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

third_party/WebKit/Source/core/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/ui.gni")
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/bindings/core/v8/generated.gni")
 import("//third_party/WebKit/Source/bindings/modules/modules.gni")
 import("//third_party/WebKit/Source/bindings/modules/v8/generated.gni")
@@ skipping 950 matching lines @@
   deps = make_core_generated_deps
 }
 
 # "HTMLElementLookupTrie" in make_core_generated from GYP.
 action("make_core_generated_html_element_lookup_trie") {
   visibility = []  # Allow re-assignment of list.
   visibility = [ ":make_core_generated" ]
   script = "../build/scripts/make_element_lookup_trie.py"
 
   input_file = "html/HTMLTagNames.in"
-  inputs = scripts_for_in_files + [
+  inputs = make_trie_helpers_files + [
              input_file,
              "../build/scripts/templates/ElementLookupTrie.cpp.tmpl",
              "../build/scripts/templates/ElementLookupTrie.h.tmpl",
            ]
   outputs = [
     "$blink_core_output_dir/HTMLElementLookupTrie.cpp",
     "$blink_core_output_dir/HTMLElementLookupTrie.h",
   ]
 
   args = [
@@ skipping 38 matching lines @@
     "$blink_core_output_dir/{{source_name_part}}.h",
   ]
   args = [
     "{{source}}",
     rel_blink_core_gen_dir,
     bison_exe,
   ]
 
   deps = make_core_generated_deps
 }