Merge "Unlock screen before test runs." into tm-dev am: 62b46c64 am: 8c2974fb am: 9b74ec6f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17546406



Change-Id: I11bf0101ae7dfc7f897698dbda3ab3fa4f645237
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>