Remove ref-counting from StreamListenSocket

net/socket/unix_domain_socket_posix.h

 // 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.
 
 #ifndef NET_SOCKET_UNIX_DOMAIN_SOCKET_POSIX_H_
 #define NET_SOCKET_UNIX_DOMAIN_SOCKET_POSIX_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
 #include "build/build_config.h"
 #include "net/base/net_export.h"
 #include "net/socket/stream_listen_socket.h"
 
 #if defined(OS_ANDROID) || defined(OS_LINUX)
 // Feature only supported on Linux currently. This lets the Unix Domain Socket
 // not be backed by the file system.
 #define SOCKET_ABSTRACT_NAMESPACE_SUPPORTED
 #endif
 
 namespace net {
 
 // Unix Domain Socket Implementation. Supports abstract namespaces on Linux.
 class NET_EXPORT UnixDomainSocket : public StreamListenSocket {
  public:
+  virtual ~UnixDomainSocket();
+
   // Callback that returns whether the already connected client, identified by
   // its process |user_id| and |group_id|, is allowed to keep the connection
   // open. Note that the socket is closed immediately in case the callback
   // returns false.
   typedef base::Callback<bool (uid_t user_id, gid_t group_id)> AuthCallback;
 
   // Returns an authentication callback that always grants access for
   // convenience in case you don't want to use authentication.
   static AuthCallback NoAuthentication();
 
   // Note that the returned UnixDomainSocket instance does not take ownership of
   // |del|.
-  static scoped_refptr<UnixDomainSocket> CreateAndListen(
+  static scoped_ptr<UnixDomainSocket> CreateAndListen(
       const std::string& path,
       StreamListenSocket::Delegate* del,
       const AuthCallback& auth_callback);
 
 #if defined(SOCKET_ABSTRACT_NAMESPACE_SUPPORTED)
   // Same as above except that the created socket uses the abstract namespace
   // which is a Linux-only feature. If |fallback_path| is not empty,
   // make the second attempt with the provided fallback name.
-  static scoped_refptr<UnixDomainSocket> CreateAndListenWithAbstractNamespace(
+  static scoped_ptr<UnixDomainSocket> CreateAndListenWithAbstractNamespace(
       const std::string& path,
       const std::string& fallback_path,
       StreamListenSocket::Delegate* del,
       const AuthCallback& auth_callback);
 #endif
 
  private:
   UnixDomainSocket(SocketDescriptor s,
                    StreamListenSocket::Delegate* del,
                    const AuthCallback& auth_callback);
-  virtual ~UnixDomainSocket();
 
-  static UnixDomainSocket* CreateAndListenInternal(
+  static scoped_ptr<UnixDomainSocket> CreateAndListenInternal(
       const std::string& path,
       const std::string& fallback_path,
       StreamListenSocket::Delegate* del,
       const AuthCallback& auth_callback,
       bool use_abstract_namespace);
 
   static SocketDescriptor CreateAndBind(const std::string& path,
                                         bool use_abstract_namespace);
 
   // StreamListenSocket:
   virtual void Accept() OVERRIDE;
 
   AuthCallback auth_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(UnixDomainSocket);
 };
 
 // Factory that can be used to instantiate UnixDomainSocket.
 class NET_EXPORT UnixDomainSocketFactory : public StreamListenSocketFactory {
  public:
   // Note that this class does not take ownership of the provided delegate.
   UnixDomainSocketFactory(const std::string& path,
                           const UnixDomainSocket::AuthCallback& auth_callback);
   virtual ~UnixDomainSocketFactory();
 
   // StreamListenSocketFactory:
-  virtual scoped_refptr<StreamListenSocket> CreateAndListen(
+  virtual scoped_ptr<StreamListenSocket> CreateAndListen(
       StreamListenSocket::Delegate* delegate) const OVERRIDE;
 
  protected:
   const std::string path_;
   const UnixDomainSocket::AuthCallback auth_callback_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UnixDomainSocketFactory);
 };
 
 #if defined(SOCKET_ABSTRACT_NAMESPACE_SUPPORTED)
 // Use this factory to instantiate UnixDomainSocket using the abstract
 // namespace feature (only supported on Linux).
 class NET_EXPORT UnixDomainSocketWithAbstractNamespaceFactory
     : public UnixDomainSocketFactory {
  public:
   UnixDomainSocketWithAbstractNamespaceFactory(
       const std::string& path,
       const std::string& fallback_path,
       const UnixDomainSocket::AuthCallback& auth_callback);
   virtual ~UnixDomainSocketWithAbstractNamespaceFactory();
 
   // UnixDomainSocketFactory:
-  virtual scoped_refptr<StreamListenSocket> CreateAndListen(
+  virtual scoped_ptr<StreamListenSocket> CreateAndListen(
       StreamListenSocket::Delegate* delegate) const OVERRIDE;
 
  private:
   std::string fallback_path_;
 
   DISALLOW_COPY_AND_ASSIGN(UnixDomainSocketWithAbstractNamespaceFactory);
 };
 #endif
 
 }  // namespace net
 
 #endif  // NET_SOCKET_UNIX_DOMAIN_SOCKET_POSIX_H_