remove memoryinstrumentation

Source/core/loader/CachedMetadata.h

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 61 matching lines @@
         return m_serializedData.data() + dataStart;
     }
 
     size_t size() const
     {
         if (m_serializedData.size() < dataStart)
             return 0;
         return m_serializedData.size() - dataStart;
     }
 
-    void reportMemoryUsage(MemoryObjectInfo*) const;
-
 private:
     // Reads an unsigned value at position. Returns 0 on error.
     unsigned readUnsigned(size_t position) const
     {
         if (m_serializedData.size() < position + sizeof(unsigned))
             return 0;
         return *reinterpret_cast_ptr<unsigned*>(const_cast<char*>(m_serializedData.data() + position));
     }
 
     // Appends an unsigned value to the end of the serialized data.
@@ skipping 25 matching lines @@
     static const size_t dataStart = sizeof(unsigned);
 
     // Since the serialization format supports random access, storing it in
     // serialized form avoids need for a copy during serialization.
     Vector<char> m_serializedData;
 };
 
 }
 
 #endif