Instead of disabling probing when the total allocated bitrate has
changed in goog_cc, it can be done via a new field trial parameter,
"probe_max_allocation". Not that the currently used flag
RateControlSettings::TriggerProbeOnMaxAllocatedBitrateChange() is per
default enabled and will be cleaned up in a follow up cl.
The field trial flag "skip_if_est_larger_than_fraction_of_max" now also
skip probing if the current estimate is larger than the currently max
allocated bitrate. ie, alr probing is skippe if the current estimate >
max configured bitrate or current estimate > max send bitrate of all
streams.
Bug: webrtc:14392
Change-Id: I2a09be39f85a9122410edd5acb1158ece12fca60
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/282860
Reviewed-by: Diep Bui <diepbp@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38597}