Docserver: achieve online vs offline (cron vs instance) behaviour at the object

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

Index: chrome/common/extensions/docs/server2/branch_utility.py
diff --git a/chrome/common/extensions/docs/server2/branch_utility.py b/chrome/common/extensions/docs/server2/branch_utility.py
index 633c5f3a6df26ef1bd3c406f93adc4dca8da4c9b..aa460c24822838e71506519b0ec14b5b3d2cab52 100644
--- a/chrome/common/extensions/docs/server2/branch_utility.py
+++ b/chrome/common/extensions/docs/server2/branch_utility.py
@@ -7,16 +7,13 @@ import logging
 import operator
 
 from appengine_wrappers import GetAppVersion
-from object_store_creator import ObjectStoreCreator
 
 class BranchUtility(object):
-  def __init__(self, fetch_url, fetcher, object_store=None):
+  def __init__(self, fetch_url, fetcher, object_store_creator_factory):
     self._fetch_url = fetch_url
     self._fetcher = fetcher
-    if object_store is None:
-      object_store = (ObjectStoreCreator.SharedFactory(GetAppVersion())
-          .Create(BranchUtility).Create())
-    self._object_store = object_store
+    self._object_store = (object_store_creator_factory.Create(BranchUtility)
+        .Create())
 
   @staticmethod
   def GetAllBranchNames():