3f3c6b4b8c
I don't believe this is used anywhere, but causes failures once the class is removed from the core libraries. Split off from https://dart-review.googlesource.com/c/sdk/+/259041 Bug: https://github.com/dart-lang/sdk/issues/49529 Change-Id: I9a215c981b0359b1d4521df9a330ec263b3b6c04 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/274382 Reviewed-by: Jens Johansen <jensj@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>