Flutter includes several accessibility-specific enums that must remain in sync. For example, accessibility features are recorded in:

• FlutterAccessibilityFeature enum in shell/platform/embedder/embedder.h
• AccessibilityFeatureFlag enum in lib/ui/window/platform_configuration.h
• AccessibilityFeatures class in lib/ui/window.dart
• AccessibilityFeatures class in lib/web_ui/lib/window.dart

Similarly, FlutterSemanticsAction, FlutterSemanticsFlag, and other enums need to be kept in sync.

Currently, a comment at each location reminds developers to keep these enums in sync, but what's needed is a test that automatically enforces this in presubmit.