Start sending media from the peer when it's ICE connection state is connected. Bug: webrtc:10138 Change-Id: I9f5a1cd917317a3ebadd7c156563035b0bbecf2a Reviewed-on: https://webrtc-review.googlesource.com/c/121956 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Peter Slatala <psla@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26698}