Disallow [ Missing ] expectations in test expectations files.
Reason: In general, cases where people would need to add Missing expectations should probably be handled generating/fetching new baselines, or adding NeedsRebaseline or NeedsManualRebaseline expectations.
This CL also removes "failures/expected/missing_*" tests that are added in layout_tests/port/test.py.
BUG=661215,591500
Review-Url: https://codereview.chromium.org/2467013002
Cr-Commit-Position: refs/heads/master@{#429326}
8 files changed