Convert IPC::ChannelMojo initialization to use new mojo::embedder::CreateChannelOnIOThread().

ipc/mojo/ipc_channel_mojo.h

 // Copyright 2014 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_MOJO_H_
 #define IPC_IPC_CHANNEL_MOJO_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 88 matching lines @@
   typedef internal::MessagePipeReader::DelayedDeleter ReaderDeleter;
 
   class ControlReader;
   class ServerControlReader;
   class ClientControlReader;
   class MessageReader;
 
   ChannelMojo(scoped_ptr<Channel> bootstrap, Mode mode, Listener* listener,
               scoped_refptr<base::TaskRunner> io_thread_task_runner);
 
-  void InitOnIOThread(mojo::ScopedMessagePipeHandle control_pipe);
-  scoped_ptr<ControlReader> CreateControlReader(
-      mojo::ScopedMessagePipeHandle pipe);
-  void DidCreateChannel(mojo::embedder::ChannelInfo*);
+  void InitOnIOThread();
 
   base::WeakPtrFactory<ChannelMojo> weak_factory_;
   scoped_ptr<Channel> bootstrap_;
   Mode mode_;
   Listener* listener_;
   base::ProcessId peer_pid_;
   scoped_ptr<mojo::embedder::ChannelInfo,
              ChannelInfoDeleter> channel_info_;
 
   scoped_ptr<ControlReader, ReaderDeleter> control_reader_;
   scoped_ptr<MessageReader, ReaderDeleter> message_reader_;
   ScopedVector<Message> pending_messages_;
 
   DISALLOW_COPY_AND_ASSIGN(ChannelMojo);
 };
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_MOJO_H_