Revert 130180 - Move media/audio files into media namespace

media/audio/mac/audio_output_mac.h

Index: media/audio/mac/audio_output_mac.h
===================================================================
--- media/audio/mac/audio_output_mac.h	(revision 130181)
+++ media/audio/mac/audio_output_mac.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -14,8 +14,6 @@
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_parameters.h"
 
-namespace media {
-
 class AudioManagerMac;
 
 // Implementation of AudioOuputStream for Mac OS X using the audio queue service
@@ -99,6 +97,4 @@
   DISALLOW_COPY_AND_ASSIGN(PCMQueueOutAudioOutputStream);
 };
 
-}  // namespace media
-
 #endif  // MEDIA_AUDIO_MAC_AUDIO_OUTPUT_MAC_H_