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

chrome/browser/ui/views/download/download_danger_prompt_views.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/download/download_danger_prompt.h"
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/download/download_stats.h"
 #include "chrome/browser/extensions/api/experience_sampling_private/experience_sampling.h"
 #include "chrome/grit/chromium_strings.h"
@@ skipping 56 matching lines @@
   base::string16 GetCancelButtonTitle() const;
   // The message lead is separated from the main text and is bolded.
   base::string16 GetMessageLead() const;
   base::string16 GetMessageBody() const;
   void RunDone(Action action);
 
   content::DownloadItem* download_;
   bool show_context_;
   OnDone done_;
 
-  scoped_ptr<ExperienceSamplingEvent> sampling_event_;
+  std::unique_ptr<ExperienceSamplingEvent> sampling_event_;
 
   views::View* contents_view_;
 };
 
 DownloadDangerPromptViews::DownloadDangerPromptViews(
     content::DownloadItem* item,
     bool show_context,
     const OnDone& done)
     : download_(item),
       show_context_(show_context),
@@ skipping 261 matching lines @@
     content::DownloadItem* item,
     content::WebContents* web_contents,
     bool show_context,
     const OnDone& done) {
   DownloadDangerPromptViews* download_danger_prompt =
       new DownloadDangerPromptViews(item, show_context, done);
   constrained_window::ShowWebModalDialogViews(download_danger_prompt,
                                               web_contents);
   return download_danger_prompt;
 }