Merge "Prevent Taskbar from stashing in immersive mode overview." into...

Merge "Prevent Taskbar from stashing in immersive mode overview." into tm-qpr-dev am: 0355c793 am: d3f23005

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21560134



Change-Id: Ifa917ee63eb85bc4dca837b4e3fb92acb914e5ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>