Reduce logging frequency in bwe simulations.

webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h

Index: webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h
diff --git a/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h b/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h
index 51e29e34c220a65b557b8cf0c4d20cc209a9cd96..ca7f6dbddc028a53ce73d2c6cbeacae670a8ac8c 100644
--- a/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h
+++ b/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.h
@@ -45,6 +45,7 @@ class FullBweSender : public BweSender, public RemoteBitrateObserver {
   SendTimeHistory send_time_history_;
   bool has_received_ack_;
   uint16_t last_acked_seq_num_;
+  int64_t last_log_time_ms_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(FullBweSender);
 };