Support basic reading of focus for both desktop and tabs trees.

chrome/browser/resources/chromeos/chromevox/testing/chromevox_e2e_test.js

Index: chrome/browser/resources/chromeos/chromevox/testing/chromevox_e2e_test.js
diff --git a/chrome/browser/resources/chromeos/chromevox2/cvox2/background/background.extjs b/chrome/browser/resources/chromeos/chromevox/testing/chromevox_e2e_test.js
similarity index 54%
copy from chrome/browser/resources/chromeos/chromevox2/cvox2/background/background.extjs
copy to chrome/browser/resources/chromeos/chromevox/testing/chromevox_e2e_test.js
index 496978203f7a0dff573de56916053900955bb0fa..79818240bff952dcb40d30428c45c4c30d2ef320 100644
--- a/chrome/browser/resources/chromeos/chromevox2/cvox2/background/background.extjs
+++ b/chrome/browser/resources/chromeos/chromevox/testing/chromevox_e2e_test.js
@@ -2,18 +2,26 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Include test fixture.
-GEN_INCLUDE(['../../../chromevox/testing/chromevox_unittest_base.js']);
-
 /**
- * Test fixture for cvox2.Background.
+ * Base test fixture for ChromeVox end to end tests.
+ *
+ * These tests run against production ChromeVox inside of the extension's
+ * background page context.
  * @constructor
- * @extends {ChromeVoxUnitTestBase}
  */
-function BackgroundTest() {}
+function ChromeVoxE2ETest() {}
+
+ChromeVoxE2ETest.prototype = {
+  __proto__: testing.Test.prototype,
+
+  /**
+   * @override
+   * No UI in the background context.
+   */
+  runAccessibilityChecks: false,
 
-BackgroundTest.prototype = {
-  __proto__: ChromeVoxUnitTestBase.prototype,
+  /** @override */
+  isAsync: true,
 
   /** @override */
   browsePreload: null,
@@ -47,8 +55,19 @@ BackgroundTest.prototype = {
   }
 };
 
-/** Tests ChromeVox classic is in this context. */
-TEST_F('BackgroundTest', 'ClassicNamespaces', function() {
-  assertEquals('object', typeof(cvox));
-  assertEquals('function', typeof(cvox.ChromeVoxBackground));
-});
+/**
+ * Similar to |TEST_F|. Generates a test for the given |testFixture|,
+ * |testName|, and |testFunction|.
+ * Used this variant when an |isAsync| fixture wants to temporarily mix in an
+ * sync test.
+ * @param {string} testFixture Fixture name.
+ * @param {string} testName Test name.
+ * @param {function} testFunction The test impl.
+ */
+function SYNC_TEST_F(testFixture, testName, testFunction) {
+  var wrappedTestFunction = function() {
+    testFunction();
+    testDone([true, '']);
+  };
+  TEST_F(testFixture, testName, wrappedTestFunction);
+}