Merge "Start 2d animation when view laid out." into udc-dev am: 0f4c76e8 am: 79512b15

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23417156



Change-Id: I3762420d7d621fb60f7266e30eadfa6c248d7592
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>