LibWeb: Implement draw_glyph_run in PaintingCommandExecutorGPU

Author: https://github.com/kalenikaliaksandr
Commit: b6da9abfb2
Pull-request: https://github.com/SerenityOS/serenity/pull/21788
Reviewed-by: https://github.com/Hendiadyoin1
Reviewed-by: https://github.com/MacDue
Reviewed-by: https://github.com/trflynn89

Userland/Libraries/LibWeb/Painting/RecordingPainter.h

@@ -376,6 +376,9 @@ public:
     virtual CommandResult blit_corner_clipping(BorderRadiusCornerClipper&) = 0;
 
     virtual bool would_be_fully_clipped_by_painter(Gfx::IntRect) const = 0;
+
+    virtual bool needs_prepare_glyphs_texture() const { return false; }
+    virtual void prepare_glyph_texture(HashMap<Gfx::Font const*, HashTable<u32>> const& unique_glyphs) = 0;
 };
 
 class RecordingPainter {