void Document::layoutUpdated()
{
    markers().updateRenderedRectsForMarkers();

    if (isRenderingReady() && body() && !styleEngine().hasPendingSheets()) {
        if (!m_documentTiming.firstLayout())
            m_documentTiming.markFirstLayout();
    }
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.