Factor and simplify generation of the lookup trie used for HTMLLookupTrie.

third_party/WebKit/Source/core/core_generated.gyp

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 714 matching lines @@
           'action': [
             'python',
             '../build/scripts/make_token_matcher.py',
             '../core/html/HTMLMetaElement-in.cpp',
             '<(blink_core_output_dir)/HTMLMetaElement.cpp',
           ],
         },
         {
           'action_name': 'HTMLElementLookupTrie',
           'inputs': [
-            '<@(scripts_for_in_files)',
+            '<@(make_trie_helpers_files)',
             '../build/scripts/make_element_lookup_trie.py',
             '../build/scripts/templates/ElementLookupTrie.cpp.tmpl',
             '../build/scripts/templates/ElementLookupTrie.h.tmpl',
             'html/HTMLTagNames.in',
           ],
           'outputs': [
             '<(blink_core_output_dir)/HTMLElementLookupTrie.cpp',
             '<(blink_core_output_dir)/HTMLElementLookupTrie.h',
           ],
           'action': [
@@ skipping 39 matching lines @@
             '../build/scripts/rule_bison.py',
             '<(RULE_INPUT_PATH)',
             '<(blink_core_output_dir)',
             '<(bison_exe)',
           ],
         },
       ],
     },
   ],
 }