Eliminate implicit conversion from scoped_refptr<T> to T*

ipc/ipc_sync_channel.h

 // Copyright (c) 2011 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 IPC_IPC_SYNC_CHANNEL_H_
 #define IPC_IPC_SYNC_CHANNEL_H_
 #pragma once
 
 #include <string>
 #include <deque>
@@ skipping 125 matching lines @@
     // returned. Otherwise the function returns false.
     bool TryToUnblockListener(const Message* msg);
 
     // Called on the IPC thread when a sync send that runs a nested message loop
     // times out.
     void OnSendTimeout(int message_id);
 
     base::WaitableEvent* shutdown_event() { return shutdown_event_; }
 
     ReceivedSyncMsgQueue* received_sync_msgs() {
-      return received_sync_msgs_;
+      return received_sync_msgs_.get();
     }
 
     void set_restrict_dispatch(bool value) { restrict_dispatch_ = value; }
     bool restrict_dispatch() const { return restrict_dispatch_; }
 
    private:
     virtual ~SyncContext();
     // ChannelProxy methods that we override.
 
     // Called on the listener thread.
@@ skipping 46 matching lines @@
 
   // Used to signal events between the IPC and listener threads.
   base::WaitableEventWatcher dispatch_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncChannel);
 };
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_SYNC_CHANNEL_H_