Revert "chromeos: Move files in //ash/common to //ash, part 1"

ash/common/system/chromeos/power/tray_power.h

Index: ash/common/system/chromeos/power/tray_power.h
diff --git a/ash/system/power/tray_power.h b/ash/common/system/chromeos/power/tray_power.h
similarity index 92%
rename from ash/system/power/tray_power.h
rename to ash/common/system/chromeos/power/tray_power.h
index ebaf5c7b7ac343de2fca4b742700e00c390da85e..c04de6ca3b976cb28250ee8dd60bc074d7504041 100644
--- a/ash/system/power/tray_power.h
+++ b/ash/common/system/chromeos/power/tray_power.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSTEM_POWER_TRAY_POWER_H_
-#define ASH_SYSTEM_POWER_TRAY_POWER_H_
+#ifndef ASH_COMMON_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_
+#define ASH_COMMON_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_
 
 #include <memory>
 
-#include "ash/system/power/power_status.h"
-#include "ash/system/tray/system_tray_item.h"
+#include "ash/common/system/chromeos/power/power_status.h"
+#include "ash/common/system/tray/system_tray_item.h"
 #include "base/macros.h"
 
 namespace message_center {
@@ -114,4 +114,4 @@ class ASH_EXPORT TrayPower : public SystemTrayItem,
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_POWER_TRAY_POWER_H_
+#endif  // ASH_COMMON_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_