| <style> |
| .composited { |
| -webkit-transform: translateZ(0); |
| } |
| |
| .box { |
| width: 100px; |
| height: 100px; |
| background-color: blue; |
| } |
| |
| img { |
| background-color: black; |
| width: 50px; |
| height: 50px; |
| } |
| |
| img.to-visible { |
| visibility: hidden; |
| } |
| body.changed img.to-visible { |
| visibility: visible; |
| } |
| |
| img.to-hidden { |
| visibility: visible; |
| } |
| body.changed img.to-hidden { |
| visibility: hidden; |
| } |
| |
| #layers { |
| opacity: 0; /* hide from pixel result */ |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(true); |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() |
| { |
| document.body.offsetWidth; |
| window.setTimeout(function() { |
| if (window.internals) |
| window.internals.startTrackingRepaints(document); |
| document.body.classList.toggle('changed'); |
| if (window.testRunner) { |
| document.getElementById('layers').innerText = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); |
| testRunner.notifyDone(); |
| } |
| }, 0); |
| } |
| window.addEventListener('load', doTest, false); |
| </script> |
| <body> |
| <div style="position: absolute; left: 0px; top: 0px; z-index: 106; " class="composited"> |
| <img style="position: absolute; left: 10px; top: 10px; z-index: 0;"> |
| <img style="position: absolute; left: 500px; top: 200px; z-index: 0;" class="to-visible"> |
| </div> |
| |
| <div style="position: absolute; left: 0px; top: 250px; z-index: 106; " class="composited"> |
| <img style="position: absolute; left: 10px; top: 10px; z-index: 0;"> |
| <img style="position: absolute; left: 500px; top: 200px; z-index: 0;" class="to-hidden"> |
| </div> |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| </body> |
