LibWeb: Add the EpochTimestamp IDL typedef

Author: https://github.com/gmta
Commit: 63fd4cf9e4
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5143

Libraries/LibWeb/HighResolutionTime/EpochTimeStamp.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2025, Jelle Raaijmakers <jelle@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/WebIDL/Types.h>
+
+namespace Web::HighResolutionTime {
+
+// https://www.w3.org/TR/hr-time-3/#the-epochtimestamp-typedef
+using EpochTimeStamp = WebIDL::UnsignedLongLong;
+
+}

Libraries/LibWeb/HighResolutionTime/EpochTimeStamp.idl

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+// https://www.w3.org/TR/hr-time-3/#the-epochtimestamp-typedef
+typedef unsigned long long EpochTimeStamp;