Standardize usage of virtual/override/final in content/renderer/

content/renderer/media/remote_media_stream_impl.cc

 // 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.
 
 #include "content/renderer/media/remote_media_stream_impl.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 81 matching lines @@
 // change notifications on a remote webrtc audio MediaStreamTracks and notify
 // WebKit.
 class RemoteAudioMediaStreamTrackAdapter
     : public RemoteMediaStreamTrackAdapter,
       public webrtc::ObserverInterface,
       public base::NonThreadSafe {
  public:
   RemoteAudioMediaStreamTrackAdapter(
       webrtc::MediaStreamTrackInterface* webrtc_track,
       const blink::WebMediaStreamTrack& webkit_track);
-  virtual ~RemoteAudioMediaStreamTrackAdapter();
+  ~RemoteAudioMediaStreamTrackAdapter() override;
 
  private:
   // webrtc::ObserverInterface implementation.
-  virtual void OnChanged() override;
+  void OnChanged() override;
 
   webrtc::MediaStreamTrackInterface::TrackState state_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteAudioMediaStreamTrackAdapter);
 };
 
 RemoteAudioMediaStreamTrackAdapter::RemoteAudioMediaStreamTrackAdapter(
     webrtc::MediaStreamTrackInterface* webrtc_track,
     const blink::WebMediaStreamTrack& webkit_track)
     : RemoteMediaStreamTrackAdapter(webrtc_track, webkit_track),
@@ skipping 131 matching lines @@
       InitializeWebkitTrack(*it, &new_track,
                             blink::WebMediaStreamSource::TypeVideo);
       video_track_observers_.push_back(
           new RemoteMediaStreamTrackAdapter(*it, new_track));
       webkit_stream_.addTrack(new_track);
     }
   }
 }
 
 }  // namespace content