It was introduced with 98e71f57eaa9 ("Subtract an additional 5kbps of
the bitrate when backing off.").
Bug: webrtc:13402
Change-Id: Icf8c633fa5086ac1f854a112d8eaeaf47d1ae211
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/321844
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Auto-Submit: Emil Lundmark <lndmrk@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40836}