base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

content/browser/indexed_db/indexed_db_context_impl.cc

 // Copyright (c) 2012 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 "content/browser/indexed_db/indexed_db_context_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 248 matching lines @@
 
           std::unique_ptr<base::ListValue> scope(new base::ListValue());
           for (const auto& id : transaction->scope()) {
             IndexedDBDatabaseMetadata::ObjectStoreMap::const_iterator it =
                 db->metadata().object_stores.find(id);
             if (it != db->metadata().object_stores.end())
               scope->AppendString(it->second.name);
           }
 
           transaction_info->Set("scope", scope.release());
-          transaction_list->Append(transaction_info.release());
+          transaction_list->Append(std::move(transaction_info));
         }
         db_info->Set("transactions", transaction_list.release());
 
-        database_list->Append(db_info.release());
+        database_list->Append(std::move(db_info));
       }
       info->Set("databases", database_list.release());
     }
 
-    list->Append(info.release());
+    list->Append(std::move(info));
   }
   return list.release();
 }
 
 int IndexedDBContextImpl::GetOriginBlobFileCount(const Origin& origin) {
   DCHECK(TaskRunner()->RunsTasksOnCurrentThread());
   int count = 0;
   base::FileEnumerator file_enumerator(GetBlobStorePath(origin), true,
                                        base::FileEnumerator::FILES);
   for (base::FilePath file_path = file_enumerator.Next(); !file_path.empty();
@@ skipping 280 matching lines @@
 void IndexedDBContextImpl::ResetCaches() {
   origin_set_.reset();
   origin_size_map_.clear();
 }
 
 base::SequencedTaskRunner* IndexedDBContextImpl::TaskRunner() const {
   return task_runner_.get();
 }
 
 }  // namespace content