| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| .scroller { |
| width: 300px; |
| height: 300px; |
| overflow: auto; |
| -webkit-overflow-scrolling: touch; |
| } |
| |
| #column { |
| /* Initially the content doesn't overflow so it won't be composited. */ |
| width: 100px; |
| height: 100px; |
| background: silver; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| window.addEventListener('load', function() { |
| // Introducing overflow should enable composited scrolling. |
| var column = document.getElementById('column'); |
| column.style.width = '1000px'; |
| column.style.height = '1000px'; |
| if (window.testRunner) |
| document.getElementById('layers').innerHTML = internals.layerTreeAsText(document); |
| }, true); |
| </script> |
| </head> |
| |
| <body> |
| <div class="scroller"> |
| <div id="column"> |
| </div> |
| </div> |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| </body> |
| </html> |
