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chromium/third_party/blink/web_tests/fast/forms/suggestion-picker/date-suggestion-picker-appearance-zoom125.html 

<!DOCTYPE html>
<meta name=fuzzy content="maxDifference=0-3; totalPixels=0-1000">
<script src="../../../resources/testdriver.js"></script>
<script src="../../../resources/testdriver-vendor.js"></script>
<script src="../resources/picker-common.js"></script>

<body style="zoom: 1.25; background-color: #eeffff;">
<input type=date value="2014-10-30" list="suggestions" style="width: 200px;">
<datalist id=suggestions>
  <option>2012-01-00</option> <!--invalid-->
  <option>foo</option> <!--invalid-->
  <option label="Today">2012-01-01</option>
  <option label="Tomorrow">2012-01-02</option>
  <option>2012-01-03</option>
  <option>2012-01-04</option>
  <option>2012-01-05</option>
  <option>2012-01-06</option>
</datalist>

<script>
  window.onload = openPickerAppearanceOnly(document.querySelector('input'),() => {
    internals.pagePopupWindow.focus();
    eventSender.keyDown('ArrowDown');
  });
</script>