Remove duplicate entries in methods to diff and predicates to test

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 206 matching lines @@
     field_dependencies = _list_field_dependencies(methods_to_diff + predicates_to_test)
     for subgroup in root_group.subgroups:
         if any(field.property_name in (fields_to_diff + field_dependencies) for field in subgroup.all_fields):
             diff_group.subgroups.append(_create_diff_groups(fields_to_diff, methods_to_diff, predicates_to_test, subgroup))
     for entry in fields_to_diff:
         for field in root_group.fields:
             if not field.is_inherited_flag and entry == field.property_name:
                 diff_group.fields.append(field)
     for entry in methods_to_diff:
         for field in root_group.fields:
-            if not field.is_inherited_flag and field.property_name in entry['field_dependencies']:
+            if (not field.is_inherited_flag and field.property_name in entry['field_dependencies']
+                    and entry['method'] not in diff_group.expressions):
                 diff_group.expressions.append(entry['method'])
     for entry in predicates_to_test:
         for field in root_group.fields:
-            if not field.is_inherited_flag and field.property_name in entry['field_dependencies']:
+            if (not field.is_inherited_flag and field.property_name in entry['field_dependencies']
+                    and entry['predicate'] not in diff_group.predicates):
                 diff_group.predicates.append(entry['predicate'])
     return diff_group
 
 
 def _create_enums(properties):
     """
     Returns an OrderedDict of enums to be generated, enum name -> [list of enum values]
     """
     enums = {}
     for property_ in properties:
@@ skipping 228 matching lines @@
 
     @template_expander.use_jinja('ComputedStyleBaseConstants.h.tmpl')
     def generate_base_computed_style_constants(self):
         return {
             'properties': self._properties,
             'enums': self._generated_enums,
         }
 
 if __name__ == '__main__':
     json5_generator.Maker(ComputedStyleBaseWriter).main()