Merge "Do not set mAnimatingExit on invisible window" into tm-qpr-dev am: 5dd3c9d4c1 am: 33ff9fb4c2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19604236

Change-Id: I408a22edafaea630cd08c4c396bedef7ba699d77
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>