Merge "Only draw transient taskbar background for transient taskbar" into...

Merge "Only draw transient taskbar background for transient taskbar" into tm-qpr-dev am: 0c1714bb am: b0e063eb

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20290840



Change-Id: If782a3439dc69dd42e44226cd500e9d00e3dfa46
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>