[GCM] Exposing persistence of account mappings in GCM Driver

components/gcm_driver/gcm_driver.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_H_
 #define COMPONENTS_GCM_DRIVER_GCM_DRIVER_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "components/gcm_driver/default_gcm_app_handler.h"
 #include "components/gcm_driver/gcm_client.h"
 
 namespace gcm {
 
 class GCMAppHandler;
+struct AccountMapping;
 
 // Bridge between GCM users in Chrome and the platform-specific implementation.
 class GCMDriver {
  public:
   typedef std::map<std::string, GCMAppHandler*> GCMAppHandlerMap;
   typedef base::Callback<void(const std::string& registration_id,
                               GCMClient::Result result)> RegisterCallback;
   typedef base::Callback<void(const std::string& message_id,
                               GCMClient::Result result)> SendCallback;
   typedef base::Callback<void(GCMClient::Result result)> UnregisterCallback;
@@ skipping 72 matching lines @@
   // Get GCM client internal states and statistics.
   // If clear_logs is true then activity logs will be cleared before the stats
   // are returned.
   virtual void GetGCMStatistics(const GetGCMStatisticsCallback& callback,
                                 bool clear_logs) = 0;
 
   // Enables/disables GCM activity recording, and then returns the stats.
   virtual void SetGCMRecording(const GetGCMStatisticsCallback& callback,
                                bool recording) = 0;
 
+  // Updates the |account_mapping| information in persistent store.
+  virtual void UpdateAccountMapping(const AccountMapping& account_mapping) = 0;
+
+  // Removes the account mapping information reated to |account_id| from
+  // persistent store.
+  virtual void RemoveAccountMapping(const std::string& account_id) = 0;
+
  protected:
   // Ensures that the GCM service starts (if necessary conditions are met).
   virtual GCMClient::Result EnsureStarted() = 0;
 
   // Platform-specific implementation of Register.
   virtual void RegisterImpl(const std::string& app_id,
                             const std::vector<std::string>& sender_ids) = 0;
 
   // Platform-specific implementation of Unregister.
   virtual void UnregisterImpl(const std::string& app_id) = 0;
@@ skipping 41 matching lines @@
 
   // The default handler when no app handler can be found in the map.
   DefaultGCMAppHandler default_app_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMDriver);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_DRIVER_H_