Merge "Show and hide smartspace (1/3)" into udc-dev am: 8278c862

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23412556



Change-Id: If34a845402e8e4fd9f5066c3ca8f1859ba1ec9f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>