Convert bare pointer to scoped_ptr in net/http

net/http/http_server_properties_manager.cc

Index: net/http/http_server_properties_manager.cc
diff --git a/net/http/http_server_properties_manager.cc b/net/http/http_server_properties_manager.cc
index 11c3cf9db2b50d54f7df8acc65bc2965d619d84c..c48244ce35e5c7912ccef0fd9bc401e6532a4f46 100644
--- a/net/http/http_server_properties_manager.cc
+++ b/net/http/http_server_properties_manager.cc
@@ -248,7 +248,8 @@ HttpServerPropertiesManager::alternative_service_map() const {
   return http_server_properties_impl_->alternative_service_map();
 }
 
-base::Value* HttpServerPropertiesManager::GetAlternativeServiceInfoAsValue()
+scoped_ptr<base::Value>
+HttpServerPropertiesManager::GetAlternativeServiceInfoAsValue()
     const {
   DCHECK(network_task_runner_->RunsTasksOnCurrentThread());
   return http_server_properties_impl_->GetAlternativeServiceInfoAsValue();