Revert "Only allow HTTP/0.9 support on default ports."

The CL broke some websocket layout tests, will reland once that's
worked out.

This reverts commit 398c105ea8391473126021104554d70fda08324b.

Also add a group policy to allow HTTP/0.9 support on other
ports, which I plan to remove in a couple revisions.

BUG=624462, 637017
Committed: https://crrev.com/398c105ea8391473126021104554d70fda08324b
Cr-Commit-Position: refs/heads/master@{#415643}
TBR=eroman@chromium.org
NOTRY=true

Review-Url: https://codereview.chromium.org/2297263002
Cr-Commit-Position: refs/heads/master@{#415668}
24 files changed