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

views/bubble/bubble_delegate.cc

 // 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.
 
 #include "views/bubble/bubble_delegate.h"
 
 #include "ui/base/animation/slide_animation.h"
 #include "views/bubble/bubble_frame_view.h"
 #include "views/widget/widget.h"
 
@@ skipping 179 matching lines @@
   }
 }
 
 void BubbleDelegateView::ResetFade() {
   fade_animation_.reset();
   if (border_widget_)
     border_widget_->SetOpacity(original_opacity_);
   GetWidget()->SetOpacity(original_opacity_);
 }
 
-bool BubbleDelegateView::AcceleratorPressed(const Accelerator& accelerator) {
+bool BubbleDelegateView::AcceleratorPressed(
+    const ui::Accelerator& accelerator) {
   if (!close_on_esc() || accelerator.key_code() != ui::VKEY_ESCAPE)
     return false;
   if (fade_animation_.get())
     fade_animation_->Reset();
   GetWidget()->Close();
   return true;
 }
 
 void BubbleDelegateView::Init() {}
 
@@ skipping 46 matching lines @@
 }
 
 gfx::Rect BubbleDelegateView::GetBubbleClientBounds() const {
   gfx::Rect client_bounds(GetBubbleFrameView()->GetBoundsForClientView());
   client_bounds.Offset(border_widget_->GetWindowScreenBounds().origin());
   return client_bounds;
 }
 #endif
 
 }  // namespace views