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

content/renderer/media/webrtc/webrtc_media_stream_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_MEDIA_STREAM_ADAPTER_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_ADAPTER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 13 matching lines @@
 // webrtc MediaStream that can be added and removed from a RTCPeerConnection.
 // An instance of WebRtcMediaStreamAdapter is created when a MediaStream is
 // added to an RTCPeerConnection object
 // Instances of this class is owned by the RTCPeerConnectionHandler object that
 // created it.
 class CONTENT_EXPORT WebRtcMediaStreamAdapter
     : NON_EXPORTED_BASE(public MediaStreamObserver) {
  public:
   WebRtcMediaStreamAdapter(const blink::WebMediaStream& web_stream,
                            PeerConnectionDependencyFactory* factory);
-  virtual ~WebRtcMediaStreamAdapter();
+  ~WebRtcMediaStreamAdapter() override;
 
   bool IsEqual(const blink::WebMediaStream& web_stream) {
     return web_stream_.extraData() == web_stream.extraData();
   }
 
   webrtc::MediaStreamInterface* webrtc_media_stream() {
     return webrtc_media_stream_.get();
   }
 
  protected:
   // MediaStreamObserver implementation.
-  virtual void TrackAdded(const blink::WebMediaStreamTrack& track) override;
-  virtual void TrackRemoved(const blink::WebMediaStreamTrack& track) override;
+  void TrackAdded(const blink::WebMediaStreamTrack& track) override;
+  void TrackRemoved(const blink::WebMediaStreamTrack& track) override;
 
  private:
   void CreateAudioTrack(const blink::WebMediaStreamTrack& track);
   void CreateVideoTrack(const blink::WebMediaStreamTrack& track);
 
   blink::WebMediaStream web_stream_;
 
   // Pointer to a PeerConnectionDependencyFactory, owned by the RenderThread.
   // It's valid for the lifetime of RenderThread.
   PeerConnectionDependencyFactory* factory_;
 
   scoped_refptr<webrtc::MediaStreamInterface> webrtc_media_stream_;
   ScopedVector<WebRtcVideoTrackAdapter> video_adapters_;
 
   DISALLOW_COPY_AND_ASSIGN (WebRtcMediaStreamAdapter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_MEDIA_STREAM_ADAPTER_H_