The actorId parameter to the UserIdentityValue constructor has been
deprecated.
Change-Id: I4a22e761276a9fefa15c7b1554a0d03980d0c663
Needed-By: I9925906d11e47efaec3c1f48d5cb3f9896a982c1
Requires injecting a temporary block factory, and excluding
ManualLogEntry::insert from the test, but it's now much cleaner and
quicker.
It still cannot be a unit test due to the usage of User.
Change-Id: Iba9732d6d79733b31b45eb4d0187b1c8a82499dc