[WebPayments] Show labels on incomplete profiles

components/payments/core/payment_request_data_util.h

 // 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.
 
 #ifndef COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DATA_UTIL_H_
 #define COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DATA_UTIL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 48 matching lines @@
                                   const std::string& country_code);
 
 // Formats the given number |phone_number| to
 // i18n::phonenumbers::PhoneNumberUtil::PhoneNumberFormat::E164 format by using
 // i18n::phonenumbers::PhoneNumberUtil::Format, as defined in the Payment
 // Request spec
 // (https://w3c.github.io/browser-payment-api/#paymentrequest-updated-algorithm)
 std::string FormatPhoneForResponse(const std::string& phone_number,
                                    const std::string& country_code);
 
+// Returns a country code to be used when validating this profile. If the
+// profile has a valid country code set, it is returned. If not, a country code
+// associated with |app_locale| is used as a fallback.
+std::string GetCountryCodeWithFallback(const autofill::AutofillProfile* profile,
+                                       const std::string& app_locale);
+
 }  // namespace data_util
 }  // namespace payments
 
 #endif  // COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DATA_UTIL_H_