From bc4e7c1e12e629aaf1be828ae80c44ba944cb161 Mon Sep 17 00:00:00 2001
From: Boris Zbarsky <bzbarsky@mit.edu>
Date: Fri, 8 Jun 2012 17:42:51 -0400
Subject: [PATCH] Bug 761707 followup.  Restore an assert that should not have
 gone away.  r=ms2ger

---
 dom/bindings/BindingUtils.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dom/bindings/BindingUtils.h b/dom/bindings/BindingUtils.h
index 7a36e5fa096..122e49eed18 100644
--- a/dom/bindings/BindingUtils.h
+++ b/dom/bindings/BindingUtils.h
@@ -70,6 +70,8 @@ template <class T>
 inline T*
 UnwrapDOMObject(JSObject* obj)
 {
+  MOZ_ASSERT(IsDOMClass(JS_GetClass(obj)));
+
   JS::Value val = js::GetReservedSlot(obj, DOM_OBJECT_SLOT);
   // XXXbz/khuey worker code tries to unwrap interface objects (which have
   // nothing here).  That needs to stop.