Moves CustomFrameViewAsh to common

ash/frame/frame_border_hit_test_controller.h

-// Copyright 2013 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 ASH_FRAME_FRAME_BORDER_HITTEST_CONTROLLER_H_
-#define ASH_FRAME_FRAME_BORDER_HITTEST_CONTROLLER_H_
-
-#include "ash/ash_export.h"
-#include "base/macros.h"
-
-namespace aura {
-class Window;
-}
-
-namespace views {
-class Widget;
-}
-
-namespace ash {
-
-// Class which manages the hittest override bounds for |frame|.
-// TODO(sky): remove this class entirely. It isn't really needed.
-class ASH_EXPORT FrameBorderHitTestController {
- public:
-  explicit FrameBorderHitTestController(views::Widget* frame);
-  virtual ~FrameBorderHitTestController();
-
- private:
-  // The window whose hittest override bounds are being managed.
-  aura::Window* frame_window_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameBorderHitTestController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_FRAME_FRAME_BORDER_HITTEST_CONTROLLER_H_