Generate isHTML*Element() / toHTML*Element() helper functions

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 256 matching lines @@
           ],
           'action': [
             'python',
             '../build/scripts/make_element_factory.py',
             'html/HTMLTagNames.in',
             'html/HTMLAttributeNames.in',
             '--output_dir',
             '<(SHARED_INTERMEDIATE_DIR)/blink',
           ],
         },
+{
+          'action_name': 'HTMLElementTypeHelpers',
+          'inputs': [
+            '<@(make_element_type_helpers_files)',
+            'html/HTMLTagNames.in',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/blink/HTMLElementTypeHelpers.h',
+          ],
+          'action': [
+            'python',
+            '../build/scripts/make_element_type_helpers.py',
+            'html/HTMLTagNames.in',
+            '--output_dir',
+            '<(SHARED_INTERMEDIATE_DIR)/blink',
+          ],
+        },
         {
           'action_name': 'SVGNames',
           'inputs': [
             '<@(make_element_factory_files)',
             'svg/SVGTagNames.in',
             'svg/SVGAttributeNames.in',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/blink/SVGElementFactory.cpp',
             '<(SHARED_INTERMEDIATE_DIR)/blink/SVGElementFactory.h',
@@ skipping 347 matching lines @@
             '../build/scripts/rule_bison.py',
             '<(RULE_INPUT_PATH)',
             '<(SHARED_INTERMEDIATE_DIR)/blink',
             '<(bison_exe)',
           ],
         },
       ],
     },
   ],
 }