ec22183f43
This reverts commit I5b9d9036aa90eb0c652f6b17ea1162dea0362640 using spin lock (Global lock) for highly used lock may cause deadlock on ios Bug: None Change-Id: Ia7594d665bc17717299245b1a6cfcff18f273e77 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/160200 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29857}