LibWeb/DOM: Stub out Document.exitPointerLock()

This lets us leave the main menu on classic.minecraft.net by tapping
Escape again.

Author: AtkinsSJ

Libraries/LibWeb/DOM/Document.cpp

@@ -6954,4 +6954,9 @@ void Document::remove_pending_css_import_rule(Badge<CSS::CSSImportRule>, GC::Ref
     m_pending_css_import_rules.remove(rule);
 }
 
+void Document::exit_pointer_lock()
+{
+    dbgln("FIXME: exit_pointer_lock()");
+}
+
 }

Libraries/LibWeb/DOM/Document.h

@@ -958,6 +958,8 @@ class WEB_API Document
     CSS::StyleScope const& style_scope() const { return m_style_scope; }
     CSS::StyleScope& style_scope() { return m_style_scope; }
 
+    void exit_pointer_lock();
+
 protected:
     virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;

Libraries/LibWeb/DOM/Document.idl

@@ -167,6 +167,9 @@ interface Document : Node {
 
     // https://www.w3.org/TR/SVG2/struct.html#InterfaceDocumentExtensions
     readonly attribute SVGSVGElement? rootElement;
+    
+    // https://w3c.github.io/pointerlock/#extensions-to-the-document-interface
+    undefined exitPointerLock();
 };
 
 dictionary ElementCreationOptions {