Add ash SessionStateDelegate

ash/desktop_background/desktop_background_view.cc

Index: ash/desktop_background/desktop_background_view.cc
diff --git a/ash/desktop_background/desktop_background_view.cc b/ash/desktop_background/desktop_background_view.cc
index 35e7d0d683e2a232c681bd614dfb430f95257b4e..6d6e487aacd4bb79297c7be075ac7c041c06fa4d 100644
--- a/ash/desktop_background/desktop_background_view.cc
+++ b/ash/desktop_background/desktop_background_view.cc
@@ -11,8 +11,8 @@
 #include "ash/desktop_background/desktop_background_widget_controller.h"
 #include "ash/desktop_background/user_wallpaper_delegate.h"
 #include "ash/root_window_controller.h"
+#include "ash/session_state_delegate.h"
 #include "ash/shell.h"
-#include "ash/shell_delegate.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/window_animations.h"
@@ -201,8 +201,7 @@ views::Widget* CreateDesktopBackground(aura::RootWindow* root_window,
   // 4. From an empty background, guest user logged in.
   if (wallpaper_delegate->ShouldShowInitialAnimation() ||
       root_window->GetProperty(kAnimatingDesktopController) ||
-      Shell::GetInstance()->delegate()->IsGuestSession() ||
-      Shell::GetInstance()->delegate()->IsUserLoggedIn()) {
+      Shell::GetInstance()->session_state_delegate()->HasActiveUser()) {
     views::corewm::SetWindowVisibilityAnimationTransition(
         desktop_widget->GetNativeView(), views::corewm::ANIMATE_SHOW);
   } else {