Record how frequently EEP provides valid estimates

net/base/network_quality_estimator.cc

Index: net/base/network_quality_estimator.cc
diff --git a/net/base/network_quality_estimator.cc b/net/base/network_quality_estimator.cc
index 2233333bcc3c8df4e913d687ec50c9d4996e84e5..7086da8d3198151facd6e82fb2a5b9ead05b7b2b 100644
--- a/net/base/network_quality_estimator.cc
+++ b/net/base/network_quality_estimator.cc
@@ -1089,6 +1089,9 @@ void NetworkQualityEstimator::QueryExternalEstimateProvider() {
       EXTERNAL_ESTIMATE_PROVIDER_STATUS_QUERY_SUCCESSFUL);
   base::TimeDelta rtt;
   if (external_estimate_provider_->GetRTT(&rtt)) {
+    RecordExternalEstimateProviderMetrics(
+        EXTERNAL_ESTIMATE_PROVIDER_STATUS_RTT_AVAILABLE);
+    UMA_HISTOGRAM_TIMES("NQE.ExternalEstimateProvider.RTT", rtt);
     rtt_observations_.AddObservation(
         RttObservation(rtt, base::TimeTicks::Now(), EXTERNAL_ESTIMATE));
   }
@@ -1096,6 +1099,10 @@ void NetworkQualityEstimator::QueryExternalEstimateProvider() {
   int32_t downstream_throughput_kbps;
   if (external_estimate_provider_->GetDownstreamThroughputKbps(
           &downstream_throughput_kbps)) {
+    RecordExternalEstimateProviderMetrics(
+        EXTERNAL_ESTIMATE_PROVIDER_STATUS_DOWNLINK_BANDWIDTH_AVAILABLE);
+    UMA_HISTOGRAM_COUNTS("NQE.ExternalEstimateProvider.DownlinkBandwidth",
+                         downstream_throughput_kbps);
     downstream_throughput_kbps_observations_.AddObservation(
         ThroughputObservation(downstream_throughput_kbps,
                               base::TimeTicks::Now(), EXTERNAL_ESTIMATE));