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

chrome/browser/ui/webui/print_preview/print_preview_distiller.h

 // Copyright 2015 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 CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_DISTILLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_DISTILLER_H_
 
+#include <memory>
+
 #include "base/callback.h"
 #include "base/feature_list.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/public/browser/web_contents_observer.h"
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 // This class controls the rendering of the distilled contents
 // generated by a source web contents
 class PrintPreviewDistiller {
  public:
   static const base::Feature kFeature;
 
   static bool IsEnabled();
 
   PrintPreviewDistiller(content::WebContents* source_web_contents,
                         base::Closure on_failed_callback,
-                        scoped_ptr<base::DictionaryValue> settings);
+                        std::unique_ptr<base::DictionaryValue> settings);
   ~PrintPreviewDistiller();
 
  private:
   class WebContentsDelegateImpl;
 
   // Create the web contents with a default
   // size. |session_storage_namespace| indicates the namespace that
   // the distiller content renderer's page should be part of.
   void CreateDestinationWebContents(
       content::SessionStorageNamespace* session_storage_namespace,
       content::WebContents* source_web_contents,
-      scoped_ptr<base::DictionaryValue> settings,
+      std::unique_ptr<base::DictionaryValue> settings,
       base::Closure on_failed_callback);
 
   content::WebContents* CreateWebContents(
       content::SessionStorageNamespace* session_storage_namespace,
       content::WebContents* source_web_contents);
 
   // The distilled rendered WebContents; may be null.
-  scoped_ptr<content::WebContents> web_contents_;
+  std::unique_ptr<content::WebContents> web_contents_;
 
-  scoped_ptr<WebContentsDelegateImpl> web_contents_delegate_;
+  std::unique_ptr<WebContentsDelegateImpl> web_contents_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewDistiller);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_DISTILLER_H_