| Index: content/public/browser/web_contents.h | 
| diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h | 
| index 768ece2fc51ef52b0cbccf9d55f9e78944e40084..65940cda8f134e5dc79ec7b9a0dbdb81fb70f706 100644 | 
| --- a/content/public/browser/web_contents.h | 
| +++ b/content/public/browser/web_contents.h | 
| @@ -384,6 +384,12 @@ class WebContents : public PageNavigator, | 
| // has one. | 
| virtual void DispatchBeforeUnload(bool for_cross_site_transition) = 0; | 
|  | 
| +  // Attaches this inner WebContents to its container frame | 
| +  // |outer_contents_frame| in |outer_web_contents|. | 
| +  virtual void AttachToOuterWebContentsFrame( | 
| +      WebContents* outer_web_contents, | 
| +      RenderFrameHost* outer_contents_frame) = 0; | 
| + | 
| // Commands ------------------------------------------------------------------ | 
|  | 
| // Stop any pending navigation. | 
|  |