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

third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/the-offscreen-canvas/initial.reset.transform.worker.js

Index: third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/the-offscreen-canvas/initial.reset.transform.worker.js
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/the-offscreen-canvas/initial.reset.transform.worker.js b/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/the-offscreen-canvas/initial.reset.transform.worker.js
deleted file mode 100644
index 516adb69e277629a1244a93f868b8f2cc8f87d72..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/the-offscreen-canvas/initial.reset.transform.worker.js
+++ /dev/null
@@ -1,25 +0,0 @@
-// DO NOT EDIT! This test has been generated by tools/gentest.py.
-// OffscreenCanvas test in a worker:initial.reset.transform
-// Description:Resetting the canvas state resets the current transformation matrix
-// Note:
-
-importScripts("/resources/testharness.js");
-importScripts("/common/canvas-tests.js");
-
-var t = async_test("Resetting the canvas state resets the current transformation matrix");
-t.step(function() {
-
-var offscreenCanvas = new OffscreenCanvas(100, 50);
-var ctx = offscreenCanvas.getContext('2d');
-
-offscreenCanvas2.width = 100;
-ctx.scale(0.1, 0.1);
-offscreenCanvas.width = 100;
-ctx.fillStyle = '#0f0';
-ctx.fillRect(0, 0, 100, 50);
-_assertPixel(offscreenCanvas, 20,20, 0,255,0,255, "20,20", "0,255,0,255");
-
-t.done();
-
-});
-done();