CongestrionControllerGenerator tracks received packets per SSRC.
Lost packets are included in rtcp:CongestionControlFeedback::Packets()
This is done in order to be able to track lost packets between
feedback packets.
Bug: webrtc:42225697
Change-Id: Ib47d9b55c3d150cb98a44a4f3997cfcfe6c5fbb5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366002
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43274}
079a8b4691