Use testharness.js instead of js-test.js in LayoutTests/fast/canvas tests.

third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-copyPixels.js

-description("Test if putImageData gives back the same result as getImageData");
-var ctx = document.createElement('canvas').getContext('2d');
-
-ctx.fillStyle = "red";
-ctx.fillRect(0,0,50,20);
-ctx.fillStyle = "green";
-ctx.fillRect(50,0,50,20);
-ctx.fillStyle = "blue";
-ctx.fillRect(100,0,50,20);
-
-var data = ctx.getImageData(0,0,150,20);
-ctx.putImageData(data, 0, 20);
-
-var imageData = ctx.getImageData(1, 21, 48, 18);
-var imgdata = imageData.data;
-shouldBe("imgdata[4]", "255");
-shouldBe("imgdata[5]", "0");
-shouldBe("imgdata[6]", "0");
-
-imageData = ctx.getImageData(51, 21, 48, 18);
-imgdata = imageData.data;
-shouldBe("imgdata[4]", "0");
-shouldBe("imgdata[5]", "128");
-shouldBe("imgdata[6]", "0");
-
-imageData = ctx.getImageData(101, 21, 48, 18);
-imgdata = imageData.data;
-shouldBe("imgdata[4]", "0");
-shouldBe("imgdata[5]", "0");
-shouldBe("imgdata[6]", "255");