cros webui: Fix status tray visibility

Was broken on multiprofile-signin screen in CL:1710000

Bug: 987588
Change-Id: Icb0330b4e427e56215796a7aea21c7fcb5724e1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1730451Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683179}

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

@@ -491,10 +491,9 @@ void LoginDisplayHostWebUI::OnFinalize() {
 }
 
 void LoginDisplayHostWebUI::SetStatusAreaVisible(bool visible) {
-  if (!login_view_)
-    status_area_saved_visibility_ = visible;
-  else
-    login_view_->SetStatusAreaVisible(visible);
+  status_area_saved_visibility_ = visible;
+  if (login_view_)
+    login_view_->SetStatusAreaVisible(status_area_saved_visibility_);
 }
 
 void LoginDisplayHostWebUI::OnOobeConfigurationChanged() {