[eog] Replace uses of deprecated gdk_app_launch_context_new function

[Felix Riemann <friemann src gnome org>]

commit da78cc9ce6d8f02af9003d613fbb88951d0130bc
Author: Felix Riemann <friemann gnome org>
Date:   Wed Nov 30 14:51:05 2011 +0100

    Replace uses of deprecated gdk_app_launch_context_new function
    
    Use gdk_display_get_app_launch_context as advertised in GTK+ docs.

 src/eog-window.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/eog-window.c b/src/eog-window.c
index 6393e44..8479c02 100644
--- a/src/eog-window.c
+++ b/src/eog-window.c
@@ -4375,7 +4375,8 @@ eog_window_open_editor (GtkAction *action,
 	if (app_info == NULL)
 		return;
 
-	context = gdk_app_launch_context_new ();
+	context = gdk_display_get_app_launch_context (
+	  gtk_widget_get_display (GTK_WIDGET (window)));
 	gdk_app_launch_context_set_screen (context,
 	  gtk_widget_get_screen (GTK_WIDGET (window)));
 	gdk_app_launch_context_set_icon (context,