Merge "Drop the cloned windows from visible window list" into tm-dev am:...

Merge "Drop the cloned windows from visible window list" into tm-dev am: 8ef35112 am: 83574be6 am: 204c51e0 am: 166d96c9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18659076



Change-Id: Icb61eb0315b4930c6e519a7985f6d4e91e3ba1a2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>