Update refernces to Blink's Platform API (content)

content/renderer/media/media_stream_source_observer.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamSource.h"
+#include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
 
 namespace content {
 
 class MediaStreamSourceExtraData;
 
 // MediaStreamSourceObserver listens to events on MediaSourceInterface and
 // notify WebKit. It will be owned by MediaStreamSourceExtraData.
 class CONTENT_EXPORT MediaStreamSourceObserver
     : NON_EXPORTED_BASE(public webrtc::ObserverInterface),
       NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   MediaStreamSourceObserver(webrtc::MediaSourceInterface* webrtc_source,
                             MediaStreamSourceExtraData* extra_data);
   virtual ~MediaStreamSourceObserver();
 
  private:
   // webrtc::ObserverInterface implementation.
   virtual void OnChanged() OVERRIDE;
 
   webrtc::MediaSourceInterface::SourceState state_;
   scoped_refptr<webrtc::MediaSourceInterface> webrtc_source_;
   MediaStreamSourceExtraData* extra_data_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamSourceObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_