Introduce chrome://flags/#network-prediction-options-for-service-worker

content/browser/service_worker/service_worker_context_wrapper.h

 // Copyright 2013 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_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 92 matching lines @@
       const CheckHasServiceWorkerCallback& callback) override;
   void CountExternalRequestsForTest(
       const GURL& url,
       const CountExternalRequestsCallback& callback) override;
   void StopAllServiceWorkersForOrigin(const GURL& origin) override;
   void ClearAllServiceWorkersForTest(const base::Closure& callback) override;
   bool StartingExternalRequest(int64_t service_worker_version_id,
                                const std::string& request_uuid) override;
   bool FinishedExternalRequest(int64_t service_worker_version_id,
                                const std::string& request_uuid) override;
+  void StartServiceWorkerForNavigationPreconnect(
+      const GURL& document_url,
+      RenderProcessHost* host,
+      const ResultCallback& callback) override;
 
   // These methods must only be called from the IO thread.
   ServiceWorkerRegistration* GetLiveRegistration(int64_t registration_id);
   ServiceWorkerVersion* GetLiveVersion(int64_t version_id);
   std::vector<ServiceWorkerRegistrationInfo> GetAllLiveRegistrationInfo();
   std::vector<ServiceWorkerVersionInfo> GetAllLiveVersionInfo();
 
   // Must be called from the IO thread.
   void HasMainFrameProviderHost(const GURL& origin,
                                 const BoolCallback& callback) const;
@@ skipping 149 matching lines @@
       ServiceWorkerStatusCode status,
       const std::vector<ServiceWorkerRegistrationInfo>& registrations);
 
   void DidCheckHasServiceWorker(const CheckHasServiceWorkerCallback& callback,
                                 content::ServiceWorkerCapability status);
 
   void DidFindRegistrationForUpdate(
       ServiceWorkerStatusCode status,
       scoped_refptr<content::ServiceWorkerRegistration> registration);
 
+  void DidCheckRenderProcessForNavigationPreconnect(
+      const GURL& document_url,
+      int render_process_id,
+      const ResultCallback& callback);
+
+  void DidFindRegistrationForNavigationPreconnect(
+      int render_process_id,
+      const ResultCallback& callback,
+      ServiceWorkerStatusCode status,
+      scoped_refptr<ServiceWorkerRegistration> registration);
+
+  void DidStartServiceWorkerForNavigationPreconnect(
+      const GURL& pattern,
+      int render_process_id,
+      const ResultCallback& callback,
+      ServiceWorkerStatusCode code);
+
   // The core context is only for use on the IO thread.
   // Can be null before/during init, during/after shutdown, and after
   // DeleteAndStartOver fails.
   ServiceWorkerContextCore* context();
 
   const scoped_refptr<base::ObserverListThreadSafe<
       ServiceWorkerContextObserver>> observer_list_;
   const std::unique_ptr<ServiceWorkerProcessManager> process_manager_;
   // Cleared in ShutdownOnIO():
   std::unique_ptr<ServiceWorkerContextCore> context_core_;
 
   // Initialized in Init(); true if the user data directory is empty.
   bool is_incognito_;
 
   // Raw pointer to the StoragePartitionImpl owning |this|.
   StoragePartitionImpl* storage_partition_;
 
   // The ResourceContext associated with this context.
   ResourceContext* resource_context_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextWrapper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WRAPPER_H_