ProbingEstimator: Erase history based on time threshold

webrtc/modules/congestion_controller/delay_based_bwe.cc

Index: webrtc/modules/congestion_controller/delay_based_bwe.cc
diff --git a/webrtc/modules/congestion_controller/delay_based_bwe.cc b/webrtc/modules/congestion_controller/delay_based_bwe.cc
index a7d2788ff862d56ad874ee4b4c77e162f0bd565f..641f15d986b7e6a0196d6fba144a5e0ccb7f1fc4 100644
--- a/webrtc/modules/congestion_controller/delay_based_bwe.cc
+++ b/webrtc/modules/congestion_controller/delay_based_bwe.cc
@@ -92,10 +92,9 @@ void DelayBasedBwe::IncomingPacketInfo(const PacketInfo& info) {
     last_seen_packet_ms_ = now_ms;
 
     if (info.probe_cluster_id != PacketInfo::kNotAProbe) {
-      ProbingResult probe_result =
-          probe_bitrate_estimator_.PacketFeedback(info);
-      if (probe_result.valid()) {
-        remote_rate_.SetEstimate(probe_result.bps, probe_result.timestamp);
+      int bps = probe_bitrate_estimator_.HandleProbeAndEstimateBitrate(info);
+      if (bps > 0) {
+        remote_rate_.SetEstimate(bps, info.arrival_time_ms);
         update_estimate = true;
       }
     }