Merge "Fully null check mRecentsAnimationController" into sc-dev am: d61f224570 am: 2067c978a2 am: 7182dc0fbc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15147296

Change-Id: I3b662281d367879684ba860c1ba4f800d85ec83f