Refactored incoming bitrate estimator.

webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc

Index: webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc
diff --git a/webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc b/webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc
index 479ecb457b30b19f7cb4a02475ad19f1bcad6f17..6bcafc465d32e132fa644f6a4a02d98a6f1584b0 100644
--- a/webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc
+++ b/webrtc/modules/congestion_controller/delay_based_bwe_unittest_helper.cc
@@ -14,6 +14,7 @@
 #include <utility>
 
 #include "webrtc/base/checks.h"
+#include "webrtc/base/ptr_util.h"
 #include "webrtc/modules/congestion_controller/delay_based_bwe.h"
 
 namespace webrtc {
@@ -149,7 +150,10 @@ int64_t StreamGenerator::GenerateFrame(std::vector<PacketFeedback>* packets,
 
 DelayBasedBweTest::DelayBasedBweTest()
     : clock_(100000000),
-      bitrate_estimator_(new DelayBasedBwe(nullptr, &clock_)),
+      incoming_bitrate_estimator_(rtc::MakeUnique<IncomingBitrateEstimator>()),
+      bitrate_estimator_(new DelayBasedBwe(nullptr,
+                                           incoming_bitrate_estimator_.get(),
+                                           &clock_)),
       stream_generator_(new test::StreamGenerator(1e6,  // Capacity.
                                                   clock_.TimeInMicroseconds())),
       arrival_time_offset_ms_(0),