text: if (window.testRunner)
      testRunner.dumpAsTextWithPixelResults();
  
  function runTest(description) {
      var pre = document.createElement("pre");
      document.body.appendChild(pre);
  
      if (!window.internals) {
          pre.innerHTML = description;
      } else {
          var isUnclipped = window.internals.isUnclippedDescendant(document.getElementById('fixed'));
          pre.innerHTML = "\n'fixed' " + (isUnclipped ? "is" : "is not") + " an unclipped descendant.";
  
          if (isUnclipped) {
              pre.innerHTML += "\nPASS";
          } else {
              pre.innerHTML += "\nUnclipped Descendants are only relevant for " +
                  "preferCompositingToLCDText, so this result is " +
                  "expected everywhere except in the virtual/gpu/ suite.";
          }
      }
  }
  