Remove 'prerender' from document VisibilityState

Resolves #31957

Author: kripod

baselines/dom.generated.d.ts

@@ -20096,7 +20096,7 @@ type Transport = "usb" | "nfc" | "ble";
 type UserVerificationRequirement = "required" | "preferred" | "discouraged";
 type VRDisplayEventReason = "mounted" | "navigation" | "requested" | "unmounted";
 type VideoFacingModeEnum = "user" | "environment" | "left" | "right";
-type VisibilityState = "hidden" | "visible" | "prerender";
+type VisibilityState = "hidden" | "visible";
 type WebGLPowerPreference = "default" | "low-power" | "high-performance";
 type WorkerType = "classic" | "module";
 type XMLHttpRequestResponseType = "" | "arraybuffer" | "blob" | "document" | "json" | "text";

baselines/webworker.generated.d.ts

@@ -5855,7 +5855,7 @@ type RequestRedirect = "follow" | "error" | "manual";
 type ResponseType = "basic" | "cors" | "default" | "error" | "opaque" | "opaqueredirect";
 type ServiceWorkerState = "installing" | "installed" | "activating" | "activated" | "redundant";
 type ServiceWorkerUpdateViaCache = "imports" | "all" | "none";
-type VisibilityState = "hidden" | "visible" | "prerender";
+type VisibilityState = "hidden" | "visible";
 type WebGLPowerPreference = "default" | "low-power" | "high-performance";
 type WorkerType = "classic" | "module";
 type XMLHttpRequestResponseType = "" | "arraybuffer" | "blob" | "document" | "json" | "text";

inputfiles/idl/Page Visibility.widl

@@ -1,5 +1,5 @@
 enum VisibilityState {
-  "hidden", "visible", "prerender"
+  "hidden", "visible"
 };
 
 partial interface Document {