command_buffer: Remove unused shared id code (GenSharedIdsCHROMIUM, ...)

command_buffer: Remove unused shared id code (GenSharedIdsCHROMIUM, ...)

Remove unused shared id code from gpu command buffer. The functions
removed are glGenSharedIdsCHROMIUM, glDeleteSharedIdsCHROMIUM,
glRegisterSharedIdsCHROMIUM. The functions are not specified by the
pseudo-extensions and it appears as if they have never been called. Also
PPAPI does not expose these.

This simplifies working with id generation logic. Removes the extra,
unused id allocation for various id namespaces from the service side.

Also fixes gpu process null pointer deref when the *SharedId
commands would have an invalid namespace id.

Committed: https://crrev.com/06d32878eeabdf9a12c76b8ee89bd5ac5b81d648
Cr-Commit-Position: refs/heads/master@{#298012}

[Kimmo Kinnunen, 2014-10-01 05:50:25]

kkinnunen@nvidia.com changed reviewers:
+ piman@chromium.org, vmiura@chromium.org

[piman, 2014-10-03 03:40:48]

LGTM, that's a nice cleanup!

[Kimmo Kinnunen, 2014-10-03 06:21:28]

The CQ bit was checked by kkinnunen@nvidia.com

[commit-bot: I haz the power, 2014-10-03 06:22:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/621673002/1

[commit-bot: I haz the power, 2014-10-03 08:30:47]

Committed patchset #1 (id:1) as 8d1ccef7c8020140b7d6f6827d906a76a8c8f626

[commit-bot: I haz the power, 2014-10-03 08:31:28]

Patchset 1 (id:??) landed as
https://crrev.com/06d32878eeabdf9a12c76b8ee89bd5ac5b81d648
Cr-Commit-Position: refs/heads/master@{#298012}