[Findit] For automatic analyses of flaky tests, run the Swarming tasks off PST peak hours.

appengine/findit/waterfall/flake/test/initialize_flake_pipeline_test.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import mock
 
 from common import constants
 from common.pipeline_wrapper import pipeline_handlers
 from model import analysis_status
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
@@ skipping 104 matching lines @@
 
     ScheduleAnalysisIfNeeded(
         master_name, builder_name, build_number,
         step_name, test_name, allow_new_analysis=True,
         queue_name=constants.DEFAULT_QUEUE)
 
     analysis = MasterFlakeAnalysis.GetVersion(
         master_name, builder_name, build_number, step_name, test_name)
     self.assertIsNotNone(analysis)
     mocked_pipeline.assert_has_calls(
-        [mock.call().start(queue_name=constants.DEFAULT_QUEUE)])
+        [mock.call().StartOffPSTPeakHours(queue_name=constants.DEFAULT_QUEUE)])
 
   @mock.patch(
       'waterfall.flake.recursive_flake_pipeline.RecursiveFlakePipeline')
   def testNotStartPipelineForNewAnalysis(self, mocked_pipeline):
     master_name = 'm'
     builder_name = 'b'
     build_number = 124
     step_name = 's'
     test_name = 't'
 
     self._CreateAndSaveMasterFlakeAnalysis(
         master_name, builder_name, build_number, step_name, test_name,
         status=analysis_status.COMPLETED)
 
     ScheduleAnalysisIfNeeded(
         master_name, builder_name, build_number,
         step_name, test_name,
         queue_name=constants.DEFAULT_QUEUE)
 
     self.assertFalse(mocked_pipeline.called)