MD Settings: Site exceptions, close action menu when list changes.

chrome/browser/resources/settings/site_settings/site_list.js

 // Copyright 2015 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 mapping all possible controlled-by values for exceptions to
  * icons.
  * @enum {string}
  */
 var iconControlledBy = {
@@ skipping 205 matching lines @@
   },
 
   /**
    * Populate the sites list for display.
    * @private
    */
   populateList_: function() {
     if (this.allSites) {
       this.getAllSitesList_().then(function(lists) {
         this.processExceptions_(lists);
+        this.closeActionMenu_();
       }.bind(this));
     } else {
       this.browserProxy_.getExceptionList(this.category).then(
         function(exceptionList) {
           this.processExceptions_([exceptionList]);
+          this.closeActionMenu_();
       }.bind(this));
     }
   },
 
   /**
    * Process the exception list returned from the native layer.
    * @param {!Array<!Array<SiteException>>} data List of sites (exceptions) to
    *     process.
    * @private
    */
@@ skipping 217 matching lines @@
     this.actionMenuSite_ = e.model.item;
     /** @type {!CrActionMenuElement} */ (
         this.$$('dialog[is=cr-action-menu]')).showAt(
             /** @type {!Element} */ (
                 Polymer.dom(/** @type {!Event} */ (e)).localTarget));
   },
 
   /** @private */
   closeActionMenu_: function() {
     this.actionMenuSite_ = null;
-    /** @type {!CrActionMenuElement} */ (
-        this.$$('dialog[is=cr-action-menu]')).close();
+    var actionMenu = /** @type {!CrActionMenuElement} */ (
+        this.$$('dialog[is=cr-action-menu]'));
+    if (actionMenu.open)
+      actionMenu.close();
   },
 });