Standardize usage of virtual/override/final in remoting/

remoting/host/cast_video_capturer_adapter.h

Index: remoting/host/cast_video_capturer_adapter.h
diff --git a/remoting/host/cast_video_capturer_adapter.h b/remoting/host/cast_video_capturer_adapter.h
index fd3ab75a0ca92b759210fa45ca62b30be1e3dfd1..1a39a2e2b762737703155d8195079358482538ba 100644
--- a/remoting/host/cast_video_capturer_adapter.h
+++ b/remoting/host/cast_video_capturer_adapter.h
@@ -36,24 +36,24 @@ class CastVideoCapturerAdapter : public cricket::VideoCapturer,
   explicit CastVideoCapturerAdapter(
       scoped_ptr<webrtc::DesktopCapturer> capturer);
 
-  virtual ~CastVideoCapturerAdapter();
+  ~CastVideoCapturerAdapter() override;
 
   // webrtc::DesktopCapturer::Callback implementation.
-  virtual webrtc::SharedMemory* CreateSharedMemory(size_t size) override;
+  webrtc::SharedMemory* CreateSharedMemory(size_t size) override;
   // Converts |frame| to a cricket::CapturedFrame and emits that via
   // SignalFrameCaptured for the base::VideoCapturer implementation to process.
-  virtual void OnCaptureCompleted(webrtc::DesktopFrame* frame) override;
+  void OnCaptureCompleted(webrtc::DesktopFrame* frame) override;
 
   // cricket::VideoCapturer implementation.
-  virtual bool GetBestCaptureFormat(const cricket::VideoFormat& desired,
-                                  cricket::VideoFormat* best_format) override;
-  virtual cricket::CaptureState Start(
+  bool GetBestCaptureFormat(const cricket::VideoFormat& desired,
+                            cricket::VideoFormat* best_format) override;
+  cricket::CaptureState Start(
       const cricket::VideoFormat& capture_format) override;
-  virtual bool Pause(bool pause) override;
-  virtual void Stop() override;
-  virtual bool IsRunning() override;
-  virtual bool IsScreencast() const override;
-  virtual bool GetPreferredFourccs(std::vector<uint32>* fourccs) override;
+  bool Pause(bool pause) override;
+  void Stop() override;
+  bool IsRunning() override;
+  bool IsScreencast() const override;
+  bool GetPreferredFourccs(std::vector<uint32>* fourccs) override;
 
  private:
   // Kicks off the next frame capture using |desktop_capturer_|.