Move files from ui/views/corewm to ui/wm/core

ui/views/corewm/transient_window_stacking_client.h

-// Copyright (c) 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 UI_VIEWS_COREWM_TRANSIENT_WINDOW_STACKING_CLIENT_H_
-#define UI_VIEWS_COREWM_TRANSIENT_WINDOW_STACKING_CLIENT_H_
-
-#include "ui/aura/client/window_stacking_client.h"
-#include "ui/views/views_export.h"
-
-namespace views {
-namespace corewm {
-
-class TransientWindowManager;
-
-class VIEWS_EXPORT TransientWindowStackingClient
-    : public aura::client::WindowStackingClient {
- public:
-  TransientWindowStackingClient();
-  virtual ~TransientWindowStackingClient();
-
-  // WindowStackingClient:
-  virtual bool AdjustStacking(aura::Window** child,
-                              aura::Window** target,
-                              aura::Window::StackDirection* direction) OVERRIDE;
-
- private:
-  // Purely for DCHECKs.
-  friend class TransientWindowManager;
-
-  static TransientWindowStackingClient* instance_;
-
-  DISALLOW_COPY_AND_ASSIGN(TransientWindowStackingClient);
-};
-
-}  // namespace corewm
-}  // namespace views
-
-#endif  // UI_VIEWS_COREWM_TRANSIENT_WINDOW_STACKING_CLIENT_H_