[ServiceWorker] Pass FetchEvent related properties of WebURLRequest to Blink for redirect responses.

[ServiceWorker] Pass FetchEvent related properties of WebURLRequest to Blink for redirect responses.

Currently SkipServiceWorker and FetchRequestMode and FetchCredentialsMode are not set correctly when performing redirects.
This breaks our CORS checking functionality related to ServiceWorker's FetchEvent.

I will add LayoutTests for this later.
https://codereview.chromium.org/712303002/

BUG=431985
Committed: https://crrev.com/cd1e2f22cfacd026274a124d509362e02b24282b
Cr-Commit-Position: refs/heads/master@{#303761}

[horo, 2014-11-11 02:26:59]

horo@chromium.org changed reviewers:
+ mkwst@chromium.org

[horo, 2014-11-11 02:26:59]

mkwst@
Could you please review this?

[Mike West, 2014-11-11 05:48:21]

LGTM.

[horo, 2014-11-11 06:47:34]

horo@chromium.org changed reviewers:
+ jam@chromium.org

[horo, 2014-11-11 06:47:35]

jam@
Could you please review?

[jam, 2014-11-11 18:22:16]

lgtm

[horo, 2014-11-11 22:29:44]

The CQ bit was checked by horo@chromium.org

[commit-bot: I haz the power, 2014-11-11 22:31:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/705273004/1

[commit-bot: I haz the power, 2014-11-12 00:36:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-12 00:37:16]

Patchset 1 (id:??) landed as
https://crrev.com/cd1e2f22cfacd026274a124d509362e02b24282b
Cr-Commit-Position: refs/heads/master@{#303761}