Merge "Stash taskbar on swipe to go home for 3p fallback launcher." into...

Merge "Stash taskbar on swipe to go home for 3p fallback launcher." into tm-qpr-dev am: f00e831f am: 08e0083e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22424377



Change-Id: I8706f34ac82ab61e2816ee414cd48c427ff7af33
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>