Merge "Take screenshot on ui helper thread in live tile" into sc-dev am: 7c53f5d907 am: 1cf85448c0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14357548

Change-Id: I0ec587534f0d3860e0c4c27b4bd0d87e2e345141