Move media/audio files into media namespace

media/audio/linux/alsa_output.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.
 //
 // THREAD SAFETY
 //
 // AlsaPcmOutputStream object is *not* thread-safe and should only be used
 // from the audio thread.  We DCHECK on this assumption whenever we can.
 //
 // SEMANTICS OF Close()
@@ skipping 31 matching lines @@
 #include "base/message_loop.h"
 #include "base/stl_util.h"
 #include "base/time.h"
 #include "media/audio/audio_util.h"
 #include "media/audio/linux/alsa_util.h"
 #include "media/audio/linux/alsa_wrapper.h"
 #include "media/audio/linux/audio_manager_linux.h"
 #include "media/base/data_buffer.h"
 #include "media/base/seekable_buffer.h"
 
+namespace media {
+
 // Amount of time to wait if we've exhausted the data source.  This is to avoid
 // busy looping.
 static const uint32 kNoDataSleepMilliseconds = 10;
 
 // Mininum interval between OnMoreData() calls.
 const uint32 kMinIntervalBetweenOnMoreDataCallsInMs = 5;
 
 // According to the linux nanosleep manpage, nanosleep on linux can miss the
 // deadline by up to 10ms because the kernel timeslice is 10ms.  Give a 2x
 // buffer to compensate for the timeslice, and any additional slowdowns.
@@ skipping 728 matching lines @@
   if (source_callback_)
     source_callback_->OnError(this, code);
 }
 
 // Changes the AudioSourceCallback to proxy calls to.  Pass in NULL to
 // release ownership of the currently registered callback.
 void AlsaPcmOutputStream::set_source_callback(AudioSourceCallback* callback) {
   DCHECK(IsOnAudioThread());
   source_callback_ = callback;
 }
+
+}  // namespace media