Merge "Dispatch onAnimationStart and End to maintain proper state" into tm-qpr-dev am: 8baae80c

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



Change-Id: I463f969d05b6e26e8d69cd906674a9c6a92be611
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>