Fix some JS style nits.

chrome/common/extensions/docs/examples/api/webNavigation/basic/navigation_collector.js

 // 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.
 
 /**
  * Implements the NavigationCollector object that powers the extension.
  *
  * @author mkwst@google.com (Mike West)
  */
 
 /**
  * Collects navigation events, and provides a list of successful requests
  * that you can do interesting things with. Calling the constructor will
  * automatically bind handlers to the relevant webnavigation API events,
  * and to a `getMostRequestedUrls` extension message for internal
  * communication between background pages and popups.
  *
  * @constructor
  */
 function NavigationCollector() {
   /**
    * A list of currently pending requests, implemented as a hash of each
    * request's tab ID, frame ID, and URL in order to ensure uniqueness.
    *
-   * @type {Object.<string, {start: number}>}
+   * @type {Object<string, {start: number}>}
    * @private
    */
   this.pending_ = {};
 
   /**
    * A list of completed requests, implemented as a hash of each
    * request's tab ID, frame ID, and URL in order to ensure uniqueness.
    *
-   * @type {Object.<string, Array.<NavigationCollector.Request>>}
+   * @type {Object<string, Array<NavigationCollector.Request>>}
    * @private
    */
   this.completed_ = {};
 
   /**
    * A list of requests that errored off, implemented as a hash of each
    * request's tab ID, frame ID, and URL in order to ensure uniqueness.
    *
-   * @type {Object.<string, Array.<NavigationCollector.Request>>}
+   * @type {Object<string, Array<NavigationCollector.Request>>}
    * @private
    */
   this.errored_ = {};
 
   // Bind handlers to the 'webNavigation' events that we're interested
   // in handling in order to build up a complete picture of the whole
   // navigation event.
   chrome.webNavigation.onCreatedNavigationTarget.addListener(
       this.onCreatedNavigationTargetListener_.bind(this));
   chrome.webNavigation.onBeforeNavigate.addListener(
@@ skipping 53 matching lines @@
  * @enum {string}
  */
 NavigationCollector.NavigationQualifier = {
   CLIENT_REDIRECT: 'client_redirect',
   FORWARD_BACK: 'forward_back',
   SERVER_REDIRECT: 'server_redirect'
 };
 
 /**
  * @typedef {{url: string, transitionType: NavigationCollector.NavigationType,
- *     transitionQualifier: Array.<NavigationCollector.NavigationQualifier>,
+ *     transitionQualifier: Array<NavigationCollector.NavigationQualifier>,
  *     openedInNewTab: boolean, source: {frameId: ?number, tabId: ?number},
  *     duration: number}}
  */
 NavigationCollector.Request;
 
 ///////////////////////////////////////////////////////////////////////////////
 
 NavigationCollector.prototype = {
   /**
    * Returns a somewhat unique ID for a given WebNavigation request.
@@ skipping 279 matching lines @@
   onMessageListener_: function(message, sender, sendResponse) {
     if (message.type === 'getMostRequestedUrls')
       sendResponse({result: this.getMostRequestedUrls(message.num)});
     else
       sendResponse({});
   },
 
 ///////////////////////////////////////////////////////////////////////////////
 
   /**
-   * @return {Object.<string, NavigationCollector.Request>} The complete list of
+   * @return {Object<string, NavigationCollector.Request>} The complete list of
    *     successful navigation requests.
    */
   get completed() {
     return this.completed_;
   },
 
 
   /**
-   * @return {Object.<string, Navigationcollector.Request>} The complete list of
+   * @return {Object<string, Navigationcollector.Request>} The complete list of
    *     unsuccessful navigation requests.
    */
   get errored() {
     return this.errored_;
   },
 
 
   /**
    * Get a list of the X most requested URLs.
    *
    * @param {number=} num The number of successful navigation requests to
    *     return. If 0 is passed in, or the argument left off entirely, all
    *     successful requests are returned.
-   * @return {Object.<string, NavigationCollector.Request>} The list of
+   * @return {Object<string, NavigationCollector.Request>} The list of
    *     successful navigation requests, sorted in decending order of frequency.
    */
   getMostRequestedUrls: function(num) {
     return this.getMostFrequentUrls_(this.completed, num);
   },
 
 
   /**
    * Get a list of the X most errored URLs.
    *
    * @param {number=} num The number of unsuccessful navigation requests to
    *     return. If 0 is passed in, or the argument left off entirely, all
    *     successful requests are returned.
-   * @return {Object.<string, NavigationCollector.Request>} The list of
+   * @return {Object<string, NavigationCollector.Request>} The list of
    *     unsuccessful navigation requests, sorted in decending order
    *     of frequency.
    */
   getMostErroredUrls: function(num) {
     return this.getMostErroredUrls_(this.errored, num);
   },
 
 
   /**
    * Get a list of the most frequent URLs in a list.
    *
    * @param {NavigationCollector.Request} list A list of URLs to parse.
    * @param {number=} num The number of navigation requests to return. If
    *     0 is passed in, or the argument left off entirely, all requests
    *     are returned.
-   * @return {Object.<string, NavigationCollector.Request>} The list of
+   * @return {Object<string, NavigationCollector.Request>} The list of
    *     navigation requests, sorted in decending order of frequency.
    * @private
    */
   getMostFrequentUrls_: function(list, num) {
     var result = [];
     var avg;
     // Convert the 'completed_' object to an array.
     for (var x in list) {
       avg = 0;
       if (list.hasOwnProperty(x) && list[x].length) {
@@ skipping 10 matching lines @@
       }
     }
     // Sort the array.
     result.sort(function(a, b) {
       return b.numRequests - a.numRequests;
     });
     // Return the requested number of results.
     return num ? result.slice(0, num) : result;
   }
 };