GitLab

Make it produce a source_set which can be depended on rather than directly including sources into the parent target.

Bug: chromium:682122
Change-Id: I7ad9f94459f187481e656e3513eabb3e2a6f92a1
Reviewed-on: https://chromium-review.googlesource.com/c/1348042Reviewed-by: Dan Sanders <sandersd@chromium.org>
Reviewed-by: Mirko Bonadei <mbonadei@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Oleh Prypin <oprypin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611117}