Merge "Fix translucent activities when unfolding" into tm-qpr-dev am: b3ec2ce0 am: d8832548

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21150127



Change-Id: I54fe89a781ad61a421ce6e5097b94326cdb1866f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>