Support multiple media tracks in MSE / ChunkDemuxer

media/blink/webmediasource_impl.cc

Index: media/blink/webmediasource_impl.cc
diff --git a/media/blink/webmediasource_impl.cc b/media/blink/webmediasource_impl.cc
index 7aed8dbd142fe9da3108024057ed3840f509633c..579937b56c429523d877f51181e9848f599091a5 100644
--- a/media/blink/webmediasource_impl.cc
+++ b/media/blink/webmediasource_impl.cc
@@ -38,12 +38,8 @@ WebMediaSource::AddStatus WebMediaSourceImpl::addSourceBuffer(
     blink::WebSourceBuffer** source_buffer) {
   std::string id = base::GenerateGUID();
 
-  std::vector<std::string> parsed_codec_ids;
-  media::ParseCodecString(codecs.utf8().data(), &parsed_codec_ids, false);
-
-  WebMediaSource::AddStatus result =
-      static_cast<WebMediaSource::AddStatus>(
-          demuxer_->AddId(id, type.utf8().data(), parsed_codec_ids));
+  WebMediaSource::AddStatus result = static_cast<WebMediaSource::AddStatus>(
+      demuxer_->AddId(id, type.utf8().data(), codecs.utf8().data()));
 
   if (result == WebMediaSource::AddStatusOk)
     *source_buffer = new WebSourceBufferImpl(id, demuxer_);