LayoutTests/resources/accessibility-helper.js

function dumpAccessibilityTree(accessibilityObject, stopElement, indent, allAttributesIfNeeded, getValueFromTitle) {
    var str = "";
    var i = 0;

    for (i = 0; i < indent; i++)
        str += "    ";
    str += accessibilityObject.role;
    str += " " + (getValueFromTitle === true ? accessibilityObject.title : accessibilityObject.stringValue);
    str += allAttributesIfNeeded && accessibilityObject.role == '' ? accessibilityObject.allAttributes() : '';
    str += "\n";

    document.getElementById("tree").innerText += str;

    if (stopElement && stopElement.isEqual(accessibilityObject))
        return;

    var count = accessibilityObject.childrenCount;
    for (i = 0; i < count; ++i) {
        if (!dumpAccessibilityTree(accessibilityObject.childAtIndex(i), stopElement, indent + 1, allAttributesIfNeeded, getValueFromTitle))
            return false;
    }

    return true;
}

function touchAccessibilityTree(accessibilityObject) {
    var count = accessibilityObject.childrenCount;
    for (var i = 0; i < count; ++i) {
        if (!touchAccessibilityTree(accessibilityObject.childAtIndex(i)))
            return false;
    }

    return true;
}