Devserver: have a separate ObjectStore namespace (both memcache and datastore)

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

Index: chrome/common/extensions/docs/server2/github_file_system.py
diff --git a/chrome/common/extensions/docs/server2/github_file_system.py b/chrome/common/extensions/docs/server2/github_file_system.py
index adbef9ed6f76cdaa9016d271e20553ae1ceb66d3..65819a983f7e6b0bea626dda031061f11c4953fe 100644
--- a/chrome/common/extensions/docs/server2/github_file_system.py
+++ b/chrome/common/extensions/docs/server2/github_file_system.py
@@ -7,7 +7,7 @@ import logging
 import os
 
 import appengine_blobstore as blobstore
-from appengine_wrappers import urlfetch
+from appengine_wrappers import GetAppVersion, urlfetch
 from file_system import FileSystem, StatInfo
 from future import Future
 from object_store_creator import ObjectStoreCreator
@@ -63,7 +63,8 @@ class GithubFileSystem(FileSystem):
   """
   def __init__(self, fetcher, blobstore):
     self._fetcher = fetcher
-    self._stat_object_store = ObjectStoreCreator(GithubFileSystem).Create()
+    self._stat_object_store = (ObjectStoreCreator.SharedFactory(GetAppVersion())
+        .Create(GithubFileSystem).Create())
     self._blobstore = blobstore
     self._version = None
     self._GetZip(self.Stat(ZIP_KEY).version)