Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/test/wm_window_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_TEST_WM_WINDOW_TEST_API_H_
 #define ASH_TEST_WM_WINDOW_TEST_API_H_
 
-#include "ash/wm_window.h"
+#include "ash/common/wm_window.h"
 
 namespace ash {
 
 class WmWindowTestApi {
  public:
   // Used by tests to set the default value of
   // |WmWindow::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 {
@@ skipping 19 matching lines @@
   static void SetDefaultUseEmptyMinimumSizeForTesting(bool value);
 
   WmWindow* window_;
 
   DISALLOW_COPY_AND_ASSIGN(WmWindowTestApi);
 };
 
 }  // namespace ash
 
 #endif  // ASH_TEST_WM_WINDOW_TEST_API_H_