Merge "Use WidgetSizes to estimate widget size instead of custom calculation" into sc-dev am: 4716ab3037 am: ccaa1c2c4a am: 1ecc5cc263

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14881309

Change-Id: I81572c156b55328cf47b72fef3aa30021914a4b2