Skip foreign fetch when the skipServiceWorker flag is set on a request.

content/renderer/shared_worker/embedded_shared_worker_stub.cc

 // Copyright 2014 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.
 
 #include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 73 matching lines @@
                        blink::WebURLRequest& request) override {
     ServiceWorkerNetworkProvider* provider =
         GetNetworkProviderFromDataSource(data_source);
     std::unique_ptr<RequestExtraData> extra_data(new RequestExtraData);
     extra_data->set_service_worker_provider_id(provider->provider_id());
     request.setExtraData(extra_data.release());
     // Explicitly set the SkipServiceWorker flag for subresources here if the
     // renderer process hasn't received SetControllerServiceWorker message.
     if (request.getRequestContext() !=
             blink::WebURLRequest::RequestContextSharedWorker &&
-        !provider->IsControlledByServiceWorker()) {
-      request.setSkipServiceWorker(true);
+        !provider->IsControlledByServiceWorker() &&
+        request.skipServiceWorker() !=
+            blink::WebURLRequest::SkipServiceWorker::All) {
+      request.setSkipServiceWorker(
+          blink::WebURLRequest::SkipServiceWorker::Controlling);
     }
   }
 
   bool isControlledByServiceWorker(blink::WebDataSource& data_source) override {
     ServiceWorkerNetworkProvider* provider =
         GetNetworkProviderFromDataSource(&data_source);
     return provider->IsControlledByServiceWorker();
   }
 
   int64_t serviceWorkerID(blink::WebDataSource& data_source) override {
@@ skipping 197 matching lines @@
   }
 }
 
 void EmbeddedSharedWorkerStub::OnTerminateWorkerContext() {
   // After this we wouldn't get any IPC for this stub.
   running_ = false;
   impl_->terminateWorkerContext();
 }
 
 }  // namespace content