| Index: Source/core/testing/Internals.idl | 
| diff --git a/Source/core/testing/Internals.idl b/Source/core/testing/Internals.idl | 
| index ee82a7e7c37a44570ce3903ef190946a5619997c..2d86f0b2b69ae208eeaa315f771f60461dad2ac6 100644 | 
| --- a/Source/core/testing/Internals.idl | 
| +++ b/Source/core/testing/Internals.idl | 
| @@ -165,6 +165,7 @@ | 
| const unsigned short LAYER_TREE_INCLUDES_TILE_CACHES = 2; | 
| const unsigned short LAYER_TREE_INCLUDES_REPAINT_RECTS = 4; | 
| const unsigned short LAYER_TREE_INCLUDES_PAINTING_PHASES = 8; | 
| +    const unsigned short LAYER_TREE_INCLUDES_ROOT_LAYER = 16; | 
| [RaisesException] DOMString layerTreeAsText(Document document, optional unsigned short flags); | 
|  | 
| [RaisesException] NodeList paintOrderListBeforePromote(Element element); | 
|  |