[GCM] Make sure GCM checkout logic is invoked when the profile is signed out

google_apis/gcm/engine/mcs_client.cc

 // Copyright 2013 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/mcs_client.h"
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 319 matching lines @@
 
   to_send_.push_back(make_linked_ptr(packet_info.release()));
 
   // Notify that the messages has been succsfully queued for sending.
   // TODO(jianli): We should report QUEUED after writing to GCM store succeeds.
   NotifyMessageSendStatus(message.GetProtobuf(), QUEUED);
 
   MaybeSendMessage();
 }
 
-void MCSClient::Destroy() {
-  gcm_store_->Destroy(base::Bind(&MCSClient::OnGCMUpdateFinished,
-                                 weak_ptr_factory_.GetWeakPtr()));
-}
-
 void MCSClient::ResetStateAndBuildLoginRequest(
     mcs_proto::LoginRequest* request) {
   DCHECK(android_id_);
   DCHECK(security_token_);
   stream_id_in_ = 0;
   stream_id_out_ = 1;
   last_device_to_server_stream_id_received_ = 0;
   last_server_to_device_stream_id_received_ = 0;
 
   heartbeat_manager_.Stop();
@@ skipping 516 matching lines @@
         reinterpret_cast<mcs_proto::DataMessageStanza*>(packet->protobuf.get());
     CollapseKey collapse_key(*data_message);
     if (collapse_key.IsValid())
       collapse_key_map_.erase(collapse_key);
   }
 
   return packet;
 }
 
 } // namespace gcm