Attachment 348693 Details for Bug 187773 – Patch

[patch] Patch

bug-187773-20180831175509.patch (text/plain), 113.77 KB, created by Woodrow Wang on 2018-08-31 17:55:10 PDT

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Creator: Woodrow Wang

Created: 2018-08-31 17:55:10 PDT

Size: 113.77 KB

patch

obsolete

>Subversion Revision: 235561
>diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
>index 4d5e2e36ff39eb349b80e45070cd2547f9139fdc..346e1151714e642db8eea5e308d765a861c3c663 100644
>--- a/Source/JavaScriptCore/ChangeLog
>+++ b/Source/JavaScriptCore/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-08-31  Mark Lam  <mark.lam@apple.com>
> 
>         Fix exception check accounting in constructJSWebAssemblyCompileError().
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 4b8cbc070ac2bf05988c9e301c04b20093165c99..64ab88b166f92703368a91c788ccce68dff72ac3 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,113 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        Added data collection for web API statistics, specifically regarding the canvas, font loads, 
>+        screen functions, and navigator functions. All of the code is placed under the compile time flag
>+        ENABLE_WEB_API_STATISTICS. The statistics are stored in a ResourceLoadStatistics object and written
>+        to a plist on disk. Added a new file CanvasActivityRecord.h and CanvasActivityRecord.cpp which 
>+        includes a struct to keep track of HTML5 canvas element read and writes. 
>+
>+        Tests: http/tests/webAPIStatistics/canvas-read-and-write-data-collection.html
>+               http/tests/webAPIStatistics/font-load-data-collection.html
>+               http/tests/webAPIStatistics/navigator-functions-accessed-data-collection.html
>+               http/tests/webAPIStatistics/screen-functions-accessed-data-collection.html
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * css/CSSFontFaceSource.cpp:
>+        (WebCore::CSSFontFaceSource::load):
>+        * css/CSSFontSelector.cpp:
>+        (WebCore::CSSFontSelector::fontRangesForFamily):
>+        (WebCore::CSSFontSelector::fallbackFontAt):
>+
>+        The following are the functions where we'd like to record a canvas read. 
>+
>+        * html/HTMLCanvasElement.cpp:
>+        (WebCore::HTMLCanvasElement::toDataURL):
>+        (WebCore::HTMLCanvasElement::toBlob):
>+        (WebCore::HTMLCanvasElement::getImageData):
>+        (WebCore::HTMLCanvasElement::toMediaSample):
>+        (WebCore::HTMLCanvasElement::captureStream):
>+
>+        The following are the functions where we'd like to record a canvas write.
>+
>+        * html/canvas/CanvasRenderingContext2D.cpp:
>+        (WebCore::CanvasRenderingContext2D::measureText):
>+        (WebCore::CanvasRenderingContext2D::drawTextInternal):
>+
>+        The following files and functions handle the CanvasActivityRecord struct and
>+        its respective functions.
>+
>+        * loader/CanvasActivityRecord.cpp: Added.
>+        (WebCore::CanvasActivityRecord::recordWrittenOrMeasuredText):
>+        (WebCore::CanvasActivityRecord::mergeWith):
>+        * loader/CanvasActivityRecord.h: Added.
>+        (WebCore::CanvasActivityRecord::encode const):
>+        (WebCore::CanvasActivityRecord::decode):
>+
>+        * loader/ResourceLoadObserver.cpp:
>+        (WebCore::ResourceLoadObserver::logFontLoad):
>+        (WebCore::ResourceLoadObserver::logCanvasRead):
>+        (WebCore::ResourceLoadObserver::logCanvasWriteOrMeasure):
>+        (WebCore::ResourceLoadObserver::logNavigatorAPIAccessed):
>+        (WebCore::ResourceLoadObserver::logScreenAPIAccessed):
>+
>+        Before, entries in the ResourceLoadStatistics involving HashSets used "origin" as the key. 
>+        Now the encodeHashSet function has been generalized to take any key to encode the entries 
>+        in the HashSet. Also added functionality to encode an OptionSet by converting it to its 
>+        raw bitmask state. 
>+
>+        * loader/ResourceLoadObserver.h:
>+        * loader/ResourceLoadStatistics.cpp:
>+        (WebCore::encodeHashSet):
>+        (WebCore::encodeOriginHashSet):
>+        (WebCore::encodeOptionSet):
>+        (WebCore::encodeFontHashSet):
>+        (WebCore::encodeCanvasActivityRecord):
>+        (WebCore::ResourceLoadStatistics::encode const):
>+        (WebCore::decodeHashSet):
>+        (WebCore::decodeOriginHashSet):
>+        (WebCore::decodeOptionSet):
>+        (WebCore::decodeFontHashSet):
>+        (WebCore::decodeCanvasActivityRecord):
>+        (WebCore::ResourceLoadStatistics::decode):
>+        (WebCore::navigatorEnumToString):
>+        (WebCore::screenEnumToString):
>+        (WebCore::appendNavigatorOptionSet):
>+        (WebCore::appendScreenOptionSet):
>+        (WebCore::ResourceLoadStatistics::toString const):
>+        (WebCore::ResourceLoadStatistics::merge):
>+        * loader/ResourceLoadStatistics.h:
>+
>+        The following are the navigator functions recorded for the web API statistics.
>+
>+        * page/Navigator.cpp:
>+        (WebCore::Navigator::appVersion const):
>+        (WebCore::Navigator::userAgent const):
>+        (WebCore::Navigator::plugins):
>+        (WebCore::Navigator::mimeTypes):
>+        (WebCore::Navigator::cookieEnabled const):
>+        (WebCore::Navigator::javaEnabled const):
>+
>+        The following are the screen functions recorded for the web API statistics.
>+        
>+        * page/Screen.cpp:
>+        (WebCore::Screen::height const):
>+        (WebCore::Screen::width const):
>+        (WebCore::Screen::colorDepth const):
>+        (WebCore::Screen::pixelDepth const):
>+        (WebCore::Screen::availLeft const):
>+        (WebCore::Screen::availTop const):
>+        (WebCore::Screen::availHeight const):
>+        (WebCore::Screen::availWidth const):
>+
> 2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
> 
>         Added functionality to encode and decode a uint64_t in KeyedCoding. 
>diff --git a/Source/WebCore/PAL/ChangeLog b/Source/WebCore/PAL/ChangeLog
>index e695f7a594990c43e0bfb56dc806670f2f6eb4bd..a15a110ed6c289a6028239835fc7e93f1889fa58 100644
>--- a/Source/WebCore/PAL/ChangeLog
>+++ b/Source/WebCore/PAL/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-08-30  Don Olmstead  <don.olmstead@sony.com>
> 
>         [CMake] Replace AVFoundationSupport.py using CMake
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 2088cb0473e5631d95f3d11594e6f09be11bdd44..6a633bafd2162a9f2622d8172814073eb7e1d07b 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,19 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+        * Shared/WebCoreArgumentCoders.cpp:
>+        (IPC::ArgumentCoder<ResourceLoadStatistics>::encode):
>+        (IPC::ArgumentCoder<ResourceLoadStatistics>::decode):
>+        * UIProcess/ResourceLoadStatisticsMemoryStore.cpp:
>+
> 2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
> 
>         Added dumping function for testing resource load statistics
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index e0c685c01be426f4569c2c49f9ad2e8ba318ff0d..06bc19c80599678e79b8a48494e9009c8f3bf07c 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        * Configurations/FeatureDefines.xcconfig:
>+
> 2018-08-31  Antti Koivisto  <antti@apple.com>
> 
>         Replace OptionSet |= and -= operators with add() and remove() functions
>diff --git a/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig b/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>+++ b/Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebCore/Configurations/FeatureDefines.xcconfig b/Source/WebCore/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Source/WebCore/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebCore/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig b/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebCore/PAL/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 3c65e976a7ae442504580519fcb2babdc165208c..d617fa2ed8b86411a59cfb6432c11d6803ecebcc 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -4802,6 +4802,8 @@
> 		ED2BA83C09A24B91006C0AC4 /* DocumentMarker.h in Headers */ = {isa = PBXBuildFile; fileRef = ED2BA83B09A24B91006C0AC4 /* DocumentMarker.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		EDE3A5000C7A430600956A37 /* ColorMac.h in Headers */ = {isa = PBXBuildFile; fileRef = EDE3A4FF0C7A430600956A37 /* ColorMac.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		EDEC98030AED7E170059137F /* WebCorePrefix.h in Headers */ = {isa = PBXBuildFile; fileRef = EDEC98020AED7E170059137F /* WebCorePrefix.h */; };
>+		EFB728812124CA38005C2558 /* CanvasActivityRecord.cpp in Sources */ = {isa = PBXBuildFile; fileRef = EFB7287B2124C73D005C2558 /* CanvasActivityRecord.cpp */; };
>+		EFCC6C8F20FE914400A2321B /* CanvasActivityRecord.h in Headers */ = {isa = PBXBuildFile; fileRef = EFCC6C8D20FE914000A2321B /* CanvasActivityRecord.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		F12171F516A8CED2000053CA /* WebVTTElement.cpp in Sources */ = {isa = PBXBuildFile; fileRef = F12171F316A8BC63000053CA /* WebVTTElement.cpp */; };
> 		F12171F616A8CF0B000053CA /* WebVTTElement.h in Headers */ = {isa = PBXBuildFile; fileRef = F12171F416A8BC63000053CA /* WebVTTElement.h */; };
> 		F344C7141125B82C00F26EEE /* InspectorFrontendClient.h in Headers */ = {isa = PBXBuildFile; fileRef = F344C7121125B82C00F26EEE /* InspectorFrontendClient.h */; settings = {ATTRIBUTES = (Private, ); }; };
>@@ -14453,6 +14455,8 @@
> 		ED501DC50B249F2900AE18D9 /* EditorMac.mm */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.objcpp; path = EditorMac.mm; sourceTree = "<group>"; };
> 		EDE3A4FF0C7A430600956A37 /* ColorMac.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ColorMac.h; sourceTree = "<group>"; };
> 		EDEC98020AED7E170059137F /* WebCorePrefix.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; path = WebCorePrefix.h; sourceTree = "<group>"; tabWidth = 4; usesTabs = 0; };
>+		EFB7287B2124C73D005C2558 /* CanvasActivityRecord.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = CanvasActivityRecord.cpp; sourceTree = "<group>"; };
>+		EFCC6C8D20FE914000A2321B /* CanvasActivityRecord.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CanvasActivityRecord.h; sourceTree = "<group>"; };
> 		F12171F316A8BC63000053CA /* WebVTTElement.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WebVTTElement.cpp; sourceTree = "<group>"; };
> 		F12171F416A8BC63000053CA /* WebVTTElement.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WebVTTElement.h; sourceTree = "<group>"; };
> 		F344C7121125B82C00F26EEE /* InspectorFrontendClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = InspectorFrontendClient.h; sourceTree = "<group>"; };
>@@ -24141,6 +24145,8 @@
> 				93A1EAA20A5634D8006960A0 /* mac */,
> 				63152D181F9531EE007A5E4B /* ApplicationManifestLoader.cpp */,
> 				63152D171F9531EE007A5E4B /* ApplicationManifestLoader.h */,
>+				EFB7287B2124C73D005C2558 /* CanvasActivityRecord.cpp */,
>+				EFCC6C8D20FE914000A2321B /* CanvasActivityRecord.h */,
> 				A149786C1ABAF33800CEF7E4 /* ContentFilter.cpp */,
> 				A149786D1ABAF33800CEF7E4 /* ContentFilter.h */,
> 				E1424C91164B52C800F32D40 /* CookieJar.cpp */,
>@@ -27222,6 +27228,7 @@
> 				7C1E8D011ED0C2DA00B1D983 /* CallbackResult.h in Headers */,
> 				952076051F2675FE007D2AAB /* CallTracer.h in Headers */,
> 				952076061F2675FE007D2AAB /* CallTracerTypes.h in Headers */,
>+				EFCC6C8F20FE914400A2321B /* CanvasActivityRecord.h in Headers */,
> 				313171561FB079E5008D91FC /* CanvasBase.h in Headers */,
> 				415CDAF51E6B8F8B004F11EE /* CanvasCaptureMediaStreamTrack.h in Headers */,
> 				7C193BBB1F5E0EED0088F3E6 /* CanvasDirection.h in Headers */,
>@@ -31355,6 +31362,7 @@
> 				070363E7181A1CDC00C074A5 /* AVVideoCaptureSource.mm in Sources */,
> 				7A45032F18DB717200377B34 /* BufferedLineReader.cpp in Sources */,
> 				0753860214489E9800B78452 /* CachedTextTrack.cpp in Sources */,
>+				EFB728812124CA38005C2558 /* CanvasActivityRecord.cpp in Sources */,
> 				CDF4B7151E00B7E500E235A2 /* CDM.cpp in Sources */,
> 				CD94A5DD1F71D5D800F525C5 /* CDMClearKey.cpp in Sources */,
> 				CDB7045B1F7465A1003923DF /* CDMFairPlayStreaming.cpp in Sources */,
>diff --git a/Source/WebCore/css/CSSFontFaceSource.cpp b/Source/WebCore/css/CSSFontFaceSource.cpp
>index 4d603b5769587cad4cd6669ad2a65ba37baeb8e8..4f532d69d3cc31531ee4c5369cd8237cfe73946e 100644
>--- a/Source/WebCore/css/CSSFontFaceSource.cpp
>+++ b/Source/WebCore/css/CSSFontFaceSource.cpp
>@@ -37,6 +37,10 @@
> #include "SVGToOTFFontConversion.h"
> #include "SharedBuffer.h"
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
>+
> #if ENABLE(SVG_FONTS)
> #include "CachedSVGFont.h"
> #include "FontCustomPlatformData.h"
>@@ -181,6 +185,10 @@ void CSSFontFaceSource::load(CSSFontSelector* fontSelector)
>             fontDescription.setComputedSize(1);
>             fontDescription.setShouldAllowUserInstalledFonts(m_face.allowUserInstalledFonts());
>             success = FontCache::singleton().fontForFamily(fontDescription, m_familyNameOrURI, nullptr, nullptr, FontSelectionSpecifiedCapabilities(), true);
>+#if ENABLE(WEB_API_STATISTICS)
>+            if (auto document = fontSelector->document())
>+                ResourceLoadObserver::shared().logFontLoad(*document, m_familyNameOrURI.string(), success);
>+#endif
>         }
>         setStatus(success ? Status::Success : Status::Failure);
>     }
>diff --git a/Source/WebCore/css/CSSFontSelector.cpp b/Source/WebCore/css/CSSFontSelector.cpp
>index 9ad88a2a4df62a851786c0f34a9541d0a3cffdcc..a1bfa0d844d4f97e123781590be03edb114a8efc 100644
>--- a/Source/WebCore/css/CSSFontSelector.cpp
>+++ b/Source/WebCore/css/CSSFontSelector.cpp
>@@ -54,6 +54,10 @@
> #include <wtf/SetForScope.h>
> #include <wtf/text/AtomicString.h>
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
>+
> namespace WebCore {
> 
> static unsigned fontSelectorId;
>@@ -304,13 +308,22 @@ FontRanges CSSFontSelector::fontRangesForFamily(const FontDescription& fontDescr
> 
>     AtomicString familyForLookup = resolveGenericFamilyFirst ? resolveGenericFamily(m_document, fontDescription, familyName) : familyName;
>     auto* face = m_cssFontFaceSet->fontFace(fontDescription.fontSelectionRequest(), familyForLookup);
>-    if (!face) {
>-        if (!resolveGenericFamilyFirst)
>-            familyForLookup = resolveGenericFamily(m_document, fontDescription, familyName);
>-        return FontRanges(FontCache::singleton().fontForFamily(fontDescription, familyForLookup));
>+    if (face) {
>+#if ENABLE(WEB_API_STATISTICS)
>+        // This logs an attempted font load by setting the loadStatus boolean to true
>+        if (m_document)
>+            ResourceLoadObserver::shared().logFontLoad(*m_document, familyName.string(), true);
>+#endif
>+        return face->fontRanges(fontDescription);
>     }
>-
>-    return face->fontRanges(fontDescription);
>+    if (!resolveGenericFamilyFirst)
>+        familyForLookup = resolveGenericFamily(m_document, fontDescription, familyName);
>+    auto font = FontCache::singleton().fontForFamily(fontDescription, familyForLookup);
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (m_document)
>+        ResourceLoadObserver::shared().logFontLoad(*m_document, familyName.string(), !!font);
>+#endif
>+    return FontRanges { WTFMove(font) };
> }
> 
> void CSSFontSelector::clearDocument()
>@@ -390,8 +403,13 @@ RefPtr<Font> CSSFontSelector::fallbackFontAt(const FontDescription& fontDescript
> 
>     if (!m_document->settings().fontFallbackPrefersPictographs())
>         return nullptr;
>-
>-    return FontCache::singleton().fontForFamily(fontDescription, m_document->settings().pictographFontFamily());
>+    RefPtr<Font> font = FontCache::singleton().fontForFamily(fontDescription, m_document->settings().pictographFontFamily());
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (m_document)
>+        ResourceLoadObserver::shared().logFontLoad(*m_document, m_document->settings().pictographFontFamily().string(), !!font);
>+#endif
>+    
>+    return font;
> }
> 
> }
>diff --git a/Source/WebCore/html/HTMLCanvasElement.cpp b/Source/WebCore/html/HTMLCanvasElement.cpp
>index 6298643a2d96092a4cfee988dd28b6d937c5da73..a564f80ea60e14eea009c23fbd91f5f6f4d186d3 100644
>--- a/Source/WebCore/html/HTMLCanvasElement.cpp
>+++ b/Source/WebCore/html/HTMLCanvasElement.cpp
>@@ -64,6 +64,10 @@
> #include "MediaStream.h"
> #endif
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
>+
> #if ENABLE(WEBGL)
> #include "WebGLContextAttributes.h"
> #include "WebGLRenderingContext.h"
>@@ -698,6 +702,9 @@ ExceptionOr<UncachedString> HTMLCanvasElement::toDataURL(const String& mimeType,
> 
>     if (m_size.isEmpty() || !buffer())
>         return UncachedString { "data:,"_s };
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logCanvasRead(document());
>+#endif
> 
>     auto encodingMIMEType = toEncodingMimeType(mimeType);
>     auto quality = qualityFromJSValue(qualityValue);
>@@ -727,6 +734,9 @@ ExceptionOr<void> HTMLCanvasElement::toBlob(ScriptExecutionContext& context, Ref
>         callback->scheduleCallback(context, nullptr);
>         return { };
>     }
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logCanvasRead(document());
>+#endif
> 
>     auto encodingMIMEType = toEncodingMimeType(mimeType);
>     auto quality = qualityFromJSValue(qualityValue);
>@@ -755,8 +765,12 @@ ExceptionOr<void> HTMLCanvasElement::toBlob(ScriptExecutionContext& context, Ref
> RefPtr<ImageData> HTMLCanvasElement::getImageData()
> {
> #if ENABLE(WEBGL)
>-    if (is<WebGLRenderingContextBase>(m_context.get()))
>+    if (is<WebGLRenderingContextBase>(m_context.get())) {
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logCanvasRead(document());
>+#endif
>         return downcast<WebGLRenderingContextBase>(*m_context).paintRenderingResultsToImageData();
>+    }
> #endif
>     return nullptr;
> }
>@@ -768,6 +782,9 @@ RefPtr<MediaSample> HTMLCanvasElement::toMediaSample()
>     auto* imageBuffer = buffer();
>     if (!imageBuffer)
>         return nullptr;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logCanvasRead(document());
>+#endif
> 
> #if PLATFORM(COCOA)
>     makeRenderingResultsAvailable();
>@@ -781,6 +798,9 @@ ExceptionOr<Ref<MediaStream>> HTMLCanvasElement::captureStream(ScriptExecutionCo
> {
>     if (!originClean())
>         return Exception(SecurityError, "Canvas is tainted"_s);
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logCanvasRead(document());
>+#endif
> 
>     if (frameRequestRate && frameRequestRate.value() < 0)
>         return Exception(NotSupportedError, "frameRequestRate is negative"_s);
>diff --git a/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp b/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp
>index e27d95194819b02e9414d49bfa8faff2ea1761de..88860497462a249293d4969effa6bed0008a4c31 100644
>--- a/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp
>+++ b/Source/WebCore/html/canvas/CanvasRenderingContext2D.cpp
>@@ -49,6 +49,10 @@
> #include <wtf/MathExtras.h>
> #include <wtf/text/StringBuilder.h>
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
>+
> namespace WebCore {
> 
> using namespace HTMLNames;
>@@ -363,6 +367,12 @@ static void normalizeSpaces(String& text)
> 
> Ref<TextMetrics> CanvasRenderingContext2D::measureText(const String& text)
> {
>+#if ENABLE(WEB_API_STATISTICS)
>+    HTMLCanvasElement& canvas = this->canvas();
>+    ResourceLoadObserver::shared().logCanvasWriteOrMeasure(canvas.document(), text);
>+    ResourceLoadObserver::shared().logCanvasRead(canvas.document());
>+#endif
>+    
>     Ref<TextMetrics> metrics = TextMetrics::create();
> 
>     String normalizedText = text;
>@@ -451,6 +461,11 @@ FloatPoint CanvasRenderingContext2D::textOffset(float width, TextDirection direc
> 
> void CanvasRenderingContext2D::drawTextInternal(const String& text, float x, float y, bool fill, std::optional<float> maxWidth)
> {
>+#if ENABLE(WEB_API_STATISTICS)
>+    HTMLCanvasElement& canvas = this->canvas();
>+    ResourceLoadObserver::shared().logCanvasWriteOrMeasure(canvas.document(), text);
>+#endif
>+    
>     auto& fontProxy = this->fontProxy();
>     const auto& fontMetrics = fontProxy.fontMetrics();
> 
>diff --git a/Source/WebCore/loader/CanvasActivityRecord.cpp b/Source/WebCore/loader/CanvasActivityRecord.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..c4f78723168cc53b38b401c2d5080bb08da06189
>--- /dev/null
>+++ b/Source/WebCore/loader/CanvasActivityRecord.cpp
>@@ -0,0 +1,46 @@
>+/*
>+ * 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.
>+ */
>+
>+#include "config.h"
>+#include "CanvasActivityRecord.h"
>+
>+const unsigned textCapacity = 10;
>+namespace WebCore {
>+bool CanvasActivityRecord::recordWrittenOrMeasuredText(const String& text)
>+{
>+    // We limit the size of the textWritten HashSet to save memory and prevent bloating
>+    // the plist with the resourceLoadStatistics entries. A few strings is often enough
>+    // to provide sufficient information about the state of canvas activity.
>+    if (textWritten.size() < textCapacity && textWritten.add(text).isNewEntry)
>+        return true;
>+    return false;
>+}
>+
>+void CanvasActivityRecord::mergeWith(const CanvasActivityRecord& otherCanvasActivityRecord)
>+{
>+    textWritten.add(otherCanvasActivityRecord.textWritten.begin(), otherCanvasActivityRecord.textWritten.end());
>+    wasDataRead |= otherCanvasActivityRecord.wasDataRead;
>+}
>+} // namespace WebCore
>diff --git a/Source/WebCore/loader/CanvasActivityRecord.h b/Source/WebCore/loader/CanvasActivityRecord.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..1e13f48cba6d2c83f0e7a30f3d361950bc124e51
>--- /dev/null
>+++ b/Source/WebCore/loader/CanvasActivityRecord.h
>@@ -0,0 +1,59 @@
>+/*
>+ * 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
>+#include <wtf/HashSet.h>
>+#include <wtf/text/StringHash.h>
>+#include <wtf/text/WTFString.h>
>+
>+namespace WebCore {
>+struct CanvasActivityRecord {
>+    HashSet<String> textWritten;
>+    bool wasDataRead { false };
>+    
>+    bool recordWrittenOrMeasuredText(const String&);
>+    void mergeWith(const CanvasActivityRecord&);
>+    
>+    template <class Encoder> void encode(Encoder&) const;
>+    template <class Decoder> static bool decode(Decoder&, CanvasActivityRecord&);
>+};
>+    
>+template <class Encoder>
>+void CanvasActivityRecord::encode(Encoder& encoder) const
>+{
>+    encoder << textWritten;
>+    encoder << wasDataRead;
>+}
>+
>+template <class Decoder>
>+bool CanvasActivityRecord::decode(Decoder& decoder, CanvasActivityRecord& canvasActivityRecord)
>+{
>+    if (!decoder.decode(canvasActivityRecord.textWritten))
>+        return false;
>+    if (!decoder.decode(canvasActivityRecord.wasDataRead))
>+        return false;
>+    return true;
>+}
>+} // namespace WebCore
>diff --git a/Source/WebCore/loader/ResourceLoadObserver.cpp b/Source/WebCore/loader/ResourceLoadObserver.cpp
>index 8d03ba06755fa4570650f4e6d9b03bb68483df3a..389cf4607a617cb12d7385437540c44a2efc7429 100644
>--- a/Source/WebCore/loader/ResourceLoadObserver.cpp
>+++ b/Source/WebCore/loader/ResourceLoadObserver.cpp
>@@ -242,6 +242,86 @@ void ResourceLoadObserver::requestStorageAccessUnderOpener(const String& domainI
> }
> #endif
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+void ResourceLoadObserver::logFontLoad(const Document& document, const String& familyName, bool loadStatus)
>+{
>+    if (!shouldLog(document.sessionID().isEphemeral()) || !document.frame())
>+        return;
>+    auto registrableDomain = primaryDomain(document.url());
>+    auto& statistics = ensureResourceStatisticsForPrimaryDomain(registrableDomain);
>+    if (!loadStatus)
>+        statistics.fontsFailedToLoad.add(familyName);
>+    statistics.fontsLoaded.add(familyName);
>+    auto mainFrameRegistrableDomain = primaryDomain(document.frame()->mainFrame().document()->url());
>+    if (statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs.add(mainFrameRegistrableDomain).isNewEntry)
>+        scheduleNotificationIfNeeded();
>+}
>+    
>+void ResourceLoadObserver::logCanvasRead(const Document& document)
>+{
>+    if (!shouldLog(document.sessionID().isEphemeral()) || !document.frame())
>+        return;
>+    auto registrableDomain = primaryDomain(document.url());
>+    auto& statistics = ensureResourceStatisticsForPrimaryDomain(registrableDomain);
>+    auto mainFrameRegistrableDomain = primaryDomain(document.frame()->mainFrame().document()->url());
>+    statistics.canvasActivityRecord.wasDataRead = true;
>+    if (statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs.add(mainFrameRegistrableDomain).isNewEntry)
>+        scheduleNotificationIfNeeded();
>+}
>+
>+void ResourceLoadObserver::logCanvasWriteOrMeasure(const Document& document, const String& textWritten)
>+{
>+    if (!shouldLog(document.sessionID().isEphemeral()) || !document.frame())
>+        return;
>+    auto registrableDomain = primaryDomain(document.url());
>+    auto& statistics = ensureResourceStatisticsForPrimaryDomain(registrableDomain);
>+    bool shouldCallNotificationCallback = false;
>+    auto mainFrameRegistrableDomain = primaryDomain(document.frame()->mainFrame().document()->url());
>+    if (statistics.canvasActivityRecord.recordWrittenOrMeasuredText(textWritten))
>+        shouldCallNotificationCallback = true;
>+    if (statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs.add(mainFrameRegistrableDomain).isNewEntry)
>+        shouldCallNotificationCallback = true;
>+    if (shouldCallNotificationCallback)
>+        scheduleNotificationIfNeeded();
>+}
>+    
>+void ResourceLoadObserver::logNavigatorAPIAccessed(const Document& document, const ResourceLoadStatistics::NavigatorAPI functionName)
>+{
>+    if (!shouldLog(document.sessionID().isEphemeral()) || !document.frame())
>+        return;
>+    auto registrableDomain = primaryDomain(document.url());
>+    auto& statistics = ensureResourceStatisticsForPrimaryDomain(registrableDomain);
>+    bool shouldCallNotificationCallback = false;
>+    if (!statistics.navigatorFunctionsAccessed.contains(functionName)) {
>+        statistics.navigatorFunctionsAccessed.add(functionName);
>+        shouldCallNotificationCallback = true;
>+    }
>+    auto mainFrameRegistrableDomain = primaryDomain(document.frame()->mainFrame().document()->url());
>+    if (statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs.add(mainFrameRegistrableDomain).isNewEntry)
>+        shouldCallNotificationCallback = true;
>+    if (shouldCallNotificationCallback)
>+        scheduleNotificationIfNeeded();
>+}
>+    
>+void ResourceLoadObserver::logScreenAPIAccessed(const Document& document, const ResourceLoadStatistics::ScreenAPI functionName)
>+{
>+    if (!shouldLog(document.sessionID().isEphemeral()) || !document.frame())
>+        return;
>+    auto registrableDomain = primaryDomain(document.url());
>+    auto& statistics = ensureResourceStatisticsForPrimaryDomain(registrableDomain);
>+    bool shouldCallNotificationCallback = false;
>+    if (!statistics.screenFunctionsAccessed.contains(functionName)) {
>+        statistics.screenFunctionsAccessed.add(functionName);
>+        shouldCallNotificationCallback = true;
>+    }
>+    auto mainFrameRegistrableDomain = primaryDomain(document.frame()->mainFrame().document()->url());
>+    if (statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs.add(mainFrameRegistrableDomain).isNewEntry)
>+        shouldCallNotificationCallback = true;
>+    if (shouldCallNotificationCallback)
>+        scheduleNotificationIfNeeded();
>+}
>+#endif
>+    
> ResourceLoadStatistics& ResourceLoadObserver::ensureResourceStatisticsForPrimaryDomain(const String& primaryDomain)
> {
>     auto addResult = m_resourceStatisticsMap.ensure(primaryDomain, [&primaryDomain] {
>diff --git a/Source/WebCore/loader/ResourceLoadObserver.h b/Source/WebCore/loader/ResourceLoadObserver.h
>index 5b6d9188fbd2228a913f81f33ad7dbc90534bb26..947a735d397da95cb3e1686a7f1cf079e5ce326d 100644
>--- a/Source/WebCore/loader/ResourceLoadObserver.h
>+++ b/Source/WebCore/loader/ResourceLoadObserver.h
>@@ -31,6 +31,11 @@
> #include <wtf/NeverDestroyed.h>
> #include <wtf/text/WTFString.h>
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "CanvasActivityRecord.h"
>+#include "ResourceLoadStatistics.h"
>+#endif
>+
> namespace WTF {
> class Lock;
> class WorkQueue;
>@@ -58,6 +63,14 @@ public:
>     void logWebSocketLoading(const URL& targetURL, const URL& mainFrameURL, bool usesEphemeralSession);
>     void logUserInteractionWithReducedTimeResolution(const Document&);
>     void logWindowCreation(const URL& popupUrl, uint64_t openerPageID, Document& openerDocument);
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    void logFontLoad(const Document&, const String& familyName, bool loadStatus);
>+    void logCanvasRead(const Document&);
>+    void logCanvasWriteOrMeasure(const Document&, const String& textWritten);
>+    void logNavigatorAPIAccessed(const Document&, const ResourceLoadStatistics::NavigatorAPI);
>+    void logScreenAPIAccessed(const Document&, const ResourceLoadStatistics::ScreenAPI);
>+#endif
> 
>     WEBCORE_EXPORT String statisticsForOrigin(const String&);
> 
>diff --git a/Source/WebCore/loader/ResourceLoadStatistics.cpp b/Source/WebCore/loader/ResourceLoadStatistics.cpp
>index 9e2b7cf31519ceb3856c38616c75720724f70ede..b2f9cc5515ea00449144dfc580f54fcad2e00813 100644
>--- a/Source/WebCore/loader/ResourceLoadStatistics.cpp
>+++ b/Source/WebCore/loader/ResourceLoadStatistics.cpp
>@@ -49,16 +49,48 @@ static void encodeHashCountedSet(KeyedEncoder& encoder, const String& label, con
>     });
> }
> 
>-static void encodeHashSet(KeyedEncoder& encoder, const String& label, const HashSet<String>& hashSet)
>+static void encodeHashSet(KeyedEncoder& encoder, const String& label, const HashSet<String>& hashSet, const String& key)
> {
>     if (hashSet.isEmpty())
>         return;
>     
>-    encoder.encodeObjects(label, hashSet.begin(), hashSet.end(), [](KeyedEncoder& encoderInner, const String& origin) {
>-        encoderInner.encodeString("origin", origin);
>+    encoder.encodeObjects(label, hashSet.begin(), hashSet.end(), [&key](KeyedEncoder& encoderInner, const String& origin) {
>+        encoderInner.encodeString(key, origin);
>     });
> }
> 
>+static void encodeOriginHashSet(KeyedEncoder& encoder, const String& label, const HashSet<String>& hashSet)
>+{
>+    encodeHashSet(encoder, label, hashSet, "origin");
>+}
>+
>+#if ENABLE(WEB_API_STATISTICS)
>+template<typename T>
>+static void encodeOptionSet(KeyedEncoder& encoder, const String& label, const OptionSet<T>& optionSet)
>+{
>+    if (optionSet.isEmpty())
>+        return;
>+    
>+    uint64_t optionSetBitMask = optionSet.toRaw();
>+    encoder.encodeUInt64(label, optionSetBitMask);
>+}
>+    
>+static void encodeFontHashSet(KeyedEncoder& encoder, const String& label, const HashSet<String>& hashSet)
>+{
>+    encodeHashSet(encoder, label, hashSet, "font");
>+}
>+    
>+static void encodeCanvasActivityRecord(KeyedEncoder& encoder, const String& label, const CanvasActivityRecord& canvasActivityRecord)
>+{
>+    encoder.encodeObject(label, canvasActivityRecord, [] (KeyedEncoder& encoderInner, const CanvasActivityRecord& canvasActivityRecord) {
>+        encoderInner.encodeBool("wasDataRead", canvasActivityRecord.wasDataRead);
>+        encoderInner.encodeObjects("textWritten", canvasActivityRecord.textWritten.begin(), canvasActivityRecord.textWritten.end(), [] (KeyedEncoder& encoderInner2, const String& text) {
>+            encoderInner2.encodeString("text", text);
>+        });
>+    });
>+}
>+#endif
>+
> void ResourceLoadStatistics::encode(KeyedEncoder& encoder) const
> {
>     encoder.encodeString("PrevalentResourceOrigin", highLevelDomain);
>@@ -71,7 +103,7 @@ void ResourceLoadStatistics::encode(KeyedEncoder& encoder) const
>     encoder.encodeBool("grandfathered", grandfathered);
> 
>     // Storage access
>-    encodeHashSet(encoder, "storageAccessUnderTopFrameOrigins", storageAccessUnderTopFrameOrigins);
>+    encodeOriginHashSet(encoder, "storageAccessUnderTopFrameOrigins", storageAccessUnderTopFrameOrigins);
> 
>     // Top frame stats
>     encodeHashCountedSet(encoder, "topFrameUniqueRedirectsTo", topFrameUniqueRedirectsTo);
>@@ -92,6 +124,15 @@ void ResourceLoadStatistics::encode(KeyedEncoder& encoder) const
> 
>     encoder.encodeUInt32("timesAccessedAsFirstPartyDueToUserInteraction", timesAccessedAsFirstPartyDueToUserInteraction);
>     encoder.encodeUInt32("timesAccessedAsFirstPartyDueToStorageAccessAPI", timesAccessedAsFirstPartyDueToStorageAccessAPI);
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    encodeFontHashSet(encoder, "fontsFailedToLoad", fontsFailedToLoad);
>+    encodeFontHashSet(encoder, "fontsLoaded", fontsLoaded);
>+    encodeHashCountedSet(encoder, "topFrameRegistrableDomainsWhichAccessedWebAPIs", topFrameRegistrableDomainsWhichAccessedWebAPIs);
>+    encodeCanvasActivityRecord(encoder, "canvasActivityRecord", canvasActivityRecord);
>+    encodeOptionSet(encoder, "navigatorFunctionsAccessedBitMask", navigatorFunctionsAccessed);
>+    encodeOptionSet(encoder, "screenFunctionsAccessedBitMask", screenFunctionsAccessed);
>+#endif
> }
> 
> static void decodeHashCountedSet(KeyedDecoder& decoder, const String& label, HashCountedSet<String>& hashCountedSet)
>@@ -110,11 +151,11 @@ static void decodeHashCountedSet(KeyedDecoder& decoder, const String& label, Has
>     });
> }
> 
>-static void decodeHashSet(KeyedDecoder& decoder, const String& label, HashSet<String>& hashSet)
>+static void decodeHashSet(KeyedDecoder& decoder, const String& label, HashSet<String>& hashSet, const String& key)
> {
>     Vector<String> ignore;
>-    decoder.decodeObjects(label, ignore, [&hashSet](KeyedDecoder& decoderInner, String& origin) {
>-        if (!decoderInner.decodeString("origin", origin))
>+    decoder.decodeObjects(label, ignore, [&hashSet, &key](KeyedDecoder& decoderInner, String& origin) {
>+        if (!decoderInner.decodeString(key, origin))
>             return false;
>         
>         hashSet.add(origin);
>@@ -122,6 +163,42 @@ static void decodeHashSet(KeyedDecoder& decoder, const String& label, HashSet<St
>     });
> }
> 
>+static void decodeOriginHashSet(KeyedDecoder& decoder, const String& label, HashSet<String>& hashSet)
>+{
>+    decodeHashSet(decoder, label, hashSet, "origin");
>+}
>+
>+#if ENABLE(WEB_API_STATISTICS)
>+template<typename T>
>+static void decodeOptionSet(KeyedDecoder& decoder, const String& label, OptionSet<T>& optionSet)
>+{
>+    uint64_t optionSetBitMask = 0;
>+    decoder.decodeUInt64(label, optionSetBitMask);
>+    optionSet.add(OptionSet<T>::fromRaw(optionSetBitMask));
>+}
>+    
>+static void decodeFontHashSet(KeyedDecoder& decoder, const String& label, HashSet<String>& hashSet)
>+{
>+    decodeHashSet(decoder, label, hashSet, "font");
>+}
>+    
>+static void decodeCanvasActivityRecord(KeyedDecoder& decoder, const String& label, CanvasActivityRecord& canvasActivityRecord)
>+{
>+    decoder.decodeObject(label, canvasActivityRecord, [] (KeyedDecoder& decoderInner, CanvasActivityRecord& canvasActivityRecord) {
>+        if (!decoderInner.decodeBool("wasDataRead", canvasActivityRecord.wasDataRead))
>+            return false;
>+        Vector<String> ignore;
>+        decoderInner.decodeObjects("textWritten", ignore, [&canvasActivityRecord] (KeyedDecoder& decoderInner2, String& text) {
>+            if (!decoderInner2.decodeString("text", text))
>+                return false;
>+            canvasActivityRecord.textWritten.add(text);
>+            return true;
>+        });
>+        return true;
>+    });
>+}
>+#endif
>+
> bool ResourceLoadStatistics::decode(KeyedDecoder& decoder, unsigned modelVersion)
> {
>     if (!decoder.decodeString("PrevalentResourceOrigin", highLevelDomain))
>@@ -132,7 +209,7 @@ bool ResourceLoadStatistics::decode(KeyedDecoder& decoder, unsigned modelVersion
>         return false;
> 
>     // Storage access
>-    decodeHashSet(decoder, "storageAccessUnderTopFrameOrigins", storageAccessUnderTopFrameOrigins);
>+    decodeOriginHashSet(decoder, "storageAccessUnderTopFrameOrigins", storageAccessUnderTopFrameOrigins);
> 
>     // Top frame stats
>     if (modelVersion >= 11) {
>@@ -180,6 +257,18 @@ bool ResourceLoadStatistics::decode(KeyedDecoder& decoder, unsigned modelVersion
>         if (!decoder.decodeUInt32("timesAccessedAsFirstPartyDueToStorageAccessAPI", timesAccessedAsFirstPartyDueToStorageAccessAPI))
>             timesAccessedAsFirstPartyDueToStorageAccessAPI = 0;
>     }
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (modelVersion >= 13) {
>+        decodeFontHashSet(decoder, "fontsFailedToLoad", fontsFailedToLoad);
>+        decodeFontHashSet(decoder, "fontsLoaded", fontsLoaded);
>+        decodeHashCountedSet(decoder, "topFrameRegistrableDomainsWhichAccessedWebAPIs", topFrameRegistrableDomainsWhichAccessedWebAPIs);
>+        decodeCanvasActivityRecord(decoder, "canvasActivityRecord", canvasActivityRecord);
>+        decodeOptionSet(decoder, "navigatorFunctionsAccessedBitMask", navigatorFunctionsAccessed);
>+        decodeOptionSet(decoder, "screenFunctionsAccessedBitMask", screenFunctionsAccessed);
>+    }
>+#endif
>+    
>     return true;
> }
> 
>@@ -225,11 +314,87 @@ static void appendHashSet(StringBuilder& builder, const String& label, const Has
>     }
> }
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+static String navigatorEnumToString(ResourceLoadStatistics::NavigatorAPI navigatorEnum)
>+{
>+    switch (navigatorEnum) {
>+    case ResourceLoadStatistics::NavigatorAPI::JavaEnabled:
>+        return "javaEnabled";
>+    case ResourceLoadStatistics::NavigatorAPI::MimeTypes:
>+        return "mimeTypes";
>+    case ResourceLoadStatistics::NavigatorAPI::CookieEnabled:
>+        return "cookieEnabled";
>+    case ResourceLoadStatistics::NavigatorAPI::Plugins:
>+        return "plugins";
>+    case ResourceLoadStatistics::NavigatorAPI::UserAgent:
>+        return "userAgent";
>+    case ResourceLoadStatistics::NavigatorAPI::AppVersion:
>+        return "appVersion";
>+    default:
>+        return "Not a recognized navigator function";
>+    }
>+}
>+
>+static String screenEnumToString(ResourceLoadStatistics::ScreenAPI screenEnum)
>+{
>+    switch (screenEnum) {
>+    case ResourceLoadStatistics::ScreenAPI::Height:
>+        return "height";
>+    case ResourceLoadStatistics::ScreenAPI::Width:
>+        return "width";
>+    case ResourceLoadStatistics::ScreenAPI::ColorDepth:
>+        return "colorDepth";
>+    case ResourceLoadStatistics::ScreenAPI::PixelDepth:
>+        return "pixelDepth";
>+    case ResourceLoadStatistics::ScreenAPI::AvailLeft:
>+        return "availLeft";
>+    case ResourceLoadStatistics::ScreenAPI::AvailTop:
>+        return "availTop";
>+    case ResourceLoadStatistics::ScreenAPI::AvailHeight:
>+        return "availHeight";
>+    case ResourceLoadStatistics::ScreenAPI::AvailWidth:
>+        return "availWidth";
>+    default:
>+        return "Not a recognized screen function";
>+    }
>+}
>+    
>+static void appendNavigatorOptionSet(StringBuilder& builder, const OptionSet<ResourceLoadStatistics::NavigatorAPI>& optionSet)
>+{
>+    if (optionSet.isEmpty())
>+        return;
>+    builder.appendLiteral("    ");
>+    builder.append("navigatorFunctionsAccessed:");
>+    builder.append('\n');
>+    for (OptionSet<ResourceLoadStatistics::NavigatorAPI>::iterator it = optionSet.begin(); it != optionSet.end(); ++it) {
>+        builder.appendLiteral("        ");
>+        builder.append(navigatorEnumToString(*it));
>+        builder.append('\n');
>+    }
>+}
>+    
>+static void appendScreenOptionSet(StringBuilder& builder, const OptionSet<ResourceLoadStatistics::ScreenAPI>& optionSet)
>+{
>+    if (optionSet.isEmpty())
>+        return;
>+    builder.appendLiteral("    ");
>+    builder.append("screenFunctionsAccessed:");
>+    builder.append('\n');
>+    for (OptionSet<ResourceLoadStatistics::ScreenAPI>::iterator it = optionSet.begin(); it != optionSet.end(); ++it) {
>+        builder.appendLiteral("        ");
>+        builder.append(screenEnumToString(*it));
>+        builder.append('\n');
>+    }
>+}
>+#endif
>+
> String ResourceLoadStatistics::toString() const
> {
>     StringBuilder builder;
>-    
>-    builder.appendLiteral("lastSeen");
>+    builder.appendLiteral("High level domain: ");
>+    builder.append(highLevelDomain);
>+    builder.append('\n');
>+    builder.appendLiteral("    lastSeen: ");
>     builder.appendNumber(lastSeen.secondsSinceEpoch().value());
>     builder.append('\n');
>     
>@@ -239,7 +404,7 @@ String ResourceLoadStatistics::toString() const
>     builder.appendLiteral("    mostRecentUserInteraction: ");
>     builder.appendNumber(mostRecentUserInteractionTime.secondsSinceEpoch().value());
>     builder.append('\n');
>-    appendBoolean(builder, "    grandfathered", grandfathered);
>+    appendBoolean(builder, "grandfathered", grandfathered);
>     builder.append('\n');
> 
>     // Storage access
>@@ -259,7 +424,9 @@ String ResourceLoadStatistics::toString() const
> 
>     // Prevalent Resource
>     appendBoolean(builder, "isPrevalentResource", isPrevalentResource);
>-    appendBoolean(builder, "    isVeryPrevalentResource", isVeryPrevalentResource);
>+    builder.append('\n');
>+    appendBoolean(builder, "isVeryPrevalentResource", isVeryPrevalentResource);
>+    builder.append('\n');
>     builder.appendLiteral("    dataRecordsRemoved: ");
>     builder.appendNumber(dataRecordsRemoved);
>     builder.append('\n');
>@@ -268,6 +435,16 @@ String ResourceLoadStatistics::toString() const
>     appendBoolean(builder, "isMarkedForCookieBlocking", isMarkedForCookieBlocking);
>     builder.append('\n');
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+    appendHashSet(builder, "fontsFailedToLoad", fontsFailedToLoad);
>+    appendHashSet(builder, "fontsLoaded", fontsLoaded);
>+    appendHashCountedSet(builder, "topFrameRegistrableDomainsWhichAccessedWebAPIs", topFrameRegistrableDomainsWhichAccessedWebAPIs);
>+    appendNavigatorOptionSet(builder, navigatorFunctionsAccessed);
>+    appendScreenOptionSet(builder, screenFunctionsAccessed);
>+    appendHashSet(builder, "canvasTextWritten", canvasActivityRecord.textWritten);
>+    appendBoolean(builder, "canvasReadData", canvasActivityRecord.wasDataRead);
>+    builder.append('\n');
>+#endif
>     builder.append('\n');
> 
>     return builder.toString();
>@@ -330,6 +507,15 @@ void ResourceLoadStatistics::merge(const ResourceLoadStatistics& other)
>     
>     // In-memory only
>     isMarkedForCookieBlocking |= other.isMarkedForCookieBlocking;
>+
>+#if ENABLE(WEB_API_STATISTICS)
>+    mergeHashSet(fontsFailedToLoad, other.fontsFailedToLoad);
>+    mergeHashSet(fontsLoaded, other.fontsLoaded);
>+    mergeHashCountedSet(topFrameRegistrableDomainsWhichAccessedWebAPIs, other.topFrameRegistrableDomainsWhichAccessedWebAPIs);
>+    canvasActivityRecord.mergeWith(other.canvasActivityRecord);
>+    navigatorFunctionsAccessed.add(other.navigatorFunctionsAccessed);
>+    screenFunctionsAccessed.add(other.screenFunctionsAccessed);
>+#endif
> }
> 
> String ResourceLoadStatistics::primaryDomain(const URL& url)
>diff --git a/Source/WebCore/loader/ResourceLoadStatistics.h b/Source/WebCore/loader/ResourceLoadStatistics.h
>index 27a17ff93551619013ebb8ec05ac25d3d561b668..7d54bd3d2cbf0da8d8eafbf1daa6e2cfa50ae316 100644
>--- a/Source/WebCore/loader/ResourceLoadStatistics.h
>+++ b/Source/WebCore/loader/ResourceLoadStatistics.h
>@@ -28,10 +28,15 @@
> #include "URL.h"
> #include <wtf/HashCountedSet.h>
> #include <wtf/HashSet.h>
>+#include <wtf/OptionSet.h>
> #include <wtf/WallTime.h>
> #include <wtf/text/StringHash.h>
> #include <wtf/text/WTFString.h>
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "CanvasActivityRecord.h"
>+#endif
>+
> namespace WebCore {
> 
> class KeyedDecoder;
>@@ -96,6 +101,35 @@ struct ResourceLoadStatistics {
> 
>     // In-memory only
>     bool isMarkedForCookieBlocking { false };
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    // This set represents the registrable domain of the top frame where web API
>+    // were used in the top frame or one of its subframes.
>+    HashCountedSet<String> topFrameRegistrableDomainsWhichAccessedWebAPIs;
>+    HashSet<String> fontsFailedToLoad;
>+    HashSet<String> fontsLoaded;
>+    CanvasActivityRecord canvasActivityRecord;
>+    enum class NavigatorAPI : uint64_t {
>+        AppVersion = 1 << 0,
>+        UserAgent = 1 << 1,
>+        Plugins = 1 << 2,
>+        MimeTypes = 1 << 3,
>+        CookieEnabled = 1 << 4,
>+        JavaEnabled = 1 << 5,
>+    };
>+    enum class ScreenAPI : uint64_t {
>+        Height = 1 << 0,
>+        Width = 1 << 1,
>+        ColorDepth = 1 << 2,
>+        PixelDepth = 1 << 3,
>+        AvailLeft = 1 << 4,
>+        AvailTop = 1 << 5,
>+        AvailHeight = 1 << 6,
>+        AvailWidth = 1 << 7,
>+    };
>+    OptionSet<NavigatorAPI> navigatorFunctionsAccessed;
>+    OptionSet<ScreenAPI> screenFunctionsAccessed;
>+#endif
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/page/Navigator.cpp b/Source/WebCore/page/Navigator.cpp
>index 7569ca854ec6bb0993e5c3a7d0ee82419f52b3a3..9566467bcfd8126c5ccfa2002fa83e61203e4096 100644
>--- a/Source/WebCore/page/Navigator.cpp
>+++ b/Source/WebCore/page/Navigator.cpp
>@@ -44,6 +44,9 @@
> #include <wtf/StdLibExtras.h>
> #include <wtf/WeakPtr.h>
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
> 
> namespace WebCore {
> using namespace WTF;
>@@ -74,6 +77,9 @@ String Navigator::appVersion() const
> {
>     if (!m_frame)
>         return String();
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::AppVersion);
>+#endif
>     String appVersion = NavigatorBase::appVersion();
>     if (shouldHideFourDot(*m_frame))
>         appVersion.replace("4.", "4_");
>@@ -82,7 +88,12 @@ String Navigator::appVersion() const
> 
> const String& Navigator::userAgent() const
> {
>-    if (m_userAgent.isNull() && m_frame && m_frame->page())
>+    if (!m_frame || !m_frame->page())
>+        return m_userAgent;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::UserAgent);
>+#endif
>+    if (m_userAgent.isNull())
>         m_userAgent = m_frame->loader().userAgent(m_frame->document()->url());
>     return m_userAgent;
> }
>@@ -136,6 +147,10 @@ void Navigator::share(ScriptExecutionContext& context, ShareData data, Ref<Defer
> 
> DOMPluginArray& Navigator::plugins()
> {
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (m_frame)
>+        ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::Plugins);
>+#endif
>     if (!m_plugins)
>         m_plugins = DOMPluginArray::create(m_frame);
>     return *m_plugins;
>@@ -143,6 +158,10 @@ DOMPluginArray& Navigator::plugins()
> 
> DOMMimeTypeArray& Navigator::mimeTypes()
> {
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (m_frame)
>+        ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::MimeTypes);
>+#endif
>     if (!m_mimeTypes)
>         m_mimeTypes = DOMMimeTypeArray::create(m_frame);
>     return *m_mimeTypes;
>@@ -152,6 +171,10 @@ bool Navigator::cookieEnabled() const
> {
>     if (!m_frame)
>         return false;
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::CookieEnabled);
>+#endif
> 
>     if (m_frame->page() && !m_frame->page()->settings().cookieEnabled())
>         return false;
>@@ -167,6 +190,10 @@ bool Navigator::javaEnabled() const
> {
>     if (!m_frame)
>         return false;
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logNavigatorAPIAccessed(*m_frame->document(), ResourceLoadStatistics::NavigatorAPI::JavaEnabled);
>+#endif
> 
>     if (!m_frame->settings().isJavaEnabled())
>         return false;
>diff --git a/Source/WebCore/page/Screen.cpp b/Source/WebCore/page/Screen.cpp
>index ff487d7cad06c754f00fbbd0244bdaa87ae9d2c0..e58feb40e68cd1e0fa97d9f0dd63a98e0c169ae3 100644
>--- a/Source/WebCore/page/Screen.cpp
>+++ b/Source/WebCore/page/Screen.cpp
>@@ -34,6 +34,10 @@
> #include "FrameView.h"
> #include "PlatformScreen.h"
> 
>+#if ENABLE(WEB_API_STATISTICS)
>+#include "ResourceLoadObserver.h"
>+#endif
>+
> namespace WebCore {
> 
> Screen::Screen(Frame* frame)
>@@ -45,6 +49,9 @@ unsigned Screen::height() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::Height);
>+#endif
>     long height = static_cast<long>(screenRect(m_frame->view()).height());
>     return static_cast<unsigned>(height);
> }
>@@ -53,6 +60,9 @@ unsigned Screen::width() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::Width);
>+#endif
>     long width = static_cast<long>(screenRect(m_frame->view()).width());
>     return static_cast<unsigned>(width);
> }
>@@ -61,6 +71,9 @@ unsigned Screen::colorDepth() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::ColorDepth);
>+#endif
>     return static_cast<unsigned>(screenDepth(m_frame->view()));
> }
> 
>@@ -68,6 +81,9 @@ unsigned Screen::pixelDepth() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::PixelDepth);
>+#endif
>     return static_cast<unsigned>(screenDepth(m_frame->view()));
> }
> 
>@@ -75,6 +91,9 @@ int Screen::availLeft() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::AvailLeft);
>+#endif
>     return static_cast<int>(screenAvailableRect(m_frame->view()).x());
> }
> 
>@@ -82,6 +101,9 @@ int Screen::availTop() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::AvailTop);
>+#endif
>     return static_cast<int>(screenAvailableRect(m_frame->view()).y());
> }
> 
>@@ -89,6 +111,9 @@ unsigned Screen::availHeight() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::AvailHeight);
>+#endif
>     return static_cast<unsigned>(screenAvailableRect(m_frame->view()).height());
> }
> 
>@@ -96,6 +121,9 @@ unsigned Screen::availWidth() const
> {
>     if (!m_frame)
>         return 0;
>+#if ENABLE(WEB_API_STATISTICS)
>+    ResourceLoadObserver::shared().logScreenAPIAccessed(*m_frame->document(), ResourceLoadStatistics::ScreenAPI::AvailWidth);
>+#endif
>     return static_cast<unsigned>(screenAvailableRect(m_frame->view()).width());
> }
> 
>diff --git a/Source/WebKit/Configurations/FeatureDefines.xcconfig b/Source/WebKit/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Source/WebKit/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebKit/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Source/WebKit/Shared/WebCoreArgumentCoders.cpp b/Source/WebKit/Shared/WebCoreArgumentCoders.cpp
>index 9dab37dd60302bf2ea0e296c396809ca6cd80d70..354ae209aad646c24c8cc46d0557fc99a13d4c12 100644
>--- a/Source/WebKit/Shared/WebCoreArgumentCoders.cpp
>+++ b/Source/WebKit/Shared/WebCoreArgumentCoders.cpp
>@@ -2664,6 +2664,18 @@ void ArgumentCoder<ResourceLoadStatistics>::encode(Encoder& encoder, const WebCo
>     encoder << statistics.isPrevalentResource;
>     encoder << statistics.isVeryPrevalentResource;
>     encoder << statistics.dataRecordsRemoved;
>+    
>+#if ENABLE(WEB_API_STATISTICS)
>+    encoder << statistics.fontsFailedToLoad;
>+    encoder << statistics.fontsLoaded;
>+    encoder << statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs;
>+    
>+    encoder << statistics.canvasActivityRecord;
>+    
>+    encoder << statistics.navigatorFunctionsAccessed;
>+    encoder << statistics.screenFunctionsAccessed;
>+#endif
>+    
> }
> 
> std::optional<ResourceLoadStatistics> ArgumentCoder<ResourceLoadStatistics>::decode(Decoder& decoder)
>@@ -2723,7 +2735,26 @@ std::optional<ResourceLoadStatistics> ArgumentCoder<ResourceLoadStatistics>::dec
>     
>     if (!decoder.decode(statistics.dataRecordsRemoved))
>         return std::nullopt;
>-
>+#if ENABLE(WEB_API_STATISTICS)
>+    if (!decoder.decode(statistics.fontsFailedToLoad))
>+        return std::nullopt;
>+    
>+    if (!decoder.decode(statistics.fontsLoaded))
>+        return std::nullopt;
>+    
>+    if (!decoder.decode(statistics.topFrameRegistrableDomainsWhichAccessedWebAPIs))
>+        return std::nullopt;
>+    
>+    if (!decoder.decode(statistics.canvasActivityRecord))
>+        return std::nullopt;
>+    
>+    if (!decoder.decode(statistics.navigatorFunctionsAccessed))
>+        return std::nullopt;
>+    
>+    if (!decoder.decode(statistics.screenFunctionsAccessed))
>+        return std::nullopt;
>+#endif
>+    
>     return WTFMove(statistics);
> }
> 
>diff --git a/Source/WebKit/UIProcess/ResourceLoadStatisticsMemoryStore.cpp b/Source/WebKit/UIProcess/ResourceLoadStatisticsMemoryStore.cpp
>index a7992d6c75b8e75856dc2380345ebf71caf0c58c..6a9206723a89bde274bfb8ca0d97edc6d90d8ba0 100644
>--- a/Source/WebKit/UIProcess/ResourceLoadStatisticsMemoryStore.cpp
>+++ b/Source/WebKit/UIProcess/ResourceLoadStatisticsMemoryStore.cpp
>@@ -46,7 +46,7 @@
> namespace WebKit {
> using namespace WebCore;
> 
>-constexpr unsigned statisticsModelVersion { 12 };
>+constexpr unsigned statisticsModelVersion { 13 };
> constexpr unsigned maxNumberOfRecursiveCallsInRedirectTraceBack { 50 };
> constexpr Seconds minimumStatisticsProcessingInterval { 5_s };
> constexpr unsigned operatingDatesWindow { 30 };
>diff --git a/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig b/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>+++ b/Source/WebKitLegacy/mac/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 0dda0c46aecbc97a75942fa7d7c1c1d65e3caaf1..4f0132181211d68d08bd9f89fbd725387855328d 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added a new flag ENABLE_WEB_API_STATISTICS to wrap all code in compile time flags for when 
>+        we would like to collect various web API statistics for analysis. 
>+
>+        * TestWebKitAPI/Configurations/FeatureDefines.xcconfig:
>+
> 2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
> 
>         Added dumping function for testing resource load statistics
>diff --git a/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig b/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>index dfa4a259773f597db7eae6005dd81beb3d68de87..75739d69e14f4e5fd9c08781c0b9fc7e65cfaaa1 100644
>--- a/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>+++ b/Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig
>@@ -358,6 +358,8 @@ ENABLE_WEBGPU_watchos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_appletvos = ENABLE_WEBGPU;
> ENABLE_WEBGPU_macosx = ENABLE_WEBGPU;
> 
>+ENABLE_WEB_API_STATISTICS = ENABLE_WEB_API_STATISTICS;
>+
> ENABLE_WEB_AUDIO = ENABLE_WEB_AUDIO;
> 
> ENABLE_WEB_AUTHN = $(ENABLE_WEB_AUTHN_$(WK_PLATFORM_NAME));
>@@ -374,4 +376,4 @@ ENABLE_WIRELESS_PLAYBACK_TARGET = ENABLE_WIRELESS_PLAYBACK_TARGET;
> 
> ENABLE_XSLT = ENABLE_XSLT;
> 
>-FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>+FEATURE_DEFINES = $(ENABLE_3D_TRANSFORMS) $(ENABLE_ACCELERATED_2D_CANVAS) $(ENABLE_ACCELERATED_OVERFLOW_SCROLLING) $(ENABLE_APPLE_PAY) $(ENABLE_APPLE_PAY_SESSION_V3) $(ENABLE_APPLE_PAY_SESSION_V4) $(ENABLE_APPLICATION_MANIFEST) $(ENABLE_ATTACHMENT_ELEMENT) $(ENABLE_AVF_CAPTIONS) $(ENABLE_CACHE_PARTITIONING) $(ENABLE_CHANNEL_MESSAGING) $(ENABLE_CONTENT_FILTERING) $(ENABLE_CSS3_TEXT) $(ENABLE_CSS_ANIMATIONS_LEVEL_2) $(ENABLE_CSS_BOX_DECORATION_BREAK) $(ENABLE_CSS_COMPOSITING) $(ENABLE_CSS_DEVICE_ADAPTATION) $(ENABLE_CSS_IMAGE_ORIENTATION) $(ENABLE_CSS_IMAGE_RESOLUTION) $(ENABLE_CSS_SCROLL_SNAP) $(ENABLE_CSS_SELECTORS_LEVEL4) $(ENABLE_CSS_TRAILING_WORD) $(ENABLE_CURSOR_VISIBILITY) $(ENABLE_CUSTOM_SCHEME_HANDLER) $(ENABLE_DASHBOARD_SUPPORT) $(ENABLE_DATA_INTERACTION) $(ENABLE_DATACUE_VALUE) $(ENABLE_DATALIST_ELEMENT) $(ENABLE_DEVICE_ORIENTATION) $(ENABLE_DRAG_SUPPORT) $(ENABLE_ENCRYPTED_MEDIA) $(ENABLE_EXPERIMENTAL_FEATURES) $(ENABLE_FAST_JIT_PERMISSIONS) $(ENABLE_FILTERS_LEVEL_2) $(ENABLE_FTL_JIT) $(ENABLE_FULLSCREEN_API) $(ENABLE_GAMEPAD) $(ENABLE_GEOLOCATION) $(ENABLE_ICONDATABASE) $(ENABLE_INDEXED_DATABASE) $(ENABLE_INDEXED_DATABASE_IN_WORKERS) $(ENABLE_INPUT_TYPE_COLOR) $(ENABLE_INPUT_TYPE_DATE) $(ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE) $(ENABLE_INPUT_TYPE_DATETIMELOCAL) $(ENABLE_INPUT_TYPE_MONTH) $(ENABLE_INPUT_TYPE_TIME) $(ENABLE_INPUT_TYPE_WEEK) $(ENABLE_INTERSECTION_OBSERVER) $(ENABLE_INTL) $(ENABLE_IOS_GESTURE_EVENTS) $(ENABLE_IOS_TOUCH_EVENTS) $(ENABLE_JIT) $(ENABLE_JS_ASYNC_ITERATION) $(ENABLE_KEYBOARD_CODE_ATTRIBUTE) $(ENABLE_KEYBOARD_KEY_ATTRIBUTE) $(ENABLE_LAYOUT_FORMATTING_CONTEXT) $(ENABLE_LEGACY_CSS_VENDOR_PREFIXES) $(ENABLE_LEGACY_CUSTOM_PROTOCOL_MANAGER) $(ENABLE_LEGACY_ENCRYPTED_MEDIA) $(ENABLE_LETTERPRESS) $(ENABLE_MAC_GESTURE_EVENTS) $(ENABLE_MAC_VIDEO_TOOLBOX) $(ENABLE_MATHML) $(ENABLE_MEDIA_CAPTURE) $(ENABLE_MEDIA_CONTROLS_SCRIPT) $(ENABLE_MEDIA_SESSION) $(ENABLE_MEDIA_SOURCE) $(ENABLE_MEDIA_STATISTICS) $(ENABLE_MEDIA_STREAM) $(ENABLE_METER_ELEMENT) $(ENABLE_MHTML) $(ENABLE_MOUSE_CURSOR_SCALE) $(ENABLE_NAVIGATOR_CONTENT_UTILS) $(ENABLE_NAVIGATOR_STANDALONE) $(ENABLE_NOTIFICATIONS) $(ENABLE_PAYMENT_REQUEST) $(ENABLE_PDFKIT_PLUGIN) $(ENABLE_POINTER_LOCK) $(ENABLE_PUBLIC_SUFFIX_LIST) $(ENABLE_QUOTA) $(ENABLE_REMOTE_INSPECTOR) $(ENABLE_RESOLUTION_MEDIA_QUERY) $(ENABLE_RESOURCE_USAGE) $(ENABLE_RUBBER_BANDING) $(ENABLE_SERVICE_CONTROLS) $(ENABLE_SERVICE_WORKER) $(ENABLE_SPEECH_SYNTHESIS) $(ENABLE_STREAMS_API) $(ENABLE_SUBTLE_CRYPTO) $(ENABLE_SVG_FONTS) $(ENABLE_TELEPHONE_NUMBER_DETECTION) $(ENABLE_TEXT_AUTOSIZING) $(ENABLE_TOUCH_EVENTS) $(ENABLE_USER_MESSAGE_HANDLERS) $(ENABLE_USERSELECT_ALL) $(ENABLE_VARIATION_FONTS) $(ENABLE_VIDEO) $(ENABLE_VIDEO_PRESENTATION_MODE) $(ENABLE_VIDEO_TRACK) $(ENABLE_VIDEO_USES_ELEMENT_FULLSCREEN) $(ENABLE_WEB_API_STATISTICS) $(ENABLE_WEB_AUDIO) $(ENABLE_WEB_AUTHN) $(ENABLE_WEB_RTC) $(ENABLE_WEBASSEMBLY) $(ENABLE_WEBASSEMBLY_STREAMING_API) $(ENABLE_WEBGL) $(ENABLE_WEBGL2) $(ENABLE_WEBGPU) $(ENABLE_WIRELESS_PLAYBACK_TARGET) $(ENABLE_XSLT);
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 79d6cc866e8b67a8d0396c7878af8e97a55bee0e..01a0eb25891c1bf66b799e7b49525e0232a2d822 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,24 @@
>+2018-08-31  Woodrow Wang  <woodrow_wang@apple.com>
>+
>+        Added Web API Statistics Collection.
>+        https://bugs.webkit.org/show_bug.cgi?id=1897773
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added new tests and expectations for the web API statistics data collection.
>+
>+        * TestExpectations:
>+        * http/tests/webAPIStatistics/canvas-read-and-write-data-collection-expected.txt: Added.
>+        * http/tests/webAPIStatistics/canvas-read-and-write-data-collection.html: Added.
>+        * http/tests/webAPIStatistics/font-load-data-collection-expected.txt: Added.
>+        * http/tests/webAPIStatistics/font-load-data-collection.html: Added.
>+        * http/tests/webAPIStatistics/navigator-functions-accessed-data-collection-expected.txt: Added.
>+        * http/tests/webAPIStatistics/navigator-functions-accessed-data-collection.html: Added.
>+        * http/tests/webAPIStatistics/screen-functions-accessed-data-collection-expected.txt: Added.
>+        * http/tests/webAPIStatistics/screen-functions-accessed-data-collection.html: Added.
>+        * platform/ios-wk2/TestExpectations:
>+        * platform/mac-wk2/TestExpectations:
>+
> 2018-08-31  Zalan Bujtas  <zalan@apple.com>
> 
>         [LFC] Add margin box verification back now that Display::Box has non-computed horizontal margin.
>diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
>index 3193ba318f7c2e78767641b59922e8c4c6805e2e..c4be4578b07b6cbf0a911698f3c3a8762b2f314b 100644
>--- a/LayoutTests/TestExpectations
>+++ b/LayoutTests/TestExpectations
>@@ -2241,3 +2241,5 @@ webkit.org/b/185308 legacy-animation-engine/animations/combo-transform-translate
> 
> # This test is currently only relevant on mac-wk2
> fast/canvas/webgl/context-update-on-display-configuration.html [ Skip ]
>+
>+webkit.org/b/187773 http/tests/webAPIStatistics [ Skip ]
>diff --git a/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection-expected.txt b/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..59e12cc4c1469f31351d788843a883829aa0586b
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection-expected.txt
>@@ -0,0 +1,30 @@
>+Tests for canvas read and write data collection in ResourceLoadStatistics plist by rendering and reading text on the canvas and dumping the entire resource load statistics map.
>+
>+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
>+
>+
>+PASS successfullyParsed is true
>+
>+TEST COMPLETE
>+
>+Resource load statistics:
>+
>+High level domain: 127.0.0.1
>+    lastSeen: 0
>+    hadUserInteraction: No
>+    mostRecentUserInteraction: -1
>+    grandfathered: No
>+    isPrevalentResource: No
>+    isVeryPrevalentResource: No
>+    dataRecordsRemoved: 0
>+    isMarkedForCookieBlocking: No
>+    fontsLoaded:
>+        -webkit-standard
>+        -webkit-sans-serif
>+        -webkit-monospace
>+    topFrameRegistrableDomainsWhichAccessedWebAPIs:
>+        127.0.0.1: 8
>+    canvasTextWritten:
>+        suspicious invisible text
>+    canvasReadData: Yes
>+
>diff --git a/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection.html b/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..3c183d2ea0d892af815e7bb4e76a2916349570fe
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/canvas-read-and-write-data-collection.html
>@@ -0,0 +1,39 @@
>+<!DOCTYPE html>
>+<head>
>+    <meta charset="UTF-8">
>+    <title>Test for canvas read and write data collection in resource load statistics</title>
>+    <script src="/js-test-resources/js-test.js"></script>
>+</head>
>+<body>
>+<script>
>+    description("Tests for canvas read and write data collection in ResourceLoadStatistics plist by rendering and reading text on the canvas and dumping the entire resource load statistics map.");
>+    const hostUnderTest = "127.0.0.1:8000";
>+    const statisticsUrl = "http://" + hostUnderTest + "/temp";
>+
>+    function completeTest() {
>+        testRunner.setDumpResourceLoadStatistics(true);
>+            
>+        testRunner.statisticsResetToConsistentState(function() {
>+            testRunner.notifyDone();
>+        });
>+    }
>+
>+    function runTestRunnerTest() {
>+        testRunner.setStatisticsNotifyPagesWhenDataRecordsWereScanned(true);
>+
>+        testRunner.installStatisticsDidScanDataRecordsCallback(completeTest);
>+    
>+        var canvas = document.createElement('canvas');
>+        var context = canvas.getContext('2d');
>+        context.fillText('suspicious invisible text', 2, 15);
>+        canvas.toDataURL();
>+    }
>+
>+    if (document.location.host === hostUnderTest && window.testRunner && window.internals) {
>+        testRunner.waitUntilDone();
>+        internals.setResourceLoadStatisticsEnabled(true);
>+        runTestRunnerTest();
>+    }
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection-expected.txt b/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..20f2368631305f0c32a866eedf4cf676140adf21
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection-expected.txt
>@@ -0,0 +1,35 @@
>+Tests for font loading data collection in ResourceLoadStatistics plist by loading fonts and dumping the entire resource load statistics map. The test tries to load various fonts through a comma separated font-family list to draw a string with many m's since they differ in width more prominently among fonts.
>+
>+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
>+
>+
>+PASS successfullyParsed is true
>+
>+TEST COMPLETE
>+mmmmmmmmmmlli
>+Resource load statistics:
>+
>+High level domain: 127.0.0.1
>+    lastSeen: 0
>+    hadUserInteraction: No
>+    mostRecentUserInteraction: -1
>+    grandfathered: No
>+    isPrevalentResource: No
>+    isVeryPrevalentResource: No
>+    dataRecordsRemoved: 0
>+    isMarkedForCookieBlocking: No
>+    fontsFailedToLoad:
>+        Fransiscan
>+        Andale
>+        notARealFont
>+    fontsLoaded:
>+        notARealFont
>+        Andale
>+        -webkit-monospace
>+        Fransiscan
>+        -webkit-standard
>+        -webkit-serif
>+    topFrameRegistrableDomainsWhichAccessedWebAPIs:
>+        127.0.0.1: 9
>+    canvasReadData: No
>+
>diff --git a/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection.html b/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..a9a2c51ae5dd7fd9c5b51a43a5491baaa995233f
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/font-load-data-collection.html
>@@ -0,0 +1,44 @@
>+<!DOCTYPE html>
>+<head>
>+    <meta charset="UTF-8">
>+    <title>Test for font loading data collection in resource load statistics</title>
>+    <script src="/js-test-resources/js-test.js"></script>
>+</head>
>+<body>
>+<script>
>+    description("Tests for font loading data collection in ResourceLoadStatistics plist by loading fonts and dumping the entire resource load statistics map. The test tries to load various fonts through a comma separated font-family list to draw a string with many m's since they differ in width more prominently among fonts.");
>+    const hostUnderTest = "127.0.0.1:8000";
>+    const statisticsUrl = "http://" + hostUnderTest + "/temp";
>+
>+    function completeTest() {
>+        testRunner.setDumpResourceLoadStatistics(true);
>+            
>+        testRunner.statisticsResetToConsistentState(function() {
>+            testRunner.notifyDone();
>+        });
>+    }
>+
>+    function runTestRunnerTest() {
>+        testRunner.setStatisticsNotifyPagesWhenDataRecordsWereScanned(true);
>+
>+        testRunner.installStatisticsDidScanDataRecordsCallback(completeTest);
>+
>+        var body = document.getElementsByTagName('body')[0]
>+    
>+        var span = document.createElement('span');
>+        var testFontString = 'mmmmmmmmmmlli';
>+        
>+        span.innerHTML = testFontString;
>+        span.style.fontFamily = 'sans-serif';
>+        span.style.fontFamily = 'Andale, Fransiscan, notARealFont, serif';
>+        body.appendChild(span);
>+    }
>+
>+    if (document.location.host === hostUnderTest && window.testRunner && window.internals) {
>+        testRunner.waitUntilDone();
>+        internals.setResourceLoadStatisticsEnabled(true);
>+        runTestRunnerTest();
>+    }
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection-expected.txt b/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..f802db9ff09094f7578853994e033b0a6c174f4d
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection-expected.txt
>@@ -0,0 +1,34 @@
>+Tests for navigator functions accessed data collection in ResourceLoadStatistics plist by querying for all the navigator properties and dumping the entire resource load statistics map.
>+
>+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
>+
>+
>+PASS successfullyParsed is true
>+
>+TEST COMPLETE
>+
>+Resource load statistics:
>+
>+High level domain: 127.0.0.1
>+    lastSeen: 0
>+    hadUserInteraction: No
>+    mostRecentUserInteraction: -1
>+    grandfathered: No
>+    isPrevalentResource: No
>+    isVeryPrevalentResource: No
>+    dataRecordsRemoved: 0
>+    isMarkedForCookieBlocking: No
>+    fontsLoaded:
>+        -webkit-standard
>+        -webkit-monospace
>+    topFrameRegistrableDomainsWhichAccessedWebAPIs:
>+        127.0.0.1: 12
>+    navigatorFunctionsAccessed:
>+        appVersion
>+        userAgent
>+        plugins
>+        mimeTypes
>+        cookieEnabled
>+        javaEnabled
>+    canvasReadData: No
>+
>diff --git a/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection.html b/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..a905e405c1f32a6b17d62d23161b07a1f4cc9619
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/navigator-functions-accessed-data-collection.html
>@@ -0,0 +1,41 @@
>+<!DOCTYPE html>
>+<head>
>+    <meta charset="UTF-8">
>+    <title>Test for navigator functions accessed data collection in resource load statistics</title>
>+    <script src="/js-test-resources/js-test.js"></script>
>+</head>
>+<body>
>+<script>
>+    description("Tests for navigator functions accessed data collection in ResourceLoadStatistics plist by querying for all the navigator properties and dumping the entire resource load statistics map.");
>+    const hostUnderTest = "127.0.0.1:8000";
>+    const statisticsUrl = "http://" + hostUnderTest + "/temp";
>+
>+    function completeTest() {
>+        testRunner.setDumpResourceLoadStatistics(true);
>+            
>+        testRunner.statisticsResetToConsistentState(function() {
>+            testRunner.notifyDone();
>+        });
>+    }
>+
>+    function runTestRunnerTest() {
>+        testRunner.setStatisticsNotifyPagesWhenDataRecordsWereScanned(true);
>+
>+        testRunner.installStatisticsDidScanDataRecordsCallback(completeTest);
>+    
>+        var useragent = navigator.userAgent;
>+        var javaenabled = navigator.javaEnabled();
>+        var cookieEnabled = navigator.cookieEnabled;
>+        var mimetypes = navigator.mimeTypes;
>+        var plugins = navigator.plugins;
>+        var appversion = navigator.appVersion;
>+    }
>+
>+    if (document.location.host === hostUnderTest && window.testRunner && window.internals) {
>+        testRunner.waitUntilDone();
>+        internals.setResourceLoadStatisticsEnabled(true);
>+        runTestRunnerTest();
>+    }
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection-expected.txt b/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..b9e689fee751cce4fe9a85bf5ea3a050a08de1c1
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection-expected.txt
>@@ -0,0 +1,36 @@
>+Tests for screen functions accessed data collection in ResourceLoadStatistics plist by querying for all the screen properties and dumping the entire resource load statistics map.
>+
>+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
>+
>+
>+PASS successfullyParsed is true
>+
>+TEST COMPLETE
>+
>+Resource load statistics:
>+
>+High level domain: 127.0.0.1
>+    lastSeen: 0
>+    hadUserInteraction: No
>+    mostRecentUserInteraction: -1
>+    grandfathered: No
>+    isPrevalentResource: No
>+    isVeryPrevalentResource: No
>+    dataRecordsRemoved: 0
>+    isMarkedForCookieBlocking: No
>+    fontsLoaded:
>+        -webkit-standard
>+        -webkit-monospace
>+    topFrameRegistrableDomainsWhichAccessedWebAPIs:
>+        127.0.0.1: 13
>+    screenFunctionsAccessed:
>+        height
>+        width
>+        colorDepth
>+        pixelDepth
>+        availLeft
>+        availTop
>+        availHeight
>+        availWidth
>+    canvasReadData: No
>+
>diff --git a/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection.html b/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..a0e7d68cf438623b39b8f4f590886fc40eb9d259
>--- /dev/null
>+++ b/LayoutTests/http/tests/webAPIStatistics/screen-functions-accessed-data-collection.html
>@@ -0,0 +1,43 @@
>+<!DOCTYPE html>
>+<head>
>+    <meta charset="UTF-8">
>+    <title>Test for screen functions accessed data collection in resource load statistics</title>
>+    <script src="/js-test-resources/js-test.js"></script>
>+</head>
>+<body>
>+<script>
>+    description("Tests for screen functions accessed data collection in ResourceLoadStatistics plist by querying for all the screen properties and dumping the entire resource load statistics map.");
>+    const hostUnderTest = "127.0.0.1:8000";
>+    const statisticsUrl = "http://" + hostUnderTest + "/temp";
>+
>+    function completeTest() {
>+        testRunner.setDumpResourceLoadStatistics(true);
>+            
>+        testRunner.statisticsResetToConsistentState(function() {
>+            testRunner.notifyDone();
>+        });
>+    }
>+
>+    function runTestRunnerTest() {
>+        testRunner.setStatisticsNotifyPagesWhenDataRecordsWereScanned(true);
>+
>+        testRunner.installStatisticsDidScanDataRecordsCallback(completeTest);
>+    
>+        var availTop = screen.availTop;
>+        var colorDepth = screen.colorDepth;
>+        var pixelDepth = screen.pixelDepth;
>+        var height = screen.height;
>+        var width = screen.width;
>+        var availLeft = screen.availLeft;
>+        var availHeight = screen.availHeight;
>+        var availWidth = screen.availWidth;
>+    }
>+
>+    if (document.location.host === hostUnderTest && window.testRunner && window.internals) {
>+        testRunner.waitUntilDone();
>+        internals.setResourceLoadStatisticsEnabled(true);
>+        runTestRunnerTest();
>+    }
>+</script>
>+</body>
>+</html>
>\ No newline at end of file
>diff --git a/LayoutTests/platform/ios-wk2/TestExpectations b/LayoutTests/platform/ios-wk2/TestExpectations
>index cb19c7582bc29d4711149203d33c9c9293a00b63..378adbce24d0e277ff09f8d7755935d0007a1461 100644
>--- a/LayoutTests/platform/ios-wk2/TestExpectations
>+++ b/LayoutTests/platform/ios-wk2/TestExpectations
>@@ -65,6 +65,8 @@ http/tests/security/contentSecurityPolicy/manifest-src-allowed.html [ Pass ]
> http/tests/security/contentSecurityPolicy/manifest-src-blocked.html [ Pass ]
> applicationmanifest/ [ Pass ]
> 
>+webkit.org/b/187773 http/tests/webAPIStatistics [ Pass ]
>+
> #//////////////////////////////////////////////////////////////////////////////////////////
> # End platform-specific directories.
> #//////////////////////////////////////////////////////////////////////////////////////////
>diff --git a/LayoutTests/platform/mac-wk2/TestExpectations b/LayoutTests/platform/mac-wk2/TestExpectations
>index 8eebfdfff757c8c226aa1fc2b8f8c20c164395f2..f334c1b4b2724e62f254a8de57af72f1a8f840d2 100644
>--- a/LayoutTests/platform/mac-wk2/TestExpectations
>+++ b/LayoutTests/platform/mac-wk2/TestExpectations
>@@ -51,6 +51,8 @@ applicationmanifest/ [ Pass ]
> 
> webkit.org/b/187183 http/tests/security/pasteboard-file-url.html [ Pass ]
> 
>+webkit.org/b/187773 http/tests/webAPIStatistics [ Pass ]
>+
> #//////////////////////////////////////////////////////////////////////////////////////////
> # End platform-specific directories.
> #//////////////////////////////////////////////////////////////////////////////////////////

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