ADFS3 as service provider using google as Identity Provider

our organisation use ADFS3 and we have configured several Relying party trusts to single sign on to third party service providers in cloud.

Now we have requirement to grant SSO to On-Prem SharePoint 2013 to users in different organisation using Google managed account. Such way that Google act as IDP and ADFS consume token issued by Google and grant access to SharePoint.

Any lead or web links relating to above info will be much appreciated.

thanks

Sa 

NSW DECC