Implement ServiceWorkerFetchDispatcher::MaybeStartNavigationPreload().

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 9f220861106242e97aa93d633380100cbd5c7824..a58c4fafc9604bb4acadf002a16235c964ff401c 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1156,7 +1156,9 @@ void RenderProcessHostImpl::CreateMessageFilters() {
 
   scoped_refptr<ServiceWorkerDispatcherHost> service_worker_filter =
       new ServiceWorkerDispatcherHost(
-          GetID(), message_port_message_filter_.get(), resource_context);
+          GetID(), message_port_message_filter_.get(), resource_context,
+          base::Bind(&RenderProcessHostImpl::CreateURLLoaderFactory,
+                     weak_factory_.GetWeakPtr()));
   service_worker_filter->Init(
       storage_partition_impl_->GetServiceWorkerContext());
   AddFilter(service_worker_filter.get());
@@ -3000,4 +3002,9 @@ void RenderProcessHostImpl::OnMojoError(int render_process_id,
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
+void RenderProcessHostImpl::CreateURLLoaderFactory(
+    mojo::InterfaceRequest<mojom::URLLoaderFactory> request) {
+  URLLoaderFactoryImpl::Create(resource_message_filter_, std::move(request));
+}
+
 }  // namespace content