| <!DOCTYPE html> |
| <script> |
| window.onload = function() |
| { |
| if (!window.testRunner || !window.internals) |
| return; |
| |
| testRunner.dumpAsText(); |
| document.body.offsetTop; |
| internals.startTrackingRepaints(document); |
| |
| document.getElementById('a').style.top = '400px'; |
| document.getElementById('b').style.left = '400px'; |
| |
| document.body.offsetTop; |
| var layerTree = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_INVALIDATIONS); |
| internals.stopTrackingRepaints(document); |
| document.getElementById('result').textContent = layerTree.indexOf('repaint') == -1 ? 'SUCCESS' : 'FAIL'; |
| }; |
| </script> |
| |
| <style> |
| .fixed { |
| position: fixed; |
| top: 200px; |
| left: 200px; |
| width: 100px; |
| backface-visibility: hidden; |
| } |
| </style> |
| |
| There should be no repaint when the divs are moved. |
| <div class="fixed" id="a">A</div> |
| <div class="fixed" id="b">B</div> |
| <pre id="result"></pre> |
