Removes/promotes functions from WmWindowMus to WmWindowAura

ash/mus/bridge/wm_window_mus_test_api.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 ASH_MUS_BRIDGE_WM_WINDOW_MUS_TEST_API_H_
-#define ASH_MUS_BRIDGE_WM_WINDOW_MUS_TEST_API_H_
-
-#include "ash/mus/bridge/wm_window_mus.h"
-
-namespace ash {
-namespace mus {
-
-class WmWindowMusTestApi {
- public:
-  // Used by tests to set the default value of
-  // |WmWindowMus::default_use_empty_minimum_size_for_testing_|. This is needed
-  // as tests don't have a good way to reset the value of
-  // |use_empty_minimum_size_for_testing_| before the minimum size is queried.
-  class GlobalMinimumSizeLock {
-   public:
-    GlobalMinimumSizeLock();
-    ~GlobalMinimumSizeLock();
-
-   private:
-    // Number of instances of GlobalMinimumSizeLock that have been created.
-    static int instance_count_;
-
-    DISALLOW_COPY_AND_ASSIGN(GlobalMinimumSizeLock);
-  };
-
-  explicit WmWindowMusTestApi(WmWindow* window)
-      : WmWindowMusTestApi(WmWindowMus::AsWmWindowMus(window)) {}
-  explicit WmWindowMusTestApi(WmWindowMus* window) : window_(window) {}
-  ~WmWindowMusTestApi() {}
-
-  void set_use_empty_minimum_size(bool value) {
-    window_->use_empty_minimum_size_for_testing_ = true;
-  }
-
- private:
-  static void SetDefaultUseEmptyMinimumSizeForTesting(bool value);
-
-  WmWindowMus* window_;
-
-  DISALLOW_COPY_AND_ASSIGN(WmWindowMusTestApi);
-};
-
-}  // namespace mus
-}  // namespace ash
-
-#endif  // ASH_MUS_BRIDGE_WM_WINDOW_MUS_TEST_API_H_