Move another block of extension tests to manifest_version 2.

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

Index: chrome/test/data/extensions/api_test/events/background.js
===================================================================
--- chrome/test/data/extensions/api_test/events/background.js	(revision 0)
+++ chrome/test/data/extensions/api_test/events/background.js	(revision 0)
@@ -0,0 +1,55 @@
+// 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([
+  // Tests that attaching and detaching to an event for which we don't have
+  // permission acts as expected (e.g. we don't DCHECK!).
+  function attachAndDetachNoPermisssions() {
+    function dummy() {};
+    try {
+      chrome.tabs.onUpdated.addListener(dummy);
+      chrome.test.fail();
+    } catch (e) {
+      chrome.test.assertTrue(
+          e.message.search("You do not have permission") >= 0,
+          e.message);
+    }
+    chrome.test.assertFalse(chrome.tabs.onUpdated.hasListeners());
+    chrome.tabs.onUpdated.removeListener(dummy);  // browser should not DCHECK
+    chrome.test.succeed();
+  },
+
+  // Tests that attaching a named event twice will fail.
+  function doubleAttach() {
+    function dummy() {};
+    var onClicked = new chrome.Event("browserAction.onClicked");
+    var onClicked2 = new chrome.Event("browserAction.onClicked");
+    onClicked.addListener(dummy);
+    chrome.test.assertTrue(onClicked.hasListeners());
+    try {
+      onClicked2.addListener(dummy);
+      chrome.test.fail();
+    } catch (e) {
+      chrome.test.assertTrue(
+          e.message.search("already attached") >= 0,
+          e.message);
+    }
+    chrome.test.assertFalse(onClicked2.hasListeners());
+    onClicked2.removeListener(dummy);
+
+    onClicked.removeListener(dummy);
+    chrome.test.assertFalse(onClicked.hasListeners());
+    chrome.test.succeed();
+  },
+
+  // Tests that 2 pages attaching to the same event does not trigger a DCHECK.
+  function twoPageAttach() {
+    // Test harness should already have opened tab.html, which registers this
+    // listener.
+    chrome.browserAction.onClicked.addListener(function() {});
+
+    // Test continues in twoPageAttach.html.
+    window.open("twoPageAttach.html");
+  },
+]);