Split suborigin-cors-xhr-failure-output.php into two

async_test can be executed out of order, which leads to flaky console
output. This CL splits the file to avoid the issue.

Bug: 705125
Change-Id: I3dda81b84e05a6c50e786030d1a883e085fb80a0
Reviewed-on: https://chromium-review.googlesource.com/677165
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#504337}
5 files changed