Attachment 349214 Details for Bug 189438 – Patch

[patch] Patch

0001-MediaCapabilities-Implement-MediaEngineConfiguration.patch (text/plain), 81.87 KB, created by Jer Noble on 2018-09-07 16:14:44 PDT

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Creator: Jer Noble

Created: 2018-09-07 16:14:44 PDT

Size: 81.87 KB

patch

obsolete

>From 22c6282d44a8e7de69618055d22b00166d6e3c76 Mon Sep 17 00:00:00 2001
>From: Jer Noble <jer.noble@apple.com>
>Date: Fri, 7 Sep 2018 16:14:01 -0700
>Subject: [MediaCapabilities] Implement MediaEngineConfigurationFactory
> registration https://bugs.webkit.org/show_bug.cgi?id=189438
>
>Reviewed by NOBODY (OOPS!).
>
>Implement a mechanism to register platform-specific MediaEngineConfigurationFactory methods, and a mechanism to iterate
>over those registered factories when createDecodingConfiguration() and createEncodingConfiguration() are called.
>
>The Factory has been radically simplified; the concept of MediaEngineDecodingConfiguration
>and MediaEngineEncodingConfiguration and its subclasess have been removed. Since the primary
>objects representing video and audio configurations are IDLDictionaries, the native objects
>are just structs full of POD types (and Strings). Since these have no dependencies on
>higher-level HTML concepts, they can be moved into platform/ and accessed from there. This
>patch also converts MediaCapabilitiesInfo to an Interface, so its implementation also can
>become a struct and live in platform/. The MediaEngineDecodingConfigurationMock and
>MediaEngineEncodingConfigurationMock have been consolidated in a single class which simply
>parses MediaDecodingConfiguration and MediaEncodingConifguration objects (now that they live
>in Platform) and return a MediaCapabilitiesInfo object (now that it does too).
>
>* Modules/mediacapabilities/MediaCapabilities.cpp:
>(WebCore::isValidVideoConfiguration):
>(WebCore::MediaCapabilities::decodingInfo):
>(WebCore::MediaCapabilities::encodingInfo):
>* Modules/mediacapabilities/MediaCapabilitiesInfo.h: Removed.
>* Modules/mediacapabilities/MediaCapabilitiesInfo.idl:
>* Modules/mediacapabilities/VideoConfiguration.idl:
>* Sources.txt:
>* WebCore.xcodeproj/project.pbxproj:
>* platform/MediaCapabilitiesInfo.h: Copied from Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h.
>* platform/mediacapabilities/AudioConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/AudioConfiguration.h.
>* platform/mediacapabilities/MediaConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaConfiguration.h.
>* platform/mediacapabilities/MediaDecodingConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaDecodingConfiguration.h.
>* platform/mediacapabilities/MediaDecodingType.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h.
>* platform/mediacapabilities/MediaEncodingConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaEncodingConfiguration.h.
>* platform/mediacapabilities/MediaEncodingType.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaEncodingType.h.
>* platform/mediacapabilities/MediaEngineConfiguration.cpp: Removed.
>* platform/mediacapabilities/MediaEngineConfiguration.h: Removed.
>* platform/mediacapabilities/MediaEngineConfigurationFactory.cpp:
>(WebCore::factories):
>(WebCore::MediaEngineConfigurationFactory::createDecodingConfiguration):
>(WebCore::MediaEngineConfigurationFactory::createEncodingConfiguration):
>* platform/mediacapabilities/MediaEngineConfigurationFactory.h:
>* platform/mediacapabilities/MediaEngineEncodingConfiguration.h: Removed.
>* platform/mediacapabilities/VideoConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/VideoConfiguration.h.
>* platform/mediastream/mac/DisplayCaptureSourceCocoa.h:
>* platform/mock/MediaEngineConfigurationFactoryMock.cpp: Added.
>(WebCore::canDecodeMedia):
>(WebCore::canSmoothlyDecodeMedia):
>(WebCore::canPowerEfficientlyDecodeMedia):
>(WebCore::canEncodeMedia):
>(WebCore::canSmoothlyEncodeMedia):
>(WebCore::canPowerEfficientlyEncodeMedia):
>(WebCore::MediaEngineConfigurationFactoryMock::createDecodingConfiguration):
>(WebCore::MediaEngineConfigurationFactoryMock::createEncodingConfiguration):
>* platform/mock/MediaEngineConfigurationFactoryMock.h: Renamed from Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h.
>* platform/mock/MediaEngineDecodingConfigurationMock.cpp: Removed.
>* platform/mock/MediaEngineDecodingConfigurationMock.h: Removed.
>* platform/mock/MediaEngineEncodingConfigurationMock.cpp: Removed.
>* platform/mock/MediaEngineEncodingConfigurationMock.h: Removed.
>---
> Source/WebCore/ChangeLog                      |  62 ++++++++
> .../mediacapabilities/MediaCapabilities.cpp   | 116 ++++----------
> .../mediacapabilities/MediaCapabilitiesInfo.h |  59 -------
> .../MediaCapabilitiesInfo.idl                 |  10 +-
> .../mediacapabilities/VideoConfiguration.idl  |   2 +-
> Source/WebCore/Sources.txt                    |   4 +-
> .../WebCore/WebCore.xcodeproj/project.pbxproj |  52 +++----
> .../WebCore/platform/MediaCapabilitiesInfo.h  |  36 +++++
> .../mediacapabilities/AudioConfiguration.h    |   4 +-
> .../mediacapabilities/MediaConfiguration.h    |   0
> .../MediaDecodingConfiguration.h              |   0
> .../mediacapabilities/MediaDecodingType.h     |   0
> .../MediaEncodingConfiguration.h              |   0
> .../mediacapabilities/MediaEncodingType.h     |   0
> .../MediaEngineConfiguration.cpp              |  87 -----------
> .../MediaEngineConfiguration.h                | 109 -------------
> .../MediaEngineConfigurationFactory.cpp       |  70 +++++++--
> .../MediaEngineConfigurationFactory.h         |  18 +--
> .../MediaEngineEncodingConfiguration.h        |  57 -------
> .../mediacapabilities/VideoConfiguration.h    |   2 +-
> .../mac/DisplayCaptureSourceCocoa.h           |   3 +
> .../MediaEngineConfigurationFactoryMock.cpp   | 146 ++++++++++++++++++
> .../MediaEngineConfigurationFactoryMock.h}    |  31 ++--
> .../MediaEngineDecodingConfigurationMock.cpp  |  88 -----------
> .../MediaEngineDecodingConfigurationMock.h    |  58 -------
> .../MediaEngineEncodingConfigurationMock.cpp  |  86 -----------
> .../MediaEngineEncodingConfigurationMock.h    |  58 -------
> 27 files changed, 387 insertions(+), 771 deletions(-)
> delete mode 100644 Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
> create mode 100644 Source/WebCore/platform/MediaCapabilitiesInfo.h
> rename Source/WebCore/{Modules => platform}/mediacapabilities/AudioConfiguration.h (95%)
> rename Source/WebCore/{Modules => platform}/mediacapabilities/MediaConfiguration.h (100%)
> rename Source/WebCore/{Modules => platform}/mediacapabilities/MediaDecodingConfiguration.h (100%)
> rename Source/WebCore/{Modules => platform}/mediacapabilities/MediaDecodingType.h (100%)
> rename Source/WebCore/{Modules => platform}/mediacapabilities/MediaEncodingConfiguration.h (100%)
> rename Source/WebCore/{Modules => platform}/mediacapabilities/MediaEncodingType.h (100%)
> delete mode 100644 Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp
> delete mode 100644 Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h
> delete mode 100644 Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h
> rename Source/WebCore/{Modules => platform}/mediacapabilities/VideoConfiguration.h (98%)
> create mode 100644 Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.cpp
> rename Source/WebCore/platform/{mediacapabilities/MediaEngineDecodingConfiguration.h => mock/MediaEngineConfigurationFactoryMock.h} (64%)
> delete mode 100644 Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp
> delete mode 100644 Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h
> delete mode 100644 Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp
> delete mode 100644 Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h
>
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 6297f4daf92..2c1129ce50d 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,65 @@
>+2018-09-07  Jer Noble  <jer.noble@apple.com>
>+
>+        [MediaCapabilities] Implement MediaEngineConfigurationFactory registration
>+        https://bugs.webkit.org/show_bug.cgi?id=189438
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Implement a mechanism to register platform-specific MediaEngineConfigurationFactory methods, and a mechanism to iterate
>+        over those registered factories when createDecodingConfiguration() and createEncodingConfiguration() are called.
>+
>+        The Factory has been radically simplified; the concept of MediaEngineDecodingConfiguration
>+        and MediaEngineEncodingConfiguration and its subclasess have been removed. Since the primary
>+        objects representing video and audio configurations are IDLDictionaries, the native objects
>+        are just structs full of POD types (and Strings). Since these have no dependencies on
>+        higher-level HTML concepts, they can be moved into platform/ and accessed from there. This
>+        patch also converts MediaCapabilitiesInfo to an Interface, so its implementation also can
>+        become a struct and live in platform/. The MediaEngineDecodingConfigurationMock and
>+        MediaEngineEncodingConfigurationMock have been consolidated in a single class which simply
>+        parses MediaDecodingConfiguration and MediaEncodingConifguration objects (now that they live
>+        in Platform) and return a MediaCapabilitiesInfo object (now that it does too).
>+
>+        * Modules/mediacapabilities/MediaCapabilities.cpp:
>+        (WebCore::isValidVideoConfiguration):
>+        (WebCore::MediaCapabilities::decodingInfo):
>+        (WebCore::MediaCapabilities::encodingInfo):
>+        * Modules/mediacapabilities/MediaCapabilitiesInfo.h: Removed.
>+        * Modules/mediacapabilities/MediaCapabilitiesInfo.idl:
>+        * Modules/mediacapabilities/VideoConfiguration.idl:
>+        * Sources.txt:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * platform/MediaCapabilitiesInfo.h: Copied from Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h.
>+        * platform/mediacapabilities/AudioConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/AudioConfiguration.h.
>+        * platform/mediacapabilities/MediaConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaConfiguration.h.
>+        * platform/mediacapabilities/MediaDecodingConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaDecodingConfiguration.h.
>+        * platform/mediacapabilities/MediaDecodingType.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h.
>+        * platform/mediacapabilities/MediaEncodingConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaEncodingConfiguration.h.
>+        * platform/mediacapabilities/MediaEncodingType.h: Renamed from Source/WebCore/Modules/mediacapabilities/MediaEncodingType.h.
>+        * platform/mediacapabilities/MediaEngineConfiguration.cpp: Removed.
>+        * platform/mediacapabilities/MediaEngineConfiguration.h: Removed.
>+        * platform/mediacapabilities/MediaEngineConfigurationFactory.cpp:
>+        (WebCore::factories):
>+        (WebCore::MediaEngineConfigurationFactory::createDecodingConfiguration):
>+        (WebCore::MediaEngineConfigurationFactory::createEncodingConfiguration):
>+        * platform/mediacapabilities/MediaEngineConfigurationFactory.h:
>+        * platform/mediacapabilities/MediaEngineEncodingConfiguration.h: Removed.
>+        * platform/mediacapabilities/VideoConfiguration.h: Renamed from Source/WebCore/Modules/mediacapabilities/VideoConfiguration.h.
>+        * platform/mediastream/mac/DisplayCaptureSourceCocoa.h:
>+        * platform/mock/MediaEngineConfigurationFactoryMock.cpp: Added.
>+        (WebCore::canDecodeMedia):
>+        (WebCore::canSmoothlyDecodeMedia):
>+        (WebCore::canPowerEfficientlyDecodeMedia):
>+        (WebCore::canEncodeMedia):
>+        (WebCore::canSmoothlyEncodeMedia):
>+        (WebCore::canPowerEfficientlyEncodeMedia):
>+        (WebCore::MediaEngineConfigurationFactoryMock::createDecodingConfiguration):
>+        (WebCore::MediaEngineConfigurationFactoryMock::createEncodingConfiguration):
>+        * platform/mock/MediaEngineConfigurationFactoryMock.h: Renamed from Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h.
>+        * platform/mock/MediaEngineDecodingConfigurationMock.cpp: Removed.
>+        * platform/mock/MediaEngineDecodingConfigurationMock.h: Removed.
>+        * platform/mock/MediaEngineEncodingConfigurationMock.cpp: Removed.
>+        * platform/mock/MediaEngineEncodingConfigurationMock.h: Removed.
>+
> 2018-09-05  Jer Noble  <jer.noble@apple.com>
> 
>         Don't pause playback when locking screen if video is being displayed on second screen.
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp b/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>index 51bf37dc3a6..b6da1232b22 100644
>--- a/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>+++ b/Source/WebCore/Modules/mediacapabilities/MediaCapabilities.cpp
>@@ -117,35 +117,7 @@ static bool isValidVideoConfiguration(const VideoConfiguration& configuration)
>     if (!isValidVideoMIMEType(ContentType(configuration.contentType)))
>         return false;
> 
>-    // 2. If none of the following is true, return false and abort these steps:
>-    //   o. Applying the rules for parsing floating-point number values to configurationâs framerate
>-    //      results in a number that is finite and greater than 0.
>-    bool ok = false;
>-    double framerate = configuration.framerate.toDouble(&ok);
>-    if (ok && std::isfinite(framerate) && framerate > 0)
>-        return true;
>-
>-    //   o. Configurationâs framerate contains one occurence of U+002F SLASH character (/) and the substrings
>-    //      before and after this character, when applying the rules for parsing floating-point number values
>-    //      results in a number that is finite and greater than 0.
>-    auto frameratePieces = configuration.framerate.split('/');
>-    if (frameratePieces.size() != 2)
>-        return false;
>-
>-    double numerator = frameratePieces[0].toDouble(&ok);
>-    if (!ok)
>-        return false;
>-
>-    double denominator = frameratePieces[1].toDouble(&ok);
>-    if (!ok)
>-        return false;
>-
>-    if (!std::isfinite(numerator) || !std::isfinite(denominator))
>-        return false;
>-
>-    framerate = numerator / denominator;
>-    if (!std::isfinite(framerate) || framerate <= 0)
>-        return false;
>+    // NOTE: We are purposefully eliding the section which parses a DOMString to a double.
> 
>     // 3. Return true.
>     return true;
>@@ -199,34 +171,22 @@ void MediaCapabilities::decodingInfo(MediaDecodingConfiguration&& configuration,
>     m_taskQueue.enqueueTask([configuration = WTFMove(configuration), promise = WTFMove(promise)] () mutable {
> 
>         // 2.2.3 If configuration is of type MediaDecodingConfiguration, run the following substeps:
>-        MediaEngineConfigurationFactory::DecodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto engineConfiguration) mutable {
>-            auto info = MediaCapabilitiesInfo::create();
>-
>-            if (engineConfiguration) {
>-                // 2.2.3.1. If the user agent is able to decode the media represented by
>-                // configuration, set supported to true. Otherwise set it to false.
>-                info->setSupported(engineConfiguration->canDecodeMedia());
>-
>-                if (info->supported()) {
>-                    // 2.2.3.2. If the user agent is able to decode the media represented by
>-                    // configuration at a pace that allows a smooth playback, set smooth to
>-                    // true. Otherwise set it to false.
>-                    info->setSmooth(engineConfiguration->canSmoothlyDecodeMedia());
>-
>-                    // 2.2.3.3. If the user agent is able to decode the media represented by
>-                    // configuration in a power efficient manner, set powerEfficient to
>-                    // true. Otherwise set it to false. The user agent SHOULD NOT take into
>-                    // consideration the current power source in order to determine the
>-                    // decoding power efficiency unless the deviceâs power source has side
>-                    // effects such as enabling different decoding modules.
>-                    info->setPowerEfficient(engineConfiguration->canPowerEfficientlyDecodeMedia());
>-                }
>-            }
>-
>-            promise->resolveWithNewlyCreated<IDLInterface<MediaCapabilitiesInfo>>(WTFMove(info));
>+        MediaEngineConfigurationFactory::DecodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto info) mutable {
>+            // 2.2.3.1. If the user agent is able to decode the media represented by
>+            // configuration, set supported to true. Otherwise set it to false.
>+            // 2.2.3.2. If the user agent is able to decode the media represented by
>+            // configuration at a pace that allows a smooth playback, set smooth to
>+            // true. Otherwise set it to false.
>+            // 2.2.3.3. If the user agent is able to decode the media represented by
>+            // configuration in a power efficient manner, set powerEfficient to
>+            // true. Otherwise set it to false. The user agent SHOULD NOT take into
>+            // consideration the current power source in order to determine the
>+            // decoding power efficiency unless the deviceâs power source has side
>+            // effects such as enabling different decoding modules.
>+            promise->resolve<IDLDictionary<MediaCapabilitiesInfo>>(WTFMove(info));
>         };
> 
>-        MediaEngineConfigurationFactory::createDecodingConfiguration(configuration, callback);
>+        MediaEngineConfigurationFactory::createDecodingConfiguration(WTFMove(configuration), WTFMove(callback));
>     });
> }
> 
>@@ -249,37 +209,25 @@ void MediaCapabilities::encodingInfo(MediaEncodingConfiguration&& configuration,
>     m_taskQueue.enqueueTask([configuration = WTFMove(configuration), promise = WTFMove(promise)] () mutable {
> 
>         // 2.2.4. If configuration is of type MediaEncodingConfiguration, run the following substeps:
>-        MediaEngineConfigurationFactory::EncodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto engineConfiguration) mutable {
>-            auto info = MediaCapabilitiesInfo::create();
>-
>-            if (engineConfiguration) {
>-                // 2.2.4.1. If the user agent is able to encode the media
>-                // represented by configuration, set supported to true. Otherwise
>-                // set it to false.
>-                info->setSupported(engineConfiguration->canEncodeMedia());
>-
>-                if (info->supported()) {
>-                    // 2.2.4.2. If the user agent is able to encode the media
>-                    // represented by configuration at a pace that allows encoding
>-                    // frames at the same pace as they are sent to the encoder, set
>-                    // smooth to true. Otherwise set it to false.
>-                    info->setSmooth(engineConfiguration->canSmoothlyEncodeMedia());
>-
>-                    // 2.2.4.3. If the user agent is able to encode the media
>-                    // represented by configuration in a power efficient manner, set
>-                    // powerEfficient to true. Otherwise set it to false. The user agent
>-                    // SHOULD NOT take into consideration the current power source in
>-                    // order to determine the encoding power efficiency unless the
>-                    // deviceâs power source has side effects such as enabling different
>-                    // encoding modules.
>-                    info->setPowerEfficient(engineConfiguration->canPowerEfficientlyEncodeMedia());
>-                }
>-            }
>-
>-            promise->resolveWithNewlyCreated<IDLInterface<MediaCapabilitiesInfo>>(WTFMove(info));
>+        MediaEngineConfigurationFactory::EncodingConfigurationCallback callback = [promise = WTFMove(promise)] (auto info) mutable {
>+            // 2.2.4.1. If the user agent is able to encode the media
>+            // represented by configuration, set supported to true. Otherwise
>+            // set it to false.
>+            // 2.2.4.2. If the user agent is able to encode the media
>+            // represented by configuration at a pace that allows encoding
>+            // frames at the same pace as they are sent to the encoder, set
>+            // smooth to true. Otherwise set it to false.
>+            // 2.2.4.3. If the user agent is able to encode the media
>+            // represented by configuration in a power efficient manner, set
>+            // powerEfficient to true. Otherwise set it to false. The user agent
>+            // SHOULD NOT take into consideration the current power source in
>+            // order to determine the encoding power efficiency unless the
>+            // deviceâs power source has side effects such as enabling different
>+            // encoding modules.
>+            promise->resolve<IDLDictionary<MediaCapabilitiesInfo>>(WTFMove(info));
>         };
> 
>-        MediaEngineConfigurationFactory::createEncodingConfiguration(configuration, callback);
>+        MediaEngineConfigurationFactory::createEncodingConfiguration(WTFMove(configuration), WTFMove(callback));
> 
>     });
> }
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h b/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
>deleted file mode 100644
>index af7adb8fc87..00000000000
>--- a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.h
>+++ /dev/null
>@@ -1,59 +0,0 @@
>-/*
>- * Copyright (C) 2017 Apple Inc. All rights reserved.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
>- */
>-
>-#pragma once
>-
>-#include <wtf/RefCounted.h>
>-
>-namespace WebCore {
>-
>-class MediaCapabilitiesInfo : public RefCounted<MediaCapabilitiesInfo> {
>-public:
>-
>-    static Ref<MediaCapabilitiesInfo> create()
>-    {
>-        return adoptRef(*new MediaCapabilitiesInfo());
>-    }
>-
>-    ~MediaCapabilitiesInfo() = default;
>-
>-    bool supported() const { return m_supported; }
>-    void setSupported(bool supported) { m_supported = supported; }
>-
>-    bool smooth() const { return m_smooth; }
>-    void setSmooth(bool smooth) { m_smooth = smooth; }
>-
>-    bool powerEfficient() const { return m_powerEfficient; }
>-    void setPowerEfficient(bool powerEfficient) { m_powerEfficient = powerEfficient; }
>-
>-private:
>-    MediaCapabilitiesInfo() = default;
>-
>-    bool m_supported { false };
>-    bool m_smooth { false };
>-    bool m_powerEfficient { false };
>-};
>-
>-}
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.idl b/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.idl
>index b2525e576cb..7ad0aba8fcf 100644
>--- a/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.idl
>+++ b/Source/WebCore/Modules/mediacapabilities/MediaCapabilitiesInfo.idl
>@@ -25,10 +25,10 @@
> 
> [
>     EnabledBySetting=MediaCapabilities,
>-    ImplementationLacksVTable
>+    JSGenerateToJSObject,
> ]
>-interface MediaCapabilitiesInfo {
>-  readonly attribute boolean supported;
>-  readonly attribute boolean smooth;
>-  readonly attribute boolean powerEfficient;
>+dictionary MediaCapabilitiesInfo {
>+  required boolean supported;
>+  required boolean smooth;
>+  required boolean powerEfficient;
> };
>diff --git a/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.idl b/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.idl
>index 627e6c9fb7f..01f244dbb4a 100644
>--- a/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.idl
>+++ b/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.idl
>@@ -28,5 +28,5 @@ dictionary VideoConfiguration {
>   required unsigned long width;
>   required unsigned long height;
>   required unsigned long long bitrate;
>-  required DOMString framerate;
>+  required double framerate;
> };
>diff --git a/Source/WebCore/Sources.txt b/Source/WebCore/Sources.txt
>index 5915736c516..8d2f9984228 100644
>--- a/Source/WebCore/Sources.txt
>+++ b/Source/WebCore/Sources.txt
>@@ -1727,7 +1727,6 @@ platform/graphics/transforms/TransformState.cpp
> platform/graphics/transforms/TransformationMatrix.cpp
> platform/graphics/transforms/TranslateTransformOperation.cpp
> 
>-platform/mediacapabilities/MediaEngineConfiguration.cpp
> platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
> 
> platform/mediastream/CaptureDeviceManager.cpp
>@@ -1751,8 +1750,7 @@ platform/mediastream/libwebrtc/LibWebRTCProvider.cpp
> 
> platform/mock/DeviceOrientationClientMock.cpp
> platform/mock/GeolocationClientMock.cpp
>-platform/mock/MediaEngineDecodingConfigurationMock.cpp
>-platform/mock/MediaEngineEncodingConfigurationMock.cpp
>+platform/mock/MediaEngineConfigurationFactoryMock.cpp
> platform/mock/MockRealtimeAudioSource.cpp
> platform/mock/MockRealtimeMediaSourceCenter.cpp
> platform/mock/MockRealtimeVideoSource.cpp
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 2876759b3dd..37ff0b0a9ec 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -10739,16 +10739,10 @@
> 		9A528E8217D7F52F00AA9518 /* FloatingObjects.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FloatingObjects.h; sourceTree = "<group>"; };
> 		9AB1F37E18E2489A00534743 /* CSSToLengthConversionData.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CSSToLengthConversionData.h; sourceTree = "<group>"; };
> 		9AB1F37F18E2489A00534743 /* CSSToLengthConversionData.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CSSToLengthConversionData.cpp; sourceTree = "<group>"; };
>-		9AC6F02121148F5000CBDA06 /* MediaEngineConfiguration.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = MediaEngineConfiguration.cpp; path = mediacapabilities/MediaEngineConfiguration.cpp; sourceTree = "<group>"; };
> 		9AC6F02221148F5100CBDA06 /* MediaEngineConfigurationFactory.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = MediaEngineConfigurationFactory.cpp; path = mediacapabilities/MediaEngineConfigurationFactory.cpp; sourceTree = "<group>"; };
>-		9AC6F02321148F5200CBDA06 /* MediaEngineConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineConfiguration.h; path = mediacapabilities/MediaEngineConfiguration.h; sourceTree = "<group>"; };
>-		9AC6F02421148F5300CBDA06 /* MediaEngineDecodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineDecodingConfiguration.h; path = mediacapabilities/MediaEngineDecodingConfiguration.h; sourceTree = "<group>"; };
> 		9AC6F02521148F5400CBDA06 /* MediaEngineConfigurationFactory.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineConfigurationFactory.h; path = mediacapabilities/MediaEngineConfigurationFactory.h; sourceTree = "<group>"; };
>-		9AC6F02621148F5500CBDA06 /* MediaEngineEncodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEngineEncodingConfiguration.h; path = mediacapabilities/MediaEngineEncodingConfiguration.h; sourceTree = "<group>"; };
>-		9AC6F02D21148F9F00CBDA06 /* MediaEngineDecodingConfigurationMock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MediaEngineDecodingConfigurationMock.cpp; sourceTree = "<group>"; };
>-		9AC6F02E21148FA100CBDA06 /* MediaEngineEncodingConfigurationMock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MediaEngineEncodingConfigurationMock.cpp; sourceTree = "<group>"; };
>-		9AC6F02F21148FA200CBDA06 /* MediaEngineDecodingConfigurationMock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEngineDecodingConfigurationMock.h; sourceTree = "<group>"; };
>-		9AC6F03021148FA400CBDA06 /* MediaEngineEncodingConfigurationMock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEngineEncodingConfigurationMock.h; sourceTree = "<group>"; };
>+		9AC6F02D21148F9F00CBDA06 /* MediaEngineConfigurationFactoryMock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MediaEngineConfigurationFactoryMock.cpp; sourceTree = "<group>"; };
>+		9AC6F02F21148FA200CBDA06 /* MediaEngineConfigurationFactoryMock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEngineConfigurationFactoryMock.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B73F64 /* ReadableByteStreamInternalsBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ReadableByteStreamInternalsBuiltins.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B764C9 /* StreamInternalsBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StreamInternalsBuiltins.h; sourceTree = "<group>"; };
> 		9B03D8061BB3110D00B764D8 /* ReadableStreamBuiltins.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ReadableStreamBuiltins.h; sourceTree = "<group>"; };
>@@ -13113,6 +13107,7 @@
> 		CCC2B51215F613060048CDD6 /* DeviceController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DeviceController.h; sourceTree = "<group>"; };
> 		CD063F801E23FA8900812BE3 /* InitDataRegistry.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = InitDataRegistry.cpp; sourceTree = "<group>"; };
> 		CD063F811E23FA8900812BE3 /* InitDataRegistry.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = InitDataRegistry.h; sourceTree = "<group>"; };
>+		CD0C8B582141C8CA0062F59D /* MediaCapabilitiesInfo.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MediaCapabilitiesInfo.h; sourceTree = "<group>"; };
> 		CD0EEE0A14743E34003EAFA2 /* AudioDestinationIOS.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AudioDestinationIOS.h; sourceTree = "<group>"; };
> 		CD0EEE0B14743E35003EAFA2 /* AudioDestinationIOS.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = AudioDestinationIOS.cpp; sourceTree = "<group>"; };
> 		CD127DEA14F3097900E84779 /* WebCoreFullScreenWindow.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebCoreFullScreenWindow.h; sourceTree = "<group>"; };
>@@ -13292,7 +13287,7 @@
> 		CDBD3D281FE85CB80012C545 /* VideoConfiguration.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = VideoConfiguration.idl; sourceTree = "<group>"; };
> 		CDBD3D291FE85CB90012C545 /* MediaConfiguration.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaConfiguration.idl; sourceTree = "<group>"; };
> 		CDBD3D2A1FE85CBA0012C545 /* MediaEncodingConfiguration.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaEncodingConfiguration.idl; sourceTree = "<group>"; };
>-		CDBD3D2B1FE85CBB0012C545 /* AudioConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AudioConfiguration.h; sourceTree = "<group>"; };
>+		CDBD3D2B1FE85CBB0012C545 /* AudioConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = AudioConfiguration.h; path = mediacapabilities/AudioConfiguration.h; sourceTree = "<group>"; };
> 		CDBD3D2C1FE85CBB0012C545 /* ScreenLuminance.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ScreenLuminance.h; sourceTree = "<group>"; };
> 		CDBD3D2D1FE85CBC0012C545 /* MediaEncodingType.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaEncodingType.idl; sourceTree = "<group>"; };
> 		CDBD3D2E1FE85CBC0012C545 /* MediaDecodingType.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaDecodingType.idl; sourceTree = "<group>"; };
>@@ -13301,17 +13296,16 @@
> 		CDBD3D311FE85CBE0012C545 /* NavigatorMediaCapabilities.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = NavigatorMediaCapabilities.idl; sourceTree = "<group>"; };
> 		CDBD3D321FE85CBE0012C545 /* MediaCapabilities.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaCapabilities.h; sourceTree = "<group>"; };
> 		CDBD3D331FE85CBE0012C545 /* MediaCapabilitiesInfo.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaCapabilitiesInfo.idl; sourceTree = "<group>"; };
>-		CDBD3D341FE85CBF0012C545 /* VideoConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = VideoConfiguration.h; sourceTree = "<group>"; };
>-		CDBD3D351FE85CBF0012C545 /* MediaConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaConfiguration.h; sourceTree = "<group>"; };
>-		CDBD3D361FE85CC00012C545 /* MediaDecodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaDecodingConfiguration.h; sourceTree = "<group>"; };
>-		CDBD3D371FE85CC00012C545 /* MediaEncodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEncodingConfiguration.h; sourceTree = "<group>"; };
>-		CDBD3D381FE85CC00012C545 /* MediaDecodingType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaDecodingType.h; sourceTree = "<group>"; };
>+		CDBD3D341FE85CBF0012C545 /* VideoConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = VideoConfiguration.h; path = mediacapabilities/VideoConfiguration.h; sourceTree = "<group>"; };
>+		CDBD3D351FE85CBF0012C545 /* MediaConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaConfiguration.h; path = mediacapabilities/MediaConfiguration.h; sourceTree = "<group>"; };
>+		CDBD3D361FE85CC00012C545 /* MediaDecodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaDecodingConfiguration.h; path = mediacapabilities/MediaDecodingConfiguration.h; sourceTree = "<group>"; };
>+		CDBD3D371FE85CC00012C545 /* MediaEncodingConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEncodingConfiguration.h; path = mediacapabilities/MediaEncodingConfiguration.h; sourceTree = "<group>"; };
>+		CDBD3D381FE85CC00012C545 /* MediaDecodingType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaDecodingType.h; path = mediacapabilities/MediaDecodingType.h; sourceTree = "<group>"; };
> 		CDBD3D391FE85CC10012C545 /* NavigatorMediaCapabilities.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NavigatorMediaCapabilities.h; sourceTree = "<group>"; };
> 		CDBD3D3A1FE85CC10012C545 /* ScreenColorGamut.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ScreenColorGamut.h; sourceTree = "<group>"; };
> 		CDBD3D3B1FE85CC20012C545 /* MediaDecodingConfiguration.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = MediaDecodingConfiguration.idl; sourceTree = "<group>"; };
> 		CDBD3D3C1FE85CC20012C545 /* AudioConfiguration.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = AudioConfiguration.idl; sourceTree = "<group>"; };
>-		CDBD3D3D1FE85CC30012C545 /* MediaCapabilitiesInfo.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaCapabilitiesInfo.h; sourceTree = "<group>"; };
>-		CDBD3D3E1FE85CC30012C545 /* MediaEncodingType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaEncodingType.h; sourceTree = "<group>"; };
>+		CDBD3D3E1FE85CC30012C545 /* MediaEncodingType.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = MediaEncodingType.h; path = mediacapabilities/MediaEncodingType.h; sourceTree = "<group>"; };
> 		CDBD3D3F1FE85CC30012C545 /* ScreenColorGamut.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = ScreenColorGamut.idl; sourceTree = "<group>"; };
> 		CDBEAEAA19D92B6C00BEBA88 /* MediaSelectionGroupAVFObjC.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = MediaSelectionGroupAVFObjC.mm; sourceTree = "<group>"; };
> 		CDBEAEAB19D92B6C00BEBA88 /* MediaSelectionGroupAVFObjC.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaSelectionGroupAVFObjC.h; sourceTree = "<group>"; };
>@@ -18741,10 +18735,8 @@
> 				CDF2B005182053DF00F2B424 /* mediasource */,
> 				59309A1011F4AE5800250603 /* DeviceOrientationClientMock.cpp */,
> 				59309A1211F4AE6A00250603 /* DeviceOrientationClientMock.h */,
>-				9AC6F02D21148F9F00CBDA06 /* MediaEngineDecodingConfigurationMock.cpp */,
>-				9AC6F02F21148FA200CBDA06 /* MediaEngineDecodingConfigurationMock.h */,
>-				9AC6F02E21148FA100CBDA06 /* MediaEngineEncodingConfigurationMock.cpp */,
>-				9AC6F03021148FA400CBDA06 /* MediaEngineEncodingConfigurationMock.h */,
>+				9AC6F02D21148F9F00CBDA06 /* MediaEngineConfigurationFactoryMock.cpp */,
>+				9AC6F02F21148FA200CBDA06 /* MediaEngineConfigurationFactoryMock.h */,
> 				077B64141B95F703003E9AD5 /* MediaPlaybackTargetMock.cpp */,
> 				077B64151B95F703003E9AD5 /* MediaPlaybackTargetMock.h */,
> 				077B64101B94F12E003E9AD5 /* MediaPlaybackTargetPickerMock.cpp */,
>@@ -21157,12 +21149,16 @@
> 		9AC6F02021148F1E00CBDA06 /* mediacapabilities */ = {
> 			isa = PBXGroup;
> 			children = (
>-				9AC6F02121148F5000CBDA06 /* MediaEngineConfiguration.cpp */,
>-				9AC6F02321148F5200CBDA06 /* MediaEngineConfiguration.h */,
>+				CDBD3D2B1FE85CBB0012C545 /* AudioConfiguration.h */,
>+				CDBD3D351FE85CBF0012C545 /* MediaConfiguration.h */,
>+				CDBD3D381FE85CC00012C545 /* MediaDecodingType.h */,
>+				CDBD3D341FE85CBF0012C545 /* VideoConfiguration.h */,
>+				CDBD3D361FE85CC00012C545 /* MediaDecodingConfiguration.h */,
>+				CDBD3D371FE85CC00012C545 /* MediaEncodingConfiguration.h */,
>+				CDBD3D3E1FE85CC30012C545 /* MediaEncodingType.h */,
> 				9AC6F02221148F5100CBDA06 /* MediaEngineConfigurationFactory.cpp */,
> 				9AC6F02521148F5400CBDA06 /* MediaEngineConfigurationFactory.h */,
>-				9AC6F02421148F5300CBDA06 /* MediaEngineDecodingConfiguration.h */,
>-				9AC6F02621148F5500CBDA06 /* MediaEngineEncodingConfiguration.h */,
>+				CD0C8B582141C8CA0062F59D /* MediaCapabilitiesInfo.h */,
> 			);
> 			name = mediacapabilities;
> 			sourceTree = "<group>";
>@@ -24739,22 +24735,15 @@
> 		CDBD3D271FE85C920012C545 /* mediacapabilities */ = {
> 			isa = PBXGroup;
> 			children = (
>-				CDBD3D2B1FE85CBB0012C545 /* AudioConfiguration.h */,
> 				CDBD3D3C1FE85CC20012C545 /* AudioConfiguration.idl */,
> 				CDA130BD1FEB332D00F53254 /* MediaCapabilities.cpp */,
> 				CDBD3D321FE85CBE0012C545 /* MediaCapabilities.h */,
> 				CDBD3D2F1FE85CBC0012C545 /* MediaCapabilities.idl */,
>-				CDBD3D3D1FE85CC30012C545 /* MediaCapabilitiesInfo.h */,
> 				CDBD3D331FE85CBE0012C545 /* MediaCapabilitiesInfo.idl */,
>-				CDBD3D351FE85CBF0012C545 /* MediaConfiguration.h */,
> 				CDBD3D291FE85CB90012C545 /* MediaConfiguration.idl */,
>-				CDBD3D361FE85CC00012C545 /* MediaDecodingConfiguration.h */,
> 				CDBD3D3B1FE85CC20012C545 /* MediaDecodingConfiguration.idl */,
>-				CDBD3D381FE85CC00012C545 /* MediaDecodingType.h */,
> 				CDBD3D2E1FE85CBC0012C545 /* MediaDecodingType.idl */,
>-				CDBD3D371FE85CC00012C545 /* MediaEncodingConfiguration.h */,
> 				CDBD3D2A1FE85CBA0012C545 /* MediaEncodingConfiguration.idl */,
>-				CDBD3D3E1FE85CC30012C545 /* MediaEncodingType.h */,
> 				CDBD3D2D1FE85CBC0012C545 /* MediaEncodingType.idl */,
> 				CDA130BB1FEB332C00F53254 /* NavigatorMediaCapabilities.cpp */,
> 				CDBD3D391FE85CC10012C545 /* NavigatorMediaCapabilities.h */,
>@@ -24763,7 +24752,6 @@
> 				CDBD3D3F1FE85CC30012C545 /* ScreenColorGamut.idl */,
> 				CDBD3D2C1FE85CBB0012C545 /* ScreenLuminance.h */,
> 				CDBD3D301FE85CBD0012C545 /* ScreenLuminance.idl */,
>-				CDBD3D341FE85CBF0012C545 /* VideoConfiguration.h */,
> 				CDBD3D281FE85CB80012C545 /* VideoConfiguration.idl */,
> 			);
> 			path = mediacapabilities;
>diff --git a/Source/WebCore/platform/MediaCapabilitiesInfo.h b/Source/WebCore/platform/MediaCapabilitiesInfo.h
>new file mode 100644
>index 00000000000..2dde787d7b8
>--- /dev/null
>+++ b/Source/WebCore/platform/MediaCapabilitiesInfo.h
>@@ -0,0 +1,36 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
>+ */
>+
>+#pragma once
>+
>+namespace WebCore {
>+    
>+struct MediaCapabilitiesInfo {
>+    bool supported { false };
>+    bool smooth { false };
>+    bool powerEfficient { false };
>+};
>+    
>+}
>diff --git a/Source/WebCore/Modules/mediacapabilities/AudioConfiguration.h b/Source/WebCore/platform/mediacapabilities/AudioConfiguration.h
>similarity index 95%
>rename from Source/WebCore/Modules/mediacapabilities/AudioConfiguration.h
>rename to Source/WebCore/platform/mediacapabilities/AudioConfiguration.h
>index 5eff359b499..b760af378a5 100644
>--- a/Source/WebCore/Modules/mediacapabilities/AudioConfiguration.h
>+++ b/Source/WebCore/platform/mediacapabilities/AudioConfiguration.h
>@@ -33,8 +33,8 @@ namespace WebCore {
> struct AudioConfiguration {
>     String contentType;
>     String channels;
>-    std::optional<uint64_t> bitrate;
>-    std::optional<uint32_t> samplerate;
>+    uint64_t bitrate;
>+    uint32_t samplerate;
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaConfiguration.h
>similarity index 100%
>rename from Source/WebCore/Modules/mediacapabilities/MediaConfiguration.h
>rename to Source/WebCore/platform/mediacapabilities/MediaConfiguration.h
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaDecodingConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaDecodingConfiguration.h
>similarity index 100%
>rename from Source/WebCore/Modules/mediacapabilities/MediaDecodingConfiguration.h
>rename to Source/WebCore/platform/mediacapabilities/MediaDecodingConfiguration.h
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h b/Source/WebCore/platform/mediacapabilities/MediaDecodingType.h
>similarity index 100%
>rename from Source/WebCore/Modules/mediacapabilities/MediaDecodingType.h
>rename to Source/WebCore/platform/mediacapabilities/MediaDecodingType.h
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaEncodingConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEncodingConfiguration.h
>similarity index 100%
>rename from Source/WebCore/Modules/mediacapabilities/MediaEncodingConfiguration.h
>rename to Source/WebCore/platform/mediacapabilities/MediaEncodingConfiguration.h
>diff --git a/Source/WebCore/Modules/mediacapabilities/MediaEncodingType.h b/Source/WebCore/platform/mediacapabilities/MediaEncodingType.h
>similarity index 100%
>rename from Source/WebCore/Modules/mediacapabilities/MediaEncodingType.h
>rename to Source/WebCore/platform/mediacapabilities/MediaEncodingType.h
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp
>deleted file mode 100644
>index 30957ff15a5..00000000000
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.cpp
>+++ /dev/null
>@@ -1,87 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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 "config.h"
>-#include "MediaEngineConfiguration.h"
>-
>-namespace WebCore {
>-
>-MediaEngineVideoConfiguration::MediaEngineVideoConfiguration(VideoConfiguration&& config)
>-    : m_type(config.contentType)
>-    , m_width(config.width)
>-    , m_height(config.height)
>-    , m_bitrate(config.bitrate)
>-    , m_frameRateNumerator(0)
>-    , m_frameRateDenominator(1)
>-{
>-    bool ok = false;
>-    m_frameRateNumerator = config.framerate.toDouble(&ok);
>-    if (ok)
>-        return;
>-
>-    auto frameratePieces = config.framerate.split('/');
>-    if (frameratePieces.size() != 2)
>-        return;
>-
>-    double numerator = frameratePieces[0].toDouble(&ok);
>-    if (!ok || !numerator)
>-        return;
>-
>-    double denominator = frameratePieces[1].toDouble(&ok);
>-    if (!ok || !denominator)
>-        return;
>-
>-    if (!std::isfinite(numerator) || !std::isfinite(denominator))
>-        return;
>-
>-    m_frameRateNumerator = numerator;
>-    m_frameRateDenominator = denominator;
>-}
>-
>-MediaEngineAudioConfiguration::MediaEngineAudioConfiguration(AudioConfiguration&& config)
>-    : m_type(config.contentType)
>-    , m_channels(config.channels)
>-    , m_bitrate(0)
>-    , m_samplerate(0)
>-{
>-    if (config.bitrate)
>-        m_bitrate = config.bitrate.value();
>-
>-    if (config.samplerate)
>-        m_samplerate = config.samplerate.value();
>-}
>-
>-MediaEngineConfiguration::MediaEngineConfiguration(MediaConfiguration&& config)
>-{
>-    if (config.audio)
>-        m_audioConfiguration = MediaEngineAudioConfiguration::create(config.audio.value());
>-
>-    if (config.video)
>-        m_videoConfiguration = MediaEngineVideoConfiguration::create(config.video.value());
>-}
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h
>deleted file mode 100644
>index aa3477e62d8..00000000000
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineConfiguration.h
>+++ /dev/null
>@@ -1,109 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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.
>- */
>-
>-#pragma once
>-
>-#include "AudioConfiguration.h"
>-#include "ContentType.h"
>-#include "IntSize.h"
>-#include "MediaConfiguration.h"
>-#include "VideoConfiguration.h"
>-
>-#include <wtf/Forward.h>
>-
>-namespace WebCore {
>-class MediaEngineConfiguration;
>-
>-class MediaEngineVideoConfiguration : public RefCounted<MediaEngineVideoConfiguration> {
>-public:
>-    static Ref<MediaEngineVideoConfiguration> create(VideoConfiguration& config)
>-    {
>-        return adoptRef(*new MediaEngineVideoConfiguration(WTFMove(config)));
>-    };
>-
>-    ContentType contentType() const { return m_type; };
>-    IntSize size() const { return IntSize(m_width, m_height); };
>-    uint64_t bitrate() const { return m_bitrate; };
>-    double framerate() const { return m_frameRateNumerator / m_frameRateDenominator; };
>-
>-private:
>-    MediaEngineVideoConfiguration(VideoConfiguration&&);
>-
>-    ContentType m_type;
>-    uint32_t m_width;
>-    uint32_t m_height;
>-    uint64_t m_bitrate;
>-    double m_frameRateNumerator;
>-    double m_frameRateDenominator;
>-};
>-
>-class MediaEngineAudioConfiguration : public RefCounted<MediaEngineAudioConfiguration> {
>-public:
>-    static Ref<MediaEngineAudioConfiguration> create(AudioConfiguration& config)
>-    {
>-        return adoptRef(*new MediaEngineAudioConfiguration(WTFMove(config)));
>-    };
>-
>-    ContentType contentType() const { return m_type; };
>-    String channels() const { return m_channels; };
>-    uint64_t bitrate() const { return m_bitrate; };
>-    uint32_t samplerate() const { return m_samplerate; };
>-
>-private:
>-    MediaEngineAudioConfiguration(AudioConfiguration&&);
>-
>-    ContentType m_type;
>-    String m_channels;
>-    uint64_t m_bitrate;
>-    uint32_t m_samplerate;
>-};
>-
>-class MediaEngineConfiguration : public RefCounted<MediaEngineConfiguration> {
>-public:
>-    MediaEngineConfiguration(MediaConfiguration&&);
>-    virtual ~MediaEngineConfiguration() = default;
>-
>-    enum class ImplementationType {
>-        Mock,
>-    };
>-
>-    virtual ImplementationType implementationType() const = 0;
>-
>-    RefPtr<MediaEngineAudioConfiguration> audioConfiguration() const { return m_audioConfiguration; };
>-    RefPtr<MediaEngineVideoConfiguration> videoConfiguration() const { return m_videoConfiguration; };
>-
>-private:
>-    RefPtr<MediaEngineAudioConfiguration> m_audioConfiguration;
>-    RefPtr<MediaEngineVideoConfiguration> m_videoConfiguration;
>-};
>-
>-} // namespace WebCore
>-
>-#define SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(ToValueTypeName, ImplementationTypeName) \
>-    SPECIALIZE_TYPE_TRAITS_BEGIN(ToValueTypeName)                       \
>-    static bool isType(const WebCore::MediaEngineConfiguration& config) { return config.implementationType() == ImplementationTypeName; } \
>-    SPECIALIZE_TYPE_TRAITS_END()
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>index b15388573d4..8a6d8904dcd 100644
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.cpp
>@@ -28,11 +28,13 @@
> #include "config.h"
> #include "MediaEngineConfigurationFactory.h"
> 
>-#include "DeprecatedGlobalSettings.h"
>-#include "MediaEngineDecodingConfiguration.h"
>-#include "MediaEngineDecodingConfigurationMock.h"
>-#include "MediaEngineEncodingConfiguration.h"
>-#include "MediaEngineEncodingConfigurationMock.h"
>+#include "MediaCapabilitiesInfo.h"
>+#include "MediaDecodingConfiguration.h"
>+#include "MediaEncodingConfiguration.h"
>+#include "MediaEngineConfigurationFactoryMock.h"
>+#include "MediaPlayerPrivateAVFoundationObjC.h"
>+#include <wtf/NeverDestroyed.h>
>+#include <wtf/Vector.h>
> 
> namespace WebCore {
> 
>@@ -42,22 +44,68 @@ static bool& mockEnabled()
>     return enabled;
> }
> 
>-void MediaEngineConfigurationFactory::createDecodingConfiguration(MediaDecodingConfiguration& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback& callback)
>+struct MediaEngineFactory {
>+    void(*createDecodingConfiguration)(MediaDecodingConfiguration&, MediaEngineConfigurationFactory::DecodingConfigurationCallback&&);
>+    void(*createEncodingConfiguration)(MediaEncodingConfiguration&, MediaEngineConfigurationFactory::EncodingConfigurationCallback&&);
>+};
>+
>+using FactoryVector = Vector<MediaEngineFactory>;
>+static const FactoryVector& factories()
>+{
>+    static NeverDestroyed<FactoryVector> factories = makeNeverDestroyed(FactoryVector({ }));
>+    return factories;
>+}
>+
>+void MediaEngineConfigurationFactory::createDecodingConfiguration(MediaDecodingConfiguration&& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback&& callback)
> {
>     if (mockEnabled()) {
>-        MediaEngineDecodingConfigurationMock::create(config, callback);
>+        MediaEngineConfigurationFactoryMock::createDecodingConfiguration(config, WTFMove(callback));
>         return;
>     }
>-    callback(nullptr);
>+
>+    auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto config, auto&& callback) mutable {
>+        if (nextFactory == factories().end()) {
>+            callback({ });
>+            return;
>+        }
>+
>+        auto& factory = *nextFactory;
>+        factory.createDecodingConfiguration(config, [factoryCallback, nextFactory, config, callback = WTFMove(callback)] (auto&& info) mutable {
>+            if (info.supported) {
>+                callback(WTFMove(info));
>+                return;
>+            }
>+
>+            factoryCallback(factoryCallback, ++nextFactory, config, WTFMove(callback));
>+        });
>+    };
>+    factoryCallback(factoryCallback, factories().begin(), config, WTFMove(callback));
> }
> 
>-void MediaEngineConfigurationFactory::createEncodingConfiguration(MediaEncodingConfiguration& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback& callback)
>+void MediaEngineConfigurationFactory::createEncodingConfiguration(MediaEncodingConfiguration&& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback&& callback)
> {
>     if (mockEnabled()) {
>-        MediaEngineEncodingConfigurationMock::create(config, callback);
>+        MediaEngineConfigurationFactoryMock::createEncodingConfiguration(config, WTFMove(callback));
>         return;
>     }
>-    callback(nullptr);
>+
>+    auto factoryCallback = [] (auto factoryCallback, auto nextFactory, auto config, auto&& callback) mutable {
>+        if (nextFactory == factories().end()) {
>+            callback({ });
>+            return;
>+        }
>+
>+        auto& factory = *nextFactory;
>+        factory.createEncodingConfiguration(config, [factoryCallback, nextFactory, config, callback = WTFMove(callback)] (auto&& info) mutable {
>+            if (info.supported) {
>+                callback(WTFMove(info));
>+                return;
>+            }
>+
>+            factoryCallback(factoryCallback, ++nextFactory, config, WTFMove(callback));
>+        });
>+    };
>+    factoryCallback(factoryCallback, factories().begin(), config, WTFMove(callback));
> }
> 
> void MediaEngineConfigurationFactory::enableMock()
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h
>index 7eecb6365c5..4b51e95bdd9 100644
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h
>+++ b/Source/WebCore/platform/mediacapabilities/MediaEngineConfigurationFactory.h
>@@ -27,21 +27,21 @@
> 
> #pragma once
> 
>-#include "MediaCapabilities.h"
>-#include "MediaDecodingConfiguration.h"
>-#include "MediaEngineDecodingConfiguration.h"
>-#include "MediaEngineEncodingConfiguration.h"
>-#include <wtf/Forward.h>
>+#include <wtf/Function.h>
> 
> namespace WebCore {
> 
>+struct MediaCapabilitiesInfo;
>+struct MediaDecodingConfiguration;
>+struct MediaEncodingConfiguration;
>+
> class MediaEngineConfigurationFactory {
> public:
>-    using DecodingConfigurationCallback = WTF::Function<void(RefPtr<MediaEngineDecodingConfiguration>)>;
>-    using EncodingConfigurationCallback = WTF::Function<void(RefPtr<MediaEngineEncodingConfiguration>)>;
>+    using DecodingConfigurationCallback = WTF::Function<void(MediaCapabilitiesInfo&&)>;
>+    using EncodingConfigurationCallback = WTF::Function<void(MediaCapabilitiesInfo&&)>;
> 
>-    static void createDecodingConfiguration(MediaDecodingConfiguration&, DecodingConfigurationCallback&);
>-    static void createEncodingConfiguration(MediaEncodingConfiguration&, EncodingConfigurationCallback&);
>+    static void createDecodingConfiguration(MediaDecodingConfiguration&&, DecodingConfigurationCallback&&);
>+    static void createEncodingConfiguration(MediaEncodingConfiguration&&, EncodingConfigurationCallback&&);
> 
>     WEBCORE_EXPORT static void enableMock();
>     WEBCORE_EXPORT static void disableMock();
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h b/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h
>deleted file mode 100644
>index 2f763aa75f1..00000000000
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineEncodingConfiguration.h
>+++ /dev/null
>@@ -1,57 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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.
>- */
>-
>-#pragma once
>-
>-#include "MediaEncodingConfiguration.h"
>-#include "MediaEngineConfiguration.h"
>-
>-#include <wtf/Forward.h>
>-
>-namespace WebCore {
>-
>-class MediaEngineEncodingConfiguration : public MediaEngineConfiguration {
>-public:
>-    MediaEngineEncodingConfiguration(MediaEncodingConfiguration&& config)
>-        : MediaEngineConfiguration(reinterpret_cast<MediaConfiguration&&>(config))
>-        , m_encodingType(config.type)
>-    {
>-    }
>-
>-    virtual ~MediaEngineEncodingConfiguration() = default;
>-
>-    virtual bool canEncodeMedia() { return false; };
>-    virtual bool canSmoothlyEncodeMedia() { return false; };
>-    virtual bool canPowerEfficientlyEncodeMedia() { return false; };
>-
>-    MediaEncodingType encodingType() const { return m_encodingType; };
>-
>-private:
>-    MediaEncodingType m_encodingType;
>-};
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.h b/Source/WebCore/platform/mediacapabilities/VideoConfiguration.h
>similarity index 98%
>rename from Source/WebCore/Modules/mediacapabilities/VideoConfiguration.h
>rename to Source/WebCore/platform/mediacapabilities/VideoConfiguration.h
>index e2428b2d823..a378fd309f6 100644
>--- a/Source/WebCore/Modules/mediacapabilities/VideoConfiguration.h
>+++ b/Source/WebCore/platform/mediacapabilities/VideoConfiguration.h
>@@ -34,7 +34,7 @@ struct VideoConfiguration {
>     uint32_t width;
>     uint32_t height;
>     uint64_t bitrate;
>-    String framerate;
>+    double framerate;
> };
> 
> }
>diff --git a/Source/WebCore/platform/mediastream/mac/DisplayCaptureSourceCocoa.h b/Source/WebCore/platform/mediastream/mac/DisplayCaptureSourceCocoa.h
>index 7877e0bac49..4ba1b8febfb 100644
>--- a/Source/WebCore/platform/mediastream/mac/DisplayCaptureSourceCocoa.h
>+++ b/Source/WebCore/platform/mediastream/mac/DisplayCaptureSourceCocoa.h
>@@ -34,6 +34,9 @@
> #include <wtf/RunLoop.h>
> #include <wtf/text/WTFString.h>
> 
>+typedef struct __CVBuffer *CVPixelBufferRef;
>+typedef struct __IOSurface *IOSurfaceRef;
>+
> namespace WTF {
> class MediaTime;
> }
>diff --git a/Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.cpp b/Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.cpp
>new file mode 100644
>index 00000000000..3ca1e4e3938
>--- /dev/null
>+++ b/Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.cpp
>@@ -0,0 +1,146 @@
>+/*
>+ * Copyright (C) 2018 Igalia S.L.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ *
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. 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
>+ * HOLDER 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 "config.h"
>+#include "MediaEngineConfigurationFactoryMock.h"
>+
>+#include "ContentType.h"
>+#include "MediaCapabilitiesInfo.h"
>+#include "MediaDecodingConfiguration.h"
>+#include "MediaEncodingConfiguration.h"
>+
>+namespace WebCore {
>+
>+static bool canDecodeMedia(const MediaDecodingConfiguration& configuration)
>+{
>+    // The mock implementation supports only local file playback.
>+    if (configuration.type == MediaDecodingType::MediaSource)
>+        return false;
>+
>+    // Maxing out video decoding support at 720P.
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && videoConfig->width > 1280 && videoConfig->height > 720)
>+        return false;
>+
>+    // Audio decoding support limited to audio/mp4.
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig)
>+        return ContentType(audioConfig->contentType).containerType() == "audio/mp4";
>+
>+    return true;
>+}
>+
>+static bool canSmoothlyDecodeMedia(const MediaDecodingConfiguration& configuration)
>+{
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && videoConfig->framerate > 30)
>+        return false;
>+
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig)
>+        return audioConfig->channels == "2";
>+
>+    return true;
>+}
>+
>+static bool canPowerEfficientlyDecodeMedia(const MediaDecodingConfiguration& configuration)
>+{
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && ContentType(videoConfig->contentType).containerType() != "video/mp4")
>+        return false;
>+
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig)
>+        return audioConfig->bitrate <= 1000;
>+
>+    return true;
>+}
>+
>+static bool canEncodeMedia(const MediaEncodingConfiguration& configuration)
>+{
>+    // The mock implementation supports only local file playback.
>+    if (configuration.type == MediaEncodingType::Record)
>+        return false;
>+
>+    // Maxing out video encoding support at 720P.
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && videoConfig->width > 1280 && videoConfig->height > 720)
>+        return false;
>+
>+    // Audio encoding support limited to audio/mp4.
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig && ContentType(audioConfig->contentType).containerType() != "audio/mp4")
>+        return false;
>+
>+    return true;
>+}
>+
>+static bool canSmoothlyEncodeMedia(const MediaEncodingConfiguration& configuration)
>+{
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && videoConfig->framerate > 30)
>+        return false;
>+
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig && audioConfig->channels != "2")
>+        return false;
>+
>+    return true;
>+}
>+
>+static bool canPowerEfficientlyEncodeMedia(const MediaEncodingConfiguration& configuration)
>+{
>+    auto videoConfig = configuration.video;
>+    if (videoConfig && ContentType(videoConfig->contentType).containerType() != "video/mp4")
>+        return false;
>+
>+    auto audioConfig = configuration.audio;
>+    if (audioConfig && audioConfig->bitrate > 1000)
>+        return false;
>+
>+    return true;
>+}
>+
>+void MediaEngineConfigurationFactoryMock::createDecodingConfiguration(MediaDecodingConfiguration& configuration, DecodingConfigurationCallback&& callback)
>+{
>+    if (!canDecodeMedia(configuration)) {
>+        callback({ });
>+        return;
>+    }
>+    callback({ true, canSmoothlyDecodeMedia(configuration), canPowerEfficientlyDecodeMedia(configuration) });
>+}
>+
>+void MediaEngineConfigurationFactoryMock::createEncodingConfiguration(MediaEncodingConfiguration& configuration, EncodingConfigurationCallback&& callback)
>+{
>+    if (!canEncodeMedia(configuration)) {
>+        callback({ });
>+        return;
>+    }
>+    callback({ true, canSmoothlyEncodeMedia(configuration), canPowerEfficientlyEncodeMedia(configuration) });
>+}
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h b/Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.h
>similarity index 64%
>rename from Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h
>rename to Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.h
>index cdac105401a..64951006c7c 100644
>--- a/Source/WebCore/platform/mediacapabilities/MediaEngineDecodingConfiguration.h
>+++ b/Source/WebCore/platform/mock/MediaEngineConfigurationFactoryMock.h
>@@ -27,31 +27,20 @@
> 
> #pragma once
> 
>-#include "MediaDecodingConfiguration.h"
>-#include "MediaEngineConfiguration.h"
>-
>-#include <wtf/Forward.h>
>+#include <wtf/Function.h>
> 
> namespace WebCore {
> 
>-class MediaEngineDecodingConfiguration : public MediaEngineConfiguration {
>-public:
>-    MediaEngineDecodingConfiguration(MediaDecodingConfiguration&& config)
>-        : MediaEngineConfiguration(reinterpret_cast<MediaConfiguration&&>(config))
>-        , m_decodingType(config.type)
>-    {
>-    }
>-
>-    virtual ~MediaEngineDecodingConfiguration() = default;
>-
>-    virtual bool canDecodeMedia() { return false; };
>-    virtual bool canSmoothlyDecodeMedia() { return false; };
>-    virtual bool canPowerEfficientlyDecodeMedia() { return false; };
>+struct MediaCapabilitiesInfo;
>+struct MediaDecodingConfiguration;
>+struct MediaEncodingConfiguration;
> 
>-    MediaDecodingType decodingType() const { return m_decodingType; };
>+struct MediaEngineConfigurationFactoryMock {
>+    using DecodingConfigurationCallback = WTF::Function<void(MediaCapabilitiesInfo&&)>;
>+    using EncodingConfigurationCallback = WTF::Function<void(MediaCapabilitiesInfo&&)>;
> 
>-private:
>-    MediaDecodingType m_decodingType;
>+    static void createDecodingConfiguration(MediaDecodingConfiguration&, DecodingConfigurationCallback&&);
>+    static void createEncodingConfiguration(MediaEncodingConfiguration&, EncodingConfigurationCallback&&);
> };
> 
>-} // namespace WebCore
>+}
>diff --git a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp
>deleted file mode 100644
>index 301ce19d05b..00000000000
>--- a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.cpp
>+++ /dev/null
>@@ -1,88 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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 "config.h"
>-#include "MediaEngineDecodingConfigurationMock.h"
>-
>-#include "ContentType.h"
>-#include "IntSize.h"
>-
>-namespace WebCore {
>-
>-bool MediaEngineDecodingConfigurationMock::canDecodeMedia()
>-{
>-    // The mock implementation supports only local file playback.
>-    if (decodingType() == MediaDecodingType::MediaSource)
>-        return false;
>-
>-    // Maxing out video decoding support at 720P.
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig) {
>-        IntSize size = videoConfig->size();
>-        if (size.width() > 1280 && size.height() > 720)
>-            return false;
>-    }
>-
>-    // Audio decoding support limited to audio/mp4.
>-    auto audioConfig = audioConfiguration();
>-    if (audioConfig)
>-        return audioConfig->contentType().containerType() == "audio/mp4";
>-
>-    return true;
>-}
>-
>-bool MediaEngineDecodingConfigurationMock::canSmoothlyDecodeMedia()
>-{
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig) {
>-        if (videoConfig->framerate() > 30)
>-            return false;
>-    }
>-
>-    RefPtr<MediaEngineAudioConfiguration> audioConfig = audioConfiguration();
>-    if (audioConfig)
>-        return audioConfig->channels() == "2";
>-
>-    return true;
>-}
>-
>-bool MediaEngineDecodingConfigurationMock::canPowerEfficientlyDecodeMedia()
>-{
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig) {
>-        if (videoConfig->contentType().containerType() != "video/mp4")
>-            return false;
>-    }
>-
>-    auto audioConfig = audioConfiguration();
>-    if (audioConfig)
>-        return audioConfig->bitrate() <= 1000;
>-
>-    return true;
>-}
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h b/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h
>deleted file mode 100644
>index 61f38298fc0..00000000000
>--- a/Source/WebCore/platform/mock/MediaEngineDecodingConfigurationMock.h
>+++ /dev/null
>@@ -1,58 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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.
>- */
>-
>-#pragma once
>-
>-#include "MediaDecodingConfiguration.h"
>-#include "MediaEngineConfigurationFactory.h"
>-#include "MediaEngineDecodingConfiguration.h"
>-
>-#include <wtf/Forward.h>
>-
>-namespace WebCore {
>-
>-class MediaEngineDecodingConfigurationMock final : public MediaEngineDecodingConfiguration {
>-public:
>-    static void create(MediaDecodingConfiguration& config, MediaEngineConfigurationFactory::DecodingConfigurationCallback& callback)
>-    {
>-        auto mockConfig = adoptRef(new MediaEngineDecodingConfigurationMock(WTFMove(config)));
>-        callback(mockConfig);
>-    };
>-
>-    ImplementationType implementationType() const final { return ImplementationType::Mock; }
>-    bool canDecodeMedia() final;
>-    bool canSmoothlyDecodeMedia() final;
>-    bool canPowerEfficientlyDecodeMedia() final;
>-
>-private:
>-    explicit MediaEngineDecodingConfigurationMock(MediaDecodingConfiguration&& config)
>-        : MediaEngineDecodingConfiguration(WTFMove(config)) { };
>-};
>-
>-}
>-
>-SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(WebCore::MediaEngineDecodingConfigurationMock, WebCore::MediaEngineDecodingConfiguration::ImplementationType::Mock);
>diff --git a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp
>deleted file mode 100644
>index 680249163bb..00000000000
>--- a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.cpp
>+++ /dev/null
>@@ -1,86 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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 "config.h"
>-#include "MediaEngineEncodingConfigurationMock.h"
>-
>-#include "ContentType.h"
>-#include "IntSize.h"
>-
>-namespace WebCore {
>-
>-bool MediaEngineEncodingConfigurationMock::canEncodeMedia()
>-{
>-    // The mock implementation supports only local file playback.
>-    if (encodingType() == MediaEncodingType::Record)
>-        return false;
>-
>-    // Maxing out video encoding support at 720P.
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig) {
>-        IntSize size = videoConfig->size();
>-        if (size.width() > 1280 && size.height() > 720)
>-            return false;
>-    }
>-
>-    // Audio encoding support limited to audio/mp4.
>-    auto audioConfig = audioConfiguration();
>-    if (audioConfig && (audioConfig->contentType().containerType() != "audio/mp4"))
>-        return false;
>-
>-    return true;
>-}
>-
>-bool MediaEngineEncodingConfigurationMock::canSmoothlyEncodeMedia()
>-{
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig) {
>-        if (videoConfig->framerate() > 30)
>-            return false;
>-    }
>-
>-    auto audioConfig = audioConfiguration();
>-    if (audioConfig && audioConfig->channels() != "2")
>-        return false;
>-
>-    return true;
>-}
>-
>-bool MediaEngineEncodingConfigurationMock::canPowerEfficientlyEncodeMedia()
>-{
>-    auto videoConfig = videoConfiguration();
>-    if (videoConfig && (videoConfig->contentType().containerType() != "video/mp4"))
>-        return false;
>-
>-    auto audioConfig = audioConfiguration();
>-    if (audioConfig && (audioConfig->bitrate() > 1000))
>-        return false;
>-
>-    return true;
>-}
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h b/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h
>deleted file mode 100644
>index 8c405aff78d..00000000000
>--- a/Source/WebCore/platform/mock/MediaEngineEncodingConfigurationMock.h
>+++ /dev/null
>@@ -1,58 +0,0 @@
>-/*
>- * Copyright (C) 2018 Igalia S.L.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions
>- * are met:
>- *
>- * 1. Redistributions of source code must retain the above copyright
>- *    notice, this list of conditions and the following disclaimer.
>- * 2. 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
>- * HOLDER 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.
>- */
>-
>-#pragma once
>-
>-#include "MediaEncodingConfiguration.h"
>-#include "MediaEngineConfigurationFactory.h"
>-#include "MediaEngineEncodingConfiguration.h"
>-
>-#include <wtf/Forward.h>
>-
>-namespace WebCore {
>-
>-class MediaEngineEncodingConfigurationMock final : public MediaEngineEncodingConfiguration {
>-public:
>-    static void create(MediaEncodingConfiguration& config, MediaEngineConfigurationFactory::EncodingConfigurationCallback& callback)
>-    {
>-        auto mockConfig = adoptRef(new MediaEngineEncodingConfigurationMock(WTFMove(config)));
>-        callback(mockConfig);
>-    };
>-
>-    ImplementationType implementationType() const final { return ImplementationType::Mock; }
>-    bool canEncodeMedia() final;
>-    bool canSmoothlyEncodeMedia() final;
>-    bool canPowerEfficientlyEncodeMedia() final;
>-
>-private:
>-    explicit MediaEngineEncodingConfigurationMock(MediaEncodingConfiguration&& config)
>-        : MediaEngineEncodingConfiguration(WTFMove(config)) { };
>-};
>-
>-}
>-
>-SPECIALIZE_TYPE_TRAITS_MEDIA_ENGINE_CONFIGURATION(WebCore::MediaEngineEncodingConfigurationMock, WebCore::MediaEngineEncodingConfiguration::ImplementationType::Mock);

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Attachments on bug 189438: 349214 | 349219 | 349220 | 349225 | 349230 | 349235 | 349315 | 349317