Use calendar.timegm instead of time.mktime in recipes

infra/bots/recipes/upload_dm_results.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.
 
 
 # Recipe for uploading DM results.
 
 
 DEPS = [
   'build/file',
   'recipe_engine/json',
   'recipe_engine/path',
   'recipe_engine/properties',
   'recipe_engine/shutil',
   'recipe_engine/step',
   'recipe_engine/time',
 ]
 
 
-import time
+import calendar
 
 
 DM_JSON = 'dm.json'
 GS_BUCKET = 'gs://skia-infra-gm'
 UPLOAD_ATTEMPTS = 5
 VERBOSE_LOG = 'verbose.log'
 
 
 def cp(api, name, src, dst, extra_args=None):
   cmd = ['gsutil', 'cp']
@@ skipping 54 matching lines @@
   # Upload the JSON summary and verbose.log.
   now = api.time.utcnow()
   summary_dest_path = '/'.join([
       'dm-json-v1',
       str(now.year ).zfill(4),
       str(now.month).zfill(2),
       str(now.day  ).zfill(2),
       str(now.hour ).zfill(2),
       revision,
       builder_name,
-      str(int(time.mktime(now.utctimetuple())))])
+      str(int(calendar.timegm(now.utctimetuple())))])
 
   # Trybot results are further siloed by issue/patchset.
   if builder_name.endswith('-Trybot'):
     if not (issue and patchset):  # pragma: nocover
       raise Exception('issue and patchset properties are required for trybots.')
     summary_dest_path = '/'.join(('trybot', summary_dest_path, issue, patchset))
 
   summary_dest_path = '/'.join((GS_BUCKET, summary_dest_path))
 
   cp(api, 'JSON and logs', tmp_dir.join('*'), summary_dest_path,
@@ skipping 46 matching lines @@
     'event.change.number': '2100',
   }
   yield (
       api.test('recipe_with_gerrit_patch') +
       api.properties(
           buildername=builder,
           revision='abc123',
           path_config='kitchen',
           **gerrit_kwargs)
   )