Re-enable nacl_integration on Mac.

chrome/test/nacl_test_injection/buildbot_nacl_integration.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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 os
 import subprocess
 import sys
 
 
 def Main(args):
   pwd = os.environ.get('PWD', '')
   is_integration_bot = 'nacl-chrome' in pwd
 
-  if not is_integration_bot and sys.platform == 'darwin':
-    # TODO: Reenable.
-    sys.stdout.write('Skipping nacl_integration, see http://crbug.com/105406\n')
-    return
-
   # On the main Chrome waterfall, we may need to control where the tests are
   # run.
   # If there is serious skew in the PPAPI interface that causes all of
   # the NaCl integration tests to fail, you can uncomment the
   # following block.  (Make sure you comment it out when the issues
   # are resolved.)  *However*, it is much preferred to add tests to
   # the 'tests_to_disable' list below.
   #if not is_integration_bot:
   #  return
 
@@ skipping 55 matching lines @@
          '--',
          nacl_integration_script,
          '--disable_tests=%s' % ','.join(tests_to_disable)] + args
   sys.stdout.write('Running %s\n' % ' '.join(cmd))
   sys.stdout.flush()
   return subprocess.call(cmd)
 
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv[1:]))