New PacedSender code path should have the transport sequence numbers
start at 1, just like before. At least some integration tests seem to
depend on this behavior so just to make sure there aren't any parts
doing the same that will break, let's keep the old behavior.
Bug: webrtc:10633
Change-Id: I87290fbfd4ecb2ef04bd5e49a955d0b2cc8d59b6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145722
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28573}
6cdab4613e