Master merge

This merges master into release to replace Redwood.

# Conflicts:
#	CLOBBER
#	build/moz.configure/old.configure
#	config/milestone.txt
#	config/moz.build
#	config/system-headers
#	dom/abort/AbortController.cpp
#	dom/abort/AbortController.h
#	dom/abort/AbortSignal.cpp
#	dom/abort/AbortSignal.h
#	dom/abort/moz.build
#	dom/abort/tests/moz.build
#	dom/animation/KeyframeEffect.cpp
#	dom/base/CustomElementRegistry.cpp
#	dom/base/DocGroup.cpp
#	dom/base/ResizeObserverController.cpp
#	dom/base/ResizeObserverController.h
#	dom/base/nsContentUtils.cpp
#	dom/base/nsContentUtils.h
#	dom/base/nsDocument.cpp
#	dom/base/nsIDocument.h
#	dom/fetch/FetchObserver.cpp
#	dom/fetch/FetchObserver.h
#	dom/heapsnapshot/AutoMemMap.cpp
#	dom/heapsnapshot/AutoMemMap.h
#	dom/heapsnapshot/CoreDump.proto
#	dom/heapsnapshot/HeapSnapshot.cpp
#	dom/heapsnapshot/HeapSnapshotTempFileHelperChild.h
#	dom/heapsnapshot/HeapSnapshotTempFileHelperParent.cpp
#	dom/heapsnapshot/HeapSnapshotTempFileHelperParent.h
#	dom/heapsnapshot/PHeapSnapshotTempFileHelper.ipdl
#	dom/heapsnapshot/moz.build
#	dom/heapsnapshot/tests/gtest/moz.build
#	dom/html/nsGenericHTMLElement.h
#	dom/media/platforms/PlatformDecoderModule.h
#	dom/media/platforms/moz.build
#	dom/script/ModuleLoadRequest.cpp
#	dom/script/ModuleLoadRequest.h
#	dom/script/ModuleScript.cpp
#	dom/script/ModuleScript.h
#	dom/script/ScriptElement.cpp
#	dom/script/ScriptElement.h
#	dom/script/ScriptLoadHandler.cpp
#	dom/script/ScriptLoadHandler.h
#	dom/script/ScriptLoader.cpp
#	dom/script/ScriptLoader.h
#	dom/script/ScriptSettings.cpp
#	dom/script/ScriptSettings.h
#	dom/script/nsIScriptElement.h
#	dom/script/nsIScriptLoaderObserver.idl
#	dom/webidl/HTMLLinkElement.webidl
#	gfx/gl/moz.build
#	gfx/graphite2/src/moz.build
#	gfx/layers/moz.build
#	js/ductwork/inspector/moz.build
#	js/ductwork/moz.build
#	js/src/gc/Heap.h
#	js/src/moz.build
#	js/src/vm/UnboxedObject-inl.h
#	js/src/vm/UnboxedObject.cpp
#	js/src/vm/UnboxedObject.h
#	layout/base/crashtests/crashtests.list
#	layout/build/moz.build
#	layout/generic/AspectRatio.h
#	layout/generic/crashtests/crashtests.list
#	layout/reftests/bidi/reftest-stylo.list
#	layout/reftests/reftest-stylo.list
#	layout/reftests/table-bordercollapse/reftest.list
#	layout/reftests/writing-mode/reftest-stylo.list
#	layout/style/StyleSheet.cpp
#	layout/style/nsRuleNode.cpp
#	layout/style/nsStyleStruct.cpp
#	layout/style/nsStyleStruct.h
#	modules/libpref/init/all.js
#	nsprpub/pr/src/linking/prlink.c
#	parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/AttributeName.java
#	parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/ElementName.java
#	parser/html/nsHtml5AtomList.h
#	parser/html/nsHtml5AttributeName.cpp
#	parser/html/nsHtml5AttributeName.h
#	parser/html/nsHtml5ElementName.cpp
#	parser/html/nsHtml5ElementName.h
#	parser/html/nsHtml5TreeBuilderCppSupplement.h
#	parser/htmlparser/nsElementTable.cpp
#	parser/htmlparser/nsHTMLTagList.h
#	security/nss/lib/nss/nss.h
#	security/nss/lib/softoken/pkcs11.c
#	security/nss/lib/softoken/softkver.h
#	security/nss/lib/util/nssutil.h
#	testing/web-platform/tests/tools/html5lib/html5lib/html5parser.py
#	testing/web-platform/tests/tools/html5lib/html5lib/treebuilders/_base.py
#	toolkit/modules/AppConstants.jsm

1 files changed, 10 insertions, 15 deletions

diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 314beac37..0a3a6d697 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -580,7 +580,7 @@ pref("media.mediasource.webm.enabled", true);
 pref("media.mediasource.webm.audio.enabled", true);
 
 #ifdef MOZ_AV1
-pref("media.av1.enabled", false);
+pref("media.av1.enabled", true);
 #endif
 
 // Use new MediaFormatReader architecture for plain ogg.
@@ -1260,10 +1260,7 @@ pref("privacy.trackingprotection.pbmode.enabled",  false);
 pref("dom.event.contextmenu.enabled",       true);
 pref("dom.event.clipboardevents.enabled",   true);
 
-/*
 pref("dom.webcomponents.enabled",           false);
-pref("dom.webcomponents.customelements.enabled", false);
-*/
 
 pref("javascript.enabled",                  true);
 // Enable Array.prototype.values
@@ -1275,7 +1272,7 @@ pref("javascript.options.strict.debug",     false);
 pref("javascript.options.unboxed_objects",  false);
 pref("javascript.options.baselinejit",      true);
 pref("javascript.options.ion",              true);
-pref("javascript.options.ion.inlining",     false);
+pref("javascript.options.ion.inlining",     true);
 pref("javascript.options.asmjs",            true);
 pref("javascript.options.wasm",             true);
 // wasm jit crashes in 32bit builds because of 64bit casts so
@@ -2486,6 +2483,9 @@ pref("layout.css.isolation.enabled", true);
 // Is support for CSS Filters enabled?
 pref("layout.css.filters.enabled", true);
 
+// Is support for scrollbar-width property enabled?
+pref("layout.css.scrollbar-width.enabled", false);
+
 // Set the threshold distance in CSS pixels below which scrolling will snap to
 // an edge, when scroll snapping is set to "proximity".
 pref("layout.css.scroll-snap.proximity-threshold", 200);
@@ -2710,14 +2710,12 @@ pref("layout.idle_period.required_quiescent_frames", 2);
 pref("layout.idle_period.time_limit", 1);
 
 // Is support for the Web Animations API enabled?
-// Before enabling this by default, make sure also CSSPseudoElement interface
-// has been spec'ed properly, or we should add a separate pref for
-// CSSPseudoElement interface. See Bug 1174575 for further details.
-#ifdef RELEASE_OR_BETA
-pref("dom.animations-api.core.enabled", false);
-#else
 pref("dom.animations-api.core.enabled", true);
-#endif
+
+pref("dom.animations-api.timelines.enabled", false);
+pref("dom.animations-api.implicit-keyframes.enabled", false);
+pref("dom.animations-api.compositing.enabled", false);
+pref("dom.animations-api.getAnimations.enabled", false);
 
 // Is support for the Element.animate() function (a subset of the Web Animations
 // API) enabled?
@@ -5340,9 +5338,6 @@ pref("dom.audiochannel.mutedByDefault", false);
 // HTML <dialog> element
 pref("dom.dialog_element.enabled", false);
 
-// Enable <details> and <summary> tags.
-pref("dom.details_element.enabled", true);
-
 // Secure Element API
 #ifdef MOZ_SECUREELEMENT
 pref("dom.secureelement.enabled", false);