Add generated InheritedDataShared in ComputedStyleBase.

third_party/WebKit/Source/build/scripts/templates/ComputedStyleBase.h.tmpl

 {% from 'macros.tmpl' import license, print_if %}
-{% from 'fields/field.tmpl' import encode, getter_expression, setter_expression, declare_storage, fieldwise_compare, fieldwise_copy, fieldwise_diff %}
+{% from 'fields/field.tmpl' import encode, getter_expression, setter_expression, declare_storage, fieldwise_compare, fieldwise_copy, fieldwise_diff, fieldwise_pointer_compare_inherited %}
 {% from 'fields/group.tmpl' import define_field_group_class %}
 {{license()}}
 
 #ifndef ComputedStyleBase_h
 #define ComputedStyleBase_h
 
 #include "core/style/ComputedStyleConstants.h"
 #include "core/CoreExport.h"
 #include "core/style/DataRef.h"
 #include "core/style/StyleDifference.h"
@@ skipping 75 matching lines @@
         {{fieldwise_compare(computed_style, computed_style.all_fields
             |selectattr("is_property")
             |rejectattr("has_custom_compare_and_copy")
             |rejectattr("is_inherited")
             |list
           )|indent(8)}}
         true
     );
   }
 
+  inline bool InheritedDataShared(const ComputedStyleBase& o) const {
+    return (
+        {{fieldwise_pointer_compare_inherited(computed_style)|indent(8)}}
+        true
+    );
+  }
+
   enum IsAtShadowBoundary {
     kAtShadowBoundary,
     kNotAtShadowBoundary,
   };
 
   void InheritFrom(const ComputedStyleBase& other,
                                       IsAtShadowBoundary isAtShadowBoundary) {
     {{fieldwise_copy(computed_style, computed_style.all_fields
         |selectattr("is_property")
         |selectattr("is_inherited")
@@ skipping 78 matching lines @@
 
  private:
   {% for field in computed_style.fields %}
   {{declare_storage(field)}}
   {% endfor %}
 };
 
 } // namespace blink
 
 #endif // ComputedStyleBase_h