ladybird/Libraries/LibWeb/HTML/AnimationFrameProvider.idl

callback FrameRequestCallback = undefined (DOMHighResTimeStamp time);

// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#animationframeprovider
interface mixin AnimationFrameProvider {
    unsigned long requestAnimationFrame(FrameRequestCallback callback);
    undefined cancelAnimationFrame(unsigned long handle);
};