ash uber tray: Allow customizing each item depending on whether the user is logged in or not.

ash/system/settings/tray_settings.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/settings/tray_settings.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
@@ skipping 55 matching lines @@
 
 }  // namespace
 
 namespace ash {
 namespace internal {
 
 TraySettings::TraySettings() {}
 
 TraySettings::~TraySettings() {}
 
-views::View* TraySettings::CreateTrayView() {
+views::View* TraySettings::CreateTrayView(user::LoginStatus status) {
   return NULL;
 }
 
-views::View* TraySettings::CreateDefaultView() {
+views::View* TraySettings::CreateDefaultView(user::LoginStatus status) {
+  if (status == user::LOGGED_IN_NONE)
+    return NULL;
+
   views::View* container = new views::View;
   views::BoxLayout* layout =
       new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 5);
   layout->set_spread_blank_space(true);
   container->SetLayoutManager(layout);
 
   views::View* settings = new SettingsView;
   container->AddChildView(settings);
   return container;
 }
 
-views::View* TraySettings::CreateDetailedView() {
+views::View* TraySettings::CreateDetailedView(user::LoginStatus status) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 void TraySettings::DestroyTrayView() {
 }
 
 void TraySettings::DestroyDefaultView() {
 }
 
 void TraySettings::DestroyDetailedView() {
 }
 
 }  // namespace internal
 }  // namespace ash