The min bitrate is too low, and burstiness may cause overuse when first enabling the stream, if the total available bitrate is low. Bug: webrtc:9734 Change-Id: I399e0e809648f064feb87c73ece0c23a569b2750 Reviewed-on: https://webrtc-review.googlesource.com/99506 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24678}