NQE: Use ResponseHeaders to get the HTTP status code

net/nqe/network_quality_estimator_test_util.h

Index: net/nqe/network_quality_estimator_test_util.h
diff --git a/net/nqe/network_quality_estimator_test_util.h b/net/nqe/network_quality_estimator_test_util.h
index fb268f2394e582d52727ce18493ded27be38799c..b1581fbebe912b254c1e349f4a8c156963a7dd06 100644
--- a/net/nqe/network_quality_estimator_test_util.h
+++ b/net/nqe/network_quality_estimator_test_util.h
@@ -64,6 +64,10 @@ class TestNetworkQualityEstimator : public NetworkQualityEstimator {
   // Returns a GURL hosted at the embedded test server.
   const GURL GetEchoURL() const;
 
+  // Returns a GURL hosted at the embedded test server which contains redirect
+  // to another HTTPS URL.
+  const GURL GetRedirectURL() const;
+
   void set_effective_connection_type(EffectiveConnectionType type) {
     // Callers should not set effective connection type along with the
     // lower-layer metrics.