Merge "Reduce unnecessary redraw of wallpaper when switching orientation" into...

Merge "Reduce unnecessary redraw of wallpaper when switching orientation" into udc-dev am: 72d126cd am: 91f472e9 am: d188c684 am: 849095b4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23444291



Change-Id: I971756e6c277d2f0588e2febf92da66cd7b2793e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>