[automerger skipped] Tests & stronger guarantees for hidl_* pads. am: f0dd160cbe am: 3ddc0a4b84 am: c6235fc094
am: 1ecbe9f19b -s ours
am skip reason: change_id Ib52a16015b0393c104cd984376328cb0da888b03 with SHA1 cdc4bb8b80 is in history

Change-Id: Ia32fdd2c4ca4027ea6fc4cb76d41520a6de7c307