Initial implementation of the <extensionoptions> GuestView tag

chrome/test/data/extensions/api_test/extension_options/embed_self/options.js

+// Copyright 2014 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 script is opened inside a <extensionoptions> guest view. When opened,
+// it sends a message back to the test page, which responds with which test case
+// it is running. The options page then runs the appropriate code for the
+// specified test case.
+chrome.runtime.sendMessage('ready', function(command) {
+  switch (command) {
+    case 'canCreateExtensionOptionsGuest':
+      // To confirm that the guest view has been successfully created,
+      // {pass: true} is added to every extension Window and broadcasts a
+      // message to the extension using runtime.sendMessage().
+      chrome.extension.getViews().forEach(function(view) {
+        view.pass = true;
+      });
+      chrome.runtime.sendMessage('done');
+      break;
+
+    case 'guestCanAccessStorage':
+      // To test access to privileged APIs, the guest attempts to write to local
+      // storage. The guest relays the callbacks for storage.onChanged and
+      // storage.set to the test runner for verification.
+      chrome.storage.onChanged.addListener(function(change) {
+        chrome.runtime.sendMessage({
+          expected: 42,
+          actual: change.test.newValue,
+          description: 'onStorageChanged'
+        });
+      });
+
+      chrome.storage.local.set({'test': 42}, function() {
+        chrome.storage.local.get('test', function(storage) {
+          chrome.runtime.sendMessage({
+            expected: 42,
+            actual: storage.test,
+            description: 'onSetAndGet'
+          });
+        });
+      });
+  }
+});