Properly name the timeout callback for update event.

third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h

Index: third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
index 69162dc0284fff62f8a214e56dba8b1be863dc1b..4f6ab744211852822eadbb783d8d127df9facc43 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
@@ -31,13 +31,15 @@ public:
 
     void updateWith(ScriptState*, ScriptPromise, ExceptionState&);
 
-    void onTimerFired(TimerBase*);
-
     DECLARE_VIRTUAL_TRACE();
 
+    void onUpdateEventTimeoutForTesting();
+
 private:
     PaymentRequestUpdateEvent(const AtomicString& type, const PaymentRequestUpdateEventInit&);
 
+    void onUpdateEventTimeout(TimerBase*);
+
     Member<PaymentUpdater> m_updater;
     bool m_waitForUpdate;
     Timer<PaymentRequestUpdateEvent> m_abortTimer;