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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_REGIONAL_CAPABILITIES_REGIONAL_CAPABILITIES_UTILS_H_
#define COMPONENTS_REGIONAL_CAPABILITIES_REGIONAL_CAPABILITIES_UTILS_H_
#include <optional>
#include <variant>
#include <vector>
class PrefService;
namespace country_codes {
class CountryId;
}
namespace TemplateURLPrepopulateData {
struct PrepopulatedEngine;
}
namespace regional_capabilities {
// Returns whether `country_id` refers to a country member of the European
// Economic Area.
// See `//components/country_codes` for the Country ID format.
bool IsEeaCountry(country_codes::CountryId country_id);
// The state of the search engine choice country command line override.
// See `switches::kSearchEngineChoiceCountry`.
enum class SearchEngineCountryListOverride {
// Display all the search engines used in the EEA region.
kEeaAll,
// Display the search engines that we default to when the country is unknown.
kEeaDefault,
};
using SearchEngineCountryOverride =
std::variant<country_codes::CountryId, SearchEngineCountryListOverride>;
// Gets the search engine country command line override.
// Returns an int if the country id is passed to the command line or a
// `SearchEngineCountryListOverride` if the special values of
// `kDefaultListCountryOverride` or `kEeaListCountryOverride` are passed.
std::optional<SearchEngineCountryOverride> GetSearchEngineCountryOverride();
// Returns whether the search engine list is overridden in the command line to
// return the default list or the list of all eea engines.
bool HasSearchEngineCountryListOverride();
// Returns the prepopulated engines for the given country.
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
GetPrepopulatedEngines(country_codes::CountryId country_id, PrefService& prefs);
// Returns all the prepopulated engines that are used in the EEA region.
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
GetAllEeaRegionPrepopulatedEngines();
// Returns the set of search engines that is used when the country is unknown.
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
GetDefaultPrepopulatedEngines();
} // namespace regional_capabilities
#endif // COMPONENTS_REGIONAL_CAPABILITIES_REGIONAL_CAPABILITIES_UTILS_H_
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