[ekiga/ds-gtk-application] Prefs Window: Added missing application icon.

[Damien Sandras <dsandras src gnome org>]

commit afbc84487c0d8654726d68e6260d897bbd260b6a
Author: Damien Sandras <dsandras seconix com>
Date:   Sun Dec 14 17:44:22 2014 +0100

    Prefs Window: Added missing application icon.

 lib/engine/gui/gtk-frontend/preferences-window.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/preferences-window.cpp 
b/lib/engine/gui/gtk-frontend/preferences-window.cpp
index 2c99b40..85c464f 100644
--- a/lib/engine/gui/gtk-frontend/preferences-window.cpp
+++ b/lib/engine/gui/gtk-frontend/preferences-window.cpp
@@ -42,6 +42,7 @@
 #include <glib/gi18n.h>
 #include <boost/tuple/tuple.hpp>
 
+#include "gmstockicons.h"
 #include "ekiga-settings.h"
 
 #include "preferences-window.h"
@@ -1748,6 +1749,7 @@ preferences_window_new (GmApplication *app)
   gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), _("Preferences"));
   gtk_header_bar_set_subtitle (GTK_HEADER_BAR (headerbar), _("Edit your settings"));
   gtk_window_set_titlebar (GTK_WINDOW (self), headerbar);
+  gtk_window_set_icon_name (GTK_WINDOW (self), GM_ICON_LOGO);
   gtk_widget_show (headerbar);
 
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);