[Autofill] Move country combo box model from chrome to component.

chrome/browser/ui/autofill/country_combobox_model.cc

-// Copyright (c) 2012 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 <algorithm>
-#include <iterator>
-
-#include "base/logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-#include "chrome/browser/browser_process.h"
-#include "components/autofill/core/browser/autofill_country.h"
-#include "components/autofill/core/browser/country_data.h"
-#include "components/autofill/core/browser/personal_data_manager.h"
-#include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_ui.h"
-#include "ui/base/l10n/l10n_util_collator.h"
-#include "ui/base/models/combobox_model_observer.h"
-
-namespace autofill {
-
-CountryComboboxModel::CountryComboboxModel() {}
-
-CountryComboboxModel::~CountryComboboxModel() {}
-
-void CountryComboboxModel::SetCountries(
-    const PersonalDataManager& manager,
-    const base::Callback<bool(const std::string&)>& filter) {
-  countries_.clear();
-
-  // Insert the default country at the top as well as in the ordered list.
-  std::string default_country_code =
-      manager.GetDefaultCountryCodeForNewAddress();
-  DCHECK(!default_country_code.empty());
-
-  const std::string& app_locale = g_browser_process->GetApplicationLocale();
-  if (filter.is_null() || filter.Run(default_country_code)) {
-    countries_.push_back(
-        base::MakeUnique<AutofillCountry>(default_country_code, app_locale));
-#if !defined(OS_ANDROID)
-    // The separator item. On Android, there are separators after all items, so
-    // this is unnecessary.
-    countries_.push_back(nullptr);
-#endif
-  }
-
-  // The sorted list of country codes.
-  const std::vector<std::string>* available_countries =
-      &CountryDataMap::GetInstance()->country_codes();
-
-  // Filter out the countries that do not have rules for address input and
-  // validation.
-  const std::vector<std::string>& addressinput_countries =
-      ::i18n::addressinput::GetRegionCodes();
-  std::vector<std::string> filtered_countries;
-  filtered_countries.reserve(available_countries->size());
-  std::set_intersection(
-      available_countries->begin(), available_countries->end(),
-      addressinput_countries.begin(), addressinput_countries.end(),
-      std::back_inserter(filtered_countries));
-  available_countries = &filtered_countries;
-
-  CountryVector sorted_countries;
-  for (const auto& country_code : *available_countries) {
-    if (filter.is_null() || filter.Run(country_code))
-      sorted_countries.push_back(
-          base::MakeUnique<AutofillCountry>(country_code, app_locale));
-  }
-
-  l10n_util::SortStringsUsingMethod(app_locale,
-                                    &sorted_countries,
-                                    &AutofillCountry::name);
-  std::move(sorted_countries.begin(), sorted_countries.end(),
-            std::back_inserter(countries_));
-}
-
-int CountryComboboxModel::GetItemCount() const {
-  return countries_.size();
-}
-
-base::string16 CountryComboboxModel::GetItemAt(int index) {
-  AutofillCountry* country = countries_[index].get();
-  if (country)
-    return countries_[index]->name();
-
-  // The separator item. Implemented for platforms that don't yet support
-  // IsItemSeparatorAt().
-  return base::ASCIIToUTF16("---");
-}
-
-bool CountryComboboxModel::IsItemSeparatorAt(int index) {
-  return !countries_[index].get();
-}
-
-std::string CountryComboboxModel::GetDefaultCountryCode() const {
-  return countries_[GetDefaultIndex()]->country_code();
-}
-
-}  // namespace autofill