Rename SocketReaderBase to SocketReader and move it to remoting/base

remoting/base/socket_reader.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 REMOTING_BASE_SOCKET_READER_H_
+#define REMOTING_BASE_SOCKET_READER_H_
+
+#include "base/memory/ref_counted.h"
+#include "net/base/completion_callback.h"
+#include "base/memory/weak_ptr.h"
+
+namespace net {
+class IOBuffer;
+class Socket;
+}  // namespace net
+
+namespace remoting {
+
+// SocketReader reads data from a socket and then calls a callback for each
+// completed read. Note that if this object is destroyed without destroying the
+// socket, it will leave a pending read request for the socket, so the calling
+// code should never be creating more than one reader for the same socket.

[Sergey Ulanov, 2012/11/10 01:18:44]

Updated this comment to make it clearer.

+class SocketReader {
+ public:
+  // Callback that is called for each finished read. |data| may be set to NULL
+  // in case of an error (result < 0).
+  typedef base::Callback<void(scoped_refptr<net::IOBuffer> data,
+                              int result)> ReadResultCallback;
+
+  SocketReader();
+  ~SocketReader();
+
+  // Starts reading from |socket|. |read_result_callback| is called for each
+  // completed read. Reading stops on the first error. Must not be called more
+  // than once.
+  void Init(net::Socket* socket, ReadResultCallback read_result_callback);
+
+ private:
+  void DoRead();
+  void OnRead(int result);
+  void HandleReadResult(int result);
+  void CallCallback(scoped_refptr<net::IOBuffer> data, int result);
+
+  net::Socket* socket_;
+  ReadResultCallback read_result_callback_;
+  scoped_refptr<net::IOBuffer> read_buffer_;
+
+  base::WeakPtrFactory<SocketReader> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(SocketReader);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_BASE_SOCKET_READER_H_