media: Cleanup class/struct forward declarations

media/formats/mp2t/es_parser_adts.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_FORMATS_MP2T_ES_PARSER_ADTS_H_
 #define MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <memory>
 #include <utility>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/media_export.h"
 #include "media/formats/mp2t/es_parser.h"
 #include "media/formats/mpeg/adts_stream_parser.h"
 
 namespace media {
 class AudioTimestampHelper;
-class BitReader;
-class OffsetByteQueue;
-class StreamParserBuffer;
 }
 
 namespace media {
 namespace mp2t {
 
 class MEDIA_EXPORT EsParserAdts : public EsParser {
  public:
   typedef base::Callback<void(const AudioDecoderConfig&)> NewAudioConfigCB;
 
   EsParserAdts(const NewAudioConfigCB& new_audio_config_cb,
@@ skipping 44 matching lines @@
 
   ADTSStreamParser adts_parser_;
 
   DISALLOW_COPY_AND_ASSIGN(EsParserAdts);
 };
 
 }  // namespace mp2t
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_