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| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <style> |
| 5 body { |
| 6 margin: 100px; |
| 7 height: 3500px; |
| 8 background-image: url('resources/simple_image.png'); |
| 9 background-size: 200px 200px; |
| 10 background-attachment: fixed; |
| 11 background-repeat: no-repeat; |
| 12 background-position: bottom right; |
| 13 } |
| 14 |
| 15 .test { |
| 16 height: 400px; |
| 17 width: 600px; |
| 18 background-color: rgba(0, 0, 0, 0.5); |
| 19 border: 20px solid orange; |
| 20 } |
| 21 |
| 22 #layers { |
| 23 opacity: 0; |
| 24 } |
| 25 </style> |
| 26 <script> |
| 27 if (window.testRunner) { |
| 28 testRunner.dumpAsText(true); |
| 29 window.internals.settings.setForceCompositingMode(true); |
| 30 window.internals.settings.setAcceleratedCompositingForFixedRootBackgroun
dEnabled(true); |
| 31 } |
| 32 |
| 33 function doTest() |
| 34 { |
| 35 window.scrollTo(0, 200); |
| 36 |
| 37 if (window.internals) |
| 38 document.getElementById('layers').innerText = internals.layerTreeAsT
ext(document, internals.LAYER_TREE_INCLUDES_ROOT_LAYER); |
| 39 } |
| 40 |
| 41 window.addEventListener('load', doTest, false); |
| 42 </script> |
| 43 </head> |
| 44 <body> |
| 45 |
| 46 <div class="test"></div> |
| 47 <pre id="layers"></pre> |
| 48 </body> |
| 49 </html> |
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