| <!DOCTYPE html> <!-- webkit-test-runner [ internal:AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <title>Tests that the sharing layer still has backing store and paints shared layers after a tree config change</title> |
| <style> |
| .scrollable { |
| overflow-y: scroll; |
| height: 400px; |
| width: 300px; |
| margin: 10px; |
| border: 1px solid black; |
| } |
| |
| .sharing { |
| margin: 20px; |
| width: 150px; |
| height: 130px; |
| background-color: green; |
| opacity: 0.75; |
| } |
| |
| .spacer { |
| height: 500px; |
| width: 20px; |
| background-color: silver; |
| } |
| |
| .spacer.changed { |
| height: 100px; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| window.addEventListener('load', () => { |
| setTimeout(() => { |
| document.querySelector('.spacer').classList.add('changed'); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="scrollable"> |
| <div class="sharing"> |
| </div> |
| <div class="spacer"></div> |
| </div> |
| </body> |
| </html> |
