Remove raw base::DictionaryValue::Set in //extensions

extensions/browser/api/app_runtime/app_runtime_api.cc

Index: extensions/browser/api/app_runtime/app_runtime_api.cc
diff --git a/extensions/browser/api/app_runtime/app_runtime_api.cc b/extensions/browser/api/app_runtime/app_runtime_api.cc
index b1093686210de1bdd487efd5403b9f44a81ea4d4..aeb5775b87f329e87f25afc6fe086dc9ca17f5cf 100644
--- a/extensions/browser/api/app_runtime/app_runtime_api.cc
+++ b/extensions/browser/api/app_runtime/app_runtime_api.cc
@@ -191,7 +191,7 @@ void AppRuntimeEventRouter::DispatchOnLaunchedEventWithFileEntries(
     launch_item->SetBoolean("isDirectory", entries[i].is_directory);
     items->Append(std::move(launch_item));
   }
-  launch_data->Set("items", items.release());
+  launch_data->Set("items", std::move(items));
   DispatchOnLaunchedEventImpl(extension->id(), source_enum,
                               std::move(launch_data), context);
 }