Revert of bindings: Supports [SameObject] extended attribute.

third_party/WebKit/Source/bindings/templates/attributes.cpp

Index: third_party/WebKit/Source/bindings/templates/attributes.cpp
diff --git a/third_party/WebKit/Source/bindings/templates/attributes.cpp b/third_party/WebKit/Source/bindings/templates/attributes.cpp
index 5a5ce963a2505663af7d54c44957bfb09255fe9e..c5214d31fcee500ff52c725f4458158e5b256f5f 100644
--- a/third_party/WebKit/Source/bindings/templates/attributes.cpp
+++ b/third_party/WebKit/Source/bindings/templates/attributes.cpp
@@ -27,21 +27,9 @@
     v8::Local<v8::Object> holder = info.Holder();
     {% endif %}
     {# impl #}
-    {% if not attribute.is_static %}
-    {{cpp_class}}* impl = {{v8_class}}::toImpl(holder);
-    {% endif %}
-    {% if attribute.is_same_object %}
-    v8::Local<v8::String> propertyName = v8AtomicString(info.GetIsolate(), "sameobject_{{attribute.name}}");
-    {
-        v8::Local<v8::Value> v8Value = V8HiddenValue::getHiddenValue(ScriptState::current(info.GetIsolate()), holder, propertyName);
-        if (!v8Value.IsEmpty()) {
-            v8SetReturnValue(info, v8Value);
-            return;
-        }
-    }
-    {% endif %}
     {% if attribute.cached_attribute_validation_method %}
     v8::Local<v8::String> propertyName = v8AtomicString(info.GetIsolate(), "{{attribute.name}}");
+    {{cpp_class}}* impl = {{v8_class}}::toImpl(holder);
     if (!impl->{{attribute.cached_attribute_validation_method}}()) {
         v8::Local<v8::Value> v8Value = V8HiddenValue::getHiddenValue(ScriptState::current(info.GetIsolate()), holder, propertyName);
         if (!v8Value.IsEmpty() && !v8Value->IsUndefined()) {
@@ -49,6 +37,8 @@
             return;
         }
     }
+    {% elif not attribute.is_static %}
+    {{cpp_class}}* impl = {{v8_class}}::toImpl(holder);
     {% endif %}
     {% if interface_name == 'Window' and attribute.idl_type == 'EventHandler' %}
     if (!impl->document())
@@ -132,9 +122,6 @@
     {{attribute.cpp_value}};
     {% endif %}
     {{attribute.v8_set_return_value}};
-    {% endif %}
-    {% if attribute.is_same_object %}
-    V8HiddenValue::setHiddenValue(ScriptState::current(info.GetIsolate()), holder, propertyName, info.GetReturnValue().Get());
     {% endif %}
 }
 {% endmacro %}