Moves mash/wm into ash/mus

mash/wm/test/wm_test_helper.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_TEST_WM_TEST_HELPER_H_
-#define MASH_WM_TEST_WM_TEST_HELPER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "components/mus/public/cpp/tests/test_window_tree_client_setup.h"
-#include "mash/wm/window_manager_application.h"
-
-namespace base {
-class MessageLoop;
-}
-
-namespace gfx {
-class Rect;
-}
-
-namespace mus {
-class Window;
-}
-
-namespace mash {
-namespace wm {
-
-class WmTestScreen;
-
-// WMTestHelper is responsible for configuring a WindowTreeClient that
-// does not talk to mus. Additionally a test Screen (WmTestScreen) is created.
-class WmTestHelper {
- public:
-  WmTestHelper();
-  ~WmTestHelper();
-
-  void Init();
-
-  WindowManagerApplication* window_manager_app() {
-    return &window_manager_app_;
-  }
-
-  WmTestScreen* screen() { return screen_; }
-
- private:
-  std::unique_ptr<base::MessageLoop> message_loop_;
-  mus::TestWindowTreeClientSetup window_tree_client_setup_;
-  WindowManagerApplication window_manager_app_;
-  WmTestScreen* screen_ = nullptr;  // Owned by |window_manager_app_|.
-
-  DISALLOW_COPY_AND_ASSIGN(WmTestHelper);
-};
-
-}  // namespace wm
-}  // namespace mash
-
-#endif  // MASH_WM_TEST_WM_TEST_HELPER_H_