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 90 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);
+      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,
@@ skipping 57 matching lines @@
     dequeueEvent(event);
     setResult(nullptr);
     onError(DOMException::create(AbortError, "The connection was closed."));
     return DispatchEventResult::CanceledBeforeDispatch;
   }
 
   return IDBRequest::dispatchEventInternal(event);
 }
 
 }  // namespace blink