Merge "Animate ActivityEmbedding transition with Shell Transition" into tm-qpr-dev am: 27ac3885

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19691237



Change-Id: If5c817558945f9e27783a485c04145b7b31dcadf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>