LibWeb: Report if anything is delaying load event, not the count

Some elements that delay the load event are more complicated than a
simple count will allow for. We'll implement those in a bit!

Userland/Libraries/LibWeb/DOM/Document.cpp

@@ -2384,6 +2384,16 @@ void Document::decrement_number_of_things_delaying_the_load_event(Badge<Document
         page->client().page_did_update_resource_count(m_number_of_things_delaying_the_load_event);
 }
 
+bool Document::anything_is_delaying_the_load_event() const
+{
+    if (m_number_of_things_delaying_the_load_event > 0)
+        return true;
+
+    // FIXME: Track down all the things that are supposed to delay the load event.
+
+    return false;
+}
+
 void Document::invalidate_stacking_context_tree()
 {
     if (auto* paintable_box = this->paintable_box())

Userland/Libraries/LibWeb/DOM/Document.h

@@ -365,7 +365,7 @@ public:
 
     [[nodiscard]] JS::GCPtr<HTML::Location> location();
 
-    size_t number_of_things_delaying_the_load_event() const { return m_number_of_things_delaying_the_load_event; }
+    bool anything_is_delaying_the_load_event() const;
     void increment_number_of_things_delaying_the_load_event(Badge<DocumentLoadEventDelayer>);
     void decrement_number_of_things_delaying_the_load_event(Badge<DocumentLoadEventDelayer>);
 

Userland/Libraries/LibWeb/HTML/Navigable.h

@@ -64,6 +64,7 @@ public:
     void set_closing(bool value) { m_closing = value; }
 
     void set_delaying_load_events(bool value);
+    bool is_delaying_load_events() const { return m_delaying_the_load_event.has_value(); }
 
     JS::GCPtr<SessionHistoryEntry> active_session_history_entry() const { return m_active_session_history_entry; }
     void set_active_session_history_entry(JS::GCPtr<SessionHistoryEntry> entry) { m_active_session_history_entry = entry; }

Userland/Libraries/LibWeb/HTML/Parser/HTMLParser.cpp

@@ -304,9 +304,8 @@ void HTMLParser::the_end()
     });
 
     // 8. Spin the event loop until there is nothing that delays the load event in the Document.
-    // FIXME: Track down all the things that are supposed to delay the load event.
     main_thread_event_loop().spin_until([&] {
-        return m_document->number_of_things_delaying_the_load_event() == 0;
+        return !m_document->anything_is_delaying_the_load_event();
     });
 
     // 9. Queue a global task on the DOM manipulation task source given the Document's relevant global object to run the following steps:

Userland/Libraries/LibWeb/XML/XMLDocumentBuilder.cpp

@@ -219,7 +219,7 @@ void XMLDocumentBuilder::document_end()
 
     // Spin the event loop until there is nothing that delays the load event in the Document.
     HTML::main_thread_event_loop().spin_until([&] {
-        return m_document->number_of_things_delaying_the_load_event() == 0;
+        return !m_document->anything_is_delaying_the_load_event();
     });
 
     // Queue a global task on the DOM manipulation task source given the Document's relevant global object to run the following steps: