_ptr,
>                                  ptrdiff_t src_stride,
>-                                 uint8_t* dst,
>+                                 uint8_t* dst_ptr,
>                                  int dst_width);
> void ScaleRowDown2Box_Any_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8_t* dst,
>+                              uint8_t* dst_ptr,
>                               int dst_width);
> void ScaleRowDown4_Any_MSA(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8_t* dst,
>+                           uint8_t* dst_ptr,
>                            int dst_width);
> void ScaleRowDown4Box_Any_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8_t* dst,
>+                              uint8_t* dst_ptr,
>                               int dst_width);
> void ScaleRowDown38_Any_MSA(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8_t* dst,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
> void ScaleRowDown38_2_Box_Any_MSA(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>@@ -962,22 +918,22 @@ void ScaleRowDown38_3_Box_Any_MSA(const uint8_t* src_ptr,
> void ScaleAddRow_Any_MSA(const uint8_t* src_ptr,
>                          uint16_t* dst_ptr,
>                          int src_width);
>-void ScaleFilterCols_Any_MSA(uint8* dst_ptr,
>-                             const uint8* src_ptr,
>+void ScaleFilterCols_Any_MSA(uint8_t* dst_ptr,
>+                             const uint8_t* src_ptr,
>                              int dst_width,
>                              int x,
>                              int dx);
>-void ScaleRowDown34_Any_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_Any_MSA(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width);
>-void ScaleRowDown34_0_Box_Any_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_Any_MSA(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
>-void ScaleRowDown34_1_Box_Any_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_Any_MSA(const uint8_t* src_ptr,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_ptr,
>+                                  uint8_t* dst_ptr,
>                                   int dst_width);
> 
> #ifdef __cplusplus
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/version.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/version.h
>index 838c70f1349a9ad8f19a4832ae9c5b14c2d65eef..21522cf351c8c53610ec2e8430ddc0a42cd58772 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/version.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/version.h
>@@ -11,6 +11,6 @@
> #ifndef INCLUDE_LIBYUV_VERSION_H_
> #define INCLUDE_LIBYUV_VERSION_H_
> 
>-#define LIBYUV_VERSION 1678
>+#define LIBYUV_VERSION 1703
> 
> #endif  // INCLUDE_LIBYUV_VERSION_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/video_common.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/video_common.h
>index f3711c423ba3b5f0421380e8cb8e4916202fc64d..bcef378b5a4e5b2c3af9f364e153c7753671dd31 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/video_common.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/include/libyuv/video_common.h
>@@ -28,13 +28,13 @@ extern "C" {
> // Needs to be a macro otherwise the OS X compiler complains when the kFormat*
> // constants are used in a switch.
> #ifdef __cplusplus
>-#define FOURCC(a, b, c, d)                                    \
>-  ((static_cast<uint32>(a)) | (static_cast<uint32>(b) << 8) | \
>-   (static_cast<uint32>(c) << 16) | (static_cast<uint32>(d) << 24))
>+#define FOURCC(a, b, c, d)                                        \
>+  ((static_cast<uint32_t>(a)) | (static_cast<uint32_t>(b) << 8) | \
>+   (static_cast<uint32_t>(c) << 16) | (static_cast<uint32_t>(d) << 24))
> #else
>-#define FOURCC(a, b, c, d)                                 \
>-  (((uint32)(a)) | ((uint32)(b) << 8) |       /* NOLINT */ \
>-   ((uint32)(c) << 16) | ((uint32)(d) << 24)) /* NOLINT */
>+#define FOURCC(a, b, c, d)                                     \
>+  (((uint32_t)(a)) | ((uint32_t)(b) << 8) |       /* NOLINT */ \
>+   ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24)) /* NOLINT */
> #endif
> 
> // Some pages discussing FourCC codes:
>@@ -49,25 +49,26 @@ extern "C" {
> // Secondary formats are converted in 2 steps.
> // Auxilliary formats call primary converters.
> enum FourCC {
>-  // 8 Primary YUV formats: 5 planar, 2 biplanar, 2 packed.
>+  // 9 Primary YUV formats: 5 planar, 2 biplanar, 2 packed.
>   FOURCC_I420 = FOURCC('I', '4', '2', '0'),
>   FOURCC_I422 = FOURCC('I', '4', '2', '2'),
>   FOURCC_I444 = FOURCC('I', '4', '4', '4'),
>-  FOURCC_I411 = FOURCC('I', '4', '1', '1'),  // deprecated.
>   FOURCC_I400 = FOURCC('I', '4', '0', '0'),
>   FOURCC_NV21 = FOURCC('N', 'V', '2', '1'),
>   FOURCC_NV12 = FOURCC('N', 'V', '1', '2'),
>   FOURCC_YUY2 = FOURCC('Y', 'U', 'Y', '2'),
>   FOURCC_UYVY = FOURCC('U', 'Y', 'V', 'Y'),
>+  FOURCC_H010 = FOURCC('H', '0', '1', '0'),  // unofficial fourcc. 10 bit lsb
> 
>   // 1 Secondary YUV format: row biplanar.
>   FOURCC_M420 = FOURCC('M', '4', '2', '0'),
>-  FOURCC_Q420 = FOURCC('Q', '4', '2', '0'),  // deprecated.
> 
>-  // 9 Primary RGB formats: 4 32 bpp, 2 24 bpp, 3 16 bpp.
>+  // 11 Primary RGB formats: 4 32 bpp, 2 24 bpp, 3 16 bpp, 1 10 bpc
>   FOURCC_ARGB = FOURCC('A', 'R', 'G', 'B'),
>   FOURCC_BGRA = FOURCC('B', 'G', 'R', 'A'),
>   FOURCC_ABGR = FOURCC('A', 'B', 'G', 'R'),
>+  FOURCC_AR30 = FOURCC('A', 'R', '3', '0'),  // 10 bit per channel. 2101010.
>+  FOURCC_AB30 = FOURCC('A', 'B', '3', '0'),  // ABGR version of 10 bit
>   FOURCC_24BG = FOURCC('2', '4', 'B', 'G'),
>   FOURCC_RAW = FOURCC('r', 'a', 'w', ' '),
>   FOURCC_RGBA = FOURCC('R', 'G', 'B', 'A'),
>@@ -75,16 +76,10 @@ enum FourCC {
>   FOURCC_RGBO = FOURCC('R', 'G', 'B', 'O'),  // argb1555 LE.
>   FOURCC_R444 = FOURCC('R', '4', '4', '4'),  // argb4444 LE.
> 
>-  // 4 Secondary RGB formats: 4 Bayer Patterns. deprecated.
>-  FOURCC_RGGB = FOURCC('R', 'G', 'G', 'B'),
>-  FOURCC_BGGR = FOURCC('B', 'G', 'G', 'R'),
>-  FOURCC_GRBG = FOURCC('G', 'R', 'B', 'G'),
>-  FOURCC_GBRG = FOURCC('G', 'B', 'R', 'G'),
>-
>   // 1 Primary Compressed YUV format.
>   FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'),
> 
>-  // 5 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
>+  // 7 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
>   FOURCC_YV12 = FOURCC('Y', 'V', '1', '2'),
>   FOURCC_YV16 = FOURCC('Y', 'V', '1', '6'),
>   FOURCC_YV24 = FOURCC('Y', 'V', '2', '4'),
>@@ -112,7 +107,13 @@ enum FourCC {
>   FOURCC_L565 = FOURCC('L', '5', '6', '5'),  // Alias for RGBP.
>   FOURCC_5551 = FOURCC('5', '5', '5', '1'),  // Alias for RGBO.
> 
>-  // 1 Auxiliary compressed YUV format set aside for capturer.
>+  // deprecated formats.  Not supported, but defined for backward compatibility.
>+  FOURCC_I411 = FOURCC('I', '4', '1', '1'),
>+  FOURCC_Q420 = FOURCC('Q', '4', '2', '0'),
>+  FOURCC_RGGB = FOURCC('R', 'G', 'G', 'B'),
>+  FOURCC_BGGR = FOURCC('B', 'G', 'G', 'R'),
>+  FOURCC_GRBG = FOURCC('G', 'R', 'B', 'G'),
>+  FOURCC_GBRG = FOURCC('G', 'B', 'R', 'G'),
>   FOURCC_H264 = FOURCC('H', '2', '6', '4'),
> 
>   // Match any fourcc.
>@@ -136,6 +137,8 @@ enum FourCCBpp {
>   FOURCC_BPP_BGRA = 32,
>   FOURCC_BPP_ABGR = 32,
>   FOURCC_BPP_RGBA = 32,
>+  FOURCC_BPP_AR30 = 32,
>+  FOURCC_BPP_AB30 = 32,
>   FOURCC_BPP_24BG = 24,
>   FOURCC_BPP_RAW = 24,
>   FOURCC_BPP_RGBP = 16,
>@@ -152,6 +155,7 @@ enum FourCCBpp {
>   FOURCC_BPP_J420 = 12,
>   FOURCC_BPP_J400 = 8,
>   FOURCC_BPP_H420 = 12,
>+  FOURCC_BPP_H010 = 24,
>   FOURCC_BPP_MJPG = 0,  // 0 means unknown.
>   FOURCC_BPP_H264 = 0,
>   FOURCC_BPP_IYUV = 12,
>@@ -174,7 +178,7 @@ enum FourCCBpp {
> };
> 
> // Converts fourcc aliases into canonical ones.
>-LIBYUV_API uint32 CanonicalFourCC(uint32 fourcc);
>+LIBYUV_API uint32_t CanonicalFourCC(uint32_t fourcc);
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gyp b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gyp
>index f73a1a4b745e4ff53cf589027674c09f70c7c395..e853ba3197a94bcad91011ac6384ce84daa1db10 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gyp
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gyp
>@@ -121,7 +121,6 @@
>         # Enable the following 3 macros to turn off assembly for specified CPU.
>         # 'LIBYUV_DISABLE_X86',
>         # 'LIBYUV_DISABLE_NEON',
>-        # 'LIBYUV_DISABLE_DSPR2',
>         # Enable the following macro to build libyuv as a shared library (dll).
>         # 'LIBYUV_USING_SHARED_LIBRARY',
>         # TODO(fbarchard): Make these into gyp defines.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gypi b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gypi
>index ec81bc9bbab53299b6c9c45883bda0dc8988c2b4..9467adfc515d7e45e5fda706a32b565ddfe492ed 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gypi
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv.gypi
>@@ -55,7 +55,6 @@
>       'source/rotate_argb.cc',
>       'source/rotate_common.cc',
>       'source/rotate_gcc.cc',
>-      'source/rotate_dspr2.cc',
>       'source/rotate_msa.cc',
>       'source/rotate_neon.cc',
>       'source/rotate_neon64.cc',
>@@ -63,7 +62,6 @@
>       'source/row_any.cc',
>       'source/row_common.cc',
>       'source/row_gcc.cc',
>-      'source/row_dspr2.cc',
>       'source/row_msa.cc',
>       'source/row_neon.cc',
>       'source/row_neon64.cc',
>@@ -73,7 +71,6 @@
>       'source/scale_argb.cc',
>       'source/scale_common.cc',
>       'source/scale_gcc.cc',
>-      'source/scale_dspr2.cc',
>       'source/scale_msa.cc',
>       'source/scale_neon.cc',
>       'source/scale_neon64.cc',
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv_test.gyp b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv_test.gyp
>index 4222cf26da7b6d7d6e44e7a14fae20d3e0db87ae..5fe154c610a70ef9acdf0f40076d807d86856094 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv_test.gyp
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/libyuv_test.gyp
>@@ -100,7 +100,6 @@
>         # Enable the following 3 macros to turn off assembly for specified CPU.
>         # 'LIBYUV_DISABLE_X86',
>         # 'LIBYUV_DISABLE_NEON',
>-        # 'LIBYUV_DISABLE_DSPR2',
>         # Enable the following macro to build libyuv as a shared library (dll).
>         # 'LIBYUV_USING_SHARED_LIBRARY',
>       ],
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/linux.mk b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/linux.mk
>index 7e9aa5e4e8b98795f51b58e04f3dd8429b75d3fa..b84c89f912e066416f2a2477ab720a6a477cb66f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/linux.mk
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/linux.mk
>@@ -32,14 +32,12 @@ LOCAL_OBJ_FILES := \
> 	source/rotate.o            \
> 	source/rotate_common.o     \
> 	source/rotate_gcc.o        \
>-	source/rotate_dspr2.o      \
> 	source/rotate_neon64.o     \
> 	source/rotate_neon.o       \
> 	source/rotate_win.o        \
> 	source/row_any.o           \
> 	source/row_common.o        \
> 	source/row_gcc.o           \
>-	source/row_dspr2.o         \
> 	source/row_neon64.o        \
> 	source/row_neon.o          \
> 	source/row_win.o           \
>@@ -48,7 +46,6 @@ LOCAL_OBJ_FILES := \
> 	source/scale.o             \
> 	source/scale_common.o      \
> 	source/scale_gcc.o         \
>-	source/scale_dspr2.o       \
> 	source/scale_neon64.o      \
> 	source/scale_neon.o        \
> 	source/scale_win.o         \
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare.cc
>index 8c379b59cb8b309ab9282969ade25746362409df..50e3abd0556e3862a7da070e4555daa2ed4bf45c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare.cc
>@@ -29,10 +29,11 @@ extern "C" {
> 
> // hash seed of 5381 recommended.
> LIBYUV_API
>-uint32 HashDjb2(const uint8* src, uint64 count, uint32 seed) {
>+uint32_t HashDjb2(const uint8_t* src, uint64_t count, uint32_t seed) {
>   const int kBlockSize = 1 << 15;  // 32768;
>   int remainder;
>-  uint32 (*HashDjb2_SSE)(const uint8* src, int count, uint32 seed) = HashDjb2_C;
>+  uint32_t (*HashDjb2_SSE)(const uint8_t* src, int count, uint32_t seed) =
>+      HashDjb2_C;
> #if defined(HAS_HASHDJB2_SSE41)
>   if (TestCpuFlag(kCpuHasSSE41)) {
>     HashDjb2_SSE = HashDjb2_SSE41;
>@@ -44,7 +45,7 @@ uint32 HashDjb2(const uint8* src, uint64 count, uint32 seed) {
>   }
> #endif
> 
>-  while (count >= (uint64)(kBlockSize)) {
>+  while (count >= (uint64_t)(kBlockSize)) {
>     seed = HashDjb2_SSE(src, kBlockSize, seed);
>     src += kBlockSize;
>     count -= kBlockSize;
>@@ -62,7 +63,7 @@ uint32 HashDjb2(const uint8* src, uint64 count, uint32 seed) {
>   return seed;
> }
> 
>-static uint32 ARGBDetectRow_C(const uint8* argb, int width) {
>+static uint32_t ARGBDetectRow_C(const uint8_t* argb, int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     if (argb[0] != 255) {  // First byte is not Alpha of 255, so not ARGB.
>@@ -93,8 +94,11 @@ static uint32 ARGBDetectRow_C(const uint8* argb, int width) {
> // Scan an opaque argb image and return fourcc based on alpha offset.
> // Returns FOURCC_ARGB, FOURCC_BGRA, or 0 if unknown.
> LIBYUV_API
>-uint32 ARGBDetect(const uint8* argb, int stride_argb, int width, int height) {
>-  uint32 fourcc = 0;
>+uint32_t ARGBDetect(const uint8_t* argb,
>+                    int stride_argb,
>+                    int width,
>+                    int height) {
>+  uint32_t fourcc = 0;
>   int h;
> 
>   // Coalesce rows.
>@@ -114,17 +118,17 @@ uint32 ARGBDetect(const uint8* argb, int stride_argb, int width, int height) {
> // So actual maximum is 1 less loop, which is 64436 - 32 bytes.
> 
> LIBYUV_API
>-uint64 ComputeHammingDistance(const uint8* src_a,
>-                              const uint8* src_b,
>-                              int count) {
>+uint64_t ComputeHammingDistance(const uint8_t* src_a,
>+                                const uint8_t* src_b,
>+                                int count) {
>   const int kBlockSize = 1 << 15;  // 32768;
>   const int kSimdSize = 64;
>   // SIMD for multiple of 64, and C for remainder
>   int remainder = count & (kBlockSize - 1) & ~(kSimdSize - 1);
>-  uint64 diff = 0;
>+  uint64_t diff = 0;
>   int i;
>-  uint32 (*HammingDistance)(const uint8* src_a, const uint8* src_b, int count) =
>-      HammingDistance_C;
>+  uint32_t (*HammingDistance)(const uint8_t* src_a, const uint8_t* src_b,
>+                              int count) = HammingDistance_C;
> #if defined(HAS_HAMMINGDISTANCE_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     HammingDistance = HammingDistance_NEON;
>@@ -172,18 +176,18 @@ uint64 ComputeHammingDistance(const uint8* src_a,
> 
> // TODO(fbarchard): Refactor into row function.
> LIBYUV_API
>-uint64 ComputeSumSquareError(const uint8* src_a,
>-                             const uint8* src_b,
>-                             int count) {
>+uint64_t ComputeSumSquareError(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count) {
>   // SumSquareError returns values 0 to 65535 for each squared difference.
>-  // Up to 65536 of those can be summed and remain within a uint32.
>-  // After each block of 65536 pixels, accumulate into a uint64.
>+  // Up to 65536 of those can be summed and remain within a uint32_t.
>+  // After each block of 65536 pixels, accumulate into a uint64_t.
>   const int kBlockSize = 65536;
>   int remainder = count & (kBlockSize - 1) & ~31;
>-  uint64 sse = 0;
>+  uint64_t sse = 0;
>   int i;
>-  uint32 (*SumSquareError)(const uint8* src_a, const uint8* src_b, int count) =
>-      SumSquareError_C;
>+  uint32_t (*SumSquareError)(const uint8_t* src_a, const uint8_t* src_b,
>+                             int count) = SumSquareError_C;
> #if defined(HAS_SUMSQUAREERROR_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     SumSquareError = SumSquareError_NEON;
>@@ -227,13 +231,13 @@ uint64 ComputeSumSquareError(const uint8* src_a,
> }
> 
> LIBYUV_API
>-uint64 ComputeSumSquareErrorPlane(const uint8* src_a,
>-                                  int stride_a,
>-                                  const uint8* src_b,
>-                                  int stride_b,
>-                                  int width,
>-                                  int height) {
>-  uint64 sse = 0;
>+uint64_t ComputeSumSquareErrorPlane(const uint8_t* src_a,
>+                                    int stride_a,
>+                                    const uint8_t* src_b,
>+                                    int stride_b,
>+                                    int width,
>+                                    int height) {
>+  uint64_t sse = 0;
>   int h;
>   // Coalesce rows.
>   if (stride_a == width && stride_b == width) {
>@@ -250,7 +254,7 @@ uint64 ComputeSumSquareErrorPlane(const uint8* src_a,
> }
> 
> LIBYUV_API
>-double SumSquareErrorToPsnr(uint64 sse, uint64 count) {
>+double SumSquareErrorToPsnr(uint64_t sse, uint64_t count) {
>   double psnr;
>   if (sse > 0) {
>     double mse = (double)count / (double)sse;
>@@ -259,65 +263,67 @@ double SumSquareErrorToPsnr(uint64 sse, uint64 count) {
>     psnr = kMaxPsnr;  // Limit to prevent divide by 0
>   }
> 
>-  if (psnr > kMaxPsnr)
>+  if (psnr > kMaxPsnr) {
>     psnr = kMaxPsnr;
>+  }
> 
>   return psnr;
> }
> 
> LIBYUV_API
>-double CalcFramePsnr(const uint8* src_a,
>+double CalcFramePsnr(const uint8_t* src_a,
>                      int stride_a,
>-                     const uint8* src_b,
>+                     const uint8_t* src_b,
>                      int stride_b,
>                      int width,
>                      int height) {
>-  const uint64 samples = width * height;
>-  const uint64 sse = ComputeSumSquareErrorPlane(src_a, stride_a, src_b,
>-                                                stride_b, width, height);
>+  const uint64_t samples = (uint64_t)width * (uint64_t)height;
>+  const uint64_t sse = ComputeSumSquareErrorPlane(src_a, stride_a, src_b,
>+                                                  stride_b, width, height);
>   return SumSquareErrorToPsnr(sse, samples);
> }
> 
> LIBYUV_API
>-double I420Psnr(const uint8* src_y_a,
>+double I420Psnr(const uint8_t* src_y_a,
>                 int stride_y_a,
>-                const uint8* src_u_a,
>+                const uint8_t* src_u_a,
>                 int stride_u_a,
>-                const uint8* src_v_a,
>+                const uint8_t* src_v_a,
>                 int stride_v_a,
>-                const uint8* src_y_b,
>+                const uint8_t* src_y_b,
>                 int stride_y_b,
>-                const uint8* src_u_b,
>+                const uint8_t* src_u_b,
>                 int stride_u_b,
>-                const uint8* src_v_b,
>+                const uint8_t* src_v_b,
>                 int stride_v_b,
>                 int width,
>                 int height) {
>-  const uint64 sse_y = ComputeSumSquareErrorPlane(src_y_a, stride_y_a, src_y_b,
>-                                                  stride_y_b, width, height);
>+  const uint64_t sse_y = ComputeSumSquareErrorPlane(
>+      src_y_a, stride_y_a, src_y_b, stride_y_b, width, height);
>   const int width_uv = (width + 1) >> 1;
>   const int height_uv = (height + 1) >> 1;
>-  const uint64 sse_u = ComputeSumSquareErrorPlane(
>+  const uint64_t sse_u = ComputeSumSquareErrorPlane(
>       src_u_a, stride_u_a, src_u_b, stride_u_b, width_uv, height_uv);
>-  const uint64 sse_v = ComputeSumSquareErrorPlane(
>+  const uint64_t sse_v = ComputeSumSquareErrorPlane(
>       src_v_a, stride_v_a, src_v_b, stride_v_b, width_uv, height_uv);
>-  const uint64 samples = width * height + 2 * (width_uv * height_uv);
>-  const uint64 sse = sse_y + sse_u + sse_v;
>+  const uint64_t samples = (uint64_t)width * (uint64_t)height +
>+                           2 * ((uint64_t)width_uv * (uint64_t)height_uv);
>+  const uint64_t sse = sse_y + sse_u + sse_v;
>   return SumSquareErrorToPsnr(sse, samples);
> }
> 
>-static const int64 cc1 = 26634;   // (64^2*(.01*255)^2
>-static const int64 cc2 = 239708;  // (64^2*(.03*255)^2
>+static const int64_t cc1 = 26634;   // (64^2*(.01*255)^2
>+static const int64_t cc2 = 239708;  // (64^2*(.03*255)^2
> 
>-static double Ssim8x8_C(const uint8* src_a,
>+static double Ssim8x8_C(const uint8_t* src_a,
>                         int stride_a,
>-                        const uint8* src_b,
>+                        const uint8_t* src_b,
>                         int stride_b) {
>-  int64 sum_a = 0;
>-  int64 sum_b = 0;
>-  int64 sum_sq_a = 0;
>-  int64 sum_sq_b = 0;
>-  int64 sum_axb = 0;
>+  int64_t sum_a = 0;
>+  int64_t sum_b = 0;
>+  int64_t sum_sq_a = 0;
>+  int64_t sum_sq_b = 0;
>+  int64_t sum_axb = 0;
> 
>   int i;
>   for (i = 0; i < 8; ++i) {
>@@ -335,20 +341,20 @@ static double Ssim8x8_C(const uint8* src_a,
>   }
> 
>   {
>-    const int64 count = 64;
>+    const int64_t count = 64;
>     // scale the constants by number of pixels
>-    const int64 c1 = (cc1 * count * count) >> 12;
>-    const int64 c2 = (cc2 * count * count) >> 12;
>+    const int64_t c1 = (cc1 * count * count) >> 12;
>+    const int64_t c2 = (cc2 * count * count) >> 12;
> 
>-    const int64 sum_a_x_sum_b = sum_a * sum_b;
>+    const int64_t sum_a_x_sum_b = sum_a * sum_b;
> 
>-    const int64 ssim_n = (2 * sum_a_x_sum_b + c1) *
>-                         (2 * count * sum_axb - 2 * sum_a_x_sum_b + c2);
>+    const int64_t ssim_n = (2 * sum_a_x_sum_b + c1) *
>+                           (2 * count * sum_axb - 2 * sum_a_x_sum_b + c2);
> 
>-    const int64 sum_a_sq = sum_a * sum_a;
>-    const int64 sum_b_sq = sum_b * sum_b;
>+    const int64_t sum_a_sq = sum_a * sum_a;
>+    const int64_t sum_b_sq = sum_b * sum_b;
> 
>-    const int64 ssim_d =
>+    const int64_t ssim_d =
>         (sum_a_sq + sum_b_sq + c1) *
>         (count * sum_sq_a - sum_a_sq + count * sum_sq_b - sum_b_sq + c2);
> 
>@@ -363,15 +369,15 @@ static double Ssim8x8_C(const uint8* src_a,
> // on the 4x4 pixel grid. Such arrangement allows the windows to overlap
> // block boundaries to penalize blocking artifacts.
> LIBYUV_API
>-double CalcFrameSsim(const uint8* src_a,
>+double CalcFrameSsim(const uint8_t* src_a,
>                      int stride_a,
>-                     const uint8* src_b,
>+                     const uint8_t* src_b,
>                      int stride_b,
>                      int width,
>                      int height) {
>   int samples = 0;
>   double ssim_total = 0;
>-  double (*Ssim8x8)(const uint8* src_a, int stride_a, const uint8* src_b,
>+  double (*Ssim8x8)(const uint8_t* src_a, int stride_a, const uint8_t* src_b,
>                     int stride_b) = Ssim8x8_C;
> 
>   // sample point start with each 4x4 location
>@@ -392,17 +398,17 @@ double CalcFrameSsim(const uint8* src_a,
> }
> 
> LIBYUV_API
>-double I420Ssim(const uint8* src_y_a,
>+double I420Ssim(const uint8_t* src_y_a,
>                 int stride_y_a,
>-                const uint8* src_u_a,
>+                const uint8_t* src_u_a,
>                 int stride_u_a,
>-                const uint8* src_v_a,
>+                const uint8_t* src_v_a,
>                 int stride_v_a,
>-                const uint8* src_y_b,
>+                const uint8_t* src_y_b,
>                 int stride_y_b,
>-                const uint8* src_u_b,
>+                const uint8_t* src_u_b,
>                 int stride_u_b,
>-                const uint8* src_v_b,
>+                const uint8_t* src_v_b,
>                 int stride_v_b,
>                 int width,
>                 int height) {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_common.cc
>index 83564a1bcb5a98b63ad963abcc9b6c55562a4451..633466addb53e48b4ae839187c6b59cdd23c8eb6 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_common.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_common.cc
>@@ -18,8 +18,10 @@ extern "C" {
> #endif
> 
> #if ORIGINAL_OPT
>-uint32 HammingDistance_C1(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_C1(const uint8_t* src_a,
>+                            const uint8_t* src_b,
>+                            int count) {
>+  uint32_t diff = 0u;
> 
>   int i;
>   for (i = 0; i < count; ++i) {
>@@ -46,13 +48,15 @@ uint32 HammingDistance_C1(const uint8* src_a, const uint8* src_b, int count) {
> #endif
> 
> // Hakmem method for hamming distance.
>-uint32 HammingDistance_C(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_C(const uint8_t* src_a,
>+                           const uint8_t* src_b,
>+                           int count) {
>+  uint32_t diff = 0u;
> 
>   int i;
>   for (i = 0; i < count - 3; i += 4) {
>-    uint32 x = *((uint32*)src_a) ^ *((uint32*)src_b);
>-    uint32 u = x - ((x >> 1) & 0x55555555);
>+    uint32_t x = *((uint32_t*)src_a) ^ *((uint32_t*)src_b);  // NOLINT
>+    uint32_t u = x - ((x >> 1) & 0x55555555);
>     u = ((u >> 2) & 0x33333333) + (u & 0x33333333);
>     diff += ((((u + (u >> 4)) & 0x0f0f0f0f) * 0x01010101) >> 24);
>     src_a += 4;
>@@ -60,8 +64,8 @@ uint32 HammingDistance_C(const uint8* src_a, const uint8* src_b, int count) {
>   }
> 
>   for (; i < count; ++i) {
>-    uint32 x = *src_a ^ *src_b;
>-    uint32 u = x - ((x >> 1) & 0x55);
>+    uint32_t x = *src_a ^ *src_b;
>+    uint32_t u = x - ((x >> 1) & 0x55);
>     u = ((u >> 2) & 0x33) + (u & 0x33);
>     diff += (u + (u >> 4)) & 0x0f;
>     src_a += 1;
>@@ -71,20 +75,22 @@ uint32 HammingDistance_C(const uint8* src_a, const uint8* src_b, int count) {
>   return diff;
> }
> 
>-uint32 SumSquareError_C(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 sse = 0u;
>+uint32_t SumSquareError_C(const uint8_t* src_a,
>+                          const uint8_t* src_b,
>+                          int count) {
>+  uint32_t sse = 0u;
>   int i;
>   for (i = 0; i < count; ++i) {
>     int diff = src_a[i] - src_b[i];
>-    sse += (uint32)(diff * diff);
>+    sse += (uint32_t)(diff * diff);
>   }
>   return sse;
> }
> 
> // hash seed of 5381 recommended.
> // Internal C version of HashDjb2 with int sized count for efficiency.
>-uint32 HashDjb2_C(const uint8* src, int count, uint32 seed) {
>-  uint32 hash = seed;
>+uint32_t HashDjb2_C(const uint8_t* src, int count, uint32_t seed) {
>+  uint32_t hash = seed;
>   int i;
>   for (i = 0; i < count; ++i) {
>     hash += (hash << 5) + src[i];
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_gcc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_gcc.cc
>index 595c8ec4ae2aef0ba24f85d671e4197c0a37f4f7..676527c1b1b3b83fea70133153cd77a1c077ad4a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_gcc.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_gcc.cc
>@@ -23,10 +23,10 @@ extern "C" {
>     (defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER)))
> 
> #if defined(__x86_64__)
>-uint32 HammingDistance_SSE42(const uint8* src_a,
>-                             const uint8* src_b,
>-                             int count) {
>-  uint64 diff = 0u;
>+uint32_t HammingDistance_SSE42(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count) {
>+  uint64_t diff = 0u;
> 
>   asm volatile(
>       "xor        %3,%3                          \n"
>@@ -68,13 +68,13 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
>       :
>       : "memory", "cc", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10");
> 
>-  return static_cast<uint32>(diff);
>+  return static_cast<uint32_t>(diff);
> }
> #else
>-uint32 HammingDistance_SSE42(const uint8* src_a,
>-                             const uint8* src_b,
>-                             int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_SSE42(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count) {
>+  uint32_t diff = 0u;
> 
>   asm volatile(
>       // Process 16 bytes per loop.
>@@ -111,14 +111,14 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
> }
> #endif
> 
>-static vec8 kNibbleMask = {15, 15, 15, 15, 15, 15, 15, 15,
>-                           15, 15, 15, 15, 15, 15, 15, 15};
>-static vec8 kBitCount = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
>+static const vec8 kNibbleMask = {15, 15, 15, 15, 15, 15, 15, 15,
>+                                 15, 15, 15, 15, 15, 15, 15, 15};
>+static const vec8 kBitCount = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
> 
>-uint32 HammingDistance_SSSE3(const uint8* src_a,
>-                             const uint8* src_b,
>-                             int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_SSSE3(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count) {
>+  uint32_t diff = 0u;
> 
>   asm volatile(
>       "movdqa     %4,%%xmm2                      \n"
>@@ -174,8 +174,10 @@ uint32 HammingDistance_SSSE3(const uint8* src_a,
> }
> 
> #ifdef HAS_HAMMINGDISTANCE_AVX2
>-uint32 HammingDistance_AVX2(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_AVX2(const uint8_t* src_a,
>+                              const uint8_t* src_b,
>+                              int count) {
>+  uint32_t diff = 0u;
> 
>   asm volatile(
>       "vbroadcastf128 %4,%%ymm2                  \n"
>@@ -227,124 +229,127 @@ uint32 HammingDistance_AVX2(const uint8* src_a, const uint8* src_b, int count) {
> }
> #endif  // HAS_HAMMINGDISTANCE_AVX2
> 
>-uint32 SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 sse;
>-  asm volatile (
>-    "pxor      %%xmm0,%%xmm0                   \n"
>-    "pxor      %%xmm5,%%xmm5                   \n"
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x10, 0) ",%0          \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x10, 1) ",%1          \n"
>-    "movdqa    %%xmm1,%%xmm3                   \n"
>-    "psubusb   %%xmm2,%%xmm1                   \n"
>-    "psubusb   %%xmm3,%%xmm2                   \n"
>-    "por       %%xmm2,%%xmm1                   \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "punpckhbw %%xmm5,%%xmm2                   \n"
>-    "pmaddwd   %%xmm1,%%xmm1                   \n"
>-    "pmaddwd   %%xmm2,%%xmm2                   \n"
>-    "paddd     %%xmm1,%%xmm0                   \n"
>-    "paddd     %%xmm2,%%xmm0                   \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>+uint32_t SumSquareError_SSE2(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count) {
>+  uint32_t sse;
>+  asm volatile(
>+      "pxor      %%xmm0,%%xmm0                   \n"
>+      "pxor      %%xmm5,%%xmm5                   \n"
> 
>-    "pshufd    $0xee,%%xmm0,%%xmm1             \n"
>-    "paddd     %%xmm1,%%xmm0                   \n"
>-    "pshufd    $0x1,%%xmm0,%%xmm1              \n"
>-    "paddd     %%xmm1,%%xmm0                   \n"
>-    "movd      %%xmm0,%3                       \n"
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqu    (%1),%%xmm2                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "movdqa    %%xmm1,%%xmm3                   \n"
>+      "psubusb   %%xmm2,%%xmm1                   \n"
>+      "psubusb   %%xmm3,%%xmm2                   \n"
>+      "por       %%xmm2,%%xmm1                   \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "punpckhbw %%xmm5,%%xmm2                   \n"
>+      "pmaddwd   %%xmm1,%%xmm1                   \n"
>+      "pmaddwd   %%xmm2,%%xmm2                   \n"
>+      "paddd     %%xmm1,%%xmm0                   \n"
>+      "paddd     %%xmm2,%%xmm0                   \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
> 
>-  : "+r"(src_a),      // %0
>-    "+r"(src_b),      // %1
>-    "+r"(count),      // %2
>-    "=g"(sse)         // %3
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      "pshufd    $0xee,%%xmm0,%%xmm1             \n"
>+      "paddd     %%xmm1,%%xmm0                   \n"
>+      "pshufd    $0x1,%%xmm0,%%xmm1              \n"
>+      "paddd     %%xmm1,%%xmm0                   \n"
>+      "movd      %%xmm0,%3                       \n"
>+
>+      : "+r"(src_a),  // %0
>+        "+r"(src_b),  // %1
>+        "+r"(count),  // %2
>+        "=g"(sse)     // %3
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
>   return sse;
> }
> 
>-static uvec32 kHash16x33 = {0x92d9e201, 0, 0, 0};  // 33 ^ 16
>-static uvec32 kHashMul0 = {
>+static const uvec32 kHash16x33 = {0x92d9e201, 0, 0, 0};  // 33 ^ 16
>+static const uvec32 kHashMul0 = {
>     0x0c3525e1,  // 33 ^ 15
>     0xa3476dc1,  // 33 ^ 14
>     0x3b4039a1,  // 33 ^ 13
>     0x4f5f0981,  // 33 ^ 12
> };
>-static uvec32 kHashMul1 = {
>+static const uvec32 kHashMul1 = {
>     0x30f35d61,  // 33 ^ 11
>     0x855cb541,  // 33 ^ 10
>     0x040a9121,  // 33 ^ 9
>     0x747c7101,  // 33 ^ 8
> };
>-static uvec32 kHashMul2 = {
>+static const uvec32 kHashMul2 = {
>     0xec41d4e1,  // 33 ^ 7
>     0x4cfa3cc1,  // 33 ^ 6
>     0x025528a1,  // 33 ^ 5
>     0x00121881,  // 33 ^ 4
> };
>-static uvec32 kHashMul3 = {
>+static const uvec32 kHashMul3 = {
>     0x00008c61,  // 33 ^ 3
>     0x00000441,  // 33 ^ 2
>     0x00000021,  // 33 ^ 1
>     0x00000001,  // 33 ^ 0
> };
> 
>-uint32 HashDjb2_SSE41(const uint8* src, int count, uint32 seed) {
>-  uint32 hash;
>-  asm volatile (
>-    "movd      %2,%%xmm0                       \n"
>-    "pxor      %%xmm7,%%xmm7                   \n"
>-    "movdqa    %4,%%xmm6                       \n"
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x10, 0) ",%0          \n"
>-    "pmulld    %%xmm6,%%xmm0                   \n"
>-    "movdqa    %5,%%xmm5                       \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "punpcklbw %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm2,%%xmm3                   \n"
>-    "punpcklwd %%xmm7,%%xmm3                   \n"
>-    "pmulld    %%xmm5,%%xmm3                   \n"
>-    "movdqa    %6,%%xmm5                       \n"
>-    "movdqa    %%xmm2,%%xmm4                   \n"
>-    "punpckhwd %%xmm7,%%xmm4                   \n"
>-    "pmulld    %%xmm5,%%xmm4                   \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "punpckhbw %%xmm7,%%xmm1                   \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "punpcklwd %%xmm7,%%xmm2                   \n"
>-    "pmulld    %%xmm5,%%xmm2                   \n"
>-    "movdqa    %8,%%xmm5                       \n"
>-    "punpckhwd %%xmm7,%%xmm1                   \n"
>-    "pmulld    %%xmm5,%%xmm1                   \n"
>-    "paddd     %%xmm4,%%xmm3                   \n"
>-    "paddd     %%xmm2,%%xmm1                   \n"
>-    "paddd     %%xmm3,%%xmm1                   \n"
>-    "pshufd    $0xe,%%xmm1,%%xmm2              \n"
>-    "paddd     %%xmm2,%%xmm1                   \n"
>-    "pshufd    $0x1,%%xmm1,%%xmm2              \n"
>-    "paddd     %%xmm2,%%xmm1                   \n"
>-    "paddd     %%xmm1,%%xmm0                   \n"
>-    "sub       $0x10,%1                        \n"
>-    "jg        1b                              \n"
>-    "movd      %%xmm0,%3                       \n"
>-  : "+r"(src),        // %0
>-    "+r"(count),      // %1
>-    "+rm"(seed),      // %2
>-    "=g"(hash)        // %3
>-  : "m"(kHash16x33),  // %4
>-    "m"(kHashMul0),   // %5
>-    "m"(kHashMul1),   // %6
>-    "m"(kHashMul2),   // %7
>-    "m"(kHashMul3)    // %8
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+uint32_t HashDjb2_SSE41(const uint8_t* src, int count, uint32_t seed) {
>+  uint32_t hash;
>+  asm volatile(
>+      "movd      %2,%%xmm0                       \n"
>+      "pxor      %%xmm7,%%xmm7                   \n"
>+      "movdqa    %4,%%xmm6                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "pmulld    %%xmm6,%%xmm0                   \n"
>+      "movdqa    %5,%%xmm5                       \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "punpcklbw %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm2,%%xmm3                   \n"
>+      "punpcklwd %%xmm7,%%xmm3                   \n"
>+      "pmulld    %%xmm5,%%xmm3                   \n"
>+      "movdqa    %6,%%xmm5                       \n"
>+      "movdqa    %%xmm2,%%xmm4                   \n"
>+      "punpckhwd %%xmm7,%%xmm4                   \n"
>+      "pmulld    %%xmm5,%%xmm4                   \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "punpckhbw %%xmm7,%%xmm1                   \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "punpcklwd %%xmm7,%%xmm2                   \n"
>+      "pmulld    %%xmm5,%%xmm2                   \n"
>+      "movdqa    %8,%%xmm5                       \n"
>+      "punpckhwd %%xmm7,%%xmm1                   \n"
>+      "pmulld    %%xmm5,%%xmm1                   \n"
>+      "paddd     %%xmm4,%%xmm3                   \n"
>+      "paddd     %%xmm2,%%xmm1                   \n"
>+      "paddd     %%xmm3,%%xmm1                   \n"
>+      "pshufd    $0xe,%%xmm1,%%xmm2              \n"
>+      "paddd     %%xmm2,%%xmm1                   \n"
>+      "pshufd    $0x1,%%xmm1,%%xmm2              \n"
>+      "paddd     %%xmm2,%%xmm1                   \n"
>+      "paddd     %%xmm1,%%xmm0                   \n"
>+      "sub       $0x10,%1                        \n"
>+      "jg        1b                              \n"
>+      "movd      %%xmm0,%3                       \n"
>+      : "+r"(src),        // %0
>+        "+r"(count),      // %1
>+        "+rm"(seed),      // %2
>+        "=g"(hash)        // %3
>+      : "m"(kHash16x33),  // %4
>+        "m"(kHashMul0),   // %5
>+        "m"(kHashMul1),   // %6
>+        "m"(kHashMul2),   // %7
>+        "m"(kHashMul3)    // %8
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
>   return hash;
> }
> #endif  // defined(__x86_64__) || (defined(__i386__) && !defined(__pic__)))
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_msa.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_msa.cc
>index efb5185aac7ea31dee05bf86e08234d225caee14..e944235f02060baaae70f29da4c427d549dd810c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_msa.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_msa.cc
>@@ -22,8 +22,10 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-uint32 HammingDistance_MSA(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_MSA(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count) {
>+  uint32_t diff = 0u;
>   int i;
>   v16u8 src0, src1, src2, src3;
>   v2i64 vec0 = {0}, vec1 = {0};
>@@ -42,13 +44,15 @@ uint32 HammingDistance_MSA(const uint8* src_a, const uint8* src_b, int count) {
>   }
> 
>   vec0 += vec1;
>-  diff = (uint32)__msa_copy_u_w((v4i32)vec0, 0);
>-  diff += (uint32)__msa_copy_u_w((v4i32)vec0, 2);
>+  diff = (uint32_t)__msa_copy_u_w((v4i32)vec0, 0);
>+  diff += (uint32_t)__msa_copy_u_w((v4i32)vec0, 2);
>   return diff;
> }
> 
>-uint32 SumSquareError_MSA(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 sse = 0u;
>+uint32_t SumSquareError_MSA(const uint8_t* src_a,
>+                            const uint8_t* src_b,
>+                            int count) {
>+  uint32_t sse = 0u;
>   int i;
>   v16u8 src0, src1, src2, src3;
>   v8i16 vec0, vec1, vec2, vec3;
>@@ -80,8 +84,8 @@ uint32 SumSquareError_MSA(const uint8* src_a, const uint8* src_b, int count) {
>   reg2 += reg3;
>   reg0 += reg2;
>   tmp0 = __msa_hadd_s_d(reg0, reg0);
>-  sse = (uint32)__msa_copy_u_w((v4i32)tmp0, 0);
>-  sse += (uint32)__msa_copy_u_w((v4i32)tmp0, 2);
>+  sse = (uint32_t)__msa_copy_u_w((v4i32)tmp0, 0);
>+  sse += (uint32_t)__msa_copy_u_w((v4i32)tmp0, 2);
>   return sse;
> }
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon.cc
>index 5dfa71edcbfd1c1b991e0c4c1e70f31479e5a310..2a2181e0cb37fdd5ab68bcc6fa50d91b9e1a66d0 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon.cc
>@@ -23,8 +23,10 @@ extern "C" {
> 
> // 256 bits at a time
> // uses short accumulator which restricts count to 131 KB
>-uint32 HammingDistance_NEON(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff;
>+uint32_t HammingDistance_NEON(const uint8_t* src_a,
>+                              const uint8_t* src_b,
>+                              int count) {
>+  uint32_t diff;
> 
>   asm volatile(
>       "vmov.u16   q4, #0                         \n"  // accumulator
>@@ -52,8 +54,10 @@ uint32 HammingDistance_NEON(const uint8* src_a, const uint8* src_b, int count) {
>   return diff;
> }
> 
>-uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 sse;
>+uint32_t SumSquareError_NEON(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count) {
>+  uint32_t sse;
>   asm volatile(
>       "vmov.u8    q8, #0                         \n"
>       "vmov.u8    q10, #0                        \n"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon64.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon64.cc
>index ddf98fa68b2ba057aca4d8c7ebb92d7b00b01410..6e8f672ab73ae41cc6e30c6c508f3093650edbff 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon64.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_neon64.cc
>@@ -22,8 +22,10 @@ extern "C" {
> 
> // 256 bits at a time
> // uses short accumulator which restricts count to 131 KB
>-uint32 HammingDistance_NEON(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 diff;
>+uint32_t HammingDistance_NEON(const uint8_t* src_a,
>+                              const uint8_t* src_b,
>+                              int count) {
>+  uint32_t diff;
>   asm volatile(
>       "movi       v4.8h, #0                      \n"
> 
>@@ -47,8 +49,10 @@ uint32 HammingDistance_NEON(const uint8* src_a, const uint8* src_b, int count) {
>   return diff;
> }
> 
>-uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) {
>-  uint32 sse;
>+uint32_t SumSquareError_NEON(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count) {
>+  uint32_t sse;
>   asm volatile(
>       "eor        v16.16b, v16.16b, v16.16b      \n"
>       "eor        v18.16b, v18.16b, v18.16b      \n"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_win.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_win.cc
>index bcd6a88ebbb753ddfc39f8fb3a1c9b51a32022df..d57d3d9d1c8edf3cbc94bc73c28de1c3081c5b95 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_win.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/compare_win.cc
>@@ -25,14 +25,14 @@ extern "C" {
> // This module is for 32 bit Visual C x86 and clangcl
> #if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
> 
>-uint32 HammingDistance_SSE42(const uint8* src_a,
>-                             const uint8* src_b,
>-                             int count) {
>-  uint32 diff = 0u;
>+uint32_t HammingDistance_SSE42(const uint8_t* src_a,
>+                               const uint8_t* src_b,
>+                               int count) {
>+  uint32_t diff = 0u;
> 
>   int i;
>   for (i = 0; i < count - 3; i += 4) {
>-    uint32 x = *((uint32*)src_a) ^ *((uint32*)src_b);
>+    uint32_t x = *((uint32_t*)src_a) ^ *((uint32_t*)src_b);  // NOLINT
>     src_a += 4;
>     src_b += 4;
>     diff += __popcnt(x);
>@@ -40,8 +40,8 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
>   return diff;
> }
> 
>-__declspec(naked) uint32
>-    SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count) {
>+__declspec(naked) uint32_t
>+    SumSquareError_SSE2(const uint8_t* src_a, const uint8_t* src_b, int count) {
>   __asm {
>     mov        eax, [esp + 4]  // src_a
>     mov        edx, [esp + 8]  // src_b
>@@ -81,8 +81,8 @@ __declspec(naked) uint32
> #if _MSC_VER >= 1700
> // C4752: found Intel(R) Advanced Vector Extensions; consider using /arch:AVX.
> #pragma warning(disable : 4752)
>-__declspec(naked) uint32
>-    SumSquareError_AVX2(const uint8* src_a, const uint8* src_b, int count) {
>+__declspec(naked) uint32_t
>+    SumSquareError_AVX2(const uint8_t* src_a, const uint8_t* src_b, int count) {
>   __asm {
>     mov        eax, [esp + 4]  // src_a
>     mov        edx, [esp + 8]  // src_b
>@@ -146,8 +146,8 @@ uvec32 kHashMul3 = {
>     0x00000001,  // 33 ^ 0
> };
> 
>-__declspec(naked) uint32
>-    HashDjb2_SSE41(const uint8* src, int count, uint32 seed) {
>+__declspec(naked) uint32_t
>+    HashDjb2_SSE41(const uint8_t* src, int count, uint32_t seed) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        ecx, [esp + 8]  // count
>@@ -197,8 +197,8 @@ __declspec(naked) uint32
> 
> // Visual C 2012 required for AVX2.
> #if _MSC_VER >= 1700
>-__declspec(naked) uint32
>-    HashDjb2_AVX2(const uint8* src, int count, uint32 seed) {
>+__declspec(naked) uint32_t
>+    HashDjb2_AVX2(const uint8_t* src, int count, uint32_t seed) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        ecx, [esp + 8]  // count
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert.cc
>index dfa83a5a6d8680df1e066b8e4339d527b3e298fc..375cc732c1d710ebd8ccbc44ac1d4ff4a8a81e2f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert.cc
>@@ -28,17 +28,17 @@ static __inline int Abs(int v) {
> }
> 
> // Any I4xx To I420 format with mirroring.
>-static int I4xxToI420(const uint8* src_y,
>+static int I4xxToI420(const uint8_t* src_y,
>                       int src_stride_y,
>-                      const uint8* src_u,
>+                      const uint8_t* src_u,
>                       int src_stride_u,
>-                      const uint8* src_v,
>+                      const uint8_t* src_v,
>                       int src_stride_v,
>-                      uint8* dst_y,
>+                      uint8_t* dst_y,
>                       int dst_stride_y,
>-                      uint8* dst_u,
>+                      uint8_t* dst_u,
>                       int dst_stride_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_v,
>                       int dst_stride_v,
>                       int src_y_width,
>                       int src_y_height,
>@@ -62,21 +62,21 @@ static int I4xxToI420(const uint8* src_y,
>   return 0;
> }
> 
>-// Copy I420 with optional flipping
>+// Copy I420 with optional flipping.
> // TODO(fbarchard): Use Scale plane which supports mirroring, but ensure
> // is does row coalescing.
> LIBYUV_API
>-int I420Copy(const uint8* src_y,
>+int I420Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height) {
>@@ -106,20 +106,106 @@ int I420Copy(const uint8* src_y,
>   return 0;
> }
> 
>+// Copy I010 with optional flipping.
>+LIBYUV_API
>+int I010Copy(const uint16_t* src_y,
>+             int src_stride_y,
>+             const uint16_t* src_u,
>+             int src_stride_u,
>+             const uint16_t* src_v,
>+             int src_stride_v,
>+             uint16_t* dst_y,
>+             int dst_stride_y,
>+             uint16_t* dst_u,
>+             int dst_stride_u,
>+             uint16_t* dst_v,
>+             int dst_stride_v,
>+             int width,
>+             int height) {
>+  int halfwidth = (width + 1) >> 1;
>+  int halfheight = (height + 1) >> 1;
>+  if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    halfheight = (height + 1) >> 1;
>+    src_y = src_y + (height - 1) * src_stride_y;
>+    src_u = src_u + (halfheight - 1) * src_stride_u;
>+    src_v = src_v + (halfheight - 1) * src_stride_v;
>+    src_stride_y = -src_stride_y;
>+    src_stride_u = -src_stride_u;
>+    src_stride_v = -src_stride_v;
>+  }
>+
>+  if (dst_y) {
>+    CopyPlane_16(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
>+  }
>+  // Copy UV planes.
>+  CopyPlane_16(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, halfheight);
>+  CopyPlane_16(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, halfheight);
>+  return 0;
>+}
>+
>+// Convert 10 bit YUV to 8 bit.
>+LIBYUV_API
>+int I010ToI420(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_y,
>+               int dst_stride_y,
>+               uint8_t* dst_u,
>+               int dst_stride_u,
>+               uint8_t* dst_v,
>+               int dst_stride_v,
>+               int width,
>+               int height) {
>+  int halfwidth = (width + 1) >> 1;
>+  int halfheight = (height + 1) >> 1;
>+  if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    halfheight = (height + 1) >> 1;
>+    src_y = src_y + (height - 1) * src_stride_y;
>+    src_u = src_u + (halfheight - 1) * src_stride_u;
>+    src_v = src_v + (halfheight - 1) * src_stride_v;
>+    src_stride_y = -src_stride_y;
>+    src_stride_u = -src_stride_u;
>+    src_stride_v = -src_stride_v;
>+  }
>+
>+  // Convert Y plane.
>+  Convert16To8Plane(src_y, src_stride_y, dst_y, dst_stride_y, 16384, width,
>+                    height);
>+  // Convert UV planes.
>+  Convert16To8Plane(src_u, src_stride_u, dst_u, dst_stride_u, 16384, halfwidth,
>+                    halfheight);
>+  Convert16To8Plane(src_v, src_stride_v, dst_v, dst_stride_v, 16384, halfwidth,
>+                    halfheight);
>+  return 0;
>+}
>+
> // 422 chroma is 1/2 width, 1x height
> // 420 chroma is 1/2 width, 1/2 height
> LIBYUV_API
>-int I422ToI420(const uint8* src_y,
>+int I422ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -132,17 +218,17 @@ int I422ToI420(const uint8* src_y,
> // 444 chroma is 1x width, 1x height
> // 420 chroma is 1/2 width, 1/2 height
> LIBYUV_API
>-int I444ToI420(const uint8* src_y,
>+int I444ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -153,13 +239,13 @@ int I444ToI420(const uint8* src_y,
> 
> // I400 is greyscale typically used in MJPG
> LIBYUV_API
>-int I400ToI420(const uint8* src_y,
>+int I400ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -183,15 +269,15 @@ int I400ToI420(const uint8* src_y,
>   return 0;
> }
> 
>-static void CopyPlane2(const uint8* src,
>+static void CopyPlane2(const uint8_t* src,
>                        int src_stride_0,
>                        int src_stride_1,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width,
>                        int height) {
>   int y;
>-  void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
>+  void (*CopyRow)(const uint8_t* src, uint8_t* dst, int width) = CopyRow_C;
> #if defined(HAS_COPYROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     CopyRow = IS_ALIGNED(width, 32) ? CopyRow_SSE2 : CopyRow_Any_SSE2;
>@@ -212,11 +298,6 @@ static void CopyPlane2(const uint8* src,
>     CopyRow = IS_ALIGNED(width, 32) ? CopyRow_NEON : CopyRow_Any_NEON;
>   }
> #endif
>-#if defined(HAS_COPYROW_MIPS)
>-  if (TestCpuFlag(kCpuHasMIPS)) {
>-    CopyRow = CopyRow_MIPS;
>-  }
>-#endif
> 
>   // Copy plane
>   for (y = 0; y < height - 1; y += 2) {
>@@ -239,16 +320,16 @@ static void CopyPlane2(const uint8* src,
> // src_stride_m420 is row planar. Normally this will be the width in pixels.
> //   The UV plane is half width, but 2 values, so src_stride_m420 applies to
> //   this as well as the two Y planes.
>-static int X420ToI420(const uint8* src_y,
>+static int X420ToI420(const uint8_t* src_y,
>                       int src_stride_y0,
>                       int src_stride_y1,
>-                      const uint8* src_uv,
>+                      const uint8_t* src_uv,
>                       int src_stride_uv,
>-                      uint8* dst_y,
>+                      uint8_t* dst_y,
>                       int dst_stride_y,
>-                      uint8* dst_u,
>+                      uint8_t* dst_u,
>                       int dst_stride_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_v,
>                       int dst_stride_v,
>                       int width,
>                       int height) {
>@@ -303,15 +384,15 @@ static int X420ToI420(const uint8* src_y,
> 
> // Convert NV12 to I420.
> LIBYUV_API
>-int NV12ToI420(const uint8* src_y,
>+int NV12ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_uv,
>+               const uint8_t* src_uv,
>                int src_stride_uv,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -322,15 +403,15 @@ int NV12ToI420(const uint8* src_y,
> 
> // Convert NV21 to I420.  Same as NV12 but u and v pointers swapped.
> LIBYUV_API
>-int NV21ToI420(const uint8* src_y,
>+int NV21ToI420(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_vu,
>+               const uint8_t* src_vu,
>                int src_stride_vu,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -341,13 +422,13 @@ int NV21ToI420(const uint8* src_y,
> 
> // Convert M420 to I420.
> LIBYUV_API
>-int M420ToI420(const uint8* src_m420,
>+int M420ToI420(const uint8_t* src_m420,
>                int src_stride_m420,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -359,20 +440,21 @@ int M420ToI420(const uint8* src_m420,
> 
> // Convert YUY2 to I420.
> LIBYUV_API
>-int YUY2ToI420(const uint8* src_yuy2,
>+int YUY2ToI420(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*YUY2ToUVRow)(const uint8* src_yuy2, int src_stride_yuy2, uint8* dst_u,
>-                      uint8* dst_v, int width) = YUY2ToUVRow_C;
>-  void (*YUY2ToYRow)(const uint8* src_yuy2, uint8* dst_y, int width) =
>+  void (*YUY2ToUVRow)(const uint8_t* src_yuy2, int src_stride_yuy2,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      YUY2ToUVRow_C;
>+  void (*YUY2ToYRow)(const uint8_t* src_yuy2, uint8_t* dst_y, int width) =
>       YUY2ToYRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>@@ -439,20 +521,21 @@ int YUY2ToI420(const uint8* src_yuy2,
> 
> // Convert UYVY to I420.
> LIBYUV_API
>-int UYVYToI420(const uint8* src_uyvy,
>+int UYVYToI420(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*UYVYToUVRow)(const uint8* src_uyvy, int src_stride_uyvy, uint8* dst_u,
>-                      uint8* dst_v, int width) = UYVYToUVRow_C;
>-  void (*UYVYToYRow)(const uint8* src_uyvy, uint8* dst_y, int width) =
>+  void (*UYVYToUVRow)(const uint8_t* src_uyvy, int src_stride_uyvy,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      UYVYToUVRow_C;
>+  void (*UYVYToYRow)(const uint8_t* src_uyvy, uint8_t* dst_y, int width) =
>       UYVYToYRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>@@ -519,20 +602,21 @@ int UYVYToI420(const uint8* src_uyvy,
> 
> // Convert ARGB to I420.
> LIBYUV_API
>-int ARGBToI420(const uint8* src_argb,
>+int ARGBToI420(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>   if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -579,14 +663,6 @@ int ARGBToI420(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGBTOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGBToYRow = ARGBToYRow_Any_MSA;
>@@ -595,14 +671,6 @@ int ARGBToI420(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGBTOUVROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGBToUVRow = ARGBToUVRow_Any_MSA;
>@@ -630,20 +698,21 @@ int ARGBToI420(const uint8* src_argb,
> 
> // Convert BGRA to I420.
> LIBYUV_API
>-int BGRAToI420(const uint8* src_bgra,
>+int BGRAToI420(const uint8_t* src_bgra,
>                int src_stride_bgra,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*BGRAToUVRow)(const uint8* src_bgra0, int src_stride_bgra, uint8* dst_u,
>-                      uint8* dst_v, int width) = BGRAToUVRow_C;
>-  void (*BGRAToYRow)(const uint8* src_bgra, uint8* dst_y, int width) =
>+  void (*BGRAToUVRow)(const uint8_t* src_bgra0, int src_stride_bgra,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      BGRAToUVRow_C;
>+  void (*BGRAToYRow)(const uint8_t* src_bgra, uint8_t* dst_y, int width) =
>       BGRAToYRow_C;
>   if (!src_bgra || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -680,22 +749,6 @@ int BGRAToI420(const uint8* src_bgra,
>     }
>   }
> #endif
>-#if defined(HAS_BGRATOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    BGRAToYRow = BGRAToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      BGRAToYRow = BGRAToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_BGRATOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    BGRAToUVRow = BGRAToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      BGRAToUVRow = BGRAToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_BGRATOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     BGRAToYRow = BGRAToYRow_Any_MSA;
>@@ -731,20 +784,21 @@ int BGRAToI420(const uint8* src_bgra,
> 
> // Convert ABGR to I420.
> LIBYUV_API
>-int ABGRToI420(const uint8* src_abgr,
>+int ABGRToI420(const uint8_t* src_abgr,
>                int src_stride_abgr,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ABGRToUVRow)(const uint8* src_abgr0, int src_stride_abgr, uint8* dst_u,
>-                      uint8* dst_v, int width) = ABGRToUVRow_C;
>-  void (*ABGRToYRow)(const uint8* src_abgr, uint8* dst_y, int width) =
>+  void (*ABGRToUVRow)(const uint8_t* src_abgr0, int src_stride_abgr,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ABGRToUVRow_C;
>+  void (*ABGRToYRow)(const uint8_t* src_abgr, uint8_t* dst_y, int width) =
>       ABGRToYRow_C;
>   if (!src_abgr || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -781,22 +835,6 @@ int ABGRToI420(const uint8* src_abgr,
>     }
>   }
> #endif
>-#if defined(HAS_ABGRTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ABGRToYRow = ABGRToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ABGRToYRow = ABGRToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ABGRTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ABGRToUVRow = ABGRToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ABGRToUVRow = ABGRToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ABGRTOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ABGRToYRow = ABGRToYRow_Any_MSA;
>@@ -832,20 +870,21 @@ int ABGRToI420(const uint8* src_abgr,
> 
> // Convert RGBA to I420.
> LIBYUV_API
>-int RGBAToI420(const uint8* src_rgba,
>+int RGBAToI420(const uint8_t* src_rgba,
>                int src_stride_rgba,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*RGBAToUVRow)(const uint8* src_rgba0, int src_stride_rgba, uint8* dst_u,
>-                      uint8* dst_v, int width) = RGBAToUVRow_C;
>-  void (*RGBAToYRow)(const uint8* src_rgba, uint8* dst_y, int width) =
>+  void (*RGBAToUVRow)(const uint8_t* src_rgba0, int src_stride_rgba,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      RGBAToUVRow_C;
>+  void (*RGBAToYRow)(const uint8_t* src_rgba, uint8_t* dst_y, int width) =
>       RGBAToYRow_C;
>   if (!src_rgba || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -882,22 +921,6 @@ int RGBAToI420(const uint8* src_rgba,
>     }
>   }
> #endif
>-#if defined(HAS_RGBATOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RGBAToYRow = RGBAToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      RGBAToYRow = RGBAToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_RGBATOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RGBAToUVRow = RGBAToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      RGBAToUVRow = RGBAToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_RGBATOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     RGBAToYRow = RGBAToYRow_Any_MSA;
>@@ -933,28 +956,30 @@ int RGBAToI420(const uint8* src_rgba,
> 
> // Convert RGB24 to I420.
> LIBYUV_API
>-int RGB24ToI420(const uint8* src_rgb24,
>+int RGB24ToI420(const uint8_t* src_rgb24,
>                 int src_stride_rgb24,
>-                uint8* dst_y,
>+                uint8_t* dst_y,
>                 int dst_stride_y,
>-                uint8* dst_u,
>+                uint8_t* dst_u,
>                 int dst_stride_u,
>-                uint8* dst_v,
>+                uint8_t* dst_v,
>                 int dst_stride_v,
>                 int width,
>                 int height) {
>   int y;
> #if (defined(HAS_RGB24TOYROW_NEON) || defined(HAS_RGB24TOYROW_MSA))
>-  void (*RGB24ToUVRow)(const uint8* src_rgb24, int src_stride_rgb24,
>-                       uint8* dst_u, uint8* dst_v, int width) = RGB24ToUVRow_C;
>-  void (*RGB24ToYRow)(const uint8* src_rgb24, uint8* dst_y, int width) =
>+  void (*RGB24ToUVRow)(const uint8_t* src_rgb24, int src_stride_rgb24,
>+                       uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      RGB24ToUVRow_C;
>+  void (*RGB24ToYRow)(const uint8_t* src_rgb24, uint8_t* dst_y, int width) =
>       RGB24ToYRow_C;
> #else
>-  void (*RGB24ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>+  void (*RGB24ToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb, int width) =
>       RGB24ToARGBRow_C;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
> #endif
>   if (!src_rgb24 || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>@@ -1063,28 +1088,29 @@ int RGB24ToI420(const uint8* src_rgb24,
> 
> // Convert RAW to I420.
> LIBYUV_API
>-int RAWToI420(const uint8* src_raw,
>+int RAWToI420(const uint8_t* src_raw,
>               int src_stride_raw,
>-              uint8* dst_y,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int width,
>               int height) {
>   int y;
> #if (defined(HAS_RAWTOYROW_NEON) || defined(HAS_RAWTOYROW_MSA))
>-  void (*RAWToUVRow)(const uint8* src_raw, int src_stride_raw, uint8* dst_u,
>-                     uint8* dst_v, int width) = RAWToUVRow_C;
>-  void (*RAWToYRow)(const uint8* src_raw, uint8* dst_y, int width) =
>+  void (*RAWToUVRow)(const uint8_t* src_raw, int src_stride_raw, uint8_t* dst_u,
>+                     uint8_t* dst_v, int width) = RAWToUVRow_C;
>+  void (*RAWToYRow)(const uint8_t* src_raw, uint8_t* dst_y, int width) =
>       RAWToYRow_C;
> #else
>-  void (*RAWToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>+  void (*RAWToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb, int width) =
>       RAWToARGBRow_C;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
> #endif
>   if (!src_raw || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>@@ -1193,29 +1219,30 @@ int RAWToI420(const uint8* src_raw,
> 
> // Convert RGB565 to I420.
> LIBYUV_API
>-int RGB565ToI420(const uint8* src_rgb565,
>+int RGB565ToI420(const uint8_t* src_rgb565,
>                  int src_stride_rgb565,
>-                 uint8* dst_y,
>+                 uint8_t* dst_y,
>                  int dst_stride_y,
>-                 uint8* dst_u,
>+                 uint8_t* dst_u,
>                  int dst_stride_u,
>-                 uint8* dst_v,
>+                 uint8_t* dst_v,
>                  int dst_stride_v,
>                  int width,
>                  int height) {
>   int y;
> #if (defined(HAS_RGB565TOYROW_NEON) || defined(HAS_RGB565TOYROW_MSA))
>-  void (*RGB565ToUVRow)(const uint8* src_rgb565, int src_stride_rgb565,
>-                        uint8* dst_u, uint8* dst_v, int width) =
>+  void (*RGB565ToUVRow)(const uint8_t* src_rgb565, int src_stride_rgb565,
>+                        uint8_t* dst_u, uint8_t* dst_v, int width) =
>       RGB565ToUVRow_C;
>-  void (*RGB565ToYRow)(const uint8* src_rgb565, uint8* dst_y, int width) =
>+  void (*RGB565ToYRow)(const uint8_t* src_rgb565, uint8_t* dst_y, int width) =
>       RGB565ToYRow_C;
> #else
>-  void (*RGB565ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>-      RGB565ToARGBRow_C;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*RGB565ToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb,
>+                          int width) = RGB565ToARGBRow_C;
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
> #endif
>   if (!src_rgb565 || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>@@ -1287,14 +1314,6 @@ int RGB565ToI420(const uint8* src_rgb565,
>     }
>   }
> #endif
>-#if defined(HAS_RGB565TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RGB565ToARGBRow = RGB565ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      RGB565ToARGBRow = RGB565ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #endif
>   {
> #if !(defined(HAS_RGB565TOYROW_NEON) || defined(HAS_RGB565TOYROW_MSA))
>@@ -1338,29 +1357,30 @@ int RGB565ToI420(const uint8* src_rgb565,
> 
> // Convert ARGB1555 to I420.
> LIBYUV_API
>-int ARGB1555ToI420(const uint8* src_argb1555,
>+int ARGB1555ToI420(const uint8_t* src_argb1555,
>                    int src_stride_argb1555,
>-                   uint8* dst_y,
>+                   uint8_t* dst_y,
>                    int dst_stride_y,
>-                   uint8* dst_u,
>+                   uint8_t* dst_u,
>                    int dst_stride_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_v,
>                    int dst_stride_v,
>                    int width,
>                    int height) {
>   int y;
> #if (defined(HAS_ARGB1555TOYROW_NEON) || defined(HAS_ARGB1555TOYROW_MSA))
>-  void (*ARGB1555ToUVRow)(const uint8* src_argb1555, int src_stride_argb1555,
>-                          uint8* dst_u, uint8* dst_v, int width) =
>+  void (*ARGB1555ToUVRow)(const uint8_t* src_argb1555, int src_stride_argb1555,
>+                          uint8_t* dst_u, uint8_t* dst_v, int width) =
>       ARGB1555ToUVRow_C;
>-  void (*ARGB1555ToYRow)(const uint8* src_argb1555, uint8* dst_y, int width) =
>-      ARGB1555ToYRow_C;
>+  void (*ARGB1555ToYRow)(const uint8_t* src_argb1555, uint8_t* dst_y,
>+                         int width) = ARGB1555ToYRow_C;
> #else
>-  void (*ARGB1555ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>-      ARGB1555ToARGBRow_C;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGB1555ToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb,
>+                            int width) = ARGB1555ToARGBRow_C;
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
> #endif
>   if (!src_argb1555 || !dst_y || !dst_u || !dst_v || width <= 0 ||
>@@ -1479,29 +1499,30 @@ int ARGB1555ToI420(const uint8* src_argb1555,
> 
> // Convert ARGB4444 to I420.
> LIBYUV_API
>-int ARGB4444ToI420(const uint8* src_argb4444,
>+int ARGB4444ToI420(const uint8_t* src_argb4444,
>                    int src_stride_argb4444,
>-                   uint8* dst_y,
>+                   uint8_t* dst_y,
>                    int dst_stride_y,
>-                   uint8* dst_u,
>+                   uint8_t* dst_u,
>                    int dst_stride_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_v,
>                    int dst_stride_v,
>                    int width,
>                    int height) {
>   int y;
> #if defined(HAS_ARGB4444TOYROW_NEON)
>-  void (*ARGB4444ToUVRow)(const uint8* src_argb4444, int src_stride_argb4444,
>-                          uint8* dst_u, uint8* dst_v, int width) =
>+  void (*ARGB4444ToUVRow)(const uint8_t* src_argb4444, int src_stride_argb4444,
>+                          uint8_t* dst_u, uint8_t* dst_v, int width) =
>       ARGB4444ToUVRow_C;
>-  void (*ARGB4444ToYRow)(const uint8* src_argb4444, uint8* dst_y, int width) =
>-      ARGB4444ToYRow_C;
>+  void (*ARGB4444ToYRow)(const uint8_t* src_argb4444, uint8_t* dst_y,
>+                         int width) = ARGB4444ToYRow_C;
> #else
>-  void (*ARGB4444ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>-      ARGB4444ToARGBRow_C;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGB4444ToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb,
>+                            int width) = ARGB4444ToARGBRow_C;
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
> #endif
>   if (!src_argb4444 || !dst_y || !dst_u || !dst_v || width <= 0 ||
>@@ -1630,9 +1651,9 @@ int ARGB4444ToI420(const uint8* src_argb4444,
>   return 0;
> }
> 
>-static void SplitPixels(const uint8* src_u,
>+static void SplitPixels(const uint8_t* src_u,
>                         int src_pixel_stride_uv,
>-                        uint8* dst_u,
>+                        uint8_t* dst_u,
>                         int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>@@ -1644,18 +1665,18 @@ static void SplitPixels(const uint8* src_u,
> 
> // Convert Android420 to I420.
> LIBYUV_API
>-int Android420ToI420(const uint8* src_y,
>+int Android420ToI420(const uint8_t* src_y,
>                      int src_stride_y,
>-                     const uint8* src_u,
>+                     const uint8_t* src_u,
>                      int src_stride_u,
>-                     const uint8* src_v,
>+                     const uint8_t* src_v,
>                      int src_stride_v,
>                      int src_pixel_stride_uv,
>-                     uint8* dst_y,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>-                     uint8* dst_u,
>+                     uint8_t* dst_u,
>                      int dst_stride_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_v,
>                      int dst_stride_v,
>                      int width,
>                      int height) {
>@@ -1688,14 +1709,15 @@ int Android420ToI420(const uint8* src_y,
>     CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, halfheight);
>     return 0;
>     // Split UV planes - NV21
>-  } else if (src_pixel_stride_uv == 2 && vu_off == -1 &&
>-             src_stride_u == src_stride_v) {
>+  }
>+  if (src_pixel_stride_uv == 2 && vu_off == -1 &&
>+      src_stride_u == src_stride_v) {
>     SplitUVPlane(src_v, src_stride_v, dst_v, dst_stride_v, dst_u, dst_stride_u,
>                  halfwidth, halfheight);
>     return 0;
>     // Split UV planes - NV12
>-  } else if (src_pixel_stride_uv == 2 && vu_off == 1 &&
>-             src_stride_u == src_stride_v) {
>+  }
>+  if (src_pixel_stride_uv == 2 && vu_off == 1 && src_stride_u == src_stride_v) {
>     SplitUVPlane(src_u, src_stride_u, dst_u, dst_stride_u, dst_v, dst_stride_v,
>                  halfwidth, halfheight);
>     return 0;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_argb.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_argb.cc
>index 5007bdb970877d9a34f7e3747c07cadb44123474..4c317ae30c68d61d00fad58c4b3e8a62d8c33b04 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_argb.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_argb.cc
>@@ -26,9 +26,9 @@ extern "C" {
> 
> // Copy ARGB with optional flipping
> LIBYUV_API
>-int ARGBCopy(const uint8* src_argb,
>+int ARGBCopy(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>              int width,
>              int height) {
>@@ -47,21 +47,21 @@ int ARGBCopy(const uint8* src_argb,
>   return 0;
> }
> 
>-// Convert I422 to ARGB with matrix
>-static int I420ToARGBMatrix(const uint8* src_y,
>+// Convert I420 to ARGB with matrix
>+static int I420ToARGBMatrix(const uint8_t* src_y,
>                             int src_stride_y,
>-                            const uint8* src_u,
>+                            const uint8_t* src_u,
>                             int src_stride_u,
>-                            const uint8* src_v,
>+                            const uint8_t* src_v,
>                             int src_stride_v,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_stride_argb,
>                             const struct YuvConstants* yuvconstants,
>                             int width,
>                             int height) {
>   int y;
>-  void (*I422ToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I422ToARGBRow_C;
>   if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>@@ -97,15 +97,6 @@ static int I420ToARGBMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
>-    I422ToARGBRow = I422ToARGBRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGBRow = I422ToARGBRow_Any_MSA;
>@@ -129,13 +120,13 @@ static int I420ToARGBMatrix(const uint8* src_y,
> 
> // Convert I420 to ARGB.
> LIBYUV_API
>-int I420ToARGB(const uint8* src_y,
>+int I420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -146,13 +137,13 @@ int I420ToARGB(const uint8* src_y,
> 
> // Convert I420 to ABGR.
> LIBYUV_API
>-int I420ToABGR(const uint8* src_y,
>+int I420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -165,13 +156,13 @@ int I420ToABGR(const uint8* src_y,
> 
> // Convert J420 to ARGB.
> LIBYUV_API
>-int J420ToARGB(const uint8* src_y,
>+int J420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -182,13 +173,13 @@ int J420ToARGB(const uint8* src_y,
> 
> // Convert J420 to ABGR.
> LIBYUV_API
>-int J420ToABGR(const uint8* src_y,
>+int J420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -201,13 +192,13 @@ int J420ToABGR(const uint8* src_y,
> 
> // Convert H420 to ARGB.
> LIBYUV_API
>-int H420ToARGB(const uint8* src_y,
>+int H420ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -218,13 +209,13 @@ int H420ToARGB(const uint8* src_y,
> 
> // Convert H420 to ABGR.
> LIBYUV_API
>-int H420ToABGR(const uint8* src_y,
>+int H420ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -236,20 +227,20 @@ int H420ToABGR(const uint8* src_y,
> }
> 
> // Convert I422 to ARGB with matrix
>-static int I422ToARGBMatrix(const uint8* src_y,
>+static int I422ToARGBMatrix(const uint8_t* src_y,
>                             int src_stride_y,
>-                            const uint8* src_u,
>+                            const uint8_t* src_u,
>                             int src_stride_u,
>-                            const uint8* src_v,
>+                            const uint8_t* src_v,
>                             int src_stride_v,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_stride_argb,
>                             const struct YuvConstants* yuvconstants,
>                             int width,
>                             int height) {
>   int y;
>-  void (*I422ToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I422ToARGBRow_C;
>   if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>@@ -292,15 +283,6 @@ static int I422ToARGBMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
>-    I422ToARGBRow = I422ToARGBRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGBRow = I422ToARGBRow_Any_MSA;
>@@ -322,13 +304,13 @@ static int I422ToARGBMatrix(const uint8* src_y,
> 
> // Convert I422 to ARGB.
> LIBYUV_API
>-int I422ToARGB(const uint8* src_y,
>+int I422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -339,13 +321,13 @@ int I422ToARGB(const uint8* src_y,
> 
> // Convert I422 to ABGR.
> LIBYUV_API
>-int I422ToABGR(const uint8* src_y,
>+int I422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -358,13 +340,13 @@ int I422ToABGR(const uint8* src_y,
> 
> // Convert J422 to ARGB.
> LIBYUV_API
>-int J422ToARGB(const uint8* src_y,
>+int J422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -375,13 +357,13 @@ int J422ToARGB(const uint8* src_y,
> 
> // Convert J422 to ABGR.
> LIBYUV_API
>-int J422ToABGR(const uint8* src_y,
>+int J422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -394,13 +376,13 @@ int J422ToABGR(const uint8* src_y,
> 
> // Convert H422 to ARGB.
> LIBYUV_API
>-int H422ToARGB(const uint8* src_y,
>+int H422ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -411,13 +393,13 @@ int H422ToARGB(const uint8* src_y,
> 
> // Convert H422 to ABGR.
> LIBYUV_API
>-int H422ToABGR(const uint8* src_y,
>+int H422ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -428,21 +410,271 @@ int H422ToABGR(const uint8* src_y,
>                           width, height);
> }
> 
>+// Convert 10 bit YUV to ARGB with matrix
>+// TODO(fbarchard): Consider passing scale multiplier to I210ToARGB to
>+// multiply 10 bit yuv into high bits to allow any number of bits.
>+static int I010ToAR30Matrix(const uint16_t* src_y,
>+                            int src_stride_y,
>+                            const uint16_t* src_u,
>+                            int src_stride_u,
>+                            const uint16_t* src_v,
>+                            int src_stride_v,
>+                            uint8_t* dst_ar30,
>+                            int dst_stride_ar30,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width,
>+                            int height) {
>+  int y;
>+  void (*I210ToAR30Row)(const uint16_t* y_buf, const uint16_t* u_buf,
>+                        const uint16_t* v_buf, uint8_t* rgb_buf,
>+                        const struct YuvConstants* yuvconstants, int width) =
>+      I210ToAR30Row_C;
>+  if (!src_y || !src_u || !src_v || !dst_ar30 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_ar30 = dst_ar30 + (height - 1) * dst_stride_ar30;
>+    dst_stride_ar30 = -dst_stride_ar30;
>+  }
>+#if defined(HAS_I210TOAR30ROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    I210ToAR30Row = I210ToAR30Row_Any_SSSE3;
>+    if (IS_ALIGNED(width, 8)) {
>+      I210ToAR30Row = I210ToAR30Row_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_I210TOAR30ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I210ToAR30Row = I210ToAR30Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 16)) {
>+      I210ToAR30Row = I210ToAR30Row_AVX2;
>+    }
>+  }
>+#endif
>+  for (y = 0; y < height; ++y) {
>+    I210ToAR30Row(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
>+    dst_ar30 += dst_stride_ar30;
>+    src_y += src_stride_y;
>+    if (y & 1) {
>+      src_u += src_stride_u;
>+      src_v += src_stride_v;
>+    }
>+  }
>+  return 0;
>+}
>+
>+// Convert I010 to AR30.
>+LIBYUV_API
>+int I010ToAR30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  return I010ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_ar30, dst_stride_ar30,
>+                          &kYuvI601Constants, width, height);
>+}
>+
>+// Convert H010 to AR30.
>+LIBYUV_API
>+int H010ToAR30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  return I010ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_ar30, dst_stride_ar30,
>+                          &kYuvH709Constants, width, height);
>+}
>+
>+// Convert I010 to AB30.
>+LIBYUV_API
>+int I010ToAB30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height) {
>+  return I010ToAR30Matrix(src_y, src_stride_y, src_v, src_stride_v, src_u,
>+                          src_stride_u, dst_ab30, dst_stride_ab30,
>+                          &kYvuI601Constants, width, height);
>+}
>+
>+// Convert H010 to AB30.
>+LIBYUV_API
>+int H010ToAB30(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height) {
>+  return I010ToAR30Matrix(src_y, src_stride_y, src_v, src_stride_v, src_u,
>+                          src_stride_u, dst_ab30, dst_stride_ab30,
>+                          &kYvuH709Constants, width, height);
>+}
>+
>+// Convert 10 bit YUV to ARGB with matrix
>+static int I010ToARGBMatrix(const uint16_t* src_y,
>+                            int src_stride_y,
>+                            const uint16_t* src_u,
>+                            int src_stride_u,
>+                            const uint16_t* src_v,
>+                            int src_stride_v,
>+                            uint8_t* dst_argb,
>+                            int dst_stride_argb,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width,
>+                            int height) {
>+  int y;
>+  void (*I210ToARGBRow)(const uint16_t* y_buf, const uint16_t* u_buf,
>+                        const uint16_t* v_buf, uint8_t* rgb_buf,
>+                        const struct YuvConstants* yuvconstants, int width) =
>+      I210ToARGBRow_C;
>+  if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_argb = dst_argb + (height - 1) * dst_stride_argb;
>+    dst_stride_argb = -dst_stride_argb;
>+  }
>+#if defined(HAS_I210TOARGBROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    I210ToARGBRow = I210ToARGBRow_Any_SSSE3;
>+    if (IS_ALIGNED(width, 8)) {
>+      I210ToARGBRow = I210ToARGBRow_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_I210TOARGBROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I210ToARGBRow = I210ToARGBRow_Any_AVX2;
>+    if (IS_ALIGNED(width, 16)) {
>+      I210ToARGBRow = I210ToARGBRow_AVX2;
>+    }
>+  }
>+#endif
>+  for (y = 0; y < height; ++y) {
>+    I210ToARGBRow(src_y, src_u, src_v, dst_argb, yuvconstants, width);
>+    dst_argb += dst_stride_argb;
>+    src_y += src_stride_y;
>+    if (y & 1) {
>+      src_u += src_stride_u;
>+      src_v += src_stride_v;
>+    }
>+  }
>+  return 0;
>+}
>+
>+// Convert I010 to ARGB.
>+LIBYUV_API
>+int I010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height) {
>+  return I010ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_argb, dst_stride_argb,
>+                          &kYuvI601Constants, width, height);
>+}
>+
>+// Convert I010 to ABGR.
>+LIBYUV_API
>+int I010ToABGR(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height) {
>+  return I010ToARGBMatrix(src_y, src_stride_y, src_v,
>+                          src_stride_v,  // Swap U and V
>+                          src_u, src_stride_u, dst_abgr, dst_stride_abgr,
>+                          &kYvuI601Constants,  // Use Yvu matrix
>+                          width, height);
>+}
>+
>+// Convert H010 to ARGB.
>+LIBYUV_API
>+int H010ToARGB(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height) {
>+  return I010ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_argb, dst_stride_argb,
>+                          &kYuvH709Constants, width, height);
>+}
>+
>+// Convert H010 to ABGR.
>+LIBYUV_API
>+int H010ToABGR(const uint16_t* src_y,
>+               int src_stride_y,
>+               const uint16_t* src_u,
>+               int src_stride_u,
>+               const uint16_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height) {
>+  return I010ToARGBMatrix(src_y, src_stride_y, src_v,
>+                          src_stride_v,  // Swap U and V
>+                          src_u, src_stride_u, dst_abgr, dst_stride_abgr,
>+                          &kYvuH709Constants,  // Use Yvu matrix
>+                          width, height);
>+}
>+
> // Convert I444 to ARGB with matrix
>-static int I444ToARGBMatrix(const uint8* src_y,
>+static int I444ToARGBMatrix(const uint8_t* src_y,
>                             int src_stride_y,
>-                            const uint8* src_u,
>+                            const uint8_t* src_u,
>                             int src_stride_u,
>-                            const uint8* src_v,
>+                            const uint8_t* src_v,
>                             int src_stride_v,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_stride_argb,
>                             const struct YuvConstants* yuvconstants,
>                             int width,
>                             int height) {
>   int y;
>-  void (*I444ToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I444ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I444ToARGBRow_C;
>   if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>@@ -485,14 +717,6 @@ static int I444ToARGBMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I444TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    I444ToARGBRow = I444ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      I444ToARGBRow = I444ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_I444TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I444ToARGBRow = I444ToARGBRow_Any_MSA;
>@@ -514,13 +738,13 @@ static int I444ToARGBMatrix(const uint8* src_y,
> 
> // Convert I444 to ARGB.
> LIBYUV_API
>-int I444ToARGB(const uint8* src_y,
>+int I444ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -531,13 +755,13 @@ int I444ToARGB(const uint8* src_y,
> 
> // Convert I444 to ABGR.
> LIBYUV_API
>-int I444ToABGR(const uint8* src_y,
>+int I444ToABGR(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_abgr,
>+               uint8_t* dst_abgr,
>                int dst_stride_abgr,
>                int width,
>                int height) {
>@@ -550,13 +774,13 @@ int I444ToABGR(const uint8* src_y,
> 
> // Convert J444 to ARGB.
> LIBYUV_API
>-int J444ToARGB(const uint8* src_y,
>+int J444ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>@@ -566,28 +790,28 @@ int J444ToARGB(const uint8* src_y,
> }
> 
> // Convert I420 with Alpha to preattenuated ARGB.
>-static int I420AlphaToARGBMatrix(const uint8* src_y,
>+static int I420AlphaToARGBMatrix(const uint8_t* src_y,
>                                  int src_stride_y,
>-                                 const uint8* src_u,
>+                                 const uint8_t* src_u,
>                                  int src_stride_u,
>-                                 const uint8* src_v,
>+                                 const uint8_t* src_v,
>                                  int src_stride_v,
>-                                 const uint8* src_a,
>+                                 const uint8_t* src_a,
>                                  int src_stride_a,
>-                                 uint8* dst_argb,
>+                                 uint8_t* dst_argb,
>                                  int dst_stride_argb,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width,
>                                  int height,
>                                  int attenuate) {
>   int y;
>-  void (*I422AlphaToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                             const uint8* v_buf, const uint8* a_buf,
>-                             uint8* dst_argb,
>+  void (*I422AlphaToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                             const uint8_t* v_buf, const uint8_t* a_buf,
>+                             uint8_t* dst_argb,
>                              const struct YuvConstants* yuvconstants,
>                              int width) = I422AlphaToARGBRow_C;
>-  void (*ARGBAttenuateRow)(const uint8* src_argb, uint8* dst_argb, int width) =
>-      ARGBAttenuateRow_C;
>+  void (*ARGBAttenuateRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>+                           int width) = ARGBAttenuateRow_C;
>   if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -621,15 +845,6 @@ static int I420AlphaToARGBMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422ALPHATOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
>-    I422AlphaToARGBRow = I422AlphaToARGBRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422ALPHATOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422AlphaToARGBRow = I422AlphaToARGBRow_Any_MSA;
>@@ -690,15 +905,15 @@ static int I420AlphaToARGBMatrix(const uint8* src_y,
> 
> // Convert I420 with Alpha to ARGB.
> LIBYUV_API
>-int I420AlphaToARGB(const uint8* src_y,
>+int I420AlphaToARGB(const uint8_t* src_y,
>                     int src_stride_y,
>-                    const uint8* src_u,
>+                    const uint8_t* src_u,
>                     int src_stride_u,
>-                    const uint8* src_v,
>+                    const uint8_t* src_v,
>                     int src_stride_v,
>-                    const uint8* src_a,
>+                    const uint8_t* src_a,
>                     int src_stride_a,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height,
>@@ -711,15 +926,15 @@ int I420AlphaToARGB(const uint8* src_y,
> 
> // Convert I420 with Alpha to ABGR.
> LIBYUV_API
>-int I420AlphaToABGR(const uint8* src_y,
>+int I420AlphaToABGR(const uint8_t* src_y,
>                     int src_stride_y,
>-                    const uint8* src_u,
>+                    const uint8_t* src_u,
>                     int src_stride_u,
>-                    const uint8* src_v,
>+                    const uint8_t* src_v,
>                     int src_stride_v,
>-                    const uint8* src_a,
>+                    const uint8_t* src_a,
>                     int src_stride_a,
>-                    uint8* dst_abgr,
>+                    uint8_t* dst_abgr,
>                     int dst_stride_abgr,
>                     int width,
>                     int height,
>@@ -733,14 +948,14 @@ int I420AlphaToABGR(const uint8* src_y,
> 
> // Convert I400 to ARGB.
> LIBYUV_API
>-int I400ToARGB(const uint8* src_y,
>+int I400ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*I400ToARGBRow)(const uint8* y_buf, uint8* rgb_buf, int width) =
>+  void (*I400ToARGBRow)(const uint8_t* y_buf, uint8_t* rgb_buf, int width) =
>       I400ToARGBRow_C;
>   if (!src_y || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -800,14 +1015,14 @@ int I400ToARGB(const uint8* src_y,
> 
> // Convert J400 to ARGB.
> LIBYUV_API
>-int J400ToARGB(const uint8* src_y,
>+int J400ToARGB(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*J400ToARGBRow)(const uint8* src_y, uint8* dst_argb, int width) =
>+  void (*J400ToARGBRow)(const uint8_t* src_y, uint8_t* dst_argb, int width) =
>       J400ToARGBRow_C;
>   if (!src_y || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -865,87 +1080,87 @@ int J400ToARGB(const uint8* src_y,
> }
> 
> // Shuffle table for converting BGRA to ARGB.
>-static uvec8 kShuffleMaskBGRAToARGB = {3u,  2u,  1u, 0u, 7u,  6u,  5u,  4u,
>-                                       11u, 10u, 9u, 8u, 15u, 14u, 13u, 12u};
>+static const uvec8 kShuffleMaskBGRAToARGB = {
>+    3u, 2u, 1u, 0u, 7u, 6u, 5u, 4u, 11u, 10u, 9u, 8u, 15u, 14u, 13u, 12u};
> 
> // Shuffle table for converting ABGR to ARGB.
>-static uvec8 kShuffleMaskABGRToARGB = {2u,  1u, 0u, 3u,  6u,  5u,  4u,  7u,
>-                                       10u, 9u, 8u, 11u, 14u, 13u, 12u, 15u};
>+static const uvec8 kShuffleMaskABGRToARGB = {
>+    2u, 1u, 0u, 3u, 6u, 5u, 4u, 7u, 10u, 9u, 8u, 11u, 14u, 13u, 12u, 15u};
> 
> // Shuffle table for converting RGBA to ARGB.
>-static uvec8 kShuffleMaskRGBAToARGB = {1u, 2u,  3u,  0u, 5u,  6u,  7u,  4u,
>-                                       9u, 10u, 11u, 8u, 13u, 14u, 15u, 12u};
>+static const uvec8 kShuffleMaskRGBAToARGB = {
>+    1u, 2u, 3u, 0u, 5u, 6u, 7u, 4u, 9u, 10u, 11u, 8u, 13u, 14u, 15u, 12u};
> 
> // Convert BGRA to ARGB.
> LIBYUV_API
>-int BGRAToARGB(const uint8* src_bgra,
>+int BGRAToARGB(const uint8_t* src_bgra,
>                int src_stride_bgra,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   return ARGBShuffle(src_bgra, src_stride_bgra, dst_argb, dst_stride_argb,
>-                     (const uint8*)(&kShuffleMaskBGRAToARGB), width, height);
>+                     (const uint8_t*)(&kShuffleMaskBGRAToARGB), width, height);
> }
> 
> // Convert ARGB to BGRA (same as BGRAToARGB).
> LIBYUV_API
>-int ARGBToBGRA(const uint8* src_bgra,
>+int ARGBToBGRA(const uint8_t* src_bgra,
>                int src_stride_bgra,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   return ARGBShuffle(src_bgra, src_stride_bgra, dst_argb, dst_stride_argb,
>-                     (const uint8*)(&kShuffleMaskBGRAToARGB), width, height);
>+                     (const uint8_t*)(&kShuffleMaskBGRAToARGB), width, height);
> }
> 
> // Convert ABGR to ARGB.
> LIBYUV_API
>-int ABGRToARGB(const uint8* src_abgr,
>+int ABGRToARGB(const uint8_t* src_abgr,
>                int src_stride_abgr,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   return ARGBShuffle(src_abgr, src_stride_abgr, dst_argb, dst_stride_argb,
>-                     (const uint8*)(&kShuffleMaskABGRToARGB), width, height);
>+                     (const uint8_t*)(&kShuffleMaskABGRToARGB), width, height);
> }
> 
> // Convert ARGB to ABGR to (same as ABGRToARGB).
> LIBYUV_API
>-int ARGBToABGR(const uint8* src_abgr,
>+int ARGBToABGR(const uint8_t* src_abgr,
>                int src_stride_abgr,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   return ARGBShuffle(src_abgr, src_stride_abgr, dst_argb, dst_stride_argb,
>-                     (const uint8*)(&kShuffleMaskABGRToARGB), width, height);
>+                     (const uint8_t*)(&kShuffleMaskABGRToARGB), width, height);
> }
> 
> // Convert RGBA to ARGB.
> LIBYUV_API
>-int RGBAToARGB(const uint8* src_rgba,
>+int RGBAToARGB(const uint8_t* src_rgba,
>                int src_stride_rgba,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   return ARGBShuffle(src_rgba, src_stride_rgba, dst_argb, dst_stride_argb,
>-                     (const uint8*)(&kShuffleMaskRGBAToARGB), width, height);
>+                     (const uint8_t*)(&kShuffleMaskRGBAToARGB), width, height);
> }
> 
> // Convert RGB24 to ARGB.
> LIBYUV_API
>-int RGB24ToARGB(const uint8* src_rgb24,
>+int RGB24ToARGB(const uint8_t* src_rgb24,
>                 int src_stride_rgb24,
>-                uint8* dst_argb,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>                 int width,
>                 int height) {
>   int y;
>-  void (*RGB24ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>+  void (*RGB24ToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb, int width) =
>       RGB24ToARGBRow_C;
>   if (!src_rgb24 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -978,14 +1193,6 @@ int RGB24ToARGB(const uint8* src_rgb24,
>     }
>   }
> #endif
>-#if defined(HAS_RGB24TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RGB24ToARGBRow = RGB24ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      RGB24ToARGBRow = RGB24ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_RGB24TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     RGB24ToARGBRow = RGB24ToARGBRow_Any_MSA;
>@@ -1005,14 +1212,14 @@ int RGB24ToARGB(const uint8* src_rgb24,
> 
> // Convert RAW to ARGB.
> LIBYUV_API
>-int RAWToARGB(const uint8* src_raw,
>+int RAWToARGB(const uint8_t* src_raw,
>               int src_stride_raw,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height) {
>   int y;
>-  void (*RAWToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int width) =
>+  void (*RAWToARGBRow)(const uint8_t* src_rgb, uint8_t* dst_argb, int width) =
>       RAWToARGBRow_C;
>   if (!src_raw || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1045,14 +1252,6 @@ int RAWToARGB(const uint8* src_raw,
>     }
>   }
> #endif
>-#if defined(HAS_RAWTOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RAWToARGBRow = RAWToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      RAWToARGBRow = RAWToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_RAWTOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     RAWToARGBRow = RAWToARGBRow_Any_MSA;
>@@ -1072,15 +1271,15 @@ int RAWToARGB(const uint8* src_raw,
> 
> // Convert RGB565 to ARGB.
> LIBYUV_API
>-int RGB565ToARGB(const uint8* src_rgb565,
>+int RGB565ToARGB(const uint8_t* src_rgb565,
>                  int src_stride_rgb565,
>-                 uint8* dst_argb,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height) {
>   int y;
>-  void (*RGB565ToARGBRow)(const uint8* src_rgb565, uint8* dst_argb, int width) =
>-      RGB565ToARGBRow_C;
>+  void (*RGB565ToARGBRow)(const uint8_t* src_rgb565, uint8_t* dst_argb,
>+                          int width) = RGB565ToARGBRow_C;
>   if (!src_rgb565 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1120,14 +1319,6 @@ int RGB565ToARGB(const uint8* src_rgb565,
>     }
>   }
> #endif
>-#if defined(HAS_RGB565TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    RGB565ToARGBRow = RGB565ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      RGB565ToARGBRow = RGB565ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_RGB565TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     RGB565ToARGBRow = RGB565ToARGBRow_Any_MSA;
>@@ -1147,14 +1338,14 @@ int RGB565ToARGB(const uint8* src_rgb565,
> 
> // Convert ARGB1555 to ARGB.
> LIBYUV_API
>-int ARGB1555ToARGB(const uint8* src_argb1555,
>+int ARGB1555ToARGB(const uint8_t* src_argb1555,
>                    int src_stride_argb1555,
>-                   uint8* dst_argb,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGB1555ToARGBRow)(const uint8* src_argb1555, uint8* dst_argb,
>+  void (*ARGB1555ToARGBRow)(const uint8_t* src_argb1555, uint8_t* dst_argb,
>                             int width) = ARGB1555ToARGBRow_C;
>   if (!src_argb1555 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1195,14 +1386,6 @@ int ARGB1555ToARGB(const uint8* src_argb1555,
>     }
>   }
> #endif
>-#if defined(HAS_ARGB1555TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 4)) {
>-      ARGB1555ToARGBRow = ARGB1555ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGB1555TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_MSA;
>@@ -1222,14 +1405,14 @@ int ARGB1555ToARGB(const uint8* src_argb1555,
> 
> // Convert ARGB4444 to ARGB.
> LIBYUV_API
>-int ARGB4444ToARGB(const uint8* src_argb4444,
>+int ARGB4444ToARGB(const uint8_t* src_argb4444,
>                    int src_stride_argb4444,
>-                   uint8* dst_argb,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGB4444ToARGBRow)(const uint8* src_argb4444, uint8* dst_argb,
>+  void (*ARGB4444ToARGBRow)(const uint8_t* src_argb4444, uint8_t* dst_argb,
>                             int width) = ARGB4444ToARGBRow_C;
>   if (!src_argb4444 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1270,14 +1453,6 @@ int ARGB4444ToARGB(const uint8* src_argb4444,
>     }
>   }
> #endif
>-#if defined(HAS_ARGB4444TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 4)) {
>-      ARGB4444ToARGBRow = ARGB4444ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGB4444TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_MSA;
>@@ -1295,20 +1470,116 @@ int ARGB4444ToARGB(const uint8* src_argb4444,
>   return 0;
> }
> 
>-// Convert NV12 to ARGB.
>+// Convert AR30 to ARGB.
> LIBYUV_API
>-int NV12ToARGB(const uint8* src_y,
>-               int src_stride_y,
>-               const uint8* src_uv,
>-               int src_stride_uv,
>-               uint8* dst_argb,
>+int AR30ToARGB(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*NV12ToARGBRow)(const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
>-                        const struct YuvConstants* yuvconstants, int width) =
>-      NV12ToARGBRow_C;
>+  if (!src_ar30 || !dst_argb || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    src_ar30 = src_ar30 + (height - 1) * src_stride_ar30;
>+    src_stride_ar30 = -src_stride_ar30;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_ar30 == width * 4 && dst_stride_argb == width * 4) {
>+    width *= height;
>+    height = 1;
>+    src_stride_ar30 = dst_stride_argb = 0;
>+  }
>+  for (y = 0; y < height; ++y) {
>+    AR30ToARGBRow_C(src_ar30, dst_argb, width);
>+    src_ar30 += src_stride_ar30;
>+    dst_argb += dst_stride_argb;
>+  }
>+  return 0;
>+}
>+
>+// Convert AR30 to ABGR.
>+LIBYUV_API
>+int AR30ToABGR(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height) {
>+  int y;
>+  if (!src_ar30 || !dst_abgr || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    src_ar30 = src_ar30 + (height - 1) * src_stride_ar30;
>+    src_stride_ar30 = -src_stride_ar30;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_ar30 == width * 4 && dst_stride_abgr == width * 4) {
>+    width *= height;
>+    height = 1;
>+    src_stride_ar30 = dst_stride_abgr = 0;
>+  }
>+  for (y = 0; y < height; ++y) {
>+    AR30ToABGRRow_C(src_ar30, dst_abgr, width);
>+    src_ar30 += src_stride_ar30;
>+    dst_abgr += dst_stride_abgr;
>+  }
>+  return 0;
>+}
>+
>+// Convert AR30 to AB30.
>+LIBYUV_API
>+int AR30ToAB30(const uint8_t* src_ar30,
>+               int src_stride_ar30,
>+               uint8_t* dst_ab30,
>+               int dst_stride_ab30,
>+               int width,
>+               int height) {
>+  int y;
>+  if (!src_ar30 || !dst_ab30 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    src_ar30 = src_ar30 + (height - 1) * src_stride_ar30;
>+    src_stride_ar30 = -src_stride_ar30;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_ar30 == width * 4 && dst_stride_ab30 == width * 4) {
>+    width *= height;
>+    height = 1;
>+    src_stride_ar30 = dst_stride_ab30 = 0;
>+  }
>+  for (y = 0; y < height; ++y) {
>+    AR30ToAB30Row_C(src_ar30, dst_ab30, width);
>+    src_ar30 += src_stride_ar30;
>+    dst_ab30 += dst_stride_ab30;
>+  }
>+  return 0;
>+}
>+
>+// Convert NV12 to ARGB with matrix
>+static int NV12ToARGBMatrix(const uint8_t* src_y,
>+                            int src_stride_y,
>+                            const uint8_t* src_uv,
>+                            int src_stride_uv,
>+                            uint8_t* dst_argb,
>+                            int dst_stride_argb,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width,
>+                            int height) {
>+  int y;
>+  void (*NV12ToARGBRow)(
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>+      const struct YuvConstants* yuvconstants, int width) = NV12ToARGBRow_C;
>   if (!src_y || !src_uv || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1342,14 +1613,6 @@ int NV12ToARGB(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_NV12TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    NV12ToARGBRow = NV12ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      NV12ToARGBRow = NV12ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_NV12TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     NV12ToARGBRow = NV12ToARGBRow_Any_MSA;
>@@ -1360,7 +1623,7 @@ int NV12ToARGB(const uint8* src_y,
> #endif
> 
>   for (y = 0; y < height; ++y) {
>-    NV12ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
>+    NV12ToARGBRow(src_y, src_uv, dst_argb, yuvconstants, width);
>     dst_argb += dst_stride_argb;
>     src_y += src_stride_y;
>     if (y & 1) {
>@@ -1370,21 +1633,21 @@ int NV12ToARGB(const uint8* src_y,
>   return 0;
> }
> 
>-// Convert NV21 to ARGB.
>-LIBYUV_API
>-int NV21ToARGB(const uint8* src_y,
>-               int src_stride_y,
>-               const uint8* src_uv,
>-               int src_stride_uv,
>-               uint8* dst_argb,
>-               int dst_stride_argb,
>-               int width,
>-               int height) {
>+// Convert NV21 to ARGB with matrix
>+static int NV21ToARGBMatrix(const uint8_t* src_y,
>+                            int src_stride_y,
>+                            const uint8_t* src_vu,
>+                            int src_stride_vu,
>+                            uint8_t* dst_argb,
>+                            int dst_stride_argb,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width,
>+                            int height) {
>   int y;
>-  void (*NV21ToARGBRow)(const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
>-                        const struct YuvConstants* yuvconstants, int width) =
>-      NV21ToARGBRow_C;
>-  if (!src_y || !src_uv || !dst_argb || width <= 0 || height == 0) {
>+  void (*NV21ToARGBRow)(
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>+      const struct YuvConstants* yuvconstants, int width) = NV21ToARGBRow_C;
>+  if (!src_y || !src_vu || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>   // Negative height means invert the image.
>@@ -1427,9 +1690,110 @@ int NV21ToARGB(const uint8* src_y,
> #endif
> 
>   for (y = 0; y < height; ++y) {
>-    NV21ToARGBRow(src_y, src_uv, dst_argb, &kYuvI601Constants, width);
>+    NV21ToARGBRow(src_y, src_vu, dst_argb, yuvconstants, width);
>     dst_argb += dst_stride_argb;
>     src_y += src_stride_y;
>+    if (y & 1) {
>+      src_vu += src_stride_vu;
>+    }
>+  }
>+  return 0;
>+}
>+
>+// Convert NV12 to ARGB.
>+LIBYUV_API
>+int NV12ToARGB(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_uv,
>+               int src_stride_uv,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height) {
>+  return NV12ToARGBMatrix(src_y, src_stride_y, src_uv, src_stride_uv, dst_argb,
>+                          dst_stride_argb, &kYuvI601Constants, width, height);
>+}
>+
>+// Convert NV21 to ARGB.
>+LIBYUV_API
>+int NV21ToARGB(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_vu,
>+               int src_stride_vu,
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int width,
>+               int height) {
>+  return NV21ToARGBMatrix(src_y, src_stride_y, src_vu, src_stride_vu, dst_argb,
>+                          dst_stride_argb, &kYuvI601Constants, width, height);
>+}
>+
>+// Convert NV12 to ABGR.
>+// To output ABGR instead of ARGB swap the UV and use a mirrrored yuc matrix.
>+// To swap the UV use NV12 instead of NV21.LIBYUV_API
>+int NV12ToABGR(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_uv,
>+               int src_stride_uv,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height) {
>+  return NV21ToARGBMatrix(src_y, src_stride_y, src_uv, src_stride_uv, dst_abgr,
>+                          dst_stride_abgr, &kYvuI601Constants, width, height);
>+}
>+
>+// Convert NV21 to ABGR.
>+LIBYUV_API
>+int NV21ToABGR(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_vu,
>+               int src_stride_vu,
>+               uint8_t* dst_abgr,
>+               int dst_stride_abgr,
>+               int width,
>+               int height) {
>+  return NV12ToARGBMatrix(src_y, src_stride_y, src_vu, src_stride_vu, dst_abgr,
>+                          dst_stride_abgr, &kYvuI601Constants, width, height);
>+}
>+
>+// TODO(fbarchard): Consider SSSE3 2 step conversion.
>+// Convert NV12 to RGB24 with matrix
>+static int NV12ToRGB24Matrix(const uint8_t* src_y,
>+                             int src_stride_y,
>+                             const uint8_t* src_uv,
>+                             int src_stride_uv,
>+                             uint8_t* dst_rgb24,
>+                             int dst_stride_rgb24,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width,
>+                             int height) {
>+  int y;
>+  void (*NV12ToRGB24Row)(
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>+      const struct YuvConstants* yuvconstants, int width) = NV12ToRGB24Row_C;
>+  if (!src_y || !src_uv || !dst_rgb24 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_rgb24 = dst_rgb24 + (height - 1) * dst_stride_rgb24;
>+    dst_stride_rgb24 = -dst_stride_rgb24;
>+  }
>+#if defined(HAS_NV12TORGB24ROW_NEON)
>+  if (TestCpuFlag(kCpuHasNEON)) {
>+    NV12ToRGB24Row = NV12ToRGB24Row_Any_NEON;
>+    if (IS_ALIGNED(width, 8)) {
>+      NV12ToRGB24Row = NV12ToRGB24Row_NEON;
>+    }
>+  }
>+#endif
>+
>+  for (y = 0; y < height; ++y) {
>+    NV12ToRGB24Row(src_y, src_uv, dst_rgb24, yuvconstants, width);
>+    dst_rgb24 += dst_stride_rgb24;
>+    src_y += src_stride_y;
>     if (y & 1) {
>       src_uv += src_stride_uv;
>     }
>@@ -1437,18 +1801,92 @@ int NV21ToARGB(const uint8* src_y,
>   return 0;
> }
> 
>+// Convert NV21 to RGB24 with matrix
>+static int NV21ToRGB24Matrix(const uint8_t* src_y,
>+                             int src_stride_y,
>+                             const uint8_t* src_vu,
>+                             int src_stride_vu,
>+                             uint8_t* dst_rgb24,
>+                             int dst_stride_rgb24,
>+                             const struct YuvConstants* yuvconstants,
>+                             int width,
>+                             int height) {
>+  int y;
>+  void (*NV21ToRGB24Row)(
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>+      const struct YuvConstants* yuvconstants, int width) = NV21ToRGB24Row_C;
>+  if (!src_y || !src_vu || !dst_rgb24 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_rgb24 = dst_rgb24 + (height - 1) * dst_stride_rgb24;
>+    dst_stride_rgb24 = -dst_stride_rgb24;
>+  }
>+#if defined(HAS_NV21TORGB24ROW_NEON)
>+  if (TestCpuFlag(kCpuHasNEON)) {
>+    NV21ToRGB24Row = NV21ToRGB24Row_Any_NEON;
>+    if (IS_ALIGNED(width, 8)) {
>+      NV21ToRGB24Row = NV21ToRGB24Row_NEON;
>+    }
>+  }
>+#endif
>+
>+  for (y = 0; y < height; ++y) {
>+    NV21ToRGB24Row(src_y, src_vu, dst_rgb24, yuvconstants, width);
>+    dst_rgb24 += dst_stride_rgb24;
>+    src_y += src_stride_y;
>+    if (y & 1) {
>+      src_vu += src_stride_vu;
>+    }
>+  }
>+  return 0;
>+}
>+
>+// TODO(fbarchard): \(fbarchard): NV12ToRAW can be implemented by mirrored
>+// matrix. Convert NV12 to RGB24.
>+LIBYUV_API
>+int NV12ToRGB24(const uint8_t* src_y,
>+                int src_stride_y,
>+                const uint8_t* src_uv,
>+                int src_stride_uv,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>+                int width,
>+                int height) {
>+  return NV12ToRGB24Matrix(src_y, src_stride_y, src_uv, src_stride_uv,
>+                           dst_rgb24, dst_stride_rgb24, &kYuvI601Constants,
>+                           width, height);
>+}
>+
>+// Convert NV21 to RGB24.
>+LIBYUV_API
>+int NV21ToRGB24(const uint8_t* src_y,
>+                int src_stride_y,
>+                const uint8_t* src_vu,
>+                int src_stride_vu,
>+                uint8_t* dst_rgb24,
>+                int dst_stride_rgb24,
>+                int width,
>+                int height) {
>+  return NV21ToRGB24Matrix(src_y, src_stride_y, src_vu, src_stride_vu,
>+                           dst_rgb24, dst_stride_rgb24, &kYuvI601Constants,
>+                           width, height);
>+}
>+
> // Convert M420 to ARGB.
> LIBYUV_API
>-int M420ToARGB(const uint8* src_m420,
>+int M420ToARGB(const uint8_t* src_m420,
>                int src_stride_m420,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*NV12ToARGBRow)(const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
>-                        const struct YuvConstants* yuvconstants, int width) =
>-      NV12ToARGBRow_C;
>+  void (*NV12ToARGBRow)(
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>+      const struct YuvConstants* yuvconstants, int width) = NV12ToARGBRow_C;
>   if (!src_m420 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1482,14 +1920,6 @@ int M420ToARGB(const uint8* src_m420,
>     }
>   }
> #endif
>-#if defined(HAS_NV12TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    NV12ToARGBRow = NV12ToARGBRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      NV12ToARGBRow = NV12ToARGBRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_NV12TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     NV12ToARGBRow = NV12ToARGBRow_Any_MSA;
>@@ -1516,14 +1946,14 @@ int M420ToARGB(const uint8* src_m420,
> 
> // Convert YUY2 to ARGB.
> LIBYUV_API
>-int YUY2ToARGB(const uint8* src_yuy2,
>+int YUY2ToARGB(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*YUY2ToARGBRow)(const uint8* src_yuy2, uint8* dst_argb,
>+  void (*YUY2ToARGBRow)(const uint8_t* src_yuy2, uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants, int width) =
>       YUY2ToARGBRow_C;
>   if (!src_yuy2 || !dst_argb || width <= 0 || height == 0) {
>@@ -1583,14 +2013,14 @@ int YUY2ToARGB(const uint8* src_yuy2,
> 
> // Convert UYVY to ARGB.
> LIBYUV_API
>-int UYVYToARGB(const uint8* src_uyvy,
>+int UYVYToARGB(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*UYVYToARGBRow)(const uint8* src_uyvy, uint8* dst_argb,
>+  void (*UYVYToARGBRow)(const uint8_t* src_uyvy, uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants, int width) =
>       UYVYToARGBRow_C;
>   if (!src_uyvy || !dst_argb || width <= 0 || height == 0) {
>@@ -1647,6 +2077,121 @@ int UYVYToARGB(const uint8* src_uyvy,
>   }
>   return 0;
> }
>+static void WeavePixels(const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        int src_pixel_stride_uv,
>+                        uint8_t* dst_uv,
>+                        int width) {
>+  int i;
>+  for (i = 0; i < width; ++i) {
>+    dst_uv[0] = *src_u;
>+    dst_uv[1] = *src_v;
>+    dst_uv += 2;
>+    src_u += src_pixel_stride_uv;
>+    src_v += src_pixel_stride_uv;
>+  }
>+}
>+
>+// Convert Android420 to ARGB.
>+LIBYUV_API
>+int Android420ToARGBMatrix(const uint8_t* src_y,
>+                           int src_stride_y,
>+                           const uint8_t* src_u,
>+                           int src_stride_u,
>+                           const uint8_t* src_v,
>+                           int src_stride_v,
>+                           int src_pixel_stride_uv,
>+                           uint8_t* dst_argb,
>+                           int dst_stride_argb,
>+                           const struct YuvConstants* yuvconstants,
>+                           int width,
>+                           int height) {
>+  int y;
>+  uint8_t* dst_uv;
>+  const ptrdiff_t vu_off = src_v - src_u;
>+  int halfwidth = (width + 1) >> 1;
>+  int halfheight = (height + 1) >> 1;
>+  if (!src_y || !src_u || !src_v || !dst_argb || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    halfheight = (height + 1) >> 1;
>+    dst_argb = dst_argb + (height - 1) * dst_stride_argb;
>+    dst_stride_argb = -dst_stride_argb;
>+  }
>+
>+  // I420
>+  if (src_pixel_stride_uv == 1) {
>+    return I420ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                            src_stride_v, dst_argb, dst_stride_argb,
>+                            yuvconstants, width, height);
>+    // NV21
>+  }
>+  if (src_pixel_stride_uv == 2 && vu_off == -1 &&
>+      src_stride_u == src_stride_v) {
>+    return NV21ToARGBMatrix(src_y, src_stride_y, src_v, src_stride_v, dst_argb,
>+                            dst_stride_argb, yuvconstants, width, height);
>+    // NV12
>+  }
>+  if (src_pixel_stride_uv == 2 && vu_off == 1 && src_stride_u == src_stride_v) {
>+    return NV12ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, dst_argb,
>+                            dst_stride_argb, yuvconstants, width, height);
>+  }
>+
>+  // General case fallback creates NV12
>+  align_buffer_64(plane_uv, halfwidth * 2 * halfheight);
>+  dst_uv = plane_uv;
>+  for (y = 0; y < halfheight; ++y) {
>+    WeavePixels(src_u, src_v, src_pixel_stride_uv, dst_uv, halfwidth);
>+    src_u += src_stride_u;
>+    src_v += src_stride_v;
>+    dst_uv += halfwidth * 2;
>+  }
>+  NV12ToARGBMatrix(src_y, src_stride_y, plane_uv, halfwidth * 2, dst_argb,
>+                   dst_stride_argb, yuvconstants, width, height);
>+  free_aligned_buffer_64(plane_uv);
>+  return 0;
>+}
>+
>+// Convert Android420 to ARGB.
>+LIBYUV_API
>+int Android420ToARGB(const uint8_t* src_y,
>+                     int src_stride_y,
>+                     const uint8_t* src_u,
>+                     int src_stride_u,
>+                     const uint8_t* src_v,
>+                     int src_stride_v,
>+                     int src_pixel_stride_uv,
>+                     uint8_t* dst_argb,
>+                     int dst_stride_argb,
>+                     int width,
>+                     int height) {
>+  return Android420ToARGBMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                                src_stride_v, src_pixel_stride_uv, dst_argb,
>+                                dst_stride_argb, &kYuvI601Constants, width,
>+                                height);
>+}
>+
>+// Convert Android420 to ABGR.
>+LIBYUV_API
>+int Android420ToABGR(const uint8_t* src_y,
>+                     int src_stride_y,
>+                     const uint8_t* src_u,
>+                     int src_stride_u,
>+                     const uint8_t* src_v,
>+                     int src_stride_v,
>+                     int src_pixel_stride_uv,
>+                     uint8_t* dst_abgr,
>+                     int dst_stride_abgr,
>+                     int width,
>+                     int height) {
>+  return Android420ToARGBMatrix(src_y, src_stride_y, src_v, src_stride_v, src_u,
>+                                src_stride_u, src_pixel_stride_uv, dst_abgr,
>+                                dst_stride_abgr, &kYvuI601Constants, width,
>+                                height);
>+}
> 
> #ifdef __cplusplus
> }  // extern "C"
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from.cc
>index 0f52f9ef9e0e920abb2fe50c97f25dacc028b360..b5587ced625702f13d0bb3b353fa1ecedf61ffe6 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from.cc
>@@ -30,17 +30,17 @@ static __inline int Abs(int v) {
> }
> 
> // I420 To any I4xx YUV format with mirroring.
>-static int I420ToI4xx(const uint8* src_y,
>+static int I420ToI4xx(const uint8_t* src_y,
>                       int src_stride_y,
>-                      const uint8* src_u,
>+                      const uint8_t* src_u,
>                       int src_stride_u,
>-                      const uint8* src_v,
>+                      const uint8_t* src_v,
>                       int src_stride_v,
>-                      uint8* dst_y,
>+                      uint8_t* dst_y,
>                       int dst_stride_y,
>-                      uint8* dst_u,
>+                      uint8_t* dst_u,
>                       int dst_stride_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_v,
>                       int dst_stride_v,
>                       int src_y_width,
>                       int src_y_height,
>@@ -65,20 +65,64 @@ static int I420ToI4xx(const uint8* src_y,
>   return 0;
> }
> 
>+// Convert 8 bit YUV to 10 bit.
>+LIBYUV_API
>+int I420ToI010(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint16_t* dst_y,
>+               int dst_stride_y,
>+               uint16_t* dst_u,
>+               int dst_stride_u,
>+               uint16_t* dst_v,
>+               int dst_stride_v,
>+               int width,
>+               int height) {
>+  int halfwidth = (width + 1) >> 1;
>+  int halfheight = (height + 1) >> 1;
>+  if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    halfheight = (height + 1) >> 1;
>+    src_y = src_y + (height - 1) * src_stride_y;
>+    src_u = src_u + (halfheight - 1) * src_stride_u;
>+    src_v = src_v + (halfheight - 1) * src_stride_v;
>+    src_stride_y = -src_stride_y;
>+    src_stride_u = -src_stride_u;
>+    src_stride_v = -src_stride_v;
>+  }
>+
>+  // Convert Y plane.
>+  Convert8To16Plane(src_y, src_stride_y, dst_y, dst_stride_y, 1024, width,
>+                    height);
>+  // Convert UV planes.
>+  Convert8To16Plane(src_u, src_stride_u, dst_u, dst_stride_u, 1024, halfwidth,
>+                    halfheight);
>+  Convert8To16Plane(src_v, src_stride_v, dst_v, dst_stride_v, 1024, halfwidth,
>+                    halfheight);
>+  return 0;
>+}
>+
> // 420 chroma is 1/2 width, 1/2 height
> // 422 chroma is 1/2 width, 1x height
> LIBYUV_API
>-int I420ToI422(const uint8* src_y,
>+int I420ToI422(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -93,17 +137,17 @@ int I420ToI422(const uint8* src_y,
> // 420 chroma is 1/2 width, 1/2 height
> // 444 chroma is 1x width, 1x height
> LIBYUV_API
>-int I420ToI444(const uint8* src_y,
>+int I420ToI444(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -117,9 +161,9 @@ int I420ToI444(const uint8* src_y,
> 
> // Copy to I400. Source can be I420,422,444,400,NV12,NV21
> LIBYUV_API
>-int I400Copy(const uint8* src_y,
>+int I400Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>              int width,
>              int height) {
>@@ -137,19 +181,19 @@ int I400Copy(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I422ToYUY2(const uint8* src_y,
>+int I422ToYUY2(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_yuy2,
>+               uint8_t* dst_yuy2,
>                int dst_stride_yuy2,
>                int width,
>                int height) {
>   int y;
>-  void (*I422ToYUY2Row)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_yuy2, int width) =
>+  void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
>       I422ToYUY2Row_C;
>   if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
>     return -1;
>@@ -175,6 +219,14 @@ int I422ToYUY2(const uint8* src_y,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOYUY2ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToYUY2Row = I422ToYUY2Row_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOYUY2ROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
>@@ -195,19 +247,19 @@ int I422ToYUY2(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I420ToYUY2(const uint8* src_y,
>+int I420ToYUY2(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_yuy2,
>+               uint8_t* dst_yuy2,
>                int dst_stride_yuy2,
>                int width,
>                int height) {
>   int y;
>-  void (*I422ToYUY2Row)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_yuy2, int width) =
>+  void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
>       I422ToYUY2Row_C;
>   if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
>     return -1;
>@@ -226,6 +278,14 @@ int I420ToYUY2(const uint8* src_y,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOYUY2ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToYUY2Row = I422ToYUY2Row_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOYUY2ROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
>@@ -259,19 +319,19 @@ int I420ToYUY2(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I422ToUYVY(const uint8* src_y,
>+int I422ToUYVY(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_uyvy,
>+               uint8_t* dst_uyvy,
>                int dst_stride_uyvy,
>                int width,
>                int height) {
>   int y;
>-  void (*I422ToUYVYRow)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_uyvy, int width) =
>+  void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
>       I422ToUYVYRow_C;
>   if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
>     return -1;
>@@ -297,6 +357,14 @@ int I422ToUYVY(const uint8* src_y,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOUYVYROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToUYVYRow = I422ToUYVYRow_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOUYVYROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
>@@ -325,19 +393,19 @@ int I422ToUYVY(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I420ToUYVY(const uint8* src_y,
>+int I420ToUYVY(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_uyvy,
>+               uint8_t* dst_uyvy,
>                int dst_stride_uyvy,
>                int width,
>                int height) {
>   int y;
>-  void (*I422ToUYVYRow)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_uyvy, int width) =
>+  void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
>       I422ToUYVYRow_C;
>   if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
>     return -1;
>@@ -356,6 +424,14 @@ int I420ToUYVY(const uint8* src_y,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOUYVYROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToUYVYRow = I422ToUYVYRow_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOUYVYROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
>@@ -390,15 +466,15 @@ int I420ToUYVY(const uint8* src_y,
> 
> // TODO(fbarchard): test negative height for invert.
> LIBYUV_API
>-int I420ToNV12(const uint8* src_y,
>+int I420ToNV12(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height) {
>@@ -417,15 +493,15 @@ int I420ToNV12(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I420ToNV21(const uint8* src_y,
>+int I420ToNV21(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_vu,
>+               uint8_t* dst_vu,
>                int dst_stride_vu,
>                int width,
>                int height) {
>@@ -435,20 +511,20 @@ int I420ToNV21(const uint8* src_y,
> }
> 
> // Convert I422 to RGBA with matrix
>-static int I420ToRGBAMatrix(const uint8* src_y,
>+static int I420ToRGBAMatrix(const uint8_t* src_y,
>                             int src_stride_y,
>-                            const uint8* src_u,
>+                            const uint8_t* src_u,
>                             int src_stride_u,
>-                            const uint8* src_v,
>+                            const uint8_t* src_v,
>                             int src_stride_v,
>-                            uint8* dst_rgba,
>+                            uint8_t* dst_rgba,
>                             int dst_stride_rgba,
>                             const struct YuvConstants* yuvconstants,
>                             int width,
>                             int height) {
>   int y;
>-  void (*I422ToRGBARow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToRGBARow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I422ToRGBARow_C;
>   if (!src_y || !src_u || !src_v || !dst_rgba || width <= 0 || height == 0) {
>@@ -484,15 +560,6 @@ static int I420ToRGBAMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TORGBAROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_rgba, 4) && IS_ALIGNED(dst_stride_rgba, 4)) {
>-    I422ToRGBARow = I422ToRGBARow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TORGBAROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToRGBARow = I422ToRGBARow_Any_MSA;
>@@ -516,13 +583,13 @@ static int I420ToRGBAMatrix(const uint8* src_y,
> 
> // Convert I420 to RGBA.
> LIBYUV_API
>-int I420ToRGBA(const uint8* src_y,
>+int I420ToRGBA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height) {
>@@ -533,13 +600,13 @@ int I420ToRGBA(const uint8* src_y,
> 
> // Convert I420 to BGRA.
> LIBYUV_API
>-int I420ToBGRA(const uint8* src_y,
>+int I420ToBGRA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_bgra,
>+               uint8_t* dst_bgra,
>                int dst_stride_bgra,
>                int width,
>                int height) {
>@@ -551,20 +618,20 @@ int I420ToBGRA(const uint8* src_y,
> }
> 
> // Convert I420 to RGB24 with matrix
>-static int I420ToRGB24Matrix(const uint8* src_y,
>+static int I420ToRGB24Matrix(const uint8_t* src_y,
>                              int src_stride_y,
>-                             const uint8* src_u,
>+                             const uint8_t* src_u,
>                              int src_stride_u,
>-                             const uint8* src_v,
>+                             const uint8_t* src_v,
>                              int src_stride_v,
>-                             uint8* dst_rgb24,
>+                             uint8_t* dst_rgb24,
>                              int dst_stride_rgb24,
>                              const struct YuvConstants* yuvconstants,
>                              int width,
>                              int height) {
>   int y;
>-  void (*I422ToRGB24Row)(const uint8* y_buf, const uint8* u_buf,
>-                         const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToRGB24Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                         const uint8_t* v_buf, uint8_t* rgb_buf,
>                          const struct YuvConstants* yuvconstants, int width) =
>       I422ToRGB24Row_C;
>   if (!src_y || !src_u || !src_v || !dst_rgb24 || width <= 0 || height == 0) {
>@@ -623,13 +690,13 @@ static int I420ToRGB24Matrix(const uint8* src_y,
> 
> // Convert I420 to RGB24.
> LIBYUV_API
>-int I420ToRGB24(const uint8* src_y,
>+int I420ToRGB24(const uint8_t* src_y,
>                 int src_stride_y,
>-                const uint8* src_u,
>+                const uint8_t* src_u,
>                 int src_stride_u,
>-                const uint8* src_v,
>+                const uint8_t* src_v,
>                 int src_stride_v,
>-                uint8* dst_rgb24,
>+                uint8_t* dst_rgb24,
>                 int dst_stride_rgb24,
>                 int width,
>                 int height) {
>@@ -640,13 +707,13 @@ int I420ToRGB24(const uint8* src_y,
> 
> // Convert I420 to RAW.
> LIBYUV_API
>-int I420ToRAW(const uint8* src_y,
>+int I420ToRAW(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>-              uint8* dst_raw,
>+              uint8_t* dst_raw,
>               int dst_stride_raw,
>               int width,
>               int height) {
>@@ -659,13 +726,13 @@ int I420ToRAW(const uint8* src_y,
> 
> // Convert H420 to RGB24.
> LIBYUV_API
>-int H420ToRGB24(const uint8* src_y,
>+int H420ToRGB24(const uint8_t* src_y,
>                 int src_stride_y,
>-                const uint8* src_u,
>+                const uint8_t* src_u,
>                 int src_stride_u,
>-                const uint8* src_v,
>+                const uint8_t* src_v,
>                 int src_stride_v,
>-                uint8* dst_rgb24,
>+                uint8_t* dst_rgb24,
>                 int dst_stride_rgb24,
>                 int width,
>                 int height) {
>@@ -676,13 +743,13 @@ int H420ToRGB24(const uint8* src_y,
> 
> // Convert H420 to RAW.
> LIBYUV_API
>-int H420ToRAW(const uint8* src_y,
>+int H420ToRAW(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>-              uint8* dst_raw,
>+              uint8_t* dst_raw,
>               int dst_stride_raw,
>               int width,
>               int height) {
>@@ -695,19 +762,19 @@ int H420ToRAW(const uint8* src_y,
> 
> // Convert I420 to ARGB1555.
> LIBYUV_API
>-int I420ToARGB1555(const uint8* src_y,
>+int I420ToARGB1555(const uint8_t* src_y,
>                    int src_stride_y,
>-                   const uint8* src_u,
>+                   const uint8_t* src_u,
>                    int src_stride_u,
>-                   const uint8* src_v,
>+                   const uint8_t* src_v,
>                    int src_stride_v,
>-                   uint8* dst_argb1555,
>+                   uint8_t* dst_argb1555,
>                    int dst_stride_argb1555,
>                    int width,
>                    int height) {
>   int y;
>-  void (*I422ToARGB1555Row)(const uint8* y_buf, const uint8* u_buf,
>-                            const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToARGB1555Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                            const uint8_t* v_buf, uint8_t* rgb_buf,
>                             const struct YuvConstants* yuvconstants,
>                             int width) = I422ToARGB1555Row_C;
>   if (!src_y || !src_u || !src_v || !dst_argb1555 || width <= 0 ||
>@@ -744,14 +811,6 @@ int I420ToARGB1555(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGB1555ROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    I422ToARGB1555Row = I422ToARGB1555Row_Any_DSPR2;
>-    if (IS_ALIGNED(width, 4)) {
>-      I422ToARGB1555Row = I422ToARGB1555Row_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_I422TOARGB1555ROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGB1555Row = I422ToARGB1555Row_Any_MSA;
>@@ -776,19 +835,19 @@ int I420ToARGB1555(const uint8* src_y,
> 
> // Convert I420 to ARGB4444.
> LIBYUV_API
>-int I420ToARGB4444(const uint8* src_y,
>+int I420ToARGB4444(const uint8_t* src_y,
>                    int src_stride_y,
>-                   const uint8* src_u,
>+                   const uint8_t* src_u,
>                    int src_stride_u,
>-                   const uint8* src_v,
>+                   const uint8_t* src_v,
>                    int src_stride_v,
>-                   uint8* dst_argb4444,
>+                   uint8_t* dst_argb4444,
>                    int dst_stride_argb4444,
>                    int width,
>                    int height) {
>   int y;
>-  void (*I422ToARGB4444Row)(const uint8* y_buf, const uint8* u_buf,
>-                            const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToARGB4444Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                            const uint8_t* v_buf, uint8_t* rgb_buf,
>                             const struct YuvConstants* yuvconstants,
>                             int width) = I422ToARGB4444Row_C;
>   if (!src_y || !src_u || !src_v || !dst_argb4444 || width <= 0 ||
>@@ -825,14 +884,6 @@ int I420ToARGB4444(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGB4444ROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    I422ToARGB4444Row = I422ToARGB4444Row_Any_DSPR2;
>-    if (IS_ALIGNED(width, 4)) {
>-      I422ToARGB4444Row = I422ToARGB4444Row_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_I422TOARGB4444ROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGB4444Row = I422ToARGB4444Row_Any_MSA;
>@@ -857,19 +908,19 @@ int I420ToARGB4444(const uint8* src_y,
> 
> // Convert I420 to RGB565.
> LIBYUV_API
>-int I420ToRGB565(const uint8* src_y,
>+int I420ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_u,
>+                 const uint8_t* src_u,
>                  int src_stride_u,
>-                 const uint8* src_v,
>+                 const uint8_t* src_v,
>                  int src_stride_v,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height) {
>   int y;
>-  void (*I422ToRGB565Row)(const uint8* y_buf, const uint8* u_buf,
>-                          const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToRGB565Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                          const uint8_t* v_buf, uint8_t* rgb_buf,
>                           const struct YuvConstants* yuvconstants, int width) =
>       I422ToRGB565Row_C;
>   if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
>@@ -928,19 +979,19 @@ int I420ToRGB565(const uint8* src_y,
> 
> // Convert I422 to RGB565.
> LIBYUV_API
>-int I422ToRGB565(const uint8* src_y,
>+int I422ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_u,
>+                 const uint8_t* src_u,
>                  int src_stride_u,
>-                 const uint8* src_v,
>+                 const uint8_t* src_v,
>                  int src_stride_v,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height) {
>   int y;
>-  void (*I422ToRGB565Row)(const uint8* y_buf, const uint8* u_buf,
>-                          const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToRGB565Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                          const uint8_t* v_buf, uint8_t* rgb_buf,
>                           const struct YuvConstants* yuvconstants, int width) =
>       I422ToRGB565Row_C;
>   if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
>@@ -996,30 +1047,30 @@ int I422ToRGB565(const uint8* src_y,
> }
> 
> // Ordered 8x8 dither for 888 to 565.  Values from 0 to 7.
>-static const uint8 kDither565_4x4[16] = {
>+static const uint8_t kDither565_4x4[16] = {
>     0, 4, 1, 5, 6, 2, 7, 3, 1, 5, 0, 4, 7, 3, 6, 2,
> };
> 
> // Convert I420 to RGB565 with dithering.
> LIBYUV_API
>-int I420ToRGB565Dither(const uint8* src_y,
>+int I420ToRGB565Dither(const uint8_t* src_y,
>                        int src_stride_y,
>-                       const uint8* src_u,
>+                       const uint8_t* src_u,
>                        int src_stride_u,
>-                       const uint8* src_v,
>+                       const uint8_t* src_v,
>                        int src_stride_v,
>-                       uint8* dst_rgb565,
>+                       uint8_t* dst_rgb565,
>                        int dst_stride_rgb565,
>-                       const uint8* dither4x4,
>+                       const uint8_t* dither4x4,
>                        int width,
>                        int height) {
>   int y;
>-  void (*I422ToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I422ToARGBRow_C;
>-  void (*ARGBToRGB565DitherRow)(const uint8* src_argb, uint8* dst_rgb,
>-                                const uint32 dither4, int width) =
>+  void (*ARGBToRGB565DitherRow)(const uint8_t* src_argb, uint8_t* dst_rgb,
>+                                const uint32_t dither4, int width) =
>       ARGBToRGB565DitherRow_C;
>   if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
>     return -1;
>@@ -1057,14 +1108,6 @@ int I420ToRGB565Dither(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2)) {
>-    I422ToARGBRow = I422ToARGBRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGBRow = I422ToARGBRow_Any_MSA;
>@@ -1111,8 +1154,8 @@ int I420ToRGB565Dither(const uint8* src_y,
>     for (y = 0; y < height; ++y) {
>       I422ToARGBRow(src_y, src_u, src_v, row_argb, &kYuvI601Constants, width);
>       ARGBToRGB565DitherRow(row_argb, dst_rgb565,
>-                            *(uint32*)(dither4x4 + ((y & 3) << 2)),  // NOLINT
>-                            width);                                  // NOLINT
>+                            *(uint32_t*)(dither4x4 + ((y & 3) << 2)),  // NOLINT
>+                            width);                                    // NOLINT
>       dst_rgb565 += dst_stride_rgb565;
>       src_y += src_stride_y;
>       if (y & 1) {
>@@ -1125,20 +1168,111 @@ int I420ToRGB565Dither(const uint8* src_y,
>   return 0;
> }
> 
>+// Convert I420 to AR30 with matrix
>+static int I420ToAR30Matrix(const uint8_t* src_y,
>+                            int src_stride_y,
>+                            const uint8_t* src_u,
>+                            int src_stride_u,
>+                            const uint8_t* src_v,
>+                            int src_stride_v,
>+                            uint8_t* dst_ar30,
>+                            int dst_stride_ar30,
>+                            const struct YuvConstants* yuvconstants,
>+                            int width,
>+                            int height) {
>+  int y;
>+  void (*I422ToAR30Row)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>+                        const struct YuvConstants* yuvconstants, int width) =
>+      I422ToAR30Row_C;
>+
>+  if (!src_y || !src_u || !src_v || !dst_ar30 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_ar30 = dst_ar30 + (height - 1) * dst_stride_ar30;
>+    dst_stride_ar30 = -dst_stride_ar30;
>+  }
>+
>+#if defined(HAS_I422TOAR30ROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    I422ToAR30Row = I422ToAR30Row_Any_SSSE3;
>+    if (IS_ALIGNED(width, 8)) {
>+      I422ToAR30Row = I422ToAR30Row_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_I422TOAR30ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToAR30Row = I422ToAR30Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 16)) {
>+      I422ToAR30Row = I422ToAR30Row_AVX2;
>+    }
>+  }
>+#endif
>+
>+  for (y = 0; y < height; ++y) {
>+    I422ToAR30Row(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
>+    dst_ar30 += dst_stride_ar30;
>+    src_y += src_stride_y;
>+    if (y & 1) {
>+      src_u += src_stride_u;
>+      src_v += src_stride_v;
>+    }
>+  }
>+  return 0;
>+}
>+
>+// Convert I420 to AR30.
>+LIBYUV_API
>+int I420ToAR30(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  return I420ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_ar30, dst_stride_ar30,
>+                          &kYuvI601Constants, width, height);
>+}
>+
>+// Convert H420 to AR30.
>+LIBYUV_API
>+int H420ToAR30(const uint8_t* src_y,
>+               int src_stride_y,
>+               const uint8_t* src_u,
>+               int src_stride_u,
>+               const uint8_t* src_v,
>+               int src_stride_v,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  return I420ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
>+                          src_stride_v, dst_ar30, dst_stride_ar30,
>+                          &kYvuH709Constants, width, height);
>+}
>+
> // Convert I420 to specified format
> LIBYUV_API
>-int ConvertFromI420(const uint8* y,
>+int ConvertFromI420(const uint8_t* y,
>                     int y_stride,
>-                    const uint8* u,
>+                    const uint8_t* u,
>                     int u_stride,
>-                    const uint8* v,
>+                    const uint8_t* v,
>                     int v_stride,
>-                    uint8* dst_sample,
>+                    uint8_t* dst_sample,
>                     int dst_sample_stride,
>                     int width,
>                     int height,
>-                    uint32 fourcc) {
>-  uint32 format = CanonicalFourCC(fourcc);
>+                    uint32_t fourcc) {
>+  uint32_t format = CanonicalFourCC(fourcc);
>   int r = 0;
>   if (!y || !u || !v || !dst_sample || width <= 0 || height == 0) {
>     return -1;
>@@ -1200,13 +1334,18 @@ int ConvertFromI420(const uint8* y,
>                      dst_sample_stride ? dst_sample_stride : width * 4, width,
>                      height);
>       break;
>+    case FOURCC_AR30:
>+      r = I420ToAR30(y, y_stride, u, u_stride, v, v_stride, dst_sample,
>+                     dst_sample_stride ? dst_sample_stride : width * 4, width,
>+                     height);
>+      break;
>     case FOURCC_I400:
>       r = I400Copy(y, y_stride, dst_sample,
>                    dst_sample_stride ? dst_sample_stride : width, width,
>                    height);
>       break;
>     case FOURCC_NV12: {
>-      uint8* dst_uv = dst_sample + width * height;
>+      uint8_t* dst_uv = dst_sample + width * height;
>       r = I420ToNV12(y, y_stride, u, u_stride, v, v_stride, dst_sample,
>                      dst_sample_stride ? dst_sample_stride : width, dst_uv,
>                      dst_sample_stride ? dst_sample_stride : width, width,
>@@ -1214,7 +1353,7 @@ int ConvertFromI420(const uint8* y,
>       break;
>     }
>     case FOURCC_NV21: {
>-      uint8* dst_vu = dst_sample + width * height;
>+      uint8_t* dst_vu = dst_sample + width * height;
>       r = I420ToNV21(y, y_stride, u, u_stride, v, v_stride, dst_sample,
>                      dst_sample_stride ? dst_sample_stride : width, dst_vu,
>                      dst_sample_stride ? dst_sample_stride : width, width,
>@@ -1228,8 +1367,8 @@ int ConvertFromI420(const uint8* y,
>       dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
>       int halfstride = (dst_sample_stride + 1) / 2;
>       int halfheight = (height + 1) / 2;
>-      uint8* dst_u;
>-      uint8* dst_v;
>+      uint8_t* dst_u;
>+      uint8_t* dst_v;
>       if (format == FOURCC_YV12) {
>         dst_v = dst_sample + dst_sample_stride * height;
>         dst_u = dst_v + halfstride * halfheight;
>@@ -1246,8 +1385,8 @@ int ConvertFromI420(const uint8* y,
>     case FOURCC_YV16: {
>       dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
>       int halfstride = (dst_sample_stride + 1) / 2;
>-      uint8* dst_u;
>-      uint8* dst_v;
>+      uint8_t* dst_u;
>+      uint8_t* dst_v;
>       if (format == FOURCC_YV16) {
>         dst_v = dst_sample + dst_sample_stride * height;
>         dst_u = dst_v + halfstride * height;
>@@ -1263,8 +1402,8 @@ int ConvertFromI420(const uint8* y,
>     case FOURCC_I444:
>     case FOURCC_YV24: {
>       dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
>-      uint8* dst_u;
>-      uint8* dst_v;
>+      uint8_t* dst_u;
>+      uint8_t* dst_v;
>       if (format == FOURCC_YV24) {
>         dst_v = dst_sample + dst_sample_stride * height;
>         dst_u = dst_v + dst_sample_stride * height;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from_argb.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from_argb.cc
>index 88f38279ace2f54555b76d0fce50585fb6cbcea3..16b838458f02d07767e23468d94b612d5dab2849 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from_argb.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_from_argb.cc
>@@ -22,21 +22,21 @@ extern "C" {
> 
> // ARGB little endian (bgra in memory) to I444
> LIBYUV_API
>-int ARGBToI444(const uint8* src_argb,
>+int ARGBToI444(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>-  void (*ARGBToUV444Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v,
>-                         int width) = ARGBToUV444Row_C;
>+  void (*ARGBToUV444Row)(const uint8_t* src_argb, uint8_t* dst_u,
>+                         uint8_t* dst_v, int width) = ARGBToUV444Row_C;
>   if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -100,14 +100,6 @@ int ARGBToI444(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGBTOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGBToYRow = ARGBToYRow_Any_MSA;
>@@ -130,20 +122,21 @@ int ARGBToI444(const uint8* src_argb,
> 
> // ARGB little endian (bgra in memory) to I422
> LIBYUV_API
>-int ARGBToI422(const uint8* src_argb,
>+int ARGBToI422(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>   if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -197,22 +190,6 @@ int ARGBToI422(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> 
> #if defined(HAS_ARGBTOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>@@ -243,22 +220,23 @@ int ARGBToI422(const uint8* src_argb,
> }
> 
> LIBYUV_API
>-int ARGBToNV12(const uint8* src_argb,
>+int ARGBToNV12(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height) {
>   int y;
>   int halfwidth = (width + 1) >> 1;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>-  void (*MergeUVRow_)(const uint8* src_u, const uint8* src_v, uint8* dst_uv,
>-                      int width) = MergeUVRow_C;
>+  void (*MergeUVRow_)(const uint8_t* src_u, const uint8_t* src_v,
>+                      uint8_t* dst_uv, int width) = MergeUVRow_C;
>   if (!src_argb || !dst_y || !dst_uv || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -344,22 +322,6 @@ int ARGBToNV12(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_MERGEUVROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     MergeUVRow_ = MergeUVRow_Any_MSA;
>@@ -371,7 +333,7 @@ int ARGBToNV12(const uint8* src_argb,
>   {
>     // Allocate a rows of uv.
>     align_buffer_64(row_u, ((halfwidth + 31) & ~31) * 2);
>-    uint8* row_v = row_u + ((halfwidth + 31) & ~31);
>+    uint8_t* row_v = row_u + ((halfwidth + 31) & ~31);
> 
>     for (y = 0; y < height - 1; y += 2) {
>       ARGBToUVRow(src_argb, src_stride_argb, row_u, row_v, width);
>@@ -394,23 +356,24 @@ int ARGBToNV12(const uint8* src_argb,
> 
> // Same as NV12 but U and V swapped.
> LIBYUV_API
>-int ARGBToNV21(const uint8* src_argb,
>+int ARGBToNV21(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>-               int dst_stride_uv,
>+               uint8_t* dst_vu,
>+               int dst_stride_vu,
>                int width,
>                int height) {
>   int y;
>   int halfwidth = (width + 1) >> 1;
>-  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>-  void (*MergeUVRow_)(const uint8* src_u, const uint8* src_v, uint8* dst_uv,
>-                      int width) = MergeUVRow_C;
>-  if (!src_argb || !dst_y || !dst_uv || width <= 0 || height == 0) {
>+  void (*MergeUVRow_)(const uint8_t* src_u, const uint8_t* src_v,
>+                      uint8_t* dst_vu, int width) = MergeUVRow_C;
>+  if (!src_argb || !dst_y || !dst_vu || width <= 0 || height == 0) {
>     return -1;
>   }
>   // Negative height means invert the image.
>@@ -495,22 +458,6 @@ int ARGBToNV21(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_MERGEUVROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     MergeUVRow_ = MergeUVRow_Any_MSA;
>@@ -522,20 +469,20 @@ int ARGBToNV21(const uint8* src_argb,
>   {
>     // Allocate a rows of uv.
>     align_buffer_64(row_u, ((halfwidth + 31) & ~31) * 2);
>-    uint8* row_v = row_u + ((halfwidth + 31) & ~31);
>+    uint8_t* row_v = row_u + ((halfwidth + 31) & ~31);
> 
>     for (y = 0; y < height - 1; y += 2) {
>       ARGBToUVRow(src_argb, src_stride_argb, row_u, row_v, width);
>-      MergeUVRow_(row_v, row_u, dst_uv, halfwidth);
>+      MergeUVRow_(row_v, row_u, dst_vu, halfwidth);
>       ARGBToYRow(src_argb, dst_y, width);
>       ARGBToYRow(src_argb + src_stride_argb, dst_y + dst_stride_y, width);
>       src_argb += src_stride_argb * 2;
>       dst_y += dst_stride_y * 2;
>-      dst_uv += dst_stride_uv;
>+      dst_vu += dst_stride_vu;
>     }
>     if (height & 1) {
>       ARGBToUVRow(src_argb, 0, row_u, row_v, width);
>-      MergeUVRow_(row_v, row_u, dst_uv, halfwidth);
>+      MergeUVRow_(row_v, row_u, dst_vu, halfwidth);
>       ARGBToYRow(src_argb, dst_y, width);
>     }
>     free_aligned_buffer_64(row_u);
>@@ -545,19 +492,20 @@ int ARGBToNV21(const uint8* src_argb,
> 
> // Convert ARGB to YUY2.
> LIBYUV_API
>-int ARGBToYUY2(const uint8* src_argb,
>+int ARGBToYUY2(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yuy2,
>+               uint8_t* dst_yuy2,
>                int dst_stride_yuy2,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVRow)(const uint8* src_argb, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>-  void (*I422ToYUY2Row)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_yuy2, int width) =
>+  void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
>       I422ToYUY2Row_C;
> 
>   if (!src_argb || !dst_yuy2 || width <= 0 || height == 0) {
>@@ -635,6 +583,14 @@ int ARGBToYUY2(const uint8* src_argb,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOYUY2ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToYUY2Row = I422ToYUY2Row_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOYUY2ROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
>@@ -643,22 +599,6 @@ int ARGBToYUY2(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_I422TOYUY2ROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToYUY2Row = I422ToYUY2Row_Any_MSA;
>@@ -671,8 +611,8 @@ int ARGBToYUY2(const uint8* src_argb,
>   {
>     // Allocate a rows of yuv.
>     align_buffer_64(row_y, ((width + 63) & ~63) * 2);
>-    uint8* row_u = row_y + ((width + 63) & ~63);
>-    uint8* row_v = row_u + ((width + 63) & ~63) / 2;
>+    uint8_t* row_u = row_y + ((width + 63) & ~63);
>+    uint8_t* row_v = row_u + ((width + 63) & ~63) / 2;
> 
>     for (y = 0; y < height; ++y) {
>       ARGBToUVRow(src_argb, 0, row_u, row_v, width);
>@@ -689,19 +629,20 @@ int ARGBToYUY2(const uint8* src_argb,
> 
> // Convert ARGB to UYVY.
> LIBYUV_API
>-int ARGBToUYVY(const uint8* src_argb,
>+int ARGBToUYVY(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_uyvy,
>+               uint8_t* dst_uyvy,
>                int dst_stride_uyvy,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVRow)(const uint8* src_argb, int src_stride_argb, uint8* dst_u,
>-                      uint8* dst_v, int width) = ARGBToUVRow_C;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToUVRow)(const uint8_t* src_argb, int src_stride_argb,
>+                      uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVRow_C;
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>-  void (*I422ToUYVYRow)(const uint8* src_y, const uint8* src_u,
>-                        const uint8* src_v, uint8* dst_uyvy, int width) =
>+  void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
>+                        const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
>       I422ToUYVYRow_C;
> 
>   if (!src_argb || !dst_uyvy || width <= 0 || height == 0) {
>@@ -779,6 +720,14 @@ int ARGBToUYVY(const uint8* src_argb,
>     }
>   }
> #endif
>+#if defined(HAS_I422TOUYVYROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      I422ToUYVYRow = I422ToUYVYRow_AVX2;
>+    }
>+  }
>+#endif
> #if defined(HAS_I422TOUYVYROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
>@@ -787,22 +736,6 @@ int ARGBToUYVY(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
>-#if defined(HAS_ARGBTOUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToUVRow = ARGBToUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      ARGBToUVRow = ARGBToUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_I422TOUYVYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToUYVYRow = I422ToUYVYRow_Any_MSA;
>@@ -815,8 +748,8 @@ int ARGBToUYVY(const uint8* src_argb,
>   {
>     // Allocate a rows of yuv.
>     align_buffer_64(row_y, ((width + 63) & ~63) * 2);
>-    uint8* row_u = row_y + ((width + 63) & ~63);
>-    uint8* row_v = row_u + ((width + 63) & ~63) / 2;
>+    uint8_t* row_u = row_y + ((width + 63) & ~63);
>+    uint8_t* row_v = row_u + ((width + 63) & ~63) / 2;
> 
>     for (y = 0; y < height; ++y) {
>       ARGBToUVRow(src_argb, 0, row_u, row_v, width);
>@@ -833,14 +766,14 @@ int ARGBToUYVY(const uint8* src_argb,
> 
> // Convert ARGB to I400.
> LIBYUV_API
>-int ARGBToI400(const uint8* src_argb,
>+int ARGBToI400(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int width) =
>+  void (*ARGBToYRow)(const uint8_t* src_argb, uint8_t* dst_y, int width) =
>       ARGBToYRow_C;
>   if (!src_argb || !dst_y || width <= 0 || height == 0) {
>     return -1;
>@@ -880,14 +813,6 @@ int ARGBToI400(const uint8* src_argb,
>     }
>   }
> #endif
>-#if defined(HAS_ARGBTOYROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    ARGBToYRow = ARGBToYRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 8)) {
>-      ARGBToYRow = ARGBToYRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGBTOYROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ARGBToYRow = ARGBToYRow_Any_MSA;
>@@ -906,31 +831,31 @@ int ARGBToI400(const uint8* src_argb,
> }
> 
> // Shuffle table for converting ARGB to RGBA.
>-static uvec8 kShuffleMaskARGBToRGBA = {3u,  0u, 1u, 2u,  7u,  4u,  5u,  6u,
>-                                       11u, 8u, 9u, 10u, 15u, 12u, 13u, 14u};
>+static const uvec8 kShuffleMaskARGBToRGBA = {
>+    3u, 0u, 1u, 2u, 7u, 4u, 5u, 6u, 11u, 8u, 9u, 10u, 15u, 12u, 13u, 14u};
> 
> // Convert ARGB to RGBA.
> LIBYUV_API
>-int ARGBToRGBA(const uint8* src_argb,
>+int ARGBToRGBA(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height) {
>   return ARGBShuffle(src_argb, src_stride_argb, dst_rgba, dst_stride_rgba,
>-                     (const uint8*)(&kShuffleMaskARGBToRGBA), width, height);
>+                     (const uint8_t*)(&kShuffleMaskARGBToRGBA), width, height);
> }
> 
> // Convert ARGB To RGB24.
> LIBYUV_API
>-int ARGBToRGB24(const uint8* src_argb,
>+int ARGBToRGB24(const uint8_t* src_argb,
>                 int src_stride_argb,
>-                uint8* dst_rgb24,
>+                uint8_t* dst_rgb24,
>                 int dst_stride_rgb24,
>                 int width,
>                 int height) {
>   int y;
>-  void (*ARGBToRGB24Row)(const uint8* src_argb, uint8* dst_rgb, int width) =
>+  void (*ARGBToRGB24Row)(const uint8_t* src_argb, uint8_t* dst_rgb, int width) =
>       ARGBToRGB24Row_C;
>   if (!src_argb || !dst_rgb24 || width <= 0 || height == 0) {
>     return -1;
>@@ -981,14 +906,14 @@ int ARGBToRGB24(const uint8* src_argb,
> 
> // Convert ARGB To RAW.
> LIBYUV_API
>-int ARGBToRAW(const uint8* src_argb,
>+int ARGBToRAW(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_raw,
>+              uint8_t* dst_raw,
>               int dst_stride_raw,
>               int width,
>               int height) {
>   int y;
>-  void (*ARGBToRAWRow)(const uint8* src_argb, uint8* dst_rgb, int width) =
>+  void (*ARGBToRAWRow)(const uint8_t* src_argb, uint8_t* dst_rgb, int width) =
>       ARGBToRAWRow_C;
>   if (!src_argb || !dst_raw || width <= 0 || height == 0) {
>     return -1;
>@@ -1038,22 +963,22 @@ int ARGBToRAW(const uint8* src_argb,
> }
> 
> // Ordered 8x8 dither for 888 to 565.  Values from 0 to 7.
>-static const uint8 kDither565_4x4[16] = {
>+static const uint8_t kDither565_4x4[16] = {
>     0, 4, 1, 5, 6, 2, 7, 3, 1, 5, 0, 4, 7, 3, 6, 2,
> };
> 
> // Convert ARGB To RGB565 with 4x4 dither matrix (16 bytes).
> LIBYUV_API
>-int ARGBToRGB565Dither(const uint8* src_argb,
>+int ARGBToRGB565Dither(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_rgb565,
>+                       uint8_t* dst_rgb565,
>                        int dst_stride_rgb565,
>-                       const uint8* dither4x4,
>+                       const uint8_t* dither4x4,
>                        int width,
>                        int height) {
>   int y;
>-  void (*ARGBToRGB565DitherRow)(const uint8* src_argb, uint8* dst_rgb,
>-                                const uint32 dither4, int width) =
>+  void (*ARGBToRGB565DitherRow)(const uint8_t* src_argb, uint8_t* dst_rgb,
>+                                const uint32_t dither4, int width) =
>       ARGBToRGB565DitherRow_C;
>   if (!src_argb || !dst_rgb565 || width <= 0 || height == 0) {
>     return -1;
>@@ -1101,7 +1026,7 @@ int ARGBToRGB565Dither(const uint8* src_argb,
> 
>   for (y = 0; y < height; ++y) {
>     ARGBToRGB565DitherRow(src_argb, dst_rgb565,
>-                          *(uint32*)(dither4x4 + ((y & 3) << 2)),
>+                          *(uint32_t*)(dither4x4 + ((y & 3) << 2)),  // NOLINT
>                           width); /* NOLINT */
>     src_argb += src_stride_argb;
>     dst_rgb565 += dst_stride_rgb565;
>@@ -1112,15 +1037,15 @@ int ARGBToRGB565Dither(const uint8* src_argb,
> // Convert ARGB To RGB565.
> // TODO(fbarchard): Consider using dither function low level with zeros.
> LIBYUV_API
>-int ARGBToRGB565(const uint8* src_argb,
>+int ARGBToRGB565(const uint8_t* src_argb,
>                  int src_stride_argb,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height) {
>   int y;
>-  void (*ARGBToRGB565Row)(const uint8* src_argb, uint8* dst_rgb, int width) =
>-      ARGBToRGB565Row_C;
>+  void (*ARGBToRGB565Row)(const uint8_t* src_argb, uint8_t* dst_rgb,
>+                          int width) = ARGBToRGB565Row_C;
>   if (!src_argb || !dst_rgb565 || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1178,15 +1103,15 @@ int ARGBToRGB565(const uint8* src_argb,
> 
> // Convert ARGB To ARGB1555.
> LIBYUV_API
>-int ARGBToARGB1555(const uint8* src_argb,
>+int ARGBToARGB1555(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb1555,
>+                   uint8_t* dst_argb1555,
>                    int dst_stride_argb1555,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGBToARGB1555Row)(const uint8* src_argb, uint8* dst_rgb, int width) =
>-      ARGBToARGB1555Row_C;
>+  void (*ARGBToARGB1555Row)(const uint8_t* src_argb, uint8_t* dst_rgb,
>+                            int width) = ARGBToARGB1555Row_C;
>   if (!src_argb || !dst_argb1555 || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1244,15 +1169,15 @@ int ARGBToARGB1555(const uint8* src_argb,
> 
> // Convert ARGB To ARGB4444.
> LIBYUV_API
>-int ARGBToARGB4444(const uint8* src_argb,
>+int ARGBToARGB4444(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb4444,
>+                   uint8_t* dst_argb4444,
>                    int dst_stride_argb4444,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGBToARGB4444Row)(const uint8* src_argb, uint8* dst_rgb, int width) =
>-      ARGBToARGB4444Row_C;
>+  void (*ARGBToARGB4444Row)(const uint8_t* src_argb, uint8_t* dst_rgb,
>+                            int width) = ARGBToARGB4444Row_C;
>   if (!src_argb || !dst_argb4444 || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1308,22 +1233,121 @@ int ARGBToARGB4444(const uint8* src_argb,
>   return 0;
> }
> 
>+// Convert ABGR To AR30.
>+LIBYUV_API
>+int ABGRToAR30(const uint8_t* src_abgr,
>+               int src_stride_abgr,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  int y;
>+  void (*ABGRToAR30Row)(const uint8_t* src_abgr, uint8_t* dst_rgb, int width) =
>+      ABGRToAR30Row_C;
>+  if (!src_abgr || !dst_ar30 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  if (height < 0) {
>+    height = -height;
>+    src_abgr = src_abgr + (height - 1) * src_stride_abgr;
>+    src_stride_abgr = -src_stride_abgr;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_abgr == width * 4 && dst_stride_ar30 == width * 4) {
>+    width *= height;
>+    height = 1;
>+    src_stride_abgr = dst_stride_ar30 = 0;
>+  }
>+#if defined(HAS_ABGRTOAR30ROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    ABGRToAR30Row = ABGRToAR30Row_Any_SSSE3;
>+    if (IS_ALIGNED(width, 4)) {
>+      ABGRToAR30Row = ABGRToAR30Row_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_ABGRTOAR30ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    ABGRToAR30Row = ABGRToAR30Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 8)) {
>+      ABGRToAR30Row = ABGRToAR30Row_AVX2;
>+    }
>+  }
>+#endif
>+  for (y = 0; y < height; ++y) {
>+    ABGRToAR30Row(src_abgr, dst_ar30, width);
>+    src_abgr += src_stride_abgr;
>+    dst_ar30 += dst_stride_ar30;
>+  }
>+  return 0;
>+}
>+
>+// Convert ARGB To AR30.
>+LIBYUV_API
>+int ARGBToAR30(const uint8_t* src_argb,
>+               int src_stride_argb,
>+               uint8_t* dst_ar30,
>+               int dst_stride_ar30,
>+               int width,
>+               int height) {
>+  int y;
>+  void (*ARGBToAR30Row)(const uint8_t* src_argb, uint8_t* dst_rgb, int width) =
>+      ARGBToAR30Row_C;
>+  if (!src_argb || !dst_ar30 || width <= 0 || height == 0) {
>+    return -1;
>+  }
>+  if (height < 0) {
>+    height = -height;
>+    src_argb = src_argb + (height - 1) * src_stride_argb;
>+    src_stride_argb = -src_stride_argb;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_argb == width * 4 && dst_stride_ar30 == width * 4) {
>+    width *= height;
>+    height = 1;
>+    src_stride_argb = dst_stride_ar30 = 0;
>+  }
>+#if defined(HAS_ARGBTOAR30ROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    ARGBToAR30Row = ARGBToAR30Row_Any_SSSE3;
>+    if (IS_ALIGNED(width, 4)) {
>+      ARGBToAR30Row = ARGBToAR30Row_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_ARGBTOAR30ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    ARGBToAR30Row = ARGBToAR30Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 8)) {
>+      ARGBToAR30Row = ARGBToAR30Row_AVX2;
>+    }
>+  }
>+#endif
>+  for (y = 0; y < height; ++y) {
>+    ARGBToAR30Row(src_argb, dst_ar30, width);
>+    src_argb += src_stride_argb;
>+    dst_ar30 += dst_stride_ar30;
>+  }
>+  return 0;
>+}
>+
> // Convert ARGB to J420. (JPeg full range I420).
> LIBYUV_API
>-int ARGBToJ420(const uint8* src_argb,
>+int ARGBToJ420(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVJRow)(const uint8* src_argb0, int src_stride_argb,
>-                       uint8* dst_u, uint8* dst_v, int width) = ARGBToUVJRow_C;
>-  void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_yj, int width) =
>+  void (*ARGBToUVJRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                       uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVJRow_C;
>+  void (*ARGBToYJRow)(const uint8_t* src_argb, uint8_t* dst_yj, int width) =
>       ARGBToYJRow_C;
>   if (!src_argb || !dst_yj || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -1403,20 +1427,21 @@ int ARGBToJ420(const uint8* src_argb,
> 
> // Convert ARGB to J422. (JPeg full range I422).
> LIBYUV_API
>-int ARGBToJ422(const uint8* src_argb,
>+int ARGBToJ422(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToUVJRow)(const uint8* src_argb0, int src_stride_argb,
>-                       uint8* dst_u, uint8* dst_v, int width) = ARGBToUVJRow_C;
>-  void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_yj, int width) =
>+  void (*ARGBToUVJRow)(const uint8_t* src_argb0, int src_stride_argb,
>+                       uint8_t* dst_u, uint8_t* dst_v, int width) =
>+      ARGBToUVJRow_C;
>+  void (*ARGBToYJRow)(const uint8_t* src_argb, uint8_t* dst_yj, int width) =
>       ARGBToYJRow_C;
>   if (!src_argb || !dst_yj || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -1498,14 +1523,14 @@ int ARGBToJ422(const uint8* src_argb,
> 
> // Convert ARGB to J400.
> LIBYUV_API
>-int ARGBToJ400(const uint8* src_argb,
>+int ARGBToJ400(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_yj,
>+               uint8_t* dst_yj,
>                int dst_stride_yj,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_yj, int width) =
>+  void (*ARGBToYJRow)(const uint8_t* src_argb, uint8_t* dst_yj, int width) =
>       ARGBToYJRow_C;
>   if (!src_argb || !dst_yj || width <= 0 || height == 0) {
>     return -1;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_jpeg.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_jpeg.cc
>index 216a9f26d8723481d1d4c578a24a436975ae32c0..ae3cc18cd247c2fe976ef7d7ebe48b8da67a6727 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_jpeg.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_jpeg.cc
>@@ -22,18 +22,18 @@ extern "C" {
> 
> #ifdef HAVE_JPEG
> struct I420Buffers {
>-  uint8* y;
>+  uint8_t* y;
>   int y_stride;
>-  uint8* u;
>+  uint8_t* u;
>   int u_stride;
>-  uint8* v;
>+  uint8_t* v;
>   int v_stride;
>   int w;
>   int h;
> };
> 
> static void JpegCopyI420(void* opaque,
>-                         const uint8* const* data,
>+                         const uint8_t* const* data,
>                          const int* strides,
>                          int rows) {
>   I420Buffers* dest = (I420Buffers*)(opaque);
>@@ -47,7 +47,7 @@ static void JpegCopyI420(void* opaque,
> }
> 
> static void JpegI422ToI420(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   I420Buffers* dest = (I420Buffers*)(opaque);
>@@ -61,7 +61,7 @@ static void JpegI422ToI420(void* opaque,
> }
> 
> static void JpegI444ToI420(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   I420Buffers* dest = (I420Buffers*)(opaque);
>@@ -75,7 +75,7 @@ static void JpegI444ToI420(void* opaque,
> }
> 
> static void JpegI400ToI420(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   I420Buffers* dest = (I420Buffers*)(opaque);
>@@ -89,7 +89,10 @@ static void JpegI400ToI420(void* opaque,
> 
> // Query size of MJPG in pixels.
> LIBYUV_API
>-int MJPGSize(const uint8* sample, size_t sample_size, int* width, int* height) {
>+int MJPGSize(const uint8_t* sample,
>+             size_t sample_size,
>+             int* width,
>+             int* height) {
>   MJpegDecoder mjpeg_decoder;
>   LIBYUV_BOOL ret = mjpeg_decoder.LoadFrame(sample, sample_size);
>   if (ret) {
>@@ -101,20 +104,21 @@ int MJPGSize(const uint8* sample, size_t sample_size, int* width, int* height) {
> }
> 
> // MJPG (Motion JPeg) to I420
>-// TODO(fbarchard): review w and h requirement. dw and dh may be enough.
>+// TODO(fbarchard): review src_width and src_height requirement. dst_width and
>+// dst_height may be enough.
> LIBYUV_API
>-int MJPGToI420(const uint8* sample,
>+int MJPGToI420(const uint8_t* sample,
>                size_t sample_size,
>-               uint8* y,
>-               int y_stride,
>-               uint8* u,
>-               int u_stride,
>-               uint8* v,
>-               int v_stride,
>-               int w,
>-               int h,
>-               int dw,
>-               int dh) {
>+               uint8_t* dst_y,
>+               int dst_stride_y,
>+               uint8_t* dst_u,
>+               int dst_stride_u,
>+               uint8_t* dst_v,
>+               int dst_stride_v,
>+               int src_width,
>+               int src_height,
>+               int dst_width,
>+               int dst_height) {
>   if (sample_size == kUnknownDataSize) {
>     // ERROR: MJPEG frame size unknown
>     return -1;
>@@ -123,14 +127,15 @@ int MJPGToI420(const uint8* sample,
>   // TODO(fbarchard): Port MJpeg to C.
>   MJpegDecoder mjpeg_decoder;
>   LIBYUV_BOOL ret = mjpeg_decoder.LoadFrame(sample, sample_size);
>-  if (ret &&
>-      (mjpeg_decoder.GetWidth() != w || mjpeg_decoder.GetHeight() != h)) {
>+  if (ret && (mjpeg_decoder.GetWidth() != src_width ||
>+              mjpeg_decoder.GetHeight() != src_height)) {
>     // ERROR: MJPEG frame has unexpected dimensions
>     mjpeg_decoder.UnloadFrame();
>     return 1;  // runtime failure
>   }
>   if (ret) {
>-    I420Buffers bufs = {y, y_stride, u, u_stride, v, v_stride, dw, dh};
>+    I420Buffers bufs = {dst_y, dst_stride_y, dst_u,     dst_stride_u,
>+                        dst_v, dst_stride_v, dst_width, dst_height};
>     // YUV420
>     if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
>         mjpeg_decoder.GetNumComponents() == 3 &&
>@@ -140,7 +145,8 @@ int MJPGToI420(const uint8* sample,
>         mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>         mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>         mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegCopyI420, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegCopyI420, &bufs, dst_width,
>+                                           dst_height);
>       // YUV422
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceYCbCr &&
>@@ -151,7 +157,8 @@ int MJPGToI420(const uint8* sample,
>                mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>                mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToI420, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToI420, &bufs, dst_width,
>+                                           dst_height);
>       // YUV444
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceYCbCr &&
>@@ -162,14 +169,16 @@ int MJPGToI420(const uint8* sample,
>                mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>                mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToI420, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToI420, &bufs, dst_width,
>+                                           dst_height);
>       // YUV400
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceGrayscale &&
>                mjpeg_decoder.GetNumComponents() == 1 &&
>                mjpeg_decoder.GetVertSampFactor(0) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(0) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToI420, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToI420, &bufs, dst_width,
>+                                           dst_height);
>     } else {
>       // TODO(fbarchard): Implement conversion for any other colorspace/sample
>       // factors that occur in practice.
>@@ -183,14 +192,14 @@ int MJPGToI420(const uint8* sample,
> 
> #ifdef HAVE_JPEG
> struct ARGBBuffers {
>-  uint8* argb;
>+  uint8_t* argb;
>   int argb_stride;
>   int w;
>   int h;
> };
> 
> static void JpegI420ToARGB(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   ARGBBuffers* dest = (ARGBBuffers*)(opaque);
>@@ -201,7 +210,7 @@ static void JpegI420ToARGB(void* opaque,
> }
> 
> static void JpegI422ToARGB(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   ARGBBuffers* dest = (ARGBBuffers*)(opaque);
>@@ -212,7 +221,7 @@ static void JpegI422ToARGB(void* opaque,
> }
> 
> static void JpegI444ToARGB(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   ARGBBuffers* dest = (ARGBBuffers*)(opaque);
>@@ -223,7 +232,7 @@ static void JpegI444ToARGB(void* opaque,
> }
> 
> static void JpegI400ToARGB(void* opaque,
>-                           const uint8* const* data,
>+                           const uint8_t* const* data,
>                            const int* strides,
>                            int rows) {
>   ARGBBuffers* dest = (ARGBBuffers*)(opaque);
>@@ -233,16 +242,17 @@ static void JpegI400ToARGB(void* opaque,
> }
> 
> // MJPG (Motion JPeg) to ARGB
>-// TODO(fbarchard): review w and h requirement. dw and dh may be enough.
>+// TODO(fbarchard): review src_width and src_height requirement. dst_width and
>+// dst_height may be enough.
> LIBYUV_API
>-int MJPGToARGB(const uint8* sample,
>+int MJPGToARGB(const uint8_t* sample,
>                size_t sample_size,
>-               uint8* argb,
>-               int argb_stride,
>-               int w,
>-               int h,
>-               int dw,
>-               int dh) {
>+               uint8_t* dst_argb,
>+               int dst_stride_argb,
>+               int src_width,
>+               int src_height,
>+               int dst_width,
>+               int dst_height) {
>   if (sample_size == kUnknownDataSize) {
>     // ERROR: MJPEG frame size unknown
>     return -1;
>@@ -251,14 +261,14 @@ int MJPGToARGB(const uint8* sample,
>   // TODO(fbarchard): Port MJpeg to C.
>   MJpegDecoder mjpeg_decoder;
>   LIBYUV_BOOL ret = mjpeg_decoder.LoadFrame(sample, sample_size);
>-  if (ret &&
>-      (mjpeg_decoder.GetWidth() != w || mjpeg_decoder.GetHeight() != h)) {
>+  if (ret && (mjpeg_decoder.GetWidth() != src_width ||
>+              mjpeg_decoder.GetHeight() != src_height)) {
>     // ERROR: MJPEG frame has unexpected dimensions
>     mjpeg_decoder.UnloadFrame();
>     return 1;  // runtime failure
>   }
>   if (ret) {
>-    ARGBBuffers bufs = {argb, argb_stride, dw, dh};
>+    ARGBBuffers bufs = {dst_argb, dst_stride_argb, dst_width, dst_height};
>     // YUV420
>     if (mjpeg_decoder.GetColorSpace() == MJpegDecoder::kColorSpaceYCbCr &&
>         mjpeg_decoder.GetNumComponents() == 3 &&
>@@ -268,7 +278,8 @@ int MJPGToARGB(const uint8* sample,
>         mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>         mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>         mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI420ToARGB, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI420ToARGB, &bufs, dst_width,
>+                                           dst_height);
>       // YUV422
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceYCbCr &&
>@@ -279,7 +290,8 @@ int MJPGToARGB(const uint8* sample,
>                mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>                mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToARGB, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI422ToARGB, &bufs, dst_width,
>+                                           dst_height);
>       // YUV444
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceYCbCr &&
>@@ -290,14 +302,16 @@ int MJPGToARGB(const uint8* sample,
>                mjpeg_decoder.GetHorizSampFactor(1) == 1 &&
>                mjpeg_decoder.GetVertSampFactor(2) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(2) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToARGB, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI444ToARGB, &bufs, dst_width,
>+                                           dst_height);
>       // YUV400
>     } else if (mjpeg_decoder.GetColorSpace() ==
>                    MJpegDecoder::kColorSpaceGrayscale &&
>                mjpeg_decoder.GetNumComponents() == 1 &&
>                mjpeg_decoder.GetVertSampFactor(0) == 1 &&
>                mjpeg_decoder.GetHorizSampFactor(0) == 1) {
>-      ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToARGB, &bufs, dw, dh);
>+      ret = mjpeg_decoder.DecodeToCallback(&JpegI400ToARGB, &bufs, dst_width,
>+                                           dst_height);
>     } else {
>       // TODO(fbarchard): Implement conversion for any other colorspace/sample
>       // factors that occur in practice.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_argb.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_argb.cc
>index 63a5104b3c70bb75392d710525de70cdf7d4b37a..677e5d56fcc98481af504b10a2708435a6cebf9d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_argb.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_argb.cc
>@@ -29,10 +29,10 @@ extern "C" {
> // sample_size is measured in bytes and is the size of the frame.
> //   With MJPEG it is the compressed size of the frame.
> LIBYUV_API
>-int ConvertToARGB(const uint8* sample,
>+int ConvertToARGB(const uint8_t* sample,
>                   size_t sample_size,
>-                  uint8* crop_argb,
>-                  int argb_stride,
>+                  uint8_t* dst_argb,
>+                  int dst_stride_argb,
>                   int crop_x,
>                   int crop_y,
>                   int src_width,
>@@ -40,11 +40,11 @@ int ConvertToARGB(const uint8* sample,
>                   int crop_width,
>                   int crop_height,
>                   enum RotationMode rotation,
>-                  uint32 fourcc) {
>-  uint32 format = CanonicalFourCC(fourcc);
>+                  uint32_t fourcc) {
>+  uint32_t format = CanonicalFourCC(fourcc);
>   int aligned_src_width = (src_width + 1) & ~1;
>-  const uint8* src;
>-  const uint8* src_uv;
>+  const uint8_t* src;
>+  const uint8_t* src_uv;
>   int abs_src_height = (src_height < 0) ? -src_height : src_height;
>   int inv_crop_height = (crop_height < 0) ? -crop_height : crop_height;
>   int r = 0;
>@@ -52,17 +52,17 @@ int ConvertToARGB(const uint8* sample,
>   // One pass rotation is available for some formats. For the rest, convert
>   // to ARGB (with optional vertical flipping) into a temporary ARGB buffer,
>   // and then rotate the ARGB to the final destination buffer.
>-  // For in-place conversion, if destination crop_argb is same as source sample,
>+  // For in-place conversion, if destination dst_argb is same as source sample,
>   // also enable temporary buffer.
>   LIBYUV_BOOL need_buf =
>-      (rotation && format != FOURCC_ARGB) || crop_argb == sample;
>-  uint8* dest_argb = crop_argb;
>-  int dest_argb_stride = argb_stride;
>-  uint8* rotate_buffer = NULL;
>+      (rotation && format != FOURCC_ARGB) || dst_argb == sample;
>+  uint8_t* dest_argb = dst_argb;
>+  int dest_dst_stride_argb = dst_stride_argb;
>+  uint8_t* rotate_buffer = NULL;
>   int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
> 
>-  if (crop_argb == NULL || sample == NULL || src_width <= 0 ||
>-      crop_width <= 0 || src_height == 0 || crop_height == 0) {
>+  if (dst_argb == NULL || sample == NULL || src_width <= 0 || crop_width <= 0 ||
>+      src_height == 0 || crop_height == 0) {
>     return -1;
>   }
>   if (src_height < 0) {
>@@ -71,76 +71,76 @@ int ConvertToARGB(const uint8* sample,
> 
>   if (need_buf) {
>     int argb_size = crop_width * 4 * abs_crop_height;
>-    rotate_buffer = (uint8*)malloc(argb_size); /* NOLINT */
>+    rotate_buffer = (uint8_t*)malloc(argb_size); /* NOLINT */
>     if (!rotate_buffer) {
>       return 1;  // Out of memory runtime error.
>     }
>-    crop_argb = rotate_buffer;
>-    argb_stride = crop_width * 4;
>+    dst_argb = rotate_buffer;
>+    dst_stride_argb = crop_width * 4;
>   }
> 
>   switch (format) {
>     // Single plane formats
>     case FOURCC_YUY2:
>       src = sample + (aligned_src_width * crop_y + crop_x) * 2;
>-      r = YUY2ToARGB(src, aligned_src_width * 2, crop_argb, argb_stride,
>+      r = YUY2ToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
>                      crop_width, inv_crop_height);
>       break;
>     case FOURCC_UYVY:
>       src = sample + (aligned_src_width * crop_y + crop_x) * 2;
>-      r = UYVYToARGB(src, aligned_src_width * 2, crop_argb, argb_stride,
>+      r = UYVYToARGB(src, aligned_src_width * 2, dst_argb, dst_stride_argb,
>                      crop_width, inv_crop_height);
>       break;
>     case FOURCC_24BG:
>       src = sample + (src_width * crop_y + crop_x) * 3;
>-      r = RGB24ToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
>+      r = RGB24ToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
>                       inv_crop_height);
>       break;
>     case FOURCC_RAW:
>       src = sample + (src_width * crop_y + crop_x) * 3;
>-      r = RAWToARGB(src, src_width * 3, crop_argb, argb_stride, crop_width,
>+      r = RAWToARGB(src, src_width * 3, dst_argb, dst_stride_argb, crop_width,
>                     inv_crop_height);
>       break;
>     case FOURCC_ARGB:
>       if (!need_buf && !rotation) {
>         src = sample + (src_width * crop_y + crop_x) * 4;
>-        r = ARGBToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
>-                       inv_crop_height);
>+        r = ARGBToARGB(src, src_width * 4, dst_argb, dst_stride_argb,
>+                       crop_width, inv_crop_height);
>       }
>       break;
>     case FOURCC_BGRA:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = BGRAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
>+      r = BGRAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
>                      inv_crop_height);
>       break;
>     case FOURCC_ABGR:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = ABGRToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
>+      r = ABGRToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
>                      inv_crop_height);
>       break;
>     case FOURCC_RGBA:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = RGBAToARGB(src, src_width * 4, crop_argb, argb_stride, crop_width,
>+      r = RGBAToARGB(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
>                      inv_crop_height);
>       break;
>     case FOURCC_RGBP:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = RGB565ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
>-                       inv_crop_height);
>+      r = RGB565ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
>+                       crop_width, inv_crop_height);
>       break;
>     case FOURCC_RGBO:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = ARGB1555ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
>-                         inv_crop_height);
>+      r = ARGB1555ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
>+                         crop_width, inv_crop_height);
>       break;
>     case FOURCC_R444:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = ARGB4444ToARGB(src, src_width * 2, crop_argb, argb_stride, crop_width,
>-                         inv_crop_height);
>+      r = ARGB4444ToARGB(src, src_width * 2, dst_argb, dst_stride_argb,
>+                         crop_width, inv_crop_height);
>       break;
>     case FOURCC_I400:
>       src = sample + src_width * crop_y + crop_x;
>-      r = I400ToARGB(src, src_width, crop_argb, argb_stride, crop_width,
>+      r = I400ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
>                      inv_crop_height);
>       break;
> 
>@@ -148,27 +148,27 @@ int ConvertToARGB(const uint8* sample,
>     case FOURCC_NV12:
>       src = sample + (src_width * crop_y + crop_x);
>       src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x;
>-      r = NV12ToARGB(src, src_width, src_uv, aligned_src_width, crop_argb,
>-                     argb_stride, crop_width, inv_crop_height);
>+      r = NV12ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
>+                     dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     case FOURCC_NV21:
>       src = sample + (src_width * crop_y + crop_x);
>       src_uv = sample + aligned_src_width * (src_height + crop_y / 2) + crop_x;
>       // Call NV12 but with u and v parameters swapped.
>-      r = NV21ToARGB(src, src_width, src_uv, aligned_src_width, crop_argb,
>-                     argb_stride, crop_width, inv_crop_height);
>+      r = NV21ToARGB(src, src_width, src_uv, aligned_src_width, dst_argb,
>+                     dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     case FOURCC_M420:
>       src = sample + (src_width * crop_y) * 12 / 8 + crop_x;
>-      r = M420ToARGB(src, src_width, crop_argb, argb_stride, crop_width,
>+      r = M420ToARGB(src, src_width, dst_argb, dst_stride_argb, crop_width,
>                      inv_crop_height);
>       break;
>     // Triplanar formats
>     case FOURCC_I420:
>     case FOURCC_YV12: {
>-      const uint8* src_y = sample + (src_width * crop_y + crop_x);
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       int halfwidth = (src_width + 1) / 2;
>       int halfheight = (abs_src_height + 1) / 2;
>       if (format == FOURCC_YV12) {
>@@ -183,14 +183,14 @@ int ConvertToARGB(const uint8* sample,
>                 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
>       }
>       r = I420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
>-                     crop_argb, argb_stride, crop_width, inv_crop_height);
>+                     dst_argb, dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     }
> 
>     case FOURCC_J420: {
>-      const uint8* src_y = sample + (src_width * crop_y + crop_x);
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       int halfwidth = (src_width + 1) / 2;
>       int halfheight = (abs_src_height + 1) / 2;
>       src_u = sample + src_width * abs_src_height +
>@@ -198,15 +198,15 @@ int ConvertToARGB(const uint8* sample,
>       src_v = sample + src_width * abs_src_height +
>               halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
>       r = J420ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
>-                     crop_argb, argb_stride, crop_width, inv_crop_height);
>+                     dst_argb, dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     }
> 
>     case FOURCC_I422:
>     case FOURCC_YV16: {
>-      const uint8* src_y = sample + src_width * crop_y + crop_x;
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + src_width * crop_y + crop_x;
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       int halfwidth = (src_width + 1) / 2;
>       if (format == FOURCC_YV16) {
>         src_v = sample + src_width * abs_src_height + halfwidth * crop_y +
>@@ -220,14 +220,14 @@ int ConvertToARGB(const uint8* sample,
>                 halfwidth * (abs_src_height + crop_y) + crop_x / 2;
>       }
>       r = I422ToARGB(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
>-                     crop_argb, argb_stride, crop_width, inv_crop_height);
>+                     dst_argb, dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     }
>     case FOURCC_I444:
>     case FOURCC_YV24: {
>-      const uint8* src_y = sample + src_width * crop_y + crop_x;
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + src_width * crop_y + crop_x;
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       if (format == FOURCC_YV24) {
>         src_v = sample + src_width * (abs_src_height + crop_y) + crop_x;
>         src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
>@@ -236,12 +236,12 @@ int ConvertToARGB(const uint8* sample,
>         src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
>       }
>       r = I444ToARGB(src_y, src_width, src_u, src_width, src_v, src_width,
>-                     crop_argb, argb_stride, crop_width, inv_crop_height);
>+                     dst_argb, dst_stride_argb, crop_width, inv_crop_height);
>       break;
>     }
> #ifdef HAVE_JPEG
>     case FOURCC_MJPG:
>-      r = MJPGToARGB(sample, sample_size, crop_argb, argb_stride, src_width,
>+      r = MJPGToARGB(sample, sample_size, dst_argb, dst_stride_argb, src_width,
>                      abs_src_height, crop_width, inv_crop_height);
>       break;
> #endif
>@@ -251,13 +251,13 @@ int ConvertToARGB(const uint8* sample,
> 
>   if (need_buf) {
>     if (!r) {
>-      r = ARGBRotate(crop_argb, argb_stride, dest_argb, dest_argb_stride,
>+      r = ARGBRotate(dst_argb, dst_stride_argb, dest_argb, dest_dst_stride_argb,
>                      crop_width, abs_crop_height, rotation);
>     }
>     free(rotate_buffer);
>   } else if (rotation) {
>     src = sample + (src_width * crop_y + crop_x) * 4;
>-    r = ARGBRotate(src, src_width * 4, crop_argb, argb_stride, crop_width,
>+    r = ARGBRotate(src, src_width * 4, dst_argb, dst_stride_argb, crop_width,
>                    inv_crop_height, rotation);
>   }
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_i420.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_i420.cc
>index a50689db949a8f1eecefcb543d562f0f4987f41e..1bed9d6440db92a696b2167c88873963e4c29f05 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_i420.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/convert_to_i420.cc
>@@ -25,14 +25,14 @@ extern "C" {
> // sample_size is measured in bytes and is the size of the frame.
> //   With MJPEG it is the compressed size of the frame.
> LIBYUV_API
>-int ConvertToI420(const uint8* sample,
>+int ConvertToI420(const uint8_t* sample,
>                   size_t sample_size,
>-                  uint8* y,
>-                  int y_stride,
>-                  uint8* u,
>-                  int u_stride,
>-                  uint8* v,
>-                  int v_stride,
>+                  uint8_t* dst_y,
>+                  int dst_stride_y,
>+                  uint8_t* dst_u,
>+                  int dst_stride_u,
>+                  uint8_t* dst_v,
>+                  int dst_stride_v,
>                   int crop_x,
>                   int crop_y,
>                   int src_width,
>@@ -40,11 +40,11 @@ int ConvertToI420(const uint8* sample,
>                   int crop_width,
>                   int crop_height,
>                   enum RotationMode rotation,
>-                  uint32 fourcc) {
>-  uint32 format = CanonicalFourCC(fourcc);
>+                  uint32_t fourcc) {
>+  uint32_t format = CanonicalFourCC(fourcc);
>   int aligned_src_width = (src_width + 1) & ~1;
>-  const uint8* src;
>-  const uint8* src_uv;
>+  const uint8_t* src;
>+  const uint8_t* src_uv;
>   const int abs_src_height = (src_height < 0) ? -src_height : src_height;
>   // TODO(nisse): Why allow crop_height < 0?
>   const int abs_crop_height = (crop_height < 0) ? -crop_height : crop_height;
>@@ -52,132 +52,143 @@ int ConvertToI420(const uint8* sample,
>   LIBYUV_BOOL need_buf =
>       (rotation && format != FOURCC_I420 && format != FOURCC_NV12 &&
>        format != FOURCC_NV21 && format != FOURCC_YV12) ||
>-      y == sample;
>-  uint8* tmp_y = y;
>-  uint8* tmp_u = u;
>-  uint8* tmp_v = v;
>-  int tmp_y_stride = y_stride;
>-  int tmp_u_stride = u_stride;
>-  int tmp_v_stride = v_stride;
>-  uint8* rotate_buffer = NULL;
>+      dst_y == sample;
>+  uint8_t* tmp_y = dst_y;
>+  uint8_t* tmp_u = dst_u;
>+  uint8_t* tmp_v = dst_v;
>+  int tmp_y_stride = dst_stride_y;
>+  int tmp_u_stride = dst_stride_u;
>+  int tmp_v_stride = dst_stride_v;
>+  uint8_t* rotate_buffer = NULL;
>   const int inv_crop_height =
>       (src_height < 0) ? -abs_crop_height : abs_crop_height;
> 
>-  if (!y || !u || !v || !sample || src_width <= 0 || crop_width <= 0 ||
>-      src_height == 0 || crop_height == 0) {
>+  if (!dst_y || !dst_u || !dst_v || !sample || src_width <= 0 ||
>+      crop_width <= 0 || src_height == 0 || crop_height == 0) {
>     return -1;
>   }
> 
>   // One pass rotation is available for some formats. For the rest, convert
>   // to I420 (with optional vertical flipping) into a temporary I420 buffer,
>   // and then rotate the I420 to the final destination buffer.
>-  // For in-place conversion, if destination y is same as source sample,
>+  // For in-place conversion, if destination dst_y is same as source sample,
>   // also enable temporary buffer.
>   if (need_buf) {
>     int y_size = crop_width * abs_crop_height;
>     int uv_size = ((crop_width + 1) / 2) * ((abs_crop_height + 1) / 2);
>-    rotate_buffer = (uint8*)malloc(y_size + uv_size * 2); /* NOLINT */
>+    rotate_buffer = (uint8_t*)malloc(y_size + uv_size * 2); /* NOLINT */
>     if (!rotate_buffer) {
>       return 1;  // Out of memory runtime error.
>     }
>-    y = rotate_buffer;
>-    u = y + y_size;
>-    v = u + uv_size;
>-    y_stride = crop_width;
>-    u_stride = v_stride = ((crop_width + 1) / 2);
>+    dst_y = rotate_buffer;
>+    dst_u = dst_y + y_size;
>+    dst_v = dst_u + uv_size;
>+    dst_stride_y = crop_width;
>+    dst_stride_u = dst_stride_v = ((crop_width + 1) / 2);
>   }
> 
>   switch (format) {
>     // Single plane formats
>     case FOURCC_YUY2:
>       src = sample + (aligned_src_width * crop_y + crop_x) * 2;
>-      r = YUY2ToI420(src, aligned_src_width * 2, y, y_stride, u, u_stride, v,
>-                     v_stride, crop_width, inv_crop_height);
>+      r = YUY2ToI420(src, aligned_src_width * 2, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_UYVY:
>       src = sample + (aligned_src_width * crop_y + crop_x) * 2;
>-      r = UYVYToI420(src, aligned_src_width * 2, y, y_stride, u, u_stride, v,
>-                     v_stride, crop_width, inv_crop_height);
>+      r = UYVYToI420(src, aligned_src_width * 2, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_RGBP:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = RGB565ToI420(src, src_width * 2, y, y_stride, u, u_stride, v,
>-                       v_stride, crop_width, inv_crop_height);
>+      r = RGB565ToI420(src, src_width * 2, dst_y, dst_stride_y, dst_u,
>+                       dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                       inv_crop_height);
>       break;
>     case FOURCC_RGBO:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = ARGB1555ToI420(src, src_width * 2, y, y_stride, u, u_stride, v,
>-                         v_stride, crop_width, inv_crop_height);
>+      r = ARGB1555ToI420(src, src_width * 2, dst_y, dst_stride_y, dst_u,
>+                         dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                         inv_crop_height);
>       break;
>     case FOURCC_R444:
>       src = sample + (src_width * crop_y + crop_x) * 2;
>-      r = ARGB4444ToI420(src, src_width * 2, y, y_stride, u, u_stride, v,
>-                         v_stride, crop_width, inv_crop_height);
>+      r = ARGB4444ToI420(src, src_width * 2, dst_y, dst_stride_y, dst_u,
>+                         dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                         inv_crop_height);
>       break;
>     case FOURCC_24BG:
>       src = sample + (src_width * crop_y + crop_x) * 3;
>-      r = RGB24ToI420(src, src_width * 3, y, y_stride, u, u_stride, v, v_stride,
>-                      crop_width, inv_crop_height);
>+      r = RGB24ToI420(src, src_width * 3, dst_y, dst_stride_y, dst_u,
>+                      dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                      inv_crop_height);
>       break;
>     case FOURCC_RAW:
>       src = sample + (src_width * crop_y + crop_x) * 3;
>-      r = RAWToI420(src, src_width * 3, y, y_stride, u, u_stride, v, v_stride,
>-                    crop_width, inv_crop_height);
>+      r = RAWToI420(src, src_width * 3, dst_y, dst_stride_y, dst_u,
>+                    dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                    inv_crop_height);
>       break;
>     case FOURCC_ARGB:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = ARGBToI420(src, src_width * 4, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = ARGBToI420(src, src_width * 4, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_BGRA:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = BGRAToI420(src, src_width * 4, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = BGRAToI420(src, src_width * 4, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_ABGR:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = ABGRToI420(src, src_width * 4, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = ABGRToI420(src, src_width * 4, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_RGBA:
>       src = sample + (src_width * crop_y + crop_x) * 4;
>-      r = RGBAToI420(src, src_width * 4, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = RGBAToI420(src, src_width * 4, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, crop_width,
>+                     inv_crop_height);
>       break;
>     case FOURCC_I400:
>       src = sample + src_width * crop_y + crop_x;
>-      r = I400ToI420(src, src_width, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = I400ToI420(src, src_width, dst_y, dst_stride_y, dst_u, dst_stride_u,
>+                     dst_v, dst_stride_v, crop_width, inv_crop_height);
>       break;
>     // Biplanar formats
>     case FOURCC_NV12:
>       src = sample + (src_width * crop_y + crop_x);
>       src_uv = sample + (src_width * src_height) +
>                ((crop_y / 2) * aligned_src_width) + ((crop_x / 2) * 2);
>-      r = NV12ToI420Rotate(src, src_width, src_uv, aligned_src_width, y,
>-                           y_stride, u, u_stride, v, v_stride, crop_width,
>-                           inv_crop_height, rotation);
>+      r = NV12ToI420Rotate(src, src_width, src_uv, aligned_src_width, dst_y,
>+                           dst_stride_y, dst_u, dst_stride_u, dst_v,
>+                           dst_stride_v, crop_width, inv_crop_height, rotation);
>       break;
>     case FOURCC_NV21:
>       src = sample + (src_width * crop_y + crop_x);
>       src_uv = sample + (src_width * src_height) +
>                ((crop_y / 2) * aligned_src_width) + ((crop_x / 2) * 2);
>-      // Call NV12 but with u and v parameters swapped.
>-      r = NV12ToI420Rotate(src, src_width, src_uv, aligned_src_width, y,
>-                           y_stride, v, v_stride, u, u_stride, crop_width,
>-                           inv_crop_height, rotation);
>+      // Call NV12 but with dst_u and dst_v parameters swapped.
>+      r = NV12ToI420Rotate(src, src_width, src_uv, aligned_src_width, dst_y,
>+                           dst_stride_y, dst_v, dst_stride_v, dst_u,
>+                           dst_stride_u, crop_width, inv_crop_height, rotation);
>       break;
>     case FOURCC_M420:
>       src = sample + (src_width * crop_y) * 12 / 8 + crop_x;
>-      r = M420ToI420(src, src_width, y, y_stride, u, u_stride, v, v_stride,
>-                     crop_width, inv_crop_height);
>+      r = M420ToI420(src, src_width, dst_y, dst_stride_y, dst_u, dst_stride_u,
>+                     dst_v, dst_stride_v, crop_width, inv_crop_height);
>       break;
>     // Triplanar formats
>     case FOURCC_I420:
>     case FOURCC_YV12: {
>-      const uint8* src_y = sample + (src_width * crop_y + crop_x);
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + (src_width * crop_y + crop_x);
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       int halfwidth = (src_width + 1) / 2;
>       int halfheight = (abs_src_height + 1) / 2;
>       if (format == FOURCC_YV12) {
>@@ -191,16 +202,16 @@ int ConvertToI420(const uint8* sample,
>         src_v = sample + src_width * abs_src_height +
>                 halfwidth * (halfheight + crop_y / 2) + crop_x / 2;
>       }
>-      r = I420Rotate(src_y, src_width, src_u, halfwidth, src_v, halfwidth, y,
>-                     y_stride, u, u_stride, v, v_stride, crop_width,
>-                     inv_crop_height, rotation);
>+      r = I420Rotate(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
>+                     dst_y, dst_stride_y, dst_u, dst_stride_u, dst_v,
>+                     dst_stride_v, crop_width, inv_crop_height, rotation);
>       break;
>     }
>     case FOURCC_I422:
>     case FOURCC_YV16: {
>-      const uint8* src_y = sample + src_width * crop_y + crop_x;
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + src_width * crop_y + crop_x;
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       int halfwidth = (src_width + 1) / 2;
>       if (format == FOURCC_YV16) {
>         src_v = sample + src_width * abs_src_height + halfwidth * crop_y +
>@@ -213,16 +224,16 @@ int ConvertToI420(const uint8* sample,
>         src_v = sample + src_width * abs_src_height +
>                 halfwidth * (abs_src_height + crop_y) + crop_x / 2;
>       }
>-      r = I422ToI420(src_y, src_width, src_u, halfwidth, src_v, halfwidth, y,
>-                     y_stride, u, u_stride, v, v_stride, crop_width,
>-                     inv_crop_height);
>+      r = I422ToI420(src_y, src_width, src_u, halfwidth, src_v, halfwidth,
>+                     dst_y, dst_stride_y, dst_u, dst_stride_u, dst_v,
>+                     dst_stride_v, crop_width, inv_crop_height);
>       break;
>     }
>     case FOURCC_I444:
>     case FOURCC_YV24: {
>-      const uint8* src_y = sample + src_width * crop_y + crop_x;
>-      const uint8* src_u;
>-      const uint8* src_v;
>+      const uint8_t* src_y = sample + src_width * crop_y + crop_x;
>+      const uint8_t* src_u;
>+      const uint8_t* src_v;
>       if (format == FOURCC_YV24) {
>         src_v = sample + src_width * (abs_src_height + crop_y) + crop_x;
>         src_u = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
>@@ -230,15 +241,16 @@ int ConvertToI420(const uint8* sample,
>         src_u = sample + src_width * (abs_src_height + crop_y) + crop_x;
>         src_v = sample + src_width * (abs_src_height * 2 + crop_y) + crop_x;
>       }
>-      r = I444ToI420(src_y, src_width, src_u, src_width, src_v, src_width, y,
>-                     y_stride, u, u_stride, v, v_stride, crop_width,
>-                     inv_crop_height);
>+      r = I444ToI420(src_y, src_width, src_u, src_width, src_v, src_width,
>+                     dst_y, dst_stride_y, dst_u, dst_stride_u, dst_v,
>+                     dst_stride_v, crop_width, inv_crop_height);
>       break;
>     }
> #ifdef HAVE_JPEG
>     case FOURCC_MJPG:
>-      r = MJPGToI420(sample, sample_size, y, y_stride, u, u_stride, v, v_stride,
>-                     src_width, abs_src_height, crop_width, inv_crop_height);
>+      r = MJPGToI420(sample, sample_size, dst_y, dst_stride_y, dst_u,
>+                     dst_stride_u, dst_v, dst_stride_v, src_width,
>+                     abs_src_height, crop_width, inv_crop_height);
>       break;
> #endif
>     default:
>@@ -247,9 +259,10 @@ int ConvertToI420(const uint8* sample,
> 
>   if (need_buf) {
>     if (!r) {
>-      r = I420Rotate(y, y_stride, u, u_stride, v, v_stride, tmp_y, tmp_y_stride,
>-                     tmp_u, tmp_u_stride, tmp_v, tmp_v_stride, crop_width,
>-                     abs_crop_height, rotation);
>+      r = I420Rotate(dst_y, dst_stride_y, dst_u, dst_stride_u, dst_v,
>+                     dst_stride_v, tmp_y, tmp_y_stride, tmp_u, tmp_u_stride,
>+                     tmp_v, tmp_v_stride, crop_width, abs_crop_height,
>+                     rotation);
>     }
>     free(rotate_buffer);
>   }
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/cpu_id.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/cpu_id.cc
>index 344f3c06a2b75b10aa141fc5452c29d39c0da747..446aad12078b4e4a963ff58335efb8018c32c713 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/cpu_id.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/cpu_id.cc
>@@ -27,8 +27,6 @@
> #include <stdio.h>
> #include <string.h>
> 
>-#include "libyuv/basic_types.h"  // For CPU_X86
>-
> #ifdef __cplusplus
> namespace libyuv {
> extern "C" {
>@@ -179,7 +177,7 @@ LIBYUV_API SAFEBUFFERS int MipsCpuCaps(const char* cpuinfo_name,
>     if (strcmp(ase, " msa") == 0) {
>       return kCpuHasMSA;
>     }
>-    return kCpuHasDSPR2;
>+    return 0;
>   }
>   while (fgets(cpuinfo_line, sizeof(cpuinfo_line) - 1, f)) {
>     if (memcmp(cpuinfo_line, "ASEs implemented", 16) == 0) {
>@@ -189,7 +187,7 @@ LIBYUV_API SAFEBUFFERS int MipsCpuCaps(const char* cpuinfo_name,
>         if (strcmp(ase, " msa") == 0) {
>           return kCpuHasMSA;
>         }
>-        return kCpuHasDSPR2;
>+        return 0;
>       }
>     }
>   }
>@@ -218,7 +216,9 @@ static LIBYUV_BOOL TestEnv(const char*) {
> 
> static SAFEBUFFERS int GetCpuFlags(void) {
>   int cpu_info = 0;
>-#if !defined(__pnacl__) && !defined(__CLR_VER) && defined(CPU_X86)
>+#if !defined(__pnacl__) && !defined(__CLR_VER) &&                   \
>+    (defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
>+     defined(_M_IX86))
>   int cpu_info0[4] = {0, 0, 0, 0};
>   int cpu_info1[4] = {0, 0, 0, 0};
>   int cpu_info7[4] = {0, 0, 0, 0};
>@@ -290,16 +290,10 @@ static SAFEBUFFERS int GetCpuFlags(void) {
> 
> #endif
> #if defined(__mips__) && defined(__linux__)
>-#if defined(__mips_dspr2)
>-  cpu_info |= kCpuHasDSPR2;
>-#endif
> #if defined(__mips_msa)
>   cpu_info = MipsCpuCaps("/proc/cpuinfo", " msa");
> #endif
>   cpu_info |= kCpuHasMIPS;
>-  if (getenv("LIBYUV_DISABLE_DSPR2")) {
>-    cpu_info &= ~kCpuHasDSPR2;
>-  }
>   if (getenv("LIBYUV_DISABLE_MSA")) {
>     cpu_info &= ~kCpuHasMSA;
>   }
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_decoder.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_decoder.cc
>index b43c008bdd2dd11d0166b45e2124b8e3832fae37..eaf2530130b20b4114b1236a468abf50deb44d6a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_decoder.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_decoder.cc
>@@ -102,7 +102,7 @@ MJpegDecoder::~MJpegDecoder() {
>   DestroyOutputBuffers();
> }
> 
>-LIBYUV_BOOL MJpegDecoder::LoadFrame(const uint8* src, size_t src_len) {
>+LIBYUV_BOOL MJpegDecoder::LoadFrame(const uint8_t* src, size_t src_len) {
>   if (!ValidateJpeg(src, src_len)) {
>     return LIBYUV_FALSE;
>   }
>@@ -129,7 +129,7 @@ LIBYUV_BOOL MJpegDecoder::LoadFrame(const uint8* src, size_t src_len) {
>       if (scanlines_[i]) {
>         delete scanlines_[i];
>       }
>-      scanlines_[i] = new uint8*[scanlines_size];
>+      scanlines_[i] = new uint8_t*[scanlines_size];
>       scanlines_sizes_[i] = scanlines_size;
>     }
> 
>@@ -145,7 +145,7 @@ LIBYUV_BOOL MJpegDecoder::LoadFrame(const uint8* src, size_t src_len) {
>       if (databuf_[i]) {
>         delete databuf_[i];
>       }
>-      databuf_[i] = new uint8[databuf_size];
>+      databuf_[i] = new uint8_t[databuf_size];
>       databuf_strides_[i] = databuf_stride;
>     }
> 
>@@ -243,7 +243,7 @@ LIBYUV_BOOL MJpegDecoder::UnloadFrame() {
> }
> 
> // TODO(fbarchard): Allow rectangle to be specified: x, y, width, height.
>-LIBYUV_BOOL MJpegDecoder::DecodeToBuffers(uint8** planes,
>+LIBYUV_BOOL MJpegDecoder::DecodeToBuffers(uint8_t** planes,
>                                           int dst_width,
>                                           int dst_height) {
>   if (dst_width != GetWidth() || dst_height > GetHeight()) {
>@@ -469,9 +469,9 @@ void MJpegDecoder::AllocOutputBuffers(int num_outbufs) {
>     // it.
>     DestroyOutputBuffers();
> 
>-    scanlines_ = new uint8**[num_outbufs];
>+    scanlines_ = new uint8_t**[num_outbufs];
>     scanlines_sizes_ = new int[num_outbufs];
>-    databuf_ = new uint8*[num_outbufs];
>+    databuf_ = new uint8_t*[num_outbufs];
>     databuf_strides_ = new int[num_outbufs];
> 
>     for (int i = 0; i < num_outbufs; ++i) {
>@@ -527,9 +527,9 @@ LIBYUV_BOOL MJpegDecoder::FinishDecode() {
>   return LIBYUV_TRUE;
> }
> 
>-void MJpegDecoder::SetScanlinePointers(uint8** data) {
>+void MJpegDecoder::SetScanlinePointers(uint8_t** data) {
>   for (int i = 0; i < num_outbufs_; ++i) {
>-    uint8* data_i = data[i];
>+    uint8_t* data_i = data[i];
>     for (int j = 0; j < scanlines_sizes_[i]; ++j) {
>       scanlines_[i][j] = data_i;
>       data_i += GetComponentStride(i);
>@@ -552,13 +552,13 @@ JpegSubsamplingType MJpegDecoder::JpegSubsamplingTypeHelper(
>     if (subsample_x[0] == 1 && subsample_y[0] == 1 && subsample_x[1] == 2 &&
>         subsample_y[1] == 2 && subsample_x[2] == 2 && subsample_y[2] == 2) {
>       return kJpegYuv420;
>-    } else if (subsample_x[0] == 1 && subsample_y[0] == 1 &&
>-               subsample_x[1] == 2 && subsample_y[1] == 1 &&
>-               subsample_x[2] == 2 && subsample_y[2] == 1) {
>+    }
>+    if (subsample_x[0] == 1 && subsample_y[0] == 1 && subsample_x[1] == 2 &&
>+        subsample_y[1] == 1 && subsample_x[2] == 2 && subsample_y[2] == 1) {
>       return kJpegYuv422;
>-    } else if (subsample_x[0] == 1 && subsample_y[0] == 1 &&
>-               subsample_x[1] == 1 && subsample_y[1] == 1 &&
>-               subsample_x[2] == 1 && subsample_y[2] == 1) {
>+    }
>+    if (subsample_x[0] == 1 && subsample_y[0] == 1 && subsample_x[1] == 1 &&
>+        subsample_y[1] == 1 && subsample_x[2] == 1 && subsample_y[2] == 1) {
>       return kJpegYuv444;
>     }
>   } else if (number_of_components == 1) {  // Grey-scale images.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_validate.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_validate.cc
>index bd760425359cf1e90414ebb02e58850bb26dbd96..80c2cc0cb9bed5f4ce635ba71311989334a4a05b 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_validate.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/mjpeg_validate.cc
>@@ -18,13 +18,13 @@ extern "C" {
> #endif
> 
> // Helper function to scan for EOI marker (0xff 0xd9).
>-static LIBYUV_BOOL ScanEOI(const uint8* sample, size_t sample_size) {
>+static LIBYUV_BOOL ScanEOI(const uint8_t* sample, size_t sample_size) {
>   if (sample_size >= 2) {
>-    const uint8* end = sample + sample_size - 1;
>-    const uint8* it = sample;
>+    const uint8_t* end = sample + sample_size - 1;
>+    const uint8_t* it = sample;
>     while (it < end) {
>       // TODO(fbarchard): scan for 0xd9 instead.
>-      it = (const uint8*)(memchr(it, 0xff, end - it));
>+      it = (const uint8_t*)(memchr(it, 0xff, end - it));
>       if (it == NULL) {
>         break;
>       }
>@@ -39,7 +39,7 @@ static LIBYUV_BOOL ScanEOI(const uint8* sample, size_t sample_size) {
> }
> 
> // Helper function to validate the jpeg appears intact.
>-LIBYUV_BOOL ValidateJpeg(const uint8* sample, size_t sample_size) {
>+LIBYUV_BOOL ValidateJpeg(const uint8_t* sample, size_t sample_size) {
>   // Maximum size that ValidateJpeg will consider valid.
>   const size_t kMaxJpegSize = 0x7fffffffull;
>   const size_t kBackSearchSize = 1024;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/planar_functions.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/planar_functions.cc
>index dd311d1f08e28ce5606c5bd64cb3f047c8072d2d..5eae3f763a7290aa83b0031aa6725bbb367a6f18 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/planar_functions.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/planar_functions.cc
>@@ -26,14 +26,14 @@ extern "C" {
> 
> // Copy a plane of data
> LIBYUV_API
>-void CopyPlane(const uint8* src_y,
>+void CopyPlane(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>   int y;
>-  void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
>+  void (*CopyRow)(const uint8_t* src, uint8_t* dst, int width) = CopyRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>     height = -height;
>@@ -50,6 +50,7 @@ void CopyPlane(const uint8* src_y,
>   if (src_y == dst_y && src_stride_y == dst_stride_y) {
>     return;
>   }
>+
> #if defined(HAS_COPYROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     CopyRow = IS_ALIGNED(width, 32) ? CopyRow_SSE2 : CopyRow_Any_SSE2;
>@@ -70,11 +71,6 @@ void CopyPlane(const uint8* src_y,
>     CopyRow = IS_ALIGNED(width, 32) ? CopyRow_NEON : CopyRow_Any_NEON;
>   }
> #endif
>-#if defined(HAS_COPYROW_MIPS)
>-  if (TestCpuFlag(kCpuHasMIPS)) {
>-    CopyRow = CopyRow_MIPS;
>-  }
>-#endif
> 
>   // Copy plane
>   for (y = 0; y < height; ++y) {
>@@ -87,14 +83,14 @@ void CopyPlane(const uint8* src_y,
> // TODO(fbarchard): Consider support for negative height.
> // TODO(fbarchard): Consider stride measured in bytes.
> LIBYUV_API
>-void CopyPlane_16(const uint16* src_y,
>+void CopyPlane_16(const uint16_t* src_y,
>                   int src_stride_y,
>-                  uint16* dst_y,
>+                  uint16_t* dst_y,
>                   int dst_stride_y,
>                   int width,
>                   int height) {
>   int y;
>-  void (*CopyRow)(const uint16* src, uint16* dst, int width) = CopyRow_16_C;
>+  void (*CopyRow)(const uint16_t* src, uint16_t* dst, int width) = CopyRow_16_C;
>   // Coalesce rows.
>   if (src_stride_y == width && dst_stride_y == width) {
>     width *= height;
>@@ -116,11 +112,6 @@ void CopyPlane_16(const uint16* src_y,
>     CopyRow = CopyRow_16_NEON;
>   }
> #endif
>-#if defined(HAS_COPYROW_16_MIPS)
>-  if (TestCpuFlag(kCpuHasMIPS)) {
>-    CopyRow = CopyRow_16_MIPS;
>-  }
>-#endif
> 
>   // Copy plane
>   for (y = 0; y < height; ++y) {
>@@ -130,19 +121,119 @@ void CopyPlane_16(const uint16* src_y,
>   }
> }
> 
>+// Convert a plane of 16 bit data to 8 bit
>+LIBYUV_API
>+void Convert16To8Plane(const uint16_t* src_y,
>+                       int src_stride_y,
>+                       uint8_t* dst_y,
>+                       int dst_stride_y,
>+                       int scale,  // 16384 for 10 bits
>+                       int width,
>+                       int height) {
>+  int y;
>+  void (*Convert16To8Row)(const uint16_t* src_y, uint8_t* dst_y, int scale,
>+                          int width) = Convert16To8Row_C;
>+
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_y = dst_y + (height - 1) * dst_stride_y;
>+    dst_stride_y = -dst_stride_y;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_y == width && dst_stride_y == width) {
>+    width *= height;
>+    height = 1;
>+    src_stride_y = dst_stride_y = 0;
>+  }
>+#if defined(HAS_CONVERT16TO8ROW_SSSE3)
>+  if (TestCpuFlag(kCpuHasSSSE3)) {
>+    Convert16To8Row = Convert16To8Row_Any_SSSE3;
>+    if (IS_ALIGNED(width, 16)) {
>+      Convert16To8Row = Convert16To8Row_SSSE3;
>+    }
>+  }
>+#endif
>+#if defined(HAS_CONVERT16TO8ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    Convert16To8Row = Convert16To8Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      Convert16To8Row = Convert16To8Row_AVX2;
>+    }
>+  }
>+#endif
>+
>+  // Convert plane
>+  for (y = 0; y < height; ++y) {
>+    Convert16To8Row(src_y, dst_y, scale, width);
>+    src_y += src_stride_y;
>+    dst_y += dst_stride_y;
>+  }
>+}
>+
>+// Convert a plane of 8 bit data to 16 bit
>+LIBYUV_API
>+void Convert8To16Plane(const uint8_t* src_y,
>+                       int src_stride_y,
>+                       uint16_t* dst_y,
>+                       int dst_stride_y,
>+                       int scale,  // 16384 for 10 bits
>+                       int width,
>+                       int height) {
>+  int y;
>+  void (*Convert8To16Row)(const uint8_t* src_y, uint16_t* dst_y, int scale,
>+                          int width) = Convert8To16Row_C;
>+
>+  // Negative height means invert the image.
>+  if (height < 0) {
>+    height = -height;
>+    dst_y = dst_y + (height - 1) * dst_stride_y;
>+    dst_stride_y = -dst_stride_y;
>+  }
>+  // Coalesce rows.
>+  if (src_stride_y == width && dst_stride_y == width) {
>+    width *= height;
>+    height = 1;
>+    src_stride_y = dst_stride_y = 0;
>+  }
>+#if defined(HAS_CONVERT8TO16ROW_SSE2)
>+  if (TestCpuFlag(kCpuHasSSE2)) {
>+    Convert8To16Row = Convert8To16Row_Any_SSE2;
>+    if (IS_ALIGNED(width, 16)) {
>+      Convert8To16Row = Convert8To16Row_SSE2;
>+    }
>+  }
>+#endif
>+#if defined(HAS_CONVERT8TO16ROW_AVX2)
>+  if (TestCpuFlag(kCpuHasAVX2)) {
>+    Convert8To16Row = Convert8To16Row_Any_AVX2;
>+    if (IS_ALIGNED(width, 32)) {
>+      Convert8To16Row = Convert8To16Row_AVX2;
>+    }
>+  }
>+#endif
>+
>+  // Convert plane
>+  for (y = 0; y < height; ++y) {
>+    Convert8To16Row(src_y, dst_y, scale, width);
>+    src_y += src_stride_y;
>+    dst_y += dst_stride_y;
>+  }
>+}
>+
> // Copy I422.
> LIBYUV_API
>-int I422Copy(const uint8* src_y,
>+int I422Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height) {
>@@ -171,17 +262,17 @@ int I422Copy(const uint8* src_y,
> 
> // Copy I444.
> LIBYUV_API
>-int I444Copy(const uint8* src_y,
>+int I444Copy(const uint8_t* src_y,
>              int src_stride_y,
>-             const uint8* src_u,
>+             const uint8_t* src_u,
>              int src_stride_u,
>-             const uint8* src_v,
>+             const uint8_t* src_v,
>              int src_stride_v,
>-             uint8* dst_y,
>+             uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int width,
>              int height) {
>@@ -209,9 +300,9 @@ int I444Copy(const uint8* src_y,
> 
> // Copy I400.
> LIBYUV_API
>-int I400ToI400(const uint8* src_y,
>+int I400ToI400(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>@@ -230,13 +321,13 @@ int I400ToI400(const uint8* src_y,
> 
> // Convert I420 to I400.
> LIBYUV_API
>-int I420ToI400(const uint8* src_y,
>+int I420ToI400(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>@@ -261,16 +352,16 @@ int I420ToI400(const uint8* src_y,
> // Support function for NV12 etc UV channels.
> // Width and height are plane sizes (typically half pixel width).
> LIBYUV_API
>-void SplitUVPlane(const uint8* src_uv,
>+void SplitUVPlane(const uint8_t* src_uv,
>                   int src_stride_uv,
>-                  uint8* dst_u,
>+                  uint8_t* dst_u,
>                   int dst_stride_u,
>-                  uint8* dst_v,
>+                  uint8_t* dst_v,
>                   int dst_stride_v,
>                   int width,
>                   int height) {
>   int y;
>-  void (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
>+  void (*SplitUVRow)(const uint8_t* src_uv, uint8_t* dst_u, uint8_t* dst_v,
>                      int width) = SplitUVRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>@@ -311,16 +402,6 @@ void SplitUVPlane(const uint8* src_uv,
>     }
>   }
> #endif
>-#if defined(HAS_SPLITUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(dst_u, 4) &&
>-      IS_ALIGNED(dst_stride_u, 4) && IS_ALIGNED(dst_v, 4) &&
>-      IS_ALIGNED(dst_stride_v, 4)) {
>-    SplitUVRow = SplitUVRow_Any_DSPR2;
>-    if (IS_ALIGNED(width, 16)) {
>-      SplitUVRow = SplitUVRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_SPLITUVROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     SplitUVRow = SplitUVRow_Any_MSA;
>@@ -340,17 +421,17 @@ void SplitUVPlane(const uint8* src_uv,
> }
> 
> LIBYUV_API
>-void MergeUVPlane(const uint8* src_u,
>+void MergeUVPlane(const uint8_t* src_u,
>                   int src_stride_u,
>-                  const uint8* src_v,
>+                  const uint8_t* src_v,
>                   int src_stride_v,
>-                  uint8* dst_uv,
>+                  uint8_t* dst_uv,
>                   int dst_stride_uv,
>                   int width,
>                   int height) {
>   int y;
>-  void (*MergeUVRow)(const uint8* src_u, const uint8* src_v, uint8* dst_uv,
>-                     int width) = MergeUVRow_C;
>+  void (*MergeUVRow)(const uint8_t* src_u, const uint8_t* src_v,
>+                     uint8_t* dst_uv, int width) = MergeUVRow_C;
>   // Coalesce rows.
>   // Negative height means invert the image.
>   if (height < 0) {
>@@ -410,19 +491,19 @@ void MergeUVPlane(const uint8* src_u,
> // Support function for NV12 etc RGB channels.
> // Width and height are plane sizes (typically half pixel width).
> LIBYUV_API
>-void SplitRGBPlane(const uint8* src_rgb,
>+void SplitRGBPlane(const uint8_t* src_rgb,
>                    int src_stride_rgb,
>-                   uint8* dst_r,
>+                   uint8_t* dst_r,
>                    int dst_stride_r,
>-                   uint8* dst_g,
>+                   uint8_t* dst_g,
>                    int dst_stride_g,
>-                   uint8* dst_b,
>+                   uint8_t* dst_b,
>                    int dst_stride_b,
>                    int width,
>                    int height) {
>   int y;
>-  void (*SplitRGBRow)(const uint8* src_rgb, uint8* dst_r, uint8* dst_g,
>-                      uint8* dst_b, int width) = SplitRGBRow_C;
>+  void (*SplitRGBRow)(const uint8_t* src_rgb, uint8_t* dst_r, uint8_t* dst_g,
>+                      uint8_t* dst_b, int width) = SplitRGBRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>     height = -height;
>@@ -468,19 +549,19 @@ void SplitRGBPlane(const uint8* src_rgb,
> }
> 
> LIBYUV_API
>-void MergeRGBPlane(const uint8* src_r,
>+void MergeRGBPlane(const uint8_t* src_r,
>                    int src_stride_r,
>-                   const uint8* src_g,
>+                   const uint8_t* src_g,
>                    int src_stride_g,
>-                   const uint8* src_b,
>+                   const uint8_t* src_b,
>                    int src_stride_b,
>-                   uint8* dst_rgb,
>+                   uint8_t* dst_rgb,
>                    int dst_stride_rgb,
>                    int width,
>                    int height) {
>   int y;
>-  void (*MergeRGBRow)(const uint8* src_r, const uint8* src_g,
>-                      const uint8* src_b, uint8* dst_rgb, int width) =
>+  void (*MergeRGBRow)(const uint8_t* src_r, const uint8_t* src_g,
>+                      const uint8_t* src_b, uint8_t* dst_rgb, int width) =
>       MergeRGBRow_C;
>   // Coalesce rows.
>   // Negative height means invert the image.
>@@ -524,14 +605,14 @@ void MergeRGBPlane(const uint8* src_r,
> }
> 
> // Mirror a plane of data.
>-void MirrorPlane(const uint8* src_y,
>+void MirrorPlane(const uint8_t* src_y,
>                  int src_stride_y,
>-                 uint8* dst_y,
>+                 uint8_t* dst_y,
>                  int dst_stride_y,
>                  int width,
>                  int height) {
>   int y;
>-  void (*MirrorRow)(const uint8* src, uint8* dst, int width) = MirrorRow_C;
>+  void (*MirrorRow)(const uint8_t* src, uint8_t* dst, int width) = MirrorRow_C;
>   // Negative height means invert the image.
>   if (height < 0) {
>     height = -height;
>@@ -562,14 +643,6 @@ void MirrorPlane(const uint8* src_y,
>     }
>   }
> #endif
>-// TODO(fbarchard): Mirror on mips handle unaligned memory.
>-#if defined(HAS_MIRRORROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_y, 4) &&
>-      IS_ALIGNED(src_stride_y, 4) && IS_ALIGNED(dst_y, 4) &&
>-      IS_ALIGNED(dst_stride_y, 4)) {
>-    MirrorRow = MirrorRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_MIRRORROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     MirrorRow = MirrorRow_Any_MSA;
>@@ -589,20 +662,20 @@ void MirrorPlane(const uint8* src_y,
> 
> // Convert YUY2 to I422.
> LIBYUV_API
>-int YUY2ToI422(const uint8* src_yuy2,
>+int YUY2ToI422(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*YUY2ToUV422Row)(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v,
>-                         int width) = YUY2ToUV422Row_C;
>-  void (*YUY2ToYRow)(const uint8* src_yuy2, uint8* dst_y, int width) =
>+  void (*YUY2ToUV422Row)(const uint8_t* src_yuy2, uint8_t* dst_u,
>+                         uint8_t* dst_v, int width) = YUY2ToUV422Row_C;
>+  void (*YUY2ToYRow)(const uint8_t* src_yuy2, uint8_t* dst_y, int width) =
>       YUY2ToYRow_C;
>   if (!src_yuy2 || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -675,20 +748,20 @@ int YUY2ToI422(const uint8* src_yuy2,
> 
> // Convert UYVY to I422.
> LIBYUV_API
>-int UYVYToI422(const uint8* src_uyvy,
>+int UYVYToI422(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>   int y;
>-  void (*UYVYToUV422Row)(const uint8* src_uyvy, uint8* dst_u, uint8* dst_v,
>-                         int width) = UYVYToUV422Row_C;
>-  void (*UYVYToYRow)(const uint8* src_uyvy, uint8* dst_y, int width) =
>+  void (*UYVYToUV422Row)(const uint8_t* src_uyvy, uint8_t* dst_u,
>+                         uint8_t* dst_v, int width) = UYVYToUV422Row_C;
>+  void (*UYVYToYRow)(const uint8_t* src_uyvy, uint8_t* dst_y, int width) =
>       UYVYToYRow_C;
>   if (!src_uyvy || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -761,14 +834,14 @@ int UYVYToI422(const uint8* src_uyvy,
> 
> // Convert YUY2 to Y.
> LIBYUV_API
>-int YUY2ToY(const uint8* src_yuy2,
>+int YUY2ToY(const uint8_t* src_yuy2,
>             int src_stride_yuy2,
>-            uint8* dst_y,
>+            uint8_t* dst_y,
>             int dst_stride_y,
>             int width,
>             int height) {
>   int y;
>-  void (*YUY2ToYRow)(const uint8* src_yuy2, uint8* dst_y, int width) =
>+  void (*YUY2ToYRow)(const uint8_t* src_yuy2, uint8_t* dst_y, int width) =
>       YUY2ToYRow_C;
>   if (!src_yuy2 || !dst_y || width <= 0 || height == 0) {
>     return -1;
>@@ -828,9 +901,9 @@ int YUY2ToY(const uint8* src_yuy2,
> 
> // Mirror I400 with optional flipping
> LIBYUV_API
>-int I400Mirror(const uint8* src_y,
>+int I400Mirror(const uint8_t* src_y,
>                int src_stride_y,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>@@ -850,17 +923,17 @@ int I400Mirror(const uint8* src_y,
> 
> // Mirror I420 with optional flipping
> LIBYUV_API
>-int I420Mirror(const uint8* src_y,
>+int I420Mirror(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height) {
>@@ -892,14 +965,14 @@ int I420Mirror(const uint8* src_y,
> 
> // ARGB mirror.
> LIBYUV_API
>-int ARGBMirror(const uint8* src_argb,
>+int ARGBMirror(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBMirrorRow)(const uint8* src, uint8* dst, int width) =
>+  void (*ARGBMirrorRow)(const uint8_t* src, uint8_t* dst, int width) =
>       ARGBMirrorRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -957,8 +1030,8 @@ int ARGBMirror(const uint8* src_argb,
> // the same blend function for all pixels if possible.
> LIBYUV_API
> ARGBBlendRow GetARGBBlend() {
>-  void (*ARGBBlendRow)(const uint8* src_argb, const uint8* src_argb1,
>-                       uint8* dst_argb, int width) = ARGBBlendRow_C;
>+  void (*ARGBBlendRow)(const uint8_t* src_argb, const uint8_t* src_argb1,
>+                       uint8_t* dst_argb, int width) = ARGBBlendRow_C;
> #if defined(HAS_ARGBBLENDROW_SSSE3)
>   if (TestCpuFlag(kCpuHasSSSE3)) {
>     ARGBBlendRow = ARGBBlendRow_SSSE3;
>@@ -980,17 +1053,17 @@ ARGBBlendRow GetARGBBlend() {
> 
> // Alpha Blend 2 ARGB images and store to destination.
> LIBYUV_API
>-int ARGBBlend(const uint8* src_argb0,
>+int ARGBBlend(const uint8_t* src_argb0,
>               int src_stride_argb0,
>-              const uint8* src_argb1,
>+              const uint8_t* src_argb1,
>               int src_stride_argb1,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height) {
>   int y;
>-  void (*ARGBBlendRow)(const uint8* src_argb, const uint8* src_argb1,
>-                       uint8* dst_argb, int width) = GetARGBBlend();
>+  void (*ARGBBlendRow)(const uint8_t* src_argb, const uint8_t* src_argb1,
>+                       uint8_t* dst_argb, int width) = GetARGBBlend();
>   if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1019,19 +1092,19 @@ int ARGBBlend(const uint8* src_argb0,
> 
> // Alpha Blend plane and store to destination.
> LIBYUV_API
>-int BlendPlane(const uint8* src_y0,
>+int BlendPlane(const uint8_t* src_y0,
>                int src_stride_y0,
>-               const uint8* src_y1,
>+               const uint8_t* src_y1,
>                int src_stride_y1,
>-               const uint8* alpha,
>+               const uint8_t* alpha,
>                int alpha_stride,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>                int width,
>                int height) {
>   int y;
>-  void (*BlendPlaneRow)(const uint8* src0, const uint8* src1,
>-                        const uint8* alpha, uint8* dst, int width) =
>+  void (*BlendPlaneRow)(const uint8_t* src0, const uint8_t* src1,
>+                        const uint8_t* alpha, uint8_t* dst, int width) =
>       BlendPlaneRow_C;
>   if (!src_y0 || !src_y1 || !alpha || !dst_y || width <= 0 || height == 0) {
>     return -1;
>@@ -1081,36 +1154,36 @@ int BlendPlane(const uint8* src_y0,
> #define MAXTWIDTH 2048
> // Alpha Blend YUV images and store to destination.
> LIBYUV_API
>-int I420Blend(const uint8* src_y0,
>+int I420Blend(const uint8_t* src_y0,
>               int src_stride_y0,
>-              const uint8* src_u0,
>+              const uint8_t* src_u0,
>               int src_stride_u0,
>-              const uint8* src_v0,
>+              const uint8_t* src_v0,
>               int src_stride_v0,
>-              const uint8* src_y1,
>+              const uint8_t* src_y1,
>               int src_stride_y1,
>-              const uint8* src_u1,
>+              const uint8_t* src_u1,
>               int src_stride_u1,
>-              const uint8* src_v1,
>+              const uint8_t* src_v1,
>               int src_stride_v1,
>-              const uint8* alpha,
>+              const uint8_t* alpha,
>               int alpha_stride,
>-              uint8* dst_y,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int width,
>               int height) {
>   int y;
>   // Half width/height for UV.
>   int halfwidth = (width + 1) >> 1;
>-  void (*BlendPlaneRow)(const uint8* src0, const uint8* src1,
>-                        const uint8* alpha, uint8* dst, int width) =
>+  void (*BlendPlaneRow)(const uint8_t* src0, const uint8_t* src1,
>+                        const uint8_t* alpha, uint8_t* dst, int width) =
>       BlendPlaneRow_C;
>-  void (*ScaleRowDown2)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                        uint8* dst_ptr, int dst_width) = ScaleRowDown2Box_C;
>+  void (*ScaleRowDown2)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                        uint8_t* dst_ptr, int dst_width) = ScaleRowDown2Box_C;
>   if (!src_y0 || !src_u0 || !src_v0 || !src_y1 || !src_u1 || !src_v1 ||
>       !alpha || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
>     return -1;
>@@ -1205,17 +1278,17 @@ int I420Blend(const uint8* src_y0,
> 
> // Multiply 2 ARGB images and store to destination.
> LIBYUV_API
>-int ARGBMultiply(const uint8* src_argb0,
>+int ARGBMultiply(const uint8_t* src_argb0,
>                  int src_stride_argb0,
>-                 const uint8* src_argb1,
>+                 const uint8_t* src_argb1,
>                  int src_stride_argb1,
>-                 uint8* dst_argb,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height) {
>   int y;
>-  void (*ARGBMultiplyRow)(const uint8* src0, const uint8* src1, uint8* dst,
>-                          int width) = ARGBMultiplyRow_C;
>+  void (*ARGBMultiplyRow)(const uint8_t* src0, const uint8_t* src1,
>+                          uint8_t* dst, int width) = ARGBMultiplyRow_C;
>   if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1277,16 +1350,16 @@ int ARGBMultiply(const uint8* src_argb0,
> 
> // Add 2 ARGB images and store to destination.
> LIBYUV_API
>-int ARGBAdd(const uint8* src_argb0,
>+int ARGBAdd(const uint8_t* src_argb0,
>             int src_stride_argb0,
>-            const uint8* src_argb1,
>+            const uint8_t* src_argb1,
>             int src_stride_argb1,
>-            uint8* dst_argb,
>+            uint8_t* dst_argb,
>             int dst_stride_argb,
>             int width,
>             int height) {
>   int y;
>-  void (*ARGBAddRow)(const uint8* src0, const uint8* src1, uint8* dst,
>+  void (*ARGBAddRow)(const uint8_t* src0, const uint8_t* src1, uint8_t* dst,
>                      int width) = ARGBAddRow_C;
>   if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1354,17 +1427,17 @@ int ARGBAdd(const uint8* src_argb0,
> 
> // Subtract 2 ARGB images and store to destination.
> LIBYUV_API
>-int ARGBSubtract(const uint8* src_argb0,
>+int ARGBSubtract(const uint8_t* src_argb0,
>                  int src_stride_argb0,
>-                 const uint8* src_argb1,
>+                 const uint8_t* src_argb1,
>                  int src_stride_argb1,
>-                 uint8* dst_argb,
>+                 uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int width,
>                  int height) {
>   int y;
>-  void (*ARGBSubtractRow)(const uint8* src0, const uint8* src1, uint8* dst,
>-                          int width) = ARGBSubtractRow_C;
>+  void (*ARGBSubtractRow)(const uint8_t* src0, const uint8_t* src1,
>+                          uint8_t* dst, int width) = ARGBSubtractRow_C;
>   if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1424,20 +1497,20 @@ int ARGBSubtract(const uint8* src_argb0,
>   return 0;
> }
> // Convert I422 to RGBA with matrix
>-static int I422ToRGBAMatrix(const uint8* src_y,
>+static int I422ToRGBAMatrix(const uint8_t* src_y,
>                             int src_stride_y,
>-                            const uint8* src_u,
>+                            const uint8_t* src_u,
>                             int src_stride_u,
>-                            const uint8* src_v,
>+                            const uint8_t* src_v,
>                             int src_stride_v,
>-                            uint8* dst_rgba,
>+                            uint8_t* dst_rgba,
>                             int dst_stride_rgba,
>                             const struct YuvConstants* yuvconstants,
>                             int width,
>                             int height) {
>   int y;
>-  void (*I422ToRGBARow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf,
>+  void (*I422ToRGBARow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf,
>                         const struct YuvConstants* yuvconstants, int width) =
>       I422ToRGBARow_C;
>   if (!src_y || !src_u || !src_v || !dst_rgba || width <= 0 || height == 0) {
>@@ -1473,15 +1546,6 @@ static int I422ToRGBAMatrix(const uint8* src_y,
>     }
>   }
> #endif
>-#if defined(HAS_I422TORGBAROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_rgba, 4) && IS_ALIGNED(dst_stride_rgba, 4)) {
>-    I422ToRGBARow = I422ToRGBARow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TORGBAROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToRGBARow = I422ToRGBARow_Any_MSA;
>@@ -1503,13 +1567,13 @@ static int I422ToRGBAMatrix(const uint8* src_y,
> 
> // Convert I422 to RGBA.
> LIBYUV_API
>-int I422ToRGBA(const uint8* src_y,
>+int I422ToRGBA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_rgba,
>+               uint8_t* dst_rgba,
>                int dst_stride_rgba,
>                int width,
>                int height) {
>@@ -1520,13 +1584,13 @@ int I422ToRGBA(const uint8* src_y,
> 
> // Convert I422 to BGRA.
> LIBYUV_API
>-int I422ToBGRA(const uint8* src_y,
>+int I422ToBGRA(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_bgra,
>+               uint8_t* dst_bgra,
>                int dst_stride_bgra,
>                int width,
>                int height) {
>@@ -1539,17 +1603,17 @@ int I422ToBGRA(const uint8* src_y,
> 
> // Convert NV12 to RGB565.
> LIBYUV_API
>-int NV12ToRGB565(const uint8* src_y,
>+int NV12ToRGB565(const uint8_t* src_y,
>                  int src_stride_y,
>-                 const uint8* src_uv,
>+                 const uint8_t* src_uv,
>                  int src_stride_uv,
>-                 uint8* dst_rgb565,
>+                 uint8_t* dst_rgb565,
>                  int dst_stride_rgb565,
>                  int width,
>                  int height) {
>   int y;
>   void (*NV12ToRGB565Row)(
>-      const uint8* y_buf, const uint8* uv_buf, uint8* rgb_buf,
>+      const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* rgb_buf,
>       const struct YuvConstants* yuvconstants, int width) = NV12ToRGB565Row_C;
>   if (!src_y || !src_uv || !dst_rgb565 || width <= 0 || height == 0) {
>     return -1;
>@@ -1606,14 +1670,14 @@ int NV12ToRGB565(const uint8* src_y,
> 
> // Convert RAW to RGB24.
> LIBYUV_API
>-int RAWToRGB24(const uint8* src_raw,
>+int RAWToRGB24(const uint8_t* src_raw,
>                int src_stride_raw,
>-               uint8* dst_rgb24,
>+               uint8_t* dst_rgb24,
>                int dst_stride_rgb24,
>                int width,
>                int height) {
>   int y;
>-  void (*RAWToRGB24Row)(const uint8* src_rgb, uint8* dst_rgb24, int width) =
>+  void (*RAWToRGB24Row)(const uint8_t* src_rgb, uint8_t* dst_rgb24, int width) =
>       RAWToRGB24Row_C;
>   if (!src_raw || !dst_rgb24 || width <= 0 || height == 0) {
>     return -1;
>@@ -1664,13 +1728,13 @@ int RAWToRGB24(const uint8* src_raw,
> }
> 
> LIBYUV_API
>-void SetPlane(uint8* dst_y,
>+void SetPlane(uint8_t* dst_y,
>               int dst_stride_y,
>               int width,
>               int height,
>-              uint32 value) {
>+              uint32_t value) {
>   int y;
>-  void (*SetRow)(uint8 * dst, uint8 value, int width) = SetRow_C;
>+  void (*SetRow)(uint8_t * dst, uint8_t value, int width) = SetRow_C;
>   if (height < 0) {
>     height = -height;
>     dst_y = dst_y + (height - 1) * dst_stride_y;
>@@ -1718,11 +1782,11 @@ void SetPlane(uint8* dst_y,
> 
> // Draw a rectangle into I420
> LIBYUV_API
>-int I420Rect(uint8* dst_y,
>+int I420Rect(uint8_t* dst_y,
>              int dst_stride_y,
>-             uint8* dst_u,
>+             uint8_t* dst_u,
>              int dst_stride_u,
>-             uint8* dst_v,
>+             uint8_t* dst_v,
>              int dst_stride_v,
>              int x,
>              int y,
>@@ -1733,9 +1797,9 @@ int I420Rect(uint8* dst_y,
>              int value_v) {
>   int halfwidth = (width + 1) >> 1;
>   int halfheight = (height + 1) >> 1;
>-  uint8* start_y = dst_y + y * dst_stride_y + x;
>-  uint8* start_u = dst_u + (y / 2) * dst_stride_u + (x / 2);
>-  uint8* start_v = dst_v + (y / 2) * dst_stride_v + (x / 2);
>+  uint8_t* start_y = dst_y + y * dst_stride_y + x;
>+  uint8_t* start_u = dst_u + (y / 2) * dst_stride_u + (x / 2);
>+  uint8_t* start_v = dst_v + (y / 2) * dst_stride_v + (x / 2);
>   if (!dst_y || !dst_u || !dst_v || width <= 0 || height == 0 || x < 0 ||
>       y < 0 || value_y < 0 || value_y > 255 || value_u < 0 || value_u > 255 ||
>       value_v < 0 || value_v > 255) {
>@@ -1750,15 +1814,16 @@ int I420Rect(uint8* dst_y,
> 
> // Draw a rectangle into ARGB
> LIBYUV_API
>-int ARGBRect(uint8* dst_argb,
>+int ARGBRect(uint8_t* dst_argb,
>              int dst_stride_argb,
>              int dst_x,
>              int dst_y,
>              int width,
>              int height,
>-             uint32 value) {
>+             uint32_t value) {
>   int y;
>-  void (*ARGBSetRow)(uint8 * dst_argb, uint32 value, int width) = ARGBSetRow_C;
>+  void (*ARGBSetRow)(uint8_t * dst_argb, uint32_t value, int width) =
>+      ARGBSetRow_C;
>   if (!dst_argb || width <= 0 || height == 0 || dst_x < 0 || dst_y < 0) {
>     return -1;
>   }
>@@ -1819,15 +1884,15 @@ int ARGBRect(uint8* dst_argb,
> //   f is foreground pixel premultiplied by alpha
> 
> LIBYUV_API
>-int ARGBAttenuate(const uint8* src_argb,
>+int ARGBAttenuate(const uint8_t* src_argb,
>                   int src_stride_argb,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int width,
>                   int height) {
>   int y;
>-  void (*ARGBAttenuateRow)(const uint8* src_argb, uint8* dst_argb, int width) =
>-      ARGBAttenuateRow_C;
>+  void (*ARGBAttenuateRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>+                           int width) = ARGBAttenuateRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -1885,14 +1950,14 @@ int ARGBAttenuate(const uint8* src_argb,
> 
> // Convert preattentuated ARGB to unattenuated ARGB.
> LIBYUV_API
>-int ARGBUnattenuate(const uint8* src_argb,
>+int ARGBUnattenuate(const uint8_t* src_argb,
>                     int src_stride_argb,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height) {
>   int y;
>-  void (*ARGBUnattenuateRow)(const uint8* src_argb, uint8* dst_argb,
>+  void (*ARGBUnattenuateRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>                              int width) = ARGBUnattenuateRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1936,14 +2001,14 @@ int ARGBUnattenuate(const uint8* src_argb,
> 
> // Convert ARGB to Grayed ARGB.
> LIBYUV_API
>-int ARGBGrayTo(const uint8* src_argb,
>+int ARGBGrayTo(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height) {
>   int y;
>-  void (*ARGBGrayRow)(const uint8* src_argb, uint8* dst_argb, int width) =
>+  void (*ARGBGrayRow)(const uint8_t* src_argb, uint8_t* dst_argb, int width) =
>       ARGBGrayRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -1985,16 +2050,16 @@ int ARGBGrayTo(const uint8* src_argb,
> 
> // Make a rectangle of ARGB gray scale.
> LIBYUV_API
>-int ARGBGray(uint8* dst_argb,
>+int ARGBGray(uint8_t* dst_argb,
>              int dst_stride_argb,
>              int dst_x,
>              int dst_y,
>              int width,
>              int height) {
>   int y;
>-  void (*ARGBGrayRow)(const uint8* src_argb, uint8* dst_argb, int width) =
>+  void (*ARGBGrayRow)(const uint8_t* src_argb, uint8_t* dst_argb, int width) =
>       ARGBGrayRow_C;
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0) {
>     return -1;
>   }
>@@ -2029,15 +2094,15 @@ int ARGBGray(uint8* dst_argb,
> 
> // Make a rectangle of ARGB Sepia tone.
> LIBYUV_API
>-int ARGBSepia(uint8* dst_argb,
>+int ARGBSepia(uint8_t* dst_argb,
>               int dst_stride_argb,
>               int dst_x,
>               int dst_y,
>               int width,
>               int height) {
>   int y;
>-  void (*ARGBSepiaRow)(uint8 * dst_argb, int width) = ARGBSepiaRow_C;
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  void (*ARGBSepiaRow)(uint8_t * dst_argb, int width) = ARGBSepiaRow_C;
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0) {
>     return -1;
>   }
>@@ -2073,16 +2138,16 @@ int ARGBSepia(uint8* dst_argb,
> // Apply a 4x4 matrix to each ARGB pixel.
> // Note: Normally for shading, but can be used to swizzle or invert.
> LIBYUV_API
>-int ARGBColorMatrix(const uint8* src_argb,
>+int ARGBColorMatrix(const uint8_t* src_argb,
>                     int src_stride_argb,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>-                    const int8* matrix_argb,
>+                    const int8_t* matrix_argb,
>                     int width,
>                     int height) {
>   int y;
>-  void (*ARGBColorMatrixRow)(const uint8* src_argb, uint8* dst_argb,
>-                             const int8* matrix_argb, int width) =
>+  void (*ARGBColorMatrixRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>+                             const int8_t* matrix_argb, int width) =
>       ARGBColorMatrixRow_C;
>   if (!src_argb || !dst_argb || !matrix_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -2124,15 +2189,15 @@ int ARGBColorMatrix(const uint8* src_argb,
> // Apply a 4x3 matrix to each ARGB pixel.
> // Deprecated.
> LIBYUV_API
>-int RGBColorMatrix(uint8* dst_argb,
>+int RGBColorMatrix(uint8_t* dst_argb,
>                    int dst_stride_argb,
>-                   const int8* matrix_rgb,
>+                   const int8_t* matrix_rgb,
>                    int dst_x,
>                    int dst_y,
>                    int width,
>                    int height) {
>-  SIMD_ALIGNED(int8 matrix_argb[16]);
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  SIMD_ALIGNED(int8_t matrix_argb[16]);
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || !matrix_rgb || width <= 0 || height <= 0 || dst_x < 0 ||
>       dst_y < 0) {
>     return -1;
>@@ -2154,24 +2219,24 @@ int RGBColorMatrix(uint8* dst_argb,
>   matrix_argb[14] = matrix_argb[13] = matrix_argb[12] = 0;
>   matrix_argb[15] = 64;  // 1.0
> 
>-  return ARGBColorMatrix((const uint8*)(dst), dst_stride_argb, dst,
>+  return ARGBColorMatrix((const uint8_t*)(dst), dst_stride_argb, dst,
>                          dst_stride_argb, &matrix_argb[0], width, height);
> }
> 
> // Apply a color table each ARGB pixel.
> // Table contains 256 ARGB values.
> LIBYUV_API
>-int ARGBColorTable(uint8* dst_argb,
>+int ARGBColorTable(uint8_t* dst_argb,
>                    int dst_stride_argb,
>-                   const uint8* table_argb,
>+                   const uint8_t* table_argb,
>                    int dst_x,
>                    int dst_y,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGBColorTableRow)(uint8 * dst_argb, const uint8* table_argb,
>+  void (*ARGBColorTableRow)(uint8_t * dst_argb, const uint8_t* table_argb,
>                             int width) = ARGBColorTableRow_C;
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || !table_argb || width <= 0 || height <= 0 || dst_x < 0 ||
>       dst_y < 0) {
>     return -1;
>@@ -2197,17 +2262,17 @@ int ARGBColorTable(uint8* dst_argb,
> // Apply a color table each ARGB pixel but preserve destination alpha.
> // Table contains 256 ARGB values.
> LIBYUV_API
>-int RGBColorTable(uint8* dst_argb,
>+int RGBColorTable(uint8_t* dst_argb,
>                   int dst_stride_argb,
>-                  const uint8* table_argb,
>+                  const uint8_t* table_argb,
>                   int dst_x,
>                   int dst_y,
>                   int width,
>                   int height) {
>   int y;
>-  void (*RGBColorTableRow)(uint8 * dst_argb, const uint8* table_argb,
>+  void (*RGBColorTableRow)(uint8_t * dst_argb, const uint8_t* table_argb,
>                            int width) = RGBColorTableRow_C;
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || !table_argb || width <= 0 || height <= 0 || dst_x < 0 ||
>       dst_y < 0) {
>     return -1;
>@@ -2240,7 +2305,7 @@ int RGBColorTable(uint8* dst_argb,
> // Caveat - although SSE2 saturates, the C function does not and should be used
> // with care if doing anything but quantization.
> LIBYUV_API
>-int ARGBQuantize(uint8* dst_argb,
>+int ARGBQuantize(uint8_t* dst_argb,
>                  int dst_stride_argb,
>                  int scale,
>                  int interval_size,
>@@ -2250,9 +2315,9 @@ int ARGBQuantize(uint8* dst_argb,
>                  int width,
>                  int height) {
>   int y;
>-  void (*ARGBQuantizeRow)(uint8 * dst_argb, int scale, int interval_size,
>+  void (*ARGBQuantizeRow)(uint8_t * dst_argb, int scale, int interval_size,
>                           int interval_offset, int width) = ARGBQuantizeRow_C;
>-  uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>+  uint8_t* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4;
>   if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0 ||
>       interval_size < 1 || interval_size > 255) {
>     return -1;
>@@ -2288,17 +2353,17 @@ int ARGBQuantize(uint8* dst_argb,
> // Computes table of cumulative sum for image where the value is the sum
> // of all values above and to the left of the entry. Used by ARGBBlur.
> LIBYUV_API
>-int ARGBComputeCumulativeSum(const uint8* src_argb,
>+int ARGBComputeCumulativeSum(const uint8_t* src_argb,
>                              int src_stride_argb,
>-                             int32* dst_cumsum,
>+                             int32_t* dst_cumsum,
>                              int dst_stride32_cumsum,
>                              int width,
>                              int height) {
>   int y;
>-  void (*ComputeCumulativeSumRow)(const uint8* row, int32* cumsum,
>-                                  const int32* previous_cumsum, int width) =
>+  void (*ComputeCumulativeSumRow)(const uint8_t* row, int32_t* cumsum,
>+                                  const int32_t* previous_cumsum, int width) =
>       ComputeCumulativeSumRow_C;
>-  int32* previous_cumsum = dst_cumsum;
>+  int32_t* previous_cumsum = dst_cumsum;
>   if (!dst_cumsum || !src_argb || width <= 0 || height <= 0) {
>     return -1;
>   }
>@@ -2322,25 +2387,25 @@ int ARGBComputeCumulativeSum(const uint8* src_argb,
> // aligned to 16 byte boundary. height can be radius * 2 + 2 to save memory
> // as the buffer is treated as circular.
> LIBYUV_API
>-int ARGBBlur(const uint8* src_argb,
>+int ARGBBlur(const uint8_t* src_argb,
>              int src_stride_argb,
>-             uint8* dst_argb,
>+             uint8_t* dst_argb,
>              int dst_stride_argb,
>-             int32* dst_cumsum,
>+             int32_t* dst_cumsum,
>              int dst_stride32_cumsum,
>              int width,
>              int height,
>              int radius) {
>   int y;
>-  void (*ComputeCumulativeSumRow)(const uint8* row, int32* cumsum,
>-                                  const int32* previous_cumsum, int width) =
>+  void (*ComputeCumulativeSumRow)(const uint8_t* row, int32_t* cumsum,
>+                                  const int32_t* previous_cumsum, int width) =
>       ComputeCumulativeSumRow_C;
>-  void (*CumulativeSumToAverageRow)(const int32* topleft, const int32* botleft,
>-                                    int width, int area, uint8* dst,
>-                                    int count) = CumulativeSumToAverageRow_C;
>-  int32* cumsum_bot_row;
>-  int32* max_cumsum_bot_row;
>-  int32* cumsum_top_row;
>+  void (*CumulativeSumToAverageRow)(
>+      const int32_t* topleft, const int32_t* botleft, int width, int area,
>+      uint8_t* dst, int count) = CumulativeSumToAverageRow_C;
>+  int32_t* cumsum_bot_row;
>+  int32_t* max_cumsum_bot_row;
>+  int32_t* cumsum_top_row;
> 
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>@@ -2394,7 +2459,7 @@ int ARGBBlur(const uint8* src_argb,
>     // Increment cumsum_bot_row pointer with circular buffer wrap around and
>     // then fill in a row of CumulativeSum.
>     if ((y + radius) < height) {
>-      const int32* prev_cumsum_bot_row = cumsum_bot_row;
>+      const int32_t* prev_cumsum_bot_row = cumsum_bot_row;
>       cumsum_bot_row += dst_stride32_cumsum;
>       if (cumsum_bot_row >= max_cumsum_bot_row) {
>         cumsum_bot_row = dst_cumsum;
>@@ -2432,16 +2497,16 @@ int ARGBBlur(const uint8* src_argb,
> 
> // Multiply ARGB image by a specified ARGB value.
> LIBYUV_API
>-int ARGBShade(const uint8* src_argb,
>+int ARGBShade(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height,
>-              uint32 value) {
>+              uint32_t value) {
>   int y;
>-  void (*ARGBShadeRow)(const uint8* src_argb, uint8* dst_argb, int width,
>-                       uint32 value) = ARGBShadeRow_C;
>+  void (*ARGBShadeRow)(const uint8_t* src_argb, uint8_t* dst_argb, int width,
>+                       uint32_t value) = ARGBShadeRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0 || value == 0u) {
>     return -1;
>   }
>@@ -2482,17 +2547,17 @@ int ARGBShade(const uint8* src_argb,
> 
> // Interpolate 2 planes by specified amount (0 to 255).
> LIBYUV_API
>-int InterpolatePlane(const uint8* src0,
>+int InterpolatePlane(const uint8_t* src0,
>                      int src_stride0,
>-                     const uint8* src1,
>+                     const uint8_t* src1,
>                      int src_stride1,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_stride,
>                      int width,
>                      int height,
>                      int interpolation) {
>   int y;
>-  void (*InterpolateRow)(uint8 * dst_ptr, const uint8* src_ptr,
>+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>   if (!src0 || !src1 || !dst || width <= 0 || height == 0) {
>@@ -2534,14 +2599,6 @@ int InterpolatePlane(const uint8* src0,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src0, 4) &&
>-      IS_ALIGNED(src_stride0, 4) && IS_ALIGNED(src1, 4) &&
>-      IS_ALIGNED(src_stride1, 4) && IS_ALIGNED(dst, 4) &&
>-      IS_ALIGNED(dst_stride, 4) && IS_ALIGNED(width, 4)) {
>-    InterpolateRow = InterpolateRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -2562,11 +2619,11 @@ int InterpolatePlane(const uint8* src0,
> 
> // Interpolate 2 ARGB images by specified amount (0 to 255).
> LIBYUV_API
>-int ARGBInterpolate(const uint8* src_argb0,
>+int ARGBInterpolate(const uint8_t* src_argb0,
>                     int src_stride_argb0,
>-                    const uint8* src_argb1,
>+                    const uint8_t* src_argb1,
>                     int src_stride_argb1,
>-                    uint8* dst_argb,
>+                    uint8_t* dst_argb,
>                     int dst_stride_argb,
>                     int width,
>                     int height,
>@@ -2578,23 +2635,23 @@ int ARGBInterpolate(const uint8* src_argb0,
> 
> // Interpolate 2 YUV images by specified amount (0 to 255).
> LIBYUV_API
>-int I420Interpolate(const uint8* src0_y,
>+int I420Interpolate(const uint8_t* src0_y,
>                     int src0_stride_y,
>-                    const uint8* src0_u,
>+                    const uint8_t* src0_u,
>                     int src0_stride_u,
>-                    const uint8* src0_v,
>+                    const uint8_t* src0_v,
>                     int src0_stride_v,
>-                    const uint8* src1_y,
>+                    const uint8_t* src1_y,
>                     int src1_stride_y,
>-                    const uint8* src1_u,
>+                    const uint8_t* src1_u,
>                     int src1_stride_u,
>-                    const uint8* src1_v,
>+                    const uint8_t* src1_v,
>                     int src1_stride_v,
>-                    uint8* dst_y,
>+                    uint8_t* dst_y,
>                     int dst_stride_y,
>-                    uint8* dst_u,
>+                    uint8_t* dst_u,
>                     int dst_stride_u,
>-                    uint8* dst_v,
>+                    uint8_t* dst_v,
>                     int dst_stride_v,
>                     int width,
>                     int height,
>@@ -2616,16 +2673,16 @@ int I420Interpolate(const uint8* src0_y,
> 
> // Shuffle ARGB channel order.  e.g. BGRA to ARGB.
> LIBYUV_API
>-int ARGBShuffle(const uint8* src_bgra,
>+int ARGBShuffle(const uint8_t* src_bgra,
>                 int src_stride_bgra,
>-                uint8* dst_argb,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>-                const uint8* shuffler,
>+                const uint8_t* shuffler,
>                 int width,
>                 int height) {
>   int y;
>-  void (*ARGBShuffleRow)(const uint8* src_bgra, uint8* dst_argb,
>-                         const uint8* shuffler, int width) = ARGBShuffleRow_C;
>+  void (*ARGBShuffleRow)(const uint8_t* src_bgra, uint8_t* dst_argb,
>+                         const uint8_t* shuffler, int width) = ARGBShuffleRow_C;
>   if (!src_bgra || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -2641,14 +2698,6 @@ int ARGBShuffle(const uint8* src_bgra,
>     height = 1;
>     src_stride_bgra = dst_stride_argb = 0;
>   }
>-#if defined(HAS_ARGBSHUFFLEROW_SSE2)
>-  if (TestCpuFlag(kCpuHasSSE2)) {
>-    ARGBShuffleRow = ARGBShuffleRow_Any_SSE2;
>-    if (IS_ALIGNED(width, 4)) {
>-      ARGBShuffleRow = ARGBShuffleRow_SSE2;
>-    }
>-  }
>-#endif
> #if defined(HAS_ARGBSHUFFLEROW_SSSE3)
>   if (TestCpuFlag(kCpuHasSSSE3)) {
>     ARGBShuffleRow = ARGBShuffleRow_Any_SSSE3;
>@@ -2691,23 +2740,23 @@ int ARGBShuffle(const uint8* src_bgra,
> }
> 
> // Sobel ARGB effect.
>-static int ARGBSobelize(const uint8* src_argb,
>+static int ARGBSobelize(const uint8_t* src_argb,
>                         int src_stride_argb,
>-                        uint8* dst_argb,
>+                        uint8_t* dst_argb,
>                         int dst_stride_argb,
>                         int width,
>                         int height,
>-                        void (*SobelRow)(const uint8* src_sobelx,
>-                                         const uint8* src_sobely,
>-                                         uint8* dst,
>+                        void (*SobelRow)(const uint8_t* src_sobelx,
>+                                         const uint8_t* src_sobely,
>+                                         uint8_t* dst,
>                                          int width)) {
>   int y;
>-  void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_g, int width) =
>+  void (*ARGBToYJRow)(const uint8_t* src_argb, uint8_t* dst_g, int width) =
>       ARGBToYJRow_C;
>-  void (*SobelYRow)(const uint8* src_y0, const uint8* src_y1, uint8* dst_sobely,
>-                    int width) = SobelYRow_C;
>-  void (*SobelXRow)(const uint8* src_y0, const uint8* src_y1,
>-                    const uint8* src_y2, uint8* dst_sobely, int width) =
>+  void (*SobelYRow)(const uint8_t* src_y0, const uint8_t* src_y1,
>+                    uint8_t* dst_sobely, int width) = SobelYRow_C;
>+  void (*SobelXRow)(const uint8_t* src_y0, const uint8_t* src_y1,
>+                    const uint8_t* src_y2, uint8_t* dst_sobely, int width) =
>       SobelXRow_C;
>   const int kEdge = 16;  // Extra pixels at start of row for extrude/align.
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>@@ -2787,14 +2836,14 @@ static int ARGBSobelize(const uint8* src_argb,
>     // 3 rows with edges before/after.
>     const int kRowSize = (width + kEdge + 31) & ~31;
>     align_buffer_64(rows, kRowSize * 2 + (kEdge + kRowSize * 3 + kEdge));
>-    uint8* row_sobelx = rows;
>-    uint8* row_sobely = rows + kRowSize;
>-    uint8* row_y = rows + kRowSize * 2;
>+    uint8_t* row_sobelx = rows;
>+    uint8_t* row_sobely = rows + kRowSize;
>+    uint8_t* row_y = rows + kRowSize * 2;
> 
>     // Convert first row.
>-    uint8* row_y0 = row_y + kEdge;
>-    uint8* row_y1 = row_y0 + kRowSize;
>-    uint8* row_y2 = row_y1 + kRowSize;
>+    uint8_t* row_y0 = row_y + kEdge;
>+    uint8_t* row_y1 = row_y0 + kRowSize;
>+    uint8_t* row_y2 = row_y1 + kRowSize;
>     ARGBToYJRow(src_argb, row_y0, width);
>     row_y0[-1] = row_y0[0];
>     memset(row_y0 + width, row_y0[width - 1], 16);  // Extrude 16 for valgrind.
>@@ -2818,7 +2867,7 @@ static int ARGBSobelize(const uint8* src_argb,
> 
>       // Cycle thru circular queue of 3 row_y buffers.
>       {
>-        uint8* row_yt = row_y0;
>+        uint8_t* row_yt = row_y0;
>         row_y0 = row_y1;
>         row_y1 = row_y2;
>         row_y2 = row_yt;
>@@ -2833,14 +2882,14 @@ static int ARGBSobelize(const uint8* src_argb,
> 
> // Sobel ARGB effect.
> LIBYUV_API
>-int ARGBSobel(const uint8* src_argb,
>+int ARGBSobel(const uint8_t* src_argb,
>               int src_stride_argb,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int width,
>               int height) {
>-  void (*SobelRow)(const uint8* src_sobelx, const uint8* src_sobely,
>-                   uint8* dst_argb, int width) = SobelRow_C;
>+  void (*SobelRow)(const uint8_t* src_sobelx, const uint8_t* src_sobely,
>+                   uint8_t* dst_argb, int width) = SobelRow_C;
> #if defined(HAS_SOBELROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     SobelRow = SobelRow_Any_SSE2;
>@@ -2871,14 +2920,14 @@ int ARGBSobel(const uint8* src_argb,
> 
> // Sobel ARGB effect with planar output.
> LIBYUV_API
>-int ARGBSobelToPlane(const uint8* src_argb,
>+int ARGBSobelToPlane(const uint8_t* src_argb,
>                      int src_stride_argb,
>-                     uint8* dst_y,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>                      int width,
>                      int height) {
>-  void (*SobelToPlaneRow)(const uint8* src_sobelx, const uint8* src_sobely,
>-                          uint8* dst_, int width) = SobelToPlaneRow_C;
>+  void (*SobelToPlaneRow)(const uint8_t* src_sobelx, const uint8_t* src_sobely,
>+                          uint8_t* dst_, int width) = SobelToPlaneRow_C;
> #if defined(HAS_SOBELTOPLANEROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     SobelToPlaneRow = SobelToPlaneRow_Any_SSE2;
>@@ -2910,14 +2959,14 @@ int ARGBSobelToPlane(const uint8* src_argb,
> // SobelXY ARGB effect.
> // Similar to Sobel, but also stores Sobel X in R and Sobel Y in B.  G = Sobel.
> LIBYUV_API
>-int ARGBSobelXY(const uint8* src_argb,
>+int ARGBSobelXY(const uint8_t* src_argb,
>                 int src_stride_argb,
>-                uint8* dst_argb,
>+                uint8_t* dst_argb,
>                 int dst_stride_argb,
>                 int width,
>                 int height) {
>-  void (*SobelXYRow)(const uint8* src_sobelx, const uint8* src_sobely,
>-                     uint8* dst_argb, int width) = SobelXYRow_C;
>+  void (*SobelXYRow)(const uint8_t* src_sobelx, const uint8_t* src_sobely,
>+                     uint8_t* dst_argb, int width) = SobelXYRow_C;
> #if defined(HAS_SOBELXYROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     SobelXYRow = SobelXYRow_Any_SSE2;
>@@ -2948,15 +2997,15 @@ int ARGBSobelXY(const uint8* src_argb,
> 
> // Apply a 4x4 polynomial to each ARGB pixel.
> LIBYUV_API
>-int ARGBPolynomial(const uint8* src_argb,
>+int ARGBPolynomial(const uint8_t* src_argb,
>                    int src_stride_argb,
>-                   uint8* dst_argb,
>+                   uint8_t* dst_argb,
>                    int dst_stride_argb,
>                    const float* poly,
>                    int width,
>                    int height) {
>   int y;
>-  void (*ARGBPolynomialRow)(const uint8* src_argb, uint8* dst_argb,
>+  void (*ARGBPolynomialRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>                             const float* poly, int width) = ARGBPolynomialRow_C;
>   if (!src_argb || !dst_argb || !poly || width <= 0 || height == 0) {
>     return -1;
>@@ -2996,16 +3045,16 @@ int ARGBPolynomial(const uint8* src_argb,
> // Convert plane of 16 bit shorts to half floats.
> // Source values are multiplied by scale before storing as half float.
> LIBYUV_API
>-int HalfFloatPlane(const uint16* src_y,
>+int HalfFloatPlane(const uint16_t* src_y,
>                    int src_stride_y,
>-                   uint16* dst_y,
>+                   uint16_t* dst_y,
>                    int dst_stride_y,
>                    float scale,
>                    int width,
>                    int height) {
>   int y;
>-  void (*HalfFloatRow)(const uint16* src, uint16* dst, float scale, int width) =
>-      HalfFloatRow_C;
>+  void (*HalfFloatRow)(const uint16_t* src, uint16_t* dst, float scale,
>+                       int width) = HalfFloatRow_C;
>   if (!src_y || !dst_y || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -3074,19 +3123,40 @@ int HalfFloatPlane(const uint16* src_y,
>   return 0;
> }
> 
>+// Convert a buffer of bytes to floats, scale the values and store as floats.
>+LIBYUV_API
>+int ByteToFloat(const uint8_t* src_y, float* dst_y, float scale, int width) {
>+  void (*ByteToFloatRow)(const uint8_t* src, float* dst, float scale,
>+                         int width) = ByteToFloatRow_C;
>+  if (!src_y || !dst_y || width <= 0) {
>+    return -1;
>+  }
>+#if defined(HAS_BYTETOFLOATROW_NEON)
>+  if (TestCpuFlag(kCpuHasNEON)) {
>+    ByteToFloatRow = ByteToFloatRow_Any_NEON;
>+    if (IS_ALIGNED(width, 8)) {
>+      ByteToFloatRow = ByteToFloatRow_NEON;
>+    }
>+  }
>+#endif
>+
>+  ByteToFloatRow(src_y, dst_y, scale, width);
>+  return 0;
>+}
>+
> // Apply a lumacolortable to each ARGB pixel.
> LIBYUV_API
>-int ARGBLumaColorTable(const uint8* src_argb,
>+int ARGBLumaColorTable(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_argb,
>+                       uint8_t* dst_argb,
>                        int dst_stride_argb,
>-                       const uint8* luma,
>+                       const uint8_t* luma,
>                        int width,
>                        int height) {
>   int y;
>   void (*ARGBLumaColorTableRow)(
>-      const uint8* src_argb, uint8* dst_argb, int width, const uint8* luma,
>-      const uint32 lumacoeff) = ARGBLumaColorTableRow_C;
>+      const uint8_t* src_argb, uint8_t* dst_argb, int width,
>+      const uint8_t* luma, const uint32_t lumacoeff) = ARGBLumaColorTableRow_C;
>   if (!src_argb || !dst_argb || !luma || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -3118,15 +3188,15 @@ int ARGBLumaColorTable(const uint8* src_argb,
> 
> // Copy Alpha from one ARGB image to another.
> LIBYUV_API
>-int ARGBCopyAlpha(const uint8* src_argb,
>+int ARGBCopyAlpha(const uint8_t* src_argb,
>                   int src_stride_argb,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int width,
>                   int height) {
>   int y;
>-  void (*ARGBCopyAlphaRow)(const uint8* src_argb, uint8* dst_argb, int width) =
>-      ARGBCopyAlphaRow_C;
>+  void (*ARGBCopyAlphaRow)(const uint8_t* src_argb, uint8_t* dst_argb,
>+                           int width) = ARGBCopyAlphaRow_C;
>   if (!src_argb || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -3169,10 +3239,10 @@ int ARGBCopyAlpha(const uint8* src_argb,
> 
> // Extract just the alpha channel from ARGB.
> LIBYUV_API
>-int ARGBExtractAlpha(const uint8* src_argb,
>-                     int src_stride,
>-                     uint8* dst_a,
>-                     int dst_stride,
>+int ARGBExtractAlpha(const uint8_t* src_argb,
>+                     int src_stride_argb,
>+                     uint8_t* dst_a,
>+                     int dst_stride_a,
>                      int width,
>                      int height) {
>   if (!src_argb || !dst_a || width <= 0 || height == 0) {
>@@ -3181,17 +3251,17 @@ int ARGBExtractAlpha(const uint8* src_argb,
>   // Negative height means invert the image.
>   if (height < 0) {
>     height = -height;
>-    src_argb += (height - 1) * src_stride;
>-    src_stride = -src_stride;
>+    src_argb += (height - 1) * src_stride_argb;
>+    src_stride_argb = -src_stride_argb;
>   }
>   // Coalesce rows.
>-  if (src_stride == width * 4 && dst_stride == width) {
>+  if (src_stride_argb == width * 4 && dst_stride_a == width) {
>     width *= height;
>     height = 1;
>-    src_stride = dst_stride = 0;
>+    src_stride_argb = dst_stride_a = 0;
>   }
>-  void (*ARGBExtractAlphaRow)(const uint8* src_argb, uint8* dst_a, int width) =
>-      ARGBExtractAlphaRow_C;
>+  void (*ARGBExtractAlphaRow)(const uint8_t* src_argb, uint8_t* dst_a,
>+                              int width) = ARGBExtractAlphaRow_C;
> #if defined(HAS_ARGBEXTRACTALPHAROW_SSE2)
>   if (TestCpuFlag(kCpuHasSSE2)) {
>     ARGBExtractAlphaRow = IS_ALIGNED(width, 8) ? ARGBExtractAlphaRow_SSE2
>@@ -3219,23 +3289,23 @@ int ARGBExtractAlpha(const uint8* src_argb,
> 
>   for (int y = 0; y < height; ++y) {
>     ARGBExtractAlphaRow(src_argb, dst_a, width);
>-    src_argb += src_stride;
>-    dst_a += dst_stride;
>+    src_argb += src_stride_argb;
>+    dst_a += dst_stride_a;
>   }
>   return 0;
> }
> 
> // Copy a planar Y channel to the alpha channel of a destination ARGB image.
> LIBYUV_API
>-int ARGBCopyYToAlpha(const uint8* src_y,
>+int ARGBCopyYToAlpha(const uint8_t* src_y,
>                      int src_stride_y,
>-                     uint8* dst_argb,
>+                     uint8_t* dst_argb,
>                      int dst_stride_argb,
>                      int width,
>                      int height) {
>   int y;
>-  void (*ARGBCopyYToAlphaRow)(const uint8* src_y, uint8* dst_argb, int width) =
>-      ARGBCopyYToAlphaRow_C;
>+  void (*ARGBCopyYToAlphaRow)(const uint8_t* src_y, uint8_t* dst_argb,
>+                              int width) = ARGBCopyYToAlphaRow_C;
>   if (!src_y || !dst_argb || width <= 0 || height == 0) {
>     return -1;
>   }
>@@ -3280,19 +3350,19 @@ int ARGBCopyYToAlpha(const uint8* src_y,
> // directly. A SplitUVRow_Odd function could copy the remaining chroma.
> 
> LIBYUV_API
>-int YUY2ToNV12(const uint8* src_yuy2,
>+int YUY2ToNV12(const uint8_t* src_yuy2,
>                int src_stride_yuy2,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height) {
>   int y;
>   int halfwidth = (width + 1) >> 1;
>-  void (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
>+  void (*SplitUVRow)(const uint8_t* src_uv, uint8_t* dst_u, uint8_t* dst_v,
>                      int width) = SplitUVRow_C;
>-  void (*InterpolateRow)(uint8 * dst_ptr, const uint8* src_ptr,
>+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>   if (!src_yuy2 || !dst_y || !dst_uv || width <= 0 || height == 0) {
>@@ -3396,19 +3466,19 @@ int YUY2ToNV12(const uint8* src_yuy2,
> }
> 
> LIBYUV_API
>-int UYVYToNV12(const uint8* src_uyvy,
>+int UYVYToNV12(const uint8_t* src_uyvy,
>                int src_stride_uyvy,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_uv,
>+               uint8_t* dst_uv,
>                int dst_stride_uv,
>                int width,
>                int height) {
>   int y;
>   int halfwidth = (width + 1) >> 1;
>-  void (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
>+  void (*SplitUVRow)(const uint8_t* src_uv, uint8_t* dst_u, uint8_t* dst_v,
>                      int width) = SplitUVRow_C;
>-  void (*InterpolateRow)(uint8 * dst_ptr, const uint8* src_ptr,
>+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>   if (!src_uyvy || !dst_y || !dst_uv || width <= 0 || height == 0) {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate.cc
>index b16af5071853491f17004cfaec858bbf1bc150aa..f2bed85b7552f250d419ec2889c1920ba540298a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate.cc
>@@ -22,18 +22,18 @@ extern "C" {
> #endif
> 
> LIBYUV_API
>-void TransposePlane(const uint8* src,
>+void TransposePlane(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height) {
>   int i = height;
> #if defined(HAS_TRANSPOSEWX16_MSA)
>-  void (*TransposeWx16)(const uint8* src, int src_stride, uint8* dst,
>+  void (*TransposeWx16)(const uint8_t* src, int src_stride, uint8_t* dst,
>                         int dst_stride, int width) = TransposeWx16_C;
> #else
>-  void (*TransposeWx8)(const uint8* src, int src_stride, uint8* dst,
>+  void (*TransposeWx8)(const uint8_t* src, int src_stride, uint8_t* dst,
>                        int dst_stride, int width) = TransposeWx8_C;
> #endif
> #if defined(HAS_TRANSPOSEWX8_NEON)
>@@ -57,16 +57,6 @@ void TransposePlane(const uint8* src,
>     }
>   }
> #endif
>-#if defined(HAS_TRANSPOSEWX8_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    if (IS_ALIGNED(width, 4) && IS_ALIGNED(src, 4) &&
>-        IS_ALIGNED(src_stride, 4)) {
>-      TransposeWx8 = TransposeWx8_Fast_DSPR2;
>-    } else {
>-      TransposeWx8 = TransposeWx8_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_TRANSPOSEWX16_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     TransposeWx16 = TransposeWx16_Any_MSA;
>@@ -100,9 +90,9 @@ void TransposePlane(const uint8* src,
> }
> 
> LIBYUV_API
>-void RotatePlane90(const uint8* src,
>+void RotatePlane90(const uint8_t* src,
>                    int src_stride,
>-                   uint8* dst,
>+                   uint8_t* dst,
>                    int dst_stride,
>                    int width,
>                    int height) {
>@@ -115,9 +105,9 @@ void RotatePlane90(const uint8* src,
> }
> 
> LIBYUV_API
>-void RotatePlane270(const uint8* src,
>+void RotatePlane270(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height) {
>@@ -130,20 +120,20 @@ void RotatePlane270(const uint8* src,
> }
> 
> LIBYUV_API
>-void RotatePlane180(const uint8* src,
>+void RotatePlane180(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height) {
>   // Swap first and last row and mirror the content. Uses a temporary row.
>   align_buffer_64(row, width);
>-  const uint8* src_bot = src + src_stride * (height - 1);
>-  uint8* dst_bot = dst + dst_stride * (height - 1);
>+  const uint8_t* src_bot = src + src_stride * (height - 1);
>+  uint8_t* dst_bot = dst + dst_stride * (height - 1);
>   int half_height = (height + 1) >> 1;
>   int y;
>-  void (*MirrorRow)(const uint8* src, uint8* dst, int width) = MirrorRow_C;
>-  void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
>+  void (*MirrorRow)(const uint8_t* src, uint8_t* dst, int width) = MirrorRow_C;
>+  void (*CopyRow)(const uint8_t* src, uint8_t* dst, int width) = CopyRow_C;
> #if defined(HAS_MIRRORROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     MirrorRow = MirrorRow_Any_NEON;
>@@ -168,14 +158,6 @@ void RotatePlane180(const uint8* src,
>     }
>   }
> #endif
>-// TODO(fbarchard): Mirror on mips handle unaligned memory.
>-#if defined(HAS_MIRRORROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src, 4) &&
>-      IS_ALIGNED(src_stride, 4) && IS_ALIGNED(dst, 4) &&
>-      IS_ALIGNED(dst_stride, 4)) {
>-    MirrorRow = MirrorRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_MIRRORROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     MirrorRow = MirrorRow_Any_MSA;
>@@ -204,11 +186,6 @@ void RotatePlane180(const uint8* src,
>     CopyRow = IS_ALIGNED(width, 32) ? CopyRow_NEON : CopyRow_Any_NEON;
>   }
> #endif
>-#if defined(HAS_COPYROW_MIPS)
>-  if (TestCpuFlag(kCpuHasMIPS)) {
>-    CopyRow = CopyRow_MIPS;
>-  }
>-#endif
> 
>   // Odd height will harmlessly mirror the middle row twice.
>   for (y = 0; y < half_height; ++y) {
>@@ -224,22 +201,22 @@ void RotatePlane180(const uint8* src,
> }
> 
> LIBYUV_API
>-void TransposeUV(const uint8* src,
>+void TransposeUV(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height) {
>   int i = height;
> #if defined(HAS_TRANSPOSEUVWX16_MSA)
>-  void (*TransposeUVWx16)(const uint8* src, int src_stride, uint8* dst_a,
>-                          int dst_stride_a, uint8* dst_b, int dst_stride_b,
>+  void (*TransposeUVWx16)(const uint8_t* src, int src_stride, uint8_t* dst_a,
>+                          int dst_stride_a, uint8_t* dst_b, int dst_stride_b,
>                           int width) = TransposeUVWx16_C;
> #else
>-  void (*TransposeUVWx8)(const uint8* src, int src_stride, uint8* dst_a,
>-                         int dst_stride_a, uint8* dst_b, int dst_stride_b,
>+  void (*TransposeUVWx8)(const uint8_t* src, int src_stride, uint8_t* dst_a,
>+                         int dst_stride_a, uint8_t* dst_b, int dst_stride_b,
>                          int width) = TransposeUVWx8_C;
> #endif
> #if defined(HAS_TRANSPOSEUVWX8_NEON)
>@@ -255,12 +232,6 @@ void TransposeUV(const uint8* src,
>     }
>   }
> #endif
>-#if defined(HAS_TRANSPOSEUVWX8_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 2) && IS_ALIGNED(src, 4) &&
>-      IS_ALIGNED(src_stride, 4)) {
>-    TransposeUVWx8 = TransposeUVWx8_DSPR2;
>-  }
>-#endif
> #if defined(HAS_TRANSPOSEUVWX16_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     TransposeUVWx16 = TransposeUVWx16_Any_MSA;
>@@ -299,11 +270,11 @@ void TransposeUV(const uint8* src,
> }
> 
> LIBYUV_API
>-void RotateUV90(const uint8* src,
>+void RotateUV90(const uint8_t* src,
>                 int src_stride,
>-                uint8* dst_a,
>+                uint8_t* dst_a,
>                 int dst_stride_a,
>-                uint8* dst_b,
>+                uint8_t* dst_b,
>                 int dst_stride_b,
>                 int width,
>                 int height) {
>@@ -315,11 +286,11 @@ void RotateUV90(const uint8* src,
> }
> 
> LIBYUV_API
>-void RotateUV270(const uint8* src,
>+void RotateUV270(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height) {
>@@ -334,17 +305,17 @@ void RotateUV270(const uint8* src,
> 
> // Rotate 180 is a horizontal and vertical flip.
> LIBYUV_API
>-void RotateUV180(const uint8* src,
>+void RotateUV180(const uint8_t* src,
>                  int src_stride,
>-                 uint8* dst_a,
>+                 uint8_t* dst_a,
>                  int dst_stride_a,
>-                 uint8* dst_b,
>+                 uint8_t* dst_b,
>                  int dst_stride_b,
>                  int width,
>                  int height) {
>   int i;
>-  void (*MirrorUVRow)(const uint8* src, uint8* dst_u, uint8* dst_v, int width) =
>-      MirrorUVRow_C;
>+  void (*MirrorUVRow)(const uint8_t* src, uint8_t* dst_u, uint8_t* dst_v,
>+                      int width) = MirrorUVRow_C;
> #if defined(HAS_MIRRORUVROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) {
>     MirrorUVRow = MirrorUVRow_NEON;
>@@ -355,12 +326,6 @@ void RotateUV180(const uint8* src,
>     MirrorUVRow = MirrorUVRow_SSSE3;
>   }
> #endif
>-#if defined(HAS_MIRRORUVROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src, 4) &&
>-      IS_ALIGNED(src_stride, 4)) {
>-    MirrorUVRow = MirrorUVRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_MIRRORUVROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA) && IS_ALIGNED(width, 32)) {
>     MirrorUVRow = MirrorUVRow_MSA;
>@@ -379,9 +344,9 @@ void RotateUV180(const uint8* src,
> }
> 
> LIBYUV_API
>-int RotatePlane(const uint8* src,
>+int RotatePlane(const uint8_t* src,
>                 int src_stride,
>-                uint8* dst,
>+                uint8_t* dst,
>                 int dst_stride,
>                 int width,
>                 int height,
>@@ -418,17 +383,17 @@ int RotatePlane(const uint8* src,
> }
> 
> LIBYUV_API
>-int I420Rotate(const uint8* src_y,
>+int I420Rotate(const uint8_t* src_y,
>                int src_stride_y,
>-               const uint8* src_u,
>+               const uint8_t* src_u,
>                int src_stride_u,
>-               const uint8* src_v,
>+               const uint8_t* src_v,
>                int src_stride_v,
>-               uint8* dst_y,
>+               uint8_t* dst_y,
>                int dst_stride_y,
>-               uint8* dst_u,
>+               uint8_t* dst_u,
>                int dst_stride_u,
>-               uint8* dst_v,
>+               uint8_t* dst_v,
>                int dst_stride_v,
>                int width,
>                int height,
>@@ -486,15 +451,15 @@ int I420Rotate(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int NV12ToI420Rotate(const uint8* src_y,
>+int NV12ToI420Rotate(const uint8_t* src_y,
>                      int src_stride_y,
>-                     const uint8* src_uv,
>+                     const uint8_t* src_uv,
>                      int src_stride_uv,
>-                     uint8* dst_y,
>+                     uint8_t* dst_y,
>                      int dst_stride_y,
>-                     uint8* dst_u,
>+                     uint8_t* dst_u,
>                      int dst_stride_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_v,
>                      int dst_stride_v,
>                      int width,
>                      int height,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_any.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_any.cc
>index 562096b926c2b5183725adeb29ea70725a2c06b6..c2752e6222c02df6824aa8511fc3d0c5832de3a7 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_any.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_any.cc
>@@ -19,8 +19,8 @@ extern "C" {
> #endif
> 
> #define TANY(NAMEANY, TPOS_SIMD, MASK)                                        \
>-  void NAMEANY(const uint8* src, int src_stride, uint8* dst, int dst_stride,  \
>-               int width) {                                                   \
>+  void NAMEANY(const uint8_t* src, int src_stride, uint8_t* dst,              \
>+               int dst_stride, int width) {                                   \
>     int r = width & MASK;                                                     \
>     int n = width - r;                                                        \
>     if (n > 0) {                                                              \
>@@ -38,17 +38,15 @@ TANY(TransposeWx8_Any_SSSE3, TransposeWx8_SSSE3, 7)
> #ifdef HAS_TRANSPOSEWX8_FAST_SSSE3
> TANY(TransposeWx8_Fast_Any_SSSE3, TransposeWx8_Fast_SSSE3, 15)
> #endif
>-#ifdef HAS_TRANSPOSEWX8_DSPR2
>-TANY(TransposeWx8_Any_DSPR2, TransposeWx8_DSPR2, 7)
>-#endif
> #ifdef HAS_TRANSPOSEWX16_MSA
> TANY(TransposeWx16_Any_MSA, TransposeWx16_MSA, 15)
> #endif
> #undef TANY
> 
> #define TUVANY(NAMEANY, TPOS_SIMD, MASK)                                       \
>-  void NAMEANY(const uint8* src, int src_stride, uint8* dst_a,                 \
>-               int dst_stride_a, uint8* dst_b, int dst_stride_b, int width) {  \
>+  void NAMEANY(const uint8_t* src, int src_stride, uint8_t* dst_a,             \
>+               int dst_stride_a, uint8_t* dst_b, int dst_stride_b,             \
>+               int width) {                                                    \
>     int r = width & MASK;                                                      \
>     int n = width - r;                                                         \
>     if (n > 0) {                                                               \
>@@ -64,9 +62,6 @@ TUVANY(TransposeUVWx8_Any_NEON, TransposeUVWx8_NEON, 7)
> #ifdef HAS_TRANSPOSEUVWX8_SSE2
> TUVANY(TransposeUVWx8_Any_SSE2, TransposeUVWx8_SSE2, 7)
> #endif
>-#ifdef HAS_TRANSPOSEUVWX8_DSPR2
>-TUVANY(TransposeUVWx8_Any_DSPR2, TransposeUVWx8_DSPR2, 7)
>-#endif
> #ifdef HAS_TRANSPOSEUVWX16_MSA
> TUVANY(TransposeUVWx16_Any_MSA, TransposeUVWx16_MSA, 7)
> #endif
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_argb.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_argb.cc
>index ede4eafa6c2c67f017b8742617d700047f44a01d..5a6e05376f17690040900a2c49afb13344828f50 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_argb.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_argb.cc
>@@ -14,113 +14,102 @@
> #include "libyuv/cpu_id.h"
> #include "libyuv/planar_functions.h"
> #include "libyuv/row.h"
>+#include "libyuv/scale_row.h" /* for ScaleARGBRowDownEven_ */
> 
> #ifdef __cplusplus
> namespace libyuv {
> extern "C" {
> #endif
> 
>-// ARGBScale has a function to copy pixels to a row, striding each source
>-// pixel by a constant.
>-#if !defined(LIBYUV_DISABLE_X86) &&                          \
>-    (defined(_M_IX86) ||                                     \
>-     (defined(__x86_64__) && !defined(__native_client__)) || \
>-     defined(__i386__))
>-#define HAS_SCALEARGBROWDOWNEVEN_SSE2
>-void ScaleARGBRowDownEven_SSE2(const uint8* src_ptr,
>-                               int src_stride,
>-                               int src_stepx,
>-                               uint8* dst_ptr,
>-                               int dst_width);
>-#endif
>-#if !defined(LIBYUV_DISABLE_NEON) && !defined(__native_client__) && \
>-    (defined(__ARM_NEON__) || defined(LIBYUV_NEON) || defined(__aarch64__))
>-#define HAS_SCALEARGBROWDOWNEVEN_NEON
>-void ScaleARGBRowDownEven_NEON(const uint8* src_ptr,
>-                               int src_stride,
>-                               int src_stepx,
>-                               uint8* dst_ptr,
>-                               int dst_width);
>-#endif
>-
>-void ScaleARGBRowDownEven_C(const uint8* src_ptr,
>-                            int,
>-                            int src_stepx,
>-                            uint8* dst_ptr,
>-                            int dst_width);
>-
>-static void ARGBTranspose(const uint8* src,
>-                          int src_stride,
>-                          uint8* dst,
>-                          int dst_stride,
>+static void ARGBTranspose(const uint8_t* src_argb,
>+                          int src_stride_argb,
>+                          uint8_t* dst_argb,
>+                          int dst_stride_argb,
>                           int width,
>                           int height) {
>   int i;
>-  int src_pixel_step = src_stride >> 2;
>-  void (*ScaleARGBRowDownEven)(const uint8* src_ptr, int src_stride,
>-                               int src_step, uint8* dst_ptr, int dst_width) =
>-      ScaleARGBRowDownEven_C;
>+  int src_pixel_step = src_stride_argb >> 2;
>+  void (*ScaleARGBRowDownEven)(
>+      const uint8_t* src_argb, ptrdiff_t src_stride_argb, int src_step,
>+      uint8_t* dst_argb, int dst_width) = ScaleARGBRowDownEven_C;
> #if defined(HAS_SCALEARGBROWDOWNEVEN_SSE2)
>-  if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(height, 4)) {  // Width of dest.
>-    ScaleARGBRowDownEven = ScaleARGBRowDownEven_SSE2;
>+  if (TestCpuFlag(kCpuHasSSE2)) {
>+    ScaleARGBRowDownEven = ScaleARGBRowDownEven_Any_SSE2;
>+    if (IS_ALIGNED(height, 4)) {  // Width of dest.
>+      ScaleARGBRowDownEven = ScaleARGBRowDownEven_SSE2;
>+    }
>   }
> #endif
> #if defined(HAS_SCALEARGBROWDOWNEVEN_NEON)
>-  if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(height, 4)) {  // Width of dest.
>-    ScaleARGBRowDownEven = ScaleARGBRowDownEven_NEON;
>+  if (TestCpuFlag(kCpuHasNEON)) {
>+    ScaleARGBRowDownEven = ScaleARGBRowDownEven_Any_NEON;
>+    if (IS_ALIGNED(height, 4)) {  // Width of dest.
>+      ScaleARGBRowDownEven = ScaleARGBRowDownEven_NEON;
>+    }
>+  }
>+#endif
>+#if defined(HAS_SCALEARGBROWDOWNEVEN_MSA)
>+  if (TestCpuFlag(kCpuHasMSA)) {
>+    ScaleARGBRowDownEven = ScaleARGBRowDownEven_Any_MSA;
>+    if (IS_ALIGNED(height, 4)) {  // Width of dest.
>+      ScaleARGBRowDownEven = ScaleARGBRowDownEven_MSA;
>+    }
>   }
> #endif
> 
>   for (i = 0; i < width; ++i) {  // column of source to row of dest.
>-    ScaleARGBRowDownEven(src, 0, src_pixel_step, dst, height);
>-    dst += dst_stride;
>-    src += 4;
>+    ScaleARGBRowDownEven(src_argb, 0, src_pixel_step, dst_argb, height);
>+    dst_argb += dst_stride_argb;
>+    src_argb += 4;
>   }
> }
> 
>-void ARGBRotate90(const uint8* src,
>-                  int src_stride,
>-                  uint8* dst,
>-                  int dst_stride,
>+void ARGBRotate90(const uint8_t* src_argb,
>+                  int src_stride_argb,
>+                  uint8_t* dst_argb,
>+                  int dst_stride_argb,
>                   int width,
>                   int height) {
>   // Rotate by 90 is a ARGBTranspose with the source read
>   // from bottom to top. So set the source pointer to the end
>   // of the buffer and flip the sign of the source stride.
>-  src += src_stride * (height - 1);
>-  src_stride = -src_stride;
>-  ARGBTranspose(src, src_stride, dst, dst_stride, width, height);
>+  src_argb += src_stride_argb * (height - 1);
>+  src_stride_argb = -src_stride_argb;
>+  ARGBTranspose(src_argb, src_stride_argb, dst_argb, dst_stride_argb, width,
>+                height);
> }
> 
>-void ARGBRotate270(const uint8* src,
>-                   int src_stride,
>-                   uint8* dst,
>-                   int dst_stride,
>+void ARGBRotate270(const uint8_t* src_argb,
>+                   int src_stride_argb,
>+                   uint8_t* dst_argb,
>+                   int dst_stride_argb,
>                    int width,
>                    int height) {
>   // Rotate by 270 is a ARGBTranspose with the destination written
>   // from bottom to top. So set the destination pointer to the end
>   // of the buffer and flip the sign of the destination stride.
>-  dst += dst_stride * (width - 1);
>-  dst_stride = -dst_stride;
>-  ARGBTranspose(src, src_stride, dst, dst_stride, width, height);
>+  dst_argb += dst_stride_argb * (width - 1);
>+  dst_stride_argb = -dst_stride_argb;
>+  ARGBTranspose(src_argb, src_stride_argb, dst_argb, dst_stride_argb, width,
>+                height);
> }
> 
>-void ARGBRotate180(const uint8* src,
>-                   int src_stride,
>-                   uint8* dst,
>-                   int dst_stride,
>+void ARGBRotate180(const uint8_t* src_argb,
>+                   int src_stride_argb,
>+                   uint8_t* dst_argb,
>+                   int dst_stride_argb,
>                    int width,
>                    int height) {
>   // Swap first and last row and mirror the content. Uses a temporary row.
>   align_buffer_64(row, width * 4);
>-  const uint8* src_bot = src + src_stride * (height - 1);
>-  uint8* dst_bot = dst + dst_stride * (height - 1);
>+  const uint8_t* src_bot = src_argb + src_stride_argb * (height - 1);
>+  uint8_t* dst_bot = dst_argb + dst_stride_argb * (height - 1);
>   int half_height = (height + 1) >> 1;
>   int y;
>-  void (*ARGBMirrorRow)(const uint8* src, uint8* dst, int width) =
>+  void (*ARGBMirrorRow)(const uint8_t* src_argb, uint8_t* dst_argb, int width) =
>       ARGBMirrorRow_C;
>-  void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
>+  void (*CopyRow)(const uint8_t* src_argb, uint8_t* dst_argb, int width) =
>+      CopyRow_C;
> #if defined(HAS_ARGBMIRRORROW_NEON)
>   if (TestCpuFlag(kCpuHasNEON)) {
>     ARGBMirrorRow = ARGBMirrorRow_Any_NEON;
>@@ -173,29 +162,24 @@ void ARGBRotate180(const uint8* src,
>     CopyRow = IS_ALIGNED(width * 4, 32) ? CopyRow_NEON : CopyRow_Any_NEON;
>   }
> #endif
>-#if defined(HAS_COPYROW_MIPS)
>-  if (TestCpuFlag(kCpuHasMIPS)) {
>-    CopyRow = CopyRow_MIPS;
>-  }
>-#endif
> 
>   // Odd height will harmlessly mirror the middle row twice.
>   for (y = 0; y < half_height; ++y) {
>-    ARGBMirrorRow(src, row, width);      // Mirror first row into a buffer
>-    ARGBMirrorRow(src_bot, dst, width);  // Mirror last row into first row
>-    CopyRow(row, dst_bot, width * 4);    // Copy first mirrored row into last
>-    src += src_stride;
>-    dst += dst_stride;
>-    src_bot -= src_stride;
>-    dst_bot -= dst_stride;
>+    ARGBMirrorRow(src_argb, row, width);      // Mirror first row into a buffer
>+    ARGBMirrorRow(src_bot, dst_argb, width);  // Mirror last row into first row
>+    CopyRow(row, dst_bot, width * 4);  // Copy first mirrored row into last
>+    src_argb += src_stride_argb;
>+    dst_argb += dst_stride_argb;
>+    src_bot -= src_stride_argb;
>+    dst_bot -= dst_stride_argb;
>   }
>   free_aligned_buffer_64(row);
> }
> 
> LIBYUV_API
>-int ARGBRotate(const uint8* src_argb,
>+int ARGBRotate(const uint8_t* src_argb,
>                int src_stride_argb,
>-               uint8* dst_argb,
>+               uint8_t* dst_argb,
>                int dst_stride_argb,
>                int width,
>                int height,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_common.cc
>index 89357e732d28e4174b2acf6462c2f954726b3328..ff212adebc4dc67f04137112cba4f1c7611c839b 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_common.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_common.cc
>@@ -16,9 +16,9 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-void TransposeWx8_C(const uint8* src,
>+void TransposeWx8_C(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width) {
>   int i;
>@@ -36,11 +36,11 @@ void TransposeWx8_C(const uint8* src,
>   }
> }
> 
>-void TransposeUVWx8_C(const uint8* src,
>+void TransposeUVWx8_C(const uint8_t* src,
>                       int src_stride,
>-                      uint8* dst_a,
>+                      uint8_t* dst_a,
>                       int dst_stride_a,
>-                      uint8* dst_b,
>+                      uint8_t* dst_b,
>                       int dst_stride_b,
>                       int width) {
>   int i;
>@@ -67,9 +67,9 @@ void TransposeUVWx8_C(const uint8* src,
>   }
> }
> 
>-void TransposeWxH_C(const uint8* src,
>+void TransposeWxH_C(const uint8_t* src,
>                     int src_stride,
>-                    uint8* dst,
>+                    uint8_t* dst,
>                     int dst_stride,
>                     int width,
>                     int height) {
>@@ -82,11 +82,11 @@ void TransposeWxH_C(const uint8* src,
>   }
> }
> 
>-void TransposeUVWxH_C(const uint8* src,
>+void TransposeUVWxH_C(const uint8_t* src,
>                       int src_stride,
>-                      uint8* dst_a,
>+                      uint8_t* dst_a,
>                       int dst_stride_a,
>-                      uint8* dst_b,
>+                      uint8_t* dst_b,
>                       int dst_stride_b,
>                       int width,
>                       int height) {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_gcc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_gcc.cc
>index 74b48ac4084c1d39c7a62d47bac584935f218b67..04e19e29eefba590dbb8149bad172ce6c16f996a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_gcc.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_gcc.cc
>@@ -22,9 +22,9 @@ extern "C" {
> 
> // Transpose 8x8. 32 or 64 bit, but not NaCL for 64 bit.
> #if defined(HAS_TRANSPOSEWX8_SSSE3)
>-void TransposeWx8_SSSE3(const uint8* src,
>+void TransposeWx8_SSSE3(const uint8_t* src,
>                         int src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_stride,
>                         int width) {
>   asm volatile(
>@@ -112,9 +112,9 @@ void TransposeWx8_SSSE3(const uint8* src,
> 
> // Transpose 16x8. 64 bit
> #if defined(HAS_TRANSPOSEWX8_FAST_SSSE3)
>-void TransposeWx8_Fast_SSSE3(const uint8* src,
>+void TransposeWx8_Fast_SSSE3(const uint8_t* src,
>                              int src_stride,
>-                             uint8* dst,
>+                             uint8_t* dst,
>                              int dst_stride,
>                              int width) {
>   asm volatile(
>@@ -255,11 +255,11 @@ void TransposeWx8_Fast_SSSE3(const uint8* src,
> 
> // Transpose UV 8x8.  64 bit.
> #if defined(HAS_TRANSPOSEUVWX8_SSE2)
>-void TransposeUVWx8_SSE2(const uint8* src,
>+void TransposeUVWx8_SSE2(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width) {
>   asm volatile(
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_msa.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_msa.cc
>index 8907765aba70cad2a99858765b57cc3c8ab3fe44..99bdca65b32c72ea007ef69188930b5a58127e17 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_msa.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_msa.cc
>@@ -51,9 +51,9 @@ extern "C" {
>     out3 = (v16u8)__msa_ilvl_d((v2i64)in3, (v2i64)in2);     \
>   }
> 
>-void TransposeWx16_C(const uint8* src,
>+void TransposeWx16_C(const uint8_t* src,
>                      int src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_stride,
>                      int width) {
>   TransposeWx8_C(src, src_stride, dst, dst_stride, width);
>@@ -61,11 +61,11 @@ void TransposeWx16_C(const uint8* src,
>                  width);
> }
> 
>-void TransposeUVWx16_C(const uint8* src,
>+void TransposeUVWx16_C(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst_a,
>+                       uint8_t* dst_a,
>                        int dst_stride_a,
>-                       uint8* dst_b,
>+                       uint8_t* dst_b,
>                        int dst_stride_b,
>                        int width) {
>   TransposeUVWx8_C(src, src_stride, dst_a, dst_stride_a, dst_b, dst_stride_b,
>@@ -74,13 +74,13 @@ void TransposeUVWx16_C(const uint8* src,
>                    dst_stride_a, (dst_b + 8), dst_stride_b, width);
> }
> 
>-void TransposeWx16_MSA(const uint8* src,
>+void TransposeWx16_MSA(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width) {
>   int x;
>-  const uint8* s;
>+  const uint8_t* s;
>   v16u8 src0, src1, src2, src3, dst0, dst1, dst2, dst3, vec0, vec1, vec2, vec3;
>   v16u8 reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
>   v16u8 res0, res1, res2, res3, res4, res5, res6, res7, res8, res9;
>@@ -153,15 +153,15 @@ void TransposeWx16_MSA(const uint8* src,
>   }
> }
> 
>-void TransposeUVWx16_MSA(const uint8* src,
>+void TransposeUVWx16_MSA(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width) {
>   int x;
>-  const uint8* s;
>+  const uint8_t* s;
>   v16u8 src0, src1, src2, src3, dst0, dst1, dst2, dst3, vec0, vec1, vec2, vec3;
>   v16u8 reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
>   v16u8 res0, res1, res2, res3, res4, res5, res6, res7, res8, res9;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon.cc
>index d9bbc78cdab6d5535534825eb9e7268b24d74589..fdc0dd476c6d2933d8df0f251135dc0880eacfab 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon.cc
>@@ -21,15 +21,15 @@ extern "C" {
> #if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
>     !defined(__aarch64__)
> 
>-static uvec8 kVTbl4x4Transpose = {0, 4, 8,  12, 1, 5, 9,  13,
>-                                  2, 6, 10, 14, 3, 7, 11, 15};
>+static const uvec8 kVTbl4x4Transpose = {0, 4, 8,  12, 1, 5, 9,  13,
>+                                        2, 6, 10, 14, 3, 7, 11, 15};
> 
>-void TransposeWx8_NEON(const uint8* src,
>+void TransposeWx8_NEON(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width) {
>-  const uint8* src_temp;
>+  const uint8_t* src_temp;
>   asm volatile(
>       // loops are on blocks of 8. loop will stop when
>       // counter gets to or below 0. starting the counter
>@@ -189,17 +189,17 @@ void TransposeWx8_NEON(const uint8* src,
>       : "memory", "cc", "q0", "q1", "q2", "q3");
> }
> 
>-static uvec8 kVTbl4x4TransposeDi = {0, 8,  1, 9,  2, 10, 3, 11,
>-                                    4, 12, 5, 13, 6, 14, 7, 15};
>+static const uvec8 kVTbl4x4TransposeDi = {0, 8,  1, 9,  2, 10, 3, 11,
>+                                          4, 12, 5, 13, 6, 14, 7, 15};
> 
>-void TransposeUVWx8_NEON(const uint8* src,
>+void TransposeUVWx8_NEON(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width) {
>-  const uint8* src_temp;
>+  const uint8_t* src_temp;
>   asm volatile(
>       // loops are on blocks of 8. loop will stop when
>       // counter gets to or below 0. starting the counter
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon64.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon64.cc
>index 59db7f9f3da9af88460ade2f70f47a989ff628ec..f469baacf689b027c429da913d59b8a9f9a97ee3 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon64.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_neon64.cc
>@@ -21,15 +21,15 @@ extern "C" {
> // This module is for GCC Neon armv8 64 bit.
> #if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
> 
>-static uvec8 kVTbl4x4Transpose = {0, 4, 8,  12, 1, 5, 9,  13,
>-                                  2, 6, 10, 14, 3, 7, 11, 15};
>+static const uvec8 kVTbl4x4Transpose = {0, 4, 8,  12, 1, 5, 9,  13,
>+                                        2, 6, 10, 14, 3, 7, 11, 15};
> 
>-void TransposeWx8_NEON(const uint8* src,
>+void TransposeWx8_NEON(const uint8_t* src,
>                        int src_stride,
>-                       uint8* dst,
>+                       uint8_t* dst,
>                        int dst_stride,
>                        int width) {
>-  const uint8* src_temp;
>+  const uint8_t* src_temp;
>   asm volatile(
>       // loops are on blocks of 8. loop will stop when
>       // counter gets to or below 0. starting the counter
>@@ -196,18 +196,18 @@ void TransposeWx8_NEON(const uint8* src,
>         "v17", "v18", "v19", "v20", "v21", "v22", "v23");
> }
> 
>-static uint8 kVTbl4x4TransposeDi[32] = {
>+static const uint8_t kVTbl4x4TransposeDi[32] = {
>     0, 16, 32, 48, 2, 18, 34, 50, 4, 20, 36, 52, 6, 22, 38, 54,
>     1, 17, 33, 49, 3, 19, 35, 51, 5, 21, 37, 53, 7, 23, 39, 55};
> 
>-void TransposeUVWx8_NEON(const uint8* src,
>+void TransposeUVWx8_NEON(const uint8_t* src,
>                          int src_stride,
>-                         uint8* dst_a,
>+                         uint8_t* dst_a,
>                          int dst_stride_a,
>-                         uint8* dst_b,
>+                         uint8_t* dst_b,
>                          int dst_stride_b,
>                          int width) {
>-  const uint8* src_temp;
>+  const uint8_t* src_temp;
>   asm volatile(
>       // loops are on blocks of 8. loop will stop when
>       // counter gets to or below 0. starting the counter
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_win.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_win.cc
>index fb052f6521224fa15e7e07aa32bb925bd421c437..e887dd525c753a76f2257be9d2059edb115cee1f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_win.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/rotate_win.cc
>@@ -19,9 +19,9 @@ extern "C" {
> // This module is for 32 bit Visual C x86 and clangcl
> #if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
> 
>-__declspec(naked) void TransposeWx8_SSSE3(const uint8* src,
>+__declspec(naked) void TransposeWx8_SSSE3(const uint8_t* src,
>                                           int src_stride,
>-                                          uint8* dst,
>+                                          uint8_t* dst,
>                                           int dst_stride,
>                                           int width) {
>   __asm {
>@@ -112,11 +112,11 @@ __declspec(naked) void TransposeWx8_SSSE3(const uint8* src,
>   }
> }
> 
>-__declspec(naked) void TransposeUVWx8_SSE2(const uint8* src,
>+__declspec(naked) void TransposeUVWx8_SSE2(const uint8_t* src,
>                                            int src_stride,
>-                                           uint8* dst_a,
>+                                           uint8_t* dst_a,
>                                            int dst_stride_a,
>-                                           uint8* dst_b,
>+                                           uint8_t* dst_b,
>                                            int dst_stride_b,
>                                            int w) {
>   __asm {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_any.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_any.cc
>index 8b31ac9fccc07b1397e125b743ae3ddb3c141542..cc5914dd29d0d0106177e583598b87053f6dc721 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_any.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_any.cc
>@@ -31,25 +31,25 @@ extern "C" {
> #define SS(width, shift) (((width) + (1 << (shift)) - 1) >> (shift))
> 
> // Any 4 planes to 1 with yuvconstants
>-#define ANY41C(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, BPP, MASK)            \
>-  void NAMEANY(const uint8* y_buf, const uint8* u_buf, const uint8* v_buf, \
>-               const uint8* a_buf, uint8* dst_ptr,                         \
>-               const struct YuvConstants* yuvconstants, int width) {       \
>-    SIMD_ALIGNED(uint8 temp[64 * 5]);                                      \
>-    memset(temp, 0, 64 * 4); /* for msan */                                \
>-    int r = width & MASK;                                                  \
>-    int n = width & ~MASK;                                                 \
>-    if (n > 0) {                                                           \
>-      ANY_SIMD(y_buf, u_buf, v_buf, a_buf, dst_ptr, yuvconstants, n);      \
>-    }                                                                      \
>-    memcpy(temp, y_buf + n, r);                                            \
>-    memcpy(temp + 64, u_buf + (n >> UVSHIFT), SS(r, UVSHIFT));             \
>-    memcpy(temp + 128, v_buf + (n >> UVSHIFT), SS(r, UVSHIFT));            \
>-    memcpy(temp + 192, a_buf + n, r);                                      \
>-    ANY_SIMD(temp, temp + 64, temp + 128, temp + 192, temp + 256,          \
>-             yuvconstants, MASK + 1);                                      \
>-    memcpy(dst_ptr + (n >> DUVSHIFT) * BPP, temp + 256,                    \
>-           SS(r, DUVSHIFT) * BPP);                                         \
>+#define ANY41C(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, BPP, MASK)              \
>+  void NAMEANY(const uint8_t* y_buf, const uint8_t* u_buf,                   \
>+               const uint8_t* v_buf, const uint8_t* a_buf, uint8_t* dst_ptr, \
>+               const struct YuvConstants* yuvconstants, int width) {         \
>+    SIMD_ALIGNED(uint8_t temp[64 * 5]);                                      \
>+    memset(temp, 0, 64 * 4); /* for msan */                                  \
>+    int r = width & MASK;                                                    \
>+    int n = width & ~MASK;                                                   \
>+    if (n > 0) {                                                             \
>+      ANY_SIMD(y_buf, u_buf, v_buf, a_buf, dst_ptr, yuvconstants, n);        \
>+    }                                                                        \
>+    memcpy(temp, y_buf + n, r);                                              \
>+    memcpy(temp + 64, u_buf + (n >> UVSHIFT), SS(r, UVSHIFT));               \
>+    memcpy(temp + 128, v_buf + (n >> UVSHIFT), SS(r, UVSHIFT));              \
>+    memcpy(temp + 192, a_buf + n, r);                                        \
>+    ANY_SIMD(temp, temp + 64, temp + 128, temp + 192, temp + 256,            \
>+             yuvconstants, MASK + 1);                                        \
>+    memcpy(dst_ptr + (n >> DUVSHIFT) * BPP, temp + 256,                      \
>+           SS(r, DUVSHIFT) * BPP);                                           \
>   }
> 
> #ifdef HAS_I422ALPHATOARGBROW_SSSE3
>@@ -67,22 +67,22 @@ ANY41C(I422AlphaToARGBRow_Any_MSA, I422AlphaToARGBRow_MSA, 1, 0, 4, 7)
> #undef ANY41C
> 
> // Any 3 planes to 1.
>-#define ANY31(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, BPP, MASK)             \
>-  void NAMEANY(const uint8* y_buf, const uint8* u_buf, const uint8* v_buf, \
>-               uint8* dst_ptr, int width) {                                \
>-    SIMD_ALIGNED(uint8 temp[64 * 4]);                                      \
>-    memset(temp, 0, 64 * 3); /* for YUY2 and msan */                       \
>-    int r = width & MASK;                                                  \
>-    int n = width & ~MASK;                                                 \
>-    if (n > 0) {                                                           \
>-      ANY_SIMD(y_buf, u_buf, v_buf, dst_ptr, n);                           \
>-    }                                                                      \
>-    memcpy(temp, y_buf + n, r);                                            \
>-    memcpy(temp + 64, u_buf + (n >> UVSHIFT), SS(r, UVSHIFT));             \
>-    memcpy(temp + 128, v_buf + (n >> UVSHIFT), SS(r, UVSHIFT));            \
>-    ANY_SIMD(temp, temp + 64, temp + 128, temp + 192, MASK + 1);           \
>-    memcpy(dst_ptr + (n >> DUVSHIFT) * BPP, temp + 192,                    \
>-           SS(r, DUVSHIFT) * BPP);                                         \
>+#define ANY31(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, BPP, MASK)      \
>+  void NAMEANY(const uint8_t* y_buf, const uint8_t* u_buf,          \
>+               const uint8_t* v_buf, uint8_t* dst_ptr, int width) { \
>+    SIMD_ALIGNED(uint8_t temp[64 * 4]);                             \
>+    memset(temp, 0, 64 * 3); /* for YUY2 and msan */                \
>+    int r = width & MASK;                                           \
>+    int n = width & ~MASK;                                          \
>+    if (n > 0) {                                                    \
>+      ANY_SIMD(y_buf, u_buf, v_buf, dst_ptr, n);                    \
>+    }                                                               \
>+    memcpy(temp, y_buf + n, r);                                     \
>+    memcpy(temp + 64, u_buf + (n >> UVSHIFT), SS(r, UVSHIFT));      \
>+    memcpy(temp + 128, v_buf + (n >> UVSHIFT), SS(r, UVSHIFT));     \
>+    ANY_SIMD(temp, temp + 64, temp + 128, temp + 192, MASK + 1);    \
>+    memcpy(dst_ptr + (n >> DUVSHIFT) * BPP, temp + 192,             \
>+           SS(r, DUVSHIFT) * BPP);                                  \
>   }
> 
> // Merge functions.
>@@ -96,6 +96,10 @@ ANY31(MergeRGBRow_Any_NEON, MergeRGBRow_NEON, 0, 0, 3, 15)
> ANY31(I422ToYUY2Row_Any_SSE2, I422ToYUY2Row_SSE2, 1, 1, 4, 15)
> ANY31(I422ToUYVYRow_Any_SSE2, I422ToUYVYRow_SSE2, 1, 1, 4, 15)
> #endif
>+#ifdef HAS_I422TOYUY2ROW_AVX2
>+ANY31(I422ToYUY2Row_Any_AVX2, I422ToYUY2Row_AVX2, 1, 1, 4, 31)
>+ANY31(I422ToUYVYRow_Any_AVX2, I422ToUYVYRow_AVX2, 1, 1, 4, 31)
>+#endif
> #ifdef HAS_I422TOYUY2ROW_NEON
> ANY31(I422ToYUY2Row_Any_NEON, I422ToYUY2Row_NEON, 1, 1, 4, 15)
> #endif
>@@ -120,10 +124,10 @@ ANY31(BlendPlaneRow_Any_SSSE3, BlendPlaneRow_SSSE3, 0, 0, 1, 7)
> // on arm that subsamples 444 to 422 internally.
> // Any 3 planes to 1 with yuvconstants
> #define ANY31C(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, BPP, MASK)                \
>-  void NAMEANY(const uint8* y_buf, const uint8* u_buf, const uint8* v_buf,     \
>-               uint8* dst_ptr, const struct YuvConstants* yuvconstants,        \
>-               int width) {                                                    \
>-    SIMD_ALIGNED(uint8 temp[64 * 4]);                                          \
>+  void NAMEANY(const uint8_t* y_buf, const uint8_t* u_buf,                     \
>+               const uint8_t* v_buf, uint8_t* dst_ptr,                         \
>+               const struct YuvConstants* yuvconstants, int width) {           \
>+    SIMD_ALIGNED(uint8_t temp[64 * 4]);                                        \
>     memset(temp, 0, 64 * 3); /* for YUY2 and msan */                           \
>     int r = width & MASK;                                                      \
>     int n = width & ~MASK;                                                     \
>@@ -145,6 +149,12 @@ ANY31(BlendPlaneRow_Any_SSSE3, BlendPlaneRow_SSSE3, 0, 0, 1, 7)
> #ifdef HAS_I422TOARGBROW_SSSE3
> ANY31C(I422ToARGBRow_Any_SSSE3, I422ToARGBRow_SSSE3, 1, 0, 4, 7)
> #endif
>+#ifdef HAS_I422TOAR30ROW_SSSE3
>+ANY31C(I422ToAR30Row_Any_SSSE3, I422ToAR30Row_SSSE3, 1, 0, 4, 7)
>+#endif
>+#ifdef HAS_I422TOAR30ROW_AVX2
>+ANY31C(I422ToAR30Row_Any_AVX2, I422ToAR30Row_AVX2, 1, 0, 4, 15)
>+#endif
> #ifdef HAS_I444TOARGBROW_SSSE3
> ANY31C(I444ToARGBRow_Any_SSSE3, I444ToARGBRow_SSSE3, 0, 0, 4, 7)
> ANY31C(I422ToRGBARow_Any_SSSE3, I422ToRGBARow_SSSE3, 1, 0, 4, 7)
>@@ -183,12 +193,6 @@ ANY31C(I422ToARGB4444Row_Any_NEON, I422ToARGB4444Row_NEON, 1, 0, 2, 7)
> ANY31C(I422ToARGB1555Row_Any_NEON, I422ToARGB1555Row_NEON, 1, 0, 2, 7)
> ANY31C(I422ToRGB565Row_Any_NEON, I422ToRGB565Row_NEON, 1, 0, 2, 7)
> #endif
>-#ifdef HAS_I422TOARGBROW_DSPR2
>-ANY31C(I444ToARGBRow_Any_DSPR2, I444ToARGBRow_DSPR2, 0, 0, 4, 7)
>-ANY31C(I422ToARGBRow_Any_DSPR2, I422ToARGBRow_DSPR2, 1, 0, 4, 7)
>-ANY31C(I422ToARGB4444Row_Any_DSPR2, I422ToARGB4444Row_DSPR2, 1, 0, 2, 7)
>-ANY31C(I422ToARGB1555Row_Any_DSPR2, I422ToARGB1555Row_DSPR2, 1, 0, 2, 7)
>-#endif
> #ifdef HAS_I422TOARGBROW_MSA
> ANY31C(I444ToARGBRow_Any_MSA, I444ToARGBRow_MSA, 0, 0, 4, 7)
> ANY31C(I422ToARGBRow_Any_MSA, I422ToARGBRow_MSA, 1, 0, 4, 7)
>@@ -200,22 +204,57 @@ ANY31C(I422ToRGB565Row_Any_MSA, I422ToRGB565Row_MSA, 1, 0, 2, 7)
> #endif
> #undef ANY31C
> 
>+// Any 3 planes of 16 bit to 1 with yuvconstants
>+// TODO(fbarchard): consider sharing this code with ANY31C
>+#define ANY31CT(NAMEANY, ANY_SIMD, UVSHIFT, DUVSHIFT, T, SBPP, BPP, MASK) \
>+  void NAMEANY(const T* y_buf, const T* u_buf, const T* v_buf,            \
>+               uint8_t* dst_ptr, const struct YuvConstants* yuvconstants, \
>+               int width) {                                               \
>+    SIMD_ALIGNED(T temp[16 * 3]);                                         \
>+    SIMD_ALIGNED(uint8_t out[64]);                                        \
>+    memset(temp, 0, 16 * 3 * SBPP); /* for YUY2 and msan */               \
>+    int r = width & MASK;                                                 \
>+    int n = width & ~MASK;                                                \
>+    if (n > 0) {                                                          \
>+      ANY_SIMD(y_buf, u_buf, v_buf, dst_ptr, yuvconstants, n);            \
>+    }                                                                     \
>+    memcpy(temp, y_buf + n, r * SBPP);                                    \
>+    memcpy(temp + 16, u_buf + (n >> UVSHIFT), SS(r, UVSHIFT) * SBPP);     \
>+    memcpy(temp + 32, v_buf + (n >> UVSHIFT), SS(r, UVSHIFT) * SBPP);     \
>+    ANY_SIMD(temp, temp + 16, temp + 32, out, yuvconstants, MASK + 1);    \
>+    memcpy(dst_ptr + (n >> DUVSHIFT) * BPP, out, SS(r, DUVSHIFT) * BPP);  \
>+  }
>+
>+#ifdef HAS_I210TOAR30ROW_SSSE3
>+ANY31CT(I210ToAR30Row_Any_SSSE3, I210ToAR30Row_SSSE3, 1, 0, uint16_t, 2, 4, 7)
>+#endif
>+#ifdef HAS_I210TOARGBROW_SSSE3
>+ANY31CT(I210ToARGBRow_Any_SSSE3, I210ToARGBRow_SSSE3, 1, 0, uint16_t, 2, 4, 7)
>+#endif
>+#ifdef HAS_I210TOARGBROW_AVX2
>+ANY31CT(I210ToARGBRow_Any_AVX2, I210ToARGBRow_AVX2, 1, 0, uint16_t, 2, 4, 15)
>+#endif
>+#ifdef HAS_I210TOAR30ROW_AVX2
>+ANY31CT(I210ToAR30Row_Any_AVX2, I210ToAR30Row_AVX2, 1, 0, uint16_t, 2, 4, 15)
>+#endif
>+#undef ANY31CT
>+
> // Any 2 planes to 1.
>-#define ANY21(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, SBPP2, BPP, MASK)       \
>-  void NAMEANY(const uint8* y_buf, const uint8* uv_buf, uint8* dst_ptr, \
>-               int width) {                                             \
>-    SIMD_ALIGNED(uint8 temp[64 * 3]);                                   \
>-    memset(temp, 0, 64 * 2); /* for msan */                             \
>-    int r = width & MASK;                                               \
>-    int n = width & ~MASK;                                              \
>-    if (n > 0) {                                                        \
>-      ANY_SIMD(y_buf, uv_buf, dst_ptr, n);                              \
>-    }                                                                   \
>-    memcpy(temp, y_buf + n * SBPP, r * SBPP);                           \
>-    memcpy(temp + 64, uv_buf + (n >> UVSHIFT) * SBPP2,                  \
>-           SS(r, UVSHIFT) * SBPP2);                                     \
>-    ANY_SIMD(temp, temp + 64, temp + 128, MASK + 1);                    \
>-    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                     \
>+#define ANY21(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, SBPP2, BPP, MASK)             \
>+  void NAMEANY(const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* dst_ptr, \
>+               int width) {                                                   \
>+    SIMD_ALIGNED(uint8_t temp[64 * 3]);                                       \
>+    memset(temp, 0, 64 * 2); /* for msan */                                   \
>+    int r = width & MASK;                                                     \
>+    int n = width & ~MASK;                                                    \
>+    if (n > 0) {                                                              \
>+      ANY_SIMD(y_buf, uv_buf, dst_ptr, n);                                    \
>+    }                                                                         \
>+    memcpy(temp, y_buf + n * SBPP, r * SBPP);                                 \
>+    memcpy(temp + 64, uv_buf + (n >> UVSHIFT) * SBPP2,                        \
>+           SS(r, UVSHIFT) * SBPP2);                                           \
>+    ANY_SIMD(temp, temp + 64, temp + 128, MASK + 1);                          \
>+    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                           \
>   }
> 
> // Merge functions.
>@@ -299,21 +338,21 @@ ANY21(SobelXYRow_Any_MSA, SobelXYRow_MSA, 0, 1, 1, 4, 15)
> #undef ANY21
> 
> // Any 2 planes to 1 with yuvconstants
>-#define ANY21C(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, SBPP2, BPP, MASK)      \
>-  void NAMEANY(const uint8* y_buf, const uint8* uv_buf, uint8* dst_ptr, \
>-               const struct YuvConstants* yuvconstants, int width) {    \
>-    SIMD_ALIGNED(uint8 temp[64 * 3]);                                   \
>-    memset(temp, 0, 64 * 2); /* for msan */                             \
>-    int r = width & MASK;                                               \
>-    int n = width & ~MASK;                                              \
>-    if (n > 0) {                                                        \
>-      ANY_SIMD(y_buf, uv_buf, dst_ptr, yuvconstants, n);                \
>-    }                                                                   \
>-    memcpy(temp, y_buf + n * SBPP, r * SBPP);                           \
>-    memcpy(temp + 64, uv_buf + (n >> UVSHIFT) * SBPP2,                  \
>-           SS(r, UVSHIFT) * SBPP2);                                     \
>-    ANY_SIMD(temp, temp + 64, temp + 128, yuvconstants, MASK + 1);      \
>-    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                     \
>+#define ANY21C(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, SBPP2, BPP, MASK)            \
>+  void NAMEANY(const uint8_t* y_buf, const uint8_t* uv_buf, uint8_t* dst_ptr, \
>+               const struct YuvConstants* yuvconstants, int width) {          \
>+    SIMD_ALIGNED(uint8_t temp[64 * 3]);                                       \
>+    memset(temp, 0, 64 * 2); /* for msan */                                   \
>+    int r = width & MASK;                                                     \
>+    int n = width & ~MASK;                                                    \
>+    if (n > 0) {                                                              \
>+      ANY_SIMD(y_buf, uv_buf, dst_ptr, yuvconstants, n);                      \
>+    }                                                                         \
>+    memcpy(temp, y_buf + n * SBPP, r * SBPP);                                 \
>+    memcpy(temp + 64, uv_buf + (n >> UVSHIFT) * SBPP2,                        \
>+           SS(r, UVSHIFT) * SBPP2);                                           \
>+    ANY_SIMD(temp, temp + 64, temp + 128, yuvconstants, MASK + 1);            \
>+    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                           \
>   }
> 
> // Biplanar to RGB.
>@@ -326,9 +365,6 @@ ANY21C(NV12ToARGBRow_Any_AVX2, NV12ToARGBRow_AVX2, 1, 1, 2, 4, 15)
> #ifdef HAS_NV12TOARGBROW_NEON
> ANY21C(NV12ToARGBRow_Any_NEON, NV12ToARGBRow_NEON, 1, 1, 2, 4, 7)
> #endif
>-#ifdef HAS_NV12TOARGBROW_DSPR2
>-ANY21C(NV12ToARGBRow_Any_DSPR2, NV12ToARGBRow_DSPR2, 1, 1, 2, 4, 7)
>-#endif
> #ifdef HAS_NV12TOARGBROW_MSA
> ANY21C(NV12ToARGBRow_Any_MSA, NV12ToARGBRow_MSA, 1, 1, 2, 4, 7)
> #endif
>@@ -344,6 +380,12 @@ ANY21C(NV21ToARGBRow_Any_NEON, NV21ToARGBRow_NEON, 1, 1, 2, 4, 7)
> #ifdef HAS_NV21TOARGBROW_MSA
> ANY21C(NV21ToARGBRow_Any_MSA, NV21ToARGBRow_MSA, 1, 1, 2, 4, 7)
> #endif
>+#ifdef HAS_NV12TORGB24ROW_NEON
>+ANY21C(NV12ToRGB24Row_Any_NEON, NV12ToRGB24Row_NEON, 1, 1, 2, 3, 7)
>+#endif
>+#ifdef HAS_NV21TORGB24ROW_NEON
>+ANY21C(NV21ToRGB24Row_Any_NEON, NV21ToRGB24Row_NEON, 1, 1, 2, 3, 7)
>+#endif
> #ifdef HAS_NV12TORGB565ROW_SSSE3
> ANY21C(NV12ToRGB565Row_Any_SSSE3, NV12ToRGB565Row_SSSE3, 1, 1, 2, 2, 7)
> #endif
>@@ -360,8 +402,8 @@ ANY21C(NV12ToRGB565Row_Any_MSA, NV12ToRGB565Row_MSA, 1, 1, 2, 2, 7)
> 
> // Any 1 to 1.
> #define ANY11(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, BPP, MASK)                \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_ptr, int width) {         \
>-    SIMD_ALIGNED(uint8 temp[128 * 2]);                                    \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_ptr, int width) {     \
>+    SIMD_ALIGNED(uint8_t temp[128 * 2]);                                  \
>     memset(temp, 0, 128); /* for YUY2 and msan */                         \
>     int r = width & MASK;                                                 \
>     int n = width & ~MASK;                                                \
>@@ -396,6 +438,18 @@ ANY11(ARGBToRGB565Row_Any_AVX2, ARGBToRGB565Row_AVX2, 0, 4, 2, 7)
> ANY11(ARGBToARGB1555Row_Any_AVX2, ARGBToARGB1555Row_AVX2, 0, 4, 2, 7)
> ANY11(ARGBToARGB4444Row_Any_AVX2, ARGBToARGB4444Row_AVX2, 0, 4, 2, 7)
> #endif
>+#if defined(HAS_ABGRTOAR30ROW_SSSE3)
>+ANY11(ABGRToAR30Row_Any_SSSE3, ABGRToAR30Row_SSSE3, 0, 4, 4, 3)
>+#endif
>+#if defined(HAS_ARGBTOAR30ROW_SSSE3)
>+ANY11(ARGBToAR30Row_Any_SSSE3, ARGBToAR30Row_SSSE3, 0, 4, 4, 3)
>+#endif
>+#if defined(HAS_ABGRTOAR30ROW_AVX2)
>+ANY11(ABGRToAR30Row_Any_AVX2, ABGRToAR30Row_AVX2, 0, 4, 4, 7)
>+#endif
>+#if defined(HAS_ARGBTOAR30ROW_AVX2)
>+ANY11(ARGBToAR30Row_Any_AVX2, ARGBToAR30Row_AVX2, 0, 4, 4, 7)
>+#endif
> #if defined(HAS_J400TOARGBROW_SSE2)
> ANY11(J400ToARGBRow_Any_SSE2, J400ToARGBRow_SSE2, 0, 1, 4, 7)
> #endif
>@@ -572,33 +626,6 @@ ANY11(ARGB1555ToARGBRow_Any_MSA, ARGB1555ToARGBRow_MSA, 0, 2, 4, 15)
> #ifdef HAS_ARGB4444TOARGBROW_NEON
> ANY11(ARGB4444ToARGBRow_Any_NEON, ARGB4444ToARGBRow_NEON, 0, 2, 4, 7)
> #endif
>-#ifdef HAS_RGB24TOARGBROW_DSPR2
>-ANY11(RGB24ToARGBRow_Any_DSPR2, RGB24ToARGBRow_DSPR2, 0, 3, 4, 7)
>-#endif
>-#ifdef HAS_RAWTOARGBROW_DSPR2
>-ANY11(RAWToARGBRow_Any_DSPR2, RAWToARGBRow_DSPR2, 0, 3, 4, 7)
>-#endif
>-#ifdef HAS_RGB565TOARGBROW_DSPR2
>-ANY11(RGB565ToARGBRow_Any_DSPR2, RGB565ToARGBRow_DSPR2, 0, 2, 4, 7)
>-#endif
>-#ifdef HAS_ARGB1555TOARGBROW_DSPR2
>-ANY11(ARGB1555ToARGBRow_Any_DSPR2, ARGB1555ToARGBRow_DSPR2, 0, 2, 4, 7)
>-#endif
>-#ifdef HAS_ARGB4444TOARGBROW_DSPR2
>-ANY11(ARGB4444ToARGBRow_Any_DSPR2, ARGB4444ToARGBRow_DSPR2, 0, 2, 4, 7)
>-#endif
>-#ifdef HAS_BGRATOYROW_DSPR2
>-ANY11(BGRAToYRow_Any_DSPR2, BGRAToYRow_DSPR2, 0, 4, 1, 7)
>-#endif
>-#ifdef HAS_ARGBTOYROW_DSPR2
>-ANY11(ARGBToYRow_Any_DSPR2, ARGBToYRow_DSPR2, 0, 4, 1, 7)
>-#endif
>-#ifdef HAS_ABGRTOYROW_DSPR2
>-ANY11(ABGRToYRow_Any_DSPR2, ABGRToYRow_DSPR2, 0, 4, 1, 7)
>-#endif
>-#ifdef HAS_RGBATOYROW_DSPR2
>-ANY11(RGBAToYRow_Any_DSPR2, RGBAToYRow_DSPR2, 0, 4, 1, 7)
>-#endif
> #ifdef HAS_ARGB4444TOARGBROW_MSA
> ANY11(ARGB4444ToARGBRow_Any_MSA, ARGB4444ToARGBRow_MSA, 0, 2, 4, 15)
> #endif
>@@ -636,8 +663,8 @@ ANY11(ARGBExtractAlphaRow_Any_MSA, ARGBExtractAlphaRow_MSA, 0, 4, 1, 15)
> 
> // Any 1 to 1 blended.  Destination is read, modify, write.
> #define ANY11B(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, BPP, MASK)               \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_ptr, int width) {         \
>-    SIMD_ALIGNED(uint8 temp[64 * 2]);                                     \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_ptr, int width) {     \
>+    SIMD_ALIGNED(uint8_t temp[64 * 2]);                                   \
>     memset(temp, 0, 64 * 2); /* for msan */                               \
>     int r = width & MASK;                                                 \
>     int n = width & ~MASK;                                                \
>@@ -665,24 +692,24 @@ ANY11B(ARGBCopyYToAlphaRow_Any_SSE2, ARGBCopyYToAlphaRow_SSE2, 0, 1, 4, 7)
> #undef ANY11B
> 
> // Any 1 to 1 with parameter.
>-#define ANY11P(NAMEANY, ANY_SIMD, T, SBPP, BPP, MASK)                      \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_ptr, T param, int width) { \
>-    SIMD_ALIGNED(uint8 temp[64 * 2]);                                      \
>-    memset(temp, 0, 64); /* for msan */                                    \
>-    int r = width & MASK;                                                  \
>-    int n = width & ~MASK;                                                 \
>-    if (n > 0) {                                                           \
>-      ANY_SIMD(src_ptr, dst_ptr, param, n);                                \
>-    }                                                                      \
>-    memcpy(temp, src_ptr + n * SBPP, r * SBPP);                            \
>-    ANY_SIMD(temp, temp + 64, param, MASK + 1);                            \
>-    memcpy(dst_ptr + n * BPP, temp + 64, r * BPP);                         \
>+#define ANY11P(NAMEANY, ANY_SIMD, T, SBPP, BPP, MASK)                          \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_ptr, T param, int width) { \
>+    SIMD_ALIGNED(uint8_t temp[64 * 2]);                                        \
>+    memset(temp, 0, 64); /* for msan */                                        \
>+    int r = width & MASK;                                                      \
>+    int n = width & ~MASK;                                                     \
>+    if (n > 0) {                                                               \
>+      ANY_SIMD(src_ptr, dst_ptr, param, n);                                    \
>+    }                                                                          \
>+    memcpy(temp, src_ptr + n * SBPP, r * SBPP);                                \
>+    ANY_SIMD(temp, temp + 64, param, MASK + 1);                                \
>+    memcpy(dst_ptr + n * BPP, temp + 64, r * BPP);                             \
>   }
> 
> #if defined(HAS_ARGBTORGB565DITHERROW_SSE2)
> ANY11P(ARGBToRGB565DitherRow_Any_SSE2,
>        ARGBToRGB565DitherRow_SSE2,
>-       const uint32,
>+       const uint32_t,
>        4,
>        2,
>        3)
>@@ -690,7 +717,7 @@ ANY11P(ARGBToRGB565DitherRow_Any_SSE2,
> #if defined(HAS_ARGBTORGB565DITHERROW_AVX2)
> ANY11P(ARGBToRGB565DitherRow_Any_AVX2,
>        ARGBToRGB565DitherRow_AVX2,
>-       const uint32,
>+       const uint32_t,
>        4,
>        2,
>        7)
>@@ -698,7 +725,7 @@ ANY11P(ARGBToRGB565DitherRow_Any_AVX2,
> #if defined(HAS_ARGBTORGB565DITHERROW_NEON)
> ANY11P(ARGBToRGB565DitherRow_Any_NEON,
>        ARGBToRGB565DitherRow_NEON,
>-       const uint32,
>+       const uint32_t,
>        4,
>        2,
>        7)
>@@ -706,67 +733,134 @@ ANY11P(ARGBToRGB565DitherRow_Any_NEON,
> #if defined(HAS_ARGBTORGB565DITHERROW_MSA)
> ANY11P(ARGBToRGB565DitherRow_Any_MSA,
>        ARGBToRGB565DitherRow_MSA,
>-       const uint32,
>+       const uint32_t,
>        4,
>        2,
>        7)
> #endif
>-#ifdef HAS_ARGBSHUFFLEROW_SSE2
>-ANY11P(ARGBShuffleRow_Any_SSE2, ARGBShuffleRow_SSE2, const uint8*, 4, 4, 3)
>-#endif
> #ifdef HAS_ARGBSHUFFLEROW_SSSE3
>-ANY11P(ARGBShuffleRow_Any_SSSE3, ARGBShuffleRow_SSSE3, const uint8*, 4, 4, 7)
>+ANY11P(ARGBShuffleRow_Any_SSSE3, ARGBShuffleRow_SSSE3, const uint8_t*, 4, 4, 7)
> #endif
> #ifdef HAS_ARGBSHUFFLEROW_AVX2
>-ANY11P(ARGBShuffleRow_Any_AVX2, ARGBShuffleRow_AVX2, const uint8*, 4, 4, 15)
>+ANY11P(ARGBShuffleRow_Any_AVX2, ARGBShuffleRow_AVX2, const uint8_t*, 4, 4, 15)
> #endif
> #ifdef HAS_ARGBSHUFFLEROW_NEON
>-ANY11P(ARGBShuffleRow_Any_NEON, ARGBShuffleRow_NEON, const uint8*, 4, 4, 3)
>+ANY11P(ARGBShuffleRow_Any_NEON, ARGBShuffleRow_NEON, const uint8_t*, 4, 4, 3)
> #endif
> #ifdef HAS_ARGBSHUFFLEROW_MSA
>-ANY11P(ARGBShuffleRow_Any_MSA, ARGBShuffleRow_MSA, const uint8*, 4, 4, 7)
>+ANY11P(ARGBShuffleRow_Any_MSA, ARGBShuffleRow_MSA, const uint8_t*, 4, 4, 7)
> #endif
> #undef ANY11P
> 
> // Any 1 to 1 with parameter and shorts.  BPP measures in shorts.
>-#define ANY11P16(NAMEANY, ANY_SIMD, T, SBPP, BPP, MASK)                      \
>-  void NAMEANY(const uint16* src_ptr, uint16* dst_ptr, T param, int width) { \
>-    SIMD_ALIGNED(uint16 temp[16 * 2]);                                       \
>-    memset(temp, 0, 32); /* for msan */                                      \
>+#define ANY11C(NAMEANY, ANY_SIMD, SBPP, BPP, STYPE, DTYPE, MASK)             \
>+  void NAMEANY(const STYPE* src_ptr, DTYPE* dst_ptr, int scale, int width) { \
>+    SIMD_ALIGNED(STYPE temp[32]);                                            \
>+    SIMD_ALIGNED(DTYPE out[32]);                                             \
>+    memset(temp, 0, 32 * SBPP); /* for msan */                               \
>     int r = width & MASK;                                                    \
>     int n = width & ~MASK;                                                   \
>     if (n > 0) {                                                             \
>-      ANY_SIMD(src_ptr, dst_ptr, param, n);                                  \
>+      ANY_SIMD(src_ptr, dst_ptr, scale, n);                                  \
>     }                                                                        \
>     memcpy(temp, src_ptr + n, r * SBPP);                                     \
>-    ANY_SIMD(temp, temp + 16, param, MASK + 1);                              \
>-    memcpy(dst_ptr + n, temp + 16, r * BPP);                                 \
>+    ANY_SIMD(temp, out, scale, MASK + 1);                                    \
>+    memcpy(dst_ptr + n, out, r * BPP);                                       \
>+  }
>+
>+#ifdef HAS_CONVERT16TO8ROW_SSSE3
>+ANY11C(Convert16To8Row_Any_SSSE3,
>+       Convert16To8Row_SSSE3,
>+       2,
>+       1,
>+       uint16_t,
>+       uint8_t,
>+       15)
>+#endif
>+#ifdef HAS_CONVERT16TO8ROW_AVX2
>+ANY11C(Convert16To8Row_Any_AVX2,
>+       Convert16To8Row_AVX2,
>+       2,
>+       1,
>+       uint16_t,
>+       uint8_t,
>+       31)
>+#endif
>+#ifdef HAS_CONVERT8TO16ROW_SSE2
>+ANY11C(Convert8To16Row_Any_SSE2,
>+       Convert8To16Row_SSE2,
>+       1,
>+       2,
>+       uint8_t,
>+       uint16_t,
>+       15)
>+#endif
>+#ifdef HAS_CONVERT8TO16ROW_AVX2
>+ANY11C(Convert8To16Row_Any_AVX2,
>+       Convert8To16Row_AVX2,
>+       1,
>+       2,
>+       uint8_t,
>+       uint16_t,
>+       31)
>+#endif
>+#undef ANY11C
>+
>+// Any 1 to 1 with parameter and shorts to byte.  BPP measures in shorts.
>+#define ANY11P16(NAMEANY, ANY_SIMD, ST, T, SBPP, BPP, MASK)             \
>+  void NAMEANY(const ST* src_ptr, T* dst_ptr, float param, int width) { \
>+    SIMD_ALIGNED(ST temp[32]);                                          \
>+    SIMD_ALIGNED(T out[32]);                                            \
>+    memset(temp, 0, SBPP * 32); /* for msan */                          \
>+    int r = width & MASK;                                               \
>+    int n = width & ~MASK;                                              \
>+    if (n > 0) {                                                        \
>+      ANY_SIMD(src_ptr, dst_ptr, param, n);                             \
>+    }                                                                   \
>+    memcpy(temp, src_ptr + n, r * SBPP);                                \
>+    ANY_SIMD(temp, out, param, MASK + 1);                               \
>+    memcpy(dst_ptr + n, out, r * BPP);                                  \
>   }
> 
> #ifdef HAS_HALFFLOATROW_SSE2
>-ANY11P16(HalfFloatRow_Any_SSE2, HalfFloatRow_SSE2, float, 2, 2, 7)
>+ANY11P16(HalfFloatRow_Any_SSE2, HalfFloatRow_SSE2, uint16_t, uint16_t, 2, 2, 7)
> #endif
> #ifdef HAS_HALFFLOATROW_AVX2
>-ANY11P16(HalfFloatRow_Any_AVX2, HalfFloatRow_AVX2, float, 2, 2, 15)
>+ANY11P16(HalfFloatRow_Any_AVX2, HalfFloatRow_AVX2, uint16_t, uint16_t, 2, 2, 15)
> #endif
> #ifdef HAS_HALFFLOATROW_F16C
>-ANY11P16(HalfFloatRow_Any_F16C, HalfFloatRow_F16C, float, 2, 2, 15)
>-ANY11P16(HalfFloat1Row_Any_F16C, HalfFloat1Row_F16C, float, 2, 2, 15)
>+ANY11P16(HalfFloatRow_Any_F16C, HalfFloatRow_F16C, uint16_t, uint16_t, 2, 2, 15)
>+ANY11P16(HalfFloat1Row_Any_F16C,
>+         HalfFloat1Row_F16C,
>+         uint16_t,
>+         uint16_t,
>+         2,
>+         2,
>+         15)
> #endif
> #ifdef HAS_HALFFLOATROW_NEON
>-ANY11P16(HalfFloatRow_Any_NEON, HalfFloatRow_NEON, float, 2, 2, 7)
>-ANY11P16(HalfFloat1Row_Any_NEON, HalfFloat1Row_NEON, float, 2, 2, 7)
>+ANY11P16(HalfFloatRow_Any_NEON, HalfFloatRow_NEON, uint16_t, uint16_t, 2, 2, 7)
>+ANY11P16(HalfFloat1Row_Any_NEON,
>+         HalfFloat1Row_NEON,
>+         uint16_t,
>+         uint16_t,
>+         2,
>+         2,
>+         7)
> #endif
> #ifdef HAS_HALFFLOATROW_MSA
>-ANY11P16(HalfFloatRow_Any_MSA, HalfFloatRow_MSA, float, 2, 2, 31)
>+ANY11P16(HalfFloatRow_Any_MSA, HalfFloatRow_MSA, uint16_t, uint16_t, 2, 2, 31)
>+#endif
>+#ifdef HAS_BYTETOFLOATROW_NEON
>+ANY11P16(ByteToFloatRow_Any_NEON, ByteToFloatRow_NEON, uint8_t, float, 1, 3, 7)
> #endif
> #undef ANY11P16
> 
> // Any 1 to 1 with yuvconstants
> #define ANY11C(NAMEANY, ANY_SIMD, UVSHIFT, SBPP, BPP, MASK)               \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_ptr,                      \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_ptr,                  \
>                const struct YuvConstants* yuvconstants, int width) {      \
>-    SIMD_ALIGNED(uint8 temp[128 * 2]);                                    \
>+    SIMD_ALIGNED(uint8_t temp[128 * 2]);                                  \
>     memset(temp, 0, 128); /* for YUY2 and msan */                         \
>     int r = width & MASK;                                                 \
>     int n = width & ~MASK;                                                \
>@@ -796,20 +890,20 @@ ANY11C(UYVYToARGBRow_Any_MSA, UYVYToARGBRow_MSA, 1, 4, 4, 7)
> #undef ANY11C
> 
> // Any 1 to 1 interpolate.  Takes 2 rows of source via stride.
>-#define ANY11T(NAMEANY, ANY_SIMD, SBPP, BPP, MASK)                             \
>-  void NAMEANY(uint8* dst_ptr, const uint8* src_ptr, ptrdiff_t src_stride_ptr, \
>-               int width, int source_y_fraction) {                             \
>-    SIMD_ALIGNED(uint8 temp[64 * 3]);                                          \
>-    memset(temp, 0, 64 * 2); /* for msan */                                    \
>-    int r = width & MASK;                                                      \
>-    int n = width & ~MASK;                                                     \
>-    if (n > 0) {                                                               \
>-      ANY_SIMD(dst_ptr, src_ptr, src_stride_ptr, n, source_y_fraction);        \
>-    }                                                                          \
>-    memcpy(temp, src_ptr + n * SBPP, r * SBPP);                                \
>-    memcpy(temp + 64, src_ptr + src_stride_ptr + n * SBPP, r * SBPP);          \
>-    ANY_SIMD(temp + 128, temp, 64, MASK + 1, source_y_fraction);               \
>-    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                            \
>+#define ANY11T(NAMEANY, ANY_SIMD, SBPP, BPP, MASK)                           \
>+  void NAMEANY(uint8_t* dst_ptr, const uint8_t* src_ptr,                     \
>+               ptrdiff_t src_stride_ptr, int width, int source_y_fraction) { \
>+    SIMD_ALIGNED(uint8_t temp[64 * 3]);                                      \
>+    memset(temp, 0, 64 * 2); /* for msan */                                  \
>+    int r = width & MASK;                                                    \
>+    int n = width & ~MASK;                                                   \
>+    if (n > 0) {                                                             \
>+      ANY_SIMD(dst_ptr, src_ptr, src_stride_ptr, n, source_y_fraction);      \
>+    }                                                                        \
>+    memcpy(temp, src_ptr + n * SBPP, r * SBPP);                              \
>+    memcpy(temp + 64, src_ptr + src_stride_ptr + n * SBPP, r * SBPP);        \
>+    ANY_SIMD(temp + 128, temp, 64, MASK + 1, source_y_fraction);             \
>+    memcpy(dst_ptr + n * BPP, temp + 128, r * BPP);                          \
>   }
> 
> #ifdef HAS_INTERPOLATEROW_AVX2
>@@ -821,9 +915,6 @@ ANY11T(InterpolateRow_Any_SSSE3, InterpolateRow_SSSE3, 1, 1, 15)
> #ifdef HAS_INTERPOLATEROW_NEON
> ANY11T(InterpolateRow_Any_NEON, InterpolateRow_NEON, 1, 1, 15)
> #endif
>-#ifdef HAS_INTERPOLATEROW_DSPR2
>-ANY11T(InterpolateRow_Any_DSPR2, InterpolateRow_DSPR2, 1, 1, 3)
>-#endif
> #ifdef HAS_INTERPOLATEROW_MSA
> ANY11T(InterpolateRow_Any_MSA, InterpolateRow_MSA, 1, 1, 31)
> #endif
>@@ -831,8 +922,8 @@ ANY11T(InterpolateRow_Any_MSA, InterpolateRow_MSA, 1, 1, 31)
> 
> // Any 1 to 1 mirror.
> #define ANY11M(NAMEANY, ANY_SIMD, BPP, MASK)                              \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_ptr, int width) {         \
>-    SIMD_ALIGNED(uint8 temp[64 * 2]);                                     \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_ptr, int width) {     \
>+    SIMD_ALIGNED(uint8_t temp[64 * 2]);                                   \
>     memset(temp, 0, 64); /* for msan */                                   \
>     int r = width & MASK;                                                 \
>     int n = width & ~MASK;                                                \
>@@ -871,46 +962,47 @@ ANY11M(ARGBMirrorRow_Any_MSA, ARGBMirrorRow_MSA, 4, 15)
> #undef ANY11M
> 
> // Any 1 plane. (memset)
>-#define ANY1(NAMEANY, ANY_SIMD, T, BPP, MASK)      \
>-  void NAMEANY(uint8* dst_ptr, T v32, int width) { \
>-    SIMD_ALIGNED(uint8 temp[64]);                  \
>-    int r = width & MASK;                          \
>-    int n = width & ~MASK;                         \
>-    if (n > 0) {                                   \
>-      ANY_SIMD(dst_ptr, v32, n);                   \
>-    }                                              \
>-    ANY_SIMD(temp, v32, MASK + 1);                 \
>-    memcpy(dst_ptr + n * BPP, temp, r * BPP);      \
>+#define ANY1(NAMEANY, ANY_SIMD, T, BPP, MASK)        \
>+  void NAMEANY(uint8_t* dst_ptr, T v32, int width) { \
>+    SIMD_ALIGNED(uint8_t temp[64]);                  \
>+    int r = width & MASK;                            \
>+    int n = width & ~MASK;                           \
>+    if (n > 0) {                                     \
>+      ANY_SIMD(dst_ptr, v32, n);                     \
>+    }                                                \
>+    ANY_SIMD(temp, v32, MASK + 1);                   \
>+    memcpy(dst_ptr + n * BPP, temp, r * BPP);        \
>   }
> 
> #ifdef HAS_SETROW_X86
>-ANY1(SetRow_Any_X86, SetRow_X86, uint8, 1, 3)
>+ANY1(SetRow_Any_X86, SetRow_X86, uint8_t, 1, 3)
> #endif
> #ifdef HAS_SETROW_NEON
>-ANY1(SetRow_Any_NEON, SetRow_NEON, uint8, 1, 15)
>+ANY1(SetRow_Any_NEON, SetRow_NEON, uint8_t, 1, 15)
> #endif
> #ifdef HAS_ARGBSETROW_NEON
>-ANY1(ARGBSetRow_Any_NEON, ARGBSetRow_NEON, uint32, 4, 3)
>+ANY1(ARGBSetRow_Any_NEON, ARGBSetRow_NEON, uint32_t, 4, 3)
> #endif
> #ifdef HAS_ARGBSETROW_MSA
>-ANY1(ARGBSetRow_Any_MSA, ARGBSetRow_MSA, uint32, 4, 3)
>+ANY1(ARGBSetRow_Any_MSA, ARGBSetRow_MSA, uint32_t, 4, 3)
> #endif
> #undef ANY1
> 
> // Any 1 to 2.  Outputs UV planes.
>-#define ANY12(NAMEANY, ANY_SIMD, UVSHIFT, BPP, DUVSHIFT, MASK)                \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_u, uint8* dst_v, int width) { \
>-    SIMD_ALIGNED(uint8 temp[128 * 3]);                                        \
>-    memset(temp, 0, 128); /* for msan */                                      \
>-    int r = width & MASK;                                                     \
>-    int n = width & ~MASK;                                                    \
>-    if (n > 0) {                                                              \
>-      ANY_SIMD(src_ptr, dst_u, dst_v, n);                                     \
>-    }                                                                         \
>-    memcpy(temp, src_ptr + (n >> UVSHIFT) * BPP, SS(r, UVSHIFT) * BPP);       \
>-    ANY_SIMD(temp, temp + 128, temp + 256, MASK + 1);                         \
>-    memcpy(dst_u + (n >> DUVSHIFT), temp + 128, SS(r, DUVSHIFT));             \
>-    memcpy(dst_v + (n >> DUVSHIFT), temp + 256, SS(r, DUVSHIFT));             \
>+#define ANY12(NAMEANY, ANY_SIMD, UVSHIFT, BPP, DUVSHIFT, MASK)          \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_u, uint8_t* dst_v,  \
>+               int width) {                                             \
>+    SIMD_ALIGNED(uint8_t temp[128 * 3]);                                \
>+    memset(temp, 0, 128); /* for msan */                                \
>+    int r = width & MASK;                                               \
>+    int n = width & ~MASK;                                              \
>+    if (n > 0) {                                                        \
>+      ANY_SIMD(src_ptr, dst_u, dst_v, n);                               \
>+    }                                                                   \
>+    memcpy(temp, src_ptr + (n >> UVSHIFT) * BPP, SS(r, UVSHIFT) * BPP); \
>+    ANY_SIMD(temp, temp + 128, temp + 256, MASK + 1);                   \
>+    memcpy(dst_u + (n >> DUVSHIFT), temp + 128, SS(r, DUVSHIFT));       \
>+    memcpy(dst_v + (n >> DUVSHIFT), temp + 256, SS(r, DUVSHIFT));       \
>   }
> 
> #ifdef HAS_SPLITUVROW_SSE2
>@@ -922,9 +1014,6 @@ ANY12(SplitUVRow_Any_AVX2, SplitUVRow_AVX2, 0, 2, 0, 31)
> #ifdef HAS_SPLITUVROW_NEON
> ANY12(SplitUVRow_Any_NEON, SplitUVRow_NEON, 0, 2, 0, 15)
> #endif
>-#ifdef HAS_SPLITUVROW_DSPR2
>-ANY12(SplitUVRow_Any_DSPR2, SplitUVRow_DSPR2, 0, 2, 0, 15)
>-#endif
> #ifdef HAS_SPLITUVROW_MSA
> ANY12(SplitUVRow_Any_MSA, SplitUVRow_MSA, 0, 2, 0, 31)
> #endif
>@@ -952,21 +1041,21 @@ ANY12(UYVYToUV422Row_Any_MSA, UYVYToUV422Row_MSA, 1, 4, 1, 31)
> #undef ANY12
> 
> // Any 1 to 3.  Outputs RGB planes.
>-#define ANY13(NAMEANY, ANY_SIMD, BPP, MASK)                                    \
>-  void NAMEANY(const uint8* src_ptr, uint8* dst_r, uint8* dst_g, uint8* dst_b, \
>-               int width) {                                                    \
>-    SIMD_ALIGNED(uint8 temp[16 * 6]);                                          \
>-    memset(temp, 0, 16 * 3); /* for msan */                                    \
>-    int r = width & MASK;                                                      \
>-    int n = width & ~MASK;                                                     \
>-    if (n > 0) {                                                               \
>-      ANY_SIMD(src_ptr, dst_r, dst_g, dst_b, n);                               \
>-    }                                                                          \
>-    memcpy(temp, src_ptr + n * BPP, r * BPP);                                  \
>-    ANY_SIMD(temp, temp + 16 * 3, temp + 16 * 4, temp + 16 * 5, MASK + 1);     \
>-    memcpy(dst_r + n, temp + 16 * 3, r);                                       \
>-    memcpy(dst_g + n, temp + 16 * 4, r);                                       \
>-    memcpy(dst_b + n, temp + 16 * 5, r);                                       \
>+#define ANY13(NAMEANY, ANY_SIMD, BPP, MASK)                                \
>+  void NAMEANY(const uint8_t* src_ptr, uint8_t* dst_r, uint8_t* dst_g,     \
>+               uint8_t* dst_b, int width) {                                \
>+    SIMD_ALIGNED(uint8_t temp[16 * 6]);                                    \
>+    memset(temp, 0, 16 * 3); /* for msan */                                \
>+    int r = width & MASK;                                                  \
>+    int n = width & ~MASK;                                                 \
>+    if (n > 0) {                                                           \
>+      ANY_SIMD(src_ptr, dst_r, dst_g, dst_b, n);                           \
>+    }                                                                      \
>+    memcpy(temp, src_ptr + n * BPP, r * BPP);                              \
>+    ANY_SIMD(temp, temp + 16 * 3, temp + 16 * 4, temp + 16 * 5, MASK + 1); \
>+    memcpy(dst_r + n, temp + 16 * 3, r);                                   \
>+    memcpy(dst_g + n, temp + 16 * 4, r);                                   \
>+    memcpy(dst_b + n, temp + 16 * 5, r);                                   \
>   }
> 
> #ifdef HAS_SPLITRGBROW_SSSE3
>@@ -979,9 +1068,9 @@ ANY13(SplitRGBRow_Any_NEON, SplitRGBRow_NEON, 3, 15)
> // Any 1 to 2 with source stride (2 rows of source).  Outputs UV planes.
> // 128 byte row allows for 32 avx ARGB pixels.
> #define ANY12S(NAMEANY, ANY_SIMD, UVSHIFT, BPP, MASK)                        \
>-  void NAMEANY(const uint8* src_ptr, int src_stride_ptr, uint8* dst_u,       \
>-               uint8* dst_v, int width) {                                    \
>-    SIMD_ALIGNED(uint8 temp[128 * 4]);                                       \
>+  void NAMEANY(const uint8_t* src_ptr, int src_stride_ptr, uint8_t* dst_u,   \
>+               uint8_t* dst_v, int width) {                                  \
>+    SIMD_ALIGNED(uint8_t temp[128 * 4]);                                     \
>     memset(temp, 0, 128 * 2); /* for msan */                                 \
>     int r = width & MASK;                                                    \
>     int n = width & ~MASK;                                                   \
>@@ -1086,18 +1175,6 @@ ANY12S(YUY2ToUVRow_Any_NEON, YUY2ToUVRow_NEON, 1, 4, 15)
> #ifdef HAS_UYVYTOUVROW_NEON
> ANY12S(UYVYToUVRow_Any_NEON, UYVYToUVRow_NEON, 1, 4, 15)
> #endif
>-#ifdef HAS_BGRATOUVROW_DSPR2
>-ANY12S(BGRAToUVRow_Any_DSPR2, BGRAToUVRow_DSPR2, 0, 4, 15)
>-#endif
>-#ifdef HAS_ABGRTOUVROW_DSPR2
>-ANY12S(ABGRToUVRow_Any_DSPR2, ABGRToUVRow_DSPR2, 0, 4, 15)
>-#endif
>-#ifdef HAS_RGBATOUVROW_DSPR2
>-ANY12S(RGBAToUVRow_Any_DSPR2, RGBAToUVRow_DSPR2, 0, 4, 15)
>-#endif
>-#ifdef HAS_ARGBTOUVROW_DSPR2
>-ANY12S(ARGBToUVRow_Any_DSPR2, ARGBToUVRow_DSPR2, 0, 4, 15)
>-#endif
> #ifdef HAS_YUY2TOUVROW_MSA
> ANY12S(YUY2ToUVRow_Any_MSA, YUY2ToUVRow_MSA, 1, 4, 31)
> #endif
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_common.cc
>index 6ffc4febbf6537b86ba46a0b8f8e1ebbff691508..da97821f796440dd12beb6e05f4ff626842d2bd6 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_common.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_common.cc
>@@ -10,6 +10,7 @@
> 
> #include "libyuv/row.h"
> 
>+#include <stdio.h>
> #include <string.h>  // For memcpy and memset.
> 
> #include "libyuv/basic_types.h"
>@@ -23,59 +24,69 @@ extern "C" {
> 
> #define USE_BRANCHLESS 1
> #if USE_BRANCHLESS
>-static __inline int32 clamp0(int32 v) {
>+static __inline int32_t clamp0(int32_t v) {
>   return ((-(v) >> 31) & (v));
> }
> 
>-static __inline int32 clamp255(int32 v) {
>+static __inline int32_t clamp255(int32_t v) {
>   return (((255 - (v)) >> 31) | (v)) & 255;
> }
> 
>-static __inline uint32 Clamp(int32 val) {
>-  int v = clamp0(val);
>-  return (uint32)(clamp255(v));
>+static __inline int32_t clamp1023(int32_t v) {
>+  return (((1023 - (v)) >> 31) | (v)) & 1023;
> }
> 
>-static __inline uint32 Abs(int32 v) {
>+static __inline uint32_t Abs(int32_t v) {
>   int m = v >> 31;
>   return (v + m) ^ m;
> }
> #else   // USE_BRANCHLESS
>-static __inline int32 clamp0(int32 v) {
>+static __inline int32_t clamp0(int32_t v) {
>   return (v < 0) ? 0 : v;
> }
> 
>-static __inline int32 clamp255(int32 v) {
>+static __inline int32_t clamp255(int32_t v) {
>   return (v > 255) ? 255 : v;
> }
> 
>-static __inline uint32 Clamp(int32 val) {
>-  int v = clamp0(val);
>-  return (uint32)(clamp255(v));
>+static __inline int32_t clamp1023(int32_t v) {
>+  return (v > 1023) ? 1023 : v;
> }
> 
>-static __inline uint32 Abs(int32 v) {
>+static __inline uint32_t Abs(int32_t v) {
>   return (v < 0) ? -v : v;
> }
> #endif  // USE_BRANCHLESS
>+static __inline uint32_t Clamp(int32_t val) {
>+  int v = clamp0(val);
>+  return (uint32_t)(clamp255(v));
>+}
>+
>+static __inline uint32_t Clamp10(int32_t val) {
>+  int v = clamp0(val);
>+  return (uint32_t)(clamp1023(v));
>+}
> 
>-#ifdef LIBYUV_LITTLE_ENDIAN
>-#define WRITEWORD(p, v) *(uint32*)(p) = v
>+// Little Endian
>+#if defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
>+    defined(_M_IX86) || defined(__arm__) || defined(_M_ARM) ||     \
>+    (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
>+#define WRITEWORD(p, v) *(uint32_t*)(p) = v
> #else
>-static inline void WRITEWORD(uint8* p, uint32 v) {
>-  p[0] = (uint8)(v & 255);
>-  p[1] = (uint8)((v >> 8) & 255);
>-  p[2] = (uint8)((v >> 16) & 255);
>-  p[3] = (uint8)((v >> 24) & 255);
>+static inline void WRITEWORD(uint8_t* p, uint32_t v) {
>+  p[0] = (uint8_t)(v & 255);
>+  p[1] = (uint8_t)((v >> 8) & 255);
>+  p[2] = (uint8_t)((v >> 16) & 255);
>+  p[3] = (uint8_t)((v >> 24) & 255);
> }
> #endif
> 
>-void RGB24ToARGBRow_C(const uint8* src_rgb24, uint8* dst_argb, int width) {
>+void RGB24ToARGBRow_C(const uint8_t* src_rgb24, uint8_t* dst_argb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_rgb24[0];
>-    uint8 g = src_rgb24[1];
>-    uint8 r = src_rgb24[2];
>+    uint8_t b = src_rgb24[0];
>+    uint8_t g = src_rgb24[1];
>+    uint8_t r = src_rgb24[2];
>     dst_argb[0] = b;
>     dst_argb[1] = g;
>     dst_argb[2] = r;
>@@ -85,12 +96,12 @@ void RGB24ToARGBRow_C(const uint8* src_rgb24, uint8* dst_argb, int width) {
>   }
> }
> 
>-void RAWToARGBRow_C(const uint8* src_raw, uint8* dst_argb, int width) {
>+void RAWToARGBRow_C(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 r = src_raw[0];
>-    uint8 g = src_raw[1];
>-    uint8 b = src_raw[2];
>+    uint8_t r = src_raw[0];
>+    uint8_t g = src_raw[1];
>+    uint8_t b = src_raw[2];
>     dst_argb[0] = b;
>     dst_argb[1] = g;
>     dst_argb[2] = r;
>@@ -100,12 +111,12 @@ void RAWToARGBRow_C(const uint8* src_raw, uint8* dst_argb, int width) {
>   }
> }
> 
>-void RAWToRGB24Row_C(const uint8* src_raw, uint8* dst_rgb24, int width) {
>+void RAWToRGB24Row_C(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 r = src_raw[0];
>-    uint8 g = src_raw[1];
>-    uint8 b = src_raw[2];
>+    uint8_t r = src_raw[0];
>+    uint8_t g = src_raw[1];
>+    uint8_t b = src_raw[2];
>     dst_rgb24[0] = b;
>     dst_rgb24[1] = g;
>     dst_rgb24[2] = r;
>@@ -114,12 +125,14 @@ void RAWToRGB24Row_C(const uint8* src_raw, uint8* dst_rgb24, int width) {
>   }
> }
> 
>-void RGB565ToARGBRow_C(const uint8* src_rgb565, uint8* dst_argb, int width) {
>+void RGB565ToARGBRow_C(const uint8_t* src_rgb565,
>+                       uint8_t* dst_argb,
>+                       int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_rgb565[0] & 0x1f;
>-    uint8 g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>-    uint8 r = src_rgb565[1] >> 3;
>+    uint8_t b = src_rgb565[0] & 0x1f;
>+    uint8_t g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>+    uint8_t r = src_rgb565[1] >> 3;
>     dst_argb[0] = (b << 3) | (b >> 2);
>     dst_argb[1] = (g << 2) | (g >> 4);
>     dst_argb[2] = (r << 3) | (r >> 2);
>@@ -129,15 +142,15 @@ void RGB565ToARGBRow_C(const uint8* src_rgb565, uint8* dst_argb, int width) {
>   }
> }
> 
>-void ARGB1555ToARGBRow_C(const uint8* src_argb1555,
>-                         uint8* dst_argb,
>+void ARGB1555ToARGBRow_C(const uint8_t* src_argb1555,
>+                         uint8_t* dst_argb,
>                          int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb1555[0] & 0x1f;
>-    uint8 g = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>-    uint8 r = (src_argb1555[1] & 0x7c) >> 2;
>-    uint8 a = src_argb1555[1] >> 7;
>+    uint8_t b = src_argb1555[0] & 0x1f;
>+    uint8_t g = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>+    uint8_t r = (src_argb1555[1] & 0x7c) >> 2;
>+    uint8_t a = src_argb1555[1] >> 7;
>     dst_argb[0] = (b << 3) | (b >> 2);
>     dst_argb[1] = (g << 3) | (g >> 2);
>     dst_argb[2] = (r << 3) | (r >> 2);
>@@ -147,15 +160,15 @@ void ARGB1555ToARGBRow_C(const uint8* src_argb1555,
>   }
> }
> 
>-void ARGB4444ToARGBRow_C(const uint8* src_argb4444,
>-                         uint8* dst_argb,
>+void ARGB4444ToARGBRow_C(const uint8_t* src_argb4444,
>+                         uint8_t* dst_argb,
>                          int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb4444[0] & 0x0f;
>-    uint8 g = src_argb4444[0] >> 4;
>-    uint8 r = src_argb4444[1] & 0x0f;
>-    uint8 a = src_argb4444[1] >> 4;
>+    uint8_t b = src_argb4444[0] & 0x0f;
>+    uint8_t g = src_argb4444[0] >> 4;
>+    uint8_t r = src_argb4444[1] & 0x0f;
>+    uint8_t a = src_argb4444[1] >> 4;
>     dst_argb[0] = (b << 4) | b;
>     dst_argb[1] = (g << 4) | g;
>     dst_argb[2] = (r << 4) | r;
>@@ -165,12 +178,53 @@ void ARGB4444ToARGBRow_C(const uint8* src_argb4444,
>   }
> }
> 
>-void ARGBToRGB24Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void AR30ToARGBRow_C(const uint8_t* src_ar30, uint8_t* dst_argb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb[0];
>-    uint8 g = src_argb[1];
>-    uint8 r = src_argb[2];
>+    uint32_t ar30 = *(uint32_t*)src_ar30;
>+    uint32_t b = (ar30 >> 2) & 0xff;
>+    uint32_t g = (ar30 >> 12) & 0xff;
>+    uint32_t r = (ar30 >> 22) & 0xff;
>+    uint32_t a = (ar30 >> 30) * 0x55;  // Replicate 2 bits to 8 bits.
>+    *(uint32_t*)(dst_argb) = b | (g << 8) | (r << 16) | (a << 24);
>+    dst_argb += 4;
>+    src_ar30 += 4;
>+  }
>+}
>+
>+void AR30ToABGRRow_C(const uint8_t* src_ar30, uint8_t* dst_abgr, int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    uint32_t ar30 = *(uint32_t*)src_ar30;
>+    uint32_t b = (ar30 >> 2) & 0xff;
>+    uint32_t g = (ar30 >> 12) & 0xff;
>+    uint32_t r = (ar30 >> 22) & 0xff;
>+    uint32_t a = (ar30 >> 30) * 0x55;  // Replicate 2 bits to 8 bits.
>+    *(uint32_t*)(dst_abgr) = r | (g << 8) | (b << 16) | (a << 24);
>+    dst_abgr += 4;
>+    src_ar30 += 4;
>+  }
>+}
>+
>+void AR30ToAB30Row_C(const uint8_t* src_ar30, uint8_t* dst_ab30, int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    uint32_t ar30 = *(uint32_t*)src_ar30;
>+    uint32_t b = ar30 & 0x3ff;
>+    uint32_t ga = ar30 & 0xc00ffc00;
>+    uint32_t r = (ar30 >> 20) & 0x3ff;
>+    *(uint32_t*)(dst_ab30) = r | ga | (b << 20);
>+    dst_ab30 += 4;
>+    src_ar30 += 4;
>+  }
>+}
>+
>+void ARGBToRGB24Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    uint8_t b = src_argb[0];
>+    uint8_t g = src_argb[1];
>+    uint8_t r = src_argb[2];
>     dst_rgb[0] = b;
>     dst_rgb[1] = g;
>     dst_rgb[2] = r;
>@@ -179,12 +233,12 @@ void ARGBToRGB24Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToRAWRow_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToRAWRow_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb[0];
>-    uint8 g = src_argb[1];
>-    uint8 r = src_argb[2];
>+    uint8_t b = src_argb[0];
>+    uint8_t g = src_argb[1];
>+    uint8_t r = src_argb[2];
>     dst_rgb[0] = r;
>     dst_rgb[1] = g;
>     dst_rgb[2] = b;
>@@ -193,25 +247,25 @@ void ARGBToRAWRow_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToRGB565Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToRGB565Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_argb[0] >> 3;
>-    uint8 g0 = src_argb[1] >> 2;
>-    uint8 r0 = src_argb[2] >> 3;
>-    uint8 b1 = src_argb[4] >> 3;
>-    uint8 g1 = src_argb[5] >> 2;
>-    uint8 r1 = src_argb[6] >> 3;
>+    uint8_t b0 = src_argb[0] >> 3;
>+    uint8_t g0 = src_argb[1] >> 2;
>+    uint8_t r0 = src_argb[2] >> 3;
>+    uint8_t b1 = src_argb[4] >> 3;
>+    uint8_t g1 = src_argb[5] >> 2;
>+    uint8_t r1 = src_argb[6] >> 3;
>     WRITEWORD(dst_rgb, b0 | (g0 << 5) | (r0 << 11) | (b1 << 16) | (g1 << 21) |
>                            (r1 << 27));
>     dst_rgb += 4;
>     src_argb += 8;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_argb[0] >> 3;
>-    uint8 g0 = src_argb[1] >> 2;
>-    uint8 r0 = src_argb[2] >> 3;
>-    *(uint16*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 11);
>+    uint8_t b0 = src_argb[0] >> 3;
>+    uint8_t g0 = src_argb[1] >> 2;
>+    uint8_t r0 = src_argb[2] >> 3;
>+    *(uint16_t*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 11);
>   }
> }
> 
>@@ -223,20 +277,20 @@ void ARGBToRGB565Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
> // endian will not affect order of the original matrix.  But the dither4
> // will containing the first pixel in the lower byte for little endian
> // or the upper byte for big endian.
>-void ARGBToRGB565DitherRow_C(const uint8* src_argb,
>-                             uint8* dst_rgb,
>-                             const uint32 dither4,
>+void ARGBToRGB565DitherRow_C(const uint8_t* src_argb,
>+                             uint8_t* dst_rgb,
>+                             const uint32_t dither4,
>                              int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     int dither0 = ((const unsigned char*)(&dither4))[x & 3];
>     int dither1 = ((const unsigned char*)(&dither4))[(x + 1) & 3];
>-    uint8 b0 = clamp255(src_argb[0] + dither0) >> 3;
>-    uint8 g0 = clamp255(src_argb[1] + dither0) >> 2;
>-    uint8 r0 = clamp255(src_argb[2] + dither0) >> 3;
>-    uint8 b1 = clamp255(src_argb[4] + dither1) >> 3;
>-    uint8 g1 = clamp255(src_argb[5] + dither1) >> 2;
>-    uint8 r1 = clamp255(src_argb[6] + dither1) >> 3;
>+    uint8_t b0 = clamp255(src_argb[0] + dither0) >> 3;
>+    uint8_t g0 = clamp255(src_argb[1] + dither0) >> 2;
>+    uint8_t r0 = clamp255(src_argb[2] + dither0) >> 3;
>+    uint8_t b1 = clamp255(src_argb[4] + dither1) >> 3;
>+    uint8_t g1 = clamp255(src_argb[5] + dither1) >> 2;
>+    uint8_t r1 = clamp255(src_argb[6] + dither1) >> 3;
>     WRITEWORD(dst_rgb, b0 | (g0 << 5) | (r0 << 11) | (b1 << 16) | (g1 << 21) |
>                            (r1 << 27));
>     dst_rgb += 4;
>@@ -244,112 +298,138 @@ void ARGBToRGB565DitherRow_C(const uint8* src_argb,
>   }
>   if (width & 1) {
>     int dither0 = ((const unsigned char*)(&dither4))[(width - 1) & 3];
>-    uint8 b0 = clamp255(src_argb[0] + dither0) >> 3;
>-    uint8 g0 = clamp255(src_argb[1] + dither0) >> 2;
>-    uint8 r0 = clamp255(src_argb[2] + dither0) >> 3;
>-    *(uint16*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 11);
>+    uint8_t b0 = clamp255(src_argb[0] + dither0) >> 3;
>+    uint8_t g0 = clamp255(src_argb[1] + dither0) >> 2;
>+    uint8_t r0 = clamp255(src_argb[2] + dither0) >> 3;
>+    *(uint16_t*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 11);
>   }
> }
> 
>-void ARGBToARGB1555Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToARGB1555Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_argb[0] >> 3;
>-    uint8 g0 = src_argb[1] >> 3;
>-    uint8 r0 = src_argb[2] >> 3;
>-    uint8 a0 = src_argb[3] >> 7;
>-    uint8 b1 = src_argb[4] >> 3;
>-    uint8 g1 = src_argb[5] >> 3;
>-    uint8 r1 = src_argb[6] >> 3;
>-    uint8 a1 = src_argb[7] >> 7;
>-    *(uint32*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 10) | (a0 << 15) |
>-                          (b1 << 16) | (g1 << 21) | (r1 << 26) | (a1 << 31);
>+    uint8_t b0 = src_argb[0] >> 3;
>+    uint8_t g0 = src_argb[1] >> 3;
>+    uint8_t r0 = src_argb[2] >> 3;
>+    uint8_t a0 = src_argb[3] >> 7;
>+    uint8_t b1 = src_argb[4] >> 3;
>+    uint8_t g1 = src_argb[5] >> 3;
>+    uint8_t r1 = src_argb[6] >> 3;
>+    uint8_t a1 = src_argb[7] >> 7;
>+    *(uint32_t*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 10) | (a0 << 15) |
>+                            (b1 << 16) | (g1 << 21) | (r1 << 26) | (a1 << 31);
>     dst_rgb += 4;
>     src_argb += 8;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_argb[0] >> 3;
>-    uint8 g0 = src_argb[1] >> 3;
>-    uint8 r0 = src_argb[2] >> 3;
>-    uint8 a0 = src_argb[3] >> 7;
>-    *(uint16*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 10) | (a0 << 15);
>+    uint8_t b0 = src_argb[0] >> 3;
>+    uint8_t g0 = src_argb[1] >> 3;
>+    uint8_t r0 = src_argb[2] >> 3;
>+    uint8_t a0 = src_argb[3] >> 7;
>+    *(uint16_t*)(dst_rgb) = b0 | (g0 << 5) | (r0 << 10) | (a0 << 15);
>   }
> }
> 
>-void ARGBToARGB4444Row_C(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToARGB4444Row_C(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_argb[0] >> 4;
>-    uint8 g0 = src_argb[1] >> 4;
>-    uint8 r0 = src_argb[2] >> 4;
>-    uint8 a0 = src_argb[3] >> 4;
>-    uint8 b1 = src_argb[4] >> 4;
>-    uint8 g1 = src_argb[5] >> 4;
>-    uint8 r1 = src_argb[6] >> 4;
>-    uint8 a1 = src_argb[7] >> 4;
>-    *(uint32*)(dst_rgb) = b0 | (g0 << 4) | (r0 << 8) | (a0 << 12) | (b1 << 16) |
>-                          (g1 << 20) | (r1 << 24) | (a1 << 28);
>+    uint8_t b0 = src_argb[0] >> 4;
>+    uint8_t g0 = src_argb[1] >> 4;
>+    uint8_t r0 = src_argb[2] >> 4;
>+    uint8_t a0 = src_argb[3] >> 4;
>+    uint8_t b1 = src_argb[4] >> 4;
>+    uint8_t g1 = src_argb[5] >> 4;
>+    uint8_t r1 = src_argb[6] >> 4;
>+    uint8_t a1 = src_argb[7] >> 4;
>+    *(uint32_t*)(dst_rgb) = b0 | (g0 << 4) | (r0 << 8) | (a0 << 12) |
>+                            (b1 << 16) | (g1 << 20) | (r1 << 24) | (a1 << 28);
>     dst_rgb += 4;
>     src_argb += 8;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_argb[0] >> 4;
>-    uint8 g0 = src_argb[1] >> 4;
>-    uint8 r0 = src_argb[2] >> 4;
>-    uint8 a0 = src_argb[3] >> 4;
>-    *(uint16*)(dst_rgb) = b0 | (g0 << 4) | (r0 << 8) | (a0 << 12);
>+    uint8_t b0 = src_argb[0] >> 4;
>+    uint8_t g0 = src_argb[1] >> 4;
>+    uint8_t r0 = src_argb[2] >> 4;
>+    uint8_t a0 = src_argb[3] >> 4;
>+    *(uint16_t*)(dst_rgb) = b0 | (g0 << 4) | (r0 << 8) | (a0 << 12);
>+  }
>+}
>+
>+void ABGRToAR30Row_C(const uint8_t* src_abgr, uint8_t* dst_ar30, int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    uint32_t b0 = (src_abgr[0] >> 6) | ((uint32_t)(src_abgr[0]) << 2);
>+    uint32_t g0 = (src_abgr[1] >> 6) | ((uint32_t)(src_abgr[1]) << 2);
>+    uint32_t r0 = (src_abgr[2] >> 6) | ((uint32_t)(src_abgr[2]) << 2);
>+    uint32_t a0 = (src_abgr[3] >> 6);
>+    *(uint32_t*)(dst_ar30) = r0 | (g0 << 10) | (b0 << 20) | (a0 << 30);
>+    dst_ar30 += 4;
>+    src_abgr += 4;
>   }
> }
> 
>-static __inline int RGBToY(uint8 r, uint8 g, uint8 b) {
>+void ARGBToAR30Row_C(const uint8_t* src_argb, uint8_t* dst_ar30, int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    uint32_t b0 = (src_argb[0] >> 6) | ((uint32_t)(src_argb[0]) << 2);
>+    uint32_t g0 = (src_argb[1] >> 6) | ((uint32_t)(src_argb[1]) << 2);
>+    uint32_t r0 = (src_argb[2] >> 6) | ((uint32_t)(src_argb[2]) << 2);
>+    uint32_t a0 = (src_argb[3] >> 6);
>+    *(uint32_t*)(dst_ar30) = b0 | (g0 << 10) | (r0 << 20) | (a0 << 30);
>+    dst_ar30 += 4;
>+    src_argb += 4;
>+  }
>+}
>+
>+static __inline int RGBToY(uint8_t r, uint8_t g, uint8_t b) {
>   return (66 * r + 129 * g + 25 * b + 0x1080) >> 8;
> }
> 
>-static __inline int RGBToU(uint8 r, uint8 g, uint8 b) {
>+static __inline int RGBToU(uint8_t r, uint8_t g, uint8_t b) {
>   return (112 * b - 74 * g - 38 * r + 0x8080) >> 8;
> }
>-static __inline int RGBToV(uint8 r, uint8 g, uint8 b) {
>+static __inline int RGBToV(uint8_t r, uint8_t g, uint8_t b) {
>   return (112 * r - 94 * g - 18 * b + 0x8080) >> 8;
> }
> 
> // ARGBToY_C and ARGBToUV_C
>-#define MAKEROWY(NAME, R, G, B, BPP)                                     \
>-  void NAME##ToYRow_C(const uint8* src_argb0, uint8* dst_y, int width) { \
>-    int x;                                                               \
>-    for (x = 0; x < width; ++x) {                                        \
>-      dst_y[0] = RGBToY(src_argb0[R], src_argb0[G], src_argb0[B]);       \
>-      src_argb0 += BPP;                                                  \
>-      dst_y += 1;                                                        \
>-    }                                                                    \
>-  }                                                                      \
>-  void NAME##ToUVRow_C(const uint8* src_rgb0, int src_stride_rgb,        \
>-                       uint8* dst_u, uint8* dst_v, int width) {          \
>-    const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;                   \
>-    int x;                                                               \
>-    for (x = 0; x < width - 1; x += 2) {                                 \
>-      uint8 ab = (src_rgb0[B] + src_rgb0[B + BPP] + src_rgb1[B] +        \
>-                  src_rgb1[B + BPP]) >>                                  \
>-                 2;                                                      \
>-      uint8 ag = (src_rgb0[G] + src_rgb0[G + BPP] + src_rgb1[G] +        \
>-                  src_rgb1[G + BPP]) >>                                  \
>-                 2;                                                      \
>-      uint8 ar = (src_rgb0[R] + src_rgb0[R + BPP] + src_rgb1[R] +        \
>-                  src_rgb1[R + BPP]) >>                                  \
>-                 2;                                                      \
>-      dst_u[0] = RGBToU(ar, ag, ab);                                     \
>-      dst_v[0] = RGBToV(ar, ag, ab);                                     \
>-      src_rgb0 += BPP * 2;                                               \
>-      src_rgb1 += BPP * 2;                                               \
>-      dst_u += 1;                                                        \
>-      dst_v += 1;                                                        \
>-    }                                                                    \
>-    if (width & 1) {                                                     \
>-      uint8 ab = (src_rgb0[B] + src_rgb1[B]) >> 1;                       \
>-      uint8 ag = (src_rgb0[G] + src_rgb1[G]) >> 1;                       \
>-      uint8 ar = (src_rgb0[R] + src_rgb1[R]) >> 1;                       \
>-      dst_u[0] = RGBToU(ar, ag, ab);                                     \
>-      dst_v[0] = RGBToV(ar, ag, ab);                                     \
>-    }                                                                    \
>+#define MAKEROWY(NAME, R, G, B, BPP)                                         \
>+  void NAME##ToYRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width) { \
>+    int x;                                                                   \
>+    for (x = 0; x < width; ++x) {                                            \
>+      dst_y[0] = RGBToY(src_argb0[R], src_argb0[G], src_argb0[B]);           \
>+      src_argb0 += BPP;                                                      \
>+      dst_y += 1;                                                            \
>+    }                                                                        \
>+  }                                                                          \
>+  void NAME##ToUVRow_C(const uint8_t* src_rgb0, int src_stride_rgb,          \
>+                       uint8_t* dst_u, uint8_t* dst_v, int width) {          \
>+    const uint8_t* src_rgb1 = src_rgb0 + src_stride_rgb;                     \
>+    int x;                                                                   \
>+    for (x = 0; x < width - 1; x += 2) {                                     \
>+      uint8_t ab = (src_rgb0[B] + src_rgb0[B + BPP] + src_rgb1[B] +          \
>+                    src_rgb1[B + BPP]) >>                                    \
>+                   2;                                                        \
>+      uint8_t ag = (src_rgb0[G] + src_rgb0[G + BPP] + src_rgb1[G] +          \
>+                    src_rgb1[G + BPP]) >>                                    \
>+                   2;                                                        \
>+      uint8_t ar = (src_rgb0[R] + src_rgb0[R + BPP] + src_rgb1[R] +          \
>+                    src_rgb1[R + BPP]) >>                                    \
>+                   2;                                                        \
>+      dst_u[0] = RGBToU(ar, ag, ab);                                         \
>+      dst_v[0] = RGBToV(ar, ag, ab);                                         \
>+      src_rgb0 += BPP * 2;                                                   \
>+      src_rgb1 += BPP * 2;                                                   \
>+      dst_u += 1;                                                            \
>+      dst_v += 1;                                                            \
>+    }                                                                        \
>+    if (width & 1) {                                                         \
>+      uint8_t ab = (src_rgb0[B] + src_rgb1[B]) >> 1;                         \
>+      uint8_t ag = (src_rgb0[G] + src_rgb1[G]) >> 1;                         \
>+      uint8_t ar = (src_rgb0[R] + src_rgb1[R]) >> 1;                         \
>+      dst_u[0] = RGBToU(ar, ag, ab);                                         \
>+      dst_v[0] = RGBToV(ar, ag, ab);                                         \
>+    }                                                                        \
>   }
> 
> MAKEROWY(ARGB, 2, 1, 0, 4)
>@@ -385,65 +465,65 @@ MAKEROWY(RAW, 0, 1, 2, 3)
> // g -0.41869 * 255 = -106.76595 = -107
> // r  0.50000 * 255 = 127.5 = 127
> 
>-static __inline int RGBToYJ(uint8 r, uint8 g, uint8 b) {
>+static __inline int RGBToYJ(uint8_t r, uint8_t g, uint8_t b) {
>   return (38 * r + 75 * g + 15 * b + 64) >> 7;
> }
> 
>-static __inline int RGBToUJ(uint8 r, uint8 g, uint8 b) {
>+static __inline int RGBToUJ(uint8_t r, uint8_t g, uint8_t b) {
>   return (127 * b - 84 * g - 43 * r + 0x8080) >> 8;
> }
>-static __inline int RGBToVJ(uint8 r, uint8 g, uint8 b) {
>+static __inline int RGBToVJ(uint8_t r, uint8_t g, uint8_t b) {
>   return (127 * r - 107 * g - 20 * b + 0x8080) >> 8;
> }
> 
> #define AVGB(a, b) (((a) + (b) + 1) >> 1)
> 
> // ARGBToYJ_C and ARGBToUVJ_C
>-#define MAKEROWYJ(NAME, R, G, B, BPP)                                     \
>-  void NAME##ToYJRow_C(const uint8* src_argb0, uint8* dst_y, int width) { \
>-    int x;                                                                \
>-    for (x = 0; x < width; ++x) {                                         \
>-      dst_y[0] = RGBToYJ(src_argb0[R], src_argb0[G], src_argb0[B]);       \
>-      src_argb0 += BPP;                                                   \
>-      dst_y += 1;                                                         \
>-    }                                                                     \
>-  }                                                                       \
>-  void NAME##ToUVJRow_C(const uint8* src_rgb0, int src_stride_rgb,        \
>-                        uint8* dst_u, uint8* dst_v, int width) {          \
>-    const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;                    \
>-    int x;                                                                \
>-    for (x = 0; x < width - 1; x += 2) {                                  \
>-      uint8 ab = AVGB(AVGB(src_rgb0[B], src_rgb1[B]),                     \
>-                      AVGB(src_rgb0[B + BPP], src_rgb1[B + BPP]));        \
>-      uint8 ag = AVGB(AVGB(src_rgb0[G], src_rgb1[G]),                     \
>-                      AVGB(src_rgb0[G + BPP], src_rgb1[G + BPP]));        \
>-      uint8 ar = AVGB(AVGB(src_rgb0[R], src_rgb1[R]),                     \
>-                      AVGB(src_rgb0[R + BPP], src_rgb1[R + BPP]));        \
>-      dst_u[0] = RGBToUJ(ar, ag, ab);                                     \
>-      dst_v[0] = RGBToVJ(ar, ag, ab);                                     \
>-      src_rgb0 += BPP * 2;                                                \
>-      src_rgb1 += BPP * 2;                                                \
>-      dst_u += 1;                                                         \
>-      dst_v += 1;                                                         \
>-    }                                                                     \
>-    if (width & 1) {                                                      \
>-      uint8 ab = AVGB(src_rgb0[B], src_rgb1[B]);                          \
>-      uint8 ag = AVGB(src_rgb0[G], src_rgb1[G]);                          \
>-      uint8 ar = AVGB(src_rgb0[R], src_rgb1[R]);                          \
>-      dst_u[0] = RGBToUJ(ar, ag, ab);                                     \
>-      dst_v[0] = RGBToVJ(ar, ag, ab);                                     \
>-    }                                                                     \
>+#define MAKEROWYJ(NAME, R, G, B, BPP)                                         \
>+  void NAME##ToYJRow_C(const uint8_t* src_argb0, uint8_t* dst_y, int width) { \
>+    int x;                                                                    \
>+    for (x = 0; x < width; ++x) {                                             \
>+      dst_y[0] = RGBToYJ(src_argb0[R], src_argb0[G], src_argb0[B]);           \
>+      src_argb0 += BPP;                                                       \
>+      dst_y += 1;                                                             \
>+    }                                                                         \
>+  }                                                                           \
>+  void NAME##ToUVJRow_C(const uint8_t* src_rgb0, int src_stride_rgb,          \
>+                        uint8_t* dst_u, uint8_t* dst_v, int width) {          \
>+    const uint8_t* src_rgb1 = src_rgb0 + src_stride_rgb;                      \
>+    int x;                                                                    \
>+    for (x = 0; x < width - 1; x += 2) {                                      \
>+      uint8_t ab = AVGB(AVGB(src_rgb0[B], src_rgb1[B]),                       \
>+                        AVGB(src_rgb0[B + BPP], src_rgb1[B + BPP]));          \
>+      uint8_t ag = AVGB(AVGB(src_rgb0[G], src_rgb1[G]),                       \
>+                        AVGB(src_rgb0[G + BPP], src_rgb1[G + BPP]));          \
>+      uint8_t ar = AVGB(AVGB(src_rgb0[R], src_rgb1[R]),                       \
>+                        AVGB(src_rgb0[R + BPP], src_rgb1[R + BPP]));          \
>+      dst_u[0] = RGBToUJ(ar, ag, ab);                                         \
>+      dst_v[0] = RGBToVJ(ar, ag, ab);                                         \
>+      src_rgb0 += BPP * 2;                                                    \
>+      src_rgb1 += BPP * 2;                                                    \
>+      dst_u += 1;                                                             \
>+      dst_v += 1;                                                             \
>+    }                                                                         \
>+    if (width & 1) {                                                          \
>+      uint8_t ab = AVGB(src_rgb0[B], src_rgb1[B]);                            \
>+      uint8_t ag = AVGB(src_rgb0[G], src_rgb1[G]);                            \
>+      uint8_t ar = AVGB(src_rgb0[R], src_rgb1[R]);                            \
>+      dst_u[0] = RGBToUJ(ar, ag, ab);                                         \
>+      dst_v[0] = RGBToVJ(ar, ag, ab);                                         \
>+    }                                                                         \
>   }
> 
> MAKEROWYJ(ARGB, 2, 1, 0, 4)
> #undef MAKEROWYJ
> 
>-void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width) {
>+void RGB565ToYRow_C(const uint8_t* src_rgb565, uint8_t* dst_y, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_rgb565[0] & 0x1f;
>-    uint8 g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>-    uint8 r = src_rgb565[1] >> 3;
>+    uint8_t b = src_rgb565[0] & 0x1f;
>+    uint8_t g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>+    uint8_t r = src_rgb565[1] >> 3;
>     b = (b << 3) | (b >> 2);
>     g = (g << 2) | (g >> 4);
>     r = (r << 3) | (r >> 2);
>@@ -453,12 +533,12 @@ void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width) {
>   }
> }
> 
>-void ARGB1555ToYRow_C(const uint8* src_argb1555, uint8* dst_y, int width) {
>+void ARGB1555ToYRow_C(const uint8_t* src_argb1555, uint8_t* dst_y, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb1555[0] & 0x1f;
>-    uint8 g = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>-    uint8 r = (src_argb1555[1] & 0x7c) >> 2;
>+    uint8_t b = src_argb1555[0] & 0x1f;
>+    uint8_t g = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>+    uint8_t r = (src_argb1555[1] & 0x7c) >> 2;
>     b = (b << 3) | (b >> 2);
>     g = (g << 3) | (g >> 2);
>     r = (r << 3) | (r >> 2);
>@@ -468,12 +548,12 @@ void ARGB1555ToYRow_C(const uint8* src_argb1555, uint8* dst_y, int width) {
>   }
> }
> 
>-void ARGB4444ToYRow_C(const uint8* src_argb4444, uint8* dst_y, int width) {
>+void ARGB4444ToYRow_C(const uint8_t* src_argb4444, uint8_t* dst_y, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 b = src_argb4444[0] & 0x0f;
>-    uint8 g = src_argb4444[0] >> 4;
>-    uint8 r = src_argb4444[1] & 0x0f;
>+    uint8_t b = src_argb4444[0] & 0x0f;
>+    uint8_t g = src_argb4444[0] >> 4;
>+    uint8_t r = src_argb4444[1] & 0x0f;
>     b = (b << 4) | b;
>     g = (g << 4) | g;
>     r = (r << 4) | r;
>@@ -483,29 +563,29 @@ void ARGB4444ToYRow_C(const uint8* src_argb4444, uint8* dst_y, int width) {
>   }
> }
> 
>-void RGB565ToUVRow_C(const uint8* src_rgb565,
>+void RGB565ToUVRow_C(const uint8_t* src_rgb565,
>                      int src_stride_rgb565,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  const uint8* next_rgb565 = src_rgb565 + src_stride_rgb565;
>+  const uint8_t* next_rgb565 = src_rgb565 + src_stride_rgb565;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_rgb565[0] & 0x1f;
>-    uint8 g0 = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>-    uint8 r0 = src_rgb565[1] >> 3;
>-    uint8 b1 = src_rgb565[2] & 0x1f;
>-    uint8 g1 = (src_rgb565[2] >> 5) | ((src_rgb565[3] & 0x07) << 3);
>-    uint8 r1 = src_rgb565[3] >> 3;
>-    uint8 b2 = next_rgb565[0] & 0x1f;
>-    uint8 g2 = (next_rgb565[0] >> 5) | ((next_rgb565[1] & 0x07) << 3);
>-    uint8 r2 = next_rgb565[1] >> 3;
>-    uint8 b3 = next_rgb565[2] & 0x1f;
>-    uint8 g3 = (next_rgb565[2] >> 5) | ((next_rgb565[3] & 0x07) << 3);
>-    uint8 r3 = next_rgb565[3] >> 3;
>-    uint8 b = (b0 + b1 + b2 + b3);  // 565 * 4 = 787.
>-    uint8 g = (g0 + g1 + g2 + g3);
>-    uint8 r = (r0 + r1 + r2 + r3);
>+    uint8_t b0 = src_rgb565[0] & 0x1f;
>+    uint8_t g0 = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>+    uint8_t r0 = src_rgb565[1] >> 3;
>+    uint8_t b1 = src_rgb565[2] & 0x1f;
>+    uint8_t g1 = (src_rgb565[2] >> 5) | ((src_rgb565[3] & 0x07) << 3);
>+    uint8_t r1 = src_rgb565[3] >> 3;
>+    uint8_t b2 = next_rgb565[0] & 0x1f;
>+    uint8_t g2 = (next_rgb565[0] >> 5) | ((next_rgb565[1] & 0x07) << 3);
>+    uint8_t r2 = next_rgb565[1] >> 3;
>+    uint8_t b3 = next_rgb565[2] & 0x1f;
>+    uint8_t g3 = (next_rgb565[2] >> 5) | ((next_rgb565[3] & 0x07) << 3);
>+    uint8_t r3 = next_rgb565[3] >> 3;
>+    uint8_t b = (b0 + b1 + b2 + b3);  // 565 * 4 = 787.
>+    uint8_t g = (g0 + g1 + g2 + g3);
>+    uint8_t r = (r0 + r1 + r2 + r3);
>     b = (b << 1) | (b >> 6);  // 787 -> 888.
>     r = (r << 1) | (r >> 6);
>     dst_u[0] = RGBToU(r, g, b);
>@@ -516,15 +596,15 @@ void RGB565ToUVRow_C(const uint8* src_rgb565,
>     dst_v += 1;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_rgb565[0] & 0x1f;
>-    uint8 g0 = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>-    uint8 r0 = src_rgb565[1] >> 3;
>-    uint8 b2 = next_rgb565[0] & 0x1f;
>-    uint8 g2 = (next_rgb565[0] >> 5) | ((next_rgb565[1] & 0x07) << 3);
>-    uint8 r2 = next_rgb565[1] >> 3;
>-    uint8 b = (b0 + b2);  // 565 * 2 = 676.
>-    uint8 g = (g0 + g2);
>-    uint8 r = (r0 + r2);
>+    uint8_t b0 = src_rgb565[0] & 0x1f;
>+    uint8_t g0 = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
>+    uint8_t r0 = src_rgb565[1] >> 3;
>+    uint8_t b2 = next_rgb565[0] & 0x1f;
>+    uint8_t g2 = (next_rgb565[0] >> 5) | ((next_rgb565[1] & 0x07) << 3);
>+    uint8_t r2 = next_rgb565[1] >> 3;
>+    uint8_t b = (b0 + b2);  // 565 * 2 = 676.
>+    uint8_t g = (g0 + g2);
>+    uint8_t r = (r0 + r2);
>     b = (b << 2) | (b >> 4);  // 676 -> 888
>     g = (g << 1) | (g >> 6);
>     r = (r << 2) | (r >> 4);
>@@ -533,29 +613,29 @@ void RGB565ToUVRow_C(const uint8* src_rgb565,
>   }
> }
> 
>-void ARGB1555ToUVRow_C(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_C(const uint8_t* src_argb1555,
>                        int src_stride_argb1555,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  const uint8* next_argb1555 = src_argb1555 + src_stride_argb1555;
>+  const uint8_t* next_argb1555 = src_argb1555 + src_stride_argb1555;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_argb1555[0] & 0x1f;
>-    uint8 g0 = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>-    uint8 r0 = (src_argb1555[1] & 0x7c) >> 2;
>-    uint8 b1 = src_argb1555[2] & 0x1f;
>-    uint8 g1 = (src_argb1555[2] >> 5) | ((src_argb1555[3] & 0x03) << 3);
>-    uint8 r1 = (src_argb1555[3] & 0x7c) >> 2;
>-    uint8 b2 = next_argb1555[0] & 0x1f;
>-    uint8 g2 = (next_argb1555[0] >> 5) | ((next_argb1555[1] & 0x03) << 3);
>-    uint8 r2 = (next_argb1555[1] & 0x7c) >> 2;
>-    uint8 b3 = next_argb1555[2] & 0x1f;
>-    uint8 g3 = (next_argb1555[2] >> 5) | ((next_argb1555[3] & 0x03) << 3);
>-    uint8 r3 = (next_argb1555[3] & 0x7c) >> 2;
>-    uint8 b = (b0 + b1 + b2 + b3);  // 555 * 4 = 777.
>-    uint8 g = (g0 + g1 + g2 + g3);
>-    uint8 r = (r0 + r1 + r2 + r3);
>+    uint8_t b0 = src_argb1555[0] & 0x1f;
>+    uint8_t g0 = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>+    uint8_t r0 = (src_argb1555[1] & 0x7c) >> 2;
>+    uint8_t b1 = src_argb1555[2] & 0x1f;
>+    uint8_t g1 = (src_argb1555[2] >> 5) | ((src_argb1555[3] & 0x03) << 3);
>+    uint8_t r1 = (src_argb1555[3] & 0x7c) >> 2;
>+    uint8_t b2 = next_argb1555[0] & 0x1f;
>+    uint8_t g2 = (next_argb1555[0] >> 5) | ((next_argb1555[1] & 0x03) << 3);
>+    uint8_t r2 = (next_argb1555[1] & 0x7c) >> 2;
>+    uint8_t b3 = next_argb1555[2] & 0x1f;
>+    uint8_t g3 = (next_argb1555[2] >> 5) | ((next_argb1555[3] & 0x03) << 3);
>+    uint8_t r3 = (next_argb1555[3] & 0x7c) >> 2;
>+    uint8_t b = (b0 + b1 + b2 + b3);  // 555 * 4 = 777.
>+    uint8_t g = (g0 + g1 + g2 + g3);
>+    uint8_t r = (r0 + r1 + r2 + r3);
>     b = (b << 1) | (b >> 6);  // 777 -> 888.
>     g = (g << 1) | (g >> 6);
>     r = (r << 1) | (r >> 6);
>@@ -567,15 +647,15 @@ void ARGB1555ToUVRow_C(const uint8* src_argb1555,
>     dst_v += 1;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_argb1555[0] & 0x1f;
>-    uint8 g0 = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>-    uint8 r0 = (src_argb1555[1] & 0x7c) >> 2;
>-    uint8 b2 = next_argb1555[0] & 0x1f;
>-    uint8 g2 = (next_argb1555[0] >> 5) | ((next_argb1555[1] & 0x03) << 3);
>-    uint8 r2 = next_argb1555[1] >> 3;
>-    uint8 b = (b0 + b2);  // 555 * 2 = 666.
>-    uint8 g = (g0 + g2);
>-    uint8 r = (r0 + r2);
>+    uint8_t b0 = src_argb1555[0] & 0x1f;
>+    uint8_t g0 = (src_argb1555[0] >> 5) | ((src_argb1555[1] & 0x03) << 3);
>+    uint8_t r0 = (src_argb1555[1] & 0x7c) >> 2;
>+    uint8_t b2 = next_argb1555[0] & 0x1f;
>+    uint8_t g2 = (next_argb1555[0] >> 5) | ((next_argb1555[1] & 0x03) << 3);
>+    uint8_t r2 = next_argb1555[1] >> 3;
>+    uint8_t b = (b0 + b2);  // 555 * 2 = 666.
>+    uint8_t g = (g0 + g2);
>+    uint8_t r = (r0 + r2);
>     b = (b << 2) | (b >> 4);  // 666 -> 888.
>     g = (g << 2) | (g >> 4);
>     r = (r << 2) | (r >> 4);
>@@ -584,29 +664,29 @@ void ARGB1555ToUVRow_C(const uint8* src_argb1555,
>   }
> }
> 
>-void ARGB4444ToUVRow_C(const uint8* src_argb4444,
>+void ARGB4444ToUVRow_C(const uint8_t* src_argb4444,
>                        int src_stride_argb4444,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  const uint8* next_argb4444 = src_argb4444 + src_stride_argb4444;
>+  const uint8_t* next_argb4444 = src_argb4444 + src_stride_argb4444;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 b0 = src_argb4444[0] & 0x0f;
>-    uint8 g0 = src_argb4444[0] >> 4;
>-    uint8 r0 = src_argb4444[1] & 0x0f;
>-    uint8 b1 = src_argb4444[2] & 0x0f;
>-    uint8 g1 = src_argb4444[2] >> 4;
>-    uint8 r1 = src_argb4444[3] & 0x0f;
>-    uint8 b2 = next_argb4444[0] & 0x0f;
>-    uint8 g2 = next_argb4444[0] >> 4;
>-    uint8 r2 = next_argb4444[1] & 0x0f;
>-    uint8 b3 = next_argb4444[2] & 0x0f;
>-    uint8 g3 = next_argb4444[2] >> 4;
>-    uint8 r3 = next_argb4444[3] & 0x0f;
>-    uint8 b = (b0 + b1 + b2 + b3);  // 444 * 4 = 666.
>-    uint8 g = (g0 + g1 + g2 + g3);
>-    uint8 r = (r0 + r1 + r2 + r3);
>+    uint8_t b0 = src_argb4444[0] & 0x0f;
>+    uint8_t g0 = src_argb4444[0] >> 4;
>+    uint8_t r0 = src_argb4444[1] & 0x0f;
>+    uint8_t b1 = src_argb4444[2] & 0x0f;
>+    uint8_t g1 = src_argb4444[2] >> 4;
>+    uint8_t r1 = src_argb4444[3] & 0x0f;
>+    uint8_t b2 = next_argb4444[0] & 0x0f;
>+    uint8_t g2 = next_argb4444[0] >> 4;
>+    uint8_t r2 = next_argb4444[1] & 0x0f;
>+    uint8_t b3 = next_argb4444[2] & 0x0f;
>+    uint8_t g3 = next_argb4444[2] >> 4;
>+    uint8_t r3 = next_argb4444[3] & 0x0f;
>+    uint8_t b = (b0 + b1 + b2 + b3);  // 444 * 4 = 666.
>+    uint8_t g = (g0 + g1 + g2 + g3);
>+    uint8_t r = (r0 + r1 + r2 + r3);
>     b = (b << 2) | (b >> 4);  // 666 -> 888.
>     g = (g << 2) | (g >> 4);
>     r = (r << 2) | (r >> 4);
>@@ -618,15 +698,15 @@ void ARGB4444ToUVRow_C(const uint8* src_argb4444,
>     dst_v += 1;
>   }
>   if (width & 1) {
>-    uint8 b0 = src_argb4444[0] & 0x0f;
>-    uint8 g0 = src_argb4444[0] >> 4;
>-    uint8 r0 = src_argb4444[1] & 0x0f;
>-    uint8 b2 = next_argb4444[0] & 0x0f;
>-    uint8 g2 = next_argb4444[0] >> 4;
>-    uint8 r2 = next_argb4444[1] & 0x0f;
>-    uint8 b = (b0 + b2);  // 444 * 2 = 555.
>-    uint8 g = (g0 + g2);
>-    uint8 r = (r0 + r2);
>+    uint8_t b0 = src_argb4444[0] & 0x0f;
>+    uint8_t g0 = src_argb4444[0] >> 4;
>+    uint8_t r0 = src_argb4444[1] & 0x0f;
>+    uint8_t b2 = next_argb4444[0] & 0x0f;
>+    uint8_t g2 = next_argb4444[0] >> 4;
>+    uint8_t r2 = next_argb4444[1] & 0x0f;
>+    uint8_t b = (b0 + b2);  // 444 * 2 = 555.
>+    uint8_t g = (g0 + g2);
>+    uint8_t r = (r0 + r2);
>     b = (b << 3) | (b >> 2);  // 555 -> 888.
>     g = (g << 3) | (g >> 2);
>     r = (r << 3) | (r >> 2);
>@@ -635,15 +715,15 @@ void ARGB4444ToUVRow_C(const uint8* src_argb4444,
>   }
> }
> 
>-void ARGBToUV444Row_C(const uint8* src_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void ARGBToUV444Row_C(const uint8_t* src_argb,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 ab = src_argb[0];
>-    uint8 ag = src_argb[1];
>-    uint8 ar = src_argb[2];
>+    uint8_t ab = src_argb[0];
>+    uint8_t ag = src_argb[1];
>+    uint8_t ar = src_argb[2];
>     dst_u[0] = RGBToU(ar, ag, ab);
>     dst_v[0] = RGBToV(ar, ag, ab);
>     src_argb += 4;
>@@ -652,10 +732,10 @@ void ARGBToUV444Row_C(const uint8* src_argb,
>   }
> }
> 
>-void ARGBGrayRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBGrayRow_C(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 y = RGBToYJ(src_argb[2], src_argb[1], src_argb[0]);
>+    uint8_t y = RGBToYJ(src_argb[2], src_argb[1], src_argb[0]);
>     dst_argb[2] = dst_argb[1] = dst_argb[0] = y;
>     dst_argb[3] = src_argb[3];
>     dst_argb += 4;
>@@ -664,7 +744,7 @@ void ARGBGrayRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
> }
> 
> // Convert a row of image to Sepia tone.
>-void ARGBSepiaRow_C(uint8* dst_argb, int width) {
>+void ARGBSepiaRow_C(uint8_t* dst_argb, int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>     int b = dst_argb[0];
>@@ -683,9 +763,9 @@ void ARGBSepiaRow_C(uint8* dst_argb, int width) {
> 
> // Apply color matrix to a row of image. Matrix is signed.
> // TODO(fbarchard): Consider adding rounding (+32).
>-void ARGBColorMatrixRow_C(const uint8* src_argb,
>-                          uint8* dst_argb,
>-                          const int8* matrix_argb,
>+void ARGBColorMatrixRow_C(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          const int8_t* matrix_argb,
>                           int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>@@ -715,7 +795,9 @@ void ARGBColorMatrixRow_C(const uint8* src_argb,
> }
> 
> // Apply color table to a row of image.
>-void ARGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width) {
>+void ARGBColorTableRow_C(uint8_t* dst_argb,
>+                         const uint8_t* table_argb,
>+                         int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>     int b = dst_argb[0];
>@@ -731,7 +813,9 @@ void ARGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width) {
> }
> 
> // Apply color table to a row of image.
>-void RGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width) {
>+void RGBColorTableRow_C(uint8_t* dst_argb,
>+                        const uint8_t* table_argb,
>+                        int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>     int b = dst_argb[0];
>@@ -744,7 +828,7 @@ void RGBColorTableRow_C(uint8* dst_argb, const uint8* table_argb, int width) {
>   }
> }
> 
>-void ARGBQuantizeRow_C(uint8* dst_argb,
>+void ARGBQuantizeRow_C(uint8_t* dst_argb,
>                        int scale,
>                        int interval_size,
>                        int interval_offset,
>@@ -764,21 +848,21 @@ void ARGBQuantizeRow_C(uint8* dst_argb,
> #define REPEAT8(v) (v) | ((v) << 8)
> #define SHADE(f, v) v* f >> 24
> 
>-void ARGBShadeRow_C(const uint8* src_argb,
>-                    uint8* dst_argb,
>+void ARGBShadeRow_C(const uint8_t* src_argb,
>+                    uint8_t* dst_argb,
>                     int width,
>-                    uint32 value) {
>-  const uint32 b_scale = REPEAT8(value & 0xff);
>-  const uint32 g_scale = REPEAT8((value >> 8) & 0xff);
>-  const uint32 r_scale = REPEAT8((value >> 16) & 0xff);
>-  const uint32 a_scale = REPEAT8(value >> 24);
>+                    uint32_t value) {
>+  const uint32_t b_scale = REPEAT8(value & 0xff);
>+  const uint32_t g_scale = REPEAT8((value >> 8) & 0xff);
>+  const uint32_t r_scale = REPEAT8((value >> 16) & 0xff);
>+  const uint32_t a_scale = REPEAT8(value >> 24);
> 
>   int i;
>   for (i = 0; i < width; ++i) {
>-    const uint32 b = REPEAT8(src_argb[0]);
>-    const uint32 g = REPEAT8(src_argb[1]);
>-    const uint32 r = REPEAT8(src_argb[2]);
>-    const uint32 a = REPEAT8(src_argb[3]);
>+    const uint32_t b = REPEAT8(src_argb[0]);
>+    const uint32_t g = REPEAT8(src_argb[1]);
>+    const uint32_t r = REPEAT8(src_argb[2]);
>+    const uint32_t a = REPEAT8(src_argb[3]);
>     dst_argb[0] = SHADE(b, b_scale);
>     dst_argb[1] = SHADE(g, g_scale);
>     dst_argb[2] = SHADE(r, r_scale);
>@@ -793,20 +877,20 @@ void ARGBShadeRow_C(const uint8* src_argb,
> #define REPEAT8(v) (v) | ((v) << 8)
> #define SHADE(f, v) v* f >> 16
> 
>-void ARGBMultiplyRow_C(const uint8* src_argb0,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBMultiplyRow_C(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>-    const uint32 b = REPEAT8(src_argb0[0]);
>-    const uint32 g = REPEAT8(src_argb0[1]);
>-    const uint32 r = REPEAT8(src_argb0[2]);
>-    const uint32 a = REPEAT8(src_argb0[3]);
>-    const uint32 b_scale = src_argb1[0];
>-    const uint32 g_scale = src_argb1[1];
>-    const uint32 r_scale = src_argb1[2];
>-    const uint32 a_scale = src_argb1[3];
>+    const uint32_t b = REPEAT8(src_argb0[0]);
>+    const uint32_t g = REPEAT8(src_argb0[1]);
>+    const uint32_t r = REPEAT8(src_argb0[2]);
>+    const uint32_t a = REPEAT8(src_argb0[3]);
>+    const uint32_t b_scale = src_argb1[0];
>+    const uint32_t g_scale = src_argb1[1];
>+    const uint32_t r_scale = src_argb1[2];
>+    const uint32_t a_scale = src_argb1[3];
>     dst_argb[0] = SHADE(b, b_scale);
>     dst_argb[1] = SHADE(g, g_scale);
>     dst_argb[2] = SHADE(r, r_scale);
>@@ -821,9 +905,9 @@ void ARGBMultiplyRow_C(const uint8* src_argb0,
> 
> #define SHADE(f, v) clamp255(v + f)
> 
>-void ARGBAddRow_C(const uint8* src_argb0,
>-                  const uint8* src_argb1,
>-                  uint8* dst_argb,
>+void ARGBAddRow_C(const uint8_t* src_argb0,
>+                  const uint8_t* src_argb1,
>+                  uint8_t* dst_argb,
>                   int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>@@ -848,9 +932,9 @@ void ARGBAddRow_C(const uint8* src_argb0,
> 
> #define SHADE(f, v) clamp0(f - v)
> 
>-void ARGBSubtractRow_C(const uint8* src_argb0,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBSubtractRow_C(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>@@ -874,10 +958,10 @@ void ARGBSubtractRow_C(const uint8* src_argb0,
> #undef SHADE
> 
> // Sobel functions which mimics SSSE3.
>-void SobelXRow_C(const uint8* src_y0,
>-                 const uint8* src_y1,
>-                 const uint8* src_y2,
>-                 uint8* dst_sobelx,
>+void SobelXRow_C(const uint8_t* src_y0,
>+                 const uint8_t* src_y1,
>+                 const uint8_t* src_y2,
>+                 uint8_t* dst_sobelx,
>                  int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>@@ -891,13 +975,13 @@ void SobelXRow_C(const uint8* src_y0,
>     int b_diff = b - b_sub;
>     int c_diff = c - c_sub;
>     int sobel = Abs(a_diff + b_diff * 2 + c_diff);
>-    dst_sobelx[i] = (uint8)(clamp255(sobel));
>+    dst_sobelx[i] = (uint8_t)(clamp255(sobel));
>   }
> }
> 
>-void SobelYRow_C(const uint8* src_y0,
>-                 const uint8* src_y1,
>-                 uint8* dst_sobely,
>+void SobelYRow_C(const uint8_t* src_y0,
>+                 const uint8_t* src_y1,
>+                 uint8_t* dst_sobely,
>                  int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>@@ -911,62 +995,62 @@ void SobelYRow_C(const uint8* src_y0,
>     int b_diff = b - b_sub;
>     int c_diff = c - c_sub;
>     int sobel = Abs(a_diff + b_diff * 2 + c_diff);
>-    dst_sobely[i] = (uint8)(clamp255(sobel));
>+    dst_sobely[i] = (uint8_t)(clamp255(sobel));
>   }
> }
> 
>-void SobelRow_C(const uint8* src_sobelx,
>-                const uint8* src_sobely,
>-                uint8* dst_argb,
>+void SobelRow_C(const uint8_t* src_sobelx,
>+                const uint8_t* src_sobely,
>+                uint8_t* dst_argb,
>                 int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>     int r = src_sobelx[i];
>     int b = src_sobely[i];
>     int s = clamp255(r + b);
>-    dst_argb[0] = (uint8)(s);
>-    dst_argb[1] = (uint8)(s);
>-    dst_argb[2] = (uint8)(s);
>-    dst_argb[3] = (uint8)(255u);
>+    dst_argb[0] = (uint8_t)(s);
>+    dst_argb[1] = (uint8_t)(s);
>+    dst_argb[2] = (uint8_t)(s);
>+    dst_argb[3] = (uint8_t)(255u);
>     dst_argb += 4;
>   }
> }
> 
>-void SobelToPlaneRow_C(const uint8* src_sobelx,
>-                       const uint8* src_sobely,
>-                       uint8* dst_y,
>+void SobelToPlaneRow_C(const uint8_t* src_sobelx,
>+                       const uint8_t* src_sobely,
>+                       uint8_t* dst_y,
>                        int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>     int r = src_sobelx[i];
>     int b = src_sobely[i];
>     int s = clamp255(r + b);
>-    dst_y[i] = (uint8)(s);
>+    dst_y[i] = (uint8_t)(s);
>   }
> }
> 
>-void SobelXYRow_C(const uint8* src_sobelx,
>-                  const uint8* src_sobely,
>-                  uint8* dst_argb,
>+void SobelXYRow_C(const uint8_t* src_sobelx,
>+                  const uint8_t* src_sobely,
>+                  uint8_t* dst_argb,
>                   int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>     int r = src_sobelx[i];
>     int b = src_sobely[i];
>     int g = clamp255(r + b);
>-    dst_argb[0] = (uint8)(b);
>-    dst_argb[1] = (uint8)(g);
>-    dst_argb[2] = (uint8)(r);
>-    dst_argb[3] = (uint8)(255u);
>+    dst_argb[0] = (uint8_t)(b);
>+    dst_argb[1] = (uint8_t)(g);
>+    dst_argb[2] = (uint8_t)(r);
>+    dst_argb[3] = (uint8_t)(255u);
>     dst_argb += 4;
>   }
> }
> 
>-void J400ToARGBRow_C(const uint8* src_y, uint8* dst_argb, int width) {
>+void J400ToARGBRow_C(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   // Copy a Y to RGB.
>   int x;
>   for (x = 0; x < width; ++x) {
>-    uint8 y = src_y[0];
>+    uint8_t y = src_y[0];
>     dst_argb[2] = dst_argb[1] = dst_argb[0] = y;
>     dst_argb[3] = 255u;
>     dst_argb += 4;
>@@ -1223,12 +1307,14 @@ const struct YuvConstants SIMD_ALIGNED(kYvuH709Constants) = {
> #undef YG
> 
> // C reference code that mimics the YUV assembly.
>-static __inline void YuvPixel(uint8 y,
>-                              uint8 u,
>-                              uint8 v,
>-                              uint8* b,
>-                              uint8* g,
>-                              uint8* r,
>+// Reads 8 bit YUV and leaves result as 16 bit.
>+
>+static __inline void YuvPixel(uint8_t y,
>+                              uint8_t u,
>+                              uint8_t v,
>+                              uint8_t* b,
>+                              uint8_t* g,
>+                              uint8_t* r,
>                               const struct YuvConstants* yuvconstants) {
> #if defined(__aarch64__)
>   int ub = -yuvconstants->kUVToRB[0];
>@@ -1259,10 +1345,117 @@ static __inline void YuvPixel(uint8 y,
>   int yg = yuvconstants->kYToRgb[0];
> #endif
> 
>-  uint32 y1 = (uint32)(y * 0x0101 * yg) >> 16;
>-  *b = Clamp((int32)(-(u * ub) + y1 + bb) >> 6);
>-  *g = Clamp((int32)(-(u * ug + v * vg) + y1 + bg) >> 6);
>-  *r = Clamp((int32)(-(v * vr) + y1 + br) >> 6);
>+  uint32_t y1 = (uint32_t)(y * 0x0101 * yg) >> 16;
>+  *b = Clamp((int32_t)(-(u * ub) + y1 + bb) >> 6);
>+  *g = Clamp((int32_t)(-(u * ug + v * vg) + y1 + bg) >> 6);
>+  *r = Clamp((int32_t)(-(v * vr) + y1 + br) >> 6);
>+}
>+
>+// Reads 8 bit YUV and leaves result as 16 bit.
>+static __inline void YuvPixel8_16(uint8_t y,
>+                                  uint8_t u,
>+                                  uint8_t v,
>+                                  int* b,
>+                                  int* g,
>+                                  int* r,
>+                                  const struct YuvConstants* yuvconstants) {
>+#if defined(__aarch64__)
>+  int ub = -yuvconstants->kUVToRB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[1];
>+  int vr = -yuvconstants->kUVToRB[1];
>+  int bb = yuvconstants->kUVBiasBGR[0];
>+  int bg = yuvconstants->kUVBiasBGR[1];
>+  int br = yuvconstants->kUVBiasBGR[2];
>+  int yg = yuvconstants->kYToRgb[0] / 0x0101;
>+#elif defined(__arm__)
>+  int ub = -yuvconstants->kUVToRB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[4];
>+  int vr = -yuvconstants->kUVToRB[4];
>+  int bb = yuvconstants->kUVBiasBGR[0];
>+  int bg = yuvconstants->kUVBiasBGR[1];
>+  int br = yuvconstants->kUVBiasBGR[2];
>+  int yg = yuvconstants->kYToRgb[0] / 0x0101;
>+#else
>+  int ub = yuvconstants->kUVToB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[1];
>+  int vr = yuvconstants->kUVToR[1];
>+  int bb = yuvconstants->kUVBiasB[0];
>+  int bg = yuvconstants->kUVBiasG[0];
>+  int br = yuvconstants->kUVBiasR[0];
>+  int yg = yuvconstants->kYToRgb[0];
>+#endif
>+
>+  uint32_t y1 = (uint32_t)(y * 0x0101 * yg) >> 16;
>+  *b = (int)(-(u * ub) + y1 + bb);
>+  *g = (int)(-(u * ug + v * vg) + y1 + bg);
>+  *r = (int)(-(v * vr) + y1 + br);
>+}
>+
>+// C reference code that mimics the YUV 16 bit assembly.
>+// Reads 10 bit YUV and leaves result as 16 bit.
>+static __inline void YuvPixel16(int16_t y,
>+                                int16_t u,
>+                                int16_t v,
>+                                int* b,
>+                                int* g,
>+                                int* r,
>+                                const struct YuvConstants* yuvconstants) {
>+#if defined(__aarch64__)
>+  int ub = -yuvconstants->kUVToRB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[1];
>+  int vr = -yuvconstants->kUVToRB[1];
>+  int bb = yuvconstants->kUVBiasBGR[0];
>+  int bg = yuvconstants->kUVBiasBGR[1];
>+  int br = yuvconstants->kUVBiasBGR[2];
>+  int yg = yuvconstants->kYToRgb[0] / 0x0101;
>+#elif defined(__arm__)
>+  int ub = -yuvconstants->kUVToRB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[4];
>+  int vr = -yuvconstants->kUVToRB[4];
>+  int bb = yuvconstants->kUVBiasBGR[0];
>+  int bg = yuvconstants->kUVBiasBGR[1];
>+  int br = yuvconstants->kUVBiasBGR[2];
>+  int yg = yuvconstants->kYToRgb[0] / 0x0101;
>+#else
>+  int ub = yuvconstants->kUVToB[0];
>+  int ug = yuvconstants->kUVToG[0];
>+  int vg = yuvconstants->kUVToG[1];
>+  int vr = yuvconstants->kUVToR[1];
>+  int bb = yuvconstants->kUVBiasB[0];
>+  int bg = yuvconstants->kUVBiasG[0];
>+  int br = yuvconstants->kUVBiasR[0];
>+  int yg = yuvconstants->kYToRgb[0];
>+#endif
>+
>+  uint32_t y1 = (uint32_t)((y << 6) * yg) >> 16;
>+  u = clamp255(u >> 2);
>+  v = clamp255(v >> 2);
>+  *b = (int)(-(u * ub) + y1 + bb);
>+  *g = (int)(-(u * ug + v * vg) + y1 + bg);
>+  *r = (int)(-(v * vr) + y1 + br);
>+}
>+
>+// C reference code that mimics the YUV 10 bit assembly.
>+// Reads 10 bit YUV and clamps down to 8 bit RGB.
>+static __inline void YuvPixel10(uint16_t y,
>+                                uint16_t u,
>+                                uint16_t v,
>+                                uint8_t* b,
>+                                uint8_t* g,
>+                                uint8_t* r,
>+                                const struct YuvConstants* yuvconstants) {
>+  int b16;
>+  int g16;
>+  int r16;
>+  YuvPixel16(y, u, v, &b16, &g16, &r16, yuvconstants);
>+  *b = Clamp(b16 >> 6);
>+  *g = Clamp(g16 >> 6);
>+  *r = Clamp(r16 >> 6);
> }
> 
> // Y contribution to R,G,B.  Scale and bias.
>@@ -1270,11 +1463,11 @@ static __inline void YuvPixel(uint8 y,
> #define YGB -1160 /* 1.164 * 64 * -16 + 64 / 2 */
> 
> // C reference code that mimics the YUV assembly.
>-static __inline void YPixel(uint8 y, uint8* b, uint8* g, uint8* r) {
>-  uint32 y1 = (uint32)(y * 0x0101 * YG) >> 16;
>-  *b = Clamp((int32)(y1 + YGB) >> 6);
>-  *g = Clamp((int32)(y1 + YGB) >> 6);
>-  *r = Clamp((int32)(y1 + YGB) >> 6);
>+static __inline void YPixel(uint8_t y, uint8_t* b, uint8_t* g, uint8_t* r) {
>+  uint32_t y1 = (uint32_t)(y * 0x0101 * YG) >> 16;
>+  *b = Clamp((int32_t)(y1 + YGB) >> 6);
>+  *g = Clamp((int32_t)(y1 + YGB) >> 6);
>+  *r = Clamp((int32_t)(y1 + YGB) >> 6);
> }
> 
> #undef YG
>@@ -1284,16 +1477,16 @@ static __inline void YPixel(uint8 y, uint8* b, uint8* g, uint8* r) {
>     (defined(__ARM_NEON__) || defined(__aarch64__) || defined(LIBYUV_NEON))
> // C mimic assembly.
> // TODO(fbarchard): Remove subsampling from Neon.
>-void I444ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* rgb_buf,
>+void I444ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint8 u = (src_u[0] + src_u[1] + 1) >> 1;
>-    uint8 v = (src_v[0] + src_v[1] + 1) >> 1;
>+    uint8_t u = (src_u[0] + src_u[1] + 1) >> 1;
>+    uint8_t v = (src_v[0] + src_v[1] + 1) >> 1;
>     YuvPixel(src_y[0], u, v, rgb_buf + 0, rgb_buf + 1, rgb_buf + 2,
>              yuvconstants);
>     rgb_buf[3] = 255;
>@@ -1312,10 +1505,10 @@ void I444ToARGBRow_C(const uint8* src_y,
>   }
> }
> #else
>-void I444ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* rgb_buf,
>+void I444ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1332,10 +1525,10 @@ void I444ToARGBRow_C(const uint8* src_y,
> #endif
> 
> // Also used for 420
>-void I422ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* rgb_buf,
>+void I422ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1358,11 +1551,105 @@ void I422ToARGBRow_C(const uint8* src_y,
>   }
> }
> 
>-void I422AlphaToARGBRow_C(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          const uint8* src_a,
>-                          uint8* rgb_buf,
>+// 10 bit YUV to ARGB
>+void I210ToARGBRow_C(const uint16_t* src_y,
>+                     const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint8_t* rgb_buf,
>+                     const struct YuvConstants* yuvconstants,
>+                     int width) {
>+  int x;
>+  for (x = 0; x < width - 1; x += 2) {
>+    YuvPixel10(src_y[0], src_u[0], src_v[0], rgb_buf + 0, rgb_buf + 1,
>+               rgb_buf + 2, yuvconstants);
>+    rgb_buf[3] = 255;
>+    YuvPixel10(src_y[1], src_u[0], src_v[0], rgb_buf + 4, rgb_buf + 5,
>+               rgb_buf + 6, yuvconstants);
>+    rgb_buf[7] = 255;
>+    src_y += 2;
>+    src_u += 1;
>+    src_v += 1;
>+    rgb_buf += 8;  // Advance 2 pixels.
>+  }
>+  if (width & 1) {
>+    YuvPixel10(src_y[0], src_u[0], src_v[0], rgb_buf + 0, rgb_buf + 1,
>+               rgb_buf + 2, yuvconstants);
>+    rgb_buf[3] = 255;
>+  }
>+}
>+
>+static void StoreAR30(uint8_t* rgb_buf, int b, int g, int r) {
>+  uint32_t ar30;
>+  b = b >> 4;  // convert 10.6 to 10 bit.
>+  g = g >> 4;
>+  r = r >> 4;
>+  b = Clamp10(b);
>+  g = Clamp10(g);
>+  r = Clamp10(r);
>+  ar30 = b | ((uint32_t)g << 10) | ((uint32_t)r << 20) | 0xc0000000;
>+  (*(uint32_t*)rgb_buf) = ar30;
>+}
>+
>+// 10 bit YUV to 10 bit AR30
>+void I210ToAR30Row_C(const uint16_t* src_y,
>+                     const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint8_t* rgb_buf,
>+                     const struct YuvConstants* yuvconstants,
>+                     int width) {
>+  int x;
>+  int b;
>+  int g;
>+  int r;
>+  for (x = 0; x < width - 1; x += 2) {
>+    YuvPixel16(src_y[0], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf, b, g, r);
>+    YuvPixel16(src_y[1], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf + 4, b, g, r);
>+    src_y += 2;
>+    src_u += 1;
>+    src_v += 1;
>+    rgb_buf += 8;  // Advance 2 pixels.
>+  }
>+  if (width & 1) {
>+    YuvPixel16(src_y[0], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf, b, g, r);
>+  }
>+}
>+
>+// 8 bit YUV to 10 bit AR30
>+// Uses same code as 10 bit YUV bit shifts the 8 bit values up to 10 bits.
>+void I422ToAR30Row_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>+                     const struct YuvConstants* yuvconstants,
>+                     int width) {
>+  int x;
>+  int b;
>+  int g;
>+  int r;
>+  for (x = 0; x < width - 1; x += 2) {
>+    YuvPixel8_16(src_y[0], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf, b, g, r);
>+    YuvPixel8_16(src_y[1], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf + 4, b, g, r);
>+    src_y += 2;
>+    src_u += 1;
>+    src_v += 1;
>+    rgb_buf += 8;  // Advance 2 pixels.
>+  }
>+  if (width & 1) {
>+    YuvPixel8_16(src_y[0], src_u[0], src_v[0], &b, &g, &r, yuvconstants);
>+    StoreAR30(rgb_buf, b, g, r);
>+  }
>+}
>+
>+void I422AlphaToARGBRow_C(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          const uint8_t* src_a,
>+                          uint8_t* rgb_buf,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   int x;
>@@ -1386,10 +1673,10 @@ void I422AlphaToARGBRow_C(const uint8* src_y,
>   }
> }
> 
>-void I422ToRGB24Row_C(const uint8* src_y,
>-                      const uint8* src_u,
>-                      const uint8* src_v,
>-                      uint8* rgb_buf,
>+void I422ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_u,
>+                      const uint8_t* src_v,
>+                      uint8_t* rgb_buf,
>                       const struct YuvConstants* yuvconstants,
>                       int width) {
>   int x;
>@@ -1409,18 +1696,18 @@ void I422ToRGB24Row_C(const uint8* src_y,
>   }
> }
> 
>-void I422ToARGB4444Row_C(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb4444,
>+void I422ToARGB4444Row_C(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_argb4444,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>-  uint8 b0;
>-  uint8 g0;
>-  uint8 r0;
>-  uint8 b1;
>-  uint8 g1;
>-  uint8 r1;
>+  uint8_t b0;
>+  uint8_t g0;
>+  uint8_t r0;
>+  uint8_t b1;
>+  uint8_t g1;
>+  uint8_t r1;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     YuvPixel(src_y[0], src_u[0], src_v[0], &b0, &g0, &r0, yuvconstants);
>@@ -1431,8 +1718,8 @@ void I422ToARGB4444Row_C(const uint8* src_y,
>     b1 = b1 >> 4;
>     g1 = g1 >> 4;
>     r1 = r1 >> 4;
>-    *(uint32*)(dst_argb4444) = b0 | (g0 << 4) | (r0 << 8) | (b1 << 16) |
>-                               (g1 << 20) | (r1 << 24) | 0xf000f000;
>+    *(uint32_t*)(dst_argb4444) = b0 | (g0 << 4) | (r0 << 8) | (b1 << 16) |
>+                                 (g1 << 20) | (r1 << 24) | 0xf000f000;
>     src_y += 2;
>     src_u += 1;
>     src_v += 1;
>@@ -1443,22 +1730,22 @@ void I422ToARGB4444Row_C(const uint8* src_y,
>     b0 = b0 >> 4;
>     g0 = g0 >> 4;
>     r0 = r0 >> 4;
>-    *(uint16*)(dst_argb4444) = b0 | (g0 << 4) | (r0 << 8) | 0xf000;
>+    *(uint16_t*)(dst_argb4444) = b0 | (g0 << 4) | (r0 << 8) | 0xf000;
>   }
> }
> 
>-void I422ToARGB1555Row_C(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_argb1555,
>+void I422ToARGB1555Row_C(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_argb1555,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>-  uint8 b0;
>-  uint8 g0;
>-  uint8 r0;
>-  uint8 b1;
>-  uint8 g1;
>-  uint8 r1;
>+  uint8_t b0;
>+  uint8_t g0;
>+  uint8_t r0;
>+  uint8_t b1;
>+  uint8_t g1;
>+  uint8_t r1;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     YuvPixel(src_y[0], src_u[0], src_v[0], &b0, &g0, &r0, yuvconstants);
>@@ -1469,8 +1756,8 @@ void I422ToARGB1555Row_C(const uint8* src_y,
>     b1 = b1 >> 3;
>     g1 = g1 >> 3;
>     r1 = r1 >> 3;
>-    *(uint32*)(dst_argb1555) = b0 | (g0 << 5) | (r0 << 10) | (b1 << 16) |
>-                               (g1 << 21) | (r1 << 26) | 0x80008000;
>+    *(uint32_t*)(dst_argb1555) = b0 | (g0 << 5) | (r0 << 10) | (b1 << 16) |
>+                                 (g1 << 21) | (r1 << 26) | 0x80008000;
>     src_y += 2;
>     src_u += 1;
>     src_v += 1;
>@@ -1481,22 +1768,22 @@ void I422ToARGB1555Row_C(const uint8* src_y,
>     b0 = b0 >> 3;
>     g0 = g0 >> 3;
>     r0 = r0 >> 3;
>-    *(uint16*)(dst_argb1555) = b0 | (g0 << 5) | (r0 << 10) | 0x8000;
>+    *(uint16_t*)(dst_argb1555) = b0 | (g0 << 5) | (r0 << 10) | 0x8000;
>   }
> }
> 
>-void I422ToRGB565Row_C(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_rgb565,
>+void I422ToRGB565Row_C(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_rgb565,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>-  uint8 b0;
>-  uint8 g0;
>-  uint8 r0;
>-  uint8 b1;
>-  uint8 g1;
>-  uint8 r1;
>+  uint8_t b0;
>+  uint8_t g0;
>+  uint8_t r0;
>+  uint8_t b1;
>+  uint8_t g1;
>+  uint8_t r1;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     YuvPixel(src_y[0], src_u[0], src_v[0], &b0, &g0, &r0, yuvconstants);
>@@ -1507,7 +1794,7 @@ void I422ToRGB565Row_C(const uint8* src_y,
>     b1 = b1 >> 3;
>     g1 = g1 >> 2;
>     r1 = r1 >> 3;
>-    *(uint32*)(dst_rgb565) =
>+    *(uint32_t*)(dst_rgb565) =
>         b0 | (g0 << 5) | (r0 << 11) | (b1 << 16) | (g1 << 21) | (r1 << 27);
>     src_y += 2;
>     src_u += 1;
>@@ -1519,13 +1806,13 @@ void I422ToRGB565Row_C(const uint8* src_y,
>     b0 = b0 >> 3;
>     g0 = g0 >> 2;
>     r0 = r0 >> 3;
>-    *(uint16*)(dst_rgb565) = b0 | (g0 << 5) | (r0 << 11);
>+    *(uint16_t*)(dst_rgb565) = b0 | (g0 << 5) | (r0 << 11);
>   }
> }
> 
>-void NV12ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_uv,
>-                     uint8* rgb_buf,
>+void NV12ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_uv,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1547,9 +1834,9 @@ void NV12ToARGBRow_C(const uint8* src_y,
>   }
> }
> 
>-void NV21ToARGBRow_C(const uint8* src_y,
>-                     const uint8* src_vu,
>-                     uint8* rgb_buf,
>+void NV21ToARGBRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_vu,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1571,17 +1858,59 @@ void NV21ToARGBRow_C(const uint8* src_y,
>   }
> }
> 
>-void NV12ToRGB565Row_C(const uint8* src_y,
>-                       const uint8* src_uv,
>-                       uint8* dst_rgb565,
>+void NV12ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_uv,
>+                      uint8_t* rgb_buf,
>+                      const struct YuvConstants* yuvconstants,
>+                      int width) {
>+  int x;
>+  for (x = 0; x < width - 1; x += 2) {
>+    YuvPixel(src_y[0], src_uv[0], src_uv[1], rgb_buf + 0, rgb_buf + 1,
>+             rgb_buf + 2, yuvconstants);
>+    YuvPixel(src_y[1], src_uv[0], src_uv[1], rgb_buf + 3, rgb_buf + 4,
>+             rgb_buf + 5, yuvconstants);
>+    src_y += 2;
>+    src_uv += 2;
>+    rgb_buf += 6;  // Advance 2 pixels.
>+  }
>+  if (width & 1) {
>+    YuvPixel(src_y[0], src_uv[0], src_uv[1], rgb_buf + 0, rgb_buf + 1,
>+             rgb_buf + 2, yuvconstants);
>+  }
>+}
>+
>+void NV21ToRGB24Row_C(const uint8_t* src_y,
>+                      const uint8_t* src_vu,
>+                      uint8_t* rgb_buf,
>+                      const struct YuvConstants* yuvconstants,
>+                      int width) {
>+  int x;
>+  for (x = 0; x < width - 1; x += 2) {
>+    YuvPixel(src_y[0], src_vu[1], src_vu[0], rgb_buf + 0, rgb_buf + 1,
>+             rgb_buf + 2, yuvconstants);
>+    YuvPixel(src_y[1], src_vu[1], src_vu[0], rgb_buf + 3, rgb_buf + 4,
>+             rgb_buf + 5, yuvconstants);
>+    src_y += 2;
>+    src_vu += 2;
>+    rgb_buf += 6;  // Advance 2 pixels.
>+  }
>+  if (width & 1) {
>+    YuvPixel(src_y[0], src_vu[1], src_vu[0], rgb_buf + 0, rgb_buf + 1,
>+             rgb_buf + 2, yuvconstants);
>+  }
>+}
>+
>+void NV12ToRGB565Row_C(const uint8_t* src_y,
>+                       const uint8_t* src_uv,
>+                       uint8_t* dst_rgb565,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>-  uint8 b0;
>-  uint8 g0;
>-  uint8 r0;
>-  uint8 b1;
>-  uint8 g1;
>-  uint8 r1;
>+  uint8_t b0;
>+  uint8_t g0;
>+  uint8_t r0;
>+  uint8_t b1;
>+  uint8_t g1;
>+  uint8_t r1;
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     YuvPixel(src_y[0], src_uv[0], src_uv[1], &b0, &g0, &r0, yuvconstants);
>@@ -1592,7 +1921,7 @@ void NV12ToRGB565Row_C(const uint8* src_y,
>     b1 = b1 >> 3;
>     g1 = g1 >> 2;
>     r1 = r1 >> 3;
>-    *(uint32*)(dst_rgb565) =
>+    *(uint32_t*)(dst_rgb565) =
>         b0 | (g0 << 5) | (r0 << 11) | (b1 << 16) | (g1 << 21) | (r1 << 27);
>     src_y += 2;
>     src_uv += 2;
>@@ -1603,12 +1932,12 @@ void NV12ToRGB565Row_C(const uint8* src_y,
>     b0 = b0 >> 3;
>     g0 = g0 >> 2;
>     r0 = r0 >> 3;
>-    *(uint16*)(dst_rgb565) = b0 | (g0 << 5) | (r0 << 11);
>+    *(uint16_t*)(dst_rgb565) = b0 | (g0 << 5) | (r0 << 11);
>   }
> }
> 
>-void YUY2ToARGBRow_C(const uint8* src_yuy2,
>-                     uint8* rgb_buf,
>+void YUY2ToARGBRow_C(const uint8_t* src_yuy2,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1629,8 +1958,8 @@ void YUY2ToARGBRow_C(const uint8* src_yuy2,
>   }
> }
> 
>-void UYVYToARGBRow_C(const uint8* src_uyvy,
>-                     uint8* rgb_buf,
>+void UYVYToARGBRow_C(const uint8_t* src_uyvy,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1651,10 +1980,10 @@ void UYVYToARGBRow_C(const uint8* src_uyvy,
>   }
> }
> 
>-void I422ToRGBARow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* rgb_buf,
>+void I422ToRGBARow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* rgb_buf,
>                      const struct YuvConstants* yuvconstants,
>                      int width) {
>   int x;
>@@ -1677,7 +2006,7 @@ void I422ToRGBARow_C(const uint8* src_y,
>   }
> }
> 
>-void I400ToARGBRow_C(const uint8* src_y, uint8* rgb_buf, int width) {
>+void I400ToARGBRow_C(const uint8_t* src_y, uint8_t* rgb_buf, int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     YPixel(src_y[0], rgb_buf + 0, rgb_buf + 1, rgb_buf + 2);
>@@ -1693,7 +2022,7 @@ void I400ToARGBRow_C(const uint8* src_y, uint8* rgb_buf, int width) {
>   }
> }
> 
>-void MirrorRow_C(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_C(const uint8_t* src, uint8_t* dst, int width) {
>   int x;
>   src += width - 1;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -1706,7 +2035,10 @@ void MirrorRow_C(const uint8* src, uint8* dst, int width) {
>   }
> }
> 
>-void MirrorUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width) {
>+void MirrorUVRow_C(const uint8_t* src_uv,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>+                   int width) {
>   int x;
>   src_uv += (width - 1) << 1;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -1722,10 +2054,10 @@ void MirrorUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width) {
>   }
> }
> 
>-void ARGBMirrorRow_C(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_C(const uint8_t* src, uint8_t* dst, int width) {
>   int x;
>-  const uint32* src32 = (const uint32*)(src);
>-  uint32* dst32 = (uint32*)(dst);
>+  const uint32_t* src32 = (const uint32_t*)(src);
>+  uint32_t* dst32 = (uint32_t*)(dst);
>   src32 += width - 1;
>   for (x = 0; x < width - 1; x += 2) {
>     dst32[x] = src32[0];
>@@ -1737,7 +2069,10 @@ void ARGBMirrorRow_C(const uint8* src, uint8* dst, int width) {
>   }
> }
> 
>-void SplitUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width) {
>+void SplitUVRow_C(const uint8_t* src_uv,
>+                  uint8_t* dst_u,
>+                  uint8_t* dst_v,
>+                  int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>     dst_u[x] = src_uv[0];
>@@ -1752,9 +2087,9 @@ void SplitUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width) {
>   }
> }
> 
>-void MergeUVRow_C(const uint8* src_u,
>-                  const uint8* src_v,
>-                  uint8* dst_uv,
>+void MergeUVRow_C(const uint8_t* src_u,
>+                  const uint8_t* src_v,
>+                  uint8_t* dst_uv,
>                   int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -1770,10 +2105,10 @@ void MergeUVRow_C(const uint8* src_u,
>   }
> }
> 
>-void SplitRGBRow_C(const uint8* src_rgb,
>-                   uint8* dst_r,
>-                   uint8* dst_g,
>-                   uint8* dst_b,
>+void SplitRGBRow_C(const uint8_t* src_rgb,
>+                   uint8_t* dst_r,
>+                   uint8_t* dst_g,
>+                   uint8_t* dst_b,
>                    int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>@@ -1784,10 +2119,10 @@ void SplitRGBRow_C(const uint8* src_rgb,
>   }
> }
> 
>-void MergeRGBRow_C(const uint8* src_r,
>-                   const uint8* src_g,
>-                   const uint8* src_b,
>-                   uint8* dst_rgb,
>+void MergeRGBRow_C(const uint8_t* src_r,
>+                   const uint8_t* src_g,
>+                   const uint8_t* src_b,
>+                   uint8_t* dst_rgb,
>                    int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>@@ -1798,9 +2133,14 @@ void MergeRGBRow_C(const uint8* src_r,
>   }
> }
> 
>-void MergeUVRow_16_C(const uint16* src_u,
>-                     const uint16* src_v,
>-                     uint16* dst_uv,
>+// Use scale to convert lsb formats to msb, depending how many bits there are:
>+// 128 = 9 bits
>+// 64 = 10 bits
>+// 16 = 12 bits
>+// 1 = 16 bits
>+void MergeUVRow_16_C(const uint16_t* src_u,
>+                     const uint16_t* src_v,
>+                     uint16_t* dst_uv,
>                      int scale,
>                      int width) {
>   int x;
>@@ -1817,8 +2157,8 @@ void MergeUVRow_16_C(const uint16* src_u,
>   }
> }
> 
>-void MultiplyRow_16_C(const uint16* src_y,
>-                      uint16* dst_y,
>+void MultiplyRow_16_C(const uint16_t* src_y,
>+                      uint16_t* dst_y,
>                       int scale,
>                       int width) {
>   int x;
>@@ -1827,20 +2167,48 @@ void MultiplyRow_16_C(const uint16* src_y,
>   }
> }
> 
>-void CopyRow_C(const uint8* src, uint8* dst, int count) {
>+// Use scale to convert lsb formats to msb, depending how many bits there are:
>+// 32768 = 9 bits
>+// 16384 = 10 bits
>+// 4096 = 12 bits
>+// 256 = 16 bits
>+void Convert16To8Row_C(const uint16_t* src_y,
>+                       uint8_t* dst_y,
>+                       int scale,
>+                       int width) {
>+  int x;
>+  for (x = 0; x < width; ++x) {
>+    dst_y[x] = clamp255((src_y[x] * scale) >> 16);
>+  }
>+}
>+
>+// Use scale to convert lsb formats to msb, depending how many bits there are:
>+// 1024 = 10 bits
>+void Convert8To16Row_C(const uint8_t* src_y,
>+                       uint16_t* dst_y,
>+                       int scale,
>+                       int width) {
>+  int x;
>+  scale *= 0x0101;  // replicates the byte.
>+  for (x = 0; x < width; ++x) {
>+    dst_y[x] = (src_y[x] * scale) >> 16;
>+  }
>+}
>+
>+void CopyRow_C(const uint8_t* src, uint8_t* dst, int count) {
>   memcpy(dst, src, count);
> }
> 
>-void CopyRow_16_C(const uint16* src, uint16* dst, int count) {
>+void CopyRow_16_C(const uint16_t* src, uint16_t* dst, int count) {
>   memcpy(dst, src, count * 2);
> }
> 
>-void SetRow_C(uint8* dst, uint8 v8, int width) {
>+void SetRow_C(uint8_t* dst, uint8_t v8, int width) {
>   memset(dst, v8, width);
> }
> 
>-void ARGBSetRow_C(uint8* dst_argb, uint32 v32, int width) {
>-  uint32* d = (uint32*)(dst_argb);
>+void ARGBSetRow_C(uint8_t* dst_argb, uint32_t v32, int width) {
>+  uint32_t* d = (uint32_t*)(dst_argb);
>   int x;
>   for (x = 0; x < width; ++x) {
>     d[x] = v32;
>@@ -1848,10 +2216,10 @@ void ARGBSetRow_C(uint8* dst_argb, uint32 v32, int width) {
> }
> 
> // Filter 2 rows of YUY2 UV's (422) into U and V (420).
>-void YUY2ToUVRow_C(const uint8* src_yuy2,
>+void YUY2ToUVRow_C(const uint8_t* src_yuy2,
>                    int src_stride_yuy2,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width) {
>   // Output a row of UV values, filtering 2 rows of YUY2.
>   int x;
>@@ -1865,9 +2233,9 @@ void YUY2ToUVRow_C(const uint8* src_yuy2,
> }
> 
> // Copy row of YUY2 UV's (422) into U and V (422).
>-void YUY2ToUV422Row_C(const uint8* src_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void YUY2ToUV422Row_C(const uint8_t* src_yuy2,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   // Output a row of UV values.
>   int x;
>@@ -1881,7 +2249,7 @@ void YUY2ToUV422Row_C(const uint8* src_yuy2,
> }
> 
> // Copy row of YUY2 Y's (422) into Y (420/422).
>-void YUY2ToYRow_C(const uint8* src_yuy2, uint8* dst_y, int width) {
>+void YUY2ToYRow_C(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>   // Output a row of Y values.
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -1895,10 +2263,10 @@ void YUY2ToYRow_C(const uint8* src_yuy2, uint8* dst_y, int width) {
> }
> 
> // Filter 2 rows of UYVY UV's (422) into U and V (420).
>-void UYVYToUVRow_C(const uint8* src_uyvy,
>+void UYVYToUVRow_C(const uint8_t* src_uyvy,
>                    int src_stride_uyvy,
>-                   uint8* dst_u,
>-                   uint8* dst_v,
>+                   uint8_t* dst_u,
>+                   uint8_t* dst_v,
>                    int width) {
>   // Output a row of UV values.
>   int x;
>@@ -1912,9 +2280,9 @@ void UYVYToUVRow_C(const uint8* src_uyvy,
> }
> 
> // Copy row of UYVY UV's (422) into U and V (422).
>-void UYVYToUV422Row_C(const uint8* src_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void UYVYToUV422Row_C(const uint8_t* src_uyvy,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   // Output a row of UV values.
>   int x;
>@@ -1928,7 +2296,7 @@ void UYVYToUV422Row_C(const uint8* src_uyvy,
> }
> 
> // Copy row of UYVY Y's (422) into Y (420/422).
>-void UYVYToYRow_C(const uint8* src_uyvy, uint8* dst_y, int width) {
>+void UYVYToYRow_C(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>   // Output a row of Y values.
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -1946,19 +2314,19 @@ void UYVYToYRow_C(const uint8* src_uyvy, uint8* dst_y, int width) {
> // Blend src_argb0 over src_argb1 and store to dst_argb.
> // dst_argb may be src_argb0 or src_argb1.
> // This code mimics the SSSE3 version for better testability.
>-void ARGBBlendRow_C(const uint8* src_argb0,
>-                    const uint8* src_argb1,
>-                    uint8* dst_argb,
>+void ARGBBlendRow_C(const uint8_t* src_argb0,
>+                    const uint8_t* src_argb1,
>+                    uint8_t* dst_argb,
>                     int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>-    uint32 fb = src_argb0[0];
>-    uint32 fg = src_argb0[1];
>-    uint32 fr = src_argb0[2];
>-    uint32 a = src_argb0[3];
>-    uint32 bb = src_argb1[0];
>-    uint32 bg = src_argb1[1];
>-    uint32 br = src_argb1[2];
>+    uint32_t fb = src_argb0[0];
>+    uint32_t fg = src_argb0[1];
>+    uint32_t fr = src_argb0[2];
>+    uint32_t a = src_argb0[3];
>+    uint32_t bb = src_argb1[0];
>+    uint32_t bg = src_argb1[1];
>+    uint32_t br = src_argb1[2];
>     dst_argb[0] = BLEND(fb, bb, a);
>     dst_argb[1] = BLEND(fg, bg, a);
>     dst_argb[2] = BLEND(fr, br, a);
>@@ -1981,13 +2349,13 @@ void ARGBBlendRow_C(const uint8* src_argb0,
>   }
> 
>   if (width & 1) {
>-    uint32 fb = src_argb0[0];
>-    uint32 fg = src_argb0[1];
>-    uint32 fr = src_argb0[2];
>-    uint32 a = src_argb0[3];
>-    uint32 bb = src_argb1[0];
>-    uint32 bg = src_argb1[1];
>-    uint32 br = src_argb1[2];
>+    uint32_t fb = src_argb0[0];
>+    uint32_t fg = src_argb0[1];
>+    uint32_t fr = src_argb0[2];
>+    uint32_t a = src_argb0[3];
>+    uint32_t bb = src_argb1[0];
>+    uint32_t bg = src_argb1[1];
>+    uint32_t br = src_argb1[2];
>     dst_argb[0] = BLEND(fb, bb, a);
>     dst_argb[1] = BLEND(fg, bg, a);
>     dst_argb[2] = BLEND(fr, br, a);
>@@ -1997,10 +2365,10 @@ void ARGBBlendRow_C(const uint8* src_argb0,
> #undef BLEND
> 
> #define UBLEND(f, b, a) (((a)*f) + ((255 - a) * b) + 255) >> 8
>-void BlendPlaneRow_C(const uint8* src0,
>-                     const uint8* src1,
>-                     const uint8* alpha,
>-                     uint8* dst,
>+void BlendPlaneRow_C(const uint8_t* src0,
>+                     const uint8_t* src1,
>+                     const uint8_t* alpha,
>+                     uint8_t* dst,
>                      int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -2021,13 +2389,13 @@ void BlendPlaneRow_C(const uint8* src0,
> 
> // Multiply source RGB by alpha and store to destination.
> // This code mimics the SSSE3 version for better testability.
>-void ARGBAttenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBAttenuateRow_C(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>   int i;
>   for (i = 0; i < width - 1; i += 2) {
>-    uint32 b = src_argb[0];
>-    uint32 g = src_argb[1];
>-    uint32 r = src_argb[2];
>-    uint32 a = src_argb[3];
>+    uint32_t b = src_argb[0];
>+    uint32_t g = src_argb[1];
>+    uint32_t r = src_argb[2];
>+    uint32_t a = src_argb[3];
>     dst_argb[0] = ATTENUATE(b, a);
>     dst_argb[1] = ATTENUATE(g, a);
>     dst_argb[2] = ATTENUATE(r, a);
>@@ -2045,10 +2413,10 @@ void ARGBAttenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
>   }
> 
>   if (width & 1) {
>-    const uint32 b = src_argb[0];
>-    const uint32 g = src_argb[1];
>-    const uint32 r = src_argb[2];
>-    const uint32 a = src_argb[3];
>+    const uint32_t b = src_argb[0];
>+    const uint32_t g = src_argb[1];
>+    const uint32_t r = src_argb[2];
>+    const uint32_t a = src_argb[3];
>     dst_argb[0] = ATTENUATE(b, a);
>     dst_argb[1] = ATTENUATE(g, a);
>     dst_argb[2] = ATTENUATE(r, a);
>@@ -2064,7 +2432,7 @@ void ARGBAttenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
> // Reciprocal method is off by 1 on some values. ie 125
> // 8.8 fixed point inverse table with 1.0 in upper short and 1 / a in lower.
> #define T(a) 0x01000000 + (0x10000 / a)
>-const uint32 fixed_invtbl8[256] = {
>+const uint32_t fixed_invtbl8[256] = {
>     0x01000000, 0x0100ffff, T(0x02), T(0x03),   T(0x04), T(0x05), T(0x06),
>     T(0x07),    T(0x08),    T(0x09), T(0x0a),   T(0x0b), T(0x0c), T(0x0d),
>     T(0x0e),    T(0x0f),    T(0x10), T(0x11),   T(0x12), T(0x13), T(0x14),
>@@ -2104,14 +2472,16 @@ const uint32 fixed_invtbl8[256] = {
>     T(0xfc),    T(0xfd),    T(0xfe), 0x01000100};
> #undef T
> 
>-void ARGBUnattenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBUnattenuateRow_C(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>-    uint32 b = src_argb[0];
>-    uint32 g = src_argb[1];
>-    uint32 r = src_argb[2];
>-    const uint32 a = src_argb[3];
>-    const uint32 ia = fixed_invtbl8[a] & 0xffff;  // 8.8 fixed point
>+    uint32_t b = src_argb[0];
>+    uint32_t g = src_argb[1];
>+    uint32_t r = src_argb[2];
>+    const uint32_t a = src_argb[3];
>+    const uint32_t ia = fixed_invtbl8[a] & 0xffff;  // 8.8 fixed point
>     b = (b * ia) >> 8;
>     g = (g * ia) >> 8;
>     r = (r * ia) >> 8;
>@@ -2125,11 +2495,11 @@ void ARGBUnattenuateRow_C(const uint8* src_argb, uint8* dst_argb, int width) {
>   }
> }
> 
>-void ComputeCumulativeSumRow_C(const uint8* row,
>-                               int32* cumsum,
>-                               const int32* previous_cumsum,
>+void ComputeCumulativeSumRow_C(const uint8_t* row,
>+                               int32_t* cumsum,
>+                               const int32_t* previous_cumsum,
>                                int width) {
>-  int32 row_sum[4] = {0, 0, 0, 0};
>+  int32_t row_sum[4] = {0, 0, 0, 0};
>   int x;
>   for (x = 0; x < width; ++x) {
>     row_sum[0] += row[x * 4 + 0];
>@@ -2143,19 +2513,19 @@ void ComputeCumulativeSumRow_C(const uint8* row,
>   }
> }
> 
>-void CumulativeSumToAverageRow_C(const int32* tl,
>-                                 const int32* bl,
>+void CumulativeSumToAverageRow_C(const int32_t* tl,
>+                                 const int32_t* bl,
>                                  int w,
>                                  int area,
>-                                 uint8* dst,
>+                                 uint8_t* dst,
>                                  int count) {
>   float ooa = 1.0f / area;
>   int i;
>   for (i = 0; i < count; ++i) {
>-    dst[0] = (uint8)((bl[w + 0] + tl[0] - bl[0] - tl[w + 0]) * ooa);
>-    dst[1] = (uint8)((bl[w + 1] + tl[1] - bl[1] - tl[w + 1]) * ooa);
>-    dst[2] = (uint8)((bl[w + 2] + tl[2] - bl[2] - tl[w + 2]) * ooa);
>-    dst[3] = (uint8)((bl[w + 3] + tl[3] - bl[3] - tl[w + 3]) * ooa);
>+    dst[0] = (uint8_t)((bl[w + 0] + tl[0] - bl[0] - tl[w + 0]) * ooa);
>+    dst[1] = (uint8_t)((bl[w + 1] + tl[1] - bl[1] - tl[w + 1]) * ooa);
>+    dst[2] = (uint8_t)((bl[w + 2] + tl[2] - bl[2] - tl[w + 2]) * ooa);
>+    dst[3] = (uint8_t)((bl[w + 3] + tl[3] - bl[3] - tl[w + 3]) * ooa);
>     dst += 4;
>     tl += 4;
>     bl += 4;
>@@ -2164,9 +2534,9 @@ void CumulativeSumToAverageRow_C(const int32* tl,
> 
> // Copy pixels from rotated source to destination row with a slope.
> LIBYUV_API
>-void ARGBAffineRow_C(const uint8* src_argb,
>+void ARGBAffineRow_C(const uint8_t* src_argb,
>                      int src_argb_stride,
>-                     uint8* dst_argb,
>+                     uint8_t* dst_argb,
>                      const float* uv_dudv,
>                      int width) {
>   int i;
>@@ -2177,8 +2547,8 @@ void ARGBAffineRow_C(const uint8* src_argb,
>   for (i = 0; i < width; ++i) {
>     int x = (int)(uv[0]);
>     int y = (int)(uv[1]);
>-    *(uint32*)(dst_argb) =
>-        *(const uint32*)(src_argb + y * src_argb_stride + x * 4);
>+    *(uint32_t*)(dst_argb) =
>+        *(const uint32_t*)(src_argb + y * src_argb_stride + x * 4);
>     dst_argb += 4;
>     uv[0] += uv_dudv[2];
>     uv[1] += uv_dudv[3];
>@@ -2186,9 +2556,9 @@ void ARGBAffineRow_C(const uint8* src_argb,
> }
> 
> // Blend 2 rows into 1.
>-static void HalfRow_C(const uint8* src_uv,
>+static void HalfRow_C(const uint8_t* src_uv,
>                       ptrdiff_t src_uv_stride,
>-                      uint8* dst_uv,
>+                      uint8_t* dst_uv,
>                       int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>@@ -2196,9 +2566,9 @@ static void HalfRow_C(const uint8* src_uv,
>   }
> }
> 
>-static void HalfRow_16_C(const uint16* src_uv,
>+static void HalfRow_16_C(const uint16_t* src_uv,
>                          ptrdiff_t src_uv_stride,
>-                         uint16* dst_uv,
>+                         uint16_t* dst_uv,
>                          int width) {
>   int x;
>   for (x = 0; x < width; ++x) {
>@@ -2207,14 +2577,14 @@ static void HalfRow_16_C(const uint16* src_uv,
> }
> 
> // C version 2x2 -> 2x1.
>-void InterpolateRow_C(uint8* dst_ptr,
>-                      const uint8* src_ptr,
>+void InterpolateRow_C(uint8_t* dst_ptr,
>+                      const uint8_t* src_ptr,
>                       ptrdiff_t src_stride,
>                       int width,
>                       int source_y_fraction) {
>   int y1_fraction = source_y_fraction;
>   int y0_fraction = 256 - y1_fraction;
>-  const uint8* src_ptr1 = src_ptr + src_stride;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride;
>   int x;
>   if (y1_fraction == 0) {
>     memcpy(dst_ptr, src_ptr, width);
>@@ -2239,14 +2609,14 @@ void InterpolateRow_C(uint8* dst_ptr,
>   }
> }
> 
>-void InterpolateRow_16_C(uint16* dst_ptr,
>-                         const uint16* src_ptr,
>+void InterpolateRow_16_C(uint16_t* dst_ptr,
>+                         const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>                          int width,
>                          int source_y_fraction) {
>   int y1_fraction = source_y_fraction;
>   int y0_fraction = 256 - y1_fraction;
>-  const uint16* src_ptr1 = src_ptr + src_stride;
>+  const uint16_t* src_ptr1 = src_ptr + src_stride;
>   int x;
>   if (source_y_fraction == 0) {
>     memcpy(dst_ptr, src_ptr, width * 2);
>@@ -2269,9 +2639,9 @@ void InterpolateRow_16_C(uint16* dst_ptr,
> }
> 
> // Use first 4 shuffler values to reorder ARGB channels.
>-void ARGBShuffleRow_C(const uint8* src_argb,
>-                      uint8* dst_argb,
>-                      const uint8* shuffler,
>+void ARGBShuffleRow_C(const uint8_t* src_argb,
>+                      uint8_t* dst_argb,
>+                      const uint8_t* shuffler,
>                       int width) {
>   int index0 = shuffler[0];
>   int index1 = shuffler[1];
>@@ -2281,10 +2651,10 @@ void ARGBShuffleRow_C(const uint8* src_argb,
>   int x;
>   for (x = 0; x < width; ++x) {
>     // To support in-place conversion.
>-    uint8 b = src_argb[index0];
>-    uint8 g = src_argb[index1];
>-    uint8 r = src_argb[index2];
>-    uint8 a = src_argb[index3];
>+    uint8_t b = src_argb[index0];
>+    uint8_t g = src_argb[index1];
>+    uint8_t r = src_argb[index2];
>+    uint8_t a = src_argb[index3];
>     dst_argb[0] = b;
>     dst_argb[1] = g;
>     dst_argb[2] = r;
>@@ -2294,10 +2664,10 @@ void ARGBShuffleRow_C(const uint8* src_argb,
>   }
> }
> 
>-void I422ToYUY2Row_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_frame,
>+void I422ToYUY2Row_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_frame,
>                      int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -2318,10 +2688,10 @@ void I422ToYUY2Row_C(const uint8* src_y,
>   }
> }
> 
>-void I422ToUYVYRow_C(const uint8* src_y,
>-                     const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_frame,
>+void I422ToUYVYRow_C(const uint8_t* src_y,
>+                     const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_frame,
>                      int width) {
>   int x;
>   for (x = 0; x < width - 1; x += 2) {
>@@ -2342,8 +2712,8 @@ void I422ToUYVYRow_C(const uint8* src_y,
>   }
> }
> 
>-void ARGBPolynomialRow_C(const uint8* src_argb,
>-                         uint8* dst_argb,
>+void ARGBPolynomialRow_C(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>                          const float* poly,
>                          int width) {
>   int i;
>@@ -2373,10 +2743,10 @@ void ARGBPolynomialRow_C(const uint8* src_argb,
>     dr += poly[14] * r3;
>     da += poly[15] * a3;
> 
>-    dst_argb[0] = Clamp((int32)(db));
>-    dst_argb[1] = Clamp((int32)(dg));
>-    dst_argb[2] = Clamp((int32)(dr));
>-    dst_argb[3] = Clamp((int32)(da));
>+    dst_argb[0] = Clamp((int32_t)(db));
>+    dst_argb[1] = Clamp((int32_t)(dg));
>+    dst_argb[2] = Clamp((int32_t)(dr));
>+    dst_argb[3] = Clamp((int32_t)(da));
>     src_argb += 4;
>     dst_argb += 4;
>   }
>@@ -2392,31 +2762,42 @@ void ARGBPolynomialRow_C(const uint8* src_argb,
> // simply extract the low bits of the exponent and the high
> // bits of the mantissa from our float and we're done.
> 
>-void HalfFloatRow_C(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_C(const uint16_t* src,
>+                    uint16_t* dst,
>+                    float scale,
>+                    int width) {
>   int i;
>   float mult = 1.9259299444e-34f * scale;
>   for (i = 0; i < width; ++i) {
>     float value = src[i] * mult;
>-    dst[i] = (uint16)((*(uint32_t*)&value) >> 13);
>+    dst[i] = (uint16_t)((*(uint32_t*)&value) >> 13);
>+  }
>+}
>+
>+void ByteToFloatRow_C(const uint8_t* src, float* dst, float scale, int width) {
>+  int i;
>+  for (i = 0; i < width; ++i) {
>+    float value = src[i] * scale;
>+    dst[i] = value;
>   }
> }
> 
>-void ARGBLumaColorTableRow_C(const uint8* src_argb,
>-                             uint8* dst_argb,
>+void ARGBLumaColorTableRow_C(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>                              int width,
>-                             const uint8* luma,
>-                             uint32 lumacoeff) {
>-  uint32 bc = lumacoeff & 0xff;
>-  uint32 gc = (lumacoeff >> 8) & 0xff;
>-  uint32 rc = (lumacoeff >> 16) & 0xff;
>+                             const uint8_t* luma,
>+                             uint32_t lumacoeff) {
>+  uint32_t bc = lumacoeff & 0xff;
>+  uint32_t gc = (lumacoeff >> 8) & 0xff;
>+  uint32_t rc = (lumacoeff >> 16) & 0xff;
> 
>   int i;
>   for (i = 0; i < width - 1; i += 2) {
>     // Luminance in rows, color values in columns.
>-    const uint8* luma0 =
>+    const uint8_t* luma0 =
>         ((src_argb[0] * bc + src_argb[1] * gc + src_argb[2] * rc) & 0x7F00u) +
>         luma;
>-    const uint8* luma1;
>+    const uint8_t* luma1;
>     dst_argb[0] = luma0[src_argb[0]];
>     dst_argb[1] = luma0[src_argb[1]];
>     dst_argb[2] = luma0[src_argb[2]];
>@@ -2433,7 +2814,7 @@ void ARGBLumaColorTableRow_C(const uint8* src_argb,
>   }
>   if (width & 1) {
>     // Luminance in rows, color values in columns.
>-    const uint8* luma0 =
>+    const uint8_t* luma0 =
>         ((src_argb[0] * bc + src_argb[1] * gc + src_argb[2] * rc) & 0x7F00u) +
>         luma;
>     dst_argb[0] = luma0[src_argb[0]];
>@@ -2443,7 +2824,7 @@ void ARGBLumaColorTableRow_C(const uint8* src_argb,
>   }
> }
> 
>-void ARGBCopyAlphaRow_C(const uint8* src, uint8* dst, int width) {
>+void ARGBCopyAlphaRow_C(const uint8_t* src, uint8_t* dst, int width) {
>   int i;
>   for (i = 0; i < width - 1; i += 2) {
>     dst[3] = src[3];
>@@ -2456,7 +2837,7 @@ void ARGBCopyAlphaRow_C(const uint8* src, uint8* dst, int width) {
>   }
> }
> 
>-void ARGBExtractAlphaRow_C(const uint8* src_argb, uint8* dst_a, int width) {
>+void ARGBExtractAlphaRow_C(const uint8_t* src_argb, uint8_t* dst_a, int width) {
>   int i;
>   for (i = 0; i < width - 1; i += 2) {
>     dst_a[0] = src_argb[3];
>@@ -2469,7 +2850,7 @@ void ARGBExtractAlphaRow_C(const uint8* src_argb, uint8* dst_a, int width) {
>   }
> }
> 
>-void ARGBCopyYToAlphaRow_C(const uint8* src, uint8* dst, int width) {
>+void ARGBCopyYToAlphaRow_C(const uint8_t* src, uint8_t* dst, int width) {
>   int i;
>   for (i = 0; i < width - 1; i += 2) {
>     dst[3] = src[0];
>@@ -2488,13 +2869,13 @@ void ARGBCopyYToAlphaRow_C(const uint8* src, uint8* dst, int width) {
> #if !(defined(_MSC_VER) && defined(_M_IX86)) && \
>     defined(HAS_I422TORGB565ROW_SSSE3)
> // row_win.cc has asm version, but GCC uses 2 step wrapper.
>-void I422ToRGB565Row_SSSE3(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_rgb565,
>+void I422ToRGB565Row_SSSE3(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_rgb565,
>                            const struct YuvConstants* yuvconstants,
>                            int width) {
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_SSSE3(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2509,14 +2890,14 @@ void I422ToRGB565Row_SSSE3(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TOARGB1555ROW_SSSE3)
>-void I422ToARGB1555Row_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb1555,
>+void I422ToARGB1555Row_SSSE3(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             uint8_t* dst_argb1555,
>                              const struct YuvConstants* yuvconstants,
>                              int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_SSSE3(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2531,14 +2912,14 @@ void I422ToARGB1555Row_SSSE3(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TOARGB4444ROW_SSSE3)
>-void I422ToARGB4444Row_SSSE3(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             uint8* dst_argb4444,
>+void I422ToARGB4444Row_SSSE3(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             uint8_t* dst_argb4444,
>                              const struct YuvConstants* yuvconstants,
>                              int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_SSSE3(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2553,13 +2934,13 @@ void I422ToARGB4444Row_SSSE3(const uint8* src_y,
> #endif
> 
> #if defined(HAS_NV12TORGB565ROW_SSSE3)
>-void NV12ToRGB565Row_SSSE3(const uint8* src_y,
>-                           const uint8* src_uv,
>-                           uint8* dst_rgb565,
>+void NV12ToRGB565Row_SSSE3(const uint8_t* src_y,
>+                           const uint8_t* src_uv,
>+                           uint8_t* dst_rgb565,
>                            const struct YuvConstants* yuvconstants,
>                            int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     NV12ToARGBRow_SSSE3(src_y, src_uv, row, yuvconstants, twidth);
>@@ -2573,13 +2954,13 @@ void NV12ToRGB565Row_SSSE3(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TORGB565ROW_AVX2)
>-void I422ToRGB565Row_AVX2(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_rgb565,
>+void I422ToRGB565Row_AVX2(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2598,14 +2979,14 @@ void I422ToRGB565Row_AVX2(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TOARGB1555ROW_AVX2)
>-void I422ToARGB1555Row_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb1555,
>+void I422ToARGB1555Row_AVX2(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb1555,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2624,14 +3005,14 @@ void I422ToARGB1555Row_AVX2(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TOARGB4444ROW_AVX2)
>-void I422ToARGB4444Row_AVX2(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb4444,
>+void I422ToARGB4444Row_AVX2(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb4444,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2650,14 +3031,14 @@ void I422ToARGB4444Row_AVX2(const uint8* src_y,
> #endif
> 
> #if defined(HAS_I422TORGB24ROW_AVX2)
>-void I422ToRGB24Row_AVX2(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb24,
>+void I422ToRGB24Row_AVX2(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb24,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
>@@ -2673,13 +3054,13 @@ void I422ToRGB24Row_AVX2(const uint8* src_y,
> #endif
> 
> #if defined(HAS_NV12TORGB565ROW_AVX2)
>-void NV12ToRGB565Row_AVX2(const uint8* src_y,
>-                          const uint8* src_uv,
>-                          uint8* dst_rgb565,
>+void NV12ToRGB565Row_AVX2(const uint8_t* src_y,
>+                          const uint8_t* src_uv,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   // Row buffer for intermediate ARGB pixels.
>-  SIMD_ALIGNED(uint8 row[MAXTWIDTH * 4]);
>+  SIMD_ALIGNED(uint8_t row[MAXTWIDTH * 4]);
>   while (width > 0) {
>     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
>     NV12ToARGBRow_AVX2(src_y, src_uv, row, yuvconstants, twidth);
>@@ -2729,7 +3110,7 @@ void ScaleSamples_C(const float* src, float* dst, float scale, int width) {
>   }
> }
> 
>-void GaussRow_C(const uint32* src, uint16* dst, int width) {
>+void GaussRow_C(const uint32_t* src, uint16_t* dst, int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>     *dst++ =
>@@ -2739,12 +3120,12 @@ void GaussRow_C(const uint32* src, uint16* dst, int width) {
> }
> 
> // filter 5 rows with 1, 4, 6, 4, 1 coefficients to produce 1 row.
>-void GaussCol_C(const uint16* src0,
>-                const uint16* src1,
>-                const uint16* src2,
>-                const uint16* src3,
>-                const uint16* src4,
>-                uint32* dst,
>+void GaussCol_C(const uint16_t* src0,
>+                const uint16_t* src1,
>+                const uint16_t* src2,
>+                const uint16_t* src3,
>+                const uint16_t* src4,
>+                uint32_t* dst,
>                 int width) {
>   int i;
>   for (i = 0; i < width; ++i) {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_gcc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_gcc.cc
>index b5c2e65c9381bec1ae2f1428d7a02cca6534b232..95845c2592f7c84307c37b00bf18274ea83b8cc9 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_gcc.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_gcc.cc
>@@ -22,80 +22,80 @@ extern "C" {
> #if defined(HAS_ARGBTOYROW_SSSE3) || defined(HAS_ARGBGRAYROW_SSSE3)
> 
> // Constants for ARGB
>-static vec8 kARGBToY = {13, 65, 33, 0, 13, 65, 33, 0,
>-                        13, 65, 33, 0, 13, 65, 33, 0};
>+static const vec8 kARGBToY = {13, 65, 33, 0, 13, 65, 33, 0,
>+                              13, 65, 33, 0, 13, 65, 33, 0};
> 
> // JPeg full range.
>-static vec8 kARGBToYJ = {15, 75, 38, 0, 15, 75, 38, 0,
>-                         15, 75, 38, 0, 15, 75, 38, 0};
>+static const vec8 kARGBToYJ = {15, 75, 38, 0, 15, 75, 38, 0,
>+                               15, 75, 38, 0, 15, 75, 38, 0};
> #endif  // defined(HAS_ARGBTOYROW_SSSE3) || defined(HAS_ARGBGRAYROW_SSSE3)
> 
> #if defined(HAS_ARGBTOYROW_SSSE3) || defined(HAS_I422TOARGBROW_SSSE3)
> 
>-static vec8 kARGBToU = {112, -74, -38, 0, 112, -74, -38, 0,
>-                        112, -74, -38, 0, 112, -74, -38, 0};
>+static const vec8 kARGBToU = {112, -74, -38, 0, 112, -74, -38, 0,
>+                              112, -74, -38, 0, 112, -74, -38, 0};
> 
>-static vec8 kARGBToUJ = {127, -84, -43, 0, 127, -84, -43, 0,
>-                         127, -84, -43, 0, 127, -84, -43, 0};
>+static const vec8 kARGBToUJ = {127, -84, -43, 0, 127, -84, -43, 0,
>+                               127, -84, -43, 0, 127, -84, -43, 0};
> 
>-static vec8 kARGBToV = {-18, -94, 112, 0, -18, -94, 112, 0,
>-                        -18, -94, 112, 0, -18, -94, 112, 0};
>+static const vec8 kARGBToV = {-18, -94, 112, 0, -18, -94, 112, 0,
>+                              -18, -94, 112, 0, -18, -94, 112, 0};
> 
>-static vec8 kARGBToVJ = {-20, -107, 127, 0, -20, -107, 127, 0,
>-                         -20, -107, 127, 0, -20, -107, 127, 0};
>+static const vec8 kARGBToVJ = {-20, -107, 127, 0, -20, -107, 127, 0,
>+                               -20, -107, 127, 0, -20, -107, 127, 0};
> 
> // Constants for BGRA
>-static vec8 kBGRAToY = {0, 33, 65, 13, 0, 33, 65, 13,
>-                        0, 33, 65, 13, 0, 33, 65, 13};
>+static const vec8 kBGRAToY = {0, 33, 65, 13, 0, 33, 65, 13,
>+                              0, 33, 65, 13, 0, 33, 65, 13};
> 
>-static vec8 kBGRAToU = {0, -38, -74, 112, 0, -38, -74, 112,
>-                        0, -38, -74, 112, 0, -38, -74, 112};
>+static const vec8 kBGRAToU = {0, -38, -74, 112, 0, -38, -74, 112,
>+                              0, -38, -74, 112, 0, -38, -74, 112};
> 
>-static vec8 kBGRAToV = {0, 112, -94, -18, 0, 112, -94, -18,
>-                        0, 112, -94, -18, 0, 112, -94, -18};
>+static const vec8 kBGRAToV = {0, 112, -94, -18, 0, 112, -94, -18,
>+                              0, 112, -94, -18, 0, 112, -94, -18};
> 
> // Constants for ABGR
>-static vec8 kABGRToY = {33, 65, 13, 0, 33, 65, 13, 0,
>-                        33, 65, 13, 0, 33, 65, 13, 0};
>+static const vec8 kABGRToY = {33, 65, 13, 0, 33, 65, 13, 0,
>+                              33, 65, 13, 0, 33, 65, 13, 0};
> 
>-static vec8 kABGRToU = {-38, -74, 112, 0, -38, -74, 112, 0,
>-                        -38, -74, 112, 0, -38, -74, 112, 0};
>+static const vec8 kABGRToU = {-38, -74, 112, 0, -38, -74, 112, 0,
>+                              -38, -74, 112, 0, -38, -74, 112, 0};
> 
>-static vec8 kABGRToV = {112, -94, -18, 0, 112, -94, -18, 0,
>-                        112, -94, -18, 0, 112, -94, -18, 0};
>+static const vec8 kABGRToV = {112, -94, -18, 0, 112, -94, -18, 0,
>+                              112, -94, -18, 0, 112, -94, -18, 0};
> 
> // Constants for RGBA.
>-static vec8 kRGBAToY = {0, 13, 65, 33, 0, 13, 65, 33,
>-                        0, 13, 65, 33, 0, 13, 65, 33};
>+static const vec8 kRGBAToY = {0, 13, 65, 33, 0, 13, 65, 33,
>+                              0, 13, 65, 33, 0, 13, 65, 33};
> 
>-static vec8 kRGBAToU = {0, 112, -74, -38, 0, 112, -74, -38,
>-                        0, 112, -74, -38, 0, 112, -74, -38};
>+static const vec8 kRGBAToU = {0, 112, -74, -38, 0, 112, -74, -38,
>+                              0, 112, -74, -38, 0, 112, -74, -38};
> 
>-static vec8 kRGBAToV = {0, -18, -94, 112, 0, -18, -94, 112,
>-                        0, -18, -94, 112, 0, -18, -94, 112};
>+static const vec8 kRGBAToV = {0, -18, -94, 112, 0, -18, -94, 112,
>+                              0, -18, -94, 112, 0, -18, -94, 112};
> 
>-static uvec8 kAddY16 = {16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u,
>-                        16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u};
>+static const uvec8 kAddY16 = {16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u,
>+                              16u, 16u, 16u, 16u, 16u, 16u, 16u, 16u};
> 
> // 7 bit fixed point 0.5.
>-static vec16 kAddYJ64 = {64, 64, 64, 64, 64, 64, 64, 64};
>+static const vec16 kAddYJ64 = {64, 64, 64, 64, 64, 64, 64, 64};
> 
>-static uvec8 kAddUV128 = {128u, 128u, 128u, 128u, 128u, 128u, 128u, 128u,
>-                          128u, 128u, 128u, 128u, 128u, 128u, 128u, 128u};
>+static const uvec8 kAddUV128 = {128u, 128u, 128u, 128u, 128u, 128u, 128u, 128u,
>+                                128u, 128u, 128u, 128u, 128u, 128u, 128u, 128u};
> 
>-static uvec16 kAddUVJ128 = {0x8080u, 0x8080u, 0x8080u, 0x8080u,
>-                            0x8080u, 0x8080u, 0x8080u, 0x8080u};
>+static const uvec16 kAddUVJ128 = {0x8080u, 0x8080u, 0x8080u, 0x8080u,
>+                                  0x8080u, 0x8080u, 0x8080u, 0x8080u};
> #endif  // defined(HAS_ARGBTOYROW_SSSE3) || defined(HAS_I422TOARGBROW_SSSE3)
> 
> #ifdef HAS_RGB24TOARGBROW_SSSE3
> 
> // Shuffle table for converting RGB24 to ARGB.
>-static uvec8 kShuffleMaskRGB24ToARGB = {0u, 1u, 2u, 12u, 3u, 4u,  5u,  13u,
>-                                        6u, 7u, 8u, 14u, 9u, 10u, 11u, 15u};
>+static const uvec8 kShuffleMaskRGB24ToARGB = {
>+    0u, 1u, 2u, 12u, 3u, 4u, 5u, 13u, 6u, 7u, 8u, 14u, 9u, 10u, 11u, 15u};
> 
> // Shuffle table for converting RAW to ARGB.
>-static uvec8 kShuffleMaskRAWToARGB = {2u, 1u, 0u, 12u, 5u,  4u,  3u, 13u,
>-                                      8u, 7u, 6u, 14u, 11u, 10u, 9u, 15u};
>+static const uvec8 kShuffleMaskRAWToARGB = {2u, 1u, 0u, 12u, 5u,  4u,  3u, 13u,
>+                                            8u, 7u, 6u, 14u, 11u, 10u, 9u, 15u};
> 
> // Shuffle table for converting RAW to RGB24.  First 8.
> static const uvec8 kShuffleMaskRAWToRGB24_0 = {
>@@ -113,15 +113,15 @@ static const uvec8 kShuffleMaskRAWToRGB24_2 = {
>     128u, 128u, 128u, 128u, 128u, 128u, 128u, 128u};
> 
> // Shuffle table for converting ARGB to RGB24.
>-static uvec8 kShuffleMaskARGBToRGB24 = {
>+static const uvec8 kShuffleMaskARGBToRGB24 = {
>     0u, 1u, 2u, 4u, 5u, 6u, 8u, 9u, 10u, 12u, 13u, 14u, 128u, 128u, 128u, 128u};
> 
> // Shuffle table for converting ARGB to RAW.
>-static uvec8 kShuffleMaskARGBToRAW = {
>+static const uvec8 kShuffleMaskARGBToRAW = {
>     2u, 1u, 0u, 6u, 5u, 4u, 10u, 9u, 8u, 14u, 13u, 12u, 128u, 128u, 128u, 128u};
> 
> // Shuffle table for converting ARGBToRGB24 for I422ToRGB24.  First 8 + next 4
>-static uvec8 kShuffleMaskARGBToRGB24_0 = {
>+static const uvec8 kShuffleMaskARGBToRGB24_0 = {
>     0u, 1u, 2u, 4u, 5u, 6u, 8u, 9u, 128u, 128u, 128u, 128u, 10u, 12u, 13u, 14u};
> 
> // YUY2 shuf 16 Y to 32 Y.
>@@ -152,392 +152,399 @@ static const lvec8 kShuffleNV21 = {
> #endif  // HAS_RGB24TOARGBROW_SSSE3
> 
> #ifdef HAS_J400TOARGBROW_SSE2
>-void J400ToARGBRow_SSE2(const uint8* src_y, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "pslld     $0x18,%%xmm5                    \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklwd %%xmm0,%%xmm0                   \n"
>-    "punpckhwd %%xmm1,%%xmm1                   \n"
>-    "por       %%xmm5,%%xmm0                   \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_y),     // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)        // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm5"
>-  );
>+void J400ToARGBRow_SSE2(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "pslld     $0x18,%%xmm5                    \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm0                     \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklwd %%xmm0,%%xmm0                   \n"
>+      "punpckhwd %%xmm1,%%xmm1                   \n"
>+      "por       %%xmm5,%%xmm0                   \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_y),     // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm5");
> }
> #endif  // HAS_J400TOARGBROW_SSE2
> 
> #ifdef HAS_RGB24TOARGBROW_SSSE3
>-void RGB24ToARGBRow_SSSE3(const uint8* src_rgb24, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"  // generate mask 0xff000000
>-    "pslld     $0x18,%%xmm5                    \n"
>-    "movdqa    %3,%%xmm4                       \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x30,0) ",%0           \n"
>-    "movdqa    %%xmm3,%%xmm2                   \n"
>-    "palignr   $0x8,%%xmm1,%%xmm2              \n"
>-    "pshufb    %%xmm4,%%xmm2                   \n"
>-    "por       %%xmm5,%%xmm2                   \n"
>-    "palignr   $0xc,%%xmm0,%%xmm1              \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x20,1) "   \n"
>-    "por       %%xmm5,%%xmm0                   \n"
>-    "pshufb    %%xmm4,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "palignr   $0x4,%%xmm3,%%xmm3              \n"
>-    "pshufb    %%xmm4,%%xmm3                   \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "por       %%xmm5,%%xmm3                   \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x30,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_rgb24),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)        // %2
>-  : "m"(kShuffleMaskRGB24ToARGB)  // %3
>-  : "memory", "cc" , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+void RGB24ToARGBRow_SSSE3(const uint8_t* src_rgb24,
>+                          uint8_t* dst_argb,
>+                          int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"  // 0xff000000
>+      "pslld     $0x18,%%xmm5                    \n"
>+      "movdqa    %3,%%xmm4                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm3                 \n"
>+      "lea       0x30(%0),%0                     \n"
>+      "movdqa    %%xmm3,%%xmm2                   \n"
>+      "palignr   $0x8,%%xmm1,%%xmm2              \n"
>+      "pshufb    %%xmm4,%%xmm2                   \n"
>+      "por       %%xmm5,%%xmm2                   \n"
>+      "palignr   $0xc,%%xmm0,%%xmm1              \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "movdqu    %%xmm2,0x20(%1)                 \n"
>+      "por       %%xmm5,%%xmm0                   \n"
>+      "pshufb    %%xmm4,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "palignr   $0x4,%%xmm3,%%xmm3              \n"
>+      "pshufb    %%xmm4,%%xmm3                   \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "por       %%xmm5,%%xmm3                   \n"
>+      "movdqu    %%xmm3,0x30(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_rgb24),              // %0
>+        "+r"(dst_argb),               // %1
>+        "+r"(width)                   // %2
>+      : "m"(kShuffleMaskRGB24ToARGB)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void RAWToARGBRow_SSSE3(const uint8* src_raw, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"  // generate mask 0xff000000
>-    "pslld     $0x18,%%xmm5                    \n"
>-    "movdqa    %3,%%xmm4                       \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x30,0) ",%0           \n"
>-    "movdqa    %%xmm3,%%xmm2                   \n"
>-    "palignr   $0x8,%%xmm1,%%xmm2              \n"
>-    "pshufb    %%xmm4,%%xmm2                   \n"
>-    "por       %%xmm5,%%xmm2                   \n"
>-    "palignr   $0xc,%%xmm0,%%xmm1              \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x20,1) "   \n"
>-    "por       %%xmm5,%%xmm0                   \n"
>-    "pshufb    %%xmm4,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "palignr   $0x4,%%xmm3,%%xmm3              \n"
>-    "pshufb    %%xmm4,%%xmm3                   \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "por       %%xmm5,%%xmm3                   \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x30,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_raw),   // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)        // %2
>-  : "m"(kShuffleMaskRAWToARGB)  // %3
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+void RAWToARGBRow_SSSE3(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"  // 0xff000000
>+      "pslld     $0x18,%%xmm5                    \n"
>+      "movdqa    %3,%%xmm4                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm3                 \n"
>+      "lea       0x30(%0),%0                     \n"
>+      "movdqa    %%xmm3,%%xmm2                   \n"
>+      "palignr   $0x8,%%xmm1,%%xmm2              \n"
>+      "pshufb    %%xmm4,%%xmm2                   \n"
>+      "por       %%xmm5,%%xmm2                   \n"
>+      "palignr   $0xc,%%xmm0,%%xmm1              \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "movdqu    %%xmm2,0x20(%1)                 \n"
>+      "por       %%xmm5,%%xmm0                   \n"
>+      "pshufb    %%xmm4,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "palignr   $0x4,%%xmm3,%%xmm3              \n"
>+      "pshufb    %%xmm4,%%xmm3                   \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "por       %%xmm5,%%xmm3                   \n"
>+      "movdqu    %%xmm3,0x30(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_raw),              // %0
>+        "+r"(dst_argb),             // %1
>+        "+r"(width)                 // %2
>+      : "m"(kShuffleMaskRAWToARGB)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void RAWToRGB24Row_SSSE3(const uint8* src_raw, uint8* dst_rgb24, int width) {
>-  asm volatile (
>-   "movdqa     %3,%%xmm3                       \n"
>-   "movdqa     %4,%%xmm4                       \n"
>-   "movdqa     %5,%%xmm5                       \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x4,0) ",%%xmm1    \n"
>-    "movdqu    " MEMACCESS2(0x8,0) ",%%xmm2    \n"
>-    "lea       " MEMLEA(0x18,0) ",%0           \n"
>-    "pshufb    %%xmm3,%%xmm0                   \n"
>-    "pshufb    %%xmm4,%%xmm1                   \n"
>-    "pshufb    %%xmm5,%%xmm2                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "movq      %%xmm1," MEMACCESS2(0x8,1) "    \n"
>-    "movq      %%xmm2," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x18,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_raw),    // %0
>-    "+r"(dst_rgb24),  // %1
>-    "+r"(width)       // %2
>-  : "m"(kShuffleMaskRAWToRGB24_0),  // %3
>-    "m"(kShuffleMaskRAWToRGB24_1),  // %4
>-    "m"(kShuffleMaskRAWToRGB24_2)   // %5
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+void RAWToRGB24Row_SSSE3(const uint8_t* src_raw,
>+                         uint8_t* dst_rgb24,
>+                         int width) {
>+  asm volatile(
>+      "movdqa     %3,%%xmm3                       \n"
>+      "movdqa     %4,%%xmm4                       \n"
>+      "movdqa     %5,%%xmm5                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x4(%0),%%xmm1                  \n"
>+      "movdqu    0x8(%0),%%xmm2                  \n"
>+      "lea       0x18(%0),%0                     \n"
>+      "pshufb    %%xmm3,%%xmm0                   \n"
>+      "pshufb    %%xmm4,%%xmm1                   \n"
>+      "pshufb    %%xmm5,%%xmm2                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq      %%xmm1,0x8(%1)                  \n"
>+      "movq      %%xmm2,0x10(%1)                 \n"
>+      "lea       0x18(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_raw),                  // %0
>+        "+r"(dst_rgb24),                // %1
>+        "+r"(width)                     // %2
>+      : "m"(kShuffleMaskRAWToRGB24_0),  // %3
>+        "m"(kShuffleMaskRAWToRGB24_1),  // %4
>+        "m"(kShuffleMaskRAWToRGB24_2)   // %5
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void RGB565ToARGBRow_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "mov       $0x1080108,%%eax                \n"
>-    "movd      %%eax,%%xmm5                    \n"
>-    "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>-    "mov       $0x20802080,%%eax               \n"
>-    "movd      %%eax,%%xmm6                    \n"
>-    "pshufd    $0x0,%%xmm6,%%xmm6              \n"
>-    "pcmpeqb   %%xmm3,%%xmm3                   \n"
>-    "psllw     $0xb,%%xmm3                     \n"
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "psllw     $0xa,%%xmm4                     \n"
>-    "psrlw     $0x5,%%xmm4                     \n"
>-    "pcmpeqb   %%xmm7,%%xmm7                   \n"
>-    "psllw     $0x8,%%xmm7                     \n"
>-    "sub       %0,%1                           \n"
>-    "sub       %0,%1                           \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "pand      %%xmm3,%%xmm1                   \n"
>-    "psllw     $0xb,%%xmm2                     \n"
>-    "pmulhuw   %%xmm5,%%xmm1                   \n"
>-    "pmulhuw   %%xmm5,%%xmm2                   \n"
>-    "psllw     $0x8,%%xmm1                     \n"
>-    "por       %%xmm2,%%xmm1                   \n"
>-    "pand      %%xmm4,%%xmm0                   \n"
>-    "pmulhuw   %%xmm6,%%xmm0                   \n"
>-    "por       %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "punpcklbw %%xmm0,%%xmm1                   \n"
>-    "punpckhbw %%xmm0,%%xmm2                   \n"
>-    MEMOPMEM(movdqu,xmm1,0x00,1,0,2)           //  movdqu  %%xmm1,(%1,%0,2)
>-    MEMOPMEM(movdqu,xmm2,0x10,1,0,2)           //  movdqu  %%xmm2,0x10(%1,%0,2)
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :
>-  : "memory", "cc", "eax", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+void RGB565ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "mov       $0x1080108,%%eax                \n"
>+      "movd      %%eax,%%xmm5                    \n"
>+      "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>+      "mov       $0x20802080,%%eax               \n"
>+      "movd      %%eax,%%xmm6                    \n"
>+      "pshufd    $0x0,%%xmm6,%%xmm6              \n"
>+      "pcmpeqb   %%xmm3,%%xmm3                   \n"
>+      "psllw     $0xb,%%xmm3                     \n"
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "psllw     $0xa,%%xmm4                     \n"
>+      "psrlw     $0x5,%%xmm4                     \n"
>+      "pcmpeqb   %%xmm7,%%xmm7                   \n"
>+      "psllw     $0x8,%%xmm7                     \n"
>+      "sub       %0,%1                           \n"
>+      "sub       %0,%1                           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "pand      %%xmm3,%%xmm1                   \n"
>+      "psllw     $0xb,%%xmm2                     \n"
>+      "pmulhuw   %%xmm5,%%xmm1                   \n"
>+      "pmulhuw   %%xmm5,%%xmm2                   \n"
>+      "psllw     $0x8,%%xmm1                     \n"
>+      "por       %%xmm2,%%xmm1                   \n"
>+      "pand      %%xmm4,%%xmm0                   \n"
>+      "pmulhuw   %%xmm6,%%xmm0                   \n"
>+      "por       %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "punpcklbw %%xmm0,%%xmm1                   \n"
>+      "punpckhbw %%xmm0,%%xmm2                   \n"
>+      "movdqu    %%xmm1,0x00(%1,%0,2)            \n"
>+      "movdqu    %%xmm2,0x10(%1,%0,2)            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5",
>+        "xmm6", "xmm7");
> }
> 
>-void ARGB1555ToARGBRow_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "mov       $0x1080108,%%eax                \n"
>-    "movd      %%eax,%%xmm5                    \n"
>-    "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>-    "mov       $0x42004200,%%eax               \n"
>-    "movd      %%eax,%%xmm6                    \n"
>-    "pshufd    $0x0,%%xmm6,%%xmm6              \n"
>-    "pcmpeqb   %%xmm3,%%xmm3                   \n"
>-    "psllw     $0xb,%%xmm3                     \n"
>-    "movdqa    %%xmm3,%%xmm4                   \n"
>-    "psrlw     $0x6,%%xmm4                     \n"
>-    "pcmpeqb   %%xmm7,%%xmm7                   \n"
>-    "psllw     $0x8,%%xmm7                     \n"
>-    "sub       %0,%1                           \n"
>-    "sub       %0,%1                           \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "psllw     $0x1,%%xmm1                     \n"
>-    "psllw     $0xb,%%xmm2                     \n"
>-    "pand      %%xmm3,%%xmm1                   \n"
>-    "pmulhuw   %%xmm5,%%xmm2                   \n"
>-    "pmulhuw   %%xmm5,%%xmm1                   \n"
>-    "psllw     $0x8,%%xmm1                     \n"
>-    "por       %%xmm2,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "pand      %%xmm4,%%xmm0                   \n"
>-    "psraw     $0x8,%%xmm2                     \n"
>-    "pmulhuw   %%xmm6,%%xmm0                   \n"
>-    "pand      %%xmm7,%%xmm2                   \n"
>-    "por       %%xmm2,%%xmm0                   \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "punpcklbw %%xmm0,%%xmm1                   \n"
>-    "punpckhbw %%xmm0,%%xmm2                   \n"
>-    MEMOPMEM(movdqu,xmm1,0x00,1,0,2)           //  movdqu  %%xmm1,(%1,%0,2)
>-    MEMOPMEM(movdqu,xmm2,0x10,1,0,2)           //  movdqu  %%xmm2,0x10(%1,%0,2)
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :
>-  : "memory", "cc", "eax", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+void ARGB1555ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "mov       $0x1080108,%%eax                \n"
>+      "movd      %%eax,%%xmm5                    \n"
>+      "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>+      "mov       $0x42004200,%%eax               \n"
>+      "movd      %%eax,%%xmm6                    \n"
>+      "pshufd    $0x0,%%xmm6,%%xmm6              \n"
>+      "pcmpeqb   %%xmm3,%%xmm3                   \n"
>+      "psllw     $0xb,%%xmm3                     \n"
>+      "movdqa    %%xmm3,%%xmm4                   \n"
>+      "psrlw     $0x6,%%xmm4                     \n"
>+      "pcmpeqb   %%xmm7,%%xmm7                   \n"
>+      "psllw     $0x8,%%xmm7                     \n"
>+      "sub       %0,%1                           \n"
>+      "sub       %0,%1                           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "psllw     $0x1,%%xmm1                     \n"
>+      "psllw     $0xb,%%xmm2                     \n"
>+      "pand      %%xmm3,%%xmm1                   \n"
>+      "pmulhuw   %%xmm5,%%xmm2                   \n"
>+      "pmulhuw   %%xmm5,%%xmm1                   \n"
>+      "psllw     $0x8,%%xmm1                     \n"
>+      "por       %%xmm2,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "pand      %%xmm4,%%xmm0                   \n"
>+      "psraw     $0x8,%%xmm2                     \n"
>+      "pmulhuw   %%xmm6,%%xmm0                   \n"
>+      "pand      %%xmm7,%%xmm2                   \n"
>+      "por       %%xmm2,%%xmm0                   \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "punpcklbw %%xmm0,%%xmm1                   \n"
>+      "punpckhbw %%xmm0,%%xmm2                   \n"
>+      "movdqu    %%xmm1,0x00(%1,%0,2)            \n"
>+      "movdqu    %%xmm2,0x10(%1,%0,2)            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5",
>+        "xmm6", "xmm7");
> }
> 
>-void ARGB4444ToARGBRow_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "mov       $0xf0f0f0f,%%eax                \n"
>-    "movd      %%eax,%%xmm4                    \n"
>-    "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>-    "movdqa    %%xmm4,%%xmm5                   \n"
>-    "pslld     $0x4,%%xmm5                     \n"
>-    "sub       %0,%1                           \n"
>-    "sub       %0,%1                           \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "pand      %%xmm4,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm3                   \n"
>-    "psllw     $0x4,%%xmm1                     \n"
>-    "psrlw     $0x4,%%xmm3                     \n"
>-    "por       %%xmm1,%%xmm0                   \n"
>-    "por       %%xmm3,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm2,%%xmm0                   \n"
>-    "punpckhbw %%xmm2,%%xmm1                   \n"
>-    MEMOPMEM(movdqu,xmm0,0x00,1,0,2)           //  movdqu  %%xmm0,(%1,%0,2)
>-    MEMOPMEM(movdqu,xmm1,0x10,1,0,2)           //  movdqu  %%xmm1,0x10(%1,%0,2)
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :
>-  : "memory", "cc", "eax", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+void ARGB4444ToARGBRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "mov       $0xf0f0f0f,%%eax                \n"
>+      "movd      %%eax,%%xmm4                    \n"
>+      "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>+      "movdqa    %%xmm4,%%xmm5                   \n"
>+      "pslld     $0x4,%%xmm5                     \n"
>+      "sub       %0,%1                           \n"
>+      "sub       %0,%1                           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "pand      %%xmm4,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm3                   \n"
>+      "psllw     $0x4,%%xmm1                     \n"
>+      "psrlw     $0x4,%%xmm3                     \n"
>+      "por       %%xmm1,%%xmm0                   \n"
>+      "por       %%xmm3,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklbw %%xmm2,%%xmm0                   \n"
>+      "punpckhbw %%xmm2,%%xmm1                   \n"
>+      "movdqu    %%xmm0,0x00(%1,%0,2)            \n"
>+      "movdqu    %%xmm1,0x10(%1,%0,2)            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void ARGBToRGB24Row_SSSE3(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "movdqa    %3,%%xmm6                       \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "pshufb    %%xmm6,%%xmm0                   \n"
>-    "pshufb    %%xmm6,%%xmm1                   \n"
>-    "pshufb    %%xmm6,%%xmm2                   \n"
>-    "pshufb    %%xmm6,%%xmm3                   \n"
>-    "movdqa    %%xmm1,%%xmm4                   \n"
>-    "psrldq    $0x4,%%xmm1                     \n"
>-    "pslldq    $0xc,%%xmm4                     \n"
>-    "movdqa    %%xmm2,%%xmm5                   \n"
>-    "por       %%xmm4,%%xmm0                   \n"
>-    "pslldq    $0x8,%%xmm5                     \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "psrldq    $0x8,%%xmm2                     \n"
>-    "pslldq    $0x4,%%xmm3                     \n"
>-    "por       %%xmm3,%%xmm2                   \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x30,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  : "m"(kShuffleMaskARGBToRGB24)  // %3
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+void ARGBToRGB24Row_SSSE3(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+
>+      "movdqa    %3,%%xmm6                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "pshufb    %%xmm6,%%xmm0                   \n"
>+      "pshufb    %%xmm6,%%xmm1                   \n"
>+      "pshufb    %%xmm6,%%xmm2                   \n"
>+      "pshufb    %%xmm6,%%xmm3                   \n"
>+      "movdqa    %%xmm1,%%xmm4                   \n"
>+      "psrldq    $0x4,%%xmm1                     \n"
>+      "pslldq    $0xc,%%xmm4                     \n"
>+      "movdqa    %%xmm2,%%xmm5                   \n"
>+      "por       %%xmm4,%%xmm0                   \n"
>+      "pslldq    $0x8,%%xmm5                     \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "psrldq    $0x8,%%xmm2                     \n"
>+      "pslldq    $0x4,%%xmm3                     \n"
>+      "por       %%xmm3,%%xmm2                   \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "movdqu    %%xmm2,0x20(%1)                 \n"
>+      "lea       0x30(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),                    // %0
>+        "+r"(dst),                    // %1
>+        "+r"(width)                   // %2
>+      : "m"(kShuffleMaskARGBToRGB24)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> 
>-void ARGBToRAWRow_SSSE3(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "movdqa    %3,%%xmm6                       \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "pshufb    %%xmm6,%%xmm0                   \n"
>-    "pshufb    %%xmm6,%%xmm1                   \n"
>-    "pshufb    %%xmm6,%%xmm2                   \n"
>-    "pshufb    %%xmm6,%%xmm3                   \n"
>-    "movdqa    %%xmm1,%%xmm4                   \n"
>-    "psrldq    $0x4,%%xmm1                     \n"
>-    "pslldq    $0xc,%%xmm4                     \n"
>-    "movdqa    %%xmm2,%%xmm5                   \n"
>-    "por       %%xmm4,%%xmm0                   \n"
>-    "pslldq    $0x8,%%xmm5                     \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "psrldq    $0x8,%%xmm2                     \n"
>-    "pslldq    $0x4,%%xmm3                     \n"
>-    "por       %%xmm3,%%xmm2                   \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x30,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  : "m"(kShuffleMaskARGBToRAW)  // %3
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+void ARGBToRAWRow_SSSE3(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+
>+      "movdqa    %3,%%xmm6                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "pshufb    %%xmm6,%%xmm0                   \n"
>+      "pshufb    %%xmm6,%%xmm1                   \n"
>+      "pshufb    %%xmm6,%%xmm2                   \n"
>+      "pshufb    %%xmm6,%%xmm3                   \n"
>+      "movdqa    %%xmm1,%%xmm4                   \n"
>+      "psrldq    $0x4,%%xmm1                     \n"
>+      "pslldq    $0xc,%%xmm4                     \n"
>+      "movdqa    %%xmm2,%%xmm5                   \n"
>+      "por       %%xmm4,%%xmm0                   \n"
>+      "pslldq    $0x8,%%xmm5                     \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "psrldq    $0x8,%%xmm2                     \n"
>+      "pslldq    $0x4,%%xmm3                     \n"
>+      "por       %%xmm3,%%xmm2                   \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "movdqu    %%xmm2,0x20(%1)                 \n"
>+      "lea       0x30(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),                  // %0
>+        "+r"(dst),                  // %1
>+        "+r"(width)                 // %2
>+      : "m"(kShuffleMaskARGBToRAW)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> 
>-void ARGBToRGB565Row_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm3,%%xmm3                   \n"
>-    "psrld     $0x1b,%%xmm3                    \n"
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "psrld     $0x1a,%%xmm4                    \n"
>-    "pslld     $0x5,%%xmm4                     \n"
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "pslld     $0xb,%%xmm5                     \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "pslld     $0x8,%%xmm0                     \n"
>-    "psrld     $0x3,%%xmm1                     \n"
>-    "psrld     $0x5,%%xmm2                     \n"
>-    "psrad     $0x10,%%xmm0                    \n"
>-    "pand      %%xmm3,%%xmm1                   \n"
>-    "pand      %%xmm4,%%xmm2                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "por       %%xmm2,%%xmm1                   \n"
>-    "por       %%xmm1,%%xmm0                   \n"
>-    "packssdw  %%xmm0,%%xmm0                   \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+void ARGBToRGB565Row_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm3,%%xmm3                   \n"
>+      "psrld     $0x1b,%%xmm3                    \n"
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "psrld     $0x1a,%%xmm4                    \n"
>+      "pslld     $0x5,%%xmm4                     \n"
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "pslld     $0xb,%%xmm5                     \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "pslld     $0x8,%%xmm0                     \n"
>+      "psrld     $0x3,%%xmm1                     \n"
>+      "psrld     $0x5,%%xmm2                     \n"
>+      "psrad     $0x10,%%xmm0                    \n"
>+      "pand      %%xmm3,%%xmm1                   \n"
>+      "pand      %%xmm4,%%xmm2                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "por       %%xmm2,%%xmm1                   \n"
>+      "por       %%xmm1,%%xmm0                   \n"
>+      "packssdw  %%xmm0,%%xmm0                   \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void ARGBToRGB565DitherRow_SSE2(const uint8* src,
>-                                uint8* dst,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_SSE2(const uint8_t* src,
>+                                uint8_t* dst,
>+                                const uint32_t dither4,
>                                 int width) {
>   asm volatile(
>       "movd       %3,%%xmm6                      \n"
>@@ -583,9 +590,9 @@ void ARGBToRGB565DitherRow_SSE2(const uint8* src,
> }
> 
> #ifdef HAS_ARGBTORGB565DITHERROW_AVX2
>-void ARGBToRGB565DitherRow_AVX2(const uint8* src,
>-                                uint8* dst,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_AVX2(const uint8_t* src,
>+                                uint8_t* dst,
>+                                const uint32_t dither4,
>                                 int width) {
>   asm volatile(
>       "vbroadcastss %3,%%xmm6                    \n"
>@@ -628,153 +635,335 @@ void ARGBToRGB565DitherRow_AVX2(const uint8* src,
> }
> #endif  // HAS_ARGBTORGB565DITHERROW_AVX2
> 
>-void ARGBToARGB1555Row_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "psrld     $0x1b,%%xmm4                    \n"
>-    "movdqa    %%xmm4,%%xmm5                   \n"
>-    "pslld     $0x5,%%xmm5                     \n"
>-    "movdqa    %%xmm4,%%xmm6                   \n"
>-    "pslld     $0xa,%%xmm6                     \n"
>-    "pcmpeqb   %%xmm7,%%xmm7                   \n"
>-    "pslld     $0xf,%%xmm7                     \n"
>+void ARGBToARGB1555Row_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "psrld     $0x1b,%%xmm4                    \n"
>+      "movdqa    %%xmm4,%%xmm5                   \n"
>+      "pslld     $0x5,%%xmm5                     \n"
>+      "movdqa    %%xmm4,%%xmm6                   \n"
>+      "pslld     $0xa,%%xmm6                     \n"
>+      "pcmpeqb   %%xmm7,%%xmm7                   \n"
>+      "pslld     $0xf,%%xmm7                     \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm3                   \n"
>-    "psrad     $0x10,%%xmm0                    \n"
>-    "psrld     $0x3,%%xmm1                     \n"
>-    "psrld     $0x6,%%xmm2                     \n"
>-    "psrld     $0x9,%%xmm3                     \n"
>-    "pand      %%xmm7,%%xmm0                   \n"
>-    "pand      %%xmm4,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm2                   \n"
>-    "pand      %%xmm6,%%xmm3                   \n"
>-    "por       %%xmm1,%%xmm0                   \n"
>-    "por       %%xmm3,%%xmm2                   \n"
>-    "por       %%xmm2,%%xmm0                   \n"
>-    "packssdw  %%xmm0,%%xmm0                   \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :: "memory", "cc",
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm3                   \n"
>+      "psrad     $0x10,%%xmm0                    \n"
>+      "psrld     $0x3,%%xmm1                     \n"
>+      "psrld     $0x6,%%xmm2                     \n"
>+      "psrld     $0x9,%%xmm3                     \n"
>+      "pand      %%xmm7,%%xmm0                   \n"
>+      "pand      %%xmm4,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm2                   \n"
>+      "pand      %%xmm6,%%xmm3                   \n"
>+      "por       %%xmm1,%%xmm0                   \n"
>+      "por       %%xmm3,%%xmm2                   \n"
>+      "por       %%xmm2,%%xmm0                   \n"
>+      "packssdw  %%xmm0,%%xmm0                   \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
> }
> 
>-void ARGBToARGB4444Row_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "psllw     $0xc,%%xmm4                     \n"
>-    "movdqa    %%xmm4,%%xmm3                   \n"
>-    "psrlw     $0x8,%%xmm3                     \n"
>+void ARGBToARGB4444Row_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "psllw     $0xc,%%xmm4                     \n"
>+      "movdqa    %%xmm4,%%xmm3                   \n"
>+      "psrlw     $0x8,%%xmm3                     \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pand      %%xmm3,%%xmm0                   \n"
>-    "pand      %%xmm4,%%xmm1                   \n"
>-    "psrlq     $0x4,%%xmm0                     \n"
>-    "psrlq     $0x8,%%xmm1                     \n"
>-    "por       %%xmm1,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pand      %%xmm3,%%xmm0                   \n"
>+      "pand      %%xmm4,%%xmm1                   \n"
>+      "psrlq     $0x4,%%xmm0                     \n"
>+      "psrlq     $0x8,%%xmm1                     \n"
>+      "por       %%xmm1,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4");
> }
> #endif  // HAS_RGB24TOARGBROW_SSSE3
> 
>+/*
>+
>+ARGBToAR30Row:
>+
>+Red Blue
>+With the 8 bit value in the upper bits of a short, vpmulhuw by (1024+4) will
>+produce a 10 bit value in the low 10 bits of each 16 bit value. This is whats
>+wanted for the blue channel. The red needs to be shifted 4 left, so multiply by
>+(1024+4)*16 for red.
>+
>+Alpha Green
>+Alpha and Green are already in the high bits so vpand can zero out the other
>+bits, keeping just 2 upper bits of alpha and 8 bit green. The same multiplier
>+could be used for Green - (1024+4) putting the 10 bit green in the lsb.  Alpha
>+would be a simple multiplier to shift it into position.  It wants a gap of 10
>+above the green.  Green is 10 bits, so there are 6 bits in the low short.  4
>+more are needed, so a multiplier of 4 gets the 2 bits into the upper 16 bits,
>+and then a shift of 4 is a multiply of 16, so (4*16) = 64.  Then shift the
>+result left 10 to position the A and G channels.
>+*/
>+
>+// Shuffle table for converting RAW to RGB24.  Last 8.
>+static const uvec8 kShuffleRB30 = {128u, 0u, 128u, 2u,  128u, 4u,  128u, 6u,
>+                                   128u, 8u, 128u, 10u, 128u, 12u, 128u, 14u};
>+
>+static const uvec8 kShuffleBR30 = {128u, 2u,  128u, 0u, 128u, 6u,  128u, 4u,
>+                                   128u, 10u, 128u, 8u, 128u, 14u, 128u, 12u};
>+
>+static const uint32_t kMulRB10 = 1028 * 16 * 65536 + 1028;
>+static const uint32_t kMaskRB10 = 0x3ff003ff;
>+static const uint32_t kMaskAG10 = 0xc000ff00;
>+static const uint32_t kMulAG10 = 64 * 65536 + 1028;
>+
>+void ARGBToAR30Row_SSSE3(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "movdqa     %3,%%xmm2                     \n"  // shuffler for RB
>+      "movd       %4,%%xmm3                     \n"  // multipler for RB
>+      "movd       %5,%%xmm4                     \n"  // mask for R10 B10
>+      "movd       %6,%%xmm5                     \n"  // mask for AG
>+      "movd       %7,%%xmm6                     \n"  // multipler for AG
>+      "pshufd     $0x0,%%xmm3,%%xmm3            \n"
>+      "pshufd     $0x0,%%xmm4,%%xmm4            \n"
>+      "pshufd     $0x0,%%xmm5,%%xmm5            \n"
>+      "pshufd     $0x0,%%xmm6,%%xmm6            \n"
>+      "sub        %0,%1                         \n"
>+
>+      "1:                                       \n"
>+      "movdqu     (%0),%%xmm0                   \n"  // fetch 4 ARGB pixels
>+      "movdqa     %%xmm0,%%xmm1                 \n"
>+      "pshufb     %%xmm2,%%xmm1                 \n"  // R0B0
>+      "pand       %%xmm5,%%xmm0                 \n"  // A0G0
>+      "pmulhuw    %%xmm3,%%xmm1                 \n"  // X2 R16 X4  B10
>+      "pmulhuw    %%xmm6,%%xmm0                 \n"  // X10 A2 X10 G10
>+      "pand       %%xmm4,%%xmm1                 \n"  // X2 R10 X10 B10
>+      "pslld      $10,%%xmm0                    \n"  // A2 x10 G10 x10
>+      "por        %%xmm1,%%xmm0                 \n"  // A2 R10 G10 B10
>+      "movdqu     %%xmm0,(%1,%0)                \n"  // store 4 AR30 pixels
>+      "add        $0x10,%0                      \n"
>+      "sub        $0x4,%2                       \n"
>+      "jg         1b                            \n"
>+
>+      : "+r"(src),          // %0
>+        "+r"(dst),          // %1
>+        "+r"(width)         // %2
>+      : "m"(kShuffleRB30),  // %3
>+        "m"(kMulRB10),      // %4
>+        "m"(kMaskRB10),     // %5
>+        "m"(kMaskAG10),     // %6
>+        "m"(kMulAG10)       // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
>+}
>+
>+void ABGRToAR30Row_SSSE3(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "movdqa     %3,%%xmm2                     \n"  // shuffler for RB
>+      "movd       %4,%%xmm3                     \n"  // multipler for RB
>+      "movd       %5,%%xmm4                     \n"  // mask for R10 B10
>+      "movd       %6,%%xmm5                     \n"  // mask for AG
>+      "movd       %7,%%xmm6                     \n"  // multipler for AG
>+      "pshufd     $0x0,%%xmm3,%%xmm3            \n"
>+      "pshufd     $0x0,%%xmm4,%%xmm4            \n"
>+      "pshufd     $0x0,%%xmm5,%%xmm5            \n"
>+      "pshufd     $0x0,%%xmm6,%%xmm6            \n"
>+      "sub        %0,%1                         \n"
>+
>+      "1:                                       \n"
>+      "movdqu     (%0),%%xmm0                   \n"  // fetch 4 ABGR pixels
>+      "movdqa     %%xmm0,%%xmm1                 \n"
>+      "pshufb     %%xmm2,%%xmm1                 \n"  // R0B0
>+      "pand       %%xmm5,%%xmm0                 \n"  // A0G0
>+      "pmulhuw    %%xmm3,%%xmm1                 \n"  // X2 R16 X4  B10
>+      "pmulhuw    %%xmm6,%%xmm0                 \n"  // X10 A2 X10 G10
>+      "pand       %%xmm4,%%xmm1                 \n"  // X2 R10 X10 B10
>+      "pslld      $10,%%xmm0                    \n"  // A2 x10 G10 x10
>+      "por        %%xmm1,%%xmm0                 \n"  // A2 R10 G10 B10
>+      "movdqu     %%xmm0,(%1,%0)                \n"  // store 4 AR30 pixels
>+      "add        $0x10,%0                      \n"
>+      "sub        $0x4,%2                       \n"
>+      "jg         1b                            \n"
>+
>+      : "+r"(src),          // %0
>+        "+r"(dst),          // %1
>+        "+r"(width)         // %2
>+      : "m"(kShuffleBR30),  // %3  reversed shuffler
>+        "m"(kMulRB10),      // %4
>+        "m"(kMaskRB10),     // %5
>+        "m"(kMaskAG10),     // %6
>+        "m"(kMulAG10)       // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
>+}
>+
>+#ifdef HAS_ARGBTOAR30ROW_AVX2
>+void ARGBToAR30Row_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "vbroadcastf128 %3,%%ymm2                  \n"  // shuffler for RB
>+      "vbroadcastss  %4,%%ymm3                   \n"  // multipler for RB
>+      "vbroadcastss  %5,%%ymm4                   \n"  // mask for R10 B10
>+      "vbroadcastss  %6,%%ymm5                   \n"  // mask for AG
>+      "vbroadcastss  %7,%%ymm6                   \n"  // multipler for AG
>+      "sub        %0,%1                          \n"
>+
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"  // fetch 8 ARGB pixels
>+      "vpshufb    %%ymm2,%%ymm0,%%ymm1           \n"  // R0B0
>+      "vpand      %%ymm5,%%ymm0,%%ymm0           \n"  // A0G0
>+      "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"  // X2 R16 X4  B10
>+      "vpmulhuw   %%ymm6,%%ymm0,%%ymm0           \n"  // X10 A2 X10 G10
>+      "vpand      %%ymm4,%%ymm1,%%ymm1           \n"  // X2 R10 X10 B10
>+      "vpslld     $10,%%ymm0,%%ymm0              \n"  // A2 x10 G10 x10
>+      "vpor       %%ymm1,%%ymm0,%%ymm0           \n"  // A2 R10 G10 B10
>+      "vmovdqu    %%ymm0,(%1,%0)                 \n"  // store 8 AR30 pixels
>+      "add        $0x20,%0                       \n"
>+      "sub        $0x8,%2                        \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+
>+      : "+r"(src),          // %0
>+        "+r"(dst),          // %1
>+        "+r"(width)         // %2
>+      : "m"(kShuffleRB30),  // %3
>+        "m"(kMulRB10),      // %4
>+        "m"(kMaskRB10),     // %5
>+        "m"(kMaskAG10),     // %6
>+        "m"(kMulAG10)       // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
>+}
>+#endif
>+
>+#ifdef HAS_ABGRTOAR30ROW_AVX2
>+void ABGRToAR30Row_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "vbroadcastf128 %3,%%ymm2                  \n"  // shuffler for RB
>+      "vbroadcastss  %4,%%ymm3                   \n"  // multipler for RB
>+      "vbroadcastss  %5,%%ymm4                   \n"  // mask for R10 B10
>+      "vbroadcastss  %6,%%ymm5                   \n"  // mask for AG
>+      "vbroadcastss  %7,%%ymm6                   \n"  // multipler for AG
>+      "sub        %0,%1                          \n"
>+
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"  // fetch 8 ABGR pixels
>+      "vpshufb    %%ymm2,%%ymm0,%%ymm1           \n"  // R0B0
>+      "vpand      %%ymm5,%%ymm0,%%ymm0           \n"  // A0G0
>+      "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"  // X2 R16 X4  B10
>+      "vpmulhuw   %%ymm6,%%ymm0,%%ymm0           \n"  // X10 A2 X10 G10
>+      "vpand      %%ymm4,%%ymm1,%%ymm1           \n"  // X2 R10 X10 B10
>+      "vpslld     $10,%%ymm0,%%ymm0              \n"  // A2 x10 G10 x10
>+      "vpor       %%ymm1,%%ymm0,%%ymm0           \n"  // A2 R10 G10 B10
>+      "vmovdqu    %%ymm0,(%1,%0)                 \n"  // store 8 AR30 pixels
>+      "add        $0x20,%0                       \n"
>+      "sub        $0x8,%2                        \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+
>+      : "+r"(src),          // %0
>+        "+r"(dst),          // %1
>+        "+r"(width)         // %2
>+      : "m"(kShuffleBR30),  // %3  reversed shuffler
>+        "m"(kMulRB10),      // %4
>+        "m"(kMaskRB10),     // %5
>+        "m"(kMaskAG10),     // %6
>+        "m"(kMulAG10)       // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
>+}
>+#endif
>+
> #ifdef HAS_ARGBTOYROW_SSSE3
> // Convert 16 ARGB pixels (64 bytes) to 16 Y values.
>-void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int width) {
>-  asm volatile (
>-    "movdqa    %3,%%xmm4                       \n"
>-    "movdqa    %4,%%xmm5                       \n"
>+void ARGBToYRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "movdqa    %3,%%xmm4                       \n"
>+      "movdqa    %4,%%xmm5                       \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm3                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm3,%%xmm2                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kARGBToY),   // %3
>-    "m"(kAddY16)     // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm3                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm3,%%xmm2                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      : "m"(kARGBToY),   // %3
>+        "m"(kAddY16)     // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBTOYROW_SSSE3
> 
> #ifdef HAS_ARGBTOYJROW_SSSE3
> // Convert 16 ARGB pixels (64 bytes) to 16 YJ values.
> // Same as ARGBToYRow but different coefficients, no add 16, but do rounding.
>-void ARGBToYJRow_SSSE3(const uint8* src_argb, uint8* dst_y, int width) {
>-  asm volatile (
>-    "movdqa    %3,%%xmm4                       \n"
>-    "movdqa    %4,%%xmm5                       \n"
>+void ARGBToYJRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "movdqa    %3,%%xmm4                       \n"
>+      "movdqa    %4,%%xmm5                       \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm3                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm3,%%xmm2                   \n"
>-    "paddw     %%xmm5,%%xmm0                   \n"
>-    "paddw     %%xmm5,%%xmm2                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kARGBToYJ),  // %3
>-    "m"(kAddYJ64)    // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm3                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm3,%%xmm2                   \n"
>+      "paddw     %%xmm5,%%xmm0                   \n"
>+      "paddw     %%xmm5,%%xmm2                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      : "m"(kARGBToYJ),  // %3
>+        "m"(kAddYJ64)    // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBTOYJROW_SSSE3
> 
>@@ -783,153 +972,149 @@ void ARGBToYJRow_SSSE3(const uint8* src_argb, uint8* dst_y, int width) {
> static const lvec32 kPermdARGBToY_AVX = {0, 4, 1, 5, 2, 6, 3, 7};
> 
> // Convert 32 ARGB pixels (128 bytes) to 32 Y values.
>-void ARGBToYRow_AVX2(const uint8* src_argb, uint8* dst_y, int width) {
>-  asm volatile (
>-    "vbroadcastf128 %3,%%ymm4                  \n"
>-    "vbroadcastf128 %4,%%ymm5                  \n"
>-    "vmovdqu    %5,%%ymm6                      \n"
>+void ARGBToYRow_AVX2(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "vbroadcastf128 %3,%%ymm4                  \n"
>+      "vbroadcastf128 %4,%%ymm5                  \n"
>+      "vmovdqu    %5,%%ymm6                      \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "vmovdqu    " MEMACCESS2(0x40,0) ",%%ymm2  \n"
>-    "vmovdqu    " MEMACCESS2(0x60,0) ",%%ymm3  \n"
>-    "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "lea       " MEMLEA(0x80,0) ",%0           \n"
>-    "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"  // mutates.
>-    "vphaddw    %%ymm3,%%ymm2,%%ymm2           \n"
>-    "vpsrlw     $0x7,%%ymm0,%%ymm0             \n"
>-    "vpsrlw     $0x7,%%ymm2,%%ymm2             \n"
>-    "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>-    "vpermd     %%ymm0,%%ymm6,%%ymm0           \n"  // unmutate.
>-    "vpaddb     %%ymm5,%%ymm0,%%ymm0           \n"  // add 16 for Y
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kARGBToY),   // %3
>-    "m"(kAddY16),    // %4
>-    "m"(kPermdARGBToY_AVX)  // %5
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x40(%0),%%ymm2                \n"
>+      "vmovdqu    0x60(%0),%%ymm3                \n"
>+      "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "lea       0x80(%0),%0                     \n"
>+      "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"  // mutates.
>+      "vphaddw    %%ymm3,%%ymm2,%%ymm2           \n"
>+      "vpsrlw     $0x7,%%ymm0,%%ymm0             \n"
>+      "vpsrlw     $0x7,%%ymm2,%%ymm2             \n"
>+      "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>+      "vpermd     %%ymm0,%%ymm6,%%ymm0           \n"  // unmutate.
>+      "vpaddb     %%ymm5,%%ymm0,%%ymm0           \n"  // add 16 for Y
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),         // %0
>+        "+r"(dst_y),            // %1
>+        "+r"(width)             // %2
>+      : "m"(kARGBToY),          // %3
>+        "m"(kAddY16),           // %4
>+        "m"(kPermdARGBToY_AVX)  // %5
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_ARGBTOYROW_AVX2
> 
> #ifdef HAS_ARGBTOYJROW_AVX2
> // Convert 32 ARGB pixels (128 bytes) to 32 Y values.
>-void ARGBToYJRow_AVX2(const uint8* src_argb, uint8* dst_y, int width) {
>-  asm volatile (
>-    "vbroadcastf128 %3,%%ymm4                  \n"
>-    "vbroadcastf128 %4,%%ymm5                  \n"
>-    "vmovdqu    %5,%%ymm6                      \n"
>+void ARGBToYJRow_AVX2(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "vbroadcastf128 %3,%%ymm4                  \n"
>+      "vbroadcastf128 %4,%%ymm5                  \n"
>+      "vmovdqu    %5,%%ymm6                      \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "vmovdqu    " MEMACCESS2(0x40,0) ",%%ymm2  \n"
>-    "vmovdqu    " MEMACCESS2(0x60,0) ",%%ymm3  \n"
>-    "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "lea       " MEMLEA(0x80,0) ",%0           \n"
>-    "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"  // mutates.
>-    "vphaddw    %%ymm3,%%ymm2,%%ymm2           \n"
>-    "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"  // Add .5 for rounding.
>-    "vpaddw     %%ymm5,%%ymm2,%%ymm2           \n"
>-    "vpsrlw     $0x7,%%ymm0,%%ymm0             \n"
>-    "vpsrlw     $0x7,%%ymm2,%%ymm2             \n"
>-    "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>-    "vpermd     %%ymm0,%%ymm6,%%ymm0           \n"  // unmutate.
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kARGBToYJ),   // %3
>-    "m"(kAddYJ64),    // %4
>-    "m"(kPermdARGBToY_AVX)  // %5
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x40(%0),%%ymm2                \n"
>+      "vmovdqu    0x60(%0),%%ymm3                \n"
>+      "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "lea       0x80(%0),%0                     \n"
>+      "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"  // mutates.
>+      "vphaddw    %%ymm3,%%ymm2,%%ymm2           \n"
>+      "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"  // Add .5 for rounding.
>+      "vpaddw     %%ymm5,%%ymm2,%%ymm2           \n"
>+      "vpsrlw     $0x7,%%ymm0,%%ymm0             \n"
>+      "vpsrlw     $0x7,%%ymm2,%%ymm2             \n"
>+      "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>+      "vpermd     %%ymm0,%%ymm6,%%ymm0           \n"  // unmutate.
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),         // %0
>+        "+r"(dst_y),            // %1
>+        "+r"(width)             // %2
>+      : "m"(kARGBToYJ),         // %3
>+        "m"(kAddYJ64),          // %4
>+        "m"(kPermdARGBToY_AVX)  // %5
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_ARGBTOYJROW_AVX2
> 
> #ifdef HAS_ARGBTOUVROW_SSSE3
>-void ARGBToUVRow_SSSE3(const uint8* src_argb0,
>+void ARGBToUVRow_SSSE3(const uint8_t* src_argb0,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  asm volatile (
>-    "movdqa    %5,%%xmm3                       \n"
>-    "movdqa    %6,%%xmm4                       \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %5,%%xmm3                       \n"
>+      "movdqa    %6,%%xmm4                       \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm7)            //  movdqu (%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm7)            //  movdqu 0x10(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    MEMOPREG(movdqu,0x20,0,4,1,xmm7)            //  movdqu 0x20(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x30,0,4,1,xmm7)            //  movdqu 0x30(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm6,%%xmm2             \n"
>-    "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm2,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm1                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm1                     \n"
>-    "packsswb  %%xmm1,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movlps    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhps,xmm0,0x00,1,2,1)           //  movhps    %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_argb)), // %4
>-    "m"(kARGBToV),  // %5
>-    "m"(kARGBToU),  // %6
>-    "m"(kAddUV128)  // %7
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x20(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "movdqu    0x30(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm6,%%xmm2             \n"
>+      "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm2,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm1                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm1                     \n"
>+      "packsswb  %%xmm1,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movlps    %%xmm0,(%1)                     \n"
>+      "movhps    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_argb)),  // %4
>+        "m"(kARGBToV),                     // %5
>+        "m"(kARGBToU),                     // %6
>+        "m"(kAddUV128)                     // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6", "xmm7");
> }
> #endif  // HAS_ARGBTOUVROW_SSSE3
> 
>@@ -938,643 +1123,644 @@ void ARGBToUVRow_SSSE3(const uint8* src_argb0,
> static const lvec8 kShufARGBToUV_AVX = {
>     0, 1, 8, 9, 2, 3, 10, 11, 4, 5, 12, 13, 6, 7, 14, 15,
>     0, 1, 8, 9, 2, 3, 10, 11, 4, 5, 12, 13, 6, 7, 14, 15};
>-void ARGBToUVRow_AVX2(const uint8* src_argb0,
>+void ARGBToUVRow_AVX2(const uint8_t* src_argb0,
>                       int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  asm volatile (
>-    "vbroadcastf128 %5,%%ymm5                  \n"
>-    "vbroadcastf128 %6,%%ymm6                  \n"
>-    "vbroadcastf128 %7,%%ymm7                  \n"
>-    "sub        %1,%2                          \n"
>+  asm volatile(
>+      "vbroadcastf128 %5,%%ymm5                  \n"
>+      "vbroadcastf128 %6,%%ymm6                  \n"
>+      "vbroadcastf128 %7,%%ymm7                  \n"
>+      "sub        %1,%2                          \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "vmovdqu    " MEMACCESS2(0x40,0) ",%%ymm2  \n"
>-    "vmovdqu    " MEMACCESS2(0x60,0) ",%%ymm3  \n"
>-    VMEMOPREG(vpavgb,0x00,0,4,1,ymm0,ymm0)     // vpavgb (%0,%4,1),%%ymm0,%%ymm0
>-    VMEMOPREG(vpavgb,0x20,0,4,1,ymm1,ymm1)
>-    VMEMOPREG(vpavgb,0x40,0,4,1,ymm2,ymm2)
>-    VMEMOPREG(vpavgb,0x60,0,4,1,ymm3,ymm3)
>-    "lea        " MEMLEA(0x80,0) ",%0          \n"
>-    "vshufps    $0x88,%%ymm1,%%ymm0,%%ymm4     \n"
>-    "vshufps    $0xdd,%%ymm1,%%ymm0,%%ymm0     \n"
>-    "vpavgb     %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vshufps    $0x88,%%ymm3,%%ymm2,%%ymm4     \n"
>-    "vshufps    $0xdd,%%ymm3,%%ymm2,%%ymm2     \n"
>-    "vpavgb     %%ymm4,%%ymm2,%%ymm2           \n"
>-
>-    "vpmaddubsw %%ymm7,%%ymm0,%%ymm1           \n"
>-    "vpmaddubsw %%ymm7,%%ymm2,%%ymm3           \n"
>-    "vpmaddubsw %%ymm6,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm6,%%ymm2,%%ymm2           \n"
>-    "vphaddw    %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vphaddw    %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpsraw     $0x8,%%ymm1,%%ymm1             \n"
>-    "vpsraw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpacksswb  %%ymm0,%%ymm1,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpshufb    %8,%%ymm0,%%ymm0               \n"
>-    "vpaddb     %%ymm5,%%ymm0,%%ymm0           \n"
>-
>-    "vextractf128 $0x0,%%ymm0," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,1,ymm0,0x0,1,2,1) // vextractf128 $1,%%ymm0,(%1,%2,1)
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-    "sub        $0x20,%3                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_argb)), // %4
>-    "m"(kAddUV128),  // %5
>-    "m"(kARGBToV),   // %6
>-    "m"(kARGBToU),   // %7
>-    "m"(kShufARGBToUV_AVX)  // %8
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>-}
>-#endif  // HAS_ARGBTOUVROW_AVX2
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x40(%0),%%ymm2                \n"
>+      "vmovdqu    0x60(%0),%%ymm3                \n"
>+      "vpavgb    0x00(%0,%4,1),%%ymm0,%%ymm0     \n"
>+      "vpavgb    0x20(%0,%4,1),%%ymm1,%%ymm1     \n"
>+      "vpavgb    0x40(%0,%4,1),%%ymm2,%%ymm2     \n"
>+      "vpavgb    0x60(%0,%4,1),%%ymm3,%%ymm3     \n"
>+      "lea        0x80(%0),%0                    \n"
>+      "vshufps    $0x88,%%ymm1,%%ymm0,%%ymm4     \n"
>+      "vshufps    $0xdd,%%ymm1,%%ymm0,%%ymm0     \n"
>+      "vpavgb     %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vshufps    $0x88,%%ymm3,%%ymm2,%%ymm4     \n"
>+      "vshufps    $0xdd,%%ymm3,%%ymm2,%%ymm2     \n"
>+      "vpavgb     %%ymm4,%%ymm2,%%ymm2           \n"
>+
>+      "vpmaddubsw %%ymm7,%%ymm0,%%ymm1           \n"
>+      "vpmaddubsw %%ymm7,%%ymm2,%%ymm3           \n"
>+      "vpmaddubsw %%ymm6,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm6,%%ymm2,%%ymm2           \n"
>+      "vphaddw    %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vphaddw    %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpsraw     $0x8,%%ymm1,%%ymm1             \n"
>+      "vpsraw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpacksswb  %%ymm0,%%ymm1,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpshufb    %8,%%ymm0,%%ymm0               \n"
>+      "vpaddb     %%ymm5,%%ymm0,%%ymm0           \n"
> 
>-#ifdef HAS_ARGBTOUVJROW_AVX2
>-void ARGBToUVJRow_AVX2(const uint8* src_argb0,
>-                       int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+      "vextractf128 $0x0,%%ymm0,(%1)             \n"
>+      "vextractf128 $0x1,%%ymm0,0x0(%1,%2,1)     \n"
>+      "lea        0x10(%1),%1                    \n"
>+      "sub        $0x20,%3                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_argb)),  // %4
>+        "m"(kAddUV128),                    // %5
>+        "m"(kARGBToV),                     // %6
>+        "m"(kARGBToU),                     // %7
>+        "m"(kShufARGBToUV_AVX)             // %8
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
>+}
>+#endif  // HAS_ARGBTOUVROW_AVX2
>+
>+#ifdef HAS_ARGBTOUVJROW_AVX2
>+void ARGBToUVJRow_AVX2(const uint8_t* src_argb0,
>+                       int src_stride_argb,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  asm volatile (
>-    "vbroadcastf128 %5,%%ymm5                  \n"
>-    "vbroadcastf128 %6,%%ymm6                  \n"
>-    "vbroadcastf128 %7,%%ymm7                  \n"
>-    "sub        %1,%2                          \n"
>+  asm volatile(
>+      "vbroadcastf128 %5,%%ymm5                  \n"
>+      "vbroadcastf128 %6,%%ymm6                  \n"
>+      "vbroadcastf128 %7,%%ymm7                  \n"
>+      "sub        %1,%2                          \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "vmovdqu    " MEMACCESS2(0x40,0) ",%%ymm2  \n"
>-    "vmovdqu    " MEMACCESS2(0x60,0) ",%%ymm3  \n"
>-    VMEMOPREG(vpavgb,0x00,0,4,1,ymm0,ymm0)     // vpavgb (%0,%4,1),%%ymm0,%%ymm0
>-    VMEMOPREG(vpavgb,0x20,0,4,1,ymm1,ymm1)
>-    VMEMOPREG(vpavgb,0x40,0,4,1,ymm2,ymm2)
>-    VMEMOPREG(vpavgb,0x60,0,4,1,ymm3,ymm3)
>-    "lea       " MEMLEA(0x80,0) ",%0           \n"
>-    "vshufps    $0x88,%%ymm1,%%ymm0,%%ymm4     \n"
>-    "vshufps    $0xdd,%%ymm1,%%ymm0,%%ymm0     \n"
>-    "vpavgb     %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vshufps    $0x88,%%ymm3,%%ymm2,%%ymm4     \n"
>-    "vshufps    $0xdd,%%ymm3,%%ymm2,%%ymm2     \n"
>-    "vpavgb     %%ymm4,%%ymm2,%%ymm2           \n"
>-
>-    "vpmaddubsw %%ymm7,%%ymm0,%%ymm1           \n"
>-    "vpmaddubsw %%ymm7,%%ymm2,%%ymm3           \n"
>-    "vpmaddubsw %%ymm6,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm6,%%ymm2,%%ymm2           \n"
>-    "vphaddw    %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vphaddw    %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vpsraw     $0x8,%%ymm1,%%ymm1             \n"
>-    "vpsraw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpacksswb  %%ymm0,%%ymm1,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpshufb    %8,%%ymm0,%%ymm0               \n"
>-
>-    "vextractf128 $0x0,%%ymm0," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,1,ymm0,0x0,1,2,1) // vextractf128 $1,%%ymm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_argb)), // %4
>-    "m"(kAddUVJ128),  // %5
>-    "m"(kARGBToVJ),  // %6
>-    "m"(kARGBToUJ),  // %7
>-    "m"(kShufARGBToUV_AVX)  // %8
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x40(%0),%%ymm2                \n"
>+      "vmovdqu    0x60(%0),%%ymm3                \n"
>+      "vpavgb    0x00(%0,%4,1),%%ymm0,%%ymm0     \n"
>+      "vpavgb    0x20(%0,%4,1),%%ymm1,%%ymm1     \n"
>+      "vpavgb    0x40(%0,%4,1),%%ymm2,%%ymm2     \n"
>+      "vpavgb    0x60(%0,%4,1),%%ymm3,%%ymm3     \n"
>+      "lea       0x80(%0),%0                     \n"
>+      "vshufps    $0x88,%%ymm1,%%ymm0,%%ymm4     \n"
>+      "vshufps    $0xdd,%%ymm1,%%ymm0,%%ymm0     \n"
>+      "vpavgb     %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vshufps    $0x88,%%ymm3,%%ymm2,%%ymm4     \n"
>+      "vshufps    $0xdd,%%ymm3,%%ymm2,%%ymm2     \n"
>+      "vpavgb     %%ymm4,%%ymm2,%%ymm2           \n"
>+
>+      "vpmaddubsw %%ymm7,%%ymm0,%%ymm1           \n"
>+      "vpmaddubsw %%ymm7,%%ymm2,%%ymm3           \n"
>+      "vpmaddubsw %%ymm6,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm6,%%ymm2,%%ymm2           \n"
>+      "vphaddw    %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vphaddw    %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vpsraw     $0x8,%%ymm1,%%ymm1             \n"
>+      "vpsraw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpacksswb  %%ymm0,%%ymm1,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpshufb    %8,%%ymm0,%%ymm0               \n"
>+
>+      "vextractf128 $0x0,%%ymm0,(%1)             \n"
>+      "vextractf128 $0x1,%%ymm0,0x0(%1,%2,1)     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_argb)),  // %4
>+        "m"(kAddUVJ128),                   // %5
>+        "m"(kARGBToVJ),                    // %6
>+        "m"(kARGBToUJ),                    // %7
>+        "m"(kShufARGBToUV_AVX)             // %8
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBTOUVJROW_AVX2
> 
> #ifdef HAS_ARGBTOUVJROW_SSSE3
>-void ARGBToUVJRow_SSSE3(const uint8* src_argb0,
>+void ARGBToUVJRow_SSSE3(const uint8_t* src_argb0,
>                         int src_stride_argb,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width) {
>-  asm volatile (
>-    "movdqa    %5,%%xmm3                       \n"
>-    "movdqa    %6,%%xmm4                       \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %5,%%xmm3                       \n"
>+      "movdqa    %6,%%xmm4                       \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm7)            //  movdqu (%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm7)            //  movdqu 0x10(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    MEMOPREG(movdqu,0x20,0,4,1,xmm7)            //  movdqu 0x20(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x30,0,4,1,xmm7)            //  movdqu 0x30(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm6,%%xmm2             \n"
>-    "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm2,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm1                   \n"
>-    "paddw     %%xmm5,%%xmm0                   \n"
>-    "paddw     %%xmm5,%%xmm1                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm1                     \n"
>-    "packsswb  %%xmm1,%%xmm0                   \n"
>-    "movlps    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhps,xmm0,0x00,1,2,1)           //  movhps  %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_argb)), // %4
>-    "m"(kARGBToVJ),  // %5
>-    "m"(kARGBToUJ),  // %6
>-    "m"(kAddUVJ128)  // %7
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x20(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "movdqu    0x30(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm6,%%xmm2             \n"
>+      "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm2,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm1                   \n"
>+      "paddw     %%xmm5,%%xmm0                   \n"
>+      "paddw     %%xmm5,%%xmm1                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm1                     \n"
>+      "packsswb  %%xmm1,%%xmm0                   \n"
>+      "movlps    %%xmm0,(%1)                     \n"
>+      "movhps    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_argb)),  // %4
>+        "m"(kARGBToVJ),                    // %5
>+        "m"(kARGBToUJ),                    // %6
>+        "m"(kAddUVJ128)                    // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6", "xmm7");
> }
> #endif  // HAS_ARGBTOUVJROW_SSSE3
> 
> #ifdef HAS_ARGBTOUV444ROW_SSSE3
>-void ARGBToUV444Row_SSSE3(const uint8* src_argb,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+void ARGBToUV444Row_SSSE3(const uint8_t* src_argb,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width) {
>-  asm volatile (
>-    "movdqa    %4,%%xmm3                       \n"
>-    "movdqa    %5,%%xmm4                       \n"
>-    "movdqa    %6,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %4,%%xmm3                       \n"
>+      "movdqa    %5,%%xmm4                       \n"
>+      "movdqa    %6,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm6                   \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm2                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm2                     \n"
>-    "packsswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    "pmaddubsw %%xmm3,%%xmm0                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm2                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm2                     \n"
>-    "packsswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    MEMOPMEM(movdqu,xmm0,0x00,1,2,1)           //  movdqu  %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),        // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "m"(kARGBToV),  // %4
>-    "m"(kARGBToU),  // %5
>-    "m"(kAddUV128)  // %6
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm6                   \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm2                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm2                     \n"
>+      "packsswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "pmaddubsw %%xmm3,%%xmm0                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm2                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm2                     \n"
>+      "packsswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqu    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_u),     // %1
>+        "+r"(dst_v),     // %2
>+        "+rm"(width)     // %3
>+      : "m"(kARGBToV),   // %4
>+        "m"(kARGBToU),   // %5
>+        "m"(kAddUV128)   // %6
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6");
> }
> #endif  // HAS_ARGBTOUV444ROW_SSSE3
> 
>-void BGRAToYRow_SSSE3(const uint8* src_bgra, uint8* dst_y, int width) {
>-  asm volatile (
>-    "movdqa    %4,%%xmm5                       \n"
>-    "movdqa    %3,%%xmm4                       \n"
>+void BGRAToYRow_SSSE3(const uint8_t* src_bgra, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "movdqa    %4,%%xmm5                       \n"
>+      "movdqa    %3,%%xmm4                       \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm3                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm3,%%xmm2                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_bgra),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kBGRAToY),   // %3
>-    "m"(kAddY16)     // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm3                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm3,%%xmm2                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_bgra),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      : "m"(kBGRAToY),   // %3
>+        "m"(kAddY16)     // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void BGRAToUVRow_SSSE3(const uint8* src_bgra0,
>+void BGRAToUVRow_SSSE3(const uint8_t* src_bgra0,
>                        int src_stride_bgra,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  asm volatile (
>-    "movdqa    %5,%%xmm3                       \n"
>-    "movdqa    %6,%%xmm4                       \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %5,%%xmm3                       \n"
>+      "movdqa    %6,%%xmm4                       \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm7)            //  movdqu (%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm7)            //  movdqu 0x10(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    MEMOPREG(movdqu,0x20,0,4,1,xmm7)            //  movdqu 0x20(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x30,0,4,1,xmm7)            //  movdqu 0x30(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm6,%%xmm2             \n"
>-    "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm2,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm1                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm1                     \n"
>-    "packsswb  %%xmm1,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movlps    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhps,xmm0,0x00,1,2,1)           //  movhps  %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_bgra0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_bgra)), // %4
>-    "m"(kBGRAToV),  // %5
>-    "m"(kBGRAToU),  // %6
>-    "m"(kAddUV128)  // %7
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x20(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "movdqu    0x30(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm6,%%xmm2             \n"
>+      "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm2,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm1                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm1                     \n"
>+      "packsswb  %%xmm1,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movlps    %%xmm0,(%1)                     \n"
>+      "movhps    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_bgra0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_bgra)),  // %4
>+        "m"(kBGRAToV),                     // %5
>+        "m"(kBGRAToU),                     // %6
>+        "m"(kAddUV128)                     // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6", "xmm7");
> }
> 
>-void ABGRToYRow_SSSE3(const uint8* src_abgr, uint8* dst_y, int width) {
>-  asm volatile (
>-    "movdqa    %4,%%xmm5                       \n"
>-    "movdqa    %3,%%xmm4                       \n"
>+void ABGRToYRow_SSSE3(const uint8_t* src_abgr, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "movdqa    %4,%%xmm5                       \n"
>+      "movdqa    %3,%%xmm4                       \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm3                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm3,%%xmm2                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_abgr),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kABGRToY),   // %3
>-    "m"(kAddY16)     // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm3                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm3,%%xmm2                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_abgr),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      : "m"(kABGRToY),   // %3
>+        "m"(kAddY16)     // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void RGBAToYRow_SSSE3(const uint8* src_rgba, uint8* dst_y, int width) {
>-  asm volatile (
>-    "movdqa    %4,%%xmm5                       \n"
>-    "movdqa    %3,%%xmm4                       \n"
>+void RGBAToYRow_SSSE3(const uint8_t* src_rgba, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "movdqa    %4,%%xmm5                       \n"
>+      "movdqa    %3,%%xmm4                       \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm4,%%xmm3                   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "phaddw    %%xmm3,%%xmm2                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_rgba),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  : "m"(kRGBAToY),   // %3
>-    "m"(kAddY16)     // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm4,%%xmm3                   \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "phaddw    %%xmm3,%%xmm2                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_rgba),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      : "m"(kRGBAToY),   // %3
>+        "m"(kAddY16)     // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void ABGRToUVRow_SSSE3(const uint8* src_abgr0,
>+void ABGRToUVRow_SSSE3(const uint8_t* src_abgr0,
>                        int src_stride_abgr,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  asm volatile (
>-    "movdqa    %5,%%xmm3                       \n"
>-    "movdqa    %6,%%xmm4                       \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %5,%%xmm3                       \n"
>+      "movdqa    %6,%%xmm4                       \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm7)            //  movdqu (%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm7)            //  movdqu 0x10(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    MEMOPREG(movdqu,0x20,0,4,1,xmm7)            //  movdqu 0x20(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x30,0,4,1,xmm7)            //  movdqu 0x30(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm6,%%xmm2             \n"
>-    "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm2,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm1                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm1                     \n"
>-    "packsswb  %%xmm1,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movlps    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhps,xmm0,0x00,1,2,1)           //  movhps  %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_abgr0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_abgr)), // %4
>-    "m"(kABGRToV),  // %5
>-    "m"(kABGRToU),  // %6
>-    "m"(kAddUV128)  // %7
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x20(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "movdqu    0x30(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm6,%%xmm2             \n"
>+      "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm2,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm1                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm1                     \n"
>+      "packsswb  %%xmm1,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movlps    %%xmm0,(%1)                     \n"
>+      "movhps    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_abgr0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_abgr)),  // %4
>+        "m"(kABGRToV),                     // %5
>+        "m"(kABGRToU),                     // %6
>+        "m"(kAddUV128)                     // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6", "xmm7");
> }
> 
>-void RGBAToUVRow_SSSE3(const uint8* src_rgba0,
>+void RGBAToUVRow_SSSE3(const uint8_t* src_rgba0,
>                        int src_stride_rgba,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  asm volatile (
>-    "movdqa    %5,%%xmm3                       \n"
>-    "movdqa    %6,%%xmm4                       \n"
>-    "movdqa    %7,%%xmm5                       \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %5,%%xmm3                       \n"
>+      "movdqa    %6,%%xmm4                       \n"
>+      "movdqa    %7,%%xmm5                       \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm7)            //  movdqu (%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm7)            //  movdqu 0x10(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    MEMOPREG(movdqu,0x20,0,4,1,xmm7)            //  movdqu 0x20(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x30,0,4,1,xmm7)            //  movdqu 0x30(%0,%4,1),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm7                   \n"
>-    "shufps    $0x88,%%xmm6,%%xmm2             \n"
>-    "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>-    "pavgb     %%xmm7,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm2                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "phaddw    %%xmm2,%%xmm0                   \n"
>-    "phaddw    %%xmm6,%%xmm1                   \n"
>-    "psraw     $0x8,%%xmm0                     \n"
>-    "psraw     $0x8,%%xmm1                     \n"
>-    "packsswb  %%xmm1,%%xmm0                   \n"
>-    "paddb     %%xmm5,%%xmm0                   \n"
>-    "movlps    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhps,xmm0,0x00,1,2,1)           //  movhps  %%xmm0,(%1,%2,1)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_rgba0),       // %0
>-    "+r"(dst_u),           // %1
>-    "+r"(dst_v),           // %2
>-    "+rm"(width)           // %3
>-  : "r"((intptr_t)(src_stride_rgba)), // %4
>-    "m"(kRGBAToV),  // %5
>-    "m"(kRGBAToU),  // %6
>-    "m"(kAddUV128)  // %7
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm6", "xmm7"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x20(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqu    0x30(%0),%%xmm6                 \n"
>+      "movdqu    0x30(%0,%4,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+
>+      "lea       0x40(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm7                   \n"
>+      "shufps    $0x88,%%xmm6,%%xmm2             \n"
>+      "shufps    $0xdd,%%xmm6,%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm2                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "phaddw    %%xmm2,%%xmm0                   \n"
>+      "phaddw    %%xmm6,%%xmm1                   \n"
>+      "psraw     $0x8,%%xmm0                     \n"
>+      "psraw     $0x8,%%xmm1                     \n"
>+      "packsswb  %%xmm1,%%xmm0                   \n"
>+      "paddb     %%xmm5,%%xmm0                   \n"
>+      "movlps    %%xmm0,(%1)                     \n"
>+      "movhps    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_rgba0),                   // %0
>+        "+r"(dst_u),                       // %1
>+        "+r"(dst_v),                       // %2
>+        "+rm"(width)                       // %3
>+      : "r"((intptr_t)(src_stride_rgba)),  // %4
>+        "m"(kRGBAToV),                     // %5
>+        "m"(kRGBAToU),                     // %6
>+        "m"(kAddUV128)                     // %7
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm6", "xmm7");
> }
> 
> #if defined(HAS_I422TOARGBROW_SSSE3) || defined(HAS_I422TOARGBROW_AVX2)
> 
> // Read 8 UV from 444
>-#define READYUV444 \
>-  "movq       " MEMACCESS([u_buf]) ",%%xmm0                     \n"            \
>-    MEMOPREG(movq, 0x00, [u_buf], [v_buf], 1, xmm1)                            \
>-    "lea        " MEMLEA(0x8, [u_buf]) ",%[u_buf]               \n"            \
>-    "punpcklbw  %%xmm1,%%xmm0                                   \n"            \
>-    "movq       " MEMACCESS([y_buf]) ",%%xmm4                   \n"            \
>-    "punpcklbw  %%xmm4,%%xmm4                                   \n"            \
>-    "lea        " MEMLEA(0x8, [y_buf]) ",%[y_buf]               \n"
>+#define READYUV444                                                \
>+  "movq       (%[u_buf]),%%xmm0                               \n" \
>+  "movq       0x00(%[u_buf],%[v_buf],1),%%xmm1                \n" \
>+  "lea        0x8(%[u_buf]),%[u_buf]                          \n" \
>+  "punpcklbw  %%xmm1,%%xmm0                                   \n" \
>+  "movq       (%[y_buf]),%%xmm4                               \n" \
>+  "punpcklbw  %%xmm4,%%xmm4                                   \n" \
>+  "lea        0x8(%[y_buf]),%[y_buf]                          \n"
> 
> // Read 4 UV from 422, upsample to 8 UV
>-#define READYUV422 \
>-  "movd       " MEMACCESS([u_buf]) ",%%xmm0                     \n"            \
>-    MEMOPREG(movd, 0x00, [u_buf], [v_buf], 1, xmm1)                            \
>-    "lea        " MEMLEA(0x4, [u_buf]) ",%[u_buf]               \n"            \
>-    "punpcklbw  %%xmm1,%%xmm0                                   \n"            \
>-    "punpcklwd  %%xmm0,%%xmm0                                   \n"            \
>-    "movq       " MEMACCESS([y_buf]) ",%%xmm4                   \n"            \
>-    "punpcklbw  %%xmm4,%%xmm4                                   \n"            \
>-    "lea        " MEMLEA(0x8, [y_buf]) ",%[y_buf]               \n"
>+#define READYUV422                                                \
>+  "movd       (%[u_buf]),%%xmm0                               \n" \
>+  "movd       0x00(%[u_buf],%[v_buf],1),%%xmm1                \n" \
>+  "lea        0x4(%[u_buf]),%[u_buf]                          \n" \
>+  "punpcklbw  %%xmm1,%%xmm0                                   \n" \
>+  "punpcklwd  %%xmm0,%%xmm0                                   \n" \
>+  "movq       (%[y_buf]),%%xmm4                               \n" \
>+  "punpcklbw  %%xmm4,%%xmm4                                   \n" \
>+  "lea        0x8(%[y_buf]),%[y_buf]                          \n"
>+
>+// Read 4 UV from 422 10 bit, upsample to 8 UV
>+// TODO(fbarchard): Consider shufb to replace pack/unpack
>+// TODO(fbarchard): Consider pmulhuw to replace psraw
>+// TODO(fbarchard): Consider pmullw to replace psllw and allow different bits.
>+#define READYUV210                                                \
>+  "movq       (%[u_buf]),%%xmm0                               \n" \
>+  "movq       0x00(%[u_buf],%[v_buf],1),%%xmm1                \n" \
>+  "lea        0x8(%[u_buf]),%[u_buf]                          \n" \
>+  "punpcklwd  %%xmm1,%%xmm0                                   \n" \
>+  "psraw      $0x2,%%xmm0                                     \n" \
>+  "packuswb   %%xmm0,%%xmm0                                   \n" \
>+  "punpcklwd  %%xmm0,%%xmm0                                   \n" \
>+  "movdqu     (%[y_buf]),%%xmm4                               \n" \
>+  "psllw      $0x6,%%xmm4                                     \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                         \n"
> 
> // Read 4 UV from 422, upsample to 8 UV.  With 8 Alpha.
>-#define READYUVA422 \
>-  "movd       " MEMACCESS([u_buf]) ",%%xmm0                     \n"            \
>-    MEMOPREG(movd, 0x00, [u_buf], [v_buf], 1, xmm1)                            \
>-    "lea        " MEMLEA(0x4, [u_buf]) ",%[u_buf]               \n"            \
>-    "punpcklbw  %%xmm1,%%xmm0                                   \n"            \
>-    "punpcklwd  %%xmm0,%%xmm0                                   \n"            \
>-    "movq       " MEMACCESS([y_buf]) ",%%xmm4                   \n"            \
>-    "punpcklbw  %%xmm4,%%xmm4                                   \n"            \
>-    "lea        " MEMLEA(0x8, [y_buf]) ",%[y_buf]               \n"            \
>-    "movq       " MEMACCESS([a_buf]) ",%%xmm5                   \n"            \
>-    "lea        " MEMLEA(0x8, [a_buf]) ",%[a_buf]               \n"
>+#define READYUVA422                                               \
>+  "movd       (%[u_buf]),%%xmm0                               \n" \
>+  "movd       0x00(%[u_buf],%[v_buf],1),%%xmm1                \n" \
>+  "lea        0x4(%[u_buf]),%[u_buf]                          \n" \
>+  "punpcklbw  %%xmm1,%%xmm0                                   \n" \
>+  "punpcklwd  %%xmm0,%%xmm0                                   \n" \
>+  "movq       (%[y_buf]),%%xmm4                               \n" \
>+  "punpcklbw  %%xmm4,%%xmm4                                   \n" \
>+  "lea        0x8(%[y_buf]),%[y_buf]                          \n" \
>+  "movq       (%[a_buf]),%%xmm5                               \n" \
>+  "lea        0x8(%[a_buf]),%[a_buf]                          \n"
> 
> // Read 4 UV from NV12, upsample to 8 UV
>-#define READNV12 \
>-  "movq       " MEMACCESS([uv_buf]) ",%%xmm0                    \n"            \
>-    "lea        " MEMLEA(0x8, [uv_buf]) ",%[uv_buf]             \n"            \
>-    "punpcklwd  %%xmm0,%%xmm0                                   \n"            \
>-    "movq       " MEMACCESS([y_buf]) ",%%xmm4                   \n"            \
>-    "punpcklbw  %%xmm4,%%xmm4                                   \n"            \
>-    "lea        " MEMLEA(0x8, [y_buf]) ",%[y_buf]               \n"
>+#define READNV12                                                  \
>+  "movq       (%[uv_buf]),%%xmm0                              \n" \
>+  "lea        0x8(%[uv_buf]),%[uv_buf]                        \n" \
>+  "punpcklwd  %%xmm0,%%xmm0                                   \n" \
>+  "movq       (%[y_buf]),%%xmm4                               \n" \
>+  "punpcklbw  %%xmm4,%%xmm4                                   \n" \
>+  "lea        0x8(%[y_buf]),%[y_buf]                          \n"
> 
> // Read 4 VU from NV21, upsample to 8 UV
>-#define READNV21 \
>-  "movq       " MEMACCESS([vu_buf]) ",%%xmm0                    \n"            \
>-    "lea        " MEMLEA(0x8, [vu_buf]) ",%[vu_buf]             \n"            \
>-    "pshufb     %[kShuffleNV21], %%xmm0                         \n"            \
>-    "movq       " MEMACCESS([y_buf]) ",%%xmm4                   \n"            \
>-    "punpcklbw  %%xmm4,%%xmm4                                   \n"            \
>-    "lea        " MEMLEA(0x8, [y_buf]) ",%[y_buf]               \n"
>+#define READNV21                                                  \
>+  "movq       (%[vu_buf]),%%xmm0                              \n" \
>+  "lea        0x8(%[vu_buf]),%[vu_buf]                        \n" \
>+  "pshufb     %[kShuffleNV21], %%xmm0                         \n" \
>+  "movq       (%[y_buf]),%%xmm4                               \n" \
>+  "punpcklbw  %%xmm4,%%xmm4                                   \n" \
>+  "lea        0x8(%[y_buf]),%[y_buf]                          \n"
> 
> // Read 4 YUY2 with 8 Y and update 4 UV to 8 UV.
>-#define READYUY2 \
>-  "movdqu     " MEMACCESS([yuy2_buf]) ",%%xmm4                  \n"            \
>-    "pshufb     %[kShuffleYUY2Y], %%xmm4                        \n"            \
>-    "movdqu     " MEMACCESS([yuy2_buf]) ",%%xmm0                \n"            \
>-    "pshufb     %[kShuffleYUY2UV], %%xmm0                       \n"            \
>-    "lea        " MEMLEA(0x10, [yuy2_buf]) ",%[yuy2_buf]        \n"
>+#define READYUY2                                                  \
>+  "movdqu     (%[yuy2_buf]),%%xmm4                            \n" \
>+  "pshufb     %[kShuffleYUY2Y], %%xmm4                        \n" \
>+  "movdqu     (%[yuy2_buf]),%%xmm0                            \n" \
>+  "pshufb     %[kShuffleYUY2UV], %%xmm0                       \n" \
>+  "lea        0x10(%[yuy2_buf]),%[yuy2_buf]                   \n"
> 
> // Read 4 UYVY with 8 Y and update 4 UV to 8 UV.
>-#define READUYVY \
>-  "movdqu     " MEMACCESS([uyvy_buf]) ",%%xmm4                  \n"            \
>-    "pshufb     %[kShuffleUYVYY], %%xmm4                        \n"            \
>-    "movdqu     " MEMACCESS([uyvy_buf]) ",%%xmm0                \n"            \
>-    "pshufb     %[kShuffleUYVYUV], %%xmm0                       \n"            \
>-    "lea        " MEMLEA(0x10, [uyvy_buf]) ",%[uyvy_buf]        \n"
>+#define READUYVY                                                  \
>+  "movdqu     (%[uyvy_buf]),%%xmm4                            \n" \
>+  "pshufb     %[kShuffleUYVYY], %%xmm4                        \n" \
>+  "movdqu     (%[uyvy_buf]),%%xmm0                            \n" \
>+  "pshufb     %[kShuffleUYVYUV], %%xmm0                       \n" \
>+  "lea        0x10(%[uyvy_buf]),%[uyvy_buf]                   \n"
> 
> #if defined(__x86_64__)
>-#define YUVTORGB_SETUP(yuvconstants) \
>-  "movdqa     " MEMACCESS([yuvconstants]) ",%%xmm8              \n"            \
>-    "movdqa     " MEMACCESS2(32, [yuvconstants]) ",%%xmm9       \n"            \
>-    "movdqa     " MEMACCESS2(64, [yuvconstants]) ",%%xmm10      \n"            \
>-    "movdqa     " MEMACCESS2(96, [yuvconstants]) ",%%xmm11      \n"            \
>-    "movdqa     " MEMACCESS2(128, [yuvconstants]) ",%%xmm12     \n"            \
>-    "movdqa     " MEMACCESS2(160, [yuvconstants]) ",%%xmm13     \n"            \
>-    "movdqa     " MEMACCESS2(192, [yuvconstants]) ",%%xmm14     \n"
>+#define YUVTORGB_SETUP(yuvconstants)                              \
>+  "movdqa     (%[yuvconstants]),%%xmm8                        \n" \
>+  "movdqa     32(%[yuvconstants]),%%xmm9                      \n" \
>+  "movdqa     64(%[yuvconstants]),%%xmm10                     \n" \
>+  "movdqa     96(%[yuvconstants]),%%xmm11                     \n" \
>+  "movdqa     128(%[yuvconstants]),%%xmm12                    \n" \
>+  "movdqa     160(%[yuvconstants]),%%xmm13                    \n" \
>+  "movdqa     192(%[yuvconstants]),%%xmm14                    \n"
> // Convert 8 pixels: 8 UV and 8 Y
>-#define YUVTORGB(yuvconstants)                                    \
>+#define YUVTORGB16(yuvconstants)                                  \
>   "movdqa     %%xmm0,%%xmm1                                   \n" \
>   "movdqa     %%xmm0,%%xmm2                                   \n" \
>   "movdqa     %%xmm0,%%xmm3                                   \n" \
>@@ -1590,72 +1776,95 @@ void RGBAToUVRow_SSSE3(const uint8* src_rgba0,
>   "pmulhuw    %%xmm14,%%xmm4                                  \n" \
>   "paddsw     %%xmm4,%%xmm0                                   \n" \
>   "paddsw     %%xmm4,%%xmm1                                   \n" \
>-  "paddsw     %%xmm4,%%xmm2                                   \n" \
>-  "psraw      $0x6,%%xmm0                                     \n" \
>-  "psraw      $0x6,%%xmm1                                     \n" \
>-  "psraw      $0x6,%%xmm2                                     \n" \
>-  "packuswb   %%xmm0,%%xmm0                                   \n" \
>-  "packuswb   %%xmm1,%%xmm1                                   \n" \
>-  "packuswb   %%xmm2,%%xmm2                                   \n"
>+  "paddsw     %%xmm4,%%xmm2                                   \n"
> #define YUVTORGB_REGS \
>   "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14",
> 
> #else
> #define YUVTORGB_SETUP(yuvconstants)
> // Convert 8 pixels: 8 UV and 8 Y
>-#define YUVTORGB(yuvconstants) \
>-  "movdqa     %%xmm0,%%xmm1                                     \n"            \
>-    "movdqa     %%xmm0,%%xmm2                                   \n"            \
>-    "movdqa     %%xmm0,%%xmm3                                   \n"            \
>-    "movdqa     " MEMACCESS2(96, [yuvconstants]) ",%%xmm0       \n"            \
>-    "pmaddubsw  " MEMACCESS([yuvconstants]) ",%%xmm1            \n"            \
>-    "psubw      %%xmm1,%%xmm0                                   \n"            \
>-    "movdqa     " MEMACCESS2(128, [yuvconstants]) ",%%xmm1      \n"            \
>-    "pmaddubsw  " MEMACCESS2(32, [yuvconstants]) ",%%xmm2       \n"            \
>-    "psubw      %%xmm2,%%xmm1                                   \n"            \
>-    "movdqa     " MEMACCESS2(160, [yuvconstants]) ",%%xmm2      \n"            \
>-    "pmaddubsw  " MEMACCESS2(64, [yuvconstants]) ",%%xmm3       \n"            \
>-    "psubw      %%xmm3,%%xmm2                                   \n"            \
>-    "pmulhuw    " MEMACCESS2(192, [yuvconstants]) ",%%xmm4      \n"            \
>-    "paddsw     %%xmm4,%%xmm0                                   \n"            \
>-    "paddsw     %%xmm4,%%xmm1                                   \n"            \
>-    "paddsw     %%xmm4,%%xmm2                                   \n"            \
>-    "psraw      $0x6,%%xmm0                                     \n"            \
>-    "psraw      $0x6,%%xmm1                                     \n"            \
>-    "psraw      $0x6,%%xmm2                                     \n"            \
>-    "packuswb   %%xmm0,%%xmm0                                   \n"            \
>-    "packuswb   %%xmm1,%%xmm1                                   \n"            \
>-    "packuswb   %%xmm2,%%xmm2                                   \n"
>+#define YUVTORGB16(yuvconstants)                                  \
>+  "movdqa     %%xmm0,%%xmm1                                   \n" \
>+  "movdqa     %%xmm0,%%xmm2                                   \n" \
>+  "movdqa     %%xmm0,%%xmm3                                   \n" \
>+  "movdqa     96(%[yuvconstants]),%%xmm0                      \n" \
>+  "pmaddubsw  (%[yuvconstants]),%%xmm1                        \n" \
>+  "psubw      %%xmm1,%%xmm0                                   \n" \
>+  "movdqa     128(%[yuvconstants]),%%xmm1                     \n" \
>+  "pmaddubsw  32(%[yuvconstants]),%%xmm2                      \n" \
>+  "psubw      %%xmm2,%%xmm1                                   \n" \
>+  "movdqa     160(%[yuvconstants]),%%xmm2                     \n" \
>+  "pmaddubsw  64(%[yuvconstants]),%%xmm3                      \n" \
>+  "psubw      %%xmm3,%%xmm2                                   \n" \
>+  "pmulhuw    192(%[yuvconstants]),%%xmm4                     \n" \
>+  "paddsw     %%xmm4,%%xmm0                                   \n" \
>+  "paddsw     %%xmm4,%%xmm1                                   \n" \
>+  "paddsw     %%xmm4,%%xmm2                                   \n"
> #define YUVTORGB_REGS
> #endif
> 
>+#define YUVTORGB(yuvconstants)                                    \
>+  YUVTORGB16(yuvconstants)                                        \
>+  "psraw      $0x6,%%xmm0                                     \n" \
>+  "psraw      $0x6,%%xmm1                                     \n" \
>+  "psraw      $0x6,%%xmm2                                     \n" \
>+  "packuswb   %%xmm0,%%xmm0                                   \n" \
>+  "packuswb   %%xmm1,%%xmm1                                   \n" \
>+  "packuswb   %%xmm2,%%xmm2                                   \n"
>+
> // Store 8 ARGB values.
>-#define STOREARGB \
>-  "punpcklbw  %%xmm1,%%xmm0                                      \n"           \
>-    "punpcklbw  %%xmm5,%%xmm2                                    \n"           \
>-    "movdqa     %%xmm0,%%xmm1                                    \n"           \
>-    "punpcklwd  %%xmm2,%%xmm0                                    \n"           \
>-    "punpckhwd  %%xmm2,%%xmm1                                    \n"           \
>-    "movdqu     %%xmm0," MEMACCESS([dst_argb]) "                 \n"           \
>-    "movdqu     %%xmm1," MEMACCESS2(0x10, [dst_argb]) "          \n"           \
>-    "lea        " MEMLEA(0x20, [dst_argb]) ", %[dst_argb]        \n"
>+#define STOREARGB                                                  \
>+  "punpcklbw  %%xmm1,%%xmm0                                    \n" \
>+  "punpcklbw  %%xmm5,%%xmm2                                    \n" \
>+  "movdqa     %%xmm0,%%xmm1                                    \n" \
>+  "punpcklwd  %%xmm2,%%xmm0                                    \n" \
>+  "punpckhwd  %%xmm2,%%xmm1                                    \n" \
>+  "movdqu     %%xmm0,(%[dst_argb])                             \n" \
>+  "movdqu     %%xmm1,0x10(%[dst_argb])                         \n" \
>+  "lea        0x20(%[dst_argb]), %[dst_argb]                   \n"
> 
> // Store 8 RGBA values.
>-#define STORERGBA \
>-  "pcmpeqb   %%xmm5,%%xmm5                                       \n"           \
>-    "punpcklbw %%xmm2,%%xmm1                                     \n"           \
>-    "punpcklbw %%xmm0,%%xmm5                                     \n"           \
>-    "movdqa    %%xmm5,%%xmm0                                     \n"           \
>-    "punpcklwd %%xmm1,%%xmm5                                     \n"           \
>-    "punpckhwd %%xmm1,%%xmm0                                     \n"           \
>-    "movdqu    %%xmm5," MEMACCESS([dst_rgba]) "                  \n"           \
>-    "movdqu    %%xmm0," MEMACCESS2(0x10, [dst_rgba]) "           \n"           \
>-    "lea       " MEMLEA(0x20, [dst_rgba]) ",%[dst_rgba]          \n"
>-
>-void OMITFP I444ToARGBRow_SSSE3(const uint8* y_buf,
>-                                const uint8* u_buf,
>-                                const uint8* v_buf,
>-                                uint8* dst_argb,
>+#define STORERGBA                                                  \
>+  "pcmpeqb   %%xmm5,%%xmm5                                     \n" \
>+  "punpcklbw %%xmm2,%%xmm1                                     \n" \
>+  "punpcklbw %%xmm0,%%xmm5                                     \n" \
>+  "movdqa    %%xmm5,%%xmm0                                     \n" \
>+  "punpcklwd %%xmm1,%%xmm5                                     \n" \
>+  "punpckhwd %%xmm1,%%xmm0                                     \n" \
>+  "movdqu    %%xmm5,(%[dst_rgba])                              \n" \
>+  "movdqu    %%xmm0,0x10(%[dst_rgba])                          \n" \
>+  "lea       0x20(%[dst_rgba]),%[dst_rgba]                     \n"
>+
>+// Store 8 AR30 values.
>+#define STOREAR30                                                  \
>+  "psraw      $0x4,%%xmm0                                      \n" \
>+  "psraw      $0x4,%%xmm1                                      \n" \
>+  "psraw      $0x4,%%xmm2                                      \n" \
>+  "pminsw     %%xmm7,%%xmm0                                    \n" \
>+  "pminsw     %%xmm7,%%xmm1                                    \n" \
>+  "pminsw     %%xmm7,%%xmm2                                    \n" \
>+  "pmaxsw     %%xmm6,%%xmm0                                    \n" \
>+  "pmaxsw     %%xmm6,%%xmm1                                    \n" \
>+  "pmaxsw     %%xmm6,%%xmm2                                    \n" \
>+  "psllw      $0x4,%%xmm2                                      \n" \
>+  "movdqa     %%xmm0,%%xmm3                                    \n" \
>+  "punpcklwd  %%xmm2,%%xmm0                                    \n" \
>+  "punpckhwd  %%xmm2,%%xmm3                                    \n" \
>+  "movdqa     %%xmm1,%%xmm2                                    \n" \
>+  "punpcklwd  %%xmm5,%%xmm1                                    \n" \
>+  "punpckhwd  %%xmm5,%%xmm2                                    \n" \
>+  "pslld      $0xa,%%xmm1                                      \n" \
>+  "pslld      $0xa,%%xmm2                                      \n" \
>+  "por        %%xmm1,%%xmm0                                    \n" \
>+  "por        %%xmm2,%%xmm3                                    \n" \
>+  "movdqu     %%xmm0,(%[dst_ar30])                             \n" \
>+  "movdqu     %%xmm3,0x10(%[dst_ar30])                         \n" \
>+  "lea        0x20(%[dst_ar30]), %[dst_ar30]                   \n"
>+
>+void OMITFP I444ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   asm volatile (
>@@ -1676,15 +1885,15 @@ void OMITFP I444ToARGBRow_SSSE3(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS
>+  : "memory", "cc", YUVTORGB_REGS
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
> 
>-void OMITFP I422ToRGB24Row_SSSE3(const uint8* y_buf,
>-                                 const uint8* u_buf,
>-                                 const uint8* v_buf,
>-                                 uint8* dst_rgb24,
>+void OMITFP I422ToRGB24Row_SSSE3(const uint8_t* y_buf,
>+                                 const uint8_t* u_buf,
>+                                 const uint8_t* v_buf,
>+                                 uint8_t* dst_rgb24,
>                                  const struct YuvConstants* yuvconstants,
>                                  int width) {
>   asm volatile (
>@@ -1705,9 +1914,9 @@ void OMITFP I422ToRGB24Row_SSSE3(const uint8* y_buf,
>     "pshufb    %%xmm5,%%xmm0                   \n"
>     "pshufb    %%xmm6,%%xmm1                   \n"
>     "palignr   $0xc,%%xmm0,%%xmm1              \n"
>-    "movq      %%xmm0," MEMACCESS([dst_rgb24]) "\n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x8,[dst_rgb24]) "\n"
>-    "lea       " MEMLEA(0x18,[dst_rgb24]) ",%[dst_rgb24] \n"
>+    "movq      %%xmm0,(%[dst_rgb24])           \n"
>+    "movdqu    %%xmm1,0x8(%[dst_rgb24])        \n"
>+    "lea       0x18(%[dst_rgb24]),%[dst_rgb24] \n"
>     "subl      $0x8,%[width]                   \n"
>     "jg        1b                              \n"
>   : [y_buf]"+r"(y_buf),    // %[y_buf]
>@@ -1722,15 +1931,15 @@ void OMITFP I422ToRGB24Row_SSSE3(const uint8* y_buf,
>   : [yuvconstants]"r"(yuvconstants),  // %[yuvconstants]
>     [kShuffleMaskARGBToRGB24_0]"m"(kShuffleMaskARGBToRGB24_0),
>     [kShuffleMaskARGBToRGB24]"m"(kShuffleMaskARGBToRGB24)
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS
>+  : "memory", "cc", YUVTORGB_REGS
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>   );
> }
> 
>-void OMITFP I422ToARGBRow_SSSE3(const uint8* y_buf,
>-                                const uint8* u_buf,
>-                                const uint8* v_buf,
>-                                uint8* dst_argb,
>+void OMITFP I422ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   asm volatile (
>@@ -1751,17 +1960,116 @@ void OMITFP I422ToARGBRow_SSSE3(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS
>+  : "memory", "cc", YUVTORGB_REGS
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>+  );
>+}
>+
>+void OMITFP I422ToAR30Row_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_ar30,
>+                                const struct YuvConstants* yuvconstants,
>+                                int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+    "pcmpeqb   %%xmm5,%%xmm5                   \n"  // AR30 constants
>+    "psrlw     $14,%%xmm5                      \n"
>+    "psllw     $4,%%xmm5                       \n"  // 2 alpha bits
>+    "pxor      %%xmm6,%%xmm6                   \n"
>+    "pcmpeqb   %%xmm7,%%xmm7                   \n"  // 0 for min
>+    "psrlw     $6,%%xmm7                       \n"  // 1023 for max
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUV422
>+    YUVTORGB16(yuvconstants)
>+    STOREAR30
>+    "sub       $0x8,%[width]                   \n"
>+    "jg        1b                              \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [dst_ar30]"+r"(dst_ar30),  // %[dst_ar30]
>+    [width]"+rm"(width)    // %[width]
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>+  );
>+}
>+
>+// 10 bit YUV to ARGB
>+void OMITFP I210ToARGBRow_SSSE3(const uint16_t* y_buf,
>+                                const uint16_t* u_buf,
>+                                const uint16_t* v_buf,
>+                                uint8_t* dst_argb,
>+                                const struct YuvConstants* yuvconstants,
>+                                int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUV210
>+    YUVTORGB(yuvconstants)
>+    STOREARGB
>+    "sub       $0x8,%[width]                   \n"
>+    "jg        1b                              \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>+    [width]"+rm"(width)    // %[width]
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
> 
>+// 10 bit YUV to AR30
>+void OMITFP I210ToAR30Row_SSSE3(const uint16_t* y_buf,
>+                                const uint16_t* u_buf,
>+                                const uint16_t* v_buf,
>+                                uint8_t* dst_ar30,
>+                                const struct YuvConstants* yuvconstants,
>+                                int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+    "psrlw     $14,%%xmm5                      \n"
>+    "psllw     $4,%%xmm5                       \n"  // 2 alpha bits
>+    "pxor      %%xmm6,%%xmm6                   \n"
>+    "pcmpeqb   %%xmm7,%%xmm7                   \n"  // 0 for min
>+    "psrlw     $6,%%xmm7                       \n"  // 1023 for max
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUV210
>+    YUVTORGB16(yuvconstants)
>+    STOREAR30
>+    "sub       $0x8,%[width]                   \n"
>+    "jg        1b                              \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [dst_ar30]"+r"(dst_ar30),  // %[dst_ar30]
>+    [width]"+rm"(width)    // %[width]
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>+  );
>+}
>+
> #ifdef HAS_I422ALPHATOARGBROW_SSSE3
>-void OMITFP I422AlphaToARGBRow_SSSE3(const uint8* y_buf,
>-                                     const uint8* u_buf,
>-                                     const uint8* v_buf,
>-                                     const uint8* a_buf,
>-                                     uint8* dst_argb,
>+void OMITFP I422AlphaToARGBRow_SSSE3(const uint8_t* y_buf,
>+                                     const uint8_t* u_buf,
>+                                     const uint8_t* v_buf,
>+                                     const uint8_t* a_buf,
>+                                     uint8_t* dst_argb,
>                                      const struct YuvConstants* yuvconstants,
>                                      int width) {
>   // clang-format off
>@@ -1787,16 +2095,16 @@ void OMITFP I422AlphaToARGBRow_SSSE3(const uint8* y_buf,
>     [width]"+rm"(width)    // %[width]
> #endif
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS
>+  : "memory", "cc", YUVTORGB_REGS
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
> }
> #endif  // HAS_I422ALPHATOARGBROW_SSSE3
> 
>-void OMITFP NV12ToARGBRow_SSSE3(const uint8* y_buf,
>-                                const uint8* uv_buf,
>-                                uint8* dst_argb,
>+void OMITFP NV12ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* uv_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   // clang-format off
>@@ -1816,15 +2124,15 @@ void OMITFP NV12ToARGBRow_SSSE3(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-    : "memory", "cc", YUVTORGB_REGS  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS
>       "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
> }
> 
>-void OMITFP NV21ToARGBRow_SSSE3(const uint8* y_buf,
>-                                const uint8* vu_buf,
>-                                uint8* dst_argb,
>+void OMITFP NV21ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* vu_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   // clang-format off
>@@ -1845,14 +2153,14 @@ void OMITFP NV21ToARGBRow_SSSE3(const uint8* y_buf,
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleNV21]"m"(kShuffleNV21)
>-    : "memory", "cc", YUVTORGB_REGS  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS
>       "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
> }
> 
>-void OMITFP YUY2ToARGBRow_SSSE3(const uint8* yuy2_buf,
>-                                uint8* dst_argb,
>+void OMITFP YUY2ToARGBRow_SSSE3(const uint8_t* yuy2_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   // clang-format off
>@@ -1873,14 +2181,14 @@ void OMITFP YUY2ToARGBRow_SSSE3(const uint8* yuy2_buf,
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleYUY2Y]"m"(kShuffleYUY2Y),
>     [kShuffleYUY2UV]"m"(kShuffleYUY2UV)
>-    : "memory", "cc", YUVTORGB_REGS  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS
>       "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
> }
> 
>-void OMITFP UYVYToARGBRow_SSSE3(const uint8* uyvy_buf,
>-                                uint8* dst_argb,
>+void OMITFP UYVYToARGBRow_SSSE3(const uint8_t* uyvy_buf,
>+                                uint8_t* dst_argb,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   // clang-format off
>@@ -1901,16 +2209,16 @@ void OMITFP UYVYToARGBRow_SSSE3(const uint8* uyvy_buf,
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleUYVYY]"m"(kShuffleUYVYY),
>     [kShuffleUYVYUV]"m"(kShuffleUYVYUV)
>-    : "memory", "cc", YUVTORGB_REGS  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS
>       "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
> }
> 
>-void OMITFP I422ToRGBARow_SSSE3(const uint8* y_buf,
>-                                const uint8* u_buf,
>-                                const uint8* v_buf,
>-                                uint8* dst_rgba,
>+void OMITFP I422ToRGBARow_SSSE3(const uint8_t* y_buf,
>+                                const uint8_t* u_buf,
>+                                const uint8_t* v_buf,
>+                                uint8_t* dst_rgba,
>                                 const struct YuvConstants* yuvconstants,
>                                 int width) {
>   asm volatile (
>@@ -1931,7 +2239,7 @@ void OMITFP I422ToRGBARow_SSSE3(const uint8* y_buf,
>     [dst_rgba]"+r"(dst_rgba),  // %[dst_rgba]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS
>+  : "memory", "cc", YUVTORGB_REGS
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
>@@ -1939,96 +2247,113 @@ void OMITFP I422ToRGBARow_SSSE3(const uint8* y_buf,
> #endif  // HAS_I422TOARGBROW_SSSE3
> 
> // Read 16 UV from 444
>-#define READYUV444_AVX2 \
>-  "vmovdqu    " MEMACCESS([u_buf]) ",%%xmm0                         \n"        \
>-    MEMOPREG(vmovdqu, 0x00, [u_buf], [v_buf], 1, xmm1)                         \
>-    "lea        " MEMLEA(0x10, [u_buf]) ",%[u_buf]                  \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpermq     $0xd8,%%ymm1,%%ymm1                                 \n"        \
>-    "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n"        \
>-    "vmovdqu    " MEMACCESS([y_buf]) ",%%xmm4                       \n"        \
>-    "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n"        \
>-    "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n"        \
>-    "lea        " MEMLEA(0x10, [y_buf]) ",%[y_buf]                  \n"
>+#define READYUV444_AVX2                                               \
>+  "vmovdqu    (%[u_buf]),%%xmm0                                   \n" \
>+  "vmovdqu    0x00(%[u_buf],%[v_buf],1),%%xmm1                    \n" \
>+  "lea        0x10(%[u_buf]),%[u_buf]                             \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpermq     $0xd8,%%ymm1,%%ymm1                                 \n" \
>+  "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n" \
>+  "vmovdqu    (%[y_buf]),%%xmm4                                   \n" \
>+  "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n" \
>+  "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                             \n"
> 
> // Read 8 UV from 422, upsample to 16 UV.
>-#define READYUV422_AVX2 \
>-  "vmovq      " MEMACCESS([u_buf]) ",%%xmm0                         \n"        \
>-    MEMOPREG(vmovq, 0x00, [u_buf], [v_buf], 1, xmm1)                           \
>-    "lea        " MEMLEA(0x8, [u_buf]) ",%[u_buf]                   \n"        \
>-    "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n"        \
>-    "vmovdqu    " MEMACCESS([y_buf]) ",%%xmm4                       \n"        \
>-    "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n"        \
>-    "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n"        \
>-    "lea        " MEMLEA(0x10, [y_buf]) ",%[y_buf]                  \n"
>+#define READYUV422_AVX2                                               \
>+  "vmovq      (%[u_buf]),%%xmm0                                   \n" \
>+  "vmovq      0x00(%[u_buf],%[v_buf],1),%%xmm1                    \n" \
>+  "lea        0x8(%[u_buf]),%[u_buf]                              \n" \
>+  "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n" \
>+  "vmovdqu    (%[y_buf]),%%xmm4                                   \n" \
>+  "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n" \
>+  "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                             \n"
>+
>+// Read 8 UV from 210 10 bit, upsample to 16 UV
>+// TODO(fbarchard): Consider vshufb to replace pack/unpack
>+// TODO(fbarchard): Consider vunpcklpd to combine the 2 registers into 1.
>+#define READYUV210_AVX2                                            \
>+  "vmovdqu    (%[u_buf]),%%xmm0                                \n" \
>+  "vmovdqu    0x00(%[u_buf],%[v_buf],1),%%xmm1                 \n" \
>+  "lea        0x10(%[u_buf]),%[u_buf]                          \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                              \n" \
>+  "vpermq     $0xd8,%%ymm1,%%ymm1                              \n" \
>+  "vpunpcklwd %%ymm1,%%ymm0,%%ymm0                             \n" \
>+  "vpsraw     $0x2,%%ymm0,%%ymm0                               \n" \
>+  "vpackuswb  %%ymm0,%%ymm0,%%ymm0                             \n" \
>+  "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                             \n" \
>+  "vmovdqu    (%[y_buf]),%%ymm4                                \n" \
>+  "vpsllw     $0x6,%%ymm4,%%ymm4                               \n" \
>+  "lea        0x20(%[y_buf]),%[y_buf]                          \n"
> 
> // Read 8 UV from 422, upsample to 16 UV.  With 16 Alpha.
>-#define READYUVA422_AVX2 \
>-  "vmovq      " MEMACCESS([u_buf]) ",%%xmm0                         \n"        \
>-    MEMOPREG(vmovq, 0x00, [u_buf], [v_buf], 1, xmm1)                           \
>-    "lea        " MEMLEA(0x8, [u_buf]) ",%[u_buf]                   \n"        \
>-    "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n"        \
>-    "vmovdqu    " MEMACCESS([y_buf]) ",%%xmm4                       \n"        \
>-    "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n"        \
>-    "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n"        \
>-    "lea        " MEMLEA(0x10, [y_buf]) ",%[y_buf]                  \n"        \
>-    "vmovdqu    " MEMACCESS([a_buf]) ",%%xmm5                       \n"        \
>-    "vpermq     $0xd8,%%ymm5,%%ymm5                                 \n"        \
>-    "lea        " MEMLEA(0x10, [a_buf]) ",%[a_buf]                  \n"
>+#define READYUVA422_AVX2                                              \
>+  "vmovq      (%[u_buf]),%%xmm0                                   \n" \
>+  "vmovq      0x00(%[u_buf],%[v_buf],1),%%xmm1                    \n" \
>+  "lea        0x8(%[u_buf]),%[u_buf]                              \n" \
>+  "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n" \
>+  "vmovdqu    (%[y_buf]),%%xmm4                                   \n" \
>+  "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n" \
>+  "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                             \n" \
>+  "vmovdqu    (%[a_buf]),%%xmm5                                   \n" \
>+  "vpermq     $0xd8,%%ymm5,%%ymm5                                 \n" \
>+  "lea        0x10(%[a_buf]),%[a_buf]                             \n"
> 
> // Read 8 UV from NV12, upsample to 16 UV.
>-#define READNV12_AVX2 \
>-  "vmovdqu    " MEMACCESS([uv_buf]) ",%%xmm0                        \n"        \
>-    "lea        " MEMLEA(0x10, [uv_buf]) ",%[uv_buf]                \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n"        \
>-    "vmovdqu    " MEMACCESS([y_buf]) ",%%xmm4                       \n"        \
>-    "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n"        \
>-    "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n"        \
>-    "lea        " MEMLEA(0x10, [y_buf]) ",%[y_buf]                  \n"
>+#define READNV12_AVX2                                                 \
>+  "vmovdqu    (%[uv_buf]),%%xmm0                                  \n" \
>+  "lea        0x10(%[uv_buf]),%[uv_buf]                           \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpunpcklwd %%ymm0,%%ymm0,%%ymm0                                \n" \
>+  "vmovdqu    (%[y_buf]),%%xmm4                                   \n" \
>+  "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n" \
>+  "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                             \n"
> 
> // Read 8 VU from NV21, upsample to 16 UV.
>-#define READNV21_AVX2 \
>-  "vmovdqu    " MEMACCESS([vu_buf]) ",%%xmm0                        \n"        \
>-    "lea        " MEMLEA(0x10, [vu_buf]) ",%[vu_buf]                \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpshufb     %[kShuffleNV21], %%ymm0, %%ymm0                    \n"        \
>-    "vmovdqu    " MEMACCESS([y_buf]) ",%%xmm4                       \n"        \
>-    "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n"        \
>-    "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n"        \
>-    "lea        " MEMLEA(0x10, [y_buf]) ",%[y_buf]                  \n"
>+#define READNV21_AVX2                                                 \
>+  "vmovdqu    (%[vu_buf]),%%xmm0                                  \n" \
>+  "lea        0x10(%[vu_buf]),%[vu_buf]                           \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpshufb     %[kShuffleNV21], %%ymm0, %%ymm0                    \n" \
>+  "vmovdqu    (%[y_buf]),%%xmm4                                   \n" \
>+  "vpermq     $0xd8,%%ymm4,%%ymm4                                 \n" \
>+  "vpunpcklbw %%ymm4,%%ymm4,%%ymm4                                \n" \
>+  "lea        0x10(%[y_buf]),%[y_buf]                             \n"
> 
> // Read 8 YUY2 with 16 Y and upsample 8 UV to 16 UV.
>-#define READYUY2_AVX2 \
>-  "vmovdqu    " MEMACCESS([yuy2_buf]) ",%%ymm4                      \n"        \
>-    "vpshufb    %[kShuffleYUY2Y], %%ymm4, %%ymm4                    \n"        \
>-    "vmovdqu    " MEMACCESS([yuy2_buf]) ",%%ymm0                    \n"        \
>-    "vpshufb    %[kShuffleYUY2UV], %%ymm0, %%ymm0                   \n"        \
>-    "lea        " MEMLEA(0x20, [yuy2_buf]) ",%[yuy2_buf]            \n"
>+#define READYUY2_AVX2                                                 \
>+  "vmovdqu    (%[yuy2_buf]),%%ymm4                                \n" \
>+  "vpshufb    %[kShuffleYUY2Y], %%ymm4, %%ymm4                    \n" \
>+  "vmovdqu    (%[yuy2_buf]),%%ymm0                                \n" \
>+  "vpshufb    %[kShuffleYUY2UV], %%ymm0, %%ymm0                   \n" \
>+  "lea        0x20(%[yuy2_buf]),%[yuy2_buf]                       \n"
> 
> // Read 8 UYVY with 16 Y and upsample 8 UV to 16 UV.
>-#define READUYVY_AVX2 \
>-  "vmovdqu     " MEMACCESS([uyvy_buf]) ",%%ymm4                     \n"        \
>-    "vpshufb     %[kShuffleUYVYY], %%ymm4, %%ymm4                   \n"        \
>-    "vmovdqu     " MEMACCESS([uyvy_buf]) ",%%ymm0                   \n"        \
>-    "vpshufb     %[kShuffleUYVYUV], %%ymm0, %%ymm0                  \n"        \
>-    "lea        " MEMLEA(0x20, [uyvy_buf]) ",%[uyvy_buf]            \n"
>+#define READUYVY_AVX2                                                 \
>+  "vmovdqu    (%[uyvy_buf]),%%ymm4                                \n" \
>+  "vpshufb    %[kShuffleUYVYY], %%ymm4, %%ymm4                    \n" \
>+  "vmovdqu    (%[uyvy_buf]),%%ymm0                                \n" \
>+  "vpshufb    %[kShuffleUYVYUV], %%ymm0, %%ymm0                   \n" \
>+  "lea        0x20(%[uyvy_buf]),%[uyvy_buf]                       \n"
> 
> #if defined(__x86_64__)
>-#define YUVTORGB_SETUP_AVX2(yuvconstants) \
>-  "vmovdqa     " MEMACCESS([yuvconstants]) ",%%ymm8              \n"           \
>-    "vmovdqa     " MEMACCESS2(32, [yuvconstants]) ",%%ymm9       \n"           \
>-    "vmovdqa     " MEMACCESS2(64, [yuvconstants]) ",%%ymm10      \n"           \
>-    "vmovdqa     " MEMACCESS2(96, [yuvconstants]) ",%%ymm11      \n"           \
>-    "vmovdqa     " MEMACCESS2(128, [yuvconstants]) ",%%ymm12     \n"           \
>-    "vmovdqa     " MEMACCESS2(160, [yuvconstants]) ",%%ymm13     \n"           \
>-    "vmovdqa     " MEMACCESS2(192, [yuvconstants]) ",%%ymm14     \n"
>-
>-#define YUVTORGB_AVX2(yuvconstants)                                   \
>+#define YUVTORGB_SETUP_AVX2(yuvconstants)                            \
>+  "vmovdqa     (%[yuvconstants]),%%ymm8                          \n" \
>+  "vmovdqa     32(%[yuvconstants]),%%ymm9                        \n" \
>+  "vmovdqa     64(%[yuvconstants]),%%ymm10                       \n" \
>+  "vmovdqa     96(%[yuvconstants]),%%ymm11                       \n" \
>+  "vmovdqa     128(%[yuvconstants]),%%ymm12                      \n" \
>+  "vmovdqa     160(%[yuvconstants]),%%ymm13                      \n" \
>+  "vmovdqa     192(%[yuvconstants]),%%ymm14                      \n"
>+
>+#define YUVTORGB16_AVX2(yuvconstants)                                 \
>   "vpmaddubsw  %%ymm10,%%ymm0,%%ymm2                              \n" \
>   "vpmaddubsw  %%ymm9,%%ymm0,%%ymm1                               \n" \
>   "vpmaddubsw  %%ymm8,%%ymm0,%%ymm0                               \n" \
>@@ -2038,13 +2363,7 @@ void OMITFP I422ToRGBARow_SSSE3(const uint8* y_buf,
>   "vpmulhuw    %%ymm14,%%ymm4,%%ymm4                              \n" \
>   "vpaddsw     %%ymm4,%%ymm0,%%ymm0                               \n" \
>   "vpaddsw     %%ymm4,%%ymm1,%%ymm1                               \n" \
>-  "vpaddsw     %%ymm4,%%ymm2,%%ymm2                               \n" \
>-  "vpsraw      $0x6,%%ymm0,%%ymm0                                 \n" \
>-  "vpsraw      $0x6,%%ymm1,%%ymm1                                 \n" \
>-  "vpsraw      $0x6,%%ymm2,%%ymm2                                 \n" \
>-  "vpackuswb   %%ymm0,%%ymm0,%%ymm0                               \n" \
>-  "vpackuswb   %%ymm1,%%ymm1,%%ymm1                               \n" \
>-  "vpackuswb   %%ymm2,%%ymm2,%%ymm2                               \n"
>+  "vpaddsw     %%ymm4,%%ymm2,%%ymm2                               \n"
> 
> #define YUVTORGB_REGS_AVX2 \
>   "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14",
>@@ -2052,48 +2371,78 @@ void OMITFP I422ToRGBARow_SSSE3(const uint8* y_buf,
> #else  // Convert 16 pixels: 16 UV and 16 Y.
> 
> #define YUVTORGB_SETUP_AVX2(yuvconstants)
>-#define YUVTORGB_AVX2(yuvconstants) \
>-  "vpmaddubsw  " MEMACCESS2(64, [yuvconstants]) ",%%ymm0,%%ymm2     \n"        \
>-    "vpmaddubsw  " MEMACCESS2(32, [yuvconstants]) ",%%ymm0,%%ymm1   \n"        \
>-    "vpmaddubsw  " MEMACCESS([yuvconstants]) ",%%ymm0,%%ymm0        \n"        \
>-    "vmovdqu     " MEMACCESS2(160, [yuvconstants]) ",%%ymm3         \n"        \
>-    "vpsubw      %%ymm2,%%ymm3,%%ymm2                               \n"        \
>-    "vmovdqu     " MEMACCESS2(128, [yuvconstants]) ",%%ymm3         \n"        \
>-    "vpsubw      %%ymm1,%%ymm3,%%ymm1                               \n"        \
>-    "vmovdqu     " MEMACCESS2(96, [yuvconstants]) ",%%ymm3          \n"        \
>-    "vpsubw      %%ymm0,%%ymm3,%%ymm0                               \n"        \
>-    "vpmulhuw    " MEMACCESS2(192, [yuvconstants]) ",%%ymm4,%%ymm4  \n"        \
>-    "vpaddsw     %%ymm4,%%ymm0,%%ymm0                               \n"        \
>-    "vpaddsw     %%ymm4,%%ymm1,%%ymm1                               \n"        \
>-    "vpaddsw     %%ymm4,%%ymm2,%%ymm2                               \n"        \
>-    "vpsraw      $0x6,%%ymm0,%%ymm0                                 \n"        \
>-    "vpsraw      $0x6,%%ymm1,%%ymm1                                 \n"        \
>-    "vpsraw      $0x6,%%ymm2,%%ymm2                                 \n"        \
>-    "vpackuswb   %%ymm0,%%ymm0,%%ymm0                               \n"        \
>-    "vpackuswb   %%ymm1,%%ymm1,%%ymm1                               \n"        \
>-    "vpackuswb   %%ymm2,%%ymm2,%%ymm2                               \n"
>+#define YUVTORGB16_AVX2(yuvconstants)                                 \
>+  "vpmaddubsw  64(%[yuvconstants]),%%ymm0,%%ymm2                  \n" \
>+  "vpmaddubsw  32(%[yuvconstants]),%%ymm0,%%ymm1                  \n" \
>+  "vpmaddubsw  (%[yuvconstants]),%%ymm0,%%ymm0                    \n" \
>+  "vmovdqu     160(%[yuvconstants]),%%ymm3                        \n" \
>+  "vpsubw      %%ymm2,%%ymm3,%%ymm2                               \n" \
>+  "vmovdqu     128(%[yuvconstants]),%%ymm3                        \n" \
>+  "vpsubw      %%ymm1,%%ymm3,%%ymm1                               \n" \
>+  "vmovdqu     96(%[yuvconstants]),%%ymm3                         \n" \
>+  "vpsubw      %%ymm0,%%ymm3,%%ymm0                               \n" \
>+  "vpmulhuw    192(%[yuvconstants]),%%ymm4,%%ymm4                 \n" \
>+  "vpaddsw     %%ymm4,%%ymm0,%%ymm0                               \n" \
>+  "vpaddsw     %%ymm4,%%ymm1,%%ymm1                               \n" \
>+  "vpaddsw     %%ymm4,%%ymm2,%%ymm2                               \n"
> #define YUVTORGB_REGS_AVX2
> #endif
> 
>+#define YUVTORGB_AVX2(yuvconstants)                                   \
>+  YUVTORGB16_AVX2(yuvconstants)                                       \
>+  "vpsraw      $0x6,%%ymm0,%%ymm0                                 \n" \
>+  "vpsraw      $0x6,%%ymm1,%%ymm1                                 \n" \
>+  "vpsraw      $0x6,%%ymm2,%%ymm2                                 \n" \
>+  "vpackuswb   %%ymm0,%%ymm0,%%ymm0                               \n" \
>+  "vpackuswb   %%ymm1,%%ymm1,%%ymm1                               \n" \
>+  "vpackuswb   %%ymm2,%%ymm2,%%ymm2                               \n"
>+
> // Store 16 ARGB values.
>-#define STOREARGB_AVX2 \
>-  "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                  \n"        \
>-    "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n"        \
>-    "vpunpcklbw %%ymm5,%%ymm2,%%ymm2                                \n"        \
>-    "vpermq     $0xd8,%%ymm2,%%ymm2                                 \n"        \
>-    "vpunpcklwd %%ymm2,%%ymm0,%%ymm1                                \n"        \
>-    "vpunpckhwd %%ymm2,%%ymm0,%%ymm0                                \n"        \
>-    "vmovdqu    %%ymm1," MEMACCESS([dst_argb]) "                    \n"        \
>-    "vmovdqu    %%ymm0," MEMACCESS2(0x20, [dst_argb]) "             \n"        \
>-    "lea       " MEMLEA(0x40, [dst_argb]) ", %[dst_argb]            \n"
>+#define STOREARGB_AVX2                                                \
>+  "vpunpcklbw %%ymm1,%%ymm0,%%ymm0                                \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpunpcklbw %%ymm5,%%ymm2,%%ymm2                                \n" \
>+  "vpermq     $0xd8,%%ymm2,%%ymm2                                 \n" \
>+  "vpunpcklwd %%ymm2,%%ymm0,%%ymm1                                \n" \
>+  "vpunpckhwd %%ymm2,%%ymm0,%%ymm0                                \n" \
>+  "vmovdqu    %%ymm1,(%[dst_argb])                                \n" \
>+  "vmovdqu    %%ymm0,0x20(%[dst_argb])                            \n" \
>+  "lea       0x40(%[dst_argb]), %[dst_argb]                       \n"
>+
>+// Store 16 AR30 values.
>+#define STOREAR30_AVX2                                                \
>+  "vpsraw     $0x4,%%ymm0,%%ymm0                                  \n" \
>+  "vpsraw     $0x4,%%ymm1,%%ymm1                                  \n" \
>+  "vpsraw     $0x4,%%ymm2,%%ymm2                                  \n" \
>+  "vpminsw    %%ymm7,%%ymm0,%%ymm0                                \n" \
>+  "vpminsw    %%ymm7,%%ymm1,%%ymm1                                \n" \
>+  "vpminsw    %%ymm7,%%ymm2,%%ymm2                                \n" \
>+  "vpmaxsw    %%ymm6,%%ymm0,%%ymm0                                \n" \
>+  "vpmaxsw    %%ymm6,%%ymm1,%%ymm1                                \n" \
>+  "vpmaxsw    %%ymm6,%%ymm2,%%ymm2                                \n" \
>+  "vpsllw     $0x4,%%ymm2,%%ymm2                                  \n" \
>+  "vpermq     $0xd8,%%ymm0,%%ymm0                                 \n" \
>+  "vpermq     $0xd8,%%ymm1,%%ymm1                                 \n" \
>+  "vpermq     $0xd8,%%ymm2,%%ymm2                                 \n" \
>+  "vpunpckhwd %%ymm2,%%ymm0,%%ymm3                                \n" \
>+  "vpunpcklwd %%ymm2,%%ymm0,%%ymm0                                \n" \
>+  "vpunpckhwd %%ymm5,%%ymm1,%%ymm2                                \n" \
>+  "vpunpcklwd %%ymm5,%%ymm1,%%ymm1                                \n" \
>+  "vpslld     $0xa,%%ymm1,%%ymm1                                  \n" \
>+  "vpslld     $0xa,%%ymm2,%%ymm2                                  \n" \
>+  "vpor       %%ymm1,%%ymm0,%%ymm0                                \n" \
>+  "vpor       %%ymm2,%%ymm3,%%ymm3                                \n" \
>+  "vmovdqu    %%ymm0,(%[dst_ar30])                                \n" \
>+  "vmovdqu    %%ymm3,0x20(%[dst_ar30])                            \n" \
>+  "lea        0x40(%[dst_ar30]), %[dst_ar30]                      \n"
> 
> #ifdef HAS_I444TOARGBROW_AVX2
> // 16 pixels
> // 16 UV values with 16 Y producing 16 ARGB (64 bytes).
>-void OMITFP I444ToARGBRow_AVX2(const uint8* y_buf,
>-                               const uint8* u_buf,
>-                               const uint8* v_buf,
>-                               uint8* dst_argb,
>+void OMITFP I444ToARGBRow_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   asm volatile (
>@@ -2115,7 +2464,7 @@ void OMITFP I444ToARGBRow_AVX2(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS_AVX2
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
>@@ -2124,10 +2473,10 @@ void OMITFP I444ToARGBRow_AVX2(const uint8* y_buf,
> #if defined(HAS_I422TOARGBROW_AVX2)
> // 16 pixels
> // 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
>-void OMITFP I422ToARGBRow_AVX2(const uint8* y_buf,
>-                               const uint8* u_buf,
>-                               const uint8* v_buf,
>-                               uint8* dst_argb,
>+void OMITFP I422ToARGBRow_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   asm volatile (
>@@ -2150,84 +2499,74 @@ void OMITFP I422ToARGBRow_AVX2(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS_AVX2
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
> #endif  // HAS_I422TOARGBROW_AVX2
> 
>-#if defined(HAS_I422ALPHATOARGBROW_AVX2)
>+#if defined(HAS_I422TOAR30ROW_AVX2)
> // 16 pixels
>-// 8 UV values upsampled to 16 UV, mixed with 16 Y and 16 A producing 16 ARGB.
>-void OMITFP I422AlphaToARGBRow_AVX2(const uint8* y_buf,
>-                                    const uint8* u_buf,
>-                                    const uint8* v_buf,
>-                                    const uint8* a_buf,
>-                                    uint8* dst_argb,
>-                                    const struct YuvConstants* yuvconstants,
>-                                    int width) {
>-  // clang-format off
>+// 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 AR30 (64 bytes).
>+void OMITFP I422ToAR30Row_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_ar30,
>+                               const struct YuvConstants* yuvconstants,
>+                               int width) {
>   asm volatile (
>     YUVTORGB_SETUP_AVX2(yuvconstants)
>     "sub       %[u_buf],%[v_buf]               \n"
>+    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"  // AR30 constants
>+    "vpsrlw    $14,%%ymm5,%%ymm5               \n"
>+    "vpsllw    $4,%%ymm5,%%ymm5                \n"  // 2 alpha bits
>+    "vpxor     %%ymm6,%%ymm6,%%ymm6            \n"  // 0 for min
>+    "vpcmpeqb  %%ymm7,%%ymm7,%%ymm7            \n"  // 1023 for max
>+    "vpsrlw    $6,%%ymm7,%%ymm7                \n"
> 
>     LABELALIGN
>     "1:                                        \n"
>-    READYUVA422_AVX2
>-    YUVTORGB_AVX2(yuvconstants)
>-    STOREARGB_AVX2
>-    "subl      $0x10,%[width]                  \n"
>+    READYUV422_AVX2
>+    YUVTORGB16_AVX2(yuvconstants)
>+    STOREAR30_AVX2
>+    "sub       $0x10,%[width]                  \n"
>     "jg        1b                              \n"
>+
>     "vzeroupper                                \n"
>   : [y_buf]"+r"(y_buf),    // %[y_buf]
>     [u_buf]"+r"(u_buf),    // %[u_buf]
>     [v_buf]"+r"(v_buf),    // %[v_buf]
>-    [a_buf]"+r"(a_buf),    // %[a_buf]
>-    [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>-#if defined(__i386__)
>-    [width]"+m"(width)     // %[width]
>-#else
>+    [dst_ar30]"+r"(dst_ar30),  // %[dst_ar30]
>     [width]"+rm"(width)    // %[width]
>-#endif
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS_AVX2
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>   );
>-  // clang-format on
> }
>-#endif  // HAS_I422ALPHATOARGBROW_AVX2
>+#endif  // HAS_I422TOAR30ROW_AVX2
> 
>-#if defined(HAS_I422TORGBAROW_AVX2)
>+#if defined(HAS_I210TOARGBROW_AVX2)
> // 16 pixels
>-// 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 RGBA (64 bytes).
>-void OMITFP I422ToRGBARow_AVX2(const uint8* y_buf,
>-                               const uint8* u_buf,
>-                               const uint8* v_buf,
>-                               uint8* dst_argb,
>+// 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
>+void OMITFP I210ToARGBRow_AVX2(const uint16_t* y_buf,
>+                               const uint16_t* u_buf,
>+                               const uint16_t* v_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   asm volatile (
>     YUVTORGB_SETUP_AVX2(yuvconstants)
>     "sub       %[u_buf],%[v_buf]               \n"
>-    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
> 
>     LABELALIGN
>     "1:                                        \n"
>-    READYUV422_AVX2
>+    READYUV210_AVX2
>     YUVTORGB_AVX2(yuvconstants)
>-
>-    // Step 3: Weave into RGBA
>-    "vpunpcklbw %%ymm2,%%ymm1,%%ymm1           \n"
>-    "vpermq     $0xd8,%%ymm1,%%ymm1            \n"
>-    "vpunpcklbw %%ymm0,%%ymm5,%%ymm2           \n"
>-    "vpermq     $0xd8,%%ymm2,%%ymm2            \n"
>-    "vpunpcklwd %%ymm1,%%ymm2,%%ymm0           \n"
>-    "vpunpckhwd %%ymm1,%%ymm2,%%ymm1           \n"
>-    "vmovdqu    %%ymm0," MEMACCESS([dst_argb]) "\n"
>-    "vmovdqu    %%ymm1," MEMACCESS2(0x20,[dst_argb]) "\n"
>-    "lea       " MEMLEA(0x40,[dst_argb]) ",%[dst_argb] \n"
>+    STOREARGB_AVX2
>     "sub       $0x10,%[width]                  \n"
>     "jg        1b                              \n"
>+
>     "vzeroupper                                \n"
>   : [y_buf]"+r"(y_buf),    // %[y_buf]
>     [u_buf]"+r"(u_buf),    // %[u_buf]
>@@ -2235,18 +2574,143 @@ void OMITFP I422ToRGBARow_AVX2(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-  : "memory", "cc", NACL_R14 YUVTORGB_REGS_AVX2
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>     "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
> }
>-#endif  // HAS_I422TORGBAROW_AVX2
>+#endif  // HAS_I210TOARGBROW_AVX2
> 
>-#if defined(HAS_NV12TOARGBROW_AVX2)
>-// 16 pixels.
>+#if defined(HAS_I210TOAR30ROW_AVX2)
>+// 16 pixels
>+// 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 AR30 (64 bytes).
>+void OMITFP I210ToAR30Row_AVX2(const uint16_t* y_buf,
>+                               const uint16_t* u_buf,
>+                               const uint16_t* v_buf,
>+                               uint8_t* dst_ar30,
>+                               const struct YuvConstants* yuvconstants,
>+                               int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP_AVX2(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"  // AR30 constants
>+    "vpsrlw    $14,%%ymm5,%%ymm5               \n"
>+    "vpsllw    $4,%%ymm5,%%ymm5                \n"  // 2 alpha bits
>+    "vpxor     %%ymm6,%%ymm6,%%ymm6            \n"  // 0 for min
>+    "vpcmpeqb  %%ymm7,%%ymm7,%%ymm7            \n"  // 1023 for max
>+    "vpsrlw    $6,%%ymm7,%%ymm7                \n"
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUV210_AVX2
>+    YUVTORGB16_AVX2(yuvconstants)
>+    STOREAR30_AVX2
>+    "sub       $0x10,%[width]                  \n"
>+    "jg        1b                              \n"
>+
>+    "vzeroupper                                \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [dst_ar30]"+r"(dst_ar30),  // %[dst_ar30]
>+    [width]"+rm"(width)    // %[width]
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>+  );
>+}
>+#endif  // HAS_I210TOAR30ROW_AVX2
>+
>+#if defined(HAS_I422ALPHATOARGBROW_AVX2)
>+// 16 pixels
>+// 8 UV values upsampled to 16 UV, mixed with 16 Y and 16 A producing 16 ARGB.
>+void OMITFP I422AlphaToARGBRow_AVX2(const uint8_t* y_buf,
>+                                    const uint8_t* u_buf,
>+                                    const uint8_t* v_buf,
>+                                    const uint8_t* a_buf,
>+                                    uint8_t* dst_argb,
>+                                    const struct YuvConstants* yuvconstants,
>+                                    int width) {
>+  // clang-format off
>+  asm volatile (
>+    YUVTORGB_SETUP_AVX2(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUVA422_AVX2
>+    YUVTORGB_AVX2(yuvconstants)
>+    STOREARGB_AVX2
>+    "subl      $0x10,%[width]                  \n"
>+    "jg        1b                              \n"
>+    "vzeroupper                                \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [a_buf]"+r"(a_buf),    // %[a_buf]
>+    [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>+#if defined(__i386__)
>+    [width]"+m"(width)     // %[width]
>+#else
>+    [width]"+rm"(width)    // %[width]
>+#endif
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>+  );
>+  // clang-format on
>+}
>+#endif  // HAS_I422ALPHATOARGBROW_AVX2
>+
>+#if defined(HAS_I422TORGBAROW_AVX2)
>+// 16 pixels
>+// 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 RGBA (64 bytes).
>+void OMITFP I422ToRGBARow_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* u_buf,
>+                               const uint8_t* v_buf,
>+                               uint8_t* dst_argb,
>+                               const struct YuvConstants* yuvconstants,
>+                               int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP_AVX2(yuvconstants)
>+    "sub       %[u_buf],%[v_buf]               \n"
>+    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+
>+    LABELALIGN
>+    "1:                                        \n"
>+    READYUV422_AVX2
>+    YUVTORGB_AVX2(yuvconstants)
>+
>+    // Step 3: Weave into RGBA
>+    "vpunpcklbw %%ymm2,%%ymm1,%%ymm1           \n"
>+    "vpermq     $0xd8,%%ymm1,%%ymm1            \n"
>+    "vpunpcklbw %%ymm0,%%ymm5,%%ymm2           \n"
>+    "vpermq     $0xd8,%%ymm2,%%ymm2            \n"
>+    "vpunpcklwd %%ymm1,%%ymm2,%%ymm0           \n"
>+    "vpunpckhwd %%ymm1,%%ymm2,%%ymm1           \n"
>+    "vmovdqu    %%ymm0,(%[dst_argb])           \n"
>+    "vmovdqu    %%ymm1,0x20(%[dst_argb])       \n"
>+    "lea        0x40(%[dst_argb]),%[dst_argb]  \n"
>+    "sub        $0x10,%[width]                 \n"
>+    "jg         1b                             \n"
>+    "vzeroupper                                \n"
>+  : [y_buf]"+r"(y_buf),    // %[y_buf]
>+    [u_buf]"+r"(u_buf),    // %[u_buf]
>+    [v_buf]"+r"(v_buf),    // %[v_buf]
>+    [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>+    [width]"+rm"(width)    // %[width]
>+  : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>+  : "memory", "cc", YUVTORGB_REGS_AVX2
>+    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>+  );
>+}
>+#endif  // HAS_I422TORGBAROW_AVX2
>+
>+#if defined(HAS_NV12TOARGBROW_AVX2)
>+// 16 pixels.
> // 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
>-void OMITFP NV12ToARGBRow_AVX2(const uint8* y_buf,
>-                               const uint8* uv_buf,
>-                               uint8* dst_argb,
>+void OMITFP NV12ToARGBRow_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* uv_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   // clang-format off
>@@ -2267,7 +2731,7 @@ void OMITFP NV12ToARGBRow_AVX2(const uint8* y_buf,
>     [dst_argb]"+r"(dst_argb),  // %[dst_argb]
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants)  // %[yuvconstants]
>-    : "memory", "cc", YUVTORGB_REGS_AVX2  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS_AVX2
>     "xmm0", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
>@@ -2277,9 +2741,9 @@ void OMITFP NV12ToARGBRow_AVX2(const uint8* y_buf,
> #if defined(HAS_NV21TOARGBROW_AVX2)
> // 16 pixels.
> // 8 VU values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
>-void OMITFP NV21ToARGBRow_AVX2(const uint8* y_buf,
>-                               const uint8* vu_buf,
>-                               uint8* dst_argb,
>+void OMITFP NV21ToARGBRow_AVX2(const uint8_t* y_buf,
>+                               const uint8_t* vu_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   // clang-format off
>@@ -2301,7 +2765,7 @@ void OMITFP NV21ToARGBRow_AVX2(const uint8* y_buf,
>     [width]"+rm"(width)    // %[width]
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleNV21]"m"(kShuffleNV21)
>-    : "memory", "cc", YUVTORGB_REGS_AVX2  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS_AVX2
>       "xmm0", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
>@@ -2311,8 +2775,8 @@ void OMITFP NV21ToARGBRow_AVX2(const uint8* y_buf,
> #if defined(HAS_YUY2TOARGBROW_AVX2)
> // 16 pixels.
> // 8 YUY2 values with 16 Y and 8 UV producing 16 ARGB (64 bytes).
>-void OMITFP YUY2ToARGBRow_AVX2(const uint8* yuy2_buf,
>-                               uint8* dst_argb,
>+void OMITFP YUY2ToARGBRow_AVX2(const uint8_t* yuy2_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   // clang-format off
>@@ -2334,7 +2798,7 @@ void OMITFP YUY2ToARGBRow_AVX2(const uint8* yuy2_buf,
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleYUY2Y]"m"(kShuffleYUY2Y),
>     [kShuffleYUY2UV]"m"(kShuffleYUY2UV)
>-    : "memory", "cc", YUVTORGB_REGS_AVX2  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS_AVX2
>       "xmm0", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
>@@ -2344,8 +2808,8 @@ void OMITFP YUY2ToARGBRow_AVX2(const uint8* yuy2_buf,
> #if defined(HAS_UYVYTOARGBROW_AVX2)
> // 16 pixels.
> // 8 UYVY values with 16 Y and 8 UV producing 16 ARGB (64 bytes).
>-void OMITFP UYVYToARGBRow_AVX2(const uint8* uyvy_buf,
>-                               uint8* dst_argb,
>+void OMITFP UYVYToARGBRow_AVX2(const uint8_t* uyvy_buf,
>+                               uint8_t* dst_argb,
>                                const struct YuvConstants* yuvconstants,
>                                int width) {
>   // clang-format off
>@@ -2367,7 +2831,7 @@ void OMITFP UYVYToARGBRow_AVX2(const uint8* uyvy_buf,
>   : [yuvconstants]"r"(yuvconstants), // %[yuvconstants]
>     [kShuffleUYVYY]"m"(kShuffleUYVYY),
>     [kShuffleUYVYUV]"m"(kShuffleUYVYUV)
>-    : "memory", "cc", YUVTORGB_REGS_AVX2  // Does not use r14.
>+    : "memory", "cc", YUVTORGB_REGS_AVX2
>       "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>   );
>   // clang-format on
>@@ -2375,381 +2839,367 @@ void OMITFP UYVYToARGBRow_AVX2(const uint8* uyvy_buf,
> #endif  // HAS_UYVYTOARGBROW_AVX2
> 
> #ifdef HAS_I400TOARGBROW_SSE2
>-void I400ToARGBRow_SSE2(const uint8* y_buf, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "mov       $0x4a354a35,%%eax               \n"  // 4a35 = 18997 = 1.164
>-    "movd      %%eax,%%xmm2                    \n"
>-    "pshufd    $0x0,%%xmm2,%%xmm2              \n"
>-    "mov       $0x04880488,%%eax               \n"  // 0488 = 1160 = 1.164 * 16
>-    "movd      %%eax,%%xmm3                    \n"
>-    "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "pslld     $0x18,%%xmm4                    \n"
>+void I400ToARGBRow_SSE2(const uint8_t* y_buf, uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "mov       $0x4a354a35,%%eax               \n"  // 4a35 = 18997 = 1.164
>+      "movd      %%eax,%%xmm2                    \n"
>+      "pshufd    $0x0,%%xmm2,%%xmm2              \n"
>+      "mov       $0x04880488,%%eax               \n"  // 0488 = 1160 = 1.164 *
>+                                                      // 16
>+      "movd      %%eax,%%xmm3                    \n"
>+      "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "pslld     $0x18,%%xmm4                    \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    // Step 1: Scale Y contribution to 8 G values. G = (y - 16) * 1.164
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "pmulhuw   %%xmm2,%%xmm0                   \n"
>-    "psubusw   %%xmm3,%%xmm0                   \n"
>-    "psrlw     $6, %%xmm0                      \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-
>-    // Step 2: Weave into ARGB
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklwd %%xmm0,%%xmm0                   \n"
>-    "punpckhwd %%xmm1,%%xmm1                   \n"
>-    "por       %%xmm4,%%xmm0                   \n"
>-    "por       %%xmm4,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(y_buf),     // %0
>-    "+r"(dst_argb),  // %1
>-    "+rm"(width)     // %2
>-  :
>-  : "memory", "cc", "eax"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      // Step 1: Scale Y contribution to 8 G values. G = (y - 16) * 1.164
>+      "movq      (%0),%%xmm0                     \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "pmulhuw   %%xmm2,%%xmm0                   \n"
>+      "psubusw   %%xmm3,%%xmm0                   \n"
>+      "psrlw     $6, %%xmm0                      \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+
>+      // Step 2: Weave into ARGB
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklwd %%xmm0,%%xmm0                   \n"
>+      "punpckhwd %%xmm1,%%xmm1                   \n"
>+      "por       %%xmm4,%%xmm0                   \n"
>+      "por       %%xmm4,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(y_buf),     // %0
>+        "+r"(dst_argb),  // %1
>+        "+rm"(width)     // %2
>+      :
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4");
> }
> #endif  // HAS_I400TOARGBROW_SSE2
> 
> #ifdef HAS_I400TOARGBROW_AVX2
> // 16 pixels of Y converted to 16 pixels of ARGB (64 bytes).
> // note: vpunpcklbw mutates and vpackuswb unmutates.
>-void I400ToARGBRow_AVX2(const uint8* y_buf, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "mov        $0x4a354a35,%%eax              \n" // 0488 = 1160 = 1.164 * 16
>-    "vmovd      %%eax,%%xmm2                   \n"
>-    "vbroadcastss %%xmm2,%%ymm2                \n"
>-    "mov        $0x4880488,%%eax               \n" // 4a35 = 18997 = 1.164
>-    "vmovd      %%eax,%%xmm3                   \n"
>-    "vbroadcastss %%xmm3,%%ymm3                \n"
>-    "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpslld     $0x18,%%ymm4,%%ymm4            \n"
>+void I400ToARGBRow_AVX2(const uint8_t* y_buf, uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "mov        $0x4a354a35,%%eax              \n"  // 0488 = 1160 = 1.164 *
>+                                                      // 16
>+      "vmovd      %%eax,%%xmm2                   \n"
>+      "vbroadcastss %%xmm2,%%ymm2                \n"
>+      "mov        $0x4880488,%%eax               \n"  // 4a35 = 18997 = 1.164
>+      "vmovd      %%eax,%%xmm3                   \n"
>+      "vbroadcastss %%xmm3,%%ymm3                \n"
>+      "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpslld     $0x18,%%ymm4,%%ymm4            \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    // Step 1: Scale Y contribution to 16 G values. G = (y - 16) * 1.164
>-    "vmovdqu    " MEMACCESS(0) ",%%xmm0        \n"
>-    "lea        " MEMLEA(0x10,0) ",%0          \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpunpcklbw %%ymm0,%%ymm0,%%ymm0           \n"
>-    "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpsubusw   %%ymm3,%%ymm0,%%ymm0           \n"
>-    "vpsrlw     $0x6,%%ymm0,%%ymm0             \n"
>-    "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>-    "vpunpcklbw %%ymm0,%%ymm0,%%ymm1           \n"
>-    "vpermq     $0xd8,%%ymm1,%%ymm1            \n"
>-    "vpunpcklwd %%ymm1,%%ymm1,%%ymm0           \n"
>-    "vpunpckhwd %%ymm1,%%ymm1,%%ymm1           \n"
>-    "vpor       %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpor       %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "vmovdqu    %%ymm1," MEMACCESS2(0x20,1) "  \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub        $0x10,%2                       \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(y_buf),     // %0
>-    "+r"(dst_argb),  // %1
>-    "+rm"(width)     // %2
>-  :
>-  : "memory", "cc", "eax"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      // Step 1: Scale Y contribution to 16 G values. G = (y - 16) * 1.164
>+      "vmovdqu    (%0),%%xmm0                    \n"
>+      "lea        0x10(%0),%0                    \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpunpcklbw %%ymm0,%%ymm0,%%ymm0           \n"
>+      "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpsubusw   %%ymm3,%%ymm0,%%ymm0           \n"
>+      "vpsrlw     $0x6,%%ymm0,%%ymm0             \n"
>+      "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>+      "vpunpcklbw %%ymm0,%%ymm0,%%ymm1           \n"
>+      "vpermq     $0xd8,%%ymm1,%%ymm1            \n"
>+      "vpunpcklwd %%ymm1,%%ymm1,%%ymm0           \n"
>+      "vpunpckhwd %%ymm1,%%ymm1,%%ymm1           \n"
>+      "vpor       %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpor       %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "vmovdqu    %%ymm1,0x20(%1)                \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub        $0x10,%2                       \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(y_buf),     // %0
>+        "+r"(dst_argb),  // %1
>+        "+rm"(width)     // %2
>+      :
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4");
> }
> #endif  // HAS_I400TOARGBROW_AVX2
> 
> #ifdef HAS_MIRRORROW_SSSE3
> // Shuffle table for reversing the bytes.
>-static uvec8 kShuffleMirror = {15u, 14u, 13u, 12u, 11u, 10u, 9u, 8u,
>-                               7u,  6u,  5u,  4u,  3u,  2u,  1u, 0u};
>+static const uvec8 kShuffleMirror = {15u, 14u, 13u, 12u, 11u, 10u, 9u, 8u,
>+                                     7u,  6u,  5u,  4u,  3u,  2u,  1u, 0u};
> 
>-void MirrorRow_SSSE3(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_SSSE3(const uint8_t* src, uint8_t* dst, int width) {
>   intptr_t temp_width = (intptr_t)(width);
>-  asm volatile (
>-    "movdqa    %3,%%xmm5                       \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    MEMOPREG(movdqu,-0x10,0,2,1,xmm0)          //  movdqu -0x10(%0,%2),%%xmm0
>-    "pshufb    %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(temp_width)  // %2
>-  : "m"(kShuffleMirror) // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm5"
>-  );
>+      "movdqa    %3,%%xmm5                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    -0x10(%0,%2,1),%%xmm0           \n"
>+      "pshufb    %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),           // %0
>+        "+r"(dst),           // %1
>+        "+r"(temp_width)     // %2
>+      : "m"(kShuffleMirror)  // %3
>+      : "memory", "cc", "xmm0", "xmm5");
> }
> #endif  // HAS_MIRRORROW_SSSE3
> 
> #ifdef HAS_MIRRORROW_AVX2
>-void MirrorRow_AVX2(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>   intptr_t temp_width = (intptr_t)(width);
>-  asm volatile (
>-    "vbroadcastf128 %3,%%ymm5                  \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    MEMOPREG(vmovdqu,-0x20,0,2,1,ymm0)         //  vmovdqu -0x20(%0,%2),%%ymm0
>-    "vpshufb    %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0x4e,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(temp_width)  // %2
>-  : "m"(kShuffleMirror) // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm5"
>-  );
>+      "vbroadcastf128 %3,%%ymm5                  \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    -0x20(%0,%2,1),%%ymm0          \n"
>+      "vpshufb    %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0x4e,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),           // %0
>+        "+r"(dst),           // %1
>+        "+r"(temp_width)     // %2
>+      : "m"(kShuffleMirror)  // %3
>+      : "memory", "cc", "xmm0", "xmm5");
> }
> #endif  // HAS_MIRRORROW_AVX2
> 
> #ifdef HAS_MIRRORUVROW_SSSE3
> // Shuffle table for reversing the bytes of UV channels.
>-static uvec8 kShuffleMirrorUV = {14u, 12u, 10u, 8u, 6u, 4u, 2u, 0u,
>-                                 15u, 13u, 11u, 9u, 7u, 5u, 3u, 1u};
>-void MirrorUVRow_SSSE3(const uint8* src,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+static const uvec8 kShuffleMirrorUV = {14u, 12u, 10u, 8u, 6u, 4u, 2u, 0u,
>+                                       15u, 13u, 11u, 9u, 7u, 5u, 3u, 1u};
>+void MirrorUVRow_SSSE3(const uint8_t* src,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>   intptr_t temp_width = (intptr_t)(width);
>-  asm volatile (
>-    "movdqa    %4,%%xmm1                       \n"
>-    "lea       " MEMLEA4(-0x10,0,3,2) ",%0     \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "movdqa    %4,%%xmm1                       \n"
>+      "lea       -0x10(%0,%3,2),%0               \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(-0x10,0) ",%0          \n"
>-    "pshufb    %%xmm1,%%xmm0                   \n"
>-    "movlpd    %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movhpd,xmm0,0x00,1,2,1)           //  movhpd    %%xmm0,(%1,%2)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $8,%3                           \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),      // %0
>-    "+r"(dst_u),    // %1
>-    "+r"(dst_v),    // %2
>-    "+r"(temp_width)  // %3
>-  : "m"(kShuffleMirrorUV)  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "lea       -0x10(%0),%0                    \n"
>+      "pshufb    %%xmm1,%%xmm0                   \n"
>+      "movlpd    %%xmm0,(%1)                     \n"
>+      "movhpd    %%xmm0,0x00(%1,%2,1)            \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $8,%3                           \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),             // %0
>+        "+r"(dst_u),           // %1
>+        "+r"(dst_v),           // %2
>+        "+r"(temp_width)       // %3
>+      : "m"(kShuffleMirrorUV)  // %4
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_MIRRORUVROW_SSSE3
> 
> #ifdef HAS_ARGBMIRRORROW_SSE2
> 
>-void ARGBMirrorRow_SSE2(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>   intptr_t temp_width = (intptr_t)(width);
>-  asm volatile (
>-    "lea       " MEMLEA4(-0x10,0,2,4) ",%0     \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "pshufd    $0x1b,%%xmm0,%%xmm0             \n"
>-    "lea       " MEMLEA(-0x10,0) ",%0          \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(temp_width)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0"
>-  );
>+      "lea       -0x10(%0,%2,4),%0               \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "pshufd    $0x1b,%%xmm0,%%xmm0             \n"
>+      "lea       -0x10(%0),%0                    \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),        // %0
>+        "+r"(dst),        // %1
>+        "+r"(temp_width)  // %2
>+      :
>+      : "memory", "cc", "xmm0");
> }
> #endif  // HAS_ARGBMIRRORROW_SSE2
> 
> #ifdef HAS_ARGBMIRRORROW_AVX2
> // Shuffle table for reversing the bytes.
> static const ulvec32 kARGBShuffleMirror_AVX2 = {7u, 6u, 5u, 4u, 3u, 2u, 1u, 0u};
>-void ARGBMirrorRow_AVX2(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>   intptr_t temp_width = (intptr_t)(width);
>-  asm volatile (
>-    "vmovdqu    %3,%%ymm5                      \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    VMEMOPREG(vpermd,-0x20,0,2,4,ymm5,ymm0) // vpermd -0x20(%0,%2,4),ymm5,ymm0
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "sub        $0x8,%2                        \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),  // %0
>-    "+r"(dst),  // %1
>-    "+r"(temp_width)  // %2
>-  : "m"(kARGBShuffleMirror_AVX2) // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm5"
>-  );
>+      "vmovdqu    %3,%%ymm5                      \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vpermd    -0x20(%0,%2,4),%%ymm5,%%ymm0    \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x8,%2                        \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),                    // %0
>+        "+r"(dst),                    // %1
>+        "+r"(temp_width)              // %2
>+      : "m"(kARGBShuffleMirror_AVX2)  // %3
>+      : "memory", "cc", "xmm0", "xmm5");
> }
> #endif  // HAS_ARGBMIRRORROW_AVX2
> 
> #ifdef HAS_SPLITUVROW_AVX2
>-void SplitUVRow_AVX2(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_AVX2(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  asm volatile (
>-    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>-    "vpsrlw     $0x8,%%ymm5,%%ymm5             \n"
>-    "sub        %1,%2                          \n"
>+  asm volatile(
>+      "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+      "vpsrlw     $0x8,%%ymm5,%%ymm5             \n"
>+      "sub        %1,%2                          \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpsrlw     $0x8,%%ymm0,%%ymm2             \n"
>-    "vpsrlw     $0x8,%%ymm1,%%ymm3             \n"
>-    "vpand      %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpand      %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpackuswb  %%ymm3,%%ymm2,%%ymm2           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpermq     $0xd8,%%ymm2,%%ymm2            \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    MEMOPMEM(vmovdqu,ymm2,0x00,1,2,1)           //  vmovdqu %%ymm2,(%1,%2)
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "sub        $0x20,%3                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_uv),     // %0
>-    "+r"(dst_u),      // %1
>-    "+r"(dst_v),      // %2
>-    "+r"(width)         // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpsrlw     $0x8,%%ymm0,%%ymm2             \n"
>+      "vpsrlw     $0x8,%%ymm1,%%ymm3             \n"
>+      "vpand      %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpand      %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpackuswb  %%ymm3,%%ymm2,%%ymm2           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpermq     $0xd8,%%ymm2,%%ymm2            \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "vmovdqu    %%ymm2,0x00(%1,%2,1)            \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x20,%3                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_uv),  // %0
>+        "+r"(dst_u),   // %1
>+        "+r"(dst_v),   // %2
>+        "+r"(width)    // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SPLITUVROW_AVX2
> 
> #ifdef HAS_SPLITUVROW_SSE2
>-void SplitUVRow_SSE2(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_SSE2(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  asm volatile (
>-    "pcmpeqb    %%xmm5,%%xmm5                  \n"
>-    "psrlw      $0x8,%%xmm5                    \n"
>-    "sub        %1,%2                          \n"
>+  asm volatile(
>+      "pcmpeqb    %%xmm5,%%xmm5                  \n"
>+      "psrlw      $0x8,%%xmm5                    \n"
>+      "sub        %1,%2                          \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS2(0x10,0) ",%%xmm1  \n"
>-    "lea        " MEMLEA(0x20,0) ",%0          \n"
>-    "movdqa     %%xmm0,%%xmm2                  \n"
>-    "movdqa     %%xmm1,%%xmm3                  \n"
>-    "pand       %%xmm5,%%xmm0                  \n"
>-    "pand       %%xmm5,%%xmm1                  \n"
>-    "packuswb   %%xmm1,%%xmm0                  \n"
>-    "psrlw      $0x8,%%xmm2                    \n"
>-    "psrlw      $0x8,%%xmm3                    \n"
>-    "packuswb   %%xmm3,%%xmm2                  \n"
>-    "movdqu     %%xmm0," MEMACCESS(1) "        \n"
>-    MEMOPMEM(movdqu,xmm2,0x00,1,2,1)           //  movdqu     %%xmm2,(%1,%2)
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-    "sub        $0x10,%3                       \n"
>-    "jg         1b                             \n"
>-  : "+r"(src_uv),     // %0
>-    "+r"(dst_u),      // %1
>-    "+r"(dst_v),      // %2
>-    "+r"(width)         // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     0x10(%0),%%xmm1                \n"
>+      "lea        0x20(%0),%0                    \n"
>+      "movdqa     %%xmm0,%%xmm2                  \n"
>+      "movdqa     %%xmm1,%%xmm3                  \n"
>+      "pand       %%xmm5,%%xmm0                  \n"
>+      "pand       %%xmm5,%%xmm1                  \n"
>+      "packuswb   %%xmm1,%%xmm0                  \n"
>+      "psrlw      $0x8,%%xmm2                    \n"
>+      "psrlw      $0x8,%%xmm3                    \n"
>+      "packuswb   %%xmm3,%%xmm2                  \n"
>+      "movdqu     %%xmm0,(%1)                    \n"
>+      "movdqu    %%xmm2,0x00(%1,%2,1)            \n"
>+      "lea        0x10(%1),%1                    \n"
>+      "sub        $0x10,%3                       \n"
>+      "jg         1b                             \n"
>+      : "+r"(src_uv),  // %0
>+        "+r"(dst_u),   // %1
>+        "+r"(dst_v),   // %2
>+        "+r"(width)    // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SPLITUVROW_SSE2
> 
> #ifdef HAS_MERGEUVROW_AVX2
>-void MergeUVRow_AVX2(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_AVX2(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    MEMOPREG(vmovdqu,0x00,0,1,1,ymm1)           //  vmovdqu (%0,%1,1),%%ymm1
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "vpunpcklbw %%ymm1,%%ymm0,%%ymm2           \n"
>-    "vpunpckhbw %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vextractf128 $0x0,%%ymm2," MEMACCESS(2) " \n"
>-    "vextractf128 $0x0,%%ymm0," MEMACCESS2(0x10,2) "\n"
>-    "vextractf128 $0x1,%%ymm2," MEMACCESS2(0x20,2) "\n"
>-    "vextractf128 $0x1,%%ymm0," MEMACCESS2(0x30,2) "\n"
>-    "lea       " MEMLEA(0x40,2) ",%2           \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_u),     // %0
>-    "+r"(src_v),     // %1
>-    "+r"(dst_uv),    // %2
>-    "+r"(width)      // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2"
>-  );
>+      "sub       %0,%1                           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu    0x00(%0,%1,1),%%ymm1           \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "vpunpcklbw %%ymm1,%%ymm0,%%ymm2           \n"
>+      "vpunpckhbw %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vextractf128 $0x0,%%ymm2,(%2)             \n"
>+      "vextractf128 $0x0,%%ymm0,0x10(%2)         \n"
>+      "vextractf128 $0x1,%%ymm2,0x20(%2)         \n"
>+      "vextractf128 $0x1,%%ymm0,0x30(%2)         \n"
>+      "lea       0x40(%2),%2                     \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_u),   // %0
>+        "+r"(src_v),   // %1
>+        "+r"(dst_uv),  // %2
>+        "+r"(width)    // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
> #endif  // HAS_MERGEUVROW_AVX2
> 
> #ifdef HAS_MERGEUVROW_SSE2
>-void MergeUVRow_SSE2(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_SSE2(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,1,1,xmm1)           //  movdqu    (%0,%1,1),%%xmm1
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "punpcklbw %%xmm1,%%xmm0                   \n"
>-    "punpckhbw %%xmm1,%%xmm2                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x10,2) "   \n"
>-    "lea       " MEMLEA(0x20,2) ",%2           \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_u),     // %0
>-    "+r"(src_v),     // %1
>-    "+r"(dst_uv),    // %2
>-    "+r"(width)      // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2"
>-  );
>+      "sub       %0,%1                           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%1,1),%%xmm1            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "punpcklbw %%xmm1,%%xmm0                   \n"
>+      "punpckhbw %%xmm1,%%xmm2                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "movdqu    %%xmm2,0x10(%2)                 \n"
>+      "lea       0x20(%2),%2                     \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_u),   // %0
>+        "+r"(src_v),   // %1
>+        "+r"(dst_uv),  // %2
>+        "+r"(width)    // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
> #endif  // HAS_MERGEUVROW_SSE2
> 
>@@ -2759,9 +3209,9 @@ void MergeUVRow_SSE2(const uint8* src_u,
> // 16 = 12 bits
> // 1 = 16 bits
> #ifdef HAS_MERGEUVROW_16_AVX2
>-void MergeUVRow_16_AVX2(const uint16* src_u,
>-                        const uint16* src_v,
>-                        uint16* dst_uv,
>+void MergeUVRow_16_AVX2(const uint16_t* src_u,
>+                        const uint16_t* src_v,
>+                        uint16_t* dst_uv,
>                         int scale,
>                         int width) {
>   // clang-format off
>@@ -2800,9 +3250,14 @@ void MergeUVRow_16_AVX2(const uint16* src_u,
> }
> #endif  // HAS_MERGEUVROW_AVX2
> 
>+// Use scale to convert lsb formats to msb, depending how many bits there are:
>+// 128 = 9 bits
>+// 64 = 10 bits
>+// 16 = 12 bits
>+// 1 = 16 bits
> #ifdef HAS_MULTIPLYROW_16_AVX2
>-void MultiplyRow_16_AVX2(const uint16* src_y,
>-                         uint16* dst_y,
>+void MultiplyRow_16_AVX2(const uint16_t* src_y,
>+                         uint16_t* dst_y,
>                          int scale,
>                          int width) {
>   // clang-format off
>@@ -2834,367 +3289,507 @@ void MultiplyRow_16_AVX2(const uint16* src_y,
> }
> #endif  // HAS_MULTIPLYROW_16_AVX2
> 
>-#ifdef HAS_SPLITRGBROW_SSSE3
>-
>-// Shuffle table for converting RGB to Planar.
>-static uvec8 kShuffleMaskRGBToR0 = {0u,   3u,   6u,   9u,   12u,  15u,
>-                                    128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToR1 = {128u, 128u, 128u, 128u, 128u, 128u,
>-                                    2u,   5u,   8u,   11u,  14u,  128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToR2 = {128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u, 128u, 1u,
>-                                    4u,   7u,   10u,  13u};
>-
>-static uvec8 kShuffleMaskRGBToG0 = {1u,   4u,   7u,   10u,  13u,  128u,
>-                                    128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToG1 = {128u, 128u, 128u, 128u, 128u, 0u,
>-                                    3u,   6u,   9u,   12u,  15u,  128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToG2 = {128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u, 128u, 2u,
>-                                    5u,   8u,   11u,  14u};
>-
>-static uvec8 kShuffleMaskRGBToB0 = {2u,   5u,   8u,   11u,  14u,  128u,
>-                                    128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToB1 = {128u, 128u, 128u, 128u, 128u, 1u,
>-                                    4u,   7u,   10u,  13u,  128u, 128u,
>-                                    128u, 128u, 128u, 128u};
>-static uvec8 kShuffleMaskRGBToB2 = {128u, 128u, 128u, 128u, 128u, 128u,
>-                                    128u, 128u, 128u, 128u, 0u,   3u,
>-                                    6u,   9u,   12u,  15u};
>-
>-void SplitRGBRow_SSSE3(const uint8* src_rgb,
>-                       uint8* dst_r,
>-                       uint8* dst_g,
>-                       uint8* dst_b,
>-                       int width) {
>+// Use scale to convert lsb formats to msb, depending how many bits there are:
>+// 32768 = 9 bits
>+// 16384 = 10 bits
>+// 4096 = 12 bits
>+// 256 = 16 bits
>+void Convert16To8Row_SSSE3(const uint16_t* src_y,
>+                           uint8_t* dst_y,
>+                           int scale,
>+                           int width) {
>+  // clang-format off
>   asm volatile (
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS2(0x10,0) ",%%xmm1  \n"
>-    "movdqu     " MEMACCESS2(0x20,0) ",%%xmm2  \n"
>-    "pshufb     %5, %%xmm0                     \n"
>-    "pshufb     %6, %%xmm1                     \n"
>-    "pshufb     %7, %%xmm2                     \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS2(0x10,0) ",%%xmm1  \n"
>-    "movdqu     " MEMACCESS2(0x20,0) ",%%xmm2  \n"
>-    "pshufb     %8, %%xmm0                     \n"
>-    "pshufb     %9, %%xmm1                     \n"
>-    "pshufb     %10, %%xmm2                    \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS(2) "        \n"
>-    "lea        " MEMLEA(0x10,2) ",%2          \n"
>-
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS2(0x10,0) ",%%xmm1  \n"
>-    "movdqu     " MEMACCESS2(0x20,0) ",%%xmm2  \n"
>-    "pshufb     %11, %%xmm0                    \n"
>-    "pshufb     %12, %%xmm1                    \n"
>-    "pshufb     %13, %%xmm2                    \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS(3) "        \n"
>-    "lea        " MEMLEA(0x10,3) ",%3          \n"
>-    "lea        " MEMLEA(0x30,0) ",%0          \n"
>-    "sub        $0x10,%4                       \n"
>-    "jg         1b                             \n"
>-  : "+r"(src_rgb),              // %0
>-    "+r"(dst_r),                // %1
>-    "+r"(dst_g),                // %2
>-    "+r"(dst_b),                // %3
>-    "+r"(width)                 // %4
>-  : "m"(kShuffleMaskRGBToR0),   // %5
>-    "m"(kShuffleMaskRGBToR1),   // %6
>-    "m"(kShuffleMaskRGBToR2),   // %7
>-    "m"(kShuffleMaskRGBToG0),   // %8
>-    "m"(kShuffleMaskRGBToG1),   // %9
>-    "m"(kShuffleMaskRGBToG2),   // %10
>-    "m"(kShuffleMaskRGBToB0),   // %11
>-    "m"(kShuffleMaskRGBToB1),   // %12
>-    "m"(kShuffleMaskRGBToB2)    // %13
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2"
>-  );
>-}
>-#endif  // HAS_SPLITRGBROW_SSSE3
>-
>-#ifdef HAS_MERGERGBROW_SSSE3
>+    "movd      %3,%%xmm2                      \n"
>+    "punpcklwd %%xmm2,%%xmm2                  \n"
>+    "pshufd    $0x0,%%xmm2,%%xmm2             \n"
>+
>+    // 32 pixels per loop.
>+    LABELALIGN
>+    "1:                                       \n"
>+    "movdqu    (%0),%%xmm0                    \n"
>+    "movdqu    0x10(%0),%%xmm1                \n"
>+    "add       $0x20,%0                       \n"
>+    "pmulhuw   %%xmm2,%%xmm0                  \n"
>+    "pmulhuw   %%xmm2,%%xmm1                  \n"
>+    "packuswb  %%xmm1,%%xmm0                  \n"
>+    "movdqu    %%xmm0,(%1)                    \n"
>+    "add       $0x10,%1                       \n"
>+    "sub       $0x10,%2                       \n"
>+    "jg        1b                             \n"
>+  : "+r"(src_y),   // %0
>+    "+r"(dst_y),   // %1
>+    "+r"(width)    // %2
>+  : "r"(scale)     // %3
>+  : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+  // clang-format on
>+}
> 
>-// Shuffle table for converting RGB to Planar.
>-static uvec8 kShuffleMaskRToRGB0 = {0u, 128u, 128u, 1u, 128u, 128u,
>-                                    2u, 128u, 128u, 3u, 128u, 128u,
>-                                    4u, 128u, 128u, 5u};
>-static uvec8 kShuffleMaskGToRGB0 = {128u, 0u, 128u, 128u, 1u, 128u,
>-                                    128u, 2u, 128u, 128u, 3u, 128u,
>-                                    128u, 4u, 128u, 128u};
>-static uvec8 kShuffleMaskBToRGB0 = {128u, 128u, 0u, 128u, 128u, 1u,
>-                                    128u, 128u, 2u, 128u, 128u, 3u,
>-                                    128u, 128u, 4u, 128u};
>-
>-static uvec8 kShuffleMaskGToRGB1 = {5u, 128u, 128u, 6u, 128u, 128u,
>-                                    7u, 128u, 128u, 8u, 128u, 128u,
>-                                    9u, 128u, 128u, 10u};
>-static uvec8 kShuffleMaskBToRGB1 = {128u, 5u, 128u, 128u, 6u, 128u,
>-                                    128u, 7u, 128u, 128u, 8u, 128u,
>-                                    128u, 9u, 128u, 128u};
>-static uvec8 kShuffleMaskRToRGB1 = {128u, 128u, 6u,  128u, 128u, 7u,
>-                                    128u, 128u, 8u,  128u, 128u, 9u,
>-                                    128u, 128u, 10u, 128u};
>-
>-static uvec8 kShuffleMaskBToRGB2 = {10u, 128u, 128u, 11u, 128u, 128u,
>-                                    12u, 128u, 128u, 13u, 128u, 128u,
>-                                    14u, 128u, 128u, 15u};
>-static uvec8 kShuffleMaskRToRGB2 = {128u, 11u, 128u, 128u, 12u, 128u,
>-                                    128u, 13u, 128u, 128u, 14u, 128u,
>-                                    128u, 15u, 128u, 128u};
>-static uvec8 kShuffleMaskGToRGB2 = {128u, 128u, 11u, 128u, 128u, 12u,
>-                                    128u, 128u, 13u, 128u, 128u, 14u,
>-                                    128u, 128u, 15u, 128u};
>-
>-void MergeRGBRow_SSSE3(const uint8* src_r,
>-                       const uint8* src_g,
>-                       const uint8* src_b,
>-                       uint8* dst_rgb,
>-                       int width) {
>+#ifdef HAS_CONVERT16TO8ROW_AVX2
>+void Convert16To8Row_AVX2(const uint16_t* src_y,
>+                          uint8_t* dst_y,
>+                          int scale,
>+                          int width) {
>+  // clang-format off
>   asm volatile (
>+    "vmovd      %3,%%xmm2                      \n"
>+    "vpunpcklwd %%xmm2,%%xmm2,%%xmm2           \n"
>+    "vbroadcastss %%xmm2,%%ymm2                \n"
>+
>+    // 32 pixels per loop.
>     LABELALIGN
>     "1:                                        \n"
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS(1) ",%%xmm1        \n"
>-    "movdqu     " MEMACCESS(2) ",%%xmm2        \n"
>-    "pshufb     %5, %%xmm0                     \n"
>-    "pshufb     %6, %%xmm1                     \n"
>-    "pshufb     %7, %%xmm2                     \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS(3) "        \n"
>-
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS(1) ",%%xmm1        \n"
>-    "movdqu     " MEMACCESS(2) ",%%xmm2        \n"
>-    "pshufb     %8, %%xmm0                     \n"
>-    "pshufb     %9, %%xmm1                     \n"
>-    "pshufb     %10, %%xmm2                    \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS2(16, 3) "   \n"
>-
>-    "movdqu     " MEMACCESS(0) ",%%xmm0        \n"
>-    "movdqu     " MEMACCESS(1) ",%%xmm1        \n"
>-    "movdqu     " MEMACCESS(2) ",%%xmm2        \n"
>-    "pshufb     %11, %%xmm0                    \n"
>-    "pshufb     %12, %%xmm1                    \n"
>-    "pshufb     %13, %%xmm2                    \n"
>-    "por        %%xmm1,%%xmm0                  \n"
>-    "por        %%xmm2,%%xmm0                  \n"
>-    "movdqu     %%xmm0," MEMACCESS2(32, 3) "   \n"
>-
>-    "lea        " MEMLEA(0x10,0) ",%0          \n"
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-    "lea        " MEMLEA(0x10,2) ",%2          \n"
>-    "lea        " MEMLEA(0x30,3) ",%3          \n"
>-    "sub        $0x10,%4                       \n"
>-    "jg         1b                             \n"
>-  : "+r"(src_r),                // %0
>-    "+r"(src_g),                // %1
>-    "+r"(src_b),                // %2
>-    "+r"(dst_rgb),              // %3
>-    "+r"(width)                 // %4
>-  : "m"(kShuffleMaskRToRGB0),   // %5
>-    "m"(kShuffleMaskGToRGB0),   // %6
>-    "m"(kShuffleMaskBToRGB0),   // %7
>-    "m"(kShuffleMaskRToRGB1),   // %8
>-    "m"(kShuffleMaskGToRGB1),   // %9
>-    "m"(kShuffleMaskBToRGB1),   // %10
>-    "m"(kShuffleMaskRToRGB2),   // %11
>-    "m"(kShuffleMaskGToRGB2),   // %12
>-    "m"(kShuffleMaskBToRGB2)    // %13
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2"
>-  );
>+    "vmovdqu   (%0),%%ymm0                     \n"
>+    "vmovdqu   0x20(%0),%%ymm1                 \n"
>+    "add       $0x40,%0                        \n"
>+    "vpmulhuw  %%ymm2,%%ymm0,%%ymm0            \n"
>+    "vpmulhuw  %%ymm2,%%ymm1,%%ymm1            \n"
>+    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"  // mutates
>+    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+    "vmovdqu   %%ymm0,(%1)                     \n"
>+    "add       $0x20,%1                        \n"
>+    "sub       $0x20,%2                        \n"
>+    "jg        1b                              \n"
>+    "vzeroupper                                \n"
>+  : "+r"(src_y),   // %0
>+    "+r"(dst_y),   // %1
>+    "+r"(width)    // %2
>+  : "r"(scale)     // %3
>+  : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+  // clang-format on
>+}
>+#endif  // HAS_CONVERT16TO8ROW_AVX2
>+
>+// Use scale to convert to lsb formats depending how many bits there are:
>+// 512 = 9 bits
>+// 1024 = 10 bits
>+// 4096 = 12 bits
>+// TODO(fbarchard): reduce to SSE2
>+void Convert8To16Row_SSE2(const uint8_t* src_y,
>+                          uint16_t* dst_y,
>+                          int scale,
>+                          int width) {
>+  // clang-format off
>+  asm volatile (
>+    "movd      %3,%%xmm2                      \n"
>+    "punpcklwd %%xmm2,%%xmm2                  \n"
>+    "pshufd    $0x0,%%xmm2,%%xmm2             \n"
>+
>+    // 32 pixels per loop.
>+    LABELALIGN
>+    "1:                                       \n"
>+    "movdqu    (%0),%%xmm0                    \n"
>+    "movdqa    %%xmm0,%%xmm1                  \n"
>+    "punpcklbw %%xmm0,%%xmm0                  \n"
>+    "punpckhbw %%xmm1,%%xmm1                  \n"
>+    "add       $0x10,%0                       \n"
>+    "pmulhuw   %%xmm2,%%xmm0                  \n"
>+    "pmulhuw   %%xmm2,%%xmm1                  \n"
>+    "movdqu    %%xmm0,(%1)                    \n"
>+    "movdqu    %%xmm1,0x10(%1)                \n"
>+    "add       $0x20,%1                       \n"
>+    "sub       $0x10,%2                       \n"
>+    "jg        1b                             \n"
>+  : "+r"(src_y),   // %0
>+    "+r"(dst_y),   // %1
>+    "+r"(width)    // %2
>+  : "r"(scale)     // %3
>+  : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+  // clang-format on
> }
>-#endif  // HAS_MERGERGBROW_SSSE3
> 
>-#ifdef HAS_COPYROW_SSE2
>-void CopyRow_SSE2(const uint8* src, uint8* dst, int count) {
>+#ifdef HAS_CONVERT8TO16ROW_AVX2
>+void Convert8To16Row_AVX2(const uint8_t* src_y,
>+                          uint16_t* dst_y,
>+                          int scale,
>+                          int width) {
>+  // clang-format off
>   asm volatile (
>-    "test       $0xf,%0                        \n"
>-    "jne        2f                             \n"
>-    "test       $0xf,%1                        \n"
>-    "jne        2f                             \n"
>+    "vmovd      %3,%%xmm2                      \n"
>+    "vpunpcklwd %%xmm2,%%xmm2,%%xmm2           \n"
>+    "vbroadcastss %%xmm2,%%ymm2                \n"
> 
>+    // 32 pixels per loop.
>     LABELALIGN
>     "1:                                        \n"
>-    "movdqa    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqa    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "movdqa    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqa    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>+    "vmovdqu   (%0),%%ymm0                     \n"
>+    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+    "add       $0x20,%0                        \n"
>+    "vpunpckhbw %%ymm0,%%ymm0,%%ymm1           \n"
>+    "vpunpcklbw %%ymm0,%%ymm0,%%ymm0           \n"
>+    "vpmulhuw  %%ymm2,%%ymm0,%%ymm0            \n"
>+    "vpmulhuw  %%ymm2,%%ymm1,%%ymm1            \n"
>+    "vmovdqu   %%ymm0,(%1)                     \n"
>+    "vmovdqu   %%ymm1,0x20(%1)                 \n"
>+    "add       $0x40,%1                        \n"
>     "sub       $0x20,%2                        \n"
>     "jg        1b                              \n"
>-    "jmp       9f                              \n"
>+    "vzeroupper                                \n"
>+  : "+r"(src_y),   // %0
>+    "+r"(dst_y),   // %1
>+    "+r"(width)    // %2
>+  : "r"(scale)     // %3
>+  : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+  // clang-format on
>+}
>+#endif  // HAS_CONVERT8TO16ROW_AVX2
> 
>-    LABELALIGN
>-  "2:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        2b                              \n"
>-  "9:                                          \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(count)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+#ifdef HAS_SPLITRGBROW_SSSE3
>+
>+// Shuffle table for converting RGB to Planar.
>+static const uvec8 kShuffleMaskRGBToR0 = {0u,   3u,   6u,   9u,   12u,  15u,
>+                                          128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToR1 = {128u, 128u, 128u, 128u, 128u, 128u,
>+                                          2u,   5u,   8u,   11u,  14u,  128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToR2 = {128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u, 128u, 1u,
>+                                          4u,   7u,   10u,  13u};
>+
>+static const uvec8 kShuffleMaskRGBToG0 = {1u,   4u,   7u,   10u,  13u,  128u,
>+                                          128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToG1 = {128u, 128u, 128u, 128u, 128u, 0u,
>+                                          3u,   6u,   9u,   12u,  15u,  128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToG2 = {128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u, 128u, 2u,
>+                                          5u,   8u,   11u,  14u};
>+
>+static const uvec8 kShuffleMaskRGBToB0 = {2u,   5u,   8u,   11u,  14u,  128u,
>+                                          128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToB1 = {128u, 128u, 128u, 128u, 128u, 1u,
>+                                          4u,   7u,   10u,  13u,  128u, 128u,
>+                                          128u, 128u, 128u, 128u};
>+static const uvec8 kShuffleMaskRGBToB2 = {128u, 128u, 128u, 128u, 128u, 128u,
>+                                          128u, 128u, 128u, 128u, 0u,   3u,
>+                                          6u,   9u,   12u,  15u};
>+
>+void SplitRGBRow_SSSE3(const uint8_t* src_rgb,
>+                       uint8_t* dst_r,
>+                       uint8_t* dst_g,
>+                       uint8_t* dst_b,
>+                       int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     0x10(%0),%%xmm1                \n"
>+      "movdqu     0x20(%0),%%xmm2                \n"
>+      "pshufb     %5, %%xmm0                     \n"
>+      "pshufb     %6, %%xmm1                     \n"
>+      "pshufb     %7, %%xmm2                     \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,(%1)                    \n"
>+      "lea        0x10(%1),%1                    \n"
>+
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     0x10(%0),%%xmm1                \n"
>+      "movdqu     0x20(%0),%%xmm2                \n"
>+      "pshufb     %8, %%xmm0                     \n"
>+      "pshufb     %9, %%xmm1                     \n"
>+      "pshufb     %10, %%xmm2                    \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,(%2)                    \n"
>+      "lea        0x10(%2),%2                    \n"
>+
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     0x10(%0),%%xmm1                \n"
>+      "movdqu     0x20(%0),%%xmm2                \n"
>+      "pshufb     %11, %%xmm0                    \n"
>+      "pshufb     %12, %%xmm1                    \n"
>+      "pshufb     %13, %%xmm2                    \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,(%3)                    \n"
>+      "lea        0x10(%3),%3                    \n"
>+      "lea        0x30(%0),%0                    \n"
>+      "sub        $0x10,%4                       \n"
>+      "jg         1b                             \n"
>+      : "+r"(src_rgb),             // %0
>+        "+r"(dst_r),               // %1
>+        "+r"(dst_g),               // %2
>+        "+r"(dst_b),               // %3
>+        "+r"(width)                // %4
>+      : "m"(kShuffleMaskRGBToR0),  // %5
>+        "m"(kShuffleMaskRGBToR1),  // %6
>+        "m"(kShuffleMaskRGBToR2),  // %7
>+        "m"(kShuffleMaskRGBToG0),  // %8
>+        "m"(kShuffleMaskRGBToG1),  // %9
>+        "m"(kShuffleMaskRGBToG2),  // %10
>+        "m"(kShuffleMaskRGBToB0),  // %11
>+        "m"(kShuffleMaskRGBToB1),  // %12
>+        "m"(kShuffleMaskRGBToB2)   // %13
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+}
>+#endif  // HAS_SPLITRGBROW_SSSE3
>+
>+#ifdef HAS_MERGERGBROW_SSSE3
>+
>+// Shuffle table for converting RGB to Planar.
>+static const uvec8 kShuffleMaskRToRGB0 = {0u, 128u, 128u, 1u, 128u, 128u,
>+                                          2u, 128u, 128u, 3u, 128u, 128u,
>+                                          4u, 128u, 128u, 5u};
>+static const uvec8 kShuffleMaskGToRGB0 = {128u, 0u, 128u, 128u, 1u, 128u,
>+                                          128u, 2u, 128u, 128u, 3u, 128u,
>+                                          128u, 4u, 128u, 128u};
>+static const uvec8 kShuffleMaskBToRGB0 = {128u, 128u, 0u, 128u, 128u, 1u,
>+                                          128u, 128u, 2u, 128u, 128u, 3u,
>+                                          128u, 128u, 4u, 128u};
>+
>+static const uvec8 kShuffleMaskGToRGB1 = {5u, 128u, 128u, 6u, 128u, 128u,
>+                                          7u, 128u, 128u, 8u, 128u, 128u,
>+                                          9u, 128u, 128u, 10u};
>+static const uvec8 kShuffleMaskBToRGB1 = {128u, 5u, 128u, 128u, 6u, 128u,
>+                                          128u, 7u, 128u, 128u, 8u, 128u,
>+                                          128u, 9u, 128u, 128u};
>+static const uvec8 kShuffleMaskRToRGB1 = {128u, 128u, 6u,  128u, 128u, 7u,
>+                                          128u, 128u, 8u,  128u, 128u, 9u,
>+                                          128u, 128u, 10u, 128u};
>+
>+static const uvec8 kShuffleMaskBToRGB2 = {10u, 128u, 128u, 11u, 128u, 128u,
>+                                          12u, 128u, 128u, 13u, 128u, 128u,
>+                                          14u, 128u, 128u, 15u};
>+static const uvec8 kShuffleMaskRToRGB2 = {128u, 11u, 128u, 128u, 12u, 128u,
>+                                          128u, 13u, 128u, 128u, 14u, 128u,
>+                                          128u, 15u, 128u, 128u};
>+static const uvec8 kShuffleMaskGToRGB2 = {128u, 128u, 11u, 128u, 128u, 12u,
>+                                          128u, 128u, 13u, 128u, 128u, 14u,
>+                                          128u, 128u, 15u, 128u};
>+
>+void MergeRGBRow_SSSE3(const uint8_t* src_r,
>+                       const uint8_t* src_g,
>+                       const uint8_t* src_b,
>+                       uint8_t* dst_rgb,
>+                       int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     (%1),%%xmm1                    \n"
>+      "movdqu     (%2),%%xmm2                    \n"
>+      "pshufb     %5, %%xmm0                     \n"
>+      "pshufb     %6, %%xmm1                     \n"
>+      "pshufb     %7, %%xmm2                     \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,(%3)                    \n"
>+
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     (%1),%%xmm1                    \n"
>+      "movdqu     (%2),%%xmm2                    \n"
>+      "pshufb     %8, %%xmm0                     \n"
>+      "pshufb     %9, %%xmm1                     \n"
>+      "pshufb     %10, %%xmm2                    \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,16(%3)                  \n"
>+
>+      "movdqu     (%0),%%xmm0                    \n"
>+      "movdqu     (%1),%%xmm1                    \n"
>+      "movdqu     (%2),%%xmm2                    \n"
>+      "pshufb     %11, %%xmm0                    \n"
>+      "pshufb     %12, %%xmm1                    \n"
>+      "pshufb     %13, %%xmm2                    \n"
>+      "por        %%xmm1,%%xmm0                  \n"
>+      "por        %%xmm2,%%xmm0                  \n"
>+      "movdqu     %%xmm0,32(%3)                  \n"
>+
>+      "lea        0x10(%0),%0                    \n"
>+      "lea        0x10(%1),%1                    \n"
>+      "lea        0x10(%2),%2                    \n"
>+      "lea        0x30(%3),%3                    \n"
>+      "sub        $0x10,%4                       \n"
>+      "jg         1b                             \n"
>+      : "+r"(src_r),               // %0
>+        "+r"(src_g),               // %1
>+        "+r"(src_b),               // %2
>+        "+r"(dst_rgb),             // %3
>+        "+r"(width)                // %4
>+      : "m"(kShuffleMaskRToRGB0),  // %5
>+        "m"(kShuffleMaskGToRGB0),  // %6
>+        "m"(kShuffleMaskBToRGB0),  // %7
>+        "m"(kShuffleMaskRToRGB1),  // %8
>+        "m"(kShuffleMaskGToRGB1),  // %9
>+        "m"(kShuffleMaskBToRGB1),  // %10
>+        "m"(kShuffleMaskRToRGB2),  // %11
>+        "m"(kShuffleMaskGToRGB2),  // %12
>+        "m"(kShuffleMaskBToRGB2)   // %13
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+}
>+#endif  // HAS_MERGERGBROW_SSSE3
>+
>+#ifdef HAS_COPYROW_SSE2
>+void CopyRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "test       $0xf,%0                        \n"
>+      "jne        2f                             \n"
>+      "test       $0xf,%1                        \n"
>+      "jne        2f                             \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqa    (%0),%%xmm0                     \n"
>+      "movdqa    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "movdqa    %%xmm0,(%1)                     \n"
>+      "movdqa    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "jmp       9f                              \n"
>+
>+      LABELALIGN
>+      "2:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        2b                              \n"
>+
>+      LABELALIGN "9:                             \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_COPYROW_SSE2
> 
> #ifdef HAS_COPYROW_AVX
>-void CopyRow_AVX(const uint8* src, uint8* dst, int count) {
>-  asm volatile (
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vmovdqu   %%ymm0," MEMACCESS(1) "         \n"
>-    "vmovdqu   %%ymm1," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x40,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(count)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+void CopyRow_AVX(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vmovdqu   %%ymm0,(%1)                     \n"
>+      "vmovdqu   %%ymm1,0x20(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x40,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_COPYROW_AVX
> 
> #ifdef HAS_COPYROW_ERMS
> // Multiple of 1.
>-void CopyRow_ERMS(const uint8* src, uint8* dst, int width) {
>+void CopyRow_ERMS(const uint8_t* src, uint8_t* dst, int width) {
>   size_t width_tmp = (size_t)(width);
>-  asm volatile("rep movsb " MEMMOVESTRING(0, 1) "          \n"
>-               : "+S"(src),       // %0
>-                 "+D"(dst),       // %1
>-                 "+c"(width_tmp)  // %2
>-               :
>-               : "memory", "cc");
>+  asm volatile(
>+
>+      "rep movsb                      \n"
>+      : "+S"(src),       // %0
>+        "+D"(dst),       // %1
>+        "+c"(width_tmp)  // %2
>+      :
>+      : "memory", "cc");
> }
> #endif  // HAS_COPYROW_ERMS
> 
> #ifdef HAS_ARGBCOPYALPHAROW_SSE2
> // width in pixels
>-void ARGBCopyAlphaRow_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm0,%%xmm0                   \n"
>-    "pslld     $0x18,%%xmm0                    \n"
>-    "pcmpeqb   %%xmm1,%%xmm1                   \n"
>-    "psrld     $0x8,%%xmm1                     \n"
>+void ARGBCopyAlphaRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm0,%%xmm0                   \n"
>+      "pslld     $0x18,%%xmm0                    \n"
>+      "pcmpeqb   %%xmm1,%%xmm1                   \n"
>+      "psrld     $0x8,%%xmm1                     \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm2         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm4         \n"
>-    "movdqu    " MEMACCESS2(0x10,1) ",%%xmm5   \n"
>-    "pand      %%xmm0,%%xmm2                   \n"
>-    "pand      %%xmm0,%%xmm3                   \n"
>-    "pand      %%xmm1,%%xmm4                   \n"
>-    "pand      %%xmm1,%%xmm5                   \n"
>-    "por       %%xmm4,%%xmm2                   \n"
>-    "por       %%xmm5,%%xmm3                   \n"
>-    "movdqu    %%xmm2," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm2                     \n"
>+      "movdqu    0x10(%0),%%xmm3                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "movdqu    (%1),%%xmm4                     \n"
>+      "movdqu    0x10(%1),%%xmm5                 \n"
>+      "pand      %%xmm0,%%xmm2                   \n"
>+      "pand      %%xmm0,%%xmm3                   \n"
>+      "pand      %%xmm1,%%xmm4                   \n"
>+      "pand      %%xmm1,%%xmm5                   \n"
>+      "por       %%xmm4,%%xmm2                   \n"
>+      "por       %%xmm5,%%xmm3                   \n"
>+      "movdqu    %%xmm2,(%1)                     \n"
>+      "movdqu    %%xmm3,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBCOPYALPHAROW_SSE2
> 
> #ifdef HAS_ARGBCOPYALPHAROW_AVX2
> // width in pixels
>-void ARGBCopyAlphaRow_AVX2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpsrld    $0x8,%%ymm0,%%ymm0              \n"
>+void ARGBCopyAlphaRow_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "vpcmpeqb  %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpsrld    $0x8,%%ymm0,%%ymm0              \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm1         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm2   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpblendvb %%ymm0," MEMACCESS(1) ",%%ymm1,%%ymm1        \n"
>-    "vpblendvb %%ymm0," MEMACCESS2(0x20,1) ",%%ymm2,%%ymm2  \n"
>-    "vmovdqu   %%ymm1," MEMACCESS(1) "         \n"
>-    "vmovdqu   %%ymm2," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm1                     \n"
>+      "vmovdqu   0x20(%0),%%ymm2                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpblendvb %%ymm0,(%1),%%ymm1,%%ymm1       \n"
>+      "vpblendvb %%ymm0,0x20(%1),%%ymm2,%%ymm2   \n"
>+      "vmovdqu   %%ymm1,(%1)                     \n"
>+      "vmovdqu   %%ymm2,0x20(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
> #endif  // HAS_ARGBCOPYALPHAROW_AVX2
> 
> #ifdef HAS_ARGBEXTRACTALPHAROW_SSE2
> // width in pixels
>-void ARGBExtractAlphaRow_SSE2(const uint8* src_argb, uint8* dst_a, int width) {
>-  asm volatile (
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ", %%xmm0        \n"
>-    "movdqu    " MEMACCESS2(0x10, 0) ", %%xmm1 \n"
>-    "lea       " MEMLEA(0x20, 0) ", %0         \n"
>-    "psrld     $0x18, %%xmm0                   \n"
>-    "psrld     $0x18, %%xmm1                   \n"
>-    "packssdw  %%xmm1, %%xmm0                  \n"
>-    "packuswb  %%xmm0, %%xmm0                  \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8, 1) ", %1          \n"
>-    "sub       $0x8, %2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_a),     // %1
>-    "+rm"(width)     // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+void ARGBExtractAlphaRow_SSE2(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0), %%xmm0                    \n"
>+      "movdqu    0x10(%0), %%xmm1                \n"
>+      "lea       0x20(%0), %0                    \n"
>+      "psrld     $0x18, %%xmm0                   \n"
>+      "psrld     $0x18, %%xmm1                   \n"
>+      "packssdw  %%xmm1, %%xmm0                  \n"
>+      "packuswb  %%xmm0, %%xmm0                  \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1), %1                     \n"
>+      "sub       $0x8, %2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_a),     // %1
>+        "+rm"(width)     // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_ARGBEXTRACTALPHAROW_SSE2
> 
>@@ -3203,657 +3798,636 @@ static const uvec8 kShuffleAlphaShort_AVX2 = {
>     3u,  128u, 128u, 128u, 7u,  128u, 128u, 128u,
>     11u, 128u, 128u, 128u, 15u, 128u, 128u, 128u};
> 
>-void ARGBExtractAlphaRow_AVX2(const uint8* src_argb, uint8* dst_a, int width) {
>-  asm volatile (
>-    "vmovdqa    %3,%%ymm4                      \n"
>-    "vbroadcastf128 %4,%%ymm5                  \n"
>+void ARGBExtractAlphaRow_AVX2(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width) {
>+  asm volatile(
>+      "vmovdqa    %3,%%ymm4                      \n"
>+      "vbroadcastf128 %4,%%ymm5                  \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ", %%ymm0        \n"
>-    "vmovdqu   " MEMACCESS2(0x20, 0) ", %%ymm1 \n"
>-    "vpshufb    %%ymm5,%%ymm0,%%ymm0           \n" // vpsrld $0x18, %%ymm0
>-    "vpshufb    %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vmovdqu   " MEMACCESS2(0x40, 0) ", %%ymm2 \n"
>-    "vmovdqu   " MEMACCESS2(0x60, 0) ", %%ymm3 \n"
>-    "lea       " MEMLEA(0x80, 0) ", %0         \n"
>-    "vpackssdw  %%ymm1, %%ymm0, %%ymm0         \n"  // mutates
>-    "vpshufb    %%ymm5,%%ymm2,%%ymm2           \n"
>-    "vpshufb    %%ymm5,%%ymm3,%%ymm3           \n"
>-    "vpackssdw  %%ymm3, %%ymm2, %%ymm2         \n"  // mutates
>-    "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>-    "vpermd     %%ymm0,%%ymm4,%%ymm0           \n"  // unmutate.
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub        $0x20, %2                      \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_a),     // %1
>-    "+rm"(width)     // %2
>-  : "m"(kPermdARGBToY_AVX),  // %3
>-    "m"(kShuffleAlphaShort_AVX2)  // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0), %%ymm0                    \n"
>+      "vmovdqu   0x20(%0), %%ymm1                \n"
>+      "vpshufb    %%ymm5,%%ymm0,%%ymm0           \n"  // vpsrld $0x18, %%ymm0
>+      "vpshufb    %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vmovdqu   0x40(%0), %%ymm2                \n"
>+      "vmovdqu   0x60(%0), %%ymm3                \n"
>+      "lea       0x80(%0), %0                    \n"
>+      "vpackssdw  %%ymm1, %%ymm0, %%ymm0         \n"  // mutates
>+      "vpshufb    %%ymm5,%%ymm2,%%ymm2           \n"
>+      "vpshufb    %%ymm5,%%ymm3,%%ymm3           \n"
>+      "vpackssdw  %%ymm3, %%ymm2, %%ymm2         \n"  // mutates
>+      "vpackuswb  %%ymm2,%%ymm0,%%ymm0           \n"  // mutates.
>+      "vpermd     %%ymm0,%%ymm4,%%ymm0           \n"  // unmutate.
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub        $0x20, %2                      \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),               // %0
>+        "+r"(dst_a),                  // %1
>+        "+rm"(width)                  // %2
>+      : "m"(kPermdARGBToY_AVX),       // %3
>+        "m"(kShuffleAlphaShort_AVX2)  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBEXTRACTALPHAROW_AVX2
> 
> #ifdef HAS_ARGBCOPYYTOALPHAROW_SSE2
> // width in pixels
>-void ARGBCopyYToAlphaRow_SSE2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm0,%%xmm0                   \n"
>-    "pslld     $0x18,%%xmm0                    \n"
>-    "pcmpeqb   %%xmm1,%%xmm1                   \n"
>-    "psrld     $0x8,%%xmm1                     \n"
>+void ARGBCopyYToAlphaRow_SSE2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm0,%%xmm0                   \n"
>+      "pslld     $0x18,%%xmm0                    \n"
>+      "pcmpeqb   %%xmm1,%%xmm1                   \n"
>+      "psrld     $0x8,%%xmm1                     \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(0) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "punpcklbw %%xmm2,%%xmm2                   \n"
>-    "punpckhwd %%xmm2,%%xmm3                   \n"
>-    "punpcklwd %%xmm2,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm4         \n"
>-    "movdqu    " MEMACCESS2(0x10,1) ",%%xmm5   \n"
>-    "pand      %%xmm0,%%xmm2                   \n"
>-    "pand      %%xmm0,%%xmm3                   \n"
>-    "pand      %%xmm1,%%xmm4                   \n"
>-    "pand      %%xmm1,%%xmm5                   \n"
>-    "por       %%xmm4,%%xmm2                   \n"
>-    "por       %%xmm5,%%xmm3                   \n"
>-    "movdqu    %%xmm2," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm2                     \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "punpcklbw %%xmm2,%%xmm2                   \n"
>+      "punpckhwd %%xmm2,%%xmm3                   \n"
>+      "punpcklwd %%xmm2,%%xmm2                   \n"
>+      "movdqu    (%1),%%xmm4                     \n"
>+      "movdqu    0x10(%1),%%xmm5                 \n"
>+      "pand      %%xmm0,%%xmm2                   \n"
>+      "pand      %%xmm0,%%xmm3                   \n"
>+      "pand      %%xmm1,%%xmm4                   \n"
>+      "pand      %%xmm1,%%xmm5                   \n"
>+      "por       %%xmm4,%%xmm2                   \n"
>+      "por       %%xmm5,%%xmm3                   \n"
>+      "movdqu    %%xmm2,(%1)                     \n"
>+      "movdqu    %%xmm3,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBCOPYYTOALPHAROW_SSE2
> 
> #ifdef HAS_ARGBCOPYYTOALPHAROW_AVX2
> // width in pixels
>-void ARGBCopyYToAlphaRow_AVX2(const uint8* src, uint8* dst, int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpsrld    $0x8,%%ymm0,%%ymm0              \n"
>+void ARGBCopyYToAlphaRow_AVX2(const uint8_t* src, uint8_t* dst, int width) {
>+  asm volatile(
>+      "vpcmpeqb  %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpsrld    $0x8,%%ymm0,%%ymm0              \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vpmovzxbd " MEMACCESS(0) ",%%ymm1         \n"
>-    "vpmovzxbd " MEMACCESS2(0x8,0) ",%%ymm2    \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "vpslld    $0x18,%%ymm1,%%ymm1             \n"
>-    "vpslld    $0x18,%%ymm2,%%ymm2             \n"
>-    "vpblendvb %%ymm0," MEMACCESS(1) ",%%ymm1,%%ymm1        \n"
>-    "vpblendvb %%ymm0," MEMACCESS2(0x20,1) ",%%ymm2,%%ymm2  \n"
>-    "vmovdqu   %%ymm1," MEMACCESS(1) "         \n"
>-    "vmovdqu   %%ymm2," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vpmovzxbd (%0),%%ymm1                     \n"
>+      "vpmovzxbd 0x8(%0),%%ymm2                  \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "vpslld    $0x18,%%ymm1,%%ymm1             \n"
>+      "vpslld    $0x18,%%ymm2,%%ymm2             \n"
>+      "vpblendvb %%ymm0,(%1),%%ymm1,%%ymm1       \n"
>+      "vpblendvb %%ymm0,0x20(%1),%%ymm2,%%ymm2   \n"
>+      "vmovdqu   %%ymm1,(%1)                     \n"
>+      "vmovdqu   %%ymm2,0x20(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
> #endif  // HAS_ARGBCOPYYTOALPHAROW_AVX2
> 
> #ifdef HAS_SETROW_X86
>-void SetRow_X86(uint8* dst, uint8 v8, int width) {
>+void SetRow_X86(uint8_t* dst, uint8_t v8, int width) {
>   size_t width_tmp = (size_t)(width >> 2);
>-  const uint32 v32 = v8 * 0x01010101u;  // Duplicate byte to all bytes.
>-  asm volatile("rep stosl " MEMSTORESTRING(eax, 0) "       \n"
>-               : "+D"(dst),       // %0
>-                 "+c"(width_tmp)  // %1
>-               : "a"(v32)         // %2
>-               : "memory", "cc");
>+  const uint32_t v32 = v8 * 0x01010101u;  // Duplicate byte to all bytes.
>+  asm volatile(
>+
>+      "rep stosl                      \n"
>+      : "+D"(dst),       // %0
>+        "+c"(width_tmp)  // %1
>+      : "a"(v32)         // %2
>+      : "memory", "cc");
> }
> 
>-void SetRow_ERMS(uint8* dst, uint8 v8, int width) {
>+void SetRow_ERMS(uint8_t* dst, uint8_t v8, int width) {
>   size_t width_tmp = (size_t)(width);
>-  asm volatile("rep stosb " MEMSTORESTRING(al, 0) "        \n"
>-               : "+D"(dst),       // %0
>-                 "+c"(width_tmp)  // %1
>-               : "a"(v8)          // %2
>-               : "memory", "cc");
>+  asm volatile(
>+
>+      "rep stosb                      \n"
>+      : "+D"(dst),       // %0
>+        "+c"(width_tmp)  // %1
>+      : "a"(v8)          // %2
>+      : "memory", "cc");
> }
> 
>-void ARGBSetRow_X86(uint8* dst_argb, uint32 v32, int width) {
>+void ARGBSetRow_X86(uint8_t* dst_argb, uint32_t v32, int width) {
>   size_t width_tmp = (size_t)(width);
>-  asm volatile("rep stosl " MEMSTORESTRING(eax, 0) "       \n"
>-               : "+D"(dst_argb),  // %0
>-                 "+c"(width_tmp)  // %1
>-               : "a"(v32)         // %2
>-               : "memory", "cc");
>+  asm volatile(
>+
>+      "rep stosl                      \n"
>+      : "+D"(dst_argb),  // %0
>+        "+c"(width_tmp)  // %1
>+      : "a"(v32)         // %2
>+      : "memory", "cc");
> }
> #endif  // HAS_SETROW_X86
> 
> #ifdef HAS_YUY2TOYROW_SSE2
>-void YUY2ToYRow_SSE2(const uint8* src_yuy2, uint8* dst_y, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrlw     $0x8,%%xmm5                     \n"
>+void YUY2ToYRow_SSE2(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrlw     $0x8,%%xmm5                     \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_yuy2),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_yuy2),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void YUY2ToUVRow_SSE2(const uint8* src_yuy2,
>+void YUY2ToUVRow_SSE2(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrlw     $0x8,%%xmm5                     \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrlw     $0x8,%%xmm5                     \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm2)           //  movdqu  (%0,%4,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm3)           //  movdqu  0x10(%0,%4,1),%%xmm3
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "pavgb     %%xmm3,%%xmm1                   \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movq,xmm1,0x00,1,2,1)             //  movq    %%xmm1,(%1,%2)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_yuy2),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  : "r"((intptr_t)(stride_yuy2))  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm3            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "pavgb     %%xmm3,%%xmm1                   \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq    %%xmm1,0x00(%1,%2,1)              \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_yuy2),               // %0
>+        "+r"(dst_u),                  // %1
>+        "+r"(dst_v),                  // %2
>+        "+r"(width)                   // %3
>+      : "r"((intptr_t)(stride_yuy2))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> 
>-void YUY2ToUV422Row_SSE2(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_SSE2(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrlw     $0x8,%%xmm5                     \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrlw     $0x8,%%xmm5                     \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movq,xmm1,0x00,1,2,1)             //  movq    %%xmm1,(%1,%2)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_yuy2),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq    %%xmm1,0x00(%1,%2,1)              \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_yuy2),  // %0
>+        "+r"(dst_u),     // %1
>+        "+r"(dst_v),     // %2
>+        "+r"(width)      // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void UYVYToYRow_SSE2(const uint8* src_uyvy, uint8* dst_y, int width) {
>-  asm volatile (
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_uyvy),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+void UYVYToYRow_SSE2(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_uyvy),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> 
>-void UYVYToUVRow_SSE2(const uint8* src_uyvy,
>+void UYVYToUVRow_SSE2(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrlw     $0x8,%%xmm5                     \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrlw     $0x8,%%xmm5                     \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm2)           //  movdqu  (%0,%4,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm3)           //  movdqu  0x10(%0,%4,1),%%xmm3
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "pavgb     %%xmm3,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movq,xmm1,0x00,1,2,1)             //  movq    %%xmm1,(%1,%2)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_uyvy),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  : "r"((intptr_t)(stride_uyvy))  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm3            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "pavgb     %%xmm3,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq    %%xmm1,0x00(%1,%2,1)              \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_uyvy),               // %0
>+        "+r"(dst_u),                  // %1
>+        "+r"(dst_v),                  // %2
>+        "+r"(width)                   // %3
>+      : "r"((intptr_t)(stride_uyvy))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> 
>-void UYVYToUV422Row_SSE2(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_SSE2(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrlw     $0x8,%%xmm5                     \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrlw     $0x8,%%xmm5                     \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    MEMOPMEM(movq,xmm1,0x00,1,2,1)             //  movq    %%xmm1,(%1,%2)
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_uyvy),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq    %%xmm1,0x00(%1,%2,1)              \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_uyvy),  // %0
>+        "+r"(dst_u),     // %1
>+        "+r"(dst_v),     // %2
>+        "+r"(width)      // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> #endif  // HAS_YUY2TOYROW_SSE2
> 
> #ifdef HAS_YUY2TOYROW_AVX2
>-void YUY2ToYRow_AVX2(const uint8* src_yuy2, uint8* dst_y, int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>-    "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>+void YUY2ToYRow_AVX2(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>+  asm volatile(
>+      "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>+      "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>-    "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vmovdqu   %%ymm0," MEMACCESS(1) "         \n"
>-    "lea      " MEMLEA(0x20,1) ",%1            \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_yuy2),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>+      "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vmovdqu   %%ymm0,(%1)                     \n"
>+      "lea      0x20(%1),%1                      \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_yuy2),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void YUY2ToUVRow_AVX2(const uint8* src_yuy2,
>+void YUY2ToUVRow_AVX2(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>-    "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>+      "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    VMEMOPREG(vpavgb,0x00,0,4,1,ymm0,ymm0)     // vpavgb (%0,%4,1),%%ymm0,%%ymm0
>-    VMEMOPREG(vpavgb,0x20,0,4,1,ymm1,ymm1)
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vextractf128 $0x0,%%ymm1," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,0,ymm0,0x00,1,2,1) // vextractf128 $0x0,%%ymm0,(%1,%2,1)
>-    "lea      " MEMLEA(0x10,1) ",%1            \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_yuy2),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  : "r"((intptr_t)(stride_yuy2))  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "vpavgb    0x00(%0,%4,1),%%ymm0,%%ymm0     \n"
>+      "vpavgb    0x20(%0,%4,1),%%ymm1,%%ymm1     \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vextractf128 $0x0,%%ymm1,(%1)             \n"
>+      "vextractf128 $0x0,%%ymm0,0x00(%1,%2,1)    \n"
>+      "lea      0x10(%1),%1                      \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_yuy2),               // %0
>+        "+r"(dst_u),                  // %1
>+        "+r"(dst_v),                  // %2
>+        "+r"(width)                   // %3
>+      : "r"((intptr_t)(stride_yuy2))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void YUY2ToUV422Row_AVX2(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_AVX2(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>-    "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>+      "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vextractf128 $0x0,%%ymm1," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,0,ymm0,0x00,1,2,1) // vextractf128 $0x0,%%ymm0,(%1,%2,1)
>-    "lea      " MEMLEA(0x10,1) ",%1            \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_yuy2),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vextractf128 $0x0,%%ymm1,(%1)             \n"
>+      "vextractf128 $0x0,%%ymm0,0x00(%1,%2,1)    \n"
>+      "lea      0x10(%1),%1                      \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_yuy2),  // %0
>+        "+r"(dst_u),     // %1
>+        "+r"(dst_v),     // %2
>+        "+r"(width)      // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
>-
>-void UYVYToYRow_AVX2(const uint8* src_uyvy, uint8* dst_y, int width) {
>-  asm volatile (
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vmovdqu   %%ymm0," MEMACCESS(1) "         \n"
>-    "lea      " MEMLEA(0x20,1) ",%1            \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_uyvy),  // %0
>-    "+r"(dst_y),     // %1
>-    "+r"(width)        // %2
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm5"
>-  );
>+
>+void UYVYToYRow_AVX2(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpsrlw    $0x8,%%ymm1,%%ymm1              \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vmovdqu   %%ymm0,(%1)                     \n"
>+      "lea      0x20(%1),%1                      \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_uyvy),  // %0
>+        "+r"(dst_y),     // %1
>+        "+r"(width)      // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
>-void UYVYToUVRow_AVX2(const uint8* src_uyvy,
>+void UYVYToUVRow_AVX2(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  asm volatile (
>-    "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>-    "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "vpcmpeqb  %%ymm5,%%ymm5,%%ymm5            \n"
>+      "vpsrlw    $0x8,%%ymm5,%%ymm5              \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    VMEMOPREG(vpavgb,0x00,0,4,1,ymm0,ymm0)     // vpavgb (%0,%4,1),%%ymm0,%%ymm0
>-    VMEMOPREG(vpavgb,0x20,0,4,1,ymm1,ymm1)
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>-    "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vextractf128 $0x0,%%ymm1," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,0,ymm0,0x00,1,2,1) // vextractf128 $0x0,%%ymm0,(%1,%2,1)
>-    "lea      " MEMLEA(0x10,1) ",%1            \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_uyvy),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  : "r"((intptr_t)(stride_uyvy))  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "vpavgb    0x00(%0,%4,1),%%ymm0,%%ymm0     \n"
>+      "vpavgb    0x20(%0,%4,1),%%ymm1,%%ymm1     \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>+      "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vextractf128 $0x0,%%ymm1,(%1)             \n"
>+      "vextractf128 $0x0,%%ymm0,0x00(%1,%2,1)    \n"
>+      "lea      0x10(%1),%1                      \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_uyvy),               // %0
>+        "+r"(dst_u),                  // %1
>+        "+r"(dst_v),                  // %2
>+        "+r"(width)                   // %3
>+      : "r"((intptr_t)(stride_uyvy))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void UYVYToUV422Row_AVX2(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_AVX2(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>-  asm volatile (
>-    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>-    "vpsrlw     $0x8,%%ymm5,%%ymm5             \n"
>-    "sub       %1,%2                           \n"
>+  asm volatile(
>+      "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+      "vpsrlw     $0x8,%%ymm5,%%ymm5             \n"
>+      "sub       %1,%2                           \n"
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>-    "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>-    "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>-    "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>-    "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>-    "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>-    "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>-    "vextractf128 $0x0,%%ymm1," MEMACCESS(1) " \n"
>-    VEXTOPMEM(vextractf128,0,ymm0,0x00,1,2,1) // vextractf128 $0x0,%%ymm0,(%1,%2,1)
>-    "lea      " MEMLEA(0x10,1) ",%1            \n"
>-    "sub       $0x20,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_uyvy),    // %0
>-    "+r"(dst_u),       // %1
>-    "+r"(dst_v),       // %2
>-    "+r"(width)          // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm0            \n"
>+      "vpand     %%ymm5,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm1,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vpand     %%ymm5,%%ymm0,%%ymm1            \n"
>+      "vpsrlw    $0x8,%%ymm0,%%ymm0              \n"
>+      "vpackuswb %%ymm1,%%ymm1,%%ymm1            \n"
>+      "vpackuswb %%ymm0,%%ymm0,%%ymm0            \n"
>+      "vpermq    $0xd8,%%ymm1,%%ymm1             \n"
>+      "vpermq    $0xd8,%%ymm0,%%ymm0             \n"
>+      "vextractf128 $0x0,%%ymm1,(%1)             \n"
>+      "vextractf128 $0x0,%%ymm0,0x00(%1,%2,1)    \n"
>+      "lea      0x10(%1),%1                      \n"
>+      "sub       $0x20,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_uyvy),  // %0
>+        "+r"(dst_u),     // %1
>+        "+r"(dst_v),     // %2
>+        "+r"(width)      // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> #endif  // HAS_YUY2TOYROW_AVX2
> 
> #ifdef HAS_ARGBBLENDROW_SSSE3
> // Shuffle table for isolating alpha.
>-static uvec8 kShuffleAlpha = {3u,  0x80, 3u,  0x80, 7u,  0x80, 7u,  0x80,
>-                              11u, 0x80, 11u, 0x80, 15u, 0x80, 15u, 0x80};
>+static const uvec8 kShuffleAlpha = {3u,  0x80, 3u,  0x80, 7u,  0x80, 7u,  0x80,
>+                                    11u, 0x80, 11u, 0x80, 15u, 0x80, 15u, 0x80};
> 
> // Blend 8 pixels at a time
>-void ARGBBlendRow_SSSE3(const uint8* src_argb0,
>-                        const uint8* src_argb1,
>-                        uint8* dst_argb,
>+void ARGBBlendRow_SSSE3(const uint8_t* src_argb0,
>+                        const uint8_t* src_argb1,
>+                        uint8_t* dst_argb,
>                         int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm7,%%xmm7                   \n"
>-    "psrlw     $0xf,%%xmm7                     \n"
>-    "pcmpeqb   %%xmm6,%%xmm6                   \n"
>-    "psrlw     $0x8,%%xmm6                     \n"
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psllw     $0x8,%%xmm5                     \n"
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "pslld     $0x18,%%xmm4                    \n"
>-    "sub       $0x4,%3                         \n"
>-    "jl        49f                             \n"
>-
>-    // 4 pixel loop.
>-    LABELALIGN
>-  "40:                                         \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm3         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm3,%%xmm0                   \n"
>-    "pxor      %%xmm4,%%xmm3                   \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm2         \n"
>-    "pshufb    %4,%%xmm3                       \n"
>-    "pand      %%xmm6,%%xmm2                   \n"
>-    "paddw     %%xmm7,%%xmm3                   \n"
>-    "pmullw    %%xmm3,%%xmm2                   \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "por       %%xmm4,%%xmm0                   \n"
>-    "pmullw    %%xmm3,%%xmm1                   \n"
>-    "psrlw     $0x8,%%xmm2                     \n"
>-    "paddusb   %%xmm2,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jge       40b                             \n"
>-
>-  "49:                                         \n"
>-    "add       $0x3,%3                         \n"
>-    "jl        99f                             \n"
>-
>-    // 1 pixel loop.
>-  "91:                                         \n"
>-    "movd      " MEMACCESS(0) ",%%xmm3         \n"
>-    "lea       " MEMLEA(0x4,0) ",%0            \n"
>-    "movdqa    %%xmm3,%%xmm0                   \n"
>-    "pxor      %%xmm4,%%xmm3                   \n"
>-    "movd      " MEMACCESS(1) ",%%xmm2         \n"
>-    "pshufb    %4,%%xmm3                       \n"
>-    "pand      %%xmm6,%%xmm2                   \n"
>-    "paddw     %%xmm7,%%xmm3                   \n"
>-    "pmullw    %%xmm3,%%xmm2                   \n"
>-    "movd      " MEMACCESS(1) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x4,1) ",%1            \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "por       %%xmm4,%%xmm0                   \n"
>-    "pmullw    %%xmm3,%%xmm1                   \n"
>-    "psrlw     $0x8,%%xmm2                     \n"
>-    "paddusb   %%xmm2,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movd      %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x4,2) ",%2            \n"
>-    "sub       $0x1,%3                         \n"
>-    "jge       91b                             \n"
>-  "99:                                         \n"
>-  : "+r"(src_argb0),    // %0
>-    "+r"(src_argb1),    // %1
>-    "+r"(dst_argb),     // %2
>-    "+r"(width)         // %3
>-  : "m"(kShuffleAlpha)  // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+      "pcmpeqb   %%xmm7,%%xmm7                   \n"
>+      "psrlw     $0xf,%%xmm7                     \n"
>+      "pcmpeqb   %%xmm6,%%xmm6                   \n"
>+      "psrlw     $0x8,%%xmm6                     \n"
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psllw     $0x8,%%xmm5                     \n"
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "pslld     $0x18,%%xmm4                    \n"
>+      "sub       $0x4,%3                         \n"
>+      "jl        49f                             \n"
>+
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "40:                                       \n"
>+      "movdqu    (%0),%%xmm3                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqa    %%xmm3,%%xmm0                   \n"
>+      "pxor      %%xmm4,%%xmm3                   \n"
>+      "movdqu    (%1),%%xmm2                     \n"
>+      "pshufb    %4,%%xmm3                       \n"
>+      "pand      %%xmm6,%%xmm2                   \n"
>+      "paddw     %%xmm7,%%xmm3                   \n"
>+      "pmullw    %%xmm3,%%xmm2                   \n"
>+      "movdqu    (%1),%%xmm1                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "por       %%xmm4,%%xmm0                   \n"
>+      "pmullw    %%xmm3,%%xmm1                   \n"
>+      "psrlw     $0x8,%%xmm2                     \n"
>+      "paddusb   %%xmm2,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jge       40b                             \n"
>+
>+      "49:                                       \n"
>+      "add       $0x3,%3                         \n"
>+      "jl        99f                             \n"
>+
>+      // 1 pixel loop.
>+      "91:                                       \n"
>+      "movd      (%0),%%xmm3                     \n"
>+      "lea       0x4(%0),%0                      \n"
>+      "movdqa    %%xmm3,%%xmm0                   \n"
>+      "pxor      %%xmm4,%%xmm3                   \n"
>+      "movd      (%1),%%xmm2                     \n"
>+      "pshufb    %4,%%xmm3                       \n"
>+      "pand      %%xmm6,%%xmm2                   \n"
>+      "paddw     %%xmm7,%%xmm3                   \n"
>+      "pmullw    %%xmm3,%%xmm2                   \n"
>+      "movd      (%1),%%xmm1                     \n"
>+      "lea       0x4(%1),%1                      \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "por       %%xmm4,%%xmm0                   \n"
>+      "pmullw    %%xmm3,%%xmm1                   \n"
>+      "psrlw     $0x8,%%xmm2                     \n"
>+      "paddusb   %%xmm2,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movd      %%xmm0,(%2)                     \n"
>+      "lea       0x4(%2),%2                      \n"
>+      "sub       $0x1,%3                         \n"
>+      "jge       91b                             \n"
>+      "99:                                       \n"
>+      : "+r"(src_argb0),    // %0
>+        "+r"(src_argb1),    // %1
>+        "+r"(dst_argb),     // %2
>+        "+r"(width)         // %3
>+      : "m"(kShuffleAlpha)  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBBLENDROW_SSSE3
> 
>@@ -3863,10 +4437,10 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0,
> // =((A2*C2)+(B2*(255-C2))+255)/256
> // signed version of math
> // =(((A2-128)*C2)+((B2-128)*(255-C2))+32768+127)/256
>-void BlendPlaneRow_SSSE3(const uint8* src0,
>-                         const uint8* src1,
>-                         const uint8* alpha,
>-                         uint8* dst,
>+void BlendPlaneRow_SSSE3(const uint8_t* src0,
>+                         const uint8_t* src1,
>+                         const uint8_t* alpha,
>+                         uint8_t* dst,
>                          int width) {
>   asm volatile(
>       "pcmpeqb    %%xmm5,%%xmm5                  \n"
>@@ -3915,10 +4489,10 @@ void BlendPlaneRow_SSSE3(const uint8* src0,
> // =((A2*C2)+(B2*(255-C2))+255)/256
> // signed version of math
> // =(((A2-128)*C2)+((B2-128)*(255-C2))+32768+127)/256
>-void BlendPlaneRow_AVX2(const uint8* src0,
>-                        const uint8* src1,
>-                        const uint8* alpha,
>-                        uint8* dst,
>+void BlendPlaneRow_AVX2(const uint8_t* src0,
>+                        const uint8_t* src1,
>+                        const uint8_t* alpha,
>+                        uint8_t* dst,
>                         int width) {
>   asm volatile(
>       "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>@@ -3972,50 +4546,50 @@ void BlendPlaneRow_AVX2(const uint8* src0,
> 
> #ifdef HAS_ARGBATTENUATEROW_SSSE3
> // Shuffle table duplicating alpha
>-static uvec8 kShuffleAlpha0 = {3u, 3u, 3u, 3u, 3u, 3u, 128u, 128u,
>-                               7u, 7u, 7u, 7u, 7u, 7u, 128u, 128u};
>-static uvec8 kShuffleAlpha1 = {11u, 11u, 11u, 11u, 11u, 11u, 128u, 128u,
>-                               15u, 15u, 15u, 15u, 15u, 15u, 128u, 128u};
>+static const uvec8 kShuffleAlpha0 = {3u, 3u, 3u, 3u, 3u, 3u, 128u, 128u,
>+                                     7u, 7u, 7u, 7u, 7u, 7u, 128u, 128u};
>+static const uvec8 kShuffleAlpha1 = {11u, 11u, 11u, 11u, 11u, 11u, 128u, 128u,
>+                                     15u, 15u, 15u, 15u, 15u, 15u, 128u, 128u};
> // Attenuate 4 pixels at a time.
>-void ARGBAttenuateRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "pcmpeqb   %%xmm3,%%xmm3                   \n"
>-    "pslld     $0x18,%%xmm3                    \n"
>-    "movdqa    %3,%%xmm4                       \n"
>-    "movdqa    %4,%%xmm5                       \n"
>+void ARGBAttenuateRow_SSSE3(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>+                            int width) {
>+  asm volatile(
>+      "pcmpeqb   %%xmm3,%%xmm3                   \n"
>+      "pslld     $0x18,%%xmm3                    \n"
>+      "movdqa    %3,%%xmm4                       \n"
>+      "movdqa    %4,%%xmm5                       \n"
> 
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "punpcklbw %%xmm1,%%xmm1                   \n"
>-    "pmulhuw   %%xmm1,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "pshufb    %%xmm5,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm2         \n"
>-    "punpckhbw %%xmm2,%%xmm2                   \n"
>-    "pmulhuw   %%xmm2,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "pand      %%xmm3,%%xmm2                   \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "por       %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),    // %0
>-    "+r"(dst_argb),    // %1
>-    "+r"(width)        // %2
>-  : "m"(kShuffleAlpha0),  // %3
>-    "m"(kShuffleAlpha1)  // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "punpcklbw %%xmm1,%%xmm1                   \n"
>+      "pmulhuw   %%xmm1,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "pshufb    %%xmm5,%%xmm1                   \n"
>+      "movdqu    (%0),%%xmm2                     \n"
>+      "punpckhbw %%xmm2,%%xmm2                   \n"
>+      "pmulhuw   %%xmm2,%%xmm1                   \n"
>+      "movdqu    (%0),%%xmm2                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "pand      %%xmm3,%%xmm2                   \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "por       %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),       // %0
>+        "+r"(dst_argb),       // %1
>+        "+r"(width)           // %2
>+      : "m"(kShuffleAlpha0),  // %3
>+        "m"(kShuffleAlpha1)   // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBATTENUATEROW_SSSE3
> 
>@@ -4025,87 +4599,85 @@ static const uvec8 kShuffleAlpha_AVX2 = {6u,   7u,   6u,   7u,  6u,  7u,
>                                          128u, 128u, 14u,  15u, 14u, 15u,
>                                          14u,  15u,  128u, 128u};
> // Attenuate 8 pixels at a time.
>-void ARGBAttenuateRow_AVX2(const uint8* src_argb, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "vbroadcastf128 %3,%%ymm4                  \n"
>-    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>-    "vpslld     $0x18,%%ymm5,%%ymm5            \n"
>-    "sub        %0,%1                          \n"
>+void ARGBAttenuateRow_AVX2(const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>+                           int width) {
>+  asm volatile(
>+      "vbroadcastf128 %3,%%ymm4                  \n"
>+      "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+      "vpslld     $0x18,%%ymm5,%%ymm5            \n"
>+      "sub        %0,%1                          \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm6        \n"
>-    "vpunpcklbw %%ymm6,%%ymm6,%%ymm0           \n"
>-    "vpunpckhbw %%ymm6,%%ymm6,%%ymm1           \n"
>-    "vpshufb    %%ymm4,%%ymm0,%%ymm2           \n"
>-    "vpshufb    %%ymm4,%%ymm1,%%ymm3           \n"
>-    "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vpand      %%ymm5,%%ymm6,%%ymm6           \n"
>-    "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpor       %%ymm6,%%ymm0,%%ymm0           \n"
>-    MEMOPMEM(vmovdqu,ymm0,0x00,0,1,1)          //  vmovdqu %%ymm0,(%0,%1)
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "sub        $0x8,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),    // %0
>-    "+r"(dst_argb),    // %1
>-    "+r"(width)        // %2
>-  : "m"(kShuffleAlpha_AVX2)  // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm6                    \n"
>+      "vpunpcklbw %%ymm6,%%ymm6,%%ymm0           \n"
>+      "vpunpckhbw %%ymm6,%%ymm6,%%ymm1           \n"
>+      "vpshufb    %%ymm4,%%ymm0,%%ymm2           \n"
>+      "vpshufb    %%ymm4,%%ymm1,%%ymm3           \n"
>+      "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vpand      %%ymm5,%%ymm6,%%ymm6           \n"
>+      "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpor       %%ymm6,%%ymm0,%%ymm0           \n"
>+      "vmovdqu    %%ymm0,0x00(%0,%1,1)           \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "sub        $0x8,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),          // %0
>+        "+r"(dst_argb),          // %1
>+        "+r"(width)              // %2
>+      : "m"(kShuffleAlpha_AVX2)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_ARGBATTENUATEROW_AVX2
> 
> #ifdef HAS_ARGBUNATTENUATEROW_SSE2
> // Unattenuate 4 pixels at a time.
>-void ARGBUnattenuateRow_SSE2(const uint8* src_argb,
>-                             uint8* dst_argb,
>+void ARGBUnattenuateRow_SSE2(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>                              int width) {
>   uintptr_t alpha;
>-  asm volatile (
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movzb     " MEMACCESS2(0x03,0) ",%3       \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    MEMOPREG(movd,0x00,4,3,4,xmm2)             //  movd      0x0(%4,%3,4),%%xmm2
>-    "movzb     " MEMACCESS2(0x07,0) ",%3       \n"
>-    MEMOPREG(movd,0x00,4,3,4,xmm3)             //  movd      0x0(%4,%3,4),%%xmm3
>-    "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>-    "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>-    "movlhps   %%xmm3,%%xmm2                   \n"
>-    "pmulhuw   %%xmm2,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "movzb     " MEMACCESS2(0x0b,0) ",%3       \n"
>-    "punpckhbw %%xmm1,%%xmm1                   \n"
>-    MEMOPREG(movd,0x00,4,3,4,xmm2)             //  movd      0x0(%4,%3,4),%%xmm2
>-    "movzb     " MEMACCESS2(0x0f,0) ",%3       \n"
>-    MEMOPREG(movd,0x00,4,3,4,xmm3)             //  movd      0x0(%4,%3,4),%%xmm3
>-    "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>-    "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>-    "movlhps   %%xmm3,%%xmm2                   \n"
>-    "pmulhuw   %%xmm2,%%xmm1                   \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),     // %0
>-    "+r"(dst_argb),     // %1
>-    "+r"(width),        // %2
>-    "=&r"(alpha)        // %3
>-  : "r"(fixed_invtbl8)  // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movzb     0x03(%0),%3                     \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "movd      0x00(%4,%3,4),%%xmm2            \n"
>+      "movzb     0x07(%0),%3                     \n"
>+      "movd      0x00(%4,%3,4),%%xmm3            \n"
>+      "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>+      "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>+      "movlhps   %%xmm3,%%xmm2                   \n"
>+      "pmulhuw   %%xmm2,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "movzb     0x0b(%0),%3                     \n"
>+      "punpckhbw %%xmm1,%%xmm1                   \n"
>+      "movd      0x00(%4,%3,4),%%xmm2            \n"
>+      "movzb     0x0f(%0),%3                     \n"
>+      "movd      0x00(%4,%3,4),%%xmm3            \n"
>+      "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>+      "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>+      "movlhps   %%xmm3,%%xmm2                   \n"
>+      "pmulhuw   %%xmm2,%%xmm1                   \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),     // %0
>+        "+r"(dst_argb),     // %1
>+        "+r"(width),        // %2
>+        "=&r"(alpha)        // %3
>+      : "r"(fixed_invtbl8)  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBUNATTENUATEROW_SSE2
> 
>@@ -4114,114 +4686,111 @@ void ARGBUnattenuateRow_SSE2(const uint8* src_argb,
> static const uvec8 kUnattenShuffleAlpha_AVX2 = {
>     0u, 1u, 0u, 1u, 0u, 1u, 6u, 7u, 8u, 9u, 8u, 9u, 8u, 9u, 14u, 15u};
> // Unattenuate 8 pixels at a time.
>-void ARGBUnattenuateRow_AVX2(const uint8* src_argb,
>-                             uint8* dst_argb,
>+void ARGBUnattenuateRow_AVX2(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>                              int width) {
>   uintptr_t alpha;
>-  asm volatile (
>-    "sub        %0,%1                          \n"
>-    "vbroadcastf128 %5,%%ymm5                  \n"
>+  asm volatile(
>+      "sub        %0,%1                          \n"
>+      "vbroadcastf128 %5,%%ymm5                  \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    // replace VPGATHER
>-    "movzb     " MEMACCESS2(0x03,0) ",%3       \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm0)             //  vmovd 0x0(%4,%3,4),%%xmm0
>-    "movzb     " MEMACCESS2(0x07,0) ",%3       \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm1)             //  vmovd 0x0(%4,%3,4),%%xmm1
>-    "movzb     " MEMACCESS2(0x0b,0) ",%3       \n"
>-    "vpunpckldq %%xmm1,%%xmm0,%%xmm6           \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm2)             //  vmovd 0x0(%4,%3,4),%%xmm2
>-    "movzb     " MEMACCESS2(0x0f,0) ",%3       \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm3)             //  vmovd 0x0(%4,%3,4),%%xmm3
>-    "movzb     " MEMACCESS2(0x13,0) ",%3       \n"
>-    "vpunpckldq %%xmm3,%%xmm2,%%xmm7           \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm0)             //  vmovd 0x0(%4,%3,4),%%xmm0
>-    "movzb     " MEMACCESS2(0x17,0) ",%3       \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm1)             //  vmovd 0x0(%4,%3,4),%%xmm1
>-    "movzb     " MEMACCESS2(0x1b,0) ",%3       \n"
>-    "vpunpckldq %%xmm1,%%xmm0,%%xmm0           \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm2)             //  vmovd 0x0(%4,%3,4),%%xmm2
>-    "movzb     " MEMACCESS2(0x1f,0) ",%3       \n"
>-    MEMOPREG(vmovd,0x00,4,3,4,xmm3)             //  vmovd 0x0(%4,%3,4),%%xmm3
>-    "vpunpckldq %%xmm3,%%xmm2,%%xmm2           \n"
>-    "vpunpcklqdq %%xmm7,%%xmm6,%%xmm3          \n"
>-    "vpunpcklqdq %%xmm2,%%xmm0,%%xmm0          \n"
>-    "vinserti128 $0x1,%%xmm0,%%ymm3,%%ymm3     \n"
>-    // end of VPGATHER
>-
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm6        \n"
>-    "vpunpcklbw %%ymm6,%%ymm6,%%ymm0           \n"
>-    "vpunpckhbw %%ymm6,%%ymm6,%%ymm1           \n"
>-    "vpunpcklwd %%ymm3,%%ymm3,%%ymm2           \n"
>-    "vpunpckhwd %%ymm3,%%ymm3,%%ymm3           \n"
>-    "vpshufb    %%ymm5,%%ymm2,%%ymm2           \n"
>-    "vpshufb    %%ymm5,%%ymm3,%%ymm3           \n"
>-    "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    MEMOPMEM(vmovdqu,ymm0,0x00,0,1,1)          //  vmovdqu %%ymm0,(%0,%1)
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "sub        $0x8,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),      // %0
>-    "+r"(dst_argb),      // %1
>-    "+r"(width),         // %2
>-    "=&r"(alpha)         // %3
>-  : "r"(fixed_invtbl8),  // %4
>-    "m"(kUnattenShuffleAlpha_AVX2)  // %5
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      // replace VPGATHER
>+      "movzb     0x03(%0),%3                     \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm0            \n"
>+      "movzb     0x07(%0),%3                     \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm1            \n"
>+      "movzb     0x0b(%0),%3                     \n"
>+      "vpunpckldq %%xmm1,%%xmm0,%%xmm6           \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm2            \n"
>+      "movzb     0x0f(%0),%3                     \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm3            \n"
>+      "movzb     0x13(%0),%3                     \n"
>+      "vpunpckldq %%xmm3,%%xmm2,%%xmm7           \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm0            \n"
>+      "movzb     0x17(%0),%3                     \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm1            \n"
>+      "movzb     0x1b(%0),%3                     \n"
>+      "vpunpckldq %%xmm1,%%xmm0,%%xmm0           \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm2            \n"
>+      "movzb     0x1f(%0),%3                     \n"
>+      "vmovd     0x00(%4,%3,4),%%xmm3            \n"
>+      "vpunpckldq %%xmm3,%%xmm2,%%xmm2           \n"
>+      "vpunpcklqdq %%xmm7,%%xmm6,%%xmm3          \n"
>+      "vpunpcklqdq %%xmm2,%%xmm0,%%xmm0          \n"
>+      "vinserti128 $0x1,%%xmm0,%%ymm3,%%ymm3     \n"
>+      // end of VPGATHER
>+
>+      "vmovdqu    (%0),%%ymm6                    \n"
>+      "vpunpcklbw %%ymm6,%%ymm6,%%ymm0           \n"
>+      "vpunpckhbw %%ymm6,%%ymm6,%%ymm1           \n"
>+      "vpunpcklwd %%ymm3,%%ymm3,%%ymm2           \n"
>+      "vpunpckhwd %%ymm3,%%ymm3,%%ymm3           \n"
>+      "vpshufb    %%ymm5,%%ymm2,%%ymm2           \n"
>+      "vpshufb    %%ymm5,%%ymm3,%%ymm3           \n"
>+      "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vmovdqu    %%ymm0,0x00(%0,%1,1)           \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "sub        $0x8,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),                 // %0
>+        "+r"(dst_argb),                 // %1
>+        "+r"(width),                    // %2
>+        "=&r"(alpha)                    // %3
>+      : "r"(fixed_invtbl8),             // %4
>+        "m"(kUnattenShuffleAlpha_AVX2)  // %5
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBUNATTENUATEROW_AVX2
> 
> #ifdef HAS_ARGBGRAYROW_SSSE3
> // Convert 8 ARGB pixels (64 bytes) to 8 Gray ARGB pixels
>-void ARGBGrayRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width) {
>-  asm volatile (
>-    "movdqa    %3,%%xmm4                       \n"
>-    "movdqa    %4,%%xmm5                       \n"
>+void ARGBGrayRow_SSSE3(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "movdqa    %3,%%xmm4                       \n"
>+      "movdqa    %4,%%xmm5                       \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "pmaddubsw %%xmm4,%%xmm0                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "phaddw    %%xmm1,%%xmm0                   \n"
>-    "paddw     %%xmm5,%%xmm0                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm2         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm3   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "psrld     $0x18,%%xmm2                    \n"
>-    "psrld     $0x18,%%xmm3                    \n"
>-    "packuswb  %%xmm3,%%xmm2                   \n"
>-    "packuswb  %%xmm2,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm3                   \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "punpcklbw %%xmm2,%%xmm3                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklwd %%xmm3,%%xmm0                   \n"
>-    "punpckhwd %%xmm3,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),   // %0
>-    "+r"(dst_argb),   // %1
>-    "+r"(width)       // %2
>-  : "m"(kARGBToYJ),   // %3
>-    "m"(kAddYJ64)     // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "pmaddubsw %%xmm4,%%xmm0                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "phaddw    %%xmm1,%%xmm0                   \n"
>+      "paddw     %%xmm5,%%xmm0                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm2                     \n"
>+      "movdqu    0x10(%0),%%xmm3                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "psrld     $0x18,%%xmm2                    \n"
>+      "psrld     $0x18,%%xmm3                    \n"
>+      "packuswb  %%xmm3,%%xmm2                   \n"
>+      "packuswb  %%xmm2,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm3                   \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "punpcklbw %%xmm2,%%xmm3                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklwd %%xmm3,%%xmm0                   \n"
>+      "punpckhwd %%xmm3,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "m"(kARGBToYJ),  // %3
>+        "m"(kAddYJ64)    // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBGRAYROW_SSSE3
> 
>@@ -4230,428 +4799,415 @@ void ARGBGrayRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width) {
> //    g = (r * 45 + g * 88 + b * 22) >> 7
> //    r = (r * 50 + g * 98 + b * 24) >> 7
> // Constant for ARGB color to sepia tone
>-static vec8 kARGBToSepiaB = {17, 68, 35, 0, 17, 68, 35, 0,
>-                             17, 68, 35, 0, 17, 68, 35, 0};
>+static const vec8 kARGBToSepiaB = {17, 68, 35, 0, 17, 68, 35, 0,
>+                                   17, 68, 35, 0, 17, 68, 35, 0};
> 
>-static vec8 kARGBToSepiaG = {22, 88, 45, 0, 22, 88, 45, 0,
>-                             22, 88, 45, 0, 22, 88, 45, 0};
>+static const vec8 kARGBToSepiaG = {22, 88, 45, 0, 22, 88, 45, 0,
>+                                   22, 88, 45, 0, 22, 88, 45, 0};
> 
>-static vec8 kARGBToSepiaR = {24, 98, 50, 0, 24, 98, 50, 0,
>-                             24, 98, 50, 0, 24, 98, 50, 0};
>+static const vec8 kARGBToSepiaR = {24, 98, 50, 0, 24, 98, 50, 0,
>+                                   24, 98, 50, 0, 24, 98, 50, 0};
> 
> // Convert 8 ARGB pixels (32 bytes) to 8 Sepia ARGB pixels.
>-void ARGBSepiaRow_SSSE3(uint8* dst_argb, int width) {
>-  asm volatile (
>-    "movdqa    %2,%%xmm2                       \n"
>-    "movdqa    %3,%%xmm3                       \n"
>-    "movdqa    %4,%%xmm4                       \n"
>+void ARGBSepiaRow_SSSE3(uint8_t* dst_argb, int width) {
>+  asm volatile(
>+      "movdqa    %2,%%xmm2                       \n"
>+      "movdqa    %3,%%xmm3                       \n"
>+      "movdqa    %4,%%xmm4                       \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm6   \n"
>-    "pmaddubsw %%xmm2,%%xmm0                   \n"
>-    "pmaddubsw %%xmm2,%%xmm6                   \n"
>-    "phaddw    %%xmm6,%%xmm0                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm5         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "pmaddubsw %%xmm3,%%xmm5                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "phaddw    %%xmm1,%%xmm5                   \n"
>-    "psrlw     $0x7,%%xmm5                     \n"
>-    "packuswb  %%xmm5,%%xmm5                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm5         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "pmaddubsw %%xmm4,%%xmm5                   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "phaddw    %%xmm1,%%xmm5                   \n"
>-    "psrlw     $0x7,%%xmm5                     \n"
>-    "packuswb  %%xmm5,%%xmm5                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm6         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "psrld     $0x18,%%xmm6                    \n"
>-    "psrld     $0x18,%%xmm1                    \n"
>-    "packuswb  %%xmm1,%%xmm6                   \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "punpcklbw %%xmm6,%%xmm5                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklwd %%xmm5,%%xmm0                   \n"
>-    "punpckhwd %%xmm5,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(0) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,0) "   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "sub       $0x8,%1                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(dst_argb),      // %0
>-    "+r"(width)          // %1
>-  : "m"(kARGBToSepiaB),  // %2
>-    "m"(kARGBToSepiaG),  // %3
>-    "m"(kARGBToSepiaR)   // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm6                 \n"
>+      "pmaddubsw %%xmm2,%%xmm0                   \n"
>+      "pmaddubsw %%xmm2,%%xmm6                   \n"
>+      "phaddw    %%xmm6,%%xmm0                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm5                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "pmaddubsw %%xmm3,%%xmm5                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "phaddw    %%xmm1,%%xmm5                   \n"
>+      "psrlw     $0x7,%%xmm5                     \n"
>+      "packuswb  %%xmm5,%%xmm5                   \n"
>+      "punpcklbw %%xmm5,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm5                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "pmaddubsw %%xmm4,%%xmm5                   \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "phaddw    %%xmm1,%%xmm5                   \n"
>+      "psrlw     $0x7,%%xmm5                     \n"
>+      "packuswb  %%xmm5,%%xmm5                   \n"
>+      "movdqu    (%0),%%xmm6                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "psrld     $0x18,%%xmm6                    \n"
>+      "psrld     $0x18,%%xmm1                    \n"
>+      "packuswb  %%xmm1,%%xmm6                   \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "punpcklbw %%xmm6,%%xmm5                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklwd %%xmm5,%%xmm0                   \n"
>+      "punpckhwd %%xmm5,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%0)                     \n"
>+      "movdqu    %%xmm1,0x10(%0)                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "sub       $0x8,%1                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(dst_argb),      // %0
>+        "+r"(width)          // %1
>+      : "m"(kARGBToSepiaB),  // %2
>+        "m"(kARGBToSepiaG),  // %3
>+        "m"(kARGBToSepiaR)   // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_ARGBSEPIAROW_SSSE3
> 
> #ifdef HAS_ARGBCOLORMATRIXROW_SSSE3
> // Tranform 8 ARGB pixels (32 bytes) with color matrix.
> // Same as Sepia except matrix is provided.
>-void ARGBColorMatrixRow_SSSE3(const uint8* src_argb,
>-                              uint8* dst_argb,
>-                              const int8* matrix_argb,
>+void ARGBColorMatrixRow_SSSE3(const uint8_t* src_argb,
>+                              uint8_t* dst_argb,
>+                              const int8_t* matrix_argb,
>                               int width) {
>-  asm volatile (
>-    "movdqu    " MEMACCESS(3) ",%%xmm5         \n"
>-    "pshufd    $0x00,%%xmm5,%%xmm2             \n"
>-    "pshufd    $0x55,%%xmm5,%%xmm3             \n"
>-    "pshufd    $0xaa,%%xmm5,%%xmm4             \n"
>-    "pshufd    $0xff,%%xmm5,%%xmm5             \n"
>+  asm volatile(
>+      "movdqu    (%3),%%xmm5                     \n"
>+      "pshufd    $0x00,%%xmm5,%%xmm2             \n"
>+      "pshufd    $0x55,%%xmm5,%%xmm3             \n"
>+      "pshufd    $0xaa,%%xmm5,%%xmm4             \n"
>+      "pshufd    $0xff,%%xmm5,%%xmm5             \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm7   \n"
>-    "pmaddubsw %%xmm2,%%xmm0                   \n"
>-    "pmaddubsw %%xmm2,%%xmm7                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm6         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "pmaddubsw %%xmm3,%%xmm6                   \n"
>-    "pmaddubsw %%xmm3,%%xmm1                   \n"
>-    "phaddsw   %%xmm7,%%xmm0                   \n"
>-    "phaddsw   %%xmm1,%%xmm6                   \n"
>-    "psraw     $0x6,%%xmm0                     \n"
>-    "psraw     $0x6,%%xmm6                     \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "punpcklbw %%xmm6,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm7   \n"
>-    "pmaddubsw %%xmm4,%%xmm1                   \n"
>-    "pmaddubsw %%xmm4,%%xmm7                   \n"
>-    "phaddsw   %%xmm7,%%xmm1                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm6         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm7   \n"
>-    "pmaddubsw %%xmm5,%%xmm6                   \n"
>-    "pmaddubsw %%xmm5,%%xmm7                   \n"
>-    "phaddsw   %%xmm7,%%xmm6                   \n"
>-    "psraw     $0x6,%%xmm1                     \n"
>-    "psraw     $0x6,%%xmm6                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "punpcklbw %%xmm6,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm6                   \n"
>-    "punpcklwd %%xmm1,%%xmm0                   \n"
>-    "punpckhwd %%xmm1,%%xmm6                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm6," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),      // %0
>-    "+r"(dst_argb),      // %1
>-    "+r"(width)          // %2
>-  : "r"(matrix_argb)     // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm7                 \n"
>+      "pmaddubsw %%xmm2,%%xmm0                   \n"
>+      "pmaddubsw %%xmm2,%%xmm7                   \n"
>+      "movdqu    (%0),%%xmm6                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "pmaddubsw %%xmm3,%%xmm6                   \n"
>+      "pmaddubsw %%xmm3,%%xmm1                   \n"
>+      "phaddsw   %%xmm7,%%xmm0                   \n"
>+      "phaddsw   %%xmm1,%%xmm6                   \n"
>+      "psraw     $0x6,%%xmm0                     \n"
>+      "psraw     $0x6,%%xmm6                     \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "punpcklbw %%xmm6,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "movdqu    0x10(%0),%%xmm7                 \n"
>+      "pmaddubsw %%xmm4,%%xmm1                   \n"
>+      "pmaddubsw %%xmm4,%%xmm7                   \n"
>+      "phaddsw   %%xmm7,%%xmm1                   \n"
>+      "movdqu    (%0),%%xmm6                     \n"
>+      "movdqu    0x10(%0),%%xmm7                 \n"
>+      "pmaddubsw %%xmm5,%%xmm6                   \n"
>+      "pmaddubsw %%xmm5,%%xmm7                   \n"
>+      "phaddsw   %%xmm7,%%xmm6                   \n"
>+      "psraw     $0x6,%%xmm1                     \n"
>+      "psraw     $0x6,%%xmm6                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "punpcklbw %%xmm6,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm6                   \n"
>+      "punpcklwd %%xmm1,%%xmm0                   \n"
>+      "punpckhwd %%xmm1,%%xmm6                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm6,0x10(%1)                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),   // %0
>+        "+r"(dst_argb),   // %1
>+        "+r"(width)       // %2
>+      : "r"(matrix_argb)  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBCOLORMATRIXROW_SSSE3
> 
> #ifdef HAS_ARGBQUANTIZEROW_SSE2
> // Quantize 4 ARGB pixels (16 bytes).
>-void ARGBQuantizeRow_SSE2(uint8* dst_argb,
>+void ARGBQuantizeRow_SSE2(uint8_t* dst_argb,
>                           int scale,
>                           int interval_size,
>                           int interval_offset,
>                           int width) {
>-  asm volatile (
>-    "movd      %2,%%xmm2                       \n"
>-    "movd      %3,%%xmm3                       \n"
>-    "movd      %4,%%xmm4                       \n"
>-    "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>-    "pshufd    $0x44,%%xmm2,%%xmm2             \n"
>-    "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>-    "pshufd    $0x44,%%xmm3,%%xmm3             \n"
>-    "pshuflw   $0x40,%%xmm4,%%xmm4             \n"
>-    "pshufd    $0x44,%%xmm4,%%xmm4             \n"
>-    "pxor      %%xmm5,%%xmm5                   \n"
>-    "pcmpeqb   %%xmm6,%%xmm6                   \n"
>-    "pslld     $0x18,%%xmm6                    \n"
>-
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "pmulhuw   %%xmm2,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm1         \n"
>-    "punpckhbw %%xmm5,%%xmm1                   \n"
>-    "pmulhuw   %%xmm2,%%xmm1                   \n"
>-    "pmullw    %%xmm3,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm7         \n"
>-    "pmullw    %%xmm3,%%xmm1                   \n"
>-    "pand      %%xmm6,%%xmm7                   \n"
>-    "paddw     %%xmm4,%%xmm0                   \n"
>-    "paddw     %%xmm4,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "por       %%xmm7,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(0) "         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "sub       $0x4,%1                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(dst_argb),       // %0
>-    "+r"(width)           // %1
>-  : "r"(scale),           // %2
>-    "r"(interval_size),   // %3
>-    "r"(interval_offset)  // %4
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+      "movd      %2,%%xmm2                       \n"
>+      "movd      %3,%%xmm3                       \n"
>+      "movd      %4,%%xmm4                       \n"
>+      "pshuflw   $0x40,%%xmm2,%%xmm2             \n"
>+      "pshufd    $0x44,%%xmm2,%%xmm2             \n"
>+      "pshuflw   $0x40,%%xmm3,%%xmm3             \n"
>+      "pshufd    $0x44,%%xmm3,%%xmm3             \n"
>+      "pshuflw   $0x40,%%xmm4,%%xmm4             \n"
>+      "pshufd    $0x44,%%xmm4,%%xmm4             \n"
>+      "pxor      %%xmm5,%%xmm5                   \n"
>+      "pcmpeqb   %%xmm6,%%xmm6                   \n"
>+      "pslld     $0x18,%%xmm6                    \n"
>+
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "punpcklbw %%xmm5,%%xmm0                   \n"
>+      "pmulhuw   %%xmm2,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm1                     \n"
>+      "punpckhbw %%xmm5,%%xmm1                   \n"
>+      "pmulhuw   %%xmm2,%%xmm1                   \n"
>+      "pmullw    %%xmm3,%%xmm0                   \n"
>+      "movdqu    (%0),%%xmm7                     \n"
>+      "pmullw    %%xmm3,%%xmm1                   \n"
>+      "pand      %%xmm6,%%xmm7                   \n"
>+      "paddw     %%xmm4,%%xmm0                   \n"
>+      "paddw     %%xmm4,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "por       %%xmm7,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%0)                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "sub       $0x4,%1                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(dst_argb),       // %0
>+        "+r"(width)           // %1
>+      : "r"(scale),           // %2
>+        "r"(interval_size),   // %3
>+        "r"(interval_offset)  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBQUANTIZEROW_SSE2
> 
> #ifdef HAS_ARGBSHADEROW_SSE2
> // Shade 4 pixels at a time by specified value.
>-void ARGBShadeRow_SSE2(const uint8* src_argb,
>-                       uint8* dst_argb,
>+void ARGBShadeRow_SSE2(const uint8_t* src_argb,
>+                       uint8_t* dst_argb,
>                        int width,
>-                       uint32 value) {
>-  asm volatile (
>-    "movd      %3,%%xmm2                       \n"
>-    "punpcklbw %%xmm2,%%xmm2                   \n"
>-    "punpcklqdq %%xmm2,%%xmm2                  \n"
>+                       uint32_t value) {
>+  asm volatile(
>+      "movd      %3,%%xmm2                       \n"
>+      "punpcklbw %%xmm2,%%xmm2                   \n"
>+      "punpcklqdq %%xmm2,%%xmm2                  \n"
> 
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "punpckhbw %%xmm1,%%xmm1                   \n"
>-    "pmulhuw   %%xmm2,%%xmm0                   \n"
>-    "pmulhuw   %%xmm2,%%xmm1                   \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)      // %2
>-  : "r"(value)       // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2"
>-  );
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "punpckhbw %%xmm1,%%xmm1                   \n"
>+      "pmulhuw   %%xmm2,%%xmm0                   \n"
>+      "pmulhuw   %%xmm2,%%xmm1                   \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "r"(value)       // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
> #endif  // HAS_ARGBSHADEROW_SSE2
> 
> #ifdef HAS_ARGBMULTIPLYROW_SSE2
> // Multiply 2 rows of ARGB pixels together, 4 pixels at a time.
>-void ARGBMultiplyRow_SSE2(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_SSE2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>-  asm volatile (
>-    "pxor      %%xmm5,%%xmm5                   \n"
>+  asm volatile(
> 
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "movdqu    %%xmm0,%%xmm1                   \n"
>-    "movdqu    %%xmm2,%%xmm3                   \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "punpckhbw %%xmm1,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "punpckhbw %%xmm5,%%xmm3                   \n"
>-    "pmulhuw   %%xmm2,%%xmm0                   \n"
>-    "pmulhuw   %%xmm3,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      "pxor      %%xmm5,%%xmm5                   \n"
>+
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqu    (%1),%%xmm2                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "movdqu    %%xmm0,%%xmm1                   \n"
>+      "movdqu    %%xmm2,%%xmm3                   \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "punpckhbw %%xmm1,%%xmm1                   \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "punpckhbw %%xmm5,%%xmm3                   \n"
>+      "pmulhuw   %%xmm2,%%xmm0                   \n"
>+      "pmulhuw   %%xmm3,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_ARGBMULTIPLYROW_SSE2
> 
> #ifdef HAS_ARGBMULTIPLYROW_AVX2
> // Multiply 2 rows of ARGB pixels together, 8 pixels at a time.
>-void ARGBMultiplyRow_AVX2(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_AVX2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>-  asm volatile (
>-    "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+  asm volatile(
> 
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm1        \n"
>-    "lea        " MEMLEA(0x20,0) ",%0          \n"
>-    "vmovdqu    " MEMACCESS(1) ",%%ymm3        \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "vpunpcklbw %%ymm1,%%ymm1,%%ymm0           \n"
>-    "vpunpckhbw %%ymm1,%%ymm1,%%ymm1           \n"
>-    "vpunpcklbw %%ymm5,%%ymm3,%%ymm2           \n"
>-    "vpunpckhbw %%ymm5,%%ymm3,%%ymm3           \n"
>-    "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(2) "        \n"
>-    "lea       " MEMLEA(0x20,2) ",%2           \n"
>-    "sub        $0x8,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>+      "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm1                    \n"
>+      "lea        0x20(%0),%0                    \n"
>+      "vmovdqu    (%1),%%ymm3                    \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "vpunpcklbw %%ymm1,%%ymm1,%%ymm0           \n"
>+      "vpunpckhbw %%ymm1,%%ymm1,%%ymm1           \n"
>+      "vpunpcklbw %%ymm5,%%ymm3,%%ymm2           \n"
>+      "vpunpckhbw %%ymm5,%%ymm3,%%ymm3           \n"
>+      "vpmulhuw   %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpmulhuw   %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vmovdqu    %%ymm0,(%2)                    \n"
>+      "lea       0x20(%2),%2                     \n"
>+      "sub        $0x8,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc"
> #if defined(__AVX2__)
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>+        ,
>+        "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
> #endif
>-  );
>+      );
> }
> #endif  // HAS_ARGBMULTIPLYROW_AVX2
> 
> #ifdef HAS_ARGBADDROW_SSE2
> // Add 2 rows of ARGB pixels together, 4 pixels at a time.
>-void ARGBAddRow_SSE2(const uint8* src_argb0,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_SSE2(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width) {
>-  asm volatile (
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqu    (%1),%%xmm1                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_ARGBADDROW_SSE2
> 
> #ifdef HAS_ARGBADDROW_AVX2
> // Add 2 rows of ARGB pixels together, 4 pixels at a time.
>-void ARGBAddRow_AVX2(const uint8* src_argb0,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_AVX2(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width) {
>-  asm volatile (
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "lea        " MEMLEA(0x20,0) ",%0          \n"
>-    "vpaddusb   " MEMACCESS(1) ",%%ymm0,%%ymm0 \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(2) "        \n"
>-    "lea        " MEMLEA(0x20,2) ",%2          \n"
>-    "sub        $0x8,%3                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0"
>-  );
>+  asm volatile(
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "lea        0x20(%0),%0                    \n"
>+      "vpaddusb   (%1),%%ymm0,%%ymm0             \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "vmovdqu    %%ymm0,(%2)                    \n"
>+      "lea        0x20(%2),%2                    \n"
>+      "sub        $0x8,%3                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc", "xmm0");
> }
> #endif  // HAS_ARGBADDROW_AVX2
> 
> #ifdef HAS_ARGBSUBTRACTROW_SSE2
> // Subtract 2 rows of ARGB pixels, 4 pixels at a time.
>-void ARGBSubtractRow_SSE2(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_SSE2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>-  asm volatile (
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm1         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "psubusb   %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqu    (%1),%%xmm1                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "psubusb   %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_ARGBSUBTRACTROW_SSE2
> 
> #ifdef HAS_ARGBSUBTRACTROW_AVX2
> // Subtract 2 rows of ARGB pixels, 8 pixels at a time.
>-void ARGBSubtractRow_AVX2(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_AVX2(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>-  asm volatile (
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "lea        " MEMLEA(0x20,0) ",%0          \n"
>-    "vpsubusb   " MEMACCESS(1) ",%%ymm0,%%ymm0 \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(2) "        \n"
>-    "lea        " MEMLEA(0x20,2) ",%2          \n"
>-    "sub        $0x8,%3                        \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb0),  // %0
>-    "+r"(src_argb1),  // %1
>-    "+r"(dst_argb),   // %2
>-    "+r"(width)       // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0"
>-  );
>+  asm volatile(
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "lea        0x20(%0),%0                    \n"
>+      "vpsubusb   (%1),%%ymm0,%%ymm0             \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "vmovdqu    %%ymm0,(%2)                    \n"
>+      "lea        0x20(%2),%2                    \n"
>+      "sub        $0x8,%3                        \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb0),  // %0
>+        "+r"(src_argb1),  // %1
>+        "+r"(dst_argb),   // %2
>+        "+r"(width)       // %3
>+      :
>+      : "memory", "cc", "xmm0");
> }
> #endif  // HAS_ARGBSUBTRACTROW_AVX2
> 
>@@ -4660,55 +5216,53 @@ void ARGBSubtractRow_AVX2(const uint8* src_argb0,
> // -1  0  1
> // -2  0  2
> // -1  0  1
>-void SobelXRow_SSE2(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    const uint8* src_y2,
>-                    uint8* dst_sobelx,
>+void SobelXRow_SSE2(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    const uint8_t* src_y2,
>+                    uint8_t* dst_sobelx,
>                     int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>-    "sub       %0,%2                           \n"
>-    "sub       %0,%3                           \n"
>-    "pxor      %%xmm5,%%xmm5                   \n"
>+  asm volatile(
>+      "sub       %0,%1                           \n"
>+      "sub       %0,%2                           \n"
>+      "sub       %0,%3                           \n"
>+      "pxor      %%xmm5,%%xmm5                   \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    "movq      " MEMACCESS2(0x2,0) ",%%xmm1    \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "psubw     %%xmm1,%%xmm0                   \n"
>-    MEMOPREG(movq,0x00,0,1,1,xmm1)             //  movq      (%0,%1,1),%%xmm1
>-    MEMOPREG(movq,0x02,0,1,1,xmm2)             //  movq      0x2(%0,%1,1),%%xmm2
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "psubw     %%xmm2,%%xmm1                   \n"
>-    MEMOPREG(movq,0x00,0,2,1,xmm2)             //  movq      (%0,%2,1),%%xmm2
>-    MEMOPREG(movq,0x02,0,2,1,xmm3)             //  movq      0x2(%0,%2,1),%%xmm3
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "punpcklbw %%xmm5,%%xmm3                   \n"
>-    "psubw     %%xmm3,%%xmm2                   \n"
>-    "paddw     %%xmm2,%%xmm0                   \n"
>-    "paddw     %%xmm1,%%xmm0                   \n"
>-    "paddw     %%xmm1,%%xmm0                   \n"
>-    "pxor      %%xmm1,%%xmm1                   \n"
>-    "psubw     %%xmm0,%%xmm1                   \n"
>-    "pmaxsw    %%xmm1,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    MEMOPMEM(movq,xmm0,0x00,0,3,1)             //  movq      %%xmm0,(%0,%3,1)
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "sub       $0x8,%4                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_y0),      // %0
>-    "+r"(src_y1),      // %1
>-    "+r"(src_y2),      // %2
>-    "+r"(dst_sobelx),  // %3
>-    "+r"(width)        // %4
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm0                     \n"
>+      "movq      0x2(%0),%%xmm1                  \n"
>+      "punpcklbw %%xmm5,%%xmm0                   \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "psubw     %%xmm1,%%xmm0                   \n"
>+      "movq      0x00(%0,%1,1),%%xmm1            \n"
>+      "movq      0x02(%0,%1,1),%%xmm2            \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "psubw     %%xmm2,%%xmm1                   \n"
>+      "movq      0x00(%0,%2,1),%%xmm2            \n"
>+      "movq      0x02(%0,%2,1),%%xmm3            \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "punpcklbw %%xmm5,%%xmm3                   \n"
>+      "psubw     %%xmm3,%%xmm2                   \n"
>+      "paddw     %%xmm2,%%xmm0                   \n"
>+      "paddw     %%xmm1,%%xmm0                   \n"
>+      "paddw     %%xmm1,%%xmm0                   \n"
>+      "pxor      %%xmm1,%%xmm1                   \n"
>+      "psubw     %%xmm0,%%xmm1                   \n"
>+      "pmaxsw    %%xmm1,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movq      %%xmm0,0x00(%0,%3,1)            \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "sub       $0x8,%4                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_y0),      // %0
>+        "+r"(src_y1),      // %1
>+        "+r"(src_y2),      // %2
>+        "+r"(dst_sobelx),  // %3
>+        "+r"(width)        // %4
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SOBELXROW_SSE2
> 
>@@ -4717,52 +5271,50 @@ void SobelXRow_SSE2(const uint8* src_y0,
> // -1 -2 -1
> //  0  0  0
> //  1  2  1
>-void SobelYRow_SSE2(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    uint8* dst_sobely,
>+void SobelYRow_SSE2(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    uint8_t* dst_sobely,
>                     int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>-    "sub       %0,%2                           \n"
>-    "pxor      %%xmm5,%%xmm5                   \n"
>+  asm volatile(
>+      "sub       %0,%1                           \n"
>+      "sub       %0,%2                           \n"
>+      "pxor      %%xmm5,%%xmm5                   \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movq,0x00,0,1,1,xmm1)             //  movq      (%0,%1,1),%%xmm1
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "psubw     %%xmm1,%%xmm0                   \n"
>-    "movq      " MEMACCESS2(0x1,0) ",%%xmm1    \n"
>-    MEMOPREG(movq,0x01,0,1,1,xmm2)             //  movq      0x1(%0,%1,1),%%xmm2
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "psubw     %%xmm2,%%xmm1                   \n"
>-    "movq      " MEMACCESS2(0x2,0) ",%%xmm2    \n"
>-    MEMOPREG(movq,0x02,0,1,1,xmm3)             //  movq      0x2(%0,%1,1),%%xmm3
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "punpcklbw %%xmm5,%%xmm3                   \n"
>-    "psubw     %%xmm3,%%xmm2                   \n"
>-    "paddw     %%xmm2,%%xmm0                   \n"
>-    "paddw     %%xmm1,%%xmm0                   \n"
>-    "paddw     %%xmm1,%%xmm0                   \n"
>-    "pxor      %%xmm1,%%xmm1                   \n"
>-    "psubw     %%xmm0,%%xmm1                   \n"
>-    "pmaxsw    %%xmm1,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    MEMOPMEM(movq,xmm0,0x00,0,2,1)             //  movq      %%xmm0,(%0,%2,1)
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "sub       $0x8,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_y0),      // %0
>-    "+r"(src_y1),      // %1
>-    "+r"(dst_sobely),  // %2
>-    "+r"(width)        // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm0                     \n"
>+      "movq      0x00(%0,%1,1),%%xmm1            \n"
>+      "punpcklbw %%xmm5,%%xmm0                   \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "psubw     %%xmm1,%%xmm0                   \n"
>+      "movq      0x1(%0),%%xmm1                  \n"
>+      "movq      0x01(%0,%1,1),%%xmm2            \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "psubw     %%xmm2,%%xmm1                   \n"
>+      "movq      0x2(%0),%%xmm2                  \n"
>+      "movq      0x02(%0,%1,1),%%xmm3            \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "punpcklbw %%xmm5,%%xmm3                   \n"
>+      "psubw     %%xmm3,%%xmm2                   \n"
>+      "paddw     %%xmm2,%%xmm0                   \n"
>+      "paddw     %%xmm1,%%xmm0                   \n"
>+      "paddw     %%xmm1,%%xmm0                   \n"
>+      "pxor      %%xmm1,%%xmm1                   \n"
>+      "psubw     %%xmm0,%%xmm1                   \n"
>+      "pmaxsw    %%xmm1,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movq      %%xmm0,0x00(%0,%2,1)            \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "sub       $0x8,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_y0),      // %0
>+        "+r"(src_y1),      // %1
>+        "+r"(dst_sobely),  // %2
>+        "+r"(width)        // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SOBELYROW_SSE2
> 
>@@ -4772,83 +5324,79 @@ void SobelYRow_SSE2(const uint8* src_y0,
> // R = Sobel
> // G = Sobel
> // B = Sobel
>-void SobelRow_SSE2(const uint8* src_sobelx,
>-                   const uint8* src_sobely,
>-                   uint8* dst_argb,
>+void SobelRow_SSE2(const uint8_t* src_sobelx,
>+                   const uint8_t* src_sobely,
>+                   uint8_t* dst_argb,
>                    int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "pslld     $0x18,%%xmm5                    \n"
>+  asm volatile(
>+      "sub       %0,%1                           \n"
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "pslld     $0x18,%%xmm5                    \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,1,1,xmm1)           //  movdqu    (%0,%1,1),%%xmm1
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "punpcklbw %%xmm0,%%xmm2                   \n"
>-    "punpckhbw %%xmm0,%%xmm0                   \n"
>-    "movdqa    %%xmm2,%%xmm1                   \n"
>-    "punpcklwd %%xmm2,%%xmm1                   \n"
>-    "punpckhwd %%xmm2,%%xmm2                   \n"
>-    "por       %%xmm5,%%xmm1                   \n"
>-    "por       %%xmm5,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm3                   \n"
>-    "punpcklwd %%xmm0,%%xmm3                   \n"
>-    "punpckhwd %%xmm0,%%xmm0                   \n"
>-    "por       %%xmm5,%%xmm3                   \n"
>-    "por       %%xmm5,%%xmm0                   \n"
>-    "movdqu    %%xmm1," MEMACCESS(2) "         \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x10,2) "   \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x20,2) "   \n"
>-    "movdqu    %%xmm0," MEMACCESS2(0x30,2) "   \n"
>-    "lea       " MEMLEA(0x40,2) ",%2           \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_sobelx),  // %0
>-    "+r"(src_sobely),  // %1
>-    "+r"(dst_argb),    // %2
>-    "+r"(width)        // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%1,1),%%xmm1            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "punpcklbw %%xmm0,%%xmm2                   \n"
>+      "punpckhbw %%xmm0,%%xmm0                   \n"
>+      "movdqa    %%xmm2,%%xmm1                   \n"
>+      "punpcklwd %%xmm2,%%xmm1                   \n"
>+      "punpckhwd %%xmm2,%%xmm2                   \n"
>+      "por       %%xmm5,%%xmm1                   \n"
>+      "por       %%xmm5,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm3                   \n"
>+      "punpcklwd %%xmm0,%%xmm3                   \n"
>+      "punpckhwd %%xmm0,%%xmm0                   \n"
>+      "por       %%xmm5,%%xmm3                   \n"
>+      "por       %%xmm5,%%xmm0                   \n"
>+      "movdqu    %%xmm1,(%2)                     \n"
>+      "movdqu    %%xmm2,0x10(%2)                 \n"
>+      "movdqu    %%xmm3,0x20(%2)                 \n"
>+      "movdqu    %%xmm0,0x30(%2)                 \n"
>+      "lea       0x40(%2),%2                     \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_sobelx),  // %0
>+        "+r"(src_sobely),  // %1
>+        "+r"(dst_argb),    // %2
>+        "+r"(width)        // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SOBELROW_SSE2
> 
> #ifdef HAS_SOBELTOPLANEROW_SSE2
> // Adds Sobel X and Sobel Y and stores Sobel into a plane.
>-void SobelToPlaneRow_SSE2(const uint8* src_sobelx,
>-                          const uint8* src_sobely,
>-                          uint8* dst_y,
>+void SobelToPlaneRow_SSE2(const uint8_t* src_sobelx,
>+                          const uint8_t* src_sobely,
>+                          uint8_t* dst_y,
>                           int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "pslld     $0x18,%%xmm5                    \n"
>+  asm volatile(
>+      "sub       %0,%1                           \n"
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "pslld     $0x18,%%xmm5                    \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,1,1,xmm1)           //  movdqu    (%0,%1,1),%%xmm1
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_sobelx),  // %0
>-    "+r"(src_sobely),  // %1
>-    "+r"(dst_y),       // %2
>-    "+r"(width)        // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%1,1),%%xmm1            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_sobelx),  // %0
>+        "+r"(src_sobely),  // %1
>+        "+r"(dst_y),       // %2
>+        "+r"(width)        // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1");
> }
> #endif  // HAS_SOBELTOPLANEROW_SSE2
> 
>@@ -4858,1179 +5406,1123 @@ void SobelToPlaneRow_SSE2(const uint8* src_sobelx,
> // R = Sobel X
> // G = Sobel
> // B = Sobel Y
>-void SobelXYRow_SSE2(const uint8* src_sobelx,
>-                     const uint8* src_sobely,
>-                     uint8* dst_argb,
>+void SobelXYRow_SSE2(const uint8_t* src_sobelx,
>+                     const uint8_t* src_sobely,
>+                     uint8_t* dst_argb,
>                      int width) {
>-  asm volatile (
>-    "sub       %0,%1                           \n"
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+  asm volatile(
>+      "sub       %0,%1                           \n"
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
> 
>-    // 8 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,1,1,xmm1)           //  movdqu    (%0,%1,1),%%xmm1
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "paddusb   %%xmm1,%%xmm2                   \n"
>-    "movdqa    %%xmm0,%%xmm3                   \n"
>-    "punpcklbw %%xmm5,%%xmm3                   \n"
>-    "punpckhbw %%xmm5,%%xmm0                   \n"
>-    "movdqa    %%xmm1,%%xmm4                   \n"
>-    "punpcklbw %%xmm2,%%xmm4                   \n"
>-    "punpckhbw %%xmm2,%%xmm1                   \n"
>-    "movdqa    %%xmm4,%%xmm6                   \n"
>-    "punpcklwd %%xmm3,%%xmm6                   \n"
>-    "punpckhwd %%xmm3,%%xmm4                   \n"
>-    "movdqa    %%xmm1,%%xmm7                   \n"
>-    "punpcklwd %%xmm0,%%xmm7                   \n"
>-    "punpckhwd %%xmm0,%%xmm1                   \n"
>-    "movdqu    %%xmm6," MEMACCESS(2) "         \n"
>-    "movdqu    %%xmm4," MEMACCESS2(0x10,2) "   \n"
>-    "movdqu    %%xmm7," MEMACCESS2(0x20,2) "   \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x30,2) "   \n"
>-    "lea       " MEMLEA(0x40,2) ",%2           \n"
>-    "sub       $0x10,%3                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_sobelx),  // %0
>-    "+r"(src_sobely),  // %1
>-    "+r"(dst_argb),    // %2
>-    "+r"(width)        // %3
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      // 8 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%1,1),%%xmm1            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "paddusb   %%xmm1,%%xmm2                   \n"
>+      "movdqa    %%xmm0,%%xmm3                   \n"
>+      "punpcklbw %%xmm5,%%xmm3                   \n"
>+      "punpckhbw %%xmm5,%%xmm0                   \n"
>+      "movdqa    %%xmm1,%%xmm4                   \n"
>+      "punpcklbw %%xmm2,%%xmm4                   \n"
>+      "punpckhbw %%xmm2,%%xmm1                   \n"
>+      "movdqa    %%xmm4,%%xmm6                   \n"
>+      "punpcklwd %%xmm3,%%xmm6                   \n"
>+      "punpckhwd %%xmm3,%%xmm4                   \n"
>+      "movdqa    %%xmm1,%%xmm7                   \n"
>+      "punpcklwd %%xmm0,%%xmm7                   \n"
>+      "punpckhwd %%xmm0,%%xmm1                   \n"
>+      "movdqu    %%xmm6,(%2)                     \n"
>+      "movdqu    %%xmm4,0x10(%2)                 \n"
>+      "movdqu    %%xmm7,0x20(%2)                 \n"
>+      "movdqu    %%xmm1,0x30(%2)                 \n"
>+      "lea       0x40(%2),%2                     \n"
>+      "sub       $0x10,%3                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_sobelx),  // %0
>+        "+r"(src_sobely),  // %1
>+        "+r"(dst_argb),    // %2
>+        "+r"(width)        // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_SOBELXYROW_SSE2
> 
> #ifdef HAS_COMPUTECUMULATIVESUMROW_SSE2
> // Creates a table of cumulative sums where each value is a sum of all values
> // above and to the left of the value, inclusive of the value.
>-void ComputeCumulativeSumRow_SSE2(const uint8* row,
>-                                  int32* cumsum,
>-                                  const int32* previous_cumsum,
>+void ComputeCumulativeSumRow_SSE2(const uint8_t* row,
>+                                  int32_t* cumsum,
>+                                  const int32_t* previous_cumsum,
>                                   int width) {
>-  asm volatile (
>-    "pxor      %%xmm0,%%xmm0                   \n"
>-    "pxor      %%xmm1,%%xmm1                   \n"
>-    "sub       $0x4,%3                         \n"
>-    "jl        49f                             \n"
>-    "test      $0xf,%1                         \n"
>-    "jne       49f                             \n"
>-
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "40:                                       \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm2,%%xmm4                   \n"
>-    "punpcklbw %%xmm1,%%xmm2                   \n"
>-    "movdqa    %%xmm2,%%xmm3                   \n"
>-    "punpcklwd %%xmm1,%%xmm2                   \n"
>-    "punpckhwd %%xmm1,%%xmm3                   \n"
>-    "punpckhbw %%xmm1,%%xmm4                   \n"
>-    "movdqa    %%xmm4,%%xmm5                   \n"
>-    "punpcklwd %%xmm1,%%xmm4                   \n"
>-    "punpckhwd %%xmm1,%%xmm5                   \n"
>-    "paddd     %%xmm2,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(2) ",%%xmm2         \n"
>-    "paddd     %%xmm0,%%xmm2                   \n"
>-    "paddd     %%xmm3,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x10,2) ",%%xmm3   \n"
>-    "paddd     %%xmm0,%%xmm3                   \n"
>-    "paddd     %%xmm4,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x20,2) ",%%xmm4   \n"
>-    "paddd     %%xmm0,%%xmm4                   \n"
>-    "paddd     %%xmm5,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS2(0x30,2) ",%%xmm5   \n"
>-    "lea       " MEMLEA(0x40,2) ",%2           \n"
>-    "paddd     %%xmm0,%%xmm5                   \n"
>-    "movdqu    %%xmm2," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm3," MEMACCESS2(0x10,1) "   \n"
>-    "movdqu    %%xmm4," MEMACCESS2(0x20,1) "   \n"
>-    "movdqu    %%xmm5," MEMACCESS2(0x30,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jge       40b                             \n"
>-
>-    "49:                                       \n"
>-    "add       $0x3,%3                         \n"
>-    "jl        19f                             \n"
>-
>-    // 1 pixel loop.
>-    LABELALIGN
>-    "10:                                       \n"
>-    "movd      " MEMACCESS(0) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x4,0) ",%0            \n"
>-    "punpcklbw %%xmm1,%%xmm2                   \n"
>-    "punpcklwd %%xmm1,%%xmm2                   \n"
>-    "paddd     %%xmm2,%%xmm0                   \n"
>-    "movdqu    " MEMACCESS(2) ",%%xmm2         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "paddd     %%xmm0,%%xmm2                   \n"
>-    "movdqu    %%xmm2," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x1,%3                         \n"
>-    "jge       10b                             \n"
>-
>-    "19:                                       \n"
>-  : "+r"(row),  // %0
>-    "+r"(cumsum),  // %1
>-    "+r"(previous_cumsum),  // %2
>-    "+r"(width)  // %3
>-  :
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "pxor      %%xmm0,%%xmm0                   \n"
>+      "pxor      %%xmm1,%%xmm1                   \n"
>+      "sub       $0x4,%3                         \n"
>+      "jl        49f                             \n"
>+      "test      $0xf,%1                         \n"
>+      "jne       49f                             \n"
>+
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "40:                                       \n"
>+      "movdqu    (%0),%%xmm2                     \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movdqa    %%xmm2,%%xmm4                   \n"
>+      "punpcklbw %%xmm1,%%xmm2                   \n"
>+      "movdqa    %%xmm2,%%xmm3                   \n"
>+      "punpcklwd %%xmm1,%%xmm2                   \n"
>+      "punpckhwd %%xmm1,%%xmm3                   \n"
>+      "punpckhbw %%xmm1,%%xmm4                   \n"
>+      "movdqa    %%xmm4,%%xmm5                   \n"
>+      "punpcklwd %%xmm1,%%xmm4                   \n"
>+      "punpckhwd %%xmm1,%%xmm5                   \n"
>+      "paddd     %%xmm2,%%xmm0                   \n"
>+      "movdqu    (%2),%%xmm2                     \n"
>+      "paddd     %%xmm0,%%xmm2                   \n"
>+      "paddd     %%xmm3,%%xmm0                   \n"
>+      "movdqu    0x10(%2),%%xmm3                 \n"
>+      "paddd     %%xmm0,%%xmm3                   \n"
>+      "paddd     %%xmm4,%%xmm0                   \n"
>+      "movdqu    0x20(%2),%%xmm4                 \n"
>+      "paddd     %%xmm0,%%xmm4                   \n"
>+      "paddd     %%xmm5,%%xmm0                   \n"
>+      "movdqu    0x30(%2),%%xmm5                 \n"
>+      "lea       0x40(%2),%2                     \n"
>+      "paddd     %%xmm0,%%xmm5                   \n"
>+      "movdqu    %%xmm2,(%1)                     \n"
>+      "movdqu    %%xmm3,0x10(%1)                 \n"
>+      "movdqu    %%xmm4,0x20(%1)                 \n"
>+      "movdqu    %%xmm5,0x30(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jge       40b                             \n"
>+
>+      "49:                                       \n"
>+      "add       $0x3,%3                         \n"
>+      "jl        19f                             \n"
>+
>+      // 1 pixel loop.
>+      LABELALIGN
>+      "10:                                       \n"
>+      "movd      (%0),%%xmm2                     \n"
>+      "lea       0x4(%0),%0                      \n"
>+      "punpcklbw %%xmm1,%%xmm2                   \n"
>+      "punpcklwd %%xmm1,%%xmm2                   \n"
>+      "paddd     %%xmm2,%%xmm0                   \n"
>+      "movdqu    (%2),%%xmm2                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "paddd     %%xmm0,%%xmm2                   \n"
>+      "movdqu    %%xmm2,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x1,%3                         \n"
>+      "jge       10b                             \n"
>+
>+      "19:                                       \n"
>+      : "+r"(row),              // %0
>+        "+r"(cumsum),           // %1
>+        "+r"(previous_cumsum),  // %2
>+        "+r"(width)             // %3
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_COMPUTECUMULATIVESUMROW_SSE2
> 
> #ifdef HAS_CUMULATIVESUMTOAVERAGEROW_SSE2
>-void CumulativeSumToAverageRow_SSE2(const int32* topleft,
>-                                    const int32* botleft,
>+void CumulativeSumToAverageRow_SSE2(const int32_t* topleft,
>+                                    const int32_t* botleft,
>                                     int width,
>                                     int area,
>-                                    uint8* dst,
>+                                    uint8_t* dst,
>                                     int count) {
>-  asm volatile (
>-    "movd      %5,%%xmm5                       \n"
>-    "cvtdq2ps  %%xmm5,%%xmm5                   \n"
>-    "rcpss     %%xmm5,%%xmm4                   \n"
>-    "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>-    "sub       $0x4,%3                         \n"
>-    "jl        49f                             \n"
>-    "cmpl      $0x80,%5                        \n"
>-    "ja        40f                             \n"
>-
>-    "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>-    "pcmpeqb   %%xmm6,%%xmm6                   \n"
>-    "psrld     $0x10,%%xmm6                    \n"
>-    "cvtdq2ps  %%xmm6,%%xmm6                   \n"
>-    "addps     %%xmm6,%%xmm5                   \n"
>-    "mulps     %%xmm4,%%xmm5                   \n"
>-    "cvtps2dq  %%xmm5,%%xmm5                   \n"
>-    "packssdw  %%xmm5,%%xmm5                   \n"
>-
>-    // 4 pixel small loop.
>-    LABELALIGN
>-  "4:                                         \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    MEMOPREG(psubd,0x00,0,4,4,xmm0)            // psubd    0x00(%0,%4,4),%%xmm0
>-    MEMOPREG(psubd,0x10,0,4,4,xmm1)            // psubd    0x10(%0,%4,4),%%xmm1
>-    MEMOPREG(psubd,0x20,0,4,4,xmm2)            // psubd    0x20(%0,%4,4),%%xmm2
>-    MEMOPREG(psubd,0x30,0,4,4,xmm3)            // psubd    0x30(%0,%4,4),%%xmm3
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "psubd     " MEMACCESS(1) ",%%xmm0         \n"
>-    "psubd     " MEMACCESS2(0x10,1) ",%%xmm1   \n"
>-    "psubd     " MEMACCESS2(0x20,1) ",%%xmm2   \n"
>-    "psubd     " MEMACCESS2(0x30,1) ",%%xmm3   \n"
>-    MEMOPREG(paddd,0x00,1,4,4,xmm0)            // paddd    0x00(%1,%4,4),%%xmm0
>-    MEMOPREG(paddd,0x10,1,4,4,xmm1)            // paddd    0x10(%1,%4,4),%%xmm1
>-    MEMOPREG(paddd,0x20,1,4,4,xmm2)            // paddd    0x20(%1,%4,4),%%xmm2
>-    MEMOPREG(paddd,0x30,1,4,4,xmm3)            // paddd    0x30(%1,%4,4),%%xmm3
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "packssdw  %%xmm1,%%xmm0                   \n"
>-    "packssdw  %%xmm3,%%xmm2                   \n"
>-    "pmulhuw   %%xmm5,%%xmm0                   \n"
>-    "pmulhuw   %%xmm5,%%xmm2                   \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jge       4b                              \n"
>-    "jmp       49f                             \n"
>-
>-  // 4 pixel loop                              \n"
>-    LABELALIGN
>-  "40:                                         \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "movdqu    " MEMACCESS2(0x20,0) ",%%xmm2   \n"
>-    "movdqu    " MEMACCESS2(0x30,0) ",%%xmm3   \n"
>-    MEMOPREG(psubd,0x00,0,4,4,xmm0)            // psubd    0x00(%0,%4,4),%%xmm0
>-    MEMOPREG(psubd,0x10,0,4,4,xmm1)            // psubd    0x10(%0,%4,4),%%xmm1
>-    MEMOPREG(psubd,0x20,0,4,4,xmm2)            // psubd    0x20(%0,%4,4),%%xmm2
>-    MEMOPREG(psubd,0x30,0,4,4,xmm3)            // psubd    0x30(%0,%4,4),%%xmm3
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "psubd     " MEMACCESS(1) ",%%xmm0         \n"
>-    "psubd     " MEMACCESS2(0x10,1) ",%%xmm1   \n"
>-    "psubd     " MEMACCESS2(0x20,1) ",%%xmm2   \n"
>-    "psubd     " MEMACCESS2(0x30,1) ",%%xmm3   \n"
>-    MEMOPREG(paddd,0x00,1,4,4,xmm0)            // paddd    0x00(%1,%4,4),%%xmm0
>-    MEMOPREG(paddd,0x10,1,4,4,xmm1)            // paddd    0x10(%1,%4,4),%%xmm1
>-    MEMOPREG(paddd,0x20,1,4,4,xmm2)            // paddd    0x20(%1,%4,4),%%xmm2
>-    MEMOPREG(paddd,0x30,1,4,4,xmm3)            // paddd    0x30(%1,%4,4),%%xmm3
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>-    "cvtdq2ps  %%xmm1,%%xmm1                   \n"
>-    "mulps     %%xmm4,%%xmm0                   \n"
>-    "mulps     %%xmm4,%%xmm1                   \n"
>-    "cvtdq2ps  %%xmm2,%%xmm2                   \n"
>-    "cvtdq2ps  %%xmm3,%%xmm3                   \n"
>-    "mulps     %%xmm4,%%xmm2                   \n"
>-    "mulps     %%xmm4,%%xmm3                   \n"
>-    "cvtps2dq  %%xmm0,%%xmm0                   \n"
>-    "cvtps2dq  %%xmm1,%%xmm1                   \n"
>-    "cvtps2dq  %%xmm2,%%xmm2                   \n"
>-    "cvtps2dq  %%xmm3,%%xmm3                   \n"
>-    "packssdw  %%xmm1,%%xmm0                   \n"
>-    "packssdw  %%xmm3,%%xmm2                   \n"
>-    "packuswb  %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jge       40b                             \n"
>-
>-  "49:                                         \n"
>-    "add       $0x3,%3                         \n"
>-    "jl        19f                             \n"
>-
>-  // 1 pixel loop                              \n"
>-    LABELALIGN
>-  "10:                                         \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(psubd,0x00,0,4,4,xmm0)            // psubd    0x00(%0,%4,4),%%xmm0
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "psubd     " MEMACCESS(1) ",%%xmm0         \n"
>-    MEMOPREG(paddd,0x00,1,4,4,xmm0)            // paddd    0x00(%1,%4,4),%%xmm0
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>-    "mulps     %%xmm4,%%xmm0                   \n"
>-    "cvtps2dq  %%xmm0,%%xmm0                   \n"
>-    "packssdw  %%xmm0,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movd      %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x4,2) ",%2            \n"
>-    "sub       $0x1,%3                         \n"
>-    "jge       10b                             \n"
>-  "19:                                         \n"
>-  : "+r"(topleft),  // %0
>-    "+r"(botleft),  // %1
>-    "+r"(dst),      // %2
>-    "+rm"(count)    // %3
>-  : "r"((intptr_t)(width)),  // %4
>-    "rm"(area)     // %5
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+  asm volatile(
>+      "movd      %5,%%xmm5                       \n"
>+      "cvtdq2ps  %%xmm5,%%xmm5                   \n"
>+      "rcpss     %%xmm5,%%xmm4                   \n"
>+      "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>+      "sub       $0x4,%3                         \n"
>+      "jl        49f                             \n"
>+      "cmpl      $0x80,%5                        \n"
>+      "ja        40f                             \n"
>+
>+      "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>+      "pcmpeqb   %%xmm6,%%xmm6                   \n"
>+      "psrld     $0x10,%%xmm6                    \n"
>+      "cvtdq2ps  %%xmm6,%%xmm6                   \n"
>+      "addps     %%xmm6,%%xmm5                   \n"
>+      "mulps     %%xmm4,%%xmm5                   \n"
>+      "cvtps2dq  %%xmm5,%%xmm5                   \n"
>+      "packssdw  %%xmm5,%%xmm5                   \n"
>+
>+      // 4 pixel small loop.
>+      LABELALIGN
>+      "4:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "psubd     0x00(%0,%4,4),%%xmm0            \n"
>+      "psubd     0x10(%0,%4,4),%%xmm1            \n"
>+      "psubd     0x20(%0,%4,4),%%xmm2            \n"
>+      "psubd     0x30(%0,%4,4),%%xmm3            \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "psubd     (%1),%%xmm0                     \n"
>+      "psubd     0x10(%1),%%xmm1                 \n"
>+      "psubd     0x20(%1),%%xmm2                 \n"
>+      "psubd     0x30(%1),%%xmm3                 \n"
>+      "paddd     0x00(%1,%4,4),%%xmm0            \n"
>+      "paddd     0x10(%1,%4,4),%%xmm1            \n"
>+      "paddd     0x20(%1,%4,4),%%xmm2            \n"
>+      "paddd     0x30(%1,%4,4),%%xmm3            \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "packssdw  %%xmm1,%%xmm0                   \n"
>+      "packssdw  %%xmm3,%%xmm2                   \n"
>+      "pmulhuw   %%xmm5,%%xmm0                   \n"
>+      "pmulhuw   %%xmm5,%%xmm2                   \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jge       4b                              \n"
>+      "jmp       49f                             \n"
>+
>+      // 4 pixel loop
>+      LABELALIGN
>+      "40:                                       \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x20(%0),%%xmm2                 \n"
>+      "movdqu    0x30(%0),%%xmm3                 \n"
>+      "psubd     0x00(%0,%4,4),%%xmm0            \n"
>+      "psubd     0x10(%0,%4,4),%%xmm1            \n"
>+      "psubd     0x20(%0,%4,4),%%xmm2            \n"
>+      "psubd     0x30(%0,%4,4),%%xmm3            \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "psubd     (%1),%%xmm0                     \n"
>+      "psubd     0x10(%1),%%xmm1                 \n"
>+      "psubd     0x20(%1),%%xmm2                 \n"
>+      "psubd     0x30(%1),%%xmm3                 \n"
>+      "paddd     0x00(%1,%4,4),%%xmm0            \n"
>+      "paddd     0x10(%1,%4,4),%%xmm1            \n"
>+      "paddd     0x20(%1,%4,4),%%xmm2            \n"
>+      "paddd     0x30(%1,%4,4),%%xmm3            \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>+      "cvtdq2ps  %%xmm1,%%xmm1                   \n"
>+      "mulps     %%xmm4,%%xmm0                   \n"
>+      "mulps     %%xmm4,%%xmm1                   \n"
>+      "cvtdq2ps  %%xmm2,%%xmm2                   \n"
>+      "cvtdq2ps  %%xmm3,%%xmm3                   \n"
>+      "mulps     %%xmm4,%%xmm2                   \n"
>+      "mulps     %%xmm4,%%xmm3                   \n"
>+      "cvtps2dq  %%xmm0,%%xmm0                   \n"
>+      "cvtps2dq  %%xmm1,%%xmm1                   \n"
>+      "cvtps2dq  %%xmm2,%%xmm2                   \n"
>+      "cvtps2dq  %%xmm3,%%xmm3                   \n"
>+      "packssdw  %%xmm1,%%xmm0                   \n"
>+      "packssdw  %%xmm3,%%xmm2                   \n"
>+      "packuswb  %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jge       40b                             \n"
>+
>+      "49:                                       \n"
>+      "add       $0x3,%3                         \n"
>+      "jl        19f                             \n"
>+
>+      // 1 pixel loop
>+      LABELALIGN
>+      "10:                                       \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "psubd     0x00(%0,%4,4),%%xmm0            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "psubd     (%1),%%xmm0                     \n"
>+      "paddd     0x00(%1,%4,4),%%xmm0            \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>+      "mulps     %%xmm4,%%xmm0                   \n"
>+      "cvtps2dq  %%xmm0,%%xmm0                   \n"
>+      "packssdw  %%xmm0,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movd      %%xmm0,(%2)                     \n"
>+      "lea       0x4(%2),%2                      \n"
>+      "sub       $0x1,%3                         \n"
>+      "jge       10b                             \n"
>+      "19:                                       \n"
>+      : "+r"(topleft),           // %0
>+        "+r"(botleft),           // %1
>+        "+r"(dst),               // %2
>+        "+rm"(count)             // %3
>+      : "r"((intptr_t)(width)),  // %4
>+        "rm"(area)               // %5
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_CUMULATIVESUMTOAVERAGEROW_SSE2
> 
> #ifdef HAS_ARGBAFFINEROW_SSE2
> // Copy ARGB pixels from source image with slope to a row of destination.
> LIBYUV_API
>-void ARGBAffineRow_SSE2(const uint8* src_argb,
>+void ARGBAffineRow_SSE2(const uint8_t* src_argb,
>                         int src_argb_stride,
>-                        uint8* dst_argb,
>+                        uint8_t* dst_argb,
>                         const float* src_dudv,
>                         int width) {
>   intptr_t src_argb_stride_temp = src_argb_stride;
>   intptr_t temp;
>-  asm volatile (
>-    "movq      " MEMACCESS(3) ",%%xmm2         \n"
>-    "movq      " MEMACCESS2(0x08,3) ",%%xmm7   \n"
>-    "shl       $0x10,%1                        \n"
>-    "add       $0x4,%1                         \n"
>-    "movd      %1,%%xmm5                       \n"
>-    "sub       $0x4,%4                         \n"
>-    "jl        49f                             \n"
>-
>-    "pshufd    $0x44,%%xmm7,%%xmm7             \n"
>-    "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>-    "movdqa    %%xmm2,%%xmm0                   \n"
>-    "addps     %%xmm7,%%xmm0                   \n"
>-    "movlhps   %%xmm0,%%xmm2                   \n"
>-    "movdqa    %%xmm7,%%xmm4                   \n"
>-    "addps     %%xmm4,%%xmm4                   \n"
>-    "movdqa    %%xmm2,%%xmm3                   \n"
>-    "addps     %%xmm4,%%xmm3                   \n"
>-    "addps     %%xmm4,%%xmm4                   \n"
>-
>-  // 4 pixel loop                              \n"
>-    LABELALIGN
>-  "40:                                         \n"
>-    "cvttps2dq %%xmm2,%%xmm0                   \n"  // x, y float to int first 2
>-    "cvttps2dq %%xmm3,%%xmm1                   \n"  // x, y float to int next 2
>-    "packssdw  %%xmm1,%%xmm0                   \n"  // x, y as 8 shorts
>-    "pmaddwd   %%xmm5,%%xmm0                   \n"  // off = x * 4 + y * stride
>-    "movd      %%xmm0,%k1                      \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-    "movd      %%xmm0,%k5                      \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-    MEMOPREG(movd,0x00,0,1,1,xmm1)             //  movd      (%0,%1,1),%%xmm1
>-    MEMOPREG(movd,0x00,0,5,1,xmm6)             //  movd      (%0,%5,1),%%xmm6
>-    "punpckldq %%xmm6,%%xmm1                   \n"
>-    "addps     %%xmm4,%%xmm2                   \n"
>-    "movq      %%xmm1," MEMACCESS(2) "         \n"
>-    "movd      %%xmm0,%k1                      \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-    "movd      %%xmm0,%k5                      \n"
>-    MEMOPREG(movd,0x00,0,1,1,xmm0)             //  movd      (%0,%1,1),%%xmm0
>-    MEMOPREG(movd,0x00,0,5,1,xmm6)             //  movd      (%0,%5,1),%%xmm6
>-    "punpckldq %%xmm6,%%xmm0                   \n"
>-    "addps     %%xmm4,%%xmm3                   \n"
>-    "movq      %%xmm0," MEMACCESS2(0x08,2) "   \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%4                         \n"
>-    "jge       40b                             \n"
>-
>-  "49:                                         \n"
>-    "add       $0x3,%4                         \n"
>-    "jl        19f                             \n"
>-
>-  // 1 pixel loop                              \n"
>-    LABELALIGN
>-  "10:                                         \n"
>-    "cvttps2dq %%xmm2,%%xmm0                   \n"
>-    "packssdw  %%xmm0,%%xmm0                   \n"
>-    "pmaddwd   %%xmm5,%%xmm0                   \n"
>-    "addps     %%xmm7,%%xmm2                   \n"
>-    "movd      %%xmm0,%k1                      \n"
>-    MEMOPREG(movd,0x00,0,1,1,xmm0)             //  movd      (%0,%1,1),%%xmm0
>-    "movd      %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x04,2) ",%2           \n"
>-    "sub       $0x1,%4                         \n"
>-    "jge       10b                             \n"
>-  "19:                                         \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(src_argb_stride_temp),  // %1
>-    "+r"(dst_argb),  // %2
>-    "+r"(src_dudv),  // %3
>-    "+rm"(width),    // %4
>-    "=&r"(temp)      // %5
>-  :
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+      "movq      (%3),%%xmm2                     \n"
>+      "movq      0x08(%3),%%xmm7                 \n"
>+      "shl       $0x10,%1                        \n"
>+      "add       $0x4,%1                         \n"
>+      "movd      %1,%%xmm5                       \n"
>+      "sub       $0x4,%4                         \n"
>+      "jl        49f                             \n"
>+
>+      "pshufd    $0x44,%%xmm7,%%xmm7             \n"
>+      "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>+      "movdqa    %%xmm2,%%xmm0                   \n"
>+      "addps     %%xmm7,%%xmm0                   \n"
>+      "movlhps   %%xmm0,%%xmm2                   \n"
>+      "movdqa    %%xmm7,%%xmm4                   \n"
>+      "addps     %%xmm4,%%xmm4                   \n"
>+      "movdqa    %%xmm2,%%xmm3                   \n"
>+      "addps     %%xmm4,%%xmm3                   \n"
>+      "addps     %%xmm4,%%xmm4                   \n"
>+
>+      // 4 pixel loop
>+      LABELALIGN
>+      "40:                                       \n"
>+      "cvttps2dq %%xmm2,%%xmm0                   \n"  // x,y float->int first 2
>+      "cvttps2dq %%xmm3,%%xmm1                   \n"  // x,y float->int next 2
>+      "packssdw  %%xmm1,%%xmm0                   \n"  // x, y as 8 shorts
>+      "pmaddwd   %%xmm5,%%xmm0                   \n"  // off = x*4 + y*stride
>+      "movd      %%xmm0,%k1                      \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+      "movd      %%xmm0,%k5                      \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+      "movd      0x00(%0,%1,1),%%xmm1            \n"
>+      "movd      0x00(%0,%5,1),%%xmm6            \n"
>+      "punpckldq %%xmm6,%%xmm1                   \n"
>+      "addps     %%xmm4,%%xmm2                   \n"
>+      "movq      %%xmm1,(%2)                     \n"
>+      "movd      %%xmm0,%k1                      \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+      "movd      %%xmm0,%k5                      \n"
>+      "movd      0x00(%0,%1,1),%%xmm0            \n"
>+      "movd      0x00(%0,%5,1),%%xmm6            \n"
>+      "punpckldq %%xmm6,%%xmm0                   \n"
>+      "addps     %%xmm4,%%xmm3                   \n"
>+      "movq      %%xmm0,0x08(%2)                 \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%4                         \n"
>+      "jge       40b                             \n"
>+
>+      "49:                                       \n"
>+      "add       $0x3,%4                         \n"
>+      "jl        19f                             \n"
>+
>+      // 1 pixel loop
>+      LABELALIGN
>+      "10:                                       \n"
>+      "cvttps2dq %%xmm2,%%xmm0                   \n"
>+      "packssdw  %%xmm0,%%xmm0                   \n"
>+      "pmaddwd   %%xmm5,%%xmm0                   \n"
>+      "addps     %%xmm7,%%xmm2                   \n"
>+      "movd      %%xmm0,%k1                      \n"
>+      "movd      0x00(%0,%1,1),%%xmm0            \n"
>+      "movd      %%xmm0,(%2)                     \n"
>+      "lea       0x04(%2),%2                     \n"
>+      "sub       $0x1,%4                         \n"
>+      "jge       10b                             \n"
>+      "19:                                       \n"
>+      : "+r"(src_argb),              // %0
>+        "+r"(src_argb_stride_temp),  // %1
>+        "+r"(dst_argb),              // %2
>+        "+r"(src_dudv),              // %3
>+        "+rm"(width),                // %4
>+        "=&r"(temp)                  // %5
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBAFFINEROW_SSE2
> 
> #ifdef HAS_INTERPOLATEROW_SSSE3
> // Bilinear filter 16x2 -> 16x1
>-void InterpolateRow_SSSE3(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void InterpolateRow_SSSE3(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>                           int dst_width,
>                           int source_y_fraction) {
>-  asm volatile (
>-    "sub       %1,%0                           \n"
>-    "cmp       $0x0,%3                         \n"
>-    "je        100f                            \n"
>-    "cmp       $0x80,%3                        \n"
>-    "je        50f                             \n"
>-
>-    "movd      %3,%%xmm0                       \n"
>-    "neg       %3                              \n"
>-    "add       $0x100,%3                       \n"
>-    "movd      %3,%%xmm5                       \n"
>-    "punpcklbw %%xmm0,%%xmm5                   \n"
>-    "punpcklwd %%xmm5,%%xmm5                   \n"
>-    "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>-    "mov       $0x80808080,%%eax               \n"
>-    "movd      %%eax,%%xmm4                    \n"
>-    "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>-
>-    // General purpose row blend.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,1,4,1,xmm2)
>-    "movdqa     %%xmm0,%%xmm1                  \n"
>-    "punpcklbw  %%xmm2,%%xmm0                  \n"
>-    "punpckhbw  %%xmm2,%%xmm1                  \n"
>-    "psubb      %%xmm4,%%xmm0                  \n"
>-    "psubb      %%xmm4,%%xmm1                  \n"
>-    "movdqa     %%xmm5,%%xmm2                  \n"
>-    "movdqa     %%xmm5,%%xmm3                  \n"
>-    "pmaddubsw  %%xmm0,%%xmm2                  \n"
>-    "pmaddubsw  %%xmm1,%%xmm3                  \n"
>-    "paddw      %%xmm4,%%xmm2                  \n"
>-    "paddw      %%xmm4,%%xmm3                  \n"
>-    "psrlw      $0x8,%%xmm2                    \n"
>-    "psrlw      $0x8,%%xmm3                    \n"
>-    "packuswb   %%xmm3,%%xmm2                  \n"
>-    MEMOPMEM(movdqu,xmm2,0x00,1,0,1)
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-    "jmp       99f                             \n"
>+  asm volatile(
>+      "sub       %1,%0                           \n"
>+      "cmp       $0x0,%3                         \n"
>+      "je        100f                            \n"
>+      "cmp       $0x80,%3                        \n"
>+      "je        50f                             \n"
>+
>+      "movd      %3,%%xmm0                       \n"
>+      "neg       %3                              \n"
>+      "add       $0x100,%3                       \n"
>+      "movd      %3,%%xmm5                       \n"
>+      "punpcklbw %%xmm0,%%xmm5                   \n"
>+      "punpcklwd %%xmm5,%%xmm5                   \n"
>+      "pshufd    $0x0,%%xmm5,%%xmm5              \n"
>+      "mov       $0x80808080,%%eax               \n"
>+      "movd      %%eax,%%xmm4                    \n"
>+      "pshufd    $0x0,%%xmm4,%%xmm4              \n"
>+
>+      // General purpose row blend.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "movdqu    0x00(%1,%4,1),%%xmm2            \n"
>+      "movdqa     %%xmm0,%%xmm1                  \n"
>+      "punpcklbw  %%xmm2,%%xmm0                  \n"
>+      "punpckhbw  %%xmm2,%%xmm1                  \n"
>+      "psubb      %%xmm4,%%xmm0                  \n"
>+      "psubb      %%xmm4,%%xmm1                  \n"
>+      "movdqa     %%xmm5,%%xmm2                  \n"
>+      "movdqa     %%xmm5,%%xmm3                  \n"
>+      "pmaddubsw  %%xmm0,%%xmm2                  \n"
>+      "pmaddubsw  %%xmm1,%%xmm3                  \n"
>+      "paddw      %%xmm4,%%xmm2                  \n"
>+      "paddw      %%xmm4,%%xmm3                  \n"
>+      "psrlw      $0x8,%%xmm2                    \n"
>+      "psrlw      $0x8,%%xmm3                    \n"
>+      "packuswb   %%xmm3,%%xmm2                  \n"
>+      "movdqu    %%xmm2,0x00(%1,%0,1)            \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      "jmp       99f                             \n"
> 
>-    // Blend 50 / 50.
>-    LABELALIGN
>-  "50:                                         \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,1,4,1,xmm1)
>-    "pavgb     %%xmm1,%%xmm0                   \n"
>-    MEMOPMEM(movdqu,xmm0,0x00,1,0,1)
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        50b                             \n"
>-    "jmp       99f                             \n"
>-
>-    // Blend 100 / 0 - Copy row unchanged.
>-    LABELALIGN
>-  "100:                                        \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    MEMOPMEM(movdqu,xmm0,0x00,1,0,1)
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        100b                            \n"
>-
>-  "99:                                         \n"
>-  : "+r"(dst_ptr),     // %0
>-    "+r"(src_ptr),     // %1
>-    "+rm"(dst_width),  // %2
>-    "+r"(source_y_fraction)  // %3
>-  : "r"((intptr_t)(src_stride))  // %4
>-  : "memory", "cc", "eax", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      // Blend 50 / 50.
>+      LABELALIGN
>+      "50:                                       \n"
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "movdqu    0x00(%1,%4,1),%%xmm1            \n"
>+      "pavgb     %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,0x00(%1,%0,1)            \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        50b                             \n"
>+      "jmp       99f                             \n"
>+
>+      // Blend 100 / 0 - Copy row unchanged.
>+      LABELALIGN
>+      "100:                                      \n"
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "movdqu    %%xmm0,0x00(%1,%0,1)            \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        100b                            \n"
>+
>+      "99:                                       \n"
>+      : "+r"(dst_ptr),               // %0
>+        "+r"(src_ptr),               // %1
>+        "+rm"(dst_width),            // %2
>+        "+r"(source_y_fraction)      // %3
>+      : "r"((intptr_t)(src_stride))  // %4
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_INTERPOLATEROW_SSSE3
> 
> #ifdef HAS_INTERPOLATEROW_AVX2
> // Bilinear filter 32x2 -> 32x1
>-void InterpolateRow_AVX2(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void InterpolateRow_AVX2(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>                          int dst_width,
>                          int source_y_fraction) {
>-  asm volatile (
>-    "cmp       $0x0,%3                         \n"
>-    "je        100f                            \n"
>-    "sub       %1,%0                           \n"
>-    "cmp       $0x80,%3                        \n"
>-    "je        50f                             \n"
>-
>-    "vmovd      %3,%%xmm0                      \n"
>-    "neg        %3                             \n"
>-    "add        $0x100,%3                      \n"
>-    "vmovd      %3,%%xmm5                      \n"
>-    "vpunpcklbw %%xmm0,%%xmm5,%%xmm5           \n"
>-    "vpunpcklwd %%xmm5,%%xmm5,%%xmm5           \n"
>-    "vbroadcastss %%xmm5,%%ymm5                \n"
>-    "mov        $0x80808080,%%eax              \n"
>-    "vmovd      %%eax,%%xmm4                   \n"
>-    "vbroadcastss %%xmm4,%%ymm4                \n"
>-
>-    // General purpose row blend.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(1) ",%%ymm0        \n"
>-    MEMOPREG(vmovdqu,0x00,1,4,1,ymm2)
>-    "vpunpckhbw %%ymm2,%%ymm0,%%ymm1           \n"
>-    "vpunpcklbw %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpsubb     %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpsubb     %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm1,%%ymm5,%%ymm1           \n"
>-    "vpmaddubsw %%ymm0,%%ymm5,%%ymm0           \n"
>-    "vpaddw     %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpaddw     %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>-    "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    MEMOPMEM(vmovdqu,ymm0,0x00,1,0,1)
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "jmp       99f                             \n"
>+  asm volatile(
>+      "cmp       $0x0,%3                         \n"
>+      "je        100f                            \n"
>+      "sub       %1,%0                           \n"
>+      "cmp       $0x80,%3                        \n"
>+      "je        50f                             \n"
>+
>+      "vmovd      %3,%%xmm0                      \n"
>+      "neg        %3                             \n"
>+      "add        $0x100,%3                      \n"
>+      "vmovd      %3,%%xmm5                      \n"
>+      "vpunpcklbw %%xmm0,%%xmm5,%%xmm5           \n"
>+      "vpunpcklwd %%xmm5,%%xmm5,%%xmm5           \n"
>+      "vbroadcastss %%xmm5,%%ymm5                \n"
>+      "mov        $0x80808080,%%eax              \n"
>+      "vmovd      %%eax,%%xmm4                   \n"
>+      "vbroadcastss %%xmm4,%%ymm4                \n"
> 
>-    // Blend 50 / 50.
>-    LABELALIGN
>-  "50:                                         \n"
>-    "vmovdqu    " MEMACCESS(1) ",%%ymm0        \n"
>-    VMEMOPREG(vpavgb,0x00,1,4,1,ymm0,ymm0)     // vpavgb (%1,%4,1),%%ymm0,%%ymm0
>-    MEMOPMEM(vmovdqu,ymm0,0x00,1,0,1)
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        50b                             \n"
>-    "jmp       99f                             \n"
>+      // General purpose row blend.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%1),%%ymm0                    \n"
>+      "vmovdqu    0x00(%1,%4,1),%%ymm2           \n"
>+      "vpunpckhbw %%ymm2,%%ymm0,%%ymm1           \n"
>+      "vpunpcklbw %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpsubb     %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpsubb     %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm1,%%ymm5,%%ymm1           \n"
>+      "vpmaddubsw %%ymm0,%%ymm5,%%ymm0           \n"
>+      "vpaddw     %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpaddw     %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>+      "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vmovdqu    %%ymm0,0x00(%1,%0,1)           \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x20,%2                       \n"
>+      "jg         1b                             \n"
>+      "jmp        99f                            \n"
> 
>-    // Blend 100 / 0 - Copy row unchanged.
>-    LABELALIGN
>-  "100:                                        \n"
>-    "rep movsb " MEMMOVESTRING(1,0) "          \n"
>-    "jmp       999f                            \n"
>+      // Blend 50 / 50.
>+      LABELALIGN
>+      "50:                                       \n"
>+      "vmovdqu   (%1),%%ymm0                     \n"
>+      "vpavgb    0x00(%1,%4,1),%%ymm0,%%ymm0     \n"
>+      "vmovdqu   %%ymm0,0x00(%1,%0,1)            \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        50b                             \n"
>+      "jmp       99f                             \n"
>+
>+      // Blend 100 / 0 - Copy row unchanged.
>+      LABELALIGN
>+      "100:                                      \n"
>+      "rep movsb                                 \n"
>+      "jmp       999f                            \n"
> 
>-  "99:                                         \n"
>-    "vzeroupper                                \n"
>-  "999:                                        \n"
>-  : "+D"(dst_ptr),    // %0
>-    "+S"(src_ptr),    // %1
>-    "+cm"(dst_width),  // %2
>-    "+r"(source_y_fraction)  // %3
>-  : "r"((intptr_t)(src_stride))  // %4
>-  : "memory", "cc", "eax", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm4", "xmm5"
>-  );
>+      "99:                                       \n"
>+      "vzeroupper                                \n"
>+      "999:                                      \n"
>+      : "+D"(dst_ptr),               // %0
>+        "+S"(src_ptr),               // %1
>+        "+cm"(dst_width),            // %2
>+        "+r"(source_y_fraction)      // %3
>+      : "r"((intptr_t)(src_stride))  // %4
>+      : "memory", "cc", "eax", "xmm0", "xmm1", "xmm2", "xmm4", "xmm5");
> }
> #endif  // HAS_INTERPOLATEROW_AVX2
> 
> #ifdef HAS_ARGBSHUFFLEROW_SSSE3
> // For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-void ARGBShuffleRow_SSSE3(const uint8* src_argb,
>-                          uint8* dst_argb,
>-                          const uint8* shuffler,
>+void ARGBShuffleRow_SSSE3(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          const uint8_t* shuffler,
>                           int width) {
>-  asm volatile (
>-    "movdqu    " MEMACCESS(3) ",%%xmm5         \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pshufb    %%xmm5,%%xmm0                   \n"
>-    "pshufb    %%xmm5,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)        // %2
>-  : "r"(shuffler)    // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm5"
>-  );
>+  asm volatile(
>+
>+      "movdqu    (%3),%%xmm5                     \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pshufb    %%xmm5,%%xmm0                   \n"
>+      "pshufb    %%xmm5,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "r"(shuffler)    // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> #endif  // HAS_ARGBSHUFFLEROW_SSSE3
> 
> #ifdef HAS_ARGBSHUFFLEROW_AVX2
> // For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-void ARGBShuffleRow_AVX2(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>+void ARGBShuffleRow_AVX2(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>+                         const uint8_t* shuffler,
>                          int width) {
>-  asm volatile (
>-    "vbroadcastf128 " MEMACCESS(3) ",%%ymm5    \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu   " MEMACCESS(0) ",%%ymm0         \n"
>-    "vmovdqu   " MEMACCESS2(0x20,0) ",%%ymm1   \n"
>-    "lea       " MEMLEA(0x40,0) ",%0           \n"
>-    "vpshufb   %%ymm5,%%ymm0,%%ymm0            \n"
>-    "vpshufb   %%ymm5,%%ymm1,%%ymm1            \n"
>-    "vmovdqu   %%ymm0," MEMACCESS(1) "         \n"
>-    "vmovdqu   %%ymm1," MEMACCESS2(0x20,1) "   \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)        // %2
>-  : "r"(shuffler)    // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm5"
>-  );
>+  asm volatile(
>+
>+      "vbroadcastf128 (%3),%%ymm5                \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu   (%0),%%ymm0                     \n"
>+      "vmovdqu   0x20(%0),%%ymm1                 \n"
>+      "lea       0x40(%0),%0                     \n"
>+      "vpshufb   %%ymm5,%%ymm0,%%ymm0            \n"
>+      "vpshufb   %%ymm5,%%ymm1,%%ymm1            \n"
>+      "vmovdqu   %%ymm0,(%1)                     \n"
>+      "vmovdqu   %%ymm1,0x20(%1)                 \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "r"(shuffler)    // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm5");
> }
> #endif  // HAS_ARGBSHUFFLEROW_AVX2
> 
>-#ifdef HAS_ARGBSHUFFLEROW_SSE2
>-// For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-void ARGBShuffleRow_SSE2(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>-                         int width) {
>-  uintptr_t pixel_temp;
>-  asm volatile (
>-    "pxor      %%xmm5,%%xmm5                   \n"
>-    "mov       " MEMACCESS(4) ",%k2            \n"
>-    "cmp       $0x3000102,%k2                  \n"
>-    "je        3012f                           \n"
>-    "cmp       $0x10203,%k2                    \n"
>-    "je        123f                            \n"
>-    "cmp       $0x30201,%k2                    \n"
>-    "je        321f                            \n"
>-    "cmp       $0x2010003,%k2                  \n"
>-    "je        2103f                           \n"
>+#ifdef HAS_I422TOYUY2ROW_SSE2
>+void I422ToYUY2Row_SSE2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>+                        int width) {
>+  asm volatile(
> 
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movzb     " MEMACCESS(4) ",%2             \n"
>-    MEMOPARG(movzb,0x00,0,2,1,2) "             \n"  //  movzb     (%0,%2,1),%2
>-    "mov       %b2," MEMACCESS(1) "            \n"
>-    "movzb     " MEMACCESS2(0x1,4) ",%2        \n"
>-    MEMOPARG(movzb,0x00,0,2,1,2) "             \n"  //  movzb     (%0,%2,1),%2
>-    "mov       %b2," MEMACCESS2(0x1,1) "       \n"
>-    "movzb     " MEMACCESS2(0x2,4) ",%2        \n"
>-    MEMOPARG(movzb,0x00,0,2,1,2) "             \n"  //  movzb     (%0,%2,1),%2
>-    "mov       %b2," MEMACCESS2(0x2,1) "       \n"
>-    "movzb     " MEMACCESS2(0x3,4) ",%2        \n"
>-    MEMOPARG(movzb,0x00,0,2,1,2) "             \n"  //  movzb     (%0,%2,1),%2
>-    "mov       %b2," MEMACCESS2(0x3,1) "       \n"
>-    "lea       " MEMLEA(0x4,0) ",%0            \n"
>-    "lea       " MEMLEA(0x4,1) ",%1            \n"
>-    "sub       $0x1,%3                         \n"
>-    "jg        1b                              \n"
>-    "jmp       99f                             \n"
>+      "sub       %1,%2                             \n"
> 
>-    LABELALIGN
>-  "123:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpckhbw %%xmm5,%%xmm1                   \n"
>-    "pshufhw   $0x1b,%%xmm0,%%xmm0             \n"
>-    "pshuflw   $0x1b,%%xmm0,%%xmm0             \n"
>-    "pshufhw   $0x1b,%%xmm1,%%xmm1             \n"
>-    "pshuflw   $0x1b,%%xmm1,%%xmm1             \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        123b                            \n"
>-    "jmp       99f                             \n"
>+      LABELALIGN
>+      "1:                                          \n"
>+      "movq      (%1),%%xmm2                       \n"
>+      "movq      0x00(%1,%2,1),%%xmm1              \n"
>+      "add       $0x8,%1                           \n"
>+      "punpcklbw %%xmm1,%%xmm2                     \n"
>+      "movdqu    (%0),%%xmm0                       \n"
>+      "add       $0x10,%0                          \n"
>+      "movdqa    %%xmm0,%%xmm1                     \n"
>+      "punpcklbw %%xmm2,%%xmm0                     \n"
>+      "punpckhbw %%xmm2,%%xmm1                     \n"
>+      "movdqu    %%xmm0,(%3)                       \n"
>+      "movdqu    %%xmm1,0x10(%3)                   \n"
>+      "lea       0x20(%3),%3                       \n"
>+      "sub       $0x10,%4                          \n"
>+      "jg         1b                               \n"
>+      : "+r"(src_y),     // %0
>+        "+r"(src_u),     // %1
>+        "+r"(src_v),     // %2
>+        "+r"(dst_yuy2),  // %3
>+        "+rm"(width)     // %4
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
>+}
>+#endif  // HAS_I422TOYUY2ROW_SSE2
> 
>-    LABELALIGN
>-  "321:                                        \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpckhbw %%xmm5,%%xmm1                   \n"
>-    "pshufhw   $0x39,%%xmm0,%%xmm0             \n"
>-    "pshuflw   $0x39,%%xmm0,%%xmm0             \n"
>-    "pshufhw   $0x39,%%xmm1,%%xmm1             \n"
>-    "pshuflw   $0x39,%%xmm1,%%xmm1             \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        321b                            \n"
>-    "jmp       99f                             \n"
>+#ifdef HAS_I422TOUYVYROW_SSE2
>+void I422ToUYVYRow_SSE2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>+                        int width) {
>+  asm volatile(
> 
>-    LABELALIGN
>-  "2103:                                       \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpckhbw %%xmm5,%%xmm1                   \n"
>-    "pshufhw   $0x93,%%xmm0,%%xmm0             \n"
>-    "pshuflw   $0x93,%%xmm0,%%xmm0             \n"
>-    "pshufhw   $0x93,%%xmm1,%%xmm1             \n"
>-    "pshuflw   $0x93,%%xmm1,%%xmm1             \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        2103b                           \n"
>-    "jmp       99f                             \n"
>+      "sub        %1,%2                            \n"
> 
>-    LABELALIGN
>-  "3012:                                       \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpckhbw %%xmm5,%%xmm1                   \n"
>-    "pshufhw   $0xc6,%%xmm0,%%xmm0             \n"
>-    "pshuflw   $0xc6,%%xmm0,%%xmm0             \n"
>-    "pshufhw   $0xc6,%%xmm1,%%xmm1             \n"
>-    "pshuflw   $0xc6,%%xmm1,%%xmm1             \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        3012b                           \n"
>-
>-  "99:                                         \n"
>-  : "+r"(src_argb),     // %0
>-    "+r"(dst_argb),     // %1
>-    "=&d"(pixel_temp),  // %2
>-    "+r"(width)         // %3
>-  : "r"(shuffler)       // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm5"
>-  );
>+      LABELALIGN
>+      "1:                                          \n"
>+      "movq      (%1),%%xmm2                       \n"
>+      "movq      0x00(%1,%2,1),%%xmm1              \n"
>+      "add       $0x8,%1                           \n"
>+      "punpcklbw %%xmm1,%%xmm2                     \n"
>+      "movdqu    (%0),%%xmm0                       \n"
>+      "movdqa    %%xmm2,%%xmm1                     \n"
>+      "add       $0x10,%0                          \n"
>+      "punpcklbw %%xmm0,%%xmm1                     \n"
>+      "punpckhbw %%xmm0,%%xmm2                     \n"
>+      "movdqu    %%xmm1,(%3)                       \n"
>+      "movdqu    %%xmm2,0x10(%3)                   \n"
>+      "lea       0x20(%3),%3                       \n"
>+      "sub       $0x10,%4                          \n"
>+      "jg         1b                               \n"
>+      : "+r"(src_y),     // %0
>+        "+r"(src_u),     // %1
>+        "+r"(src_v),     // %2
>+        "+r"(dst_uyvy),  // %3
>+        "+rm"(width)     // %4
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
>-#endif  // HAS_ARGBSHUFFLEROW_SSE2
>+#endif  // HAS_I422TOUYVYROW_SSE2
> 
>-#ifdef HAS_I422TOYUY2ROW_SSE2
>-void I422ToYUY2Row_SSE2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_frame,
>+#ifdef HAS_I422TOYUY2ROW_AVX2
>+void I422ToYUY2Row_AVX2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>                         int width) {
>-  asm volatile (
>-    "sub       %1,%2                             \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(1) ",%%xmm2           \n"
>-    MEMOPREG(movq,0x00,1,2,1,xmm3)               //  movq    (%1,%2,1),%%xmm3
>-    "lea       " MEMLEA(0x8,1) ",%1              \n"
>-    "punpcklbw %%xmm3,%%xmm2                     \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0           \n"
>-    "lea       " MEMLEA(0x10,0) ",%0             \n"
>-    "movdqa    %%xmm0,%%xmm1                     \n"
>-    "punpcklbw %%xmm2,%%xmm0                     \n"
>-    "punpckhbw %%xmm2,%%xmm1                     \n"
>-    "movdqu    %%xmm0," MEMACCESS(3) "           \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,3) "     \n"
>-    "lea       " MEMLEA(0x20,3) ",%3             \n"
>-    "sub       $0x10,%4                          \n"
>-    "jg         1b                               \n"
>-    : "+r"(src_y),  // %0
>-      "+r"(src_u),  // %1
>-      "+r"(src_v),  // %2
>-      "+r"(dst_frame),  // %3
>-      "+rm"(width)  // %4
>-    :
>-    : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3"
>-  );
>+  asm volatile(
>+
>+      "sub       %1,%2                             \n"
>+
>+      LABELALIGN
>+      "1:                                          \n"
>+      "vpmovzxbw  (%1),%%ymm1                      \n"
>+      "vpmovzxbw  0x00(%1,%2,1),%%ymm2             \n"
>+      "add        $0x10,%1                         \n"
>+      "vpsllw     $0x8,%%ymm2,%%ymm2               \n"
>+      "vpor       %%ymm1,%%ymm2,%%ymm2             \n"
>+      "vmovdqu    (%0),%%ymm0                      \n"
>+      "add        $0x20,%0                         \n"
>+      "vpunpcklbw %%ymm2,%%ymm0,%%ymm1             \n"
>+      "vpunpckhbw %%ymm2,%%ymm0,%%ymm2             \n"
>+      "vextractf128 $0x0,%%ymm1,(%3)               \n"
>+      "vextractf128 $0x0,%%ymm2,0x10(%3)           \n"
>+      "vextractf128 $0x1,%%ymm1,0x20(%3)           \n"
>+      "vextractf128 $0x1,%%ymm2,0x30(%3)           \n"
>+      "lea        0x40(%3),%3                      \n"
>+      "sub        $0x20,%4                         \n"
>+      "jg         1b                               \n"
>+      "vzeroupper                                  \n"
>+      : "+r"(src_y),     // %0
>+        "+r"(src_u),     // %1
>+        "+r"(src_v),     // %2
>+        "+r"(dst_yuy2),  // %3
>+        "+rm"(width)     // %4
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
>-#endif  // HAS_I422TOYUY2ROW_SSE2
>+#endif  // HAS_I422TOYUY2ROW_AVX2
> 
>-#ifdef HAS_I422TOUYVYROW_SSE2
>-void I422ToUYVYRow_SSE2(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_frame,
>+#ifdef HAS_I422TOUYVYROW_AVX2
>+void I422ToUYVYRow_AVX2(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>                         int width) {
>-  asm volatile (
>-    "sub        %1,%2                            \n"
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(1) ",%%xmm2           \n"
>-    MEMOPREG(movq,0x00,1,2,1,xmm3)               //  movq    (%1,%2,1),%%xmm3
>-    "lea       " MEMLEA(0x8,1) ",%1              \n"
>-    "punpcklbw %%xmm3,%%xmm2                     \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0           \n"
>-    "movdqa    %%xmm2,%%xmm1                     \n"
>-    "lea       " MEMLEA(0x10,0) ",%0             \n"
>-    "punpcklbw %%xmm0,%%xmm1                     \n"
>-    "punpckhbw %%xmm0,%%xmm2                     \n"
>-    "movdqu    %%xmm1," MEMACCESS(3) "           \n"
>-    "movdqu    %%xmm2," MEMACCESS2(0x10,3) "     \n"
>-    "lea       " MEMLEA(0x20,3) ",%3             \n"
>-    "sub       $0x10,%4                          \n"
>-    "jg         1b                               \n"
>-    : "+r"(src_y),  // %0
>-      "+r"(src_u),  // %1
>-      "+r"(src_v),  // %2
>-      "+r"(dst_frame),  // %3
>-      "+rm"(width)  // %4
>-    :
>-    : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3"
>-  );
>+  asm volatile(
>+
>+      "sub        %1,%2                            \n"
>+
>+      LABELALIGN
>+      "1:                                          \n"
>+      "vpmovzxbw  (%1),%%ymm1                      \n"
>+      "vpmovzxbw  0x00(%1,%2,1),%%ymm2             \n"
>+      "add        $0x10,%1                         \n"
>+      "vpsllw     $0x8,%%ymm2,%%ymm2               \n"
>+      "vpor       %%ymm1,%%ymm2,%%ymm2             \n"
>+      "vmovdqu    (%0),%%ymm0                      \n"
>+      "add        $0x20,%0                         \n"
>+      "vpunpcklbw %%ymm0,%%ymm2,%%ymm1             \n"
>+      "vpunpckhbw %%ymm0,%%ymm2,%%ymm2             \n"
>+      "vextractf128 $0x0,%%ymm1,(%3)               \n"
>+      "vextractf128 $0x0,%%ymm2,0x10(%3)           \n"
>+      "vextractf128 $0x1,%%ymm1,0x20(%3)           \n"
>+      "vextractf128 $0x1,%%ymm2,0x30(%3)           \n"
>+      "lea        0x40(%3),%3                      \n"
>+      "sub        $0x20,%4                         \n"
>+      "jg         1b                               \n"
>+      "vzeroupper                                  \n"
>+      : "+r"(src_y),     // %0
>+        "+r"(src_u),     // %1
>+        "+r"(src_v),     // %2
>+        "+r"(dst_uyvy),  // %3
>+        "+rm"(width)     // %4
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2");
> }
>-#endif  // HAS_I422TOUYVYROW_SSE2
>+#endif  // HAS_I422TOUYVYROW_AVX2
> 
> #ifdef HAS_ARGBPOLYNOMIALROW_SSE2
>-void ARGBPolynomialRow_SSE2(const uint8* src_argb,
>-                            uint8* dst_argb,
>+void ARGBPolynomialRow_SSE2(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>                             const float* poly,
>                             int width) {
>-  asm volatile (
>-    "pxor      %%xmm3,%%xmm3                   \n"
>+  asm volatile(
> 
>-    // 2 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "punpcklbw %%xmm3,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm4                   \n"
>-    "punpcklwd %%xmm3,%%xmm0                   \n"
>-    "punpckhwd %%xmm3,%%xmm4                   \n"
>-    "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>-    "cvtdq2ps  %%xmm4,%%xmm4                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "movdqa    %%xmm4,%%xmm5                   \n"
>-    "mulps     " MEMACCESS2(0x10,3) ",%%xmm0   \n"
>-    "mulps     " MEMACCESS2(0x10,3) ",%%xmm4   \n"
>-    "addps     " MEMACCESS(3) ",%%xmm0         \n"
>-    "addps     " MEMACCESS(3) ",%%xmm4         \n"
>-    "movdqa    %%xmm1,%%xmm2                   \n"
>-    "movdqa    %%xmm5,%%xmm6                   \n"
>-    "mulps     %%xmm1,%%xmm2                   \n"
>-    "mulps     %%xmm5,%%xmm6                   \n"
>-    "mulps     %%xmm2,%%xmm1                   \n"
>-    "mulps     %%xmm6,%%xmm5                   \n"
>-    "mulps     " MEMACCESS2(0x20,3) ",%%xmm2   \n"
>-    "mulps     " MEMACCESS2(0x20,3) ",%%xmm6   \n"
>-    "mulps     " MEMACCESS2(0x30,3) ",%%xmm1   \n"
>-    "mulps     " MEMACCESS2(0x30,3) ",%%xmm5   \n"
>-    "addps     %%xmm2,%%xmm0                   \n"
>-    "addps     %%xmm6,%%xmm4                   \n"
>-    "addps     %%xmm1,%%xmm0                   \n"
>-    "addps     %%xmm5,%%xmm4                   \n"
>-    "cvttps2dq %%xmm0,%%xmm0                   \n"
>-    "cvttps2dq %%xmm4,%%xmm4                   \n"
>-    "packuswb  %%xmm4,%%xmm0                   \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x2,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)      // %2
>-  : "r"(poly)        // %3
>-  : "memory", "cc"
>-    , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+      "pxor      %%xmm3,%%xmm3                   \n"
>+
>+      // 2 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm0                     \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "punpcklbw %%xmm3,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm4                   \n"
>+      "punpcklwd %%xmm3,%%xmm0                   \n"
>+      "punpckhwd %%xmm3,%%xmm4                   \n"
>+      "cvtdq2ps  %%xmm0,%%xmm0                   \n"
>+      "cvtdq2ps  %%xmm4,%%xmm4                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "movdqa    %%xmm4,%%xmm5                   \n"
>+      "mulps     0x10(%3),%%xmm0                 \n"
>+      "mulps     0x10(%3),%%xmm4                 \n"
>+      "addps     (%3),%%xmm0                     \n"
>+      "addps     (%3),%%xmm4                     \n"
>+      "movdqa    %%xmm1,%%xmm2                   \n"
>+      "movdqa    %%xmm5,%%xmm6                   \n"
>+      "mulps     %%xmm1,%%xmm2                   \n"
>+      "mulps     %%xmm5,%%xmm6                   \n"
>+      "mulps     %%xmm2,%%xmm1                   \n"
>+      "mulps     %%xmm6,%%xmm5                   \n"
>+      "mulps     0x20(%3),%%xmm2                 \n"
>+      "mulps     0x20(%3),%%xmm6                 \n"
>+      "mulps     0x30(%3),%%xmm1                 \n"
>+      "mulps     0x30(%3),%%xmm5                 \n"
>+      "addps     %%xmm2,%%xmm0                   \n"
>+      "addps     %%xmm6,%%xmm4                   \n"
>+      "addps     %%xmm1,%%xmm0                   \n"
>+      "addps     %%xmm5,%%xmm4                   \n"
>+      "cvttps2dq %%xmm0,%%xmm0                   \n"
>+      "cvttps2dq %%xmm4,%%xmm4                   \n"
>+      "packuswb  %%xmm4,%%xmm0                   \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x2,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "r"(poly)        // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> #endif  // HAS_ARGBPOLYNOMIALROW_SSE2
> 
> #ifdef HAS_ARGBPOLYNOMIALROW_AVX2
>-void ARGBPolynomialRow_AVX2(const uint8* src_argb,
>-                            uint8* dst_argb,
>+void ARGBPolynomialRow_AVX2(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>                             const float* poly,
>                             int width) {
>-  asm volatile (
>-    "vbroadcastf128 " MEMACCESS(3) ",%%ymm4     \n"
>-    "vbroadcastf128 " MEMACCESS2(0x10,3) ",%%ymm5 \n"
>-    "vbroadcastf128 " MEMACCESS2(0x20,3) ",%%ymm6 \n"
>-    "vbroadcastf128 " MEMACCESS2(0x30,3) ",%%ymm7 \n"
>+  asm volatile(
>+      "vbroadcastf128 (%3),%%ymm4                \n"
>+      "vbroadcastf128 0x10(%3),%%ymm5            \n"
>+      "vbroadcastf128 0x20(%3),%%ymm6            \n"
>+      "vbroadcastf128 0x30(%3),%%ymm7            \n"
> 
>-    // 2 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vpmovzxbd   " MEMACCESS(0) ",%%ymm0       \n"  // 2 ARGB pixels
>-    "lea         " MEMLEA(0x8,0) ",%0          \n"
>-    "vcvtdq2ps   %%ymm0,%%ymm0                 \n"  // X 8 floats
>-    "vmulps      %%ymm0,%%ymm0,%%ymm2          \n"  // X * X
>-    "vmulps      %%ymm7,%%ymm0,%%ymm3          \n"  // C3 * X
>-    "vfmadd132ps %%ymm5,%%ymm4,%%ymm0          \n"  // result = C0 + C1 * X
>-    "vfmadd231ps %%ymm6,%%ymm2,%%ymm0          \n"  // result += C2 * X * X
>-    "vfmadd231ps %%ymm3,%%ymm2,%%ymm0          \n"  // result += C3 * X * X * X
>-    "vcvttps2dq  %%ymm0,%%ymm0                 \n"
>-    "vpackusdw   %%ymm0,%%ymm0,%%ymm0          \n"
>-    "vpermq      $0xd8,%%ymm0,%%ymm0           \n"
>-    "vpackuswb   %%xmm0,%%xmm0,%%xmm0          \n"
>-    "vmovq       %%xmm0," MEMACCESS(1) "       \n"
>-    "lea         " MEMLEA(0x8,1) ",%1          \n"
>-    "sub         $0x2,%2                       \n"
>-    "jg          1b                            \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(width)      // %2
>-  : "r"(poly)        // %3
>-  : "memory", "cc",
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      // 2 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vpmovzxbd   (%0),%%ymm0                   \n"  // 2 ARGB pixels
>+      "lea         0x8(%0),%0                    \n"
>+      "vcvtdq2ps   %%ymm0,%%ymm0                 \n"  // X 8 floats
>+      "vmulps      %%ymm0,%%ymm0,%%ymm2          \n"  // X * X
>+      "vmulps      %%ymm7,%%ymm0,%%ymm3          \n"  // C3 * X
>+      "vfmadd132ps %%ymm5,%%ymm4,%%ymm0          \n"  // result = C0 + C1 * X
>+      "vfmadd231ps %%ymm6,%%ymm2,%%ymm0          \n"  // result += C2 * X * X
>+      "vfmadd231ps %%ymm3,%%ymm2,%%ymm0          \n"  // result += C3 * X * X *
>+                                                      // X
>+      "vcvttps2dq  %%ymm0,%%ymm0                 \n"
>+      "vpackusdw   %%ymm0,%%ymm0,%%ymm0          \n"
>+      "vpermq      $0xd8,%%ymm0,%%ymm0           \n"
>+      "vpackuswb   %%xmm0,%%xmm0,%%xmm0          \n"
>+      "vmovq       %%xmm0,(%1)                   \n"
>+      "lea         0x8(%1),%1                    \n"
>+      "sub         $0x2,%2                       \n"
>+      "jg          1b                            \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(width)      // %2
>+      : "r"(poly)        // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> #endif  // HAS_ARGBPOLYNOMIALROW_AVX2
> 
> #ifdef HAS_HALFFLOATROW_SSE2
> static float kScaleBias = 1.9259299444e-34f;
>-void HalfFloatRow_SSE2(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_SSE2(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width) {
>   scale *= kScaleBias;
>-  asm volatile (
>-    "pshufd      $0x0,%3,%%xmm4                \n"
>-    "pxor        %%xmm5,%%xmm5                 \n"
>-    "sub         %0,%1                         \n"
>+  asm volatile(
>+      "movd        %3,%%xmm4                     \n"
>+      "pshufd      $0x0,%%xmm4,%%xmm4            \n"
>+      "pxor        %%xmm5,%%xmm5                 \n"
>+      "sub         %0,%1                         \n"
> 
>-    // 16 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu      " MEMACCESS(0) ",%%xmm2       \n"  // 8 shorts
>-    "add         $0x10,%0                      \n"
>-    "movdqa      %%xmm2,%%xmm3                 \n"
>-    "punpcklwd   %%xmm5,%%xmm2                 \n"  // 8 ints in xmm2/1
>-    "cvtdq2ps    %%xmm2,%%xmm2                 \n"  // 8 floats
>-    "punpckhwd   %%xmm5,%%xmm3                 \n"
>-    "cvtdq2ps    %%xmm3,%%xmm3                 \n"
>-    "mulps       %%xmm4,%%xmm2                 \n"
>-    "mulps       %%xmm4,%%xmm3                 \n"
>-    "psrld       $0xd,%%xmm2                   \n"
>-    "psrld       $0xd,%%xmm3                   \n"
>-    "packssdw    %%xmm3,%%xmm2                 \n"
>-    MEMOPMEM(movdqu,xmm2,-0x10,0,1,1)
>-    "sub         $0x8,%2                       \n"
>-    "jg          1b                            \n"
>-  : "+r"(src),    // %0
>-    "+r"(dst),    // %1
>-    "+r"(width)   // %2
>-#if defined(__x86_64__)
>-  : "x"(scale)   // %3
>-#else
>-  : "m"(scale)   // %3
>-#endif
>-  : "memory", "cc",
>-    "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu      (%0),%%xmm2                   \n"  // 8 shorts
>+      "add         $0x10,%0                      \n"
>+      "movdqa      %%xmm2,%%xmm3                 \n"
>+      "punpcklwd   %%xmm5,%%xmm2                 \n"  // 8 ints in xmm2/1
>+      "cvtdq2ps    %%xmm2,%%xmm2                 \n"  // 8 floats
>+      "punpckhwd   %%xmm5,%%xmm3                 \n"
>+      "cvtdq2ps    %%xmm3,%%xmm3                 \n"
>+      "mulps       %%xmm4,%%xmm2                 \n"
>+      "mulps       %%xmm4,%%xmm3                 \n"
>+      "psrld       $0xd,%%xmm2                   \n"
>+      "psrld       $0xd,%%xmm3                   \n"
>+      "packssdw    %%xmm3,%%xmm2                 \n"
>+      "movdqu      %%xmm2,-0x10(%0,%1,1)         \n"
>+      "sub         $0x8,%2                       \n"
>+      "jg          1b                            \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      : "m"(scale)   // %3
>+      : "memory", "cc", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_HALFFLOATROW_SSE2
> 
> #ifdef HAS_HALFFLOATROW_AVX2
>-void HalfFloatRow_AVX2(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_AVX2(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width) {
>   scale *= kScaleBias;
>-  asm volatile (
>-    "vbroadcastss  %3, %%ymm4                  \n"
>-    "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>-    "sub        %0,%1                          \n"
>+  asm volatile(
>+      "vbroadcastss  %3, %%ymm4                  \n"
>+      "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+      "sub        %0,%1                          \n"
> 
>-    // 16 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm2        \n"  // 16 shorts
>-    "add        $0x20,%0                       \n"
>-    "vpunpckhwd %%ymm5,%%ymm2,%%ymm3           \n"  // mutates
>-    "vpunpcklwd %%ymm5,%%ymm2,%%ymm2           \n"
>-    "vcvtdq2ps  %%ymm3,%%ymm3                  \n"
>-    "vcvtdq2ps  %%ymm2,%%ymm2                  \n"
>-    "vmulps     %%ymm3,%%ymm4,%%ymm3           \n"
>-    "vmulps     %%ymm2,%%ymm4,%%ymm2           \n"
>-    "vpsrld     $0xd,%%ymm3,%%ymm3             \n"
>-    "vpsrld     $0xd,%%ymm2,%%ymm2             \n"
>-    "vpackssdw  %%ymm3, %%ymm2, %%ymm2         \n"  // unmutates
>-    MEMOPMEM(vmovdqu,ymm2,-0x20,0,1,1)
>-    "sub        $0x10,%2                       \n"
>-    "jg         1b                             \n"
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm2                    \n"  // 16 shorts
>+      "add        $0x20,%0                       \n"
>+      "vpunpckhwd %%ymm5,%%ymm2,%%ymm3           \n"  // mutates
>+      "vpunpcklwd %%ymm5,%%ymm2,%%ymm2           \n"
>+      "vcvtdq2ps  %%ymm3,%%ymm3                  \n"
>+      "vcvtdq2ps  %%ymm2,%%ymm2                  \n"
>+      "vmulps     %%ymm3,%%ymm4,%%ymm3           \n"
>+      "vmulps     %%ymm2,%%ymm4,%%ymm2           \n"
>+      "vpsrld     $0xd,%%ymm3,%%ymm3             \n"
>+      "vpsrld     $0xd,%%ymm2,%%ymm2             \n"
>+      "vpackssdw  %%ymm3, %%ymm2, %%ymm2         \n"  // unmutates
>+      "vmovdqu    %%ymm2,-0x20(%0,%1,1)          \n"
>+      "sub        $0x10,%2                       \n"
>+      "jg         1b                             \n"
> 
>-    "vzeroupper                                \n"
>-  : "+r"(src),    // %0
>-    "+r"(dst),    // %1
>-    "+r"(width)   // %2
>+      "vzeroupper                                \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
> #if defined(__x86_64__)
>-  : "x"(scale)   // %3
>+      : "x"(scale)  // %3
> #else
>-  : "m"(scale)   // %3
>+      : "m"(scale)  // %3
> #endif
>-  : "memory", "cc",
>-    "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+      : "memory", "cc", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_HALFFLOATROW_AVX2
> 
> #ifdef HAS_HALFFLOATROW_F16C
>-void HalfFloatRow_F16C(const uint16* src, uint16* dst, float scale, int width) {
>-  asm volatile (
>-    "vbroadcastss  %3, %%ymm4                  \n"
>-    "sub        %0,%1                          \n"
>+void HalfFloatRow_F16C(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width) {
>+  asm volatile(
>+      "vbroadcastss  %3, %%ymm4                  \n"
>+      "sub        %0,%1                          \n"
> 
>-    // 16 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vpmovzxwd   " MEMACCESS(0) ",%%ymm2       \n"  // 16 shorts -> 16 ints
>-    "vpmovzxwd   " MEMACCESS2(0x10,0) ",%%ymm3 \n"
>-    "vcvtdq2ps   %%ymm2,%%ymm2                 \n"
>-    "vcvtdq2ps   %%ymm3,%%ymm3                 \n"
>-    "vmulps      %%ymm2,%%ymm4,%%ymm2          \n"
>-    "vmulps      %%ymm3,%%ymm4,%%ymm3          \n"
>-    "vcvtps2ph   $3, %%ymm2, %%xmm2            \n"
>-    "vcvtps2ph   $3, %%ymm3, %%xmm3            \n"
>-    MEMOPMEM(vmovdqu,xmm2,0x00,0,1,1)
>-    MEMOPMEM(vmovdqu,xmm3,0x10,0,1,1)
>-    "add         $0x20,%0                      \n"
>-    "sub         $0x10,%2                      \n"
>-    "jg          1b                            \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vpmovzxwd   (%0),%%ymm2                   \n"  // 16 shorts -> 16 ints
>+      "vpmovzxwd   0x10(%0),%%ymm3               \n"
>+      "vcvtdq2ps   %%ymm2,%%ymm2                 \n"
>+      "vcvtdq2ps   %%ymm3,%%ymm3                 \n"
>+      "vmulps      %%ymm2,%%ymm4,%%ymm2          \n"
>+      "vmulps      %%ymm3,%%ymm4,%%ymm3          \n"
>+      "vcvtps2ph   $3, %%ymm2, %%xmm2            \n"
>+      "vcvtps2ph   $3, %%ymm3, %%xmm3            \n"
>+      "vmovdqu     %%xmm2,0x00(%0,%1,1)          \n"
>+      "vmovdqu     %%xmm3,0x10(%0,%1,1)          \n"
>+      "add         $0x20,%0                      \n"
>+      "sub         $0x10,%2                      \n"
>+      "jg          1b                            \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
> #if defined(__x86_64__)
>-  : "x"(scale)   // %3
>+      : "x"(scale)  // %3
> #else
>-  : "m"(scale)   // %3
>+      : "m"(scale)  // %3
> #endif
>-  : "memory", "cc",
>-    "xmm2", "xmm3", "xmm4"
>-  );
>+      : "memory", "cc", "xmm2", "xmm3", "xmm4");
> }
> #endif  // HAS_HALFFLOATROW_F16C
> 
> #ifdef HAS_HALFFLOATROW_F16C
>-void HalfFloat1Row_F16C(const uint16* src, uint16* dst, float, int width) {
>-  asm volatile (
>-    "sub        %0,%1                          \n"
>-    // 16 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "vpmovzxwd   " MEMACCESS(0) ",%%ymm2       \n"  // 16 shorts -> 16 ints
>-    "vpmovzxwd   " MEMACCESS2(0x10,0) ",%%ymm3 \n"
>-    "vcvtdq2ps   %%ymm2,%%ymm2                 \n"
>-    "vcvtdq2ps   %%ymm3,%%ymm3                 \n"
>-    "vcvtps2ph   $3, %%ymm2, %%xmm2            \n"
>-    "vcvtps2ph   $3, %%ymm3, %%xmm3            \n"
>-    MEMOPMEM(vmovdqu,xmm2,0x00,0,1,1)
>-    MEMOPMEM(vmovdqu,xmm3,0x10,0,1,1)
>-    "add         $0x20,%0                      \n"
>-    "sub         $0x10,%2                      \n"
>-    "jg          1b                            \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src),   // %0
>-    "+r"(dst),   // %1
>-    "+r"(width)  // %2
>-  :
>-  : "memory", "cc",
>-    "xmm2", "xmm3"
>-  );
>+void HalfFloat1Row_F16C(const uint16_t* src, uint16_t* dst, float, int width) {
>+  asm volatile(
>+      "sub        %0,%1                          \n"
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vpmovzxwd   (%0),%%ymm2                   \n"  // 16 shorts -> 16 ints
>+      "vpmovzxwd   0x10(%0),%%ymm3               \n"
>+      "vcvtdq2ps   %%ymm2,%%ymm2                 \n"
>+      "vcvtdq2ps   %%ymm3,%%ymm3                 \n"
>+      "vcvtps2ph   $3, %%ymm2, %%xmm2            \n"
>+      "vcvtps2ph   $3, %%ymm3, %%xmm3            \n"
>+      "vmovdqu     %%xmm2,0x00(%0,%1,1)          \n"
>+      "vmovdqu     %%xmm3,0x10(%0,%1,1)          \n"
>+      "add         $0x20,%0                      \n"
>+      "sub         $0x10,%2                      \n"
>+      "jg          1b                            \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      :
>+      : "memory", "cc", "xmm2", "xmm3");
> }
> #endif  // HAS_HALFFLOATROW_F16C
> 
> #ifdef HAS_ARGBCOLORTABLEROW_X86
> // Tranform ARGB pixels with color table.
>-void ARGBColorTableRow_X86(uint8* dst_argb,
>-                           const uint8* table_argb,
>+void ARGBColorTableRow_X86(uint8_t* dst_argb,
>+                           const uint8_t* table_argb,
>                            int width) {
>   uintptr_t pixel_temp;
>-  asm volatile (
>-    // 1 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movzb     " MEMACCESS(0) ",%1             \n"
>-    "lea       " MEMLEA(0x4,0) ",%0            \n"
>-    MEMOPARG(movzb,0x00,3,1,4,1) "             \n"  // movzb (%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x4,0) "      \n"
>-    "movzb     " MEMACCESS2(-0x3,0) ",%1       \n"
>-    MEMOPARG(movzb,0x01,3,1,4,1) "             \n"  // movzb 0x1(%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x3,0) "      \n"
>-    "movzb     " MEMACCESS2(-0x2,0) ",%1       \n"
>-    MEMOPARG(movzb,0x02,3,1,4,1) "             \n"  // movzb 0x2(%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x2,0) "      \n"
>-    "movzb     " MEMACCESS2(-0x1,0) ",%1       \n"
>-    MEMOPARG(movzb,0x03,3,1,4,1) "             \n"  // movzb 0x3(%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x1,0) "      \n"
>-    "dec       %2                              \n"
>-    "jg        1b                              \n"
>-  : "+r"(dst_argb),     // %0
>-    "=&d"(pixel_temp),  // %1
>-    "+r"(width)         // %2
>-  : "r"(table_argb)     // %3
>-  : "memory", "cc");
>+  asm volatile(
>+      // 1 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movzb     (%0),%1                         \n"
>+      "lea       0x4(%0),%0                      \n"
>+      "movzb     0x00(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x4(%0)                    \n"
>+      "movzb     -0x3(%0),%1                     \n"
>+      "movzb     0x01(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x3(%0)                    \n"
>+      "movzb     -0x2(%0),%1                     \n"
>+      "movzb     0x02(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x2(%0)                    \n"
>+      "movzb     -0x1(%0),%1                     \n"
>+      "movzb     0x03(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x1(%0)                    \n"
>+      "dec       %2                              \n"
>+      "jg        1b                              \n"
>+      : "+r"(dst_argb),     // %0
>+        "=&d"(pixel_temp),  // %1
>+        "+r"(width)         // %2
>+      : "r"(table_argb)     // %3
>+      : "memory", "cc");
> }
> #endif  // HAS_ARGBCOLORTABLEROW_X86
> 
> #ifdef HAS_RGBCOLORTABLEROW_X86
> // Tranform RGB pixels with color table.
>-void RGBColorTableRow_X86(uint8* dst_argb, const uint8* table_argb, int width) {
>+void RGBColorTableRow_X86(uint8_t* dst_argb,
>+                          const uint8_t* table_argb,
>+                          int width) {
>   uintptr_t pixel_temp;
>-  asm volatile (
>-    // 1 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movzb     " MEMACCESS(0) ",%1             \n"
>-    "lea       " MEMLEA(0x4,0) ",%0            \n"
>-    MEMOPARG(movzb,0x00,3,1,4,1) "             \n"  // movzb (%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x4,0) "      \n"
>-    "movzb     " MEMACCESS2(-0x3,0) ",%1       \n"
>-    MEMOPARG(movzb,0x01,3,1,4,1) "             \n"  // movzb 0x1(%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x3,0) "      \n"
>-    "movzb     " MEMACCESS2(-0x2,0) ",%1       \n"
>-    MEMOPARG(movzb,0x02,3,1,4,1) "             \n"  // movzb 0x2(%3,%1,4),%1
>-    "mov       %b1," MEMACCESS2(-0x2,0) "      \n"
>-    "dec       %2                              \n"
>-    "jg        1b                              \n"
>-  : "+r"(dst_argb),     // %0
>-    "=&d"(pixel_temp),  // %1
>-    "+r"(width)         // %2
>-  : "r"(table_argb)     // %3
>-  : "memory", "cc");
>+  asm volatile(
>+      // 1 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movzb     (%0),%1                         \n"
>+      "lea       0x4(%0),%0                      \n"
>+      "movzb     0x00(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x4(%0)                    \n"
>+      "movzb     -0x3(%0),%1                     \n"
>+      "movzb     0x01(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x3(%0)                    \n"
>+      "movzb     -0x2(%0),%1                     \n"
>+      "movzb     0x02(%3,%1,4),%1                \n"
>+      "mov       %b1,-0x2(%0)                    \n"
>+      "dec       %2                              \n"
>+      "jg        1b                              \n"
>+      : "+r"(dst_argb),     // %0
>+        "=&d"(pixel_temp),  // %1
>+        "+r"(width)         // %2
>+      : "r"(table_argb)     // %3
>+      : "memory", "cc");
> }
> #endif  // HAS_RGBCOLORTABLEROW_X86
> 
> #ifdef HAS_ARGBLUMACOLORTABLEROW_SSSE3
> // Tranform RGB pixels with luma table.
>-void ARGBLumaColorTableRow_SSSE3(const uint8* src_argb,
>-                                 uint8* dst_argb,
>+void ARGBLumaColorTableRow_SSSE3(const uint8_t* src_argb,
>+                                 uint8_t* dst_argb,
>                                  int width,
>-                                 const uint8* luma,
>-                                 uint32 lumacoeff) {
>+                                 const uint8_t* luma,
>+                                 uint32_t lumacoeff) {
>   uintptr_t pixel_temp;
>   uintptr_t table_temp;
>-  asm volatile (
>-    "movd      %6,%%xmm3                       \n"
>-    "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>-    "pcmpeqb   %%xmm4,%%xmm4                   \n"
>-    "psllw     $0x8,%%xmm4                     \n"
>-    "pxor      %%xmm5,%%xmm5                   \n"
>+  asm volatile(
>+      "movd      %6,%%xmm3                       \n"
>+      "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>+      "pcmpeqb   %%xmm4,%%xmm4                   \n"
>+      "psllw     $0x8,%%xmm4                     \n"
>+      "pxor      %%xmm5,%%xmm5                   \n"
> 
>-    // 4 pixel loop.
>-    LABELALIGN
>-    "1:                                        \n"
>-    "movdqu    " MEMACCESS(2) ",%%xmm0         \n"
>-    "pmaddubsw %%xmm3,%%xmm0                   \n"
>-    "phaddw    %%xmm0,%%xmm0                   \n"
>-    "pand      %%xmm4,%%xmm0                   \n"
>-    "punpcklwd %%xmm5,%%xmm0                   \n"
>-    "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>-    "add       %5,%1                           \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-
>-    "movzb     " MEMACCESS(2) ",%0             \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS(3) "            \n"
>-    "movzb     " MEMACCESS2(0x1,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x1,3) "       \n"
>-    "movzb     " MEMACCESS2(0x2,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x2,3) "       \n"
>-    "movzb     " MEMACCESS2(0x3,2) ",%0        \n"
>-    "mov       %b0," MEMACCESS2(0x3,3) "       \n"
>-
>-    "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>-    "add       %5,%1                           \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-
>-    "movzb     " MEMACCESS2(0x4,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x4,3) "       \n"
>-    "movzb     " MEMACCESS2(0x5,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x5,3) "       \n"
>-    "movzb     " MEMACCESS2(0x6,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x6,3) "       \n"
>-    "movzb     " MEMACCESS2(0x7,2) ",%0        \n"
>-    "mov       %b0," MEMACCESS2(0x7,3) "       \n"
>-
>-    "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>-    "add       %5,%1                           \n"
>-    "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>-
>-    "movzb     " MEMACCESS2(0x8,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x8,3) "       \n"
>-    "movzb     " MEMACCESS2(0x9,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0x9,3) "       \n"
>-    "movzb     " MEMACCESS2(0xa,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0xa,3) "       \n"
>-    "movzb     " MEMACCESS2(0xb,2) ",%0        \n"
>-    "mov       %b0," MEMACCESS2(0xb,3) "       \n"
>-
>-    "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>-    "add       %5,%1                           \n"
>-
>-    "movzb     " MEMACCESS2(0xc,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0xc,3) "       \n"
>-    "movzb     " MEMACCESS2(0xd,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0xd,3) "       \n"
>-    "movzb     " MEMACCESS2(0xe,2) ",%0        \n"
>-    MEMOPARG(movzb,0x00,1,0,1,0) "             \n"  // movzb     (%1,%0,1),%0
>-    "mov       %b0," MEMACCESS2(0xe,3) "       \n"
>-    "movzb     " MEMACCESS2(0xf,2) ",%0        \n"
>-    "mov       %b0," MEMACCESS2(0xf,3) "       \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "lea       " MEMLEA(0x10,3) ",%3           \n"
>-    "sub       $0x4,%4                         \n"
>-    "jg        1b                              \n"
>-  : "=&d"(pixel_temp),  // %0
>-    "=&a"(table_temp),  // %1
>-    "+r"(src_argb),     // %2
>-    "+r"(dst_argb),     // %3
>-    "+rm"(width)        // %4
>-  : "r"(luma),          // %5
>-    "rm"(lumacoeff)     // %6
>-  : "memory", "cc", "xmm0", "xmm3", "xmm4", "xmm5"
>-  );
>+      // 4 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%2),%%xmm0                     \n"
>+      "pmaddubsw %%xmm3,%%xmm0                   \n"
>+      "phaddw    %%xmm0,%%xmm0                   \n"
>+      "pand      %%xmm4,%%xmm0                   \n"
>+      "punpcklwd %%xmm5,%%xmm0                   \n"
>+      "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>+      "add       %5,%1                           \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+
>+      "movzb     (%2),%0                         \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,(%3)                        \n"
>+      "movzb     0x1(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x1(%3)                     \n"
>+      "movzb     0x2(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x2(%3)                     \n"
>+      "movzb     0x3(%2),%0                      \n"
>+      "mov       %b0,0x3(%3)                     \n"
>+
>+      "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>+      "add       %5,%1                           \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+
>+      "movzb     0x4(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x4(%3)                     \n"
>+      "movzb     0x5(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x5(%3)                     \n"
>+      "movzb     0x6(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x6(%3)                     \n"
>+      "movzb     0x7(%2),%0                      \n"
>+      "mov       %b0,0x7(%3)                     \n"
>+
>+      "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>+      "add       %5,%1                           \n"
>+      "pshufd    $0x39,%%xmm0,%%xmm0             \n"
>+
>+      "movzb     0x8(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x8(%3)                     \n"
>+      "movzb     0x9(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0x9(%3)                     \n"
>+      "movzb     0xa(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0xa(%3)                     \n"
>+      "movzb     0xb(%2),%0                      \n"
>+      "mov       %b0,0xb(%3)                     \n"
>+
>+      "movd      %%xmm0,%k1                      \n"  // 32 bit offset
>+      "add       %5,%1                           \n"
>+
>+      "movzb     0xc(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0xc(%3)                     \n"
>+      "movzb     0xd(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0xd(%3)                     \n"
>+      "movzb     0xe(%2),%0                      \n"
>+      "movzb     0x00(%1,%0,1),%0                \n"
>+      "mov       %b0,0xe(%3)                     \n"
>+      "movzb     0xf(%2),%0                      \n"
>+      "mov       %b0,0xf(%3)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "lea       0x10(%3),%3                     \n"
>+      "sub       $0x4,%4                         \n"
>+      "jg        1b                              \n"
>+      : "=&d"(pixel_temp),  // %0
>+        "=&a"(table_temp),  // %1
>+        "+r"(src_argb),     // %2
>+        "+r"(dst_argb),     // %3
>+        "+rm"(width)        // %4
>+      : "r"(luma),          // %5
>+        "rm"(lumacoeff)     // %6
>+      : "memory", "cc", "xmm0", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_ARGBLUMACOLORTABLEROW_SSSE3
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_msa.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_msa.cc
>index 5cc23450a528953532acb01e03797f994c11ce9f..66666cefcd98c4f2314bf27ac142d34f1864cfcf 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_msa.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_msa.cc
>@@ -37,17 +37,17 @@ extern "C" {
>   }
> 
> // Load YUV 422 pixel data
>-#define READYUV422(psrc_y, psrc_u, psrc_v, out_y, out_u, out_v)  \
>-  {                                                              \
>-    uint64 y_m;                                                  \
>-    uint32 u_m, v_m;                                             \
>-    v4i32 zero_m = {0};                                          \
>-    y_m = LD(psrc_y);                                            \
>-    u_m = LW(psrc_u);                                            \
>-    v_m = LW(psrc_v);                                            \
>-    out_y = (v16u8)__msa_insert_d((v2i64)zero_m, 0, (int64)y_m); \
>-    out_u = (v16u8)__msa_insert_w(zero_m, 0, (int32)u_m);        \
>-    out_v = (v16u8)__msa_insert_w(zero_m, 0, (int32)v_m);        \
>+#define READYUV422(psrc_y, psrc_u, psrc_v, out_y, out_u, out_v)    \
>+  {                                                                \
>+    uint64_t y_m;                                                  \
>+    uint32_t u_m, v_m;                                             \
>+    v4i32 zero_m = {0};                                            \
>+    y_m = LD(psrc_y);                                              \
>+    u_m = LW(psrc_u);                                              \
>+    v_m = LW(psrc_v);                                              \
>+    out_y = (v16u8)__msa_insert_d((v2i64)zero_m, 0, (int64_t)y_m); \
>+    out_u = (v16u8)__msa_insert_w(zero_m, 0, (int32_t)u_m);        \
>+    out_v = (v16u8)__msa_insert_w(zero_m, 0, (int32_t)v_m);        \
>   }
> 
> // Clip input vector elements between 0 to 255
>@@ -275,17 +275,17 @@ extern "C" {
> // Load I444 pixel data
> #define READI444(psrc_y, psrc_u, psrc_v, out_y, out_u, out_v) \
>   {                                                           \
>-    uint64 y_m, u_m, v_m;                                     \
>+    uint64_t y_m, u_m, v_m;                                   \
>     v2i64 zero_m = {0};                                       \
>     y_m = LD(psrc_y);                                         \
>     u_m = LD(psrc_u);                                         \
>     v_m = LD(psrc_v);                                         \
>-    out_y = (v16u8)__msa_insert_d(zero_m, 0, (int64)y_m);     \
>-    out_u = (v16u8)__msa_insert_d(zero_m, 0, (int64)u_m);     \
>-    out_v = (v16u8)__msa_insert_d(zero_m, 0, (int64)v_m);     \
>+    out_y = (v16u8)__msa_insert_d(zero_m, 0, (int64_t)y_m);   \
>+    out_u = (v16u8)__msa_insert_d(zero_m, 0, (int64_t)u_m);   \
>+    out_v = (v16u8)__msa_insert_d(zero_m, 0, (int64_t)v_m);   \
>   }
> 
>-void MirrorRow_MSA(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_MSA(const uint8_t* src, uint8_t* dst, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3;
>   v16u8 dst0, dst1, dst2, dst3;
>@@ -302,7 +302,7 @@ void MirrorRow_MSA(const uint8* src, uint8* dst, int width) {
>   }
> }
> 
>-void ARGBMirrorRow_MSA(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_MSA(const uint8_t* src, uint8_t* dst, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3;
>   v16u8 dst0, dst1, dst2, dst3;
>@@ -319,10 +319,10 @@ void ARGBMirrorRow_MSA(const uint8* src, uint8* dst, int width) {
>   }
> }
> 
>-void I422ToYUY2Row_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_yuy2,
>+void I422ToYUY2Row_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_yuy2,
>                        int width) {
>   int x;
>   v16u8 src_u0, src_v0, src_y0, src_y1, vec_uv0, vec_uv1;
>@@ -343,10 +343,10 @@ void I422ToYUY2Row_MSA(const uint8* src_y,
>   }
> }
> 
>-void I422ToUYVYRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* dst_uyvy,
>+void I422ToUYVYRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_uyvy,
>                        int width) {
>   int x;
>   v16u8 src_u0, src_v0, src_y0, src_y1, vec_uv0, vec_uv1;
>@@ -367,10 +367,10 @@ void I422ToUYVYRow_MSA(const uint8* src_y,
>   }
> }
> 
>-void I422ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* rgb_buf,
>+void I422ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>@@ -390,18 +390,18 @@ void I422ToARGBRow_MSA(const uint8* src_y,
>     src1 = (v16u8)__msa_ilvr_b((v16i8)src2, (v16i8)src1);
>     YUVTORGB(src0, src1, vec_ubvr, vec_ugvg, vec_bb, vec_bg, vec_br, vec_yg,
>              vec0, vec1, vec2);
>-    STOREARGB(vec0, vec1, vec2, alpha, rgb_buf);
>+    STOREARGB(vec0, vec1, vec2, alpha, dst_argb);
>     src_y += 8;
>     src_u += 4;
>     src_v += 4;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void I422ToRGBARow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* rgb_buf,
>+void I422ToRGBARow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>@@ -421,23 +421,23 @@ void I422ToRGBARow_MSA(const uint8* src_y,
>     src1 = (v16u8)__msa_ilvr_b((v16i8)src2, (v16i8)src1);
>     YUVTORGB(src0, src1, vec_ubvr, vec_ugvg, vec_bb, vec_bg, vec_br, vec_yg,
>              vec0, vec1, vec2);
>-    STOREARGB(alpha, vec0, vec1, vec2, rgb_buf);
>+    STOREARGB(alpha, vec0, vec1, vec2, dst_argb);
>     src_y += 8;
>     src_u += 4;
>     src_v += 4;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void I422AlphaToARGBRow_MSA(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            const uint8* src_a,
>-                            uint8* rgb_buf,
>+void I422AlphaToARGBRow_MSA(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            const uint8_t* src_a,
>+                            uint8_t* dst_argb,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   int x;
>-  int64 data_a;
>+  int64_t data_a;
>   v16u8 src0, src1, src2, src3;
>   v8i16 vec0, vec1, vec2;
>   v4i32 vec_ub, vec_vr, vec_ug, vec_vg, vec_bb, vec_bg, vec_br, vec_yg;
>@@ -457,23 +457,23 @@ void I422AlphaToARGBRow_MSA(const uint8* src_y,
>     YUVTORGB(src0, src1, vec_ubvr, vec_ugvg, vec_bb, vec_bg, vec_br, vec_yg,
>              vec0, vec1, vec2);
>     src3 = (v16u8)__msa_ilvr_b((v16i8)src3, (v16i8)src3);
>-    STOREARGB(vec0, vec1, vec2, src3, rgb_buf);
>+    STOREARGB(vec0, vec1, vec2, src3, dst_argb);
>     src_y += 8;
>     src_u += 4;
>     src_v += 4;
>     src_a += 8;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void I422ToRGB24Row_MSA(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* rgb_buf,
>+void I422ToRGB24Row_MSA(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>-                        int32 width) {
>+                        int32_t width) {
>   int x;
>-  int64 data_u, data_v;
>+  int64_t data_u, data_v;
>   v16u8 src0, src1, src2, src3, src4, dst0, dst1, dst2;
>   v8i16 vec0, vec1, vec2, vec3, vec4, vec5;
>   v4i32 vec_ub, vec_vr, vec_ug, vec_vg, vec_bb, vec_bg, vec_br, vec_yg;
>@@ -510,20 +510,20 @@ void I422ToRGB24Row_MSA(const uint8* src_y,
>     dst0 = (v16u8)__msa_vshf_b(shuffler0, (v16i8)reg3, (v16i8)reg0);
>     dst1 = (v16u8)__msa_vshf_b(shuffler1, (v16i8)reg3, (v16i8)reg1);
>     dst2 = (v16u8)__msa_vshf_b(shuffler2, (v16i8)reg3, (v16i8)reg2);
>-    ST_UB2(dst0, dst1, rgb_buf, 16);
>-    ST_UB(dst2, (rgb_buf + 32));
>+    ST_UB2(dst0, dst1, dst_argb, 16);
>+    ST_UB(dst2, (dst_argb + 32));
>     src_y += 16;
>     src_u += 8;
>     src_v += 8;
>-    rgb_buf += 48;
>+    dst_argb += 48;
>   }
> }
> 
> // TODO(fbarchard): Consider AND instead of shift to isolate 5 upper bits of R.
>-void I422ToRGB565Row_MSA(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb565,
>+void I422ToRGB565Row_MSA(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb565,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   int x;
>@@ -558,10 +558,10 @@ void I422ToRGB565Row_MSA(const uint8* src_y,
> }
> 
> // TODO(fbarchard): Consider AND instead of shift to isolate 4 upper bits of G.
>-void I422ToARGB4444Row_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb4444,
>+void I422ToARGB4444Row_MSA(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_argb4444,
>                            const struct YuvConstants* yuvconstants,
>                            int width) {
>   int x;
>@@ -598,10 +598,10 @@ void I422ToARGB4444Row_MSA(const uint8* src_y,
>   }
> }
> 
>-void I422ToARGB1555Row_MSA(const uint8* src_y,
>-                           const uint8* src_u,
>-                           const uint8* src_v,
>-                           uint8* dst_argb1555,
>+void I422ToARGB1555Row_MSA(const uint8_t* src_y,
>+                           const uint8_t* src_u,
>+                           const uint8_t* src_v,
>+                           uint8_t* dst_argb1555,
>                            const struct YuvConstants* yuvconstants,
>                            int width) {
>   int x;
>@@ -638,7 +638,7 @@ void I422ToARGB1555Row_MSA(const uint8* src_y,
>   }
> }
> 
>-void YUY2ToYRow_MSA(const uint8* src_yuy2, uint8* dst_y, int width) {
>+void YUY2ToYRow_MSA(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
> 
>@@ -652,12 +652,12 @@ void YUY2ToYRow_MSA(const uint8* src_yuy2, uint8* dst_y, int width) {
>   }
> }
> 
>-void YUY2ToUVRow_MSA(const uint8* src_yuy2,
>+void YUY2ToUVRow_MSA(const uint8_t* src_yuy2,
>                      int src_stride_yuy2,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  const uint8* src_yuy2_next = src_yuy2 + src_stride_yuy2;
>+  const uint8_t* src_yuy2_next = src_yuy2 + src_stride_yuy2;
>   int x;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v16u8 vec0, vec1, dst0, dst1;
>@@ -682,9 +682,9 @@ void YUY2ToUVRow_MSA(const uint8* src_yuy2,
>   }
> }
> 
>-void YUY2ToUV422Row_MSA(const uint8* src_yuy2,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void YUY2ToUV422Row_MSA(const uint8_t* src_yuy2,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -703,7 +703,7 @@ void YUY2ToUV422Row_MSA(const uint8* src_yuy2,
>   }
> }
> 
>-void UYVYToYRow_MSA(const uint8* src_uyvy, uint8* dst_y, int width) {
>+void UYVYToYRow_MSA(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
> 
>@@ -717,12 +717,12 @@ void UYVYToYRow_MSA(const uint8* src_uyvy, uint8* dst_y, int width) {
>   }
> }
> 
>-void UYVYToUVRow_MSA(const uint8* src_uyvy,
>+void UYVYToUVRow_MSA(const uint8_t* src_uyvy,
>                      int src_stride_uyvy,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  const uint8* src_uyvy_next = src_uyvy + src_stride_uyvy;
>+  const uint8_t* src_uyvy_next = src_uyvy + src_stride_uyvy;
>   int x;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v16u8 vec0, vec1, dst0, dst1;
>@@ -747,9 +747,9 @@ void UYVYToUVRow_MSA(const uint8* src_uyvy,
>   }
> }
> 
>-void UYVYToUV422Row_MSA(const uint8* src_uyvy,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+void UYVYToUV422Row_MSA(const uint8_t* src_uyvy,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -768,7 +768,7 @@ void UYVYToUV422Row_MSA(const uint8* src_uyvy,
>   }
> }
> 
>-void ARGBToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void ARGBToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, vec0, vec1, vec2, vec3, dst0;
>   v8u16 reg0, reg1, reg2, reg3, reg4, reg5;
>@@ -814,13 +814,13 @@ void ARGBToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void ARGBToUVRow_MSA(const uint8* src_argb0,
>+void ARGBToUVRow_MSA(const uint8_t* src_argb0,
>                      int src_stride_argb,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   int x;
>-  const uint8* src_argb0_next = src_argb0 + src_stride_argb;
>+  const uint8_t* src_argb0_next = src_argb0 + src_stride_argb;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v16u8 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7, vec8, vec9;
>   v8u16 reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9;
>@@ -932,7 +932,7 @@ void ARGBToUVRow_MSA(const uint8* src_argb0,
>   }
> }
> 
>-void ARGBToRGB24Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToRGB24Row_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1, dst2;
>   v16i8 shuffler0 = {0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 20};
>@@ -956,7 +956,7 @@ void ARGBToRGB24Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToRAWRow_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToRAWRow_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1, dst2;
>   v16i8 shuffler0 = {2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 18, 17, 16, 22};
>@@ -980,7 +980,7 @@ void ARGBToRAWRow_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToRGB565Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToRGB565Row_MSA(const uint8_t* src_argb, uint8_t* dst_rgb, int width) {
>   int x;
>   v16u8 src0, src1, dst0;
>   v16u8 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>@@ -1014,7 +1014,9 @@ void ARGBToRGB565Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToARGB1555Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToARGB1555Row_MSA(const uint8_t* src_argb,
>+                           uint8_t* dst_rgb,
>+                           int width) {
>   int x;
>   v16u8 src0, src1, dst0;
>   v16u8 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7, vec8, vec9;
>@@ -1054,7 +1056,9 @@ void ARGBToARGB1555Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToARGB4444Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>+void ARGBToARGB4444Row_MSA(const uint8_t* src_argb,
>+                           uint8_t* dst_rgb,
>+                           int width) {
>   int x;
>   v16u8 src0, src1;
>   v16u8 vec0, vec1;
>@@ -1077,11 +1081,11 @@ void ARGBToARGB4444Row_MSA(const uint8* src_argb, uint8* dst_rgb, int width) {
>   }
> }
> 
>-void ARGBToUV444Row_MSA(const uint8* src_argb,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>-                        int32 width) {
>-  int32 x;
>+void ARGBToUV444Row_MSA(const uint8_t* src_argb,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>+                        int32_t width) {
>+  int32_t x;
>   v16u8 src0, src1, src2, src3, reg0, reg1, reg2, reg3, dst0, dst1;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>   v8u16 vec8, vec9, vec10, vec11;
>@@ -1149,9 +1153,9 @@ void ARGBToUV444Row_MSA(const uint8* src_argb,
>   }
> }
> 
>-void ARGBMultiplyRow_MSA(const uint8* src_argb0,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBMultiplyRow_MSA(const uint8_t* src_argb0,
>+                         const uint8_t* src_argb1,
>+                         uint8_t* dst_argb,
>                          int width) {
>   int x;
>   v16u8 src0, src1, dst0;
>@@ -1188,9 +1192,9 @@ void ARGBMultiplyRow_MSA(const uint8* src_argb0,
>   }
> }
> 
>-void ARGBAddRow_MSA(const uint8* src_argb0,
>-                    const uint8* src_argb1,
>-                    uint8* dst_argb,
>+void ARGBAddRow_MSA(const uint8_t* src_argb0,
>+                    const uint8_t* src_argb1,
>+                    uint8_t* dst_argb,
>                     int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -1209,9 +1213,9 @@ void ARGBAddRow_MSA(const uint8* src_argb0,
>   }
> }
> 
>-void ARGBSubtractRow_MSA(const uint8* src_argb0,
>-                         const uint8* src_argb1,
>-                         uint8* dst_argb,
>+void ARGBSubtractRow_MSA(const uint8_t* src_argb0,
>+                         const uint8_t* src_argb1,
>+                         uint8_t* dst_argb,
>                          int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -1230,7 +1234,9 @@ void ARGBSubtractRow_MSA(const uint8* src_argb0,
>   }
> }
> 
>-void ARGBAttenuateRow_MSA(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBAttenuateRow_MSA(const uint8_t* src_argb,
>+                          uint8_t* dst_argb,
>+                          int width) {
>   int x;
>   v16u8 src0, src1, dst0, dst1;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7, vec8, vec9;
>@@ -1295,9 +1301,9 @@ void ARGBAttenuateRow_MSA(const uint8* src_argb, uint8* dst_argb, int width) {
>   }
> }
> 
>-void ARGBToRGB565DitherRow_MSA(const uint8* src_argb,
>-                               uint8* dst_rgb,
>-                               uint32 dither4,
>+void ARGBToRGB565DitherRow_MSA(const uint8_t* src_argb,
>+                               uint8_t* dst_rgb,
>+                               uint32_t dither4,
>                                int width) {
>   int x;
>   v16u8 src0, src1, dst0, vec0, vec1;
>@@ -1339,15 +1345,15 @@ void ARGBToRGB565DitherRow_MSA(const uint8* src_argb,
>   }
> }
> 
>-void ARGBShuffleRow_MSA(const uint8* src_argb,
>-                        uint8* dst_argb,
>-                        const uint8* shuffler,
>+void ARGBShuffleRow_MSA(const uint8_t* src_argb,
>+                        uint8_t* dst_argb,
>+                        const uint8_t* shuffler,
>                         int width) {
>   int x;
>   v16u8 src0, src1, dst0, dst1;
>   v16i8 vec0;
>   v16i8 shuffler_vec = {0, 0, 0, 0, 4, 4, 4, 4, 8, 8, 8, 8, 12, 12, 12, 12};
>-  int32 val = LW((int32*)shuffler);
>+  int32_t val = LW((int32_t*)shuffler);
> 
>   vec0 = (v16i8)__msa_fill_w(val);
>   shuffler_vec += vec0;
>@@ -1363,10 +1369,10 @@ void ARGBShuffleRow_MSA(const uint8* src_argb,
>   }
> }
> 
>-void ARGBShadeRow_MSA(const uint8* src_argb,
>-                      uint8* dst_argb,
>+void ARGBShadeRow_MSA(const uint8_t* src_argb,
>+                      uint8_t* dst_argb,
>                       int width,
>-                      uint32 value) {
>+                      uint32_t value) {
>   int x;
>   v16u8 src0, dst0;
>   v8u16 vec0, vec1;
>@@ -1402,7 +1408,7 @@ void ARGBShadeRow_MSA(const uint8* src_argb,
>   }
> }
> 
>-void ARGBGrayRow_MSA(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBGrayRow_MSA(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>   int x;
>   v16u8 src0, src1, vec0, vec1, dst0, dst1;
>   v8u16 reg0;
>@@ -1427,7 +1433,7 @@ void ARGBGrayRow_MSA(const uint8* src_argb, uint8* dst_argb, int width) {
>   }
> }
> 
>-void ARGBSepiaRow_MSA(uint8* dst_argb, int width) {
>+void ARGBSepiaRow_MSA(uint8_t* dst_argb, int width) {
>   int x;
>   v16u8 src0, src1, dst0, dst1, vec0, vec1, vec2, vec3, vec4, vec5;
>   v8u16 reg0, reg1, reg2;
>@@ -1468,8 +1474,8 @@ void ARGBSepiaRow_MSA(uint8* dst_argb, int width) {
>   }
> }
> 
>-void ARGB4444ToARGBRow_MSA(const uint8* src_argb4444,
>-                           uint8* dst_argb,
>+void ARGB4444ToARGBRow_MSA(const uint8_t* src_argb4444,
>+                           uint8_t* dst_argb,
>                            int width) {
>   int x;
>   v16u8 src0, src1;
>@@ -1497,8 +1503,8 @@ void ARGB4444ToARGBRow_MSA(const uint8* src_argb4444,
>   }
> }
> 
>-void ARGB1555ToARGBRow_MSA(const uint8* src_argb1555,
>-                           uint8* dst_argb,
>+void ARGB1555ToARGBRow_MSA(const uint8_t* src_argb1555,
>+                           uint8_t* dst_argb,
>                            int width) {
>   int x;
>   v8u16 src0, src1;
>@@ -1547,7 +1553,9 @@ void ARGB1555ToARGBRow_MSA(const uint8* src_argb1555,
>   }
> }
> 
>-void RGB565ToARGBRow_MSA(const uint8* src_rgb565, uint8* dst_argb, int width) {
>+void RGB565ToARGBRow_MSA(const uint8_t* src_rgb565,
>+                         uint8_t* dst_argb,
>+                         int width) {
>   int x;
>   v8u16 src0, src1, vec0, vec1, vec2, vec3, vec4, vec5;
>   v8u16 reg0, reg1, reg2, reg3, reg4, reg5;
>@@ -1592,7 +1600,9 @@ void RGB565ToARGBRow_MSA(const uint8* src_rgb565, uint8* dst_argb, int width) {
>   }
> }
> 
>-void RGB24ToARGBRow_MSA(const uint8* src_rgb24, uint8* dst_argb, int width) {
>+void RGB24ToARGBRow_MSA(const uint8_t* src_rgb24,
>+                        uint8_t* dst_argb,
>+                        int width) {
>   int x;
>   v16u8 src0, src1, src2;
>   v16u8 vec0, vec1, vec2;
>@@ -1617,7 +1627,7 @@ void RGB24ToARGBRow_MSA(const uint8* src_rgb24, uint8* dst_argb, int width) {
>   }
> }
> 
>-void RAWToARGBRow_MSA(const uint8* src_raw, uint8* dst_argb, int width) {
>+void RAWToARGBRow_MSA(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
>   int x;
>   v16u8 src0, src1, src2;
>   v16u8 vec0, vec1, vec2;
>@@ -1642,7 +1652,9 @@ void RAWToARGBRow_MSA(const uint8* src_raw, uint8* dst_argb, int width) {
>   }
> }
> 
>-void ARGB1555ToYRow_MSA(const uint8* src_argb1555, uint8* dst_y, int width) {
>+void ARGB1555ToYRow_MSA(const uint8_t* src_argb1555,
>+                        uint8_t* dst_y,
>+                        int width) {
>   int x;
>   v8u16 src0, src1, vec0, vec1, vec2, vec3, vec4, vec5;
>   v8u16 reg0, reg1, reg2, reg3, reg4, reg5;
>@@ -1699,7 +1711,7 @@ void ARGB1555ToYRow_MSA(const uint8* src_argb1555, uint8* dst_y, int width) {
>   }
> }
> 
>-void RGB565ToYRow_MSA(const uint8* src_rgb565, uint8* dst_y, int width) {
>+void RGB565ToYRow_MSA(const uint8_t* src_rgb565, uint8_t* dst_y, int width) {
>   int x;
>   v8u16 src0, src1, vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>   v8u16 reg0, reg1, reg2, reg3, reg4, reg5;
>@@ -1762,7 +1774,7 @@ void RGB565ToYRow_MSA(const uint8* src_rgb565, uint8* dst_y, int width) {
>   }
> }
> 
>-void RGB24ToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void RGB24ToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, reg0, reg1, reg2, reg3, dst0;
>   v8u16 vec0, vec1, vec2, vec3;
>@@ -1803,7 +1815,7 @@ void RGB24ToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void RAWToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void RAWToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, reg0, reg1, reg2, reg3, dst0;
>   v8u16 vec0, vec1, vec2, vec3;
>@@ -1844,14 +1856,14 @@ void RAWToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void ARGB1555ToUVRow_MSA(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_MSA(const uint8_t* src_argb1555,
>                          int src_stride_argb1555,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   int x;
>-  const uint16* s = (const uint16*)src_argb1555;
>-  const uint16* t = (const uint16*)(src_argb1555 + src_stride_argb1555);
>+  const uint16_t* s = (const uint16_t*)src_argb1555;
>+  const uint16_t* t = (const uint16_t*)(src_argb1555 + src_stride_argb1555);
>   int64_t res0, res1;
>   v8u16 src0, src1, src2, src3, reg0, reg1, reg2, reg3;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6;
>@@ -1925,14 +1937,14 @@ void ARGB1555ToUVRow_MSA(const uint8* src_argb1555,
>   }
> }
> 
>-void RGB565ToUVRow_MSA(const uint8* src_rgb565,
>+void RGB565ToUVRow_MSA(const uint8_t* src_rgb565,
>                        int src_stride_rgb565,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>   int x;
>-  const uint16* s = (const uint16*)src_rgb565;
>-  const uint16* t = (const uint16*)(src_rgb565 + src_stride_rgb565);
>+  const uint16_t* s = (const uint16_t*)src_rgb565;
>+  const uint16_t* t = (const uint16_t*)(src_rgb565 + src_stride_rgb565);
>   int64_t res0, res1;
>   v8u16 src0, src1, src2, src3, reg0, reg1, reg2, reg3;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5;
>@@ -2005,15 +2017,15 @@ void RGB565ToUVRow_MSA(const uint8* src_rgb565,
>   }
> }
> 
>-void RGB24ToUVRow_MSA(const uint8* src_rgb0,
>+void RGB24ToUVRow_MSA(const uint8_t* src_rgb0,
>                       int src_stride_rgb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>-  int64 res0, res1;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>+  int64_t res0, res1;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v16u8 inp0, inp1, inp2, inp3, inp4, inp5;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>@@ -2110,15 +2122,15 @@ void RGB24ToUVRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void RAWToUVRow_MSA(const uint8* src_rgb0,
>+void RAWToUVRow_MSA(const uint8_t* src_rgb0,
>                     int src_stride_rgb,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>-  int64 res0, res1;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>+  int64_t res0, res1;
>   v16u8 inp0, inp1, inp2, inp3, inp4, inp5;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>@@ -2215,13 +2227,13 @@ void RAWToUVRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void NV12ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_uv,
>-                       uint8* rgb_buf,
>+void NV12ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_uv,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>-  uint64 val0, val1;
>+  uint64_t val0, val1;
>   v16u8 src0, src1, res0, res1, dst0, dst1;
>   v8i16 vec0, vec1, vec2;
>   v4i32 vec_ub, vec_vr, vec_ug, vec_vg, vec_bb, vec_bg, vec_br, vec_yg;
>@@ -2245,20 +2257,20 @@ void NV12ToARGBRow_MSA(const uint8* src_y,
>     res1 = (v16u8)__msa_ilvev_b((v16i8)alpha, (v16i8)vec1);
>     dst0 = (v16u8)__msa_ilvr_b((v16i8)res1, (v16i8)res0);
>     dst1 = (v16u8)__msa_ilvl_b((v16i8)res1, (v16i8)res0);
>-    ST_UB2(dst0, dst1, rgb_buf, 16);
>+    ST_UB2(dst0, dst1, dst_argb, 16);
>     src_y += 8;
>     src_uv += 8;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void NV12ToRGB565Row_MSA(const uint8* src_y,
>-                         const uint8* src_uv,
>-                         uint8* rgb_buf,
>+void NV12ToRGB565Row_MSA(const uint8_t* src_y,
>+                         const uint8_t* src_uv,
>+                         uint8_t* dst_rgb565,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   int x;
>-  uint64 val0, val1;
>+  uint64_t val0, val1;
>   v16u8 src0, src1, dst0;
>   v8i16 vec0, vec1, vec2;
>   v4i32 vec_ub, vec_vr, vec_ug, vec_vg, vec_bb, vec_bg, vec_br, vec_yg;
>@@ -2281,20 +2293,20 @@ void NV12ToRGB565Row_MSA(const uint8* src_y,
>     vec1 = (vec1 >> 2) << 5;
>     vec2 = (vec2 >> 3) << 11;
>     dst0 = (v16u8)(vec0 | vec1 | vec2);
>-    ST_UB(dst0, rgb_buf);
>+    ST_UB(dst0, dst_rgb565);
>     src_y += 8;
>     src_uv += 8;
>-    rgb_buf += 16;
>+    dst_rgb565 += 16;
>   }
> }
> 
>-void NV21ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_vu,
>-                       uint8* rgb_buf,
>+void NV21ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_vu,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>-  uint64 val0, val1;
>+  uint64_t val0, val1;
>   v16u8 src0, src1, res0, res1, dst0, dst1;
>   v8i16 vec0, vec1, vec2;
>   v4i32 vec_ub, vec_vr, vec_ug, vec_vg, vec_bb, vec_bg, vec_br, vec_yg;
>@@ -2320,16 +2332,16 @@ void NV21ToARGBRow_MSA(const uint8* src_y,
>     res1 = (v16u8)__msa_ilvev_b((v16i8)alpha, (v16i8)vec1);
>     dst0 = (v16u8)__msa_ilvr_b((v16i8)res1, (v16i8)res0);
>     dst1 = (v16u8)__msa_ilvl_b((v16i8)res1, (v16i8)res0);
>-    ST_UB2(dst0, dst1, rgb_buf, 16);
>+    ST_UB2(dst0, dst1, dst_argb, 16);
>     src_y += 8;
>     src_vu += 8;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void SobelRow_MSA(const uint8* src_sobelx,
>-                  const uint8* src_sobely,
>-                  uint8* dst_argb,
>+void SobelRow_MSA(const uint8_t* src_sobelx,
>+                  const uint8_t* src_sobely,
>+                  uint8_t* dst_argb,
>                   int width) {
>   int x;
>   v16u8 src0, src1, vec0, dst0, dst1, dst2, dst3;
>@@ -2355,9 +2367,9 @@ void SobelRow_MSA(const uint8* src_sobelx,
>   }
> }
> 
>-void SobelToPlaneRow_MSA(const uint8* src_sobelx,
>-                         const uint8* src_sobely,
>-                         uint8* dst_y,
>+void SobelToPlaneRow_MSA(const uint8_t* src_sobelx,
>+                         const uint8_t* src_sobely,
>+                         uint8_t* dst_y,
>                          int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -2376,9 +2388,9 @@ void SobelToPlaneRow_MSA(const uint8* src_sobelx,
>   }
> }
> 
>-void SobelXYRow_MSA(const uint8* src_sobelx,
>-                    const uint8* src_sobely,
>-                    uint8* dst_argb,
>+void SobelXYRow_MSA(const uint8_t* src_sobelx,
>+                    const uint8_t* src_sobely,
>+                    uint8_t* dst_argb,
>                     int width) {
>   int x;
>   v16u8 src0, src1, vec0, vec1, vec2;
>@@ -2404,7 +2416,7 @@ void SobelXYRow_MSA(const uint8* src_sobelx,
>   }
> }
> 
>-void ARGBToYJRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void ARGBToYJRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0;
>   v16u8 const_0x4B0F = (v16u8)__msa_fill_h(0x4B0F);
>@@ -2424,7 +2436,7 @@ void ARGBToYJRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void BGRAToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void BGRAToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0;
>   v16u8 const_0x4200 = (v16u8)__msa_fill_h(0x4200);
>@@ -2444,7 +2456,7 @@ void BGRAToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void ABGRToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void ABGRToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0;
>   v16u8 const_0x8142 = (v16u8)__msa_fill_h(0x8142);
>@@ -2464,7 +2476,7 @@ void ABGRToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void RGBAToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>+void RGBAToYRow_MSA(const uint8_t* src_argb0, uint8_t* dst_y, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0;
>   v16u8 const_0x1900 = (v16u8)__msa_fill_h(0x1900);
>@@ -2484,14 +2496,14 @@ void RGBAToYRow_MSA(const uint8* src_argb0, uint8* dst_y, int width) {
>   }
> }
> 
>-void ARGBToUVJRow_MSA(const uint8* src_rgb0,
>+void ARGBToUVJRow_MSA(const uint8_t* src_rgb0,
>                       int src_stride_rgb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
>   v16u8 vec0, vec1, vec2, vec3;
>   v16u8 dst0, dst1;
>@@ -2554,14 +2566,14 @@ void ARGBToUVJRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void BGRAToUVRow_MSA(const uint8* src_rgb0,
>+void BGRAToUVRow_MSA(const uint8_t* src_rgb0,
>                      int src_stride_rgb,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>   v16u8 dst0, dst1, vec0, vec1, vec2, vec3;
>   v16i8 shuffler0 = {0, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29};
>   v16i8 shuffler1 = {2,  3,  6,  7,  10, 11, 14, 15,
>@@ -2587,14 +2599,14 @@ void BGRAToUVRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void ABGRToUVRow_MSA(const uint8* src_rgb0,
>+void ABGRToUVRow_MSA(const uint8_t* src_rgb0,
>                      int src_stride_rgb,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>   v16u8 src0, src1, src2, src3;
>   v16u8 dst0, dst1;
>   v16i8 shuffler0 = {0, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29};
>@@ -2621,14 +2633,14 @@ void ABGRToUVRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void RGBAToUVRow_MSA(const uint8* src_rgb0,
>+void RGBAToUVRow_MSA(const uint8_t* src_rgb0,
>                      int src_stride_rgb,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   int x;
>-  const uint8* s = src_rgb0;
>-  const uint8* t = src_rgb0 + src_stride_rgb;
>+  const uint8_t* s = src_rgb0;
>+  const uint8_t* t = src_rgb0 + src_stride_rgb;
>   v16u8 dst0, dst1, vec0, vec1, vec2, vec3;
>   v16i8 shuffler0 = {0, 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29};
>   v16i8 shuffler1 = {2,  3,  6,  7,  10, 11, 14, 15,
>@@ -2654,10 +2666,10 @@ void RGBAToUVRow_MSA(const uint8* src_rgb0,
>   }
> }
> 
>-void I444ToARGBRow_MSA(const uint8* src_y,
>-                       const uint8* src_u,
>-                       const uint8* src_v,
>-                       uint8* rgb_buf,
>+void I444ToARGBRow_MSA(const uint8_t* src_y,
>+                       const uint8_t* src_u,
>+                       const uint8_t* src_v,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>@@ -2714,15 +2726,15 @@ void I444ToARGBRow_MSA(const uint8* src_y,
>     vec1 = (v8u16)__msa_ilvev_b((v16i8)alpha, (v16i8)vec2);
>     dst0 = (v16u8)__msa_ilvr_h((v8i16)vec1, (v8i16)vec0);
>     dst1 = (v16u8)__msa_ilvl_h((v8i16)vec1, (v8i16)vec0);
>-    ST_UB2(dst0, dst1, rgb_buf, 16);
>+    ST_UB2(dst0, dst1, dst_argb, 16);
>     src_y += 8;
>     src_u += 8;
>     src_v += 8;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void I400ToARGBRow_MSA(const uint8* src_y, uint8* rgb_buf, int width) {
>+void I400ToARGBRow_MSA(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   int x;
>   v16u8 src0, res0, res1, res2, res3, res4, dst0, dst1, dst2, dst3;
>   v8i16 vec0, vec1;
>@@ -2768,13 +2780,13 @@ void I400ToARGBRow_MSA(const uint8* src_y, uint8* rgb_buf, int width) {
>     dst1 = (v16u8)__msa_ilvl_b((v16i8)res3, (v16i8)res1);
>     dst2 = (v16u8)__msa_ilvr_b((v16i8)res4, (v16i8)res2);
>     dst3 = (v16u8)__msa_ilvl_b((v16i8)res4, (v16i8)res2);
>-    ST_UB4(dst0, dst1, dst2, dst3, rgb_buf, 16);
>+    ST_UB4(dst0, dst1, dst2, dst3, dst_argb, 16);
>     src_y += 16;
>-    rgb_buf += 64;
>+    dst_argb += 64;
>   }
> }
> 
>-void J400ToARGBRow_MSA(const uint8* src_y, uint8* dst_argb, int width) {
>+void J400ToARGBRow_MSA(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   int x;
>   v16u8 src0, vec0, vec1, vec2, vec3, dst0, dst1, dst2, dst3;
>   v16u8 alpha = (v16u8)__msa_ldi_b(ALPHA_VAL);
>@@ -2795,8 +2807,8 @@ void J400ToARGBRow_MSA(const uint8* src_y, uint8* dst_argb, int width) {
>   }
> }
> 
>-void YUY2ToARGBRow_MSA(const uint8* src_yuy2,
>-                       uint8* rgb_buf,
>+void YUY2ToARGBRow_MSA(const uint8_t* src_yuy2,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>@@ -2817,14 +2829,14 @@ void YUY2ToARGBRow_MSA(const uint8* src_yuy2,
>     src2 = (v16u8)__msa_pckod_b((v16i8)src0, (v16i8)src0);
>     YUVTORGB(src1, src2, vec_ubvr, vec_ugvg, vec_bb, vec_bg, vec_br, vec_yg,
>              vec0, vec1, vec2);
>-    STOREARGB(vec0, vec1, vec2, alpha, rgb_buf);
>+    STOREARGB(vec0, vec1, vec2, alpha, dst_argb);
>     src_yuy2 += 16;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void UYVYToARGBRow_MSA(const uint8* src_uyvy,
>-                       uint8* rgb_buf,
>+void UYVYToARGBRow_MSA(const uint8_t* src_uyvy,
>+                       uint8_t* dst_argb,
>                        const struct YuvConstants* yuvconstants,
>                        int width) {
>   int x;
>@@ -2845,22 +2857,22 @@ void UYVYToARGBRow_MSA(const uint8* src_uyvy,
>     src2 = (v16u8)__msa_pckev_b((v16i8)src0, (v16i8)src0);
>     YUVTORGB(src1, src2, vec_ubvr, vec_ugvg, vec_bb, vec_bg, vec_br, vec_yg,
>              vec0, vec1, vec2);
>-    STOREARGB(vec0, vec1, vec2, alpha, rgb_buf);
>+    STOREARGB(vec0, vec1, vec2, alpha, dst_argb);
>     src_uyvy += 16;
>-    rgb_buf += 32;
>+    dst_argb += 32;
>   }
> }
> 
>-void InterpolateRow_MSA(uint8* dst_ptr,
>-                        const uint8* src_ptr,
>+void InterpolateRow_MSA(uint8_t* dst_ptr,
>+                        const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>                         int width,
>-                        int32 source_y_fraction) {
>-  int32 y1_fraction = source_y_fraction;
>-  int32 y0_fraction = 256 - y1_fraction;
>-  uint16 y_fractions;
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+                        int32_t source_y_fraction) {
>+  int32_t y1_fraction = source_y_fraction;
>+  int32_t y0_fraction = 256 - y1_fraction;
>+  uint16_t y_fractions;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>   v8u16 vec0, vec1, vec2, vec3, y_frac;
>@@ -2886,7 +2898,7 @@ void InterpolateRow_MSA(uint8* dst_ptr,
>     return;
>   }
> 
>-  y_fractions = (uint16)(y0_fraction + (y1_fraction << 8));
>+  y_fractions = (uint16_t)(y0_fraction + (y1_fraction << 8));
>   y_frac = (v8u16)__msa_fill_h(y_fractions);
> 
>   for (x = 0; x < width; x += 32) {
>@@ -2915,7 +2927,7 @@ void InterpolateRow_MSA(uint8* dst_ptr,
>   }
> }
> 
>-void ARGBSetRow_MSA(uint8* dst_argb, uint32 v32, int width) {
>+void ARGBSetRow_MSA(uint8_t* dst_argb, uint32_t v32, int width) {
>   int x;
>   v4i32 dst0 = __builtin_msa_fill_w(v32);
> 
>@@ -2925,7 +2937,7 @@ void ARGBSetRow_MSA(uint8* dst_argb, uint32 v32, int width) {
>   }
> }
> 
>-void RAWToRGB24Row_MSA(const uint8* src_raw, uint8* dst_rgb24, int width) {
>+void RAWToRGB24Row_MSA(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, src4, dst0, dst1, dst2;
>   v16i8 shuffler0 = {2, 1, 0, 5, 4, 3, 8, 7, 6, 11, 10, 9, 14, 13, 12, 17};
>@@ -2950,9 +2962,9 @@ void RAWToRGB24Row_MSA(const uint8* src_raw, uint8* dst_rgb24, int width) {
>   }
> }
> 
>-void MergeUVRow_MSA(const uint8* src_u,
>-                    const uint8* src_v,
>-                    uint8* dst_uv,
>+void MergeUVRow_MSA(const uint8_t* src_u,
>+                    const uint8_t* src_v,
>+                    uint8_t* dst_uv,
>                     int width) {
>   int x;
>   v16u8 src0, src1, dst0, dst1;
>@@ -2969,7 +2981,9 @@ void MergeUVRow_MSA(const uint8* src_u,
>   }
> }
> 
>-void ARGBExtractAlphaRow_MSA(const uint8* src_argb, uint8* dst_a, int width) {
>+void ARGBExtractAlphaRow_MSA(const uint8_t* src_argb,
>+                             uint8_t* dst_a,
>+                             int width) {
>   int i;
>   v16u8 src0, src1, src2, src3, vec0, vec1, dst0;
> 
>@@ -2987,9 +3001,9 @@ void ARGBExtractAlphaRow_MSA(const uint8* src_argb, uint8* dst_a, int width) {
>   }
> }
> 
>-void ARGBBlendRow_MSA(const uint8* src_argb0,
>-                      const uint8* src_argb1,
>-                      uint8* dst_argb,
>+void ARGBBlendRow_MSA(const uint8_t* src_argb0,
>+                      const uint8_t* src_argb1,
>+                      uint8_t* dst_argb,
>                       int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1;
>@@ -3052,7 +3066,7 @@ void ARGBBlendRow_MSA(const uint8* src_argb0,
>   }
> }
> 
>-void ARGBQuantizeRow_MSA(uint8* dst_argb,
>+void ARGBQuantizeRow_MSA(uint8_t* dst_argb,
>                          int scale,
>                          int interval_size,
>                          int interval_offset,
>@@ -3158,11 +3172,11 @@ void ARGBQuantizeRow_MSA(uint8* dst_argb,
>   }
> }
> 
>-void ARGBColorMatrixRow_MSA(const uint8* src_argb,
>-                            uint8* dst_argb,
>-                            const int8* matrix_argb,
>+void ARGBColorMatrixRow_MSA(const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>+                            const int8_t* matrix_argb,
>                             int width) {
>-  int32 x;
>+  int32_t x;
>   v16i8 src0;
>   v16u8 src1, src2, dst0, dst1;
>   v8i16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7, vec8, vec9;
>@@ -3267,9 +3281,9 @@ void ARGBColorMatrixRow_MSA(const uint8* src_argb,
>   }
> }
> 
>-void SplitUVRow_MSA(const uint8* src_uv,
>-                    uint8* dst_u,
>-                    uint8* dst_v,
>+void SplitUVRow_MSA(const uint8_t* src_uv,
>+                    uint8_t* dst_u,
>+                    uint8_t* dst_v,
>                     int width) {
>   int x;
>   v16u8 src0, src1, src2, src3, dst0, dst1, dst2, dst3;
>@@ -3291,7 +3305,7 @@ void SplitUVRow_MSA(const uint8* src_uv,
>   }
> }
> 
>-void SetRow_MSA(uint8* dst, uint8 v8, int width) {
>+void SetRow_MSA(uint8_t* dst, uint8_t v8, int width) {
>   int x;
>   v16u8 dst0 = (v16u8)__msa_fill_b(v8);
> 
>@@ -3301,9 +3315,9 @@ void SetRow_MSA(uint8* dst, uint8 v8, int width) {
>   }
> }
> 
>-void MirrorUVRow_MSA(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void MirrorUVRow_MSA(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   int x;
>   v16u8 src0, src1, src2, src3;
>@@ -3330,11 +3344,11 @@ void MirrorUVRow_MSA(const uint8* src_uv,
>   }
> }
> 
>-void SobelXRow_MSA(const uint8* src_y0,
>-                   const uint8* src_y1,
>-                   const uint8* src_y2,
>-                   uint8* dst_sobelx,
>-                   int32 width) {
>+void SobelXRow_MSA(const uint8_t* src_y0,
>+                   const uint8_t* src_y1,
>+                   const uint8_t* src_y2,
>+                   uint8_t* dst_sobelx,
>+                   int32_t width) {
>   int x;
>   v16u8 src0, src1, src2, src3, src4, src5, dst0;
>   v8i16 vec0, vec1, vec2, vec3, vec4, vec5;
>@@ -3384,10 +3398,10 @@ void SobelXRow_MSA(const uint8* src_y0,
>   }
> }
> 
>-void SobelYRow_MSA(const uint8* src_y0,
>-                   const uint8* src_y1,
>-                   uint8* dst_sobely,
>-                   int32 width) {
>+void SobelYRow_MSA(const uint8_t* src_y0,
>+                   const uint8_t* src_y1,
>+                   uint8_t* dst_sobely,
>+                   int32_t width) {
>   int x;
>   v16u8 src0, src1, dst0;
>   v8i16 vec0, vec1, vec2, vec3, vec4, vec5, vec6;
>@@ -3429,7 +3443,10 @@ void SobelYRow_MSA(const uint8* src_y0,
>   }
> }
> 
>-void HalfFloatRow_MSA(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_MSA(const uint16_t* src,
>+                      uint16_t* dst,
>+                      float scale,
>+                      int width) {
>   int i;
>   v8u16 src0, src1, src2, src3, dst0, dst1, dst2, dst3;
>   v4u32 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon.cc
>index 1af828622cdd1d55c6190ac8aa142edae43c43d3..8b6c19520722988b59ba061e1b0ec5a9d889c66d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon.cc
>@@ -106,10 +106,10 @@ extern "C" {
>   "vqshrun.s16 d22, q9, #6                   \n" /* R */                      \
>   "vqshrun.s16 d21, q0, #6                   \n" /* G */
> 
>-void I444ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I444ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(
>@@ -132,10 +132,10 @@ void I444ToARGBRow_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void I422ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(
>@@ -158,11 +158,11 @@ void I422ToARGBRow_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void I422AlphaToARGBRow_NEON(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             const uint8* src_a,
>-                             uint8* dst_argb,
>+void I422AlphaToARGBRow_NEON(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             const uint8_t* src_a,
>+                             uint8_t* dst_argb,
>                              const struct YuvConstants* yuvconstants,
>                              int width) {
>   asm volatile(
>@@ -186,18 +186,17 @@ void I422AlphaToARGBRow_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void I422ToRGBARow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_rgba,
>+void I422ToRGBARow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_rgba,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(
>       YUVTORGB_SETUP
>       "1:                                        \n" READYUV422 YUVTORGB
>       "subs       %4, %4, #8                     \n"
>-      "vmov.u8    d19, #255                      \n"  // d19 modified by
>-                                                      // YUVTORGB
>+      "vmov.u8    d19, #255                      \n"  // YUVTORGB modified d19
>       "vst4.8     {d19, d20, d21, d22}, [%3]!    \n"
>       "bgt        1b                             \n"
>       : "+r"(src_y),     // %0
>@@ -213,10 +212,10 @@ void I422ToRGBARow_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void I422ToRGB24Row_NEON(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb24,
>+void I422ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb24,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   asm volatile(
>@@ -245,10 +244,10 @@ void I422ToRGB24Row_NEON(const uint8* src_y,
>   "vsri.16     q0, q8, #5                    \n" /* RG                   */ \
>   "vsri.16     q0, q9, #11                   \n" /* RGB                  */
> 
>-void I422ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_rgb565,
>+void I422ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   asm volatile(
>@@ -279,10 +278,10 @@ void I422ToRGB565Row_NEON(const uint8* src_y,
>   "vsri.16     q0, q9, #6                    \n" /* ARG                  */ \
>   "vsri.16     q0, q10, #11                  \n" /* ARGB                 */
> 
>-void I422ToARGB1555Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb1555,
>+void I422ToARGB1555Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb1555,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   asm volatile(
>@@ -291,7 +290,6 @@ void I422ToARGB1555Row_NEON(const uint8* src_y,
>       "subs       %4, %4, #8                     \n"
>       "vmov.u8    d23, #255                      \n" ARGBTOARGB1555
>       "vst1.8     {q0}, [%3]!                    \n"  // store 8 pixels
>-                                                      // ARGB1555.
>       "bgt        1b                             \n"
>       : "+r"(src_y),         // %0
>         "+r"(src_u),         // %1
>@@ -315,21 +313,21 @@ void I422ToARGB1555Row_NEON(const uint8* src_y,
>   "vorr       d1, d22, d23                   \n" /* RA                   */ \
>   "vzip.u8    d0, d1                         \n" /* BGRA                 */
> 
>-void I422ToARGB4444Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb4444,
>+void I422ToARGB4444Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb4444,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   asm volatile(
>       YUVTORGB_SETUP
>-      "vmov.u8    d4, #0x0f                      \n"  // bits to clear with
>-                                                      // vbic.
>-      "1:                                        \n" READYUV422 YUVTORGB
>+      "vmov.u8    d4, #0x0f                      \n"  // vbic bits to clear
>+      "1:                                        \n"
>+
>+      READYUV422 YUVTORGB
>       "subs       %4, %4, #8                     \n"
>       "vmov.u8    d23, #255                      \n" ARGBTOARGB4444
>       "vst1.8     {q0}, [%3]!                    \n"  // store 8 pixels
>-                                                      // ARGB4444.
>       "bgt        1b                             \n"
>       : "+r"(src_y),         // %0
>         "+r"(src_u),         // %1
>@@ -344,7 +342,7 @@ void I422ToARGB4444Row_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>+void I400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   asm volatile(
>       YUVTORGB_SETUP
>       "vmov.u8    d23, #255                      \n"
>@@ -363,7 +361,7 @@ void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>         "q12", "q13", "q14", "q15");
> }
> 
>-void J400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>+void J400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "vmov.u8    d23, #255                      \n"
>       "1:                                        \n"
>@@ -380,9 +378,9 @@ void J400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>       : "cc", "memory", "d20", "d21", "d22", "d23");
> }
> 
>-void NV12ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_uv,
>-                        uint8* dst_argb,
>+void NV12ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_uv,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(YUVTORGB_SETUP
>@@ -403,9 +401,9 @@ void NV12ToARGBRow_NEON(const uint8* src_y,
>                  "q10", "q11", "q12", "q13", "q14", "q15");
> }
> 
>-void NV21ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_vu,
>-                        uint8* dst_argb,
>+void NV21ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_vu,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(YUVTORGB_SETUP
>@@ -426,9 +424,63 @@ void NV21ToARGBRow_NEON(const uint8* src_y,
>                  "q10", "q11", "q12", "q13", "q14", "q15");
> }
> 
>-void NV12ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_uv,
>-                          uint8* dst_rgb565,
>+void NV12ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_uv,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width) {
>+  asm volatile(
>+
>+      YUVTORGB_SETUP
>+
>+      "1:                                        \n"
>+
>+      READNV12 YUVTORGB
>+      "subs       %3, %3, #8                     \n"
>+      "vst3.8     {d20, d21, d22}, [%2]!         \n"
>+      "bgt        1b                             \n"
>+      : "+r"(src_y),      // %0
>+        "+r"(src_uv),     // %1
>+        "+r"(dst_rgb24),  // %2
>+        "+r"(width)       // %3
>+      : [kUVToRB] "r"(&yuvconstants->kUVToRB),
>+        [kUVToG] "r"(&yuvconstants->kUVToG),
>+        [kUVBiasBGR] "r"(&yuvconstants->kUVBiasBGR),
>+        [kYToRgb] "r"(&yuvconstants->kYToRgb)
>+      : "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q8", "q9", "q10", "q11",
>+        "q12", "q13", "q14", "q15");
>+}
>+
>+void NV21ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_vu,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width) {
>+  asm volatile(
>+
>+      YUVTORGB_SETUP
>+
>+      "1:                                        \n"
>+
>+      READNV21 YUVTORGB
>+      "subs       %3, %3, #8                     \n"
>+      "vst3.8     {d20, d21, d22}, [%2]!         \n"
>+      "bgt        1b                             \n"
>+      : "+r"(src_y),      // %0
>+        "+r"(src_vu),     // %1
>+        "+r"(dst_rgb24),  // %2
>+        "+r"(width)       // %3
>+      : [kUVToRB] "r"(&yuvconstants->kUVToRB),
>+        [kUVToG] "r"(&yuvconstants->kUVToG),
>+        [kUVBiasBGR] "r"(&yuvconstants->kUVBiasBGR),
>+        [kYToRgb] "r"(&yuvconstants->kYToRgb)
>+      : "cc", "memory", "q0", "q1", "q2", "q3", "q4", "q8", "q9", "q10", "q11",
>+        "q12", "q13", "q14", "q15");
>+}
>+
>+void NV12ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_uv,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   asm volatile(
>@@ -449,8 +501,8 @@ void NV12ToRGB565Row_NEON(const uint8* src_y,
>         "q12", "q13", "q14", "q15");
> }
> 
>-void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
>-                        uint8* dst_argb,
>+void YUY2ToARGBRow_NEON(const uint8_t* src_yuy2,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(YUVTORGB_SETUP
>@@ -470,8 +522,8 @@ void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
>                  "q10", "q11", "q12", "q13", "q14", "q15");
> }
> 
>-void UYVYToARGBRow_NEON(const uint8* src_uyvy,
>-                        uint8* dst_argb,
>+void UYVYToARGBRow_NEON(const uint8_t* src_uyvy,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile(YUVTORGB_SETUP
>@@ -492,9 +544,9 @@ void UYVYToARGBRow_NEON(const uint8* src_uyvy,
> }
> 
> // Reads 16 pairs of UV and write even values to dst_u and odd to dst_v.
>-void SplitUVRow_NEON(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_NEON(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -513,9 +565,9 @@ void SplitUVRow_NEON(const uint8* src_uv,
> }
> 
> // Reads 16 U's and V's and writes out 16 pairs of UV.
>-void MergeUVRow_NEON(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_NEON(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -534,10 +586,10 @@ void MergeUVRow_NEON(const uint8* src_u,
> }
> 
> // Reads 16 packed RGB and write to planar dst_r, dst_g, dst_b.
>-void SplitRGBRow_NEON(const uint8* src_rgb,
>-                      uint8* dst_r,
>-                      uint8* dst_g,
>-                      uint8* dst_b,
>+void SplitRGBRow_NEON(const uint8_t* src_rgb,
>+                      uint8_t* dst_r,
>+                      uint8_t* dst_g,
>+                      uint8_t* dst_b,
>                       int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -559,10 +611,10 @@ void SplitRGBRow_NEON(const uint8* src_rgb,
> }
> 
> // Reads 16 planar R's, G's and B's and writes out 16 packed RGB at a time
>-void MergeRGBRow_NEON(const uint8* src_r,
>-                      const uint8* src_g,
>-                      const uint8* src_b,
>-                      uint8* dst_rgb,
>+void MergeRGBRow_NEON(const uint8_t* src_r,
>+                      const uint8_t* src_g,
>+                      const uint8_t* src_b,
>+                      uint8_t* dst_rgb,
>                       int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -584,7 +636,7 @@ void MergeRGBRow_NEON(const uint8* src_r,
> }
> 
> // Copy multiple of 32.  vld4.8  allow unaligned and is fastest on a15.
>-void CopyRow_NEON(const uint8* src, uint8* dst, int count) {
>+void CopyRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld1.8     {d0, d1, d2, d3}, [%0]!        \n"  // load 32
>@@ -593,14 +645,14 @@ void CopyRow_NEON(const uint8* src, uint8* dst, int count) {
>       "bgt        1b                             \n"
>       : "+r"(src),                  // %0
>         "+r"(dst),                  // %1
>-        "+r"(count)                 // %2  // Output registers
>+        "+r"(width)                 // %2  // Output registers
>       :                             // Input registers
>       : "cc", "memory", "q0", "q1"  // Clobber List
>       );
> }
> 
>-// SetRow writes 'count' bytes using an 8 bit value repeated.
>-void SetRow_NEON(uint8* dst, uint8 v8, int count) {
>+// SetRow writes 'width' bytes using an 8 bit value repeated.
>+void SetRow_NEON(uint8_t* dst, uint8_t v8, int width) {
>   asm volatile(
>       "vdup.8    q0, %2                          \n"  // duplicate 16 bytes
>       "1:                                        \n"
>@@ -608,13 +660,13 @@ void SetRow_NEON(uint8* dst, uint8 v8, int count) {
>       "vst1.8    {q0}, [%0]!                     \n"  // store
>       "bgt       1b                              \n"
>       : "+r"(dst),   // %0
>-        "+r"(count)  // %1
>+        "+r"(width)  // %1
>       : "r"(v8)      // %2
>       : "cc", "memory", "q0");
> }
> 
>-// ARGBSetRow writes 'count' pixels using an 32 bit value repeated.
>-void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
>+// ARGBSetRow writes 'width' pixels using an 32 bit value repeated.
>+void ARGBSetRow_NEON(uint8_t* dst, uint32_t v32, int width) {
>   asm volatile(
>       "vdup.u32  q0, %2                          \n"  // duplicate 4 ints
>       "1:                                        \n"
>@@ -622,12 +674,12 @@ void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
>       "vst1.8    {q0}, [%0]!                     \n"  // store
>       "bgt       1b                              \n"
>       : "+r"(dst),   // %0
>-        "+r"(count)  // %1
>+        "+r"(width)  // %1
>       : "r"(v32)     // %2
>       : "cc", "memory", "q0");
> }
> 
>-void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       // Start at end of source row.
>       "mov        r3, #-16                       \n"
>@@ -648,9 +700,9 @@ void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>       : "cc", "memory", "r3", "q0");
> }
> 
>-void MirrorUVRow_NEON(const uint8* src_uv,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void MirrorUVRow_NEON(const uint8_t* src_uv,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile(
>       // Start at end of source row.
>@@ -673,7 +725,7 @@ void MirrorUVRow_NEON(const uint8* src_uv,
>       : "cc", "memory", "r12", "q0");
> }
> 
>-void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       // Start at end of source row.
>       "mov        r3, #-16                       \n"
>@@ -694,7 +746,9 @@ void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>       : "cc", "memory", "r3", "q0");
> }
> 
>-void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) {
>+void RGB24ToARGBRow_NEON(const uint8_t* src_rgb24,
>+                         uint8_t* dst_argb,
>+                         int width) {
>   asm volatile(
>       "vmov.u8    d4, #255                       \n"  // Alpha
>       "1:                                        \n"
>@@ -710,7 +764,7 @@ void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) {
>       );
> }
> 
>-void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) {
>+void RAWToARGBRow_NEON(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "vmov.u8    d4, #255                       \n"  // Alpha
>       "1:                                        \n"
>@@ -727,7 +781,7 @@ void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) {
>       );
> }
> 
>-void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width) {
>+void RAWToRGB24Row_NEON(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld3.8     {d1, d2, d3}, [%0]!            \n"  // load 8 pixels of RAW.
>@@ -756,7 +810,9 @@ void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width) {
>   "vorr.u8    d2, d1, d5                     \n" /* R                    */ \
>   "vorr.u8    d1, d4, d6                     \n" /* G                    */
> 
>-void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width) {
>+void RGB565ToARGBRow_NEON(const uint8_t* src_rgb565,
>+                          uint8_t* dst_argb,
>+                          int width) {
>   asm volatile(
>       "vmov.u8    d3, #255                       \n"  // Alpha
>       "1:                                        \n"
>@@ -800,8 +856,8 @@ void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width) {
>   "vorr.u8    d2, d1, d5                     \n" /* R                    */ \
>   "vorr.u8    d1, d4, d6                     \n" /* G                    */
> 
>-void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555,
>-                            uint8* dst_argb,
>+void ARGB1555ToARGBRow_NEON(const uint8_t* src_argb1555,
>+                            uint8_t* dst_argb,
>                             int width) {
>   asm volatile(
>       "vmov.u8    d3, #255                       \n"  // Alpha
>@@ -829,8 +885,8 @@ void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555,
>   "vorr.u8    q1, q1, q2                     \n" /* G,A GGGGGGGG         */ \
>   "vswp.u8    d1, d2                         \n" /* B,R,G,A -> B,G,R,A   */
> 
>-void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444,
>-                            uint8* dst_argb,
>+void ARGB4444ToARGBRow_NEON(const uint8_t* src_argb4444,
>+                            uint8_t* dst_argb,
>                             int width) {
>   asm volatile(
>       "vmov.u8    d3, #255                       \n"  // Alpha
>@@ -848,7 +904,9 @@ void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444,
>       );
> }
> 
>-void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int width) {
>+void ARGBToRGB24Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_rgb24,
>+                         int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld4.8     {d1, d2, d3, d4}, [%0]!        \n"  // load 8 pixels of ARGB.
>@@ -864,7 +922,7 @@ void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int width) {
>       );
> }
> 
>-void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int width) {
>+void ARGBToRAWRow_NEON(const uint8_t* src_argb, uint8_t* dst_raw, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld4.8     {d1, d2, d3, d4}, [%0]!        \n"  // load 8 pixels of ARGB.
>@@ -880,7 +938,7 @@ void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int width) {
>       );
> }
> 
>-void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width) {
>+void YUY2ToYRow_NEON(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld2.8     {q0, q1}, [%0]!                \n"  // load 16 pixels of YUY2.
>@@ -895,7 +953,7 @@ void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width) {
>       );
> }
> 
>-void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width) {
>+void UYVYToYRow_NEON(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld2.8     {q0, q1}, [%0]!                \n"  // load 16 pixels of UYVY.
>@@ -910,9 +968,9 @@ void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width) {
>       );
> }
> 
>-void YUY2ToUV422Row_NEON(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_NEON(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -930,9 +988,9 @@ void YUY2ToUV422Row_NEON(const uint8* src_yuy2,
>       );
> }
> 
>-void UYVYToUV422Row_NEON(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_NEON(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -950,10 +1008,10 @@ void UYVYToUV422Row_NEON(const uint8* src_uyvy,
>       );
> }
> 
>-void YUY2ToUVRow_NEON(const uint8* src_yuy2,
>+void YUY2ToUVRow_NEON(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile(
>       "add        %1, %0, %1                     \n"  // stride + src_yuy2
>@@ -977,10 +1035,10 @@ void YUY2ToUVRow_NEON(const uint8* src_yuy2,
>       );
> }
> 
>-void UYVYToUVRow_NEON(const uint8* src_uyvy,
>+void UYVYToUVRow_NEON(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile(
>       "add        %1, %0, %1                     \n"  // stride + src_uyvy
>@@ -1005,9 +1063,9 @@ void UYVYToUVRow_NEON(const uint8* src_uyvy,
> }
> 
> // For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-void ARGBShuffleRow_NEON(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>+void ARGBShuffleRow_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>+                         const uint8_t* shuffler,
>                          int width) {
>   asm volatile(
>       "vld1.8     {q2}, [%3]                     \n"  // shuffler
>@@ -1026,10 +1084,10 @@ void ARGBShuffleRow_NEON(const uint8* src_argb,
>       );
> }
> 
>-void I422ToYUY2Row_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_yuy2,
>+void I422ToYUY2Row_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>                         int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1048,10 +1106,10 @@ void I422ToYUY2Row_NEON(const uint8* src_y,
>       : "cc", "memory", "d0", "d1", "d2", "d3");
> }
> 
>-void I422ToUYVYRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_uyvy,
>+void I422ToUYVYRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>                         int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1070,7 +1128,9 @@ void I422ToUYVYRow_NEON(const uint8* src_y,
>       : "cc", "memory", "d0", "d1", "d2", "d3");
> }
> 
>-void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int width) {
>+void ARGBToRGB565Row_NEON(const uint8_t* src_argb,
>+                          uint8_t* dst_rgb565,
>+                          int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld4.8     {d20, d21, d22, d23}, [%0]!    \n"  // load 8 pixels of ARGB.
>@@ -1085,9 +1145,9 @@ void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int width) {
>       : "cc", "memory", "q0", "q8", "q9", "q10", "q11");
> }
> 
>-void ARGBToRGB565DitherRow_NEON(const uint8* src_argb,
>-                                uint8* dst_rgb,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_NEON(const uint8_t* src_argb,
>+                                uint8_t* dst_rgb,
>+                                const uint32_t dither4,
>                                 int width) {
>   asm volatile(
>       "vdup.32    d2, %2                         \n"  // dither4
>@@ -1107,8 +1167,8 @@ void ARGBToRGB565DitherRow_NEON(const uint8* src_argb,
>       : "cc", "memory", "q0", "q1", "q8", "q9", "q10", "q11");
> }
> 
>-void ARGBToARGB1555Row_NEON(const uint8* src_argb,
>-                            uint8* dst_argb1555,
>+void ARGBToARGB1555Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb1555,
>                             int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1124,8 +1184,8 @@ void ARGBToARGB1555Row_NEON(const uint8* src_argb,
>       : "cc", "memory", "q0", "q8", "q9", "q10", "q11");
> }
> 
>-void ARGBToARGB4444Row_NEON(const uint8* src_argb,
>-                            uint8* dst_argb4444,
>+void ARGBToARGB4444Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb4444,
>                             int width) {
>   asm volatile(
>       "vmov.u8    d4, #0x0f                      \n"  // bits to clear with
>@@ -1143,7 +1203,7 @@ void ARGBToARGB4444Row_NEON(const uint8* src_argb,
>       : "cc", "memory", "q0", "q8", "q9", "q10", "q11");
> }
> 
>-void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>+void ARGBToYRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d24, #13                       \n"  // B * 0.1016 coefficient
>       "vmov.u8    d25, #65                       \n"  // G * 0.5078 coefficient
>@@ -1166,7 +1226,9 @@ void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>       : "cc", "memory", "q0", "q1", "q2", "q12", "q13");
> }
> 
>-void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) {
>+void ARGBExtractAlphaRow_NEON(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width) {
>   asm volatile(
>       "1:                                        \n"
>       "vld4.8     {d0, d2, d4, d6}, [%0]!        \n"  // load 8 ARGB pixels
>@@ -1182,7 +1244,7 @@ void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) {
>       );
> }
> 
>-void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>+void ARGBToYJRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d24, #15                       \n"  // B * 0.11400 coefficient
>       "vmov.u8    d25, #75                       \n"  // G * 0.58700 coefficient
>@@ -1204,9 +1266,9 @@ void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
> }
> 
> // 8x1 pixels.
>-void ARGBToUV444Row_NEON(const uint8* src_argb,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void ARGBToUV444Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "vmov.u8    d24, #112                      \n"  // UB / VR 0.875
>@@ -1260,10 +1322,10 @@ void ARGBToUV444Row_NEON(const uint8* src_argb,
> // clang-format on
> 
> // TODO(fbarchard): Consider vhadd vertical, then vpaddl horizontal, avoid shr.
>-void ARGBToUVRow_NEON(const uint8* src_argb,
>+void ARGBToUVRow_NEON(const uint8_t* src_argb,
>                       int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_argb
>@@ -1306,10 +1368,10 @@ void ARGBToUVRow_NEON(const uint8* src_argb,
> }
> 
> // TODO(fbarchard): Subsample match C code.
>-void ARGBToUVJRow_NEON(const uint8* src_argb,
>+void ARGBToUVJRow_NEON(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_argb
>@@ -1351,10 +1413,10 @@ void ARGBToUVJRow_NEON(const uint8* src_argb,
>   );
> }
> 
>-void BGRAToUVRow_NEON(const uint8* src_bgra,
>+void BGRAToUVRow_NEON(const uint8_t* src_bgra,
>                       int src_stride_bgra,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_bgra
>@@ -1396,10 +1458,10 @@ void BGRAToUVRow_NEON(const uint8* src_bgra,
>   );
> }
> 
>-void ABGRToUVRow_NEON(const uint8* src_abgr,
>+void ABGRToUVRow_NEON(const uint8_t* src_abgr,
>                       int src_stride_abgr,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_abgr
>@@ -1441,10 +1503,10 @@ void ABGRToUVRow_NEON(const uint8* src_abgr,
>   );
> }
> 
>-void RGBAToUVRow_NEON(const uint8* src_rgba,
>+void RGBAToUVRow_NEON(const uint8_t* src_rgba,
>                       int src_stride_rgba,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_rgba
>@@ -1486,10 +1548,10 @@ void RGBAToUVRow_NEON(const uint8* src_rgba,
>   );
> }
> 
>-void RGB24ToUVRow_NEON(const uint8* src_rgb24,
>+void RGB24ToUVRow_NEON(const uint8_t* src_rgb24,
>                        int src_stride_rgb24,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_rgb24
>@@ -1531,10 +1593,10 @@ void RGB24ToUVRow_NEON(const uint8* src_rgb24,
>   );
> }
> 
>-void RAWToUVRow_NEON(const uint8* src_raw,
>+void RAWToUVRow_NEON(const uint8_t* src_raw,
>                      int src_stride_raw,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   asm volatile (
>     "add        %1, %0, %1                     \n"  // src_stride + src_raw
>@@ -1577,10 +1639,10 @@ void RAWToUVRow_NEON(const uint8* src_raw,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void RGB565ToUVRow_NEON(const uint8* src_rgb565,
>+void RGB565ToUVRow_NEON(const uint8_t* src_rgb565,
>                         int src_stride_rgb565,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width) {
>   asm volatile(
>       "add        %1, %0, %1                     \n"  // src_stride + src_argb
>@@ -1643,10 +1705,10 @@ void RGB565ToUVRow_NEON(const uint8* src_rgb565,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void ARGB1555ToUVRow_NEON(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_NEON(const uint8_t* src_argb1555,
>                           int src_stride_argb1555,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width) {
>   asm volatile(
>       "add        %1, %0, %1                     \n"  // src_stride + src_argb
>@@ -1709,10 +1771,10 @@ void ARGB1555ToUVRow_NEON(const uint8* src_argb1555,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void ARGB4444ToUVRow_NEON(const uint8* src_argb4444,
>+void ARGB4444ToUVRow_NEON(const uint8_t* src_argb4444,
>                           int src_stride_argb4444,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width) {
>   asm volatile(
>       "add        %1, %0, %1                     \n"  // src_stride + src_argb
>@@ -1774,7 +1836,7 @@ void ARGB4444ToUVRow_NEON(const uint8* src_argb4444,
>         "q9", "q10", "q11", "q12", "q13", "q14", "q15");
> }
> 
>-void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width) {
>+void RGB565ToYRow_NEON(const uint8_t* src_rgb565, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d24, #13                       \n"  // B * 0.1016 coefficient
>       "vmov.u8    d25, #65                       \n"  // G * 0.5078 coefficient
>@@ -1798,7 +1860,9 @@ void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width) {
>       : "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13");
> }
> 
>-void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width) {
>+void ARGB1555ToYRow_NEON(const uint8_t* src_argb1555,
>+                         uint8_t* dst_y,
>+                         int width) {
>   asm volatile(
>       "vmov.u8    d24, #13                       \n"  // B * 0.1016 coefficient
>       "vmov.u8    d25, #65                       \n"  // G * 0.5078 coefficient
>@@ -1822,7 +1886,9 @@ void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width) {
>       : "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13");
> }
> 
>-void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width) {
>+void ARGB4444ToYRow_NEON(const uint8_t* src_argb4444,
>+                         uint8_t* dst_y,
>+                         int width) {
>   asm volatile(
>       "vmov.u8    d24, #13                       \n"  // B * 0.1016 coefficient
>       "vmov.u8    d25, #65                       \n"  // G * 0.5078 coefficient
>@@ -1846,7 +1912,7 @@ void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width) {
>       : "cc", "memory", "q0", "q1", "q2", "q3", "q12", "q13");
> }
> 
>-void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width) {
>+void BGRAToYRow_NEON(const uint8_t* src_bgra, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d4, #33                        \n"  // R * 0.2578 coefficient
>       "vmov.u8    d5, #65                        \n"  // G * 0.5078 coefficient
>@@ -1869,7 +1935,7 @@ void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width) {
>       : "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8");
> }
> 
>-void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width) {
>+void ABGRToYRow_NEON(const uint8_t* src_abgr, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d4, #33                        \n"  // R * 0.2578 coefficient
>       "vmov.u8    d5, #65                        \n"  // G * 0.5078 coefficient
>@@ -1892,7 +1958,7 @@ void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width) {
>       : "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8");
> }
> 
>-void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width) {
>+void RGBAToYRow_NEON(const uint8_t* src_rgba, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d4, #13                        \n"  // B * 0.1016 coefficient
>       "vmov.u8    d5, #65                        \n"  // G * 0.5078 coefficient
>@@ -1915,7 +1981,7 @@ void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width) {
>       : "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8");
> }
> 
>-void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width) {
>+void RGB24ToYRow_NEON(const uint8_t* src_rgb24, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d4, #13                        \n"  // B * 0.1016 coefficient
>       "vmov.u8    d5, #65                        \n"  // G * 0.5078 coefficient
>@@ -1938,7 +2004,7 @@ void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width) {
>       : "cc", "memory", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "q8");
> }
> 
>-void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width) {
>+void RAWToYRow_NEON(const uint8_t* src_raw, uint8_t* dst_y, int width) {
>   asm volatile(
>       "vmov.u8    d4, #33                        \n"  // R * 0.2578 coefficient
>       "vmov.u8    d5, #65                        \n"  // G * 0.5078 coefficient
>@@ -1962,8 +2028,8 @@ void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width) {
> }
> 
> // Bilinear filter 16x2 -> 16x1
>-void InterpolateRow_NEON(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void InterpolateRow_NEON(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>                          int dst_width,
>                          int source_y_fraction) {
>@@ -2021,9 +2087,9 @@ void InterpolateRow_NEON(uint8* dst_ptr,
> }
> 
> // dr * (256 - sa) / 256 + sr = dr - dr * sa / 256 + sr
>-void ARGBBlendRow_NEON(const uint8* src_argb0,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBBlendRow_NEON(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width) {
>   asm volatile(
>       "subs       %3, #8                         \n"
>@@ -2081,7 +2147,9 @@ void ARGBBlendRow_NEON(const uint8* src_argb0,
> }
> 
> // Attenuate 8 pixels at a time.
>-void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBAttenuateRow_NEON(const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>+                           int width) {
>   asm volatile(
>       // Attenuate 8 pixels.
>       "1:                                        \n"
>@@ -2104,7 +2172,7 @@ void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
> 
> // Quantize 8 ARGB pixels (32 bytes).
> // dst = (dst * scale >> 16) * interval_size + interval_offset;
>-void ARGBQuantizeRow_NEON(uint8* dst_argb,
>+void ARGBQuantizeRow_NEON(uint8_t* dst_argb,
>                           int scale,
>                           int interval_size,
>                           int interval_offset,
>@@ -2147,10 +2215,10 @@ void ARGBQuantizeRow_NEON(uint8* dst_argb,
> // Shade 8 pixels at a time by specified value.
> // NOTE vqrdmulh.s16 q10, q10, d0[0] must use a scaler register from 0 to 8.
> // Rounding in vqrdmulh does +1 to high if high bit of low s16 is set.
>-void ARGBShadeRow_NEON(const uint8* src_argb,
>-                       uint8* dst_argb,
>+void ARGBShadeRow_NEON(const uint8_t* src_argb,
>+                       uint8_t* dst_argb,
>                        int width,
>-                       uint32 value) {
>+                       uint32_t value) {
>   asm volatile(
>       "vdup.u32   q0, %3                         \n"  // duplicate scale value.
>       "vzip.u8    d0, d1                         \n"  // d0 aarrggbb.
>@@ -2184,7 +2252,7 @@ void ARGBShadeRow_NEON(const uint8* src_argb,
> // Convert 8 ARGB pixels (64 bytes) to 8 Gray ARGB pixels
> // Similar to ARGBToYJ but stores ARGB.
> // C code is (15 * b + 75 * g + 38 * r + 64) >> 7;
>-void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBGrayRow_NEON(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "vmov.u8    d24, #15                       \n"  // B * 0.11400 coefficient
>       "vmov.u8    d25, #75                       \n"  // G * 0.58700 coefficient
>@@ -2211,7 +2279,7 @@ void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
> //    b = (r * 35 + g * 68 + b * 17) >> 7
> //    g = (r * 45 + g * 88 + b * 22) >> 7
> //    r = (r * 50 + g * 98 + b * 24) >> 7
>-void ARGBSepiaRow_NEON(uint8* dst_argb, int width) {
>+void ARGBSepiaRow_NEON(uint8_t* dst_argb, int width) {
>   asm volatile(
>       "vmov.u8    d20, #17                       \n"  // BB coefficient
>       "vmov.u8    d21, #68                       \n"  // BG coefficient
>@@ -2249,9 +2317,9 @@ void ARGBSepiaRow_NEON(uint8* dst_argb, int width) {
> // Tranform 8 ARGB pixels (32 bytes) with color matrix.
> // TODO(fbarchard): Was same as Sepia except matrix is provided.  This function
> // needs to saturate.  Consider doing a non-saturating version.
>-void ARGBColorMatrixRow_NEON(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const int8* matrix_argb,
>+void ARGBColorMatrixRow_NEON(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>+                             const int8_t* matrix_argb,
>                              int width) {
>   asm volatile(
>       "vld1.8     {q2}, [%3]                     \n"  // load 3 ARGB vectors.
>@@ -2308,9 +2376,9 @@ void ARGBColorMatrixRow_NEON(const uint8* src_argb,
> }
> 
> // Multiply 2 rows of ARGB pixels together, 8 pixels at a time.
>-void ARGBMultiplyRow_NEON(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2337,9 +2405,9 @@ void ARGBMultiplyRow_NEON(const uint8* src_argb0,
> }
> 
> // Add 2 rows of ARGB pixels together, 8 pixels at a time.
>-void ARGBAddRow_NEON(const uint8* src_argb0,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_NEON(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2360,9 +2428,9 @@ void ARGBAddRow_NEON(const uint8* src_argb0,
> }
> 
> // Subtract 2 rows of ARGB pixels, 8 pixels at a time.
>-void ARGBSubtractRow_NEON(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2387,9 +2455,9 @@ void ARGBSubtractRow_NEON(const uint8* src_argb0,
> // R = Sobel
> // G = Sobel
> // B = Sobel
>-void SobelRow_NEON(const uint8* src_sobelx,
>-                   const uint8* src_sobely,
>-                   uint8* dst_argb,
>+void SobelRow_NEON(const uint8_t* src_sobelx,
>+                   const uint8_t* src_sobely,
>+                   uint8_t* dst_argb,
>                    int width) {
>   asm volatile(
>       "vmov.u8    d3, #255                       \n"  // alpha
>@@ -2412,9 +2480,9 @@ void SobelRow_NEON(const uint8* src_sobelx,
> }
> 
> // Adds Sobel X and Sobel Y and stores Sobel into plane.
>-void SobelToPlaneRow_NEON(const uint8* src_sobelx,
>-                          const uint8* src_sobely,
>-                          uint8* dst_y,
>+void SobelToPlaneRow_NEON(const uint8_t* src_sobelx,
>+                          const uint8_t* src_sobely,
>+                          uint8_t* dst_y,
>                           int width) {
>   asm volatile(
>       // 16 pixel loop.
>@@ -2438,9 +2506,9 @@ void SobelToPlaneRow_NEON(const uint8* src_sobelx,
> // R = Sobel X
> // G = Sobel
> // B = Sobel Y
>-void SobelXYRow_NEON(const uint8* src_sobelx,
>-                     const uint8* src_sobely,
>-                     uint8* dst_argb,
>+void SobelXYRow_NEON(const uint8_t* src_sobelx,
>+                     const uint8_t* src_sobely,
>+                     uint8_t* dst_argb,
>                      int width) {
>   asm volatile(
>       "vmov.u8    d3, #255                       \n"  // alpha
>@@ -2464,10 +2532,10 @@ void SobelXYRow_NEON(const uint8* src_sobelx,
> // -1  0  1
> // -2  0  2
> // -1  0  1
>-void SobelXRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    const uint8* src_y2,
>-                    uint8* dst_sobelx,
>+void SobelXRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    const uint8_t* src_y2,
>+                    uint8_t* dst_sobelx,
>                     int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -2503,9 +2571,9 @@ void SobelXRow_NEON(const uint8* src_y0,
> // -1 -2 -1
> //  0  0  0
> //  1  2  1
>-void SobelYRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    uint8* dst_sobely,
>+void SobelYRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    uint8_t* dst_sobely,
>                     int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -2536,7 +2604,10 @@ void SobelYRow_NEON(const uint8* src_y0,
>       );
> }
> 
>-void HalfFloat1Row_NEON(const uint16* src, uint16* dst, float, int width) {
>+void HalfFloat1Row_NEON(const uint16_t* src,
>+                        uint16_t* dst,
>+                        float /*unused*/,
>+                        int width) {
>   asm volatile(
>       "vdup.32    q0, %3                         \n"
> 
>@@ -2561,7 +2632,10 @@ void HalfFloat1Row_NEON(const uint16* src, uint16* dst, float, int width) {
> }
> 
> // TODO(fbarchard): multiply by element.
>-void HalfFloatRow_NEON(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_NEON(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width) {
>   asm volatile(
>       "vdup.32    q0, %3                         \n"
> 
>@@ -2585,6 +2659,32 @@ void HalfFloatRow_NEON(const uint16* src, uint16* dst, float scale, int width) {
>       : "cc", "memory", "q0", "q1", "q2", "q3");
> }
> 
>+void ByteToFloatRow_NEON(const uint8_t* src,
>+                         float* dst,
>+                         float scale,
>+                         int width) {
>+  asm volatile(
>+      "vdup.32    q0, %3                         \n"
>+
>+      "1:                                        \n"
>+      "vld1.8     {d2}, [%0]!                    \n"  // load 8 bytes
>+      "subs       %2, %2, #8                     \n"  // 8 pixels per loop
>+      "vmovl.u8   q1, d2                         \n"  // 8 shorts
>+      "vmovl.u16  q2, d2                         \n"  // 8 ints
>+      "vmovl.u16  q3, d3                         \n"
>+      "vcvt.f32.u32  q2, q2                      \n"  // 8 floats
>+      "vcvt.f32.u32  q3, q3                      \n"
>+      "vmul.f32   q2, q2, d0[0]                  \n"  // scale
>+      "vmul.f32   q3, q3, d0[0]                  \n"
>+      "vst1.8     {q2, q3}, [%1]!                \n"  // store 8 floats
>+      "bgt        1b                             \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      : "r"(scale)   // %3
>+      : "cc", "memory", "q0", "q1", "q2", "q3");
>+}
>+
> #endif  // !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__)..
> 
> #ifdef __cplusplus
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon64.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon64.cc
>index 5616d8a5b5ffb0069d0f45dc508428e31587394f..24b4520babceade20c58d4108d0d378d170e21a4 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon64.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_neon64.cc
>@@ -112,10 +112,10 @@ extern "C" {
>   ".8h, #6     \n"                               /* G */            \
>   "sqshrun    " #vR ".8b, " #vR ".8h, #6     \n" /* R */
> 
>-void I444ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I444ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -141,10 +141,10 @@ void I444ToARGBRow_NEON(const uint8* src_y,
>   );
> }
> 
>-void I422ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_argb,
>+void I422ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -170,11 +170,11 @@ void I422ToARGBRow_NEON(const uint8* src_y,
>   );
> }
> 
>-void I422AlphaToARGBRow_NEON(const uint8* src_y,
>-                             const uint8* src_u,
>-                             const uint8* src_v,
>-                             const uint8* src_a,
>-                             uint8* dst_argb,
>+void I422AlphaToARGBRow_NEON(const uint8_t* src_y,
>+                             const uint8_t* src_u,
>+                             const uint8_t* src_v,
>+                             const uint8_t* src_a,
>+                             uint8_t* dst_argb,
>                              const struct YuvConstants* yuvconstants,
>                              int width) {
>   asm volatile (
>@@ -201,10 +201,10 @@ void I422AlphaToARGBRow_NEON(const uint8* src_y,
>   );
> }
> 
>-void I422ToRGBARow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_rgba,
>+void I422ToRGBARow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_rgba,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -230,10 +230,10 @@ void I422ToRGBARow_NEON(const uint8* src_y,
>   );
> }
> 
>-void I422ToRGB24Row_NEON(const uint8* src_y,
>-                         const uint8* src_u,
>-                         const uint8* src_v,
>-                         uint8* dst_rgb24,
>+void I422ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_u,
>+                         const uint8_t* src_v,
>+                         uint8_t* dst_rgb24,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   asm volatile (
>@@ -265,10 +265,10 @@ void I422ToRGB24Row_NEON(const uint8* src_y,
>   "sri        v0.8h,  v21.8h, #5             \n" /* RG                   */ \
>   "sri        v0.8h,  v20.8h, #11            \n" /* RGB                  */
> 
>-void I422ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_u,
>-                          const uint8* src_v,
>-                          uint8* dst_rgb565,
>+void I422ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_u,
>+                          const uint8_t* src_v,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   asm volatile(
>@@ -301,10 +301,10 @@ void I422ToRGB565Row_NEON(const uint8* src_y,
>   "sri        v0.8h,  v21.8h, #6             \n" /* ARG                  */ \
>   "sri        v0.8h,  v20.8h, #11            \n" /* ARGB                 */
> 
>-void I422ToARGB1555Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb1555,
>+void I422ToARGB1555Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb1555,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   asm volatile(
>@@ -339,10 +339,10 @@ void I422ToARGB1555Row_NEON(const uint8* src_y,
>   "orr        v1.8b,  v22.8b, v23.8b         \n" /* RA                   */  \
>   "zip1       v0.16b, v0.16b, v1.16b         \n" /* BGRA                 */
> 
>-void I422ToARGB4444Row_NEON(const uint8* src_y,
>-                            const uint8* src_u,
>-                            const uint8* src_v,
>-                            uint8* dst_argb4444,
>+void I422ToARGB4444Row_NEON(const uint8_t* src_y,
>+                            const uint8_t* src_u,
>+                            const uint8_t* src_v,
>+                            uint8_t* dst_argb4444,
>                             const struct YuvConstants* yuvconstants,
>                             int width) {
>   asm volatile (
>@@ -370,7 +370,7 @@ void I422ToARGB4444Row_NEON(const uint8* src_y,
>   );
> }
> 
>-void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>+void I400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   asm volatile (
>     YUVTORGB_SETUP
>     "movi       v23.8b, #255                   \n"
>@@ -392,7 +392,7 @@ void I400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>   );
> }
> 
>-void J400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>+void J400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "movi       v23.8b, #255                   \n"
>       "1:                                        \n"
>@@ -409,9 +409,9 @@ void J400ToARGBRow_NEON(const uint8* src_y, uint8* dst_argb, int width) {
>       : "cc", "memory", "v20", "v21", "v22", "v23");
> }
> 
>-void NV12ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_uv,
>-                        uint8* dst_argb,
>+void NV12ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_uv,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -436,9 +436,9 @@ void NV12ToARGBRow_NEON(const uint8* src_y,
>   );
> }
> 
>-void NV21ToARGBRow_NEON(const uint8* src_y,
>-                        const uint8* src_vu,
>-                        uint8* dst_argb,
>+void NV21ToARGBRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_vu,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -463,9 +463,61 @@ void NV21ToARGBRow_NEON(const uint8* src_y,
>   );
> }
> 
>-void NV12ToRGB565Row_NEON(const uint8* src_y,
>-                          const uint8* src_uv,
>-                          uint8* dst_rgb565,
>+void NV12ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_uv,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP
>+  "1:                                          \n"
>+    READNV12
>+    YUVTORGB(v22, v21, v20)
>+    "subs       %w3, %w3, #8                   \n"
>+    "st3        {v20.8b,v21.8b,v22.8b}, [%2], #24     \n"
>+    "b.gt       1b                             \n"
>+    : "+r"(src_y),     // %0
>+      "+r"(src_uv),    // %1
>+      "+r"(dst_rgb24),  // %2
>+      "+r"(width)      // %3
>+    : [kUVToRB]"r"(&yuvconstants->kUVToRB),
>+      [kUVToG]"r"(&yuvconstants->kUVToG),
>+      [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR),
>+      [kYToRgb]"r"(&yuvconstants->kYToRgb)
>+    : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20",
>+      "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30"
>+  );
>+}
>+
>+void NV21ToRGB24Row_NEON(const uint8_t* src_y,
>+                         const uint8_t* src_vu,
>+                         uint8_t* dst_rgb24,
>+                         const struct YuvConstants* yuvconstants,
>+                         int width) {
>+  asm volatile (
>+    YUVTORGB_SETUP
>+  "1:                                          \n"
>+    READNV21
>+    YUVTORGB(v22, v21, v20)
>+    "subs       %w3, %w3, #8                   \n"
>+    "st3        {v20.8b,v21.8b,v22.8b}, [%2], #24     \n"
>+    "b.gt       1b                             \n"
>+    : "+r"(src_y),     // %0
>+      "+r"(src_vu),    // %1
>+      "+r"(dst_rgb24),  // %2
>+      "+r"(width)      // %3
>+    : [kUVToRB]"r"(&yuvconstants->kUVToRB),
>+      [kUVToG]"r"(&yuvconstants->kUVToG),
>+      [kUVBiasBGR]"r"(&yuvconstants->kUVBiasBGR),
>+      [kYToRgb]"r"(&yuvconstants->kYToRgb)
>+    : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20",
>+      "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30"
>+  );
>+}
>+
>+void NV12ToRGB565Row_NEON(const uint8_t* src_y,
>+                          const uint8_t* src_uv,
>+                          uint8_t* dst_rgb565,
>                           const struct YuvConstants* yuvconstants,
>                           int width) {
>   asm volatile(
>@@ -488,8 +540,8 @@ void NV12ToRGB565Row_NEON(const uint8* src_y,
>         "v21", "v22", "v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30");
> }
> 
>-void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
>-                        uint8* dst_argb,
>+void YUY2ToARGBRow_NEON(const uint8_t* src_yuy2,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -513,8 +565,8 @@ void YUY2ToARGBRow_NEON(const uint8* src_yuy2,
>   );
> }
> 
>-void UYVYToARGBRow_NEON(const uint8* src_uyvy,
>-                        uint8* dst_argb,
>+void UYVYToARGBRow_NEON(const uint8_t* src_uyvy,
>+                        uint8_t* dst_argb,
>                         const struct YuvConstants* yuvconstants,
>                         int width) {
>   asm volatile (
>@@ -539,9 +591,9 @@ void UYVYToARGBRow_NEON(const uint8* src_uyvy,
> }
> 
> // Reads 16 pairs of UV and write even values to dst_u and odd to dst_v.
>-void SplitUVRow_NEON(const uint8* src_uv,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+void SplitUVRow_NEON(const uint8_t* src_uv,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -560,9 +612,9 @@ void SplitUVRow_NEON(const uint8* src_uv,
> }
> 
> // Reads 16 U's and V's and writes out 16 pairs of UV.
>-void MergeUVRow_NEON(const uint8* src_u,
>-                     const uint8* src_v,
>-                     uint8* dst_uv,
>+void MergeUVRow_NEON(const uint8_t* src_u,
>+                     const uint8_t* src_v,
>+                     uint8_t* dst_uv,
>                      int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -581,10 +633,10 @@ void MergeUVRow_NEON(const uint8* src_u,
> }
> 
> // Reads 16 packed RGB and write to planar dst_r, dst_g, dst_b.
>-void SplitRGBRow_NEON(const uint8* src_rgb,
>-                      uint8* dst_r,
>-                      uint8* dst_g,
>-                      uint8* dst_b,
>+void SplitRGBRow_NEON(const uint8_t* src_rgb,
>+                      uint8_t* dst_r,
>+                      uint8_t* dst_g,
>+                      uint8_t* dst_b,
>                       int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -605,10 +657,10 @@ void SplitRGBRow_NEON(const uint8* src_rgb,
> }
> 
> // Reads 16 planar R's, G's and B's and writes out 16 packed RGB at a time
>-void MergeRGBRow_NEON(const uint8* src_r,
>-                      const uint8* src_g,
>-                      const uint8* src_b,
>-                      uint8* dst_rgb,
>+void MergeRGBRow_NEON(const uint8_t* src_r,
>+                      const uint8_t* src_g,
>+                      const uint8_t* src_b,
>+                      uint8_t* dst_rgb,
>                       int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -629,7 +681,7 @@ void MergeRGBRow_NEON(const uint8* src_r,
> }
> 
> // Copy multiple of 32.
>-void CopyRow_NEON(const uint8* src, uint8* dst, int count) {
>+void CopyRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ldp        q0, q1, [%0], #32              \n"
>@@ -638,14 +690,14 @@ void CopyRow_NEON(const uint8* src, uint8* dst, int count) {
>       "b.gt       1b                             \n"
>       : "+r"(src),                  // %0
>         "+r"(dst),                  // %1
>-        "+r"(count)                 // %2  // Output registers
>+        "+r"(width)                 // %2  // Output registers
>       :                             // Input registers
>       : "cc", "memory", "v0", "v1"  // Clobber List
>       );
> }
> 
>-// SetRow writes 'count' bytes using an 8 bit value repeated.
>-void SetRow_NEON(uint8* dst, uint8 v8, int count) {
>+// SetRow writes 'width' bytes using an 8 bit value repeated.
>+void SetRow_NEON(uint8_t* dst, uint8_t v8, int width) {
>   asm volatile(
>       "dup        v0.16b, %w2                    \n"  // duplicate 16 bytes
>       "1:                                        \n"
>@@ -653,12 +705,12 @@ void SetRow_NEON(uint8* dst, uint8 v8, int count) {
>       "st1        {v0.16b}, [%0], #16            \n"  // store
>       "b.gt       1b                             \n"
>       : "+r"(dst),   // %0
>-        "+r"(count)  // %1
>+        "+r"(width)  // %1
>       : "r"(v8)      // %2
>       : "cc", "memory", "v0");
> }
> 
>-void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
>+void ARGBSetRow_NEON(uint8_t* dst, uint32_t v32, int width) {
>   asm volatile(
>       "dup        v0.4s, %w2                     \n"  // duplicate 4 ints
>       "1:                                        \n"
>@@ -666,12 +718,12 @@ void ARGBSetRow_NEON(uint8* dst, uint32 v32, int count) {
>       "st1        {v0.16b}, [%0], #16            \n"  // store
>       "b.gt       1b                             \n"
>       : "+r"(dst),   // %0
>-        "+r"(count)  // %1
>+        "+r"(width)  // %1
>       : "r"(v32)     // %2
>       : "cc", "memory", "v0");
> }
> 
>-void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>+void MirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       // Start at end of source row.
>       "add        %0, %0, %w2, sxtw              \n"
>@@ -690,9 +742,9 @@ void MirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>       : "cc", "memory", "v0");
> }
> 
>-void MirrorUVRow_NEON(const uint8* src_uv,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+void MirrorUVRow_NEON(const uint8_t* src_uv,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>   asm volatile(
>       // Start at end of source row.
>@@ -714,7 +766,7 @@ void MirrorUVRow_NEON(const uint8* src_uv,
>       : "cc", "memory", "v0", "v1");
> }
> 
>-void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>+void ARGBMirrorRow_NEON(const uint8_t* src, uint8_t* dst, int width) {
>   asm volatile(
>       // Start at end of source row.
>       "add        %0, %0, %w2, sxtw #2           \n"
>@@ -733,7 +785,9 @@ void ARGBMirrorRow_NEON(const uint8* src, uint8* dst, int width) {
>       : "cc", "memory", "v0");
> }
> 
>-void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) {
>+void RGB24ToARGBRow_NEON(const uint8_t* src_rgb24,
>+                         uint8_t* dst_argb,
>+                         int width) {
>   asm volatile(
>       "movi       v4.8b, #255                    \n"  // Alpha
>       "1:                                        \n"
>@@ -749,7 +803,7 @@ void RGB24ToARGBRow_NEON(const uint8* src_rgb24, uint8* dst_argb, int width) {
>       );
> }
> 
>-void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) {
>+void RAWToARGBRow_NEON(const uint8_t* src_raw, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "movi       v5.8b, #255                    \n"  // Alpha
>       "1:                                        \n"
>@@ -767,7 +821,7 @@ void RAWToARGBRow_NEON(const uint8* src_raw, uint8* dst_argb, int width) {
>       );
> }
> 
>-void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width) {
>+void RAWToRGB24Row_NEON(const uint8_t* src_raw, uint8_t* dst_rgb24, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld3        {v0.8b,v1.8b,v2.8b}, [%0], #24 \n"  // read r g b
>@@ -797,7 +851,9 @@ void RAWToRGB24Row_NEON(const uint8* src_raw, uint8* dst_rgb24, int width) {
>   "orr        v0.16b, v0.16b, v2.16b         \n" /* R,B                  */ \
>   "dup        v2.2D, v0.D[1]                 \n" /* R                    */
> 
>-void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width) {
>+void RGB565ToARGBRow_NEON(const uint8_t* src_rgb565,
>+                          uint8_t* dst_argb,
>+                          int width) {
>   asm volatile(
>       "movi       v3.8b, #255                    \n"  // Alpha
>       "1:                                        \n"
>@@ -851,8 +907,8 @@ void RGB565ToARGBRow_NEON(const uint8* src_rgb565, uint8* dst_argb, int width) {
>   "orr        v2.16b, v1.16b, v3.16b         \n" /* R                    */ \
>   "dup        v1.2D, v0.D[1]                 \n" /* G */
> 
>-void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555,
>-                            uint8* dst_argb,
>+void ARGB1555ToARGBRow_NEON(const uint8_t* src_argb1555,
>+                            uint8_t* dst_argb,
>                             int width) {
>   asm volatile(
>       "movi       v3.8b, #255                    \n"  // Alpha
>@@ -883,8 +939,8 @@ void ARGB1555ToARGBRow_NEON(const uint8* src_argb1555,
>   "dup        v0.2D, v2.D[1]                 \n"                            \
>   "dup        v1.2D, v3.D[1]                 \n"
> 
>-void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444,
>-                            uint8* dst_argb,
>+void ARGB4444ToARGBRow_NEON(const uint8_t* src_argb4444,
>+                            uint8_t* dst_argb,
>                             int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -902,7 +958,9 @@ void ARGB4444ToARGBRow_NEON(const uint8* src_argb4444,
>       );
> }
> 
>-void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int width) {
>+void ARGBToRGB24Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_rgb24,
>+                         int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v1.8b,v2.8b,v3.8b,v4.8b}, [%0], #32 \n"  // load 8 ARGB
>@@ -918,7 +976,7 @@ void ARGBToRGB24Row_NEON(const uint8* src_argb, uint8* dst_rgb24, int width) {
>       );
> }
> 
>-void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int width) {
>+void ARGBToRAWRow_NEON(const uint8_t* src_argb, uint8_t* dst_raw, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v1.8b,v2.8b,v3.8b,v4.8b}, [%0], #32 \n"  // load b g r a
>@@ -935,7 +993,7 @@ void ARGBToRAWRow_NEON(const uint8* src_argb, uint8* dst_raw, int width) {
>       );
> }
> 
>-void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width) {
>+void YUY2ToYRow_NEON(const uint8_t* src_yuy2, uint8_t* dst_y, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld2        {v0.16b,v1.16b}, [%0], #32     \n"  // load 16 pixels of YUY2.
>@@ -950,7 +1008,7 @@ void YUY2ToYRow_NEON(const uint8* src_yuy2, uint8* dst_y, int width) {
>       );
> }
> 
>-void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width) {
>+void UYVYToYRow_NEON(const uint8_t* src_uyvy, uint8_t* dst_y, int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld2        {v0.16b,v1.16b}, [%0], #32     \n"  // load 16 pixels of UYVY.
>@@ -965,9 +1023,9 @@ void UYVYToYRow_NEON(const uint8* src_uyvy, uint8* dst_y, int width) {
>       );
> }
> 
>-void YUY2ToUV422Row_NEON(const uint8* src_yuy2,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void YUY2ToUV422Row_NEON(const uint8_t* src_yuy2,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -985,9 +1043,9 @@ void YUY2ToUV422Row_NEON(const uint8* src_yuy2,
>       );
> }
> 
>-void UYVYToUV422Row_NEON(const uint8* src_uyvy,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void UYVYToUV422Row_NEON(const uint8_t* src_uyvy,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1005,12 +1063,12 @@ void UYVYToUV422Row_NEON(const uint8* src_uyvy,
>       );
> }
> 
>-void YUY2ToUVRow_NEON(const uint8* src_yuy2,
>+void YUY2ToUVRow_NEON(const uint8_t* src_yuy2,
>                       int stride_yuy2,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_yuy2b = src_yuy2 + stride_yuy2;
>+  const uint8_t* src_yuy2b = src_yuy2 + stride_yuy2;
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n"  // load 16 pixels
>@@ -1032,12 +1090,12 @@ void YUY2ToUVRow_NEON(const uint8* src_yuy2,
>       );
> }
> 
>-void UYVYToUVRow_NEON(const uint8* src_uyvy,
>+void UYVYToUVRow_NEON(const uint8_t* src_uyvy,
>                       int stride_uyvy,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_uyvyb = src_uyvy + stride_uyvy;
>+  const uint8_t* src_uyvyb = src_uyvy + stride_uyvy;
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v0.8b,v1.8b,v2.8b,v3.8b}, [%0], #32 \n"  // load 16 pixels
>@@ -1060,9 +1118,9 @@ void UYVYToUVRow_NEON(const uint8* src_uyvy,
> }
> 
> // For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-void ARGBShuffleRow_NEON(const uint8* src_argb,
>-                         uint8* dst_argb,
>-                         const uint8* shuffler,
>+void ARGBShuffleRow_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_argb,
>+                         const uint8_t* shuffler,
>                          int width) {
>   asm volatile(
>       "ld1        {v2.16b}, [%3]                 \n"  // shuffler
>@@ -1080,10 +1138,10 @@ void ARGBShuffleRow_NEON(const uint8* src_argb,
>       );
> }
> 
>-void I422ToYUY2Row_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_yuy2,
>+void I422ToYUY2Row_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_yuy2,
>                         int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1103,10 +1161,10 @@ void I422ToYUY2Row_NEON(const uint8* src_y,
>       : "cc", "memory", "v0", "v1", "v2", "v3");
> }
> 
>-void I422ToUYVYRow_NEON(const uint8* src_y,
>-                        const uint8* src_u,
>-                        const uint8* src_v,
>-                        uint8* dst_uyvy,
>+void I422ToUYVYRow_NEON(const uint8_t* src_y,
>+                        const uint8_t* src_u,
>+                        const uint8_t* src_v,
>+                        uint8_t* dst_uyvy,
>                         int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1126,7 +1184,9 @@ void I422ToUYVYRow_NEON(const uint8* src_y,
>       : "cc", "memory", "v0", "v1", "v2", "v3");
> }
> 
>-void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int width) {
>+void ARGBToRGB565Row_NEON(const uint8_t* src_argb,
>+                          uint8_t* dst_rgb565,
>+                          int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v20.8b,v21.8b,v22.8b,v23.8b}, [%0], #32 \n"  // load 8 pixels
>@@ -1141,9 +1201,9 @@ void ARGBToRGB565Row_NEON(const uint8* src_argb, uint8* dst_rgb565, int width) {
>       : "cc", "memory", "v0", "v20", "v21", "v22", "v23");
> }
> 
>-void ARGBToRGB565DitherRow_NEON(const uint8* src_argb,
>-                                uint8* dst_rgb,
>-                                const uint32 dither4,
>+void ARGBToRGB565DitherRow_NEON(const uint8_t* src_argb,
>+                                uint8_t* dst_rgb,
>+                                const uint32_t dither4,
>                                 int width) {
>   asm volatile(
>       "dup        v1.4s, %w2                     \n"  // dither4
>@@ -1162,8 +1222,8 @@ void ARGBToRGB565DitherRow_NEON(const uint8* src_argb,
>       : "cc", "memory", "v0", "v1", "v20", "v21", "v22", "v23");
> }
> 
>-void ARGBToARGB1555Row_NEON(const uint8* src_argb,
>-                            uint8* dst_argb1555,
>+void ARGBToARGB1555Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb1555,
>                             int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -1180,8 +1240,8 @@ void ARGBToARGB1555Row_NEON(const uint8* src_argb,
>       : "cc", "memory", "v0", "v20", "v21", "v22", "v23");
> }
> 
>-void ARGBToARGB4444Row_NEON(const uint8* src_argb,
>-                            uint8* dst_argb4444,
>+void ARGBToARGB4444Row_NEON(const uint8_t* src_argb,
>+                            uint8_t* dst_argb4444,
>                             int width) {
>   asm volatile(
>       "movi       v4.16b, #0x0f                  \n"  // bits to clear with
>@@ -1200,7 +1260,7 @@ void ARGBToARGB4444Row_NEON(const uint8* src_argb,
>       : "cc", "memory", "v0", "v1", "v4", "v20", "v21", "v22", "v23");
> }
> 
>-void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>+void ARGBToYRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #13                     \n"  // B * 0.1016 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1223,7 +1283,9 @@ void ARGBToYRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7");
> }
> 
>-void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) {
>+void ARGBExtractAlphaRow_NEON(const uint8_t* src_argb,
>+                              uint8_t* dst_a,
>+                              int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld4        {v0.16b,v1.16b,v2.16b,v3.16b}, [%0], #64 \n"  // load row 16
>@@ -1239,7 +1301,7 @@ void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) {
>       );
> }
> 
>-void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
>+void ARGBToYJRow_NEON(const uint8_t* src_argb, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #15                     \n"  // B * 0.11400 coefficient
>       "movi       v5.8b, #75                     \n"  // G * 0.58700 coefficient
>@@ -1261,9 +1323,9 @@ void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
> }
> 
> // 8x1 pixels.
>-void ARGBToUV444Row_NEON(const uint8* src_argb,
>-                         uint8* dst_u,
>-                         uint8* dst_v,
>+void ARGBToUV444Row_NEON(const uint8_t* src_argb,
>+                         uint8_t* dst_u,
>+                         uint8_t* dst_v,
>                          int width) {
>   asm volatile(
>       "movi       v24.8b, #112                   \n"  // UB / VR 0.875
>@@ -1328,12 +1390,12 @@ void ARGBToUV444Row_NEON(const uint8* src_argb,
> // TODO(fbarchard): Consider vhadd vertical, then vpaddl horizontal, avoid shr.
> // TODO(fbarchard): consider ptrdiff_t for all strides.
> 
>-void ARGBToUVRow_NEON(const uint8* src_argb,
>+void ARGBToUVRow_NEON(const uint8_t* src_argb,
>                       int src_stride_argb,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_argb_1 = src_argb + src_stride_argb;
>+  const uint8_t* src_argb_1 = src_argb + src_stride_argb;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1368,12 +1430,12 @@ void ARGBToUVRow_NEON(const uint8* src_argb,
> }
> 
> // TODO(fbarchard): Subsample match C code.
>-void ARGBToUVJRow_NEON(const uint8* src_argb,
>+void ARGBToUVJRow_NEON(const uint8_t* src_argb,
>                        int src_stride_argb,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  const uint8* src_argb_1 = src_argb + src_stride_argb;
>+  const uint8_t* src_argb_1 = src_argb + src_stride_argb;
>   asm volatile (
>     "movi       v20.8h, #63, lsl #0            \n"  // UB/VR coeff (0.500) / 2
>     "movi       v21.8h, #42, lsl #0            \n"  // UG coeff (-0.33126) / 2
>@@ -1411,12 +1473,12 @@ void ARGBToUVJRow_NEON(const uint8* src_argb,
>   );
> }
> 
>-void BGRAToUVRow_NEON(const uint8* src_bgra,
>+void BGRAToUVRow_NEON(const uint8_t* src_bgra,
>                       int src_stride_bgra,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_bgra_1 = src_bgra + src_stride_bgra;
>+  const uint8_t* src_bgra_1 = src_bgra + src_stride_bgra;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1449,12 +1511,12 @@ void BGRAToUVRow_NEON(const uint8* src_bgra,
>   );
> }
> 
>-void ABGRToUVRow_NEON(const uint8* src_abgr,
>+void ABGRToUVRow_NEON(const uint8_t* src_abgr,
>                       int src_stride_abgr,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_abgr_1 = src_abgr + src_stride_abgr;
>+  const uint8_t* src_abgr_1 = src_abgr + src_stride_abgr;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1487,12 +1549,12 @@ void ABGRToUVRow_NEON(const uint8* src_abgr,
>   );
> }
> 
>-void RGBAToUVRow_NEON(const uint8* src_rgba,
>+void RGBAToUVRow_NEON(const uint8_t* src_rgba,
>                       int src_stride_rgba,
>-                      uint8* dst_u,
>-                      uint8* dst_v,
>+                      uint8_t* dst_u,
>+                      uint8_t* dst_v,
>                       int width) {
>-  const uint8* src_rgba_1 = src_rgba + src_stride_rgba;
>+  const uint8_t* src_rgba_1 = src_rgba + src_stride_rgba;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1525,12 +1587,12 @@ void RGBAToUVRow_NEON(const uint8* src_rgba,
>   );
> }
> 
>-void RGB24ToUVRow_NEON(const uint8* src_rgb24,
>+void RGB24ToUVRow_NEON(const uint8_t* src_rgb24,
>                        int src_stride_rgb24,
>-                       uint8* dst_u,
>-                       uint8* dst_v,
>+                       uint8_t* dst_u,
>+                       uint8_t* dst_v,
>                        int width) {
>-  const uint8* src_rgb24_1 = src_rgb24 + src_stride_rgb24;
>+  const uint8_t* src_rgb24_1 = src_rgb24 + src_stride_rgb24;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1563,12 +1625,12 @@ void RGB24ToUVRow_NEON(const uint8* src_rgb24,
>   );
> }
> 
>-void RAWToUVRow_NEON(const uint8* src_raw,
>+void RAWToUVRow_NEON(const uint8_t* src_raw,
>                      int src_stride_raw,
>-                     uint8* dst_u,
>-                     uint8* dst_v,
>+                     uint8_t* dst_u,
>+                     uint8_t* dst_v,
>                      int width) {
>-  const uint8* src_raw_1 = src_raw + src_stride_raw;
>+  const uint8_t* src_raw_1 = src_raw + src_stride_raw;
>   asm volatile (
>     RGBTOUV_SETUP_REG
>   "1:                                          \n"
>@@ -1602,12 +1664,12 @@ void RAWToUVRow_NEON(const uint8* src_raw,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void RGB565ToUVRow_NEON(const uint8* src_rgb565,
>+void RGB565ToUVRow_NEON(const uint8_t* src_rgb565,
>                         int src_stride_rgb565,
>-                        uint8* dst_u,
>-                        uint8* dst_v,
>+                        uint8_t* dst_u,
>+                        uint8_t* dst_v,
>                         int width) {
>-  const uint8* src_rgb565_1 = src_rgb565 + src_stride_rgb565;
>+  const uint8_t* src_rgb565_1 = src_rgb565 + src_stride_rgb565;
>   asm volatile(
>       "movi       v22.8h, #56, lsl #0            \n"  // UB / VR coeff (0.875) /
>                                                       // 2
>@@ -1673,12 +1735,12 @@ void RGB565ToUVRow_NEON(const uint8* src_rgb565,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void ARGB1555ToUVRow_NEON(const uint8* src_argb1555,
>+void ARGB1555ToUVRow_NEON(const uint8_t* src_argb1555,
>                           int src_stride_argb1555,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width) {
>-  const uint8* src_argb1555_1 = src_argb1555 + src_stride_argb1555;
>+  const uint8_t* src_argb1555_1 = src_argb1555 + src_stride_argb1555;
>   asm volatile(
>       RGBTOUV_SETUP_REG
>       "1:                                        \n"
>@@ -1738,12 +1800,12 @@ void ARGB1555ToUVRow_NEON(const uint8* src_argb1555,
> }
> 
> // 16x2 pixels -> 8x1.  width is number of argb pixels. e.g. 16.
>-void ARGB4444ToUVRow_NEON(const uint8* src_argb4444,
>+void ARGB4444ToUVRow_NEON(const uint8_t* src_argb4444,
>                           int src_stride_argb4444,
>-                          uint8* dst_u,
>-                          uint8* dst_v,
>+                          uint8_t* dst_u,
>+                          uint8_t* dst_v,
>                           int width) {
>-  const uint8* src_argb4444_1 = src_argb4444 + src_stride_argb4444;
>+  const uint8_t* src_argb4444_1 = src_argb4444 + src_stride_argb4444;
>   asm volatile(
>       RGBTOUV_SETUP_REG
>       "1:                                        \n"
>@@ -1804,7 +1866,7 @@ void ARGB4444ToUVRow_NEON(const uint8* src_argb4444,
>       );
> }
> 
>-void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width) {
>+void RGB565ToYRow_NEON(const uint8_t* src_rgb565, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v24.8b, #13                    \n"  // B * 0.1016 coefficient
>       "movi       v25.8b, #65                    \n"  // G * 0.5078 coefficient
>@@ -1829,7 +1891,9 @@ void RGB565ToYRow_NEON(const uint8* src_rgb565, uint8* dst_y, int width) {
>         "v27");
> }
> 
>-void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width) {
>+void ARGB1555ToYRow_NEON(const uint8_t* src_argb1555,
>+                         uint8_t* dst_y,
>+                         int width) {
>   asm volatile(
>       "movi       v4.8b, #13                     \n"  // B * 0.1016 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1853,7 +1917,9 @@ void ARGB1555ToYRow_NEON(const uint8* src_argb1555, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7");
> }
> 
>-void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width) {
>+void ARGB4444ToYRow_NEON(const uint8_t* src_argb4444,
>+                         uint8_t* dst_y,
>+                         int width) {
>   asm volatile(
>       "movi       v24.8b, #13                    \n"  // B * 0.1016 coefficient
>       "movi       v25.8b, #65                    \n"  // G * 0.5078 coefficient
>@@ -1877,7 +1943,7 @@ void ARGB4444ToYRow_NEON(const uint8* src_argb4444, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v24", "v25", "v26", "v27");
> }
> 
>-void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width) {
>+void BGRAToYRow_NEON(const uint8_t* src_bgra, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #33                     \n"  // R * 0.2578 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1900,7 +1966,7 @@ void BGRAToYRow_NEON(const uint8* src_bgra, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16");
> }
> 
>-void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width) {
>+void ABGRToYRow_NEON(const uint8_t* src_abgr, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #33                     \n"  // R * 0.2578 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1923,7 +1989,7 @@ void ABGRToYRow_NEON(const uint8* src_abgr, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16");
> }
> 
>-void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width) {
>+void RGBAToYRow_NEON(const uint8_t* src_rgba, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #13                     \n"  // B * 0.1016 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1946,7 +2012,7 @@ void RGBAToYRow_NEON(const uint8* src_rgba, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16");
> }
> 
>-void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width) {
>+void RGB24ToYRow_NEON(const uint8_t* src_rgb24, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #13                     \n"  // B * 0.1016 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1969,7 +2035,7 @@ void RGB24ToYRow_NEON(const uint8* src_rgb24, uint8* dst_y, int width) {
>       : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16");
> }
> 
>-void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width) {
>+void RAWToYRow_NEON(const uint8_t* src_raw, uint8_t* dst_y, int width) {
>   asm volatile(
>       "movi       v4.8b, #33                     \n"  // R * 0.2578 coefficient
>       "movi       v5.8b, #65                     \n"  // G * 0.5078 coefficient
>@@ -1993,14 +2059,14 @@ void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int width) {
> }
> 
> // Bilinear filter 16x2 -> 16x1
>-void InterpolateRow_NEON(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void InterpolateRow_NEON(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>                          int dst_width,
>                          int source_y_fraction) {
>   int y1_fraction = source_y_fraction;
>   int y0_fraction = 256 - y1_fraction;
>-  const uint8* src_ptr1 = src_ptr + src_stride;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride;
>   asm volatile(
>       "cmp        %w4, #0                        \n"
>       "b.eq       100f                           \n"
>@@ -2053,9 +2119,9 @@ void InterpolateRow_NEON(uint8* dst_ptr,
> }
> 
> // dr * (256 - sa) / 256 + sr = dr - dr * sa / 256 + sr
>-void ARGBBlendRow_NEON(const uint8* src_argb0,
>-                       const uint8* src_argb1,
>-                       uint8* dst_argb,
>+void ARGBBlendRow_NEON(const uint8_t* src_argb0,
>+                       const uint8_t* src_argb1,
>+                       uint8_t* dst_argb,
>                        int width) {
>   asm volatile(
>       "subs       %w3, %w3, #8                   \n"
>@@ -2121,7 +2187,9 @@ void ARGBBlendRow_NEON(const uint8* src_argb0,
> }
> 
> // Attenuate 8 pixels at a time.
>-void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBAttenuateRow_NEON(const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>+                           int width) {
>   asm volatile(
>       // Attenuate 8 pixels.
>       "1:                                        \n"
>@@ -2145,7 +2213,7 @@ void ARGBAttenuateRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
> 
> // Quantize 8 ARGB pixels (32 bytes).
> // dst = (dst * scale >> 16) * interval_size + interval_offset;
>-void ARGBQuantizeRow_NEON(uint8* dst_argb,
>+void ARGBQuantizeRow_NEON(uint8_t* dst_argb,
>                           int scale,
>                           int interval_size,
>                           int interval_offset,
>@@ -2188,10 +2256,10 @@ void ARGBQuantizeRow_NEON(uint8* dst_argb,
> // Shade 8 pixels at a time by specified value.
> // NOTE vqrdmulh.s16 q10, q10, d0[0] must use a scaler register from 0 to 8.
> // Rounding in vqrdmulh does +1 to high if high bit of low s16 is set.
>-void ARGBShadeRow_NEON(const uint8* src_argb,
>-                       uint8* dst_argb,
>+void ARGBShadeRow_NEON(const uint8_t* src_argb,
>+                       uint8_t* dst_argb,
>                        int width,
>-                       uint32 value) {
>+                       uint32_t value) {
>   asm volatile(
>       "dup        v0.4s, %w3                     \n"  // duplicate scale value.
>       "zip1       v0.8b, v0.8b, v0.8b            \n"  // v0.8b aarrggbb.
>@@ -2225,7 +2293,7 @@ void ARGBShadeRow_NEON(const uint8* src_argb,
> // Convert 8 ARGB pixels (64 bytes) to 8 Gray ARGB pixels
> // Similar to ARGBToYJ but stores ARGB.
> // C code is (15 * b + 75 * g + 38 * r + 64) >> 7;
>-void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
>+void ARGBGrayRow_NEON(const uint8_t* src_argb, uint8_t* dst_argb, int width) {
>   asm volatile(
>       "movi       v24.8b, #15                    \n"  // B * 0.11400 coefficient
>       "movi       v25.8b, #75                    \n"  // G * 0.58700 coefficient
>@@ -2253,7 +2321,7 @@ void ARGBGrayRow_NEON(const uint8* src_argb, uint8* dst_argb, int width) {
> //    g = (r * 45 + g * 88 + b * 22) >> 7
> //    r = (r * 50 + g * 98 + b * 24) >> 7
> 
>-void ARGBSepiaRow_NEON(uint8* dst_argb, int width) {
>+void ARGBSepiaRow_NEON(uint8_t* dst_argb, int width) {
>   asm volatile(
>       "movi       v20.8b, #17                    \n"  // BB coefficient
>       "movi       v21.8b, #68                    \n"  // BG coefficient
>@@ -2291,9 +2359,9 @@ void ARGBSepiaRow_NEON(uint8* dst_argb, int width) {
> // Tranform 8 ARGB pixels (32 bytes) with color matrix.
> // TODO(fbarchard): Was same as Sepia except matrix is provided.  This function
> // needs to saturate.  Consider doing a non-saturating version.
>-void ARGBColorMatrixRow_NEON(const uint8* src_argb,
>-                             uint8* dst_argb,
>-                             const int8* matrix_argb,
>+void ARGBColorMatrixRow_NEON(const uint8_t* src_argb,
>+                             uint8_t* dst_argb,
>+                             const int8_t* matrix_argb,
>                              int width) {
>   asm volatile(
>       "ld1        {v2.16b}, [%3]                 \n"  // load 3 ARGB vectors.
>@@ -2351,9 +2419,9 @@ void ARGBColorMatrixRow_NEON(const uint8* src_argb,
> 
> // TODO(fbarchard): fix vqshrun in ARGBMultiplyRow_NEON and reenable.
> // Multiply 2 rows of ARGB pixels together, 8 pixels at a time.
>-void ARGBMultiplyRow_NEON(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBMultiplyRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2380,9 +2448,9 @@ void ARGBMultiplyRow_NEON(const uint8* src_argb0,
> }
> 
> // Add 2 rows of ARGB pixels together, 8 pixels at a time.
>-void ARGBAddRow_NEON(const uint8* src_argb0,
>-                     const uint8* src_argb1,
>-                     uint8* dst_argb,
>+void ARGBAddRow_NEON(const uint8_t* src_argb0,
>+                     const uint8_t* src_argb1,
>+                     uint8_t* dst_argb,
>                      int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2405,9 +2473,9 @@ void ARGBAddRow_NEON(const uint8* src_argb0,
> }
> 
> // Subtract 2 rows of ARGB pixels, 8 pixels at a time.
>-void ARGBSubtractRow_NEON(const uint8* src_argb0,
>-                          const uint8* src_argb1,
>-                          uint8* dst_argb,
>+void ARGBSubtractRow_NEON(const uint8_t* src_argb0,
>+                          const uint8_t* src_argb1,
>+                          uint8_t* dst_argb,
>                           int width) {
>   asm volatile(
>       // 8 pixel loop.
>@@ -2434,9 +2502,9 @@ void ARGBSubtractRow_NEON(const uint8* src_argb0,
> // R = Sobel
> // G = Sobel
> // B = Sobel
>-void SobelRow_NEON(const uint8* src_sobelx,
>-                   const uint8* src_sobely,
>-                   uint8* dst_argb,
>+void SobelRow_NEON(const uint8_t* src_sobelx,
>+                   const uint8_t* src_sobely,
>+                   uint8_t* dst_argb,
>                    int width) {
>   asm volatile(
>       "movi       v3.8b, #255                    \n"  // alpha
>@@ -2459,9 +2527,9 @@ void SobelRow_NEON(const uint8* src_sobelx,
> }
> 
> // Adds Sobel X and Sobel Y and stores Sobel into plane.
>-void SobelToPlaneRow_NEON(const uint8* src_sobelx,
>-                          const uint8* src_sobely,
>-                          uint8* dst_y,
>+void SobelToPlaneRow_NEON(const uint8_t* src_sobelx,
>+                          const uint8_t* src_sobely,
>+                          uint8_t* dst_y,
>                           int width) {
>   asm volatile(
>       // 16 pixel loop.
>@@ -2485,9 +2553,9 @@ void SobelToPlaneRow_NEON(const uint8* src_sobelx,
> // R = Sobel X
> // G = Sobel
> // B = Sobel Y
>-void SobelXYRow_NEON(const uint8* src_sobelx,
>-                     const uint8* src_sobely,
>-                     uint8* dst_argb,
>+void SobelXYRow_NEON(const uint8_t* src_sobelx,
>+                     const uint8_t* src_sobely,
>+                     uint8_t* dst_argb,
>                      int width) {
>   asm volatile(
>       "movi       v3.8b, #255                    \n"  // alpha
>@@ -2511,10 +2579,10 @@ void SobelXYRow_NEON(const uint8* src_sobelx,
> // -1  0  1
> // -2  0  2
> // -1  0  1
>-void SobelXRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    const uint8* src_y2,
>-                    uint8* dst_sobelx,
>+void SobelXRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    const uint8_t* src_y2,
>+                    uint8_t* dst_sobelx,
>                     int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -2550,9 +2618,9 @@ void SobelXRow_NEON(const uint8* src_y0,
> // -1 -2 -1
> //  0  0  0
> //  1  2  1
>-void SobelYRow_NEON(const uint8* src_y0,
>-                    const uint8* src_y1,
>-                    uint8* dst_sobely,
>+void SobelYRow_NEON(const uint8_t* src_y0,
>+                    const uint8_t* src_y1,
>+                    uint8_t* dst_sobely,
>                     int width) {
>   asm volatile(
>       "1:                                        \n"
>@@ -2584,7 +2652,10 @@ void SobelYRow_NEON(const uint8* src_y0,
> }
> 
> // Caveat - rounds float to half float whereas scaling version truncates.
>-void HalfFloat1Row_NEON(const uint16* src, uint16* dst, float, int width) {
>+void HalfFloat1Row_NEON(const uint16_t* src,
>+                        uint16_t* dst,
>+                        float /*unused*/,
>+                        int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld1        {v1.16b}, [%0], #16            \n"  // load 8 shorts
>@@ -2604,7 +2675,10 @@ void HalfFloat1Row_NEON(const uint16* src, uint16* dst, float, int width) {
>       : "cc", "memory", "v1", "v2", "v3");
> }
> 
>-void HalfFloatRow_NEON(const uint16* src, uint16* dst, float scale, int width) {
>+void HalfFloatRow_NEON(const uint16_t* src,
>+                       uint16_t* dst,
>+                       float scale,
>+                       int width) {
>   asm volatile(
>       "1:                                        \n"
>       "ld1        {v1.16b}, [%0], #16            \n"  // load 8 shorts
>@@ -2626,6 +2700,30 @@ void HalfFloatRow_NEON(const uint16* src, uint16* dst, float scale, int width) {
>       : "cc", "memory", "v1", "v2", "v3");
> }
> 
>+void ByteToFloatRow_NEON(const uint8_t* src,
>+                         float* dst,
>+                         float scale,
>+                         int width) {
>+  asm volatile(
>+      "1:                                        \n"
>+      "ld1        {v1.8b}, [%0], #8              \n"  // load 8 bytes
>+      "subs       %w2, %w2, #8                   \n"  // 8 pixels per loop
>+      "uxtl       v1.8h, v1.8b                   \n"  // 8 shorts
>+      "uxtl       v2.4s, v1.4h                   \n"  // 8 ints
>+      "uxtl2      v3.4s, v1.8h                   \n"
>+      "scvtf      v2.4s, v2.4s                   \n"  // 8 floats
>+      "scvtf      v3.4s, v3.4s                   \n"
>+      "fmul       v2.4s, v2.4s, %3.s[0]          \n"  // scale
>+      "fmul       v3.4s, v3.4s, %3.s[0]          \n"
>+      "st1        {v2.16b, v3.16b}, [%1], #32    \n"  // store 8 floats
>+      "b.gt       1b                             \n"
>+      : "+r"(src),   // %0
>+        "+r"(dst),   // %1
>+        "+r"(width)  // %2
>+      : "w"(scale)   // %3
>+      : "cc", "memory", "v1", "v2", "v3");
>+}
>+
> float ScaleMaxSamples_NEON(const float* src,
>                            float* dst,
>                            float scale,
>@@ -2702,12 +2800,12 @@ void ScaleSamples_NEON(const float* src, float* dst, float scale, int width) {
> }
> 
> // filter 5 rows with 1, 4, 6, 4, 1 coefficients to produce 1 row.
>-void GaussCol_NEON(const uint16* src0,
>-                   const uint16* src1,
>-                   const uint16* src2,
>-                   const uint16* src3,
>-                   const uint16* src4,
>-                   uint32* dst,
>+void GaussCol_NEON(const uint16_t* src0,
>+                   const uint16_t* src1,
>+                   const uint16_t* src2,
>+                   const uint16_t* src3,
>+                   const uint16_t* src4,
>+                   uint32_t* dst,
>                    int width) {
>   asm volatile(
>       "movi       v6.8h, #4                      \n"  // constant 4
>@@ -2742,10 +2840,10 @@ void GaussCol_NEON(const uint16* src0,
> }
> 
> // filter 5 rows with 1, 4, 6, 4, 1 coefficients to produce 1 row.
>-void GaussRow_NEON(const uint32* src, uint16* dst, int width) {
>-  const uint32* src1 = src + 1;
>-  const uint32* src2 = src + 2;
>-  const uint32* src3 = src + 3;
>+void GaussRow_NEON(const uint32_t* src, uint16_t* dst, int width) {
>+  const uint32_t* src1 = src + 1;
>+  const uint32_t* src2 = src + 2;
>+  const uint32_t* src3 = src + 3;
>   asm volatile(
>       "movi       v6.4s, #4                      \n"  // constant 4
>       "movi       v7.4s, #6                      \n"  // constant 6
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_win.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_win.cc
>index 03a7e9506dad536e1ba3d76297eee4ed31cfdab7..5500d7f5a64e0008dcf7c61e70d345d6779c6502 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_win.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/row_win.cc
>@@ -28,27 +28,27 @@ extern "C" {
> #if defined(_M_X64)
> 
> // Read 4 UV from 422, upsample to 8 UV.
>-#define READYUV422                                      \
>-  xmm0 = _mm_cvtsi32_si128(*(uint32*)u_buf);            \
>-  xmm1 = _mm_cvtsi32_si128(*(uint32*)(u_buf + offset)); \
>-  xmm0 = _mm_unpacklo_epi8(xmm0, xmm1);                 \
>-  xmm0 = _mm_unpacklo_epi16(xmm0, xmm0);                \
>-  u_buf += 4;                                           \
>-  xmm4 = _mm_loadl_epi64((__m128i*)y_buf);              \
>-  xmm4 = _mm_unpacklo_epi8(xmm4, xmm4);                 \
>+#define READYUV422                                        \
>+  xmm0 = _mm_cvtsi32_si128(*(uint32_t*)u_buf);            \
>+  xmm1 = _mm_cvtsi32_si128(*(uint32_t*)(u_buf + offset)); \
>+  xmm0 = _mm_unpacklo_epi8(xmm0, xmm1);                   \
>+  xmm0 = _mm_unpacklo_epi16(xmm0, xmm0);                  \
>+  u_buf += 4;                                             \
>+  xmm4 = _mm_loadl_epi64((__m128i*)y_buf);                \
>+  xmm4 = _mm_unpacklo_epi8(xmm4, xmm4);                   \
>   y_buf += 8;
> 
> // Read 4 UV from 422, upsample to 8 UV.  With 8 Alpha.
>-#define READYUVA422                                     \
>-  xmm0 = _mm_cvtsi32_si128(*(uint32*)u_buf);            \
>-  xmm1 = _mm_cvtsi32_si128(*(uint32*)(u_buf + offset)); \
>-  xmm0 = _mm_unpacklo_epi8(xmm0, xmm1);                 \
>-  xmm0 = _mm_unpacklo_epi16(xmm0, xmm0);                \
>-  u_buf += 4;                                           \
>-  xmm4 = _mm_loadl_epi64((__m128i*)y_buf);              \
>-  xmm4 = _mm_unpacklo_epi8(xmm4, xmm4);                 \
>-  y_buf += 8;                                           \
>-  xmm5 = _mm_loadl_epi64((__m128i*)a_buf);              \
>+#define READYUVA422                                       \
>+  xmm0 = _mm_cvtsi32_si128(*(uint32_t*)u_buf);            \
>+  xmm1 = _mm_cvtsi32_si128(*(uint32_t*)(u_buf + offset)); \
>+  xmm0 = _mm_unpacklo_epi8(xmm0, xmm1);                   \
>+  xmm0 = _mm_unpacklo_epi16(xmm0, xmm0);                  \
>+  u_buf += 4;                                             \
>+  xmm4 = _mm_loadl_epi64((__m128i*)y_buf);                \
>+  xmm4 = _mm_unpacklo_epi8(xmm4, xmm4);                   \
>+  y_buf += 8;                                             \
>+  xmm5 = _mm_loadl_epi64((__m128i*)a_buf);                \
>   a_buf += 8;
> 
> // Convert 8 pixels: 8 UV and 8 Y.
>@@ -84,15 +84,15 @@ extern "C" {
>   dst_argb += 32;
> 
> #if defined(HAS_I422TOARGBROW_SSSE3)
>-void I422ToARGBRow_SSSE3(const uint8* y_buf,
>-                         const uint8* u_buf,
>-                         const uint8* v_buf,
>-                         uint8* dst_argb,
>+void I422ToARGBRow_SSSE3(const uint8_t* y_buf,
>+                         const uint8_t* u_buf,
>+                         const uint8_t* v_buf,
>+                         uint8_t* dst_argb,
>                          const struct YuvConstants* yuvconstants,
>                          int width) {
>   __m128i xmm0, xmm1, xmm2, xmm4;
>   const __m128i xmm5 = _mm_set1_epi8(-1);
>-  const ptrdiff_t offset = (uint8*)v_buf - (uint8*)u_buf;
>+  const ptrdiff_t offset = (uint8_t*)v_buf - (uint8_t*)u_buf;
>   while (width > 0) {
>     READYUV422
>     YUVTORGB(yuvconstants)
>@@ -103,15 +103,15 @@ void I422ToARGBRow_SSSE3(const uint8* y_buf,
> #endif
> 
> #if defined(HAS_I422ALPHATOARGBROW_SSSE3)
>-void I422AlphaToARGBRow_SSSE3(const uint8* y_buf,
>-                              const uint8* u_buf,
>-                              const uint8* v_buf,
>-                              const uint8* a_buf,
>-                              uint8* dst_argb,
>+void I422AlphaToARGBRow_SSSE3(const uint8_t* y_buf,
>+                              const uint8_t* u_buf,
>+                              const uint8_t* v_buf,
>+                              const uint8_t* a_buf,
>+                              uint8_t* dst_argb,
>                               const struct YuvConstants* yuvconstants,
>                               int width) {
>   __m128i xmm0, xmm1, xmm2, xmm4, xmm5;
>-  const ptrdiff_t offset = (uint8*)v_buf - (uint8*)u_buf;
>+  const ptrdiff_t offset = (uint8_t*)v_buf - (uint8_t*)u_buf;
>   while (width > 0) {
>     READYUVA422
>     YUVTORGB(yuvconstants)
>@@ -255,8 +255,8 @@ static const lvec8 kShuffleNV21 = {
> };
> 
> // Duplicates gray value 3 times and fills in alpha opaque.
>-__declspec(naked) void J400ToARGBRow_SSE2(const uint8* src_y,
>-                                          uint8* dst_argb,
>+__declspec(naked) void J400ToARGBRow_SSE2(const uint8_t* src_y,
>+                                          uint8_t* dst_argb,
>                                           int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_y
>@@ -285,8 +285,8 @@ __declspec(naked) void J400ToARGBRow_SSE2(const uint8* src_y,
> 
> #ifdef HAS_J400TOARGBROW_AVX2
> // Duplicates gray value 3 times and fills in alpha opaque.
>-__declspec(naked) void J400ToARGBRow_AVX2(const uint8* src_y,
>-                                          uint8* dst_argb,
>+__declspec(naked) void J400ToARGBRow_AVX2(const uint8_t* src_y,
>+                                          uint8_t* dst_argb,
>                                           int width) {
>   __asm {
>     mov         eax, [esp + 4]  // src_y
>@@ -316,8 +316,8 @@ __declspec(naked) void J400ToARGBRow_AVX2(const uint8* src_y,
> }
> #endif  // HAS_J400TOARGBROW_AVX2
> 
>-__declspec(naked) void RGB24ToARGBRow_SSSE3(const uint8* src_rgb24,
>-                                            uint8* dst_argb,
>+__declspec(naked) void RGB24ToARGBRow_SSSE3(const uint8_t* src_rgb24,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_rgb24
>@@ -355,8 +355,8 @@ __declspec(naked) void RGB24ToARGBRow_SSSE3(const uint8* src_rgb24,
>   }
> }
> 
>-__declspec(naked) void RAWToARGBRow_SSSE3(const uint8* src_raw,
>-                                          uint8* dst_argb,
>+__declspec(naked) void RAWToARGBRow_SSSE3(const uint8_t* src_raw,
>+                                          uint8_t* dst_argb,
>                                           int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_raw
>@@ -394,8 +394,8 @@ __declspec(naked) void RAWToARGBRow_SSSE3(const uint8* src_raw,
>   }
> }
> 
>-__declspec(naked) void RAWToRGB24Row_SSSE3(const uint8* src_raw,
>-                                           uint8* dst_rgb24,
>+__declspec(naked) void RAWToRGB24Row_SSSE3(const uint8_t* src_raw,
>+                                           uint8_t* dst_rgb24,
>                                            int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_raw
>@@ -430,8 +430,8 @@ __declspec(naked) void RAWToRGB24Row_SSSE3(const uint8* src_raw,
> // v * (256 + 8)
> // G shift of 5 is incorporated, so shift is 5 + 8 and 5 + 3
> // 20 instructions.
>-__declspec(naked) void RGB565ToARGBRow_SSE2(const uint8* src_rgb565,
>-                                            uint8* dst_argb,
>+__declspec(naked) void RGB565ToARGBRow_SSE2(const uint8_t* src_rgb565,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     mov       eax, 0x01080108  // generate multiplier to repeat 5 bits
>@@ -486,8 +486,8 @@ __declspec(naked) void RGB565ToARGBRow_SSE2(const uint8* src_rgb565,
> // v * 256 + v * 8
> // v * (256 + 8)
> // G shift of 5 is incorporated, so shift is 5 + 8 and 5 + 3
>-__declspec(naked) void RGB565ToARGBRow_AVX2(const uint8* src_rgb565,
>-                                            uint8* dst_argb,
>+__declspec(naked) void RGB565ToARGBRow_AVX2(const uint8_t* src_rgb565,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     mov        eax, 0x01080108  // generate multiplier to repeat 5 bits
>@@ -537,8 +537,8 @@ __declspec(naked) void RGB565ToARGBRow_AVX2(const uint8* src_rgb565,
> #endif  // HAS_RGB565TOARGBROW_AVX2
> 
> #ifdef HAS_ARGB1555TOARGBROW_AVX2
>-__declspec(naked) void ARGB1555ToARGBRow_AVX2(const uint8* src_argb1555,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGB1555ToARGBRow_AVX2(const uint8_t* src_argb1555,
>+                                              uint8_t* dst_argb,
>                                               int width) {
>   __asm {
>     mov        eax, 0x01080108  // generate multiplier to repeat 5 bits
>@@ -589,8 +589,8 @@ __declspec(naked) void ARGB1555ToARGBRow_AVX2(const uint8* src_argb1555,
> #endif  // HAS_ARGB1555TOARGBROW_AVX2
> 
> #ifdef HAS_ARGB4444TOARGBROW_AVX2
>-__declspec(naked) void ARGB4444ToARGBRow_AVX2(const uint8* src_argb4444,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGB4444ToARGBRow_AVX2(const uint8_t* src_argb4444,
>+                                              uint8_t* dst_argb,
>                                               int width) {
>   __asm {
>     mov       eax,  0x0f0f0f0f  // generate mask 0x0f0f0f0f
>@@ -627,8 +627,8 @@ __declspec(naked) void ARGB4444ToARGBRow_AVX2(const uint8* src_argb4444,
> #endif  // HAS_ARGB4444TOARGBROW_AVX2
> 
> // 24 instructions
>-__declspec(naked) void ARGB1555ToARGBRow_SSE2(const uint8* src_argb1555,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGB1555ToARGBRow_SSE2(const uint8_t* src_argb1555,
>+                                              uint8_t* dst_argb,
>                                               int width) {
>   __asm {
>     mov       eax, 0x01080108  // generate multiplier to repeat 5 bits
>@@ -680,8 +680,8 @@ __declspec(naked) void ARGB1555ToARGBRow_SSE2(const uint8* src_argb1555,
> }
> 
> // 18 instructions.
>-__declspec(naked) void ARGB4444ToARGBRow_SSE2(const uint8* src_argb4444,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGB4444ToARGBRow_SSE2(const uint8_t* src_argb4444,
>+                                              uint8_t* dst_argb,
>                                               int width) {
>   __asm {
>     mov       eax, 0x0f0f0f0f  // generate mask 0x0f0f0f0f
>@@ -718,8 +718,8 @@ __declspec(naked) void ARGB4444ToARGBRow_SSE2(const uint8* src_argb4444,
>   }
> }
> 
>-__declspec(naked) void ARGBToRGB24Row_SSSE3(const uint8* src_argb,
>-                                            uint8* dst_rgb,
>+__declspec(naked) void ARGBToRGB24Row_SSSE3(const uint8_t* src_argb,
>+                                            uint8_t* dst_rgb,
>                                             int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_argb
>@@ -757,8 +757,8 @@ __declspec(naked) void ARGBToRGB24Row_SSSE3(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ARGBToRAWRow_SSSE3(const uint8* src_argb,
>-                                          uint8* dst_rgb,
>+__declspec(naked) void ARGBToRAWRow_SSSE3(const uint8_t* src_argb,
>+                                          uint8_t* dst_rgb,
>                                           int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_argb
>@@ -796,8 +796,8 @@ __declspec(naked) void ARGBToRAWRow_SSSE3(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ARGBToRGB565Row_SSE2(const uint8* src_argb,
>-                                            uint8* dst_rgb,
>+__declspec(naked) void ARGBToRGB565Row_SSE2(const uint8_t* src_argb,
>+                                            uint8_t* dst_rgb,
>                                             int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_argb
>@@ -834,9 +834,9 @@ __declspec(naked) void ARGBToRGB565Row_SSE2(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb,
>-                                                  uint8* dst_rgb,
>-                                                  const uint32 dither4,
>+__declspec(naked) void ARGBToRGB565DitherRow_SSE2(const uint8_t* src_argb,
>+                                                  uint8_t* dst_rgb,
>+                                                  const uint32_t dither4,
>                                                   int width) {
>   __asm {
> 
>@@ -881,9 +881,9 @@ __declspec(naked) void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb,
> }
> 
> #ifdef HAS_ARGBTORGB565DITHERROW_AVX2
>-__declspec(naked) void ARGBToRGB565DitherRow_AVX2(const uint8* src_argb,
>-                                                  uint8* dst_rgb,
>-                                                  const uint32 dither4,
>+__declspec(naked) void ARGBToRGB565DitherRow_AVX2(const uint8_t* src_argb,
>+                                                  uint8_t* dst_rgb,
>+                                                  const uint32_t dither4,
>                                                   int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -925,8 +925,8 @@ __declspec(naked) void ARGBToRGB565DitherRow_AVX2(const uint8* src_argb,
> #endif  // HAS_ARGBTORGB565DITHERROW_AVX2
> 
> // TODO(fbarchard): Improve sign extension/packing.
>-__declspec(naked) void ARGBToARGB1555Row_SSE2(const uint8* src_argb,
>-                                              uint8* dst_rgb,
>+__declspec(naked) void ARGBToARGB1555Row_SSE2(const uint8_t* src_argb,
>+                                              uint8_t* dst_rgb,
>                                               int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_argb
>@@ -967,8 +967,8 @@ __declspec(naked) void ARGBToARGB1555Row_SSE2(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ARGBToARGB4444Row_SSE2(const uint8* src_argb,
>-                                              uint8* dst_rgb,
>+__declspec(naked) void ARGBToARGB4444Row_SSE2(const uint8_t* src_argb,
>+                                              uint8_t* dst_rgb,
>                                               int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src_argb
>@@ -998,8 +998,8 @@ __declspec(naked) void ARGBToARGB4444Row_SSE2(const uint8* src_argb,
> }
> 
> #ifdef HAS_ARGBTORGB565ROW_AVX2
>-__declspec(naked) void ARGBToRGB565Row_AVX2(const uint8* src_argb,
>-                                            uint8* dst_rgb,
>+__declspec(naked) void ARGBToRGB565Row_AVX2(const uint8_t* src_argb,
>+                                            uint8_t* dst_rgb,
>                                             int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -1036,8 +1036,8 @@ __declspec(naked) void ARGBToRGB565Row_AVX2(const uint8* src_argb,
> #endif  // HAS_ARGBTORGB565ROW_AVX2
> 
> #ifdef HAS_ARGBTOARGB1555ROW_AVX2
>-__declspec(naked) void ARGBToARGB1555Row_AVX2(const uint8* src_argb,
>-                                              uint8* dst_rgb,
>+__declspec(naked) void ARGBToARGB1555Row_AVX2(const uint8_t* src_argb,
>+                                              uint8_t* dst_rgb,
>                                               int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -1077,8 +1077,8 @@ __declspec(naked) void ARGBToARGB1555Row_AVX2(const uint8* src_argb,
> #endif  // HAS_ARGBTOARGB1555ROW_AVX2
> 
> #ifdef HAS_ARGBTOARGB4444ROW_AVX2
>-__declspec(naked) void ARGBToARGB4444Row_AVX2(const uint8* src_argb,
>-                                              uint8* dst_rgb,
>+__declspec(naked) void ARGBToARGB4444Row_AVX2(const uint8_t* src_argb,
>+                                              uint8_t* dst_rgb,
>                                               int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -1109,8 +1109,8 @@ __declspec(naked) void ARGBToARGB4444Row_AVX2(const uint8* src_argb,
> #endif  // HAS_ARGBTOARGB4444ROW_AVX2
> 
> // Convert 16 ARGB pixels (64 bytes) to 16 Y values.
>-__declspec(naked) void ARGBToYRow_SSSE3(const uint8* src_argb,
>-                                        uint8* dst_y,
>+__declspec(naked) void ARGBToYRow_SSSE3(const uint8_t* src_argb,
>+                                        uint8_t* dst_y,
>                                         int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1145,8 +1145,8 @@ __declspec(naked) void ARGBToYRow_SSSE3(const uint8* src_argb,
> 
> // Convert 16 ARGB pixels (64 bytes) to 16 YJ values.
> // Same as ARGBToYRow but different coefficients, no add 16, but do rounding.
>-__declspec(naked) void ARGBToYJRow_SSSE3(const uint8* src_argb,
>-                                         uint8* dst_y,
>+__declspec(naked) void ARGBToYJRow_SSSE3(const uint8_t* src_argb,
>+                                         uint8_t* dst_y,
>                                          int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1185,8 +1185,8 @@ __declspec(naked) void ARGBToYJRow_SSSE3(const uint8* src_argb,
> static const lvec32 kPermdARGBToY_AVX = {0, 4, 1, 5, 2, 6, 3, 7};
> 
> // Convert 32 ARGB pixels (128 bytes) to 32 Y values.
>-__declspec(naked) void ARGBToYRow_AVX2(const uint8* src_argb,
>-                                       uint8* dst_y,
>+__declspec(naked) void ARGBToYRow_AVX2(const uint8_t* src_argb,
>+                                       uint8_t* dst_y,
>                                        int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1225,8 +1225,8 @@ __declspec(naked) void ARGBToYRow_AVX2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBTOYJROW_AVX2
> // Convert 32 ARGB pixels (128 bytes) to 32 Y values.
>-__declspec(naked) void ARGBToYJRow_AVX2(const uint8* src_argb,
>-                                        uint8* dst_y,
>+__declspec(naked) void ARGBToYJRow_AVX2(const uint8_t* src_argb,
>+                                        uint8_t* dst_y,
>                                         int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1265,8 +1265,8 @@ __declspec(naked) void ARGBToYJRow_AVX2(const uint8* src_argb,
> }
> #endif  //  HAS_ARGBTOYJROW_AVX2
> 
>-__declspec(naked) void BGRAToYRow_SSSE3(const uint8* src_argb,
>-                                        uint8* dst_y,
>+__declspec(naked) void BGRAToYRow_SSSE3(const uint8_t* src_argb,
>+                                        uint8_t* dst_y,
>                                         int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1299,8 +1299,8 @@ __declspec(naked) void BGRAToYRow_SSSE3(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ABGRToYRow_SSSE3(const uint8* src_argb,
>-                                        uint8* dst_y,
>+__declspec(naked) void ABGRToYRow_SSSE3(const uint8_t* src_argb,
>+                                        uint8_t* dst_y,
>                                         int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1333,8 +1333,8 @@ __declspec(naked) void ABGRToYRow_SSSE3(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void RGBAToYRow_SSSE3(const uint8* src_argb,
>-                                        uint8* dst_y,
>+__declspec(naked) void RGBAToYRow_SSSE3(const uint8_t* src_argb,
>+                                        uint8_t* dst_y,
>                                         int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -1367,10 +1367,10 @@ __declspec(naked) void RGBAToYRow_SSSE3(const uint8* src_argb,
>   }
> }
> 
>-__declspec(naked) void ARGBToUVRow_SSSE3(const uint8* src_argb0,
>+__declspec(naked) void ARGBToUVRow_SSSE3(const uint8_t* src_argb0,
>                                          int src_stride_argb,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push       esi
>@@ -1439,10 +1439,10 @@ __declspec(naked) void ARGBToUVRow_SSSE3(const uint8* src_argb0,
>   }
> }
> 
>-__declspec(naked) void ARGBToUVJRow_SSSE3(const uint8* src_argb0,
>+__declspec(naked) void ARGBToUVJRow_SSSE3(const uint8_t* src_argb0,
>                                           int src_stride_argb,
>-                                          uint8* dst_u,
>-                                          uint8* dst_v,
>+                                          uint8_t* dst_u,
>+                                          uint8_t* dst_v,
>                                           int width) {
>   __asm {
>     push       esi
>@@ -1513,10 +1513,10 @@ __declspec(naked) void ARGBToUVJRow_SSSE3(const uint8* src_argb0,
> }
> 
> #ifdef HAS_ARGBTOUVROW_AVX2
>-__declspec(naked) void ARGBToUVRow_AVX2(const uint8* src_argb0,
>+__declspec(naked) void ARGBToUVRow_AVX2(const uint8_t* src_argb0,
>                                         int src_stride_argb,
>-                                        uint8* dst_u,
>-                                        uint8* dst_v,
>+                                        uint8_t* dst_u,
>+                                        uint8_t* dst_v,
>                                         int width) {
>   __asm {
>     push       esi
>@@ -1581,10 +1581,10 @@ __declspec(naked) void ARGBToUVRow_AVX2(const uint8* src_argb0,
> #endif  // HAS_ARGBTOUVROW_AVX2
> 
> #ifdef HAS_ARGBTOUVJROW_AVX2
>-__declspec(naked) void ARGBToUVJRow_AVX2(const uint8* src_argb0,
>+__declspec(naked) void ARGBToUVJRow_AVX2(const uint8_t* src_argb0,
>                                          int src_stride_argb,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push       esi
>@@ -1649,9 +1649,9 @@ __declspec(naked) void ARGBToUVJRow_AVX2(const uint8* src_argb0,
> }
> #endif  // HAS_ARGBTOUVJROW_AVX2
> 
>-__declspec(naked) void ARGBToUV444Row_SSSE3(const uint8* src_argb0,
>-                                            uint8* dst_u,
>-                                            uint8* dst_v,
>+__declspec(naked) void ARGBToUV444Row_SSSE3(const uint8_t* src_argb0,
>+                                            uint8_t* dst_u,
>+                                            uint8_t* dst_v,
>                                             int width) {
>   __asm {
>     push       edi
>@@ -1707,10 +1707,10 @@ __declspec(naked) void ARGBToUV444Row_SSSE3(const uint8* src_argb0,
>   }
> }
> 
>-__declspec(naked) void BGRAToUVRow_SSSE3(const uint8* src_argb0,
>+__declspec(naked) void BGRAToUVRow_SSSE3(const uint8_t* src_argb0,
>                                          int src_stride_argb,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push       esi
>@@ -1779,10 +1779,10 @@ __declspec(naked) void BGRAToUVRow_SSSE3(const uint8* src_argb0,
>   }
> }
> 
>-__declspec(naked) void ABGRToUVRow_SSSE3(const uint8* src_argb0,
>+__declspec(naked) void ABGRToUVRow_SSSE3(const uint8_t* src_argb0,
>                                          int src_stride_argb,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push       esi
>@@ -1851,10 +1851,10 @@ __declspec(naked) void ABGRToUVRow_SSSE3(const uint8* src_argb0,
>   }
> }
> 
>-__declspec(naked) void RGBAToUVRow_SSSE3(const uint8* src_argb0,
>+__declspec(naked) void RGBAToUVRow_SSSE3(const uint8_t* src_argb0,
>                                          int src_stride_argb,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push       esi
>@@ -2065,10 +2065,10 @@ __declspec(naked) void RGBAToUVRow_SSSE3(const uint8* src_argb0,
> // 16 pixels
> // 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
> __declspec(naked) void I422ToARGBRow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2105,11 +2105,11 @@ __declspec(naked) void I422ToARGBRow_AVX2(
> // 16 pixels
> // 8 UV values upsampled to 16 UV, mixed with 16 Y and 16 A producing 16 ARGB.
> __declspec(naked) void I422AlphaToARGBRow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    const uint8* a_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    const uint8_t* a_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2148,10 +2148,10 @@ __declspec(naked) void I422AlphaToARGBRow_AVX2(
> // 16 pixels
> // 16 UV values with 16 Y producing 16 ARGB (64 bytes).
> __declspec(naked) void I444ToARGBRow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2187,9 +2187,9 @@ __declspec(naked) void I444ToARGBRow_AVX2(
> // 16 pixels.
> // 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
> __declspec(naked) void NV12ToARGBRow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* uv_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* uv_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2222,9 +2222,9 @@ __declspec(naked) void NV12ToARGBRow_AVX2(
> // 16 pixels.
> // 8 VU values upsampled to 16 UV, mixed with 16 Y producing 16 ARGB (64 bytes).
> __declspec(naked) void NV21ToARGBRow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* vu_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* vu_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2257,8 +2257,8 @@ __declspec(naked) void NV21ToARGBRow_AVX2(
> // 16 pixels.
> // 8 YUY2 values with 16 Y and 8 UV producing 16 ARGB (64 bytes).
> __declspec(naked) void YUY2ToARGBRow_AVX2(
>-    const uint8* src_yuy2,
>-    uint8* dst_argb,
>+    const uint8_t* src_yuy2,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2288,8 +2288,8 @@ __declspec(naked) void YUY2ToARGBRow_AVX2(
> // 16 pixels.
> // 8 UYVY values with 16 Y and 8 UV producing 16 ARGB (64 bytes).
> __declspec(naked) void UYVYToARGBRow_AVX2(
>-    const uint8* src_uyvy,
>-    uint8* dst_argb,
>+    const uint8_t* src_uyvy,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2319,10 +2319,10 @@ __declspec(naked) void UYVYToARGBRow_AVX2(
> // 16 pixels
> // 8 UV values upsampled to 16 UV, mixed with 16 Y producing 16 RGBA (64 bytes).
> __declspec(naked) void I422ToRGBARow_AVX2(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2551,10 +2551,10 @@ __declspec(naked) void I422ToRGBARow_AVX2(
> // 8 pixels.
> // 8 UV values, mixed with 8 Y producing 8 ARGB (32 bytes).
> __declspec(naked) void I444ToARGBRow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2588,10 +2588,10 @@ __declspec(naked) void I444ToARGBRow_SSSE3(
> // 8 pixels.
> // 4 UV values upsampled to 8 UV, mixed with 8 Y producing 8 RGB24 (24 bytes).
> __declspec(naked) void I422ToRGB24Row_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_rgb24,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_rgb24,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2626,10 +2626,10 @@ __declspec(naked) void I422ToRGB24Row_SSSE3(
> // 8 pixels
> // 4 UV values upsampled to 8 UV, mixed with 8 Y producing 8 RGB565 (16 bytes).
> __declspec(naked) void I422ToRGB565Row_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* rgb565_buf,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* rgb565_buf,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2669,10 +2669,10 @@ __declspec(naked) void I422ToRGB565Row_SSSE3(
> // 8 pixels.
> // 4 UV values upsampled to 8 UV, mixed with 8 Y producing 8 ARGB (32 bytes).
> __declspec(naked) void I422ToARGBRow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2706,11 +2706,11 @@ __declspec(naked) void I422ToARGBRow_SSSE3(
> // 8 pixels.
> // 4 UV values upsampled to 8 UV, mixed with 8 Y and 8 A producing 8 ARGB.
> __declspec(naked) void I422AlphaToARGBRow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    const uint8* a_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    const uint8_t* a_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2746,9 +2746,9 @@ __declspec(naked) void I422AlphaToARGBRow_SSSE3(
> // 8 pixels.
> // 4 UV values upsampled to 8 UV, mixed with 8 Y producing 8 ARGB (32 bytes).
> __declspec(naked) void NV12ToARGBRow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* uv_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* uv_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2778,9 +2778,9 @@ __declspec(naked) void NV12ToARGBRow_SSSE3(
> // 8 pixels.
> // 4 UV values upsampled to 8 UV, mixed with 8 Y producing 8 ARGB (32 bytes).
> __declspec(naked) void NV21ToARGBRow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* vu_buf,
>-    uint8* dst_argb,
>+    const uint8_t* y_buf,
>+    const uint8_t* vu_buf,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2810,8 +2810,8 @@ __declspec(naked) void NV21ToARGBRow_SSSE3(
> // 8 pixels.
> // 4 YUY2 values with 8 Y and 4 UV producing 8 ARGB (32 bytes).
> __declspec(naked) void YUY2ToARGBRow_SSSE3(
>-    const uint8* src_yuy2,
>-    uint8* dst_argb,
>+    const uint8_t* src_yuy2,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2838,8 +2838,8 @@ __declspec(naked) void YUY2ToARGBRow_SSSE3(
> // 8 pixels.
> // 4 UYVY values with 8 Y and 4 UV producing 8 ARGB (32 bytes).
> __declspec(naked) void UYVYToARGBRow_SSSE3(
>-    const uint8* src_uyvy,
>-    uint8* dst_argb,
>+    const uint8_t* src_uyvy,
>+    uint8_t* dst_argb,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2864,10 +2864,10 @@ __declspec(naked) void UYVYToARGBRow_SSSE3(
> }
> 
> __declspec(naked) void I422ToRGBARow_SSSE3(
>-    const uint8* y_buf,
>-    const uint8* u_buf,
>-    const uint8* v_buf,
>-    uint8* dst_rgba,
>+    const uint8_t* y_buf,
>+    const uint8_t* u_buf,
>+    const uint8_t* v_buf,
>+    uint8_t* dst_rgba,
>     const struct YuvConstants* yuvconstants,
>     int width) {
>   __asm {
>@@ -2900,8 +2900,8 @@ __declspec(naked) void I422ToRGBARow_SSSE3(
> 
> #ifdef HAS_I400TOARGBROW_SSE2
> // 8 pixels of Y converted to 8 pixels of ARGB (32 bytes).
>-__declspec(naked) void I400ToARGBRow_SSE2(const uint8* y_buf,
>-                                          uint8* rgb_buf,
>+__declspec(naked) void I400ToARGBRow_SSE2(const uint8_t* y_buf,
>+                                          uint8_t* rgb_buf,
>                                           int width) {
>   __asm {
>     mov        eax, 0x4a354a35  // 4a35 = 18997 = round(1.164 * 64 * 256)
>@@ -2947,8 +2947,8 @@ __declspec(naked) void I400ToARGBRow_SSE2(const uint8* y_buf,
> #ifdef HAS_I400TOARGBROW_AVX2
> // 16 pixels of Y converted to 16 pixels of ARGB (64 bytes).
> // note: vpunpcklbw mutates and vpackuswb unmutates.
>-__declspec(naked) void I400ToARGBRow_AVX2(const uint8* y_buf,
>-                                          uint8* rgb_buf,
>+__declspec(naked) void I400ToARGBRow_AVX2(const uint8_t* y_buf,
>+                                          uint8_t* rgb_buf,
>                                           int width) {
>   __asm {
>     mov        eax, 0x4a354a35  // 4a35 = 18997 = round(1.164 * 64 * 256)
>@@ -3000,8 +3000,8 @@ static const uvec8 kShuffleMirror = {15u, 14u, 13u, 12u, 11u, 10u, 9u, 8u,
>                                      7u,  6u,  5u,  4u,  3u,  2u,  1u, 0u};
> 
> // TODO(fbarchard): Replace lea with -16 offset.
>-__declspec(naked) void MirrorRow_SSSE3(const uint8* src,
>-                                       uint8* dst,
>+__declspec(naked) void MirrorRow_SSSE3(const uint8_t* src,
>+                                       uint8_t* dst,
>                                        int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src
>@@ -3022,7 +3022,9 @@ __declspec(naked) void MirrorRow_SSSE3(const uint8* src,
> #endif  // HAS_MIRRORROW_SSSE3
> 
> #ifdef HAS_MIRRORROW_AVX2
>-__declspec(naked) void MirrorRow_AVX2(const uint8* src, uint8* dst, int width) {
>+__declspec(naked) void MirrorRow_AVX2(const uint8_t* src,
>+                                      uint8_t* dst,
>+                                      int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src
>     mov       edx, [esp + 8]  // dst
>@@ -3048,9 +3050,9 @@ __declspec(naked) void MirrorRow_AVX2(const uint8* src, uint8* dst, int width) {
> static const uvec8 kShuffleMirrorUV = {14u, 12u, 10u, 8u, 6u, 4u, 2u, 0u,
>                                        15u, 13u, 11u, 9u, 7u, 5u, 3u, 1u};
> 
>-__declspec(naked) void MirrorUVRow_SSSE3(const uint8* src,
>-                                         uint8* dst_u,
>-                                         uint8* dst_v,
>+__declspec(naked) void MirrorUVRow_SSSE3(const uint8_t* src,
>+                                         uint8_t* dst_u,
>+                                         uint8_t* dst_v,
>                                          int width) {
>   __asm {
>     push      edi
>@@ -3079,8 +3081,8 @@ __declspec(naked) void MirrorUVRow_SSSE3(const uint8* src,
> #endif  // HAS_MIRRORUVROW_SSSE3
> 
> #ifdef HAS_ARGBMIRRORROW_SSE2
>-__declspec(naked) void ARGBMirrorRow_SSE2(const uint8* src,
>-                                          uint8* dst,
>+__declspec(naked) void ARGBMirrorRow_SSE2(const uint8_t* src,
>+                                          uint8_t* dst,
>                                           int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src
>@@ -3105,8 +3107,8 @@ __declspec(naked) void ARGBMirrorRow_SSE2(const uint8* src,
> // Shuffle table for reversing the bytes.
> static const ulvec32 kARGBShuffleMirror_AVX2 = {7u, 6u, 5u, 4u, 3u, 2u, 1u, 0u};
> 
>-__declspec(naked) void ARGBMirrorRow_AVX2(const uint8* src,
>-                                          uint8* dst,
>+__declspec(naked) void ARGBMirrorRow_AVX2(const uint8_t* src,
>+                                          uint8_t* dst,
>                                           int width) {
>   __asm {
>     mov       eax, [esp + 4]  // src
>@@ -3127,9 +3129,9 @@ __declspec(naked) void ARGBMirrorRow_AVX2(const uint8* src,
> #endif  // HAS_ARGBMIRRORROW_AVX2
> 
> #ifdef HAS_SPLITUVROW_SSE2
>-__declspec(naked) void SplitUVRow_SSE2(const uint8* src_uv,
>-                                       uint8* dst_u,
>-                                       uint8* dst_v,
>+__declspec(naked) void SplitUVRow_SSE2(const uint8_t* src_uv,
>+                                       uint8_t* dst_u,
>+                                       uint8_t* dst_v,
>                                        int width) {
>   __asm {
>     push       edi
>@@ -3167,9 +3169,9 @@ __declspec(naked) void SplitUVRow_SSE2(const uint8* src_uv,
> #endif  // HAS_SPLITUVROW_SSE2
> 
> #ifdef HAS_SPLITUVROW_AVX2
>-__declspec(naked) void SplitUVRow_AVX2(const uint8* src_uv,
>-                                       uint8* dst_u,
>-                                       uint8* dst_v,
>+__declspec(naked) void SplitUVRow_AVX2(const uint8_t* src_uv,
>+                                       uint8_t* dst_u,
>+                                       uint8_t* dst_v,
>                                        int width) {
>   __asm {
>     push       edi
>@@ -3207,9 +3209,9 @@ __declspec(naked) void SplitUVRow_AVX2(const uint8* src_uv,
> #endif  // HAS_SPLITUVROW_AVX2
> 
> #ifdef HAS_MERGEUVROW_SSE2
>-__declspec(naked) void MergeUVRow_SSE2(const uint8* src_u,
>-                                       const uint8* src_v,
>-                                       uint8* dst_uv,
>+__declspec(naked) void MergeUVRow_SSE2(const uint8_t* src_u,
>+                                       const uint8_t* src_v,
>+                                       uint8_t* dst_uv,
>                                        int width) {
>   __asm {
>     push       edi
>@@ -3239,9 +3241,9 @@ __declspec(naked) void MergeUVRow_SSE2(const uint8* src_u,
> #endif  //  HAS_MERGEUVROW_SSE2
> 
> #ifdef HAS_MERGEUVROW_AVX2
>-__declspec(naked) void MergeUVRow_AVX2(const uint8* src_u,
>-                                       const uint8* src_v,
>-                                       uint8* dst_uv,
>+__declspec(naked) void MergeUVRow_AVX2(const uint8_t* src_u,
>+                                       const uint8_t* src_v,
>+                                       uint8_t* dst_uv,
>                                        int width) {
>   __asm {
>     push       edi
>@@ -3273,12 +3275,14 @@ __declspec(naked) void MergeUVRow_AVX2(const uint8* src_u,
> #endif  //  HAS_MERGEUVROW_AVX2
> 
> #ifdef HAS_COPYROW_SSE2
>-// CopyRow copys 'count' bytes using a 16 byte load/store, 32 bytes at time.
>-__declspec(naked) void CopyRow_SSE2(const uint8* src, uint8* dst, int count) {
>+// CopyRow copys 'width' bytes using a 16 byte load/store, 32 bytes at time.
>+__declspec(naked) void CopyRow_SSE2(const uint8_t* src,
>+                                    uint8_t* dst,
>+                                    int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     test       eax, 15
>     jne        convertloopu
>     test       edx, 15
>@@ -3310,12 +3314,14 @@ __declspec(naked) void CopyRow_SSE2(const uint8* src, uint8* dst, int count) {
> #endif  // HAS_COPYROW_SSE2
> 
> #ifdef HAS_COPYROW_AVX
>-// CopyRow copys 'count' bytes using a 32 byte load/store, 64 bytes at time.
>-__declspec(naked) void CopyRow_AVX(const uint8* src, uint8* dst, int count) {
>+// CopyRow copys 'width' bytes using a 32 byte load/store, 64 bytes at time.
>+__declspec(naked) void CopyRow_AVX(const uint8_t* src,
>+                                   uint8_t* dst,
>+                                   int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
> 
>   convertloop:
>     vmovdqu    ymm0, [eax]
>@@ -3334,13 +3340,15 @@ __declspec(naked) void CopyRow_AVX(const uint8* src, uint8* dst, int count) {
> #endif  // HAS_COPYROW_AVX
> 
> // Multiple of 1.
>-__declspec(naked) void CopyRow_ERMS(const uint8* src, uint8* dst, int count) {
>+__declspec(naked) void CopyRow_ERMS(const uint8_t* src,
>+                                    uint8_t* dst,
>+                                    int width) {
>   __asm {
>     mov        eax, esi
>     mov        edx, edi
>     mov        esi, [esp + 4]  // src
>     mov        edi, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     rep movsb
>     mov        edi, edx
>     mov        esi, eax
>@@ -3350,13 +3358,13 @@ __declspec(naked) void CopyRow_ERMS(const uint8* src, uint8* dst, int count) {
> 
> #ifdef HAS_ARGBCOPYALPHAROW_SSE2
> // width in pixels
>-__declspec(naked) void ARGBCopyAlphaRow_SSE2(const uint8* src,
>-                                             uint8* dst,
>+__declspec(naked) void ARGBCopyAlphaRow_SSE2(const uint8_t* src,
>+                                             uint8_t* dst,
>                                              int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     pcmpeqb    xmm0, xmm0  // generate mask 0xff000000
>     pslld      xmm0, 24
>     pcmpeqb    xmm1, xmm1  // generate mask 0x00ffffff
>@@ -3387,13 +3395,13 @@ __declspec(naked) void ARGBCopyAlphaRow_SSE2(const uint8* src,
> 
> #ifdef HAS_ARGBCOPYALPHAROW_AVX2
> // width in pixels
>-__declspec(naked) void ARGBCopyAlphaRow_AVX2(const uint8* src,
>-                                             uint8* dst,
>+__declspec(naked) void ARGBCopyAlphaRow_AVX2(const uint8_t* src,
>+                                             uint8_t* dst,
>                                              int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     vpcmpeqb   ymm0, ymm0, ymm0
>     vpsrld     ymm0, ymm0, 8  // generate mask 0x00ffffff
> 
>@@ -3417,8 +3425,8 @@ __declspec(naked) void ARGBCopyAlphaRow_AVX2(const uint8* src,
> 
> #ifdef HAS_ARGBEXTRACTALPHAROW_SSE2
> // width in pixels
>-__declspec(naked) void ARGBExtractAlphaRow_SSE2(const uint8* src_argb,
>-                                                uint8* dst_a,
>+__declspec(naked) void ARGBExtractAlphaRow_SSE2(const uint8_t* src_argb,
>+                                                uint8_t* dst_a,
>                                                 int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -3445,8 +3453,8 @@ __declspec(naked) void ARGBExtractAlphaRow_SSE2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBEXTRACTALPHAROW_AVX2
> // width in pixels
>-__declspec(naked) void ARGBExtractAlphaRow_AVX2(const uint8* src_argb,
>-                                                uint8* dst_a,
>+__declspec(naked) void ARGBExtractAlphaRow_AVX2(const uint8_t* src_argb,
>+                                                uint8_t* dst_a,
>                                                 int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -3481,13 +3489,13 @@ __declspec(naked) void ARGBExtractAlphaRow_AVX2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBCOPYYTOALPHAROW_SSE2
> // width in pixels
>-__declspec(naked) void ARGBCopyYToAlphaRow_SSE2(const uint8* src,
>-                                                uint8* dst,
>+__declspec(naked) void ARGBCopyYToAlphaRow_SSE2(const uint8_t* src,
>+                                                uint8_t* dst,
>                                                 int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     pcmpeqb    xmm0, xmm0  // generate mask 0xff000000
>     pslld      xmm0, 24
>     pcmpeqb    xmm1, xmm1  // generate mask 0x00ffffff
>@@ -3520,13 +3528,13 @@ __declspec(naked) void ARGBCopyYToAlphaRow_SSE2(const uint8* src,
> 
> #ifdef HAS_ARGBCOPYYTOALPHAROW_AVX2
> // width in pixels
>-__declspec(naked) void ARGBCopyYToAlphaRow_AVX2(const uint8* src,
>-                                                uint8* dst,
>+__declspec(naked) void ARGBCopyYToAlphaRow_AVX2(const uint8_t* src,
>+                                                uint8_t* dst,
>                                                 int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src
>     mov        edx, [esp + 8]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     vpcmpeqb   ymm0, ymm0, ymm0
>     vpsrld     ymm0, ymm0, 8  // generate mask 0x00ffffff
> 
>@@ -3551,16 +3559,16 @@ __declspec(naked) void ARGBCopyYToAlphaRow_AVX2(const uint8* src,
> #endif  // HAS_ARGBCOPYYTOALPHAROW_AVX2
> 
> #ifdef HAS_SETROW_X86
>-// Write 'count' bytes using an 8 bit value repeated.
>-// Count should be multiple of 4.
>-__declspec(naked) void SetRow_X86(uint8* dst, uint8 v8, int count) {
>+// Write 'width' bytes using an 8 bit value repeated.
>+// width should be multiple of 4.
>+__declspec(naked) void SetRow_X86(uint8_t* dst, uint8_t v8, int width) {
>   __asm {
>     movzx      eax, byte ptr [esp + 8]  // v8
>     mov        edx, 0x01010101  // Duplicate byte to all bytes.
>     mul        edx  // overwrites edx with upper part of result.
>     mov        edx, edi
>     mov        edi, [esp + 4]  // dst
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     shr        ecx, 2
>     rep stosd
>     mov        edi, edx
>@@ -3568,26 +3576,28 @@ __declspec(naked) void SetRow_X86(uint8* dst, uint8 v8, int count) {
>   }
> }
> 
>-// Write 'count' bytes using an 8 bit value repeated.
>-__declspec(naked) void SetRow_ERMS(uint8* dst, uint8 v8, int count) {
>+// Write 'width' bytes using an 8 bit value repeated.
>+__declspec(naked) void SetRow_ERMS(uint8_t* dst, uint8_t v8, int width) {
>   __asm {
>     mov        edx, edi
>     mov        edi, [esp + 4]  // dst
>     mov        eax, [esp + 8]  // v8
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     rep stosb
>     mov        edi, edx
>     ret
>   }
> }
> 
>-// Write 'count' 32 bit values.
>-__declspec(naked) void ARGBSetRow_X86(uint8* dst_argb, uint32 v32, int count) {
>+// Write 'width' 32 bit values.
>+__declspec(naked) void ARGBSetRow_X86(uint8_t* dst_argb,
>+                                      uint32_t v32,
>+                                      int width) {
>   __asm {
>     mov        edx, edi
>     mov        edi, [esp + 4]  // dst
>     mov        eax, [esp + 8]  // v32
>-    mov        ecx, [esp + 12]  // count
>+    mov        ecx, [esp + 12]  // width
>     rep stosd
>     mov        edi, edx
>     ret
>@@ -3596,8 +3606,8 @@ __declspec(naked) void ARGBSetRow_X86(uint8* dst_argb, uint32 v32, int count) {
> #endif  // HAS_SETROW_X86
> 
> #ifdef HAS_YUY2TOYROW_AVX2
>-__declspec(naked) void YUY2ToYRow_AVX2(const uint8* src_yuy2,
>-                                       uint8* dst_y,
>+__declspec(naked) void YUY2ToYRow_AVX2(const uint8_t* src_yuy2,
>+                                       uint8_t* dst_y,
>                                        int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_yuy2
>@@ -3623,10 +3633,10 @@ __declspec(naked) void YUY2ToYRow_AVX2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void YUY2ToUVRow_AVX2(const uint8* src_yuy2,
>+__declspec(naked) void YUY2ToUVRow_AVX2(const uint8_t* src_yuy2,
>                                         int stride_yuy2,
>-                                        uint8* dst_u,
>-                                        uint8* dst_v,
>+                                        uint8_t* dst_u,
>+                                        uint8_t* dst_v,
>                                         int width) {
>   __asm {
>     push       esi
>@@ -3669,9 +3679,9 @@ __declspec(naked) void YUY2ToUVRow_AVX2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void YUY2ToUV422Row_AVX2(const uint8* src_yuy2,
>-                                           uint8* dst_u,
>-                                           uint8* dst_v,
>+__declspec(naked) void YUY2ToUV422Row_AVX2(const uint8_t* src_yuy2,
>+                                           uint8_t* dst_u,
>+                                           uint8_t* dst_v,
>                                            int width) {
>   __asm {
>     push       edi
>@@ -3709,8 +3719,8 @@ __declspec(naked) void YUY2ToUV422Row_AVX2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void UYVYToYRow_AVX2(const uint8* src_uyvy,
>-                                       uint8* dst_y,
>+__declspec(naked) void UYVYToYRow_AVX2(const uint8_t* src_uyvy,
>+                                       uint8_t* dst_y,
>                                        int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_uyvy
>@@ -3734,10 +3744,10 @@ __declspec(naked) void UYVYToYRow_AVX2(const uint8* src_uyvy,
>   }
> }
> 
>-__declspec(naked) void UYVYToUVRow_AVX2(const uint8* src_uyvy,
>+__declspec(naked) void UYVYToUVRow_AVX2(const uint8_t* src_uyvy,
>                                         int stride_uyvy,
>-                                        uint8* dst_u,
>-                                        uint8* dst_v,
>+                                        uint8_t* dst_u,
>+                                        uint8_t* dst_v,
>                                         int width) {
>   __asm {
>     push       esi
>@@ -3780,9 +3790,9 @@ __declspec(naked) void UYVYToUVRow_AVX2(const uint8* src_uyvy,
>   }
> }
> 
>-__declspec(naked) void UYVYToUV422Row_AVX2(const uint8* src_uyvy,
>-                                           uint8* dst_u,
>-                                           uint8* dst_v,
>+__declspec(naked) void UYVYToUV422Row_AVX2(const uint8_t* src_uyvy,
>+                                           uint8_t* dst_u,
>+                                           uint8_t* dst_v,
>                                            int width) {
>   __asm {
>     push       edi
>@@ -3822,8 +3832,8 @@ __declspec(naked) void UYVYToUV422Row_AVX2(const uint8* src_uyvy,
> #endif  // HAS_YUY2TOYROW_AVX2
> 
> #ifdef HAS_YUY2TOYROW_SSE2
>-__declspec(naked) void YUY2ToYRow_SSE2(const uint8* src_yuy2,
>-                                       uint8* dst_y,
>+__declspec(naked) void YUY2ToYRow_SSE2(const uint8_t* src_yuy2,
>+                                       uint8_t* dst_y,
>                                        int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_yuy2
>@@ -3847,10 +3857,10 @@ __declspec(naked) void YUY2ToYRow_SSE2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void YUY2ToUVRow_SSE2(const uint8* src_yuy2,
>+__declspec(naked) void YUY2ToUVRow_SSE2(const uint8_t* src_yuy2,
>                                         int stride_yuy2,
>-                                        uint8* dst_u,
>-                                        uint8* dst_v,
>+                                        uint8_t* dst_u,
>+                                        uint8_t* dst_v,
>                                         int width) {
>   __asm {
>     push       esi
>@@ -3892,9 +3902,9 @@ __declspec(naked) void YUY2ToUVRow_SSE2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void YUY2ToUV422Row_SSE2(const uint8* src_yuy2,
>-                                           uint8* dst_u,
>-                                           uint8* dst_v,
>+__declspec(naked) void YUY2ToUV422Row_SSE2(const uint8_t* src_yuy2,
>+                                           uint8_t* dst_u,
>+                                           uint8_t* dst_v,
>                                            int width) {
>   __asm {
>     push       edi
>@@ -3929,8 +3939,8 @@ __declspec(naked) void YUY2ToUV422Row_SSE2(const uint8* src_yuy2,
>   }
> }
> 
>-__declspec(naked) void UYVYToYRow_SSE2(const uint8* src_uyvy,
>-                                       uint8* dst_y,
>+__declspec(naked) void UYVYToYRow_SSE2(const uint8_t* src_uyvy,
>+                                       uint8_t* dst_y,
>                                        int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_uyvy
>@@ -3952,10 +3962,10 @@ __declspec(naked) void UYVYToYRow_SSE2(const uint8* src_uyvy,
>   }
> }
> 
>-__declspec(naked) void UYVYToUVRow_SSE2(const uint8* src_uyvy,
>+__declspec(naked) void UYVYToUVRow_SSE2(const uint8_t* src_uyvy,
>                                         int stride_uyvy,
>-                                        uint8* dst_u,
>-                                        uint8* dst_v,
>+                                        uint8_t* dst_u,
>+                                        uint8_t* dst_v,
>                                         int width) {
>   __asm {
>     push       esi
>@@ -3997,9 +4007,9 @@ __declspec(naked) void UYVYToUVRow_SSE2(const uint8* src_uyvy,
>   }
> }
> 
>-__declspec(naked) void UYVYToUV422Row_SSE2(const uint8* src_uyvy,
>-                                           uint8* dst_u,
>-                                           uint8* dst_v,
>+__declspec(naked) void UYVYToUV422Row_SSE2(const uint8_t* src_uyvy,
>+                                           uint8_t* dst_u,
>+                                           uint8_t* dst_v,
>                                            int width) {
>   __asm {
>     push       edi
>@@ -4041,10 +4051,10 @@ __declspec(naked) void UYVYToUV422Row_SSE2(const uint8* src_uyvy,
> // =((A2*C2)+(B2*(255-C2))+255)/256
> // signed version of math
> // =(((A2-128)*C2)+((B2-128)*(255-C2))+32768+127)/256
>-__declspec(naked) void BlendPlaneRow_SSSE3(const uint8* src0,
>-                                           const uint8* src1,
>-                                           const uint8* alpha,
>-                                           uint8* dst,
>+__declspec(naked) void BlendPlaneRow_SSSE3(const uint8_t* src0,
>+                                           const uint8_t* src1,
>+                                           const uint8_t* alpha,
>+                                           uint8_t* dst,
>                                            int width) {
>   __asm {
>     push       esi
>@@ -4098,10 +4108,10 @@ __declspec(naked) void BlendPlaneRow_SSSE3(const uint8* src0,
> // =((A2*C2)+(B2*(255-C2))+255)/256
> // signed version of math
> // =(((A2-128)*C2)+((B2-128)*(255-C2))+32768+127)/256
>-__declspec(naked) void BlendPlaneRow_AVX2(const uint8* src0,
>-                                          const uint8* src1,
>-                                          const uint8* alpha,
>-                                          uint8* dst,
>+__declspec(naked) void BlendPlaneRow_AVX2(const uint8_t* src0,
>+                                          const uint8_t* src1,
>+                                          const uint8_t* alpha,
>+                                          uint8_t* dst,
>                                           int width) {
>   __asm {
>     push        esi
>@@ -4162,9 +4172,9 @@ static const uvec8 kShuffleAlpha = {3u,  0x80, 3u,  0x80, 7u,  0x80, 7u,  0x80,
>                                     11u, 0x80, 11u, 0x80, 15u, 0x80, 15u, 0x80};
> 
> // Blend 8 pixels at a time.
>-__declspec(naked) void ARGBBlendRow_SSSE3(const uint8* src_argb0,
>-                                          const uint8* src_argb1,
>-                                          uint8* dst_argb,
>+__declspec(naked) void ARGBBlendRow_SSSE3(const uint8_t* src_argb0,
>+                                          const uint8_t* src_argb1,
>+                                          uint8_t* dst_argb,
>                                           int width) {
>   __asm {
>     push       esi
>@@ -4253,8 +4263,8 @@ static const uvec8 kShuffleAlpha1 = {
>     11u, 11u, 11u, 11u, 11u, 11u, 128u, 128u,
>     15u, 15u, 15u, 15u, 15u, 15u, 128u, 128u,
> };
>-__declspec(naked) void ARGBAttenuateRow_SSSE3(const uint8* src_argb,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGBAttenuateRow_SSSE3(const uint8_t* src_argb,
>+                                              uint8_t* dst_argb,
>                                               int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb0
>@@ -4298,8 +4308,8 @@ __declspec(naked) void ARGBAttenuateRow_SSSE3(const uint8* src_argb,
> static const uvec8 kShuffleAlpha_AVX2 = {6u,   7u,   6u,   7u,  6u,  7u,
>                                          128u, 128u, 14u,  15u, 14u, 15u,
>                                          14u,  15u,  128u, 128u};
>-__declspec(naked) void ARGBAttenuateRow_AVX2(const uint8* src_argb,
>-                                             uint8* dst_argb,
>+__declspec(naked) void ARGBAttenuateRow_AVX2(const uint8_t* src_argb,
>+                                             uint8_t* dst_argb,
>                                              int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb0
>@@ -4336,8 +4346,8 @@ __declspec(naked) void ARGBAttenuateRow_AVX2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBUNATTENUATEROW_SSE2
> // Unattenuate 4 pixels at a time.
>-__declspec(naked) void ARGBUnattenuateRow_SSE2(const uint8* src_argb,
>-                                               uint8* dst_argb,
>+__declspec(naked) void ARGBUnattenuateRow_SSE2(const uint8_t* src_argb,
>+                                               uint8_t* dst_argb,
>                                                int width) {
>   __asm {
>     push       ebx
>@@ -4392,8 +4402,8 @@ static const uvec8 kUnattenShuffleAlpha_AVX2 = {
> // TODO(fbarchard): Enable USE_GATHER for future hardware if faster.
> // USE_GATHER is not on by default, due to being a slow instruction.
> #ifdef USE_GATHER
>-__declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8* src_argb,
>-                                               uint8* dst_argb,
>+__declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8_t* src_argb,
>+                                               uint8_t* dst_argb,
>                                                int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb0
>@@ -4426,8 +4436,8 @@ __declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8* src_argb,
>   }
> }
> #else   // USE_GATHER
>-__declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8* src_argb,
>-                                               uint8* dst_argb,
>+__declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8_t* src_argb,
>+                                               uint8_t* dst_argb,
>                                                int width) {
>   __asm {
> 
>@@ -4495,8 +4505,8 @@ __declspec(naked) void ARGBUnattenuateRow_AVX2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBGRAYROW_SSSE3
> // Convert 8 ARGB pixels (64 bytes) to 8 Gray ARGB pixels.
>-__declspec(naked) void ARGBGrayRow_SSSE3(const uint8* src_argb,
>-                                         uint8* dst_argb,
>+__declspec(naked) void ARGBGrayRow_SSSE3(const uint8_t* src_argb,
>+                                         uint8_t* dst_argb,
>                                          int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -4552,7 +4562,7 @@ static const vec8 kARGBToSepiaR = {24, 98, 50, 0, 24, 98, 50, 0,
>                                    24, 98, 50, 0, 24, 98, 50, 0};
> 
> // Convert 8 ARGB pixels (32 bytes) to 8 Sepia ARGB pixels.
>-__declspec(naked) void ARGBSepiaRow_SSSE3(uint8* dst_argb, int width) {
>+__declspec(naked) void ARGBSepiaRow_SSSE3(uint8_t* dst_argb, int width) {
>   __asm {
>     mov        eax, [esp + 4] /* dst_argb */
>     mov        ecx, [esp + 8] /* width */
>@@ -4608,9 +4618,9 @@ __declspec(naked) void ARGBSepiaRow_SSSE3(uint8* dst_argb, int width) {
> // Same as Sepia except matrix is provided.
> // TODO(fbarchard): packuswbs only use half of the reg. To make RGBA, combine R
> // and B into a high and low, then G/A, unpackl/hbw and then unpckl/hwd.
>-__declspec(naked) void ARGBColorMatrixRow_SSSE3(const uint8* src_argb,
>-                                                uint8* dst_argb,
>-                                                const int8* matrix_argb,
>+__declspec(naked) void ARGBColorMatrixRow_SSSE3(const uint8_t* src_argb,
>+                                                uint8_t* dst_argb,
>+                                                const int8_t* matrix_argb,
>                                                 int width) {
>   __asm {
>     mov        eax, [esp + 4] /* src_argb */
>@@ -4670,7 +4680,7 @@ __declspec(naked) void ARGBColorMatrixRow_SSSE3(const uint8* src_argb,
> 
> #ifdef HAS_ARGBQUANTIZEROW_SSE2
> // Quantize 4 ARGB pixels (16 bytes).
>-__declspec(naked) void ARGBQuantizeRow_SSE2(uint8* dst_argb,
>+__declspec(naked) void ARGBQuantizeRow_SSE2(uint8_t* dst_argb,
>                                             int scale,
>                                             int interval_size,
>                                             int interval_offset,
>@@ -4717,10 +4727,10 @@ __declspec(naked) void ARGBQuantizeRow_SSE2(uint8* dst_argb,
> 
> #ifdef HAS_ARGBSHADEROW_SSE2
> // Shade 4 pixels at a time by specified value.
>-__declspec(naked) void ARGBShadeRow_SSE2(const uint8* src_argb,
>-                                         uint8* dst_argb,
>+__declspec(naked) void ARGBShadeRow_SSE2(const uint8_t* src_argb,
>+                                         uint8_t* dst_argb,
>                                          int width,
>-                                         uint32 value) {
>+                                         uint32_t value) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>     mov        edx, [esp + 8]  // dst_argb
>@@ -4752,9 +4762,9 @@ __declspec(naked) void ARGBShadeRow_SSE2(const uint8* src_argb,
> 
> #ifdef HAS_ARGBMULTIPLYROW_SSE2
> // Multiply 2 rows of ARGB pixels together, 4 pixels at a time.
>-__declspec(naked) void ARGBMultiplyRow_SSE2(const uint8* src_argb0,
>-                                            const uint8* src_argb1,
>-                                            uint8* dst_argb,
>+__declspec(naked) void ARGBMultiplyRow_SSE2(const uint8_t* src_argb0,
>+                                            const uint8_t* src_argb1,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -4792,9 +4802,9 @@ __declspec(naked) void ARGBMultiplyRow_SSE2(const uint8* src_argb0,
> #ifdef HAS_ARGBADDROW_SSE2
> // Add 2 rows of ARGB pixels together, 4 pixels at a time.
> // TODO(fbarchard): Port this to posix, neon and other math functions.
>-__declspec(naked) void ARGBAddRow_SSE2(const uint8* src_argb0,
>-                                       const uint8* src_argb1,
>-                                       uint8* dst_argb,
>+__declspec(naked) void ARGBAddRow_SSE2(const uint8_t* src_argb0,
>+                                       const uint8_t* src_argb1,
>+                                       uint8_t* dst_argb,
>                                        int width) {
>   __asm {
>     push       esi
>@@ -4841,9 +4851,9 @@ __declspec(naked) void ARGBAddRow_SSE2(const uint8* src_argb0,
> 
> #ifdef HAS_ARGBSUBTRACTROW_SSE2
> // Subtract 2 rows of ARGB pixels together, 4 pixels at a time.
>-__declspec(naked) void ARGBSubtractRow_SSE2(const uint8* src_argb0,
>-                                            const uint8* src_argb1,
>-                                            uint8* dst_argb,
>+__declspec(naked) void ARGBSubtractRow_SSE2(const uint8_t* src_argb0,
>+                                            const uint8_t* src_argb1,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -4871,9 +4881,9 @@ __declspec(naked) void ARGBSubtractRow_SSE2(const uint8* src_argb0,
> 
> #ifdef HAS_ARGBMULTIPLYROW_AVX2
> // Multiply 2 rows of ARGB pixels together, 8 pixels at a time.
>-__declspec(naked) void ARGBMultiplyRow_AVX2(const uint8* src_argb0,
>-                                            const uint8* src_argb1,
>-                                            uint8* dst_argb,
>+__declspec(naked) void ARGBMultiplyRow_AVX2(const uint8_t* src_argb0,
>+                                            const uint8_t* src_argb1,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -4909,9 +4919,9 @@ __declspec(naked) void ARGBMultiplyRow_AVX2(const uint8* src_argb0,
> 
> #ifdef HAS_ARGBADDROW_AVX2
> // Add 2 rows of ARGB pixels together, 8 pixels at a time.
>-__declspec(naked) void ARGBAddRow_AVX2(const uint8* src_argb0,
>-                                       const uint8* src_argb1,
>-                                       uint8* dst_argb,
>+__declspec(naked) void ARGBAddRow_AVX2(const uint8_t* src_argb0,
>+                                       const uint8_t* src_argb1,
>+                                       uint8_t* dst_argb,
>                                        int width) {
>   __asm {
>     push       esi
>@@ -4939,9 +4949,9 @@ __declspec(naked) void ARGBAddRow_AVX2(const uint8* src_argb0,
> 
> #ifdef HAS_ARGBSUBTRACTROW_AVX2
> // Subtract 2 rows of ARGB pixels together, 8 pixels at a time.
>-__declspec(naked) void ARGBSubtractRow_AVX2(const uint8* src_argb0,
>-                                            const uint8* src_argb1,
>-                                            uint8* dst_argb,
>+__declspec(naked) void ARGBSubtractRow_AVX2(const uint8_t* src_argb0,
>+                                            const uint8_t* src_argb1,
>+                                            uint8_t* dst_argb,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -4972,10 +4982,10 @@ __declspec(naked) void ARGBSubtractRow_AVX2(const uint8* src_argb0,
> // -1  0  1
> // -2  0  2
> // -1  0  1
>-__declspec(naked) void SobelXRow_SSE2(const uint8* src_y0,
>-                                      const uint8* src_y1,
>-                                      const uint8* src_y2,
>-                                      uint8* dst_sobelx,
>+__declspec(naked) void SobelXRow_SSE2(const uint8_t* src_y0,
>+                                      const uint8_t* src_y1,
>+                                      const uint8_t* src_y2,
>+                                      uint8_t* dst_sobelx,
>                                       int width) {
>   __asm {
>     push       esi
>@@ -5030,9 +5040,9 @@ __declspec(naked) void SobelXRow_SSE2(const uint8* src_y0,
> // -1 -2 -1
> //  0  0  0
> //  1  2  1
>-__declspec(naked) void SobelYRow_SSE2(const uint8* src_y0,
>-                                      const uint8* src_y1,
>-                                      uint8* dst_sobely,
>+__declspec(naked) void SobelYRow_SSE2(const uint8_t* src_y0,
>+                                      const uint8_t* src_y1,
>+                                      uint8_t* dst_sobely,
>                                       int width) {
>   __asm {
>     push       esi
>@@ -5084,9 +5094,9 @@ __declspec(naked) void SobelYRow_SSE2(const uint8* src_y0,
> // R = Sobel
> // G = Sobel
> // B = Sobel
>-__declspec(naked) void SobelRow_SSE2(const uint8* src_sobelx,
>-                                     const uint8* src_sobely,
>-                                     uint8* dst_argb,
>+__declspec(naked) void SobelRow_SSE2(const uint8_t* src_sobelx,
>+                                     const uint8_t* src_sobely,
>+                                     uint8_t* dst_argb,
>                                      int width) {
>   __asm {
>     push       esi
>@@ -5132,9 +5142,9 @@ __declspec(naked) void SobelRow_SSE2(const uint8* src_sobelx,
> 
> #ifdef HAS_SOBELTOPLANEROW_SSE2
> // Adds Sobel X and Sobel Y and stores Sobel into a plane.
>-__declspec(naked) void SobelToPlaneRow_SSE2(const uint8* src_sobelx,
>-                                            const uint8* src_sobely,
>-                                            uint8* dst_y,
>+__declspec(naked) void SobelToPlaneRow_SSE2(const uint8_t* src_sobelx,
>+                                            const uint8_t* src_sobely,
>+                                            uint8_t* dst_y,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -5166,9 +5176,9 @@ __declspec(naked) void SobelToPlaneRow_SSE2(const uint8* src_sobelx,
> // R = Sobel X
> // G = Sobel
> // B = Sobel Y
>-__declspec(naked) void SobelXYRow_SSE2(const uint8* src_sobelx,
>-                                       const uint8* src_sobely,
>-                                       uint8* dst_argb,
>+__declspec(naked) void SobelXYRow_SSE2(const uint8_t* src_sobelx,
>+                                       const uint8_t* src_sobely,
>+                                       uint8_t* dst_argb,
>                                        int width) {
>   __asm {
>     push       esi
>@@ -5225,11 +5235,11 @@ __declspec(naked) void SobelXYRow_SSE2(const uint8* src_sobelx,
> // count is number of averaged pixels to produce.
> // Does 4 pixels at a time.
> // This function requires alignment on accumulation buffer pointers.
>-void CumulativeSumToAverageRow_SSE2(const int32* topleft,
>-                                    const int32* botleft,
>+void CumulativeSumToAverageRow_SSE2(const int32_t* topleft,
>+                                    const int32_t* botleft,
>                                     int width,
>                                     int area,
>-                                    uint8* dst,
>+                                    uint8_t* dst,
>                                     int count) {
>   __asm {
>     mov        eax, topleft  // eax topleft
>@@ -5375,9 +5385,9 @@ void CumulativeSumToAverageRow_SSE2(const int32* topleft,
> #ifdef HAS_COMPUTECUMULATIVESUMROW_SSE2
> // Creates a table of cumulative sums where each value is a sum of all values
> // above and to the left of the value.
>-void ComputeCumulativeSumRow_SSE2(const uint8* row,
>-                                  int32* cumsum,
>-                                  const int32* previous_cumsum,
>+void ComputeCumulativeSumRow_SSE2(const uint8_t* row,
>+                                  int32_t* cumsum,
>+                                  const int32_t* previous_cumsum,
>                                   int width) {
>   __asm {
>     mov        eax, row
>@@ -5460,9 +5470,9 @@ void ComputeCumulativeSumRow_SSE2(const uint8* row,
> 
> #ifdef HAS_ARGBAFFINEROW_SSE2
> // Copy ARGB pixels from source image with slope to a row of destination.
>-__declspec(naked) LIBYUV_API void ARGBAffineRow_SSE2(const uint8* src_argb,
>+__declspec(naked) LIBYUV_API void ARGBAffineRow_SSE2(const uint8_t* src_argb,
>                                                      int src_argb_stride,
>-                                                     uint8* dst_argb,
>+                                                     uint8_t* dst_argb,
>                                                      const float* uv_dudv,
>                                                      int width) {
>   __asm {
>@@ -5546,8 +5556,8 @@ __declspec(naked) LIBYUV_API void ARGBAffineRow_SSE2(const uint8* src_argb,
> 
> #ifdef HAS_INTERPOLATEROW_AVX2
> // Bilinear filter 32x2 -> 32x1
>-__declspec(naked) void InterpolateRow_AVX2(uint8* dst_ptr,
>-                                           const uint8* src_ptr,
>+__declspec(naked) void InterpolateRow_AVX2(uint8_t* dst_ptr,
>+                                           const uint8_t* src_ptr,
>                                            ptrdiff_t src_stride,
>                                            int dst_width,
>                                            int source_y_fraction) {
>@@ -5623,8 +5633,8 @@ __declspec(naked) void InterpolateRow_AVX2(uint8* dst_ptr,
> 
> // Bilinear filter 16x2 -> 16x1
> // TODO(fbarchard): Consider allowing 256 using memcpy.
>-__declspec(naked) void InterpolateRow_SSSE3(uint8* dst_ptr,
>-                                            const uint8* src_ptr,
>+__declspec(naked) void InterpolateRow_SSSE3(uint8_t* dst_ptr,
>+                                            const uint8_t* src_ptr,
>                                             ptrdiff_t src_stride,
>                                             int dst_width,
>                                             int source_y_fraction) {
>@@ -5705,9 +5715,9 @@ __declspec(naked) void InterpolateRow_SSSE3(uint8* dst_ptr,
> }
> 
> // For BGRAToARGB, ABGRToARGB, RGBAToARGB, and ARGBToRGBA.
>-__declspec(naked) void ARGBShuffleRow_SSSE3(const uint8* src_argb,
>-                                            uint8* dst_argb,
>-                                            const uint8* shuffler,
>+__declspec(naked) void ARGBShuffleRow_SSSE3(const uint8_t* src_argb,
>+                                            uint8_t* dst_argb,
>+                                            const uint8_t* shuffler,
>                                             int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -5732,9 +5742,9 @@ __declspec(naked) void ARGBShuffleRow_SSSE3(const uint8* src_argb,
> }
> 
> #ifdef HAS_ARGBSHUFFLEROW_AVX2
>-__declspec(naked) void ARGBShuffleRow_AVX2(const uint8* src_argb,
>-                                           uint8* dst_argb,
>-                                           const uint8* shuffler,
>+__declspec(naked) void ARGBShuffleRow_AVX2(const uint8_t* src_argb,
>+                                           uint8_t* dst_argb,
>+                                           const uint8_t* shuffler,
>                                            int width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -5761,133 +5771,16 @@ __declspec(naked) void ARGBShuffleRow_AVX2(const uint8* src_argb,
> }
> #endif  // HAS_ARGBSHUFFLEROW_AVX2
> 
>-__declspec(naked) void ARGBShuffleRow_SSE2(const uint8* src_argb,
>-                                           uint8* dst_argb,
>-                                           const uint8* shuffler,
>-                                           int width) {
>-  __asm {
>-    push       ebx
>-    push       esi
>-    mov        eax, [esp + 8 + 4]  // src_argb
>-    mov        edx, [esp + 8 + 8]  // dst_argb
>-    mov        esi, [esp + 8 + 12]  // shuffler
>-    mov        ecx, [esp + 8 + 16]  // width
>-    pxor       xmm5, xmm5
>-
>-    mov        ebx, [esi]  // shuffler
>-    cmp        ebx, 0x03000102
>-    je         shuf_3012
>-    cmp        ebx, 0x00010203
>-    je         shuf_0123
>-    cmp        ebx, 0x00030201
>-    je         shuf_0321
>-    cmp        ebx, 0x02010003
>-    je         shuf_2103
>-
>-        // TODO(fbarchard): Use one source pointer and 3 offsets.
>-  shuf_any1:
>-    movzx      ebx, byte ptr [esi]
>-    movzx      ebx, byte ptr [eax + ebx]
>-    mov        [edx], bl
>-    movzx      ebx, byte ptr [esi + 1]
>-    movzx      ebx, byte ptr [eax + ebx]
>-    mov        [edx + 1], bl
>-    movzx      ebx, byte ptr [esi + 2]
>-    movzx      ebx, byte ptr [eax + ebx]
>-    mov        [edx + 2], bl
>-    movzx      ebx, byte ptr [esi + 3]
>-    movzx      ebx, byte ptr [eax + ebx]
>-    mov        [edx + 3], bl
>-    lea        eax, [eax + 4]
>-    lea        edx, [edx + 4]
>-    sub        ecx, 1
>-    jg         shuf_any1
>-    jmp        shuf99
>-
>-  shuf_0123:
>-    movdqu     xmm0, [eax]
>-    lea        eax, [eax + 16]
>-    movdqa     xmm1, xmm0
>-    punpcklbw  xmm0, xmm5
>-    punpckhbw  xmm1, xmm5
>-    pshufhw    xmm0, xmm0, 01Bh  // 1B = 00011011 = 0x0123 = BGRAToARGB
>-    pshuflw    xmm0, xmm0, 01Bh
>-    pshufhw    xmm1, xmm1, 01Bh
>-    pshuflw    xmm1, xmm1, 01Bh
>-    packuswb   xmm0, xmm1
>-    movdqu     [edx], xmm0
>-    lea        edx, [edx + 16]
>-    sub        ecx, 4
>-    jg         shuf_0123
>-    jmp        shuf99
>-
>-  shuf_0321:
>-    movdqu     xmm0, [eax]
>-    lea        eax, [eax + 16]
>-    movdqa     xmm1, xmm0
>-    punpcklbw  xmm0, xmm5
>-    punpckhbw  xmm1, xmm5
>-    pshufhw    xmm0, xmm0, 039h  // 39 = 00111001 = 0x0321 = RGBAToARGB
>-    pshuflw    xmm0, xmm0, 039h
>-    pshufhw    xmm1, xmm1, 039h
>-    pshuflw    xmm1, xmm1, 039h
>-    packuswb   xmm0, xmm1
>-    movdqu     [edx], xmm0
>-    lea        edx, [edx + 16]
>-    sub        ecx, 4
>-    jg         shuf_0321
>-    jmp        shuf99
>-
>-  shuf_2103:
>-    movdqu     xmm0, [eax]
>-    lea        eax, [eax + 16]
>-    movdqa     xmm1, xmm0
>-    punpcklbw  xmm0, xmm5
>-    punpckhbw  xmm1, xmm5
>-    pshufhw    xmm0, xmm0, 093h  // 93 = 10010011 = 0x2103 = ARGBToRGBA
>-    pshuflw    xmm0, xmm0, 093h
>-    pshufhw    xmm1, xmm1, 093h
>-    pshuflw    xmm1, xmm1, 093h
>-    packuswb   xmm0, xmm1
>-    movdqu     [edx], xmm0
>-    lea        edx, [edx + 16]
>-    sub        ecx, 4
>-    jg         shuf_2103
>-    jmp        shuf99
>-
>-  shuf_3012:
>-    movdqu     xmm0, [eax]
>-    lea        eax, [eax + 16]
>-    movdqa     xmm1, xmm0
>-    punpcklbw  xmm0, xmm5
>-    punpckhbw  xmm1, xmm5
>-    pshufhw    xmm0, xmm0, 0C6h  // C6 = 11000110 = 0x3012 = ABGRToARGB
>-    pshuflw    xmm0, xmm0, 0C6h
>-    pshufhw    xmm1, xmm1, 0C6h
>-    pshuflw    xmm1, xmm1, 0C6h
>-    packuswb   xmm0, xmm1
>-    movdqu     [edx], xmm0
>-    lea        edx, [edx + 16]
>-    sub        ecx, 4
>-    jg         shuf_3012
>-
>-  shuf99:
>-    pop        esi
>-    pop        ebx
>-    ret
>-  }
>-}
>-
> // YUY2 - Macro-pixel = 2 image pixels
> // Y0U0Y1V0....Y2U2Y3V2...Y4U4Y5V4....
> 
> // UYVY - Macro-pixel = 2 image pixels
> // U0Y0V0Y1
> 
>-__declspec(naked) void I422ToYUY2Row_SSE2(const uint8* src_y,
>-                                          const uint8* src_u,
>-                                          const uint8* src_v,
>-                                          uint8* dst_frame,
>+__declspec(naked) void I422ToYUY2Row_SSE2(const uint8_t* src_y,
>+                                          const uint8_t* src_u,
>+                                          const uint8_t* src_v,
>+                                          uint8_t* dst_frame,
>                                           int width) {
>   __asm {
>     push       esi
>@@ -5921,10 +5814,10 @@ __declspec(naked) void I422ToYUY2Row_SSE2(const uint8* src_y,
>   }
> }
> 
>-__declspec(naked) void I422ToUYVYRow_SSE2(const uint8* src_y,
>-                                          const uint8* src_u,
>-                                          const uint8* src_v,
>-                                          uint8* dst_frame,
>+__declspec(naked) void I422ToUYVYRow_SSE2(const uint8_t* src_y,
>+                                          const uint8_t* src_u,
>+                                          const uint8_t* src_v,
>+                                          uint8_t* dst_frame,
>                                           int width) {
>   __asm {
>     push       esi
>@@ -5959,8 +5852,8 @@ __declspec(naked) void I422ToUYVYRow_SSE2(const uint8* src_y,
> }
> 
> #ifdef HAS_ARGBPOLYNOMIALROW_SSE2
>-__declspec(naked) void ARGBPolynomialRow_SSE2(const uint8* src_argb,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGBPolynomialRow_SSE2(const uint8_t* src_argb,
>+                                              uint8_t* dst_argb,
>                                               const float* poly,
>                                               int width) {
>   __asm {
>@@ -6018,8 +5911,8 @@ __declspec(naked) void ARGBPolynomialRow_SSE2(const uint8* src_argb,
> #endif  // HAS_ARGBPOLYNOMIALROW_SSE2
> 
> #ifdef HAS_ARGBPOLYNOMIALROW_AVX2
>-__declspec(naked) void ARGBPolynomialRow_AVX2(const uint8* src_argb,
>-                                              uint8* dst_argb,
>+__declspec(naked) void ARGBPolynomialRow_AVX2(const uint8_t* src_argb,
>+                                              uint8_t* dst_argb,
>                                               const float* poly,
>                                               int width) {
>   __asm {
>@@ -6058,8 +5951,8 @@ __declspec(naked) void ARGBPolynomialRow_AVX2(const uint8* src_argb,
> 
> #ifdef HAS_HALFFLOATROW_SSE2
> static float kExpBias = 1.9259299444e-34f;
>-__declspec(naked) void HalfFloatRow_SSE2(const uint16* src,
>-                                         uint16* dst,
>+__declspec(naked) void HalfFloatRow_SSE2(const uint16_t* src,
>+                                         uint16_t* dst,
>                                          float scale,
>                                          int width) {
>   __asm {
>@@ -6095,8 +5988,8 @@ __declspec(naked) void HalfFloatRow_SSE2(const uint16* src,
> #endif  // HAS_HALFFLOATROW_SSE2
> 
> #ifdef HAS_HALFFLOATROW_AVX2
>-__declspec(naked) void HalfFloatRow_AVX2(const uint16* src,
>-                                         uint16* dst,
>+__declspec(naked) void HalfFloatRow_AVX2(const uint16_t* src,
>+                                         uint16_t* dst,
>                                          float scale,
>                                          int width) {
>   __asm {
>@@ -6133,8 +6026,8 @@ __declspec(naked) void HalfFloatRow_AVX2(const uint16* src,
> #endif  // HAS_HALFFLOATROW_AVX2
> 
> #ifdef HAS_HALFFLOATROW_F16C
>-__declspec(naked) void HalfFloatRow_F16C(const uint16* src,
>-                                         uint16* dst,
>+__declspec(naked) void HalfFloatRow_F16C(const uint16_t* src,
>+                                         uint16_t* dst,
>                                          float scale,
>                                          int width) {
>   __asm {
>@@ -6167,8 +6060,8 @@ __declspec(naked) void HalfFloatRow_F16C(const uint16* src,
> 
> #ifdef HAS_ARGBCOLORTABLEROW_X86
> // Tranform ARGB pixels with color table.
>-__declspec(naked) void ARGBColorTableRow_X86(uint8* dst_argb,
>-                                             const uint8* table_argb,
>+__declspec(naked) void ARGBColorTableRow_X86(uint8_t* dst_argb,
>+                                             const uint8_t* table_argb,
>                                              int width) {
>   __asm {
>     push       esi
>@@ -6201,8 +6094,8 @@ __declspec(naked) void ARGBColorTableRow_X86(uint8* dst_argb,
> 
> #ifdef HAS_RGBCOLORTABLEROW_X86
> // Tranform RGB pixels with color table.
>-__declspec(naked) void RGBColorTableRow_X86(uint8* dst_argb,
>-                                            const uint8* table_argb,
>+__declspec(naked) void RGBColorTableRow_X86(uint8_t* dst_argb,
>+                                            const uint8_t* table_argb,
>                                             int width) {
>   __asm {
>     push       esi
>@@ -6233,11 +6126,11 @@ __declspec(naked) void RGBColorTableRow_X86(uint8* dst_argb,
> 
> #ifdef HAS_ARGBLUMACOLORTABLEROW_SSSE3
> // Tranform RGB pixels with luma table.
>-__declspec(naked) void ARGBLumaColorTableRow_SSSE3(const uint8* src_argb,
>-                                                   uint8* dst_argb,
>+__declspec(naked) void ARGBLumaColorTableRow_SSSE3(const uint8_t* src_argb,
>+                                                   uint8_t* dst_argb,
>                                                    int width,
>-                                                   const uint8* luma,
>-                                                   uint32 lumacoeff) {
>+                                                   const uint8_t* luma,
>+                                                   uint32_t lumacoeff) {
>   __asm {
>     push       esi
>     push       edi
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale.cc
>index 9104acb95fc5608c010752c323ff12ff9de6994b..2cfa1c6cb1c4b8a4be72bb590372aa7b54ccd7ee 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale.cc
>@@ -39,12 +39,12 @@ static void ScalePlaneDown2(int src_width,
>                             int dst_height,
>                             int src_stride,
>                             int dst_stride,
>-                            const uint8* src_ptr,
>-                            uint8* dst_ptr,
>+                            const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown2)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                        uint8* dst_ptr, int dst_width) =
>+  void (*ScaleRowDown2)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                        uint8_t* dst_ptr, int dst_width) =
>       filtering == kFilterNone
>           ? ScaleRowDown2_C
>           : (filtering == kFilterLinear ? ScaleRowDown2Linear_C
>@@ -103,13 +103,6 @@ static void ScalePlaneDown2(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN2_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_ptr, 4) &&
>-      IS_ALIGNED(src_stride, 4) && IS_ALIGNED(row_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    ScaleRowDown2 = filtering ? ScaleRowDown2Box_DSPR2 : ScaleRowDown2_DSPR2;
>-  }
>-#endif
> #if defined(HAS_SCALEROWDOWN2_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ScaleRowDown2 =
>@@ -143,12 +136,12 @@ static void ScalePlaneDown2_16(int src_width,
>                                int dst_height,
>                                int src_stride,
>                                int dst_stride,
>-                               const uint16* src_ptr,
>-                               uint16* dst_ptr,
>+                               const uint16_t* src_ptr,
>+                               uint16_t* dst_ptr,
>                                enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown2)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                        uint16* dst_ptr, int dst_width) =
>+  void (*ScaleRowDown2)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                        uint16_t* dst_ptr, int dst_width) =
>       filtering == kFilterNone
>           ? ScaleRowDown2_16_C
>           : (filtering == kFilterLinear ? ScaleRowDown2Linear_16_C
>@@ -176,14 +169,6 @@ static void ScalePlaneDown2_16(int src_width,
>                                           : ScaleRowDown2Box_16_SSE2);
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN2_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_ptr, 4) &&
>-      IS_ALIGNED(src_stride, 4) && IS_ALIGNED(row_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    ScaleRowDown2 =
>-        filtering ? ScaleRowDown2Box_16_DSPR2 : ScaleRowDown2_16_DSPR2;
>-  }
>-#endif
> 
>   if (filtering == kFilterLinear) {
>     src_stride = 0;
>@@ -206,12 +191,12 @@ static void ScalePlaneDown4(int src_width,
>                             int dst_height,
>                             int src_stride,
>                             int dst_stride,
>-                            const uint8* src_ptr,
>-                            uint8* dst_ptr,
>+                            const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown4)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                        uint8* dst_ptr, int dst_width) =
>+  void (*ScaleRowDown4)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                        uint8_t* dst_ptr, int dst_width) =
>       filtering ? ScaleRowDown4Box_C : ScaleRowDown4_C;
>   int row_stride = src_stride << 2;
>   (void)src_width;
>@@ -247,13 +232,6 @@ static void ScalePlaneDown4(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN4_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(row_stride, 4) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    ScaleRowDown4 = filtering ? ScaleRowDown4Box_DSPR2 : ScaleRowDown4_DSPR2;
>-  }
>-#endif
> #if defined(HAS_SCALEROWDOWN4_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     ScaleRowDown4 =
>@@ -280,12 +258,12 @@ static void ScalePlaneDown4_16(int src_width,
>                                int dst_height,
>                                int src_stride,
>                                int dst_stride,
>-                               const uint16* src_ptr,
>-                               uint16* dst_ptr,
>+                               const uint16_t* src_ptr,
>+                               uint16_t* dst_ptr,
>                                enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown4)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                        uint16* dst_ptr, int dst_width) =
>+  void (*ScaleRowDown4)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                        uint16_t* dst_ptr, int dst_width) =
>       filtering ? ScaleRowDown4Box_16_C : ScaleRowDown4_16_C;
>   int row_stride = src_stride << 2;
>   (void)src_width;
>@@ -306,14 +284,6 @@ static void ScalePlaneDown4_16(int src_width,
>         filtering ? ScaleRowDown4Box_16_SSE2 : ScaleRowDown4_16_SSE2;
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN4_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(row_stride, 4) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    ScaleRowDown4 =
>-        filtering ? ScaleRowDown4Box_16_DSPR2 : ScaleRowDown4_16_DSPR2;
>-  }
>-#endif
> 
>   if (filtering == kFilterLinear) {
>     src_stride = 0;
>@@ -332,14 +302,14 @@ static void ScalePlaneDown34(int src_width,
>                              int dst_height,
>                              int src_stride,
>                              int dst_stride,
>-                             const uint8* src_ptr,
>-                             uint8* dst_ptr,
>+                             const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown34_0)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                           uint8* dst_ptr, int dst_width);
>-  void (*ScaleRowDown34_1)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                           uint8* dst_ptr, int dst_width);
>+  void (*ScaleRowDown34_0)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                           uint8_t* dst_ptr, int dst_width);
>+  void (*ScaleRowDown34_1)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                           uint8_t* dst_ptr, int dst_width);
>   const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
>   (void)src_width;
>   (void)src_height;
>@@ -411,19 +381,6 @@ static void ScalePlaneDown34(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN34_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && (dst_width % 24 == 0) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    if (!filtering) {
>-      ScaleRowDown34_0 = ScaleRowDown34_DSPR2;
>-      ScaleRowDown34_1 = ScaleRowDown34_DSPR2;
>-    } else {
>-      ScaleRowDown34_0 = ScaleRowDown34_0_Box_DSPR2;
>-      ScaleRowDown34_1 = ScaleRowDown34_1_Box_DSPR2;
>-    }
>-  }
>-#endif
> 
>   for (y = 0; y < dst_height - 2; y += 3) {
>     ScaleRowDown34_0(src_ptr, filter_stride, dst_ptr, dst_width);
>@@ -454,14 +411,14 @@ static void ScalePlaneDown34_16(int src_width,
>                                 int dst_height,
>                                 int src_stride,
>                                 int dst_stride,
>-                                const uint16* src_ptr,
>-                                uint16* dst_ptr,
>+                                const uint16_t* src_ptr,
>+                                uint16_t* dst_ptr,
>                                 enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown34_0)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                           uint16* dst_ptr, int dst_width);
>-  void (*ScaleRowDown34_1)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                           uint16* dst_ptr, int dst_width);
>+  void (*ScaleRowDown34_0)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                           uint16_t* dst_ptr, int dst_width);
>+  void (*ScaleRowDown34_1)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                           uint16_t* dst_ptr, int dst_width);
>   const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
>   (void)src_width;
>   (void)src_height;
>@@ -495,19 +452,6 @@ static void ScalePlaneDown34_16(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN34_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && (dst_width % 24 == 0) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    if (!filtering) {
>-      ScaleRowDown34_0 = ScaleRowDown34_16_DSPR2;
>-      ScaleRowDown34_1 = ScaleRowDown34_16_DSPR2;
>-    } else {
>-      ScaleRowDown34_0 = ScaleRowDown34_0_Box_16_DSPR2;
>-      ScaleRowDown34_1 = ScaleRowDown34_1_Box_16_DSPR2;
>-    }
>-  }
>-#endif
> 
>   for (y = 0; y < dst_height - 2; y += 3) {
>     ScaleRowDown34_0(src_ptr, filter_stride, dst_ptr, dst_width);
>@@ -553,14 +497,14 @@ static void ScalePlaneDown38(int src_width,
>                              int dst_height,
>                              int src_stride,
>                              int dst_stride,
>-                             const uint8* src_ptr,
>-                             uint8* dst_ptr,
>+                             const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr,
>                              enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown38_3)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                           uint8* dst_ptr, int dst_width);
>-  void (*ScaleRowDown38_2)(const uint8* src_ptr, ptrdiff_t src_stride,
>-                           uint8* dst_ptr, int dst_width);
>+  void (*ScaleRowDown38_3)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                           uint8_t* dst_ptr, int dst_width);
>+  void (*ScaleRowDown38_2)(const uint8_t* src_ptr, ptrdiff_t src_stride,
>+                           uint8_t* dst_ptr, int dst_width);
>   const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
>   assert(dst_width % 3 == 0);
>   (void)src_width;
>@@ -612,19 +556,6 @@ static void ScalePlaneDown38(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN38_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && (dst_width % 12 == 0) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    if (!filtering) {
>-      ScaleRowDown38_3 = ScaleRowDown38_DSPR2;
>-      ScaleRowDown38_2 = ScaleRowDown38_DSPR2;
>-    } else {
>-      ScaleRowDown38_3 = ScaleRowDown38_3_Box_DSPR2;
>-      ScaleRowDown38_2 = ScaleRowDown38_2_Box_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_SCALEROWDOWN38_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     if (!filtering) {
>@@ -675,14 +606,14 @@ static void ScalePlaneDown38_16(int src_width,
>                                 int dst_height,
>                                 int src_stride,
>                                 int dst_stride,
>-                                const uint16* src_ptr,
>-                                uint16* dst_ptr,
>+                                const uint16_t* src_ptr,
>+                                uint16_t* dst_ptr,
>                                 enum FilterMode filtering) {
>   int y;
>-  void (*ScaleRowDown38_3)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                           uint16* dst_ptr, int dst_width);
>-  void (*ScaleRowDown38_2)(const uint16* src_ptr, ptrdiff_t src_stride,
>-                           uint16* dst_ptr, int dst_width);
>+  void (*ScaleRowDown38_3)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                           uint16_t* dst_ptr, int dst_width);
>+  void (*ScaleRowDown38_2)(const uint16_t* src_ptr, ptrdiff_t src_stride,
>+                           uint16_t* dst_ptr, int dst_width);
>   const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
>   (void)src_width;
>   (void)src_height;
>@@ -716,19 +647,6 @@ static void ScalePlaneDown38_16(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_SCALEROWDOWN38_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && (dst_width % 12 == 0) &&
>-      IS_ALIGNED(src_ptr, 4) && IS_ALIGNED(src_stride, 4) &&
>-      IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) {
>-    if (!filtering) {
>-      ScaleRowDown38_3 = ScaleRowDown38_16_DSPR2;
>-      ScaleRowDown38_2 = ScaleRowDown38_16_DSPR2;
>-    } else {
>-      ScaleRowDown38_3 = ScaleRowDown38_3_Box_16_DSPR2;
>-      ScaleRowDown38_2 = ScaleRowDown38_2_Box_16_DSPR2;
>-    }
>-  }
>-#endif
> 
>   for (y = 0; y < dst_height - 2; y += 3) {
>     ScaleRowDown38_3(src_ptr, filter_stride, dst_ptr, dst_width);
>@@ -755,8 +673,8 @@ static void ScalePlaneDown38_16(int src_width,
> 
> #define MIN1(x) ((x) < 1 ? 1 : (x))
> 
>-static __inline uint32 SumPixels(int iboxwidth, const uint16* src_ptr) {
>-  uint32 sum = 0u;
>+static __inline uint32_t SumPixels(int iboxwidth, const uint16_t* src_ptr) {
>+  uint32_t sum = 0u;
>   int x;
>   assert(iboxwidth > 0);
>   for (x = 0; x < iboxwidth; ++x) {
>@@ -765,8 +683,8 @@ static __inline uint32 SumPixels(int iboxwidth, const uint16* src_ptr) {
>   return sum;
> }
> 
>-static __inline uint32 SumPixels_16(int iboxwidth, const uint32* src_ptr) {
>-  uint32 sum = 0u;
>+static __inline uint32_t SumPixels_16(int iboxwidth, const uint32_t* src_ptr) {
>+  uint32_t sum = 0u;
>   int x;
>   assert(iboxwidth > 0);
>   for (x = 0; x < iboxwidth; ++x) {
>@@ -779,8 +697,8 @@ static void ScaleAddCols2_C(int dst_width,
>                             int boxheight,
>                             int x,
>                             int dx,
>-                            const uint16* src_ptr,
>-                            uint8* dst_ptr) {
>+                            const uint16_t* src_ptr,
>+                            uint8_t* dst_ptr) {
>   int i;
>   int scaletbl[2];
>   int minboxwidth = dx >> 16;
>@@ -801,8 +719,8 @@ static void ScaleAddCols2_16_C(int dst_width,
>                                int boxheight,
>                                int x,
>                                int dx,
>-                               const uint32* src_ptr,
>-                               uint16* dst_ptr) {
>+                               const uint32_t* src_ptr,
>+                               uint16_t* dst_ptr) {
>   int i;
>   int scaletbl[2];
>   int minboxwidth = dx >> 16;
>@@ -823,8 +741,8 @@ static void ScaleAddCols0_C(int dst_width,
>                             int boxheight,
>                             int x,
>                             int dx,
>-                            const uint16* src_ptr,
>-                            uint8* dst_ptr) {
>+                            const uint16_t* src_ptr,
>+                            uint8_t* dst_ptr) {
>   int scaleval = 65536 / boxheight;
>   int i;
>   (void)dx;
>@@ -838,8 +756,8 @@ static void ScaleAddCols1_C(int dst_width,
>                             int boxheight,
>                             int x,
>                             int dx,
>-                            const uint16* src_ptr,
>-                            uint8* dst_ptr) {
>+                            const uint16_t* src_ptr,
>+                            uint8_t* dst_ptr) {
>   int boxwidth = MIN1(dx >> 16);
>   int scaleval = 65536 / (boxwidth * boxheight);
>   int i;
>@@ -854,8 +772,8 @@ static void ScaleAddCols1_16_C(int dst_width,
>                                int boxheight,
>                                int x,
>                                int dx,
>-                               const uint32* src_ptr,
>-                               uint16* dst_ptr) {
>+                               const uint32_t* src_ptr,
>+                               uint16_t* dst_ptr) {
>   int boxwidth = MIN1(dx >> 16);
>   int scaleval = 65536 / (boxwidth * boxheight);
>   int i;
>@@ -878,8 +796,8 @@ static void ScalePlaneBox(int src_width,
>                           int dst_height,
>                           int src_stride,
>                           int dst_stride,
>-                          const uint8* src_ptr,
>-                          uint8* dst_ptr) {
>+                          const uint8_t* src_ptr,
>+                          uint8_t* dst_ptr) {
>   int j, k;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>@@ -891,14 +809,14 @@ static void ScalePlaneBox(int src_width,
>              &dx, &dy);
>   src_width = Abs(src_width);
>   {
>-    // Allocate a row buffer of uint16.
>+    // Allocate a row buffer of uint16_t.
>     align_buffer_64(row16, src_width * 2);
>     void (*ScaleAddCols)(int dst_width, int boxheight, int x, int dx,
>-                         const uint16* src_ptr, uint8* dst_ptr) =
>+                         const uint16_t* src_ptr, uint8_t* dst_ptr) =
>         (dx & 0xffff) ? ScaleAddCols2_C
>                       : ((dx != 0x10000) ? ScaleAddCols1_C : ScaleAddCols0_C);
>-    void (*ScaleAddRow)(const uint8* src_ptr, uint16* dst_ptr, int src_width) =
>-        ScaleAddRow_C;
>+    void (*ScaleAddRow)(const uint8_t* src_ptr, uint16_t* dst_ptr,
>+                        int src_width) = ScaleAddRow_C;
> #if defined(HAS_SCALEADDROW_SSE2)
>     if (TestCpuFlag(kCpuHasSSE2)) {
>       ScaleAddRow = ScaleAddRow_Any_SSE2;
>@@ -931,19 +849,11 @@ static void ScalePlaneBox(int src_width,
>       }
>     }
> #endif
>-#if defined(HAS_SCALEADDROW_DSPR2)
>-    if (TestCpuFlag(kCpuHasDSPR2)) {
>-      ScaleAddRow = ScaleAddRow_Any_DSPR2;
>-      if (IS_ALIGNED(src_width, 16)) {
>-        ScaleAddRow = ScaleAddRow_DSPR2;
>-      }
>-    }
>-#endif
> 
>     for (j = 0; j < dst_height; ++j) {
>       int boxheight;
>       int iy = y >> 16;
>-      const uint8* src = src_ptr + iy * src_stride;
>+      const uint8_t* src = src_ptr + iy * src_stride;
>       y += dy;
>       if (y > max_y) {
>         y = max_y;
>@@ -951,10 +861,10 @@ static void ScalePlaneBox(int src_width,
>       boxheight = MIN1((y >> 16) - iy);
>       memset(row16, 0, src_width * 2);
>       for (k = 0; k < boxheight; ++k) {
>-        ScaleAddRow(src, (uint16*)(row16), src_width);
>+        ScaleAddRow(src, (uint16_t*)(row16), src_width);
>         src += src_stride;
>       }
>-      ScaleAddCols(dst_width, boxheight, x, dx, (uint16*)(row16), dst_ptr);
>+      ScaleAddCols(dst_width, boxheight, x, dx, (uint16_t*)(row16), dst_ptr);
>       dst_ptr += dst_stride;
>     }
>     free_aligned_buffer_64(row16);
>@@ -967,8 +877,8 @@ static void ScalePlaneBox_16(int src_width,
>                              int dst_height,
>                              int src_stride,
>                              int dst_stride,
>-                             const uint16* src_ptr,
>-                             uint16* dst_ptr) {
>+                             const uint16_t* src_ptr,
>+                             uint16_t* dst_ptr) {
>   int j, k;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>@@ -980,13 +890,13 @@ static void ScalePlaneBox_16(int src_width,
>              &dx, &dy);
>   src_width = Abs(src_width);
>   {
>-    // Allocate a row buffer of uint32.
>+    // Allocate a row buffer of uint32_t.
>     align_buffer_64(row32, src_width * 4);
>     void (*ScaleAddCols)(int dst_width, int boxheight, int x, int dx,
>-                         const uint32* src_ptr, uint16* dst_ptr) =
>+                         const uint32_t* src_ptr, uint16_t* dst_ptr) =
>         (dx & 0xffff) ? ScaleAddCols2_16_C : ScaleAddCols1_16_C;
>-    void (*ScaleAddRow)(const uint16* src_ptr, uint32* dst_ptr, int src_width) =
>-        ScaleAddRow_16_C;
>+    void (*ScaleAddRow)(const uint16_t* src_ptr, uint32_t* dst_ptr,
>+                        int src_width) = ScaleAddRow_16_C;
> 
> #if defined(HAS_SCALEADDROW_16_SSE2)
>     if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(src_width, 16)) {
>@@ -997,7 +907,7 @@ static void ScalePlaneBox_16(int src_width,
>     for (j = 0; j < dst_height; ++j) {
>       int boxheight;
>       int iy = y >> 16;
>-      const uint16* src = src_ptr + iy * src_stride;
>+      const uint16_t* src = src_ptr + iy * src_stride;
>       y += dy;
>       if (y > max_y) {
>         y = max_y;
>@@ -1005,10 +915,10 @@ static void ScalePlaneBox_16(int src_width,
>       boxheight = MIN1((y >> 16) - iy);
>       memset(row32, 0, src_width * 4);
>       for (k = 0; k < boxheight; ++k) {
>-        ScaleAddRow(src, (uint32*)(row32), src_width);
>+        ScaleAddRow(src, (uint32_t*)(row32), src_width);
>         src += src_stride;
>       }
>-      ScaleAddCols(dst_width, boxheight, x, dx, (uint32*)(row32), dst_ptr);
>+      ScaleAddCols(dst_width, boxheight, x, dx, (uint32_t*)(row32), dst_ptr);
>       dst_ptr += dst_stride;
>     }
>     free_aligned_buffer_64(row32);
>@@ -1022,8 +932,8 @@ void ScalePlaneBilinearDown(int src_width,
>                             int dst_height,
>                             int src_stride,
>                             int dst_stride,
>-                            const uint8* src_ptr,
>-                            uint8* dst_ptr,
>+                            const uint8_t* src_ptr,
>+                            uint8_t* dst_ptr,
>                             enum FilterMode filtering) {
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>@@ -1036,10 +946,10 @@ void ScalePlaneBilinearDown(int src_width,
> 
>   const int max_y = (src_height - 1) << 16;
>   int j;
>-  void (*ScaleFilterCols)(uint8 * dst_ptr, const uint8* src_ptr, int dst_width,
>-                          int x, int dx) =
>+  void (*ScaleFilterCols)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>+                          int dst_width, int x, int dx) =
>       (src_width >= 32768) ? ScaleFilterCols64_C : ScaleFilterCols_C;
>-  void (*InterpolateRow)(uint8 * dst_ptr, const uint8* src_ptr,
>+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>   ScaleSlope(src_width, src_height, dst_width, dst_height, filtering, &x, &y,
>@@ -1070,14 +980,6 @@ void ScalePlaneBilinearDown(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    InterpolateRow = InterpolateRow_Any_DSPR2;
>-    if (IS_ALIGNED(src_width, 4)) {
>-      InterpolateRow = InterpolateRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -1114,7 +1016,7 @@ void ScalePlaneBilinearDown(int src_width,
> 
>   for (j = 0; j < dst_height; ++j) {
>     int yi = y >> 16;
>-    const uint8* src = src_ptr + yi * src_stride;
>+    const uint8_t* src = src_ptr + yi * src_stride;
>     if (filtering == kFilterLinear) {
>       ScaleFilterCols(dst_ptr, src, dst_width, x, dx);
>     } else {
>@@ -1137,8 +1039,8 @@ void ScalePlaneBilinearDown_16(int src_width,
>                                int dst_height,
>                                int src_stride,
>                                int dst_stride,
>-                               const uint16* src_ptr,
>-                               uint16* dst_ptr,
>+                               const uint16_t* src_ptr,
>+                               uint16_t* dst_ptr,
>                                enum FilterMode filtering) {
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>@@ -1151,10 +1053,10 @@ void ScalePlaneBilinearDown_16(int src_width,
> 
>   const int max_y = (src_height - 1) << 16;
>   int j;
>-  void (*ScaleFilterCols)(uint16 * dst_ptr, const uint16* src_ptr,
>+  void (*ScaleFilterCols)(uint16_t * dst_ptr, const uint16_t* src_ptr,
>                           int dst_width, int x, int dx) =
>       (src_width >= 32768) ? ScaleFilterCols64_16_C : ScaleFilterCols_16_C;
>-  void (*InterpolateRow)(uint16 * dst_ptr, const uint16* src_ptr,
>+  void (*InterpolateRow)(uint16_t * dst_ptr, const uint16_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_16_C;
>   ScaleSlope(src_width, src_height, dst_width, dst_height, filtering, &x, &y,
>@@ -1193,14 +1095,6 @@ void ScalePlaneBilinearDown_16(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    InterpolateRow = InterpolateRow_Any_16_DSPR2;
>-    if (IS_ALIGNED(src_width, 4)) {
>-      InterpolateRow = InterpolateRow_16_DSPR2;
>-    }
>-  }
>-#endif
> 
> #if defined(HAS_SCALEFILTERCOLS_16_SSSE3)
>   if (TestCpuFlag(kCpuHasSSSE3) && src_width < 32768) {
>@@ -1213,13 +1107,13 @@ void ScalePlaneBilinearDown_16(int src_width,
> 
>   for (j = 0; j < dst_height; ++j) {
>     int yi = y >> 16;
>-    const uint16* src = src_ptr + yi * src_stride;
>+    const uint16_t* src = src_ptr + yi * src_stride;
>     if (filtering == kFilterLinear) {
>       ScaleFilterCols(dst_ptr, src, dst_width, x, dx);
>     } else {
>       int yf = (y >> 8) & 255;
>-      InterpolateRow((uint16*)row, src, src_stride, src_width, yf);
>-      ScaleFilterCols(dst_ptr, (uint16*)row, dst_width, x, dx);
>+      InterpolateRow((uint16_t*)row, src, src_stride, src_width, yf);
>+      ScaleFilterCols(dst_ptr, (uint16_t*)row, dst_width, x, dx);
>     }
>     dst_ptr += dst_stride;
>     y += dy;
>@@ -1237,8 +1131,8 @@ void ScalePlaneBilinearUp(int src_width,
>                           int dst_height,
>                           int src_stride,
>                           int dst_stride,
>-                          const uint8* src_ptr,
>-                          uint8* dst_ptr,
>+                          const uint8_t* src_ptr,
>+                          uint8_t* dst_ptr,
>                           enum FilterMode filtering) {
>   int j;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>@@ -1247,11 +1141,11 @@ void ScalePlaneBilinearUp(int src_width,
>   int dx = 0;
>   int dy = 0;
>   const int max_y = (src_height - 1) << 16;
>-  void (*InterpolateRow)(uint8 * dst_ptr, const uint8* src_ptr,
>+  void (*InterpolateRow)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>-  void (*ScaleFilterCols)(uint8 * dst_ptr, const uint8* src_ptr, int dst_width,
>-                          int x, int dx) =
>+  void (*ScaleFilterCols)(uint8_t * dst_ptr, const uint8_t* src_ptr,
>+                          int dst_width, int x, int dx) =
>       filtering ? ScaleFilterCols_C : ScaleCols_C;
>   ScaleSlope(src_width, src_height, dst_width, dst_height, filtering, &x, &y,
>              &dx, &dy);
>@@ -1281,14 +1175,6 @@ void ScalePlaneBilinearUp(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    InterpolateRow = InterpolateRow_Any_DSPR2;
>-    if (IS_ALIGNED(dst_width, 4)) {
>-      InterpolateRow = InterpolateRow_DSPR2;
>-    }
>-  }
>-#endif
> 
>   if (filtering && src_width >= 32768) {
>     ScaleFilterCols = ScaleFilterCols64_C;
>@@ -1328,13 +1214,13 @@ void ScalePlaneBilinearUp(int src_width,
>   }
>   {
>     int yi = y >> 16;
>-    const uint8* src = src_ptr + yi * src_stride;
>+    const uint8_t* src = src_ptr + yi * src_stride;
> 
>     // Allocate 2 row buffers.
>     const int kRowSize = (dst_width + 31) & ~31;
>     align_buffer_64(row, kRowSize * 2);
> 
>-    uint8* rowptr = row;
>+    uint8_t* rowptr = row;
>     int rowstride = kRowSize;
>     int lasty = yi;
> 
>@@ -1380,8 +1266,8 @@ void ScalePlaneBilinearUp_16(int src_width,
>                              int dst_height,
>                              int src_stride,
>                              int dst_stride,
>-                             const uint16* src_ptr,
>-                             uint16* dst_ptr,
>+                             const uint16_t* src_ptr,
>+                             uint16_t* dst_ptr,
>                              enum FilterMode filtering) {
>   int j;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>@@ -1390,10 +1276,10 @@ void ScalePlaneBilinearUp_16(int src_width,
>   int dx = 0;
>   int dy = 0;
>   const int max_y = (src_height - 1) << 16;
>-  void (*InterpolateRow)(uint16 * dst_ptr, const uint16* src_ptr,
>+  void (*InterpolateRow)(uint16_t * dst_ptr, const uint16_t* src_ptr,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_16_C;
>-  void (*ScaleFilterCols)(uint16 * dst_ptr, const uint16* src_ptr,
>+  void (*ScaleFilterCols)(uint16_t * dst_ptr, const uint16_t* src_ptr,
>                           int dst_width, int x, int dx) =
>       filtering ? ScaleFilterCols_16_C : ScaleCols_16_C;
>   ScaleSlope(src_width, src_height, dst_width, dst_height, filtering, &x, &y,
>@@ -1432,14 +1318,6 @@ void ScalePlaneBilinearUp_16(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2)) {
>-    InterpolateRow = InterpolateRow_Any_16_DSPR2;
>-    if (IS_ALIGNED(dst_width, 4)) {
>-      InterpolateRow = InterpolateRow_16_DSPR2;
>-    }
>-  }
>-#endif
> 
>   if (filtering && src_width >= 32768) {
>     ScaleFilterCols = ScaleFilterCols64_16_C;
>@@ -1463,13 +1341,13 @@ void ScalePlaneBilinearUp_16(int src_width,
>   }
>   {
>     int yi = y >> 16;
>-    const uint16* src = src_ptr + yi * src_stride;
>+    const uint16_t* src = src_ptr + yi * src_stride;
> 
>     // Allocate 2 row buffers.
>     const int kRowSize = (dst_width + 31) & ~31;
>     align_buffer_64(row, kRowSize * 4);
> 
>-    uint16* rowptr = (uint16*)row;
>+    uint16_t* rowptr = (uint16_t*)row;
>     int rowstride = kRowSize;
>     int lasty = yi;
> 
>@@ -1520,11 +1398,11 @@ static void ScalePlaneSimple(int src_width,
>                              int dst_height,
>                              int src_stride,
>                              int dst_stride,
>-                             const uint8* src_ptr,
>-                             uint8* dst_ptr) {
>+                             const uint8_t* src_ptr,
>+                             uint8_t* dst_ptr) {
>   int i;
>-  void (*ScaleCols)(uint8 * dst_ptr, const uint8* src_ptr, int dst_width, int x,
>-                    int dx) = ScaleCols_C;
>+  void (*ScaleCols)(uint8_t * dst_ptr, const uint8_t* src_ptr, int dst_width,
>+                    int x, int dx) = ScaleCols_C;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>   int y = 0;
>@@ -1556,10 +1434,10 @@ static void ScalePlaneSimple_16(int src_width,
>                                 int dst_height,
>                                 int src_stride,
>                                 int dst_stride,
>-                                const uint16* src_ptr,
>-                                uint16* dst_ptr) {
>+                                const uint16_t* src_ptr,
>+                                uint16_t* dst_ptr) {
>   int i;
>-  void (*ScaleCols)(uint16 * dst_ptr, const uint16* src_ptr, int dst_width,
>+  void (*ScaleCols)(uint16_t * dst_ptr, const uint16_t* src_ptr, int dst_width,
>                     int x, int dx) = ScaleCols_16_C;
>   // Initial source x/y coordinate and step values as 16.16 fixed point.
>   int x = 0;
>@@ -1590,11 +1468,11 @@ static void ScalePlaneSimple_16(int src_width,
> // This function dispatches to a specialized scaler based on scale factor.
> 
> LIBYUV_API
>-void ScalePlane(const uint8* src,
>+void ScalePlane(const uint8_t* src,
>                 int src_stride,
>                 int src_width,
>                 int src_height,
>-                uint8* dst,
>+                uint8_t* dst,
>                 int dst_stride,
>                 int dst_width,
>                 int dst_height,
>@@ -1673,11 +1551,11 @@ void ScalePlane(const uint8* src,
> }
> 
> LIBYUV_API
>-void ScalePlane_16(const uint16* src,
>+void ScalePlane_16(const uint16_t* src,
>                    int src_stride,
>                    int src_width,
>                    int src_height,
>-                   uint16* dst,
>+                   uint16_t* dst,
>                    int dst_stride,
>                    int dst_width,
>                    int dst_height,
>@@ -1759,19 +1637,19 @@ void ScalePlane_16(const uint16* src,
> // This function in turn calls a scaling function for each plane.
> 
> LIBYUV_API
>-int I420Scale(const uint8* src_y,
>+int I420Scale(const uint8_t* src_y,
>               int src_stride_y,
>-              const uint8* src_u,
>+              const uint8_t* src_u,
>               int src_stride_u,
>-              const uint8* src_v,
>+              const uint8_t* src_v,
>               int src_stride_v,
>               int src_width,
>               int src_height,
>-              uint8* dst_y,
>+              uint8_t* dst_y,
>               int dst_stride_y,
>-              uint8* dst_u,
>+              uint8_t* dst_u,
>               int dst_stride_u,
>-              uint8* dst_v,
>+              uint8_t* dst_v,
>               int dst_stride_v,
>               int dst_width,
>               int dst_height,
>@@ -1796,19 +1674,19 @@ int I420Scale(const uint8* src_y,
> }
> 
> LIBYUV_API
>-int I420Scale_16(const uint16* src_y,
>+int I420Scale_16(const uint16_t* src_y,
>                  int src_stride_y,
>-                 const uint16* src_u,
>+                 const uint16_t* src_u,
>                  int src_stride_u,
>-                 const uint16* src_v,
>+                 const uint16_t* src_v,
>                  int src_stride_v,
>                  int src_width,
>                  int src_height,
>-                 uint16* dst_y,
>+                 uint16_t* dst_y,
>                  int dst_stride_y,
>-                 uint16* dst_u,
>+                 uint16_t* dst_u,
>                  int dst_stride_u,
>-                 uint16* dst_v,
>+                 uint16_t* dst_v,
>                  int dst_stride_v,
>                  int dst_width,
>                  int dst_height,
>@@ -1834,17 +1712,17 @@ int I420Scale_16(const uint16* src_y,
> 
> // Deprecated api
> LIBYUV_API
>-int Scale(const uint8* src_y,
>-          const uint8* src_u,
>-          const uint8* src_v,
>+int Scale(const uint8_t* src_y,
>+          const uint8_t* src_u,
>+          const uint8_t* src_v,
>           int src_stride_y,
>           int src_stride_u,
>           int src_stride_v,
>           int src_width,
>           int src_height,
>-          uint8* dst_y,
>-          uint8* dst_u,
>-          uint8* dst_v,
>+          uint8_t* dst_y,
>+          uint8_t* dst_u,
>+          uint8_t* dst_v,
>           int dst_stride_y,
>           int dst_stride_u,
>           int dst_stride_v,
>@@ -1857,43 +1735,6 @@ int Scale(const uint8* src_y,
>                    dst_height, interpolate ? kFilterBox : kFilterNone);
> }
> 
>-// Deprecated api
>-LIBYUV_API
>-int ScaleOffset(const uint8* src,
>-                int src_width,
>-                int src_height,
>-                uint8* dst,
>-                int dst_width,
>-                int dst_height,
>-                int dst_yoffset,
>-                LIBYUV_BOOL interpolate) {
>-  // Chroma requires offset to multiple of 2.
>-  int dst_yoffset_even = dst_yoffset & ~1;
>-  int src_halfwidth = SUBSAMPLE(src_width, 1, 1);
>-  int src_halfheight = SUBSAMPLE(src_height, 1, 1);
>-  int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1);
>-  int dst_halfheight = SUBSAMPLE(dst_height, 1, 1);
>-  int aheight = dst_height - dst_yoffset_even * 2;  // actual output height
>-  const uint8* src_y = src;
>-  const uint8* src_u = src + src_width * src_height;
>-  const uint8* src_v =
>-      src + src_width * src_height + src_halfwidth * src_halfheight;
>-  uint8* dst_y = dst + dst_yoffset_even * dst_width;
>-  uint8* dst_u =
>-      dst + dst_width * dst_height + (dst_yoffset_even >> 1) * dst_halfwidth;
>-  uint8* dst_v = dst + dst_width * dst_height + dst_halfwidth * dst_halfheight +
>-                 (dst_yoffset_even >> 1) * dst_halfwidth;
>-  if (!src || src_width <= 0 || src_height <= 0 || !dst || dst_width <= 0 ||
>-      dst_height <= 0 || dst_yoffset_even < 0 ||
>-      dst_yoffset_even >= dst_height) {
>-    return -1;
>-  }
>-  return I420Scale(src_y, src_width, src_u, src_halfwidth, src_v, src_halfwidth,
>-                   src_width, src_height, dst_y, dst_width, dst_u,
>-                   dst_halfwidth, dst_v, dst_halfwidth, dst_width, aheight,
>-                   interpolate ? kFilterBox : kFilterNone);
>-}
>-
> #ifdef __cplusplus
> }  // extern "C"
> }  // namespace libyuv
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_any.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_any.cc
>index c4d6626ab729a32124e5259b348082672ea47561..53ad136404995333e572364b70076334c5eb8d69 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_any.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_any.cc
>@@ -19,15 +19,15 @@ extern "C" {
> #endif
> 
> // Definition for ScaleFilterCols, ScaleARGBCols and ScaleARGBFilterCols
>-#define CANY(NAMEANY, TERP_SIMD, TERP_C, BPP, MASK)                        \
>-  void NAMEANY(uint8* dst_ptr, const uint8* src_ptr, int dst_width, int x, \
>-               int dx) {                                                   \
>-    int r = dst_width & MASK;                                              \
>-    int n = dst_width & ~MASK;                                             \
>-    if (n > 0) {                                                           \
>-      TERP_SIMD(dst_ptr, src_ptr, n, x, dx);                               \
>-    }                                                                      \
>-    TERP_C(dst_ptr + n * BPP, src_ptr, r, x + n * dx, dx);                 \
>+#define CANY(NAMEANY, TERP_SIMD, TERP_C, BPP, MASK)                            \
>+  void NAMEANY(uint8_t* dst_ptr, const uint8_t* src_ptr, int dst_width, int x, \
>+               int dx) {                                                       \
>+    int r = dst_width & MASK;                                                  \
>+    int n = dst_width & ~MASK;                                                 \
>+    if (n > 0) {                                                               \
>+      TERP_SIMD(dst_ptr, src_ptr, n, x, dx);                                   \
>+    }                                                                          \
>+    TERP_C(dst_ptr + n * BPP, src_ptr, r, x + n * dx, dx);                     \
>   }
> 
> #ifdef HAS_SCALEFILTERCOLS_NEON
>@@ -60,31 +60,31 @@ CANY(ScaleARGBFilterCols_Any_MSA,
> 
> // Fixed scale down.
> // Mask may be non-power of 2, so use MOD
>-#define SDANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK) \
>-  void NAMEANY(const uint8* src_ptr, ptrdiff_t src_stride, uint8* dst_ptr,   \
>-               int dst_width) {                                              \
>-    int r = (int)((unsigned int)dst_width % (MASK + 1)); /* NOLINT */        \
>-    int n = dst_width - r;                                                   \
>-    if (n > 0) {                                                             \
>-      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                    \
>-    }                                                                        \
>-    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                 \
>-                   dst_ptr + n * BPP, r);                                    \
>+#define SDANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK)   \
>+  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, \
>+               int dst_width) {                                                \
>+    int r = (int)((unsigned int)dst_width % (MASK + 1)); /* NOLINT */          \
>+    int n = dst_width - r;                                                     \
>+    if (n > 0) {                                                               \
>+      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                      \
>+    }                                                                          \
>+    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                   \
>+                   dst_ptr + n * BPP, r);                                      \
>   }
> 
> // Fixed scale down for odd source width.  Used by I420Blend subsampling.
> // Since dst_width is (width + 1) / 2, this function scales one less pixel
> // and copies the last pixel.
>-#define SDODD(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK) \
>-  void NAMEANY(const uint8* src_ptr, ptrdiff_t src_stride, uint8* dst_ptr,   \
>-               int dst_width) {                                              \
>-    int r = (int)((unsigned int)(dst_width - 1) % (MASK + 1)); /* NOLINT */  \
>-    int n = (dst_width - 1) - r;                                             \
>-    if (n > 0) {                                                             \
>-      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                    \
>-    }                                                                        \
>-    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                 \
>-                   dst_ptr + n * BPP, r + 1);                                \
>+#define SDODD(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK)   \
>+  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, \
>+               int dst_width) {                                                \
>+    int r = (int)((unsigned int)(dst_width - 1) % (MASK + 1)); /* NOLINT */    \
>+    int n = (dst_width - 1) - r;                                               \
>+    if (n > 0) {                                                               \
>+      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                      \
>+    }                                                                          \
>+    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                   \
>+                   dst_ptr + n * BPP, r + 1);                                  \
>   }
> 
> #ifdef HAS_SCALEROWDOWN2_SSSE3
>@@ -385,16 +385,16 @@ SDANY(ScaleARGBRowDown2Box_Any_MSA,
> #undef SDANY
> 
> // Scale down by even scale factor.
>-#define SDAANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, BPP, MASK)      \
>-  void NAMEANY(const uint8* src_ptr, ptrdiff_t src_stride, int src_stepx,  \
>-               uint8* dst_ptr, int dst_width) {                            \
>-    int r = dst_width & MASK;                                              \
>-    int n = dst_width & ~MASK;                                             \
>-    if (n > 0) {                                                           \
>-      SCALEROWDOWN_SIMD(src_ptr, src_stride, src_stepx, dst_ptr, n);       \
>-    }                                                                      \
>-    SCALEROWDOWN_C(src_ptr + (n * src_stepx) * BPP, src_stride, src_stepx, \
>-                   dst_ptr + n * BPP, r);                                  \
>+#define SDAANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, BPP, MASK)       \
>+  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, int src_stepx, \
>+               uint8_t* dst_ptr, int dst_width) {                           \
>+    int r = dst_width & MASK;                                               \
>+    int n = dst_width & ~MASK;                                              \
>+    if (n > 0) {                                                            \
>+      SCALEROWDOWN_SIMD(src_ptr, src_stride, src_stepx, dst_ptr, n);        \
>+    }                                                                       \
>+    SCALEROWDOWN_C(src_ptr + (n * src_stepx) * BPP, src_stride, src_stepx,  \
>+                   dst_ptr + n * BPP, r);                                   \
>   }
> 
> #ifdef HAS_SCALEARGBROWDOWNEVEN_SSE2
>@@ -435,13 +435,13 @@ SDAANY(ScaleARGBRowDownEvenBox_Any_MSA,
> #endif
> 
> // Add rows box filter scale down.
>-#define SAANY(NAMEANY, SCALEADDROW_SIMD, SCALEADDROW_C, MASK)          \
>-  void NAMEANY(const uint8* src_ptr, uint16* dst_ptr, int src_width) { \
>-    int n = src_width & ~MASK;                                         \
>-    if (n > 0) {                                                       \
>-      SCALEADDROW_SIMD(src_ptr, dst_ptr, n);                           \
>-    }                                                                  \
>-    SCALEADDROW_C(src_ptr + n, dst_ptr + n, src_width & MASK);         \
>+#define SAANY(NAMEANY, SCALEADDROW_SIMD, SCALEADDROW_C, MASK)              \
>+  void NAMEANY(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) { \
>+    int n = src_width & ~MASK;                                             \
>+    if (n > 0) {                                                           \
>+      SCALEADDROW_SIMD(src_ptr, dst_ptr, n);                               \
>+    }                                                                      \
>+    SCALEADDROW_C(src_ptr + n, dst_ptr + n, src_width & MASK);             \
>   }
> 
> #ifdef HAS_SCALEADDROW_SSE2
>@@ -456,9 +456,6 @@ SAANY(ScaleAddRow_Any_NEON, ScaleAddRow_NEON, ScaleAddRow_C, 15)
> #ifdef HAS_SCALEADDROW_MSA
> SAANY(ScaleAddRow_Any_MSA, ScaleAddRow_MSA, ScaleAddRow_C, 15)
> #endif
>-#ifdef HAS_SCALEADDROW_DSPR2
>-SAANY(ScaleAddRow_Any_DSPR2, ScaleAddRow_DSPR2, ScaleAddRow_C, 15)
>-#endif
> #undef SAANY
> 
> #ifdef __cplusplus
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_argb.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_argb.cc
>index c3ec7d6bb674e1e4da5a4be8a9242b4eaad3f5f1..53a22e8b41ea1273fc2ae15215dbf91aa409aec6 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_argb.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_argb.cc
>@@ -36,8 +36,8 @@ static void ScaleARGBDown2(int src_width,
>                            int dst_height,
>                            int src_stride,
>                            int dst_stride,
>-                           const uint8* src_argb,
>-                           uint8* dst_argb,
>+                           const uint8_t* src_argb,
>+                           uint8_t* dst_argb,
>                            int x,
>                            int dx,
>                            int y,
>@@ -45,8 +45,8 @@ static void ScaleARGBDown2(int src_width,
>                            enum FilterMode filtering) {
>   int j;
>   int row_stride = src_stride * (dy >> 16);
>-  void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
>-                            uint8* dst_argb, int dst_width) =
>+  void (*ScaleARGBRowDown2)(const uint8_t* src_argb, ptrdiff_t src_stride,
>+                            uint8_t* dst_argb, int dst_width) =
>       filtering == kFilterNone
>           ? ScaleARGBRowDown2_C
>           : (filtering == kFilterLinear ? ScaleARGBRowDown2Linear_C
>@@ -131,8 +131,8 @@ static void ScaleARGBDown4Box(int src_width,
>                               int dst_height,
>                               int src_stride,
>                               int dst_stride,
>-                              const uint8* src_argb,
>-                              uint8* dst_argb,
>+                              const uint8_t* src_argb,
>+                              uint8_t* dst_argb,
>                               int x,
>                               int dx,
>                               int y,
>@@ -142,8 +142,8 @@ static void ScaleARGBDown4Box(int src_width,
>   const int kRowSize = (dst_width * 2 * 4 + 31) & ~31;
>   align_buffer_64(row, kRowSize * 2);
>   int row_stride = src_stride * (dy >> 16);
>-  void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
>-                            uint8* dst_argb, int dst_width) =
>+  void (*ScaleARGBRowDown2)(const uint8_t* src_argb, ptrdiff_t src_stride,
>+                            uint8_t* dst_argb, int dst_width) =
>       ScaleARGBRowDown2Box_C;
>   // Advance to odd row, even column.
>   src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
>@@ -189,8 +189,8 @@ static void ScaleARGBDownEven(int src_width,
>                               int dst_height,
>                               int src_stride,
>                               int dst_stride,
>-                              const uint8* src_argb,
>-                              uint8* dst_argb,
>+                              const uint8_t* src_argb,
>+                              uint8_t* dst_argb,
>                               int x,
>                               int dx,
>                               int y,
>@@ -199,8 +199,8 @@ static void ScaleARGBDownEven(int src_width,
>   int j;
>   int col_step = dx >> 16;
>   int row_stride = (dy >> 16) * src_stride;
>-  void (*ScaleARGBRowDownEven)(const uint8* src_argb, ptrdiff_t src_stride,
>-                               int src_step, uint8* dst_argb, int dst_width) =
>+  void (*ScaleARGBRowDownEven)(const uint8_t* src_argb, ptrdiff_t src_stride,
>+                               int src_step, uint8_t* dst_argb, int dst_width) =
>       filtering ? ScaleARGBRowDownEvenBox_C : ScaleARGBRowDownEven_C;
>   (void)src_width;
>   (void)src_height;
>@@ -255,23 +255,23 @@ static void ScaleARGBBilinearDown(int src_width,
>                                   int dst_height,
>                                   int src_stride,
>                                   int dst_stride,
>-                                  const uint8* src_argb,
>-                                  uint8* dst_argb,
>+                                  const uint8_t* src_argb,
>+                                  uint8_t* dst_argb,
>                                   int x,
>                                   int dx,
>                                   int y,
>                                   int dy,
>                                   enum FilterMode filtering) {
>   int j;
>-  void (*InterpolateRow)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*InterpolateRow)(uint8_t * dst_argb, const uint8_t* src_argb,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>-  void (*ScaleARGBFilterCols)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*ScaleARGBFilterCols)(uint8_t * dst_argb, const uint8_t* src_argb,
>                               int dst_width, int x, int dx) =
>       (src_width >= 32768) ? ScaleARGBFilterCols64_C : ScaleARGBFilterCols_C;
>-  int64 xlast = x + (int64)(dst_width - 1) * dx;
>-  int64 xl = (dx >= 0) ? x : xlast;
>-  int64 xr = (dx >= 0) ? xlast : x;
>+  int64_t xlast = x + (int64_t)(dst_width - 1) * dx;
>+  int64_t xl = (dx >= 0) ? x : xlast;
>+  int64_t xr = (dx >= 0) ? xlast : x;
>   int clip_src_width;
>   xl = (xl >> 16) & ~3;    // Left edge aligned.
>   xr = (xr >> 16) + 1;     // Right most pixel used.  Bilinear uses 2 pixels.
>@@ -306,15 +306,6 @@ static void ScaleARGBBilinearDown(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_argb, 4) &&
>-      IS_ALIGNED(src_stride, 4)) {
>-    InterpolateRow = InterpolateRow_Any_DSPR2;
>-    if (IS_ALIGNED(clip_src_width, 4)) {
>-      InterpolateRow = InterpolateRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -355,7 +346,7 @@ static void ScaleARGBBilinearDown(int src_width,
>     }
>     for (j = 0; j < dst_height; ++j) {
>       int yi = y >> 16;
>-      const uint8* src = src_argb + yi * src_stride;
>+      const uint8_t* src = src_argb + yi * src_stride;
>       if (filtering == kFilterLinear) {
>         ScaleARGBFilterCols(dst_argb, src, dst_width, x, dx);
>       } else {
>@@ -380,18 +371,18 @@ static void ScaleARGBBilinearUp(int src_width,
>                                 int dst_height,
>                                 int src_stride,
>                                 int dst_stride,
>-                                const uint8* src_argb,
>-                                uint8* dst_argb,
>+                                const uint8_t* src_argb,
>+                                uint8_t* dst_argb,
>                                 int x,
>                                 int dx,
>                                 int y,
>                                 int dy,
>                                 enum FilterMode filtering) {
>   int j;
>-  void (*InterpolateRow)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*InterpolateRow)(uint8_t * dst_argb, const uint8_t* src_argb,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>-  void (*ScaleARGBFilterCols)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*ScaleARGBFilterCols)(uint8_t * dst_argb, const uint8_t* src_argb,
>                               int dst_width, int x, int dx) =
>       filtering ? ScaleARGBFilterCols_C : ScaleARGBCols_C;
>   const int max_y = (src_height - 1) << 16;
>@@ -419,12 +410,6 @@ static void ScaleARGBBilinearUp(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(dst_argb, 4) &&
>-      IS_ALIGNED(dst_stride, 4)) {
>-    InterpolateRow = InterpolateRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -494,13 +479,13 @@ static void ScaleARGBBilinearUp(int src_width,
> 
>   {
>     int yi = y >> 16;
>-    const uint8* src = src_argb + yi * src_stride;
>+    const uint8_t* src = src_argb + yi * src_stride;
> 
>     // Allocate 2 rows of ARGB.
>     const int kRowSize = (dst_width * 4 + 31) & ~31;
>     align_buffer_64(row, kRowSize * 2);
> 
>-    uint8* rowptr = row;
>+    uint8_t* rowptr = row;
>     int rowstride = kRowSize;
>     int lasty = yi;
> 
>@@ -550,18 +535,18 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>                                      int src_stride_u,
>                                      int src_stride_v,
>                                      int dst_stride_argb,
>-                                     const uint8* src_y,
>-                                     const uint8* src_u,
>-                                     const uint8* src_v,
>-                                     uint8* dst_argb,
>+                                     const uint8_t* src_y,
>+                                     const uint8_t* src_u,
>+                                     const uint8_t* src_v,
>+                                     uint8_t* dst_argb,
>                                      int x,
>                                      int dx,
>                                      int y,
>                                      int dy,
>                                      enum FilterMode filtering) {
>   int j;
>-  void (*I422ToARGBRow)(const uint8* y_buf, const uint8* u_buf,
>-                        const uint8* v_buf, uint8* rgb_buf, int width) =
>+  void (*I422ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
>+                        const uint8_t* v_buf, uint8_t* rgb_buf, int width) =
>       I422ToARGBRow_C;
> #if defined(HAS_I422TOARGBROW_SSSE3)
>   if (TestCpuFlag(kCpuHasSSSE3)) {
>@@ -587,15 +572,6 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_I422TOARGBROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_width, 4) &&
>-      IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
>-      IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
>-      IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
>-      IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
>-    I422ToARGBRow = I422ToARGBRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_I422TOARGBROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     I422ToARGBRow = I422ToARGBRow_Any_MSA;
>@@ -605,7 +581,7 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>   }
> #endif
> 
>-  void (*InterpolateRow)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*InterpolateRow)(uint8_t * dst_argb, const uint8_t* src_argb,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
> #if defined(HAS_INTERPOLATEROW_SSSE3)
>@@ -632,12 +608,6 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(dst_argb, 4) &&
>-      IS_ALIGNED(dst_stride_argb, 4)) {
>-    InterpolateRow = InterpolateRow_DSPR2;
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -647,7 +617,7 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>   }
> #endif
> 
>-  void (*ScaleARGBFilterCols)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*ScaleARGBFilterCols)(uint8_t * dst_argb, const uint8_t* src_argb,
>                               int dst_width, int x, int dx) =
>       filtering ? ScaleARGBFilterCols_C : ScaleARGBCols_C;
>   if (src_width >= 32768) {
>@@ -712,9 +682,9 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>   const int kYShift = 1;  // Shift Y by 1 to convert Y plane to UV coordinate.
>   int yi = y >> 16;
>   int uv_yi = yi >> kYShift;
>-  const uint8* src_row_y = src_y + yi * src_stride_y;
>-  const uint8* src_row_u = src_u + uv_yi * src_stride_u;
>-  const uint8* src_row_v = src_v + uv_yi * src_stride_v;
>+  const uint8_t* src_row_y = src_y + yi * src_stride_y;
>+  const uint8_t* src_row_u = src_u + uv_yi * src_stride_u;
>+  const uint8_t* src_row_v = src_v + uv_yi * src_stride_v;
> 
>   // Allocate 2 rows of ARGB.
>   const int kRowSize = (dst_width * 4 + 31) & ~31;
>@@ -723,7 +693,7 @@ static void ScaleYUVToARGBBilinearUp(int src_width,
>   // Allocate 1 row of ARGB for source conversion.
>   align_buffer_64(argb_row, src_width * 4);
> 
>-  uint8* rowptr = row;
>+  uint8_t* rowptr = row;
>   int rowstride = kRowSize;
>   int lasty = yi;
> 
>@@ -795,15 +765,15 @@ static void ScaleARGBSimple(int src_width,
>                             int dst_height,
>                             int src_stride,
>                             int dst_stride,
>-                            const uint8* src_argb,
>-                            uint8* dst_argb,
>+                            const uint8_t* src_argb,
>+                            uint8_t* dst_argb,
>                             int x,
>                             int dx,
>                             int y,
>                             int dy) {
>   int j;
>-  void (*ScaleARGBCols)(uint8 * dst_argb, const uint8* src_argb, int dst_width,
>-                        int x, int dx) =
>+  void (*ScaleARGBCols)(uint8_t * dst_argb, const uint8_t* src_argb,
>+                        int dst_width, int x, int dx) =
>       (src_width >= 32768) ? ScaleARGBCols64_C : ScaleARGBCols_C;
>   (void)src_height;
> #if defined(HAS_SCALEARGBCOLS_SSE2)
>@@ -847,11 +817,11 @@ static void ScaleARGBSimple(int src_width,
> // ScaleARGB a ARGB.
> // This function in turn calls a scaling function
> // suitable for handling the desired resolutions.
>-static void ScaleARGB(const uint8* src,
>+static void ScaleARGB(const uint8_t* src,
>                       int src_stride,
>                       int src_width,
>                       int src_height,
>-                      uint8* dst,
>+                      uint8_t* dst,
>                       int dst_stride,
>                       int dst_width,
>                       int dst_height,
>@@ -880,13 +850,13 @@ static void ScaleARGB(const uint8* src,
>              &dx, &dy);
>   src_width = Abs(src_width);
>   if (clip_x) {
>-    int64 clipf = (int64)(clip_x)*dx;
>+    int64_t clipf = (int64_t)(clip_x)*dx;
>     x += (clipf & 0xffff);
>     src += (clipf >> 16) * 4;
>     dst += clip_x * 4;
>   }
>   if (clip_y) {
>-    int64 clipf = (int64)(clip_y)*dy;
>+    int64_t clipf = (int64_t)(clip_y)*dy;
>     y += (clipf & 0xffff);
>     src += (clipf >> 16) * src_stride;
>     dst += clip_y * dst_stride;
>@@ -952,11 +922,11 @@ static void ScaleARGB(const uint8* src,
> }
> 
> LIBYUV_API
>-int ARGBScaleClip(const uint8* src_argb,
>+int ARGBScaleClip(const uint8_t* src_argb,
>                   int src_stride_argb,
>                   int src_width,
>                   int src_height,
>-                  uint8* dst_argb,
>+                  uint8_t* dst_argb,
>                   int dst_stride_argb,
>                   int dst_width,
>                   int dst_height,
>@@ -980,11 +950,11 @@ int ARGBScaleClip(const uint8* src_argb,
> 
> // Scale an ARGB image.
> LIBYUV_API
>-int ARGBScale(const uint8* src_argb,
>+int ARGBScale(const uint8_t* src_argb,
>               int src_stride_argb,
>               int src_width,
>               int src_height,
>-              uint8* dst_argb,
>+              uint8_t* dst_argb,
>               int dst_stride_argb,
>               int dst_width,
>               int dst_height,
>@@ -1001,18 +971,18 @@ int ARGBScale(const uint8* src_argb,
> 
> // Scale with YUV conversion to ARGB and clipping.
> LIBYUV_API
>-int YUVToARGBScaleClip(const uint8* src_y,
>+int YUVToARGBScaleClip(const uint8_t* src_y,
>                        int src_stride_y,
>-                       const uint8* src_u,
>+                       const uint8_t* src_u,
>                        int src_stride_u,
>-                       const uint8* src_v,
>+                       const uint8_t* src_v,
>                        int src_stride_v,
>-                       uint32 src_fourcc,
>+                       uint32_t src_fourcc,
>                        int src_width,
>                        int src_height,
>-                       uint8* dst_argb,
>+                       uint8_t* dst_argb,
>                        int dst_stride_argb,
>-                       uint32 dst_fourcc,
>+                       uint32_t dst_fourcc,
>                        int dst_width,
>                        int dst_height,
>                        int clip_x,
>@@ -1020,7 +990,7 @@ int YUVToARGBScaleClip(const uint8* src_y,
>                        int clip_width,
>                        int clip_height,
>                        enum FilterMode filtering) {
>-  uint8* argb_buffer = (uint8*)malloc(src_width * src_height * 4);
>+  uint8_t* argb_buffer = (uint8_t*)malloc(src_width * src_height * 4);
>   int r;
>   (void)src_fourcc;  // TODO(fbarchard): implement and/or assert.
>   (void)dst_fourcc;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_common.cc
>index fefb027bf7672cd2e8459d542b10c717819bf9c1..b28d7da41fce9b6230aa3ccf6c110bdebe072e10 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_common.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_common.cc
>@@ -28,9 +28,9 @@ static __inline int Abs(int v) {
> }
> 
> // CPU agnostic row functions
>-void ScaleRowDown2_C(const uint8* src_ptr,
>+void ScaleRowDown2_C(const uint8_t* src_ptr,
>                      ptrdiff_t src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -45,9 +45,9 @@ void ScaleRowDown2_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown2_16_C(const uint16* src_ptr,
>+void ScaleRowDown2_16_C(const uint16_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint16* dst,
>+                        uint16_t* dst,
>                         int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -62,11 +62,11 @@ void ScaleRowDown2_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleRowDown2Linear_C(const uint8* src_ptr,
>+void ScaleRowDown2Linear_C(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_width) {
>-  const uint8* s = src_ptr;
>+  const uint8_t* s = src_ptr;
>   int x;
>   (void)src_stride;
>   for (x = 0; x < dst_width - 1; x += 2) {
>@@ -80,11 +80,11 @@ void ScaleRowDown2Linear_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown2Linear_16_C(const uint16* src_ptr,
>+void ScaleRowDown2Linear_16_C(const uint16_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint16* dst,
>+                              uint16_t* dst,
>                               int dst_width) {
>-  const uint16* s = src_ptr;
>+  const uint16_t* s = src_ptr;
>   int x;
>   (void)src_stride;
>   for (x = 0; x < dst_width - 1; x += 2) {
>@@ -98,12 +98,12 @@ void ScaleRowDown2Linear_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleRowDown2Box_C(const uint8* src_ptr,
>+void ScaleRowDown2Box_C(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   for (x = 0; x < dst_width - 1; x += 2) {
>     dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
>@@ -117,12 +117,12 @@ void ScaleRowDown2Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown2Box_Odd_C(const uint8* src_ptr,
>+void ScaleRowDown2Box_Odd_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   dst_width -= 1;
>   for (x = 0; x < dst_width - 1; x += 2) {
>@@ -141,12 +141,12 @@ void ScaleRowDown2Box_Odd_C(const uint8* src_ptr,
>   dst[0] = (s[0] + t[0] + 1) >> 1;
> }
> 
>-void ScaleRowDown2Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown2Box_16_C(const uint16_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint16* dst,
>+                           uint16_t* dst,
>                            int dst_width) {
>-  const uint16* s = src_ptr;
>-  const uint16* t = src_ptr + src_stride;
>+  const uint16_t* s = src_ptr;
>+  const uint16_t* t = src_ptr + src_stride;
>   int x;
>   for (x = 0; x < dst_width - 1; x += 2) {
>     dst[0] = (s[0] + s[1] + t[0] + t[1] + 2) >> 2;
>@@ -160,9 +160,9 @@ void ScaleRowDown2Box_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleRowDown4_C(const uint8* src_ptr,
>+void ScaleRowDown4_C(const uint8_t* src_ptr,
>                      ptrdiff_t src_stride,
>-                     uint8* dst,
>+                     uint8_t* dst,
>                      int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -177,9 +177,9 @@ void ScaleRowDown4_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown4_16_C(const uint16* src_ptr,
>+void ScaleRowDown4_16_C(const uint16_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint16* dst,
>+                        uint16_t* dst,
>                         int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -194,9 +194,9 @@ void ScaleRowDown4_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleRowDown4Box_C(const uint8* src_ptr,
>+void ScaleRowDown4Box_C(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width) {
>   intptr_t stride = src_stride;
>   int x;
>@@ -232,9 +232,9 @@ void ScaleRowDown4Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown4Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown4Box_16_C(const uint16_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint16* dst,
>+                           uint16_t* dst,
>                            int dst_width) {
>   intptr_t stride = src_stride;
>   int x;
>@@ -270,9 +270,9 @@ void ScaleRowDown4Box_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_C(const uint8* src_ptr,
>+void ScaleRowDown34_C(const uint8_t* src_ptr,
>                       ptrdiff_t src_stride,
>-                      uint8* dst,
>+                      uint8_t* dst,
>                       int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -286,9 +286,9 @@ void ScaleRowDown34_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_16_C(const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint16* dst,
>+                         uint16_t* dst,
>                          int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -303,21 +303,21 @@ void ScaleRowDown34_16_C(const uint16* src_ptr,
> }
> 
> // Filter rows 0 and 1 together, 3 : 1
>-void ScaleRowDown34_0_Box_C(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* d,
>+                            uint8_t* d,
>                             int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   assert((dst_width % 3 == 0) && (dst_width > 0));
>   for (x = 0; x < dst_width; x += 3) {
>-    uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>-    uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>-    uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>-    uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>-    uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>-    uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>+    uint8_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>+    uint8_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>+    uint8_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>+    uint8_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>+    uint8_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>+    uint8_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>     d[0] = (a0 * 3 + b0 + 2) >> 2;
>     d[1] = (a1 * 3 + b1 + 2) >> 2;
>     d[2] = (a2 * 3 + b2 + 2) >> 2;
>@@ -327,21 +327,21 @@ void ScaleRowDown34_0_Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_0_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_0_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* d,
>+                               uint16_t* d,
>                                int dst_width) {
>-  const uint16* s = src_ptr;
>-  const uint16* t = src_ptr + src_stride;
>+  const uint16_t* s = src_ptr;
>+  const uint16_t* t = src_ptr + src_stride;
>   int x;
>   assert((dst_width % 3 == 0) && (dst_width > 0));
>   for (x = 0; x < dst_width; x += 3) {
>-    uint16 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>-    uint16 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>-    uint16 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>-    uint16 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>-    uint16 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>-    uint16 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>+    uint16_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>+    uint16_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>+    uint16_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>+    uint16_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>+    uint16_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>+    uint16_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>     d[0] = (a0 * 3 + b0 + 2) >> 2;
>     d[1] = (a1 * 3 + b1 + 2) >> 2;
>     d[2] = (a2 * 3 + b2 + 2) >> 2;
>@@ -352,21 +352,21 @@ void ScaleRowDown34_0_Box_16_C(const uint16* src_ptr,
> }
> 
> // Filter rows 1 and 2 together, 1 : 1
>-void ScaleRowDown34_1_Box_C(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* d,
>+                            uint8_t* d,
>                             int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   assert((dst_width % 3 == 0) && (dst_width > 0));
>   for (x = 0; x < dst_width; x += 3) {
>-    uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>-    uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>-    uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>-    uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>-    uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>-    uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>+    uint8_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>+    uint8_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>+    uint8_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>+    uint8_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>+    uint8_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>+    uint8_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>     d[0] = (a0 + b0 + 1) >> 1;
>     d[1] = (a1 + b1 + 1) >> 1;
>     d[2] = (a2 + b2 + 1) >> 1;
>@@ -376,21 +376,21 @@ void ScaleRowDown34_1_Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_1_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown34_1_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* d,
>+                               uint16_t* d,
>                                int dst_width) {
>-  const uint16* s = src_ptr;
>-  const uint16* t = src_ptr + src_stride;
>+  const uint16_t* s = src_ptr;
>+  const uint16_t* t = src_ptr + src_stride;
>   int x;
>   assert((dst_width % 3 == 0) && (dst_width > 0));
>   for (x = 0; x < dst_width; x += 3) {
>-    uint16 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>-    uint16 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>-    uint16 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>-    uint16 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>-    uint16 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>-    uint16 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>+    uint16_t a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2;
>+    uint16_t a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1;
>+    uint16_t a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2;
>+    uint16_t b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2;
>+    uint16_t b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1;
>+    uint16_t b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2;
>     d[0] = (a0 + b0 + 1) >> 1;
>     d[1] = (a1 + b1 + 1) >> 1;
>     d[2] = (a2 + b2 + 1) >> 1;
>@@ -401,8 +401,8 @@ void ScaleRowDown34_1_Box_16_C(const uint16* src_ptr,
> }
> 
> // Scales a single row of pixels using point sampling.
>-void ScaleCols_C(uint8* dst_ptr,
>-                 const uint8* src_ptr,
>+void ScaleCols_C(uint8_t* dst_ptr,
>+                 const uint8_t* src_ptr,
>                  int dst_width,
>                  int x,
>                  int dx) {
>@@ -419,8 +419,8 @@ void ScaleCols_C(uint8* dst_ptr,
>   }
> }
> 
>-void ScaleCols_16_C(uint16* dst_ptr,
>-                    const uint16* src_ptr,
>+void ScaleCols_16_C(uint16_t* dst_ptr,
>+                    const uint16_t* src_ptr,
>                     int dst_width,
>                     int x,
>                     int dx) {
>@@ -438,8 +438,8 @@ void ScaleCols_16_C(uint16* dst_ptr,
> }
> 
> // Scales a single row of pixels up by 2x using point sampling.
>-void ScaleColsUp2_C(uint8* dst_ptr,
>-                    const uint8* src_ptr,
>+void ScaleColsUp2_C(uint8_t* dst_ptr,
>+                    const uint8_t* src_ptr,
>                     int dst_width,
>                     int x,
>                     int dx) {
>@@ -456,8 +456,8 @@ void ScaleColsUp2_C(uint8* dst_ptr,
>   }
> }
> 
>-void ScaleColsUp2_16_C(uint16* dst_ptr,
>-                       const uint16* src_ptr,
>+void ScaleColsUp2_16_C(uint16_t* dst_ptr,
>+                       const uint16_t* src_ptr,
>                        int dst_width,
>                        int x,
>                        int dx) {
>@@ -477,15 +477,15 @@ void ScaleColsUp2_16_C(uint16* dst_ptr,
> // (1-f)a + fb can be replaced with a + f(b-a)
> #if defined(__arm__) || defined(__aarch64__)
> #define BLENDER(a, b, f) \
>-  (uint8)((int)(a) + ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
>+  (uint8_t)((int)(a) + ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
> #else
> // Intel uses 7 bit math with rounding.
> #define BLENDER(a, b, f) \
>-  (uint8)((int)(a) + (((int)((f) >> 9) * ((int)(b) - (int)(a)) + 0x40) >> 7))
>+  (uint8_t)((int)(a) + (((int)((f) >> 9) * ((int)(b) - (int)(a)) + 0x40) >> 7))
> #endif
> 
>-void ScaleFilterCols_C(uint8* dst_ptr,
>-                       const uint8* src_ptr,
>+void ScaleFilterCols_C(uint8_t* dst_ptr,
>+                       const uint8_t* src_ptr,
>                        int dst_width,
>                        int x,
>                        int dx) {
>@@ -511,15 +511,15 @@ void ScaleFilterCols_C(uint8* dst_ptr,
>   }
> }
> 
>-void ScaleFilterCols64_C(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void ScaleFilterCols64_C(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          int dst_width,
>                          int x32,
>                          int dx) {
>-  int64 x = (int64)(x32);
>+  int64_t x = (int64_t)(x32);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int a = src_ptr[xi];
>     int b = src_ptr[xi + 1];
>     dst_ptr[0] = BLENDER(a, b, x & 0xffff);
>@@ -532,7 +532,7 @@ void ScaleFilterCols64_C(uint8* dst_ptr,
>     dst_ptr += 2;
>   }
>   if (dst_width & 1) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int a = src_ptr[xi];
>     int b = src_ptr[xi + 1];
>     dst_ptr[0] = BLENDER(a, b, x & 0xffff);
>@@ -540,12 +540,12 @@ void ScaleFilterCols64_C(uint8* dst_ptr,
> }
> #undef BLENDER
> 
>-// Same as 8 bit arm blender but return is cast to uint16
>+// Same as 8 bit arm blender but return is cast to uint16_t
> #define BLENDER(a, b, f) \
>-  (uint16)((int)(a) + ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
>+  (uint16_t)((int)(a) + ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
> 
>-void ScaleFilterCols_16_C(uint16* dst_ptr,
>-                          const uint16* src_ptr,
>+void ScaleFilterCols_16_C(uint16_t* dst_ptr,
>+                          const uint16_t* src_ptr,
>                           int dst_width,
>                           int x,
>                           int dx) {
>@@ -571,15 +571,15 @@ void ScaleFilterCols_16_C(uint16* dst_ptr,
>   }
> }
> 
>-void ScaleFilterCols64_16_C(uint16* dst_ptr,
>-                            const uint16* src_ptr,
>+void ScaleFilterCols64_16_C(uint16_t* dst_ptr,
>+                            const uint16_t* src_ptr,
>                             int dst_width,
>                             int x32,
>                             int dx) {
>-  int64 x = (int64)(x32);
>+  int64_t x = (int64_t)(x32);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int a = src_ptr[xi];
>     int b = src_ptr[xi + 1];
>     dst_ptr[0] = BLENDER(a, b, x & 0xffff);
>@@ -592,7 +592,7 @@ void ScaleFilterCols64_16_C(uint16* dst_ptr,
>     dst_ptr += 2;
>   }
>   if (dst_width & 1) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int a = src_ptr[xi];
>     int b = src_ptr[xi + 1];
>     dst_ptr[0] = BLENDER(a, b, x & 0xffff);
>@@ -600,9 +600,9 @@ void ScaleFilterCols64_16_C(uint16* dst_ptr,
> }
> #undef BLENDER
> 
>-void ScaleRowDown38_C(const uint8* src_ptr,
>+void ScaleRowDown38_C(const uint8_t* src_ptr,
>                       ptrdiff_t src_stride,
>-                      uint8* dst,
>+                      uint8_t* dst,
>                       int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -616,9 +616,9 @@ void ScaleRowDown38_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown38_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_16_C(const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint16* dst,
>+                         uint16_t* dst,
>                          int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -633,9 +633,9 @@ void ScaleRowDown38_16_C(const uint16* src_ptr,
> }
> 
> // 8x3 -> 3x1
>-void ScaleRowDown38_3_Box_C(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width) {
>   intptr_t stride = src_stride;
>   int i;
>@@ -663,9 +663,9 @@ void ScaleRowDown38_3_Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown38_3_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_3_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* dst_ptr,
>+                               uint16_t* dst_ptr,
>                                int dst_width) {
>   intptr_t stride = src_stride;
>   int i;
>@@ -694,9 +694,9 @@ void ScaleRowDown38_3_Box_16_C(const uint16* src_ptr,
> }
> 
> // 8x2 -> 3x1
>-void ScaleRowDown38_2_Box_C(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_C(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width) {
>   intptr_t stride = src_stride;
>   int i;
>@@ -719,9 +719,9 @@ void ScaleRowDown38_2_Box_C(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown38_2_Box_16_C(const uint16* src_ptr,
>+void ScaleRowDown38_2_Box_16_C(const uint16_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint16* dst_ptr,
>+                               uint16_t* dst_ptr,
>                                int dst_width) {
>   intptr_t stride = src_stride;
>   int i;
>@@ -744,7 +744,7 @@ void ScaleRowDown38_2_Box_16_C(const uint16* src_ptr,
>   }
> }
> 
>-void ScaleAddRow_C(const uint8* src_ptr, uint16* dst_ptr, int src_width) {
>+void ScaleAddRow_C(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) {
>   int x;
>   assert(src_width > 0);
>   for (x = 0; x < src_width - 1; x += 2) {
>@@ -758,7 +758,9 @@ void ScaleAddRow_C(const uint8* src_ptr, uint16* dst_ptr, int src_width) {
>   }
> }
> 
>-void ScaleAddRow_16_C(const uint16* src_ptr, uint32* dst_ptr, int src_width) {
>+void ScaleAddRow_16_C(const uint16_t* src_ptr,
>+                      uint32_t* dst_ptr,
>+                      int src_width) {
>   int x;
>   assert(src_width > 0);
>   for (x = 0; x < src_width - 1; x += 2) {
>@@ -772,12 +774,12 @@ void ScaleAddRow_16_C(const uint16* src_ptr, uint32* dst_ptr, int src_width) {
>   }
> }
> 
>-void ScaleARGBRowDown2_C(const uint8* src_argb,
>+void ScaleARGBRowDown2_C(const uint8_t* src_argb,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_argb,
>+                         uint8_t* dst_argb,
>                          int dst_width) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int x;
>   (void)src_stride;
>   for (x = 0; x < dst_width - 1; x += 2) {
>@@ -791,9 +793,9 @@ void ScaleARGBRowDown2_C(const uint8* src_argb,
>   }
> }
> 
>-void ScaleARGBRowDown2Linear_C(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_C(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -807,9 +809,9 @@ void ScaleARGBRowDown2Linear_C(const uint8* src_argb,
>   }
> }
> 
>-void ScaleARGBRowDown2Box_C(const uint8* src_argb,
>+void ScaleARGBRowDown2Box_C(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width) {
>   int x;
>   for (x = 0; x < dst_width; ++x) {
>@@ -830,13 +832,13 @@ void ScaleARGBRowDown2Box_C(const uint8* src_argb,
>   }
> }
> 
>-void ScaleARGBRowDownEven_C(const uint8* src_argb,
>+void ScaleARGBRowDownEven_C(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>                             int src_stepx,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   (void)src_stride;
>   int x;
>   for (x = 0; x < dst_width - 1; x += 2) {
>@@ -850,10 +852,10 @@ void ScaleARGBRowDownEven_C(const uint8* src_argb,
>   }
> }
> 
>-void ScaleARGBRowDownEvenBox_C(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_C(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>   int x;
>   for (x = 0; x < dst_width; ++x) {
>@@ -875,13 +877,13 @@ void ScaleARGBRowDownEvenBox_C(const uint8* src_argb,
> }
> 
> // Scales a single row of pixels using point sampling.
>-void ScaleARGBCols_C(uint8* dst_argb,
>-                     const uint8* src_argb,
>+void ScaleARGBCols_C(uint8_t* dst_argb,
>+                     const uint8_t* src_argb,
>                      int dst_width,
>                      int x,
>                      int dx) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>     dst[0] = src[x >> 16];
>@@ -895,14 +897,14 @@ void ScaleARGBCols_C(uint8* dst_argb,
>   }
> }
> 
>-void ScaleARGBCols64_C(uint8* dst_argb,
>-                       const uint8* src_argb,
>+void ScaleARGBCols64_C(uint8_t* dst_argb,
>+                       const uint8_t* src_argb,
>                        int dst_width,
>                        int x32,
>                        int dx) {
>-  int64 x = (int64)(x32);
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  int64_t x = (int64_t)(x32);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>     dst[0] = src[x >> 16];
>@@ -917,13 +919,13 @@ void ScaleARGBCols64_C(uint8* dst_argb,
> }
> 
> // Scales a single row of pixels up by 2x using point sampling.
>-void ScaleARGBColsUp2_C(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBColsUp2_C(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   (void)x;
>   (void)dx;
>@@ -941,24 +943,24 @@ void ScaleARGBColsUp2_C(uint8* dst_argb,
> // Mimics SSSE3 blender
> #define BLENDER1(a, b, f) ((a) * (0x7f ^ f) + (b)*f) >> 7
> #define BLENDERC(a, b, f, s) \
>-  (uint32)(BLENDER1(((a) >> s) & 255, ((b) >> s) & 255, f) << s)
>+  (uint32_t)(BLENDER1(((a) >> s) & 255, ((b) >> s) & 255, f) << s)
> #define BLENDER(a, b, f)                                                 \
>   BLENDERC(a, b, f, 24) | BLENDERC(a, b, f, 16) | BLENDERC(a, b, f, 8) | \
>       BLENDERC(a, b, f, 0)
> 
>-void ScaleARGBFilterCols_C(uint8* dst_argb,
>-                           const uint8* src_argb,
>+void ScaleARGBFilterCols_C(uint8_t* dst_argb,
>+                           const uint8_t* src_argb,
>                            int dst_width,
>                            int x,
>                            int dx) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>     int xi = x >> 16;
>     int xf = (x >> 9) & 0x7f;
>-    uint32 a = src[xi];
>-    uint32 b = src[xi + 1];
>+    uint32_t a = src[xi];
>+    uint32_t b = src[xi + 1];
>     dst[0] = BLENDER(a, b, xf);
>     x += dx;
>     xi = x >> 16;
>@@ -972,26 +974,26 @@ void ScaleARGBFilterCols_C(uint8* dst_argb,
>   if (dst_width & 1) {
>     int xi = x >> 16;
>     int xf = (x >> 9) & 0x7f;
>-    uint32 a = src[xi];
>-    uint32 b = src[xi + 1];
>+    uint32_t a = src[xi];
>+    uint32_t b = src[xi + 1];
>     dst[0] = BLENDER(a, b, xf);
>   }
> }
> 
>-void ScaleARGBFilterCols64_C(uint8* dst_argb,
>-                             const uint8* src_argb,
>+void ScaleARGBFilterCols64_C(uint8_t* dst_argb,
>+                             const uint8_t* src_argb,
>                              int dst_width,
>                              int x32,
>                              int dx) {
>-  int64 x = (int64)(x32);
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  int64_t x = (int64_t)(x32);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   for (j = 0; j < dst_width - 1; j += 2) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int xf = (x >> 9) & 0x7f;
>-    uint32 a = src[xi];
>-    uint32 b = src[xi + 1];
>+    uint32_t a = src[xi];
>+    uint32_t b = src[xi + 1];
>     dst[0] = BLENDER(a, b, xf);
>     x += dx;
>     xi = x >> 16;
>@@ -1003,10 +1005,10 @@ void ScaleARGBFilterCols64_C(uint8* dst_argb,
>     dst += 2;
>   }
>   if (dst_width & 1) {
>-    int64 xi = x >> 16;
>+    int64_t xi = x >> 16;
>     int xf = (x >> 9) & 0x7f;
>-    uint32 a = src[xi];
>-    uint32 b = src[xi + 1];
>+    uint32_t a = src[xi];
>+    uint32_t b = src[xi + 1];
>     dst[0] = BLENDER(a, b, xf);
>   }
> }
>@@ -1020,8 +1022,8 @@ void ScalePlaneVertical(int src_height,
>                         int dst_height,
>                         int src_stride,
>                         int dst_stride,
>-                        const uint8* src_argb,
>-                        uint8* dst_argb,
>+                        const uint8_t* src_argb,
>+                        uint8_t* dst_argb,
>                         int x,
>                         int y,
>                         int dy,
>@@ -1029,7 +1031,7 @@ void ScalePlaneVertical(int src_height,
>                         enum FilterMode filtering) {
>   // TODO(fbarchard): Allow higher bpp.
>   int dst_width_bytes = dst_width * bpp;
>-  void (*InterpolateRow)(uint8 * dst_argb, const uint8* src_argb,
>+  void (*InterpolateRow)(uint8_t * dst_argb, const uint8_t* src_argb,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_C;
>   const int max_y = (src_height > 1) ? ((src_height - 1) << 16) - 1 : 0;
>@@ -1063,16 +1065,6 @@ void ScalePlaneVertical(int src_height,
>     }
>   }
> #endif
>-#if defined(HAS_INTERPOLATEROW_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_argb, 4) &&
>-      IS_ALIGNED(src_stride, 4) && IS_ALIGNED(dst_argb, 4) &&
>-      IS_ALIGNED(dst_stride, 4)) {
>-    InterpolateRow = InterpolateRow_Any_DSPR2;
>-    if (IS_ALIGNED(dst_width_bytes, 4)) {
>-      InterpolateRow = InterpolateRow_DSPR2;
>-    }
>-  }
>-#endif
> #if defined(HAS_INTERPOLATEROW_MSA)
>   if (TestCpuFlag(kCpuHasMSA)) {
>     InterpolateRow = InterpolateRow_Any_MSA;
>@@ -1100,8 +1092,8 @@ void ScalePlaneVertical_16(int src_height,
>                            int dst_height,
>                            int src_stride,
>                            int dst_stride,
>-                           const uint16* src_argb,
>-                           uint16* dst_argb,
>+                           const uint16_t* src_argb,
>+                           uint16_t* dst_argb,
>                            int x,
>                            int y,
>                            int dy,
>@@ -1109,7 +1101,7 @@ void ScalePlaneVertical_16(int src_height,
>                            enum FilterMode filtering) {
>   // TODO(fbarchard): Allow higher wpp.
>   int dst_width_words = dst_width * wpp;
>-  void (*InterpolateRow)(uint16 * dst_argb, const uint16* src_argb,
>+  void (*InterpolateRow)(uint16_t * dst_argb, const uint16_t* src_argb,
>                          ptrdiff_t src_stride, int dst_width,
>                          int source_y_fraction) = InterpolateRow_16_C;
>   const int max_y = (src_height > 1) ? ((src_height - 1) << 16) - 1 : 0;
>@@ -1150,16 +1142,6 @@ void ScalePlaneVertical_16(int src_height,
>       InterpolateRow = InterpolateRow_16_NEON;
>     }
>   }
>-#endif
>-#if defined(HAS_INTERPOLATEROW_16_DSPR2)
>-  if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(src_argb, 4) &&
>-      IS_ALIGNED(src_stride, 4) && IS_ALIGNED(dst_argb, 4) &&
>-      IS_ALIGNED(dst_stride, 4)) {
>-    InterpolateRow = InterpolateRow_Any_16_DSPR2;
>-    if (IS_ALIGNED(dst_width_bytes, 4)) {
>-      InterpolateRow = InterpolateRow_16_DSPR2;
>-    }
>-  }
> #endif
>   for (j = 0; j < dst_height; ++j) {
>     int yi;
>@@ -1222,12 +1204,12 @@ enum FilterMode ScaleFilterReduce(int src_width,
> 
> // Divide num by div and return as 16.16 fixed point result.
> int FixedDiv_C(int num, int div) {
>-  return (int)(((int64)(num) << 16) / div);
>+  return (int)(((int64_t)(num) << 16) / div);
> }
> 
> // Divide num by div and return as 16.16 fixed point result.
> int FixedDiv1_C(int num, int div) {
>-  return (int)((((int64)(num) << 16) - 0x00010001) / (div - 1));
>+  return (int)((((int64_t)(num) << 16) - 0x00010001) / (div - 1));
> }
> 
> #define CENTERSTART(dx, s) (dx < 0) ? -((-dx >> 1) + s) : ((dx >> 1) + s)
>@@ -1308,18 +1290,18 @@ void ScaleSlope(int src_width,
> 
> // Read 8x2 upsample with filtering and write 16x1.
> // actually reads an extra pixel, so 9x2.
>-void ScaleRowUp2_16_C(const uint16* src_ptr,
>+void ScaleRowUp2_16_C(const uint16_t* src_ptr,
>                       ptrdiff_t src_stride,
>-                      uint16* dst,
>+                      uint16_t* dst,
>                       int dst_width) {
>-  const uint16* src2 = src_ptr + src_stride;
>+  const uint16_t* src2 = src_ptr + src_stride;
> 
>   int x;
>   for (x = 0; x < dst_width - 1; x += 2) {
>-    uint16 p0 = src_ptr[0];
>-    uint16 p1 = src_ptr[1];
>-    uint16 p2 = src2[0];
>-    uint16 p3 = src2[1];
>+    uint16_t p0 = src_ptr[0];
>+    uint16_t p1 = src_ptr[1];
>+    uint16_t p2 = src2[0];
>+    uint16_t p3 = src2[1];
>     dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
>     dst[1] = (p0 * 3 + p1 * 9 + p2 + p3 * 3 + 8) >> 4;
>     ++src_ptr;
>@@ -1327,10 +1309,10 @@ void ScaleRowUp2_16_C(const uint16* src_ptr,
>     dst += 2;
>   }
>   if (dst_width & 1) {
>-    uint16 p0 = src_ptr[0];
>-    uint16 p1 = src_ptr[1];
>-    uint16 p2 = src2[0];
>-    uint16 p3 = src2[1];
>+    uint16_t p0 = src_ptr[0];
>+    uint16_t p1 = src_ptr[1];
>+    uint16_t p2 = src2[0];
>+    uint16_t p3 = src2[1];
>     dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
>   }
> }
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_gcc.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_gcc.cc
>index f0ac56fcb06f3ca13d24762dbfc3e54074d54ea3..312236d2df8eff9e9d68f3ae0ea3aad5c43a131d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_gcc.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_gcc.cc
>@@ -21,462 +21,458 @@ extern "C" {
>     (defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER)))
> 
> // Offsets for source bytes 0 to 9
>-static uvec8 kShuf0 = {0,   1,   3,   4,   5,   7,   8,   9,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf0 = {0,   1,   3,   4,   5,   7,   8,   9,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12.
>-static uvec8 kShuf1 = {3,   4,   5,   7,   8,   9,   11,  12,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf1 = {3,   4,   5,   7,   8,   9,   11,  12,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
>-static uvec8 kShuf2 = {5,   7,   8,   9,   11,  12,  13,  15,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf2 = {5,   7,   8,   9,   11,  12,  13,  15,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 0 to 10
>-static uvec8 kShuf01 = {0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10};
>+static const uvec8 kShuf01 = {0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10};
> 
> // Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13.
>-static uvec8 kShuf11 = {2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13};
>+static const uvec8 kShuf11 = {2, 3, 4, 5,  5,  6,  6,  7,
>+                              8, 9, 9, 10, 10, 11, 12, 13};
> 
> // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
>-static uvec8 kShuf21 = {5,  6,  6,  7,  8,  9,  9,  10,
>-                        10, 11, 12, 13, 13, 14, 14, 15};
>+static const uvec8 kShuf21 = {5,  6,  6,  7,  8,  9,  9,  10,
>+                              10, 11, 12, 13, 13, 14, 14, 15};
> 
> // Coefficients for source bytes 0 to 10
>-static uvec8 kMadd01 = {3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2};
>+static const uvec8 kMadd01 = {3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2};
> 
> // Coefficients for source bytes 10 to 21
>-static uvec8 kMadd11 = {1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1};
>+static const uvec8 kMadd11 = {1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1};
> 
> // Coefficients for source bytes 21 to 31
>-static uvec8 kMadd21 = {2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3};
>+static const uvec8 kMadd21 = {2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3};
> 
> // Coefficients for source bytes 21 to 31
>-static vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2};
>+static const vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2};
> 
>-static uvec8 kShuf38a = {0,   3,   6,   8,   11,  14,  128, 128,
>-                         128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf38a = {0,   3,   6,   8,   11,  14,  128, 128,
>+                               128, 128, 128, 128, 128, 128, 128, 128};
> 
>-static uvec8 kShuf38b = {128, 128, 128, 128, 128, 128, 0,   3,
>-                         6,   8,   11,  14,  128, 128, 128, 128};
>+static const uvec8 kShuf38b = {128, 128, 128, 128, 128, 128, 0,   3,
>+                               6,   8,   11,  14,  128, 128, 128, 128};
> 
> // Arrange words 0,3,6 into 0,1,2
>-static uvec8 kShufAc = {0,   1,   6,   7,   12,  13,  128, 128,
>-                        128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAc = {0,   1,   6,   7,   12,  13,  128, 128,
>+                              128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Arrange words 0,3,6 into 3,4,5
>-static uvec8 kShufAc3 = {128, 128, 128, 128, 128, 128, 0,   1,
>-                         6,   7,   12,  13,  128, 128, 128, 128};
>+static const uvec8 kShufAc3 = {128, 128, 128, 128, 128, 128, 0,   1,
>+                               6,   7,   12,  13,  128, 128, 128, 128};
> 
> // Scaling values for boxes of 3x3 and 2x3
>-static uvec16 kScaleAc33 = {65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9,
>-                            65536 / 9, 65536 / 6, 0,         0};
>+static const uvec16 kScaleAc33 = {65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9,
>+                                  65536 / 9, 65536 / 6, 0,         0};
> 
> // Arrange first value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb0 = {0,  128, 3,  128, 6,   128, 8,   128,
>-                         11, 128, 14, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb0 = {0,  128, 3,  128, 6,   128, 8,   128,
>+                               11, 128, 14, 128, 128, 128, 128, 128};
> 
> // Arrange second value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb1 = {1,  128, 4,  128, 7,   128, 9,   128,
>-                         12, 128, 15, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb1 = {1,  128, 4,  128, 7,   128, 9,   128,
>+                               12, 128, 15, 128, 128, 128, 128, 128};
> 
> // Arrange third value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb2 = {2,  128, 5,   128, 128, 128, 10,  128,
>-                         13, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb2 = {2,  128, 5,   128, 128, 128, 10,  128,
>+                               13, 128, 128, 128, 128, 128, 128, 128};
> 
> // Scaling values for boxes of 3x2 and 2x2
>-static uvec16 kScaleAb2 = {65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3,
>-                           65536 / 3, 65536 / 2, 0,         0};
>+static const uvec16 kScaleAb2 = {65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3,
>+                                 65536 / 3, 65536 / 2, 0,         0};
> 
> // GCC versions of row functions are verbatim conversions from Visual C.
> // Generated using gcc disassembly on Visual C object file:
> // objdump -D yuvscaler.obj >yuvscaler.txt
> 
>-void ScaleRowDown2_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2_SSSE3(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "psrlw     $0x8,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "psrlw     $0x8,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
>-void ScaleRowDown2Linear_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Linear_SSSE3(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    "pcmpeqb    %%xmm4,%%xmm4                  \n"
>-    "psrlw      $0xf,%%xmm4                    \n"
>-    "packuswb   %%xmm4,%%xmm4                  \n"
>-    "pxor       %%xmm5,%%xmm5                  \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10, 0) ",%%xmm1  \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pmaddubsw  %%xmm4,%%xmm0                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm1                  \n"
>-    "pavgw      %%xmm5,%%xmm0                  \n"
>-    "pavgw      %%xmm5,%%xmm1                  \n"
>-    "packuswb   %%xmm1,%%xmm0                  \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "pcmpeqb    %%xmm4,%%xmm4                  \n"
>+      "psrlw      $0xf,%%xmm4                    \n"
>+      "packuswb   %%xmm4,%%xmm4                  \n"
>+      "pxor       %%xmm5,%%xmm5                  \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pmaddubsw  %%xmm4,%%xmm0                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm1                  \n"
>+      "pavgw      %%xmm5,%%xmm0                  \n"
>+      "pavgw      %%xmm5,%%xmm1                  \n"
>+      "packuswb   %%xmm1,%%xmm0                  \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm4", "xmm5");
> }
> 
>-void ScaleRowDown2Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown2Box_SSSE3(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width) {
>-  asm volatile (
>-    "pcmpeqb    %%xmm4,%%xmm4                  \n"
>-    "psrlw      $0xf,%%xmm4                    \n"
>-    "packuswb   %%xmm4,%%xmm4                  \n"
>-    "pxor       %%xmm5,%%xmm5                  \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm2)           //  movdqu  (%0,%3,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,3,1,xmm3)           //  movdqu  0x10(%0,%3,1),%%xmm3
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pmaddubsw  %%xmm4,%%xmm0                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm1                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm2                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm3                  \n"
>-    "paddw      %%xmm2,%%xmm0                  \n"
>-    "paddw      %%xmm3,%%xmm1                  \n"
>-    "psrlw      $0x1,%%xmm0                    \n"
>-    "psrlw      $0x1,%%xmm1                    \n"
>-    "pavgw      %%xmm5,%%xmm0                  \n"
>-    "pavgw      %%xmm5,%%xmm1                  \n"
>-    "packuswb   %%xmm1,%%xmm0                  \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  : "r"((intptr_t)(src_stride))   // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+  asm volatile(
>+      "pcmpeqb    %%xmm4,%%xmm4                  \n"
>+      "psrlw      $0xf,%%xmm4                    \n"
>+      "packuswb   %%xmm4,%%xmm4                  \n"
>+      "pxor       %%xmm5,%%xmm5                  \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%3,1),%%xmm3            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pmaddubsw  %%xmm4,%%xmm0                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm1                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm2                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm3                  \n"
>+      "paddw      %%xmm2,%%xmm0                  \n"
>+      "paddw      %%xmm3,%%xmm1                  \n"
>+      "psrlw      $0x1,%%xmm0                    \n"
>+      "psrlw      $0x1,%%xmm1                    \n"
>+      "pavgw      %%xmm5,%%xmm0                  \n"
>+      "pavgw      %%xmm5,%%xmm1                  \n"
>+      "packuswb   %%xmm1,%%xmm0                  \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),               // %0
>+        "+r"(dst_ptr),               // %1
>+        "+r"(dst_width)              // %2
>+      : "r"((intptr_t)(src_stride))  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> 
> #ifdef HAS_SCALEROWDOWN2_AVX2
>-void ScaleRowDown2_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2_AVX2(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "sub        $0x20,%2                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpsrlw     $0x8,%%ymm1,%%ymm1             \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x20,%2                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
>-void ScaleRowDown2Linear_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Linear_AVX2(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst_ptr,
>+                              uint8_t* dst_ptr,
>                               int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>-    "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20, 0) ",%%ymm1 \n"
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpavgw     %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpavgw     %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "sub        $0x20,%2                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>+      "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpavgw     %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpavgw     %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x20,%2                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm4", "xmm5");
> }
> 
>-void ScaleRowDown2Box_AVX2(const uint8* src_ptr,
>+void ScaleRowDown2Box_AVX2(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width) {
>-  asm volatile (
>-    "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>-    "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    MEMOPREG(vmovdqu,0x00,0,3,1,ymm2)          //  vmovdqu  (%0,%3,1),%%ymm2
>-    MEMOPREG(vmovdqu,0x20,0,3,1,ymm3)          //  vmovdqu  0x20(%0,%3,1),%%ymm3
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vpsrlw     $0x1,%%ymm0,%%ymm0             \n"
>-    "vpsrlw     $0x1,%%ymm1,%%ymm1             \n"
>-    "vpavgw     %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpavgw     %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x20,1) ",%1          \n"
>-    "sub        $0x20,%2                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  : "r"((intptr_t)(src_stride))   // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+  asm volatile(
>+      "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>+      "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x00(%0,%3,1),%%ymm2           \n"
>+      "vmovdqu    0x20(%0,%3,1),%%ymm3           \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vpsrlw     $0x1,%%ymm0,%%ymm0             \n"
>+      "vpsrlw     $0x1,%%ymm1,%%ymm1             \n"
>+      "vpavgw     %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpavgw     %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "lea        0x20(%1),%1                    \n"
>+      "sub        $0x20,%2                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),               // %0
>+        "+r"(dst_ptr),               // %1
>+        "+r"(dst_width)              // %2
>+      : "r"((intptr_t)(src_stride))  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SCALEROWDOWN2_AVX2
> 
>-void ScaleRowDown4_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4_SSSE3(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    "pcmpeqb   %%xmm5,%%xmm5                   \n"
>-    "psrld     $0x18,%%xmm5                    \n"
>-    "pslld     $0x10,%%xmm5                    \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pand      %%xmm5,%%xmm0                   \n"
>-    "pand      %%xmm5,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm0                   \n"
>-    "psrlw     $0x8,%%xmm0                     \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm5"
>-  );
>+  asm volatile(
>+      "pcmpeqb   %%xmm5,%%xmm5                   \n"
>+      "psrld     $0x18,%%xmm5                    \n"
>+      "pslld     $0x10,%%xmm5                    \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pand      %%xmm5,%%xmm0                   \n"
>+      "pand      %%xmm5,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm0                   \n"
>+      "psrlw     $0x8,%%xmm0                     \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void ScaleRowDown4Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown4Box_SSSE3(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_ptr,
>+                            uint8_t* dst_ptr,
>                             int dst_width) {
>   intptr_t stridex3;
>-  asm volatile (
>-    "pcmpeqb    %%xmm4,%%xmm4                  \n"
>-    "psrlw      $0xf,%%xmm4                    \n"
>-    "movdqa     %%xmm4,%%xmm5                  \n"
>-    "packuswb   %%xmm4,%%xmm4                  \n"
>-    "psllw      $0x3,%%xmm5                    \n"
>-    "lea       " MEMLEA4(0x00,4,4,2) ",%3      \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x00,0,4,1,xmm2)           //  movdqu  (%0,%4,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,4,1,xmm3)           //  movdqu  0x10(%0,%4,1),%%xmm3
>-    "pmaddubsw  %%xmm4,%%xmm0                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm1                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm2                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm3                  \n"
>-    "paddw      %%xmm2,%%xmm0                  \n"
>-    "paddw      %%xmm3,%%xmm1                  \n"
>-    MEMOPREG(movdqu,0x00,0,4,2,xmm2)           //  movdqu  (%0,%4,2),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,4,2,xmm3)           //  movdqu  0x10(%0,%4,2),%%xmm3
>-    "pmaddubsw  %%xmm4,%%xmm2                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm3                  \n"
>-    "paddw      %%xmm2,%%xmm0                  \n"
>-    "paddw      %%xmm3,%%xmm1                  \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm2)           //  movdqu  (%0,%3,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,3,1,xmm3)           //  movdqu  0x10(%0,%3,1),%%xmm3
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pmaddubsw  %%xmm4,%%xmm2                  \n"
>-    "pmaddubsw  %%xmm4,%%xmm3                  \n"
>-    "paddw      %%xmm2,%%xmm0                  \n"
>-    "paddw      %%xmm3,%%xmm1                  \n"
>-    "phaddw     %%xmm1,%%xmm0                  \n"
>-    "paddw      %%xmm5,%%xmm0                  \n"
>-    "psrlw      $0x4,%%xmm0                    \n"
>-    "packuswb   %%xmm0,%%xmm0                  \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x8,1) ",%1            \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),     // %0
>-    "+r"(dst_ptr),     // %1
>-    "+r"(dst_width),   // %2
>-    "=&r"(stridex3)    // %3
>-  : "r"((intptr_t)(src_stride))    // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "pcmpeqb    %%xmm4,%%xmm4                  \n"
>+      "psrlw      $0xf,%%xmm4                    \n"
>+      "movdqa     %%xmm4,%%xmm5                  \n"
>+      "packuswb   %%xmm4,%%xmm4                  \n"
>+      "psllw      $0x3,%%xmm5                    \n"
>+      "lea       0x00(%4,%4,2),%3                \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x00(%0,%4,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%4,1),%%xmm3            \n"
>+      "pmaddubsw  %%xmm4,%%xmm0                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm1                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm2                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm3                  \n"
>+      "paddw      %%xmm2,%%xmm0                  \n"
>+      "paddw      %%xmm3,%%xmm1                  \n"
>+      "movdqu    0x00(%0,%4,2),%%xmm2            \n"
>+      "movdqu    0x10(%0,%4,2),%%xmm3            \n"
>+      "pmaddubsw  %%xmm4,%%xmm2                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm3                  \n"
>+      "paddw      %%xmm2,%%xmm0                  \n"
>+      "paddw      %%xmm3,%%xmm1                  \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%3,1),%%xmm3            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pmaddubsw  %%xmm4,%%xmm2                  \n"
>+      "pmaddubsw  %%xmm4,%%xmm3                  \n"
>+      "paddw      %%xmm2,%%xmm0                  \n"
>+      "paddw      %%xmm3,%%xmm1                  \n"
>+      "phaddw     %%xmm1,%%xmm0                  \n"
>+      "paddw      %%xmm5,%%xmm0                  \n"
>+      "psrlw      $0x4,%%xmm0                    \n"
>+      "packuswb   %%xmm0,%%xmm0                  \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "lea       0x8(%1),%1                      \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),               // %0
>+        "+r"(dst_ptr),               // %1
>+        "+r"(dst_width),             // %2
>+        "=&r"(stridex3)              // %3
>+      : "r"((intptr_t)(src_stride))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
> #ifdef HAS_SCALEROWDOWN4_AVX2
>-void ScaleRowDown4_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4_AVX2(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>-    "vpsrld     $0x18,%%ymm5,%%ymm5            \n"
>-    "vpslld     $0x10,%%ymm5,%%ymm5            \n"
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpand      %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpand      %%ymm5,%%ymm1,%%ymm1           \n"
>-    "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>-    "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%xmm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-    "sub        $0x10,%2                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm5"
>-  );
>+  asm volatile(
>+      "vpcmpeqb   %%ymm5,%%ymm5,%%ymm5           \n"
>+      "vpsrld     $0x18,%%ymm5,%%ymm5            \n"
>+      "vpslld     $0x10,%%ymm5,%%ymm5            \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpand      %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpand      %%ymm5,%%ymm1,%%ymm1           \n"
>+      "vpackuswb  %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpsrlw     $0x8,%%ymm0,%%ymm0             \n"
>+      "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%xmm0,(%1)                    \n"
>+      "lea        0x10(%1),%1                    \n"
>+      "sub        $0x10,%2                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm5");
> }
> 
>-void ScaleRowDown4Box_AVX2(const uint8* src_ptr,
>+void ScaleRowDown4Box_AVX2(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width) {
>-  asm volatile (
>-    "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>-    "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>-    "vpsllw     $0x3,%%ymm4,%%ymm5             \n"
>-    "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm0        \n"
>-    "vmovdqu    " MEMACCESS2(0x20,0) ",%%ymm1  \n"
>-    MEMOPREG(vmovdqu,0x00,0,3,1,ymm2)          //  vmovdqu  (%0,%3,1),%%ymm2
>-    MEMOPREG(vmovdqu,0x20,0,3,1,ymm3)          //  vmovdqu  0x20(%0,%3,1),%%ymm3
>-    "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>-    "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>-    MEMOPREG(vmovdqu,0x00,0,3,2,ymm2)          //  vmovdqu  (%0,%3,2),%%ymm2
>-    MEMOPREG(vmovdqu,0x20,0,3,2,ymm3)          //  vmovdqu  0x20(%0,%3,2),%%ymm3
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>-    MEMOPREG(vmovdqu,0x00,0,4,1,ymm2)          //  vmovdqu  (%0,%4,1),%%ymm2
>-    MEMOPREG(vmovdqu,0x20,0,4,1,ymm3)          //  vmovdqu  0x20(%0,%4,1),%%ymm3
>-    "lea        " MEMLEA(0x40,0) ",%0          \n"
>-    "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>-    "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>-    "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>-    "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>-    "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"
>-    "vpsrlw     $0x4,%%ymm0,%%ymm0             \n"
>-    "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>-    "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>-    "vmovdqu    %%xmm0," MEMACCESS(1) "        \n"
>-    "lea        " MEMLEA(0x10,1) ",%1          \n"
>-    "sub        $0x10,%2                       \n"
>-    "jg         1b                             \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  : "r"((intptr_t)(src_stride)),  // %3
>-    "r"((intptr_t)(src_stride * 3))   // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "vpcmpeqb   %%ymm4,%%ymm4,%%ymm4           \n"
>+      "vpsrlw     $0xf,%%ymm4,%%ymm4             \n"
>+      "vpsllw     $0x3,%%ymm4,%%ymm5             \n"
>+      "vpackuswb  %%ymm4,%%ymm4,%%ymm4           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm0                    \n"
>+      "vmovdqu    0x20(%0),%%ymm1                \n"
>+      "vmovdqu    0x00(%0,%3,1),%%ymm2           \n"
>+      "vmovdqu    0x20(%0,%3,1),%%ymm3           \n"
>+      "vpmaddubsw %%ymm4,%%ymm0,%%ymm0           \n"
>+      "vpmaddubsw %%ymm4,%%ymm1,%%ymm1           \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vmovdqu    0x00(%0,%3,2),%%ymm2           \n"
>+      "vmovdqu    0x20(%0,%3,2),%%ymm3           \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vmovdqu    0x00(%0,%4,1),%%ymm2           \n"
>+      "vmovdqu    0x20(%0,%4,1),%%ymm3           \n"
>+      "lea        0x40(%0),%0                    \n"
>+      "vpmaddubsw %%ymm4,%%ymm2,%%ymm2           \n"
>+      "vpmaddubsw %%ymm4,%%ymm3,%%ymm3           \n"
>+      "vpaddw     %%ymm2,%%ymm0,%%ymm0           \n"
>+      "vpaddw     %%ymm3,%%ymm1,%%ymm1           \n"
>+      "vphaddw    %%ymm1,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vpaddw     %%ymm5,%%ymm0,%%ymm0           \n"
>+      "vpsrlw     $0x4,%%ymm0,%%ymm0             \n"
>+      "vpackuswb  %%ymm0,%%ymm0,%%ymm0           \n"
>+      "vpermq     $0xd8,%%ymm0,%%ymm0            \n"
>+      "vmovdqu    %%xmm0,(%1)                    \n"
>+      "lea        0x10(%1),%1                    \n"
>+      "sub        $0x10,%2                       \n"
>+      "jg         1b                             \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),                   // %0
>+        "+r"(dst_ptr),                   // %1
>+        "+r"(dst_width)                  // %2
>+      : "r"((intptr_t)(src_stride)),     // %3
>+        "r"((intptr_t)(src_stride * 3))  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> #endif  // HAS_SCALEROWDOWN4_AVX2
> 
>-void ScaleRowDown34_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_SSSE3(const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>-                          uint8* dst_ptr,
>+                          uint8_t* dst_ptr,
>                           int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -488,33 +484,34 @@ void ScaleRowDown34_SSSE3(const uint8* src_ptr,
>         "m"(kShuf1),  // %1
>         "m"(kShuf2)   // %2
>       );
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm2   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "movdqa    %%xmm2,%%xmm1                   \n"
>-    "palignr   $0x8,%%xmm0,%%xmm1              \n"
>-    "pshufb    %%xmm3,%%xmm0                   \n"
>-    "pshufb    %%xmm4,%%xmm1                   \n"
>-    "pshufb    %%xmm5,%%xmm2                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "movq      %%xmm1," MEMACCESS2(0x8,1) "    \n"
>-    "movq      %%xmm2," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x18,1) ",%1           \n"
>-    "sub       $0x18,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),   // %0
>-    "+r"(dst_ptr),   // %1
>-    "+r"(dst_width)  // %2
>-  :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm2                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "movdqa    %%xmm2,%%xmm1                   \n"
>+      "palignr   $0x8,%%xmm0,%%xmm1              \n"
>+      "pshufb    %%xmm3,%%xmm0                   \n"
>+      "pshufb    %%xmm4,%%xmm1                   \n"
>+      "pshufb    %%xmm5,%%xmm2                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movq      %%xmm1,0x8(%1)                  \n"
>+      "movq      %%xmm2,0x10(%1)                 \n"
>+      "lea       0x18(%1),%1                     \n"
>+      "sub       $0x18,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
> }
> 
>-void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width) {
>   asm volatile(
>       "movdqa    %0,%%xmm2                       \n"  // kShuf01
>@@ -534,53 +531,53 @@ void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
>         "m"(kMadd11),  // %1
>         "m"(kRound34)  // %2
>       );
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm6         \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm7)           //  movdqu  (%0,%3),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm5,%%xmm6                   \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS(1) "         \n"
>-    "movdqu    " MEMACCESS2(0x8,0) ",%%xmm6    \n"
>-    MEMOPREG(movdqu,0x8,0,3,1,xmm7)            //  movdqu  0x8(%0,%3),%%xmm7
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm3,%%xmm6                   \n"
>-    "pmaddubsw %%xmm0,%%xmm6                   \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS2(0x8,1) "    \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x10,0,3,1,xmm7)           //  movdqu  0x10(%0,%3),%%xmm7
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm4,%%xmm6                   \n"
>-    "pmaddubsw %4,%%xmm6                       \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x18,1) ",%1           \n"
>-    "sub       $0x18,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),   // %0
>-    "+r"(dst_ptr),   // %1
>-    "+r"(dst_width)  // %2
>-  : "r"((intptr_t)(src_stride)),  // %3
>-    "m"(kMadd21)     // %4
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm6                     \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm7            \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm5,%%xmm6                   \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,(%1)                     \n"
>+      "movdqu    0x8(%0),%%xmm6                  \n"
>+      "movdqu    0x8(%0,%3,1),%%xmm7             \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm3,%%xmm6                   \n"
>+      "pmaddubsw %%xmm0,%%xmm6                   \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,0x8(%1)                  \n"
>+      "movdqu    0x10(%0),%%xmm6                 \n"
>+      "movdqu    0x10(%0,%3,1),%%xmm7            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm4,%%xmm6                   \n"
>+      "pmaddubsw %4,%%xmm6                       \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,0x10(%1)                 \n"
>+      "lea       0x18(%1),%1                     \n"
>+      "sub       $0x18,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),                // %0
>+        "+r"(dst_ptr),                // %1
>+        "+r"(dst_width)               // %2
>+      : "r"((intptr_t)(src_stride)),  // %3
>+        "m"(kMadd21)                  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> 
>-void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width) {
>   asm volatile(
>       "movdqa    %0,%%xmm2                       \n"  // kShuf01
>@@ -601,88 +598,87 @@ void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
>         "m"(kRound34)  // %2
>       );
> 
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm6         \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm7)           //  movdqu  (%0,%3,1),%%xmm7
>-    "pavgb     %%xmm6,%%xmm7                   \n"
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm2,%%xmm6                   \n"
>-    "pmaddubsw %%xmm5,%%xmm6                   \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS(1) "         \n"
>-    "movdqu    " MEMACCESS2(0x8,0) ",%%xmm6    \n"
>-    MEMOPREG(movdqu,0x8,0,3,1,xmm7)            //  movdqu  0x8(%0,%3,1),%%xmm7
>-    "pavgb     %%xmm6,%%xmm7                   \n"
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm3,%%xmm6                   \n"
>-    "pmaddubsw %%xmm0,%%xmm6                   \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS2(0x8,1) "    \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm6   \n"
>-    MEMOPREG(movdqu,0x10,0,3,1,xmm7)           //  movdqu  0x10(%0,%3,1),%%xmm7
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pavgb     %%xmm6,%%xmm7                   \n"
>-    "pavgb     %%xmm7,%%xmm6                   \n"
>-    "pshufb    %%xmm4,%%xmm6                   \n"
>-    "pmaddubsw %4,%%xmm6                       \n"
>-    "paddsw    %%xmm1,%%xmm6                   \n"
>-    "psrlw     $0x2,%%xmm6                     \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movq      %%xmm6," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x18,1) ",%1           \n"
>-    "sub       $0x18,%2                        \n"
>-    "jg        1b                              \n"
>-    : "+r"(src_ptr),   // %0
>-      "+r"(dst_ptr),   // %1
>-      "+r"(dst_width)  // %2
>-    : "r"((intptr_t)(src_stride)),  // %3
>-      "m"(kMadd21)     // %4
>-    : "memory", "cc", NACL_R14
>-      "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm6                     \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm7            \n"
>+      "pavgb     %%xmm6,%%xmm7                   \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm2,%%xmm6                   \n"
>+      "pmaddubsw %%xmm5,%%xmm6                   \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,(%1)                     \n"
>+      "movdqu    0x8(%0),%%xmm6                  \n"
>+      "movdqu    0x8(%0,%3,1),%%xmm7             \n"
>+      "pavgb     %%xmm6,%%xmm7                   \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm3,%%xmm6                   \n"
>+      "pmaddubsw %%xmm0,%%xmm6                   \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,0x8(%1)                  \n"
>+      "movdqu    0x10(%0),%%xmm6                 \n"
>+      "movdqu    0x10(%0,%3,1),%%xmm7            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pavgb     %%xmm6,%%xmm7                   \n"
>+      "pavgb     %%xmm7,%%xmm6                   \n"
>+      "pshufb    %%xmm4,%%xmm6                   \n"
>+      "pmaddubsw %4,%%xmm6                       \n"
>+      "paddsw    %%xmm1,%%xmm6                   \n"
>+      "psrlw     $0x2,%%xmm6                     \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movq      %%xmm6,0x10(%1)                 \n"
>+      "lea       0x18(%1),%1                     \n"
>+      "sub       $0x18,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),                // %0
>+        "+r"(dst_ptr),                // %1
>+        "+r"(dst_width)               // %2
>+      : "r"((intptr_t)(src_stride)),  // %3
>+        "m"(kMadd21)                  // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> 
>-void ScaleRowDown38_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_SSSE3(const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>-                          uint8* dst_ptr,
>+                          uint8_t* dst_ptr,
>                           int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    "movdqa    %3,%%xmm4                       \n"
>-    "movdqa    %4,%%xmm5                       \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "pshufb    %%xmm5,%%xmm1                   \n"
>-    "paddusb   %%xmm1,%%xmm0                   \n"
>-    "movq      %%xmm0," MEMACCESS(1) "         \n"
>-    "movhlps   %%xmm0,%%xmm1                   \n"
>-    "movd      %%xmm1," MEMACCESS2(0x8,1) "    \n"
>-    "lea       " MEMLEA(0xc,1) ",%1            \n"
>-    "sub       $0xc,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),   // %0
>-    "+r"(dst_ptr),   // %1
>-    "+r"(dst_width)  // %2
>-  : "m"(kShuf38a),   // %3
>-    "m"(kShuf38b)    // %4
>-  : "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"
>-  );
>+  asm volatile(
>+      "movdqa    %3,%%xmm4                       \n"
>+      "movdqa    %4,%%xmm5                       \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "pshufb    %%xmm5,%%xmm1                   \n"
>+      "paddusb   %%xmm1,%%xmm0                   \n"
>+      "movq      %%xmm0,(%1)                     \n"
>+      "movhlps   %%xmm0,%%xmm1                   \n"
>+      "movd      %%xmm1,0x8(%1)                  \n"
>+      "lea       0xc(%1),%1                      \n"
>+      "sub       $0xc,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+      : "m"(kShuf38a),   // %3
>+        "m"(kShuf38b)    // %4
>+      : "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5");
> }
> 
>-void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width) {
>   asm volatile(
>       "movdqa    %0,%%xmm2                       \n"
>@@ -695,40 +691,39 @@ void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
>         "m"(kShufAb2),  // %2
>         "m"(kScaleAb2)  // %3
>       );
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm1)           //  movdqu  (%0,%3,1),%%xmm1
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "pavgb     %%xmm1,%%xmm0                   \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "pshufb    %%xmm2,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm6                   \n"
>-    "pshufb    %%xmm3,%%xmm6                   \n"
>-    "paddusw   %%xmm6,%%xmm1                   \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "paddusw   %%xmm0,%%xmm1                   \n"
>-    "pmulhuw   %%xmm5,%%xmm1                   \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movd      %%xmm1," MEMACCESS(1) "         \n"
>-    "psrlq     $0x10,%%xmm1                    \n"
>-    "movd      %%xmm1," MEMACCESS2(0x2,1) "    \n"
>-    "lea       " MEMLEA(0x6,1) ",%1            \n"
>-    "sub       $0x6,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),     // %0
>-    "+r"(dst_ptr),     // %1
>-    "+r"(dst_width)    // %2
>-  : "r"((intptr_t)(src_stride))  // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm1            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "pavgb     %%xmm1,%%xmm0                   \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "pshufb    %%xmm2,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm6                   \n"
>+      "pshufb    %%xmm3,%%xmm6                   \n"
>+      "paddusw   %%xmm6,%%xmm1                   \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "paddusw   %%xmm0,%%xmm1                   \n"
>+      "pmulhuw   %%xmm5,%%xmm1                   \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movd      %%xmm1,(%1)                     \n"
>+      "psrlq     $0x10,%%xmm1                    \n"
>+      "movd      %%xmm1,0x2(%1)                  \n"
>+      "lea       0x6(%1),%1                      \n"
>+      "sub       $0x6,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),               // %0
>+        "+r"(dst_ptr),               // %1
>+        "+r"(dst_width)              // %2
>+      : "r"((intptr_t)(src_stride))  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> 
>-void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
>+void ScaleRowDown38_3_Box_SSSE3(const uint8_t* src_ptr,
>                                 ptrdiff_t src_stride,
>-                                uint8* dst_ptr,
>+                                uint8_t* dst_ptr,
>                                 int dst_width) {
>   asm volatile(
>       "movdqa    %0,%%xmm2                       \n"
>@@ -740,529 +735,533 @@ void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
>         "m"(kShufAc3),   // %1
>         "m"(kScaleAc33)  // %2
>       );
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm6)           //  movdqu  (%0,%3,1),%%xmm6
>-    "movhlps   %%xmm0,%%xmm1                   \n"
>-    "movhlps   %%xmm6,%%xmm7                   \n"
>-    "punpcklbw %%xmm5,%%xmm0                   \n"
>-    "punpcklbw %%xmm5,%%xmm1                   \n"
>-    "punpcklbw %%xmm5,%%xmm6                   \n"
>-    "punpcklbw %%xmm5,%%xmm7                   \n"
>-    "paddusw   %%xmm6,%%xmm0                   \n"
>-    "paddusw   %%xmm7,%%xmm1                   \n"
>-    MEMOPREG(movdqu,0x00,0,3,2,xmm6)           //  movdqu  (%0,%3,2),%%xmm6
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"
>-    "movhlps   %%xmm6,%%xmm7                   \n"
>-    "punpcklbw %%xmm5,%%xmm6                   \n"
>-    "punpcklbw %%xmm5,%%xmm7                   \n"
>-    "paddusw   %%xmm6,%%xmm0                   \n"
>-    "paddusw   %%xmm7,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm6                   \n"
>-    "psrldq    $0x2,%%xmm0                     \n"
>-    "paddusw   %%xmm0,%%xmm6                   \n"
>-    "psrldq    $0x2,%%xmm0                     \n"
>-    "paddusw   %%xmm0,%%xmm6                   \n"
>-    "pshufb    %%xmm2,%%xmm6                   \n"
>-    "movdqa    %%xmm1,%%xmm7                   \n"
>-    "psrldq    $0x2,%%xmm1                     \n"
>-    "paddusw   %%xmm1,%%xmm7                   \n"
>-    "psrldq    $0x2,%%xmm1                     \n"
>-    "paddusw   %%xmm1,%%xmm7                   \n"
>-    "pshufb    %%xmm3,%%xmm7                   \n"
>-    "paddusw   %%xmm7,%%xmm6                   \n"
>-    "pmulhuw   %%xmm4,%%xmm6                   \n"
>-    "packuswb  %%xmm6,%%xmm6                   \n"
>-    "movd      %%xmm6," MEMACCESS(1) "         \n"
>-    "psrlq     $0x10,%%xmm6                    \n"
>-    "movd      %%xmm6," MEMACCESS2(0x2,1) "    \n"
>-    "lea       " MEMLEA(0x6,1) ",%1            \n"
>-    "sub       $0x6,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),    // %0
>-    "+r"(dst_ptr),    // %1
>-    "+r"(dst_width)   // %2
>-  : "r"((intptr_t)(src_stride))   // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm6            \n"
>+      "movhlps   %%xmm0,%%xmm1                   \n"
>+      "movhlps   %%xmm6,%%xmm7                   \n"
>+      "punpcklbw %%xmm5,%%xmm0                   \n"
>+      "punpcklbw %%xmm5,%%xmm1                   \n"
>+      "punpcklbw %%xmm5,%%xmm6                   \n"
>+      "punpcklbw %%xmm5,%%xmm7                   \n"
>+      "paddusw   %%xmm6,%%xmm0                   \n"
>+      "paddusw   %%xmm7,%%xmm1                   \n"
>+      "movdqu    0x00(%0,%3,2),%%xmm6            \n"
>+      "lea       0x10(%0),%0                     \n"
>+      "movhlps   %%xmm6,%%xmm7                   \n"
>+      "punpcklbw %%xmm5,%%xmm6                   \n"
>+      "punpcklbw %%xmm5,%%xmm7                   \n"
>+      "paddusw   %%xmm6,%%xmm0                   \n"
>+      "paddusw   %%xmm7,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm6                   \n"
>+      "psrldq    $0x2,%%xmm0                     \n"
>+      "paddusw   %%xmm0,%%xmm6                   \n"
>+      "psrldq    $0x2,%%xmm0                     \n"
>+      "paddusw   %%xmm0,%%xmm6                   \n"
>+      "pshufb    %%xmm2,%%xmm6                   \n"
>+      "movdqa    %%xmm1,%%xmm7                   \n"
>+      "psrldq    $0x2,%%xmm1                     \n"
>+      "paddusw   %%xmm1,%%xmm7                   \n"
>+      "psrldq    $0x2,%%xmm1                     \n"
>+      "paddusw   %%xmm1,%%xmm7                   \n"
>+      "pshufb    %%xmm3,%%xmm7                   \n"
>+      "paddusw   %%xmm7,%%xmm6                   \n"
>+      "pmulhuw   %%xmm4,%%xmm6                   \n"
>+      "packuswb  %%xmm6,%%xmm6                   \n"
>+      "movd      %%xmm6,(%1)                     \n"
>+      "psrlq     $0x10,%%xmm6                    \n"
>+      "movd      %%xmm6,0x2(%1)                  \n"
>+      "lea       0x6(%1),%1                      \n"
>+      "sub       $0x6,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),               // %0
>+        "+r"(dst_ptr),               // %1
>+        "+r"(dst_width)              // %2
>+      : "r"((intptr_t)(src_stride))  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> 
> // Reads 16xN bytes and produces 16 shorts at a time.
>-void ScaleAddRow_SSE2(const uint8* src_ptr, uint16* dst_ptr, int src_width) {
>-  asm volatile (
>-    "pxor      %%xmm5,%%xmm5                   \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm3         \n"
>-    "lea       " MEMLEA(0x10,0) ",%0           \n"  // src_ptr += 16
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,1) ",%%xmm1   \n"
>-    "movdqa    %%xmm3,%%xmm2                   \n"
>-    "punpcklbw %%xmm5,%%xmm2                   \n"
>-    "punpckhbw %%xmm5,%%xmm3                   \n"
>-    "paddusw   %%xmm2,%%xmm0                   \n"
>-    "paddusw   %%xmm3,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,1) "   \n"
>-    "lea       " MEMLEA(0x20,1) ",%1           \n"
>-    "sub       $0x10,%2                        \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_ptr),     // %0
>-    "+r"(dst_ptr),     // %1
>-    "+r"(src_width)    // %2
>-  :
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+void ScaleAddRow_SSE2(const uint8_t* src_ptr,
>+                      uint16_t* dst_ptr,
>+                      int src_width) {
>+  asm volatile(
>+
>+      "pxor      %%xmm5,%%xmm5                   \n"
>+
>+      // 16 pixel loop.
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm3                     \n"
>+      "lea       0x10(%0),%0                     \n"  // src_ptr += 16
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "movdqu    0x10(%1),%%xmm1                 \n"
>+      "movdqa    %%xmm3,%%xmm2                   \n"
>+      "punpcklbw %%xmm5,%%xmm2                   \n"
>+      "punpckhbw %%xmm5,%%xmm3                   \n"
>+      "paddusw   %%xmm2,%%xmm0                   \n"
>+      "paddusw   %%xmm3,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "movdqu    %%xmm1,0x10(%1)                 \n"
>+      "lea       0x20(%1),%1                     \n"
>+      "sub       $0x10,%2                        \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(src_width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> 
> #ifdef HAS_SCALEADDROW_AVX2
> // Reads 32 bytes and accumulates to 32 shorts at a time.
>-void ScaleAddRow_AVX2(const uint8* src_ptr, uint16* dst_ptr, int src_width) {
>-  asm volatile (
>-    "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "vmovdqu    " MEMACCESS(0) ",%%ymm3        \n"
>-    "lea        " MEMLEA(0x20,0) ",%0          \n"  // src_ptr += 32
>-    "vpermq     $0xd8,%%ymm3,%%ymm3            \n"
>-    "vpunpcklbw %%ymm5,%%ymm3,%%ymm2           \n"
>-    "vpunpckhbw %%ymm5,%%ymm3,%%ymm3           \n"
>-    "vpaddusw   " MEMACCESS(1) ",%%ymm2,%%ymm0 \n"
>-    "vpaddusw   " MEMACCESS2(0x20,1) ",%%ymm3,%%ymm1 \n"
>-    "vmovdqu    %%ymm0," MEMACCESS(1) "        \n"
>-    "vmovdqu    %%ymm1," MEMACCESS2(0x20,1) "  \n"
>-    "lea       " MEMLEA(0x40,1) ",%1           \n"
>-    "sub       $0x20,%2                        \n"
>-    "jg        1b                              \n"
>-    "vzeroupper                                \n"
>-  : "+r"(src_ptr),     // %0
>-    "+r"(dst_ptr),     // %1
>-    "+r"(src_width)    // %2
>-  :
>-  : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
>-  );
>+void ScaleAddRow_AVX2(const uint8_t* src_ptr,
>+                      uint16_t* dst_ptr,
>+                      int src_width) {
>+  asm volatile(
>+
>+      "vpxor      %%ymm5,%%ymm5,%%ymm5           \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "vmovdqu    (%0),%%ymm3                    \n"
>+      "lea        0x20(%0),%0                    \n"  // src_ptr += 32
>+      "vpermq     $0xd8,%%ymm3,%%ymm3            \n"
>+      "vpunpcklbw %%ymm5,%%ymm3,%%ymm2           \n"
>+      "vpunpckhbw %%ymm5,%%ymm3,%%ymm3           \n"
>+      "vpaddusw   (%1),%%ymm2,%%ymm0             \n"
>+      "vpaddusw   0x20(%1),%%ymm3,%%ymm1         \n"
>+      "vmovdqu    %%ymm0,(%1)                    \n"
>+      "vmovdqu    %%ymm1,0x20(%1)                \n"
>+      "lea       0x40(%1),%1                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+      "vzeroupper                                \n"
>+      : "+r"(src_ptr),   // %0
>+        "+r"(dst_ptr),   // %1
>+        "+r"(src_width)  // %2
>+      :
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
> }
> #endif  // HAS_SCALEADDROW_AVX2
> 
> // Constant for making pixels signed to avoid pmaddubsw
> // saturation.
>-static uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
>-                        0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
>+static const uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
>+                              0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
> 
> // Constant for making pixels unsigned and adding .5 for rounding.
>-static uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040,
>-                         0x4040, 0x4040, 0x4040, 0x4040};
>+static const uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040,
>+                               0x4040, 0x4040, 0x4040, 0x4040};
> 
> // Bilinear column filtering. SSSE3 version.
>-void ScaleFilterCols_SSSE3(uint8* dst_ptr,
>-                           const uint8* src_ptr,
>+void ScaleFilterCols_SSSE3(uint8_t* dst_ptr,
>+                           const uint8_t* src_ptr,
>                            int dst_width,
>                            int x,
>                            int dx) {
>   intptr_t x0, x1, temp_pixel;
>-  asm volatile (
>-    "movd      %6,%%xmm2                       \n"
>-    "movd      %7,%%xmm3                       \n"
>-    "movl      $0x04040000,%k2                 \n"
>-    "movd      %k2,%%xmm5                      \n"
>-    "pcmpeqb   %%xmm6,%%xmm6                   \n"
>-    "psrlw     $0x9,%%xmm6                     \n"  // 0x007f007f
>-    "pcmpeqb   %%xmm7,%%xmm7                   \n"
>-    "psrlw     $15,%%xmm7                      \n"  // 0x00010001
>-
>-    "pextrw    $0x1,%%xmm2,%k3                 \n"
>-    "subl      $0x2,%5                         \n"
>-    "jl        29f                             \n"
>-    "movdqa    %%xmm2,%%xmm0                   \n"
>-    "paddd     %%xmm3,%%xmm0                   \n"
>-    "punpckldq %%xmm0,%%xmm2                   \n"
>-    "punpckldq %%xmm3,%%xmm3                   \n"
>-    "paddd     %%xmm3,%%xmm3                   \n"
>-    "pextrw    $0x3,%%xmm2,%k4                 \n"
>-
>-    LABELALIGN
>-  "2:                                          \n"
>-    "movdqa    %%xmm2,%%xmm1                   \n"
>-    "paddd     %%xmm3,%%xmm2                   \n"
>-    MEMOPARG(movzwl,0x00,1,3,1,k2)             //  movzwl  (%1,%3,1),%k2
>-    "movd      %k2,%%xmm0                      \n"
>-    "psrlw     $0x9,%%xmm1                     \n"
>-    MEMOPARG(movzwl,0x00,1,4,1,k2)             //  movzwl  (%1,%4,1),%k2
>-    "movd      %k2,%%xmm4                      \n"
>-    "pshufb    %%xmm5,%%xmm1                   \n"
>-    "punpcklwd %%xmm4,%%xmm0                   \n"
>-    "psubb     %8,%%xmm0                       \n"  // make pixels signed.
>-    "pxor      %%xmm6,%%xmm1                   \n"  // 128 - f = (f ^ 127 ) + 1
>-    "paddusb   %%xmm7,%%xmm1                   \n"
>-    "pmaddubsw %%xmm0,%%xmm1                   \n"
>-    "pextrw    $0x1,%%xmm2,%k3                 \n"
>-    "pextrw    $0x3,%%xmm2,%k4                 \n"
>-    "paddw     %9,%%xmm1                       \n"  // make pixels unsigned.
>-    "psrlw     $0x7,%%xmm1                     \n"
>-    "packuswb  %%xmm1,%%xmm1                   \n"
>-    "movd      %%xmm1,%k2                      \n"
>-    "mov       %w2," MEMACCESS(0) "            \n"
>-    "lea       " MEMLEA(0x2,0) ",%0            \n"
>-    "subl      $0x2,%5                         \n"
>-    "jge       2b                              \n"
>-
>-    LABELALIGN
>-  "29:                                         \n"
>-    "addl      $0x1,%5                         \n"
>-    "jl        99f                             \n"
>-    MEMOPARG(movzwl,0x00,1,3,1,k2)             //  movzwl  (%1,%3,1),%k2
>-    "movd      %k2,%%xmm0                      \n"
>-    "psrlw     $0x9,%%xmm2                     \n"
>-    "pshufb    %%xmm5,%%xmm2                   \n"
>-    "psubb     %8,%%xmm0                       \n"  // make pixels signed.
>-    "pxor      %%xmm6,%%xmm2                   \n"
>-    "paddusb   %%xmm7,%%xmm2                   \n"
>-    "pmaddubsw %%xmm0,%%xmm2                   \n"
>-    "paddw     %9,%%xmm2                       \n"  // make pixels unsigned.
>-    "psrlw     $0x7,%%xmm2                     \n"
>-    "packuswb  %%xmm2,%%xmm2                   \n"
>-    "movd      %%xmm2,%k2                      \n"
>-    "mov       %b2," MEMACCESS(0) "            \n"
>-  "99:                                         \n"
>-  : "+r"(dst_ptr),      // %0
>-    "+r"(src_ptr),      // %1
>-    "=&a"(temp_pixel),  // %2
>-    "=&r"(x0),          // %3
>-    "=&r"(x1),          // %4
>+  asm volatile(
>+      "movd      %6,%%xmm2                       \n"
>+      "movd      %7,%%xmm3                       \n"
>+      "movl      $0x04040000,%k2                 \n"
>+      "movd      %k2,%%xmm5                      \n"
>+      "pcmpeqb   %%xmm6,%%xmm6                   \n"
>+      "psrlw     $0x9,%%xmm6                     \n"  // 0x007f007f
>+      "pcmpeqb   %%xmm7,%%xmm7                   \n"
>+      "psrlw     $15,%%xmm7                      \n"  // 0x00010001
>+
>+      "pextrw    $0x1,%%xmm2,%k3                 \n"
>+      "subl      $0x2,%5                         \n"
>+      "jl        29f                             \n"
>+      "movdqa    %%xmm2,%%xmm0                   \n"
>+      "paddd     %%xmm3,%%xmm0                   \n"
>+      "punpckldq %%xmm0,%%xmm2                   \n"
>+      "punpckldq %%xmm3,%%xmm3                   \n"
>+      "paddd     %%xmm3,%%xmm3                   \n"
>+      "pextrw    $0x3,%%xmm2,%k4                 \n"
>+
>+      LABELALIGN
>+      "2:                                        \n"
>+      "movdqa    %%xmm2,%%xmm1                   \n"
>+      "paddd     %%xmm3,%%xmm2                   \n"
>+      "movzwl    0x00(%1,%3,1),%k2               \n"
>+      "movd      %k2,%%xmm0                      \n"
>+      "psrlw     $0x9,%%xmm1                     \n"
>+      "movzwl    0x00(%1,%4,1),%k2               \n"
>+      "movd      %k2,%%xmm4                      \n"
>+      "pshufb    %%xmm5,%%xmm1                   \n"
>+      "punpcklwd %%xmm4,%%xmm0                   \n"
>+      "psubb     %8,%%xmm0                       \n"  // make pixels signed.
>+      "pxor      %%xmm6,%%xmm1                   \n"  // 128 - f = (f ^ 127 ) +
>+                                                      // 1
>+      "paddusb   %%xmm7,%%xmm1                   \n"
>+      "pmaddubsw %%xmm0,%%xmm1                   \n"
>+      "pextrw    $0x1,%%xmm2,%k3                 \n"
>+      "pextrw    $0x3,%%xmm2,%k4                 \n"
>+      "paddw     %9,%%xmm1                       \n"  // make pixels unsigned.
>+      "psrlw     $0x7,%%xmm1                     \n"
>+      "packuswb  %%xmm1,%%xmm1                   \n"
>+      "movd      %%xmm1,%k2                      \n"
>+      "mov       %w2,(%0)                        \n"
>+      "lea       0x2(%0),%0                      \n"
>+      "subl      $0x2,%5                         \n"
>+      "jge       2b                              \n"
>+
>+      LABELALIGN
>+      "29:                                       \n"
>+      "addl      $0x1,%5                         \n"
>+      "jl        99f                             \n"
>+      "movzwl    0x00(%1,%3,1),%k2               \n"
>+      "movd      %k2,%%xmm0                      \n"
>+      "psrlw     $0x9,%%xmm2                     \n"
>+      "pshufb    %%xmm5,%%xmm2                   \n"
>+      "psubb     %8,%%xmm0                       \n"  // make pixels signed.
>+      "pxor      %%xmm6,%%xmm2                   \n"
>+      "paddusb   %%xmm7,%%xmm2                   \n"
>+      "pmaddubsw %%xmm0,%%xmm2                   \n"
>+      "paddw     %9,%%xmm2                       \n"  // make pixels unsigned.
>+      "psrlw     $0x7,%%xmm2                     \n"
>+      "packuswb  %%xmm2,%%xmm2                   \n"
>+      "movd      %%xmm2,%k2                      \n"
>+      "mov       %b2,(%0)                        \n"
>+      "99:                                       \n"
>+      : "+r"(dst_ptr),      // %0
>+        "+r"(src_ptr),      // %1
>+        "=&a"(temp_pixel),  // %2
>+        "=&r"(x0),          // %3
>+        "=&r"(x1),          // %4
> #if defined(__x86_64__)
>-    "+rm"(dst_width)    // %5
>+        "+rm"(dst_width)  // %5
> #else
>-    "+m"(dst_width)    // %5
>+        "+m"(dst_width)  // %5
> #endif
>-  : "rm"(x),            // %6
>-    "rm"(dx),           // %7
>+      : "rm"(x),   // %6
>+        "rm"(dx),  // %7
> #if defined(__x86_64__)
>-    "x"(kFsub80),       // %8
>-    "x"(kFadd40)        // %9
>+        "x"(kFsub80),  // %8
>+        "x"(kFadd40)   // %9
> #else
>-    "m"(kFsub80),       // %8
>-    "m"(kFadd40)        // %9
>+        "m"(kFsub80),    // %8
>+        "m"(kFadd40)     // %9
> #endif
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
>-  );
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
>+        "xmm7");
> }
> 
> // Reads 4 pixels, duplicates them and writes 8 pixels.
> // Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned.
>-void ScaleColsUp2_SSE2(uint8* dst_ptr,
>-                       const uint8* src_ptr,
>+void ScaleColsUp2_SSE2(uint8_t* dst_ptr,
>+                       const uint8_t* src_ptr,
>                        int dst_width,
>                        int x,
>                        int dx) {
>   (void)x;
>   (void)dx;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpcklbw %%xmm0,%%xmm0                   \n"
>-    "punpckhbw %%xmm1,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(0) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,0) "   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "sub       $0x20,%2                         \n"
>-    "jg        1b                              \n"
>-
>-  : "+r"(dst_ptr),     // %0
>-    "+r"(src_ptr),     // %1
>-    "+r"(dst_width)    // %2
>-  :: "memory", "cc", "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpcklbw %%xmm0,%%xmm0                   \n"
>+      "punpckhbw %%xmm1,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%0)                     \n"
>+      "movdqu    %%xmm1,0x10(%0)                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "sub       $0x20,%2                        \n"
>+      "jg        1b                              \n"
>+
>+      : "+r"(dst_ptr),   // %0
>+        "+r"(src_ptr),   // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
>-void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2_SSE2(const uint8_t* src_argb,
>                             ptrdiff_t src_stride,
>-                            uint8* dst_argb,
>+                            uint8_t* dst_argb,
>                             int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm0             \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(dst_width)  // %2
>-  :: "memory", "cc", "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm0             \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
>-void ScaleARGBRowDown2Linear_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_SSE2(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   (void)src_stride;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),  // %0
>-    "+r"(dst_argb),  // %1
>-    "+r"(dst_width)  // %2
>-  :: "memory", "cc", "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),  // %0
>+        "+r"(dst_argb),  // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
>-void ScaleARGBRowDown2Box_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDown2Box_SSE2(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(0) ",%%xmm0         \n"
>-    "movdqu    " MEMACCESS2(0x10,0) ",%%xmm1   \n"
>-    MEMOPREG(movdqu,0x00,0,3,1,xmm2)           //  movdqu   (%0,%3,1),%%xmm2
>-    MEMOPREG(movdqu,0x10,0,3,1,xmm3)           //  movdqu   0x10(%0,%3,1),%%xmm3
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "pavgb     %%xmm3,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(1) "         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "sub       $0x4,%2                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),   // %0
>-    "+r"(dst_argb),   // %1
>-    "+r"(dst_width)   // %2
>-  : "r"((intptr_t)(src_stride))   // %3
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%0),%%xmm0                     \n"
>+      "movdqu    0x10(%0),%%xmm1                 \n"
>+      "movdqu    0x00(%0,%3,1),%%xmm2            \n"
>+      "movdqu    0x10(%0,%3,1),%%xmm3            \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "pavgb     %%xmm3,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%1)                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "sub       $0x4,%2                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),              // %0
>+        "+r"(dst_argb),              // %1
>+        "+r"(dst_width)              // %2
>+      : "r"((intptr_t)(src_stride))  // %3
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3");
> }
> 
> // Reads 4 pixels at a time.
> // Alignment requirement: dst_argb 16 byte aligned.
>-void ScaleARGBRowDownEven_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEven_SSE2(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>   intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
>   intptr_t src_stepx_x12;
>   (void)src_stride;
>-  asm volatile (
>-    "lea       " MEMLEA3(0x00,1,4) ",%1        \n"
>-    "lea       " MEMLEA4(0x00,1,1,2) ",%4      \n"
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movd      " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movd,0x00,0,1,1,xmm1)             //  movd      (%0,%1,1),%%xmm1
>-    "punpckldq %%xmm1,%%xmm0                   \n"
>-    MEMOPREG(movd,0x00,0,1,2,xmm2)             //  movd      (%0,%1,2),%%xmm2
>-    MEMOPREG(movd,0x00,0,4,1,xmm3)             //  movd      (%0,%4,1),%%xmm3
>-    "lea       " MEMLEA4(0x00,0,1,4) ",%0      \n"
>-    "punpckldq %%xmm3,%%xmm2                   \n"
>-    "punpcklqdq %%xmm2,%%xmm0                  \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),       // %0
>-    "+r"(src_stepx_x4),   // %1
>-    "+r"(dst_argb),       // %2
>-    "+r"(dst_width),      // %3
>-    "=&r"(src_stepx_x12)  // %4
>-  :: "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3"
>-  );
>+  asm volatile(
>+      "lea       0x00(,%1,4),%1                  \n"
>+      "lea       0x00(%1,%1,2),%4                \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movd      (%0),%%xmm0                     \n"
>+      "movd      0x00(%0,%1,1),%%xmm1            \n"
>+      "punpckldq %%xmm1,%%xmm0                   \n"
>+      "movd      0x00(%0,%1,2),%%xmm2            \n"
>+      "movd      0x00(%0,%4,1),%%xmm3            \n"
>+      "lea       0x00(%0,%1,4),%0                \n"
>+      "punpckldq %%xmm3,%%xmm2                   \n"
>+      "punpcklqdq %%xmm2,%%xmm0                  \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),       // %0
>+        "+r"(src_stepx_x4),   // %1
>+        "+r"(dst_argb),       // %2
>+        "+r"(dst_width),      // %3
>+        "=&r"(src_stepx_x12)  // %4
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3");
> }
> 
> // Blends four 2x2 to 4x1.
> // Alignment requirement: dst_argb 16 byte aligned.
>-void ScaleARGBRowDownEvenBox_SSE2(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_SSE2(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>                                   int src_stepx,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
>   intptr_t src_stepx_x12;
>   intptr_t row1 = (intptr_t)(src_stride);
>-  asm volatile (
>-    "lea       " MEMLEA3(0x00,1,4) ",%1        \n"
>-    "lea       " MEMLEA4(0x00,1,1,2) ",%4      \n"
>-    "lea       " MEMLEA4(0x00,0,5,1) ",%5      \n"
>-
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movq      " MEMACCESS(0) ",%%xmm0         \n"
>-    MEMOPREG(movhps,0x00,0,1,1,xmm0)           //  movhps    (%0,%1,1),%%xmm0
>-    MEMOPREG(movq,0x00,0,1,2,xmm1)             //  movq      (%0,%1,2),%%xmm1
>-    MEMOPREG(movhps,0x00,0,4,1,xmm1)           //  movhps    (%0,%4,1),%%xmm1
>-    "lea       " MEMLEA4(0x00,0,1,4) ",%0      \n"
>-    "movq      " MEMACCESS(5) ",%%xmm2         \n"
>-    MEMOPREG(movhps,0x00,5,1,1,xmm2)           //  movhps    (%5,%1,1),%%xmm2
>-    MEMOPREG(movq,0x00,5,1,2,xmm3)             //  movq      (%5,%1,2),%%xmm3
>-    MEMOPREG(movhps,0x00,5,4,1,xmm3)           //  movhps    (%5,%4,1),%%xmm3
>-    "lea       " MEMLEA4(0x00,5,1,4) ",%5      \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "pavgb     %%xmm3,%%xmm1                   \n"
>-    "movdqa    %%xmm0,%%xmm2                   \n"
>-    "shufps    $0x88,%%xmm1,%%xmm0             \n"
>-    "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>-    "pavgb     %%xmm2,%%xmm0                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%3                         \n"
>-    "jg        1b                              \n"
>-  : "+r"(src_argb),        // %0
>-    "+r"(src_stepx_x4),    // %1
>-    "+r"(dst_argb),        // %2
>-    "+rm"(dst_width),      // %3
>-    "=&r"(src_stepx_x12),  // %4
>-    "+r"(row1)             // %5
>-  :: "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3"
>-  );
>+  asm volatile(
>+      "lea       0x00(,%1,4),%1                  \n"
>+      "lea       0x00(%1,%1,2),%4                \n"
>+      "lea       0x00(%0,%5,1),%5                \n"
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movq      (%0),%%xmm0                     \n"
>+      "movhps    0x00(%0,%1,1),%%xmm0            \n"
>+      "movq      0x00(%0,%1,2),%%xmm1            \n"
>+      "movhps    0x00(%0,%4,1),%%xmm1            \n"
>+      "lea       0x00(%0,%1,4),%0                \n"
>+      "movq      (%5),%%xmm2                     \n"
>+      "movhps    0x00(%5,%1,1),%%xmm2            \n"
>+      "movq      0x00(%5,%1,2),%%xmm3            \n"
>+      "movhps    0x00(%5,%4,1),%%xmm3            \n"
>+      "lea       0x00(%5,%1,4),%5                \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "pavgb     %%xmm3,%%xmm1                   \n"
>+      "movdqa    %%xmm0,%%xmm2                   \n"
>+      "shufps    $0x88,%%xmm1,%%xmm0             \n"
>+      "shufps    $0xdd,%%xmm1,%%xmm2             \n"
>+      "pavgb     %%xmm2,%%xmm0                   \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%3                         \n"
>+      "jg        1b                              \n"
>+      : "+r"(src_argb),        // %0
>+        "+r"(src_stepx_x4),    // %1
>+        "+r"(dst_argb),        // %2
>+        "+rm"(dst_width),      // %3
>+        "=&r"(src_stepx_x12),  // %4
>+        "+r"(row1)             // %5
>+        ::"memory",
>+        "cc", "xmm0", "xmm1", "xmm2", "xmm3");
> }
> 
>-void ScaleARGBCols_SSE2(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBCols_SSE2(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx) {
>   intptr_t x0, x1;
>-  asm volatile (
>-    "movd      %5,%%xmm2                       \n"
>-    "movd      %6,%%xmm3                       \n"
>-    "pshufd    $0x0,%%xmm2,%%xmm2              \n"
>-    "pshufd    $0x11,%%xmm3,%%xmm0             \n"
>-    "paddd     %%xmm0,%%xmm2                   \n"
>-    "paddd     %%xmm3,%%xmm3                   \n"
>-    "pshufd    $0x5,%%xmm3,%%xmm0              \n"
>-    "paddd     %%xmm0,%%xmm2                   \n"
>-    "paddd     %%xmm3,%%xmm3                   \n"
>-    "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>-    "pextrw    $0x1,%%xmm2,%k0                 \n"
>-    "pextrw    $0x3,%%xmm2,%k1                 \n"
>-    "cmp       $0x0,%4                         \n"
>-    "jl        99f                             \n"
>-    "sub       $0x4,%4                         \n"
>-    "jl        49f                             \n"
>-
>-    LABELALIGN
>-  "40:                                         \n"
>-    MEMOPREG(movd,0x00,3,0,4,xmm0)             //  movd      (%3,%0,4),%%xmm0
>-    MEMOPREG(movd,0x00,3,1,4,xmm1)             //  movd      (%3,%1,4),%%xmm1
>-    "pextrw    $0x5,%%xmm2,%k0                 \n"
>-    "pextrw    $0x7,%%xmm2,%k1                 \n"
>-    "paddd     %%xmm3,%%xmm2                   \n"
>-    "punpckldq %%xmm1,%%xmm0                   \n"
>-    MEMOPREG(movd,0x00,3,0,4,xmm1)             //  movd      (%3,%0,4),%%xmm1
>-    MEMOPREG(movd,0x00,3,1,4,xmm4)             //  movd      (%3,%1,4),%%xmm4
>-    "pextrw    $0x1,%%xmm2,%k0                 \n"
>-    "pextrw    $0x3,%%xmm2,%k1                 \n"
>-    "punpckldq %%xmm4,%%xmm1                   \n"
>-    "punpcklqdq %%xmm1,%%xmm0                  \n"
>-    "movdqu    %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x10,2) ",%2           \n"
>-    "sub       $0x4,%4                         \n"
>-    "jge       40b                             \n"
>-
>-  "49:                                         \n"
>-    "test      $0x2,%4                         \n"
>-    "je        29f                             \n"
>-    MEMOPREG(movd,0x00,3,0,4,xmm0)             //  movd      (%3,%0,4),%%xmm0
>-    MEMOPREG(movd,0x00,3,1,4,xmm1)             //  movd      (%3,%1,4),%%xmm1
>-    "pextrw    $0x5,%%xmm2,%k0                 \n"
>-    "punpckldq %%xmm1,%%xmm0                   \n"
>-    "movq      %%xmm0," MEMACCESS(2) "         \n"
>-    "lea       " MEMLEA(0x8,2) ",%2            \n"
>-  "29:                                         \n"
>-    "test      $0x1,%4                         \n"
>-    "je        99f                             \n"
>-    MEMOPREG(movd,0x00,3,0,4,xmm0)             //  movd      (%3,%0,4),%%xmm0
>-    "movd      %%xmm0," MEMACCESS(2) "         \n"
>-  "99:                                         \n"
>-  : "=&a"(x0),         // %0
>-    "=&d"(x1),         // %1
>-    "+r"(dst_argb),    // %2
>-    "+r"(src_argb),    // %3
>-    "+r"(dst_width)    // %4
>-  : "rm"(x),           // %5
>-    "rm"(dx)           // %6
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
>-  );
>+  asm volatile(
>+      "movd      %5,%%xmm2                       \n"
>+      "movd      %6,%%xmm3                       \n"
>+      "pshufd    $0x0,%%xmm2,%%xmm2              \n"
>+      "pshufd    $0x11,%%xmm3,%%xmm0             \n"
>+      "paddd     %%xmm0,%%xmm2                   \n"
>+      "paddd     %%xmm3,%%xmm3                   \n"
>+      "pshufd    $0x5,%%xmm3,%%xmm0              \n"
>+      "paddd     %%xmm0,%%xmm2                   \n"
>+      "paddd     %%xmm3,%%xmm3                   \n"
>+      "pshufd    $0x0,%%xmm3,%%xmm3              \n"
>+      "pextrw    $0x1,%%xmm2,%k0                 \n"
>+      "pextrw    $0x3,%%xmm2,%k1                 \n"
>+      "cmp       $0x0,%4                         \n"
>+      "jl        99f                             \n"
>+      "sub       $0x4,%4                         \n"
>+      "jl        49f                             \n"
>+
>+      LABELALIGN
>+      "40:                                       \n"
>+      "movd      0x00(%3,%0,4),%%xmm0            \n"
>+      "movd      0x00(%3,%1,4),%%xmm1            \n"
>+      "pextrw    $0x5,%%xmm2,%k0                 \n"
>+      "pextrw    $0x7,%%xmm2,%k1                 \n"
>+      "paddd     %%xmm3,%%xmm2                   \n"
>+      "punpckldq %%xmm1,%%xmm0                   \n"
>+      "movd      0x00(%3,%0,4),%%xmm1            \n"
>+      "movd      0x00(%3,%1,4),%%xmm4            \n"
>+      "pextrw    $0x1,%%xmm2,%k0                 \n"
>+      "pextrw    $0x3,%%xmm2,%k1                 \n"
>+      "punpckldq %%xmm4,%%xmm1                   \n"
>+      "punpcklqdq %%xmm1,%%xmm0                  \n"
>+      "movdqu    %%xmm0,(%2)                     \n"
>+      "lea       0x10(%2),%2                     \n"
>+      "sub       $0x4,%4                         \n"
>+      "jge       40b                             \n"
>+
>+      "49:                                       \n"
>+      "test      $0x2,%4                         \n"
>+      "je        29f                             \n"
>+      "movd      0x00(%3,%0,4),%%xmm0            \n"
>+      "movd      0x00(%3,%1,4),%%xmm1            \n"
>+      "pextrw    $0x5,%%xmm2,%k0                 \n"
>+      "punpckldq %%xmm1,%%xmm0                   \n"
>+      "movq      %%xmm0,(%2)                     \n"
>+      "lea       0x8(%2),%2                      \n"
>+      "29:                                       \n"
>+      "test      $0x1,%4                         \n"
>+      "je        99f                             \n"
>+      "movd      0x00(%3,%0,4),%%xmm0            \n"
>+      "movd      %%xmm0,(%2)                     \n"
>+      "99:                                       \n"
>+      : "=&a"(x0),       // %0
>+        "=&d"(x1),       // %1
>+        "+r"(dst_argb),  // %2
>+        "+r"(src_argb),  // %3
>+        "+r"(dst_width)  // %4
>+      : "rm"(x),         // %5
>+        "rm"(dx)         // %6
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4");
> }
> 
> // Reads 4 pixels, duplicates them and writes 8 pixels.
> // Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned.
>-void ScaleARGBColsUp2_SSE2(uint8* dst_argb,
>-                           const uint8* src_argb,
>+void ScaleARGBColsUp2_SSE2(uint8_t* dst_argb,
>+                           const uint8_t* src_argb,
>                            int dst_width,
>                            int x,
>                            int dx) {
>   (void)x;
>   (void)dx;
>-  asm volatile (
>-    LABELALIGN
>-  "1:                                          \n"
>-    "movdqu    " MEMACCESS(1) ",%%xmm0         \n"
>-    "lea       " MEMLEA(0x10,1) ",%1           \n"
>-    "movdqa    %%xmm0,%%xmm1                   \n"
>-    "punpckldq %%xmm0,%%xmm0                   \n"
>-    "punpckhdq %%xmm1,%%xmm1                   \n"
>-    "movdqu    %%xmm0," MEMACCESS(0) "         \n"
>-    "movdqu    %%xmm1," MEMACCESS2(0x10,0) "   \n"
>-    "lea       " MEMLEA(0x20,0) ",%0           \n"
>-    "sub       $0x8,%2                         \n"
>-    "jg        1b                              \n"
>-
>-  : "+r"(dst_argb),    // %0
>-    "+r"(src_argb),    // %1
>-    "+r"(dst_width)    // %2
>-  :: "memory", "cc", NACL_R14
>-    "xmm0", "xmm1"
>-  );
>+  asm volatile(
>+
>+      LABELALIGN
>+      "1:                                        \n"
>+      "movdqu    (%1),%%xmm0                     \n"
>+      "lea       0x10(%1),%1                     \n"
>+      "movdqa    %%xmm0,%%xmm1                   \n"
>+      "punpckldq %%xmm0,%%xmm0                   \n"
>+      "punpckhdq %%xmm1,%%xmm1                   \n"
>+      "movdqu    %%xmm0,(%0)                     \n"
>+      "movdqu    %%xmm1,0x10(%0)                 \n"
>+      "lea       0x20(%0),%0                     \n"
>+      "sub       $0x8,%2                         \n"
>+      "jg        1b                              \n"
>+
>+      : "+r"(dst_argb),  // %0
>+        "+r"(src_argb),  // %1
>+        "+r"(dst_width)  // %2
>+        ::"memory",
>+        "cc", "xmm0", "xmm1");
> }
> 
> // Shuffle table for arranging 2 pixels into pairs for pmaddubsw
>-static uvec8 kShuffleColARGB = {
>+static const uvec8 kShuffleColARGB = {
>     0u, 4u,  1u, 5u,  2u,  6u,  3u,  7u,  // bbggrraa 1st pixel
>     8u, 12u, 9u, 13u, 10u, 14u, 11u, 15u  // bbggrraa 2nd pixel
> };
> 
> // Shuffle table for duplicating 2 fractions into 8 bytes each
>-static uvec8 kShuffleFractions = {
>+static const uvec8 kShuffleFractions = {
>     0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u,
> };
> 
> // Bilinear row filtering combines 4x2 -> 4x1. SSSE3 version
>-void ScaleARGBFilterCols_SSSE3(uint8* dst_argb,
>-                               const uint8* src_argb,
>+void ScaleARGBFilterCols_SSSE3(uint8_t* dst_argb,
>+                               const uint8_t* src_argb,
>                                int dst_width,
>                                int x,
>                                int dx) {
>@@ -1275,67 +1274,65 @@ void ScaleARGBFilterCols_SSSE3(uint8* dst_argb,
>         "m"(kShuffleFractions)  // %1
>       );
> 
>-  asm volatile (
>-    "movd      %5,%%xmm2                       \n"
>-    "movd      %6,%%xmm3                       \n"
>-    "pcmpeqb   %%xmm6,%%xmm6                   \n"
>-    "psrlw     $0x9,%%xmm6                     \n"
>-    "pextrw    $0x1,%%xmm2,%k3                 \n"
>-    "sub       $0x2,%2                         \n"
>-    "jl        29f                             \n"
>-    "movdqa    %%xmm2,%%xmm0                   \n"
>-    "paddd     %%xmm3,%%xmm0                   \n"
>-    "punpckldq %%xmm0,%%xmm2                   \n"
>-    "punpckldq %%xmm3,%%xmm3                   \n"
>-    "paddd     %%xmm3,%%xmm3                   \n"
>-    "pextrw    $0x3,%%xmm2,%k4                 \n"
>-
>-    LABELALIGN
>-  "2:                                          \n"
>-    "movdqa    %%xmm2,%%xmm1                   \n"
>-    "paddd     %%xmm3,%%xmm2                   \n"
>-    MEMOPREG(movq,0x00,1,3,4,xmm0)             //  movq      (%1,%3,4),%%xmm0
>-    "psrlw     $0x9,%%xmm1                     \n"
>-    MEMOPREG(movhps,0x00,1,4,4,xmm0)           //  movhps    (%1,%4,4),%%xmm0
>-    "pshufb    %%xmm5,%%xmm1                   \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "pxor      %%xmm6,%%xmm1                   \n"
>-    "pmaddubsw %%xmm1,%%xmm0                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "pextrw    $0x1,%%xmm2,%k3                 \n"
>-    "pextrw    $0x3,%%xmm2,%k4                 \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movq      %%xmm0," MEMACCESS(0) "         \n"
>-    "lea       " MEMLEA(0x8,0) ",%0            \n"
>-    "sub       $0x2,%2                         \n"
>-    "jge       2b                              \n"
>-
>-    LABELALIGN
>-  "29:                                         \n"
>-    "add       $0x1,%2                         \n"
>-    "jl        99f                             \n"
>-    "psrlw     $0x9,%%xmm2                     \n"
>-    MEMOPREG(movq,0x00,1,3,4,xmm0)             //  movq      (%1,%3,4),%%xmm0
>-    "pshufb    %%xmm5,%%xmm2                   \n"
>-    "pshufb    %%xmm4,%%xmm0                   \n"
>-    "pxor      %%xmm6,%%xmm2                   \n"
>-    "pmaddubsw %%xmm2,%%xmm0                   \n"
>-    "psrlw     $0x7,%%xmm0                     \n"
>-    "packuswb  %%xmm0,%%xmm0                   \n"
>-    "movd      %%xmm0," MEMACCESS(0) "         \n"
>-
>-    LABELALIGN
>-  "99:                                         \n"
>-  : "+r"(dst_argb),    // %0
>-    "+r"(src_argb),    // %1
>-    "+rm"(dst_width),  // %2
>-    "=&r"(x0),         // %3
>-    "=&r"(x1)          // %4
>-  : "rm"(x),           // %5
>-    "rm"(dx)           // %6
>-  : "memory", "cc", NACL_R14
>-    "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
>-  );
>+  asm volatile(
>+      "movd      %5,%%xmm2                       \n"
>+      "movd      %6,%%xmm3                       \n"
>+      "pcmpeqb   %%xmm6,%%xmm6                   \n"
>+      "psrlw     $0x9,%%xmm6                     \n"
>+      "pextrw    $0x1,%%xmm2,%k3                 \n"
>+      "sub       $0x2,%2                         \n"
>+      "jl        29f                             \n"
>+      "movdqa    %%xmm2,%%xmm0                   \n"
>+      "paddd     %%xmm3,%%xmm0                   \n"
>+      "punpckldq %%xmm0,%%xmm2                   \n"
>+      "punpckldq %%xmm3,%%xmm3                   \n"
>+      "paddd     %%xmm3,%%xmm3                   \n"
>+      "pextrw    $0x3,%%xmm2,%k4                 \n"
>+
>+      LABELALIGN
>+      "2:                                        \n"
>+      "movdqa    %%xmm2,%%xmm1                   \n"
>+      "paddd     %%xmm3,%%xmm2                   \n"
>+      "movq      0x00(%1,%3,4),%%xmm0            \n"
>+      "psrlw     $0x9,%%xmm1                     \n"
>+      "movhps    0x00(%1,%4,4),%%xmm0            \n"
>+      "pshufb    %%xmm5,%%xmm1                   \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "pxor      %%xmm6,%%xmm1                   \n"
>+      "pmaddubsw %%xmm1,%%xmm0                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "pextrw    $0x1,%%xmm2,%k3                 \n"
>+      "pextrw    $0x3,%%xmm2,%k4                 \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movq      %%xmm0,(%0)                     \n"
>+      "lea       0x8(%0),%0                      \n"
>+      "sub       $0x2,%2                         \n"
>+      "jge       2b                              \n"
>+
>+      LABELALIGN
>+      "29:                                       \n"
>+      "add       $0x1,%2                         \n"
>+      "jl        99f                             \n"
>+      "psrlw     $0x9,%%xmm2                     \n"
>+      "movq      0x00(%1,%3,4),%%xmm0            \n"
>+      "pshufb    %%xmm5,%%xmm2                   \n"
>+      "pshufb    %%xmm4,%%xmm0                   \n"
>+      "pxor      %%xmm6,%%xmm2                   \n"
>+      "pmaddubsw %%xmm2,%%xmm0                   \n"
>+      "psrlw     $0x7,%%xmm0                     \n"
>+      "packuswb  %%xmm0,%%xmm0                   \n"
>+      "movd      %%xmm0,(%0)                     \n"
>+
>+      LABELALIGN "99:                            \n"  // clang-format error.
>+
>+      : "+r"(dst_argb),    // %0
>+        "+r"(src_argb),    // %1
>+        "+rm"(dst_width),  // %2
>+        "=&r"(x0),         // %3
>+        "=&r"(x1)          // %4
>+      : "rm"(x),           // %5
>+        "rm"(dx)           // %6
>+      : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
> }
> 
> // Divide num by div and return as 16.16 fixed point result.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_msa.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_msa.cc
>index df1f482be6d9df3d6f43dd93816ce81741fce833..482a521f0d2faae8f5b479abf993b9e95e9b9ed7 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_msa.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_msa.cc
>@@ -127,13 +127,13 @@ void ScaleARGBRowDownEven_MSA(const uint8_t* src_argb,
>   }
> }
> 
>-void ScaleARGBRowDownEvenBox_MSA(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_MSA(const uint8_t* src_argb,
>                                  ptrdiff_t src_stride,
>                                  int src_stepx,
>-                                 uint8* dst_argb,
>+                                 uint8_t* dst_argb,
>                                  int dst_width) {
>   int x;
>-  const uint8* nxt_argb = src_argb + src_stride;
>+  const uint8_t* nxt_argb = src_argb + src_stride;
>   int32_t stepx = src_stepx * 4;
>   int64_t data0, data1, data2, data3;
>   v16u8 src0 = {0}, src1 = {0}, src2 = {0}, src3 = {0};
>@@ -553,8 +553,8 @@ void ScaleAddRow_MSA(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) {
>   }
> }
> 
>-void ScaleFilterCols_MSA(uint8* dst_ptr,
>-                         const uint8* src_ptr,
>+void ScaleFilterCols_MSA(uint8_t* dst_ptr,
>+                         const uint8_t* src_ptr,
>                          int dst_width,
>                          int x,
>                          int dx) {
>@@ -630,13 +630,13 @@ void ScaleFilterCols_MSA(uint8* dst_ptr,
>   }
> }
> 
>-void ScaleARGBCols_MSA(uint8* dst_argb,
>-                       const uint8* src_argb,
>+void ScaleARGBCols_MSA(uint8_t* dst_argb,
>+                       const uint8_t* src_argb,
>                        int dst_width,
>                        int x,
>                        int dx) {
>-  const uint32* src = (const uint32*)(src_argb);
>-  uint32* dst = (uint32*)(dst_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>+  uint32_t* dst = (uint32_t*)(dst_argb);
>   int j;
>   v4i32 x_vec = __msa_fill_w(x);
>   v4i32 dx_vec = __msa_fill_w(dx);
>@@ -657,12 +657,12 @@ void ScaleARGBCols_MSA(uint8* dst_argb,
>   }
> }
> 
>-void ScaleARGBFilterCols_MSA(uint8* dst_argb,
>-                             const uint8* src_argb,
>+void ScaleARGBFilterCols_MSA(uint8_t* dst_argb,
>+                             const uint8_t* src_argb,
>                              int dst_width,
>                              int x,
>                              int dx) {
>-  const uint32* src = (const uint32*)(src_argb);
>+  const uint32_t* src = (const uint32_t*)(src_argb);
>   int j;
>   v4u32 src0, src1, src2, src3;
>   v4u32 vec0, vec1, vec2, vec3;
>@@ -722,9 +722,9 @@ void ScaleARGBFilterCols_MSA(uint8* dst_argb,
>   }
> }
> 
>-void ScaleRowDown34_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_MSA(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width) {
>   int x;
>   (void)src_stride;
>@@ -753,12 +753,12 @@ void ScaleRowDown34_MSA(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_0_Box_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* d,
>+                              uint8_t* d,
>                               int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7, dst0, dst1, dst2;
>   v16u8 vec0, vec1, vec2, vec3, vec4, vec5;
>@@ -847,12 +847,12 @@ void ScaleRowDown34_0_Box_MSA(const uint8* src_ptr,
>   }
> }
> 
>-void ScaleRowDown34_1_Box_MSA(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_MSA(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* d,
>+                              uint8_t* d,
>                               int dst_width) {
>-  const uint8* s = src_ptr;
>-  const uint8* t = src_ptr + src_stride;
>+  const uint8_t* s = src_ptr;
>+  const uint8_t* t = src_ptr + src_stride;
>   int x;
>   v16u8 src0, src1, src2, src3, src4, src5, src6, src7, dst0, dst1, dst2;
>   v16u8 vec0, vec1, vec2, vec3, vec4, vec5;
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon.cc
>index b03a828213d8b99bc369b0da23f28b146b165e50..459a2995dfe7530eaac460864436387d2130224c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon.cc
>@@ -23,9 +23,9 @@ extern "C" {
> // Provided by Fritz Koenig
> 
> // Read 32x1 throw away even pixels, and write 16x1.
>-void ScaleRowDown2_NEON(const uint8* src_ptr,
>+void ScaleRowDown2_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -44,9 +44,9 @@ void ScaleRowDown2_NEON(const uint8* src_ptr,
> }
> 
> // Read 32x1 average down and write 16x1.
>-void ScaleRowDown2Linear_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Linear_NEON(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst,
>+                              uint8_t* dst,
>                               int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -65,9 +65,9 @@ void ScaleRowDown2Linear_NEON(const uint8* src_ptr,
> }
> 
> // Read 32x2 average down and write 16x1.
>-void ScaleRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_width) {
>   asm volatile(
>       // change the stride to row 2 pointer
>@@ -95,9 +95,9 @@ void ScaleRowDown2Box_NEON(const uint8* src_ptr,
>       );
> }
> 
>-void ScaleRowDown4_NEON(const uint8* src_ptr,
>+void ScaleRowDown4_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -113,13 +113,13 @@ void ScaleRowDown4_NEON(const uint8* src_ptr,
>       : "q0", "q1", "memory", "cc");
> }
> 
>-void ScaleRowDown4Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown4Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width) {
>-  const uint8* src_ptr1 = src_ptr + src_stride;
>-  const uint8* src_ptr2 = src_ptr + src_stride * 2;
>-  const uint8* src_ptr3 = src_ptr + src_stride * 3;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride;
>+  const uint8_t* src_ptr2 = src_ptr + src_stride * 2;
>+  const uint8_t* src_ptr3 = src_ptr + src_stride * 3;
>   asm volatile(
>       "1:                                        \n"
>       "vld1.8     {q0}, [%0]!                    \n"  // load up 16x4
>@@ -149,9 +149,9 @@ void ScaleRowDown4Box_NEON(const uint8* src_ptr,
> // Down scale from 4 to 3 pixels. Use the neon multilane read/write
> // to load up the every 4th pixel into a 4 different registers.
> // Point samples 32 pixels to 24 pixels.
>-void ScaleRowDown34_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -168,9 +168,9 @@ void ScaleRowDown34_NEON(const uint8* src_ptr,
>       : "d0", "d1", "d2", "d3", "memory", "cc");
> }
> 
>-void ScaleRowDown34_0_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   asm volatile(
>       "vmov.u8    d24, #3                        \n"
>@@ -225,9 +225,9 @@ void ScaleRowDown34_0_Box_NEON(const uint8* src_ptr,
>         "cc");
> }
> 
>-void ScaleRowDown34_1_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   asm volatile(
>       "vmov.u8    d24, #3                        \n"
>@@ -264,18 +264,21 @@ void ScaleRowDown34_1_Box_NEON(const uint8* src_ptr,
> }
> 
> #define HAS_SCALEROWDOWN38_NEON
>-static uvec8 kShuf38 = {0, 3, 6, 8, 11, 14, 16, 19, 22, 24, 27, 30, 0, 0, 0, 0};
>-static uvec8 kShuf38_2 = {0,  8, 16, 2,  10, 17, 4, 12,
>-                          18, 6, 14, 19, 0,  0,  0, 0};
>-static vec16 kMult38_Div6 = {65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12,
>-                             65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12};
>-static vec16 kMult38_Div9 = {65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18,
>-                             65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18};
>+static const uvec8 kShuf38 = {0,  3,  6,  8,  11, 14, 16, 19,
>+                              22, 24, 27, 30, 0,  0,  0,  0};
>+static const uvec8 kShuf38_2 = {0,  8, 16, 2,  10, 17, 4, 12,
>+                                18, 6, 14, 19, 0,  0,  0, 0};
>+static const vec16 kMult38_Div6 = {65536 / 12, 65536 / 12, 65536 / 12,
>+                                   65536 / 12, 65536 / 12, 65536 / 12,
>+                                   65536 / 12, 65536 / 12};
>+static const vec16 kMult38_Div9 = {65536 / 18, 65536 / 18, 65536 / 18,
>+                                   65536 / 18, 65536 / 18, 65536 / 18,
>+                                   65536 / 18, 65536 / 18};
> 
> // 32 -> 12
>-void ScaleRowDown38_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -296,11 +299,11 @@ void ScaleRowDown38_NEON(const uint8* src_ptr,
> }
> 
> // 32x3 -> 12x1
>-void OMITFP ScaleRowDown38_3_Box_NEON(const uint8* src_ptr,
>+void OMITFP ScaleRowDown38_3_Box_NEON(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>-                                      uint8* dst_ptr,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width) {
>-  const uint8* src_ptr1 = src_ptr + src_stride * 2;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride * 2;
> 
>   asm volatile(
>       "vld1.16    {q13}, [%5]                    \n"
>@@ -408,9 +411,9 @@ void OMITFP ScaleRowDown38_3_Box_NEON(const uint8* src_ptr,
> }
> 
> // 32x2 -> 12x1
>-void ScaleRowDown38_2_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   asm volatile(
>       "vld1.16    {q13}, [%4]                    \n"
>@@ -501,12 +504,12 @@ void ScaleRowDown38_2_Box_NEON(const uint8* src_ptr,
>       : "q0", "q1", "q2", "q3", "q13", "q14", "memory", "cc");
> }
> 
>-void ScaleAddRows_NEON(const uint8* src_ptr,
>+void ScaleAddRows_NEON(const uint8_t* src_ptr,
>                        ptrdiff_t src_stride,
>-                       uint16* dst_ptr,
>+                       uint16_t* dst_ptr,
>                        int src_width,
>                        int src_height) {
>-  const uint8* src_tmp;
>+  const uint8_t* src_tmp;
>   asm volatile(
>       "1:                                        \n"
>       "mov       %0, %1                          \n"
>@@ -544,17 +547,17 @@ void ScaleAddRows_NEON(const uint8* src_ptr,
>   "vld2.8     {d6[" #n "], d7[" #n "]}, [%6] \n"
> 
> // The NEON version mimics this formula (from row_common.cc):
>-// #define BLENDER(a, b, f) (uint8)((int)(a) +
>+// #define BLENDER(a, b, f) (uint8_t)((int)(a) +
> //    ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
> 
>-void ScaleFilterCols_NEON(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void ScaleFilterCols_NEON(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           int dst_width,
>                           int x,
>                           int dx) {
>   int dx_offset[4] = {0, 1, 2, 3};
>   int* tmp = dx_offset;
>-  const uint8* src_tmp = src_ptr;
>+  const uint8_t* src_tmp = src_ptr;
>   asm volatile (
>     "vdup.32    q0, %3                         \n"  // x
>     "vdup.32    q1, %4                         \n"  // dx
>@@ -612,8 +615,8 @@ void ScaleFilterCols_NEON(uint8* dst_ptr,
> #undef LOAD2_DATA8_LANE
> 
> // 16x2 -> 16x1
>-void ScaleFilterRows_NEON(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void ScaleFilterRows_NEON(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>                           int dst_width,
>                           int source_y_fraction) {
>@@ -696,9 +699,9 @@ void ScaleFilterRows_NEON(uint8* dst_ptr,
>       : "q0", "q1", "d4", "d5", "q13", "q14", "memory", "cc");
> }
> 
>-void ScaleARGBRowDown2_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2_NEON(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -724,9 +727,9 @@ void ScaleARGBRowDown2_NEON(const uint8* src_ptr,
> //  54:  f942 038d   vst2.32  {d16-d19}, [r2]!
> //  58:  d1f5        bne.n  46 <ScaleARGBRowDown2_C+0x46>
> 
>-void ScaleARGBRowDown2Linear_NEON(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -746,9 +749,9 @@ void ScaleARGBRowDown2Linear_NEON(const uint8* src_argb,
>       );
> }
> 
>-void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst,
>+                               uint8_t* dst,
>                                int dst_width) {
>   asm volatile(
>       // change the stride to row 2 pointer
>@@ -783,10 +786,10 @@ void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr,
> 
> // Reads 4 pixels at a time.
> // Alignment requirement: src_argb 4 byte aligned.
>-void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEven_NEON(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -808,10 +811,10 @@ void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
> 
> // Reads 4 pixels at a time.
> // Alignment requirement: src_argb 4 byte aligned.
>-void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>                                   int src_stepx,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   asm volatile(
>       "mov        r12, %4, lsl #2                \n"
>@@ -854,13 +857,13 @@ void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>   "add        %3, %3, %4                     \n" \
>   "vld1.32    {" #dn "[" #n "]}, [%6]        \n"
> 
>-void ScaleARGBCols_NEON(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBCols_NEON(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx) {
>   int tmp;
>-  const uint8* src_tmp = src_argb;
>+  const uint8_t* src_tmp = src_argb;
>   asm volatile(
>       "1:                                        \n"
>       // clang-format off
>@@ -897,14 +900,14 @@ void ScaleARGBCols_NEON(uint8* dst_argb,
>   "add        %3, %3, %4                                 \n" \
>   "vld2.32    {" #dn1 "[" #n "], " #dn2 "[" #n "]}, [%6] \n"
> 
>-void ScaleARGBFilterCols_NEON(uint8* dst_argb,
>-                              const uint8* src_argb,
>+void ScaleARGBFilterCols_NEON(uint8_t* dst_argb,
>+                              const uint8_t* src_argb,
>                               int dst_width,
>                               int x,
>                               int dx) {
>   int dx_offset[4] = {0, 1, 2, 3};
>   int* tmp = dx_offset;
>-  const uint8* src_tmp = src_argb;
>+  const uint8_t* src_tmp = src_argb;
>   asm volatile (
>     "vdup.32    q0, %3                         \n"  // x
>     "vdup.32    q1, %4                         \n"  // dx
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon64.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon64.cc
>index 93fe67bf1e6b7364939ebda36dcaa9cd62857bee..494a9cfbfbe3c383e5ebf872c098a832fb82b238 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon64.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_neon64.cc
>@@ -21,9 +21,9 @@ extern "C" {
> #if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
> 
> // Read 32x1 throw away even pixels, and write 16x1.
>-void ScaleRowDown2_NEON(const uint8* src_ptr,
>+void ScaleRowDown2_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst,
>+                        uint8_t* dst,
>                         int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -42,9 +42,9 @@ void ScaleRowDown2_NEON(const uint8* src_ptr,
> }
> 
> // Read 32x1 average down and write 16x1.
>-void ScaleRowDown2Linear_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Linear_NEON(const uint8_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint8* dst,
>+                              uint8_t* dst,
>                               int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -64,9 +64,9 @@ void ScaleRowDown2Linear_NEON(const uint8* src_ptr,
> }
> 
> // Read 32x2 average down and write 16x1.
>-void ScaleRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown2Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst,
>+                           uint8_t* dst,
>                            int dst_width) {
>   asm volatile(
>       // change the stride to row 2 pointer
>@@ -92,9 +92,9 @@ void ScaleRowDown2Box_NEON(const uint8* src_ptr,
>       );
> }
> 
>-void ScaleRowDown4_NEON(const uint8* src_ptr,
>+void ScaleRowDown4_NEON(const uint8_t* src_ptr,
>                         ptrdiff_t src_stride,
>-                        uint8* dst_ptr,
>+                        uint8_t* dst_ptr,
>                         int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -110,13 +110,13 @@ void ScaleRowDown4_NEON(const uint8* src_ptr,
>       : "v0", "v1", "v2", "v3", "memory", "cc");
> }
> 
>-void ScaleRowDown4Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown4Box_NEON(const uint8_t* src_ptr,
>                            ptrdiff_t src_stride,
>-                           uint8* dst_ptr,
>+                           uint8_t* dst_ptr,
>                            int dst_width) {
>-  const uint8* src_ptr1 = src_ptr + src_stride;
>-  const uint8* src_ptr2 = src_ptr + src_stride * 2;
>-  const uint8* src_ptr3 = src_ptr + src_stride * 3;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride;
>+  const uint8_t* src_ptr2 = src_ptr + src_stride * 2;
>+  const uint8_t* src_ptr3 = src_ptr + src_stride * 3;
>   asm volatile(
>       "1:                                        \n"
>       "ld1     {v0.16b}, [%0], #16               \n"  // load up 16x4
>@@ -145,9 +145,9 @@ void ScaleRowDown4Box_NEON(const uint8* src_ptr,
> // Down scale from 4 to 3 pixels. Use the neon multilane read/write
> // to load up the every 4th pixel into a 4 different registers.
> // Point samples 32 pixels to 24 pixels.
>-void ScaleRowDown34_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -164,9 +164,9 @@ void ScaleRowDown34_NEON(const uint8* src_ptr,
>       : "v0", "v1", "v2", "v3", "memory", "cc");
> }
> 
>-void ScaleRowDown34_0_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_0_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   asm volatile(
>       "movi      v20.8b, #3                              \n"
>@@ -221,9 +221,9 @@ void ScaleRowDown34_0_Box_NEON(const uint8* src_ptr,
>         "v19", "v20", "memory", "cc");
> }
> 
>-void ScaleRowDown34_1_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown34_1_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   asm volatile(
>       "movi      v20.8b, #3                              \n"
>@@ -261,18 +261,21 @@ void ScaleRowDown34_1_Box_NEON(const uint8* src_ptr,
>       : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v20", "memory", "cc");
> }
> 
>-static uvec8 kShuf38 = {0, 3, 6, 8, 11, 14, 16, 19, 22, 24, 27, 30, 0, 0, 0, 0};
>-static uvec8 kShuf38_2 = {0,  16, 32, 2,  18, 33, 4, 20,
>-                          34, 6,  22, 35, 0,  0,  0, 0};
>-static vec16 kMult38_Div6 = {65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12,
>-                             65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12};
>-static vec16 kMult38_Div9 = {65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18,
>-                             65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18};
>+static const uvec8 kShuf38 = {0,  3,  6,  8,  11, 14, 16, 19,
>+                              22, 24, 27, 30, 0,  0,  0,  0};
>+static const uvec8 kShuf38_2 = {0,  16, 32, 2,  18, 33, 4, 20,
>+                                34, 6,  22, 35, 0,  0,  0, 0};
>+static const vec16 kMult38_Div6 = {65536 / 12, 65536 / 12, 65536 / 12,
>+                                   65536 / 12, 65536 / 12, 65536 / 12,
>+                                   65536 / 12, 65536 / 12};
>+static const vec16 kMult38_Div9 = {65536 / 18, 65536 / 18, 65536 / 18,
>+                                   65536 / 18, 65536 / 18, 65536 / 18,
>+                                   65536 / 18, 65536 / 18};
> 
> // 32 -> 12
>-void ScaleRowDown38_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_NEON(const uint8_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint8* dst_ptr,
>+                         uint8_t* dst_ptr,
>                          int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -292,11 +295,11 @@ void ScaleRowDown38_NEON(const uint8* src_ptr,
> }
> 
> // 32x3 -> 12x1
>-void OMITFP ScaleRowDown38_3_Box_NEON(const uint8* src_ptr,
>+void OMITFP ScaleRowDown38_3_Box_NEON(const uint8_t* src_ptr,
>                                       ptrdiff_t src_stride,
>-                                      uint8* dst_ptr,
>+                                      uint8_t* dst_ptr,
>                                       int dst_width) {
>-  const uint8* src_ptr1 = src_ptr + src_stride * 2;
>+  const uint8_t* src_ptr1 = src_ptr + src_stride * 2;
>   ptrdiff_t tmp_src_stride = src_stride;
> 
>   asm volatile(
>@@ -412,9 +415,9 @@ void OMITFP ScaleRowDown38_3_Box_NEON(const uint8* src_ptr,
> }
> 
> // 32x2 -> 12x1
>-void ScaleRowDown38_2_Box_NEON(const uint8* src_ptr,
>+void ScaleRowDown38_2_Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst_ptr,
>+                               uint8_t* dst_ptr,
>                                int dst_width) {
>   // TODO(fbarchard): use src_stride directly for clang 3.5+.
>   ptrdiff_t tmp_src_stride = src_stride;
>@@ -512,12 +515,12 @@ void ScaleRowDown38_2_Box_NEON(const uint8* src_ptr,
>         "v19", "v30", "v31", "memory", "cc");
> }
> 
>-void ScaleAddRows_NEON(const uint8* src_ptr,
>+void ScaleAddRows_NEON(const uint8_t* src_ptr,
>                        ptrdiff_t src_stride,
>-                       uint16* dst_ptr,
>+                       uint16_t* dst_ptr,
>                        int src_width,
>                        int src_height) {
>-  const uint8* src_tmp;
>+  const uint8_t* src_tmp;
>   asm volatile(
>       "1:                                        \n"
>       "mov       %0, %1                          \n"
>@@ -555,19 +558,19 @@ void ScaleAddRows_NEON(const uint8* src_ptr,
>   "ld2        {v4.b, v5.b}[" #n "], [%6]     \n"
> 
> // The NEON version mimics this formula (from row_common.cc):
>-// #define BLENDER(a, b, f) (uint8)((int)(a) +
>+// #define BLENDER(a, b, f) (uint8_t)((int)(a) +
> //    ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
> 
>-void ScaleFilterCols_NEON(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void ScaleFilterCols_NEON(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           int dst_width,
>                           int x,
>                           int dx) {
>   int dx_offset[4] = {0, 1, 2, 3};
>   int* tmp = dx_offset;
>-  const uint8* src_tmp = src_ptr;
>-  int64 x64 = (int64)x;    // NOLINT
>-  int64 dx64 = (int64)dx;  // NOLINT
>+  const uint8_t* src_tmp = src_ptr;
>+  int64_t x64 = (int64_t)x;    // NOLINT
>+  int64_t dx64 = (int64_t)dx;  // NOLINT
>   asm volatile (
>     "dup        v0.4s, %w3                     \n"  // x
>     "dup        v1.4s, %w4                     \n"  // dx
>@@ -625,8 +628,8 @@ void ScaleFilterCols_NEON(uint8* dst_ptr,
> #undef LOAD2_DATA8_LANE
> 
> // 16x2 -> 16x1
>-void ScaleFilterRows_NEON(uint8* dst_ptr,
>-                          const uint8* src_ptr,
>+void ScaleFilterRows_NEON(uint8_t* dst_ptr,
>+                          const uint8_t* src_ptr,
>                           ptrdiff_t src_stride,
>                           int dst_width,
>                           int source_y_fraction) {
>@@ -710,9 +713,9 @@ void ScaleFilterRows_NEON(uint8* dst_ptr,
>       : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "memory", "cc");
> }
> 
>-void ScaleARGBRowDown2_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2_NEON(const uint8_t* src_ptr,
>                             ptrdiff_t src_stride,
>-                            uint8* dst,
>+                            uint8_t* dst,
>                             int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -731,9 +734,9 @@ void ScaleARGBRowDown2_NEON(const uint8* src_ptr,
>       );
> }
> 
>-void ScaleARGBRowDown2Linear_NEON(const uint8* src_argb,
>+void ScaleARGBRowDown2Linear_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -754,9 +757,9 @@ void ScaleARGBRowDown2Linear_NEON(const uint8* src_argb,
>       );
> }
> 
>-void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr,
>+void ScaleARGBRowDown2Box_NEON(const uint8_t* src_ptr,
>                                ptrdiff_t src_stride,
>-                               uint8* dst,
>+                               uint8_t* dst,
>                                int dst_width) {
>   asm volatile(
>       // change the stride to row 2 pointer
>@@ -789,10 +792,10 @@ void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr,
> 
> // Reads 4 pixels at a time.
> // Alignment requirement: src_argb 4 byte aligned.
>-void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEven_NEON(const uint8_t* src_argb,
>                                ptrdiff_t src_stride,
>                                int src_stepx,
>-                               uint8* dst_argb,
>+                               uint8_t* dst_argb,
>                                int dst_width) {
>   (void)src_stride;
>   asm volatile(
>@@ -804,10 +807,10 @@ void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
>       "subs       %w2, %w2, #4                   \n"  // 4 pixels per loop.
>       "st1        {v0.16b}, [%1], #16            \n"
>       "b.gt       1b                             \n"
>-      : "+r"(src_argb),              // %0
>-        "+r"(dst_argb),              // %1
>-        "+r"(dst_width)              // %2
>-      : "r"((int64)(src_stepx * 4))  // %3
>+      : "+r"(src_argb),                // %0
>+        "+r"(dst_argb),                // %1
>+        "+r"(dst_width)                // %2
>+      : "r"((int64_t)(src_stepx * 4))  // %3
>       : "memory", "cc", "v0");
> }
> 
>@@ -815,10 +818,10 @@ void ScaleARGBRowDownEven_NEON(const uint8* src_argb,
> // Alignment requirement: src_argb 4 byte aligned.
> // TODO(Yang Zhang): Might be worth another optimization pass in future.
> // It could be upgraded to 8 pixels at a time to start with.
>-void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>+void ScaleARGBRowDownEvenBox_NEON(const uint8_t* src_argb,
>                                   ptrdiff_t src_stride,
>                                   int src_stepx,
>-                                  uint8* dst_argb,
>+                                  uint8_t* dst_argb,
>                                   int dst_width) {
>   asm volatile(
>       "add        %1, %1, %0                     \n"
>@@ -848,11 +851,11 @@ void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>       "subs       %w3, %w3, #4                   \n"  // 4 pixels per loop.
>       "st1     {v0.16b}, [%2], #16               \n"
>       "b.gt       1b                             \n"
>-      : "+r"(src_argb),              // %0
>-        "+r"(src_stride),            // %1
>-        "+r"(dst_argb),              // %2
>-        "+r"(dst_width)              // %3
>-      : "r"((int64)(src_stepx * 4))  // %4
>+      : "+r"(src_argb),                // %0
>+        "+r"(src_stride),              // %1
>+        "+r"(dst_argb),                // %2
>+        "+r"(dst_width)                // %3
>+      : "r"((int64_t)(src_stepx * 4))  // %4
>       : "memory", "cc", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16");
> }
> 
>@@ -864,15 +867,15 @@ void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb,
>   "add        %3, %3, %4                     \n" \
>   "ld1        {" #vn ".s}[" #n "], [%6]      \n"
> 
>-void ScaleARGBCols_NEON(uint8* dst_argb,
>-                        const uint8* src_argb,
>+void ScaleARGBCols_NEON(uint8_t* dst_argb,
>+                        const uint8_t* src_argb,
>                         int dst_width,
>                         int x,
>                         int dx) {
>-  const uint8* src_tmp = src_argb;
>-  int64 x64 = (int64)x;    // NOLINT
>-  int64 dx64 = (int64)dx;  // NOLINT
>-  int64 tmp64;
>+  const uint8_t* src_tmp = src_argb;
>+  int64_t x64 = (int64_t)x;    // NOLINT
>+  int64_t dx64 = (int64_t)dx;  // NOLINT
>+  int64_t tmp64;
>   asm volatile(
>       "1:                                        \n"
>       // clang-format off
>@@ -909,16 +912,16 @@ void ScaleARGBCols_NEON(uint8* dst_argb,
>   "add        %3, %3, %4                            \n" \
>   "ld2        {" #vn1 ".s, " #vn2 ".s}[" #n "], [%6]  \n"
> 
>-void ScaleARGBFilterCols_NEON(uint8* dst_argb,
>-                              const uint8* src_argb,
>+void ScaleARGBFilterCols_NEON(uint8_t* dst_argb,
>+                              const uint8_t* src_argb,
>                               int dst_width,
>                               int x,
>                               int dx) {
>   int dx_offset[4] = {0, 1, 2, 3};
>   int* tmp = dx_offset;
>-  const uint8* src_tmp = src_argb;
>-  int64 x64 = (int64)x;    // NOLINT
>-  int64 dx64 = (int64)dx;  // NOLINT
>+  const uint8_t* src_tmp = src_argb;
>+  int64_t x64 = (int64_t)x;    // NOLINT
>+  int64_t dx64 = (int64_t)dx;  // NOLINT
>   asm volatile (
>     "dup        v0.4s, %w3                     \n"  // x
>     "dup        v1.4s, %w4                     \n"  // dx
>@@ -975,9 +978,9 @@ void ScaleARGBFilterCols_NEON(uint8* dst_argb,
> #undef LOAD2_DATA32_LANE
> 
> // Read 16x2 average down and write 8x1.
>-void ScaleRowDown2Box_16_NEON(const uint16* src_ptr,
>+void ScaleRowDown2Box_16_NEON(const uint16_t* src_ptr,
>                               ptrdiff_t src_stride,
>-                              uint16* dst,
>+                              uint16_t* dst,
>                               int dst_width) {
>   asm volatile(
>       // change the stride to row 2 pointer
>@@ -1005,9 +1008,9 @@ void ScaleRowDown2Box_16_NEON(const uint16* src_ptr,
> 
> // Read 8x2 upsample with filtering and write 16x1.
> // Actually reads an extra pixel, so 9x2.
>-void ScaleRowUp2_16_NEON(const uint16* src_ptr,
>+void ScaleRowUp2_16_NEON(const uint16_t* src_ptr,
>                          ptrdiff_t src_stride,
>-                         uint16* dst,
>+                         uint16_t* dst,
>                          int dst_width) {
>   asm volatile(
>       "add        %1, %0, %1, lsl #1             \n"  // ptr + stide * 2
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_win.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_win.cc
>index b5fd6638262f98aea296171847413c2061b43b3f..c5fc86f3e96cd449efd66d5b4a7b060328f8c595 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_win.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/scale_win.cc
>@@ -20,77 +20,78 @@ extern "C" {
> #if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
> 
> // Offsets for source bytes 0 to 9
>-static uvec8 kShuf0 = {0,   1,   3,   4,   5,   7,   8,   9,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf0 = {0,   1,   3,   4,   5,   7,   8,   9,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12.
>-static uvec8 kShuf1 = {3,   4,   5,   7,   8,   9,   11,  12,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf1 = {3,   4,   5,   7,   8,   9,   11,  12,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
>-static uvec8 kShuf2 = {5,   7,   8,   9,   11,  12,  13,  15,
>-                       128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf2 = {5,   7,   8,   9,   11,  12,  13,  15,
>+                             128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Offsets for source bytes 0 to 10
>-static uvec8 kShuf01 = {0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10};
>+static const uvec8 kShuf01 = {0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10};
> 
> // Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13.
>-static uvec8 kShuf11 = {2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13};
>+static const uvec8 kShuf11 = {2, 3, 4, 5,  5,  6,  6,  7,
>+                              8, 9, 9, 10, 10, 11, 12, 13};
> 
> // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
>-static uvec8 kShuf21 = {5,  6,  6,  7,  8,  9,  9,  10,
>-                        10, 11, 12, 13, 13, 14, 14, 15};
>+static const uvec8 kShuf21 = {5,  6,  6,  7,  8,  9,  9,  10,
>+                              10, 11, 12, 13, 13, 14, 14, 15};
> 
> // Coefficients for source bytes 0 to 10
>-static uvec8 kMadd01 = {3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2};
>+static const uvec8 kMadd01 = {3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2};
> 
> // Coefficients for source bytes 10 to 21
>-static uvec8 kMadd11 = {1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1};
>+static const uvec8 kMadd11 = {1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1};
> 
> // Coefficients for source bytes 21 to 31
>-static uvec8 kMadd21 = {2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3};
>+static const uvec8 kMadd21 = {2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3};
> 
> // Coefficients for source bytes 21 to 31
>-static vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2};
>+static const vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2};
> 
>-static uvec8 kShuf38a = {0,   3,   6,   8,   11,  14,  128, 128,
>-                         128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShuf38a = {0,   3,   6,   8,   11,  14,  128, 128,
>+                               128, 128, 128, 128, 128, 128, 128, 128};
> 
>-static uvec8 kShuf38b = {128, 128, 128, 128, 128, 128, 0,   3,
>-                         6,   8,   11,  14,  128, 128, 128, 128};
>+static const uvec8 kShuf38b = {128, 128, 128, 128, 128, 128, 0,   3,
>+                               6,   8,   11,  14,  128, 128, 128, 128};
> 
> // Arrange words 0,3,6 into 0,1,2
>-static uvec8 kShufAc = {0,   1,   6,   7,   12,  13,  128, 128,
>-                        128, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAc = {0,   1,   6,   7,   12,  13,  128, 128,
>+                              128, 128, 128, 128, 128, 128, 128, 128};
> 
> // Arrange words 0,3,6 into 3,4,5
>-static uvec8 kShufAc3 = {128, 128, 128, 128, 128, 128, 0,   1,
>-                         6,   7,   12,  13,  128, 128, 128, 128};
>+static const uvec8 kShufAc3 = {128, 128, 128, 128, 128, 128, 0,   1,
>+                               6,   7,   12,  13,  128, 128, 128, 128};
> 
> // Scaling values for boxes of 3x3 and 2x3
>-static uvec16 kScaleAc33 = {65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9,
>-                            65536 / 9, 65536 / 6, 0,         0};
>+static const uvec16 kScaleAc33 = {65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9,
>+                                  65536 / 9, 65536 / 6, 0,         0};
> 
> // Arrange first value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb0 = {0,  128, 3,  128, 6,   128, 8,   128,
>-                         11, 128, 14, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb0 = {0,  128, 3,  128, 6,   128, 8,   128,
>+                               11, 128, 14, 128, 128, 128, 128, 128};
> 
> // Arrange second value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb1 = {1,  128, 4,  128, 7,   128, 9,   128,
>-                         12, 128, 15, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb1 = {1,  128, 4,  128, 7,   128, 9,   128,
>+                               12, 128, 15, 128, 128, 128, 128, 128};
> 
> // Arrange third value for pixels 0,1,2,3,4,5
>-static uvec8 kShufAb2 = {2,  128, 5,   128, 128, 128, 10,  128,
>-                         13, 128, 128, 128, 128, 128, 128, 128};
>+static const uvec8 kShufAb2 = {2,  128, 5,   128, 128, 128, 10,  128,
>+                               13, 128, 128, 128, 128, 128, 128, 128};
> 
> // Scaling values for boxes of 3x2 and 2x2
>-static uvec16 kScaleAb2 = {65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3,
>-                           65536 / 3, 65536 / 2, 0,         0};
>+static const uvec16 kScaleAb2 = {65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3,
>+                                 65536 / 3, 65536 / 2, 0,         0};
> 
> // Reads 32 pixels, throws half away and writes 16 pixels.
>-__declspec(naked) void ScaleRowDown2_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2_SSSE3(const uint8_t* src_ptr,
>                                            ptrdiff_t src_stride,
>-                                           uint8* dst_ptr,
>+                                           uint8_t* dst_ptr,
>                                            int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -115,9 +116,9 @@ __declspec(naked) void ScaleRowDown2_SSSE3(const uint8* src_ptr,
> }
> 
> // Blends 32x1 rectangle to 16x1.
>-__declspec(naked) void ScaleRowDown2Linear_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2Linear_SSSE3(const uint8_t* src_ptr,
>                                                  ptrdiff_t src_stride,
>-                                                 uint8* dst_ptr,
>+                                                 uint8_t* dst_ptr,
>                                                  int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -149,9 +150,9 @@ __declspec(naked) void ScaleRowDown2Linear_SSSE3(const uint8* src_ptr,
> }
> 
> // Blends 32x2 rectangle to 16x1.
>-__declspec(naked) void ScaleRowDown2Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2Box_SSSE3(const uint8_t* src_ptr,
>                                               ptrdiff_t src_stride,
>-                                              uint8* dst_ptr,
>+                                              uint8_t* dst_ptr,
>                                               int dst_width) {
>   __asm {
>     push       esi
>@@ -194,9 +195,9 @@ __declspec(naked) void ScaleRowDown2Box_SSSE3(const uint8* src_ptr,
> 
> #ifdef HAS_SCALEROWDOWN2_AVX2
> // Reads 64 pixels, throws half away and writes 32 pixels.
>-__declspec(naked) void ScaleRowDown2_AVX2(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2_AVX2(const uint8_t* src_ptr,
>                                           ptrdiff_t src_stride,
>-                                          uint8* dst_ptr,
>+                                          uint8_t* dst_ptr,
>                                           int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -223,9 +224,9 @@ __declspec(naked) void ScaleRowDown2_AVX2(const uint8* src_ptr,
> }
> 
> // Blends 64x1 rectangle to 32x1.
>-__declspec(naked) void ScaleRowDown2Linear_AVX2(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2Linear_AVX2(const uint8_t* src_ptr,
>                                                 ptrdiff_t src_stride,
>-                                                uint8* dst_ptr,
>+                                                uint8_t* dst_ptr,
>                                                 int dst_width) {
>   __asm {
>     mov         eax, [esp + 4]  // src_ptr
>@@ -261,9 +262,9 @@ __declspec(naked) void ScaleRowDown2Linear_AVX2(const uint8* src_ptr,
> // For rounding, average = (sum + 2) / 4
> // becomes average((sum >> 1), 0)
> // Blends 64x2 rectangle to 32x1.
>-__declspec(naked) void ScaleRowDown2Box_AVX2(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown2Box_AVX2(const uint8_t* src_ptr,
>                                              ptrdiff_t src_stride,
>-                                             uint8* dst_ptr,
>+                                             uint8_t* dst_ptr,
>                                              int dst_width) {
>   __asm {
>     push        esi
>@@ -308,9 +309,9 @@ __declspec(naked) void ScaleRowDown2Box_AVX2(const uint8* src_ptr,
> #endif  // HAS_SCALEROWDOWN2_AVX2
> 
> // Point samples 32 pixels to 8 pixels.
>-__declspec(naked) void ScaleRowDown4_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown4_SSSE3(const uint8_t* src_ptr,
>                                            ptrdiff_t src_stride,
>-                                           uint8* dst_ptr,
>+                                           uint8_t* dst_ptr,
>                                            int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -340,9 +341,9 @@ __declspec(naked) void ScaleRowDown4_SSSE3(const uint8* src_ptr,
> }
> 
> // Blends 32x4 rectangle to 8x1.
>-__declspec(naked) void ScaleRowDown4Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown4Box_SSSE3(const uint8_t* src_ptr,
>                                               ptrdiff_t src_stride,
>-                                              uint8* dst_ptr,
>+                                              uint8_t* dst_ptr,
>                                               int dst_width) {
>   __asm {
>     push       esi
>@@ -399,9 +400,9 @@ __declspec(naked) void ScaleRowDown4Box_SSSE3(const uint8* src_ptr,
> 
> #ifdef HAS_SCALEROWDOWN4_AVX2
> // Point samples 64 pixels to 16 pixels.
>-__declspec(naked) void ScaleRowDown4_AVX2(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown4_AVX2(const uint8_t* src_ptr,
>                                           ptrdiff_t src_stride,
>-                                          uint8* dst_ptr,
>+                                          uint8_t* dst_ptr,
>                                           int dst_width) {
>   __asm {
>     mov         eax, [esp + 4]  // src_ptr
>@@ -434,9 +435,9 @@ __declspec(naked) void ScaleRowDown4_AVX2(const uint8* src_ptr,
> }
> 
> // Blends 64x4 rectangle to 16x1.
>-__declspec(naked) void ScaleRowDown4Box_AVX2(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown4Box_AVX2(const uint8_t* src_ptr,
>                                              ptrdiff_t src_stride,
>-                                             uint8* dst_ptr,
>+                                             uint8_t* dst_ptr,
>                                              int dst_width) {
>   __asm {
>     push        esi
>@@ -498,9 +499,9 @@ __declspec(naked) void ScaleRowDown4Box_AVX2(const uint8* src_ptr,
> // Produces three 8 byte values. For each 8 bytes, 16 bytes are read.
> // Then shuffled to do the scaling.
> 
>-__declspec(naked) void ScaleRowDown34_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown34_SSSE3(const uint8_t* src_ptr,
>                                             ptrdiff_t src_stride,
>-                                            uint8* dst_ptr,
>+                                            uint8_t* dst_ptr,
>                                             int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]   // src_ptr
>@@ -546,9 +547,9 @@ __declspec(naked) void ScaleRowDown34_SSSE3(const uint8* src_ptr,
> // xmm7 kRound34
> 
> // Note that movdqa+palign may be better than movdqu.
>-__declspec(naked) void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown34_1_Box_SSSE3(const uint8_t* src_ptr,
>                                                   ptrdiff_t src_stride,
>-                                                  uint8* dst_ptr,
>+                                                  uint8_t* dst_ptr,
>                                                   int dst_width) {
>   __asm {
>     push       esi
>@@ -603,9 +604,9 @@ __declspec(naked) void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
> }
> 
> // Note that movdqa+palign may be better than movdqu.
>-__declspec(naked) void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown34_0_Box_SSSE3(const uint8_t* src_ptr,
>                                                   ptrdiff_t src_stride,
>-                                                  uint8* dst_ptr,
>+                                                  uint8_t* dst_ptr,
>                                                   int dst_width) {
>   __asm {
>     push       esi
>@@ -665,9 +666,9 @@ __declspec(naked) void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
> // 3/8 point sampler
> 
> // Scale 32 pixels to 12
>-__declspec(naked) void ScaleRowDown38_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown38_SSSE3(const uint8_t* src_ptr,
>                                             ptrdiff_t src_stride,
>-                                            uint8* dst_ptr,
>+                                            uint8_t* dst_ptr,
>                                             int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -697,9 +698,9 @@ __declspec(naked) void ScaleRowDown38_SSSE3(const uint8* src_ptr,
> }
> 
> // Scale 16x3 pixels to 6x1 with interpolation
>-__declspec(naked) void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown38_3_Box_SSSE3(const uint8_t* src_ptr,
>                                                   ptrdiff_t src_stride,
>-                                                  uint8* dst_ptr,
>+                                                  uint8_t* dst_ptr,
>                                                   int dst_width) {
>   __asm {
>     push       esi
>@@ -762,9 +763,9 @@ __declspec(naked) void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
> }
> 
> // Scale 16x2 pixels to 6x1 with interpolation
>-__declspec(naked) void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
>+__declspec(naked) void ScaleRowDown38_2_Box_SSSE3(const uint8_t* src_ptr,
>                                                   ptrdiff_t src_stride,
>-                                                  uint8* dst_ptr,
>+                                                  uint8_t* dst_ptr,
>                                                   int dst_width) {
>   __asm {
>     push       esi
>@@ -807,8 +808,8 @@ __declspec(naked) void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
> }
> 
> // Reads 16 bytes and accumulates to 16 shorts at a time.
>-__declspec(naked) void ScaleAddRow_SSE2(const uint8* src_ptr,
>-                                        uint16* dst_ptr,
>+__declspec(naked) void ScaleAddRow_SSE2(const uint8_t* src_ptr,
>+                                        uint16_t* dst_ptr,
>                                         int src_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_ptr
>@@ -838,8 +839,8 @@ __declspec(naked) void ScaleAddRow_SSE2(const uint8* src_ptr,
> 
> #ifdef HAS_SCALEADDROW_AVX2
> // Reads 32 bytes and accumulates to 32 shorts at a time.
>-__declspec(naked) void ScaleAddRow_AVX2(const uint8* src_ptr,
>-                                        uint16* dst_ptr,
>+__declspec(naked) void ScaleAddRow_AVX2(const uint8_t* src_ptr,
>+                                        uint16_t* dst_ptr,
>                                         int src_width) {
>   __asm {
>     mov         eax, [esp + 4]  // src_ptr
>@@ -870,16 +871,16 @@ __declspec(naked) void ScaleAddRow_AVX2(const uint8* src_ptr,
> 
> // Constant for making pixels signed to avoid pmaddubsw
> // saturation.
>-static uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
>-                        0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
>+static const uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
>+                              0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
> 
> // Constant for making pixels unsigned and adding .5 for rounding.
>-static uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040,
>-                         0x4040, 0x4040, 0x4040, 0x4040};
>+static const uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040,
>+                               0x4040, 0x4040, 0x4040, 0x4040};
> 
> // Bilinear column filtering. SSSE3 version.
>-__declspec(naked) void ScaleFilterCols_SSSE3(uint8* dst_ptr,
>-                                             const uint8* src_ptr,
>+__declspec(naked) void ScaleFilterCols_SSSE3(uint8_t* dst_ptr,
>+                                             const uint8_t* src_ptr,
>                                              int dst_width,
>                                              int x,
>                                              int dx) {
>@@ -964,8 +965,8 @@ __declspec(naked) void ScaleFilterCols_SSSE3(uint8* dst_ptr,
> }
> 
> // Reads 16 pixels, duplicates them and writes 32 pixels.
>-__declspec(naked) void ScaleColsUp2_SSE2(uint8* dst_ptr,
>-                                         const uint8* src_ptr,
>+__declspec(naked) void ScaleColsUp2_SSE2(uint8_t* dst_ptr,
>+                                         const uint8_t* src_ptr,
>                                          int dst_width,
>                                          int x,
>                                          int dx) {
>@@ -991,9 +992,9 @@ __declspec(naked) void ScaleColsUp2_SSE2(uint8* dst_ptr,
> }
> 
> // Reads 8 pixels, throws half away and writes 4 even pixels (0, 2, 4, 6)
>-__declspec(naked) void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
>+__declspec(naked) void ScaleARGBRowDown2_SSE2(const uint8_t* src_argb,
>                                               ptrdiff_t src_stride,
>-                                              uint8* dst_argb,
>+                                              uint8_t* dst_argb,
>                                               int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]   // src_argb
>@@ -1016,9 +1017,9 @@ __declspec(naked) void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
> }
> 
> // Blends 8x1 rectangle to 4x1.
>-__declspec(naked) void ScaleARGBRowDown2Linear_SSE2(const uint8* src_argb,
>+__declspec(naked) void ScaleARGBRowDown2Linear_SSE2(const uint8_t* src_argb,
>                                                     ptrdiff_t src_stride,
>-                                                    uint8* dst_argb,
>+                                                    uint8_t* dst_argb,
>                                                     int dst_width) {
>   __asm {
>     mov        eax, [esp + 4]  // src_argb
>@@ -1044,9 +1045,9 @@ __declspec(naked) void ScaleARGBRowDown2Linear_SSE2(const uint8* src_argb,
> }
> 
> // Blends 8x2 rectangle to 4x1.
>-__declspec(naked) void ScaleARGBRowDown2Box_SSE2(const uint8* src_argb,
>+__declspec(naked) void ScaleARGBRowDown2Box_SSE2(const uint8_t* src_argb,
>                                                  ptrdiff_t src_stride,
>-                                                 uint8* dst_argb,
>+                                                 uint8_t* dst_argb,
>                                                  int dst_width) {
>   __asm {
>     push       esi
>@@ -1078,10 +1079,10 @@ __declspec(naked) void ScaleARGBRowDown2Box_SSE2(const uint8* src_argb,
> }
> 
> // Reads 4 pixels at a time.
>-__declspec(naked) void ScaleARGBRowDownEven_SSE2(const uint8* src_argb,
>+__declspec(naked) void ScaleARGBRowDownEven_SSE2(const uint8_t* src_argb,
>                                                  ptrdiff_t src_stride,
>                                                  int src_stepx,
>-                                                 uint8* dst_argb,
>+                                                 uint8_t* dst_argb,
>                                                  int dst_width) {
>   __asm {
>     push       ebx
>@@ -1115,10 +1116,10 @@ __declspec(naked) void ScaleARGBRowDownEven_SSE2(const uint8* src_argb,
> }
> 
> // Blends four 2x2 to 4x1.
>-__declspec(naked) void ScaleARGBRowDownEvenBox_SSE2(const uint8* src_argb,
>+__declspec(naked) void ScaleARGBRowDownEvenBox_SSE2(const uint8_t* src_argb,
>                                                     ptrdiff_t src_stride,
>                                                     int src_stepx,
>-                                                    uint8* dst_argb,
>+                                                    uint8_t* dst_argb,
>                                                     int dst_width) {
>   __asm {
>     push       ebx
>@@ -1163,8 +1164,8 @@ __declspec(naked) void ScaleARGBRowDownEvenBox_SSE2(const uint8* src_argb,
> }
> 
> // Column scaling unfiltered. SSE2 version.
>-__declspec(naked) void ScaleARGBCols_SSE2(uint8* dst_argb,
>-                                          const uint8* src_argb,
>+__declspec(naked) void ScaleARGBCols_SSE2(uint8_t* dst_argb,
>+                                          const uint8_t* src_argb,
>                                           int dst_width,
>                                           int x,
>                                           int dx) {
>@@ -1246,18 +1247,18 @@ __declspec(naked) void ScaleARGBCols_SSE2(uint8* dst_argb,
> // TODO(fbarchard): Port to Neon
> 
> // Shuffle table for arranging 2 pixels into pairs for pmaddubsw
>-static uvec8 kShuffleColARGB = {
>+static const uvec8 kShuffleColARGB = {
>     0u, 4u,  1u, 5u,  2u,  6u,  3u,  7u,  // bbggrraa 1st pixel
>     8u, 12u, 9u, 13u, 10u, 14u, 11u, 15u  // bbggrraa 2nd pixel
> };
> 
> // Shuffle table for duplicating 2 fractions into 8 bytes each
>-static uvec8 kShuffleFractions = {
>+static const uvec8 kShuffleFractions = {
>     0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u,
> };
> 
>-__declspec(naked) void ScaleARGBFilterCols_SSSE3(uint8* dst_argb,
>-                                                 const uint8* src_argb,
>+__declspec(naked) void ScaleARGBFilterCols_SSSE3(uint8_t* dst_argb,
>+                                                 const uint8_t* src_argb,
>                                                  int dst_width,
>                                                  int x,
>                                                  int dx) {
>@@ -1329,8 +1330,8 @@ __declspec(naked) void ScaleARGBFilterCols_SSSE3(uint8* dst_argb,
> }
> 
> // Reads 4 pixels, duplicates them and writes 8 pixels.
>-__declspec(naked) void ScaleARGBColsUp2_SSE2(uint8* dst_argb,
>-                                             const uint8* src_argb,
>+__declspec(naked) void ScaleARGBColsUp2_SSE2(uint8_t* dst_argb,
>+                                             const uint8_t* src_argb,
>                                              int dst_width,
>                                              int x,
>                                              int dx) {
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/video_common.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/video_common.cc
>index 3e9c6a295022ca72f070f2460b43f3b857de017d..92384c050cdabb84ef2bfc25aa05332a6c45b1ef 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/video_common.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/source/video_common.cc
>@@ -15,14 +15,13 @@ namespace libyuv {
> extern "C" {
> #endif
> 
>-#define ARRAY_SIZE(x) (int)(sizeof(x) / sizeof(x[0]))
>-
> struct FourCCAliasEntry {
>-  uint32 alias;
>-  uint32 canonical;
>+  uint32_t alias;
>+  uint32_t canonical;
> };
> 
>-static const struct FourCCAliasEntry kFourCCAliases[] = {
>+#define NUM_ALIASES 18
>+static const struct FourCCAliasEntry kFourCCAliases[NUM_ALIASES] = {
>     {FOURCC_IYUV, FOURCC_I420},
>     {FOURCC_YU12, FOURCC_I420},
>     {FOURCC_YU16, FOURCC_I422},
>@@ -46,9 +45,9 @@ static const struct FourCCAliasEntry kFourCCAliases[] = {
> //  {FOURCC_BGRA, FOURCC_ARGB},  // kCMPixelFormat_32BGRA
> 
> LIBYUV_API
>-uint32 CanonicalFourCC(uint32 fourcc) {
>+uint32_t CanonicalFourCC(uint32_t fourcc) {
>   int i;
>-  for (i = 0; i < ARRAY_SIZE(kFourCCAliases); ++i) {
>+  for (i = 0; i < NUM_ALIASES; ++i) {
>     if (kFourCCAliases[i].alias == fourcc) {
>       return kFourCCAliases[i].canonical;
>     }
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/autoroller/roll_deps.py b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/autoroller/roll_deps.py
>index efea81e07b120f39f05b5884cc977df684d1394b..09ddc40e730ff9c4fb93e8d4bcac5e4492b9a071 100755
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/autoroller/roll_deps.py
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/autoroller/roll_deps.py
>@@ -207,7 +207,13 @@ def BuildDepsentryDict(deps_dict):
>   """Builds a dict of paths to DepsEntry objects from a raw parsed deps dict."""
>   result = {}
>   def AddDepsEntries(deps_subdict):
>-    for path, deps_url in deps_subdict.iteritems():
>+    for path, deps_url_spec in deps_subdict.iteritems():
>+      # The deps url is either an URL and a condition, or just the URL.
>+      if isinstance(deps_url_spec, dict):
>+        deps_url = deps_url_spec['url']
>+      else:
>+        deps_url = deps_url_spec
>+
>       if not result.has_key(path):
>         url, revision = deps_url.split('@') if deps_url else (None, None)
>         result[path] = DepsEntry(path, url, revision)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/get_landmines.py b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/get_landmines.py
>index 3dc78bb973f67d0d6744e0fab46dbe989d3083d2..c554f04a39aae81782e67544194207b6de3bfc91 100755
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/get_landmines.py
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/get_landmines.py
>@@ -12,20 +12,8 @@ This file emits the list of reasons why a particular build needs to be clobbered
> (or a list of 'landmines').
> """
> 
>-import os
> import sys
> 
>-script_dir = os.path.dirname(os.path.realpath(__file__))
>-checkout_root = os.path.abspath(os.path.join(script_dir, os.pardir))
>-sys.path.insert(0, os.path.join(checkout_root, 'build'))
>-import landmine_utils
>-
>-
>-distributor = landmine_utils.distributor
>-gyp_defines = landmine_utils.gyp_defines
>-gyp_msvs_version = landmine_utils.gyp_msvs_version
>-platform = landmine_utils.platform
>-
> 
> def print_landmines():
>   """
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.bat b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.bat
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.py b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.py
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.sh b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/chrome_tests.sh
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/locate_valgrind.sh b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/locate_valgrind.sh
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/memcheck_analyze.py b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/memcheck_analyze.py
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/valgrind.sh b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/valgrind.sh
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/valgrind_test.py b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/tools_libyuv/valgrind/valgrind_test.py
>old mode 100644
>new mode 100755
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/basictypes_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/basictypes_test.cc
>index 89f7644d58e540ea5d28c9b3d4b868f4e46434a8..9aaa2dcd989fec8841b700e4cde5836ce839165c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/basictypes_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/basictypes_test.cc
>@@ -13,25 +13,15 @@
> 
> namespace libyuv {
> 
>-TEST_F(LibYUVBaseTest, Endian) {
>-  uint16 v16 = 0x1234u;
>-  uint8 first_byte = *reinterpret_cast<uint8*>(&v16);
>-#if defined(LIBYUV_LITTLE_ENDIAN)
>-  EXPECT_EQ(0x34u, first_byte);
>-#else
>-  EXPECT_EQ(0x12u, first_byte);
>-#endif
>-}
>-
> TEST_F(LibYUVBaseTest, SizeOfTypes) {
>-  int8 i8 = -1;
>-  uint8 u8 = 1u;
>-  int16 i16 = -1;
>-  uint16 u16 = 1u;
>-  int32 i32 = -1;
>-  uint32 u32 = 1u;
>-  int64 i64 = -1;
>-  uint64 u64 = 1u;
>+  int8_t i8 = -1;
>+  uint8_t u8 = 1u;
>+  int16_t i16 = -1;
>+  uint16_t u16 = 1u;
>+  int32_t i32 = -1;
>+  uint32_t u32 = 1u;
>+  int64_t i64 = -1;
>+  uint64_t u64 = 1u;
>   EXPECT_EQ(1u, sizeof(i8));
>   EXPECT_EQ(1u, sizeof(u8));
>   EXPECT_EQ(2u, sizeof(i16));
>@@ -50,11 +40,4 @@ TEST_F(LibYUVBaseTest, SizeOfTypes) {
>   EXPECT_LT(0u, u64);
> }
> 
>-TEST_F(LibYUVBaseTest, SizeOfConstants) {
>-  EXPECT_EQ(8u, sizeof(INT64_C(0)));
>-  EXPECT_EQ(8u, sizeof(UINT64_C(0)));
>-  EXPECT_EQ(8u, sizeof(INT64_C(0x1234567887654321)));
>-  EXPECT_EQ(8u, sizeof(UINT64_C(0x8765432112345678)));
>-}
>-
> }  // namespace libyuv
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/color_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/color_test.cc
>index 30b6411283f12a4e93c00275b421d652476172a4..4bb448d56fe1bba7bda82192a5c53dce99d286dd 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/color_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/color_test.cc
>@@ -63,10 +63,10 @@ namespace libyuv {
>                                                                                \
>     /* The test is overall for color conversion matrix being reversible, so */ \
>     /* this initializes the pixel with 2x2 blocks to eliminate subsampling. */ \
>-    uint8* p = orig_y;                                                         \
>+    uint8_t* p = orig_y;                                                       \
>     for (int y = 0; y < benchmark_height_ - HS1; y += HS) {                    \
>       for (int x = 0; x < benchmark_width_ - 1; x += 2) {                      \
>-        uint8 r = static_cast<uint8>(fastrand());                              \
>+        uint8_t r = static_cast<uint8_t>(fastrand());                          \
>         p[0] = r;                                                              \
>         p[1] = r;                                                              \
>         p[HN] = r;                                                             \
>@@ -74,7 +74,7 @@ namespace libyuv {
>         p += 2;                                                                \
>       }                                                                        \
>       if (benchmark_width_ & 1) {                                              \
>-        uint8 r = static_cast<uint8>(fastrand());                              \
>+        uint8_t r = static_cast<uint8_t>(fastrand());                          \
>         p[0] = r;                                                              \
>         p[HN] = r;                                                             \
>         p += 1;                                                                \
>@@ -83,13 +83,13 @@ namespace libyuv {
>     }                                                                          \
>     if ((benchmark_height_ & 1) && HS == 2) {                                  \
>       for (int x = 0; x < benchmark_width_ - 1; x += 2) {                      \
>-        uint8 r = static_cast<uint8>(fastrand());                              \
>+        uint8_t r = static_cast<uint8_t>(fastrand());                          \
>         p[0] = r;                                                              \
>         p[1] = r;                                                              \
>         p += 2;                                                                \
>       }                                                                        \
>       if (benchmark_width_ & 1) {                                              \
>-        uint8 r = static_cast<uint8>(fastrand());                              \
>+        uint8_t r = static_cast<uint8_t>(fastrand());                          \
>         p[0] = r;                                                              \
>         p += 1;                                                                \
>       }                                                                        \
>@@ -147,10 +147,10 @@ static void YUVToRGB(int y, int u, int v, int* r, int* g, int* b) {
>   const int kPixels = kWidth * kHeight;
>   const int kHalfPixels = ((kWidth + 1) / 2) * ((kHeight + 1) / 2);
> 
>-  SIMD_ALIGNED(uint8 orig_y[16]);
>-  SIMD_ALIGNED(uint8 orig_u[8]);
>-  SIMD_ALIGNED(uint8 orig_v[8]);
>-  SIMD_ALIGNED(uint8 orig_pixels[16 * 4]);
>+  SIMD_ALIGNED(uint8_t orig_y[16]);
>+  SIMD_ALIGNED(uint8_t orig_u[8]);
>+  SIMD_ALIGNED(uint8_t orig_v[8]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[16 * 4]);
>   memset(orig_y, y, kPixels);
>   memset(orig_u, u, kHalfPixels);
>   memset(orig_v, v, kHalfPixels);
>@@ -170,10 +170,10 @@ static void YUVJToRGB(int y, int u, int v, int* r, int* g, int* b) {
>   const int kPixels = kWidth * kHeight;
>   const int kHalfPixels = ((kWidth + 1) / 2) * ((kHeight + 1) / 2);
> 
>-  SIMD_ALIGNED(uint8 orig_y[16]);
>-  SIMD_ALIGNED(uint8 orig_u[8]);
>-  SIMD_ALIGNED(uint8 orig_v[8]);
>-  SIMD_ALIGNED(uint8 orig_pixels[16 * 4]);
>+  SIMD_ALIGNED(uint8_t orig_y[16]);
>+  SIMD_ALIGNED(uint8_t orig_u[8]);
>+  SIMD_ALIGNED(uint8_t orig_v[8]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[16 * 4]);
>   memset(orig_y, y, kPixels);
>   memset(orig_u, u, kHalfPixels);
>   memset(orig_v, v, kHalfPixels);
>@@ -192,8 +192,8 @@ static void YToRGB(int y, int* r, int* g, int* b) {
>   const int kHeight = 1;
>   const int kPixels = kWidth * kHeight;
> 
>-  SIMD_ALIGNED(uint8 orig_y[16]);
>-  SIMD_ALIGNED(uint8 orig_pixels[16 * 4]);
>+  SIMD_ALIGNED(uint8_t orig_y[16]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[16 * 4]);
>   memset(orig_y, y, kPixels);
> 
>   /* YUV converted to ARGB. */
>@@ -209,8 +209,8 @@ static void YJToRGB(int y, int* r, int* g, int* b) {
>   const int kHeight = 1;
>   const int kPixels = kWidth * kHeight;
> 
>-  SIMD_ALIGNED(uint8 orig_y[16]);
>-  SIMD_ALIGNED(uint8 orig_pixels[16 * 4]);
>+  SIMD_ALIGNED(uint8_t orig_y[16]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[16 * 4]);
>   memset(orig_y, y, kPixels);
> 
>   /* YUV converted to ARGB. */
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/compare_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/compare_test.cc
>index ff39b2b0f609baaecc47b98e3afeecad85086599..136254e169b807f5d3e8a48c71fd5af1ad75bb5a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/compare_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/compare_test.cc
>@@ -22,8 +22,10 @@
> namespace libyuv {
> 
> // hash seed of 5381 recommended.
>-static uint32 ReferenceHashDjb2(const uint8* src, uint64 count, uint32 seed) {
>-  uint32 hash = seed;
>+static uint32_t ReferenceHashDjb2(const uint8_t* src,
>+                                  uint64_t count,
>+                                  uint32_t seed) {
>+  uint32_t hash = seed;
>   if (count > 0) {
>     do {
>       hash = hash * 33 + *src++;
>@@ -41,8 +43,8 @@ TEST_F(LibYUVCompareTest, Djb2_Test) {
>       "The quick brown fox jumps over the lazy dog"
>       " and feels as if he were in the seventh heaven of typography"
>       " together with Hermann Zapf";
>-  uint32 foxhash = HashDjb2(reinterpret_cast<const uint8*>(fox), 131, 5381);
>-  const uint32 kExpectedFoxHash = 2611006483u;
>+  uint32_t foxhash = HashDjb2(reinterpret_cast<const uint8_t*>(fox), 131, 5381);
>+  const uint32_t kExpectedFoxHash = 2611006483u;
>   EXPECT_EQ(kExpectedFoxHash, foxhash);
> 
>   for (int i = 0; i < kMaxTest; ++i) {
>@@ -50,8 +52,8 @@ TEST_F(LibYUVCompareTest, Djb2_Test) {
>     src_b[i] = (fastrand() & 0xff);
>   }
>   // Compare different buffers. Expect hash is different.
>-  uint32 h1 = HashDjb2(src_a, kMaxTest, 5381);
>-  uint32 h2 = HashDjb2(src_b, kMaxTest, 5381);
>+  uint32_t h1 = HashDjb2(src_a, kMaxTest, 5381);
>+  uint32_t h2 = HashDjb2(src_b, kMaxTest, 5381);
>   EXPECT_NE(h1, h2);
> 
>   // Make last half same. Expect hash is different.
>@@ -124,8 +126,8 @@ TEST_F(LibYUVCompareTest, BenchmarkDjb2_Opt) {
>   for (int i = 0; i < kMaxTest; ++i) {
>     src_a[i] = i;
>   }
>-  uint32 h2 = ReferenceHashDjb2(src_a, kMaxTest, 5381);
>-  uint32 h1;
>+  uint32_t h2 = ReferenceHashDjb2(src_a, kMaxTest, 5381);
>+  uint32_t h1;
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>     h1 = HashDjb2(src_a, kMaxTest, 5381);
>   }
>@@ -139,8 +141,8 @@ TEST_F(LibYUVCompareTest, BenchmarkDjb2_Unaligned) {
>   for (int i = 0; i < kMaxTest; ++i) {
>     src_a[i + 1] = i;
>   }
>-  uint32 h2 = ReferenceHashDjb2(src_a + 1, kMaxTest, 5381);
>-  uint32 h1;
>+  uint32_t h2 = ReferenceHashDjb2(src_a + 1, kMaxTest, 5381);
>+  uint32_t h1;
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>     h1 = HashDjb2(src_a + 1, kMaxTest, 5381);
>   }
>@@ -149,7 +151,7 @@ TEST_F(LibYUVCompareTest, BenchmarkDjb2_Unaligned) {
> }
> 
> TEST_F(LibYUVCompareTest, BenchmarkARGBDetect_Opt) {
>-  uint32 fourcc;
>+  uint32_t fourcc;
>   const int kMaxTest = benchmark_width_ * benchmark_height_ * 4;
>   align_buffer_page_end(src_a, kMaxTest);
>   for (int i = 0; i < kMaxTest; ++i) {
>@@ -159,12 +161,12 @@ TEST_F(LibYUVCompareTest, BenchmarkARGBDetect_Opt) {
>   src_a[0] = 0;
>   fourcc = ARGBDetect(src_a, benchmark_width_ * 4, benchmark_width_,
>                       benchmark_height_);
>-  EXPECT_EQ(static_cast<uint32>(libyuv::FOURCC_BGRA), fourcc);
>+  EXPECT_EQ(static_cast<uint32_t>(libyuv::FOURCC_BGRA), fourcc);
>   src_a[0] = 255;
>   src_a[3] = 0;
>   fourcc = ARGBDetect(src_a, benchmark_width_ * 4, benchmark_width_,
>                       benchmark_height_);
>-  EXPECT_EQ(static_cast<uint32>(libyuv::FOURCC_ARGB), fourcc);
>+  EXPECT_EQ(static_cast<uint32_t>(libyuv::FOURCC_ARGB), fourcc);
>   src_a[3] = 255;
> 
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>@@ -177,7 +179,7 @@ TEST_F(LibYUVCompareTest, BenchmarkARGBDetect_Opt) {
> }
> 
> TEST_F(LibYUVCompareTest, BenchmarkARGBDetect_Unaligned) {
>-  uint32 fourcc;
>+  uint32_t fourcc;
>   const int kMaxTest = benchmark_width_ * benchmark_height_ * 4 + 1;
>   align_buffer_page_end(src_a, kMaxTest);
>   for (int i = 1; i < kMaxTest; ++i) {
>@@ -187,12 +189,12 @@ TEST_F(LibYUVCompareTest, BenchmarkARGBDetect_Unaligned) {
>   src_a[0 + 1] = 0;
>   fourcc = ARGBDetect(src_a + 1, benchmark_width_ * 4, benchmark_width_,
>                       benchmark_height_);
>-  EXPECT_EQ(static_cast<uint32>(libyuv::FOURCC_BGRA), fourcc);
>+  EXPECT_EQ(static_cast<uint32_t>(libyuv::FOURCC_BGRA), fourcc);
>   src_a[0 + 1] = 255;
>   src_a[3 + 1] = 0;
>   fourcc = ARGBDetect(src_a + 1, benchmark_width_ * 4, benchmark_width_,
>                       benchmark_height_);
>-  EXPECT_EQ(static_cast<uint32>(libyuv::FOURCC_ARGB), fourcc);
>+  EXPECT_EQ(static_cast<uint32_t>(libyuv::FOURCC_ARGB), fourcc);
>   src_a[3 + 1] = 255;
> 
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>@@ -214,14 +216,14 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance_Opt) {
>   // Test known value
>   memcpy(src_a, "test0123test4567", 16);
>   memcpy(src_b, "tick0123tock4567", 16);
>-  uint32 h1 = HammingDistance_C(src_a, src_b, 16);
>+  uint32_t h1 = HammingDistance_C(src_a, src_b, 16);
>   EXPECT_EQ(16u, h1);
> 
>   // Test C vs OPT on random buffer
>   MemRandomize(src_a, kMaxWidth);
>   MemRandomize(src_b, kMaxWidth);
> 
>-  uint32 h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
>+  uint32_t h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
> 
>   int count =
>       benchmark_iterations_ *
>@@ -273,14 +275,14 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance_C) {
>   // Test known value
>   memcpy(src_a, "test0123test4567", 16);
>   memcpy(src_b, "tick0123tock4567", 16);
>-  uint32 h1 = HammingDistance_C(src_a, src_b, 16);
>+  uint32_t h1 = HammingDistance_C(src_a, src_b, 16);
>   EXPECT_EQ(16u, h1);
> 
>   // Test C vs OPT on random buffer
>   MemRandomize(src_a, kMaxWidth);
>   MemRandomize(src_b, kMaxWidth);
> 
>-  uint32 h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
>+  uint32_t h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
> 
>   int count =
>       benchmark_iterations_ *
>@@ -304,14 +306,14 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance) {
> 
>   memcpy(src_a, "test0123test4567", 16);
>   memcpy(src_b, "tick0123tock4567", 16);
>-  uint64 h1 = ComputeHammingDistance(src_a, src_b, 16);
>+  uint64_t h1 = ComputeHammingDistance(src_a, src_b, 16);
>   EXPECT_EQ(16u, h1);
> 
>   // Test C vs OPT on random buffer
>   MemRandomize(src_a, kMaxWidth);
>   MemRandomize(src_b, kMaxWidth);
> 
>-  uint32 h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
>+  uint32_t h0 = HammingDistance_C(src_a, src_b, kMaxWidth);
> 
>   int count =
>       benchmark_iterations_ *
>@@ -337,14 +339,14 @@ static const int kMaxOptCount = (1 << (32 - 3)) - 64;  // 536870848
> #endif
> 
> TEST_F(LibYUVCompareTest, TestHammingDistance_Opt) {
>-  uint32 h1 = 0;
>-  const int kMaxWidth = benchmark_width_ * benchmark_height_;
>+  uint32_t h1 = 0;
>+  const int kMaxWidth = (benchmark_width_ * benchmark_height_ + 31) & ~31;
>   align_buffer_page_end(src_a, kMaxWidth);
>   align_buffer_page_end(src_b, kMaxWidth);
>   memset(src_a, 255u, kMaxWidth);
>   memset(src_b, 0u, kMaxWidth);
> 
>-  uint64 h0 = ComputeHammingDistance(src_a, src_b, kMaxWidth);
>+  uint64_t h0 = ComputeHammingDistance(src_a, src_b, kMaxWidth);
>   EXPECT_EQ(kMaxWidth * 8ULL, h0);
> 
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>@@ -385,7 +387,7 @@ TEST_F(LibYUVCompareTest, TestHammingDistance_Opt) {
>   if (kMaxWidth <= kMaxOptCount) {
>     EXPECT_EQ(kMaxWidth * 8U, h1);
>   } else {
>-    if (kMaxWidth * 8ULL != static_cast<uint64>(h1)) {
>+    if (kMaxWidth * 8ULL != static_cast<uint64_t>(h1)) {
>       printf(
>           "warning - HammingDistance_Opt %u does not match %llu "
>           "but length of %u is longer than guaranteed.\n",
>@@ -408,7 +410,7 @@ TEST_F(LibYUVCompareTest, TestHammingDistance) {
>   memset(src_a, 255u, benchmark_width_ * benchmark_height_);
>   memset(src_b, 0, benchmark_width_ * benchmark_height_);
> 
>-  uint64 h1 = 0;
>+  uint64_t h1 = 0;
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>     h1 = ComputeHammingDistance(src_a, src_b,
>                                 benchmark_width_ * benchmark_height_);
>@@ -428,7 +430,7 @@ TEST_F(LibYUVCompareTest, BenchmarkSumSquareError_Opt) {
> 
>   memcpy(src_a, "test0123test4567", 16);
>   memcpy(src_b, "tick0123tock4567", 16);
>-  uint64 h1 = ComputeSumSquareError(src_a, src_b, 16);
>+  uint64_t h1 = ComputeSumSquareError(src_a, src_b, 16);
>   EXPECT_EQ(790u, h1);
> 
>   for (int i = 0; i < kMaxWidth; ++i) {
>@@ -458,7 +460,7 @@ TEST_F(LibYUVCompareTest, SumSquareError) {
>   memset(src_a, 0, kMaxWidth);
>   memset(src_b, 0, kMaxWidth);
> 
>-  uint64 err;
>+  uint64_t err;
>   err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
> 
>   EXPECT_EQ(0u, err);
>@@ -480,10 +482,10 @@ TEST_F(LibYUVCompareTest, SumSquareError) {
>   }
> 
>   MaskCpuFlags(disable_cpu_flags_);
>-  uint64 c_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
>+  uint64_t c_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
> 
>   MaskCpuFlags(benchmark_cpu_info_);
>-  uint64 opt_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
>+  uint64_t opt_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
> 
>   EXPECT_EQ(c_err, opt_err);
> 
>@@ -502,9 +504,10 @@ TEST_F(LibYUVCompareTest, BenchmarkPsnr_Opt) {
>   MaskCpuFlags(benchmark_cpu_info_);
> 
>   double opt_time = get_time();
>-  for (int i = 0; i < benchmark_iterations_; ++i)
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>     CalcFramePsnr(src_a, benchmark_width_, src_b, benchmark_width_,
>                   benchmark_width_, benchmark_height_);
>+  }
> 
>   opt_time = (get_time() - opt_time) / benchmark_iterations_;
>   printf("BenchmarkPsnr_Opt - %8.2f us opt\n", opt_time * 1e6);
>@@ -526,9 +529,10 @@ TEST_F(LibYUVCompareTest, BenchmarkPsnr_Unaligned) {
>   MaskCpuFlags(benchmark_cpu_info_);
> 
>   double opt_time = get_time();
>-  for (int i = 0; i < benchmark_iterations_; ++i)
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>     CalcFramePsnr(src_a + 1, benchmark_width_, src_b, benchmark_width_,
>                   benchmark_width_, benchmark_height_);
>+  }
> 
>   opt_time = (get_time() - opt_time) / benchmark_iterations_;
>   printf("BenchmarkPsnr_Opt - %8.2f us opt\n", opt_time * 1e6);
>@@ -627,9 +631,10 @@ TEST_F(LibYUVCompareTest, DISABLED_BenchmarkSsim_Opt) {
>   MaskCpuFlags(benchmark_cpu_info_);
> 
>   double opt_time = get_time();
>-  for (int i = 0; i < benchmark_iterations_; ++i)
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>     CalcFrameSsim(src_a, benchmark_width_, src_b, benchmark_width_,
>                   benchmark_width_, benchmark_height_);
>+  }
> 
>   opt_time = (get_time() - opt_time) / benchmark_iterations_;
>   printf("BenchmarkSsim_Opt - %8.2f us opt\n", opt_time * 1e6);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/convert_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/convert_test.cc
>index 56b6364e5eb830c6b84cf2d55c79443ab037d761..39281ae08076d7d5ed2d209ab36998f269817fbd 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/convert_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/convert_test.cc
>@@ -8,9 +8,12 @@
>  *  be found in the AUTHORS file in the root of the source tree.
>  */
> 
>+#include <assert.h>
> #include <stdlib.h>
> #include <time.h>
> 
>+#include "libyuv/row.h" /* For ARGBToAR30Row_AVX2 */
>+
> #include "libyuv/basic_types.h"
> #include "libyuv/compare.h"
> #include "libyuv/convert.h"
>@@ -26,102 +29,91 @@
> #include "libyuv/rotate.h"
> #include "libyuv/video_common.h"
> 
>+#if defined(__arm__) || defined(__aarch64__)
>+// arm version subsamples by summing 4 pixels then multiplying by matrix with
>+// 4x smaller coefficients which are rounded to nearest integer.
>+#define ARM_YUV_ERROR 4
>+#else
>+#define ARM_YUV_ERROR 0
>+#endif
>+
> namespace libyuv {
> 
>+// Alias to copy pixels as is
>+#define AR30ToAR30 ARGBCopy
>+#define ABGRToABGR ARGBCopy
>+
> #define SUBSAMPLE(v, a) ((((v) + (a)-1)) / (a))
> 
>-#define TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y,          \
>-                       FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, W1280, N, NEG, OFF)  \
>+// Planar test
>+
>+#define TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X,         \
>+                       SRC_SUBSAMP_Y, FMT_PLANAR, DST_T, DST_BPC,             \
>+                       DST_SUBSAMP_X, DST_SUBSAMP_Y, W1280, N, NEG, OFF)      \
>   TEST_F(LibYUVConvertTest, SRC_FMT_PLANAR##To##FMT_PLANAR##N) {              \
>+    static_assert(SRC_BPC == 1 || SRC_BPC == 2, "SRC BPC unsupported");       \
>+    static_assert(DST_BPC == 1 || DST_BPC == 2, "DST BPC unsupported");       \
>+    static_assert(SRC_SUBSAMP_X == 1 || SRC_SUBSAMP_X == 2,                   \
>+                  "DST SRC_SUBSAMP_X unsupported");                           \
>+    static_assert(SRC_SUBSAMP_Y == 1 || SRC_SUBSAMP_Y == 2,                   \
>+                  "DST SRC_SUBSAMP_Y unsupported");                           \
>+    static_assert(DST_SUBSAMP_X == 1 || DST_SUBSAMP_X == 2,                   \
>+                  "DST DST_SUBSAMP_X unsupported");                           \
>+    static_assert(DST_SUBSAMP_Y == 1 || DST_SUBSAMP_Y == 2,                   \
>+                  "DST DST_SUBSAMP_Y unsupported");                           \
>     const int kWidth = ((W1280) > 0) ? (W1280) : 1;                           \
>     const int kHeight = benchmark_height_;                                    \
>-    align_buffer_page_end(src_y, kWidth* kHeight + OFF);                      \
>-    align_buffer_page_end(src_u, SUBSAMPLE(kWidth, SRC_SUBSAMP_X) *           \
>-                                         SUBSAMPLE(kHeight, SRC_SUBSAMP_Y) +  \
>-                                     OFF);                                    \
>-    align_buffer_page_end(src_v, SUBSAMPLE(kWidth, SRC_SUBSAMP_X) *           \
>-                                         SUBSAMPLE(kHeight, SRC_SUBSAMP_Y) +  \
>-                                     OFF);                                    \
>-    align_buffer_page_end(dst_y_c, kWidth* kHeight);                          \
>-    align_buffer_page_end(dst_u_c, SUBSAMPLE(kWidth, SUBSAMP_X) *             \
>-                                       SUBSAMPLE(kHeight, SUBSAMP_Y));        \
>-    align_buffer_page_end(dst_v_c, SUBSAMPLE(kWidth, SUBSAMP_X) *             \
>-                                       SUBSAMPLE(kHeight, SUBSAMP_Y));        \
>-    align_buffer_page_end(dst_y_opt, kWidth* kHeight);                        \
>-    align_buffer_page_end(dst_u_opt, SUBSAMPLE(kWidth, SUBSAMP_X) *           \
>-                                         SUBSAMPLE(kHeight, SUBSAMP_Y));      \
>-    align_buffer_page_end(dst_v_opt, SUBSAMPLE(kWidth, SUBSAMP_X) *           \
>-                                         SUBSAMPLE(kHeight, SUBSAMP_Y));      \
>-    for (int i = 0; i < kHeight; ++i)                                         \
>-      for (int j = 0; j < kWidth; ++j)                                        \
>-        src_y[i * kWidth + j + OFF] = (fastrand() & 0xff);                    \
>-    for (int i = 0; i < SUBSAMPLE(kHeight, SRC_SUBSAMP_Y); ++i) {             \
>-      for (int j = 0; j < SUBSAMPLE(kWidth, SRC_SUBSAMP_X); ++j) {            \
>-        src_u[(i * SUBSAMPLE(kWidth, SRC_SUBSAMP_X)) + j + OFF] =             \
>-            (fastrand() & 0xff);                                              \
>-        src_v[(i * SUBSAMPLE(kWidth, SRC_SUBSAMP_X)) + j + OFF] =             \
>-            (fastrand() & 0xff);                                              \
>-      }                                                                       \
>-    }                                                                         \
>-    memset(dst_y_c, 1, kWidth* kHeight);                                      \
>-    memset(dst_u_c, 2,                                                        \
>-           SUBSAMPLE(kWidth, SUBSAMP_X) * SUBSAMPLE(kHeight, SUBSAMP_Y));     \
>-    memset(dst_v_c, 3,                                                        \
>-           SUBSAMPLE(kWidth, SUBSAMP_X) * SUBSAMPLE(kHeight, SUBSAMP_Y));     \
>-    memset(dst_y_opt, 101, kWidth* kHeight);                                  \
>-    memset(dst_u_opt, 102,                                                    \
>-           SUBSAMPLE(kWidth, SUBSAMP_X) * SUBSAMPLE(kHeight, SUBSAMP_Y));     \
>-    memset(dst_v_opt, 103,                                                    \
>-           SUBSAMPLE(kWidth, SUBSAMP_X) * SUBSAMPLE(kHeight, SUBSAMP_Y));     \
>+    const int kSrcHalfWidth = SUBSAMPLE(kWidth, SRC_SUBSAMP_X);               \
>+    const int kSrcHalfHeight = SUBSAMPLE(kHeight, SRC_SUBSAMP_Y);             \
>+    const int kDstHalfWidth = SUBSAMPLE(kWidth, DST_SUBSAMP_X);               \
>+    const int kDstHalfHeight = SUBSAMPLE(kHeight, DST_SUBSAMP_Y);             \
>+    align_buffer_page_end(src_y, kWidth* kHeight* SRC_BPC + OFF);             \
>+    align_buffer_page_end(src_u,                                              \
>+                          kSrcHalfWidth* kSrcHalfHeight* SRC_BPC + OFF);      \
>+    align_buffer_page_end(src_v,                                              \
>+                          kSrcHalfWidth* kSrcHalfHeight* SRC_BPC + OFF);      \
>+    align_buffer_page_end(dst_y_c, kWidth* kHeight* DST_BPC);                 \
>+    align_buffer_page_end(dst_u_c, kDstHalfWidth* kDstHalfHeight* DST_BPC);   \
>+    align_buffer_page_end(dst_v_c, kDstHalfWidth* kDstHalfHeight* DST_BPC);   \
>+    align_buffer_page_end(dst_y_opt, kWidth* kHeight* DST_BPC);               \
>+    align_buffer_page_end(dst_u_opt, kDstHalfWidth* kDstHalfHeight* DST_BPC); \
>+    align_buffer_page_end(dst_v_opt, kDstHalfWidth* kDstHalfHeight* DST_BPC); \
>+    MemRandomize(src_y + OFF, kWidth * kHeight * SRC_BPC);                    \
>+    MemRandomize(src_u + OFF, kSrcHalfWidth * kSrcHalfHeight * SRC_BPC);      \
>+    MemRandomize(src_v + OFF, kSrcHalfWidth * kSrcHalfHeight * SRC_BPC);      \
>+    memset(dst_y_c, 1, kWidth* kHeight* DST_BPC);                             \
>+    memset(dst_u_c, 2, kDstHalfWidth* kDstHalfHeight* DST_BPC);               \
>+    memset(dst_v_c, 3, kDstHalfWidth* kDstHalfHeight* DST_BPC);               \
>+    memset(dst_y_opt, 101, kWidth* kHeight* DST_BPC);                         \
>+    memset(dst_u_opt, 102, kDstHalfWidth* kDstHalfHeight* DST_BPC);           \
>+    memset(dst_v_opt, 103, kDstHalfWidth* kDstHalfHeight* DST_BPC);           \
>     MaskCpuFlags(disable_cpu_flags_);                                         \
>     SRC_FMT_PLANAR##To##FMT_PLANAR(                                           \
>-        src_y + OFF, kWidth, src_u + OFF, SUBSAMPLE(kWidth, SRC_SUBSAMP_X),   \
>-        src_v + OFF, SUBSAMPLE(kWidth, SRC_SUBSAMP_X), dst_y_c, kWidth,       \
>-        dst_u_c, SUBSAMPLE(kWidth, SUBSAMP_X), dst_v_c,                       \
>-        SUBSAMPLE(kWidth, SUBSAMP_X), kWidth, NEG kHeight);                   \
>+        reinterpret_cast<SRC_T*>(src_y + OFF), kWidth,                        \
>+        reinterpret_cast<SRC_T*>(src_u + OFF), kSrcHalfWidth,                 \
>+        reinterpret_cast<SRC_T*>(src_v + OFF), kSrcHalfWidth,                 \
>+        reinterpret_cast<DST_T*>(dst_y_c), kWidth,                            \
>+        reinterpret_cast<DST_T*>(dst_u_c), kDstHalfWidth,                     \
>+        reinterpret_cast<DST_T*>(dst_v_c), kDstHalfWidth, kWidth,             \
>+        NEG kHeight);                                                         \
>     MaskCpuFlags(benchmark_cpu_info_);                                        \
>     for (int i = 0; i < benchmark_iterations_; ++i) {                         \
>       SRC_FMT_PLANAR##To##FMT_PLANAR(                                         \
>-          src_y + OFF, kWidth, src_u + OFF, SUBSAMPLE(kWidth, SRC_SUBSAMP_X), \
>-          src_v + OFF, SUBSAMPLE(kWidth, SRC_SUBSAMP_X), dst_y_opt, kWidth,   \
>-          dst_u_opt, SUBSAMPLE(kWidth, SUBSAMP_X), dst_v_opt,                 \
>-          SUBSAMPLE(kWidth, SUBSAMP_X), kWidth, NEG kHeight);                 \
>+          reinterpret_cast<SRC_T*>(src_y + OFF), kWidth,                      \
>+          reinterpret_cast<SRC_T*>(src_u + OFF), kSrcHalfWidth,               \
>+          reinterpret_cast<SRC_T*>(src_v + OFF), kSrcHalfWidth,               \
>+          reinterpret_cast<DST_T*>(dst_y_opt), kWidth,                        \
>+          reinterpret_cast<DST_T*>(dst_u_opt), kDstHalfWidth,                 \
>+          reinterpret_cast<DST_T*>(dst_v_opt), kDstHalfWidth, kWidth,         \
>+          NEG kHeight);                                                       \
>     }                                                                         \
>-    int max_diff = 0;                                                         \
>-    for (int i = 0; i < kHeight; ++i) {                                       \
>-      for (int j = 0; j < kWidth; ++j) {                                      \
>-        int abs_diff = abs(static_cast<int>(dst_y_c[i * kWidth + j]) -        \
>-                           static_cast<int>(dst_y_opt[i * kWidth + j]));      \
>-        if (abs_diff > max_diff) {                                            \
>-          max_diff = abs_diff;                                                \
>-        }                                                                     \
>-      }                                                                       \
>-    }                                                                         \
>-    EXPECT_EQ(0, max_diff);                                                   \
>-    for (int i = 0; i < SUBSAMPLE(kHeight, SUBSAMP_Y); ++i) {                 \
>-      for (int j = 0; j < SUBSAMPLE(kWidth, SUBSAMP_X); ++j) {                \
>-        int abs_diff = abs(                                                   \
>-            static_cast<int>(dst_u_c[i * SUBSAMPLE(kWidth, SUBSAMP_X) + j]) - \
>-            static_cast<int>(                                                 \
>-                dst_u_opt[i * SUBSAMPLE(kWidth, SUBSAMP_X) + j]));            \
>-        if (abs_diff > max_diff) {                                            \
>-          max_diff = abs_diff;                                                \
>-        }                                                                     \
>-      }                                                                       \
>+    for (int i = 0; i < kHeight * kWidth * DST_BPC; ++i) {                    \
>+      EXPECT_EQ(dst_y_c[i], dst_y_opt[i]);                                    \
>     }                                                                         \
>-    EXPECT_LE(max_diff, 3);                                                   \
>-    for (int i = 0; i < SUBSAMPLE(kHeight, SUBSAMP_Y); ++i) {                 \
>-      for (int j = 0; j < SUBSAMPLE(kWidth, SUBSAMP_X); ++j) {                \
>-        int abs_diff = abs(                                                   \
>-            static_cast<int>(dst_v_c[i * SUBSAMPLE(kWidth, SUBSAMP_X) + j]) - \
>-            static_cast<int>(                                                 \
>-                dst_v_opt[i * SUBSAMPLE(kWidth, SUBSAMP_X) + j]));            \
>-        if (abs_diff > max_diff) {                                            \
>-          max_diff = abs_diff;                                                \
>-        }                                                                     \
>-      }                                                                       \
>+    for (int i = 0; i < kDstHalfWidth * kDstHalfHeight * DST_BPC; ++i) {      \
>+      EXPECT_EQ(dst_u_c[i], dst_u_opt[i]);                                    \
>+      EXPECT_EQ(dst_v_c[i], dst_v_opt[i]);                                    \
>     }                                                                         \
>-    EXPECT_LE(max_diff, 3);                                                   \
>     free_aligned_buffer_page_end(dst_y_c);                                    \
>     free_aligned_buffer_page_end(dst_u_c);                                    \
>     free_aligned_buffer_page_end(dst_v_c);                                    \
>@@ -133,25 +125,36 @@ namespace libyuv {
>     free_aligned_buffer_page_end(src_v);                                      \
>   }
> 
>-#define TESTPLANARTOP(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y,        \
>-                      FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y)                    \
>-  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, FMT_PLANAR, \
>-                 SUBSAMP_X, SUBSAMP_Y, benchmark_width_ - 4, _Any, +, 0)   \
>-  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, FMT_PLANAR, \
>-                 SUBSAMP_X, SUBSAMP_Y, benchmark_width_, _Unaligned, +, 1) \
>-  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, FMT_PLANAR, \
>-                 SUBSAMP_X, SUBSAMP_Y, benchmark_width_, _Invert, -, 0)    \
>-  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, FMT_PLANAR, \
>-                 SUBSAMP_X, SUBSAMP_Y, benchmark_width_, _Opt, +, 0)
>-
>-TESTPLANARTOP(I420, 2, 2, I420, 2, 2)
>-TESTPLANARTOP(I422, 2, 1, I420, 2, 2)
>-TESTPLANARTOP(I444, 1, 1, I420, 2, 2)
>-TESTPLANARTOP(I420, 2, 2, I422, 2, 1)
>-TESTPLANARTOP(I420, 2, 2, I444, 1, 1)
>-TESTPLANARTOP(I420, 2, 2, I420Mirror, 2, 2)
>-TESTPLANARTOP(I422, 2, 1, I422, 2, 1)
>-TESTPLANARTOP(I444, 1, 1, I444, 1, 1)
>+#define TESTPLANARTOP(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X,           \
>+                      SRC_SUBSAMP_Y, FMT_PLANAR, DST_T, DST_BPC,               \
>+                      DST_SUBSAMP_X, DST_SUBSAMP_Y)                            \
>+  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \
>+                 FMT_PLANAR, DST_T, DST_BPC, DST_SUBSAMP_X, DST_SUBSAMP_Y,     \
>+                 benchmark_width_ - 4, _Any, +, 0)                             \
>+  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \
>+                 FMT_PLANAR, DST_T, DST_BPC, DST_SUBSAMP_X, DST_SUBSAMP_Y,     \
>+                 benchmark_width_, _Unaligned, +, 1)                           \
>+  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \
>+                 FMT_PLANAR, DST_T, DST_BPC, DST_SUBSAMP_X, DST_SUBSAMP_Y,     \
>+                 benchmark_width_, _Invert, -, 0)                              \
>+  TESTPLANARTOPI(SRC_FMT_PLANAR, SRC_T, SRC_BPC, SRC_SUBSAMP_X, SRC_SUBSAMP_Y, \
>+                 FMT_PLANAR, DST_T, DST_BPC, DST_SUBSAMP_X, DST_SUBSAMP_Y,     \
>+                 benchmark_width_, _Opt, +, 0)
>+
>+TESTPLANARTOP(I420, uint8_t, 1, 2, 2, I420, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(I422, uint8_t, 1, 2, 1, I420, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(I444, uint8_t, 1, 1, 1, I420, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(I420, uint8_t, 1, 2, 2, I422, uint8_t, 1, 2, 1)
>+TESTPLANARTOP(I420, uint8_t, 1, 2, 2, I444, uint8_t, 1, 1, 1)
>+TESTPLANARTOP(I420, uint8_t, 1, 2, 2, I420Mirror, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(I422, uint8_t, 1, 2, 1, I422, uint8_t, 1, 2, 1)
>+TESTPLANARTOP(I444, uint8_t, 1, 1, 1, I444, uint8_t, 1, 1, 1)
>+TESTPLANARTOP(I010, uint16_t, 2, 2, 2, I010, uint16_t, 2, 2, 2)
>+TESTPLANARTOP(I010, uint16_t, 2, 2, 2, I420, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(I420, uint8_t, 1, 2, 2, I010, uint16_t, 2, 2, 2)
>+TESTPLANARTOP(H010, uint16_t, 2, 2, 2, H010, uint16_t, 2, 2, 2)
>+TESTPLANARTOP(H010, uint16_t, 2, 2, 2, H420, uint8_t, 1, 2, 2)
>+TESTPLANARTOP(H420, uint8_t, 1, 2, 2, H010, uint16_t, 2, 2, 2)
> 
> // Test Android 420 to I420
> #define TESTAPLANARTOPI(SRC_FMT_PLANAR, PIXEL_STRIDE, SRC_SUBSAMP_X,          \
>@@ -175,8 +178,8 @@ TESTPLANARTOP(I444, 1, 1, I444, 1, 1)
>                                          SUBSAMPLE(kHeight, SUBSAMP_Y));      \
>     align_buffer_page_end(dst_v_opt, SUBSAMPLE(kWidth, SUBSAMP_X) *           \
>                                          SUBSAMPLE(kHeight, SUBSAMP_Y));      \
>-    uint8* src_u = src_uv + OFF_U;                                            \
>-    uint8* src_v = src_uv + (PIXEL_STRIDE == 1 ? kSizeUV : OFF_V);            \
>+    uint8_t* src_u = src_uv + OFF_U;                                          \
>+    uint8_t* src_v = src_uv + (PIXEL_STRIDE == 1 ? kSizeUV : OFF_V);          \
>     int src_stride_uv = SUBSAMPLE(kWidth, SUBSAMP_X) * PIXEL_STRIDE;          \
>     for (int i = 0; i < kHeight; ++i)                                         \
>       for (int j = 0; j < kWidth; ++j)                                        \
>@@ -491,110 +494,100 @@ TESTBIPLANARTOP(NV21, 2, 2, I420, 2, 2)
> 
> #define ALIGNINT(V, ALIGN) (((V) + (ALIGN)-1) / (ALIGN) * (ALIGN))
> 
>-#define TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,  \
>-                       YALIGN, W1280, DIFF, N, NEG, OFF, FMT_C, BPP_C)         \
>-  TEST_F(LibYUVConvertTest, FMT_PLANAR##To##FMT_B##N) {                        \
>-    const int kWidth = ((W1280) > 0) ? (W1280) : 1;                            \
>-    const int kHeight = ALIGNINT(benchmark_height_, YALIGN);                   \
>-    const int kStrideB = ALIGNINT(kWidth * BPP_B, ALIGN);                      \
>-    const int kStrideUV = SUBSAMPLE(kWidth, SUBSAMP_X);                        \
>-    const int kSizeUV = kStrideUV * SUBSAMPLE(kHeight, SUBSAMP_Y);             \
>-    align_buffer_page_end(src_y, kWidth* kHeight + OFF);                       \
>-    align_buffer_page_end(src_u, kSizeUV + OFF);                               \
>-    align_buffer_page_end(src_v, kSizeUV + OFF);                               \
>-    align_buffer_page_end(dst_argb_c, kStrideB* kHeight + OFF);                \
>-    align_buffer_page_end(dst_argb_opt, kStrideB* kHeight + OFF);              \
>-    for (int i = 0; i < kWidth * kHeight; ++i) {                               \
>-      src_y[i + OFF] = (fastrand() & 0xff);                                    \
>-    }                                                                          \
>-    for (int i = 0; i < kSizeUV; ++i) {                                        \
>-      src_u[i + OFF] = (fastrand() & 0xff);                                    \
>-      src_v[i + OFF] = (fastrand() & 0xff);                                    \
>-    }                                                                          \
>-    memset(dst_argb_c + OFF, 1, kStrideB * kHeight);                           \
>-    memset(dst_argb_opt + OFF, 101, kStrideB * kHeight);                       \
>-    MaskCpuFlags(disable_cpu_flags_);                                          \
>-    FMT_PLANAR##To##FMT_B(src_y + OFF, kWidth, src_u + OFF, kStrideUV,         \
>-                          src_v + OFF, kStrideUV, dst_argb_c + OFF, kStrideB,  \
>-                          kWidth, NEG kHeight);                                \
>-    MaskCpuFlags(benchmark_cpu_info_);                                         \
>-    for (int i = 0; i < benchmark_iterations_; ++i) {                          \
>-      FMT_PLANAR##To##FMT_B(src_y + OFF, kWidth, src_u + OFF, kStrideUV,       \
>-                            src_v + OFF, kStrideUV, dst_argb_opt + OFF,        \
>-                            kStrideB, kWidth, NEG kHeight);                    \
>-    }                                                                          \
>-    int max_diff = 0;                                                          \
>-    /* Convert to ARGB so 565 is expanded to bytes that can be compared. */    \
>-    align_buffer_page_end(dst_argb32_c, kWidth* BPP_C* kHeight);               \
>-    align_buffer_page_end(dst_argb32_opt, kWidth* BPP_C* kHeight);             \
>-    memset(dst_argb32_c, 2, kWidth* BPP_C* kHeight);                           \
>-    memset(dst_argb32_opt, 102, kWidth* BPP_C* kHeight);                       \
>-    FMT_B##To##FMT_C(dst_argb_c + OFF, kStrideB, dst_argb32_c, kWidth * BPP_C, \
>-                     kWidth, kHeight);                                         \
>-    FMT_B##To##FMT_C(dst_argb_opt + OFF, kStrideB, dst_argb32_opt,             \
>-                     kWidth * BPP_C, kWidth, kHeight);                         \
>-    for (int i = 0; i < kWidth * BPP_C * kHeight; ++i) {                       \
>-      int abs_diff = abs(static_cast<int>(dst_argb32_c[i]) -                   \
>-                         static_cast<int>(dst_argb32_opt[i]));                 \
>-      if (abs_diff > max_diff) {                                               \
>-        max_diff = abs_diff;                                                   \
>-      }                                                                        \
>-    }                                                                          \
>-    EXPECT_LE(max_diff, DIFF);                                                 \
>-    free_aligned_buffer_page_end(src_y);                                       \
>-    free_aligned_buffer_page_end(src_u);                                       \
>-    free_aligned_buffer_page_end(src_v);                                       \
>-    free_aligned_buffer_page_end(dst_argb_c);                                  \
>-    free_aligned_buffer_page_end(dst_argb_opt);                                \
>-    free_aligned_buffer_page_end(dst_argb32_c);                                \
>-    free_aligned_buffer_page_end(dst_argb32_opt);                              \
>+#define TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN, \
>+                       YALIGN, W1280, N, NEG, OFF)                            \
>+  TEST_F(LibYUVConvertTest, FMT_PLANAR##To##FMT_B##N) {                       \
>+    const int kWidth = ((W1280) > 0) ? (W1280) : 1;                           \
>+    const int kHeight = ALIGNINT(benchmark_height_, YALIGN);                  \
>+    const int kStrideB = ALIGNINT(kWidth * BPP_B, ALIGN);                     \
>+    const int kStrideUV = SUBSAMPLE(kWidth, SUBSAMP_X);                       \
>+    const int kSizeUV = kStrideUV * SUBSAMPLE(kHeight, SUBSAMP_Y);            \
>+    align_buffer_page_end(src_y, kWidth* kHeight + OFF);                      \
>+    align_buffer_page_end(src_u, kSizeUV + OFF);                              \
>+    align_buffer_page_end(src_v, kSizeUV + OFF);                              \
>+    align_buffer_page_end(dst_argb_c, kStrideB* kHeight + OFF);               \
>+    align_buffer_page_end(dst_argb_opt, kStrideB* kHeight + OFF);             \
>+    for (int i = 0; i < kWidth * kHeight; ++i) {                              \
>+      src_y[i + OFF] = (fastrand() & 0xff);                                   \
>+    }                                                                         \
>+    for (int i = 0; i < kSizeUV; ++i) {                                       \
>+      src_u[i + OFF] = (fastrand() & 0xff);                                   \
>+      src_v[i + OFF] = (fastrand() & 0xff);                                   \
>+    }                                                                         \
>+    memset(dst_argb_c + OFF, 1, kStrideB * kHeight);                          \
>+    memset(dst_argb_opt + OFF, 101, kStrideB * kHeight);                      \
>+    MaskCpuFlags(disable_cpu_flags_);                                         \
>+    double time0 = get_time();                                                \
>+    FMT_PLANAR##To##FMT_B(src_y + OFF, kWidth, src_u + OFF, kStrideUV,        \
>+                          src_v + OFF, kStrideUV, dst_argb_c + OFF, kStrideB, \
>+                          kWidth, NEG kHeight);                               \
>+    double time1 = get_time();                                                \
>+    MaskCpuFlags(benchmark_cpu_info_);                                        \
>+    for (int i = 0; i < benchmark_iterations_; ++i) {                         \
>+      FMT_PLANAR##To##FMT_B(src_y + OFF, kWidth, src_u + OFF, kStrideUV,      \
>+                            src_v + OFF, kStrideUV, dst_argb_opt + OFF,       \
>+                            kStrideB, kWidth, NEG kHeight);                   \
>+    }                                                                         \
>+    double time2 = get_time();                                                \
>+    printf(" %8d us C - %8d us OPT\n",                                        \
>+           static_cast<int>((time1 - time0) * 1e6),                           \
>+           static_cast<int>((time2 - time1) * 1e6 / benchmark_iterations_));  \
>+    for (int i = 0; i < kWidth * BPP_B * kHeight; ++i) {                      \
>+      EXPECT_EQ(dst_argb_c[i + OFF], dst_argb_opt[i + OFF]);                  \
>+    }                                                                         \
>+    free_aligned_buffer_page_end(src_y);                                      \
>+    free_aligned_buffer_page_end(src_u);                                      \
>+    free_aligned_buffer_page_end(src_v);                                      \
>+    free_aligned_buffer_page_end(dst_argb_c);                                 \
>+    free_aligned_buffer_page_end(dst_argb_opt);                               \
>   }
> 
>-#define TESTPLANARTOB(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,   \
>-                      YALIGN, DIFF, FMT_C, BPP_C)                              \
>-  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,        \
>-                 YALIGN, benchmark_width_ - 4, DIFF, _Any, +, 0, FMT_C, BPP_C) \
>-  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,        \
>-                 YALIGN, benchmark_width_, DIFF, _Unaligned, +, 1, FMT_C,      \
>-                 BPP_C)                                                        \
>-  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,        \
>-                 YALIGN, benchmark_width_, DIFF, _Invert, -, 0, FMT_C, BPP_C)  \
>-  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,        \
>-                 YALIGN, benchmark_width_, DIFF, _Opt, +, 0, FMT_C, BPP_C)
>-
>-TESTPLANARTOB(I420, 2, 2, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(J420, 2, 2, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(J420, 2, 2, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H420, 2, 2, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H420, 2, 2, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, BGRA, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, RGBA, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, RAW, 3, 3, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, RGB24, 3, 3, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H420, 2, 2, RAW, 3, 3, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H420, 2, 2, RGB24, 3, 3, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, RGB565, 2, 2, 1, 9, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, ARGB1555, 2, 2, 1, 9, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, ARGB4444, 2, 2, 1, 17, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, RGB565, 2, 2, 1, 9, ARGB, 4)
>-TESTPLANARTOB(J422, 2, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(J422, 2, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H422, 2, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(H422, 2, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, BGRA, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, RGBA, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I444, 1, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(J444, 1, 1, ARGB, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I444, 1, 1, ABGR, 4, 4, 1, 2, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, YUY2, 2, 4, 1, 1, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, UYVY, 2, 4, 1, 1, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, YUY2, 2, 4, 1, 0, ARGB, 4)
>-TESTPLANARTOB(I422, 2, 1, UYVY, 2, 4, 1, 0, ARGB, 4)
>-TESTPLANARTOB(I420, 2, 2, I400, 1, 1, 1, 0, ARGB, 4)
>-TESTPLANARTOB(J420, 2, 2, J400, 1, 1, 1, 0, ARGB, 4)
>+#define TESTPLANARTOB(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN, \
>+                      YALIGN)                                                \
>+  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                 YALIGN, benchmark_width_ - 4, _Any, +, 0)                   \
>+  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                 YALIGN, benchmark_width_, _Unaligned, +, 1)                 \
>+  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                 YALIGN, benchmark_width_, _Invert, -, 0)                    \
>+  TESTPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                 YALIGN, benchmark_width_, _Opt, +, 0)
>+
>+TESTPLANARTOB(I420, 2, 2, ARGB, 4, 4, 1)
>+TESTPLANARTOB(J420, 2, 2, ARGB, 4, 4, 1)
>+TESTPLANARTOB(J420, 2, 2, ABGR, 4, 4, 1)
>+TESTPLANARTOB(H420, 2, 2, ARGB, 4, 4, 1)
>+TESTPLANARTOB(H420, 2, 2, ABGR, 4, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, BGRA, 4, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, ABGR, 4, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, RGBA, 4, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, RAW, 3, 3, 1)
>+TESTPLANARTOB(I420, 2, 2, RGB24, 3, 3, 1)
>+TESTPLANARTOB(H420, 2, 2, RAW, 3, 3, 1)
>+TESTPLANARTOB(H420, 2, 2, RGB24, 3, 3, 1)
>+TESTPLANARTOB(I420, 2, 2, RGB565, 2, 2, 1)
>+TESTPLANARTOB(I420, 2, 2, ARGB1555, 2, 2, 1)
>+TESTPLANARTOB(I420, 2, 2, ARGB4444, 2, 2, 1)
>+TESTPLANARTOB(I422, 2, 1, ARGB, 4, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, RGB565, 2, 2, 1)
>+TESTPLANARTOB(J422, 2, 1, ARGB, 4, 4, 1)
>+TESTPLANARTOB(J422, 2, 1, ABGR, 4, 4, 1)
>+TESTPLANARTOB(H422, 2, 1, ARGB, 4, 4, 1)
>+TESTPLANARTOB(H422, 2, 1, ABGR, 4, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, BGRA, 4, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, ABGR, 4, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, RGBA, 4, 4, 1)
>+TESTPLANARTOB(I444, 1, 1, ARGB, 4, 4, 1)
>+TESTPLANARTOB(J444, 1, 1, ARGB, 4, 4, 1)
>+TESTPLANARTOB(I444, 1, 1, ABGR, 4, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, YUY2, 2, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, UYVY, 2, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, YUY2, 2, 4, 1)
>+TESTPLANARTOB(I422, 2, 1, UYVY, 2, 4, 1)
>+TESTPLANARTOB(I420, 2, 2, I400, 1, 1, 1)
>+TESTPLANARTOB(J420, 2, 2, J400, 1, 1, 1)
>+TESTPLANARTOB(I420, 2, 2, AR30, 4, 4, 1)
>+TESTPLANARTOB(H420, 2, 2, AR30, 4, 4, 1)
> 
> #define TESTQPLANARTOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN, \
>                         YALIGN, W1280, DIFF, N, NEG, OFF, ATTEN)               \
>@@ -737,6 +730,10 @@ TESTQPLANARTOB(I420Alpha, 2, 2, ABGR, 4, 4, 1, 2)
> 
> TESTBIPLANARTOB(NV12, 2, 2, ARGB, 4, 2)
> TESTBIPLANARTOB(NV21, 2, 2, ARGB, 4, 2)
>+TESTBIPLANARTOB(NV12, 2, 2, ABGR, 4, 2)
>+TESTBIPLANARTOB(NV21, 2, 2, ABGR, 4, 2)
>+TESTBIPLANARTOB(NV12, 2, 2, RGB24, 3, 2)
>+TESTBIPLANARTOB(NV21, 2, 2, RGB24, 3, 2)
> TESTBIPLANARTOB(NV12, 2, 2, RGB565, 2, 9)
> 
> #ifdef DO_THREE_PLANES
>@@ -865,15 +862,8 @@ TESTBIPLANARTOB(NV12, 2, 2, RGB565, 2, 9)
>                  benchmark_width_, DIFF, _Opt, +, 0)
> 
> TESTATOPLANAR(ARGB, 4, 1, I420, 2, 2, 4)
>-#if defined(__arm__) || defined(__aarch64__)
>-// arm version subsamples by summing 4 pixels then multiplying by matrix with
>-// 4x smaller coefficients which are rounded to nearest integer.
>-TESTATOPLANAR(ARGB, 4, 1, J420, 2, 2, 4)
>-TESTATOPLANAR(ARGB, 4, 1, J422, 2, 1, 4)
>-#else
>-TESTATOPLANAR(ARGB, 4, 1, J420, 2, 2, 0)
>-TESTATOPLANAR(ARGB, 4, 1, J422, 2, 1, 0)
>-#endif
>+TESTATOPLANAR(ARGB, 4, 1, J420, 2, 2, ARM_YUV_ERROR)
>+TESTATOPLANAR(ARGB, 4, 1, J422, 2, 1, ARM_YUV_ERROR)
> TESTATOPLANAR(BGRA, 4, 1, I420, 2, 2, 4)
> TESTATOPLANAR(ABGR, 4, 1, I420, 2, 2, 4)
> TESTATOPLANAR(RGBA, 4, 1, I420, 2, 2, 4)
>@@ -1069,6 +1059,8 @@ TESTATOB(ARGB, 4, 4, 1, RGB24, 3, 3, 1, 0)
> TESTATOB(ARGB, 4, 4, 1, RGB565, 2, 2, 1, 0)
> TESTATOB(ARGB, 4, 4, 1, ARGB1555, 2, 2, 1, 0)
> TESTATOB(ARGB, 4, 4, 1, ARGB4444, 2, 2, 1, 0)
>+TESTATOB(ABGR, 4, 4, 1, AR30, 4, 4, 1, 0)
>+TESTATOB(ARGB, 4, 4, 1, AR30, 4, 4, 1, 0)
> TESTATOB(ARGB, 4, 4, 1, YUY2, 2, 4, 1, 4)
> TESTATOB(ARGB, 4, 4, 1, UYVY, 2, 4, 1, 4)
> TESTATOB(ARGB, 4, 4, 1, I400, 1, 1, 1, 2)
>@@ -1076,14 +1068,20 @@ TESTATOB(ARGB, 4, 4, 1, J400, 1, 1, 1, 2)
> TESTATOB(BGRA, 4, 4, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(ABGR, 4, 4, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(RGBA, 4, 4, 1, ARGB, 4, 4, 1, 0)
>+TESTATOB(AR30, 4, 4, 1, AR30, 4, 4, 1, 0)
> TESTATOB(RAW, 3, 3, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(RAW, 3, 3, 1, RGB24, 3, 3, 1, 0)
> TESTATOB(RGB24, 3, 3, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(RGB565, 2, 2, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(ARGB1555, 2, 2, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(ARGB4444, 2, 2, 1, ARGB, 4, 4, 1, 0)
>-TESTATOB(YUY2, 2, 4, 1, ARGB, 4, 4, 1, 4)
>-TESTATOB(UYVY, 2, 4, 1, ARGB, 4, 4, 1, 4)
>+TESTATOB(AR30, 4, 4, 1, ARGB, 4, 4, 1, 0)
>+TESTATOB(AR30, 4, 4, 1, ABGR, 4, 4, 1, 0)
>+TESTATOB(AB30, 4, 4, 1, ARGB, 4, 4, 1, 0)
>+TESTATOB(AB30, 4, 4, 1, ABGR, 4, 4, 1, 0)
>+TESTATOB(AR30, 4, 4, 1, AB30, 4, 4, 1, 0)
>+TESTATOB(YUY2, 2, 4, 1, ARGB, 4, 4, 1, ARM_YUV_ERROR)
>+TESTATOB(UYVY, 2, 4, 1, ARGB, 4, 4, 1, ARM_YUV_ERROR)
> TESTATOB(YUY2, 2, 4, 1, Y, 1, 1, 1, 0)
> TESTATOB(I400, 1, 1, 1, ARGB, 4, 4, 1, 0)
> TESTATOB(J400, 1, 1, 1, ARGB, 4, 4, 1, 0)
>@@ -1240,8 +1238,8 @@ TESTSYM(BGRAToARGB, 4, 4, 1)
> TESTSYM(ABGRToARGB, 4, 4, 1)
> 
> TEST_F(LibYUVConvertTest, Test565) {
>-  SIMD_ALIGNED(uint8 orig_pixels[256][4]);
>-  SIMD_ALIGNED(uint8 pixels565[256][2]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[256][4]);
>+  SIMD_ALIGNED(uint8_t pixels565[256][2]);
> 
>   for (int i = 0; i < 256; ++i) {
>     for (int j = 0; j < 4; ++j) {
>@@ -1249,7 +1247,7 @@ TEST_F(LibYUVConvertTest, Test565) {
>     }
>   }
>   ARGBToRGB565(&orig_pixels[0][0], 0, &pixels565[0][0], 0, 256, 1);
>-  uint32 checksum = HashDjb2(&pixels565[0][0], sizeof(pixels565), 5381);
>+  uint32_t checksum = HashDjb2(&pixels565[0][0], sizeof(pixels565), 5381);
>   EXPECT_EQ(610919429u, checksum);
> }
> 
>@@ -1444,7 +1442,7 @@ TEST_F(LibYUVConvertTest, NV12Crop) {
>   const int sample_size =
>       kWidth * kHeight + kStrideUV * SUBSAMPLE(kHeight, SUBSAMP_Y) * 2;
>   align_buffer_page_end(src_y, sample_size);
>-  uint8* src_uv = src_y + kWidth * kHeight;
>+  uint8_t* src_uv = src_y + kWidth * kHeight;
> 
>   align_buffer_page_end(dst_y, kDestWidth * kDestHeight);
>   align_buffer_page_end(dst_u, SUBSAMPLE(kDestWidth, SUBSAMP_X) *
>@@ -1512,13 +1510,13 @@ TEST_F(LibYUVConvertTest, NV12Crop) {
> }
> 
> TEST_F(LibYUVConvertTest, TestYToARGB) {
>-  uint8 y[32];
>-  uint8 expectedg[32];
>+  uint8_t y[32];
>+  uint8_t expectedg[32];
>   for (int i = 0; i < 32; ++i) {
>     y[i] = i * 5 + 17;
>     expectedg[i] = static_cast<int>((y[i] - 16) * 1.164f + 0.5f);
>   }
>-  uint8 argb[32 * 4];
>+  uint8_t argb[32 * 4];
>   YToARGB(y, 0, argb, 0, 32, 1);
> 
>   for (int i = 0; i < 32; ++i) {
>@@ -1530,7 +1528,7 @@ TEST_F(LibYUVConvertTest, TestYToARGB) {
>   }
> }
> 
>-static const uint8 kNoDither4x4[16] = {
>+static const uint8_t kNoDither4x4[16] = {
>     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> };
> 
>@@ -1557,7 +1555,7 @@ TEST_F(LibYUVConvertTest, TestNoDither) {
> }
> 
> // Ordered 4x4 dither for 888 to 565.  Values from 0 to 7.
>-static const uint8 kDither565_4x4[16] = {
>+static const uint8_t kDither565_4x4[16] = {
>     0, 4, 1, 5, 6, 2, 7, 3, 1, 5, 0, 4, 7, 3, 6, 2,
> };
> 
>@@ -1728,6 +1726,8 @@ TESTPLANARTOBD(I420, 2, 2, RGB565, 2, 2, 1, 9, ARGB, 4)
> TESTPTOB(TestYUY2ToNV12, YUY2ToI420, YUY2ToNV12)
> TESTPTOB(TestUYVYToNV12, UYVYToI420, UYVYToNV12)
> 
>+// Transitive tests.  A to B to C is same as A to C.
>+
> #define TESTPLANARTOEI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, SUB_B, BPP_B, \
>                        W1280, N, NEG, OFF, FMT_C, BPP_C)                      \
>   TEST_F(LibYUVConvertTest, FMT_PLANAR##To##FMT_B##_##FMT_C##N) {             \
>@@ -1893,6 +1893,64 @@ TESTPLANARTOE(I422, 2, 1, UYVY, 2, 4, ARGB, 4)
> TESTQPLANARTOE(I420Alpha, 2, 2, ARGB, 1, 4, ABGR, 4)
> TESTQPLANARTOE(I420Alpha, 2, 2, ABGR, 1, 4, ARGB, 4)
> 
>+#define TESTPLANETOEI(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B, W1280, N, NEG, \
>+                      OFF, FMT_C, BPP_C)                                       \
>+  TEST_F(LibYUVConvertTest, FMT_A##To##FMT_B##_##FMT_C##N) {                   \
>+    const int kWidth = ((W1280) > 0) ? (W1280) : 1;                            \
>+    const int kHeight = benchmark_height_;                                     \
>+    const int kStrideA = SUBSAMPLE(kWidth, SUB_A) * BPP_A;                     \
>+    const int kStrideB = SUBSAMPLE(kWidth, SUB_B) * BPP_B;                     \
>+    align_buffer_page_end(src_argb_a, kStrideA* kHeight + OFF);                \
>+    align_buffer_page_end(dst_argb_b, kStrideB* kHeight + OFF);                \
>+    MemRandomize(src_argb_a + OFF, kStrideA * kHeight);                        \
>+    memset(dst_argb_b + OFF, 1, kStrideB * kHeight);                           \
>+    for (int i = 0; i < benchmark_iterations_; ++i) {                          \
>+      FMT_A##To##FMT_B(src_argb_a + OFF, kStrideA, dst_argb_b + OFF, kStrideB, \
>+                       kWidth, NEG kHeight);                                   \
>+    }                                                                          \
>+    /* Convert to a 3rd format in 1 step and 2 steps and compare  */           \
>+    const int kStrideC = kWidth * BPP_C;                                       \
>+    align_buffer_page_end(dst_argb_c, kStrideC* kHeight + OFF);                \
>+    align_buffer_page_end(dst_argb_bc, kStrideC* kHeight + OFF);               \
>+    memset(dst_argb_c + OFF, 2, kStrideC * kHeight);                           \
>+    memset(dst_argb_bc + OFF, 3, kStrideC * kHeight);                          \
>+    FMT_A##To##FMT_C(src_argb_a + OFF, kStrideA, dst_argb_c + OFF, kStrideC,   \
>+                     kWidth, NEG kHeight);                                     \
>+    /* Convert B to C */                                                       \
>+    FMT_B##To##FMT_C(dst_argb_b + OFF, kStrideB, dst_argb_bc + OFF, kStrideC,  \
>+                     kWidth, kHeight);                                         \
>+    for (int i = 0; i < kStrideC * kHeight; i += 4) {                          \
>+      EXPECT_EQ(dst_argb_c[i + OFF + 0], dst_argb_bc[i + OFF + 0]);            \
>+      EXPECT_EQ(dst_argb_c[i + OFF + 1], dst_argb_bc[i + OFF + 1]);            \
>+      EXPECT_EQ(dst_argb_c[i + OFF + 2], dst_argb_bc[i + OFF + 2]);            \
>+      EXPECT_NEAR(dst_argb_c[i + OFF + 3], dst_argb_bc[i + OFF + 3], 64);      \
>+    }                                                                          \
>+    free_aligned_buffer_page_end(src_argb_a);                                  \
>+    free_aligned_buffer_page_end(dst_argb_b);                                  \
>+    free_aligned_buffer_page_end(dst_argb_c);                                  \
>+    free_aligned_buffer_page_end(dst_argb_bc);                                 \
>+  }
>+
>+#define TESTPLANETOE(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B, FMT_C, BPP_C) \
>+  TESTPLANETOEI(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B,                    \
>+                benchmark_width_ - 4, _Any, +, 0, FMT_C, BPP_C)              \
>+  TESTPLANETOEI(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B, benchmark_width_,  \
>+                _Unaligned, +, 1, FMT_C, BPP_C)                              \
>+  TESTPLANETOEI(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B, benchmark_width_,  \
>+                _Invert, -, 0, FMT_C, BPP_C)                                 \
>+  TESTPLANETOEI(FMT_A, SUB_A, BPP_A, FMT_B, SUB_B, BPP_B, benchmark_width_,  \
>+                _Opt, +, 0, FMT_C, BPP_C)
>+
>+// Caveat: Destination needs to be 4 bytes
>+TESTPLANETOE(ARGB, 1, 4, AR30, 1, 4, ARGB, 4)
>+TESTPLANETOE(ABGR, 1, 4, AR30, 1, 4, ABGR, 4)
>+TESTPLANETOE(AR30, 1, 4, ARGB, 1, 4, ABGR, 4)
>+TESTPLANETOE(AR30, 1, 4, ABGR, 1, 4, ARGB, 4)
>+TESTPLANETOE(ARGB, 1, 4, AB30, 1, 4, ARGB, 4)
>+TESTPLANETOE(ABGR, 1, 4, AB30, 1, 4, ABGR, 4)
>+TESTPLANETOE(AB30, 1, 4, ARGB, 1, 4, ABGR, 4)
>+TESTPLANETOE(AB30, 1, 4, ABGR, 1, 4, ARGB, 4)
>+
> TEST_F(LibYUVConvertTest, RotateWithARGBSource) {
>   // 2x2 frames
>   uint32_t src[4];
>@@ -1928,4 +1986,476 @@ TEST_F(LibYUVConvertTest, RotateWithARGBSource) {
>   EXPECT_EQ(dst[3], src[1]);
> }
> 
>+#ifdef HAS_ARGBTOAR30ROW_AVX2
>+TEST_F(LibYUVConvertTest, ARGBToAR30Row_Opt) {
>+  // ARGBToAR30Row_AVX2 expects a multiple of 8 pixels.
>+  const int kPixels = (benchmark_width_ * benchmark_height_ + 7) & ~7;
>+  align_buffer_page_end(src, kPixels * 4);
>+  align_buffer_page_end(dst_opt, kPixels * 4);
>+  align_buffer_page_end(dst_c, kPixels * 4);
>+  MemRandomize(src, kPixels * 4);
>+  memset(dst_opt, 0, kPixels * 4);
>+  memset(dst_c, 1, kPixels * 4);
>+
>+  ARGBToAR30Row_C(src, dst_c, kPixels);
>+
>+  int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>+  int has_ssse3 = TestCpuFlag(kCpuHasSSSE3);
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    if (has_avx2) {
>+      ARGBToAR30Row_AVX2(src, dst_opt, kPixels);
>+    } else if (has_ssse3) {
>+      ARGBToAR30Row_SSSE3(src, dst_opt, kPixels);
>+    } else {
>+      ARGBToAR30Row_C(src, dst_opt, kPixels);
>+    }
>+  }
>+  for (int i = 0; i < kPixels * 4; ++i) {
>+    EXPECT_EQ(dst_opt[i], dst_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src);
>+  free_aligned_buffer_page_end(dst_opt);
>+  free_aligned_buffer_page_end(dst_c);
>+}
>+#endif  // HAS_ARGBTOAR30ROW_AVX2
>+
>+#ifdef HAS_ABGRTOAR30ROW_AVX2
>+TEST_F(LibYUVConvertTest, ABGRToAR30Row_Opt) {
>+  // ABGRToAR30Row_AVX2 expects a multiple of 8 pixels.
>+  const int kPixels = (benchmark_width_ * benchmark_height_ + 7) & ~7;
>+  align_buffer_page_end(src, kPixels * 4);
>+  align_buffer_page_end(dst_opt, kPixels * 4);
>+  align_buffer_page_end(dst_c, kPixels * 4);
>+  MemRandomize(src, kPixels * 4);
>+  memset(dst_opt, 0, kPixels * 4);
>+  memset(dst_c, 1, kPixels * 4);
>+
>+  ABGRToAR30Row_C(src, dst_c, kPixels);
>+
>+  int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>+  int has_ssse3 = TestCpuFlag(kCpuHasSSSE3);
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    if (has_avx2) {
>+      ABGRToAR30Row_AVX2(src, dst_opt, kPixels);
>+    } else if (has_ssse3) {
>+      ABGRToAR30Row_SSSE3(src, dst_opt, kPixels);
>+    } else {
>+      ABGRToAR30Row_C(src, dst_opt, kPixels);
>+    }
>+  }
>+  for (int i = 0; i < kPixels * 4; ++i) {
>+    EXPECT_EQ(dst_opt[i], dst_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src);
>+  free_aligned_buffer_page_end(dst_opt);
>+  free_aligned_buffer_page_end(dst_c);
>+}
>+#endif  // HAS_ABGRTOAR30ROW_AVX2
>+
>+// TODO(fbarchard): Fix clamping issue affected by U channel.
>+#define TESTPLANAR16TOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B,   \
>+                         ALIGN, YALIGN, W1280, DIFF, N, NEG, SOFF, DOFF)   \
>+  TEST_F(LibYUVConvertTest, FMT_PLANAR##To##FMT_B##N) {                    \
>+    const int kWidth = ((W1280) > 0) ? (W1280) : 1;                        \
>+    const int kHeight = ALIGNINT(benchmark_height_, YALIGN);               \
>+    const int kStrideB = ALIGNINT(kWidth * BPP_B, ALIGN);                  \
>+    const int kStrideUV = SUBSAMPLE(kWidth, SUBSAMP_X);                    \
>+    const int kSizeUV = kStrideUV * SUBSAMPLE(kHeight, SUBSAMP_Y);         \
>+    const int kBpc = 2;                                                    \
>+    align_buffer_page_end(src_y, kWidth* kHeight* kBpc + SOFF);            \
>+    align_buffer_page_end(src_u, kSizeUV* kBpc + SOFF);                    \
>+    align_buffer_page_end(src_v, kSizeUV* kBpc + SOFF);                    \
>+    align_buffer_page_end(dst_argb_c, kStrideB* kHeight + DOFF);           \
>+    align_buffer_page_end(dst_argb_opt, kStrideB* kHeight + DOFF);         \
>+    for (int i = 0; i < kWidth * kHeight; ++i) {                           \
>+      reinterpret_cast<uint16_t*>(src_y + SOFF)[i] = (fastrand() & 0x3ff); \
>+    }                                                                      \
>+    for (int i = 0; i < kSizeUV; ++i) {                                    \
>+      reinterpret_cast<uint16_t*>(src_u + SOFF)[i] = (fastrand() & 0x3ff); \
>+      reinterpret_cast<uint16_t*>(src_v + SOFF)[i] = (fastrand() & 0x3ff); \
>+    }                                                                      \
>+    memset(dst_argb_c + DOFF, 1, kStrideB * kHeight);                      \
>+    memset(dst_argb_opt + DOFF, 101, kStrideB * kHeight);                  \
>+    MaskCpuFlags(disable_cpu_flags_);                                      \
>+    FMT_PLANAR##To##FMT_B(                                                 \
>+        reinterpret_cast<uint16_t*>(src_y + SOFF), kWidth,                 \
>+        reinterpret_cast<uint16_t*>(src_u + SOFF), kStrideUV,              \
>+        reinterpret_cast<uint16_t*>(src_v + SOFF), kStrideUV,              \
>+        dst_argb_c + DOFF, kStrideB, kWidth, NEG kHeight);                 \
>+    MaskCpuFlags(benchmark_cpu_info_);                                     \
>+    for (int i = 0; i < benchmark_iterations_; ++i) {                      \
>+      FMT_PLANAR##To##FMT_B(                                               \
>+          reinterpret_cast<uint16_t*>(src_y + SOFF), kWidth,               \
>+          reinterpret_cast<uint16_t*>(src_u + SOFF), kStrideUV,            \
>+          reinterpret_cast<uint16_t*>(src_v + SOFF), kStrideUV,            \
>+          dst_argb_opt + DOFF, kStrideB, kWidth, NEG kHeight);             \
>+    }                                                                      \
>+    int max_diff = 0;                                                      \
>+    for (int i = 0; i < kWidth * BPP_B * kHeight; ++i) {                   \
>+      int abs_diff = abs(static_cast<int>(dst_argb_c[i + DOFF]) -          \
>+                         static_cast<int>(dst_argb_opt[i + DOFF]));        \
>+      if (abs_diff > max_diff) {                                           \
>+        max_diff = abs_diff;                                               \
>+      }                                                                    \
>+    }                                                                      \
>+    EXPECT_LE(max_diff, DIFF);                                             \
>+    free_aligned_buffer_page_end(src_y);                                   \
>+    free_aligned_buffer_page_end(src_u);                                   \
>+    free_aligned_buffer_page_end(src_v);                                   \
>+    free_aligned_buffer_page_end(dst_argb_c);                              \
>+    free_aligned_buffer_page_end(dst_argb_opt);                            \
>+  }
>+
>+#define TESTPLANAR16TOB(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN, \
>+                        YALIGN, DIFF)                                          \
>+  TESTPLANAR16TOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                   YALIGN, benchmark_width_ - 4, DIFF, _Any, +, 0, 0)          \
>+  TESTPLANAR16TOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                   YALIGN, benchmark_width_, DIFF, _Unaligned, +, 1, 1)        \
>+  TESTPLANAR16TOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                   YALIGN, benchmark_width_, DIFF, _Invert, -, 0, 0)           \
>+  TESTPLANAR16TOBI(FMT_PLANAR, SUBSAMP_X, SUBSAMP_Y, FMT_B, BPP_B, ALIGN,      \
>+                   YALIGN, benchmark_width_, DIFF, _Opt, +, 0, 0)
>+
>+TESTPLANAR16TOB(I010, 2, 2, ARGB, 4, 4, 1, 2)
>+TESTPLANAR16TOB(I010, 2, 2, ABGR, 4, 4, 1, 2)
>+TESTPLANAR16TOB(I010, 2, 2, AR30, 4, 4, 1, 2)
>+TESTPLANAR16TOB(I010, 2, 2, AB30, 4, 4, 1, 2)
>+TESTPLANAR16TOB(H010, 2, 2, ARGB, 4, 4, 1, 2)
>+TESTPLANAR16TOB(H010, 2, 2, ABGR, 4, 4, 1, 2)
>+TESTPLANAR16TOB(H010, 2, 2, AR30, 4, 4, 1, 2)
>+TESTPLANAR16TOB(H010, 2, 2, AB30, 4, 4, 1, 2)
>+
>+static int Clamp(int y) {
>+  if (y < 0) {
>+    y = 0;
>+  }
>+  if (y > 255) {
>+    y = 255;
>+  }
>+  return y;
>+}
>+
>+static int Clamp10(int y) {
>+  if (y < 0) {
>+    y = 0;
>+  }
>+  if (y > 1023) {
>+    y = 1023;
>+  }
>+  return y;
>+}
>+
>+// Test 8 bit YUV to 8 bit RGB
>+TEST_F(LibYUVConvertTest, TestH420ToARGB) {
>+  const int kSize = 256;
>+  int histogram_b[256];
>+  int histogram_g[256];
>+  int histogram_r[256];
>+  memset(histogram_b, 0, sizeof(histogram_b));
>+  memset(histogram_g, 0, sizeof(histogram_g));
>+  memset(histogram_r, 0, sizeof(histogram_r));
>+  align_buffer_page_end(orig_yuv, kSize + kSize / 2 * 2);
>+  align_buffer_page_end(argb_pixels, kSize * 4);
>+  uint8_t* orig_y = orig_yuv;
>+  uint8_t* orig_u = orig_y + kSize;
>+  uint8_t* orig_v = orig_u + kSize / 2;
>+
>+  // Test grey scale
>+  for (int i = 0; i < kSize; ++i) {
>+    orig_y[i] = i;
>+  }
>+  for (int i = 0; i < kSize / 2; ++i) {
>+    orig_u[i] = 128;  // 128 is 0.
>+    orig_v[i] = 128;
>+  }
>+
>+  H420ToARGB(orig_y, 0, orig_u, 0, orig_v, 0, argb_pixels, 0, kSize, 1);
>+
>+  for (int i = 0; i < kSize; ++i) {
>+    int b = argb_pixels[i * 4 + 0];
>+    int g = argb_pixels[i * 4 + 1];
>+    int r = argb_pixels[i * 4 + 2];
>+    int a = argb_pixels[i * 4 + 3];
>+    ++histogram_b[b];
>+    ++histogram_g[g];
>+    ++histogram_r[r];
>+    int expected_y = Clamp(static_cast<int>((i - 16) * 1.164f));
>+    EXPECT_NEAR(b, expected_y, 1);
>+    EXPECT_NEAR(g, expected_y, 1);
>+    EXPECT_NEAR(r, expected_y, 1);
>+    EXPECT_EQ(a, 255);
>+  }
>+
>+  int count_b = 0;
>+  int count_g = 0;
>+  int count_r = 0;
>+  for (int i = 0; i < kSize; ++i) {
>+    if (histogram_b[i]) {
>+      ++count_b;
>+    }
>+    if (histogram_g[i]) {
>+      ++count_g;
>+    }
>+    if (histogram_r[i]) {
>+      ++count_r;
>+    }
>+  }
>+  printf("uniques: B %d, G, %d, R %d\n", count_b, count_g, count_r);
>+
>+  free_aligned_buffer_page_end(orig_yuv);
>+  free_aligned_buffer_page_end(argb_pixels);
>+}
>+
>+// Test 10 bit YUV to 8 bit RGB
>+TEST_F(LibYUVConvertTest, TestH010ToARGB) {
>+  const int kSize = 1024;
>+  int histogram_b[1024];
>+  int histogram_g[1024];
>+  int histogram_r[1024];
>+  memset(histogram_b, 0, sizeof(histogram_b));
>+  memset(histogram_g, 0, sizeof(histogram_g));
>+  memset(histogram_r, 0, sizeof(histogram_r));
>+  align_buffer_page_end(orig_yuv, kSize * 2 + kSize / 2 * 2 * 2);
>+  align_buffer_page_end(argb_pixels, kSize * 4);
>+  uint16_t* orig_y = reinterpret_cast<uint16_t*>(orig_yuv);
>+  uint16_t* orig_u = orig_y + kSize;
>+  uint16_t* orig_v = orig_u + kSize / 2;
>+
>+  // Test grey scale
>+  for (int i = 0; i < kSize; ++i) {
>+    orig_y[i] = i;
>+  }
>+  for (int i = 0; i < kSize / 2; ++i) {
>+    orig_u[i] = 512;  // 512 is 0.
>+    orig_v[i] = 512;
>+  }
>+
>+  H010ToARGB(orig_y, 0, orig_u, 0, orig_v, 0, argb_pixels, 0, kSize, 1);
>+
>+  for (int i = 0; i < kSize; ++i) {
>+    int b = argb_pixels[i * 4 + 0];
>+    int g = argb_pixels[i * 4 + 1];
>+    int r = argb_pixels[i * 4 + 2];
>+    int a = argb_pixels[i * 4 + 3];
>+    ++histogram_b[b];
>+    ++histogram_g[g];
>+    ++histogram_r[r];
>+    int expected_y = Clamp(static_cast<int>((i - 64) * 1.164f / 4));
>+    EXPECT_NEAR(b, expected_y, 1);
>+    EXPECT_NEAR(g, expected_y, 1);
>+    EXPECT_NEAR(r, expected_y, 1);
>+    EXPECT_EQ(a, 255);
>+  }
>+
>+  int count_b = 0;
>+  int count_g = 0;
>+  int count_r = 0;
>+  for (int i = 0; i < kSize; ++i) {
>+    if (histogram_b[i]) {
>+      ++count_b;
>+    }
>+    if (histogram_g[i]) {
>+      ++count_g;
>+    }
>+    if (histogram_r[i]) {
>+      ++count_r;
>+    }
>+  }
>+  printf("uniques: B %d, G, %d, R %d\n", count_b, count_g, count_r);
>+
>+  free_aligned_buffer_page_end(orig_yuv);
>+  free_aligned_buffer_page_end(argb_pixels);
>+}
>+
>+// Test 10 bit YUV to 10 bit RGB
>+// Caveat: Result is near due to float rounding in expected result.
>+TEST_F(LibYUVConvertTest, TestH010ToAR30) {
>+  const int kSize = 1024;
>+  int histogram_b[1024];
>+  int histogram_g[1024];
>+  int histogram_r[1024];
>+  memset(histogram_b, 0, sizeof(histogram_b));
>+  memset(histogram_g, 0, sizeof(histogram_g));
>+  memset(histogram_r, 0, sizeof(histogram_r));
>+
>+  align_buffer_page_end(orig_yuv, kSize * 2 + kSize / 2 * 2 * 2);
>+  align_buffer_page_end(ar30_pixels, kSize * 4);
>+  uint16_t* orig_y = reinterpret_cast<uint16_t*>(orig_yuv);
>+  uint16_t* orig_u = orig_y + kSize;
>+  uint16_t* orig_v = orig_u + kSize / 2;
>+
>+  // Test grey scale
>+  for (int i = 0; i < kSize; ++i) {
>+    orig_y[i] = i;
>+  }
>+  for (int i = 0; i < kSize / 2; ++i) {
>+    orig_u[i] = 512;  // 512 is 0.
>+    orig_v[i] = 512;
>+  }
>+
>+  H010ToAR30(orig_y, 0, orig_u, 0, orig_v, 0, ar30_pixels, 0, kSize, 1);
>+
>+  for (int i = 0; i < kSize; ++i) {
>+    int b10 = reinterpret_cast<uint32_t*>(ar30_pixels)[i] & 1023;
>+    int g10 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 10) & 1023;
>+    int r10 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 20) & 1023;
>+    int a2 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 30) & 3;
>+    ++histogram_b[b10];
>+    ++histogram_g[g10];
>+    ++histogram_r[r10];
>+    int expected_y = Clamp10(static_cast<int>((i - 64) * 1.164f));
>+    EXPECT_NEAR(b10, expected_y, 4);
>+    EXPECT_NEAR(g10, expected_y, 4);
>+    EXPECT_NEAR(r10, expected_y, 4);
>+    EXPECT_EQ(a2, 3);
>+  }
>+
>+  int count_b = 0;
>+  int count_g = 0;
>+  int count_r = 0;
>+  for (int i = 0; i < kSize; ++i) {
>+    if (histogram_b[i]) {
>+      ++count_b;
>+    }
>+    if (histogram_g[i]) {
>+      ++count_g;
>+    }
>+    if (histogram_r[i]) {
>+      ++count_r;
>+    }
>+  }
>+  printf("uniques: B %d, G, %d, R %d\n", count_b, count_g, count_r);
>+
>+  free_aligned_buffer_page_end(orig_yuv);
>+  free_aligned_buffer_page_end(ar30_pixels);
>+}
>+
>+// Test 10 bit YUV to 10 bit RGB
>+// Caveat: Result is near due to float rounding in expected result.
>+TEST_F(LibYUVConvertTest, TestH010ToAB30) {
>+  const int kSize = 1024;
>+  int histogram_b[1024];
>+  int histogram_g[1024];
>+  int histogram_r[1024];
>+  memset(histogram_b, 0, sizeof(histogram_b));
>+  memset(histogram_g, 0, sizeof(histogram_g));
>+  memset(histogram_r, 0, sizeof(histogram_r));
>+
>+  align_buffer_page_end(orig_yuv, kSize * 2 + kSize / 2 * 2 * 2);
>+  align_buffer_page_end(ab30_pixels, kSize * 4);
>+  uint16_t* orig_y = reinterpret_cast<uint16_t*>(orig_yuv);
>+  uint16_t* orig_u = orig_y + kSize;
>+  uint16_t* orig_v = orig_u + kSize / 2;
>+
>+  // Test grey scale
>+  for (int i = 0; i < kSize; ++i) {
>+    orig_y[i] = i;
>+  }
>+  for (int i = 0; i < kSize / 2; ++i) {
>+    orig_u[i] = 512;  // 512 is 0.
>+    orig_v[i] = 512;
>+  }
>+
>+  H010ToAB30(orig_y, 0, orig_u, 0, orig_v, 0, ab30_pixels, 0, kSize, 1);
>+
>+  for (int i = 0; i < kSize; ++i) {
>+    int r10 = reinterpret_cast<uint32_t*>(ab30_pixels)[i] & 1023;
>+    int g10 = (reinterpret_cast<uint32_t*>(ab30_pixels)[i] >> 10) & 1023;
>+    int b10 = (reinterpret_cast<uint32_t*>(ab30_pixels)[i] >> 20) & 1023;
>+    int a2 = (reinterpret_cast<uint32_t*>(ab30_pixels)[i] >> 30) & 3;
>+    ++histogram_b[b10];
>+    ++histogram_g[g10];
>+    ++histogram_r[r10];
>+    int expected_y = Clamp10(static_cast<int>((i - 64) * 1.164f));
>+    EXPECT_NEAR(b10, expected_y, 4);
>+    EXPECT_NEAR(g10, expected_y, 4);
>+    EXPECT_NEAR(r10, expected_y, 4);
>+    EXPECT_EQ(a2, 3);
>+  }
>+
>+  int count_b = 0;
>+  int count_g = 0;
>+  int count_r = 0;
>+  for (int i = 0; i < kSize; ++i) {
>+    if (histogram_b[i]) {
>+      ++count_b;
>+    }
>+    if (histogram_g[i]) {
>+      ++count_g;
>+    }
>+    if (histogram_r[i]) {
>+      ++count_r;
>+    }
>+  }
>+  printf("uniques: B %d, G, %d, R %d\n", count_b, count_g, count_r);
>+
>+  free_aligned_buffer_page_end(orig_yuv);
>+  free_aligned_buffer_page_end(ab30_pixels);
>+}
>+
>+// Test 8 bit YUV to 10 bit RGB
>+TEST_F(LibYUVConvertTest, TestH420ToAR30) {
>+  const int kSize = 256;
>+  const int kHistSize = 1024;
>+  int histogram_b[kHistSize];
>+  int histogram_g[kHistSize];
>+  int histogram_r[kHistSize];
>+  memset(histogram_b, 0, sizeof(histogram_b));
>+  memset(histogram_g, 0, sizeof(histogram_g));
>+  memset(histogram_r, 0, sizeof(histogram_r));
>+  align_buffer_page_end(orig_yuv, kSize + kSize / 2 * 2);
>+  align_buffer_page_end(ar30_pixels, kSize * 4);
>+  uint8_t* orig_y = orig_yuv;
>+  uint8_t* orig_u = orig_y + kSize;
>+  uint8_t* orig_v = orig_u + kSize / 2;
>+
>+  // Test grey scale
>+  for (int i = 0; i < kSize; ++i) {
>+    orig_y[i] = i;
>+  }
>+  for (int i = 0; i < kSize / 2; ++i) {
>+    orig_u[i] = 128;  // 128 is 0.
>+    orig_v[i] = 128;
>+  }
>+
>+  H420ToAR30(orig_y, 0, orig_u, 0, orig_v, 0, ar30_pixels, 0, kSize, 1);
>+
>+  for (int i = 0; i < kSize; ++i) {
>+    int b10 = reinterpret_cast<uint32_t*>(ar30_pixels)[i] & 1023;
>+    int g10 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 10) & 1023;
>+    int r10 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 20) & 1023;
>+    int a2 = (reinterpret_cast<uint32_t*>(ar30_pixels)[i] >> 30) & 3;
>+    ++histogram_b[b10];
>+    ++histogram_g[g10];
>+    ++histogram_r[r10];
>+    int expected_y = Clamp10(static_cast<int>((i - 16) * 1.164f * 4.f));
>+    EXPECT_NEAR(b10, expected_y, 4);
>+    EXPECT_NEAR(g10, expected_y, 4);
>+    EXPECT_NEAR(r10, expected_y, 4);
>+    EXPECT_EQ(a2, 3);
>+  }
>+
>+  int count_b = 0;
>+  int count_g = 0;
>+  int count_r = 0;
>+  for (int i = 0; i < kHistSize; ++i) {
>+    if (histogram_b[i]) {
>+      ++count_b;
>+    }
>+    if (histogram_g[i]) {
>+      ++count_g;
>+    }
>+    if (histogram_r[i]) {
>+      ++count_r;
>+    }
>+  }
>+  printf("uniques: B %d, G, %d, R %d\n", count_b, count_g, count_r);
>+
>+  free_aligned_buffer_page_end(orig_yuv);
>+  free_aligned_buffer_page_end(ar30_pixels);
>+}
>+
> }  // namespace libyuv
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/cpu_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/cpu_test.cc
>index 4e694f55ce57f44b3b0e8e94d8a15eed554c1572..a8fb4b4ac01f16fc7525c39a20c66478ea0fccaa 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/cpu_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/cpu_test.cc
>@@ -65,8 +65,6 @@ TEST_F(LibYUVBaseTest, TestCpuHas) {
> #if defined(__mips__)
>   int has_mips = TestCpuFlag(kCpuHasMIPS);
>   printf("Has MIPS %x\n", has_mips);
>-  int has_dspr2 = TestCpuFlag(kCpuHasDSPR2);
>-  printf("Has DSPR2 %x\n", has_dspr2);
>   int has_msa = TestCpuFlag(kCpuHasMSA);
>   printf("Has MSA %x\n", has_msa);
> #endif
>@@ -147,6 +145,8 @@ static int FileExists(const char* file_name) {
> 
> TEST_F(LibYUVBaseTest, TestLinuxNeon) {
>   if (FileExists("../../unit_test/testdata/arm_v7.txt")) {
>+    printf("Note: testing to load \"../../unit_test/testdata/arm_v7.txt\"\n");
>+
>     EXPECT_EQ(0, ArmCpuCaps("../../unit_test/testdata/arm_v7.txt"));
>     EXPECT_EQ(kCpuHasNEON, ArmCpuCaps("../../unit_test/testdata/tegra3.txt"));
>     EXPECT_EQ(kCpuHasNEON, ArmCpuCaps("../../unit_test/testdata/juno.txt"));
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/math_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/math_test.cc
>index 2b4b57b1cea4f634ebb896eb543708fd32d094a0..0abbad513210124ccc733512bcf7a7bec059a378 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/math_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/math_test.cc
>@@ -65,8 +65,8 @@ TEST_F(LibYUVBaseTest, TestFixedDiv) {
>   }
>   EXPECT_EQ(123 * 65536, libyuv::FixedDiv(123, 1));
> 
>-  MemRandomize(reinterpret_cast<uint8*>(&num[0]), sizeof(num));
>-  MemRandomize(reinterpret_cast<uint8*>(&div[0]), sizeof(div));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&num[0]), sizeof(num));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&div[0]), sizeof(div));
>   for (int j = 0; j < 1280; ++j) {
>     if (div[j] == 0) {
>       div[j] = 1280;
>@@ -90,8 +90,8 @@ TEST_F(LibYUVBaseTest, TestFixedDiv_Opt) {
>   int result_opt[1280];
>   int result_c[1280];
> 
>-  MemRandomize(reinterpret_cast<uint8*>(&num[0]), sizeof(num));
>-  MemRandomize(reinterpret_cast<uint8*>(&div[0]), sizeof(div));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&num[0]), sizeof(num));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&div[0]), sizeof(div));
>   for (int j = 0; j < 1280; ++j) {
>     num[j] &= 4095;  // Make numerator smaller.
>     div[j] &= 4095;  // Make divisor smaller.
>@@ -124,8 +124,8 @@ TEST_F(LibYUVBaseTest, TestFixedDiv1_Opt) {
>   int result_opt[1280];
>   int result_c[1280];
> 
>-  MemRandomize(reinterpret_cast<uint8*>(&num[0]), sizeof(num));
>-  MemRandomize(reinterpret_cast<uint8*>(&div[0]), sizeof(div));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&num[0]), sizeof(num));
>+  MemRandomize(reinterpret_cast<uint8_t*>(&div[0]), sizeof(div));
>   for (int j = 0; j < 1280; ++j) {
>     num[j] &= 4095;  // Make numerator smaller.
>     div[j] &= 4095;  // Make divisor smaller.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/planar_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/planar_test.cc
>index f9e6f8abb2fca5a3197ca3e9008f2c0818f1d535..756089558f792c529ad88d2a6e221e904eb2de5c 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/planar_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/planar_test.cc
>@@ -252,8 +252,8 @@ TEST_F(LibYUVPlanarTest, ARGBUnattenuate_Opt) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBComputeCumulativeSum) {
>-  SIMD_ALIGNED(uint8 orig_pixels[16][16][4]);
>-  SIMD_ALIGNED(int32 added_pixels[16][16][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[16][16][4]);
>+  SIMD_ALIGNED(int32_t added_pixels[16][16][4]);
> 
>   for (int y = 0; y < 16; ++y) {
>     for (int x = 0; x < 16; ++x) {
>@@ -278,7 +278,7 @@ TEST_F(LibYUVPlanarTest, TestARGBComputeCumulativeSum) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBGray) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   // Test blue
>@@ -349,8 +349,8 @@ TEST_F(LibYUVPlanarTest, TestARGBGray) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBGrayTo) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 gray_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t gray_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   // Test blue
>@@ -421,7 +421,7 @@ TEST_F(LibYUVPlanarTest, TestARGBGrayTo) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBSepia) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   // Test blue
>@@ -493,12 +493,12 @@ TEST_F(LibYUVPlanarTest, TestARGBSepia) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBColorMatrix) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_opt[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_c[1280][4]);
> 
>   // Matrix for Sepia.
>-  SIMD_ALIGNED(static const int8 kRGBToSepia[]) = {
>+  SIMD_ALIGNED(static const int8_t kRGBToSepia[]) = {
>       17 / 2, 68 / 2, 35 / 2, 0, 22 / 2, 88 / 2, 45 / 2, 0,
>       24 / 2, 98 / 2, 50 / 2, 0, 0,      0,      0,      64,  // Copy alpha.
>   };
>@@ -569,10 +569,10 @@ TEST_F(LibYUVPlanarTest, TestARGBColorMatrix) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestRGBColorMatrix) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
> 
>   // Matrix for Sepia.
>-  SIMD_ALIGNED(static const int8 kRGBToSepia[]) = {
>+  SIMD_ALIGNED(static const int8_t kRGBToSepia[]) = {
>       17, 68, 35, 0, 22, 88, 45, 0,
>       24, 98, 50, 0, 0,  0,  0,  0,  // Unused but makes matrix 16 bytes.
>   };
>@@ -629,11 +629,11 @@ TEST_F(LibYUVPlanarTest, TestRGBColorMatrix) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBColorTable) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   // Matrix for Sepia.
>-  static const uint8 kARGBTable[256 * 4] = {
>+  static const uint8_t kARGBTable[256 * 4] = {
>       1u, 2u, 3u, 4u, 5u, 6u, 7u, 8u, 9u, 10u, 11u, 12u, 13u, 14u, 15u, 16u,
>   };
> 
>@@ -685,11 +685,11 @@ TEST_F(LibYUVPlanarTest, TestARGBColorTable) {
> 
> // Same as TestARGBColorTable except alpha does not change.
> TEST_F(LibYUVPlanarTest, TestRGBColorTable) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   // Matrix for Sepia.
>-  static const uint8 kARGBTable[256 * 4] = {
>+  static const uint8_t kARGBTable[256 * 4] = {
>       1u, 2u, 3u, 4u, 5u, 6u, 7u, 8u, 9u, 10u, 11u, 12u, 13u, 14u, 15u, 16u,
>   };
> 
>@@ -740,7 +740,7 @@ TEST_F(LibYUVPlanarTest, TestRGBColorTable) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBQuantize) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
> 
>   for (int i = 0; i < 1280; ++i) {
>     orig_pixels[i][0] = i;
>@@ -764,8 +764,8 @@ TEST_F(LibYUVPlanarTest, TestARGBQuantize) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBMirror) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels[1280][4]);
> 
>   for (int i = 0; i < 1280; ++i) {
>     orig_pixels[i][0] = i;
>@@ -787,8 +787,8 @@ TEST_F(LibYUVPlanarTest, TestARGBMirror) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestShade) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 shade_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t shade_pixels[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   orig_pixels[0][0] = 10u;
>@@ -845,9 +845,9 @@ TEST_F(LibYUVPlanarTest, TestShade) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBInterpolate) {
>-  SIMD_ALIGNED(uint8 orig_pixels_0[1280][4]);
>-  SIMD_ALIGNED(uint8 orig_pixels_1[1280][4]);
>-  SIMD_ALIGNED(uint8 interpolate_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels_0[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels_1[1280][4]);
>+  SIMD_ALIGNED(uint8_t interpolate_pixels[1280][4]);
>   memset(orig_pixels_0, 0, sizeof(orig_pixels_0));
>   memset(orig_pixels_1, 0, sizeof(orig_pixels_1));
> 
>@@ -926,9 +926,9 @@ TEST_F(LibYUVPlanarTest, TestARGBInterpolate) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestInterpolatePlane) {
>-  SIMD_ALIGNED(uint8 orig_pixels_0[1280]);
>-  SIMD_ALIGNED(uint8 orig_pixels_1[1280]);
>-  SIMD_ALIGNED(uint8 interpolate_pixels[1280]);
>+  SIMD_ALIGNED(uint8_t orig_pixels_0[1280]);
>+  SIMD_ALIGNED(uint8_t orig_pixels_1[1280]);
>+  SIMD_ALIGNED(uint8_t interpolate_pixels[1280]);
>   memset(orig_pixels_0, 0, sizeof(orig_pixels_0));
>   memset(orig_pixels_1, 0, sizeof(orig_pixels_1));
> 
>@@ -1192,7 +1192,6 @@ static void TestBlendPlane(int width,
>   free_aligned_buffer_page_end(src_argb_alpha);
>   free_aligned_buffer_page_end(dst_argb_c);
>   free_aligned_buffer_page_end(dst_argb_opt);
>-  return;
> }
> 
> TEST_F(LibYUVPlanarTest, BlendPlane_Opt) {
>@@ -1286,7 +1285,6 @@ static void TestI420Blend(int width,
>   free_aligned_buffer_page_end(dst_y_opt);
>   free_aligned_buffer_page_end(dst_u_opt);
>   free_aligned_buffer_page_end(dst_v_opt);
>-  return;
> }
> 
> TEST_F(LibYUVPlanarTest, I420Blend_Opt) {
>@@ -1309,8 +1307,8 @@ TEST_F(LibYUVPlanarTest, I420Blend_Invert) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestAffine) {
>-  SIMD_ALIGNED(uint8 orig_pixels_0[1280][4]);
>-  SIMD_ALIGNED(uint8 interpolate_pixels_C[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels_0[1280][4]);
>+  SIMD_ALIGNED(uint8_t interpolate_pixels_C[1280][4]);
> 
>   for (int i = 0; i < 1280; ++i) {
>     for (int j = 0; j < 4; ++j) {
>@@ -1327,7 +1325,7 @@ TEST_F(LibYUVPlanarTest, TestAffine) {
>   EXPECT_EQ(191u, interpolate_pixels_C[255][3]);
> 
> #if defined(HAS_ARGBAFFINEROW_SSE2)
>-  SIMD_ALIGNED(uint8 interpolate_pixels_Opt[1280][4]);
>+  SIMD_ALIGNED(uint8_t interpolate_pixels_Opt[1280][4]);
>   ARGBAffineRow_SSE2(&orig_pixels_0[0][0], 0, &interpolate_pixels_Opt[0][0],
>                      uv_step, 1280);
>   EXPECT_EQ(0, memcmp(interpolate_pixels_Opt, interpolate_pixels_C, 1280 * 4));
>@@ -1367,7 +1365,7 @@ TEST_F(LibYUVPlanarTest, TestCopyPlane) {
> 
>   // Fill destination buffers with random data.
>   for (i = 0; i < y_plane_size; ++i) {
>-    uint8 random_number = fastrand() & 0x7f;
>+    uint8_t random_number = fastrand() & 0x7f;
>     dst_c[i] = random_number;
>     dst_opt[i] = dst_c[i];
>   }
>@@ -1390,8 +1388,9 @@ TEST_F(LibYUVPlanarTest, TestCopyPlane) {
>   }
> 
>   for (i = 0; i < y_plane_size; ++i) {
>-    if (dst_c[i] != dst_opt[i])
>+    if (dst_c[i] != dst_opt[i]) {
>       ++err;
>+    }
>   }
> 
>   free_aligned_buffer_page_end(orig_y);
>@@ -1867,12 +1866,12 @@ static int TestBlur(int width,
> 
>   MaskCpuFlags(disable_cpu_flags);
>   ARGBBlur(src_argb_a + off, kStride, dst_argb_c, kStride,
>-           reinterpret_cast<int32*>(dst_cumsum), width * 4, width,
>+           reinterpret_cast<int32_t*>(dst_cumsum), width * 4, width,
>            invert * height, radius);
>   MaskCpuFlags(benchmark_cpu_info);
>   for (int i = 0; i < benchmark_iterations; ++i) {
>     ARGBBlur(src_argb_a + off, kStride, dst_argb_opt, kStride,
>-             reinterpret_cast<int32*>(dst_cumsum), width * 4, width,
>+             reinterpret_cast<int32_t*>(dst_cumsum), width * 4, width,
>              invert * height, radius);
>   }
>   int max_diff = 0;
>@@ -1949,9 +1948,9 @@ TEST_F(LibYUVPlanarTest, ARGBBlurSmall_Opt) {
> }
> 
> TEST_F(LibYUVPlanarTest, TestARGBPolynomial) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_opt[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_c[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   SIMD_ALIGNED(static const float kWarmifyPolynomial[16]) = {
>@@ -2046,37 +2045,38 @@ int TestHalfFloatPlane(int benchmark_width,
>   const int y_plane_size = benchmark_width * benchmark_height * 2;
> 
>   align_buffer_page_end(orig_y, y_plane_size * 3);
>-  uint8* dst_opt = orig_y + y_plane_size;
>-  uint8* dst_c = orig_y + y_plane_size * 2;
>+  uint8_t* dst_opt = orig_y + y_plane_size;
>+  uint8_t* dst_c = orig_y + y_plane_size * 2;
> 
>   MemRandomize(orig_y, y_plane_size);
>   memset(dst_c, 0, y_plane_size);
>   memset(dst_opt, 1, y_plane_size);
> 
>   for (i = 0; i < y_plane_size / 2; ++i) {
>-    reinterpret_cast<uint16*>(orig_y)[i] &= mask;
>+    reinterpret_cast<uint16_t*>(orig_y)[i] &= mask;
>   }
> 
>   // Disable all optimizations.
>   MaskCpuFlags(disable_cpu_flags);
>   for (j = 0; j < benchmark_iterations; j++) {
>-    HalfFloatPlane(reinterpret_cast<uint16*>(orig_y), benchmark_width * 2,
>-                   reinterpret_cast<uint16*>(dst_c), benchmark_width * 2, scale,
>-                   benchmark_width, benchmark_height);
>+    HalfFloatPlane(reinterpret_cast<uint16_t*>(orig_y), benchmark_width * 2,
>+                   reinterpret_cast<uint16_t*>(dst_c), benchmark_width * 2,
>+                   scale, benchmark_width, benchmark_height);
>   }
> 
>   // Enable optimizations.
>   MaskCpuFlags(benchmark_cpu_info);
>   for (j = 0; j < benchmark_iterations; j++) {
>-    HalfFloatPlane(reinterpret_cast<uint16*>(orig_y), benchmark_width * 2,
>-                   reinterpret_cast<uint16*>(dst_opt), benchmark_width * 2,
>+    HalfFloatPlane(reinterpret_cast<uint16_t*>(orig_y), benchmark_width * 2,
>+                   reinterpret_cast<uint16_t*>(dst_opt), benchmark_width * 2,
>                    scale, benchmark_width, benchmark_height);
>   }
> 
>   int max_diff = 0;
>   for (i = 0; i < y_plane_size / 2; ++i) {
>-    int abs_diff = abs(static_cast<int>(reinterpret_cast<uint16*>(dst_c)[i]) -
>-                       static_cast<int>(reinterpret_cast<uint16*>(dst_opt)[i]));
>+    int abs_diff =
>+        abs(static_cast<int>(reinterpret_cast<uint16_t*>(dst_c)[i]) -
>+            static_cast<int>(reinterpret_cast<uint16_t*>(dst_opt)[i]));
>     if (abs_diff > max_diff) {
>       max_diff = abs_diff;
>     }
>@@ -2168,10 +2168,56 @@ TEST_F(LibYUVPlanarTest, TestHalfFloatPlane_12bit_One) {
>   EXPECT_LE(diff, 1);
> }
> 
>+float TestByteToFloat(int benchmark_width,
>+                      int benchmark_height,
>+                      int benchmark_iterations,
>+                      int disable_cpu_flags,
>+                      int benchmark_cpu_info,
>+                      float scale) {
>+  int i, j;
>+  const int y_plane_size = benchmark_width * benchmark_height;
>+
>+  align_buffer_page_end(orig_y, y_plane_size * (1 + 4 + 4));
>+  float* dst_opt = reinterpret_cast<float*>(orig_y + y_plane_size);
>+  float* dst_c = reinterpret_cast<float*>(orig_y + y_plane_size * 5);
>+
>+  MemRandomize(orig_y, y_plane_size);
>+  memset(dst_c, 0, y_plane_size * 4);
>+  memset(dst_opt, 1, y_plane_size * 4);
>+
>+  // Disable all optimizations.
>+  MaskCpuFlags(disable_cpu_flags);
>+  ByteToFloat(orig_y, dst_c, scale, y_plane_size);
>+
>+  // Enable optimizations.
>+  MaskCpuFlags(benchmark_cpu_info);
>+  for (j = 0; j < benchmark_iterations; j++) {
>+    ByteToFloat(orig_y, dst_opt, scale, y_plane_size);
>+  }
>+
>+  float max_diff = 0;
>+  for (i = 0; i < y_plane_size; ++i) {
>+    float abs_diff = fabs(dst_c[i] - dst_opt[i]);
>+    if (abs_diff > max_diff) {
>+      max_diff = abs_diff;
>+    }
>+  }
>+
>+  free_aligned_buffer_page_end(orig_y);
>+  return max_diff;
>+}
>+
>+TEST_F(LibYUVPlanarTest, TestByteToFloat) {
>+  float diff = TestByteToFloat(benchmark_width_, benchmark_height_,
>+                               benchmark_iterations_, disable_cpu_flags_,
>+                               benchmark_cpu_info_, 1.0f);
>+  EXPECT_EQ(0.f, diff);
>+}
>+
> TEST_F(LibYUVPlanarTest, TestARGBLumaColorTable) {
>-  SIMD_ALIGNED(uint8 orig_pixels[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_opt[1280][4]);
>-  SIMD_ALIGNED(uint8 dst_pixels_c[1280][4]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_opt[1280][4]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_c[1280][4]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
> 
>   align_buffer_page_end(lumacolortable, 32768);
>@@ -2343,7 +2389,7 @@ static int TestARGBRect(int width,
>   }
>   const int kStride = width * bpp;
>   const int kSize = kStride * height;
>-  const uint32 v32 = fastrand() & (bpp == 4 ? 0xffffffff : 0xff);
>+  const uint32_t v32 = fastrand() & (bpp == 4 ? 0xffffffff : 0xff);
> 
>   align_buffer_page_end(dst_argb_c, kSize + off);
>   align_buffer_page_end(dst_argb_opt, kSize + off);
>@@ -2631,21 +2677,21 @@ TEST_F(LibYUVPlanarTest, MergeUVRow_16_Opt) {
>   memset(dst_pixels_uv_opt, 0, kPixels * 2 * 2);
>   memset(dst_pixels_uv_c, 1, kPixels * 2 * 2);
> 
>-  MergeUVRow_16_C(reinterpret_cast<const uint16*>(src_pixels_u),
>-                  reinterpret_cast<const uint16*>(src_pixels_v),
>-                  reinterpret_cast<uint16*>(dst_pixels_uv_c), 64, kPixels);
>+  MergeUVRow_16_C(reinterpret_cast<const uint16_t*>(src_pixels_u),
>+                  reinterpret_cast<const uint16_t*>(src_pixels_v),
>+                  reinterpret_cast<uint16_t*>(dst_pixels_uv_c), 64, kPixels);
> 
>   int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>     if (has_avx2) {
>-      MergeUVRow_16_AVX2(reinterpret_cast<const uint16*>(src_pixels_u),
>-                         reinterpret_cast<const uint16*>(src_pixels_v),
>-                         reinterpret_cast<uint16*>(dst_pixels_uv_opt), 64,
>+      MergeUVRow_16_AVX2(reinterpret_cast<const uint16_t*>(src_pixels_u),
>+                         reinterpret_cast<const uint16_t*>(src_pixels_v),
>+                         reinterpret_cast<uint16_t*>(dst_pixels_uv_opt), 64,
>                          kPixels);
>     } else {
>-      MergeUVRow_16_C(reinterpret_cast<const uint16*>(src_pixels_u),
>-                      reinterpret_cast<const uint16*>(src_pixels_v),
>-                      reinterpret_cast<uint16*>(dst_pixels_uv_opt), 64,
>+      MergeUVRow_16_C(reinterpret_cast<const uint16_t*>(src_pixels_u),
>+                      reinterpret_cast<const uint16_t*>(src_pixels_v),
>+                      reinterpret_cast<uint16_t*>(dst_pixels_uv_opt), 64,
>                       kPixels);
>     }
>   }
>@@ -2661,7 +2707,7 @@ TEST_F(LibYUVPlanarTest, MergeUVRow_16_Opt) {
> }
> #endif
> 
>-// TODO(fbarchard): improve test for platforms and cpu detect
>+// TODO(fbarchard): Improve test for more platforms.
> #ifdef HAS_MULTIPLYROW_16_AVX2
> TEST_F(LibYUVPlanarTest, MultiplyRow_16_Opt) {
>   const int kPixels = benchmark_width_ * benchmark_height_;
>@@ -2673,18 +2719,18 @@ TEST_F(LibYUVPlanarTest, MultiplyRow_16_Opt) {
>   memset(dst_pixels_y_opt, 0, kPixels * 2);
>   memset(dst_pixels_y_c, 1, kPixels * 2);
> 
>-  MultiplyRow_16_C(reinterpret_cast<const uint16*>(src_pixels_y),
>-                   reinterpret_cast<uint16*>(dst_pixels_y_c), 64, kPixels);
>+  MultiplyRow_16_C(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                   reinterpret_cast<uint16_t*>(dst_pixels_y_c), 64, kPixels);
> 
>   int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>   for (int i = 0; i < benchmark_iterations_; ++i) {
>     if (has_avx2) {
>-      MultiplyRow_16_AVX2(reinterpret_cast<const uint16*>(src_pixels_y),
>-                          reinterpret_cast<uint16*>(dst_pixels_y_opt), 64,
>+      MultiplyRow_16_AVX2(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                          reinterpret_cast<uint16_t*>(dst_pixels_y_opt), 64,
>                           kPixels);
>     } else {
>-      MultiplyRow_16_C(reinterpret_cast<const uint16*>(src_pixels_y),
>-                       reinterpret_cast<uint16*>(dst_pixels_y_opt), 64,
>+      MultiplyRow_16_C(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                       reinterpret_cast<uint16_t*>(dst_pixels_y_opt), 64,
>                        kPixels);
>     }
>   }
>@@ -2697,7 +2743,160 @@ TEST_F(LibYUVPlanarTest, MultiplyRow_16_Opt) {
>   free_aligned_buffer_page_end(dst_pixels_y_opt);
>   free_aligned_buffer_page_end(dst_pixels_y_c);
> }
>-#endif
>+#endif  // HAS_MULTIPLYROW_16_AVX2
>+
>+TEST_F(LibYUVPlanarTest, Convert16To8Plane) {
>+  const int kPixels = benchmark_width_ * benchmark_height_;
>+  align_buffer_page_end(src_pixels_y, kPixels * 2);
>+  align_buffer_page_end(dst_pixels_y_opt, kPixels);
>+  align_buffer_page_end(dst_pixels_y_c, kPixels);
>+
>+  MemRandomize(src_pixels_y, kPixels * 2);
>+  memset(dst_pixels_y_opt, 0, kPixels);
>+  memset(dst_pixels_y_c, 1, kPixels);
>+
>+  MaskCpuFlags(disable_cpu_flags_);
>+  Convert16To8Plane(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                    benchmark_width_, dst_pixels_y_c, benchmark_width_, 16384,
>+                    benchmark_width_, benchmark_height_);
>+  MaskCpuFlags(benchmark_cpu_info_);
>+
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    Convert16To8Plane(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                      benchmark_width_, dst_pixels_y_opt, benchmark_width_,
>+                      16384, benchmark_width_, benchmark_height_);
>+  }
>+
>+  for (int i = 0; i < kPixels; ++i) {
>+    EXPECT_EQ(dst_pixels_y_opt[i], dst_pixels_y_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src_pixels_y);
>+  free_aligned_buffer_page_end(dst_pixels_y_opt);
>+  free_aligned_buffer_page_end(dst_pixels_y_c);
>+}
>+
>+// TODO(fbarchard): Improve test for more platforms.
>+#ifdef HAS_CONVERT16TO8ROW_AVX2
>+TEST_F(LibYUVPlanarTest, Convert16To8Row_Opt) {
>+  // AVX2 does multiple of 32, so round count up
>+  const int kPixels = (benchmark_width_ * benchmark_height_ + 31) & ~31;
>+  align_buffer_page_end(src_pixels_y, kPixels * 2);
>+  align_buffer_page_end(dst_pixels_y_opt, kPixels);
>+  align_buffer_page_end(dst_pixels_y_c, kPixels);
>+
>+  MemRandomize(src_pixels_y, kPixels * 2);
>+  // clamp source range to 10 bits.
>+  for (int i = 0; i < kPixels; ++i) {
>+    reinterpret_cast<uint16_t*>(src_pixels_y)[i] &= 1023;
>+  }
>+
>+  memset(dst_pixels_y_opt, 0, kPixels);
>+  memset(dst_pixels_y_c, 1, kPixels);
>+
>+  Convert16To8Row_C(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                    dst_pixels_y_c, 16384, kPixels);
>+
>+  int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>+  int has_ssse3 = TestCpuFlag(kCpuHasSSSE3);
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    if (has_avx2) {
>+      Convert16To8Row_AVX2(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                           dst_pixels_y_opt, 16384, kPixels);
>+    } else if (has_ssse3) {
>+      Convert16To8Row_SSSE3(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                            dst_pixels_y_opt, 16384, kPixels);
>+    } else {
>+      Convert16To8Row_C(reinterpret_cast<const uint16_t*>(src_pixels_y),
>+                        dst_pixels_y_opt, 16384, kPixels);
>+    }
>+  }
>+
>+  for (int i = 0; i < kPixels; ++i) {
>+    EXPECT_EQ(dst_pixels_y_opt[i], dst_pixels_y_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src_pixels_y);
>+  free_aligned_buffer_page_end(dst_pixels_y_opt);
>+  free_aligned_buffer_page_end(dst_pixels_y_c);
>+}
>+#endif  // HAS_CONVERT16TO8ROW_AVX2
>+
>+TEST_F(LibYUVPlanarTest, Convert8To16Plane) {
>+  const int kPixels = benchmark_width_ * benchmark_height_;
>+  align_buffer_page_end(src_pixels_y, kPixels);
>+  align_buffer_page_end(dst_pixels_y_opt, kPixels * 2);
>+  align_buffer_page_end(dst_pixels_y_c, kPixels * 2);
>+
>+  MemRandomize(src_pixels_y, kPixels);
>+  memset(dst_pixels_y_opt, 0, kPixels * 2);
>+  memset(dst_pixels_y_c, 1, kPixels * 2);
>+
>+  MaskCpuFlags(disable_cpu_flags_);
>+  Convert8To16Plane(src_pixels_y, benchmark_width_,
>+                    reinterpret_cast<uint16_t*>(dst_pixels_y_c),
>+                    benchmark_width_, 1024, benchmark_width_,
>+                    benchmark_height_);
>+  MaskCpuFlags(benchmark_cpu_info_);
>+
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    Convert8To16Plane(src_pixels_y, benchmark_width_,
>+                      reinterpret_cast<uint16_t*>(dst_pixels_y_opt),
>+                      benchmark_width_, 1024, benchmark_width_,
>+                      benchmark_height_);
>+  }
>+
>+  for (int i = 0; i < kPixels * 2; ++i) {
>+    EXPECT_EQ(dst_pixels_y_opt[i], dst_pixels_y_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src_pixels_y);
>+  free_aligned_buffer_page_end(dst_pixels_y_opt);
>+  free_aligned_buffer_page_end(dst_pixels_y_c);
>+}
>+
>+// TODO(fbarchard): Improve test for more platforms.
>+#ifdef HAS_CONVERT8TO16ROW_AVX2
>+TEST_F(LibYUVPlanarTest, Convert8To16Row_Opt) {
>+  const int kPixels = (benchmark_width_ * benchmark_height_ + 31) & ~31;
>+  align_buffer_page_end(src_pixels_y, kPixels);
>+  align_buffer_page_end(dst_pixels_y_opt, kPixels * 2);
>+  align_buffer_page_end(dst_pixels_y_c, kPixels * 2);
>+
>+  MemRandomize(src_pixels_y, kPixels);
>+  memset(dst_pixels_y_opt, 0, kPixels * 2);
>+  memset(dst_pixels_y_c, 1, kPixels * 2);
>+
>+  Convert8To16Row_C(src_pixels_y, reinterpret_cast<uint16_t*>(dst_pixels_y_c),
>+                    1024, kPixels);
>+
>+  int has_avx2 = TestCpuFlag(kCpuHasAVX2);
>+  int has_sse2 = TestCpuFlag(kCpuHasSSE2);
>+  for (int i = 0; i < benchmark_iterations_; ++i) {
>+    if (has_avx2) {
>+      Convert8To16Row_AVX2(src_pixels_y,
>+                           reinterpret_cast<uint16_t*>(dst_pixels_y_opt), 1024,
>+                           kPixels);
>+    } else if (has_sse2) {
>+      Convert8To16Row_SSE2(src_pixels_y,
>+                           reinterpret_cast<uint16_t*>(dst_pixels_y_opt), 1024,
>+                           kPixels);
>+    } else {
>+      Convert8To16Row_C(src_pixels_y,
>+                        reinterpret_cast<uint16_t*>(dst_pixels_y_opt), 1024,
>+                        kPixels);
>+    }
>+  }
>+
>+  for (int i = 0; i < kPixels * 2; ++i) {
>+    EXPECT_EQ(dst_pixels_y_opt[i], dst_pixels_y_c[i]);
>+  }
>+
>+  free_aligned_buffer_page_end(src_pixels_y);
>+  free_aligned_buffer_page_end(dst_pixels_y_opt);
>+  free_aligned_buffer_page_end(dst_pixels_y_c);
>+}
>+#endif  // HAS_CONVERT8TO16ROW_AVX2
> 
> float TestScaleMaxSamples(int benchmark_width,
>                           int benchmark_height,
>@@ -2709,8 +2908,8 @@ float TestScaleMaxSamples(int benchmark_width,
>   // NEON does multiple of 8, so round count up
>   const int kPixels = (benchmark_width * benchmark_height + 7) & ~7;
>   align_buffer_page_end(orig_y, kPixels * 4 * 3 + 48);
>-  uint8* dst_c = orig_y + kPixels * 4 + 16;
>-  uint8* dst_opt = orig_y + kPixels * 4 * 2 + 32;
>+  uint8_t* dst_c = orig_y + kPixels * 4 + 16;
>+  uint8_t* dst_opt = orig_y + kPixels * 4 * 2 + 32;
> 
>   // Randomize works but may contain some denormals affecting performance.
>   // MemRandomize(orig_y, kPixels * 4);
>@@ -2777,8 +2976,8 @@ float TestScaleSumSamples(int benchmark_width,
>   // NEON does multiple of 8, so round count up
>   const int kPixels = (benchmark_width * benchmark_height + 7) & ~7;
>   align_buffer_page_end(orig_y, kPixels * 4 * 3);
>-  uint8* dst_c = orig_y + kPixels * 4;
>-  uint8* dst_opt = orig_y + kPixels * 4 * 2;
>+  uint8_t* dst_c = orig_y + kPixels * 4;
>+  uint8_t* dst_opt = orig_y + kPixels * 4 * 2;
> 
>   // Randomize works but may contain some denormals affecting performance.
>   // MemRandomize(orig_y, kPixels * 4);
>@@ -2855,8 +3054,8 @@ float TestScaleSamples(int benchmark_width,
>   // NEON does multiple of 8, so round count up
>   const int kPixels = (benchmark_width * benchmark_height + 7) & ~7;
>   align_buffer_page_end(orig_y, kPixels * 4 * 3);
>-  uint8* dst_c = orig_y + kPixels * 4;
>-  uint8* dst_opt = orig_y + kPixels * 4 * 2;
>+  uint8_t* dst_c = orig_y + kPixels * 4;
>+  uint8_t* dst_opt = orig_y + kPixels * 4 * 2;
> 
>   // Randomize works but may contain some denormals affecting performance.
>   // MemRandomize(orig_y, kPixels * 4);
>@@ -2918,8 +3117,8 @@ float TestCopySamples(int benchmark_width,
>   // NEON does multiple of 16 floats, so round count up
>   const int kPixels = (benchmark_width * benchmark_height + 15) & ~15;
>   align_buffer_page_end(orig_y, kPixels * 4 * 3);
>-  uint8* dst_c = orig_y + kPixels * 4;
>-  uint8* dst_opt = orig_y + kPixels * 4 * 2;
>+  uint8_t* dst_c = orig_y + kPixels * 4;
>+  uint8_t* dst_opt = orig_y + kPixels * 4 * 2;
> 
>   // Randomize works but may contain some denormals affecting performance.
>   // MemRandomize(orig_y, kPixels * 4);
>@@ -2970,13 +3169,13 @@ TEST_F(LibYUVPlanarTest, TestCopySamples_Opt) {
>   EXPECT_EQ(0, diff);
> }
> 
>-extern "C" void GaussRow_NEON(const uint32* src, uint16* dst, int width);
>-extern "C" void GaussRow_C(const uint32* src, uint16* dst, int width);
>+extern "C" void GaussRow_NEON(const uint32_t* src, uint16_t* dst, int width);
>+extern "C" void GaussRow_C(const uint32_t* src, uint16_t* dst, int width);
> 
> TEST_F(LibYUVPlanarTest, TestGaussRow_Opt) {
>-  SIMD_ALIGNED(uint32 orig_pixels[640 + 4]);
>-  SIMD_ALIGNED(uint16 dst_pixels_c[640]);
>-  SIMD_ALIGNED(uint16 dst_pixels_opt[640]);
>+  SIMD_ALIGNED(uint32_t orig_pixels[640 + 4]);
>+  SIMD_ALIGNED(uint16_t dst_pixels_c[640]);
>+  SIMD_ALIGNED(uint16_t dst_pixels_opt[640]);
> 
>   memset(orig_pixels, 0, sizeof(orig_pixels));
>   memset(dst_pixels_c, 1, sizeof(dst_pixels_c));
>@@ -3004,30 +3203,30 @@ TEST_F(LibYUVPlanarTest, TestGaussRow_Opt) {
>   }
> 
>   EXPECT_EQ(dst_pixels_c[0],
>-            static_cast<uint16>(0 * 1 + 1 * 4 + 2 * 6 + 3 * 4 + 4 * 1));
>-  EXPECT_EQ(dst_pixels_c[639], static_cast<uint16>(10256));
>+            static_cast<uint16_t>(0 * 1 + 1 * 4 + 2 * 6 + 3 * 4 + 4 * 1));
>+  EXPECT_EQ(dst_pixels_c[639], static_cast<uint16_t>(10256));
> }
> 
>-extern "C" void GaussCol_NEON(const uint16* src0,
>-                              const uint16* src1,
>-                              const uint16* src2,
>-                              const uint16* src3,
>-                              const uint16* src4,
>-                              uint32* dst,
>+extern "C" void GaussCol_NEON(const uint16_t* src0,
>+                              const uint16_t* src1,
>+                              const uint16_t* src2,
>+                              const uint16_t* src3,
>+                              const uint16_t* src4,
>+                              uint32_t* dst,
>                               int width);
> 
>-extern "C" void GaussCol_C(const uint16* src0,
>-                           const uint16* src1,
>-                           const uint16* src2,
>-                           const uint16* src3,
>-                           const uint16* src4,
>-                           uint32* dst,
>+extern "C" void GaussCol_C(const uint16_t* src0,
>+                           const uint16_t* src1,
>+                           const uint16_t* src2,
>+                           const uint16_t* src3,
>+                           const uint16_t* src4,
>+                           uint32_t* dst,
>                            int width);
> 
> TEST_F(LibYUVPlanarTest, TestGaussCol_Opt) {
>-  SIMD_ALIGNED(uint16 orig_pixels[640 * 5]);
>-  SIMD_ALIGNED(uint32 dst_pixels_c[640]);
>-  SIMD_ALIGNED(uint32 dst_pixels_opt[640]);
>+  SIMD_ALIGNED(uint16_t orig_pixels[640 * 5]);
>+  SIMD_ALIGNED(uint32_t dst_pixels_c[640]);
>+  SIMD_ALIGNED(uint32_t dst_pixels_opt[640]);
> 
>   memset(orig_pixels, 0, sizeof(orig_pixels));
>   memset(dst_pixels_c, 1, sizeof(dst_pixels_c));
>@@ -3062,9 +3261,10 @@ TEST_F(LibYUVPlanarTest, TestGaussCol_Opt) {
>     EXPECT_EQ(dst_pixels_c[i], dst_pixels_opt[i]);
>   }
> 
>-  EXPECT_EQ(dst_pixels_c[0], static_cast<uint32>(0 * 1 + 640 * 4 + 640 * 2 * 6 +
>-                                                 640 * 3 * 4 + 640 * 4 * 1));
>-  EXPECT_EQ(dst_pixels_c[639], static_cast<uint32>(30704));
>+  EXPECT_EQ(dst_pixels_c[0],
>+            static_cast<uint32_t>(0 * 1 + 640 * 4 + 640 * 2 * 6 + 640 * 3 * 4 +
>+                                  640 * 4 * 1));
>+  EXPECT_EQ(dst_pixels_c[639], static_cast<uint32_t>(30704));
> }
> 
> }  // namespace libyuv
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_argb_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_argb_test.cc
>index d11aec2047603cfa3dc37a6a3399d75f68cbb8e2..a1be85b8d8ab49807ec4e9270a7f2d5156671ac7 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_argb_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_argb_test.cc
>@@ -37,7 +37,7 @@ static int ARGBTestFilter(int src_width,
> 
>   int i, j;
>   const int b = 0;  // 128 to test for padding/stride.
>-  int64 src_argb_plane_size =
>+  int64_t src_argb_plane_size =
>       (Abs(src_width) + b * 2) * (Abs(src_height) + b * 2) * 4LL;
>   int src_stride_argb = (b * 2 + Abs(src_width)) * 4;
> 
>@@ -48,7 +48,8 @@ static int ARGBTestFilter(int src_width,
>   }
>   MemRandomize(src_argb, src_argb_plane_size);
> 
>-  int64 dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4LL;
>+  int64_t dst_argb_plane_size =
>+      (dst_width + b * 2) * (dst_height + b * 2) * 4LL;
>   int dst_stride_argb = (b * 2 + dst_width) * 4;
> 
>   align_buffer_page_end(dst_argb_c, dst_argb_plane_size);
>@@ -116,11 +117,11 @@ static int ARGBTestFilter(int src_width,
> static const int kTileX = 8;
> static const int kTileY = 8;
> 
>-static int TileARGBScale(const uint8* src_argb,
>+static int TileARGBScale(const uint8_t* src_argb,
>                          int src_stride_argb,
>                          int src_width,
>                          int src_height,
>-                         uint8* dst_argb,
>+                         uint8_t* dst_argb,
>                          int dst_stride_argb,
>                          int dst_width,
>                          int dst_height,
>@@ -157,7 +158,7 @@ static int ARGBClipTestFilter(int src_width,
>   }
> 
>   const int b = 128;
>-  int64 src_argb_plane_size =
>+  int64_t src_argb_plane_size =
>       (Abs(src_width) + b * 2) * (Abs(src_height) + b * 2) * 4;
>   int src_stride_argb = (b * 2 + Abs(src_width)) * 4;
> 
>@@ -168,7 +169,7 @@ static int ARGBClipTestFilter(int src_width,
>   }
>   memset(src_argb, 1, src_argb_plane_size);
> 
>-  int64 dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4;
>+  int64_t dst_argb_plane_size = (dst_width + b * 2) * (dst_height + b * 2) * 4;
>   int dst_stride_argb = (b * 2 + dst_width) * 4;
> 
>   int i, j;
>@@ -310,19 +311,20 @@ TEST_SCALETO(ARGBScale, 1280, 720)
> #undef TEST_SCALETO
> 
> // Scale with YUV conversion to ARGB and clipping.
>+// TODO(fbarchard): Add fourcc support.  All 4 ARGB formats is easy to support.
> LIBYUV_API
>-int YUVToARGBScaleReference2(const uint8* src_y,
>+int YUVToARGBScaleReference2(const uint8_t* src_y,
>                              int src_stride_y,
>-                             const uint8* src_u,
>+                             const uint8_t* src_u,
>                              int src_stride_u,
>-                             const uint8* src_v,
>+                             const uint8_t* src_v,
>                              int src_stride_v,
>-                             uint32 /* src_fourcc */,  // TODO: Add support.
>+                             uint32 /* src_fourcc */,
>                              int src_width,
>                              int src_height,
>-                             uint8* dst_argb,
>+                             uint8_t* dst_argb,
>                              int dst_stride_argb,
>-                             uint32 /* dst_fourcc */,  // TODO: Add support.
>+                             uint32 /* dst_fourcc */,
>                              int dst_width,
>                              int dst_height,
>                              int clip_x,
>@@ -330,7 +332,8 @@ int YUVToARGBScaleReference2(const uint8* src_y,
>                              int clip_width,
>                              int clip_height,
>                              enum FilterMode filtering) {
>-  uint8* argb_buffer = static_cast<uint8*>(malloc(src_width * src_height * 4));
>+  uint8_t* argb_buffer =
>+      static_cast<uint8_t*>(malloc(src_width * src_height * 4));
>   int r;
>   I420ToARGB(src_y, src_stride_y, src_u, src_stride_u, src_v, src_stride_v,
>              argb_buffer, src_width * 4, src_width, src_height);
>@@ -342,7 +345,12 @@ int YUVToARGBScaleReference2(const uint8* src_y,
>   return r;
> }
> 
>-static void FillRamp(uint8* buf, int width, int height, int v, int dx, int dy) {
>+static void FillRamp(uint8_t* buf,
>+                     int width,
>+                     int height,
>+                     int v,
>+                     int dx,
>+                     int dy) {
>   int rv = v;
>   for (int y = 0; y < height; ++y) {
>     for (int x = 0; x < width; ++x) {
>@@ -369,8 +377,8 @@ static int YUVToARGBTestFilter(int src_width,
>                                int dst_height,
>                                FilterMode f,
>                                int benchmark_iterations) {
>-  int64 src_y_plane_size = Abs(src_width) * Abs(src_height);
>-  int64 src_uv_plane_size =
>+  int64_t src_y_plane_size = Abs(src_width) * Abs(src_height);
>+  int64_t src_uv_plane_size =
>       ((Abs(src_width) + 1) / 2) * ((Abs(src_height) + 1) / 2);
>   int src_stride_y = Abs(src_width);
>   int src_stride_uv = (Abs(src_width) + 1) / 2;
>@@ -379,7 +387,7 @@ static int YUVToARGBTestFilter(int src_width,
>   align_buffer_page_end(src_u, src_uv_plane_size);
>   align_buffer_page_end(src_v, src_uv_plane_size);
> 
>-  int64 dst_argb_plane_size = (dst_width) * (dst_height)*4LL;
>+  int64_t dst_argb_plane_size = (dst_width) * (dst_height)*4LL;
>   int dst_stride_argb = (dst_width)*4;
>   align_buffer_page_end(dst_argb_c, dst_argb_plane_size);
>   align_buffer_page_end(dst_argb_opt, dst_argb_plane_size);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_test.cc
>index c39211a161b5bb1a326bac12dceda3a4fe73a41e..08b6cffaa26b7863371e691df89f8be135c7470b 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/scale_test.cc
>@@ -38,8 +38,8 @@ static int TestFilter(int src_width,
>   int src_width_uv = (Abs(src_width) + 1) >> 1;
>   int src_height_uv = (Abs(src_height) + 1) >> 1;
> 
>-  int64 src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>-  int64 src_uv_plane_size = (src_width_uv) * (src_height_uv);
>+  int64_t src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>+  int64_t src_uv_plane_size = (src_width_uv) * (src_height_uv);
> 
>   int src_stride_y = Abs(src_width);
>   int src_stride_uv = src_width_uv;
>@@ -58,8 +58,8 @@ static int TestFilter(int src_width,
>   int dst_width_uv = (dst_width + 1) >> 1;
>   int dst_height_uv = (dst_height + 1) >> 1;
> 
>-  int64 dst_y_plane_size = (dst_width) * (dst_height);
>-  int64 dst_uv_plane_size = (dst_width_uv) * (dst_height_uv);
>+  int64_t dst_y_plane_size = (dst_width) * (dst_height);
>+  int64_t dst_uv_plane_size = (dst_width_uv) * (dst_height_uv);
> 
>   int dst_stride_y = dst_width;
>   int dst_stride_uv = dst_width_uv;
>@@ -157,8 +157,8 @@ static int TestFilter_16(int src_width,
>   int src_width_uv = (Abs(src_width) + 1) >> 1;
>   int src_height_uv = (Abs(src_height) + 1) >> 1;
> 
>-  int64 src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>-  int64 src_uv_plane_size = (src_width_uv) * (src_height_uv);
>+  int64_t src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>+  int64_t src_uv_plane_size = (src_width_uv) * (src_height_uv);
> 
>   int src_stride_y = Abs(src_width);
>   int src_stride_uv = src_width_uv;
>@@ -173,9 +173,9 @@ static int TestFilter_16(int src_width,
>     printf("Skipped.  Alloc failed " FILELINESTR(__FILE__, __LINE__) "\n");
>     return 0;
>   }
>-  uint16* p_src_y_16 = reinterpret_cast<uint16*>(src_y_16);
>-  uint16* p_src_u_16 = reinterpret_cast<uint16*>(src_u_16);
>-  uint16* p_src_v_16 = reinterpret_cast<uint16*>(src_v_16);
>+  uint16_t* p_src_y_16 = reinterpret_cast<uint16_t*>(src_y_16);
>+  uint16_t* p_src_u_16 = reinterpret_cast<uint16_t*>(src_u_16);
>+  uint16_t* p_src_v_16 = reinterpret_cast<uint16_t*>(src_v_16);
> 
>   MemRandomize(src_y, src_y_plane_size);
>   MemRandomize(src_u, src_uv_plane_size);
>@@ -205,9 +205,9 @@ static int TestFilter_16(int src_width,
>   align_buffer_page_end(dst_u_16, dst_uv_plane_size * 2);
>   align_buffer_page_end(dst_v_16, dst_uv_plane_size * 2);
> 
>-  uint16* p_dst_y_16 = reinterpret_cast<uint16*>(dst_y_16);
>-  uint16* p_dst_u_16 = reinterpret_cast<uint16*>(dst_u_16);
>-  uint16* p_dst_v_16 = reinterpret_cast<uint16*>(dst_v_16);
>+  uint16_t* p_dst_y_16 = reinterpret_cast<uint16_t*>(dst_y_16);
>+  uint16_t* p_dst_u_16 = reinterpret_cast<uint16_t*>(dst_u_16);
>+  uint16_t* p_dst_v_16 = reinterpret_cast<uint16_t*>(dst_v_16);
> 
>   MaskCpuFlags(disable_cpu_flags);  // Disable all CPU optimization.
>   I420Scale(src_y, src_stride_y, src_u, src_stride_uv, src_v, src_stride_uv,
>@@ -345,9 +345,9 @@ TEST_SCALETO(Scale, 1280, 720)
> 
> #ifdef HAS_SCALEROWDOWN2_SSSE3
> TEST_F(LibYUVScaleTest, TestScaleRowDown2Box_Odd_SSSE3) {
>-  SIMD_ALIGNED(uint8 orig_pixels[128 * 2]);
>-  SIMD_ALIGNED(uint8 dst_pixels_opt[64]);
>-  SIMD_ALIGNED(uint8 dst_pixels_c[64]);
>+  SIMD_ALIGNED(uint8_t orig_pixels[128 * 2]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_opt[64]);
>+  SIMD_ALIGNED(uint8_t dst_pixels_c[64]);
>   memset(orig_pixels, 0, sizeof(orig_pixels));
>   memset(dst_pixels_opt, 0, sizeof(dst_pixels_opt));
>   memset(dst_pixels_c, 0, sizeof(dst_pixels_c));
>@@ -433,19 +433,19 @@ TEST_F(LibYUVScaleTest, TestScaleRowDown2Box_Odd_SSSE3) {
> }
> #endif  // HAS_SCALEROWDOWN2_SSSE3
> 
>-extern "C" void ScaleRowUp2_16_NEON(const uint16* src_ptr,
>+extern "C" void ScaleRowUp2_16_NEON(const uint16_t* src_ptr,
>                                     ptrdiff_t src_stride,
>-                                    uint16* dst,
>+                                    uint16_t* dst,
>                                     int dst_width);
>-extern "C" void ScaleRowUp2_16_C(const uint16* src_ptr,
>+extern "C" void ScaleRowUp2_16_C(const uint16_t* src_ptr,
>                                  ptrdiff_t src_stride,
>-                                 uint16* dst,
>+                                 uint16_t* dst,
>                                  int dst_width);
> 
> TEST_F(LibYUVScaleTest, TestScaleRowUp2_16) {
>-  SIMD_ALIGNED(uint16 orig_pixels[640 * 2 + 1]);  // 2 rows + 1 pixel overrun.
>-  SIMD_ALIGNED(uint16 dst_pixels_opt[1280]);
>-  SIMD_ALIGNED(uint16 dst_pixels_c[1280]);
>+  SIMD_ALIGNED(uint16_t orig_pixels[640 * 2 + 1]);  // 2 rows + 1 pixel overrun.
>+  SIMD_ALIGNED(uint16_t dst_pixels_opt[1280]);
>+  SIMD_ALIGNED(uint16_t dst_pixels_c[1280]);
> 
>   memset(orig_pixels, 0, sizeof(orig_pixels));
>   memset(dst_pixels_opt, 1, sizeof(dst_pixels_opt));
>@@ -475,15 +475,15 @@ TEST_F(LibYUVScaleTest, TestScaleRowUp2_16) {
>   EXPECT_EQ(dst_pixels_c[1279], 800);
> }
> 
>-extern "C" void ScaleRowDown2Box_16_NEON(const uint16* src_ptr,
>+extern "C" void ScaleRowDown2Box_16_NEON(const uint16_t* src_ptr,
>                                          ptrdiff_t src_stride,
>-                                         uint16* dst,
>+                                         uint16_t* dst,
>                                          int dst_width);
> 
> TEST_F(LibYUVScaleTest, TestScaleRowDown2Box_16) {
>-  SIMD_ALIGNED(uint16 orig_pixels[2560 * 2]);
>-  SIMD_ALIGNED(uint16 dst_pixels_c[1280]);
>-  SIMD_ALIGNED(uint16 dst_pixels_opt[1280]);
>+  SIMD_ALIGNED(uint16_t orig_pixels[2560 * 2]);
>+  SIMD_ALIGNED(uint16_t dst_pixels_c[1280]);
>+  SIMD_ALIGNED(uint16_t dst_pixels_opt[1280]);
> 
>   memset(orig_pixels, 0, sizeof(orig_pixels));
>   memset(dst_pixels_c, 1, sizeof(dst_pixels_c));
>@@ -530,7 +530,7 @@ static int TestPlaneFilter_16(int src_width,
>   }
> 
>   int i;
>-  int64 src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>+  int64_t src_y_plane_size = (Abs(src_width)) * (Abs(src_height));
>   int src_stride_y = Abs(src_width);
>   int dst_y_plane_size = dst_width * dst_height;
>   int dst_stride_y = dst_width;
>@@ -539,8 +539,8 @@ static int TestPlaneFilter_16(int src_width,
>   align_buffer_page_end(src_y_16, src_y_plane_size * 2);
>   align_buffer_page_end(dst_y_8, dst_y_plane_size);
>   align_buffer_page_end(dst_y_16, dst_y_plane_size * 2);
>-  uint16* p_src_y_16 = reinterpret_cast<uint16*>(src_y_16);
>-  uint16* p_dst_y_16 = reinterpret_cast<uint16*>(dst_y_16);
>+  uint16_t* p_src_y_16 = reinterpret_cast<uint16_t*>(src_y_16);
>+  uint16_t* p_dst_y_16 = reinterpret_cast<uint16_t*>(dst_y_16);
> 
>   MemRandomize(src_y, src_y_plane_size);
>   memset(dst_y_8, 0, dst_y_plane_size);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.cc
>index 1ad4dece861e74a80ad8c54bd30bae8574844550..20aadb44e2faf809f938515b538f6868ed14a108 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.cc
>@@ -19,10 +19,6 @@
> #endif
> #include "libyuv/cpu_id.h"
> 
>-// Change this to 1000 for benchmarking.
>-// TODO(fbarchard): Add command line parsing to pass this as option.
>-#define BENCHMARK_ITERATIONS 1
>-
> unsigned int fastrand_seed = 0xfb;
> 
> #ifdef LIBYUV_USE_GFLAGS
>@@ -35,11 +31,11 @@ DEFINE_int32(libyuv_cpu_info,
>              "cpu flags for benchmark code. 1 = C, -1 = SIMD");
> #else
> // Disable command line parameters if gflags disabled.
>-static const int32 FLAGS_libyuv_width = 0;
>-static const int32 FLAGS_libyuv_height = 0;
>-static const int32 FLAGS_libyuv_repeat = 0;
>-static const int32 FLAGS_libyuv_flags = 0;
>-static const int32 FLAGS_libyuv_cpu_info = 0;
>+static const int32_t FLAGS_libyuv_width = 0;
>+static const int32_t FLAGS_libyuv_height = 0;
>+static const int32_t FLAGS_libyuv_repeat = 0;
>+static const int32_t FLAGS_libyuv_flags = 0;
>+static const int32_t FLAGS_libyuv_cpu_info = 0;
> #endif
> 
> // For quicker unittests, default is 128 x 72.  But when benchmarking,
>@@ -47,7 +43,7 @@ static const int32 FLAGS_libyuv_cpu_info = 0;
> // Set flags to -1 for benchmarking to avoid slower C code.
> 
> LibYUVConvertTest::LibYUVConvertTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -92,12 +88,6 @@ LibYUVConvertTest::LibYUVConvertTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -107,7 +97,7 @@ LibYUVConvertTest::LibYUVConvertTest()
> }
> 
> LibYUVColorTest::LibYUVColorTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -152,12 +142,6 @@ LibYUVColorTest::LibYUVColorTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -167,7 +151,7 @@ LibYUVColorTest::LibYUVColorTest()
> }
> 
> LibYUVScaleTest::LibYUVScaleTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -212,12 +196,6 @@ LibYUVScaleTest::LibYUVScaleTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -227,7 +205,7 @@ LibYUVScaleTest::LibYUVScaleTest()
> }
> 
> LibYUVRotateTest::LibYUVRotateTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -272,12 +250,6 @@ LibYUVRotateTest::LibYUVRotateTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -287,7 +259,7 @@ LibYUVRotateTest::LibYUVRotateTest()
> }
> 
> LibYUVPlanarTest::LibYUVPlanarTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -332,12 +304,6 @@ LibYUVPlanarTest::LibYUVPlanarTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -347,7 +313,7 @@ LibYUVPlanarTest::LibYUVPlanarTest()
> }
> 
> LibYUVBaseTest::LibYUVBaseTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -392,12 +358,6 @@ LibYUVBaseTest::LibYUVBaseTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>@@ -407,7 +367,7 @@ LibYUVBaseTest::LibYUVBaseTest()
> }
> 
> LibYUVCompareTest::LibYUVCompareTest()
>-    : benchmark_iterations_(BENCHMARK_ITERATIONS),
>+    : benchmark_iterations_(1),
>       benchmark_width_(128),
>       benchmark_height_(72),
>       disable_cpu_flags_(1),
>@@ -452,12 +412,6 @@ LibYUVCompareTest::LibYUVCompareTest()
>     benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
>   }
>   libyuv::MaskCpuFlags(benchmark_cpu_info_);
>-  benchmark_pixels_div256_ =
>-      static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>-                            static_cast<double>(Abs(benchmark_height_)) *
>-                            static_cast<double>(benchmark_iterations_) +
>-                        255.0) /
>-                       256.0);
>   benchmark_pixels_div1280_ =
>       static_cast<int>((static_cast<double>(Abs(benchmark_width_)) *
>                             static_cast<double>(Abs(benchmark_height_)) *
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.h
>index 6454389d52d1a78591c7d9ac6885ef11b1f0f9ee..87907fa1603922f7f518e94719973e463cd1f8ee 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/unit_test.h
>@@ -69,10 +69,10 @@ static inline bool SizeValid(int src_width,
>   return true;
> }
> 
>-#define align_buffer_page_end(var, size)                              \
>-  uint8* var##_mem =                                                  \
>-      reinterpret_cast<uint8*>(malloc(((size) + 4095 + 63) & ~4095)); \
>-  uint8* var = reinterpret_cast<uint8*>(                              \
>+#define align_buffer_page_end(var, size)                                \
>+  uint8_t* var##_mem =                                                  \
>+      reinterpret_cast<uint8_t*>(malloc(((size) + 4095 + 63) & ~4095)); \
>+  uint8_t* var = reinterpret_cast<uint8_t*>(                            \
>       (intptr_t)(var##_mem + (((size) + 4095 + 63) & ~4095) - (size)) & ~63)
> 
> #define free_aligned_buffer_page_end(var) \
>@@ -111,10 +111,10 @@ inline int fastrand() {
>   return static_cast<int>((fastrand_seed >> 16) & 0xffff);
> }
> 
>-static inline void MemRandomize(uint8* dst, int64 len) {
>-  int64 i;
>+static inline void MemRandomize(uint8_t* dst, int64_t len) {
>+  int64_t i;
>   for (i = 0; i < len - 1; i += 2) {
>-    *reinterpret_cast<uint16*>(dst) = fastrand();
>+    *reinterpret_cast<uint16_t*>(dst) = fastrand();
>     dst += 2;
>   }
>   for (; i < len; ++i) {
>@@ -126,10 +126,9 @@ class LibYUVColorTest : public ::testing::Test {
>  protected:
>   LibYUVColorTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -139,10 +138,9 @@ class LibYUVConvertTest : public ::testing::Test {
>  protected:
>   LibYUVConvertTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -152,10 +150,9 @@ class LibYUVScaleTest : public ::testing::Test {
>  protected:
>   LibYUVScaleTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -165,10 +162,9 @@ class LibYUVRotateTest : public ::testing::Test {
>  protected:
>   LibYUVRotateTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -178,10 +174,9 @@ class LibYUVPlanarTest : public ::testing::Test {
>  protected:
>   LibYUVPlanarTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -191,10 +186,9 @@ class LibYUVBaseTest : public ::testing::Test {
>  protected:
>   LibYUVBaseTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>@@ -204,10 +198,9 @@ class LibYUVCompareTest : public ::testing::Test {
>  protected:
>   LibYUVCompareTest();
> 
>-  int benchmark_iterations_;     // Default 1. Use 1000 for benchmarking.
>-  int benchmark_width_;          // Default 1280.  Use 640 for benchmarking VGA.
>-  int benchmark_height_;         // Default 720.  Use 360 for benchmarking VGA.
>-  int benchmark_pixels_div256_;  // Total pixels to benchmark / 256.
>+  int benchmark_iterations_;  // Default 1. Use 1000 for benchmarking.
>+  int benchmark_width_;       // Default 1280.  Use 640 for benchmarking VGA.
>+  int benchmark_height_;      // Default 720.  Use 360 for benchmarking VGA.
>   int benchmark_pixels_div1280_;  // Total pixels to benchmark / 1280.
>   int disable_cpu_flags_;         // Default 1.  Use -1 for benchmarking.
>   int benchmark_cpu_info_;        // Default -1.  Use 1 to disable SIMD.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/video_common_test.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/video_common_test.cc
>index f16b6772f95bad552a316609494f93b5804b1d87..4d89586e76f225c04736d27964b49152130b104f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/video_common_test.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/unit_test/video_common_test.cc
>@@ -18,15 +18,12 @@ namespace libyuv {
> 
> // Tests FourCC codes in video common, which are used for ConvertToI420().
> 
>-static bool TestValidChar(uint32 onecc) {
>-  if ((onecc >= '0' && onecc <= '9') || (onecc >= 'A' && onecc <= 'Z') ||
>-      (onecc >= 'a' && onecc <= 'z') || (onecc == ' ') || (onecc == 0xff)) {
>-    return true;
>-  }
>-  return false;
>+static bool TestValidChar(uint32_t onecc) {
>+  return (onecc >= '0' && onecc <= '9') || (onecc >= 'A' && onecc <= 'Z') ||
>+         (onecc >= 'a' && onecc <= 'z') || (onecc == ' ') || (onecc == 0xff);
> }
> 
>-static bool TestValidFourCC(uint32 fourcc, int bpp) {
>+static bool TestValidFourCC(uint32_t fourcc, int bpp) {
>   if (!TestValidChar(fourcc & 0xff) || !TestValidChar((fourcc >> 8) & 0xff) ||
>       !TestValidChar((fourcc >> 16) & 0xff) ||
>       !TestValidChar((fourcc >> 24) & 0xff)) {
>@@ -39,23 +36,23 @@ static bool TestValidFourCC(uint32 fourcc, int bpp) {
> }
> 
> TEST_F(LibYUVBaseTest, TestCanonicalFourCC) {
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_I420), CanonicalFourCC(FOURCC_IYUV));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_I420), CanonicalFourCC(FOURCC_YU12));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_I422), CanonicalFourCC(FOURCC_YU16));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_I444), CanonicalFourCC(FOURCC_YU24));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_YUY2), CanonicalFourCC(FOURCC_YUYV));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_YUY2), CanonicalFourCC(FOURCC_YUVS));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_UYVY), CanonicalFourCC(FOURCC_HDYC));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_UYVY), CanonicalFourCC(FOURCC_2VUY));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_MJPG), CanonicalFourCC(FOURCC_JPEG));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_MJPG), CanonicalFourCC(FOURCC_DMB1));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_RAW), CanonicalFourCC(FOURCC_RGB3));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_24BG), CanonicalFourCC(FOURCC_BGR3));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_BGRA), CanonicalFourCC(FOURCC_CM32));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_RAW), CanonicalFourCC(FOURCC_CM24));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_RGBO), CanonicalFourCC(FOURCC_L555));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_RGBP), CanonicalFourCC(FOURCC_L565));
>-  EXPECT_EQ(static_cast<uint32>(FOURCC_RGBO), CanonicalFourCC(FOURCC_5551));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_I420), CanonicalFourCC(FOURCC_IYUV));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_I420), CanonicalFourCC(FOURCC_YU12));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_I422), CanonicalFourCC(FOURCC_YU16));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_I444), CanonicalFourCC(FOURCC_YU24));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_YUY2), CanonicalFourCC(FOURCC_YUYV));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_YUY2), CanonicalFourCC(FOURCC_YUVS));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_UYVY), CanonicalFourCC(FOURCC_HDYC));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_UYVY), CanonicalFourCC(FOURCC_2VUY));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_MJPG), CanonicalFourCC(FOURCC_JPEG));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_MJPG), CanonicalFourCC(FOURCC_DMB1));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_RAW), CanonicalFourCC(FOURCC_RGB3));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_24BG), CanonicalFourCC(FOURCC_BGR3));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_BGRA), CanonicalFourCC(FOURCC_CM32));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_RAW), CanonicalFourCC(FOURCC_CM24));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_RGBO), CanonicalFourCC(FOURCC_L555));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_RGBP), CanonicalFourCC(FOURCC_L565));
>+  EXPECT_EQ(static_cast<uint32_t>(FOURCC_RGBO), CanonicalFourCC(FOURCC_5551));
> }
> 
> TEST_F(LibYUVBaseTest, TestFourCC) {
>@@ -73,12 +70,16 @@ TEST_F(LibYUVBaseTest, TestFourCC) {
>   EXPECT_TRUE(TestValidFourCC(FOURCC_ARGB, FOURCC_BPP_ARGB));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_BGRA, FOURCC_BPP_BGRA));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_ABGR, FOURCC_BPP_ABGR));
>+  EXPECT_TRUE(TestValidFourCC(FOURCC_AR30, FOURCC_BPP_AR30));
>+  EXPECT_TRUE(TestValidFourCC(FOURCC_AB30, FOURCC_BPP_AB30));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_24BG, FOURCC_BPP_24BG));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_RAW, FOURCC_BPP_RAW));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBA, FOURCC_BPP_RGBA));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBP, FOURCC_BPP_RGBP));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBO, FOURCC_BPP_RGBO));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_R444, FOURCC_BPP_R444));
>+  EXPECT_TRUE(TestValidFourCC(FOURCC_H420, FOURCC_BPP_H420));
>+  EXPECT_TRUE(TestValidFourCC(FOURCC_H010, FOURCC_BPP_H010));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_MJPG, FOURCC_BPP_MJPG));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_YV12, FOURCC_BPP_YV12));
>   EXPECT_TRUE(TestValidFourCC(FOURCC_YV16, FOURCC_BPP_YV16));
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/Makefile b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/Makefile
>index 6044d2adf6384cee48ad6bcd2b562c9024367672..40e74b6509c6337983fcb9d8db9eefa6c6525427 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/Makefile
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/Makefile
>@@ -4,3 +4,6 @@ ifeq ($(CXX),icl)
> else
> 	$(CXX) -msse2 -O3 -fopenmp -static -o psnr psnr.cc ssim.cc psnr_main.cc -Wl,--strip-all
> endif
>+
>+# for MacOS
>+# /usr/local/bin/g++-7 -msse2 -O3 -fopenmp -Bstatic -o psnr psnr.cc ssim.cc psnr_main.cc
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/compare.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/compare.cc
>index ef0beefafee5ed25759f5504e3c1246db0b9bad1..a16613ee2f98cbb7e454d501d5c7607a4712cc6e 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/compare.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/compare.cc
>@@ -29,22 +29,24 @@ int main(int argc, char** argv) {
>   FILE* fin2 = name2 ? fopen(name2, "rb") : NULL;
> 
>   const int kBlockSize = 32768;
>-  uint8 buf1[kBlockSize];
>-  uint8 buf2[kBlockSize];
>-  uint32 hash1 = 5381;
>-  uint32 hash2 = 5381;
>-  uint64 sum_square_err = 0;
>-  uint64 size_min = 0;
>+  uint8_t buf1[kBlockSize];
>+  uint8_t buf2[kBlockSize];
>+  uint32_t hash1 = 5381;
>+  uint32_t hash2 = 5381;
>+  uint64_t sum_square_err = 0;
>+  uint64_t size_min = 0;
>   int amt1 = 0;
>   int amt2 = 0;
>   do {
>     amt1 = static_cast<int>(fread(buf1, 1, kBlockSize, fin1));
>-    if (amt1 > 0)
>+    if (amt1 > 0) {
>       hash1 = libyuv::HashDjb2(buf1, amt1, hash1);
>+    }
>     if (fin2) {
>       amt2 = static_cast<int>(fread(buf2, 1, kBlockSize, fin2));
>-      if (amt2 > 0)
>+      if (amt2 > 0) {
>         hash2 = libyuv::HashDjb2(buf2, amt2, hash2);
>+      }
>       int amt_min = (amt1 < amt2) ? amt1 : amt2;
>       size_min += amt_min;
>       sum_square_err += libyuv::ComputeSumSquareError(buf1, buf2, amt_min);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/cpuid.c b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/cpuid.c
>index 9ff618e0d28e329a0add99da4f6bf212c8d34c37..59c65d60e0fe46d42c2fdb7554b1efc77f03315a 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/cpuid.c
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/cpuid.c
>@@ -69,8 +69,8 @@ int main(int argc, const char* argv[]) {
>     printf("Has NEON %x\n", has_neon);
>   }
>   if (has_mips) {
>-    int has_dspr2 = TestCpuFlag(kCpuHasDSPR2);
>-    printf("Has DSPR2 %x\n", has_dspr2);
>+    int has_msa = TestCpuFlag(kCpuHasMSA);
>+    printf("Has MSA %x\n", has_msa);
>   }
>   if (has_x86) {
>     int has_sse2 = TestCpuFlag(kCpuHasSSE2);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.cc
>index 27f876c0b4aee7e277555cfa3d3e386be62dbf4d..f54015bab8299d5fae883a2f193d1b4c5c724a14 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.cc
>@@ -21,14 +21,14 @@
> extern "C" {
> #endif
> 
>-typedef unsigned int uint32;  // NOLINT
>+typedef unsigned int uint32_t;  // NOLINT
> #ifdef _MSC_VER
>-typedef unsigned __int64 uint64;
>+typedef unsigned __int64 uint64_t;
> #else  // COMPILER_MSVC
> #if defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__)
>-typedef unsigned long uint64;  // NOLINT
>+typedef unsigned long uint64_t;  // NOLINT
> #else   // defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__)
>-typedef unsigned long long uint64;  // NOLINT
>+typedef unsigned long long uint64_t;  // NOLINT
> #endif  // __LP64__
> #endif  // _MSC_VER
> 
>@@ -38,10 +38,10 @@ typedef unsigned long long uint64;  // NOLINT
> #if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
>     !defined(__aarch64__)
> #define HAS_SUMSQUAREERROR_NEON
>-static uint32 SumSquareError_NEON(const uint8* src_a,
>-                                  const uint8* src_b,
>-                                  int count) {
>-  volatile uint32 sse;
>+static uint32_t SumSquareError_NEON(const uint8_t* src_a,
>+                                    const uint8_t* src_b,
>+                                    int count) {
>+  volatile uint32_t sse;
>   asm volatile(
>       "vmov.u8    q7, #0                         \n"
>       "vmov.u8    q9, #0                         \n"
>@@ -73,10 +73,10 @@ static uint32 SumSquareError_NEON(const uint8* src_a,
> }
> #elif !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
> #define HAS_SUMSQUAREERROR_NEON
>-static uint32 SumSquareError_NEON(const uint8* src_a,
>-                                  const uint8* src_b,
>-                                  int count) {
>-  volatile uint32 sse;
>+static uint32_t SumSquareError_NEON(const uint8_t* src_a,
>+                                    const uint8_t* src_b,
>+                                    int count) {
>+  volatile uint32_t sse;
>   asm volatile(
>       "eor        v16.16b, v16.16b, v16.16b      \n"
>       "eor        v18.16b, v18.16b, v18.16b      \n"
>@@ -107,9 +107,9 @@ static uint32 SumSquareError_NEON(const uint8* src_a,
> }
> #elif !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
> #define HAS_SUMSQUAREERROR_SSE2
>-__declspec(naked) static uint32 SumSquareError_SSE2(const uint8* /*src_a*/,
>-                                                    const uint8* /*src_b*/,
>-                                                    int /*count*/) {
>+__declspec(naked) static uint32_t SumSquareError_SSE2(const uint8_t* /*src_a*/,
>+                                                      const uint8_t* /*src_b*/,
>+                                                      int /*count*/) {
>   __asm {
>     mov        eax, [esp + 4]  // src_a
>     mov        edx, [esp + 8]  // src_b
>@@ -146,10 +146,10 @@ __declspec(naked) static uint32 SumSquareError_SSE2(const uint8* /*src_a*/,
> }
> #elif !defined(LIBYUV_DISABLE_X86) && (defined(__x86_64__) || defined(__i386__))
> #define HAS_SUMSQUAREERROR_SSE2
>-static uint32 SumSquareError_SSE2(const uint8* src_a,
>-                                  const uint8* src_b,
>-                                  int count) {
>-  uint32 sse;
>+static uint32_t SumSquareError_SSE2(const uint8_t* src_a,
>+                                    const uint8_t* src_b,
>+                                    int count) {
>+  uint32_t sse;
>   asm volatile(  // NOLINT
>       "pxor      %%xmm0,%%xmm0                   \n"
>       "pxor      %%xmm5,%%xmm5                   \n"
>@@ -228,22 +228,22 @@ static int CpuHasSSE2() {
> }
> #endif  // HAS_SUMSQUAREERROR_SSE2
> 
>-static uint32 SumSquareError_C(const uint8* src_a,
>-                               const uint8* src_b,
>-                               int count) {
>-  uint32 sse = 0u;
>+static uint32_t SumSquareError_C(const uint8_t* src_a,
>+                                 const uint8_t* src_b,
>+                                 int count) {
>+  uint32_t sse = 0u;
>   for (int x = 0; x < count; ++x) {
>     int diff = src_a[x] - src_b[x];
>-    sse += static_cast<uint32>(diff * diff);
>+    sse += static_cast<uint32_t>(diff * diff);
>   }
>   return sse;
> }
> 
>-double ComputeSumSquareError(const uint8* src_a,
>-                             const uint8* src_b,
>+double ComputeSumSquareError(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>                              int count) {
>-  uint32 (*SumSquareError)(const uint8* src_a, const uint8* src_b, int count) =
>-      SumSquareError_C;
>+  uint32_t (*SumSquareError)(const uint8_t* src_a, const uint8_t* src_b,
>+                             int count) = SumSquareError_C;
> #if defined(HAS_SUMSQUAREERROR_NEON)
>   SumSquareError = SumSquareError_NEON;
> #endif
>@@ -253,7 +253,7 @@ double ComputeSumSquareError(const uint8* src_a,
>   }
> #endif
>   const int kBlockSize = 1 << 15;
>-  uint64 sse = 0;
>+  uint64_t sse = 0;
> #ifdef _OPENMP
> #pragma omp parallel for reduction(+ : sse)
> #endif
>@@ -280,8 +280,9 @@ double ComputeSumSquareError(const uint8* src_a,
> // Returns 128.0 (kMaxPSNR) if sse is 0 (perfect match).
> double ComputePSNR(double sse, double size) {
>   const double kMINSSE = 255.0 * 255.0 * size / pow(10.0, kMaxPSNR / 10.0);
>-  if (sse <= kMINSSE)
>+  if (sse <= kMINSSE) {
>     sse = kMINSSE;  // Produces max PSNR of 128
>+  }
>   return 10.0 * log10(255.0 * 255.0 * size / sse);
> }
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.h
>index 0816b976001187b4b19099d6d4b70d33e4934a1e..aac128cbca800695a3001dc5fbf098a200791b6d 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr.h
>@@ -20,7 +20,7 @@ extern "C" {
> #endif
> 
> #if !defined(INT_TYPES_DEFINED) && !defined(UINT8_TYPE_DEFINED)
>-typedef unsigned char uint8;
>+typedef unsigned char uint8_t;
> #define UINT8_TYPE_DEFINED
> #endif
> 
>@@ -31,7 +31,9 @@ static const double kMaxPSNR = 128.0;
> #if !defined(HAVE_JPEG)
> // Computer Sum of Squared Error (SSE).
> // Pass this to ComputePSNR for final result.
>-double ComputeSumSquareError(const uint8* org, const uint8* rec, int size);
>+double ComputeSumSquareError(const uint8_t* src_a,
>+                             const uint8_t* src_b,
>+                             int count);
> #endif
> 
> // PSNR formula: psnr = 10 * log10 (Peak Signal^2 * size / sse)
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr_main.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr_main.cc
>index 4d930be4aedfc090d1c302f35b26c3c25c89ca7e..a930b202ecf094b83fdeb1df22062871cf24604f 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr_main.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/psnr_main.cc
>@@ -90,9 +90,9 @@ bool ExtractResolutionFromFilename(const char* name,
>   fseek(file_org, 0, SEEK_END);
>   size_t total_size = ftell(file_org);
>   fseek(file_org, 0, SEEK_SET);
>-  uint8* const ch_org = new uint8[total_size];
>+  uint8_t* const ch_org = new uint8_t[total_size];
>   memset(ch_org, 0, total_size);
>-  size_t bytes_org = fread(ch_org, sizeof(uint8), total_size, file_org);
>+  size_t bytes_org = fread(ch_org, sizeof(uint8_t), total_size, file_org);
>   fclose(file_org);
>   if (bytes_org == total_size) {
>     if (0 == libyuv::MJPGSize(ch_org, total_size, width_ptr, height_ptr)) {
>@@ -107,13 +107,15 @@ bool ExtractResolutionFromFilename(const char* name,
> 
> // Scale Y channel from 16..240 to 0..255.
> // This can be useful when comparing codecs that are inconsistant about Y
>-uint8 ScaleY(uint8 y) {
>+uint8_t ScaleY(uint8_t y) {
>   int ny = (y - 16) * 256 / 224;
>-  if (ny < 0)
>+  if (ny < 0) {
>     ny = 0;
>-  if (ny > 255)
>+  }
>+  if (ny > 255) {
>     ny = 255;
>-  return static_cast<uint8>(ny);
>+  }
>+  return static_cast<uint8_t>(ny);
> }
> 
> // MSE = Mean Square Error
>@@ -150,8 +152,9 @@ void PrintHelp(const char* program) {
> }
> 
> void ParseOptions(int argc, const char* argv[]) {
>-  if (argc <= 1)
>+  if (argc <= 1) {
>     PrintHelp(argv[0]);
>+  }
>   for (int c = 1; c < argc; ++c) {
>     if (!strcmp(argv[c], "-v")) {
>       verbose = true;
>@@ -237,8 +240,8 @@ void ParseOptions(int argc, const char* argv[]) {
>   }
> }
> 
>-bool UpdateMetrics(uint8* ch_org,
>-                   uint8* ch_rec,
>+bool UpdateMetrics(uint8_t* ch_org,
>+                   uint8_t* ch_rec,
>                    const int y_size,
>                    const int uv_size,
>                    const size_t total_size,
>@@ -247,10 +250,10 @@ bool UpdateMetrics(uint8* ch_org,
>                    metric* distorted_frame,
>                    bool do_psnr) {
>   const int uv_offset = (do_swap_uv ? uv_size : 0);
>-  const uint8* const u_org = ch_org + y_size + uv_offset;
>-  const uint8* const u_rec = ch_rec + y_size;
>-  const uint8* const v_org = ch_org + y_size + (uv_size - uv_offset);
>-  const uint8* const v_rec = ch_rec + y_size + uv_size;
>+  const uint8_t* const u_org = ch_org + y_size + uv_offset;
>+  const uint8_t* const u_rec = ch_rec + y_size;
>+  const uint8_t* const v_org = ch_org + y_size + (uv_size - uv_offset);
>+  const uint8_t* const v_rec = ch_rec + y_size + uv_size;
>   if (do_psnr) {
> #ifdef HAVE_JPEG
>     double y_err = static_cast<double>(
>@@ -301,12 +304,15 @@ bool UpdateMetrics(uint8* ch_org,
>   cur_distortion_psnr->all += distorted_frame->all;
> 
>   bool ismin = false;
>-  if (distorted_frame->y < cur_distortion_psnr->min_y)
>+  if (distorted_frame->y < cur_distortion_psnr->min_y) {
>     cur_distortion_psnr->min_y = distorted_frame->y;
>-  if (distorted_frame->u < cur_distortion_psnr->min_u)
>+  }
>+  if (distorted_frame->u < cur_distortion_psnr->min_u) {
>     cur_distortion_psnr->min_u = distorted_frame->u;
>-  if (distorted_frame->v < cur_distortion_psnr->min_v)
>+  }
>+  if (distorted_frame->v < cur_distortion_psnr->min_v) {
>     cur_distortion_psnr->min_v = distorted_frame->v;
>+  }
>   if (distorted_frame->all < cur_distortion_psnr->min_all) {
>     cur_distortion_psnr->min_all = distorted_frame->all;
>     cur_distortion_psnr->min_frame = number_of_frames;
>@@ -374,8 +380,8 @@ int main(int argc, const char* argv[]) {
> #endif
>   }
> 
>-  uint8* const ch_org = new uint8[total_size];
>-  uint8* const ch_rec = new uint8[total_size];
>+  uint8_t* const ch_org = new uint8_t[total_size];
>+  uint8_t* const ch_rec = new uint8_t[total_size];
>   if (ch_org == NULL || ch_rec == NULL) {
>     fprintf(stderr, "No memory available\n");
>     fclose(file_org);
>@@ -429,14 +435,15 @@ int main(int argc, const char* argv[]) {
> 
>   int number_of_frames;
>   for (number_of_frames = 0;; ++number_of_frames) {
>-    if (num_frames && number_of_frames >= num_frames)
>+    if (num_frames && number_of_frames >= num_frames) {
>       break;
>+    }
> 
>-    size_t bytes_org = fread(ch_org, sizeof(uint8), total_size, file_org);
>+    size_t bytes_org = fread(ch_org, sizeof(uint8_t), total_size, file_org);
>     if (bytes_org < total_size) {
> #ifdef HAVE_JPEG
>       // Try parsing file as a jpeg.
>-      uint8* const ch_jpeg = new uint8[bytes_org];
>+      uint8_t* const ch_jpeg = new uint8_t[bytes_org];
>       memcpy(ch_jpeg, ch_org, bytes_org);
>       memset(ch_org, 0, total_size);
> 
>@@ -456,11 +463,11 @@ int main(int argc, const char* argv[]) {
> 
>     for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
>       size_t bytes_rec =
>-          fread(ch_rec, sizeof(uint8), total_size, file_rec[cur_rec]);
>+          fread(ch_rec, sizeof(uint8_t), total_size, file_rec[cur_rec]);
>       if (bytes_rec < total_size) {
> #ifdef HAVE_JPEG
>         // Try parsing file as a jpeg.
>-        uint8* const ch_jpeg = new uint8[bytes_rec];
>+        uint8_t* const ch_jpeg = new uint8_t[bytes_rec];
>         memcpy(ch_jpeg, ch_rec, bytes_rec);
>         memset(ch_rec, 0, total_size);
> 
>@@ -482,7 +489,7 @@ int main(int argc, const char* argv[]) {
>         printf("%5d", number_of_frames);
>       }
>       if (do_psnr) {
>-        metric distorted_frame;
>+        metric distorted_frame = {};
>         metric* cur_distortion_psnr = &distortion_psnr[cur_rec];
>         bool ismin = UpdateMetrics(ch_org, ch_rec, y_size, uv_size, total_size,
>                                    number_of_frames, cur_distortion_psnr,
>@@ -496,7 +503,7 @@ int main(int argc, const char* argv[]) {
>         }
>       }
>       if (do_ssim) {
>-        metric distorted_frame;
>+        metric distorted_frame = {};
>         metric* cur_distortion_ssim = &distortion_ssim[cur_rec];
>         bool ismin = UpdateMetrics(ch_org, ch_rec, y_size, uv_size, total_size,
>                                    number_of_frames, cur_distortion_ssim,
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.cc
>index 43e725d82104f683a1131e4ac0a7aed2879bfe80..096fbcf0610c81c26e0821fd9c7167885dc37db7 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.cc
>@@ -16,8 +16,8 @@
> extern "C" {
> #endif
> 
>-typedef unsigned int uint32;    // NOLINT
>-typedef unsigned short uint16;  // NOLINT
>+typedef unsigned int uint32_t;    // NOLINT
>+typedef unsigned short uint16_t;  // NOLINT
> 
> #if !defined(LIBYUV_DISABLE_X86) && !defined(__SSE2__) && \
>     (defined(_M_X64) || (defined(_M_IX86_FP) && (_M_IX86_FP >= 2)))
>@@ -50,7 +50,7 @@ static const double kiW[KERNEL + 1 + 1] = {
> 
> #if !defined(LIBYUV_DISABLE_X86) && defined(__SSE2__)
> 
>-#define PWEIGHT(A, B) static_cast<uint16>(K[(A)] * K[(B)])  // weight product
>+#define PWEIGHT(A, B) static_cast<uint16_t>(K[(A)] * K[(B)])  // weight product
> #define MAKE_WEIGHT(L)                                                \
>   {                                                                   \
>     {                                                                 \
>@@ -66,7 +66,7 @@ static const double kiW[KERNEL + 1 + 1] = {
> // values. We can't call _mm_set_epi16() for static compile-time initialization.
> static const struct {
>   union {
>-    uint16 i16_[8];
>+    uint16_t i16_[8];
>     __m128i m_;
>   } values_;
> } W0 = MAKE_WEIGHT(0), W1 = MAKE_WEIGHT(1), W2 = MAKE_WEIGHT(2),
>@@ -88,10 +88,12 @@ static double FinalizeSSIM(double iw,
>   double sxx = xxm * iw - iwx * iwx;
>   double syy = yym * iw - iwy * iwy;
>   // small errors are possible, due to rounding. Clamp to zero.
>-  if (sxx < 0.)
>+  if (sxx < 0.) {
>     sxx = 0.;
>-  if (syy < 0.)
>+  }
>+  if (syy < 0.) {
>     syy = 0.;
>+  }
>   const double sxsy = sqrt(sxx * syy);
>   const double sxy = xym * iw - iwx * iwy;
>   static const double C11 = (0.01 * 0.01) * (255 * 255);
>@@ -109,21 +111,22 @@ static double FinalizeSSIM(double iw,
> // Note: worst case of accumulation is a weight of 33 = 11 + 2 * (7 + 3 + 1)
> // with a diff of 255, squared. The maximum error is thus 0x4388241,
> // which fits into 32 bits integers.
>-double GetSSIM(const uint8* org,
>-               const uint8* rec,
>+double GetSSIM(const uint8_t* org,
>+               const uint8_t* rec,
>                int xo,
>                int yo,
>                int W,
>                int H,
>                int stride) {
>-  uint32 ws = 0, xm = 0, ym = 0, xxm = 0, xym = 0, yym = 0;
>+  uint32_t ws = 0, xm = 0, ym = 0, xxm = 0, xym = 0, yym = 0;
>   org += (yo - KERNEL) * stride;
>   org += (xo - KERNEL);
>   rec += (yo - KERNEL) * stride;
>   rec += (xo - KERNEL);
>   for (int y_ = 0; y_ < KERNEL_SIZE; ++y_, org += stride, rec += stride) {
>-    if (((yo - KERNEL + y_) < 0) || ((yo - KERNEL + y_) >= H))
>+    if (((yo - KERNEL + y_) < 0) || ((yo - KERNEL + y_) >= H)) {
>       continue;
>+    }
>     const int Wy = K[y_];
>     for (int x_ = 0; x_ < KERNEL_SIZE; ++x_) {
>       const int Wxy = Wy * K[x_];
>@@ -142,13 +145,13 @@ double GetSSIM(const uint8* org,
>   return FinalizeSSIM(1. / ws, xm, ym, xxm, xym, yym);
> }
> 
>-double GetSSIMFullKernel(const uint8* org,
>-                         const uint8* rec,
>+double GetSSIMFullKernel(const uint8_t* org,
>+                         const uint8_t* rec,
>                          int xo,
>                          int yo,
>                          int stride,
>                          double area_weight) {
>-  uint32 xm = 0, ym = 0, xxm = 0, xym = 0, yym = 0;
>+  uint32_t xm = 0, ym = 0, xxm = 0, xym = 0, yym = 0;
> 
> #if defined(LIBYUV_DISABLE_X86) || !defined(__SSE2__)
> 
>@@ -262,7 +265,7 @@ double GetSSIMFullKernel(const uint8* org,
> 
> #define ADD_AND_STORE_FOUR_EPI32(M, OUT)                    \
>   do {                                                      \
>-    uint32 tmp[4];                                          \
>+    uint32_t tmp[4];                                        \
>     _mm_storeu_si128(reinterpret_cast<__m128i*>(tmp), (M)); \
>     (OUT) = tmp[3] + tmp[2] + tmp[1] + tmp[0];              \
>   } while (0)
>@@ -292,8 +295,8 @@ static int start_max(int x, int y) {
>   return (x > y) ? x : y;
> }
> 
>-double CalcSSIM(const uint8* org,
>-                const uint8* rec,
>+double CalcSSIM(const uint8_t* org,
>+                const uint8_t* rec,
>                 const int image_width,
>                 const int image_height) {
>   double SSIM = 0.;
>@@ -328,8 +331,8 @@ double CalcSSIM(const uint8* org,
>       // NOTE: we could use similar method for the left-most pixels too.
>       const int kScratchWidth = 8;
>       const int kScratchStride = kScratchWidth + KERNEL + 1;
>-      uint8 scratch_org[KERNEL_SIZE * kScratchStride] = {0};
>-      uint8 scratch_rec[KERNEL_SIZE * kScratchStride] = {0};
>+      uint8_t scratch_org[KERNEL_SIZE * kScratchStride] = {0};
>+      uint8_t scratch_rec[KERNEL_SIZE * kScratchStride] = {0};
> 
>       for (int k = 0; k < KERNEL_SIZE; ++k) {
>         const int offset =
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.h b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.h
>index 4647f45de14ea3192576e04c24b92ea1d286c813..a855f1d12331d599c896dabda59e9e8bd3759977 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.h
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/ssim.h
>@@ -20,12 +20,12 @@ extern "C" {
> #endif
> 
> #if !defined(INT_TYPES_DEFINED) && !defined(UINT8_TYPE_DEFINED)
>-typedef unsigned char uint8;
>+typedef unsigned char uint8_t;
> #define UINT8_TYPE_DEFINED
> #endif
> 
>-double CalcSSIM(const uint8* org,
>-                const uint8* rec,
>+double CalcSSIM(const uint8_t* org,
>+                const uint8_t* rec,
>                 const int image_width,
>                 const int image_height);
> 
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/yuvconvert.cc b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/yuvconvert.cc
>index bc01d9ff503e74886eff48bd8b88c0c4a0ba7e19..27cdfe9e375631ec3bec41ebdb7b096922c2764b 100644
>--- a/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/yuvconvert.cc
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/libyuv/util/yuvconvert.cc
>@@ -37,7 +37,7 @@ int num_skip_org = 0;   // Number of frames to skip in original.
> int num_frames = 0;     // Number of frames to convert.
> int filter = 1;         // Bilinear filter for scaling.
> 
>-static __inline uint32 Abs(int32 v) {
>+static __inline uint32_t Abs(int32_t v) {
>   return v >= 0 ? v : -v;
> }
> 
>@@ -79,8 +79,9 @@ void PrintHelp(const char* program) {
> }
> 
> void ParseOptions(int argc, const char* argv[]) {
>-  if (argc <= 1)
>+  if (argc <= 1) {
>     PrintHelp(argv[0]);
>+  }
>   for (int c = 1; c < argc; ++c) {
>     if (!strcmp(argv[c], "-v")) {
>       verbose = true;
>@@ -158,11 +159,11 @@ void ParseOptions(int argc, const char* argv[]) {
> static const int kTileX = 32;
> static const int kTileY = 32;
> 
>-static int TileARGBScale(const uint8* src_argb,
>+static int TileARGBScale(const uint8_t* src_argb,
>                          int src_stride_argb,
>                          int src_width,
>                          int src_height,
>-                         uint8* dst_argb,
>+                         uint8_t* dst_argb,
>                          int dst_stride_argb,
>                          int dst_width,
>                          int dst_height,
>@@ -242,9 +243,9 @@ int main(int argc, const char* argv[]) {
>   fseek(file_org, num_skip_org * total_size, SEEK_SET);
> #endif
> 
>-  uint8* const ch_org = new uint8[org_size];
>-  uint8* const ch_dst = new uint8[dst_size];
>-  uint8* const ch_rec = new uint8[total_size];
>+  uint8_t* const ch_org = new uint8_t[org_size];
>+  uint8_t* const ch_dst = new uint8_t[dst_size];
>+  uint8_t* const ch_rec = new uint8_t[total_size];
>   if (ch_org == NULL || ch_rec == NULL) {
>     fprintf(stderr, "No memory available\n");
>     fclose(file_org);
>@@ -265,14 +266,16 @@ int main(int argc, const char* argv[]) {
> 
>   int number_of_frames;
>   for (number_of_frames = 0;; ++number_of_frames) {
>-    if (num_frames && number_of_frames >= num_frames)
>+    if (num_frames && number_of_frames >= num_frames) {
>       break;
>+    }
> 
>     // Load original YUV or ARGB frame.
>     size_t bytes_org =
>-        fread(ch_org, sizeof(uint8), static_cast<size_t>(org_size), file_org);
>-    if (bytes_org < static_cast<size_t>(org_size))
>+        fread(ch_org, sizeof(uint8_t), static_cast<size_t>(org_size), file_org);
>+    if (bytes_org < static_cast<size_t>(org_size)) {
>       break;
>+    }
> 
>     // TODO(fbarchard): Attenuate doesnt need to know dimensions.
>     // ARGB attenuate frame
>@@ -329,16 +332,18 @@ int main(int argc, const char* argv[]) {
>       // Output YUV or ARGB frame.
>       if (rec_is_yuv) {
>         size_t bytes_rec =
>-            fwrite(ch_rec, sizeof(uint8), static_cast<size_t>(total_size),
>+            fwrite(ch_rec, sizeof(uint8_t), static_cast<size_t>(total_size),
>                    file_rec[cur_rec]);
>-        if (bytes_rec < static_cast<size_t>(total_size))
>+        if (bytes_rec < static_cast<size_t>(total_size)) {
>           break;
>+        }
>       } else {
>         size_t bytes_rec =
>-            fwrite(ch_dst, sizeof(uint8), static_cast<size_t>(dst_size),
>+            fwrite(ch_dst, sizeof(uint8_t), static_cast<size_t>(dst_size),
>                    file_rec[cur_rec]);
>-        if (bytes_rec < static_cast<size_t>(dst_size))
>+        if (bytes_rec < static_cast<size_t>(dst_size)) {
>           break;
>+        }
>       }
>       if (verbose) {
>         printf("%5d", number_of_frames);
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/BUILD.gn b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/BUILD.gn
>new file mode 100644
>index 0000000000000000000000000000000000000000..c669179a5f0e21112ae398827a88ced309fd3dfe
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/BUILD.gn
>@@ -0,0 +1,38 @@
>+# Copyright 2018 The Chromium Authors. All rights reserved.
>+# Use of this source code is governed by a BSD-style license that can be
>+# found in the LICENSE file.
>+
>+import("//testing/test.gni")
>+
>+group("rnnoise") {
>+  deps = [
>+    ":kiss_fft",
>+    ":rnn_vad",
>+  ]
>+}
>+
>+source_set("kiss_fft") {
>+  sources = [
>+    "src/kiss_fft.cc",
>+    "src/kiss_fft.h",
>+  ]
>+}
>+
>+source_set("rnn_vad") {
>+  sources = [
>+    "src/rnn_activations.h",
>+    "src/rnn_vad_weights.cc",
>+    "src/rnn_vad_weights.h",
>+  ]
>+}
>+
>+test("kiss_fft_unittest") {
>+  sources = [
>+    "src/kiss_fft_unittest.cc",
>+  ]
>+  deps = [
>+    ":kiss_fft",
>+    "//testing/gtest",
>+    "//testing/gtest:gtest_main",
>+  ]
>+}
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/COPYING b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/COPYING
>new file mode 100644
>index 0000000000000000000000000000000000000000..01ea4b1a2ac025fd9daa73a031b06c01fc57ed81
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/COPYING
>@@ -0,0 +1,31 @@
>+Copyright (c) 2017, Mozilla
>+Copyright (c) 2007-2017, Jean-Marc Valin
>+Copyright (c) 2005-2017, Xiph.Org Foundation
>+Copyright (c) 2003-2004, Mark Borgerding
>+
>+Redistribution and use in source and binary forms, with or without
>+modification, are permitted provided that the following conditions
>+are met:
>+
>+- Redistributions of source code must retain the above copyright
>+notice, this list of conditions and the following disclaimer.
>+
>+- Redistributions in binary form must reproduce the above copyright
>+notice, this list of conditions and the following disclaimer in the
>+documentation and/or other materials provided with the distribution.
>+
>+- Neither the name of the Xiph.Org Foundation nor the names of its
>+contributors may be used to endorse or promote products derived from
>+this software without specific prior written permission.
>+
>+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION
>+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/DEPS b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/DEPS
>new file mode 100644
>index 0000000000000000000000000000000000000000..fca61fcf64b71f2176b3f81050278405df2a3c6a
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/DEPS
>@@ -0,0 +1,3 @@
>+include_rules = [
>+  "+testing/gtest/include/gtest",
>+]
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/OWNERS b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/OWNERS
>new file mode 100644
>index 0000000000000000000000000000000000000000..b3f35ec172b31c34a7378ebda50b2226c81520b2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/OWNERS
>@@ -0,0 +1,2 @@
>+alessiob@chromium.org
>+aleloi@chromium.org
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/README.chromium b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/README.chromium
>new file mode 100644
>index 0000000000000000000000000000000000000000..8efe059ca6b2de964c94f19d661456e45af8b029
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/README.chromium
>@@ -0,0 +1,28 @@
>+Name: Recurrent neural network for audio noise reduction
>+Short Name: rnnoise
>+URL: https://github.com/xiph/rnnoise
>+Version: 91ef401
>+Date: Oct 10, 2017
>+Revision:
>+License: BSD 3-Clause
>+License File: COPYING
>+Security Critical: no
>+License Android Compatible:
>+
>+Description:
>+RNNoise is a noise suppression library based on a recurrent neural network.
>+The library is used for speech processing in WebRTC.
>+
>+Local Modifications:
>+* Only retaining COPYING and from src/ the following files:
>+ - kiss_fft.c, kiss_fft.h
>+ - rnn.c
>+ - rnn_data.c
>+ - tansig_table.h
>+* KissFFT: non-floating point parts removed, code clean, from C to C++,
>+  class wrapper added
>+* BUILD targets and KissFFT unit tests added
>+* rnn_vad_weights.h: output layer sizes + weights scaling factor
>+* removing unwanted extern from constants in rnn_vad_weights.h and using
>+  constants to declare array sizes
>+* Add braces around arrays in unit test.
>\ No newline at end of file
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.cc b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..27b4900b918b9d324d98f3c89f8204a236997873
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.cc
>@@ -0,0 +1,443 @@
>+/*Copyright (c) 2003-2004, Mark Borgerding
>+  Lots of modifications by Jean-Marc Valin
>+  Copyright (c) 2005-2007, Xiph.Org Foundation
>+  Copyright (c) 2008,      Xiph.Org Foundation, CSIRO
>+  Copyright (c) 2018,      The WebRTC project authors
>+
>+  All rights reserved.
>+
>+  Redistribution and use in source and binary forms, with or without
>+   modification, are permitted provided that the following conditions are met:
>+
>+    * Redistributions of source code must retain the above copyright notice,
>+       this list of conditions and the following disclaimer.
>+    * Redistributions in binary form must reproduce the above copyright notice,
>+       this list of conditions and the following disclaimer in the
>+       documentation and/or other materials provided with the distribution.
>+
>+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
>+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
>+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
>+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
>+  POSSIBILITY OF SUCH DAMAGE.*/
>+
>+#include "third_party/rnnoise/src/kiss_fft.h"
>+
>+#include <cassert>
>+#include <cmath>
>+#include <utility>
>+
>+namespace rnnoise {
>+namespace {
>+
>+void kf_bfly2(std::complex<float>* Fout, int m, int N) {
>+  if (m == 1) {
>+    for (int i = 0; i < N; i++) {
>+      const std::complex<float> t = Fout[1];
>+      Fout[1] = Fout[0] - t;
>+      Fout[0] += t;
>+      Fout += 2;
>+    }
>+  } else {
>+    constexpr float tw = 0.7071067812f;
>+    // We know that m==4 here because the radix-2 is just after a radix-4.
>+    assert(m == 4);
>+    for (int i = 0; i < N; i++) {
>+      std::complex<float>* Fout2 = Fout + 4;
>+      std::complex<float> t = Fout2[0];
>+
>+      *Fout2 = Fout[0] - t;
>+      Fout[0] += t;
>+
>+      t.real((Fout2[1].real() + Fout2[1].imag()) * tw);
>+      t.imag((Fout2[1].imag() - Fout2[1].real()) * tw);
>+      Fout2[1] = Fout[1] - t;
>+      Fout[1] += t;
>+
>+      t.real(Fout2[2].imag());
>+      t.imag(-Fout2[2].real());
>+      Fout2[2] = Fout[2] - t;
>+      Fout[2] += t;
>+
>+      t.real((Fout2[3].imag() - Fout2[3].real()) * tw);
>+      t.imag(-(Fout2[3].imag() + Fout2[3].real()) * tw);
>+      Fout2[3] = Fout[3] - t;
>+      Fout[3] += t;
>+      Fout += 8;
>+    }
>+  }
>+}
>+
>+void kf_bfly4(std::complex<float>* Fout,
>+              const size_t fstride,
>+              const KissFft::KissFftState* st,
>+              int m,
>+              int N,
>+              int mm) {
>+  assert(Fout);
>+  assert(st);
>+  if (m == 1) {
>+    // Degenerate case where all the twiddles are 1.
>+    for (int i = 0; i < N; i++) {
>+      std::complex<float> scratch0 = Fout[0] - Fout[2];
>+      Fout[0] += Fout[2];
>+      std::complex<float> scratch1 = Fout[1] + Fout[3];
>+      Fout[2] = Fout[0] - scratch1;
>+      Fout[0] += scratch1;
>+      scratch1 = Fout[1] - Fout[3];
>+
>+      Fout[1].real(scratch0.real() + scratch1.imag());
>+      Fout[1].imag(scratch0.imag() - scratch1.real());
>+      Fout[3].real(scratch0.real() - scratch1.imag());
>+      Fout[3].imag(scratch0.imag() + scratch1.real());
>+      Fout += 4;
>+    }
>+  } else {
>+    std::complex<float> scratch[6];
>+    const int m2 = 2 * m;
>+    const int m3 = 3 * m;
>+    std::complex<float>* Fout_beg = Fout;
>+    for (int i = 0; i < N; i++) {
>+      Fout = Fout_beg + i * mm;
>+      const std::complex<float>* tw1;
>+      const std::complex<float>* tw2;
>+      const std::complex<float>* tw3;
>+      tw3 = tw2 = tw1 = &st->twiddles[0];
>+      assert(m % 4 == 0);  // |m| is guaranteed to be a multiple of 4.
>+      for (int j = 0; j < m; j++) {
>+        scratch[0] = Fout[m] * *tw1;
>+        scratch[1] = Fout[m2] * *tw2;
>+        scratch[2] = Fout[m3] * *tw3;
>+
>+        scratch[5] = Fout[0] - scratch[1];
>+        Fout[0] += scratch[1];
>+        scratch[3] = scratch[0] + scratch[2];
>+        scratch[4] = scratch[0] - scratch[2];
>+        Fout[m2] = Fout[0] - scratch[3];
>+
>+        tw1 += fstride;
>+        tw2 += fstride * 2;
>+        tw3 += fstride * 3;
>+        Fout[0] += scratch[3];
>+
>+        Fout[m].real(scratch[5].real() + scratch[4].imag());
>+        Fout[m].imag(scratch[5].imag() - scratch[4].real());
>+        Fout[m3].real(scratch[5].real() - scratch[4].imag());
>+        Fout[m3].imag(scratch[5].imag() + scratch[4].real());
>+        ++Fout;
>+      }
>+    }
>+  }
>+}
>+
>+void kf_bfly3(std::complex<float>* Fout,
>+              const size_t fstride,
>+              const KissFft::KissFftState* st,
>+              int m,
>+              int N,
>+              int mm) {
>+  assert(Fout);
>+  assert(st);
>+  const size_t m2 = 2 * m;
>+  const std::complex<float>*tw1, *tw2;
>+  std::complex<float> scratch[5];
>+  std::complex<float> epi3;
>+
>+  std::complex<float>* Fout_beg = Fout;
>+  epi3 = st->twiddles[fstride * m];
>+  for (int i = 0; i < N; i++) {
>+    Fout = Fout_beg + i * mm;
>+    tw1 = tw2 = &st->twiddles[0];
>+    size_t k = m;
>+    do {
>+      scratch[1] = Fout[m] * *tw1;
>+      scratch[2] = Fout[m2] * *tw2;
>+
>+      scratch[3] = scratch[1] + scratch[2];
>+      scratch[0] = scratch[1] - scratch[2];
>+      tw1 += fstride;
>+      tw2 += fstride * 2;
>+
>+      Fout[m] = Fout[0] - 0.5f * scratch[3];
>+
>+      scratch[0] *= epi3.imag();
>+
>+      Fout[0] += scratch[3];
>+
>+      Fout[m2].real(Fout[m].real() + scratch[0].imag());
>+      Fout[m2].imag(Fout[m].imag() - scratch[0].real());
>+
>+      Fout[m].real(Fout[m].real() - scratch[0].imag());
>+      Fout[m].imag(Fout[m].imag() + scratch[0].real());
>+
>+      ++Fout;
>+    } while (--k);
>+  }
>+}
>+
>+void kf_bfly5(std::complex<float>* Fout,
>+              const size_t fstride,
>+              const KissFft::KissFftState* st,
>+              int m,
>+              int N,
>+              int mm) {
>+  assert(Fout);
>+  assert(st);
>+  std::complex<float> scratch[13];
>+  const std::complex<float>* tw;
>+  std::complex<float> ya, yb;
>+  std::complex<float>* const Fout_beg = Fout;
>+
>+  ya = st->twiddles[fstride * m];
>+  yb = st->twiddles[fstride * 2 * m];
>+  tw = &st->twiddles[0];
>+
>+  for (int i = 0; i < N; i++) {
>+    Fout = Fout_beg + i * mm;
>+    std::complex<float>* Fout0 = Fout;
>+    std::complex<float>* Fout1 = Fout0 + m;
>+    std::complex<float>* Fout2 = Fout0 + 2 * m;
>+    std::complex<float>* Fout3 = Fout0 + 3 * m;
>+    std::complex<float>* Fout4 = Fout0 + 4 * m;
>+
>+    // For non-custom modes, m is guaranteed to be a multiple of 4.
>+    for (int u = 0; u < m; ++u) {
>+      scratch[0] = *Fout0;
>+
>+      scratch[1] = *Fout1 * tw[u * fstride];
>+      scratch[2] = *Fout2 * tw[2 * u * fstride];
>+      scratch[3] = *Fout3 * tw[3 * u * fstride];
>+      scratch[4] = *Fout4 * tw[4 * u * fstride];
>+
>+      scratch[7] = scratch[1] + scratch[4];
>+      scratch[10] = scratch[1] - scratch[4];
>+      scratch[8] = scratch[2] + scratch[3];
>+      scratch[9] = scratch[2] - scratch[3];
>+
>+      Fout0->real(Fout0->real() + scratch[7].real() + scratch[8].real());
>+      Fout0->imag(Fout0->imag() + scratch[7].imag() + scratch[8].imag());
>+
>+      scratch[5].real(scratch[0].real() + scratch[7].real() * ya.real() +
>+                      scratch[8].real() * yb.real());
>+      scratch[5].imag(scratch[0].imag() + scratch[7].imag() * ya.real() +
>+                      scratch[8].imag() * yb.real());
>+
>+      scratch[6].real(scratch[10].imag() * ya.imag() +
>+                      scratch[9].imag() * yb.imag());
>+      scratch[6].imag(
>+          -(scratch[10].real() * ya.imag() + scratch[9].real() * yb.imag()));
>+
>+      *Fout1 = scratch[5] - scratch[6];
>+      *Fout4 = scratch[5] + scratch[6];
>+
>+      scratch[11].real(scratch[0].real() + scratch[7].real() * yb.real() +
>+                       scratch[8].real() * ya.real());
>+      scratch[11].imag(scratch[0].imag() + scratch[7].imag() * yb.real() +
>+                       scratch[8].imag() * ya.real());
>+      scratch[12].real(scratch[9].imag() * ya.imag() -
>+                       scratch[10].imag() * yb.imag());
>+      scratch[12].imag(scratch[10].real() * yb.imag() -
>+                       scratch[9].real() * ya.imag());
>+
>+      *Fout2 = scratch[11] + scratch[12];
>+      *Fout3 = scratch[11] - scratch[12];
>+
>+      ++Fout0;
>+      ++Fout1;
>+      ++Fout2;
>+      ++Fout3;
>+      ++Fout4;
>+    }
>+  }
>+}
>+
>+void compute_bitrev_table(int base_index,
>+                          const size_t stride,
>+                          const int16_t* factors,
>+                          const KissFft::KissFftState* st,
>+                          const int16_t* bitrev_table_last,
>+                          int16_t* bitrev_table) {
>+  const int p = *factors++;  // The radix.
>+  const int m = *factors++;  // Stage's fft length/p.
>+  if (m == 1) {
>+    for (int j = 0; j < p; j++) {
>+      assert(bitrev_table <= bitrev_table_last);
>+      *bitrev_table = base_index + j;
>+      bitrev_table += stride;
>+    }
>+  } else {
>+    for (int j = 0; j < p; j++) {
>+      compute_bitrev_table(base_index, stride * p, factors, st,
>+                           bitrev_table_last, bitrev_table);
>+      bitrev_table += stride;
>+      base_index += m;
>+    }
>+  }
>+}
>+
>+// Populates |facbuf| with p1, m1, p2, m2, ... where p[i] * m[i] = m[i-1] and
>+// m0 = n.
>+bool kf_factor(int n, int16_t* facbuf) {
>+  assert(facbuf);
>+  int p = 4;
>+  int stages = 0;
>+  int nbak = n;
>+
>+  // Factor out powers of 4, powers of 2, then any remaining primes.
>+  do {
>+    while (n % p) {
>+      switch (p) {
>+        case 4:
>+          p = 2;
>+          break;
>+        case 2:
>+          p = 3;
>+          break;
>+        default:
>+          p += 2;
>+          break;
>+      }
>+      if (p > 32000 || p * p > n)
>+        p = n;  // No more factors, skip to end.
>+    }
>+    n /= p;
>+    if (p > 5)
>+      return false;
>+    facbuf[2 * stages] = p;
>+    if (p == 2 && stages > 1) {
>+      facbuf[2 * stages] = 4;
>+      facbuf[2] = 2;
>+    }
>+    stages++;
>+  } while (n > 1);
>+  n = nbak;
>+  // Reverse the order to get the radix 4 at the end, so we can use the
>+  // fast degenerate case. It turns out that reversing the order also
>+  // improves the noise behavior.
>+  for (int i = 0; i < stages / 2; i++)
>+    std::swap(facbuf[2 * i], facbuf[2 * (stages - i - 1)]);
>+  for (int i = 0; i < stages; i++) {
>+    n /= facbuf[2 * i];
>+    facbuf[2 * i + 1] = n;
>+  }
>+  return true;
>+}
>+
>+void compute_twiddles(const int nfft, std::complex<float>* twiddles) {
>+  constexpr double pi = 3.14159265358979323846264338327;
>+  assert(twiddles);
>+  for (int i = 0; i < nfft; ++i) {
>+    const double phase = (-2 * pi / nfft) * i;
>+    twiddles[i].real(std::cos(phase));
>+    twiddles[i].imag(std::sin(phase));
>+  }
>+}
>+
>+void fft_impl(const KissFft::KissFftState* st, std::complex<float>* fout) {
>+  assert(st);
>+  assert(fout);
>+  int m2, m;
>+  int p;
>+  int L;
>+  int fstride[KissFft::kMaxFactors];
>+
>+  fstride[0] = 1;
>+  L = 0;
>+  do {
>+    p = st->factors[2 * L];
>+    m = st->factors[2 * L + 1];
>+    assert(static_cast<size_t>(L + 1) < KissFft::kMaxFactors);
>+    fstride[L + 1] = fstride[L] * p;
>+    L++;
>+  } while (m != 1);
>+  m = st->factors[2 * L - 1];
>+  for (int i = L - 1; i >= 0; i--) {
>+    if (i != 0)
>+      m2 = st->factors[2 * i - 1];
>+    else
>+      m2 = 1;
>+    switch (st->factors[2 * i]) {
>+      case 2:
>+        kf_bfly2(fout, m, fstride[i]);
>+        break;
>+      case 4:
>+        kf_bfly4(fout, fstride[i], st, m, fstride[i], m2);
>+        break;
>+      case 3:
>+        kf_bfly3(fout, fstride[i], st, m, fstride[i], m2);
>+        break;
>+      case 5:
>+        kf_bfly5(fout, fstride[i], st, m, fstride[i], m2);
>+        break;
>+      default:
>+        assert(0);
>+        break;
>+    }
>+    m = m2;
>+  }
>+}
>+
>+}  // namespace
>+
>+KissFft::KissFftState::KissFftState(int num_fft_points)
>+    : nfft(num_fft_points), scale(1.f / nfft) {
>+  // Factorize |nfft|.
>+  // TODO(alessiob): Handle kf_factor fails (invalid nfft).
>+  if (!kf_factor(nfft, factors.data()))
>+    assert(0);
>+  // Twiddles.
>+  twiddles.resize(nfft);
>+  compute_twiddles(nfft, twiddles.data());
>+  // Bit-reverse table.
>+  bitrev.resize(nfft);
>+  compute_bitrev_table(0, 1, factors.data(), this, &bitrev.back(),
>+                       bitrev.data());
>+}
>+
>+KissFft::KissFftState::~KissFftState() = default;
>+
>+KissFft::KissFft(const int nfft) : state_(nfft) {}
>+
>+KissFft::~KissFft() = default;
>+
>+void KissFft::ForwardFft(const size_t in_size,
>+                         const std::complex<float>* in,
>+                         const size_t out_size,
>+                         std::complex<float>* out) {
>+  assert(in);
>+  assert(out);
>+  assert(in != out);  // In-place FFT not supported.
>+  assert(state_.nfft == static_cast<int>(in_size));
>+  assert(state_.nfft == static_cast<int>(out_size));
>+  // Bit-reverse the input.
>+  for (int i = 0; i < state_.nfft; i++)
>+    out[state_.bitrev[i]] = state_.scale * in[i];
>+  fft_impl(&state_, out);
>+}
>+
>+void KissFft::ReverseFft(const size_t in_size,
>+                         const std::complex<float>* in,
>+                         const size_t out_size,
>+                         std::complex<float>* out) {
>+  assert(in);
>+  assert(out);
>+  assert(in != out);  // In-place IFFT not supported.
>+  assert(state_.nfft == static_cast<int>(in_size));
>+  assert(state_.nfft == static_cast<int>(out_size));
>+  // Bit-reverse the input.
>+  for (int i = 0; i < state_.nfft; i++)
>+    out[state_.bitrev[i]] = in[i];
>+  for (int i = 0; i < state_.nfft; i++)
>+    out[i].imag(-out[i].imag());
>+  fft_impl(&state_, out);
>+  for (int i = 0; i < state_.nfft; i++)
>+    out[i].imag(-out[i].imag());
>+}
>+
>+}  // namespace rnnoise
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.h b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..b90f77d1ae3c420075b99b314030be3cb586da7d
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft.h
>@@ -0,0 +1,78 @@
>+/*Copyright (c) 2003-2004, Mark Borgerding
>+  Lots of modifications by Jean-Marc Valin
>+  Copyright (c) 2005-2007, Xiph.Org Foundation
>+  Copyright (c) 2008,      Xiph.Org Foundation, CSIRO
>+  Copyright (c) 2018,      The WebRTC project authors
>+
>+  All rights reserved.
>+
>+  Redistribution and use in source and binary forms, with or without
>+   modification, are permitted provided that the following conditions are met:
>+
>+    * Redistributions of source code must retain the above copyright notice,
>+       this list of conditions and the following disclaimer.
>+    * Redistributions in binary form must reproduce the above copyright notice,
>+       this list of conditions and the following disclaimer in the
>+       documentation and/or other materials provided with the distribution.
>+
>+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
>+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
>+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
>+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
>+  POSSIBILITY OF SUCH DAMAGE.*/
>+
>+#ifndef THIRD_PARTY_RNNOISE_SRC_KISS_FFT_H_
>+#define THIRD_PARTY_RNNOISE_SRC_KISS_FFT_H_
>+
>+#include <array>
>+#include <complex>
>+#include <vector>
>+
>+namespace rnnoise {
>+
>+class KissFft {
>+ public:
>+  // Example: an FFT of length 128 has 4 factors as far as kissfft is concerned
>+  // (namely, 4*4*4*2).
>+  static const size_t kMaxFactors = 8;
>+
>+  class KissFftState {
>+   public:
>+    KissFftState(int num_fft_points);
>+    KissFftState(const KissFftState&) = delete;
>+    KissFftState& operator=(const KissFftState&) = delete;
>+    ~KissFftState();
>+
>+    const int nfft;
>+    const float scale;
>+    std::array<int16_t, 2 * kMaxFactors> factors;
>+    std::vector<int16_t> bitrev;
>+    std::vector<std::complex<float>> twiddles;
>+  };
>+
>+  explicit KissFft(const int nfft);
>+  KissFft(const KissFft&) = delete;
>+  KissFft& operator=(const KissFft&) = delete;
>+  ~KissFft();
>+  void ForwardFft(const size_t in_size,
>+                  const std::complex<float>* in,
>+                  const size_t out_size,
>+                  std::complex<float>* out);
>+  void ReverseFft(const size_t in_size,
>+                  const std::complex<float>* in,
>+                  const size_t out_size,
>+                  std::complex<float>* out);
>+
>+ private:
>+  KissFftState state_;
>+};
>+
>+}  // namespace rnnoise
>+
>+#endif  // THIRD_PARTY_RNNOISE_SRC_KISS_FFT_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft_unittest.cc b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft_unittest.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..31324453886f4a00f7a1eb92f6fb4ef90e49404c
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/kiss_fft_unittest.cc
>@@ -0,0 +1,145 @@
>+// Copyright 2018 The Chromium Authors. All rights reserved.
>+// Use of this source code is governed by a BSD-style license that can be
>+// found in the LICENSE file.
>+
>+#include <array>
>+#include <cmath>
>+#include <limits>
>+#include <tuple>
>+#include <vector>
>+
>+#include "testing/gtest/include/gtest/gtest.h"
>+#include "third_party/rnnoise/src/kiss_fft.h"
>+
>+namespace rnnoise {
>+namespace test {
>+namespace {
>+
>+const double kPi = std::acos(-1.0);
>+
>+void FillFftInputBuffer(const size_t num_samples,
>+                        const float* samples,
>+                        std::complex<float>* input_buf) {
>+  for (size_t i = 0; i < num_samples; ++i)
>+    input_buf[i].real(samples[i]);
>+}
>+
>+void CheckFftResult(const size_t num_fft_points,
>+                    const float* expected_real,
>+                    const float* expected_imag,
>+                    const std::complex<float>* computed,
>+                    const float tolerance) {
>+  for (size_t i = 0; i < num_fft_points; ++i) {
>+    SCOPED_TRACE(i);
>+    EXPECT_NEAR(expected_real[i], computed[i].real(), tolerance);
>+    EXPECT_NEAR(expected_imag[i], computed[i].imag(), tolerance);
>+  }
>+}
>+
>+}  // namespace
>+
>+class RnnVadTest
>+    : public testing::Test,
>+      public ::testing::WithParamInterface<std::tuple<size_t, float, float>> {};
>+
>+// Check that IFFT(FFT(x)) == x (tolerating round-off errors).
>+TEST_P(RnnVadTest, KissFftForwardReverseCheckIdentity) {
>+  const auto params = GetParam();
>+  const float amplitude = std::get<0>(params);
>+  const size_t num_fft = std::get<1>(params);
>+  const float tolerance = std::get<2>(params);
>+  std::vector<float> samples;
>+  std::vector<float> zeros;
>+  samples.resize(num_fft);
>+  zeros.resize(num_fft);
>+  for (size_t i = 0; i < num_fft; ++i) {
>+    samples[i] = amplitude * std::sin(2.f * kPi * 10 * i / num_fft);
>+    zeros[i] = 0.f;
>+  }
>+
>+  KissFft fft(num_fft);
>+  std::vector<std::complex<float>> fft_buf_1;
>+  fft_buf_1.resize(num_fft);
>+  std::vector<std::complex<float>> fft_buf_2;
>+  fft_buf_2.resize(num_fft);
>+
>+  FillFftInputBuffer(samples.size(), samples.data(), fft_buf_1.data());
>+  {
>+    // TODO(alessiob): Underflow with non power of 2 frame sizes.
>+    // FloatingPointExceptionObserver fpe_observer;
>+
>+    fft.ForwardFft(fft_buf_1.size(), fft_buf_1.data(), fft_buf_2.size(),
>+                   fft_buf_2.data());
>+    fft.ReverseFft(fft_buf_2.size(), fft_buf_2.data(), fft_buf_1.size(),
>+                   fft_buf_1.data());
>+  }
>+  CheckFftResult(samples.size(), samples.data(), zeros.data(), fft_buf_1.data(),
>+                 tolerance);
>+}
>+
>+INSTANTIATE_TEST_CASE_P(FftPoints,
>+                        RnnVadTest,
>+                        ::testing::Values(std::make_tuple(1.f, 240, 3e-7f),
>+                                          std::make_tuple(1.f, 256, 3e-7f),
>+                                          std::make_tuple(1.f, 480, 3e-7f),
>+                                          std::make_tuple(1.f, 512, 3e-7f),
>+                                          std::make_tuple(1.f, 960, 4e-7f),
>+                                          std::make_tuple(1.f, 1024, 3e-7f),
>+                                          std::make_tuple(30.f, 240, 5e-6f),
>+                                          std::make_tuple(30.f, 256, 5e-6f),
>+                                          std::make_tuple(30.f, 480, 6e-6f),
>+                                          std::make_tuple(30.f, 512, 6e-6f),
>+                                          std::make_tuple(30.f, 960, 8e-6f),
>+                                          std::make_tuple(30.f, 1024, 6e-6f)));
>+
>+TEST(RnnVadTest, KissFftBitExactness) {
>+  constexpr std::array<float, 32> samples = {
>+      {0.3524301946163177490234375f,  0.891803801059722900390625f,
>+       0.07706542313098907470703125f, 0.699530780315399169921875f,
>+       0.3789891898632049560546875f,  0.5438187122344970703125f,
>+       0.332781612873077392578125f,   0.449340641498565673828125f,
>+       0.105229437351226806640625f,   0.722373783588409423828125f,
>+       0.13155306875705718994140625f, 0.340857982635498046875f,
>+       0.970204889774322509765625f,   0.53061950206756591796875f,
>+       0.91507828235626220703125f,    0.830274522304534912109375f,
>+       0.74468600749969482421875f,    0.24320767819881439208984375f,
>+       0.743998110294342041015625f,   0.17574800550937652587890625f,
>+       0.1834825575351715087890625f,  0.63317775726318359375f,
>+       0.11414264142513275146484375f, 0.1612723171710968017578125f,
>+       0.80316197872161865234375f,    0.4979794919490814208984375f,
>+       0.554282128810882568359375f,   0.67189347743988037109375f,
>+       0.06660757958889007568359375f, 0.89568817615509033203125f,
>+       0.29327380657196044921875f,    0.3472573757171630859375f}};
>+  constexpr std::array<float, 17> expected_real = {
>+      {0.4813065826892852783203125f, -0.0246877372264862060546875f,
>+       0.04095232486724853515625f, -0.0401695556938648223876953125f,
>+       0.00500857271254062652587890625f, 0.0160773508250713348388671875f,
>+       -0.011385642923414707183837890625f, -0.008461721241474151611328125f,
>+       0.01383177936077117919921875f, 0.0117270611226558685302734375f,
>+       -0.0164460353553295135498046875f, 0.0585579685866832733154296875f,
>+       0.02038039825856685638427734375f, -0.0209107734262943267822265625f,
>+       0.01046995259821414947509765625f, -0.09019653499126434326171875f,
>+       -0.0583711564540863037109375f}};
>+  constexpr std::array<float, 17> expected_imag = {
>+      {0.f, -0.010482530109584331512451171875f, 0.04762755334377288818359375f,
>+       -0.0558677613735198974609375f, 0.007908363826572895050048828125f,
>+       -0.0071932487189769744873046875f, 0.01322011835873126983642578125f,
>+       -0.011227893643081188201904296875f, -0.0400779247283935546875f,
>+       -0.0290451310575008392333984375f, 0.01519204117357730865478515625f,
>+       -0.09711246192455291748046875f, -0.00136523949913680553436279296875f,
>+       0.038602568209171295166015625f, -0.009693108499050140380859375f,
>+       -0.0183933563530445098876953125f, 0.f}};
>+
>+  KissFft fft(32);
>+  std::array<std::complex<float>, 32> fft_buf_in;
>+  std::array<std::complex<float>, 32> fft_buf_out;
>+  FillFftInputBuffer(samples.size(), samples.data(), fft_buf_in.data());
>+  fft.ForwardFft(fft_buf_in.size(), fft_buf_in.data(), fft_buf_out.size(),
>+                 fft_buf_out.data());
>+  CheckFftResult(expected_real.size(), expected_real.data(),
>+                 expected_imag.data(), fft_buf_out.data(),
>+                 std::numeric_limits<float>::min());
>+}
>+
>+}  // namespace test
>+}  // namespace rnnoise
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_activations.h b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_activations.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..af810319962e7a2aa333444b64c5aabae837b271
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_activations.h
>@@ -0,0 +1,102 @@
>+/* Copyright (c) 2008-2011 Octasic Inc.
>+                 2012-2017 Jean-Marc Valin */
>+/*
>+   Redistribution and use in source and binary forms, with or without
>+   modification, are permitted provided that the following conditions
>+   are met:
>+
>+   - Redistributions of source code must retain the above copyright
>+   notice, this list of conditions and the following disclaimer.
>+
>+   - Redistributions in binary form must reproduce the above copyright
>+   notice, this list of conditions and the following disclaimer in the
>+   documentation and/or other materials provided with the distribution.
>+
>+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
>+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
>+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
>+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
>+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
>+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
>+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
>+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+*/
>+
>+#ifndef THIRD_PARTY_RNNOISE_SRC_RNN_ACTIVATIONS_H_
>+#define THIRD_PARTY_RNNOISE_SRC_RNN_ACTIVATIONS_H_
>+
>+#include <cmath>
>+
>+namespace rnnoise {
>+
>+inline float TansigApproximated(float x) {
>+  static constexpr float kTansigTable[201] = {
>+      0.000000f, 0.039979f, 0.079830f, 0.119427f, 0.158649f, 0.197375f,
>+      0.235496f, 0.272905f, 0.309507f, 0.345214f, 0.379949f, 0.413644f,
>+      0.446244f, 0.477700f, 0.507977f, 0.537050f, 0.564900f, 0.591519f,
>+      0.616909f, 0.641077f, 0.664037f, 0.685809f, 0.706419f, 0.725897f,
>+      0.744277f, 0.761594f, 0.777888f, 0.793199f, 0.807569f, 0.821040f,
>+      0.833655f, 0.845456f, 0.856485f, 0.866784f, 0.876393f, 0.885352f,
>+      0.893698f, 0.901468f, 0.908698f, 0.915420f, 0.921669f, 0.927473f,
>+      0.932862f, 0.937863f, 0.942503f, 0.946806f, 0.950795f, 0.954492f,
>+      0.957917f, 0.961090f, 0.964028f, 0.966747f, 0.969265f, 0.971594f,
>+      0.973749f, 0.975743f, 0.977587f, 0.979293f, 0.980869f, 0.982327f,
>+      0.983675f, 0.984921f, 0.986072f, 0.987136f, 0.988119f, 0.989027f,
>+      0.989867f, 0.990642f, 0.991359f, 0.992020f, 0.992631f, 0.993196f,
>+      0.993718f, 0.994199f, 0.994644f, 0.995055f, 0.995434f, 0.995784f,
>+      0.996108f, 0.996407f, 0.996682f, 0.996937f, 0.997172f, 0.997389f,
>+      0.997590f, 0.997775f, 0.997946f, 0.998104f, 0.998249f, 0.998384f,
>+      0.998508f, 0.998623f, 0.998728f, 0.998826f, 0.998916f, 0.999000f,
>+      0.999076f, 0.999147f, 0.999213f, 0.999273f, 0.999329f, 0.999381f,
>+      0.999428f, 0.999472f, 0.999513f, 0.999550f, 0.999585f, 0.999617f,
>+      0.999646f, 0.999673f, 0.999699f, 0.999722f, 0.999743f, 0.999763f,
>+      0.999781f, 0.999798f, 0.999813f, 0.999828f, 0.999841f, 0.999853f,
>+      0.999865f, 0.999875f, 0.999885f, 0.999893f, 0.999902f, 0.999909f,
>+      0.999916f, 0.999923f, 0.999929f, 0.999934f, 0.999939f, 0.999944f,
>+      0.999948f, 0.999952f, 0.999956f, 0.999959f, 0.999962f, 0.999965f,
>+      0.999968f, 0.999970f, 0.999973f, 0.999975f, 0.999977f, 0.999978f,
>+      0.999980f, 0.999982f, 0.999983f, 0.999984f, 0.999986f, 0.999987f,
>+      0.999988f, 0.999989f, 0.999990f, 0.999990f, 0.999991f, 0.999992f,
>+      0.999992f, 0.999993f, 0.999994f, 0.999994f, 0.999994f, 0.999995f,
>+      0.999995f, 0.999996f, 0.999996f, 0.999996f, 0.999997f, 0.999997f,
>+      0.999997f, 0.999997f, 0.999997f, 0.999998f, 0.999998f, 0.999998f,
>+      0.999998f, 0.999998f, 0.999998f, 0.999999f, 0.999999f, 0.999999f,
>+      0.999999f, 0.999999f, 0.999999f, 0.999999f, 0.999999f, 0.999999f,
>+      0.999999f, 0.999999f, 0.999999f, 0.999999f, 1.000000f, 1.000000f,
>+      1.000000f, 1.000000f, 1.000000f, 1.000000f, 1.000000f, 1.000000f,
>+      1.000000f, 1.000000f, 1.000000f,
>+  };
>+
>+  // Tests are reversed to catch NaNs.
>+  if (!(x < 8.f))
>+    return 1.f;
>+  if (!(x > -8.f))
>+    return -1.f;
>+  float sign = 1.f;
>+  if (x < 0.f) {
>+    x = -x;
>+    sign = -1.f;
>+  }
>+  // Look-up.
>+  int i = static_cast<int>(std::floor(0.5f + 25 * x));
>+  float y = kTansigTable[i];
>+  // Map i back to x's scale (undo 25 factor).
>+  x -= 0.04f * i;
>+  y = y + x * (1.f - y * y) * (1.f - y * x);
>+  return sign * y;
>+}
>+
>+inline float SigmoidApproximated(const float x) {
>+  return 0.5f + 0.5f * TansigApproximated(0.5f * x);
>+}
>+
>+inline float RectifiedLinearUnit(const float x) {
>+  return x < 0.f ? 0.f : x;
>+}
>+
>+}  // namespace rnnoise
>+
>+#endif  // THIRD_PARTY_RNNOISE_SRC_RNN_ACTIVATIONS_H_
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.cc b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.cc
>new file mode 100644
>index 0000000000000000000000000000000000000000..40c184b98b0dcf23d2e20ed101d1c384b53bcad2
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.cc
>@@ -0,0 +1,401 @@
>+#include "third_party/rnnoise/src/rnn_vad_weights.h"
>+
>+namespace rnnoise {
>+
>+const int8_t kInputDenseWeights[kInputLayerWeights] = {
>+    -10,  0,    -3,   1,    -8,   -6,   3,    -13,  1,    0,    -3,   -7,
>+    -5,   -3,   6,    -1,   -6,   0,    -6,   -4,   -1,   -2,   1,    1,
>+    -7,   2,    21,   10,   -5,   -20,  24,   23,   37,   8,    -2,   33,
>+    -6,   22,   13,   -2,   50,   8,    13,   1,    -15,  30,   -10,  30,
>+    0,    3,    5,    27,   1,    4,    -3,   41,   56,   35,   -2,   49,
>+    -13,  11,   13,   -2,   -47,  5,    -16,  -60,  -15,  77,   -17,  26,
>+    -3,   14,   -21,  19,   -5,   -19,  -13,  0,    10,   14,   9,    31,
>+    -13,  -41,  -10,  4,    22,   18,   -48,  -6,   -10,  62,   -3,   -18,
>+    -14,  12,   26,   -28,  3,    14,   25,   -13,  -19,  6,    5,    36,
>+    -3,   -65,  -12,  0,    31,   -7,   -9,   101,  -4,   26,   16,   17,
>+    -12,  -12,  14,   -36,  -3,   5,    -15,  21,   2,    30,   -3,   38,
>+    -4,   1,    -6,   7,    -7,   14,   38,   -22,  -30,  -3,   -7,   3,
>+    -39,  -70,  -126, 25,   34,   94,   -67,  -22,  -33,  83,   -47,  -118,
>+    4,    70,   33,   25,   62,   -128, -76,  -118, -113, 49,   -12,  -100,
>+    -18,  -114, -33,  43,   32,   61,   40,   -9,   -106, 2,    36,   -100,
>+    -40,  -5,   20,   -75,  61,   -51,  -9,   126,  -27,  -52,  5,    -24,
>+    -21,  -126, -114, -12,  15,   106,  -2,   73,   -125, 50,   13,   -120,
>+    35,   35,   4,    -61,  29,   -124, 6,    -53,  -69,  -125, 64,   -89,
>+    36,   -107, -103, -7,   27,   121,  69,   77,   -35,  35,   95,   -125,
>+    -49,  97,   -45,  -43,  -23,  23,   -28,  -65,  -118, 2,    8,    -126,
>+    27,   -97,  92,   5,    55,   82,   17,   -57,  -115, 37,   8,    -106,
>+    -46,  41,   -2,   21,   -44,  8,    -73,  -58,  -39,  34,   89,   -95,
>+    95,   -117, 120,  -58,  31,   123,  1,    -32,  -109, -110, 60,   -120,
>+    -43,  -74,  5,    91,   26,   21,   114,  82,   -83,  -126, 123,  22,
>+    -16,  -67,  25,   -83,  46,   48,   -34,  -121, -124, -63,  -35,  -9,
>+    31,   82,   123,  6,    -3,   117,  93,   -2,   -13,  -36,  124,  -112,
>+    -6,   -102, -5,   -33,  -15,  44,   -69,  -127, -23,  -40,  -34,  -85,
>+    68,   83,   -1,   40,   8,    84,   118,  -58,  -55,  -102, 123,  -55,
>+    -14,  -123, 44,   -63,  -14,  21,   35,   16,   24,   -126, -13,  -114,
>+    35,   20,   -36,  61,   -9,   97,   34,   19,   -32,  -109, 76,   -104,
>+    99,   -119, 45,   -125, -51,  -28,  -8,   -69,  -8,   125,  -45,  -93,
>+    113,  103,  -41,  -82,  52,   7,    126,  0,    -40,  104,  55,   -58,
>+    17,   -124, -93,  -58,  8,    -45,  1,    56,   -123, 108,  -47,  -23,
>+    115,  127,  17,   -68,  -13,  116,  -82,  -44,  45,   67,   -120, -101,
>+    -15,  -125, 120,  -113, 17,   -48,  -73,  126,  -64,  -86,  -118, -19,
>+    112,  -1,   -66,  -27,  -62,  121,  -86,  -58,  50,   89,   -38,  -75,
>+    95,   -111, 12,   -113, 2,    -68,  2,    -94,  -121, 91,   -5,   0,
>+    79,   43,   -7,   -18,  79,   35,   -38,  47,   1,    -45,  83,   -50,
>+    102,  32,   55,   -96,  15,   -122, -69,  45,   -27,  91,   -62,  -30,
>+    46,   -95,  22,   -72,  -97,  -1,   14,   -122, 28,   127,  61,   -126,
>+    121,  9,    68,   -120, 49,   -60,  90,   3,    43,   68,   54,   34,
>+    -10,  28,   21,   -24,  -54,  22,   -113, -12,  82,   -2,   -17,  -9,
>+    127,  8,    116,  -92,  0,    -70,  -33,  123,  66,   116,  -74,  -4,
>+    74,   -72,  -22,  -47,  1,    -83,  -60,  -124, 1,    122,  -57,  -43,
>+    49,   40,   -126, -128, -8,   -29,  28,   -24,  -123, -121, -70,  -93,
>+    -37,  -126, 11,   -125, -37,  11,   -31,  -51,  -124, 116,  -128, 8,
>+    -25,  109,  75,   -12,  7,    8,    10,   117,  124,  -128, -128, 29,
>+    -26,  101,  21,   -128, 87,   8,    -39,  23,   -128, 127,  -127, 74,
>+    -55,  74,   112,  127,  4,    55,   44,   -92,  123,  34,   -93,  47,
>+    -21,  -92,  17,   49,   -121, 92,   7,    -126, -125, 124,  -74,  3,
>+    -59,  18,   -91,  3,    -9,   9,    56,   116,  7,    -29,  33,   87,
>+    -21,  -128, -13,  57,   74,   9,    -29,  -61,  -97,  -21,  -95,  -12,
>+    -114, 16,   82,   125,  -7,   10,   -24,  9,    77,   -128, -102, -25,
>+    3,    -126, 10,   13,   -18,  51,   26,   127,  -79,  35,   51,   12,
>+    -50,  -24,  1,    -7,   22,   81,   65,   120,  -30,  -38,  85,   122,
>+    -4,   -106, -11,  27,   53,   41,   8,    -104, -66,  -38,  -124, 10,
>+    12,   76,   117,  -109, 9,    11,   2,    -18,  3,    113,  -16,  -79,
>+    -39,  -123, -20,  -128, 2,    13,   -33,  -58,  10,   84,   -104, 13,
>+    64,   109,  1,    54,   -12,  28,   24,   63,   -126, 118,  -82,  46,
>+    -12,  -15,  14,   -43,  60,   22,   -32,  -19,  -46,  91,   -107, 24,
>+    -94,  26,   -47,  125,  6,    58,   -15,  -75,  -26,  -38,  -35,  103,
>+    -16,  -17,  -13,  63,   -2,   45,   -45,  -73,  -23,  70,   -87,  51,
>+    -17,  53,   76,   14,   -18,  -31,  -14,  103,  8,    21,   -28,  -33,
>+    -20,  -47,  6,    39,   40,   -30,  7,    -76,  55,   31,   -20,  -21,
>+    -59,  1,    25,   -11,  17,   5,    -13,  -39,  0,    -76,  50,   -33,
>+    -29,  -50,  -16,  -11,  -12,  -1,   -46,  40,   -10,  65,   -19,  21,
>+    -41,  -32,  -83,  -19,  -4,   49,   -60,  118,  -24,  -46,  9,    102,
>+    -20,  8,    -19,  25,   31,   -3,   -37,  0,    25,   7,    29,   2,
>+    -39,  127,  -64,  -20,  64,   115,  -30,  36,   100,  35,   122,  127,
>+    127,  -127, 127,  -127, 19,   127,  -89,  -79,  -32,  39,   -127, 125,
>+    -80,  126,  -127, 26,   8,    98,   -8,   -57,  -90,  -50,  126,  61,
>+    127,  -126, 40,   -106, -68,  104,  -125, -119, 11,   10,   -127, 66,
>+    -56,  -12,  -126, -104, 27,   75,   38,   -124, -126, -125, 84,   -123,
>+    -45,  -114, -128, 127,  103,  -101, -124, 127,  -11,  -23,  -123, 92,
>+    -123, 24,   126,  41,   -2,   -39,  -27,  -94,  40,   -112, -48,  127,
>+    58,   14,   38,   -75,  -64,  73,   117,  100,  -119, -11,  6,    32,
>+    -126, -14,  35,   121,  -10,  54,   -60,  89,   -3,   69,   -25,  -20,
>+    43,   -86,  -34,  24,   27,   7,    -81,  -99,  -23,  -16,  -26,  13,
>+    35,   -97,  80,   -29,  -13,  -121, -12,  -65,  -94,  70,   -89,  -126,
>+    -95,  88,   33,   96,   29,   -90,  69,   114,  -78,  65,   90,   -47,
>+    -47,  89,   1,    -12,  3,    8,    30,   5,    2,    -30,  -1,   6,
>+    -7,   10,   -4,   46,   -27,  -40,  22,   -6,   -17,  45,   24,   -9,
>+    23,   -14,  -63,  -26,  -12,  -57,  27,   25,   55,   -76,  -47,  21,
>+    34,   33,   26,   17,   14,   6,    9,    26,   25,   -25,  -25,  -18};
>+
>+const int8_t kInputDenseBias[kInputLayerOutputSize] = {
>+    38,  -6,  127,  127, 127,  -43, -127, 78,  127, 5,   127, 123,
>+    127, 127, -128, -76, -126, 28,  127,  125, -30, 127, -89, -20};
>+
>+const int8_t kHiddenGruWeights[kHiddenLayerWeights] = {
>+    -124, 23,   -123, -33,  -95,  -4,   8,    -84,  4,    101,  -119, 116,
>+    -4,   123,  103,  -51,  29,   -124, -114, -49,  31,   9,    75,   -128,
>+    0,    -49,  37,   -50,  46,   -21,  -63,  -104, 54,   82,   33,   21,
>+    70,   127,  -9,   -79,  -39,  -23,  -127, 107,  122,  -96,  -46,  -18,
>+    -39,  13,   -28,  -48,  14,   56,   -52,  49,   -1,   -121, 25,   -18,
>+    -36,  -52,  -57,  -30,  54,   -124, -26,  -47,  10,   39,   12,   2,
>+    9,    -127, -128, 102,  21,   11,   -64,  -71,  89,   -113, -111, 54,
>+    31,   94,   121,  -40,  30,   40,   -109, 73,   -9,   108,  -92,  2,
>+    -127, 116,  127,  127,  -122, 95,   127,  -37,  -127, 28,   89,   10,
>+    24,   -104, -62,  -67,  -14,  38,   14,   -71,  22,   -41,  20,   -50,
>+    39,   63,   86,   127,  -18,  79,   4,    -51,  2,    33,   117,  -113,
>+    -78,  56,   -91,  37,   34,   -45,  -44,  -22,  21,   -16,  56,   30,
>+    -84,  -79,  38,   -74,  127,  9,    -25,  2,    82,   61,   25,   -26,
>+    26,   11,   117,  -65,  12,   -58,  42,   -62,  -93,  11,   11,   124,
>+    -123, 80,   -125, 11,   -90,  42,   94,   4,    -109, -1,   85,   -52,
>+    45,   -26,  -27,  77,   -5,   30,   90,   0,    95,   -7,   53,   29,
>+    -82,  22,   -9,   74,   2,    -12,  -73,  114,  97,   -64,  122,  -77,
>+    43,   91,   86,   126,  106,  72,   90,   -43,  46,   96,   -51,  21,
>+    22,   68,   22,   41,   79,   75,   -46,  -105, 23,   -116, 127,  -123,
>+    102,  57,   85,   10,   -29,  34,   125,  126,  124,  81,   -15,  54,
>+    96,   -128, 39,   -124, 103,  74,   126,  127,  -50,  -71,  -122, -64,
>+    93,   -75,  71,   105,  122,  123,  126,  122,  -127, 33,   -63,  -74,
>+    124,  -71,  33,   41,   -56,  19,   6,    65,   41,   90,   -116, -3,
>+    -46,  75,   -13,  98,   -74,  -42,  74,   -95,  -96,  81,   24,   32,
>+    -19,  -123, 74,   55,   109,  115,  0,    32,   33,   12,   -20,  9,
>+    127,  127,  -61,  79,   -48,  -54,  -49,  101,  -9,   27,   -106, 74,
>+    119,  77,   87,   -126, -24,  127,  124,  31,   34,   127,  40,   3,
>+    -90,  127,  23,   57,   -53,  127,  -69,  -88,  -33,  127,  19,   -46,
>+    -9,   -125, 13,   -126, -113, 127,  -41,  46,   106,  -62,  3,    -10,
>+    111,  49,   -34,  -24,  -20,  -112, 11,   101,  -50,  -34,  50,   65,
>+    -64,  -106, 70,   -48,  60,   9,    -122, -45,  15,   -112, -26,  -4,
>+    1,    39,   23,   58,   -45,  -80,  127,  82,   58,   30,   -94,  -119,
>+    51,   -89,  95,   -107, 30,   127,  125,  58,   -52,  -42,  -38,  -20,
>+    -122, 115,  39,   -26,  5,    73,   13,   -39,  43,   -23,  -20,  -125,
>+    23,   35,   53,   -61,  -66,  72,   -20,  33,   8,    35,   4,    7,
>+    18,   19,   16,   -45,  -50,  -71,  31,   -29,  -41,  -27,  10,   14,
>+    27,   9,    -23,  98,   6,    -94,  92,   127,  -114, 59,   -26,  -100,
>+    -62,  -127, -17,  -85,  -60,  126,  -42,  -6,   33,   -120, -26,  -126,
>+    -127, -35,  -114, -31,  25,   -126, -100, -126, -64,  -46,  -31,  30,
>+    25,   -74,  -111, -97,  -81,  -104, -114, -19,  -9,   -116, -69,  22,
>+    30,   59,   8,    -51,  16,   -97,  18,   -4,   -89,  80,   -50,  3,
>+    36,   -67,  56,   69,   -26,  107,  -10,  58,   -28,  -4,   -57,  -72,
>+    -111, 0,    -75,  -119, 14,   -75,  -49,  -66,  -49,  8,    -121, 22,
>+    -54,  121,  30,   54,   -26,  -126, -123, 56,   5,    48,   21,   -127,
>+    -11,  23,   25,   -82,  6,    -25,  119,  78,   4,    -104, 27,   61,
>+    -48,  37,   -13,  -52,  50,   -50,  44,   -1,   -22,  -43,  -59,  -78,
>+    -67,  -32,  -26,  9,    -3,   40,   16,   19,   3,    -9,   20,   -6,
>+    -37,  28,   39,   17,   -19,  -10,  1,    6,    -59,  74,   47,   3,
>+    -119, 0,    -128, -107, -25,  -22,  -69,  -23,  -111, -42,  -93,  -120,
>+    90,   -85,  -54,  -118, 76,   -79,  124,  101,  -77,  -75,  -17,  -71,
>+    -114, 68,   55,   79,   -1,   -123, -20,  127,  -65,  -123, -128, -87,
>+    123,  9,    -115, -14,  7,    -4,   127,  -79,  -115, 125,  -28,  89,
>+    -83,  49,   89,   119,  -69,  -5,   12,   -49,  60,   57,   -24,  -99,
>+    -110, 76,   -83,  125,  73,   81,   11,   8,    -45,  1,    83,   13,
>+    -70,  -2,   97,   112,  -97,  53,   -9,   -94,  124,  44,   -49,  -24,
>+    52,   76,   -110, -70,  -114, -12,  72,   -4,   -114, 43,   -43,  81,
>+    102,  -84,  -27,  62,   -40,  52,   58,   124,  -35,  -51,  -123, -43,
>+    56,   -75,  -34,  -35,  -106, 93,   -43,  14,   -16,  46,   62,   -97,
>+    21,   30,   -53,  21,   -11,  -33,  -20,  -95,  4,    -126, 12,   45,
>+    20,   108,  85,   11,   20,   -40,  99,   4,    -25,  -18,  -23,  -12,
>+    -126, -55,  -20,  -44,  -51,  91,   -127, 127,  -44,  7,    127,  78,
>+    38,   125,  -6,   -94,  -103, 73,   126,  -126, 18,   59,   -46,  106,
>+    76,   116,  -31,  75,   -4,   92,   102,  32,   -31,  73,   42,   -21,
>+    -28,  57,   127,  -8,   -107, 115,  124,  -94,  -4,   -128, 29,   -57,
>+    70,   -82,  50,   -13,  -44,  38,   67,   -93,  6,    -39,  -46,  56,
>+    68,   27,   61,   26,   18,   -72,  127,  22,   18,   -31,  127,  61,
>+    -65,  -38,  1,    -67,  -1,   8,    -73,  46,   -116, -94,  58,   -49,
>+    71,   -40,  -63,  -82,  -20,  -60,  93,   76,   69,   -106, 34,   -31,
>+    4,    -25,  107,  -18,  45,   4,    -61,  126,  54,   -126, -125, 41,
>+    19,   44,   32,   -98,  125,  -24,  125,  -96,  -125, 15,   87,   -4,
>+    -90,  18,   -40,  28,   -69,  67,   22,   41,   39,   7,    -48,  -44,
>+    12,   69,   -13,  2,    44,   -38,  111,  -7,   -126, -22,  -9,   74,
>+    -128, -36,  -7,   -123, -15,  -79,  -91,  -37,  -127, -122, 104,  30,
>+    7,    98,   -37,  111,  -116, -47,  127,  -45,  118,  -111, -123, -120,
>+    -77,  -64,  -125, 124,  77,   111,  77,   18,   -113, 117,  -9,   67,
>+    -77,  126,  49,   -20,  -124, 39,   41,   -124, -34,  114,  -87,  -126,
>+    98,   -20,  59,   -17,  -24,  125,  107,  54,   35,   33,   -44,  12,
>+    -29,  125,  -71,  -28,  -63,  -114, 28,   -17,  121,  -36,  127,  89,
>+    -122, -49,  -18,  -48,  17,   24,   19,   -64,  -128, 13,   86,   45,
>+    13,   -49,  55,   84,   48,   80,   -39,  99,   -127, 70,   -33,  30,
>+    50,   126,  -65,  -117, -13,  -20,  -24,  127,  115,  -72,  -104, 63,
>+    126,  -42,  57,   17,   46,   21,   119,  110,  -100, -60,  -112, 62,
>+    -33,  28,   26,   -22,  -60,  -33,  -54,  78,   25,   32,   -114, 86,
>+    44,   26,   43,   76,   121,  19,   97,   -2,   -3,   -73,  -68,  6,
>+    -116, 6,    -43,  -97,  46,   -128, -120, -31,  -119, -29,  16,   16,
>+    -126, -128, -126, -46,  -9,   -3,   92,   -31,  -76,  -126, -3,   -107,
>+    -12,  -23,  -69,  5,    51,   27,   -42,  23,   -70,  -128, -29,  22,
>+    29,   -126, -55,  50,   -71,  -3,   127,  44,   -27,  -70,  -63,  -66,
>+    -70,  104,  86,   115,  29,   -92,  41,   -90,  44,   -11,  -28,  20,
>+    -11,  -63,  -16,  43,   31,   17,   -73,  -31,  -1,   -17,  -11,  -39,
>+    56,   18,   124,  72,   -14,  28,   69,   -121, -125, 34,   127,  63,
>+    86,   -80,  -126, -125, -124, -47,  124,  77,   124,  -19,  23,   -7,
>+    -50,  96,   -128, -93,  102,  -53,  -36,  -87,  119,  -125, 92,   -126,
>+    118,  102,  72,   -2,   125,  10,   97,   124,  -125, 125,  71,   -20,
>+    -47,  -116, -121, -4,   -9,   -32,  79,   -124, -36,  33,   -128, -74,
>+    125,  23,   127,  -29,  -115, -32,  124,  -89,  32,   -107, 43,   -17,
>+    24,   24,   18,   29,   -13,  -15,  -36,  62,   -91,  4,    -41,  95,
>+    28,   -23,  6,    46,   84,   66,   77,   68,   -70,  -1,   -23,  -6,
>+    65,   70,   -21,  9,    77,   -12,  2,    -118, 4,    9,    -108, 84,
>+    52,   2,    52,   13,   -10,  58,   -110, 18,   66,   -95,  -23,  70,
>+    31,   -3,   56,   56,   -3,   -7,   1,    -27,  -48,  -61,  41,   -4,
>+    10,   -62,  32,   -7,   -24,  9,    -48,  -60,  -4,   79,   -20,  -38,
>+    -76,  68,   -49,  -97,  0,    -15,  5,    -100, -49,  -95,  -99,  -115,
>+    -9,   -40,  10,   104,  13,   56,   127,  -27,  -109, -94,  -118, -102,
>+    -44,  -85,  52,   127,  -4,   14,   62,   121,  -122, -26,  -79,  -42,
>+    -34,  1,    25,   -38,  -79,  -58,  -31,  -31,  -90,  -30,  -123, 32,
>+    -56,  125,  66,   124,  -1,   3,    91,   -103, -7,   23,   78,   -18,
>+    9,    69,   -69,  76,   -38,  -33,  -2,   -98,  18,   106,  84,   55,
>+    87,   -47,  35,   -124, 64,   41,   -14,  46,   25,   -2,   120,  -21,
>+    82,   19,   -79,  -37,  -3,   -8,   -16,  21,   19,   -5,   -28,  -112,
>+    39,   -6,   -30,  53,   -69,  53,   46,   127,  123,  78,   20,   28,
>+    -7,   73,   72,   17,   -40,  41,   111,  57,   32,   -95,  29,   28,
>+    -39,  -65,  54,   -20,  -63,  29,   -67,  3,    44,   -57,  -47,  11,
>+    61,   -22,  -44,  61,   48,   -100, 20,   125,  96,   -24,  -16,  3,
>+    -69,  -126, 74,   -125, 9,    45,   -67,  -123, -59,  -72,  118,  69,
>+    45,   50,   -57,  67,   13,   -66,  -106, 47,   62,   22,   -1,   -22,
>+    -25,  -40,  -125, 3,    125,  32,   102,  -56,  -25,  -75,  -30,  122,
>+    60,   -13,  36,   -73,  7,    -84,  124,  40,   -118, 17,   -87,  -118,
>+    -8,   3,    -27,  111,  -40,  40,   -51,  127,  125,  -45,  -30,  -54,
>+    46,   80,   -1,   -30,  101,  -17,  18,   26,   54,   7,    -12,  1,
>+    -127, 123,  -122, -27,  -75,  64,   10,   25,   -15,  -44,  127,  -127,
>+    5,    -84,  -81,  -7,   19,   -26,  126,  15,   116,  -126, 14,   -76,
>+    44,   62,   -110, -124, 125,  -29,  -87,  -3,   -69,  82,   90,   57,
>+    -123, 123,  100,  -19,  -51,  -32,  69,   37,   -57,  -128, -124, -72,
>+    -13,  51,   -7,   -45,  -73,  5,    99,   -26,  -117, -96,  -109, 4,
>+    -31,  -12,  0,    31,   -42,  -27,  12,   -81,  118,  39,   83,   14,
>+    41,   -126, 107,  -82,  94,   -116, -122, -47,  -109, -84,  -128, -35,
>+    -56,  66,   8,    -65,  19,   42,   -46,  -72,  -109, 41,   43,   -127,
>+    -113, 58,   127,  42,   -75,  -1,   65,   117,  -55,  -113, -123, 124,
>+    43,   -96,  -115, -19,  68,   15,   94,   3,    75,   0,    34,   9,
>+    42,   110,  -48,  92,   -76,  99,   -17,  27,   32,   13,   125,  50,
>+    -17,  56,   4,    53,   34,   -8,   99,   80,   -126, -21,  -65,  -11,
>+    -46,  44,   -81,  -3,   -121, 123,  66,   -81,  -84,  119,  127,  84,
>+    105,  45,   -66,  -42,  -23,  32,   -25,  12,   111,  127,  88,   125,
>+    30,   24,   -127, -9,   -54,  127,  -116, -119, 88,   70,   94,   -120,
>+    35,   -93,  15,   22,   -21,  25,   -110, -123, -45,  8,    -109, 125,
>+    -122, -86,  -126, 8,    -14,  -120, -45,  -45,  69,   -125, -122, 6,
>+    81,   86,   125,  95,   54,   77,   54,   -123, 126,  -85,  -117, 56,
>+    11,   0,    -61,  -91,  -12,  -2,   -113, -3,   -15,  -122, -63,  -91,
>+    10,   84,   -111, 125,  93,   21,   62,   -78,  -116, 13,   -57,  28,
>+    -124, 126,  110,  12,   15,   95,   15,   -19,  -125, -97,  52,   -7,
>+    101,  9,    20,   -125, -26,  -56,  72,   77,   12,   -126, 22,   -29,
>+    47,   62,   95,   112,  69,   32,   97,   -83,  -8,   -5,   67,   -63,
>+    -123, 79,   59,   0,    -6,   -17,  4,    -111, -52,  27,   65,   0};
>+
>+const int8_t kHiddenGruRecurrentWeights[kHiddenLayerWeights] = {
>+    65,   83,   35,   56,   24,   -34,  -28,  -2,   125,  19,   42,   -9,
>+    124,  -53,  24,   -87,  11,   35,   -81,  -35,  -125, -31,  123,  -21,
>+    33,   -91,  113,  -93,  45,   -6,   53,   38,   -92,  8,    -27,  87,
>+    4,    43,   43,   10,   -128, -128, -46,  127,  -38,  -45,  25,   -87,
>+    19,   5,    52,   -96,  -23,  -29,  121,  -126, -24,  -20,  -2,   69,
>+    -50,  6,    71,   -81,  -125, 90,   -94,  1,    -38,  36,   89,   17,
>+    -60,  71,   -48,  18,   -15,  44,   -18,  59,   11,   114,  -51,  32,
>+    110,  1,    4,    109,  -24,  127,  27,   60,   88,   24,   45,   -59,
>+    75,   -36,  8,    57,   -32,  -25,  13,   126,  -89,  -61,  -76,  127,
>+    18,   -62,  -68,  23,   -113, 5,    126,  43,   -88,  26,   -78,  18,
>+    75,   21,   9,    -74,  20,   41,   126,  -118, -15,  9,    116,  126,
>+    -127, 34,   -6,   126,  -128, -53,  -54,  -55,  -121, 70,   127,  -12,
>+    -68,  82,   -25,  104,  -126, 126,  -21,  -26,  124,  -75,  -127, -120,
>+    13,   61,   -64,  -108, -63,  -65,  -44,  -35,  -61,  -39,  109,  -74,
>+    113,  -3,   108,  -30,  125,  120,  39,   125,  -128, -95,  -99,  111,
>+    9,    25,   114,  -75,  -92,  -54,  -12,  -32,  -38,  10,   31,   10,
>+    63,   51,   40,   -99,  74,   4,    50,   -128, -36,  -35,  -11,  -28,
>+    -126, -7,   66,   -58,  -126, -22,  -83,  -61,  -127, 49,   126,  -8,
>+    7,    62,   36,   -11,  -32,  -44,  63,   116,  41,   65,   -127, 126,
>+    63,   -30,  -96,  74,   -92,  127,  38,   -18,  -128, 68,   -5,   101,
>+    -4,   85,   58,   79,   0,    -58,  8,    119,  -70,  -1,   -79,  -68,
>+    114,  -28,  -90,  -6,   -112, 2,    127,  -8,   10,   55,   -59,  -126,
>+    127,  125,  80,   72,   35,   -54,  95,   -124, -124, 79,   23,   -46,
>+    -61,  -127, -100, 99,   -77,  8,    -87,  5,    -2,   49,   85,   7,
>+    -71,  82,   53,   -41,  22,   -22,  -93,  -103, 6,    52,   -56,  14,
>+    -8,   -111, 85,   16,   54,   32,   -118, -24,  61,   -53,  96,   -70,
>+    -5,   -17,  -67,  -84,  -7,   -82,  -107, -96,  21,   -83,  -58,  50,
>+    12,   -126, -1,   -28,  34,   -126, 115,  17,   91,   1,    -127, 72,
>+    11,   126,  -81,  6,    96,   -8,   77,   15,   -6,   63,   -27,  20,
>+    -123, -109, 85,   -79,  -17,  126,  -92,  2,    -61,  20,   14,   17,
>+    121,  123,  30,   57,   120,  127,  57,   42,   117,  98,   67,   39,
>+    -20,  -70,  100,  7,    125,  122,  40,   16,   -79,  125,  83,   41,
>+    -106, -57,  24,   55,   27,   -66,  -111, -44,  -7,   -43,  -66,  121,
>+    42,   -128, -45,  35,   15,   -127, 34,   -35,  -34,  -40,  -18,  -6,
>+    63,   111,  31,   116,  127,  19,   24,   -71,  -39,  34,   11,   19,
>+    -40,  27,   12,   106,  -10,  56,   -82,  -106, -2,   -50,  -52,  114,
>+    -126, -34,  -43,  -68,  10,   76,   57,   -118, -128, 37,   -104, 76,
>+    125,  3,    -76,  127,  -29,  84,   -94,  -15,  55,   125,  79,   127,
>+    -57,  -125, 104,  -68,  126,  126,  -77,  51,   45,   33,   -109, 115,
>+    -11,  1,    95,   -121, -5,   -9,   -126, -114, 39,   68,   -126, -107,
>+    -51,  -42,  24,   -8,   51,   -27,  -43,  66,   -45,  62,   -98,  -109,
>+    69,   67,   0,    -125, -128, 49,   31,   126,  -122, 2,    -55,  -67,
>+    -126, -70,  -128, -125, -77,  25,   16,   -8,   -102, 11,   -75,  82,
>+    38,   -5,   5,    19,   34,   47,   -127, -93,  21,   24,   -97,  -18,
>+    31,   39,   34,   -20,  22,   123,  7,    -77,  -81,  -46,  -9,   1,
>+    23,   39,   -127, -43,  -8,   -50,  10,   -21,  59,   -9,   -4,   -13,
>+    -27,  44,   127,  52,   -47,  70,   -43,  52,   101,  -49,  27,   45,
>+    49,   33,   -125, 55,   114,  20,   -1,   76,   -24,  -96,  105,  24,
>+    126,  75,   -21,  -105, 13,   -42,  40,   126,  -30,  -39,  -95,  125,
>+    -63,  11,   6,    125,  125,  -14,  5,    42,   -61,  -4,   49,   88,
>+    6,    -107, -28,  19,   -29,  47,   126,  6,    -46,  -89,  -18,  91,
>+    -20,  -6,   118,  -21,  -22,  39,   115,  11,   -42,  54,   73,   -55,
>+    -77,  62,   -27,  -59,  -99,  -12,  -127, -40,  56,   -3,   -124, -91,
>+    71,   -111, 6,    -19,  82,   -24,  -35,  102,  -42,  7,    -126, -126,
>+    -125, 18,   98,   -52,  127,  105,  -52,  40,   -83,  126,  -122, 109,
>+    5,    127,  48,   6,    5,    -125, 100,  -16,  29,   85,   -89,  8,
>+    4,    41,   62,   -127, 62,   122,  85,   122,  -107, 8,    -125, 93,
>+    -127, 127,  102,  19,   19,   -66,  41,   -42,  114,  127,  -48,  -117,
>+    -29,  -6,   -73,  -102, -3,   -19,  0,    88,   42,   87,   -117, -20,
>+    2,    122,  28,   63,   71,   66,   120,  93,   124,  -43,  49,   103,
>+    31,   90,   -91,  -22,  -126, 26,   -24,  -21,  51,   -126, 87,   -103,
>+    -69,  -10,  -66,  -23,  20,   97,   36,   25,   -127, 30,   -20,  -63,
>+    30,   51,   -116, 23,   40,   -39,  36,   -83,  -77,  -25,  -50,  110,
>+    14,   13,   -109, 125,  -65,  -55,  -87,  124,  -126, -32,  -72,  -108,
>+    127,  127,  -125, -124, 61,   121,  102,  -128, -127, 16,   100,  127,
>+    -124, -68,  72,   -93,  -128, 43,   -93,  -19,  -125, -97,  -113, -33,
>+    83,   127,  -44,  127,  -75,  127,  16,   44,   50,   -122, 23,   118,
>+    46,   19,   26,   -128, 10,   4,    99,   -14,  -82,  -13,  30,   125,
>+    57,   65,   60,   -71,  35,   98,   28,   7,    1,    43,   89,   70,
>+    75,   121,  -59,  82,   -126, -53,  -16,  -116, -65,  52,   -52,  0,
>+    80,   35,   45,   -61,  46,   8,    107,  27,   -26,  -118, 90,   57,
>+    -10,  7,    -15,  0,    -39,  -4,   12,   29,   -1,   116,  84,   79,
>+    119,  125,  -59,  28,   -6,   -25,  -43,  2,    90,   79,   67,   103,
>+    -82,  2,    -6,   125,  19,   73,   0,    -105, 112,  -17,  104,  107,
>+    124,  106,  19,   56,   -44,  55,   -112, 6,    -39,  -83,  126,  -93,
>+    -98,  57,   -120, -23,  -38,  2,    -31,  -48,  106,  127,  127,  69,
>+    16,   110,  71,   104,  62,   -12,  -22,  42,   -37,  -94,  34,   -1,
>+    -32,  -12,  -124, -47,  -13,  60,   -75,  -66,  58,   -127, -2,   64,
>+    76,   -106, 73,   -49,  -31,  127,  126,  31,   16,   127,  -110, 107,
>+    -16,  -53,  20,   69,   -14,  -125, 59,   -44,  15,   120,  125,  125,
>+    43,   6,    19,   -58,  127,  127,  43,   16,   82,   97,   -127, 127,
>+    -93,  -41,  88,   0,    77,   -15,  116,  16,   -124, -31,  -3,   95,
>+    -40,  -126, -54,  -126, -83,  -8,   -59,  6,    67,   -29,  4,    124,
>+    -10,  112,  -28,  -8,   85,   -21,  45,   84,   6,    -8,   11,   72,
>+    32,   84,   -62,  77,   2,    -36,  75,   31,   -50,  116,  126,  119,
>+    -88,  -55,  -14,  -37,  126,  40,   -108, -6,   -6,   57,   64,   -28,
>+    -76,  30,   -117, -93,  31,   -92,  -44,  -64,  94,   58,   65,   114,
>+    41,   47,   71,   42,   -26,  99,   -126, 57,   -5,   74,   -19,  -113,
>+    -1,   67,   -21,  126,  1,    -3,   33,   60,   -82,  37,   -48,  89,
>+    114,  -38,  127,  -114, 35,   58,   -5,   21,   -46,  121,  -123, -43,
>+    127,  115,  123,  122,  -101, 126,  127,  81,   52,   89,   -127, 102,
>+    42,   117,  -9,   -2,   125,  127,  110,  96,   120,  66,   70,   124,
>+    55,   84,   -38,  -58,  119,  -127, -16,  -79,  123,  18,   -127, -50,
>+    -38,  120,  -85,  1,    7,    -56,  108,  -77,  -2,   21,   37,   1,
>+    13,   -105, -69,  28,   -87,  33,   -104, -51,  126,  41,   3,    -121,
>+    28,   71,   58,   86,   -8,   127,  94,   -55,  125,  40,   -19,  127,
>+    -33,  -87,  -23,  7,    -111, -68,  9,    84,   -119, 55,   -82,  78,
>+    -37,  -20,  -9,   -23,  53,   -13,  15,   -46,  116,  126,  -127, 56,
>+    -126, 125,  -7,   -1,   45,   26,   125,  121,  29,   47,   -86,  30,
>+    10,   76,   -125, -7,   23,   92,   -12,  -39,  -18,  92,   -97,  -8,
>+    -85,  -41,  49,   -50,  123,  -37,  -126, -30,  14,   79,   -49,  -65,
>+    9,    -36,  -38,  -96,  85,   -24,  -13,  37,   -25,  -5,   -64,  -127,
>+    55,   -60,  -18,  -61,  -63,  127,  56,   67,   15,   124,  72,   120,
>+    127,  40,   -10,  114,  24,   -23,  46,   78,   -53,  125,  86,   124,
>+    86,   0,    38,   93,   21,   127,  123,  75,   -72,  13,   48,   33,
>+    83,   -51,  15,   -32,  -49,  -33,  120,  64,   7,    9,    65,   60,
>+    21,   -21,  -61,  -53,  -113, 84,   -97,  101,  37,   -114, -27,  41,
>+    73,   126,  -10,  59,   61,   -15,  70,   -13,  82,   -4,   69,   56,
>+    94,   -91,  -50,  92,   -74,  -48,  53,   -7,   -107, 127,  28,   30,
>+    -26,  -21,  -61,  77,   82,   64,   -91,  -125, 122,  -104, 127,  123,
>+    122,  123,  76,   -126, 127,  -6,   -80,  7,    40,   -66,  -65,  54,
>+    -2,   23,   96,   -64,  74,   2,    -53,  -12,  -123, 39,   60,   -20,
>+    16,   -17,  -97,  23,   -4,   -53,  -122, 32,   -16,  -54,  -95,  43,
>+    71,   -1,   -67,  -33,  41,   18,   72,   28,   -83,  31,   -100, -91,
>+    -27,  10,   -128, -106, 2,    76,   -13,  42,   34,   112,  -19,  44,
>+    40,   -9,   -11,  65,   92,   -43,  -125, 2,    47,   -32,  25,   122,
>+    -29,  12,   101,  -8,   -126, -23,  43,   7,    125,  -20,  -124, 82,
>+    -2,   13,   -73,  -106, 115,  31,   116,  -23,  -44,  -71,  84,   3,
>+    47,   91,   127,  127,  -15,  95,   7,    93,   5,    113,  -50,  54,
>+    11,   13,   -127, 17,   72,   43,   -23,  5,    -70,  20,   15,   -27,
>+    99,   69,   -109, -122, -94,  16,   127,  0,    116,  104,  45,   108,
>+    -34,  87,   72,   -14,  118,  46,   42,   109,  -26,  95,   93,   127,
>+    60,   127,  -93,  -54,  -122, 34,   -105, 56,   55,   103,  125,  -71,
>+    -50,  95,   -72,  127,  107,  21,   73,   126,  61,   127,  127,  24,
>+    -62,  90,   73,   90,   -46,  -78,  -124, 72,   123,  -42,  50,   -107,
>+    17,   -32,  -62,  -89,  124,  1,    80,   -2,   117,  119,  -65,  -127,
>+    -95,  -121, -52,  103,  66,   75,   -3,   -62,  -127, 127,  -74,  124,
>+    79,   49,   40,   105,  -67,  -71,  -70,  43,   127,  119,  -4,   66,
>+    43,   23,   91,   -126, 15,   63,   -119, 112,  103,  15,   -99,  31,
>+    -127, 69,   116,  -46,  -67,  2,    -126, -29,  30,   30,   -69,  -98,
>+    -47,  -87,  -70,  -127, 23,   -73,  30,   -7,   94,   -52,  -65,  98,
>+    -45,  97,   53,   23,   -9,   -22,  -52,  -47,  6,    -1,   -85,  -15,
>+    -61,  -14,  68,   110,  -10,  -121, -25,  -35,  -15,  -94,  -123, 27,
>+    75,   48,   -66,  -56,  -44,  93,   109,  67,   -36,  24,   70,   -126,
>+    8,    -127, 126,  52,   11,   -32,  120,  -13,  -26,  -28,  -125, 127,
>+    106,  -50,  124,  36,   -126, -12,  0,    -23,  76,   -71,  -126, -12,
>+    -17,  -82,  12,   124,  57,   33,   4,    77,   -46,  71,   -34,  72,
>+    125,  -128, 124,  -24,  -128, 75,   -120, 69,   -45,  55,   33,   127,
>+    -33,  4,    -105, -41,  -59,  -91,  123,  44,   -127, 127,  -67,  52,
>+    25,   -125, -65,  100,  -25,  123,  6,    11,   -123, -92,  -33,  126,
>+    -17,  -4,   29,   33,   127,  96,   3,    87,   -48,  -18,  -70,  123,
>+    58,   -127, -3,   -52,  -1,   -36,  -41,  127,  51,   -52,  -27,  46,
>+    -83,  57,   9,    126,  127,  94,   79,   -37,  -127, -40,  67,   52,
>+    82,   -66,  122,  -13,  -73,  127,  -8,   -80,  46,   -48,  4,    -54};
>+
>+const int8_t kHiddenGruBias[kHiddenLayerBiases] = {
>+    124, 125, -57, -126, 53,  123, 127,  -75, 68,  102, -2, 116,
>+    124, 127, 124, 125,  126, 123, -16,  48,  125, 126, 78, 85,
>+    11,  126, -30, -30,  -64, -3,  -105, -29, -17, 69,  63, 2,
>+    -32, -10, -62, 113,  -52, 112, -109, 112, 7,   -40, 73, 53,
>+    62,  6,   -2,  0,    0,   100, -16,  26,  -24, 56,  26, -10,
>+    -33, 41,  70,  109,  -29, 127, 34,   -66, 49,  53,  27, 62};
>+
>+const int8_t kOutputDenseWeights[kOutputLayerWeights] = {
>+    127,  127,  127, 127,  127,  20,  127,  -126, -126, -54, 14,  125,
>+    -126, -126, 127, -125, -126, 127, -127, -127, -57,  -30, 127, 80};
>+
>+const int8_t kOutputDenseBias[kOutputLayerOutputSize] = {-50};
>+
>+}  // namespace rnnoise
>diff --git a/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.h b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..d55e33ddad7b5e51d7bb773e3458694443719815
>--- /dev/null
>+++ b/Source/ThirdParty/libwebrtc/Source/third_party/rnnoise/src/rnn_vad_weights.h
>@@ -0,0 +1,37 @@
>+#ifndef THIRD_PARTY_RNNOISE_SRC_RNN_VAD_WEIGHTS_H_
>+#define THIRD_PARTY_RNNOISE_SRC_RNN_VAD_WEIGHTS_H_
>+
>+#include <cstdint>
>+#include <cstring>
>+
>+namespace rnnoise {
>+
>+// Weights scaling factor.
>+const float kWeightsScale = 1.f / 256.f;
>+
>+// Input layer (dense).
>+const size_t kInputLayerInputSize = 42;
>+const size_t kInputLayerOutputSize = 24;
>+const size_t kInputLayerWeights = kInputLayerInputSize * kInputLayerOutputSize;
>+extern const int8_t kInputDenseWeights[kInputLayerWeights];
>+extern const int8_t kInputDenseBias[kInputLayerOutputSize];
>+
>+// Hidden layer (GRU).
>+const size_t kHiddenLayerOutputSize = 24;
>+const size_t kHiddenLayerWeights =
>+    3 * kInputLayerOutputSize * kHiddenLayerOutputSize;
>+const size_t kHiddenLayerBiases = 3 * kHiddenLayerOutputSize;
>+extern const int8_t kHiddenGruWeights[kHiddenLayerWeights];
>+extern const int8_t kHiddenGruRecurrentWeights[kHiddenLayerWeights];
>+extern const int8_t kHiddenGruBias[kHiddenLayerBiases];
>+
>+// Output layer (dense).
>+const size_t kOutputLayerOutputSize = 1;
>+const size_t kOutputLayerWeights =
>+    kHiddenLayerOutputSize * kOutputLayerOutputSize;
>+extern const int8_t kOutputDenseWeights[kOutputLayerWeights];
>+extern const int8_t kOutputDenseBias[kOutputLayerOutputSize];
>+
>+}  // namespace rnnoise
>+
>+#endif  // THIRD_PARTY_RNNOISE_SRC_RNN_VAD_WEIGHTS_H_

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Attachments on bug 188751: 347534 | 347543 | 347615 | 347658