PaymentApp: Add interfaces for PaymentRequestEvent.

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequestEvent.idl
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.idl b/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.idl
new file mode 100644
index 0000000000000000000000000000000000000000..f19b2c62d87c30c19d3e62939465054cabd6ce1c
--- /dev/null
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.idl
@@ -0,0 +1,13 @@
+// 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.
+
+// https://w3c.github.io/webpayments-payment-apps-api/#idl-def-paymentrequestevent
+
+[
+    RuntimeEnabled=PaymentApp,
+    Exposed=ServiceWorker
+] interface PaymentRequestEvent : ExtendableEvent {
+    readonly attribute PaymentAppRequestData data;
+    void respondWith(Promise<PaymentResponse> r);

[haraken, 2016/11/21 00:15:55]

Nit: I want to rename |r| to a more descriptive name in the spec though.

[zino, 2016/11/21 09:31:05]

Done.

+};