ServiceWorker: Make "ready" fetches registration from browser process(2/3).

content/browser/service_worker/service_worker_provider_host.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_PROVIDER_HOST_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_HOST_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 29 matching lines @@
 // document.
 //
 // Note this class can also host a running service worker, in which
 // case it will observe resource loads made directly by the service worker.
 class CONTENT_EXPORT ServiceWorkerProviderHost
     : public NON_EXPORTED_BASE(ServiceWorkerRegistration::Listener),
       public base::SupportsWeakPtr<ServiceWorkerProviderHost> {
  public:
   using GetClientInfoCallback =
       base::Callback<void(const ServiceWorkerClientInfo&)>;
+  using GetRegistrationForReadyCallback =
+      base::Callback<void(ServiceWorkerRegistration* reigstration)>;
 
   // If |render_frame_id| is MSG_ROUTING_NONE, this provider host works for the
   // worker context, i.e. ServiceWorker or SharedWorker.
   // |provider_type| gives additional information whether the provider is
   // created for controller (ServiceWorker) or controllee (Document or
   // SharedWorker).
   ServiceWorkerProviderHost(int render_process_id,
                             int render_frame_id,
                             int provider_id,
                             ServiceWorkerProviderType provider_type,
@@ skipping 94 matching lines @@
   // Asks the renderer to send back the document information.
   void GetClientInfo(const GetClientInfoCallback& callback) const;
 
   // Adds reference of this host's process to the |pattern|, the reference will
   // be removed in destructor.
   void AddScopedProcessReferenceToPattern(const GURL& pattern);
 
   // |registration| claims the document to be controlled.
   void ClaimedByRegistration(ServiceWorkerRegistration* registration);
 
+  // Called by dispatcher host to get the registration for the "ready" property.
+  // https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#navigator-service-worker-ready

[falken, 2015/03/02 02:09:40]

Can you add a comment about the return value?

[xiang, 2015/03/03 08:56:04]

Done.

+  bool GetRegistrationForReady(const GetRegistrationForReadyCallback& callback);
+
   // Methods to support cross site navigations.
   void PrepareForCrossSiteTransfer();
   void CompleteCrossSiteTransfer(
       int new_process_id,
       int new_frame_id,
       int new_provider_id,
       ServiceWorkerProviderType new_provider_type,
       ServiceWorkerDispatcherHost* dispatcher_host);
   ServiceWorkerDispatcherHost* dispatcher_host() const {
     return dispatcher_host_;
   }
 
   // Sends event messages to the renderer. Events for the worker are queued up
   // until the worker thread id is known via SetReadyToSendMessagesToWorker().
   void SendUpdateFoundMessage(
       const ServiceWorkerRegistrationObjectInfo& object_info);
   void SendSetVersionAttributesMessage(
       int registration_handle_id,
       ChangedVersionAttributesMask changed_mask,
       ServiceWorkerVersion* installing_version,
       ServiceWorkerVersion* waiting_version,
       ServiceWorkerVersion* active_version);
   void SendServiceWorkerStateChangedMessage(
       int worker_handle_id,
       blink::WebServiceWorkerState state);
 
   // Sets the worker thread id and flushes queued events.
   void SetReadyToSendMessagesToWorker(int render_thread_id);
 
+  void AddMatchingRegistration(ServiceWorkerRegistration* registration);
+  void RemoveMatchingRegistration(ServiceWorkerRegistration* registration);
+
+  // An optimized implementation of [[Match Service Worker Registration]]
+  // for current document.
+  ServiceWorkerRegistration* MatchRegistration() const;
+
  private:
   friend class ServiceWorkerProviderHostTest;
   friend class ServiceWorkerWriteToCacheJobTest;
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerContextRequestHandlerTest,
                            UpdateBefore24Hours);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerContextRequestHandlerTest,
                            UpdateAfter24Hours);
 
+  struct OneShotGetReadyCallback {
+    GetRegistrationForReadyCallback callback;
+    bool called;
+
+    OneShotGetReadyCallback(const GetRegistrationForReadyCallback& callback);
+    ~OneShotGetReadyCallback();
+  };
+
   // ServiceWorkerRegistration::Listener overrides.
+  void OnVersionAttributesChanged(
+      ServiceWorkerRegistration* registration,
+      ChangedVersionAttributesMask changed_mask,
+      const ServiceWorkerRegistrationInfo& info) override;
   void OnRegistrationFailed(ServiceWorkerRegistration* registration) override;
+  void OnRegistrationFinishedUninstalling(
+      ServiceWorkerRegistration* registration) override;
   void OnSkippedWaiting(ServiceWorkerRegistration* registration) override;
 
   // Sets the controller version field to |version| or if |version| is NULL,
   // clears the field.
   void SetControllerVersionAttribute(ServiceWorkerVersion* version);
 
   void SendAssociateRegistrationMessage();
 
   // Increase/decrease this host's process reference for |pattern|.
   void IncreaseProcessReference(const GURL& pattern);
   void DecreaseProcessReference(const GURL& pattern);
 
+  void ReturnRegistrationForReadyIfNeeded();
+
   bool IsReadyToSendMessages() const;
   void Send(IPC::Message* message) const;
 
   int render_process_id_;
   int render_frame_id_;
   int render_thread_id_;
   int provider_id_;
   ServiceWorkerProviderType provider_type_;
   GURL document_url_;
   GURL topmost_frame_url_;
 
   std::vector<GURL> associated_patterns_;
   scoped_refptr<ServiceWorkerRegistration> associated_registration_;
 
+  // Keyed by registration scope URL length.
+  typedef std::map<size_t, scoped_refptr<ServiceWorkerRegistration>>
+      ServiceWorkerRegistrationMap;
+  // Contains all living registrations which has pattern this document's
+  // URL starts with.
+  ServiceWorkerRegistrationMap matching_registrations_;
+
+  scoped_ptr<OneShotGetReadyCallback> get_ready_callback_;
   scoped_refptr<ServiceWorkerVersion> controlling_version_;
   scoped_refptr<ServiceWorkerVersion> running_hosted_version_;
   base::WeakPtr<ServiceWorkerContextCore> context_;
   ServiceWorkerDispatcherHost* dispatcher_host_;
   bool allow_association_;
   bool is_claiming_;
 
   std::vector<base::Closure> queued_events_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProviderHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_HOST_H_