Mark IFrame support in PaymentRequest experimental

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

Index: third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.cpp
diff --git a/third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.cpp b/third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.cpp
index 6ce4b014a285edca5a6ecd3dc35d15b6d407c7c0..d06a96aa83bb6c16bae2f37c095fae416456a5c7 100644
--- a/third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.cpp
+++ b/third_party/WebKit/Source/modules/payments/HTMLIFrameElementPayments.cpp
@@ -6,6 +6,7 @@
 
 #include "core/dom/QualifiedName.h"
 #include "core/html/HTMLIFrameElement.h"
+#include "platform/RuntimeEnabledFeatures.h"
 
 namespace blink {
 
@@ -48,7 +49,8 @@ HTMLIFrameElementPayments& HTMLIFrameElementPayments::from(
 // static
 bool HTMLIFrameElementPayments::allowPaymentRequest(
     HTMLIFrameElement& element) {
-  return element.fastHasAttribute(HTMLNames::allowpaymentrequestAttr);
+  return RuntimeEnabledFeatures::paymentRequestIFrameEnabled() &&

[Rick Byers, 2016/11/23 16:56:43]

It seems like it would be nice if the bindings generator generated a method like
this automatically (so we don't have to remember to add an additional
RuntimeEnabledFeatures check), but putting the check here explicitly is nice and
simple and definitely the right place to have it.  Thanks!

[please use gerrit instead, 2016/11/23 17:27:36]

Acknowledged.

+         element.fastHasAttribute(HTMLNames::allowpaymentrequestAttr);
 }
 
 DEFINE_TRACE(HTMLIFrameElementPayments) {