Roll IDL to Dartium37 (r181268)

modules/beacon/NavigatorBeacon.idl

Index: modules/beacon/NavigatorBeacon.idl
diff --git a/modules/beacon/NavigatorBeacon.idl b/modules/beacon/NavigatorBeacon.idl
new file mode 100644
index 0000000000000000000000000000000000000000..465c211059398f8f4fe2ef1800dac2286fcded04
--- /dev/null
+++ b/modules/beacon/NavigatorBeacon.idl
@@ -0,0 +1,15 @@
+// Copyright 2014 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://dvcs.w3.org/hg/webperf/raw-file/tip/specs/Beacon/Overview.html#Navigator
+
+[
+    RuntimeEnabled=Beacon,
+] partial interface Navigator {
+    // FIXME: should be union type http://crbug.com/240176
+    [CallWith=ExecutionContext, RaisesException] boolean sendBeacon(DOMString url, ArrayBufferView data);
+    [CallWith=ExecutionContext, RaisesException] boolean sendBeacon(DOMString url, Blob data);
+    [CallWith=ExecutionContext, RaisesException] boolean sendBeacon(DOMString url, FormData data);
+    [CallWith=ExecutionContext, RaisesException] boolean sendBeacon(DOMString url, [Default=Undefined] optional DOMString data);
+};