Implement some follow-ups after mojofiction of Push-messaging.

content/browser/push_messaging/push_messaging_manager.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_PUSH_MESSAGING_PUSH_MESSAGING_MANAGER_H_
 #define CONTENT_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_MANAGER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 44 matching lines @@
   struct RegisterData;
   class Core;
 
   friend class BrowserThread;
   friend class base::DeleteHelper<PushMessagingManager>;
   friend struct BrowserThread::DeleteOnThread<BrowserThread::IO>;
 
   ~PushMessagingManager() override;
 
   void DidCheckForExistingRegistration(
-      const SubscribeCallback& callback,
       const RegisterData& data,
       const std::vector<std::string>& push_registration_id,
       ServiceWorkerStatusCode service_worker_status);
 
-  void DidGetEncryptionKeys(const SubscribeCallback& callback,
-                            const RegisterData& data,
+  void DidGetEncryptionKeys(const RegisterData& data,
                             const std::string& push_registration_id,
                             bool success,
                             const std::vector<uint8_t>& p256dh,
                             const std::vector<uint8_t>& auth);
 
-  void DidGetSenderIdFromStorage(const SubscribeCallback& callback,
-                                 const RegisterData& data,
+  void DidGetSenderIdFromStorage(const RegisterData& data,
                                  const std::vector<std::string>& sender_id,
                                  ServiceWorkerStatusCode service_worker_status);
 
   // Called via PostTask from UI thread.
-  void PersistRegistrationOnIO(const SubscribeCallback& callback,
-                               const RegisterData& data,
+  void PersistRegistrationOnIO(const RegisterData& data,
                                const std::string& push_registration_id,
                                const std::vector<uint8_t>& p256dh,
                                const std::vector<uint8_t>& auth);
 
   void DidPersistRegistrationOnIO(
-      const SubscribeCallback& callback,
       const RegisterData& data,
       const std::string& push_registration_id,
       const std::vector<uint8_t>& p256dh,
       const std::vector<uint8_t>& auth,
       ServiceWorkerStatusCode service_worker_status);
 
   // Called both from IO thread, and via PostTask from UI thread.
-  void SendSubscriptionError(const SubscribeCallback& callback,
-                             const RegisterData& data,
+  void SendSubscriptionError(const RegisterData& data,
                              PushRegistrationStatus status);
   // Called both from IO thread, and via PostTask from UI thread.
-  void SendSubscriptionSuccess(const SubscribeCallback& callback,
-                               const RegisterData& data,
+  void SendSubscriptionSuccess(const RegisterData& data,
                                PushRegistrationStatus status,
                                const std::string& push_subscription_id,
                                const std::vector<uint8_t>& p256dh,
                                const std::vector<uint8_t>& auth);
 
   void UnsubscribeHavingGottenSenderId(
       const UnsubscribeCallback& callback,
       int64_t service_worker_registration_id,
       const GURL& requesting_origin,
       const std::vector<std::string>& sender_id,
@@ skipping 37 matching lines @@
   mojo::BindingSet<mojom::PushMessaging> bindings_;
 
   base::WeakPtrFactory<PushMessagingManager> weak_factory_io_to_io_;
 
   DISALLOW_COPY_AND_ASSIGN(PushMessagingManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_MANAGER_H_