RIDs will now appear in the sent packets when they are supplied.
This is relevant for the Simulcast scenario which uses RIDs to
identify the different layers.
Bug: webrtc:10074
Change-Id: I2f281abc144f467e151a30ec13b8c375be4ac3e6
Reviewed-on: https://webrtc-review.googlesource.com/c/124140
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Seth Hampson <shampson@webrtc.org>
Commit-Queue: Amit Hilbuch <amithi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26843}
b000b716d4