Move session length timer into tray bubble.

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/metrics/user_metrics_recorder.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
@@ skipping 135 matching lines @@
     (*it)->DestroyTrayView();
   }
 }
 
 void SystemTray::InitializeTrayItems(SystemTrayDelegate* delegate) {
   TrayBackgroundView::Initialize();
   CreateItems(delegate);
 }
 
 void SystemTray::CreateItems(SystemTrayDelegate* delegate) {
-#if defined(OS_CHROMEOS)
-  AddTrayItem(new TraySessionLengthLimit(this));
-#endif
 #if !defined(OS_WIN)
   // Create user items for each possible user.
   ash::Shell* shell = ash::Shell::GetInstance();
   int maximum_user_profiles =
           shell->session_state_delegate()->GetMaximumNumberOfLoggedInUsers();
   for (int i = 0; i < maximum_user_profiles; i++)
     AddTrayItem(new TrayUser(this, i));
 
   if (maximum_user_profiles > 1) {
     // Add a special double line separator between users and the rest of the
     // menu if more then one user is logged in.
     AddTrayItem(new TrayUserSeparator(this));
   }
 #endif
 
   tray_accessibility_ = new TrayAccessibility(this);
   tray_date_ = new TrayDate(this);
 
 #if defined(OS_CHROMEOS)
+  AddTrayItem(new TraySessionLengthLimit(this));
   AddTrayItem(new TrayEnterprise(this));
   AddTrayItem(new TrayLocallyManagedUser(this));
   AddTrayItem(new TrayIME(this));
   AddTrayItem(tray_accessibility_);
   AddTrayItem(new TrayTracing(this));
   AddTrayItem(new TrayPower(this, message_center::MessageCenter::Get()));
   AddTrayItem(new TrayNetwork(this));
   AddTrayItem(new TrayVPN(this));
   AddTrayItem(new TraySms(this));
   AddTrayItem(new TrayBluetooth(this));
@@ skipping 522 matching lines @@
   system_bubble_.reset();
   // When closing a system bubble with the alternate shelf layout, we need to
   // turn off the active tinting of the shelf.
   if (full_system_tray_menu_) {
     SetDrawBackgroundAsActive(false);
     full_system_tray_menu_ = false;
   }
 }
 
 }  // namespace ash