remove memoryinstrumentation

Source/core/dom/ContainerNode.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 111 matching lines @@
 
     void attachChildren();
     void attachChildrenLazily();
     void detachChildren();
     void detachChildrenIfNeeded();
 
     void disconnectDescendantFrames();
 
     virtual bool childShouldCreateRenderer(const NodeRenderingContext&) const { return true; }
 
-    virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
-
 protected:
     ContainerNode(Document*, ConstructionType = CreateContainer);
 
     static void queuePostAttachCallback(NodeCallback, Node*, unsigned = 0);
     static bool postAttachCallbacksAreSuspended();
 
     template<class GenericNode, class GenericNodeContainer>
     friend void appendChildToContainer(GenericNode* child, GenericNodeContainer*);
 
     template<class GenericNode, class GenericNodeContainer>
@@ skipping 208 matching lines @@
         m_node->resumePostAttachCallbacks();
     }
 
 private:
     ContainerNode* m_node;
 };
 
 } // namespace WebCore
 
 #endif // ContainerNode_h