In #122336 we migrated the principal class from NSApplication to
FlutterApplication in the app Info.plist. We removed the need for
FlutterApplication in https://github.com/flutter/engine/pull/40929. This
reverses the migration for anyone who previously upgraded on the Flutter
master branch.

Issue: https://github.com/flutter/flutter/issues/30735

## Pre-launch Checklist

- [X] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [X] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [X] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [X] I signed the [CLA].
- [X] I listed at least one issue that this PR fixes in the description
above.
- [X] I updated/added relevant documentation (doc comments with `///`).
- [X] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [X] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#overview
[Tree Hygiene]: https://github.com/flutter/flutter/wiki/Tree-hygiene
[test-exempt]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#handling-breaking-changes
[Discord]: https://github.com/flutter/flutter/wiki/Chat

https://github.com/flutter/engine/compare/4219c72ac8f0...db23c3fbe0b0

2023-04-05 bdero@google.com [Impeller] Snap glyph positions to screen
space pixels and map UVs correctly (flutter/engine#40912)
2023-04-05 chris@bracken.jp [macOS] Handle termination in
FlutterAppDelegate (flutter/engine#40929)
2023-04-05 skia-flutter-autoroll@skia.org Manual roll Dart SDK from
f97b9d9b2f64 to beff36793081 (1 revision) (flutter/engine#40934)
2023-04-05 chillers@google.com Revert "[web] remove obsolete object
caches; simplify native object management" (flutter/engine#40937)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jonahwilliams@google.com,rmistry@google.com,zra@google.com on
the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

[flutter_tools] Include mode in app.start event, and forward app.start to DAP clients

Roll Flutter Engine from 65515adfb5eb to 4219c72ac8f0 (1 revision)

[platform_view]fix iOS platform view's focus node leakage

Roll Flutter Engine from 3e5f27d4812e to 65515adfb5eb (5 revisions)

Roll Flutter Engine from 8edd3c000a39 to 3e5f27d4812e (3 revisions)

Originally reverted due to a misattributed hot reload benchmark
regression.

This reverts commit f5bce716.

Adds i18n to widget layer

Move analyzer_benchmark_vm to vm

Always use the canvaskit path from the web sdk.

Allow --ipv6 flag for flutter attach on iOS devices

Add flag to filter by device connection interface

Re-land of https://github.com/flutter/flutter/pull/123297 without any of
the commits at the end attempting to fix customer-testing.

Fixes https://github.com/flutter/flutter/issues/118810

Better support for wireless devices in IDEs

Rename Sample classes

Add adaptive constructor to Radio and RadioListTile

Make flutter_adapter_test more resilient to pub output

https://github.com/flutter/engine/compare/e860fa87d21c...8edd3c000a39

2023-04-04 joshualitt@google.com [web] Migrate EventListener's to JS
types. (flutter/engine#40566)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jonahwilliams@google.com,rmistry@google.com,zra@google.com on
the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Do not use colors in output if running from CI.

Roll Flutter Engine from f2a547b088f6 to e860fa87d21c (2 revisions)

Roll Flutter Engine from b82ce3f6c305 to f2a547b088f6 (1 revision)

Roll Packages from bc15c97a5b6b to 3df3ba528e29 (5 revisions)

Roll Flutter Engine from 047ce9ef1e50 to b82ce3f6c305 (1 revision)

Roll Flutter Engine from b5d2c056a091 to 047ce9ef1e50 (1 revision)

Roll Flutter Engine from 37ea80f6951b to b5d2c056a091 (1 revision)

Reverts flutter/flutter#124088

This PR should properly incorporate the new Welsh translations into
Flutter (and maybe some other strings that seem to be updated in TC).

I think the other translation changes come from this issue:
https://github.com/flutter/flutter/issues/115181.

Fixes https://github.com/flutter/flutter/issues/120124.

Roll Flutter Engine from aa60150eda7e to 37ea80f6951b (11 revisions)

Revert "Add Welsh to Material Flutter (and update some other translations)"

Run web integration tests on x64 or arm Macs

This PR should properly incorporate the new Welsh translations into
Flutter (and maybe some other strings that seem to be updated in TC).

I think the other translation changes come from this issue:
https://github.com/flutter/flutter/issues/115181.

Fixes #120124.

Roll Flutter Engine from 2e5cdeade5cc to aa60150eda7e (3 revisions)

Roll Flutter Engine from bda4d15abf00 to 2e5cdeade5cc (2 revisions)

Roll Flutter Engine from 1db7e7d59fa8 to bda4d15abf00 (4 revisions)