NOT FOR COMMIT: POC of using AuthenticatingURLLoader in Sky

sky/shell/ui/engine.cc

Index: sky/shell/ui/engine.cc
diff --git a/sky/shell/ui/engine.cc b/sky/shell/ui/engine.cc
index 04ab9ec6137f7c9e6457f58b0239349d4577b234..8003863b82c71f1779bbc1bb722c74843674eb75 100644
--- a/sky/shell/ui/engine.cc
+++ b/sky/shell/ui/engine.cc
@@ -59,7 +59,12 @@ void Engine::Init() {
   service_provider_ = CreateServiceProvider(config_.service_provider_context);
   mojo::NetworkServicePtr network_service;
   mojo::ConnectToService(service_provider_.get(), &network_service);
-  platform_impl_.reset(new PlatformImpl(network_service.Pass()));
+
+  // TODO(blundell): Will have to either bundle in AuthenticatingURLLoader/
+  // AuthenticationService to use them in sky shell, or fall back to using
+  // NetworkService within the sky engine if the 
+  // AuthenticatingURLLoaderFactory is null.
+  platform_impl_.reset(new PlatformImpl(network_service.Pass(), nullptr));
 
   blink::initialize(platform_impl_.get());
 }