Merge "Assert correct nav bar visibility in overview" into tm-dev am: d423d780 am: ab03f9b2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17724000



Change-Id: Ief6165df55a8f006a574a262352ff02e6f38ab84
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>