Revamp style resolver stats

Source/core/testing/Internals.idl

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 19 matching lines @@
     DOMString address(Node node);
 
     GCObservation observeGC(any observed);
 
     [RaisesException] DOMString elementRenderTreeAsText(Element element);
     boolean isPreloaded(DOMString url);
     boolean isLoadingFromMemoryCache(DOMString url);
 
     void crash();
 
+    void setStyleResolverStatsEnabled(boolean enabled);
+    [RaisesException] DOMString styleResolverStatsReport();
+    [RaisesException] DOMString styleResolverStatsTotalsReport();
+
     [RaisesException] unsigned long numberOfScopedHTMLStyleChildren(Node scope);
     [RaisesException] CSSStyleDeclaration computedStyleIncludingVisitedInfo(Node node);
 
     [RaisesException] ShadowRoot ensureShadowRoot(Element host);
     [RaisesException] ShadowRoot shadowRoot(Element host);
     [RaisesException] ShadowRoot youngestShadowRoot(Element host);
     [RaisesException] ShadowRoot oldestShadowRoot(Element host);
     [RaisesException] ShadowRoot youngerShadowRoot(Node root);
     [RaisesException] ShadowRoot olderShadowRoot(Node root);
 
@@ skipping 204 matching lines @@
     [RaisesException] DOMString getImageSourceURL(Element element);
 
     boolean isSelectPopupVisible(Node node);
 
     [RaisesException] ClientRect selectionBounds();
 
     boolean loseSharedGraphicsContext3D();
 
     [RaisesException] void forceCompositingUpdate(Document document);
 };