Docserver: Override Walk in CachingFileSystem

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

Index: chrome/common/extensions/docs/server2/sidenav_data_source.py
diff --git a/chrome/common/extensions/docs/server2/sidenav_data_source.py b/chrome/common/extensions/docs/server2/sidenav_data_source.py
index 1a7bae9d68494a5c171332e215dfe2b17bc66bb2..8521a45472d344d1e40eb010d2109ea16401fcd3 100644
--- a/chrome/common/extensions/docs/server2/sidenav_data_source.py
+++ b/chrome/common/extensions/docs/server2/sidenav_data_source.py
@@ -6,7 +6,7 @@ import copy
 import logging
 import posixpath
 
-from compiled_file_system import SingleFile, Unicode
+from compiled_file_system import Cache, SingleFile, Unicode
 from data_source import DataSource
 from extensions_paths import JSON_TEMPLATES
 from future import Future
@@ -65,6 +65,7 @@ class SidenavDataSource(DataSource):
     self._server_instance = server_instance
     self._request = request
 
+  @Cache

[not at google - send to devlin, 2014/08/29 05:00:14]

Why this in particular?

[ahernandez, 2014/08/29 17:20:00]

The test for this is expecting cached data, and I thought it would be easier to
keep caching assumptions the same in this CL, then in another we can cache less.

   @SingleFile
   @Unicode
   def _CreateSidenavDict(self, _, content):