[MD History] Fix item selection when deleting via menu item.

chrome/browser/resources/md_history/list_container.js

Index: chrome/browser/resources/md_history/list_container.js
diff --git a/chrome/browser/resources/md_history/list_container.js b/chrome/browser/resources/md_history/list_container.js
index 72aaa61d2af3307eb91304fa5f7985617ed113f3..24c911e1f5c6e48417f46aba576f9ed4e08a3c4c 100644
--- a/chrome/browser/resources/md_history/list_container.js
+++ b/chrome/browser/resources/md_history/list_container.js
@@ -238,11 +238,11 @@ Polymer({
     var itemData = menu.itemData;
     browserService.deleteItems([itemData.item])
         .then(function(items) {
-          this.getSelectedList_().removeItemsByPath([itemData.path]);
           // This unselect-all is to reset the toolbar when deleting a selected

[tsergeant, 2016/09/29 01:45:01]

While you're here, can you please update this comment? Clearing the selection is
now needed because selection state becomes invalid when items move around.

[calamity, 2016/09/29 03:06:23]

Done.

           // item. TODO(tsergeant): Make this automatic based on observing list
           // modifications.
           this.fire('unselect-all');
+          this.getSelectedList_().removeItemsByPath([itemData.path]);
 
           var index = itemData.index;
           if (index == undefined)