Privatize StrongBinding lifetime management

device/serial/serial_connection.cc

 // 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.
 
 #include "device/serial/serial_connection.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "device/serial/buffer.h"
 #include "device/serial/data_sink_receiver.h"
 #include "device/serial/data_source_sender.h"
 #include "device/serial/serial_io_handler.h"
 
 namespace device {
 
 SerialConnection::SerialConnection(
     scoped_refptr<SerialIoHandler> io_handler,
     mojo::InterfaceRequest<serial::DataSink> sink,
     mojo::InterfaceRequest<serial::DataSource> source,
-    mojo::InterfacePtr<serial::DataSourceClient> source_client,
-    mojo::InterfaceRequest<serial::Connection> request)
-    : io_handler_(io_handler), binding_(this, std::move(request)) {
+    mojo::InterfacePtr<serial::DataSourceClient> source_client)
+    : io_handler_(io_handler) {
   receiver_ = new DataSinkReceiver(
       std::move(sink),
       base::Bind(&SerialConnection::OnSendPipeReady, base::Unretained(this)),
       base::Bind(&SerialConnection::OnSendCancelled, base::Unretained(this)),
       base::Bind(base::DoNothing));
   sender_ = new DataSourceSender(
       std::move(source), std::move(source_client),
       base::Bind(&SerialConnection::OnReceivePipeReady, base::Unretained(this)),
       base::Bind(base::DoNothing));
 }
@@ skipping 37 matching lines @@
 void SerialConnection::OnSendPipeReady(std::unique_ptr<ReadOnlyBuffer> buffer) {
   io_handler_->Write(std::move(buffer));
 }
 
 void SerialConnection::OnReceivePipeReady(
     std::unique_ptr<WritableBuffer> buffer) {
   io_handler_->Read(std::move(buffer));
 }
 
 }  // namespace device