cros: Move BaseScreenDelegate::ExitCodes into separate file, ScreenExitCode.

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

 // Copyright (c) 2012 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_BASE_SCREEN_DELEGATE_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_BASE_SCREEN_DELEGATE_H_
 
 #include <string>
 
 #include "chrome/browser/chromeos/login/screens/base_screen.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace chromeos {
 
 // Interface that handles notifications received from any of login wizard
 // screens.
 class MockBaseScreenDelegate : public BaseScreenDelegate {
  public:
   MockBaseScreenDelegate();
   virtual ~MockBaseScreenDelegate();
 
   MOCK_METHOD3(OnExit,
-               void(BaseScreen&, ExitCodes, const ::login::ScreenContext*));
+               void(BaseScreen&,
+                    ScreenExitCode,
+                    const ::login::ScreenContext*));
   MOCK_METHOD0(ShowCurrentScreen, void());
   MOCK_METHOD0(GetErrorScreen, ErrorScreen*());
   MOCK_METHOD0(ShowErrorScreen, void());
   MOCK_METHOD1(HideErrorScreen, void(BaseScreen*));
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_MOCK_BASE_SCREEN_DELEGATE_H_