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

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEventTest.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEventTest.cpp b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEventTest.cpp
index ce0d4a7f888e9e75a05883b91e23d1eb2eadf2ff..3e72fe9d2d4fd4dd10b65bee278ada227f9e9647 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEventTest.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestUpdateEventTest.cpp
@@ -101,5 +101,18 @@ TEST(PaymentRequestUpdateEventTest, UpdaterNotRequired)
     EXPECT_FALSE(scope.getExceptionState().hadException());
 }
 
+TEST(PaymentRequestUpdateEventTest, OnUpdatePaymentDetailsTimeout)
+{
+    V8TestingScope scope;
+    PaymentRequestUpdateEvent* event = PaymentRequestUpdateEvent::create();
+    MockPaymentUpdater* updater = new MockPaymentUpdater;
+    event->setPaymentDetailsUpdater(updater);
+
+    EXPECT_CALL(*updater, onUpdatePaymentDetails(testing::_)).Times(0);
+    EXPECT_CALL(*updater, onUpdatePaymentDetailsFailure(testing::_));
+
+    event->onTimerFired(0);
+}
+
 } // namespace
 } // namespace blink