Ref tests leak dom nodes

[brson]

For some reason, running the ref tests (the png compositor) ends up leaking dom nodes, while the screen compositor does not. If I comment out the following lines in content_task it does not leak:

            let compartment = option::expect(self.compartment, ~"TODO error checking");                                                                        
            compartment.define_functions(debug_fns);                                                                                                           
            define_bindings(*compartment,                                                                                                                      
                            option::get(self.document),                                                                                                        
                            option::get(self.window));   

[Ms2ger]

@jdm, does this still happen?

[nox]

This code doesn't even exist anymore, right?