Record UMA only when network quality is eligible for caching

net/nqe/network_quality_estimator.cc

Index: net/nqe/network_quality_estimator.cc
diff --git a/net/nqe/network_quality_estimator.cc b/net/nqe/network_quality_estimator.cc
index b8861b30e0d7c1c364d499c9e5279a0b17b6915e..7ad32cb580cd713b2a76c88abdc59e786d42f68f 100644
--- a/net/nqe/network_quality_estimator.cc
+++ b/net/nqe/network_quality_estimator.cc
@@ -1469,8 +1469,10 @@ bool NetworkQualityEstimator::ReadCachedNetworkQualityEstimate() {
 
   const bool cached_estimate_available = network_quality_store_->GetById(
       current_network_id_, &cached_network_quality);
-  UMA_HISTOGRAM_BOOLEAN("NQE.CachedNetworkQualityAvailable",
-                        cached_estimate_available);
+  if (network_quality_store_->EligibleForCaching(current_network_id_)) {
+    UMA_HISTOGRAM_BOOLEAN("NQE.CachedNetworkQualityAvailable",
+                          cached_estimate_available);
+  }
 
   if (!cached_estimate_available)
     return false;