Effectively disable foreign fetch when third party cookies are disabled.

content/browser/service_worker/foreign_fetch_request_handler.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_FOREIGN_FETCH_REQUEST_HANDLER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_FOREIGN_FETCH_REQUEST_HANDLER_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
@@ skipping 104 matching lines @@
 
   scoped_refptr<ServiceWorkerContextWrapper> context_;
   base::WeakPtr<storage::BlobStorageContext> blob_storage_context_;
   ResourceType resource_type_;
   FetchRequestMode request_mode_;
   FetchCredentialsMode credentials_mode_;
   FetchRedirectMode redirect_mode_;
   RequestContextType request_context_type_;
   RequestContextFrameType frame_type_;
   scoped_refptr<ResourceRequestBodyImpl> body_;
+  ResourceContext* resource_context_;
 
   base::WeakPtr<ServiceWorkerURLRequestJob> job_;
   scoped_refptr<ServiceWorkerVersion> target_worker_;
 
   // True if the next time this request is started, the response should be
   // delivered from the network, bypassing the ServiceWorker.
   bool use_network_ = false;
 
   base::WeakPtrFactory<ForeignFetchRequestHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ForeignFetchRequestHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_FOREIGN_FETCH_REQUEST_HANDLER_H_