Everywhere: Hoist the Services folder to the top-level

Author: https://github.com/trflynn89
Commit: 22e0eeada2
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Services/WebContent/BackingStoreManager.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibCore/Forward.h>
+#include <LibWeb/Page/Page.h>
+#include <LibWeb/Painting/BackingStore.h>
+#include <WebContent/Forward.h>
+
+namespace WebContent {
+
+class BackingStoreManager {
+public:
+#ifdef AK_OS_MACOS
+    static void set_browser_mach_port(Core::MachPort&&);
+#endif
+
+    enum class WindowResizingInProgress {
+        No,
+        Yes
+    };
+    void resize_backing_stores_if_needed(WindowResizingInProgress window_resize_in_progress);
+    void reallocate_backing_stores(Gfx::IntSize);
+    void restart_resize_timer();
+
+    Web::Painting::BackingStore* back_store() { return m_back_store.ptr(); }
+    i32 front_id() const { return m_front_bitmap_id; }
+
+    void swap_back_and_front();
+
+    BackingStoreManager(PageClient&);
+
+private:
+    // FIXME: We should come up with an ownership model for this class that makes the GC-checker happy
+    IGNORE_GC PageClient& m_page_client;
+
+    i32 m_front_bitmap_id { -1 };
+    i32 m_back_bitmap_id { -1 };
+    OwnPtr<Web::Painting::BackingStore> m_front_store;
+    OwnPtr<Web::Painting::BackingStore> m_back_store;
+    int m_next_bitmap_id { 0 };
+
+    RefPtr<Core::Timer> m_backing_store_shrink_timer;
+};
+
+}