Move another set of extension tests to manifest_version 2

chrome/test/data/extensions/api_test/stubs/background.js

Index: chrome/test/data/extensions/api_test/stubs/background.js
===================================================================
--- chrome/test/data/extensions/api_test/stubs/background.js	(revision 0)
+++ chrome/test/data/extensions/api_test/stubs/background.js	(revision 0)
@@ -0,0 +1,18 @@
+// 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.extension.onRequest.addListener(function(msg, sender, responseFunc) {
+  if (msg == "getApi") {
+    responseFunc(chrome.test.getApiDefinitions());
+  } else if (msg == "pass") {
+    chrome.test.notifyPass();
+  } else if (msg.substr(0, 3) == "log") {
+    chrome.test.log(msg);
+  } else {
+    chrome.test.notifyFail("failed");
+  }
+});
+
+// On first install, send a success message so the test can continue.
+chrome.test.notifyPass();