DevTools: Attach all Service Workers except for old redundant ones.

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/protocol/network_handler.h"
 #include "content/browser/devtools/service_worker_devtools_manager.h"
 #include "content/browser/devtools/worker_devtools_agent_host.h"
 
 namespace content {
 
 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);
+                                 const ServiceWorkerIdentifier& service_worker,
+                                 bool is_installed_version);
 
   void UnregisterWorker();
 
   // DevToolsAgentHost overrides.
   Type GetType() override;
   std::string GetTitle() override;
   GURL GetURL() override;
   bool Activate() override;
   bool Close() override;
 
   // WorkerDevToolsAgentHost overrides.
   void OnAttachedStateChanged(bool attached) override;
 
+  void WorkerVersionInstalled();
+  void WorkerVersionDoomed();
+
   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_;
   std::unique_ptr<devtools::network::NetworkHandler> network_handler_;
+  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_