[Payment Request] Displays accepted card types (credit, debit, etc) in iOS

components/payments/core/payment_request_data_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/payment_request_data_util.h"
 
+#include "base/stl_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/core/browser/autofill_country.h"
 #include "components/autofill/core/browser/autofill_data_util.h"
 #include "components/autofill/core/browser/autofill_profile.h"
-#include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/field_types.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
 #include "components/autofill/core/browser/validation.h"
 #include "components/payments/core/basic_card_response.h"
 #include "components/payments/core/payment_address.h"
 #include "components/payments/core/payment_method_data.h"
 #include "third_party/libphonenumber/phonenumber_api.h"
 
 namespace payments {
 namespace data_util {
@@ skipping 122 matching lines @@
                 kBasicCardNetworks.end()) {
               out_basic_card_specified_networks->insert(supported_network);
             }
           }
         }
       }
     }
   }
 }
 
+void ParseSupportedCardTypes(
+    const std::vector<PaymentMethodData>& method_data,
+    std::set<autofill::CreditCard::CardType>* out_supported_card_types_set) {
+  DCHECK(out_supported_card_types_set->empty());
+
+  for (const PaymentMethodData& method_data_entry : method_data) {
+    // Ignore |supported_types| if |supported_methods| does not contain
+    // "basic_card".
+    if (!base::ContainsValue(method_data_entry.supported_methods, "basic-card"))
+      continue;
+
+    for (const autofill::CreditCard::CardType& card_type :
+         method_data_entry.supported_types) {
+      out_supported_card_types_set->insert(card_type);
+    }
+  }
+
+  // Omitting the card types means all 3 card types are supported.
+  if (out_supported_card_types_set->empty()) {
+    out_supported_card_types_set->insert(
+        autofill::CreditCard::CARD_TYPE_CREDIT);
+    out_supported_card_types_set->insert(autofill::CreditCard::CARD_TYPE_DEBIT);
+    out_supported_card_types_set->insert(
+        autofill::CreditCard::CARD_TYPE_PREPAID);
+  }
+
+  // Let the user decide whether an unknown card type should be used.
+  out_supported_card_types_set->insert(autofill::CreditCard::CARD_TYPE_UNKNOWN);
+}
+
 base::string16 GetFormattedPhoneNumberForDisplay(
     const autofill::AutofillProfile& profile,
     const std::string& locale) {
   // Since the "+" is removed for some country's phone numbers, try to add a "+"
   // and see if it is a valid phone number for a country.
   // Having two "+" in front of a number has no effect on the formatted number.
   // The reason for this is international phone numbers for another country. For
   // example, without adding a "+", the US number 1-415-123-1234 for an AU
   // address would be wrongly formatted as +61 1-415-123-1234 which is invalid.
   std::string phone = base::UTF16ToUTF8(profile.GetInfo(
@@ skipping 49 matching lines @@
                                        const std::string& app_locale) {
   std::string country_code =
       base::UTF16ToUTF8(profile->GetRawInfo(autofill::ADDRESS_HOME_COUNTRY));
   if (!autofill::data_util::IsValidCountryCode(country_code))
     country_code = autofill::AutofillCountry::CountryCodeForLocale(app_locale);
   return country_code;
 }
 
 }  // namespace data_util
 }  // namespace payments