Decorationless managed windows again

[Alexandre Julliard]

Ove Kaaven <ovehk at ping.uio.no> writes:

> The logic in this patch is now somewhat revised according to Alexandre's
> comments. I did not make this configurable, though, thinking that if the
> user's WM really is too old to support them, then he probably wouldn't
> mind getting more top-level windows managed anyway...

Top-level windows maybe not, but menus and tooltips with wm
decorations are pretty annoying... so I applied it, but without the
is_window_managed changes, we will need a better algorithm there.

-- 
Alexandre Julliard
julliard at winehq.com