Use mojo app list interfaces for mash and classic ash.

ui/app_list/presenter/app_list_presenter.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 UI_APP_LIST_PRESENTER_APP_LIST_PRESENTER_H_
-#define UI_APP_LIST_PRESENTER_APP_LIST_PRESENTER_H_
-
-#include <stdint.h>
-
-#include "ui/app_list/presenter/app_list_presenter_export.h"
-
-namespace app_list {
-
-// Interface for showing and hiding the app list.
-class APP_LIST_PRESENTER_EXPORT AppListPresenter {
- public:
-  virtual ~AppListPresenter() {}
-
-  // Show/hide app list window. The |window| is used to deterime in
-  // which display (in which the |window| exists) the app list should
-  // be shown.
-  virtual void Show(int64_t display_id) = 0;
-
-  // Invoked to dismiss app list. This may leave the view open but hidden from
-  // the user.
-  virtual void Dismiss() = 0;
-
-  // Show the app list if it is visible, hide it if it is hidden.
-  virtual void ToggleAppList(int64_t display_id) = 0;
-
-  // Returns current visibility of the app list.
-  virtual bool IsVisible() const = 0;
-
-  // Returns target visibility. This may differ from IsVisible() if a
-  // visibility transition is in progress.
-  virtual bool GetTargetVisibility() const = 0;
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_PRESENTER_APP_LIST_PRESENTER_H_