(Reland) Service Worker: Handle same-scope, new script registration

content/browser/service_worker/service_worker_register_job.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_REGISTER_JOB_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_
 
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 15 matching lines @@
 // depending on what is already registered:
 //  - creating a ServiceWorkerRegistration instance if there isn't
 //    already something registered
 //  - creating a ServiceWorkerVersion for the new version.
 //  - starting a worker for the ServiceWorkerVersion
 //  - firing the 'install' event at the ServiceWorkerVersion
 //  - firing the 'activate' event at the ServiceWorkerVersion
 //  - waiting for older ServiceWorkerVersions to deactivate
 //  - designating the new version to be the 'active' version
 //  - updating storage
-class ServiceWorkerRegisterJob
-    : public ServiceWorkerRegisterJobBase,
-      public EmbeddedWorkerInstance::Listener {
+class ServiceWorkerRegisterJob : public ServiceWorkerRegisterJobBase,
+                                 public EmbeddedWorkerInstance::Listener,
+                                 public ServiceWorkerRegistration::Listener {
  public:
   typedef base::Callback<void(ServiceWorkerStatusCode status,
                               ServiceWorkerRegistration* registration,
                               ServiceWorkerVersion* version)>
       RegistrationCallback;
 
   // For registration jobs.
   CONTENT_EXPORT ServiceWorkerRegisterJob(
       base::WeakPtr<ServiceWorkerContextCore> context,
       const GURL& pattern,
@@ skipping 18 matching lines @@
   virtual bool Equals(ServiceWorkerRegisterJobBase* job) OVERRIDE;
   virtual RegistrationJobType GetType() OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerProviderHostWaitingVersionTest,
                            AssociateInstallingVersionToDocuments);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerProviderHostWaitingVersionTest,
                            DisassociateVersionFromDocuments);
 
   enum Phase {
-     INITIAL,
-     START,
-     REGISTER,
-     UPDATE,
-     INSTALL,
-     STORE,
-     COMPLETE,
-     ABORT,
+    INITIAL,
+    START,
+    WAIT_FOR_UNINSTALL,
+    REGISTER,
+    UPDATE,
+    INSTALL,
+    STORE,
+    COMPLETE,
+    ABORT,
   };
 
   // Holds internal state of ServiceWorkerRegistrationJob, to compel use of the
   // getter/setter functions.
   struct Internal {
     Internal();
     ~Internal();
     scoped_refptr<ServiceWorkerRegistration> registration;
 
     // Holds the version created by this job. It can be the 'installing',
     // 'waiting', or 'active' version depending on the phase.
     scoped_refptr<ServiceWorkerVersion> new_version;
+
+    scoped_refptr<ServiceWorkerRegistration> uninstalling_registration;
   };
 
   void set_registration(ServiceWorkerRegistration* registration);
   ServiceWorkerRegistration* registration();
   void set_new_version(ServiceWorkerVersion* version);
   ServiceWorkerVersion* new_version();
+  void set_uninstalling_registration(ServiceWorkerRegistration* registration);
+  ServiceWorkerRegistration* uninstalling_registration();
 
   void SetPhase(Phase phase);
 
   void ContinueWithRegistration(
       ServiceWorkerStatusCode status,
       const scoped_refptr<ServiceWorkerRegistration>& registration);
   void ContinueWithUpdate(
       ServiceWorkerStatusCode status,
       const scoped_refptr<ServiceWorkerRegistration>& registration);
   void RegisterAndContinue(ServiceWorkerStatusCode status);
+  void WaitForUninstall(
+      const scoped_refptr<ServiceWorkerRegistration>& registration);
+  void ContinueWithRegistrationForSameScriptUrl(
+      const scoped_refptr<ServiceWorkerRegistration>& existing_registration,
+      ServiceWorkerStatusCode status);
   void UpdateAndContinue();
   void OnStartWorkerFinished(ServiceWorkerStatusCode status);
   void OnStoreRegistrationComplete(ServiceWorkerStatusCode status);
   void InstallAndContinue();
   void OnInstallFinished(ServiceWorkerStatusCode status);
   void ActivateAndContinue();
   void OnActivateFinished(ServiceWorkerStatusCode status);
   void Complete(ServiceWorkerStatusCode status);
   void CompleteInternal(ServiceWorkerStatusCode status);
   void ResolvePromise(ServiceWorkerStatusCode status,
                       ServiceWorkerRegistration* registration,
                       ServiceWorkerVersion* version);
 
   // EmbeddedWorkerInstance::Listener override of OnPausedAfterDownload.
   virtual void OnPausedAfterDownload() OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
+  // ServiceWorkerRegistration::Listener overrides
+  virtual void OnRegistrationFinishedUninstalling(
+      ServiceWorkerRegistration* registration) OVERRIDE;
+
   void OnCompareScriptResourcesComplete(
       ServiceWorkerVersion* most_recent_version,
       ServiceWorkerStatusCode status,
       bool are_equal);
 
   void AssociateProviderHostsToRegistration(
       ServiceWorkerRegistration* registration);
 
   // The ServiceWorkerContextCore object should always outlive this.
   base::WeakPtr<ServiceWorkerContextCore> context_;
@@ skipping 10 matching lines @@
   scoped_refptr<ServiceWorkerRegistration> promise_resolved_registration_;
   scoped_refptr<ServiceWorkerVersion> promise_resolved_version_;
   base::WeakPtrFactory<ServiceWorkerRegisterJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegisterJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_