Convert another batch of extension tests to manifest_version 2

chrome/test/data/extensions/api_test/websocket/test.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+chrome.test.runTests([
+  function echoTest() {
+    var ws = new WebSocket(
+        "ws://localhost:8880/websocket/tests/hybi/workers/resources/echo");
+    var MESSAGE_A = "message a";
+    var MESSAGE_B = "message b";
+
+    ws.onopen = function() {
+      chrome.test.log("websocket opened.");
+      ws.send(MESSAGE_A);
+    };
+
+    ws.onclose = function() {
+      chrome.test.log("websocket closed.");
+    }
+
+    ws.onmessage = function(messageEvent) {
+      chrome.test.log("message received: " + messageEvent.data);
+      chrome.test.assertEq(MESSAGE_A, messageEvent.data);
+
+      ws.onmessage = function(messageEvent) {
+        chrome.test.log("message received: " + messageEvent.data);
+        chrome.test.assertEq(MESSAGE_B, messageEvent.data);
+        ws.close();
+
+        chrome.test.succeed();
+      };
+
+      ws.send(MESSAGE_B);
+    };
+  }
+]);