[gtk+] gtk: Fix XIGrabKeycode usage

[Bastien Nocera <hadess src gnome org>]

commit 0888e6f4854507600bdb72fe2eea65496be98407
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Oct 27 11:09:26 2011 +0100

    gtk: Fix XIGrabKeycode usage
    
    A modifier of "0" is still a modifier and must be submitted normally.
    A num_modifiers of 0 is essentially a noop in the server.
    
    As mentioned by Peter Hutterer <peter hutterer who-t net>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=662839

 gtk/gtkdnd.c |   18 ++++--------------
 1 files changed, 4 insertions(+), 14 deletions(-)
---
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index 1b8baa4..e116425 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -513,13 +513,8 @@ grab_dnd_keys (GtkWidget *widget,
           evmask.mask_len = sizeof (mask);
           evmask.mask = mask;
 
-          if (grab_keys[i].modifiers != 0)
-            {
-              num_mods = 1;
-              mods.modifiers = grab_keys[i].modifiers;
-            }
-          else
-            num_mods = 0;
+          num_mods = 1;
+          mods.modifiers = grab_keys[i].modifiers;
 
           XIGrabKeycode (GDK_WINDOW_XDISPLAY (window),
                          deviceid,
@@ -591,13 +586,8 @@ ungrab_dnd_keys (GtkWidget *widget,
 #ifdef XINPUT_2
       if (using_xi2)
         {
-          if (grab_keys[i].modifiers != 0)
-            {
-              num_mods = 1;
-              mods.modifiers = grab_keys[i].modifiers;
-            }
-          else
-            num_mods = 0;
+          num_mods = 1;
+          mods.modifiers = grab_keys[i].modifiers;
 
           XIUngrabKeycode (GDK_WINDOW_XDISPLAY (window),
                            deviceid,