tree ef9179717e9f15c8fb95c887488092ef1c1a3e90
parent a1163749fd80709f30f54a95a475b5958b98cab7
author Erik Språng <sprang@webrtc.org> 1593441464 +0200
committer Commit Bot <commit-bot@chromium.org> 1593449554 +0000

Removes locking in TransportFeedbackProxy.

The lock in TransportFeedbackProxy could cause a dead-lock if audio is
included in transport feedback messages, and necessitated a revert:
https://webrtc-review.googlesource.com/c/src/+/178100

This CL removes that lock and in fact the entire TransportFeedbackProxy
class, and instead sets the observer at construction time.
We therefore don't need to guard the observer pointer anymore.

For further context, see also internal bug b/153893626

Bug: webrtc:10809
Change-Id: I79b08d8d0e587a59736b383c3596a26836c33d2e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178207
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31583}