Merge "Pass last touch event to DragDownHelper when starting doze" into...

Merge "Pass last touch event to DragDownHelper when starting doze" into udc-dev am: 4422c68b am: c142d4d1 am: bcc2e10d am: 0fecf42f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23267936



Change-Id: Ia1d6dafb4b0161a8f1620de36b69950124865cba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>