Prevent usage of web payments API over insecure HTTPS.

components/payments/content/payment_request_state.cc

Index: components/payments/content/payment_request_state.cc
diff --git a/components/payments/content/payment_request_state.cc b/components/payments/content/payment_request_state.cc
index c3f152640f2dfc5f3f3a10435ba887bfd6224670..284699feae9e06384b1ebbd53a7d944cbf00f940 100644
--- a/components/payments/content/payment_request_state.cc
+++ b/components/payments/content/payment_request_state.cc
@@ -59,6 +59,10 @@ bool PaymentRequestState::CanMakePayment() const {
   return false;
 }
 
+bool PaymentRequestState::AreRequestedMethodsSupported() const {
+  return !spec_->supported_card_networks().empty();
+}
+
 void PaymentRequestState::AddObserver(Observer* observer) {
   CHECK(observer);
   observers_.AddObserver(observer);