remove memoryinstrumentation

Source/core/xml/XMLHttpRequest.h

 /*
  *  Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
  *  Copyright (C) 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
@@ skipping 117 matching lines @@
     // response attribute has custom getter.
     ArrayBuffer* responseArrayBuffer(ExceptionCode&);
     ArrayBuffer* optionalResponseArrayBuffer() const { return m_responseArrayBuffer.get(); }
 
     void setLastSendLineNumber(unsigned lineNumber) { m_lastSendLineNumber = lineNumber; }
     void setLastSendURL(const String& url) { m_lastSendURL = url; }
 
     XMLHttpRequestUpload* upload();
     XMLHttpRequestUpload* optionalUpload() const { return m_upload.get(); }
 
-    virtual void reportMemoryUsage(MemoryObjectInfo*) const;
-
     DEFINE_ATTRIBUTE_EVENT_LISTENER(readystatechange);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(load);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
 #if ENABLE(XHR_TIMEOUT)
     DEFINE_ATTRIBUTE_EVENT_LISTENER(timeout);
 #endif
@@ skipping 91 matching lines @@
 
     // An enum corresponding to the allowed string values for the responseType attribute.
     ResponseTypeCode m_responseTypeCode;
 
     RefPtr<SecurityOrigin> m_securityOrigin;
 };
 
 } // namespace WebCore
 
 #endif // XMLHttpRequest_h