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

views/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 VIEWS_VIEW_H_
 #define VIEWS_VIEW_H_
 #pragma once
 
 #include <algorithm>
 #include <map>
@@ skipping 80 matching lines @@
 //   LayoutManager interface can be used to lay out children if required.
 //
 //   It is up to the subclass to implement Painting and storage of subclass -
 //   specific properties and functionality.
 //
 //   Unless otherwise documented, views is not thread safe and should only be
 //   accessed from the main thread.
 //
 /////////////////////////////////////////////////////////////////////////////
 class VIEWS_EXPORT View : public ui::LayerDelegate,
-                          public AcceleratorTarget {
+                          public ui::AcceleratorTarget {
  public:
   typedef std::vector<View*> Views;
 
   // TO BE MOVED ---------------------------------------------------------------
   // TODO(beng): These methods are to be moved to other files/classes.
 
   // TODO(beng): delete
   // Set whether this view is hottracked. A disabled view cannot be hottracked.
   // If flag differs from the current value, SchedulePaint is invoked.
   virtual void SetHotTracked(bool flag);
@@ skipping 526 matching lines @@
   // method several times.
   virtual void AddAccelerator(const Accelerator& accelerator);
 
   // Removes the specified accelerator for this view.
   virtual void RemoveAccelerator(const Accelerator& accelerator);
 
   // Removes all the keyboard accelerators for this view.
   virtual void ResetAccelerators();
 
   // Overridden from AcceleratorTarget:
-  virtual bool AcceleratorPressed(const Accelerator& accelerator) OVERRIDE;
+  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
 
   // Focus ---------------------------------------------------------------------
 
   // Returns whether this view currently has the focus.
   virtual bool HasFocus() const;
 
   // Returns the view that should be selected next when pressing Tab.
   View* GetNextFocusableView();
   const View* GetNextFocusableView() const;
 
@@ skipping 785 matching lines @@
   base::win::ScopedComPtr<NativeViewAccessibilityWin>
       native_view_accessibility_win_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_VIEW_H_