Make use of blink::WebNavigatorConnectCallbacks typedef

Make use of blink::WebNavigatorConnectCallbacks typedef

Switch NavigatorConnectProvider over to using this type alias instead
of its WebCallbacks<> expansion.

R=mek
BUG=445388
Committed: https://crrev.com/4cbcd6d212774d2668bcbd4dee6dec94df8d84a8
Cr-Commit-Position: refs/heads/master@{#309766}

[sof, 2014-12-30 09:41:03]

sigbjornf@opera.com changed reviewers:
+ mek@chromium.org

[sof, 2014-12-30 09:41:04]

Please take a look.

Just some drive-by-tidying, hope you don't mind.

[Marijn Kruisselbrink, 2014-12-30 15:28:28]

On 2014/12/30 09:41:04, sof wrote:
> Please take a look.
> 
> Just some drive-by-tidying, hope you don't mind.
Thanks, LGTM

[sof, 2014-12-30 15:31:06]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-12-30 15:31:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/810953007/1

[commit-bot: I haz the power, 2014-12-30 19:24:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-30 19:25:40]

Patchset 1 (id:??) landed as
https://crrev.com/4cbcd6d212774d2668bcbd4dee6dec94df8d84a8
Cr-Commit-Position: refs/heads/master@{#309766}