Converted accessibility_unittests to run on Swarming everywhere.

testing/buildbot/PRESUBMIT.py

 # Copyright (c) 2012 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.
 
-"""Top-level presubmit script for testing.
+"""Enforces json format.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details on the presubmit API built into depot_tools.
 """
 
 
 def CommonChecks(input_api, output_api):
-  output = []
-  blacklist = [r'gmock.*', r'gtest.*']
-  output.extend(input_api.canned_checks.RunPylint(
-      input_api, output_api, black_list=blacklist))
-  return output
+  args = [input_api.python_executable, 'manage.py', '--check']
+  cmd = input_api.Command(
+      name='manage', cmd=args, kwargs={}, message=output_api.PresubmitError)
+  return input_api.RunTests([cmd])
 
 
 def CheckChangeOnUpload(input_api, output_api):
   return CommonChecks(input_api, output_api)
 
 
 def CheckChangeOnCommit(input_api, output_api):
   return CommonChecks(input_api, output_api)