C++11 override style change for athena

athena/extensions/extension_app_model_builder.cc

 // Copyright 2014 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.
 
 #include "athena/extensions/public/extension_app_model_builder.h"
 
 #include "athena/activity/public/activity_factory.h"
 #include "athena/activity/public/activity_manager.h"
 #include "athena/extensions/public/extensions_delegate.h"
 #include "extensions/browser/extension_icon_image.h"
@@ skipping 34 matching lines @@
         *ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
             IDR_APP_DEFAULT_ICON),
         nullptr));
     icon_image_->image_skia().EnsureRepsForSupportedScales();
     SetIcon(icon_image_->image_skia(), false);
     SetName(extension->name());
   }
 
  private:
   // Overridden from app_list::AppListItem:
-  virtual void Activate(int event_flags) override {
+  void Activate(int event_flags) override {
     ExtensionsDelegate::Get(browser_context_)->LaunchApp(extension_->id());
   }
 
   scoped_refptr<const extensions::Extension> extension_;
   content::BrowserContext* browser_context_;
   scoped_ptr<extensions::IconImage> icon_image_;
 
   DISALLOW_COPY_AND_ASSIGN(AppItem);
 };
 
@@ skipping 48 matching lines @@
 }
 
 void ExtensionAppModelBuilder::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
     const extensions::Extension* extension,
     extensions::UninstallReason reason) {
   model_->DeleteItem(extension->id());
 }
 
 }  // namespace athena