[pygobject] Add a default parameter to GtkTreeModel.filter_new

[John Palmieri <johnp src gnome org>]

commit f8de9b8615f5dc30f492781d792aef5fc1e9ab73
Author: Johan Dahlin <jdahlin litl com>
Date:   Mon Jun 27 00:41:24 2011 -0300

    Add a default parameter to GtkTreeModel.filter_new
    
    https://bugzilla.gnome.org/show_bug.cgi?id=653462

 gi/overrides/Gtk.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gi/overrides/Gtk.py b/gi/overrides/Gtk.py
index 1f16c61..80864ae 100644
--- a/gi/overrides/Gtk.py
+++ b/gi/overrides/Gtk.py
@@ -897,6 +897,9 @@ class TreeModel(Gtk.TreeModel):
 
         return tuple(values)
 
+    def filter_new(self, root=None):
+        return super(TreeModel, self).filter_new(root)
+
 TreeModel = override(TreeModel)
 __all__.append('TreeModel')