[webrtc-pc] new commits pushed by alvestrand

The following commits were just pushed by alvestrand to https://github.com/w3c/webrtc-pc:

* Clarify `RTCRtpContributingSource` and `RTCRtpSynchronizationSource`.
  by Chen Xing
https://github.com/w3c/webrtc-pc/commit/7f73dec08ea16ffc48deab3f2e1b10a794e78552

* Update the text to accommodate frames from multiple RTP packets.
  by Chen Xing
https://github.com/w3c/webrtc-pc/commit/ea02cfe7415a57edc4967f62271d369b5ab2f4da

* Merge remote-tracking branch 'upstream/master' into issue-2172-patch
  by Chen Xing
https://github.com/w3c/webrtc-pc/commit/7e7b8c57dbeac07634c7df9a343dce550050cb62

* Merge pull request #2190 from chxg/issue-2172-patch

Clarify `RTCRtpContributingSource` and `RTCRtpSynchronizationSource`.
  by Harald Alvestrand
https://github.com/w3c/webrtc-pc/commit/cad8c4b5f1ec5110082958d0836ffa88c46076c9

Received on Thursday, 9 May 2019 14:25:12 UTC