The mutex is removed from the old existing implementation and instead a wrapper is implemented that ensure thread-safety.
Both the thread-safe and unsafe version share the same implementation of the logic.
There are two ways of construction:
webrtc::ReceiveStatistics::Create - thread-safe version.
webrtc::ReceiveStatistics::CreateUnLocked -thread-unsafe
Bug: none
Change-Id: Ica375919fda70180335c8f9ea666497811daf866
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/211240
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33419}
ee8cd20ec5