Load data URI images in an async way according to spec

third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html

Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html
index 851733635dd90bd483c8478e419e55d35963d1fb..e2afad91a0984fd63c15b1c13338581beab15670 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html
+++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-out-of-bounds-src.html
@@ -36,15 +36,17 @@ ctx1.drawImage(bgcanvas, -100, 0,    200, 200, -25, 175, 100, 100);
 ctx1.drawImage(bgcanvas, 0,    0,    100, 200, 75,  175, 100, 100);
 ctx1.drawImage(bgcanvas, 0,    0,    200, 200, 175, 175, 100, 100);
 
-ctx2.drawImage(img, -100, -100, 300, 300, -25, -25, 300, 300);
-ctx2.drawImage(img, -100, -100, 200, 200, -25, -25, 100, 100);
-ctx2.drawImage(img, 0,    -100, 100, 200, 75,  -25, 100, 100);
-ctx2.drawImage(img, 0,    -100, 200, 200, 175, -25, 100, 100);
-ctx2.drawImage(img, -100, 0,    200, 100, -25, 75,  100, 100);
-ctx2.drawImage(img, 0,  0,      200, 100, 175, 75,  100, 100);
-ctx2.drawImage(img, -100, 0,    200, 200, -25, 175, 100, 100);
-ctx2.drawImage(img, 0,    0,    100, 200, 75,  175, 100, 100);
-ctx2.drawImage(img, 0,    0,    200, 200, 175, 175, 100, 100);
+img.onload = function() {
+    ctx2.drawImage(img, -100, -100, 300, 300, -25, -25, 300, 300);
+    ctx2.drawImage(img, -100, -100, 200, 200, -25, -25, 100, 100);
+    ctx2.drawImage(img, 0,    -100, 100, 200, 75,  -25, 100, 100);
+    ctx2.drawImage(img, 0,    -100, 200, 200, 175, -25, 100, 100);
+    ctx2.drawImage(img, -100, 0,    200, 100, -25, 75,  100, 100);
+    ctx2.drawImage(img, 0,  0,      200, 100, 175, 75,  100, 100);
+    ctx2.drawImage(img, -100, 0,    200, 200, -25, 175, 100, 100);
+    ctx2.drawImage(img, 0,    0,    100, 200, 75,  175, 100, 100);
+    ctx2.drawImage(img, 0,    0,    200, 200, 175, 175, 100, 100);
+}
 
 if (window.testRunner) {
     testRunner.waitUntilDone();
@@ -96,4 +98,4 @@ function imageReady(imageBitmap) {
 }
 
 </script>
-</body></html>
+</body></html>