Oilpan: Prepare to move SQLTransactionBackendSync and SQLTransactionSync to Oilpan heap.

Source/modules/webdatabase/SQLTransactionSync.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 20 matching lines @@
 
 #include "config.h"
 #include "modules/webdatabase/SQLTransactionSync.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "modules/webdatabase/DatabaseSync.h"
 #include "modules/webdatabase/SQLTransactionSyncCallback.h"
 
 namespace WebCore {
 
-PassRefPtr<SQLTransactionSync> SQLTransactionSync::create(DatabaseSync* db, PassOwnPtr<SQLTransactionSyncCallback> callback, bool readOnly)
+PassRefPtrWillBeRawPtr<SQLTransactionSync> SQLTransactionSync::create(DatabaseSync* db, PassOwnPtr<SQLTransactionSyncCallback> callback, bool readOnly)
 {
-    return adoptRef(new SQLTransactionSync(db, callback, readOnly));
+    return adoptRefWillBeNoop(new SQLTransactionSync(db, callback, readOnly));
 }
 
 SQLTransactionSync::SQLTransactionSync(DatabaseSync* db, PassOwnPtr<SQLTransactionSyncCallback> callback, bool readOnly)
     : SQLTransactionBackendSync(db, callback, readOnly)
 {
     ASSERT(m_database->executionContext()->isContextThread());
     ScriptWrappable::init(this);
+    db->observeTransaction(*this);
 }
 
 SQLTransactionSync* SQLTransactionSync::from(SQLTransactionBackendSync* backend)
 {
     return static_cast<SQLTransactionSync*>(backend);
 }
 
 } // namespace WebCore