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

content/renderer/media/mock_media_stream_dispatcher.h

Index: content/renderer/media/mock_media_stream_dispatcher.h
diff --git a/content/renderer/media/mock_media_stream_dispatcher.h b/content/renderer/media/mock_media_stream_dispatcher.h
index e5f91293c31e07c23a4d9131578927da8ed930bb..d77327a04a68293d64ed0b991ecb7c1b2887612b 100644
--- a/content/renderer/media/mock_media_stream_dispatcher.h
+++ b/content/renderer/media/mock_media_stream_dispatcher.h
@@ -16,26 +16,26 @@ namespace content {
 class MockMediaStreamDispatcher : public MediaStreamDispatcher {
  public:
   MockMediaStreamDispatcher();
-  virtual ~MockMediaStreamDispatcher();
+  ~MockMediaStreamDispatcher() override;
 
-  virtual void GenerateStream(
+  void GenerateStream(
       int request_id,
       const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler,
       const StreamOptions& components,
       const GURL& url) override;
-  virtual void CancelGenerateStream(
+  void CancelGenerateStream(
       int request_id,
-      const base::WeakPtr<MediaStreamDispatcherEventHandler>&
-          event_handler) override;
-  virtual void EnumerateDevices(
+      const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler)
+      override;
+  void EnumerateDevices(
       int request_id,
       const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler,
       MediaStreamType type,
       const GURL& security_origin) override;
-  virtual void StopStreamDevice(const StreamDeviceInfo& device_info) override;
-  virtual bool IsStream(const std::string& label) override;
-  virtual int video_session_id(const std::string& label, int index) override;
-  virtual int audio_session_id(const std::string& label, int index) override;
+  void StopStreamDevice(const StreamDeviceInfo& device_info) override;
+  bool IsStream(const std::string& label) override;
+  int video_session_id(const std::string& label, int index) override;
+  int audio_session_id(const std::string& label, int index) override;
 
   int audio_input_request_id() const { return audio_input_request_id_; }
   int audio_output_request_id() const { return audio_output_request_id_; }