This is done instead of directly using AsyncPacketSocket::SignalReceived. Bug: webrtc:15368, webrtc:11943 Change-Id: I5671e66b270355188b1252138eced8e6c78ba7ad Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/327521 Commit-Queue: Per Kjellander <perkj@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41180}