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

ash/system/tray/system_tray_item.h

 // Copyright (c) 2012 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_SYSTEM_TRAY_SYSTEM_TRAY_ITEM_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_ITEM_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
-#include "ash/login_status.h"
+#include "ash/common/login_status.h"
 #include "ash/public/cpp/shelf_types.h"
 #include "base/macros.h"
 #include "base/timer/timer.h"
 
 namespace views {
 class View;
 }
 
 namespace ash {
 class SystemTray;
@@ skipping 128 matching lines @@
 
   // Used to delay the transition to the detailed view.
   base::OneShotTimer transition_delay_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayItem);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_ITEM_H_