[webrtc-pc] new commits pushed by taylor-b

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

* Make ufrag nullable in RTCIceCandidate description.

It was already made nullable in the WebIDL block, but I forgot to update
the description below.
  by Taylor Brandstetter

Received on Wednesday, 15 March 2017 20:33:50 UTC