GitLab

This CL removes support for the SANDBOX_EXPORTS compile option. The
feature is not tested or officially supported. It's common practice
to removed unused code where possible.

Bug: 610499
Change-Id: I357e8a0a531dc0cbbd263baa77441bb7f97c5585
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2544878
Commit-Queue: James Forshaw <forshaw@chromium.org>
Reviewed-by: Will Harris <wfh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828859}