--- a/dom/indexedDB/IDBTransaction.h
+++ b/dom/indexedDB/IDBTransaction.h
@@ -173,36 +173,16 @@ private:
 
   // Only touched on the database thread.
   PRUint32 mSavepointCount;
 
   bool mHasInitialSavepoint;
   bool mAborted;
 };
 
-NS_STACK_CLASS
-class AutoTransactionRequestNotifier
-{
-public:
-  AutoTransactionRequestNotifier(IDBTransaction* aTransaction)
-  : mTransaction(aTransaction)
-  {
-    NS_ASSERTION(mTransaction, "Null pointer!");
-    mTransaction->OnNewRequest();
-  }
-
-  ~AutoTransactionRequestNotifier()
-  {
-    mTransaction->OnRequestFinished();
-  }
-
-private:
-  nsRefPtr<IDBTransaction> mTransaction;
-};
-
 class CommitHelper : public nsIRunnable
 {
 public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIRUNNABLE
 
   CommitHelper(IDBTransaction* aTransaction)
   : mTransaction(aTransaction),