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

third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/path-objects/2d.path.arc.angle.3.worker.js

Index: third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/path-objects/2d.path.arc.angle.3.worker.js
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/path-objects/2d.path.arc.angle.3.worker.js b/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/path-objects/2d.path.arc.angle.3.worker.js
deleted file mode 100644
index 4c4bfa8992ce0ef9054e7c9505ee3c876c370ff4..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/path-objects/2d.path.arc.angle.3.worker.js
+++ /dev/null
@@ -1,27 +0,0 @@
-// DO NOT EDIT! This test has been generated by tools/gentest.py.
-// OffscreenCanvas test in a worker:2d.path.arc.angle.3
-// Description:arc() wraps angles mod 2pi when anticlockwise and end > start+2pi
-// Note:
-
-importScripts("/resources/testharness.js");
-importScripts("/common/canvas-tests.js");
-
-var t = async_test("arc() wraps angles mod 2pi when anticlockwise and end > start+2pi");
-t.step(function() {
-
-var offscreenCanvas = new OffscreenCanvas(100, 50);
-var ctx = offscreenCanvas.getContext('2d');
-
-ctx.fillStyle = '#0f0';
-ctx.fillRect(0, 0, 100, 50);
-ctx.fillStyle = '#f00';
-ctx.beginPath();
-ctx.moveTo(100, 0);
-ctx.arc(100, 0, 150, (512+1/2)*Math.PI, (1024-1)*Math.PI, true);
-ctx.fill();
-_assertPixel(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255");
-
-t.done();
-
-});
-done();