Add a timeout to the update event in case page doesn't resolve promise from updateWith

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 510c707dbf2fc8e33df6f30299c5d7c57ed60219..87141d1f96e498c01bd522fce3540742e6788929 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.h
@@ -10,6 +10,7 @@
 #include "core/events/Event.h"
 #include "modules/ModulesExport.h"
 #include "modules/payments/PaymentRequestUpdateEventInit.h"
+#include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
@@ -31,6 +32,8 @@ public:
 
     void updateWith(ScriptState*, ScriptPromise, ExceptionState&);
 
+    void onTimerFired(Timer<PaymentRequestUpdateEvent>*);
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
@@ -39,6 +42,7 @@ private:
 
     Member<PaymentUpdater> m_updater;
     bool m_waitForUpdate;
+    Timer<PaymentRequestUpdateEvent> m_abortTimer;
 };
 
 } // namespace blink