Rework dispatchEvent so it is consistent for isTrusted support.

Source/modules/indexeddb/IDBRequest.h

 /*
  * 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 100 matching lines @@
 
     // ActiveDOMObject
     bool hasPendingActivity() const final;
     void stop() final;
 
     // EventTarget
     const AtomicString& interfaceName() const override;
     ExecutionContext* executionContext() const final;
     void uncaughtExceptionInEventHandler() final;
 
-    using EventTarget::dispatchEvent;
-    bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;
-
     // Called by a version change transaction that has finished to set this
     // request back from DONE (following "upgradeneeded") back to PENDING (for
     // the upcoming "success" or "error").
     void transactionDidFinishAndDispatch();
 
     IDBCursor* getResultCursor() const;
 
 protected:
     IDBRequest(ScriptState*, IDBAny* source, IDBTransaction*);
     void enqueueEvent(PassRefPtrWillBeRawPtr<Event>);
     void dequeueEvent(Event*);
     virtual bool shouldEnqueueEvent() const;
     void onSuccessInternal(IDBAny*);
     void setResult(IDBAny*);
 
+    // EventTarget
+    bool dispatchEventInternal(PassRefPtrWillBeRawPtr<Event>) override;
+
     bool m_contextStopped;
     Member<IDBTransaction> m_transaction;
     ReadyState m_readyState;
     bool m_requestAborted; // May be aborted by transaction then receive async onsuccess; ignore vs. assert.
 
 private:
     void setResultCursor(IDBCursor*, IDBKey*, IDBKey* primaryKey, PassRefPtr<IDBValue>);
     void ackReceivedBlobs(const IDBValue*);
     void ackReceivedBlobs(const Vector<RefPtr<IDBValue>>&);
 
@@ skipping 16 matching lines @@
     RefPtr<IDBValue> m_cursorValue;
 
     bool m_didFireUpgradeNeededEvent;
     bool m_preventPropagation;
     bool m_resultDirty;
 };
 
 } // namespace blink
 
 #endif // IDBRequest_h