| <!DOCTYPE html> | |
| <canvas></canvas> | |
| <script> | |
| if (window.testRunner) | |
| testRunner.waitUntilDone(); | |
| var canvas = document.querySelector("canvas"); | |
| var context = canvas.getContext("2d"); | |
| // first frame | |
| requestAnimationFrame(function() { | |
| // second frame which doesn't have a dirty | |
| context.scale(2, 1); | |
| requestAnimationFrame(function() { | |
| // third frame which has a dirty | |
| context.scale(2, 1); | |
| context.fillRect(0, 0, 10, 10); | |
| if (window.testRunner) | |
| testRunner.notifyDone(); | |
| }); | |
| }); | |
| </script> |