Docserver: make file_system a property of Create

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

Index: chrome/common/extensions/docs/server2/strings_data_source.py
diff --git a/chrome/common/extensions/docs/server2/strings_data_source.py b/chrome/common/extensions/docs/server2/strings_data_source.py
index a602c75c38bc96a767e6029aa731fb2ef239c2b9..b4042bfaa829a506c64340191060d8322cbb10ac 100644
--- a/chrome/common/extensions/docs/server2/strings_data_source.py
+++ b/chrome/common/extensions/docs/server2/strings_data_source.py
@@ -10,8 +10,10 @@ class StringsDataSource(DataSource):
   JSON configuration file.
   '''
   def __init__(self, server_instance, _):
-    self._cache = server_instance.compiled_host_fs_factory.Create(
-        lambda _, strings_json: Parse(strings_json), StringsDataSource)
+    self._cache = server_instance.compiled_fs_factory.Create(
+        server_instance.host_file_system_provider.GetTrunk(),
+        lambda _, strings_json: Parse(strings_json),
+        StringsDataSource)
     self._strings_json_path = server_instance.strings_json_path
 
   def Cron(self):