Fix some JS style nits.

chrome/test/data/extensions/activity_log/ad_injection/content_script.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 file contains the tests for detecting extension's ad injection in
 // Chrome. This contains many different, independent tests, but it is all run
 // as a "single" browser test. The reason for this is that we want to do many
 // short tests for ad injection, and the set-up/tear-down time for a browsertest
 // implementation of each would be prohibitive.
 // See also chrome/browser/extensions/activity_log/ad_injection_browsertest.cc
@@ skipping 37 matching lines @@
  * - Signal that the test is done, and we should check for the result.
  *
  * This cycle repeats, and should be done synchronously so that we don't end up
  * recording events which we shouldn't, and can attribute each event to its
  * cause.
  * @constructor
  */
 function AdInjectorTest(functions) {
   /*
    * The list of functions to run in order to test ad injection.
-   * @type {Array.<Function>}
+   * @type {Array<Function>}
    * @private
    */
   this.functions_ = functions;
 };
 
 AdInjectorTest.prototype = {
   /**
    * The index of the function that is next in line.
    * @type {int}
    * @private
@@ skipping 154 matching lines @@
 var getNestedAd = function() {
   return kNestedAdTemplate.cloneNode(true);
 };
 
 /*
  * The collection of functions to use for testing.
  * In order to add a new test, simply append it to the collection of functions.
  * All functions will be run in the test, and each will report its success or
  * failure independently of the others.
  * All test functions must be synchronous.
- * @type {Array.<Function>}
+ * @type {Array<Function>}
  */
 var functions = [];
 
 // Add a bunch of elements, but nothing that looks like ad injection (no
 // elements with an external source, no modifying existing sources).
 functions.push(function NoAdInjection() {
   var div = document.createElement('div');
   var iframe = document.createElement('iframe');
   var anchor = document.createElement('anchor');
   var span = document.createElement('span');
@@ skipping 149 matching lines @@
   eval(code);
   return INJECTION_NEW_AD;
 });
 
 // TODO(rdevlin.cronin): We are not covering every case yet. Fix this.
 // See crbug.com/357204.
 
 // Kick off the tests.
 var test = new AdInjectorTest(functions);
 test.runNextFunction();