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

chrome/browser/ui/views/location_bar/location_bar_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_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 31 matching lines @@
 class InstantController;
 class KeywordHintView;
 class LocationIconView;
 class PageActionWithBadgeView;
 class SelectedKeywordView;
 class StarView;
 class TabContents;
 class TabContentsWrapper;
 class TemplateURLService;
 
+namespace ui {
+class Accelerator;
+}  // namespace ui
 namespace views {
-class Accelerator;
 class HorizontalPainter;
 class Label;
 }  // namespace views
 
 #if defined(OS_WIN) || defined(USE_AURA)
 class SuggestedTextView;
 #endif
 
 /////////////////////////////////////////////////////////////////////////////
 //
@@ skipping 364 matching lines @@
   // While animating, the host clips the widget and draws only the bottom
   // part of it. The view needs to know the pixel offset at which we are drawing
   // the widget so that we can draw the curved edges that attach to the toolbar
   // in the right location.
   int animation_offset_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(LocationBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_