Move URL Loader creation to a separate factory object.

mojo/shell/application_manager.h

Index: mojo/shell/application_manager.h
diff --git a/mojo/shell/application_manager.h b/mojo/shell/application_manager.h
index 3512e80becfda0c0a166d7d61781ba16dcd313e4..9581ac5eaeea5df535700f112cda8a661e094b07 100644
--- a/mojo/shell/application_manager.h
+++ b/mojo/shell/application_manager.h
@@ -15,7 +15,7 @@
 #include "mojo/application/public/interfaces/service_provider.mojom.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/services/network/public/interfaces/network_service.mojom.h"
+#include "mojo/services/network/public/interfaces/url_loader_factory.mojom.h"
 #include "mojo/shell/application_loader.h"
 #include "mojo/shell/fetcher.h"
 #include "mojo/shell/identity.h"
@@ -242,7 +242,7 @@ class ApplicationManager {
   URLToNativeOptionsMap url_to_native_options_;
 
   base::SequencedWorkerPool* blocking_pool_;
-  NetworkServicePtr network_service_;
+  URLLoaderFactoryPtr url_loader_factory_;
   MimeTypeToURLMap mime_type_to_url_;
   ScopedVector<NativeRunner> native_runners_;
   bool disable_cache_;