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 c21a38a2853051e148b46c91cd6b9e9fc0367516..0f07092c69b35c8d7ce7efac3d8f0ec7b9d9d707 100644
--- a/third_party/WebKit/public/platform/modules/payments/payment_request.mojom
+++ b/third_party/WebKit/public/platform/modules/payments/payment_request.mojom
@@ -109,6 +109,12 @@ struct PaymentMethodData {
   string stringified_data;
 };
 
+enum PaymentComplete {
+  SUCCESS,
+  FAIL,
+  UNKNOWN
+};
+
 interface PaymentRequest {
   SetClient(PaymentRequestClient client);
   Show(array<PaymentMethodData> methodData,
@@ -116,5 +122,5 @@ interface PaymentRequest {
        PaymentOptions options);
   UpdateWith(PaymentDetails details);
   Abort();
-  Complete(bool success);
+  Complete(PaymentComplete result);
 };