mash: Move chromeos audio system tray files to //ash/common

ash/common/system/chromeos/audio/tray_audio_chromeos.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_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
-#define ASH_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
+#ifndef ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
+#define ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
 
 #include <stdint.h>
 
 #include "ash/ash_export.h"
 #include "ash/common/system/audio/tray_audio.h"
 #include "base/macros.h"
 #include "chromeos/dbus/power_manager_client.h"
 
 namespace ash {
 namespace tray {
@@ skipping 25 matching lines @@
   // Overriden from chromeos::PowerManagerClient::Observer.
   void SuspendDone(const base::TimeDelta& sleep_duration) override;
 
   tray::AudioDetailedView* audio_detail_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayAudioChromeOs);
 };
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
+#endif  // ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_