chromium/src/third_party/blink/web_tests/external/wpt/html/editing/dnd/resources/dragdrop_support.js

function AddEventListenersForElement(evt, callback, capture, element)
{
    element.addEventListener(evt, callback, capture);
}

function LogTestResult(result)
{
    document.getElementById("test_result").firstChild.data = result;
}