Prevent usage of web payments API over insecure HTTPS.

chrome/browser/ui/views/payments/cvc_unmask_view_controller_browsertest.cc

 // Copyright 2017 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 "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/views/payments/payment_request_browsertest_base.h"
 #include "components/autofill/core/browser/autofill_test_utils.h"
 
 namespace payments {
 
 class CvcUnmaskViewControllerTest : public PaymentRequestBrowserTestBase {
  protected:
   CvcUnmaskViewControllerTest()
       : PaymentRequestBrowserTestBase(
             "/payment_request_no_shipping_test.html") {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CvcUnmaskViewControllerTest);
 };
 
 IN_PROC_BROWSER_TEST_F(CvcUnmaskViewControllerTest, CvcSentToResponse) {
   AddCreditCard(autofill::test::GetCreditCard());  // Visa.
 
   InvokePaymentRequestUI();
   ResetEventObserver(DialogEvent::DIALOG_CLOSED);
   PayWithCreditCardAndWait(base::ASCIIToUTF16("012"));
 
-  ExpectBodyContains(std::vector<base::string16>{
-      base::UTF8ToUTF16("\"cardSecurityCode\": \"012\"")});
+  ExpectBodyContains({"\"cardSecurityCode\": \"012\""});
 }
 
 }  // namespace payments