Login to my webpage through google-chrome-extension with OAuth
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I have situation where i got two sides working separatly

 1. Webpage using OAuth to register/login user (and display his account data)
 2. Chrome extension where user authentificates himself through OAuth (no my webpage involved yet)

So i can't figure out is how to connect extension to see user webpage data. See image below to understand better.

![Sync webpage data to chrome extension][1]

  [1]: http://i.stack.imgur.com/EpLeg.png

What are possible ways to get it work?
