Add new accessibility_unittests target to "try" and "fyi"

Add new accessibility_unittests target to "try" and "fyi"

Eventually we want accessibility_unittests everywhere that content_unittests is
currently run, because they target the same platforms and configurations.
These tests are fast, safe to shard, and should run on all platforms
other than iOS.

Please double-check carefully and assume I don't know what I'm doing.

BUG=322537
R=stip@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=242950

[ghost stip (do not use), 2014-01-03 19:40:50]

Can you split out the FYI and trybot changes? We can land these separately, then
use them to verify the stability of the tests before making it live on the main
waterfall.

[dmazzoni, 2014-01-03 22:15:13]

On 2014/01/03 19:40:50, stip wrote:
> Can you split out the FYI and trybot changes? We can land these separately,
then
> use them to verify the stability of the tests before making it live on the
main
> waterfall.

Done. I'll upload the rest in a separate changelist shortly.

[ghost stip (do not use), 2014-01-03 22:37:45]

lgtm.

note that the _br versions of the tests should go live once this CL is committed

[dmazzoni, 2014-01-03 22:46:32]

Committed patchset #2 manually as r242950 (presubmit successful).

[James Cook, 2014-01-14 16:41:11]

https://codereview.chromium.org/107413007/diff/50001/scripts/master/factory/c...
File scripts/master/factory/chromium_factory.py (right):

https://codereview.chromium.org/107413007/diff/50001/scripts/master/factory/c...
scripts/master/factory/chromium_factory.py:340:
f.AddBuildrunnerGTest('accessibility_unittests_br', fp)
I think this might be a typo.

[ghost stip (do not use), 2014-01-14 22:24:36]

indeed it is!

[Elliot Glaysher, 2014-01-15 21:30:38]

On 2014/01/14 22:24:36, stip wrote:
> indeed it is!

So is this typo responsible for the various linux_aura failures which are trying
to run an accessibility_unittests_br ?

http://build.chromium.org/p/tryserver.chromium/builders/linux_aura/builds/112...

is an example, but it's basically been failing consistently for a week now.

[ghost stip (do not use), 2014-01-15 21:32:52]

yes, the fix is in https://chromiumcodereview.appspot.com/135153004/

[earthdok, 2014-02-21 17:06:49]

It's not correct to add tests to the trybot (linux_asan) without simultaneously
adding them to the corresponding waterfall bot. If anyone breaks those tests,
the sheriffs will have no way of knowing and the trybot will just stay red.