remove memoryinstrumentation

Source/core/platform/graphics/GraphicsLayer.h

 /*
  * Copyright (C) 2009 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 390 matching lines @@
     void resetTrackedRepaints();
     void addRepaintRect(const FloatRect&);
 
     static bool supportsBackgroundColorContent()
     {
         return false;
     }
 
     void updateDebugIndicators();
 
-    virtual void reportMemoryUsage(MemoryObjectInfo*) const;
-
 protected:
     // Should be called from derived class destructors. Should call willBeDestroyed() on super.
     virtual void willBeDestroyed();
 
     // This method is used by platform GraphicsLayer classes to clear the filters
     // when compositing is not done in hardware. It is not virtual, so the caller
     // needs to notifiy the change to the platform layer as needed.
     void clearFilters() { m_filters.clear(); }
 
     // Given a KeyframeValueList containing filterOperations, return true if the operations are valid.
@@ skipping 73 matching lines @@
 
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showGraphicsLayerTree(const WebCore::GraphicsLayer* layer);
 #endif
 
 #endif // GraphicsLayer_h