Enable webview tag in webui

extensions/browser/guest_view/mime_handler_view/mime_handler_view_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/mime_handler_view/mime_handler_view_guest.h"
 
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/url_constants.h"
@@ skipping 41 matching lines @@
 }
 
 int MimeHandlerViewGuest::GetTaskPrefix() const {
   return IDS_EXTENSION_TASK_MANAGER_MIMEHANDLERVIEW_TAG_PREFIX;
 }
 
 // |embedder_extension_id| is empty for mime handler view.
 void MimeHandlerViewGuest::CreateWebContents(
     const std::string& embedder_extension_id,
     int embedder_render_process_id,
+    const GURL& embedder_site_url,
     const base::DictionaryValue& create_params,
     const WebContentsCreatedCallback& callback) {
   std::string orig_mime_type;
   create_params.GetString(mime_handler_view::kMimeType, &orig_mime_type);
   DCHECK(!orig_mime_type.empty());
 
   std::string extension_src;
   create_params.GetString(mime_handler_view::kSrc, &extension_src);
   DCHECK(!extension_src.empty());
 
@@ skipping 56 matching lines @@
   // TODO(fsamuel): This introduces the possibility of out-of-order keyboard
   // events because the guest may be arbitrarily delayed when responding to
   // keyboard events. In that time, the embedder may have received and processed
   // additional key events. This needs to be fixed as soon as possible.
   // See http://crbug.com/229882.
   embedder_web_contents()->GetDelegate()->HandleKeyboardEvent(web_contents(),
                                                               event);
 }
 
 }  // namespace extensions