C++11 override style change for athena

athena/system/status_icon_container_view.h

 // 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.
 
 #ifndef ATHENA_SYSTEM_STATUS_ICON_CONTAINER_VIEW_H_
 #define ATHENA_SYSTEM_STATUS_ICON_CONTAINER_VIEW_H_
 
 #include "athena/system/public/system_ui.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/views/view.h"
 
 namespace athena {
 
 // View which displays the system tray icons.
 class StatusIconContainerView : public views::View {
  public:
   StatusIconContainerView(SystemUI::ColorScheme color_scheme);
-  virtual ~StatusIconContainerView();
+  ~StatusIconContainerView() override;
 
  private:
   // views::View:
   virtual bool OnMousePressed(const ui::MouseEvent& event) override;
   virtual void OnGestureEvent(ui::GestureEvent* event) override;
   virtual void ChildPreferredSizeChanged(views::View* child) override;
 
   class PowerStatus;
   scoped_ptr<PowerStatus> power_status_;
 
   class NetworkStatus;
   scoped_ptr<NetworkStatus> network_status_;
 
   class UpdateStatus;
   scoped_ptr<UpdateStatus> update_status_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusIconContainerView);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_SYSTEM_STATUS_ICON_CONTAINER_VIEW_H_