Remove unused ExtraData support on exported mediastream objects.

Source/platform/exported/WebMediaStreamTrackSourcesRequest.cpp

 /*
  * Copyright (C) 2013 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #include "config.h"
 #include "public/platform/WebMediaStreamTrackSourcesRequest.h"
 
 #include "platform/mediastream/MediaStreamTrackSourcesRequest.h"
 #include "public/platform/WebSourceInfo.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-namespace {
-
-class ExtraDataContainer : public MediaStreamTrackSourcesRequest::ExtraData {
-public:
-    ExtraDataContainer(PassOwnPtr<WebMediaStreamTrackSourcesRequest::ExtraData> extraData) : m_extraData(extraData) { }
-
-    WebMediaStreamTrackSourcesRequest::ExtraData* extraData() { return m_extraData.get(); }
-
-private:
-    OwnPtr<WebMediaStreamTrackSourcesRequest::ExtraData> m_extraData;
-};
-
-} // namespace
-
 WebMediaStreamTrackSourcesRequest::WebMediaStreamTrackSourcesRequest(MediaStreamTrackSourcesRequest* request)
     : m_private(request)
 {
 }
 
 void WebMediaStreamTrackSourcesRequest::assign(const WebMediaStreamTrackSourcesRequest& other)
 {
     m_private = other.m_private;
 }
 
 void WebMediaStreamTrackSourcesRequest::reset()
 {
     m_private.reset();
 }
 
 WebString WebMediaStreamTrackSourcesRequest::origin() const
 {
     ASSERT(m_private.get());
     return m_private->origin();
 }
 
 void WebMediaStreamTrackSourcesRequest::requestSucceeded(const WebVector<WebSourceInfo>& sourceInfos) const
 {
     ASSERT(m_private.get());
     m_private->requestSucceeded(sourceInfos);
 }
 
-WebMediaStreamTrackSourcesRequest::ExtraData* WebMediaStreamTrackSourcesRequest::extraData() const
-{
-    MediaStreamTrackSourcesRequest::ExtraData* data = m_private->extraData();
-    if (!data)
-        return 0;
-    return static_cast<ExtraDataContainer*>(data)->extraData();
-}
-
-void WebMediaStreamTrackSourcesRequest::setExtraData(ExtraData* extraData)
-{
-    m_private->setExtraData(adoptPtr(new ExtraDataContainer(adoptPtr(extraData))));
-}
-
 } // namespace blink
-