The Data Generator is a testonly library for generating Data with correct sequence numbers. Bug: webrtc:12614 Change-Id: Ifc04dfd14d858d905312ffed13e8905c23d59923 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/214041 Commit-Queue: Victor Boivie <boivie@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33667}