Implement ServiceWorkerFetchDispatcher::MaybeStartNavigationPreload().

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index f0e65706b88381decf2063ab18391153f6d6bd80..ba51fd7d09aeea1583c52908a4f4d26b1b95e380 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -77,7 +77,8 @@ class StoragePartitionImpl;
 
 namespace mojom {
 class StoragePartitionService;
-}
+class URLLoaderFactory;
+}  // namespace mojom
 
 typedef base::Thread* (*RendererMainThreadFactoryFunction)(
     const InProcessChildThreadParams& params);
@@ -364,6 +365,11 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // GpuSwitchingObserver implementation.
   void OnGpuSwitched() override;
 
+  // Creates a mojom::URLLoaderFactory interface by passing
+  // URLLoaderFactoryRequest.
+  void CreateURLLoaderFactory(
+      mojo::InterfaceRequest<mojom::URLLoaderFactory> request);
+
 #if defined(ENABLE_WEBRTC)
   void OnRegisterAecDumpConsumer(int id);
   void OnUnregisterAecDumpConsumer(int id);