cvox2: Fix a typo causing the wrong variable to be referenced.

cvox2: Fix a typo causing the wrong variable to be referenced.

Follow up to https://codereview.chromium.org/1326363002, making that
change have the desirved effect.

R=dtseng@chromium.org
BUG=525649
Committed: https://crrev.com/c4a855eae3549d5ff697be4d1ea7274071c52391
Cr-Commit-Position: refs/heads/master@{#350589}

[Peter Lundblad, 2015-09-23 13:43:07]

I tried playing with closure compiler options to catch this, but it seems like
assignments that create new properties aren't caught.

[David Tseng, 2015-09-23 15:46:04]

The CQ bit was checked by dtseng@chromium.org

[David Tseng, 2015-09-23 15:46:04]

lgtm

[commit-bot: I haz the power, 2015-09-23 15:46:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1364613004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1364613004/1

[commit-bot: I haz the power, 2015-09-23 16:00:08]

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

[commit-bot: I haz the power, 2015-09-23 16:00:08]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[Peter Lundblad, 2015-09-24 16:38:31]

The CQ bit was checked by plundblad@chromium.org

[commit-bot: I haz the power, 2015-09-24 16:38:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1364613004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1364613004/1

[commit-bot: I haz the power, 2015-09-24 17:14:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-24 17:15:33]

Patchset 1 (id:??) landed as
https://crrev.com/c4a855eae3549d5ff697be4d1ea7274071c52391
Cr-Commit-Position: refs/heads/master@{#350589}