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 9a6d8d60f0660841119ea7af663753b3f42fddc7..852c81ec89f322e6132c5abfb861d960ad9e9ac3 100644
--- a/net/base/network_quality_estimator.cc
+++ b/net/base/network_quality_estimator.cc
@@ -945,6 +945,8 @@ 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);
     rtt_observations_.AddObservation(
         RttObservation(rtt, base::TimeTicks::Now(), EXTERNAL_ESTIMATE));
   }
@@ -952,6 +954,8 @@ void NetworkQualityEstimator::QueryExternalEstimateProvider() {
   int32_t downstream_throughput_kbps;
   if (external_estimate_provider_->GetDownstreamThroughputKbps(
           &downstream_throughput_kbps)) {
+    RecordExternalEstimateProviderMetrics(
+        EXTERNAL_ESTIMATE_PROVIDER_STATUS_DOWNLINK_BANDWIDTH_AVAILABLE);
     downstream_throughput_kbps_observations_.AddObservation(
         ThroughputObservation(downstream_throughput_kbps,
                               base::TimeTicks::Now(), EXTERNAL_ESTIMATE));