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

chrome/browser/ui/app_list/app_list_syncable_service.cc

 // 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.
 
 #include "chrome/browser/ui/app_list/app_list_syncable_service.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 167 matching lines @@
 }
 
 void UpdateSyncItemInLocalStorage(
     Profile* profile,
     const AppListSyncableService::SyncItem* sync_item) {
   DictionaryPrefUpdate pref_update(profile->GetPrefs(),
                                    prefs::kAppListLocalState);
   base::DictionaryValue* dict_item = nullptr;
   if (!pref_update->GetDictionaryWithoutPathExpansion(sync_item->item_id,
       &dict_item)) {
-    dict_item = new base::DictionaryValue();
-    pref_update->SetWithoutPathExpansion(sync_item->item_id, dict_item);
+    pref_update->SetWithoutPathExpansion(
+        sync_item->item_id, base::MakeUnique<base::DictionaryValue>());
+    pref_update->GetDictionaryWithoutPathExpansion(sync_item->item_id,
+                                                   &dict_item);
   }
 
   dict_item->SetString(kNameKey, sync_item->item_name);
   dict_item->SetString(kParentIdKey, sync_item->parent_id);
   dict_item->SetString(kPositionKey,sync_item->item_ordinal.IsValid() ?
       sync_item->item_ordinal.ToInternalValue() : std::string());
   dict_item->SetString(kPinPositionKey, sync_item->item_pin_ordinal.IsValid() ?
       sync_item->item_pin_ordinal.ToInternalValue() : std::string());
   dict_item->SetInteger(kTypeKey, static_cast<int>(sync_item->item_type));
 }
@@ skipping 1031 matching lines @@
     res += " { " + item_name + " }";
     res += " [" + item_ordinal.ToDebugString() + "]";
     if (!parent_id.empty())
       res += " <" + parent_id.substr(0, 8) + ">";
     res += " [" + item_pin_ordinal.ToDebugString() + "]";
   }
   return res;
 }
 
 }  // namespace app_list