Remove raw base::DictionaryValue::SetWithoutPathExpansion in //chrome

chrome/browser/ui/app_list/arc/arc_app_list_prefs.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/app_list/arc/arc_app_list_prefs.h"
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/files/file_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/task_scheduler/post_task.h"
+#include "base/values.h"
 #include "chrome/browser/chromeos/arc/arc_session_manager.h"
 #include "chrome/browser/chromeos/arc/arc_util.h"
 #include "chrome/browser/chromeos/arc/policy/arc_policy_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs_factory.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
 #include "chrome/browser/ui/app_list/arc/arc_package_syncable_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 38 matching lines @@
                       const std::string& path)
       : DictionaryPrefUpdate(service, path), id_(id) {}
 
   ~ScopedArcPrefUpdate() override {}
 
   // DictionaryPrefUpdate overrides:
   base::DictionaryValue* Get() override {
     base::DictionaryValue* dict = DictionaryPrefUpdate::Get();
     base::DictionaryValue* dict_item = nullptr;
     if (!dict->GetDictionaryWithoutPathExpansion(id_, &dict_item)) {
-      dict_item = new base::DictionaryValue();
-      dict->SetWithoutPathExpansion(id_, dict_item);
+      dict_item = dict->SetDictionaryWithoutPathExpansion(
+          id_, base::MakeUnique<base::DictionaryValue>());
     }
     return dict_item;
   }
 
  private:
   const std::string id_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedArcPrefUpdate);
 };
 
@@ skipping 1349 matching lines @@
                                           int64_t last_backup_android_id,
                                           int64_t last_backup_time,
                                           bool should_sync,
                                           bool system)
     : package_name(package_name),
       package_version(package_version),
       last_backup_android_id(last_backup_android_id),
       last_backup_time(last_backup_time),
       should_sync(should_sync),
       system(system) {}