IndexedDB: WrapUnique(new T(args..)) -> MakeUnique<T>(args...)

content/browser/indexed_db/indexed_db_class_factory.h

Index: content/browser/indexed_db/indexed_db_class_factory.h
diff --git a/content/browser/indexed_db/indexed_db_class_factory.h b/content/browser/indexed_db/indexed_db_class_factory.h
index fb4f1d7eab2fdf28c3a409e6921aa38f93129431..60f069e6c9668e39fe29e5a52e7f77d991b89e16 100644
--- a/content/browser/indexed_db/indexed_db_class_factory.h
+++ b/content/browser/indexed_db/indexed_db_class_factory.h
@@ -11,6 +11,7 @@
 #include <set>
 
 #include "base/lazy_instance.h"
+#include "base/memory/ref_counted.h"
 #include "content/browser/indexed_db/indexed_db_backing_store.h"
 #include "content/browser/indexed_db/indexed_db_database.h"
 #include "content/common/content_export.h"
@@ -41,7 +42,7 @@ class CONTENT_EXPORT IndexedDBClassFactory {
 
   static void SetIndexedDBClassFactoryGetter(GetterCallback* cb);
 
-  virtual IndexedDBDatabase* CreateIndexedDBDatabase(
+  virtual scoped_refptr<IndexedDBDatabase> CreateIndexedDBDatabase(
       const base::string16& name,
       IndexedDBBackingStore* backing_store,
       IndexedDBFactory* factory,
@@ -54,9 +55,11 @@ class CONTENT_EXPORT IndexedDBClassFactory {
       blink::WebIDBTransactionMode mode,
       IndexedDBBackingStore::Transaction* backing_store_transaction);
 
-  virtual LevelDBIteratorImpl* CreateIteratorImpl(
+  virtual std::unique_ptr<LevelDBIteratorImpl> CreateIteratorImpl(
       std::unique_ptr<leveldb::Iterator> iterator);
-  virtual LevelDBTransaction* CreateLevelDBTransaction(LevelDBDatabase* db);
+
+  virtual scoped_refptr<LevelDBTransaction> CreateLevelDBTransaction(
+      LevelDBDatabase* db);
 
  protected:
   IndexedDBClassFactory() {}