Add --mode=noop so progress can be made while the builders are being reconfigured

tools/isolate/isolate_smoke_test.py

 #!/usr/bin/env python
 # 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.
 
 import cStringIO
 import hashlib
 import json
 import logging
 import os
@@ skipping 205 matching lines @@
         [sys.executable, os.path.join(ROOT_DIR, 'isolate.py'), '--help'],
         stdout=subprocess.PIPE,
         stderr=subprocess.STDOUT,
         cwd=ROOT_DIR)
     out = p.communicate()[0].splitlines()
     self.assertEquals(0, p.returncode)
     out = out[out.index('') + 1:]
     out = out[:out.index('')]
     modes = [re.match(r'^  (\w+) .+', l) for l in out]
     modes = tuple(m.group(1) for m in modes if m)
-    self.assertEquals(EXPECTED_MODES, modes)
+    # noop doesn't do anything so no point in testing it.
+    self.assertEquals(sorted(EXPECTED_MODES + ('noop',)), sorted(modes))
 
   def test_modes(self):
     # This is a bit redundant but make sure all combinations are tested.
     files = sorted(
       i[:-len('.isolate')]
       for i in os.listdir(os.path.join(ROOT_DIR, 'data', 'isolate'))
       if i.endswith('.isolate')
     )
     self.assertEquals(sorted(RELATIVE_CWD), files)
     self.assertEquals(sorted(DEPENDENCIES), files)
@@ skipping 288 matching lines @@
       ],
     }
     self.assertEquals(self._to_string(expected), out)
 
 
 
 if __name__ == '__main__':
   VERBOSE = '-v' in sys.argv
   logging.basicConfig(level=logging.DEBUG if VERBOSE else logging.ERROR)
   unittest.main()