Move field-dependent code in ComputedStyleBase to Jinja macros.

third_party/WebKit/Source/build/scripts/make_computed_style_base.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 math
 import sys
 
 import json5_generator
 import template_expander
@@ skipping 31 matching lines @@
     # List of required attributes for a field which need to be passed in by
     # keyword arguments. See CSSProperties.json5 for an explanation of each
     # attribute.
     REQUIRED_ATTRIBUTES = set([
         # Name of field
         'name',
         # Name of property field is for
         'property_name',
         # Name of the type (e.g. EClear, int)
         'type_name',
-        # Affects how the field is generated (keyword, flag)
+        # Affects how the field is generated (keyword, flag, monotonic_flag)
         'field_template',
         # Bits needed for storage
         'size',
         # Default value for field
         'default_value',
         # Method names
         'getter_method_name',
         'setter_method_name',
         'initial_method_name',
         'resetter_method_name',
@@ skipping 138 matching lines @@
     Create a nonproperty field from its name and return the Field object.
     """
     member_name = 'm_' + field_name
     field_name_upper = upper_first_letter(field_name)
 
     return Field(
         'nonproperty',
         name=member_name,
         property_name=field_name,
         type_name='bool',
-        field_template='flag',
+        field_template='monotonic_flag',
         size=1,
         default_value='false',
         getter_method_name=field_name,
         setter_method_name='set' + field_name_upper,
         initial_method_name='initial' + field_name_upper,
         resetter_method_name='reset' + field_name_upper,
     )
 
 
 def _create_fields(properties):
@@ skipping 118 matching lines @@
     def generate_base_computed_style_constants(self):
         return {
             'properties': self._properties,
             'enums': self._generated_enums,
             'fields': self._fields,
             'expected_total_field_bytes': self._expected_total_field_bytes,
         }
 
 if __name__ == '__main__':
     json5_generator.Maker(ComputedStyleBaseWriter).main()