Rename WebKit namespace to blink (part 3)

content/renderer/media/media_stream_track_extra_data.h

 // Copyright 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_TRACK_EXTRA_DATA_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_EXTRA_DATA_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
 
 namespace webrtc {
 class MediaStreamTrackInterface;
 }  // namespace webrtc
 
 namespace content {
 
 class CONTENT_EXPORT MediaStreamTrackExtraData
-    : NON_EXPORTED_BASE(public WebKit::WebMediaStreamTrack::ExtraData) {
+    : NON_EXPORTED_BASE(public blink::WebMediaStreamTrack::ExtraData) {
  public:
   MediaStreamTrackExtraData(webrtc::MediaStreamTrackInterface* track);
   virtual ~MediaStreamTrackExtraData();
 
   const scoped_refptr<webrtc::MediaStreamTrackInterface>& track() const {
     return track_;
   }
 
  private:
   scoped_refptr<webrtc::MediaStreamTrackInterface> track_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamTrackExtraData);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_EXTRA_DATA_H_