LibWeb: Implement 'Is url potentially trustworthy?' AO

Author: https://github.com/linusg
Commit: 6c1a9b28f1
Pull-request: https://github.com/SerenityOS/serenity/pull/15795
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/davidot ✅

Userland/Libraries/LibWeb/SecureContexts/AbstractOperations.h

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <AK/Forward.h>
 #include <LibWeb/Forward.h>
 
 namespace Web::SecureContexts {
@@ -16,5 +17,6 @@ enum class Trustworthiness {
 };
 
 [[nodiscard]] Trustworthiness is_origin_potentially_trustworthy(HTML::Origin const&);
+[[nodiscard]] Trustworthiness is_url_potentially_trustworthy(AK::URL const&);
 
 }