Enable the new bookmark apps system by default.

chrome/browser/extensions/extension_util.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 "chrome/browser/extensions/extension_util.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 342 matching lines @@
   return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       IDR_APP_DEFAULT_ICON);
 }
 
 const gfx::ImageSkia& GetDefaultExtensionIcon() {
   return *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       IDR_EXTENSION_DEFAULT_ICON);
 }
 
 bool IsStreamlinedHostedAppsEnabled() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableStreamlinedHostedApps);
+  return !CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableNewBookmarkApps);
 }
 
 }  // namespace util
 }  // namespace extensions