MD Settings: Close action menu when opening edit cookie exception dialog.

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 431 matching lines @@
   },
 
   /** @private */
   onSessionOnlyTap_: function() {
     this.onActionMenuActivate_(settings.PermissionValues.SESSION_ONLY);
     this.closeActionMenu_();
   },
 
   /** @private */
   onEditTap_: function() {
+    // Close action menu without resetting |this.actionMenuSite_| since it is
+    // bound to the dialog.
+    /** @type {!CrActionMenuElement} */ (
+        this.$$('dialog[is=cr-action-menu]')).close();
     this.showEditExceptionDialog_ = true;
   },
 
   /** @private */
   onEditExceptionDialogClosed_: function() {
     this.showEditExceptionDialog_ = false;
-    // Close action menu after dialog has been closed, otherwise
-    // |actionMenuSite_| is reset while the dialog is still accessing it.
-    this.closeActionMenu_();
+    this.actionMenuSite_ = null;
   },
 
   /** @private */
   onResetTap_: function() {
     this.onActionMenuActivate_(settings.PermissionValues.DEFAULT);
     this.closeActionMenu_();
   },
 
   /**
    * Returns the appropriate site description to display. This can, for example,
@@ skipping 27 matching lines @@
 
   /** @private */
   closeActionMenu_: function() {
     this.actionMenuSite_ = null;
     var actionMenu = /** @type {!CrActionMenuElement} */ (
         this.$$('dialog[is=cr-action-menu]'));
     if (actionMenu.open)
       actionMenu.close();
   },
 });