| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| #resizing { |
| width: 400px; |
| border: 1px solid black; |
| -webkit-transform: translateZ(0); |
| } |
| |
| #resizing > div { |
| height: 50px; |
| margin: 1px; |
| background-color: silver; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| function doTest() |
| { |
| // Force compositing update before changing layer size. |
| if (window.internals) |
| window.internals.layerTreeAsText(document); |
| |
| var resizingDiv = document.getElementById('resizing'); |
| |
| for (var i = 0; i < 2; ++i) { |
| var newDiv = document.createElement('div'); |
| resizingDiv.appendChild(newDiv); |
| } |
| |
| if (window.internals) |
| window.internals.startTrackingRepaints(); |
| |
| for (var i = 0; i < 2; ++i) { |
| var newDiv = document.createElement('div'); |
| resizingDiv.appendChild(newDiv); |
| } |
| |
| if (window.internals) |
| document.getElementById('layers').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| |
| <div id="resizing"></div> |
| <pre id="layers"></pre> |
| |
| </body> |
| </html> |
