Fix js style issues.

chrome/browser/resources/chromeos/chromevox/host/chrome/braille_table.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.
 
 /**
  * @fileoverview Holds information about a braille table.
  */
 
 goog.provide('cvox.BrailleTable');
 
@@ skipping 12 matching lines @@
 
 /**
  * @const {string}
  */
 cvox.BrailleTable.TABLE_PATH = 'chromevox/background/braille/tables.json';
 
 
 /**
  * Retrieves a list of all available braille tables.
  * @param {function(!Array.<cvox.BrailleTable.Table>)} callback
+ *     Called asynchronously with an array of tables.
  */
 cvox.BrailleTable.getAll = function(callback) {
   var url = chrome.extension.getURL(cvox.BrailleTable.TABLE_PATH);
   if (!url) {
     throw 'Invalid path: ' + cvox.BrailleTable.TABLE_PATH;
   }
 
   var xhr = new XMLHttpRequest();
   xhr.open('GET', url, true);
   xhr.onreadystatechange = function() {
     if (xhr.readyState == 4) {
       if (xhr.status == 200) {
         callback(/** @type {!Array.<cvox.BrailleTable.Table>} */ (
             JSON.parse(xhr.responseText)));
       }
     }
   };
   xhr.send();
 };
 
 
 /**
  * Finds a table in a list of tables by id.
  * @param {!Array.<cvox.BrailleTable.Table>} tables tables to search in.
  * @param {string} id id of table to find.
- * @return {cvox.BrailleTable.Table}
+ * @return {cvox.BrailleTable.Table} The found table, or null if not found.
  */
 cvox.BrailleTable.forId = function(tables, id) {
   return tables.filter(function(table) { return table.id === id })[0] || null;
 };
 
 
 /**
  * Returns an uncontracted braille table corresponding to another, possibly
  * contracted, table.  If {@code table} is the lowest-grade table for its
  * locale and dot count, {@code table} itself is returned.
@@ skipping 15 matching lines @@
         current.dots === candidate.dots &&
         goog.isDef(current.grade) &&
         goog.isDef(candidate.grade) &&
         candidate.grade < current.grade) {
       return candidate;
     }
     return current;
   }
   return tables.reduce(mostUncontractedOf, table);
 };