Submit CompositorFrame from worker

third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-commit-invalid-call.html

+<!DOCTYPE>
+<script src="../../resources/testharness.js"></script>
+<script src="../../resources/testharnessreport.js"></script>
+<script id="myWorker" type="text/worker">
+self.onmessage = function(e) {
+    var offscreenCanvas = new OffscreenCanvas(50, 50);
+    var offscreen2d = offscreenCanvas.getContext("2d");
+    try {
+        offscreen2d.commit();
+        self.postMessage("NoError");
+    } catch (ex) {
+        self.postMessage(ex.name);
+    }
+};
+</script>
+<script>
+function makeWorker(script) {
+   var blob = new Blob([script]);
+   return new Worker(URL.createObjectURL(blob));
+}
+
+
+test(function() {
+    var offscreenCanvas = new OffscreenCanvas(50, 50);
+    var offscreen2d = offscreenCanvas.getContext("2d");
+    assert_throws("InvalidStateError", function () {
+        offscreen2d.commit();
+    });
+}, "Calling OffscreenCanvas.commit() on main without transferControlToOffscreen throws exception.");
+
+async_test(function() {
+    var worker = makeWorker(document.getElementById("myWorker").textContent);
+    worker.onmessage = this.step_func(function (e) {
+        assert_equals(e.data, "InvalidStateError", "Expected exception on worker but receives " + e.data);
+        this.done();
+    });
+    worker.postMessage("");
+}, "Calling OffscreenCanvas.commit() on worker without transferControlToOffscreen throws exception.");
+
+
+
+</script>