Added packages/infra_libs as the first Python package.

test.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 """Convenience script for expect_tests"""
 
 assert __name__ == '__main__'
 
 import itertools
@@ skipping 28 matching lines @@
   'infra/libs/buildbot',
   'infra/libs/decorators',
   'infra/libs/gitiles',
   'infra/libs/process_invocation',
   'infra/libs/service_utils',
   'infra/libs/state_machine',
 
   'infra/services/service_manager',
   'infra/services/sysmon',
 
+  # TODO(sergeyberezin): remove this section when infra_libs is removed.
   'infra_libs/event_mon',
   'infra_libs/infra_types',
   'infra_libs/logs',
   'infra_libs/time_functions',
   'infra_libs/ts_mon',
+  'infra_libs:infra_libs.test.*',
 
-  'infra_libs:infra_libs.test.*',
+  'packages/infra_libs/infra_libs/event_mon',
+  'packages/infra_libs/infra_libs/infra_types',
+  'packages/infra_libs/infra_libs/logs',
+  'packages/infra_libs/infra_libs/time_functions',
+  'packages/infra_libs/infra_libs/ts_mon',
+  'packages/infra_libs/infra_libs:infra_libs.test.*',
 ]
 
 
 # Parse command-line arguments
 if len(sys.argv) == 1:
   usage()
   sys.exit(1)
 else:
   if not sys.argv[1] in ('list', 'train', 'test', 'debug'):
     usage()
@@ skipping 31 matching lines @@
     modules.extend(['appengine_module'])
     appengine_dirs = [
       os.path.join('appengine', d)
       for d in os.listdir(appengine_dir)
     ]
     # Use relative paths to shorten the command-line
     modules.extend(itertools.chain(
       [d for d in appengine_dirs if os.path.isfile(os.path.join(d,
           '.coveragerc'))]
     ))
+  packages_dir = os.path.join(INFRA_ROOT, 'packages')
+  if sys.platform != 'win32' and os.path.isdir(packages_dir):
+    packages_dirs = [
+      os.path.join('packages', d)
+      for d in os.listdir(packages_dir)
+    ]
+    # Use relative paths to shorten the command-line
+    modules.extend(itertools.chain(
+      [d for d in packages_dirs if os.path.isfile(os.path.join(d,
+          '.coveragerc'))]
+    ))
 
 os.environ['PYTHONPATH'] = ''
 os.chdir(INFRA_ROOT)
 if '--help' not in flags and '-h' not in flags:
   subprocess.check_call(
       [python_bin, os.path.join('bootstrap', 'remove_orphaned_pycs.py')])
 else:
   usage()
   sys.exit(subprocess.call([python_bin, expect_tests_path, command, '--help']))
 
@@ skipping 18 matching lines @@
 
 if exit_code:
   print 'Tests failed in modules:\n  %s' % '\n  '.join(failed_modules)
   if '--html-report' not in flags:
     print '\nFor detailed coverage report and per-line branch coverage,'
     print 'rerun with --html-report <dir>'
 else:
   print 'All tests passed.'
 
 sys.exit(exit_code)