Restructure type tracking in StyleValues to work better with new numeric types

third_party/WebKit/Source/build/scripts/make_cssom_types.py

 #!/usr/bin/env python
 # Copyright 2016 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 sys
 
 import css_properties
 import json5_generator
 from name_utilities import enum_for_css_keyword
 import template_expander
 
 
 class CSSOMTypesWriter(css_properties.CSSProperties):
     """
     Generates CSSOMTypes.cpp and CSSOMKeywords.cpp. These classes provide
     utility methods for determining whether a given CSSStyleValue or
     CSSKeywordValue is valid for a given CSS property. The header files live in
     core/css/cssom.
     """
     def __init__(self, json5_file_path):
         super(CSSOMTypesWriter, self).__init__(json5_file_path)
 
         for property in self._properties.values():
             types = []
             # Expand types
             for singleType in property['typedom_types']:
-                if singleType == 'Length':
-                    types.append('SimpleLength')
-                    types.append('CalcLength')
-                elif singleType == 'Image':
+                if singleType == 'Image':
                     types.append('URLImage')
                 else:
                     types.append(singleType)
             property['typedom_types'] = types
 
             # Generate Keyword ID values from keywords.
             property['keywordIDs'] = map(
                 enum_for_css_keyword, property['keywords'])
 
         self._outputs = {
             'CSSOMTypes.cpp': self.generate_types,
             'CSSOMKeywords.cpp': self.generate_keywords,
         }
 
     @template_expander.use_jinja('CSSOMTypes.cpp.tmpl')
     def generate_types(self):
         return {
             'properties': self._properties,
         }
 
     @template_expander.use_jinja('CSSOMKeywords.cpp.tmpl')
     def generate_keywords(self):
         return {
             'properties': self._properties,
         }
 
 if __name__ == '__main__':
     json5_generator.Maker(CSSOMTypesWriter).main()