Remove util.platform from Files app.

ui/file_manager/file_manager/common/js/util.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.
 
 'use strict';
 
 /**
  * Namespace for utility functions.
  */
 var util = {};
@@ skipping 338 matching lines @@
 
   // Minimum values for the units above.
   var STEPS = [0,
                Math.pow(2, 10),
                Math.pow(2, 20),
                Math.pow(2, 30),
                Math.pow(2, 40),
                Math.pow(2, 50)];
 
   var str = function(n, u) {
-    // TODO(rginda): Switch to v8Locale's number formatter when it's
-    // available.
     return strf(u, n.toLocaleString());
   };
 
   var fmt = function(s, u) {
     var rounded = Math.round(bytes / s * 10) / 10;
     return str(rounded, u);
   };
 
   // Less than 1KB is displayed like '80 bytes'.
   if (bytes < STEPS[1]) {
@@ skipping 196 matching lines @@
  *
  * @param {string} id The id of the string to return.
  * @param {...string} var_args The values to replace into the string.
  * @return {string} The translated string with replaced values.
  */
 function strf(id, var_args) {
   return loadTimeData.getStringF.apply(loadTimeData, arguments);
 }
 
 /**
- * Adapter object that abstracts away the the difference between Chrome app APIs
- * v1 and v2. Is only necessary while the migration to v2 APIs is in progress.
- * TODO(mtomasz): Clean up this. crbug.com/240606.
+ * @return {boolean} True if Files.app is running as an open files or a select
+ *     folder dialog. False otherwise.
  */
-util.platform = {
-  /**
-   * @return {boolean} True if Files.app is running as an open files or a select
-   *     folder dialog. False otherwise.
-   */
-  runningInBrowser: function() {
-    return !window.appID;
-  },
-
-  /**
-   * @param {function(Object)} callback Function accepting a preference map.
-   */
-  getPreferences: function(callback) {
-    chrome.storage.local.get(callback);
-  },
-
-  /**
-   * @param {string} key Preference name.
-   * @param {function(string)} callback Function accepting the preference value.
-   */
-  getPreference: function(key, callback) {
-    chrome.storage.local.get(key, function(items) {
-      callback(items[key]);
-    });
-  },
-
-  /**
-   * @param {string} key Preference name.
-   * @param {string|Object} value Preference value.
-   * @param {function()=} opt_callback Completion callback.
-   */
-  setPreference: function(key, value, opt_callback) {
-    if (typeof value != 'string')
-      value = JSON.stringify(value);
-
-    var items = {};
-    items[key] = value;
-    chrome.storage.local.set(items, opt_callback);
-  }
+util.runningInBrowser = function() {
+  return !window.appID;
 };
 
 /**
  * Attach page load handler.
  * @param {function()} handler Application-specific load handler.
  */
 util.addPageLoadHandler = function(handler) {
   document.addEventListener('DOMContentLoaded', function() {
     handler();
   });
 };
 
 /**
  * Save app launch data to the local storage.
  */
 util.saveAppState = function() {
-  if (window.appState)
-    util.platform.setPreference(window.appID, window.appState);
+  if (!window.appState)
+    return;
+  var items = {};
+
+  items[window.appID] = JSON.stringify(window.appState);
+  chrome.storage.local.set(items);
 };
 
 /**
  *  AppCache is a persistent timestamped key-value storage backed by
  *  HTML5 local storage.
  *
  *  It is not designed for frequent access. In order to avoid costly
  *  localStorage iteration all data is kept in a single localStorage item.
  *  There is no in-memory caching, so concurrent access is _almost_ safe.
  *
@@ skipping 50 matching lines @@
     util.AppCache.write_(map);
   });
 };
 
 /**
  * @param {function(Object)} callback Callback accepting a map of timestamped
  *   key-value pairs.
  * @private
  */
 util.AppCache.read_ = function(callback) {
-  util.platform.getPreference(util.AppCache.KEY, function(json) {
+  chrome.storage.local.getPreference(util.AppCache.KEY, function(json) {
     if (json) {
       try {
         callback(JSON.parse(json));
       } catch (e) {
         // The local storage item somehow got messed up, start fresh.
       }
     }
     callback({});
   });
 };
 
 /**
  * @param {Object} map A map of timestamped key-value pairs.
  * @private
  */
 util.AppCache.write_ = function(map) {
-  util.platform.setPreference(util.AppCache.KEY, JSON.stringify(map));
+  var items = {};
+  items[util.AppCache.KEY] = JSON.stringify(map);
+  chrome.storage.local.set(items);
 };
 
 /**
  * Remove over-capacity and obsolete items.
  *
  * @param {Object} map A map of timestamped key-value pairs.
  * @private
  */
 util.AppCache.cleanup_ = function(map) {
   // Sort keys by ascending timestamps.
@@ skipping 615 matching lines @@
         parentEntry.toURL(),
         name,
         function(valid) {
           if (valid)
             fulfill();
           else
             reject(str('ERROR_LONG_NAME'));
         });
   });
 };