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1 <!DOCTYPE html> | |
2 | |
3 <html> | |
4 <head> | |
5 <style type="text/css" media="screen"> | |
6 .box { | |
7 position: relative; | |
8 height: 100px; | |
9 width: 100px; | |
10 margin: 10px; | |
11 left: 0; | |
12 top: 0; | |
13 background-color: silver; | |
14 } | |
15 | |
16 .clipping { | |
17 position: relative; | |
18 z-index: 0; | |
19 width: 300px; | |
20 border: 1px solid black; | |
21 padding: 20px; | |
22 overflow: hidden; | |
23 } | |
24 | |
25 .composited { | |
26 transform: translateZ(0); | |
27 } | |
28 </style> | |
29 | |
30 <script> | |
31 if (window.testRunner) | |
32 testRunner.dumpAsText(); | |
33 | |
34 function dumpLayers() | |
35 { | |
36 var layersResult = document.getElementById('layers'); | |
37 if (window.testRunner) | |
38 layersResult.innerText = window.internals.layerTreeAsText(document); | |
39 | |
40 } | |
41 window.addEventListener('load', dumpLayers, false) | |
42 </script> | |
43 | |
44 </head> | |
45 <body> | |
46 | |
47 <div class="clipping"> | |
48 This layer should not have backing store. | |
49 <div class="clipping"> | |
50 This layer should not have backing store. | |
51 <div class="box composited"> | |
52 </div> | |
53 </div> | |
54 </div> | |
55 | |
56 <pre id="layers">Layer tree goes here in DRT</pre> | |
57 | |
58 </body> | |
59 </html> | |
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