WIP: Teach "First-Party-Only" cookies about the requestor origin.

net/url_request/url_request_http_job.cc

Index: net/url_request/url_request_http_job.cc
diff --git a/net/url_request/url_request_http_job.cc b/net/url_request/url_request_http_job.cc
index 30bd8e220d81a189cad979ccb2f9b6f8f2383242..b095464a8189c1338e2d41043b195de1fc081afe 100644
--- a/net/url_request/url_request_http_job.cc
+++ b/net/url_request/url_request_http_job.cc
@@ -659,10 +659,12 @@ void URLRequestHttpJob::DoLoadCookies() {
   // TODO(mkwst): Drop this `if` once we decide whether or not to ship
   // first-party cookies: https://crbug.com/459154
   if (network_delegate() &&
-      network_delegate()->FirstPartyOnlyCookieExperimentEnabled())
+      network_delegate()->FirstPartyOnlyCookieExperimentEnabled()) {
     options.set_first_party_url(request_->first_party_for_cookies());
-  else
+    options.set_requestor_origin(request_->requestor_origin());
+  } else {
     options.set_include_first_party_only();
+  }
 
   request_->context()->cookie_store()->GetCookiesWithOptionsAsync(
       request_->url(), options, base::Bind(&URLRequestHttpJob::OnCookiesLoaded,