Use --extra_patchlevel for WebRTC patches on Chromium trybots.

recipe_modules/bot_update/resources/bot_update.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 # TODO(hinoka): Use logging.
 
 import cStringIO
 import codecs
 import collections
@@ skipping 1108 matching lines @@
 
   if patchset:
     cmd.extend(['--patchset', patchset])
   if whitelist:
     for item in whitelist:
       cmd.extend(['--whitelist', item])
   elif blacklist:
     for item in blacklist:
       cmd.extend(['--blacklist', item])
 
+  # TODO(kjellander): Remove this hack when http://crbug.com/611808 is fixed.
+  if root == 'src/third_party/webrtc':
+    cmd.extend(['--extra_patchlevel=1'])
+
   # Only try once, since subsequent failures hide the real failure.
   try:
     call(*cmd, tries=1)
   except SubprocessFailed as e:
     raise PatchFailed(e.message, e.code, e.output)
 
 def apply_gerrit_ref(gerrit_repo, gerrit_ref, root, gerrit_reset):
   gerrit_repo = gerrit_repo or 'origin'
   assert gerrit_ref
   print '===Applying gerrit ref==='
@@ skipping 622 matching lines @@
   except Exception:
     # Unexpected failure.
     emit_flag(options.flag_file)
     raise
   else:
     emit_flag(options.flag_file)
 
 
 if __name__ == '__main__':
   sys.exit(main())