Add null check to WebGLRenderingContextBase::contextGL().

Add null check to WebGLRenderingContextBase::contextGL().

BUG=605988
CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel

Committed: https://crrev.com/1159e071d7d8b72a210cca6e6a916ef4434b5f00
Cr-Commit-Position: refs/heads/master@{#389391}

[Ken Russell (switch to Gerrit), 2016-04-23 04:42:03]

Description was changed from

==========
Add null check to WebGLRenderingContextBase::contextGL().

BUG=605988
==========

to

==========
Add null check to WebGLRenderingContextBase::contextGL().

BUG=605988
CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel
==========

[Ken Russell (switch to Gerrit), 2016-04-23 04:42:48]

kbr@chromium.org changed reviewers:
+ bajones@chromium.org, zmo@chromium.org

[Ken Russell (switch to Gerrit), 2016-04-23 04:42:49]

Please review. Thanks.

[haraken, 2016-04-23 04:45:04]

LGTM

[Zhenyao Mo, 2016-04-23 05:00:40]

lgtm

[Ken Russell (switch to Gerrit), 2016-04-23 21:48:26]

The CQ bit was checked by kbr@chromium.org

[commit-bot: I haz the power, 2016-04-23 21:48:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1916663002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1916663002/1

[commit-bot: I haz the power, 2016-04-23 22:53:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-23 22:54:57]

Description was changed from

==========
Add null check to WebGLRenderingContextBase::contextGL().

BUG=605988
CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel
==========

to

==========
Add null check to WebGLRenderingContextBase::contextGL().

BUG=605988
CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel

Committed: https://crrev.com/1159e071d7d8b72a210cca6e6a916ef4434b5f00
Cr-Commit-Position: refs/heads/master@{#389391}
==========

[commit-bot: I haz the power, 2016-04-23 22:54:58]

Patchset 1 (id:??) landed as
https://crrev.com/1159e071d7d8b72a210cca6e6a916ef4434b5f00
Cr-Commit-Position: refs/heads/master@{#389391}