Copy the {credentials,cache,redirect,} modes for Fetch Requests

third_party/WebKit/Source/modules/fetch/Request.cpp

Index: third_party/WebKit/Source/modules/fetch/Request.cpp
diff --git a/third_party/WebKit/Source/modules/fetch/Request.cpp b/third_party/WebKit/Source/modules/fetch/Request.cpp
index 0b1ebcc6fa37cac4b449ffe524d12e4b3a79890e..2bab113355c17f0416d495163afc0227885f74f5 100644
--- a/third_party/WebKit/Source/modules/fetch/Request.cpp
+++ b/third_party/WebKit/Source/modules/fetch/Request.cpp
@@ -722,6 +722,10 @@ bool Request::HasBody() const {
 void Request::PopulateWebServiceWorkerRequest(
     WebServiceWorkerRequest& web_request) const {
   web_request.SetMethod(method());
+  web_request.SetMode(request_->Mode());
+  web_request.SetCredentialsMode(request_->Credentials());
+  web_request.SetCacheMode(request_->CacheMode());
+  web_request.SetRedirectMode(request_->Redirect());
   web_request.SetRequestContext(request_->Context());
 
   // Strip off the fragment part of URL. So far, all users of