Set public-read acl on editor installers

tools/bots/editor.py

 #!/usr/bin/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 os
 import re
 import shutil
 import sys
 import tempfile
@@ skipping 66 matching lines @@
   for filename in os.listdir(temp_dir):
     match = re.search('^dartium-.*-inc-([0-9]+)\.0$', filename)
     if match:
       return os.path.join(temp_dir, match.group(0))
   raise Exception("Couldn't find dartium archive")
 
 def UploadInstaller(dart_editor_dmg, directory):
   directory = directory % {'revision' : utils.GetSVNRevision()}
   uri = '%s/%s' % (GCS_EDITOR_BUCKET, directory)
   RunProcess([GSUTIL, 'cp', dart_editor_dmg, uri])
+  RunProcess([GSUTIL, 'setacl', 'public-read', uri])
 
 def CreateAndUploadMacInstaller(arch):
   dart_icns = os.path.join(
     'editor', 'tools', 'plugins', 'com.google.dart.tools.deploy',
     'icons', 'dart.icns')
   mac_build_bundle_py = os.path.join('tools', 'mac_build_editor_bundle.sh')
   mac_build_dmg_py = os.path.join('tools', 'mac_build_editor_dmg.sh')
   editor_dir = GetEditorDirectory('Release', arch)
   dart_sdk = GetDartSdkDirectory('Release', arch)
   with TempDir() as temp_dir:
@@ skipping 47 matching lines @@
       else:
         print ("We currently don't build installers for sys.platform=%s"
                 % sys.platform)
   return 0
 
 if __name__ == '__main__':
   try:
     sys.exit(main())
   except OSError as e:
     sys.exit(e.errno)