#include #include endpoint CompositorServer { async_scroll_by(u64 page_id, Gfx::FloatPoint position, Gfx::FloatPoint delta_in_device_pixels) => (bool handled) mouse_event(u64 page_id, Web::MouseEvent event) => (bool handled) ready_to_paint(u64 page_id, i32 bitmap_id) =| }