ProbingEstimator: Erase history based on time threshold

webrtc/modules/congestion_controller/probe_bitrate_estimator_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 11 matching lines @@
 class TestProbeBitrateEstimator : public ::testing::Test {
  public:
   TestProbeBitrateEstimator() : probe_bitrate_estimator_() {}
 
   void AddPacketFeedback(int probe_cluster_id,
                          size_t size_bytes,
                          int64_t send_time_ms,
                          int64_t arrival_time_ms) {
     PacketInfo info(arrival_time_ms, send_time_ms, 0, size_bytes,
                     probe_cluster_id);
-    ProbingResult res = probe_bitrate_estimator_.PacketFeedback(info);
-    if (res.valid())
-      results_.emplace_back(res.bps, res.timestamp);
+    int bps = probe_bitrate_estimator_.HandleProbeAndEstimateBitrate(info, 1);
+    if (bps > 0)
+      results_.emplace_back(bps, info.arrival_time_ms);
   }
 
   void CheckResult(size_t index, int bps, int max_diff, int64_t timestamp) {
     ASSERT_GT(results_.size(), index);
     EXPECT_NEAR(results_[index].first, bps, max_diff);
     EXPECT_EQ(results_[index].second, timestamp);
   }
 
  protected:
   std::vector<std::pair<int, int64_t>> results_;
@@ skipping 74 matching lines @@
   AddPacketFeedback(1, 1000, 75, 90);
 
   CheckResult(0, 1200000, 10, 90);
 
   AddPacketFeedback(0, 1000, 40, 60);
 
   EXPECT_EQ(1ul, results_.size());
 }
 
 }  // namespace webrtc