Moves mash/wm into ash/mus

mash/wm/bridge/wm_shelf_mus.h

-// Copyright 2016 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 MASH_WM_BRIDGE_WM_SHELF_MUS_H_
-#define MASH_WM_BRIDGE_WM_SHELF_MUS_H_
-
-#include <stdint.h>
-
-#include <vector>
-
-#include "ash/common/wm/shelf/wm_shelf.h"
-#include "base/macros.h"
-#include "base/observer_list.h"
-
-namespace mash {
-namespace wm {
-
-class ShelfLayoutManager;
-
-// WmShelf implementation for mus.
-class WmShelfMus : public ash::wm::WmShelf {
- public:
-  explicit WmShelfMus(ShelfLayoutManager* shelf_layout_manager);
-  ~WmShelfMus() override;
-
-  // ash::wm::WmShelf:
-  ash::wm::WmWindow* GetWindow() override;
-  ash::wm::ShelfAlignment GetAlignment() const override;
-  ash::wm::ShelfBackgroundType GetBackgroundType() const override;
-  void UpdateVisibilityState() override;
-  ash::ShelfVisibilityState GetVisibilityState() const override;
-  void UpdateIconPositionForWindow(ash::wm::WmWindow* window) override;
-  gfx::Rect GetScreenBoundsOfItemIconForWindow(
-      ash::wm::WmWindow* window) override;
-  void AddObserver(ash::wm::WmShelfObserver* observer) override;
-  void RemoveObserver(ash::wm::WmShelfObserver* observer) override;
-
- private:
-  base::ObserverList<ash::wm::WmShelfObserver> observers_;
-
-  ShelfLayoutManager* shelf_layout_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(WmShelfMus);
-};
-
-}  // namespace wm
-}  // namespace mash
-
-#endif  // MASH_WM_BRIDGE_WM_SHELF_MUS_H_