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

third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-lineDash-invalid.js

-description("Test for invalid input of setLineDash, getLineDash and lineDashOffset");
-
-var canvas = document.createElement('canvas');
-document.body.appendChild(canvas);
-canvas.setAttribute('width', '700');
-canvas.setAttribute('height', '700');
-var ctx = canvas.getContext('2d');
-var initialLineDash = [1.5, 2.5];
-var initialLineDashOffset = 1.5;
-
-function resetLineDash() {
-    ctx.setLineDash(initialLineDash);
-    ctx.lineDashOffset = initialLineDashOffset;
-}
-
-function trySettingLineDash(value) {
-    resetLineDash();
-    ctx.setLineDash(value);
-    return ctx.getLineDash();
-}
-
-function trySettingLineDashWithNoArgs() {
-    resetLineDash();
-    ctx.setLineDash();
-    return ctx.getLineDash();
-}
-
-function trySettingLineDashOffset(value) {
-    resetLineDash();
-    ctx.lineDashOffset = value;
-    return ctx.lineDashOffset;
-}
-
-shouldBe("trySettingLineDash([1, -1])", "initialLineDash");
-shouldBe("trySettingLineDash([1, Infinity])", "initialLineDash");
-shouldBe("trySettingLineDash([1, -Infinity])", "initialLineDash");
-shouldBe("trySettingLineDash([1, NaN])", "initialLineDash");
-shouldBe("trySettingLineDash([1, 'string'])", "initialLineDash");
-shouldThrow("trySettingLineDashWithNoArgs()", '"TypeError: Failed to execute \'setLineDash\' on \'CanvasRenderingContext2D\': 1 argument required, but only 0 present."');
-
-shouldBe("trySettingLineDashOffset(Infinity)", "initialLineDashOffset");
-shouldBe("trySettingLineDashOffset(-Infinity)", "initialLineDashOffset");
-shouldBe("trySettingLineDashOffset(NaN)", "initialLineDashOffset");
-shouldBe("trySettingLineDashOffset('string')", "initialLineDashOffset");