[MD History] Fix issues caused by refactor.

chrome/browser/resources/md_history/app.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-app',
 
   properties: {
     // The id of the currently selected page.
     selectedPage_: {type: String, value: 'history', observer: 'unselectAll'},
 
     // Whether domain-grouped history is enabled.
     grouped_: {type: Boolean, reflectToAttribute: true},
 
     /** @type {!QueryState} */
     queryState_: {
       type: Object,
       value: function() {
         return {
           // Whether the most recent query was incremental.
           incremental: false,
           // A query is initiated by page load.
           querying: true,
-          queryingDisabled: Boolean,
+          queryingDisabled: false,
           _range: HistoryRange.ALL_TIME,
           searchTerm: '',
           // TODO(calamity): Make history toolbar buttons change the offset
           groupedOffset: 0,
 
           set range(val) { this._range = Number(val); },
           get range() { return this._range; },
         };
       }
     },
 
-    sessionList: Array,
+   /** @type {!QueryResult} */
+    queryResult_: {
+      type: Object,
+      value: function() {
+        return {
+          info: null,
+          results: null,
+          sessionList: null,
+        };
+      }
+    },
   },
 
   listeners: {
     'cr-menu-tap': 'onMenuTap_',
     'history-checkbox-select': 'checkboxSelected',
     'unselect-all': 'unselectAll',
     'delete-selected': 'deleteSelected',
     'search-domain': 'searchDomain_',
   },
 
@@ skipping 42 matching lines @@
         .deleteSelected();
   },
 
   /**
    * @param {HistoryQuery} info An object containing information about the
    *    query.
    * @param {!Array<HistoryEntry>} results A list of results.
    */
   historyResult: function(info, results) {
     this.set('queryState_.querying', false);
+    this.set('queryResult_.info', info);
+    this.set('queryResult_.results', results);
     var listContainer =
         /** @type {HistoryListContainerElement} */ (this.$['history']);
     listContainer.historyResult(info, results);
   },
 
   /**
    * Fired when the user presses 'More from this site'.
    * @param {{detail: {domain: string}}} e
    */
   searchDomain_: function(e) { this.$.toolbar.setSearchTerm(e.detail.domain); },
 
   /**
    * @param {!Array<!ForeignSession>} sessionList Array of objects describing
    *     the sessions from other devices.
    * @param {boolean} isTabSyncEnabled Is tab sync enabled for this profile?
    */
   setForeignSessions: function(sessionList, isTabSyncEnabled) {
     if (!isTabSyncEnabled)
       return;
 
-    this.sessionList = sessionList;
+    this.set('queryResult_.sessionList', sessionList);
   },
 
   /**
    * Update sign in state of synced device manager after user logs in or out.
    * @param {boolean} isUserSignedIn
    */
   updateSignInState: function(isUserSignedIn) {
     var syncedDeviceManagerElem =
       /** @type {HistorySyncedDeviceManagerElement} */this
           .$$('history-synced-device-manager');
@@ skipping 14 matching lines @@
    * @param {boolean} incremental
    * @param {string} searchTerm
    * @return {boolean} Whether a loading spinner should be shown (implies the
    *     backend is querying a new search term).
    * @private
    */
   shouldShowSpinner_: function(querying, incremental, searchTerm) {
     return querying && !incremental && searchTerm != '';
   },
 });