[ServiceWorker] Pass FetchEvent related properties of WebURLRequest t…

…o 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

Review URL: https://codereview.chromium.org/705273004

Cr-Commit-Position: refs/heads/master@{#303761}

content/child/web_url_loader_impl.cc

@@ -551,6 +551,9 @@ bool WebURLLoaderImpl::Context::OnReceivedRedirect(
   new_request.setDownloadToFile(request_.downloadToFile());
   new_request.setRequestContext(request_.requestContext());
   new_request.setFrameType(request_.frameType());
+  new_request.setSkipServiceWorker(request_.skipServiceWorker());
+  new_request.setFetchRequestMode(request_.fetchRequestMode());
+  new_request.setFetchCredentialsMode(request_.fetchCredentialsMode());
 
   new_request.setHTTPReferrer(WebString::fromUTF8(redirect_info.new_referrer),
                               referrer_policy_);