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

third_party/WebKit/LayoutTests/fast/canvas/drawImage-with-negative-source-destination.js

-description("Series of tests to ensure correct behaviour on negative source/destination of a HTMLCanvasElement");
-var canvas2 = document.createElement('canvas');
-canvas2.width = 100;
-canvas2.height = 100;
-var ctx2 = canvas2.getContext('2d');
-ctx2.fillStyle = '#f00';
-ctx2.fillRect(0, 0, 100, 50);
-ctx2.fillStyle = '#0f0';
-ctx2.fillRect(0, 50, 100, 50);
-
-var canvas = document.getElementById('canvas').getContext('2d');
-canvas.drawImage(canvas2, 100, 50, -50, 50, 0, 0, 50, 50);
-canvas.drawImage(canvas2, 100, 100, -50, -50, 0, 100, 50, -50);
-canvas.drawImage(canvas2, 0, 100, 100, -50, 100, 100, -50, -50);
-canvas.drawImage(canvas2, 0, 50, 100, 50, 100, 0, -50, 50);
-
-var imageData = canvas.getImageData(0, 0, 100, 100);
-var imgdata = imageData.data;
-shouldBe("imgdata[4]", "0");
-shouldBe("imgdata[5]", "255");
-shouldBe("imgdata[6]", "0");
-
-// test width or height -1
-canvas.fillStyle = '#000';
-canvas.fillRect(0, 0, 1, 2);
-canvas.drawImage(canvas2, 0, 0, 1, 1, 1, 1, -1, -1);
-var imageData = canvas.getImageData(0, 0, 1, 2);
-var imgdata = imageData.data;
-shouldBe("imgdata[0]", "255");
-shouldBe("imgdata[1]", "0");
-shouldBe("imgdata[2]", "0");
-shouldBe("imgdata[4]", "0");
-shouldBe("imgdata[5]", "0");
-shouldBe("imgdata[6]", "0");