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

chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc

Index: chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc
diff --git a/chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc b/chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc
index 6b357b138e6dcaae6aefa6605fa8c6803ae3ad7f..7cb9fa236a1f8729ea3c3f6ba49cbcab85c0e452 100644
--- a/chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc
+++ b/chrome/browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc
@@ -257,11 +257,11 @@ class BookmarkEditorGtk::ContextMenuController
 };
 
 // static
-void BookmarkEditor::Show(gfx::NativeWindow parent_hwnd,
-                          Profile* profile,
-                          const BookmarkNode* parent,
-                          const EditDetails& details,
-                          Configuration configuration) {
+void BookmarkEditor::ShowNative(gfx::NativeWindow parent_hwnd,
+                                Profile* profile,
+                                const BookmarkNode* parent,
+                                const EditDetails& details,
+                                Configuration configuration) {
   DCHECK(profile);
   BookmarkEditorGtk* editor =
       new BookmarkEditorGtk(parent_hwnd, profile, parent, details,