void Document::scheduleLayoutTreeUpdate()
{
    ASSERT(!hasPendingStyleRecalc());
    ASSERT(shouldScheduleLayoutTreeUpdate());
    ASSERT(needsLayoutTreeUpdate());

    if (!view()->shouldThrottleRendering())
        page()->animator().scheduleVisualUpdate(frame());
    m_lifecycle.ensureStateAtMost(DocumentLifecycle::VisualUpdatePending);

    TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "ScheduleStyleRecalculation", TRACE_EVENT_SCOPE_THREAD, "data", InspectorRecalculateStylesEvent::data(frame()));
    InspectorInstrumentation::didScheduleStyleRecalculation(this);

    ++m_styleVersion;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.