Remove ref-counting from StreamListenSocket

chrome/browser/devtools/browser_list_tabcontents_provider.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/devtools/browser_list_tabcontents_provider.h"
 
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 121 matching lines @@
 
   if (!extension_host || extension_host->host_contents() != web_contents)
     return std::string();
 
   return extension_host->extension()->name();
 }
 
 #if defined(DEBUG_DEVTOOLS)
 static int g_last_tethering_port_ = 9333;
 
-scoped_refptr<net::StreamListenSocket>
+scoped_ptr<net::StreamListenSocket>
 BrowserListTabContentsProvider::CreateSocketForTethering(
     net::StreamListenSocket::Delegate* delegate,
     std::string* name) {
   if (g_last_tethering_port_ == 9444)
     g_last_tethering_port_ = 9333;
   int port = ++g_last_tethering_port_;
   *name = base::IntToString(port);
-  return net::TCPListenSocket::CreateAndListen("127.0.0.1", port, delegate);
+  return net::TCPListenSocket::CreateAndListen("127.0.0.1", port, delegate)
+      .PassAs<StreamListenSocket>();
 }
 #else
-scoped_refptr<net::StreamListenSocket>
+scoped_ptr<net::StreamListenSocket>
 BrowserListTabContentsProvider::CreateSocketForTethering(
     net::StreamListenSocket::Delegate* delegate,
     std::string* name) {
-  return NULL;
+  return scoped_ptr<net::StreamListenSocket>();
 }
 #endif  // defined(DEBUG_DEVTOOLS)