remove memoryinstrumentation

Source/core/loader/DocumentLoader.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google 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 165 matching lines @@
 
         DocumentLoadTiming* timing() { return &m_documentLoadTiming; }
         void resetTiming() { m_documentLoadTiming = DocumentLoadTiming(); }
 
         // The WebKit layer calls this function when it's ready for the data to
         // actually be added to the document.
         void commitData(const char* bytes, size_t length);
 
         ApplicationCacheHost* applicationCacheHost() const { return m_applicationCacheHost.get(); }
 
-        virtual void reportMemoryUsage(MemoryObjectInfo*) const;
         void checkLoadComplete();
 
     protected:
         DocumentLoader(const ResourceRequest&, const SubstituteData&);
 
         bool m_deferMainResourceDataLoad;
 
     private:
 
         // The URL of the document resulting from this DocumentLoader.
@@ skipping 117 matching lines @@
 
     inline void DocumentLoader::takeMemoryCacheLoadsForClientNotification(Vector<String>& loadsSet)
     {
         loadsSet.swap(m_resourcesLoadedFromMemoryCacheForClientNotification);
         m_resourcesLoadedFromMemoryCacheForClientNotification.clear();
     }
 
 }
 
 #endif // DocumentLoader_h