Push Messaging Roundtrip Sample

Tests push messaging end to end.

Push Messaging Roundtrip Sample App Sample that shows how to use the [Push Messaging API](http://developer.chrome.com/apps/pushMessaging.html) in an app. Normally we don't expect you to send push messages from JS code, we normally expect that you will want to write a server which does the sending, but this app may help you with debugging your client app, understanding the whole flow of the push messaging scenario, and testing push messaging end to end with your credentials. This app brings up a small window that will send a push message through the push messaging server when you press its button. The message should appear as a notification on the screen (it will dissapear after a few seconds, and you can look for it in the notification center on Mac or Win). You will need to make your own copy of this app, and upload it to the Chrome Web Store to get an extension id. Once you have that, you will need to get oauth credentials for the same account you used to upload the app. Once you have the credentials (instructions below), edit the push_messaging_roundtrip_sample.js file on your machine. You can then go to the chrome://extensions page and load it as an unpacked extension. You can debug it by right clicking on the page and using "inspect". See the Push Messaging documentation for where to get the values to use for the clientId, clientSecret, and refreshToken. Server side docs are located here: http://developer.chrome.com/apps/cloudMessaging.html Client side docs are located here: http://developer.chrome.com/apps/pushMessaging.html Most of the relevant code for this sample is in push_messaging_roundtrip_sample.js. We've commented it heavily, to explain what is going on and what you need to do to write your client code. See the source code at https://github.com/GoogleChrome/chrome-app-samples/tree/master/push-messaging-roundtrip-sample This version was built from git commit 08a1dad https://github.com/GoogleChrome/chrome-app-samples/tree/08a1dad/push-messaging-roundtrip-sample