Revert of [Web Payments] Mojom namespace blink -> payments

third_party/WebKit/Source/modules/payments/PaymentsValidators.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/PaymentsValidators.h"
 
 #include "bindings/core/v8/ScriptRegexp.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/text/StringImpl.h"
 
@@ skipping 83 matching lines @@
   if (optionalErrorMessage)
     *optionalErrorMessage = "'" + code +
                             "' is not a valid ISO 15924 script code, should be "
                             "an upper case letter [A-Z] followed by 3 lower "
                             "case letters [a-z]";
 
   return false;
 }
 
 bool PaymentsValidators::isValidShippingAddress(
-    const payments::mojom::blink::PaymentAddressPtr& address,
+    const mojom::blink::PaymentAddressPtr& address,
     String* optionalErrorMessage) {
   if (!isValidCountryCodeFormat(address->country, optionalErrorMessage))
     return false;
 
   if (!isValidLanguageCodeFormat(address->language_code, optionalErrorMessage))
     return false;
 
   if (!isValidScriptCodeFormat(address->script_code, optionalErrorMessage))
     return false;
 
@@ skipping 14 matching lines @@
     return true;
 
   if (optionalErrorMessage)
     *optionalErrorMessage =
         "Error message should be at most 2048 characters long";
 
   return false;
 }
 
 }  // namespace blink