Add source column to chrome://policy showing the origins of policies.

chrome/browser/chromeos/policy/cloud_external_data_manager_base_test_util.cc

 // 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.
 
 #include "chrome/browser/chromeos/policy/cloud_external_data_manager_base_test_util.h"
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
@@ skipping 27 matching lines @@
   return metadata.Pass();
 }
 
 void SetExternalDataReference(CloudPolicyCore* core,
                               const std::string& policy,
                               scoped_ptr<base::DictionaryValue> metadata) {
   CloudPolicyStore* store = core->store();
   ASSERT_TRUE(store);
   PolicyMap policy_map;
   policy_map.Set(policy,
-                 POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
+                 POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER, POLICY_SOURCE_CLOUD,
                  metadata.release(),
                  new ExternalDataFetcher(store->external_data_manager(),
                                          policy));
   store->SetPolicyMapForTesting(policy_map);
 }
 
 }  // namespace test
 }  // namespace policy