Refactor the devserver to make it easier to control caching

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

Index: chrome/common/extensions/docs/server2/reference_resolver_test.py
diff --git a/chrome/common/extensions/docs/server2/reference_resolver_test.py b/chrome/common/extensions/docs/server2/reference_resolver_test.py
index 0050a41102444dd994304b1670facf1e4ad17f56..b366b48a1c9bc9a39d05f9e8511ea66f8edb5ba2 100755
--- a/chrome/common/extensions/docs/server2/reference_resolver_test.py
+++ b/chrome/common/extensions/docs/server2/reference_resolver_test.py
@@ -11,6 +11,7 @@ import unittest
 from file_system import FileNotFoundError
 from in_memory_object_store import InMemoryObjectStore
 from reference_resolver import ReferenceResolver
+from test_object_store import TestObjectStore
 
 class FakeAPIDataSource(object):
   def __init__(self, json_data):
@@ -37,7 +38,7 @@ class APIDataSourceTest(unittest.TestCase):
         json.loads(self._ReadLocalFile('fake_data_source.json')))
     resolver = ReferenceResolver(data_source,
                                  data_source,
-                                 InMemoryObjectStore(''))
+                                 TestObjectStore('test'))
     self.assertEqual({
       'href': 'foo.html',
       'text': 'foo',