Moving overhead counting to bitrate estimators.

webrtc/modules/congestion_controller/probe_bitrate_estimator.h

Index: webrtc/modules/congestion_controller/probe_bitrate_estimator.h
diff --git a/webrtc/modules/congestion_controller/probe_bitrate_estimator.h b/webrtc/modules/congestion_controller/probe_bitrate_estimator.h
index 7286f72af20e94de562a99b814961c4286ee9cda..87c8290ef11203fd3e1eeaf1494058ee3cb04ba0 100644
--- a/webrtc/modules/congestion_controller/probe_bitrate_estimator.h
+++ b/webrtc/modules/congestion_controller/probe_bitrate_estimator.h
@@ -47,6 +47,7 @@ class ProbeBitrateEstimator {
   std::map<int, AggregatedCluster> clusters_;
   RtcEventLog* const event_log_;
   rtc::Optional<int> estimated_bitrate_bps_;
+  const bool send_side_bwe_with_overhead_;
 };
 
 }  // namespace webrtc