diff --git a/api/transport/goog_cc_factory.h b/api/transport/goog_cc_factory.h
index 10e240c72d..a988c61420 100644
--- a/api/transport/goog_cc_factory.h
+++ b/api/transport/goog_cc_factory.h
@@ -29,7 +29,9 @@ struct GoogCcFactoryConfig {
 class GoogCcNetworkControllerFactory
     : public NetworkControllerFactoryInterface {
  public:
-  explicit GoogCcNetworkControllerFactory(RtcEventLog* event_log);
+  GoogCcNetworkControllerFactory() = default;
+  explicit RTC_DEPRECATED GoogCcNetworkControllerFactory(
+      RtcEventLog* event_log);
   explicit GoogCcNetworkControllerFactory(
       NetworkStatePredictorFactoryInterface* network_state_predictor_factory);
 
diff --git a/modules/congestion_controller/goog_cc/goog_cc_network_control_unittest.cc b/modules/congestion_controller/goog_cc/goog_cc_network_control_unittest.cc
index e7eea9a2a2..5ec15e97c4 100644
--- a/modules/congestion_controller/goog_cc/goog_cc_network_control_unittest.cc
+++ b/modules/congestion_controller/goog_cc/goog_cc_network_control_unittest.cc
@@ -112,7 +112,7 @@ void UpdatesTargetRateBasedOnLinkCapacity(std::string test_name = "") {
 class GoogCcNetworkControllerTest : public ::testing::Test {
  protected:
   GoogCcNetworkControllerTest()
-      : current_time_(Timestamp::ms(123456)), factory_(&event_log_) {}
+      : current_time_(Timestamp::ms(123456)), factory_() {}
   ~GoogCcNetworkControllerTest() override {}
 
   void SetUp() override {
@@ -144,6 +144,7 @@ class GoogCcNetworkControllerTest : public ::testing::Test {
     config.constraints.min_data_rate = DataRate::kbps(min_data_rate_kbps);
     config.constraints.max_data_rate = DataRate::kbps(max_data_rate_kbps);
     config.constraints.starting_rate = DataRate::kbps(starting_bandwidth_kbps);
+    config.event_log = &event_log_;
     return config;
   }
   ProcessInterval DefaultInterval() {
diff --git a/rtc_tools/event_log_visualizer/analyzer.cc b/rtc_tools/event_log_visualizer/analyzer.cc
index 00369e8d92..71c5f74bd4 100644
--- a/rtc_tools/event_log_visualizer/analyzer.cc
+++ b/rtc_tools/event_log_visualizer/analyzer.cc
@@ -1166,9 +1166,8 @@ void EventLogAnalyzer::CreateGoogCcSimulationGraph(Plot* plot) {
   TimeSeries probe_results("Logged probe success", LineStyle::kNone,
                            PointStyle::kHighlight);
 
-  RtcEventLogNullImpl null_event_log;
   LogBasedNetworkControllerSimulation simulation(
-      absl::make_unique<GoogCcNetworkControllerFactory>(&null_event_log),
+      absl::make_unique<GoogCcNetworkControllerFactory>(),
       [&](const NetworkControlUpdate& update, Timestamp at_time) {
         if (update.target_rate) {
           target_rates.points.emplace_back(
@@ -1222,13 +1221,14 @@ void EventLogAnalyzer::CreateSendSideBweSimulationGraph(Plot* plot) {
   PacketRouter packet_router;
   PacedSender pacer(&clock, &packet_router, &null_event_log);
   TransportFeedbackAdapter transport_feedback;
-  auto factory = GoogCcNetworkControllerFactory(&null_event_log);
+  auto factory = GoogCcNetworkControllerFactory();
   TimeDelta process_interval = factory.GetProcessInterval();
   // TODO(holmer): Log the call config and use that here instead.
   static const uint32_t kDefaultStartBitrateBps = 300000;
   NetworkControllerConfig cc_config;
   cc_config.constraints.at_time = Timestamp::us(clock.TimeInMicroseconds());
   cc_config.constraints.starting_rate = DataRate::bps(kDefaultStartBitrateBps);
+  cc_config.event_log = &null_event_log;
   auto goog_cc = factory.Create(cc_config);
 
   TimeSeries time_series("Delay-based estimate", LineStyle::kStep,
diff --git a/rtc_tools/event_log_visualizer/log_simulation.cc b/rtc_tools/event_log_visualizer/log_simulation.cc
index 1595e35a1c..818775d145 100644
--- a/rtc_tools/event_log_visualizer/log_simulation.cc
+++ b/rtc_tools/event_log_visualizer/log_simulation.cc
@@ -35,6 +35,7 @@ void LogBasedNetworkControllerSimulation::ProcessUntil(Timestamp to_time) {
     config.constraints.at_time = to_time;
     config.constraints.min_data_rate = DataRate::kbps(30);
     config.constraints.starting_rate = DataRate::kbps(300);
+    config.event_log = &null_event_log_;
     controller_ = factory_->Create(config);
   }
   if (last_process_.IsInfinite() ||
diff --git a/rtc_tools/event_log_visualizer/log_simulation.h b/rtc_tools/event_log_visualizer/log_simulation.h
index f891db62c0..0387e3be98 100644
--- a/rtc_tools/event_log_visualizer/log_simulation.h
+++ b/rtc_tools/event_log_visualizer/log_simulation.h
@@ -45,6 +45,7 @@ class LogBasedNetworkControllerSimulation {
   void OnFeedback(const LoggedRtcpPacketTransportFeedback& feedback);
   void OnReceiverReport(const LoggedRtcpPacketReceiverReport& report);
   void OnIceConfig(const LoggedIceCandidatePairConfig& candidate);
+  RtcEventLogNullImpl null_event_log_;
 
   const std::function<void(const NetworkControlUpdate&, Timestamp)>
       update_handler_;