PlzNavigate: make StreamPrivate API work

content/browser/loader/navigation_resource_handler.cc

Index: content/browser/loader/navigation_resource_handler.cc
diff --git a/content/browser/loader/navigation_resource_handler.cc b/content/browser/loader/navigation_resource_handler.cc
index 94e046dbf0c74bf8044e6cd93484c3cab38563fa..31667c7c29a66975d1ee350473b2c38313ebf042 100644
--- a/content/browser/loader/navigation_resource_handler.cc
+++ b/content/browser/loader/navigation_resource_handler.cc
@@ -22,8 +22,7 @@ namespace content {
 NavigationResourceHandler::NavigationResourceHandler(
     net::URLRequest* request,
     NavigationURLLoaderImplCore* core)
-    : ResourceHandler(request),
-      core_(core) {
+    : ResourceHandler(request), core_(core) {
   core_->set_resource_handler(this);
   writer_.set_immediate_mode(true);
 }
@@ -76,7 +75,7 @@ bool NavigationResourceHandler::OnResponseStarted(ResourceResponse* response,
   // TODO(davidben): Move the dispatch out of MimeTypeResourceHandler. Perhaps
   // all the way to the UI thread. Downloads, user certificates, etc., should be
   // dispatched at the navigation layer.
-  if (info->IsDownload() || info->is_stream())
+  if (info->IsDownload())
     return true;
 
   StreamContext* stream_context =