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

ash/common/wm_window.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_WM_WINDOW_H_
-#define ASH_WM_WINDOW_H_
+#ifndef ASH_COMMON_WM_WINDOW_H_
+#define ASH_COMMON_WM_WINDOW_H_
 
 #include <memory>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "ui/aura/window_observer.h"
@@ skipping 364 matching lines @@
   static bool default_use_empty_minimum_size_for_testing_;
 
   // If true the minimum size is 0x0, default is minimum size comes from widget.
   bool use_empty_minimum_size_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(WmWindow);
 };
 
 }  // namespace ash
 
-#endif  // ASH_WM_WINDOW_H_
+#endif  // ASH_COMMON_WM_WINDOW_H_