Move /fetch to use C++11

Improve C++11 in /fetch
    
Use the actual type in places where it makes the code clearer and not
any longer. Fix spelling error. Use nullptr.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183964

[kenneth.r.christiansen, 2014-10-17 16:18:52]

kenneth.r.christiansen@intel.com changed reviewers:
+ mkwst@chromium.org

[Mike West, 2014-10-17 19:15:56]

On 2014/10/17 16:18:52, kenneth.r.christiansen wrote:
> mailto:kenneth.r.christiansen@intel.com changed reviewers:
> + mailto:mkwst@chromium.org

Sorry! https://codereview.chromium.org/645513003/ came in a bit before this one.
Does this CL contain anything that CL missed?

[kenneth.r.christiansen, 2014-10-18 10:38:02]

On 2014/10/17 at 19:15:56, mkwst wrote:
> On 2014/10/17 16:18:52, kenneth.r.christiansen wrote:
> > mailto:kenneth.r.christiansen@intel.com changed reviewers:
> > + mailto:mkwst@chromium.org
> 
> Sorry! https://codereview.chromium.org/645513003/ came in a bit before this
one. Does this CL contain anything that CL missed?

It has additional changes, I will upload a rebased version

[kenneth.r.christiansen, 2014-10-18 10:41:06]

> It has additional changes, I will upload a rebased version

Done

[Mike West, 2014-10-18 11:47:33]

LGTM, thanks.

[kenneth.r.christiansen, 2014-10-20 06:48:58]

The CQ bit was checked by kenneth.r.christiansen@intel.com

[commit-bot: I haz the power, 2014-10-20 06:49:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/665613002/20001

[commit-bot: I haz the power, 2014-10-20 06:53:15]

Committed patchset #2 (id:20001) as 183964