[gnome-contacts] Fix warning

[Alexander Larsson <alexl src gnome org>]

commit a6e9650a5292040cdec3824a4d569e653eb5b436
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Aug 26 08:34:58 2011 +0200

    Fix warning

 src/contacts-cell-renderer-shape.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/contacts-cell-renderer-shape.vala b/src/contacts-cell-renderer-shape.vala
index 3dcc65f..fb378ae 100644
--- a/src/contacts-cell-renderer-shape.vala
+++ b/src/contacts-cell-renderer-shape.vala
@@ -208,6 +208,7 @@ public class Contacts.CellRendererShape : Gtk.CellRenderer {
 				 out int       y_offset,
 				 out int       width,
 				 out int       height) {
+    x_offset = y_offset = width = height = 0;
     // Not used
   }