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

chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm

Index: chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm
diff --git a/chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm b/chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm
index 67b28fb77a8dbe8378c6a5e372590bbce56d37d0..d293d30b9b33783ecc10a83419592bfd1d6d8fb3 100644
--- a/chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm
+++ b/chrome/browser/ui/cocoa/extensions/browser_actions_controller.mm
@@ -186,10 +186,9 @@ class ExtensionServiceObserverBridge
   }
 
   // Overridden from content::NotificationObserver.
-  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 {
     switch (type) {
       case extensions::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE: {
         ExtensionPopupController* popup = [ExtensionPopupController popup];
@@ -215,30 +214,26 @@ class ExtensionServiceObserverBridge
   }
 
   // extensions::ExtensionToolbarModel::Observer implementation.
-  virtual void ToolbarExtensionAdded(
-      const Extension* extension,
-      int index) override {
+  void ToolbarExtensionAdded(const Extension* extension, int index) override {
     [owner_ createActionButtonForExtension:extension withIndex:index];
     [owner_ resizeContainerAndAnimate:NO];
   }
 
-  virtual void ToolbarExtensionRemoved(const Extension* extension) override {
+  void ToolbarExtensionRemoved(const Extension* extension) override {
     [owner_ removeActionButtonForExtension:extension];
     [owner_ resizeContainerAndAnimate:NO];
   }
 
-  virtual void ToolbarExtensionMoved(const Extension* extension,
-                                     int index) override {
-  }
+  void ToolbarExtensionMoved(const Extension* extension, int index) override {}
 
-  virtual void ToolbarExtensionUpdated(const Extension* extension) override {
+  void ToolbarExtensionUpdated(const Extension* extension) override {
     BrowserActionButton* button = [owner_ buttonForExtension:extension];
     if (button)
       [button updateState];
   }
 
-  virtual bool ShowExtensionActionPopup(const Extension* extension,
-                                        bool grant_active_tab) override {
+  bool ShowExtensionActionPopup(const Extension* extension,
+                                bool grant_active_tab) override {
     // Do not override other popups and only show in active window.
     ExtensionPopupController* popup = [ExtensionPopupController popup];
     if (popup || !browser_->window()->IsActive())
@@ -249,15 +244,11 @@ class ExtensionServiceObserverBridge
                                       shouldGrant:grant_active_tab];
   }
 
-  virtual void ToolbarVisibleCountChanged() override {
-  }
+  void ToolbarVisibleCountChanged() override {}
 
-  virtual void ToolbarHighlightModeChanged(bool is_highlighting) override {
-  }
+  void ToolbarHighlightModeChanged(bool is_highlighting) override {}
 
-  virtual Browser* GetBrowser() override {
-    return browser_;
-  }
+  Browser* GetBrowser() override { return browser_; }
 
  private:
   // The object we need to inform when we get a notification. Weak. Owns us.