daec488749
and add a unit test BUG=webrtc:11796 Change-Id: I8e73b22f007c15c862faad7ca881d93c14a3a46f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/184160 Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com> Cr-Commit-Position: refs/heads/master@{#32104}