Cleanup: Merge device/udev_linux/udev.{cc,h} into device/udev_linux/scoped_udev.h.

device/serial/serial_device_enumerator_linux.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_DEVICE_ENUMERATOR_LINUX_H_
 #define DEVICE_SERIAL_SERIAL_DEVICE_ENUMERATOR_LINUX_H_
 
-#include <libudev.h>
-
-#include "base/memory/scoped_ptr.h"
 #include "device/serial/serial_device_enumerator.h"
+#include "device/udev_linux/scoped_udev.h"
 
 namespace device {
 
 // Discovers and enumerates serial devices available to the host.
 class SerialDeviceEnumeratorLinux : public SerialDeviceEnumerator {
  public:
   SerialDeviceEnumeratorLinux();
   virtual ~SerialDeviceEnumeratorLinux();
 
   // Implementation for SerialDeviceEnumerator.
   virtual mojo::Array<serial::DeviceInfoPtr> GetDevices() override;
 
  private:
-  struct UdevDeleter {
-    void operator()(udev* handle);
-  };
-
-  scoped_ptr<udev, UdevDeleter> udev_;
+  ScopedUdevPtr udev_;
 
   DISALLOW_COPY_AND_ASSIGN(SerialDeviceEnumeratorLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_SERIAL_SERIAL_DEVICE_ENUMERATOR_LINUX_H_