Move media/audio files into media namespace

media/audio/mac/audio_low_latency_output_mac.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.
 //
 // Implementation notes:
 //
 // - It is recommended to first acquire the native sample rate of the default
 //   output device and then use the same rate when creating this object.
 //   Use AUAudioOutputStream::HardwareSampleRate() to retrieve the sample rate.
 // - Calling Close() also leads to self destruction.
 // - The latency consists of two parts:
 //   1) Hardware latency, which includes Audio Unit latency, audio device
 //      latency;
 //   2) The delay between the moment getting the callback and the scheduled time
 //      stamp that tells when the data is going to be played out.
 //
 #ifndef MEDIA_AUDIO_MAC_AUDIO_LOW_LATENCY_OUTPUT_MAC_H_
 #define MEDIA_AUDIO_MAC_AUDIO_LOW_LATENCY_OUTPUT_MAC_H_
 
 #include <AudioUnit/AudioUnit.h>
 
 #include "base/memory/scoped_ptr.h"
 #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
 // default output Audio Unit present in OS 10.4 and later.
 // The default output Audio Unit is for low-latency audio I/O.
 class AUAudioOutputStream : public AudioOutputStream {
  public:
   // The ctor takes all the usual parameters, plus |manager| which is the
   // the audio manager who is creating this object.
   AUAudioOutputStream(AudioManagerMac* manager,
@@ skipping 53 matching lines @@
 
   // Volume level from 0 to 1.
   float volume_;
 
   // Fixed playout hardware latency in frames.
   double hardware_latency_frames_;
 
   DISALLOW_COPY_AND_ASSIGN(AUAudioOutputStream);
 };
 
+}  // namespace media
+
 #endif  // MEDIA_AUDIO_MAC_AUDIO_LOW_LATENCY_OUTPUT_MAC_H_