Docserver: Make the hand-written Cron methods run first rather than last, since

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

Index: chrome/common/extensions/docs/server2/template_data_source.py
diff --git a/chrome/common/extensions/docs/server2/template_data_source.py b/chrome/common/extensions/docs/server2/template_data_source.py
index 934569410eff521bcf33a16ccc63c974622a263d..1a26803732936ccf167bbe93ab8083d5af919472 100644
--- a/chrome/common/extensions/docs/server2/template_data_source.py
+++ b/chrome/common/extensions/docs/server2/template_data_source.py
@@ -9,6 +9,7 @@ import traceback
 from data_source import DataSource
 from docs_server_utils import FormatKey
 from file_system import FileNotFoundError
+from future import Future
 from svn_constants import PRIVATE_TEMPLATE_PATH
 
 
@@ -32,4 +33,4 @@ class TemplateDataSource(DataSource):
   def Cron(self):
     # TODO(kalman): Implement this; probably by finding all files that can be
     # compiled to templates underneath |self._partial_dir| and compiling them.
-    pass
+    return Future(value=())