[Payments] Implement payment instrument icons

third_party/WebKit/Source/modules/payments/PaymentInstrument.idl

Index: third_party/WebKit/Source/modules/payments/PaymentInstrument.idl
diff --git a/third_party/WebKit/Source/modules/payments/PaymentInstrument.idl b/third_party/WebKit/Source/modules/payments/PaymentInstrument.idl
index 9f57261ff7a7bae09ae34d8456906aee523925fd..a4f343fb2ce252ca0dfcafbfcd01c6caa803b71f 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentInstrument.idl
+++ b/third_party/WebKit/Source/modules/payments/PaymentInstrument.idl
@@ -6,11 +6,7 @@
 
 dictionary PaymentInstrument {
     required DOMString name;
-    // TODO(zino): PaymentInstrument should have icons attribute.
-    // The spec[1] defines it as a sequence of ImageObject but its definition
-    // is not clear yet.
-    // Please see: https://github.com/w3c/webpayments-payment-apps-api/issues/69
-    // sequence<ImageObject> icons;
+    sequence<ImageObject> icons;
     sequence<DOMString> enabledMethods;
     object capabilities;
 };