[gnome-contacts] Dispose of cheese widget on avatar dialog destroy

[Erick Pérez Castellanos <erickpc src gnome org>]

commit e558b874015220f9fa047958c0b2fb7ad2d960ce
Author: Chris Cummins <christopher e cummins intel com>
Date:   Fri May 24 14:15:25 2013 +0100

    Dispose of cheese widget on avatar dialog destroy
    
    This ensures that the cheese widget is destroyed when the avatar dialog
    is closed. If the widget is not destroyed then the camera device remains
    in use, causing a blank preview to be shown if the dialog is reopened.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=700959

 src/contacts-avatar-dialog.vala |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/contacts-avatar-dialog.vala b/src/contacts-avatar-dialog.vala
index 1bd538c..927f4ea 100644
--- a/src/contacts-avatar-dialog.vala
+++ b/src/contacts-avatar-dialog.vala
@@ -448,6 +448,14 @@ public class Contacts.AvatarDialog : Dialog {
          }
        }
 
+#if HAVE_CHEESE
+       /* Ensure the Vala garbage collector disposes of the Cheese widget.
+        * This prevents the 'Device or resource busy' warnings, see:
+        *   https://bugzilla.gnome.org/show_bug.cgi?id=700959
+        */
+       cheese = null;
+#endif
+
        this.destroy ();
       });