Convert //dbus from scoped_ptr to std::unique_ptr

dbus/bus.h

 // Copyright (c) 2012 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 DBUS_BUS_H_
 #define DBUS_BUS_H_
 
 #include <dbus/dbus.h>
 #include <stdint.h>
 
@@ skipping 70 matching lines @@
 //
 //   dbus::Bus::Options options;
 //   // Set up the bus options here.
 //   ...
 //   dbus::Bus bus(options);
 //
 //   dbus::ObjectProxy* object_proxy =
 //       bus.GetObjectProxy(service_name, object_path);
 //
 //   dbus::MethodCall method_call(interface_name, method_name);
-//   scoped_ptr<dbus::Response> response(
+//   std::unique_ptr<dbus::Response> response(
 //       object_proxy.CallMethodAndBlock(&method_call, timeout_ms));
 //   if (response.get() != NULL) {  // Success.
 //     ...
 //   }
 //
 // Asynchronous method call:
 //
 //   void OnResponse(dbus::Response* response) {
 //     // response is NULL if the method call failed.
 //     if (!response)
@@ skipping 655 matching lines @@
   int num_pending_timeouts_;
 
   std::string address_;
 
   DISALLOW_COPY_AND_ASSIGN(Bus);
 };
 
 }  // namespace dbus
 
 #endif  // DBUS_BUS_H_