I agree with Herzog. The wording in CC suggests that anyone can take the feats, not just clerics. However, a non-cleric is restricted to work with the DM to choose only something that fits flavor-wise with your character's religious preferences, and IF you take a second domain feat (which is your max), the second must fit thematically with the first.
Again, the utility of those feats are dramatically reduced however if you do not have the ability to turn undead which allows powering them more than once per day.