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

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

 # Copyright 2013 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.
 
 from HTMLParser import HTMLParser
 import mimetypes
 import logging
 import os
 
 from compiled_file_system import SingleFile
@@ skipping 67 matching lines @@
     # Check for a zip file first, if zip is enabled.
     if self._directory_zipper and ext == '.zip':
       zip_future = self._directory_zipper.Zip(base)
       return Future(delegate=Gettable(
           lambda: ContentAndType(zip_future.Get(), 'application/zip')))
 
     return self._content_cache.GetFromFile(path, binary=True)
 
   def Cron(self):
     # Running Refresh() on the file system is enough to pull GitHub content,
-    # which is all we need for now.
-    self.file_system.Refresh().Get()
+    # which is all we need for now while the full render-every-page cron step
+    # is in effect.
+    # TODO(kalman): Walk over the whole filesystem and compile the content.
+    return self.file_system.Refresh()