Add missing macros includes in media/.

media/base/demuxer_stream_provider.h

 // Copyright 2014 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_DEMUXER_STREAM_PROVIDER_H_
 #define MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_
 
+#include "base/macros.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 class MEDIA_EXPORT DemuxerStreamProvider {
  public:
   DemuxerStreamProvider();
   virtual ~DemuxerStreamProvider();
 
   // Returns the first stream of the given stream type (which is not allowed
   // to be DemuxerStream::TEXT), or NULL if that type of stream is not present.
   virtual DemuxerStream* GetStream(DemuxerStream::Type type) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProvider);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_