ScreenObserver is renamed to BaseScreenDelegate.

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

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_ERROR_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_ERROR_SCREEN_H_
 
 #include "chrome/browser/chromeos/login/screens/error_screen.h"
 #include "chrome/browser/chromeos/login/screens/error_screen_actor.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace chromeos {
 
 class MockErrorScreen : public ErrorScreen {
  public:
-  MockErrorScreen(ScreenObserver* screen_observer, ErrorScreenActor* actor);
+  MockErrorScreen(BaseScreenDelegate* base_screen_delegate,
+                  ErrorScreenActor* actor);
   virtual ~MockErrorScreen();
 };
 
 class MockErrorScreenActor : public ErrorScreenActor {
  public:
   MockErrorScreenActor();
   virtual ~MockErrorScreenActor();
 
   MOCK_METHOD1(SetDelegate, void(ErrorScreenActorDelegate* delegate));
   MOCK_METHOD2(Show, void(OobeDisplay::Screen parent_screen,
                           base::DictionaryValue* params));
   MOCK_METHOD3(Show, void(OobeDisplay::Screen parent_screen,
                           base::DictionaryValue* params,
                           const base::Closure& on_hide));
   MOCK_METHOD0(Hide, void(void));
   MOCK_METHOD0(FixCaptivePortal, void(void));
   MOCK_METHOD0(ShowCaptivePortal, void(void));
   MOCK_METHOD0(HideCaptivePortal, void(void));
   MOCK_METHOD1(SetUIState, void(ErrorScreen::UIState ui_state));
   MOCK_METHOD2(SetErrorState, void(ErrorScreen::ErrorState error_state,
                                    const std::string& network));
   MOCK_METHOD1(AllowGuestSignin, void(bool allowed));
   MOCK_METHOD1(AllowOfflineLogin, void(bool allowed));
   MOCK_METHOD1(ShowConnectingIndicator, void(bool show));
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_ERROR_SCREEN_H_