Автоматическое нажатие кнопок на веб странице в Google Chrome Console на JavaScript

Google translate toolkit auto _Use suggestion_.js

//
// Usage: https://youtu.be/VDRx9zJCS9E
//

var dispatchMouseEvent = function(target, var_args) {
  var e = document.createEvent("MouseEvents");
  e.initEvent.apply(e, Array.prototype.slice.call(arguments, 1));
  target.dispatchEvent(e);
};
function mouseClick(target) {
  dispatchMouseEvent(target, 'mousedown', true, true);
  target.focus();
  dispatchMouseEvent(target, 'mouseup', true, true);
};
function elementHasClass(target, cls) {
  return (' ' + target.className + ' ').indexOf(' ' + cls + ' ') > -1;
}
function getElementByXpath(path) {
  return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}
var i = 0;
var tmp;
var arr = [];
function timer_func() {
  var sug = getElementByXpath('//*[@id="tools"]/div[3]/div[1]/div[2]/div[2]/div/span[1]');
  var nextSegmentButton = getElementByXpath('//*[@id="goog.gtc-nextlink"]');
  var useSuggestionButton = getElementByXpath('//*[@id="gtc-mtusesugg-button"]/div');
  var _ = true;
  if (getElementByXpath('//*[@class="gtc-editor-info"]').innerHTML) { 
    _ = false 
  }
  console.log(i, '/', arr.length, arr[i], ' - ', sug.innerHTML);
  if (arr[i]) {
    mouseClick(useSuggestionButton);
  }
  mouseClick(nextSegmentButton);
  i += 1;
  if (!elementHasClass(nextSegmentButton, 'jfk-button-disabled') && i <= arr.length) {
    window.setTimeout(timer_func, 1000);
  }
}
var iframe = $x('//iframe')[2]
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
innerDoc.childNodes[1].childNodes[2].childNodes
innerDoc.childNodes[1].childNodes[2].childNodes.forEach(function(el) {
  if (el.tagName === 'DIV' && el.getAttribute('class') === 'goog-gtt-messageblock') {
    tmp = el.childNodes[2].childNodes[0].childNodes[0].childNodes[0].getAttribute('style');
    if (tmp) {
      arr.push((' '+tmp.indexOf(' color')) > -1);
    } else {
      arr.push(true);
    }
  }
});
console.log('Working array:', arr);
timer_func();