Upstream service worker `postMessage` tests to WPT

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/postmessage-worker.js

Index: third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/postmessage-worker.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/postmessage-worker.js b/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/postmessage-worker.js
deleted file mode 100644
index 858cf04267c24cf888dbfe8f52d18162f0c2f48e..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/postmessage-worker.js
+++ /dev/null
@@ -1,19 +0,0 @@
-var port;
-
-// Exercise the 'onmessage' handler:
-self.onmessage = function(e) {
-  var message = e.data;
-  if ('port' in message) {
-    port = message.port;
-  }
-};
-
-// And an event listener:
-self.addEventListener('message', function(e) {
-    var message = e.data;
-    if ('value' in message) {
-      port.postMessage('Acking value: ' + message.value);
-    } else if ('done' in message) {
-      port.postMessage('quit');
-    }
-  });