40ce12e1e1
Use default mouse event handling behaviour on macOS 13.3.1 onwards. This has two positive effects: * Avoids the workaround on newer macOS versions where it's unnecessary, thereby giving us confidence that the underlying AppKit issue is fixed and the whole method can later be removed. * Will be caught by tooling when we drop support for versions of macOS prior to the fixed version. Issue: https://github.com/flutter/flutter/issues/154063 Issue: https://github.com/flutter/flutter/issues/115015 No tests modified since there is no semantic change, either on versions of macOS where the issue is fixed (and thus the default event handler is correct) or on versions where it is not (and we still use the workaround). Re-tested manually with the reduced transparency setting on macOS 14.6.1. [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style