binding: Sets location[Symbol.toPrimitive].

third_party/WebKit/Source/bindings/templates/interface_base.cpp.tmpl

 {% filter format_blink_cpp_source_code %}
 
 {% include 'copyright_block.txt' %}
 #include "{{v8_class_or_partial}}.h"
 
 {% for filename in cpp_includes if filename != '%s.h' % cpp_class_or_partial %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace blink {
@@ skipping 479 matching lines @@
   {% if iterator_method %}
   {% filter exposed(iterator_method.exposed_test) %}
   {% filter runtime_enabled(iterator_method.runtime_enabled_feature_name) %}
   // Iterator (@@iterator)
   const V8DOMConfiguration::SymbolKeyedMethodConfiguration symbolKeyedIteratorConfiguration = { v8::Symbol::GetIterator, {{cpp_class_or_partial}}V8Internal::iteratorMethodCallback, 0, v8::DontEnum, V8DOMConfiguration::OnPrototype };
   V8DOMConfiguration::installMethod(isolate, world, prototypeTemplate, signature, symbolKeyedIteratorConfiguration);
   {% endfilter %}
   {% endfilter %}
   {% endif %}
 
+  {% if interface_name == 'Location' %}
+  // Symbol.toPrimitive
+  // Prevent author scripts to inject Symbol.toPrimitive property into location
+  // objects, also prevent the look-up of Symbol.toPrimitive through the
+  // prototype chain.
+  instanceTemplate->Set(v8::Symbol::GetToPrimitive(isolate),
+                        v8::Undefined(isolate),
+                        static_cast<v8::PropertyAttribute>(
+                            v8::ReadOnly | v8::DontEnum | v8::DontDelete));
+  {% endif %}
+
   {% if legacy_caller and not is_partial %}
   instanceTemplate->SetCallAsFunctionHandler({{cpp_class_or_partial}}V8Internal::{{legacy_caller.name}}MethodCallback);
   {% elif has_custom_legacy_call_as_function and not is_partial %}
   instanceTemplate->SetCallAsFunctionHandler({{v8_class}}::legacyCallCustom);
   {% endif %}
 
   {% if interface_name == 'HTMLAllCollection' and not is_partial %}
   // Needed for legacy support of document.all
   instanceTemplate->MarkAsUndetectable();
   {% endif %}
@@ skipping 144 matching lines @@
 {% block has_instance %}{% endblock %}
 {% block to_impl %}{% endblock %}
 {% block to_impl_with_type_check %}{% endblock %}
 {##############################################################################}
 {% block prepare_prototype_and_interface_object %}{% endblock %}
 {##############################################################################}
 {% block partial_interface %}{% endblock %}
 }  // namespace blink
 
 {% endfilter %}{# format_blink_cpp_source_code #}