Convert device to std::unique_ptr

device/serial/serial_service_impl.h

Index: device/serial/serial_service_impl.h
diff --git a/device/serial/serial_service_impl.h b/device/serial/serial_service_impl.h
index e33661f4680ec46011e43cbd7f8f3fa284179832..ad8e48a59d19f6c0739f8d65b61e5f83d75a1a8c 100644
--- a/device/serial/serial_service_impl.h
+++ b/device/serial/serial_service_impl.h
@@ -5,8 +5,9 @@
 #ifndef DEVICE_SERIAL_SERIAL_SERVICE_IMPL_H_
 #define DEVICE_SERIAL_SERIAL_SERVICE_IMPL_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "device/serial/data_stream.mojom.h"
@@ -22,7 +23,7 @@ class SerialServiceImpl : public serial::SerialService {
   SerialServiceImpl(scoped_refptr<SerialConnectionFactory> connection_factory,
                     mojo::InterfaceRequest<serial::SerialService> request);
   SerialServiceImpl(scoped_refptr<SerialConnectionFactory> connection_factory,
-                    scoped_ptr<SerialDeviceEnumerator> device_enumerator,
+                    std::unique_ptr<SerialDeviceEnumerator> device_enumerator,
                     mojo::InterfaceRequest<serial::SerialService> request);
   ~SerialServiceImpl() override;
 
@@ -51,7 +52,7 @@ class SerialServiceImpl : public serial::SerialService {
   SerialDeviceEnumerator* GetDeviceEnumerator();
   bool IsValidPath(const mojo::String& path);
 
-  scoped_ptr<SerialDeviceEnumerator> device_enumerator_;
+  std::unique_ptr<SerialDeviceEnumerator> device_enumerator_;
   scoped_refptr<SerialConnectionFactory> connection_factory_;
   mojo::StrongBinding<serial::SerialService> binding_;