ash: Use SessionController instead of SessionStateDelegate

ash/common/wallpaper/wallpaper_view.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/common/wallpaper/wallpaper_view.h"
 
-#include "ash/common/session/session_state_delegate.h"
+#include "ash/common/session/session_controller.h"
 #include "ash/common/wallpaper/wallpaper_controller.h"
 #include "ash/common/wallpaper/wallpaper_delegate.h"
 #include "ash/common/wallpaper/wallpaper_widget_controller.h"
 #include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ui/display/display.h"
 #include "ui/display/manager/managed_display_info.h"
@@ skipping 197 matching lines @@
   RootWindowController* root_window_controller =
       root_window->GetRootWindowController();
 
   // Enable wallpaper transition for the following cases:
   // 1. Initial(OOBE) wallpaper animation.
   // 2. Wallpaper fades in from a non empty background.
   // 3. From an empty background, chrome transit to a logged in user session.
   // 4. From an empty background, guest user logged in.
   if (wallpaper_delegate->ShouldShowInitialAnimation() ||
       root_window_controller->animating_wallpaper_widget_controller() ||
-      WmShell::Get()->GetSessionStateDelegate()->NumberOfLoggedInUsers()) {
+      WmShell::Get()->session_controller()->NumberOfLoggedInUsers()) {
     wallpaper_window->SetVisibilityAnimationTransition(::wm::ANIMATE_SHOW);
     int duration_override = wallpaper_delegate->GetAnimationDurationOverride();
     if (duration_override) {
       wallpaper_window->SetVisibilityAnimationDuration(
           base::TimeDelta::FromMilliseconds(duration_override));
     }
   } else {
     // Disable animation if transition to login screen from an empty background.
     wallpaper_window->SetVisibilityAnimationTransition(::wm::ANIMATE_NONE);
   }
 
   WmWindow* container = root_window->GetChildByShellWindowId(container_id);
   wallpaper_widget->SetBounds(container->GetBounds());
   return wallpaper_widget;
 }
 
 }  // namespace ash