Prepare for sending service settings when the extensions come up
Prepare for sending service settings when the extensions come up

Currently commented out due to
https://github.com/flutter/flutter/issues/14885

See #567.

Dart-Code/Dart-Code,Dart-Code/Dart-Code,Dart-Code/Dart-Code,Dart-Code/Dart-Code,Dart-Code/Dart-Code