Merge "Reland "Allow activity in ActivityEmbedding to get Task windowing mode"" into tm-dev am: ddcd8e5e am: 76d6b5bb am: d41c4d0a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18030865



Change-Id: I4e95ba40e4b06bcddbe3a24c96e78cb6a83062b4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>