To ensure padding, we increase 1 bit instead of 1kbps to avoid that 1kbps adds up over time. Not have unit test for this, but did manual/hamrit tests many times. Bug: webrtc:12707 Change-Id: I9b3160ab1808cb3a21ff0609446359a4ec3a4949 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/325520 Commit-Queue: Diep Bui <diepbp@webrtc.org> Reviewed-by: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41056}