This class is only constructed by ApiFeedRecentchanges, which
only calls either '$feed->getFeedObject' or '::buildItems',
neither of which call into the remaining methods on this class.
Appears to be a left over from an old refactor, perhaps from
when it was split out into FeedItem/ChannelFeed etc.
Change-Id: I89e13af992fd091d714d6f74735f03a5bfe9d238