macOS Sandbox: Port fontloading test to V2 sandbox.

This removes all of the obsolete unit testing code from the V1 sandbox.

Bug: 902597
Change-Id: I426e3b815e0bf23036815750aab350adbb22e068
Reviewed-on: https://chromium-review.googlesource.com/c/1327527
Commit-Queue: Greg Kerr <kerrnel@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612416}
5 files changed