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: I915e4114c31d372b0a36c82aa9f903f3a2513af0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>