Converts mash to use the common non-client frame

ash/mus/frame/frame_border_hit_test_controller.h

-// Copyright 2015 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_MUS_FRAME_FRAME_BORDER_HIT_TEST_CONTROLLER_H_
-#define ASH_MUS_FRAME_FRAME_BORDER_HIT_TEST_CONTROLLER_H_
-
-#include "base/macros.h"
-
-namespace gfx {
-class Insets;
-class Point;
-}
-
-namespace views {
-class NonClientFrameView;
-class Widget;
-}
-
-namespace ash {
-namespace mus {
-class FrameCaptionButtonContainerView;
-
-// Class which manages the hittest override bounds for |frame|.
-class FrameBorderHitTestController {
- public:
-  // Returns the amount of space resizes are allowed to occur outside the
-  // bounds of windows.
-  static gfx::Insets GetResizeOutsideBoundsSize();
-
-  // Does the non client hit test on behalf of |view|. |point_in_widget| must be
-  // in the coordinates of |view|'s widget.
-  static int NonClientHitTest(
-      views::NonClientFrameView* view,
-      FrameCaptionButtonContainerView* caption_button_container,
-      const gfx::Point& point_in_widget);
-
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(FrameBorderHitTestController);
-};
-
-}  // namespace mus
-}  // namespace ash
-
-#endif  // ASH_MUS_FRAME_FRAME_BORDER_HIT_TEST_CONTROLLER_H_