Add missing macros includes in media/.

media/filters/ffmpeg_h264_to_annex_b_bitstream_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.
 
 #ifndef MEDIA_FILTERS_FFMPEG_H264_TO_ANNEX_B_BITSTREAM_CONVERTER_H_
 #define MEDIA_FILTERS_FFMPEG_H264_TO_ANNEX_B_BITSTREAM_CONVERTER_H_
 
+#include "base/macros.h"
 #include "media/base/media_export.h"
 #include "media/filters/ffmpeg_bitstream_converter.h"
 #include "media/filters/h264_to_annex_b_bitstream_converter.h"
 
 // Forward declarations for FFmpeg datatypes used.
 struct AVCodecContext;
 struct AVPacket;
 
 namespace media {
 
@@ skipping 41 matching lines @@
   // Variable to hold a pointer to memory where we can access the global
   // data from the FFmpeg file format's global headers.
   AVCodecContext* stream_codec_context_;
 
   DISALLOW_COPY_AND_ASSIGN(FFmpegH264ToAnnexBBitstreamConverter);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_H264_TO_ANNEX_B_BITSTREAM_CONVERTER_H_