bug#21473: 24.5; very slow tooltip display to sort-of-slow remote display

[Eli Zaretskii]

> From: Ken Raeburn <raeburn@permabit.com>
> Date: Mon, 5 Oct 2015 01:38:26 -0400
> Cc: 21473@debbugs.gnu.org
> 
> > You didn't answer my question about the possibility to remove the call
> > to x_set_mouse_color (and anything mouse-related) altogether in a tip
> > frame.  Is that feasible?  Could you try that and see if it has any
> > adverse effects?
> 
> Ah, sorry.  Yes, it seems to work okay, as far as I can tell, and cuts out 11 
> round trips.  With a remote display I’m able to move the mouse into the 
> tooltip window for a few seconds before it goes away, and (at least on my 
> display) it’s showing a basic black arrow pointer.

Is that black arrow mouse pointer different from what you see if the
call to x_set_mouse_color is retained?