Makes only the necessary members public or protected
The Deferred classes had some members set as protected which are actually just meant for use within the corresponding class.
Therefore, this MR changes their visiblity to private.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The Deferred classes had some members set as protected which are actually just meant for use within the corresponding class.
Therefore, this MR changes their visiblity to private.