Merge "Support shell rotation transition on general window container" into...

Merge "Support shell rotation transition on general window container" into tm-qpr-dev am: b27282ac

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19498810



Change-Id: I4e8033474aec8a51cb7ca5f8de1d9c5faefdb4fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>