Standardize usage of virtual/override/final in chrome/browser/ui/

chrome/browser/ui/webui/options/clear_browser_data_handler.h

Index: chrome/browser/ui/webui/options/clear_browser_data_handler.h
diff --git a/chrome/browser/ui/webui/options/clear_browser_data_handler.h b/chrome/browser/ui/webui/options/clear_browser_data_handler.h
index b27f84b687c8e657bafbb6a5bf5b218bc1bc9dd0..13556eab69f0dbc35e3e6eec8bd279d271ef94c8 100644
--- a/chrome/browser/ui/webui/options/clear_browser_data_handler.h
+++ b/chrome/browser/ui/webui/options/clear_browser_data_handler.h
@@ -16,16 +16,15 @@ class ClearBrowserDataHandler : public OptionsPageUIHandler,
                                 public BrowsingDataRemover::Observer {
  public:
   ClearBrowserDataHandler();
-  virtual ~ClearBrowserDataHandler();
+  ~ClearBrowserDataHandler() override;
 
   // OptionsPageUIHandler implementation.
-  virtual void GetLocalizedValues(
-      base::DictionaryValue* localized_strings) override;
-  virtual void InitializeHandler() override;
-  virtual void InitializePage() override;
+  void GetLocalizedValues(base::DictionaryValue* localized_strings) override;
+  void InitializeHandler() override;
+  void InitializePage() override;
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   void UpdateInfoBannerVisibility();
 
@@ -35,7 +34,7 @@ class ClearBrowserDataHandler : public OptionsPageUIHandler,
 
   // BrowsingDataRemover::Observer implementation.
   // Closes the dialog once all requested data has been removed.
-  virtual void OnBrowsingDataRemoverDone() override;
+  void OnBrowsingDataRemoverDone() override;
 
   // Updates UI when the pref to allow clearing history changes.
   virtual void OnBrowsingHistoryPrefChanged();