Align IndexedDB metadata rollback on transaction abort to spec.

third_party/WebKit/Source/modules/indexeddb/IDBOpenDBRequest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 82 matching lines @@
 
     DCHECK(m_databaseCallbacks);
 
     IDBDatabase* idbDatabase = IDBDatabase::create(getExecutionContext(), std::move(backend), m_databaseCallbacks.release());
     idbDatabase->setMetadata(metadata);
 
     if (oldVersion == IDBDatabaseMetadata::NoVersion) {
         // This database hasn't had a version before.
         oldVersion = IDBDatabaseMetadata::DefaultVersion;
     }
-    IDBDatabaseMetadata oldMetadata(metadata);
-    oldMetadata.version = oldVersion;
+    IDBDatabaseMetadata oldDatabaseMetadata(metadata.name, metadata.id, oldVersion, metadata.maxObjectStoreId);
 
-    m_transaction = IDBTransaction::createVersionChange(getScriptState(), m_transactionId, idbDatabase, this, oldMetadata);
+    m_transaction = IDBTransaction::createVersionChange(getScriptState(), m_transactionId, idbDatabase, this, oldDatabaseMetadata);
     setResult(IDBAny::create(idbDatabase));
 
     if (m_version == IDBDatabaseMetadata::NoVersion)
         m_version = 1;
     enqueueEvent(IDBVersionChangeEvent::create(EventTypeNames::upgradeneeded, oldVersion, m_version, dataLoss, dataLossMessage));
 }
 
 void IDBOpenDBRequest::onSuccess(std::unique_ptr<WebIDBDatabase> backend, const IDBDatabaseMetadata& metadata)
 {
     IDB_TRACE("IDBOpenDBRequest::onSuccess()");
@@ skipping 54 matching lines @@
         dequeueEvent(event);
         setResult(nullptr);
         onError(DOMException::create(AbortError, "The connection was closed."));
         return DispatchEventResult::CanceledBeforeDispatch;
     }
 
     return IDBRequest::dispatchEventInternal(event);
 }
 
 } // namespace blink