[es6] Ship --harmony-completion.

[es6] Ship --harmony-completion.

R=rossberg
BUG=

Committed: https://crrev.com/e5ae33b55b2120a11199dbd3c3ae77c5799578bf
Cr-Commit-Position: refs/heads/master@{#31521}

[rossberg, 2015-10-23 11:05:01]

lgtm

[neis, 2015-10-23 11:09:04]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2015-10-23 11:09:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1425433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1425433002/1

[commit-bot: I haz the power, 2015-10-23 11:43:53]

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

[commit-bot: I haz the power, 2015-10-23 11:43:54]

Try jobs failed on following builders:
  v8_linux_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_rel/builds/10910)

[neis, 2015-10-23 12:57:36]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2015-10-23 12:57:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1425433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1425433002/1

[commit-bot: I haz the power, 2015-10-23 13:10:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-23 13:11:32]

Patchset 1 (id:??) landed as
https://crrev.com/e5ae33b55b2120a11199dbd3c3ae77c5799578bf
Cr-Commit-Position: refs/heads/master@{#31521}