[PUSHED] Resize backing window on window style change to fix what remains of #34392

[Andras Timar]

Gábor Stefanik <netrolller.3d at gmail.com> írta (2012. április 9. 20:15):
> Finally this does it.
>
> I think while testing it I've seen one instance of too wide buttons,
> but never too narrow. However, I'm not sure if this is the proper fix
> - it feels rather hacky. I've added a comment to this avail.

Pushed, thanks.

Andras