Align IndexedDB metadata rollback on transaction abort to spec.

third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h

 /*
  * Copyright (C) 2010 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 46 matching lines @@
     : public EventTargetWithInlineData
     , public ActiveScriptWrappable
     , public ActiveDOMObject {
     USING_GARBAGE_COLLECTED_MIXIN(IDBDatabase);
     DEFINE_WRAPPERTYPEINFO();
 public:
     static IDBDatabase* create(ExecutionContext*, std::unique_ptr<WebIDBDatabase>, IDBDatabaseCallbacks*);
     ~IDBDatabase() override;
     DECLARE_VIRTUAL_TRACE();
 
-    void setMetadata(const IDBDatabaseMetadata& metadata) { m_metadata = metadata; }
-    void indexCreated(int64_t objectStoreId, const IDBIndexMetadata&);
-    void indexDeleted(int64_t objectStoreId, int64_t indexId);
-    void indexRenamed(int64_t objectStoreId, int64_t indexId, const String& newName);
+    // Overwrites the database metadata, including object store and index metadata.
+    void setMetadata(const IDBDatabaseMetadata&);
+    // Overwrites the database's own metadata, but does not change object store and index metadata.
+    void setDatabaseMetadata(const IDBDatabaseMetadata&);
     void transactionCreated(IDBTransaction*);
     void transactionFinished(const IDBTransaction*);
     const String& getObjectStoreName(int64_t objectStoreId) const;
 
     // Implement the IDL
     const String& name() const { return m_metadata.name; }
     unsigned long long version() const { return m_metadata.version; }
     DOMStringList* objectStoreNames() const;
 
     IDBObjectStore* createObjectStore(const String& name, const IDBObjectStoreParameters& options, ExceptionState& exceptionState) { return createObjectStore(name, IDBKeyPath(options.keyPath()), options.autoIncrement(), exceptionState); }
@@ skipping 24 matching lines @@
     bool isClosePending() const { return m_closePending; }
     void forceClose();
     const IDBDatabaseMetadata& metadata() const { return m_metadata; }
     void enqueueEvent(Event*);
 
     int64_t findObjectStoreId(const String& name) const;
     bool containsObjectStore(const String& name) const
     {
         return findObjectStoreId(name) != IDBObjectStoreMetadata::InvalidId;
     }
-    void objectStoreRenamed(int64_t storeId, const String& newName);
+    void renameObjectStore(int64_t storeId, const String& newName);
+    void revertObjectStoreCreation(int64_t objectStoreId);
+    void revertObjectStoreMetadata(RefPtr<IDBObjectStoreMetadata> oldMetadata);
 
     // Will return nullptr if this database is stopped.
     WebIDBDatabase* backend() const { return m_backend.get(); }
 
     static int64_t nextTransactionId();
 
     static const char indexDeletedErrorMessage[];
     static const char indexNameTakenErrorMessage[];
     static const char isKeyCursorErrorMessage[];
     static const char noKeyOrKeyRangeErrorMessage[];
@@ skipping 34 matching lines @@
     // Keep track of the versionchange events waiting to be fired on this
     // database so that we can cancel them if the database closes.
     HeapVector<Member<Event>> m_enqueuedEvents;
 
     Member<IDBDatabaseCallbacks> m_databaseCallbacks;
 };
 
 } // namespace blink
 
 #endif // IDBDatabase_h