NQE: Record how frequently NetworkID is available

net/nqe/network_quality_estimator.h

Index: net/nqe/network_quality_estimator.h
diff --git a/net/nqe/network_quality_estimator.h b/net/nqe/network_quality_estimator.h
index afeca4eb01e1220879cb01bf87a644ebe06a9775..13bd9d161398d6fedde4e306ca07effdaea17420 100644
--- a/net/nqe/network_quality_estimator.h
+++ b/net/nqe/network_quality_estimator.h
@@ -428,6 +428,10 @@ class NET_EXPORT_PRIVATE NetworkQualityEstimator
   // Records UMA when there is a change in connection type.
   void RecordMetricsOnConnectionTypeChanged() const;
 
+  // Records UMA on whether the NetworkID was available or not. Called right
+  // after a network change event.
+  void RecordNetworkIDAvailability() const;
+
   // Records UMA on main frame requests.
   void RecordMetricsOnMainFrameRequest() const;