Merge "Hide animated ghost when underlying view is detached from window." into udc-dev am: abd3cd9285 am: 4b585d74bd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23729447

Change-Id: Ia74eecf8918c919f1e63165b8b0f181a6d76cea9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>