Extension docs server: many changes to bring down the latency of the server,

chrome/common/extensions/docs/server2/local_file_system.py

 # 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.
 
 import os
 
 import file_system
 from future import Future
 
 class LocalFileSystem(file_system.FileSystem):
@@ skipping 40 matching lines @@
       else:
         result[path] = self._ReadFile(self._ConvertToFilepath(path), binary)
     return Future(value=result)
 
   def _CreateStatInfo(self, path):
     if path.endswith('/'):
       versions = dict((filename, os.stat(os.path.join(path, filename)).st_mtime)
                       for filename in os.listdir(path))
     else:
       versions = None
-    return self.StatInfo(os.stat(path).st_mtime, versions)
+    return file_system.StatInfo(os.stat(path).st_mtime, versions)
 
   def Stat(self, path):
     try:
       return self._CreateStatInfo(os.path.join(self._base_path, path))
     except OSError:
       raise file_system.FileNotFoundError(path)