[Payment Request] Displays appropriate footer if first transaction completed

components/payments/core/payments_test_util.cc

+// Copyright 2017 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 "components/payments/core/payments_test_util.h"
+
+#include "base/memory/ref_counted.h"
+#include "components/autofill/core/browser/autofill_test_utils.h"
+#include "components/payments/core/payment_prefs.h"
+#include "components/pref_registry/pref_registry_syncable.h"
+#include "components/prefs/pref_service.h"
+
+namespace payments {
+namespace test {
+
+std::unique_ptr<PrefService> PrefServiceForTesting() {
+  scoped_refptr<user_prefs::PrefRegistrySyncable> registry(
+      new user_prefs::PrefRegistrySyncable());
+  ::payments::RegisterProfilePrefs(registry.get());
+  return ::autofill::test::PrefServiceForTesting(registry.get());
+}
+
+}  // namespace test
+}  // namespace payments