Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/web_resource/json_asynchronous_unpacker.cc

 // Copyright (c) 2012 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 "chrome/browser/web_resource/json_asynchronous_unpacker.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/web_resource/web_resource_service.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_utility_messages.h"
@@ skipping 88 matching lines @@
   // Release reference and set got_response_.
   void Cleanup() {
     DCHECK(!got_response_);
     got_response_ = true;
     Release();
   }
 
   void StartProcessOnIOThread(BrowserThread::ID thread_id,
                               const std::string& json_data) {
     UtilityProcessHost* host = UtilityProcessHost::Create(
-        this, BrowserThread::GetMessageLoopProxyForThread(thread_id));
+        this, BrowserThread::GetMessageLoopProxyForThread(thread_id).get());
     host->EnableZygote();
     // TODO(mrc): get proper file path when we start using web resources
     // that need to be unpacked.
     host->Send(new ChromeUtilityMsg_UnpackWebResource(json_data));
   }
 
   // True if we got a response from the utility process and have cleaned up
   // already.
   bool got_response_;
 };
 
 JSONAsynchronousUnpacker* JSONAsynchronousUnpacker::Create(
     JSONAsynchronousUnpackerDelegate* delegate) {
   return new JSONAsynchronousUnpackerImpl(delegate);
 }