Merge "Allow activity in ActivityEmbedding split to get Task windowing mode"...

Merge "Allow activity in ActivityEmbedding split to get Task windowing mode" into tm-dev am: 8358f51e am: 7c9f75db am: 3dd5217d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17905030



Change-Id: Ibb90a6b11683d9ef2a26ff04d354baedfcb045e0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>