diff -r 000000000000 -r 6474c204b198 dom/events/BeforeUnloadEvent.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/events/BeforeUnloadEvent.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,47 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_BeforeUnloadEvent_h_
+#define mozilla_dom_BeforeUnloadEvent_h_
+
+#include "mozilla/dom/BeforeUnloadEventBinding.h"
+#include "mozilla/dom/Event.h"
+#include "nsIDOMBeforeUnloadEvent.h"
+
+namespace mozilla {
+namespace dom {
+
+class BeforeUnloadEvent : public Event,
+                          public nsIDOMBeforeUnloadEvent
+{
+public:
+  BeforeUnloadEvent(EventTarget* aOwner,
+                    nsPresContext* aPresContext,
+                    WidgetEvent* aEvent)
+    : Event(aOwner, aPresContext, aEvent)
+  {
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
+  {
+    return BeforeUnloadEventBinding::Wrap(aCx, this);
+  }
+
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // Forward to Event
+  NS_FORWARD_TO_EVENT
+
+  // nsIDOMBeforeUnloadEvent Interface
+  NS_DECL_NSIDOMBEFOREUNLOADEVENT
+
+protected:
+  nsString mText;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_BeforeUnloadEvent_h_