Merge "Report layer boost at all levels, not just Activity" into rvc-dev am: a91a1517 am: 5be8caf1 am: 5a4e8ac2 am: bee790bc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11937472

Change-Id: Iff1b76ff4a465c797990a0fae5d1509089a0276f