Exposing NQE on the Browser UI thread

chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc

Index: chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc
diff --git a/chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc b/chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cc142f9d1c876ee68584de3fc76dd6941797fd88
--- /dev/null
+++ b/chrome/browser/net/nqe/ui_network_quality_estimator_service_browsertest.cc
@@ -0,0 +1,40 @@
+// 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 "chrome/browser/net/nqe/ui_network_quality_estimator_service.h"
+#include "chrome/browser/net/nqe/ui_network_quality_estimator_service_factory.h"
+#include "chrome/browser/net/nqe/ui_network_quality_estimator_service_test_util.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "content/public/test/browser_test.h"
+#include "net/nqe/network_quality_estimator.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class Profile;
+
+namespace {
+
+using UINetworkQualityEstimatorServiceBrowserTest = InProcessBrowserTest;
+
+}  // namespace
+
+IN_PROC_BROWSER_TEST_F(UINetworkQualityEstimatorServiceBrowserTest,
+                       VerifyNQEState) {
+  // Verifies that NQE notifying EffectiveConnectionTypeObservers causes the
+  // UINetworkQualityEstimatorService to receive an updated
+  // EffectiveConnectionType.
+  Profile* profile = ProfileManager::GetActiveUserProfile();
+  UINetworkQualityEstimatorService* nqe_service =
+      UINetworkQualityEstimatorServiceFactory::GetForProfile(profile);
+
+  nqe_test_util::OverrideEffectiveConnectionTypeAndWait(
+      net::NetworkQualityEstimator::EFFECTIVE_CONNECTION_TYPE_OFFLINE);
+  EXPECT_EQ(net::NetworkQualityEstimator::EFFECTIVE_CONNECTION_TYPE_OFFLINE,
+            nqe_service->GetEffectiveConnectionType());
+
+  nqe_test_util::OverrideEffectiveConnectionTypeAndWait(
+      net::NetworkQualityEstimator::EFFECTIVE_CONNECTION_TYPE_SLOW_2G);
+  EXPECT_EQ(net::NetworkQualityEstimator::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
+            nqe_service->GetEffectiveConnectionType());
+}