Add missing macros includes in media/.

media/base/audio_fifo.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_BASE_AUDIO_FIFO_H_
 #define MEDIA_BASE_AUDIO_FIFO_H_
 
+#include "base/macros.h"
 #include "media/base/audio_bus.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 // First-in first-out container for AudioBus elements.
 // The maximum number of audio frames in the FIFO is set at construction and
 // can not be extended dynamically.  The allocated memory is utilized as a
 // ring buffer.
 // This class is thread-unsafe.
@@ skipping 39 matching lines @@
 
   // Current write position.
   int write_pos_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioFifo);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_FIFO_H_