Add --use-more-webui runtime flag to toggle WebUI replacements for native dialogs.

chrome/browser/ui/browser.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 2864 matching lines @@
   BookmarkModel* model = profile()->GetBookmarkModel();
   return (model && model->IsLoaded()) &&
          tab_count() > 1 &&
          profile()->GetPrefs()->GetBoolean(prefs::kEditBookmarksEnabled);
 }
 
 void Browser::BookmarkAllTabs() {
   BookmarkModel* model = profile()->GetBookmarkModel();
   DCHECK(model && model->IsLoaded());
 
-  BookmarkEditor::EditDetails details;
-  details.type = BookmarkEditor::EditDetails::NEW_FOLDER;
+  BookmarkEditor::EditDetails details =
+      BookmarkEditor::EditDetails::AddFolder(model->GetParentForNewNodes());
   bookmark_utils::GetURLsForOpenTabs(this, &(details.urls));
   DCHECK(!details.urls.empty());
 
-  BookmarkEditor::Show(window()->GetNativeHandle(), profile_,
-                       model->GetParentForNewNodes(),  details,
+  BookmarkEditor::Show(window()->GetNativeHandle(), profile_, details,
                        BookmarkEditor::SHOW_TREE);
 }
 
 bool Browser::CanCloseTab() const {
   TabCloseableStateWatcher* watcher =
       g_browser_process->tab_closeable_state_watcher();
   return !watcher || watcher->CanCloseTab(this);
 }
 
 void Browser::ToggleUseVerticalTabs() {
@@ skipping 1982 matching lines @@
 }
 
 void Browser::ShowSyncSetup() {
   ProfileSyncService* service =
       profile()->GetOriginalProfile()->GetProfileSyncService();
   if (service->HasSyncSetupCompleted())
     ShowOptionsTab(chrome::kSyncSetupSubPage);
   else
     service->ShowLoginDialog();
 }