Storage manager: Add browsing data.

chrome/browser/resources/options/chromeos/storage_manager.js

 // Copyright 2016 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.
 
 /**
  * Enumeration for device state about remaining space.
  * These values must be kept in sync with
  * StorageManagerHandler::StorageSpaceState in C++ code.
  * @enum {number}
  * @const
@@ skipping 33 matching lines @@
     /** @override */
     initializePage: function() {
       Page.prototype.initializePage.call(this);
 
       $('storage-manager-label-downloads').onclick = function() {
         chrome.send('openDownloads');
       };
       $('storage-manager-label-drive-cache').onclick = function() {
         PageManager.showPageByName('storageClearDriveCache');
       };
+      $('storage-manager-label-browsing-data').onclick = function() {
+        PageManager.showPageByName('clearBrowserData');
+      };
       $('storage-manager-label-arc').onclick = function() {
         chrome.send('openArcStorage');
       };
 
       $('storage-confirm').onclick = function() {
         PageManager.closeOverlay();
       };
     },
 
     /** @override */
@@ skipping 35 matching lines @@
      * Updates the size of Google Drive offline files.
      * @param {string} size Formatted string of the size of Google Drive offline
      *     files.
      * @private
      */
     setDriveCacheSize_: function(size) {
       $('storage-manager-size-drive-cache').textContent = size;
     },
 
     /**
+     * Updates the size of browsing data.
+     * @param {string} size Formatted string of the size of Downloads.
+     * @private
+     */
+    setBrowsingDataSize_: function(size) {
+      $('storage-manager-size-browsing-data').textContent = size;
+    },
+
+    /**
      * Updates the total size of Android apps and cache.
      * @param {string} size Formatted string of the size of Android apps and
      * cache.
      * @private
      */
     setArcSize_: function(size) {
       assert(!$('storage-manager-item-arc').hidden);
       $('storage-manager-size-arc').textContent = size;
     },
 
     /**
      * Shows the item "Android apps and cache" on the overlay UI.
      * @private
      */
     showArcItem_: function() {
       $('storage-manager-item-arc').hidden = false;
     },
   };
 
   // Forward public APIs to private implementations.
   cr.makePublic(StorageManager, [
     'setArcSize',
+    'setBrowsingDataSize',
     'setDownloadsSize',
     'setDriveCacheSize',
     'setSizeStat',
     'showArcItem',
   ]);
 
   return {
     StorageManager: StorageManager
   };
 });