Merge "Disappearing UDFPS view when dragging down on lockscreen" into sc-dev am: b436fb9f am: 3faf6e02 am: bb8e0767

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15054864

Change-Id: I4d411e842cfddc39d10d364f7c224bae1b008a41