diff -r 000000000000 -r 6474c204b198 js/xpconnect/wrappers/FilteringWrapper.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/xpconnect/wrappers/FilteringWrapper.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=99: */
+/* 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 __FilteringWrapper_h__
+#define __FilteringWrapper_h__
+
+#include "mozilla/Attributes.h"
+#include "jswrapper.h"
+#include "js/CallNonGenericMethod.h"
+
+struct JSPropertyDescriptor;
+
+namespace JS {
+class AutoIdVector;
+}
+
+namespace xpc {
+
+template <typename Base, typename Policy>
+class FilteringWrapper : public Base {
+  public:
+    FilteringWrapper(unsigned flags);
+    virtual ~FilteringWrapper();
+
+    virtual bool getPropertyDescriptor(JSContext *cx, JS::Handle<JSObject*> wrapper,
+                                       JS::Handle<jsid> id,
+                                       JS::MutableHandle<JSPropertyDescriptor> desc) MOZ_OVERRIDE;
+    virtual bool getOwnPropertyDescriptor(JSContext *cx, JS::Handle<JSObject*> wrapper,
+                                          JS::Handle<jsid> id,
+                                          JS::MutableHandle<JSPropertyDescriptor> desc) MOZ_OVERRIDE;
+    virtual bool getOwnPropertyNames(JSContext *cx, JS::Handle<JSObject*> wrapper,
+                                     JS::AutoIdVector &props) MOZ_OVERRIDE;
+    virtual bool enumerate(JSContext *cx, JS::Handle<JSObject*> wrapper,
+                           JS::AutoIdVector &props) MOZ_OVERRIDE;
+    virtual bool keys(JSContext *cx, JS::Handle<JSObject*> wrapper,
+                      JS::AutoIdVector &props) MOZ_OVERRIDE;
+    virtual bool iterate(JSContext *cx, JS::Handle<JSObject*> wrapper, unsigned flags,
+                         JS::MutableHandle<JS::Value> vp) MOZ_OVERRIDE;
+    virtual bool nativeCall(JSContext *cx, JS::IsAcceptableThis test, JS::NativeImpl impl,
+                            JS::CallArgs args) MOZ_OVERRIDE;
+
+    virtual bool defaultValue(JSContext *cx, JS::Handle<JSObject*> obj, JSType hint, JS::MutableHandleValue vp) MOZ_OVERRIDE;
+
+    virtual bool enter(JSContext *cx, JS::Handle<JSObject*> wrapper, JS::Handle<jsid> id,
+                       js::Wrapper::Action act, bool *bp) MOZ_OVERRIDE;
+
+    static FilteringWrapper singleton;
+};
+
+}
+
+#endif /* __FilteringWrapper_h__ */