[GCM] Fix memory leaks

google_apis/gcm/engine/mcs_client.h

 // 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.
 
 #ifndef GOOGLE_APIS_GCM_ENGINE_MCS_CLIENT_H_
 #define GOOGLE_APIS_GCM_ENGINE_MCS_CLIENT_H_
 
 #include <deque>
 #include <map>
 #include <string>
@@ skipping 80 matching lines @@
   // passing the id/token information back via |initialization_callback| along
   // with a |success == true| result. If no GCM information is present (and
   // this is therefore a fresh client), a clean GCM store will be created and
   // values of 0 will be returned via |initialization_callback| with
   // |success == true|.
   /// If an error loading the GCM store is encountered,
   // |initialization_callback| will be invoked with |success == false|.
   void Initialize(const ErrorCallback& initialization_callback,
                   const OnMessageReceivedCallback& message_received_callback,
                   const OnMessageSentCallback& message_sent_callback,
-                  const GCMStore::LoadResult& load_result);
+                  scoped_ptr<GCMStore::LoadResult> load_result);
 
   // Logs the client into the server. Client must be initialized.
   // |android_id| and |security_token| are optional if this is not a new
   // client, else they must be non-zero.
   // Successful login will result in |message_received_callback| being invoked
   // with a valid LoginResponse.
   // Login failure (typically invalid id/token) will shut down the client, and
   // |initialization_callback| to be invoked with |success = false|.
   void Login(uint64 android_id, uint64 security_token);
 
@@ skipping 134 matching lines @@
   HeartbeatManager heartbeat_manager_;
 
   base::WeakPtrFactory<MCSClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MCSClient);
 };
 
 } // namespace gcm
 
 #endif  // GOOGLE_APIS_GCM_ENGINE_MCS_CLIENT_H_