function _findListItemFromFile(file) {
        var result = null;

        if (file) {
            var items = $openFilesContainer.find("ul").children();
            items.each(function () {
                var $listItem = $(this);
                if ($listItem.data(_FILE_KEY).fullPath === file.fullPath) {
                    result = $listItem;
                    return false;
                    // breaks each
                }
            });
        }

        return result;
    }
Finds the listItem item assocated with the file. Returns null if not found.
@private
@param {!FileEntry} file
@return {HTMLLIItem}