Greg Spencer 5fa39ff142 Check FlutterAppDelegate selector support before calling (flutter/engine#43425) ...

## Description

This adds checks for the app delegate to make sure that it supports the Flutter-specific selectors before calling them, so that a non `FlutterAppDelegate` can be used for the `NSApplicationDelegate` on `NSApp`.

## Related Issues
 - https://github.com/flutter/flutter/issues/124829
 - https://github.com/flutter/flutter/issues/127476

## Tests
 - Added a test to make sure things don't crash if the app delegate isn't a `FlutterAppDelegate`.

2023-07-18 17:31:43 +00:00

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src/flutter

Check FlutterAppDelegate selector support before calling (flutter/engine#43425)

2023-07-18 17:31:43 +00:00