Add offscreen-canvas to the list of wpt directories to skip.

third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/line-styles/2d.line.join.round.worker.js

-// DO NOT EDIT! This test has been generated by tools/gentest.py.
-// OffscreenCanvas test in a worker:2d.line.join.round
-// Description:lineJoin 'round' is rendered correctly
-// Note:
-
-importScripts("/resources/testharness.js");
-importScripts("/common/canvas-tests.js");
-
-var t = async_test("lineJoin 'round' is rendered correctly");
-t.step(function() {
-
-var offscreenCanvas = new OffscreenCanvas(100, 50);
-var ctx = offscreenCanvas.getContext('2d');
-
-ctx.fillStyle = '#0f0';
-ctx.fillRect(0, 0, 100, 50);
-var tol = 1; // tolerance to avoid antialiasing artifacts
-ctx.lineJoin = 'round';
-ctx.lineWidth = 20;
-ctx.fillStyle = '#f00';
-ctx.strokeStyle = '#0f0';
-ctx.fillRect(10, 10, 20, 20);
-ctx.fillRect(20, 20, 20, 20);
-ctx.beginPath();
-ctx.moveTo(30, 20);
-ctx.arc(30, 20, 10-tol, 0, 2*Math.PI, true);
-ctx.fill();
-ctx.beginPath();
-ctx.moveTo(10, 20);
-ctx.lineTo(30, 20);
-ctx.lineTo(30, 40);
-ctx.stroke();
-ctx.fillStyle = '#0f0';
-ctx.strokeStyle = '#f00';
-ctx.beginPath();
-ctx.moveTo(60, 20);
-ctx.lineTo(80, 20);
-ctx.lineTo(80, 40);
-ctx.stroke();
-ctx.fillRect(60, 10, 20, 20);
-ctx.fillRect(70, 20, 20, 20);
-ctx.beginPath();
-ctx.moveTo(80, 20);
-ctx.arc(80, 20, 10+tol, 0, 2*Math.PI, true);
-ctx.fill();
-_assertPixel(offscreenCanvas, 36,14, 0,255,0,255, "36,14", "0,255,0,255");
-_assertPixel(offscreenCanvas, 36,13, 0,255,0,255, "36,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 37,13, 0,255,0,255, "37,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 38,13, 0,255,0,255, "38,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 38,12, 0,255,0,255, "38,12", "0,255,0,255");
-_assertPixel(offscreenCanvas, 86,14, 0,255,0,255, "86,14", "0,255,0,255");
-_assertPixel(offscreenCanvas, 86,13, 0,255,0,255, "86,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 87,13, 0,255,0,255, "87,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 88,13, 0,255,0,255, "88,13", "0,255,0,255");
-_assertPixel(offscreenCanvas, 88,12, 0,255,0,255, "88,12", "0,255,0,255");
-
-t.done();
-
-});
-done();