Uber menu: Place the a11y item just below the keyboard setting

ash/system/tray/system_tray.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/system/tray/system_tray.h"
 
 #include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/shell/panel_window.h"
 #include "ash/shell_window_ids.h"
@@ skipping 159 matching lines @@
   notifier->AddUserObserver(tray_user);
 #if defined(OS_CHROMEOS)
   notifier->AddNetworkObserver(tray_network);
   notifier->AddVpnObserver(tray_vpn);
   notifier->AddSmsObserver(tray_sms);
 #endif
 
   AddTrayItem(tray_logout_button);
   AddTrayItem(tray_user);
   AddTrayItem(tray_ime);
+  AddTrayItem(tray_accessibility);
   AddTrayItem(tray_power);
 #if defined(OS_CHROMEOS)
   AddTrayItem(tray_network);
   AddTrayItem(tray_vpn);
   AddTrayItem(tray_sms);
 #endif
   AddTrayItem(tray_bluetooth);
   AddTrayItem(tray_drive);
   AddTrayItem(tray_locale);
-  AddTrayItem(tray_accessibility);
 #if defined(OS_CHROMEOS)
   AddTrayItem(tray_display);
 #endif
   AddTrayItem(tray_volume);
   AddTrayItem(tray_brightness);
   AddTrayItem(tray_update);
   AddTrayItem(tray_caps_lock);
   AddTrayItem(tray_settings);
   AddTrayItem(tray_date);
 
@@ skipping 383 matching lines @@
         ConvertPointToWidget(this, &point);
         arrow_offset = point.x();
       }
     }
     ShowDefaultViewWithOffset(BUBBLE_CREATE_NEW, arrow_offset);
   }
   return true;
 }
 
 }  // namespace ash