Docserver: Automatically implement FileSystem.Stat if FileSystem.StatAsync has

chrome/common/extensions/docs/server2/subversion_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 posixpath
 import traceback
 import xml.dom.minidom as xml
 from xml.parsers.expat import ExpatError
 
 from appengine_url_fetcher import AppEngineUrlFetcher
@@ skipping 149 matching lines @@
         if path.endswith('/'):
           value[path] = list_dir(result.content)
         else:
           value[path] = result.content
       return value
     return Future(callback=resolve)
 
   def Refresh(self):
     return Future(value=())
 
-  def Stat(self, path):
-    return self.StatAsync(path).Get()
-
   def StatAsync(self, path):
     directory, filename = posixpath.split(path)
     if self._revision is not None:
       # |stat_fetch| uses viewvc which uses pathrev= for version.
       directory += '?pathrev=%s' % self._revision
 
     result_future = self._stat_fetcher.FetchAsync(directory)
     def resolve():
       try:
         result = result_future.Get()
@@ skipping 20 matching lines @@
       return StatInfo(stat_info.child_versions[filename])
 
     return Future(callback=resolve)
 
   def GetIdentity(self):
     # NOTE: no revision here, since it would mess up the caching of reads. It
     # probably doesn't matter since all the caching classes will use the result
     # of Stat to decide whether to re-read - and Stat has a ceiling of the
     # revision - so when the revision changes, so might Stat. That is enough.
     return '@'.join((self.__class__.__name__, StringIdentity(self._svn_path)))