Add currencySystem field to PaymentCurrencyAmount

third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp

Index: third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp b/third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp
index 06d31586667bd907e6a671fe9e07bc8dd57e4353..b74b548acb68f523ee0b52c5a7336c55022679ae 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentTestHelper.cpp
@@ -28,6 +28,10 @@ void setValues(PaymentItemOrPaymentShippingOption& original,
   } else {
     itemAmount.setCurrency("USD");
   }
+
+  if (data == PaymentTestDataCurrencySystem)
+    itemAmount.setCurrencySystem("http://www.example.com");

[please use gerrit instead, 2016/10/13 17:37:54]

// Currency system is "urn:iso:std:iso:4217" by default.
if (data == PaymentTestDataCurrencySystem) {
  if (modificationType == PaymentTestOverwriteValue)
    itemAmount.setCurrency(valueToUse);
  else
    itemAmount.setCurrency(String());  // null string.
}

[pals, 2016/10/14 14:41:21]

Done.

+
   if (data == PaymentTestDataValue) {
     if (modificationType == PaymentTestOverwriteValue)
       itemAmount.setValue(valueToUse);