reorg: move JS ops implementations to cli/js/ops/, part 2 (#4283)

Following JS ops were moved to separate files in cli/js/ops directory:
- io
- process
- worker_host
- web_worker
- plugins
- timers
- signal
- permissions

1 files changed, 11 insertions, 0 deletions

diff --git a/cli/js/ops/web_worker.ts b/cli/js/ops/web_worker.ts
new file mode 100644
index 000000000..329323e2e
--- /dev/null
+++ b/cli/js/ops/web_worker.ts
@@ -0,0 +1,11 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+import { sendSync } from "./dispatch_json.ts";
+
+export function postMessage(data: Uint8Array): void {
+  sendSync("op_worker_post_message", {}, data);
+}
+
+export function close(): void {
+  sendSync("op_worker_close");
+}