Run app_list_unittests on Swarming in more configurations.

Run app_list_unittests on Swarming in more configurations.

Skip builders 'Chromium Mac 10.10', 'Linux Trusty (32)' and
'Linux Trusty (dbg)(32)', these configurations are not supported on Swarming at
the moment.

Revert running accessibility_unittests on Trusty 32 bits, it's not supported on
Swarming at the moment. This error was introduced in e664426489b.

Ran:
  ./manage.py --convert app_list_unittests
Then hand edited chromium.fyi.json.

R=phajdan.jr@chromium.org
BUG=98637
Committed: https://crrev.com/3a52f0563241416afa9ea75c1116ee1d82b6d913
Cr-Commit-Position: refs/heads/master@{#323251}

[Paweł Hajdan Jr., 2015-04-01 15:18:57]

LGTM

[M-A Ruel, 2015-04-01 15:23:41]

The CQ bit was checked by maruel@chromium.org

[commit-bot: I haz the power, 2015-04-01 15:23:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1048293003/1

[commit-bot: I haz the power, 2015-04-01 16:14:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-01 16:15:03]

Patchset 1 (id:??) landed as
https://crrev.com/3a52f0563241416afa9ea75c1116ee1d82b6d913
Cr-Commit-Position: refs/heads/master@{#323251}