Add a partial Mojo serial connection interface and implementation.

device/serial/serial_connection_factory.h

Index: device/serial/serial_connection_factory.h
diff --git a/device/serial/serial_connection_factory.h b/device/serial/serial_connection_factory.h
new file mode 100644
index 0000000000000000000000000000000000000000..99f17ee167835909a1571f5dcda6076ba49c1797
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+++ b/device/serial/serial_connection_factory.h
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+// 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_CONNECTION_FACTORY_H_
+#define DEVICE_SERIAL_SERIAL_CONNECTION_FACTORY_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/message_loop/message_loop_proxy.h"
+#include "device/serial/serial.mojom.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+
+namespace device {
+
+class SerialIoHandler;
+
+class SerialConnectionFactory
+    : public base::RefCountedThreadSafe<SerialConnectionFactory> {
+ public:
+  typedef base::Callback<scoped_refptr<SerialIoHandler>()> IoHandlerFactory;
+
+  SerialConnectionFactory(
+      const IoHandlerFactory& io_handler_factory,
+      scoped_refptr<base::MessageLoopProxy> connect_message_loop);
+
+  void CreateConnection(
+      const std::string& path,
+      serial::ConnectionOptionsPtr options,
+      mojo::InterfaceRequest<serial::Connection> connection_request);
+
+ private:
+  friend class base::RefCountedThreadSafe<SerialConnectionFactory>;
+  class ConnectTask;
+
+  virtual ~SerialConnectionFactory();
+
+  const IoHandlerFactory io_handler_factory_;
+  scoped_refptr<base::MessageLoopProxy> connect_message_loop_;
+
+  DISALLOW_COPY_AND_ASSIGN(SerialConnectionFactory);
+};
+
+}  // namespace device
+
+#endif  // DEVICE_SERIAL_SERIAL_CONNECTION_FACTORY_H_