Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: https://github.com/LadybirdBrowser/ladybird/commit/93712b24bf2
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/Platform/EventLoopPlugin.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Forward.h>
+#include <LibJS/Heap/GCPtr.h>
+#include <LibJS/Heap/HeapFunction.h>
+#include <LibWeb/Forward.h>
+
+namespace Web::Platform {
+
+class EventLoopPlugin {
+public:
+    static EventLoopPlugin& the();
+    static void install(EventLoopPlugin&);
+
+    virtual ~EventLoopPlugin();
+
+    virtual void spin_until(JS::Handle<JS::HeapFunction<bool()>> goal_condition) = 0;
+    virtual void deferred_invoke(ESCAPING JS::Handle<JS::HeapFunction<void()>>) = 0;
+    virtual JS::NonnullGCPtr<Timer> create_timer(JS::Heap&) = 0;
+    virtual void quit() = 0;
+};
+
+}