Merge "Support multi-window handwriting without focus requirement on down" into tm-dev am: 003535dd am: 8da8e6c7 am: 0a6514b0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17982123



Change-Id: I622f7f81237dfc4d03cc1ab25cbbc9fb609b1ebd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>