b/171162563

https://github.com/flutter/engine/blob/e698079ec95df82cfc0550fb439bd2e99c37eff1/shell/platform/android/io/flutter/embedding/android/FlutterView.java#L1198 should happen in the FlutterEngine initialization rather than in FlutterView. The context it needs is just the application context. We don't need an activity or a view there.

Otherwise, code running with just an engine and no view won't have any locales read from the system. Related #99504