[Predator] Move time_util from common/ to lib/, split code review related part to code_review_util

appengine/findit/handlers/flake/test/list_flakes_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 datetime
 import mock
 import webapp2
 
-from common import time_util
 from handlers.flake import list_flakes
 from handlers.flake.list_flakes import FilterMasterFlakeAnalysis
+from lib import time_util
 from model import analysis_status
 from model import result_status
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
 from waterfall.test import wf_testcase
 
 
 class FilterFlakeTest(wf_testcase.WaterfallTestCase):
   app_module = webapp2.WSGIApplication([
       ('/waterfall/list-flakes', list_flakes.ListFlakes),
   ], debug=True)
@@ skipping 203 matching lines @@
         'master_name_filter': '',
         'builder_name_filter': '',
         'build_number_filter': self.build_number1,
         'step_name_filter': '',
         'test_name_filter': '',
         'result_status_filter': result_status.UNSPECIFIED,
     }
 
     self.assertEquals(response.json_body, expected_result)
     self.assertEquals(200, response.status_int)