All plumbing was landed a while ago, but this call site was not updated. This change aims to reduce contention/overhead when posting large number of packets to the paced sender. Bug: webrtc:10809 Change-Id: I5486131b980e55331a38151bceee1cb96e35a942 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158203 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29599}