This is a race that can happen if a nack arrives before media is disabled, but the packet is not processed until after the disabling is complete. Bug: webrtc:10633, b/138636698 Change-Id: Ic90462b815163ab58c324e5cdb95c8d199c0b772 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/147277 Reviewed-by: Sebastian Jansson <srte@webrtc.org> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28718}