Reland of Enable Mac headless tests now that headless targets are included on Mac build. (patchset #1 id:1 of https://codereview.chromium.org/2792893002/ )

Reason for revert:
Rollforward: Enable Mac headless tests now that headless targets are included on Mac build

The issue has been fixed in: https://codereview.chromium.org/2792913002/

Original issue's description:
> Revert of Enable Mac headless tests now that headless targets are included on Mac build. (patchset #2 id:20001 of https://codereview.chromium.org/2783053002/ )
>
> Reason for revert:
> These tests are failing on Mac10.10 Tests
>
> https://uberchromegw.corp.google.com/i/chromium.mac/builders/Mac10.10%20Tests
>
> Original issue's description:
> > Enable Mac headless tests now that headless targets are included on Mac build.
> >
> > BUG=687407
> >
> > Review-Url: https://codereview.chromium.org/2783053002
> > Cr-Commit-Position: refs/heads/master@{#461362}
> > Committed: https://chromium.googlesource.com/chromium/src/+/69dd94f8ffe4b3d279b599fe4bff3445e20c0c1a
>
> TBR=dpranke@chromium.org,skyostil@chromium.org,dvallet@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=687407
>
> Review-Url: https://codereview.chromium.org/2792893002
> Cr-Commit-Position: refs/heads/master@{#461370}
> Committed: https://chromium.googlesource.com/chromium/src/+/1442dca9acb9b78f2c2b047ec77f01e60f266796

TBR=dpranke@chromium.org,skyostil@chromium.org,timloh@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=687407

Review-Url: https://codereview.chromium.org/2796753002
Cr-Commit-Position: refs/heads/master@{#461581}
1 file changed