| Index: chrome/common/extensions/docs/server2/caching_file_system.py | 
| diff --git a/chrome/common/extensions/docs/server2/caching_file_system.py b/chrome/common/extensions/docs/server2/caching_file_system.py | 
| index 3d88e5ac8206cdb93fbeae6150013e9dcc65494d..a2031505220ba35604359d9150bd17ace6eae9f9 100644 | 
| --- a/chrome/common/extensions/docs/server2/caching_file_system.py | 
| +++ b/chrome/common/extensions/docs/server2/caching_file_system.py | 
| @@ -125,3 +125,7 @@ class CachingFileSystem(FileSystem): | 
|  | 
| def GetIdentity(self): | 
| return self._file_system.GetIdentity() | 
| + | 
| +  def __repr__(self): | 
| +    return '<%s of %s>' % (type(self).__name__, | 
| +                           type(self._file_system).__name__) | 
|  |