Add country combobox to change country and rebuild address inputs.

chrome/browser/ui/autofill/country_combobox_model_unittest.cc

+// Copyright 2014 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/ui/autofill/country_combobox_model.h"
+
+#include "components/autofill/core/browser/autofill_country.h"
+#include "components/autofill/core/browser/test_personal_data_manager.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gmock_mutant.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/models/combobox_model_observer.h"
+
+namespace autofill {
+
+namespace {
+
+const char kTestCountry[] = "AQ";
+
+class MockObserver : public ui::ComboboxModelObserver {
+ public:
+  MOCK_METHOD1(OnComboboxModelChanged, void(ui::ComboboxModel* model));
+};
+
+}  // namespace
+
+TEST(CountryComboboxModel, SetAndResetDefaultCountry) {
+  TestPersonalDataManager manager;
+  CountryComboboxModel model(manager);
+
+  MockObserver observer;
+  model.AddObserver(&observer);
+  EXPECT_CALL(observer, OnComboboxModelChanged(&model)).Times(2);
+
+  std::string default_country = model.GetDefaultCountryCode();
+  ASSERT_NE(default_country, kTestCountry);
+
+  model.SetDefaultCountry(kTestCountry);
+  EXPECT_EQ(kTestCountry, model.GetDefaultCountryCode());
+
+  model.ResetDefault();
+  EXPECT_EQ(default_country, model.GetDefaultCountryCode());
+}
+
+TEST(CountryComboboxModel, RespectsManagerDefaultCountry) {
+  TestPersonalDataManager manager;
+  manager.set_timezone_country_code(kTestCountry);
+
+  CountryComboboxModel model(manager);
+  EXPECT_EQ(kTestCountry, model.GetDefaultCountryCode());
+}
+
+}  // namespace autofill