Merge "Keep transparent drawable for clipping outline during launch animation"...

Merge "Keep transparent drawable for clipping outline during launch animation" into sc-dev am: 66f1b578

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15284080

Change-Id: Ie06393d266ff3e3d290f77fa9170df4d88604ab8