Disable folder UI when app sync is disabled

ui/app_list/views/apps_grid_view.cc

Index: ui/app_list/views/apps_grid_view.cc
diff --git a/ui/app_list/views/apps_grid_view.cc b/ui/app_list/views/apps_grid_view.cc
index d97d6359f75c1c59f5bf696b5f7ddebfc8c06da9..24383e0f5e86fd30d22c2f7a42862fc6f1c4ac7a 100644
--- a/ui/app_list/views/apps_grid_view.cc
+++ b/ui/app_list/views/apps_grid_view.cc
@@ -1993,8 +1993,8 @@ void AppsGridView::OnImplicitAnimationsCompleted() {
 bool AppsGridView::EnableFolderDragDropUI() {
   // Enable drag and drop folder UI only if it is at the app list root level
   // and the switch is on and the target folder can still accept new items.
-  return switches::IsFolderUIEnabled() && !folder_delegate_ &&
-         CanDropIntoTarget(drop_target_);
+  return model_->folders_enabled() && !folder_delegate_ &&
+      CanDropIntoTarget(drop_target_);
 }
 
 bool AppsGridView::CanDropIntoTarget(const Index& drop_target) {