Show service worker navigation preload requests in DevTools Network tab.

content/browser/devtools/service_worker_devtools_agent_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_DEVTOOLS_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_
 
 #include <stdint.h>
 
 #include <map>
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "content/browser/devtools/service_worker_devtools_manager.h"
 #include "content/browser/devtools/worker_devtools_agent_host.h"
 
 namespace content {
 
+struct ResourceRequest;
+struct ResourceResponseHead;
+struct ResourceRequestCompletionStatus;
+
 class ServiceWorkerDevToolsAgentHost : public WorkerDevToolsAgentHost {
  public:
   using List = std::vector<scoped_refptr<ServiceWorkerDevToolsAgentHost>>;
   using Map = std::map<std::string,
                        scoped_refptr<ServiceWorkerDevToolsAgentHost>>;
   using ServiceWorkerIdentifier =
       ServiceWorkerDevToolsManager::ServiceWorkerIdentifier;
 
   ServiceWorkerDevToolsAgentHost(WorkerId worker_id,
                                  const ServiceWorkerIdentifier& service_worker,
                                  bool is_installed_version);
 
   void UnregisterWorker();
 
   // DevToolsAgentHost overrides.
   std::string GetType() override;
   std::string GetTitle() override;
   GURL GetURL() override;
   bool Activate() override;
   void Reload() override;
   bool Close() override;
 
   // WorkerDevToolsAgentHost overrides.
   void OnAttachedStateChanged(bool attached) override;
 
   void WorkerVersionInstalled();
   void WorkerVersionDoomed();
 
+  void NavigationPreloadRequestSent(const std::string& request_id,
+                                    const ResourceRequest& request);
+  void NavigationPreloadResponseReceived(const std::string& request_id,
+                                         const GURL& url,
+                                         const ResourceResponseHead& head);
+  void NavigationPreloadCompleted(
+      const std::string& request_id,
+      const ResourceRequestCompletionStatus& completion_status);
+
   int64_t service_worker_version_id() const;
   GURL scope() const;
 
   // If the ServiceWorker has been installed before the worker instance started,
   // it returns the time when the instance started. Otherwise returns the time
   // when the ServiceWorker was installed.
   base::Time version_installed_time() const { return version_installed_time_; }
 
   // Returns the time when the ServiceWorker was doomed.
   base::Time version_doomed_time() const { return version_doomed_time_; }
 
   bool Matches(const ServiceWorkerIdentifier& other);
 
  private:
   ~ServiceWorkerDevToolsAgentHost() override;
   std::unique_ptr<ServiceWorkerIdentifier> service_worker_;
   base::Time version_installed_time_;
   base::Time version_doomed_time_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDevToolsAgentHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_SERVICE_WORKER_DEVTOOLS_AGENT_HOST_H_