Drop async_visible and async_iconified fields of struct frame.

This is possible because async input is gone; for details, see
http://lists.gnu.org/archive/html/emacs-devel/2012-12/msg00734.html.
* frame.h (struct frame): Remove async_visible and async_iconified
members, convert garbaged to unsigned bitfield.  Adjust comments.
(FRAME_SAMPLE_VISIBILITY): Remove.  Adjust all users.
(SET_FRAME_VISIBLE, SET_FRAME_ICONIFIED): New macros.
* frame.c, gtkutil.c, term.c, w32fns.c, window.c, xdisp.c:
Consistently use SET_FRAME_VISIBLE, SET_FRAME_ICONIFIED,
FRAME_VISIBLE_P and FRAME_ICONIFIED_P macros where appropriate.
* w32term.c: Ditto.
(w32_read_socket): Save iconified state to generate DEICONIFY_EVENT
properly.  Likewise for obscured.
* xterm.c: Ditto.
(handle_one_xevent): Save visible state go generate ICONIFY_EVENT
properly.
* nsterm.m: Ditto.
(windowDidDeminiaturize): Generate DEICONIFY_EVENT.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/term.c b/src/term.c
index f66a0bddc33..a31fd51084e 100644
--- a/src/term.c
+++ b/src/term.c
@@ -2374,7 +2374,7 @@ A suspended tty may be resumed by calling `resume-tty' on it.  */)
       t->display_info.tty->output = 0;
 
       if (FRAMEP (t->display_info.tty->top_frame))
-        FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 0);
+        SET_FRAME_VISIBLE (XFRAME (t->display_info.tty->top_frame), 0);
 
     }
 
@@ -2444,7 +2444,7 @@ frame's terminal). */)
           get_tty_size (fileno (t->display_info.tty->input), &width, &height);
           if (width != old_width || height != old_height)
             change_frame_size (f, height, width, 0, 0, 0);
-          FRAME_SET_VISIBLE (XFRAME (t->display_info.tty->top_frame), 1);
+          SET_FRAME_VISIBLE (XFRAME (t->display_info.tty->top_frame), 1);
         }
 
       set_tty_hooks (t);