Bug#567311: Bug# 567311: no longer works with youtube html5

[Fabian Greffrath]

>    * debian/patches/04-spoof-user-agent-to-google.patch:
>    - spoof User Agent when talking to Google servers;
>      this should make Youtube HTML5 work again (Closes: #567311)

Wouldn't it maybe make more sense to simply add "like Chrome/X.Y" to 
the "Safari/X.Y" part of the User Agent String, instead of explicit 
spoofing it only for Google's sites? Especially because the 
hand-crafted list of google domain names seems highly error prone.

  - Fabian