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

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



Change-Id: I341ab361c65a9db9bc0c3828131e95a3d49a85dc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>