Reland roll of gsutil, fix up the import of the boto library (it is now third_party)

dart/tools/get_archive.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Gets or updates a content shell (a nearly headless build of chrome). This is
 # used for running browser tests of client applications.
 
 import json
@@ skipping 37 matching lines @@
 SDK_VERSION = os.path.join(SDK_DIR, 'LAST_VERSION')
 SDK_LATEST_PATTERN = 'gs://dart-archive/channels/dev/raw/latest/VERSION'
 # TODO(efortuna): Once the x64 VM also is optimized, select the version
 # based on whether we are running on a 32-bit or 64-bit system.
 SDK_PERMANENT = ('gs://dart-archive/channels/dev/raw/%(version_num)s/sdk/' +
     'dartsdk-%(osname)s-ia32-release.zip')
 
 # Dictionary storing the earliest revision of each download we have stored.
 LAST_VALID = {'dartium': 4285, 'chromedriver': 7823, 'sdk': 9761, 'drt': 5342}
 
-sys.path.append(os.path.join(GSUTIL_DIR, 'boto'))
+sys.path.append(os.path.join(GSUTIL_DIR, 'third_party', 'boto'))
 import boto
 
 
 def ExecuteCommand(*cmd):
   """Execute a command in a subprocess."""
   pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
   output, error = pipe.communicate()
   return pipe.returncode, output
 
 
@@ skipping 278 matching lines @@
     GetDartiumRevision('content_shell', bot, DRT_DIR, DRT_VERSION,
                          DRT_LATEST_PATTERN, DRT_PERMANENT_PATTERN,
                          args.revision)
     CopyDrtFont(DRT_DIR)
   else:
     print ('Please specify the target you wish to download from Google Storage '
         '("drt", "dartium", "chromedriver", or "sdk")')
 
 if __name__ == '__main__':
   sys.exit(main())