Adding new user menu section to the SystemTrayMenu & refactoring of user access

ash/system/user/login_status.cc

Index: ash/system/user/login_status.cc
diff --git a/ash/system/user/login_status.cc b/ash/system/user/login_status.cc
index 77fc04a70b8f1abf739e2668fd1a7ec94733f4dc..515a1118853a570ac8821c3efee70a0d5ffe2c35 100644
--- a/ash/system/user/login_status.cc
+++ b/ash/system/user/login_status.cc
@@ -4,6 +4,8 @@
 
 #include "ash/system/user/login_status.h"
 
+#include "ash/session_state_delegate.h"
+#include "ash/shell.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "grit/ash_strings.h"
@@ -26,7 +28,11 @@ base::string16 GetLocalizedSignOutStringForStatus(LoginStatus status,
       message_id = IDS_ASH_STATUS_TRAY_EXIT_PUBLIC;
       break;
     default:
-      message_id = IDS_ASH_STATUS_TRAY_SIGN_OUT;
+      if (1 < ash::Shell::GetInstance()->session_state_delegate()->

[James Cook, 2013/05/17 14:03:25]

nit: chromium-style prefers "foo == 1" to "1 == foo", so I would suggest
"NumberOfLoggedInUsers() > 1"

http://www.chromium.org/developers/coding-style#Code_Formatting

[Mr4D (OOO till 08-26), 2013/05/17 16:26:40]

Done.

+                  NumberOfLoggedInUsers())
+        message_id = IDS_ASH_STATUS_TRAY_SIGN_OUT_ALL;
+      else
+        message_id = IDS_ASH_STATUS_TRAY_SIGN_OUT;
       break;
   }
   base::string16 message =