[evolution-data-server] ECalBackendFactory extends EDataCalFactory.

[Matthew Barnes <mbarnes src gnome org>]

commit 5b925dfd93f2ef18de2ffe61591bc674e746dbd0
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Apr 15 12:33:51 2012 -0400

    ECalBackendFactory extends EDataCalFactory.

 calendar/libedata-cal/e-cal-backend-factory.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/calendar/libedata-cal/e-cal-backend-factory.c b/calendar/libedata-cal/e-cal-backend-factory.c
index 45238b3..74c95e2 100644
--- a/calendar/libedata-cal/e-cal-backend-factory.c
+++ b/calendar/libedata-cal/e-cal-backend-factory.c
@@ -12,6 +12,7 @@
 
 #include "e-cal-backend.h"
 #include "e-cal-backend-factory.h"
+#include "e-data-cal-factory.h"
 
 G_DEFINE_ABSTRACT_TYPE (
 	ECalBackendFactory,
@@ -72,8 +73,12 @@ cal_backend_factory_new_backend (EBackendFactory *factory,
 static void
 e_cal_backend_factory_class_init (ECalBackendFactoryClass *class)
 {
+	EExtensionClass *extension_class;
 	EBackendFactoryClass *factory_class;
 
+	extension_class = E_EXTENSION_CLASS (class);
+	extension_class->extensible_type = E_TYPE_DATA_CAL_FACTORY;
+
 	factory_class = E_BACKEND_FACTORY_CLASS (class);
 	factory_class->get_hash_key = cal_backend_factory_get_hash_key;
 	factory_class->new_backend = cal_backend_factory_new_backend;