Merge "Invoke redraw callback for wallpaper if size is changed" into udc-dev am: 25aa2d3c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23444857



Change-Id: Ie6b05c287221fb8a81f6cf3c8a727b54f95258f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>