Expose RTT and throughput estimates from Cronet

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 ffe6089a2ec9ba859339a059dc1872bd46ca25d7..7c1385058a30caab90dd0a35fff31b5cab3639f8 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.cc
+++ b/components/cronet/android/cronet_url_request_context_adapter.cc
@@ -427,6 +427,7 @@ CronetURLRequestContextAdapter::~CronetURLRequestContextAdapter() {
     network_quality_estimator_->RemoveRTTObserver(this);
     network_quality_estimator_->RemoveThroughputObserver(this);
     network_quality_estimator_->RemoveEffectiveConnectionTypeObserver(this);
+    network_quality_estimator_->RemoveRTTAndThroughputEstimatesObserver(this);
   }
 
   // Stop NetLog observer if there is one.
@@ -626,6 +627,7 @@ void CronetURLRequestContextAdapter::InitializeOnNetworkThread(
     context_builder.set_socket_performance_watcher_factory(
         network_quality_estimator_->GetSocketPerformanceWatcherFactory());
     network_quality_estimator_->AddEffectiveConnectionTypeObserver(this);
+    network_quality_estimator_->AddRTTAndThroughputEstimatesObserver(this);
   }
 
   context_ = context_builder.Build();
@@ -871,6 +873,18 @@ void CronetURLRequestContextAdapter::OnEffectiveConnectionTypeChanged(
       effective_connection_type);
 }
 
+void CronetURLRequestContextAdapter::OnRTTOrThroughputEstimatesComputed(
+    base::TimeDelta http_rtt,
+    base::TimeDelta transport_rtt,
+    int32_t downstream_throughput_kbps) {
+  DCHECK(GetNetworkTaskRunner()->BelongsToCurrentThread());
+
+  Java_CronetUrlRequestContext_onRTTOrThroughputEstimatesComputed(
+      base::android::AttachCurrentThread(), jcronet_url_request_context_.obj(),
+      http_rtt.InMilliseconds(), transport_rtt.InMilliseconds(),
+      downstream_throughput_kbps);
+}
+
 void CronetURLRequestContextAdapter::OnRTTObservation(
     int32_t rtt_ms,
     const base::TimeTicks& timestamp,