The commit-queue should fast-track patches that have already passed the testing EWS...

The commit-queue should fast-track patches that have already passed the testing EWS bots
https://bugs.webkit.org/show_bug.cgi?id=81305

Reviewed by Eric Seidel.

If a patch has already passed the testing EWS bots (currently only the
chromium-ews bot), we should be able to land the patch without running
the tests again.  This patch is somewhat risky in that the tests might
have been broken between when the EWS bots ran and when the
commit-queue is processing the patch.  If that turns out to be a
problem in practice, we'll tighten up this fast-track in some way,
likely by making sure that the pass status is recent.

* Scripts/webkitpy/tool/bot/commitqueuetask.py:
(CommitQueueTaskDelegate.did_pass_testing_ews):
(CommitQueueTask._did_pass_tests_recently):
(CommitQueueTask.run):
* Scripts/webkitpy/tool/bot/commitqueuetask_unittest.py:
(MockCommitQueue.did_pass_testing_ews):
(test_fast_success_case):
* Scripts/webkitpy/tool/commands/queues.py:
(CommitQueue.did_pass_testing_ews):
* Scripts/webkitpy/tool/commands/queues_unittest.py:
(test_did_pass_testing_ews):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@110944 268f45cc-cd09-0410-ab3c-d52691b4dbfc