rem: this._oldTitle = PlacesUtils.bookmarks.getItemTitle(this._id); PlacesUtils.bookmarks.setItemTitle(this._id, this._newTitle); 
add: this._oldLastModified = PlacesUtils.bookmarks.getItemLastModified(this.id); PlacesUtils.bookmarks.setItemLastModified(this.id, this._newLastModified); 
context:   doTransaction: function PEITT_doTransaction() {    this._oldTitle = PlacesUtils.bookmarks.getItemTitle(this._id);    PlacesUtils.bookmarks.setItemTitle(this._id, this._newTitle);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/d9f7bb816b186e9d41f17703fa40333f621aec38/nsPlacesTransactionsService.js/buggy/browser/components/places/src/nsPlacesTransactionsService.js