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

third_party/WebKit/LayoutTests/fast/canvas/script-tests/linearGradient-infinite-values.js

-description(
-'This test checks createLinearGradient with infinite values'
-);
-
-var ctx = document.createElement('canvas').getContext('2d');
-
-shouldThrow("ctx.createLinearGradient(0, 0, 100, NaN)");
-shouldThrow("ctx.createLinearGradient(0, 0, 100, Infinity)");
-shouldThrow("ctx.createLinearGradient(0, 0, 100, -Infinity)");
-shouldThrow("ctx.createLinearGradient(0, 0, NaN, 100)");
-shouldThrow("ctx.createLinearGradient(0, 0, Infinity, 100)");
-shouldThrow("ctx.createLinearGradient(0, 0, -Infinity, 100)");
-shouldThrow("ctx.createLinearGradient(0, NaN, 100, 100)");
-shouldThrow("ctx.createLinearGradient(0, Infinity, 100, 100)");
-shouldThrow("ctx.createLinearGradient(0, -Infinity, 100, 100)");
-shouldThrow("ctx.createLinearGradient(NaN, 0, 100, 100)");
-shouldThrow("ctx.createLinearGradient(Infinity, 0, 100, 100)");
-shouldThrow("ctx.createLinearGradient(-Infinity, 0, 100, 100)");