LibWeb: Save document load timing when creating browsing context

2 files changed, 33 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.cpp b/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.cpp
new file mode 100644
index 0000000000..0d5739e629
--- /dev/null
+++ b/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.cpp
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/HighResolutionTime/CoarsenTime.h>
+
+namespace Web::HighResolutionTime {
+
+// https://w3c.github.io/hr-time/#dfn-coarsen-time
+double coarsen_time(double timestamp, bool cross_origin_isolated_capability)
+{
+    // FIXME: Implement this.
+    (void)cross_origin_isolated_capability;
+    return timestamp;
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.h b/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.h
new file mode 100644
index 0000000000..91fa541c46
--- /dev/null
+++ b/Userland/Libraries/LibWeb/HighResolutionTime/CoarsenTime.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::HighResolutionTime {
+
+// https://w3c.github.io/hr-time/#dfn-coarsen-time
+double coarsen_time(double timestamp, bool cross_origin_isolated_capability = false);
+
+}