Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/chromeos/first_run/first_run_handler.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/ui/webui/chromeos/first_run/first_run_handler.h"
 
 #include "base/bind.h"
 #include "base/values.h"
 #include "content/public/browser/web_ui.h"
 
@@ skipping 36 matching lines @@
                                          const StepPosition& position) {
   web_ui()->CallJavascriptFunction("cr.FirstRun.showStep",
                                    base::StringValue(name),
                                    *position.AsValue());
 }
 
 void FirstRunHandler::ShowStepPointingTo(const std::string& name,
                                          int x,
                                          int y,
                                          int offset) {
-  scoped_ptr<base::Value> null = base::Value::CreateNullValue();
+  std::unique_ptr<base::Value> null = base::Value::CreateNullValue();
   base::ListValue point_with_offset;
   point_with_offset.AppendInteger(x);
   point_with_offset.AppendInteger(y);
   point_with_offset.AppendInteger(offset);
   web_ui()->CallJavascriptFunction("cr.FirstRun.showStep",
                                    base::StringValue(name),
                                    *null,
                                    point_with_offset);
 }
 
@@ skipping 62 matching lines @@
     delegate()->OnStepHidden(step_name);
 }
 
 void FirstRunHandler::HandleFinalized(const base::ListValue* args) {
   is_finalizing_ = false;
   if (delegate())
     delegate()->OnActorFinalized();
 }
 
 }  // namespace chromeos