Service Worker: Add metrics and timeout for starting a Service Worker.

content/browser/service_worker/service_worker_version.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_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 48 matching lines @@
 // script for a given pattern. When a script is upgraded, there may be
 // more than one ServiceWorkerVersion "running" at a time, but only
 // one of them is activated. This class connects the actual script with a
 // running worker.
 class CONTENT_EXPORT ServiceWorkerVersion
     : NON_EXPORTED_BASE(public base::RefCounted<ServiceWorkerVersion>),
       public EmbeddedWorkerInstance::Listener {
  public:
   typedef base::Callback<void(ServiceWorkerStatusCode)> StatusCallback;
   typedef base::Callback<void(ServiceWorkerStatusCode,
-                              const IPC::Message& message)> MessageCallback;
-  typedef base::Callback<void(ServiceWorkerStatusCode,
                               ServiceWorkerFetchEventResult,
                               const ServiceWorkerResponse&)> FetchCallback;
   typedef base::Callback<void(ServiceWorkerStatusCode, bool)>
       CrossOriginConnectCallback;
 
   enum RunningStatus {
     STOPPED = EmbeddedWorkerInstance::STOPPED,
     STARTING = EmbeddedWorkerInstance::STARTING,
     RUNNING = EmbeddedWorkerInstance::RUNNING,
     STOPPING = EmbeddedWorkerInstance::STOPPING,
@@ skipping 231 matching lines @@
  private:
   class GetClientDocumentsCallback;
 
   friend class base::RefCounted<ServiceWorkerVersion>;
   friend class ServiceWorkerURLRequestJobTest;
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerControlleeRequestHandlerTest,
                            ActivateWaitingVersion);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionTest, ScheduleStopWorker);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionTest, KeepAlive);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionTest, ListenerAvailability);
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerFailToStartTest, Timeout);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionBrowserTest,
                            TimeoutStartingWorker);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerVersionBrowserTest,
                            TimeoutWorkerInEvent);
   friend class ServiceWorkerVersionBrowserTest;
 
   typedef ServiceWorkerVersion self;
   typedef std::map<ServiceWorkerProviderHost*, int> ControlleeMap;
   typedef IDMap<ServiceWorkerProviderHost> ControlleeByIDMap;
 
   ~ServiceWorkerVersion() override;
 
   // EmbeddedWorkerInstance::Listener overrides:
   void OnScriptLoaded() override;
   void OnStarted() override;
   void OnStopped(EmbeddedWorkerInstance::Status old_status) override;
   void OnReportException(const base::string16& error_message,
                          int line_number,
                          int column_number,
                          const GURL& source_url) override;
   void OnReportConsoleMessage(int source_identifier,
                               int message_level,
                               const base::string16& message,
                               int line_number,
                               const GURL& source_url) override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
-  void OnStartMessageSent(ServiceWorkerStatusCode status);
+  void OnStartSentAndScriptEvaluated(ServiceWorkerStatusCode status);
 
   void DispatchInstallEventAfterStartWorker(int active_version_id,
                                             const StatusCallback& callback);
   void DispatchActivateEventAfterStartWorker(const StatusCallback& callback);
 
   void DispatchMessageEventInternal(
       const base::string16& message,
       const std::vector<TransferredMessagePort>& sent_message_ports,
       const StatusCallback& callback);
 
@@ skipping 54 matching lines @@
   void SchedulePingWorker();
   void OnPingTimeout();
 
   // ScheduleStopWorker is for terminating idle workers. It schedules an attempt
   // to stop: if the worker has no inflight requests when the attempt runs, the
   // worker is terminated, otherwise the attempt is rescheduled.
   void ScheduleStopWorker();
   void StopWorkerIfIdle();
   bool HasInflightRequests() const;
 
+  // ScheduleStartWorkerTimeout is called when attempting to the start the

[rkaplow, 2015/03/03 15:58:41]

to* start

+  // embedded worker. It sets a timer for calling OnStartWorkerTimeout, which
+  // invokes start callbacks with ERROR_TIMEOUT. It also adds its own start
+  // callback RecordStartWorkerResult which cancels the timer and records
+  // metrics about startup.
+  void ScheduleStartWorkerTimeout();
+  void RecordStartWorkerResult(ServiceWorkerStatusCode status);
+  void OnStartWorkerTimeout();
+
   void DoomInternal();
 
   template <typename IDMAP>
   void RemoveCallbackAndStopIfDoomed(IDMAP* callbacks, int request_id);
 
   const int64 version_id_;
   int64 registration_id_;
   GURL script_url_;
   GURL scope_;
   Status status_;
@@ skipping 19 matching lines @@
 
   ControlleeMap controllee_map_;
   ControlleeByIDMap controllee_by_id_;
   // Will be null while shutting down.
   base::WeakPtr<ServiceWorkerContextCore> context_;
   ObserverList<Listener> listeners_;
   ServiceWorkerScriptCacheMap script_cache_map_;
   base::OneShotTimer<ServiceWorkerVersion> stop_worker_timer_;
   base::OneShotTimer<ServiceWorkerVersion> update_timer_;
   base::OneShotTimer<ServiceWorkerVersion> ping_worker_timer_;
+  base::OneShotTimer<ServiceWorkerVersion> start_worker_timeout_timer_;
+  base::TimeTicks start_timing_;
   bool ping_timed_out_;
   bool is_doomed_;
   std::vector<int> pending_skip_waiting_requests_;
   bool skip_waiting_;
   scoped_ptr<net::HttpResponseInfo> main_script_http_info_;
 
   base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerVersion);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_