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

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

 // 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.
 
 #include "chrome/browser/ui/webui/print_preview/print_preview_distiller.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 
@@ skipping 24 matching lines @@
 using content::OpenURLParams;
 using content::RenderViewHost;
 using content::SessionStorageNamespace;
 using content::WebContents;
 
 class PrintPreviewDistiller::WebContentsDelegateImpl
     : public content::WebContentsDelegate,
       public content::NotificationObserver,
       public content::WebContentsObserver {
  public:
-  explicit WebContentsDelegateImpl(WebContents* web_contents,
-                                   scoped_ptr<base::DictionaryValue> settings,
-                                   const base::Closure on_failed_callback)
+  explicit WebContentsDelegateImpl(
+      WebContents* web_contents,
+      std::unique_ptr<base::DictionaryValue> settings,
+      const base::Closure on_failed_callback)
       : content::WebContentsObserver(web_contents),
         settings_(std::move(settings)),
         on_failed_callback_(on_failed_callback) {
     web_contents->SetDelegate(this);
 
     // Close ourselves when the application is shutting down.
     notification_registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
                                 content::NotificationService::AllSources());
 
     // Register to inform new RenderViews that we're rendering.
@@ skipping 137 matching lines @@
         break;
       }
 
       default:
         NOTREACHED() << "Unexpected notification sent.";
         break;
     }
   }
 
  private:
-  scoped_ptr<base::DictionaryValue> settings_;
+  std::unique_ptr<base::DictionaryValue> settings_;
   content::NotificationRegistrar notification_registrar_;
 
   // The callback called when the preview failed.
   base::Closure on_failed_callback_;
 };
 
 const base::Feature PrintPreviewDistiller::kFeature = {
     "PrintPreviewDistiller", base::FEATURE_ENABLED_BY_DEFAULT,
 };
 
 bool PrintPreviewDistiller::IsEnabled() {
   return base::FeatureList::IsEnabled(kFeature);
 }
 
 PrintPreviewDistiller::PrintPreviewDistiller(
     WebContents* source_web_contents,
     const base::Closure on_failed_callback,
-    scoped_ptr<base::DictionaryValue> settings) {
+    std::unique_ptr<base::DictionaryValue> settings) {
   content::SessionStorageNamespace* session_storage_namespace =
       source_web_contents->GetController().GetDefaultSessionStorageNamespace();
   CreateDestinationWebContents(session_storage_namespace, source_web_contents,
                                std::move(settings), on_failed_callback);
 
   DCHECK(web_contents_);
   ::DistillAndView(source_web_contents, web_contents_.get());
 }
 
 void PrintPreviewDistiller::CreateDestinationWebContents(
     SessionStorageNamespace* session_storage_namespace,
     WebContents* source_web_contents,
-    scoped_ptr<base::DictionaryValue> settings,
+    std::unique_ptr<base::DictionaryValue> settings,
     const base::Closure on_failed_callback) {
   DCHECK(!web_contents_);
 
   web_contents_.reset(
       CreateWebContents(session_storage_namespace, source_web_contents));
 
   printing::PrintPreviewMessageHandler::CreateForWebContents(
       web_contents_.get());
 
   web_contents_delegate_.reset(new WebContentsDelegateImpl(
@@ skipping 27 matching lines @@
     WebContents* source_web_contents) {
   // TODO(ajwong): Remove the temporary map once prerendering is aware of
   // multiple session storage namespaces per tab.
   content::SessionStorageNamespaceMap session_storage_namespace_map;
   Profile* profile =
       Profile::FromBrowserContext(source_web_contents->GetBrowserContext());
   session_storage_namespace_map[std::string()] = session_storage_namespace;
   return WebContents::CreateWithSessionStorage(
       WebContents::CreateParams(profile), session_storage_namespace_map);
 }