Previously when BitrateControllerImpl::OnDelayBasedBweResult() is called as result of a probe it was calling bandwidth_estimation_.SetSendBitrate(), but not UpdateDelayBasedEstimate(). As result SendSideBandwidthEstimation was effectively ignoring probe results as it kept the old delay_based_bitrate_bps_ value, which caps the resulting bitrate. BUG=webrtc:6332,webrtc:6710 Review-Url: https://codereview.webrtc.org/2481383002 Cr-Commit-Position: refs/heads/master@{#15071}