Fix for bug 756225 (Make CGNamespace.build respect declareOnly). r=bz.

--HG--
extra : rebase_source : 77729639e018cef8aef04ecb3f3cc0f818cb560c

dom/bindings/Codegen.py

@@ -288,10 +288,9 @@ class CGNamespace(CGWrapper):
         Static helper method to build multiple wrapped namespaces.
         """
         if not namespaces:
-            return child
-        return CGNamespace(namespaces[0], CGNamespace.build(namespaces[1:],
-                                                            child),
-                           declareOnly=declareOnly)
+            return CGWrapper(child, declareOnly=declareOnly)
+        inner = CGNamespace.build(namespaces[1:], child, declareOnly=declareOnly)
+        return CGNamespace(namespaces[0], inner, declareOnly=declareOnly)
 
 class CGIncludeGuard(CGWrapper):
     """