Implement dumb URLLoader{Factory} for ServiceWorker script loading

content/renderer/service_worker/service_worker_context_client.cc

 // 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.
 
 #include "content/renderer/service_worker/service_worker_context_client.h"
 
 #include <map>
 #include <memory>
 #include <utility>
 
@@ skipping 82 matching lines @@
 
   // Blink calls this method for each request starting with the main script,
   // we tag them with the provider id.
   void WillSendRequest(blink::WebURLRequest& request) override {
     std::unique_ptr<RequestExtraData> extra_data(new RequestExtraData);
     extra_data->set_service_worker_provider_id(provider_->provider_id());
     extra_data->set_originated_from_service_worker(true);
     // Service workers are only available in secure contexts, so all requests
     // are initiated in a secure context.
     extra_data->set_initiated_in_secure_context(true);
+    extra_data->set_url_loader_factory_override(
+        provider_->script_loader_factory());
     request.SetExtraData(extra_data.release());
   }
 
   int GetProviderID() const override { return provider_->provider_id(); }
 
  private:
   std::unique_ptr<ServiceWorkerNetworkProvider> provider_;
 };
 
 class StreamHandleListener
@@ skipping 1573 matching lines @@
 }
 
 base::WeakPtr<ServiceWorkerContextClient>
 ServiceWorkerContextClient::GetWeakPtr() {
   DCHECK(worker_task_runner_->RunsTasksInCurrentSequence());
   DCHECK(context_);
   return context_->weak_factory.GetWeakPtr();
 }
 
 }  // namespace content