Remove dup'ed code for RequestorOrigin and FirstPartyCookie

third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp

Index: third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
diff --git a/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp b/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
index 76deee5af9b6c753fe60cd2aafd4b5debd845b3b..9738544126ee230b417f34fa765246a48425c2d6 100644
--- a/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
@@ -262,10 +262,7 @@ void WorkerFetchContext::SetFirstPartyCookieAndRequestorOrigin(
     ResourceRequest& out_request) {
   if (out_request.FirstPartyForCookies().IsNull())
     out_request.SetFirstPartyForCookies(FirstPartyForCookies());
-  // TODO(mkwst): It would be cleaner to adjust blink::ResourceRequest to
-  // initialize itself with a `nullptr` initiator so that this can be a simple
-  // `isNull()` check. https://crbug.com/625969
-  if (out_request.RequestorOrigin()->IsUnique())
+  if (!out_request.RequestorOrigin())
     out_request.SetRequestorOrigin(GetSecurityOrigin());
 }