Move views::Accelerator to ui in order to use it from aura code.

views/controls/menu/native_menu_views.h

 // Copyright (c) 2011 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 VIEWS_CONTROLS_MENU_NATIVE_MENU_LINUX_H_
 #define VIEWS_CONTROLS_MENU_NATIVE_MENU_LINUX_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 25 matching lines @@
   virtual gfx::NativeMenu GetNativeMenu() const OVERRIDE;
   virtual MenuAction GetMenuAction() const OVERRIDE;
   virtual void AddMenuListener(MenuListener* listener) OVERRIDE;
   virtual void RemoveMenuListener(MenuListener* listener) OVERRIDE;
   virtual void SetMinimumWidth(int width) OVERRIDE;
 
   // Overridden from MenuDelegate:
   virtual bool IsItemChecked(int id) const OVERRIDE;
   virtual bool IsCommandEnabled(int id) const OVERRIDE;
   virtual void ExecuteCommand(int id) OVERRIDE;
-  virtual bool GetAccelerator(int id, views::Accelerator* accelerator) OVERRIDE;
+  virtual bool GetAccelerator(int id, ui::Accelerator* accelerator) OVERRIDE;
 
  private:
   void AddMenuItemsFromModel(MenuItemView* parent, ui::MenuModel* model);
   void UpdateMenuFromModel(SubmenuView* menu, ui::MenuModel* model);
 
   // The attached model and delegate. Does not assume ownership.
   ui::MenuModel* model_;
   MenuItemView* root_;
   scoped_ptr<MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeMenuViews);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_MENU_NATIVE_MENU_LINUX_H_