ERP5Workflow: fix security declarations

product/ERP5/InteractionWorkflow.py

@@ -336,7 +336,7 @@ class InteractionWorkflowDefinition (DCWorkflowDefinition, ActiveObject):
 
     return DCWorkflowDefinition._checkTransitionGuard(self, t, ob, **kw)
 
-  security.declarePrivate('getReference')
+  security.declareProtected(Permissions.AccessContentsInformation, 'getReference')
   def getReference(self):
     return self.id
 
@@ -358,7 +358,7 @@ class InteractionWorkflowDefinition (DCWorkflowDefinition, ActiveObject):
       return self.interactions.objectIds()
     return []
 
-  security.declarePrivate('getPortalType')
+  security.declareProtected(Permissions.AccessContentsInformation, 'getPortalType')
   def getPortalType(self):
     return self.__class__.__name__