Add infra_libs as a bootstrap dependency.

appengine/chromium_try_flakes/handlers/test/index_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
 
 from testing_utils import testing
 
 from handlers import index
 import main
 from model.flake import Flake, FlakyRun, FlakeOccurrence
 from model.build_run import PatchsetBuilderRuns, BuildRun
 
-from time_functions.testing import mock_datetime_utc
+from infra_libs.time_functions.testing import mock_datetime_utc
 
 
 class TestIndex(testing.AppengineTestCase):
   app_module = main.app
 
   def test_filter_none(self):
     self.assertEqual([1, 2], index.filterNone([1, None, 2]))
 
   def test_smoke(self):
     self.test_app.get('/')
@@ skipping 70 matching lines @@
     index.Index.index('month')
 
   @mock_datetime_utc(2016, 6, 6, 10, 20, 30)
   def test_all_smoke(self):
     tf = datetime.datetime(2015, 6, 10, 10, 10, 30)
     ts = tf - datetime.timedelta(hours=1)
     tf2 = tf - datetime.timedelta(days=300)
     ts2 = tf2 - datetime.timedelta(hours=1)
     self._create_flakes(ts, tf, ts2, tf2)
     index.Index.index('all')