🚫 **BLOCKED** : Do not merge until
https://github.com/flutter/flutter/issues/161261 (additional test
coverage).
---
This PR eliminates (1) `scenario_app/android`, and all references to an
Android `scenario_app`, including documentation, CI configuration, build
rules, test runner, Android-side test application, and (2), to verify
and disambiguate the remains, renames the folder `ios_scenario_app`,
which is now accurate.
It also eliminates elements that were _only_ used in the Android-side
scenario_app, such as Firebase Test Lab uploading.
I would be open to doing this in phases if we thought it was better to
do so, but given its mostly a mechanical change (and by renaming the
directory, references can be checked merely by looking for
`/\bscenario_app/`, I believe this is safe to iterate on and eventually
merge after the holidays.
## Background
As of the merged mono-repo, there is no longer a requirement for the
engine to be testable as a standalone unit.
As an example,
[`%ENGINE%/testing/scenario_app`](3762f2e973/engine/src/flutter/testing/scenario_app),
which was intended to _emulate_ the Flutter framework (and some of
`flutter_tools` tooling), load the iOS and Android embedder, and run
various "scenarios" (which ran a combination of `dart:ui` code and
Android Java/iOS Obj-C) verifying golden-file screenshots.
Instead, it is now possible to write and run _real_ (full) Flutter apps
the same way that an end-user (or our own tests) would. One such example
is
[`dev/native_driver_test`](https://github.com/flutter/flutter/tree/master/dev/integration_tests/native_driver_test),
which is a full-fledged Flutter app, which uses standard tooling (i.e.
`flutter`), to test most of the same elements that previously were only
tested in the Android version of `scenario_app`.
This puts the wiki pages owned by the Android team into the docs/platforms/android directory as planned in [flutter.dev/go/migrate-flutter-wiki-spreadsheet](https://docs.google.com/spreadsheets/d/1x65189ZBdNiLRygpUYoU08pwvXD4M-Z157c6pm8deGI/edit?usp=sharing)
It also adds the android team labels to the label bot for future PRs.
Changes to the content were only updating cross links, or link to refer to the main branch rather than master.
Remaining links to the wiki will be updated once all other pages have finished moving, they still work in the meantime.
Part of https://github.com/flutter/flutter/issues/145009
