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

chrome/browser/ui/webui/ntp/foreign_session_handler.h

Index: chrome/browser/ui/webui/ntp/foreign_session_handler.h
diff --git a/chrome/browser/ui/webui/ntp/foreign_session_handler.h b/chrome/browser/ui/webui/ntp/foreign_session_handler.h
index 16e97f62aa993325f19e062137ece34ed8a4173d..de27ec2a0d2dc94d4a00678c90fb3e6f8aba74f5 100644
--- a/chrome/browser/ui/webui/ntp/foreign_session_handler.h
+++ b/chrome/browser/ui/webui/ntp/foreign_session_handler.h
@@ -28,10 +28,10 @@ class ForeignSessionHandler : public content::WebUIMessageHandler,
   static const int kInvalidId = -1;
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   ForeignSessionHandler();
-  virtual ~ForeignSessionHandler() {}
+  ~ForeignSessionHandler() override {}
 
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
@@ -57,9 +57,9 @@ class ForeignSessionHandler : public content::WebUIMessageHandler,
   void Init();
 
   // Determines how ForeignSessionHandler will interact with the new tab page.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   // Returns true if tab sync is enabled for this profile, otherwise false.
   bool IsTabSyncEnabled();