https://techcrunch.com/2018/05/24/paypal-starts-deeper-integration-with-google-users-can-now-pay-directly-in-gmail-youtube-and-more/

Google earlier this year rebranded all of its payment services under Google Pay to help it double down on making transactions across its platform more frictionless (and more used). Now comes another development: PayPal and Google are kicking off a deep integration, where users who add their PayPal details to their Google Play accounts will be able to pay bills and for other items, using PayPal, without logging in and without leaving the Google services.

The integration, when it goes live later this year, will cover apps like Gmail, YouTube, Google Store and any services using Google Pay — and it will include not just payments but also peer-to-peer transfers.