Add SessionStateObserver with ActiveUserChanged()

chrome/browser/ui/ash/chrome_shell_delegate.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 "chrome/browser/ui/ash/chrome_shell_delegate.h"
 
 #include "ash/ash_switches.h"
 #include "ash/host/root_window_host_factory.h"
 #include "ash/launcher/launcher_types.h"
 #include "ash/magnifier/magnifier_constants.h"
@@ skipping 11 matching lines @@
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/sessions/tab_restore_service_factory.h"
 #include "chrome/browser/sessions/tab_restore_service_observer.h"
 #include "chrome/browser/ui/app_list/app_list_view_delegate.h"
 #include "chrome/browser/ui/ash/app_list/app_list_controller_ash.h"
 #include "chrome/browser/ui/ash/ash_keyboard_controller_proxy.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/launcher_context_menu.h"
-#include "chrome/browser/ui/ash/session_state_delegate.h"
 #include "chrome/browser/ui/ash/user_action_handler.h"
 #include "chrome/browser/ui/ash/window_positioner.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/extensions/native_app_window.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/immersive_fullscreen_configuration.h"
@@ skipping 209 matching lines @@
   // TODO(oshima): This is currently broken with multiple launchers.
   // Refactor so that there is just one launcher delegate in the
   // shell.
   if (!launcher_delegate_) {
     launcher_delegate_ = ChromeLauncherController::CreateInstance(NULL, model);
     launcher_delegate_->Init();
   }
   return launcher_delegate_;
 }
 
-ash::SessionStateDelegate* ChromeShellDelegate::CreateSessionStateDelegate() {
-  return new SessionStateDelegate;
-}
-
 aura::client::UserActionClient* ChromeShellDelegate::CreateUserActionClient() {
   return new UserActionHandler;
 }
 
 void ChromeShellDelegate::OpenFeedbackPage() {
   chrome::OpenFeedbackDialog(GetTargetBrowser());
 }
 
 void ChromeShellDelegate::RecordUserMetricsAction(
     ash::UserMetricsAction action) {
@@ skipping 165 matching lines @@
     return browser;
   return chrome::FindOrCreateTabbedBrowser(
       ProfileManager::GetDefaultProfileOrOffTheRecord(),
       chrome::HOST_DESKTOP_TYPE_ASH);
 }
 
 keyboard::KeyboardControllerProxy*
     ChromeShellDelegate::CreateKeyboardControllerProxy() {
   return new AshKeyboardControllerProxy();
 }