Support getting and deleting token for Instance ID.

google_apis/gcm/engine/registration_info.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 GOOGLE_APIS_GCM_ENGINE_REGISTRATION_INFO_H_
-#define GOOGLE_APIS_GCM_ENGINE_REGISTRATION_INFO_H_
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/linked_ptr.h"
-#include "google_apis/gcm/base/gcm_export.h"
-
-namespace gcm {
-
-struct GCM_EXPORT RegistrationInfo {
-  RegistrationInfo();
-  ~RegistrationInfo();
-
-  std::string SerializeAsString() const;
-  bool ParseFromString(const std::string& value);
-
-  std::vector<std::string> sender_ids;
-  std::string registration_id;
-};
-
-// Map of app id to registration info.
-typedef std::map<std::string, linked_ptr<RegistrationInfo> >
-RegistrationInfoMap;
-
-}  // namespace gcm
-
-#endif  // GOOGLE_APIS_GCM_ENGINE_REGISTRATION_INFO_H_