[Autofill] Do not offer autofill suggestions on insecure forms

components/autofill/core/browser/autofill_assistant.cc

Index: components/autofill/core/browser/autofill_assistant.cc
diff --git a/components/autofill/core/browser/autofill_assistant.cc b/components/autofill/core/browser/autofill_assistant.cc
index b7f00b5a30c771fef84c59c48faae03623e0dbe9..39dcbba19b2dd9b5f87a81356ef1ed0c691c6b05 100644
--- a/components/autofill/core/browser/autofill_assistant.cc
+++ b/components/autofill/core/browser/autofill_assistant.cc
@@ -30,7 +30,8 @@ bool AutofillAssistant::CanShowCreditCardAssist(
   if (form_structures.empty() || credit_card_form_data_ != nullptr ||
       !IsAutofillCreditCardAssistEnabled() ||
       !autofill_manager_->client()->IsContextSecure(
-          form_structures.front()->source_url())) {
+          form_structures.front()->source_url()) ||
+      !form_structures.front()->target_url().SchemeIs("https")) {
     return false;
   }