Fix crash on mergeSync

Fix crash on mergeSync

BUG=674133
Committed: https://crrev.com/9c83edb6f6103807e3a98dc4052e2867f1775b54
Cr-Commit-Position: refs/heads/master@{#439071}

[Olivier, 2016-12-16 08:41:24]

olivierrobin@chromium.org changed reviewers:
+ gambard@chromium.org

[Olivier, 2016-12-16 08:42:55]

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

[commit-bot: I haz the power, 2016-12-16 08:43:07]

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

[gambard, 2016-12-16 08:47:35]

lgtm

[commit-bot: I haz the power, 2016-12-16 08:55:46]

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

[commit-bot: I haz the power, 2016-12-16 08:55:47]

Dry run: This issue passed the CQ dry run.

[Olivier, 2016-12-16 08:56:37]

The CQ bit was checked by olivierrobin@chromium.org

[commit-bot: I haz the power, 2016-12-16 08:56:54]

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, 2016-12-16 09:01:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481878597953930, "parent_rev":
"c272b6c67a00e01b83a3c2904da77f5cf155d021", "commit_rev":
"1233c3b7a536783760a918d7d1756cb8d67a9a94"}

[commit-bot: I haz the power, 2016-12-16 09:01:36]

Description was changed from

==========
Fix crash on mergeSync

BUG=674133
==========

to

==========
Fix crash on mergeSync

BUG=674133

Review-Url: https://codereview.chromium.org/2583823002
==========

[commit-bot: I haz the power, 2016-12-16 09:01:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-16 09:05:38]

Description was changed from

==========
Fix crash on mergeSync

BUG=674133

Review-Url: https://codereview.chromium.org/2583823002
==========

to

==========
Fix crash on mergeSync

BUG=674133

Committed: https://crrev.com/9c83edb6f6103807e3a98dc4052e2867f1775b54
Cr-Commit-Position: refs/heads/master@{#439071}
==========

[commit-bot: I haz the power, 2016-12-16 09:05:39]

Patchset 1 (id:??) landed as
https://crrev.com/9c83edb6f6103807e3a98dc4052e2867f1775b54
Cr-Commit-Position: refs/heads/master@{#439071}