By default, this will tell the remote side that I am supporting ICE renomination. It does not use ICE renomination yet even if the remote side supports it. R=deadbeef@webrtc.org, pthatcher@webrtc.org, skvlad@webrtc.org Review URL: https://codereview.webrtc.org/2224563004 . Cr-Commit-Position: refs/heads/master@{#13998}