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

net/url_request/test_url_fetcher_factory.h

Index: net/url_request/test_url_fetcher_factory.h
diff --git a/net/url_request/test_url_fetcher_factory.h b/net/url_request/test_url_fetcher_factory.h
index e871926574b0b7d47428b56a435d77d3be269761..34d54e152f53ffee03566c8762c5819fb7679b95 100644
--- a/net/url_request/test_url_fetcher_factory.h
+++ b/net/url_request/test_url_fetcher_factory.h
@@ -24,6 +24,7 @@
 #include "net/url_request/url_fetcher_factory.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
+#include "url/origin.h"
 
 namespace net {
 
@@ -115,6 +116,7 @@ class TestURLFetcher : public URLFetcher {
   void SetRequestContext(
       URLRequestContextGetter* request_context_getter) override;
   void SetFirstPartyForCookies(const GURL& first_party_for_cookies) override;
+  void SetRequestorOrigin(const url::Origin& requestor_origin) override;
   void SetURLRequestUserData(
       const void* key,
       const CreateDataCallback& create_data_callback) override;