rem: this.removeSelection(aAction, aSelection, aTarget); 
add: this.removeSelection(aAction, aSelection); 
context:   removeAndCheckSelection: function (aAction, aSelection)  {    isValid = BookmarksUtils.isSelectionValidForDeletion(aSelection);    if (!isValid) {      SOUND.beep();      return false;    }    this.removeSelection(aAction, aSelection, aTarget);    BookmarksUtils.flushDataSource();    return true;  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/ccba7ce6b1df2a248270a17ec80bf090801bfb92/bookmarks.js/clean/browser/components/bookmarks/content/bookmarks.js