Add no_auth flag to skip auth checking for buckets that don't require it. Also fix tests

tests/upload_to_google_storage_unittests.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.
 
 """Unit tests for upload_to_google_storage.py."""
 
 import optparse
 import os
 import Queue
@@ skipping 11 matching lines @@
 
 # ../third_party/gsutil/gsutil
 GSUTIL_DEFAULT_PATH = os.path.join(
     os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
     'third_party', 'gsutil', 'gsutil')
 TEST_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
 class UploadTests(unittest.TestCase):
   def setUp(self):
-    self.gsutil = GsutilMock(GSUTIL_DEFAULT_PATH)
+    self.gsutil = GsutilMock(GSUTIL_DEFAULT_PATH, None)
     self.temp_dir = tempfile.mkdtemp(prefix='gstools_test')
     self.base_path = os.path.join(self.temp_dir, 'gstools')
     shutil.copytree(os.path.join(TEST_DIR, 'gstools'), self.base_path)
     self.base_url = 'gs://sometesturl'
     self.parser = optparse.OptionParser()
     self.ret_codes = Queue.Queue()
     self.stdout_queue = Queue.Queue()
     self.lorem_ipsum = os.path.join(self.base_path, 'lorem_ipsum.txt')
     self.lorem_ipsum_sha1 = '7871c8e24da15bad8b0be2c36edc9dc77e37727f'
 
@@ skipping 113 matching lines @@
     sys.stdin = StringIO.StringIO('\0'.join(inputs))
     result = upload_to_google_storage.get_targets(
         ['-'],
         self.parser,
         True)
     self.assertEqual(result, inputs)
 
 
 if __name__ == '__main__':
   unittest.main()