With this change, webrtc will send RTCP transport feedback for all received packets that have a transport sequence number, if the header extension http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions is negotiated. I.e the SDP attribute a=rtcp-fb:96 transport-cc is ignored. Change-Id: I95d8d4405dc86a2f872f7883b7bafd623d5f7841 Bug: webrtc:14802 Change-Id: I95d8d4405dc86a2f872f7883b7bafd623d5f7841 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290403 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38980}