Google has been recently pushing hard to have its payment service, Google Wallet integration right to the browser. The latest is Chrome is about to support app payments for Chrome Packaged Apps.
Chrome Wallet App is available in the Chrome WebStore at https://chrome.google.com/webstore/detail/google-wallet-service/nmmhkkegccagdldgiimedpiccmgmieda.
If you want to try ,just run Google Chrome Canary and install the Chrome Sample Ap. The app named as “In App Payments” at https://github.com/GoogleChrome/chrome-app-samples/tree/master/in-app-payments.
Chrome Canary is currently on version 29, so we can expect that this integration won’t make it into the stable channel of Chrome for a couple of months.