Expose getters methods for NQE on UI thread

chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <map>
 #include <string>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/metrics/field_trial.h"
@@ skipping 239 matching lines @@
   UINetworkQualityEstimatorService* nqe_service =
       UINetworkQualityEstimatorServiceFactory::GetForProfile(profile);
   TestRTTAndThroughputEstimatesObserver nqe_observer;
   nqe_service->AddRTTAndThroughputEstimatesObserver(&nqe_observer);
 
   base::TimeDelta rtt_1 = base::TimeDelta::FromMilliseconds(100);
 
   nqe_test_util::OverrideRTTsAndWait(rtt_1);
   EXPECT_EQ(rtt_1, nqe_observer.http_rtt());
 
+  EXPECT_EQ(rtt_1, nqe_service->GetHttpRTT());
+  EXPECT_EQ(rtt_1, nqe_service->GetTransportRTT());
+  EXPECT_FALSE(nqe_service->GetDownstreamThroughputKbps().has_value());
+
   base::TimeDelta rtt_2 = base::TimeDelta::FromMilliseconds(200);
 
   nqe_test_util::OverrideRTTsAndWait(rtt_2);
   EXPECT_EQ(rtt_2, nqe_observer.http_rtt());
 
+  EXPECT_EQ(rtt_2, nqe_service->GetHttpRTT());
+  EXPECT_EQ(rtt_2, nqe_service->GetTransportRTT());
+  EXPECT_FALSE(nqe_service->GetDownstreamThroughputKbps().has_value());
+
   nqe_service->RemoveRTTAndThroughputEstimatesObserver(&nqe_observer);
 
   base::TimeDelta rtt_3 = base::TimeDelta::FromMilliseconds(300);
 
   nqe_test_util::OverrideRTTsAndWait(rtt_3);
   EXPECT_EQ(rtt_2, nqe_observer.http_rtt());
 
+  EXPECT_EQ(rtt_3, nqe_service->GetHttpRTT());
+  EXPECT_EQ(rtt_3, nqe_service->GetTransportRTT());
+  EXPECT_FALSE(nqe_service->GetDownstreamThroughputKbps().has_value());
+
   // Observer should be notified on addition.
   TestRTTAndThroughputEstimatesObserver nqe_observer_2;
   nqe_service->AddRTTAndThroughputEstimatesObserver(&nqe_observer_2);
   EXPECT_GT(0, nqe_observer_2.http_rtt().InMilliseconds());
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(rtt_3, nqe_observer_2.http_rtt());
 
   // |nqe_observer_3| should be not notified since it unregisters before the
   // message loop is run.
   TestRTTAndThroughputEstimatesObserver nqe_observer_3;
   nqe_service->AddRTTAndThroughputEstimatesObserver(&nqe_observer_3);
   EXPECT_GT(0, nqe_observer_3.http_rtt().InMilliseconds());
   nqe_service->RemoveRTTAndThroughputEstimatesObserver(&nqe_observer_3);
   base::RunLoop().RunUntilIdle();
   EXPECT_GT(0, nqe_observer_3.http_rtt().InMilliseconds());
 }
 
 // Verify that prefs are writen and read correctly.
 IN_PROC_BROWSER_TEST_F(UINetworkQualityEstimatorServiceBrowserTest,
                        WritingReadingToPrefsEnabled) {
   VerifyWritingReadingPrefs();
 }