Add support for split PSL list distinctions.

net/tools/tld_cleanup/tld_cleanup.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
-      'target_name': 'tld_cleanup',
-      'type': 'executable',
+      'target_name': 'tld_cleanup_util',
+      'type': 'static_library',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../build/temp_gyp/googleurl.gyp:googleurl',
       ],
       'sources': [
-        'tld_cleanup.cc',
+        'tld_cleanup_util.h',
+        'tld_cleanup_util.cc',
       ],
     },
   ],
 }