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: I21b641cf6337797636c9856f1631e03d9ad3b8ee