Move media/audio files into media namespace

media/audio/mac/audio_input_mac.cc

 // 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.
 
 #include "media/audio/mac/audio_input_mac.h"
 
 #include <CoreServices/CoreServices.h>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "media/audio/audio_util.h"
 #include "media/audio/mac/audio_manager_mac.h"
 
 #if !defined(MAC_OS_X_VERSION_10_6) || \
     MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
 enum {
   kAudioQueueErr_EnqueueDuringReset = -66632
 };
 #endif
 
+namespace media {
+
 PCMQueueInAudioInputStream::PCMQueueInAudioInputStream(
     AudioManagerMac* manager, const AudioParameters& params)
     : manager_(manager),
       callback_(NULL),
       audio_queue_(NULL),
       buffer_size_bytes_(0),
       started_(false) {
   // We must have a manager.
   DCHECK(manager_);
   // A frame is one sample across all channels. In interleaved audio the per
@@ skipping 179 matching lines @@
       // TODO(joth): PCMQueueOutAudioOutputStream uses callback_ to provide an
       // extra guard for this situation, but it seems to introduce more
       // complications than it solves (memory barrier issues accessing it from
       // multiple threads, looses the means to indicate OnClosed to client).
       // Should determine if we need to do something equivalent here.
       return;
     }
     HandleError(err);
   }
 }
+
+}  // namespace media