Enable iframe support for web payments by default.

third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.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/HTMLIFrameElementPayments.h"
 
 #include "core/dom/QualifiedName.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "platform/RuntimeEnabledFeatures.h"
 
@@ skipping 31 matching lines @@
   if (!supplement) {
     supplement = new HTMLIFrameElementPayments();
     provideTo(iframe, supplementName(), supplement);
   }
   return *supplement;
 }
 
 // static
 bool HTMLIFrameElementPayments::allowPaymentRequest(
     HTMLIFrameElement& element) {
-  return RuntimeEnabledFeatures::paymentRequestIFrameEnabled() &&
+  return RuntimeEnabledFeatures::paymentRequestEnabled() &&
          element.fastHasAttribute(HTMLNames::allowpaymentrequestAttr);
 }
 
 DEFINE_TRACE(HTMLIFrameElementPayments) {
   Supplement<HTMLIFrameElement>::trace(visitor);
 }
 
 }  // namespace blink