New accessor function VideoReceiveStream::Config::Rtp::AddRtxBinding

Needed temporarily, to enable landing of
https://codereview.webrtc.org/3000273002/ without breaking downstream
applications.

Bug: webrtc:7135
Change-Id: Ib0783d2e97cc62bb0a6e6fb394a29a5373938054
Reviewed-on: https://chromium-review.googlesource.com/631679
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Original-Commit-Position: refs/heads/master@{#19490}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 23bdb6773ed0e3f8ca2ab7722a4ffe7830527f95
1 file changed