
The extension (and thus structures to carry it) are designed in particular for client<->SFU link. Putting the structure into api acknowledges it can be reused by SFU projects Bug: webrtc:10342 Change-Id: I8ca1f5046abadf6aa16200443c4892e9a2a928b4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/166467 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Björn Terelius <terelius@webrtc.org> Cr-Commit-Position: refs/heads/master@{#30324}