Merge "Polish the back to home gesture animation to match the spec." into...

Merge "Polish the back to home gesture animation to match the spec." into tm-dev am: cf806451 am: d0b7edd0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17646341



Change-Id: I381a21943d46a20cc24e7ab3474665704eba060b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>