Issue 4780: disabling multiple_routes breaks Turn/Tcp.
Issue 4780: disabling multiple_routes breaks Turn/Tcp.

BUG=webrtc:4780
R=pthatcher@chromium.org
TBR=pthatcher@webrtc.org

Review URL: https://codereview.webrtc.org/1196453005.

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#9473}

TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc