bug#19972: 24.4; Font size change doesn't update (window-total-width)

[martin rudalics]

> Actually not. NS also only changes stuff when it gets an event that informs 
about resize.

IIUC Emacs doesn't run a timer when issuing a resize request on NS.  So
I have no idea how two subsequent resize requests are handled there.
Consider the case where Lisp code sends a height change request first
and a width change request afterwards: Which is the height Emacs asks
for in the second request?  The one before the first request or the one
after the first request has been honored?

martin