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

Source/modules/indexeddb/WebIDBCallbacksImpl.h

 /*
  * Copyright (C) 2013 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.
  *
@@ skipping 30 matching lines @@
 class WebData;
 class WebIDBCursor;
 class WebIDBDatabase;
 class WebIDBDatabaseError;
 class WebIDBKey;
 class WebIDBKeyPath;
 struct WebIDBMetadata;
 struct WebIDBValue;
 
 class WebIDBCallbacksImpl final : public WebIDBCallbacks {
+    WTF_MAKE_FAST_ALLOCATED(WebIDBCallbacksImpl);
 public:
     static PassOwnPtr<WebIDBCallbacksImpl> create(IDBRequest*);
 
     ~WebIDBCallbacksImpl() override;
 
     // Pointers transfer ownership.
     void onError(const WebIDBDatabaseError&) override;
     void onSuccess(const WebVector<WebString>&) override;
     void onSuccess(WebIDBCursor*, const WebIDBKey&, const WebIDBKey& primaryKey, const WebData&, const WebVector<WebBlobInfo>&) override;
     void onSuccess(WebIDBDatabase*, const WebIDBMetadata&) override;
@@ skipping 11 matching lines @@
 private:
     explicit WebIDBCallbacksImpl(IDBRequest*);
 
     Persistent<IDBRequest> m_request;
     int m_asyncOperationId;
 };
 
 } // namespace blink
 
 #endif // WebIDBCallbacksImpl_h