Bug 498000 - Throw a better error when toString is called cross-origin on an XPCNativeWrapper from an unprivileged context. r+sr=bzbarsky

js/src/xpconnect/src/XPCNativeWrapper.cpp

@@ -1159,7 +1159,9 @@ XPC_NW_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
     }
   }
 
-  if (!EnsureLegalActivity(cx, obj)) {
+  if (!EnsureLegalActivity(cx, obj,
+                           GetRTStringByIndex(cx, XPCJSRuntime::IDX_TO_STRING),
+                           XPCWrapper::sSecMgrGetProp)) {
     return JS_FALSE;
   }