Merge "Dispatch onAnimationStart and End to maintain proper state" into tm-qpr-dev am: 8baae80cdf am: be539a692d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21150244

Change-Id: Ic6440fd9256a8a9336d13e06dcb9699a2345d03b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>