Support getting and deleting token for Instance ID.

google_apis/gcm/engine/registration_info.cc

-// 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.
-
-#include "google_apis/gcm/engine/registration_info.h"
-
-#include "base/strings/string_util.h"
-
-namespace gcm {
-
-RegistrationInfo::RegistrationInfo() {
-}
-
-RegistrationInfo::~RegistrationInfo() {
-}
-
-std::string RegistrationInfo::SerializeAsString() const {
-  if (sender_ids.empty() || registration_id.empty())
-    return std::string();
-
-  // Serialize as:
-  //    sender1,sender2,...=reg_id
-  std::string value;
-  for (std::vector<std::string>::const_iterator iter = sender_ids.begin();
-       iter != sender_ids.end(); ++iter) {
-    DCHECK(!iter->empty() &&
-           iter->find(',') == std::string::npos &&
-           iter->find('=') == std::string::npos);
-    if (!value.empty())
-      value += ",";
-    value += *iter;
-  }
-
-  DCHECK(registration_id.find('=') == std::string::npos);
-  value += '=';
-  value += registration_id;
-  return value;
-}
-
-bool RegistrationInfo::ParseFromString(const std::string& value) {
-  if (value.empty())
-    return true;
-
-  size_t pos = value.find('=');
-  if (pos == std::string::npos)
-    return false;
-
-  std::string senders = value.substr(0, pos);
-  registration_id = value.substr(pos + 1);
-
-  Tokenize(senders, ",", &sender_ids);
-
-  if (sender_ids.empty() || registration_id.empty()) {
-    sender_ids.clear();
-    registration_id.clear();
-    return false;
-  }
-
-  return true;
-}
-
-}  // namespace gcm