Add database to copying.

mailnews/base/public/nsIMessenger.idl

@@ -41,7 +41,8 @@ interface nsIMessenger : nsISupports {
     void OpenURL(in string str);
     void DeleteMessages(in nsIDOMXULTreeElement tree, in nsIDOMXULElement srcFolder, in nsIDOMNodeList node);
     void DeleteFolders(in nsIRDFCompositeDataSource db, in nsIDOMXULElement parentFolder, in nsIDOMXULElement folder);
-	void CopyMessages(in nsIDOMXULElement srcFolderElement, in nsIDOMXULElement dstFolderElement, in nsIDOMNodeList messages,
+	void CopyMessages(in nsIRDFCompositeDataSource database, in nsIDOMXULElement srcFolderElement,
+					  in nsIDOMXULElement dstFolderElement, in nsIDOMNodeList messages,
 					  in boolean isMove);
     nsISupports GetRDFResourceForMessage(in nsIDOMXULTreeElement tree, in nsIDOMNodeList node);
 	void Exit();