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

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

Change-Id: I57d5c3067a04c55c3d39e8774b0926ba0df50e1a