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, 13 insertions, 4 deletions

diff --git a/dom/webidl/ShadowRoot.webidl b/dom/webidl/ShadowRoot.webidl
index a6c6de254..83acd4161 100644
--- a/dom/webidl/ShadowRoot.webidl
+++ b/dom/webidl/ShadowRoot.webidl
@@ -10,18 +10,27 @@
  * liability, trademark and document use rules apply.
  */
 
+// https://dom.spec.whatwg.org/#enumdef-shadowrootmode
+enum ShadowRootMode {
+  "open",
+  "closed"
+};
+
+// https://dom.spec.whatwg.org/#shadowroot
 [Func="nsDocument::IsWebComponentsEnabled"]
 interface ShadowRoot : DocumentFragment
 {
+  // Shadow DOM v1
+  readonly attribute ShadowRootMode mode;
+  readonly attribute Element host;
+
+  // [deprecated] Shadow DOM v0
   Element? getElementById(DOMString elementId);
   HTMLCollection getElementsByTagName(DOMString localName);
   HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
   HTMLCollection getElementsByClassName(DOMString classNames);
-  [SetterThrows,TreatNullAs=EmptyString]
+  [CEReactions, SetterThrows, TreatNullAs=EmptyString]
   attribute DOMString innerHTML;
-  readonly attribute Element host;
-  readonly attribute ShadowRoot? olderShadowRoot;
   attribute boolean applyAuthorStyles;
-  readonly attribute StyleSheetList styleSheets;
 };