Deprecating injection of event log into GoogCC factory.

Bug: webrtc:9883
Change-Id: I6087b4a0a2c934e6a9ab435fffaf2eb1fc2a29e4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/134644
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27824}
diff --git a/rtc_tools/event_log_visualizer/analyzer.cc b/rtc_tools/event_log_visualizer/analyzer.cc
index 00369e8..71c5f74 100644
--- a/rtc_tools/event_log_visualizer/analyzer.cc
+++ b/rtc_tools/event_log_visualizer/analyzer.cc
@@ -1166,9 +1166,8 @@
   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 @@
   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,