Fix ui tests WorkerHttpLayoutTests failure

webkit/tools/layout_tests/layout_package/http_server.py

 #!/usr/bin/env python
 # Copyright (c) 2006-2009 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.
 
 """A class to help start/stop the lighttpd server used by layout tests."""
 
 
 import logging
 import optparse
 import os
 import shutil
 import subprocess
 import sys
 import tempfile
 import time
 import urllib
 
 import path_utils
+
+# So we can import httpd_utils below to make ui_tests happy.
+sys.path.append(path_utils.PathFromBase('tools', 'python'))
 import google.httpd_utils
 
 def RemoveLogFiles(folder, starts_with):
   files = os.listdir(folder)
   for file in files:
     if file.startswith(starts_with) :
       full_path = os.path.join(folder, file)
       os.remove(full_path)
 
 class Lighttpd:
@@ skipping 240 matching lines @@
       raise 'Specifying port requires also a root.'
     httpd = Lighttpd(tempfile.gettempdir(),
                      port=options.port,
                      root=options.root,
                      register_cygwin=options.register_cygwin,
                      run_background=options.run_background)
     if 'start' == options.server:
       httpd.Start()
     else:
       httpd.Stop(force=True)