Merge "Support 3-finger swipe on the trackpad to unlock" into udc-dev am: fd8bfb6d am: ecdedc6c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21847213



Change-Id: If6af7bbbd5f757628f79d9ae4077ac1dc1d96fd3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>