C++11 override style change for athena

athena/wm/window_list_provider_impl.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_WM_WINDOW_LIST_PROVIDER_IMPL_H_
 #define ATHENA_WM_WINDOW_LIST_PROVIDER_IMPL_H_
 
 #include "athena/wm/public/window_list_provider.h"
 #include "base/gtest_prod_util.h"
 #include "ui/aura/window_observer.h"
 
 namespace athena {
 
 class WindowListProviderObserver;
 
 // This implementation of the WindowListProviderImpl uses the same order as in
 // the container window's stacking order.
 class ATHENA_EXPORT WindowListProviderImpl : public WindowListProvider,
                                              public aura::WindowObserver {
  public:
   explicit WindowListProviderImpl(aura::Window* container);
-  virtual ~WindowListProviderImpl();
+  ~WindowListProviderImpl() override;
 
   bool IsValidWindow(aura::Window* window) const;
 
   // WindowListProvider:
-  virtual void AddObserver(WindowListProviderObserver* observer) override;
-  virtual void RemoveObserver(WindowListProviderObserver* observer) override;
-  virtual const aura::Window::Windows& GetWindowList() const override;
-  virtual bool IsWindowInList(aura::Window* window) const override;
-  virtual void StackWindowFrontOf(aura::Window* window,
+  void AddObserver(WindowListProviderObserver* observer) override;
+  void RemoveObserver(WindowListProviderObserver* observer) override;
+  const aura::Window::Windows& GetWindowList() const override;
+  bool IsWindowInList(aura::Window* window) const override;
+  void StackWindowFrontOf(aura::Window* window,
                                   aura::Window*reference_window) override;
-  virtual void StackWindowBehindTo(aura::Window* window,
+  void StackWindowBehindTo(aura::Window* window,
                                    aura::Window*reference_window) override;
 
  private:
   void RecreateWindowList();
 
   // aura::WindowObserver:
-  virtual void OnWindowAdded(aura::Window* new_window) override;
-  virtual void OnWillRemoveWindow(aura::Window* old_window) override;
-  virtual void OnWindowStackingChanged(aura::Window* window) override;
+  void OnWindowAdded(aura::Window* new_window) override;
+  void OnWillRemoveWindow(aura::Window* old_window) override;
+  void OnWindowStackingChanged(aura::Window* window) override;
 
   aura::Window* container_;
   aura::Window::Windows window_list_;
   ObserverList<WindowListProviderObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowListProviderImpl);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_WM_WINDOW_LIST_PROVIDER_IMPL_H_