Standardize usage of virtual/override/final in chrome/

chrome/test/chromedriver/chrome/chrome_remote_impl.h

Index: chrome/test/chromedriver/chrome/chrome_remote_impl.h
diff --git a/chrome/test/chromedriver/chrome/chrome_remote_impl.h b/chrome/test/chromedriver/chrome/chrome_remote_impl.h
index 6fffaaee0bfdb2ff35edfdbaf5857c11728f3ab0..b853a7b0d877838f3a45b947c94b44bb3c7945c0 100644
--- a/chrome/test/chromedriver/chrome/chrome_remote_impl.h
+++ b/chrome/test/chromedriver/chrome/chrome_remote_impl.h
@@ -20,13 +20,13 @@ class ChromeRemoteImpl : public ChromeImpl {
       scoped_ptr<DevToolsHttpClient> http_client,
       scoped_ptr<DevToolsClient> websocket_client,
       ScopedVector<DevToolsEventListener>& devtools_event_listeners);
-  virtual ~ChromeRemoteImpl();
+  ~ChromeRemoteImpl() override;
 
   // Overridden from Chrome.
-  virtual std::string GetOperatingSystemName() override;
+  std::string GetOperatingSystemName() override;
 
   // Overridden from ChromeImpl.
-  virtual Status QuitImpl() override;
+  Status QuitImpl() override;
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CHROME_CHROME_REMOTE_IMPL_H_