[gtk+] link button: Set a drag icon

[Matthias Clasen <matthiasc src gnome org>]

commit 6af4947e70e01f296d8a28bc52333b9529971106
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Dec 10 14:05:01 2017 -0500

    link button: Set a drag icon
    
    It is a bit odd to drag nothing around, so set an icon.

 gtk/gtklinkbutton.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtklinkbutton.c b/gtk/gtklinkbutton.c
index 489178a..1426a36 100644
--- a/gtk/gtklinkbutton.c
+++ b/gtk/gtklinkbutton.c
@@ -237,6 +237,7 @@ gtk_link_button_init (GtkLinkButton *link_button)
                       targets,
                       GDK_ACTION_COPY);
   gdk_content_formats_unref (targets);
+  gtk_drag_source_set_icon_name (GTK_WIDGET (link_button), "text-x-generic");
 
   priv->click_gesture = gtk_gesture_multi_press_new (GTK_WIDGET (link_button));
   gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (priv->click_gesture), FALSE);