Rename ChromeVox tests and utilities for consistency.

chrome/browser/resources/chromeos/chromevox/common/selection_util_test.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.
-
-// Include test fixture.
-GEN_INCLUDE(['../testing/chromevox_unittest_base.js']);
-
-/**
- * Test fixture.
- * @constructor
- * @extends {ChromeVoxUnitTestBase}
- */
-function CvoxSelectionUtilUnitTest() {}
-
-CvoxSelectionUtilUnitTest.prototype = {
-  __proto__: ChromeVoxUnitTestBase.prototype,
-
-  /** @override */
-  closureModuleDeps: [
-    'cvox.SelectionUtil'
-  ]
-};
-
-TEST_F('CvoxSelectionUtilUnitTest', 'SimpleFindPos', function() {
-  this.loadDoc(function() {/*!
-    <div id="foo" style="position:absolute;top:50px">
-    </div>
-  */});
-  element = $('foo');
-  assertEquals(cvox.SelectionUtil.findPos_(element)[1], 50);
-});