convert some more users to the screen conversion functions.

[Adam Jackson]

On 5/14/12 8:00 AM, Dave Airlie wrote:
> These are just some more simple patches to move to using the Screen->Scrn
> and Scrn->Screen conversion functions in various parts of the server.
>
> The last is an API change but should be fine from ABI pov.
>
> These are last set of patches before major ABI breakage set.

For the series:

Reviewed-by: Adam Jackson <ajax at redhat.com>

- ajax