Add currencySystem field to PaymentCurrencyAmount

third_party/WebKit/Source/modules/payments/PaymentsValidators.h

Index: third_party/WebKit/Source/modules/payments/PaymentsValidators.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentsValidators.h b/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
index d7285141add312dc7f01d84c5bef63d7f25b5d68..7f33e8d9dc58a6223167825b84a123683789805a 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
@@ -19,6 +19,7 @@ class MODULES_EXPORT PaymentsValidators final {
   // The most common identifiers are three-letter alphabetic codes as defined by [ISO4217] (for example, "USD" for US Dollars)
   // however any string of at most 2048 characters is considered valid. Returns false if currency |code| is too long (greater than 2048).

[please use gerrit instead, 2016/10/12 23:35:50]

Please update the comments to talk about different validation rules for ISO4217
and other systems.

[pals, 2016/10/13 09:30:38]

Done.

   static bool isValidCurrencyCodeFormat(const String& code,
+                                        const String& system,
                                         String* optionalErrorMessage);
 
   // Returns true if |amount| is a valid currency code as defined in ISO 20022 CurrencyAnd30Amount.