This allows trading off some potential media quality for CPU usage. Bug: webrtc:8975 Change-Id: I447a03f596e9e711ba5d7038fe71f27bd80bf795 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/172085 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#30936}