Fix closure compiler error which is introduced by 931103002.

Fix closure compiler error which is introduced by 931103002.

BUG=456016
TEST=GYP_GENERATORS=ninja tools/gyp/gyp --depth . ui/file_manager/file_manager/foreground/js/compiled_resources.gyp && ninja -C out/Default

Committed: https://crrev.com/137699b20cabc84d7ca66e17ed25fce62c4009ff
Cr-Commit-Position: refs/heads/master@{#316561}

[yawano, 2015-02-17 10:34:32]

yawano@chromium.org changed reviewers:
+ fukino@chromium.org

[yawano, 2015-02-17 10:34:32]

My CL broke closure compiler bot. PTAL. Thank you!

[fukino, 2015-02-17 10:47:41]

On 2015/02/17 10:34:32, yawano wrote:
> My CL broke closure compiler bot. PTAL. Thank you!

lgtm!

[yawano, 2015-02-17 11:03:27]

On 2015/02/17 10:47:41, fukino wrote:
> On 2015/02/17 10:34:32, yawano wrote:
> > My CL broke closure compiler bot. PTAL. Thank you!
> 
> lgtm!

Thank you!

[yawano, 2015-02-17 11:03:30]

The CQ bit was checked by yawano@chromium.org

[commit-bot: I haz the power, 2015-02-17 11:04:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/927333002/1

[commit-bot: I haz the power, 2015-02-17 11:30:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-17 11:30:37]

Patchset 1 (id:??) landed as
https://crrev.com/137699b20cabc84d7ca66e17ed25fce62c4009ff
Cr-Commit-Position: refs/heads/master@{#316561}