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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [JavaPackage="org.chromium.mojom.payments"]
 module blink.mojom;
 
 // The shipping address that the browser process provides to the renderer
 // process. Built either by the browser or a payment app.
 struct PaymentAddress {
@@ skipping 87 matching lines @@
   // blink::JSONObject::toJSONString() to generate this string. The browser
   // parses the string via JSONObject(JsonSanitizer.sanitize(stringified_data))
   // and passes a part of the JSON object to the payment app, for example
   // Android Pay. There's no one format for this object, so richer types cannot
   // be used. A simple example:
   //
   // {"gateway": "stripe"}
   string stringified_data;
 };
 
+enum PaymentComplete {
+  SUCCESS,
+  FAIL,
+  UNKNOWN
+};
+
 interface PaymentRequest {
   SetClient(PaymentRequestClient client);
   Show(array<PaymentMethodData> methodData,
        PaymentDetails details,
        PaymentOptions options);
   UpdateWith(PaymentDetails details);
   Abort();
-  Complete(bool success);
+  Complete(PaymentComplete result);
 };