This CL adds a boolean indicating availability of per packet feedback
to the OnAllocationLimitsChanged callback on the
BitrateAllocator::LimitObserver interface.
This is part of a series of CLs tracking the transport feedback status
of the streams known to BitrateAllocator and reporting the status to
the congestion controller.
Bug: webrtc:8415
Change-Id: I5bd6e5796733da312556f2f681ff06d49ea2becc
Reviewed-on: https://webrtc-review.googlesource.com/63201
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22533}