Revert of Generalize V4L2 HW video codec device names

Revert of Generalize V4L2 HW video codec device names (patchset #1 id:1 of https://codereview.chromium.org/730693005/)

Reason for revert:
This change breaks video_ChromeHWDecodeUsed, please see crbug.com/439175 for details.

Original issue's description:
> Generalize V4L2 HW video codec device names
>
> Switch to more generalized V4L2 video accelerator device names and update
> sandbox rules to reflect that.
>
> This is another attempt at crrev.com/763743002, reverted in
> crrev.com/767383002 with a fixup for sandbox permissions.
>
> BUG=405861, 437598
> TEST=compile
>
> Committed: https://crrev.com/30a3721c82953428d445a93ebe2bf0014e27bc10
> Cr-Commit-Position: refs/heads/master@{#306642}

TBR=jorgelo@chromium.org,scherkus@chromium.org,posciak@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=405861, 437598
Committed: https://crrev.com/8286b103de0dbc30bc0ab2012fd26fce8b683f90
Cr-Commit-Position: refs/heads/master@{#307077}

[jonross, 2014-12-05 20:53:32]

Created Revert of Generalize V4L2 HW video codec device names

[commit-bot: I haz the power, 2014-12-05 20:54:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/784553004/1

[commit-bot: I haz the power, 2014-12-05 20:55:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-05 20:56:09]

Patchset 1 (id:??) landed as
https://crrev.com/8286b103de0dbc30bc0ab2012fd26fce8b683f90
Cr-Commit-Position: refs/heads/master@{#307077}