Add support for method selection in the Payment Request UI on iOS.

components/autofill/core/browser/autofill_data_util.cc

 // Copyright 2016 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/autofill/core/browser/autofill_data_util.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/i18n/char_iterator.h"
@@ skipping 365 matching lines @@
   // LastFirst
   candidate = profile.GetRawInfo(autofill::NAME_LAST) +
               profile.GetRawInfo(autofill::NAME_FIRST);
   if (!full_name.compare(candidate)) {
     return true;
   }
 
   return false;
 }
 
+const PaymentRequestData& GetPaymentRequestData(const std::string& type) {
+  for (size_t i = 0; i < arraysize(kPaymentRequestData); ++i) {
+    if (type == kPaymentRequestData[i].card_type)
+      return kPaymentRequestData[i];
+  }
+  return kPaymentRequestData[0];

[Evan Stade, 2016/08/29 20:34:05]

seems fairly fragile that you're depending on the generic one to be first. I'd
consider separating out the generic case rather than putting it in an array with
the rest, and making L391: return kGenericPaymentRequestData;

[Justin Donnelly, 2016/08/30 15:21:25]

Done.

+}
+
+const char* GetCardTypeForBasicCardPaymentType(
+    const std::string& basic_card_payment_type) {
+  for (size_t i = 0; i < arraysize(kPaymentRequestData); ++i) {
+    if (basic_card_payment_type ==
+        kPaymentRequestData[i].basic_card_payment_type)
+      return kPaymentRequestData[i].card_type;
+  }
+  return kPaymentRequestData[0].card_type;
+}
+
 }  // namespace data_util
 }  // namespace autofill