Automated Flutter integration test suites. Each suite consists of either a
complete Flutter app and a `flutter_driver` specification that drives tests
from the UI, or a native app that is meant to integrate with Flutter for
testing.

Intended for use with devicelab tests.

If you want to run a driver test locally, to debug a problem with a test,
you can use this command from the appropriate subdirectory:

```shell
% flutter drive
```