d9bd6667c2
I think synchronization_absl affects only google3, so should be no-op externally. Change-Id: I2845991719e5887e77c52528cd8155f1d20bcfaf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/449823 Auto-Submit: Ivan Inozemtsev <iinozemtsev@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Ivan Inozemtsev <iinozemtsev@google.com>