36f0137fd5
This feature is off by default and can be turned on by setting IceConfig. When turned on, we'll choose a Turn/Turn (UDP takes higher priroity) over the other types of connections while no any connection is writable. However, when there is best connection or there is pending triggered check, those will take higher priority. BUG=webrtc:4591 Review URL: https://codereview.webrtc.org/1577233006 Cr-Commit-Position: refs/heads/master@{#11850}