drawImage throw when ImageBitmap is neutered

third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html

Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html
index 7f6eacfa025735bc3319de0e502df5fc13aa0767..cc1860f0d17311ab379e627c897d971382ef52f0 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html
+++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html
@@ -25,6 +25,17 @@ createImageBitmap(imageData).then(imageBitmap => {
     shouldBe("bitmap.width", "0");
     shouldBe("bitmap.height", "0");
 
+    var canvas = document.createElement("canvas");
+    canvas.width = imgWidth;
+    canvas.height = imgHeight;
+    var ctx = canvas.getContext("2d");
+    try {

[Justin Novosad, 2016/04/21 20:45:19]

In tests that include js-test.js, you might as well use "shouldThrow()"

[xidachen, 2016/04/22 01:58:13]

Done.

+        ctx.drawImage(bitmap, 0, 0);
+        testFailed("Drawing a closed ImageBitmap passed unexpectedly");
+    } catch(ex) {
+        testPassed("Drawing a closed ImageBitmap throws: " + ex);
+    }
+
     // Try to apply structured clone to an already closed bitmap
     try {
         worker.postMessage({data: bitmap});