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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 | 2 |
3 <html> | 3 <html> |
4 <head> | 4 <head> |
5 <style> | 5 <style> |
6 .fixed { | 6 .fixed { |
7 position: fixed; | 7 position: fixed; |
8 width: 10px; | 8 width: 10px; |
9 height: 10px; | 9 height: 10px; |
10 top: 100px; | 10 top: 100px; |
| 11 background-color: silver; |
11 } | 12 } |
12 </style> | 13 </style> |
13 | 14 |
14 <script type="text/javascript"> | 15 <script type="text/javascript"> |
15 if (window.testRunner && window.internals) { | 16 if (window.testRunner && window.internals) { |
16 testRunner.dumpAsText(); | 17 testRunner.dumpAsText(); |
17 internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true); | 18 internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true); |
18 internals.settings.setFixedPositionCreatesStackingContext(true); | 19 internals.settings.setFixedPositionCreatesStackingContext(true); |
19 | 20 |
20 addEventListener("load", function() { | 21 addEventListener("load", function() { |
21 var fixed = document.createElement("div"); | 22 var fixed = document.createElement("div"); |
22 document.body.appendChild(fixed); | 23 document.body.appendChild(fixed); |
23 document.body.offsetHeight; | 24 document.body.offsetHeight; |
24 fixed.className = "fixed"; | 25 fixed.className = "fixed"; |
25 var mainThreadScrollingReasons = internals.mainThreadScrollingReasons(do
cument); | 26 var mainThreadScrollingReasons = internals.mainThreadScrollingReasons(do
cument); |
26 document.getElementById("result").innerText = !mainThreadScrollingReason
s ? "PASS" : "FAIL: " + mainThreadScrollingReasons; | 27 document.getElementById("result").innerText = !mainThreadScrollingReason
s ? "PASS" : "FAIL: " + mainThreadScrollingReasons; |
27 }, false); | 28 }, false); |
28 } | 29 } |
29 </script> | 30 </script> |
30 </head> | 31 </head> |
31 | 32 |
32 <body> | 33 <body> |
33 <pre id="result"></pre> | 34 <pre id="result"></pre> |
34 </body> | 35 </body> |
35 </html> | 36 </html> |
36 | 37 |
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