diff -r 000000000000 -r 6474c204b198 js/src/gc/Rooting.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/gc/Rooting.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+/* -*- 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 gc_Rooting_h
+#define gc_Rooting_h
+
+#include "js/RootingAPI.h"
+
+class JSAtom;
+
+namespace js {
+
+class PropertyName;
+class Shape;
+
+namespace types { struct TypeObject; }
+
+// These are internal counterparts to the public types such as HandleObject.
+
+typedef JS::Handle<Shape*>             HandleShape;
+typedef JS::Handle<types::TypeObject*> HandleTypeObject;
+typedef JS::Handle<JSAtom*>            HandleAtom;
+typedef JS::Handle<PropertyName*>      HandlePropertyName;
+typedef JS::Handle<js::ScriptSourceObject*> HandleScriptSource;
+
+typedef JS::MutableHandle<Shape*>      MutableHandleShape;
+typedef JS::MutableHandle<JSAtom*>     MutableHandleAtom;
+
+typedef JS::Rooted<Shape*>             RootedShape;
+typedef JS::Rooted<types::TypeObject*> RootedTypeObject;
+typedef JS::Rooted<JSAtom*>            RootedAtom;
+typedef JS::Rooted<PropertyName*>      RootedPropertyName;
+typedef JS::Rooted<js::ScriptSourceObject*> RootedScriptSource;
+
+} /* namespace js */
+
+#endif /* gc_Rooting_h */