| Index: chrome/common/extensions/extension_constants.h | 
| diff --git a/chrome/common/extensions/extension_constants.h b/chrome/common/extensions/extension_constants.h | 
| index 0daca2ac06a57d5ea9124208b2b35896beebfc12..0531f0ac07aa9b58418c972136b3f278ce829782 100644 | 
| --- a/chrome/common/extensions/extension_constants.h | 
| +++ b/chrome/common/extensions/extension_constants.h | 
| @@ -337,8 +337,12 @@ namespace extension_filenames { | 
| } | 
|  | 
| namespace extension_misc { | 
| +  // Matches chrome.windows.WINDOW_ID_NONE. | 
| const int kUnknownWindowId = -1; | 
|  | 
| +  // Matches chrome.windows.WINDOW_ID_CURRENT. | 
| +  const int kCurrentWindowId = -2; | 
| + | 
| // The extension id of the bookmark manager. | 
| extern const char kBookmarkManagerId[]; | 
|  | 
|  |