AccessorConfiguration and AttributeConfiguration no longer need the same fields.

third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h

Index: third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h b/third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h
index e59d59a0085dbc6db6c395a936cd03466c51c32b..94412e7f034e04a65c3a70cca6254a364f2b870d 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8DOMConfiguration.h
@@ -83,10 +83,7 @@ class CORE_EXPORT V8DOMConfiguration final {
     const char* const name;
     v8::AccessorNameGetterCallback getter;
     v8::AccessorNameSetterCallback setter;
-    // TODO(vogelheim): This has to be removed too since it's only used in
-    //                  accessors.
-    // The accessor's 'result' is stored in a private property.
-    CachedPropertyKey cached_property_key;
+
     const WrapperTypeInfo* data;
     // v8::PropertyAttribute
     unsigned attribute : 8;