[gtk+] x11: Fix first call to _gdk_x11_keymap_key_is_modifier()

[Bastien Nocera <hadess src gnome org>]

commit 6697d5c6def72c8a4f4fa2b29ccb0afede90ca38
Author: Bastien Nocera <hadess hadess net>
Date:   Sun Feb 19 16:43:33 2012 +0100

    x11: Fix first call to _gdk_x11_keymap_key_is_modifier()
    
    _gdk_x11_keymap_key_is_modifier() never tries to set min/max_keycode
    if they haven't been set before, meaning that until another function
    sets those, all the keys will be seen as non-modifiers.
    
    This causes GdkKeyEvents to be wrongly tagged with "->is_modifier = 0"
    when in actual fact the key is a modifier. This fixes keyboard
    shortcuts captured with GtkCellRendererAccel in "raw" mode thinking
    a modifier without any actual keys is a valid shortcut.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=670400

 gdk/x11/gdkkeys-x11.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gdk/x11/gdkkeys-x11.c b/gdk/x11/gdkkeys-x11.c
index a2c5e6e..c2e5e96 100644
--- a/gdk/x11/gdkkeys-x11.c
+++ b/gdk/x11/gdkkeys-x11.c
@@ -1490,6 +1490,7 @@ _gdk_x11_keymap_key_is_modifier (GdkKeymap *keymap,
   GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap);
   gint i;
 
+  update_keyrange (keymap_x11);
   if (keycode < keymap_x11->min_keycode ||
       keycode > keymap_x11->max_keycode)
     return FALSE;