Using 1 as channel_id doesn't make it clear that the goal was to provide an invalid channel. Bug: webrtc:345518625 Change-Id: Ie64f25b9398eafd3d0a9c8bab106e5277adef7df Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/353984 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42494}