Add policy domain for signin screen apps

chrome/browser/policy/test/local_policy_test_server.cc

 // Copyright (c) 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/policy/test/local_policy_test_server.h"
 
 #include <ctype.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 113 matching lines @@
   client_dict->SetString(kClientStateKeyDeviceToken, dm_token);
   client_dict->SetString(kClientStateKeyMachineName, std::string());
   client_dict->SetString(kClientStateKeyMachineId, std::string());
 
   // Allow all policy types for now.
   std::unique_ptr<base::ListValue> types(new base::ListValue());
   types->AppendString(dm_protocol::kChromeDevicePolicyType);
   types->AppendString(dm_protocol::kChromeUserPolicyType);
   types->AppendString(dm_protocol::kChromePublicAccountPolicyType);
   types->AppendString(dm_protocol::kChromeExtensionPolicyType);
+  types->AppendString(dm_protocol::kChromeSigninExtensionPolicyType);
 
   client_dict->Set(kClientStateKeyAllowedPolicyTypes, types.release());
   clients_.Set(dm_token, client_dict.release());
 }
 
 bool LocalPolicyTestServer::UpdatePolicy(const std::string& type,
                                          const std::string& entity_id,
                                          const std::string& policy) {
   CHECK(server_data_dir_.IsValid());
 
@@ skipping 114 matching lines @@
 std::string LocalPolicyTestServer::GetSelector(const std::string& type,
                                                const std::string& entity_id) {
   std::string selector = type;
   if (!entity_id.empty())
     selector = base::StringPrintf("%s/%s", type.c_str(), entity_id.c_str());
   std::replace_if(selector.begin(), selector.end(), IsUnsafeCharacter, '_');
   return selector;
 }
 
 }  // namespace policy