Merge "Use androidx.window prebuilt." into tm-dev am: b42867b8 am: 3528b806 am: e57b342e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17646212



Change-Id: I30ccc2f8afd22c8e7d2e50ddad3c7d1c45e77107
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>