Merge "Update ActivityEmbedding split open/close animation adapter for legacy"...

Merge "Update ActivityEmbedding split open/close animation adapter for legacy" into tm-qpr-dev am: 48bf8456

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19866404



Change-Id: I48a41e4394289933ff32c08e5cca6dadf6850d61
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>