This behavior seems to conform to expectations from the rate allocators, using this signal to chose which layers to enable and then distributing the remaining bandwidth to the activated layers. Bug: webrtc:10126 Change-Id: If0e1b27dc672ec2fbb30a5f5ac734e5ed4b42e45 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151306 Reviewed-by: Sebastian Jansson <srte@webrtc.org> Commit-Queue: Florent Castelli <orphis@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29065}