Merge "Exact widget sizes functionalities into an utility class" into sc-dev am: 84fe7e3a1e am: 0c7a83af4d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14881307

Change-Id: I741a13492a9b28cc13bae8e904526709909edb7c