Merge "Block clipboard UI when device is locked" into udc-dev am: d6d617e23a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/29282850

Change-Id: I34d00e3349139dc4623ba5e1962e1e3133fc604d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>