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

components/autofill/core/browser/autofill_data_util.h

Index: components/autofill/core/browser/autofill_data_util.h
diff --git a/components/autofill/core/browser/autofill_data_util.h b/components/autofill/core/browser/autofill_data_util.h
index 4858f7459c63e3fe52f255292249f1dd89071813..96937fee7f1e17af398aae8f7c6e4c5fdff2c3a0 100644
--- a/components/autofill/core/browser/autofill_data_util.h
+++ b/components/autofill/core/browser/autofill_data_util.h
@@ -7,6 +7,7 @@
 
 #include "base/strings/string16.h"
 #include "components/autofill/core/browser/autofill_profile.h"
+#include "grit/components_scaled_resources.h"
 
 namespace autofill {
 namespace data_util {
@@ -17,6 +18,25 @@ struct NameParts {
   base::string16 family;
 };
 
+// Mapping from Chrome card types to Payment Request API basic card payment spec
+// types and icons. Note that "generic" is not in the spec.
+// https://w3c.github.io/webpayments-methods-card/#method-id
+const struct PaymentRequestData {
+  const char* card_type;
+  const char* basic_card_payment_type;
+  const int icon_resource_id;
+} kPaymentRequestData[]{
+    {"genericCC", "generic", IDR_AUTOFILL_PR_GENERIC},
+
+    {"americanExpressCC", "amex", IDR_AUTOFILL_PR_AMEX},
+    {"dinersCC", "diners", IDR_AUTOFILL_PR_DINERS},
+    {"discoverCC", "discover", IDR_AUTOFILL_PR_DISCOVER},
+    {"jcbCC", "jcb", IDR_AUTOFILL_PR_JCB},
+    {"masterCardCC", "mastercard", IDR_AUTOFILL_PR_MASTERCARD},
+    {"unionPayCC", "unionpay", IDR_AUTOFILL_PR_UNIONPAY},
+    {"visaCC", "visa", IDR_AUTOFILL_PR_VISA},
+};
+
 // Returns true if |name| looks like a CJK name (or some kind of mish-mash of
 // the three, at least).
 bool IsCJKName(const base::string16& name);
@@ -38,6 +58,15 @@ base::string16 JoinNameParts(const base::string16& given,
 bool ProfileMatchesFullName(const base::string16 full_name,
                             const autofill::AutofillProfile& profile);
 
+// Returns the Payment Request API basic card payment spec data for the provided
+// autofill credit card |type|.  Will set the type and the icon to "generic" for
+// any unrecognized type.
+const PaymentRequestData& GetPaymentRequestData(const std::string& type);
+
+// Returns the autofill credit card type string for the provided Payment Request
+// API basic card payment spec |type|.
+const char* GetCardTypeForBasicCardPaymentType(const std::string& type);
+
 }  // namespace data_util
 }  // namespace autofill