Set send side bitrate estimate on successful probing attempt.

webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc

Index: webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
diff --git a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
index 94ea9dd395d68d2fd473829379f6b2e365999a45..217307b86c701c1c85b0f62655097110b80b023b 100644
--- a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
+++ b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
@@ -142,6 +142,10 @@ void TransportFeedbackAdapter::OnReceiveBitrateChanged(
   bitrate_controller_->UpdateDelayBasedEstimate(bitrate);
 }
 
+void TransportFeedbackAdapter::OnProbeBitrate(uint32_t bitrate) {
+  bitrate_controller_->UpdateProbeBitrate(bitrate);
+}
+
 void TransportFeedbackAdapter::OnRttUpdate(int64_t avg_rtt_ms,
                                            int64_t max_rtt_ms) {
   RTC_DCHECK(bitrate_estimator_.get() != nullptr);