Merge "Manually set mLastTileBottom when not laying out" into tm-dev am: 78fd61c2 am: 33927c74

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18091104



Change-Id: Idcd10b7f7fef4f894ea4c2fc18b6a1d0d2234f29
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>