Merge "Hide empty shade view on transition to KG" into tm-dev am: 18c2cb18 am: eceefdae am: e453340a am: d0b2e149

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17937881



Change-Id: Ibd0c81c444f9dea8ab651a90428824b953cfc0b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>