IndexedDB: Make sure indexing completes if object store is deleted

Source/modules/indexeddb/IDBObjectStore.cpp

 /*
  * 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 315 matching lines @@
         EventTarget* target = event->target();
         IDBRequest* request = static_cast<IDBRequest*>(target);
 
         RefPtr<IDBAny> cursorAny = request->resultAsAny();
         RefPtr<IDBCursorWithValue> cursor;
         if (cursorAny->type() == IDBAny::IDBCursorWithValueType)
             cursor = cursorAny->idbCursorWithValue();
 
         Vector<int64_t> indexIds;
         indexIds.append(m_indexMetadata.id);
-        if (cursor) {
+        if (cursor && !cursor->isDeleted()) {
             cursor->continueFunction(static_cast<IDBKey*>(0), static_cast<IDBKey*>(0), ASSERT_NO_EXCEPTION);
 
             RefPtr<IDBKey> primaryKey = cursor->idbPrimaryKey();
             ScriptValue value = cursor->value(context);
 
             IDBObjectStore::IndexKeys indexKeys;
             generateIndexKeysForValue(request->requestState(), m_indexMetadata, value, &indexKeys);
 
             Vector<IDBObjectStore::IndexKeys> indexKeysList;
             indexKeysList.append(indexKeys);
@@ skipping 271 matching lines @@
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 WebIDBDatabase* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace WebCore