Fixed a variable that may be used uninitialized.

Fixed a variable that may be used uninitialized.
Prevents a warning with GCC 4.8 on Android.

BUG=

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170675

[Fabrice de Gans (Google), 2014-04-02 14:09:05]

GCC 4.8 complains this variable might be used uninitialized. While the current
logic makes this case impossible, it's probably best to "fix" it.

[Nico, 2014-04-02 14:53:43]

lgtm

In general, I think we should disable warnings with false positives like this,
but this is harmless enough.

[Fabrice (no longer in Chrome), 2014-04-02 15:02:27]

On 2014/04/02 14:53:43, Nico wrote:
> lgtm
> 
> In general, I think we should disable warnings with false positives like this,
> but this is harmless enough.

It was either that or add something in gyp to disable the warning. This was the
only occurrence of the warning I found.
I also think that in the future, it might be a good idea to have this warning
on, as these things aren't always obvious.

[Fabrice (no longer in Chrome), 2014-04-02 15:02:30]

The CQ bit was checked by fdegans@chromium.org

[commit-bot: I haz the power, 2014-04-02 15:02:33]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fdegans@chromium.org/221873006/1

[commit-bot: I haz the power, 2014-04-02 17:57:07]

Change committed as 170675