Merge "Bubble flicker test: Ensure the notification shade is opened" into tm-dev am: ab6aaa76

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17475094



Change-Id: Ibaff15cc373c9f60856801143076052dcc879cbf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>