Merge "[16/n] Letterbox Education: focus on the dialog title for accessibility." into tm-dev am: 2e12d349 am: 40972999

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17084163

Change-Id: I84a5bef5ce4323cfa9c968bcb24905adddb2c113