[gtk+] Don't g_object_unref cairo surfaces

[Matthias Clasen <matthiasc src gnome org>]

commit 7894ff4bcbdb4c19c4f52d1d5e043377355e0e52
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 2 22:05:26 2011 -0500

    Don't g_object_unref cairo surfaces
    
    This was causing warnings when dragging text from labels.

 gtk/gtklabel.c |   22 ++++++++++++----------
 1 files changed, 12 insertions(+), 10 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 12b0d6a..a99f7a1 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -4883,22 +4883,24 @@ drag_begin_cb (GtkWidget      *widget,
 
       if (end > len)
         end = len;
-      
+
       if (start > len)
         start = len;
-      
-      surface = _gtk_text_util_create_drag_icon (widget, 
-						 priv->text + start,
-						 end - start);
+
+      surface = _gtk_text_util_create_drag_icon (widget,
+                                                 priv->text + start,
+                                                 end - start);
     }
 
   if (surface)
-    gtk_drag_set_icon_surface (context, surface);
+    {
+      gtk_drag_set_icon_surface (context, surface);
+      cairo_surface_destroy (surface);
+    }
   else
-    gtk_drag_set_icon_default (context);
-  
-  if (surface)
-    g_object_unref (surface);
+    {
+      gtk_drag_set_icon_default (context);
+    }
 }
 
 static gboolean