Do not assign launch ordinals to ephemeral apps

apps/shell/browser/shell_app_sorting.cc

 // Copyright 2013 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 "apps/shell/browser/shell_app_sorting.h"
 
 #include "sync/api/string_ordinal.h"
 
 namespace {
 
@@ skipping 82 matching lines @@
 int ShellAppSorting::PageStringOrdinalAsInteger(
     const syncer::StringOrdinal& page_ordinal) const {
   return 0;
 }
 
 syncer::StringOrdinal ShellAppSorting::PageIntegerAsStringOrdinal(
     size_t page_index) {
   return syncer::StringOrdinal(kFirstPage);
 }
 
-void ShellAppSorting::MarkExtensionAsHidden(
-    const std::string& extension_id) {
+void ShellAppSorting::SetExtensionVisible(const std::string& extension_id,
+                                          bool visible) {
 }
 
 }  // namespace apps