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

chrome/browser/supervised_user/supervised_user_navigation_observer.cc

 // Copyright 2014 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/supervised_user/supervised_user_navigation_observer.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 63 matching lines @@
   Profile* profile =
       Profile::FromBrowserContext(web_contents_->GetBrowserContext());
   history::HistoryService* history_service =
       HistoryServiceFactory::GetForProfile(profile,
                                            ServiceAccessType::IMPLICIT_ACCESS);
 
   // |history_service| is null if saving history is disabled.
   if (history_service)
     history_service->AddPage(add_page_args);
 
-  scoped_ptr<NavigationEntry> entry(NavigationEntry::Create());
+  std::unique_ptr<NavigationEntry> entry(NavigationEntry::Create());
   entry->SetVirtualURL(url);
   entry->SetTimestamp(timestamp);
-  scoped_ptr<sessions::SerializedNavigationEntry> serialized_entry(
+  std::unique_ptr<sessions::SerializedNavigationEntry> serialized_entry(
       new sessions::SerializedNavigationEntry());
   *serialized_entry =
       sessions::ContentSerializedNavigationBuilder::FromNavigationEntry(
           blocked_navigations_.size(), *entry);
   blocked_navigations_.push_back(serialized_entry.release());
   supervised_user_service_->DidBlockNavigation(web_contents_);
 }
 
 void SupervisedUserNavigationObserver::OnURLFilterChanged() {
   url_filter_->GetFilteringBehaviorForURLWithAsyncChecks(
@@ skipping 10 matching lines @@
     bool uncertain) {
   // If the page has been changed in the meantime, we can exit.
   if (url != web_contents_->GetLastCommittedURL())
     return;
 
   if (behavior == SupervisedUserURLFilter::FilteringBehavior::BLOCK) {
     SupervisedUserInterstitial::Show(web_contents_, url, reason,
                                      base::Callback<void(bool)>());
   }
 }