Standardize usage of virtual/override/final in remoting/

remoting/client/frame_consumer_proxy.h

Index: remoting/client/frame_consumer_proxy.h
diff --git a/remoting/client/frame_consumer_proxy.h b/remoting/client/frame_consumer_proxy.h
index 3b273bb50986d8169bf1cfcd828d5d3d372bb93c..15b10125e941a5b0cb7860ef1a4a8525eb7055f7 100644
--- a/remoting/client/frame_consumer_proxy.h
+++ b/remoting/client/frame_consumer_proxy.h
@@ -30,19 +30,19 @@ class FrameConsumerProxy
                      const base::WeakPtr<FrameConsumer>& frame_consumer);
 
   // FrameConsumer implementation.
-  virtual void ApplyBuffer(const webrtc::DesktopSize& view_size,
-                           const webrtc::DesktopRect& clip_area,
-                           webrtc::DesktopFrame* buffer,
-                           const webrtc::DesktopRegion& region,
-                           const webrtc::DesktopRegion& shape) override;
-  virtual void ReturnBuffer(webrtc::DesktopFrame* buffer) override;
-  virtual void SetSourceSize(const webrtc::DesktopSize& source_size,
-                             const webrtc::DesktopVector& dpi) override;
-  virtual PixelFormat GetPixelFormat() override;
+  void ApplyBuffer(const webrtc::DesktopSize& view_size,
+                   const webrtc::DesktopRect& clip_area,
+                   webrtc::DesktopFrame* buffer,
+                   const webrtc::DesktopRegion& region,
+                   const webrtc::DesktopRegion& shape) override;
+  void ReturnBuffer(webrtc::DesktopFrame* buffer) override;
+  void SetSourceSize(const webrtc::DesktopSize& source_size,
+                     const webrtc::DesktopVector& dpi) override;
+  PixelFormat GetPixelFormat() override;
 
  private:
   friend class base::RefCountedThreadSafe<FrameConsumerProxy>;
-  virtual ~FrameConsumerProxy();
+  ~FrameConsumerProxy() override;
 
   base::WeakPtr<FrameConsumer> frame_consumer_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;