LibWeb/HTML: Port Window.requestAnimationFrame() to IDL

Author: https://github.com/linusg
Commit: 211e6c1fbc
Pull-request: https://github.com/SerenityOS/serenity/pull/17752
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWeb/HTML/AnimationFrameProvider.idl

@@ -0,0 +1,8 @@
+#import <HighResolutionTime/DOMHighResTimeStamp.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);
+};