Push API: Validate storage before returning cached subscriptions

components/gcm_driver/gcm_driver_desktop.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 COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_
 #define COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 40 matching lines @@
       const std::string& user_agent,
       PrefService* prefs,
       const base::FilePath& store_path,
       const scoped_refptr<net::URLRequestContextGetter>& request_context,
       const scoped_refptr<base::SequencedTaskRunner>& ui_thread,
       const scoped_refptr<base::SequencedTaskRunner>& io_thread,
       const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner);
   ~GCMDriverDesktop() override;
 
   // GCMDriver implementation:
+  void ValidateRegistration(
+      const std::string& app_id,
+      const std::vector<std::string>& sender_ids,
+      const std::string& registration_id,
+      const ValidateRegistrationCallback& callback) override;
   void Shutdown() override;
   void OnSignedIn() override;
   void OnSignedOut() override;
   void AddAppHandler(const std::string& app_id,
                      GCMAppHandler* handler) override;
   void RemoveAppHandler(const std::string& app_id) override;
   void AddConnectionObserver(GCMConnectionObserver* observer) override;
   void RemoveConnectionObserver(GCMConnectionObserver* observer) override;
   void Enable() override;
   void Disable() override;
@@ skipping 33 matching lines @@
   void RecordDecryptionFailure(const std::string& app_id,
                                GCMEncryptionProvider::DecryptionResult result)
       override;
 
   // InstanceIDHandler implementation:
   void GetToken(const std::string& app_id,
                 const std::string& authorized_entity,
                 const std::string& scope,
                 const std::map<std::string, std::string>& options,
                 const GetTokenCallback& callback) override;
+  void ValidateToken(const std::string& app_id,
+                     const std::string& authorized_entity,
+                     const std::string& scope,
+                     const std::string& token,
+                     const ValidateTokenCallback& callback) override;
   void DeleteToken(const std::string& app_id,
                    const std::string& authorized_entity,
                    const std::string& scope,
                    const DeleteTokenCallback& callback) override;
   void AddInstanceIDData(const std::string& app_id,
                          const std::string& instance_id,
                          const std::string& extra_data) override;
   void RemoveInstanceIDData(const std::string& app_id) override;
   void GetInstanceIDData(const std::string& app_id,
                          const GetInstanceIDDataCallback& callback) override;
 
  private:
   class IOWorker;
 
   typedef std::tuple<std::string, std::string, std::string> TokenTuple;
   struct TokenTupleComparer {
     bool operator()(const TokenTuple& a, const TokenTuple& b) const;
   };
 
+  void DoValidateRegistration(
+      std::unique_ptr<RegistrationInfo> registration_info,
+      const std::string& registration_id,
+      const ValidateRegistrationCallback& callback);
+
   //  Stops the GCM service. It can be restarted by calling EnsureStarted again.
   void Stop();
 
   // Remove cached data when GCM service is stopped.
   void RemoveCachedData();
 
   void DoRegister(const std::string& app_id,
                   const std::vector<std::string>& sender_ids);
   void DoUnregister(const std::string& app_id);
   void DoSend(const std::string& app_id,
@@ skipping 93 matching lines @@
 
   // Used to pass a weak pointer to the IO worker.
   base::WeakPtrFactory<GCMDriverDesktop> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMDriverDesktop);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_