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

chrome/browser/ui/views/keyboard_overlay_dialog_view.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 CHROME_BROWSER_UI_VIEWS_KEYBOARD_OVERLAY_DIALOG_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_KEYBOARD_OVERLAY_DIALOG_VIEW_H_
 #pragma once
 
 #include <set>
 
 #include "chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h"
 #include "chrome/browser/ui/webui/html_dialog_ui.h"
 #include "chrome/browser/ui/views/html_dialog_view.h"
 
+namespace ui {
+class Accelerator;
+}
+
 class BrowserView;
 
 // A customized dialog view for the keyboard overlay.
 class KeyboardOverlayDialogView : public HtmlDialogView {
  public:
   KeyboardOverlayDialogView(Profile* profile,
                             HtmlDialogUIDelegate* delegate,
                             BrowserView* parent_view);
   virtual ~KeyboardOverlayDialogView();
 
   // Overridden from views::View:
-  virtual bool AcceleratorPressed(const views::Accelerator& accelerator);
+  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator);
 
   // Shows the keyboard overlay.
   static void ShowDialog(gfx::NativeWindow owning_window, BrowserView* parent);
 
  private:
   virtual void RegisterDialogAccelerators() OVERRIDE;
 
   // Returns true if |accelerator| is an accelerator for closing the dialog.
-  bool IsCloseAccelerator(const views::Accelerator& accelerator);
+  bool IsCloseAccelerator(const ui::Accelerator& accelerator);
 
   // Points to the view from which this dialog is created.
   BrowserView* parent_view_;
 
   // Contains accelerators for closing this dialog.
-  std::set<views::Accelerator> close_accelerators_;
+  std::set<ui::Accelerator> close_accelerators_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardOverlayDialogView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_KEYBOARD_OVERLAY_DIALOG_VIEW_H_