Merge "Log event logs about wallpaper surface request visibility" into tm-dev...

Merge "Log event logs about wallpaper surface request visibility" into tm-dev am: b716e344 am: 12b6990c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16980305

Change-Id: I11a9d8dc11c3c26504a0aa87557075b78d333049