[automerger skipped] Block clipboard UI when device is locked am: a79e9e54 -s ours

am skip reason: Merged-In I1a48cbe64852dce3fba69915ca11dad8878f66eb with SHA-1 2976ca86 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/29288504



Change-Id: I022451cb0eaef0f705cdfc46d2172a9d1fa7a437
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>