Merge "Report pending change to wallpaper when being visible" into tm-qpr-dev...

Merge "Report pending change to wallpaper when being visible" into tm-qpr-dev am: 1abdd8af am: 002280fe am: 4baf2b81

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21920183



Change-Id: I63be9ac69ccba04a83ab478b87e4f4afe5b9cd83
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>