Revert auto-hide-invisible mode for ARC++

chrome/browser/chromeos/login/lock/screen_locker.cc

Index: chrome/browser/chromeos/login/lock/screen_locker.cc
diff --git a/chrome/browser/chromeos/login/lock/screen_locker.cc b/chrome/browser/chromeos/login/lock/screen_locker.cc
index 5bfe1214e47fb936d3d262504565bd25fc8a05f5..5b897a931da42912cc71ff07461e409cdc053e8f 100644
--- a/chrome/browser/chromeos/login/lock/screen_locker.cc
+++ b/chrome/browser/chromeos/login/lock/screen_locker.cc
@@ -430,10 +430,8 @@ void ScreenLocker::Show() {
   // visible while in fullscreen because the shelf makes it harder for a web
   // page or app to mimick the lock screen.
   ash::wm::WindowState* active_window_state = ash::wm::GetActiveWindowState();
-
   if (active_window_state && active_window_state->IsFullscreen() &&
-      active_window_state->shelf_mode_in_fullscreen() !=
-          ash::wm::WindowState::SHELF_AUTO_HIDE_VISIBLE) {
+      active_window_state->hide_shelf_when_fullscreen()) {
     const ash::wm::WMEvent event(ash::wm::WM_EVENT_TOGGLE_FULLSCREEN);
     active_window_state->OnWMEvent(&event);
   }