This has not been used since https://webrtc-review.googlesource.com/c/src/+/172721 . Bug: None Change-Id: Id617b9f6770b342b324fe0da84bf402cea1e783c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/223081 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Xavier Lepaul <xalep@webrtc.org> Commit-Queue: Byoungchan Lee <daniel.l@hpcnt.com> Cr-Commit-Position: refs/heads/master@{#34480}