Update IDL to 1847

core/dom/shadow/ShadowRoot.idl

Index: core/dom/shadow/ShadowRoot.idl
diff --git a/core/dom/shadow/ShadowRoot.idl b/core/dom/shadow/ShadowRoot.idl
index c84d177cba203b1be65dffa8e09fb59bc4ca2f47..241c2f6fded8587dcb62c4f132f1496add8211e1 100644
--- a/core/dom/shadow/ShadowRoot.idl
+++ b/core/dom/shadow/ShadowRoot.idl
@@ -28,19 +28,19 @@
     NoInterfaceObject
 ] interface ShadowRoot : DocumentFragment {
     readonly attribute Element activeElement;
-    attribute boolean applyAuthorStyles;
+    [DeprecateAs=ShadowRootApplyAuthorStyles] attribute boolean applyAuthorStyles;
     attribute boolean resetStyleInheritance;
-    [RuntimeEnabled=ShadowDOM, ImplementedAs=bindingsOlderShadowRoot] readonly attribute ShadowRoot olderShadowRoot;
+    [RuntimeEnabled=ShadowDOM, ImplementedAs=olderShadowRootForBindings] readonly attribute ShadowRoot olderShadowRoot;
 
     [TreatNullAs=NullString, CustomElementCallbacks, PerWorldBindings, ActivityLogging=SetterForIsolatedWorlds, RaisesException=Setter] attribute DOMString innerHTML;
 
     [RaisesException] Node cloneNode([Default=Undefined] optional boolean deep);
     Selection getSelection();
     Element getElementById([Default=Undefined] optional DOMString elementId);
-    NodeList getElementsByClassName([Default=Undefined] optional DOMString className);
-    NodeList getElementsByTagName([Default=Undefined] optional DOMString tagName);
-    NodeList getElementsByTagNameNS([TreatNullAs=NullString,Default=Undefined] optional DOMString namespaceURI,
-                                    [Default=Undefined] optional DOMString localName);
+    HTMLCollection getElementsByClassName([Default=Undefined] optional DOMString className);
+    HTMLCollection getElementsByTagName([Default=Undefined] optional DOMString tagName);
+    HTMLCollection getElementsByTagNameNS([TreatNullAs=NullString,Default=Undefined] optional DOMString namespaceURI,
+                                          [Default=Undefined] optional DOMString localName);
 
     Element elementFromPoint([Default=Undefined] optional long x,
                              [Default=Undefined] optional long y);