Revert "Simplify calling loopers"

This reverts commit 07c0b7c0d13369a4d20ed833c8fb8e2e52cd216e.

Reason for revert: http://b/180818875 systemui crashloops in libhwui

Change-Id: Id62860d43d7fac572bd94ebc4fe5cc1ff7cc6820
2 files changed