Updated to Chrome 45 (2454) moved from SVN to git.

core/events/CustomEventInit.idl

Index: core/events/CustomEventInit.idl
diff --git a/core/events/CustomEventInit.idl b/core/events/CustomEventInit.idl
new file mode 100644
index 0000000000000000000000000000000000000000..0c02acd922fcd22ed48dfde37f298ed17d9c958f
--- /dev/null
+++ b/core/events/CustomEventInit.idl
@@ -0,0 +1,9 @@
+// Copyright 2015 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://dom.spec.whatwg.org/#interface-customevent
+
+dictionary CustomEventInit : EventInit {
+    any detail = null;
+};