Roll IDL to multivm@477

third_party/WebCore/page/DOMWindow.idl

Index: third_party/WebCore/page/DOMWindow.idl
diff --git a/third_party/WebCore/page/DOMWindow.idl b/third_party/WebCore/page/DOMWindow.idl
index deaf890d0c8c662c7256cb2a5b8af0dee99dcbf0..7051e31b19cae0f2330d3553b05fb8b34281cbca 100644
--- a/third_party/WebCore/page/DOMWindow.idl
+++ b/third_party/WebCore/page/DOMWindow.idl
@@ -153,7 +153,7 @@ module window {
         // WebKit extensions
 #if defined(LANGUAGE_JAVASCRIPT) && LANGUAGE_JAVASCRIPT
         CSSRuleList getMatchedCSSRules(in [Optional=DefaultIsUndefined] Element element,
-                                       in [Optional=DefaultIsUndefined] DOMString pseudoElement);
+                                       in [TreatNullAs=NullString, TreatUndefinedAs=NullString,Optional=DefaultIsUndefined] DOMString pseudoElement);
 #endif
 
         attribute [Replaceable] double devicePixelRatio;
@@ -404,6 +404,7 @@ module window {
         attribute HTMLButtonElementConstructor HTMLButtonElement;
         attribute HTMLCanvasElementConstructor HTMLCanvasElement;
         attribute HTMLDListElementConstructor HTMLDListElement;
+        attribute [Conditional=DATALIST] HTMLDataListElementConstructor HTMLDataListElement;
         attribute HTMLDirectoryElementConstructor HTMLDirectoryElement;
         attribute HTMLDivElementConstructor HTMLDivElement;
         attribute HTMLEmbedElementConstructor HTMLEmbedElement;
@@ -768,7 +769,7 @@ module window {
         attribute [Conditional=BLOB|FILE_SYSTEM] FileErrorConstructor FileError;
         attribute [Conditional=BLOB] FileReaderConstructor FileReader;
 
-        attribute [Conditional=BLOB] WebKitBlobBuilderConstructor WebKitBlobBuilder;
+        attribute [Conditional=BLOB&LEGACY_WEBKIT_BLOB_BUILDER] WebKitBlobBuilderConstructor WebKitBlobBuilder;
 
         attribute [Conditional=BLOB] DOMURLConstructor webkitURL;