Remove mojo::InterfaceImpl from device/serial.

device/serial/serial_connection_factory.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_factory.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "device/serial/serial_connection.h"
 #include "device/serial/serial_io_handler.h"
@@ skipping 107 matching lines @@
       path_, *options_,
       base::Bind(&SerialConnectionFactory::ConnectTask::OnConnected, this));
 }
 
 void SerialConnectionFactory::ConnectTask::OnConnected(bool success) {
   DCHECK(io_handler_.get());
   if (!success) {
     return;
   }
 
-  mojo::BindToRequest(
-      new SerialConnection(io_handler_, sink_.Pass(), source_.Pass(),
-                           source_client_.Pass()),
-      &connection_request_);
+  new SerialConnection(io_handler_, sink_.Pass(), source_.Pass(),
+                       source_client_.Pass(), connection_request_.Pass());
 }
 
 }  // namespace device