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

components/autofill/core/browser/autofill_data_util.cc

Index: components/autofill/core/browser/autofill_data_util.cc
diff --git a/components/autofill/core/browser/autofill_data_util.cc b/components/autofill/core/browser/autofill_data_util.cc
index 955a6c20f8d2970e212d61ae6febe04dd7643ddf..2b45d9d29886a230ad3e138f911b77659e915537 100644
--- a/components/autofill/core/browser/autofill_data_util.cc
+++ b/components/autofill/core/browser/autofill_data_util.cc
@@ -383,5 +383,23 @@ bool ProfileMatchesFullName(const base::string16 full_name,
   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