Move media/audio files into media namespace

media/audio/audio_input_stream_impl.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.
 
 #ifndef MEDIA_AUDIO_AUDIO_INPUT_STREAM_IMPL_H_
 #define MEDIA_AUDIO_AUDIO_INPUT_STREAM_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/synchronization/lock.h"
 #include "base/time.h"
 #include "media/audio/audio_io.h"
 
+namespace media {
+
 // AudioInputStreamImpl implements platform-independent parts of the
 // AudioInputStream interface. Each platform dependent implementation
 // should derive from this class.
 // TODO(henrika): we can probably break out more parts from our current
 // AudioInputStream implementation and move out to this class.
 class MEDIA_EXPORT AudioInputStreamImpl : public AudioInputStream {
  public:
   AudioInputStreamImpl();
   virtual ~AudioInputStreamImpl();
 
@@ skipping 34 matching lines @@
 
   // Protects |agc_is_enabled_| and |volume_| .
   base::Lock lock_;
 
   // Keeps track of the last time the microphone volume level was queried.
   base::Time last_volume_update_time_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputStreamImpl);
 };
 
+}  // namespace media
+
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_STREAM_IMPL_H_