Quick fix for ChromeVox braille flakiness.

Quick fix for ChromeVox braille flakiness.

The libluis wrapper depends on the load event to fier when
the nacl component is loaded to initialize the braille
translator.  Somehow, this doesn't fire during startup unless
a message is sent to the component which causes braille translation
to not work at all, resulting in no braille output on the display
at all.

This is a minimal workaround intended for backporting to the M-41 branch while
the real cause can be investigated and addressed.

BUG=455889
R=dtseng@chromium.org

Committed: https://crrev.com/25651009b2e8af7a9f484cba914c57352e571750
Cr-Commit-Position: refs/heads/master@{#315319}

[Peter Lundblad, 2015-02-09 15:29:16]

Feel free to run this through the CQ if you like it for shorter round-trip.

[dmazzoni, 2015-02-09 16:08:54]

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

[dmazzoni, 2015-02-09 16:08:54]

The CQ bit was checked by dmazzoni@chromium.org

[dmazzoni, 2015-02-09 16:08:54]

lgtm

[commit-bot: I haz the power, 2015-02-09 16:09:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/905353002/1

[commit-bot: I haz the power, 2015-02-09 16:15:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-09 16:16:07]

Patchset 1 (id:??) landed as
https://crrev.com/25651009b2e8af7a9f484cba914c57352e571750
Cr-Commit-Position: refs/heads/master@{#315319}