Decouple Blimp transport output from BlimpConnections using MessagePort.

blimp/net/tcp_client_transport.h

 // Copyright 2015 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 BLIMP_NET_TCP_CLIENT_TRANSPORT_H_
 #define BLIMP_NET_TCP_CLIENT_TRANSPORT_H_
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "blimp/net/blimp_net_export.h"
 #include "blimp/net/blimp_transport.h"
 #include "net/base/address_list.h"
 #include "net/base/net_errors.h"
 
 namespace net {
 class ClientSocketFactory;
 class NetLog;
 class StreamSocket;
 }  // namespace net
 
 namespace blimp {
 
-class BlimpConnection;
+class MessagePort;
 
 // BlimpTransport which creates a TCP connection to one of the specified
 // |addresses| on each call to Connect().
 class BLIMP_NET_EXPORT TCPClientTransport : public BlimpTransport {
  public:
   TCPClientTransport(const net::IPEndPoint& ip_endpoint,
                      net::NetLog* net_log);
   ~TCPClientTransport() override;
 
   void SetClientSocketFactoryForTest(net::ClientSocketFactory* factory);
 
   // BlimpTransport implementation.
   void Connect(const net::CompletionCallback& callback) override;
-  std::unique_ptr<BlimpConnection> TakeConnection() override;
+  std::unique_ptr<MessagePort> TakeMessagePort() override;
   const char* GetName() const override;
 
  protected:
   // Called when the TCP connection completed.
   virtual void OnTCPConnectComplete(int result);
 
   // Called when the connection attempt completed or failed.
   // Resets |socket_| if |result| indicates a failure (!= net::OK).
   void OnConnectComplete(int result);
 
@@ skipping 11 matching lines @@
   net::CompletionCallback connect_callback_;
   net::ClientSocketFactory* socket_factory_ = nullptr;
   std::unique_ptr<net::StreamSocket> socket_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPClientTransport);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_NET_TCP_CLIENT_TRANSPORT_H_