Log to RtcEventLog when loss based estimate is changed.

webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc

Index: webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
diff --git a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
index 825828b45209d1bb1794e35a7d3a768dcdb33897..c4aa435669d8f8c3df519b2b313cee23ce058bc3 100644
--- a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
+++ b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
@@ -65,9 +65,10 @@ TEST(SendSideBweTest, InitialDelayBasedBweWithProbing) {
 
 TEST(SendSideBweTest, DoesntReapplyBitrateDecreaseWithoutFollowingRemb) {
   MockRtcEventLog event_log;
+  EXPECT_CALL(event_log, LogLossBasedBweUpdate(testing::Gt(0), 0, 0)).Times(1);
   EXPECT_CALL(event_log,
               LogLossBasedBweUpdate(testing::Gt(0), testing::Gt(0), 0))
-      .Times(1);
+      .Times(2);
   SendSideBandwidthEstimation bwe(&event_log);
   static const int kMinBitrateBps = 100000;
   static const int kInitialBitrateBps = 1000000;