service worker: use 200 OK for update requests even in the no update case

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 <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
 #include "content/browser/service_worker/service_worker_register_job_base.h"
 #include "content/browser/service_worker/service_worker_registration.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "url/gurl.h"
 
 namespace content {
 
 class ServiceWorkerJobCoordinator;
 class ServiceWorkerStorage;
 
 // Handles the initial registration of a Service Worker and the
 // subsequent update of existing registrations.
 //
 // The control flow includes most or all of the following,
 // 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 {
+class ServiceWorkerRegisterJob : public ServiceWorkerRegisterJobBase,
+                                 public EmbeddedWorkerInstance::Listener {
  public:
   typedef base::Callback<void(ServiceWorkerStatusCode status,
                               const std::string& status_message,
                               ServiceWorkerRegistration* registration)>
       RegistrationCallback;
 
   // For registration jobs.
   CONTENT_EXPORT ServiceWorkerRegisterJob(
       base::WeakPtr<ServiceWorkerContextCore> context,
       const GURL& pattern,
@@ skipping 79 matching lines @@
                 const std::string& status_message);
   void CompleteInternal(ServiceWorkerStatusCode status,
                         const std::string& status_message);
   void ResolvePromise(ServiceWorkerStatusCode status,
                       const std::string& status_message,
                       ServiceWorkerRegistration* registration);
 
   void AddRegistrationToMatchingProviderHosts(
       ServiceWorkerRegistration* registration);
 
+  // EmbeddedWorkerInstance::Listener implementation:
+  void OnScriptLoaded() override;
+
   // The ServiceWorkerContextCore object should always outlive this.
   base::WeakPtr<ServiceWorkerContextCore> context_;
 
   RegistrationJobType job_type_;
   const GURL pattern_;
   const GURL script_url_;
   std::vector<RegistrationCallback> callbacks_;
   Phase phase_;
   Internal internal_;
   bool doom_installing_worker_;
   bool is_promise_resolved_;
   bool should_uninstall_on_failure_;
   bool force_bypass_cache_;
   bool skip_script_comparison_;
   ServiceWorkerStatusCode promise_resolved_status_;
   std::string promise_resolved_status_message_;
   scoped_refptr<ServiceWorkerRegistration> promise_resolved_registration_;
   base::WeakPtrFactory<ServiceWorkerRegisterJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRegisterJob);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REGISTER_JOB_H_