Implement cross-origin attributes using access check interceptors.

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

Index: third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
diff --git a/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl b/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
index 634910bded1901de56b61201e87020d81099dca7..0cd340856ada72b043aeee786839cdfc9a0c896c 100644
--- a/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
+++ b/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
@@ -725,9 +725,7 @@ V8DOMConfiguration::installAttribute(isolate, world, {{instance_template}}, {{pr
        'indexedPropertyEnumerator<%s>' % cpp_class
        if indexed_property_getter.is_enumerable else '0' %}
 {% set property_handler_flags =
-       'v8::PropertyHandlerFlags::kAllCanRead'
-       if indexed_property_getter.do_not_check_security
-       else 'v8::PropertyHandlerFlags::kNone' %}
+       'v8::PropertyHandlerFlags::kNone' %}
 v8::IndexedPropertyHandlerConfiguration indexedPropertyHandlerConfig({{indexed_property_getter_callback}}, {{indexed_property_setter_callback}}, {{indexed_property_query_callback}}, {{indexed_property_deleter_callback}}, {{indexed_property_enumerator_callback}}, v8::Local<v8::Value>(), {{property_handler_flags}});
 {{target}}->SetHandler(indexedPropertyHandlerConfig);
 {%- endmacro %}
@@ -751,10 +749,6 @@ v8::IndexedPropertyHandlerConfiguration indexedPropertyHandlerConfig({{indexed_p
        if named_property_getter.is_enumerable else '0' %}
 {% set property_handler_flags_list =
        ['int(v8::PropertyHandlerFlags::kOnlyInterceptStrings)'] %}
-{% if named_property_getter.do_not_check_security %}
-{% set property_handler_flags_list =
-       property_handler_flags_list + ['int(v8::PropertyHandlerFlags::kAllCanRead)'] %}
-{% endif %}
 {% if not is_override_builtins %}
 {% set property_handler_flags_list =
        property_handler_flags_list + ['int(v8::PropertyHandlerFlags::kNonMasking)'] %}