Add ash SessionStateDelegate

ash/wm/workspace/workspace_layout_manager.cc

Index: ash/wm/workspace/workspace_layout_manager.cc
diff --git a/ash/wm/workspace/workspace_layout_manager.cc b/ash/wm/workspace/workspace_layout_manager.cc
index 1b052d2430df4fbfd2323fab58fe8f8d2dd974be..1d4dc622f4748ff4cd10711c9e3567cfaf1f1c59 100644
--- a/ash/wm/workspace/workspace_layout_manager.cc
+++ b/ash/wm/workspace/workspace_layout_manager.cc
@@ -6,6 +6,7 @@
 
 #include "ash/ash_switches.h"
 #include "ash/screen_ash.h"
+#include "ash/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/wm/always_on_top_controller.h"
 #include "ash/wm/base_layout_manager.h"
@@ -288,7 +289,7 @@ void WorkspaceLayoutManager::AdjustWindowSizesForScreenChange(
   // This would happen if the launcher was auto hidden before the login screen
   // was shown and then gets shown when the login screen gets presented.
   if (reason == ADJUST_WINDOW_DISPLAY_INSETS_CHANGED &&
-      Shell::GetInstance()->IsScreenLocked())
+      Shell::GetInstance()->session_state_delegate()->IsScreenLocked())
     return;
   work_area_ = ScreenAsh::GetDisplayWorkAreaBoundsInParent(
       workspace_->window()->parent());