Move media/audio files into media namespace

media/audio/mac/audio_low_latency_output_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_low_latency_output_mac.h"
 
 #include <CoreServices/CoreServices.h>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/mac/mac_logging.h"
 #include "media/audio/audio_util.h"
 #include "media/audio/mac/audio_manager_mac.h"
 
+namespace media {
+
 // Reorder PCM from AAC layout to Core Audio 5.1 layout.
 // TODO(fbarchard): Switch layout when ffmpeg is updated.
 template<class Format>
 static void SwizzleCoreAudioLayout5_1(Format* b, uint32 filled) {
   static const int kNumSurroundChannels = 6;
   Format aac[kNumSurroundChannels];
   for (uint32 i = 0; i < filled; i += sizeof(aac), b += kNumSurroundChannels) {
     memcpy(aac, b, sizeof(aac));
     b[0] = aac[1];  // L
     b[1] = aac[2];  // R
@@ skipping 312 matching lines @@
   // Get the delay between the moment getting the callback and the scheduled
   // time stamp that tells when the data is going to be played out.
   UInt64 output_time_ns = AudioConvertHostTimeToNanos(
       output_time_stamp->mHostTime);
   UInt64 now_ns = AudioConvertHostTimeToNanos(AudioGetCurrentHostTime());
   double delay_frames = static_cast<double>
       (1e-9 * (output_time_ns - now_ns) * format_.mSampleRate);
 
   return (delay_frames + hardware_latency_frames_);
 }
+
+}  // namespace media