Splits PipelineImpl into main and media thread components.

media/formats/webm/webm_stream_parser_unittest.cc

 // Copyright 2016 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.
 
 #include "media/formats/webm/webm_stream_parser.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "media/base/decoder_buffer.h"
+#include "media/base/demuxer.h"
 #include "media/base/media_tracks.h"
 #include "media/base/mock_media_log.h"
 #include "media/base/stream_parser.h"
 #include "media/base/test_data_util.h"
 #include "media/base/text_track_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::SaveArg;
 using testing::_;
 
@@ skipping 128 matching lines @@
   params.detected_audio_track_count = 1;
   params.detected_video_track_count = 1;
   params.detected_text_track_count = 1;
   ParseWebMFile("bear-vp8-webvtt.webm", params);
   EXPECT_EQ(media_tracks_->tracks().size(), 2u);
   EXPECT_EQ(media_tracks_->tracks()[0]->type(), MediaTrack::Video);
   EXPECT_EQ(media_tracks_->tracks()[1]->type(), MediaTrack::Audio);
 }
 
 }  // namespace media