Fix Get* calls in GPU Command buffer.

Fix Get* calls in GPU Command buffer.

This CL should make conformance2/state/gl-get-calls.html mostly passing
except for COPY_READ_BUFFER_BINDING/COPY_WRITE_BUFFER_BINDING.

BUG=429053
TEST=conformance2/state/gl-get-calls.html
R=piman@chromium.org

Committed: https://crrev.com/0e679b21d216c1bee75511d50f2ecc6fedabf01a
Cr-Commit-Position: refs/heads/master@{#330457}

[Zhenyao Mo, 2015-05-18 22:23:30]

piman: PTAL
others: FYI (feel free to review)

[piman, 2015-05-19 00:13:41]

LGTM, but see question.

https://codereview.chromium.org/1126173003/diff/1/gpu/command_buffer/service/...
File gpu/command_buffer/service/gles2_cmd_decoder.cc (right):

https://codereview.chromium.org/1126173003/diff/1/gpu/command_buffer/service/...
gpu/command_buffer/service/gles2_cmd_decoder.cc:3008:
caps.max_server_wait_timeout = 0;
Is 0 really better than GL_TIMEOUT_IGNORED which is essentially infinite?

[Zhenyao Mo, 2015-05-19 00:20:13]

On 2015/05/19 00:13:41, piman (Very slow to review) wrote:
> LGTM, but see question.
> 
>
https://codereview.chromium.org/1126173003/diff/1/gpu/command_buffer/service/...
> File gpu/command_buffer/service/gles2_cmd_decoder.cc (right):
> 
>
https://codereview.chromium.org/1126173003/diff/1/gpu/command_buffer/service/...
> gpu/command_buffer/service/gles2_cmd_decoder.cc:3008:
> caps.max_server_wait_timeout = 0;
> Is 0 really better than GL_TIMEOUT_IGNORED which is essentially infinite?

According to the spec, MAX_SERVER_WAIT_TIMEOUT >= 0. GL_TIMEOUT_IGNORED is more
than an GLint64 can represent, thus become -1, which fails the conformance test.
That's why I put in this workaround here.

[Zhenyao Mo, 2015-05-19 00:20:29]

The CQ bit was checked by zmo@chromium.org

[commit-bot: I haz the power, 2015-05-19 00:21:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1126173003/1

[commit-bot: I haz the power, 2015-05-19 00:26:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-19 00:27:51]

Patchset 1 (id:??) landed as
https://crrev.com/0e679b21d216c1bee75511d50f2ecc6fedabf01a
Cr-Commit-Position: refs/heads/master@{#330457}