Tray elements behave appropriately on the multiple signin screen (more like lock screen)

ash/system/chromeos/tray_display.cc

Index: ash/system/chromeos/tray_display.cc
diff --git a/ash/system/chromeos/tray_display.cc b/ash/system/chromeos/tray_display.cc
index d1fca840b306824d4b9d3f5caa81f5400a5f7b7c..ac32002cab11e6841abbcd3bd99a98135d20250d 100644
--- a/ash/system/chromeos/tray_display.cc
+++ b/ash/system/chromeos/tray_display.cc
@@ -6,6 +6,7 @@
 
 #include "ash/display/display_controller.h"
 #include "ash/display/display_manager.h"
+#include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/system/system_notifier.h"
 #include "ash/system/tray/actionable_view.h"
@@ -110,6 +111,10 @@ base::string16 GetAllDisplayInfo() {
 void OpenSettings() {
   // switch is intentionally introduced without default, to cause an error when
   // a new type of login status is introduced.
+  if (ash::Shell::GetInstance()->session_state_delegate()->GetSessionState() ==
+      ash::SessionStateDelegate::SESSION_STATE_LOGIN_SECONDARY)
+    return;
+
   switch (Shell::GetInstance()->system_tray_delegate()->GetUserLoginStatus()) {
     case user::LOGGED_IN_NONE:
     case user::LOGGED_IN_LOCKED: