[login_manager] Code to add the owner to the whitelist in a device policy

mock_device_policy.h

-// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef LOGIN_MANAGER_MOCK_DEVICE_POLICY_H_
 #define LOGIN_MANAGER_MOCK_DEVICE_POLICY_H_
 
 #include "login_manager/device_policy.h"
 
 #include <unistd.h>
 #include <gmock/gmock.h>
 
 namespace login_manager {
 class MockDevicePolicy : public DevicePolicy {
  public:
   MockDevicePolicy() : DevicePolicy(FilePath("")) {}
   virtual ~MockDevicePolicy() {}
   MOCK_METHOD0(LoadOrCreate, bool(void));
   MOCK_METHOD0(Persist, bool(void));
-  MOCK_CONST_METHOD1(Get, bool(std::string*));
+  MOCK_CONST_METHOD0(Get, const enterprise_management::PolicyFetchResponse&());
+  MOCK_CONST_METHOD1(SerializeToString, bool(std::string*));
   MOCK_METHOD1(Set, void(const enterprise_management::PolicyFetchResponse&));
 };
 }  // namespace login_manager
 
 #endif  // LOGIN_MANAGER_MOCK_DEVICE_POLICY_H_