Merge "Offload initial headless app query to handler thread." into rvc-dev am: bcdd5c5321 am: bd27badfb8 am: a97f6aca1a am: b9cffac656

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11708142

Change-Id: Ia9abd3ac89fe67a00f1b0e5753daf5fbb4c74182