Merge "Execute flicker tests with device without wallpaper" into tm-dev am:...

Merge "Execute flicker tests with device without wallpaper" into tm-dev am: 759d7606 am: da2bb131

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17745135



Change-Id: Ib9da72a2d34d087401022fe56b97d3a12d38e4a4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>