| Index: chrome/common/extensions/api/app_window.idl | 
| diff --git a/chrome/common/extensions/api/app_window.idl b/chrome/common/extensions/api/app_window.idl | 
| index 3ca6fb9b173465dd3d2d0ea29f68909b7ac85a41..7f88000cda72aa7b84bea0e5f1d83d5d2ef7d4ef 100644 | 
| --- a/chrome/common/extensions/api/app_window.idl | 
| +++ b/chrome/common/extensions/api/app_window.idl | 
| @@ -49,7 +49,9 @@ namespace app.window { | 
| // Maximum height of the window. | 
| long? maxHeight; | 
|  | 
| -    // Window type: 'shell' (the default) is the only currently supported value. | 
| +    // Window type: | 
| +    //  'shell' - the default window type | 
| +    //  'panel' - a panel, managed by the OS (Currently experimental, Ash only) | 
| [nodoc] DOMString? type; | 
|  | 
| // Frame type: 'none' or 'chrome' (defaults to 'chrome'). | 
|  |