Re-write many calls to WrapUnique() with MakeUnique()

components/sync_sessions/revisit/typed_url_page_revisit_observer.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 "components/sync_sessions/revisit/typed_url_page_revisit_observer.h"
 
 #include "base/memory/ptr_util.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/sync_sessions/revisit/typed_url_page_revisit_task.h"
 #include "url/gurl.h"
 
 namespace sync_sessions {
 
 TypedUrlPageRevisitObserver::TypedUrlPageRevisitObserver(
     history::HistoryService* history)
     : history_(base::AsWeakPtr(history)) {}
 
 TypedUrlPageRevisitObserver::~TypedUrlPageRevisitObserver() {}
 
 void TypedUrlPageRevisitObserver::OnPageVisit(
     const GURL& url,
     const PageVisitObserver::TransitionType transition) {
   if (history_) {
     history_->ScheduleDBTask(
-        base::WrapUnique(new TypedUrlPageRevisitTask(url, transition)),
+        base::MakeUnique<TypedUrlPageRevisitTask>(url, transition),
         &task_tracker_);
   }
 }
 
 }  // namespace sync_sessions