remove memoryinstrumentation

Source/core/platform/SharedBuffer.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. 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
@@ skipping 82 matching lines @@
     // repeat calling it until it returns 0.
     // Usage:
     //      const char* segment;
     //      unsigned pos = 0;
     //      while (unsigned length = sharedBuffer->getSomeData(segment, pos)) {
     //          // Use the data. for example: decoder->decode(segment, length);
     //          pos += length;
     //      }
     unsigned getSomeData(const char*& data, unsigned position = 0) const;
 
-    void reportMemoryUsage(MemoryObjectInfo*) const;
-
     void createPurgeableBuffer() const;
 
     void tryReplaceContentsWithPlatformBuffer(SharedBuffer*);
 
 private:
     SharedBuffer();
     explicit SharedBuffer(size_t);
     SharedBuffer(const char*, int);
     SharedBuffer(const unsigned char*, int);
     
@@ skipping 16 matching lines @@
     explicit SharedBuffer(CFDataRef);
     RetainPtr<CFDataRef> m_cfData;
 #endif
 };
 
 PassRefPtr<SharedBuffer> utf8Buffer(const String&);
 
 } // namespace WebCore
 
 #endif // SharedBuffer_h