Add network quality change events to net log

components/cronet/android/cronet_url_request_context_adapter.cc

Index: components/cronet/android/cronet_url_request_context_adapter.cc
diff --git a/components/cronet/android/cronet_url_request_context_adapter.cc b/components/cronet/android/cronet_url_request_context_adapter.cc
index 96d1463a4bdc16b315d72b379e5890799e82a36d..2107498894dca6a12bc52fd27bfe311d2cb383ce 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.cc
+++ b/components/cronet/android/cronet_url_request_context_adapter.cc
@@ -624,7 +624,7 @@ void CronetURLRequestContextAdapter::InitializeOnNetworkThread(
         "TransportRTTOrDownstreamThroughput";
     network_quality_estimator_.reset(new net::NetworkQualityEstimator(
         std::unique_ptr<net::ExternalEstimateProvider>(), variation_params,
-        false, false));
+        false, false, g_net_log.Get().net_log()));
     // Set the socket performance watcher factory so that network quality
     // estimator is notified of socket performance metrics from TCP and QUIC.
     context_builder.set_socket_performance_watcher_factory(