Add a partial Mojo serial connection interface and implementation.

device/serial/serial_service_impl.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 DEVICE_SERIAL_SERIAL_SERVICE_IMPL_H_
 #define DEVICE_SERIAL_SERIAL_SERVICE_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "device/serial/serial.mojom.h"
+#include "device/serial/serial_connection_factory.h"
 #include "device/serial/serial_device_enumerator.h"
 #include "mojo/public/cpp/bindings/interface_impl.h"
 
 namespace device {
 
 class SerialServiceImpl : public mojo::InterfaceImpl<serial::SerialService> {
  public:
-  SerialServiceImpl();
+  explicit SerialServiceImpl(
+      scoped_refptr<SerialConnectionFactory> connection_factory);
+  SerialServiceImpl(scoped_refptr<SerialConnectionFactory> connection_factory,
+                    scoped_ptr<SerialDeviceEnumerator> device_enumerator);
   virtual ~SerialServiceImpl();
 
-  static void Create(mojo::InterfaceRequest<serial::SerialService> request);
+  static void Create(scoped_refptr<base::MessageLoopProxy> io_message_loop,
+                     mojo::InterfaceRequest<serial::SerialService> request);
   static void CreateOnMessageLoop(
       scoped_refptr<base::MessageLoopProxy> message_loop,
+      scoped_refptr<base::MessageLoopProxy> io_message_loop,
       mojo::InterfaceRequest<serial::SerialService> request);
 
   // mojo::InterfaceImpl<SerialService> overrides.
   virtual void GetDevices(const mojo::Callback<
       void(mojo::Array<serial::DeviceInfoPtr>)>& callback) OVERRIDE;
+  virtual void Connect(
+      const mojo::String& path,
+      serial::ConnectionOptionsPtr options,
+      mojo::InterfaceRequest<serial::Connection> connection_request) OVERRIDE;
   virtual void OnConnectionError() OVERRIDE;
 
  private:
+  SerialDeviceEnumerator* GetDeviceEnumerator();
+  bool IsValidPath(const mojo::String& path);
+  void OnConnected(
+      const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback,
+      serial::ConnectionInfoPtr result);
+
   scoped_ptr<SerialDeviceEnumerator> device_enumerator_;
+  scoped_refptr<SerialConnectionFactory> connection_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(SerialServiceImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_SERIAL_SERIAL_SERVICE_IMPL_H_