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

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/extensions/extension_action_context_menu_controller.h"
 
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/extensions/active_script_controller.h"
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
@@ skipping 36 matching lines @@
  public:
   AsyncUninstaller(const Extension* extension, Browser* browser)
       : extension_(extension),
         profile_(browser->profile()) {
     extension_uninstall_dialog_.reset(
         extensions::ExtensionUninstallDialog::Create(
             profile_, browser->window()->GetNativeWindow(), this));
     extension_uninstall_dialog_->ConfirmUninstall(extension_);
   }
 
-  virtual ~AsyncUninstaller() {}
+  ~AsyncUninstaller() override {}
 
   // ExtensionUninstallDialog::Delegate:
-  virtual void ExtensionUninstallAccepted() override {
+  void ExtensionUninstallAccepted() override {
     extensions::ExtensionSystem::Get(profile_)
         ->extension_service()
         ->UninstallExtension(extension_->id(),
                              extensions::UNINSTALL_REASON_USER_INITIATED,
                              base::Bind(&base::DoNothing),
                              NULL);
   }
-  virtual void ExtensionUninstallCanceled() override {}
+  void ExtensionUninstallCanceled() override {}
 
  private:
   // The extension that's being uninstalled.
   const Extension* extension_;
 
   // The current profile. Weak.
   Profile* profile_;
 
   scoped_ptr<extensions::ExtensionUninstallDialog> extension_uninstall_dialog_;
 
@@ skipping 171 matching lines @@
     return;
 
   [ExtensionPopupController showURL:url
                           inBrowser:browser_
                          anchoredAt:popupPoint
                       arrowLocation:info_bubble::kTopRight
                             devMode:YES];
 }
 
 @end