First implementation of lazily cached accessor for DOM attributes.

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 f9534945814c8911f950d38704774472bbbdaf92..51b468141a47659fc397aaffabcfa8f38bb45d66 100644
--- a/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
+++ b/third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl
@@ -678,10 +678,10 @@ static const V8DOMConfiguration::AttributeConfiguration {{method.name}}OriginSaf
 {% set getter_callback_for_main_world = '%sForMainWorld' % getter_callback %}
 {% set setter_callback_for_main_world = '%sForMainWorld' % setter_callback
        if not method.is_unforgeable else 'nullptr' %}
-    {"{{method.name}}", {{getter_callback_for_main_world}}, {{setter_callback_for_main_world}}, nullptr, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::MainWorld},
-    {"{{method.name}}", {{getter_callback}}, {{setter_callback}}, nullptr, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::NonMainWorlds}}
+    {"{{method.name}}", {{getter_callback_for_main_world}}, {{setter_callback_for_main_world}}, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::MainWorld},
+    {"{{method.name}}", {{getter_callback}}, {{setter_callback}}, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::NonMainWorlds}}
 {% else %}
-    {"{{method.name}}", {{getter_callback}}, {{setter_callback}}, nullptr, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::kAllWorlds}
+    {"{{method.name}}", {{getter_callback}}, {{setter_callback}}, &{{v8_class}}::wrapperTypeInfo, {{property_attribute}}, {{property_location(method)}}, {{holder_check}}, V8DOMConfiguration::kAllWorlds}
 {% endif %}
 };
 for (const auto& attributeConfig : {{method.name}}OriginSafeAttributeConfiguration)
@@ -902,7 +902,6 @@ v8::Local<v8::Object> {{v8_class}}::findInstanceInPrototypeChain(v8::Local<v8::V
 
 {% endblock %}
 
-
 {##############################################################################}
 {% block partial_interface %}
 {% if has_partial_interface %}