Fix crash on Enrollment screen.

chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc

Index: chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc
diff --git a/chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc b/chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc
index 50432bd7a11bb0ba49737ce36936be785a7fac39..50f9670df8953f1b67de8bd3e9e874130293d520 100644
--- a/chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc
+++ b/chrome/browser/chromeos/login/ui/captive_portal_window_browsertest.cc
@@ -218,18 +218,17 @@ IN_PROC_BROWSER_TEST_F(CaptivePortalWindowCtorDtorTest, OpenPortalDialog) {
   ASSERT_TRUE(host);
   OobeUI* oobe = host->GetOobeUI();
   ASSERT_TRUE(oobe);
-  NetworkErrorView* network_error_view = oobe->GetNetworkErrorView();
-  ASSERT_TRUE(network_error_view);
 
   // Error screen asks portal detector to change detection strategy.
-  ErrorScreen error_screen(NULL, network_error_view);
+  ErrorScreen* error_screen = oobe->GetErrorScreen();
+  ASSERT_TRUE(error_screen);
 
   ASSERT_EQ(PortalDetectorStrategy::STRATEGY_ID_LOGIN_SCREEN, strategy_id());
   network_portal_detector()->NotifyObserversForTesting();
   OobeScreenWaiter(OobeDisplay::SCREEN_ERROR_MESSAGE).Wait();
   ASSERT_EQ(PortalDetectorStrategy::STRATEGY_ID_ERROR_SCREEN, strategy_id());
 
-  error_screen.ShowCaptivePortal();
+  error_screen->ShowCaptivePortal();
 }
 
 }  // namespace chromeos