Allow apps with background pages to request process-per-app-instance.

chrome/test/data/extensions/api_test/app_background_page/no_js/test.js

Index: chrome/test/data/extensions/api_test/app_background_page/no_js/test.js
diff --git a/chrome/test/data/extensions/api_test/app_background_page/no_js/test.js b/chrome/test/data/extensions/api_test/app_background_page/no_js/test.js
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+// Copyright (c) 2012 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.
+
+// This test checks that setting allow_js_access to false is effective:
+// - A background page is opened via the manifest (which is verified by the
+//   AppBackgroundPageApiTest.NoJsManifestBackgroundPage code).
+// - A live (web-extent) web page is loaded (a.html), which tries to opens a
+//   background page.  This fails because allow_js_access is false.
+
+var pagePrefix =
+    'http://a.com:PORT/files/extensions/api_test/app_background_page/common';
+
+// Dispatch "tunneled" functions from the live web pages to this testing page.
+chrome.extension.onRequest.addListener(function(request) {
+  window[request.name](request.args);
+});
+
+// At no point should a window be created that contains the background page
+// (bg.html).
+chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
+  if (tab.url.match("bg\.html$")) {
+    chrome.test.notifyFail("popup opened instead of background page");
+  }
+});
+
+// Start the test by opening the first page in the app. This will try to create
+// a background page whose name is "bg", but it should not replace the
+// background page created by the manifest (named "background").
+window.onload = function() {
+  // We wait for window.onload before getting the test config.  If the
+  // config is requested before onload, then sometimes onload has already
+  // fired by the time chrome.test.getConfig()'s callback runs.
+  chrome.test.getConfig(function(config) {
+    var aUrl =
+        pagePrefix.replace(/PORT/, config.testServer.port) + '/a.html';
+    chrome.tabs.create({ 'url': aUrl });
+  });
+}
+
+// Background page opened.
+function onBackgroundPageLoaded() {
+  // The window.open call in a.html should not succeed.
+  chrome.test.notifyFail("Background page unexpectedly loaded.");
+}
+
+function onBackgroundPagePermissionDenied() {
+  // a.html will call this if it receives null from window.open, as we expect.
+  chrome.test.notifyPass();
+}
+
+// A second background page opened.
+function onBackgroundPageResponded() {
+  chrome.test.notifyFail("onBackgroundPageResponded called unexpectedly");
+}
+
+// The background counter check found an unexpected value (most likely caused
+// by an unwanted navigation).
+function onCounterError() {
+  chrome.test.notifyFail("checkCounter found an unexpected value");
+}