[MD History] Close delete items dialog when a new query is initiated.

chrome/browser/resources/md_history/list_container.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-list-container',
 
   properties: {
     // The path of the currently selected page.
     selectedPage_: String,
@@ skipping 47 matching lines @@
     var queryState = this.queryState;
     // Disable querying until the first set of results have been returned. If
     // there is a search, query immediately to support search query params from
     // the URL.
     var noResults = !this.queryResult || this.queryResult.results == null;
     if (queryState.queryingDisabled ||
         (!this.queryState.searchTerm && noResults)) {
       return;
     }
 
+    // Close any open dialog if a new query is initiated.
+    if (!incremental)
+      this.$.dialog.close();
+
     this.set('queryState.querying', true);
     this.set('queryState.incremental', incremental);
 
-
     var lastVisitTime = 0;
     if (incremental) {
       var lastVisit = this.queryResult.results.slice(-1)[0];
       lastVisitTime = lastVisit ? lastVisit.time : 0;
     }
 
     var maxResults =
       queryState.range == HistoryRange.ALL_TIME ? RESULTS_PER_PAGE : 0;
     chrome.send('queryHistory', [
       queryState.searchTerm, queryState.groupedOffset, queryState.range,
@@ skipping 24 matching lines @@
   groupedRangeChanged_: function(range) {
     this.selectedPage_ = this.queryState.range == HistoryRange.ALL_TIME ?
       'infinite-list' : 'grouped-list';
 
     this.queryHistory(false);
   },
 
   /** @private */
   loadMoreHistory_: function() { this.queryHistory(true); },
 
-
   /**
    * @param {HistoryQuery} info
    * @param {!Array<HistoryEntry>} results
    * @private
    */
   initializeResults_: function(info, results) {
     if (results.length == 0)
       return;
 
     var currentDate = results[0].dateRelativeDay;
@@ skipping 56 matching lines @@
         .then(function(items) {
           this.$['infinite-list'].removeDeletedHistory_(items);
           // This unselect-all is to reset the toolbar when deleting a selected
           // item. TODO(tsergeant): Make this automatic based on observing list
           // modifications.
           this.fire('unselect-all');
         }.bind(this));
     menu.closeMenu();
   },
 });