[WIP] Add WebCore.UseCounter UMA to supercede FeatureObserver

third_party/WebKit/Source/core/page/Page.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 180 matching lines @@
     bool isPageVisible() const;
 
     bool isCursorVisible() const;
     void setIsCursorVisible(bool isVisible) { m_isCursorVisible = isVisible; }
 
 #if ENABLE(ASSERT)
     void setIsPainting(bool painting) { m_isPainting = painting; }
     bool isPainting() const { return m_isPainting; }
 #endif
 
-    void didCommitLoad(LocalFrame*);
+    // Invoked once when the main load for a page is committed.
+    void didCommitLoad();
+
+    // Loaded a document into the specified frame.  May be invoked multiple times for
+    // a given frame (eg. for each SVG document).
+    void deprecatedDidCommitFrameLoad(LocalFrame*);
 
     void acceptLanguagesChanged();
 
     static void networkStateChanged(bool online);
 
     MemoryPurgeController& memoryPurgeController();
 
     void purgeMemory(DeviceKind) override;
 
     DECLARE_TRACE();
@@ skipping 70 matching lines @@
     Member<MemoryPurgeController> m_memoryPurgeController;
 
     Timer<Page> m_timerForCompressStrings;
 };
 
 extern template class CORE_EXTERN_TEMPLATE_EXPORT Supplement<Page>;
 
 } // namespace blink
 
 #endif // Page_h