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| 1 <!DOCTYPE> |
| 2 <script src="../../resources/testharness.js"></script> |
| 3 <script src="../../resources/testharnessreport.js"></script> |
| 4 <script id="myWorker" type="text/worker"> |
| 5 self.onmessage = function(e) { |
| 6 var offscreenCanvas = e.data; |
| 7 var offscreen2d = offscreenCanvas.getContext("2d"); |
| 8 offscreen2d.commit(); |
| 9 self.postMessage("worker done"); |
| 10 }; |
| 11 </script> |
| 12 <script> |
| 13 function makeWorker() { |
| 14 var blob = new Blob([document.getElementById("myWorker").textContent]); |
| 15 return new Worker(URL.createObjectURL(blob)); |
| 16 } |
| 17 |
| 18 // Regression test for crbug.com/663916 |
| 19 async_test(function(t) { |
| 20 var canvas1 = document.createElement('canvas'); |
| 21 canvas1.width = canvas1.height = 10; |
| 22 var offscreenCanvas1 = canvas1.transferControlToOffscreen(); |
| 23 |
| 24 var canvas2 = document.createElement('canvas'); |
| 25 canvas2.width = canvas2.height = 10; |
| 26 var offscreenCanvas2 = canvas2.transferControlToOffscreen(); |
| 27 |
| 28 var worker1 = makeWorker(); |
| 29 var worker2 = makeWorker(); |
| 30 var returnedWorkerCounter = 0; |
| 31 worker1.onmessage = worker2.onmessage = function (e) { |
| 32 returnedWorkerCounter++; |
| 33 if (returnedWorkerCounter == 2) |
| 34 t.done(); |
| 35 }; |
| 36 worker1.postMessage(offscreenCanvas1, [offscreenCanvas1]); |
| 37 worker2.postMessage(offscreenCanvas2, [offscreenCanvas2]); |
| 38 }, "Calling OffscreenCanvas.commit() from two workers should not crash."); |
| 39 |
| 40 </script> |
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