MD History: Synced Tabs fixes

chrome/browser/resources/md_history/synced_device_card.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.
 
 Polymer({
   is: 'history-synced-device-card',
 
   properties: {
     // Name of the synced device.
     device: String,
@@ skipping 13 matching lines @@
 
     /**
      * The indexes where a window separator should be shown. The use of a
      * separate array here is necessary for window separators to appear
      * correctly in search. See http://crrev.com/2022003002 for more details.
      * @type {!Array<number>}
      */
     separatorIndexes: Array,
 
     // Whether the card is open.
-    cardOpen_: {type: Boolean, value: true},
+    opened: Boolean,
 
     searchTerm: String,
 
     // Internal identifier for the device.
     sessionTag: String,
   },
 
   /**
    * Open a single synced tab. Listens to 'click' rather than 'tap'
    * to determine what modifier keys were pressed.
@@ skipping 31 matching lines @@
       }
     });
   },
 
   /** @private */
   isWindowSeparatorIndex_: function(index, separatorIndexes) {
     return this.separatorIndexes.indexOf(index) != -1;
   },
 
   /**
-   * @param {boolean} cardOpen
+   * @param {boolean} opened
    * @return {string}
+   * @private
    */
-  getCollapseTitle_: function(cardOpen) {
-    return cardOpen ? loadTimeData.getString('collapseSessionButton') :
-                      loadTimeData.getString('expandSessionButton');
+  getCollapseIcon_: function(opened) {
+    return opened ? 'cr:expand-less' : 'cr:expand-more';
   },
 
   /**
+   * @param {boolean} opened
+   * @return {string}
+   * @private
+   */
+  getCollapseTitle_: function(opened) {
+    return opened ? loadTimeData.getString('collapseSessionButton') :
+                    loadTimeData.getString('expandSessionButton');
+  },
+
+  /**
    * @param {CustomEvent} e
    * @private
    */
   onMenuButtonTap_: function(e) {
     this.fire('toggle-menu', {
       target: Polymer.dom(e).localTarget,
       tag: this.sessionTag
     });
     e.stopPropagation();  // Prevent iron-collapse.
   },
 });