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

net/url_request/url_fetcher_impl.cc

Index: net/url_request/url_fetcher_impl.cc
diff --git a/net/url_request/url_fetcher_impl.cc b/net/url_request/url_fetcher_impl.cc
index 73e785369b518dbdba344c3f1f1b9511593a8d2d..9d51e9eb70f97842821a53548237380b6c3a3575 100644
--- a/net/url_request/url_fetcher_impl.cc
+++ b/net/url_request/url_fetcher_impl.cc
@@ -95,6 +95,10 @@ void URLFetcherImpl::SetFirstPartyForCookies(
   core_->SetFirstPartyForCookies(first_party_for_cookies);
 }
 
+void URLFetcherImpl::SetRequestorOrigin(const url::Origin& requestor_origin) {
+  core_->SetRequestorOrigin(requestor_origin);
+}
+
 void URLFetcherImpl::SetURLRequestUserData(
     const void* key,
     const CreateDataCallback& create_data_callback) {