third_party/WebKit/LayoutTests/fast/images/image-change-without-resize-shouldnt-layout.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/js-test.js"></script>
   3 <script>
   4 description("This test ensures that when an image changes, but doesn't change size (like in an Animated GIF), we don't force a Layout.")
   5
   6 if (window.testRunner)
   7     testRunner.waitUntilDone();
   8
   9 function runTest() {
  10     document.documentElement.offsetTop;
  11     var imageElement = document.getElementById("image");
  12     imageElement.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAMAAAAoyzS7AAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAAGUExURf8AAAAAAEGjEgMAAAAMSURBVHjaYmAACDAAAAIAAU9tWeEAAAAASUVORK5CYII="
  13     if (window.internals)
  14         shouldBe("window.internals.needsLayoutCount()", "0");
  15     if (window.testRunner)
  16         testRunner.notifyDone();
  17 };
  18 </script>
  19 <body onload="runTest();">
  20 <div style="float: left;">
  21     <img id="image" style="max-width: 100%" src="../replaced/resources/1x1-blue.png">
  22 </div>