editor/build/build.py: Use 32-bit version of dartium/content_shell on macos/windows + bat script fi…

dart/editor/build/build.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2013, 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.
 
 import glob
 import gsutil
 import imp
 import optparse
@@ skipping 981 matching lines @@
       if SYSTEM != 'win':
         os.chmod(destination, os.stat(destination).st_mode | stat.S_IEXEC)
 
     def add_download_scripts(zipFile, arch):
       shell_ending = {
         'win' : '.bat',
         'linux' : '.sh',
         'mac' : '.sh',
       }[SYSTEM]
 
+      # We don't have 64-bit versions of dartium/content_shell for
+      # macos/windows.
+      if ['mac', 'win'].contains(SYSTEM):
+        arch = '32'
+
       namer = bot_utils.GCSNamer(CHANNEL, bot_utils.ReleaseType.RELEASE)
 
       # We're adding download scripts to the chromium directory.
       # The directory tree will look like this after that:
       #   dart/dart-sdk/bin/dart{,.exe}
       #       /chromium/download_contentshell.{sh,bat}
       #       /chromium/download_dartium_debug.{sh,bat}
       #       /chromium/download_file.dart
 
       # Add download_file.dart helper utility to the zip file.
@@ skipping 450 matching lines @@
   """delete the given file - do not re-throw any exceptions that occur"""
   if os.path.exists(f):
     try:
       os.remove(f)
     except OSError:
       print 'error deleting %s' % f
 
 
 if __name__ == '__main__':
   sys.exit(main())