| Tests compositor animated css handling. |
| Expired count: 1, elaspedTime: 500 |
| Expired count: 2, elaspedTime: 1000 |
| Event [animationstart] at 0 sec |
| Screenshot rgba: 255,0,0,255 |
| Expired count: 3, elaspedTime: 1500 |
| Event [animationiteration] at 1 sec |
| Screenshot rgba: 1,0,254,255 |
| Expired count: 4, elaspedTime: 2000 |
| Expired count: 5, elaspedTime: 2500 |
| Event [animationiteration] at 2 sec |
| Expired count: 6, elaspedTime: 3000 |
| Expired count: 7, elaspedTime: 3500 |
| Event [animationiteration] at 3 sec |
| Screenshot rgba: 1,0,254,255 |
| Expired count: 8, elaspedTime: 4000 |
| Screenshot rgba: 255,0,0,255 |
| Expired count: 9, elaspedTime: 4500 |
| Event [animationend] at 4 sec |
| Screenshot rgba: 0,0,255,255 |
| Expired count: 10, elaspedTime: 5000 |
| Screenshot rgba: 0,0,255,255 |
