Implement Mojo SyncLoad

content/browser/loader/url_loader_factory_impl.h

Index: content/browser/loader/url_loader_factory_impl.h
diff --git a/content/browser/loader/url_loader_factory_impl.h b/content/browser/loader/url_loader_factory_impl.h
index a54c44bf6c65d350c1b9ed990672af8f2816ad89..6d800d7c166f4501e36bfc3876b420e2d01261fc 100644
--- a/content/browser/loader/url_loader_factory_impl.h
+++ b/content/browser/loader/url_loader_factory_impl.h
@@ -26,6 +26,10 @@ class URLLoaderFactoryImpl final : public mojom::URLLoaderFactory {
                             int32_t request_id,
                             const ResourceRequest& url_request,
                             mojom::URLLoaderClientPtr client) override;
+  void SyncLoad(int32_t routing_id,
+                int32_t request_id,
+                const ResourceRequest& request,
+                const SyncLoadCallback& callback) override;
 
   // Creates a URLLoaderFactoryImpl instance. The instance is held by the
   // StrongBinding in it, so this function doesn't return the instance.