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

content/renderer/text_input_client_observer.h

Index: content/renderer/text_input_client_observer.h
diff --git a/content/renderer/text_input_client_observer.h b/content/renderer/text_input_client_observer.h
index 6e0734e880d132d61eeb842ec3de3c754303b75f..c8d1b4a2e13f2729383a3a99a742e5e0126894d6 100644
--- a/content/renderer/text_input_client_observer.h
+++ b/content/renderer/text_input_client_observer.h
@@ -25,10 +25,10 @@ class RenderViewImpl;
 class TextInputClientObserver : public RenderViewObserver {
  public:
   explicit TextInputClientObserver(RenderViewImpl* render_view);
-  virtual ~TextInputClientObserver();
+  ~TextInputClientObserver() override;
 
   // RenderViewObserver overrides:
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   // Returns the WebView of the RenderView.