Docserver: make file_system a property of Create

chrome/common/extensions/docs/server2/caching_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 sys
 
 from file_system import FileSystem, StatInfo, FileNotFoundError
 from future import Future
 from object_store_creator import ObjectStoreCreator
 
@@ skipping 107 matching lines @@
 
     return Future(delegate=_AsyncUncachedFuture(
         self._file_system.Read(uncached.keys(), binary=binary),
         uncached,
         results,
         self,
         read_object_store))
 
   def GetIdentity(self):
     return self._file_system.GetIdentity()
+
+  def __repr__(self):
+    return '<%s of %s>' % (type(self).__name__,
+                           type(self._file_system).__name__)