Remove unused ExtraData support on exported mediastream objects.

Source/platform/exported/WebRTCVoidRequest.cpp

 /*
  * Copyright (C) 2012 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 19 matching lines @@
 
 #include "config.h"
 
 #include "public/platform/WebRTCVoidRequest.h"
 
 #include "platform/mediastream/RTCVoidRequest.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
-namespace {
-
-class ExtraDataContainer : public RTCVoidRequest::ExtraData {
-public:
-    ExtraDataContainer(PassOwnPtr<WebRTCVoidRequest::ExtraData> extraData) : m_extraData(extraData) { }
-
-    WebRTCVoidRequest::ExtraData* extraData() { return m_extraData.get(); }
-
-private:
-    OwnPtr<WebRTCVoidRequest::ExtraData> m_extraData;
-};
-
-} // namespace
-
 WebRTCVoidRequest::WebRTCVoidRequest(RTCVoidRequest* constraints)
     : m_private(constraints)
 {
 }
 
 void WebRTCVoidRequest::assign(const WebRTCVoidRequest& other)
 {
     m_private = other.m_private;
 }
 
 void WebRTCVoidRequest::reset()
 {
     m_private.reset();
 }
 
 void WebRTCVoidRequest::requestSucceeded() const
 {
     ASSERT(m_private.get());
     m_private->requestSucceeded();
 }
 
 void WebRTCVoidRequest::requestFailed(const WebString& error) const
 {
     ASSERT(m_private.get());
     m_private->requestFailed(error);
 }
 
-WebRTCVoidRequest::ExtraData* WebRTCVoidRequest::extraData() const
-{
-    RTCVoidRequest::ExtraData* data = m_private->extraData();
-    if (!data)
-        return 0;
-    return static_cast<ExtraDataContainer*>(data)->extraData();
-}
-
-void WebRTCVoidRequest::setExtraData(ExtraData* extraData)
-{
-    m_private->setExtraData(adoptPtr(new ExtraDataContainer(adoptPtr(extraData))));
-}
-
 } // namespace blink
-