Merge "Show widget previews in their expected cell sizes" into sc-dev am: 05cc458dbf

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13701718

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1e170c18566ac1b0ef044f13d30a1be0336ce6ad