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

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

 # Copyright (c) 2012 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.
 
 import json
 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):
     self._fetch_url = fetch_url
     self._fetcher = fetcher
     if object_store is None:
-      object_store = ObjectStoreCreator(BranchUtility).Create()
+      object_store = (ObjectStoreCreator.SharedFactory(GetAppVersion())
+          .Create(BranchUtility).Create())
     self._object_store = object_store
 
   @staticmethod
   def GetAllBranchNames():
     return ['stable', 'beta', 'dev', 'trunk']
 
   def GetAllBranchNumbers(self):
     return [(branch, self.GetBranchNumberForChannelName(branch))
             for branch in BranchUtility.GetAllBranchNames()]
 
@@ skipping 43 matching lines @@
         else:
           branch_numbers[branch] += 1
 
     sorted_branches = sorted(branch_numbers.iteritems(),
                              None,
                              operator.itemgetter(1),
                              True)
     self._object_store.Set(channel_name, sorted_branches[0][0])
 
     return sorted_branches[0][0]