Tommi 9d230d54c7 (Un/)Subscribe RtpVideoSender for feedback on the transport queue.
* RtpVideoSender now registers/unregisters for feedback callback
  inside of SetActive(), which runs on the transport queue.
* Transport feedback is given on the transport queue
* Registration/unregistration for feedback is done on the same
* Removed the last mutex from TransportFeedbackDemuxer.

Ultimately, this work is related to moving state from the Call
class, that's related to network configuration, but due to the code
is currently written is attached to the worker thread, over to the
Transport, where it's used (e.g. suspended_video_send_ssrcs_).

Bug: webrtc:13517, webrtc:11993
Change-Id: I057d0e2597e6cb746b335e0308599cd547350e56
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/248165
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35777}
2022-01-24 19:50:03 +00:00
..