[oilpan] Move IDBDatabase, IDBDatabaseCallbacks, IDBDatabaseBackendInterface and other related clas…

Source/modules/indexeddb/IDBDatabaseCallbacks.h

 /*
  * Copyright (C) 2011 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
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef IDBDatabaseCallbacks_h
 #define IDBDatabaseCallbacks_h
 
+#include "heap/Handle.h"
 #include "modules/indexeddb/IDBDatabaseError.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class IDBDatabaseCallbacks : public RefCounted<IDBDatabaseCallbacks> {
+class IDBDatabaseCallbacks : public HeapAllocatedFinalized<IDBDatabaseCallbacks> {
+    DECLARE_GC_INFO
 public:
     virtual ~IDBDatabaseCallbacks() { }
 
     virtual void onForcedClose() = 0;
     virtual void onVersionChange(int64_t oldVersion, int64_t newVersion) = 0;
 
     virtual void onAbort(int64_t transactionId, PassRefPtr<IDBDatabaseError>) = 0;
     virtual void onComplete(int64_t transactionId) = 0;
+
+    virtual void trace(Visitor*) = 0;
 };
 
 } // namespace WebCore
 
 #endif // IDBDatabaseCallbacks_h