Patch for /trunk/optoutplugin/chrome/background.js

```
addition to line 51; [chrome.cookies.remove.permanently] 
```

Original issue reported on code.google.com by `oddki...@gmail.com` on 24 Nov 2014 at 3:15

Attachments:
- [background.js.patch](https://storage.googleapis.com/google-code-attachments/google-opt-out-plugin/issue-46/comment-0/background.js.patch)
