| Index: Source/platform/graphics/Image.h | 
| diff --git a/Source/platform/graphics/Image.h b/Source/platform/graphics/Image.h | 
| index 0ab5cad0cdfea33edcabc65d79901aa95dc437a4..cc3cc9604f15b63978ed3a536da721a759f7e828 100644 | 
| --- a/Source/platform/graphics/Image.h | 
| +++ b/Source/platform/graphics/Image.h | 
| @@ -139,6 +139,9 @@ private: | 
| ImageObserver* m_imageObserver; | 
| }; | 
|  | 
| +#define DEFINE_IMAGE_TYPE_CASTS(typeName) \ | 
| +    DEFINE_TYPE_CASTS(typeName, Image, image, image->is##typeName(), image.is##typeName()) | 
| + | 
| } | 
|  | 
| #endif | 
|  |