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

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp
index d04dd8b983de79b8b739c1e8e234ca1952eccfe4..02e5161e759e7c1a53441ad2df3c00ee7f7481bd 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEvent.cpp
@@ -9,10 +9,13 @@
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "modules/payments/PaymentUpdater.h"
+#include "public/platform/WebTraceLocation.h"
 
 namespace blink {
 namespace {
 
+static const int abortTimeout = 60; // Reject the payment request if the page does not resolve the promise from updateWith within 60 seconds.
+
 class UpdatePaymentDetailsFunction : public ScriptFunction {
 public:
     static v8::Local<v8::Function> createFunction(ScriptState* scriptState, PaymentUpdater* updater)
@@ -93,6 +96,8 @@ PaymentRequestUpdateEvent* PaymentRequestUpdateEvent::create(const AtomicString&
 
 void PaymentRequestUpdateEvent::setPaymentDetailsUpdater(PaymentUpdater* updater)
 {
+    DCHECK(!m_abortTimer.isActive());
+    m_abortTimer.startOneShot(abortTimeout, BLINK_FROM_HERE);
     m_updater = updater;
 }
 
@@ -113,11 +118,20 @@ void PaymentRequestUpdateEvent::updateWith(ScriptState* scriptState, ScriptPromi
 
     stopImmediatePropagation();
     m_waitForUpdate = true;
+    m_abortTimer.stop();
 
     promise.then(UpdatePaymentDetailsFunction::createFunction(scriptState, m_updater),
         UpdatePaymentDetailsErrorFunction::createFunction(scriptState, m_updater));
 }
 
+void PaymentRequestUpdateEvent::onTimerFired(Timer<PaymentRequestUpdateEvent>*)
+{
+    if (!m_updater)
+        return;
+
+    m_updater->onUpdatePaymentDetailsFailure(ScriptValue());
+}
+
 DEFINE_TRACE(PaymentRequestUpdateEvent)
 {
     visitor->trace(m_updater);
@@ -126,12 +140,14 @@ DEFINE_TRACE(PaymentRequestUpdateEvent)
 
 PaymentRequestUpdateEvent::PaymentRequestUpdateEvent()
     : m_waitForUpdate(false)
+    , m_abortTimer(this, &PaymentRequestUpdateEvent::onTimerFired)
 {
 }
 
 PaymentRequestUpdateEvent::PaymentRequestUpdateEvent(const AtomicString& type, const PaymentRequestUpdateEventInit& init)
     : Event(type, init)
     , m_waitForUpdate(false)
+    , m_abortTimer(this, &PaymentRequestUpdateEvent::onTimerFired)
 {
 }