[MD settings] do not send embedded origin when editing

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

 // Copyright 2017 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.
 
 /**
  * @fileoverview 'settings-edit-exception-dialog' is a component for editing a
  * site exception entry.
  */
 Polymer({
   is: 'settings-edit-exception-dialog',
@@ skipping 33 matching lines @@
   onCancelTap_: function() {
     this.$.dialog.close();
   },
 
   /** @private */
   onActionButtonTap_: function() {
     if (this.model.origin != this.origin_) {
       // The way to "edit" an exception is to remove it and and a new one.
       this.browserProxy_.resetCategoryPermissionForOrigin(
           this.model.origin,
-          this.model.embeddingOrigin,
-          this.model.category,
-          this.model.incognito);
+          '',  // Do not send an embeddedOrigin when editing.
+          this.model.category, this.model.incognito);
 
       this.browserProxy_.setCategoryPermissionForOrigin(
           this.origin_,
           this.origin_,
           this.model.category,
           this.model.setting,
           this.model.incognito);
     }
 
     this.$.dialog.close();
   },
 
   /** @private */
   validate_: function() {
     if (this.$$('paper-input').value.trim() == '') {
       this.invalid_ = true;
       return;
     }
 
     this.browserProxy_.isPatternValid(this.origin_).then(function(isValid) {
       this.invalid_ = !isValid;
     }.bind(this));
   },
 });