Choose more magical magic

Authored by awight on Oct 12 2017, 6:44 PM.


Choose more magical magic

Empty array was returned in the legitimate case where nothing needs to be
fetched from the thresholds API, so I've changed the magic to a number, which
can never be returned by normal code.

Bug: T175053
Change-Id: If8064ddd4b229c090c3747698b83106aee17845b