Add a screen to migrate filesystem encryption from eCryptfs to ext4 crypto.

chrome/browser/chromeos/login/wizard_controller_browsertest.cc

Index: chrome/browser/chromeos/login/wizard_controller_browsertest.cc
diff --git a/chrome/browser/chromeos/login/wizard_controller_browsertest.cc b/chrome/browser/chromeos/login/wizard_controller_browsertest.cc
index fc2123da0b0bd6a5b4d57ec5bca2ff3e2504a05c..76ee0555af60b54c581044adb8e8e8b8be1d91ab 100644
--- a/chrome/browser/chromeos/login/wizard_controller_browsertest.cc
+++ b/chrome/browser/chromeos/login/wizard_controller_browsertest.cc
@@ -1337,7 +1337,10 @@ IN_PROC_BROWSER_TEST_F(WizardControllerCellularFirstTest, CellularFirstFlow) {
 
 // TODO(khmel): Add tests for ARC OptIn flow.
 // http://crbug.com/651144
-static_assert(static_cast<int>(ScreenExitCode::EXIT_CODES_COUNT) == 25,
+
+// TODO(fukino): Add tests for encryption migration UI.
+// http://crbug.com/706017
+static_assert(static_cast<int>(ScreenExitCode::EXIT_CODES_COUNT) == 27,
               "tests for new control flow are missing");
 
 }  // namespace chromeos