Moves mash/wm into ash/mus

mash/wm/container_ids.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_CONTAINER_IDS_H_
-#define MASH_WM_CONTAINER_IDS_H_
-
-#include <stddef.h>
-
-namespace ash {
-namespace mojom {
-enum class Container;
-}
-}
-
-namespace mash {
-namespace wm {
-// Id used when there is no corresponding ash container.
-const int kUnknownAshId = -1;
-
-// The set of containers that allow their children to be active.
-extern const ash::mojom::Container kActivationContainers[];
-
-// Number of kActivationContainers.
-extern const size_t kNumActivationContainers;
-
-// Converts window ids between ash (ash/common/shell_window_ids.h) and
-// mash.
-ash::mojom::Container AshContainerToMashContainer(int shell_window_id);
-int MashContainerToAshContainer(ash::mojom::Container container);
-
-}  // namespace wm
-}  // namespace mash
-
-#endif  // MASH_WM_CONTAINER_IDS_H_