Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/modules/congestion_controller/congestion_controller.cc

Index: webrtc/modules/congestion_controller/congestion_controller.cc
diff --git a/webrtc/modules/congestion_controller/congestion_controller.cc b/webrtc/modules/congestion_controller/congestion_controller.cc
index f9e7e018e517e1c4b1a24f8b59cf87681c27b3d8..e59c1e2ae9b4216bfe9bd79b03aaa20e6e3cb87f 100644
--- a/webrtc/modules/congestion_controller/congestion_controller.cc
+++ b/webrtc/modules/congestion_controller/congestion_controller.cc
@@ -137,20 +137,23 @@ class WrappingBitrateEstimator : public RemoteBitrateEstimator {
 CongestionController::CongestionController(
     Clock* clock,
     BitrateObserver* bitrate_observer,
-    RemoteBitrateObserver* remote_bitrate_observer)
+    RemoteBitrateObserver* remote_bitrate_observer,
+    RtcEventLog* event_log)
     : clock_(clock),
       pacer_(new PacedSender(clock_,
-             &packet_router_,
-             BitrateController::kDefaultStartBitrateKbps,
-             PacedSender::kDefaultPaceMultiplier *
-                 BitrateController::kDefaultStartBitrateKbps,
-             0)),
+                             &packet_router_,
+                             BitrateController::kDefaultStartBitrateKbps,
+                             PacedSender::kDefaultPaceMultiplier *
+                                 BitrateController::kDefaultStartBitrateKbps,
+                             0)),
       remote_bitrate_estimator_(
           new WrappingBitrateEstimator(remote_bitrate_observer, clock_)),
       // Constructed last as this object calls the provided callback on
       // construction.
       bitrate_controller_(
-          BitrateController::CreateBitrateController(clock_, bitrate_observer)),
+          BitrateController::CreateBitrateController(clock_,
+                                                     bitrate_observer,
+                                                     event_log)),
       remote_estimator_proxy_(clock_, &packet_router_),
       transport_feedback_adapter_(bitrate_controller_.get(), clock_),
       min_bitrate_bps_(RemoteBitrateEstimator::kDefaultMinBitrateBps) {