Drop document.createEvent support for things still behind a flag

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/payments/PaymentRequestUpdateEvent.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptFunction.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 67 matching lines @@
 
     Member<PaymentUpdater> m_updater;
 };
 
 } // namespace
 
 PaymentRequestUpdateEvent::~PaymentRequestUpdateEvent()
 {
 }
 
-PaymentRequestUpdateEvent* PaymentRequestUpdateEvent::create()
-{
-    return new PaymentRequestUpdateEvent();
-}
-
 PaymentRequestUpdateEvent* PaymentRequestUpdateEvent::create(const AtomicString& type, const PaymentRequestUpdateEventInit& init)
 {
     return new PaymentRequestUpdateEvent(type, init);
 }
 
 void PaymentRequestUpdateEvent::setPaymentDetailsUpdater(PaymentUpdater* updater)
 {
     DCHECK(!m_abortTimer.isActive());
     m_abortTimer.startOneShot(abortTimeout, BLINK_FROM_HERE);
     m_updater = updater;
@@ skipping 29 matching lines @@
 
     m_updater->onUpdatePaymentDetailsFailure("Timed out as the page didn't resolve the promise from change event");
 }
 
 DEFINE_TRACE(PaymentRequestUpdateEvent)
 {
     visitor->trace(m_updater);
     Event::trace(visitor);
 }
 
-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)
 {
 }
 
 } // namespace blink