Merge "[Unfold transition] Update latency tracker to listen for animation...

Merge "[Unfold transition] Update latency tracker to listen for animation start" into tm-qpr-dev am: 596e3f90 am: fbd96fab

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20637217



Change-Id: Ib40faaf1d558aff9f10335c6f3bc9e8d2bad6b7c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>