message: Clamp stable target bitrate to min/max allocated bitrate.
  Currently, the stable target can grow to 2x the max allocated bitrate.
  Cr-Commit-Position: refs/heads/master@{#30776}
diff: @@ -507,6 +507,7 @@ uint32_t AudioSendStream::OnBitrateUpdated(BitrateAllocationUpdate update) {
  // higher than max to allow for e.g. extra FEC.
  auto constraints = GetMinMaxBitrateConstraints();
  update.target_bitrate.Clamp(constraints.min, constraints.max);
  + update.stable_target_bitrate.Clamp(constraints.min, constraints.max);
  channel_send_->OnBitrateAllocation(update);
  