Merge "Show resize frame when widget is added." into sc-dev am: 419ee4599e am: ffd5acea77 am: b87c950a69

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13956205

Change-Id: I4161a630b2e6dcd4c78ab17b8cb9ba5f5750d6e0