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

content/renderer/media/webrtc/webrtc_video_track_adapter.h

 // Copyright 2014 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_WEBRTC_WEBRTC_VIDEO_TRACK_ADAPTER_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_TRACK_ADAPTER_H_
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "content/public/renderer/media_stream_video_sink.h"
@@ skipping 13 matching lines @@
 // The responsibility of the class is to create and own a representation of a
 // webrtc VideoTrack that can be added and removed from a RTCPeerConnection.
 // An instance of WebRtcVideoTrackAdapter is created when a VideoTrack is
 // added to an RTCPeerConnection object.
 // Instances of this class is owned by the WebRtcMediaStreamAdapter object that
 // created it.
 class WebRtcVideoTrackAdapter : public MediaStreamVideoSink {
  public:
   WebRtcVideoTrackAdapter(const blink::WebMediaStreamTrack& track,
                           PeerConnectionDependencyFactory* factory);
-  virtual ~WebRtcVideoTrackAdapter();
+  ~WebRtcVideoTrackAdapter() override;
 
   webrtc::VideoTrackInterface* webrtc_video_track() {
     return video_track_.get();
   }
 
  protected:
   // Implementation of MediaStreamSink.
-  virtual void OnEnabledChanged(bool enabled) override;
+  void OnEnabledChanged(bool enabled) override;
 
  private:
   // Used to DCHECK that we are called on the correct thread.
   base::ThreadChecker thread_checker_;
 
   scoped_refptr<webrtc::VideoTrackInterface> video_track_;
   blink::WebMediaStreamTrack web_track_;
 
   class WebRtcVideoSourceAdapter;
   scoped_refptr<WebRtcVideoSourceAdapter> source_adapter_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcVideoTrackAdapter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_TRACK_ADAPTER_H_