On Chrome 33, this is not a HAL issue it is a Flash Plugin issue, I have managed to get Chrome to play Google Play films by:
To go:
chrome://plugins
Disable Adobe Flash Player
Enable IcedTea-Web Plugin (using IcedTea-Web 1.2.3 (1.2.3-0ubuntu0.12.04.3))- Version: 1.2.3
(If you haven't got IcedTea Web Plug you can download it from the software centre)
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