Merge "Fix the hidden task was removed before starting home" into udc-dev am:...

Merge "Fix the hidden task was removed before starting home" into udc-dev am: d4ef43a7 am: 0eb18278

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21918744



Change-Id: I5eeb5c0d87bdc9a1ecba6f577d797715afd7eef0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>