Move a bunch of extension API tests to manifest_version 2.

chrome/test/data/extensions/api_test/browser_action/no_icon/background.js

Index: chrome/test/data/extensions/api_test/browser_action/no_icon/background.js
===================================================================
--- chrome/test/data/extensions/api_test/browser_action/no_icon/background.js	(revision 0)
+++ chrome/test/data/extensions/api_test/browser_action/no_icon/background.js	(revision 0)
@@ -0,0 +1,10 @@
+// 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.
+
+// Called when the user clicks on the browser action.
+chrome.browserAction.onClicked.addListener(function(windowId) {
+  chrome.tabs.executeScript(null, {code:"document.body.bgColor='red'"});
+});
+
+chrome.test.notifyPass();