Add Network Quality Estimator (NQE) pref manager

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 359b437ebfcf8521d6b2b9f947834418337650eb..7b79237c213376870350ca6dfd6e997ca5b519dd 100644
--- a/net/nqe/network_quality_estimator.cc
+++ b/net/nqe/network_quality_estimator.cc
@@ -1363,12 +1363,6 @@ NetworkQualityEstimator::GetRecentEffectiveConnectionTypeUsingMetrics(
                                               1);
 }
 
-nqe::internal::NetworkQualityStore*
-NetworkQualityEstimator::NetworkQualityStoreForTesting() const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return network_quality_store_.get();
-}
-
 void NetworkQualityEstimator::AddEffectiveConnectionTypeObserver(
     EffectiveConnectionTypeObserver* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ -1717,4 +1711,18 @@ void NetworkQualityEstimator::
   }
 }
 
+void NetworkQualityEstimator::AddNetworkQualitiesCacheObserver(
+    nqe::internal::NetworkQualityStore::NetworkQualitiesCacheObserver*
+        observer) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  network_quality_store_->AddNetworkQualitiesCacheObserver(observer);
+}
+
+void NetworkQualityEstimator::RemoveNetworkQualitiesCacheObserver(
+    nqe::internal::NetworkQualityStore::NetworkQualitiesCacheObserver*
+        observer) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  network_quality_store_->RemoveNetworkQualitiesCacheObserver(observer);
+}
+
 }  // namespace net