Implement InitSegmentReceived algorithm in blink

media/blink/websourcebuffer_impl.cc

Index: media/blink/websourcebuffer_impl.cc
diff --git a/media/blink/websourcebuffer_impl.cc b/media/blink/websourcebuffer_impl.cc
index d60a19f7d9133ecd0fa845d60bf335fce4f80a55..3973e4ce720bcd8cd49955672956ca00354f9c4a 100644
--- a/media/blink/websourcebuffer_impl.cc
+++ b/media/blink/websourcebuffer_impl.cc
@@ -184,6 +184,8 @@ void WebSourceBufferImpl::InitSegmentReceived(
     blink::WebSourceBufferClient::MediaTrackInfo trackInfo;
     trackInfo.trackType = mediaTrackTypeToBlink(track->type());
     trackInfo.id = blink::WebString::fromUTF8(track->id());
+    trackInfo.byteStreamTrackID = blink::WebString::fromUTF8(
+        base::UintToString(track->bytestream_track_id()));
     trackInfo.kind = blink::WebString::fromUTF8(track->kind());
     trackInfo.label = blink::WebString::fromUTF8(track->label());
     trackInfo.language = blink::WebString::fromUTF8(track->language());