Merge "Support multi-window handwriting without focus requirement on down"...

Merge "Support multi-window handwriting without focus requirement on down" into tm-dev am: 003535dd am: 8da8e6c7 am: 5d05d5a4

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



Change-Id: I01e8eb7cb86196fa0d64b760ac382096f1932ed0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>