ui: Cleanup class/struct forward declarations

extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc

Index: extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc
diff --git a/extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc b/extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc
index 3366ee67ec7db9507bd6af8a06da63eb466e30d6..84e25c27f27e4ae67a30d1ed5554d5206ba831ec 100644
--- a/extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc
+++ b/extensions/browser/guest_view/web_view/web_ui/web_ui_url_fetcher.cc
@@ -32,7 +32,7 @@ void WebUIURLFetcher::Start() {
   fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
 
   content::AssociateURLFetcherWithRenderFrame(
-      fetcher_.get(), url_, render_process_id_, render_frame_id_);
+      fetcher_.get(), url::Origin(url_), render_process_id_, render_frame_id_);
   fetcher_->Start();
 }