Merge "Revert "[Unfold animation] Do not show dark vignette when folding""...

Merge "Revert "[Unfold animation] Do not show dark vignette when folding"" into tm-qpr-dev am: a3e78cf8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21035043



Change-Id: Ib3c36db933f63f3acac8858741ada6630d75a61f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>