| Index: bindings/IDLExtendedAttributes.txt | 
| diff --git a/bindings/IDLExtendedAttributes.txt b/bindings/IDLExtendedAttributes.txt | 
| index dafd683323fccfc332f50d0c4fffc6d9a45cb62c..044d188ed36ea8e9dcf02506793a9a1e336b8213 100644 | 
| --- a/bindings/IDLExtendedAttributes.txt | 
| +++ b/bindings/IDLExtendedAttributes.txt | 
| @@ -56,6 +56,14 @@ DartName=* | 
| DartSuppress=|Getter|Setter | 
| # No need to setup Dart API scope when a native function is invoked. | 
| DartNoAutoScope | 
| +# TODO(terry): Used in dart.idl - look at removing or using | 
| +DartSupplemental | 
| +# TODO(terry): Used in dart.idl (look at eliminating). | 
| +DartForceOptional | 
| +# TODO(terry): Used in dart.idl (look at eliminating). | 
| +DartCallback | 
| +# TODO(terry): Used in dart.idl (look at eliminating). | 
| +DartStrictTypeChecking | 
| # End of Dartium attributes. | 
| Default=Undefined | 
| DependentLifetime | 
|  |