Merge all swarm_*.py scripts into swarming.py.

tests/swarm_get_results_smoke_test.py

-#!/usr/bin/env python
-# Copyright (c) 2013 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 logging
-import os
-import subprocess
-import sys
-import unittest
-
-BASE_DIR = os.path.dirname(os.path.abspath(__file__))
-
-
-class TestSwarm(unittest.TestCase):
-  def test_example(self):
-    # pylint: disable=W0101
-    # A user should be able to trigger a swarm job and return results.
-    cmd = [
-      sys.executable,
-      os.path.normpath(
-          os.path.join(BASE_DIR, '..', 'example', 'run_example_swarm.py')),
-    ]
-    p = subprocess.Popen(
-        cmd,
-        stdin=subprocess.PIPE,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.STDOUT)
-    out = p.communicate()[0]
-    logging.debug(out)
-    self.assertEqual(0, p.returncode, out)
-
-
-if __name__ == '__main__':
-  logging.basicConfig(
-      level=logging.DEBUG if '-v' in sys.argv else logging.ERROR)
-  if '-v' in sys.argv:
-    unittest.TestCase.maxDiff = None
-  unittest.main()