diff -r 000000000000 -r 6474c204b198 dom/cellbroadcast/src/CellBroadcast.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/cellbroadcast/src/CellBroadcast.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+/* -*- 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_CellBroadcast_h__
+#define mozilla_dom_CellBroadcast_h__
+
+#include "mozilla/Attributes.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/ErrorResult.h"
+#include "nsICellBroadcastProvider.h"
+#include "js/TypeDecls.h"
+
+class nsPIDOMWindow;
+
+namespace mozilla {
+namespace dom {
+
+class CellBroadcast MOZ_FINAL : public DOMEventTargetHelper
+{
+  /**
+   * Class CellBroadcast doesn't actually inherit nsICellBroadcastListener.
+   * Instead, it owns an nsICellBroadcastListener derived instance mListener
+   * and passes it to nsICellBroadcastProvider. The onreceived events are first
+   * delivered to mListener and then forwarded to its owner, CellBroadcast. See
+   * also bug 775997 comment #51.
+   */
+  class Listener;
+
+public:
+  NS_DECL_NSICELLBROADCASTLISTENER
+
+  NS_REALLY_FORWARD_NSIDOMEVENTTARGET(DOMEventTargetHelper)
+
+  static already_AddRefed<CellBroadcast>
+  Create(nsPIDOMWindow* aOwner, ErrorResult& aRv);
+
+  CellBroadcast() MOZ_DELETE;
+  CellBroadcast(nsPIDOMWindow *aWindow,
+                nsICellBroadcastProvider* aProvider);
+  // MOZ_FINAL suppresses -Werror,-Wdelete-non-virtual-dtor
+  ~CellBroadcast();
+
+  nsPIDOMWindow*
+  GetParentObject() const { return GetOwner(); }
+
+  virtual JSObject*
+  WrapObject(JSContext* aCx) MOZ_OVERRIDE;
+
+  IMPL_EVENT_HANDLER(received)
+
+private:
+  nsCOMPtr<nsICellBroadcastProvider> mProvider;
+  nsRefPtr<Listener> mListener;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif /* mozilla_dom_CellBroadcast_h__ */