[IndexedDB] Refactoring to remove ref ptrs and host transaction ids.

content/browser/indexed_db/indexed_db_class_factory.cc

Index: content/browser/indexed_db/indexed_db_class_factory.cc
diff --git a/content/browser/indexed_db/indexed_db_class_factory.cc b/content/browser/indexed_db/indexed_db_class_factory.cc
index b1a7fce34e941f5f8c626c172b255073cfa5f14f..8941edb1b0dab9ba652e49dc5a7e8ec0bcdb7cf8 100644
--- a/content/browser/indexed_db/indexed_db_class_factory.cc
+++ b/content/browser/indexed_db/indexed_db_class_factory.cc
@@ -36,19 +36,6 @@ scoped_refptr<IndexedDBDatabase> IndexedDBClassFactory::CreateIndexedDBDatabase(
   return new IndexedDBDatabase(name, backing_store, factory, unique_identifier);
 }
 
-IndexedDBTransaction* IndexedDBClassFactory::CreateIndexedDBTransaction(
-    int64_t id,
-    base::WeakPtr<IndexedDBConnection> connection,
-    const std::set<int64_t>& scope,
-    blink::WebIDBTransactionMode mode,
-    IndexedDBBackingStore::Transaction* backing_store_transaction) {
-  // The transaction adds itself to |connection|'s database's transaction
-  // coordinator, which owns the object.
-  IndexedDBTransaction* transaction = new IndexedDBTransaction(
-      id, std::move(connection), scope, mode, backing_store_transaction);
-  return transaction;
-}
-
 scoped_refptr<LevelDBTransaction>
 IndexedDBClassFactory::CreateLevelDBTransaction(LevelDBDatabase* db) {
   return new LevelDBTransaction(db);