Fix memory dumping for command buffers with no gr_context_.

Fix memory dumping for command buffers with no gr_context_.

BUG=673185
Committed: https://crrev.com/c7b57e009932dd8c560120b9c350cbc4ba8a2781
Cr-Commit-Position: refs/heads/master@{#438295}

[jbauman, 2016-12-13 04:14:46]

The CQ bit was checked by jbauman@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-13 04:15:17]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[jbauman, 2016-12-13 04:34:13]

jbauman@chromium.org changed reviewers:
+ ericrk@chromium.org

[commit-bot: I haz the power, 2016-12-13 05:29:08]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-13 05:29:09]

Dry run: This issue passed the CQ dry run.

[danakj, 2016-12-13 14:26:36]

danakj@chromium.org changed reviewers:
+ danakj@chromium.org

[danakj, 2016-12-13 14:26:36]

driveby LGTM

[jbauman, 2016-12-13 21:42:42]

The CQ bit was checked by jbauman@chromium.org

[commit-bot: I haz the power, 2016-12-13 21:43:22]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-13 21:49:57]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481665362202100, "parent_rev":
"cedbed96233df1ad7b6cb5f094edb573252d2903", "commit_rev":
"f9acc8638857f50a84681fb5547f2269eb75faf0"}

[commit-bot: I haz the power, 2016-12-13 21:50:22]

Description was changed from

==========
Fix memory dumping for command buffers with no gr_context_.

BUG=673185
==========

to

==========
Fix memory dumping for command buffers with no gr_context_.

BUG=673185

Review-Url: https://codereview.chromium.org/2567283003
==========

[commit-bot: I haz the power, 2016-12-13 21:50:23]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-13 21:52:19]

Description was changed from

==========
Fix memory dumping for command buffers with no gr_context_.

BUG=673185

Review-Url: https://codereview.chromium.org/2567283003
==========

to

==========
Fix memory dumping for command buffers with no gr_context_.

BUG=673185

Committed: https://crrev.com/c7b57e009932dd8c560120b9c350cbc4ba8a2781
Cr-Commit-Position: refs/heads/master@{#438295}
==========

[commit-bot: I haz the power, 2016-12-13 21:52:20]

Patchset 1 (id:??) landed as
https://crrev.com/c7b57e009932dd8c560120b9c350cbc4ba8a2781
Cr-Commit-Position: refs/heads/master@{#438295}