Green the garden-o-matic unittests.

Also fixes a real bug where we reversed the order of the
type/release/debug columns for the list of failing builders,
but we didn't adjust cellByBuildType or the tests to account
for it. Instead, re-reverse the order. Tests pass, bug fixed.
I'm not sure when this bug got introduced, but its at least
from before the Blink fork, as are most of these other test
failures.

NOTRY=true

Review URL: https://codereview.chromium.org/332073002

git-svn-id: svn://svn.chromium.org/blink/trunk@176161 bbb929c8-8fbe-4397-9dbb-9b2b20218538