Enable device disabling during normal operation

chrome/browser/chromeos/login/screens/mock_device_disabled_screen_actor.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_DEVICE_DISABLED_SCREEN_ACTOR_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_DEVICE_DISABLED_SCREEN_ACTOR_H_
 
 #include "chrome/browser/chromeos/login/screens/device_disabled_screen_actor.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace chromeos {
 
 class MockDeviceDisabledScreenActor : public DeviceDisabledScreenActor {
  public:
   MockDeviceDisabledScreenActor();
   ~MockDeviceDisabledScreenActor() override;
 
   void SetDelegate(Delegate* delegate) override;
 
   MOCK_METHOD1(Show, void(const std::string&));
   MOCK_METHOD0(Hide, void());
+  MOCK_METHOD1(UpdateMessage, void(const std::string& message));
 
  private:
   MOCK_METHOD1(MockSetDelegate, void(Delegate* delegate));
 
   Delegate* delegate_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_DEVICE_DISABLED_SCREEN_ACTOR_H_