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

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



Change-Id: I655eb1d0878a8bb65eb8cb8cc3fab616c9e8e78d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>