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

ash/wm/maximize_mode/maximize_mode_window_manager.h

 // Copyright 2014 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_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_
 #define ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <unordered_set>
 
 #include "ash/ash_export.h"
-#include "ash/shell_observer.h"
+#include "ash/common/shell_observer.h"
 #include "ash/wm/window_state.h"
 #include "base/macros.h"
 #include "ui/aura/window_observer.h"
 #include "ui/display/display_observer.h"
 
 namespace ash {
 class MaximizeModeController;
 class MaximizeModeWindowState;
 
 namespace wm {
@@ skipping 107 matching lines @@
   bool backdrops_hidden_;
 
   std::unique_ptr<wm::MaximizeModeEventHandler> event_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(MaximizeModeWindowManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_WINDOW_MANAGER_H_