Replace scoped_ptr with std::unique_ptr in //ui

ui/app_list/search/history.h

 // 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.
 
 #ifndef UI_APP_LIST_SEARCH_HISTORY_H_
 #define UI_APP_LIST_SEARCH_HISTORY_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "ui/app_list/app_list_export.h"
 #include "ui/app_list/search/history_data_observer.h"
 #include "ui/app_list/search/history_types.h"
 
 namespace app_list {
 
 class HistoryData;
 class HistoryDataStore;
 
@@ skipping 14 matching lines @@
   ~History() override;
 
   // Returns true if the service is ready.
   bool IsReady() const;
 
   // Adds a launch event to the learning data.
   void AddLaunchEvent(const std::string& query, const std::string& result_id);
 
   // Gets all known search results that were launched using the given |query|
   // or using queries that |query| is a prefix of.
-  scoped_ptr<KnownResults> GetKnownResults(const std::string& query) const;
+  std::unique_ptr<KnownResults> GetKnownResults(const std::string& query) const;
 
  private:
   friend class app_list::test::SearchHistoryTest;
 
   // HistoryDataObserver overrides:
   void OnHistoryDataLoadedFromStore() override;
 
-  scoped_ptr<HistoryData> data_;
+  std::unique_ptr<HistoryData> data_;
   scoped_refptr<HistoryDataStore> store_;
   bool data_loaded_;
 
   DISALLOW_COPY_AND_ASSIGN(History);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_SEARCH_HISTORY_H_