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

ash/system/audio/tray_audio_delegate.h

Index: ash/system/audio/tray_audio_delegate.h
diff --git a/ash/common/system/chromeos/audio/tray_audio_delegate.h b/ash/system/audio/tray_audio_delegate.h
similarity index 91%
rename from ash/common/system/chromeos/audio/tray_audio_delegate.h
rename to ash/system/audio/tray_audio_delegate.h
index 39d4b2a948bc7f8c9ae3b44f0a20fa02e049ad35..3ce10d40f1573f47387248de38c3a53b43b44a0d 100644
--- a/ash/common/system/chromeos/audio/tray_audio_delegate.h
+++ b/ash/system/audio/tray_audio_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_DELEGATE_H_
-#define ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_DELEGATE_H_
+#ifndef ASH_SYSTEM_AUDIO_TRAY_AUDIO_DELEGATE_H_
+#define ASH_SYSTEM_AUDIO_TRAY_AUDIO_DELEGATE_H_
 
 namespace gfx {
 struct VectorIcon;
@@ -64,4 +64,4 @@ class TrayAudioDelegate {
 }  // namespace system
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_DELEGATE_H_
+#endif  // ASH_SYSTEM_AUDIO_TRAY_AUDIO_DELEGATE_H_