a89b2d6e53
This PR syncs the contents of this package with the migrated version in the Dart SDK repository. Design Doc: go/migrating-webdev Webdev PR: https://github.com/dart-lang/webdev/pull/2716 Change-Id: I24adb9af51fab5a6f749b73aa8c1621a56b41a15 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/463120 Commit-Queue: Jessy Yameogo <yjessy@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com>