From 7e13b241e0e25b723ef126c56c090027fe5c8a6a Mon Sep 17 00:00:00 2001
From: Blake Kaplan <mrbkap@gmail.com>
Date: Thu, 15 Jan 2009 16:34:55 -0800
Subject: [PATCH] Bug 472794 - Deal with XPCNativeWrapper.prototype properly.
 r+sr=jst

---
 js/src/xpconnect/src/xpcquickstubs.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/src/xpconnect/src/xpcquickstubs.cpp b/js/src/xpconnect/src/xpcquickstubs.cpp
index d05c4d2a82a8..79895272e7a3 100644
--- a/js/src/xpconnect/src/xpcquickstubs.cpp
+++ b/js/src/xpconnect/src/xpcquickstubs.cpp
@@ -536,7 +536,8 @@ xpc_qsUnwrapThisImpl(JSContext *cx,
         else if(XPCNativeWrapper::IsNativeWrapperClass(clazz))
         {
             wrapper = XPCNativeWrapper::GetWrappedNative(cur);
-            NS_ASSERTION(wrapper, "XPCNativeWrapper wrapping nothing");
+            if(!wrapper)
+                goto next;
         }
         else if(IsXPCSafeJSObjectWrapperClass(clazz))
         {