Run format-webkit on webkitpy code (without string conversion).

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline.py

 # Copyright (c) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 817 matching lines @@
             subprocess_command.append('--verbose')
         if options.auth_refresh_token_json:
             subprocess_command.append('--auth-refresh-token-json')
             subprocess_command.append(options.auth_refresh_token_json)
 
         process = self._tool.executive.popen(subprocess_command, stdout=self._tool.executive.PIPE,
                                              stderr=self._tool.executive.STDOUT)
         last_output_time = time.time()
 
         # git cl sometimes completely hangs. Bail if we haven't gotten any output to stdout/stderr in a while.
-        while process.poll() == None and time.time() < last_output_time + self.SECONDS_BEFORE_GIVING_UP:
+        while process.poll() is None and time.time() < last_output_time + self.SECONDS_BEFORE_GIVING_UP:
             # FIXME: This doesn't make any sense. readline blocks, so all this code to
             # try and bail is useless. Instead, we should do the readline calls on a
             # subthread. Then the rest of this code would make sense.
             out = process.stdout.readline().rstrip('\n')
             if out:
                 last_output_time = time.time()
                 _log.info(out)
 
-        if process.poll() == None:
+        if process.poll() is None:
             _log.error('Command hung: %s' % subprocess_command)
             return False
         return True
 
     # FIXME: Move this somewhere more general.
     def tree_status(self):
         blink_tree_status_url = "http://chromium-status.appspot.com/status"
         status = urllib2.urlopen(blink_tree_status_url).read().lower()
         if 'closed' in status or status == "0":
             return 'closed'
@@ skipping 80 matching lines @@
                     issue_already_closed = tool.executive.run_command(
                         ['git', 'config', 'branch.%s.rietveldissue' % rebaseline_branch_name],
                         return_exit_code=True)
                     if not issue_already_closed:
                         self._run_git_cl_command(options, ['set_close'])
 
                 tool.scm().ensure_cleanly_tracking_remote_master()
                 if old_branch_name_or_ref:
                     tool.scm().checkout_branch(old_branch_name_or_ref)
                 tool.scm().delete_branch(rebaseline_branch_name)