Add missing macros includes in media/.

media/base/audio_converter.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.
 //
 // AudioConverter is a complete mixing, resampling, buffering, and channel
 // mixing solution for converting data from one set of AudioParameters to
 // another.
 //
 // For efficiency, pieces are only invoked when necessary; i.e.,
 //    - The resampler is only used if sample rates differ.
 //    - The FIFO is only used if buffer sizes differ.
 //    - The channel mixer is only used if channel layouts differ.
 //
 // Additionally, since resampling is the most expensive operation, input mixing
 // and channel down mixing are done prior to resampling.  Likewise, channel up
 // mixing is performed after resampling.
 
 #ifndef MEDIA_BASE_AUDIO_CONVERTER_H_
 #define MEDIA_BASE_AUDIO_CONVERTER_H_
 
 #include <list>
 
 #include "base/callback.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "media/audio/audio_parameters.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 class AudioBus;
 class AudioPullFifo;
 class ChannelMixer;
@@ skipping 107 matching lines @@
   // value from the input AudioParameters class.  Preserved to recreate internal
   // AudioBus structures on demand in response to varying frame size requests.
   const int input_channel_count_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioConverter);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_CONVERTER_H_