Mojify demuxers and allow running {Chunk/FFmpeg}Demuxer in a Utility Process

media/filters/default_demuxer_factory.cc

Index: media/filters/default_demuxer_factory.cc
diff --git a/media/filters/default_demuxer_factory.cc b/media/filters/default_demuxer_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..422dfcbcda9ffbde6291bb678aefaad91d64e0a6
--- /dev/null
+++ b/media/filters/default_demuxer_factory.cc
@@ -0,0 +1,55 @@
+// Copyright 2017 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/filters/default_demuxer_factory.h"
+
+#include "base/single_thread_task_runner.h"
+#include "media/base/media_log.h"
+#include "media/filters/chunk_demuxer.h"
+
+#if !defined(MEDIA_DISABLE_FFMPEG)
+#include "media/filters/ffmpeg_demuxer.h"
+#endif
+
+namespace media {
+
+DefaultDemuxerFactory::DefaultDemuxerFactory(
+    const scoped_refptr<MediaLog>& media_log)
+    : media_log_(media_log) {}
+
+DefaultDemuxerFactory::~DefaultDemuxerFactory() {}
+
+std::unique_ptr<Demuxer> DefaultDemuxerFactory::CreateDemuxer(
+    const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
+    const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
+    DataSource* data_source,
+    const Demuxer::EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
+    const Demuxer::MediaTracksUpdatedCB& media_tracks_updated_cb) {
+#if !defined(MEDIA_DISABLE_FFMPEG)
+  std::unique_ptr<Demuxer> demuxer(new FFmpegDemuxer(
+      media_task_runner, data_source, encrypted_media_init_data_cb,
+      media_tracks_updated_cb, media_log_));
+#endif
+
+  return demuxer;
+}
+
+std::unique_ptr<Demuxer> DefaultDemuxerFactory::CreateDemuxerSourceBuffer(
+    const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
+    const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
+    const base::Closure& open_cb,
+    const Demuxer::EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
+    media::SourceBuffer** source_buffer_out) {
+  DCHECK(source_buffer_out);
+
+  media::ChunkDemuxer* chunk_demuxer = new media::ChunkDemuxer(
+      open_cb, encrypted_media_init_data_cb, media_log_);
+  *source_buffer_out = chunk_demuxer;
+
+  std::unique_ptr<Demuxer> demuxer(chunk_demuxer);
+
+  return demuxer;
+}
+
+}  // namespace media