[epiphany/wip/ephy-sync] prefs-dialog: Unref content manager at finalize

[Gabriel - Cristian Ivascu <gabrielivascu src gnome org>]

commit 20cb2911b20584e7fea54d6e5826577a1abc2c3e
Author: Gabriel Ivascu <ivascu gabriel59 gmail com>
Date:   Tue Aug 30 18:24:53 2016 +0300

    prefs-dialog: Unref content manager at finalize

 src/prefs-dialog.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/prefs-dialog.c b/src/prefs-dialog.c
index 316daf5..60d55a6 100644
--- a/src/prefs-dialog.c
+++ b/src/prefs-dialog.c
@@ -143,6 +143,7 @@ prefs_dialog_finalize (GObject *object)
     webkit_user_content_manager_unregister_script_message_handler (dialog->fxa_manager,
                                                                    "accountsCommandHandler");
     webkit_user_script_unref (dialog->fxa_script);
+    g_object_unref (dialog->fxa_manager);
   }
 
   G_OBJECT_CLASS (prefs_dialog_parent_class)->finalize (object);