NQE: Plumb RTT and throughput estimates to the UI thread

components/offline_pages/core/background/network_quality_provider_stub.cc

Index: components/offline_pages/core/background/network_quality_provider_stub.cc
diff --git a/components/offline_pages/core/background/network_quality_provider_stub.cc b/components/offline_pages/core/background/network_quality_provider_stub.cc
index aaca69530b1884156ba9e271a40b6c9b96132cff..f4243af9ade2a22c4b13580b38b9c0f0f3b44bb4 100644
--- a/components/offline_pages/core/background/network_quality_provider_stub.cc
+++ b/components/offline_pages/core/background/network_quality_provider_stub.cc
@@ -36,6 +36,14 @@ void NetworkQualityProviderStub::AddEffectiveConnectionTypeObserver(
 void NetworkQualityProviderStub::RemoveEffectiveConnectionTypeObserver(
     net::NetworkQualityEstimator::EffectiveConnectionTypeObserver* observer) {}
 
+void NetworkQualityProviderStub::AddRTTAndThroughputEstimatesObserver(
+    net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver* observer) {
+}
+
+void NetworkQualityProviderStub::RemoveRTTAndThroughputEstimatesObserver(
+    net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver* observer) {
+}
+
 net::EffectiveConnectionType
 NetworkQualityProviderStub::GetEffectiveConnectionType() const {
   return connection_type_;