third_party/WebKit/LayoutTests/fast/repaint/block-selection-gap-stale-cache-2.html

   1 <head>
   2     <style>
   3         ::selection { background-color: red; }
   4     </style>
   5     <script type="text/javascript" charset="utf-8">
   6     function runTest()
   7     {
   8         sel.empty();
   9     }
  10     </script>
  11 </head>
  12 <body onload="runTest()">
  13 <div style="height: 100px; overflow-y: scroll;">
  14     <div style="margin-top: 50px;"><div id="target" style="display: inline-block; width: 100px; height: 100px;"></div><br></div>&nbsp;
  15 </div>
  16 <script>
  17     var sel = getSelection();
  18     var target = document.getElementById("target");
  19
  20     sel.setBaseAndExtent(target, 0, target.parentElement.nextSibling, 0);
  21     document.body.offsetTop;
  22     target.parentElement.parentElement.scrollTop = 50;
  23 </script>