Revert 122113 - Fix pnacl SDK builder

build/download_nacl_toolchains.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.
 
 """Shim to run nacl toolchain download script only if there is a nacl dir."""
 
 import os
 import sys
 
@@ skipping 16 matching lines @@
   import download_toolchains
 
   # TODO (robertm): Finish getting PNaCl ready for prime time.
   # BUG:
   # We remove this --optional-pnacl argument, and instead replace it with
   # --no-pnacl for most cases.  However, if the bot name is the pnacl_sdk
   # bot then we will go ahead and download it.  This prevents increasing the
   # gclient sync time for developers, or standard Chrome bots.
   if '--optional-pnacl' in args:
     args.remove('--optional-pnacl')
-    buildbot_name = os.environ.get('BUILDBOT_BUILDERNAME', '')
-    if buildbot_name.contains('pnacl') and  buildbot_name.contains('sdk'):
+    if os.environ.get('BUILDBOT_BUILDERNAME', '') == 'linux_pnacl_sdk':
       print '\n*** DOWNLOADING PNACL TOOLCHAIN ***\n'
     else:
       args.append('--no-pnacl')
 
   download_toolchains.Main(args)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv[1:]))