| Index: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable.html | 
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable.html b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable.html | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..0c42abd0c1f21fa8c9c27f4391fa2873a7434b22 | 
| --- /dev/null | 
| +++ b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferable.html | 
| @@ -0,0 +1,37 @@ | 
| +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> | 
| +<html> | 
| +<head> | 
| +<script src="../../resources/js-test.js"></script> | 
| +</head> | 
| +<body> | 
| +<script> | 
| + | 
| +description("Test OffscreenCanvas transferable with exception cases."); | 
| +window.jsTestIsAsync = true; | 
| + | 
| +var worker = new Worker('./resources/OffscreenCanvas-transferable.js'); | 
| + | 
| +var width = 50; | 
| +var height = 50; | 
| +var canvas = document.createElement("canvas"); | 
| +canvas.width = width; | 
| +canvas.height = height; | 
| +var newOffscreenCanvas; | 
| + | 
| +var offscreenCanvas = canvas.transferControlToOffscreen(); | 
| +shouldBe("offscreenCanvas.width", "width"); | 
| +shouldBe("offscreenCanvas.height", "height"); | 
| + | 
| +worker.postMessage({data: offscreenCanvas}, [offscreenCanvas]); | 
| +shouldBe("offscreenCanvas.width", "0"); | 
| +shouldBe("offscreenCanvas.height", "0"); | 
| + | 
| +worker.onmessage = function(e) { | 
| +    newOffscreenCanvas = e.data.data; | 
| +    shouldBe("newOffscreenCanvas.width", "width"); | 
| +    shouldBe("newOffscreenCanvas.height", "height"); | 
| +    finishJSTest(); | 
| +} | 
| +</script> | 
| +</body> | 
| +</html> | 
|  |