Swarming won't support an incremental data file. By just
sorting the lowest hanging fruits to the beginning we
already get a big bang for the buck (>80% of the improvement
we get otherwise).
This will require semi-regular manual updates of the
slowest tests.
BUG=chromium:535160
LOG=n
Review URL: https://codereview.chromium.org/1385443002
Cr-Commit-Position: refs/heads/master@{#31061}
This test is little-endian specific and therefore it can't run
correctly on big-endian platforms.
BUG=
Review URL: https://codereview.chromium.org/1155113008
Cr-Commit-Position: refs/heads/master@{#28667}