PaymentRequest: complete() method should take PaymentComplete enum value.

third_party/WebKit/public/platform/modules/payments/payment_request.mojom

Index: third_party/WebKit/public/platform/modules/payments/payment_request.mojom
diff --git a/third_party/WebKit/public/platform/modules/payments/payment_request.mojom b/third_party/WebKit/public/platform/modules/payments/payment_request.mojom
index 1cbced4beb598794ccd26bf4e17c10047bcff868..5bba88dfe5a4849aae268ac1f698e0106b2bb22e 100644
--- a/third_party/WebKit/public/platform/modules/payments/payment_request.mojom
+++ b/third_party/WebKit/public/platform/modules/payments/payment_request.mojom
@@ -105,6 +105,12 @@ struct PaymentMethodData {
   string stringified_data;
 };
 
+enum PaymentComplete {
+  SUCCESS,
+  FAIL,
+  UNKNOWN
+};
+
 interface PaymentRequest {
   SetClient(PaymentRequestClient client);
   Show(array<PaymentMethodData> methodData,
@@ -112,5 +118,5 @@ interface PaymentRequest {
        PaymentOptions options);
   UpdateWith(PaymentDetails details);
   Abort();
-  Complete(bool success);
+  Complete(PaymentComplete result);
 };