Temporary hack to avoid assert errors when time moves backwards.
Temporary hack to avoid assert errors when time moves backwards.

Once we have eliminated all non-monotonic clocks, revert this change.

BUG=webrtc:5452

Review URL: https://codereview.webrtc.org/1618333002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#11361}

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