and remove the forward declaration BUG=webrtc:42226242 Change-Id: I6bff2ef5048e641c834f9e03620ce038f6513065 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/376920 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <phancke@meta.com> Cr-Commit-Position: refs/heads/main@{#43941}