Standardize usage of virtual/override/final in remoting/

This patch was automatically generated by applying clang fixit hints
generated by the plugin to the source tree.

BUG=417463
[email protected]

Review URL: https://codereview.chromium.org/667123002

Cr-Commit-Position: refs/heads/master@{#300472}
diff --git a/remoting/protocol/client_event_dispatcher.h b/remoting/protocol/client_event_dispatcher.h
index 35c8ddd..ca61740 100644
--- a/remoting/protocol/client_event_dispatcher.h
+++ b/remoting/protocol/client_event_dispatcher.h
@@ -18,16 +18,16 @@
 class ClientEventDispatcher : public ChannelDispatcherBase, public InputStub {
  public:
   ClientEventDispatcher();
-  virtual ~ClientEventDispatcher();
+  ~ClientEventDispatcher() override;
 
   // InputStub implementation.
-  virtual void InjectKeyEvent(const KeyEvent& event) override;
-  virtual void InjectTextEvent(const TextEvent& event) override;
-  virtual void InjectMouseEvent(const MouseEvent& event) override;
+  void InjectKeyEvent(const KeyEvent& event) override;
+  void InjectTextEvent(const TextEvent& event) override;
+  void InjectMouseEvent(const MouseEvent& event) override;
 
  protected:
   // ChannelDispatcherBase overrides.
-  virtual void OnInitialized() override;
+  void OnInitialized() override;
 
  private:
   BufferedSocketWriter writer_;