Make extensions use a correct same-origin check.

extensions/browser/guest_view/extension_options/extension_options_guest.cc

 // Copyright 2014 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.
 
 #include "extensions/browser/guest_view/extension_options/extension_options_guest.h"
 
 #include <utility>
 
 #include "base/values.h"
 #include "components/crx_file/id_util.h"
@@ skipping 213 matching lines @@
 void ExtensionOptionsGuest::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   if (attached()) {
     auto guest_zoom_controller =
         ui_zoom::ZoomController::FromWebContents(web_contents());
     guest_zoom_controller->SetZoomMode(
         ui_zoom::ZoomController::ZOOM_MODE_ISOLATED);
     SetGuestZoomLevelToMatchEmbedder();
 
-    if (params.url.GetOrigin() != options_page_.GetOrigin()) {
+    if (!url::IsSameOriginWith(params.url, options_page_)) {
       bad_message::ReceivedBadMessage(web_contents()->GetRenderProcessHost(),
                                       bad_message::EOG_BAD_ORIGIN);
     }
   }
 }
 
 }  // namespace extensions