Add missing macros includes in media/.

media/base/mock_demuxer_host.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_MOCK_DEMUXER_HOST_H_
 #define MEDIA_BASE_MOCK_DEMUXER_HOST_H_
 
+#include "base/macros.h"
 #include "media/base/demuxer.h"
 #include "media/base/text_track_config.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace media {
 
 class MockDemuxerHost : public DemuxerHost {
  public:
   MockDemuxerHost();
   virtual ~MockDemuxerHost();
 
   MOCK_METHOD2(AddBufferedTimeRange, void(base::TimeDelta start,
                                           base::TimeDelta end));
   MOCK_METHOD1(SetDuration, void(base::TimeDelta duration));
   MOCK_METHOD1(OnDemuxerError, void(PipelineStatus error));
   MOCK_METHOD2(AddTextStream, void(DemuxerStream*,
                                    const TextTrackConfig&));
   MOCK_METHOD1(RemoveTextStream, void(DemuxerStream*));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockDemuxerHost);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_MOCK_DEMUXER_HOST_H_