[part 2] Make classes and structures in modules fast-allocated.

Source/modules/indexeddb/WebIDBDatabaseCallbacksImpl.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
@@ skipping 19 matching lines @@
 #include "public/platform/WebString.h"
 #include "public/platform/modules/indexeddb/WebIDBDatabaseCallbacks.h"
 #include "public/platform/modules/indexeddb/WebIDBDatabaseError.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class WebIDBDatabaseCallbacksImpl final : public WebIDBDatabaseCallbacks {
+    WTF_MAKE_FAST_ALLOCATED(WebIDBDatabaseCallbacksImpl);
 public:
     static PassOwnPtr<WebIDBDatabaseCallbacksImpl> create(IDBDatabaseCallbacks*);
 
     ~WebIDBDatabaseCallbacksImpl() override;
 
     void onForcedClose() override;
     void onVersionChange(long long oldVersion, long long newVersion) override;
     void onAbort(long long transactionId, const WebIDBDatabaseError&) override;
     void onComplete(long long transactionId) override;
 
 private:
     explicit WebIDBDatabaseCallbacksImpl(IDBDatabaseCallbacks*);
 
     Persistent<IDBDatabaseCallbacks> m_callbacks;
 };
 
 } // namespace blink
 
 #endif // WebIDBDatabaseCallbacksImpl_h