Don't present from inside the Activity constructor

sugar/activity/activity.py

@@ -47,8 +47,6 @@ class Activity(gtk.Window):
 
         self._bus = ActivityService(self)
 
-        self.present()
-
     def get_service_name(self):
         """Gets the activity service name."""
         return os.environ['SUGAR_BUNDLE_SERVICE_NAME']

sugar/activity/activityfactoryservice.py

@@ -61,6 +61,7 @@ class ActivityFactoryService(dbus.service.Object):
     def create(self, handle):
         activity_handle = activityhandle.create_from_dict(handle)
         activity = self._constructor(activity_handle)
+        activity.present()
 
         self._activities.append(activity)
         activity.connect('destroy', self._activity_destroy_cb)