filter_iter_criteria svcs test1 test2 test3 f calls
f campaign adgroup criterion for each criterion which matches
test1 campaign and test2 campaign adgroup and
test3 campaign adgroup criterion.
filter_iter_criteria2 svcs test1 test2 test3 f calls
f campaign adgroup criteria once for each adgroup, with a
a list of criteria which matches test1 campaign and
test2 campaign adgroup and test3 campaign adgroup criterion.