Merge "Makes lock screen long-press popup background fixed." into udc-dev am:...

Merge "Makes lock screen long-press popup background fixed." into udc-dev am: 7738e34d am: 53a1c370

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22767422



Change-Id: I15d01000eed163bc1837810acc5fbb8f735f22f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>