Separate out IPC::Message::Sender and channel::Listener into a separate class.

ipc/ipc_channel_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 IPC_IPC_CHANNEL_POSIX_H_
 #define IPC_IPC_CHANNEL_POSIX_H_
 #pragma once
 
 #include "ipc/ipc_channel.h"
 
@@ skipping 36 matching lines @@
 #define IPC_USES_READWRITE 1
 #endif
 
 namespace IPC {
 
 class Channel::ChannelImpl : public internal::ChannelReader,
                              public MessageLoopForIO::Watcher {
  public:
   // Mirror methods of Channel, see ipc_channel.h for description.
   ChannelImpl(const IPC::ChannelHandle& channel_handle, Mode mode,
-              Listener* listener);
+              ChannelListener* listener);
   virtual ~ChannelImpl();
   bool Connect();
   void Close();
   bool Send(Message* message);
   int GetClientFileDescriptor();
   int TakeClientFileDescriptor();
   void CloseClientFileDescriptor();
   bool AcceptsConnections() const;
   bool HasAcceptedConnection() const;
   bool GetClientEuid(uid_t* client_euid) const;
@@ skipping 129 matching lines @@
 
 // The maximum length of the name of a pipe for MODE_NAMED_SERVER or
 // MODE_NAMED_CLIENT if you want to pass in your own socket.
 // The standard size on linux is 108, mac is 104. To maintain consistency
 // across platforms we standardize on the smaller value.
 static const size_t kMaxPipeNameLength = 104;
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_POSIX_H_