Update {virtual,override,final} to follow C++11 style in remoting.

The Google style guide states that only one of {virtual,override,final}
should be used for each declaration, since override implies virtual and
final implies both virtual and override.

This patch was automatically generated with an OS=android build using a
variation of https://codereview.chromium.org/598073004.

BUG=417463

Review URL: https://codereview.chromium.org/905463005

Cr-Commit-Position: refs/heads/master@{#314944}

remoting/client/jni/chromoting_jni_instance.h

@@ -94,30 +94,26 @@ class ChromotingJniInstance
   void RecordPaintTime(int64 paint_time_ms);
 
   // ClientUserInterface implementation.
-  virtual void OnConnectionState(
-      protocol::ConnectionToHost::State state,
-      protocol::ErrorCode error) override;
-  virtual void OnConnectionReady(bool ready) override;
-  virtual void OnRouteChanged(const std::string& channel_name,
-                              const protocol::TransportRoute& route) override;
-  virtual void SetCapabilities(const std::string& capabilities) override;
-  virtual void SetPairingResponse(
-      const protocol::PairingResponse& response) override;
-  virtual void DeliverHostMessage(
-      const protocol::ExtensionMessage& message) override;
-  virtual protocol::ClipboardStub* GetClipboardStub() override;
-  virtual protocol::CursorShapeStub* GetCursorShapeStub() override;
+  void OnConnectionState(protocol::ConnectionToHost::State state,
+                         protocol::ErrorCode error) override;
+  void OnConnectionReady(bool ready) override;
+  void OnRouteChanged(const std::string& channel_name,
+                      const protocol::TransportRoute& route) override;
+  void SetCapabilities(const std::string& capabilities) override;
+  void SetPairingResponse(const protocol::PairingResponse& response) override;
+  void DeliverHostMessage(const protocol::ExtensionMessage& message) override;
+  protocol::ClipboardStub* GetClipboardStub() override;
+  protocol::CursorShapeStub* GetCursorShapeStub() override;
 
   // CursorShapeStub implementation.
-  virtual void InjectClipboardEvent(
-      const protocol::ClipboardEvent& event) override;
+  void InjectClipboardEvent(const protocol::ClipboardEvent& event) override;
 
   // ClipboardStub implementation.
-  virtual void SetCursorShape(const protocol::CursorShapeInfo& shape) override;
+  void SetCursorShape(const protocol::CursorShapeInfo& shape) override;
 
  private:
   // This object is ref-counted, so it cleans itself up.
-  virtual ~ChromotingJniInstance();
+  ~ChromotingJniInstance() override;
 
   void ConnectToHostOnDisplayThread();
   void ConnectToHostOnNetworkThread();

remoting/client/jni/jni_frame_consumer.h

@@ -34,21 +34,21 @@ class JniFrameConsumer : public FrameConsumer {
   explicit JniFrameConsumer(ChromotingJniRuntime* jni_runtime,
                             scoped_refptr<ChromotingJniInstance> jni_instance);
 
-  virtual ~JniFrameConsumer();
+  ~JniFrameConsumer() override;
 
   // This must be called once before the producer's source size is set.
   void set_frame_producer(FrameProducer* producer);
 
   // 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:
   // Allocates a new buffer of |source_size|, informs Java about it, and tells