Network service: avoid requesting a new URLLoaderFactory for each NavigationURLLoaderNetworkService.

content/browser/loader/navigation_url_loader_network_service.h

Index: content/browser/loader/navigation_url_loader_network_service.h
diff --git a/content/browser/loader/navigation_url_loader_network_service.h b/content/browser/loader/navigation_url_loader_network_service.h
index f284a5723361b8680a69419f4cf2af2395122e2f..1130619bc184ba2644ebd2b8c9d744ee75aaf5a9 100644
--- a/content/browser/loader/navigation_url_loader_network_service.h
+++ b/content/browser/loader/navigation_url_loader_network_service.h
@@ -40,7 +40,8 @@ class NavigationURLLoaderNetworkService : public NavigationURLLoader,
       NavigationURLLoaderDelegate* delegate);
   ~NavigationURLLoaderNetworkService() override;
 
-  // Overrides the URLLoaderFactory for the next request.
+  // Overrides the URLLoaderFactory for subsequent requests. Passing a null
+  // pointer will restore the default behavior.
   static CONTENT_EXPORT void OverrideURLLoaderFactoryForTesting(
       mojom::URLLoaderFactoryPtr url_loader_factory);
 
@@ -72,9 +73,10 @@ class NavigationURLLoaderNetworkService : public NavigationURLLoader,
   void ConnectURLLoaderFactory(
       std::unique_ptr<service_manager::Connector> connector);
 
+  mojom::URLLoaderFactory& GetURLLoaderFactory();
+
   NavigationURLLoaderDelegate* delegate_;
 
-  mojom::URLLoaderFactoryPtr url_loader_factory_;
   mojo::Binding<mojom::URLLoaderClient> binding_;
   mojom::URLLoaderAssociatedPtr url_loader_associated_ptr_;
   scoped_refptr<ResourceResponse> response_;