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 e9ce4835c899b78334a09276f7f2144e4facddbb..592cf2ba5f6c1332d74bdda666a58501274b0f32 100644
--- a/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
@@ -263,10 +263,7 @@ 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());
 }