Store network quality samples so we can compute percentiles.

net/url_request/url_request_unittest.cc

Index: net/url_request/url_request_unittest.cc
diff --git a/net/url_request/url_request_unittest.cc b/net/url_request/url_request_unittest.cc
index fdcf71948df21281f11f61a4258d925c1e036554..0e980d201495567d22e2074b455a918f0a5382cc 100644
--- a/net/url_request/url_request_unittest.cc
+++ b/net/url_request/url_request_unittest.cc
@@ -4103,12 +4103,10 @@ TEST_F(URLRequestTestHTTP, NetworkQualityEstimator) {
   base::RunLoop().Run();
 
   NetworkQuality network_quality =
-      context.network_quality_estimator()->GetEstimate();
-  EXPECT_GE(network_quality.fastest_rtt,
+      context.network_quality_estimator()->GetPeakEstimate();
+  EXPECT_GE(network_quality.rtt(),
             base::TimeDelta::FromMilliseconds(sleep_duration_milliseconds));
-  EXPECT_GT(network_quality.fastest_rtt_confidence, 0);
-  EXPECT_GT(network_quality.peak_throughput_kbps, uint64_t(0));
-  EXPECT_GT(network_quality.peak_throughput_kbps_confidence, 0);
+  EXPECT_GT(network_quality.downstream_throughput_kbps(), 0);
 
   // Verify that histograms are not populated. They should populate only when
   // there is a change in ConnectionType.