Added a "Skip" expectation to allow test runs to avoid known timeouts

Added a "Skip" expectation to allow test runs to avoid known timeouts

Some tests are known to timeout, or fail after stalling for a long time. In
those cases setting the test expectation to "Fail" will enable the tests to pass
sucessfully, but the test may take much longer than necessary. By skipping the
long-running failure cases test time can be drastically reduced in some cases.

BUG=280750
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=220493

[Ken Russell (switch to Gerrit), 2013-08-29 22:04:40]

I'd like to see this get in because there are some buggy WebGL conformance tests
(being worked on) where its use might be warranted. I expect we will find
similar issues in the future where modifying the test suite is not feasible.

[dtu, 2013-08-29 22:21:53]

lgtm

[commit-bot: I haz the power, 2013-08-29 22:26:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bajones@chromium.org/23483022/1

[commit-bot: I haz the power, 2013-08-29 22:51:02]

Retried try job too often on linux_rel for step(s) base_unittests,
browser_tests, cacheinvalidation_unittests, cc_unittests, check_deps,
chromedriver2_unittests, components_unittests, content_browsertests,
content_unittests, crypto_unittests, gpu_unittests, interactive_ui_tests,
ipc_tests, jingle_unittests, media_unittests, nacl_integration, net_unittests,
ppapi_unittests, printing_unittests, remoting_unittests,
sandbox_linux_unittests, sql_unittests, sync_integration_tests, sync_unit_tests,
unit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2013-08-29 23:10:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bajones@chromium.org/23483022/39001

[commit-bot: I haz the power, 2013-08-30 03:18:11]

Change committed as 220493