OLD | NEW |
1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <html> | 2 <html> |
3 <head> | 3 <head> |
4 <script type="text/javascript"> | 4 <script type="text/javascript"> |
5 if (window.testRunner) | 5 if (window.testRunner) |
6 testRunner.dumpAsText(); | 6 testRunner.dumpAsText(); |
7 | 7 |
8 if (window.internals) { | 8 if (window.internals) |
9 internals.settings.setAcceleratedCompositingForFixedPositionEnabled(
true); | 9 internals.settings.setAcceleratedCompositingForFixedPositionEnabled(
true); |
10 internals.settings.setFixedPositionCreatesStackingContext(true); | |
11 } | |
12 | 10 |
13 function test() | 11 function test() |
14 { | 12 { |
15 document.body.offsetHeight; | 13 document.body.offsetHeight; |
16 if (window.internals) | 14 if (window.internals) |
17 window.internals.startTrackingRepaints(document); | 15 window.internals.startTrackingRepaints(document); |
18 | 16 |
19 window.scrollTo(0, 1000); | 17 window.scrollTo(0, 1000); |
20 window.scrollTo(0, 100); | 18 window.scrollTo(0, 100); |
21 | 19 |
22 if (window.internals) | 20 if (window.internals) |
23 document.getElementById('repaintRects').textContent = window.int
ernals.repaintRectsAsText(document); | 21 document.getElementById('repaintRects').textContent = window.int
ernals.repaintRectsAsText(document); |
24 } | 22 } |
25 </script> | 23 </script> |
26 </head> | 24 </head> |
27 <body style="height:2000px" onload="test()"> | 25 <body style="height:2000px" onload="test()"> |
28 <div style="position: fixed; top: -300px; left: 100px; width: 88px; height:
88px; background-color: silver"></div> | 26 <div style="position: fixed; top: -300px; left: 100px; width: 88px; height:
88px; background-color: silver"></div> |
29 <div style="position: fixed; top: 1000px; left: 100px; width: 99px; height:
99px; background-color: silver"></div> | 27 <div style="position: fixed; top: 1000px; left: 100px; width: 99px; height:
99px; background-color: silver"></div> |
30 There should be no repaints here: | 28 There should be no repaints here: |
31 <pre id="repaintRects"></pre> | 29 <pre id="repaintRects"></pre> |
32 </body> | 30 </body> |
33 </html> | 31 </html> |
OLD | NEW |