src/third_party/WebKit/LayoutTests/fast/canvas/canvas-bg-multiple-removal.html

   1 <html>
   2 <script>
   3 if (window.testRunner) {
   4     testRunner.dumpAsText();
   5     testRunner.waitUntilDone();
   6 }
   7
   8 window.onload = function()
   9 {
  10     if (location.hash == "#2") {
  11         document.body.innerHTML = "PASSED: Duplicate webkit-canvas styles removed without crash.";
  12         if (window.testRunner)
  13             testRunner.notifyDone();
  14     } else {
  15         if (location.hash)
  16             location.hash = "#" + (parseInt(location.hash.slice(1)) + 1).toString();
  17         else
  18             location.hash = "#1";
  19
  20         iframe = document.body.appendChild(document.createElement('iframe'));
  21         element1 = document.createElement('a');
  22         iframe.contentDocument.body.appendChild(element1);
  23         element1.style.setProperty('background', '-webkit-canvas(canvas)');
  24
  25         element2 = document.createElement('a');
  26         iframe.contentDocument.body.appendChild(element2);
  27         element2.style.setProperty('background', '-webkit-canvas(canvas)');
  28
  29         element1.textContent = element2.textContent = 1;
  30         setTimeout(removeElements, 0);
  31     }
  32 }
  33
  34 function removeElements()
  35 {
  36     iframe.contentDocument.body.removeChild(element1);
  37     document.adoptNode(element1);
  38
  39     iframe.contentDocument.body.removeChild(element2);
  40     document.adoptNode(element2);
  41
  42     document.body.removeChild(iframe);
  43     delete iframe;
  44
  45     var timeout = 50;
  46     if (window.GCController)
  47         window.GCController.collect();
  48     else if (window.gc)
  49         gc();
  50     else
  51         timeout = 400;
  52     setTimeout(finishTest, timeout);
  53 }
  54
  55 function finishTest()
  56 {
  57     document.body.appendChild(element1);
  58     setTimeout(function () { location.reload() }, 0);
  59 }
  60
  61 </script>
  62 </html>