Reference files from child theme

Hi,

I have created a child theme for a bootstrap style theme.

In the functions.php file there are a few lines that point to files that reside within folders in the parent theme folder structure.
eg;
require_once( get_template_directory() .'/functions/google-fonts.php' );

Now rather than having to copy all the required files, I just want to create a function file in my child theme that loads the files that the theme needs.

I have discovered I need to to do this as the fonts aren’t loading.

Can some one give me some guidance on how I can get the files to load.

Many thanks

http://wordpress.org/plugins/child-themes/