text: // Copyright 2011 The Closure Library Authors. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //      http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS-IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  /**
   * @fileoverview Provides data persistence using HTML5 local storage
   * mechanism. Local storage must be available under window.localStorage,
   * see: http://www.w3.org/TR/webstorage/#the-localstorage-attribute.
   *
   */
  
  goog.provide('goog.storage.mechanism.HTML5LocalStorage');
  
  goog.require('goog.storage.mechanism.HTML5WebStorage');
  
  
  
  /**
   * Provides a storage mechanism that uses HTML5 local storage.
   *
   * @constructor
   * @extends {goog.storage.mechanism.HTML5WebStorage}
   */
  goog.storage.mechanism.HTML5LocalStorage = function() {
    var storage = null;
    /** @preserveTry */
    try {
      // May throw an exception in cases where the local storage object
      // is visible but access to it is disabled.
      storage = window.localStorage || null;
    } catch (e) {}
    goog.storage.mechanism.HTML5LocalStorage.base(this, 'constructor', storage);
  };
  goog.inherits(goog.storage.mechanism.HTML5LocalStorage,
                goog.storage.mechanism.HTML5WebStorage);
  