It only affects the write-only member |incoming_payload_type_|. Bug: webrtc:8995 Change-Id: I0cf86a6d0603c809367105cee31eb1b8b2802d32 Reviewed-on: https://webrtc-review.googlesource.com/61040 Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22382}